AUTOMATED PENCIL SHARPENING DEVICE

Abstract

An automated pencil sharpening device, comprises a cuboidal housing 101 positioned over a fixed surface, plurality of suction cups 102 for adhering housing 101 over surface, a cavity 103 that is accessed by a user to position multiple pencils, plurality of semi- cylindrical members 104 to receive the pencils, an artificial intelligence based imaging unit 105 for capturing and processing images of the members, a vibration unit 106 for enabling the members to accommodate each of the pencil, a microphone 107 to receive voice command of a user, a pair of sliding units 108 to provide translation to a robotic gripper 109, the robotic gripper 109 to grip the user-specified pencil, plurality of electronic sharpeners to sharpen the point portion of pencil, the sharpeners includes a cylindrical body 110 to accommodate the point portion of the user-specified pencil and installed with a motorized blade 111 for sharpening the pencil.

Specification

Description:FIELD OF THE INVENTION

[0001] The present invention relates to an automated pencil sharpening device that is capable of precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike.

BACKGROUND OF THE INVENTION

[0002] Pencil is widely used in people's life process. The pencil sharpening has a rich history dating back to the early 19th century when the need for efficiently sharpening pencils across with the increasing popularity of graphite pencils. The earliest manual sharpeners consists of simple blades mounted on the handles, requiring manual rotation of the pencil to achieve sharp point. Over time, mechanical advancements led to invention of handheld sharpeners incorporating rotating blade in order to sharpening pencil. Traditional method of pencil sharpening is efforts intensive along with excessive time consumption.

[0003] With the advancement in pencil sharpening, collectively many pencil sharpening equipment's were adapted for sharpening pencils. While these equipment's were more precise and efficient than manual method including advancement such as gripping pencils and accommodating in the sharpener in order to sharpening pencil. But these equipment's are incapable of sharpen various grade of HB graphite pencils as well as fail in monitoring sharpness of lead of the user-specified pencil.

[0004] US2007151113A1 discloses about an invention that includes a pencil sharpener having a hollow container having a sidewall, a closed bottom and a lid, a sharpening element being mounted on the lid, the lid having an opening below the sharpening element such that pencil shavings pass through the opening in the lid and into the hollow container. Although, US'113 providing a means of sharpening pencil. However, the cited invention lacks in monitoring sharpness of lead of the user-specified pencil and if blunt end of the lead is detected accordingly re-sharpen the user-specified pencil.

[0005] CN111907244A discloses about an invention that includes an automatic pencil sharpener system and device. The problems of pencil sharpening danger, difficulty in manual pencil sharpening of children and the like are solved. The device mainly comprise distance sensors, a sensor control circuit board, a power supply circuit board, power motors, pencil sharpening rotating blades, propelling springs and the like. Pencil groove sensors are mainly used when pencils are placed in pencil grooves, after a box cover is closed, the propelling springs automatically propel the pencils into pencil sharpening barrels, and the distance sensors automatically start the power motors mainly when the box cover is closed, so that the pencil sharpening work can be normally carried out, the whole pencil sharpening process is fully automatic, and the problems of danger, difficulty and the like of pencil sharpening of the children are greatly reduced. Although, CN'244 provides automatic pencil sharpening. However, the cited invention lacks in precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike.

[0006] Conventionally, many devices have been developed that are capable of sharpening pencil. However, these are incapable of determining HB graphite grading of the pencils and accordingly sharpening the pencil in an automated manner, also these devices are fail in monitoring sharpness of lead of the user-specified pencil and if blunt end of the lead is detected accordingly re-sharpen the user-specified pencil.

[0007] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a device that is capable of precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike. In addition, the proposed device is also capable of monitoring sharpness of lead of the user-specified pencil and if blunt end of the lead is detected accordingly re-sharpen the user-specified pencil.

OBJECTS OF THE INVENTION

[0008] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0009] An object of the present invention is to develop a device that is capable of precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike.

[0010] Another object of the present invention is to develop a device that is capable of monitoring force applied over the pencil accordingly regulates applied force, thus prevent chances of breaking pencil while sharpening.

[0011] Yet another object of the present invention is to develop a device that is capable of monitoring sharpness of lead of the user-specified pencil and if blunt end of the lead is detected accordingly re-sharpen the user-specified pencil.

[0012] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0013] The present invention relates to an automated pencil sharpening device that is capable of precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike.

[0014] According to an embodiment of the present invention, an automated pencil sharpening device comprises of a cuboidal housing positioned over a fixed surface by means of plurality of suction cups arranged beneath the housing, a cavity is crafted over apex portion of the housing that is accessed by a user to position multiple pencils of various types of HB graphite grading scale, plurality of semi-cylindrical members configured within the housing in a inclined manner to receive the pencils, an artificial intelligence based imaging unit installed within the housing and integrated with a processor for capturing and processing images of the members, based on which a linked with the processor, determines presence of the pencils in the members and accordingly actuates a vibration unit installed with the members to produce vibrations that are transmitted to the members for enabling the members to accommodate each of the pencil, microphone installed over the housing to receive voice command of a user to sharpen a pencil of particular HB graphite grading, based on user input, the actuates an OCR (Optical Character Recognition) module installed within the housing and synced with the imaging unit to determine text written over the pencils in view of determining HB graphite grading of the pencils and accordingly identifies a pencil of the user-specified HB graphite grading, pair of sliding units installed within the housing and each of positioned over top and bottom portion of the housing respectively, the imaging unit determines point portion ad end portion of the user-specified pencil and accordingly actuates the sliding units to provide translation to a robotic gripper configured with each of the sliding units to grip the user-specified pencil in a secured manner.

[0015] According to another embodiment of the present invention, the proposed device further comprises of a force sensor is installed with each of the grippers to monitor force applied by the grippers while inserting the user-specified pencil within the sharpener and in case the monitored force exceeds or recedes a threshold value, the directs the grippers to regulate the applied force, plurality of electronic sharpeners installed within the housing and positioned in proximity to each end of the members, the sharpener includes a cylindrical body to accommodate the point portion of the user-specified pencil and installed with a motorized blade that is actuated by the to rotate around the point portion for sharpening the pencil, a touch sensor is installed within the body to determine presence of the user-specified pencil within the body and accordingly the actuates the blade to sharpen the user-specified pencil, the actuates the grippers to insert the point portion of the user-specified pencil into one of the sharpener followed by actuation of the sharpener to sharpen the point portion, upon sharpening the user-specified pencil, the directs the grippers to position the user-specified pencil out of the housing via the cavity in order to enable the user to access the sharpened user-specified pencil, the by means of the imaging unit monitors sharpness of lead of the user-specified pencil and in case blunt end of the lead is detected, the directs the grippers to insert the user-specified pencil within the body for re-sharpen the user-specified pencil, a battery is associated with the device for powering up electrical and electronically operated components associated with the device.

[0016] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of an automated pencil sharpening device.

DETAILED DESCRIPTION OF THE INVENTION

[0018] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0019] In any embodiment described herein, the open-ended terms "comprising," "comprises," and the like (which are synonymous with "including," "having" and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0020] As used herein, the singular forms "a," "an," and "the" designate both the singular and the plural, unless expressly stated to designate the singular only.

[0021] The present invention relates to an automated pencil sharpening device that is capable of precisely and effectively sharpen various grade of HB graphite pencils, thereby streamline the pencil sharpening process while delivering consistent results and making pencil an essential tool for artists, students, and professional alike. In addition, the proposed device is also capable of monitoring sharpness of lead of the user-specified pencil and if blunt end of the lead is detected, then accordingly re-sharpen the user-specified pencil.

[0022] Referring to Figure 1, an isometric view of an automated pencil sharpening device is illustrated, comprising a cuboidal housing 101 positioned over a fixed surface by means of plurality of suction cups 102 arranged beneath the housing 101, a cavity 103 is crafted over apex portion of the housing 101, plurality of semi-cylindrical members 104 configured within the housing 101, an artificial intelligence based imaging unit 105 installed within the housing 101, a vibration unit 106 installed with the members, a microphone 107 installed over the housing 101, a pair of sliding units 108 installed within the housing 101, a robotic gripper 109 configured with each of the sliding units 108, plurality of electronic sharpeners installed within the housing 101, the sharpener includes a cylindrical body 110 to accommodate the point portion of the user-specified pencil and installed with a motorized blade 111.

[0023] The proposed device includes a cuboidal housing 101 positioned over a fixed surface by means of plurality of suction cups 102 arranged beneath the housing 101. The cuboidal housing 101 herein disclosed is made up of any material selected from but not limited to metallic material alike utilize to position over a fixed surface. Further, plurality of suction cups 102 ranging from 4 to 6 in numbers arranged beneath the housing 101 for affixing the cuboidal housing 101 over fixed surface. The suction cups 102 disclosed herein are generates partial vacuum within the suction cups 102 by squeezing out air from the cups due to a negative pressure is generated inside suction area, herein the atmospheric pressure outside the cups presses down low-pressure area inside the cups to generate suction to adhere the surface and affix the cuboidal housing 101 with the surface thereby accommodating the cuboidal housing 101 over the surface in an appropriate manner. The housing 101 is comprises of a cavity 103 is crafted over apex portion of the housing 101 that is accessed by a user to position multiple pencils of various types of HB graphite grading scale.

[0024] Afterwards, plurality of semi- cylindrical members 104 configured within the housing 101 in an inclined manner to receive the pencils. Besides an artificial intelligence based imaging unit 105 installed within the housing 101 and integrated with a processor for capturing and processing images of the members. The artificial intelligence-based imaging unit 105 is equipped with AI (Artificial Intelligent) protocols encrypted in the microcontroller are used to process and analyses the images captured by the camera enabling it to perform various tasks beyond traditional image capturing. The AI analysis is performed locally on the camera itself and the real-time processing on the camera enables immediate responses and faster decision-making.

[0025] The camera, herein captures images of the plurality of semi- cylindrical members 104 with the help of specialized lenses designed to capture high-quality visuals. The captured data is now pre-processed via the processor to enhance its quality and prepare it for AI analysis. This pre-processing involves tasks such as noise reduction, image stabilization, or color correction. The processed data is fed into AI protocols for analysis which utilizes machine learning techniques, such as deep learning neural networks, to extract meaningful information present in the images. Based on extraction of the data from the captured images, the microcontroller determines presence of the pencils in the members. Upon determined presence of the pencils in the members, the microcontroller actuates a vibration unit 106 installed with the members to produce vibrations for enabling the members to accommodate each of the pencil.

[0026] The vibration unit 106 installed with the members to produce vibrations that are transmitted to the members for enabling the members to accommodate each of the pencil. The vibration unit 106 herein disclosed is operates by utilizing an electric motor to providing a vibrating movement to the members. Upon actuation of the vibration unit 106 by the microcontroller, the motor imparts a back-and-forth motion to the members causing the members vibrates. The vibration within the members that enables the mixture to accommodate each of the pencil in successful manner.

[0027] Upon accommodating pencils in the member the microcontroller actuates a microphone 107 installed over the housing 101 to receive voice command of a user to sharpen a pencil of particular HB graphite grading. The microphone 107 receives sound waves generated by energy emitted from the voice command in the form of vibrations. After then, the sound waves are transmitted towards a diaphragm configured with a coil. Upon transmitting the waves within the diaphragm, the diaphragm strikes with the waves due to which the coil starts moving the diaphragm with a back-and-forth movement in presence of magnetic field generated from the coil. After that the electric signal is emitted from the coil due to back-and-forth movement of the diaphragm which is further transmitted to a microcontroller linked with the microphone 107 to process the signal to analyze the signal for detecting voice command given by the user regarding sharpen a pencil of particular HB graphite grading. Based on user input, the microcontroller actuates an OCR (Optical Character Recognition) module installed within the housing 101 for determining text written over the pencils.

[0028] The OCR (Optical Character Recognition) module installed within the housing 101 and synced with the imaging unit 105 for determining text written over the pencils in view of determining HB graphite grading of the pencils and accordingly identifies a pencil of the user-specified HB graphite grading. The OCR (Optical Character Recognition) module herein disclosed is functions by analysing multiple images of the pencil captured by the imaging unit 105.

[0029] The captures images containing text, identifying characters, and converting them into readable-text. Besides the pencil grading consist of letters and numbers which indicating the pencil's hardness. Furthermore, the OCR (Optical Character Recognition) module identifying these alphanumerical characters present over the pencil and once the characters are recognized, the OCR module interpret them and converting them into readable text, that further processed by the microcontroller in view of determining HB graphite grading of the pencils and accordingly identifies a pencil of the user-specified HB graphite grading.

[0030] Moreover, a pair of sliding units 108 installed within the housing 101 and each of positioned over top and bottom portion of the housing 101 respectively. The microcontroller by means of the imaging unit 105 determines point portion ad end portion of the user-specified pencil and accordingly actuates the sliding units 108 to provide translation to a robotic gripper 109 configured with each of the sliding units 108 to grip the user-specified pencil in a secured manner.

[0031] The sliding units 108, herein discloses consists of a rail unit that provides a guided path for linear movement. The rail unit usually includes a pair of parallel rails or tracks, along which the sliding units 108 moves. The sliding unit carriage, also called a stage or platform equipped with a mechanism to minimize friction and ensure smooth motion. This involves the use of ball bearings. The sliding units 108 incorporates a motor and a drive mechanism to generate linear motion. The motor is connected to a drive mechanism, such as a belt, lead screw, or ball screw. The drive mechanism converts the rotational motion of the motor into linear motion, propelling the slider carriage along the rail unit to translate robotic gripper 109 configured with each of the sliding units 108.

[0032] Afterwards, a force sensor is installed with each of the gripper 109 to monitor force applied by the gripper 109 while inserting the user-specified pencil within the sharpener. The force sensor includes a transducer, such that when the user accommodates on the platform, then force is exerted by the gripper 109 on the user-specified pencil. The exerted force causes deflection within a diaphragm inside the transducer.

[0033] The deflection is monitored by the transducer and is further converted into an electric signal that is received by the microcontroller. The microcontroller processes the received force and monitors the force applied by the gripper 109 while inserting the user-specified pencil within the sharpener. In case the monitored force exceeds or recedes a threshold value, the microcontroller directs the gripper 109 to regulate the applied force.

[0034] In synchronization, the robotic gripper 109 actuates by the microcontroller that consists of link connected with motorized ball and socket joints and a gripper 109 for smooth and precise gripping of user-specified pencil. The motorized ball and socket joint includes a motor powered by the microcontroller generating electrical current, a ball shaped element and a socket. The ball move freely within the socket. The motor rotates the ball in various directions that is controlled by the microcontroller that further commands the motor to position the ball precisely. The microcontroller further actuates the motor to generate electrical current to rotate in the joint for providing movement to the gripper 109 for gripping user-specified pencil in a secured manner and simultaneously insert the point portion of the user-specified pencil into one of the electronic sharpeners installed within the housing 101.

[0035] Upon gripping and positioning point portion of the user-specified pencil into one of the sharpener, followed by activation of the plurality of electronic sharpeners installed within the housing 101 and positioned in proximity to each end of the members to sharpen the point portion, herein sharpener includes a cylindrical body 110 to accommodate the point portion of the user-specified pencil and installed with a motorized blade 111 that is actuated by the microcontroller to rotate around the point portion for sharpening the pencil.

[0036] Herein, a touch sensor is installed within the body to determine presence of the user-specified pencil within the body. The touch sensor comprises a sensing element known as elastomer for sensing the interaction of the user-specified pencil within the body. When the sensor is subjected to the interaction, the sensor gets activated and behave like a switch. When the interaction is released, the touch sensor acts as closed switch to experience the force exerted by the by the user-specified pencil. This force leads to deflection in the elastomer which is measured and converted into an electrical signal. After that the touch sensor transmits the electric signal to the microcontroller linked with the sensor. The microcontroller now analyzes the signal to detect the presence of the user-specified pencil within the body and accordingly the microcontroller actuates the blade 111 to sharpen the user-specified pencil.

[0037] Consequently, the motorized blade 111 consists of a motor connected to a set of blade 111s for sharpening the pencil. The motor is the key component that converts electrical energy into mechanical energy to provide rotational movement to the blade 111. Upon actuation of the motorized blade 111 by the microcontroller, the motor starts rotating the blade 111 in a clockwise/ anti-clockwise direction by imparting the rotational motion to the blade 111 around the point portion in order to sharpening the pencil.

[0038] Upon sharpening the user-specified pencil, the microcontroller directs the gripper 109 to position the user-specified pencil out of the housing 101 via the cavity 103 in order to enable the user to access the sharpened user-specified pencil. The gripper 109 includes a link connected with multiple motorized ball and socket joints and a gripper 109 for smooth and precisely gripping of user-specified pencil and out from the housing 101.

[0039] The motorized ball and socket joint includes a motor powered by the microcontroller generating electrical current, a ball shaped element and a socket. The ball move freely within the socket. The motor rotates the ball in various directions that is controlled by the microcontroller that further commands the motor to position the ball precisely. The microcontroller further actuates the motor to generate electrical current to rotate in the joint for providing movement to the gripper 109 to position the user-specified pencil out of the housing 101 in order to enable the user to access the sharpened user-specified pencil.

[0040] Moreover, the microcontroller by means of the imaging unit 105 monitors sharpness of lead of the user-specified pencil. The imaging unit 105, herein captures images of the user-specified pencil with the help of specialized lenses designed to capture high-quality visuals. The captured data is now pre-processed via the processor to enhance its quality and prepare it for AI analysis. This pre-processing involves tasks such as noise reduction, image stabilization, or color correction. The processed data is fed into AI protocols for analysis which utilizes machine learning techniques, such as deep learning neural networks, to extract meaningful information present in the images. Based on extraction of the data from the captured images, the microcontroller monitors sharpness of lead of the user-specified pencil. And in case blunt end of the lead is detected, the microcontroller directs the gripper 109 to insert the user-specified pencil within the body for re-sharpen the user-specified pencil.

[0041] Lastly, a battery (not shown in figure) is associated with the device to offer power to all electrical and electronic components necessary for their correct operation. The battery is linked to the microcontroller and provides (DC) Direct Current to the microcontroller. And then, based on the order of operations, the microcontroller sends that current to those specific electrical or electronic components so they effectively carry out their appropriate functions.

[0042] The proposed device works best in the following manner, where the cuboidal housing 101 as disclosed in the present invention is positioned over the fixed surface by means of the plurality of suction cups 102 adheres the housing 101 over ground surface, herein the cavity 103 is accessed by the user to position multiple pencils of various types of HB graphite grading scale. Further, the plurality of semi- cylindrical members 104 receives the pencils. Afterwards, the artificial intelligence based imaging unit 105 captures and processes images of the members. Based on which the microcontroller linked with the processor, determines presence of the pencils in the members and accordingly actuates the vibration unit 106 that produces vibrations that are transmitted to the members receives voice command of the user to sharpen the pencil of particular HB graphite grading.

[0043] In continuation, the microcontroller actuates the OCR (Optical Character Recognition) module that determines text written over the pencils in view of determining HB graphite grading of the pencils and accordingly identifies the pencil of the user-specified HB graphite grading. Furthermore, the pair of sliding units 108 provides translation to the robotic gripper 109 for gripping the user-specified pencil in a secured manner. Afterwards, the force sensor monitors force applied by the gripper 109 while inserting the user-specified pencil within the sharpener and in case the monitored force exceeds or recedes a threshold value, the microcontroller directs the gripper 109 to regulate the applied force. Consequently, the microcontroller actuates the gripper 109 to insert the point portion of the user-specified pencil into one of the sharpener. Further, the touch sensor determines presence of the user-specified pencil within the body and accordingly the microcontroller actuates the blade 111 to sharpen the user-specified pencil. Followed by actuation of the plurality of electronic sharpener to sharpen the point portion. Upon sharpening the user-specified pencil, the microcontroller directs the gripper 109 to position the user-specified pencil out of the housing 101 via the cavity 103 in order to enable the user to access the sharpened user-specified pencil. Moreover, the microcontroller by means of the imaging unit 105 monitors sharpness of lead of the user-specified pencil. And in case blunt end of the lead is detected, the microcontroller directs the grippers 109 to insert the user-specified pencil within the body for re-sharpen the user-specified pencil.

[0044] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , Claims:1) An automated pencil sharpening device, comprising:

i) a cuboidal housing 101 positioned over a fixed surface by means of plurality of suction cups 102 arranged beneath said housing 101, wherein a cavity 103 is crafted over apex portion of said housing 101 that is accessed by a user to position multiple pencils of various types of HB graphite grading scale;
ii) plurality of semi- cylindrical members 104 configured within said housing 101 in a inclined manner to receive said pencils, wherein an artificial intelligence based imaging unit 105 installed within said housing 101 and integrated with a processor for capturing and processing images of said members, based on which a microcontroller linked with said processor, determines presence of said pencils in said members and accordingly actuates a vibration unit 106 installed with said members to produce vibrations that are transmitted to said members for enabling said members to accommodate each of said pencil;
iii) a microphone 107 installed over said housing 101 to receive voice command of a user to sharpen a pencil of particular HB graphite grading, wherein based on user input, said microcontroller actuates an OCR (Optical Character Recognition) module installed within said housing 101 and synced with said imaging unit 105 to determine text written over said pencils in view of determining HB graphite grading of said pencils and accordingly identifies a pencil of said user-specified HB graphite grading;
iv) a pair of sliding units 108 installed within said housing 101 and each of positioned over top and bottom portion of said housing 101 respectively, wherein said microcontroller by means of said imaging unit 105 determines point portion ad end portion of said user-specified pencil and accordingly actuates said sliding units 108 to provide translation to a robotic gripper 109 configured with each of said sliding units 108 to grip said user-specified pencil in a secured manner; and
v) plurality of electronic sharpeners installed within said housing 101 and positioned in proximity to each end of said members, wherein said microcontroller actuates said gripper 109 to insert said point portion of said user-specified pencil into one of said sharpener followed by actuation of said sharpener to sharpen said point portion.

2) The device as claimed in claim 1, wherein upon sharpening said user-specified pencil, said microcontroller directs said gripper 109 to position said user-specified pencil out of said housing 101 via said cavity 103 in order to enable said user to access said sharpened user-specified pencil.

3) The device as claimed in claim 1, wherein said sharpener includes a cylindrical body 110 to accommodate said point portion of said user-specified pencil and installed with a motorized blade 111 that is actuated by said microcontroller to rotate around said point portion for sharpening said pencil.

4) The device as claimed in claim 1 and 3, wherein a touch sensor is installed within said body to determine presence of said user-specified pencil within said body and accordingly said microcontroller actuates said blade 111 to sharpen said user-specified pencil.

5) The device as claimed in claim 1, wherein a force sensor is installed with each of said gripper 109 to monitor force applied by said gripper 109 while inserting said user-specified pencil within said sharpener and in case said monitored force exceeds or recedes a threshold value, said microcontroller directs said gripper 109 to regulate said applied force.

6) The device as claimed in claim 1 and 3, wherein said microcontroller by means of said imaging unit 105 monitors sharpness of lead of said user-specified pencil and in case blunt end of said lead is detected, said microcontroller directs said gripper 109 to insert said user-specified pencil within said body for re-sharpen said user-specified pencil.

7) The device as claimed in claim 1, wherein a battery is associated with said device for powering up electrical and electronically operated components associated with said device.

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