Polishing device for plastic meal box processing and processing technology thereof

Abstract

The invention provides a polishing device for plastic meal box processing and a processing technology thereof.The polishing device comprises a base, a supporting frame is connected to the top end of the base, a top plate is connected to the top end of the supporting frame, a plurality of first hydraulic air cylinders are arranged at the top end of the base, and a fixing plate is connected to the output ends of the first hydraulic air cylinders; a grinding wheel is slidably connected to the fixing plate, and driving assemblies are arranged at the two ends of the grinding wheel in a matched mode. The pressing columns are matched with the supporting columns to fix the plastic meal box, the pressing columns are attached to the inner side wall of the plastic meal box, the fixing effect of the plastic meal box is improved, and the situation that the grinding effect is affected by shaking of the plastic meal box in the grinding process is prevented; and the pressing column is detachably connected with the adapter, so that the corresponding pressing column can be conveniently replaced when the plastic meal boxes with different sizes are polished, and the utilization rate of the equipment is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of lunch box processing, and in particular relates to a polishing device for processing a plastic lunch box and a processing technology thereof. Background Art

[0002] Plastic lunch boxes are used more and more widely in our lives. Plastic lunch boxes are mainly plastic containers made of food-grade plastic raw materials for the convenience of taking food away. They are a very common household plastic product in our daily life. In the processing of plastic lunch boxes, the edges of the initially processed products have many burrs or unevenness. In order to achieve the size and aesthetics of the product, they need to be cut and polished.

[0003] In the existing technology, the grinding efficiency of the grinding device is low, which greatly reduces the production efficiency of the enterprise. At the same time, during the grinding process, the plastic lunch box is not firmly fixed, which affects the grinding accuracy; the plastic lunch boxes processed by the enterprise have different styles and sizes, and the existing equipment can only grind lunch boxes of one size, which leads to low equipment utilization. At the same time, a large amount of waste chips are generated during the grinding process, which is easy to pollute the environment and endanger the health of employees. Therefore, a new type of grinding device for plastic lunch box processing and its processing technology are proposed. Summary of the Invention

[0004] The present invention provides a polishing device for processing plastic lunch boxes and a processing technology thereof, aiming to solve the problems of low polishing efficiency of existing polishing devices, which greatly reduces the production efficiency of enterprises, the plastic lunch boxes are not firmly fixed, which affects the polishing accuracy, the low utilization rate of equipment, and the generation of a large amount of waste chips during the polishing process, which easily pollutes the environment and endangers the health of employees.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a grinding device for processing plastic lunch boxes, comprising a base, a support frame connected to the top of the base, a top plate connected to the top of the support frame, a plurality of first hydraulic cylinders provided on the top of the base, a fixed plate connected to the output ends of the plurality of first hydraulic cylinders, a grinding wheel slidably connected to the fixed plate, and a driving assembly provided on both ends of the grinding wheel;

[0006] The bottom end of the top plate is connected to a fixing seat, the bottom of the fixing seat is connected to a second hydraulic cylinder, the output end of the second hydraulic cylinder is connected to an adapter, and a pressing column is detachably connected to the adapter;

[0007] A sealing plate is provided between the base and the top plate, and the sealing plate seals the grinding device. An automatic door is provided on a side wall of one end of the sealing plate, and a dust removal component is provided between the sealing plate and the top plate.

[0008] Preferably, any of the driving components includes a driving motor, the driving motor is fixed to the top of the fixed plate, a gear is connected to the output end of the driving motor, groove teeth are provided on the side walls around the grinding wheel, and the gear is engaged with the groove teeth.

[0009] Preferably, a slide rail is provided on the top of the fixed plate, and a plurality of sliding rods are slidably connected to the slide rail. The bottom of the grinding wheel is connected to a plurality of connecting seats, and the plurality of connecting seats are arranged in cooperation with the sliding rods, and the sliding rods are detachably connected to the grinding wheel through the connecting seats.

[0010] Preferably, through holes are respectively opened at the middle positions of the grinding wheel and the fixed plate, and a support column is connected to the middle position of the top end of the base. The support column passes through the fixed plate and the grinding wheel, and the support column is cooperated with the clamping column.

[0011] Preferably, an external thread is provided on the upper side wall of the compression column, a slot is provided on the lower portion of the adapter seat, an internal thread is provided on the side wall of the slot, and the internal thread is adapted to the external thread.

[0012] Preferably, distance sensors are respectively provided on both sides of the top of the fixing plate, and a sensing element is connected to the bottom of the top plate, and the sensing element is provided in cooperation with the distance sensor.

[0013] Preferably, a pressure sensor is connected to the top of the support column.

[0014] Preferably, the dust removal assembly includes an exhaust fan, which is fixed at the top of the top plate, one end of the exhaust fan is connected to a connecting pipe, the other end of the exhaust fan is connected to a collecting box, and an absorption pipe is connected to the inner wall of the sealing plate, and the absorption pipe is connected to the connecting pipe.

[0015] Preferably, a support assembly is provided on the bottom of the top plate, and the support assembly includes two third hydraulic cylinders, and the two third hydraulic cylinders are respectively arranged on both sides of the fixed seat, and the output ends of the two third hydraulic cylinders are connected to a support plate, and a support plate through hole is opened in the middle of the support plate, and the diameter of the support plate through hole is larger than the size of the adapter seat.

[0016] A grinding process for processing plastic lunch boxes includes:

[0017] Step 1: Fasten the plastic lunch box: The automatic door opens and the manipulator places the plastic lunch box horizontally on the support column with the opening facing upward. The manipulator resets and the automatic door closes. The second hydraulic cylinder drives the pressing column to move downward to fit the inner wall of the plastic lunch box and cooperates with the support column to fix the plastic lunch box. At the same time, the third hydraulic cylinder drives the support plate to move downward to fit the edge of the plastic lunch box.

[0018] Step 2: Grinding: The first hydraulic cylinder drives the fixed plate, the grinding wheel and the driving assembly to move slowly upwards, while the driving motor drives the gear to rotate, and the gear drives the grinding wheel to rotate, thereby grinding the plastic lunch box;

[0019] Step 3: Absorbing waste chips: When the drive motor starts, the exhaust fan starts, and the exhaust fan drives the gas flow, thereby generating negative pressure at the opening of the absorption tube, and then the waste chips generated by grinding are sucked into the collection box for storage;

[0020] Step 4. After polishing is completed, the automatic door opens, the second hydraulic cylinder and the first hydraulic cylinder reset, and then the third hydraulic cylinder drives the support plate to reset. The polished plastic lunch box stays on the support column, the automatic door opens, and the robot takes out the polished plastic lunch box at the same time, completing the polishing of the plastic lunch box.

[0021] The beneficial effects of the present invention are as follows: the grinding wheel is disc-shaped, and the entire cutting surface of the bottom of the plastic lunch box is fitted on the grinding wheel, and the grinding wheel grinds the entire end surface that needs to be polished at the same time, which greatly improves the grinding efficiency, and the entire end surface is polished at the same time, so that the entire end surface remains flat; when fixing the lunch box, the second hydraulic cylinder drives the adapter and the pressing column connected to the adapter to move downward, so that the pressing column is fitted with the inner wall of the plastic lunch box, and the plastic lunch box is fixed under the cooperation of the pressing column and the supporting column. The pressing column is fitted with the inner wall of the plastic lunch box, thereby improving the fixing effect of the plastic lunch box and preventing the plastic lunch box from shaking during the grinding process and affecting the grinding effect; the adapter and the tightening column are detachably connected with a pressure, and thus when processing plastic lunch boxes of different models, pressing columns of different sizes can be replaced, and the pressing column can be adapted to lunch boxes of different sizes, thereby improving the utilization rate of the equipment and greatly reducing the production cost of the enterprise;

[0022] The sealing plate cooperates with the base and the top plate to form a sealed space. The polishing device is located in the sealed space, so that the waste generated when polishing the plastic lunch box can be retained in the sealed space. At the same time, the exhaust fan drives the air flow, thereby generating negative pressure at the opening of the absorption tube. The negative pressure absorbs the waste during the polishing process into the absorption tube, and moves it to the collection box for storage through the connecting tube, thereby preventing the waste from flowing into the air to pollute the environment and endanger the health of workers.

[0023] The sliding rods are detachably connected to the corresponding connecting seats, so that the grinding wheel and the sliding rod can be disassembled. The grinding wheel is a consumable item, which greatly facilitates the replacement of the grinding wheel; the pressing column and the adapter seat are detachably connected, which makes it convenient to replace the corresponding pressing column when grinding plastic lunch boxes of different sizes, thereby greatly improving the utilization rate of the equipment;

[0024] The distance sensor is used to monitor the distance between the fixed plate and the top plate in real time to prevent the first hydraulic cylinder from moving too far upward, resulting in excessive polishing, causing the plastic lunch box to be of different sizes, affecting the appearance and accuracy of the product; a pressure sensor is connected to the top of the support column, and the pressure sensor can monitor the pressure when the support column and the clamping column fix the plastic lunch box, thereby effectively preventing the support column and the clamping column from using too much pressure to fix the plastic lunch box, thereby preventing the plastic lunch box from being damaged due to excessive pressure, and also preventing the plastic lunch box from being loosely fixed due to too little pressure when fixing the lunch box, thereby affecting the polishing effect of the plastic lunch box; the support plate supports and stabilizes the edge of the plastic lunch box to prevent the impact force of the grinding wheel from causing deformation at the edge of the plastic lunch box and affecting the accuracy of polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 for Figure 1 sectional view of

[0027] Figure 3 This is a schematic diagram of the lunch box placement structure during processing of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the drive assembly in the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the adapter and the pressing column in the present invention;

[0030] Figure 6 This is a structural diagram of the plastic lunch box of the present invention;

[0031] In the figure: 1-base, 2-support frame, 3-top plate, 4-first hydraulic cylinder, 5-fixed plate, 6-grinding wheel, 7-drive assembly, 71-drive motor, 72-gear, 8-fixed seat, 9-second hydraulic cylinder, 10-adapter, 11-compression column, 12-sealing plate, 13-automatic door, 14-dust removal assembly, 141-exhaust fan, 142-connecting pipe, 143-collection box, 144-absorption tube, 15-slide rail, 16-slide rod, 17-connecting seat, 18-through hole, 19-support column, 20-external thread, 21-distance sensor, 22-sensor, 23-pressure sensor, 24-support assembly, 241-third hydraulic cylinder, 242-support plate, 25-plastic lunch box. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-6 The present invention provides a technical solution for a grinding device for processing plastic lunch boxes: a grinding device for processing plastic lunch boxes, comprising a base 1, a support frame 2 is connected to the top of the base 1, a top plate 3 is connected to the top of the support frame 2, the base 1 and the top plate 3 are connected through the support frame 2, and the stability of the connection between the top plate 3 and the base 1 is increased by the support frame 2, a plurality of first hydraulic cylinders 4 are fixedly connected to the top of the base 1, a fixed plate 5 is connected to the output end of the plurality of first hydraulic cylinders 4, the plurality of first hydraulic cylinders 4 work synchronously, and then the fixed plate 5 is driven up and down by the plurality of first hydraulic cylinders 4, thereby driving the grinding wheel 6 to grind the plastic lunch box 25, A grinding wheel 6 is slidably connected to the top of the fixed plate 5, and a driving assembly 7 is provided on both ends of the grinding wheel 6. The driving assembly 7 is used to drive the grinding wheel 6 to rotate on the fixed plate 5. When the grinding wheel 6 rotates, the first hydraulic cylinders 4 drive the fixed plate 5 and the grinding wheel 6 on the fixed plate 5 and the driving assembly 7 to move upward slowly, thereby grinding the edge of the plastic lunch box 25 during the rotation of the grinding wheel 6. At the same time, the grinding wheel 6 is disc-shaped, and the entire cut surface of the bottom of the plastic lunch box 25 fits on the grinding wheel 6. The grinding wheel 6 grinds the entire end face that needs to be polished at the same time, which greatly improves the efficiency of grinding. The entire end face is polished at the same time, so that the entire end face remains flat.

[0034] The bottom end of the top plate 1 is fixedly connected to a fixing seat 8, and the bottom of the fixing seat 8 is fixedly connected to a second hydraulic cylinder 9. The output end of the second hydraulic cylinder 9 is connected to an adapter seat 10, and a pressing column 11 is detachably connected to the adapter seat 10. Therefore, when processing plastic lunch boxes 25 of different models, pressing columns 11 of different sizes can be replaced, and the pressing column 11 can adapt to lunch boxes of different sizes, thereby improving the utilization rate of the equipment and greatly reducing the production cost of the enterprise. When the manipulator moves the plastic lunch box to be polished onto the supporting column 19, the second hydraulic cylinder 9 drives the adapter seat 10 and the pressing column 11 connected to the adapter seat 10 to move downward, so that the pressing column 11 is fitted with the inner wall of the plastic lunch box. Under the cooperation of the pressing column 11 and the support column 19, the plastic lunch box is fixed. The pressing column 11 is fitted with the inner wall of the plastic lunch box, thereby improving the fixing effect of the plastic lunch box and preventing the plastic lunch box from shaking during the polishing process and affecting the polishing effect.

[0035] A sealing plate 12 is connected between the base 1 and the top plate 3, and the sealing plate 12 seals the four end faces between the base 1 and the top plate 3. The sealing plate 12 is located outside the support frame 2, and then the sealing plate 12 cooperates with the base 1 and the top plate 3 to form a sealed space. The polishing device is located in the sealed space, so that the waste generated when polishing the plastic lunch box can be retained in the sealed space, preventing the polishing waste and pollutants from flowing with the air, which can effectively prevent the waste and pollutants from polluting the environment and endangering the health of the staff; an automatic door 13 is connected to the side wall of one end of the sealing plate 12, and when the manipulator takes the plastic lunch box, the automatic door 13 opens automatically, thereby greatly accelerating the efficiency of polishing; a dust removal component 14 is provided between the sealing plate 12 and the top plate 3, and the dust removal component 14 is used to absorb the waste in the sealed space to prevent the waste from accumulating in the sealed space and affecting the operation of the polishing equipment; a controller is connected to the polishing device, and the controller is a single-chip microcomputer, so that the polishing device is controlled to work fully automatically by the single-chip microcomputer, thereby greatly improving the efficiency of polishing and improving the accuracy of polishing.

[0036] Specifically, any drive assembly 7 includes a drive motor 71, which is fixed to the top of the fixed plate 5. The two drive motors 71 are respectively located on both sides of the grinding wheel 6. A gear 72 is connected to the output end of any drive motor 71. Grooved teeth are provided on the side walls around the grinding wheel 6, and the gear 72 engages with the grooved teeth. The two drive motors 71 rotate synchronously and cooperatively. The rotation of the drive motor 71 drives the gear 72 to rotate, and the gear 72 drives the grinding wheel 6 to rotate, and then during the rotation of the grinding wheel 6, the cut surface of the plastic lunch box is polished.

[0037] A slide rail 15 is provided on the top of the fixed plate 5, and the slide rail 15 and the grinding wheel 6 are adapted to each other. A number of sliding rods 16 are slidably connected to the slide rail 15, and a number of connecting seats 17 are fixedly connected to the bottom of the grinding wheel 6. The several connecting seats 17 are coordinated with the sliding rod 16, and the sliding rods 16 are detachably connected to the corresponding connecting seats 17, so that the grinding wheel 6 and the sliding rod 16 can be disassembled. The grinding wheel 6 is a consumable, which greatly facilitates the replacement of the grinding wheel 6; the sliding rod 16 is slidably connected to the fixed plate 5 through the slide rail 15, and then when the driving motor 71 drives the grinding wheel 6 to rotate, the grinding wheel 6 rotates and drives the sliding rod 16 to rotate relative to the fixed plate 5, and the grinding wheel 6 is rotatably connected to the fixed plate 5, so that the grinding wheel 6 grinds the plastic lunch box.

[0038] In this embodiment, through holes 18 are respectively opened at the middle positions of the grinding wheel 6 and the fixed plate 5. The size of the through hole 18 is adapted to the support column 19. A support column 19 is connected to the middle position of the top of the base 1. The support column 19 passes through the fixed plate 5 and the grinding wheel 6 through the through hole 18. The support column 19 extends to the top of the grinding wheel 6, and the support column 19 cooperates with the clamping column 11 to fix the plastic lunch box; at the same time, the support column 19 supports the plastic lunch box; since the through hole 18 of the support column 19 passes through the fixed plate 5 and the grinding wheel 6, it is convenient for the first hydraulic cylinder 4 to drive the fixed plate 5, the grinding wheel 6 and the drive assembly 7 to move up and down during the grinding process.

[0039] Specifically, an external thread 20 is provided on the upper outer wall of the compression column 11, a slot is provided on the lower part of the adapter 10, and an internal thread is provided on the side wall of the slot. The internal thread is adapted to the external thread 20, so that the compression column 11 and the adapter 10 can be detachably connected, making it convenient to replace the corresponding compression column when polishing plastic lunch boxes of different sizes, thereby greatly improving the utilization rate of the equipment.

[0040] The edges of both sides of the top of the fixed plate 5 are respectively connected to distance sensors 21, and the bottom of the top plate 3 is connected to a sensing element 22, which is respectively located directly above the distance sensors 21, and the sensing element 22 is arranged in conjunction with the distance sensor 21; when the first hydraulic cylinder 4 drives the fixed plate 5, the grinding wheel 6 and the driving assembly 7 to move upward, the distance between the fixed plate 5 and the top plate 3 is monitored in real time by the distance sensor 21 to prevent the first hydraulic cylinder 4 from moving too far during the upward movement, resulting in excessive grinding, causing the size of the plastic lunch box to be different and affecting the aesthetics of the product; before grinding the plastic lunch box, calculate The distance the first hydraulic cylinder 4 moves upward and the distance between the fixed plate 5 and the top plate 3 are monitored in real time through the cooperation of the single-chip microcomputer and the distance sensor 21 during the polishing process. When the distance reaches a predetermined value, the distance sensor 21 transmits a signal to the single-chip microcomputer, and the single-chip microcomputer transmits a signal to the first hydraulic cylinder 4, and the first hydraulic cylinder 4 stops extending, thereby greatly improving the accuracy of polishing the plastic lunch box 25; through the cooperation between the sensing element 22 and the distance sensor 21, the accuracy of the distance monitoring of the distance sensor 21 is greatly improved, thereby improving the accuracy of polishing the plastic lunch box.

[0041] In this embodiment, a pressure sensor 23 is connected to the top of the support column 19. The pressure sensor 23 can monitor the pressure when the support column 19 and the compression column 11 fix the plastic lunch box, thereby effectively preventing the support column 19 and the compression column 11 from fixing the plastic lunch box with too much pressure and damaging the plastic lunch box. It can also prevent the pressure when fixing the lunch box from being too low, resulting in the plastic lunch box being not firmly fixed, affecting the polishing effect of the plastic lunch box.

[0042] Specifically, the dust removal assembly 14 includes an exhaust fan 141, which is fixed to the top of the top plate 3, one end of the exhaust fan 141 is connected to a connecting pipe 142, and the other end of the exhaust fan 141 is connected to a collection box 143, which is fixed to the top of the top plate 3, and a filter device is connected to the vent of the collection box 143. The filter device filters the gas flowing out of the vent to prevent waste from flowing into the air from the vent to pollute the environment and endanger the health of the staff; the sealing plate 12 An absorption tube 144 is connected to the inner wall, and a plurality of openings are opened on the absorption tube 144, and the absorption tube 144 is connected to the connecting tube 142; when the exhaust fan 141 is working, the gas flow is driven by the exhaust fan 141, and then a negative pressure is generated at the opening of the absorption tube 144. The negative pressure absorbs the waste chips in the grinding process into the absorption tube 144, and moves it to the collection box 143 for storage through the connecting tube 142, thereby preventing the waste chips from flowing into the air to pollute the environment and endanger the health of the workers.

[0043] A support assembly 24 is provided on the bottom of the top plate 3, and the support assembly 24 includes two third hydraulic cylinders 241. The two third hydraulic cylinders 241 are fixed to the bottom end of the top plate 3 and are respectively located on both sides of the fixing seat 8. The output ends of the two third hydraulic cylinders 241 are connected to a support plate 242. A support plate through hole is provided in the middle of the support plate 242. The diameter of the support plate through hole is larger than the size of the adapter 10 and is adapted to the plastic lunch box. After the support column 19 and the pressing column 11 fix the plastic lunch box, the two third hydraulic cylinders 241 synchronously drive the support plate 242 to move downward, and the support plate 242 supports and stabilizes the edge of the plastic lunch box. When the grinding wheel 6 is grinding the plastic lunch box, the impact force of the grinding wheel 6 can easily cause deformation of the edge of the plastic lunch box 25. The support plate 242 supports and stabilizes the edge of the plastic lunch box 25, which can prevent the deformation of the plastic lunch box 25 from affecting the grinding accuracy.

[0044] A grinding process for processing plastic lunch boxes, comprising:

[0045] Step 1: Fasten the plastic lunch box: the automatic door 13 opens and the manipulator places the plastic lunch box with the opening facing upwards horizontally on the support column 19. The manipulator resets and the automatic door 13 closes. The second hydraulic cylinder 9 drives the pressing column 11 to move downwards and fit into the inner wall of the plastic lunch box, and cooperates with the support column 19 to fix the plastic lunch box. The pressure sensor 23 connected to the top of the support column 19 monitors the pressure when the support column 19 and the pressing column 11 fix the plastic lunch box, thereby effectively preventing the support column 19 and the pressing column 11 from excessively damaging the plastic lunch box. It can also prevent the pressure when fixing the lunch box from being too low, resulting in the plastic lunch box being not firmly fixed, affecting the polishing effect of the plastic lunch box. At the same time, the two third hydraulic cylinders 241 synchronously drive the support plate 242 to move downward and fit the edge of the plastic lunch box. The support plate 242 supports and stabilizes the edge of the plastic lunch box; when the grinding wheel 6 is in the process of polishing the plastic lunch box, the impact force of the grinding wheel 6 can easily cause the edge of the plastic lunch box 25 to deform. The support plate 242 supports and stabilizes the edge of the plastic lunch box 25, which can prevent the deformation of the plastic lunch box 25 from affecting the polishing accuracy.

[0046] Step 2: Grinding process: The first hydraulic cylinder 4 drives the fixed plate 5, the grinding wheel 6 and the driving assembly 7 to move upward slowly. During the movement, the distance between the fixed plate 5 and the top plate 3 is monitored in real time by the distance sensor 21 to prevent the first hydraulic cylinder 4 from moving too far upward, resulting in excessive grinding, causing the plastic lunch box to have different sizes and affecting the appearance of the product; before the plastic lunch box is polished, the distance the first hydraulic cylinder 4 moves upward and the distance between the fixed plate 5 and the top plate 3 are calculated, and then during the polishing process, the distance between the fixed plate 5 and the top plate 3 is monitored in real time by the cooperation of the single chip microcomputer and the distance sensor 21. When the distance reaches the predetermined value, The distance sensor 21 transmits a signal to the single-chip microcomputer, and the single-chip microcomputer transmits a signal to the first hydraulic cylinder 4, and the first hydraulic cylinder 4 stops extending, thereby greatly improving the accuracy of the polishing of the plastic lunch box 25. At the same time, the driving motor 71 drives the gear 72 to rotate, and the gear 72 drives the polishing wheel 6 to rotate. During the rotation of the polishing wheel 6, the edge of the plastic lunch box 25 is polished. At the same time, the polishing wheel 6 is disc-shaped, and the entire cut surface of the bottom of the plastic lunch box 25 is attached to the polishing wheel 6. The polishing wheel 6 polishes the entire end face that needs to be polished at the same time, greatly improving the efficiency of polishing. The entire end face is polished at the same time, prompting the entire end face to remain flat, and at the same time greatly improving the efficiency of upper polishing;

[0047] Step 3: Absorbing waste chips: When the drive motor 71 is started and the exhaust fan 141 is working, the exhaust fan 141 drives the gas flow, thereby generating a negative pressure at the opening of the absorption tube 144. The negative pressure absorbs the waste chips generated during the grinding process into the absorption tube 144, and moves the waste chips through the connecting tube 142 to the collection box 143 for storage, thereby preventing the waste chips from flowing into the air and polluting the environment and endangering the health of the workers. At the same time, a filter device is connected to the vent hole of the collection box 143, and the filter device filters the gas flowing out of the vent hole, thereby preventing the waste chips from flowing into the air and polluting the environment and endangering the health of the workers.

[0048] Step 4: After polishing is completed, the automatic door 13 opens, the second hydraulic cylinder 9 and the first hydraulic cylinder 4 are reset, and then the third hydraulic cylinder 241 drives the support plate 242 to reset. The polished plastic lunch box stays on the support column 19, the automatic door 13 opens, and the robot takes out the polished plastic lunch box at the same time, completing the polishing of the plastic lunch box.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for processing plastic lunch boxes, comprising a base (1), a support frame (2) connected to the top of the base (1), and a top plate (3) connected to the top of the support frame (2), characterized in that: A plurality of first hydraulic cylinders (4) are provided on the top of the base (1); a fixed plate (5) is connected to the output ends of the plurality of first hydraulic cylinders (4); a grinding wheel (6) is slidably connected to the fixed plate (5); and a driving assembly (7) is provided at both ends of the grinding wheel (6); The bottom end of the top plate (1) is connected to a fixing seat (8), the bottom of the fixing seat (8) is connected to a second hydraulic cylinder (9), the output end of the second hydraulic cylinder (9) is connected to an adapter seat (10), and a pressing column (11) is detachably connected to the adapter seat (10); A sealing plate (12) is provided between the base (1) and the top plate (3), and the sealing plate (12) seals the grinding device. An automatic door (13) is provided on a side wall at one end of the sealing plate (12), and a dust removal component (14) is provided between the sealing plate (12) and the top plate (3).

2. A polishing device for processing plastic lunch boxes according to claim 1, characterized in that: Any of the drive components (7) includes a drive motor (71), the drive motor (71) is fixed to the top of the fixed plate (5), the output end of the drive motor (71) is connected to a gear (72), and the side walls of the grinding wheel (6) are provided with groove teeth, and the gear (72) is engaged with the groove teeth.

3. A polishing device for processing plastic lunch boxes according to claim 1, characterized in that: A slide rail (15) is provided on the top of the fixed plate (5), and a plurality of slide rods (16) are slidably connected to the slide rail (15). A plurality of connecting seats (17) are connected to the bottom of the grinding wheel (6). The plurality of connecting seats (17) are matched with the slide rods (16), and the slide rods (16) are detachably connected to the grinding wheel (6) through the connecting seats (17).

4. A polishing device for processing plastic lunch boxes according to claim 1, characterized in that: A through hole (18) is respectively provided at the middle position of the grinding wheel (6) and the fixed plate (5), and a support column (19) is connected to the middle position of the top end of the base (1). The support column (19) passes through the fixed plate (5) and the grinding wheel (6), and the support column (19) is arranged in cooperation with the pressing column (11).

5. The polishing device for processing plastic lunch boxes according to claim 1, characterized in that: An external thread (20) is provided on the upper side wall of the compression column (11), a slot is provided on the lower portion of the adapter seat (10), and an internal thread is provided on the side wall of the slot, and the internal thread is adapted to the external thread (20).

6. A polishing device for processing plastic lunch boxes according to claim 1, characterized in that: Distance sensors (21) are respectively provided on both sides of the top of the fixing plate (5), and a sensing element (22) is connected to the bottom of the top plate (3), and the sensing element (22) is provided in coordination with the distance sensor (21).

7. A polishing device for processing plastic lunch boxes according to claim 4, characterized in that: A pressure sensor (23) is connected to the top end of the support column (19).

8. The polishing device for processing plastic lunch boxes according to claim 1, characterized in that: The dust removal assembly (14) comprises an exhaust fan (141), the exhaust fan (141) is fixed to the top of the top plate (3), one end of the exhaust fan (141) is connected to a connecting pipe (142), the other end of the exhaust fan (141) is connected to a collecting box (143), and an absorption pipe (144) is connected to the inner side wall of the sealing plate (12), and the absorption pipe (144) is in communication with the connecting pipe (142).

9. The polishing device for processing plastic lunch boxes according to claim 1, characterized in that: A support assembly (24) is provided on the bottom of the top plate (3), and the support assembly (24) includes two third hydraulic cylinders (241). The two third hydraulic cylinders (241) are respectively provided on both sides of the fixing seat (8), and the output ends of the two third hydraulic cylinders (241) are connected to a support plate (242). A support plate through hole is provided in the middle of the support plate (242), and the diameter of the support plate through hole is larger than the size of the adapter seat (10).

10. A polishing process for processing plastic lunch boxes, using a polishing device for processing plastic lunch boxes according to any one of claims 1 to 9, characterized in that: include: Step 1: Fasten the plastic lunch box: the automatic door (13) opens, the manipulator places the plastic lunch box horizontally with the opening facing upward on the support column (19), the manipulator resets, the automatic door (13) closes, the second hydraulic cylinder (9) drives the pressing column (11) to move downward to fit the inner wall of the plastic lunch box, and cooperates with the support column (19) to fix the plastic lunch box, while the third hydraulic cylinder (241) drives the support plate (242) to move downward to fit the edge of the plastic lunch box; Step 2: Grinding process: The first hydraulic cylinder (4) drives the fixed plate (5), the grinding wheel (6) and the driving assembly (7) to slowly move upward, while the driving motor (71) drives the gear (72) to rotate, and the gear (72) drives the grinding wheel (6) to rotate, thereby grinding the plastic lunch box; Step 3: Absorbing waste chips: When the drive motor (71) is started, the exhaust fan (141) is started, and the exhaust fan (141) drives the gas flow, thereby generating negative pressure at the opening of the absorption tube (144), thereby sucking the waste chips generated by grinding into the collection box (143) for storage; Step 4: After polishing is completed, the automatic door (13) is opened, the second hydraulic cylinder (9) and the first hydraulic cylinder (4) are reset, and then the third hydraulic cylinder (241) drives the support plate (242) to reset. The polished plastic lunch box stays on the support column (19), the automatic door (13) is opened, and the manipulator takes out the polished plastic lunch box at the same time, completing the polishing of the plastic lunch box.

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