Material belt conveying device and tab cutting system

Abstract

The utility model relates to the technical field of lithium battery manufacturing, and provides a material belt conveying device and a tab cutting system. The material belt conveying device comprises a first conveying roller, a second conveying roller, a first clamping assembly and a second clamping assembly. The second conveying roller and the first conveying roller are arranged at an interval in the first direction, and the first conveying roller and the second conveying roller are configured to be linked through a material belt; the first clamping assembly and the second clamping assembly are respectively used for clamping the material belt between the first conveying roller and the second conveying roller; in the first direction, a laser is arranged between the first clamping assembly and the second clamping assembly. According to the laser cutting device, the laser cutting precision can be guaranteed, so that waste generated by cutting can be completely cut off, and the production quality is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery manufacturing, and more specifically, to a material belt conveying device and a tab cutting system. Background Art

[0002] The tab plays an important role in lithium-ion batteries; it is a key component that connects the battery pole piece to the electrode lead, and plays a role in conductivity and fixation. In the manufacturing process of lithium-ion batteries, the formation of the battery tab is an important process. At present, laser cutting of the tab is mostly used, and the waste generated by laser cutting is removed by belt vacuum adsorption; however, during laser cutting, there may be a situation where the waste is not completely cut off, so the waste still adheres to the material belt, thus affecting the production quality.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a material belt conveying device and a tab cutting system, aiming to solve the technical problem that waste materials are not completely cut off during laser cutting and the waste materials still adhere to the material belt.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] A first aspect of the present application provides a material belt conveying device, comprising: a first conveying roller, a second conveying roller, a first clamping assembly and a second clamping assembly;

[0007] The second conveying roller is spaced apart from the first conveying roller in the first direction, and the first conveying roller and the second conveying roller are configured to be linked via a material belt;

[0008] The first clamping assembly and the second clamping assembly are used to clamp the material belt between the first conveying roller and the second conveying roller respectively;

[0009] Wherein, in the first direction, a laser is arranged between the first clamping assembly and the second clamping assembly.

[0010] In one possible design, the second clamping assembly includes a first conveying portion and a second conveying portion, the first conveying portion includes a first belt, and the second conveying portion includes a second belt;

[0011] A first gap is provided between the first belt and the second belt for the supply belt to pass through, and the first belt and the second belt can move synchronously with the supply belt.

[0012] In a possible design, the first clamping assembly includes a first clamping roller and a second clamping roller, and a second gap through which the supply belt passes is defined between the first clamping roller and the second clamping roller.

[0013] In a possible design, the material belt conveyor device further includes a first waste collection mechanism and a second waste collection mechanism;

[0014] The first waste collection mechanism is disposed below the first belt;

[0015] The second waste collecting mechanism is arranged below the second belt.

[0016] In one possible design, the first waste collection mechanism includes a hopper and a negative pressure device disposed in the hopper;

[0017] The second waste collection mechanism includes a hopper and a negative pressure device arranged in the hopper.

[0018] In a possible design, the first transmission part further includes a first belt pulley and a second belt pulley, and the first belt pulley and the second belt pulley are linked by a first belt;

[0019] The second transmission part comprises a third pulley and a fourth pulley, and the third pulley and the fourth pulley are linked by the second belt.

[0020] In a possible design, the first pulley and the second pulley are spaced apart and distributed on a first straight line, and the first straight line is parallel to the first direction;

[0021] The third pulley and the fourth pulley are spaced apart and distributed on a second straight line, and the second straight line is parallel to the first direction.

[0022] In a possible design, the first belt is a negative pressure belt, and the second belt is a negative pressure belt;

[0023] The first conveying part also includes a first positioning wheel, a line between the first positioning wheel and the second belt pulley and the first straight line have an angle, and the first belt has a first negative pressure surface between the first positioning wheel and the second belt pulley;

[0024] The second conveying part also includes a second positioning wheel, a line between the second positioning wheel and the fourth pulley has an angle with the second straight line, and the second belt has a second negative pressure surface between the second positioning wheel and the fourth pulley.

[0025] In a possible design, the material belt conveying device further includes an encoder, and a rotating shaft of the encoder is connected to the first conveying roller.

[0026] A second aspect of the present application provides a tab cutting system, comprising: a laser and any material belt conveying device provided in the first aspect;

[0027] In a first direction, the laser is disposed between the first clamping assembly and the second clamping assembly.

[0028] The beneficial effects of the material belt conveying device and the tab cutting system provided by the present application are mainly:

[0029] The material belt conveying device provided in the present application realizes the conveyance of the material belt through the first conveying roller and the second conveying roller; in addition, the first clamping assembly and the second conveying assembly are arranged between the first conveying roller and the second conveying roller to realize the clamping of the material belt. In this way, when the laser cuts the part of the material belt between the first clamping assembly and the second clamping assembly, the material belt is clamped by the first clamping assembly and the second clamping assembly, thereby ensuring that the material belt is not prone to shaking (or fluctuation) during the cutting process, thereby ensuring the accuracy of laser cutting, so that the waste generated by the cutting can be completely cut off, thereby ensuring the production quality.

[0030] Based on the above, the tab cutting system also provided in the present application can ensure the accuracy of laser cutting because it includes a material belt transmission device, so that the waste generated by cutting can be completely cut off, thereby ensuring production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 is a schematic structural diagram of a tab cutting system provided by an embodiment of the present application;

[0033] Figure 2 is a structural schematic diagram of a material belt conveyor provided by an embodiment of the present application;

[0034] Figure 3 This is another structural schematic diagram of a material belt conveyor provided by an embodiment of the present application.

[0035] Description of main reference numerals:

[0036] 100. Laser; 101. Laser cutting area; 201. First conveying roller; 202. Second conveying roller; 203. Material belt; 204. First clamping roller; 205. Second clamping roller; 206. First belt; 207. Second belt; 208. First pulley; 209. Second pulley; 210. Third pulley; 211. Fourth pulley; 212. First positioning wheel; 213. Second positioning wheel; 214. First negative pressure surface; 215. Second negative pressure surface; 216. First tensioning wheel; 217. Second tensioning wheel; 218. First waste collection mechanism; 219. Second waste collection mechanism; 220. Hopper; 221. Inclined plate; 222. Encoder. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In order to illustrate the technical solution described in this application, a detailed description is given below in conjunction with specific drawings and embodiments.

[0042] In the related art, laser cutting is often used to cut the material belt 203, so as to cut out the shape of the tab on the material belt 203, and remove the waste generated by the laser cutting by belt vacuum adsorption; however, during laser cutting, the material belt 203 will shake, thereby affecting the laser cutting accuracy, resulting in the waste not being completely cut off, so that the waste still adheres to the material belt 203, thereby affecting the production quality. Therefore, in order to solve the problems in the related art, the embodiment of the present application provides a material belt conveyor and a tab cutting system.

[0043] See also Figures 1 to 3 As shown, in one or more embodiments, the present application provides a pole ear cutting system, which includes: a laser 100 and a material belt conveyor, the material belt conveyor is used to convey the material belt 203, the laser 100 is used to cut the material belt 203 conveyed by the material belt conveyor to cut out the shape of the pole ear, after cutting the shape of the pole ear, a part of the structure of the pole ear is still connected to the material belt 203, and the separation of the pole ear and the material belt 203 is carried out in other processes, which is not involved in the embodiments of the present application, and therefore will not be described in detail; and the waste cut by the laser 100 is recovered by the material belt conveyor.

[0044] In one or more embodiments, the material belt conveying device includes: a first conveyor roller 201, a second conveyor roller 202, a first clamping assembly and a second clamping assembly; the second conveyor roller 202 and the first conveyor roller 201 are spaced apart in the first direction, and the first conveyor roller 201 and the second conveyor roller 202 are configured to be linked through the material belt 203; the first clamping assembly is used to clamp a part of the material belt 203 between the first conveyor roller 201 and the second conveyor roller 202; the second clamping assembly is used to clamp another part of the material belt 203 between the first conveyor roller 201 and the second conveyor roller 202; wherein, in the first direction, the laser 100 is arranged between the first clamping assembly and the second clamping assembly.

[0045] For ease of description, in the embodiment of the present application, the first direction is parallel to the AA direction, and the second direction is parallel to the BB direction; the movement direction of the material belt 203 is the direction indicated by the arrow C.

[0046] In at least one embodiment, the material belt conveying device provided by the present application realizes the conveyance of the material belt 203 through the first conveying roller 201 and the second conveying roller 202; in addition, the first clamping component and the second conveying component are arranged between the first conveying roller 201 and the second conveying roller 202 to realize the clamping of the material belt 203. In this way, when the laser 100 cuts the part of the material belt 203 between the first clamping component and the second clamping component, the first clamping component and the second clamping component clamp the material belt 203, thereby ensuring that the material belt 203 is not prone to shaking (or fluctuation) during the cutting process, thereby ensuring the cutting accuracy of the laser 100, so that the waste generated by the cutting can be completely cut off, thereby ensuring the production quality.

[0047] In some embodiments, the material belt conveyor also includes a frame, and the first conveyor roller 201, the second conveyor roller 202, the first clamping assembly, the second clamping assembly and the laser 100 are all installed on the frame. This application does not specifically limit their respective installation methods, and the structure of the frame itself can be designed as needed. The frame mainly plays a supporting role. After the material belt 203 is wound around the first conveyor roller 201 and the second conveyor roller 202, the movement of the material belt 203 drives the first conveyor roller 201 and the second conveyor roller 202 to move. The first direction can be a vertical direction, which is convenient for collecting waste after cutting. The first conveyor roller 201 and the second conveyor roller 202 are respectively located on the two opposite sides of the material belt 203.

[0048] It should be noted that the movement of the material belt 203 can be achieved by using a motor to drive the roller to rotate, and the material belt 203 is wound on the roller to achieve the movement of the material belt 203; of course, other methods can also be used to achieve the movement of the material belt 203. In addition, in some other possible implementations, at least one of the first conveying roller 201 and the second conveying roller 202 can be passively moved, or at least one of the two can be actively moved; passive movement means that the conveying roller itself has no power, and active movement means that the conveying roller is driven by a motor.

[0049] In some embodiments, the first clamping assembly includes a first clamping roller 204 and a second clamping roller 205, and there is a second gap between the first clamping roller 204 and the second clamping roller 205 for the material supply belt 203 to pass through, so that the portion of the material belt 203 between the first conveying roller 201 and the second conveying roller 202 can be clamped to ensure that the material belt 203 is not prone to shaking. The movement of the first clamping roller 204 and the second clamping roller 205 is to rotate with the movement of the material belt 203, that is, the first clamping roller 204 and the second clamping roller 205 are passive movements.

[0050] In some embodiments, the second clamping assembly includes a first conveying part and a second conveying part, the first conveying part includes a first belt 206, and the second conveying part includes a second belt 207; there is a first gap between the first belt 206 and the second belt 207 for the material supply belt 203 to pass through, and the first belt 206 and the second belt 207 can move synchronously with the material belt 203. In this way, the waste generated by cutting and the material belt 203 are clamped together between the first belt 206 and the second belt 207, and the first belt 206, the second belt 207 and the material belt 203 move synchronously to transport the waste to the corresponding position, and the first belt 206 and the second belt 207 can also be used to clamp the material belt 203, so that the material belt 203 is not easy to shake; because the laser 100 is located between the first clamping assembly and the second clamping assembly, the material belt 203 is prevented from fluctuating when the laser 100 is cutting. It should be noted that when the material belt 203 is not installed, the first belt 206 and the second belt 207 can also move. After the material belt 203 is installed, the movement of the material belt 203 is synchronized with the movement of the first belt 206 and the second belt 207, respectively, thus ensuring the accuracy of the laser 100 in cutting the material belt 203.

[0051] In some embodiments, the first transmission part further includes a first pulley 208 and a second pulley 209, which are linked by the first belt 206; the second transmission part includes a third pulley 210 and a fourth pulley 211, which are linked by the second belt 207. In this way, the first pulley 208 and the second pulley 209 can be linked with the first belt 206 to realize the rotation of the first belt 206; and the third pulley 210 and the fourth pulley 211 can be linked with the second belt 207 to realize the rotation of the second belt 207.

[0052] In some embodiments, the first pulley 208 and the second pulley 209 are spaced apart on a first straight line, and the first straight line is parallel to the first direction; the third pulley 210 and the fourth pulley 211 are spaced apart on a second straight line, and the second straight line is parallel to the first direction, thereby increasing the contact area between the first belt 206 and the second belt 207 and the material belt 203, thereby further ensuring that the material belt 203 does not shake when being cut; in addition, the first pulley 208 and the second pulley 209 are spaced apart on the first straight line, and the third pulley 210 and the fourth pulley 211 are spaced apart on the second straight line, so that part of the surface of the first belt 206 is parallel to part of the surface of the material belt 203, and part of the surface of the second belt 207 is parallel to the surface of the material belt 203, so that the waste generated by cutting and the material belt 203 are sandwiched between the first belt 206 and the second belt 207 and transported a distance for easy transportation to the designated location. Exemplarily, the rotation axis of the first pulley 208 is parallel to the rotation axis of the second pulley 209, and the rotation axis of the third pulley 210 is parallel to the rotation axis of the fourth pulley 211; the rotation axis of the first pulley 208 is parallel to the rotation axis of the third pulley 210, thus ensuring that a portion of the surface of the first belt 206 is parallel to a portion of the surface of the second belt 207. It should be noted that during the process of the laser 100 cutting the material belt 203, part of the waste material generated by the laser 100 is clamped by the first belt 206 and the second belt 207. For example, the waste material sheet generated by the cutting is called the first waste material sheet, part of which is clamped by the first belt 206 and the second belt 207, and the other part is being cut by the laser 100. When the laser 100 is finished cutting, since part of the first waste material sheet is clamped between the first belt 206 and the second belt 207, it will move with the material belt 203.

[0053] In some embodiments, the first belt 206 is a negative pressure belt, and the second belt 207 is a negative pressure belt; the first conveying part further includes a first positioning wheel 212, the line between the first positioning wheel 212 and the second belt pulley 209 has an angle with the first straight line, and the first belt 206 has a first negative pressure surface 214 between the first positioning wheel 212 and the second belt pulley 209; the second conveying part further includes a second positioning wheel 213, the line between the second positioning wheel 213 and the fourth belt pulley 211 has an angle with the second straight line, and the second belt 207 has a second negative pressure surface 215 between the second positioning wheel 213 and the fourth belt pulley 211. Since the first belt 206 and the second belt 207 are respectively located on two opposite sides of the material belt 203, no matter which side of the material belt 203 the waste falls off, it can be adsorbed, that is, adsorbed by the first negative pressure surface 214 or the second negative pressure surface 215.

[0054] Exemplarily, the rotation axis of the first positioning wheel 212 is parallel to the rotation axis of the second positioning wheel 213, and the rotation axis of the first positioning wheel 212 is parallel to the rotation axis of the first pulley 208. A plurality of negative pressure holes (not shown) are provided on the negative pressure belt to facilitate the waste to be stably attached to the belt, to ensure the separation of the waste and the tab, and the material belt 203 can also be stably transported. The negative pressure belt can be connected to a negative pressure air source through a pipeline to have the function of negative pressure adsorption of waste, wherein the negative pressure air source is connected to one end of the pipeline, and the outlet at the other end of the pipeline is arranged relative to the negative pressure belt, so that the first negative pressure surface 214 and the second negative pressure surface 215 can adsorb the waste. The first transmission part also includes two first tensioning wheels 216, and the two first tensioning wheels 216 are arranged at intervals along the first direction, wherein one of the first tensioning wheels 216 is located below the other first tensioning wheel 216, and the first tensioning wheel 216 closest to the first positioning wheel 212 is spaced apart from the first positioning wheel 212 along the second direction, the first direction is parallel to the second direction, the second direction can be a horizontal direction, and the second direction can be perpendicular to the rotation axis of the first positioning wheel 212; the rotation axes of the two first tensioning wheels 216 are respectively parallel to the rotation axis of the first positioning wheel 212. The second transmission part also includes two second tensioning wheels 217, and the two second tensioning wheels 217 are arranged at intervals along the second direction, wherein one second tensioning wheel 217 is located below the other second tensioning wheel 217, and the second tensioning wheel 217 closest to the second positioning wheel 213 is spaced apart from the second positioning wheel 213 along the second direction, and the second direction is parallel to the second direction, and the second direction can be a horizontal direction, and the second direction can be perpendicular to the rotation axis of the second positioning wheel 213; the rotation axes of the two second tensioning wheels 217 are respectively parallel to the rotation axis of the second positioning wheel 213; in this way, the first belt 206 and the second belt 207 are tightened by the first tensioning wheel 216 and the second tensioning wheel 217 respectively.

[0055] It should be noted that any one of the first tensioning wheel 216, the first positioning wheel 212, the first pulley 208 and the second pulley 209 can be driven by a motor, so that the first tensioning wheel 216, the first positioning wheel 212, the first pulley 208 and the second pulley 209 are linked by the first belt 206; any one of the second tensioning wheel 217, the second positioning wheel 213, the third pulley 210 and the fourth pulley 211 can be driven by a motor, so that the second tensioning wheel 217, the second positioning wheel 213, the third pulley 210 and the fourth pulley 211 are linked by the second belt 207.

[0056] In some embodiments, the material belt conveyor further comprises a first waste collection mechanism 218 and a second waste collection mechanism 219 mounted on the frame; the first waste collection mechanism 218 is arranged below the first belt 206; the second waste collection mechanism 219 is arranged below the second belt 207, so as to facilitate the collection of waste. Exemplarily, the first waste collection mechanism 218 and the first belt 206 are configured to be arranged on one side of the material belt 203, and the second waste collection mechanism 219 and the second belt 207 are arranged on the other side opposite to the material belt 203, so as to facilitate the collection of waste.

[0057] In some embodiments, the first waste collection mechanism 218 includes a hopper 220 and a negative pressure device (not shown) disposed in the hopper 220; the second waste collection mechanism 219 includes a hopper 220 and a negative pressure device (not shown) disposed in the hopper 220, so that the waste is sucked into the hopper 220 by using negative pressure. For example, the inlet of the hopper 220 of the first waste collection mechanism 218 can be provided with an inclined plate 221 (see Figure 3 As shown), this allows the waste to slide into the hopper 220 under the action of gravity.

[0058] In some embodiments, the material belt conveyor also includes an encoder 222, the rotating shaft of the encoder 222 is connected to the first conveyor roller 201, and the encoder 222 is connected to the first conveyor roller 201 to facilitate the synchronous movement of the first belt 206, the second belt 207 and the material belt 203.

[0059] The working principle of the tab cutting system provided in at least one embodiment of the present application is mainly: according to the linear speed of the material belt 203 detected by the encoder 222, the linear speeds of the first belt 206 and the second belt 207 are matched and adjusted to be consistent with it. Figure 1 As shown in the box in, when the laser 100 is working, the first belt 206 and the second belt 207 clamp the cut pole ear, and the waste moves with the material belt 203. After the first belt 206 and the second belt 207 clamp the waste to the first waste collection mechanism 218 and the second waste collection mechanism 219 area, the waste is sucked away by vacuum adsorption.

[0060] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A material belt conveyor, characterized in that: include: A first conveying roller, a second conveying roller, a first clamping assembly, and a second clamping assembly; The second conveying roller is spaced apart from the first conveying roller in a first direction, and the first conveying roller and the second conveying roller are configured to be linked via a material belt; The first clamping assembly and the second clamping assembly are used to clamp the material belt between the first conveying roller and the second conveying roller respectively; Wherein, in the first direction, a laser is arranged between the first clamping assembly and the second clamping assembly.

2. The material belt conveyor device according to claim 1, characterized in that: The second clamping assembly includes a first conveying portion and a second conveying portion, the first conveying portion includes a first belt, and the second conveying portion includes a second belt; A first gap is defined between the first belt and the second belt for the material belt to pass through, and the first belt and the second belt can move synchronously with the material belt.

3. The material belt conveyor device according to claim 1, characterized in that: The first clamping assembly includes a first clamping roller and a second clamping roller, and a second gap is defined between the first clamping roller and the second clamping roller for the material strip to pass through.

4. The material belt conveyor device according to claim 2, characterized in that: The material belt conveyor device also includes a first waste collection mechanism and a second waste collection mechanism; The first waste collection mechanism is disposed below the first belt; The second waste collecting mechanism is arranged below the second belt.

5. The material belt conveyor device according to claim 4, characterized in that: The first waste collection mechanism includes a hopper and a negative pressure device disposed in the hopper; The second waste collection mechanism includes a hopper and a negative pressure device arranged in the hopper.

6. The material belt conveyor device according to claim 2, characterized in that: The first conveying part further comprises a first belt pulley and a second belt pulley, and the first belt pulley and the second belt pulley are linked by the first belt; The second transmission part includes a third pulley and a fourth pulley, and the third pulley and the fourth pulley are linked via the second pulley.

7. The material belt conveyor device according to claim 6, characterized in that: The first pulley and the second pulley are spaced apart and distributed on a first straight line, and the first straight line is parallel to the first direction; The third pulley and the fourth pulley are spaced apart and distributed on a second straight line, and the second straight line is parallel to the first direction.

8. The material belt conveyor device according to claim 7, characterized in that: The first belt is a negative pressure belt, and the second belt is a negative pressure belt; The first conveying part further includes a first positioning wheel, a line between the first positioning wheel and the second belt pulley and the first straight line have an angle, and the first belt has a first negative pressure surface between the first positioning wheel and the second belt pulley; The second conveying part also includes a second positioning wheel, a line between the second positioning wheel and the fourth pulley has an angle with the second straight line, and the second belt has a second negative pressure surface between the second positioning wheel and the fourth pulley.

9. The material belt conveyor device according to claim 1, characterized in that: The material belt conveying device further comprises an encoder, and a rotating shaft of the encoder is connected to the first conveying roller.

10. A tab cutting system, characterized in that: include: A laser and a material conveying device as claimed in any one of claims 1 to 9; In the first direction, the laser is disposed between the first clamping assembly and the second clamping assembly.

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