Step roller, climbing mechanism and coating equipment

Abstract

The utility model discloses a step roll, climbing mechanism and coating equipment, the step roll comprises a steel roll shaft and a composite adhesive structure, the composite adhesive structure is wrapped on the roll surface of the steel roll shaft and is connected with the roll surface of the steel roll shaft in a magnetic attraction mode, two ends of the composite adhesive structure are contacted with each other or a gap is arranged between the two ends of the composite adhesive structure, and the steel roll shaft is arranged on the steel roll shaft. One side, far away from the steel roller shaft, of the composite adhesive structure is provided with an avoiding position for avoiding a tab of a pole piece. According to the utility model, the remodeling time can be reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field, concretely relates to a step roller, climbing mechanism and coating equipment. BACKGROUND

[0002] In power and energy storage battery pole piece coating, usually adopt coating equipment to the pole piece is carried out zebra coating form, to get one out of four, one out of six, one out of eight, one out of twelve etc. The pole piece of specification, thereby improve production efficiency. One out of many pole piece exists one or more pole lug, in the coating process, pole lug is easy to shrink, for example, when the pole piece passes through the multiple over rollers of the climbing mechanism of coating equipment, it will lead to pole lug and over roller direct contact, thereby can be subjected to the roller pressure of over roller, pole lug is easy to appear crease or wrinkle etc. Situation under the roller pressure of over roller.

[0003] At present, the over roller of climbing mechanism generally adopts step roller, the step roller generally includes light shaft and the roller body that is sleeved at the outer periphery of light shaft, the both ends of light shaft are rotatably arranged in the two mounting holes of the climbing frame of climbing mechanism through two bearings respectively, one end of the light shaft of multiple step rollers is connected with the driving assembly of climbing mechanism, the outer peripheral surface of roller body is equipped with the avoidance site for avoiding the pole lug of pole piece, in actual application, the pole piece passes through the roller body of multiple step rollers, drives the light shaft and roller body of multiple step rollers to rotate through driving assembly, thereby can drive pole piece to move, thereby can realize conveying pole piece, can avoid the pole lug of pole piece through the avoidance site of step roller, thereby can avoid direct contact with step roller, thereby can avoid the roller pressure of step roller to pole lug, so as to prevent pole lug to appear crease or wrinkle etc. Situation.

[0004] When needing to coat other specifications of pole piece, then need to change type, namely need to detach roller body and change other specifications of roller body, and the step roller of above-mentioned structure, because the both ends of light shaft of step roller are rotatably arranged in the two mounting holes of climbing frame through two bearings respectively, thus when changing type, need to first detach the two bearings of light shaft from the two mounting holes of climbing frame, then detach light shaft and roller body from climbing frame, then detach the two bearings from light shaft, then detach roller body from light shaft and change other specifications of roller body, then the two bearings are assembled together with light shaft again, then one of the two bearings is reinstalled in the corresponding mounting hole, then carry out the operation of leveling to ensure the levelness of light shaft and roller body as a whole, then the other bearing is reinstalled in the corresponding mounting hole, so as to complete changing type. The process needs to go through the steps of detaching bearings, changing roller body and leveling, and the changing type time is relatively long, which reduces production efficiency. SUMMARY

[0005] In order to overcome the defects of the prior art, the utility model provides a step roller, climbing mechanism and coating equipment, which can reduce the changing type time and improve the production efficiency.

[0006] The utility model discloses the technical scheme that solves its technical problem adopts:

[0007] The utility model discloses a step roll, including steel roll axle and composite glue structure, the composite glue structure is wrapped in the roll face of steel roll axle and is connected with the roll face magnetic attraction of steel roll axle, the both ends of composite glue structure contact each other or the both ends of composite glue structure have the gap, the side of composite glue structure away from steel roll axle has the avoiding position for avoiding the pole lug of pole piece.

[0008] As a preferred technical scheme, the composite glue structure includes a flexible magnetic sheet and two foam pads. The flexible magnetic sheet is wrapped around the roll face of the steel roll shaft and magnetically connected with the steel roll shaft. The two ends of the flexible magnetic sheet contact each other or have a gap between them. The two foam pads are respectively arranged on the side of the flexible magnetic sheet away from the steel roll shaft and are spaced apart along the axial direction of the steel roll shaft. The two ends of the foam pads are flush with the two ends of the flexible magnetic sheet. The side of the two foam pads close to each other and the flexible magnetic sheet form the avoiding position.

[0009] As a preferred technical scheme, the side of the flexible magnetic sheet away from the steel roll shaft is provided with an anti-static non-magnetic layer. The two foam pads are respectively arranged on the side of the anti-static non-magnetic layer away from the flexible magnetic sheet.

[0010] As a preferred technical scheme, the side of the foam pad close to the flexible magnetic sheet is provided with a glue layer. The two foam pads are respectively arranged on the side of the anti-static non-magnetic layer away from the flexible magnetic sheet through the respective glue layers.

[0011] As a preferred technical scheme, the flexible magnetic sheet is a rubber magnetic sheet, and the foam pad is a polyester ammonia foam pad.

[0012] As a preferred technical scheme, the roll face of the steel roll shaft is provided with a scale that extends along the axial direction of the steel roll shaft. The two ends of the scale are respectively aligned with the two ends of the roll face of the steel roll shaft. The two sides of the flexible magnetic sheet are respectively aligned with two scales of the scale.

[0013] As a preferred technical scheme, the gap between the two ends of the composite glue structure is not greater than 1 millimeter in width.

[0014] The utility model discloses a second aspect provides a kind of climbing mechanism, including climbing frame and drive assembly, still including the multiple step rollers of the above technical solution, multiple the step roller is spaced apart in the climbing frame along the length direction of the climbing frame, the both ends of the steel roller axle of the step roller are rotatably arranged in the two mounting holes of the two sides inner wall of climbing frame respectively, one end of the steel roller axle of multiple the step roller is connected with the drive assembly, the drive assembly is used to drive the rotation of the steel roller axle of multiple the step roller.

[0015] The utility model discloses a third aspect provides a kind of coating equipment, including unwinding mechanism, A face coating mechanism, first oven, B face coating mechanism, climbing mechanism, second oven and winding mechanism, the winding mechanism, unwinding mechanism, A face coating mechanism, first oven and B face coating mechanism are sequentially arranged from left to right, the second oven is located above the first oven, the climbing mechanism is located above B face coating mechanism, the climbing mechanism includes climbing frame and drive assembly, one end of the climbing frame is located above the B face coating mechanism, the other end of the climbing frame is located in the right of the second oven, the climbing mechanism still includes the multiple step rollers of the above technical solution, multiple step rollers are spaced apart in the climbing frame along the length direction of the climbing frame, the both ends of the steel roller axle of the step roller are rotatably arranged in the two mounting holes of the two sides inner wall of climbing frame respectively, one end of the steel roller axle of multiple the step roller is connected with the drive assembly, the drive assembly is used to drive the rotation of the steel roller axle of multiple the step roller.

[0016] As a preferred technical solution, the coating equipment further includes a discharge deviation correction mechanism, a traction mechanism, a thickness gauge and a process deviation correction mechanism sequentially arranged between the first oven and the B face coating mechanism, and the discharge deviation correction mechanism, the traction mechanism, the thickness gauge and the process deviation correction mechanism are all located below the climbing mechanism.

[0017] The utility model discloses a beneficial effect is: the step roller of the utility model includes steel roller axle and composite glue structure, avoids the pole ear of pole piece through the avoiding site of composite glue structure, can avoid the step roller roll pressure pole ear, to prevent the pole ear to appear crease or wrinkle etc. Situation, through the roll surface of steel roller axle and the roll surface magnetic attraction connection of composite glue structure with steel roller axle, so that the quick detach and quick install of composite glue structure can be realized, need not to carry out the disassembly bearing, the horizontal step of beating, so that the change type can be completed in short time, reduces the change type time, improves production efficiency, simultaneously, the composite glue structure of dismounting can be reused, saves change type cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further described below in connection with the drawings and examples.

[0019] Figure 1is a structural schematic view of a coating equipment according to an embodiment of the utility model;

[0020] Figure 2 is Figure 1 is a structural schematic view of a climbing mechanism of the coating equipment shown in the figure;

[0021] Figure 3 is Figure 2 is a structural schematic view of a step roller of the climbing mechanism shown in the figure;

[0022] Figure 4 is Figure 2 is an exploded schematic view of the step roller shown in the figure;

[0023] Figure 5 is Figure 2 is a structural schematic view of a composite adhesive structure of the step roller shown in the figure after unfolding.

[0024] Reference signs:

[0025] 10, first oven; 20, discharge deviation correction mechanism; 30, traction mechanism; 40, thickness gauge; 50, process deviation correction mechanism, 60, B face coating mechanism; 70, climbing mechanism; 71, climbing frame; 72, step roller; 721, steel roller shaft; 722, composite adhesive structure; 7221, flexible magnetic sheet; 7222, foam; 73, support column; 80, second oven. DETAILED DESCRIPTION

[0026] The utility model discloses a concept, specific structure and the technical effect produced will be clearly and completely described below in conjunction with the embodiment and the drawing, to fully understand the purpose, features and effects of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all embodiments, on the basis of the embodiment of the utility model, the other embodiments obtained by the skilled in the art without paying creative labor, all belong to the protection scope of the utility model. In addition, all the coupling / connection relations involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be formed by adding or reducing coupling auxiliary parts according to the specific implementation situation. The various technical features in the utility model creation can be interactively combined without mutual contradiction and conflict.

[0027] Please refer to Figure 1 , an embodiment of the utility model provides a kind of coating equipment, including unwinding mechanism (not shown in the figure), A face coating mechanism (not shown in the figure), first oven 10, B face coating mechanism 60, climbing mechanism 70, second oven 80 and winding mechanism (not shown in the figure).

[0028] The winding mechanism, the unwinding mechanism, the A-side coating mechanism, the first oven 10 and the B-side coating mechanism 60 are sequentially arranged from left to right. The second oven 80 is located above the first oven 10, and the climbing mechanism 70 is located above the B-side coating mechanism 60. In this embodiment, the first oven 10 is located in the equipment frame, and the second oven 80 and the climbing mechanism 70 are both arranged at the top end of the equipment frame. The equipment frame can provide support for the second oven 80 and the climbing mechanism 70. By arranging the second oven 80 above the first oven 10, the length of the coating equipment as a whole can be reduced. The unwinding mechanism is used to unwind the pole piece, the A-side coating mechanism is used to coat the conductive slurry to the front side of the pole piece to form a front side slurry layer, the first oven 10 is used to heat and dry the front side slurry layer of the pole piece, the B-side coating mechanism 60 is used to coat the conductive slurry to the back side of the pole piece to form a back side slurry layer, the climbing mechanism 70 is used to transport the pole piece, and the second oven 80 is used to heat and dry the back side slurry layer of the pole piece. The winding mechanism is used to wind the pole piece.

[0029] Further, the coating equipment further comprises a discharge deviation correction mechanism 20, a traction mechanism 30, a thickness gauge 40 and a process deviation correction mechanism 50 arranged sequentially between the first oven 10 and the B-side coating mechanism 60. The discharge deviation correction mechanism 20 is located outside the equipment frame, and the discharge deviation correction mechanism 20, the traction mechanism 30, the thickness gauge 40 and the process deviation correction mechanism 50 are all located below the climbing mechanism 70. The discharge deviation correction mechanism 20 is used to correct the pole piece after the front side slurry layer of the pole piece is heated and dried by the first oven 10, the traction mechanism 30 is used to pull the pole piece, the thickness gauge 40 is used to measure the thickness of the pole piece, and the process deviation correction mechanism 50 is used to correct the pole piece before the conductive slurry is coated to the back side of the pole piece by the B-side coating mechanism 60.

[0030] In combination Figure 2 As shown in the figure, the climbing mechanism 70 comprises an arc-shaped climbing frame 71, a driving assembly and a plurality of step rollers 72.

[0031] The bottom end of the climbing frame 71 is provided with a support column 73, and the support column 73 is arranged at the top end of the equipment frame. The climbing frame 71 can be supported by the support column 73. The number of support columns 73 can be arranged according to actual conditions. The climbing frame 71 is arranged in an upward inclination. One end of the climbing frame 71 is above the B-side coating mechanism 60, and the other end of the climbing frame 71 is located to the right of the second oven 80.

[0032] A plurality of step rollers 72 are arranged in the climbing frame 71 along the length direction of the climbing frame 71. The plurality of step rollers 72 form an arc-shaped path, so that the walking path of the pole piece is arc-shaped, facilitating the movement of the pole piece. It can be understood that the number of step rollers 72 can be arranged according to actual conditions.

[0033] In combination Figures 3 to 5As shown, the step roller 72 comprises a steel roller shaft 721 and a composite glue structure 722. The two ends of the steel roller shaft 721 are rotatably arranged in the two mounting holes of the two inner walls of the climbing frame 71 through two bearing seats respectively. One end of the steel roller shaft 721 of each of the plurality of step rollers 72 is connected with a driving assembly for driving the rotation of the steel roller shaft 721 of the plurality of step rollers 72. The driving assembly comprises a driving motor arranged on the outer wall of one side of the climbing frame 71 and a chain transmission module, the chain transmission module comprises a driving sprocket, a plurality of driven sprockets and a synchronous belt sleeved on the outer periphery of the driving sprocket and the plurality of driven sprockets, the driving sprocket is sleeved on the outer periphery of the output end of the driving motor, the plurality of driven sprockets correspond to the plurality of step rollers 72 one by one, and one end of the steel roller shaft 721 of the plurality of step rollers 72 respectively extends out of the corresponding mounting hole and is sleeved with the plurality of driven sprockets. The driving motor is used to drive the rotation of the driving sprocket, and under the action of the chain and the plurality of driven sprockets, the steel roller shaft 721 of the plurality of step rollers 72 can be driven to rotate.

[0034] The composite glue structure 722 is wrapped on the roller surface of the steel roller shaft 721 and is magnetically connected with the roller surface of the steel roller shaft 721, the two ends of the composite glue structure 722 are in contact with each other, the width of the composite glue structure 722 is less than the length of the roller surface of the steel roller shaft 721, and the composite glue structure 722 and the steel roller shaft 721 are magnetically connected, so that the composite glue structure 722 can be quickly disassembled and assembled. The side of the composite glue structure 722 away from the steel roller shaft 721 has an avoiding position for avoiding the lug of the pole piece. The rotation of the steel roller shaft 721 can drive the synchronous rotation of the composite glue structure 722.

[0035] Specifically, the composite glue structure 722 comprises a flexible magnetic sheet 7221 and two foams 7222. The flexible magnetic sheet 7221 is wrapped on the roller surface of the steel roller shaft 721 and is magnetically connected with the steel roller shaft 721. The two ends of the flexible magnetic sheet 7221 are in contact with each other, and the two foams 7222 are respectively arranged on the side away from the steel roller shaft 721 of the flexible magnetic sheet 7221 and are spaced apart along the axial direction of the steel roller shaft 721, the two ends of the foam 7222 are flush with the two ends of the flexible magnetic sheet 7221 respectively, and the sides away from each other of the two foams 7222 are flush with the two sides of the flexible magnetic sheet 7221 respectively. The rotation of the steel roller shaft 721 can drive the synchronous rotation of the flexible magnetic sheet 7221 and the two foams 7222. The side close to each other of the two foams 7222 and the flexible magnetic sheet 7221 form the avoiding position. The flexible magnetic sheet 7221 is arranged to be wrapped on the roller surface of the steel roller shaft 721, and can be magnetically connected with the steel roller shaft 721, and can be reused, thereby reducing the cost. The foams 7222 can provide good buffering effect for the pole piece and will not damage the pole piece, and the cost is low.

[0036] The side of the flexible magnetic sheet 7221 away from the steel roller shaft 721 is provided with an anti-static non-magnetic layer, the length and width dimensions of the anti-static non-magnetic layer are the same as those of the flexible magnetic sheet 7221, and the two foams 7222 are respectively adhered to the side of the anti-static non-magnetic layer away from the flexible magnetic sheet 7221. Since the flexible magnetic sheet 7221 is easy to adsorb dust and iron filings, thereby causing pollution to the pole piece, the anti-static non-magnetic layer can prevent the flexible magnetic sheet 7221 from adsorbing dust and iron filings, thereby avoiding pollution to the pole piece.

[0037] In this embodiment, the side of the flexible magnetic sheet 7221 away from the steel roller shaft 721 is provided with a glue layer, and the anti-static non-magnetic layer is adhered to the side of the glue layer away from the flexible magnetic sheet 7221.

[0038] The side of the foam 7222 close to the flexible magnetic sheet 7221 is provided with a glue layer, and the two foams 7222 are respectively adhered to the side of the anti-static non-magnetic layer away from the flexible magnetic sheet 7221 through the respective glue layers.

[0039] In this embodiment, the flexible magnetic sheet 7221 is a rubber magnetic sheet, which is good in elasticity and low in cost, and the foam 7222 and the anti-static non-magnetic layer are both polyester ammonia foams, which are good in buffering effect and low in cost. Understandably, the foam 7222 and the anti-static non-magnetic layer can also be other materials, which can be set according to actual conditions.

[0040] In actual application, the pole piece is first unwound by the unwinding mechanism, then the conductive paste is coated onto the front surface of the pole piece by the A-side coating mechanism to form a front paste layer, then the front paste layer of the pole piece is heated and dried by the first oven 10, then the pole piece is corrected by the discharge correction mechanism 20, then the pole piece is pulled by the pulling mechanism 30, then the thickness of the pole piece is measured by the thickness gauge 40, then the pole piece is corrected by the process correction mechanism 50, then the conductive paste is coated onto the B surface of the pole piece by the B-side coating mechanism 60 to form a back paste layer, after that, the pole piece passes through the two foams 7222 of the multiple step rollers 72 in turn, the steel roller shafts 721 and the composite glue structures 722 of the multiple step rollers 72 are driven to rotate by the driving motor, so that the multiple step rollers 72 can drive the pole piece to move, thereby conveying the pole piece. Then the B-side paste layer of the pole piece is heated and dried by the second oven 80, and then the pole piece is wound by the winding mechanism. In the process of moving the pole piece by the multiple step rollers 72, the pole lug of the pole piece can be avoided by the avoiding position of the step roller 72, so that the pole lug can be avoided from directly contacting the step roller 72, thereby avoiding the pole lug from being pressed by the step roller 72, so as to prevent the pole lug from having creases or wrinkles.

[0041] When the type needs to be changed, one end of the flexible magnetic sheet 7221 of the composite glue structure 722 is separated from the steel roller shaft 721, and then the composite glue structure 722 is detached from the steel roller shaft 721 along the circumference of the steel roller shaft 721, and then the flexible magnetic sheet 7221 of the composite glue structure 722 of other specifications is wrapped around the roller surface of the steel roller shaft 721, at this time the flexible magnetic sheet 7221 is magnetically connected with the roller surface of the steel roller shaft 721, so that the type changing is completed.

[0042] Further, the roller surface of the steel roller shaft 721 is provided with a scale (not shown in the figure) extending along the axial direction of the steel roller shaft 721, the two ends of the scale are aligned with the two ends of the roller surface of the steel roller shaft 721 respectively, and the two sides of the flexible magnetic sheet 7221 are aligned with two scales of the scale respectively, and the scale is arranged to play a positioning role in assembling the composite glue structure 722. Figure 5 As shown in the figure, then the two sides of the flexible magnetic sheet 7221 of the composite glue structure 722 are aligned with two scales of the scale respectively, and then the flexible magnetic sheet 7221 of the composite glue structure 722 is wrapped around the roller surface of the steel roller shaft 721 along the circumference of the steel roller shaft 721, and the two ends of the flexible magnetic sheet 7221 are in contact with each other, at this time the flexible magnetic sheet 7221 is magnetically connected with the roller surface of the steel roller shaft 721, so that the composite glue structure 722 is assembled.

[0043] The step roller 72 of the utility model comprises a steel roller shaft 721 and a composite glue structure 722, the composite glue structure 722 can avoid the pole lug of the pole piece, so that the pole lug can be prevented from being folded or wrinkled, the composite glue structure 722 is wrapped around the roller surface of the steel roller shaft 721 and magnetically connected with the roller surface of the steel roller shaft 721, so that the composite glue structure 722 can be quickly disassembled and assembled, the bearing does not need to be disassembled and leveled, so that the type changing can be completed in a short time, the type changing time is reduced, the production efficiency is improved, and the composite glue structure 722 that is disassembled can be reused, so that the type changing cost is saved.

[0044] In an alternative, the two ends of the composite glue structure 722 are not in contact with each other, but there is a gap between the two ends of the composite glue structure 722, specifically, there is a gap between the two ends of the flexible magnetic sheet 7221 of the composite glue structure 722, and the width of the gap is not greater than 1mm. This kind of mode can also achieve the above technical effects.

[0045] The step roller 72 of the climbing mechanism 70 of the utility model is also suitable for other occasions, for example, is used as a traction roller, a winding transition roller and the like.

[0046] The above is a specific description of the preferred embodiment of the present application, but the present application is not limited to the described embodiment, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A step roller characterized by, The composite glue structure is wrapped around the roller surface of the steel roller shaft and is magnetically connected with the roller surface of the steel roller shaft, the two ends of the composite glue structure are in contact with each other or there is a gap between the two ends of the composite glue structure, and the side of the composite glue structure away from the steel roller shaft has an avoiding position for avoiding the lug of the pole piece.

2. The step roller of claim 1, wherein The composite glue structure includes a flexible magnetic sheet and two foams, the flexible magnetic sheet is wrapped around the roller surface of the steel roller shaft and is magnetically connected with the roller surface of the steel roller shaft, the two ends of the flexible magnetic sheet are in contact with each other or there is a gap between the two ends of the flexible magnetic sheet, and the two foams are respectively arranged on the side of the flexible magnetic sheet away from the steel roller shaft and are arranged in the axial direction of the steel roller shaft.

3. The step roll of claim 2, wherein, The side of the flexible magnetic sheet away from the steel roller shaft is provided with an anti-static non-magnetic layer, and the two foams are respectively arranged on the side of the anti-static non-magnetic layer away from the flexible magnetic sheet.

4. The step roll of claim 3, wherein, The side of the foam close to the flexible magnetic sheet is provided with a glue layer, and the two foams are respectively arranged on the side of the anti-static non-magnetic layer away from the flexible magnetic sheet through the respective glue layers.

5. The step roll of claim 2, wherein, The flexible magnetic sheet is a rubber magnetic sheet, and the foam is a polyester ammonia foam.

6. The step roll of claim 2, wherein, The roller surface of the steel roller shaft is provided with a scale extending in the axial direction of the steel roller shaft, the two ends of the scale are respectively aligned with the two ends of the roller surface of the steel roller shaft, and the two sides of the flexible magnetic sheet are respectively aligned with two scales of the scale.

7. The step roller of claim 1, wherein The gap between the two ends of the composite glue structure is not greater than 1 mm.

8. A hill climbing mechanism comprising a hill climbing frame and a drive assembly, characterised in that, The climbing mechanism further comprises a plurality of step rollers as claimed in any one of claims 1-7, the plurality of step rollers are arranged in the climbing frame in the length direction of the climbing frame, the two ends of the steel roller shaft of each step roller are rotatably arranged in two mounting holes in the inner walls of the two sides of the climbing frame, and one end of the steel roller shaft of each step roller is connected with the driving assembly.

9. A coating device comprising an unwinding mechanism, an A-side coating mechanism, a first oven, a B-side coating mechanism, a climbing mechanism, a second oven and a winding mechanism, the winding mechanism, the unwinding mechanism, the A-side coating mechanism, the first oven and the B-side coating mechanism being arranged in sequence from left to right, the second oven being located above the first oven, the climbing mechanism being located above the B-side coating mechanism, the climbing mechanism comprising a climbing frame and a driving assembly, one end of the climbing frame being located above the B-side coating mechanism, the other end of the climbing frame being located to the right of the second oven, characterized in that, The climbing mechanism further comprises a plurality of step rollers as claimed in any one of claims 1-7, the plurality of step rollers are arranged in the climbing frame in the length direction of the climbing frame, the two ends of the steel roller shaft of each step roller are rotatably arranged in two mounting holes in the inner walls of the two sides of the climbing frame, and one end of the steel roller shaft of each step roller is connected with the driving assembly.

10. The coating apparatus according to claim 9, characterized in that The coating device further comprises a discharge deviation correction mechanism, a traction mechanism, a thickness gauge and a process deviation correction mechanism arranged in sequence between the first oven and the B-side coating mechanism, and the discharge deviation correction mechanism, the traction mechanism, the thickness gauge and the process deviation correction mechanism are all located below the climbing mechanism.

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