Current collector film rolling equipment

Abstract

The utility model relates to the technical field of lithium battery production equipment, and discloses current collector film rolling equipment, which comprises a rolling module and a particle detection module, the particle detection module comprises a first compression roller and a second compression roller, the first compression roller and the second compression roller are oppositely arranged, and the first compression roller and the second compression roller are oppositely arranged. A gap is reserved between the first pressing roller and the second pressing roller to form a roller gap, and a sensor used for measuring the height of the roller gap is arranged on one side of the roller gap; and the first compression roller and / or the second compression roller are / is movably arranged in the height direction of the roller gap. The device has the following technical effects that particle detection can be carried out on the film rolled by the rolling module, the condition that the uniformity of a pole piece coating is influenced by relatively large particles on the surface of the film is prevented, and the risk of short circuit of a battery is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production equipment, and in particular relates to a current collector film rolling device. Background Art

[0002] Composite current collectors are new current collector materials composed of polymer materials and metals. The structure of this material is similar to a "sandwich", with a base film (such as polymer materials such as PP, PET, PI, etc.) in the middle and two outer layers of copper or aluminum metal films. The composite current collector carries the positive and negative active materials, and also collects and transmits the current generated by the positive and negative active materials during the battery's charge and discharge process, thereby reducing the battery's internal resistance and improving the battery's coulombic efficiency, cycle stability, and rate performance. Replacing pure metal current collectors with composite current collectors can reduce material costs and reduce battery weight, thereby increasing battery energy density.

[0003] During the production process, composite current collector films (hereinafter referred to as films) undergo a rolling process, which aims to compress the films to a certain size. However, large particles may remain on the surface of the films after rolling. These large particles can affect the uniformity of the electrode coating, thereby affecting the electrochemical performance of the battery and potentially causing internal short circuits. Utility Model Content

[0004] In order to solve the above-mentioned shortcomings of the prior art, the present invention provides a current collector thin film rolling device. The technical effects to be achieved by the present invention are achieved through the following technical aspects:

[0005] A current collector film rolling device is used to roll the film, comprising:

[0006] A rolling module, used for rolling the film;

[0007] a particle detection module comprising a first pressing roller and a second pressing roller, wherein the first pressing roller and the second pressing roller are arranged opposite to each other with a gap between them to form a roller gap, and a sensor for measuring the height of the roller gap is provided on one side of the roller gap;

[0008] Wherein, the first pressing roller and / or the second pressing roller are movably arranged in the height direction of the roller gap.

[0009] In some embodiments, the particle detection module further includes a frame, the first pressing roller and the second pressing roller are arranged opposite to each other in the frame, the first pressing roller is movably arranged in the height direction of the roller gap, and the second pressing roller is fixedly arranged.

[0010] In some embodiments, the particle detection module further includes a first driving member, which is in transmission connection with the first pressing roller to drive the first pressing roller to approach or move away from the second pressing roller.

[0011] In some embodiments, a guiding member is further provided on one side of the machine frame close to the first pressing roller. The guiding member is arranged along the height direction of the roll gap, and the first pressing roller is movably connected to the guiding member.

[0012] In some embodiments, the particle detection module further includes a rotation driving member. A first bearing seat is arranged at the end of the first pressing roller, and a second bearing seat is arranged at the end of the second pressing roller. The rotation driving member is in transmission connection with the first pressing roller and the second pressing roller respectively through the first bearing seat and the second bearing seat to drive the first pressing roller and the second pressing roller to rotate.

[0013] In some embodiments, an adjusting assembly is arranged between the first bearing seat and the second bearing seat;

[0014] The adjusting assembly includes a second driving member, a first inclined block and a second inclined block. Both the first inclined block and the second inclined block include an inclined surface and a flat surface. The flat surface side of the first inclined block abuts against the first bearing seat, the flat surface side of the second inclined block abuts against the second bearing seat, and the inclined surfaces of the first inclined block and the second inclined block cooperate with each other;

[0015] The second driving member is in transmission connection with the second inclined block to drive the second inclined block to move, thereby adjusting the height of the roll gap.

[0016] In some embodiments, the roll pressing module includes a first roll pressing assembly and a second roll pressing assembly arranged in sequence along the film running direction;

[0017] The first roll pressing assembly includes two relatively arranged first rolling rollers, and the second roll pressing assembly includes two relatively arranged second rolling rollers. The roll diameter of the first rolling roller is larger than that of the second rolling roller.

[0018] In some embodiments, the particle detection module further includes a self-weight elimination mechanism. The self-weight elimination mechanism includes a first elastic member, which is arranged along the height direction of the roll gap on one side of the first pressing roller and is elastically connected to the first pressing roller.

[0019] In some embodiments, the self-weight elimination mechanism further includes a second elastic member and a connecting member. One end of the first elastic member is connected to the connecting member, the other end of the second elastic member is connected to the connecting member, and one side of the connecting member is connected to one end of the first pressing roller.

[0020] In some embodiments, the self-weight elimination mechanism further includes a mounting rod, and the first elastic member, the second elastic member, and the connecting member are sequentially sleeved in the mounting rod. One end of the first elastic member facing away from the connecting member abuts against one end of the mounting rod, and one end of the second elastic member facing away from the connecting member abuts against the other end of the mounting rod.

[0021] In summary, the present utility model has at least the following advantages:

[0022] By providing a particle detection module on one side of the rolling module, the present utility model can detect particles on the film after being rolled by the rolling module, prevent the situation that large particles on the film surface affect the coating uniformity of the electrode sheet, and reduce the risk of battery short circuit. Among them, the particle detection module is provided with a first pressing roller and a second pressing roller. When a film with large particles passes between the first pressing roller and the second pressing roller, it will lift the first pressing roller or the second pressing roller, causing the roll gap to change in the height direction. By detecting and analyzing this data through a sensor, it can be determined that there are large particles; and due to the self-weight of the first pressing roller and the second pressing roller, after the large particles pass through the roll gap, the first pressing roller and the second pressing roller will automatically reset under the action of their self-weight. This device has simple operation, high detection efficiency, simple structure, is easy to install, can detect various types of large particles, and only needs to change the relevant data of the roll gap, and has universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a cross-sectional view of the current collector film rolling equipment in the embodiment of the present application.

[0024] Figure 2 It is a schematic structural diagram of the particle detection module in the embodiment of the present application.

[0025] Figure 3 It is a side view of the particle detection module in the embodiment of the present application.

[0026] Figure 4 It is a schematic structural diagram of the adjustment component in the embodiment of the present application.

[0027] Figure 5 It is a schematic structural diagram of the self-weight elimination mechanism on one side of the particle detection module in the embodiment of the present application.

[0028] Figure 6 It is a schematic structural diagram of the self-weight elimination mechanism in the embodiment of the present application.

[0029] Reference numerals in the drawings:

[0030] 1. Rolling module; 11. First rolling roller; 12. Second rolling roller;

[0031] 2. Particle detection module; 21. First pressure roller; 22. Second pressure roller; 23. Roll gap; 24. Sensor; 25. Frame; 26. First driving member; 27. Guide member; 28. Rotary driving member; 29. First bearing seat; 30. Second bearing seat; 31. Adjusting assembly; 311. Second driving member; 312. First inclined block; 313. Second inclined block; 32. Self-weight elimination mechanism; 321. First elastic member; 322. Second elastic member; 323. Connecting member. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are some but not all of the embodiments of the present utility model.

[0033] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] Embodiment 1:

[0035] Please refer to the attached Figure 1-3 The current collector film rolling equipment of the present utility model is used for rolling a film, and includes a rolling module 1 and a particle detection module 2 arranged in sequence along the film running direction.

[0036] Among them, the rolling module 1 is mainly used for rolling the particles on the film to prevent large particles from entering the next process. Exemplarily, the rolling module 1 may include two relatively arranged rolling rollers, and a gap is left between the rolling rollers to form a rolling channel. Hydraulic rods, oil cylinders, etc. are arranged on the two rolling rollers to provide a constant pressure for the rolling rollers. Preferably, during use, assuming the thickness of the film is A and the height of the particles on the film is B, the distance of the roll gap between the two rolling rollers is adjusted to C. When the film passes through the roll gap and A + B is greater than C, the rolling rollers roll the particles on the film.

[0037] The particle detection module 2 includes a first pressure roller 21 and a second pressure roller 22. The first pressure roller 21 and the second pressure roller 22 are relatively arranged, and a gap is left between the first pressure roller 21 and the second pressure roller 22 to form a roll gap 23. A sensor 24 for measuring the height of the roll gap 23 is arranged on one side of the roll gap 23. The first pressure roller 21 and / or the second pressure roller 22 are movably arranged in the height direction of the roll gap 23.

[0038] Specifically, the particle detection module 2 is used to detect large particles on the film. It is arranged on one side of the rolling module 1 to detect large particles on the film after being rolled by the rolling module 1. When large particles are detected on the surface of the film, the whole machine decelerates and stops to remove the large particles on the film. The particle detection module 2 specifically includes a first pressure roller 21 and a second pressure roller 22. There is a roll gap 23 between the first pressure roller 21 and the second pressure roller 22. The film rolled by the rolling module 1 enters the roll gap 23.

[0039] The setting method can be that both the first pressure roller 21 and the second pressure roller 22 are movably arranged in the height direction of the roll gap 23; or the first pressure roller 21 is fixed and the second pressure roller 22 is movably arranged in the height direction of the roll gap 23; or the second pressure roller 22 is fixed and the first pressure roller 21 is movably arranged in the height direction of the roll gap 23. This embodiment does not limit this. The way of movable setting can be through a sliding roller, a sliding groove, etc., so that the first pressure roller 21 or the second pressure roller 22 can move relatively.

[0040] Taking the second pressure roller 22 being fixed and the first pressure roller 21 being movably arranged in the height direction of the roll gap 23 as an example, the height direction of the roll gap 23 is the direction in which the first pressure roller 21 approaches or moves away from the second pressure roller 22. By adjusting the height of the roll gap 23, the distance between the two rollers can be adjusted. When the height of the roll gap 23 is adjusted, at this time, the film enters the roll gap 23 to run the tape. When the film has large particles, it will lift the first pressure roller 21, and the height of the roll gap 23 changes. One side of the roll gap 23 is provided with a sensor 24. This sensor 24 is used to detect the height of the roll gap 23 and feedback the detected data at the same time. The sensor 24 can be a displacement sensor 24, an infrared sensor 24, etc.

[0041] During the use process, first adjust the measurement data of the particle detection module 2. Assume that the uniform thickness of the film is X, and the surface particle height exceeding A is a large particle. Adjust the height of the roll gap 23 between the first pressure roller 21 and the second pressure roller 22 to X plus A. Subsequently, the rolling module 1 rolls the film. The film rolled by the rolling module 1 enters the roll gap 23 in the particle detection module 2. When there are large particles on the film, passing through the roll gap 23 will lift the first pressure roller 21 or the second pressure roller 22. At this time, the height of the roll gap 23 changes. The sensor 24 detects the height of the roll gap 23 and feeds back the data. The equipment stops, and the large particles on the film are scraped off.

[0042] This embodiment, by providing a particle detection module 2 on one side of the rolling module 1, can detect particles on the film after being rolled by the rolling module 1, preventing the occurrence of large particles on the film surface that affect the uniformity of the electrode coating, thereby reducing the risk of battery short circuits. The particle detection module 2 is provided with a first pressing roller 21 and a second pressing roller 22. When a film containing large particles passes through the first and second pressing rollers 21 and 22, the first and second pressing rollers 21 and 22 are lifted, causing the data related to the roller gap 23 to change. The sensor 24 detects and analyzes this data, and the presence of large particles can be determined. Furthermore, due to the deadweight of the first and second pressing rollers 21 and 22, when large particles pass through the roller gap 23, the first and second pressing rollers 21 and 22 automatically reset under the action of their deadweight. This device is simple to operate, has high detection efficiency, a simple structure, and is easy to install. It can detect a variety of large particles by simply changing the data related to the roller gap 23, and has good universality.

[0043] Example 2

[0044] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the current collector film rolling device of the utility model, see Figures 2 to 4 .

[0045] The particle detection module 2 also includes a frame 25, within which a first pressure roller 21 and a second pressure roller 22 are positioned relative to each other. The first pressure roller 21 is movable in the height direction of the roller gap 23, while the second pressure roller 22 is fixed. The second pressure roller 22 is immovable in the height direction of the roller gap 23, while the first pressure roller 21 is movable. When large particles are detected on the film, the first pressure roller 21 is lifted. This configuration simplifies the structural design and control logic, improving detection efficiency.

[0046] In some embodiments, the particle detection module 2 further includes a first driving member 26, which is in transmission connection with the first pressing roller 21 to drive the first pressing roller 21 toward or away from the second pressing roller 22. Specifically, the first driving member 26 can be a cylinder, a combination of a motor and a screw guide rail, or the like. Preferably, the first driving member 26 is a cylinder disposed on the frame 25, with its driving end in transmission connection with the first pressing roller 21, driving the first pressing roller 21 to open and close to facilitate adjustment of the roller gap 23.

[0047] During use, the first driving member 26 drives the first pressing roller 21 to move and adjusts the position of the roller gap 23. At this time, when the film is running, when there are large particles, the large particles will overcome the gravity of the first pressing roller 21 and the pressure of the cylinder, thereby lifting the first pressing roller 21 and changing the size of the roller gap 23.

[0048] In some embodiments, a guide member 27 is further provided on a side of the frame 25 near the first pressing roller 21. The guide member 27 is provided along the height direction of the roller gap 23, and the first pressing roller 21 is movably connected to the guide member 27. The guide member 27 is a guide rail, and the first pressing roller 21 is movably connected to the guide rail and can move along the guide rail. The guide rail is provided along the height direction of the roller gap 23, so that when large particles lift the first pressing roller 21, it moves along the track, facilitating the resetting of the first pressing roller 21.

[0049] In some embodiments, the particle detection module 2 also includes a rotating drive member 28, a first bearing seat 29 is provided at the end of the first pressure roller 21, and a second bearing seat 30 is provided at the end of the second pressure roller 22. The rotating drive member 28 is respectively connected to the first pressure roller 21 and the second pressure roller 22 through the first bearing seat 29 and the second bearing seat 30 to drive the first pressure roller 21 and the second pressure roller 22 to rotate.

[0050] Among them, the first bearing seats 29 are arranged at both ends of the first pressure roller 21, and the second bearing seats 30 are arranged at both ends of the second pressure roller 22. By connecting the first bearing seats 29 to the guide members 27 on the frame 25, the first pressure roller 21 can be guided. By fixing the second bearing seats 30 on the frame 25, the second pressure roller 22 can be fixed. The rotary drive member 28 can be a motor, a steering gear, etc., and the rotary drive member 28 is connected to the first and second pressure rollers 21, 22 through the first and second bearing seats 29, 30, driving the first and second pressure rollers 21, 22 to rotate.

[0051] The purpose of providing a rotary drive 28 to rotate the first and second pressure rollers 21 and 22 is to prevent large particles on the film from generating friction when the film is traveling at high speeds and the first pressure roller 21 is stationary. This force can drive the first pressure roller 21 to rotate or cause friction on the first pressure roller 21, potentially affecting film quality. If the first pressure roller 21 moves synchronously with the film's travel speed, large particles will only generate an upward force, reducing the risk of film breakage. The same applies to the second pressure roller 22.

[0052] In some embodiments, an adjustment assembly 31 is provided between the first bearing seat 29 and the second bearing seat 30; the adjustment assembly 31 includes a second driving member 311, a first inclined block 312 and a second inclined block 313, the first inclined block 312 and the second inclined block 313 both include inclined surfaces and planes, one side of the plane of the first inclined block 312 abuts against the first bearing seat 29, and one side of the plane of the second inclined block 313 abuts against the second bearing seat 30, and the inclined surfaces of the first inclined block 312 and the second inclined block 313 cooperate with each other; the second driving member 311 is transmission-connected to the second inclined block 313 to drive the second inclined block 313 to move, thereby adjusting the height of the roller gap 23.

[0053] Specifically, the adjusting component 31 is used to finely adjust the roll gap 23 to make subsequent measurements more accurate. It includes a first inclined block 312 and a second inclined block 313. Both the first inclined block 312 and the second inclined block 313 have an inclined surface and a flat surface, and the inclination of the inclined surface is set according to the actual situation. The flat surface of the first inclined block 312 is arranged on the side of the first bearing block 29 facing the second bearing block 30, and the flat surface of the second inclined block 313 is arranged on the side of the second bearing block 30 facing the first bearing block 29. At this time, the first inclined surface and the second inclined surface are arranged opposite to each other. The second driving member 311 can be a cylinder, a combination of a motor and a screw rod guide rail, etc. By arranging the second inclined block 313 on the movable end of the second driving member 311, the second inclined block 313 is moved. During use, the first inclined block 312 is fixed and the second inclined block 313 moves. At this time, under the action of the inclined surface, the first bearing block 29 is driven to reciprocate along the height direction of the roll gap 23.

[0054] Preferably, a first guiding block and a second guiding block are arranged on the side of the second bearing block 30 facing the first bearing block 29. The first guiding block and the second guiding block are arranged opposite to each other, and guiding grooves are formed on the opposite surfaces of the first guiding block and the second guiding block. The second inclined block 313 passes through the guiding grooves. It can guide the moving direction of the second inclined block 313 and improve the accuracy of adjustment.

[0055] Embodiment 3

[0056] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the collector film rolling equipment of the present utility model. Please refer to Figure 5 and Figure 6 .

[0057] In some embodiments, the particle detection module 2 further includes a self-weight elimination mechanism 32. The self-weight elimination mechanism 32 includes a first elastic member 321. The first elastic member 321 is arranged along the height direction of the roll gap 23 on one side of the first pressing roller 21 and is elastically connected to the first pressing roller 21.

[0058] The purpose of setting the self-weight elimination mechanism 32 is that for some materials sensitive to pressure, they cannot be subjected to pressure. At this time, it is necessary to eliminate the self-weight of the first pressing roller 21 so as to stably measure the large particles on such materials.

[0059] Specifically, the self-weight elimination mechanism 32 includes a first elastic member 321. The first elastic member 321 can be a spring. One end of the spring is fixedly connected, and the other end is elastically connected to the first pressing roller 21. First elastic members 321 are arranged at both ends of the first pressing roller 21. Through the elastic force of the spring, the gravity of the pressing roller can be offset. At this time, when the pressure-sensitive material passes through the particle detection module 2, the large particles will lift the first pressing roller 21.

[0060] Further, the self-weight elimination mechanism 32 further includes a second elastic member 322 and a connecting member. One end of the first elastic member 321 is connected to one end of the connecting member, the other end of the second elastic member 322 is connected to the other end of the connecting member, and one side of the connecting member is connected to one end of the first pressing roller 21. Among them, the first elastic member 321 and the second elastic member 322 can be high-load springs, and the connecting member can be a bearing, etc. This setting can better connect the first pressing roller 21.

[0061] Further, it further includes a mounting rod. The first elastic member 321, the second elastic member 322, and the connecting member are sequentially sleeved in the mounting rod, and one end of the first elastic member 321 facing away from the connecting member abuts against one end of the mounting rod, and one end of the second elastic member 322 facing away from the connecting member abuts against the other end of the mounting rod. During installation, the first elastic member 321 is first sleeved on the mounting rod, and then the connecting member and the second elastic member 322 are sleeved. When the connecting member is connected to the end of the first pressing roller 21, the first pressing roller 21 will compress the first spring and stretch the second spring, and the gravity of the first pressing roller 21 is offset by the elastic force.

[0062] Embodiment 4

[0063] The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the collector film rolling equipment of the present utility model. Please refer to Figure 1 .

[0064] The rolling module 1 includes a first rolling assembly and a second rolling assembly arranged in sequence along the film running direction; the first rolling assembly includes two relatively arranged first rollers 11, the second rolling assembly includes two relatively arranged second rollers 12, and the roller diameter of the first roller 11 is greater than that of the second roller 12. Among them, the first roller 11 is a large roller, and the second roller 12 is a small roller. An oil cylinder is arranged at the end of the first roller 11 to provide a constant pressure for the first rolling assembly. Preferably, the roller diameter of the first roller 11 is 3-4 times that of the second roller 12. Through this setting, the first rolling assembly rolls the film to the required standard size, and the second rolling assembly performs secondary rolling on the film to prevent the film from rebounding. It can be understood that both the first rolling assembly and the second rolling assembly can include a plurality of relatively arranged first rollers 11 and second rollers 12, and this embodiment does not limit this.

[0065] The rolling module 1 may further include a scraper assembly. The scraper assembly is arranged on one side of the first roller 11 and the second roller 12. The scraper assembly includes a scraper, which can scrape the first roller 11 and the second roller 12.

[0066] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0067] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0068] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the component is required to be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but may be slightly inclined.

[0069] In the present utility model, unless otherwise clearly defined and limited, the first feature being above or below the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features between them. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0070] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included within the spirit and scope of the appended claims.

Claims

1. A current collector film rolling device for rolling a film, characterized in that, Including, arranged in sequence along the tape running direction of the film: A rolling module for rolling the film; A particle detection module, including a first pressing roller and a second pressing roller, the first pressing roller and the second pressing roller are arranged opposite to each other, and a gap is left between the first pressing roller and the second pressing roller to form a roll gap, and a sensor for measuring the height of the roll gap is arranged on one side of the roll gap; Wherein, the first pressing roller and / or the second pressing roller are movably arranged in the height direction of the roll gap.

2. The collector film rolling equipment according to claim 1, characterized in that The particle detection module further includes a frame, the first pressing roller and the second pressing roller are arranged opposite to each other in the frame, the first pressing roller is movably arranged in the height direction of the roll gap, and the second pressing roller is fixedly arranged.

3. The collector film rolling equipment according to claim 2, wherein The particle detection module further includes a first driving member, the first driving member is in transmission connection with the first pressing roller to drive the first pressing roller to approach or move away from the second pressing roller.

4. The current collector film rolling equipment according to claim 3, characterized in that, A guiding member is further arranged on one side of the frame close to the first pressing roller, the guiding member is arranged along the height direction of the roll gap, and the first pressing roller is movably connected with the guiding member.

5. The collector film rolling equipment according to claim 1, characterized in that, The particle detection module further includes a rotation driving member, a first bearing seat is arranged at the end of the first pressing roller, a second bearing seat is arranged at the end of the second pressing roller, and the rotation driving member is in transmission connection with the first pressing roller and the second pressing roller respectively through the first bearing seat and the second bearing seat to drive the first pressing roller and the second pressing roller to rotate.

6. The current collector film rolling device according to claim 5, characterized in that, An adjusting assembly is arranged between the first bearing seat and the second bearing seat; The adjusting assembly includes a second driving member, a first inclined block and a second inclined block, both the first inclined block and the second inclined block include an inclined surface and a flat surface, the flat surface side of the first inclined block abuts against the first bearing seat, the flat surface side of the second inclined block abuts against the second bearing seat, and the inclined surfaces of the first inclined block and the second inclined block are matched with each other; The second driving member is in transmission connection with the second inclined block to drive the second inclined block to move, thereby adjusting the height of the roll gap.

7. The current collector film rolling device according to claim 1, wherein, The rolling module includes a first rolling assembly and a second rolling assembly arranged in sequence along the tape running direction of the film; The first rolling assembly includes two relatively arranged first rolling rollers, the second rolling assembly includes two relatively arranged second rolling rollers, and the roll diameter of the first rolling roller is larger than that of the second rolling roller.

8. The collector film rolling equipment according to any one of claims 1-2, characterized in that, The particle detection module further includes a self-weight elimination mechanism, the self-weight elimination mechanism includes a first elastic member, the first elastic member is arranged along the height direction of the roll gap on one side of the first pressing roller and is elastically connected with the first pressing roller.

9. The current collector film rolling equipment according to claim 8, characterized in that The self-weight elimination mechanism further includes a second elastic member and a connecting member, the first elastic member is connected with one end of the connecting member, the second elastic member is connected with the other end of the connecting member, and one side of the connecting member is connected with one end of the first pressing roller.

10. The current collector film rolling device according to claim 9, characterized in that, The self-weight elimination mechanism further includes a mounting rod, the first elastic member, the second elastic member and the connecting member are sequentially sleeved in the mounting rod, and one end of the first elastic member facing away from the connecting member abuts against one end of the mounting rod, and one end of the second elastic member facing away from the connecting member abuts against the other end of the mounting rod.

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