Diaphragm ending device and battery cell processing equipment

Abstract

The utility model relates to a diaphragm ending device and battery cell processing equipment. The diaphragm ending device comprises a transferring mechanism, a cutting mechanism and a picking mechanism, and after lamination is completed, the battery cell clamping jaw clamps the battery cell from the lamination table and transfers the battery cell to the tail winding device, so that a section of diaphragm material belt is pulled out between the lamination table and the tail winding device. And then, the cutting mechanism can be driven by the transferring mechanism to be close to the diaphragm material belt between the lamination table and the tail winding device, and the cutting driving piece drives the cutter to cut off the diaphragm material belt. The picking mechanism clamps the broken end, close to the tail rolling device, of the diaphragm material belt through a clamping piece. And when the tail winding device executes the tail winding operation, the picking mechanism and the tail winding device can move oppositely, so that the broken end of the diaphragm material belt is gradually close to the tail winding device. Therefore, the diaphragm ending device does not interfere with the battery cell clamping jaw, so that the structure of the battery cell clamping jaw is not limited by the diaphragm ending device, and the structure of battery cell processing equipment can be simplified.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery equipment technology, and in particular to a diaphragm finishing device and a cell processing equipment. Background Technology

[0002] After the battery cells are stacked on the stacking table, the separator strip needs to be cut, leaving a certain length of separator to be transferred with the battery cells to the tail winding station for winding, adhesive application, and other operations. Currently, battery cell grippers are generally used to pick up and transfer the battery cells, and a separator clamp is set between the stacking table and the tail winding mechanism to grip the separator. The battery cell grippers need to pass through the separator clamp to successfully transfer the battery cells. However, the separator clamp is quite long, and the length of the battery cell grippers needs to be adapted to it. This results in a relatively complex overall structure of the equipment. Utility Model Content

[0003] Therefore, it is necessary to provide a diaphragm finishing device and cell processing equipment that can simplify the structure to address the above problems.

[0004] A diaphragm finishing device includes a transfer mechanism, a cutting mechanism, and a picking mechanism. The cutting mechanism and the picking mechanism are both installed on the transfer mechanism, and the picking mechanism is located on one side of the cutting mechanism. The cutting mechanism includes a cutter and a cutting drive, and the picking mechanism includes a clamping member and a clamping drive.

[0005] In one embodiment, the pickup mechanism is slidably mounted on the transfer mechanism, and the diaphragm closing device further includes a tensioning member connected to the transfer mechanism and the pickup mechanism.

[0006] In one embodiment, the tensioning element is configured as a spring or a cylinder.

[0007] In one embodiment, the transfer mechanism is provided with a lifting end that can be raised and lowered, and both the cutting mechanism and the picking mechanism are installed on the lifting end of the transfer mechanism.

[0008] In one embodiment, the sliding direction of the picking mechanism is perpendicular to the lifting direction of the lifting end of the transfer mechanism.

[0009] In one embodiment, the transfer mechanism further includes a support plate, a lifting drive component, a mounting plate, and a mounting bracket. The mounting plate is connected to the lifting drive component, and the mounting bracket is mounted on the mounting plate. The cutting mechanism and the picking mechanism are both disposed on the mounting bracket. The diaphragm finishing device further includes a tensioning component, which is connected to the mounting plate and the mounting bracket.

[0010] In one embodiment, the mounting bracket is connected to the mounting plate via two spaced-apart guide rail slider assemblies, and the cutting drive is located between the two guide rail slider assemblies.

[0011] In one embodiment, the cutting mechanism further includes a cutter mounting plate and a first guide member, the cutter being mounted on the cutter mounting plate, and the cutter mounting plate being mounted on the mounting bracket via the first guide member.

[0012] In one embodiment, the cutting mechanism further includes a diaphragm pressure plate distributed on at least one side of the cutter.

[0013] In one embodiment, the diaphragm plate is retractable relative to the cutter.

[0014] In one embodiment, the cutting mechanism further includes a cutter mounting plate, a second guide member, and an elastic member. The cutter is mounted on the cutter mounting plate, the cutting drive member is pulsatorically connected to the cutter mounting plate, the diaphragm pressure plate is mounted on the cutter mounting plate via the second guide member, and the elastic member is connected to the diaphragm pressure plate.

[0015] In one embodiment, the diaphragm plate can move with the cutter toward the diaphragm strip to be cut and abut against the diaphragm strip before the cutter. As the cutter continues to move toward the diaphragm strip, the diaphragm plate can overcome the force of the elastic element and retract relative to the cutter until the cutter cuts the diaphragm strip.

[0016] In one embodiment, the cutting mechanism further includes a cutter mounting plate. The cutter includes a connecting plate, a heating wire, and a pre-tensioning member. The two connecting plates are rotatably mounted on the cutter mounting plate. The two ends of the heating wire are respectively connected to the two connecting plates, and the pre-tensioning member is connected to the connecting plates.

[0017] A battery cell processing apparatus includes a stacking table and a diaphragm finishing device as described in any of the above embodiments, wherein the diaphragm finishing device is disposed on one side of the stacking table.

[0018] In one embodiment, the stacking stage is capable of moving up and down relative to the diaphragm finishing device in a direction perpendicular to the stacking stage bearing surface.

[0019] In one embodiment, the stacking stage has a suction plate on its edge facing the diaphragm finishing device.

[0020] In one embodiment, the cutting mechanism further includes a diaphragm pressure plate, the suction plate being disposed opposite to the diaphragm pressure plate and capable of clamping the diaphragm strip between the suction plate and the diaphragm pressure plate.

[0021] In one embodiment, the device further includes a tail winding device and a cell gripper. The tail winding device is located on the side of the diaphragm winding device facing away from the stacking table, and the picking mechanism can move closer to or further away from the tail winding device. The cell gripper can grip the cell and move between the stacking table and the tail winding device.

[0022] In one embodiment, the stacking stage has a relief groove on its bearing surface for the insertion of the power supply core clamping claw. The stacking stage also includes a leveling mechanism, which includes a leveling plate and a leveling drive. The leveling drive can drive the leveling plate to level the relief groove and can also drive the leveling plate to expose the relief groove.

[0023] In one embodiment, the tail winding device includes a winding needle, and the inner side of the cell clamp has a clearance notch for the winding needle to pass through.

[0024] In the aforementioned diaphragm finishing device and cell processing equipment, after lamination, the cell grippers pick up the cells from the lamination table and transfer them to the tail winding device, thereby pulling out a section of diaphragm strip between the lamination table and the tail winding device. Next, driven by the transfer mechanism, the cutting mechanism approaches the diaphragm strip between the lamination table and the tail winding device, and the cutting drive drives the cutter to cut the diaphragm strip. The picking mechanism then uses grippers to pick up the broken end of the diaphragm strip near the tail winding device. During the tail winding operation, the picking mechanism and the tail winding device can move towards each other, causing the broken end of the diaphragm strip to gradually approach the tail winding device. Therefore, the aforementioned diaphragm finishing device does not interfere with the cell grippers, and the structure of the cell grippers is not limited by the diaphragm finishing device, thus simplifying the structure of the cell processing equipment. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a simplified schematic diagram of a battery cell processing equipment in one embodiment of the present invention;

[0027] Figure 2 for Figure 1 The diagram shows the structure of the diaphragm finishing device in the battery cell processing equipment.

[0028] Figure 3 for Figure 2 A schematic diagram of the rear side of the diaphragm termination device shown;

[0029] Figure 4 for Figure 2 The right-side view of the diaphragm termination device shown. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Please see Figure 1 This utility model provides a battery cell processing equipment 10 and a diaphragm finishing device 100. The battery cell processing equipment 10 includes a diaphragm finishing device 100, a stacking table 200, a tail winding device (not shown), and a battery cell gripper 300.

[0037] The diaphragm finishing device 100 is disposed on one side of the stacking table 200, and the tail winding device is disposed on the side of the diaphragm finishing device 100 facing away from the stacking table 200. Specifically, the stacking table 200 and the tail winding device are spaced apart along a first direction, and the diaphragm finishing device 100 is disposed between the stacking table 200 and the tail winding device. Here, the first direction refers to... Figure 1 As shown in the left-right direction, the diaphragm finishing device 100 is located on the left side of the stacking table 200, and the tail winding device is located on the left side of the diaphragm finishing device 100. Positive and negative electrode sheets can be alternately stacked on the stacking table 200, and adjacent two electrode sheets are separated by the diaphragm strip 20, thereby stacking the battery cell 30 on the stacking table 200.

[0038] The cell gripper 300 can grip the cell 30 on the stacking table 200 and transfer it to the tail winding device. The diaphragm finishing device 100 can cut the diaphragm strip 20 connected to the cell 30 to leave a certain length of diaphragm strip 20 at the end of the cell 30, and can clamp the end of the diaphragm strip 20 to keep the diaphragm strip 20 taut. The tail winding device then uses the reserved diaphragm strip 20 to perform a tail winding operation on the cell 30. Specifically, the tail winding device includes a winding needle 410, which can grip the cell 30 and drive the cell 30 to rotate, thereby winding the reserved diaphragm strip 20 around the outside of the cell 30.

[0039] In this embodiment, a clearance notch 310 is formed on the inner side of the cell clamp 300 for the winding needle 410 to pass through. After the cell clamp 300 transfers the cell 30 to the tail winding device, the winding needle 410 can pass through the clearance notch 310 to clamp the cell 30. During this process, the cell clamp 300 can still maintain the clamping of the cell 30, thus preventing the cell 30 from becoming loose.

[0040] In addition, in this embodiment, the stacking stage 200 has a relief groove (not shown) into which the power supply core clamp 300 extends on its bearing surface. The stacking stage 200 also includes a filling mechanism (not shown). The filling mechanism includes a filling plate and a filling drive. The filling drive can drive the filling plate to fill the relief groove and can drive the filling plate to expose the relief groove.

[0041] The clearance grooves are generally elongated, so the aligning plate is also elongated. In cases with multiple clearance grooves, the aligning plate must correspond one-to-one with each groove, and multiple aligning plates can be driven by a single aligning drive unit. During the stacking process of the battery cell 30, the aligning drive unit moves the aligning plate so that it enters the corresponding clearance groove and is flush with the bearing surface of the stacking stage 200, thus leveling the clearance groove. In this way, the bearing surface of the stacking stage 200 forms a complete plane, preventing indentations on the surface of the manufactured battery cell 30.

[0042] When the battery cells 30 are stacked and need to be removed by the battery cell grippers 300, the alignment drive unit drives the alignment plate to expose the clearance groove. In this way, the battery cell grippers 300 can extend to the bottom of the battery cells 30 through the clearance groove, thereby reliably clamping the battery cells 30 along the top and bottom sides.

[0043] After completing the tail winding operation, the aforementioned cell processing equipment 10 generally needs to perform processes such as adhesive application and pressing on the cell 30. The adhesive application and pressing processes can be performed using methods and structures similar to existing technologies, so they will not be described in detail here.

[0044] Please refer to the following: Figure 2 , Figure 3 and Figure 4 In one embodiment of the present invention, the diaphragm finishing device 100 includes a transfer mechanism 110, a cutting mechanism 120, and a picking mechanism 130.

[0045] Both the cutting mechanism 120 and the picking mechanism 130 are mounted on the transfer mechanism 110, which can drive the cutting mechanism 120 and the picking mechanism 130 to move. The cutting mechanism 120 includes a cutter 121 and a cutting drive 122, which can drive the cutter 121 to move to cut the diaphragm strip 20. Specifically, the cutting drive 122 can be a cylinder, which can quickly cut the diaphragm strip 20 by driving the cutter 121 to move.

[0046] The picking mechanism 130 includes a clamping member 131 and a clamping drive member 132. The clamping drive member 132 can drive the clamping member 131 to clamp or open. The clamping drive member 132 can also be a cylinder, which can first cause the clamping member 131 to open its opening, and after the diaphragm strip 20 enters the clamping member 131 through the opening, drive the clamping member 131 to clamp, thereby picking up the diaphragm strip 20. The clamping member 131 can be a clamping plate, with its opening facing the cutting mechanism 120, so as to facilitate the clamping of the broken end of the diaphragm strip 20.

[0047] The pickup mechanism 130 is located on one side of the cutting mechanism 120. Specifically, the pickup mechanism 130 is located on the side of the cutting mechanism 120 facing the stacking table 200. For example, if the stacking table 200 is located on the right side of the diaphragm finishing device 100, then the pickup mechanism 130 is also located on the right side of the cutting mechanism 120.

[0048] After the cells are stacked on the stacking table 200, the cell gripper 300 picks up the cells 30 from the stacking table 200 and transfers them to the tail winding device, thereby pulling out a section of diaphragm strip 20 between the stacking table 200 and the tail winding device. Next, the cutting mechanism 120, driven by the transfer mechanism 110, approaches the diaphragm strip 20 and cuts it between the stacking table 200 and the tail winding device. The picking mechanism 130 then picks up the cut end of the diaphragm strip 20 near the tail winding device. Specifically, after the diaphragm strip 20 is cut, the picking mechanism 130, driven by the transfer mechanism 110, first moves to align with the cut end of the diaphragm strip 20, then approaches the cut end, and finally picks up the cut end.

[0049] When the tail winding device performs the tail winding operation, the pickup mechanism 130 and the tail winding device can move towards each other. In this way, the pickup mechanism 130 can drive the broken end of the clamped diaphragm strip 20 to gradually move closer to the tail winding device to ensure that the tail winding operation is carried out smoothly.

[0050] Specifically, in this embodiment, the pickup mechanism 130 is slidably mounted on the transfer mechanism 110. Furthermore, the transfer mechanism 110 includes a tensioning member 150, which is connected to both the transfer mechanism 110 and the pickup mechanism 130. More specifically, the pickup mechanism 130 is capable of reciprocating relative to the transfer mechanism 110 along a first direction. The tensioning member 150 may be configured as a spring or a cylinder, capable of providing tension force to the transfer mechanism 110 along the first direction.

[0051] During the tail-winding operation, the diaphragm strip 20 is pulled along the first direction by the pickup mechanism 130, causing the clamped diaphragm strip 20 to gradually move closer to the tail-winding device. Furthermore, the tensioner 150 maintains tension on the diaphragm strip 20. Therefore, with the cooperation of the pickup mechanism 130, the diaphragm strip 20 can be smoothly supplied to the tail-winding device while preventing wrinkles, thus ensuring the smooth execution of the tail-winding operation.

[0052] It should be noted that in other embodiments, the picking mechanism 130 may also remain fixed in the first direction, while the diaphragm strip 20 is gradually brought closer to the tail winding device by reciprocating along the first direction.

[0053] Furthermore, the transfer mechanism 110 is provided with a lifting end capable of rising and falling, and the cutting mechanism 120 and the picking mechanism 130 are both mounted on the lifting end of the transfer mechanism 110. Specifically, the lifting end of the transfer mechanism 110 can rise and fall along a second direction, that is, the cutting mechanism 120 and the picking mechanism 130 can also rise and fall along the second direction under the drive of the transfer mechanism 110. The second direction is different from the first direction; specifically, in this embodiment, the first direction and the second direction are perpendicular to each other. More specifically, the second direction refers to... Figure 1 The vertical direction is shown.

[0054] In this embodiment, the transfer mechanism 110 further includes a support plate 111, a lifting drive component 112, a mounting plate 113, and a mounting bracket 114. The mounting plate 113 is connected to the lifting drive component 112, the mounting bracket 114 is slidably mounted on the mounting plate 113, and the cutting mechanism 120 and the picking mechanism 130 are both disposed on the mounting bracket 114.

[0055] The mounting plate 113 can be directly mounted on the drive end of the lifting drive component 112 and moved along the second direction under the drive of the lifting drive component 112. In this way, the mounting bracket 114 and the cutting mechanism 120 and the picking mechanism 130 on it can be moved along the second direction. When the mounting bracket 114 slides along the first direction, the cutting mechanism 120 and the picking mechanism 130 can be moved synchronously along the first direction, so the relative position between the cutting mechanism 120 and the picking mechanism 130 can always remain unchanged.

[0056] More specifically, the tensioner 150 is connected to the mounting plate 113 and the mounting bracket 114, so the tensioner 150 provides tension to the pickup mechanism 130 through the mounting bracket 114.

[0057] The mounting bracket 114 can be slidably mounted to the mounting plate 113 via a guide rail slider assembly. Specifically, the mounting bracket 114 and the mounting plate 113 are connected by two spaced-apart guide rail slider assemblies, with the cutting drive component 121 located between the two guide rail slider assemblies. This allows the mounting bracket 114 to drive the cutting mechanism 120 to move more smoothly in the first direction.

[0058] It should be noted that in other embodiments, the transfer mechanism 110 may also adopt other structures, such as a multi-axis manipulator.

[0059] During normal stacking, the cutting mechanism 120 and the picking mechanism 130 can move along the second direction under the drive of the transfer mechanism 110 to move away from the stacking table 200, thereby avoiding any impact on the stacking process. More importantly, the upward-moving cutting mechanism 120 and picking mechanism 130 are less likely to interfere with the cell gripper 300, so the structure of the cell gripper 300 is not limited, and the structure of the cell gripper 300 and the cell processing equipment 10 can be simplified. The cell gripper 300 can also be set shorter to ensure rigidity. Moreover, the cell gripper 300 can also accommodate cells 30 with a wider thickness range.

[0060] In this embodiment, the stacking table 200 can move up and down in a direction perpendicular to its bearing surface, i.e., the second direction. After stacking is completed, the stacking table 200 first rises in the second direction to approach the diaphragm finishing device 100. After the diaphragm strip 20 is cut by the cutting mechanism 120, the stacking table 200 can immediately descend in the second direction and move away from the diaphragm finishing device 100, while the diaphragm finishing device 100 continues to perform finishing operations on the cut diaphragm strip 20. That is to say, stacking operations can be performed simultaneously on the stacking table 200 before the diaphragm finishing device 100 completes its finishing operation, thereby helping to improve the cell production efficiency.

[0061] More specifically, in this embodiment, the cutting mechanism 120 further includes a cutter mounting plate 124 and a first guide member 125. The cutter 121 is mounted on the cutter mounting plate 124, which in turn is mounted on the mounting bracket 114 via the first guide member 125. The first guide member 125 can be a structure in which a linear bearing and a guide rod cooperate, and multiple such guide members are provided. The cutting drive member 122 is connected to the cutter mounting plate 124 and can drive the cutter mounting plate 124 to move the cutter 121 along the second direction, thereby enabling the diaphragm strip 20 to perform a cutting operation. With the assistance of the first guide member 125, the stability of the cutter 121 during the cutting process can be improved.

[0062] Please refer to it again. Figure 4 In this embodiment, the cutting mechanism 120 further includes a diaphragm pressure plate 123, which is distributed on at least one side of the cutter 121. The diaphragm pressure plate 123 can press the diaphragm strip 20 before the cutter 121 cuts it, thereby preventing the diaphragm strip 20 from shifting during the cutting process by the cutter 121.

[0063] Specifically, the diaphragm pressure plate 123 is capable of extending and retracting relative to the cutter 121 in a second direction. The diaphragm pressure plate 123 can be mounted on the cutter mounting plate 124, so that it can move synchronously with the cutter 121 in the second direction under the drive of the cutting drive member 122. Of course, the diaphragm pressure plate 123 may also not be synchronous with the cutter 121, but may abut against the diaphragm strip 20 under the drive of other drive members.

[0064] More specifically, in this embodiment, the cutting mechanism 120 further includes a second guide (not shown) and an elastic member (not shown). The diaphragm pressure plate 123 is mounted on the cutter mounting plate 124 via the second guide, and the elastic member is connected to the diaphragm pressure plate 123.

[0065] The second guide member can also adopt a structure that combines a linear bearing with a guide rod, which can guide the diaphragm pressure plate 123 in the second direction, thereby improving the stability of the diaphragm pressure plate 123. The elastic member can adopt a structure such as a compression spring, which can provide elastic force to the diaphragm pressure plate 123 in the second direction, so that the diaphragm pressure plate 123 can elastically abut against the diaphragm strip 20, thereby helping to improve the pressing effect of the diaphragm pressure plate 123 on the diaphragm strip 20.

[0066] Furthermore, in this embodiment, the diaphragm pressure plate 123 can move with the cutter 121 toward the diaphragm strip 20 to be cut and abut against the diaphragm strip 20 before the cutter 121. As the cutter 121 continues to move toward the diaphragm strip 20, the diaphragm pressure plate 123 can overcome the force of the elastic member and retract relative to the cutter 121 until the cutter 121 cuts the diaphragm strip 20.

[0067] In the initial state, the diaphragm pressure plate 123 protrudes downward relative to the cutter 121 along the second direction. Therefore, when the cutting drive 122 drives the cutter 121 and the diaphragm pressure plate 123 to move together toward the diaphragm strip 20 to be cut, the diaphragm pressure plate 123 can first abut against the diaphragm strip 20. After the diaphragm pressure plate 123 abuts against the diaphragm strip 20, the cutting drive 122 will continue to drive. At this time, the diaphragm pressure plate 123 remains in contact with the diaphragm strip 20, and the diaphragm strip 20 generates a reverse force on the diaphragm pressure plate 123, thereby causing the diaphragm pressure plate 123 to overcome the action of the elastic element and move upward relative to the cutter 121 along the second direction. In this way, the cutter 121 will gradually extend until it contacts the diaphragm strip 20 and cuts it.

[0068] Since the diaphragm pressure plate 123 remains in contact with the diaphragm material strip 20 during the process of the cutter 121 cutting the diaphragm material strip 20, it can fix the diaphragm material strip 20 near the cutter 121, thereby preventing the diaphragm material strip 20 from shifting during the cutting process and improving the cutting effect.

[0069] The cutter 121 can cut the diaphragm strip 20 by mechanical cutting, thermal cutting, or other methods. Specifically, in this embodiment, the cutter 121 includes a connecting plate 1211, a heating wire 1212, and a pre-tensioning member 1213. The two connecting plates 1211 are rotatably mounted on the cutter mounting plate 124. The two ends of the heating wire 1212 are respectively connected to the two connecting plates 1211, and the pre-tensioning member 1213 is connected to the connecting plate 1213.

[0070] The heating wire 1212 heats up when energized, which can melt the diaphragm strip 20. Therefore, the cutter 121 cuts the diaphragm strip 20 by thermal cutting. The pre-tensioning member 1213 can be a tension spring, which can apply a pre-tensioning force to the connecting plate 1213, making it have a tendency to rotate, thereby tightening the heating wire 1212.

[0071] Please refer to it again. Figure 1 In this embodiment, a suction plate 210 is provided on the edge of the stacking table 200 facing the tail winding device. The suction plate 210 can carry and adsorb the diaphragm material strip 20.

[0072] The suction plate 210 can adsorb and fix the diaphragm strip 20, effectively preventing the diaphragm strip 20 from shaking due to the surrounding airflow disturbance. Moreover, after the diaphragm strip 20 is cut by the cutting mechanism 120, the suction plate 210 can also adsorb and fix the broken end of the diaphragm strip 20, preventing the broken end of the diaphragm strip 20 from drifting and failing to be picked up smoothly by the picking mechanism 130.

[0073] Specifically, the suction plate 210 and the diaphragm pressure plate 123 are arranged opposite to each other. Therefore, when the diaphragm pressure plate 123 moves downward, it can cooperate with the diaphragm pressure plate 123 to clamp the diaphragm strip 20 between the suction plate 210 and the diaphragm pressure plate 123, thereby better fixing the diaphragm strip 20.

[0074] More specifically, in this embodiment, negative pressure holes (not shown) can be formed on the surface of the suction plate 210, and a negative pressure channel communicating with the suction holes is formed inside the suction plate 210. The negative pressure channel is used to connect with an external negative pressure device, so that the suction plate 210 can adsorb the diaphragm material strip 20 through negative pressure. Moreover, the diaphragm material strip 20 can be quickly released by switching the on / off state of the negative pressure device.

[0075] After the aforementioned diaphragm finishing device 100 and cell processing equipment 10 are completed, the cell gripper 300 clamps the cell 30 from the stacking table 200 and transfers it to the tail winding device, thereby pulling out a section of diaphragm material strip 20 between the stacking table 300 and the tail winding device. Next, the cutting mechanism 120, driven by the transfer mechanism 110, moves downward in the second direction and cuts the diaphragm material strip 20 between the stacking table 200 and the tail winding device. The picking mechanism 130 picks up the cut end of the diaphragm material strip 20 near the tail winding device and moves towards the tail winding device in the first direction under the drive of the transfer mechanism 110. With the cooperation of the cell gripper 300 and the diaphragm finishing device 100, the cell 30 and the reserved diaphragm material strip 20 at its tail can be smoothly transferred to the tail winding device. Since the diaphragm finishing device 100 does not interfere with the cell clamp 300, the structure of the cell clamp 300 will not be limited by the diaphragm finishing device 100, thus simplifying the structure of the cell processing equipment 10.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A diaphragm finishing device characterized by, The device comprises a transfer mechanism, a cutting mechanism and a pickup mechanism, the cutting mechanism and the pickup mechanism are installed on the transfer mechanism, and the pickup mechanism is located on one side of the cutting mechanism, the cutting mechanism comprises a cutter and a cutting driving element, and the pickup mechanism comprises a clamping element and a clamping driving element.

2. The septum tacking device of claim 1, wherein, The pickup mechanism is slidably installed on the transfer mechanism, and the diaphragm end device further comprises a tensioning element connected with the transfer mechanism and the pickup mechanism.

3. The septum tacking device of claim 2, wherein, The tensioning element is provided as a spring or an air cylinder.

4. The septum tacking device of claim 1, wherein, The transfer mechanism is provided with a lifting end capable of lifting, and the cutting mechanism and the pickup mechanism are installed on the lifting end of the transfer mechanism.

5. The septum tacking device of claim 4, wherein, The sliding direction of the pickup mechanism is perpendicular to the lifting direction of the lifting end of the transfer mechanism.

6. The septum tacking device of claim 1, wherein, The transfer mechanism further comprises a support plate, a lifting driving element, a mounting plate and a mounting bracket, the mounting plate is in transmission connection with the lifting driving element, the mounting bracket is installed on the mounting plate, the cutting mechanism and the pickup mechanism are arranged on the mounting bracket, and the diaphragm end device further comprises a tensioning element connected with the mounting plate and the mounting bracket.

7. The septum tacking device of claim 6, wherein, The mounting bracket and the mounting plate are connected through two interval arranged guide rail slider assemblies, and the cutting driving element is located between the two guide rail slider assemblies.

8. The septum tacking device of claim 6, wherein, The cutting mechanism further comprises a cutter mounting plate and a first guide element, the cutter is installed on the cutter mounting plate, and the cutter mounting plate is installed on the mounting bracket through the first guide element.

9. The septum tacking device of claim 1, wherein, The cutting mechanism further comprises a diaphragm pressing plate, and the diaphragm pressing plate is distributed on at least one side of the cutter.

10. The septum tacking device of claim 9, wherein, The diaphragm pressing plate can be telescoped relative to the cutter.

11. The septum tacking device of claim 9, wherein, The cutting mechanism further comprises a cutter mounting plate, a second guide element and an elastic element, the cutter is installed on the cutter mounting plate, the cutting driving element is in transmission connection with the cutter mounting plate, the diaphragm pressing plate is installed on the cutter mounting plate through the second guide element, and the elastic element is connected with the diaphragm pressing plate.

12. The septum tacking device of claim 11, wherein, The diaphragm pressing plate can move with the cutter to the diaphragm material belt to be cut off and abut against the diaphragm material belt before the cutter, and in the process that the cutter continues to move to the diaphragm material belt, the diaphragm pressing plate can retreat relative to the cutter against the action force of the elastic element until the cutter cuts off the diaphragm material belt.

13. The septum tacking device of claim 1, wherein, The cutting mechanism further comprises a cutter mounting plate, the cutter comprises a connecting plate, an electric heating wire and a pre-tightening element, two connecting plates are rotatably installed on the cutter mounting plate, two ends of the electric heating wire are respectively connected with the two connecting plates, and the pre-tightening element is connected with the connecting plate.

14. An electrode sheet processing apparatus characterized by comprising: The device comprises a laminated table and the diaphragm end device according to any one of claims 1 to 13, and the diaphragm end device is arranged on one side of the laminated table.

15. The battery cell processing apparatus of claim 14, wherein, The laminated table can be lifted relative to the diaphragm end device in a direction perpendicular to the bearing surface of the laminated table.

16. The battery cell fabrication apparatus of claim 14, wherein, An edge of the laminated table towards the diaphragm end device is provided with a suction plate.

17. The battery cell machining apparatus of claim 16, wherein, The cutting mechanism further comprises a diaphragm pressing plate, and the suction plate and the diaphragm pressing plate are oppositely arranged and can clamp the diaphragm material belt between the suction plate and the diaphragm pressing plate.

18. The battery cell machining apparatus of claim 14, wherein, The tail winding device is arranged on the side of the diaphragm tailing device away from the lamination table, and the pickup mechanism can be close to or away from the tail winding device.

19. The battery cell machining apparatus of claim 18, wherein, The bearing surface of the lamination table is provided with an avoiding recess for the extension of the battery cell clamping jaw, and the lamination table further comprises a patching mechanism, which comprises a patching plate and a patching driving element.

20. The battery cell machining apparatus of claim 19, wherein, The tail winding device comprises a winding needle, and the inner side of the battery cell clamping jaw is formed with an avoiding gap for the winding needle to pass through.

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