Diaphragm traction device and pole core preparation system
By designing a diaphragm traction device including a traction mechanism and a traction mechanism, the existing device is solved, and efficient traction and rapid movement of the diaphragm are achieved.
Patent Information
- Application Number
- CN202323527806.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing diaphragm traction devices are bulky and have large mass, resulting in slow movement speed and low efficiency.
A diaphragm traction device is designed, including a traction mechanism and a traction mechanism. The traction mechanism switches between the two sets of traction clamps and a traction mechanism to achieve efficient traction of the diaphragm.
By simplifying the structure, reducing weight and improving flexibility, the efficiency of the diaphragm traction device is improved, and the rapid and stable movement of the diaphragm is achieved.
Smart Images
Figure CN222440791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of batteries, in particular to a diaphragm traction device and a pole core preparation system. Background Art
[0002] A battery is a device that can convert chemical energy into electrical energy. It consists of a positive electrode, a negative electrode, and an electrolyte. When a conductive circuit is connected between the positive and negative electrodes, a chemical reaction occurs in the battery, generating electron flow and potential difference, thereby achieving energy conversion.
[0003] In the prior art, during the manufacturing process of the battery, the pole core is prepared by stacking the positive electrode sheet and the negative electrode sheet, separating them with a diaphragm, to form a positive and negative electrode stacking structure. Usually, a diaphragm traction device is used to pull the diaphragm and cover the diaphragm on the stacking table. However, if the diaphragm needs to cover multiple positive electrode sheets or negative electrode sheets on the stacking table, the diaphragm traction device needs to pull the diaphragm to move a long distance and apply a large traction force, which makes the existing diaphragm traction device bulky and heavy, resulting in a slow moving speed and low efficiency of the diaphragm traction device. Utility Model Content
[0004] In view of this, the utility model provides a diaphragm traction device and a pole core preparation system to solve the problem that the existing diaphragm traction device is overall bulky, has a large mass, and moves slowly, resulting in low efficiency of the diaphragm traction device.
[0005] In a first aspect, the utility model provides a diaphragm pulling device, comprising:
[0006] A traction mechanism, adapted to move along the length direction of the stacking platform, the traction mechanism comprising a frame and two sets of traction clamps, the two sets of traction clamps being fixedly mounted on the frame with their backs facing each other and located above the stacking platform, both having a clamped state and an open state;
[0007] Two groups of spreading mechanisms are respectively arranged at the two ends of the stacking table in the length direction, and the two groups of spreading mechanisms are respectively provided with driving members, and the traction mechanism switches between the two groups of spreading mechanisms, and the positions of each group of spreading mechanisms corresponding to the two groups of traction clamps are respectively the film loading position and the film placing position;
[0008] One group of the traction clamps is suitable for clamping the diaphragm in the clamping state after the film is applied at the upper film position on the side, and moving it to the film releasing position on the other side, and the driving member drives the expansion mechanism to press the traction clamps down to the expanded state to release the diaphragm; the other group of the traction clamps is suitable for clamping the diaphragm in the clamping state after the film is applied at the upper film position on the side, and moving it to the film releasing position on the other side, and the driving member drives the expansion mechanism to press the traction clamps down to the expanded state to release the diaphragm.
[0009] Beneficial effect: In this diaphragm traction device, the traction mechanism moves to one end close to the stacking platform. When one set of traction clamps on the traction mechanism is in a clamping state and clamps the diaphragm to the film release position, the driving member drives the corresponding opening mechanism to make the opening mechanism press down the traction clamp until the traction clamp switches from the clamping state to the opening state, so that the traction clamp opens and releases the diaphragm, completing the diaphragm release action. When another set of traction clamps on the traction mechanism moves to the upper film position in a clamping state, the driving member drives the corresponding opening mechanism to press down the traction clamp, so that the traction clamp switches from the clamping state to the opening state. When the diaphragm close to the end of the stacking platform enters the clamping area of the traction clamp, the traction clamp switches from the opening state to the clamping state to clamp the diaphragm, completing the diaphragm clamping action.
[0010] Similarly, the traction mechanism moves to the other end near the stacking platform, and when one set of traction clamps on the traction mechanism is in a clamped state and clamps the diaphragm to the film release position, the driving member drives the corresponding opening mechanism to press down the traction clamp until the traction clamp switches from the clamped state to the open state, so that the traction clamp opens and releases the diaphragm, and the diaphragm release action is completed again. When another set of traction clamps on the traction mechanism moves to the upper film position in a clamped state, the driving member drives the corresponding opening mechanism to press down the traction clamp, so that the traction clamp switches from the clamped state to the open state. When the diaphragm near the end of the stacking platform enters the clamping area of the traction clamp, the traction clamp switches from the open state to the clamped state to clamp the diaphragm, and the diaphragm clamping action is completed again.
[0011] Two sets of traction clamps are arranged back to back on the frame of the traction mechanism. When the traction mechanism moves between the two sets of opening mechanisms, one set of traction clamps clamps the diaphragm and pulls the diaphragm to move along the length direction of the stack, and the other set of traction clamps is in a clamping state without diaphragm clamping. The overall structure of the traction mechanism is simplified, the overall weight of the traction mechanism is reduced, and it can switch between the two sets of opening mechanisms, thereby improving the efficiency of the whole machine.
[0012] In addition, the traction mechanism and the expansion mechanism are arranged separately, and the traction mechanism does not need to drive the expansion mechanism to move synchronously during the movement, which further reduces the weight of the traction mechanism, improves the flexibility of the traction mechanism, and thus improves the diaphragm traction efficiency. At the same time, when the traction clamp reaches the specified position, the expansion mechanism switches the traction clamp to the specified state, completing the action of the traction clamp releasing or clamping the diaphragm.
[0013] In an optional embodiment, the expansion mechanism includes a pushing member, which is arranged corresponding to the film placing position, the pushing member is connected to the driving member, and the end of the pushing member is arranged corresponding to one group of the traction clamps. When the traction clamp moves to the pushing member, the driving member drives the pushing member to press down the traction clamp, so that the traction clamp switches from the clamping state to the expanded state.
[0014] Beneficial effect: By connecting the driving member with the pushing member, the driving member drives the pushing member to move toward the traction clamp, so that the pushing member presses down the traction clamp, the traction clamp is switched from a clamped state to an expanded state, and the traction clamp releases the diaphragm. The structure is simple, easy to operate, and the reliability and stability of the expansion mechanism are improved.
[0015] In an optional embodiment, the expansion mechanism further includes a support rod, the support rod is arranged corresponding to the upper film position, the support rod is spaced apart from the pusher, one end of the support rod is connected to the driving member, and the other end of the support rod is provided with a roller;
[0016] When the traction clamp moves to the support rod, the driving member drives the support rod to move toward the traction clamp, so that the roller surface contacts the traction clamp surface, and the roller presses down the traction clamp to switch the traction clamp from the clamped state to the expanded state until the diaphragm enters the clamping area of the traction clamp, and the driving member drives the support rod to move in the direction away from the traction clamp, so that the traction clamp switches from the expanded state to the clamped state.
[0017] Beneficial effect: The driving member drives the support rod to move toward the traction clamp, so that the roller on the support rod contacts the surface of the traction clamp until the roller presses down the traction clamp, so that the traction clamp switches from a clamped state to an expanded state. In the process of the traction clamp moving toward the diaphragm, the roller continues to press down the surface of the traction clamp, the roller rotates on the surface of the traction clamp, and the traction clamp continues to be in an expanded state until the diaphragm enters the clamping area of the traction clamp. At this time, the driving member drives the support rod to move in the direction away from the traction clamp, and the roller moves away from the traction clamp, so that the traction clamp switches from an expanded state to a clamped state, completing the diaphragm clamping action. During the whole process, the traction clamp is pressed down by the roller, and the traction clamp is in contact with the roller during the movement, so that the traction clamp can remain in an expanded state for a period of time during the movement, so as to facilitate the diaphragm to enter the clamping area of the traction clamp, and in the process of the traction clamp moving in the expanded state, the roller rolls on the surface of the traction clamp, reducing the friction between the roller and the traction clamp, ensuring the consistency of the moving speed of the traction clamp, avoiding the reduction of the moving speed of the traction clamp due to the increase of friction, thereby improving the diaphragm traction efficiency of the diaphragm traction device, and at the same time, reducing the surface wear of the traction clamp.
[0018] In an optional embodiment, the two groups of traction clamps are symmetrically arranged about the axis of the length direction of the frame.
[0019] Beneficial effects: By symmetrically arranging the two groups of traction clamps on the traction mechanism, the structural stability of the traction mechanism is improved, so as to facilitate the manufacture and installation of the traction mechanism and reduce the complexity of processing and assembly.
[0020] In an optional embodiment, the traction clamp includes a first clamp, a second clamp and an elastic preload, the first clamp is fixed on the frame, the second clamp is rotatably mounted on the first clamp via a rotating shaft, one end of the elastic preload abuts against the first clamp, and the other end abuts against the second clamp, the elastic preload applies an elastic force to the second clamp, so that the traction clamp is in the clamping state.
[0021] Beneficial effect: By applying elastic force to the second clamp through the elastic preload, the traction clamp is always in a clamped state without being affected by external force, and the traction clamp that clamps the diaphragm can always clamp the diaphragm without being affected by external force, ensuring that the traction mechanism pulls the diaphragm normally during movement. At the same time, by applying external force to the second clamp, the second clamp rotates around the rotation axis equivalent to the first clamp, so that the traction clamp enters the open state. After the external force on the second clamp is removed, the elastic force applied to the second clamp by the elastic preload can switch the traction clamp to the open state. This traction clamp has a simple structure and improves the reliability and stability of the traction clamp.
[0022] In an optional embodiment, the abutment surface of the second clip corresponding to the pushing member is set to a horizontal plane.
[0023] Beneficial effect: By setting the abutting surface between the second clamp and the pushing member as a horizontal plane, the contact area between the pushing member and the second clamp is increased, ensuring that the pushing member can stably push the second clamp, so that the traction clamp is switched to the expanded state.
[0024] In an optional embodiment, the contact surface between the second clamp and the roller is configured as an inclined surface.
[0025] Beneficial effect: By setting an inclined surface on the second clamp, when the second clamp reaches the upper membrane position, the inclined surface contacts the roller, and when the traction clamp moves toward the roller, the roller rolls on the inclined surface, so that the traction clamp is gradually subjected to downward pressure during the movement until the traction clamp switches to the expanded state, and the roller exerts downward pressure on the inclined surface is a continuous process. During this process, the traction clamp can maintain the expanded state for a period of time while moving, so as to facilitate the diaphragm to enter the clamping area of the traction clamp.
[0026] In an optional embodiment, the first clip is integrally formed with the frame, and / or two groups of the first clips are integrally formed.
[0027] Beneficial effect: By forming the first clamping piece of the traction clamp into an integral part with the frame, the structural strength and reliability of the traction mechanism are improved, and the weight of the traction mechanism itself is reduced, so that the traction mechanism can move quickly above the stacking platform.
[0028] In an optional embodiment, it further includes a guide rail, which is arranged along the length direction of the stacking platform, and the frame is movably arranged on the guide rail.
[0029] Beneficial effect: by arranging guide rails in the length direction of the stacking platform, the frame is moved and arranged on the guide rails, providing movement guidance for the traction mechanism, thereby improving the movement smoothness and stability of the traction mechanism.
[0030] In a second aspect, the utility model also provides a core preparation system, comprising:
[0031] Stacking platform;
[0032] A transport mechanism, adapted to transport the pole piece to the stacking platform;
[0033] Two sets of film placing mechanisms are respectively arranged at two ends of the stacking platform in the length direction;
[0034] The diaphragm traction device, the traction mechanism is movably arranged between the two groups of the film placing mechanisms and is provided with a space for the stacking platform to pass through.
[0035] Beneficial effect: The pole piece is transported to the stacking table by the transport mechanism, and one set of traction clamps of the traction mechanism clamps the diaphragm on the film placing mechanism and moves along the length direction of the stacking table until the traction mechanism moves to the other end of the stacking table, and then the pole piece is transported to the diaphragm on the stacking table by the transport mechanism, and the diaphragm on the film placing mechanism is clamped by another set of traction clamps of the traction mechanism, and the diaphragm is pulled to the other end of the stacking table, and the above process is repeated until the pole core is completed. In the process of preparing the pole core, the diaphragm is clamped by the traction mechanism and switched between the two sets of film placing mechanisms, which improves the preparation efficiency of the pole core.
[0036] In an optional embodiment, when the traction mechanism clamps the diaphragm and moves along the length direction of the stacking platform, the film placing mechanism connected to the diaphragm is suitable for moving in the same direction as the traction mechanism so that the film placing mechanism is close to the stacking platform, and a cutting piece is provided on the film placing mechanism, and the cutting piece is used to cut the diaphragm after the film placing is completed.
[0037] Beneficial effect: When the traction mechanism clamps the diaphragm and moves along the length direction of the stack, the film placing mechanism connected to the diaphragm will also move toward the stack direction, so that the film placing mechanism is close to the stack, reducing the distance between the film placing mechanism and the edge of the stack. After the film placing is completed, the diaphragm is cut off by the cutting piece on the film placing mechanism, thereby making the distance between the edge of the diaphragm and the edge of the stack as small as possible to avoid wasting the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0039] Figure 1 This is a front view of a diaphragm pulling device according to an embodiment of the utility model;
[0040] Figure 2 for Figure 1 The structural schematic diagram of the traction mechanism shown;
[0041] Figure 3 for Figure 2 An enlarged schematic diagram of the middle traction clamp portion;
[0042] Figure 4 for Figure 1 A front view of the expansion mechanism shown.
[0043] Description of reference numerals:
[0044] 1. Driving member; 2. Traction mechanism; 201. Frame; 202. Traction clamp; 2021. First clamp; 2022. Second clamp; 20221. Horizontal plane; 20223. Inclined plane; 2024. Rotating axis; 3. Stacking table; 4. Spreading mechanism; 401. Pushing member; 402. Support rod; 403. Roller; 404. Fixed plate; 5. Guide rail; 6. Film placing position; 7. Film placing position; 8. Film placing mechanism. DETAILED DESCRIPTION
[0045] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0046] In the related art, during the manufacturing process of the battery, the electrode core is prepared by stacking the positive electrode sheet and the negative electrode sheet, separating them with a diaphragm, to form a positive and negative electrode stacking structure. Usually, a diaphragm traction device is used to pull the diaphragm and cover the diaphragm on the stacking table. However, if the diaphragm needs to cover multiple positive or negative electrode sheets on the stacking table, the diaphragm traction device needs to pull the diaphragm to move a long distance and apply a large traction force, which makes the existing diaphragm traction device bulky and heavy as a whole, resulting in a slow moving speed and low efficiency of the diaphragm traction device.
[0047] In order to solve the above technical problems, the following Figures 1 to 4 , describing an embodiment of the utility model.
[0048] According to an embodiment of the present utility model, on the one hand, as Figure 1 to Figure 2 As shown, a diaphragm traction device is provided, including a traction mechanism 2 and two sets of expansion mechanisms 4.
[0049] Specifically, Figure 1 and Figure 2 As shown, the traction mechanism 2 is suitable for moving along the length direction of the stacking platform 3. The traction mechanism 2 includes a frame 201 and two groups of traction clamps 202, the two groups of traction clamps 202 are fixedly arranged on the frame 201 with their backs facing each other, and the two groups of traction clamps 202 are both located above the stacking platform 3, and the two groups of traction clamps 202 have a clamping state and an open state.
[0050] It should be noted that the two groups of traction clamps 202 are arranged back to back, which can be understood as, when the traction mechanism 2 is located at one end of the stacking platform 3, one group of traction clamps 202 faces one end of the stacking platform 3, and the other group of traction clamps 202 faces the other end of the stacking platform 3. When the traction mechanism 2 moves to the other end of the stacking platform 3, the positions of the two groups of traction clamps 202 are exactly interchanged with the position of the stacking platform 3.
[0051] Specifically, Figure 1 As shown, the two groups of spreading mechanisms 4 are respectively located at the two ends of the stacking platform 3 in the length direction, and the two groups of spreading mechanisms 4 are respectively provided with driving members 1, which are used to drive the two groups of spreading mechanisms 4. The traction mechanism 2 switches between the two groups of spreading mechanisms 4, and the positions of each group of spreading mechanisms 4 corresponding to the two groups of traction clamps 202 are the film loading position 6 and the film placing position 7 respectively.
[0052] like Figure 1 As shown, for the film applying position 6 and the film placing position 7, it can be understood that the opening mechanism 4 near one end of the stacking platform 3 is respectively provided with the film applying position 6 and the film placing position 7 corresponding to the positions of the two groups of traction clamps 202, and the opening mechanism 4 near the other end of the stacking platform 3 is respectively provided with the film applying position 6 and the film placing position 7 corresponding to the positions of the two groups of traction clamps 202.
[0053] Specifically, Figure 1and Figure 2 As shown, one of the two groups of traction clamps 202 is suitable for clamping the diaphragm in a clamped state after the film is applied at the film application position 6 on the side to move to the film release position 7 on the other side, and the driving member 1 drives the opening mechanism 4 to press the traction clamp 202 to the open state, so that the traction clamp 202 releases the diaphragm. The other group of traction clamps 202 in the two groups of traction clamps 202 is suitable for moving from the film application position 6 on the side to the film release position 7 on the other side to maintain a clamped state after the film is applied, and the driving member 1 drives the opening mechanism 4 to press the traction clamp 202 to the open state to release the diaphragm. It should be noted that since the two groups of traction clamps 202 move and switch positions between the two groups of opening mechanisms 4, the "side" of one group of traction clamps 202 is the "other side" of the other group of traction clamps 202, and the "other side" of one group of traction clamps 202 is the "side" of the other group of traction clamps 202.
[0054] It should be noted that when the traction clamp 202 is located at the upper film position 6, the expansion mechanism 4 presses the traction clamp 202 to the expanded state, and the diaphragm enters the clamping area of the traction clamp 202 during the movement of the traction clamp 202. At this time, the expansion mechanism 4 releases the traction clamp 202, and the traction clamp 202 is reset to the clamping state to clamp the diaphragm, completing the film upper process.
[0055] In this diaphragm traction device, the traction mechanism 2 moves to one end close to the stacking platform 3. When one set of traction clamps 202 on the traction mechanism 2 is in a clamped state and clamps the diaphragm to the film release position 7, the driving member 1 drives the corresponding opening mechanism 4 to make the opening mechanism 4 press down the traction clamp 202 until the traction clamp 202 switches from the clamped state to the open state, so that the traction clamp 202 opens and releases the diaphragm, completing the diaphragm release action. When another set of traction clamps 202 on the traction mechanism 2 moves to the upper film position 6 in a clamped state, the driving member 1 drives the corresponding opening mechanism 4 to press down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the open state. When the diaphragm close to the end of the stacking platform 3 enters the clamping area of the traction clamp 202, the traction clamp 202 switches from the open state to the clamped state to clamp the diaphragm, completing the diaphragm clamping action.
[0056] Similarly, the traction mechanism 2 moves to the other end near the stacking platform 3. When one of the traction clamps 202 on the traction mechanism 2 is in a clamped state and clamps the diaphragm to the film release position 7, the driving member 1 drives the corresponding opening mechanism 4 to press down the traction clamp 202 until the traction clamp 202 switches from the clamped state to the open state, so that the traction clamp 202 opens and releases the diaphragm, and the diaphragm release action is completed again. When another group of traction clamps 202 on the traction mechanism 2 moves to the upper film position 6 in a clamped state, the driving member 1 drives the corresponding opening mechanism 4 to press down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the open state. When the diaphragm near the end of the stacking platform 3 enters the clamping area of the traction clamp 202, the traction clamp 202 switches from the open state to the clamped state to clamp the diaphragm, and the diaphragm clamping action is completed again.
[0057] Two groups of traction clamps 202 are arranged on the frame 201 of the traction mechanism 2, and when the traction mechanism 2 moves between the two groups of opening mechanisms 4, one group of traction clamps 202 clamps the diaphragm and pulls the diaphragm to move along the length direction of the stacking platform 3, and the other group of traction clamps 202 is in a clamping state without clamping the diaphragm. The overall structure of the traction mechanism 2 is simplified, the overall weight of the traction mechanism 2 is reduced, and it can switch between the two groups of opening mechanisms 4, thereby improving the efficiency of the whole machine.
[0058] In addition, the traction mechanism 2 and the expansion mechanism 4 are separately arranged, and the traction mechanism 2 does not need to drive the expansion mechanism 4 to move synchronously during the movement, which further reduces the weight of the traction mechanism 2, improves the flexibility of the traction mechanism 2, and thus improves the diaphragm traction efficiency. At the same time, when the traction clamp 202 reaches the specified position, the expansion mechanism 4 switches the traction clamp 202 to the specified state, completing the action of the traction clamp 202 releasing the diaphragm or clamping the diaphragm.
[0059] It should be noted that a driving mechanism can be provided, which is connected to the traction mechanism 2, and is used to drive the traction mechanism 2 to move along the length direction of the stacking platform 3. The driving mechanism can be driven by a motor or a conveyor belt. The embodiment of the utility model does not impose specific restrictions on the driving mechanism.
[0060] Specifically, the embodiment of the utility model does not impose any specific restrictions on the structure of the two groups of traction clamps 202, and only requires that the traction clamps 202 have a clamping state and an open state, and the traction clamps 202 can switch between the clamping state and the open state.
[0061] In one embodiment, if Figure 4As shown, the expansion mechanism 4 includes a pusher 401, which is arranged corresponding to the film placement position 7, and is connected to the driving member 1. The end of the pusher 401 is arranged corresponding to one of the traction clamps 202. When the traction clamp 202 moves to the pusher 401, the driving member 1 drives the pusher 401 to press down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the expanded state. By connecting the driving member 1 with the pusher 401, the driving member 1 drives the pusher 401 to move toward the traction clamp 202, so that the pusher 401 presses down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the expanded state, and the traction clamp 202 releases the diaphragm. The structure is simple, easy to operate, and the reliability and stability of the expansion mechanism 4 are improved.
[0062] It should be noted that the embodiment of the utility model does not impose any specific restrictions on the structural shape of the pusher 401. For example, the pusher 401 can be configured to be rod-shaped, one end of the pusher 401 is connected to the driving member 1, and the other end is configured to correspond to the traction clamp 202. The driving member 1 drives the rod-shaped pusher 401 to move up and down to control the traction clamp 202 to switch between the clamped state and the expanded state. Alternatively, the pusher 401 can also be configured to be a telescopic member, and the driving member 1 drives the pusher 401 to extend and retract, so that the pusher 401 controls the traction clamp 202 to switch between the clamped state and the expanded state.
[0063] Specifically, Figure 4 As shown, a fixing plate 404 can be provided on the opening mechanism 4, a driving member 1 is provided on the fixing plate 404, one end of a pushing member 401 is connected to the driving member 1, and the other end of the pushing member 401 is aligned with the traction clamp 202, and the driving member 1 drives the pushing member 401 to move toward the traction clamp 202, so that the pushing member 401 presses down the traction clamp 202. The driving member 1 can be a motor, a cylinder or a hydraulic cylinder.
[0064] Specifically, in order to ensure the contact stability between the pushing member 401 and the traction clamp 202 and prevent the pushing member 401 from slipping when pressing down the traction clamp 202, anti-slip materials such as rubber sleeves can be set at the ends of the pushing member 401 that contact the traction clamp 202. At the same time, setting a rubber sleeve at the end of the pushing member 401 can play a role in buffering and shock absorption, thereby protecting the surface of the traction clamp 202.
[0065] In one embodiment, if Figure 4 As shown, the opening mechanism 4 further includes a support rod 402, which is arranged corresponding to the upper film position 6, and is spaced apart from the pusher 401. One end of the support rod 402 is connected to the driving member 1, and the other end of the support rod 402 is provided with a roller 403, which faces the traction clamp 202.
[0066] When the traction clamp 202 moves to the support rod 402, the driving member 1 drives the support rod 402 to move toward the traction clamp 202, so that the surface of the roller 403 contacts the surface of the traction clamp 202, and the roller 403 presses down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the expanded state until the diaphragm enters the clamping area of the traction clamp 202. The driving member 1 drives the support rod 402 to move in the direction away from the traction clamp 202, so that the traction clamp 202 switches from the expanded state to the clamped state, completing the action of the traction clamp 202 clamping the diaphragm.
[0067] The driving member 1 drives the support rod 402 to move toward the traction clamp 202, so that the roller 403 on the support rod 402 contacts the surface of the traction clamp 202 until the roller 403 presses down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the expanded state. In the process of the traction clamp 202 moving toward the diaphragm, the roller 403 continues to press down the surface of the traction clamp 202, and the roller 403 rotates on the surface of the traction clamp 202, and the traction clamp 202 continues to be in the expanded state until the diaphragm enters the clamping area of the traction clamp 202. At this time, the driving member 1 drives the support rod 402 to move in the direction away from the traction clamp 202, and the roller 403 moves away from the traction clamp 202, so that the traction clamp 202 switches from the expanded state to the clamped state, completing the diaphragm clamping action. During the whole process, the traction clamp 202 is pressed down by the roller 403, and the traction clamp 202 is in contact with the roller 403 during the movement, so that the traction clamp 202 can remain in the expanded state for a period of time during the movement, so as to facilitate the diaphragm to enter the clamping area of the traction clamp 202, and, during the movement of the traction clamp 202 in the expanded state, the roller 403 rolls on the surface of the traction clamp 202, reducing the friction between the roller 403 and the traction clamp 202, ensuring that the moving speed of the traction clamp 202 is consistent, avoiding the traction clamp 202 from moving at a lower speed due to the increased friction, thereby improving the diaphragm traction efficiency of the diaphragm traction device and reducing the surface wear of the traction clamp 202.
[0068] Specifically, Figure 4 As shown, a fixing plate 404 can be provided on the opening mechanism 4, a driving member 1 is provided on the fixing plate 404, one end of a support rod 402 is connected to the driving member 1, a roller 403 is provided on the other end of the support rod 402, and the driving member 1 drives the support rod 402 to move toward the traction clamp 202, so that the roller 403 presses down the traction clamp 202. The driving member 1 can be a motor, a cylinder or a hydraulic cylinder. Two groups of driving members 1 can be provided, and the two groups of driving members 1 drive the support rod 402 and the pushing member 401 respectively.
[0069] Specifically, a plurality of rollers 403 can be provided on the support rod 402, and the plurality of rollers 403 are arranged at intervals. The plurality of rollers 403 contact the surface of the traction clamp 202, which can ensure that the force on the surface of the traction clamp 202 is balanced, so that both ends of the traction clamp 202 are in an expanded state, and avoid uneven force on the traction clamp 202, resulting in one end of the traction clamp 202 being in an expanded state and the other end being in a clamped state, or the expansion sizes of the two ends of the traction clamp 202 are not uniform.
[0070] In one embodiment, if Figure 2 and Figure 3 As shown, the two groups of traction clamps 202 are symmetrically arranged about the axis of the length direction of the frame 201. By symmetrically arranging the two groups of traction clamps 202 on the traction mechanism 2, the structural stability of the traction mechanism 2 is improved, so as to facilitate the manufacture and installation of the traction mechanism 2 and reduce the complexity of processing and assembly.
[0071] In one embodiment, if Figure 3 As shown, the traction clamp 202 includes a first clamp 2021, a second clamp 2022 and an elastic preload (not shown in the figure), wherein the first clamp 2021 is fixedly set on the frame 201, and the second clamp 2022 is rotatably set on the first clamp 2021 via a rotating shaft 2024, one end of the elastic preload abuts against the first clamp 2021, and the other end of the elastic preload abuts against the second clamp 2022. Under the action of the elastic preload, the elastic preload applies an elastic force to the second clamp 2022, so that the traction clamp 202 is in a clamped state.
[0072] By applying elastic force to the second clamp 2022 through the elastic preload, the traction clamp 202 is always in a clamped state without being affected by external forces, so that the traction clamp 202 that clamps the diaphragm can always clamp the diaphragm without being affected by external forces, ensuring that the traction mechanism 2 normally pulls the diaphragm during the movement. At the same time, by applying external force to the second clamp 2022, the second clamp 2022 rotates around the rotation axis 2024 equivalent to the first clamp 2021, so that the traction clamp 202 enters the expanded state. After the external force on the second clamp 2022 is removed, the elastic force applied to the second clamp 2022 by the elastic preload can switch the traction clamp 202 to the expanded state. This traction clamp 202 has a simple structure and improves the reliability and stability of the traction clamp 202.
[0073] It should be noted that the embodiment of the utility model does not specifically limit the type of elastic preload. For example, the elastic preload can be a torsion spring, which is arranged at the rotating shaft 2024. One end of the torsion spring applies pressure to the first clamp 2021, and the other end applies pressure to the second clamp 2022, so that the traction clamp 202 is in a clamped state without being subjected to external force. Alternatively, the elastic preload can be a spring, one end of the spring is arranged on the first clamp 2021, and the other end of the spring is arranged on the second clamp 2022. The spring applies an elastic force to the second clamp 2022 in the direction of the first clamp 2021, so that the traction clamp 202 is in a clamped state without being subjected to external force.
[0074] Specifically, the embodiment of the utility model does not impose any specific restrictions on the structure of the first clamp 2021 and the second clamp 2022. The first clamp 2021 and the second clamp 2022 can clamp the diaphragm in the clamped state and release the diaphragm in the expanded state. For example, silicone can be provided in the clamping area of the first clamp 2021 and the second clamp 2022 to increase the friction between the clamping area and the diaphragm during the process of the traction clamp 202 clamping the diaphragm and moving, thereby ensuring that the diaphragm is stably clamped on the traction clamp 202 and preventing the diaphragm from detaching from the traction clamp 202 during the movement of the traction clamp 202.
[0075] In one embodiment, if Figure 3 As shown, the contact surface of the second clip 2022 corresponding to the pushing member 401 is set as a horizontal plane 20221. By setting the contact surface between the second clip 2022 and the pushing member 401 as the horizontal plane 20221, the contact area between the pushing member 401 and the second clip 2022 is increased, ensuring that the pushing member 401 can stably push the second clip 2022, so that the traction clip 202 is switched to the expanded state.
[0076] Specifically, Figure 3 As shown, the horizontal plane 20221 can be set near the end of the second clip 2022, and according to the lever principle, the second clip 2022 can be pressed downward with a smaller force.
[0077] In one embodiment, if Figure 3As shown, the contact surface of the second clamping piece 2022 and the roller 403 is set as an inclined surface 20223. By setting the inclined surface 20223 on the second clamping piece 2022, when the second clamping piece 2022 reaches the upper film position 6, the inclined surface 20223 contacts the roller 403, and when the traction clamp 202 moves toward the roller 403, the roller 403 rolls on the inclined surface 20223, so that the traction clamp 202 is gradually subjected to downward pressure during the movement, until the traction clamp 202 switches to the open state, and the roller 403 applies downward pressure to the inclined surface 20223 in a continuous process, during which the traction clamp 202 can maintain the open state for a period of time while moving, so that the diaphragm can enter the clamping area of the traction clamp 202.
[0078] In one embodiment, if Figure 3 As shown, the first clip 2021 is integrally formed with the frame 201, and / or two groups of first clips 2021 are integrally formed. By integrally forming the first clip 2021 of the traction clamp 202 with the frame 201, the structural strength and reliability of the traction mechanism 2 are improved, and the weight of the traction mechanism 2 itself is reduced, so that the traction mechanism 2 can move quickly above the stacking platform 3.
[0079] In one embodiment, if Figure 1 As shown, the diaphragm traction device further includes a guide rail 5, which is arranged along the length direction of the stacking platform 3, and the frame 201 is movably arranged on the guide rail 5. By arranging the guide rail 5 in the length direction of the stacking platform 3, the frame 201 is movably arranged on the guide rail 5, providing a movement guide for the traction mechanism 2, thereby improving the movement smoothness and stability of the traction mechanism 2.
[0080] According to an embodiment of the present utility model, on the other hand, Figure 1 As shown, a core preparation system is also provided, including: a stacking table 3, a transport mechanism, two sets of film placing mechanisms and a diaphragm traction device.
[0081] Specifically, the transport mechanism can transport the pole pieces to the stacking platform 3 .
[0082] Specifically, two sets of film placing mechanisms are respectively arranged at two ends of the stacking platform 3 in the length direction.
[0083] Specifically, the traction mechanism 2 is movably arranged between the two sets of film placing mechanisms, and a space for the stacking platform 3 to pass through is provided on the traction mechanism 2 .
[0084] In this pole core preparation system, the pole piece is transported to the stacking platform 3 by a transport mechanism, and one group of traction clamps 202 of the traction mechanism 2 clamps the diaphragm on the film placing mechanism and moves along the length direction of the stacking platform 3 until the traction mechanism 2 moves to the other end of the stacking platform 3, and then the pole piece is transported to the diaphragm of the stacking platform 3 by a transport mechanism, and the diaphragm on the film placing mechanism is clamped by another group of traction clamps 202 of the traction mechanism 2, and the diaphragm is pulled to the other end of the stacking platform 3, and the above process is repeated until the pole core is completed. In the process of pole core preparation, the diaphragm is clamped by the traction mechanism 2 to switch between the two groups of film placing mechanisms, thereby improving the preparation efficiency of the pole core.
[0085] In one embodiment, if Figure 1 As shown, the film placing mechanism 8 is suitable for moving along the length direction of the stack 3. When the traction mechanism 2 clamps the diaphragm and moves along the length direction of the stack 3, the film placing mechanism 8 connected to the diaphragm is suitable for moving in the same direction as the traction mechanism 2, so that the film placing mechanism 8 is close to the stack 3. The film placing mechanism 8 is provided with a cutting piece, and the cutting piece is used to cut the diaphragm after the film placing is completed. When the traction mechanism 2 clamps the diaphragm and moves along the length direction of the stack 3, the film placing mechanism 8 connected to the diaphragm will also move toward the stack direction, so that the film placing mechanism 8 is close to the stack 3, reducing the distance between the film placing mechanism 8 and the edge of the stack 3. After the film placing is completed, the diaphragm is cut by the cutting piece on the film placing mechanism 8, thereby making the distance between the edge of the diaphragm and the edge of the stack 3 as small as possible to avoid wasting the diaphragm.
[0086] It should be noted that after the cutting piece cuts the diaphragm, the film placing mechanism 8 should move in a direction away from the stacking table 3 so that the traction mechanism 2 can clamp the diaphragm on the film placing mechanism 8 in the next beat.
[0087] Specifically, a driving component may be provided, the driving component being connected to the film placing mechanism 8, and the film placing mechanism 8 is driven to move by the driving component.
[0088] Specifically, the distance that the film placing mechanism 8 moves may be the width of the traction mechanism 2 , or the distance that the film placing mechanism 8 moves may be greater than the width of the traction mechanism 2 . The embodiment of the utility model does not impose any specific limitation on the distance that the film placing mechanism 8 moves.
[0089] Specifically, the cutting member may be a hot cutting wire, a blade cutting machine, a laser cutting machine, etc. The embodiment of the utility model does not specifically limit the type of the cutting member.
[0090] The working principle of the core preparation system in this embodiment is described as follows:
[0091] 1) The transport mechanism transports the pole piece to the stacking platform 3:
[0092] After the electrode pieces are cut mechanically or by laser, the cut electrode pieces are transported to the stacking platform 3 by a transport mechanism.
[0093] 2) After the pole piece is transported, the traction mechanism 2 clamps the diaphragm:
[0094] After the pole piece is transported, one set of traction clamps 202 on the traction mechanism 2 is in a clamped state and clamps the diaphragm, and moves from one end of the stacking platform 3 to the other end of the stacking platform 3 along the guide rail 5. During the movement of the traction mechanism 2, the traction mechanism 2 will drive the film placing mechanism connected to the diaphragm to move in the same direction for a distance, so that the film placing mechanism is close to the stacking platform 3, ensuring that after the hot cutting wire on the film placing mechanism cuts off the diaphragm, the distance between the edge of the diaphragm and the edge of the stacking platform 3 is as small as possible to avoid wasting the diaphragm.
[0095] 3) The traction mechanism 2 clamps the diaphragm and moves it to the other end of the stacking platform 3, then releases the diaphragm:
[0096] When the traction clamp 202 clamping the diaphragm moves to the film release position 7, the driving member 1 drives the pushing member 401 to move toward the traction clamp 202, so that the pushing member 401 presses down the traction clamp 202, so that the traction clamp 202 switches from the clamping state to the expanded state, and completes the action of the traction clamp 202 releasing the diaphragm.
[0097] It should be noted that before the traction clamp 202 releases the diaphragm, the transport mechanism transports the pole piece to the stacking table 3 again so that the pole piece covers the layer of diaphragm just pulled, and the cylinder pressure knife can be used to press the pole piece. At the moment the pole piece presses the diaphragm, the traction clamp 202 completes the action of releasing the diaphragm.
[0098] 4) The traction mechanism 2 moves to the other end of the stacking platform 3 and clamps the new diaphragm:
[0099] When the other traction clamp 202 moves to the upper film position 6, the driving member 1 drives the support rod 402 to move toward the traction clamp 202, so that the surface of the roller 403 contacts the surface of the traction clamp 202, and the roller 403 presses down the traction clamp 202, so that the traction clamp 202 switches from the clamped state to the expanded state, until the diaphragm on the film placing mechanism enters the clamping area of the traction clamp 202, and the driving member 1 drives the support rod 402 to move in the direction away from the traction clamp 202, so that the traction clamp 202 switches from the expanded state to the clamped state, completing the action of the traction clamp 202 clamping the diaphragm.
[0100] 5) After the traction mechanism 2 completes the unidirectional movement:
[0101] After the traction mechanism 2 completes the unidirectional movement, the above movement processes 1) to 4) are repeated until the pole core is completed.
[0102] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A diaphragm pulling device, characterized in that: include: A traction mechanism (2) is adapted to move along the length direction of the stacking platform (3), the traction mechanism (2) comprising a frame (201) and two sets of traction clamps (202), the two sets of traction clamps (202) being fixedly arranged on the frame (201) with their backs facing each other and being located above the stacking platform (3), and both having a clamped state and an open state; Two groups of spreading mechanisms (4) are respectively arranged at the two ends of the stacking platform (3) in the length direction, and the two groups of spreading mechanisms (4) are respectively provided with driving members (1), and the traction mechanism (2) switches between the two groups of spreading mechanisms (4), and the positions of each group of spreading mechanisms (4) corresponding to the two groups of traction clamps (202) are respectively the film loading position (6) and the film placing position (7); One group of the traction clamps (202) is suitable for maintaining the clamping state to clamp the diaphragm and move it to the film release position (7) on the other side after the film is applied at the film application position (6) on the side, and the driving member (1) drives the expansion mechanism (4) to press the traction clamps (202) down to the expanded state to release the diaphragm; the other group of the traction clamps (202) is suitable for maintaining the clamping state to move it to the film release position (7) on the other side after the film is applied at the film application position (6) on the side, and the driving member (1) drives the expansion mechanism (4) to press the traction clamps (202) down to the expanded state to release the diaphragm.
2. The diaphragm pulling device according to claim 1, characterized in that: The spreading mechanism (4) comprises a pushing member (401), the pushing member (401) being arranged corresponding to the film placing position (7), the pushing member (401) being connected to the driving member (1), the end of the pushing member (401) being arranged corresponding to one group of the traction clamps (202), and when the traction clamps (202) move to the pushing member (401), the driving member (1) drives the pushing member (401) to press down the traction clamps (202), so that the traction clamps (202) are switched from the clamping state to the spreading state.
3. The diaphragm pulling device according to claim 2, characterized in that: The spreading mechanism (4) further comprises a support rod (402), the support rod (402) being arranged corresponding to the upper film position (6), the support rod (402) being arranged at a distance from the pushing member (401), one end of the support rod (402) being connected to the driving member (1), and the other end of the support rod (402) being provided with a roller (403); When the traction clamp (202) moves to the support rod (402), the driving member (1) drives the support rod (402) to move toward the traction clamp (202), so that the surface of the roller (403) contacts the surface of the traction clamp (202), and the roller (403) presses down the traction clamp (202), so that the traction clamp (202) switches from the clamped state to the expanded state until the diaphragm enters the clamping area of the traction clamp (202), and the driving member (1) drives the support rod (402) to move in a direction away from the traction clamp (202), so that the traction clamp (202) switches from the expanded state to the clamped state.
4. The diaphragm pulling device according to claim 3, characterized in that: The two groups of traction clamps (202) are symmetrically arranged about the axis of the length direction of the frame (201).
5. The diaphragm pulling device according to claim 3 or 4, characterized in that: The traction clamp (202) comprises a first clamp (2021), a second clamp (2022) and an elastic pre-tightening member, wherein the first clamp (2021) is fixedly mounted on the frame (201), and the second clamp (2022) is rotatably mounted on the first clamp (2021) via a rotating shaft (2024); one end of the elastic pre-tightening member abuts against the first clamp (2021), and the other end abuts against the second clamp (2022); the elastic pre-tightening member applies an elastic force to the second clamp (2022), so that the traction clamp (202) is in the clamped state.
6. The diaphragm pulling device according to claim 5, characterized in that: The contact surface of the second clamping piece (2022) corresponding to the pushing member (401) is set as a horizontal surface (20221).
7. The diaphragm pulling device according to claim 6, characterized in that: The contact surface between the second clamping piece (2022) and the roller (403) is configured as an inclined surface (20223).
8. The diaphragm pulling device according to claim 5, characterized in that: The first clip (2021) and the frame (201) are integrally formed, and / or two groups of the first clips (2021) are integrally formed.
9. The diaphragm pulling device according to any one of claims 1 to 4, characterized in that: It also comprises a guide rail (5), wherein the guide rail (5) is arranged along the length direction of the stacking platform (3), and the frame (201) is movably arranged on the guide rail (5).
10. A core preparation system, characterized in that: include: Stacking (3); A transport mechanism, suitable for transporting the pole piece to the stacking platform (3); Two sets of film placing mechanisms (8) are respectively arranged at two ends of the stacking platform (3) in the length direction; The diaphragm traction device according to any one of claims 1 to 9, wherein the traction mechanism (2) is movably arranged between the two groups of the film placing mechanisms (8) and is provided with a space for the stacking platform (3) to pass through.
11. The core preparation system according to claim 10, characterized in that: When the traction mechanism (2) clamps the diaphragm and moves along the length direction of the stacking platform (3), the film-releasing mechanism (8) connected to the diaphragm is suitable for moving in the same direction as the traction mechanism (2) so that the film-releasing mechanism (8) is close to the stacking platform (3). A cutting piece is provided on the film-releasing mechanism (8), and the cutting piece is used to cut the diaphragm after the film-releasing is completed.