CN216736786U - Electricity core diaphragm buffer memory mechanism - Google Patents
Electricity core diaphragm buffer memory mechanism Download PDFInfo
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- CN216736786U CN216736786U CN202220001613.7U CN202220001613U CN216736786U CN 216736786 U CN216736786 U CN 216736786U CN 202220001613 U CN202220001613 U CN 202220001613U CN 216736786 U CN216736786 U CN 216736786U
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Abstract
The utility model discloses a cell diaphragm cache mechanism which comprises two cache driving wheels, two cache driven wheels and two rollers, wherein the two cache driving wheels are arranged on a walking support at intervals along the vertical direction, and the walking support drives the two cache driving wheels to linearly move left and right along the horizontal direction; the buffer driven wheel is fixedly arranged and is arranged at one side of the buffer driving wheel at intervals; the double rollers are arranged below the cache driving wheel; when the diaphragm is cached, the diaphragm is pressed tightly by the double rollers, and the two caching driving wheels pull the diaphragm to move towards the right side in a straight line; when the diaphragm is released, the double rollers loosen the diaphragm, and the two buffer driving wheels move towards the left side to be close to the buffer driven wheel. The utility model realizes the buffer storage and release of the diaphragm by using a fixed single pivot and a movable double-action point structure and utilizing the adjustment of the distance between the double buffer driving wheels and the buffer driven wheels to ensure that the diaphragm is always kept in a tension state, thereby effectively ensuring the surface quality of the subsequent film coating.
Description
Technical Field
The utility model relates to the field of automation equipment, in particular to a cell diaphragm caching mechanism.
Background
Lithium battery refers to a battery containing Lithium including metallic Lithium, Lithium alloy and Lithium ion, Lithium polymer in electrochemical system. Lithium batteries can be broadly classified into two types: lithium metal batteries and lithium ion batteries. A lithium battery is a type of rechargeable battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During the charge and discharge process, lithium ions are intercalated and deintercalated between the two electrodes: when the battery is charged, lithium ions are extracted from the positive electrode and are inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Batteries using a material containing lithium as an electrode are typical of modern high-performance batteries.
The electric core of the lithium ion battery is generally formed by overlapping positive and negative pole pieces in a staggered manner, and the positive and negative pole pieces of a single chip are firstly manufactured in the manufacturing process of the electric core. And then, overlapping the positive and negative pole pieces on the lamination platform in a staggered manner to form the battery core, wherein a diaphragm with an insulating and isolating function is required to be inserted between the positive and negative pole pieces in the staggered lamination process of the positive and negative pole pieces. In the actual lamination process of the pole piece lamination, a layer of pole piece is generally laminated on a lamination platform, then a diaphragm is covered on the pole piece, and the lamination is continuously and alternately circulated until the lamination of the battery cell is completed. The diaphragm incoming material state is generally a belt-shaped structure, and the diaphragm of the belt-shaped structure needs to be covered on a pole piece placed on a lamination platform back and forth after being pulled out from a material roll to complete film covering.
In the film laminating process of the battery core diaphragm, after the outer end of the diaphragm is clamped by the film laminating device, the diaphragm is pulled out from a material roll and is covered on a pole piece placed on a lamination platform back and forth. In the membrane laminating process, the surface quality of the membrane after membrane laminating can hardly meet the requirement of a battery core manufacturing process due to the change of the internal tension of the membrane. The main factors influencing the tension of the membrane are that in the prior art, the membrane is directly pulled out of the material roll by the membrane covering device, the membrane is discharged by the material roll in a rotating way, and the material discharging speed of the material roll and the membrane pulling speed of the membrane covering device cannot be kept completely consistent in real time and continuously in the actual lamination process; if the material feeding speed of the material roll is too high, the diaphragm belt between the material roll and the film covering device is in a loose state, and the flexible diaphragm belt is easy to have surface wrinkles or upwarp and the like; if the film drawing speed of the film coating device is greater than the material rolling and discharging speed, the membrane is excessively tensioned and stretched, and the internal material of the flexible membrane is unevenly distributed. Therefore, a set of diaphragm buffering device needs to be designed between the material roll and the film covering device for solving the technical problems, the diaphragm buffering device is used for always keeping the diaphragm in a tensioning and spreading state in the actual production process, and the tensioning force of the diaphragm is always kept unchanged, so that the film covering quality is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of the prior art, and provides a cell diaphragm buffering mechanism which uses a fixed single pivot point and a movable double-acting point structure, realizes diaphragm buffering and releasing on the premise of keeping a diaphragm in a tensioning state all the time by adjusting the distance between a double-buffering driving wheel and a buffering driven wheel, and effectively ensures the surface quality of subsequent coating.
The technical scheme adopted by the utility model is as follows: a cell diaphragm caching mechanism comprises two caching driving wheels, two caching driven wheels and double idler wheels, wherein the two caching driving wheels are arranged on a walking support at intervals in the vertical direction, and the walking support drives the two caching driving wheels to linearly move left and right in a reciprocating manner in the horizontal direction; the buffer driven wheel is fixedly arranged and is arranged at one side of the buffer driving wheel at intervals, and the diaphragm sequentially passes through the buffer driving wheel, the buffer driven wheel and the other buffer driving wheel and is tensioned; the double rollers are arranged below the buffer driving wheel, and the diaphragm penetrates between the double rollers from top to bottom and vertically extends downwards; when the diaphragm is cached, the diaphragm is pressed by the double rollers, the two caching driving wheels pull the diaphragm to move towards the right straight line, and the diaphragm above the diaphragm is pulled out and stored between the caching driving wheels and the caching driven wheels; when the diaphragm is released, the diaphragm is loosened by the double rollers, the two buffer driving wheels move towards the left side close to the buffer driven wheel, and the diaphragm between the buffer driving wheels and the buffer driven wheel is released towards the lower part of the double rollers so as to be covered on the lamination platform below back and forth.
Preferably, the double rollers comprise a passive pressing wheel and an active pressing wheel, wherein the passive pressing wheel is fixedly arranged; the active pinch rollers are arranged on one sides of the passive pinch rollers at intervals, and the diaphragm penetrates downwards from a gap between the passive pinch rollers and the active pinch rollers; and the active pinch roller moves linearly in the left-right direction so as to press or loosen the diaphragm.
Preferably, a first tension wheel and a second tension wheel are respectively arranged above and below the buffer driving wheel, and the diaphragm reversely bypasses the buffer driving wheel above after passing through the first tension wheel; the diaphragm reversely bypasses the second tensioning wheel after being wound out from the buffer driving wheel below.
Preferably, a feeding wheel is arranged above the first tensioning wheel, and the membrane discharged from the material roll passes through the feeding wheel and then bypasses the first tensioning wheel.
The utility model has the beneficial effects that:
aiming at the defects and shortcomings in the prior art, the utility model independently develops and designs the electric core diaphragm buffer mechanism which uses a fixed single pivot and a movable double-action-point structure, realizes the buffer storage and release of the diaphragm on the premise of keeping the diaphragm in a tensioning state all the time by utilizing the adjustment of the distance between a double-buffer driving wheel and a buffer driven wheel, and effectively ensures the surface quality of the subsequent coating. The diaphragm section part is arranged between a diaphragm material roll and a film covering device and has the functions that a diaphragm buffer section is formed between the material discharging and the film drawing, and after the diaphragm discharged from the material roll is buffered through the diaphragm buffer section, the film is discharged from a film covering mechanism and then the film is drawn out.
The buffer driven wheel is used as a fulcrum, the buffer driving wheels symmetrically arranged at the upper side and the lower side of the buffer driven wheel are used as buffer executing parts, and a diaphragm alternately passes through the upper buffer driving wheel, the buffer driven wheel and the lower buffer driving wheel, so that the buffer driven wheel, the buffer driving wheels and the diaphragm are kept in a tensioning state; the two buffer driving wheels are respectively arranged at the upper part and the lower part of the side wall of the walking support; meanwhile, the walking support is connected to the sliding seat, the sliding seat is driven to linearly move along the horizontal direction through the linear module, the sliding seat drives the walking support to linearly move, the walking support drives two buffer driving wheels to linearly move synchronously, when the buffer driving wheels move towards the direction far away from the buffer driven wheels, the distance between the buffer driving wheels and the buffer driven wheels is pulled open, the diaphragm belt is cached between the buffer driving wheels and the buffer driven wheels, when the buffer driving wheels move towards the direction close to the buffer driven wheels, the distance between the buffer driving wheels and the buffer driven wheels is reduced, the diaphragm belt cached between the buffer driving wheels and the buffer driven wheels is in a gradual regional loose state, and the diaphragm belt is pulled out by a film covering device at the rear section so as to carry out film covering action. In addition, when the buffer storage driving wheel buffers the diaphragm, the double rollers compress and fix the diaphragm at the rear section to pull out the face diaphragm from the rear section, so that the diaphragm buffer storage assembly is ensured to pull out the diaphragm only from the pull belt assembly at the front end, and when the diaphragm buffer storage assembly releases the diaphragm, the double rollers loosen the diaphragm, so that the diaphragm which tends to be loose in the diaphragm buffer storage assembly is tensioned and pulled out by the film laminating device to be laminated.
In addition, the utility model is also provided with a double-roller structure for assisting the buffer storage of the diaphragm, the double-roller structure mainly comprises a passive pressing roller and an active pressing roller which are arranged at intervals, and the diaphragm vertically passes through a gap space between the passive pressing roller and the active pressing roller and is clamped by a film covering device below the diaphragm; wherein passive pinch roller is fixed to be set up, and initiative pinch roller sets up along horizontal direction slidable through pressing the area support, presses the area support to drive through pressing the area cylinder drive and drives initiative pinch roller and be close to or keep away from passive pinch roller to compress tightly or loosen the diaphragm.
The diaphragm is always kept in a tensioning state by the back-and-forth linear buffer release of the diaphragm through the diaphragm buffer assembly and the automatic belt pressing and conveying of the double rollers, so that the situations of inconsistent surface flatness or folds, bends and the like caused by the looseness of the diaphragm are effectively avoided; in addition, through the design of the diaphragm buffer component, the buffer driven wheel and the buffer driving wheel of the single fulcrum and the double acting point are converted into buffer and release of the diaphragm by utilizing the change of the distance between the double acting point and the single fulcrum, and the buffer of the diaphragm is realized through the cooperative matching of the double-roller pressing belts, so that the consistency of the tension of each part of the diaphragm is effectively ensured, and the technical problem that the tension of the diaphragm cannot be effectively controlled in the film laminating process in the prior art is well solved.
Drawings
FIG. 1 is a diagram illustrating a diaphragm buffer status according to the present invention.
FIG. 2 is a schematic view of the buffer according to the present invention showing the membrane released state.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 2, the technical solution adopted by the present invention is as follows: a cell diaphragm cache mechanism comprises cache driving wheels 4, cache driven wheels 3 and double idler wheels, wherein the cache driving wheels 4 comprise two cache driving wheels, the two cache driving wheels 4 are arranged on a walking support at intervals along the vertical direction, and the walking support drives the two cache driving wheels 4 to do linear motion back and forth along the horizontal direction; the buffer driven wheel 3 is fixedly arranged and arranged at one side of the buffer driving wheel 4 at intervals, and the diaphragm 0 sequentially passes through the buffer driving wheel 4, the buffer driven wheel 3 and the other buffer driving wheel 4 and is tensioned; the double rollers are arranged below the buffer driving wheel 4, and the diaphragm 0 penetrates between the double rollers from top to bottom and vertically extends downwards; when the diaphragm is cached, the diaphragm 0 is pressed by the double rollers, the two caching driving wheels 4 pull the diaphragm 0 to walk to the right side in a straight line, and the diaphragm 0 above is pulled out and stored between the caching driving wheels 4 and the caching driven wheel 3; when the diaphragm is released, the diaphragm 0 is loosened by the double rollers, the two buffer driving wheels 4 move towards the left side close to the buffer driven wheel 3, and the diaphragm 0 between the buffer driving wheels 4 and the buffer driven wheel 3 is released towards the lower part of the double rollers so as to be covered on a lamination platform at the lower part back and forth.
The double rollers comprise a driven pinch roller 6 and an active pinch roller 7, wherein the driven pinch roller 6 is fixedly arranged; the active pinch rollers 7 are arranged at one side of the passive pinch roller 6 at intervals, and the diaphragm 0 penetrates downwards from a gap between the passive pinch roller 6 and the active pinch roller 7; and the active pressing wheel 7 linearly moves in the left-right direction so as to press or release the diaphragm 0.
A first tension wheel 2 and a second tension wheel 5 are respectively arranged above and below the buffer driving wheel 4, and the diaphragm 0 passes through the first tension wheel 2 and then reversely bypasses the buffer driving wheel 4 above; the diaphragm 0 winds out from the lower buffer driving wheel 4 and reversely bypasses the second tension wheel 5.
A feeding wheel 1 is arranged above the first tensioning wheel 2, and the membrane discharged from the material roll passes through the feeding wheel 1 and then bypasses the first tensioning wheel 2.
Furthermore, the utility model designs a double-acting-point structure with fixed single pivot and movable, realizes the buffer storage and release of the diaphragm on the premise of keeping the diaphragm in a tension state all the time by utilizing the adjustment of the distance between the double buffer storage driving wheels and the buffer storage driven wheels, and effectively ensures the surface quality of the subsequent coating. The utility model provides a diaphragm section part arranged between a diaphragm material roll and a film covering device, which has the function that a diaphragm buffer section is formed between the material discharging and the film drawing, and after the diaphragm discharged from the material roll is buffered by the diaphragm buffer section, the film covering mechanism is discharged to draw out the film covering. The buffer driven wheel is used as a fulcrum, the buffer driving wheels symmetrically arranged at the upper side and the lower side of the buffer driven wheel are used as buffer executing parts, and a diaphragm alternately passes through the upper buffer driving wheel, the buffer driven wheel and the lower buffer driving wheel, so that the buffer driven wheel, the buffer driving wheels and the diaphragm are kept in a tensioning state; the two buffer driving wheels respectively walk on the upper part and the lower part of the side wall of the support; meanwhile, the walking support is connected to the sliding seat, the sliding seat is driven to linearly move along the horizontal direction through the linear module, the sliding seat drives the walking support to linearly move, the walking support drives two buffer driving wheels to linearly move synchronously, when the buffer driving wheels move towards the direction far away from the buffer driven wheels, the distance between the buffer driving wheels and the buffer driven wheels is pulled open, the diaphragm belt is cached between the buffer driving wheels and the buffer driven wheels, when the buffer driving wheels move towards the direction close to the buffer driven wheels, the distance between the buffer driving wheels and the buffer driven wheels is reduced, the diaphragm belt cached between the buffer driving wheels and the buffer driven wheels is in a gradual regional loose state, and the diaphragm belt is pulled out by a film covering device at the rear section so as to carry out film covering action. In addition, when the buffer storage driving wheel buffers the diaphragm, the double rollers compress and fix the diaphragm at the rear section to pull out the face diaphragm from the rear section, so that the diaphragm buffer storage assembly is ensured to pull out the diaphragm only from the pull belt assembly at the front end, and when the diaphragm buffer storage assembly releases the diaphragm, the double rollers loosen the diaphragm, so that the diaphragm which tends to be loose in the diaphragm buffer storage assembly is tensioned and pulled out by the film laminating device to be laminated. In addition, the utility model is also provided with a double-roller structure for assisting the buffer storage of the diaphragm, the double-roller structure mainly comprises a passive pressing roller and an active pressing roller which are arranged at intervals, and the diaphragm vertically passes through a gap space between the passive pressing roller and the active pressing roller and is clamped by a film covering device below the diaphragm; wherein passive pinch roller is fixed to be set up, and initiative pinch roller sets up along horizontal direction slidable through pressing the area support, presses the area support to drive initiative pinch roller and is close to or keep away from passive pinch roller through pressing the area cylinder drive to compress tightly or loosen the diaphragm. The diaphragm is always kept in a tensioning state by linearly caching and releasing the diaphragm back and forth through the diaphragm caching component and matching with the double-roller automatic belt pressing and conveying belt, so that the situations of inconsistent surface flatness, wrinkles, bending and the like caused by the looseness of the diaphragm are effectively avoided; in addition, through the design of the diaphragm buffer component, the buffer driven wheel and the buffer driving wheel of the single fulcrum and the double acting point are converted into buffer and release of the diaphragm by utilizing the change of the distance between the double acting point and the single fulcrum, and the buffer of the diaphragm is realized through the cooperative matching of the double-roller pressing belts, so that the consistency of the tension of each part of the diaphragm is effectively ensured, and the technical problem that the tension of the diaphragm cannot be effectively controlled in the film laminating process in the prior art is well solved.
The embodiments of the present invention are merely illustrative of specific embodiments thereof, and are not intended to limit the scope thereof. Since the present invention can be modified by a person skilled in the art, the present invention is not limited to the embodiments described above.
Claims (4)
1. The utility model provides an electricity core diaphragm buffer memory mechanism which characterized in that: the buffer device comprises two buffer driving wheels (4), two buffer driven wheels (3) and double idler wheels, wherein the two buffer driving wheels (4) are arranged on a walking support at intervals along the vertical direction, and the walking support drives the two buffer driving wheels (4) to do linear motion left and right along the horizontal direction; the buffer driven wheel (3) is fixedly arranged and is arranged at one side of the buffer driving wheel (4) at intervals, and the diaphragm (0) sequentially passes through the buffer driving wheel (4), the buffer driven wheel (3) and the other buffer driving wheel (4) and is tensioned; the double rollers are arranged below the buffer driving wheel (4), and the diaphragm (0) penetrates between the double rollers from top to bottom and vertically extends downwards; when the diaphragm is cached, the diaphragm (0) is pressed by the double rollers, the two caching driving wheels (4) pull the diaphragm (0) to linearly walk to the right side, and the diaphragm (0) above is pulled out and stored between the caching driving wheels (4) and the caching driven wheel (3); when the diaphragm is released, the diaphragm (0) is loosened by the double rollers, the two buffer driving wheels (4) move towards the left side close to the buffer driven wheel (3), and the diaphragm (0) between the buffer driving wheels (4) and the buffer driven wheel (3) is released towards the lower part of the double rollers so as to be covered on a lamination platform below the buffer driving wheels back and forth.
2. The cell membrane cache mechanism of claim 1, wherein: the double rollers comprise a driven pinch roller (6) and an active pinch roller (7), wherein the driven pinch roller (6) is fixedly arranged; the active pinch rollers (7) are arranged on one side of the passive pinch roller (6) at intervals, and the diaphragm (0) penetrates downwards from a gap between the passive pinch roller (6) and the active pinch roller (7); and the active pinch roller (7) moves linearly along the left and right directions so as to press or loosen the diaphragm (0).
3. The cell membrane cache mechanism of claim 1, wherein: a first tension wheel (2) and a second tension wheel (5) are respectively arranged above and below the buffer driving wheel (4), and the diaphragm (0) reversely bypasses the buffer driving wheel (4) above after passing through the first tension wheel (2); the diaphragm (0) winds out from the buffer driving wheel (4) below and reversely winds around the second tensioning wheel (5).
4. The cell membrane cache mechanism of claim 3, wherein: a feeding wheel (1) is arranged above the first tension wheel (2), and the membrane discharged from the material roll passes through the feeding wheel (1) and then bypasses the first tension wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220001613.7U CN216736786U (en) | 2022-01-04 | 2022-01-04 | Electricity core diaphragm buffer memory mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220001613.7U CN216736786U (en) | 2022-01-04 | 2022-01-04 | Electricity core diaphragm buffer memory mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216736786U true CN216736786U (en) | 2022-06-14 |
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ID=81911704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220001613.7U Active CN216736786U (en) | 2022-01-04 | 2022-01-04 | Electricity core diaphragm buffer memory mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216736786U (en) |
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2022
- 2022-01-04 CN CN202220001613.7U patent/CN216736786U/en active Active
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