Dry-method membrane thinning compound equipment

Abstract

The utility model discloses dry-method diaphragm thinning compound equipment which comprises a thinning device and further comprises a compound device, and the compound device comprises a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism and a pole piece winding mechanism. The first diaphragm unreeling mechanism and the second diaphragm unreeling mechanism are respectively used for unreeling two finished diaphragms, the copper foil unreeling mechanism is used for unreeling a copper foil, and the calendering mechanism is used for calendering the two unreeled finished diaphragms and the copper foil so as to respectively compound the two finished diaphragms on two surfaces of the copper foil. And the pole piece winding mechanism is used for winding the dry-method pole piece. According to the utility model, the thinning and trimming of the dry-method membrane and the double-sided compounding of the thinned and trimmed dry-method membrane and the copper foil can be completed on the same equipment, so that the use requirements are greatly met.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, and particularly to a dry film thinning and laminating device. Background Art

[0002] At present, a calendering device is generally used to calender electrode powder (the electrode powder is composed of an electrode active material, a binder, and a conductive agent) to obtain a dry film. The dry film obtained by this method generally has a relatively thick thickness. Therefore, it is usually necessary to thin it and trim its two side edges, that is, trimming treatment, to obtain a finished film with the required thickness and width. At present, a thinning device is generally used to thin and trim the dry film, but this device only has the functions of thinning and trimming, and does not have the function of double-sided laminating the thinned and trimmed dry film and copper foil to form a dry electrode. Therefore, the thinning and trimming of the dry film and the double-sided lamination of the thinned and trimmed dry film and copper foil need to be completed on different devices, which cannot meet the use requirements. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a dry film thinning and laminating device, which can complete the thinning and trimming of the dry film and the double-sided lamination of the thinned and trimmed dry film and copper foil on the same device, greatly meeting the use requirements.

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

[0005] A dry film thinning and laminating device includes a thinning device and a laminating device. The laminating device includes a first film unwinding mechanism, a second film unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism, and an electrode winding mechanism. The first film unwinding mechanism and the second film unwinding mechanism are respectively used to unwind two finished films. The copper foil unwinding mechanism is used to unwind copper foil. The calendering mechanism is used to calender the two unwound finished films and copper foil to laminate the two finished films on both sides of the copper foil respectively, thereby forming a dry electrode. The electrode winding mechanism is used to wind the dry electrode. The first film unwinding mechanism and the second film unwinding mechanism are sequentially arranged above and in front of the calendering mechanism along the walking paths of the two finished films respectively. The copper foil unwinding mechanism is arranged in front of the calendering mechanism along the walking path of the copper foil. Both the copper foil unwinding mechanism and the second film unwinding mechanism are located below the thinning device. The electrode winding mechanism is arranged behind the calendering mechanism along the walking path of the dry electrode.

[0006] The beneficial effects of the present utility model are as follows: Through the provided composite device, which includes a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a copper foil unwinding mechanism, a rolling mechanism, and a pole piece winding mechanism, the two finished diaphragms thinned and trimmed by the thinning device can be respectively compounded on both sides of the copper foil through these mechanisms, thereby forming a dry process pole piece. Compared with the prior art, in addition to the functions of thinning and trimming, the equipment of the present utility model also has the function of double-sided compounding of the thinned and trimmed dry process diaphragm and the copper foil. In this way, the thinning and trimming of the dry process diaphragm and the double-sided compounding of the thinned and trimmed dry process diaphragm and the copper foil can be completed on the same device, without the need for different devices, greatly meeting the usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0008] Figure 1 FIG. is a schematic structural diagram of a dry process diaphragm thinning and compounding device provided by an embodiment of the present utility model;

[0009] Figure 2 FIG. Figure 1 is a schematic structural diagram of the dry process diaphragm thinning and compounding device shown after removing the bottom plate, chassis, and support frame;

[0010] Figure 3 FIG. Figure 1 is a sectional schematic diagram of the dry process diaphragm thinning and compounding device shown after removing the bottom plate, chassis, and support frame;

[0011] Figure 4 FIG. Figure 1 is a schematic structural diagram of the thinning unwinding mechanism and the primary thinning mechanism of the thinning device of the dry process diaphragm thinning and compounding device shown at a first angle;

[0012] Figure 5 FIG. Figure 4 is a schematic structural diagram of the thinning unwinding mechanism and the primary thinning mechanism shown at a second angle;

[0013] Figure 6 FIG. Figure 4 is a sectional schematic diagram of the thinning unwinding mechanism and the primary thinning mechanism shown;

[0014] Figure 7 FIG. Figure 1 is a schematic structural diagram of the secondary thinning mechanism of the thinning device of the dry process diaphragm thinning and compounding device shown;

[0015] Figure 8 FIG. Figure 7 is a sectional schematic diagram of the secondary thinning mechanism shown;

[0016] Figure 9 is Figure 1 The structural schematic diagrams of the first thinning mechanism, the second thinning mechanism and the trimming mechanism of the thinning device of the dry film thinning composite device shown, and the steel roller and the cutter assembly of the trimming mechanism;

[0017] Figure 10 is Figure 9 The structural schematic diagram of the steel roller and the cutter assembly of the trimming mechanism shown;

[0018] Figure 11 is Figure 9 The structural schematic diagram of the cutter assembly of the trimming mechanism shown;

[0019] Figure 12 is Figure 9 The structural schematic diagram of the cutter assembly of the trimming mechanism shown after removing the waste box;

[0020] Figure 13 is Figure 9 The structural schematic diagram of the first angle of the connecting frame, the rubber roller, the steel roller, the rubber roller drive assembly of the trimming mechanism and the thinning winding mechanism shown;

[0021] Figure 14 is Figure 13 The structural schematic diagram of the second angle of the connecting frame, the rubber roller, the steel roller, the rubber roller drive assembly of the trimming mechanism and the thinning winding mechanism shown;

[0022] Figure 15 is Figure 13 The structural schematic diagram of the thinning winding mechanism shown;

[0023] Figure 16 is Figure 1 The structural schematic diagram of the first angle of the first film unwinding mechanism, the calendering mechanism and the first film deviation correction sensor of the composite device of the dry film thinning composite device shown;

[0024] Figure 17 is Figure 16 The structural schematic diagram of the second angle of the first film unwinding mechanism, the calendering mechanism and the first film deviation correction sensor shown;

[0025] Figure 18 is Figure 16 The left view schematic diagram of the second angle of the first film unwinding mechanism, the calendering mechanism and the first film deviation correction sensor shown;

[0026] Figure 19 is Figure 16 The sectional view schematic diagram of the first film unwinding mechanism, the calendering mechanism and the first film deviation correction sensor shown;

[0027] Figure 20 isFigure 1 Schematic diagram of the structure of the second diaphragm unwinding mechanism and the second diaphragm deviation rectifying sensor of the laminating device of the dry film thinning laminating equipment shown at a first angle;

[0028] Figure 21 is Figure 20 Schematic diagram of the structure of the second diaphragm unwinding mechanism and the second diaphragm deviation rectifying sensor shown at a second angle;

[0029] Figure 22 is Figure 1 Schematic diagram of the structure of the first vertical plate, copper foil unwinding mechanism, copper foil deviation rectifying sensor and the first deviation rectifying mechanism of the laminating device of the dry film thinning laminating equipment shown at a first angle;

[0030] Figure 23 is Figure 22 Schematic diagram of the structure of the first vertical plate, copper foil unwinding mechanism, copper foil deviation rectifying sensor and the first deviation rectifying mechanism shown at a second angle;

[0031] Figure 24 is Figure 1 Schematic diagram of the structure of the second vertical plate, swing rod mechanism and tension detection mechanism of the laminating device of the dry film thinning laminating equipment;

[0032] Figure 25 is Figure 24 Schematic diagram of the structure of the swing rod mechanism shown;

[0033] Figure 26 is Figure 1 Schematic diagram of the structure of the second deviation rectifying mechanism and the second copper foil deviation rectifying sensor of the laminating device of the dry film thinning laminating equipment shown at a first angle;

[0034] Figure 27 is Figure 26 Schematic diagram of the structure of the second deviation rectifying mechanism and the second copper foil deviation rectifying sensor shown at a second angle;

[0035] Figure 28 is Figure 1 Schematic diagram of the structure of the third vertical plate, pole piece winding mechanism, winding deviation rectifying sensor and the winding deviation rectifying mechanism of the laminating device of the dry film thinning laminating equipment shown at a first angle;

[0036] Figure 29 is Figure 28 Schematic diagram of the structure of the third vertical plate, pole piece winding mechanism, winding deviation rectifying sensor and the winding deviation rectifying mechanism shown at a second angle. Detailed implementation manners

[0037] The concept, specific structure and technical effects of the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative work all fall within the scope of protection of the present utility model. In addition, all the connection / linkage relationships involved in the patent do not simply refer to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the creation of the present utility model can be interactively combined on the premise of not conflicting with each other.

[0038] Please refer to Figures 1 to 3 , a dry film thinning and laminating device provided by an embodiment of the present utility model includes a bottom plate 1, a chassis 2, a support frame 3, a thinning device 4 and a laminating device 5. The chassis 2 and the support frame 3 are both arranged at the top of the bottom plate 1. The support frame 3 is located in front of the chassis 2. The thinning device 4 is arranged on the left side of the chassis 2 and the top of the support frame 3. The thinning device 4 is used to thin and trim the dry film 401 to obtain a finished film 402 with the required thickness and width. The laminating device 5 is arranged at the top of the bottom plate 1 and the left side of the chassis 2. The laminating device 5 is used to double-side laminate two finished films 402 and a copper foil 403 to obtain a dry electrode 404.

[0039] Specifically, the thinning device 4 includes a thinning unwinding mechanism 10, a plurality of thinning mechanisms, a trimming mechanism 40 and a thinning winding mechanism 50. The thinning unwinding mechanism 10, the plurality of thinning mechanisms and the thinning winding mechanism 50 are arranged in sequence from front to back along the walking path of the dry film 401. The thinning unwinding mechanism 10 is used to unwind the dry film 401. The plurality of thinning mechanisms are used to sequentially thin the unwound dry film 401, so that a dry film 401 with the required thickness can be obtained. The trimming mechanism 40 is used to trim the two side edges of the dry film 401 after the last thinning treatment, that is, trimming treatment, so that a dry film 401 with the required width can be obtained. The thinning winding mechanism 50 is used to wind the trimmed dry film 401 to obtain a finished film 402.

[0040] In this embodiment, there are two thinning mechanisms, which are a primary thinning mechanism 20 and a secondary thinning mechanism 30 respectively. The primary thinning mechanism 20 and the secondary thinning mechanism 30 are respectively used to perform the first thinning treatment and the second thinning treatment on the unwound dry film 401. It can be understood that in other embodiments, the number of thinning mechanisms can also be other, such as three, four, etc., which can be set according to the actual situation.

[0041] Combined withFigures 4 to 6 As shown in the figure, the thinning unwinding mechanism 10 includes a thinning unwinding mounting frame 11, a thinning unwinding shaft 12, a magnetic powder clutch 13, a thinning unwinding synchronous belt assembly, and a thinning unwinding driving member (not shown in the figure). The thinning unwinding shaft 12 is located to the left of the thinning unwinding mounting frame 11, and the magnetic powder clutch 13 is located to the right of the thinning unwinding mounting frame 11. One end of the thinning unwinding shaft 12 passes through the mounting hole on one side of the thinning unwinding mounting frame 11 and is connected to the output shaft of the magnetic powder clutch 13. The magnetic powder clutch 13 is arranged on the other side of the thinning unwinding mounting frame 11 through a mounting bracket 131, and the mounting bracket 131 is arranged around the outer circumference of the thinning unwinding shaft 12. The thinning unwinding driving member is connected to the input shaft of the magnetic powder clutch 13 through the thinning unwinding synchronous belt assembly. The thinning unwinding driving member is used to drive the thinning unwinding shaft 12 to rotate relative to the thinning unwinding mounting frame 11 through the thinning unwinding synchronous belt assembly and the magnetic powder clutch 13. In actual application, first, the unwinding reel 301 wound with the dry film 401 is sleeved on the outer circumference of the thinning unwinding shaft 12, and then the thinning unwinding driving member is used to drive the thinning unwinding shaft 12 to rotate, so that the dry film 401 can be unwound through the thinning unwinding shaft 12. The provided magnetic powder clutch 13 can control the rotational torque of the thinning unwinding shaft 12, so that the tension of the dry film 401 during unwinding can be controlled. The tension control accuracy is high, and a stable tension of about 1 N (Newton) can be provided.

[0042] A release bearing is arranged in the mounting hole of the thinning unwinding mounting frame 11. The release bearing is sleeved on the outer circumference of the thinning unwinding shaft 12 to provide support for the rotation of the thinning unwinding shaft 12.

[0043] The thinning unwinding driving member is a motor. The thinning unwinding synchronous belt assembly includes a thinning unwinding driving pulley, a thinning unwinding driven pulley, and a thinning unwinding synchronous belt sleeved on the outer circumferences of the thinning unwinding driving pulley and the thinning unwinding driven pulley. The thinning unwinding driving pulley is sleeved on the outer circumference of the end of the output shaft of the thinning unwinding driving member, and the driven pulley is sleeved on the outer circumference of the input shaft of the magnetic powder clutch 13. The thinning unwinding driving member is used to drive the thinning unwinding driving pulley to rotate, so that the input shaft of the magnetic powder clutch 13 can be driven to rotate through the thinning unwinding driven pulley and the thinning unwinding synchronous belt, and then the thinning unwinding shaft 12 can be driven to rotate through the output shaft of the magnetic powder clutch 13.

[0044] The first-stage thinning mechanism 20 includes two thinning mounting frames 21 arranged opposite to each other left and right, a lower roller 22, an upper roller 23, a lower roller driving member, an upper roller driving member, and two pressing driving members 28 arranged opposite to each other left and right.

[0045] The thinning mounting bracket 21 is a U-shaped structure, and the bottom ends of the two thinning mounting brackets 21 are respectively arranged on the left side and the right side of the top end of the substrate 211. The substrate 211 is arranged on the top end of the support frame 3. The openings of the two thinning mounting brackets 21 both face the substrate 211. In this embodiment, the thinning mounting bracket 21 is composed of two columns arranged opposite to each other front and back and a cross plate arranged at the top ends of the two columns. The two ends of the cross plate respectively protrude from the sides of the two columns away from each other. The interior of the thinning mounting bracket 21 is enclosed between the two columns and the cross plate. The opening of the thinning mounting bracket 21 is formed between the bottom ends of the two columns. The bottom ends of the two columns are respectively arranged on the corresponding sides of the top end of the substrate 211. Among them, for the thinning mounting bracket 21 on the right side, a mounting support seat 111 is provided at one end close to the thinning unwinding mechanism 10. The thinning unwinding mounting bracket 11 is arranged on the side of the mounting support seat 111 away from the corresponding thinning mounting bracket 21. The thinning unwinding mounting bracket 11 and the mounting support seat 111 form an L-shaped structure.

[0046] The lower roller 22 and the upper roller 23 are both located between the two thinning mounting brackets 21. The thinning unwinding shaft 12 corresponds to the lower roller 22. The upper roller 23 and the lower roller 22 are arranged opposite to each other up and down, and there is a gap between the roller surfaces of the upper roller 23 and the lower roller 22. In actual application, the rotation directions of the upper roller 23 and the lower roller 22 are opposite. The two ends of the lower roller 22 are respectively rotatably arranged inside the two thinning mounting brackets 21 through two lower bearing seats 221. The two lower bearing seats 221 are respectively arranged on the left side and the right side of the top end of the substrate 211. The two ends of the upper roller 23 are respectively rotatably arranged inside the two thinning mounting brackets 21 through two upper bearing seats 231. The two upper bearing seats 231 are respectively located above the two lower bearing seats 221.

[0047] The lower roller driving member is arranged on the outer side of the lower bearing seat 221 on the right side (the outer side is the side where the two lower bearing seats 221 are away from each other). One end of the lower roller 22 protrudes from the outer side of the thinning mounting bracket 21 on the right side and is connected to the lower roller driving member. The lower roller driving member is used to drive the lower roller 22 to rotate. In this embodiment, the lower roller driving member includes a lower driving motor 241 and a lower speed reducer 242. The lower driving motor 241 is arranged on the lower speed reducer 242. The lower speed reducer 242 is arranged on the outer side of the lower bearing seat 221 on the right side through a lower speed reducer seat 2421. The output shaft of the lower driving motor 241 is connected to the input shaft of the lower speed reducer 242. The input shaft of the lower speed reducer 242 is connected to one end of the lower roller 22. The lower driving motor 241 is used to drive the lower roller 22 to rotate through the lower speed reducer 242.

[0048] The upper roll driving member is disposed outside the right upper bearing block 231 (the outside means the side where the two upper bearing blocks 231 are away from each other). One end of the upper roll 23 protrudes outside the right thinning mounting frame 21 and is connected to the upper roll driving member, and the upper roll driving member is used to drive the upper roll 23 to rotate. In this embodiment, the upper roll driving member includes an upper driving motor 251 and an upper speed reducer 252. The upper driving motor 251 is disposed on the upper speed reducer 252, and the upper speed reducer 252 is disposed outside the right upper bearing block 231 through an upper speed reducer seat 2521. The output shaft of the upper driving motor 251 is connected to the input shaft of the upper speed reducer 252, and the input shaft of the upper speed reducer 252 is connected to one end of the upper roll 23. The upper driving motor 251 is used to drive the upper roll 23 to rotate through the upper speed reducer 252.

[0049] In practical applications, the lower roll 22 is driven to rotate by the lower roll driving member and the upper roll 23 is driven to rotate in the opposite direction by the upper roll driving member, so that the dry film 401 located in the gap can be roll-pressed by the lower roll 22 and the upper roll 23, and thus the first thinning treatment of the dry film 401 can be realized.

[0050] The other end of the lower roll 22 protrudes outside the left thinning mounting frame 21 and is connected to a lower rotary joint 26. A lower oil passage is provided inside the lower roll 22, and the lower oil passage is communicated with the lower rotary joint 26. The rotation of the lower roll 22 can drive the lower rotary joint 26 to rotate. The other end of the upper roll 23 protrudes outside the left thinning mounting frame 21 and is connected to an upper rotary joint 27. An upper oil passage is provided inside the upper roll 23, and the upper oil passage is communicated with the upper rotary joint 27. The rotation of the upper roll 23 can drive the upper rotary joint 27 to rotate. In practical applications, hot oil or cooling oil can be introduced into the lower oil passage through the lower rotary joint 26 to keep the temperature of the roll surface of the lower roll 22 constant, and hot oil or cooling oil can be introduced into the upper oil passage through the upper rotary joint 27 to keep the temperature of the roll surface of the upper roll 23 constant, ensuring the quality of the dry film 401 after the first thinning treatment.

[0051] In this embodiment, the upper bearing seat 231 is slidably arranged in the corresponding thinning mounting frame 21 through a slide rail assembly. The upper bearing seat 231 can move up and down relative to the corresponding thinning mounting frame 21. The slide rail assembly includes two bearing seat slide rails arranged on the front inner wall and the rear inner wall of the corresponding thinning mounting frame 21. The length direction of the bearing seat slide rail is the same as the height direction of the thinning mounting frame 21. The bearing seat slide rail is slidably fitted with a bearing seat slider, and the bearing seat slider can slide up and down along the bearing seat slide rail. The bearing seat sliders of the two bearing seat slide rails are respectively arranged on both sides of the corresponding upper bearing seat 231. The number of bearing seat sliders slidably fitted with each bearing seat slide rail can be set according to actual conditions. A pressure application mounting member 2311 is provided at the top of the upper bearing seat 231. The pressure application driving member 28 is preferably a pneumatic-hydraulic intensifying cylinder. The two pressure application driving members 28 are respectively arranged at the tops of the two thinning mounting frames 21. A through hole communicating with the inside of the thinning mounting frame 21 is provided at the top of the thinning mounting frame 21. The ends of the output shafts of the two pressure application driving members 28 respectively pass through the through holes of the two thinning mounting frames 21 and are respectively located inside the two thinning mounting frames 21. The ends of the output shafts of the two pressure application driving members 28 are respectively connected with two pressure application blocks 281. The two pressure application blocks 281 are respectively located above the pressure application mounting members 2311 of the two upper bearing seats 231, and the two pressure application blocks 281 are respectively connected with the pressure application mounting members 2311 of the two upper bearing seats 231 through two thinning pressure sensors (not shown in the figure). The two pressure application driving members 28 are respectively used to drive the two pressure application blocks 281 to move up and down, so that the pressure application mounting members 2311 of the two upper bearing seats 231 can be driven to move up and down through the two thinning pressure sensors, and then the two upper bearing seats 231 can be driven to move up and down. The up and down movement of the two upper bearing seats 231 can drive the upper driving motor 251, the upper reduction gear 252, the upper reduction gear seat 2521, the upper rolling roll 23, and the upper rotary joint 27 to move up and down. Through the downward movement of the upper rolling roll 23, downward pressure can be applied through the upper rolling roll 23 to provide the pressure for roll pressing. The pressure of the downward pressure applied through the upper rolling roll 23 can be detected through the thinning pressure sensor. In actual application, downward pressure is applied through the upper rolling roll 23, and the upper rolling roll 23 and the lower rolling roll 22 rotate in opposite directions, so that the dry film sheet 401 located in the gap can be roll-pressed, and thus the first thinning treatment of the dry film sheet 401 can be realized.

[0052] Combined with Figure 7 and Figure 8As shown, the structure of the secondary thinning mechanism 30 is the same as that of the primary thinning mechanism 20. The secondary thinning mechanism 30 also includes two thinning mounting frames 21 arranged oppositely left and right, a lower roller 22, an upper roller 23, a lower roller driving member, an upper roller driving member, two pressing driving members 29 arranged oppositely left and right, and a guide plate 29. The parts of the secondary thinning mechanism 30 that are the same as those of the primary thinning mechanism 20 will not be described here again. The differences between the secondary thinning mechanism 30 and the primary thinning mechanism 20 are as follows: Each thinning mounting frame 21 of the secondary thinning mechanism 30 is respectively arranged at the top of a horizontal plate 211a, and the horizontal plate 211a is arranged at the top of the support frame 3. The width of the thinning mounting frame 21 of the secondary thinning mechanism 30 is greater than the width of the thinning mounting frame 21 of the primary thinning mechanism 20, and the two ends of the cross plate of the thinning mounting frame 21 of the secondary thinning mechanism 30 are flush with the far sides of the two columns. The width of the gap between the lower roller 22 and the upper roller 23 of the secondary thinning mechanism 30 is smaller than the width of the gap between the lower roller 22 and the upper roller 23 of the primary thinning mechanism 20. The pressing mounting member 2311 of the secondary thinning mechanism 30 is a circular structure.

[0053] Combined with Figures 9 to 14 As shown, the trimming mechanism 40 is arranged between the lower roller 22 of the secondary thinning mechanism 30 and the thinning winding mechanism 50. The trimming mechanism 40 includes a steel roller 41, a cutter assembly 43, a rubber roller 47, and a rubber roller driving assembly.

[0054] Both ends of the steel roller 41 are rotatably arranged inside the two thinning mounting frames 21 of the secondary thinning mechanism 30 through two steel roller bearing seats 411. Part of the steel roller 41 protrudes from the side of the two thinning mounting frames 21 of the secondary thinning mechanism 30 close to the thinning winding mechanism 50. The steel roller 41 is located between the lower roller 22 of the secondary thinning mechanism 30 and the thinning winding mechanism 50.

[0055] The cutter assembly 43 is located below the steel roller 41. The cutter assembly 43 includes two cutter frames 431 arranged oppositely left and right, a cutter lead screw 432, a cutter handwheel 433, two cutter nuts 434 arranged oppositely left and right, two cutter mounting plates 435 arranged oppositely left and right, two cutter modules, and two scraping modules.

[0056] The cutter handwheel 433 is located to the left of the two cutter holders 431. Cutter holder mounting holes are provided on the inner sides of the cutter holders 431 (the inner side refers to the side where the two cutter holders 431 are close to each other). The two ends of the cutter lead screw 432 are rotatably arranged in the cutter holder mounting holes of the two cutter holders 431 through a screw bearing respectively, and one end of the cutter lead screw 432 protrudes out of the outer side of the corresponding cutter holder 431 (the outer side refers to the side where the two cutter holders 431 are away from each other) and is connected to the cutter handwheel 433. Two thread segments are arranged at intervals on the outer peripheral surface of the cutter lead screw 432, and the thread directions of the two thread segments are opposite. Two cutter nuts 434 are respectively in threaded cooperation with the two thread segments. A first through hole is provided at the center of the bottom end of the cutter mounting plate 435, and the two cutter mounting plates 435 are respectively sleeved on the outer peripheries of the two cutter nuts 434 through their respective first through holes.

[0057] Two cutter modules are respectively arranged on the inner sides of the two cutter mounting plates 435, and two scraper modules are respectively arranged on the inner sides of the two cutter mounting plates 435, and the two scraper modules correspond to the two cutter modules respectively. The scraper module and the corresponding cutter module are arranged at intervals along the direction close to the thinning and winding mechanism 50. The steel roller 41 is located above the two cutter modules and the two scraper modules. The two cutter modules are respectively used for cutting the two side edges of the dry film 401 after the second thinning treatment, and the two scraper modules are respectively used for scraping the two pieces of cutting waste cut by the two cutter modules from the roller surface of the steel roller 41.

[0058] Specifically, the cutter module includes a cutter driving member 436, a cutter connecting plate 437, a cutter mounting shaft 4371, and a circular cutter 439. The cutter driving member 436 is a cylinder, and the cutter driving member 436 is disposed inside the corresponding cutter mounting plate 435 (the inside refers to the side where the two cutter mounting plates 435 are close to each other). The cutter connecting plate 437 is disposed on the side of the cutter driving member 436 away from the corresponding cutter mounting plate 435, and a part of the cutter connecting plate 437 protrudes from the top end of the cutter driving member 436. The cutter mounting shaft 4371 is disposed on the side of the top end of the cutter connecting plate 437 away from the cutter driving member 436. Two circular cutter mounting seats 438 are rotatably sleeved on the outer periphery of the cutter mounting shaft 4371 in sequence along the axis of the cutter mounting shaft 4371. In this embodiment, a cutter bearing is provided inside the circular cutter mounting seat 438, and the cutter bearing is sleeved on the outer periphery of the cutter mounting shaft 4371 to provide support for the rotation of the circular cutter mounting seat 438. The two circular cutter mounting seats 438 are fixed to each other, and the circular cutter 439 is clamped between the two circular cutter mounting seats 438, and a part of the circular cutter 439 protrudes from the outer peripheral surface of the two circular cutter mounting seats 438. The cutter driving member 436 is used to drive the cutter connecting plate 437 to move up and down, so as to drive the cutter mounting shaft 4371 to move up and down, and further drive the two circular cutter mounting seats 438 and the circular cutter 439 to move up and down, so that the circular cutter 439 can be pressed against the dry film 401 on the roller surface of the steel roller 41 or separated from the dry film 401 on the roller surface of the steel roller 41.

[0059] The two circular cutter mounting seats 438 are fixed to each other. Specifically: the two circular cutter mounting seats 438 respectively have a first mounting hole position and a second mounting hole position, and cutter fasteners such as screws are installed in the first mounting hole position and the second mounting hole position, so that the two circular cutter mounting seats 438 are fixed together through the first mounting hole position, the second mounting hole position, and the cutter fasteners. The number of the first mounting hole position and the second mounting hole position can be set according to actual conditions.

[0060] The scraper module includes a scraper driving member 441, a scraper connecting plate 442, a scraper seat 443 and a scraper 445. The scraper driving member 441 is a cylinder, and the scraper driving member 441 is arranged inside the corresponding cutter mounting plate 435. The scraper connecting plate 442 is a T-shaped structure. The scraper connecting plate 442 is arranged on the side of the scraper driving member 441 away from the corresponding cutter mounting plate 435, and a part of the scraper connecting plate 442 protrudes from the top end of the scraper driving member 441. The scraper seat 443 is arranged on the top end of the scraper connecting plate 442. The top end of the scraper seat 443 is an inclined surface, and the inclined surface slopes upward in the direction close to the corresponding cutter module. An inclined block 444 is fitted on the inclined surface, and the inclined direction of the inclined block 444 is the same as that of the inclined surface. In this embodiment, the inclined surface is provided with a first through hole, and the inclined block 444 is provided with a second through hole corresponding to the first through hole. A scraper fastener such as a screw is installed in the second through hole and the first through hole. A scraper 445 is clamped between the side of the inclined block 444 close to the corresponding cutter module and the inclined surface, and a part of the scraper 445 protrudes from the end of the inclined block 444 close to the corresponding cutter module. The side of the scraper 445 away from the corresponding cutter mounting plate 435 (that is, the side of the scraper 445 close to the center of the roller surface of the steel roller 41) and the side of the circular cutter 439 away from the corresponding cutter mounting plate 435 (that is, the side of the circular cutter 439 close to the center of the roller surface of the steel roller 41) are located in the same vertical plane. The scraper driving member 441 is used to drive the scraper connecting plate 442 to move up and down, so as to drive the scraper seat 443 to move up and down, and further drive the inclined block 444 and the scraper 445 to move up and down, so that the end of the scraper 445 away from the inclined block 444 can press against the corresponding cutting waste or separate from the corresponding cutting waste.

[0061] In actual application, by rotating the cutter handwheel 433, the rotation of the cutter lead screw 432 can be realized. The rotation of the cutter lead screw 432 can drive the two cutter nuts 434 to move towards or away from each other, thereby driving the two cutter mounting plates 435 to move towards or away from each other, and further driving the two cutter modules and the two scraper modules to move towards or away from each other. In this way, the distance between the circular cutters 439 of the two cutter modules and the distance between the scrapers 445 of the two scraper modules can be adjusted, so as to adapt to the trimming of dry film sheets 401 of different widths, and the application range is wide. When the circular cutters 439 of the two cutter modules are respectively pressed against the dry film sheet 401 on the roller surface of the steel roller 41 and the steel roller 41 rotates, the two circular cutters 439 of the two cutter modules can cut the two side edges of the dry film sheet 401, thereby realizing the trimming of the two side edges of the dry film sheet 401, and thus realizing the trimming treatment of the dry film sheet 401, so that the dry film sheet 401 with the required width can be obtained. After the two pieces of cutting waste formed by cutting the two side edges of the dry film sheet 401 by the circular cutters 439 of the two cutter modules adhere to the roller surface of the steel roller 41, when the ends of the scrapers 445 of the two scraper modules away from the inclined blocks 444 are respectively pressed against the two pieces of cutting waste and the steel roller 41 rotates, the ends of the scrapers 445 of the two scraper modules away from the inclined blocks 444 can scrape the two pieces of cutting waste off the roller surface of the steel roller 41.

[0062] Further, two second through holes corresponding to the first through hole are provided at the bottom end of the cutter mounting plate 435. The first through hole is located between the two second through holes, and a cutter shaft sleeve 447 is disposed through the second through holes. Between the inner sides of the two cutter holders 431, two cutter connecting rods 446 are provided. The two cutter connecting rods 446 and the cutter lead screw 432 are arranged parallel to each other front and back. The cutter lead screw 432 is located between the two cutter connecting rods 446. The cutter shaft sleeves 447 in the two second through holes are respectively sleeved on the outer peripheries of the two cutter connecting rods 446 and can move along the corresponding cutter connecting rods 446 respectively. A first C-shaped member 448 is sleeved on the outer periphery of one end of the cutter shaft sleeve 447 away from the center of the corresponding cutter connecting rod 446. Two first C-shaped member mounting holes 4481 are respectively provided at both ends of the first C-shaped member 448. The first C-shaped member mounting holes 4481 extend to the outer peripheral surface of the first C-shaped member 448. First bolts are installed in the two first C-shaped member mounting holes 4481, and the first bolts abut against the outer peripheral surface of one end of the cutter shaft sleeve 447 away from the center of the corresponding cutter connecting rod 446. A second C-shaped member 449 is provided at one end of the first C-shaped member 448 away from the center of the corresponding cutter connecting rod 446. The second C-shaped member 449 is sleeved on the outer periphery of the corresponding cutter connecting rod 446. Two second C-shaped member mounting holes 4491 are respectively provided at both ends of the second C-shaped member 449. The second C-shaped member mounting holes 4491 extend to the outer peripheral surface of the second C-shaped member 449. Second bolts are installed in the two second C-shaped member mounting holes 4491, and the second bolts abut against the outer peripheral surface of the corresponding cutter connecting rod 446. The two provided cutter connecting rods 446 can provide a guiding function for the forward or backward movement of the two cutter mounting plates 435. The provided first C-shaped member 448 and second C-shaped member 449 can fix the cutter shaft sleeve 447 on the corresponding cutter connecting rod 446 to prevent the cutter shaft sleeve 447 from moving along the corresponding cutter connecting rod 446.

[0063] When it is necessary to reduce the distance between the circular cutters 439 of the two cutter modules and the distance between the scrapers 445 of the two scraper modules, the first bolt on the first C-shaped part 448 and the second bolt on the second C-shaped part 449 can be removed first, and then the cutter handwheel 433 is rotated, which can drive the rotation of the cutter lead screw 432, and further drive the two cutter nuts 434 to move towards each other. The opposite movement of the two cutter nuts 434 can drive the two cutter mounting plates 435 to move towards each other. The opposite movement of the two cutter mounting plates 435 can drive the two cutter modules and the two scraper modules to move towards each other, and can also drive the corresponding cutter bushings 447 to move along the corresponding cutter connecting rods 446. In this way, the distance between the circular cutters 439 of the two cutter modules and the distance between the scrapers 445 of the two scraper modules are reduced. After that, the first bolt can be installed in the two first C-shaped part mounting holes 4481 of the first C-shaped part 448 and the second bolt can be installed in the two second C-shaped part mounting holes 4491 of the second C-shaped part 449. When it is necessary to increase the distance between the circular cutters 439 of the two cutter modules and the distance between the scrapers 445 of the two scraper modules, the adjustment steps are the same as the previous steps, and the only difference is that the rotation direction of the cutter handwheel 433 is opposite to the rotation direction of the previous steps.

[0064] The bottom ends of the two cutter holders 431 are provided with waste boxes 451. After the two scraper modules scrape the two pieces of cutting waste from the roller surface of the steel roller 41 respectively, the two pieces of cutting waste can fall into the waste boxes 451. In this way, the waste boxes 451 can be used to collect the cutting waste.

[0065] One end of the rubber roller 47 is rotatably connected to the connecting frame 51. The connecting frame 51 is arranged on the left side of the chassis 2. Specifically, two coiling slide rails 512 arranged vertically are provided on the left side of the connecting frame 51, and the coiling slide rails 512 extend in the front-rear direction. A trimming slider 476 is slidably engaged with one end of the coiling slide rail 512 close to the secondary thinning mechanism 30. A first rubber roller mounting plate 475 is provided on the trimming sliders 476 of the two coiling slide rails 512. A second rubber roller mounting plate 474 is provided on the side of the first rubber roller mounting plate 475 away from the two coiling slide rails 512. The first rubber roller mounting plate 475 and the second rubber roller mounting plate 474 have through holes, and a rubber roller sleeve 472 is disposed through the through holes. The third rubber roller mounting plate 473 is arranged parallel to the second rubber roller mounting plate 474 in the left-right direction. One end of the rubber roller sleeve 472 away from the connecting frame 51 is arranged in the hole position of the third rubber roller mounting plate 473. The rubber roller 47 is located between the steel roller 41 and the thinning coiling shaft 52 of the thinning coiling mechanism 50. The roller surface of the rubber roller 47 abuts against the roller surface of the steel roller 41. A rubber roller rotating shaft is formed at one end of the rubber roller 47. The rubber roller rotating shaft partially extends into the rubber roller sleeve 472 and the rubber roller rotating shaft can rotate relative to the rubber roller sleeve 472. A first rubber roller bearing is provided in the rubber roller sleeve 472, and the first rubber roller bearing is sleeved on the outer periphery of the rubber roller rotating shaft to provide support for the rotation of the rubber roller rotating shaft.

[0066] The rubber roller driving assembly is used to drive the rubber roller 41 to rotate. Specifically, the rubber roller driving assembly includes a rubber roller driving member 481 and a rubber roller synchronous belt assembly. The rubber roller driving member 481 is a motor. The rubber roller driving member 481 is arranged on the side of the top of the third rubber roller mounting plate 473 away from the second rubber roller mounting plate 474 through a motor base. The rubber roller synchronous belt assembly includes a rubber roller driving wheel 482, a rubber roller driven wheel 483, and a rubber roller synchronous belt 484 sleeved on the outer peripheries of the rubber roller driving wheel 482 and the rubber roller driven wheel 483. The rubber roller driving wheel 482 is sleeved on the outer periphery of the end of the output shaft of the rubber roller driving member 481 and is located in the motor base. The rubber roller driven wheel 483 is sleeved on the outer periphery of the rubber roller rotating shaft. The rubber roller driving member 481 is used to drive the rubber roller driving wheel 482 to rotate, so that the rubber roller rotating shaft can be driven through the rubber roller driven wheel 483 and the rubber roller synchronous belt 484, and thus the rubber roller 47 can be driven to rotate. The rotation of the rubber roller 47 can drive the steel roller 41 and the rubber roller support 471 to rotate synchronously.

[0067] Combined Figures 13 to 15 As shown, the thinning coiling mechanism 50 includes a thinning coiling mounting plate 511, a thinning coiling shaft 52, a thinning coiling synchronous belt assembly, a thinning coiling driving member 53, and an adjusting driving member 55.

[0068] The thinning and winding mounting plate 511 is located behind the first rubber roller mounting plate 475, the second rubber roller mounting plate 474, and the third rubber roller mounting plate 473. The thinning and winding mounting plate 511 is slidably arranged on the left side of the connecting frame 51, and the thinning and winding mounting plate 511 can slide relative to the connecting frame 51 in a direction close to or away from the trimming mechanism 40. Specifically, on one side of the thinning and winding mounting plate 511 close to the connecting frame 51, there are two winding sliders 513 corresponding to the two winding slide rails 512 respectively. The two winding sliders 513 are respectively in sliding fit with the corresponding winding slide rails 512 and can slide back and forth along the corresponding winding slide rails 512 respectively. It can be understood that the number of the winding sliders 513 can be set according to the actual situation.

[0069] The thinning and winding shaft 52 is located to the left of the thinning and winding mounting plate 511. There is a vacant position 514 between the two winding slide rails 512 on the left side of the connecting frame 51. On the side of the thinning and winding mounting plate 511 away from the connecting frame 51, there is a mounting hole corresponding to the vacant position 514. One end of the thinning and winding shaft 52 passes through the mounting hole of the thinning and winding mounting plate 511, the vacant position 514 of the connecting frame 51 and is connected to the thinning and winding driving member 53 through the thinning and winding synchronous belt assembly. The thinning and winding driving member 53 is a motor. On the side of the thinning and winding mounting plate 511 close to the connecting frame 51, there is a support rod 5311. The end of the support rod 5311 away from the thinning and winding mounting plate 511 passes through the vacant position 514 and is connected to the winding support plate 531. The number of the support rods 5311 can be set according to the actual situation. There is a concave position 51a on the right side of the connecting frame 51, and the winding support plate 531 is located in the concave position 51a. The thinning and winding driving member 53 is arranged through the hole position at one end of the winding support plate 531 and is located behind the thinning and winding shaft 52. The thinning and winding driving member 53 is connected to the side of the winding support plate 531 close to the thinning and winding mounting plate 511 through a motor plate. The thinning and winding driving member 53 is used to drive the thinning and winding shaft 52 to rotate relative to the thinning and winding mounting plate 511 through the thinning and winding synchronous belt assembly.

[0070] A winding bearing is arranged in the mounting hole of the thinning and winding mounting plate 511. The winding bearing is sleeved on the outer periphery of the thinning and winding shaft 52 to provide support for the rotation of the thinning and winding shaft 52.

[0071] The thinning winding synchronous belt assembly is located between the bottom of the concave position 51a of the winding support plate 531 and the connecting frame 51. The thinning winding synchronous belt assembly includes a thinning winding driving pulley 541, a thinning winding driven pulley 542, and a thinning winding synchronous belt 543 sleeved between the thinning winding driving pulley 541 and the thinning winding driven pulley 542. The thinning winding driving pulley 541 is sleeved on the outer periphery of the end of the output shaft of the thinning winding driving member 53, and the thinning winding driven pulley 542 is sleeved on the outer periphery of one end of the thinning winding shaft 52. The thinning winding driving member 53 is used to drive the thinning winding driving pulley 541 to rotate, so that the thinning winding shaft 52 can be driven to rotate through the thinning winding synchronous belt 543 and the thinning winding driven pulley 542. In actual application, first, the winding reel 302 is sleeved on the outer periphery of the thinning winding shaft 52, and the thinning winding shaft 52 is driven to rotate by the thinning winding driving member 53, so that the trimmed dry film 401 can be wound by the thinning winding shaft 52, and the trimmed dry film 401 is wound on the outer periphery of the winding reel 302, thereby obtaining the finished film 402.

[0072] The adjusting driving member 55 is a cylinder. The adjusting driving member 55 is located between the thinning winding mounting plate 511 and the connecting frame 51. The adjusting driving member 55 is horizontally arranged. One end of the adjusting driving member 55 is arranged on the left side of the connecting frame 51 through the cylinder seat 551. The output shaft of the adjusting driving member 55 is connected to the U-shaped push plate 552. The push plate 552 is arranged at one end of the thinning winding mounting plate 511 close to the trimming mechanism 40. Among them, the upper winding slide rail 512 passes through the push plate 552. The adjusting driving member 55 is used to drive the push plate 552 to move in the direction close to or away from the trimming mechanism 40, so that the thinning winding mounting plate 511 can be driven to slide in the direction close to or away from the trimming mechanism 40, so that the thinning winding shaft 52, the thinning winding synchronous belt assembly, the support rod 5311, the winding support plate 531, and the thinning winding driving member 53 can be driven to move in the direction close to or away from the trimming mechanism 40, so as to realize the adjustment of the distance between the thinning winding shaft 52 and the trimming mechanism 40. During the process of winding the trimmed dry film 401 by the thinning winding shaft 52, since the diameter of the finished film 402 wound on the thinning winding shaft 52 will become larger and larger, the adjusting driving member 55 drives the thinning winding shaft 52 to move away from the trimming mechanism 40, so as to increase the distance between the thinning winding shaft 52 and the trimming mechanism 40, which is convenient for the thinning winding shaft 52 to wind the trimmed dry film 401.

[0073] The working principle of the thinning device 4 is as follows: First, the unwinding sleeve 301 wound with the dry film 401 is sleeved on the outer periphery of the thinning unwinding shaft 12, and then the thinning unwinding shaft 12 is driven to rotate by the thinning unwinding driving member, so as to realize the unwinding of the dry film 401. The unwound dry film 401 can pass through the gap of the primary thinning mechanism 20. The lower roller driving member and the upper roller driving member of the primary thinning mechanism 20 respectively drive the lower roller 22 and the upper roller 23 to rotate in opposite directions, and the two pressing driving members 28 of the primary thinning mechanism 30 drive the upper roller 23 to move downward to provide the pressure of roll pressing. Thus, the lower roller 22 and the upper roller 23 of the primary thinning mechanism 20 can roll press the dry film 401 located in the gap, so as to realize the first thinning treatment of the dry film 401. The dry film 401 after the first thinning treatment enters the gap of the secondary thinning mechanism 30. The lower roller driving member and the upper roller driving member of the secondary thinning mechanism 30 respectively drive the lower roller 22 and the upper roller 23 to rotate in opposite directions, and the two pressing driving members 28 of the secondary thinning mechanism 30 drive the upper roller 23 to move downward to provide the pressure of roll pressing. Thus, the lower roller 22 and the upper roller 23 of the secondary thinning mechanism 30 can roll press the dry film 401 located in the gap, so as to realize the second thinning treatment of the dry film 401, and the dry film 401 with the required thickness can be obtained. The dry film 401 after the second thinning treatment bypasses from below the roller surface of the steel roller 41 of the trimming mechanism 40. The rubber roller driving assembly drives the rubber roller 47 to rotate, so that the rubber roller 47 can drive the steel roller 41 to rotate synchronously. At the same time, the cutter driving members 436 of the two cutter modules respectively drive the corresponding circular cutters 439 to move upward, so that the two circular cutters 439 can respectively press against the dry film 401 on the roller surface of the steel roller 41. In this way, the two circular cutters 439 of the two cutter modules can cut the two side edges of the dry film 401, so as to trim the two side edges of the dry film 401 after the second thinning treatment, and the dry film 401 with the required width can be obtained. The cutting waste cut by the circular cutters 439 of the two cutter modules will adhere to the roller surface of the steel roller 41. At this time, the scraper driving members 441 of the two scraper modules respectively drive the corresponding scrapers 445 to move upward, so that the ends of the scrapers 445 of the two scraper modules away from the inclined blocks 444 can respectively press against the two pieces of cutting waste. In this way, the two scrapers 445 of the two scraper modules can scrape off the two pieces of cutting waste adhering to the roller surface of the steel roller 41, and the scraped waste can fall into the waste box 451. The trimmed dry film 401 bypasses from below the roller surface of the rubber roller 47 and is then wound on the winding reel 302 on the outer periphery of the thinning winding shaft 52, and thus the finished film 402 can be obtained.

[0074] The composite device 5 includes a first diaphragm unwinding mechanism 60, a second diaphragm unwinding mechanism 70, a copper foil unwinding mechanism 80, a rolling mechanism 90, and a pole piece winding mechanism 100. The first diaphragm unwinding mechanism 60 and the second diaphragm unwinding mechanism 70 are respectively used for unwinding two finished diaphragms 402. The copper foil unwinding mechanism 80 is used for unwinding copper foil 403. The rolling mechanism 90 is used for rolling the two unwound finished diaphragms 402 and the copper foil 403, so as to respectively laminate the two finished diaphragms 402 on both sides of the copper foil 403, thereby forming a dry-type pole piece 404. The pole piece winding mechanism 100 is used for winding the dry-type pole piece 404. For the convenience of description, the finished diaphragm 402 unwound by the first diaphragm unwinding mechanism 60 is named the first finished diaphragm 402, and the finished diaphragm 402 unwound by the second diaphragm unwinding mechanism 60 is named the second finished diaphragm 402. The first diaphragm unwinding mechanism 60 and the second diaphragm unwinding mechanism 70 are respectively arranged above and in front of the rolling mechanism 90 along the walking paths of the first finished diaphragm 402 and the second finished diaphragm 402. The copper foil unwinding mechanism 80 is arranged in front of the rolling mechanism 90 along the walking path of the copper foil 403. The copper foil unwinding mechanism 80 is located in front of the second diaphragm unwinding mechanism 70. Both the copper foil unwinding mechanism 80 and the second diaphragm unwinding mechanism 70 are located below the thinning device 4. The pole piece winding mechanism 100 is arranged behind the rolling mechanism 90 along the walking path of the dry-type pole piece 404.

[0075] The copper foil unwinding mechanism 80, the second diaphragm unwinding mechanism 70, the rolling mechanism 90, and the pole piece winding mechanism 100 are arranged in sequence from front to back. The first diaphragm unwinding mechanism 60 is located above the rolling mechanism 90. Both the second diaphragm unwinding mechanism 70 and the copper foil unwinding mechanism 80 are located below the thinning device 4.

[0076] Combine Figures 16 to 19As shown in the figure, the first diaphragm unwinding mechanism 60 includes a first diaphragm unwinding mounting frame 62, a first diaphragm unwinding shaft 61, a first diaphragm unwinding driving member 63, and a first diaphragm unwinding synchronous belt assembly (not shown in the figure). The first diaphragm unwinding shaft 61 is located to the left of the first diaphragm unwinding mounting frame 62. The first diaphragm unwinding driving member 63 is disposed through the vacant position 623 of the first diaphragm unwinding mounting frame 62. The first diaphragm unwinding driving member 63 is connected to the rear side of the first diaphragm unwinding mounting frame 62 through a motor plate. The first diaphragm unwinding synchronous belt assembly is located to the right of the first diaphragm unwinding mounting frame 62. One end of the first diaphragm unwinding shaft 61 passes through the through hole of the first diaphragm unwinding mounting frame 62 and is connected to the first diaphragm unwinding driving member 63 through the first diaphragm unwinding synchronous belt assembly. The first diaphragm unwinding driving member 63 is used to drive the first diaphragm unwinding shaft 61 to rotate through the first diaphragm unwinding synchronous belt assembly. In actual application, after the trimmed dry diaphragm 401 is wound by the thinning winding mechanism 50 to obtain the first finished diaphragm 402, the winding reel 302 of the first finished diaphragm 402 is sleeved on the outer periphery of the first diaphragm unwinding shaft 61, and then the first diaphragm unwinding driving member 63 is used to drive the first diaphragm unwinding shaft 61 to rotate, so that the first finished diaphragm 402 can be unwound through the first diaphragm unwinding shaft 61.

[0077] A unwinding bearing is provided in the through hole of the first diaphragm unwinding mounting frame 62. The unwinding bearing is sleeved on the outer periphery of the first diaphragm unwinding shaft 61 to provide support for the rotation of the first diaphragm unwinding shaft 61.

[0078] In this embodiment, the first diaphragm unwinding driving member 63 is a motor. The first diaphragm unwinding synchronous belt assembly includes a first diaphragm unwinding driving pulley, a first diaphragm unwinding driven pulley, and a first diaphragm unwinding synchronous belt sleeved on the outer peripheries of the first diaphragm unwinding driving pulley and the first diaphragm unwinding driven pulley. The first diaphragm unwinding driving pulley is sleeved on the outer periphery of the end of the output shaft of the first diaphragm unwinding driving member 63. The first diaphragm unwinding driven pulley is sleeved on the outer periphery of one end of the first diaphragm unwinding shaft 61. The first diaphragm unwinding driving member 63 is used to drive the first diaphragm unwinding driving pulley to rotate, so that the first diaphragm unwinding shaft 61 can be driven to rotate through the first diaphragm unwinding driven pulley and the first diaphragm unwinding synchronous belt.

[0079] The calendering mechanism 90 includes two calendering mounting frames 91 arranged oppositely left and right, a lower calendering roller 92, an upper calendering roller 93, a lower calendering roller driving member, an upper calendering roller driving member, two jacking driving members 98 arranged oppositely left and right, and two calendering gap adjusting assemblies.

[0080] Two calendering mounting frames 91 are arranged at the top end of the bottom plate 1. The lower calendering roller 92 is located between the two calendering mounting frames 91. Both ends of the lower calendering roller 92 are rotatably arranged on two lower calendering bearing seats 921 respectively. The two lower calendering bearing seats 921 are respectively slidably arranged in the two calendering mounting frames 91 and can slide up and down relative to the corresponding calendering mounting frame 90. In this embodiment, two calendering slide rails 9211 are respectively arranged on the inner walls at both ends of the calendering mounting frame 91. The length direction of the calendering slide rail 9211 is the same as the height direction of the calendering mounting frame 91. The calendering slide rail 9211 is slidably fitted with a calendering slider 9212. The calendering slider 9212 can slide along the corresponding calendering slide rail 9211. The calendering sliders 9212 of the two calendering slide rails 9211 are respectively arranged on both sides of the corresponding lower calendering bearing seat 921.

[0081] The upper calendering roller 93 is located between the two calendering mounting frames 91. The upper calendering roller 93 and the lower calendering roller 92 are arranged opposite to each other up and down and there is a calendering gap between them. Both ends of the upper calendering roller 93 are rotatably arranged on two upper calendering bearing seats 931 respectively. The two upper calendering bearing seats 931 are respectively fixedly arranged in the two calendering mounting frames 91 and are respectively located above the two lower calendering bearing seats 921.

[0082] The lower calendering roller driving member is used to drive the lower calendering roller 92 to rotate. Specifically, the lower calendering roller driving member includes a lower calendering motor 941 and a lower calendering speed reducer 942. The lower calendering speed reducer 942 is arranged on the outer side (the outer side means the side where the two lower calendering bearing seats 921 are away from each other) of the lower calendering bearing seat 921 located on the right through a lower speed reducer seat 9421. The lower calendering motor 941 is arranged on the lower calendering speed reducer 942. The output shaft of the lower calendering motor 941 is connected to the input shaft of the lower calendering speed reducer 941. One end of the lower calendering roller 92 protrudes out of the outer side of the calendering mounting frame 91 located on the right and is connected to the output shaft of the lower calendering speed reducer 942. The lower calendering motor 941 is used to drive the lower calendering roller 92 to rotate through the lower calendering speed reducer 942. The upper calendering roller driving member is used to drive the upper calendering roller 93 to rotate. The rotation directions of the upper calendering roller 93 and the lower calendering roller 92 are opposite. Specifically, the upper calendering roller driving member includes an upper calendering motor 951 and an upper calendering speed reducer 952. The upper calendering speed reducer 952 is arranged on the outer side (the outer side means the side where the two upper calendering bearing seats 931 are away from each other) of the upper calendering bearing seat 931 located on the right through an upper speed reducer seat 9521. The upper calendering motor 951 is arranged on the upper calendering speed reducer 952. The output shaft of the upper calendering motor 951 is connected to the input shaft of the upper calendering speed reducer 952. One end of the upper calendering roller 93 protrudes out of the outer side of the calendering mounting frame 91 located on the right and is connected to the output shaft of the upper calendering speed reducer 952. The upper calendering motor 951 is used to drive the upper calendering roller 93 to rotate through the upper calendering speed reducer 952.

[0083] The jacking drive 98 is a hydraulic cylinder. Two jacking drives 98 are respectively arranged at the bottoms inside two calendering mounting frames 91. Two lower calendering bearing seats 921 are respectively located above the two jacking drives 98 and are respectively connected to the ends of the output shafts of the two jacking drives 98 through two calendering pressure sensors. The two jacking drives 98 are respectively used to drive the two lower calendering bearing seats 921 to move up and down, so as to drive the lower calendering roller 92 to move up and down. Through the upward movement of the lower calendering roller 92, upward pressure can be applied through the lower calendering roller 92 to provide the pressure for calendering.

[0084] In this embodiment, two calendering pressure sensors are respectively arranged between the ends of the output shafts of the two jacking drives 98 and the two lower calendering bearing seats 921. The two jacking drives 98 are used to drive the two lower calendering bearing seats 921 to move up and down through the two calendering pressure sensors. The pressure applied upward through the lower calendering roller 92 can be detected through the calendering pressure sensors.

[0085] During actual application, when the first finished diaphragm 402, the second finished diaphragm 402, and the copper foil 403 enter the calendering gap, at this time the copper foil 403 is located between the first finished diaphragm 402 and the second finished diaphragm 402. The lower calendering roller drive and the upper calendering roller drive are respectively used to drive the lower calendering roller 92 and the upper calendering roller 93 to rotate in opposite directions, and the two jacking drives 98 are used to drive the lower calendering roller 92 to move upward to provide the pressure for calendering. Thus, the first finished diaphragm 402, the second finished diaphragm 402, and the copper foil 403 can be calendered through the lower calendering roller 92 and the upper calendering roller 93. In this way, the first finished diaphragm 402 and the second finished diaphragm 402 are respectively laminated on both sides of the copper foil 403, thereby forming the dry-type pole piece 404.

[0086] The other end of the lower calendering roller 92 protrudes outside the calendering mounting frame 91 on the left and is connected with a lower calendering joint 96. The rotation of the lower calendering roller 92 can drive the lower calendering joint 96 to rotate. A lower calendering oil passage is arranged inside the lower calendering roller 92, and the lower calendering oil passage is communicated with the lower calendering joint 96. The other end of the upper calendering roller 93 protrudes outside the calendering mounting frame 91 on the left and is connected with an upper calendering joint 97. The rotation of the upper calendering roller 93 can drive the upper calendering joint 97 to rotate. An upper calendering oil passage is arranged inside the upper calendering roller 93, and the upper calendering oil passage is communicated with the upper calendering joint 97. During actual application, hot oil can be introduced into the lower calendering oil passage through the lower calendering joint 96 to keep the temperature of the roller surface of the lower calendering roller 92 constant. Hot oil can be introduced into the upper calendering oil passage through the upper calendering joint 97 to keep the temperature of the roller surface of the upper calendering roller 93 constant, ensuring the quality of the dry-type pole piece 404 after calendering.

[0087] Two calendering gap adjusting components and two jacking driving parts 98 are used to adjust the width of the calendering gap, so as to adapt to the production of dry-type pole pieces with different thicknesses, and the applicable range is wide. Each calendering gap adjusting component corresponds to a calendering mounting frame 91, an upper calendering bearing seat 931 and a lower calendering bearing seat 921 respectively. The calendering gap adjusting component includes a wedge block 994, an adjusting screw rod 993 and a gap adjusting driving part. The adjusting screw rod 993 is located in the corresponding calendering mounting frame 91 and between the corresponding upper calendering bearing seat 931 and the lower calendering bearing seat 921. One end of the adjusting screw rod 993 faces the inner wall of the front end of the corresponding calendering mounting frame 91, and the other end of the adjusting screw rod 993 extends out from the through hole of the inner wall of the rear end of the corresponding calendering mounting frame 91 and is connected to the gap adjusting driving part. The wedge block 994 is in threaded cooperation with the adjusting screw rod 993. The bottom end of the wedge block 994 is provided with a first inclined surface, which is inclined upward. The top end of the lower calendering bearing 921 seat is provided with a second inclined surface. The first inclined surface is matched with the second inclined surface of the corresponding lower calendering bearing seat 921. A sliding block is formed at the top end of the wedge block 994. The length direction of the sliding block is the same as the length direction of the wedge block 994. The bottom end of the upper calendering bearing seat 9 is provided with a chute corresponding to the sliding block, and the sliding block is slidably matched with the chute of the corresponding upper calendering bearing seat 931. The gap adjusting driving part is arranged on the outer wall of the rear end of the corresponding calendering mounting frame 91. The gap adjusting driving part is used to drive the adjusting screw rod 993 to rotate, so as to drive the wedge block 994 to slide back and forth relative to the corresponding upper calendering bearing seat 931.

[0088] The gap adjusting driving part includes a gap adjusting motor 991 and a worm and worm gear reducer 992. The worm and worm gear reducer 992 is arranged on the outer wall of the rear end of the corresponding calendering mounting frame 91 through a reducer seat. The gap adjusting motor 991 is arranged on the worm and worm gear reducer 992. The output shaft of the gap adjusting motor 991 is connected to the input shaft of the worm and worm gear reducer 992. The output shaft of the worm and worm gear reducer 992 is connected to the other end of the adjusting screw rod 993. The gap adjusting motor 991 is used to drive the adjusting screw rod 993 to rotate through the worm and worm gear reducer 992.

[0089] In actual application, if it is necessary to increase the width of the calendering gap between the roll surface of the lower calendering roll 92 and the roll surface of the upper calendering roll 93, the gap adjustment driving members of the two calendering gap adjustment assemblies respectively drive the corresponding adjustment screw rods 993 to rotate, so as to drive the corresponding wedge blocks 994 to slide backward. Under the cooperation of the first inclined surface and the corresponding second inclined surface, the corresponding lower calendering bearing block 921 can be pushed downward by the wedge block 994, so as to drive the lower calendering roll 92 to move downward, and thus the width of the calendering gap is increased. If it is necessary to decrease the width of the calendering gap between the roll surface of the lower calendering roll 92 and the roll surface of the upper calendering roll 93, the gap adjustment driving members of the two calendering gap adjustment assemblies respectively drive the corresponding adjustment screw rods 993 to rotate, so as to drive the corresponding wedge blocks 994 to slide forward. When the wedge block 994 reaches a predetermined position, there is a gap between the first inclined surface and the corresponding second inclined surface at this time. At this time, the two jacking driving members 98 respectively drive the two lower calendering bearing blocks 921 to slide upward until the first inclined surface and the corresponding second inclined surface are in cooperation. The upward sliding of the two lower calendering bearing blocks 921 can drive the lower calendering roll 92, the lower calendering roll driving member, and the lower calendering joint 96 to move upward, and thus the width of the calendering gap is decreased.

[0090] In this embodiment, the calendering gap adjustment assembly further includes a magnetic grating ruler. The magnetic strip 9951 of the magnetic grating ruler is arranged on the outside of the corresponding calendering mounting frame 91. The length direction of the magnetic strip 9951 of the magnetic grating ruler is the same as the height direction of the corresponding calendering mounting frame 91. A first connecting block 996 is arranged on one side of the magnetic grating reading head 9952 of the magnetic grating ruler close to the corresponding lower calendering bearing block 921. The first connecting block 996 is slidably arranged on the outside of the corresponding calendering mounting frame 91 through a conventional slide rail and a slider slidably matched with the slide rail. A connecting head is arranged at the top of the first connecting block 996. A fixing block 9213 is arranged on one side of the lower calendering bearing block 921 close to the magnetic grating ruler. The connecting head is connected to the fixing block 9213 of the corresponding lower calendering bearing block 921 through a second connecting block 997. The magnetic strip 9951, the magnetic grating reading head, and the first connecting block 996 are all close to the front end of the corresponding calendering mounting frame 91. The up-and-down sliding of the lower calendering bearing block 921 can drive the fixing block 9213 to move up and down, so that the first connecting block 996 can be driven to slide up and down on the outside of the corresponding calendering mounting frame 91 through the second connecting block 997 and the connecting head, and further drive the magnetic grating reading head 9952 to move up and down along the magnetic strip 9951. By moving the magnetic grating reading head 9952 up and down along the magnetic strip 9951, the magnetic grating ruler can measure the distance that the two lower calendering bearing blocks 921 move up and down, so as to measure the distance that the lower calendering roll 92 moves up and down. By measuring the distance that the lower calendering roll 92 moves, it is convenient to adjust the width of the calendering gap during the next production of the dry electrode sheet.

[0091] The composite device 5 further includes a first diaphragm over-roller 201, a first diaphragm deviation rectification sensor 121, and a first diaphragm deviation rectification mechanism 120. The first diaphragm over-roller 201 and the first diaphragm deviation rectification sensor 121 are sequentially arranged along the traveling path of the first finished diaphragm 402. Both ends of the first diaphragm over-roller 201 are rotatably arranged at the top ends of two calendering mounting brackets 91 through two over-roller bearing seats respectively. The first diaphragm over-roller 201 is located in front of the first diaphragm unwinding shaft 61. The first diaphragm over-roller 201 is used to support the first finished diaphragm 402. The first diaphragm deviation rectification sensor 121 is located between the two calendering mounting brackets 91 and in front of the upper calendering roller 93, and the first diaphragm deviation rectification sensor 121 is close to the calendering mounting bracket 91 on the right side. In practical applications, the first diaphragm deviation rectification sensor 121 corresponds to one side edge, i.e., the right side edge, of the unwound first finished diaphragm 402. The first diaphragm deviation rectification sensor 121 is a horseshoe-shaped ultrasonic sensor. A first deviation rectification mounting block 1212 is provided at the closed end of the first diaphragm deviation rectification sensor 121. One end of the first deviation rectification mounting block 1212 far from the first diaphragm deviation rectification sensor 121 is connected to a first deviation rectification rod 1211. Both ends of the first deviation rectification rod 1211 are respectively arranged at the top ends of the two calendering mounting brackets 91. The first deviation rectification rod 1211 is located in front of the first diaphragm over-roller 201. In practical applications, the first finished diaphragm 402 unwound by the first diaphragm unwinding mechanism 60 first bypasses from the front of the roller surface of the first diaphragm over-roller 201, and then enters the calendering gap between the roller surfaces of the lower calendering roller 92 and the upper calendering roller 93. During the unwinding process of the first finished diaphragm 402, one side edge in the length direction of the first finished diaphragm 402, i.e., the right side edge, passes through the inside of the first diaphragm deviation rectification sensor 121. The position of the right side edge in the length direction of the first finished diaphragm 402 can be detected through the first diaphragm deviation rectification sensor 121. In this way, the position of the first finished diaphragm 402 unwound by the first diaphragm unwinding mechanism 60 can be detected.

[0092] The first diaphragm deviation rectifying mechanism 120 includes a first diaphragm deviation rectifying mounting plate 1201, a second diaphragm deviation rectifying mounting plate 1202, and a first diaphragm deviation rectifying driving member 1203. The first diaphragm deviation rectifying mounting plate 1201 is disposed at the top of two calendering mounting frames 91. The second diaphragm deviation rectifying mounting plate 1202 is slidably disposed on the front side of the first diaphragm deviation rectifying mounting plate 1201 through a conventional slide rail and a slider slidably engaged with the slide rail. The first diaphragm unwinding mounting frame 62 of the first diaphragm unwinding mechanism 60 is disposed on the front side of the second diaphragm deviation rectifying mounting plate 1202. The first diaphragm deviation rectifying driving member 1203 is a servo electric cylinder. The first diaphragm deviation rectifying driving member 1203 is disposed at the rear side of the first diaphragm deviation rectifying mounting plate 1201 and is connected to the second diaphragm deviation rectifying mounting plate 1202 through a deviation rectifying mounting block 1204. The deviation rectifying mounting block 1204 is disposed through a through hole of the first diaphragm deviation rectifying mounting plate 1201. The first diaphragm deviation rectifying driving member 1203 is used to drive the second diaphragm deviation rectifying mounting plate 1202 to move left and right through the deviation rectifying mounting block 1204, so as to drive the first diaphragm unwinding mounting frame 60 of the first diaphragm unwinding mechanism 60 to move left and right, and further drive the first diaphragm unwinding shaft 61, the first diaphragm unwinding driving member 63, and the first diaphragm unwinding synchronous belt assembly to move left and right. In actual application, the position of the first finished diaphragm 402 unwound by the first diaphragm unwinding mechanism 60 can be detected by the first diaphragm unwinding deviation rectifying sensor 121. For example, when it is detected that the position of the first finished diaphragm 402 is deviated, such as deviated to the left, at this time, the second diaphragm deviation rectifying mounting plate 1202 is driven to move right by the first diaphragm deviation rectifying driving member 1203, so as to drive the first diaphragm unwinding shaft 61 to move right, so as to correct the position of the first finished diaphragm 402 during unwinding.

[0093] Combined Figure 20 with Figure 21 shown in the figure, the second diaphragm unwinding mechanism 70 includes a second diaphragm unwinding mounting frame 72, a second diaphragm unwinding shaft 71, a second diaphragm unwinding driving member 73, and a second diaphragm unwinding synchronous belt assembly. The second diaphragm unwinding shaft 71 is located to the left of the second diaphragm unwinding mounting frame 72. One end of the second diaphragm unwinding shaft 71 passes through a through hole of the second diaphragm unwinding mounting frame 72 and is connected to the second diaphragm unwinding driving member 73 through the second diaphragm unwinding synchronous belt assembly. The second diaphragm unwinding driving member 73 is used to drive the second diaphragm unwinding shaft 71 to rotate through the second diaphragm unwinding synchronous belt assembly. In actual application, after the trimmed dry film 401 is wound by the thinning winding mechanism 50 to obtain the second finished diaphragm 402, the winding reel 302 of the second finished diaphragm 402 is sleeved on the outer periphery of the second diaphragm unwinding shaft 71, and then the second diaphragm unwinding driving member 73 is used to drive the second diaphragm unwinding shaft 71 to rotate, so that the second finished diaphragm 402 can be unwound through the second diaphragm unwinding shaft 71.

[0094] In this embodiment, a unwind support plate 721 is provided at the rear side of the second diaphragm unwind mounting bracket 72 through an unwind connecting column 7211, and the number of unwind connecting columns 7211 can be set according to actual conditions. The output shaft of the second diaphragm unwind driving member 73 penetrates through the through hole of the unwind support plate 721. The second diaphragm unwind driving member 73 is a motor. The second diaphragm unwind synchronous belt assembly is located between the second diaphragm unwind mounting bracket 72 and the unwind support plate 721. The second diaphragm unwind synchronous belt assembly includes a second diaphragm unwind driving pulley 741, a second diaphragm unwind driven pulley 742, and a second diaphragm unwind synchronous belt 743 sleeved on the outer peripheries of the second diaphragm unwind driving pulley 741 and the second diaphragm unwind driven pulley 742. The second diaphragm unwind driving pulley 741 is sleeved on the outer periphery of the end of the output shaft of the second diaphragm unwind driving member 73, and the second diaphragm unwind driven pulley 742 is sleeved on the outer periphery of one end of the second diaphragm unwind shaft 71. The second diaphragm unwind driving member 73 is used to drive the second diaphragm unwind driving pulley 741 to rotate, so as to drive the second diaphragm unwind shaft 71 to rotate through the second diaphragm unwind driven pulley 742 and the second diaphragm unwind synchronous belt 743.

[0095] A unwind bearing is provided in the through hole of the second diaphragm unwind mounting bracket 72. The unwind bearing is sleeved on the outer periphery of the second diaphragm unwind shaft 71 to support the rotation of the second diaphragm unwind shaft 71.

[0096] The compounding device 5 further includes a second diaphragm idler roller 202, a second diaphragm deviation correction sensor 122, and a third diaphragm idler roller 203 (see Figure 16 and Figure 19)。Both ends of the second diaphragm roller 202 are rotatably arranged on the inner walls at both ends of the roller frame 2021. The roller frame 2021 is arranged on the left side of the second diaphragm unwinding mounting frame 72, and the second diaphragm roller 202 is located above the second diaphragm unwinding shaft 71. The second diaphragm roller 202 is used to support the second finished diaphragm 402. There is a deviation rectification support block 1226 above and behind the second diaphragm roller 202. One end of the deviation rectification support block 1226 is arranged on the left side of the connecting frame 51, and the other end of the deviation rectification support block 1226 extends leftward. Both ends of the diaphragm deviation rectification screw rod 1223 are rotatably arranged at the top end of the deviation rectification support block 1226 through screw rod bearing seats 1224, and one end of the diaphragm deviation rectification screw rod 1223 is connected to the diaphragm deviation rectification handwheel 1225. The diaphragm deviation rectification screw rod 1223 has two thread sections with opposite helix directions, and two diaphragm deviation rectification nuts 1222 are respectively in threaded cooperation with the two thread sections. The diaphragm deviation rectification nuts 1222 are slidably matched with the diaphragm deviation rectification slide rails at the top end of the deviation rectification support block 1226 through diaphragm deviation rectification sliders 1227. The second diaphragm deviation rectification sensor 122 is located above the second diaphragm unwinding mechanism 70 and in front of the calendering mechanism 70. Specifically, there are two second diaphragm deviation rectification sensors 122, and the second diaphragm deviation rectification sensors 122 are horseshoe-shaped ultrasonic sensors. The two second diaphragm deviation rectification sensors 122 are arranged opposite to each other left and right and are located behind the diaphragm deviation rectification screw rod 1223. The closed ends of the second diaphragm deviation rectification sensors 122 are provided with second deviation rectification mounting blocks 1221, and the second deviation rectification mounting blocks 1221 of the two second diaphragm deviation rectification sensors 122 are respectively connected to the two diaphragm deviation rectification nuts 1222. The two second diaphragm deviation rectification sensors 122 respectively correspond to the two side edges of the second finished diaphragm 402. By manually rotating the diaphragm deviation rectification handwheel 1225, the diaphragm deviation rectification screw rod 1223 can be driven to rotate, so that the two diaphragm deviation rectification nuts 1222 can be driven to move towards or away from each other, so that the two second diaphragm deviation rectification sensors 122 can be driven to move towards or away from each other, so that the distance between the two second diaphragm deviation rectification sensors 122 can be adjusted, so as to adapt to finished diaphragms 402 of different widths. Both ends of the third diaphragm roller 203 are respectively rotatably arranged at the front ends of the two calendering mounting frames 91 through two roller bearing seats, and the third diaphragm roller 203 is located below the calendering gap.In actual application, the second finished diaphragm 402 unwound by the second diaphragm unwinding shaft 71 of the second diaphragm unwinding mechanism 70 first bypasses from the front of the surface of the second diaphragm roller 202, then bypasses from above the surface of the third diaphragm roller 203, and then enters the calendering gap between the surfaces of the lower calendering roller 92 and the upper calendering roller 93. During this process, the two side edges in the length direction of the second finished diaphragm 402, namely the left edge and the right edge, respectively pass through the interiors of the two second diaphragm deviation rectifying sensors 122. By means of the two second diaphragm deviation rectifying sensors 122, the positions of the left edge and the right edge in the length direction of the second finished diaphragm 402 can be detected. In this way, the position of the second finished diaphragm 402 unwound by the second diaphragm unwinding mechanism 70 can be detected.

[0097] The compounding device 5 further includes a second diaphragm deviation rectifying mechanism 130. The second diaphragm deviation rectifying mechanism 130 includes a second diaphragm deviation rectifying driving member 1301, and the second diaphragm deviation rectifying driving member 1301 is a servo electric cylinder. The second diaphragm unwinding mounting frame 72 is arranged at the top of the horizontal plate 722. The horizontal plate 722 is slidably arranged at the top of the bottom plate 1 through a conventional slide rail 7221 and a slider 7222 slidably matched with the slide rail 7221. The second diaphragm deviation rectifying driving member 1301 is arranged at the top of the bottom plate 1. The output shaft of the second diaphragm deviation rectifying driving member 1301 is connected to the rear side of the second diaphragm unwinding mounting plate 72. The second diaphragm deviation rectifying driving member 1301 is used to drive the second diaphragm unwinding mounting frame 72 of the second diaphragm unwinding mechanism to move back and forth, so as to drive the horizontal plate 722, the second diaphragm unwinding shaft 71, the second diaphragm unwinding driving member 73, the second diaphragm unwinding synchronous belt assembly, the second diaphragm roller 202 and the roller frame 2021 to move back and forth. In actual application, the position of the second finished diaphragm 402 unwound by the second diaphragm unwinding mechanism 70 can be detected by the second diaphragm unwinding deviation rectifying sensor 122. For example, when it is detected that the position of the second finished diaphragm 402 is deviated, such as deviated to the left, at this time, the second diaphragm deviation rectifying driving member 1301 drives the second diaphragm unwinding mounting frame 72 to move to the right, so as to drive the second diaphragm unwinding shaft 71 to move to the right. In this way, the position of the unwound second finished diaphragm 402 can be corrected to ensure that the two sides in the length direction of the second finished diaphragm 402 are flush with the two sides in the length direction of the first finished diaphragm 402.

[0098] Combined with Figure 22 and Figure 23As shown in the figure, the copper foil unwinding mechanism 80 includes a copper foil unwinding shaft 81, a first copper foil unwinding mounting plate 82, a second copper foil unwinding mounting plate 83, a copper foil unwinding driving member 84, and a copper foil unwinding synchronous belt assembly. The copper foil unwinding shaft 81 and the first copper foil unwinding mounting plate 82 are respectively located on the left and right sides of the first vertical plate 101. The first vertical plate 101 is provided on the front side of the chassis 2 and the top end of the bottom plate 1, and the first vertical plate 101 is located below the thinning device 4. One end of the copper foil unwinding shaft 81 forms a copper foil mounting shaft 811. The copper foil mounting shaft 811 passes through the vacant position 1011 of the first vertical plate 101 and is rotatably provided at the top end of the first copper foil unwinding mounting plate 82 through, for example, two unwinding bearing seats 812. The second copper foil unwinding mounting plate 83 is provided at the top end of the first copper foil unwinding mounting plate 82. The end of the copper foil mounting shaft 811 away from the copper foil unwinding shaft 81 passes through the through hole of the second copper foil unwinding mounting plate 83 and is connected to the copper foil unwinding driving member 84 through the copper foil unwinding synchronous belt assembly. The copper foil unwinding driving member 84 is used to drive the copper foil mounting shaft 811 to rotate through the copper foil unwinding synchronous belt assembly, so as to drive the copper foil unwinding shaft 81 to rotate. In actual application, after the copper foil reel wound with the copper foil 403 is sleeved on the outer periphery of the copper foil unwinding shaft 81, the copper foil unwinding shaft 81 is driven to rotate by the copper foil unwinding driving member 84, so that the copper foil 403 can be unwound through the copper foil unwinding shaft 81.

[0099] In this embodiment, the copper foil unwinding driving member 84 is a motor. The copper foil unwinding driving member 84 is provided on the side of the second copper foil unwinding mounting plate 83 close to the first vertical plate 101, and the output shaft of the copper foil unwinding driving member 84 passes through the through hole of the second copper foil unwinding mounting plate 83. The copper foil unwinding synchronous belt assembly includes a copper foil unwinding driving pulley 851, a copper foil unwinding driven pulley 852, and a copper foil unwinding synchronous belt 853 sleeved on the outer peripheries of the copper foil unwinding driving pulley 851 and the copper foil unwinding driven pulley 852. The copper foil unwinding driving pulley 851 is sleeved on the outer periphery of the end of the output shaft of the copper foil unwinding driving member 84, and the copper foil unwinding driven pulley 852 is sleeved on the outer periphery of the end of the copper foil mounting shaft 811 away from the copper foil unwinding shaft 81. The copper foil unwinding driving member 84 is used to drive the copper foil unwinding driving pulley 851 to rotate, so as to drive the copper foil mounting shaft 811 to rotate through the copper foil unwinding driven pulley 852 and the copper foil unwinding synchronous belt 853.

[0100] The composite device further includes a first copper foil over-roller 204 and a first copper foil deviation rectification sensor 123 which are arranged between the copper foil unwinding mechanism 80 and the rolling mechanism 90 along the traveling path of the copper foil 403. The first copper foil over-roller 204 is located above the copper foil unwinding shaft 81. Both ends of the first copper foil over-roller 204 are rotatably arranged on two copper foil over-roller bearing seats 2041 respectively. A first copper foil over-roller frame 2042 is provided on the front side of the first vertical plate 101. The two copper foil over-roller bearing seats 2041 are slidably arranged at the top of the first copper foil over-roller frame 2042 respectively through conventional slide rails 2044 and sliders 2045 which are slidably matched with the slide rails 2044. An over-roller mounting shaft 2043 is formed at one end of the first copper foil over-roller 204. The over-roller mounting shaft 2043 is arranged through a first through hole of the first vertical plate 101. A first over-roller connection block 2047 is provided at the end of the over-roller mounting shaft 2043 far away from the first copper foil over-roller 204. The top end of the first over-roller connection block 2047 is connected to the top end of the second over-roller connection block 2048. The bottom end of the second over-roller connection block 2048 is connected to the front side of the first copper foil unwinding mounting plate 82. The first copper foil over-roller 204 is used for supporting the copper foil 403. The first copper foil deviation rectification sensor 123 is located above the copper foil unwinding shaft 81 and behind the first copper foil over-roller 204. The first copper foil deviation rectification sensor 123 is a horseshoe-shaped ultrasonic sensor. A first copper foil deviation rectification mounting block 1233 is provided at the closed end of the first copper foil deviation rectification sensor 123. The first copper foil deviation rectification mounting block 1233 is connected to one end of a deviation rectification sliding member 1231. The other end of the deviation rectification sliding member 1231 is sleeved on the outer periphery of a copper foil deviation rectification support rod 1232. One end of the copper foil deviation rectification support rod 1232 extends leftward. The other end of the copper foil deviation rectification support rod 1232 is arranged on the left side of the first vertical plate 101. In practical application, the first copper foil deviation rectification sensor 123 corresponds to one side edge of the copper foil 403, i.e., the right side edge. The copper foil 403 unwound from the copper foil unwinding shaft 81 of the copper foil unwinding mechanism 80 first bypasses above the roller surface of the first copper foil over-roller 204, and then one side edge of the copper foil 403 in the length direction, i.e., the right side edge, passes through the inside of the first copper foil deviation rectification sensor 123. By means of the first copper foil deviation rectification sensor 123, the position of the right side edge of the copper foil 403 in the length direction can be detected, so that the position of the copper foil 403 unwound by the copper foil unwinding mechanism 80 can be detected.

[0101] The composite device 5 further includes a first copper foil deviation rectifying mechanism 140, and the first copper foil deviation rectifying mechanism 140 includes a first copper foil deviation rectifying mounting plate 1402, a first copper foil deviation rectifying connecting block 1403 and a first copper foil deviation rectifying driving member 1401. The first copper foil deviation rectifying mounting plate 1402 is disposed through the vacancy 1011 of the first vertical plate 101, and the front side and the rear side of the first copper foil deviation rectifying mounting plate 1402 are respectively connected to the rear side of the second vertical plate 101 through a deviation rectifying rib plate 1407. The first copper foil unwinding mounting plate 82 is slidably disposed at the top of the first copper foil deviation rectifying mounting plate 1402 through a conventional slide rail 1405 and a slider 1406 slidably engaged with the slide rail 1405. The first copper foil deviation rectifying connecting block 1403 is in a Z shape. The first copper foil deviation rectifying connecting block 1403 is located below the first copper foil deviation rectifying mounting plate 1402. The first copper foil deviation rectifying mounting plate 1402 has a deviation rectifying hole position 14021, and the length direction of the deviation rectifying hole position 14021 is the same as the length direction of the first copper foil deviation rectifying mounting plate 1402. One end of the first copper foil deviation rectifying connecting block 1403 is connected to the output shaft of the first copper foil deviation rectifying driving member 1401, and the other end of the first copper foil deviation rectifying connecting block 1403 passes through the deviation rectifying hole position 14021 and is provided with a second copper foil deviation rectifying connecting block 1404. The first copper foil unwinding mounting plate 82 is located above the second copper foil deviation rectifying connecting block 1404 and is connected to the second copper foil deviation rectifying connecting block 1404. The first copper foil deviation rectifying driving member 1401 is a servo electric cylinder. The first copper foil deviation rectifying driving member 1401 is disposed on the right side of the first vertical plate 101. The first copper foil deviation rectifying driving member 1401 is used to drive the first copper foil deviation rectifying connecting block 1403 to move left and right, so that the first copper foil unwinding mounting plate 82 of the copper foil unwinding mechanism 80 can be driven to move left and right through the second copper foil deviation rectifying connecting block 1404, so that the second copper foil unwinding mounting plate 83, the copper foil unwinding driving member 84, the copper foil unwinding synchronous belt assembly, the copper foil mounting shaft 811, the first roller connecting block 2047 and the second roller connecting block 2048 can be driven to move left and right. The left and right movement of the copper foil mounting shaft 811 can drive the copper foil unwinding shaft 81 to move left and right. The left and right movement of the first roller connecting block 2047 can drive the roller mounting shaft 2043 and the first copper foil roller 204 to move left and right. In practical applications, the position of the copper foil 403 unwound by the copper foil unwinding mechanism 80 can be detected by the first copper foil deviation rectifying sensor 123. For example, when it is detected that the position of the copper foil 403 is deviated, such as deviated to the left, at this time, the first copper foil deviation rectifying driving member 1401 drives the copper foil unwinding mounting plate 82 to move to the right, so that the copper foil unwinding shaft 81 can be driven to move to the right, so as to correct the position of the unwound copper foil 403, ensure that both sides of the length direction of the copper foil 403 are flush with both sides of the length direction of the second finished film sheet 402 and both sides of the length direction of the first finished film sheet 402, and improve the quality of the obtained dry electrode sheet 404.

[0102] In this embodiment, a notch corresponding to the first vertical plate 101 is provided on the front side of the chassis 2. Components located behind the first vertical plate 101, such as the copper foil unwinding drive member 84, the copper foil unwinding synchronous belt assembly, the first over-roller connecting block 2047, and the second over-roller connecting block 2048, are located inside the chassis 2, and the remaining components located behind the first vertical plate 101 are partially located inside the chassis 2.

[0103] Combined with Figures 24 to 27 As shown, the composite device 50 further includes a second copper foil over-roller 205, a swing rod mechanism 150, a third copper foil over-roller 206, a tension detection mechanism 160, a second copper foil deviation correction mechanism 170, a second copper foil deviation correction sensor 124, and a fourth copper foil over-roller 207 arranged in sequence along the walking path of the copper foil 403 between the second copper foil deviation correction sensor 123 and the rolling mechanism 90 (see Figure 16 and Figure 19 ). The second copper foil over-roller 205, the swing rod mechanism 150, the third copper foil over-roller 206, the tension detection mechanism 160, the second copper foil deviation correction mechanism 170, and the second copper foil deviation correction sensor 124 are all located below the thinning device 4. The second copper foil over-roller 205, the swing rod mechanism 150, the third copper foil over-roller 206, and the tension detection mechanism 160 are all located in front of the second diaphragm unwinding mechanism 70. The second copper foil deviation correction mechanism 170 and the second copper foil deviation correction sensor 124 are located between the thinning device 50 and the second diaphragm unwinding mechanism 70.

[0104] As Figure 24 and Figure 25 shown, the second copper foil over-roller 205 and the third copper foil over-roller 206 are respectively used to support the copper foil 403. One end of the second copper foil over-roller 205 is rotatably arranged on the front side of the second vertical plate 102 through the first over-roller bearing seat 2051, and the other end of the second copper foil over-roller 205 is rotatably arranged at the top end of the over-roller support plate 2052 through the second over-roller bearing seat. The bottom end of the over-roller support plate 2052 is arranged at one end of the over-roller support cross beam 2053, and the other end of the over-roller support cross beam 2053 is arranged on the front side of the second vertical plate 102. The second vertical plate 102 is arranged on the top end of the support frame 3 and on the front side of the chassis 2 and is located inside the support frame 3. Both ends of the third copper foil over-roller 206 are rotatably arranged on the inner walls at both ends of the U-shaped copper foil over-roller frame 2061.

[0105] The swing rod mechanism 150 is located below the second copper foil passing roller 205 and the third copper foil passing roller 206. The swing rod mechanism 150 includes a rotating shaft 1502, a U-shaped swing rod frame 1501, a swing roller 1505, and a swing rod driving member 1506. On the inner walls at both ends of the swing rod frame 1501, two swing rod mounting holes are respectively provided. Both ends of the rotating shaft 1502 are rotatably arranged in the two swing rod mounting holes through a rotating shaft bearing. One end of the rotating shaft 1502 extends out of the corresponding swing rod mounting hole, passes through the through hole of the second vertical plate 102 and the through hole on the front side of the chassis 2, and is connected to one end of a rotating shaft connection block 1507. The other end of the rotating shaft connection block 1507 extends forward. The swing rod driving member 1506 is a cylinder. The swing rod driving member 1506 is arranged on the rear side of the second vertical plate 102 through a cylinder seat. The end of the output shaft of the swing rod driving member 1506 is connected with a cylinder joint 15061. The cylinder joint 15061 is arranged at the central position on the side of the rotating shaft connection block 1507 away from the rotating shaft 1502. The swing rod driving member 1506 is located inside the chassis 2. Two swing rod mounting plates 1503 are sleeved on the outer periphery of the rotating shaft 1502. The two swing rod mounting plates 1503 are arranged at intervals along the axial direction of the rotating shaft 1502. A swing rod connection block 1504 is provided between one ends of the two swing rod mounting plates 1503. A swing roller 1505 is rotatably arranged between the other ends of the two swing rod mounting plates 1503. The swing roller 1505 is located below the second copper foil passing roller 205 and the third copper foil passing roller 206. The swing rod driving member 1506 is used to drive the rotating shaft connection block 1570 to swing up and down, so as to drive the rotating shaft 1502 to rotate, so as to drive the two swing rod mounting plates 1503 to rotate, and further drive the swing rod connection block 1504 and the swing roller 1505 to rotate around the axis of the rotating shaft 1502. By rotating the swing roller 1505 around the axis of the rotating shaft 1502, the tension of the copper foil 403 can be adjusted.

[0106] A swing roller 1505 is rotatably arranged between the other ends of the two swing rod mounting plates 1503. Specifically, mounting holes are respectively provided at the other ends of the swing rod mounting plates 1503. Both ends of the swing roller 1505 are rotatably arranged in the mounting holes at the other ends of the two swing rod mounting plates 1503 through a swing roller bearing.

[0107] The tension detection mechanism 160 is located behind the third copper foil passing roller 206. The tension detection mechanism 160 includes a tension detection roller 1601. One end of the tension detection roller 1601 is rotatably arranged on the front side of the second vertical plate 102 through a first tension bearing seat, and the other end of the tension detection roller 1601 is rotatably arranged at one end of a tension cross beam 1603 through a second tension bearing seat 1602. The other end of the tension cross beam 1603 is arranged on the front side of the second vertical plate 102. The tension detection roller 1601 is used to detect the tension of the copper foil 403. In actual application, the copper foil 403 bypasses above the roller surface of the second copper foil passing roller 205, below the roller surface of the swing roller 1505, above the roller surface of the third copper foil passing roller 206, and below the roller surface of the tension detection roller 1601. The tension of the copper foil 403 can be detected through the tension detection roller 1601. For example, when the tension of the copper foil 403 is too small, the swing rod driving member 1506 drives the rotating shaft connecting block 1570 to swing downward, thereby driving the rotating shaft 1502 to rotate clockwise, and further driving the swing roller 1505 to rotate clockwise around the axis of the rotating shaft 1502. In this way, the copper foil 403 can be pulled downward through the swing roller 1505 to increase the tension of the copper foil 403.

[0108] As Figure 26 and Figure 27 shown, the second copper foil deviation correction mechanism 170 includes a copper foil deviation correction mounting frame 1701, a copper foil deviation correction cross plate 1703, two copper foil deviation correction vertical plates 1704 arranged oppositely left and right, a second copper foil deviation correction driving member 1702, and two copper foil deviation correction rollers 1705. The copper foil deviation correction mounting frame 1701 is arranged on the left side of the connecting frame 51. The copper foil deviation correction cross plate 1703 is located at the top of the copper foil deviation correction mounting frame 1701, and the two copper foil deviation correction vertical plates 1704 are both arranged at the top of the copper foil deviation correction cross plate 1703. The second copper foil deviation correction driving member 1702 is a linear motor. The second copper foil deviation correction driving member 1702 is arranged in the copper foil deviation correction mounting frame 1701 and connected to the copper foil deviation correction cross plate 1703. The two copper foil deviation correction rollers 1705 are arranged in parallel front and back. The two ends of the copper foil deviation correction rollers 1705 are respectively rotatably arranged in the mounting holes on the inner sides (the inner side refers to the side where the two copper foil deviation correction vertical plates 1704 are close to each other) of the two copper foil deviation correction vertical plates 1704 through a deviation correction bearing. The second copper foil deviation correction driving member 1702 is used to drive the copper foil deviation correction cross plate 1703 to move left and right, thereby driving the two copper foil deviation correction vertical plates 1704 and the two copper foil deviation correction rollers 1705 to move left and right.

[0109] The second copper foil deviation rectifying sensor 124 is connected to one side of the copper foil deviation rectifying mounting bracket 1701 close to the rolling mechanism 90. Specifically, there are two second copper foil deviation rectifying sensors 124, and the two second copper foil deviation rectifying sensors 124 are arranged opposite to each other left and right. The second copper foil deviation rectifying sensor 124 is a horseshoe-shaped ultrasonic sensor. The two ends of the copper foil deviation rectifying lead screw 1241 are rotatably arranged on one side of the copper foil deviation rectifying mounting bracket 1701 close to the rolling mechanism 90 through two lead screw bearing seats 1242, and one end of the copper foil deviation rectifying lead screw 1241 is connected to the copper foil deviation rectifying handwheel 1243. The copper foil deviation rectifying lead screw 1241 has two thread segments with opposite helix directions. One ends of the two copper foil deviation rectifying nuts are respectively in threaded cooperation with the two thread segments, and the other ends of the two copper foil deviation rectifying nuts extend upward and are respectively connected to one side of the two second copper foil deviation rectifying sensors 124 close to the copper foil deviation rectifying mounting bracket 1701. In actual application, the two second copper foil deviation rectifying sensors 124 respectively correspond to the two side edges of the copper foil 403. By manually rotating the copper foil deviation rectifying handwheel 1243, the copper foil deviation rectifying lead screw 1241 can be driven to rotate, so that the two copper foil deviation rectifying nuts can be driven to move towards or away from each other, and then the two second copper foil deviation rectifying sensors 124 can be driven to move towards or away from each other, so that the distance between the two second copper foil deviation rectifying sensors 124 can be adjusted, so as to adapt to copper foils 403 of different widths.

[0110] Two deviation rectifying guide rollers 1707 are rotatably arranged on the front side and the rear side of the bottom end of the copper foil deviation rectifying mounting bracket 1701 respectively. The two ends of the deviation rectifying guide roller 1707 are rotatably arranged on the corresponding side of the bottom end of the copper foil deviation rectifying mounting bracket 1701 through two deviation rectifying guide roller bearing seats 1706 respectively. The deviation rectifying guide roller 1707 located at the rear is located below the two second copper foil deviation rectifying sensors 124. The two copper foil deviation rectifying rollers 1705 and the two deviation rectifying guide rollers 1707 are respectively used to support the copper foil 403.

[0111] In actual application, two second copper foil deviation correction sensors 124 correspond to the left and right edges of the two sides of the copper foil 403. After the copper foil 403 unrolled by the copper foil unrolling shaft 81 of the copper foil unrolling mechanism 80 bypasses from above the roller surface of the tension detection roller 1601, it successively bypasses from below the roller surface of the deviation correction roller 1707 in the front, above the two copper foil deviation correction rollers 1705, and below the deviation correction roller 1707 in the rear. During this process, the left and right edges of the two sides of the copper foil 403 in the length direction respectively pass through the interiors of the two second copper foil deviation correction sensors 124. By means of the two second copper foil deviation correction sensors 124, the positions of the left and right edges of the copper foil 403 in the length direction can be detected. In this way, the position of the copper foil 403 between the second copper foil deviation correction mechanism 170 and the rolling mechanism 90 can be detected. The position of the copper foil 403 between the second copper foil deviation correction mechanism 170 and the rolling mechanism 90 can be detected by the second copper foil deviation correction sensors 124. For example, when it is detected that the position of the copper foil 403 is deviated, such as deviated to the left, at this time, the second copper foil deviation correction driving member 1702 drives the copper foil deviation correction cross plate 1703 and the two copper foil deviation correction rollers 1705 to move to the right, so as to drive the copper foil 403 bypassing from above the roller surfaces of the two copper foil deviation correction rollers 1705 to move to the right. In this way, the position of the copper foil 403 can be corrected, and further, it can be ensured that the two sides of the copper foil 403 in the length direction are flush with the two sides of the second finished film 402 in the length direction and the two sides of the first finished film 402 in the length direction, and the quality of the obtained dry electrode sheet 404 is further improved.

[0112] Combined with Figure 16 and Figure 19 As shown, both ends of the fourth copper foil roller 207 are rotatably arranged at the front ends of the two rolling mounts 91 through two copper foil roller bearing seats and are located above the third film roller 203. The rolling gap is located between the fourth copper foil roller 207 and the third film roller 203. The fourth copper foil roller 207 is used to support the copper foil 403. In actual application, the copper foil 403 bypasses from above the roller surface of the fourth copper foil roller 207.

[0113] Combined with Figure 28 and Figure 29As shown, the pole piece winding mechanism 100 includes a pole piece winding shaft 1001, a first pole piece winding mounting plate 1002, a second pole piece winding mounting plate 1003, a pole piece winding driving member 1005, a magnetic powder brake 1006, and a pole piece winding synchronous belt assembly. The pole piece winding shaft 1001 and the first pole piece winding mounting plate 1002 are respectively located on the left and right sides of the third vertical plate 103. The third vertical plate 103 is provided on the front side of the chassis 2 and the top end of the bottom plate 1, and the third vertical plate 103 is located behind the rolling mechanism 90. One end of the pole piece winding shaft 1001 forms a pole piece mounting shaft 10011. The pole piece mounting shaft 10011 is arranged through the vacancy of the third vertical plate 103, and the pole piece mounting shaft 10011 is rotatably arranged on the top end of the first pole piece winding mounting plate 1002 through, for example, two pole piece bearing seats 10012. The second pole piece winding mounting plate 1003 is located above the first pole piece winding mounting plate 1002, and both ends of the second pole piece winding mounting plate 1003 are respectively connected to the top end of the first pole piece winding mounting plate 1002 through two pole piece winding vertical plates 1004. The end of the pole piece mounting shaft 10011 away from the pole piece winding shaft 1001 passes through between the two pole piece winding vertical plates 1004 and is connected to the output shaft of the magnetic powder brake 1006. The input shaft of the magnetic powder brake 1006 is connected to the pole piece winding driving member 1005 through the pole piece winding synchronous belt assembly. The pole piece winding driving member 1005 is used to drive the pole piece mounting shaft 10011 to rotate through the pole piece winding synchronous belt assembly and the magnetic powder brake 1006, so as to drive the pole piece winding shaft 1001 to rotate. In actual application, after the pole piece reel is sleeved on the outer circumference of the pole piece winding shaft 1001, the pole piece winding shaft 1001 is driven to rotate by the pole piece winding driving member 1005, so that the dry process pole piece 404 can be wound through the pole piece winding shaft 1001. By setting the magnetic powder brake 1006, the rotation torque of the pole piece winding shaft 1001 can be controlled, so that the tension of the dry process pole piece winding can be controlled.

[0114] In this embodiment, the pole piece winding driving member 1005 is a motor, and the pole piece winding driving member 1005 is arranged at the top of the second pole piece winding mounting plate 1003 through a motor base. The pole piece winding synchronous belt assembly includes a pole piece winding driving pulley 10071, a pole piece winding driven pulley 10072, and a pole piece winding synchronous belt 10073 sleeved on the outer peripheries of the pole piece winding driving pulley 10071 and the pole piece winding driven pulley 10072. The pole piece winding driving pulley 10071 is sleeved on the outer periphery of the end of the output shaft of the pole piece winding driving member 1005, and the pole piece winding driven pulley 10072 is sleeved on the outer periphery of the input shaft of the magnetic powder brake 1006. The pole piece winding driving member 1005 is used to drive the pole piece winding driving pulley 10071 to rotate, so that the input shaft of the magnetic powder brake 1006 can be driven to rotate through the pole piece winding driven pulley 10072 and the pole piece winding synchronous belt 10073, and then the input shaft of the pole piece mounting shaft 10011 can be driven to rotate through the output shaft of the magnetic powder brake 1006.

[0115] The compounding device 5 further includes a winding deviation correction sensor 125, a winding idler roller 209, and a winding deviation correction mechanism 180. The winding deviation correction sensor 125 is located above the pole piece winding shaft 1001. The winding deviation correction sensor 125 is a horseshoe-shaped ultrasonic sensor. A winding deviation correction mounting block 1251 is provided at the closed end of the winding deviation correction sensor 125. One end of a winding deviation correction sliding member 1252 is connected to the winding deviation correction mounting block 1251. The other end of the winding deviation correction sliding member 1252 is slidably sleeved on the outer periphery of a winding deviation correction connecting rod 1253. The winding deviation correction connecting rod 1253 is arranged through a through hole of the third vertical plate 103. One end of the winding deviation correction connecting rod 1253 extends leftward, and the other end of the winding deviation correction connecting rod 1253 is connected to the second pole piece winding mounting plate 1003 through an L-shaped member 1254. The winding idler roller 209 is located behind the winding deviation correction sensor 125 and above the pole piece winding shaft 1001. Both ends of the winding idler roller 209 are rotatably arranged on the inner walls at both ends of a U-shaped winding idler roller frame 2091. The winding idler roller frame 2091 is arranged on the front side of the third vertical plate 103. In practical applications, the winding deviation correction sensor 125 corresponds to one side edge, i.e., the right side edge, of the dry process pole piece 404. After the first finished diaphragm 402, the second finished diaphragm 402, and the copper foil 403 are rolled by the rolling mechanism 90 to obtain the dry process pole piece 404, the dry process pole piece 404 first bypasses from the rear of the roller surface of the winding idler roller 209, and then is wound on the outer periphery of a pole piece reel on the outer periphery of the pole piece winding shaft 1001. During this process, one side edge, i.e., the right side edge, of the dry process pole piece 404 passes through the inside of the winding deviation correction sensor 125. The position of the right side edge of the dry process pole piece 404 can be detected through the winding deviation correction sensor 125. In this way, the position of the dry process pole piece 404 can be detected by the winding deviation correction sensor 125 before the dry process pole piece 404 is wound by the pole piece winding mechanism 100.

[0116] The coiling deviation rectifying mechanism 180 includes a coiling deviation rectifying mounting plate 1802, a first coiling deviation rectifying connecting block 1803, and a coiling deviation rectifying driving member 1801. The coiling deviation rectifying mounting plate 1802 is arranged through the vacancy of the third vertical plate 103, and the front side and the rear side of the coiling deviation rectifying mounting plate 1802 are respectively connected to the rear side of the third vertical plate 103 through coiling rib plates 18021. The first pole piece coiling mounting plate 1002 is slidably arranged at the top of the coiling deviation rectifying mounting plate 1802 through a conventional slide rail 10013 and a slider 10014 slidably matched with the slide rail 10013. The first coiling deviation rectifying connecting block 1803 is in a Z shape. The first coiling deviation rectifying connecting block 1803 is located below the coiling deviation rectifying mounting plate 1802. The coiling deviation rectifying mounting plate 1802 has a communicating hole. One end of the first coiling deviation rectifying connecting block 1803 is connected to the output shaft of the coiling deviation rectifying driving member 1801. The other end of the first coiling deviation rectifying connecting block 1803 passes through the communicating hole and is provided with a second coiling deviation rectifying connecting block 1804. The first pole piece coiling mounting plate 1002 is located above the second coiling deviation rectifying connecting block 1804 and is connected to the second coiling deviation rectifying connecting block 1804. The coiling deviation rectifying driving member 1801 is a servo electric cylinder. The coiling deviation rectifying driving member 1801 is arranged on the right side of the third vertical plate 103. The coiling deviation rectifying driving member 1801 is used to drive the first coiling deviation rectifying connecting block 1803 to move left and right, so that the first pole piece coiling mounting plate 1002 can be driven to move left and right through the second coiling deviation rectifying connecting block 1804, so that the second pole piece coiling mounting plate 1003, the pole piece coiling driving member 1005, the magnetic powder brake 1006, the pole piece coiling synchronous belt assembly, the pole piece mounting shaft 10011, and the pole piece coiling shaft 1001 can be driven to move left and right. The left and right movement of the second pole piece coiling mounting plate 1003 can drive the L-shaped member 1254, the coiling deviation rectifying connecting rod 1253, the coiling deviation rectifying sliding member 1252, the coiling deviation rectifying mounting block 1251, and the coiling deviation rectifying sensor 125 to move left and right. In actual application, the position of the dry method pole piece 404 can be detected through the coiling deviation rectifying sensor 125. For example, when it is detected that the position of the dry method pole piece 404 is deviated, such as deviated to the left, at this time, the first pole piece coiling mounting plate 1002 is driven to move right by the coiling deviation rectifying driving member 1801, so that the pole piece coiling shaft 1001 can be driven to move right, so as to correct the position of the pole piece unwinding shaft 1001 and ensure that the pole piece unwinding shaft 1001 can wind the dry method pole piece 404.

[0117] A notch corresponding to the third vertical plate 103 is provided on the front side of the chassis 2. Components located behind the third vertical plate 103, such as the pole piece coiling driving member 1005, the magnetic powder brake 1006, and the pole piece coiling synchronous belt assembly, are located inside the chassis 2, and the rest of the components are partially located inside the chassis 2.

[0118] The working principle of the composite device 5 is as follows: after the trimmed dry film 401 is wound by the thinning and winding mechanism 50 to obtain the first finished film 402 and the second finished film 402, the winding reels 302 of the first finished film 402 and the second finished film 402 are respectively sleeved on the outer circumferences of the first film unwinding shaft 61 and the second film unwinding shaft 71. At the same time, the copper foil reel wound with the copper foil 403 is sleeved on the outer circumference of the copper foil unwinding shaft 81. Then, the first film unwinding driving member 63 is used to drive the first film unwinding shaft 61 to rotate, the second film unwinding driving member 73 is used to drive the second film unwinding shaft 71 to rotate, and the copper foil unwinding driving member 84 is used to drive the copper foil unwinding shaft 81 to rotate. Thus, the first film unwinding shaft 61 can unwind the first finished film 402, the second film unwinding shaft 71 can unwind the second finished film 402, and the copper foil unwinding shaft 81 can unwind the copper foil 403. The unwound first finished film 402 bypasses the front of the roller surface of the first film idler roller 201 and then enters the rolling gap between the roller surfaces of the lower rolling roller 92 and the upper rolling roller 93. The unwound second finished film 402 bypasses the front of the roller surface of the second film idler roller 202 and the upper part of the roller surface of the third film idler roller 203, and then enters the rolling gap between the roller surfaces of the lower rolling roller 92 and the upper rolling roller 93. The unwound copper foil 403 successively bypasses the upper part of the roller surface of the first copper foil idler roller 204, the upper part of the roller surface of the second copper foil idler roller 205, the lower part of the roller surface of the swing roller 1505, the upper part of the roller surface of the third copper foil idler roller 206, the lower part of the roller surface of the tension detection roller 1601, the lower part of the deviation correction idler roller 1707 in the front, the upper part of the two copper foil deviation correction rollers 1705, the lower part of the deviation correction idler roller 1707 in the rear, and the upper part of the roller surface of the fourth copper foil idler roller 207, and then enters the rolling gap between the roller surfaces of the lower rolling roller 92 and the upper rolling roller 93. The lower rolling roller driving member and the upper rolling roller driving member are respectively used to drive the lower rolling roller 92 and the upper rolling roller 93 to rotate in opposite directions, and two jacking driving members 98 are used to drive the lower rolling roller 92 to move upward to provide the rolling pressure. In this way, the lower rolling roller 92 and the upper rolling roller 93 can roll the first finished film 402, the second finished film 402, and the copper foil 403. In this way, the first finished film 402 and the second finished film 402 are respectively laminated on both sides of the copper foil 403, thereby forming the dry electrode 404. After that, the dry electrode 404 bypasses the rear of the roller surface of the winding idler roller 209, and the electrode winding driving member 1005 is used to drive the electrode winding shaft 1001 to rotate. Thus, the dry electrode 404 can be wound on the outer circumference of the electrode reel on the outer circumference of the electrode winding shaft 1001.

[0119] The utility model realizes the double-sided lamination of two finished diaphragms 402 thinned and trimmed by a thinning device 4 on two sides of a copper foil 403 respectively through a lamination device 5 which includes a first diaphragm unwinding mechanism 60, a second diaphragm unwinding mechanism 70, a copper foil unwinding mechanism 80, a rolling mechanism 90 and a pole piece winding mechanism 100, so as to form a dry-type pole piece 404. Compared with the prior art, in addition to the thinning and trimming functions, the equipment of the utility model also has the function of double-sided lamination of the thinned and trimmed dry-type diaphragm 401 and the copper foil 403. In this way, the thinning and trimming of the dry-type diaphragm 401 and the double-sided lamination of the thinned and trimmed dry-type diaphragm 401 and the copper foil 403 can be completed on the same device, without the need for different devices, which greatly meets the usage requirements.

[0120] The above is a specific description of the preferred embodiment of the utility model, but the creation of the utility model is not limited to the embodiment. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the utility model, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A dry film thinning composite device, comprising a thinning device, characterized in that: It also includes a composite device, which includes a first diaphragm unwinding mechanism, a second diaphragm unwinding mechanism, a copper foil unwinding mechanism, a calendering mechanism and a pole piece winding mechanism. The first diaphragm unwinding mechanism and the second diaphragm unwinding mechanism are respectively used to unwind two finished diaphragms, the copper foil unwinding mechanism is used to unwind the copper foil, the calendering mechanism is used to calender the two unwound finished diaphragms and copper foil so as to composite the two finished diaphragms on both sides of the copper foil, thereby forming a dry-process pole piece, and the pole piece winding mechanism is used to wind the dry-process pole piece. The first diaphragm unwinding mechanism and the second diaphragm unwinding mechanism are respectively arranged above and in front of the calendering mechanism along the walking path of the two finished diaphragms, the copper foil unwinding mechanism is arranged in front of the calendering mechanism along the walking path of the copper foil, the copper foil unwinding mechanism and the second diaphragm unwinding mechanism are both located below the thinning device, and the pole piece winding mechanism is arranged behind the calendering mechanism along the walking path of the dry-process pole piece.

2. The dry film thinning composite equipment according to claim 1, characterized in that: The calendering mechanism includes two calendering mounting frames arranged opposite 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 jacking driving members arranged opposite to each other. The two ends of the lower calendering roller are rotatably arranged on the two lower calendering bearing seats, and the two lower calendering bearing seats are slidably arranged in the two calendering mounting frames respectively. 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, and the two The upper calendering bearing seats are respectively fixedly arranged in 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 at the bottom 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.

3. The dry film thinning composite equipment according to claim 2, characterized in that: The calendering mechanism also includes two calendering gap adjustment components, each of which corresponds to a calendering mounting frame, an upper calendering bearing seat and a lower calendering bearing seat, and the calendering gap adjustment component includes a wedge block, an adjustment screw and a gap adjustment drive member, the adjustment screw is located in the corresponding calendering mounting frame and between the corresponding upper calendering bearing seat and the lower calendering bearing seat, one end of the adjustment screw is opposite to the inner wall of one end of the corresponding calendering mounting frame, and the other end of the adjustment screw extends from the through hole of the inner wall of the other end of the corresponding calendering mounting frame and The wedge block is connected to the gap adjustment driving member, and the wedge block is threadedly matched with the adjusting screw. The bottom end of the wedge block is provided with a first inclined surface, and the top end of the lower rolling bearing seat is provided with a second inclined surface, and the first inclined surface is matched with the second inclined surface of the corresponding lower rolling bearing seat. A sliding block is formed on the top of the wedge block, and a sliding groove is provided at the bottom end of the upper rolling bearing seat. The sliding block is slidably matched with the sliding groove of the corresponding upper rolling bearing seat. The gap adjustment driving member is used to drive the adjusting screw to rotate, thereby driving the wedge block to move forward and backward relative to the corresponding upper rolling bearing seat.

4. The dry film thinning composite equipment according to claim 2, characterized in that: The composite device also includes a first diaphragm correction sensor and a first diaphragm correction mechanism, the first diaphragm correction sensor is used to detect the position of the finished diaphragm unrolled by the first diaphragm unwinding mechanism, the first diaphragm correction mechanism includes a first diaphragm correction mounting plate, a second diaphragm correction mounting plate and a first diaphragm correction driving member, the first diaphragm correction mounting plate is arranged at the top end of the two calendering mounting frames, the second diaphragm correction mounting plate is slidably arranged on the front side of the first diaphragm correction mounting plate, the first diaphragm unwinding mechanism is arranged on the front side of the second diaphragm correction mounting plate, the first diaphragm correction driving member is arranged on the rear side of the first diaphragm correction mounting plate and is connected to the second diaphragm correction mounting plate, the first diaphragm correction driving member is used to drive the second diaphragm correction mounting plate to move left and right, thereby driving the first diaphragm unwinding mechanism to move left and right.

5. The dry film thinning composite equipment according to claim 1, characterized in that: The composite device also includes a second diaphragm deflection correction sensor and a second diaphragm deflection correction mechanism, wherein the second diaphragm deflection correction sensor is used to detect the position of the finished diaphragm unwound by the second diaphragm unwinding mechanism, and the second diaphragm deflection correction mechanism includes a second diaphragm deflection correction drive component, and the second diaphragm deflection correction drive component is used to drive the second diaphragm unwinding mechanism to move forward and backward.

6. The dry film thinning composite equipment according to claim 1, characterized in that: The composite device also includes a first copper foil correction sensor and a first copper foil correction mechanism, wherein the first copper foil correction sensor is used to detect the position of the copper foil unwound by the copper foil unwinding mechanism, the first copper foil correction mechanism includes a first copper foil correction mounting plate, a first copper foil correction connecting block and a first copper foil correction driving member, the first copper foil correction connecting block is located below the first copper foil correction mounting plate, the first copper foil correction mounting plate has a correction hole, one end of the first copper foil correction connecting block is connected to the first copper foil correction driving member, the other end of the first copper foil correction connecting block passes through the correction hole and is provided with a second copper foil correction connecting block, the copper foil unwinding mechanism is slidably arranged on the top of the first copper foil correction mounting plate and connected to the second copper foil correction connecting block, the first copper foil correction driving member is used to drive the first copper foil correction connecting block to move left and right, so that the copper foil unwinding mechanism can be driven to move left and right through the second copper foil correction connecting block.

7. The dry film thinning composite equipment according to claim 6, characterized in that: The composite device also includes a second copper foil correction sensor and a second copper foil correction mechanism, the second copper foil correction mechanism is located between the first copper foil correction sensor and the calendering mechanism and between the thinning device and the second film unwinding mechanism, the second copper foil correction mechanism includes a copper foil correction mounting frame, a copper foil correction horizontal plate, two copper foil correction vertical plates arranged opposite to each other on the left and right, a second copper foil correction driving member and two copper foil correction rollers, the copper foil correction horizontal plate is located at the top of the copper foil correction mounting frame, the two copper foil correction vertical plates are both arranged at the top of the copper foil correction horizontal plate, and the second copper foil correction driving member is arranged at the copper foil correction The copper foil deflection correction device is installed in the copper foil deflection correction mounting frame and is connected to the copper foil deflection correction horizontal plate, the two copper foil deflection correction rollers are arranged in parallel front and back, the two ends of the copper foil deflection correction rollers are respectively rotatably arranged on the inner sides of the two copper foil deflection correction vertical plates, the second copper foil deflection correction sensor is connected to the side of the copper foil deflection correction mounting frame close to the calendering mechanism, the second copper foil deflection correction driving component is used to drive the copper foil deflection correction horizontal plate to move left and right, thereby driving the two copper foil deflection correction vertical plates, the two copper foil deflection correction rollers and the second copper foil deflection correction sensor to move left and right, and the second copper foil deflection correction sensor is used to detect the position of the copper foil located between the second copper foil deflection correction mechanism and the calendering mechanism.

8. The dry film thinning composite equipment according to claim 7, characterized in that: The composite device also includes a rocker mechanism arranged between the copper foil unwinding mechanism and the second copper foil correcting mechanism, the rocker mechanism includes a rotating shaft, a rocker frame, a rocker roller and a rocker driving member, two rocker mounting holes are respectively provided on the inner walls at both ends of the rocker frame, the two ends of the rotating shaft are respectively rotatably arranged in the two rocker mounting holes, and one end of the rotating shaft extends out from the corresponding rocker mounting hole and is connected to the rocker driving member, the outer periphery of the rotating shaft is sleeved with two rocker mounting plates, the two rocker mounting plates are spaced apart along the axial direction of the rotating shaft, a rocker connecting block is provided between one ends of the two rocker mounting plates, the rocker roller is rotatably arranged between the other ends of the two rocker mounting plates, and the rocker driving member is used to drive the rotating shaft to rotate, thereby driving the two rocker mounting plates to rotate, and further driving the rocker connecting block and the rocker roller to rotate around the axis of the rotating shaft.

9. The dry film thinning composite equipment according to claim 8, characterized in that: The composite device further comprises a tension detection mechanism disposed between the swing lever mechanism and the second copper foil deviation correcting mechanism, wherein the tension detection mechanism comprises a tension detection roller.

10. The dry film thinning composite equipment according to claim 1, characterized in that: The composite device also includes a winding and correcting sensor and a winding and correcting mechanism, the winding and correcting sensor is used to detect the position of the dry-process electrode before the dry-process electrode is wound by the electrode winding mechanism, the winding and correcting mechanism includes a winding and correcting mounting plate, a first winding and correcting connecting block and a winding and correcting driving member, the first winding and correcting connecting block is located below the winding and correcting mounting plate, the winding and correcting mounting plate has a connecting hole, one end of the first winding and correcting connecting block is connected to the winding and correcting driving member, the other end of the first winding and correcting connecting block passes through the connecting hole and is provided with a second winding and correcting connecting block, the electrode winding mechanism is slidably arranged at the top end of the winding and correcting mounting plate and connected to the second winding and correcting connecting block, and the winding and correcting driving member is used to drive the first winding and correcting connecting block to move left and right, so that the electrode winding mechanism can be driven to move left and right through the second winding and correcting connecting block.

11. The dry film thinning composite equipment according to claim 1, characterized in that: The thinning device includes a thinning unwinding mechanism, multiple thinning mechanisms, a trimming mechanism and a thinning winding mechanism, which are arranged in sequence from front to back. The thinning unwinding mechanism is used to unwind a dry film sheet, and the multiple thinning mechanisms are used to sequentially thin the unwound dry film sheet to obtain a dry film sheet of required thickness. The trimming mechanism is used to trim the edges of both sides of the dry film sheet that has undergone the last thinning treatment to obtain a dry film sheet of required width, and the thinning winding mechanism is used to wind up the trimmed dry film sheet.

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