Lithium battery diaphragm layering machine

Abstract

The lithium battery diaphragm layering machine comprises a bottom plate and a fixing block, a supporting plate is arranged at the top of the bottom plate, the supporting plate is fixedly connected with the bottom plate, a layering assembly is arranged on the supporting plate, a limiting roller is rotationally connected to the supporting plate through a rotating shaft, a first motor is connected to the inner side of the fixing block in a sleeved mode, and a second motor is arranged on the inner side of the fixing block. A graduated scale is arranged on the outer side of the supporting plate and fixedly connected with the supporting plate, a second motor drives a first threaded shaft to rotate, the first threaded shaft drives a second threaded shaft to rotate through a connecting shaft, and the first threaded shaft and the second threaded shaft drive threaded blocks to move correspondingly. The threaded block drives the upper winding roller and the lower winding roller to move through the fixing block, and the distance between the upper winding roller and the lower winding roller can be adjusted, so that the distance between the upper winding roller and the lower winding roller can be adjusted according to use requirements in the use process, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a lithium battery diaphragm layering machine. Background Art

[0002] In the structure of lithium batteries, the diaphragm is one of the key inner components. The performance of the diaphragm determines the interface structure and internal resistance of the battery, directly affecting the battery's capacity, cycle and safety performance. Excellent performance diaphragms play an important role in improving the overall performance of the battery. The diaphragm is made of plastic film, which can isolate the positive and negative electrodes of the battery to prevent short circuits; it can also block the current conduction in the battery through the closed-cell function when the battery is overheated. At present, the micropore size and distribution of domestically produced battery diaphragms are relatively uneven, and the stability is poor. In order to achieve more uniform micropores, the usual practice is to compound multiple layers of diaphragms to obtain thicker battery diaphragms, which can meet the basic requirements of battery diaphragm technology and meet the production needs of mid- and low-end batteries. The lithium battery diaphragm is compounded to obtain a multi-layer battery diaphragm, but due to the thickness requirements of the diaphragm, the diaphragm needs to be layered again.

[0003] According to CN 206546849 U, a novel lithium battery diaphragm layering machine is disclosed, which includes an unwinding device, a layering device, an upper winding device, a lower winding device and a plurality of driving rollers. The layering device divides the diaphragm into an upper and lower layer. The upper winding device and the lower winding device respectively wind up the layered diaphragm. A pressing roller is installed in the layering device to prevent the diaphragm from wrinkling. A convex strip is arranged on the outer peripheral side of the pressing roller. The convex strip spirally rises or descends around the central axis of the pressing roller. Each convex strip is equidistantly provided with protrusions. The protrusions cover the outer peripheral side surface of the pressing roller. Staggered spiral grooves are formed between adjacent protrusions. The protrusions on the spiral convex strips are in frictional contact with the diaphragm. The diaphragm part can be embedded in the spiral spiral groove. Under the interaction of the protrusions and the spiral groove, the diaphragm is straightened outward without wrinkles. The arrangement design of the spiral convex strips and the spiral grooves can effectively remove the bubbles remaining in the diaphragm, ensure normal winding, and speed up the production speed.

[0004] However, there are some problems when using this equipment. When in use, this equipment uses an upper winding roller and a lower winding roller to wind up the layered battery separator, but the spacing between the upper winding roller and the lower winding roller is fixed, and cannot be adjusted according to usage requirements during use, which is inconvenient to use. For the problems in related technologies, no effective solution has been proposed yet. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a lithium battery separator layering machine to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A lithium battery separator layering machine, comprising a bottom plate and a fixed block, a support plate is provided on the top of the bottom plate, the support plate is fixedly connected to the bottom plate, a layering assembly is provided on the support plate, a limited roller is rotatably connected to the support plate via a rotating shaft, and a first motor is sleeved on the inner side of the fixed block;

[0008] A scale is provided on the outer side of the support plate, and the scale is fixedly connected to the support plate. A second motor is fixedly connected to the inner side of the support plate. A first threaded shaft is fixedly connected to the end of the main shaft of the second motor. A connecting shaft is fixedly connected to the other end of the first threaded shaft. A second threaded shaft is fixedly connected to the other end of the connecting shaft. Threaded blocks are spirally connected to the outer sides of the first threaded shaft and the second threaded shaft.

[0009] As a further solution of the utility model, an upper winding roller is fixedly connected to the end of the main shaft of the first motor located at the top, and a lower winding roller is fixedly connected to the end of the main shaft of the first motor located at the bottom.

[0010] As a further solution of the present invention, the thread direction of the first threaded shaft is opposite to the thread direction of the second threaded shaft, and the first threaded shaft and the second threaded shaft are symmetrically arranged.

[0011] As a further solution of the utility model, the threaded block passes through the support plate, the threaded block is slidably connected to the support plate, and the threaded block is fixedly connected to the fixed block.

[0012] As a further solution of the utility model, a pointer is provided on the outer side of the threaded block, the pointer is fixedly connected to the threaded block, and the pointer is slidably connected to the scale.

[0013] As a further solution of the utility model, the pointer passes through the support plate, and the pointer is slidably connected to the support plate.

[0014] As a further solution of the utility model, a controller is provided on the outer side of the support plate, and the controller is fixedly connected to the support plate.

[0015] The beneficial effects of the utility model are:

[0016] 1. By setting the second motor, the first threaded shaft, the connecting shaft, the second threaded shaft and the threaded block, when the spacing between the upper winding roller and the lower winding roller needs to be adjusted according to the use requirements during use, the second motor is controlled to rotate by the controller, the second motor drives the first threaded shaft to rotate, the first threaded shaft drives the second threaded shaft to rotate through the connecting shaft, the first threaded shaft and the second threaded shaft respectively drive the threaded block to move, and the threaded block drives the upper winding roller and the lower winding roller to move respectively through the fixed block, so that the spacing between the upper winding roller and the lower winding roller can be adjusted according to the use requirements during use, which is convenient to use;

[0017] 2. Through the provided scale, thread block and pointer, the first threaded shaft will drive the pointer to slide on the scale when in use. By observing the scale on which the pointer slides on the scale, the spacing between the upper winding roller and the lower winding roller can be accurately adjusted, so that the spacing between the upper winding roller and the lower winding roller can be accurately adjusted according to the use requirements during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of a lithium battery separator layering machine according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the installation structure of a connecting shaft of a lithium battery diaphragm layering machine according to an embodiment of the utility model;

[0021] Figure 3 A lithium battery separator laminating machine according to an embodiment of the utility model Figure 2 A schematic diagram of the structure at A;

[0022] Figure 4 A lithium battery separator laminating machine according to an embodiment of the utility model Figure 2 Schematic diagram of the structure at point B.

[0023] In the figure: 1. bottom plate; 2. support plate; 3. layered assembly; 4. limit roller; 5. fixed block; 6. first motor; 7. upper winding roller; 8. lower winding roller; 9. scale; 10. second motor; 11. first threaded shaft; 12. connecting shaft; 13. second threaded shaft; 14. threaded block; 15. pointer; 16. controller. DETAILED DESCRIPTION

[0024] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0025] According to an embodiment of the utility model, a lithium battery separator layering machine is provided.

[0026] Please refer to the instruction manual Figure 1-4 According to an embodiment of the utility model, a lithium battery diaphragm layering machine includes a bottom plate 1 and a fixed block 5. A support plate 2 is provided on the top of the bottom plate 1, and the support plate 2 is fixedly connected to the bottom plate 1. A layering component 3 is provided on the support plate 2. A limiting roller 4 is rotatably connected to the support plate 2 through a rotating shaft. A first motor 6 is sleeved on the inner side of the fixed block 5, and a scale 9 is provided on the outer side of the support plate 2. The scale 9 is fixedly connected to the support plate 2, and a second motor 10 is fixedly connected to the inner side of the support plate 2. The end of the main shaft of the second motor 10 is fixedly connected to a first threaded shaft 11. This arrangement is convenient for driving the first threaded shaft 11 to rotate. The other end of the first threaded shaft 11 is fixedly connected to a connecting shaft 12, and the other end of the connecting shaft 12 is fixedly connected to a second threaded shaft 13. The outer sides of the first threaded shaft 11 and the outer sides of the second threaded shaft 13 are both spirally connected with threaded blocks 14.

[0027] In one embodiment, please refer to the attached specification Figure 1 and 2 As a further solution of the utility model, the end of the main shaft of the first motor 6 located at the top is fixedly connected to the upper winding roller 7, and the end of the main shaft of the first motor 6 located at the bottom is fixedly connected to the lower winding roller 8. This arrangement can drive the upper winding roller 7 and the lower winding roller 8 to rotate.

[0028] In one embodiment, please refer to the attached specification Figure 2 As a further solution of the utility model, the thread direction of the first threaded shaft 11 is opposite to the thread direction of the second threaded shaft 13, and the first threaded shaft 11 and the second threaded shaft 13 are symmetrically arranged, the threaded block 14 passes through the support plate 2, the threaded block 14 is slidably connected to the support plate 2, and the threaded block 14 is fixedly connected to the fixed block 5. This arrangement can enable the upper and lower fixed blocks 5 to move in opposite directions.

[0029] In one embodiment, please refer to the attached specification Figure 2 and 4As a further solution of the utility model, a pointer 15 is provided on the outside of the threaded block 14, the pointer 15 is fixedly connected to the threaded block 14, the pointer 15 passes through the support plate 2, the pointer 15 is slidably connected to the support plate 2, and the pointer 15 is slidably connected to the scale 9. This arrangement can accurately adjust the distance between the upper winding roller 7 and the lower winding roller 8.

[0030] In one embodiment, please refer to the attached specification Figure 1 As a further solution of the utility model, a controller 16 is provided on the outer side of the support plate 2, and the controller 16 is fixedly connected to the support plate 2. This arrangement facilitates the control of the rotation of the first motor 6 and the second motor 10.

[0031] When in use, the power supply of all electrical appliances in the device is an external power supply. During use, the lithium battery diaphragm is layered after passing through the layering component 3 and is respectively wound on the upper winding roller 7 and the lower winding roller 8 through the limiting roller 4, and then the first motor 6 is controlled to rotate through the controller 16, and the first motor 6 drives the upper winding roller 7 and the lower winding roller 8 to rotate to reel the layered lithium battery diaphragm. During use, when the distance between the upper winding roller 7 and the lower winding roller 8 needs to be adjusted according to the use requirements, the second motor 10 is controlled to rotate through the controller 16, and the second motor 10 drives the first threaded shaft 11 to rotate, and the first threaded shaft 11 is connected to the shaft 1 2 drives the second threaded shaft 13 to rotate, the first threaded shaft 11 and the second threaded shaft 13 respectively drive the threaded block 14 to move, and the threaded block 14 drives the upper winding roller 7 and the lower winding roller 8 to move respectively through the fixed block 5, so that the distance between the upper winding roller 7 and the lower winding roller 8 can be adjusted, so that the distance between the upper winding roller 7 and the lower winding roller 8 can be adjusted according to the use requirements during use, which is convenient to use. During use, the first threaded shaft 11 will drive the pointer 15 to slide on the scale 9 when it moves, and the distance between the upper winding roller 7 and the lower winding roller 8 can be accurately adjusted by observing the scale of the pointer 15 sliding on the scale 9.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lithium battery separator layering machine, comprising a bottom plate (1) and a fixing block (5), characterized in that: A support plate (2) is provided on the top of the bottom plate (1), the support plate (2) is fixedly connected to the bottom plate (1), a layered component (3) is provided on the support plate (2), a limiting roller (4) is rotatably connected to the support plate (2) via a rotating shaft, and a first motor (6) is sleeved on the inner side of the fixed block (5); A scale (9) is provided on the outside of the support plate (2), and the scale (9) is fixedly connected to the support plate (2); a second motor (10) is fixedly connected to the inside of the support plate (2); a first threaded shaft (11) is fixedly connected to the end of the main shaft of the second motor (10); the other end of the first threaded shaft (11) is fixedly connected to a connecting shaft (12); the other end of the connecting shaft (12) is fixedly connected to a second threaded shaft (13); and a threaded block (14) is spirally connected to the outside of the first threaded shaft (11) and the outside of the second threaded shaft (13).

2. A lithium battery separator laminating machine according to claim 1, characterized in that: An upper winding roller (7) is fixedly connected to the end of the main shaft of the first motor (6) located at the top, and a lower winding roller (8) is fixedly connected to the end of the main shaft of the first motor (6) located at the bottom.

3. A lithium battery separator laminating machine according to claim 1, characterized in that: The thread direction of the first threaded shaft (11) is opposite to the thread direction of the second threaded shaft (13), and the first threaded shaft (11) and the second threaded shaft (13) are symmetrically arranged.

4. A lithium battery separator laminating machine according to claim 1, characterized in that: The threaded block (14) passes through the support plate (2), the threaded block (14) is slidably connected to the support plate (2), and the threaded block (14) is fixedly connected to the fixing block (5).

5. A lithium battery separator laminating machine according to claim 1, characterized in that: A pointer (15) is provided on the outside of the threaded block (14); the pointer (15) is fixedly connected to the threaded block (14); and the pointer (15) is slidably connected to the scale (9).

6. A lithium battery separator laminating machine according to claim 5, characterized in that: The pointer (15) passes through the support plate (2), and the pointer (15) is slidably connected to the support plate (2).

7. A lithium battery separator laminating machine according to claim 1, characterized in that: A controller (16) is provided on the outside of the support plate (2), and the controller (16) is fixedly connected to the support plate (2).

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