Device for simultaneously rectifying deviation of multiple pole pieces

Abstract

A device for simultaneously rectifying deviation of multiple pole pieces comprises a machine frame, two deviation rectifying separation implementation mechanisms, at least two passing rollers and a first combining roller, the two deviation rectifying separation implementation mechanisms are located on the machine frame and arranged in the advancing direction of the pole pieces, and a first floating roller assembly is arranged in front of the deviation rectifying separation implementation mechanisms. Each deviation rectification separation implementation mechanism and at least one passing roller form a deviation rectification line, the first pole piece group comprises a plurality of independent unit pole pieces, the second pole piece group comprises a plurality of independent unit pole pieces, and the first pole piece group and the second pole piece group respectively move on the two deviation rectification lines and are combined on the first combining roller. The utility model has the advantages that the tension of the unit pole piece is more stable, the pole piece is prevented from moving on the roller surface, and the accuracy of the slitting width or position required by a plurality of pole pieces can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of battery pole piece deviation correction devices, in particular to a simultaneous deviation correction device for multiple pole pieces. Background Art

[0002] In the prior art, there is a process called deviation correction in the processing of lithium battery pole pieces, which is to correct the deviation of lithium battery pole pieces to facilitate subsequent processes such as rolling. In order to improve production efficiency, during the processing of lithium battery pole pieces, multiple pole pieces can improve the production efficiency and stability of processes such as rolling and slitting.

[0003] However, as the number of pole pieces continues to increase, more problems arise. First, it is easy for multiple pole pieces to be subjected to different tensions when the width is the same, and to move laterally on the roller surface or the roller surface. Second, during the rolling and slitting process, because the pole pieces are subjected to different tensions and the friction between them and the rollers due to slight differences in the pole piece surfaces is inconsistent, problems such as overlapping pole pieces breaking due to rolling, wrinkling, squeezing, and unstable slitting width may occur. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a device for simultaneously correcting multiple pole pieces, which has more stable unit pole piece tension, prevents pole pieces from moving on the roller surface, and can ensure the accuracy of the cutting width or position required for multiple pole pieces.

[0005] The technical solution of the utility model is to provide a device for simultaneously correcting the deviation of multiple pole pieces, comprising a frame, two deviation correction and separation implementation mechanisms arranged on the frame along the forward direction of the pole pieces, at least two passing rollers, and a first combining roller, a first floating roller assembly is arranged in front of the deviation correction and separation implementation mechanism, each of the deviation correction and separation implementation mechanisms and at least one passing roller forms a deviation correction circuit, the first pole piece group includes a plurality of independent unit pole pieces, the second pole piece group includes a plurality of independent unit pole pieces, the first pole piece group and the second pole piece group move on two deviation correction circuits respectively, and merge on the first combining roller.

[0006] As an improvement of the present utility model, the correcting separation implementation mechanism includes a correcting separation mounting plate, a first correcting actuator located on the correcting separation mounting plate and having a number equal to the unit pole pieces of the first pole piece group or the second pole piece group, a first correcting sensor having a number equal to and one-to-one correspondence with the first correcting actuator, and a first position adjustment mechanism for adjusting the position of the first correcting sensor, the first correcting sensor being used to sense the position of the unit pole piece, and the first correcting actuator being used to correct the unit pole piece.

[0007] As an improvement of the present utility model, the first correction actuator includes a correction actuator seat, a motor, a connecting rod, a hinge, a mounting plate, and a pair of correction rollers located in the correction actuator seat, the motor is connected to the connecting rod and can drive the connecting rod to move, the mounting plate is installed on the connecting rod, the hinge is installed under the mounting plate and is used to constrain the mounting plate, and a pair of correction rollers are installed on the mounting plate.

[0008] As an improvement of the utility model, it further comprises a swing roller assembly, and the swing roller assembly is arranged behind the first closing roller.

[0009] As an improvement of the utility model, it further comprises a tension component, and the tension component is arranged behind the swing roller component.

[0010] Another technical solution of the utility model is: to provide a device for simultaneously correcting multiple pole pieces, including a frame, two correction and guiding implementation mechanisms arranged on the frame along the forward direction of the pole piece, at least two passing rollers, and a first combining roller, each of the correction and guiding implementation mechanisms and at least one passing roller forms a correction circuit, the first pole piece group includes a plurality of independent unit pole pieces, the second pole piece group includes a plurality of independent unit pole pieces, the first pole piece group and the second pole piece group move on two correction circuits respectively, and merge on the first combining roller.

[0011] As an improvement of the present utility model, the correction and guiding implementation mechanism includes a correction and guiding mounting plate, a second correction actuator located on the correction and guiding mounting plate and having a number equal to the unit pole pieces of the first pole piece group or the second pole piece group, a second correction sensor having a number equal to and one-to-one correspondence with the second correction actuator, and a second position adjustment mechanism for adjusting the position of the second correction sensor, the second correction sensor being used to sense the position of the unit pole piece, and the second correction actuator being used to correct the unit pole piece.

[0012] As an improvement of the present invention, the second deviation-correcting actuator has the same structure as the first deviation-correcting actuator.

[0013] As an improvement of the utility model, it further comprises a second closing roller, wherein the second closing roller is arranged in front of the deviation correction and guiding implementation mechanism.

[0014] As an improvement of the utility model, it further comprises a swing roller assembly, and the swing roller assembly is arranged in front of the second closing roller.

[0015] As an improvement of the utility model, it further comprises a tension component, and the tension component is arranged in front of the swing roller component.

[0016] As an improvement of the utility model, it further comprises a second floating roller assembly, wherein the second floating roller assembly is arranged in front of the tension assembly.

[0017] The utility model includes a frame, two deviation correction and separation implementation mechanisms arranged along the forward direction of the pole piece on the frame, at least two passing rollers, and a first closing roller. A first floating roller assembly is arranged in front of the deviation correction and separation implementation mechanism. Each of the deviation correction and separation implementation mechanisms and at least one passing roller form a deviation correction line. The first pole piece group includes a plurality of independent unit pole pieces, and the second pole piece group includes a plurality of independent unit pole pieces. The first pole piece group and the second pole piece group move on two deviation correction lines respectively and merge on the first closing roller. In the utility model, the floating roller assembly is used to ensure the stability of the tension of the unit pole piece, and the change of the pole piece length caused by the different longitudinal extensions of the plurality of pole pieces is compatible, so as to prevent the plurality of pole pieces from moving on the roller surface; the deviation correction and separation implementation mechanism changes the lateral position of the plurality of pole pieces individually through the process deviation correction system, so that the plurality of pole pieces produce accurate lateral movement to pull them to the correct position, avoid extrusion and overlap during the pole piece walking process, and ensure the accuracy of the slitting width or position required for the plurality of pole pieces. The passing rollers constitute the walking path of the plurality of pole pieces. Therefore, the utility model has the advantages of more stable tension of a unit pole piece, preventing the pole piece from moving on the roller surface, and ensuring the accuracy of the cutting width or position required for multiple pole pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the planar structure of an implementation method of the utility model.

[0019] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure.

[0020] Figure 3 It is a schematic diagram of the planar structure of the pole piece and the pole piece group in the utility model.

[0021] Figure 4 yes Figure 2 Schematic diagram of the three-dimensional structure of the deviation correction and separation implementation mechanism.

[0022] Figure 5 yes Figure 4 Schematic diagram of the partially exploded three-dimensional structure of the first correcting actuator.

[0023] Figure 6 yes Figure 5 Schematic diagram of the further decomposed three-dimensional structure.

[0024] Figure 7 yes Figure 6 Schematic diagram of the fully assembled three-dimensional structure.

[0025] Figure 8 yes Figure 2 A schematic diagram of the three-dimensional structure of the first floating roller assembly.

[0026] Fig. 9yes Figure 2 Schematic diagram of the three-dimensional structure of the swing roller assembly.

[0027] Fig.10 It is a schematic diagram of the planar structure of the second embodiment of the utility model.

[0028] Fig.11 yes Fig.10 Schematic diagram of the three-dimensional structure.

[0029] Fig.12 yes Fig.11 Schematic diagram of the three-dimensional structure of the central correction and guidance implementation mechanism.

[0030] Fig.13 yes Fig.11 A schematic diagram of the three-dimensional structure of the second floating roller assembly. DETAILED DESCRIPTION

[0031] The utility model provides a device for simultaneously correcting the deviation of multiple pole pieces. Figures 1 to 9 The first embodiment of a device for simultaneously correcting the deviation of multiple pole pieces is shown. Figures 1 to 3 , including a frame 30, two deviation correction and separation implementation mechanisms 33, two over-rollers 34, and a first closing roller 35 arranged on the frame 30 along the forward direction of the pole piece 9, a first floating roller assembly 32 is arranged in front of the deviation correction and separation implementation mechanism 33, each of the deviation correction and separation implementation mechanisms 33 and an over-roller 34 form a deviation correction line, the first pole piece group 91 includes three independent unit pole pieces 99, and the second pole piece group 92 includes three independent unit pole pieces 99 (such as Figure 3 As shown), the first pole piece group 91 and the second pole piece group 92 move on two deviation correction lines respectively and merge on the first closing roller 35. In this embodiment, preferably, it also includes a swing roller assembly 36 and a tension assembly 37. The swing roller assembly 36 is arranged behind the first closing roller 35, and the tension assembly 37 is arranged behind the swing roller assembly 36. After the unit pole piece 99 is merged on the first closing roller 35, it passes through the swing roller assembly 36 and the tension assembly 37. Tension sensors are installed at both ends of the tension assembly 37, and the swing shaft of the tension swing roller is equipped with a potentiometer. The PLC controls the tension and speed closed loop of the pole piece from the first slitting machine 1 to the roller press through the tension sensor and the potentiometer feedback signal.

[0032] In this embodiment, specifically, Figure 4As shown, the deviation correction and separation implementation mechanism 33 includes a deviation correction and separation installation plate 331, three first deviation correction actuators 332 located on the deviation correction and separation installation plate 331, three first deviation correction sensors 333 corresponding to the first deviation correction actuators 332, and a first position adjustment mechanism 334 for adjusting the position of the first deviation correction sensor 333. The first deviation correction sensor 333 is used to sense the position of the unit pole piece 99. In this embodiment, different sensors can be replaced according to different pole pieces 9 and deviation correction accuracy requirements, including but not limited to ultrasonic sensors, photoelectric sensors, laser sensors, and CCD sensors. The first deviation correction actuator 332 is used to correct the corresponding unit pole piece 99. Specifically, after the unit pole pieces 99 of the first pole piece group 91 and the second pole piece group 92 are separated by the deviation correction and separation implementation mechanism 33, they are separated equidistantly in the horizontal direction to avoid mutual extrusion, friction, overlap, and other phenomena in the subsequent production process.

[0033] In this embodiment, specifically, Figures 5 to 7 As shown, the first deflection correction actuator 332 includes a deflection correction actuator seat 3321, a motor 3322, a connecting rod 3323, a hinge 3325, a mounting plate 3326, and a pair of deflection correction rollers 3327 located in the deflection correction actuator seat 3321, the motor 3322 is connected to the connecting rod 3323 through a motor shaft 33220 and can drive the connecting rod 3323 to move, the mounting plate 3326 is mounted on the connecting rod 3323, and the hinge 3325 is mounted on the mounting plate 3326 through a fixing plate 3328. A pair of deflection correction rollers 3327 are installed on the mounting plate 3326 below the mounting plate 3326 and are used to constrain the mounting plate 3326. Specifically, when the deflection correction actuator 332 in this embodiment is working, the motor 3322 drives the connecting rod 3323 to move through the motor shaft 33220, thereby driving the mounting plate 3326 to translate. Under the constraint of the hinge 3325, the deflection correction roller 3327 on the mounting plate 3326 rotates, thereby realizing the deflection correction of the unit pole piece 99 on the deflection correction roller 3327.

[0034] In this embodiment, Figure 8As shown, the main function of the first floating roller assembly 32 is to ensure the stability of the tension of the unit pole piece 99, prevent multiple unit pole pieces 99 from moving on the roller surface, and be compatible with the change in pole piece length caused by the different longitudinal extensions of multiple unit pole pieces 99. The first floating roller assembly 32 includes a first floating roller 321, a first cylinder 322 for driving the first floating roller 321, and two first floating roller over-rollers 323. The unit pole piece 99 enters the first floating roller 321 through the first floating roller over-rollers 323 in the arrangement of the upper and lower groups of first pole piece groups 91 and second pole piece groups 92. The first floating roller 321 is controlled by a pressure regulating valve to enter the first cylinder 322 at the same time. One way offsets the weight of the floating roller, and the other way ensures that the tension of multiple unit pole pieces 99 is consistent, and is compatible with the different longitudinal extensions of multiple unit pole pieces 99.

[0035] In this embodiment, specifically, Fig. 9 As shown, the main function of the swing roller assembly 36 is to provide stable tension to the multiple unit pole pieces 99 as a whole, so as to prevent the unit pole pieces 99 from swinging. The swing roller assembly 36 includes a swing roller frame 360, a swing roller 361, a swing shaft 362 equipped with a potentiometer 363, and a friction cylinder 364. The PLC controls the proportional valve (the proportional valve controls the output of the low friction cylinder 364 to make the swing roller 361 swing) through the tension sensor 372 of the tension assembly 37 and the feedback signal of the potentiometer 363, thereby controlling the tension and speed closed loop of the multiple unit pole pieces 99.

[0036] In this embodiment, specifically, the tension component 37 mainly functions to detect the overall tension exerted on multiple unit pole pieces 99 through a tension roller and a tension sensor. Specifically, the pole piece passing through the swing roller component 36 then passes into the tension component 37. The tension component 37 includes a tension detection roller 371. Tension sensors 372 are installed at both ends of the tension detection roller 371 to feedback the overall tension of the multiple pole pieces.

[0037] The utility model can also be set as a second embodiment (such as Figures 10 to 13As shown), the second embodiment is substantially the same as the first embodiment, except that it includes a frame 30, two deflection correction and guiding implementation mechanisms 53, two rollers 34, and a first closing roller 35 arranged on the frame 30 along the forward direction of the pole piece 9, each of the deflection correction and guiding implementation mechanisms 53 and a roller 34 form a deflection correction line, the first pole piece group 91 includes a plurality of independent unit pole pieces 99, the second pole piece group 92 includes a plurality of independent unit pole pieces 99, the first pole piece group 91 and the second pole piece group 92 move on two lines respectively, and merge on the first closing roller 35. In this embodiment, It also includes a second closing roller 58, a swing roller assembly 36, a tension assembly 37 and a second floating roller assembly 52. ​​The second closing roller 58 is arranged in front of the deviation correction and guiding implementation mechanism 53, the swing roller assembly 36 is arranged in front of the second closing roller 58, the tension assembly 37 is arranged in front of the swing roller assembly 36, and the second floating roller assembly 52 is arranged in front of the tension assembly 37. In this embodiment, tension sensors are installed at both ends of the tension assembly 37, and the swing shaft of the swing roller assembly 36 is equipped with a potentiometer. The PLC controls the tension and speed closed loop of the unit pole piece 99 from the roller press to the second slitting machine through the tension sensor and the potentiometer feedback signal (not visible in the figure).

[0038] In this embodiment, specifically, Fig.12 As shown, the deflection correction and guiding implementation mechanism 53 includes a deflection correction and guiding installation plate 531, three second deflection correction actuators 532 located on the deflection correction and guiding installation plate 531, three second deflection correction sensors 533 arranged one by one corresponding to the second deflection correction actuators 532, and a second position adjustment mechanism 534 for adjusting the position of the second deflection correction sensor 533, the second deflection correction sensor 533 is used to sense the position of the unit pole piece 99, and the second deflection correction actuator 532 is used to correct the unit pole piece 99. Different sensors can be replaced according to different pole pieces and deflection correction accuracy requirements, including but not limited to ultrasonic sensors. Wave sensor, photoelectric sensor, laser sensor, CCD sensor; Specifically, in this embodiment, after the unit pole piece 99 is merged by the second closing roller 58, the first pole piece group 91 and the second pole piece group 92 of the upper and lower groups enter the deflection correction and guiding implementation mechanism 53 again, and the deflection correction and guiding implementation mechanism 53 corrects the previous lateral position deviation of the unit pole piece 99, so that the lateral position of each unit pole piece 99 corresponds to the centering slitting position of the second slitting knife holder of the second slitting machine, so that multiple unit pole pieces 99 produce accurate lateral movement to pull them to the correct position, ensuring the accuracy of the secondary slitting width or position. The two groups of pole pieces are merged on the first closing roller 35 and then enter the second slitting machine (not visible in the figure).

[0039] In this embodiment, specifically, the second correcting actuator 532 has the same structure as the first correcting actuator 332, which will not be described in detail herein.

[0040] like Fig.13 As shown, the second floating roller assembly 52 is mainly used to ensure the stability of the tension of the unit pole piece 99 and to accommodate the change in pole piece length caused by the different longitudinal extensions of multiple unit pole pieces 99. The second floating roller assembly 52 includes a second floating roller 521, a second cylinder 522 for driving the second floating roller 521, and a second floating roller over-roller 523. The unit pole piece 99 enters the second floating roller 521 through the second floating roller over-roller 523 in the arrangement of the upper and lower groups of the first pole piece group 91 and the second pole piece group 92. The second floating roller 521 is controlled by a pressure regulating valve to simultaneously enter the second cylinder 522 with two gas paths, one of which offsets the deadweight of the second floating roller 521, and the other ensures that the tension of multiple unit pole pieces 99 is consistent and accommodates the different longitudinal extensions of multiple unit pole pieces 99.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for simultaneously correcting the deviation of multiple pole pieces, characterized in that: The invention comprises a frame (30), two deviation correction and separation implementation mechanisms (33) arranged on the frame (30) along the forward direction of the pole piece (9), at least two passing rollers (34), and a first closing roller (35); a first floating roller assembly (32) is arranged in front of the deviation correction and separation implementation mechanism (33); each of the deviation correction and separation implementation mechanisms (33) and at least one passing roller (34) form a deviation correction line; a first pole piece group (91) comprises a plurality of independent unit pole pieces (99); a second pole piece group (92) comprises a plurality of independent unit pole pieces (99); the first pole piece group (91) and the second pole piece group (92) move on two deviation correction lines respectively and merge on the first closing roller (35).

2. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 1, characterized in that: The deflection correction and separation implementation mechanism (33) comprises a deflection correction and separation installation plate (331), first deflection correction actuators (332) located on the deflection correction and separation installation plate (331) and having a number equal to the number of unit pole pieces (99) of the first pole piece group (91) or the second pole piece group (92), first deflection correction sensors (333) having a number equal to and corresponding to the first deflection correction actuators (332), and a first position adjustment mechanism (334) for adjusting the position of the first deflection correction sensors (333), wherein the first deflection correction sensors (333) are used to sense the position of the unit pole piece (99), and the first deflection correction actuators (332) are used to correct the deflection of the unit pole piece (99).

3. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 2, characterized in that: The first deflection correction actuator (332) comprises a deflection correction actuator seat (3321), a motor (3322) located inside the deflection correction actuator seat (3321), a connecting rod (3323), a hinge (3325), a mounting plate (3326), and a pair of deflection correction rollers (3327), wherein the motor (3322) is connected to the connecting rod (3323) and can drive the connecting rod (3323) to move, the mounting plate (3326) is mounted on the connecting rod (3323), the hinge (3325) is mounted below the mounting plate (3326) and is used to constrain the mounting plate (3326), and the pair of deflection correction rollers (3327) are mounted on the mounting plate (3326).

4. The device for simultaneously correcting the deviation of multiple pole pieces according to any one of claims 1 to 3, characterized in that: It also comprises a swing roller assembly (36), wherein the swing roller assembly (36) is arranged behind the first closing roller (35).

5. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 4, characterized in that: It also comprises a tension component (37), wherein the tension component (37) is arranged behind the swing roller component (36).

6. A device for simultaneously correcting the deviation of multiple pole pieces, characterized in that: The invention comprises a frame (30), two deflection correction and guiding implementation mechanisms (53) arranged on the frame (30) along the forward direction of the pole piece (9), at least two passing rollers (34), and a first closing roller (35), wherein each of the deflection correction and guiding implementation mechanisms (53) and at least one passing roller (34) form a deflection correction line, the first pole piece group (91) comprises a plurality of independent unit pole pieces (99), the second pole piece group (92) comprises a plurality of independent unit pole pieces (99), the first pole piece group (91) and the second pole piece group (92) respectively move on two deflection correction lines and merge on the first closing roller (35).

7. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 6, characterized in that: The deflection correction and guiding implementation mechanism (53) comprises a deflection correction and guiding installation plate (531), second deflection correction actuators (532) located on the deflection correction and guiding installation plate (531) and having a number equal to the number of unit pole pieces (99) of the first pole piece group (91) or the second pole piece group (92), second deflection correction sensors (533) having a number equal to and arranged in a one-to-one correspondence with the second deflection correction actuators (532), and a second position adjustment mechanism (534) for adjusting the position of the second deflection correction sensors (533), wherein the second deflection correction sensors (533) are used to sense the position of the unit pole piece (99), and the second deflection correction actuators (532) are used to correct the deflection of the unit pole piece (99).

8. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 7, characterized in that: The second deviation-correcting actuator (532) has the same structure as the first deviation-correcting actuator (332).

9. The device for simultaneously correcting the deviation of multiple pole pieces according to any one of claims 6 to 8, characterized in that: It also includes a second closing roller (58), wherein the second closing roller (58) is arranged in front of the deviation correction and guiding implementation mechanism (53).

10. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 9, characterized in that: It also includes a swing roller assembly (36), wherein the swing roller assembly (36) is arranged in front of the second closing roller (58).

11. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 10, characterized in that: It also comprises a tension component (37), wherein the tension component (37) is arranged in front of the swing roller component (36).

12. The device for simultaneously correcting the deviation of multiple pole pieces according to claim 11, characterized in that: It also includes a second floating roller assembly (52), wherein the second floating roller assembly (52) is arranged in front of the tension assembly (37).

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