CN210413992U

CN210413992U - Vertical automatic sander

Info

Publication number: CN210413992U
Application number: CN201921331171.7U
Authority: CN
Inventors: 陈丕立; 梁绍明; 梁伟军; 王勇杰; 梁为栋; 梁国亮; 欧达华; 余敬源; 陈育贵; 叶灿雄
Original assignee: Guangdong Lingfeng Hardware Equipment Technology Co ltd
Current assignee: Guangdong Lingfeng Hardware Equipment Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-28
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a vertical automatic sander, which comprises a base, a horizontal motion component arranged on the base, a rotary die for tightly sucking a pot through negative pressure and driving the pot to rotate, a stand column fixed on the base, a vertical motion component arranged on the stand column, and a double-head abrasive belt component with an automatic quantitative abrasive belt feeding function; an electric box is arranged on the upright post, and the electric box is respectively connected with and supplies power to the horizontal movement assembly, the rotary die, the vertical movement assembly and the double-head abrasive belt assembly; the rotary die is installed on the horizontal movement assembly and moves along the horizontal direction of the horizontal movement assembly, the double-head abrasive belt assembly is installed on the vertical movement assembly and goes up and down along the vertical direction of the vertical movement assembly, and the double-head abrasive belt assembly is provided with a polishing tool bit for polishing the inner wall and the outer bottom of the pot. The device replaces a manual sanding mode, reduces the labor intensity of workers and guarantees the personal safety; the processed cookware has clear and uniform surface texture and high consistency, and the stability of product quality is improved.

Description

Vertical automatic sander

Technical Field

The utility model relates to a be used for sand light equipment technical field, especially relate to a vertical automatic sander that abrasive band ration was fed.

Background

In order to obtain a smooth surface appearance or a wire drawing effect, the surface of the metal pot needs to be sanded to remove an oxide layer. In the manual production mode of tradition, the workman places the pan in corresponding mould, utilizes the negative pressure to inhale the pot tightly, makes the pan drive high-speed rotation by the motor, then the workman holds abrasive paper on one hand and holds the compression roller on the other hand, presses abrasive paper with appropriate dynamics and polishes the pan, and pan surface quality relies on experience control entirely, and it is high to workman's operand measurement requirement, and the finished product quality differs. The noise is high during polishing, dust flies, and workers are easy to suffer from occupational diseases such as tinnitus, pneumoconiosis and the like. The attention is concentrated for a long time, the mental fatigue of workers is easy to generate, the fatigue feeling is geometrically increased along with the working time, the concentration of the attention of workers is lower, and a small nerve can generate unfortunate safety accidents.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art and providing a vertical automatic sander.

The utility model discloses a realize through following technical scheme: the vertical automatic sander comprises a base, a horizontal motion assembly, a rotary die, a stand column, a vertical motion assembly and a double-head abrasive belt assembly, wherein the horizontal motion assembly is installed on the base; an electric box is arranged on the upright post, and the electric box is respectively connected with the horizontal movement component, the rotary die, the vertical movement component and the double-head abrasive belt component and supplies power to the horizontal movement component, the rotary die, the vertical movement component and the double-head abrasive belt component; the double-head abrasive belt component is provided with a grinding cutter head used for grinding the inner wall and the outer bottom of the cooker, and the grinding cutter head rubs an abrasive belt to grind the cooker.

The horizontal motion assembly can drive the rotary die to move in the horizontal direction and synchronously synthesize a plane curve track with the vertical motion assembly, and the cookware is tightly sucked on the rotary die under the action of negative pressure to drive the rotary die to rotate at high speed, so that the whole rotary surface of the cookware can be polished; the vertical motion component drives the double-head abrasive belt component to move up and down in the vertical direction; the double-end abrasive belt component can realize automatic quantitative feeding of the abrasive belt, and the utilization rate of the abrasive belt is improved to the maximum extent.

The rotary die comprises a three-phase motor controlled by a frequency converter, a rotary die support, an airtight main shaft, a triangular belt, a belt cover, a die flange, a die head and a first belt pulley; an airtight structure with a main shaft rotating but a pipeline not rotating is formed in the airtight main shaft through a mechanical sealing element, and the airtight main shaft is provided with a second belt pulley; the airtight main shaft is installed on the rotary die support, the three-phase motor is fixed on the rotary die support, the first belt pulley is installed on a rotating shaft of the three-phase motor, and the first belt pulley and the second belt pulley are connected through the triangular belt to realize linkage; the die head is arranged on the airtight main shaft through the die flange, and the top of the die head is provided with a negative pressure port communicated with the airtight structure of the airtight main shaft; a sealing ring is embedded in a groove in the top of the die head; after the cookware is placed into the die head, the airtight main shaft transmits negative pressure to suck the cookware tightly, and the three-phase motor drives the airtight main shaft to rotate through the first belt pulley and the triangular belt, so that the cookware is driven to rotate. The three-phase motor rotates, the first belt pulley is linked with the second belt pulley through the triangular belt to drive the airtight main shaft to rotate, the rotating speed of the airtight main shaft is adjusted according to different cookers to achieve the required cutting linear speed, and the surface texture effect of the cookers is directly influenced; the airtight main shaft supports high-speed rotation, an airtight structure is formed in the airtight main shaft through a mechanical sealing piece, the main shaft rotates, a pipeline does not rotate, and the problem of pipeline winding is solved; due to the arrangement of the sealing ring and the negative pressure port, the cooker is sleeved in the die head and then is sucked tightly through suction force generated by external negative pressure, and the grinding process is firmly adsorbed on the die head.

The horizontal motion assembly comprises a motion assembly base, a horizontal sliding block, a first linear rail, a guide rail base, a limiting block, a dust cover, a first servo motor, a planetary reducer, a gear, a rack, a reducer mounting plate and a first limit sensor; the gear and the guide rail seat are arranged on the motion assembly base, the first linear rail is arranged on the guide rail seat, and the speed reducer mounting plate is connected to the first linear rail through the horizontal sliding block and can slide along the first linear rail; the planetary reducer is arranged on the rotating shaft of the first servo motor, the gear is arranged at the output end of the planetary reducer, and the gear is meshed with the rack; the dustproof covers are respectively installed at two ends of the speed reducer installation plate, the first limit sensor and the limiting block are respectively installed at two ends of the motion assembly base, and the first limit sensor is in signal connection with the first servo motor; the dust cover, the first servo motor, the planetary reducer and the reducer mounting plate form a movable part, and the movable part slides on a first line rail between the two limiting blocks; the rotary die support is installed on the speed reducer mounting plate, and the first servo motor is located in the rotary die support. The first servo motor is matched with the planetary reducer for use and serves as a horizontal motion power source, and the horizontal motion power source has the characteristics of high speed and high precision and ensures the accuracy of synthetic motion and the high-speed performance of the whole machine; the gear is matched with the rack to convert the rotary motion of the first servo motor into linear motion, and the first servo motor, the planetary reducer and the gear form a whole body to move horizontally; and the first linear rail is matched with the horizontal sliding block to be used as a guide and a support for horizontal movement.

The vertical motion assembly comprises a ball screw support seat, a vertical movable plate, a vertical sliding block, a circular rail, a second limit sensor, a dustproof sleeve, an optical axis support, a second servo motor, a servo motor seat, a coupler, a ball screw and a vertical movable assembly support; the vertical movable component supports are fixed on the upright posts, two circular rails are arranged and are respectively positioned at two ends of the vertical movable component supports, two ends of each circular rail are installed on the vertical movable component supports through the optical axis supports, and the vertical movable plate is installed on the circular rails through the vertical sliding blocks and can slide up and down along the circular rails; the second servo motor is installed on the vertical movable assembly support through a servo motor seat, one end of the ball screw is supported by the screw support seat, the other end of the ball screw is located in the servo motor seat and is connected with the second servo motor through the coupler, the ball screw is sleeved with a screw nut, the vertical movable plate is installed on the screw nut, and the second servo motor rotates to drive the ball screw to rotate, so that the screw nut moves linearly up and down, and the vertical movable plate is driven to move up and down; the double-end abrasive belt assembly is mounted on the vertical movable plate; the upper part and the lower part of the vertical movable assembly support are respectively provided with the second limit sensors, the second limit sensors are in signal connection with the second servo motor, and the vertical movable plate slides up and down between the two second limit sensors; the dustproof sleeve is sleeved at the joint of the circular rail and the ball screw rod. The second servo motor is used as a power source for vertical motion, has the characteristics of high speed and high precision, and ensures the accuracy of the synthetic motion and the high-speed performance of the whole machine; the ball screw is connected with the second servo motor through the coupler, the rotary motion of the motor is converted into linear motion, the ball screw has the characteristic of ultrahigh precision, the accuracy of the resultant motion is ensured, and the weight of the whole set of double-head abrasive belt assembly and the pressure in the vertical direction in the polishing process are borne; the circular rail and the vertical sliding block are used for guiding and supporting vertical movement, so that transverse force is prevented from directly acting on the ball screw, the high-precision low-damping characteristic of the ball screw is achieved, the smooth movement is guaranteed, and the movement resistance is reduced.

The double-end abrasive belt component comprises a fixed plate and two sets of abrasive belt winding and unwinding devices arranged on the fixed plate, wherein the two sets of abrasive belt winding and unwinding devices have the same structure and are symmetrically arranged on the fixed plate; the abrasive belt winding and unwinding device comprises a winding disc, a guide wheel, a winding disc, a tensioning device, a winding and unwinding pressing device, an abrasive belt, a cutter arm, a grinding cutter head, an abrasive belt quantitative feeding device and a buffering device;

the unwinding disc is used for placing an unused abrasive belt;

the abrasive belt quantitative feeding device is arranged beside the reel disc and is used for providing abrasive belt feeding power and quantitatively controlling abrasive belt feeding amount, and the abrasive belt quantitative feeding device is provided with a feeding rubber wheel;

the unwinding pressing device is arranged beside the abrasive belt quantitative feeding device and is provided with an unwinding pressing wheel, the abrasive belt is pressed on the feeding rubber wheel by the unwinding pressing wheel, unwinding friction force is generated to quantitatively pull out the abrasive belt, and the tension force of the abrasive belt is provided after the abrasive belt is fed;

the grinding cutter head is arranged on the cutter arm, an abrasive belt from the unreeling pressing wheel is wound from one side of the cutter arm and then is tightly attached to the grinding cutter head, the grinding cutter head presses the surface of the cooker, and the grinding cutter head rubs the abrasive belt to grind the cooker; an abrasive belt coming out of the grinding cutter head passes by the other side of the cutter arm and then enters the tensioning device;

the tensioning device is connected with the grinding cutter head through an abrasive belt and used for providing tensioning force for the abrasive belt coming out of the grinding cutter head;

the winding disc is used for switching the working surface of the abrasive belt which is released from the tensioning device and is loose, tensioning the abrasive belt and automatically winding the abrasive belt, and the winding disc is provided with a winding motor;

the tensioning device is provided with a tensioning sensor for controlling the on-off state of the winding motor; the guide wheel is arranged between any two adjacent components according to requirements and used for controlling the trend of the abrasive belt.

The unreeling pressing wheel can press the abrasive belt on the feeding rubber wheel to generate unreeling friction force to quantitatively pull out the abrasive belt, the abrasive belt can be loosened during replacement, the replacement is convenient, and the tension of the abrasive belt can be provided after the abrasive belt is fed; the abrasive band pastes tight tool bit of polishing and compresses tightly the pan surface when polishing to can polish the pan.

The unwinding disc is arranged on the fixed plate, and a damping sheet capable of preventing the unwinding disc from moving randomly due to inertia in the abrasive belt feeding process is arranged at the mounting position; the abrasive belt quantitative feeding device comprises an unwinding motor, an unwinding speed reducer, a first speed reducer base plate, a first bearing block, an abrasive belt feeding shaft and a first gasket; the unwinding speed reducer is connected with the unwinding motor, the unwinding speed reducer is mounted on the first bearing block through the first speed reducer base plate, and the first bearing block is fixed on the fixing plate; the unwinding speed reducer is connected with the feeding rubber wheel through the abrasive belt feeding shaft, and the first gasket is arranged between the feeding rubber wheel and the first bearing seat; the unreeling motor is a single-phase speed regulating motor which controls the feeding amount of the abrasive belt through the power-on time of the motor; the unwinding speed reducer is a worm and gear speed reducer with a self-locking characteristic, and after the unwinding motor is electrified, the unwinding speed reducer drives the feeding rubber wheel to rotate, so that the automatic feeding of the abrasive belt is realized. The worm gear speed reducer with the self-locking characteristic can prevent the abrasive belt unwinding motor from loosening after power failure; when a feeding command is received, the unreeling motor is electrified and rotated, the abrasive belt is pulled out of the unreeling disc by means of friction force generated by cooperation of the unreeling pressing wheel, the abrasive belt is powered off after a preset time is reached, and the abrasive belt is stopped at the current position. The feeding rubber wheel is independent of the reel, so that the feeding amount is not influenced by the diameter of the abrasive belt coil; due to the adoption of the active unreeling mode, the coarse sand belt can be smoothly fed.

The unreeling and pressing device comprises a cylinder bottom plate, a cylinder, a sliding valve connected with the cylinder, a pressing wheel shaft, a second linear rail, a sliding block and a pressing support seat, wherein the sliding block is arranged on the second linear rail and slides along the second linear rail; the second line rail is fixed on the cylinder bottom plate, one end of the cylinder is fixed on the cylinder bottom plate, and the other end of the cylinder is connected with the pressing support seat; the unreeling pinch roller is fixed on the pressing support seat through the pinch roller shaft, and the pressing support seat is arranged on the sliding block; the unreeling pressing wheel presses the abrasive belt on the feeding rubber wheel or is far away from the feeding rubber wheel along the direction of the second line rail along with the expansion and contraction of the cylinder so as to loosen the abrasive belt; four rollers are arranged on two sides of the cutter arm, namely a first roller, a second roller, a third roller and a fourth roller, wherein the first roller and the second roller are positioned on one side of the cutter arm, and the third roller and the fourth roller are positioned on the other side of the cutter arm; the polishing tool bit is made of hard silica gel and is cut into a shape of a turning angle of a pot, and the polishing tool bit is attached to the surface of the pot; the abrasive belt conveyed by the feeding rubber wheel sequentially bypasses the inner side of the first roller, the outer side of the second roller, the grinding cutter head, the outer side of the third roller and the inner side of the fourth roller and then extends to the tensioning device. Unreel the pinch roller through cylinder control, unreel the pinch roller and compress tightly the abrasive band on feeding the rubber tyer along second line rail direction, compress tightly the abrasive band cooperation and unreel the motor and tear the abrasive band ration out when unreeling, when changing the abrasive band, manual control slide valve makes the cylinder withdrawal, makes the pinch roller keep away from feeding the rubber tyer, conveniently changes the abrasive band. The knife arm can extend into the inner wall of the pot for polishing, and plays a role in guiding and supporting the abrasive belt.

The tensioning device comprises a tensioning spring, a guide post, a tensioning wheel mounting block, a tensioning wheel mounted on the tensioning wheel mounting block, a tensioning sensor seat, a linear bearing mounting seat and a linear bearing mounted on the linear bearing mounting seat; the tensioning wheel mounting block is fixed on one end of the guide post, and the other end of the guide post is mounted in the linear bearing and can slide back and forth along the linear bearing; the tensioning spring is sleeved on the periphery of the guide post, one end of the tensioning spring abuts against the tensioning wheel mounting block, and the other end of the tensioning spring abuts against the linear bearing mounting seat; the tensioning sensor is arranged on the linear bearing mounting seat through the tensioning sensor seat. When the abrasive belt is tightened, the tensioning spring is in a compressed state, the tensioning wheel generates a tensioning force on the abrasive belt, the abrasive belt is loose after being fed, the tensioning spring extends to enable the redundant abrasive belt at the grinding cutter head to automatically move towards the direction of the winding disc, the winding disc is convenient to wind, a tensioning sensor of the tensioning device controls the on-off of the winding motor through signals, the abrasive belt keeps unchanged after the winding motor is powered off, and the tensioning spring is used for providing the tensioning force of the whole abrasive belt; the tension sensor is used for detecting the tension state of the tension wheel.

The winding disc comprises a winding speed reducer, a second speed reducer base plate, a second bearing seat, a second gasket, an abrasive belt winding shaft and a butterfly nut; the winding speed reducer is connected with the winding motor, the winding speed reducer is mounted on the second bearing block through the second speed reducer base plate, and the second bearing block is fixed on the fixing plate; the winding speed reducer is connected with the winding disc through the abrasive belt winding shaft, the second gasket is arranged between the winding disc and the second bearing seat, and the butterfly nut is screwed on the abrasive belt winding shaft and tightly presses or loosens the winding disc; the winding motor is a single-phase speed regulating motor, and the winding speed reducer is a worm and gear speed reducer with a self-locking characteristic.

A buffer device is arranged on the fixing plate and comprises a buffer cylinder and a crank force arm, one end of the crank force arm is arranged on a telescopic rod of the buffer cylinder, and the other end of the crank force arm is connected with the cutter arm; when the buffer cylinder works normally, the buffer cylinder is in an extending state; when the horizontal motion arm generates collision, the buffer cylinder is compressed to adjust and control the working pressure of the polished cutter head. The buffer cylinder can adjust and control the pressure of the sanding tool bit and can also be used for buffer collision protection.

The guide wheel is connected with a guide wheel fixing shaft and is arranged on the fixing plate through the guide wheel fixing shaft.

Compared with the prior art, the utility model has the advantages of: the device replaces a manual sanding mode, and workers only take charge of taking and placing workpieces, so that the labor intensity of the workers is reduced, and the personal safety of the workers is guaranteed; the surface texture of the processed pot is clear and uniform, the consistency is high, the dependence of a sanding process on skilled sanding workers is reduced, and the stability of product quality is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a horizontal movement assembly according to an embodiment of the present invention;

fig. 3 is an exploded view of the horizontal motion assembly according to the embodiment of the present invention;

fig. 4 is a schematic structural view of a rotary mold according to an embodiment of the present invention;

fig. 5 is an exploded view of the rotary mold according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of a vertical motion assembly according to an embodiment of the present invention;

FIG. 7 is a side view of a vertical motion assembly according to an embodiment of the present invention;

FIG. 8 is a side view of a dual-headed abrasive belt assembly according to an embodiment of the present invention;

FIG. 9 is a front view of a dual head belt assembly according to an embodiment of the present invention;

FIG. 10 is a rear view of a dual-headed abrasive belt assembly according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a buffering device and a polishing tool bit according to an embodiment of the present invention;

FIG. 12 is a schematic structural view illustrating a use process of a cushioning device and a sanding head according to an embodiment of the present invention;

fig. 13 is a schematic structural view of the left side polishing tool bit polishing cookware inner wall in the embodiment of the present invention;

FIG. 14 is a schematic structural view of the right side polishing tool bit polishing cookware in the embodiment of the present invention;

fig. 15 is a schematic structural view of the left side grinding cutter head grinding outer bottom of the cookware in the embodiment of the present invention;

fig. 16 is a schematic structural view of the right side grinding cutter head grinding outer bottom of the cookware in the embodiment of the invention;

fig. 17 is a schematic structural view of the unwinding and pressing device according to the embodiment of the present invention;

fig. 18 is a schematic structural view of a tensioning device according to an embodiment of the present invention;

fig. 19 is a schematic structural view of a device for quantitatively feeding an abrasive belt according to an embodiment of the present invention;

fig. 20 is the utility model discloses a structure schematic diagram of rolling dish.

The reference numerals in the drawings mean: 100. a base; 200. a horizontal motion assembly; 300. rotating the mold; 400. an electric box; 500. a dual-headed abrasive belt assembly; 600. a vertical motion assembly; 700. a column; 201. a horizontal slider; 202. a first wire track; 203. a guide rail seat; 204. a limiting block; 205. a dust cover; 206. a first servo motor; 207. a planetary reducer; 208. a gear; 209. a rack; 210. a first limit sensor; 301. rotating the mold support; 302. an airtight main shaft; 303. a V-belt; 304. a belt cover; 305. a mold flange; 306. a die head; 307. a pot; 308. a first pulley; 309. a three-phase motor; 310. a second pulley; 501. a winding disc; 502. a guide wheel; 503. placing the reel; 504. a tensioning device; 505. unreeling a pinch roller; 506. an abrasive belt; 507. a cutter arm; 508. polishing the cutter head; 509. a winding motor; 510. an unwinding motor; 511. a buffer device; 5111. a buffer cylinder; 5112. a crank moment arm; 512. a sand belt quantitative feeding device; 5011. a rolling speed reducer; 5012. a second reducer backing plate; 5013. a second bearing housing; 5014. a second gasket; 5015. an abrasive belt winding shaft; 5016. a butterfly nut; 5121. a first gasket; 5122. unwinding a speed reducer; 5123. a first reducer backing plate; 5124. a first bearing housing; 5125. feeding a rubber wheel; 5126. a belt feed shaft; 601. a ball screw supporting seat; 602. a vertical movable plate; 603. a circular rail; 604. a second limit sensor; 605. a dust-proof sleeve; 606. an optical axis support; 607. a second servo motor; 608. a servo motor base; 609. a coupling; 610. a ball screw; 611. a vertically movable assembly support; 801. a linear bearing mount; 802. a linear bearing; 803. a tension sensor; 804. a tension wheel; 805. a guide post; 806. tensioning the spring; 807. a tension wheel mounting block; 808. a tension sensor seat; 901. a second wire track; 902. a slider; 903. pressing the supporting seat; 904. a slide valve; 905. a cylinder; 906. a cylinder bottom plate; 907. the wheel axle is pressed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Examples

Referring to fig. 1 to 20, a vertical automatic sander comprises a base 100, a horizontal motion assembly 200 installed on the base 100, a rotary mold 300 sucking a pot 307 by negative pressure and driving it to rotate, a vertical column 700 fixed on the base 100, a vertical motion assembly 600 installed on the vertical column 700, and a double-head sanding belt assembly 500 having a function of automatically and quantitatively feeding a sanding belt 506; an electric box 400 is arranged on the upright column 700, and the electric box 400 is respectively connected with and supplies power to the horizontal motion assembly 200, the rotary mold 300, the vertical motion assembly 600 and the double-head abrasive belt assembly 500; the rotary mold 300 is installed on the horizontal motion assembly 200 and moves in the horizontal direction thereof, the double-headed belt assembly 500 is installed on the vertical motion assembly 600 and ascends and descends in the vertical direction thereof, the double-headed belt assembly 500 is provided with a grinding bit 508 for grinding the inner wall and the outer bottom of the pot 307, and the grinding bit 508 rubs the belt 506 to grind the pot 307.

The horizontal motion assembly 200 can drive the rotary mold 300 to move in the horizontal direction, and synchronously synthesize a plane curve track with the vertical motion assembly 600, the pan 307 is tightly sucked on the rotary mold 300 under the action of negative pressure to drive the rotary mold to rotate at high speed, so that the whole rotary surface of the rotary mold can be polished; the vertical motion assembly 600 drives the double-head abrasive belt assembly 500 to move up and down in the vertical direction; double-ended abrasive belt assembly 500 can realize automatic dosing of abrasive belt 506, maximizing utilization of abrasive belt 506.

Referring to fig. 1, which is a schematic structural view of the apparatus, a base 100 and a column 700 are used to fix all mechanisms and provide a suitable installation position, a rotary mold 300 is installed on a horizontal movable assembly and is driven by a first servo motor 206 to move left and right, a double-headed belt assembly 500 is installed on a vertical movable assembly and is driven by a second servo motor 607 to move up and down, and the movements of the rotary mold 300 and the double-headed belt assembly 500 are combined into a contour track of a pot 307.

Referring to fig. 13 and 14, a schematic diagram of inner wall polishing is shown, and two different types of abrasive belts 506 can be installed due to the double polishing heads 508, wherein the left polishing head 508 moves from left to right during operation, from bottom to top, at which time the right polishing head 508 is idle, and outside the pot 307, the right polishing head 508 moves from right to left during operation, from bottom to top, at which time the left polishing head 508 is idle, and outside the pot 307.

Referring to fig. 15 and fig. 16, two different types of abrasive belts 506 can be installed to the outer sole polishing schematic view, the left polishing head 508 moves from left to right when working, at this time, the right polishing head 508 is idle, and outside the pot 307, the right polishing head 508 moves from right to left when working, at this time, the left polishing head 508 is idle, and outside the pot 307.

Referring to fig. 4 and 5, the rotary die 300 includes a three-phase motor 309 controlled by a frequency converter, a rotary die holder 301, an airtight main shaft 302, a v-belt 303, a belt cover 304, a die flange 305, a die head 306, and a first pulley 308; an airtight structure that the main shaft rotates but the pipeline does not rotate is formed inside the airtight main shaft 302 through a mechanical sealing piece, and the airtight main shaft 302 is provided with a second belt pulley 310; the airtight main shaft 302 is installed on the rotary die support 301, the three-phase motor 309 is fixed on the rotary die support 301, the first belt pulley 308 is installed on a rotating shaft of the three-phase motor 309, and the first belt pulley 308 and the second belt pulley 310 are connected through the triangular belt 303 to realize linkage; the die head 306 is arranged on the airtight main shaft 302 through a die flange 305, and the top of the die head 306 is provided with a negative pressure port communicated with the airtight structure of the airtight main shaft 302; a sealing ring is embedded in a groove at the top of the die head 306; after the pot 307 is placed into the die head 306, the airtight main shaft 302 transmits negative pressure to tightly suck the pot 307, and the three-phase motor 309 drives the airtight main shaft 302 to rotate through the first belt pulley 308 and the triangular belt 303, so that the pot 307 is driven to rotate. The three-phase motor 309 rotates, the first belt pulley 308 is linked with the second belt pulley 310 through the triangular belt 303 to drive the airtight main shaft 302 to rotate, the rotating speed of the airtight main shaft is adjusted according to different pots 307 to achieve the required cutting linear speed, and the surface texture effect of the pots 307 is directly influenced; the airtight main shaft 302 supports high-speed rotation, an airtight structure is formed in the airtight main shaft through a mechanical sealing piece, the main shaft rotates, a pipeline does not rotate, and the problem of pipeline winding is solved; due to the arrangement of the sealing ring and the negative pressure port, the pot 307 is sleeved into the die head 306 and then is sucked tightly by suction force generated by external negative pressure, and the grinding process is firmly absorbed on the die head 306. In this embodiment, the die 306 is made of aluminum material, which facilitates processing and reduces weight. Since the horizontal motion assembly 200 and the vertical motion assembly 600 can only synthesize the profile track of the pot 307, and the track will cover the entire surface of revolution of the pot 307 in addition to the rotation of the pot 307. In addition, the high-speed rotation can make the cutting speed of abrasive belt 506 great, improve the cutting force, and the generated airflow can accelerate cooling of abrasive belt 506 and prevent breakage. After die head 306 is put into to pan 307, airtight main shaft 302 transmission negative pressure is inhaled pan 307 tightly, and three-phase motor 309 passes through first belt pulley 308 and drives airtight main shaft 302 rotation through V-belt 303 linkage second belt pulley 310 to it is rotatory to drive pan 307, and rotatory mould support 301 is installed on horizontal motion subassembly 200, can follow and remove about, and pan 307 moves along with it, and belt cover 304 covers transmission part, prevents to take place the incident.

Referring to fig. 2 and 3, the horizontal movement assembly 200 includes a movement assembly base, a horizontal sliding block 201, a first track 202, a guide rail seat 203, a limit block 204, a dust cover 205, a first servo motor 206, a planetary reducer 207, a gear 208, a rack 209, a reducer mounting plate, and a first limit sensor 210; the gear 208 and the guide rail seat 203 are arranged on the base of the motion assembly, the first linear rail 202 is arranged on the guide rail seat 203, and the speed reducer mounting plate is connected to the first linear rail 202 through the horizontal sliding block 201 and can slide along the first linear rail 202; the planetary reducer 207 is arranged on the rotating shaft of the first servo motor 206, the gear 208 is arranged at the output end of the planetary reducer 207, and the gear 208 is meshed with the rack 209; two ends of the speed reducer mounting plate are respectively provided with a dust cover 205, two ends of the motion assembly base are respectively provided with a first limit sensor 210 and a limit block 204, and the first limit sensor 210 is in signal connection with a first servo motor 206; the dust cover 205, the first servo motor 206, the planetary reducer 207 and the reducer mounting plate form a movable part, and the movable part slides on the first linear rail 202 between the two limit blocks 204; the rotary die holder 301 is mounted on the speed reducer mounting plate, and the first servo motor 206 is located inside the rotary die holder 301. The first servo motor 206 is used in cooperation with the planetary reducer 207 as a horizontal motion power source, and has the characteristics of high speed and high precision, so that the accuracy of the synthetic motion and the high-speed performance of the whole machine are ensured; the gear 208 is matched with the rack 209 to convert the rotary motion of the first servo motor 206 into linear motion, and the first servo motor 206, the planetary reducer 207 and the gear 208 form a whole to move horizontally; the first wire track 202 is matched with the horizontal sliding block 201 to guide and support horizontal movement. In the embodiment, the gear 208 and the rack 209 are both made of wear-resistant materials with high rigidity, so that the service life of the whole machine can be ensured; the first line rail 202 and the horizontal sliding block 201 both have the characteristics of high rigidity and high precision, so that the smoothness of horizontal movement can be ensured, and the vibration of equipment is reduced; the elastic rubber blocks are installed on the opposite sides of the two limiting blocks 204, so that the collision caused by misoperation can be buffered, and the parts of the horizontal movement assembly 200 can be prevented from being damaged. When the horizontal movement assembly 200 works, the first servo motor 206 drives the gear 208 to rotate after being decelerated by the planetary reducer 207, the gear 208 is meshed with the rack 209, the rack 209 is fixed, the gear 208 comprises a whole set of motor assembly which is forced to slide left and right, the two ends of the horizontal movement assembly 200 are provided with the first limit sensor 210 and the limiting block 204, when the error or misoperation occurs, the horizontal movement assembly can be suddenly stopped and has a collision buffering effect, the parts are prevented from being damaged, and the dust cover 205 can protect the first linear rail 202 and the rack 209 of the gear 208, so that the service life is ensured. Each time the equipment is started, the first servo motor 206 drives the gear 208 to rotate, and drives the rotary die 300 to move leftwards until the first limit sensor obtains a signal, and the first servo motor 206 stops; when the device works, the first servo motor 206 drives the pot 307 to move left and right, and the horizontal movement of the pot and the vertical movement of the polishing cutter head 508 can be combined into the outline track of the pot through the accurate control of the device; the horizontal movement assembly 200 is provided with a first limit sensor 210 and an elastic limit at both ends thereof, so as to prevent the damage of the equipment caused by the over-travel caused by misoperation.

Referring to fig. 6 and 7, the vertical motion assembly 600 includes a ball screw support 601, a vertical movable plate 602, a vertical slider 902, a circular rail 603, a second limit sensor 604, a dust-proof cover 605, an optical axis support 606, a second servo motor 607, a servo motor seat 608, a coupling 609, a ball screw 610 and a vertical movable assembly support 611; the vertical movable component support 611 is fixed on the upright column 700, two circular rails 603 are provided and are respectively located at two ends of the vertical movable component support 611, two ends of the circular rail 603 are mounted on the vertical movable component support 611 through the optical axis support 606, and the vertical movable plate 602 is mounted on the circular rail 603 through the vertical sliding block 902 and can slide up and down along the circular rail; the second servo motor 607 is installed on the vertical movable assembly bracket 611 through the servo motor base 608, one end of the ball screw 610 is supported by the screw support base, the other end is located in the servo motor base 608 and is connected with the second servo motor 607 through the coupling 609, the ball screw 610 is sleeved with a screw nut, the vertical movable plate 602 is installed on the screw nut, the second servo motor 607 rotates to drive the ball screw 610 to rotate, so that the screw nut moves linearly up and down, and the vertical movable plate 602 is driven to move up and down; double-ended belt assembly 500 is mounted on vertical motion plate 602; the upper part and the lower part of the vertical movable assembly bracket 611 are respectively provided with a second limit sensor 604, the second limit sensor 604 is in signal connection with a second servo motor 607, and the vertical movable plate 602 slides up and down between the two second limit sensors 604; the dust-proof sleeve 605 is sleeved at the joint of the circular rail 603 and the ball screw 610. The second servo motor 607, as the power source of the vertical motion, it has high-speed high-precision characteristic, guarantee the accuracy of the resultant motion and high-speed performance of the complete machine; the ball screw 610 is connected with the second servo motor 607 through a coupler 609, the rotary motion of the motor is converted into linear motion, the ultra-high precision characteristic is achieved, the accuracy of the resultant motion is guaranteed, and the weight of the whole double-head abrasive belt assembly 500 and the pressure in the vertical direction in the polishing process are borne; the circular rail 603 and the vertical sliding block 902 are used for guiding and supporting vertical movement, so that a transverse force is prevented from being directly acted on the ball screw 610, the high-precision low-damping characteristic is realized, the smooth movement is ensured, and the movement resistance is reduced; the dust cover 605 can protect the circular rail 603 and the ball screw 610, and the service life is prolonged. When the equipment is started each time, the second servo motor 607 drives the ball screw 610 to rotate, the screw nut moves up and down linearly, so that the vertical movable plate 602 moves up and down, the double-end abrasive belt assembly 500 is directly connected with the vertical movable plate 602, so that the tool bit assembly moves up and down, the double-end abrasive belt assembly 500 moves up and down until a signal is obtained by the second limit sensor, and the second servo motor 607 stops and brakes to lock; when the pan grinding device works, the second servo motor drives the grinding cutter head 508 to move up and down, and through accurate control of the pan grinding device, the horizontal movement of the pan 307 and the vertical movement of the grinding cutter head 508 can be combined into a contour track of a pan; the vertical motion assembly 600 is provided with second limit sensors 604 at both ends to prevent damage to the apparatus due to over-travel caused by an operator error.

Referring to fig. 8-10, dual-head belt assembly 500 includes a fixed plate and two sets of belt 506 take-up and pay-off devices mounted on the fixed plate, wherein the two sets of belt 506 take-up and pay-off devices have the same structure and are symmetrically mounted on the fixed plate; the abrasive belt 506 winding and unwinding device comprises a winding disc 501, a guide wheel 502, an unwinding disc 503, a tensioning device 504, an unwinding pressing device, an abrasive belt 506, a cutter arm 507, a grinding cutter head 508, an abrasive belt quantitative feeding device 512 and a buffer device 511;

a reel-out 503 for placing unused abrasive belt 506;

the abrasive belt quantitative feeding device 512 is arranged beside the reel plate 503 and is used for providing power for feeding the abrasive belt 506 and quantitatively controlling the feeding amount of the abrasive belt 506, and the abrasive belt quantitative feeding device 512 is provided with a feeding rubber wheel 5125;

the unwinding pressing device is arranged beside the abrasive belt quantitative feeding device 512, the unwinding pressing device is provided with an unwinding pressing wheel 505, the abrasive belt 506 is pressed on the feeding rubber wheel 5125 by the unwinding pressing wheel 505, unwinding friction force is generated to quantitatively pull out the abrasive belt 506, and tension force of the abrasive belt 506 is provided after the feeding of the abrasive belt 506 is finished;

referring to fig. 8 to 12, the grinding bit 508 is mounted on the knife arm 507, the abrasive belt 506 from the unreeling pressing wheel 505 bypasses from one side of the knife arm 507 and is tightly attached to the grinding bit 508, the grinding bit 508 presses the surface of the pot 307, and the grinding bit 508 rubs the abrasive belt 506 to grind the pot 307; a sanding belt 506 from a sanding head 508 passes around the other side of the knife arm 507 and enters the tensioning device 504;

tensioning device 504 is connected to sanding head 508 via sanding belt 506 for providing tensioning force to sanding belt 506 from sanding head 508;

the winding disc 501 is used for switching the working surface of the abrasive belt 506 which is loose from the tensioning device 504, tightening the abrasive belt 506 and automatically winding the abrasive belt 506, and the winding disc 501 is provided with a winding motor 509;

the tensioning device 504 is provided with a tensioning sensor 803 for controlling the on-off of the winding motor 509; guide wheel 502 is disposed between any two adjacent components as needed to control the orientation of abrasive belt 506. The guide wheel 502 is connected with a guide wheel 502 fixing shaft and is arranged on the fixing plate through the guide wheel 502 fixing shaft. The unwinding pressing wheel 505 can press the abrasive belt 506 on the feeding rubber wheel 5125, unwinding friction force is generated to pull the abrasive belt 506 out quantitatively, the abrasive belt 506 can be loosened when replaced, the replacement is convenient, and the tension of the abrasive belt 506 can be provided after the feeding of the abrasive belt 506 is finished; abrasive belt 506 is attached to grinding tool bit 508 and pressed against the surface of pot 307 during grinding, so that pot 307 can be ground. The guide wheel 502 is connected with a guide wheel fixing shaft and is mounted on the fixing plate through the guide wheel fixing shaft.

Reel 503 is installed on the fixed plate and is installed with a damping plate that can prevent it from moving freely due to inertia during feeding of belt 506; referring to fig. 19, the abrasive belt quantitative feeding device 512 includes an unwinding motor 510, an unwinding speed reducer 5122, a first speed reducer pad 5123, a first bearing block 5124, an abrasive belt feeding shaft 5126, and a first washer 5121; the unwinding speed reducer 5122 is connected to the unwinding motor 510, the unwinding speed reducer 5122 is mounted on the first bearing block 5124 through a first speed reducer backing plate 5123, and the first bearing block 5124 is fixed on the fixing plate; the unwinding speed reducer 5122 is connected with the feeding rubber wheel 5125 through an abrasive belt feeding shaft 5126, and the first gasket 5121 is arranged between the feeding rubber wheel 5125 and the first bearing seat 5124; the unreeling motor 510 is a single-phase speed regulating motor which controls the feeding amount of the abrasive belt 506 through the power-on time of the motor; the unwinding speed reducer 5122 is a worm gear speed reducer with a self-locking characteristic, and after the unwinding motor 510 is powered on, the unwinding speed reducer 5122 drives the feeding rubber wheel 5125 to rotate, so that the automatic feeding of the abrasive belt 506 is realized. The worm gear speed reducer with self-locking characteristic can prevent the abrasive belt 506 from loosening after the unwinding motor 510 is powered off; when receiving a feeding command, the unreeling motor 510 is powered on to rotate, the abrasive belt 506 is pulled out from the unreeling disc 503 by means of friction force generated by cooperation of the unreeling pinch roller 505, and the abrasive belt 506 stops at the current position after power failure after reaching a preset time. Because the feeding rubber wheel 5125 is independent of the reel-out plate 503, the feeding amount is not influenced by the diameter of the material wound by the abrasive belt 506; the coarse belt 506 is also smoothly fed due to the active unwinding mode.

Referring to fig. 17, the unwinding pressing device includes a cylinder bottom plate 906, a cylinder 905, a sliding valve 904 connected to the cylinder 905, a pressing wheel shaft 907, a second linear rail 901, a sliding block 902 disposed on and sliding along the second linear rail 901, and a pressing support 903; the second linear rail 901 is fixed on the cylinder bottom plate 906, one end of the cylinder 905 is fixed on the cylinder bottom plate 906, and the other end of the cylinder is connected with the pressing support seat 903; the unreeling pinch roller 505 is fixed on a pinch support seat 903 through a pinch roller shaft 907, and the pinch support seat 903 is installed on the slider 902; the unreeling pressing wheel 505 presses the abrasive belt 506 on the feeding rubber wheel 5125 or moves away from the feeding rubber wheel 5125 along the direction of the second line rail 901 along with the expansion and contraction of the air cylinder 905 to loosen the abrasive belt 506; four rollers are arranged on two sides of the cutter arm 507, namely a first roller, a second roller, a third roller and a fourth roller, wherein the first roller and the second roller are positioned on one side of the cutter arm 507, and the third roller and the fourth roller are positioned on the other side of the cutter arm 507; the polishing tool bit 508 is made of hard silica gel and is cut into the shape of the corner of the pot 307, and the polishing tool bit 508 is attached to the surface of the pot 307; abrasive belt 506 conveyed by feeding rubber wheel 5125 sequentially passes around the inner side of the first roller, the outer side of the second roller, sanding head 508, the outer side of the third roller, and the inner side of the fourth roller and then extends backward to tensioning device 504. The unreeling pinch roller 505 is controlled by the air cylinder 905, the unreeling pinch roller 505 compresses the abrasive belt 506 on the feeding rubber wheel 5125 along the direction of the second line rail 901, the compressed abrasive belt 506 is matched with the unreeling motor 510 to quantitatively pull the abrasive belt 506 out when unreeling, when the abrasive belt 506 is replaced, the sliding valve 904 is manually controlled to retract the air cylinder 905, the pinch roller is far away from the feeding rubber wheel 5125, the abrasive belt 506 penetrates through the air cylinder, the pinch roller and the unreeling roller are compressed uniformly when in normal work, the unreeling motor 510 drives the abrasive belt 506 to be pulled out from the unreeling disc 503, and the abrasive belt 506 is convenient to replace. The knife arm 507 can extend into the pot 307 to polish the inner wall, and plays a role in guiding and supporting the abrasive belt 506.

Referring to fig. 18, the tensioning device 504 includes a tensioning spring 806, a guide post 805, a tensioning wheel mounting block 807, a tensioning wheel 804 mounted on the tensioning wheel mounting block 807, a tensioning sensor seat 808, a linear bearing mounting seat 801, and a linear bearing 802 mounted on the linear bearing mounting seat 801; a tension wheel mounting block 807 is fixed on one end of the guide column 805, and the other end of the guide column 805 is mounted in the linear bearing 802 and can slide back and forth along the linear bearing; the tension spring 806 is sleeved on the periphery of the guide post 805, one end of the tension spring abuts against the tension wheel mounting block 807, and the other end of the tension spring abuts against the linear bearing mounting seat 801; the tension sensor 803 is mounted on the linear bearing mount 801 by a tension sensor mount 808. When the abrasive belt 506 is tightened, the tension spring 806 is in a compressed state, the tension wheel 804 generates a tension force on the abrasive belt 506, the abrasive belt 506 is loose after being fed, the tension spring 806 extends to enable the abrasive belt 506 which is partially redundant of the grinding tool bit 508 to automatically move towards the direction of the winding disc 501, the winding disc 501 is convenient to wind, the tension sensor 803 of the tension device 504 controls the on-off of the winding motor 509 through signals, the abrasive belt 506 keeps unchanged after the winding motor 509 is powered off, and the tension force of the whole abrasive belt 506 is provided by the tension spring 806; the tension sensor 803 is used to detect the tension state of the tension pulley 804. When the abrasive belt 506 is tensioned by the winding motor 509, the tension wheel 804 is forced to retreat, the tension spring 806 is compressed to provide tension for the abrasive belt 506, when the tension sensor 803 is signaled, which means that the tension reaches a preset condition, the winding motor 509 is powered off, the abrasive belt 506 is kept tensioned by the pressure of the tension spring 806, when the abrasive belt 506 is pulled loose by the unwinding motor 510, the tension spring 806 is reset to extend, the tension sensor 803 is signaled, and the feeding operation process of the abrasive belt 506 is started.

Referring to fig. 20, the winding disc 501 includes a winding speed reducer 5011, a second speed reducer backing plate 5012, a second bearing seat 5013, a second gasket 5014, an abrasive belt winding shaft 5015, and a butterfly nut 5016; the winding speed reducer 5011 is connected with the winding motor 509, the winding speed reducer 5011 is mounted on a second bearing seat 5013 through a second speed reducer backing plate 5012, and the second bearing seat 5013 is fixed on the fixing plate; the winding speed reducer 5011 is connected with the winding disc 501 through an abrasive belt winding shaft 5015, a second gasket 5014 is arranged between the winding disc 501 and a second bearing seat 5013, and a butterfly nut 5016 is screwed on the abrasive belt winding shaft 5015 and compresses or loosens the winding disc 501; the winding motor 509 is a single-phase speed regulating motor, and the winding speed reducer 5011 is a worm gear speed reducer with a self-locking characteristic.

Referring to fig. 11 to 12, the sanding tool bit 508 in the dotted line represents the position of the previous motion, the solid line represents the current position, a buffer device 511 is mounted on the fixing plate, the buffer device 511 comprises a buffer cylinder 5111 and a crank arm 5112, one end of the crank arm 5112 is mounted on the telescopic rod of the buffer cylinder 5111, and the other end of the crank arm 5112 is connected with the tool arm 507; when the device works normally, the buffer cylinder 5111 is in an extending state; when the horizontal movement arm collides, the buffer cylinder 5111 is compressed to adjust and control the working pressure of the ground cutter 508. The cushion cylinder 5111 can adjust and control the pressure of the sanding head 508 and also can perform buffer collision protection.

In this embodiment, there are two sets of belt 506 take-up and pay-off devices, which can feed belt 506 and tension belt automatically and quantitatively, and two grinding bits 508 work in turn to complete two processes. The two sets of abrasive belt 506 take-up and pay-off devices have the same function, abrasive belts 506 with different models can be installed, and two processes are completed by one machine from thick to thin. The whole roll of abrasive belt 506 is installed on a unreeling disc 503, the unreeling motor 510, a grinding cutter head 508, a guide wheel 502 and a tensioning device 504 are pulled out to the unreeling disc 501, after each process is finished, the unreeling motor 510 is electrified, the abrasive belt 506 is pulled out from the unreeling disc 503 through the cooperation of the unreeling pressing wheel 505, the electrifying time of the unreeling motor 510 can control the feeding amount of the abrasive belt 506, the abrasive belt 506 becomes loose at the grinding cutter head 508 after being pulled out, the abrasive belt is separated from the grinding cutter head 508, the friction coefficient is reduced, meanwhile, the tensioning device 504 extends out under the action of a tensioning spring 806, the tensioning sensor 803 loses a signal, a reeling motor 509 is electrified, the abrasive belt 506 is slowly reeled into the unreeling disc 501, the abrasive belt 506 at the grinding cutter head 508 is tensioned, the whole abrasive belt 506 is limited in track by the guide wheel 502 and is tightened, the reeling device 504 is compacted by the abrasive belt, the unwinding motor 510 of the winding machine makes the abrasive belt 506 not move any more by means of the self-locking characteristic of the worm gear speed reducer, and at the moment, the abrasive belt 506 tightly wraps the grinding cutter head 508 by means of the tension provided by the tension spring 806 of the tension device 504, so that the abrasive belt 506 and the grinding cutter head 508 cannot slide or fall off in the grinding process.

The working principle of the embodiment is as follows: the pan 307 is tightly sucked by the rotary mold 300 through negative pressure, the three-phase motor 309 drives the rotary mold 300 and the pan 307 to rotate at high speed, the horizontal motion assembly 200 drives the pan 307 to move horizontally, the vertical motion assembly 600 drives the polishing tool bit 508 to move vertically, the contact point of the polishing tool bit 508 and the pan 307 is moved in two directions to form a profile curve of the tangent plane of the pan 307, the pan 307 rotates, the whole revolution surface of the pan 307 is finally covered, the abrasive belt 506 is tightly pressed on the surface of the pan 307 in the whole process, and the purpose of polishing the pan 307 is achieved through large linear speed difference cutting.

The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.

Claims

1. Vertical automatic sander, its characterized in that: the automatic quantitative feeding device comprises a base, a horizontal motion assembly, a rotary mold, a stand column, a vertical motion assembly and a double-head abrasive belt assembly, wherein the horizontal motion assembly is arranged on the base; an electric box is arranged on the upright post, and the electric box is respectively connected with the horizontal movement component, the rotary die, the vertical movement component and the double-head abrasive belt component and supplies power to the horizontal movement component, the rotary die, the vertical movement component and the double-head abrasive belt component; the double-head abrasive belt component is provided with a grinding cutter head used for grinding the inner wall and the outer bottom of the cooker, and the grinding cutter head rubs an abrasive belt to grind the cooker.

2. The vertical automatic sander according to claim 1, wherein: the rotary die comprises a three-phase motor controlled by a frequency converter, a rotary die support, an airtight main shaft, a triangular belt, a belt cover, a die flange, a die head and a first belt pulley; an airtight structure with a main shaft rotating but a pipeline not rotating is formed in the airtight main shaft through a mechanical sealing element, and the airtight main shaft is provided with a second belt pulley; the airtight main shaft is installed on the rotary die support, the three-phase motor is fixed on the rotary die support, the first belt pulley is installed on a rotating shaft of the three-phase motor, and the first belt pulley and the second belt pulley are connected through the triangular belt to realize linkage; the die head is arranged on the airtight main shaft through the die flange, and the top of the die head is provided with a negative pressure port communicated with the airtight structure of the airtight main shaft; a sealing ring is embedded in a groove in the top of the die head; after the cookware is placed into the die head, the airtight main shaft transmits negative pressure to suck the cookware tightly, and the three-phase motor drives the airtight main shaft to rotate through the first belt pulley and the triangular belt, so that the cookware is driven to rotate.

3. The vertical automatic sander according to claim 2, wherein: the horizontal motion assembly comprises a motion assembly base, a horizontal sliding block, a first linear rail, a guide rail base, a limiting block, a dust cover, a first servo motor, a planetary reducer, a gear, a rack, a reducer mounting plate and a first limit sensor; the gear and the guide rail seat are arranged on the motion assembly base, the first linear rail is arranged on the guide rail seat, and the speed reducer mounting plate is connected to the first linear rail through the horizontal sliding block and can slide along the first linear rail; the planetary reducer is arranged on the rotating shaft of the first servo motor, the gear is arranged at the output end of the planetary reducer, and the gear is meshed with the rack; the dustproof covers are respectively installed at two ends of the speed reducer installation plate, the first limit sensor and the limiting block are respectively installed at two ends of the motion assembly base, and the first limit sensor is in signal connection with the first servo motor; the dust cover, the first servo motor, the planetary reducer and the reducer mounting plate form a movable part, and the movable part slides on a first line rail between the two limiting blocks; the rotary die support is installed on the speed reducer mounting plate, and the first servo motor is located in the rotary die support.

4. The vertical automatic sander according to claim 1, wherein: the vertical motion assembly comprises a ball screw support seat, a vertical movable plate, a vertical sliding block, a circular rail, a second limit sensor, a dustproof sleeve, an optical axis support, a second servo motor, a servo motor seat, a coupler, a ball screw and a vertical movable assembly support; the vertical movable component supports are fixed on the upright posts, two circular rails are arranged and are respectively positioned at two ends of the vertical movable component supports, two ends of each circular rail are installed on the vertical movable component supports through the optical axis supports, and the vertical movable plate is installed on the circular rails through the vertical sliding blocks and can slide up and down along the circular rails; the second servo motor is installed on the vertical movable assembly support through a servo motor seat, one end of the ball screw is supported by the screw support seat, the other end of the ball screw is located in the servo motor seat and is connected with the second servo motor through the coupler, the ball screw is sleeved with a screw nut, the vertical movable plate is installed on the screw nut, and the second servo motor rotates to drive the ball screw to rotate, so that the screw nut moves linearly up and down, and the vertical movable plate is driven to move up and down; the double-end abrasive belt assembly is mounted on the vertical movable plate; the upper part and the lower part of the vertical movable assembly support are respectively provided with the second limit sensors, the second limit sensors are in signal connection with the second servo motor, and the vertical movable plate slides up and down between the two second limit sensors; the dustproof sleeve is sleeved at the joint of the circular rail and the ball screw rod.

5. The vertical automatic sander according to claim 1, wherein:

the unwinding disc is used for placing an unused abrasive belt;

6. The vertical automatic sander according to claim 5, wherein: the unwinding disc is arranged on the fixed plate, and a damping sheet capable of preventing the unwinding disc from moving randomly due to inertia in the abrasive belt feeding process is arranged at the mounting position; the abrasive belt quantitative feeding device comprises an unwinding motor, an unwinding speed reducer, a first speed reducer base plate, a first bearing block, an abrasive belt feeding shaft and a first gasket; the unwinding speed reducer is connected with the unwinding motor, the unwinding speed reducer is mounted on the first bearing block through the first speed reducer base plate, and the first bearing block is fixed on the fixing plate; the unwinding speed reducer is connected with the feeding rubber wheel through the abrasive belt feeding shaft, and the first gasket is arranged between the feeding rubber wheel and the first bearing seat; the unreeling motor is a single-phase speed regulating motor which controls the feeding amount of the abrasive belt through the power-on time of the motor; the unwinding speed reducer is a worm and gear speed reducer with a self-locking characteristic, and after the unwinding motor is electrified, the unwinding speed reducer drives the feeding rubber wheel to rotate, so that the automatic feeding of the abrasive belt is realized.

7. The vertical automatic sander according to claim 5, wherein: the unreeling and pressing device comprises a cylinder bottom plate, a cylinder, a sliding valve connected with the cylinder, a pressing wheel shaft, a second linear rail, a sliding block and a pressing support seat, wherein the sliding block is arranged on the second linear rail and slides along the second linear rail; the second line rail is fixed on the cylinder bottom plate, one end of the cylinder is fixed on the cylinder bottom plate, and the other end of the cylinder is connected with the pressing support seat; the unreeling pinch roller is fixed on the pressing support seat through the pinch roller shaft, and the pressing support seat is arranged on the sliding block; the unreeling pressing wheel presses the abrasive belt on the feeding rubber wheel or is far away from the feeding rubber wheel along the direction of the second line rail along with the expansion and contraction of the cylinder so as to loosen the abrasive belt; four rollers are arranged on two sides of the cutter arm, namely a first roller, a second roller, a third roller and a fourth roller, wherein the first roller and the second roller are positioned on one side of the cutter arm, and the third roller and the fourth roller are positioned on the other side of the cutter arm; the polishing tool bit is made of hard silica gel and is cut into a shape of a turning angle of a pot, and the polishing tool bit is attached to the surface of the pot; the abrasive belt conveyed by the feeding rubber wheel sequentially bypasses the inner side of the first roller, the outer side of the second roller, the grinding cutter head, the outer side of the third roller and the inner side of the fourth roller and then extends to the tensioning device.

8. The vertical automatic sander according to claim 5, wherein: the tensioning device comprises a tensioning spring, a guide post, a tensioning wheel mounting block, a tensioning wheel mounted on the tensioning wheel mounting block, a tensioning sensor seat, a linear bearing mounting seat and a linear bearing mounted on the linear bearing mounting seat; the tensioning wheel mounting block is fixed on one end of the guide post, and the other end of the guide post is mounted in the linear bearing and can slide back and forth along the linear bearing; the tensioning spring is sleeved on the periphery of the guide post, one end of the tensioning spring abuts against the tensioning wheel mounting block, and the other end of the tensioning spring abuts against the linear bearing mounting seat; the tensioning sensor is arranged on the linear bearing mounting seat through the tensioning sensor seat.

9. The vertical automatic sander according to claim 5, wherein: the winding disc comprises a winding speed reducer, a second speed reducer base plate, a second bearing seat, a second gasket, an abrasive belt winding shaft and a butterfly nut; the winding speed reducer is connected with the winding motor, the winding speed reducer is mounted on the second bearing block through the second speed reducer base plate, and the second bearing block is fixed on the fixing plate; the winding speed reducer is connected with the winding disc through the abrasive belt winding shaft, the second gasket is arranged between the winding disc and the second bearing seat, and the butterfly nut is screwed on the abrasive belt winding shaft and tightly presses or loosens the winding disc; the winding motor is a single-phase speed regulating motor, and the winding speed reducer is a worm and gear speed reducer with a self-locking characteristic.

10. The vertical automatic sander according to claim 7, wherein: a buffer device is arranged on the fixing plate and comprises a buffer cylinder and a crank force arm, one end of the crank force arm is arranged on a telescopic rod of the buffer cylinder, and the other end of the crank force arm is connected with the cutter arm; when the buffer cylinder works normally, the buffer cylinder is in an extending state; when the horizontal motion arm generates collision, the buffer cylinder is compressed to adjust and control the working pressure of the polished cutter head.