Pole piece anti-wrinkling conveying mechanism and rolling device

Abstract

The utility model discloses a pole piece anti-wrinkling conveying mechanism and a rolling device with the pole piece anti-wrinkling conveying mechanism, the pole piece anti-wrinkling conveying mechanism comprises a supporting frame, the supporting frame is provided with a material receiving roller, a feeding roller and a middle roller, the material receiving roller, the feeding roller and the middle roller are all arranged in a front-back extending mode, the material receiving roller and the feeding roller are both arranged above the middle roller, a conveying channel is arranged in the supporting frame, and the conveying channel is communicated with the middle roller. The conveying channel sequentially crosses the upper side of the material receiving roller, the lower side of the middle roller and the upper side of the feeding roller. The middle roller comprises a roller shaft and a sleeve arranged on the outer side of the roller shaft in a sleeving mode, and the sleeve is an elastic material component. By arranging the sleeve made of the elastic material, when the pole piece is conveyed to pass through the middle roller, the position, corresponding to the blank area, of the outer surface of the sleeve protrudes, so that the coating layer and the blank area can be in contact with the outer surface of the sleeve, the sleeve can play a role in leveling wrinkles generated in the rolling and conveying process, and follow-up production is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a pole piece wrinkle-proof conveying mechanism and a rolling device. Background Art

[0002] When making battery pole pieces, it is necessary to coat the foil with active materials, then dry and roll to form a coating layer. To improve production efficiency, it is often necessary to produce two or more pole pieces on the same piece of foil at the same time. In the previous coating process, in order to save the amount of active materials, a blank area without active materials will be left between the coating layers. It was found in production that because the coating layer of the pole piece is thicker and the blank area is thinner, the pole piece is prone to wrinkles due to uneven force during rolling and transportation, which is not conducive to subsequent production. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a pole piece wrinkle-proof conveying mechanism and a rolling device.

[0004] According to the first aspect of the utility model, the electrode wrinkle-proof conveying mechanism includes a support frame, the support frame is provided with a receiving roller, a feeding roller and an intermediate roller, the receiving roller, the feeding roller and the intermediate roller are all extended forward and backward, the receiving roller and the feeding roller are both arranged above the intermediate roller, a conveying channel is provided in the support frame, the conveying channel sequentially crosses the upper side of the receiving roller, the lower side of the intermediate roller and the upper side of the feeding roller; the intermediate roller includes a roller shaft and a sleeve sleeved on the outer side of the roller shaft, and the sleeve is an elastic material component.

[0005] The electrode wrinkle-proof conveying mechanism according to the first aspect of the utility model embodiment has at least the following technical effects: by setting a sleeve of elastic material, when the electrode is conveyed through the intermediate roller, the outer surface of the sleeve will bulge out at the blank area corresponding to the outer surface of the sleeve, so that the coating layer and the blank area can contact with the outer surface of the sleeve, and the sleeve can smooth the wrinkles generated during rolling and conveying, which is beneficial to subsequent production.

[0006] According to some embodiments of the present invention, the roller is slidably connected to the support frame up and down.

[0007] According to some embodiments of the utility model, sliding assemblies are provided at both ends of the roller shaft, and the sliding assemblies include a vertically extending slide groove and a sliding block arranged in the slide groove, the end of the roller shaft is rotatably connected to the sliding block, and the slide groove is connected to the support frame.

[0008] According to some embodiments of the present utility model, a vertically arranged cylinder is connected between the bottom of the sliding block and the support frame.

[0009] According to some embodiments of the present invention, a floating joint is connected between the cylinder and the bottom of the sliding block.

[0010] According to some embodiments of the present invention, the feed roller and the intermediate roller are collectively referred to as a first component, and the number of the first components is two.

[0011] According to the second aspect of the utility model, the rolling device includes a base frame, a rolling mechanism and the above-mentioned pole piece anti-wrinkle conveying mechanism, the rolling mechanism is arranged on the base frame, the rolling mechanism includes a supporting roller and a pressing roller arranged above the supporting roller, a rolling channel is defined between the pressing roller and the supporting roller, and the receiving roller is arranged between the rolling channel and the intermediate roller.

[0012] According to the rolling device of the embodiment of the second aspect of the utility model, there is at least the following technical effect: by setting the above-mentioned electrode wrinkle-proof conveying mechanism, when the electrode is conveyed through the intermediate roller, the outer surface of the sleeve corresponding to the blank area will bulge, so that the coating layer and the blank area can contact the outer surface of the sleeve, and the sleeve can smooth the wrinkles generated during rolling and conveying, which is beneficial to subsequent production.

[0013] According to some embodiments of the present invention, a ring and a tape are provided on the outer circumference of the pressure roller.

[0014] According to some embodiments of the utility model, the base frame is provided with a film roll, and the film roll is arranged on the side of the rolling mechanism away from the pole piece anti-wrinkle conveying mechanism, and a tape roll is sleeved on the outside of the film roll, and the front and rear positions of the tape roll are flush with the tape.

[0015] According to some embodiments of the present invention, the film tube is connected to the base frame in a forward and backward sliding manner.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a rolling device according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of a rolling device according to an embodiment of the utility model;

[0020] Figure 3 yes Figure 1Schematic diagram of the cross-sectional structure of the sleeve.

[0021] In the attached figure:

[0022] 100-support frame; 110-receiving roller; 120-feeding roller; 130-sleeve; 131-roller shaft; 141-cylinder; 142-floating joint; 143-sliding block; 144-limiting strip; 200-base frame; 210-pressing roller; 211-tape; 220-support roller; 230-sliding rod; 231-tape roll. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present utility model, it should be understood that the directions or positional relationships indicated, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the meaning of several is one or more, the meaning of more than two is more than two, greater than, less than, exceed, etc. are understood to exclude the number itself, and above, below, within, etc. are understood to include the number itself. If there is a description of the first and the second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Reference below Figures 1 to 3 The present invention describes an anti-wrinkle conveying mechanism and a rolling device for pole pieces according to an embodiment of the present invention.

[0027] The electrode wrinkle-proof conveying mechanism of the first embodiment of the utility model comprises a support frame 100, wherein the support frame 100 is provided with a receiving roller 110, a feeding roller 120 and an intermediate roller, wherein the receiving roller 110, the feeding roller 120 and the intermediate roller are all extended forward and backward, and the receiving roller 110 and the feeding roller 120 are both arranged above the intermediate roller, and a conveying channel is arranged in the support frame 100, and the conveying channel sequentially crosses the upper side of the receiving roller 110, the lower side of the intermediate roller and the upper side of the feeding roller 120; the intermediate roller comprises a roller shaft 131 and a sleeve 130 sleeved on the outer side of the roller shaft 131, and the sleeve 130 is an elastic material component.

[0028] like Figure 2 As shown, the support frame 100 includes a base and a front support plate and a rear support plate arranged on the upper side of the base, the front support plate and the rear support plate are both vertically arranged, and the front support plate and the rear support plate are spaced apart from each other in front and back, the receiving roller 110, the feeding roller 120 and the middle roller are all arranged between the front support plate and the rear support plate, the feeding roller 120 is arranged directly above the middle roller, and the receiving roller 110 is arranged on the left side between the middle roller and the feeding roller 120; the sleeve 130 can be a rubber or other suitable elastic material component.

[0029] By providing the sleeve 130 of elastic material, when the electrode piece is conveyed through the intermediate roller, the outer surface of the sleeve 130 corresponding to the blank area will bulge out, such as Figure 3 As shown, the coating layer and the blank area can contact the outer surface of the sleeve 130, and the sleeve 130 can flatten the wrinkles generated during rolling and conveying, which is beneficial to subsequent production. At the same time, by arranging the receiving roller 110 and the feeding roller 120 to be located above the middle roller, the time required for the pole piece to bypass the middle roller during transportation is longer, that is, the time for the pole piece to fit the middle roller is longer, and the middle roller has a better flattening effect on the wrinkles. In addition, since the entire sleeve 130 is made of elastic material, even if the position and number of the blank areas change, the sleeve 130 can adaptively protrude at the corresponding blank areas without adjusting the sleeve 130.

[0030] In some embodiments of the present invention, the roller 131 is connected to the support frame 100 by sliding up and down. The middle roller tends to move downward under the action of its own gravity, so that there is enough pressure at the joint between the middle roller and the electrode, which is conducive to the stable transportation of the electrode and has a better flattening effect on wrinkles. The roller 131 and the support frame 100 can be connected by a guide rail slider mechanism, a linear bearing or other suitable mechanism to achieve sliding connection.

[0031] In some embodiments of the utility model, sliding assemblies are provided at both ends of the roller shaft 131, and the sliding assemblies include a vertically extending slide groove and a sliding block 143 arranged in the slide groove. The end of the roller shaft 131 is rotatably connected to the sliding block 143, and the slide groove is connected to the support frame 100. The front end of the receiving roller 110 is rotatably arranged on the front support plate through a bearing, and the rear end of the receiving roller 110 is rotatably arranged on the rear support plate through a bearing; the front end of the feeding roller 120 is rotatably arranged on the front support plate through a bearing, and the rear end of the feeding roller 120 is rotatably arranged on the rear support plate through a bearing; the front end of the roller shaft 131 of the intermediate roller is rotatably arranged on the sliding block 143 of one of the sliding assemblies through a bearing, and the rear end of the roller shaft 131 of the intermediate roller is rotatably arranged on the sliding block 143 of the other sliding assembly through a bearing; the sliding block 143 is in the shape of a rectangular block. Taking the sliding assembly located on the rear side as an example, the left and right sides of the sliding block 143 are provided with vertically extending limit strips 144, and the two limit strips 144 are both installed on the rear support plate by bolts, and the rear support plate and the two limit strips 144 define a slide groove; such a structure is simple and easy to produce and assemble.

[0032] It is understandable that the wear resistance and aging resistance of elastic materials are generally lower than those of metal materials, that is, compared with the receiving roller 110 and the feeding roller 120 made of metal materials, the sleeve 130 is a wearing part and needs to be replaced from time to time; in this embodiment, a limit bar 144 is provided and installed on the front support plate by bolts. When the sleeve 130 needs to be replaced, the limit bar 144 on the same side of the two sliding components is removed, and the two ends of the middle roller can be taken out of the slide groove, which is convenient for replacing the sleeve 130.

[0033] In some embodiments of the utility model, a vertically arranged cylinder 141 is connected between the bottom of the sliding block 143 and the support frame 100. The cylinder 141 is connected between the bottom of the sliding block 143 and the base, the cylinder body of the cylinder 141 is arranged on the base, and the piston rod of the cylinder 141 extends upward from the cylinder body and is connected to the sliding block 143. By setting the cylinder 141, a certain air pressure can be supplied to the cylinder 141 during use, so that in addition to utilizing the gravity of the intermediate roller, a constant downward pulling force can be applied to the intermediate roller through the cylinder 141, which is conducive to the stable transportation of the electrode sheet and has a better flattening effect on wrinkles.

[0034] In some embodiments of the utility model, a floating joint 142 is connected between the cylinder 141 and the bottom of the sliding block 143. The floating joint 142 is a conventional component in the art and can be directly purchased from the market. Its specific structure is not described in detail here. By providing the floating joint 142, during operation, even if the middle roller is slightly tilted, it can still maintain stable operation.

[0035] In some embodiments of the present invention, the feed roller 120 and the intermediate roller are collectively referred to as the first assembly, and the number of the first assemblies is two. The two first assemblies are sequentially arranged on the right side of the receiving roller 110 from left to right. By arranging two first assemblies, the wrinkles on the pole piece can be flattened twice, and the flattening effect is better.

[0036] The rolling device of the second embodiment of the utility model comprises a base frame 200, a rolling mechanism and the above-mentioned pole piece anti-wrinkle conveying mechanism, the rolling mechanism is arranged on the base frame 200, the rolling mechanism comprises a supporting roller 220 and a pressing roller 210 arranged above the supporting roller 220, a rolling channel is defined between the pressing roller 210 and the supporting roller 220, and the receiving roller 110 is arranged between the rolling channel and the intermediate roller.

[0037] For example, Figure 1 As shown, the rolling mechanism is arranged on the left side of the electrode anti-wrinkle conveying mechanism, the pressing roller 210 and the supporting roller 220 are both extended forward and backward, and the pressing roller 210 and the supporting roller 220 are both rotatably arranged on the base frame 200. The base frame 200 is provided with a motor for driving the pressing roller 210 to rotate, and the pressing roller 210 and the supporting roller 220 can be linked and connected by a gear mechanism, a sprocket mechanism, a pulley mechanism or other suitable linkage mechanisms; the right end of the rolling channel is connected with the left end of the conveying channel.

[0038] By setting up an electrode wrinkle-proof conveying mechanism, when the electrode is conveyed through the middle roller, the outer surface of the sleeve 130 corresponding to the blank area will bulge out, so that the coating layer and the blank area can contact the outer surface of the sleeve 130. The sleeve 130 can smooth the wrinkles generated during rolling and conveying, which is beneficial to subsequent production.

[0039] In some embodiments of the present invention, a ring with adhesive tape 211 is provided on the periphery of the pressing roller 210. The position of the adhesive tape 211 corresponds to the blank area of ​​the pole piece, so that when the pole piece passes through the rolling channel, the adhesive tape 211 is arranged in the blank area. This can reduce wrinkles generated during the rolling process.

[0040] In some embodiments of the utility model, the base frame 200 is provided with a film roll, which is arranged on the side of the roller pressing mechanism away from the electrode anti-wrinkle conveying mechanism, and a tape roll 231 is arranged on the outer sleeve of the film roll, and the front and rear positions of the tape roll 231 are flush with the tape. The tape roll 231 is rotatably arranged on the film roll, and when the tape is to be pasted, a piece of tape is pulled out from the tape roll 231, and one end of the tape is pasted on the pressure roller 210, and then the pressure roller 210 is rotated to wrap the tape around the outer side of the pressure roller 210, and then the tape can be cut with scissors or other tools; it is convenient for pasting the tape.

[0041] In some embodiments of the present invention, the film drum is connected to the base frame 200 in a forward and backward sliding manner. The base frame 200 is provided with a sliding rod 230 extending forward and backward, and the film drum is slidably sleeved on the sliding rod 230 along the forward and backward direction, so that the forward and backward position of the film drum can be adjusted, and then the forward and backward position of the tape can be adjusted to adapt to pole pieces of different specifications and types, and there is no need to adjust the intermediate roller, and the sleeve 130 of the intermediate roller can adapt to the change of the position of the tape.

[0042] The preferred implementation methods of the present invention are specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pole piece wrinkle-proof conveying mechanism, characterized in that: It includes a support frame, which is provided with a receiving roller, a feeding roller and an intermediate roller. The receiving roller, the feeding roller and the intermediate roller are all extended forward and backward, and the receiving roller and the feeding roller are both arranged above the intermediate roller. A conveying channel is provided in the support frame, and the conveying channel sequentially crosses the upper side of the receiving roller, the lower side of the intermediate roller and the upper side of the feeding roller; the intermediate roller includes a roller shaft and a sleeve sleeved on the outer side of the roller shaft, and the sleeve is an elastic material component.

2. The electrode anti-wrinkle conveying mechanism according to claim 1, characterized in that: The roller shaft is slidably connected to the support frame up and down.

3. The electrode anti-wrinkle conveying mechanism according to claim 2, characterized in that; Both ends of the roller shaft are provided with sliding components, and the sliding components include a vertically extending slide groove and a sliding block arranged in the slide groove. The end of the roller shaft is rotatably connected to the sliding block, and the slide groove is connected to the support frame.

4. The electrode wrinkle-proof conveying mechanism according to claim 3, characterized in that: A vertically arranged cylinder is connected between the bottom of the sliding block and the supporting frame.

5. The electrode wrinkle-proof conveying mechanism according to claim 4, characterized in that: A floating joint is connected between the cylinder and the bottom of the sliding block.

6. The electrode wrinkle-proof conveying mechanism according to claim 1, characterized in that: The feeding roller and the intermediate roller are collectively referred to as a first component, and the number of the first components is two.

7. A rolling device, characterized in that: It comprises a base frame, a rolling mechanism and the electrode wrinkle-proof conveying mechanism as described in any one of claims 1 to 6, wherein the rolling mechanism is arranged on the base frame, the rolling mechanism comprises a supporting roller and a pressing roller arranged above the supporting roller, a rolling channel is defined between the pressing roller and the supporting roller, and the receiving roller is arranged between the rolling channel and the intermediate roller.

8. The rolling device according to claim 7, characterized in that: The outer periphery of the pressing roller is provided with a ring and an adhesive tape.

9. The rolling device according to claim 8, characterized in that: The base frame is provided with a film cylinder, which is arranged on the side of the rolling mechanism away from the pole piece wrinkle-proof conveying mechanism. A tape roll is sleeved on the outer side of the film cylinder, and the front and rear positions of the tape roll are flush with the tape.

10. The rolling device according to claim 9, characterized in that: The film tube is connected to the base frame in a forward and backward sliding manner.

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