PORTABLE SEMI-AUTOMATIC CASHEW APPLE AND NUT SEPARATION SYSTEM AND METHOD THEREOF

Abstract

The present invention relates to a portable semi-automatic system (100) for efficiently separating cashew nuts from cashew apples. The system (100) comprises a main frame (102) that provides structural support, a motor (104) coupled to a primary shaft (106) to generate rotational power. A pulley (108) mounted on the primary shaft (106) transfers the rotational power to a belt drive (110), which drives a secondary shaft (114). The system (100) includes a pedestal bearing (112) for stable rotation of the primary shaft (106). The secondary shaft (114) powers internal expanding gripper (116), which securely grips the cashew nuts. The secondary shaft (114) provides twisting motion through its rotation, enabling internal expanding gripper (116) to separate cashew nuts from cashew apples. The separated nuts are ejected through an outlet (118). The system (100) automates the separation process, reducing labor-cost, time consumption, and improves the efficiency and safety in cashew nut processing.

Specification

Description:FIELD OF THE INVENTION
The present invention relates to a portable semi-automatic cashew apple and nut separator with twisting mechanism. In Particular, the present inventions relates to the semi-automatic system and method for separating cashew nuts from cashew apples efficiently, and preserve the quality of both cashew products.

BACKGROUND OF THE INVENTION
Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.

The cashew tree (Anacardium occidentale) is a tropical evergreen tree native to northeastern Brazil. Nowadays, the cashew tree is grown around the world especially in Brazil, Vietnam, India, Nigeria, Indonesia, Philippines, Benin, Guinea-Bissau, and the Ivory Coast. It is now widely cultivated in tropical regions for its cashew nuts and cashew apples. It belongs to Anacardiaceae family and has commercial utilization. The cashew tree is evergreen with different sizes, but usually, it is 8 to 15 m in height. The real fruit from cashew tree is the nut. The peduncle, known as the cashew apple, responsible for 90% of the weight, is, in fact, a pseudo fruit. Its colour ranges from yellow to red. Both parts are edible, but before processing of raw cashew nuts it needs to be separated from the cashew fruit, further for extracting the kernels the nut needs to be removed from the shell that contains a corrosive liquid called "cashew nut shell liquid."

Cashew apple is pseudo fruit and is the part of the tree that connects it to the cashew nut, the tree's true fruit. The nut is enclosed in a hard shell that contains oil, known as cashew nut shell liquid (CNSL), which must be carefully extracted. The cashew apple is a pear-shaped fruit that grows at the end of the cashew nut. It is edible and has a sweet, juicy flavor. The cashew apple is very popular and highly consumed as a drink and as concentrated juice. Cashew apple is rich in fructose, glucose, minerals, several amino acids and is considered a good antioxidant with high ascorbic acid and phenols. (Zepka et al., 2009; Rabelo et al., 2009).

Currently, cashew nuts are separated manually from cashew apples. The degree of bruising, the kind of nut, and the depth to which the nut is embedded in the apple's flesh can all affect how difficult it is to remove the nuts from bruised apples. It may be simpler to remove the nuts from lightly bruised apples than from heavily bruised ones where the flesh is soft. The flesh of fresher apples is usually firmer, which facilitates the removal of nuts. While removing nuts from apples may be more difficult with overripe or bruised apples than with fresh ones, it is certainly possible with the right approach. Undoubtedly, removing cashew nuts from the apple can be a labor-intensive and time-consuming task, especially if done by hand. Labor costs can be significant, particularly in regions where wages are high. Efficient separation of cashew apples from nuts is critical for maintaining the quality and market value of both products. Any delays or inefficiencies in the process can impact the overall profitability of cashew production.

In view of the above discussion, it is observed that the cashew nuts are separated manually from the cashew apples, which increases the chances of the fruits being damaged. Also, the separation of cashew nuts from cashew apples is a labour-intensive process. While removing cashew nuts from the cashew apples may be more difficult with overripe or bruised apples than with fresh ones, which is time-consuming and impacts the quality and uniformity of the resulting products, particularly, in regions where wages are high. Further, efficient separation of cashew apples from nuts is critical to maintain quality and market value of both products. Therefore, there is an important need to address these challenges by introducing a portable semi-automatic cashew apple and nut separation system and method to reduce time and labour requirements and improves the separation efficiency.

OBJECTIVES OF THE INVENTION:
In view of the forgoing limitations inherent in the state of the art, some of the objects of the present invention, which at least one embodiment here satisfy, are listed below.

It is an object of the present invention to provide a portable semi-automatic cashew apple and nut separation system with ease of manufacture at a low-cost, which is affordable.

It is the principle object of the present invention to provide a portable semi-automatic cashew apple and nut separation system that efficiently separates nuts from the cashew apples with minimal manual intervention, enhancing productivity.

It is another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system that reduces the time consumption and labor cost.

It is yet another object of the present invention to provide a user friendly structure of the portable semi-automatic cashew apple and nut separation system that reduces operator's fatigue.

It is another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system includes safety features, such as a cut-off device (MCB) and locking system for safety guards, ensuring the protection of operators during operation.

It is still another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system that is easy to transport and use in different locations particularly in field or small-scale processing operations.

It is yet another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system with robust materials, like a mild steel frame, ensuring that the system can withstand stresses during operation and provide long-lasting performance.

It is another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system along with a variable-frequency drive (VFD) that allows precise control over motor speed, optimizing energy consumption and improving the performance based on different types of cashew apples.

It is yet another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system that minimizes vibrations, misalignment, and mechanical wear through proper alignment of components such as the motor, V-belts, and pulleys, thereby increasing the lifespan of the system.

It is another object of the present invention to provide a portable semi-automatic cashew apple and nut separation system with removable covers and strategically placed mounting points for easy inspection, repair, and replacement of components, ensuring straightforward maintenance, and ensures that the system separates the nuts and apples with minimal bruising or damage, preserving the quality of both products for better marketability.

These and other objects and advantages of the present invention would be apparent to a person skilled in the art after consideration of the following detailed description taken into consideration with accompanying drawings in which preferred embodiments of the present subject matter are illustrated.

SUMMARY OF THE INVENTION:

This summary is provided to introduce concepts related to a monitoring system and its structural features. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

According to the present subject disclosure, there is provided a portable semi-automatic system directed to improve the efficiency of separating cashew nuts from cashew apples. The portable semi-automatic system includes a robust main frame that provides the necessary structural support for all its components. At the core of the system is a motor, which is mechanically coupled to a primary shaft mounted on the main frame. The motor generates rotational power, which is essential for the operation of the system. This rotational power is transmitted from the primary shaft to a pulley mounted on it. The pulley further transfers the power through a belt drive, which serves as the primary mechanism to drive a secondary shaft.

Further, the secondary shaft plays a critical role in the separation process. It is powered by the rotation of the pulley and the belt drive, which together transmit the rotational motion required to operate the system. The secondary shaft is connected to an internal expanding gripper, a key component designed to securely grip the cashew nuts during operation. As the secondary shaft rotates, it facilitates a twisting motion for the internal expanding gripper. This twisting motion is essential for separating the cashew nuts from the cashew apples.

The internal expanding gripper ensures that the nuts are held firmly while the twisting motion works to effectively break them free from the apples. Once separated, the cashew nuts are ejected through an outlet, and completing the process. The system intended to automate the separation task, significantly reducing labor and time consumption, and improves the safety and efficiency in cashew nut processing. The portable semi-automatic system provides a streamlined, mechanical approach to what has traditionally been a labor-intensive manual process.

In an aspect, the main frame strategically positioned over a support leg to provide strength and rigidity to withstand the loads and stresses that occur during the operation.

In an aspect, the main frame comprises a safety switch configured to disconnect power of the motor for automatically stopping the operation in situation of overcurrent or short-circuit, ensuring protection of both the system and the operator; a power switch configured to allow the operator to manually start or stop the operation of the system.

In an aspect, the motor electrically connected to a speed regulator switch along with a variable frequency drive, allowing the operator to adjust the speed of motor according to the load requirements

In an aspect, the system enclosed with a top cover equipped with a top cover locking mechanism, and a top cover hinges, configured to securely lock the top cover and facilitate easy opening and closing of the top cover for convenient access

In an aspect, the top cover equipped with a handle to facilitate easy removal and handling of the top cover during maintenance and inspection

In an aspect, the system equipped with a front casing and a front casing knob to ensure the operator safety by restricting access to internal moving parts.

In an aspect, a method for separating cashew nuts from cashew apples using a portable semi-automatic system involves several key steps. First, the cashew apples are fed into the system, which is then activated by turning on the motor. The motor generates rotational power that is transmitted to a primary shaft. This shaft drives a pulley that engages with a belt, transmitting rotational power from the belt to a secondary shaft. The secondary shaft, in turn, drives an internal expanding gripper, which receives the rotational power and converts it into a twisting motion. The internal expanding gripper securely grips the cashew nuts, applying the twisting motion to the nuts relative to the cashew apples. This twisting action effectively separates the nuts from the apples without damaging either component. Once the nuts have been separated, the system ejects the cashew nuts through an outlet. This method automates a process that is typically labor-intensive, improving efficiency, reducing the time required for separation, and minimizing the effort needed. Through controlled motor and shaft operation, this system ensures smooth and precise separation, offering a more reliable and user-friendly alternative to manual methods.

Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS:

It is to be noted, however, that the appended drawings illustrate only typical embodiments of the present subject matter and are therefore not to be considered for limiting of its scope, for the invention may admit to other equally effective embodiments. The detailed description is described with reference to the accompanying figures. In the figures, a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the figures to reference like features and components. Some embodiments of system or methods or structure in accordance with embodiments of the present subject matter are now described, by way of example, and with reference to the accompanying figures, in which:

Figure 1 illustrates a front view of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure;

Figure 2 illustrates left side view of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure;

Figure 3 illustrates right side view of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure;

Figure 4 illustrates top view of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure;

Figure 4 illustrates an isometric view of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure, and

Figure 6 illustrates different views (A: Top view, B: Isometric view, C: Front view, and D: Side view) of a portable semi-automatic cashew apple and nut separation system, in accordance with embodiment of the present disclosure.

The figure depicts the embodiment of the present invention for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION OF THE INVENTION
The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein are not intended to limit the anticipated variations of embodiments, on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.

It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.

It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that the description merely illustrates the principles of the present subject matter. It will thus be appreciated that those skilled in the art will be able to devise various arrangements that, although not explicitly described herein, embody the principles of the present subject matter and are included within its scope.

In the following detailed description of the embodiments of the disclosure, reference is made to the accompanying drawings that form a part hereof, and in which are shown by way of illustration specific embodiments in which the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the disclosure, and it is to be understood that other embodiments may be utilized and that changes may be made without departing from the scope of the present disclosure. The following description is, therefore, not to be taken in a limiting sense.

Hereinafter, a description of an embodiment with several components in communication with each other does not imply that all such components are required. On the contrary, a variety of optional components are described to illustrate the wide variety of possible embodiments of the present disclosure.

The present disclosure introduces a portable semi-automatic system (100). The portable semi-automatic system (100) directed to separate cashew nuts from their cashew apples. The portable semi-automatic system (100) is a machine, which is operated by user or operator mechanically. The portable semi-automatic system (100) comprises a main frame (102) that provides structural support. A motor (104) is mechanically coupled to a primary shaft (106) on the main frame (102) to generate rotational power. A pulley (108) is mounted on the primary shaft (106) to transmit this rotational power to a belt drive (110). A pedestal bearing (112) ensures smooth and stable rotation of the primary shaft (106). The pulley (108) transfers the rotational power to a secondary shaft (114) via the belt drive (110). An internal expanding gripper (116) is connected to the secondary shaft (114) to securely grip the cashew nuts. The secondary shaft (114) facilitates twisting motion in the internal expanding gripper (116), allowing it to separate the cashew nut from the cashew apples, and then the separated cashew nuts are ejected through an outlet (118).

Referring to figure 1, a portable semi-automatic system (100) built around a main frame (102), which provides the structural foundation for the entire system (100). The main frame (102) ensures that the various components are held together in a stable and secure manner during operation of the portable semi-automatic system (100). The main frame (102) is also equipped with support leg (120), which provides the stability to the portable semi-automatic system (100), when it is in use, preventing it from shifting or tipping over during operation of the system (100). The main frame (102) made of mild steel square pipe and intended to withstand the heavy loads and stresses that occur during the operation of the portable semi-automatic system (100). To minimize deflection, the main frame (102) is rigidly and strongly constructed. The main frame (102) is covered with a removable front casing (136). The front casing (136) is made and installed in such a manner that it can be easily closed and opened for repair and replacement of the internal components of the system (100).

In an aspect, the main frame (102) comprises a safety switch (122) and power switch (124). The safety switch (122) or cutoff switch (MCB) configured to disconnect power of the motor (104) for automatically stopping the operation in case of overcurrent or short-circuiting, ensuring protection of both the system (100) and the operator. The cutoff device (122) acts as a fail-safe mechanism, automatically stopping operation of the system (100) under certain conditions to avoid accidents, damage, or undesirable outcomes. The cutoff device (122) is installed in the most appropriate location within the machine's control system. It is easily accessible to operators and well-positioned to respond quickly to hazardous situations.

Further, the power switch (124) configured to allow the operator to manually start or stop the operation of the system (100). Basically, the power switch (124) controls the power supply to the system (100), enabling operators to easily turn the system (100) on and off as needed during the operation.

In an aspect, a portable semi-automatic system (100) powered through a motor (104). The motor (104) mechanically coupled to a primary shaft (106) on the main frame (102) to generate rotational power to drive the separation process of the semi-automatic system (100). The motor (104) is a single-phase AC induction motor with a power of 180 watts, a voltage rating of 230/415 VAC, a speed of 1440 RPM, and operates at a frequency of 50 Hz. The speed of the motor (104) and twisting mechanism is 1:0.119. The twisting mechanism is made up of the plurality of internal expanding grippers (116), cut pieces of PVC pipe, and flexible rubber. The gripper (116) fastened to cut pieces of PVC pipe and wrapped in the flexible rubber to serve as an expanded mechanism for large sizes of cashew nuts. The motor (104) properly mounted and aligned to ensure efficient power transmission and reduce mechanical wear. The motor (104) securely coupled to a main frame (102) and aligned with a secondary drive shaft (114) through belt drive (110) and pulley (108) to drive the secondary shaft (114). Further, the rotary motion of the secondary shaft (114) is transmitted to an internal expanding gripper (116) that securely engages the cashew nuts. The secondary shaft (114) facilities twisting motion or torsional motion in the internal expanding gripper (116) to separate the cashew nuts from the cashew apples. After separation process, the cashew nuts are ejected through an outlet (118). The mechanism comprises four internal expanding grippers (116). The 172 RPM is the ideal speed of the portable semi-automatic system (100) for separating the nuts from the cashew apples. The minimum and maximum clearances of the internal expanding gripper (116) are 20.50 mm and 38.0 mm respectively. The average capacity of the portable semi-automatic system (100) is 35.0 kgh-1 with separation efficiency of 91.45%.

In an aspect, the motor (104) electrically connected to a speed regulator switch (126) along with a variable frequency drive (128), allowing the operator to adjust the speed of motor (104) according to the load requirements. This configuration allows the operator to adjust the speed of the system (100), providing flexibility in handling different loads and optimizing performance for various cashew sizes or processing requirements.

In an aspect, the main frame (102) also equipped with a pulley (108), a pedestal bearing (112), and a secondary drive shaft (114). The pulley (108) is mounted on the primary shaft (106) and is connected to the belt drive (110). It transmits rotational power from the motor (104) to the secondary drive shaft (114), which provides the twisting motion or torsional motion to the internal expanding gripper (116) through rotation of the secondary drive shaft (114) to separate the cashew nut from the cashew apples.

In an aspect, the pedestal bearing (112) supports the primary shaft (106) and secondary shaft (114), reducing friction and ensuring smooth and stable rotation of the drive shafts, which is crucial for the reliable operation of the twisting mechanism. Further, the secondary drive shaft (114) is a core drive shaft, which is driven by the belt (110) and pulley drive (108) mechanism that transmits rotational power to the internal expanding gripper (116). The secondary drive shaft (114) is responsible for enabling the twisting motion that separates the cashew nuts from the cashew apples.

In an aspect, the portable semi-automatic system (100) enclosed with a top cover (130) equipped with a top cover locking mechanism (134), and a top cover hinges (140), configured to securely lock the top cover (130) and facilitate easy opening and closing of the top cover (130) for convenient access. The top cover (130) encloses the moving parts of the system (100), such as the motor (104), primary shaft (106) and secondary shaft (114), and belt drive (110), preventing dust and foreign objects from entering the system (100) and ensuring operator safety. Further, a handle (132) is provided for easy lifting and lowering of the top cover (130). The top cover handle (132) facilitates convenient access to the internal components during maintenance or inspection.

In an aspect, the top cover locking mechanism (134) ensures that the top cover (130) is securely fastened during operation, preventing accidental opening and providing safety by reducing the risk of exposure to moving parts.

In an aspect, the portable semi-automatic system (100) equipped with a front casing (136). The front panel of the system (100) that houses various operational components and provides access to the cashew nut outlet. It adds to the structural integrity and design aesthetics of the system (100). Also, the portable semi-automatic system (100) has a cashew nut outlet (118). The outlet (118) is the exit point through which separated cashew nuts are discharged from the system (100) after being processed. It ensures smooth and efficient collection of the separated nuts during the operation of the system (100).

Figure 2 depicts left side view of a portable semi-automatic system (100) along with a main frame (102), a top cover (130), a top locking mechanism (134), a raw cashew nut outlet (118), and a front casing knob (138). As discussed in figure 1, the main frame (102) is the structural backbone of the portable semi-automatic system (100) that provides stability and support for all other components. The main frame (102) is typically made of strong materials like mild steel, which can withstand the mechanical stresses during operation. The frame is intended to house and support the various mechanical and electrical components while ensuring that the system (100) remains balanced during use.

In an aspect, the top cover (130) is an essential protective feature of the system (100). The top cover (130) encloses the internal mechanisms and prevents accidental contact with moving parts during operation. The top cover (130) also protects the internal components from dust, debris, and external damage. It is mounted on the top of the main frame (102) and can be easily opened for maintenance, inspection, or repair. Further, the top cover locking mechanism (134) is crucial for securing the top cover (130) in place during operation. It prevents the top cover (130) from accident, and ensuring that the operator does not come into contact with the internal components while the system (100) is running. The locking mechanism (134) is intended for ease of use, allowing the cover to be locked or unlocked quickly when necessary.

In an aspect, the front casing knob (138) allows for easy access to the internal components housed within the front casing (136) of the system (100). The front casing knob (138) provides a simple method for securing or releasing the front casing (136), which can be opened for maintenance or inspection. It ensures that the casing remains securely fastened during operation but can be quickly removed when the internal adjustments or repair required. The raw cashew nut outlet (118) located near the bottom of the system (100), the cashew nut outlet (118) serves as the exit point for the separated cashew nuts after the internal expanding gripper (116) has removed them from the cashew apples. Once the nuts are separated, they are channeled through this outlet (118) for collection, making the system (100) efficient in processing cashews and ensuring minimal manual intervention.

Figure 3 illustrates how the main frame (102), motor (104), MCB switch (122), and support leg (120) contribute to form a robust, safe, and stable portable semi-automatic system (100). The main frame (102) supports the motor (104) and other components, the motor (104) generates the necessary rotational power, the MCB switch (122) ensures electrical safety, and the support leg (120) provides essential stability for smooth operation during the separation of cashew nuts from cashew apples.

The main frame (102) as seen in the right-side view of the portable semi-automatic system (100). As discussed above, the main frame (102) is the structural foundation of the system (100). It holds all the critical components in place and provides the necessary rigidity and strength to withstand the operational stresses during the separation process. The main frame (102) is intended to be durable and is often made of steel or other robust materials to ensure longevity and reliability. The structure of the main frame (102) ensures proper alignment and support for components like the motor (104), primary drive shafts (106), secondary drive shaft (114), and pulley (108), maintaining the balance of the system (100) during operation. Further, the motor (104) is one of the most critical components in the system (100). It is mechanically coupled to the primary shaft (106) to generate rotational power, which drives the system (100). The motor, (104) typically an electric motor, converts electrical energy into mechanical energy, initiating the movement required for the separation process. The motor (104) is mounted on the main frame (102), and its alignment with the drive shaft ensures efficient power transmission to the internal expanding gripper mechanism (116).

In an aspect, the miniature circuit breaker (MCB) switch or safety switch (122) is configured for safety purpose of the portable semi-automatic system (100). The safety switch (122) is a vital safety feature of the system (100), which is responsible for protecting the electrical components and operators from overloading, short circuits, or electrical faults. If any such issues occur, the MCB switch (122) automatically cuts off the power supply to prevent damage to the system (100) and ensure operator safety. The MCB switch (122) is positioned conveniently on the side of the system (100), allowing easy access for operators to turn the system on or off and reset it if needed. Further, the support leg (120) provides additional stability and balance to the system (100), especially during operation. The portable semi-automatic system (100) handles mechanical loads and vibrations from the motor (104) and other rotating components, the support legs (120) are designed to evenly distribute the weight and prevent the system (100) from shifting or tipping during use. The support leg (120) also helps elevate the system (100) to an optimal height for operation and provides clearance for the cashew nut outlet at the bottom. It ensures that the system (100) remains securely positioned on the ground or platform during the cashew nut separation process.

Figure 4 depicts a top view of the portable semi-automatic system (100) along with interconnection and positioning of critical components such as the primary shaft (106), pulley (108), belt drive (110), internal expanding gripper (116), raw cashew nut outlet (118), support leg (120), variable frequency drive (128), and top cover hinges (140) plays a vital role in the system's functionality, enabling the efficient separation of cashew nuts from cashew apples.

In an aspect, the primary shaft (106) is clearly visible as one of the central components responsible for power transmission. The primary shaft (106) is mechanically coupled to the motor (104) and is the initial point of rotational power generation. It rotates in alignment with the motor's output and transfers this rotational energy to other components, specifically the pulley (108) and belt drive (110), driving the separation process. The position and alignment of the primary shaft (106) are crucial to ensure smooth power flow and operation. The pulley (108) mounted on the primary shaft (106). The pulley (108) is a key component of the power transmission system. As the primary shaft (106) rotates, it drives the pulley (108), which in turn transmits the rotational power to the belt drive (110). The pulley (108) is responsible for ensuring a smooth and effective transfer of power from the primary shaft (106) to the secondary shaft (114), which drives the internal expanding gripper (116). Further, the belt drive (110) connects the pulley (108) to the secondary shaft (114). This belt drive (110) is responsible for transmitting the rotational power from the primary shaft (106) via the pulley (108) to the secondary shaft (114). The belt drive (110) ensures that power is transferred efficiently and with minimal loss of energy, allowing the internal expanding gripper (116) to perform its function effectively. Proper tension and alignment of the belt drive (110) are important to avoid slippage and ensure consistent operation.
In an aspect, the internal expanding gripper (116) is responsible for separation of the cashew nuts from the cashew apples. The internal expanding gripper (116) engages with the cashew nuts, securely gripping them. The twisting motion generated by the secondary shaft (114), which is driven by the belt drive (110), enables the gripper (116) to twist and separate the cashew nuts from the cashew apples. The structure of the gripper (116) allows to securely hold the nuts while applying the necessary torque to separate them without damaging the cashew nuts. The raw cashew nut outlet (118) is positioned to eject the cashew nuts after they have been detached from the cashew apples. As the internal expanding gripper (116) twists and removes the nuts, they are ejected through this outlet (118). The support leg (120) provides stability to the entire system (100). These legs (120) positioned to evenly distribute the weight of the system (100), especially during operation when the internal components, such as the motor (104), primary and secondary shafts (106 and 114), and pulley (108), are generating mechanical forces. The support legs (120) prevent vibrations or movement of the system (100), ensuring safety and operational efficiency.

In an aspect, the variable frequency drive (128) controls the speed of the motor (104) allowing precise control of the rotational speed and, consequently, the entire separation process. By adjusting the motor speed, the variable frequency drive (VFD) can optimize the separation process, making it more energy-efficient and adaptable to different types or sizes of cashew nuts. The VFD (128) is strategically located for easy access and control. The variable-frequency drive (128) configured with rating of 200-240V, 50/60 Hz, 4.9A, and frequency range of 0.1-400Hz. The VFD (128) allow for smooth starting and stopping of the motor, eliminating sudden jolts or mechanical stresses on the system. This feature increases equipment longevity by reducing wear and tear and lowering the risk of damage to sensitive components.

In an aspect, the top cover hinges (140) are intended to allow easy access to the internal components of the system (100), such as the motor (104), primary and secondary shafts (106 and 114), and gripper (116), for maintenance, inspection, or cleaning. These hinges (140) enable the top cover to be securely opened and closed, ensuring that the system remains protected during operation while still allowing for easy access when needed.

Figure 5 depicts an isometric view of a portable semi-automatic system (100) including the main frame (102), internal expanding gripper (116), support leg (120), safety switch (122), power switch (124), speed regulator switch (126), a top cover (130), handle of top cover (132), top cover locking mechanism (134), front casing knob (138), in accordance with embodiment of the present disclosure.

As discussed above, the main frame (102) configured to provide the structural support to the system (100), supporting and housing all other components. The main frame (102) provides a rigid, durable foundation, ensuring the system (100) remains stable during operation. Further, the internal expanding gripper (116) positioned at the core of the separation mechanism, the internal expanding gripper (116) is responsible for securely gripping the cashew nuts during operation. The isometric view emphasizes the positioning of the gripper (116) relative to the other components. The internal expanding gripper (116) expands to hold the cashew nuts and applies a controlled twisting motion generated by the secondary shaft (114) to separate the cashew nut from the apple without causing damage.

In an aspect, the support legs (120), visible from the isometric view, provide the system stability and ensure that it remains firmly in place during operation. These legs are strategically positioned to bear the system's weight, balance the load, and absorb any vibrations caused by the mechanical movements of the motor (104). Shaft (106) etc. The support leg (102) intended to keep the system level, ensuring consistent and safe performance.

In an aspect, the safety switch (122) plays a crucial role in ensuring safe operation of the system (100). The safety switch (122) allows the user to quickly shut down the system in case of an emergency or malfunction. The power switch (124) is used to turn the system (100) on and off. The power switch (124) provides easy access to the operator. This switch is essential for controlling the overall power flow to the system (100), allowing the user to start and stop the process as required. Further, the speed regulator switch (126) enables the operator to control the speed of the motor (104), adjusting the rotational speed of the internal components. The regulator switch (122) ensures the users can easily regulate the speed depending on the size and type of cashew nuts being processed. By controlling the speed, the system can be fine-tuned for optimal efficiency and to prevent damage to the nuts.

In an aspect, the top cover (130) serves as a protective shield over the internal working parts of the system (100). The top cover (130), prevents accidental exposure to moving parts during the operation. The cover (130) also helps in maintaining the cleanliness of the system (100), protecting it from dust or debris. The handle of the top cover (132) allows easy lifting and removal of the cover (130) for maintenance or inspection. As discussed in figure 1, the handle (132) ergonomically positioned, enabling users to conveniently open the top cover (130) to access the internal components without strain.

In an aspect, the top cover locking mechanism (134) is a safety feature intended to securely lock the top cover (130) in place during operation. It preventing accidental opening of the top cover (130) while the system (100) is running, thereby it protects the user' hand from exposure to the moving parts underneath. The locking mechanism (134) ensures that the cover remains firmly in place until it is intentionally unlocked for maintenance. The front casing knob (138) allows the user to lock or unlock the front casing (136), providing quick access to the internal parts of the system when required. The casing knob (138) is strategically placed for easy operation. The front casing (136) can be removed or secured using this knob (138), making it convenient for operators to perform inspections or clean the system (100) after use.
Figure 6 depicts different views of a portable semi-automatic cashew apple and nut separation system (100), providing a detailed and comprehensive visual understanding of the system (100) from multiple angles. The views include a top view (A), isometric view (B), front view (C), and side view (D) of the system, each offering unique insights into the arrangement and functioning of its components.

Top View (A): the top view, the layout of the main components of system (100) can be clearly observed from above description. The top view emphasizes the placement of the primary shaft (106), pulley (108), belt drive (110), and the internal expanding gripper (116) in relation to the overall structure. The top view highlights the connection between the motor (104) and the belt drive (110), illustrating how rotational power is transmitted from the motor (104) to the various shafts and components.

Isometric View (B): The isometric view provides a three-dimensional perspective of the system, offering a comprehensive visualization of the system's spatial configuration. In this view, the structural design of the main frame (102), the positioning of the support legs (120), and the overall compactness of the system (100) are visible. This view helps to understand how all the components such as the motor (104), pedestal bearing (112), and grippe (116) are interconnected and aligned within the system (100), providing insight into the practical assembly and functionality of the separation process.

Front View (C): The front view displays the system (100) from the operator's perspective, highlighting the control switches, such as the safety switch (122), power switch (124), and speed regulator switch (126). This view is particularly important for understanding the operational interface of the system. The front casing (136) and the placement of the cashew nut outlet (118) are also clearly visible, showcasing where the nuts exit after separation. The positioning of the top cover (130), which encloses the mechanical components, and the locking mechanism (134) that secures it in place, are also prominent in this view.

Side View (D): The side view provides an additional angle to observe the positioning of the motor (104), pedestal bearing (112), pulley (108), and belt drive (110). This view highlights the vertical alignment of these components and shows how the motor (104) is coupled to the primary shaft (106), transmitting power through the pulley (108) to the secondary shaft (114). The side view also offers a detailed look at the support legs (120), ensuring the system (100) remains stable during operation. The position of the MCB switch or safety switch (122) is clearly seen here, emphasizing its accessibility for emergency shutdown.

Working Mechanism of the Present Invention:

The portable semi-automatic cashew apple and nut separation system (100) operates by utilizing a motor (104) driven mechanism to facilitate the separation process. Initially, cashew apples are fed into the system (100), where the motor (104) generates rotational power, which is transmitted to the primary shaft (106). A pulley (108) mounted on the primary shaft (106) drives a belt (110), which transfers the rotational power to the secondary shaft (114). This power transmission allows the secondary shaft (114) to rotate, and creating a twisting motion in the internal expanding gripper (116) attached to the secondary shaft (114). Further, the internal expanding gripper (116) securely grips the cashew nuts within the cashew apples, and the twisting motion generated by the secondary shaft (114) helps to effectively separate the nuts from the apples. Once the cashew nut separated from cashew apples, the cashew nuts are ejected through the designated outlet (118).

Advantages of the present invention:
1. Auto-Adjustable Fixture: The portable semi-automatic system having feature an auto-adjustable internal expanding gripper, enabling it to accommodate cashew nuts of various sizes, from small to large, without manual intervention.
2. Reduced operator fatigue: The system allows operators to work in a sitting posture, minimizing physical strain and reducing operational fatigue, contributing to improved comfort during prolonged usage.
3. Increased productivity: The semi-automatic operation accelerates the nut separation process, significantly boosting productivity by handling a large volume of nuts in a short time compared to manual methods.
4. Labor cost savings: By reducing the need for manual labor, the system cuts down on labor costs, enabling more efficient allocation of human resources.
5. Enhanced safety: The system includes safety features, such as safety switches and top cover locking mechanisms, which prevent accidents and ensure a safer working environment for operators.
6. Consistent output: The mechanical separation process delivers consistent and reliable results, improving product quality and reducing the risk of errors compared to manual separation.
7. Energy efficiency: The integration of a variable frequency drive (VFD) allows precise control of the motor speed, optimizing energy consumption and minimizing operational costs.
8. Easy maintenance: The structure of the system includes accessible components like the top cover and removable parts, making it easier to inspect, clean, and maintain, thereby extending the machine's lifespan.

Although a preferred embodiment of the invention has been illustrated and described, it will at once be apparent to those skilled in the art that the invention includes advantages and features over and beyond the specific illustrated construction. Accordingly, it is indented that the scope of the invention be limited solely by the scope of the hereinafter appended claims, and not by the forgoing specification, when interpreted in light of the relevant prior art. , Claims:1. A portable semi-automatic system (100) comprising:
a. a main frame (102) configured to facilitate structural support;
b. a motor (104) mechanically coupled to a primary shaft (106) on the main frame (102) to generate rotational power;
c. a pulley (108) mounted on the primary shaft (106) to transmit rotational power to a belt drive (110);
d. a pedestal bearing (112) configured to facilitate smooth and stable rotation of the primary shaft (106);
e. a secondary shaft (114) driven by the rotation of the pulley (108) through the power transmission of the belt drive (110);
f. an internal expanding gripper (116) connected to the secondary drive shaft (114) to engage and securely grip the cashew nuts, and
wherein the secondary shaft (114) facilitates twisting motion for the internal expanding gripper (116) through rotation of the secondary drive shaft (114) to separate the cashew nut from the cashew apples, and eject the cashew nut through an outlet (118).

2. The portable semi-automatic system (100) as claimed in claim 1, wherein the main frame (102) comprises:
i. a safety switch (122) configured to disconnect power of the motor (104) for automatically stopping the operation in situation of overcurrent or short-circuit, ensuring protection of both the system (100) and the operator;
ii. a power switch (124) configured to allow the operator to manually start or stop the operation of the system (100).

3. The portable semi-automatic system (100) as claimed in claim 1, wherein the main frame (102) strategically positioned over a support leg (120) to provide strength and rigidity to withstand the loads and stresses that occur during the operation.

4. The portable semi-automatic system (100) as claimed in claim 1, wherein the motor (104) electrically connected to a speed regulator switch (126) along with a variable frequency drive (128), allowing the operator to adjust the speed of motor (104) according to the load requirements.

5. The portable semi-automatic system (100) as claimed in claim 1, wherein the system (100) enclosed with a top cover (130) equipped with a top cover locking mechanism (134), and a top cover hinges (140), configured to securely lock the top cover (130) and facilitate easy opening and closing of the top cover (130) for convenient access.

6. The portable semi-automatic system (100) as claimed in claim 5, wherein the top cover (130) equipped with a handle (132) to facilitate easy removal and handling of the top cover (130) during maintenance and inspection.

7. The portable semi-automatic system (100) as claimed in claim 1, wherein the system (100) equipped with a front casing (136) and a front casing knob (138) to ensure the operator safety by restricting access to internal moving parts.

8. A method for separating cashew nuts from cashew apples by application of a portable semi-automatic system (100), comprising steps of:
a. feeding cashew apples into the system (100);
b. activating a motor (104) to generate rotational power and transmit it to a primary shaft (106);
c. rotating a pulley (108) mounted on the primary shaft (106) to drive a belt (110);
d. transmitting the rotational power from the belt (110) to a secondary shaft (114) via the pulley (108);
e. receiving the rotational power from the secondary shaft (114), facilitates a twisting motion in an internal expanding gripper (116) to securely grip the cashew nuts;
f. twisting the cashew nuts relative to the cashew apples via the twisting motion of the internal expanding gripper (116) to separate the nuts from the cashew apples, and
g. ejecting the separated cashew nut through an outlet (118).

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