Double-sided polishing device for coating gasket for lithium battery coating

Abstract

The coating gasket double-face polishing device comprises a supporting frame and a rotary table rotationally arranged on the supporting frame, the rotary table is vertically arranged, a plurality of containing grooves used for containing gaskets are formed in the rotary table in the circumferential direction of the rotary table, and a feeding assembly used for feeding the gaskets into the containing grooves is arranged on the side face of the rotary table; a first adsorption plate and a second adsorption plate are slidably arranged on the two sides of the containing groove correspondingly, adsorption holes for adsorbing the gaskets are formed in the first adsorption plate and the second adsorption plate correspondingly, and polishing machines for polishing the surfaces of the gaskets are arranged on the two side faces of the rotary table correspondingly. The first adsorption plate and the second adsorption plate alternately adsorb the gaskets in the process of rotating along with the rotary table. The problems that in the equipment operation process, manual intervention is needed, the automation degree is low, the polishing efficiency is low, and the safety of workers cannot be guaranteed in the equipment polishing process are solved.

Description

Technical Field

[0001] The invention relates to the technical field of coating gasket processing, in particular to a double-sided polishing device for coating a lithium battery. Background Art

[0002] Coating is a technology that coats a material on the surface of another material. In the process of lithium battery manufacturing, coating technology is mainly used to coat the active materials of the positive and negative electrodes. These active materials are used to store and release lithium ions. Therefore, the coating process plays a vital role in battery performance and safety. The coating gasket can prevent the leakage of media such as water, gas, liquid, etc. during the coating process to ensure the normal operation of the equipment.

[0003] A Chinese invention patent with application publication number CN112008584A discloses a gasket polishing device for hardware tool processing, including: a base, with mounting frames connected to both sides of its top, and a slide plate slidably connected to the mounting frames; a first fixed frame, which is connected to the top of the base between the mounting frames on both sides; a transposition component, which is arranged between the mounting frame, the base and the slide plate; a rotating component, which is arranged between the first fixed frame, the base and the slide plate. The present invention polishes the gasket by cooperating with the transposition component, the rotating component and the polishing component, thereby achieving the effect of polishing the gasket. A Chinese utility model patent with application publication number CN208507866U discloses a lithium battery coating gasket, including a long side plate, an intermediate plate arranged on the long side plate, and short side plates arranged on both sides of the intermediate plate and located at both ends of the long side plate. The gasket also includes side plates arranged in an enclosed space formed by the long side plate and the intermediate plate, the short side plate and the inner sides of the bent ends of the short side plates, and the side plates are provided with a first guide structure. When the gasket of the utility model is installed inside the extrusion head, it can make the slurry fluidity in the feed cavity more active, avoid the slurry from not flowing for a long time and causing precipitation or gelation, thereby improving the coating weight consistency and particle scratch problems.

[0004] However, the inventors found that the equipment has the following problems: the gasket needs to be polished on both sides to prevent the end surface from being uneven, which will cause uneven liquid flow; the existing polishing process requires manual intervention, the degree of automation is not high, the polishing efficiency is low, and the safety of workers during equipment polishing cannot be guaranteed. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and to invent a double-sided polishing device for coating a coating gasket for lithium battery coating, comprising a support frame and a turntable rotatably arranged on the support frame, a plurality of placement slots being provided on the turntable, a first adsorption plate and a second adsorption plate being slidably arranged on both sides of the placement slots, a polishing machine being arranged on the side of the turntable, and the first adsorption plate and the second adsorption plate being continuously switched during the rotation of the turntable to switch the leakage surface of the gasket, so that both sides of the gasket are polished by the polishing machine, which solves the problems of manual intervention required during the operation of the equipment, low degree of automation, low polishing efficiency, and lack of guarantee of workers' safety during equipment polishing.

[0006] In response to the above technical problems, the technical solution adopted by the present invention is as follows: a double-sided polishing device for a coating gasket for lithium battery coating, comprising a support frame and a turntable rotatably arranged on the support frame, the turntable is vertically arranged, and a plurality of placement grooves for placing gaskets are opened along its circumferential direction, a loading assembly for feeding gaskets into the placement grooves is arranged on the side of the turntable, a first adsorption plate and a second adsorption plate are slidably arranged on both sides of the placement grooves, adsorption holes for adsorbing the gaskets are arranged in the first adsorption plate and the second adsorption plate, polishing machines for polishing the gasket surface are arranged on both sides of the turntable, and the first adsorption plate and the second adsorption plate alternately adsorb the gaskets during the rotation of the turntable.

[0007] As a preferred embodiment, the loading assembly includes a loading frame and a push plate slidably arranged in the loading frame, a nut is arranged on the push plate, a slide groove is provided in the loading frame, a threaded rod is rotatably arranged in the slide groove, the nut is slidably arranged in the slide groove and engages with the threaded rod, a discharge port and a feed port are provided on the end face of the loading frame, side panels are provided at both ends of the discharge port, a rotating shaft is rotatably arranged between the side panels on both sides, a conveyor belt is sleeved between the rotating shafts, and a servo motor for driving the threaded rod to rotate is provided on the side of the loading frame.

[0008] Preferably, the first adsorption plate and the second adsorption plate are respectively slidably arranged on both sides of the placement groove, and sliding rods are slidably arranged on the sides of the first adsorption plate and the second adsorption plate, and a sliding rail is arranged on the support frame, and the sliding rod is clamped on the surface of the sliding rail.

[0009] Preferably, air pipes are provided on the sides of the first adsorption plate and the second adsorption plate, a rotating sleeve is rotatably provided on the support frame, a plurality of connecting pipes are provided on the surface of the rotating sleeve, the air pipe sleeve is provided in the connecting pipe, a cavity a is provided on the contact surface between the rotating sleeve and the support frame, a cavity b and an air path communicating with the cavity b are provided in the support frame, an air hole communicating with the cavity b is opened on the rotating shaft of the turntable, and an air pump connected with the rotating shaft of the turntable is provided on the side of the support frame.

[0010] As a preference, the conveyor belt has a rough surface.

[0011] As a preference, the conveyor belt is in contact with the discharge port, and a motor for driving the conveyor belt to rotate is disposed on the side surface of the side plate.

[0012] As a preference, a stop rod is arranged above the nut.

[0013] As a preference, a driving motor is provided on the supporting frame, and a belt is sleeved between the driving motor and the rotating shaft of the turntable.

[0014] Beneficial effects of the present invention:

[0015] 1. The push plate and the spring can keep the gasket in the loading frame at the discharge port at all times. The discharge port opening is set to be consistent with the thickness of the gasket. The friction of the conveyor belt moves the gasket from the loading frame to the placement slot of the turntable, replacing manual loading, reducing labor costs and improving safety.

[0016] 2. The vacuum is pumped out through the air pump, and the air holes and cavity b arranged on the rotating shaft of the turntable can be used to evacuate the rotating sleeve during the rotation process. The rotating sleeve evacuates the first adsorption plate and the second adsorption plate through the connecting pipe and the air pipe, so that the adsorption holes generate suction to adsorb and fix the gasket, preventing the gasket from slipping during the polishing process and improving the stability of the device.

[0017] 3. When the first adsorption plate and the second adsorption plate rotate with the turntable, the first adsorption plate descends while the second adsorption plate rises under the action of the slide rail, and vice versa, the second adsorption plate descends while the first adsorption plate rises, so that the first adsorption plate and the second adsorption plate are switched alternately, so that both sides of the gasket leak out in turn, so that the polishing machine can polish both sides of the gasket and improve the polishing efficiency.

[0018] In summary, the equipment has the advantages of no need for manual intervention, high stability, good polishing efficiency, etc., and is particularly suitable for the field of coated gasket processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a double-sided polishing device for coating a lithium battery pad;

[0021] Figure 2A side view of a double-sided polishing device for coating a coating pad for lithium battery coating;

[0022] Figure 3 It is a structural schematic diagram of a feeding assembly of a double-sided polishing device for coating a coating pad for lithium battery coating;

[0023] Figure 4 A cross-sectional view of a feeding assembly of a double-sided polishing device for coating a coating pad for lithium battery coating;

[0024] Figure 5 It is a partial structural schematic diagram of a double-sided polishing device for coating a lithium battery;

[0025] Figure 6 for Figure 4 A partial enlarged view of the middle A;

[0026] Figure 7 A working state diagram of a double-sided polishing device for coating a lithium battery pad;

[0027] Figure 8 This is a diagram of the working state of a double-sided polishing device for coating pads for lithium battery coating under negative pressure.

[0028] The attached drawings are marked as follows: 1. Support frame; 2. Turntable; 3. Placement slot; 4. Loading assembly; 5. First adsorption plate; 6. Second adsorption plate; 7. Adsorption hole; 8. Polishing machine; 21. Loading frame; 22. Nut; 23. Slide groove; 24. Threaded rod; 25. Discharge port; 26. Side panel; 27. Rotating shaft; 28. Conveyor belt; 29. ​​Pushing plate; 30. Feeding port; 32. Slide rod; 33. Slide rail; 41. Air pipe; 42. Rotating sleeve; 43. Connecting pipe; 44. Cavity a; 45. Cavity b; 46. Air path; 47. Air hole; 48. Vacuum pump; 71. Motor, 72. Gear lever; 81. Driving motor; 82. Belt. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings.

[0030] Embodiment 1

[0031] like Figures 1 to 8As shown, a double-sided polishing device for coating a coating gasket for lithium battery coating comprises a support frame 1 and a turntable 2 rotatably arranged on the support frame 1, wherein the turntable 2 is arranged vertically, and a plurality of placement grooves 3 for placing gaskets are opened along the circumferential direction of the turntable 2, and a loading assembly 4 for feeding the gasket into the placement groove 3 is arranged on the side of the turntable 2, and a first adsorption plate 5 and a second adsorption plate 6 are slidingly arranged on both sides of the placement groove 3, and adsorption holes 7 for adsorbing the gasket are arranged in the first adsorption plate 5 and the second adsorption plate 6, and polishing machines 8 for polishing the surface of the gasket are arranged on both sides of the turntable 2, and the first adsorption plate 5 and the second adsorption plate 6 alternately adsorb the gasket during the rotation of the turntable 2.

[0032] like Figure 3 , Figure 4 , Figure 6 As shown, the loading assembly 4 includes a loading frame 21 and a push plate 29 slidably arranged in the loading frame 21, a nut 22 is arranged on the push plate 29, a slide groove 23 is provided in the loading frame 21, a threaded rod 24 is rotatably arranged in the slide groove 23, the nut 22 is slidably arranged in the slide groove 23 and meshes with the threaded rod 24, a discharge port 25 and an inlet 30 are provided on the end surface of the loading frame 21, side panels 26 are provided at both ends of the discharge port 25, a rotating shaft 27 is rotatably arranged between the side panels 26 on both sides, a conveying belt 28 is sleeved between the rotating shafts 27, and a servo motor for driving the threaded rod 24 to rotate is provided on the side of the loading frame 21.

[0033] It is worth mentioning here that when the servo motor drives the threaded rod 24 to rotate forward, the push plate 29 moves forward to push the gasket to the discharge port 25. When the gasket in the loading frame 21 is used up, the servo motor reverses to drive the push plate 29 to reset. At this time, the gasket is manually added from the feed port 30.

[0034] like Figure 5 As shown, the first adsorption plate 5 and the second adsorption plate 6 are respectively slidably arranged on both sides of the placement groove 3, and the sides of the first adsorption plate 5 and the second adsorption plate 6 are both slidably arranged with sliding rods 32, and the support frame 1 is provided with a sliding rail 33, and the sliding rod 32 is clamped on the surface of the sliding rail 33.

[0035] It is worth mentioning here that the first adsorption plate 5 and the second adsorption plate 6 can be switched back and forth by the slide rail 33, so that the two side surfaces of the gasket can be polished by the polishing machine.

[0036] like Figure 1 , Figure 2 , Figure 8As shown, air pipes 41 are provided on the sides of the first adsorption plate 5 and the second adsorption plate 6, a rotating sleeve 42 is rotatably provided on the support frame 1, a plurality of connecting pipes 43 are provided on the surface of the rotating sleeve 42, the air pipe 41 is sleeved in the connecting pipe 43, a cavity a44 is provided on the contact surface between the rotating sleeve 42 and the support frame 1, a cavity b45 and an air path 46 communicating with the cavity b45 are provided in the support frame 1, an air hole 47 communicating with the cavity b45 is opened on the rotating shaft of the turntable 1, and an air pump 48 connected with the rotating shaft of the turntable 1 is provided on the side of the support frame 1.

[0037] It is worth mentioning here that when the vacuum pump 48 is working, negative pressure is generated through the cavity a44, so that the rotating sleeve 42 that rotates with the turntable 2 always maintains negative pressure during the rotation process, so that the adsorption hole 7 generates suction to adsorb and fix the gasket, preventing the gasket from slipping during the polishing process, thereby improving the stability of the device. It is also worth mentioning that an air valve is provided on the air pipe 41 and a sensor is provided on the turntable. When the air pipe 41 starts to descend under the action of the slide rail 33, the air valve is closed through the sensor, so that the corresponding air pipe 41 is no longer under negative pressure.

[0038] The surface of the conveyor belt 28 is rough.

[0039] It is worth mentioning that by setting the surface of the conveyor belt 28 to be rough, the gasket in the loading frame 21 can be pushed into the placement groove 3 by the friction force of the conveyor belt 28 .

[0040] like Figure 1 , Figure 3 As shown, the conveyor belt 28 is in contact with the discharge port 25 , and a motor 71 for driving the conveyor belt 28 to rotate is disposed on the side of the side plate 26 .

[0041] like Figure 4 As shown, a stop rod 72 is arranged above the nut 22 .

[0042] It is worth mentioning that, by providing the stop rod 72 , the nut 22 can be prevented from being deflected during the process in which the threaded rod 24 rotates and drives the nut 22 to move.

[0043] like Figure 1 The support frame 1 is provided with a driving motor 81 , and a belt 82 is sleeved between the driving motor 81 and the rotating shaft of the turntable 1 .

[0044] The working process is as follows:

[0045] After the worker places a number of gaskets in the loading frame 21, the conveyor belt 28 is driven by the motor 71 to rotate and transport the gaskets from the discharge port 25 to the placement slot 3. At this time, the first adsorption plate 5 is in a retracted state, the second adsorption plate 6 is extended, and the turntable 2 starts to rotate to drive the gasket to move. The vacuum pump generates negative pressure in the cavity of the rotating shaft of the turntable 2, and generates negative pressure in the support column 1 through the air hole 47 and the cavity b45. Then, the rotating sleeve 42 still generates negative pressure during the rotation process through the cavity a44, and generates negative pressure on the second adsorption plate 6 through the connecting pipe 43 and the air pipe 41, so that the gasket is adsorbed and fixed by the second adsorption plate 6, and the gasket is polished when it is transferred to the polishing machine 8;

[0046] After one side of the gasket is polished, the turntable 2 continues to rotate. During the rotation, the air pump stops the second adsorption plate 6 from being adsorbed. Under the action of the slide rail 33, the slide rod 32 extends the first adsorption plate 5 while the second adsorption plate 6 retracts, and the air pump adsorbs the first adsorption plate 5, thereby switching the exposed surface of the gasket. When it is transferred to another polishing machine 8, the other side of the gasket is polished by the polishing machine 8. After polishing is completed, when the gasket is transferred to the bottom, the air pump stops the first adsorption plate 5 from being adsorbed, and the gasket falls under the action of gravity, and then transfers to the loading component 4 for the next polishing cycle.

[0047] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "front and back", "left and right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the invention.

[0048] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical prompts of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A double-sided polishing device for coating a lithium battery coating pad, comprising a support frame (1) and a turntable (2) rotatably arranged on the support frame (1), characterized in that: The turntable (2) is arranged vertically, and a plurality of placement grooves (3) for placing gaskets are provided along the circumferential direction of the turntable (2). A loading assembly (4) for feeding the gaskets into the placement grooves (3) is arranged on the side of the turntable (2). A first adsorption plate (5) and a second adsorption plate (6) are slidingly arranged on both sides of the placement grooves (3), and adsorption holes (7) for adsorbing the gaskets are arranged in the first adsorption plate (5) and the second adsorption plate (6). Polishing machines (8) for polishing the surface of the gaskets are arranged on both sides of the turntable (2), and the first adsorption plate (5) and the second adsorption plate (6) adsorb the gaskets alternately during the rotation of the turntable (2).

2. A double-sided polishing device for coating a lithium battery according to claim 1, characterized in that: The feeding assembly (4) comprises a feeding frame (21) and a pushing plate (29) slidably arranged in the feeding frame (21), a nut (22) being arranged on the pushing plate (29), a sliding groove (23) being provided in the feeding frame (21), a threaded rod (24) being rotatably arranged in the sliding groove (23), the nut (22) being slidably arranged in the sliding groove (23) and meshing with the threaded rod (24), a discharge port (25) and a feed port (30) being provided on the end surface of the feeding frame (21), side plates (26) being provided at both ends of the discharge port (25), a rotating shaft (27) being rotatably arranged between the side plates (26) at both sides, a conveying belt (28) being sleeved between the rotating shafts (27), and a servo motor for driving the threaded rod (24) to rotate is provided on the side surface of the feeding frame (21).

3. A double-sided polishing device for coating a lithium battery according to claim 1, characterized in that: The first adsorption plate (5) and the second adsorption plate (6) are respectively slidably arranged on both sides of the placement groove (3); the sides of the first adsorption plate (5) and the second adsorption plate (6) are both slidably arranged with sliding rods (32); a sliding rail (33) is arranged on the support frame (1); and the sliding rod (32) is clamped on the surface of the sliding rail (33).

4. A double-sided polishing device for coating a lithium battery according to claim 1, characterized in that: The first adsorption plate (5) and the second adsorption plate (6) are both provided with air pipes (41) on their sides; a rotating sleeve (42) is rotatably provided on the support frame (1); a plurality of connecting pipes (43) are provided on the surface of the rotating sleeve (42); the air pipe (41) is sleeved in the connecting pipes (43); a cavity a (44) is provided on the contact surface between the rotating sleeve (42) and the support frame (1); a cavity b (45) and an air path (46) communicating with the cavity b (45) are provided in the support frame (1); an air hole (47) communicating with the cavity b (45) is provided on the rotating shaft of the turntable (1); and an air pump (48) connected to the rotating shaft of the turntable (1) is provided on the side of the support frame (1).

5. A double-sided polishing device for coating a lithium battery according to claim 1, characterized in that: The surface of the conveying belt (28) is rough.

6. A double-sided polishing device for coating a lithium battery according to claim 2, characterized in that: The conveying belt (28) is in close contact with the discharge port (25), and a motor (71) for driving the conveying belt (28) to rotate is arranged on the side of the side plate (26).

7. A double-sided polishing device for coating a lithium battery according to claim 2, characterized in that: A stop rod (72) is arranged above the nut (22).

8. A double-sided polishing device for coating a lithium battery according to claim 1, characterized in that: The support frame (1) is provided with a driving motor (81), and a belt (82) is sleeved between the driving motor (81) and the rotating shaft of the turntable (1).

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