A grinding and polishing device for refrigerator metal trim panels

Abstract

This invention discloses a grinding and polishing device for refrigerator metal decorative panels, including a processing platform and a grinding device. The grinding device is arranged along the length of the processing platform and includes two grinding interfaces perpendicular to the processing platform. The grinding device rotates in a plane perpendicular to the processing platform, and the workpiece contacts the grinding interface for grinding and polishing. Translation mechanisms are respectively arranged on both sides of the grinding device and cooperate with the grinding interface. The translation mechanism includes a translation plate, which is controlled by a translation drive mechanism to move closer to or away from the grinding interface. Multiple workpiece fixing units are evenly arranged on the side of the translation plate closest to the grinding interface. The workpiece fixing units can fix the workpiece individually or collaboratively. The grinding device of this invention can form grinding interfaces on both sides and can form a large grinding area, thereby enabling simultaneous grinding of multiple workpieces in batches, greatly improving grinding efficiency.

Description

Technical Field

[0001] This invention relates to the field of decorative panel processing technology, specifically to a grinding and polishing device for refrigerator metal decorative panels. Background Technology

[0002] With the rapid development of science and technology, people's demands for home appliances are increasing. Refrigerators have become necessities in people's daily lives and work, and people's requirements for the aesthetics and feel of refrigerators are also rising. To enhance and ensure the refrigerator's appearance and comfortable feel, the grinding and polishing process for the refrigerator's metal panels is essential during the manufacturing process. Grinding and polishing equipment can be used not only for grinding and polishing the surface of metal panels, but also, after the metal panels have been coated with primer, to increase the adhesion of the topcoat, and so on.

[0003] For example, prior art (application number: CN202010544955.9) discloses a metal panel grinding device for machining, belonging to the field of machining. It includes a base plate, with support plates fixedly connected to both sides of the upper part of the base plate, and a pneumatic guide rail fixedly connected to the middle of the upper part of the base plate. A slide table is slidably connected to the upper part of the pneumatic guide rail, and a moving plate is fixedly connected to the upper part of the slide table. A fourth motor is fixedly connected to the left side of the right-side bracket, and a second gear is installed on the upper part of the fourth motor. A first gear meshes with the left side of the second gear. A rotating shaft is installed inside the first gear, and a fixed plate is fixedly connected to the upper part of the rotating shaft. A mounting seat is fixedly connected to the left side of the upper part of the support plate, and a first motor is fixedly connected to the lower part of the mounting seat. A first pulley is installed in front of the first motor, and a first connecting rod is fixedly connected to the left side of the first pulley. A second connecting rod is hinged to the right side of the first connecting rod, and a second pulley is installed behind the second connecting rod. A second grinding wheel is installed behind the second pulley.

[0004] However, the above-mentioned device still has shortcomings. It can only grind one metal plate at a time, which not only consumes a lot of manual labor but also takes a lot of time, resulting in low grinding and polishing efficiency. At the same time, the device is not convenient to adjust the distance between the metal plate and the grinding part, which is not flexible and cannot meet the needs of different situations.

[0005] In view of the above, it is necessary to propose a grinding and polishing device for refrigerator metal decorative panels to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems by providing a grinding and polishing device for refrigerator metal decorative panels.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a refrigerator metal decorative panel grinding and polishing device, including a processing platform and a grinding device, wherein the grinding device is arranged along the length direction of the processing platform and includes two grinding interfaces perpendicular to the direction of the processing platform. The grinding device rotates in a plane position perpendicular to the processing platform, and the workpiece contacts the grinding interface for grinding and polishing.

[0008] The translation mechanism is respectively disposed on both sides of the grinding equipment and cooperates with the grinding interface. The translation mechanism includes a translation plate, which is controlled by a translation drive mechanism to move closer to or away from the grinding interface. Multiple workpiece fixing units are evenly arranged on the side of the translation plate closer to the grinding interface. The workpiece fixing units can fix the workpiece individually or in concert.

[0009] The translation drive mechanism is used to simultaneously control the two translation mechanisms to move closer to or away from the corresponding grinding interface. The translation drive mechanism includes a slider that moves along the center line between the two translation plates. The upper sides of the slider are connected to the ends of the two translation plates by first connecting rods. The two first connecting rods are symmetrically arranged in a figure-eight shape with respect to the center line. The sliders on both sides move away from each other and pull the two translation plates closer to the grinding interface.

[0010] Furthermore, the translation drive mechanism also includes a slider drive mechanism disposed on the lower end face of the processing platform. The slider drive mechanism includes a parallelogram drive frame, a cylinder, a second connecting rod, a telescopic rod, and a guide sleeve. The four corner points of the parallelogram drive frame are all hinged. The midpoints of the two sides of the parallelogram drive frame are rotatably connected to two pins arranged along the center line. The pins are fixedly connected to the bottom surface of the processing platform. The cylinder is hinged to one corner point of the parallelogram drive frame to drive the parallelogram drive frame to deform. The two corner points on the diagonals of the parallelogram are respectively hinged to the second connecting rod. The other end of the second connecting rod is hinged to the end of the telescopic rod. The other end of the telescopic rod is connected to the slider. The guide sleeve is fixed on the lower end face of the processing platform and arranged along the center line direction. The telescopic rod is slidably connected inside the guide sleeve.

[0011] Furthermore, the grinding equipment includes a sanding belt roller, a grinding belt, and a support plate. The sanding belt roller is set perpendicular to the processing platform along the center line direction. The sanding belt roller is rotatably connected to the processing platform. A grinding belt is sleeved on the outside of the two sanding belt rollers. A support plate is provided in the inner space of the grinding belt and fits against the inner surface of the grinding belt. The support plate and the grinding belt form a grinding interface. A drive unit is also provided between the two grinding interfaces. The drive unit is used to drive at least one sanding belt roller to rotate.

[0012] Furthermore, the drive unit includes a drive motor fixed on the processing platform, a driven sprocket is provided on the shaft of the sanding belt roller, the output end of the drive motor is connected to the driven sprocket through a chain and drives the sanding belt roller to rotate; multiple support rods are provided between the support plates on both sides.

[0013] Furthermore, the workpiece fixing unit includes a stand and a rotating shaft. The translation plate is provided with a bearing with a seat. The translation plate and the processing platform are slidably connected by multiple linear guide rails. The linear guide rails are set perpendicular to the grinding interface. The rotating shaft is rotatably connected and placed in the bearing with a seat. The upper end of the rotating shaft is fixedly provided with a stand. The stand is set perpendicular to the translation plate. The stand is provided with multiple suction cups on the side near the grinding interface.

[0014] Furthermore, the translation plate is also provided with a rotation control unit that simultaneously drives multiple workpiece fixing units to rotate and grind. A swing arm is fixed on the side of the rotating shaft away from the grinding interface. The rotation control unit includes a lever, a track groove, and an eccentric turntable. The lever is hinged to the ends of multiple swing arms. The lever is provided with a track groove, which is perpendicular to the lever. An eccentric turntable is rotatably connected to the translation plate. An eccentric rod is provided on the eccentric turntable and placed in the track groove.

[0015] Furthermore, the root of the suction cup is rotatably connected to the stand, and the suction cup on each stand is controlled by a suction cup control mechanism to rotate synchronously. The rotation of the suction cup is used to control the rotation of the workpiece for grinding.

[0016] Furthermore, the suction cup control mechanism includes a synchronizing disc, a synchronizing rod, and a return spring. The suction cup is connected to the synchronizing disc inside the frame, and the frame is also equipped with a synchronizing rod. The synchronizing rod is rotatably connected to the eccentric position of multiple synchronizing discs inside the frame, and the upper end of the synchronizing rod is connected to the upper end of the frame through a return spring.

[0017] Furthermore, the translation plate is equipped with a traction mechanism that simultaneously pulls multiple synchronous rods to move. The traction mechanism includes a winding shaft and a steel wire rope. The winding shaft is rotatably connected inside the translation plate and is arranged parallel to the center line. The lower end of the synchronous rod is connected to one end of the steel wire rope. The steel wire rope passes downward through the shaft cavity at the center of the rotating shaft and is guided by the steering wheel and wound on the winding shaft. The winding shaft simultaneously winds up the steel wire ropes in multiple uprights on the translation plate.

[0018] Furthermore, a flared ring for guiding the wire rope is fixedly provided at the upper end of the shaft cavity. The opening of the flared ring faces upward, and the wire rope passes through the flared ring from top to bottom.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The grinding equipment of the present invention can form grinding interfaces on both sides and can form a large grinding area, thereby enabling simultaneous grinding of multiple workpieces in batches, which greatly improves grinding efficiency.

[0021] 2. The translation mechanism can simultaneously control the position of several workpieces fixed on both sides, allowing them to be attached to the grinding equipment for grinding or moved away; the suction cup can quickly and reliably fix the metal decorative panel with negative pressure.

[0022] 3. The parallelogram drive frame can generate driving torques on the sliders on both sides in the same direction but opposite in direction, so that it can drive both sides of the translation plate at the same time, so that the translation plates on both sides can move in a mirror image.

[0023] 4. The workpiece fixing unit can be rotated relative to the translation plate, which facilitates grinding and polishing of curved metal decorative panels.

[0024] 5. The suction cup is designed to be rotatable, which makes it easy to rotate the adsorbed workpiece for grinding and polishing, thereby achieving a variety of grinding effects. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a refrigerator metal trim panel grinding and polishing device according to this application;

[0026] Figure 2 This is a bottom view of the structure of a grinding and polishing device for a refrigerator metal decorative panel according to this application;

[0027] Figure 3 This is a schematic diagram of the grinding equipment in this application;

[0028] Figure 4 This is a top view of the rotation control unit inside the translation plate;

[0029] Figure 5 This is a side view of a refrigerator metal trim panel grinding and polishing apparatus according to this application;

[0030] Figure 6 for Figure 5 Schematic diagram of section AA;

[0031] In the diagram: 1. Machining platform; 2. Grinding interface; 3. Translation plate; 4. Workpiece fixing unit; 5. Slider; 6. First connecting rod; 7. Parallelogram drive frame; 8. Cylinder; 9. Second connecting rod; 10. Telescopic rod; 11. Guide sleeve; 12. Pin; 13. Sanding belt roller; 14. Grinding belt; 15. Support plate; 16. Drive motor; 17. Chain; 18. Support rod; 19. Stand; 20. Rotating shaft; 21. Bearing with seat; 22. Linear guide rail; 23. Suction cup; 24. Swing arm; 25. Lever; 26. Track groove; 27. Eccentric turntable; 28. Eccentric rod; 29. ​​Synchronizing disc; 30. Return spring; 31. Synchronizing rod; 32. Winding shaft; 33. Wire rope; 34. Trumpet ring; 35. Steering wheel. Detailed Implementation

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Example 1:

[0034] A grinding and polishing device for refrigerator metal trim panels, such as Figure 1 , Figure 3 As shown, the device includes a processing platform 1 and a grinding device. The grinding device is arranged along the length of the processing platform 1 and includes two grinding interfaces 2 perpendicular to the processing platform 1. The grinding device rotates in a plane perpendicular to the processing platform 1. The workpiece contacts the grinding interface 2 for grinding and polishing. The grinding interfaces 2 on both sides can provide a large area for grinding the workpiece, thus providing a basis for grinding multiple workpieces simultaneously. Specifically, the grinding device is made of abrasive belts 14 tensioned and sleeved on both sides by abrasive belt rollers 13. The rotation of the abrasive belt rollers 13 controls the rotation of the abrasive belt 14 to form a rotary motion, thereby enabling the grinding operation.

[0035] The grinding equipment includes a sanding belt roller 13, a grinding belt 14, and a support plate 15. The sanding belt roller 13 is set perpendicular to the processing platform 1 along the center line. The rotating grinding belt 14 can form a grinding interface 2 under the support of the support plates 15 on both sides. The sanding belt roller 13 is rotatably connected to the processing platform 1. Preferably, the sanding belt roller 13 is set on the center line, so that the spacing of the grinding interfaces 2 on both sides is symmetrical. The grinding belt 14 is sleeved on the outside of the two sanding belt rollers 13. The inner space of the grinding belt 14 is fitted with the inner surface of the grinding belt 14 and the support plate 15 is provided. The support plate 15 and the grinding belt 14 form the grinding interface 2. Multiple support rods 18 are provided between the support plates 15 on both sides. When the workpiece is pressed on the grinding belt 14, it forms a compressive force on the support plate 15. The compressive force on both sides can be offset by the support rods 18 provided between the two support plates 15, which facilitates the stability of the grinding process and improves the grinding accuracy.

[0036] A drive unit is also provided between the two grinding interfaces 2, which is used to drive at least one sanding belt roller 13 to rotate. Figure 3 As shown, the drive unit includes a drive motor 16 fixed on the processing platform 1. A driven sprocket is provided on the rotating shaft 20 of the sanding belt roller 13. The output end of the drive motor 16 is connected to the driven sprocket through a chain 17 and drives the sanding belt roller 13 to rotate. The rotation of the drive motor 16 controls the rotation of one sanding belt roller 13 through the transmission of the sprocket and chain 17. Then, the transmission of the sanding belt roller 13 causes both sanding belt rollers 13 to rotate simultaneously. It can be understood that one sanding belt roller 13 is the driving end and the other sanding belt roller 13 is the driven end. In actual use, the sanding belt roller 13 at the driving end should preferably be set in a fixed position, while the sanding belt roller 13 at the driven end can be equipped with a tensioning mechanism. The tensioning mechanism is an existing mechanism, and its structure will not be described in detail in this embodiment. The tensioning mechanism can drive the sanding belt roller 13 at the driven end to move a small range along the center line to tighten the sanding belt 14.

[0037] Example 2:

[0038] The translation mechanism is respectively disposed on both sides of the grinding equipment and respectively cooperates with the grinding interface 2. The translation mechanism includes a translation plate 3, such as... Figure 1 As shown, the translation plate 3 is slidably connected to the processing platform 1 by multiple linear guide rails 22. The linear guide rails 22 are set perpendicular to the grinding interface 2, so that the translation plate 3 moves closer to or away from the grinding interface 2 under the guidance and control of the linear guide rails 22.

[0039] The translation plate 3 is controlled by a translation drive mechanism to move closer to or further away from the polishing interface 2; specifically, as shown in the figure... Figure 1As shown, the translation drive mechanism is used to simultaneously control the translation mechanisms on both sides to move closer to or further away from the corresponding grinding interface 2. The translation drive mechanism includes a slider 5 that moves along the center line between the two translation plates 3. In actual use, a track is set on the center line that passes through the processing platform 1, so that the slider 5 slides back and forth in the track. The upper sides of the slider 5 are connected to the ends of the two translation plates 3 by first connecting rods 6 respectively. The two first connecting rods 6 are symmetrically arranged in a figure-eight shape with respect to the center line. When the sliders 5 on both sides move away from each other, they pull the translation plates 3 on both sides closer to the grinding interface 2, so that the grinding end face of the workpiece contacts the grinding belt 14. When the sliders 5 on both sides move closer to each other, the first connecting rods 6 push the translation plates 3 on both sides away from the grinding interface 2, so that the workpiece being ground is away from the grinding interface 2.

[0040] like Figure 2 As shown, the translation drive mechanism also includes a slider 5 drive mechanism disposed on the lower end face of the processing platform 1. The slider 5 drive mechanism includes a parallelogram drive frame 7, a cylinder 8, a second connecting rod 9, a telescopic rod 10, and a guide sleeve 11. The four corner points of the parallelogram drive frame 7 are all hinged. The midpoints of the two sides of the parallelogram drive frame 7 are rotatably connected to two pins 12 disposed along the center line. The pins 12 are fixedly connected to the bottom surface of the processing platform 1, so that the parallelogram drive frame 7 can rotate with the pins 12 as fixed points, thereby deforming. The deformation characteristics of the parallelogram are used to form a synchronous mirror image of the sliders 5 on both sides. The system is driven by a cylinder 8, which is used to drive the parallelogram drive frame 7 to deform. The cylinder 8 is hinged to one corner of the parallelogram drive frame 7 to drive its deformation. Specifically, one end of the cylinder 8 is hinged to the lower end face of the processing platform 1. Two second connecting rods 9 are hinged to the two corner points on the diagonals of the parallelogram. The other end of the second connecting rod 9 is hinged to the end of a telescopic rod 10, which is connected to the slider 5. The guide sleeve 11 is fixed to the lower end face of the processing platform 1 and positioned along the centerline. The telescopic rod 10 is slidably connected within the guide sleeve 11. In actual control, the extension of the cylinder 8 causes the diagonals of the parallelogram drive frame 7 to extend. The two second connecting rods 9 connected at the two ends of these diagonals push the telescopic rods 10 outwards, thereby controlling the movement of the slider 5. Conversely, when the cylinder 8 retracts, it further controls the sliders 5 to move closer together.

[0041] Example 3:

[0042] Multiple workpiece fixing units 4 are evenly arranged on the side of the translation plate 3 near the grinding interface 2. The workpiece fixing units 4 can fix the workpiece individually or in combination; for example Figure 1 , Figure 5As shown, the workpiece fixing unit 4 includes a stand 19 and a rotating shaft 20. The translation plate 3 is provided with a bearing 21 with a seat. The rotating shaft 20 is rotatably connected and placed in the bearing 21 with a seat. The upper end of the rotating shaft 20 is fixedly provided with the stand 19. The stand 19 is set perpendicularly to the translation plate 3, so that the workpiece fixing unit 4 can stand vertically on the translation plate 3 and rotate in the opposite direction. On the side of the stand 19 near the grinding interface 2, there are multiple suction cups 23. Each suction cup 23 can be used to individually adsorb and fix the workpiece, or they can be used together to adsorb and fix long strip workpieces. In actual use, when processing small metal decorative panels, one workpiece can be individually adsorbed and fixed on each suction cup 23. When processing long strip metal decorative panels, the workpiece can be placed vertically so that multiple suction cups 23 can simultaneously adsorb and fix one workpiece under negative pressure. It can be understood that the suction cup 23 is an existing structure. In order to use negative pressure to adsorb and fix the workpiece, its specific structure will not be described in this embodiment.

[0043] Example 4:

[0044] This embodiment is a further improvement upon Embodiment 3. Through structural improvements, it facilitates grinding and polishing of curved metal decorative panel surfaces. Specifically, for example… Figure 4 As shown, the translation plate 3 is also provided with a rotation control unit that simultaneously drives multiple workpiece fixing units 4 to rotate and grind. Each translation plate 3 is provided with a rotation control unit to control the rotation of the workpiece fixing unit 4 provided on the translation plate 3. Specifically, a swing arm 24 is fixedly provided on the side of the rotating shaft 20 away from the grinding interface 2. The rotation control unit includes a lever 25, a track groove 26, and an eccentric turntable 27. The lever 25 is hinged to the ends of multiple swing arms 24. The lever 25 is provided with a track groove 26, which is perpendicular to the lever 25. An eccentric turntable 27 is rotatably connected to the translation plate 3. An eccentric rod 28 is provided on the eccentric turntable 27, and the eccentric rod 28 is placed in the track groove 26.

[0045] In actual use, the eccentric turntable 27 is driven by a servo motor to rotate. When the eccentric turntable 27 rotates, its eccentric rod 28 moves within the track groove 26, which is vertical. The rotation of the eccentric turntable 27 can drive the lever 25 to move along the center line. It can be understood that the lever 25 slides laterally back and forth. When it slides, it drives the swing arm 24 to rotate, and the swing arm 24 drives the workpiece fixing unit 4 to rotate. In actual use, the swing arm 24 makes an arc rotational motion. Therefore, the swing arm 24 should adopt a telescopic structure (not shown in the figure) so that when the lever 25 moves, it can drive the swing arm 24 to swing freely and simultaneously extend or shorten.

[0046] Example 5:

[0047] The root of the suction cup 23 is rotatably connected to the stand 19. The suction cup 23 on each stand 19 is controlled by a suction cup 23 control mechanism to rotate synchronously. The rotation of the suction cup 23 is used to control the rotation of the workpiece for grinding. In actual use, this embodiment controls the workpiece to rotate for grinding, thereby realizing various grinding operations on the surface of the workpiece.

[0048] like Figure 5 , Figure 6 As shown, the suction cup 23 control mechanism includes a synchronizing disc 29, a synchronizing rod 31, and a return spring 30. The suction cup 23 is connected to the synchronizing disc 29 inside the support frame 19. The support frame 19 also has a synchronizing rod 31 inside, which is rotatably connected to the eccentric position of the multiple synchronizing discs 29 inside the support frame 19. The upper end of the synchronizing rod 31 is connected to the upper end of the support frame 19 through the return spring 30. When the synchronizing rod 31 is pulled downward, it can control the synchronizing discs 29 inside the support frame 19 to rotate simultaneously by the same angle. When the synchronizing rod 31 is released, the angle of the synchronizing discs 29 is reset under the action of the return spring 30.

[0049] Specifically, the translation plate 3 is equipped with a traction mechanism that simultaneously pulls multiple synchronous rods 31. This traction mechanism includes a winding shaft 32 and steel wire ropes 33. The winding shaft 32 is rotatably connected within the translation plate 3 and is parallel to the center line. The lower end of each synchronous rod 31 is connected to one end of the steel wire rope 33. The steel wire rope 33 passes downwards through the shaft cavity at the center of the rotating shaft 20, is guided by the steering wheel 35, and is wound onto the winding shaft 32. The winding shaft 32 simultaneously winds up the steel wire ropes 33 within multiple uprights 19 on the translation plate 3. In actual control, the winding shaft 32 is controlled by a motor to rotate. When the winding shaft 32 rotates, it can simultaneously wind up multiple steel wire ropes 33, thereby controlling the rotation of the synchronous discs 29 within each upright 19, i.e., controlling the rotation of the workpiece.

[0050] like Figure 6 As shown, a flared ring 34 for guiding the wire rope 33 is fixedly provided at the upper end of the shaft cavity. Since the rotating shaft 20 is also used to control the rotation of the workpiece fixing unit 4, the wire rope 33 can rotate along its center line without affecting its rotation position. The opening of the flared ring 34 is set upward, and the wire rope 33 passes through the flared ring 34 from top to bottom. The flared ring 34 can guide and pull the wire rope 33.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A grinding and polishing apparatus for refrigerator metal decorative panels, comprising a processing platform (1), characterized in that, It also includes a grinding device, which is set along the length of the processing platform (1). The grinding device includes two grinding interfaces (2) perpendicular to the processing platform (1). The grinding interfaces (2) rotate in a plane position perpendicular to the processing platform (1). The workpiece contacts the grinding interface (2) for grinding and polishing. The translation mechanism is respectively set on both sides of the grinding equipment and cooperates with the grinding interface (2). The translation mechanism includes a translation plate (3). The translation plate (3) is controlled by the translation drive mechanism to move closer to or away from the grinding interface (2). Multiple workpiece fixing units (4) are evenly arranged on the side of the translation plate (3) closer to the grinding interface (2). The workpiece fixing units (4) can fix the workpiece individually or in concert. The workpiece fixing unit (4) includes a stand (19) and a rotating shaft (20). The translation plate (3) is provided with a bearing (21) with a seat. The translation plate (3) and the processing platform (1) are slidably connected by multiple linear guides (22). The linear guides (22) are perpendicular to the grinding interface (2). The rotating shaft (20) is rotatably connected and placed in the bearing (21). The upper end of the rotating shaft (20) is fixedly provided with a stand (19). The stand (19) is perpendicular to the translation plate (3). The stand (19) is provided with multiple suction cups (23) on the side of the stand (19) near the grinding interface (2). The translation plate (3) is also provided with a rotation control unit that simultaneously drives multiple workpiece fixing units (4) to rotate and grind. The rotating shaft (20) is fixedly provided with a swing arm (24) on the side away from the grinding interface (2). The rotation control unit includes a lever (25), a track groove (26), and an eccentric turntable (27). The lever (25) is simultaneously hinged to the ends of multiple swing arms (24). The lever (25) is provided with a track groove (26). The track groove (26) is perpendicular to the lever (25). The translation plate (3) is rotatably connected to an eccentric turntable (27). The eccentric turntable (27) is provided with an eccentric rod (28). The eccentric rod (28) is placed in the track groove (26). The root of the suction cup (23) is rotatably connected to the stand (19). The suction cup (23) on each stand (19) is controlled by the suction cup (23) control mechanism to rotate synchronously. The rotation of the suction cup (23) is used to control the rotation of the workpiece for grinding. The suction cup (23) control mechanism includes a synchronization disc (29), a synchronization rod (31), and a return spring (30). The suction cup (23) is connected to the synchronization disc (29) inside the frame (19). The frame (19) is also provided with a synchronization rod (31). The synchronization rod (31) is rotatably connected to the eccentric position of multiple synchronization discs (29) inside the frame (19). The upper end of the synchronization rod (31) is connected to the upper end of the frame (19) through the return spring (30). The translation plate (3) is equipped with a traction mechanism that simultaneously pulls multiple synchronous rods (31) to move. The traction mechanism includes a winding shaft (32) and a wire rope (33). The winding shaft (32) is rotatably connected inside the translation plate (3) and is parallel to the center line. The lower end of the synchronous rod (31) is connected to one end of the wire rope (33). The wire rope (33) passes downward through the shaft cavity in the center of the rotating shaft (20) and is guided by the steering wheel (35) and wound on the winding shaft (32). The winding shaft (32) simultaneously winds up the wire rope (33) in multiple uprights (19) on the translation plate (3). The upper end of the shaft cavity is fixedly provided with a flared ring (34) for guiding the wire rope (33). The opening of the flared ring (34) is set upward, and the wire rope (33) passes through the flared ring (34) from top to bottom. The translation drive mechanism is used to simultaneously control the two translation mechanisms to move closer to or further away from the corresponding grinding interface (2). The translation drive mechanism includes a slider (5) that moves along the center line between the two translation plates (3). The upper sides of the slider (5) are connected to the ends of the two translation plates (3) by first connecting rods (6). The two first connecting rods (6) are symmetrically arranged in a figure-eight shape relative to the center line. The sliders (5) on both sides move away from each other and pull the two translation plates (3) closer to the grinding interface (2).

2. The refrigerator metal trim panel grinding and polishing device according to claim 1, characterized in that, The translation drive mechanism also includes a slider (5) drive mechanism disposed on the lower end face of the processing platform (1). The slider (5) drive mechanism includes a parallelogram drive frame (7), a cylinder (8), a second connecting rod (9), a telescopic rod (10), and a guide sleeve (11). The four corner points of the parallelogram drive frame (7) are all hinged. The midpoints of the two sides of the parallelogram drive frame (7) are rotatably connected to two pins (12) arranged along the center line. The pins (12) are fixedly connected to the bottom surface of the processing platform (1). The cylinder (8) is hinged to one corner of the parallelogram drive frame (7) to drive the parallelogram drive frame (7) to deform; the two corners on the diagonal of the parallelogram are respectively hinged to the second connecting rod (9), the other end of the second connecting rod (9) is hinged to the end of the telescopic rod (10), the other end of the telescopic rod (10) is connected to the slider (5), the guide sleeve (11) is fixed on the lower end face of the processing platform (1) and set along the center line direction, and the telescopic rod (10) is placed in the guide sleeve (11) for sliding connection.

3. The refrigerator metal trim panel grinding and polishing device according to claim 1, characterized in that, The grinding equipment includes a sanding belt roller (13), a grinding belt (14), and a support plate (15). The sanding belt roller (13) is set perpendicular to the processing platform (1) along the center line direction. The sanding belt roller (13) is rotatably connected to the processing platform (1). The grinding belt (14) is sleeved on the outside of the two sanding belt rollers (13). The support plate (15) is provided on the inner surface of the grinding belt (14) in the inner space of the grinding belt (14). The support plate (15) and the grinding belt (14) form a grinding interface (2). A driving part is also provided between the two grinding interfaces (2). The driving part is used to drive at least one sanding belt roller (13) to rotate.

4. The refrigerator metal trim panel grinding and polishing device according to claim 3, characterized in that, The drive unit includes a drive motor (16) fixed on the processing platform (1), a driven sprocket is provided on the shaft (20) of the sanding belt roller (13), and the output end of the drive motor (16) is connected to the driven sprocket through a chain (17) and drives the sanding belt roller (13) to rotate; a plurality of support rods (18) are provided between the support plates (15) on both sides.

Images