Lithium battery separator scrap edge guide mechanism, scrap edge collection device and production equipment

Abstract

The application relates to the technical field of diaphragm production, in particular to a lithium battery diaphragm scrap edge guiding mechanism, a scrap edge collecting device and a production equipment, the scrap edge guiding mechanism comprises a fixing frame and a guide roller assembly, the guide roller assembly is arranged on the fixing frame; the guide roller assembly comprises a first guide roller, a second guide roller, a third guide roller and a fourth guide roller, the first guide roller and the second guide roller are arranged in parallel along a first direction, the third guide roller and the fourth guide roller are arranged in parallel along a second direction, so as to form a guiding space between the first guide roller, the second guide roller, the third guide roller and the fourth guide roller, and the guiding space is used for guiding the scrap edge to pass through. Since the guiding space formed by the four rollers is arranged on the guide roller assembly, the scrap edge can be limited around the scrap edge, the scrap edge is prevented from jumping out of the guiding mechanism, the scrap edge guiding is prevented from being jammed to cause the wrapping of the rollers, and the stable and continuous operation of the diaphragm production equipment is effectively ensured.

Description

Technical Field

[0001] This application relates to the field of separator production technology, and more specifically to a waste edge guiding mechanism, waste edge collection device and production equipment for lithium battery separators. Background Technology

[0002] The separator is one of the key internal components in the structure of a lithium battery. The performance of the separator determines the battery's interface structure, internal resistance, etc., and directly affects the battery's capacity, cycle life, and safety performance. A high-performance separator plays an important role in improving the overall performance of the battery.

[0003] In the production process of lithium battery separators, processes such as casting, lamination, stretching, layering, and slitting all involve waste edge removal and collection. One of the keys to the stability of waste edge collection performance lies in the ability of the waste edge guiding mechanism to smoothly guide the waste edge to the collection position. If the waste edge gets stuck in the guiding mechanism, one side of the waste edge collection device will break off during collection, causing the main equipment to experience waste edge wrapping around the rollers due to untimely waste edge feeding. In severe cases, this can tear the separator or even damage the main equipment.

[0004] Currently, the guiding mechanism includes a one-way guide wheel, which guides the waste edge to the take-up shaft at the collection position. However, when the waste edge passes through the guide wheel, due to the lack of a limiting structure, it is easy for it to jump out of the guide wheel or even get tangled around the shaft, resulting in abnormal guidance or jamming of the waste edge, or even tearing off the waste edge, affecting the normal operation of the main equipment or even damaging the main equipment.

[0005] Therefore, there is an urgent need for a waste collection mechanism that can solve the above-mentioned technical problems. Utility Model Content

[0006] This application provides a waste edge guiding mechanism, a waste edge collection device, and a production equipment for lithium battery separators, which can at least partially solve or improve the above-mentioned technical problems.

[0007] According to a first aspect, this application provides a waste edge guiding mechanism for a lithium battery separator, comprising: Fixture; and A guide roller assembly is disposed on the fixed frame; the guide roller assembly includes a first guide roller, a second guide roller, a third guide roller, and a fourth guide roller, wherein the first guide roller and the second guide roller are arranged parallel to each other along a first direction, and the third guide roller and the fourth guide roller are arranged parallel to each other along a second direction, so as to form a guide space between the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller, the guide space being used to guide the waste edge through.

[0008] In some alternative embodiments, the first direction is perpendicular to the second direction.

[0009] In some alternative embodiments, at least one of the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller is movably connected to the fixed frame.

[0010] In some optional embodiments, the fixing frame includes a base plate and side plates disposed at both ends of the base plate, with the first guide roller and the second guide roller disposed parallel to each other between the two side plates; and the third guide roller and the fourth guide roller disposed parallel to each other on the base plate.

[0011] In some optional embodiments, both side plates are provided with at least one first mounting hole along the first direction, and the first guide roller and / or the second guide roller are detachably connected to the first mounting hole; and / or, The base plate is provided with at least one second mounting hole along the second direction, and the third guide roller and / or the fourth guide roller are detachably connected to the second mounting hole.

[0012] According to a second aspect, this application provides a waste edge collection device for lithium battery separators, comprising: Base; A bracket, which is disposed on the base; A take-up roller, which is mounted on the support, is used to wind up and collect waste edges; A drive mechanism, mounted on the bracket, with its output end connected to the take-up roller, for driving the take-up roller to rotate; and The waste edge guiding mechanism described above is located upstream of the take-up roller and is used to guide the waste edge to the take-up roller.

[0013] In some optional embodiments, the bracket is further provided with a movable adjustment mechanism, which is connected to the waste edge guide mechanism and is used to drive the waste edge guide mechanism to move.

[0014] In some alternative embodiments, the waste edge collection device further includes a first baffle and a second baffle, the first baffle and the second baffle being used to clamp and mount the take-up roller.

[0015] According to a third aspect, this application provides a lithium battery separator production apparatus, including the waste edge collection device described above.

[0016] In some optional embodiments, the diaphragm production equipment is at least one of a diaphragm casting equipment, a diaphragm laminating equipment, a diaphragm stretching equipment, a diaphragm layering equipment, and a diaphragm slitting equipment.

[0017] According to the waste edge guiding mechanism, waste edge collection device and production equipment of lithium battery separator in this embodiment, the waste edge guiding mechanism includes a guide roller assembly composed of four rollers. The guide roller assembly has a guiding space formed by the four rollers. The guiding space is used to guide the waste edge through and to limit it around the waste edge, so as to avoid the waste edge jumping out of the guiding mechanism and to avoid the waste edge getting stuck and thus causing the waste edge to wrap around the roller, effectively ensuring the stable and continuous operation of the separator production equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the waste edge guiding mechanism in operation in one embodiment; Figure 2 This is a schematic diagram of the waste edge guiding mechanism in one embodiment; Figure 3 This is a front view of the waste edge guiding mechanism in one embodiment; Figure 4 This is a schematic diagram of the structure of the fixing frame in one embodiment; Figure 5 This is a schematic diagram of the waste edge collection device in one embodiment.

[0019] The components include: 1. Waste edge guiding mechanism; 11. Fixing frame; 111. Base plate; 1111. Second mounting hole; 112. Side plate; 1121. First mounting hole; 113. Bearing; 114. Bearing seat; 12. Guide roller assembly; 121. First guide roller; 122. Second guide roller; 123. Third guide roller; 124. Fourth guide roller; 125. Guide space; 2. Waste edge collection device; 21. Base; 22. Support; 23. Take-up roller; 24. Drive mechanism; 25. Moving and adjusting mechanism; 251. Lead screw; 26. Traveling wheel; 27. First baffle; 28. Second baffle; 3. Waste edges; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0021] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0022] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0023] The separator is one of the key components of a lithium battery, and its performance directly determines the battery's safety, cycle life, and rate performance. The separator acts as a physical barrier and ion channel between the positive and negative electrodes, enabling ion transport between them.

[0024] To ensure the dimensional accuracy, edge quality, and performance of the finished diaphragm, and to meet the assembly and functional requirements of downstream applications, waste edges need to be removed during the diaphragm production process (including casting, lamination, stretching, delamination, and slitting). For example, in the slitting process, the diaphragm needs to be cut into finished films of specific widths according to downstream requirements; the excess edges on both sides after cutting are the waste edges.

[0025] One embodiment of this application provides a waste edge guiding mechanism for lithium battery separators (hereinafter referred to as "waste edge guiding mechanism"). The waste edge guiding mechanism includes a guide roller assembly, which includes a first guide roller, a second guide roller, a third guide roller, and a fourth guide roller. The first guide roller and the second guide roller are arranged parallel to each other along a first direction, and the third guide roller and the fourth guide roller are arranged parallel to each other along a second direction to form a guiding space between the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller. The guiding space is used to guide the waste edge through. Due to the arrangement of the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller, the waste edge is confined within the guiding space formed by the four guide rollers during the guiding movement, which can prevent the waste edge from jumping out of the guide roller assembly. This solves a series of problems caused by jumping out of the guide roller assembly, such as roll wrapping, separator breakage, or damage to production equipment.

[0026] Please see Figures 1 to 4 The waste edge guiding mechanism 1 includes a fixed frame 11 and a guide roller assembly 12. The guide roller assembly 12 is disposed on the fixed frame 11. The fixed frame 11 is used to support and fix the guide roller assembly 12, that is, the fixed frame 11 provides an installation base for the guide roller assembly 12. The guide roller assembly 12 is used to guide the waste edge 3 to the collection position.

[0027] In some embodiments, the guide roller assembly 12 includes a first guide roller 121, a second guide roller 122, a third guide roller 123, and a fourth guide roller 124. The first guide roller 121 and the second guide roller 122 are arranged parallel to each other along a first direction X, and the third guide roller 123 and the fourth guide roller 124 are arranged parallel to each other along a second direction Y, so as to form a guide space 125 between the first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124. The guide space 125 is used to guide the waste edge 3 through. Since the first guide roller 121 and the second guide roller 122 are arranged in parallel, they can limit the waste edge 3 in the first direction X. The third guide roller 123 and the fourth guide roller 124 are arranged in parallel, and they can limit the waste edge 3 in the second direction Y. Thus, the waste edge 3 is surrounded and limited on all four sides, so that the waste edge 3 cannot jump out of the guide mechanism no matter how it jumps. This avoids the waste edge 3 from getting tangled around the shaft or wrapping around the roller. Correspondingly, it avoids the damage to the production equipment and the tearing of the diaphragm caused by jumping out of the guide mechanism, and ensures the collection effect of the waste edge 3.

[0028] In some embodiments, the first direction X and the second direction Y are perpendicular to each other or at an angle, and the first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124 form a "well" shape, with the middle of the "well" being a parallelogram-shaped guide space 125 through which the waste edge 3 passes. For an example, please refer to... Figures 1 to 3 ,in Figure 2This is a main view of the waste edge guiding mechanism 1 viewed along the third direction Z. The first direction X and the second direction Y are perpendicular to each other, that is, the first guide roller 121 is perpendicular to the third guide roller 123 and the fourth guide roller 124, and the second guide roller 122 is perpendicular to the third guide roller 123 and the fourth guide roller 124. The first guide roller 121 and the second guide roller 122 are both extended along the second direction Y, and the third guide roller 123 and the fourth guide roller 124 are both extended along the first direction X. The first guide roller 121, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124 form a "well" shape. The middle of the "well" is a rectangular (a special parallelogram) guide space 125 through which the waste edge 3 passes. Since the diaphragm is generally a sheet-like structure, the waste edges 3 cut off on both sides are also sheet-like structures, that is, they have a length direction parallel to the direction of travel of the waste edge 3, a width direction perpendicular to the length direction, and a thickness direction perpendicular to the length and width directions (the thickness of the sheet-like structure is generally small). The width direction is parallel to the second direction Y, and the thickness direction is parallel to the first direction X. The rectangular guide space 125 design can better fit the shape of the waste edge 3, realizing a compact design of the guide mechanism. Of course, in another example, the first direction X and the second direction Y can be set at an angle, that is, the first guide roller 121 is set at an angle with the third guide roller 123 and the fourth guide roller 124, and the second guide roller 122 is set at an angle with the third guide roller 123 and the fourth guide roller 124. The first guide roller 121, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124 roughly form a "well" shape, and the middle of the "well" is the parallelogram guide space 125 through which the waste edge 3 passes.

[0029] To clearly describe the waste edge guiding mechanism 1, the following will take the example of the first direction X and the second direction Y being perpendicular to each other. A third direction Z, which is perpendicular to both the first direction X and the second direction Y, is also defined, as follows: Figure 1 As shown, the first direction X is parallel to the direction indicated by the X-axis, the second direction Y is parallel to the direction indicated by the Y-axis, and the third direction Z is parallel to the direction indicated by the Z-axis. Here, the first direction X is the thickness direction of the waste edge 3, the second direction Y is the width direction of the waste edge 3, and the third direction Z is the transmission direction of the waste edge 3. The first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124 are arranged sequentially along the third direction Z. It is understood that the above definitions are only for the convenience of understanding the relative positional relationships between the structures in the waste edge guiding mechanism 1 and should not be construed as limitations on this application.

[0030] Please continue reading. Figure 2 and Figure 3In some embodiments, the fixing frame 11 includes a base plate 111 and side plates 112 disposed at both ends of the base plate 111. A first guide roller 121 and a second guide roller 122 are disposed parallel to each other between the two side plates 112; a third guide roller 123 and a fourth guide roller 124 are disposed parallel to each other on the base plate 111. In one example, the base plate 111 extends along a second direction Y, and the two side plates 112 extend along a first direction X and are disposed parallel to each other on the base plate 111 along the first direction X. The base plate 111 and the two side plates 112 are combined to form a "U"-shaped structure with one end open. The first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124 are rotatably disposed within the "U"-shaped structure. It can also be understood that the two ends of the first guide roller 121 and the second guide roller 122 are rotatably connected to the two side plates 112, and one end of the third guide roller 123 and the fourth guide roller 124 is rotatably connected to the base plate 111.

[0031] Of course, in other embodiments, the fixing frame 11 may also include a top plate (not shown), the top plate, the bottom plate 111 and the two side plates 112 are combined to form a closed rectangular frame, and the first guide roller 121, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124 are rotatably disposed within the rectangular frame.

[0032] In some embodiments, the base plate 111 and the side plate 112 are each provided with a bearing 113 and a bearing seat 114. The first guide roller 121 and the second guide roller 122 are rotatably connected to the side plate 112 through the bearing 113 and the bearing seat 114. The third guide roller 123 and the fourth guide roller 124 are rotatably connected to the base plate 111 through the bearing 113 and the bearing seat 114.

[0033] In other embodiments, rotating columns are provided on the base plate 111 and the side plate 112, the first guide roller 121 and the second guide roller 122 are sleeved on the rotating columns on the side plate 112, and the third guide roller 123 and the fourth guide roller 124 are both sleeved on the rotating columns on the base plate 111.

[0034] In some embodiments, at least one of the first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124 is movably connected to the fixed frame 11. Exemplarily, at least one of the first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124 is detachably connected to the fixed frame 11. This detachable connection allows for the movement of at least one of the first guide roller 121, the second guide roller 122, the third guide roller 123, and the fourth guide roller 124, thereby changing the size of the guide space 125 to accommodate waste edges 3 of different sizes, thus adapting to different application scenarios. Exemplarily, since the extension directions of the third guide roller 123 and the fourth guide roller 124 are parallel to the thickness direction of the waste edge 3, and the third guide roller 123 and the fourth guide roller 124 are arranged parallel to each other along the width direction of the waste edge 3, moving at least one of the third guide roller 123 and the fourth guide roller 124 can adjust the size of the guide space 125 in the width direction to accommodate waste edges 3 of different widths. Of course, the size of the guide space 125 in the thickness direction can also be adjusted by adjusting at least one of the first guide roller 121 and the second guide roller 122 to accommodate waste edges 3 of different thicknesses.

[0035] It should be noted that "at least one" in this application can be understood as having a quantity of not less than one, that is, including one, two, three... up to all possible quantities. At least one of the first guide roller 121, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124 is detachably connected to the fixing frame 11, that is, it can be understood that one, two, three or four of the first guide roller 121, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124 are detachably connected to the fixing frame 11.

[0036] In some embodiments, each of the two side plates 112 has at least one first mounting hole 1121 along the first direction X, and the first guide roller 121 and / or the second guide roller 122 are detachably connected to the first mounting hole 1121; and / or, the bottom plate 111 has at least one second mounting hole 1111 along the second direction Y, and the third guide roller 123 and / or the fourth guide roller 124 are detachably connected to the second mounting hole 1111. The first mounting hole 1121 and the second mounting hole 1111 are provided to realize the installation and fixation of the first guide roller, the second guide roller 122, the third guide roller 123 and the fourth guide roller 124.

[0037] When a first mounting hole 1121 is provided, the first mounting hole 1121 can be constructed as an elongated groove structure. The first guide roller 121 and the second guide roller 122 are positioned at different positions within the first mounting hole 1121. By adjusting the positions of the first guide roller 121 and / or the second guide roller 122 within the first mounting hole 1121, the distance between them can be adjusted to achieve dimensional adjustment of the guide space 125 in the first direction X. Similarly, when a second mounting hole 1111 is provided, the second mounting hole 1111 can be constructed as an elongated groove structure. The third guide roller 123 and the fourth guide roller 124 are positioned at different positions within the second mounting hole 1111. By adjusting the positions of the third guide roller 123 and / or the fourth guide roller 124 within the second mounting hole 1111, the distance between them can be adjusted to achieve dimensional adjustment of the guide space 125 in the second direction Y.

[0038] When two first mounting holes 1121 and two mounting holes 1111 are provided, one of the first mounting holes 1121 and one of the second mounting holes 1111 are constructed as elongated groove structures. The shape of the other first mounting hole 1121 and the second mounting hole 1111 is not limited and can be circular, rectangular, elongated or other shapes that are compatible with the guide roller assembly 12. The spacing can be adjusted by adjusting the installation at different positions on the elongated groove structure, thereby realizing the size adjustment of the guide space 125.

[0039] When two or more first mounting holes 1121 and second mounting holes 1111 are provided, the two or more first mounting holes 1121 are arranged sequentially along the first direction X, and the two or more second mounting holes 1111 are arranged sequentially along the second direction Y. The first guide roller 121 and / or the second guide roller 122 can be adjusted to be in different first mounting holes 1121, and the third guide roller 123 and / or the fourth guide roller 124 can be in different second mounting holes 1111, so as to realize the size adjustment of the guide space 125. Of course, the shape of the first mounting hole 1121 and the second mounting hole 1111 is not limited, and can be circular, rectangular, elongated or other shapes that are compatible with the guide roller assembly 12. When two or more first mounting holes 1121 and second mounting holes 1111 are provided, each pair of first mounting holes 1121 can be grouped together, and the first mounting holes 1121 of different groups can be arranged sequentially along the third direction Z. The spacing between the first mounting holes 1121 of different groups is different. By installing the first guide roller 121 and the second guide roller 122 in the first mounting holes 1121 of different groups, the guide space 125 can be adjusted to different dimensions in the first direction X (or thickness direction). Each pair of second mounting holes 1111 can be grouped together, and the second mounting holes 1111 of different groups can be arranged sequentially along the third direction Z. The spacing between the second mounting holes 1111 of different groups is different. By installing the third guide roller 123 and the fourth guide roller 124 in the second mounting holes 1111 of different groups, the guide space 125 can be adjusted to different dimensions in the second direction Y (or width direction).

[0040] For example, please refer to Figure 4 There are two sets of second mounting holes 1111. The two sets of second mounting holes 1111 are arranged sequentially along the third direction Z. The spacing between the two second mounting holes 1111 in one set is smaller, and the spacing between the two sets is larger, so as to accommodate two different widths of waste edge 3.

[0041] It should be further explained that a long groove structure refers to a groove-shaped structure whose length is much greater than its width (or depth). It is usually long and narrow, and its length is the direction in which the long groove extends, which is also the direction in which the components installed in it can be adjusted and moved. The cross-section of a long groove structure can generally be rectangular, trapezoidal, U-shaped, etc.

[0042] Please see Figure 5This application also provides a waste edge collection device 2 for lithium battery separators (hereinafter referred to as "waste edge collection device 2"), including a base 21, a support 22, a winding roller 23, a drive mechanism 24, and a waste edge guiding mechanism 1. The support 22 is disposed on the base 21; the winding roller 23 is disposed on the support 22 and is used to wind and collect waste edges 3; the drive mechanism 24 is disposed on the support 22, and the output end of the drive mechanism 24 is connected to the winding roller 23 for driving the winding roller 23 to rotate; the waste edge guiding mechanism 1 is the waste edge guiding mechanism 1 in any of the above embodiments, and the waste edge guiding mechanism 1 is disposed upstream of the winding roller 23 for guiding the waste edges 3 to the winding roller 23. The specific structure of the waste edge guiding mechanism 1 has been described in detail above and will not be repeated here. The other components of the waste edge collection device 2 will be described below.

[0043] It should be noted that in a complete production line, upstream equipment refers to the equipment that provides the raw materials needed for downstream equipment. The waste edge 3 guide roller is located upstream of the take-up roller 23. This can be understood as the waste edge guiding mechanism 1 providing the raw materials needed for the take-up roller 23. The waste edge 3 guide roller, through its own rotation, organizes the messy waste edge 3 after slitting into a stable conveying path and transfers it to the downstream take-up roller 23. The take-up roller 23 then rolls the guided waste edge 3 into a neat waste edge 3 roll. The raw material here is not the base material from the entire production line, but rather the neatly guided waste edge 3.

[0044] In some embodiments, the take-up roller 23 is an air-expanding shaft. During winding, an empty core (paper core, plastic core, etc.) is placed on the air-expanding shaft, and air is pumped into the shaft. The expansion key (or rubber strip) on the surface of the shaft will pop out radially and press tightly against the inner wall of the core, instantly fixing the core. During unwinding, the air pressure inside the shaft is released, the expansion key (or rubber strip) automatically retracts, the shaft returns to its initial diameter, and the wound roll can be easily pulled out directly from the shaft without disassembling any parts. Thus, rapid clamping and unwinding can be achieved through air pressure control, improving the efficiency of waste edge 3 collection. Moreover, the air-expanding shaft is a mature technology in the field, and the use of the air-expanding shaft reduces the difficulty of operation and the cost of the device.

[0045] In some embodiments, the drive mechanism 24 includes a first drive motor, the output end of which is connected to the take-up roller 23, and the rotation of the first drive motor can drive the rotation of the take-up roller 23.

[0046] In some other embodiments, the drive mechanism 24 may also include a mechanical transmission mechanism, such as a gear transmission mechanism, a chain transmission mechanism or a belt transmission mechanism, which is used to transmit the power of the first drive motor to the take-up roller 23 to drive the take-up roller 23 to rotate.

[0047] In some embodiments, the support 22 is further provided with a movable adjustment mechanism 25 (also known as a "cycloidal device"), which is connected to the waste edge guiding mechanism 1 and is used to drive the waste edge guiding mechanism 1 to move. For example, the length of the take-up roller 23 is greater than the width of the waste edge 3. The movable adjustment mechanism 25 can drive the waste edge guiding mechanism 1 to move along the length direction of the take-up roller 23 (parallel to the width direction of the waste edge 3), so that the waste edge 3 is distributed regularly on the take-up roller 23, avoiding the accumulation and tangling of the waste edge 3, and finally forming a tight and regular waste edge 3 roll.

[0048] In some embodiments, the moving adjustment mechanism 25 includes a second drive motor (not shown) and a lead screw 251. The lead screw 251 extends along the second direction Y. The waste edge guide mechanism 1 is movably connected to the lead screw 251. The second drive motor is connected to the lead screw 251 and is used to drive the lead screw 251 to rotate, thereby driving the waste edge guide mechanism 1 to perform linear reciprocating motion along the lead screw 251.

[0049] Of course, in other embodiments, the moving adjustment mechanism 25 may also include a second drive motor and a mechanical transmission mechanism, such as a gear transmission mechanism, a chain transmission mechanism, or a belt transmission mechanism. The mechanical transmission mechanism is used to transmit the power of the second drive motor to the waste edge guide mechanism 1 to drive the waste edge guide mechanism 1 to move. For example, the mechanical transmission mechanism is a chain transmission mechanism, and the output end of the second drive motor is connected to the drive sprocket in the chain transmission mechanism to drive the drive sprocket to rotate. The waste edge guide mechanism 1 is connected to the chain and moves along with it during the movement of the chain.

[0050] In other embodiments, the moving adjustment mechanism 25 includes a linear cylinder or a linear motor, which can be directly connected to the waste edge guide mechanism 1 to drive the waste edge guide mechanism 1 to perform linear reciprocating motion along the second direction Y.

[0051] In some embodiments, the bracket 22 has an internal accommodating space, and the mechanical transmission mechanism connected to the first drive motor and the second drive motor can be disposed within the accommodating space for protection.

[0052] In some embodiments, the base 21 is provided with wheels 26 at the bottom to facilitate the movement of the entire collection device, thereby making it easy to move it to different application scenarios (such as in combination with different production equipment) for waste edge 3 collection.

[0053] In some embodiments, the waste edge collection device 2 further includes a first baffle 27 and a second baffle 28, which are used to clamp and mount the take-up roller 23. For an example, please refer to... Figure 5The first baffle 27 and the second baffle 28 are arranged parallel to each other along the second direction Y and both extend along the first direction X. The two ends of the air shaft are rotatably connected to the first baffle 27 and the second baffle 28 respectively. The two ends of the lead screw 251 of the adjusting and moving mechanism are also connected to the first baffle 27 and the second baffle 28 respectively.

[0054] The embodiments of this application also provide a lithium battery separator production equipment, including the waste edge collection device in any of the above embodiments. The separator production equipment is at least one of separator casting equipment, separator composite equipment, separator stretching equipment, separator layering equipment and separator slitting equipment. The waste edge collection device has been described in detail above and will not be repeated here.

[0055] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A scrap edge guide mechanism for a lithium battery separator, characterized by, include: Fixture; as well as A guide roller assembly is disposed on the fixed frame; the guide roller assembly includes a first guide roller, a second guide roller, a third guide roller, and a fourth guide roller, wherein the first guide roller and the second guide roller are arranged parallel to each other along a first direction, and the third guide roller and the fourth guide roller are arranged parallel to each other along a second direction, so as to form a guide space between the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller, the guide space being used to guide the waste edge through.

2. The lithium battery separator slitter edge guide of claim 1, wherein, The first direction and the second direction are perpendicular to each other.

3. The lithium battery separator slitter edge guide of claim 1, wherein, At least one of the first guide roller, the second guide roller, the third guide roller, and the fourth guide roller is movably connected to the fixed frame.

4. The lithium battery separator slitter edge guide of claim 1, wherein, The fixing frame includes a base plate and side plates disposed at both ends of the base plate. The first guide roller and the second guide roller are disposed parallel to each other between the two side plates. The third guide roller and the fourth guide roller are disposed parallel to each other on the base plate.

5. The lithium battery separator slitter edge guide of claim 4, wherein, Both side plates are provided with at least one first mounting hole along the first direction, and the first guide roller and / or the second guide roller are detachably connected to the first mounting hole; and / or, The base plate is provided with at least one second mounting hole along the second direction, and the third guide roller and / or the fourth guide roller are detachably connected to the second mounting hole.

6. A scrap edge collecting device for a lithium battery separator, characterized by, include: Base; A bracket, which is disposed on the base; A take-up roller, which is mounted on the support, is used to wind up and collect waste edges; A drive mechanism is mounted on the bracket, and the output end of the drive mechanism is connected to the take-up roller for driving the take-up roller to rotate. as well as The waste edge guiding mechanism as described in any one of claims 1-5, wherein the waste edge guiding mechanism is disposed upstream of the take-up roller and is used to guide the waste edge to the take-up roller.

7. The lithium battery separator slitter edge collection device of claim 6, wherein, The bracket is also equipped with a movable adjustment mechanism, which is connected to the waste edge guide mechanism and is used to drive the waste edge guide mechanism to move.

8. The lithium battery separator slitter edge collection device of claim 6, wherein, The waste edge collection device further includes a first baffle and a second baffle, which are used to clamp and install the take-up roller.

9. A lithium battery separator production apparatus characterized by, Includes the waste edge collection device as described in any one of claims 6-8.

10. The lithium battery separator production apparatus of claim 9, wherein, The diaphragm production equipment is at least one of the following: diaphragm casting equipment, diaphragm laminating equipment, diaphragm stretching equipment, diaphragm layering equipment, and diaphragm slitting equipment.

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