Tab rubberizing equipment

Abstract

The invention relates to the technical field of battery production, and particularly discloses tab rubberizing equipment which comprises a tab rubberizing mechanism and an adjusting platform, the tab rubberizing mechanism comprises two tab rubberizing modules arranged at intervals in the first direction, and each tab rubberizing module comprises a pressing head and a rubberizing driver for driving the pressing head to move in the first direction; the rubberizing surfaces of the two pressure heads are opposite to each other along a first direction and can fix or loosen a tab adhesive tape; the adjusting platform comprises an adjusting part and a platform part, the platform part is configured to support a coating part of the pole piece, a pole lug of the pole piece is located between the rubberizing surfaces of the two pressing heads, and the adjusting part can adjust the platform part to move in a plane perpendicular to the first direction. According to the tab rubberizing equipment, the relative position of the tab and the rubberizing surface of the pressure head can be adjusted through the adjusting platform, so that the tab adhesive tape is compacted and pasted on the tab, the problem that a gap possibly exists between a partial region of the tab adhesive tape and the tab is effectively solved, and the tab adhesive tape is prevented from falling off or shifting.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to electrode tab bonding equipment. Background Technology

[0002] The tab bonding equipment is a key piece of equipment in lithium battery manufacturing. It is mainly responsible for accurately attaching tab tape to the tab area of ​​the battery electrode, which plays an important role in preventing short circuits and providing insulation protection. The quality of the bonding directly affects the safety, reliability and production yield of the battery. It is an indispensable core process to ensure battery product quality and production efficiency.

[0003] Existing electrode tab bonding equipment typically includes an electrode tab bonding mechanism and a support platform. The coated part of the electrode sheet is fixed on the support platform, and the electrode tab of the electrode sheet is suspended in the air. The two pressure heads of the electrode tab bonding mechanism are located on both sides of the electrode tab in a vertical direction. The bonding surfaces of the two pressure heads, carrying the electrode tab tape, clamp the electrode tab in a vertical direction to apply the electrode tab tape to the electrode tab, thereby completing the bonding process.

[0004] However, the support platform of the aforementioned tab-applying equipment is usually fixed, and the pressure head can only move vertically. When the pressure head presses the tab tape onto the tab, due to installation errors, it cannot be guaranteed that the entire tab tape is pressed firmly against the tab. There may be gaps between the tab tape and the tab in some areas, which can easily lead to the tab tape falling off or shifting during subsequent transportation.

[0005] Therefore, there is an urgent need for electrode tab bonding equipment to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a tab bonding device to solve the problem that existing tab bonding devices cannot guarantee that the entire tab tape is firmly pressed against the tab, and there may be gaps between the tab tape and the tab in some areas. In subsequent transportation, the tab tape is prone to falling off or shifting.

[0007] One aspect of the present invention provides a tab-applying apparatus configured to apply tab tape to an electrode sheet, the electrode sheet comprising an interconnected coating portion and a tab, the tab-applying apparatus comprising: The tab applicator includes two tab applicator modules spaced apart along a first direction. Each tab applicator module includes a pressure head, a pressure driver, and an unwinding assembly. The pressure driver drives the pressure head to move along the first direction. The applicator surfaces of the two pressure heads are opposite each other along the first direction. The unwinding assembly is configured to provide the tab tape to the applicator surfaces. The applicator surfaces are capable of fixing or releasing the tab tape. An adjustment platform includes an adjustment section and a platform section, the platform section being configured to support the coating section, the tabs being located between the adhesive surfaces of the two pressure heads, and the adjustment section being capable of adjusting the platform section to move in a plane perpendicular to the first direction; A hopper mechanism, wherein the electrode sheet can be placed; The transfer mechanism is capable of transferring the electrode sheet within the hopper mechanism to the platform section; And / or transfer the electrode sheet on the platform section to the hopper mechanism.

[0008] The tab bonding equipment provided by the above technical solution has at least the following beneficial effects: When this tab-applying device is in operation, adhesive is first prepared on the applicator surface of the pressure head to fix the tab tape onto the corresponding applicator surface. Then, the adjusting unit adjusts the position of the platform to align the pre-applied tab with the tab tape on the applicator surface. The pressure driver drives the corresponding pressure head to move along a first direction, thereby clamping the tab and tab tape between the applicator surfaces of the two pressure heads, thus applicating the tab tape onto the two sidewalls of the tab along the first direction. Subsequently, the pressure driver drives the pressure head away from the tab, and the adjusting unit moves the platform to misalign the tab tape with the applicator surface, allowing the two pressure heads to clamp the tab and tab tape again. This process is repeated to compact the tab tape onto the tab, effectively improving the problem of gaps between the tab tape and the tab in certain areas, and preventing the tab tape from falling off or shifting during subsequent transport. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the electrode tab adhesive device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the tab adhesive mechanism in an embodiment of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the support roller structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the tab adhesive mechanism in an embodiment of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the adsorption surface of the pressure head in an embodiment of the present invention; Figure 6 This is a schematic diagram of the adjustment platform in an embodiment of the present invention; Figure 7 This is a schematic diagram of the silo mechanism in an embodiment of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the silo mechanism in an embodiment of the present invention. Figure 2 ; Figure 9 for Figure 8 A magnified view of a section at point A in the middle; Figure 10 This is a schematic diagram of the silo mechanism in an embodiment of the present invention. Figure 3 ; Figure 11 This is a schematic diagram of the structure of the movable hopper in an embodiment of the present invention; Figure 12 This is a schematic diagram of the silo mechanism in an embodiment of the present invention (excluding the movable silo); Figure 13 for Figure 12 A magnified view of a section at point B in the middle.

[0010] In the picture: 100. Electrode film; 200. Electrode sheet; 201. Coating section; 202. Electrode; 1. Tab adhesive application mechanism; 11. Tab adhesive application module; 111. Pressure head; 1111. Waist-shaped hole; 1112. Adhesive application surface; 1113. Adsorption area; 1114. Second negative pressure hole; 112. Adhesive pressing driver; 1121. First adhesive pressing driver; 1122. Second adhesive pressing driver; 1123. Bracket; 1124. Slider; 113. Adhesive clamping assembly; 114. Adhesive cutting assembly; 1141. Cutting knife; 1142. Adhesive cutting driver; 115. Adhesive pulling assembly; 1151. Adhesive pulling driver; 1152. Adhesive pulling gripper; 1153. First adhesive pulling driver; 1154. Second adhesive pulling driver; 1155. First adhesive pulling fixing part; 1156. First adhesive pulling sliding part; 1157. Adjustment Components; 1158, First adjusting bolt; 1159, Second adjusting bolt; 116, Unwinding assembly; 1161, Unwinding body; 1162, Unwinding gripper; 1160, Support roller; 1181, Support shaft; 1182, Sleeve; 1183, Limiting ring; 1184, Bearing; 1163, Fixed support roller; 1164, Sliding support roller; 1165, Drive assembly; 1166, Elastic element; 1167, Limiting seat; 1168, Fixed part; 1169, Sliding part; 1170, Fixed block; 1171, Third adjusting bolt; 1172, Sliding block; 1173, Sliding rail; 12, Buffer module; 121, Buffer driver; 122, Sliding plate; 123, Rotating roller; 13, Back plate; 2. Adjustment platform; 21. Adjustment unit; 211. First adjustment cylinder; 212. Second adjustment cylinder; 213. Rotary cylinder; 22. Platform unit; 23. Correction camera; 3. Hopper mechanism; 31. Moving hopper; 311. Hopper body; 3111. Base plate; 3112. Sliding plate; 3113. Angle plate; 3114. Horizontal plate; 3115. Vertical plate; 3116. First oblong hole; 3117. Second oblong hole; 312. Support plate; 3121. Mounting hole; 313. Material position sensor; 314. Residual material detection sensor; 32. Fixed base; 321. Support plate; 322. Fixed assembly; 3221. Limit block; 3222. Guide strip; 3223. Support block; 3224. Locking bolt; 3225. Position sensor; 323. Connecting plate; 324. Fixing component; 33. Lifting assembly; 331. Lead screw; 332. Nut; 333. Drive component; 334. Guide component; 335. Fixing plate; 336. Top block; 337. Limit sensor; 3371. Slotted photoelectric sensor; 3372. Baffle plate; 34. Peeling assembly; 341. Peeling bracket; 3411. Fixing bracket; 3412. Sliding bracket; 3413. Third oblong hole; 3414. Adjustment hole; 3415. Adjustment threaded hole; 3416. Telescopic component; 3417. Initial adjustment rod; 342. Peeling component; 3421. Brush; 3422. Air nozzle; 4. Transfer agency. Detailed Implementation

[0011] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0013] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0014] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0015] Electrode 200: This refers to the part in a lithium battery used to store electrical energy. Electrode 200 is usually divided into tab 202 and coating 201, with the active material coated on the coating 201. Positive electrode 200 uses aluminum foil as the current collector, while negative electrode 200 mostly uses copper foil.

[0016] Tab 202: This is a small area of ​​uncoated active material reserved at one end of electrode 200. Its main function is to conduct current from electrode 200 to the external circuit. Simply put, it is one of the key components used to achieve current conduction between the inside and outside of the battery.

[0017] like Figures 1 to 13As shown, this embodiment provides a tab-applying device configured to apply tab tape to an electrode sheet 200. The electrode sheet 200 includes a coating portion 201 and a tab 202 connected to each other. The tab-applying device includes a tab-applying mechanism 1, an adjusting platform 2, a hopper mechanism 3, and a transfer mechanism 4. The tab-applying mechanism 1 includes two tab-applying modules 11 spaced apart along a first direction. Each tab-applying module 11 includes a pressure head 111, a pressure driver 112, and an unwinding assembly 116. The pressure driver 112 drives the pressure head 111 to move along the first direction, and the applicating surfaces 1112 of the two pressure heads 111 face each other along the first direction. The unwinding assembly... Part 116 is configured to provide tab tape to adhesive surface 1112, which can fix or loosen the tab tape; the adjustment platform 2 includes an adjustment part 21 and a platform part 22, the platform part 22 is configured to support the coating part 201, the tab 202 is located between the adhesive surfaces 1112 of the two pressure heads 111, and the adjustment part 21 can adjust the platform part 22 to move in a plane perpendicular to the first direction; the electrode 200 can be placed in the hopper mechanism 3; the transfer mechanism 4 can transfer the electrode 200 in the hopper mechanism 3 to the platform part 22; and / or transfer the electrode 200 on the platform part 22 to the hopper mechanism 3. When the tab applicator is in operation, the applicator first prepares adhesive on the applicator surface 1112 of the pressure head 111 so that the tab tape is fixed on the corresponding applicator surface 1112. Then, the adjustment unit 21 adjusts the position of the platform unit 22 so that the position of the tab 202 with pre-applied adhesive is opposite to the tab tape on the applicator surface 1112. The pressure driver 112 drives the corresponding pressure head 111 to move along the first direction, so that the applicator surfaces 1112 of the two pressure heads 111 clamp the tab 202 and the tab tape, so as to apply the tab tape to the two side walls of the tab 202 along the first direction. Subsequently, the pressure driver 112 drives the pressure head 111 away from the tab 202, and the adjustment unit 21 adjusts the platform unit 22 to move so that the tab tape and the adhesive surface 1112 are misaligned, so that the two pressure heads 111 clamp the tab 202 and the tab tape again. The above operation is repeated to press the tab tape firmly onto the tab 202, which effectively improves the problem that there may be gaps between the tab tape and the tab 202 in some areas, and avoids the problem of the tab tape falling off or shifting during subsequent transportation.

[0018] In one embodiment, the transfer mechanism 4 can transfer the electrode sheet 200 in the hopper mechanism 3 to the platform section 22, thereby realizing automatic feeding of the electrode tab bonding equipment. In one embodiment, the transfer mechanism 4 can transfer the electrode sheet 200 on the platform section 22 to the hopper mechanism 3, thereby realizing automatic unloading of the electrode tab bonding equipment. In one embodiment, the transfer mechanism 4 can transfer the electrode sheet 200 in the hopper mechanism 3 to the platform section 22, and simultaneously, the transfer mechanism 4 can also transfer the electrode sheet 200 on the platform section 22 to the hopper mechanism 3, thereby realizing automatic feeding and unloading of the electrode tab bonding equipment.

[0019] Optionally, the first direction is the Z direction in the attached figure, specifically the vertical direction; the second direction is the X direction in the attached figure, specifically the length direction of the adhesive surface 1112; and the third direction is the Y direction in the attached figure, specifically the width direction of the adhesive surface 1112.

[0020] For example, when the pressure head 111 clamps the tab for the first time, the adhesive surface 1112 of the pressure head 111 covers the entire pre-adhesive area of ​​the tab 202, and the tab tape on the adhesive surface 1112 covers the entire pre-adhesive area of ​​the tab 202; after the pressure head 111 first applies the tab tape to the pre-adhesive area, the pressure head 111 separates from the tab 202, at which point the tab tape remains in the pre-adhesive area of ​​the tab 202, and then the adjustment unit 21 adjusts the platform unit 22 to move. The adhesive surface 1112 is moved so that it faces half of the tab tape on the tab 202, and the pressure driver 112 clamps the tab 202 and the tab tape again. Then, the adjustment unit 21 adjusts the platform unit 22 to move so that the adhesive surface 1112 faces the other half of the tab tape on the tab 202, and the pressure driver 112 clamps the tab 202 and the tab tape again. Through the above steps, the tab tape is pressed and adhered to the tab 202.

[0021] Optionally, the platform section 22 has a first negative pressure hole on its surface that is in contact with the electrode 200, and a first negative pressure cavity is provided inside the platform section 22. The first negative pressure cavity is connected to the first negative pressure hole, and the negative pressure device provides negative pressure to the first negative pressure cavity.

[0022] Optionally, a second negative pressure chamber is provided inside the pressure head 111, and a second negative pressure hole 1114 communicating with the second negative pressure chamber is provided on the adsorption area 1113 of the adhesive surface 1112. The negative pressure device is connected to the second negative pressure chamber, thereby creating a negative pressure in the adsorption area 1113 to achieve adsorption and fixation of the tab tape. When the tab tape is attached to the tab 202, the negative pressure device stops working, thereby separating the tab tape on the pressure head 111 and the tab 202.

[0023] like Figure 5 As shown, optionally, the length of the adsorption area 1113 along the second direction is a mm, and the length of the adhesive surface 1112 along the second direction is b mm, where a mm / b mm ≥ 0.5. In this embodiment, if the length a of the adsorption area 1113 along the second direction is too short, it can easily lead to poor adsorption effect, resulting in problems such as the tab tape shifting or falling off. Therefore, a mm / b mm ≥ 0.5 is required to ensure that the adsorption area 1113 can stably adsorb and fix the tab tape.

[0024] Optionally, the ratio of amm / bmm can be one of 0.5, 0.6, 0.7, 0.8, 0.9 and 1.

[0025] Optionally, the distance between the adsorption area 1113 and the side of the adhesive surface 1112 near the platform portion 22 is cmm, where 3mm ≤ cmm ≤ 8mm. In this embodiment, if the distance between the adsorption area 1113 and the side of the adhesive surface 1112 near the platform portion 22 is too small (cmm), when the adhesive surface 1112 presses the tab tape, the edge of the adhesive surface 1112 will be too close to the root of the tab (the connection between the tab 101 and the coating portion 102), resulting in high stress at the root of the tab. Vibration during equipment operation will have a significant impact on the root of the tab, making it prone to tearing. If the distance cmm is too large, it will occupy the overall space of the tab adhesive module. Therefore, the value range of the distance cmm is limited to: 3mm ≤ cmm ≤ 8mm.

[0026] Optionally, the value of cmm can be one of 3mm, 4mm, 5mm, 6mm, 7mm and 8mm.

[0027] Optionally, a buffer pad is provided on the adhesive surface 1112, and multiple second negative pressure holes 1114 pass through the buffer pad. The deformation of the buffer pad is greater than or equal to 1 mm. In this embodiment, the buffer pad is used to adapt to the height difference between the base of the electrode tab and the coating area, so as to better press the electrode tab tape together.

[0028] Optionally, the adjustment unit 21 can adjust the platform unit 22 to move along a second direction; the adjustment unit 21 can adjust the platform unit 22 to move along a third direction; the adjustment unit 21 can adjust the platform unit 22 to rotate, and the rotation axis of the platform unit 22 is set along a first direction. In this embodiment, the above-mentioned configuration enables the platform unit 22 to move in a plane perpendicular to the first direction.

[0029] Optionally, the adjustment unit 21 includes a first adjustment cylinder 211, a second adjustment cylinder 212, and a rotary cylinder 213. The first adjustment cylinder 211 drives the second adjustment cylinder 212 to move in a second direction, the second adjustment cylinder 212 drives the rotary cylinder 213 to move in a third direction, and the rotary cylinder 213 drives the platform unit 22 to rotate. The rotation axis of the platform unit 22 is set along a first direction.

[0030] Optionally, the adjustment platform 2 also includes a correction camera 23, which is used to photograph the electrode 200 on the platform section 22. In this embodiment, based on the position of the electrode 200 on the platform section 22 captured by the correction camera 23, the platform section 22 is adjusted by the adjustment section 21 so that the pressure head 111 can accurately attach the electrode tab tape to the electrode tab 202.

[0031] Optionally, the tab applicator module 11 further includes a clamping assembly 113, a cutting assembly 114, and a pulling assembly 115. The clamping assembly 113 is located on one side of the applicator surface 1112 along the second direction and can clamp or release the tab tape located on one side of the applicator surface 1112. The cutting assembly 114 can cut the tab tape between the applicator surface 1112 and the clamping assembly 113. The pulling assembly 115 includes a pulling driver 1151 and a pulling gripper 1152. The pulling driver 1151 drives the pulling gripper 1152 to clamp the tab tape and move it from one side of the applicator surface 1112 to the other side along the second direction. In this embodiment, when the tab applicator module 11 is working, it first enters the adhesive preparation process. The adhesive pull driver 1151 drives the adhesive pull gripper 1152 to clamp the tab tape from one side of the adhesive surface 1112 along the second direction and move it to the other side of the adhesive surface 1112. Then, the adhesive clamping assembly 113 fixes the tab tape on one side of the adhesive surface 1112, and the adhesive pressing assembly adsorbs the tab tape opposite to the adhesive surface 1112. Then, the adhesive cutting assembly 114 cuts the tab tape between the adhesive surface 1112 and the adhesive clamping assembly 113, and the adhesive pull gripper 1152 releases the clamped tab tape, thus completing the adhesive preparation process. Subsequently, the adhesive pressing assembly completes the applicator process.

[0032] Optionally, the adhesive-pulling driver 1151 drives the adhesive-pulling gripper 1152 to include a first adhesive-pulling stroke and a second adhesive-pulling stroke. During the first adhesive-pulling stroke, the adhesive-pulling gripper 1152 moves from one side of the adhesive surface 1112 to the other side along a second direction. During the second adhesive-pulling stroke, the adhesive-pulling gripper 1152 releases the tab tape and moves away from the tab tape. In this embodiment, after completing the first adhesive-pulling stroke, the tab tape is positioned opposite the adhesive surface 1112, allowing the adhesive surface 1112 to adsorb and fix the tab tape. Completing the second adhesive-pulling stroke avoids easy interference between the tab tape and the adhesive-pulling gripper 1152, improves the positional accuracy of the tab tape on the tab 202, and avoids adhesive application failure.

[0033] Optionally, the adhesive gripper 1152 is a gripper cylinder, the specific structure of which is existing technology and will not be described in detail here.

[0034] Optionally, the glue-pulling driver 1151 includes a first glue-pulling driver 1153 and a second glue-pulling driver 1154. The first glue-pulling driver 1153, the second glue-pulling driver 1154 and the glue-pulling gripper 1152 are sequentially connected for transmission. During the first glue-pulling stroke, the first glue-pulling driver 1153 drives the second glue-pulling driver 1154 to move. During the second glue-pulling stroke, the second glue-pulling driver 1154 drives the glue-pulling gripper 1152 to move.

[0035] Optionally, the first adhesive-pulling drive member 1153 includes a first adhesive-pulling fixing part 1155, a first adhesive-pulling sliding part 1156, and an adjusting member 1157. The first adhesive-pulling sliding part 1156 is slidably disposed on the first adhesive-pulling fixing part 1155 along a second direction. The first adhesive-pulling fixing part 1155 can drive the first adhesive-pulling sliding part 1156 to have two states: relative sliding and relative fixing. The adjusting member 1157 can adjust the sliding stroke of the first adhesive-pulling sliding part 1156 on the first adhesive-pulling fixing part 1155. The second adhesive-pulling drive member 1154 is disposed on the first adhesive-pulling sliding part 1156. In this embodiment, the first adhesive-pulling fixing part 1155 can drive the first adhesive-pulling sliding part 1156 to slide along the second direction on the first adhesive-pulling fixing part 1155, so as to drive the second adhesive-pulling drive member 1154 and the adhesive-pulling gripper 1152 to slide in the first adhesive-pulling stroke. The sliding stroke of the first adhesive-pulling sliding part 1156 on the first adhesive-pulling fixing part 1155 is adjusted by the adjusting part 1157, so that the first adhesive-pulling stroke can be adapted to the size of the adhesive surface 1112 with different widths along the second direction and the size of the adhesive surface 1112 at different positions along the second direction, so as to ensure that the adhesive-pulling claw 1152 can slide from one side to the other side of the adhesive surface 1112 along the second direction.

[0036] Optionally, both the first adhesive-pulling drive component 1153 and the second adhesive-pulling drive component 1154 are cylinders.

[0037] Optionally, the adjusting component 1157 includes a first adjusting bolt 1158 and a second adjusting bolt 1159. The first adjusting bolt 1158 and the second adjusting bolt 1159 are spaced apart along the second direction and are respectively screwed to the first adhesive-pulling fixing part 1155. The first adhesive-pulling sliding part 1156 is opposite to the first adjusting bolt 1158 and the second adjusting bolt 1159 along the second direction. The axial direction of the first adjusting bolt 1158 and the axial direction of the second adjusting bolt 1159 are both arranged along the second direction. In this embodiment, two support portions are spaced apart along the second direction on the first adhesive-pulling sliding portion 1156. The first adjusting bolt 1158 and the second adjusting bolt 1159 are screwed to the two support portions respectively. When the first adhesive-pulling sliding portion 1156 slides relative to the first adhesive-pulling fixing portion 1155 along the second direction and abuts against the first adjusting bolt 1158, the adhesive-pulling claw 1152 is located on one side of the adhesive surface 1112 along the second direction. When the first adhesive-pulling sliding portion 1156 slides relative to the first adhesive-pulling fixing portion 1155 along the second direction and abuts against the second adjusting bolt 1159, the adhesive-pulling claw 1152 is located on the other side of the adhesive surface 1112 along the second direction. By screwing the first adjusting bolt 1158 and / or the second adjusting bolt 1159, the distance and position between the first adjusting bolt 1158 and the second adjusting bolt 1159 can be adjusted to adjust the length and position of the first adhesive-pulling stroke.

[0038] Optionally, the pressure driver 112 drives the pressure head 111 to include a first pressure stroke and a second pressure stroke. In the first pressure stroke, the adhesive surface 1112 is bonded to the back of the tab tape between the adhesive pulling assembly 115 and the adhesive clamping assembly 113. In the second pressure stroke, the adhesive surface 1112 is bonded to the tab 202. In this embodiment, the pressure driver 112 drives the pressure head 111 to move along a first direction. The pressure head 111 has an adhesive surface 1112 on one side along the first direction. In the first pressure stroke, the pressure driver 112 drives the pressure head 111 to move so that the adhesive surface 1112 of the pressure head 111 is bonded to the back of the tab tape, thereby adsorbing the tab tape. In the second pressure stroke, the pressure head 111 pushes the cut tab tape closer to the tab 202 until the adhesive surface 1112 is bonded to the tab 202, so that the tab tape is bonded to the tab 202.

[0039] Optionally, the adhesive pressing driver 112 includes a first adhesive pressing driver 1121 and a second adhesive pressing driver 1122. During the first adhesive pressing stroke, the first adhesive pressing driver 1121 drives the pressing head 111 to move, and during the second adhesive pressing stroke, the second adhesive pressing driver 1122 drives the pressing head 111 to move. In this embodiment, the above arrangement is beneficial to the accuracy of the adjustment of the first and second adhesive pressing strokes, and avoids the superposition of errors.

[0040] Optionally, the adhesive pressing driver 112 further includes a bracket 1123 and a slider 1124. The slider 1124 is slidably disposed on the bracket 1123 along a first direction. The pressure head 111 is provided with an oblong hole 1111, which extends along a second direction. A bolt passes through the oblong hole 1111 and is screwed to the slider 1124. In this embodiment, the slider 1124 is slidably disposed on the bracket along the first direction. Therefore, the adhesive pressing driver 112 drives the slider 1124 to slide, thereby causing the pressure head 111 to slide relative to the bracket 1123 along the first direction with the slider 1124. The pressure head 111 is provided with an oblong hole 1111, thereby allowing the position of the pressure head 111 relative to the slider 1124 along the second direction to make the adhesive surface 1112 of the pressure head 111 correspond to the tab 202.

[0041] Optionally, the driving part of the first adhesive pressing drive 1121 is disposed opposite to the slider 1124 along the first direction, and the driving part of the second adhesive pressing drive 1122 is connected to the slider 1124. When the first adhesive pressing drive 1121 is working, the driving head of the first adhesive pressing drive 1121 abuts against the slider 1124 and drives the slider 1124 to move along the first direction. At this time, the second adhesive pressing drive 1122 acts as a damper, so that when the first adhesive pressing drive 1121 is not working, the slider 1124 is fixed relative to the bracket 1123. When the first adhesive pressing stroke ends, the second adhesive pressing drive 1122 works and enters the second adhesive pressing stroke. At this time, the first adhesive pressing drive 1121 and the slider 1124 are separated.

[0042] In the prior art, when the tab tape is not cut, the cutting blade 1141 and the adhesive surface 1112 are both located on the same side of the tab tape. When the cutting blade 1141 cuts the tab tape, it is very easy for the tab tape and the adhesive surface 1112 to separate. To solve this problem, the tape cutting assembly 114 may optionally include a cutting blade 1141 and a tape cutting driver 1142. The cutting blade 1141 is located between the tape clamping assembly 113 and the adhesive surface 1112. The tape cutting driver 1142 drives the cutting blade 1141 to move in the opposite direction to the direction of the adhesive surface 1112 approaching the tab 202. In this embodiment, since the direction in which the cutting blade 1141 is moved by the cutting driver 1142 is opposite to the direction in which the adhesive surface 1112 approaches the tab 202, when not cutting, the cutting blade 1141 and the adhesive surface 1112 are located on both sides of the tab tape. When the cutting driver 1142 drives the cutting blade 1141 to move, it can effectively prevent the cutting blade 1141 from peeling the tab tape from the adhesive surface 1112.

[0043] Optionally, the unwinding assembly 116 includes an unwinding body 1161 and an unwinding gripper 1162. The unwinding body 1161 is used to unwind the tab tape on the tab film roll 100, and the unwinding gripper 1162 can clamp or release the unwound tab tape. The tab applicator mechanism 1 also includes a buffer module 12, which is disposed between the unwinding assembly 116 and the clamping assembly 113. The buffer module 12 is used to pre-buffer the tab tape for the two tab applicator modules 11 simultaneously. In this embodiment, before the pull gripper 1152 pulls the tab tape from one side of the applicator surface 1112 to the other side, the buffer module 12 can simultaneously pre-buffer the tab tape from the respective unwinding assembly 116 for the two tab applicator modules 11.

[0044] Optionally, the buffer module 12 includes a buffer driver 121, a sliding plate 122, and two rotating rollers 123 spaced apart on the sliding plate 122 along a first direction. The tab tape released from the two unwinding assemblies 116 is respectively wound around the two rotating rollers 123. The buffer driver 121 drives the sliding plate 122 to move along the first direction, so that the rotating rollers 123 drive the wound tab tape to move. In this embodiment, the tab tape unwound from the unwinding assembly 116 is wound clockwise around the corresponding rotating roller 123 and then clamped on the clamping assembly 113. The buffer driver 121 drives the sliding plate 122 downward along the first direction to move it downward, so as to synchronously drive the two rotating rollers 123 to move the tab tape downward together, and the unwinding assembly 116 unwinds accordingly. When the adhesive gripper 1152 pulls the tab tape, the pre-buffered tab tape drives the two rotating rollers 123 and the sliding plate 122 to move upward until the pre-buffered tab tape is opposite to the adhesive surface 1112. During the operation of the adhesive gripper 1152, the pre-buffered tab tape is kept taut under the gravity of the two rotating rollers 123 and the sliding plate 122.

[0045] When the buffer driver 121 drives the sliding plate 122 to move downward, the clamping assembly 113 clamps the tab tape, and the unwinding jaws 1162 release the tab tape, so that the unwinding body 1161 can unwind under the action of the buffer module 12. After unwinding is completed, the unwinding jaws 1162 clamp the tab tape, and the clamping assembly 113 releases the tab tape, so that the pulling jaws 1152 can pull the pre-buffered tab tape.

[0046] Because the electrode 200 is very thin, when the electrode tab 202 is attached with electrode tab tape, the electrode tab 202 is suspended in the air. Therefore, the electrode tab 202 will bend downward under its own weight, which will affect the application accuracy of the electrode tab application mechanism 1. To avoid this problem, the electrode 200 may optionally include a coating part 201 and an electrode tab 202 disposed on one side of the coating part 201 along a third direction. In the two electrode tab application modules 11, the pressure assembly of the lower electrode tab application module 11 also includes a smoothing block. The height difference between the smoothing surface of the smoothing block and the application surface 1112 is less than or equal to 5mm. The coating part 201 is located on one side of the application surface 1112 along a third direction, and the smoothing surface is located on the other side of the application surface 1112 along a third direction. In this embodiment, when the lower pressure head 111 moves upward along with the smoothing block, the smoothing surface first contacts the tab 202 of the lower bend. As the lower pressure head 111 continues to move upward, the tab 202 is finally laid flat on the smoothing surface and the adhesive surface 1112.

[0047] Optionally, the unwinding body 1161 includes a plurality of support rollers 1160 and a drive assembly 1165. The plurality of support rollers 1160 are arranged in a ring at intervals and are configured to be inserted into the inner ring of the tab film 100. The drive assembly 1165 is capable of generating an elastic force that acts on at least one of the plurality of support rollers 1160. The support roller 1160 acted upon by the elastic force tends to drive the inner ring to move, so that the plurality of support rollers 1160 respectively abut against the inner ring. In this embodiment, when installing the tab film 100, the operator first overcomes the elastic force of the drive assembly 1165 to drive the support roller 1160, which is acted upon by the drive assembly 1165, to move against the elastic force, so that the multiple support rollers 1160 move closer to each other, thereby allowing the inner ring of the tab film 100 to be fitted over the unwinding assembly 116. Subsequently, the operator removes the force applied to the support roller 1160 acted upon by the drive assembly 1165. At this time, under the action of the elastic force of the drive assembly 1165, the support roller 1160 acted upon by the elastic force of the drive assembly 1165 has a tendency to drive the tab film 100 to move, so that the multiple support rollers 1160 respectively abut against the inner ring of the tab film 100, thereby fixing the tab film 100. During the subsequent unwinding of the tab film 100, the multiple support rollers 1160 press against the inner ring of the tab film 100, thereby effectively improving the slippage and vibration problems of the tab film 100, enhancing the unwinding tension stability, and effectively preventing material stretching deformation, wrinkling, or breakage.

[0048] Optionally, the tab adhesive mechanism 1 also includes a back plate 13, and among the plurality of support rollers 1160, there is at least one fixed support roller 1163 and at least one sliding support roller 1164. The fixed support roller 1163 is fixed relative to the back plate 13, and the sliding support roller 1164 slides relative to the back plate 13. At least one drive assembly 1165 is provided, and each drive assembly 1165 corresponds to a sliding support roller 1164. Each drive assembly 1165 includes an elastic element 1166 and a limiting seat 1167. The limiting seat 1167 is disposed on the back plate 13 and located on the sliding path of the corresponding sliding support roller 1164. The elastic element 1166 is disposed between the limiting seat 1167 and the corresponding sliding support roller 1164 and is connected to both the limiting seat 1167 and the corresponding sliding support roller 1164. In this embodiment, the drive assembly 1165 drives the sliding support roller 1164 to slide away from the fixed support roller 1163, thereby enabling the sliding support roller 1164 to drive the tab film 100 to move, thereby causing the sliding support roller 1164 and the fixed support roller 1163 to simultaneously press against the inner ring of the tab film 100. The fixed support roller 1163 is fixedly connected to the back plate 13. On the one hand, it can limit the position of the tab film 100. On the other hand, compared with all support rollers being sliding support rollers 1164, the fixed support roller 1163 can effectively prevent the tab film 100 from shaking. The limiting seat 1167 is fixed on the back plate 13, thereby limiting one end of the elastic member 1166, so that the other end of the elastic member 1166 can drive the sliding support roller 1164 to slide relative to the back plate 13.

[0049] Optionally, the elastic element 1166 is a helical spring. In other embodiments, the elastic element 1166 may also be an elastic part such as elastic rubber or an elastic plate.

[0050] Optionally, the limiting seat 1167 includes a fixing part 1168 and a sliding part 1169. The fixing part 1168 is fixed to the back plate 13, and the fixing part 1168 can adjust the position of the sliding part 1169 on the sliding path of the corresponding sliding support roller 1164. The elastic element 1166 is connected to the sliding part 1169. In this embodiment, by adjusting the position of the sliding part 1169 on the sliding path of the corresponding sliding support roller 1164, on the one hand, the deformation of the elastic element 1166 can be adjusted to ensure that the unwinding assembly 116 can adapt to tab film 100 of different weights and sizes. On the other hand, the damping force of the unwinding assembly 116 on the tab film 100 can be adjusted.

[0051] For example, the fixing part 1168 can be a cylinder, a hydraulic cylinder, or a linear motor.

[0052] Optionally, the fixing part 1168 includes a fixing block 1170 and a third adjusting bolt 1171. The fixing block 1170 is fixed to the back plate 13 and located on the sliding path of the corresponding sliding support roller 1164. The fixing block 1170 is provided with an adjusting screw hole, the axis of which is consistent with the sliding path of the corresponding sliding support roller 1164. The third adjusting bolt 1171 passes through the adjusting screw hole and is screwed to the fixing block 1170. The third adjusting bolt 1171 is connected to the sliding part 1169. In this embodiment, by screwing the third adjusting bolt 1171, the third adjusting bolt 1171 moves relative to the fixing block 1170 along the sliding path of the sliding support roller 1164, thereby driving the sliding part 1169 to slide on the sliding path of the sliding support roller 1164, thereby adjusting the elastic force of the elastic element 1166, and thus adjusting the clamping force of the sliding support roller 1164 on the inner ring.

[0053] Optionally, the sliding part 1169 is provided with an adjusting waist-shaped hole, which extends along the sliding path of the corresponding sliding support roller 1164; the limiting seat 1167 also includes a fixing bolt, which passes through the adjusting waist-shaped hole and is screwed to the back plate 13. In this embodiment, after the position of the sliding part 1169 on the back plate 13 is adjusted, in order to prevent the third adjusting bolt 1171 from rotating on its own, thereby causing the sliding part 1169 to shift on the back plate 13, the fixing bolt passes through the adjusting waist-shaped hole and is screwed to the back plate 13 to fix the sliding part 1169 to the back plate 13. This feature and the fixing part 1168 serve as redundancy for each other.

[0054] Optionally, the drive assembly 1165 includes a sliding block 1172 and a sliding rail 1173. The sliding rail 1173 is disposed on the back plate 13, and the sliding block 1172 is slidably engaged with the sliding rail 1173. A sliding support roller 1164 is fixedly mounted on the sliding block 1172, and an elastic element 1166 acts on the sliding block 1172 with elastic force. In this embodiment, the sliding rail 1173 extends along the sliding path of the sliding support roller 1164, thereby enabling the sliding block 1172 to slide relative to the sliding rail 1173 along the sliding path of the sliding support roller 1164. Since the sliding support roller 1164 is fixedly mounted on the sliding block 1172, the sliding of the sliding support roller 1164 on the back plate 13 is realized.

[0055] Optionally, the support roller 1160 includes a support shaft 1181, a sleeve 1182, and two limiting rings 1183. The sleeve 1182 is fitted onto the support shaft 1181 and rotatably engages with it. The two limiting rings 1183 are fitted onto the sleeve 1182. The limiting rings 1183 and the sleeve 1182 have a locked state and an active state. In the locked state, the limiting rings 1183 are fixed relative to the sleeve 1182. In the active state, the limiting rings 1183 and the sleeve 1182 slide relative to each other along the axial direction of the sleeve 1182. In this embodiment, the sleeve 1182 is fitted onto the support shaft 1181 and rotatably engages with it. When the tab film 100 is unwound, the tab film 100 drives the sleeve 1182 to rotate around the support shaft 1181, thereby reducing the frictional force during unwinding and reducing the force required for unwinding. Two limiting rings 1183 are located on both sides of the tab film 100 along the axial direction of the support shaft 1181, thereby limiting the tab film 100 and preventing the tab film 100 from coming off the unwinding assembly 116.

[0056] Optionally, two fixed support rollers 1163 and one sliding support roller 1164 are provided. The sliding path of the sliding support roller 1164 is located on the vertical line between the two fixed support rollers 1163. In this embodiment, the tab film 100 is sleeved on the unwinding assembly 116. Under the elastic force of the driving assembly 1165, the sliding support roller 1164 moves away from the two fixed support rollers 1163 along the vertical line between them, thereby driving the tab film 100 to move together until both the sliding support roller 1164 and the fixed support roller 1163 are pressed against the inner ring, thereby fixing the tab film 100.

[0057] Optionally, there are two hopper mechanisms 3. The transfer mechanism 4 transfers the electrode 200 without tab tape in one hopper mechanism 3 to the platform section 22, and transfers the electrode 200 with tab tape on the platform section 22 to the other hopper mechanism 3.

[0058] Optionally, the hopper mechanism 3 includes a movable hopper 31, a fixed base 32, and a lifting assembly 33. The movable hopper 31 includes a hopper body 311 and a pallet 312. The hopper body 311 is provided with an open receiving cavity. The pallet 312 is disposed in the receiving cavity and opposite to the open cavity. The pallet 312 is used to stack electrode sheets 200. The fixed base 32 includes a support plate 321 and a fixing assembly 322 disposed on the support plate 321. The hopper body 311 is disposed on the support plate 321. The fixing assembly 322 has a fixed state and a transfer state. In the fixed state, the fixing assembly 322 fixes the hopper body 311 relative to the support plate 321. In the transfer state, the fixing assembly 322 allows the hopper body 311 to be moved off the support plate 321. The lifting assembly 33 is used to drive the pallet 312 to move up and down in a first direction. In this embodiment, when the hopper mechanism 3 is used as a feeding hopper, the lifting component 33 lifts the topmost electrode 200 on the pallet 312 to the picking position. The transfer mechanism 4 picks up the electrode 200 one by one from the picking position of the hopper body 311 and sends it to the platform part 22. This cycle continues until there are no electrode 200s on the pallet 312. At this time, the fixing component 322 switches to the transfer state, and the operator can remove the mobile hopper 31 and place the mobile hopper 31, which is pre-filled with electrode 200s, onto the support plate 321. The fixing component 322 switches to the fixed state, and the above operation can be repeated. When the hopper mechanism 3 is used as a receiving hopper, the lifting component 33 lifts the pallet 312 below the receiving position. The transfer mechanism 4 picks up the electrode 200 and places it on the pallet 312. The lifting component 33 then moves down so that the electrode 200 on the pallet 312 is below the receiving position. This operation is repeated until the pallet 312 is at the lowest position of the receiving cavity. At this point, the receiving cavity is full of electrode 200. The operator only needs to switch the fixing component 322 to the transfer state to remove the mobile hopper 31 full of electrode 200 from the support plate 321 and replace it with an empty mobile hopper 31. The fixing component 322 is then switched back to the fixed state, and the above operation can be repeated. This hopper mechanism 3 is simple and time-saving to operate during loading and unloading, effectively improving the impact on production cycle time.

[0059] Optionally, the fixing component 322 includes a limiting block 3221 and two guide bars 3222. The two guide bars 3222 are spaced apart on the support plate 321 along a second direction and extend along a third direction. The limiting block 3221 is disposed on the support plate 321 along a third direction. The hopper body 311 is inserted between the two guide bars 3222 along a third direction, so that the hopper body 311 abuts against the limiting block 3221 and the two guide bars 3222 respectively. In this embodiment, the hopper body 311 is inserted between the two guide bars 3222 along a third direction until the hopper body 311 abuts against the limiting block 3221. At this time, the two guide bars 3222 limit the hopper body 311 along the second direction. The limiting block 3221 limits the hopper body 311 along a third direction.

[0060] Optionally, the fixing component 322 further includes a support block 3223 and a locking bolt 3224. The support block 3223 is fixed to one side of the support plate 321 along the second direction. The locking bolt 3224 passes through the support block 3223 and is opposite to the hopper body 311 along the second direction. The locking bolt 3224 is screwed to the support block 3223. In this embodiment, by tightening the locking bolt 3224, the locking bolt 3224 moves relative to the support block 3223 along its own axial direction. When the locking bolt 3224 abuts against the hopper body 311 along the second direction, the fixing component 322 switches to a fixed state, and the hopper body 311 is fixed relative to the support plate 321. When the locking bolt 3224 is spaced apart from the hopper body 311 along the second direction, the fixing component 322 switches to a transfer state, and the hopper body 311 can be moved off the support plate 321.

[0061] In other embodiments, the locking bolt 3224 can be replaced with a clamping cylinder, which is fixed on the support block 3223. The telescopic part of the clamping cylinder can abut against the hopper body 311 in the second direction.

[0062] Optionally, the fixing component 322 further includes a positioning sensor 3225, which is used to monitor the position of the hopper body 311 relative to the positioning sensor 3225 along a third direction. In this embodiment, when the distance between the hopper body 311 and the positioning sensor 3225 along a third direction is smm = dmm, it is determined that the hopper body 311 is in contact with the limiting block 3221, and the transfer mechanism 4 can then grab or store the electrode 200 from the hopper body 311. When smm > dmm is detected, it is determined that the hopper body 311 and the limiting block 3221 are spaced apart, and the transfer mechanism 4 does not move.

[0063] Optionally, the value of dmm can be in the range of 1mm-500mm.

[0064] Optionally, the position sensor 3225 is a photoelectric sensor.

[0065] Optionally, the hopper body 311 includes a bottom plate 3111, two sliding plates 3112, and four corner plates 3113. The two sliding plates 3112 are spaced apart from the bottom plate 3111 along a second direction, and the sliding plates 3112 have two states of relative fixation and relative sliding with respect to the bottom plate 3111 along the second direction. Each sliding plate 3112 has two corner plates 3113 spaced apart along a third direction, and the corner plates 3113 have two states of relative fixation and relative sliding with respect to the sliding plates 3112 along the third direction. The four corner plates 3113 form a receiving cavity. In this embodiment, the bottom plate 3111 is inserted between two guide bars 3222 and abuts against the two guide bars 3222 and the limiting block 3221. The two sliding plates 3112 have two states along the second direction relative to the base plate 3111: relatively fixed and relatively sliding. The corner plate 3113 has two states along the third direction relative to the sliding plates 3112: relatively fixed and relatively sliding. This allows the spacing between the corner plates 3113 on the two sliding plates 3112 along the second direction to be adjusted. At the same time, the spacing between the two corner plates 3113 on one sliding plate 3112 along the third direction can also be adjusted. This allows the size of the receiving cavity formed by the four corner plates 3113 to be adjusted so that the receiving cavity of the hopper body 311 can accommodate electrode sheets 200 of different sizes.

[0066] Optionally, the sliding plate 3112 includes a horizontal plate 3114 and a vertical plate 3115 at right angles. The horizontal plate 3114 is provided with a first oblong hole 3116, which extends along a second direction. A bolt passes through the first oblong hole 3116 and is screwed to the base plate 3111, thereby enabling the sliding plate 3112 to slide or be fixed relative to the base plate 3111 along the second direction. The vertical plate 3115 is provided with a second oblong hole 3117, which extends along a third direction. A bolt passes through the second oblong hole 3117 and is screwed to the corresponding corner plate 3113, thereby enabling the two corner plates 3113 on one sliding plate 3112 to slide or be fixed relative to each other along a third direction.

[0067] Optionally, the movable hopper 31 also includes a material dispensing position sensor 313, which is used to monitor whether there is material at the dispensing position of the receiving cavity. In this embodiment, the dispensing position is a virtual position, which is usually set at the open position of the receiving cavity. When the hopper mechanism 3 is used as a feeding hopper, when the material dispensing position sensor 313 detects that there is an electrode 200 at the dispensing position, the lifting component 33 does not work. When the material dispensing position sensor 313 detects that there is no electrode 200 at the dispensing position, the lifting component 33 lifts the support plate 312 upward by the thickness of one electrode 200, so that the electrode 200 at the highest position on the support plate 312 reaches the dispensing position. When the hopper mechanism 3 is used as a receiving hopper, the lifting component 33 does not work when the material picking position sensor 313 detects that there is no electrode 200 at the picking position. When the material picking position sensor 313 detects that there is an electrode 200 at the picking position, the lifting component 33 drives the pallet 312 to move downward by the thickness of one electrode 200, so that the pallet 312 or the electrode 200 at the highest position on the pallet 312 is below the picking position, so as to facilitate the material feeding by the material grabbing equipment.

[0068] Optionally, the material handling position sensor 313 includes a photoelectric emitter and a photoelectric receiver. The photoelectric emitter and the photoelectric receiver are respectively disposed on both sides of the material handling position along the second direction. When there is no electrode 200 at the material handling position, the photoelectric receiver can receive the light signal emitted by the photoelectric emitter. When there is an electrode 200 at the material handling position, the photoelectric receiver cannot receive the light signal emitted by the photoelectric emitter.

[0069] Optionally, the movable hopper 31 also includes a residual material detection sensor 314, which is used to monitor whether there is an electrode 200 on the pallet 312. In this embodiment, when the hopper mechanism 3 is used as a feeding hopper, the residual material detection sensor 314 monitors whether there is an electrode 200 on the pallet 312, thereby determining whether the receiving cavity is empty.

[0070] Optionally, the pallet 312 is provided with a mounting hole 3121, and the excess material detection sensor 314 is disposed in the mounting hole 3121.

[0071] Optionally, the residual material detection sensor 314 is a photoelectric sensor.

[0072] Optionally, the electrode tab bonding device further includes a peeling assembly 34, which includes a peeling bracket 341 and a peeling element 342. The peeling bracket 341 is fixed to the support plate 321. The peeling bracket 341 can adjust the relative position of the peeling element 342 and the material picking position of the hopper body 311. When the electrode 200 is picked up from the material picking position, the peeling element 342 can peel off other electrode 200s that are adhered to the picked electrode 200. In this embodiment, when the transfer mechanism 4 picks up the electrode 200 from the material picking position, the electrode 200s on the tray 312 are stacked sequentially. Due to electrostatic adsorption or liquid adsorption, adjacent electrode 200s may stick together. When the transfer mechanism 4 picks up the electrode 200 at the material picking position, the electrode 200 below may stick together. Therefore, the peeling element 342 peels off the electrode 200 below. The peeling bracket 341 can adjust the relative position of the peeling member 342 and the hopper body 311. On the one hand, it is convenient to adjust the position of the peeling member 342 so that the peeling member 342 is in the optimal position for peeling the electrode 200. On the other hand, this setting can be adapted to electrode 200 of different sizes.

[0073] Optionally, the peeling support 341 includes a fixed frame 3411, a sliding frame 3412, and a telescopic member 3416. The fixed frame 3411 is fixed to the support plate 321. The sliding frame 3412 has two states relative to the fixed frame 3411 along a second direction or a third direction: relatively fixed and relatively sliding. The telescopic member 3416 is disposed on the sliding frame 3412 and can drive the peeling member 342 to slide in the vertical direction. In this embodiment, when the peeling support 341 is disposed on one side of the hopper body 311 along the second direction, the sliding frame 3412 slides or is fixed relative to the fixed frame 3411 in the second direction. When the peeling support 341 is disposed on one side of the hopper body 311 along a third direction, the sliding frame 3412 slides or is fixed relative to the fixed frame 3411 in the third direction.

[0074] Optionally, the sliding frame 3412 is provided with a third oblong hole 3413, and the bolt passes through the third oblong hole 3413 and is screwed to the fixed frame 3411, thereby realizing the sliding and fixing of the sliding frame 3412 relative to the fixed frame 3411.

[0075] Optionally, the telescopic component 3416 is a telescopic cylinder. The telescopic part of the telescopic component 3416 is fixedly connected to the peeling component 342, and the fixed part 1168 of the telescopic component 3416 is connected to the sliding frame 3412, thereby realizing the peeling component 342 moving in the vertical direction.

[0076] Optionally, the peeling bracket 341 further includes a preliminary adjustment rod 3417. The sliding bracket 3412 is provided with an adjustment hole 3414 along the first direction. The sliding bracket 3412 is provided with an adjustment threaded hole 3415 communicating with the adjustment hole 3414 along the horizontal direction. The preliminary adjustment rod 3417 is inserted into the adjustment hole 3414. The bolt passes through the adjustment threaded hole 3415 and is opposite to the preliminary adjustment rod 3417. When the bolt and the preliminary adjustment rod 3417 are spaced apart, the preliminary adjustment rod 3417 slides relative to the sliding bracket 3412. When the bolt and the preliminary adjustment rod 3417 are pressed together, the preliminary adjustment rod 3417 is fixed relative to the sliding bracket 3412. The preliminary adjustment rod 3417 is fixedly connected to the telescopic member 3416, thereby realizing the preliminary adjustment and positioning of the peeling member 342. The telescopic member 3416 realizes the precise adjustment and positioning of the peeling member 342.

[0077] Optionally, the peeling element 342 includes a brush 3421 and / or an air nozzle 3422. In this embodiment, the brush 3421 can separate the mutually adhered electrode sheets 200, and the air nozzle 3422 can also blow the mutually adhered electrode sheets 200 apart.

[0078] Optionally, the peeling assembly 34 includes two components, which are respectively disposed on both sides of the support plate 321 along the second direction. In this embodiment, this arrangement, compared to providing only one peeling assembly 34, can further improve the success rate of separating the mutually adhered electrode sheets 200.

[0079] Optionally, the mounting base 32 further includes a connecting plate 323 and a fastener 324. The connecting plate 323 is disposed below the support plate 321, and the fastener 324 connects the connecting plate 323 to the support plate 321 so that the connecting plate 323 and the support plate 321 are spaced apart and fixedly disposed relative to each other. The connecting plate 323 is configured to be fixedly connected to the frame of the tab bonding equipment to fix the mounting base 32.

[0080] Optionally, the fastener 324 includes a plurality of connecting posts, which are spaced apart around the support plate 321 in the circumferential direction, and the two ends of each connecting post are fixedly connected to the support plate 321 and the connecting plate 323 respectively.

[0081] Optionally, the lifting assembly 33 includes a lead screw 331, a nut 332, and a drive member 333. The nut 332 is fixed to the fixed base 32. One end of the lead screw 331 passes through the nut 332, the support plate 321, and the bottom plate 3111 of the hopper body 311, and is opposite to the support plate 312. The drive member 333 drives the lead screw 331 to rotate. In this embodiment, since the nut 332 is fixed to the fixed base 32 and its axial direction is set along the first direction, the drive member 333 drives the lead screw 331 to rotate, thereby causing the lead screw 331 to move along the axial direction along with the drive member 333. Since the lead screw 331 is opposite to the support plate 312, it drives the support plate 312 to rise and fall along the first direction.

[0082] Optionally, the nut 332 passes through the connecting plate 323 and is fixedly connected to the connecting plate 323. One end of the lead screw 331 passes through the nut 332, the support plate 321 and the base plate 3111 and is opposite to the support plate 312. The lifting assembly 33 also includes a top block 336. One end of the lead screw 331 is rotatably connected to the top block 336 so that the lead screw 331 can rotate around its own axis relative to the top block 336. The lead screw 331 pushes against the top block 336 and abuts against the support plate 312.

[0083] Optionally, the lifting assembly 33 further includes a guide 334 and a fixed plate 335. The guide 334 allows the fixed plate 335 to slide relative to the fixed seat 32 along a first direction and restricts the fixed plate 335 from rotating about the axis of the lead screw 331. The driving member 333 is fixedly connected to the fixed plate 335. In this embodiment, the guide 334 only allows the fixed plate 335 to slide relative to the fixed seat 32 along the first direction and restricts the fixed plate 335 from rotating about the axis of the lead screw 331, so that the driving member 333 can drive the lead screw 331 to rotate.

[0084] Optionally, the guide member 334 includes at least two guide rods, which are spaced apart. One end of the guide rod is fixed to the fixing plate 335, and the other end passes through the connecting plate 323, the support plate 321 and the bottom plate 3111 and is fixed to the top block 336.

[0085] Optionally, the minimum distance between the driving component 333 and the fixed base 32 is emm, and the maximum distance between the driving component 333 and the fixed base 32 is fmm, where emm < fmm. The lifting assembly 33 also includes a limit sensor 337, which is used to monitor whether the distance Lmm between the driving component 333 and the fixed base 32 satisfies Lmm = emm or Lmm = fmm. In this embodiment, when Lmm is less than emm, if the driving component 333 continues to move upward, it is easy to cause the fixed plate 335 to collide with the connecting plate 323. When Lmm is greater than fmm, if the driving component 333 continues to move downward, it is easy to cause the pallet 312 to collide with the bottom plate 3111. Both of these situations can easily damage the hopper mechanism 3. Therefore, when the pallet 312 rises, if Lmm = emm, the driver stops working; when the pallet 312 falls, if Lmm = fmm, the driver stops working.

[0086] Optionally, the limit sensor 337 includes two slotted photoelectric sensors 3371 and a baffle 3372. The two slotted photoelectric sensors 3371 are spaced apart along a first direction. The baffle 3372 is provided on the fixed plate 335. When the driving member 333 drives the fixed plate 335 to move along the first direction, the two slotted photoelectric sensors 3371 are displaced relative to the baffle 3372. When the baffle 3372 slides into the slot of one slotted photoelectric sensor 3371, Lmm=emm. When the baffle 3372 slides into the slot of the other slotted photoelectric sensor 3371, Lmm=fmm.

[0087] The working principle of the slotted photoelectric sensor 3371 and the baffle 3372 is existing technology and will not be described in detail here.

[0088] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A tab-applying device configured to apply tab tape to an electrode sheet (200), said electrode sheet (200) comprising a coating portion (201) and a tab (202) connected to each other, characterized in that, include: The tab applicator (1) includes two tab applicator modules (11) spaced apart along a first direction. Each tab applicator module (11) includes a pressure head (111), a pressure driver (112), and an unwinding assembly (116). The pressure driver (112) drives the pressure head (111) to move along the first direction. The applicator surfaces (1112) of the two pressure heads (111) are opposite each other along the first direction. The unwinding assembly (116) is configured to provide the tab tape to the applicator surface (1112). The applicator surface (1112) can fix or release the tab tape. The adjustment platform (2) includes an adjustment part (21) and a platform part (22), the platform part (22) being configured to support the coating part (201), the tab (202) being located between the adhesive surfaces (1112) of the two pressure heads (111), and the adjustment part (21) being able to adjust the platform part (22) to move in a plane perpendicular to the first direction; The hopper mechanism (3) can hold the electrode sheet (200). The transfer mechanism (4) is capable of transferring the electrode (200) in the hopper mechanism (3) to the platform section (22). And / or transfer the electrode (200) on the platform section (22) to the hopper mechanism (3).

2. The tab bonding device according to claim 1, characterized in that, The adjustment unit (21) can adjust the platform unit (22) to move in the second direction; The adjustment unit (21) can adjust the platform unit (22) to move in a third direction; The adjustment part (21) can adjust the rotation of the platform part (22), and the rotation axis of the platform part (22) is set along the first direction; The first direction, the second direction, and the third direction are perpendicular to each other.

3. The tab bonding device according to claim 1, characterized in that, The adjustment platform (2) also includes a correction camera (23), which is used to photograph the electrode (200) on the platform (22).

4. The tab bonding device according to claim 1, characterized in that, The tab adhesive module (11) also includes: The clamping assembly (113) is located on one side of the adhesive surface (1112) along the second direction and is capable of clamping or releasing the tab tape located on one side of the adhesive surface (1112). The adhesive cutting assembly (114) is capable of cutting the tab tape between the adhesive surface (1112) and the clamping assembly (113); The adhesive-pulling assembly (115) includes an adhesive-pulling driver (1151) and an adhesive-pulling gripper (1152). The adhesive-pulling driver (1151) drives the adhesive-pulling gripper (1152) to clamp the tab tape and move it from one side of the adhesive surface (1112) to the other side along the second direction. The first direction and the second direction are perpendicular.

5. The tab bonding device according to claim 4, characterized in that, The adhesive pulling driver (1151) drives the adhesive pulling jaw (1152) to include a first adhesive pulling stroke and a second adhesive pulling stroke. During the first adhesive pulling stroke, the adhesive pulling jaw (1152) moves from one side of the adhesive surface (1112) to the other side along the second direction. During the second adhesive pulling stroke, the adhesive pulling jaw (1152) releases the tab tape and moves away from the tab tape.

6. The tab bonding device according to claim 4, characterized in that, The adhesive pressing driver (112) drives the pressure head (111) to include a first adhesive pressing stroke and a second adhesive pressing stroke. During the first adhesive pressing stroke, the adhesive surface (1112) is in contact with the back of the tab tape between the adhesive pulling assembly (115) and the adhesive clamping assembly (113). During the second adhesive pressing stroke, the adhesive surface (1112) is in contact with the tab (202).

7. The tab bonding device according to claim 4, characterized in that, The unwinding assembly (116) includes an unwinding body (1161) and an unwinding gripper (1162). The unwinding body (1161) is used to unwind the tab tape on the tab film roll (100), and the unwinding gripper (1162) can clamp or release the unwound tab tape.

8. The tab bonding device according to claim 7, characterized in that, The tab attaching mechanism (1) further includes a buffer module (12), which is disposed between the unwinding assembly (116) and the clamping assembly (113). The buffer module (12) includes a buffer driver (121), a sliding plate (122), and two rotating rollers (123) spaced apart on the sliding plate (122) along the first direction. The tab tapes released by the two unwinding assemblies (116) are respectively wound around the two rotating rollers (123). The buffer driver (121) drives the sliding plate (122) to move along the first direction so that the rotating rollers (123) drive the wound tab tapes to move.

9. The tab bonding device according to claim 7, characterized in that, The unwinding body (1161) includes: Multiple support rollers (1160) are arranged in a ring at intervals, and the multiple support rollers (1160) are configured to be inserted into the inner ring of the tab film (100); A drive assembly (1165) is capable of generating an elastic force that acts on at least one of the plurality of support rollers (1160), the support roller (1160) acted upon by the elastic force having a tendency to drive the inner ring to move such that the plurality of support rollers (1160) respectively abut against the inner ring.

10. The tab bonding device according to claim 9, characterized in that, The tab attaching mechanism (1) further includes a back plate (13). Among the plurality of support rollers (1160), at least one fixed support roller (1163) and at least one sliding support roller (1164) are included. The fixed support roller (1163) is fixed relative to the back plate (13), and the sliding support roller (1164) slides relative to the back plate (13). At least one drive assembly (1165) is provided, and each drive assembly (1165) corresponds to one sliding support roller (1164). The drive assembly (1165) includes an elastic element (1166) and a limiting seat (1167). The limiting seat (1167) is disposed on the back plate (13) and located on the sliding path of the corresponding sliding support roller (1164). The elastic element (1166) is disposed between the limiting seat (1167) and the corresponding sliding support roller (1164) and is connected to the limiting seat (1167) and the corresponding sliding support roller (1164) respectively.

11. The tab bonding device according to claim 10, characterized in that, The limiting seat (1167) includes a fixing part (1168) and a sliding part (1169). The fixing part (1168) is fixed to the back plate (13). The fixing part (1168) can adjust the position of the sliding part (1169) on the sliding path of the corresponding sliding support roller (1164). The elastic element (1166) is connected to the sliding part (1169).

12. The tab bonding device according to claim 9, characterized in that, The support roller (1160) includes a support shaft (1181), a sleeve (1182), and two limiting rings (1183). The sleeve (1182) is sleeved on the support shaft (1181) and rotates with the support shaft (1181). The two limiting rings (1183) are sleeved on the sleeve (1182). The limiting rings (1183) and the sleeve (1182) have a locked state and an active state. In the locked state, the limiting rings (1183) are fixed relative to the sleeve (1182). In the active state, the limiting rings (1183) and the sleeve (1182) slide relative to each other along the axial direction of the sleeve (1182).

13. The tab bonding device according to claim 1, characterized in that, The hopper mechanism (3) is provided in two parts. The transfer mechanism (4) transfers the electrode sheet (200) without the electrode tab tape in one of the hopper mechanisms (3) to the platform part (22), and transfers the electrode sheet (200) with the electrode tab tape on the platform part (22) to the other hopper mechanism (3).

14. The tab bonding device according to claim 1, characterized in that, The silo mechanism (3) includes: The mobile hopper (31) includes a hopper body (311) and a pallet (312). The hopper body (311) is provided with an open receiving cavity. The pallet (312) is disposed in the receiving cavity and opposite to the open. The pallet (312) is used to stack the electrode sheet (200). The fixed base (32) includes a support plate (321) and a fixing component (322) disposed on the support plate (321). The hopper body (311) is disposed on the support plate (321). The fixing component (322) includes a fixed state and a transfer state. In the fixed state, the fixing component (322) fixes the hopper body (311) relative to the support plate (321). In the transfer state, the fixing component (322) allows the hopper body (311) to be moved off the support plate (321). A lifting assembly (33) is used to drive the pallet (312) to move up and down along the first direction; The first direction is set along the vertical direction.

15. The tab bonding device according to claim 14, characterized in that, The hopper body (311) includes a bottom plate (3111), two sliding plates (3112), and four corner plates (3113). The two sliding plates (3112) are spaced apart on the bottom plate (3111) along a second direction. The sliding plates (3112) have two states relative to the bottom plate (3111) along the second direction: relatively fixed and relatively sliding. Each sliding plate (3112) has two corner plates (3113) spaced apart along a third direction. The corner plates (3113) have two states relative to the sliding plates (3112) along the third direction: relatively fixed and relatively sliding. The four corner plates (3113) form the receiving cavity. The first direction, the second direction, and the third direction are perpendicular to each other.

16. The tab bonding device according to claim 15, characterized in that, It also includes a peeling assembly (34), which includes a peeling bracket (341) and a peeling member (342). The peeling bracket (341) is fixed to the support plate (321). The peeling bracket (341) can adjust the relative position of the peeling member (342) and the material picking position of the hopper body (311). When the electrode (200) is picked up from the material picking position, the peeling member (342) can peel off other electrodes (200) that are adhered to the picked electrode (200).

17. The tab bonding device according to claim 16, characterized in that, The peeling bracket (341) includes a fixed frame (3411), a sliding frame (3412), and a telescopic member (3416). The fixed frame (3411) is fixed to the support plate (321). The sliding frame (3412) has two states relative to the fixed frame (3411) along the second direction: relatively fixed and relatively sliding. The telescopic member (3416) is disposed on the sliding frame (3412) and can drive the peeling member (342) to slide along the first direction.

18. The tab bonding device according to claim 14, characterized in that, The lifting assembly (33) includes a lead screw (331), a nut (332) and a drive member (333). The nut (332) is fixed to the fixed base (32) and arranged along the first direction. One end of the lead screw (331) passes through the nut (332), the support plate (321) and the bottom plate (3111) of the hopper body (311) and is opposite to the pallet (312). The drive member (333) drives the lead screw (331) to rotate.

19. The tab bonding device according to claim 18, characterized in that, The lifting assembly (33) further includes a guide (334) and a fixing plate (335). The guide (334) allows the fixing plate (335) to slide relative to the fixing seat (32) in the first direction and restricts the fixing plate (335) from rotating about the axis of the lead screw (331). The drive (333) is fixedly connected to the fixing plate (335).

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