Diaphragm splitting machine

Abstract

The utility model relates to the technical field of batteries, in particular to a diaphragm splitting machine which comprises a base, a supporting frame is fixedly arranged on the base, and the supporting frame extends in the first direction. The positioning assemblies are arranged on the supporting frame in a spaced mode in the first direction, each positioning assembly comprises a lifting pressing assembly and a fixing roller which are oppositely arranged, and the lifting pressing assemblies can ascend and descend in the second direction relative to the supporting frame so as to be matched with the fixing rollers to press or release a diaphragm; and the cutting assemblies are arranged on the supporting frame and located between every two adjacent positioning assemblies, and the cutting assemblies can descend in the second direction to make contact with the diaphragms so as to cut the diaphragms. According to the utility model, diaphragm dragging in the cutting process can be prevented, and the cutting effect is ensured.

Description

Technical Field

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

[0002] New energy refers to new forms of energy beyond traditional fossil fuels, with lithium batteries being the most common. The separator is a key internal component of a lithium battery. Its performance determines the battery's interface structure and internal resistance, directly impacting its capacity, cycle life, and safety. Lithium battery separator production requires the use of cutting equipment to ensure slitting according to design requirements.

[0003] In the existing technology, although the lithium battery diaphragm can be positioned before cutting, in actual application, the cutting tool will exert pressure on the diaphragm during cutting, which can easily cause the diaphragm to be pulled, resulting in diaphragm damage and uneven cuts, thereby affecting the performance of the diaphragm and the overall quality of the battery.

[0004] Therefore, a diaphragm slitting machine is needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a diaphragm slitting machine, which can prevent the diaphragm from being pulled during the cutting process and ensure the cutting effect.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Diaphragm slitting machine, including:

[0008] A base, wherein a support frame is fixedly provided on the base, and the support frame extends along a first direction;

[0009] Positioning components, at least two sets of positioning components are spaced apart along a first direction on the support frame, the positioning components include a lifting and pressing component and a fixed roller arranged opposite to each other, the lifting and pressing component can be lifted and lowered relative to the support frame along a second direction to cooperate with the fixed roller to press or release the diaphragm;

[0010] The cutting assembly is arranged on the support frame and is located between two adjacent groups of positioning assemblies. The cutting assembly can be lowered along the second direction to contact the diaphragm to cut the diaphragm.

[0011] In some embodiments, the lifting and pressing assembly includes a first driving member, a first mounting member and a pressure roller. The first driving member is arranged on the support frame. The first driving member is transmission-connected to the first mounting member. The first mounting member and the pressure roller both extend along a third direction. The pressure roller is rotationally connected to the first mounting member. The first driving member can drive the first mounting member to lift and lower along the second direction relative to the support frame.

[0012] In some embodiments, an elastic clamping assembly is provided between the first driving member and the first mounting member, and the elastic clamping assembly includes a fixed frame, an elastic telescopic assembly and a pressure plate. The first driving member is connected to the fixed frame, one end of the elastic telescopic assembly is connected to the fixed frame, and the other end of the elastic telescopic assembly is connected to the pressure plate. The pressure plate is slidably arranged in the fixed frame, and the pressure plate is fixedly connected to the first mounting member.

[0013] In some embodiments, the elastic telescopic assembly includes a telescopic rod and an elastic reset member, the elastic reset member is sleeved on the telescopic rod, one end of the telescopic rod is connected to the fixed frame, and the other end of the telescopic rod is connected to the pressure plate.

[0014] In some embodiments, at least one guide rod is provided between the fixing frame and the supporting frame, the guide rod passes through the supporting frame along the second direction, and the guide rod is fixedly connected to the fixing frame.

[0015] In some embodiments, the cutting assembly includes a second driving member, a second mounting member and at least one cutting knife, the second driving member is fixedly connected to the support frame, the piston rod of the second driving member is connected to the second mounting member, the second mounting member is arranged along a third direction, the cutting knife is arranged on the second mounting member, and the position of the cutting knife on the second mounting member can be adjusted.

[0016] In some embodiments, a sliding rod and a mounting rod extending along a third direction are fixedly connected to the second mounting member, the cutting knife is slidably arranged on the sliding rod, and the cutting knife can cooperate with the mounting rod to lock the position of the cutting knife.

[0017] In some embodiments, a plurality of first positioning holes are spaced apart on the mounting rod along the third direction, a second positioning hole is provided on the cutting knife to cooperate with the first positioning hole, and a positioning pin can be passed through the second positioning hole and the first positioning hole opposite to the second positioning hole.

[0018] In some embodiments, a reeling assembly is further included, the reeling assembly including a first bracket and a placement roller, the first bracket is arranged on the base and located on one side of the support frame, and the placement roller is arranged on the first bracket to rotate along a first direction.

[0019] In some embodiments, a winding assembly is further included, which includes a second bracket and a winding roller. The second bracket is arranged on the base and is located on the other side of the support frame. The winding roller is arranged on the second bracket and rotates along the first direction.

[0020] Beneficial effects of the utility model:

[0021] The utility model provides a diaphragm slitting machine, in which a support frame extending in a first direction is provided on a base, a positioning assembly and a cutting assembly are provided on the support frame, a fixed roller of the positioning assembly is fixedly provided on the support frame, and a lifting and pressing assembly of the positioning assembly can move up and down in a second direction, so that it can cooperate with the fixed roller to press or release the diaphragm, and the cutting assembly is located between adjacent positioning assemblies and can descend in the second direction to contact the diaphragm, thereby cutting the diaphragm. When cutting the diaphragm, the lifting and pressing assembly cooperates with the fixed roller to press the diaphragm, so that the diaphragm is in a tensioned state, and then the diaphragm is cut using the cutting assembly. The diaphragm slitting machine can prevent the diaphragm from being pulled during the cutting process, thereby ensuring the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of a diaphragm slitting machine of the utility model;

[0024] Figure 2 This is a side view of a cutting assembly and a positioning assembly in a diaphragm slitting machine of the present invention;

[0025] Figure 3 This is a schematic diagram of a lifting and pressing assembly in a diaphragm slitting machine of the present invention;

[0026] Figure 4 It is a schematic diagram of a cutting component in a diaphragm slitting machine of the present invention.

[0027] In the picture:

[0028] 1. Base; 11. Support frame; 2. Lifting and pressing assembly; 21. First driving member; 211. Rotating handle; 22. First mounting member; 221. Pressing roller; 222. Connecting rod; 23. Elastic pressing assembly; 231. Fixed frame; 232. Telescopic rod; 233. Elastic reset member; 234. Pressing plate; 24. Guide rod; 3. Fixed roller; 4. Cutting assembly; 41. Second driving member; 42. Second mounting member; 43. Cutting knife; 431. Second positioning hole; 44. Sliding rod; 45. Mounting rod; 451. First positioning hole; 5. Unwinding assembly; 51. First bracket; 52. Placement roller; 6. Rewinding assembly; 61. Second bracket; 62. Rewinding roller; 63. Motor. DETAILED DESCRIPTION

[0029] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0030] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0031] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0032] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0034] In the process of cutting the diaphragm, in order to prevent the diaphragm from being pulled during the cutting process and to ensure the cutting effect, such as Figures 1-4 As shown, the utility model provides a membrane slitting machine. The membrane slitting machine includes a base 1, a positioning component and a cutting component 4.

[0035] A support frame 11 is fixedly mounted on the base 1, and the support frame 11 extends along a first direction. At least two sets of positioning assemblies are spaced apart on the support frame 11 along the first direction. The positioning assemblies include a lifting and pressing assembly 2 and a fixed roller 3 that are relatively arranged. The lifting and pressing assembly 2 can be lifted and lowered relative to the support frame 11 along a second direction to cooperate with the fixed roller 3 to press or release the diaphragm. The cutting assembly 4 is disposed on the support frame 11 and is located between the two adjacent sets of positioning assemblies. The cutting assembly 4 can descend along the second direction until it contacts the diaphragm to cut the diaphragm. The first direction is the direction of movement along the diaphragm, and the second direction is the vertical direction.

[0036] When cutting the diaphragm, the lifting and pressing assembly 2 cooperates with the fixed roller 3 to press the diaphragm so that the diaphragm is in a tensioned state. Then the diaphragm is cut using the cutting assembly 4, which can prevent the diaphragm from being pulled during the cutting process and ensure the cutting effect.

[0037] In some embodiments, the support frame 11 is U-shaped, and both ends of the support frame 11 are fixedly connected to the base 1. A space is formed between the support frame 11 and the base 1 for installing the positioning assembly and the cutting assembly 4. This arrangement facilitates the installation of the positioning assembly and the cutting assembly 4 and has a compact structure.

[0038] In some embodiments, the lifting and pressing assembly 2 includes a first driving member 21, a first mounting member 22, and a pressure roller 221. The first driving member 21 is disposed on the support frame 11 and is in transmission connection with the first mounting member 22. Both the first mounting member 22 and the pressure roller 221 extend along a third direction. The third direction is along the width of the diaphragm. The pressure roller 221 is rotationally connected to the first mounting member 22, and the first driving member 21 is capable of driving the first mounting member 22 to rise and fall relative to the support frame 11 along a second direction. In this embodiment, the first driving member 21 is a bolt that is threadedly engaged with a threaded hole in the support frame 11, and the end of the bolt is in floating connection with the first mounting member 22. When the diaphragm needs to be clamped, the first driving member 21 is rotated, causing the first driving member 21 to lower the first mounting member 22, thereby causing the pressure roller 221 to cooperate with the fixed roller 3 to clamp the diaphragm. This method allows for fine adjustment of the height of the pressure roller 221, ensuring effective compression of the diaphragm. In order to facilitate the rotation of the first driving member 21, a rotating handle 211 is fixedly provided on the top of the first driving member 21. In other embodiments, a gear rack structure or a cylinder can also be used as the first driving member 21, which can also play the role of controlling the lifting.

[0039] In some embodiments, an elastic clamping assembly 23 is provided between the first driving member 21 and the first mounting member 22. The elastic clamping assembly 23 includes a fixed frame 231, an elastic telescopic assembly, and a pressure plate 234. The first driving member 21 is connected to the fixed frame 231, one end of the elastic telescopic assembly is connected to the fixed frame 231, and the other end of the elastic telescopic assembly is connected to the pressure plate 234. The pressure plate 234 is slidably arranged in the fixed frame 231, and the pressure plate 234 is fixedly connected to the first mounting member 22. Specifically, the pressure plate 234 is fixedly connected to the first mounting member 22 via a connecting rod 222. The connecting rod 222 is inserted into the fixed frame 231 and can act as a guide. When the first driving member 21 drives the fixed frame 231 downward, the pressure roller 221 and the fixed roller 3 clamp the diaphragm, and the pressure plate 234 moves upward in the fixed frame 231 along the second direction. The compression of the elastic telescopic assembly generates a corresponding elastic force. Under the action of the elastic force, the pressure roller 221 and the fixed roller 3 are stably matched, thereby stably clamping the diaphragm.

[0040] In some embodiments, the elastic telescopic assembly includes a telescopic rod 232 and an elastic return member 233. The elastic return member 233 is mounted on the telescopic rod 232. One end of the telescopic rod 232 is connected to the fixed frame 231, and the other end of the telescopic rod 232 is connected to the pressure plate 234. When the pressure plate 234 moves upward in the second direction relative to the fixed frame 231, the telescopic rod 232 shortens, and the elastic return member 233 is compressed, generating an elastic force acting on the pressure plate 234. The elastic force ultimately acts on the pressure roller 221 through the pressure plate 234, ensuring that the pressure roller 221 and the fixed roller 3 are stably engaged and compressing the diaphragm. In this embodiment, the elastic return member 233 is a spring, one end of which abuts the pressure plate 234, and the other end abuts the fixed frame 231.

[0041] In some embodiments, at least one guide rod 24 is disposed between the fixed frame 231 and the support frame 11. The guide rod 24 extends through the support frame 11 along the second direction and is fixedly connected to the fixed frame 231. Specifically, in this embodiment, three guide rods 24 are provided. The provision of the guide rods 24 guides the movement of the fixed frame 231 relative to the support frame 11, ensuring that the fixed frame 231 can only be raised and lowered along the second direction under the action of the first drive member 21, thereby ensuring that the fixed roller 3 and the pressure roller 221 can effectively cooperate to compress the diaphragm.

[0042] In some embodiments, the cutting assembly 4 includes a second driving member 41, a second mounting member 42, and at least one cutting knife 43. The second driving member 41 is fixedly connected to the support frame 11. The piston rod of the second driving member 41 is connected to the second mounting member 42. The second mounting member 42 is arranged along a third direction. The cutting knife 43 is arranged on the second mounting member 42, and the position of the cutting knife 43 on the second mounting member 42 can be adjusted. Specifically, in this embodiment, the second driving member 41 is a cylinder. By controlling the extension or retraction of the piston rod of the cylinder, the cutting knife 43 can be controlled to rise and fall. When multiple cutting knives 43 are provided on the second mounting member 42, and the position of the cutting knife 43 on the second mounting member 42 can be adjusted, the spacing between the cutting knives 43 can be reasonably adjusted according to the different specifications of the lithium battery to achieve diaphragm cutting of different widths.

[0043] In some embodiments, a sliding rod 44 and a mounting rod 45 extending in a third direction are fixedly connected to the second mounting member 42. The cutting blade 43 is slidably mounted on the sliding rod 44, and the cutting blade 43 can cooperate with the mounting rod 45 to lock the cutting blade 43 in place. Specifically, the second mounting member 42 is U-shaped, facilitating the installation of the sliding rod 44 and the mounting rod 45. The sliding rod 44 guides the cutting blade 43, facilitating quick adjustment of the cutting blade 43. After the cutting blade 43 has adjusted its position and spacing, the cutting blade 43 cooperates with the mounting rod 45 to lock the position, allowing the cutting blade 43 to cut the diaphragm of the desired width as designed.

[0044] In some embodiments, a plurality of first positioning holes 451 are spaced apart along the third direction on the mounting rod 45. The cutting blade 43 is provided with a second positioning hole 431 that mates with the first positioning hole 451. A positioning pin can be inserted through the second positioning hole 431 and the first positioning hole 451 opposite the second positioning hole 431. To adjust the position of the cutting blade 43, the positioning pin is first removed, and then the cutting blade 43 is moved. Once the cutting blade 43 is positioned, the positioning pin is simply inserted to lock the position of the cutting blade 43 relative to the mounting rod 45. This arrangement facilitates quick adjustment of the position of the cutting blade 43 relative to the mounting rod 45.

[0045] In some embodiments, the diaphragm slitting machine further includes an unwinding assembly 5, which includes a first bracket 51 disposed on the base 1 and located on one side of the support frame 11, and a placement roller 52 rotatably disposed on the first bracket 51 along a first direction. When the diaphragm is cut, the diaphragm roll is placed on the placement roller 52, which ensures the continuity of the diaphragm cutting process. In this embodiment, a slot for clamping the placement roller 52 is provided on the first bracket 51, and the two ends of the placement roller 52 are located in the slots of the first bracket 51. The above method facilitates the installation and removal of the placement roller 52, thereby facilitating the placement of the diaphragm roll on the placement roller 52.

[0046] In some embodiments, the diaphragm slitting machine also includes a winding assembly 6, which includes a second bracket 61 and a winding roller 62. The second bracket 61 is arranged on the base 1, and the second bracket 61 is located on the other side of the support frame 11. The winding roller 62 is arranged on the second bracket 61 to rotate along the first direction. By rotating the winding roller 62, the cut diaphragm can be wound up. In order to realize the automated operation of diaphragm winding, a motor 63 is fixedly provided on the second bracket 61, and the output shaft of the motor 63 is fixedly connected to the winding roller 62. The winding roller 62 is driven to rotate by the motor 63, thereby realizing automatic winding of the cut diaphragm.

[0047] The working process of this diaphragm slitting machine is as follows:

[0048] The diaphragm roll is put on the placement roller 52, and then one end of the diaphragm is passed between the pressure roller 221 and the fixed roller 3, and finally wound on the winding roller 62. When the cutting width needs to be adjusted, the cutting knife 43 is adjusted to the set position, and the relative position of the cutting knife 43 and the mounting rod 45 is locked by the positioning pin, so that the cutting knife 43 can cut diaphragms of different widths according to the different specifications of lithium batteries and customer needs.

[0049] Then, the first driving member 21 is rotated to push the fixed frame 231 to move downward. The movement of the fixed frame 231 can push the pressure roller 221 and the fixed roller 3 to clamp the diaphragm. At this time, the pressure plate 234 will move up in the fixed frame 231 to compress the telescopic rod 232 and the elastic reset member 233, thereby generating a corresponding elastic force. The elastic force can be used to press the diaphragm tightly and position it between the pressure roller 221 and the fixed roller 3, avoiding the diaphragm material being pulled by the cutting knife 43 during cutting, which causes uneven incisions. Then, the second driving member 41 is started to drive the cutting knife 43 to move downward to complete the cutting of the new energy lithium battery diaphragm.

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Diaphragm slitting machine, characterized in that, include: A base (1), a support frame (11) being fixedly arranged on the base (1), and the support frame (11) extending along a first direction; Positioning components, at least two groups of positioning components are spaced apart along a first direction on the support frame (11), the positioning components comprising a lifting and pressing component (2) and a fixed roller (3) arranged relatively to each other, the lifting and pressing component (2) being capable of lifting and lowering relative to the support frame (11) along a second direction to cooperate with the fixed roller (3) to press or release the diaphragm; A cutting assembly (4) is arranged on the support frame (11) and is located between two adjacent groups of positioning assemblies. The cutting assembly (4) can be lowered along the second direction to contact the diaphragm to cut the diaphragm.

2. The diaphragm slitting machine according to claim 1, characterized in that: The lifting and pressing assembly (2) comprises a first driving member (21), a first mounting member (22) and a pressure roller (221); the first driving member (21) is arranged on the support frame (11); the first driving member (21) is transmission-connected to the first mounting member (22); the first mounting member (22) and the pressure roller (221) both extend along a third direction; the pressure roller (221) is rotationally connected to the first mounting member (22); and the first driving member (21) can drive the first mounting member (22) to lift and lower along a second direction relative to the support frame (11).

3. The diaphragm slitting machine according to claim 2, characterized in that: An elastic pressing assembly (23) is provided between the first driving member (21) and the first mounting member (22), and the elastic pressing assembly (23) includes a fixed frame (231), an elastic telescopic assembly and a pressure plate (234). The first driving member (21) is connected to the fixed frame (231), one end of the elastic telescopic assembly is connected to the fixed frame (231), and the other end of the elastic telescopic assembly is connected to the pressure plate (234). The pressure plate (234) is slidably provided in the fixed frame (231), and the pressure plate (234) is fixedly connected to the first mounting member (22).

4. The diaphragm slitting machine according to claim 3, characterized in that: The elastic telescopic assembly comprises a telescopic rod (232) and an elastic reset member (233), wherein the elastic reset member (233) is sleeved on the telescopic rod (232), one end of the telescopic rod (232) is connected to the fixed frame (231), and the other end of the telescopic rod (232) is connected to the pressing plate (234).

5. The diaphragm slitting machine according to claim 3, characterized in that: At least one guide rod (24) is provided between the fixed frame (231) and the support frame (11); the guide rod (24) passes through the support frame (11) along a second direction, and the guide rod (24) is fixedly connected to the fixed frame (231).

6. The diaphragm slitting machine according to claim 1, characterized in that: The cutting assembly (4) comprises a second driving member (41), a second mounting member (42) and at least one cutting knife (43), wherein the second driving member (41) is fixedly connected to the support frame (11), a piston rod of the second driving member (41) is connected to the second mounting member (42), the second mounting member (42) is arranged along a third direction, the cutting knife (43) is arranged on the second mounting member (42), and the position of the cutting knife (43) on the second mounting member (42) can be adjusted.

7. The diaphragm slitting machine according to claim 6, characterized in that: A sliding rod (44) and a mounting rod (45) extending along a third direction are fixedly connected to the second mounting member (42); the cutting knife (43) is slidably arranged on the sliding rod (44), and the cutting knife (43) can cooperate with the mounting rod (45) to lock the position of the cutting knife (43).

8. The diaphragm slitting machine according to claim 7, characterized in that: A plurality of first positioning holes (451) are provided on the mounting rod (45) at intervals along the third direction, a second positioning hole (431) cooperating with the first positioning hole (451) is provided on the cutting knife (43), and a positioning pin can be inserted into the second positioning hole (431) and the first positioning hole (451) opposite to the second positioning hole (431).

9. The diaphragm slitting machine according to claim 1, characterized in that: The unwinding assembly (5) further comprises a first bracket (51) and a placement roller (52), wherein the first bracket (51) is arranged on the base (1) and is located on one side of the support frame (11), and the placement roller (52) is arranged on the first bracket (51) so as to rotate along a first direction.

10. The diaphragm slitting machine according to claim 9, characterized in that: The invention also includes a winding assembly (6), wherein the winding assembly (6) includes a second bracket (61) and a winding roller (62), wherein the second bracket (61) is arranged on the base (1) and is located on the other side of the support frame (11), and the winding roller (62) is arranged on the second bracket (61) so as to rotate along a first direction.

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