Bidirectional reverse drawing roller device
By using a bidirectional reverse tension roller device to perform reverse stretching and correction on the electrode sheet, the problems of die-cutting accuracy and inspection accuracy caused by electrode sheet bending are solved, thus improving the processing quality of the electrode sheet.
Patent Information
- Application Number
- CN202520034774.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-07
AI Technical Summary
In existing technologies, electrode bending affects die-cutting accuracy, electrode adsorption, and dimensional detection accuracy, leading to a decline in product quality.
A bidirectional reverse tension roller device is adopted, including a front roller group, a rear roller group, and a reverse tension roller group. The reverse tension roller is driven by the reverse tension roller group drive device to perform reverse stretching and correction on the electrode sheet. The correction effect is improved by using the arc-shaped roller and small-diameter roller structure.
This improved the die-cutting and inspection accuracy of the electrodes, reduced the impact on electrode adsorption, and enhanced processing quality.
Smart Images
Figure CN223718125U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pole piece processing equipment, especially a bidirectional reverse pulling roller device. BACKGROUND
[0002] In lithium battery production, the pole piece is one of the core components. There are many lithium battery manufacturers on the current market, and each manufacturer has the problem of curved pole piece due to the pole piece formula and production process. The curved pole piece will affect the die cutting precision of the pole piece and the adsorption of the pole piece on the vacuum belt, and the curved pole piece will also affect the size detection precision, which will affect the product quality. Therefore, how to effectively correct the curved pole piece under the condition of curved incoming material of the manufacturer so as to reduce the influence on the subsequent process has become the focus.
[0003] Therefore, the utility model aims at providing a new technical scheme to solve the existing technical problems. UTILITY MODEL CONTENT
[0004] In order to overcome the defects of the prior art, the utility model provides a bidirectional reverse pulling roller device, which solves the technical defects of affecting die cutting precision, affecting pole piece adsorption and affecting size detection precision caused by the bending of the pole piece in the prior art.
[0005] The utility model solves the technical problems by adopting the following technical scheme:
[0006] A bidirectional reverse pulling roller device comprises:
[0007] A front roller group comprises two front rollers, and the two front rollers have a gap for passing the pole piece;
[0008] A rear roller group comprises two rear rollers, and the two rear rollers have a gap for passing the pole piece;
[0009] A reverse pulling roller group comprises two reverse pulling rollers, and the two reverse pulling rollers have a gap for passing the pole piece, and the reverse pulling roller group is arranged between the front roller group and the rear roller group;
[0010] A reverse pulling roller group driving device is used to drive the reverse pulling roller group to move to correct the pole piece.
[0011] As a further improvement of the above technical scheme, the reverse pulling roller is an arc-shaped roller.
[0012] As a further improvement of the above technical scheme, the roller diameter of the reverse pulling roller is smaller than the roller diameter of the front roller and the rear roller.
[0013] As a further improvement of the above technical solution, the reverse pulling roller set driving device comprises one of an oil cylinder driving device, a gas cylinder driving device, an electric cylinder driving device, a motor screw driving device and a linear motor driving device.
[0014] As a further improvement of the above technical solution, the reverse pulling roller set driving device comprises a gas cylinder driving device, the electric cylinder driving device comprises a reverse pulling roller driving gas cylinder and a gas cylinder pressure regulating valve matched with the reverse pulling roller driving gas cylinder, and the gas cylinder pressure regulating valve is used for controlling the driving force of the reverse pulling roller driving gas cylinder.
[0015] As a further improvement of the above technical solution, one group of the front passing roller set, one group of the rear passing roller set and one group of the reverse pulling roller set jointly constitute a one-stage reverse pulling mechanism, and the reverse pulling mechanism has multiple stages.
[0016] As one of the implementation improvements of the above technical solution, the reverse pulling mechanism has two stages.
[0017] As a further improvement of the above technical solution, the device rack is further provided, and the front passing roller set, the rear passing roller set, the reverse pulling roller set and the reverse pulling roller set driving device are arranged on the device rack.
[0018] As a further improvement of the above technical solution, the front passing roller set further comprises a front passing roller mounting shaft, and the front passing roller is mounted on the device rack through the front passing roller mounting shaft; the rear passing roller set further comprises a rear passing roller mounting shaft, and the rear passing roller is mounted on the device rack through the rear passing roller mounting shaft.
[0019] As a further improvement of the above technical solution, the reverse pulling roller set further comprises a reverse pulling roller mounting shaft and a reverse pulling roller sliding mounting base, the reverse pulling roller is mounted on the reverse pulling roller sliding mounting base through the reverse pulling roller mounting shaft, the reverse pulling roller sliding mounting base is slidingly arranged on the device rack, and the acting end of the reverse pulling roller set driving device is connected to the reverse pulling roller sliding mounting base and is used for driving the reverse pulling roller sliding mounting base and the reverse pulling roller to move on the device rack.
[0020] The beneficial effect of the utility model is: the utility model provides a kind of bidirectional reverse pulling roller device, the bidirectional reverse pulling roller device is provided with front passing roller set, rear passing roller set, reverse pulling roller set and reverse pulling roller set driving device, the reverse pulling roller set driving device can drive the reverse pulling roller set movement, and the reverse pulling roller set is stretched to the opposite direction of the polar piece bending by its reverse pulling roller, so that the polar piece can be corrected, to further improve the die cutting precision and detection precision of polar piece in processing process, also will not affect the adsorption work of polar piece, improve processing quality.
[0021] In conclusion, the bidirectional reverse pulling roller device solves the technical defects of affecting die cutting precision, affecting polar piece adsorption and affecting size detection precision due to polar piece bending in the prior art. BRIEF DESCRIPTION OF DRAWINGS
[0022] The utility model is further explained below in combination with the drawings and embodiments.
[0023] Figure 1 It is the shape schematic diagram of the positive bending, no bending and reverse bending state of the pole piece in the utility model;
[0024] Figure 2 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 1 of the utility model when correcting the positive bending pole piece;
[0025] Figure 3 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 1 of the utility model when passing the no bending pole piece;
[0026] Figure 4 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 1 of the utility model when correcting the reverse bending pole piece;
[0027] Figure 5 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 2 of the utility model when correcting the positive bending pole piece;
[0028] Figure 6 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 2 of the utility model when passing the no bending pole piece;
[0029] Figure 7 It is the principle schematic diagram of the bidirectional reverse pulling roller device in the embodiment 2 of the utility model when correcting the reverse bending pole piece. DETAILED DESCRIPTION
[0030] The conception, specific structure and generated technical effect of the utility model will be described clearly and completely below in combination with the embodiments and drawings, so as to fully understand the purpose, features and effect of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, and other embodiments obtained by the person skilled in the art without creative labor based on the embodiments of the utility model all belong to the protection scope of the utility model. In addition, all the coupling / connection relations involved in the patent are not single component direct connection, but can form more optimal coupling structure by adding or reducing coupling auxiliary parts according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined under the premise of no mutual contradiction and conflict, and the reference Figures 1-7 .
[0031] Embodiment 1: refer specifically to Figures 1-4 .
[0032] .The technical scheme provides a bidirectional reverse pulling roller device, which comprises a front roller group 1, a rear roller group 3, a reverse pulling roller group 2 and a reverse pulling roller group driving device.
[0033] The front roller group 1 comprises two front rollers 11, and gaps for passing the pole piece 9 are formed between the two front rollers 11; the rear roller group 3 comprises two rear rollers 31, and gaps for passing the pole piece 9 are formed between the two rear rollers 31; the reverse pulling roller group 2 comprises two reverse pulling rollers 21, and gaps for passing the pole piece 9 are formed between the two reverse pulling rollers 21, and the reverse pulling roller group 2 is arranged between the front roller group 1 and the rear roller group 3; and the reverse pulling roller group driving device is used for driving the reverse pulling roller group 2 to move to correct the pole piece 9.
[0034] In application, referring to Figure 1 、 Figure 2 When the pole piece 9 is forwardly bent, the reverse pulling roller group driving device drives the reverse pulling roller group 2 to move to the left, the reverse pulling roller 21 in the reverse pulling roller group 2 drives the pole piece to correct to the left, so that the pole piece can be finally corrected to be flat; referring to Figure 1 、 Figure 3 When the pole piece 9 is flat without bending, the reverse pulling roller group driving device drives the reverse pulling roller group 2 to move to the middle position, the reverse pulling roller group 2 does not work, and the pole piece does not need to be stretched; similarly, referring to Figure 1 、 Figure 4 When the pole piece 9 is reversely bent, the reverse pulling roller group driving device drives the reverse pulling roller group 2 to move to the right, the reverse pulling roller 21 in the reverse pulling roller group 2 drives the pole piece to correct to the right, so that the pole piece can be finally corrected to be flat.
[0035] In some specific embodiments, the reverse pulling roller 21 is an arc-shaped roller. In the premise of meeting performance requirements, the implementer can also select other rollers as the reverse pulling roller according to needs.
[0036] In some embodiments, the roller diameter of the reverse pulling roller 21 is smaller than the roller diameter of the front roller 11 and the rear roller 31. The diameter of the reverse pulling roller 21 is relatively small compared with the diameter of the front roller 11 and the rear roller 31, and this kind of arrangement can more effectively play a correcting role.
[0037] In the above technical scheme, one group of the front roller group 1, one group of the rear roller group 3 and one group of the reverse pulling roller group 2 jointly constitute a first-stage reverse pulling mechanism, and the reverse pulling mechanism can be arranged in multiple stages, and multiple-stage reverse pulling mechanisms are sequentially arranged, so that the effect of reverse pulling correction can be improved. In actual implementation of the utility model, the implementer can arrange a proper number according to needs. In the embodiment, the reverse pulling mechanism has one stage.
[0038] In the above technical solution, the reverse pulling roller group driving device comprises one of an oil cylinder driving device, a pneumatic cylinder driving device, an electric cylinder driving device, a motor screw driving device and a linear motor driving device. In this embodiment, the reverse pulling roller group driving device comprises a pneumatic cylinder driving device, the electric cylinder driving device comprises a reverse pulling roller driving pneumatic cylinder and a pneumatic cylinder pressure regulating valve matched with the reverse pulling roller driving pneumatic cylinder, and the pneumatic cylinder pressure regulating valve is used to control the driving force of the reverse pulling roller driving pneumatic cylinder. In specific application, the reverse pulling roller group 2 is driven to move left and right by the reverse pulling roller driving pneumatic cylinder, and the pneumatic cylinder pressure regulating valve is used to control the power of the reverse pulling roller driving pneumatic cylinder, thereby controlling the correction strength of the pole piece.
[0039] In other embodiments, the implementer can also use other driving devices as described above as the reverse pulling roller group driving device if applicable, and the principle is the same, which will not be described here.
[0040] In addition, in the above technical solution, the bidirectional reverse pulling roller device further comprises a device rack, and the front passing roller group 1, the rear passing roller group 3, the reverse pulling roller group 2 and the reverse pulling roller group driving device are arranged on the device rack. Specifically, the front passing roller group 1 further comprises a front passing roller mounting shaft, and the front passing roller 11 is mounted on the device rack through the front passing roller mounting shaft; the rear passing roller group 3 further comprises a rear passing roller mounting shaft, and the rear passing roller 31 is mounted on the device rack through the rear passing roller mounting shaft. The reverse pulling roller group 2 further comprises a reverse pulling roller mounting shaft and a reverse pulling roller sliding mounting seat, the reverse pulling roller 21 is mounted on the reverse pulling roller sliding mounting seat through the reverse pulling roller mounting shaft, the reverse pulling roller sliding mounting seat is slidingly arranged on the device rack, and the acting end of the reverse pulling roller group driving device is connected to the reverse pulling roller sliding mounting seat and used to drive the reverse pulling roller sliding mounting seat and the reverse pulling roller 21 to move on the device rack.
[0041] Embodiment 2: Refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 This embodiment is basically the same as the embodiment, and the difference lies in that the reverse pulling mechanism has two stages.
[0042] In the implementation of this embodiment, refer to Figure 1 , Figure 5 When the pole piece 9 is positively curved, the reverse pulling roller group driving device drives the two groups of reverse pulling roller groups 2 to move left, and the reverse pulling rollers 21 in the two groups of reverse pulling roller groups 2 drive the pole piece to correct left, so that the pole piece can be finally corrected and flattened; refer to Figure 1 , Figure 6 When the pole piece 9 is flat and not curved, the reverse pulling roller group driving device drives the two groups of reverse pulling roller assemblies 2 to move to the middle position, and the two groups of reverse pulling roller groups 2 do not work, and the pole piece does not need to be stretched; similarly, refer to Figure 1 ,Figure 7 When the pole piece 9 is reversely bent, the reverse pulling roller group driving device drives the two groups of reverse pulling roller groups 2 to move right, and the reverse pulling rollers 21 in the two groups of reverse pulling roller groups 2 drive the pole piece to correct right, so that the pole piece can be finally corrected and flattened.
[0043] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.
Claims
1. A bi-directional counteracting roll device, characterized in that, The application relates to a device for correcting a polar piece (9) and belongs to the technical field of polar piece correction. The device comprises: a front roller group (1) comprising two front rollers (11) with a gap for passing the polar piece (9) between the two front rollers (11); a rear roller group (3) comprising two rear rollers (31) with a gap for passing the polar piece (9) between the two rear rollers (31); a counter-pulling roller group (2) comprising two counter-pulling rollers (21) with a gap for passing the polar piece (9) between the two counter-pulling rollers (21), the counter-pulling roller group (2) being arranged between the front roller group (1) and the rear roller group (3); 2. A bi-directional counteracting roller device according to claim 1, characterized in that: a counter-pulling roller group driving device for driving the counter-pulling roller group (2) to move to correct the polar piece (9).
3. A bi-directional counteracting roller device according to claim 1, characterized in that: The counter-pulling rollers (21) are arc-shaped rollers.
4. A bi-directional counteracting roller device according to claim 1, characterized in that: The roller diameter of the counter-pulling rollers (21) is smaller than the roller diameter of the front rollers (11) and the rear rollers (31).
5. A bi-directional counteracting roll arrangement according to claim 4, characterized in that: The counter-pulling roller group driving device comprises one of an oil cylinder driving device, an air cylinder driving device, an electric cylinder driving device, a motor screw driving device and a linear motor driving device.
6. A bi-directional counteracting roll arrangement according to claim 1, characterized in that: The counter-pulling roller group driving device comprises an air cylinder driving device, the electric cylinder driving device comprises a counter-pulling roller driving air cylinder and an air cylinder pressure regulating valve matched with the counter-pulling roller driving air cylinder, and the air cylinder pressure regulating valve is used for controlling the driving force of the counter-pulling roller driving air cylinder.
7. A bi-directional counteracting roller arrangement according to claim 6, characterized in that: The front roller group (1), the rear roller group (3) and the counter-pulling roller group (2) together form a counter-pulling mechanism, and the counter-pulling mechanism has multiple levels.
8. A bi-directional counteracting roller arrangement according to any one of claims 1-7, characterized in that: The counter-pulling mechanism has two levels.
9. A bi-directional counteracting roller arrangement according to claim 8, characterized in that: The device further comprises a device rack, and the front roller group (1), the rear roller group (3), the counter-pulling roller group (2) and the counter-pulling roller group driving device are arranged on the device rack.
10. A bi-directional counteracting roll arrangement according to claim 8, characterized in that: The front roller group (1) further comprises a front roller mounting shaft, the front rollers (11) are mounted on the device rack through the front roller mounting shaft; the rear roller group (3) further comprises a rear roller mounting shaft, and the rear rollers (31) are mounted on the device rack through the rear roller mounting shaft. The counter-pulling roller group (2) further comprises a counter-pulling roller mounting shaft and a counter-pulling roller sliding mounting base, the counter-pulling rollers (21) are mounted on the counter-pulling roller sliding mounting base through the counter-pulling roller mounting shaft, the counter-pulling roller sliding mounting base is slidingly arranged on the device rack, and an acting end of the counter-pulling roller group driving device is connected to the counter-pulling roller sliding mounting base and used for driving the counter-pulling roller sliding mounting base and the counter-pulling rollers (21) to move on the device rack.