Lifting diaphragm guide device for lithium battery diaphragm production

Abstract

The utility model discloses a lifting membrane guide device for lithium battery membrane production. The lifting membrane guide device comprises a membrane guide plate, a supporting seat and a moving assembly, the film guide plate is positioned beside the chain clip device; the moving assembly is connected between the supporting seat and the film guide plate, and the moving assembly can drive the film guide plate to move between a first position and a second position; when the film guide plate is located at the second position, the top surface of the film guide plate and a chain clip opening of the chain clip device are located on the same plane, and when the film guide plate is located at the first position, the top surface of the film guide plate is lower than the plane where the chain clip opening is located. In the diaphragm machining process, the moving assembly can drive the diaphragm guide plate to move to the second position before diaphragm penetrating, so that the diaphragm guide plate supports the edge of the diaphragm to guide the diaphragm towards the two sides, and the edge of the diaphragm can be conveniently fed into a chain clip opening. After the diaphragm is successfully fed, the moving assembly drives the diaphragm guide plate to move to the first position, so that the height of the top surface of the diaphragm guide plate is lower than that of the clip opening of the chain clip, and the diaphragm of the lithium battery is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery separator production, and more specifically, to a lifting film guiding device for lithium battery separator production. Background Art

[0002] Lithium-ion batteries have the characteristics of high energy density, long cycle life, no memory effect, and environmental friendliness, and are widely used as energy storage devices in products such as consumer electronics and power tools. The transverse stretching is one of the important components of the lithium battery separator production line. Its main function is to horizontally stretch the separator after passing through the longitudinal stretching unit, and then form a film roll finished product through the traction and winding process. The chain clip is an indispensable device in the transverse stretching unit (transverse stretching drive) and plays a crucial role. The chain clip is used as a guiding and fixing part for clamping the film surface and a force-applying stretching part. The moving and guiding function of the chain clip is realized through a customized roller located on the side of the chain clip and a flat track below the relative roller. For the entrance of the lithium battery separator transverse stretching unit, it is relatively difficult for the edge of the lithium battery separator to penetrate into the chain clip, and there is a great safety risk when personnel thread the film. During the production process, when the film surface shrinks due to temperature changes and the deviation rectification is abnormal, the edge is likely to be disengaged from the clip. Therefore, it is necessary to add an auxiliary film guiding device at the entrance. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a film guiding device for assisting in threading the separator.

[0004] The utility model provides a lifting film guiding device for lithium battery separator production, including a film guiding plate, a support seat, and a moving component;

[0005] The film guiding plate is located beside the chain clip device;

[0006] The moving component is connected between the support seat and the film guiding plate, and the moving component can drive the film guiding plate to move between a first position and a second position;

[0007] When the film guiding plate is in the second position, the top surface of the film guiding plate is in the same plane as the clip opening of the chain clip device of the chain clip. When the film guiding plate is in the first position, the top surface of the film guiding plate is lower than the plane where the clip opening of the chain clip is located.

[0008] Optionally, the first position is located obliquely below the second position, and the second position and the first position are arranged in sequence in the moving direction of the lithium battery separator.

[0009] Optionally, the moving component includes a telescopic rod and a first support rod;

[0010] The two ends of the first support rod in the length direction are respectively hinged to the bottom of the film guiding plate and the support seat;

[0011] The fixed end of the telescopic rod is hinged to the support seat, and the free end of the telescopic rod is hinged to the first support rod.

[0012] Optionally, the moving component further includes a second support rod, and the two ends of the second support rod in the length direction are respectively hinged to the bottom of the film guiding plate and the support seat;

[0013] The telescopic rod is located between the first support rod and the second support rod.

[0014] Optionally, the support seat is a support plate, the support plate is perpendicular to the film guiding plate, and the bottoms of the first support rod and the second support rod are both hinged to one side surface of the support plate.

[0015] Optionally, a hinge seat is vertically and fixedly connected to the bottom surface of the film guiding plate;

[0016] The tops of the first support rod and the second support rod are both hinged to one side surface of the hinge seat.

[0017] Optionally, the telescopic rod is a pneumatic telescopic rod or a hydraulic telescopic rod.

[0018] Optionally, the top surface of the film guiding plate includes a notch portion facing the chain clamp device, and the outer edge of the notch portion includes a straight line segment and an arc segment that are sequentially extended and connected.

[0019] Optionally, the corners of the top surface of the film guiding plate are rounded.

[0020] According to the technical content disclosed by the present invention, the following beneficial effects are achieved:

[0021] During the diaphragm processing, the film threading personnel first need to clamp both sides of the film with the chain clamps. The lifting film guiding device for lithium battery diaphragm production provided by the present invention can drive the film guiding plate to move to the second position through the moving component before film threading. At this time, the top surface of the film guiding plate and the clamping mouth of the chain clamp of the chain clamp device are on the same plane. The film guiding plate supporting the edge of the film can give a guiding effect to the diaphragm on both sides. The film threading personnel can hold the diaphragm against the film guiding plate and send the edge of the diaphragm into the clamping mouth of the chain clamp, reducing the film threading difficulty and improving the film threading efficiency. When the lithium battery diaphragm has been successfully inserted into the film, that is, the chain clamp clamps the lithium battery diaphragm and enters the subsequent process, the moving component drives the film guiding plate to move to the first position, so that the height of the top surface of the film guiding plate is lower than the height of the clamping mouth of the chain clamp. At this time, the lithium battery diaphragm does not contact the film guiding plate during the normal production process, thereby avoiding scratching the lithium battery diaphragm.

[0022] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. Description of the Drawings

[0023] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0024] Figure 1 Installation schematic diagram of the lifting film guiding device for lithium battery separator production of the present utility model.

[0025] Figure 2 Structural diagram of the first state of the lifting film guiding device for lithium battery separator production of the present utility model.

[0026] Figure 3 Structural diagram of the second state of the lifting film guiding device for lithium battery separator production of the present utility model.

[0027] Description of reference numerals: 11, film guiding plate; 1101, notch part; 121, first support rod; 122, second support rod; 13, support plate; 14, rotating shaft; 15, pneumatic telescopic rod; 2, chain clamp device; 3, track device. Detailed implementation manners

[0028] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way limits the present utility model, its application or use.

[0030] Known technologies, methods and devices for those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification.

[0031] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0032] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0033] See Figures 1 to 3 , the present utility model discloses a lifting film guiding device for lithium battery separator production, which can give a guiding effect to the separator in both directions when threading the film in the horizontal pulling unit.

[0034] The lifting film guiding device includes a film guiding plate 11, a support base, and a moving component. The moving component is connected between the support base and the film guiding plate 11, and the moving component can drive the film guiding plate 11 to move between a first position and a second position. The first position is obliquely below the second position, and the second position and the first position are arranged in sequence in the moving direction of the lithium battery separator. When the film guiding plate 11 is located at the second position, the top surface of the film guiding plate 11 is in the same plane as the clamping mouth of the chain clamp device 2. When the film guiding plate 11 is located at the first position, the top surface of the film guiding plate 11 is lower than the plane where the clamping mouth is located.

[0035] The film guiding plate 11 is arranged in the horizontal direction, and its top surface is parallel to the horizontal plane. The support base is a support plate 13 with a plate-like structure. The support plate 13 is arranged in the vertical direction, and the support plate 13 is perpendicular to the film guiding plate 11, and the film guiding plate 11 is located above the support plate 13.

[0036] The support base is a support plate 13 with a plate-like structure. Both the support plate 13 and the film guiding plate 11 are located beside the chain clamp device 2. The moving component includes a first rod 121, a second rod 122, and a telescopic rod. The two ends of the first rod 121 and the second rod 122 are respectively hinged to the bottom of the film guiding plate 11 and the support base. Specifically, a hinge seat is perpendicularly connected to the bottom surface of the film guiding plate 11. The top of the first rod 121 and the top of the second rod 122 are both hinged to one side surface of the hinge seat. The bottom of the first rod 121 and the bottom of the second rod 122 are both hinged to one side surface of the support plate 13. The fixed end of the telescopic rod is hinged to the support base, and the free end of the telescopic rod is hinged to the middle-upper part of the first rod 121. The rotating shaft 14 connecting the telescopic rod and the support plate 13 is located between the rotating shaft 14 connecting the first rod 121 and the support plate 13 and the rotating shaft 14 connecting the second rod 122 and the support plate 13. The rotating shaft 14 is cylindrical and is equipped with a lubricating sleeve on the outside, which can drive the first rod 121 and the second rod 122 to rotate. In this embodiment, the telescopic rod is a pneumatic telescopic rod 15 or a hydraulic telescopic rod.

[0037] Furthermore, in order to cooperate with the arc design of the track device 3 of the chain clamp device 2, the top surface of the film guiding plate 11 includes a notch portion 1101 facing the chain clamp device 2. The outer edge of the notch portion 1101 includes a straight line segment and an arc segment that are sequentially extended and connected. The corners of the top surface of the film guiding plate 11 are rounded.

[0038] The film guiding lifting device is connected to the track device 3 at the entrance. When the lithium battery separator first arrives at the entrance of the stretching device, the air cylinder of the pneumatic telescopic rod 15 is connected to the air and controlled to fully retract, driving the film guiding plate 11 to move to the second position, so that the top surface of the film guiding plate 11 is on the same plane as the jaw of the chain gripper. Then the chain gripper clamps both sides of the film. The film guiding plate 11 arranged in front of the chain gripper can guide the lithium battery separator into the jaw of the chain gripper to achieve smooth film clamping. After the lithium battery separator successfully enters the film, it is then transported to the oven by the chain gripper device 2 for heating and stretching; when the lithium battery separator successfully enters the film, if the film guiding plate 11 always supports the lithium battery separator, there is a risk of scratching or rubbing the lithium battery separator. At this time, the pneumatic telescopic rod 15 needs to be extended to drive the film guiding plate 11 to move to the first position. Specifically, the pneumatic telescopic rod 15 pushes the second rod 122 to rotate around its rotation axis 14, and then drives the first rod 121 to rotate around its rotation axis 14, driving the film guiding plate 11 to move forward and downward, so that the height of the film guiding plate 11 is lower than the height of the jaw of the chain gripper. At this time, the lithium battery separator does not come into contact with the film guiding plate 11 during normal production, thus avoiding scratching the lithium battery separator.

[0039] In summary, the lifting film guiding device provided by the present utility model for the production of lithium battery separators can give a guiding effect to the separator in both directions when threading the film in the horizontal stretching unit. The threading operator can hold the separator against the film guiding plate 11 and send the edge of the separator into the jaw of the chain gripper. Moreover, during the production process, the film guiding plate 11 drops and does not contact the lithium battery separator. The moving component is the core component of this lithium battery separator stretching device. When the lithium battery separator starts to enter the film stage, it is necessary to rely on the film guiding plate 11 to support the edge of the film, which is beneficial for guiding the lithium battery separator into the jaw of the chain gripper until the chain gripper clamps the film. When the lithium battery separator has successfully entered the film, that is, after the chain gripper clamps the lithium battery separator and enters the subsequent process, there is no need to continue guiding the film, otherwise it will cause the lithium battery separator to be in direct contact and friction with the film guiding plate 11, affecting the surface quality of the lithium battery separator and reducing the product quality. Seriously, it may lead to batch scrapping. The operation of the present utility model is simple. By pushing out the pneumatic telescopic rod 15 to lower the height of the film guiding plate 11, the reliability and continuity during the production process are ensured, the safety factor and the service life of the equipment are improved. This method has fewer moving parts, can also reduce energy consumption and save costs.

[0040] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A lifting film guiding device for lithium battery separator production, characterized in that, Comprising: A film guiding plate, a support seat, and a moving component; The film guiding plate is located beside the chain gripper device; The moving component is connected between the support seat and the film guiding plate, and the moving component can drive the film guiding plate to move between a first position and a second position; When the film guiding plate is located at the second position, the top surface of the film guiding plate is in the same plane as the jaws of the chain gripper of the chain gripper device. When the film guiding plate is located at the first position, the top surface of the film guiding plate is lower than the plane where the jaws of the chain gripper are located.

2. The lifting film guiding device for lithium battery separator production according to claim 1, wherein: The first position is located obliquely below the second position, and the second position and the first position are arranged in sequence in the moving direction of the lithium battery separator.

3. The lifting film guiding device for lithium battery separator production according to claim 1 or 2, wherein: The moving component includes a telescopic rod and a first support rod; The two ends of the first support rod in the length direction are respectively hinged to the bottom of the film guiding plate and the support seat; The fixed end of the telescopic rod is hinged to the support seat, and the free end of the telescopic rod is hinged to the first support rod.

4. The lifting film guiding device for lithium battery separator production according to claim 3, wherein: The moving component further includes a second support rod, and the two ends of the second support rod in the length direction are respectively hinged to the bottom of the film guiding plate and the support seat; The telescopic rod is located between the first support rod and the second support rod.

5. The lifting film guiding device for lithium battery separator production according to claim 4, wherein: The support seat is a support plate, the support plate is perpendicular to the film guiding plate, and the bottoms of the first support rod and the second support rod are both hinged to one side surface of the support plate.

6. The lifting film guiding device for lithium battery separator production according to claim 4, wherein: A hinge seat is vertically and connected to the bottom surface of the film guiding plate; The tops of the first support rod and the second support rod are both hinged to one side surface of the hinge seat.

7. The lifting film guiding device for lithium battery separator production according to claim 3, wherein: The telescopic rod is a pneumatic telescopic rod or a hydraulic telescopic rod.

8. The lifting film guiding device for lithium battery separator production according to claim 1 or 2, wherein: The top surface of the film guiding plate includes a notch portion facing the chain gripper device, and the outer edge of the notch portion includes a straight line segment and an arc segment that are sequentially extended and connected.

9. The lifting film guiding device for lithium battery separator production according to claim 1 or 2, wherein: The corners of the top surface of the film guiding plate are rounded.

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