Six-roller dry electrode film forming equipment

Abstract

The utility model discloses six-roller dry electrode film forming equipment which comprises a mounting frame, and a first roller, a second roller, a third roller, a fourth roller, a fifth roller and a sixth roller which are rotatably arranged in the mounting frame, the first roller, the second roller, the third roller, the fourth roller, the fifth roller and the sixth roller are sequentially arranged in the length direction of the mounting frame, the top end and the bottom end of the mounting frame are open, a film forming gap is formed between the first roller and the second roller, and a first thinning gap is formed between the second roller and the third roller. A first thinning gap is formed between the first roller and the sixth roller, a second thinning gap is formed between the third roller and the fourth roller, a third thinning gap is formed between the fourth roller and the fifth roller, a composite gap is formed between the fifth roller and the sixth roller, and the widths of the film forming gap, the first thinning gap, the second thinning gap and the third thinning gap are sequentially reduced in the direction close to the composite gap. According to the utility model, the occupied space is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a six-roller dry electrode film forming device. Background Technology

[0002] Currently, the preparation of dry electrodes generally involves first feeding the mixed electrode powder into two horizontally opposed rollers of a film-forming device. The two rollers roll the electrode powder into an electrode film. The electrode film is then transferred to a thinning device, where two vertically opposed rollers roll the electrode film to achieve thinning. The thinned electrode film is then transferred to a laminating device, where two horizontally opposed rollers laminate the thinned electrode film onto a substrate, such as a current collector, thus completing the preparation of the dry electrode. However, this method requires three separate pieces of equipment for electrode film preparation, thinning, and lamination. Using three separate pieces of equipment occupies a large space, cannot operate continuously, increases production time, and reduces production efficiency. Furthermore, the thinning device cannot perform multiple consecutive thinning operations on the electrode film, failing to meet production requirements. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a six-roller dry electrode film forming device, which reduces space occupation, reduces production time, improves production efficiency, and meets production requirements.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A six-roll dry electrode film forming apparatus includes a mounting frame and a first roll, a second roll, a third roll, a fourth roll, a fifth roll, and a sixth roll rotatably disposed within the mounting frame. The first roll, second roll, third roll, fourth roll, fifth roll, and sixth roll are arranged sequentially along the length of the mounting frame. The top and bottom ends of the mounting frame are open. A film forming gap exists between the first roll and the second roll. A first thinning gap exists between the second roll and the third roll. A second thinning gap exists between the third roll and the fourth roll. A third thinning gap exists between the fourth roll and the fifth roll. It has a third thinning gap, and a composite gap between the fifth and sixth rolls. The widths of the film-forming gap, the first thinning gap, the second thinning gap, and the third thinning gap decrease sequentially along the direction close to the composite gap. One end of the first roll is connected to the first roll drive mechanism, one end of the second roll is connected to the second roll drive mechanism, one end of the third roll is connected to the third roll drive mechanism, one end of the fourth roll is connected to the fourth roll drive mechanism, one end of the fifth roll is connected to the fifth roll drive mechanism, and one end of the sixth roll is connected to the sixth roll drive mechanism.

[0006] The beneficial effects of this utility model are as follows: This utility model, through the arrangement of a first, second, third, fourth, fifth, and sixth roller, allows electrode powder to be rolled into an electrode film using the first and second rollers. The electrode film is then thinned sequentially using the second and third rollers, the third and fourth rollers, and the fourth and fifth rollers to achieve the desired thickness. Finally, the thinned electrode film is laminated onto one side of a substrate using the fifth and sixth rollers to obtain a dry electrode. Compared to existing technologies, the preparation, thinning, and lamination of the electrode film onto the substrate can be performed continuously on the same equipment, reducing space requirements, shortening production time, and improving production efficiency. Furthermore, the electrode film can be thinned multiple times consecutively, greatly satisfying production requirements. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 This is a schematic diagram of the structure of a six-roller dry electrode film forming device provided in an embodiment of the present invention from a first angle;

[0009] Figure 2 yes Figure 1 The diagram shows a second-angle structural schematic of the six-roller dry electrode film-forming equipment.

[0010] Figure 3 yes Figure 1 The diagram shows a front view of the six-roller dry electrode film forming equipment.

[0011] Figure 4 yes Figure 1 The above diagram shows the six-roll dry electrode film forming equipment after removing the first roll drive mechanism, the second roll drive mechanism, the third roll drive mechanism, the fourth roll drive mechanism, the fifth roll drive mechanism, and the sixth roll drive mechanism.

[0012] Figure 5 Figure 1 The diagram shown is a rear view of the six-roll dry electrode film forming equipment after removing the first, second, third, fourth, fifth, and sixth roll drive mechanisms.

[0013] Figure 6 yes Figure 1 A schematic diagram of the structure of the first roller, two first bearing seats, first rotary joint and first roller drive mechanism of the six-roll dry electrode film forming equipment shown;

[0014] Figure 7 yes Figure 1 A schematic diagram of the structure of the first adjusting component of the fourth roller gap adjusting mechanism, the first adjusting component of the fifth roller gap adjusting mechanism, the fourth bearing seat, the fifth bearing seat, and the first angle of the sixth bearing seat in the six-roller dry electrode film forming equipment shown.

[0015] Figure 8 yes Figure 7 A schematic diagram of the structure of the first adjusting component of the fourth roller gap adjusting mechanism, the first adjusting component of the fifth roller gap adjusting mechanism, the fourth bearing seat, the fifth bearing seat, and the first angle of the sixth bearing seat in the six-roller dry electrode film forming equipment shown.

[0016] Figure 9 yes Figure 7 The diagram shows the structure of the first adjustment component.

[0017] Figure 10 yes Figure 7 A schematic diagram of the structure of the first wedge block, the first wedge plate, and the fifth bearing seat of the first adjusting component of the fifth roll gap adjusting mechanism shown;

[0018] Figure 11 yes Figure 1 A schematic diagram of the structure of the second adjusting component of the first roller gap adjusting mechanism, the second adjusting component of the second roller gap adjusting mechanism, the first bearing seat, the second bearing seat, and the third bearing seat of the six-roller dry electrode film forming equipment shown;

[0019] Figure 12 yes Figure 11 The diagram shows the structure of the second adjustment component.

[0020] Figure 13 yes Figure 12 The diagram shows the structure of the second wedge block, the second wedge plate, and the first bearing seat of the second adjustment component of the first roll gap adjustment mechanism.

[0021] Figure label:

[0022] 10. Mounting bracket; 11. Mounting position; 12. Mounting bracket slide rail; 13. First roll slider; 14. Second roll slider; 15. Third roll slider; 16. Fourth roll slider; 17. Fifth roll slider; 181. First adjusting slide rail; 182. First adjusting slider; 191. Second adjusting slide rail; 192. Second adjusting slider;

[0023] 20. First roll; 21. First roll drive mechanism; 211. Roll motor; 212. Roll reducer; 213. Roll reducer base; 214. Roll coupling; 22. First bearing housing; 221. Bearing housing shell; 222. Bearing; 23. First rotary joint;

[0024] 30. Second roll; 31. Second roll drive mechanism; 32. Second bearing housing; 33. Second rotary joint;

[0025] 40. Third roll; 41. Third roll drive mechanism; 42. Third bearing housing; 43. Third rotary joint;

[0026] 50. Fourth roll; 51. Fourth roll drive mechanism; 52. Fourth bearing housing; 53. Fourth rotary joint;

[0027] 60. Fifth roll; 61. Fifth roll drive mechanism; 62. Fifth bearing housing; 63. Fifth rotary joint;

[0028] 70. Sixth roll; 71. Sixth roll drive mechanism; 72. Sixth bearing housing; 73. Sixth rotary joint;

[0029] 80. First pressure-applying drive component; 81. First pressure sensor;

[0030] 90. Second pressure-applying drive component; 91. Second pressure sensor;

[0031] 110. First adjusting assembly; 1101. First adjusting motor; 1102. First adjusting reducer; 1103. First adjusting seat; 1104. Adjusting reducer seat; 1105. Adjusting coupling; 1106. First lead screw; 11061. First lead screw bearing seat; 11062. Lead screw mounting seat; 1107. First nut; 1108. First wedge block; 11081. First protrusion; 11082. First protective plate; 11083. First notch; 1109. First wedge plate; 11091. First wedge plate inclined surface; 11092. Second protrusion;

[0032] 120. Second adjusting assembly; 1201. Second adjusting motor; 1202. Second adjusting reducer; 1203. Second adjusting seat; 12041. First coupling; 12042. Second coupling; 1205. Connecting rod; 1206. Second lead screw; 12061. Second lead screw bearing seat; 12062. Third lead screw bearing seat; 1207. Second nut; 1208. Second wedge block; 12081. Third protrusion; 12082. Second protective plate; 12083. Second notch; 1209. Second wedge plate; 12901. Inclined surface of second wedge block; 12092. Fourth protrusion. Detailed Implementation

[0033] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0034] Please refer to Figures 1 to 5 An embodiment of this utility model provides a six-roll dry electrode film forming device, including a mounting frame 10 and a first roll 20, a second roll 30, a third roll 40, a fourth roll 50, a fifth roll 60 and a sixth roll 70 rotatably disposed within the mounting frame 10.

[0035] The mounting frame 10 has openings at both its top and bottom. The first roll 20, second roll 30, third roll 40, fourth roll 50, fifth roll 60, and sixth roll 70 are arranged sequentially from left to right along the length of the mounting frame 10. A film-forming gap exists between the first roll 20 and the second roll 30; a first thinning gap exists between the second roll 30 and the third roll 40; a second thinning gap exists between the third roll 40 and the fourth roll 50; a third thinning gap exists between the fourth roll 50 and the fifth roll 60; and a composite gap exists between the fifth roll 60 and the sixth roll 70. The widths of the film-forming gap, the first thinning gap, the second thinning gap, and the third thinning gap decrease sequentially towards the composite gap. One end of the first roll 20 is connected to a first roll drive mechanism 21, which drives the first roll 20 to rotate. One end of the second roll 30 is connected to a second roll drive mechanism 31, which drives the second roll 30 to rotate. One end of the third roll 40 is connected to the third roll drive mechanism 41, which drives the third roll 40 to rotate. One end of the fourth roll 50 is connected to the fourth roll drive mechanism 51, which drives the fourth roll 50 to rotate. One end of the fifth roll 60 is connected to the fifth roll drive mechanism 61, which drives the fifth roll 50 to rotate. One end of the sixth roll 70 is connected to the sixth roll drive mechanism 71, which drives the sixth roll 70 to rotate. In practical applications, the first roll 20 and the second roll 30 rotate in opposite directions; the second roll 30 and the third roll 40 rotate in opposite directions; the third roll 40 and the fourth roll 50 rotate in opposite directions; the fourth roll 50 and the fifth roll 60 rotate in opposite directions; and the fifth roll 60 and the sixth roll 70 rotate in opposite directions.

[0036] In practical application, the electrode powder is first fed into the film-forming gap through the opening at the top of the mounting frame 10. The first roller 20 and the second roller 30 rotate in opposite directions, thus rolling the electrode powder into an electrode film. The electrode film then passes under the second roller 30 and enters the first thinning gap. The second roller 30 and the third roller 40 rotate in opposite directions, thus rolling the electrode film, achieving the first thinning operation. The electrode film, after the first thinning operation, then passes over the third roller 40 and enters the second thinning gap. The third roller 40 and the fourth roller 50 rotate in opposite directions, thus rolling the electrode film, achieving the second thinning operation. After the second thinning operation, the electrode film passes under the fourth roll 50 and enters the third thinning gap. The fourth roll 50 and the fifth roll 60 rotate in opposite directions, thus rolling the electrode film. This completes the third thinning operation on the electrode film. Then, the electrode film after the third thinning operation passes over the fifth roll 60 and enters the composite gap. At the same time, the substrate unwound by the unwinding device enters the composite gap and is located to the right of the electrode film. The fifth roll 60 and the sixth roll 70 rotate in opposite directions, thus rolling the electrode film and the substrate. This achieves the bonding of the electrode film to one side of the substrate, thus obtaining a dry electrode. Afterward, the dry electrode comes out from the opening at the bottom of the mounting frame 10 and is wound up by the winding device.

[0037] This invention utilizes a set of first rollers 20, second rollers 30, third rollers 40, fourth rollers 50, fifth rollers 60, and sixth rollers 70. The first rollers 20 and second rollers 30 roll electrode powder into electrode films. The second rollers 30 and third rollers 40, third rollers 40 and fourth rollers 50, and fourth rollers 50 and fifth rollers 60 sequentially thin the electrode films to achieve the desired thickness. The fifth rollers 60 and sixth rollers 70 then laminate the thinned electrode films onto one side of a substrate, thus obtaining a dry electrode. Compared to existing technologies, the preparation, thinning, and lamination of the electrode films onto the substrate can be performed continuously on the same equipment, reducing space requirements, shortening production time, and improving production efficiency. Furthermore, the electrode films can be thinned multiple times consecutively, greatly satisfying production requirements.

[0038] In this embodiment, the diameters of the first roll 20, the second roll 30, the third roll 40, the fourth roll 50, the fifth roll 60, and the sixth roll 70 are all 200 mm. This roll diameter can reduce the electrode film to 100 micrometers.

[0039] The first roll 20, the second roll 30, the third roll 40, the fourth roll 50, the fifth roll 60, and the sixth roll 70 are all steel rolls. The other end of the first roll 20 is connected to a first rotary joint 23. The first roll 20 has a first oil passage connected to the first rotary joint 23. The other end of the second roll 30 is connected to a second rotary joint 33. The second roll 30 has a second oil passage connected to the second rotary joint 33. The other end of the third roll 40 is connected to a third rotary joint 43. The third roll 40 has a third oil passage connected to the third rotary joint 43. The other end of the fourth roll 50 is connected to a fourth rotary joint 53. The fourth roll 50 has a fourth oil passage connected to the fourth rotary joint 53. The other end of the fifth roll 60 is connected to a fifth rotary joint 63. The fifth roll 60 has a fifth oil passage connected to the fifth rotary joint 63. The other end of the sixth roll 70 is connected to a sixth rotary joint 73. The sixth roll 70 has a sixth oil passage connected to the sixth rotary joint 73. The sixth oil passage connected to the sixth rotary joint 73 allows for... Hot oil is introduced into the first oil passage, and then into the second oil passage through the second rotary joint 33, the third oil passage through the third rotary joint 43, the fourth oil passage through the fourth rotary joint 53, the fifth oil passage through the fifth rotary joint 63, and the sixth oil passage through the sixth rotary joint 73. This allows the electrode powder to be heated via the first roller 20 and the second roller 30, facilitating the rolling of the electrode powder into electrodes. The electrode film can be heated by the second roll 30 and the third roll 40 to facilitate the first thinning operation of the electrode film. The electrode film can be heated by the third roll 40 and the fourth roll 50 to facilitate the second thinning operation of the electrode film. The electrode film can be heated by the fourth roll 50 and the fifth roll 60 to facilitate the third thinning operation of the electrode film. The electrode film and the substrate can be heated by the fifth roll 60 and the sixth roll to facilitate the lamination of the electrode film onto one side of the substrate.

[0040] Two first bearing seats 22 are rotatably fitted at both ends of the first roll 20, and the two first bearing seats 22 are arranged front to back facing each other. Two second bearing seats 32 are rotatably fitted at both ends of the second roll 30, and the two second bearing seats 32 are arranged front to back facing each other. Two third bearing seats 42 are rotatably fitted at both ends of the third roll 40, and the two third bearing seats 42 are arranged front to back facing each other. Two fourth bearing seats 52 are rotatably fitted at both ends of the fourth roll 50, and the two fourth bearing seats 52 are arranged front to back facing each other. Two fifth bearing seats 62 are rotatably fitted at both ends of the fifth roll 60, and the two fifth bearing seats 62 are arranged front to back facing each other. Two sixth bearing seats 72 are rotatably fitted at both ends of the sixth roll 70, and the two sixth bearing seats 72 are arranged front to back facing each other. The mounting frame 10 has two mounting positions 11 on each side, both of which are connected to the interior of the mounting frame 10. Two first bearing seats 22, two second bearing seats 32, two third bearing seats 42, two fourth bearing seats 52, and two sixth bearing seats 72 are slidably disposed within the two mounting positions 11. Two fifth bearing seats 62 are fixedly disposed within the two mounting positions 11. Specifically, the top end of the fifth bearing seat 62 is fixedly disposed at the top of the corresponding mounting position 11, and the bottom end of the fifth bearing seat 62 is fixedly disposed at the bottom of the corresponding mounting position 11. Two first pressure-applying drive components 80 are respectively disposed on the inner wall of one end of each of the two mounting positions 11, and two second pressure-applying drive components 90 are respectively disposed on the inner wall of the other end of each of the two mounting positions 11. The output ends of the two first pressure-applying drive components 80 are respectively connected to the ends of the two first bearing seats 22 furthest from the second roll 30, and the output ends of the two second pressure-applying drive components 90 are respectively connected to the ends of the two sixth bearing seats 72 furthest from the fifth roll 60. Two first pressure-applying drive components 80 are used to drive two first bearing seats 22 to move left and right along the length direction of the mounting frame 10, thereby driving the first roll 20 to move left and right along the length direction of the mounting frame 10. In actual application, the two first pressure-applying drive components 80 drive the first roll 20 to move to the right along the length direction of the mounting frame 10, thereby applying pressure to the right through the first roll 20. This pressure can be applied to the second roll 30, the third roll 40, the fourth roll 50 and the fifth roll 60 in sequence. In this way, the first roll 20 and the second roll 30 can realize the rolling of electrode powder into electrode films and the thinning operation of the electrode films by the second roll 30 and the third roll 40, the third roll 40 and the fourth roll 50, and the fourth roll 50 and the fifth roll 60 respectively.Two second pressure-applying drive members 90 are used to drive two sixth bearing seats 72 to move left and right along the length of the mounting frame 10, thereby driving the sixth roll 70 to move left and right along the length of the mounting frame 10. In actual application, the two second pressure-applying drive members 90 drive the sixth roll 70 to move to the left along the length of the mounting frame 10, thereby applying pressure to the left through the sixth roll 70. This pressure can act on the fifth roll 60, so that the electrode film can be laminated onto one side of the substrate through the fifth roll 60 and the sixth roll 70.

[0041] Two first bearing seats 22, two second bearing seats 32, two third bearing seats 42, two fourth bearing seats 52, and two sixth bearing seats 72 are slidably disposed within two mounting positions 11. Specifically, the bottom and top of each mounting position 11 are provided with two mounting frame slide rails 12 extending along the length direction of the mounting frame 10. A first roll slider 13, a second roll slider 14, a third roll slider 15, a fourth roll slider 16, and a fifth roll slider 17 are slidably fitted onto the mounting frame slide rails 12 from left to right along the length direction of the mounting frame 10. The first roller slider 13 is respectively set at the top and bottom of the corresponding first bearing seat 22, the second roller slider 14 of the two mounting bracket slide rails 12 is respectively set at the top and bottom of the corresponding second bearing seat 32, the third roller slider 15 of the two mounting bracket slide rails 12 is respectively set at the top and bottom of the corresponding third bearing seat 42, the fourth roller slider 16 of the two mounting bracket slide rails 12 is respectively set at the top and bottom of the corresponding fourth bearing seat 52, and the fifth roller slider 17 of the two mounting bracket slide rails 12 is respectively set at the top and bottom of the corresponding sixth bearing seat 72.

[0042] In this embodiment, both the first pressure driving component 80 and the second pressure driving component 90 are hydraulic cylinders. The hydraulic cylinder is preferably a plunger-type hydraulic cylinder. Using a plunger-type hydraulic cylinder can provide a stable output force, thereby reducing the jump of the roll.

[0043] Furthermore, each of the two first pressure-applying drive units 80 has two first pressure sensors 81 at its output end. The two first pressure sensors 81 are connected to the ends of the two first bearing seats 22 furthest from the second roll 30. Similarly, each of the two second pressure-applying drive units 90 has two second pressure sensors 91 at its output end. The two second pressure sensors 91 are connected to the ends of the two sixth bearing seats 72 furthest from the fifth roll 60. The two first pressure sensors 81 detect the pressure applied to the right, and the two second pressure sensors 91 detect the pressure applied to the left. Based on the pressure detected by the two first pressure sensors 81, the output force of the two first pressure-applying drive units 80 can be adjusted. Similarly, based on the pressure detected by the two second pressure sensors 91, the output force of the two second pressure-applying drive units 90 can be adjusted. This allows for the preparation of dry electrodes made of different materials, resulting in a wide range of applications.

[0044] The first roll drive mechanism 21 is disposed on the outside of one of the first bearing seats 22, for example, the first bearing seat 22 located at the rear. The second roll drive mechanism 31 is disposed on the outside of one of the second bearing seats 32, for example, the second bearing seat 32 located at the rear. The third roll drive mechanism 41 is disposed on the outside of one of the third bearing seats 42, for example, the third bearing seat 42 located at the rear. The fourth roll drive mechanism 51 is disposed on the outside of one of the fourth bearing seats 52, for example, the fourth bearing seat 52 located at the rear. The fifth roll drive mechanism 61 is disposed on the outside of one of the fifth bearing seats 62, for example, the fifth bearing seat 62 located at the rear. The sixth roll drive mechanism 71 is disposed on the outside of one of the sixth bearing seats 72, for example, the sixth bearing seat 72 located at the rear. This arrangement allows the first roll drive mechanism 21 to move left and right with the corresponding first bearing seat 22 and first roll 20; the second roll drive mechanism 31 to move left and right with the corresponding second bearing seat 32 and second roll 30; the third roll drive mechanism 41 to move left and right with the corresponding third bearing seat 42 and third roll 40; the fourth roll drive mechanism 51 to move left and right with the corresponding fourth bearing seat 52 and fourth roll 50; and the sixth roll drive mechanism 71 to move left and right with the corresponding sixth bearing seat 72 and sixth roll 70. This reduces power loss and roll vibration, thereby reducing wavy patterns on the electrode diaphragm and improving the quality of the dry electrode. In this invention, the outer side refers to the side away from the center of the mounting frame 10, and the inner side refers to the side closer to the center of the mounting frame 10.

[0045] Combination Figure 6As shown, the first roll drive mechanism 21, the second roll drive mechanism 31, the third roll drive mechanism 41, the fourth roll drive mechanism 51, the fifth roll drive mechanism 61, and the sixth roll drive mechanism 71 all include a roll motor 211, a roll reducer 212, and a roll coupling 214. The roll motor 211 is mounted on the roll reducer 212, and the output end of the roll motor 211 is connected to the input end of the roll reducer 212. The roll reducer 212 of the first roll drive mechanism 21 is mounted on one of the first bearing seats 22, for example, on the outside of the rearmost first bearing seat 22, via a roll reducer base 213, and the output end of the roll reducer 213 is connected to one end of the first roll 20 via the roll coupling 214. The roll reducer 212 of the second roll drive mechanism 31 is mounted on the outside of one of the second bearing seats 32, for example, the rearmost second bearing seat 32, via a roll reducer base 213, and the output end of the roll reducer 212 is connected to one end of the second roll 30 via a roll coupling 214. The roll reducer 212 of the third roll drive mechanism 41 is mounted on the outside of one of the third bearing seats 42, for example, the rearmost third bearing seat 42, via a roll reducer base 213, and the output end of the roll reducer 212 is connected to one end of the third roll 40 via a roll coupling 214. The roll reducer 212 of the fourth roll drive mechanism 51 is mounted on the outside of one of the fourth bearing seats 52, for example, the rearmost fourth bearing seat 52, via a roll reducer base 213, and the output end of the roll reducer 212 is connected to one end of the fourth roll 50 via a roll coupling 214. The roll reducer 212 of the fifth roll drive mechanism 61 is mounted on the outside of one of the fifth bearing seats 62, for example, the rearmost fifth bearing seat 62, via a roll reducer base 213, and the output end of the roll reducer 212 is connected to one end of the fifth roll 60 via a roll coupling 214. The roll reducer 212 of the sixth roll drive mechanism 71 is mounted on the outside of one of the sixth bearing seats 72, for example, the rearmost sixth bearing seat 72, and the output end of the roll reducer 212 is connected to one end of the sixth roll 70 via a roll coupling 214. The roll motor 211 is used to drive the corresponding roll to rotate via the roll reducer 212.

[0046] The roll motor 211 is preferably a servo motor, the roll reducer 212 is preferably a planetary reducer, and the roll coupling 214 is preferably a single diaphragm coupling. The servo motor, planetary reducer, and single diaphragm coupling have high precision and can output torque up to 4000 N (Newtons), which can reduce the vibration of the corresponding rolls.

[0047] The first bearing housing 22, the second bearing housing 32, the third bearing housing 42, the fourth bearing housing 52, the fifth bearing housing 62, and the sixth bearing housing 72 all include a bearing housing shell 221 and a bearing 222. The bearing housing shell 221 has a through hole, and the bearing 222 is disposed in the through hole. The bearing 222 is a back-to-back tapered roller bearing. The bearings 222 of the two first bearing housings 22 are respectively sleeved at both ends of the first roll 20, the bearings 222 of the two second bearing housings 32 are respectively sleeved at both ends of the second roll 30, the bearings 222 of the two third bearing housings 42 are respectively sleeved at both ends of the third roll 40, the bearings 222 of the two fourth bearing housings 52 are respectively sleeved at both ends of the fourth roll 50, the bearings 222 of the two fifth bearing housings 62 are respectively sleeved at both ends of the fifth roll 60, and the bearings 222 of the two sixth bearing housings 72 are respectively sleeved at both ends of the sixth roll 70. The use of back-to-back tapered roller bearings can reduce the vibration of the corresponding rolls.

[0048] Furthermore, a first roll gap adjustment mechanism is provided between the first roll 20 and the second roll 30 to adjust the width of the film-forming gap. A second roll gap adjustment mechanism is provided between the second roll 30 and the third roll 40 to adjust the width of the first thinning gap. A third roll gap adjustment mechanism is provided between the third roll 40 and the fourth roll 50 to adjust the width of the second thinning gap. A fourth roll gap adjustment mechanism is provided between the fourth roll 50 and the fifth roll 60 to adjust the width of the third thinning gap. A fifth roll gap adjustment mechanism is provided between the fifth roll 60 and the sixth roll 70 to adjust the width of the composite gap. By adjusting the widths of the film-forming gap, the first thinning gap, the second thinning gap, the third thinning gap, and the composite gap, it is possible to adapt to the preparation of dry electrodes of different thicknesses, thus having a wide range of applications.

[0049] The first, second, third, fourth, and fifth roll gap adjustment mechanisms all include a first adjustment component 110 and a second adjustment component 120. The second adjustment component 120 of the first roll gap adjustment mechanism is disposed between one of the first bearing seats 22 (e.g., a rearward-located first bearing seat 22) and one of the second bearing seats 32 (e.g., a rearward-located second bearing seat 32). The first adjustment component 110 is disposed between another first bearing seat 22 (e.g., a forward-located first bearing seat 22) and another second bearing seat 32 (e.g., a forward-located second bearing seat 32). The second adjustment component 120 of the second roll gap adjustment mechanism is disposed between one of the second bearing seats 32 (e.g., a rearward-located second bearing seat 32) and one of the third bearing seats 42 (e.g., a rearward-located third bearing seat 42). The first adjustment component 110 is disposed between another second bearing seat 32 (e.g., a forward-located second bearing seat 32) and another third bearing seat 42 (e.g., a forward-located third bearing seat 42). The second adjusting component 120 of the third roll gap adjusting mechanism is disposed between one of the third bearing seats 42 (e.g., the rearmost third bearing seat 42) and one of the fourth bearing seats 52 (e.g., the rearmost fourth bearing seat 52). The first adjusting component 110 is disposed between another third bearing seat 42 (e.g., the frontmost third bearing seat 42) and another fourth bearing seat 52 (e.g., the frontmost fourth bearing seat 52). The second adjusting component 120 of the fourth roll gap adjusting mechanism is disposed between one of the fourth bearing seats 52 (e.g., the rearmost fourth bearing seat 52) ​​and one of the fifth bearing seats 62 (e.g., the rearmost fifth bearing seat 62). The first adjusting component 110 is disposed between another fourth bearing seat 52 (e.g., the frontmost fourth bearing seat 52) ​​and another fifth bearing seat 62 (e.g., the frontmost fifth bearing seat 62). The second adjustment component 120 of the fifth roll gap adjustment mechanism is disposed between one of the fifth bearing seats 62, for example, the fifth bearing seat 62 located at the rear, and one of the sixth bearing seats 72, for example, the sixth bearing seat 72 located at the rear; the first adjustment component 110 is disposed between another fifth bearing seat 62, for example, the fifth bearing seat 62 located at the front, and another sixth bearing seat 72, for example, the sixth bearing seat 72 located at the front.

[0050] Specifically, in combination Figures 7 to 10As shown, the first adjustment assembly 110 includes a first adjustment motor 1101, a first adjustment reducer 1102, a first lead screw 1106, a first nut 1107, a first wedge block 1108, and a first wedge plate 1109. The first adjusting motor 1101 is mounted on the first adjusting reducer 1102. The output end of the first adjusting motor 1101 is connected to the input end of the first adjusting reducer 1102. The first adjusting reducer 1102 is slidably mounted on one side of the mounting frame 10. In this embodiment, the first adjusting reducer 1102 is mounted on one side of the first adjusting seat 1103 via the adjusting reducer base 1104. The first adjusting seat 1103 is slidably mounted on one side of the mounting frame 10. Specifically, one side of the mounting frame 10 is provided with two first adjusting slide rails 181 that are arranged vertically and parallel to the first adjusting seat 1103. The length direction of the first adjusting slide rails 181 is the same as the length direction of the mounting frame 10. The other side of the first adjusting seat 1103 is provided with two first adjusting sliders 182. The two first adjusting sliders 182 are slidably engaged with the two first adjusting slide rails 181 respectively.

[0051] One end of the first lead screw 1106 is connected to the output end of the first adjusting reducer 1102 via the adjusting coupling 1105. The other end of the first lead screw 1106 of the first roll gap adjusting mechanism extends between the corresponding first bearing seat 22 and the second bearing seat 32 and is rotatably connected to the corresponding second bearing seat 32. The other end of the first lead screw 1106 of the second roll gap adjusting mechanism extends between the corresponding second bearing seat 32 and the third bearing seat 42 and is rotatably connected to the corresponding third bearing seat 42. The other end of the first lead screw 1106 of the third roll gap adjusting mechanism extends between the corresponding third bearing seat 42 and the fourth bearing seat 52 and is rotatably connected to the corresponding fourth bearing seat 52. The other end of the first lead screw 1106 of the fourth roll gap adjusting mechanism extends between the corresponding fourth bearing seat 52 and the fifth bearing seat 62 and is rotatably connected to the corresponding fifth bearing seat 62. The other end of the first lead screw 1106 of the fifth roll gap adjusting mechanism extends between the corresponding fifth bearing seat 62 and the sixth bearing seat 72 and is rotatably connected to the corresponding sixth bearing seat 72.

[0052] In this embodiment, the other end of the first lead screw 1106 is rotatably mounted on the first lead screw bearing seat 11061. The first lead screw bearing seat 11061 is connected to the U-shaped lead screw mounting seat 11062. The lead screw mounting seat 11062 of the first roll gap adjustment mechanism is connected to the inner side of the corresponding second bearing seat 32. The lead screw mounting seat 11062 of the second roll gap adjustment mechanism is connected to the inner side of the corresponding third bearing seat 42. The lead screw mounting seat 11062 of the third roll gap adjustment mechanism is connected to the inner side of the corresponding fourth bearing seat 52. The lead screw mounting seat 11062 of the fourth roll gap adjustment mechanism is connected to the inner side of the corresponding fifth bearing seat 62. The lead screw mounting seat 11062 of the fifth roll gap adjustment mechanism is connected to the inner side of the corresponding sixth bearing seat 72.

[0053] The first nut 1107 is threadedly engaged with the first lead screw 1106, and the first wedge block 1108 has a first through hole. The first wedge block 1108 is sleeved on the outer periphery of the first nut 1107 through the first through hole. The first wedge-shaped block inclined surface of the first wedge block 1108 cooperates with the first wedge-shaped plate inclined surface 11091 of the first wedge plate 1109. Both the first wedge-shaped block inclined surface and the first wedge-shaped plate inclined surface 11091 are inclined from back to front and to the right. The first wedge plate 1109 of the first roll gap adjustment mechanism is set at the end of the corresponding first bearing seat 22 near the second roll 30. The first wedge plate 1109 of the second roll gap adjustment mechanism is set at the end of the corresponding second bearing seat 32 near the third roll 40. The first wedge plate 1109 of the third roll gap adjustment mechanism is set at the end of the corresponding third bearing seat 42 near the fourth roll 50. The first wedge plate 1109 of the fourth roll gap adjustment mechanism is set at the end of the corresponding fourth bearing seat 52 near the fifth roll 60. The first wedge plate 1109 of the fifth roll gap adjustment mechanism is set at the end of the corresponding fifth bearing seat 62 near the sixth roll 70. The first adjusting motor 1101 is used to drive the first lead screw 1106 to rotate through the first adjusting reducer 1102, thereby driving the first wedge block 1108 to move back and forth through the first nut 1107.

[0054] In this embodiment, a first protrusion 11081 is formed at one end of the first wedge block 1108 near the first wedge plate 1109. The end of the first protrusion 11081 near the first wedge plate 1109 has the aforementioned first wedge block inclined surface. A second protrusion 11092 corresponding to the first protrusion 11081 is formed at one end of the first wedge plate 11099 near the first wedge block 1108. The end of the second protrusion 11092 near the first wedge block 1108 has the aforementioned first wedge plate inclined surface 11091. There are two first protrusions 11081, arranged vertically at intervals. The number of second protrusions 11092 corresponds to the number of first protrusions 11081, also being two. Understandably, the number of first protrusions 11081 and second protrusions 11092 can be set according to actual conditions. The first protrusion 11081 has several grooves arranged at intervals from top to bottom on the end near the first wedge plate 1109.

[0055] The first wedge block 1108 has two first protective plates 11082 at its top and bottom. A first notch 11083 is provided on the side of each first protective plate 11082 that is close to the other. The bottom of the first notch 11083 of the first protective plate 11082 at the top of the first wedge block 1108 mates with the top of the first wedge plate 1109. The bottom of the first protective plate 11082 at the bottom of the first wedge block 1108 mates with the bottom of the first wedge plate 1109. The two first protective plates 11082 provide protection for the first wedge block 1108.

[0056] Combination Figures 11 to 13 As shown, the second adjustment assembly 120 includes a second adjustment motor 1201, a second adjustment reducer 1202, a connecting rod 1205, a second lead screw 1206, a second nut 1207, a second wedge block 1208, and a second wedge plate 1209. The second adjusting motor 1201 is mounted on the second adjusting reducer 1202. The output end of the second adjusting motor 1201 is connected to the input end of the second adjusting reducer 1202. The second adjusting reducer 1202 is slidably mounted on the top of the mounting frame 10. In this embodiment, the second adjusting reducer 1202 is mounted on the second adjusting seat 1203. The second adjusting seat 1203 is slidably mounted on the top of the mounting frame 10. Specifically, the top of the mounting frame 10 is provided with two second adjusting slide rails 191 that are parallel to each other and correspond to the second adjusting seat 1203. The length direction of the second adjusting slide rails 191 is the same as the length direction of the mounting frame 10. The bottom end of the second adjusting seat 1203 is provided with two second adjusting sliders 192. The two second adjusting sliders 192 are slidably engaged with the two second adjusting slide rails 191 respectively.

[0057] The connecting rod 1205 passes through the through hole at the top of the mounting frame 10 and can move left and right within the through hole at the top of the mounting frame 10. The second lead screw 1206 of the first roll gap adjustment mechanism is located between the corresponding first bearing seat 22 and the second bearing seat 32 and is rotatably connected to the corresponding second bearing seat 32. The second lead screw 1206 of the second roll gap adjustment mechanism is located between the corresponding second bearing seat 32 and the third bearing seat 42 and is rotatably connected to the corresponding third bearing seat 42. The second lead screw 1206 of the third roll gap adjustment mechanism is located between the corresponding third bearing seat 42 and the fourth bearing seat 52 and is rotatably connected to the corresponding fourth bearing seat 52. The second lead screw 1206 of the fourth roll gap adjustment mechanism is located between the corresponding fourth bearing seat 52 and the fifth bearing seat 62 and is rotatably connected to the corresponding fifth bearing seat 62. The second lead screw 1206 of the fifth roll gap adjustment mechanism is located between the corresponding fifth bearing seat 62 and the sixth bearing seat 72 and is rotatably connected to the corresponding sixth bearing seat 72. One end of the connecting rod 1206 is connected to the output end of the second adjusting reducer 1202 via the first coupling 12041, and the other end of the connecting rod 1206 is connected to one end of the second lead screw 1206 via the second coupling 12042.

[0058] In this embodiment, a second lead screw bearing seat 12061 and a third lead screw bearing seat 12062 are sleeved on the outer periphery of the second lead screw 1206. The second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 are arranged vertically opposite each other. The second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 of the first roll gap adjustment mechanism are both connected to the end of the corresponding second bearing seat 32 near the first roll 20. The second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 of the second roll gap adjustment mechanism are both connected to the end of the corresponding third bearing seat 42 near the second roll 20. One end of the roller 30 is connected to the second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 of the third roll gap adjustment mechanism, which are both connected to the end of the corresponding fourth bearing seat 52 near the third roll 40. The second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 of the fourth roll gap adjustment mechanism are both connected to the end of the corresponding fifth bearing seat 62 near the fourth roll 50. The second lead screw bearing seat 12061 and the third lead screw bearing seat 12062 of the fifth roll gap adjustment mechanism are both connected to the end of the corresponding sixth bearing seat 72 near the fifth roll 60.

[0059] The second nut 1207 is located between the second lead screw bearing housing 12061 and the third lead screw bearing housing 12062, and the second nut 1207 is threadedly engaged with the second lead screw 1206. The second wedge block 1208 has a second through hole, and the second wedge block 1208 is sleeved on the outer periphery of the second nut 1207 through the second through hole. The second wedge-shaped block 1208's inclined surface cooperates with the second wedge-shaped plate 12091's inclined surface 12091 of the second wedge-shaped plate 1209. Both the second wedge-shaped block inclined surface and the second wedge-shaped plate inclined surface 12091 are inclined to the right from bottom to top. The second wedge-shaped plate 1209 of the first roll gap adjustment mechanism is located at the end of the corresponding first bearing seat 22 near the second roll 30. The second wedge-shaped plate 1209 of the second roll gap adjustment mechanism is located at the end of the corresponding second bearing seat 32 near the third roll 40. The second wedge-shaped plate 1209 of the third roll gap adjustment mechanism is located at the end of the corresponding third bearing seat 42 near the fourth roll 50. The second wedge-shaped plate 1209 of the fourth roll gap adjustment mechanism is located at the end of the corresponding fourth bearing seat 52 near the fifth roll 60. The second wedge-shaped plate 1209 of the fifth roll gap adjustment mechanism is located at the end of the corresponding fifth bearing seat 62 near the sixth roll 70. The second adjusting motor 1201 is used to drive the connecting rod 1205 to rotate through the second adjusting reducer 1202, thereby driving the second lead screw 1206 to rotate, and then driving the second wedge block 1208 to move up and down through the second nut 1207.

[0060] In this embodiment, a third protrusion 12081 is formed at one end of the second wedge block 1208 near the second wedge plate 1209. The end of the third protrusion 12081 near the second wedge plate 1209 has the aforementioned second wedge block inclined surface. A fourth protrusion 12092 corresponding to the third protrusion 12081 is formed at one end of the second wedge plate 1209 near the second wedge block 1208. The end of the fourth protrusion 12092 near the second wedge block 1208 has the aforementioned second wedge plate inclined surface 12091. There are two third protrusions 12081, spaced apart from each other. The number of fourth protrusions 12092 corresponds to the number of third protrusions 12081, also being two. It can be understood that the number of third protrusions 12081 and fourth protrusions 12092 can be set according to actual conditions. The third protrusion 12081 has several grooves arranged sequentially from front to back at intervals on the end near the second wedge plate 1209.

[0061] Two second protective plates 12082 are respectively provided at one end of the second wedge block 1208 near the center of the mounting bracket 10 and at the other end away from the center of the mounting bracket 10. A second notch 12083 is provided on the side of the two second protective plates 12082 that are close to each other. The bottom of the second notch 12083 of the second protective plate 12082 near the center of the mounting bracket 10 mates with the end of the second wedge plate 1209 near the center of the mounting bracket 10. The bottom of the second notch 12083 of the second protective plate 12082 away from the center of the mounting bracket 10 mates with the end of the second wedge plate 1209 away from the center of the mounting bracket 10. The two second protective plates 12082 provide protection for the second wedge block 1208.

[0062] In practical applications, when it is necessary to increase the width of the film-forming gap, the first adjustment component 110 and the second adjustment component 120 of the first roll gap adjustment mechanism operate as follows: the first adjustment motor 1101 of the first roll gap adjustment mechanism drives the first wedge block 1108 to move forward, and the second adjustment motor 1201 of the first roll gap adjustment mechanism drives the second wedge block 1208 to move upward. Under the combined action of the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091, and under the combined action of the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091, the first wedge plate 1109 and the second wedge plate 1209 of the first roll gap adjustment mechanism can drive the two first bearing seats 22 to move to the left. The leftward movement of the two first bearing seats 22 can drive the output ends of the two first pressure driving components 80 to retract and the first roller 20 to move to the left, thus increasing the width of the film-forming gap. When the width of the film-forming gap needs to be reduced, the first adjusting motor 1101 of the first roll gap adjusting mechanism drives the first wedge block 1108 to move backward, and the second adjusting motor 1201 of the first roll gap adjusting mechanism drives the second wedge block 1109 to move downward. At this time, the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 separate, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 separate. Then, the two first pressure driving components 80 drive the two first bearing seats 22 to move to the right, thereby driving the first roller 20 to move to the right until the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 of the first roll gap adjusting mechanism are engaged, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 of the first roll gap adjusting mechanism are engaged. In this way, the width of the film-forming gap is reduced.

[0063] When it is necessary to increase the width of the first thinning gap, the first adjusting component 110 and the second adjusting component 120 of the second roll gap adjusting mechanism are activated: the first adjusting motor 1101 of the second roll gap adjusting mechanism drives the first wedge block 1108 to move forward, and the second adjusting motor 1201 of the second roll gap adjusting mechanism drives the second wedge block 1208 to move upward. Under the combined action of the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091, and under the combined action of the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091, the second roll gap is adjusted. The first wedge plate 1109 and the second wedge plate 1209 of the mechanism can drive the two second bearing seats 32 to move to the left, thereby driving the second roll 30 to move to the left. In this way, the width of the first thinning gap is increased. During this process, the leftward movement of the two second bearing seats 32 can drive the first adjusting component 110 and the second adjusting component 120 of the corresponding first roll gap adjusting mechanism, as well as the two first bearing seats 22, to move to the left. The leftward movement of the two first bearing seats 22 can drive the first roll 20 to move to the left and the output ends of the two first pressure driving components 80 to retract. When the width of the first thinning gap needs to be reduced, the first adjusting motor 1101 of the second roll gap adjusting mechanism drives the first wedge block 1108 to move backward, and the second adjusting motor 1201 of the second roll gap adjusting mechanism drives the second wedge block 1208 to move downward. At this time, the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 separate, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 separate. Then, the two first pressure driving components 80 drive the two first bearing seats 22 to move to the right, thereby driving the first roll 20, the first adjusting component 110 and the second adjusting component 120 of the first roll gap adjusting mechanism, and the two second bearing seats 32 to move to the right until the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 of the second roll gap adjusting mechanism are engaged, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 of the second roll gap adjusting mechanism are engaged. In this way, the width of the first thinning gap is reduced. The adjustment steps for the widths of the second and third thinning gaps can refer to the adjustment steps for the width of the first thinning gap, and will not be repeated here.

[0064] When it is necessary to increase the width of the composite gap, the first adjusting component 110 and the second adjusting component 120 of the fifth roll gap adjusting mechanism are activated: the first adjusting motor 1101 of the fifth roll gap adjusting mechanism drives the first wedge block 1108 to move forward, and the second adjusting motor 1101 of the fifth roll gap adjusting mechanism drives the second wedge block 1208 to move upward. Under the action of the first wedge block inclined surface and the first wedge plate inclined surface 11091, and under the action of the second wedge block inclined surface and the second wedge plate inclined surface 12091, the first adjusting component 110 and the second adjusting component 120 of the fifth roll gap adjusting mechanism can move to the right. This can drive the two sixth bearing seats 72 to move to the right. The rightward movement of the two sixth bearing seats 72 can drive the output ends of the two second pressure driving components 90 to retract and the sixth roll 70 to move to the right. In this way, the width of the composite gap is increased. When the width of the composite gap needs to be reduced, the first adjusting motor 1101 of the fifth roll gap adjusting mechanism drives the first wedge block 1108 to move backward, and the second adjusting motor 1201 of the fifth roll gap adjusting mechanism drives the second wedge block 1208 to move downward. At this time, the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 separate, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 separate. Then, the two second pressure driving components 90 drive the two sixth bearing seats 72 to move to the left, thereby driving the sixth roll 70, the first adjusting component 110 and the second adjusting component 120 of the fifth roll gap adjusting mechanism to move to the left, until the inclined surface of the first wedge block and the inclined surface of the first wedge plate 11091 of the fifth roll gap adjusting mechanism are engaged, and the inclined surface of the second wedge block and the inclined surface of the second wedge plate 12091 of the fifth roll gap adjusting mechanism are engaged. In this way, the width of the composite gap is reduced.

[0065] Both the first adjusting motor 1101 and the second adjusting motor 1201 are preferably servo motors, both the first adjusting reducer 1102 and the second adjusting reducer 1202 are preferably planetary reducers, and both the adjusting coupling 1105, the first coupling 12041 and the second coupling 12042 are preferably single-diaphragm couplings. The servo motors, planetary reducers, and single-diaphragm couplings have high precision, thereby improving the accuracy of the corresponding gap width adjustment and ensuring the quality of the dry electrode.

[0066] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A six-roll dry electrode film forming apparatus characterized by, The application relates to a roll installation device, which comprises a mounting frame (10) and first, second, third, fourth, fifth and sixth rollers (20, 30, 40, 50, 60, 70) rotatably arranged in the mounting frame (10) and sequentially arranged along the length direction of the mounting frame (10), the top end and the bottom end of the mounting frame (10) are both open, the first roller (20) and the second roller (30) have a film forming gap therebetween, the second roller (30) and the third roller (40) have a first thinning gap therebetween, the third roller (40) and the fourth roller (50) have a second thinning gap therebetween, the fourth roller (50) and the fifth roller (60) have a third thinning gap therebetween, and the fifth roller (60) and the sixth roller (70) have a composite gap therebetween, the widths of the film forming gap, the first thinning gap, the second thinning gap and the third thinning gap sequentially decrease along the direction close to the composite gap, one end of the first roller (20) is connected with a first roller driving mechanism (21), one end of the second roller (30) is connected with a second roller driving mechanism (31), one end of the third roller (40) is connected with a third roller driving mechanism (41), one end of the fourth roller (50) is connected with a fourth roller driving mechanism (51), one end of the fifth roller (60) is connected with a fifth roller driving mechanism (61), and one end of the sixth roller (70) is connected with a sixth roller driving mechanism (71).

2. The six-roll dry electrode film forming apparatus according to claim 1, wherein Both ends of the first roller (20) are rotatably sleeved with two first bearing seats (22), both ends of the second roller (30) are rotatably sleeved with two second bearing seats (32), both ends of the third roller (40) are rotatably sleeved with two third bearing seats (42), both ends of the fourth roller (50) are rotatably sleeved with two fourth bearing seats (52), both ends of the fifth roller (60) are rotatably sleeved with two fifth bearing seats (62), both ends of the sixth roller (70) are rotatably sleeved with two sixth bearing seats (72), both sides of the mounting frame (10) are respectively provided with two mounting positions (11), both mounting positions (11) are in communication with the inside of the mounting frame (10), two first bearing seats (22), two second bearing seats (32), two third bearing seats (42), two fourth bearing seats (52) and two sixth bearing seats (72) are respectively slidably arranged in the two mounting positions (11), two fifth bearing seats (62) are respectively fixedly arranged in the two mounting positions (11), one end of the inner wall of the two mounting positions (11) is respectively provided with two first pressure driving members (80), the other end of the inner wall of the two mounting positions (11) is respectively provided with two second pressure driving members (90), the output end of the two first pressure driving members (80) is respectively connected with one end of the two first bearing seats (22) away from the second roller (30), the output end of the two second pressure driving members (90) is respectively connected with one end of the two sixth bearing seats (72) away from the fifth roller (60).

3. The six-roll dry electrode film forming apparatus according to claim 2, wherein The first roller driving mechanism (21) is arranged outside one of the first bearing seats (22), the second roller driving mechanism (31) is arranged outside one of the second bearing seats (32), the third roller driving mechanism (41) is arranged outside one of the third bearing seats (42), the fourth roller driving mechanism (51) is arranged outside one of the fourth bearing seats (52), the fifth roller driving mechanism (61) is arranged outside one of the fifth bearing seats (62), and the sixth roller driving mechanism (71) is arranged outside one of the sixth bearing seats (72).

4. The six-roll dry electrode film forming apparatus according to claim 3, wherein The first roller driving mechanism (21), the second roller driving mechanism (31), the third roller driving mechanism (41), the fourth roller driving mechanism (51), the fifth roller driving mechanism (61) and the sixth roller driving mechanism (71) all comprise a roller motor (211), a roller speed reducer (212) and a roller coupling (214), the roller motor (211) is arranged on the roller speed reducer (212), the output end of the roller motor (211) is connected with the input end of the roller speed reducer (212), the roller speed reducer (212) of the first roller driving mechanism (21) is arranged outside one of the first bearing seats (22), and the output end of the roller speed reducer (212) is connected with one end of the first roller (20) through the roller coupling (214), the roller speed reducer (212) of the second roller driving mechanism (31) is arranged outside one of the second bearing seats (32), and the output end of the roller speed reducer (212) is connected with one end of the second roller (30) through the roller coupling (214), the roller speed reducer (212) of the third roller driving mechanism (41) is arranged outside one of the third bearing seats (42), and the output end of the roller speed reducer (212) is connected with one end of the third roller (40) through the roller coupling (214), the roller speed reducer (212) of the fourth roller driving mechanism (51) is arranged outside one of the fourth bearing seats (52), and the output end of the roller speed reducer (212) is connected with one end of the fourth roller (50) through the roller coupling (214), the roller speed reducer (212) of the fifth roller driving mechanism (61) is arranged outside one of the fifth bearing seats (62), and the output end of the roller speed reducer (212) is connected with one end of the fifth roller (60) through the roller coupling (214), the roller speed reducer (212) of the sixth roller driving mechanism (71) is arranged outside one of the sixth bearing seats (72), and the output end of the roller speed reducer (212) is connected with one end of the sixth roller (70) through the roller coupling (214). The roller motor (211) is a servo motor, the roller speed reducer (212) is a planetary speed reducer, and the roller coupling (214) is a single diaphragm coupling.

5. The six-roll dry electrode film forming apparatus of claim 2, wherein, The first pressure applying driving member (80) and the second pressure applying driving member (90) are both hydraulic cylinders, and the hydraulic cylinders are plunger type hydraulic cylinders.

6. The six-roll dry electrode film forming apparatus of claim 2, wherein, The first roller (20) and the second roller (30) are provided with a first roller gap adjusting mechanism, the second roller (30) and the third roller (40) are provided with a second roller gap adjusting mechanism, the third roller (40) and the fourth roller (50) are provided with a third roller gap adjusting mechanism, the fourth roller (50) and the fifth roller (60) are provided with a fourth roller gap adjusting mechanism, and the fifth roller (60) and the sixth roller (70) are provided with a fifth roller gap adjusting mechanism, the first roller gap adjusting mechanism, the second roller gap adjusting mechanism, the third roller gap adjusting mechanism, the fourth roller gap adjusting mechanism and the fifth roller gap adjusting mechanism all include a first adjusting assembly (110) and a second adjusting assembly (120), the second adjusting assembly (120) of the first roller gap adjusting mechanism is arranged between one of the first bearing seats (22) and one of the second bearing seats (32), and the first adjusting assembly (110) is arranged between the other first bearing seat (22) and the other second bearing seat (32), the second adjusting assembly (120) of the second roller gap adjusting mechanism is arranged between one of the second bearing seats (32) and one of the third bearing seats (42), and the first adjusting assembly (110) is arranged between the other second bearing seat (32) and the other third bearing seat (42), the second adjusting assembly (120) of the third roller gap adjusting mechanism is arranged between one of the third bearing seats (42) and one of the fourth bearing seats (52), and the first adjusting assembly (110) is arranged between the other third bearing seat (42) and the other fourth bearing seat (52), the second adjusting assembly (120) of the fourth roller gap adjusting mechanism is arranged between one of the fourth bearing seats (52) and one of the fifth bearing seats (62), and the first adjusting assembly (110) is arranged between the other fourth bearing seat (52) and the other fifth bearing seat (62), and the second adjusting assembly (120) of the fifth roller gap adjusting mechanism is arranged between one of the fifth bearing seats (62) and one of the sixth bearing seats (72), and the first adjusting assembly (110) is arranged between the other fifth bearing seat (62) and the other sixth bearing seat (72).

7. The six-roll dry electrode film forming apparatus according to claim 6, wherein The first adjusting assembly (110) comprises a first adjusting motor (1101), a first adjusting speed reducer (1102), a first screw rod (1106), a first nut (1107), a first wedge block (1108) and a first wedge plate (1109), the first adjusting motor (1101) is arranged on the first adjusting speed reducer (1102), the output end of the first adjusting motor (1101) is connected with the input end of the first adjusting speed reducer (1102), the first adjusting speed reducer (1102) is slidingly arranged on one side of the mounting frame (10), one end of the first screw rod (1106) is connected with the output end of the first adjusting speed reducer (1102), the other end of the first screw rod (1106) of the first roll gap adjusting mechanism extends into between the corresponding first bearing seat (22) and the second bearing seat (32) and is rotationally connected with the corresponding second bearing seat (32), the other end of the first screw rod (1106) of the second roll gap adjusting mechanism extends into between the corresponding second bearing seat (32) and the third bearing seat (42) and is rotationally connected with the corresponding third bearing seat (42), the other end of the first screw rod (1106) of the third roll gap adjusting mechanism extends into between the corresponding third bearing seat (42) and the fourth bearing seat (52) and is rotationally connected with the corresponding fourth bearing seat (52), the other end of the first screw rod (1106) of the fourth roll gap adjusting mechanism extends into between the corresponding fourth bearing seat (52) and the fifth bearing seat (62) and is rotationally connected with the corresponding fifth bearing seat (62), the other end of the first screw rod (1106) of the fifth roll gap adjusting mechanism extends into between the corresponding fifth bearing seat (62) and the sixth bearing seat (72) and is rotationally connected with the corresponding sixth bearing seat (72), the first nut (1107) is in threaded connection with the first screw rod (1106), the first wedge block (1108) is sleeved on the outer periphery of the first nut (1107), the first wedge block inclined surface of the first wedge block (1108) is matched with the first wedge plate inclined surface (11091) of the first wedge plate (1109), the first wedge plate (1109) of the first roll gap adjusting mechanism is arranged at one end of the corresponding first bearing seat (22) close to the second roller (30), the first wedge plate (1109) of the second roll gap adjusting mechanism is arranged at one end of the corresponding second bearing seat (32) close to the third roller (40), the first wedge plate (1109) of the third roll gap adjusting mechanism is arranged at one end of the corresponding third bearing seat (42) close to the fourth roller (50), the first wedge plate (1109) of the fourth roll gap adjusting mechanism is arranged at one end of the corresponding fourth bearing seat (52) close to the fifth roller (60), and the first wedge plate (1109) of the fifth roll gap adjusting mechanism is arranged at one end of the corresponding fifth bearing seat (62) close to the sixth roller (70).

8. The six-roll dry electrode film forming apparatus of claim 6, wherein, The second adjusting assembly (120) comprises a second adjusting motor (1201), a second adjusting speed reducer (1202), a connecting rod (1205), a second screw rod (1206), a second nut (1207), a second wedge block (1208) and a second wedge plate (1209), the second adjusting motor (1201) is arranged on the second adjusting speed reducer (1202), the output end of the second adjusting motor (1201) is connected with the input end of the second adjusting speed reducer (1202), the second adjusting speed reducer (1202) is slidingly arranged at the top end of the mounting frame (10), the connecting rod (1205) penetrates through the through hole at the top end of the mounting frame (10), the second screw rod (1206) of the first roll gap adjusting mechanism is located between the corresponding first bearing seat (22) and second bearing seat (32) and is rotationally connected with the corresponding second bearing seat (32), the second screw rod (1206) of the second roll gap adjusting mechanism is located between the corresponding second bearing seat (32) and third bearing seat (42) and is rotationally connected with the corresponding third bearing seat (42), the second screw rod (1206) of the third roll gap adjusting mechanism is located between the corresponding third bearing seat (42) and fourth bearing seat (52) and is rotationally connected with the corresponding fourth bearing seat (52), the second screw rod (1206) of the fourth roll gap adjusting mechanism is located between the corresponding fourth bearing seat (52) and fifth bearing seat (62) and is rotationally connected with the corresponding fifth bearing seat (62), the second screw rod (1206) of the fifth roll gap adjusting mechanism is located between the corresponding fifth bearing seat (62) and sixth bearing seat (72) and is rotationally connected with the corresponding sixth bearing seat (72), one end of the connecting rod (1205) is connected with the output end of the second adjusting speed reducer (1202), the other end of the connecting rod (1205) is connected with one end of the second screw rod (1206), the second nut (1207) is in threaded connection with the second screw rod (1206), the second wedge block (1208) is sleeved on the outer periphery of the second nut (1207), the second wedge block inclined surface of the second wedge block (1208) is matched with the second wedge plate inclined surface (12091) of the second wedge plate (1209), the second wedge plate (1209) of the first roll gap adjusting mechanism is arranged at one end of the corresponding first bearing seat (22) close to the second roller (30), the second wedge plate (1209) of the second roll gap adjusting mechanism is arranged at one end of the corresponding second bearing seat (32) close to the third roller (40), the second wedge plate (1209) of the third roll gap adjusting mechanism is arranged at one end of the corresponding third bearing seat (42) close to the fourth roller (50), the second wedge plate (1209) of the fourth roll gap adjusting mechanism is arranged at one end of the corresponding fourth bearing seat (52) close to the fifth roller (60),The second wedge plate (1209) of the fifth roll gap adjusting mechanism is arranged at one end of the corresponding fifth bearing seat (62) close to the sixth roll (70).

9. The six-roll dry electrode film forming apparatus of claim 2, wherein, The first bearing seat (22), the second bearing seat (32), the third bearing seat (42), the fourth bearing seat (52), the fifth bearing seat (62) and the sixth bearing seat (72) each comprise a bearing seat shell (221) having a through hole and a bearing (222) arranged in the through hole, the bearing (222) being a back-to-back tapered roller bearing, the bearings (222) of two first bearing seats (22) are respectively sleeved on two ends of the first roller (20), the bearings (222) of two second bearing seats (32) are respectively sleeved on two ends of the second roller (30), the bearings (222) of two third bearing seats (42) are respectively sleeved on two ends of the third roller (40), the bearings (222) of two fourth bearing seats (52) are respectively sleeved on two ends of the fourth roller (50), the bearings (222) of two fifth bearing seats (62) are respectively sleeved on two ends of the fifth roller (60), and the bearings (222) of two sixth bearing seats (72) are respectively sleeved on two ends of the sixth roller (70).

10. The six-roll dry electrode film forming apparatus of claim 2, wherein, The output ends of two first pressure applying driving members (80) are respectively provided with two first pressure sensors (81), the two first pressure sensors (81) are respectively connected with the ends of the two first bearing seats (22) away from the second roller (30), the output ends of two second pressure applying driving members (90) are respectively provided with two second pressure sensors (91), and the two second pressure sensors (91) are respectively connected with the ends of the two sixth bearing seats (72) away from the fifth roller (60).

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