A double-sided point coating diaphragm coating apparatus

Abstract

The utility model discloses a kind of double-sided point coating diaphragm coating equipment, including unwinding device, oven, traction device and winding device sequentially arranged from left to right along the walking path of diaphragm, further including multiple roll transfer double-sided point coating device between unwinding device and oven along the walking path of diaphragm, multiple roll transfer double-sided point coating device is used to form A face point coating coating layer, B face point coating coating layer by slurry coating to the A face, B face of diaphragm, multiple roll transfer double-sided point coating device includes coating frame and the A face multiple roll transfer point coating mechanism and B face multiple roll transfer point coating mechanism of setting at the top end of coating frame, A face multiple roll transfer point coating mechanism and B face multiple roll transfer point coating mechanism are left and right oppositely arranged, and diaphragm gap for diaphragm to pass through between the two, oven is used to heat and dry A face point coating coating layer, B face point coating coating layer of diaphragm.The utility model improves production efficiency, reduces production cost, and reduces the risk of diaphragm breakage.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a double-sided dot-coating diaphragm coating device. Background Technology

[0002] Existing dot-coating diaphragm coating equipment typically employs a single-sided coating design, coating only one side of the diaphragm at a time. A common layout is: unwinding unit → A-side dot-coating unit → oven → traction unit → B-side dot-coating unit → oven → traction unit → rewinding unit. The unwinding unit unwinds the diaphragm; the A-side coating unit applies the slurry to the A-side (e.g., the front) of the diaphragm to form the A-side dot-coating layer; the B-side dot-coating unit applies the slurry to the B-side (e.g., the back) of the diaphragm to form the B-side dot-coating layer; two ovens heat and dry the A-side and B-side dot-coating layers respectively; two traction units traction the diaphragm; and the rewinding unit rewinds the diaphragm. This design results in a long overall equipment length, a large footprint, reduced production efficiency, increased production costs, and an increased diaphragm travel length, increasing the risk of diaphragm breakage.

[0003] Therefore, there is an urgent need for an improved double-sided dot-coating diaphragm coating equipment to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a double-sided dot-coating diaphragm coating equipment, which can reduce the overall length of the equipment, thereby reducing the equipment's footprint, improving production efficiency, reducing production costs, and at the same time reducing the length of the diaphragm travel, thus reducing the risk of diaphragm damage.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A double-sided dot-coating diaphragm coating device includes an unwinding device, an oven, a traction device, and a winding device arranged sequentially from left to right along the diaphragm's travel path. The unwinding device is used to unwind the diaphragm, the traction device is used to traction the diaphragm, and the winding device is used to wind the diaphragm. It also includes a multi-roller transfer double-sided dot-coating device arranged between the unwinding device and the oven along the diaphragm's travel path. The multi-roller transfer double-sided dot-coating device is used to coat the slurry onto side A and side B of the diaphragm to form dot-coated coatings on side A and side B. The multi-roller transfer double-sided dot-coating device includes a coating frame and a multi-roller transfer dot-coating mechanism for side A and side B disposed at the top of the coating frame. The multi-roller transfer dot-coating mechanism for side A and side B are arranged opposite each other, with a diaphragm gap between them for the diaphragm to pass through. The oven is used to heat and dry the dot-coated coatings for side A and side B of the diaphragm.

[0007] The beneficial effects of this utility model are as follows: This utility model, through the setting of a multi-roller transfer double-sided dot coating device, includes a coating rack and an A-side multi-roller transfer dot coating mechanism and a B-side multi-roller transfer dot coating mechanism set at the top of the coating rack. Through the multi-roller transfer double-sided dot coating device, the slurry can be coated onto the A-side and B-side of the diaphragm to form an A-side dot coating layer and a B-side dot coating layer. Compared with the prior art, this utility model only needs to be equipped with an oven and a traction device, which reduces the overall length of the equipment, thereby reducing the equipment's footprint, improving production efficiency, reducing production costs, and at the same time reducing the length of the diaphragm travel, thus reducing the risk of diaphragm damage. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic block diagram of a double-sided dot-coating diaphragm coating device provided in the first embodiment of this utility model;

[0010] Figure 2 yes Figure 1 A schematic diagram of the first angle of the multi-roller transfer double-sided dot coating device in the double-sided dot coating diaphragm coating equipment shown.

[0011] Figure 3 yes Figure 2 A schematic diagram of the second angle of the multi-roller transfer double-sided dotting device shown;

[0012] Figure 4 yes Figure 2 A cross-sectional schematic diagram of the multi-roller transfer double-sided dotting device shown.

[0013] Figure 5 yes Figure 2 A schematic diagram of the structure of the two first coating bases and the first angle of the multi-roller transfer double-sided dot coating device shown in the figure;

[0014] Figure 6 yes Figure 5 A schematic diagram of the second angle of the two first coating bases and the multi-roller transfer dotting mechanism on surface A;

[0015] Figure 7 yes Figure 5 A schematic diagram of the first angle of the A-side fabric box assembly of the multi-roller transfer dotting mechanism shown in Figure A;

[0016] Figure 8 yes Figure 7 A schematic diagram of the second angle of fabric box component A shown;

[0017] Figure 9yes Figure 5 A schematic diagram of the structure of the A-side gravure roller bearing housing, the transfer roller bearing housing, and the first gap adjustment assembly of the multi-roller transfer dotting mechanism shown in Figure A;

[0018] Figure 10 yes Figure 5 The diagram shows the structure of the transfer roller bearing housing, the A-side coating roller bearing housing, and the second gap adjustment assembly of the multi-roller transfer dot coating mechanism on side A.

[0019] Figure 11 yes Figure 9 The diagram shows the structure of the first angle of the first gap adjustment component.

[0020] Figure 12 yes Figure 11 The diagram shows the structure of the second angle of the first gap adjustment component.

[0021] Figure 13 yes Figure 2 A schematic diagram of the structure of the two second coating bases and the first angle of the B-side multi-roller transfer dot coating device shown in the diagram.

[0022] Figure 14 yes Figure 13 A schematic diagram of the second angle of the two second coating bases and the multi-roller transfer dotting mechanism on side B;

[0023] Figure 15 yes Figure 13 The diagram shows the structure of the B-side gravure roller bearing housing, the B-side coating roller bearing housing, and the third gap adjustment assembly of the B-side multi-roller transfer dot coating mechanism.

[0024] Figure 16 yes Figure 2 A schematic diagram of the supporting roller mechanism of the multi-roller transfer double-sided coating device shown;

[0025] Figure 17 yes Figure 2 A schematic diagram of the arc-shaped roller mechanism of the multi-roller transfer double-sided dotting device shown;

[0026] Figure 18 yes Figure 2 A schematic diagram of the adjusting roller mechanism of the multi-roller transfer double-sided dot coating device shown;

[0027] Figure 19 yes Figure 2 A schematic diagram of the air-float roller mechanism of the multi-roller transfer double-sided dot coating device shown;

[0028] Figure 20 This is a cross-sectional schematic diagram of a multi-roller transfer double-sided dot coating device for a double-sided dot coating diaphragm coating equipment provided in the second embodiment of this utility model;

[0029] Figure 21 yes Figure 20 A schematic diagram of the structure of the A-side gravure roller bearing seat, the A-side coating roller bearing seat, and the A-side gap adjustment assembly of the multi-roller transfer double-sided dot coating device shown in the figure.

[0030] Figure 22 yes Figure 20 The diagram shows the structure of the B-side gravure roller bearing housing, the B-side coating roller bearing housing, and the B-side gap adjustment assembly of the B-side multi-roller transfer double-sided dot coating device.

[0031] Figure label:

[0032] 1. Unwinding device; 2. Multi-roller transfer double-sided coating device; 3. Drying oven; 4. Traction device; 5. Rewinding device;

[0033] 10. Coating rack; 11. First coating base; 12. Second coating base;

[0034] 20. Multi-roller transfer coating mechanism for surface A; 21. Surface A material box assembly; 211. Surface A material box mounting base; 212. Surface A material box mounting block; 213. Material box; 2131. Material trough; 2132. Feed pipe; 214. Main shaft; 2141. Material box base; 2142. Cylinder plate; 215. Material box cylinder; 22. Surface A gravure roller; 221. Surface A gravure roller bearing seat; 23. Transfer roller; 231. Transfer roller bearing seat; 232. Transfer roller mounting block; 24. Surface A coating roller; 241. Surface A coating roller bearing seat; 242. Surface A coating roller mounting block; 2421. Through hole of Surface A mounting block; 25. Surface A gravure roller drive assembly; 251. Gravure roller 2511. Motor; 252. Drive wheel; 253. Driven wheel; 26. Transfer roller drive assembly; 261. Drive motor; 27. A-side coating roller drive assembly; 28a. First gap adjustment assembly; 281. Adjusting rod; 2811. Handle; 282. Gap adjustment seat; 283. Adjustment mounting plate; 284. Lead screw; 2841. Lead screw bearing seat; 285. Nut; 286. Connecting seat; 287. Adjusting flat block; 2871. Slide groove; 288. Adjusting wedge; 2881. Wedge inclined surface; 28b. Second gap adjustment assembly; 28c. A-side gap adjustment assembly; 29. ​​First adjusting cylinder; 291. First adjusting block;

[0035] 30. Multi-roller transfer coating mechanism for side B; 31. Fabric box assembly for side B; 311. Fabric box mounting base for side B; 312. Fabric box mounting block for side B; 32. Gravure roller for side B; 321. Gravure roller bearing seat for side B; 33. Coating roller for side B; 331. Coating roller bearing seat for side B; 332. Coating roller mounting block for side B; 3321. Through hole of mounting block for side B; 34. Gravure roller drive assembly for side B; 35. Coating roller drive assembly for side B; 36a. Third gap adjustment assembly; 36b. Gap adjustment assembly for side B; 37. Second adjusting cylinder; 371. Second adjusting block;

[0036] 40. Movable cylinder; 41. Movable connecting block;

[0037] 50. Support roller mechanism; 51. Support roller; 511. Support roller bearing seat; 512. Support roller mounting plate;

[0038] 60. Arc-shaped roller mechanism; 61. Arc-shaped roller; 611. Arc-shaped roller bearing housing; 612. Arc-shaped roller mounting plate; 62. Arc-shaped roller drive assembly; 621. Arc-shaped roller motor; 6211. Arc-shaped roller motor housing; 622. Drive wheel;

[0039] 70. Adjusting roller mechanism; 71. Adjusting roller; 711. Adjusting roller bearing seat; 72. Screw slide; 73. Roller adjusting plate; 74. Roller cylinder; 741. First fisheye joint; 742. Mounting shaft; 743. Second fisheye joint;

[0040] 80. Air flotation roller mechanism; 81. Air flotation roller; 811. Air inlet pipe; 812. Air flotation roller mounting base; 82. Rotating shaft; 821. Air flotation roller connecting plate; 822. Rotating shaft bearing; 83. Reducer; 84. Handwheel; 85. Support column. Detailed Implementation

[0041] 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.

[0042] First Embodiment

[0043] Please refer to Figure 1The first embodiment of this utility model provides a double-sided dot coating diaphragm coating equipment, which includes an unwinding device 1, a multi-roller transfer double-sided dot coating device 2, an oven 3, a traction device 4 and a winding device 5 arranged sequentially from left to right along the diaphragm's travel path.

[0044] The unwinding device 1 is used to unwind the diaphragm; the multi-roller transfer double-sided dot coating device 2 is used to coat the slurry onto the A and B sides of the diaphragm to form the A-side dot coating and the B-side dot coating; the drying oven 3 is used to heat and dry the A-side dot coating and the B-side dot coating of the diaphragm; the traction device 4 is used to traction the diaphragm; and the winding device 5 is used to wind the diaphragm.

[0045] This utility model does not make any improvements to the unwinding device 1, the drying oven 3, the traction device 4, and the winding device 5.

[0046] Combination Figures 2 to 4 As shown, the multi-roller transfer double-sided dot coating device 2 includes a coating frame 10 and an A-side multi-roller transfer dot coating mechanism 20 and a B-side multi-roller transfer dot coating mechanism 30 disposed at the top of the coating frame 10. The A-side multi-roller transfer dot coating mechanism 20 and the B-side multi-roller transfer dot coating mechanism 30 are arranged opposite each other from left to right, and there is a diaphragm gap between them for the diaphragm to pass through. In practical applications, the diaphragm is first unwound by the unwinding device 1. The unwound diaphragm then enters the coating rack 10 from one side, passes through the gaps in the diaphragm, and is coated onto the A-side of the diaphragm by the A-side multi-roller transfer coating mechanism 20 to form an A-side dot coating. Simultaneously, the B-side multi-roller transfer coating mechanism 30 coats the diaphragm onto the B-side of the diaphragm to form a B-side dot coating. The diaphragm then enters the drying oven 3, where the A-side and B-side dot coatings are heated and dried. After exiting the drying oven 3, the diaphragm is pulled by the traction device 4 and then wound up by the winding device 5. The A-side of the diaphragm is, for example, the front side, and the B-side is, for example, the back side.

[0047] This invention utilizes a multi-roller transfer double-sided dot coating device 2 to apply slurry to the A and B surfaces of the diaphragm to form dot coatings on the A and B surfaces. Compared to existing technologies, this invention only requires an oven 3 and a traction device 4, reducing the overall length of the equipment, thereby reducing the equipment's footprint, improving production efficiency, and lowering production costs. It also reduces the length of the diaphragm travels, thus reducing the risk of diaphragm breakage.

[0048] Combination Figures 2 to 5 , Figure 13As shown, in this embodiment, two first coating bases 11 arranged in a front-to-back orientation are slidably disposed on both sides of the top of the coating rack 10, and two second coating bases 12 arranged in a front-to-back orientation are fixedly disposed. A multi-roller transfer coating mechanism 20 for side A is disposed at the top of the two first coating bases 11, and a multi-roller transfer coating mechanism 30 for side B is disposed at the top of the two second coating bases 12. The multi-roller transfer double-sided coating device 2 also includes two moving cylinders 40 arranged in a front-to-back orientation. The two moving cylinders 40 are respectively disposed on the outer sides of the two second coating bases 12, and the output ends of the two moving cylinders 40 are respectively connected to the outer sides of the two first coating bases 11 through L-shaped moving connecting blocks 41. The two moving cylinders 40 are used to drive the two first coating bases 11 to move left and right, thereby driving the multi-roller transfer coating mechanism 20 for side A to move left and right, increasing or decreasing the width of the diaphragm gap. Increasing the width of the diaphragm gap facilitates the threading of the diaphragm. In practical applications, the A-side multi-roller transfer coating mechanism 20 is first driven to move to the left by two moving cylinders 40 to increase the width of the diaphragm gap. Then, the diaphragm is passed through the diaphragm gap to achieve diaphragm threading. Finally, the A-side multi-roller transfer coating mechanism 20 is driven to move to the right to the initial position by two moving cylinders 40.

[0049] Two first coating bases 11 are respectively slidably mounted on both sides of the top of the coating rack 10 via conventional slide rails and sliders.

[0050] Combination Figures 4 to 8 , Figure 13 and Figure 14 As shown, the B-side multi-roller transfer dot coating mechanism 30 includes a B-side fabric box assembly 31, a B-side gravure roller 32, and a B-side coating roller 33 arranged sequentially from right to left.

[0051] The two ends of the B-side fabric box assembly 31 are respectively mounted on two B-side fabric box mounting seats 311, which provide mounting support for the B-side fabric box assembly 31. The two B-side fabric box mounting seats 311 are respectively located at the top of two B-side fabric box mounting blocks 312, which are respectively located at the top of two second coating bases 12. The B-side gravure roller 32 is partially housed in the material trough 2131 of the B-side fabric box assembly 31, and the two ends of the B-side gravure roller 32 are respectively mounted on two B-side gravure roller bearing seats 321. The two B-side gravure roller bearing seats 321 correspond to the two B-side fabric box mounting seats 311, and provide rotational support for the B-side gravure roller 32. The two B-side gravure roller bearing seats 321 are respectively located at the top of the two B-side fabric box mounting blocks 312. One end of the B-side gravure roller 32 is connected to the B-side gravure roller drive assembly 34, which drives the B-side gravure roller 32 to rotate. A plurality of B-side protrusions are evenly distributed on the outer circumferential surface of the B-side coating roller 33. These protrusions contact the outer circumferential surface of the B-side gravure roller 32. The cross-sectional shape of the B-side protrusions is circular. The size, spacing, and number of the B-side protrusions can be set according to actual conditions. The two ends of the B-side coating roller 33 are respectively mounted on two B-side coating roller bearing seats 331, which correspond to two B-side gravure roller bearing seats 321. The two B-side coating roller bearing seats 331 can provide rotational support for the B-side coating roller 33. The two B-side coating roller bearing seats 331 are respectively mounted on the top of two B-side coating roller mounting blocks 332, which are respectively mounted on the top of two second coating bases 12. In this embodiment, the B-side coating roller mounting block 332 has B-side mounting block through holes 3321 that pass through both sides of it. One end of the B-side coating roller 33 is connected to the B-side coating roller drive assembly 35, which is used to drive the B-side coating roller 33 to rotate. By setting up the B-side gravure roller drive assembly 34 and the B-side coating roller drive assembly 35, the rotation speed and rotation direction of the B-side gravure roller 32 and the B-side coating roller 33 can be independently controlled.

[0052] The A-side multi-roller transfer coating mechanism 20 includes, from left to right, an A-side fabric box assembly 21, an A-side gravure roller 22, a transfer roller 23, and an A-side coating roller 24.

[0053] The two ends of the A fabric box assembly 21 are respectively disposed on two A fabric box mounting bases 211. The two A fabric box mounting bases 211 can provide installation support for the A fabric box assembly 21. The two A fabric box mounting bases 211 are respectively disposed on the top of two A fabric box mounting blocks 212. The two A fabric box mounting blocks 212 are respectively disposed on the top of two first coating bases 11. The A-side gravure roller 22 is partially housed within the material trough 2131 of the A-side fabric box assembly 21, with both ends of the A-side gravure roller 22 respectively mounted on two A-side gravure roller bearing seats 221. The two A-side gravure roller bearing seats 221 correspond to two A-side fabric box mounting seats 211 respectively, providing rotational support for the A-side gravure roller 22. The two A-side gravure roller bearing seats 221 are respectively mounted on the top of two A-side fabric box mounting blocks 212. One end of the A-side gravure roller 22 is connected to the A-side gravure roller drive assembly 25, which is used to drive the A-side gravure roller 22 to rotate. The outer peripheral surface of the transfer roller 23 is in contact with the outer peripheral surface of the A-side gravure roller 22, and both ends of the transfer roller 23 are respectively mounted on two transfer roller bearing seats 231. The two transfer roller bearing seats 231 correspond to the two A-side gravure roller bearing seats 221, respectively. The two transfer roller bearing seats 231 provide rotational support for the transfer roller 23. The two transfer roller bearing seats 231 are respectively mounted on the top of two transfer roller mounting blocks 232, and the two transfer roller mounting blocks 232 are respectively mounted on the top of two first coating bases 11. One end of the transfer roller 23 is connected to the transfer roller drive assembly 26, which is used to drive the transfer roller 23 to rotate. In this embodiment, the size of the transfer roller 23 is the same as the size of the A-side coating roller 24. The A-side coating roller 24 is the same size as the B-side coating roller 33 and is arranged to face each other from left to right. The outer circumferential surface of the A-side coating roller 24 has a number of A-side protrusions evenly distributed. The A-side protrusions are in contact with the outer circumferential surface of the transfer roller 23 and have the diaphragm gap between them and the B-side protrusions. The size and distribution spacing of the A-side protrusions are the same as those of the B-side protrusions. The two ends of the A-side coating roller 24 are respectively mounted on two A-side coating roller bearing seats 241, which correspond to two transfer roller bearing seats 231 respectively. The two A-side coating roller bearing seats 241 can provide rotational support for the A-side coating roller 24. The two A-side coating roller bearing seats 241 are respectively mounted on the top of two A-side coating roller mounting blocks 242, which are respectively mounted on the top of two first coating bases 11. In this embodiment, the A-side coating roller mounting block 242 has A-side mounting block through holes 2421 that pass through both sides of it. One end of the A-side coating roller 24 is connected to the A-side coating roller drive assembly 27, which is used to drive the A-side coating roller 24 to rotate.The rotation speed and direction of rotation of the A-side gravure roller 22, transfer roller 23 and A-side coating roller 24 can be independently controlled by the A-side gravure roller drive assembly 25, transfer roller drive assembly 26 and A-side coating roller drive assembly 27.

[0054] With the above structure, in practical application, the diaphragm passes through the diaphragm gap, and the A-side of the diaphragm contacts the A-side protrusion of the A-side multi-roller transfer coating mechanism 20, while the B-side of the diaphragm contacts the B-side protrusion of the B-side multi-roller transfer coating mechanism 30. The A-side gravure roller 22 is driven to rotate by the A-side gravure roller drive assembly 25, the transfer roller 23 is driven to rotate by the transfer roller drive assembly 26, the A-side coating roller 24 is driven to rotate by the A-side coating roller drive assembly 27, the B-side gravure roller 32 is driven to rotate by the B-side gravure roller drive assembly 34, and the B-side coating roller 33 is driven to rotate by the B-side coating roller drive assembly 35. The A-side coating roller 24 and the B-side coating roller 33 rotate in opposite directions, as do the transfer roller 23 and the A-side coating roller 24, and the A-side gravure roller 22 and the transfer roller 23 rotate in opposite directions. Conversely, the B-side gravure roller 32 and the B-side coating roller 33 rotate in opposite directions. The rotation of the A-side gravure roller 22 carries the slurry in the material trough 2131 of the A-side fabric box assembly 21 and transfers it to the transfer roller 23. The rotation of the transfer roller 23 transfers the slurry on it to several A-side protrusions on the A-side coating roller 24. The rotation of the B-side gravure roller 32 carries the slurry in the material trough 2131 of the B-side fabric box assembly 31 and transfers it to several B-side protrusions on the B-side coating roller 33. Since the A-side coating roller 24 and the B-side coating roller 33 rotate in opposite directions, the slurry can be coated onto the A-side and B-side surfaces of the diaphragm respectively through the A-side protrusions and B-side protrusions to form A-side dot coating and B-side dot coating.

[0055] In this embodiment, fabric box assembly A 21 and fabric box assembly B 31 are arranged symmetrically from left to right. Both fabric box assembly A 21 and fabric box assembly B 31 include a material box 213 and two material box cylinders 215 arranged in a front-to-back opposite manner. The material box 213, A-side gravure roller 22, transfer roller 23 and A-side coating roller 24 of fabric box assembly A are arranged sequentially from left to right, while the material box 213, B-side gravure roller 32 and B-side coating roller 33 of fabric box assembly B are arranged sequentially from right to left. The material box 213 has a material trough 2131 on one side, and a feed pipe 2132 communicating with the material trough 2131 and a main shaft 214 connected to the other side of the material box 213. The two ends of the main shaft 214 are respectively set on two material box bases 2141. The two material box bases 2141 of the A material box assembly 21 are slidably set on the inner side of the two A material box mounting seats 211 through conventional slide rails and sliders. The two material box bases 2141 of the B material box assembly 31 are slidably set on the inner side of the two B material box mounting seats 311 through conventional slide rails and sliders. The main shaft 214 and the two material box bases 2141 can provide installation support for the material box 213. The feed pipe 2132 is used to connect to the slurry supply equipment. The slurry supply equipment can deliver slurry into the material trough 2131 through the feed pipe 2132. The two material box cylinders 215 of the A material box assembly 21 are respectively disposed inside the two first coating bases 11. The two material box cylinders 215 of the B material box assembly 31 are respectively disposed inside the two second coating bases 12. A cylinder plate 2142 is provided on the side of the material box base 2141 away from the material box 213. The cylinder plate 2142 and the material box base 2141 form an L-shaped structure. The output ends of the two material box cylinders 215 are respectively connected to the cylinder plates 2142 of the two material box bases 2141. Two cylinders 215 drive the two material box bases 2141 to move left and right, thereby moving the main shaft 214 and the material box 213 left and right. The left and right movement of the material box 213 in the A-side material box assembly 21 adjusts the depth of the A-side gravure roller 22 immersed in the slurry in the A-side material box assembly 21. Similarly, the left and right movement of the material box 213 in the B-side material box assembly 31 adjusts the depth of the B-side gravure roller 32 immersed in the B-side material box assembly 31. This allows for adjustment of the amount of slurry carried by the A-side gravure roller 22 from its corresponding slurry groove 2131, and the amount of slurry carried by the B-side gravure roller 32 from its corresponding slurry groove 2131. A deeper immersion depth results in a larger amount of slurry carried, while a shallower immersion depth results in a smaller amount of slurry carried.

[0056] The transfer roller drive assembly 26, the A-side coating roller drive assembly 27, and the B-side coating roller drive assembly 35 all include a drive motor 261. The drive motor 261 of the transfer roller drive assembly 26 is located outside one of the transfer roller bearing seats 231, and its output end is connected to one end of the transfer roller 23. The drive motor 261 of the transfer roller drive assembly 26 drives the transfer roller 23 to rotate. The drive motor 261 of the A-side coating roller drive assembly 27 is located outside one of the A-side coating roller bearing seats 241, and its output end is connected to one end of the A-side coating roller 24. The drive motor 261 of the A-side coating roller drive assembly 27 drives the A-side coating roller 24 to rotate. The drive motor 261 of the B-side coating roller drive assembly 35 is located outside one of the B-side coating roller bearing seats 331 and the output end of the drive motor 261 is connected to one end of the B-side coating roller 33. The drive motor 261 of the B-side coating roller drive assembly 35 is used to drive the B-side coating roller 33 to rotate.

[0057] Both the A-side gravure roller drive assembly 25 and the B-side gravure roller drive assembly 34 include a gravure roller motor 251 and a synchronous belt module. The gravure roller motor 251 of the A-side gravure roller drive assembly 25 is mounted on the outside of one of the A-side fabric box mounting seats 211 via a gravure roller motor mount 2511. Similarly, the gravure roller motor 251 of the B-side gravure roller drive assembly 34 is mounted on the outside of one of the B-side fabric box mounting seats 311 via a gravure roller motor mount 2511. The output end of the gravure roller motor 251 of the A-side gravure roller drive assembly 25 is connected to one end of the A-side gravure roller 22 via the synchronous belt module of the A-side gravure roller drive assembly 25. The gravure roller motor 251 of the A-side gravure roller drive assembly 25 is used to drive the A-side gravure roller 22 to rotate via the synchronous belt module of the A-side gravure roller drive assembly 25. The output end of the gravure roller motor 251 of the B-side gravure roller drive assembly 34 is connected to one end of the B-side gravure roller 32 via the synchronous belt module of the B-side gravure roller drive assembly 34. The gravure roller motor 251 of the B-side gravure roller drive assembly 34 is used to drive the B-side gravure roller 32 to rotate via the synchronous belt module of the B-side gravure roller drive assembly 34.

[0058] The synchronous belt module includes a drive pulley 252, a driven pulley 253, and a synchronous belt (not shown in the figure) sleeved on the outer periphery of the drive pulley 252 and the driven pulley 253. The drive pulley 252 is sleeved on the outer periphery of the output end of the gravure roller motor 251 and located inside the gravure roller motor base 2511. The driven pulley 253 of the A-side gravure roller drive assembly 25 is sleeved on the outer periphery of one end of the A-side gravure roller 22, and the driven pulley 253 of the B-side gravure roller drive assembly 34 is sleeved on the outer periphery of one end of the B-side gravure roller 32. The gravure roller motor base 2511 has a clearance position for avoiding the synchronous belt. The gravure roller motor 251 drives the drive pulley 252 to rotate, and under the transmission of the driven pulley 253 and the synchronous belt, it can drive the corresponding gravure roller to rotate.

[0059] In this embodiment, the transfer roller 23 and the B-side coating roller 33 are both rubber rollers, while the A-side coating roller 24 is a steel roller. Both rubber rollers and steel rollers have wear resistance and other characteristics, which extend the service life of the A-side multi-roller transfer coating mechanism 20 and the B-side multi-roller transfer coating mechanism 30.

[0060] Furthermore, combined Figure 4 , Figure 5 , Figures 9 to 13 , Figure 15 As shown, two A-side fabric box mounting blocks 212 and two transfer roller mounting blocks 232 are slidably mounted on the tops of two first coating bases 11 via conventional slide rails and sliders. Two A-side coating roller mounting blocks 242 are fixedly mounted on the tops of two first coating bases 11. Two first gap adjustment components 28a are provided between the two A-side gravure roller bearing seats 221 and the two transfer roller bearing seats 231, and two second gap adjustment components 28b are provided between the two transfer roller bearing seats 231 and the two A-side coating roller bearing seats 241. Two first adjustment cylinders 29 are provided on the outer side of the two first coating bases 11, which are arranged in a front-to-back manner. The output end of one of the first adjustment cylinders 29 is connected to one of the A-side fabric box mounting bases 211 and one of the A-side fabric box mounting blocks 212, and the output end of the other first adjustment cylinder 29 is connected to the other A-side fabric box mounting base 211 and the other A-side fabric box mounting block 212. Two first adjusting cylinders 29 are used to drive the corresponding A-side fabric box mounting base 211 and A-side fabric box mounting block 212 to move left and right, respectively. Through the two first gap adjusting components 28a, two second gap adjusting components 28b, and two first adjusting cylinders 29, the contact force between the outer peripheral surface of the A-side gravure roller 22 and the outer peripheral surface of the transfer roller 23, and the contact force between the outer peripheral surface of the transfer roller 23 and the A-side protrusions of the A-side coating roller 24, can be adjusted. This allows for the adjustment of the amount of slurry transferred from the A-side gravure roller 22 to the transfer roller 23, and the amount of slurry transferred from the transfer roller 23 to the A-side protrusions of the A-side coating roller 24. A larger contact force results in a larger amount of slurry transferred, and a smaller contact force results in a smaller amount of slurry transferred.

[0061] In this embodiment, the end of the fabric box mounting base 211 and the fabric box mounting block 212 away from the coating roller 24 on the A side is provided with an L-shaped first adjusting block 291, and the output ends of the two first adjusting cylinders 29 are respectively connected to the corresponding first adjusting blocks 291.

[0062] Two B-side fabric box mounting blocks 312 are slidably mounted on the tops of two second coating bases 12 via conventional slide rails and sliders. Two B-side coating roller mounting blocks 332 are fixedly mounted on the tops of two second coating bases 12. Two third gap adjustment components 36a are respectively provided between the two B-side gravure roller bearing seats 321 and the two B-side coating roller bearing seats 331. Two second adjusting cylinders 37 are respectively provided on the outer sides of the two second coating bases 12, arranged in a front-to-back configuration. The output end of one second adjusting cylinder 37 is connected to one B-side fabric box mounting base 311 and one B-side fabric box mounting block 312, and the output end of the other second adjusting cylinder 37 is connected to the other B-side fabric box mounting base 311 and the other B-side fabric box mounting block 312. The two second adjusting cylinders 37 are used to drive the corresponding B-side fabric box mounting base 311 and B-side fabric box mounting block 312 to move left and right. By using two third gap adjustment components 36a and two second adjustment cylinders 37, the contact force between the outer peripheral surface of the B-side gravure roller 32 and the B-side protrusions of the B-side coating roller 33 can be adjusted, thereby adjusting the amount of slurry transferred from the B-side gravure roller 32 to the B-side protrusions of the B-side coating roller 33.

[0063] In this embodiment, two first gap adjustment components 28a and two second gap adjustment components 28b are arranged side by side, and two third gap adjustment components 36a are arranged symmetrically to the left and right of the two second gap adjustment components 28b. Each of the first gap adjustment components 28a, the second gap adjustment components 28b and the third gap adjustment components 36a includes a driving component, an adjustment mounting plate 283, a lead screw 284, a nut 285, a connecting seat 286, a T-shaped adjustment flat block 287 and a T-shaped adjustment wedge block 288.

[0064] The driving component is located at the top of the adjustment mounting plate 283. The adjustment mounting plate 283 of the first gap adjustment assembly 28a is located at the top of the corresponding transfer roller bearing seat 231, the adjustment mounting plate 283 of the second gap adjustment assembly 28b is located at the top of the corresponding A-side coating roller bearing seat 241, and the adjustment mounting plate 283 of the third gap adjustment assembly 36a is located at the top of the corresponding B-side coating roller bearing seat 331.

[0065] The lead screw 284 of the first gap adjusting assembly 28a is located between the corresponding A-side gravure roller bearing seat 221 and the corresponding transfer roller bearing seat 231. The lead screw 284 of the second gap adjusting assembly 28b is located between the corresponding transfer roller bearing seat 231 and the corresponding A-side coating roller bearing seat 241. The lead screw 284 of the third gap adjusting assembly 36a is located between the corresponding B-side gravure roller bearing seat 321 and the corresponding B-side coating roller bearing seat 331. One end of the lead screw 284 passes through the through hole of the adjusting mounting plate 232 and is connected to the driving component. The lead screw 284 is rotatably connected to the through hole of the adjusting mounting plate 232. The other end of the lead screw 284 extends downward. The driving component is used to drive the lead screw 284 to rotate.

[0066] Nut 285 is threaded into screw 284. Connecting seat 286 is sleeved on the outer circumference of nut 285. One side of adjusting block 287 is provided with slide groove 2871. One end of connecting seat 286 is slidably engaged with slide groove 2871 of adjusting block 284. The slide groove 2871 can improve the stability of the up and down movement of connecting seat 286. The other end of connecting seat 286 is provided with connecting seat inclined surface. One side of adjusting wedge block 288 is provided with wedge inclined surface 2881. Connecting seat inclined surface is engaged with wedge inclined surface 2881 of adjusting wedge block 288. The adjusting flat block 287 of the first gap adjusting component 28a is located at one end of the corresponding transfer roller bearing seat 231 near the A-side gravure roller 22. The adjusting wedge block 288 of the first gap adjusting component 28a is located at one end of the corresponding A-side gravure roller bearing seat 221 near the transfer roller 23. The adjusting flat block 287 of the second gap adjusting component 28b is located at one end of the corresponding A-side coating roller bearing seat 241 near the transfer roller 23. The adjusting wedge block 288 of the second gap adjusting component 28b is located at one end of the corresponding transfer roller bearing seat 231 near the A-side coating roller 24. The adjusting flat block 287 of the third gap adjusting component 36a is located at one end of the corresponding B-side coating roller bearing seat 331 near the B-side gravure roller 32. The adjusting wedge block 288 of the third gap adjusting component 36a is located at one end of the corresponding B-side gravure roller bearing seat 321 near the B-side coating roller 33. In this embodiment, the wedge slope 2881 of the first gap adjustment component 28a and the second gap adjustment component 28b are inclined toward the direction of the multi-roller transfer coating mechanism 30 on the B side, and the wedge slope 2881 of the third gap adjustment component 36a is inclined toward the direction of the multi-roller transfer coating mechanism 20 on the A side.

[0067] In this embodiment, the driving component includes an adjusting rod 281 and a gap adjusting seat 282, the gap adjusting seat 282 being open on both sides and at the bottom. The gap adjusting seat 282 is located at the top of the adjusting mounting plate 283. One end of the adjusting rod 281 has a handle 2811, and the other end of the adjusting rod 281 passes through the through hole at the top of the gap adjusting seat 282 and extends into the gap adjusting seat 282. The adjusting rod 281 is rotatably connected to the through hole at the top of the gap adjusting seat 282. One end of the lead screw 284 extends into the gap adjusting seat 282 and is connected to the other end of the adjusting rod 281. By rotating the handle 2811, the adjusting rod 281 can be rotated, which in turn can drive the lead screw 284 to rotate. The rotation of the lead screw 284 can drive the nut 285 and the connecting seat 286 to move up and down. A lead screw bearing 2841 is provided in the through hole of the adjusting mounting plate 283, and the lead screw bearing 2841 is sleeved on the outer circumference of the lead screw 284 to provide rotational support for the lead screw 284. Understandably, the driving component can also be, for example, a motor, a rotary cylinder, etc.

[0068] With the above structure, for example, when it is necessary to increase the contact force between the outer peripheral surface of the A-side gravure roller 2 and the outer peripheral surface of the transfer roller 23, firstly rotate the handles 2811 of the two first gap adjustment components 28a, thereby driving the corresponding lead screw 284 to rotate through the corresponding adjustment rod 281, which in turn drives the corresponding nut 285 and connecting seat 286 to move downward. At this time, the inclined surface of the connecting seat 286 and the inclined surface 2881 of the corresponding adjusting wedge 288 separate, and then the output ends of the two first adjustment cylinders 29 retract, thereby driving the two first... The adjusting cylinder 29 can drive the corresponding A fabric box mounting base 211 and A fabric box mounting block 212 to move to the right, thereby driving the A fabric box assembly 21, A-side gravure roller 22, two A-side gravure roller bearing seats 221, and the adjusting wedges 288 of the two first gap adjusting components 28a to move to the right until the wedge slope 2881 of the adjusting wedges 288 of the two first gap adjusting components 28a and the connecting seat slope of the corresponding connecting seat 286 are engaged. In this way, the contact force between the outer peripheral surface of the A-side gravure roller 22 and the outer peripheral surface of the transfer roller 23 is increased. When it is necessary to reduce the contact force between the outer peripheral surface of the A-side gravure roller 22 and the outer peripheral surface of the transfer roller 23, first rotate the handles 2811 of the two first gap adjustment components 28a. This will cause the corresponding lead screw 284 to rotate via the corresponding adjustment rod 281, which in turn will cause the corresponding nut 285 and connecting seat 286 to move upward. At this time, under the action of the connecting seat inclined surface of the connecting seat 286 and the wedge inclined surface 2881 of the corresponding adjusting wedge 288, the connecting seat 286 can push the corresponding adjusting wedge 288 and the corresponding A-side gravure roller bearing seat 221 to move to the left. This will cause the A-side gravure roller 22, A-side fabric box assembly 21, two A-side fabric box mounting seats 211, and two A-side fabric box mounting blocks 212 to move to the left, which will cause the output ends of the two first adjustment cylinders 29 to extend. In this way, the contact force between the outer peripheral surface of the A-side gravure roller 22 and the outer peripheral surface of the transfer roller 23 is reduced. The A-side gravure roller drive assembly 25 can move synchronously with the corresponding A-side fabric box mounting base 211 and A-side gravure roller 22. The transfer roller drive assembly 26 can move synchronously with the corresponding transfer roller bearing seat 231 and transfer roller 23. The A-side coating roller drive assembly 27 can move synchronously with the corresponding A-side coating roller bearing seat 241 and A-side coating roller 24. The B-side gravure roller drive assembly 34 can move synchronously with the corresponding B-side fabric box mounting base 311 and B-side gravure roller 32. The B-side coating roller drive assembly 35 can move synchronously with the corresponding B-side coating roller bearing seat 331 and B-side coating roller 33.

[0069] When it is necessary to increase the contact force between the outer peripheral surface of the transfer roller 23 and the A-side protrusion of the A-side coating roller 24, first rotate the handles 2811 of the two second gap adjustment components 28b. This will cause the corresponding lead screw 284 to rotate via the corresponding adjustment rod 281, which in turn will cause the corresponding nut 285 and connecting seat 286 to move downward. At this time, the inclined surface of the connecting seat 286 and the inclined surface 2881 of the corresponding adjusting wedge 288 separate. Then, the output ends of the two first adjustment cylinders 29 retract, thereby driving the corresponding A-side fabric box mounting seat 211 and A-side coating roller 24 respectively. The fabric box mounting block 212 moves to the right, thereby driving the A fabric box assembly 21, the A-side gravure roller 22, the two A-side gravure roller bearing seats 221, the two first gap adjustment components 28a, the transfer roller 23, the two transfer roller bearing seats 231, the two transfer roller mounting blocks 232, and the adjusting wedges 288 of the two second gap adjustment components 28b to move to the right until the wedge slope 2881 of the adjusting wedges 288 of the two second gap adjustment components 28b and the connecting seat slope of the corresponding connecting seat 286 are engaged. In this way, the contact force between the outer peripheral surface of the transfer roller 23 and the A-side protrusion of the A-side coating roller 24 is increased. When the contact force between the outer peripheral surface of the transfer roller 23 and the A-side protrusion of the A-side coating roller 24 needs to be reduced, first rotate the handles 2811 of the two second gap adjustment components 28b. This will cause the corresponding lead screw 284 to rotate via the corresponding adjustment rod 281, which in turn will cause the corresponding nut 285 and connecting seat 286 to move upward. At this time, under the action of the connecting seat inclined surface of the connecting seat 286 and the wedge inclined surface 2881 of the corresponding adjusting wedge 288, the connecting seat 286 can push... The corresponding adjusting wedge 288 and the corresponding transfer roller bearing seat 231 move to the left, thereby driving the transfer roller 231, the two transfer roller mounting blocks 232, the two first gap adjusting components 28a, the A-side gravure roller 22, the A-side fabric box assembly 21, the two A-side fabric box mounting seats 211, and the two A-side fabric box mounting blocks 212 to move to the left, which in turn drives the output ends of the two first adjusting cylinders 29 to extend. In this way, the contact force between the outer peripheral surface of the transfer roller 23 and the A-side protrusion of the A-side coating roller 24 is reduced. The A-side gravure roller drive assembly 25 can move synchronously with the corresponding A-side fabric box mounting base 211 and A-side gravure roller 22. The transfer roller drive assembly 26 can move synchronously with the corresponding transfer roller bearing seat 231 and transfer roller 23. The A-side coating roller drive assembly 27 can move synchronously with the corresponding A-side coating roller bearing seat 241 and A-side coating roller 24. The B-side gravure roller drive assembly 34 can move synchronously with the corresponding B-side fabric box mounting base 311 and B-side gravure roller 32. The B-side coating roller drive assembly 35 can move synchronously with the corresponding B-side coating roller bearing seat 331 and B-side coating roller 33.

[0070] The steps for adjusting the contact force between the outer peripheral surface of the B-side gravure roller 32 and the B-side protrusion of the B-side coating roller 33 are the same as those for adjusting the contact force between the outer peripheral surface of the A-side gravure roller 2 and the outer peripheral surface of the transfer roller 23, and will not be repeated here.

[0071] Furthermore, combined Figures 2 to 4 , Figures 16 to 19 As shown, the multi-roller transfer double-sided dot coating device 2 also includes a supporting roller mechanism 50, an arc-shaped roller mechanism 60, an adjusting roller mechanism 70, and an air-float roller mechanism 80. The supporting roller mechanism 50, the arc-shaped roller mechanism 60, and the adjusting roller mechanism 70 are sequentially arranged from left to right within the coating rack 10 along the diaphragm's travel path. The adjusting roller mechanism 70 is located below the diaphragm gap, and the air-float roller mechanism 80 is located above the diaphragm gap. The two ends of the air-float roller mechanism 80 are respectively positioned at the top of two support pillars 85. The coating rack 10 is located between the two support pillars 85, which provide mounting support for the air-float roller mechanism 80. The supporting roller mechanism 50 is used to support the diaphragm. In this embodiment, there are two supporting roller mechanisms 50, which are staggered vertically. Understandably, the number of supporting roller mechanisms 50 can be set according to actual conditions. The curved roller mechanism 60 is used to flatten the diaphragm, preventing wrinkles and facilitating the application of slurry to the A-side of the diaphragm by the A-side multi-roller transfer coating mechanism 20 and to the B-side of the diaphragm by the B-side multi-roller transfer coating mechanism 30. The adjusting roller mechanism 70 is used to adjust the lateral position of the diaphragm, ensuring it remains vertical as it passes through the gap. This ensures that the A-side protrusions of the A-side multi-roller transfer coating mechanism 20 and the B-side protrusions of the B-side multi-roller transfer coating mechanism 30 are in contact with the A-side of the diaphragm, allowing for slurry application to both surfaces. The air-floating roller mechanism 80 provides suspension support for the diaphragm, preventing direct contact and improving coating quality.

[0072] Specifically, the supporting roller mechanism 50 includes a supporting roller 51. Both ends of the supporting roller 51 are rotatably mounted on the inner sides of two supporting roller mounting plates 512 via two supporting roller bearing seats 511. The two supporting roller mounting plates 512 are respectively mounted on the inner walls of both sides of the coating rack 10. In practical applications, after the diaphragm enters the coating rack 10, it first passes around the right side of the outer periphery of the supporting roller 51 of the lower supporting roller mechanism 50, and then passes around the left side of the outer periphery of the supporting roller 51 of the upper supporting roller mechanism 50. The supporting roller 51 supports the diaphragm.

[0073] The arc-shaped roller mechanism 60 includes an arc-shaped roller 61 and an arc-shaped roller drive assembly 62. The two ends of the arc-shaped roller 61 are rotatably mounted on the inner sides of two arc-shaped roller mounting plates 612 via two arc-shaped roller bearing seats 611. The two arc-shaped roller mounting plates 612 are respectively mounted on the inner walls of both sides of the coating rack 10. The arc-shaped roller drive assembly 62 is located on the inner side of one of the arc-shaped roller mounting plates 612 and connected to one end of the arc-shaped roller 61. The arc-shaped roller 61 is used to flatten the diaphragm. The arc-shaped roller drive assembly 62 is used to drive the arc-shaped roller 61 to rotate. In practical applications, the diaphragm passes over the top of the outer circumference of the arc-shaped roller 61, and the arc-shaped roller 61 is driven to rotate by the arc-shaped roller drive assembly 62, thereby flattening the diaphragm through the arc-shaped roller 61.

[0074] The arc roller drive assembly 62 includes an arc roller motor 621 and a transmission module. The arc roller motor 621 is mounted on the inner side of one of the arc roller mounting plates 612 via an arc roller motor base 6211. The arc roller motor 621 is connected to one end of the arc roller 61 via the transmission module. The arc roller motor 621 is used to drive the arc roller 61 to rotate via the transmission module.

[0075] The transmission module includes a drive pulley 622, a driven pulley (not shown in the figure), and a belt (not shown in the figure) fitted around the outer periphery of the drive pulley 622 and the driven pulley. The drive pulley 622 is fitted around the outer periphery of the output end of the arc-shaped roller motor 621 and located inside the arc-shaped roller motor base 621. The driven pulley is fitted around the outer periphery of one end of the arc-shaped roller 61. The arc-shaped roller motor base 6211 has a clearance position for avoiding the belt. The arc-shaped roller motor 621 drives the drive pulley 622 to rotate, and under the transmission action of the driven pulley and the belt, it can drive the arc-shaped roller 61 to rotate.

[0076] The adjusting roller mechanism 70 includes an adjusting roller 71, two screw slides 72, and two roller cylinders 74. The adjusting roller 71 is located below the diaphragm gap. Both ends of the adjusting roller 71 are rotatably mounted on the two screw slides 72 via two adjusting roller bearing seats 711. The line connecting the right side of the outer circumference of the adjusting roller 71 to the center of the diaphragm gap is vertical. The screw slides 72 are conventional manual screw slides. The two screw slides 72 are respectively located inside the two roller adjusting plates 73. The two roller adjusting plates 73 are slidably mounted on the inner walls of both sides of the coating rack 10 via conventional slide rails and sliders. The mounting ends of the two roller cylinders 74 are rotatably connected to the inner walls of both sides of the two coating racks 10, and the output ends of the two roller cylinders 74 are rotatably connected to the two roller adjusting plates 73. The two roller cylinders 74 are used to drive the two roller adjusting plates 73 to rotate left and right, thereby moving the two screw slides 72 and the adjusting roller 71 left and right. By moving the adjusting roller 71 left and right, its position can be adjusted to ensure that the line connecting the right side of the outer circumference of the adjusting roller 71 and the center of the diaphragm gap is vertical. This ensures that when the diaphragm passes over the right side of the outer circumference of the adjusting roller 71 and through the diaphragm gap, the diaphragm remains vertical. This also ensures that surface A of the diaphragm contacts the A-side protrusion of the A-side multi-roller transfer coating mechanism 20, and surface B of the diaphragm contacts the B-side protrusion of the B-side multi-roller transfer coating mechanism 30. Rotating the handle of the screw slide 72 moves one end of the adjusting roller 71 left and right, allowing for fine-tuning of the left and right positions of both ends of the adjusting roller 71 to ensure that the line connecting the right side of the outer circumference of the adjusting roller 71 and the center of the diaphragm gap remains vertical.

[0077] In this embodiment, two mounting shafts 742 are respectively provided on the inner walls of both sides of the coating rack 10. The two mounting shafts 742 correspond to two roller cylinders 74 respectively. The mounting end of the roller cylinder 74 is rotatably connected to the end of the corresponding mounting shaft 742 through the first fisheye connector 741. The output end of the roller cylinder 74 is rotatably connected to the inner side of the corresponding roller adjusting plate 73 through the second fisheye connector 743.

[0078] The air-float roller mechanism 80 includes an air-float roller 81 with a fan-shaped cross-section, a rotating shaft 82, a reducer 83, and a handwheel 84. Air inlet pipes 811 are provided at both ends of the air-float roller 81, communicating with the interior of the air-float roller 81 and used to connect to an air supply device. Several air outlets are evenly distributed on the outer circumference of the air-float roller 81, communicating with the interior of the air-float roller 81. The number, size, and shape of the air outlets can be set according to actual conditions. High-speed compressed air can be introduced into the air-float roller 81 through the air supply device via the air inlet pipes 811. The compressed air can then be blown out through the air outlets. The compressed air blowing out from the air outlets can suspend and support the diaphragm that passes over the outer circumference of the air-float roller 81, thus avoiding contact with the diaphragm. A rotating shaft 82 is located on one side of the air-bearing roller 81 and connected to it. One end of the rotating shaft 82 is connected to the output end of the reducer 83, and the other end is mounted on a rotating shaft bearing seat 822. The reducer 83 and the rotating shaft bearing seat 822 are respectively mounted on the tops of two support columns 85. A handwheel 84 is connected to the input end of the reducer 83. The rotating shaft 82 provides mounting support for the air-bearing roller 81, and the rotating shaft bearing seat 822 provides rotational support for the rotating shaft 82. By rotating the handwheel 84, the reducer 83 can drive the rotating shaft 82 to rotate, thereby driving the air-bearing roller 81 to rotate. This allows for adjustment of the angle of the air-bearing roller 81, ensuring that the diaphragm between the air-bearing roller 81 and the adjusting roller 71 is in a vertical position.

[0079] It is understandable that the air inlet pipe 811 may be provided at one of the two ends of the air flotation roller 81.

[0080] In this embodiment, two air flotation roller connecting plates 821 are sleeved on the outer periphery of the rotating shaft 82 and are arranged at a front-to-back interval. The two ends of the air flotation roller 81 are respectively connected to one end of the two air flotation roller connecting plates 821 through two L-shaped air flotation roller mounting seats 812.

[0081] Second Embodiment

[0082] Please refer to Figures 20 to 22 In this embodiment, the unwinding device 1, drying oven 3, traction device 4, winding device 5, and coating rack 10, B-side multi-roller transfer coating mechanism 30, supporting roller mechanism 50, arc roller mechanism 60, adjusting roller mechanism 70 and air flotation roller mechanism 80 of the multi-roller transfer double-sided coating device 2 are the same as those in the first embodiment, and the same parts will not be described again here.

[0083] The A-side multi-roller transfer coating mechanism 20 of the multi-roller transfer double-sided coating device 2 in this embodiment differs from that in the first embodiment. Specifically, the A-side multi-roller transfer coating mechanism 20 in this embodiment does not include the transfer roller 23, two transfer roller bearing seats 231, two transfer roller mounting blocks 232, and transfer roller drive assembly 26. The A-side multi-roller transfer coating mechanism 20 includes an A-side fabric box assembly 21, an A-side gravure roller 22, and an A-side coating roller 24. The A-side fabric box assembly 21, the A-side gravure roller 22, and the A-side coating roller 24 are arranged sequentially from left to right. The two ends of the A-side fabric box assembly 21 are respectively positioned on two... On one A-sheet box mounting base 211, two A-sheet box mounting bases 211 are respectively set on the top of two A-sheet box mounting blocks 212, and two A-sheet box mounting blocks 212 are respectively set on the top of two first coating bases 11. The A-side gravure roller 22 is partially housed in the material groove 2131 of the A-sheet box assembly 21, and both ends of the A-side gravure roller 22 are respectively set on two A-side gravure roller bearing seats 221. The two A-side gravure roller bearing seats 22 are respectively set on the top of two A-sheet box mounting blocks 212, and one end of the A-side gravure roller 22 is connected to the A-side gravure roller drive assembly 25. The A-side coating roller 24 is the same size as the B-side coating roller 33 and is arranged to face each other from left to right. A number of A-side protrusions are evenly distributed on the outer circumferential surface of the A-side coating roller 24. The A-side protrusions are in contact with the outer circumferential surface of the A-side gravure roller 22 and have the diaphragm gap between them and the B-side protrusions. The size and distribution spacing of the A-side protrusions are the same as those of the B-side protrusions. The two ends of the A-side coating roller 24 are respectively mounted on two A-side coating roller bearing seats 241. The two A-side coating roller bearing seats 241 correspond to two A-side gravure roller bearing seats 221 respectively. The two A-side coating roller bearing seats 241 are respectively mounted on the top of two A-side coating roller mounting blocks 242. The two A-side coating roller mounting blocks 242 are respectively mounted on the top of two first coating bases 11. One end of the A-side coating roller 24 is connected to the A-side coating roller drive assembly 27. The A-side gravure roller assembly 21, A-side gravure roller 22, A-side coating roller 24, two A-side gravure roller mounting bases 211, two A-side gravure roller mounting blocks 212, two A-side coating roller bearing seats 241, two A-side coating roller mounting blocks 242, A-side gravure roller drive assembly 25, and A-side coating roller drive assembly 27 are the same as in the first embodiment, and will not be described again here.

[0084] With the above structure, in practical application, the diaphragm passes through the diaphragm gap, and the A-side of the diaphragm contacts the A-side protrusion of the A-side multi-roller transfer coating mechanism 20, while the B-side of the diaphragm contacts the B-side protrusion of the B-side multi-roller transfer coating mechanism 30. The A-side gravure roller drive assembly 25 drives the A-side gravure roller 22 to rotate, the A-side coating roller drive assembly 27 drives the A-side coating roller 24 to rotate, the B-side gravure roller drive assembly 34 drives the B-side gravure roller 32 to rotate, and the B-side coating roller drive assembly 35 drives the B-side coating roller 33 to rotate. The rotation directions of the A-side coating roller 24 and the B-side coating roller 33 are opposite, as are the rotation directions of the A-side gravure roller 22 and the A-side coating roller 24. The rotation directions of roller 32 and B-side coating roller 33 are opposite. The rotation of the A-side gravure roller 22 carries the slurry from the material trough 2131 of the A-side fabric box assembly 21 and transfers it to several A-side protrusions on the A-side coating roller 24. Similarly, the rotation of the B-side gravure roller 32 carries the slurry from the material trough 2131 of the B-side fabric box assembly 31 and transfers it to several B-side protrusions on the B-side coating roller 33. Because the A-side coating roller 24 and B-side coating roller 33 rotate in opposite directions, the slurry can be coated onto the A-side and B-side surfaces of the diaphragm respectively through the A-side and B-side protrusions to form A-side dot-coated coatings and B-side dot-coated coatings. This embodiment achieves the same technical effect as the first embodiment.

[0085] Furthermore, two A-side fabric box mounting blocks 212 are slidably disposed on the top ends of the two first coating bases 11, and two A-side coating roller mounting blocks 242 are fixedly disposed on the top ends of the two first coating bases 11. Two A-side gap adjustment components 28c are respectively provided between the two A-side gravure roller bearing seats 221 and the two A-side coating roller bearing seats 241. Two first adjustment cylinders 29 are respectively provided on the outer side of the two first coating bases 11. The output end of one of the first adjustment cylinders 29 is connected to one of the A-side fabric box mounting bases 211 and one of the A-side fabric box mounting blocks 212 through an L-shaped first adjustment block 291, and the output end of the other first adjustment cylinder 29 is connected to the other A-side fabric box mounting base 211 and the other A-side fabric box mounting block 212 through an L-shaped first adjustment block 291. The two first adjustment cylinders 29 are the same as the two first adjustment cylinders 29 in the first embodiment, and will not be described again here. By setting two A-side gap adjustment components 28c and two first adjustment cylinders 29, the contact force between the outer peripheral surface of the A-side gravure roller 22 and the outer peripheral surface of the A-side coating roller 24 can be adjusted, thereby adjusting the amount of slurry transferred from the A-side gravure roller 22 to the A-side coating roller 24.

[0086] The structure of the A-side gap adjustment assembly 28c is the same as that of the first gap adjustment assembly 28a in the first embodiment. It also includes a driving component, an adjustment mounting plate 283, a lead screw 284, a nut 285, a connecting seat 286, a T-shaped adjustment flat block 287, and a T-shaped adjustment wedge 288. The driving component also includes an adjustment rod 281 and a gap adjustment seat 282. The only difference between the A-side gap adjustment assembly 28c and the first gap adjustment assembly 28a is that the adjustment mounting plate 283 of the A-side gap adjustment assembly 28c is located at the top of the corresponding A-side coating roller bearing seat 241, the adjustment flat block 287 of the A-side gap adjustment assembly 28c is located at the end of the corresponding A-side coating roller bearing seat 241 near the A-side gravure roller 22, and the adjustment wedge 288 of the A-side gap adjustment assembly 28c is located at the end of the corresponding A-side gravure roller bearing seat 221 near the A-side coating roller 24.

[0087] In practical applications, for example, when it is necessary to increase the contact force between the outer peripheral surfaces of the A-side gravure roller 22 and the A-side coating roller 24, first rotate the handles 2811 of the two A-side gap adjustment components 28c. This will cause the corresponding lead screw 284 to rotate via the corresponding adjustment rod 281, which in turn will cause the corresponding nut 285 and connecting seat 286 to move downwards. At this time, the inclined surface of the connecting seat 286 and the inclined surface 2881 of the corresponding adjusting wedge 288 separate. Then, the output ends of the two first adjusting cylinders 29 retract, thereby allowing the two first... The adjusting cylinder 29 can drive the corresponding A-face gravure roller mounting base 211 and A-face gravure roller mounting block 212 to move to the right, thereby driving the A-face gravure roller assembly 21, A-face gravure roller 22, two A-face gravure roller bearing seats 221, and the adjusting wedges 288 of the two A-face gap adjusting components 28c to move to the right until the wedge slope 2881 of the adjusting wedges 288 of the two A-face gap adjusting components 28c and the connecting seat slope of the corresponding connecting seat 286 are engaged. In this way, the contact force between the outer peripheral surface of the A-face gravure roller 22 and the outer peripheral surface of the A-face coating roller 24 is increased. When it is necessary to reduce the contact force between the outer peripheral surfaces of the A-side gravure roller 22 and the A-side coating roller 24, first rotate the handles 2811 of the two A-side gap adjustment components 28c. This will cause the corresponding lead screw 284 to rotate via the corresponding adjustment rod 281, which in turn will cause the corresponding nut 285 and connecting seat 286 to move upward. At this time, under the action of the connecting seat inclined surface of the connecting seat 286 and the wedge inclined surface 2881 of the corresponding adjusting wedge 288, the connecting seat 286 can push the corresponding adjusting wedge 288 and the corresponding A-side gravure roller bearing seat 221 to move to the left. This will cause the A-side gravure roller 22, the A-side fabric box assembly 21, the two A-side fabric box mounting seats 211, and the two A-side fabric box mounting blocks 212 to move to the left, which will cause the output ends of the two first adjustment cylinders 29 to extend. In this way, the contact force between the outer peripheral surfaces of the A-side gravure roller 22 and the A-side coating roller 24 is reduced.

[0088] Two B-side fabric box mounting blocks 312 are slidably mounted on the tops of the two second coating bases 12, and two B-side coating roller mounting blocks 332 are fixedly mounted on the tops of the two second coating bases 12. Two B-side gap adjustment components 36b are respectively provided between the two B-side gravure roller bearing seats 321 and the two B-side coating roller bearing seats 331. Two second adjustment cylinders 37 are respectively provided on the outer sides of the two second coating bases 12. The output end of one second adjustment cylinder 37 is connected to one B-side fabric box mounting base 311 and one B-side fabric box mounting block 312 via an L-shaped second adjustment block 371, and the output end of the other second adjustment cylinder 37 is connected to the other B-side fabric box mounting base 311 and the other B-side fabric box mounting block 312 via an L-shaped second adjustment block 371. The two B-side gap adjustment components 36b are the same as the two third gap adjustment components 36a in the first embodiment, and the two second adjustment cylinders 37 are the same as the two second adjustment cylinders 37 in the first embodiment, and will not be described again here. By using two B-side gap adjustment components 36b and two second adjustment cylinders 37, the contact force between the outer peripheral surface of the B-side gravure roller 32 and the B-side protrusions of the B-side coating roller 33 can be adjusted, thereby adjusting the amount of slurry transferred from the B-side gravure roller 32 to the B-side protrusions of the B-side coating roller 34.

[0089] In this embodiment, the A-side coating roller 24 is a steel roller, and the B-side coating roller 33 is a rubber roller.

[0090] In the first replacement scheme, the A-side coating roller 24 is a rubber roller, and the B-side coating roller 33 is a steel roller.

[0091] In the second alternative, both the A-side coating roller 24 and the B-side coating roller 33 are steel rollers.

[0092] In the third alternative, both the A-side coating roller 24 and the B-side coating roller 33 are rubber rollers.

[0093] 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 double-sided dot-coating diaphragm coating device, comprising an unwinding device, an oven, a traction device, and a winding device arranged sequentially from left to right along the diaphragm's travel path, wherein the unwinding device is used to unwind the diaphragm, the traction device is used to traction the diaphragm, and the winding device is used to wind the diaphragm, characterized in that, It also includes a multi-roller transfer double-sided dot coating device disposed between the unwinding device and the oven along the travel path of the diaphragm. The multi-roller transfer double-sided dot coating device is used to coat the slurry onto the A-side and B-side of the diaphragm to form a dot coating layer on the A-side and a dot coating layer on the B-side. The multi-roller transfer double-sided dot coating device includes a coating rack and an A-side multi-roller transfer dot coating mechanism and a B-side multi-roller transfer dot coating mechanism disposed at the top of the coating rack. The A-side multi-roller transfer dot coating mechanism and the B-side multi-roller transfer dot coating mechanism are arranged opposite each other from left to right, and there is a diaphragm gap between them for the diaphragm to pass through. The oven is used to heat and dry the A-side and B-side dot coating layers of the diaphragm.

2. The double-sided dot-coating diaphragm coating equipment according to claim 1, characterized in that, The top of the coating rack has two first coating bases slidably arranged in a front-to-back orientation and two second coating bases fixedly arranged in a front-to-back orientation. The A-side multi-roller transfer coating mechanism is located at the top of the two first coating bases, and the B-side multi-roller transfer coating mechanism is located at the top of the two second coating bases. The multi-roller transfer double-sided coating device also includes two moving cylinders, which are respectively located on the outside of the two second coating bases, and the output ends of the two moving cylinders are respectively connected to the outside of the two first coating bases.

3. The double-sided dot-coating diaphragm coating equipment according to claim 2, characterized in that, The B-side multi-roller transfer coating mechanism includes a B-side fabric box assembly, a B-side gravure roller, and a B-side coating roller arranged sequentially from right to left. The two ends of the B-side fabric box assembly are respectively mounted on two B-side fabric box mounting seats. The two B-side fabric box mounting seats are respectively mounted on the tops of two B-side fabric box mounting blocks. The two B-side fabric box mounting blocks are respectively mounted on the tops of two second coating bases. The B-side gravure roller is partially housed within the material trough of the B-side fabric box assembly, and the two ends of the B-side gravure roller are respectively mounted on two B-side gravure roller bearing seats. The two B-side gravure roller bearing seats are respectively mounted on... At the top of the two B-side fabric box mounting blocks, one end of the B-side gravure roller is connected to the B-side gravure roller drive assembly. A plurality of B-side protrusions are evenly distributed on the outer circumferential surface of the B-side coating roller, and these protrusions contact the outer circumferential surface of the B-side gravure roller. Both ends of the B-side coating roller are respectively mounted on two B-side coating roller bearing seats, which are respectively mounted at the top of the two B-side coating roller mounting blocks. The two B-side coating roller mounting blocks are respectively mounted at the top of two second coating bases. One end of the B-side coating roller is connected to the B-side coating roller drive assembly.

4. The double-sided dot-coating diaphragm coating equipment according to claim 3, characterized in that, The A-side multi-roller transfer coating mechanism includes, from left to right, an A-side fabric box assembly, an A-side gravure roller, a transfer roller, and an A-side coating roller. The two ends of the A-side fabric box assembly are respectively mounted on two A-side fabric box mounting seats, which are respectively mounted on the tops of two A-side fabric box mounting blocks. The two A-side fabric box mounting blocks are respectively mounted on the tops of two first coating bases. The A-side gravure roller is partially housed within the material trough of the A-side fabric box assembly, and its two ends are respectively mounted on two A-side gravure roller bearing seats, which are respectively mounted on the tops of two A-side fabric box mounting blocks. One end of the A-side gravure roller is connected to an A-side gravure roller drive assembly. The outer circumferential surface of the transfer roller contacts the outer circumferential surface of the A-side gravure roller, and its two ends are respectively mounted on two transfer roller bearing seats, which are respectively mounted on two... The top of the transfer roller mounting block is located at the top of two first coating bases. One end of the transfer roller is connected to the transfer roller drive assembly. The A-side coating roller is the same size as the B-side coating roller and is positioned opposite to the B-side coating roller. The outer circumferential surface of the A-side coating roller is evenly distributed with several A-side protrusions. The A-side protrusions are in contact with the outer circumferential surface of the transfer roller and have the diaphragm gap between them and the B-side protrusions. The size and distribution spacing of the A-side protrusions are the same as those of the B-side protrusions. The two ends of the A-side coating roller are respectively mounted on two A-side coating roller bearing seats. The two A-side coating roller bearing seats are respectively mounted on the top of two A-side coating roller mounting blocks. The two A-side coating roller mounting blocks are respectively mounted on the top of two first coating bases. One end of the A-side coating roller is connected to the A-side coating roller drive assembly.

5. The double-sided dot-coating diaphragm coating equipment according to claim 4, characterized in that, The A-side fabric box assembly and the B-side fabric box assembly are arranged symmetrically from left to right. Each of the A-side and B-side fabric box assemblies includes a material box and two material box cylinders. The material box, A-side gravure roller, transfer roller, and A-side coating roller of the A-side fabric box assembly are arranged sequentially from left to right. The material box, B-side gravure roller, and B-side coating roller of the B-side fabric box assembly are arranged sequentially from right to left. One side of the material box is provided with the material trough, and the other side of the material box is connected to a feed pipe communicating with the material trough and a main shaft. The two ends of the main shaft are respectively set on two material box bases. The two material box bases of the A-side fabric box assembly are slidably set inside the two A-side fabric box mounting seats. The two material box bases of the B-side fabric box assembly are slidably set inside the two B-side fabric box mounting seats. The two material box cylinders of the A-side fabric box assembly are respectively set inside the two first coating bases. The two material box cylinders of the B-side fabric box assembly are respectively set inside the two second coating bases. The output ends of the two material box cylinders are respectively connected to the two material box bases.

6. The double-sided dot-coating diaphragm coating equipment according to claim 4, characterized in that, Two A-side fabric box mounting blocks and two transfer roller mounting blocks are slidably mounted on the top of two first coating bases, and two A-side coating roller mounting blocks are fixedly mounted on the top of two first coating bases. Two first gap adjustment components are provided between the two A-side gravure roller bearing seats and the two transfer roller bearing seats, and two second gap adjustment components are provided between the two transfer roller bearing seats and the two A-side coating roller bearing seats. Two first adjustment cylinders are provided on the outer side of the two first coating bases. The output end of one of the first adjustment cylinders is connected to one A-side fabric box mounting base and one A-side fabric box mounting block, and the output end of the other first adjustment cylinder is connected to the other A-side fabric box mounting base and the other A-side fabric box mounting block. Two B-side fabric box mounting blocks are slidably mounted on the tops of the two second coating bases, and two B-side coating roller mounting blocks are fixedly mounted on the tops of the two second coating bases. Two third gap adjustment components are respectively provided between the two B-side gravure roller bearing seats and the two B-side coating roller bearing seats. Two second adjustment cylinders are respectively provided on the outer side of the two second coating bases. The output end of one of the second adjustment cylinders is connected to one of the B-side fabric box mounting seats and one of the B-side fabric box mounting blocks, and the output end of the other second adjustment cylinder is connected to the other B-side fabric box mounting seat and the other B-side fabric box mounting block.

7. The double-sided dot-coating diaphragm coating equipment according to claim 6, characterized in that, Two first gap adjustment components are arranged side by side with two second gap adjustment components, and two third gap adjustment components are arranged symmetrically with two second gap adjustment components. Each of the first gap adjustment components, the second gap adjustment components, and the third gap adjustment components includes a driving component, an adjustment mounting plate, a lead screw, a nut, a connecting seat, an adjustment flat block, and an adjustment wedge block. The driving component is disposed at the top of the adjustment mounting plate, the adjustment mounting plate of the first gap adjustment component is disposed at the top of the corresponding transfer roller bearing seat, the adjustment mounting plate of the second gap adjustment component is disposed at the top of the corresponding A-side coating roller bearing seat, and the adjustment mounting plate of the third gap adjustment component is disposed at the top of the corresponding B-side coating roller bearing seat. The lead screw of the first gap adjustment component is located between the corresponding A-side gravure roller bearing seat and the corresponding transfer roller bearing seat; the lead screw of the second gap adjustment component is located between the corresponding transfer roller bearing seat and the corresponding A-side coating roller bearing seat; and the lead screw of the third gap adjustment component is located between the corresponding B-side gravure roller bearing seat and the corresponding B-side coating roller bearing seat. One end of the lead screw passes through the through hole of the adjustment mounting plate and is connected to the drive component. The lead screw is rotatably connected to the through hole of the adjustment mounting plate, and the other end of the lead screw extends downward. The nut is threaded into the lead screw, and the connecting seat is sleeved on the outer circumference of the nut. One end of the connecting seat is slidably engaged with the groove of the adjusting flat block, and the other end of the connecting seat is provided with a connecting seat inclined surface. The connecting seat inclined surface engages with the wedge inclined surface of the adjusting wedge block. The adjusting flat block of the first gap adjusting assembly is located at the end of the corresponding transfer roller bearing seat near the A-side gravure roller. The adjusting wedge block of the first gap adjusting assembly is located at the end of the corresponding A-side gravure roller bearing seat near the transfer roller. The adjusting flat block of the second gap adjusting assembly is located at the end of the corresponding A-side coating roller bearing seat near the transfer roller. The adjusting wedge block of the second gap adjusting assembly is located at the end of the corresponding transfer roller bearing seat near the A-side coating roller. The adjusting flat block of the third gap adjusting assembly is located at the end of the corresponding B-side coating roller bearing seat near the B-side gravure roller. The adjusting wedge block of the third gap adjusting assembly is located at the end of the corresponding B-side gravure roller bearing seat near the B-side coating roller.

8. The double-sided dot-coating diaphragm coating equipment according to claim 4, characterized in that, The transfer roller drive assembly, the A-side coating roller drive assembly, and the B-side coating roller drive assembly all include drive motors. The drive motor of the transfer roller drive assembly is located outside one of the transfer roller bearing seats, and the output end of the drive motor is connected to one end of the transfer roller. The drive motor of the A-side coating roller drive assembly is located outside one of the A-side coating roller bearing seats, and the output end of the drive motor is connected to one end of the A-side coating roller. The drive motor of the B-side coating roller drive assembly is located outside one of the B-side coating roller bearing seats, and the output end of the drive motor is connected to one end of the B-side coating roller. Both the A-side gravure roller drive assembly and the B-side gravure roller drive assembly include a gravure roller motor and a synchronous belt module. The gravure roller motor of the A-side gravure roller drive assembly is located on the outside of one of the A-side fabric box mounting bases, and the gravure roller motor of the B-side gravure roller drive assembly is located on the outside of one of the B-side fabric box mounting bases. The output end of the gravure roller motor of the A-side gravure roller drive assembly is connected to one end of the A-side gravure roller through the synchronous belt module of the A-side gravure roller drive assembly, and the output end of the gravure roller motor of the B-side gravure roller drive assembly is connected to one end of the B-side gravure roller through the synchronous belt module of the B-side gravure roller drive assembly.

9. The double-sided dot-coating diaphragm coating equipment according to claim 4, characterized in that, Both the transfer roller and the B-side coating roller are rubber rollers, while the A-side coating roller is a steel roller.

10. The double-sided dot-coating diaphragm coating equipment according to claim 3, characterized in that, The A-side multi-roller transfer dot coating mechanism includes, from left to right, an A-side fabric box assembly, an A-side gravure roller, and an A-side coating roller. The two ends of the A-side fabric box assembly are respectively mounted on two A-side fabric box mounting seats, which are respectively positioned on the tops of two A-side fabric box mounting blocks. The two A-side fabric box mounting blocks are respectively positioned on the tops of two first coating bases. The A-side gravure roller is partially housed within the material trough of the A-side fabric box assembly, and its two ends are respectively mounted on two A-side gravure roller bearing seats, which are respectively positioned on the tops of two A-side fabric box mounting blocks. One end of the A-side gravure roller is connected to an A-side gravure roller drive assembly. The A-side coating roller... The size of the A-side coating roller is the same as that of the B-side coating roller and is arranged to face the B-side coating roller from left to right. The outer circumferential surface of the A-side coating roller is evenly distributed with a number of A-side protrusions. The A-side protrusions are in contact with the outer circumferential surface of the A-side gravure roller and have the diaphragm gap between them and the B-side protrusions. The size and distribution spacing of the A-side protrusions are the same as those of the B-side protrusions. The two ends of the A-side coating roller are respectively mounted on two A-side coating roller bearing seats. The two A-side coating roller bearing seats are respectively mounted on the top of two A-side coating roller mounting blocks. The two A-side coating roller mounting blocks are respectively mounted on the top of two first coating bases. One end of the A-side coating roller is connected to the A-side coating roller drive assembly.

11. The double-sided dot-coating diaphragm coating equipment according to claim 10, characterized in that, Two A-side fabric box mounting blocks are slidably mounted on the top of two first coating bases, and two A-side coating roller mounting blocks are fixedly mounted on the top of two first coating bases. Two A-side gap adjustment components are respectively provided between the two A-side gravure roller bearing seats and the two A-side coating roller bearing seats. Two first adjustment cylinders are respectively provided on the outer side of the two first coating bases. The output end of one of the first adjustment cylinders is connected to one of the A-side fabric box mounting bases and one of the A-side fabric box mounting blocks, and the output end of the other first adjustment cylinder is connected to the other A-side fabric box mounting base and the other A-side fabric box mounting block. Two B-side fabric box mounting blocks are slidably mounted on the tops of the two second coating bases, and two B-side coating roller mounting blocks are fixedly mounted on the tops of the two second coating bases. Two B-side gap adjustment components are respectively provided between the two B-side gravure roller bearing seats and the two B-side coating roller bearing seats. Two second adjustment cylinders are respectively provided on the outer side of the two second coating bases. The output end of one of the second adjustment cylinders is connected to one of the B-side fabric box mounting bases and one of the B-side fabric box mounting blocks, and the output end of the other second adjustment cylinder is connected to the other B-side fabric box mounting base and the other B-side fabric box mounting block.

12. The double-sided dot-coating diaphragm coating equipment according to claim 10, characterized in that, The coating roller for side A is a steel roller or a rubber roller, and the coating roller for side B is a rubber roller or a steel roller, or... Both the A-side coating roller and the B-side coating roller are steel rollers or rubber rollers.

13. The double-sided dot-coating diaphragm coating equipment according to claim 1, characterized in that, The multi-roller transfer double-sided dot coating device also includes a supporting roller mechanism, an arc roller mechanism, and an adjusting roller mechanism. The supporting roller mechanism, the arc roller mechanism, and the adjusting roller mechanism are arranged sequentially from left to right in the coating frame along the travel path of the diaphragm. The adjusting roller mechanism is located below the gap of the diaphragm. The supporting roller mechanism includes a supporting roller, the two ends of which are rotatably disposed on the inner sides of two supporting roller mounting plates, and the two supporting roller mounting plates are respectively disposed on the inner walls of both sides of the coating rack. The arc-shaped roller mechanism includes an arc-shaped roller and an arc-shaped roller drive assembly. The two ends of the arc-shaped roller are rotatably disposed on the inner sides of two arc-shaped roller mounting plates. The two arc-shaped roller mounting plates are respectively disposed on the inner walls of both sides of the coating rack. The arc-shaped roller drive assembly is disposed on the inner side of one of the arc-shaped roller mounting plates and connected to one end of the arc-shaped roller. The adjusting roller mechanism includes an adjusting roller, two screw slides, and two roller cylinders. The adjusting roller is located below the diaphragm gap. Both ends of the adjusting roller are rotatably mounted on the two screw slides. The line connecting the right side of the outer circumference of the adjusting roller and the center of the diaphragm gap is vertical. The two screw slides are respectively mounted on the inner sides of the two roller adjusting plates. The two roller adjusting plates are slidably mounted on the inner walls of both sides of the coating rack. The mounting ends of the two roller cylinders are rotatably connected to the inner walls of both sides of the coating rack, and the output ends of the two roller cylinders are rotatably connected to the two roller adjusting plates.

14. The double-sided dot-coating diaphragm coating equipment according to claim 13, characterized in that, It also includes an air flotation roller mechanism, which is located above the diaphragm gap. The two ends of the air flotation roller mechanism are respectively set at the top of two support columns, and the coating rack is located between the two support columns. The air-float roller mechanism includes an air-float roller with a fan-shaped cross-section, a rotating shaft, a reducer, and a handwheel. At least one end of the air-float roller is provided with an air inlet pipe, which communicates with the interior of the air-float roller. Several air outlet holes are evenly distributed on the outer circumference of the air-float roller. The rotating shaft is located on one side of the air-float roller and connected to the air-float roller. One end of the rotating shaft is connected to the output end of the reducer, and the other end of the rotating shaft is mounted on a rotating shaft bearing seat. The reducer and the rotating shaft bearing seat are respectively mounted on the top of two support columns. The handwheel is connected to the input end of the reducer.

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