An uninterrupted battery cell group gluing equipment

Abstract

This invention relates to the field of battery cell assembly, specifically disclosing a continuous battery cell grouping and adhesive application equipment. The equipment includes a first grouping mechanism and a second grouping mechanism with identical structures. Both the first and second grouping mechanisms include: a first side-pushing unit configured to sequentially push at least two battery cells along a first direction to form a spaced-apart battery cell grouping unit; and a second side-pushing unit, which pushes the battery cells along the first direction so that the sides of adjacent battery cells abut against each other. The adhesive application equipment also includes a synchronous conveying device configured to enable alternating operation of the first and second grouping mechanisms. When the first grouping mechanism performs battery cell stacking and grouping, the second grouping mechanism moves along a second direction to a preset connection position and conveys the battery cell grouping unit along the first direction to the downstream station. This invention solves the problem in traditional battery cell grouping and adhesive application equipment where the battery cell grouping station cannot continuously convey grouped battery cells to the adhesive application station, resulting in low battery cell stacking and adhesive application efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery cell assembly, and more specifically to an uninterrupted battery cell grouping and adhesive bonding device. Background Technology

[0002] As the basic unit of a battery, the cell needs to be assembled into a battery module or battery pack through a packing process. Among these processes, cell packing technology is widely used due to its advantages such as compact structure and reliable connection. Cell packing technology involves arranging multiple cells in a specific direction and then applying adhesive to the sides of the assembled cells to enhance structural stability and prevent short circuits.

[0003] Currently, the industry generally uses single-station cell assembly and adhesive application equipment. This equipment typically includes one assembly station and one adhesive application station. During the cell assembly process, the adhesive application station needs to wait for the assembly units to be in place. When the assembly units are transported to the adhesive application station, the assembly station cannot simultaneously carry out a new round of cell stacking, which limits the equipment's capacity and affects the cell processing efficiency. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problems, namely, that the traditional battery cell grouping and adhesive application equipment cannot continuously deliver groups of battery cells to the adhesive application station, resulting in low battery cell stacking efficiency and low adhesive application efficiency.

[0005] In a first aspect, the present invention provides an uninterrupted battery cell grouping and bonding device, comprising a first grouping mechanism and a second grouping mechanism having identical structures, both the first grouping mechanism and the second grouping mechanism being capable of stacking a plurality of battery cells into a group along a first direction, and both the first grouping mechanism and the second grouping mechanism comprising:

[0006] The first side-pushing unit is configured to push at least two cells sequentially along a first direction to form a cell group unit arranged at intervals, and push the cell group unit along a second direction perpendicular to the first direction to a first reference edge.

[0007] The second side-pushing unit is configured to press against the second reference edge of the cell assembly unit and push the cell along the first direction so that the sides of adjacent cells abut against each other.

[0008] The adhesive application equipment also includes a synchronous conveying device, which is configured to enable the alternating operation of the first grouping mechanism and the second grouping mechanism, such that when the first grouping mechanism performs cell stacking, the second grouping mechanism moves along the second direction to a preset docking position and conveys the cell grouping unit along the first direction to the downstream workstation.

[0009] In the preferred embodiment of the above-mentioned uninterrupted battery cell assembly adhesive bonding equipment, the first side-pushing unit includes:

[0010] A first conveying device is provided extending along a first direction;

[0011] A pushing device is driven by the first conveying device to reciprocate along a first direction. The pushing device includes a first power device and at least two carrier plates. The carrier plates are driven by the first power device to move along a second direction. Each carrier plate has a contour positioning groove that matches the outer contour of the battery cell.

[0012] The first roller assembly includes at least a first support and a plurality of first rollers extending along a first direction and rotatably disposed on the first support.

[0013] In the preferred embodiment of the above-mentioned uninterrupted battery cell assembly adhesive bonding equipment, the second side-pushing unit includes:

[0014] The second roller assembly includes at least a second power unit, a second support, and a second roller. A plurality of the second rollers extend along a first direction and are rotatably mounted on the second support. The second support is driven by the second power unit to move along the second direction.

[0015] The pushing device includes at least a second conveying device extending along a first direction and a push rod controlled by the second conveying device that is movable along a second direction.

[0016] In the preferred embodiment of the above-mentioned uninterrupted cell assembly adhesive bonding equipment, the pushing device further includes a stop member, which is disposed on the side of the second roller assembly away from the push rod. The stop member can extend in a second direction to restrict the end movement of the cell assembly unit.

[0017] In the preferred embodiment of the above-mentioned uninterrupted cell assembly adhesive bonding equipment, the synchronous conveying device is a third conveying device used to drive the first assembly mechanism and the second assembly mechanism to move synchronously in the second direction.

[0018] In the preferred embodiment of the above-mentioned uninterrupted battery cell grouping adhesive bonding equipment, a transfer mechanism for gripping and transferring the battery cells to the first grouping mechanism or the second grouping mechanism is further included. The transfer mechanism includes a robotic arm and at least one gripping device controlled by the robotic arm.

[0019] In the preferred embodiment of the above-mentioned uninterrupted cell assembly adhesive application equipment, an adhesive application mechanism is further included for receiving the cell assembly unit conveyed by the synchronous conveying device and for applying adhesive to both sides of the cell assembly unit. The adhesive application mechanism includes a clamping conveying unit and a first adhesive application unit and a second adhesive application unit disposed on both sides of the clamping conveying unit along a second direction. The clamping conveying unit is used to clamp both ends of the cell assembly unit conveyed by the synchronous conveying device and to convey the cell assembly unit between the first adhesive application unit and the second adhesive application unit along the second direction. The first adhesive application unit and the second adhesive application unit are respectively able to apply adhesive tape to the two sides of the cell assembly unit moving along the second direction.

[0020] In the preferred embodiment of the above-mentioned uninterrupted battery cell grouping adhesive bonding equipment, the clamping and conveying unit includes a fourth conveying device arranged along the second direction and a first clamping arm and a second clamping arm that are controlled to move by the fourth conveying device; the height of the first clamping arm and the second clamping arm relative to the fourth conveying device is adjustable.

[0021] In the preferred embodiment of the above-mentioned uninterrupted cell assembly adhesive application equipment, both the first adhesive application unit and the second adhesive application unit include a winding and unwinding device and a first clamping member, a cutting device, a pushing device, and a second clamping member arranged sequentially along a second direction. The adhesive tape released by the winding and unwinding device passes through the first clamping member. The second clamping member can clamp the end of the adhesive tape that has passed through the first clamping member and stretch it along a first direction. The pushing device is used to push the adhesive tape out along the second direction so that the adhesive tape adheres to the side of the cell assembly unit. The cutting device can cut the adhesive tape between the first clamping member and the second clamping member.

[0022] In the preferred embodiment of the above-mentioned uninterrupted cell assembly adhesive application equipment, the adhesive application mechanism further includes a fifth conveying device disposed between the first adhesive application unit and the second adhesive application unit, and a roller pressing structure disposed on both sides of the fifth conveying device along the second direction. The fifth conveying device is used to receive and convey the cell assembly unit transferred by the clamping conveying unit, and the roller pressing structure can limit the side of the cell assembly unit controlled and conveyed by the clamping conveying unit.

[0023] The beneficial effects of this invention are as follows: By setting up a first grouping mechanism and a second grouping mechanism with identical structures and configuring a synchronous conveying device to control their alternating operation, the equipment can complete the two processes of "cell grouping" and "grouping unit conveying" in parallel within the same time: when one grouping mechanism performs cell stacking and grouping, the other grouping mechanism moves synchronously along the second direction to the docking position and conveys its processed cell grouping unit along the first direction to the downstream adhesive application station; this "dual mechanism alternation, parallel process" mode completely eliminates the downtime caused by the serial operation of "grouping-conveying" in traditional single-station equipment, realizes uninterrupted operation of the entire process of cell grouping and adhesive application, and increases the equipment capacity by more than 50% compared with traditional equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of battery cell assembly.

[0025] Figure 2 This is the main view of the present invention. Figure 1 ;

[0026] Figure 3 This is the main view of the present invention. Figure 2 ;

[0027] Figure 4 This is a front view of the first and second grouped mechanisms;

[0028] Figure 5 The front view of the first grouping mechanism, the second grouping mechanism, and the synchronous conveying device;

[0029] Figure 6 Front view of the first and second grouping mechanisms and the synchronous conveying device;

[0030] Figure 7 This is the front view of the first group of mechanisms;

[0031] Figure 8 This is a schematic diagram of the first side-pushing unit;

[0032] Figure 9 This is a schematic diagram of the second roller assembly;

[0033] Figure 10 This is the main view of the transfer facility;

[0034] Figure 11 This is a partial schematic diagram of the transfer component;

[0035] Figure 12 This is the front view of the adhesive application mechanism;

[0036] Figure 13 Front view of the adhesive application mechanism;

[0037] Figure 14 This is the front view of the clamping conveyor unit;

[0038] Figure 15 This is a diagram showing the positional relationship between the fifth conveying device and the first adhesive applicator.

[0039] Figure 16 This is a front view of the first adhesive applicator.

[0040] Figure 17 This is a partial schematic diagram of the first adhesive application mechanism;

[0041] Figure 18 This is a front view of the fifth conveying device and the roller pressing structure;

[0042] In the picture:

[0043] Battery cell 101, battery cell assembly unit 102;

[0044] First assembly 1, first side push unit 11, first conveying device 111, pushing device 112, first power device 1121, carrier plate 1122, first roller group 113, first support 1131, first roller 1132, second side push unit 12, second roller group 121, second power device 1211, second support 1212, second roller 1213, pushing device 122, second conveying device 1221, push rod 1222, stop 1223;

[0045] Second grouping organization 2;

[0046] Synchronous conveying device 3;

[0047] 4. Transfer mechanism; 41. Robotic arm; 42. Gripping device;

[0048] Adhesive application mechanism 5, clamping and conveying unit 51, fourth conveying device 511, first clamping arm 512, second clamping arm 513, first adhesive application unit 52, winding and unwinding device 521, first clamping member 522, cutting device 523, pushing device 524, second clamping member 525, second adhesive application unit 53, fifth conveying device 54, roller pressing structure 55. Detailed Implementation

[0049] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0050] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] See Figures 2 to 6 The uninterrupted battery cell grouping adhesive application equipment of the present invention includes a first grouping mechanism 1 and a second grouping mechanism 2 with identical structures, and a synchronous conveying device 3 including a control device for alternating operation of the first grouping mechanism 1 and the second grouping mechanism 2.

[0053] See Figures 4 to 9 Both the first grouping mechanism 1 and the second grouping mechanism 2 can arrange a number of battery cells 101 sequentially along the first direction to form a line-shaped battery cell grouping unit 102. It can be understood that the number of battery cells 101 contained in each battery cell grouping unit 102 can be four, six or eight, and the specific number can be determined according to actual production needs. For ease of explanation, the number of battery cells 101 contained in each battery cell grouping unit 102 is set to six in this application.

[0054] See Figures 4 to 9 Both the first grouping mechanism 1 and the second grouping mechanism 2 include a first side-pushing unit 11 and a second side-pushing unit 12. The first side-pushing unit 11 can receive the battery cells 101 transported from upstream, and sequentially arrange six battery cells 101 in a line-shaped interval along the first direction to form a battery cell grouping unit 102. It can also push the battery cell grouping unit 102 to the first reference edge along a second direction perpendicular to the first direction. Specifically, the upstream station can transport two battery cells 101 at a time, and the first side-pushing unit 11 receives two... After the battery cell 101 is pushed along the second direction, it is made up of the space required for the next two battery cells 101. The second side pushing unit 12 can push against the second reference edge of the battery cell grouping unit 102, so that the battery cell grouping unit 102 is limited and fixed on both sides along the second direction, and can push against the battery cell 101 at the end of the battery cell grouping unit 102 along the first direction, so that several battery cells 101 are pushed and moved along the first direction, so that the sides of adjacent battery cells 101 can come into contact, and then the battery cell grouping unit 102 is arranged into a group.

[0055] See Figures 3 to 6 The synchronous conveying device 3 is used to control the first grouping mechanism 1 and the second grouping mechanism 2 to move at intervals along the second direction. When the first grouping mechanism 1 stacks and arranges the battery cells 101 into groups, the synchronous conveying device 3 controls the second grouping mechanism 2 to move along the second direction to a preset docking position, so that the second grouping mechanism 2 can transport the processed battery cell grouping unit 102 along the first direction to the downstream station for adhesive application. Alternatively, when the second grouping mechanism 2 stacks and arranges the battery cells 101 into groups, the synchronous conveying device 3 controls the first grouping mechanism 1 to move along the second direction to a preset docking position, so that the first grouping mechanism 1 can transport the processed battery cell grouping unit 102 along the first direction to the downstream station for adhesive tape application.

[0056] This application sets up a first grouping mechanism 1 and a second grouping mechanism 2 with identical structures, and configures a synchronous conveying device 3 to control the alternating operation of the two, so that the equipment can complete the two processes of "grouping of battery cells 101" and "grouping unit conveying" in parallel at the same time. This eliminates the downtime caused by the serial operation of "grouping-conveying" in traditional single-station equipment, and realizes uninterrupted operation of the entire process of battery cell grouping and adhesive application. The equipment capacity is increased by more than 50% compared with traditional equipment.

[0057] In a specific embodiment of the first side-pushing unit 11, the first side-pushing unit 11 includes a first conveying device 111, a pushing device 112, and a first roller group 113; the first conveying device 111 extends along a first direction and can be a linear module or a lead screw module; the pushing device 112 is controlled to move by the first conveying device 111, and the pushing device 112 includes a first power device 1121 and at least two carrier plates 1122. The first power device 1121 can control the carrier plates 1122 to move along a second direction. The first power device 1121 can be a cylinder. The number of carrier plates 1122 can be four or six. The carrier plates 1122 have contoured positioning grooves that match the outer contour of the battery cell 101. The contoured positioning grooves are used to place the battery cell 101 to ensure the stability of the battery cell 101 during the pushing process; the first roller group 113 includes at least a first support 1131 and a plurality of first rollers 1132 that extend along the first direction and are rotatably disposed on the first support 1131.

[0058] See Figures 4 to 9When the first side-pushing unit 11 arranges the six battery cells 101 at intervals along the first direction, the upstream conveying station first places two battery cells 101 into the contour positioning slots of two carrier plates 1122 respectively. Then, the first conveying device 111 controls several carrier plates 1122 to move synchronously along the first direction. This allows the movement of two battery cells 101 to facilitate the placement of subsequent battery cells 101 into the contour positioning slots of the corresponding carrier plates 1122. After the six battery cells 101 are placed, the first power device 1121 pushes the carrier plates 1122 along the second direction, so that the six battery cells 101 are pushed and their sides are fixed against the first roller 1132. This application achieves this by sequentially pushing two battery cells 101 along a first direction to form a battery cell grouping unit 102 with intervals, and then pushing the battery cell grouping unit 102 to contact the first roller 1132. This effectively avoids the problem of misalignment or collision of battery cells 101 caused by the traditional method of stacking battery cells in one go. The corresponding setting of the upstream conveying station to convey two battery cells 101 each time further reduces the load of a single push and improves the positioning accuracy.

[0059] In a specific embodiment of the second side-pushing unit 12, the second side-pushing unit 12 includes a second roller group 121 and a pushing device 122; the second roller group 121 includes at least a second power device 1211, a second support 1212 and second rollers 1213, a plurality of second rollers 1213 extending along a first direction and rotatably disposed on the second support 1212, the second support 1212 being driven by the second power device 1211 to move along a second direction, the second power device 1211 being a cylinder; the pushing device 122 includes at least a second conveying device 1221 extending along the first direction and a push rod 1222 controlled by the second conveying device 1221 and capable of moving along the second direction, the second conveying device 1221 being a linear module or a lead screw module, the push rod 1222 being controlled to move by a cylinder disposed on the second conveying device 1221.

[0060] See Figures 4 to 9After the first side-pushing unit 11 arranges the six battery cells 101 into a group at intervals and pushes them to abut against the first roller group 113, the second side-pushing unit 12 then pushes the battery cells 101 of the battery cell grouping unit 102 along the first direction to make the sides of the connected battery cells 101 contact each other; specifically, firstly, the second power device 1211 pushes the second bracket 1212 along the second direction, so that the second roller 1213 abuts against the surface of the battery cell grouping unit 102 on the side away from the first bracket 1131. A limiting channel is formed between the first roller 1132 and the second roller 1213 to allow the battery cell assembly unit 102 to pass through. Then, the push rod 1222 is moved along the second direction by the cylinder control, so that the push rod 1222 is located at the end of the battery cell assembly unit 102. Then, the push rod 1222 is moved along the first direction by the second conveying device 1221, so that the push rod 1222 pushes against the end battery cell 101, thereby allowing the adjacent sides of the battery cells 101 arranged at intervals along the first direction to abut against each other in sequence. In this application, a double-sided roller limiting channel is formed by the cooperation of the first roller group 113 and the second roller group. This channel replaces rigid clamping with rolling contact of the rollers, which not only restricts the movement of the cell assembly unit 102 in the second direction, but also minimizes the friction when the cell assembly unit 102 moves, thus avoiding the problem of scratches on the outer shell of the cell 101. Correspondingly, by setting the length of the first bracket 1131 and the second bracket 1212, it is possible to adapt to cell assembly units 102 of different lengths (such as 4 / 6 / 8 cells 101) and be compatible with the production of multiple specifications of cells 101.

[0061] In one or more embodiments, the pushing device 122 further includes a stop 1223, which is disposed on the side of the second roller group 121 away from the push rod 1222 and is capable of extending in a second direction to restrict end movement of the cell assembly unit 102.

[0062] See Figure 4 , Figure 5 , Figure 7 The power device that drives the stop 1223 to move in the second direction can be a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder. By pushing the end of the cell assembly unit 102 with the push rod 1222 and pushing the stop 1223 to move in the second direction to the front end of the cell assembly unit 102 for limitation, the stability of the contact between each cell 101 of the cell assembly unit 102 can be effectively ensured.

[0063] In one or more embodiments, the synchronous conveying device 3 is a third conveying device used to drive the first grouping mechanism 1 and the second grouping mechanism 2 to move synchronously in a second direction.

[0064] See Figures 4 to 6The third conveying device can be either a linear module or a screw module. The first grouping mechanism 1 and the second grouping mechanism 2 are mounted on the drive end of the third conveying device by means of the same plate. The third conveying device controls the plate to move forward in the second direction so that the first grouping mechanism 1 moves to the preset docking position, or controls the plate to move backward in the second direction so that the second grouping mechanism 2 moves to the preset docking position, so as to realize the uninterrupted operation of the two processes of "grouping of battery cells 101" and "grouping unit conveying", which greatly improves the processing efficiency of applying adhesive tape to the side of battery cells 101.

[0065] See Figure 2 , Figure 3 , Figure 10 , Figure 11 In one or more embodiments, the system further includes a transfer mechanism 4 for gripping and transferring the battery cell 101 to the first grouping mechanism 1 or the second grouping mechanism 2. The transfer mechanism 4 includes a robotic arm 41 and at least one gripping device 42 controlled by the robotic arm 41. The gripping device 42 can be a gripper cylinder. The robotic arm 41 can be a spider robotic arm. The gripping device 42 is mounted on the drive shaft end of the robotic arm 41 via a rotary cylinder. The number of gripping devices 42 can be two, so as to achieve one-time gripping and transfer of two battery cells 101, thereby improving the efficiency of battery cell 101 loading and placement.

[0066] In one or more embodiments, the device further includes an adhesive application mechanism 5 for receiving the battery cell assembly unit 102 conveyed by the synchronous conveying device 3 and for applying adhesive to both sides of the battery cell assembly unit 102. The adhesive application mechanism 5 includes a clamping conveying unit 51 and a first adhesive application unit 52 and a second adhesive application unit 53 disposed on both sides of the clamping conveying unit 51 along a second direction. The clamping conveying unit 51 is used to clamp both ends of the battery cell assembly unit 102 conveyed by the synchronous conveying device 3 and to convey the battery cell assembly unit 102 between the first adhesive application unit 52 and the second adhesive application unit 53 along the second direction. The first adhesive application unit 52 and the second adhesive application unit 53 are respectively able to apply adhesive tape to the two sides of the battery cell assembly unit 102 moving along the second direction.

[0067] See Figure 2 , Figure 3 , Figures 12 to 18The adhesive application mechanism 5 is located downstream of the first grouping mechanism 1 and the second grouping mechanism 2. The adhesive application mechanism 5 includes a clamping and conveying unit 51 and a first adhesive application unit 52 and a second adhesive application unit 53 arranged on both sides of the clamping and conveying unit 51 along the second direction. The clamping and conveying unit 51 is positioned above the first adhesive application unit 52 and the second adhesive application unit 53 via a frame. The first adhesive application unit 52 and the second adhesive application unit 53 have the same structure. The first adhesive application unit 52 can apply adhesive tape to one side of the battery cell grouping unit 102, and the second adhesive application unit 53 can simultaneously apply adhesive tape to the other side of the battery cell grouping unit 102. This enables the first adhesive application unit 52 and the second adhesive application unit 53 to simultaneously apply adhesive tape to both sides of the battery cell grouping unit 102 when the clamping and conveying unit 51 clamps and conveys the battery cell grouping unit 102 along the first direction. This ensures the adhesive application quality of the battery cell 101 while improving the adhesive application efficiency of the battery cell 101, and is practical.

[0068] In one or more embodiments, the clamping and conveying unit 51 includes a fourth conveying device 511 arranged along a second direction and a first clamping arm 512 and a second clamping arm 513 that are controlled to move by the fourth conveying device 511; the height of the first clamping arm 512 and the second clamping arm 513 relative to the fourth conveying device 511 is adjustable.

[0069] See Figure 3 , Figures 12 to 14 The fourth conveying device 511 can be a linear module or a lead screw module. The first clamping arm 512 and the second clamping arm 513 are controlled by the fourth conveying device 511 to move along the first direction. The first clamping arm 512 and the second clamping arm 513 are both installed on the drive end of the fourth conveying device 511 through telescopic cylinders. The inner sides of the first clamping arm 512 and the second clamping arm 513 can be fitted with contouring parts through cylinders. The contouring parts have a shape that matches the side of the battery cell 101.

[0070] Specifically, when the clamping and conveying unit receives and conveys the battery cell assembly unit 102, the first clamping arm 512 and the second clamping arm 513 are first moved to the preset connection position by the fourth conveying device 511. Then, the first clamping arm 512 and the second clamping arm 513 are moved down by the two telescopic devices respectively, so that the first clamping arm 512 and the second clamping arm 513 are located at the front end and the end end of the battery cell assembly unit 102 respectively. Afterwards, the cylinder controls the working of the contouring parts, so that the two contouring parts clamp and fix the front end and the end end of the battery cell assembly unit 102. The battery cell assembly unit 102 clamped and fixed by the first clamping arm 512 and the second clamping arm 513 is moved along the first direction by the fourth conveying device 511 and passes through the first adhesive application unit 52 and the second adhesive application unit 53. It is understandable that when the battery cell assembly unit 102 is tapered on the side, its front and rear ends are always clamped and fixed. This setting can prevent the connected battery cells 101 from shifting during the tape application process, ensuring the stability of the tape application process of the battery cells 101 and improving the quality of tape application of the battery cells 101.

[0071] In one or more embodiments, the first adhesive application unit 52 and the second adhesive application unit 53 each include a take-up and unwinding device 521 and a first clamping member 522, a cutting device 523, a pushing device 524 and a second clamping member 525 arranged sequentially along a second direction. The tape released by the take-up and unwinding device 521 passes through the first clamping member 522. The second clamping member 525 can clamp the end of the tape that has passed through the first clamping member 522 and stretch it along the first direction. The pushing device 524 is used to push the tape out along the second direction so that the tape adheres to the side of the cell assembly unit 102. The cutting device 523 can cut the tape between the first clamping member 522 and the second clamping member 525.

[0072] See Figure 2 , Figure 3 , Figures 12 to 18 The first adhesive application unit 52 and the second adhesive application unit 53 have the same structure. The following description only uses the structure of the first adhesive application unit 52 as an example. The first adhesive application unit 52 includes a take-up and unwinding device 521, a first clamping member 522, a cutting device 523, a pushing device 524, and a second clamping member 525. The take-up and unwinding device 521 includes at least a take-up roller, an unwinding roller, a guide roller, and a power device. The power device can drive the take-up roller and the unwinding roller to rotate. The adhesive tape is wound on the take-up roller through the release paper. After the adhesive tape is peeled off and attached to the side of the battery cell 101, the release paper is wound up by the take-up roller. The first clamping member 522 can be a gripper cylinder. The cutting device 523 can be a cutter controlled by a cylinder for lifting and lowering. The cutter is placed below the adhesive tape. The pushing device 524 can be a pressure roller controlled by a cylinder. The second clamping member 525 can be a gripper cylinder controlled by a telescopic cylinder.

[0073] Specifically, before applying adhesive tape to both sides of the cell assembly unit 102, the second clamping member 525 is moved to the position of the first clamping member 522. The second clamping member 525 clamps the peeled adhesive tape held by the first clamping member 522. Then, the clamping member 522 releases the tape, allowing it to be pulled out by the second clamping member 525 and pass through the cutting device 523 and the pushing device 524 in sequence. Subsequently, the clamping and conveying unit clamps and conveys the cell assembly unit 102 along the first direction between the first adhesive application unit 52 and the second adhesive application unit 53. When the front end of the cell assembly unit 102 approaches the second clamping member 525, the pushing device 524 is pushed against it. After the tape between the first clamping member 522 and the second clamping member 525 is attached to the side of the battery cell 101, the second clamping member 525 releases its grip on the tape. The tape is then conveyed along the first direction by the clamping and conveying unit controlled by the battery cell assembly unit 102. The tape is rolled and attached to the side of the battery cell 101 by the pushing device 524. After the tape is attached, the first clamping member 522 clamps the tape, and the cutting device 523 cuts the tape between the pushing device 524 and the first clamping member 522. Then, the above operation of the second clamping member 525 pulling out the tape clamped by the first clamping member 522 is repeated to facilitate the tape application operation of the next battery cell assembly unit 102.

[0074] In one or more embodiments, the adhesive applicator 5 further includes a fifth conveying device 54 disposed between the first adhesive applicator unit 52 and the second adhesive applicator unit 53 and a roller pressing structure 55 disposed on both sides of the fifth conveying device 54 along the second direction. The fifth conveying device 54 is used to receive the battery cell assembly unit 102 transferred by the conveying clamping conveying unit 51, and the roller pressing structure 55 can limit the side of the battery cell assembly unit 102 controlled by the clamping conveying unit 51.

[0075] See Figure 12 , Figure 13 , Figure 15 , Figure 18The fifth conveying device 54 can be a linear module or a lead screw module. The fifth conveying device 54 is located between the first adhesive application unit 52 and the second adhesive application unit 53 and is positioned directly below the clamping conveying unit. The fifth conveying device 54 can receive and convey the battery cell 101 transferred by the clamping conveying unit along the first direction, avoiding the problem of the battery cell 101 slipping in the height direction due to insufficient clamping force of the clamping conveying unit. The roller pressing structure 55 is located on both sides of the fifth conveying device 54. The roller pressing structure 55 includes a frame and roller pressing wheels mounted on the frame. The roller pressing structure 55 is located opposite to the front end of the first adhesive application unit 52 and the second adhesive application unit 53, so that after the first adhesive application unit 52 and the second adhesive application unit 53 complete the adhesive tape application operation on the side of the battery cell 101, the roller pressing wheel can roll and contact the side of the battery cell 101 to further smooth the adhesive tape on the side of the battery cell 101. At the same time, it can form a limit on the battery cell 101 in the second direction to ensure the quality of the adhesive tape application on the battery cell 101.

[0076] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An uninterrupted battery cell grouping adhesive bonding device, characterized in that, Including a first grouping mechanism and a second grouping mechanism with identical structures, both the first grouping mechanism and the second grouping mechanism are capable of stacking a number of battery cells into a group along a first direction. Both the first grouping mechanism and the second grouping mechanism include: The first side-pushing unit is configured to push at least two cells sequentially along a first direction to form a cell group unit arranged at intervals, and push the cell group unit along a second direction perpendicular to the first direction to a first reference edge. The second side-pushing unit is configured to press against the second reference edge of the cell assembly unit and push the cell along the first direction so that the sides of adjacent cells abut against each other. The adhesive application equipment also includes a synchronous conveying device, which is configured to enable the alternating operation of the first grouping mechanism and the second grouping mechanism, such that when the first grouping mechanism performs cell stacking, the second grouping mechanism moves along the second direction to a preset docking position and conveys the cell grouping unit along the first direction to the downstream station; the synchronous conveying device is a linear module or a lead screw module for driving the first grouping mechanism and the second grouping mechanism to move synchronously along the second direction.

2. The uninterrupted cell assembly and adhesive bonding equipment according to claim 1, characterized in that: The first side-pushing unit includes: A first conveying device is provided extending along a first direction; A pushing device is driven by the first conveying device to reciprocate along a first direction. The pushing device includes a first power device and at least two carrier plates. The carrier plates are driven by the first power device to move along a second direction. Each carrier plate has a contour positioning groove that matches the outer contour of the battery cell. The first roller assembly includes at least a first support and a plurality of first rollers extending along a first direction and rotatably disposed on the first support.

3. The uninterrupted cell assembly and adhesive bonding equipment according to claim 1, characterized in that: The second side thrust unit includes: The second roller assembly includes at least a second power unit, a second support, and a second roller. A plurality of the second rollers extend along a first direction and are rotatably mounted on the second support. The second support is driven by the second power unit to move along the second direction. The pushing device includes at least a second conveying device extending along a first direction and a push rod controlled by the second conveying device that is movable along a second direction.

4. The uninterrupted battery cell assembly and adhesive bonding equipment according to claim 3, characterized in that: The pushing device further includes a stop member disposed on the side of the second roller assembly away from the push rod, the stop member being able to extend in a second direction to restrict end movement of the cell assembly unit.

5. The uninterrupted battery cell assembly and adhesive bonding equipment according to any one of claims 1-4, characterized in that: It also includes a transfer mechanism for gripping and transferring battery cells to the first or second grouping mechanism, the transfer mechanism including a robotic arm and at least one gripping device controlled by the robotic arm.

6. The uninterrupted battery cell grouping adhesive bonding equipment according to any one of claims 1-4, characterized in that: It also includes an adhesive application mechanism for receiving the battery cell assembly unit conveyed by the synchronous conveying device and for applying adhesive to both sides of the battery cell assembly unit. The adhesive application mechanism includes a clamping conveying unit and a first adhesive application unit and a second adhesive application unit disposed on both sides of the clamping conveying unit along a second direction. The clamping conveying unit is used to clamp both ends of the battery cell assembly unit conveyed by the synchronous conveying device and to convey the battery cell assembly unit between the first adhesive application unit and the second adhesive application unit along the second direction. The first adhesive application unit and the second adhesive application unit are respectively able to apply adhesive tape to the two sides of the battery cell assembly unit moving along the second direction.

7. The uninterrupted battery cell assembly and adhesive bonding equipment according to claim 6, characterized in that: The clamping and conveying unit includes a fourth conveying device arranged along the second direction and a first clamping arm and a second clamping arm that are controlled to move by the fourth conveying device; the height of the first clamping arm and the second clamping arm relative to the fourth conveying device is adjustable.

8. The uninterrupted battery cell assembly and adhesive bonding equipment according to claim 6, characterized in that: Both the first and second adhesive application units include a winding and unwinding device and a first clamping member, a cutting device, a pushing device, and a second clamping member arranged sequentially along a second direction. The adhesive tape released by the winding and unwinding device passes through the first clamping member. The second clamping member can clamp the end of the adhesive tape that has passed through the first clamping member and stretch it along a first direction. The pushing device is used to push the adhesive tape out along the second direction so that the adhesive tape adheres to the side of the cell assembly unit. The cutting device can cut the adhesive tape between the first clamping member and the second clamping member.

9. The uninterrupted battery cell assembly and adhesive bonding equipment according to claim 8, characterized in that: The adhesive application mechanism further includes a fifth conveying device disposed between the first adhesive application unit and the second adhesive application unit, and a roller pressing structure disposed on both sides of the fifth conveying device along the second direction. The fifth conveying device is used to receive and convey the battery cell assembly unit transferred by the clamping conveying unit, and the roller pressing structure can limit the side of the battery cell assembly unit controlled and conveyed by the clamping conveying unit.

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