Double-cell pole piece winding deviation rectifying device

Abstract

The utility model discloses a double-cell pole piece winding deviation rectifying device, and relates to the technical field of lithium ion battery processing equipment. The two sides of the supporting seat are respectively provided with rotating roller assemblies which can be matched with each other so as to support the double-cell pole piece; the rotating roller assembly comprises a first rotating roller and a second rotating roller, wherein the first end of the first rotating roller is rotationally connected to the supporting base; the first end of the second rotating roller is rotationally connected to the supporting base, and the second rotating roller and the first rotating roller are oppositely arranged; and the driving assembly is connected to the second end of the first rotating roller and the second end of the second rotating roller and is used for driving the first rotating roller and the second rotating roller to synchronously rotate relative to the supporting seat so as to rectify the deviation of the pole pieces on the first rotating roller and the second rotating roller. The utility model aims to realize independent adjustment and deviation correction of stock lines on two sides of a double-cell pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium-ion battery processing equipment, in particular to a double-cell pole piece winding deviation correction device. Background Art

[0002] The new dual-cell winding technology is in its infancy in the lithium battery industry, and the winding process is an important part of the dual-cell development process. During the winding process, there is a phenomenon that the offset of the pole piece material line on the inside and outside is different. The traditional deviation corrector controls the change of the pole piece material line position by the steering gear as a whole, which cannot meet the needs of the dual-cell pole piece to independently adjust the material lines on both sides.

[0003] Therefore, how to achieve independent adjustment and correction of the material lines on both sides of the dual-cell electrode has become a technical problem that needs to be solved urgently. Utility Model Content

[0004] The main purpose of the utility model is to provide a dual-cell pole piece winding deviation correction device, aiming to achieve independent adjustment and deviation correction of material lines on both sides of the dual-cell pole piece.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a dual-cell pole piece winding correction device, comprising:

[0006] A support seat, wherein two sides of the support seat are respectively provided with roller assemblies that can cooperate with each other to support the dual-cell electrode sheet; the roller assembly includes:

[0007] A first rotating roller, a first end of which is rotatably connected to the support seat;

[0008] A second rotating roller, a first end of which is rotatably connected to the support seat and is disposed opposite to the first rotating roller; and

[0009] The driving assembly is connected to the second end of the first rotating roller and the second end of the second rotating roller, and is used to drive the first rotating roller and the second rotating roller to rotate synchronously relative to the support seat to correct the pole pieces located on the first rotating roller and the second rotating roller.

[0010] In one embodiment of the present application, the driving assembly includes:

[0011] Driving parts;

[0012] A transmission screw rod connected to the output shaft of the driving member;

[0013] A first transmission member, threadedly connected to the transmission screw;

[0014] A second transmission member, threadedly connected to the transmission screw; and

[0015] The first transmission member and the second transmission member are slidably connected to the guide member, the second end of the first rotating roller is connected to the first transmission member, and the second end of the second rotating roller is connected to the second transmission member.

[0016] In one embodiment of the present application, it also includes:

[0017] The back plate is provided with a through hole, and a slide rail is provided on at least one side of the through hole; when a slide rail is provided on one side of the through hole, the driving member is connected to the slide rail and can reciprocate along the length direction of the slide rail, and the output shaft of the driving member passes through the through hole and is connected to the transmission screw.

[0018] In one embodiment of the present application, when slide rails are provided on both sides of the through hole, the driving member is connected to one of the slide rails and can reciprocate in the length direction of the slide rail, and the output shaft of the driving member passes through the through hole; a fixing plate is connected to the other slide rail, and a through hole is provided on the fixing plate, and the output shaft of the driving member passes through the through hole and is connected to the transmission screw.

[0019] In one embodiment of the present application, a limit adjustment knob is provided on the fixing plate for tightening the output shaft passing through the through hole of the fixing plate.

[0020] In one embodiment of the present application, two relatively arranged limit blocks are provided on the back plate, a rack with a length smaller than the limit blocks is provided between the limit blocks, guide columns are provided at both ends of the rack, the two guide columns pass through different limit blocks respectively and extend to the outside of the two limit blocks, one of the guide columns is connected to the driving member; a stepper motor is also provided on the back plate, and a gear matching the rack is connected to the output shaft of the stepper motor.

[0021] In one embodiment of the present application, the first transmission member and / or the second transmission member is provided with two oppositely disposed limiting protrusions, and the guide member is provided with a limiting sliding groove matching the two oppositely disposed limiting protrusions.

[0022] In an embodiment of the present application, the via hole is a waist-shaped hole.

[0023] In one embodiment of the present application, the driving component is a servo motor.

[0024] In one embodiment of the present application, one end of the guide member is connected to the fixing plate.

[0025] By adopting the above technical solution, the dual-cell pole piece winding correction device can correct the pole piece located on them by driving the first rotating roller and the second rotating roller to rotate synchronously. This helps to ensure the accurate and stable position of the dual-cell pole piece and improve the quality and performance of the battery assembly. There are roller assemblies on both sides of the support seat, which can realize the adjustment of the pole pieces on both sides of the dual-cell separately, with higher adjustment accuracy and more stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0027] Figure 1 This is a schematic structural diagram of the first embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the second viewing angle of the first embodiment of the utility model;

[0029] 10. Support seat; 21. First rotating roller; 22. Second rotating roller; 30. Driving member; 31. Transmission screw; 41. First transmission member; 42. Second transmission member; 43. Guide member; 44. Fixed plate; 45. Limit adjustment knob; 50. Stepping motor; 51. Limit block; 52. Rack; 60. Back plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the utility model and do not constitute a limitation on the utility model.

[0031] like Figure 1 to Figure 2 As shown, in order to achieve the above purpose, the utility model proposes a dual-cell pole piece winding correction device, comprising:

[0032] The support seat 10 has roller assemblies on both sides thereof that can cooperate with each other to support the dual-cell electrode sheet; the roller assemblies include:

[0033] A first rotating roller 21, a first end of which is rotatably connected to the support seat 10;

[0034] A second rotating roller 22, a first end of which is rotatably connected to the support seat 10 and is disposed opposite to the first rotating roller 21; and

[0035] The driving assembly is connected to the second end of the first rotating roller 21 and the second end of the second rotating roller 22, and is used to drive the first rotating roller 21 and the second rotating roller 22 to rotate synchronously relative to the support seat 10 to achieve deviation correction of the pole pieces located on the first rotating roller 21 and the second rotating roller 22.

[0036] Specifically, the support seat 10 is installed on the bracket. The support seat 10 is made of metal material, such as aluminum alloy material, alloy steel material, etc. The support seat 10 made of metal material has the advantages of strong support capacity and wear resistance. Roller assemblies are respectively arranged on both sides of the support seat 10. The two roller assemblies cooperate with each other to support the dual-cell pole piece. The two roller assemblies are symmetrically arranged about the support seat 10.

[0037] The roller assembly includes a first rotating roller 21, a second rotating roller 22, and a driving assembly.

[0038] The first end of the first rotating roller 21 is connected to the support base 10 and can rotate freely. The first rotating roller 21 is a cylinder and can be used to support and rotate the dual-cell electrode sheet.

[0039] The first end of the second rotating roller 22 is connected to the support seat 10 and can rotate freely. The second rotating roller 22 is arranged opposite to the first rotating roller 21 .

[0040] The driving assembly is connected to the second ends of the first rotating roller 21 and the second rotating roller 22, and is used to drive the first rotating roller 21 and the second rotating roller 22 to rotate synchronously along the support seat 10. The driving assembly can be implemented by a motor or other appropriate mechanical device to ensure that the first rotating roller 21 and the second rotating roller 22 keep rotating synchronously during the winding process.

[0041] By adopting the above technical solution, the dual-cell pole piece winding correction device can correct the pole piece located on them by driving the first rotating roller 21 and the second rotating roller 22 to rotate synchronously. This helps to ensure the accurate and stable position of the dual-cell pole piece and improve the quality and performance of the battery assembly. Roller assemblies are provided on both sides of the support seat 10, so that the pole pieces on both sides of the dual-cell can be adjusted separately, with higher adjustment accuracy and more stability.

[0042] In one embodiment of the present application, the driving assembly includes:

[0043] A driving member 30;

[0044] A transmission screw 31 connected to the output shaft of the driving member 30;

[0045] A first transmission member 41, threadedly connected to the transmission screw rod 31;

[0046] A second transmission member 42, threadedly connected to the transmission screw 31; and

[0047] The guide member 43 , the first transmission member 41 and the second transmission member 42 are slidably connected to the guide member 43 , the second end of the first rotating roller 21 is connected to the first transmission member 41 , and the second end of the second rotating roller 22 is connected to the second transmission member 42 .

[0048] Specifically, the drive is connected to the first rotating roller 21 and the second rotating roller 22, and is used to drive the first rotating roller 21 and the second rotating roller 22 to rotate synchronously. The transmission screw 31 is a component connected to the output shaft of the driving member 30, and the transmission screw 31 has a threaded structure. The rotational motion of the transmission screw 31 is driven by the driving member 30, and the rotational motion is converted into linear motion through the threaded connection. The first transmission member 41 is threadedly connected to the transmission screw 31, and the first transmission member 41 has a threaded structure that matches the thread on the transmission screw 31. The first transmission member 41 is threadedly connected to the transmission screw 31, and moves linearly along the screw as the transmission screw 31 rotates.

[0049] The second transmission member 42 is connected to the transmission screw 31, and has a thread structure matching the thread on the transmission screw 31. The second transmission member 42 is connected to the transmission screw 31 through threads, and moves linearly along the screw as the transmission screw 31 rotates.

[0050] The first transmission member 41 and the second transmission member 42 are slidably connected to the guide member 43. The structure of the guide member 43 can be a guide groove or a guide rail, which can maintain the movement trajectory of the first transmission member 41 and the second transmission member 42 and ensure that the first transmission member 41 and the second transmission member 42 maintain stable movement during the winding process.

[0051] By adopting the above technical solution, the design of the transmission screw 31 and the transmission member enables the rotational motion to be accurately converted into linear motion, thereby realizing the precise driving of the first rotating roller 21 and the second rotating roller 22. This helps to ensure that the winding process of the dual-cell pole piece is accurate. Improve the precise control of the rotation angle of the first rotating roller 21 and the second rotating roller 22. By driving the synchronous rotation of the first rotating roller 21 and the second rotating roller 22, and through the support of the guide member 43, the dual-cell pole piece can be quickly and accurately corrected, thereby improving production efficiency.

[0052] In one embodiment of the present application, it also includes:

[0053] The back plate 60 is provided with a through hole, and a slide rail is provided on at least one side of the through hole; when a slide rail is provided on one side of the through hole, the driving member 30 is connected to the slide rail and can reciprocate along the length direction of the slide rail, and the output shaft of the driving member 30 passes through the through hole and is connected to the transmission screw 31.

[0054] Specifically, the back plate 60 is a plate-shaped component with a via hole, and is made of metal material, such as aluminum alloy material, alloy steel material, etc. The back plate 60 made of metal material has the advantages of strong support capacity and wear resistance. The via hole is a hole on the back plate 60, which is used to transmit motion or connection through other components.

[0055] The slide rail is a track structure connected to one side of the through hole, which is a long strip of guide rail. The function of the slide rail is to provide a smooth motion path so that the drive member 30 can reciprocate along the length of the slide rail. The drive member 30 is connected to the slide rail and can reciprocate along the slide rail to drive the rotation of the transmission screw 31. The output shaft is a shaft on the drive member 30, which passes through the through hole and is connected to the transmission screw 31. The rotation of the output shaft is transmitted to the transmission screw 31, thereby transmitting the driving force to the first transmission member 41 and the second transmission member 42.

[0056] With the above technical solution, the slide rail provides a smooth and stable motion path, so that the driving member 30 can reciprocate along the length direction of the slide rail, which helps to avoid the transmission screw 31 from bending due to the fixed distance when driving the first transmission member 41 and the second transmission member 42.

[0057] In one embodiment of the present application, when slide rails are provided on both sides of the through hole, the driving member 30 is connected to one of the slide rails and can reciprocate in the length direction of the slide rail, and the output shaft of the driving member 30 passes through the through hole; a fixing plate 44 is connected to the other slide rail, and a through hole is provided on the fixing plate 44, and the output shaft of the driving member 30 passes through the through hole and is connected to the transmission screw.

[0058] Specifically, the back plate 60 is a plate-shaped component with a via hole, and is made of metal material, such as aluminum alloy material, alloy steel material, etc. The back plate 60 made of metal material has the advantages of strong support capacity and wear resistance. The via hole is a hole on the back plate 60, which is used to transmit motion or connection through other components.

[0059] Slide rails are provided on both sides of the through hole, namely, a first slide rail and a second slide rail. The first slide rail is a track structure connected to one side of the through hole, and the first slide rail is located on one side of the back plate 60. The function of the first slide rail is to provide a smooth motion path so that the driving member 30 can reciprocate along the length direction of the first slide rail.

[0060] The output shaft passes through the through hole and is connected to the transmission screw rod. The rotational motion of the output shaft is transmitted to the transmission screw rod, thereby transmitting the driving force to the first transmission member 41 and the second transmission member.

[0061] The second slide rail is a rail structure connected to the other side of the through hole, and the second slide rail is located on the other side of the back plate 60. The function of the second slide rail is to provide a smooth movement path so that the fixed plate 44 can move along the length direction of the second slide rail. The fixed plate 44 is connected to the second slide rail, and the fixed plate 44 is located on the other side of the back plate 60. The fixed plate 44 is provided with a through hole for the output shaft of the driving member 30 to pass through.

[0062] By adopting the above technical solution, by setting the first slide rail and the second slide rail on the back plate 60, it is possible to simultaneously support the driving member 30 and the fixing member, thereby ensuring the stability of the working process of the driving member 30, while also ensuring the stable movement of the transmission screw rod, reducing errors and vibrations, and improving the accuracy and reliability of the system.

[0063] In one embodiment of the present application, a limit adjustment knob 45 is provided on the fixing plate 44 for pressing the output shaft passing through the through hole of the fixing plate 44 .

[0064] With the above technical solution, the limit adjustment knob 45 allows the clamping force of the output shaft to be accurately adjusted. By rotating the knob, the pressure on the output shaft can be increased or decreased to avoid deflection of the output shaft. By using the limit adjustment knob 45 to clamp the output shaft, it can be ensured that the connection between the output shaft and the fixing plate 44 has a stable clamping force. This stability can reduce looseness and vibration and improve the reliability and stability of the system.

[0065] In one embodiment of the present application, two relatively arranged limit blocks 51 are provided on the back plate 60, and a rack 52 with a length smaller than the limit blocks 51 is provided between the limit blocks 51, and guide columns are provided at both ends of the rack 52, and the two guide columns pass through different limit blocks 51 respectively and extend to the outside of the two limit blocks 51, and one of the guide columns is connected to the driving member 30; a stepping motor 50 is also provided on the back plate 60, and a gear matching the rack 52 is connected to the output shaft of the stepping motor 50.

[0066] Specifically, two limit blocks 51 are relatively arranged on the back plate 60, and the rack 52 is a long strip with a toothed structure connected between the two limit blocks 51. The length of the rack 52 is less than the length between the two limit blocks 51, so as to provide space when the driving member 30 moves. The function of the rack 52 is to cooperate with the gear on the stepper motor 50 to convert the rotational motion of the stepper motor 50 into linear motion. The guide column is two columnar structures located at both ends of the rack 52, and the guide column passes through different limit blocks 51 and extends outward. One of the guide columns is connected to the driving member 30, and is used to guide the driving member 30 to move on the slider.

[0067] The stepper motor 50 is an electric motor mounted on the back plate 60 , and has the ability to accurately control the rotation angle. A gear matched with the rack 52 is connected to the output shaft of the stepper motor 50 .

[0068] By adopting the above technical solution, through the combination of the stepper motor 50 and the rack 52, the driving member 30 can be precisely controlled. When the driving member 30 drives the transmission screw 31 to move linearly, the transmission screw 31 is angle compensated to avoid bending of the transmission screw 31. The stepper motor 50 provides precise rotation angle control, and the rack 52 converts the rotational motion into linear motion. This precise control capability helps to achieve precise positioning and motion control. By setting the limit block 51 and the rack 52, the range of motion of the driving member 30 can be limited. In this way, it can be ensured that the driving member 30 moves within a safe range, prevents it from exceeding the predetermined limit, and improves the safety and reliability of the system.

[0069] In one embodiment of the present application, two oppositely disposed limiting protrusions are provided on the first transmission member 41 and / or the second transmission member 42, and a limiting sliding groove matching with the two oppositely disposed limiting protrusions is provided on the guide member 43.

[0070] By adopting the above technical solution, the cooperation of the limiting protrusion and the limiting groove can prevent the first transmission member 41 and / or the second transmission member 42 from disengaging from the guide member 43, ensuring that the first transmission member 41 and / or the second transmission member 42 can always perform linear motion driven by the transmission screw 31.

[0071] In an embodiment of the present application, the via hole is a waist-shaped hole.

[0072] With the above technical solution, the waist-shaped hole is relatively narrow in the middle and wider at both ends, and this shape can provide higher strength and rigidity. At the same time, it can also provide space for the movement of the output shaft.

[0073] In one embodiment of the present application, the driving component 30 is a servo motor.

[0074] By adopting the above technical solution, the servo motor has a high position control accuracy and can achieve precise positioning. The servo motor also has a fast response speed and can quickly generate output torque and speed. This fast response capability enables the drive member 30 to quickly start, stop and adjust the motion state, thereby improving the dynamic performance and response speed of the system.

[0075] In an embodiment of the present application, one end of the guide member 43 is connected to the fixing plate 44 .

[0076] By adopting the above technical solution, the overall stability of the system can be increased by connecting one end of the guide member 43 to the fixed plate 44. The fixed plate 44, as a fixed support point, can provide additional support and stability and reduce the vibration and shaking of the guide member 43. This helps to ensure that the guide member 43 remains stable during movement and improves the accuracy and reliability of the system.

[0077] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A dual-cell pole piece winding correction device, characterized in that: include: A support seat (10), wherein two sides of the support seat (10) are respectively provided with roller assemblies that can cooperate with each other to support the dual-cell pole pieces; The roller assembly comprises: A first rotating roller (21), a first end of which is rotatably connected to the supporting seat (10); a second rotating roller (22), a first end of which is rotatably connected to the support seat (10) and is disposed opposite to the first rotating roller (21); and A driving assembly is connected to the second end of the first rotating roller (21) and the second end of the second rotating roller (22), and is used to drive the first rotating roller (21) and the second rotating roller (22) to rotate synchronously relative to the support seat (10), so as to correct the deviation of the pole pieces located on the first rotating roller (21) and the second rotating roller (22).

2. The dual-cell pole piece winding deviation correction device according to claim 1, characterized in that: The drive assembly comprises: A driving member (30); A transmission screw (31) connected to the output shaft of the driving member (30); A first transmission member (41) threadedly connected to the transmission screw rod (31); A second transmission member (42) is threadedly connected to the transmission screw (31); and A guide member (43), the first transmission member (41) and the second transmission member (42) are slidably connected to the guide member (43), the second end of the first rotating roller (21) is connected to the first transmission member (41), and the second end of the second rotating roller (22) is connected to the second transmission member (42).

3. The dual-cell pole piece winding correction device according to claim 2, characterized in that: Also includes: The back plate (60) is provided with a through hole, and a slide rail is provided on at least one side of the through hole; when the slide rail is provided on one side of the through hole, the driving member (30) is connected to the slide rail and can reciprocate along the length direction of the slide rail, and the output shaft of the driving member (30) passes through the through hole and is connected to the transmission screw (31).

4. The dual-cell pole piece winding deviation correction device according to claim 3, characterized in that: When slide rails are provided on both sides of the through hole, the driving member (30) is connected to one of the slide rails and can reciprocate in the length direction of the slide rail, and the output shaft of the driving member (30) passes through the through hole; a fixing plate (44) is connected to the other slide rail, and a through hole is provided on the fixing plate (44), and the output shaft of the driving member (30) passes through the through hole and is connected to the transmission screw rod.

5. The dual-cell pole piece winding deviation correction device according to claim 4, characterized in that: The fixing plate (44) is provided with a limit adjustment knob (45) capable of pressing the output shaft passing through the through hole of the fixing plate (44).

6. The dual-cell pole piece winding deviation correction device according to claim 3, characterized in that: The back plate (60) is provided with two oppositely arranged limit blocks (51), a rack (52) whose length is shorter than the limit blocks (51) is provided between the limit blocks (51), guide posts are provided at both ends of the rack (52), the two guide posts respectively pass through different limit blocks (51) and extend to the outside of the two limit blocks (51), and one of the guide posts is connected to the driving member (30); the back plate (60) is also provided with a stepping motor (50), and a gear matched with the rack (52) is connected to the output shaft of the stepping motor (50).

7. The dual-cell pole piece winding deviation correction device according to claim 2, characterized in that: The first transmission member (41) and / or the second transmission member (42) are provided with two oppositely disposed limiting protrusions, and the guide member (43) is provided with a limiting sliding groove matched with the two oppositely disposed limiting protrusions.

8. The dual-cell pole piece winding deviation correction device according to claim 3, characterized in that: The via hole is a waist-shaped hole.

9. The dual-cell pole piece winding deviation correction device according to claim 2, characterized in that: The driving member (30) is a servo motor.

10. The dual-cell pole piece winding deviation correction device according to claim 4, characterized in that: One end of the guide member (43) is connected to the fixing plate (44).

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