Roller passing mechanism and pole piece processing equipment

Abstract

The utility model discloses a roller passing mechanism and pole piece processing equipment, and belongs to the technical field of battery manufacturing, and the roller passing mechanism comprises a roller, a main shaft device, a vacuum device and a driving device. The roller is provided with a containing cavity and a plurality of air suction holes communicating with the containing cavity. The main shaft device penetrates through the containing cavity and is rotationally connected with the roller. The vacuum device is arranged in the containing cavity and connected with the main shaft device, the vacuum device is provided with a vacuum cavity, and the vacuum cavity is communicated with at least part of the air suction holes. The driving device is connected with the vacuum device and used for driving the vacuum device to move along the main shaft device. And the vacuum cavity of the vacuum device can adsorb the tab of the pole piece to the periphery of the roller through the air suction holes of the roller, so that the tab is prevented from being folded. The driving device can control the vacuum device to move in the extending direction of the main shaft device, and the adsorption position of the vacuum cavity is adjusted so that the roller passing mechanism can be matched with pole pieces of different sizes. In addition, the vacuum cavity is miniaturized, so that the vacuum cavity is communicated with part of the air suction holes, and vacuum waste can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of battery manufacturing, and specifically relates to a roller mechanism and pole piece processing equipment. Background Art

[0002] The over-roll structure adsorbs the pole piece's tabs onto the rollers through a vacuum device to prevent the tabs from folding during the tape conveying process. At present, conventional over-roll mechanisms cannot fully adapt to the position of the tabs, and usually the entire width has adsorption force. When the position of the tabs changes, the position of the vacuum adsorption chamber cannot be adjusted. In related technologies, in order to be compatible with pole pieces of different sizes, the vacuum adsorption chamber is designed to be larger, while the effective adsorption position is smaller, resulting in vacuum loss. Utility Model Content

[0003] Purpose of the utility model: The embodiments of the present application provide a roller mechanism and pole piece processing equipment, aiming to solve the technical problems that the roller mechanism is not compatible with pole pieces of different sizes and has a lot of vacuum loss.

[0004] Technical solution: The embodiment of the present application provides a roller mechanism, including:

[0005] A roller, wherein the roller is provided with a receiving cavity and a plurality of air suction holes connected with the receiving cavity;

[0006] A main shaft device is inserted into the accommodating cavity and is rotatably connected to the roller;

[0007] A vacuum device is arranged in the accommodating cavity and connected to the spindle device, wherein the vacuum device is provided with a vacuum cavity, and the vacuum cavity is connected to at least part of the suction holes;

[0008] The driving device is connected to the vacuum device, and is used for driving the vacuum device to move along the main axis device.

[0009] In some embodiments, the drive device comprises:

[0010] A driving part, arranged outside the accommodating cavity;

[0011] A rotating part connected to the driving part, at least a part of the rotating part is disposed in the accommodating cavity and connected to the vacuum device;

[0012] The driving part is used to drive the rotating part to rotate, so as to drive the vacuum device to move along the main axis device.

[0013] In some embodiments, there are multiple vacuum devices, which are arranged at intervals along the first direction and are respectively connected to the rotating part; when the rotating part rotates, at least two vacuum devices move in opposite directions, and the first direction is the extension direction of the main axis device.

[0014] In some embodiments, the driving device further comprises:

[0015] The support seat is arranged in the accommodating cavity and connected to the main shaft device, and the rotating part is rotatably connected to the support seat.

[0016] In some embodiments, there are multiple support seats, and at least one vacuum device is disposed between two adjacent support seats.

[0017] In some embodiments, the spindle device includes a spindle body and a bearing connected to each other, the spindle body extends along a first direction, and the roller is rotatably connected to the bearing;

[0018] There are multiple vacuum devices, which are movably connected to the main shaft body and are arranged at intervals along the first direction.

[0019] In some embodiments, a bearing is disposed between two adjacent vacuum devices.

[0020] In some embodiments, there are multiple bearings, and at least one vacuum device is provided between two adjacent bearings.

[0021] In some embodiments, the rotating part is a screw threadedly connected to the vacuum device.

[0022] In some embodiments, the rotating part is a ball screw.

[0023] In some embodiments, the roller includes an inner wall, which encloses a containing cavity, and the roller mechanism includes a sealing member, which is located between the inner wall and the vacuum device and connected to the vacuum device.

[0024] In some embodiments, the vacuum device is provided with an air suction interface connected to the vacuum chamber, and the air suction interface is used for the vacuum device to extract air in the vacuum chamber.

[0025] Correspondingly, an embodiment of the present application provides a pole piece processing device, including the above-mentioned roller mechanism.

[0026] Beneficial effects: The roller mechanism of the embodiment of the present application includes a roller, a spindle device, a vacuum device and a driving device. The roller is provided with a receiving cavity and a plurality of suction holes connected to the receiving cavity; the spindle device is inserted into the receiving cavity and is rotatably connected to the roller. The vacuum device is arranged in the receiving cavity and is connected to the spindle device. The vacuum device is provided with a vacuum cavity, and the vacuum cavity is connected to at least part of the suction holes. The driving device is connected to the vacuum device, and the driving device is used to drive the vacuum device to move along the spindle device. The vacuum cavity of the vacuum device can adsorb the pole ear of the pole piece to the outer periphery of the roller through the suction hole of the roller to prevent the pole ear from folding during the pole piece walking process. The driving device can control the vacuum device to move along the extension direction of the spindle device, and adjust the adsorption position of the vacuum cavity so that the roller mechanism of the present application can match pole pieces of different sizes and improve the yield rate of the pole piece. In addition, by miniaturizing the vacuum cavity and connecting the vacuum cavity with part of the suction holes, vacuum waste can be reduced.

[0027] The pole piece processing equipment of the embodiment of the present application includes the above-mentioned roller mechanism, so the pole piece processing equipment can have all the technical features and beneficial effects of the above-mentioned roller mechanism, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of the first roller mechanism of the embodiment of the present application;

[0030] Figure 2 is a structural schematic diagram of a second roller mechanism in an embodiment of the present application;

[0031] Figure 3 is a structural schematic diagram of a third roller mechanism in an embodiment of the present application;

[0032] Figure 4 is a structural schematic diagram of a fourth roller mechanism of an embodiment of the present application;

[0033] Figure 5 It is a structural schematic diagram of a pole piece processing equipment according to an embodiment of the present application.

[0034] Figure numerals: 1, roller; 2, spindle device; 3, vacuum device; 4, driving device; 5, pole piece; 6, sealing member; 10, accommodating chamber; 11, suction hole; 12, inner wall; 20, spindle body; 21, bearing; 30, vacuum chamber; 31, suction interface; 40, driving unit; 41, rotating unit; 42, supporting seat; 50, pole ear; 100, roller mechanism; 200, unwinding mechanism; 300, deviation correction mechanism; 400, laser die-cutting mechanism; 500, slitting mechanism; 600, winding mechanism; X, first direction. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0037] The over-roll structure adsorbs the pole piece's pole lug onto the roller through a vacuum device to prevent the pole piece's pole lug from folding during the tape conveying process. At present, conventional over-roll mechanisms cannot fully adapt to the pole lug position, and usually the entire width has adsorption force. When the position of the pole lug changes, the position of the vacuum adsorption chamber cannot be adjusted. In related technologies, in order to be compatible with pole pieces of different sizes, the vacuum adsorption chamber is designed to be larger, while the effective adsorption position is smaller, resulting in vacuum waste and high energy consumption.

[0038] In view of this, the roller mechanism of the embodiment of the present application includes a roller, a spindle device, a vacuum device and a driving device. The roller is provided with a receiving cavity and a plurality of suction holes connected to the receiving cavity. The spindle device is inserted into the receiving cavity and is rotatably connected to the roller. The vacuum device is arranged in the receiving cavity and is connected to the spindle device. The vacuum device is provided with a vacuum cavity, and the vacuum cavity is connected to at least part of the suction holes. The driving device is connected to the vacuum device, and the driving device is used to drive the vacuum device to move along the spindle device. The vacuum cavity of the vacuum device can adsorb the pole ear of the pole piece to the outer periphery of the roller through the suction hole of the roller to prevent the pole ear from folding during the pole piece walking process. The driving device can control the vacuum device to move along the extension direction of the spindle device, and adjust the adsorption position of the vacuum cavity so that the roller mechanism of the present application can match pole pieces of different sizes, thereby improving the yield rate of the pole piece. In addition, by miniaturizing the vacuum cavity and connecting the vacuum cavity with part of the suction holes, vacuum waste can be reduced, energy saving and consumption reduction can be achieved.

[0039] The roller mechanism and the pole piece processing equipment of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0040] Figure 1 1 is a schematic structural diagram of a first roller mechanism 100 according to an embodiment of the present application; Figure 2 is a structural schematic diagram of a second roller mechanism 100 according to an embodiment of the present application; Figure 3 1 is a schematic structural diagram of a third roller mechanism 100 according to an embodiment of the present application; Figure 4 1 is a schematic structural diagram of a fourth roller mechanism 100 according to an embodiment of the present application; Figure 5 It is a structural schematic diagram of a pole piece 5 processing device according to an embodiment of the present application.

[0041] refer to Figures 1 to 4The embodiment of the present application provides a roller mechanism 100, which includes a roller 1, a spindle device 2, a vacuum device 3 and a driving device 4. The roller 1 is provided with a receiving chamber 10 and a plurality of suction holes 11 connected to the receiving chamber 10. The pole piece 5 is turned to the tape through the roller 1 after the pole ear 50 is cut and formed. The spindle device 2 is inserted into the receiving chamber 10 and is rotatably connected to the roller 1. The vacuum device 3 is arranged in the receiving chamber 10 and is connected to the spindle device 2. The vacuum device 3 is provided with a vacuum chamber 30, and the vacuum chamber 30 is connected to at least part of the suction holes 11. The driving device 4 is connected to the vacuum device 3, and the driving device 4 is used to drive the vacuum device 3 to move along the spindle device 2. The vacuum chamber 30 of the vacuum device 3 can adsorb the pole ear 50 of the pole piece 5 to the outer periphery of the roller 1 through the suction holes 11 of the roller 1 to prevent the pole ear 50 from folding during the tape running of the pole piece 5. The driving device 4 can control the vacuum device 3 to move along the extension direction of the spindle device 2, and adjust the adsorption position of the vacuum chamber 30 so that the roller mechanism 100 of the present application can match the pole pieces 5 of different sizes, thereby improving the yield rate of the pole pieces 5. In addition, by miniaturizing the vacuum chamber 30 and connecting the vacuum chamber 30 with part of the air suction holes 11, vacuum waste can be reduced, thereby achieving the effect of energy saving and consumption reduction.

[0042] In some embodiments, the driving device 4 includes a driving part 40 and a rotating part 41. The driving part 40 is arranged outside the accommodating chamber 10. The rotating part 41 is connected to the driving part 40, and at least part of the rotating part 41 is arranged in the accommodating chamber 10 and connected to the vacuum device 3. The driving part 40 is used to drive the rotating part 41 to rotate, so as to drive the vacuum device 3 to move along the spindle device 2. In some embodiments, the driving part 40 is a holding structure, which is convenient for the operator to manually operate to drive the rotating part 41 to rotate, so that the vacuum device 3 connected to the rotating part 41 moves along the extension direction of the spindle device 2, and the roller mechanism 100 of the present application can match the pole pieces 5 of different sizes by adjusting the adsorption position of the vacuum chamber 30, thereby improving the yield rate of the pole piece 5. In other embodiments, the driving part 40 is a driving motor. In the embodiments of the present application, the driving motor can be a servo motor or a stepping motor. Specifically, a displacement sensor or an encoder is set on the rotating part 41, and the sensor or encoder is used to monitor the position of the vacuum chamber 30 of the vacuum device 3 in real time. The position of the vacuum chamber 30 monitored in real time is sent to the controller. The controller is connected to the driving part 40 , and controls the driving part 40 and the rotating part 41 connected to the driving part 40 to rotate according to the received position signal, thereby achieving automatic adjustment, and adjusting the accuracy and stability of the adsorption position of the vacuum chamber 30 .

[0043] In some embodiments, there are multiple vacuum devices 3, which are arranged in a first direction X and connected to the rotating part 41 respectively. When the rotating part 41 rotates, at least two vacuum devices 3 move in opposite directions, and the first direction X is the extension direction of the spindle device 2. Figure 3 and Figure 4 In the illustrated embodiment, there are two vacuum devices 3, which are arranged at intervals along the first direction X. The rotating portion 41 is rotated to drive the two vacuum devices 3 to move toward or away from the center line of the spindle device 2 along the first direction X to adjust the centering position of the vacuum chamber 30. In this way, the adsorption position of the vacuum chamber 30 can match pole pieces 5 of different sizes to prevent the pole ears 50 from folding.

[0044] In some embodiments, the rotating part 41 is a centering screw, and the rotating part 41 is threadedly connected to the vacuum device 3. The centering screw is arranged parallel to the extension direction of the spindle device 2 and penetrates the vacuum device 3, and the connection between the centering screw and the vacuum device 3 is threaded to convert the rotational motion of the centering screw into the linear motion of the vacuum device 3. Furthermore, a nut can be provided at the connection between the vacuum device 3 and the centering screw to cooperate with the centering screw for transmission, thereby further improving the transmission efficiency, and improving the stability and accuracy of the transmission.

[0045] In other embodiments, the rotating part 41 is a ball screw. The ball screw is arranged parallel to the extension direction of the spindle device 2 and penetrates the vacuum device 3. The ball screw, the ball nut and the vacuum device 3 cooperate to convert the rotational motion of the ball screw into the linear motion of the vacuum device 3. The use of the ball screw for cooperative transmission has higher transmission efficiency and accuracy and lower friction loss.

[0046] In some embodiments, the spindle device 2 includes a spindle body 20 and a bearing 21 connected to each other, the spindle body 20 extends along the first direction X, and the roller 1 is rotatably connected to the bearing 21. There are multiple vacuum devices 3, and the multiple vacuum devices 3 can be movably connected to the spindle body 20 and are arranged at intervals along the first direction X. By setting the bearing 21, the roller 1 can be rotated along with the pole piece 5, while the spindle body 20, the vacuum device 3 and the driving device 4 in the roller 1 do not move with the rotation of the roller 1, thereby avoiding the displacement of the adsorption position of the vacuum chamber 30 and affecting the adsorption effect on the pole ear 50. In addition, the bearing 21 can play a supporting role to prevent the roller 1 from deforming.

[0047] In some embodiments, the bearing 21 is disposed between two adjacent vacuum devices 3. Figure 3In the illustrated embodiment, two bearings 21 are provided between the two vacuum devices 3, and the two bearings 21 are spaced apart along the first direction X. In this way, the load on the roller 1 can be evenly distributed to the two bearings 21, thereby reducing the stress of the bearings 21 and extending the service life of the bearings 21. In addition, dispersing the load can also prevent the roller 1 from being deformed and improve the operating stability of the roller mechanism 100.

[0048] In other embodiments, there are multiple bearings 21, and at least one vacuum device 3 is disposed between two adjacent bearings 21. Figure 4 In the illustrated embodiment, two vacuum devices 3 are provided between the two bearings 21, and the two vacuum devices 3 are arranged at intervals along the first direction X. In this way, the load on the roller 1 can be evenly distributed to the two bearings 21, reducing the stress of the bearings 21 and extending the service life of the bearings 21. In addition, dispersing the load can also prevent the roller 1 from deforming and improve the operating stability of the roller mechanism 100.

[0049] In some embodiments, the driving device 4 further includes a support seat 42, which is disposed in the accommodating cavity 10 and connected to the spindle device 2, and the rotating portion 41 is rotatably connected to the support seat 42. The rotating portion 41 is disposed through the support seat 42 and is rotatably connected to the support seat 42, and the support seat 42 is used to provide support and guidance for the rotating portion 41, to prevent the rotating portion 41 from axially offsetting and to prevent the rotating portion 41 from deforming under load, thereby enhancing the rigidity and stability of the driving device 4.

[0050] In some embodiments, there are multiple support seats 42, and at least one vacuum device 3 is disposed between two adjacent support seats 42. By providing multiple support seats 42, the load of the rotating part 41 can be evenly distributed to the multiple support seats 42. Figure 3 In the embodiment shown, two vacuum devices 3 are arranged between two support seats 42, and two bearings 21 are arranged between the two vacuum devices 3. In this way, the support seats 42 can reduce the deviation or tilt of the rotating part 41, thereby improving the stability of the driving device 4.

[0051] exist Figure 3 and Figure 4 In the illustrated embodiment, the vacuum device 3 is provided with a suction interface 31 connected to the vacuum chamber 30, and the suction interface 31 is used for the vacuum device to extract the air in the vacuum chamber 30. The vacuum device includes a vacuum pipe, which is connected to the suction interface 31 and penetrates the support seat 42 and the bearing 21. The air in the vacuum chamber 30 is extracted through the vacuum pipe and the suction interface 31, so that negative pressure can be formed to adsorb the pole ear 50 to the outer periphery of the roller 1 through the suction hole 11.

[0052] In other embodiments, the main shaft body 20 is a hollow structure, and the suction interface 31 provided on the vacuum device 3 is connected to the hollow structure. The vacuum device is connected to the main shaft body 20 and extracts the air in the vacuum chamber 30 through the hollow structure and the suction interface 31, so that a negative pressure can be formed to adsorb the pole ear 50 to the periphery of the roller 1 through the suction hole 11, or the air pressure in the vacuum chamber 30 is lower than the air pressure outside the roller 1. Since the external air pressure is higher than the air pressure of the vacuum chamber 30, when the pole piece is conveyed on the roller 1 to the corresponding part of the vacuum chamber 30, the pole ear 50 blocks the suction hole 1 of the roller 1, so there is an atmospheric pressure difference, and the pole ear 50 is adsorbed on the periphery of the roller 1.

[0053] In some embodiments, the vacuum device 3 includes a regulating valve, through which the vacuum degree in the vacuum chamber 30 can be controlled, thereby adjusting the adsorption strength of the tab 50. According to actual needs, the contact between the tab 50 and the roller 1 can be improved by increasing or decreasing the pressure in the vacuum chamber 30 to obtain a better adsorption effect. This can avoid the tab 50 folding problem caused by too small an adsorption strength, and the tab 50 tearing problem caused by too large an adsorption strength.

[0054] In some embodiments, the roller 1 includes an inner wall 12, which encloses a accommodating cavity 10. The dimensions of the vacuum device 3 and the roller 1 are such that the gap between the vacuum device 3 and the inner wall 12 is less than or equal to 0.01 mm, thereby reducing vacuum leakage and improving the adsorption effect on the pole ear 50.

[0055] In some embodiments, the roller 1 includes an inner wall 12, the inner wall 12 encloses the accommodating cavity 10, and the roller mechanism 100 includes a seal, which is located between the inner wall 12 and the vacuum device 3 and connected to the vacuum device 3. By providing the seal, the gap between the vacuum device 3 and the inner wall 12 can be reduced, thereby reducing vacuum leakage and improving the adsorption effect on the tab 50.

[0056] The embodiment of the present application provides a pole piece processing device, including the above-mentioned roller mechanism 100. The pole piece processing device includes an unwinding mechanism 200, a deviation correction mechanism 300, a laser die-cutting mechanism 400, a slitting mechanism 500 and a winding mechanism 600. The following is a further description of the functions of each component:

[0057] The unwinding mechanism 200 is used to unwind the coil, transfer the pole piece 5 to be processed to the downstream mechanism, and provide stable tension and appropriate coil guidance.

[0058] The deflection correction mechanism 300 is used to adjust the position of the electrode piece 5 to be processed to eliminate the offset and distortion of the electrode piece 5 to be processed during the unwinding process. By shifting, rotating or other adjustment methods of the rollers of the deflection correction mechanism 300, the electrode piece 5 to be processed can be kept flat and centered for accurate processing and handling in subsequent steps.

[0059] The laser die-cutting mechanism 400 is used to cut the electrode piece 5 to be processed, so as to form a pole ear 50 on the electrode piece 5 to be processed. Through laser cutting, the precise shape cutting of the electrode piece 5 can be achieved. Such a setting ensures the production efficiency of the electrode piece 5.

[0060] The roller mechanism 100 is arranged downstream of the laser die-cutting mechanism 400. In the embodiment of the present application, the roller mechanism 100 includes a roller 1, a spindle device 2, a vacuum device 3 and a driving device 4. The roller 1 is provided with a receiving chamber 10 and a plurality of suction holes 11 connected to the receiving chamber 10. The pole piece 5 is turned to the tape through the roller 1 after the pole ear 50 is cut and formed. The spindle device 2 is inserted into the receiving chamber 10 and is rotatably connected to the roller 1. The vacuum device 3 is arranged in the receiving chamber 10 and is connected to the spindle device 2. The vacuum device 3 is provided with a vacuum chamber 30, and the vacuum chamber 30 is connected to at least part of the suction holes 11. The driving device 4 is connected to the vacuum device 3, and the driving device 4 is used to drive the vacuum device 3 to move along the spindle device 2. The vacuum chamber 30 of the vacuum device 3 can adsorb the pole ear 50 of the pole piece 5 to the outer periphery of the roller 1 through the suction holes 11 of the roller 1 to prevent the pole ear 50 from folding during the tape running of the pole piece 5. The driving device 4 can control the vacuum device 3 to move along the extension direction of the spindle device 2, and adjust the adsorption position of the vacuum chamber 30 so that the roller mechanism 100 of the present application can match the pole pieces 5 of different sizes, thereby improving the yield rate of the pole pieces 5. In addition, by miniaturizing the vacuum chamber 30 and connecting the vacuum chamber 30 with part of the suction holes 11, vacuum waste can be reduced.

[0061] The cutting mechanism 500 is used to cut the pole piece 5, so as to cut the pole piece 5 into at least two pole pieces 5. Such a configuration can meet the requirements of different sizes and facilitate subsequent use and processing.

[0062] The winding mechanism 600 is used to wind the cut pole piece 5 to form a pole piece film roll. The winding mechanism 600 provides tension control and coil guidance to ensure that the pole piece 5 remains flat and firm during the winding process, and is convenient for storage, transportation and subsequent use.

[0063] The present application can improve the yield rate of the pole piece 5 by adjusting the suction position of the vacuum chamber 30 of the roller mechanism to match pole pieces 5 of different sizes. In addition, by miniaturizing the vacuum chamber 30 so that the vacuum chamber 30 is connected to part of the suction holes 11, vacuum waste can be reduced.

[0064] Through the above-mentioned arrangement, the pole ear 50 can be prevented from being folded or torn during the transmission of the pole piece 5, thereby improving the performance of the pole piece film roll and improving the processing efficiency and quality of the pole piece 5.

[0065] The above is a detailed introduction to a roller mechanism and pole piece processing equipment provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A roller mechanism, characterized in that: include: A roller (1), wherein the roller (1) is provided with a receiving cavity (10) and a plurality of air suction holes (11) connected to the receiving cavity (10); A main shaft device (2) is inserted into the accommodating cavity (10) and is rotatably connected to the roller (1); A vacuum device (3) is arranged in the accommodating cavity (10) and connected to the spindle device (2); the vacuum device (3) is provided with a vacuum cavity (30), and the vacuum cavity (30) is connected to at least part of the suction holes (11); A driving device (4) is connected to the vacuum device (3), and the driving device (4) is used to drive the vacuum device (3) to move along the main axis device (2).

2. The roller mechanism according to claim 1, characterized in that: The driving device (4) comprises: A driving unit (40) is arranged outside the accommodating chamber (10); A rotating part (41) connected to the driving part (40), at least a portion of the rotating part (41) is disposed in the accommodating chamber (10) and connected to the vacuum device (3); The driving part (40) is used to drive the rotating part (41) to rotate, so as to drive the vacuum device (3) to move along the main shaft device (2).

3. The roller mechanism according to claim 2, characterized in that: The number of the vacuum devices (3) is multiple, and the multiple vacuum devices (3) are arranged at intervals along a first direction (X) and are respectively connected to the rotating part (41); when the rotating part (41) rotates, at least two of the vacuum devices (3) move in opposite directions, and the first direction (X) is the extension direction of the spindle device (2).

4. The roller mechanism according to claim 2, characterized in that: The driving device (4) further comprises: A support seat (42) is disposed in the accommodating cavity (10) and connected to the spindle device (2); and the rotating portion (41) is rotatably connected to the support seat (42).

5. The roller mechanism according to claim 4, characterized in that: There are a plurality of support seats (42), and at least one vacuum device (3) is provided between two adjacent support seats (42).

6. The roller mechanism according to claim 1, characterized in that: The spindle device (2) comprises a spindle body (20) and a bearing (21) connected to each other, the spindle body (20) extends along a first direction (X), and the roller (1) is rotatably connected to the bearing (21); The number of the vacuum devices (3) is multiple, and the multiple vacuum devices (3) are movably connected to the main shaft body (20) and are arranged at intervals along the first direction (X).

7. The roller mechanism according to claim 6, characterized in that: The bearing (21) is arranged between two adjacent vacuum devices (3); or There are a plurality of bearings (21), and at least one vacuum device (3) is provided between two adjacent bearings (21).

8. The roller mechanism according to claim 2, characterized in that: The rotating part (41) is a screw, which is threadedly connected to the vacuum device (3); or The rotating part (41) is a ball screw.

9. The roller mechanism according to claim 1, characterized in that: The roller (1) comprises an inner wall (12), and the inner wall (12) encloses the accommodating cavity (10); The roller mechanism comprises a sealing member, which is located between the inner wall (12) and the vacuum device (3) and is connected to the vacuum device (3).

10. The roller mechanism according to claim 9, characterized in that: The vacuum device (3) is provided with an air suction interface (31) which is in communication with the vacuum chamber (30), and the air suction interface (31) is used for the vacuum device to extract air in the vacuum chamber (30).

11. A pole piece processing device, characterized in that: It comprises a roller mechanism as described in any one of claims 1-10.

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