Edge pressing equipment for soft package lithium battery tab sheet

Abstract

The utility model relates to edge pressing equipment for a soft package lithium battery tab sheet, which comprises a support table, a mounting plate arranged above the support table, and a discharging mechanism and a receiving mechanism arranged on the mounting plate, a first auxiliary mechanism, a first cleaning device, a second auxiliary mechanism, a first guide mechanism, a first pressing mechanism, an edge pressing mechanism, a second cleaning device, a second pressing mechanism, a second guide mechanism, a third auxiliary mechanism and a fourth auxiliary mechanism are sequentially arranged in the conveying direction of a tab sheet. The edge pressing equipment disclosed by the utility model has the advantage of high automation degree, can better ensure that the tab sheet has better thickness uniformity, and has the characteristic of adjustable pressing thickness. In addition, burrs and the like on the tab sheet can be effectively removed, and the yield of lithium battery production is improved. And the middle part and the edge part of the tab sheet are pressed in different processes, so that the pressing refinement degree is improved.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to an edge pressing device for a tab sheet of a soft-package lithium battery. Background Art

[0002] Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. It is different from rechargeable lithium-ion batteries and lithium-ion polymer batteries. The inventor of the lithium battery is Edison. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements.

[0003] At present, the country vigorously promotes new energy vehicles, and the lithium battery industry has also developed greatly. At present, lithium batteries have the advantages of high voltage, high energy, many cycles, and long storage time. They have been widely used in large and medium-sized electric equipment and automobiles. The market demand for lithium batteries continues to expand, and the production of lithium batteries has attracted more and more attention. In related technologies, the positive ear is directly welded to the positive electrode sheet, and the negative ear is welded to the negative electrode sheet, and then multiple positive and negative electrode sheets are stacked together by winding or laminating. In this process, the thickness of the ear sheet is required to be uniform, otherwise the lithium battery processed by winding or laminating is prone to defects.

[0004] The pressing method used in traditional technology is usually manually controlled pressing. However, the manual pressing method has the defects of high labor intensity and low production efficiency, and cannot ensure that the tab sheet has good thickness uniformity.

[0005] In view of the above defects, the present invention provides a soft-pack lithium battery tab sheet pressing device, which has the advantages of high automation, can better ensure that the tab sheet has good thickness uniformity, and has the characteristics of adjustable pressing thickness. In addition, it can also effectively remove burrs on the tab sheet, etc., and improve the yield of lithium battery production. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In order to solve the above problems in the prior art, the utility model provides an edge pressing device for a tab sheet of a soft-pack lithium battery.

[0008] (II) Technical solution

[0009] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0010] A soft-pack lithium battery tab sheet edge pressing device, characterized in that:

[0011] a support table for support;

[0012] A discharge mechanism, which is arranged on the support platform and is used to release the battery tab sheet;

[0013] A material collection mechanism, which is arranged on a support platform and is used to wind and recover the pressed battery tab sheets under power drive;

[0014] An auxiliary mechanism, at least one of which is provided for guiding and limiting the battery tab sheet;

[0015] A pressing mechanism, which presses and flattens the battery tab sheet on the conveying path of the battery tab sheet;

[0016] A pressing mechanism presses the edge of a battery tab sheet on the conveying path of the battery tab sheet; the pressing mechanism comprises two pressing wheel groups respectively located at the two sides of the battery tab sheet; the pressing wheel groups comprise pressing wheels respectively located at the upper and lower sides of the battery tab sheet; the two pressing wheel groups are arranged at an angle, and the spacing between the pressing wheel groups gradually increases along the conveying direction of the battery tab sheet.

[0017] Furthermore, a mounting plate is provided on the support platform; the material discharge mechanism and the material collection mechanism are respectively provided at two ends of the mounting plate.

[0018] Furthermore, the auxiliary mechanism includes a first auxiliary mechanism, a second auxiliary mechanism, a third auxiliary mechanism, and a fourth auxiliary mechanism sequentially arranged along the conveying direction of the battery tab sheet; the first auxiliary mechanism and the second auxiliary mechanism are arranged close to the material discharge mechanism; the third auxiliary mechanism and the fourth auxiliary mechanism are arranged close to the material receiving mechanism; a first cleaning device is arranged between the first auxiliary mechanism and the second auxiliary mechanism; the first cleaning device is mounted on the mounting plate;

[0019] The guiding mechanism comprises a first guiding mechanism and a second guiding mechanism;

[0020] The pressing mechanism includes a first pressing mechanism and a second pressing mechanism;

[0021] A first guiding mechanism, a first pressing mechanism, a pressing plate mechanism, a second cleaning device, a second pressing mechanism, and a second guiding mechanism are sequentially arranged between the second auxiliary mechanism and the third auxiliary mechanism along the conveying direction of the battery tab sheet.

[0022] Furthermore, the material discharging mechanism includes a first clutch and a material discharging wheel connected to the first clutch; the first clutch and the material discharging wheel are both connected to the mounting plate.

[0023] Furthermore, the material receiving mechanism includes a driving motor installed on a mounting plate; the first pulley on the driving motor is connected to the second pulley provided on the second clutch through a transmission belt; the second clutch can be selectively connected to the material receiving wheel; the material receiving pulley is connected to the mounting plate.

[0024] Furthermore, the auxiliary mechanism includes a mounting shaft and at least two directional rotating wheels arranged on the mounting shaft; the mounting shaft is arranged on a mounting plate; the directional rotating wheel can only rotate in a single direction toward the conveying direction of the battery tab sheet; the first auxiliary mechanism and the fourth auxiliary mechanism are slidably connected to the mounting plate and can move up and down relative to the mounting plate; the second auxiliary mechanism and the third auxiliary mechanism are fixedly arranged on the mounting plate.

[0025] Furthermore, the guide mechanism includes a first guide assembly and a second guide assembly which are spaced apart; the first guide assembly is connected to the mounting plate; the second guide assembly is connected to the support platform; the first guide assembly includes a first base plate and a plurality of guide pulleys arranged thereon; the first base plate is fixedly connected to the mounting plate; the second guide assembly includes a second base plate and a plurality of guide pulleys arranged thereon; the second base plate is slidably arranged on the support platform for adjusting the distance from the first guide assembly; the guide pulley is provided with a groove for guiding and limiting which cooperates with the edge of the battery tab sheet.

[0026] Furthermore, a side plate is connected below the second bottom plate; a sliding plate is connected below the side plate; a first slider and a second slider are fixedly connected on both sides below the sliding plate respectively; the first slider is slidably connected to the first guide rail; the second slider is slidably connected to the second guide rail; a support seat is arranged between the first guide rail and the second guide rail; the support seat is slidably connected to the sliding plate; the first guide rail, the support seat and the second guide rail are all fixedly arranged on the support platform.

[0027] Furthermore, the pressing mechanism includes a sliding base slidably mounted on the guide base; the guide base is mounted on the support platform; the extension direction of the guide base is perpendicular to the conveying direction of the battery tab sheet; a positioning roller and a sliding roller are spaced apart above the sliding base; the sliding roller is movably arranged on the sliding base; a second sliding seat is formed at both ends of the sliding roller; the second sliding seat is connected to the telescopic motor through the first sliding seat; the telescopic motor is fixedly arranged on the top of the sliding base to control the sliding roller to approach or move away from the positioning roller.

[0028] Furthermore, the edge pressing mechanism includes a sliding bottom plate slidably mounted on a guide bottom plate; the guide bottom plate is mounted on a support platform; the extension direction of the guide bottom plate is perpendicular to the conveying direction of the battery tab sheet;

[0029] The sliding bottom plate is fixedly provided with a first side plate and a pressing wheel group installed on the first side plate, wherein the pressing wheel group comprises a first pressing wheel and a second pressing wheel which are arranged at intervals;

[0030] The guide bottom plate is fixedly provided with a second side plate and a pressing wheel group installed on the second side plate, and the pressing wheel group comprises a third pressing wheel and a fourth pressing wheel which are arranged at intervals.

[0031] (III) Beneficial effects

[0032] The beneficial effect of the utility model is to provide a pressing device for the tab sheet of a soft-pack lithium battery, which has the advantages of high automation, can better ensure that the tab sheet has good thickness uniformity, and has the characteristics of adjustable pressing thickness. In addition, burrs on the tab sheet can be effectively removed to improve the yield of lithium battery production. The middle part and the edge part of the tab sheet are pressed in different processes respectively, so as to improve the refinement of pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is the front view of the structure of the utility model;

[0035] Figure 2 It is a top view of the structure of the utility model;

[0036] Figure 3 It is a schematic diagram of the auxiliary mechanism of the utility model;

[0037] Figure 4 It is a schematic diagram of the guide mechanism of the utility model;

[0038] Figure 5 It is a schematic diagram of the pressing mechanism of the utility model;

[0039] Figure 6 This is a schematic diagram of the edge pressing mechanism of the utility model;

[0040] Figure 7 This is a top view of the edge pressing mechanism of the utility model;

[0041] Description of reference numerals:

[0042] 100, support table; 101, battery tab sheet; 102, mounting shaft; 103, directional rotating wheel; 110, mounting plate; 111, first auxiliary mechanism; 112, second auxiliary mechanism; 113, third auxiliary mechanism; 114, fourth auxiliary mechanism; 115, first cleaning device; 116, second cleaning device; 120, unloading mechanism; 121, first clutch; 122, unloading wheel; 130, receiving mechanism; 131, driving motor; 132, first pulley; 133, transmission belt; 134, second pulley; 135, second clutch; 136, receiving wheel; 140, first guide mechanism; 141, first guide assembly; 1411, first bottom plate; 142, second guide assembly; 143, guide pulley; 143 1. groove; 144. support seat; 145. first slider; 1451. first guide rail; 146. second slider; 1461. second guide rail; 147. sliding plate; 148. side plate; 149. second bottom plate; 150. first pressing mechanism; 151. guide base; 152. sliding base; 153. positioning roller; 154. sliding roller; 155. telescopic motor; 156. first sliding seat; 157. second sliding seat; 160. edge pressing mechanism; 161. guide bottom plate; 162. sliding bottom plate; 163. first side plate; 164. first edge pressing wheel; 165. second edge pressing wheel; 166. second side plate; 167. third edge pressing wheel; 168. fourth edge pressing wheel; 170. second pressing mechanism; 180. second guide mechanism. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] For example, please refer to Figure 1-7 As shown:

[0047] Please refer to Figure 1 The present application provides a crimping device for a soft-pack lithium battery tab sheet 101, the crimping device comprising a support table 100, the support table 100 being a workbench that can be selectively moved or fixed in a limited position, a mounting plate 110 and a discharge mechanism 120 and a receiving mechanism 130 disposed on the mounting plate 110 are disposed above the support table 100, the lithium battery tab sheet 101 is wound around the discharge mechanism 120 and the receiving mechanism 130, the discharge mechanism 120 is used to release the lithium battery tab sheet 101, and the receiving mechanism 130 is used to wind and recover the tab sheet after being pressed under power drive.

[0048] A first auxiliary mechanism 111, a first cleaning device 115, a second auxiliary mechanism 112, a first guiding mechanism 140, a first pressing mechanism 150, a pressing mechanism 160, a second cleaning device 116, a second pressing mechanism 170, a second guiding mechanism 180, a third auxiliary mechanism 113 and a fourth auxiliary mechanism 114 are arranged in sequence along the conveying direction of the tab sheet.

[0049] The first auxiliary mechanism 111 and the second auxiliary mechanism 112 are used to adjust the guidance and limitation of the battery tab sheet 101 so that the battery tab sheet 101 has a certain tension and the battery tab sheet 101 is flattened.

[0050] The first cleaning device 115 uses a blowing method to blow and clean the tab sheet before pressing to remove dust on the surface of the tab sheet.

[0051] The second cleaning device 116 uses a blowing method to blow and clean the tab sheet after pressing, so as to remove dust and burrs generated during the pressing process of the tab sheet.

[0052] The first guide mechanism 140 and the second guide mechanism 180 cooperate with each other to guide and transport the tab sheet. The first guide mechanism 140 is used to guide and transport the tab sheet before pressing, and the second guide mechanism 180 is used to guide and transport the tab sheet after pressing.

[0053] The first pressing mechanism 150 is used to press and level the entire surface of the tab sheet for the first time to improve the thickness uniformity of the tab sheet. The edge pressing mechanism 160 is used to press the edge of the tab sheet to improve the strength and thickness consistency of the edge. The second pressing mechanism 170 is used to press and level the entire surface of the tab sheet for the second time to further improve the thickness uniformity of the tab sheet.

[0054] The third auxiliary mechanism 113 and the fourth auxiliary mechanism 114 cooperate with each other to guide and limit the battery tab sheet 101 after being pressed and flattened, so that the battery tab sheet 101 has a certain tension, and the battery tab sheet 101 is flattened to facilitate the material collection mechanism 130 to wind and recycle the tab sheet.

[0055] Please continue reading Figure 2 The discharge mechanism 120 includes a first clutch 121 and a discharge wheel 122 connected to the first clutch 121. The first clutch 121 and the discharge wheel 122 are both connected to the mounting plate 110. The first clutch 121 is used to provide a certain tension to the discharge wheel 122, so that the discharge wheel 122 can only rotate in the discharge direction, and the discharge wheel 122 will only rotate when the tab sheet on the discharge wheel 122 is subjected to tension.

[0056] The material receiving mechanism 130 includes a driving motor 131, a first pulley 132, a transmission belt 133, a second pulley 134, a second clutch 135 and a material receiving wheel 136 installed on the mounting plate 110. The output shaft of the driving motor 131 is connected to the first pulley 132. The first pulley 132 and the second pulley 134 are connected to each other through the transmission belt 133. The second pulley 134 is connected to the second clutch 135. The second clutch 135 can be selectively connected to the material receiving wheel 136. The driving motor 131 is used to provide power to enable the first pulley 132, the transmission belt 133 and the second pulley 134 to rotate synchronously. When the second clutch 135 is connected to the material receiving wheel 136, the second clutch 135 is used to provide a certain tension to the material receiving wheel 136, so that the material receiving wheel 136 can only rotate in the direction of receiving, and the material receiving wheel 136 will only rotate when the driving motor 131 is turned on and the tab sheet is subjected to tension. When the second clutch 135 is disconnected from the receiving wheel 136, the power of the drive motor 131 will not be transmitted to the receiving wheel 136. At this time, the edge pressing equipment can be effectively protected to prevent the drive motor 131 from causing violent stretching and damage to the tab sheet when it is out of control.

[0057] Please continue reading Figure 3 The structures of the first auxiliary mechanism 111, the second auxiliary mechanism 112, the third auxiliary mechanism 113 and the fourth auxiliary mechanism 114 are exactly the same. The first auxiliary mechanism 111 includes a mounting shaft 102 and a directional rotating wheel 103. One mounting shaft 102 is matched with two directional rotating wheels 103. That is to say, the mounting shaft 102 is installed on the mounting plate 110, and the two directional rotating wheels 103 are arranged at intervals on the mounting shaft 102, and the two directional rotating wheels 103 can only rotate in one direction toward the conveying direction of the tab sheet, and cannot rotate in the opposite direction.

[0058] The first auxiliary mechanism 111 and the fourth auxiliary mechanism 114 are arranged in the same manner, and both can slide up and down relative to the mounting plate 110. The second auxiliary mechanism 112 and the third auxiliary mechanism 113 are arranged in the same manner, and the connection between the two and the mounting plate 110 is a fixed connection. By adjusting the first auxiliary mechanism 111 and the fourth auxiliary mechanism 114 away from the upper side of the support platform 100, the tension of the tab sheet can be increased, so that the tab sheet maintains a certain tension and flatness. By adjusting the second auxiliary mechanism 112 and the third auxiliary mechanism 113 toward the side close to the support platform 100, the tension of the tab sheet can be reduced, and the tab sheet can be prevented from being bent by external force, which is not convenient for subsequent pressing and flattening.

[0059] The first auxiliary mechanism 111 and the second auxiliary mechanism 112 are arranged at intervals, and a first cleaning device 115 is arranged therebetween. The first cleaning device 115 is installed on the mounting plate 110, and has a plurality of air holes arranged at intervals. The air holes can blow out gas with a certain force and direction to clean dust on the surface of the tab sheet, thereby improving the yield of the tab sheet.

[0060] The third auxiliary mechanism 113 and the fourth auxiliary mechanism 114 are arranged adjacent to each other and are located near the material receiving mechanism 130 , so as to assist the material receiving mechanism 130 in quickly receiving materials.

[0061] Please continue reading Figure 4 The structures of the first guide mechanism 140 and the second guide mechanism 180 are completely the same. The first guide mechanism 140 is used to guide and convey the tab sheet before pressing and flattening, and the second guide mechanism 180 is used to guide and convey the tab sheet after pressing and flattening. Taking the first guide mechanism 140 as an example, the first guide mechanism 140 includes a first guide assembly 141 and a second guide assembly 142 arranged at intervals. The first guide assembly 141 is connected to the mounting plate 110, and the second guide assembly 142 is connected to the support platform 100. The first guide assembly 141 includes a first bottom plate 1411 and a plurality of guide pulleys 143. The first bottom plate 1411 is connected to the mounting plate 110. The plurality of guide pulleys 143 are arranged at intervals along the conveying direction of the tab sheet and can rotate relative to the first bottom plate 1411. The middle position of the guide pulley 143 has a groove 1431. The groove 1431 is used to cooperate with the edge of the tab sheet to play a guiding and limiting role.

[0062] In one embodiment, the second guide assembly 142 includes a support seat 144, a first slider 145, a first guide rail 1451, a second slider 146, a second guide rail 1461, a sliding plate 147, a side plate 148, a second bottom plate 149 and a plurality of guide pulleys 143, wherein the support seat 144 and the first guide rail 1451 and the second guide rail 1461 are connected to the support platform 100, and the support seat 144 is located between the first guide rail 1451 and the second guide rail 1461, and the sliding plate 147 is slidably connected to the first guide rail 1451 and the second guide rail 1461; the sliding plate 147 is fixedly connected to the support platform 100. The top of the first slider 145 and the second slider 146; the first slider 145 is slidably connected to the first guide rail 1451; the second slider 146 is slidably connected to the second guide rail 1461; the side plate 148 is connected to the top of the sliding plate 147, and the second bottom plate 149 is connected to the top of the side plate 148. A plurality of guide pulleys 143 are arranged at intervals along the conveying direction of the pole ear sheet and can rotate relative to the second bottom plate 149. The middle position of the guide pulley 143 has a groove 1431, which is used to cooperate with the edge of the pole ear sheet to play a guiding and limiting role.

[0063] Compared with the previous embodiment, the present embodiment omits the structures of the sliding plate 147, the support seat 144, the second slider 146, and the second guide rail 1461. The side plate 148 is directly fixedly connected to the upper end of the first slider 145, and the linear movement of the side plate 148 is achieved by the sliding connection between the first slider 145 and the first guide rail 1451. Compared with the previous embodiment, the present embodiment has a simpler structure and can also achieve the linear displacement of the guide pulley 143 in the second guide assembly 142, but the stability during movement is poor.

[0064] Compared with the previous embodiment, the present embodiment further omits the side plate 148, and directly uses the second bottom plate 149 to be fixedly connected with the upper end of the first slider 145, and relies on the sliding connection between the first slider 145 and the first guide rail 1451 to realize the linear movement of the side plate 148; Compared with the previous embodiment, the structure of the present embodiment is further simplified, and the linear displacement of the guide pulley 143 in the second guide assembly 142 can also be realized, but the installation position of the guide pulley 143 is relatively low, which is not conducive to ensuring that the battery tab sheet 101 and the first guide rail 1451 maintain sufficient safety;

[0065] The number of guide pulleys 143 in the first guide mechanism 140 is the same as the number of guide pulleys 143 in the second guide mechanism 180. In some embodiments, the guide pulleys 143 in the first guide mechanism 140 and the guide pulleys 143 in the second guide mechanism 180 are spaced and arranged opposite to each other. In other embodiments, the guide pulleys 143 in the first guide mechanism 140 and the guide pulleys 143 in the second guide mechanism 180 are spaced and arranged alternately. The sliding plate 147 can move along the first guide rail 1451 and the second guide rail 1461 toward or away from the first guide assembly 141, and is used to adjust the spacing between the second guide assembly 142 and the first guide assembly 141, so as to improve the accuracy of guiding and conveying the tab sheet.

[0066] Please continue reading Figure 5 The first pressing mechanism 150 and the second pressing mechanism 170 are located between the first guiding mechanism 140 and the second guiding mechanism 180. The first pressing mechanism 150 and the second pressing mechanism 170 are arranged at intervals and are respectively located on opposite sides of the edge pressing mechanism 160. The structures of the first pressing mechanism 150 and the second pressing mechanism 170 are completely the same. The first guiding mechanism 140 is used to press and flatten the tab sheet for the first time, and the second guiding mechanism 180 is used to press and flatten the tab sheet for the second time. The edge pressing mechanism 160 is used to press the edge of the tab sheet that has completed the first pressing and flattening to improve the strength and thickness uniformity of the edge of the tab sheet.

[0067] Taking the structure of the first pressing mechanism 150 as an example, the first pressing mechanism 150 includes a guide base 151 and a sliding base 152 slidably installed on the guide base 151. The sliding base 152 can move forward and backward on the guide base 151 toward the conveying direction of the pole tab sheet perpendicular to the pole tab sheet, so that the first pressing mechanism 150 and the second pressing mechanism 170 are aligned with the conveying direction of the pole tab sheet. A positioning roller 153, a sliding roller 154, a first sliding seat 156, a second sliding seat 157 and a telescopic motor 155 are arranged above the sliding base 152. The telescopic motor 155 is used to drive the first sliding seat 156 to move downward, and the first sliding seat 156 drives the second sliding seat 157 to slide downward. Since the sliding roller 154 is installed on the second sliding seat 157, the sliding roller 154 can be driven to move toward the side close to the positioning roller 153, so as to realize the pressing action on the tab sheet. By controlling the telescopic amount of the telescopic motor 155, the distance between the sliding roller 154 and the positioning roller 153 can be controlled, so that the pressing force of the two on the tab sheet can be controlled, and then the thickness of the tab sheet can be controlled. The sliding roller 154 and the positioning roller 153 cooperate with each other to realize the pressing of the tab sheet and assist the tab sheet in being transmitted toward one side of the receiving mechanism 130.

[0068] Please continue reading Figure 6 and Figure 7 The edge pressing mechanism 160 includes a guide bottom plate 161 and a sliding bottom plate 162 slidably connected to the guide bottom plate 161. The sliding bottom plate 162 can move forward and backward on the guide bottom plate 161 in the direction perpendicular to the conveying direction of the tab sheet, so that the edge pressing mechanism 160 is aligned with the conveying direction of the tab sheet. The sliding bottom plate 162 is provided with a first side plate 163 and a first edge pressing wheel 164 and a second edge pressing wheel 165 installed on the first side plate 163. The first edge pressing wheel 164 and the second edge pressing wheel 165 are arranged at intervals. The guide bottom plate 161 is provided with a second side plate 166 and a third edge pressing wheel 167 and a fourth edge pressing wheel 168 installed on the second side plate 166. The third edge pressing wheel 167 and the fourth edge pressing wheel 168 are arranged at intervals.

[0069] When the sliding bottom plate 162 can move forward and backward on the guide bottom plate 161 in the direction perpendicular to the conveying direction of the tab sheet, the distance between the first pressing wheel 164 and the third pressing wheel 167 can be adjusted to improve the accuracy of the guidance. In addition, the first pressing wheel 164 can move toward or away from the second pressing wheel 165 under the drive of an external force, and the third pressing wheel 167 can move toward or away from the fourth pressing wheel 168 under the action of an external force, so as to adjust the pressing force. In addition, along the conveying direction of the tab sheet, the distance between the first pressing wheel 164 and the third pressing wheel 167 gradually increases, which can ensure a more accurate guiding effect on the one hand, and on the other hand, make the material of the tab sheet gather to the middle position, avoid the tab sheet from overflowing toward the edge, and improve the material utilization rate of the tab sheet.

[0070] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A soft-pack lithium battery tab sheet edge pressing device, characterized in that: include A support table (100) for supporting; A material discharge mechanism (120), which is arranged on the support platform (100) and is used for releasing the battery tab sheet (101); A material collection mechanism (130) is arranged on the support platform (100) and is used to wind and recover the pressed battery tab sheet (101) under power drive; An auxiliary mechanism, at least one of which is provided for guiding and limiting the battery tab sheet (101); A pressing mechanism, which presses and flattens the battery tab sheet (101) on a conveying path of the battery tab sheet (101); A pressing mechanism (160) is used to press the edge of a battery tab sheet (101) on the conveying path of the battery tab sheet (101); the pressing mechanism (160) comprises two pressing wheel groups respectively located at the two sides of the battery tab sheet (101); the pressing wheel groups comprise pressing wheels respectively located at the upper and lower sides of the battery tab sheet (101); the two pressing wheel groups are arranged at an angle, and the spacing between the pressing wheel groups gradually increases along the conveying direction of the battery tab sheet (101).

2. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 1, characterized in that: A mounting plate (110) is arranged on the support platform (100); the material discharge mechanism (120) and the material collection mechanism (130) are respectively arranged at two ends of the mounting plate (110).

3. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 2, characterized in that: The auxiliary mechanism comprises a first auxiliary mechanism (111), a second auxiliary mechanism (112), a third auxiliary mechanism (113), and a fourth auxiliary mechanism (114) which are arranged in sequence along the conveying direction of the battery tab sheet (101); the first auxiliary mechanism (111) and the second auxiliary mechanism (112) are arranged close to the material discharge mechanism (120); the third auxiliary mechanism (113) and the fourth auxiliary mechanism (114) are arranged close to the material collection mechanism (130); a first cleaning device (115) is arranged between the first auxiliary mechanism (111) and the second auxiliary mechanism (112); and the first cleaning device (115) is mounted on the mounting plate (110); The guide mechanism comprises a first guide mechanism (140) and a second guide mechanism (180); The pressing mechanism comprises a first pressing mechanism (150) and a second pressing mechanism (170); A first guiding mechanism (140), a first pressing mechanism (150), a pressing plate mechanism, a second cleaning device (116), a second pressing mechanism (170), and a second guiding mechanism (180) are arranged in sequence between the second auxiliary mechanism (112) and the third auxiliary mechanism (113) along the conveying direction of the battery tab sheet (101).

4. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 2 or 3, characterized in that: The material discharge mechanism (120) comprises a first clutch (121) and a material discharge rotating wheel (122) connected to the first clutch (121); the first clutch (121) and the material discharge rotating wheel (122) are both connected to the mounting plate (110).

5. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 2 or 3, characterized in that: The material receiving mechanism (130) comprises a driving motor (131) mounted on a mounting plate (110); a first pulley (132) on the driving motor (131) is connected to a second pulley (134) provided on a second clutch (135) via a transmission belt (133); the second clutch (135) can be selectively connected to a material receiving rotating wheel (136); and the material receiving pulley is connected to the mounting plate (110).

6. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 3, characterized in that: The auxiliary mechanism comprises a mounting shaft (102) and at least two directional rotating wheels (103) arranged on the mounting shaft (102); the mounting shaft (102) is arranged on a mounting plate (110); the directional rotating wheel (103) can only rotate in a single direction towards the conveying direction of the battery tab sheet (101); the first auxiliary mechanism (111) and the fourth auxiliary mechanism (114) are slidably connected to the mounting plate (110) and can move up and down relative to the mounting plate (110); the second auxiliary mechanism (112) and the third auxiliary mechanism (113) are fixedly arranged on the mounting plate (110).

7. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 3, characterized in that: The guide mechanism comprises a first guide assembly (141) and a second guide assembly (142) which are arranged at intervals; the first guide assembly (141) is connected to the mounting plate (110); the second guide assembly (142) is connected to the support platform (100); the first guide assembly (141) comprises a first bottom plate (1411) and a plurality of guide pulleys (143) arranged thereon; the first bottom plate (1411) is fixedly connected to the mounting plate (110); the second guide assembly (142) comprises a second bottom plate (149) and a plurality of guide pulleys (143) arranged thereon; the second bottom plate (149) is slidably arranged on the support platform (100) for adjusting the distance from the first guide assembly (141); the guide pulley (143) is provided with a groove (1431) for guiding and limiting, which cooperates with the edge of the battery tab sheet (101).

8. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 7, characterized in that: A side plate (148) is connected below the second bottom plate (149); a sliding plate (147) is connected below the side plate (148); a first sliding block (145) and a second sliding block (146) are fixedly connected to the two sides below the sliding plate (147); the first sliding block (145) is slidably connected to the first guide rail (1451); the second sliding block (146) is slidably connected to the second guide rail (1461); a support seat (144) is arranged between the first guide rail (1451) and the second guide rail (1461); the support seat (144) is slidably connected to the sliding plate (147); the first guide rail (1451), the support seat (144) and the second guide rail (1461) are all fixedly arranged on the support platform (100).

9. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 2 or 3, characterized in that: The pressing mechanism comprises a sliding base (152) slidably mounted on a guide base (151); the guide base (151) is mounted on a support platform (100); the extension direction of the guide base (151) is perpendicular to the conveying direction of the battery tab sheet (101); a positioning roller (153) and a sliding roller (154) are arranged above the sliding base (152) at intervals; the sliding roller (154) is movably arranged on the sliding base (152); a second sliding seat (157) is formed at both ends of the sliding roller (154); the second sliding seat (157) is connected to a telescopic motor (155) via a first sliding seat (156); the telescopic motor (155) is fixedly arranged on the top of the sliding base (152) and is used to control the sliding roller (154) to approach or move away from the positioning roller (153).

10. The edge pressing device for a soft-pack lithium battery tab sheet according to claim 2 or 3, characterized in that: The edge pressing mechanism (160) comprises a sliding base plate (162) slidably mounted on a guide base plate (161); the guide base plate (161) is mounted on a support platform (100); the extension direction of the guide base plate (161) is perpendicular to the conveying direction of the battery tab sheet (101); The sliding bottom plate (162) is fixedly provided with a first side plate (163) and a pressing wheel assembly mounted on the first side plate (163), wherein the pressing wheel assembly comprises a first pressing wheel (164) and a second pressing wheel (165) which are arranged at an interval; The guide bottom plate (161) is fixedly provided with a second side plate (166) and a pressing wheel group mounted on the second side plate (166), wherein the pressing wheel group comprises a third pressing wheel (167) and a fourth pressing wheel (168) which are arranged at an interval.

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