Dry-method membrane compounding device

Abstract

The utility model discloses a dry-method diaphragm compounding device which comprises a first diaphragm unreeling mechanism, a second diaphragm unreeling mechanism, a copper foil unreeling mechanism, a calendaring mechanism and a reeling mechanism which are sequentially arranged from left to right, the copper foil unwinding mechanism comprises a copper foil unwinding side plate, a copper foil unwinding shaft and a copper foil unwinding driving part, the copper foil unwinding side plate is provided with an unwinding vacancy, the copper foil unwinding shaft is located in front of the copper foil unwinding side plate, one end of the copper foil unwinding shaft penetrates through the unwinding vacancy and is connected with the copper foil unwinding driving part, and the other end of the copper foil unwinding shaft is connected with the copper foil unwinding driving part. The copper foil unwinding mechanism comprises a copper foil unwinding shaft and a copper foil unwinding driving piece, the copper foil unwinding driving piece is used for driving the copper foil unwinding shaft to rotate, the copper foil unwinding mechanism further comprises a copper foil unwinding transverse plate and a copper foil deviation rectifying assembly, and the copper foil deviation rectifying assembly comprises a first deviation rectifying driving piece and a deviation rectifying connecting block. According to the utility model, the copper foil can be automatically rectified, and the quality of the dry-method pole piece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a dry-process membrane composite device. Background Art

[0002] The existing composite device for preparing dry-process electrodes generally includes a first film unwinding mechanism, a second film unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism and a winding mechanism. The first film unwinding mechanism is used to unwind the first dry-process film, the second film unwinding mechanism is used to unwind the second dry-process film, the copper foil unwinding mechanism is used to unwind the copper foil, the calendering mechanism is used to composite the first dry-process film and the second dry-process film on both sides of the copper foil respectively to obtain the dry-process electrode, and the winding mechanism is used to wind up the dry-process electrode. The copper foil unwinding mechanism includes a copper foil unwinding side plate, a copper foil unwinding shaft and a copper foil unwinding driving member. The copper foil unwinding shaft is located in front of the copper foil unwinding side plate, and one end of the copper foil unwinding shaft passes through the unwinding space of the copper foil unwinding side plate and is connected to the copper foil unwinding driving member. The copper foil unwinding driving member is used to drive the copper foil unwinding shaft to rotate, so that the copper foil can be unwound through the copper foil unwinding shaft. A rotating bearing is provided in the unwinding space of the copper foil unwinding side plate, and the rotating bearing sleeve is arranged on the outer periphery of the copper foil unwinding shaft to provide support for the rotation of the copper foil unwinding shaft. The copper foil unwinding mechanism of this structure only plays the role of unwinding the copper foil. When the copper foil deviates forward and backward, the copper foil unwinding mechanism cannot realize automatic deviation correction for the copper foil, resulting in that the two side edges of the copper foil in the length direction cannot be aligned with the two side edges of the first dry film in the length direction and the two side edges of the second dry film in the length direction, thereby affecting the quality of the prepared dry electrode. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a dry-process diaphragm composite device, which can realize automatic deviation correction of copper foil and ensure the quality of dry-process electrodes.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A dry film composite device comprises a first film unwinding mechanism, a second film unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism and a winding mechanism, wherein the winding mechanism, the calendering mechanism, the second film unwinding mechanism and the copper foil unwinding mechanism are arranged in sequence from left to right, the copper foil unwinding mechanism comprises a copper foil unwinding side plate, a copper foil unwinding shaft and a copper foil unwinding driving member, the copper foil unwinding side plate has an unwinding space, the copper foil unwinding shaft is located in front of the copper foil unwinding side plate, and one end of the copper foil unwinding shaft passes through the unwinding space and is connected to the copper foil unwinding driving member, the copper foil unwinding driving member is used to drive the copper foil unwinding shaft to rotate, the copper foil unwinding mechanism also comprises a copper foil unwinding cross plate and a copper foil deviation correction component, the copper foil The unwinding transverse plate is located behind the copper foil unwinding side plate and one end of the copper foil unwinding transverse plate is located in the unwinding space, the copper foil unwinding shaft is rotatably arranged at the top of the copper foil unwinding transverse plate, and the copper foil unwinding driving member is arranged at the other end of the copper foil unwinding transverse plate, and the copper foil correction assembly includes a first correction driving member and a correction connecting block, one end of the correction connecting block is connected to the end of the output shaft of the first correction driving member, and the other end of the correction connecting block is connected to the bottom end of the copper foil unwinding transverse plate, and the first correction driving member is used to drive the correction connecting block to move forward and backward, thereby driving the copper foil unwinding transverse plate to move forward and backward, and then driving the copper foil unwinding shaft and the copper foil unwinding driving member to move forward and backward.

[0006] The beneficial effect of the utility model is as follows: the utility model provides a copper foil unwinding horizontal plate and a copper foil correction component, and the copper foil correction component includes a first correction driving component and a correction connecting block. When the copper foil is unwound by the copper foil unwinding shaft, when the position of the copper foil shifts forward and backward, the first correction driving component drives the correction connecting block to move forward and backward, thereby driving the copper foil unwinding horizontal plate to move forward and backward, and further driving the copper foil unwinding shaft and the copper foil unwinding driving component to move forward and backward, and further driving the copper foil to move forward and backward, thereby correcting the position of the copper foil, thereby realizing automatic correction of the copper foil, ensuring that the two side edges of the copper foil are aligned with the two side edges of the first dry-process diaphragm and the two side edges of the second dry-process diaphragm, thereby ensuring the quality of the dry-process electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0008] Figure 1 This is a schematic structural diagram of a dry-process membrane composite device provided by an embodiment of the utility model;

[0009] Figure 2 yes Figure 1 A cross-sectional schematic diagram of a dry-process membrane composite device is shown;

[0010] Figure 3 yes Figure 1A schematic structural diagram of a first film unwinding mechanism and a calendering mechanism of a dry film composite device;

[0011] Figure 4 yes Figure 3 A schematic cross-sectional view of the first film unwinding mechanism and the calendering mechanism;

[0012] Figure 5 yes Figure 1 A schematic structural diagram of a second film unwinding mechanism of the dry film composite device at a first angle;

[0013] Figure 6 yes Figure 5 A schematic structural diagram of a second film unwinding mechanism at a second angle is shown;

[0014] Figure 7 yes Figure 1 A schematic structural diagram of a copper foil unwinding mechanism of a dry film composite device at a first angle;

[0015] Figure 8 yes Figure 7 A schematic structural diagram of a copper foil unwinding mechanism at a second angle;

[0016] Fig. 9 yes Figure 7 The schematic diagram of the structure of the copper foil unwinding mechanism shown in the figure is a schematic diagram of the structure of the copper foil unwinding mechanism after removing the copper foil unwinding side plate;

[0017] Fig.10 yes Figure 7 A schematic diagram of the structure of the copper foil unwinding shaft, copper foil unwinding driving member, copper foil unwinding horizontal plate and copper foil deviation correction assembly of the copper foil unwinding mechanism shown;

[0018] Fig.11 yes Figure 1 A schematic structural diagram of a first tension detection mechanism and a swing rod mechanism of the dry film composite device shown;

[0019] Fig.12 yes Fig.11 The structural diagram of the swing rod mechanism shown;

[0020] Fig.13 yes Figure 1 A schematic structural diagram of a first angle of the correction mechanism of the dry film composite device shown;

[0021] Fig.14 yes Fig.13 A schematic structural diagram of a second angle of the deviation correction mechanism shown;

[0022] Fig.15 yes Fig.13 A schematic structural diagram of the third angle of the deviation correction mechanism shown;

[0023] Fig.16 yes Figure 1 A schematic structural diagram of a first angle of the winding mechanism and the second tension detection mechanism of the dry film composite device shown;

[0024] Fig.17 yes Fig.16 A schematic structural diagram of a second angle of the winding mechanism and the second tension detection mechanism shown;

[0025] Fig.18 yes Fig.16 The schematic diagram of the structure of the winding cross plate, winding support plate and winding correction assembly of the winding mechanism shown. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0027] Please refer to Figure 1 Figure 2 The utility model provides a dry film composite device according to an embodiment, comprising a bottom plate 1, a chassis 2, a first film unwinding mechanism 10, a second film unwinding mechanism 20, a copper foil unwinding mechanism 30, a calendering mechanism 40, a rewinding mechanism 50, a first tension detection mechanism 80, a swing rod mechanism 90, a deviation correction mechanism 100 and a second tension detection mechanism 140. The chassis 2 is arranged at the top of the bottom plate 1. The rewinding mechanism 50, the calendering mechanism 40, the second film unwinding mechanism 20 and the copper foil unwinding mechanism 30 are arranged in sequence from left to right. The second film unwinding mechanism 10 is arranged at the top of the calendering mechanism 40, and the second film unwinding mechanism 20 is close to the calendering mechanism 40.

[0028] Combination Figure 3 and Figure 4As shown, the first film unwinding mechanism 10 is used to unwind the first dry film 201. The first film unwinding mechanism 10 includes a first film side plate 11, a first film unwinding shaft 12 and a first film unwinding driving member. The first film side plate 11 is arranged on one side of the first vertical plate 111 and is located in front of the chassis 2. The first film unwinding shaft 12 is located in front of the first film side plate 11, and one end of the first film unwinding shaft 12 passes through the through hole of the first film side plate 11 and is connected to the first film unwinding driving member. The first film unwinding driving member is used to drive the first film unwinding shaft 12 to rotate. After the first reel 2011 wound with the first dry film 201 is installed on the first film unwinding shaft 12, the first dry film 201 can be unwound by rotating the first film unwinding shaft 12. A first unwinding bearing is disposed in the through hole of the first diaphragm side plate 11 , and the first unwinding bearing is sleeved on the outer periphery of the first diaphragm unwinding shaft 12 to provide rotation support for the first diaphragm unwinding shaft 12 .

[0029] The first diaphragm unwinding driving member includes a first diaphragm unwinding motor 131 and a first diaphragm unwinding synchronous belt module. The first diaphragm unwinding motor 131 is arranged on one side of the first vertical plate 111 and penetrates the empty space of the first diaphragm side plate 11. The first diaphragm unwinding synchronous belt module includes a first diaphragm unwinding driving wheel, a first diaphragm unwinding driven wheel and a first diaphragm unwinding synchronous belt sleeved on the outer periphery of the first diaphragm unwinding driving wheel and the first diaphragm unwinding driven wheel. The first diaphragm unwinding driving wheel is sleeved on the outer periphery of the end of the output shaft of the first diaphragm unwinding motor 131, and the first diaphragm unwinding driven wheel is sleeved on the outer periphery of one end of the first diaphragm unwinding shaft 12. The first diaphragm unwinding motor 131 is used to drive the first diaphragm unwinding driving wheel to rotate, and under the action of the first diaphragm unwinding driven wheel and the first diaphragm unwinding synchronous belt, the first diaphragm unwinding shaft 12 can be driven to rotate.

[0030] The calendering mechanism 40 is used to laminate the first dry film 201 and the second dry film 202 on both sides of the copper foil 203 to obtain the dry electrode 204. The calendering mechanism 40 includes two calendering mounting frames 41 arranged in a front-to-back manner, a lower calendering roller 42, an upper calendering roller 43, a lower calendering roller driving member, an upper calendering roller driving member, and two lifting driving members 48. Of the two calendering mounting frames 41, the rear calendering mounting frame 41 is arranged on the front side of the chassis 2.

[0031] Two calendering mounting frames 41 are arranged at the top of the bottom plate 1. The first vertical plate 111 is arranged on one side of the second vertical plate 112, and the second vertical plate 112 is located above the two calendering mounting frames 41. The two ends of the second vertical plate 112 are respectively arranged at the top of the two calendering mounting frames 41 through two third vertical plates 113. The calendering mounting frame 41 has an installation space 411, and the length direction of the installation space 411 is the same as the height direction of the calendering mounting frame 41. The lower calendering roller 42 is located between the two calendering mounting frames 41, and the two ends of the lower calendering roller 42 are respectively rotatably arranged on two lower calendering bearing seats 421, and the two lower calendering bearing seats 421 are respectively slidably arranged in the installation spaces 411 of the two calendering mounting frames 41 and the two are arranged front and back relative to each other. In this embodiment, two calendering slide rails 4111 are respectively provided on the inner walls on both sides of the installation space 411, the length direction of the calendering slide rails 4111 is the same as the height direction of the calendering mounting frame 41, and the calendering slide rails 4111 are slidably matched with calendering sliders 4112, and the calendering sliders 4112 of the two calendering slide rails 4111 are respectively arranged on both sides of the corresponding lower calendering bearing seat 421. The number of calendering sliders 4112 can be set according to actual conditions.

[0032] The upper calendering roller 43 is located between the two calendering mounting frames 41, and the upper calendering roller 43 and the lower calendering roller 42 are arranged opposite to each other in the upper and lower directions with a calendering gap therebetween. The two ends of the upper calendering roller 43 are rotatably arranged on the two upper calendering bearing seats 431, respectively, and the two upper calendering bearing seats 431 are respectively fixedly arranged in the installation spaces 411 of the two calendering mounting frames 41, and the two are arranged opposite to each other in the front and back directions. The two upper calendering bearing seats 431 are respectively located above the two lower calendering bearing seats 421. In this embodiment, the two sides of the upper calendering bearing seats 431 are respectively fixedly arranged on the inner walls of the corresponding installation spaces 411 by, for example, welding or screw locking.

[0033] The lower calendering driving member is used to drive the lower calendering roller 42 to rotate. Specifically, the lower calendering driving member includes a lower calendering motor 441 and a lower calendering reducer 442. The lower calendering reducer 442 is arranged on the outer side of the lower calendering bearing seat 421 located at the rear (the outer side is the side where the two lower calendering bearing seats 421 are away from each other) through the lower reducer seat 4421. The lower calendering motor 441 is arranged on the lower calendering reducer 442. The output shaft of the lower calendering motor 441 is connected to the input shaft of the lower calendering reducer 442. One end of the lower calendering roller 42 protrudes from the outer side of the calendering mounting frame 41 located at the rear (the outer side is the side where the two calendering mounting frames 41 are away from each other) and is connected to the output shaft of the lower calendering reducer 442. The lower calendering motor 441 is used to drive the lower calendering roller 42 to rotate through the lower calendering reducer 442. The upper calendering driving member is used to drive the upper calendering roller 43 to rotate. The rotation directions of the upper calendering roller 43 and the lower calendering roller 42 are opposite. Specifically, the upper calendering driving member includes an upper calendering motor 451 and an upper calendering reducer 452. The upper calendering reducer 452 is arranged on the outer side of the upper calendering bearing seat 431 located at the rear (the outer side is the side away from the two upper calendering bearing seats 431) through the upper reducer seat 4521. The upper calendering motor 451 is arranged on the upper calendering reducer 452. The output shaft of the upper calendering motor 451 is connected to the input shaft of the upper calendering reducer 452. One end of the upper calendering roller 43 protrudes from the outer side of the calendering mounting frame 41 located at the rear and is connected to the output shaft of the upper calendering reducer 452. The upper calendering motor 451 is used to drive the upper calendering roller 43 to rotate through the upper calendering reducer 452. The lower reducer seat 4421 , the lower rolling motor 441 , the lower rolling reducer 442 , the upper reducer seat 4521 , the upper rolling motor 451 and the upper rolling reducer 452 are all located in the chassis 2 .

[0034] The jacking drive member 48 is a hydraulic cylinder. The two jacking drive members 48 are respectively arranged on the bottom of the installation space 411 of the two calendering mounting frames 41. The two lower calendering bearing seats 421 are respectively located above the two jacking drive members 48 and are respectively connected to the ends of the output shafts of the two jacking drive members 48. The two jacking drive members 48 are respectively used to drive the two lower calendering bearing seats 421 to move up and down, thereby driving the lower calendering roller 42 to move up and down. The lower calendering roller 42 moves upward, so that upward pressure can be applied through the lower calendering roller 42 to provide calendering pressure.

[0035] In this embodiment, two calendering pressure sensors are respectively provided between the ends of the output shafts of the two jacking driving members 48 and the two lower calendering bearing seats 421. The two jacking driving members 48 are used to drive the two lower calendering bearing seats 421 to move up and down through the two calendering pressure sensors. The calendering pressure sensors can detect the pressure applied upward by the lower calendering roller 42.

[0036] The other end of the lower calendering roller 42 protrudes from the outside of the calendering mounting frame 41 located in the front and is connected to a lower calendering joint 46. The rotation of the lower calendering roller 42 can drive the lower calendering joint 46 to rotate. A lower calendering oil passage is provided in the lower calendering roller 42, and the lower calendering oil passage is connected to the lower calendering joint 46. The other end of the upper calendering roller 43 protrudes from the outside of the calendering mounting frame 41 located in the front and is connected to an upper calendering joint 47. The rotation of the upper calendering roller 43 can drive the upper calendering joint 47 to rotate. An upper calendering oil passage is provided in the upper calendering roller 43, and the upper calendering oil passage is connected to the upper calendering joint 47. In actual application, hot oil can be introduced into the lower calendering oil circuit through the lower calendering joint 46 to keep the temperature of the roller surface of the lower calendering roller 42 constant. Hot oil can be introduced into the upper calendering oil circuit through the upper calendering joint 47 to keep the temperature of the roller surface of the upper calendering roller 43 constant, thereby ensuring the quality of the dry-process electrode 204 after calendering.

[0037] In this embodiment, first supporting rollers 491 are rotatably provided at both ends of the two calendering mounting frames 41. The first supporting rollers 491 are located to the right of the first film unwinding shaft 12. The first supporting rollers 491 are used to support the first dry film 201. Second supporting rollers 492 and third supporting rollers 493 are rotatably provided in sequence from top to bottom on one side of the two calendering mounting frames 41 close to the second film unwinding mechanism 20. The second supporting rollers 492 are used to support the copper foil 203, and the third supporting rollers 493 are used to support the second dry film 202.

[0038] Combination Figure 5 and Figure 6 As shown, the second film unwinding mechanism 20 is used to unwind the second dry film 202. The second film unwinding mechanism 20 includes a second film side plate 21, a second film unwinding shaft 22 and a second film unwinding driving member. The second film side plate 21 is arranged at the top of the bottom plate 1 and is located in front of the chassis 2. The second film unwinding shaft 22 is located in front of the second film side plate 21, and one end of the second film unwinding shaft 22 passes through the through hole of the second film side plate 21 and is connected to the second film unwinding driving member. The second film unwinding driving member is used to drive the second film unwinding shaft 22 to rotate. After the second reel 2021 wound with the second dry film 202 is installed on the second film unwinding shaft 22, the second dry film 202 can be unwound by rotating the second film unwinding shaft 22. In this embodiment, the first dry film 201 and the second dry film 202 are the same size and are the same type of dry film. A second unwinding bearing is disposed in the through hole of the second diaphragm side plate 21 . The second unwinding bearing is sleeved on the outer circumference of the second diaphragm unwinding shaft 22 to provide rotation support for the second diaphragm unwinding shaft 22 .

[0039] The second diaphragm unwinding driving member includes a second diaphragm unwinding motor 231 and a second diaphragm unwinding synchronous belt module. A mounting side plate 211 is provided at the rear of the second diaphragm side plate 21, and the mounting side plate 211 and the second diaphragm side plate 21 are connected by connecting columns 212, and the number of connecting columns 212 can be set according to actual conditions. The second diaphragm unwinding motor 231 is arranged on one side of the second diaphragm side plate 21 of the mounting vertical plate 211. The second diaphragm unwinding synchronous belt module includes a second diaphragm unwinding driving wheel 232, a second diaphragm unwinding driven wheel 233 and a second diaphragm unwinding synchronous belt 234 sleeved on the outer periphery of the second diaphragm unwinding driving wheel 232 and the second diaphragm unwinding driven wheel 233. The end of the output shaft of the second diaphragm unwinding motor 231 passes through the through hole of the mounting vertical plate 211 and is located between the mounting vertical plate 211 and the second diaphragm side plate 21. The second diaphragm unwinding driving wheel 232 is sleeved on the outer periphery of the end of the output shaft of the second diaphragm unwinding motor 231, and the second diaphragm unwinding driven wheel 233 is sleeved on the outer periphery of one end of the second diaphragm unwinding shaft 22. The second diaphragm unwinding motor 231 is used to drive the second diaphragm unwinding driving wheel 232 to rotate, and under the action of the first diaphragm unwinding driven wheel 233 and the first diaphragm unwinding synchronous belt 234, the second diaphragm unwinding shaft 22 can be driven to rotate.

[0040] Combination Figures 7 to 10 As shown, the copper foil unwinding mechanism 30 is used to unwind the copper foil 203 and to correct the copper foil 203. The copper foil unwinding mechanism 30 includes a copper foil unwinding side plate 31, a copper foil unwinding shaft 32, a copper foil unwinding driving member, a copper foil unwinding transverse plate 33, a copper foil correcting assembly 35 and a first correcting sensor 70.

[0041] The copper foil unwinding side plate 31 is arranged at the front side of the chassis 2. The copper foil unwinding side plate 31 has an unwinding space 311. The copper foil unwinding shaft 32 is located in front of the copper foil unwinding side plate 31, and one end of the copper foil unwinding shaft 32 passes through the unwinding space 311 and extends into the chassis 2, and is connected to the copper foil unwinding driving member, and the copper foil unwinding driving member is used to drive the copper foil unwinding shaft 32 to rotate. After the third reel wound with the copper foil 203 is installed on the copper foil unwinding shaft 32, the copper foil 203 can be unwound by rotating the copper foil unwinding shaft 32. The copper foil unwinding transverse plate 33 is located behind the copper foil unwinding side plate 21 and in the chassis 2, one end of the copper foil unwinding transverse plate 33 is located in the unwinding space 311, and the other end of the copper foil unwinding transverse plate 33 is provided with a copper foil unwinding driving member. The outer periphery of the copper foil unwinding shaft 32 is sleeved with two copper foil unwinding bearing seats 321 arranged at intervals. The two copper foil unwinding bearing seats 321 are respectively arranged at the top of the copper foil unwinding horizontal plate 33. The two copper foil unwinding bearing seats 321 provide support for the rotation of the copper foil unwinding shaft 32.

[0042] The copper foil unwinding driving member includes a copper foil unwinding vertical plate 341, a copper foil unwinding motor 342 and a copper foil unwinding synchronous belt module. The copper foil unwinding vertical plate 341 is arranged at the other end of the copper foil unwinding horizontal plate 33. The copper foil unwinding motor 342 is arranged on one side of the copper foil unwinding vertical plate 341 close to the copper foil unwinding side plate 31 and is located above the copper foil unwinding horizontal plate 33. The copper foil unwinding synchronous belt module includes a copper foil unwinding driving wheel 343, a copper foil unwinding driven wheel 344 and a copper foil unwinding synchronous belt 345 sleeved on the outer periphery of the copper foil unwinding driving wheel 343 and the copper foil unwinding driven wheel 344. The end of the output shaft of the copper foil unwinding motor 342 passes through the first through hole of the copper foil unwinding vertical plate 341 and is sleeved with the copper foil unwinding driving wheel 343. One end of the copper foil unwinding shaft 32 passes through the second through hole of the copper foil unwinding vertical plate 341 and is sleeved with the copper foil unwinding driven wheel 344. The copper foil unwinding motor 342 is used to drive the copper foil unwinding driving wheel 343 to rotate, thereby driving the copper foil unwinding shaft 32 to rotate through the copper foil unwinding driven wheel 344 and the copper foil unwinding synchronous belt 345.

[0043] The copper foil deflection correction assembly 35 includes a first deflection correction driving member 351 and a deflection correction connecting block 352. The copper foil unwinding cross plate 33 is slidably arranged at the top of the unwinding support plate 353, and the unwinding support plate 353 is arranged through the unwinding space 311. The unwinding support plate 353 is partially located in the chassis 2. An unwinding connecting plate 312 is arranged at the rear side of the copper foil unwinding side plate 31, and two unwinding ribs 354 are respectively arranged on both sides of the bottom end of the unwinding support plate 353, and the two unwinding ribs 354 are respectively arranged at the rear side of the unwinding connecting plate 312, so that the unwinding support plate 353 is connected to the rear side of the copper foil unwinding side plate 31 through the two unwinding ribs 354 and the unwinding connecting plate 312. The first deflection correction driving member 351 is a servo electric cylinder. The first deflection correction driving member 351 is located below the unwinding support plate 353 and is arranged on the rear side of the unwinding connecting plate 312. The first deflection correction driving member 351 is located between the two unwinding ribs 354. The unwinding support plate 353 has a through hole 3531, and the length direction of the through hole 3531 is the same as the length direction of the unwinding support plate 353. The bottom end of the copper foil unwinding horizontal plate 33 is provided with a mounting block 331, and the mounting block 331 is close to the other end of the copper foil unwinding horizontal plate 33. The deflection correction connecting block 352 is in a "Z" shape, one end of the deflection correction connecting block 352 is connected to the end of the output shaft of the first deflection correction driving member 351, and the other end of the deflection correction connecting block 352 passes through the through hole 3531 of the unwinding support plate 353 and is connected to the bottom end of the mounting block 331. The first deviation correction driving member 351 is used to drive the deviation correction connecting block 352 to move forward and backward between the two ends of the through hole 3531 of the unwinding support plate 353, so that the copper foil unwinding horizontal plate 33 can be driven to move forward and backward through the mounting block 331, and then the copper foil unwinding shaft 32, the copper foil unwinding motor 342, the copper foil unwinding vertical plate 341, and the copper foil unwinding synchronous belt module can be driven to move forward and backward. In actual application, the copper foil unwinding shaft 32 moves forward and backward, so that the position of the copper foil 203 can be corrected, thereby correcting the deviation of the copper foil 203, ensuring that the two side edges of the copper foil 203 are aligned with the two side edges of the first dry film 201 and the two side edges of the second dry film 202, and ensuring the quality of the dry electrode 204. The unwinding support plate 353 is provided to provide support for the copper foil unwinding horizontal plate 33 to improve the stability of the movement of the copper foil unwinding horizontal plate 33.

[0044] The copper foil unwinding horizontal plate 33 is slidably arranged at the top of the unwinding support plate 353. Specifically, two unwinding slide rails 3532 are arranged opposite to each other on the top of the unwinding support plate 353. The length direction of the unwinding slide rails 3532 is the same as the length direction of the unwinding support plate 353. The unwinding slide rails 3532 are slidably matched with unwinding sliders 3533. The unwinding sliders 3533 of the two unwinding slide rails 3532 are respectively arranged at the bottom of the copper foil unwinding horizontal plate 33. The number of unwinding sliders 3533 can be set according to actual conditions.

[0045] A copper foil roller 36 is provided on the front side of the copper foil unwinding side plate 31 above the copper foil unwinding shaft 32, and the copper foil roller 36 is used to support the copper foil 203. Specifically, the two ends of the copper foil roller 36 are rotatably arranged on two copper foil roller bearing seats 361. A copper foil roller frame 362 is provided on the front side of the copper foil unwinding side plate 31, and the two copper foil roller bearing seats 361 are slidably arranged on the top of the copper foil roller frame 362 through conventional slide rails 3611 and sliders 3612 that slide with the slide rails 3611. The copper foil roller frame 362 is tilted upward. A roller installation shaft 36a is formed at one end of the copper foil roller 36, and the roller installation shaft 36a is arranged to penetrate the through hole of the copper foil unwinding side plate 31, and a first roller connection block 363 is arranged at the end of the roller installation shaft 36a away from the copper foil roller 36, and the first roller connection block 363 is connected to the top of the second roller connection block 364, and the bottom of the second roller connection block 364 is connected to one side of the copper foil unwinding transverse plate 33. The forward and backward movement of the copper foil unwinding transverse plate 33 can drive the second roller connection block 364 and the first roller connection block 363 to move forward and backward, so that the copper foil roller 36 can be driven to move forward and backward relative to the copper foil roller frame 362 through the roller installation shaft 36a.

[0046] The first deflection correcting sensor 70 is used to detect the position of the copper foil 203, and the first deflection correcting sensor 70 is arranged on the front side of the copper foil unwinding side plate 31. The first deflection correcting sensor 70 is located above the copper foil unwinding shaft 32 and to the left of the copper foil unwinding shaft 32, and the copper foil passing roller 36 is located to the right of the second deflection correcting sensor 70. In this embodiment, the first deflection correcting sensor 70 is a horseshoe-shaped ultrasonic sensor, and a sensor connecting member 73 is provided on the front side of the copper foil unwinding side plate 31. A sensor mounting block 71 is provided at the closed end of the first deflection correcting sensor 70, and the sensor mounting block 71 is connected to one end of the sensor mounting member 72. The sensor mounting member 72 is provided with a hole, and the sensor mounting member 72 is sleeved on the outer periphery of the sensor connecting member 73 through its hole. In actual application, the first deflection correction sensor 70 corresponds to one side edge of the copper foil 203. The copper foil 203 unwound by the copper foil unwinding shaft 32 first passes over the top of the copper foil roller 36, and then one side edge of the copper foil 203 passes through the inside of the first deflection correction sensor 70. The first deflection correction sensor 70 can be used to detect the position of one side edge of the copper foil 203, so that the position of the copper foil 203 can be detected. When it is detected that the position of the copper foil 203 is offset forward and backward, such as offset forward, the copper foil unwinding shaft 32 is driven backward by the first deflection correction drive component 351, so that the position of the copper foil 203 can be corrected. When it is detected that the copper foil 203 is offset backward, the copper foil unwinding shaft 32 is driven forward by the first deflection correction drive component 351, so that the position of the copper foil 203 can be corrected.

[0047] Combination Fig.11 and Fig.12As shown, the first tension detection mechanism 80 and the swing rod mechanism 90 are sequentially arranged from left to right between the rolling mechanism 40 and the copper foil unwinding mechanism 30. The first tension detection mechanism 80 is used to detect the tension of the copper foil 203. The swing rod mechanism 90 is used to adjust the tension of the copper foil 203 according to the detection result of the first tension detection mechanism 80, so that the copper foil 203 is not too tight or too loose.

[0048] The first tension detection mechanism 80 includes a first tension detection roller 81. One end of the first tension detection roller 81 is rotatably disposed on the front side of the support side plate 91 through a first tension bearing seat, and the support side plate 91 is disposed on the front side of the chassis 2. The other end of the first tension detection roller 81 is rotatably disposed on one end of a first detection beam 83 through a second tension bearing seat 82, and the other end of the first detection beam 83 is disposed on the front side of the support side plate 91. The first detection beam 83 is located above the first tension detection roller 81. The first tension detection roller 81 is used to detect the tension of the copper foil 203.

[0049] The swing bar mechanism 90 includes a rotating shaft 93, a U-shaped swing bar frame 92, a swing roller 96, and a swing bar driving member 97. The opening of the swing bar frame 92 faces upward, and one end of the swing bar frame 92 is arranged at the front side of the supporting side plate 91. Two swing bar mounting holes are respectively arranged at both ends of the swing bar frame 92, the rotating shaft 93 is located in the swing bar frame 92, and the two ends of the rotating shaft 93 are rotatably arranged in the two swing bar mounting holes through a rotating shaft bearing, and one end of the rotating shaft 93 passes through the through hole of the supporting side plate 91 and extends into the chassis 2, and the rotating shaft connecting block 98 is located in the chassis 2, one end of the rotating shaft connecting block 98 is connected to one end of the rotating shaft 93, and the other end of the rotating shaft connecting block 98 extends to the right. The swing rod driving member 97 is located in the chassis 2. The swing rod driving member 97 is a cylinder. The swing rod driving member 97 is arranged on the front inner wall of the chassis 2 through a cylinder seat. The end of the output shaft of the swing rod driving member 97 is connected to the side of the rotating shaft connecting block 98 away from the swing rod frame 92. Two swing rod mounting plates 94 are sleeved on the outer periphery of the rotating shaft 93. The two swing rod mounting plates 94 are spaced apart along the axial direction of the rotating shaft 93. A swing rod connecting block 95 is arranged between one end of the two swing rod mounting plates 94, and a swing roller 96 is rotatably arranged between the other ends of the two swing rod mounting plates 94. The swing rod driving member 97 is used to drive the rotating shaft connecting block 1570 to swing up and down, thereby driving the rotating shaft 93 to rotate, thereby driving the two swing rod mounting plates 94 to rotate, and further driving the swing rod connecting block 95 and the swing roller 96 to swing up and down around the axis of the rotating shaft 93. By adjusting the output force of the swing rod driving member 97 , the swing roller 96 can be driven to swing up and down, thereby adjusting the tension of the copper foil 203 .

[0050] A swing roller 96 is rotatably arranged between the other ends of the two swing arm mounting plates 94. Specifically, mounting holes are respectively arranged at the other ends of the swing arm mounting plates 94, and both ends of the swing roller 96 are rotatably arranged in the mounting holes at the other ends of the two swing arm mounting plates 94 through a swing roller bearing.

[0051] In this embodiment, a support member 981 is provided at one end of the rotating shaft connecting block 98, and a tooth portion is provided on the outer periphery of the support member 981, which meshes with a gear 982. The gear 982 is sleeved on the outer periphery of one end of the gear shaft, and the gear shaft is rotatably arranged on a gear seat 983, and the gear seat 983 is arranged on the front inner wall of the chassis 2. The up and down swinging of the rotating shaft connecting block 98 can drive the support member 981 to rotate, thereby driving the gear 982 to rotate. A potentiometer is connected to the other end of the gear shaft, and the gear 982 is driven to rotate through the rotating shaft 93, so that the rotation position of the rotating shaft 93 can be captured by the potentiometer, so that the position of the swing roller 96 can be obtained, and the speed of the copper foil unwinding motor 342 to drive the copper foil unwinding shaft 32 to rotate can be adjusted through the obtained position of the swing roller 96, so that the speed of the copper foil 203 unwinding can be adjusted, so that the speed closed-loop control of the unwinding copper foil 203 can be achieved.

[0052] In actual application, the copper foil 203 bypasses the bottom of the swing roller 96 and the bottom of the first tension detection roller 81. The first tension detection roller 81 can detect the tension of the copper foil 203. The swing rod driving member 97 adjusts the output force of the swing rod driving member 97 according to the tension of the copper foil 203 detected by the first tension detection roller 81, so as to adjust the tension of the copper foil 203. For example, when the first tension detection roller 81 detects that the tension is too large, the air pressure output by the electrical proportional valve on the swing rod driving member 97 is reduced by the PLC control, so that the output force of the swing rod driving member 97 becomes smaller, thereby driving the swing roller 96 to swing upward, thus adjusting the tension of the copper foil 203. When the first tension detection roller 81 detects that the tension is too small, the air pressure output by the electrical proportional valve on the swing rod driving member 97 is increased by the PLC control, so that the output force of the swing rod driving member 97 becomes larger, thereby driving the swing roller 96 to swing downward, thus adjusting the tension of the copper foil 203. The position of the swing roller 96 can be obtained by the potentiometer, so as to adjust the speed of the unwinding of the copper foil 203. For example, when the position of the swing roller 96 is lower, it indicates that the unwinding speed of the copper foil 203 is too fast, and the unwinding speed of the copper foil needs to be reduced. When the position of the swing roller 96 is higher, it indicates that the unwinding speed of the copper foil 203 is slow, and the unwinding speed of the copper foil unwinding shaft 32 needs to be increased. The swing rod mechanism 90 of the utility model can adjust the tension and unwinding speed of the copper foil 203 at the same time, and the adjustment of the tension of the copper foil 203 and the adjustment of the unwinding speed can respectively realize closed-loop control.

[0053] Combination Figures 13 to 15As shown, the deflection correction mechanism 100 is arranged between the first tension detection mechanism 80 and the calendering mechanism 40, and the deflection correction mechanism 100 is located above the second film unwinding mechanism 20, and the deflection correction mechanism 100 is used to correct the copper foil 203. The deflection correction mechanism 100 includes a deflection correction frame 101, a second deflection correction driving member 102, a deflection correction transverse plate 103, two deflection correction rollers 105 and two second deflection correction sensors 110. One end of the deflection correction frame 101 is arranged on one side of the deflection correction side plate 100a, and the deflection correction side plate 100 is arranged on the front side of the chassis 2 and above the second film side plate 21. The deflection correction transverse plate 103 is located above the deflection correction frame 101, and the second deflection correction driving member 102 is arranged in the deflection correction frame 101. The second deflection correction driving member 102 is a linear motor, and the top of the second deflection correction driving member 102 is provided with a driving plate 1021, and the driving plate 1021 is located below the deflection correction transverse plate 103 and connected to the deflection correction transverse plate 103. Two correcting vertical plates 104 are arranged opposite to each other at the top of the correcting horizontal plate 103, and two correcting rollers 105 are arranged side by side and located above the correcting horizontal plate 103. Two mounting holes corresponding to the correcting rollers 105 are respectively arranged on the adjacent sides of the two correcting vertical plates 104. The two ends of the correcting rollers 105 are rotatably arranged in the two mounting holes of the two correcting vertical plates 104 through a correcting bearing, and the correcting rollers 105 partially protrude from the tops of the two correcting vertical plates 104. The second correcting driving member 102 is used to drive the correcting horizontal plate 103 to move forward and backward, thereby driving the two correcting vertical plates 104 and the two correcting rollers 105 to move forward and backward. In actual application, the copper foil 203 passes over the two deflection correction rollers 105, and the two deflection correction rollers 105 move forward and backward, thereby driving the copper foil 203 to move forward and backward, so as to correct the position of the copper foil 203, thereby correcting the deflection of the copper foil 203, ensuring that the two side edges of the copper foil 203 are aligned with the two side edges of the first dry film 201 and the two side edges of the second dry film 202, further ensuring the quality of the dry electrode 204. It can be understood that the number of deflection correction rollers 105 can be set according to actual conditions.

[0054] The two second deflection correcting sensors 110 are arranged front and back oppositely. A screw drive module is provided on one side of the deflection correcting frame 101 close to the rolling mechanism 40, and the two second deflection correcting sensors 110 are connected to the screw drive module, and the screw drive module is used to drive the two second deflection correcting sensors 110 to move toward or away from each other, and the two second deflection correcting sensors 110 are used to detect the position of the copper foil 203.

[0055] Specifically, the screw drive module includes a screw 1111, a hand wheel 1113 and two nuts 1114. The two ends of the screw 1111 are rotatably arranged on the side of the correction frame 101 close to the calendering mechanism 40 through two screw bearing seats 1112, and one end of the screw 1111 is connected to the hand wheel 1113. The screw 1111 has two threaded sections with opposite rotation directions, and the two nuts 1114 are threadedly matched with the two threaded sections respectively. The two second correction sensors 110 are connected to the top ends of the two nuts 1114 respectively. The second deflection correcting sensor 110 is a horseshoe-shaped ultrasonic sensor. In actual application, the two second deflection correcting sensors 110 correspond to the two side edges of the copper foil 203 respectively. After the copper foil 203 passes over the two deflection correcting rollers 105, the two side edges of the copper foil 203 can pass through the inside of the two second deflection correcting sensors 110 respectively. By manually rotating the hand wheel 1113, the screw rod 1111 can be driven to rotate, thereby driving the two nuts 1114 to move toward or away from each other, and then driving the two second deflection correcting sensors 110 to move toward or away from each other, so that the distance between the two second deflection correcting sensors 110 can be adjusted, so as to adapt to copper foils 203 of different widths.

[0056] Two deflection correction rollers 107 are rotatably arranged on one side of the deflection correction frame 101 close to the calendering mechanism 40 and on the other side away from the calendering mechanism 40. The two ends of the deflection correction roller 107 are rotatably arranged on the corresponding side of the deflection correction frame 101 through two deflection correction roller bearing seats 1071. The two deflection correction rollers 107 are arranged opposite to each other on the left and right sides, wherein the deflection correction roller 107 on the left side is located below the two second deflection correction sensors 110. The two deflection correction rollers 107 are used to support the copper foil 203 respectively.

[0057] In actual application, the copper foil 203 is passed through the bottom of the right-hand correction roller 107, the top of the two correction rollers 105, and the bottom of the left-hand correction roller 107 in turn. During this process, the two side edges of the copper foil 203 pass through the inside of the two second correction sensors 110 respectively. The positions of the two side edges of the copper foil 203 can be detected by the two second correction sensors 110. In this way, the position of the copper foil 203 can be detected. When it is detected that the position of the copper foil 203 is offset forward and backward, such as when it is offset forward, At this time, the two deflection correcting rollers 105 are driven to move backwards by the second deflection correcting driving component 102, thereby driving the copper foil 203 that has passed over the two deflection correcting rollers 105 to move backwards, so that the position of the copper foil 203 can be corrected. When it is detected that the position of the copper foil 203 is offset forward or backward, such as offset backwards, the two deflection correcting rollers 105 are driven to move forwards by the second deflection correcting driving component 102, thereby driving the copper foil 203 that has passed over the two deflection correcting rollers 105 to move forwards, so that the position of the copper foil 203 can be corrected.

[0058] Combination Figures 16 to 18 As shown, the winding mechanism 50 is used to wind up the dry-process pole piece 204 and to correct the deviation of the dry-process pole piece 204. The winding mechanism 50 includes a winding side plate 51, a winding shaft 52, a winding cross plate 53, a magnetic powder clutch 542, a winding drive, a winding correction assembly 56, and a winding correction sensor 130. The winding side plate 51 is arranged on the front side of the chassis 2. The winding side plate 51 has a winding space 511. The winding shaft 52 is located in front of the winding side plate 51, and one end of the winding shaft 52 passes through the winding space 511 and extends into the chassis 2, and is connected to the output shaft of the magnetic powder clutch 542, and the input shaft of the magnetic powder clutch 542 is connected to the winding drive, and the winding drive is used to drive the winding shaft 52 to rotate through the magnetic powder clutch 542. The dry-process pole piece 204 can be wound up by rotating the winding shaft 52. The winding transverse plate 53 is located behind the winding side plate 51 and inside the chassis 2. One end of the winding transverse plate 53 is located inside the winding space 511. Two first winding support plates 55 are provided on both sides of the top of the winding transverse plate 33. The winding shaft 52 is located between the two first winding support plates 55. A second winding support plate 551 is provided on the top of the two first winding support plates 55. The magnetic powder clutch 542 is located behind the two first winding support plates 55. Two winding bearing seats 521 are provided on the outer periphery of the winding shaft 52. The two winding bearing seats 521 are respectively provided on the top of the winding transverse plate 53. The two winding bearing seats 521 provide support for the rotation of the winding shaft 52.

[0059] The winding drive member includes a winding motor 541 and a winding synchronous belt module. The magnetic powder clutch 542, the winding motor 541 and the winding synchronous belt module are all located in the chassis 2. The winding motor 541 is arranged at the top of the second winding support plate 551 through a motor seat. The winding synchronous belt module includes a winding driving wheel 543, a winding driven wheel 544 and a winding synchronous belt 545 sleeved on the outer periphery of the winding driving wheel 543 and the winding driven wheel 544. The winding driving wheel 543 is sleeved on the outer periphery of the end of the output shaft of the winding motor 541, and the winding driven wheel 544 is sleeved on the outer periphery of the input shaft of the magnetic powder clutch 542. The winding motor 541 is used to drive the winding driving wheel 543 to rotate, so that the winding shaft 52 can be driven to rotate through the winding driven wheel 544, the winding synchronous belt 545 and the magnetic powder clutch 5425.

[0060] The winding and correcting assembly 56 includes a winding and correcting driving member 561 and a winding connection block 562. The winding cross plate 53 is slidably arranged at the top of the third winding support plate 563, and the third winding support plate 563 is arranged through the winding space 511. The third winding support plate 563 is partially located in the chassis 2. A winding connection plate 512 is arranged at the rear side of the winding side plate 51, and two winding ribs 564 are respectively arranged on both sides of the bottom end of the third winding support plate 563, and the two winding ribs 564 are respectively arranged at the rear side of the winding connection plate 512, so that the third winding support plate 563 is connected to the rear side of the winding side plate 51 through the two winding ribs 564 and the winding connection plate 512. The winding and correcting driving member 561 is a servo electric cylinder. The winding and correcting driving member 561 is located below the third winding support plate 563 and is arranged at the rear side of the winding connecting plate 512. The winding and correcting driving member 561 is located between the two winding ribs 564. The third winding support plate 563 has a through hole 5631, and the length direction of the through hole 5631 is the same as the length direction of the third winding support plate 563. The bottom end of the winding horizontal plate 53 is provided with a mounting block 531, and the mounting block 531 is close to the other end of the winding horizontal plate 53. The winding connecting block 562 is "Z" shaped, and the structure of the winding connecting block 562 is the same as that of the correcting connecting block 352. One end of the winding connecting block 562 is connected to the end of the output shaft of the winding and correcting driving member 561, and the other end of the winding connecting block 562 passes through the through hole 5631 of the third winding support plate 563 and is connected to the bottom end of the mounting block 531. The winding and correcting driving member 561 is used to drive the winding connection block 562 to move forward and backward between the two ends of the through hole 5631 of the third winding support plate 563, so that the winding cross plate 53 can be driven to move forward and backward through the mounting block 531, and then the winding shaft 52, the magnetic powder clutch 542, the winding motor 541, the winding synchronous belt module, the first winding support plate 55 and the second winding support plate 551 can be driven to move forward and backward. The forward and backward movement of the winding shaft 52 can drive the winding dry-process pole piece 204 to move forward and backward, so that the position of the dry-process pole piece 204 can be corrected, so that the dry-process pole piece 204 can be corrected and the dry-process pole piece 204 can be wound neatly. The rotational torque of the winding shaft 52 can be controlled by the magnetic powder clutch 542, so that the tension of the winding of the dry-process pole piece 204 can be controlled. The third winding support plate 563 is provided to provide support for the winding transverse plate 53 to improve the stability of the movement of the winding transverse plate 53 .

[0061] The winding horizontal plate 53 is slidably arranged at the top of the third winding support plate 563. Specifically, two winding slide rails 5632 are arranged opposite to each other on the top of the third winding support plate 563. The length direction of the winding slide rails 5632 is the same as the length direction of the third winding support plate 563. The winding slide rails 5632 are slidably matched with winding sliders 5633. The winding sliders 5633 of the two winding slide rails 5632 are respectively arranged at the bottom of the third winding support plate 563. The number of winding sliders 5633 can be set according to actual conditions.

[0062] The winding correction sensor 130 is located above the winding shaft 52 and to the right of the winding shaft 52. The winding correction sensor 130 is arranged on the front side of the winding side plate 51. The winding correction sensor 130 is used to detect the position of the dry electrode 204. Specifically, the winding correction sensor 130 is a horseshoe-shaped ultrasonic sensor. A sensor connecting rod 1303 is provided through the mounting hole of the winding side plate 51, one end of the sensor connecting rod 1303 extends forward, and the other end of the sensor connecting rod 1303 is connected to one side of the winding horizontal plate 33 through an L-shaped member 1304. The winding deviation correction sensor 130 is connected to the sensor connecting rod 1303 through a sensor support member 1303. Specifically, a sensor mounting block 1301 is provided at the closed end of the winding deviation correction sensor 130, and the sensor mounting block 1301 is connected to the sensor support member 1303. The sensor support member 1303 has a hole, and the sensor support member 1303 is sleeved on the outer periphery of the sensor connecting rod 1303 through the hole. The forward and backward movement of the second winding support plate 551 can drive the L-shaped member 1304 to move forward and backward, and then drive the sensor connecting rod 1303, the sensor support member 1303, the sensor mounting block 1301 and the winding deviation correction sensor 130 to move forward and backward. In actual application, the winding and deflection correction sensor 130 corresponds to one side edge of the dry-process electrode 204. One side edge of the dry-process electrode 204 can pass through the inside of the winding and deflection correction sensor 130. The position of one side edge of the dry-process electrode 204 can be detected by the winding and deflection correction sensor 130. In this way, the position of the dry-process electrode 204 can be detected by the winding and deflection correction sensor 130. When it is detected that the position of the dry-process electrode 204 is offset forward or backward, such as offset forward, the winding and deflection correction drive 561 drives the winding shaft 52 to move backward, so that the position of the dry-process electrode 204 can be corrected. When it is detected that the dry-process electrode 204 is offset backward, the winding and deflection correction drive 561 drives the winding shaft 52 to move forward, so that the position of the dry-process electrode 204 can be detected.

[0063] A winding roller 58 is provided on the front side of the winding side plate 51, and the winding roller 58 is used to support the dry electrode 204. The winding roller 58 is located above the winding shaft 52 and to the left of the winding correction sensor 130. In this embodiment, a U-shaped winding roller frame 581 is provided on the front side of the winding side plate 51, and the two ends of the winding roller 209 are rotatably arranged on the inner walls of the two ends of the winding roller frame 2091.

[0064] The second tension detection mechanism 140 is arranged at the front side of the winding side plate 51. The second tension detection mechanism 140 is located between the calendering mechanism 40 and the winding correction sensor 130. The second tension detection mechanism 140 is used to detect the tension of the dry electrode 204. Specifically, the second tension detection mechanism 140 includes a second tension detection roller 1401. One end of the first tension detection roller 81 is rotatably arranged at the front side of the winding side plate 51 through the third tension bearing seat, and the other end of the second tension detection roller 1401 is rotatably arranged at one end of the second detection beam 1402 through the fourth tension bearing seat 1403. The other end of the second detection beam 1402 is arranged at the front side of the winding side plate 51. The second detection beam 1402 is located below the second tension detection roller 1401. The second tension detection roller 1401 is used to detect the tension of the dry-process pole piece 204 , so as to control the rotational torque of the winding shaft 52 according to the detection result of the second tension detection roller 1401 through the magnetic powder clutch 542 , thereby realizing the control of the winding tension of the dry-process pole piece 204 .

[0065] In actual application, the first reel 2011 wound with the first dry film 201 is first installed on the first film winding shaft 12, the second reel 2021 wound with the second dry film 202 is installed on the second film winding shaft 22, and the third reel wound with the copper foil 203 is installed on the copper foil unwinding shaft 32, and then the first film unwinding shaft 12 is driven to rotate by the first film unwinding driving member, the second film unwinding shaft 22 is driven to rotate by the second film unwinding driving member, and the copper foil unwinding driving member is driven to rotate by the copper foil unwinding driving member. The unwinding shaft 32 rotates, so that the first dry film 201 can be unwound through the first film unwinding shaft 12, the second dry film 202 can be unwound through the second film unwinding shaft 22, and the copper foil 203 can be unwound through the copper foil unwinding shaft 32. The unwound first dry film 201 bypasses the right side of the first supporting roller 491 and then enters the calendering gap between the lower calendering roller 42 and the upper calendering roller 43. The unwound second dry film 202 bypasses the right side of the third supporting roller 493 and then enters. The unrolled copper foil 203 is sequentially passed over the copper foil roller 36, passed under the swing roller 96, passed under the first tension detection roller 81, passed under the front deviation correction roller 107, passed over the two deviation correction rollers 105, passed under the rear deviation correction roller 107, passed over the second support roller 492, and then enters the calendering gap. At this time, the copper foil 203 is located between the first dry film 201 and the second dry film 202. The copper foil 203 is driven by the lower calendering roller. The upper calendering roller driving member drives the lower calendering roller 42 and the upper calendering roller 43 to rotate in opposite directions respectively, and drives the lower calendering roller 42 to move upward through two lifting driving members 48 to provide calendering pressure, so that the first dry film 201, the second dry film 202, and the copper foil 203 can be calendered by the lower calendering roller 42 and the upper calendering roller 43, so that the first dry film 201 and the second dry film 202 can be respectively compounded on both sides of the copper foil 203, thereby forming a dry electrode 204. After that, the dry electrode 204 bypasses from the top of the second tension detection roller 1401, bypasses to the left of the winding roller 58, and then is wound on the winding shaft 52.During the movement of the copper foil 203, one side edge of the copper foil 203 can pass through the inside of the first deflection correction sensor 70 and the two side edges of the copper foil 203 can pass through the inside of the two second deflection correction sensors 70 respectively. The position of the copper foil 203 can be detected by the first deflection correction sensor 70. When the position of the copper foil 203 deviates forward and backward, the copper foil unwinding shaft 22 is driven forward and backward by the first deflection correction driving member 351, thereby driving the copper foil 203 to move forward and backward. In this way, the position of the copper foil 203 is corrected. The position of the copper foil 203 can be corrected by the two second deflection correction sensors 110. When the position of the copper foil 203 deviates forward or backward, the second correcting driving member 102 drives the two correcting rollers 105 to move forward or backward, thereby driving the copper foil 203 to move forward or backward, so that the position of the copper foil 203 can be further corrected. The tension of the copper foil 203 can be detected by the first tension detection roller 81, and the swing roller 96 can be driven up and down by the swing rod driving member 97 according to the detection result of the first detection roller 81, so as to adjust the tension of the copper foil 203, and the position of the swing roller 96 obtained by the potentiometer can be used to adjust the speed of unwinding the copper foil 203. During the movement of the dry-process electrode sheet 204, one side edge of the dry-process electrode sheet 204 can pass through the inside of the winding and deflection correction sensor 130. When the position of the dry-process electrode sheet 204 is offset forward and backward, the winding and deflection correction drive member 561 drives the winding shaft 52 to move forward and backward, thereby driving the dry-process electrode sheet 204 to move forward and backward. In this way, the position of the dry-process electrode sheet 204 can be corrected. The tension of the dry-process electrode sheet 204 can be detected by the second tension detection roller 1401. In this way, the rotational torque of the winding shaft 52 can be controlled according to the detection result of the second tension detection roller 1401 through the magnetic powder clutch, thereby realizing the control of the winding tension of the dry-process electrode sheet 204.

[0066] The utility model is provided with a copper foil unwinding transverse plate 33 and a copper foil deflection correction component 35, wherein the copper foil deflection correction component 35 includes a first deflection correction driving component 351 and a deflection correction connecting block 352. When the copper foil 203 is unwound by the copper foil unwinding shaft 32, when the position of the copper foil 203 is offset forward and backward, the first deflection correction driving component 351 drives the deflection correction connecting block 352 to move forward and backward, thereby driving the copper foil unwinding transverse plate 33 to move forward and backward, further driving the copper foil unwinding shaft 52 and the copper foil unwinding driving component to move forward and backward, further driving the copper foil 203 to move forward and backward, thereby correcting the position of the copper foil 203, thereby realizing automatic deflection correction of the copper foil 203, ensuring that the two side edges of the copper foil 203 are aligned with the two side edges of the first dry-process diaphragm 201 and the two side edges of the second dry-process diaphragm 202, thereby ensuring the quality of the dry-process electrode 204. In addition, the first film unwinding mechanism 10 is arranged at the top of the calendering mechanism 40, and the second film unwinding mechanism 20 is close to the calendering mechanism 40, which can reduce the distance traveled by the first dry film 201 and the second dry film 202, and avoid the first dry film 201 and the second dry film 202 from breaking. The deviation correction mechanism 100 can further correct the copper foil 203 before the calendering mechanism 40 composites the first dry film 201 and the second dry film 202 on both sides of the copper foil 203, further ensuring the quality of the dry electrode 204. The winding correction component 56 provided in the winding mechanism 50 can realize automatic deviation correction of the dry electrode 204 to ensure neat winding.

[0067] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dry film composite device, comprising a first film unwinding mechanism, a second film unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism and a winding mechanism, wherein the winding mechanism, the calendering mechanism, the second film unwinding mechanism and the copper foil unwinding mechanism are arranged in sequence from left to right, the copper foil unwinding mechanism comprises a copper foil unwinding side plate, a copper foil unwinding shaft and a copper foil unwinding driving member, the copper foil unwinding side plate has an unwinding space, the copper foil unwinding shaft is located in front of the copper foil unwinding side plate, and one end of the copper foil unwinding shaft passes through the unwinding space and is connected to the copper foil unwinding driving member, the copper foil unwinding driving member is used to drive the copper foil unwinding shaft to rotate, characterized in that The copper foil unwinding mechanism also includes a copper foil unwinding transverse plate and a copper foil correction component. The copper foil unwinding transverse plate is located behind the copper foil unwinding side plate and one end of the copper foil unwinding transverse plate is located in the unwinding space. The copper foil unwinding shaft is rotatably arranged at the top of the copper foil unwinding transverse plate, and the copper foil unwinding driving member is arranged at the other end of the copper foil unwinding transverse plate. The copper foil correction component includes a first correction driving member and a correction connecting block. One end of the correction connecting block is connected to the end of the output shaft of the first correction driving member, and the other end of the correction connecting block is connected to the bottom end of the copper foil unwinding transverse plate. The first correction driving member is used to drive the correction connecting block to move forward and backward, thereby driving the copper foil unwinding transverse plate to move forward and backward, and then driving the copper foil unwinding shaft and the copper foil unwinding driving member to move forward and backward.

2. The dry film composite device according to claim 1, characterized in that: The copper foil unwinding cross plate is slidably arranged on the top end of the unwinding support plate, an unwinding connecting plate is arranged on the rear side of the copper foil unwinding side plate, the unwinding support plate passes through the unwinding space and is connected to the unwinding connecting plate, the first deviation correction driving component is located below the unwinding support plate and is arranged on the rear side of the unwinding connecting plate, the other end of the deviation correction connecting block passes through the through hole of the unwinding support plate and is connected to the bottom end of the copper foil unwinding cross plate.

3. The dry film composite device according to claim 1, characterized in that: The copper foil unwinding mechanism also includes a first deflection correction sensor for detecting the position of the copper foil. The first deflection correction sensor is arranged on the front side of the copper foil unwinding side plate. The first deflection correction sensor is located above the copper foil unwinding shaft and to the left of the copper foil unwinding shaft.

4. The dry film composite device according to claim 1, characterized in that: It also includes a correcting mechanism arranged between the calendering mechanism and the copper foil unwinding mechanism, the correcting mechanism is located above the second film unwinding mechanism, the correcting mechanism includes a correcting frame, a second correcting drive member, a correcting transverse plate and at least two correcting rollers, one end of the correcting frame is arranged on one side of the correcting side plate, the second correcting drive member is arranged in the correcting frame, the correcting transverse plate is located above the correcting frame and connected to the second correcting drive member, the two correcting rollers are arranged side by side left and right and are located above the correcting transverse plate, the top of the correcting transverse plate is provided with two correcting vertical plates arranged front and back oppositely, the correcting roller is located between the two correcting vertical plates, the two ends of the correcting roller are respectively rotatably arranged on the side close to the two correcting vertical plates, and the correcting roller part protrudes from the top of the two correcting vertical plates.

5. The dry film composite device according to claim 4, characterized in that: The deflection correction mechanism also includes two second deflection correction sensors arranged opposite to each other in front and back. A screw drive module is provided on the side of the deflection correction frame close to the calendering mechanism. The two second deflection correction sensors are connected to the screw drive module. The screw drive module is used to drive the two second deflection correction sensors to move toward or away from each other. The two second deflection correction sensors are used to detect the position of the copper foil.

6. The dry film composite device according to claim 4, characterized in that: It also includes a first tension detection mechanism and a swing rod mechanism which are sequentially arranged between the deviation correction mechanism and the copper foil unwinding mechanism.

7. The dry film composite device according to claim 1, characterized in that: The calendering mechanism includes two calendering mounting frames arranged front and back relative to each other, a lower calendering roller, an upper calendering roller, a lower calendering roller driving member, an upper calendering roller driving member and two lifting driving members. The calendering mounting frame has an installation space. The two ends of the lower calendering roller are rotatably arranged on the two lower calendering bearing seats. The two lower calendering bearing seats are slidably arranged in the installation spaces of the two calendering mounting frames. The upper calendering roller and the lower calendering roller are arranged opposite to each other in the upper and lower directions with a calendering gap therebetween. The two ends of the upper calendering roller are rotatably arranged on the two upper calendering bearing seats. The upper calendering bearing seats are respectively fixedly arranged in the installation spaces of the two calendering mounting frames and are respectively located above the two lower calendering bearing seats. The lower calendering roller driving component is used to drive the lower calendering roller to rotate, and the upper calendering roller driving component is used to drive the upper calendering roller to rotate. The rotation directions of the upper calendering roller and the lower calendering roller are opposite. The two jacking driving components are respectively arranged on the bottom of the installation spaces of the two calendering mounting frames. The two lower calendering bearing seats are respectively located above the two jacking driving components and are respectively connected to the ends of the output shafts of the two jacking driving components.

8. The dry film composite device according to claim 1, characterized in that: The winding mechanism includes a winding side plate, a winding shaft, a winding transverse plate, a magnetic powder clutch, a winding drive and a winding correction assembly, the winding side plate has a winding space, the winding shaft is located in front of the winding side plate, and one end of the winding shaft passes through the winding space and is connected to the magnetic powder clutch, the magnetic powder clutch is connected to the winding drive, and the winding drive is used to drive the winding shaft to rotate through the magnetic powder clutch, the winding transverse plate is located behind the winding side plate, and one end of the winding transverse plate is located In the winding position, the winding shaft is rotatably arranged at the top end of the winding horizontal plate, and the winding correction assembly includes a winding correction drive and a winding connection block, one end of the winding connection block is connected to the end of the output shaft of the winding correction drive, and the other end of the winding connection block is connected to the bottom end of the winding horizontal plate, and the winding correction drive is used to drive the winding connection block to move forward and backward, thereby driving the winding horizontal plate to move forward and backward, and further driving the winding shaft, magnetic powder clutch, and winding drive to move forward and backward.

9. The dry film composite device according to claim 8, characterized in that: The winding mechanism also includes a winding correction sensor for detecting the position of the dry-process electrode. The winding correction sensor is located in front of the winding side plate. The winding correction sensor is located above the winding shaft and to the right of the winding shaft. A sensor connecting rod is provided through the winding side plate. One end of the sensor connecting rod extends forward, and the other end of the sensor connecting rod is connected to the winding cross plate. The winding correction sensor is connected to the sensor connecting rod through a sensor support.

10. The dry film composite device according to claim 1, characterized in that: The first film unwinding mechanism comprises a first film side plate, a first film unwinding shaft and a first film unwinding driving member, wherein the first film side plate is arranged at the top end of the calendering mechanism, the first film unwinding shaft is located in front of the first film side plate, and one end of the first film unwinding shaft passes through the through hole of the first film side plate and is connected to the first film unwinding driving member, and the first film unwinding driving member is used to drive the first film unwinding shaft to rotate; The second diaphragm unwinding mechanism includes a second diaphragm side plate, a second diaphragm unwinding shaft and a second diaphragm unwinding driving component. The second diaphragm unwinding shaft is located in front of the second diaphragm side plate, and one end of the second diaphragm unwinding shaft passes through the through hole of the second diaphragm side plate and is connected to the second diaphragm unwinding driving component. The second diaphragm unwinding driving component is used to drive the second diaphragm unwinding shaft to rotate.

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