A core film pulling device

Abstract

The present application discloses a core film pulling device, which includes a driving component; a first transmission component connected to the output end of the driving component; a first adsorption component including at least one set of relatively arranged first adsorbing members and second adsorbing members, the second adsorbing member is connected to the first end of the first transmission component away from the driving component, the first adsorbing member is connected to an external base, and the second adsorbing member approaches the first adsorbing member under the transmission of the first transmission component to adsorb both sides of the core airbag or moves away from the first adsorbing member to open the core airbag; a regulation component connected to the driving component for regulating the displacement distance of the output end of the driving component, and further adjusting the maximum distance of the second adsorbing member away from the first adsorbing member. The core film pulling device provided by the present application can perform the pulling steps with different opening degrees on the core airbag by regulating the maximum distance of the second adsorbing member away from the first adsorbing member.

Description

Technical Field

[0001] This application relates to the technical field of automated equipment, and particularly to a core film pulling device. Background Art

[0002] In the production process of power soft-pack batteries, there is a step of opening the core air bag to facilitate the insertion of a liquid injection needle into the core air bag for electrolyte injection. However, the opening degree of existing core film pulling devices is usually of a fixed size, while in the actual production process, different opening degrees may be required to complete the electrolyte injection. Obviously, the existing core film pulling devices with a fixed opening degree cannot meet the actual usage requirements, so a core film pulling device that can solve the above technical problems is needed. Summary of the Invention

[0003] The main technical problem to be solved by this application is to provide a core film pulling device that can realize the core film pulling steps with different opening degrees for the core air bag by using the same core film pulling device.

[0004] To solve the above technical problem, one technical solution adopted by this application is: to provide a core film pulling device, including:

[0005] A driving component;

[0006] A first transmission component connected to the output end of the driving component;

[0007] A first adsorption component including at least one set of relatively arranged first adsorbing members and second adsorbing members. The second adsorbing member is connected to the first end of the first transmission component far from the driving component, the first adsorbing member is connected to an external base, and the second adsorbing member approaches the first adsorbing member under the transmission of the first transmission component to adsorb both sides of the core air bag or moves away from the first adsorbing member to open the core air bag;

[0008] A regulation component connected to the driving component, used to regulate the displacement distance of the output end of the driving component, and further adjust the maximum distance that the second adsorbing member moves away from the first adsorbing member.

[0009] Further, the regulation component includes a first driving member and a limit component connected to the first driving member. The driving component includes a cylinder, and the limit component is used to extend into the extending path of the piston rod or retract from the extending path of the piston rod under the control of the first driving component to regulate the extending length of the piston rod.

[0010] Further, the limiting component includes a limiting member and a limiting plate. The limiting member is disposed on the piston rod of the driving component, and the limiting plate is connected to the output end of the first driving member. The limiting plate extends under the drive of the first driving member to cooperate with the limiting member to define the displacement distance of the piston rod of the driving component.

[0011] Further, the driving component includes a motor, and the regulating component includes an electronic control unit. The electronic control unit is connected to the motor and is used to control the displacement distance of the output end of the motor.

[0012] Further, the device further includes:

[0013] A first fixing bracket and a second fixing bracket that extend in the same direction and are arranged in parallel at intervals. The second fixing bracket is connected to the end of the first transmission component away from the driving component. The first fixing bracket is fixedly connected to the external base. The first adsorbing member is connected to the first fixing bracket, and the second adsorbing member is connected to the end face of the second fixing bracket opposite to the first fixing bracket. The second fixing bracket approaches / separates from the first fixing bracket under the drive of the driving component, and further drives the second adsorbing member to approach / separate from the first adsorbing member.

[0014] Further, the device further includes:

[0015] A second transmission component;

[0016] A connecting rod that is rotatably disposed on the first fixing bracket. One end of the connecting rod is rotatably connected to the first transmission component, and the other end of the connecting rod is connected to the second transmission component;

[0017] A second adsorption component, including at least one set of oppositely arranged third adsorbing members and fourth adsorbing members. The third adsorbing member is connected to the external base, and the fourth adsorbing member is connected to the end of the second transmission component away from the first adsorption component.

[0018] Furthermore, the device further includes: a third fixing bracket, which is connected to the end of the second transmission component away from the connecting rod and is used to connect the second transmission component and the fourth adsorbing member. The third fixing bracket is arranged side by side and at intervals with the first fixing bracket, and the third fixing bracket is disposed on the side of the first fixing bracket away from the second fixing bracket.

[0019] Furthermore, the first fixing bracket and the second fixing bracket are arranged in parallel;

[0020] and / or,

[0021] The first fixing bracket and the third fixing bracket are arranged in parallel.

[0022] Further, the first transmission component includes a first slider and a first slide rail that are slidably connected. One of the first slider and the first slide rail is fixedly connected to the external base, and the other of the first slider and the first slide rail is connected to the connecting rod and is connected to the output end of the driving component. Further, the connecting rod is driven to rotate under the drive of the driving component, and the second end is the connecting end of the connecting rod and the first fixing bracket.

[0023] The second transmission component includes a second slider and a second slide rail that are slidably connected. One of the second slider and the second slide rail is fixedly connected to the external base, and the other of the second slider and the second slide rail is connected to the connecting rod, thereby driving the fourth adsorbing member to approach or move away from the third adsorbing member.

[0024] Still further, the first transmission component further includes a first moving plate, and the first moving plate connects the first end of the connecting rod and the first slider and the first slide rail connected to the output end of the driving component, thereby driving the connecting rod to rotate around the second end under the drive of the driving component.

[0025] and / or

[0026] The second transmission component further includes a second moving plate, and the second moving plate connects the third end of the connecting rod and the second slider or the second slide rail for sliding, thereby driving the fourth adsorbing member to approach or move away from the third adsorbing member.

[0027] The beneficial effect of the present application is as follows: Different from the prior art, the technical solution provided by the present application provides a battery cell film pulling device including a driving component, a first transmission component, a first adsorption component, and a regulation component. Specifically, by setting the first transmission component to be connected to the output end of the driving component, the first adsorption component includes at least one set of oppositely arranged first adsorbing members and second adsorbing members. The second adsorbing member is connected to the first end of the first transmission component far from the driving component, the first adsorbing member is connected to the external base, and the second adsorbing member approaches the first adsorbing member under the transmission of the first transmission component to adsorb both sides of the battery cell air bag or moves away from the first adsorbing member to open the battery cell air bag. At the same time, a regulation component is set to be connected to the driving component, thereby realizing regulating the displacement distance of the output end of the driving component by using the regulation component, realizing adjusting the maximum distance of the second adsorbing member moving away from the first adsorbing member, that is, regulating the displacement distance of the output end of the driving component by setting a regulation component connected to the driving component, realizing adjusting the displacement distance of the second adsorbing member, so that the same battery cell film pulling device can implement battery cell film pulling steps with different opening degrees for the battery cell air bag. Description of the Drawings

[0028] Figure 1Schematic diagram of the structure in an embodiment of a cell film pulling device of the present application;

[0029] Figure 2 Schematic diagram of the application scenario in an embodiment of a cell film pulling device of the present application;

[0030] Figure 3 Schematic diagram of the application scenario in another embodiment of a cell film pulling device of the present application;

[0031] Figure 4 Schematic diagram of the application scenario in yet another embodiment of a cell film pulling device of the present application;

[0032] Figure 5 Schematic diagram of the application scenario in another embodiment of a cell film pulling device of the present application;

[0033] Figure 6 Schematic diagram of the application scenario in an embodiment of a cell film pulling device of the present application;

[0034] Figure 7 Schematic diagram of the application scenario in another embodiment of a cell film pulling device of the present application. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0036] In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0037] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0038] In the production process of power soft-pack batteries, it includes the steps of opening the air bag of the battery cell to facilitate the injection needle to insert into the air bag of the battery cell for electrolyte injection. However, the existing battery cell film pulling device can only provide a fixed opening degree and cannot meet the requirements of different opening degrees for pulling the battery cell film. Or, in some embodiments, due to the relatively large volume of the air bag of the battery cell, when loading the air bag of the battery cell onto the battery cell film pulling device, a relatively large opening degree is required to avoid damaging the air bag of the battery cell. However, when injecting electrolyte into the air bag of the battery cell, a relatively small opening degree is required to avoid electrolyte leakage. Therefore, a battery cell film pulling device that can sensitively adjust the opening degree is needed. The battery cell film pulling device 100 provided in this application can quickly and sensitively open the air bag of the battery cell with a relatively simple structure to facilitate the execution of the electrolyte injection step. At the same time, the battery cell film pulling device 100 provided in this application can sensitively adjust the opening degree of opening the air bag of the battery cell, enabling the same battery cell pulling device to adapt to different opening degrees, and further enabling the same battery cell film pulling device 100 to meet different production process requirements.

[0039] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of an embodiment of a battery cell film pulling device in this application. In the current embodiment, the battery cell film pulling device 100 provided in this application is used to open the air bag of the battery cell to a set opening degree to facilitate the electrolyte injection step. Specifically, the battery cell film pulling device 100 includes a driving component 1, a first transmission component 3, a first adsorption component 4, and a regulation component 2.

[0040] Among them, the driving component 1 is a power source for providing the power for pulling the battery cell film. The driving component 1 can include a motor or a cylinder. In one embodiment, the driving component 1 can include a cylinder. Correspondingly, the output end 11 of the following driving component 1 is the piston rod of the cylinder. In another embodiment, the driving component 1 can also include a motor. Correspondingly, the output end 11 of the following driving component 1 is the output end of the motor.

[0041] The first transmission component 3 is connected to the output end 11 of the driving component 1. The first transmission component 3 is used to transmit the power output by the driving component 1 to the first adsorption component 4, so that the first adsorption component 4 performs the action of pulling the battery cell film to open the air bag of the battery cell. Specifically, the first transmission component 3 will transmit the power output by the driving component 1 to the first adsorption component 4, so that the first adsorption component 4 is adjusted to the maximum opening degree for the external battery cell loading device to load the battery cell. After the air bag of the battery cell is loaded, the opening degree is adjusted to the minimum to adsorb on both sides of the air bag of the battery cell. After the first adsorption component 4 adsorbs on both sides of the air bag of the battery cell, the opening degree is adjusted to a relatively small opening degree again to open the air bag of the battery cell, thereby completing the action of pulling the battery cell film.

[0042] Further, the first transmission assembly 3 includes a first slider 31 and a first slide rail 32 that are slidably connected. One of the first slider 31 and the first slide rail 32 is fixedly connected to an external base, and the other of the first slider 31 and the first slide rail 32 is connected to the output end 11 of the driving assembly 1. Then, under the drive of the driving assembly 1, the first adsorption assembly 4 is driven to perform the steps of avoiding the feeding of the battery cell airbag, adsorbing the battery cell airbag, and pulling open the battery cell airbag. The step of avoiding the feeding of the battery cell airbag refers to the situation where the opening degree of the first adsorption assembly 4 is adjusted to the maximum. It should be noted that in other embodiments, when the feeding method of the battery cell airbag changes, the first adsorption assembly 4 may also perform the steps of adsorbing the battery cell airbag and pulling open the battery cell airbag.

[0043] In one embodiment, the first slider 31 is fixedly connected to the external base, and the first slide rail 32 is connected to the output end 11 of the driving assembly 1. In the current embodiment, the driving assembly 1 drives the first slide rail 32 to move relative to the first slider 31. During the movement of the first slide rail 32, it will drive the second fixed bracket 6 to approach or move away from the first fixed bracket 5, and then make the second adsorbing member 42 approach or move away from the first adsorbing member 41.

[0044] In another embodiment, the first slide rail 32 is fixedly connected to the external base, and the first slider 31 is connected to the output end 11 of the driving assembly 1. In the current embodiment, the driving assembly 1 drives the first slider 31 to move relative to the first slide rail 32. During the movement of the first slider 31, it will drive the second fixed bracket 6 to approach or move away from the first fixed bracket 5, and then make the second adsorbing member 42 approach or move away from the first adsorbing member 41.

[0045] The first adsorption assembly 4 is used to adsorb on both sides of the battery cell air bag and pull open the battery cell air bag. The first adsorption assembly 4 includes at least one set of relatively arranged first adsorbing member 41 and second adsorbing member 42. Among them, the first adsorbing member 41 is connected to the first end (not marked in the figure) of the first transmission assembly 3 away from the driving assembly 1, and the first adsorbing member 41 is connected to an external base. Specifically, the first adsorbing member 41 is arranged at a position corresponding to the second end (not marked in the figure) between the two ends of the first transmission assembly 3 on the external base. The second adsorbing member 42 approaches the first adsorbing member 41 under the transmission of the first transmission assembly 3 to adsorb both sides of the battery cell air bag or moves away from the first adsorbing member 41 to pull open the battery cell air bag. Among them, the second end of the first transmission assembly 3 can be any part between the two ends of the first transmission assembly 3. For example, it can be the midpoint between the two ends of the first transmission assembly 3, or it can be the trisection point of the first transmission assembly 3; in another embodiment, when the first adsorbing member 41 is indirectly connected to the first transmission assembly 3, the second end is the position corresponding to the orthographic projection of the position where the first adsorbing member 41 is located on the first transmission assembly 3. The second end of the first transmission assembly 3 can also be simply understood as the position where the first adsorbing member 41 is connected to the first transmission assembly 3 or the position where the orthographic projection of the first adsorbing member 41 on the first transmission assembly 3 is located. Therefore, the second end is specifically based on the distance that can make the second adsorbing member 42 and the first adsorbing member 41 both adsorb on both sides of the battery cell air bag when the second adsorbing member 42 approaches the first adsorbing member 41 as the layout criterion.

[0046] Further, please continue to refer to Figure 1 , in an embodiment, the battery cell film pulling device 100 provided in the present application includes a first fixing bracket 5 and a second fixing bracket 6 that extend in the same direction and are arranged side by side at intervals. The second fixing bracket 6 is connected to the end of the first transmission assembly 3 away from the driving assembly 1. The first fixing bracket 5 is fixedly connected to the external base. The first adsorbing member 41 is fixedly connected to the first fixing bracket 5. The second adsorbing member 42 is fixedly connected to the end face of the second fixing bracket 6 opposite to the first fixing bracket 5. The second fixing bracket 6 approaches or moves away from the first fixing bracket 5 under the drive of the driving assembly 1, and then drives the second adsorbing member 42 to approach or move away from the first adsorbing member 41. Among them, the second fixing bracket 6 can approach the first fixing bracket 5 under the transmission of the first transmission assembly 3, and then drive the second adsorbing member 42 to approach the first adsorbing member 41 to adsorb on both sides of the battery cell air bag; after the second adsorbing member 42 and the first adsorbing member 41 adsorb on both sides of the battery cell air bag, the second fixing bracket 6 continues to move away from the first fixing bracket 5 under the transmission of the first transmission assembly 3, so that the second adsorbing member 42 moves away from the first adsorbing member 41, and then the battery cell air bag is pulled open for the step of injecting electrolyte.

[0047] Among them, in one embodiment, the first fixing bracket 5 and the second fixing bracket 6 are arranged in parallel. Further, the first fixing bracket 5 and the second fixing bracket 6 have the same length. Further still, the first fixing bracket 5 and the second fixing bracket 6 can also be brackets with the same size.

[0048] Further, when the first adsorbing member 41 and the second adsorbing member 42 approach each other, they can abut against each other with the battery cell air bag in between, that is, at least part of the orthographic projections of the first adsorbing member 41 and the second adsorbing member 42 on the first fixing bracket 5 overlap.

[0049] Further still, in one embodiment, in order to better and more quickly open the battery cell air bag, the orthographic projection of the first adsorbing member 41 on the first fixing bracket 5 is set to cover the orthographic projection of the second adsorbing member 42 on the first fixing bracket 5, that is, the orthographic projection area of the first adsorbing member 41 on the first fixing bracket 5 is larger than the orthographic projection area of the second adsorbing member 42 on the first fixing bracket 5.

[0050] Still further, in one embodiment, in order to more quickly and accurately open the battery cell air bag, the orthographic projections of the first adsorbing member 41 and the second adsorbing member 42 on the first fixing bracket 5 can also be set to completely overlap. In this way, when the first adsorbing member 41 and the second adsorbing member 42 approach each other, they can adsorb both sides of the same area of the battery cell air bag, and then quickly open the battery cell air bag to perform the electrolyte injection operation.

[0051] Further, the first adsorbing member 41 and the second adsorbing member 42 include vacuum suction pipes and / or vacuum suction cups.

[0052] Among them, the first adsorbing member 41 and the second adsorbing member 42 are connected to an external air circuit. Then, after approaching each other, the external air circuit performs a vacuum pumping action to adsorb both sides of the battery cell air bag. When the first adsorbing member 41 and the second adsorbing member 42 move away from each other driven by the connecting rod 7, the external air circuit continues to perform vacuum pumping to continue adsorbing both sides of the battery cell air bag, and then opens the battery cell air bag to perform the electrolyte injection operation.

[0053] Further, the first adsorbing member 41 is vertically connected to the first fixing bracket 5, and the second adsorbing member 42 is vertically connected to the second fixing bracket 6. Thus, the displacement of the driving assembly 1 can be maximally converted into the displacement between the second adsorbing member 42 and the first adsorbing member 41, and then the battery cell air bag can be opened to a larger opening degree to ensure that the electrolyte injection operation can be successfully completed.

[0054] Further, the first adsorbing member 41 and the second adsorbing member 42 have the same length, and the dimensions in the radial direction of the first adsorbing member 41 and the second adsorbing member 42 are the same. For example, the cross-sectional shapes of the first adsorbing member 41 and the second adsorbing member 42 in the radial direction are circular, and the dimensions in the radial direction and the length in the axial direction of the first adsorbing member 41 and the second adsorbing member 42 are the same. In other embodiments, the cross-sectional shapes of the first adsorbing member 41 and the second adsorbing member 42 in the radial direction may also be rectangular or polygonal, such as square, triangle, regular hexagon, etc., which are not listed one by one here.

[0055] Further, the first adsorption assembly 4 includes two groups of first adsorbing members 41 and second adsorbing members 42 that are arranged at intervals. Among them, the first adsorbing members 41 and the second adsorbing members 42 of each group are arranged opposite to each other. As Figure 1 shown, the first adsorption assembly 4 includes two first adsorbing members 41 arranged at intervals and two second adsorbing members 42 arranged at intervals. In the current embodiment, the relatively arranged first adsorbing member 41 and second adsorbing member 42 are defined as a group, and the distance between the two first adsorbing members 41 is the same as the distance between the two second adsorbing members 42. When the second fixing bracket 6 and the first fixing bracket 5 approach each other, the relatively arranged first adsorbing member 41 and second adsorbing member 42 can be in contact with the battery cell airbag at intervals. It can be understood that in other embodiments, the inertia and the suction force of the evacuated air flow can also be utilized to arrange the first adsorbing member 41 and the second adsorbing member 42 not to contact each other when adsorbing the battery cell airbag. At this time, when the distance between the first adsorbing member 41 and the second adsorbing member 42 is the smallest, the two sides of the battery cell airbag can be exactly adsorbed by the suction force of the evacuated air flow, thereby avoiding damage to the battery cell airbag when the first adsorbing member 41 and the second adsorbing member 42 contact each other. It should be noted that in other embodiments, the first adsorption assembly 4 may further include multiple groups of first adsorbing members 41 and second adsorbing members 42 that are arranged at intervals. Among them, the number of the first adsorbing members 41 and the second adsorbing members 42 that are arranged at intervals included in the adsorption assembly is not uniformly limited, and is specifically set according to the actual layout requirements of the battery cell film pulling device 100.

[0056] Furthermore, in one embodiment, in order to avoid damage to the battery cell airbag caused by the first adsorbing member 41 and the second adsorbing member 42, sealing soft pads are correspondingly arranged at the ends of the first adsorbing member 41 and the second adsorbing member 42 for adsorbing the battery cell airbag, so as to better adsorb the battery cell airbag. Among them, the sealing soft pad may include a rubber pad.

[0057] The regulation assembly 2 is connected to the driving assembly 1 and is used to regulate the displacement distance of the output end 11 of the driving assembly 1, so as to adjust the maximum distance of the second adsorbing member 42 away from the first adsorbing member 41.

[0058] Please also refer to Figures 2 to 5 ,Figure 2 and Figure 3 is a schematic diagram of an application scenario of a core film pulling device according to an embodiment of the present application, specifically showing the state where the limiting plate 222 extends out and cooperates with the limiting member 221 for limiting. Figure 4 and Figure 5 is a schematic diagram of an application scenario of a core film pulling device according to another embodiment of the present application. In Figure 4 and Figure 5 it specifically shows the state where the limiting plate 222 retracts, which can also be understood as the state where the limiting plate 222 disengages from the limiting member 221.

[0059] Further, the regulating assembly 2 includes a first driving member 21 and a limiting assembly 22 connected to the first driving member 21. The driving assembly 1 includes a cylinder. The limiting assembly 22 is configured to extend to the extending path of the piston rod or retract from the extending path of the piston rod under the control of the first driving member 21, so as to regulate the extending length of the piston rod. When the first driving member 21 controls the limiting assembly 22 to extend to the extending path of the piston rod, the extending length of the piston rod of the cylinder will be limited and shortened, so that the first adsorption assembly 4 opens to a smaller opening degree; when the first driving member 21 controls the limiting assembly 22 to retract from the extending path of the piston rod, the extending length of the piston rod of the cylinder is restored to the original length, so that the first adsorption assembly 4 can open to a larger opening degree.

[0060] In one embodiment, the limiting assembly 22 includes a movable end and a fixed end. The output end of the first driving member 21 is connected to the movable end of the limiting assembly 22, and the fixed end of the limiting assembly 22 is connected to the output end 11 of the driving assembly 1. The first driving member 21 is configured to drive the movable end of the limiting assembly 22 to extend, so as to cooperate with the fixed end of the limiting assembly 22 to limit the displacement distance of the output end 11 of the driving assembly 1.

[0061] In one embodiment, when it is necessary to open the battery cell air bag with a smaller opening degree, the first driving member 21 drives the movable end of the limiting component 22 to retract to the initial position, thereby releasing the engagement relationship between the movable end of the limiting component 22 and the fixed end of the limiting component 22, and the limiting component 22 does not limit the displacement distance of the driving component 1. At this time, the displacement distance of the driving component 1 is the maximum displacement distance, thereby driving the first adsorption component 4 to perform the maximum opening degree, thereby better avoiding the battery cell air bag and realizing lossless loading of the battery cell air bag; when the battery cell After the air bag is loaded and the first adsorption component 4 has adsorbed both sides of the battery cell air bag, the battery cell air bag needs to be opened with a smaller opening degree to inject electrolyte. The first driving member 21 drives the movable end of the limiting component 22 to extend, and then engages with the fixed end of the limiting component 22. At this time, the limiting component 22 limits the displacement distance of the driving component 1. The displacement distance of the driving component 1 is adjusted to a smaller displacement distance due to the limiting effect of the limiting component 22. Correspondingly, the driving component 1 will transmit the first adsorption component 4 to perform a smaller opening degree.

[0062] Furthermore, the limiting assembly 22 includes a limiting member 221 and a limiting plate 222, the driving assembly 1 includes a cylinder, the limiting member 221 is arranged on the piston rod of the driving assembly 1, the limiting plate 222 is connected to the output end of the first driving member 21, and the limiting plate 222 is extended under the drive of the first driving member 21 to cooperate with the limiting member 221 to limit the displacement distance of the piston rod of the driving assembly 1. Among them, the first driving member 21 may include a motor or a cylinder, and since the limiting member 221 remains stationary relative to the output end 11 of the driving assembly 1, the limiting member 221 can be understood as the fixed end of the limiting assembly 22, and the limiting plate 222 is dynamic relative to the output end 11 of the driving assembly 1, so the limiting plate 222 can be understood as the movable end of the limiting assembly 22.

[0063] Furthermore, the limiter 221 may be fixedly connected to the side of the piston rod close to the first transmission assembly 3, and the corresponding limiter plate 222 and the layout of the first driving member 21 may be arranged accordingly according to the layout of the limiter 221. Figure 1 As shown, it is connected to the side of the piston rod away from the first transmission assembly 3. When the first driving member 21 drives the limiting plate 222 to extend, it cooperates with the limiting member 221 to limit the displacement distance of the extended end of the driving assembly 1.

[0064] The first driving member 21 may be fixedly connected to an external base (not shown). In another embodiment, the first driving member 21 may also be connected to a fixed end of the driving assembly 1. For example, when the first driving member 21 is a cylinder and the driving assembly 1 is also a cylinder, the first driving member 21 may be fixedly connected to a fixed end of a second cylinder through a fixing plate.

[0065] Furthermore, the driving assembly 1 includes a motor, and correspondingly, the regulating assembly 2 includes an electronic control unit. The electronic control unit is connected to the driving assembly 1 and is used to control the displacement distance of the output end of the driving assembly 1. Wherein, the electronic control unit is a terminal device that pre-stores a program and can complete a preset function when the stored program is executed. When the electronic control unit executes the program, it can control the output end of the driving assembly 1 to drive the first adsorption assembly 4 with a larger displacement distance, or the electronic control unit can also control the driving assembly 1 to switch to driving the first adsorption assembly 4 with a smaller displacement distance.

[0066] Wherein, since the driving assembly 1 includes a motor, it can also be understood that the electronic control unit is connected to the motor and is used to control the displacement distance of the output end of the motor. The electronic control unit and the motor can be directly connected or wirelessly connected. In the current embodiment, the layout of the electronic control unit and the driving assembly 1 is not limited, and the specific layout is based on the actual product layout requirements.

[0067] This application Figure 1 The provided battery cell film pulling device 100 includes a driving assembly 1, a first transmission assembly 3, a first adsorption assembly 4, and a regulating assembly 2. Specifically, by setting the first transmission assembly 3 to be connected to the output end 11 of the driving assembly 1, the first adsorption assembly 4 includes at least a set of oppositely arranged first adsorbing members 41 and second adsorbing members 42. The second adsorbing member 42 is connected to the first end of the first transmission assembly 3 away from the driving assembly 1, and the first adsorbing member 41 is connected to the second end in the middle of both ends of the first transmission assembly 3. The second adsorbing member 42 approaches the first adsorbing member 41 under the transmission of the first transmission assembly 3 to adsorb both sides of the battery cell air bag or moves away from the first adsorbing member 41 to open the battery cell air bag. At the same time, the regulating assembly 2 is connected to the driving assembly 1, thereby realizing the use of the regulating assembly 2 to regulate the displacement distance of the output end 11 of the driving assembly 1, and realizing the adjustment of the maximum distance between the second adsorbing member 42 and the first adsorbing member 41. That is, by setting the regulating assembly 2 connected to the driving assembly 1, the displacement distance of the second adsorbing member 42 is adjusted by regulating the displacement distance of the output end 11 of the driving assembly 1, so that the same battery cell film pulling device 100 can perform battery cell film pulling steps with different opening degrees on the battery cell air bag.

[0068] In order to improve the efficiency of the battery cell film pulling device 100, two sets of adsorption assemblies are provided, so that the battery cell film pulling device 100 can simultaneously perform the battery cell film pulling steps on two sets of battery cell air bags. Please continue to refer to Figure 1, the battery cell film pulling device 100 provided in the present application also includes a connecting rod 7, a second transmission assembly 8 and a second adsorption assembly 9. Among them, the connecting rod 7 is rotatably arranged on the first fixed bracket 5, one end of the connecting rod 7 is rotatably connected to the first transmission assembly 3, and the other end of the connecting rod is connected to the second transmission assembly 8. The second adsorption assembly 9 includes at least one group of relatively arranged third adsorption components 91 and fourth adsorption components 92, the third adsorption component 91 is connected to the external base, and the fourth adsorption component 92 is connected to the end of the second transmission assembly 8 away from the first adsorption component 4. The connecting rod 7 rotates around the second end 72 under the transmission of the first transmission assembly 3, thereby driving the second transmission assembly 8 to approach or move away from the first fixed bracket 5, and the second transmission assembly 8 will drive the fourth adsorption component 92 to approach or move away from the third adsorption component 91. Among them, the second end 72 is the connection end between the connecting rod 7 and the first fixed bracket 5.

[0069] Specifically, the first end 71 of the connecting rod 7 is rotatably connected to the third end (not marked in the figure) on the first transmission assembly 3, the first fixed bracket 5 is rotatably connected to the second end 72 of the connecting rod 7, the connecting rod 7 rotates around the second end 72 under the transmission of the first transmission assembly 3, the second transmission assembly 8 is rotatably connected to the third end 73 of the connecting rod 7, the extension direction of the second transmission assembly 8 is parallel to the extension direction of the first transmission assembly 3, the second adsorption assembly 9 includes a third adsorption component 91 and a fourth adsorption component 92 that are oppositely and spaced apart, the third adsorption component 91 is arranged on the end face of the first fixed bracket 5 away from the second fixed bracket 6, the fourth adsorption component 92 is connected to the end of the second transmission assembly 8 away from the connecting rod 7, and the fourth adsorption component 92 is driven by the connecting rod 7 and the second transmission assembly 8, and approaches the third adsorption component 91 to adsorb the two sides of the battery cell air bag or moves away from the third adsorption component 91 to open the battery cell air bag.

[0070] The first end 71 of the connecting rod 7 is the part of the connecting rod 7 connected to the first transmission assembly 3, which can be one end of the connecting rod 7; the second end 72 of the connecting rod 7 is the position of the connecting rod 7 connected to the first fixed bracket 5; the third end 73 of the connecting rod 7 is the end of the connecting rod 7 away from the first end 71 and away from the second end 72, and is used to connect to the second transmission assembly 8. It should be noted that the shape and length of the connecting rod 7 are not limited here, and are based on the product layout requirements of the battery cell film drawing device 100 and the actual size parameters of the first transmission assembly 3 and the first adsorption assembly 4.

[0071] Please also see Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of an application scenario of an embodiment of a battery cell film drawing device of the present application, specifically showing a situation where the first adsorption component 4 and the second adsorption component 9 are opened to the maximum opening degree. Figure 7Schematic diagram of an application scenario in another embodiment of a core film pulling device of the present application, specifically showing the situation where the first adsorption component 4 and the second adsorption component 9 are opened to the minimum opening degree. In the current embodiment, during the process of the output end 11 of the driving component 1 retracting to the initial position, the first transmission component 3 is driven to approach the driving component 1. During the process of the first transmission component 3 approaching the driving component 1, the second adsorbent 42 is driven to approach the first adsorbent 41, so as to adsorb both sides of the core airbag located between the first adsorbent 41 and the second adsorbent 42. During the process of the first transmission component 3 driving the second adsorbent 42 to approach the first adsorbent 41, the first transmission component 3 also synchronously drives the connecting rod 7 to rotate around the second end, so that the first end on the connecting rod 7 approaches the second end of the first transmission component 3. During the rotation of the connecting rod 7, with the cooperation of the second transmission component 8, the fourth adsorbent 92 can be driven to approach the third adsorbent 91, so as to adsorb both sides of the core airbag located between the fourth adsorbent 92 and the third adsorbent 91; after the first adsorbent 41 and the second adsorbent 42 adsorb both sides of the core airbag, the driving component 1 will output driving force again to make the extending end extend outwards. At this time, the driving component 1 will drive the first transmission component 3 away from the driving component 1. During the process of the first transmission component 3 moving away from the driving component 1, the second adsorbent 42 will be driven to move away from the first adsorbent 41, so as to open the adsorbed core airbag. During the process of the first transmission component 3 driving the second adsorbent 42 to move away from the first adsorbent 41 to open the core airbag, the first transmission component 3 also drives the connecting rod 7 to rotate around the second end, so that the first end 71 of the connecting rod 7 moves away from the second end of the first transmission component 3. During this process, with the cooperation of the second transmission component 8, the connecting rod 7 drives the fourth adsorbent 92 to move away from the third adsorbent 91, so as to open the core airbag located between the fourth adsorbent 92 and the third adsorbent 91.

[0072] Further, please continue to refer to Figure 1 , the core film pulling device 100 provided by the present application further includes: a third fixing bracket 10, connected to the end of the second transmission component 8 away from the connecting rod 7, used to connect the second transmission component 8 and the fourth adsorbent 92, and arranged side by side and at intervals with the first fixing bracket 5. The third fixing bracket 10 is arranged on the side of the first fixing bracket 5 away from the second fixing bracket 6.

[0073] Among them, the first fixing bracket 5 and the third fixing bracket 10 are arranged in parallel. Further, the lengths of the first fixing bracket 5 and the third fixing bracket 10 are the same. Further still, the sizes of the first fixing bracket 5 and the third fixing bracket 10 are the same.

[0074] Further, in one embodiment, the first fixing bracket 5, the second fixing bracket 6, and the third fixing bracket 10 are arranged in parallel with each other, and the distance between the first fixing bracket 5 and the second fixing bracket 6 is equal to the distance between the first fixing bracket 5 and the third fixing bracket 10. Wherein, the length of the first fixing bracket 5 is greater than or equal to the length of the second fixing bracket 6, and the length of the first fixing bracket 5 is greater than or equal to the length of the third fixing bracket 10.

[0075] Furthermore, the first fixing bracket 5, the second fixing bracket 6, and the third fixing bracket 10 have the same length. Still further, the first fixing bracket 5, the second fixing bracket 6, and the third fixing bracket 10 have the same dimensions.

[0076] Further, the extending directions of the first fixing bracket 5, the second fixing bracket 6, and the third fixing bracket 10 are all perpendicular to the extending direction of the first transmission component 3.

[0077] Please continue to refer to Figure 1 , furthermore, the first transmission component 3 includes: a first slider 31 and a first slide rail 32 that are slidably connected, and one of the first slider 31 and the first slide rail 32 is fixedly connected to an external base; the other of the first slider 31 and the first slide rail 32 is connected to the connecting rod 7 and is connected to the output end 11 of the driving component 1, and then drives the connecting rod 7 to rotate around the second end under the drive of the driving component 1.

[0078] In one embodiment, the first slider 31 is fixedly connected to the external base, the first slide rail 32 is connected to the first end 71 of the connecting rod 7 and is connected to the output end 11 of the driving component 1, and the second fixing bracket 6 is connected to the end of the first slide rail 32 away from the driving component 1. In the current embodiment, the driving component 1 drives the first slide rail 32 to move relative to the first slider 31. During the movement of the first slide rail 32, it will drive the connecting rod 7 to rotate around the second end, and at the same time, it will also drive the second fixing bracket 6 to approach the first fixing bracket 5 or drive the second fixing bracket 6 to move away from the first fixing bracket 5, thereby making the second adsorbent 42 provided on the second fixing bracket 6 approach the first adsorbent 41 or making the second adsorbent 42 move away from the first adsorbent 41. The connecting rod 7 drives the fourth adsorbent 92 to approach the third adsorbent 91 or makes the fourth adsorbent 92 move away from the third adsorbent 91 through the second transmission component 8.

[0079] In another embodiment, the first slide rail 32 is fixedly connected to the external base, the first slider 31 is connected to the first end 71 of the connecting rod 7 and is also connected to the output end 11 of the driving component 1, and the second fixing bracket 6 is connected to the end of the first slider 31 away from the driving component 1. In the current embodiment, the driving component 1 drives the first slider 31 to move relative to the first slide rail 32. During the movement of the first slider 31, the connecting rod 7 will be driven to rotate around the second end, and at the same time, the second fixing bracket 6 will be driven to approach the first fixing bracket 5 or to move away from the first fixing bracket 5, thereby causing the second adsorbent 42 provided on the second fixing bracket 6 to approach the first adsorbent 41 or to move away from the first adsorbent 41. The connecting rod 7 will drive the fourth adsorbent 92 to approach the third adsorbent 91 or to move away from the third adsorbent 91 through the second transmission component 8.

[0080] The second transmission component 8 includes a second slider 81 and a second slide rail 82 that are slidably connected. One of the second slider 81 and the second slide rail 82 is fixedly connected to the external base, and the other of the second slider 81 and the second slide rail 82 is connected to the connecting rod 7, thereby driving the fourth adsorbent 92 to approach or move away from the third adsorbent 91.

[0081] In one embodiment, the second slider 81 is fixedly connected to the external base, the second slide rail 82 is connected to the third end 73 of the connecting rod 7, and the third fixing bracket 10 is connected to the second slide rail 82. During the process of the connecting rod 7 being driven to rotate around the second end, the second slide rail 82 is driven by the connecting rod 7 to move relative to the slider, thereby driving the fourth adsorbent 92 provided on the third fixing bracket 10 to approach or move away from the third adsorbent 91.

[0082] In another embodiment, the second slide rail 82 is fixedly connected to the external base, the second slider 81 is connected to the third end 73 of the connecting rod 7, and the third fixing bracket 10 is connected to the second slider 81. During the process of the connecting rod 7 being driven to rotate around the second end, the second slider 81 is driven by the connecting rod 7 to move along the second slide rail 82, thereby driving the fourth adsorbent 92 provided on the third fixing bracket 10 to approach or move away from the third adsorbent 91.

[0083] Furthermore, the first transmission component 3 or the second transmission component 8 further includes a first moving plate 33. The first moving plate 33 connects the first end 71 of the connecting rod 7 and the first slider 31 or the first slide rail 32 connected to the output end of the driving component 1, thereby driving the connecting rod 7 to rotate around the second end under the drive of the driving component 1.

[0084] Furthermore, the second transmission component 8 further includes a second moving plate 83. The second moving plate 83 is connected to the third end 73 of the connecting rod 7 and the second slider 81 or the second slide rail 82 for sliding, so as to drive the fourth adsorbing member 92 to approach or move away from the third adsorbing member 91. It should be noted that the shapes and sizes of the first moving plate 33 and the second moving plate 83 are not limited herein, and are specifically set according to actual layout requirements.

[0085] Further, the second adsorption component 9 includes two sets of third adsorbing members 91 and fourth adsorbing members 92 arranged at intervals. Each set of the third adsorbing members 91 is arranged opposite to the fourth adsorbing members 92. Furthermore, the third adsorbing member 91 is vertically connected to the end face of the first fixing bracket 5 facing away from the first adsorbing member 41, and the fourth adsorbing member 92 is vertically connected to the end face of the third fixing bracket 10 opposite to the first fixing bracket 5, so as to maximize the displacement of the driving component 1 into the displacement between the fourth adsorbing member 92 and the third adsorbing member 91, and then realize pulling the air bag of the battery cell to a larger opening degree to ensure that the electrolyte injection operation can be smoothly completed.

[0086] It can be understood that in other embodiments, the second adsorption component 9 may further include multiple sets of third adsorbing members 91 and fourth adsorbing members 92 arranged at intervals. Each set of the third adsorbing members 91 is arranged opposite to the fourth adsorbing members 92 to adsorb on both sides of the air bag of the battery cell and pull open the air bag of the battery cell.

[0087] Please also refer to Figures 1 to 7 This application Figure 1 The working process of the battery cell film pulling device 100 provided is as follows:

[0088] Before the cell airbag is loaded, the first driving member 21 controls the retraction of the limiting plate 222 to disengage from the extending path of the output end of the driving assembly 1. At this time, the driving assembly 1 can extend the maximum distance, and then drive the first transmission assembly 3 to move the maximum distance, so that the second adsorbing member 42 moves to the position farthest from the first adsorbing member 41, realizing that the first adsorbing member assembly 4 is opened to the maximum opening degree to ensure the lossless loading of the cell airbag; after the cell airbag is loaded, the output end of the driving assembly 1 is controlled to retract to the initial position, and the output end 11 of the driving assembly 1 drives the connected first transmission assembly 3 to move in the direction close to the driving assembly 1 (in the direction of the initial position). During the movement of the first transmission assembly 3 in the direction close to the driving assembly 1, the first transmission assembly 3 drives the second fixing bracket 6 connected to the first transmission assembly 3 to approach the fixedly arranged first fixing bracket 5, thereby making the second adsorbing member 42 approach the first adsorbing member 41, so that the second adsorbing member 42 and the first adsorbing member 41 adsorb on both sides of the cell airbag output by the external cell airbag loading mechanism; during the transmission of the second fixing bracket 6, the first transmission assembly 3 also drives the connecting rod 7 rotatably connected to itself to rotate around the second end, driving the first end on the connecting rod 7 to move in the direction close to the end of the first fixing bracket 5, so that the second transmission assembly 8 connected to the connecting rod 7 moves in the direction close to the first fixing bracket 5, and then drives the third fixing bracket 10 to approach the first fixing bracket 5 synchronously. During this process, the fourth adsorbing member 92 is driven to approach the third adsorbing member 91, so that the fourth adsorbing member 92 and the third adsorbing member 91 adsorb on both sides of another cell airbag output by the external cell airbag loading mechanism; after the first adsorbing member 41 and the second adsorbing member 42 adsorb on both sides of the cell airbag, and the fourth adsorbing member 92 and the third adsorbing member 91 adsorb on both sides of the cell airbag, the first driving member 21 controls the limiting plate 222 to extend into the extending path of the output end 11 of the driving assembly 1, thereby limiting the extending length of the output end 11 of the driving assembly 1. When the output end 11 of the driving assembly 1 is controlled to extend outward again, the first transmission assembly 3 is driven to move in the direction away from the driving assembly 1, and then drives the second fixing bracket 6 to move away from the first fixing bracket 5, so that the second adsorbing member 42 moves away from the first adsorbing member 41 while adsorbing both sides of the cell airbag, realizing pulling the adsorbed cell airbag with a smaller opening degree; similarly, during the process of the second adsorbing member 42 and the first adsorbing member 41 pulling the cell airbag, the connecting rod 7 is driven by the first transmission assembly 3 to rotate in the opposite direction, so that the first end 71 of the connecting rod 7 moves away from the first fixing bracket 5, realizing driving the second transmission assembly 8 connected to the connecting rod 7 to move in the direction away from the first fixing bracket 5, thereby driving the third fixing bracket 10 to move away from the first fixing bracket 5, so that the fourth adsorbing member 92 adsorbing the cell airbag moves away from the third adsorbing member 91, and then realizing pulling both sides of the cell airbag with a smaller opening degree, completing the action of pulling the cell airbag to execute the step of electrolyte injection.

[0089] Without contradiction, any of the above embodiments can be combined with each other to achieve better performance. The cell film pulling device 100 provided by the present application can quickly and accurately open the cell airbag through a cell film pulling device 100 with a relatively simple structure, reducing the cost investment of the cell film pulling device 100 and improving the efficiency and accuracy of cell film pulling. At the same time, the cell film pulling device 100 provided by the present application realizes controlling the extension or retraction of the limiting plate 222 by the first driving member 21 through the regulation assembly 2 including the first driving member 21, the limiting member 221 and the limiting plate 222, thereby enabling the driving assembly 1 to have different displacement distances, and thus adjusting the displacement distance between the relatively arranged adsorbing members in each group of adsorption assemblies, and further enabling the opening degree of the cell airbag to be conveniently adjusted according to production requirements.

[0090] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present application by the same token.

Claims

1. A core film pulling device, characterized in that, Comprising: A driving component; A first transmission component connected to the output end of the driving component; A first adsorption component including at least one set of relatively arranged first adsorbing members and second adsorbing members, and the cross-sections of the first adsorbing members and the second adsorbing members in the radial direction are circular; The second adsorbing member is connected to the first end of the first transmission component far from the driving component, the first adsorbing member is connected to an external base, and the second adsorbing member approaches the first adsorbing member under the transmission of the first transmission component to adsorb both sides of the cell airbag or moves away from the first adsorbing member to open the cell airbag; A regulation component connected to the driving component for regulating the displacement distance of the output end of the driving component, thereby adjusting the maximum distance of the second adsorbing member away from the first adsorbing member; A first fixing bracket and a second fixing bracket extending in the same direction and arranged side by side at intervals, the second fixing bracket is connected to the end of the first transmission component far from the driving component, the first fixing bracket is fixedly connected to the external base, the first adsorbing member is connected to the first fixing bracket, and the second adsorbing member is connected to the end face of the second fixing bracket opposite to the first fixing bracket. The second fixing bracket approaches / separates from the first fixing bracket under the drive of the driving component, thereby driving the second adsorbing member to approach / separate from the first adsorbing member.

2. The device according to claim 1, characterized in that The regulation component includes a first driving member and a limiting component connected to the first driving member. The driving component includes a cylinder, and the limiting component is used to extend into the extending path of the piston rod or retract from the extending path of the piston rod under the control of the first driving component to regulate the extending length of the piston rod.

3. The device according to claim 2, characterized in that, The limiting component includes a limiting member and a limiting plate. The limiting member is arranged on the piston rod of the driving component, and the limiting plate is connected to the output end of the first driving member. The limiting plate extends under the drive of the first driving member to cooperate with the limiting member to limit the displacement distance of the piston rod of the driving component.

4. The device according to claim 1, characterized in that, The driving component includes a motor, and the regulation component includes an electronic control unit connected to the motor for controlling the displacement distance of the output end of the motor.

5. The device according to claim 1, characterized in that, The device further includes: A second transmission component; A connecting rod rotatably arranged on the first fixing bracket. One end of the connecting rod is rotatably connected to the first transmission component, and the other end of the connecting rod is connected to the second transmission component; A second adsorption component including at least one set of relatively arranged third adsorbing members and fourth adsorbing members. The third adsorbing members are connected to the external base, and the fourth adsorbing members are connected to the end of the second transmission component facing away from the first adsorption component.

6. The device according to claim 5, characterized in that The device further includes: a third fixing bracket connected to the end of the second transmission component far from the connecting rod for connecting the second transmission component and the fourth adsorbing member. The third fixing bracket is arranged side by side and at intervals with the first fixing bracket, and the third fixing bracket is arranged on the side of the first fixing bracket facing away from the second fixing bracket.

7. The device according to claim 6, characterized in that, The first fixing bracket and the second fixing bracket are arranged in parallel; And / or The first fixing bracket and the third fixing bracket are arranged in parallel.

8. The device according to claim 5, characterized in that, The first transmission assembly includes a first slider and a first slide rail that are slidably connected. One of the first slider and the first slide rail is fixedly connected to the external base, and the other of the first slider and the first slide rail is connected to the connecting rod and is connected to the output end of the driving assembly. Further, under the drive of the driving assembly, the connecting rod is driven to rotate around the second end, and the second end is the connecting end of the connecting rod and the first fixing bracket; The second transmission assembly includes a second slider and a second slide rail that are slidably connected. One of the second slider and the second slide rail is fixedly connected to the external base, and the other of the second slider and the second slide rail is connected to the connecting rod, thereby driving the fourth adsorbent to approach or move away from the third adsorbent.

9. The device according to claim 8, wherein The first transmission assembly further includes a first moving plate, and the first moving plate connects the first end of the connecting rod and the first slider and the first slide rail connected to the output end of the driving assembly, thereby driving the connecting rod to rotate around the second end under the drive of the driving assembly; and / or The second transmission assembly further includes a second moving plate, and the second moving plate connects the third end of the connecting rod and the second slider or the second slide rail for sliding, thereby driving the fourth adsorbent to approach or move away from the third adsorbent.

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