A steel belt pre-film forming device and a battery pole piece production system

Abstract

The utility model relates to battery pole piece production technical field, concretely relates to a kind of steel strip pre-film device and battery pole piece production system.A kind of steel strip pre-film device, including vertical plate, with the first steel strip film forming component and the second steel strip film forming component of symmetrical arrangement, the first steel strip film forming component includes: first traction roller, is located on the vertical plate;First gap adjusting roller, is located on the vertical plate, the roller surface of the first traction roller and the roller surface of the first gap adjusting roller are respectively adapted to contact first closed steel strip;First deviation rectifying roller, is located on the vertical plate, the roller surface of the first deviation rectifying roller is adapted to contact the first closed steel strip, the first deviation rectifying roller is driven and is adapted to rectify the first closed steel strip.The utility model provides a kind of steel strip pre-film device and battery pole piece production system, to solve the problem that steel strip deviates, usually only through manual adjustment by artificial, there is the problem of influence to production continuity and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery electrode production technology, specifically to a steel strip pre-film forming device and a battery electrode production system. Background Technology

[0002] In the dry-process manufacturing of battery electrodes, the steel strip pre-film forming device plays a crucial role. Traditional steel strip pre-film forming devices face numerous problems in the process of extruding powder into films.

[0003] Firstly, considering the inherent characteristics of the steel strip, when the steel strip reaches a certain width, such as around 550mm, due to limitations in current welding technology, it is difficult to ensure that the ring diameters on both sides of the steel strip are completely consistent when welding it into a ring structure. This inconsistency in ring diameter can lead to instability in the steel strip during subsequent movement.

[0004] Secondly, during the pre-film formation process, the steel belt needs to move continuously and compress the powder to form a film. However, due to the difference in the annular diameter on both sides of the steel belt, it will inevitably shift to one side during operation. Once the steel belt shifts, the distribution of powder on it will be uneven. For example, when the steel belt shifts to the left, the powder accumulation thickness on the left side will increase, while the powder accumulation thickness on the right side will decrease accordingly. This uneven powder distribution directly affects the quality of the film. Inconsistent film thickness will cause thickness differences in the subsequently manufactured dry-process electrodes, thus affecting the performance consistency of the battery. For example, thicker sections may lead to increased internal resistance, while thinner sections may affect the battery capacity.

[0005] Existing steel strip preforming equipment lacks effective solutions to the problem of steel strip misalignment caused by inconsistent ring diameters after wide steel strip welding. It can usually only be adjusted manually, which affects production continuity and efficiency. Utility Model Content

[0006] In view of this, the present invention provides a steel strip pre-film forming device and a battery electrode production system to solve the problem that existing steel strip pre-film forming devices can only be manually adjusted when faced with the problem of steel strip misalignment caused by inconsistent ring diameters after wide steel strip welding, which affects the continuity and efficiency of production.

[0007] In a first aspect, this utility model provides a steel strip pre-film forming device, including a vertical plate, and having a first steel strip film forming assembly and a second steel strip film forming assembly symmetrically arranged, wherein the first steel strip film forming assembly includes:

[0008] The first traction roller is disposed on the vertical plate;

[0009] A first gap adjusting roller is disposed on the vertical plate, and the roller surface of the first traction roller and the roller surface of the first gap adjusting roller are respectively adapted to contact the first closed steel strip;

[0010] A first correction roller is disposed on the vertical plate. The roller surface of the first correction roller is adapted to contact the first closed steel strip. The first correction roller is driven to correct the deviation of the first closed steel strip.

[0011] The first straightening roller corrects the deviation of the first closed steel strip, ensuring its normal operation, improving the continuity and stability of production, and reducing equipment maintenance costs.

[0012] In one optional embodiment, the first steel strip film forming assembly further includes a first correction mounting base, a first slide rail, and a first correction power component. One end of the first correction roller passes through the vertical plate and is connected to the first correction mounting base. The first slide rail is fixedly mounted on the vertical plate and is slidably connected to the first correction mounting base. The adjusting end of the first correction mounting base is provided with a first oblong hole, and the eccentric shaft of the first correction power component is adapted to the first oblong hole.

[0013] In one optional embodiment, the first steel strip film-forming assembly further includes a first tensioning roller, one end of which is connected to the vertical plate. The end of the first tensioning roller away from the vertical plate is provided with a first vertical side plate. The first vertical side plate is provided with a first correction sensor, which is U-shaped. A portion of the first closed steel strip is disposed through the U-shaped space.

[0014] In one alternative embodiment, the first steel strip film-forming assembly further includes a first guide roller, the roller surface of which is adapted to contact the first closed steel strip.

[0015] In one optional embodiment, the second steel strip film-forming assembly includes a second traction roller, which is set at the same height as the first traction roller. The second central axis of the second traction roller and the first central axis of the first traction roller form a horizontal plane, and the plane passing through the midline between the first central axis and the second central axis and perpendicular to the horizontal plane is a vertical symmetry plane.

[0016] In one optional embodiment, the second steel strip film-forming assembly further includes a second correction roller, a second gap adjusting roller, and a second guide roller. The first correction roller and the second correction roller are symmetrically arranged on both sides of the vertical symmetry plane. The first gap adjusting roller and the second gap adjusting roller are symmetrically arranged on both sides of the vertical symmetry plane. The first guide roller and the second guide roller are symmetrically arranged on both sides of the vertical symmetry plane. The roller surfaces of the second traction roller, the second correction roller, the second guide roller, and the second gap adjusting roller are adapted to have a second closed steel strip. The first closed steel strip and the second closed steel strip move in opposite directions.

[0017] In one optional embodiment, the assembly further includes an inclined support plate group. The first steel strip film forming assembly further includes a first inclined support plate, and the second steel strip film forming assembly further includes a second inclined support plate. The first inclined support plate is provided between the first traction roller and the first passing roller, and the second inclined support plate is provided between the second traction roller and the second passing roller. The first inclined support plate and the second inclined support plate are symmetrically arranged on both sides of the vertical symmetry plane.

[0018] In one optional embodiment, the first steel strip film-forming assembly further includes a third inclined support plate, and the second steel strip film-forming assembly further includes a fourth inclined support plate. The third inclined support plate is disposed between the first guide roller and the first gap adjusting roller, and the fourth inclined support plate is disposed between the second guide roller and the second gap adjusting roller. The third inclined support plate and the fourth inclined support plate are symmetrically disposed on both sides of the vertical symmetry plane, and the opening formed by the third inclined support plate and the fourth inclined support plate gradually decreases from the first guide roller toward the first gap adjusting roller.

[0019] In an optional embodiment, a vertical sealing plate assembly is further included. The vertical sealing plate assembly includes a first vertical sealing plate and a second vertical sealing plate. The first vertical sealing plate is disposed on the side of the first traction roller away from the vertical plate. The first vertical sealing plate and the second vertical sealing plate are disposed on the same side. The first vertical sealing plate and the vertical plate cooperate to seal the two sides of the first inclined support plate and the second inclined support plate, respectively. The second vertical sealing plate and the vertical plate cooperate to seal the two sides of the third inclined support plate and the fourth inclined support plate, respectively.

[0020] Secondly, this utility model also provides a battery electrode production system, including the aforementioned steel strip pre-film forming device.

[0021] The steel strip pre-film forming device provided by this utility model has the following advantages: (1) Compared with the traditional manual adjustment, the first closed steel strip is corrected by the first correction roller, which ensures the normal operation of the first closed steel strip, improves the continuity and stability of production, and can also reduce the maintenance cost of the equipment; (2) The first correction sensor and the second correction sensor realize the real-time monitoring of the movement trajectory of the closed steel strip. Once the trajectory deviation is detected, it is immediately fed back to the controller, thus achieving the purpose of dynamic correction; (3) The setting of the eccentric shaft and the oval hole of the correction power component of the first correction roller or the second correction roller realizes the fine adjustment of the steel strip position along the vertical plate height direction of the closed steel strip correction roller; (4) The "U"-shaped design of the first correction sensor and the second correction sensor is used to detect the edge of the closed steel strip correction roller without affecting the movement of the closed steel strip correction roller. The connection between the two and the controller realizes real-time monitoring and dynamic correction. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the steel strip pre-film forming device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the steel strip pre-film forming device according to an embodiment of the present invention after the vertical sealing plate assembly and the vertical side plate assembly have been removed;

[0025] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0026] Figure 4 This is a schematic diagram of the first corrective roller assembly according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the first alignment roller assembly from another angle according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Vertical plate; 101. First vertical hole; 2. First steel strip film forming assembly; 201. First traction roller; 202. First traction power component; 203. First gap adjusting roller; 204. First guide roller; 205. First correction roller; 206. First correction mounting base; 2061. First oblong hole; 207. First slide rail; 208. First correction power component; 2081. Eccentric shaft; 209. First tension roller; 210. First cross brace; 211. First horizontal adjustment component; 212. Second horizontal adjustment component; 213. First correction sensor; 214. First tilting element. Support plate; 215, third inclined support plate; 3, second steel strip film forming assembly; 301, second traction roller; 302, second traction power component; 303, second gap adjusting roller; 304, second guide roller; 305, second correction roller; 306, second tension roller; 307, second cross brace; 308, second inclined support plate; 309, fourth inclined support plate; 4, vertical sealing plate assembly; 401, first vertical sealing plate; 402, second vertical sealing plate; 5, vertical side plate assembly; 501, first vertical side plate; 502, second vertical side plate; 6, first closed steel strip; 7, second closed steel strip. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0031] According to an embodiment of the present invention, a steel strip pre-film forming device is provided, comprising a vertical plate 1, having a first steel strip film forming assembly 2 and a second steel strip film forming assembly 3 symmetrically arranged. The first steel strip film forming assembly 2 includes: a first traction roller 201 disposed on the vertical plate 1; a first gap adjusting roller 203 disposed on the vertical plate 1, wherein the roller surface of the first traction roller 201 and the roller surface of the first gap adjusting roller 203 are respectively adapted to contact a first closed steel strip 6; and a first correction roller 205 disposed on the vertical plate 1, wherein the roller surface of the first correction roller 205 is adapted to contact the first closed steel strip 6, and the first correction roller 205 is driven to correct the first closed steel strip 6.

[0032] Compared to traditional manual adjustments, the first closed steel strip 6 is corrected by the first straightening roller 205, ensuring its normal operation, improving production continuity and stability, and reducing equipment maintenance costs. In this embodiment, the closed steel strip is a ring-shaped closed steel strip.

[0033] In one embodiment, such as Figure 2 , Figure 4 and Figure 5 As shown, the first steel strip film-forming assembly 2 also includes a first correction mounting base 206, a first slide rail 207, and a first correction power component 208. One end of the first correction roller 205 passes through the vertical plate 1 and is connected to the first correction mounting base 206. The first slide rail 207 is fixedly mounted on the vertical plate 1 and is slidably connected to the first correction mounting base 206. The adjusting end of the first correction mounting base 206 is provided with a first oblong hole 2061, and the eccentric shaft 2081 of the first correction power component 208 is adapted to the first oblong hole 2061. Specifically, the first correction power component 208 is a servo motor, the eccentric shaft 2081 is eccentrically positioned, and the first correction mounting base 206, the first slide rail 207, and the first correction power component 208 are arranged on the same side. In this embodiment, as shown... Figure 1 As shown, the vertical plate 1 has a first vertical hole 101. The first slide rail 207 and the first correction power member 208 remain stationary. The end of the first correction roller 205 passes through the first vertical hole 101 and connects to the first correction mounting base 206. The eccentric shaft 2081 of the first correction power member 208 drives the first correction mounting base 206 along the height direction of the vertical plate 1. Figure 2 The movement is carried out along the Z-axis direction to achieve fine-tuning of the trajectory of the first closed steel belt 6, thereby achieving dynamic correction.

[0034] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the first steel strip film-forming assembly 2 also includes a first tensioning roller 209. One end of the first tensioning roller 209 is connected to the vertical plate 1. The end of the first tensioning roller 209 facing away from the vertical plate 1 is provided with a first vertical side plate 501. A first correction sensor 213 is provided on the first vertical side plate 501. The first correction sensor 213 is U-shaped, and a portion of the first closed steel strip 6 passes through the U-shaped space. The roller surface of the first tensioning roller 209 contacts the first closed steel strip 6, providing tension to the first closed steel strip 6. The first correction sensor 213 senses the shape of the first closed steel strip 6 and cooperates with the first correction power component 208 to fine-tune the movement of the first closed steel strip 6. To adjust the first tensioning roller 209, as... Figure 3As shown, one end of the first tensioning roller 209 is provided with a first horizontal adjusting member 211, and the other end of the first tensioning roller 209 is provided with a second horizontal adjusting member 212. The first horizontal adjusting member 211 is connected to the vertical plate 1, and the second horizontal adjusting member 212 is connected to the first vertical side plate 501. The first horizontal adjusting member 211 and the second horizontal adjusting member 212 cooperate to make the first tensioning roller 209 move horizontally (…). Figure 2 Regarding the X-axis movement, it should be noted that there is no connection between the second horizontal adjustment component 212 and the first correction sensor 213.

[0035] In one embodiment, such as Figure 1 , Figure 2 As shown, the first steel strip film-forming assembly 2 further includes a first guide roller 204, the roller surface of which contacts the first closed steel strip 6. In this embodiment, as... Figure 1 , Figure 2 and Figure 3 As shown, along the height direction of vertical plate 1 ( Figure 2 In the Z-axis direction, the first traction roller 201 is located at the top and the first gap adjusting roller 203 is located at the bottom. From the first traction roller 201 toward the first gap adjusting roller 203, the first tension roller 209, the first guide roller 204, and the first correction roller 205 are arranged in sequence. The first guide roller 204 and the first correction roller 205 are located on both sides of the plane formed by the first traction roller 201 and the first gap adjusting roller 203, respectively, to form an irregular polygon to support and adjust the first closed steel strip 6.

[0036] In one embodiment, such as Figure 1 , Figure 2 As shown, the second steel strip film-forming assembly 3 also includes a second traction roller 301. The second traction roller 301 and the first traction roller 201 are set at the same height. The second central axis of the second traction roller 301 and the first central axis of the first traction roller 201 form a horizontal plane. The plane passing through the midline of the first central axis and the second central axis and perpendicular to the horizontal plane is a vertical symmetry plane (with...). Figure 2 The Z-axis is parallel to each other, so that the first traction roller 201 and the second traction roller 301 are arranged symmetrically with the vertical symmetry plane as the symmetry plane, thus saving the space of the whole device.

[0037] In one embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, the second steel strip film-forming assembly 3 further includes a second alignment roller 305, a second gap adjusting roller 303, and a second guide roller 304. The first alignment roller 205 and the second alignment roller 305 are symmetrically arranged on both sides of a vertical plane of symmetry. The first gap adjusting roller 203 and the second gap adjusting roller 303 are symmetrically arranged on both sides of a vertical plane of symmetry. The first guide roller 204 and the second guide roller 304 are symmetrically arranged on both sides of a vertical plane of symmetry. A second closed steel strip 7 is suitable for being provided on the roller surfaces of the second traction roller 301, the second alignment roller 305, the second guide roller 304, and the second gap adjusting roller 303. The first closed steel strip 6 and the second closed steel strip 7 move in opposite directions. The above arrangement ensures that the first alignment roller 205 and the second alignment roller 305 are symmetrically arranged, the first guide roller 204 and the second guide roller 304 are symmetrically arranged, and the first gap adjusting roller 203 and the second gap adjusting roller 303 are symmetrically arranged. It should be noted that in this embodiment, the first correction roller 205 and the second correction roller 305 have the same specifications and dimensions, the first guide roller 204 and the second guide roller 304 have the same specifications and dimensions, and the first gap adjusting roller 203 and the second gap adjusting roller 303 have the same specifications and dimensions.

[0038] In this embodiment, as Figure 1 , Figure 2 As shown, the second steel strip film-forming assembly 3 also includes a second correction mounting base, a second slide rail, and a second correction power component. The mounting end of the second correction roller 305 passes through the vertical plate 1 and connects to the second correction mounting base. The second slide rail is fixedly mounted on the vertical plate 1 and slidably connected to the second correction mounting base. The adjusting end of the second correction mounting base is provided with a second oblong hole. The eccentric shaft 2081 of the second correction power component is adapted to the second oblong hole. The second correction mounting base, the second slide rail, and the second correction power component are arranged on the same side. Specifically, the first correction power component 208 is a servo motor, and the eccentric shaft 2081 is eccentrically positioned. In this embodiment, as... Figure 1 As shown, the vertical plate 1 has a second vertical hole, the second slide rail and the second correction power component remain stationary, and the mounting end of the first correction roller 205 passes through the second vertical hole and connects to the second correction mounting seat. The eccentric shaft 2081 of the second correction power component drives the second correction mounting seat along the height direction of the vertical plate 1. Figure 2 The first correction roller 205 and the second correction roller 305 have the same dimensions, as do the first slide rail 207 and the second slide rail, the first correction mounting base 206 and the second correction mounting base, and the first correction power component 208 and the second correction power component. The first correction roller 205 moves along the Z-axis direction to fine-tune the trajectory of the second closed steel belt 7, achieving dynamic correction. It should be noted that in this embodiment, the first correction roller 205 and the second correction roller 305 have the same dimensions, the first slide rail 207 and the second slide rail have the same dimensions, the first correction mounting base 206 and the second correction mounting base have the same dimensions, and the first correction power component 208 and the second correction power component have the same dimensions.

[0039] In this embodiment, as Figure 2As shown, the first steel strip film-forming assembly 2 further includes a first traction power component 202, and the second steel strip film-forming assembly 3 further includes a second traction power component 302. The first traction power component 202 is connected to the first traction roller 201, and the first traction power component 202 and the first traction roller 201 are respectively located on both sides of the vertical plate 1. The second traction power component 302 is connected to the second traction roller 301, and the second traction power component 302 and the second traction roller 301 are respectively located on both sides of the vertical plate 1. Specifically, the first traction power component 202 and the second traction power component 302 are servo motors of the same specifications.

[0040] In this embodiment, as Figure 1 , Figure 2 As shown, the second steel strip film-forming assembly 3 also includes a second tension roller 306. One end of the second tension roller 306 is connected to the vertical plate 1, and the end of the second tension roller 306 away from the vertical plate 1 is provided with a second vertical side plate 502. A second correction sensor is provided on the second vertical side plate 502. The second correction sensor is U-shaped, and a portion of the second closed steel strip 7 passes through the U-shaped space. To adjust the second tension roller 306, as... Figure 3 As shown, one end of the second tension roller 306 is provided with a third horizontal adjusting member, and the other end of the second tension roller 306 is provided with a fourth horizontal adjusting member. The third horizontal adjusting member is connected to the vertical plate 1, and the fourth horizontal adjusting member is connected to the second vertical side plate 502. The third and fourth horizontal adjusting members cooperate to make the second tension roller 306 move horizontally (…). Figure 2 The X-axis movement is described. In this embodiment, the first traction roller 201 and the second traction roller 301 have the same dimensions, the first tension roller 209 and the second tension roller 306 have the same dimensions, and the first guide roller 204 and the second guide roller 304 have the same dimensions.

[0041] In this embodiment, as Figure 1 , Figure 2 As shown, the second steel strip film forming assembly 3 also includes a first cross brace 210 and a second cross brace 307. The roller surface of the first cross brace 210 contacts the first closed steel strip 6, and the roller surface of the second cross brace 307 contacts the second closed steel strip 7. The first cross brace 210 and the second cross brace 307 are arranged symmetrically with the vertical symmetry plane as the symmetry plane.

[0042] In one embodiment, such as Figure 1 , Figure 2 As shown, the first steel strip film-forming assembly 2 further includes a first inclined support plate 214, and the second steel strip film-forming assembly 3 further includes a second inclined support plate 308. The first inclined support plate 214 is provided between the first traction roller 201 and the first guide roller 204, and the second inclined support plate 308 is provided between the second traction roller 301 and the second guide roller 304. The first inclined support plate 214 and the second inclined support plate 308 are symmetrically arranged on both sides of a vertical plane of symmetry. Figure 2 As shown, the first inclined support plate 214 and the second inclined support plate 308 are respectively inclined, and the opening formed by the first inclined support plate 214 and the second inclined support plate 308 gradually decreases from the first traction roller 201 toward the first passing roller 204.

[0043] In one embodiment, such as Figure 1 , Figure 2 As shown, the first steel strip film-forming assembly 2 further includes a third inclined support plate 215, and the second steel strip film-forming assembly 3 further includes a fourth inclined support plate 309. The third inclined support plate 215 is provided between the first guide roller 204 and the first gap adjusting roller 203, and the fourth inclined support plate 309 is provided between the second guide roller 304 and the second gap adjusting roller 303. The third inclined support plate 215 and the fourth inclined support plate 309 are symmetrically arranged on both sides of the vertical symmetry plane. Figure 2 As shown, the third inclined support plate 215 and the fourth inclined support plate 309 are inclined, and the openings formed by the third inclined support plate 215 and the fourth inclined support plate 309 gradually decrease from the first roller 204 toward the first gap adjusting roller 203. It should be noted that the surfaces of the first inclined support plate 214 and the third inclined support plate 215 are in contact with the first closed steel strip 6, and powder flows on the surface of the first closed steel strip 6 away from the surface of the first inclined support plate 214 or the third inclined support plate 215; the surfaces of the second inclined support plate 308 and the fourth inclined support plate 309 are in contact with the second closed steel strip 7, and powder flows on the surface of the second closed steel strip 7 away from the surface of the second inclined support plate 308 or the fourth inclined support plate 309.

[0044] In one embodiment, such as Figure 1 As shown, it also includes a vertical sealing plate assembly 4, which includes a first vertical sealing plate 401 and a second vertical sealing plate 402. The first vertical sealing plate 401 is disposed on the side of the first traction roller 201 away from the vertical plate 1. The first vertical sealing plate 401 and the second vertical sealing plate 402 are disposed on the same side. The first vertical sealing plate 401 and the vertical plate 1 cooperate to seal the two sides of the first inclined support plate 214 and the second inclined support plate 308 respectively. The second vertical sealing plate 402 and the vertical plate 1 cooperate to seal the two sides of the third inclined support plate 215 and the fourth inclined support plate 309 respectively, so as to ensure that the powder is separated along the height direction of the vertical plate 1. Figure 2 It moves downwards (in the Z-axis direction).

[0045] According to an embodiment of the present invention, another aspect provides a battery electrode production system, including the aforementioned steel strip pre-film forming device, and further including a controller and a feeder. The feeder provides powder to the surfaces of the first inclined support plate 214 and the second inclined support plate 308. The controller is connected to the first correction power member 208, the second correction power member, the first correction sensor 213, the second correction sensor, the gap adjustment roller assembly 3, the first traction power member 202, and the second traction power member 302. The controller can adjust the distance between the central axis of the first gap adjustment roller 203 and the central axis of the second gap adjustment roller 303. The gap between the first gap adjustment roller 203 and the second gap adjustment roller 303 allows the first closed steel strip 6 and the second closed steel strip 7 to pass through.

[0046] In the specific production process, the first closed steel belt 6 is installed and adjusted by the first tension roller 209 to achieve a suitable tension; simultaneously, the second closed steel belt 7 is installed and adjusted by the second tension roller 306 to achieve a suitable tension. The gap between the first gap adjusting roller 203 and the second gap adjusting roller 303 is adjusted, and the first traction power component 202 and the second traction power component 302 are activated respectively, causing the first closed steel belt 6 and the second closed steel belt 7 to move at the same speed and in opposite directions. The feeder rotates in two directions (one clockwise, one counterclockwise), spraying powder onto the first closed steel belt 6 of the first inclined support plate 214 and the second closed steel belt 7 of the second inclined support plate 308. The powder accumulates between the first inclined support plate 214 and the second inclined support plate 308. The opening formed by the third inclined support plate 215 and the fourth inclined support plate 309 gradually decreases from the first roller 204 towards the first gap adjusting roller 203. The first closed steel belt 6 and the second closed steel belt 7 carry the powder continuously downwards. Figure 2 The opening narrows downwards along the Z-axis, continuously compressing the powder. This causes the powder to adhere to the surface of the first closed steel belt 6 or the second closed steel belt 7 at the first gap adjusting roller 203 and the second gap adjusting roller 303, forming a continuous film. Simultaneously, the first correction sensor 213 monitors the movement trajectory of the first closed steel belt 6 in real time, and the second correction sensor monitors the movement trajectory of the second closed steel belt 7 in real time. If a deviation is detected, it is immediately fed back to the controller, which responds by having either the first correction power component 208 or the second correction power component perform a correction movement. This ensures close coordination and stable operation throughout the entire production process, guaranteeing high-quality film production.

[0047] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A steel strip pre-film forming device, characterized in that, Includes a vertical plate (1), and a first steel strip film-forming assembly (2) and a second steel strip film-forming assembly (3) arranged symmetrically. The first steel strip film-forming assembly (2) includes: The first traction roller (201) is disposed on the vertical plate (1); The first gap adjusting roller (203) is disposed on the vertical plate (1), and the roller surface of the first traction roller (201) and the roller surface of the first gap adjusting roller (203) are respectively adapted to contact the first closed steel strip (6); A first correction roller (205) is disposed on the vertical plate (1). The roller surface of the first correction roller (205) is adapted to contact the first closed steel strip (6). The first correction roller (205) is driven to correct the first closed steel strip (6).

2. The steel strip pre-film forming device according to claim 1, characterized in that, The first steel strip film forming assembly (2) further includes a first correction mounting base (206), a first slide rail (207), and a first correction power component (208). One end of the first correction roller (205) passes through the vertical plate (1) and is connected to the first correction mounting base (206). The first slide rail (207) is fixedly mounted on the vertical plate (1) and is slidably connected to the first correction mounting base (206). The adjusting end of the first correction mounting base (206) is provided with a first oblong hole (2061). The eccentric shaft (2081) of the first correction power component (208) is adapted to the first oblong hole (2061).

3. The steel strip pre-film forming device according to claim 2, characterized in that, The first steel strip film forming assembly (2) further includes a first tension roller (209), one end of which is connected to the vertical plate (1). The end of the first tension roller (209) away from the vertical plate (1) is provided with a first vertical side plate (501). A first correction sensor (213) is provided on the first vertical side plate (501). The first correction sensor (213) is "U" shaped, and a portion of the first closed steel strip (6) passes through the "U" shaped space.

4. The steel strip pre-film forming apparatus according to claim 3, characterized in that, The first steel strip film forming assembly (2) further includes a first guide roller (204), the roller surface of which is adapted to contact the first closed steel strip (6).

5. The steel strip pre-film forming apparatus according to claim 4, characterized in that, The second steel strip film forming assembly (3) includes a second traction roller (301), which is set at the same height as the first traction roller (201). The second central axis of the second traction roller (301) and the first central axis of the first traction roller (201) form a horizontal plane. The plane passing through the midline between the first central axis and the second central axis and perpendicular to the horizontal plane is a vertical symmetry plane.

6. The steel strip pre-film forming apparatus according to claim 5, characterized in that, The second steel strip film forming assembly (3) further includes a second correction roller (305), a second gap adjusting roller (303), and a second guide roller (304). The first correction roller (205) and the second correction roller (305) are symmetrically arranged on both sides of the vertical symmetry plane. The first gap adjusting roller (203) and the second gap adjusting roller (303) are symmetrically arranged on both sides of the vertical symmetry plane. The first guide roller (204) and the second guide roller (304) are symmetrically arranged on both sides of the vertical symmetry plane. The roller surfaces of the second traction roller (301), the second correction roller (305), the second guide roller (304), and the second gap adjusting roller (303) are adapted to be provided with a second closed steel strip (7). The first closed steel strip (6) and the second closed steel strip (7) move in opposite directions.

7. The steel strip pre-film forming apparatus according to claim 6, characterized in that, The first steel strip film forming assembly (2) further includes a first inclined support plate (214), and the second steel strip film forming assembly (3) further includes a second inclined support plate (308). The first inclined support plate (214) is provided between the first traction roller (201) and the first guide roller (204), and the second inclined support plate (308) is provided between the second traction roller (301) and the second guide roller (304). The first inclined support plate (214) and the second inclined support plate (308) are symmetrically arranged on both sides of the vertical symmetry plane.

8. The steel strip pre-film forming apparatus according to claim 7, characterized in that, The first steel strip film forming assembly (2) further includes a third inclined support plate (215), and the second steel strip film forming assembly (3) further includes a fourth inclined support plate (309). The third inclined support plate (215) is provided between the first guide roller (204) and the first gap adjusting roller (203), and the fourth inclined support plate (309) is provided between the second guide roller (304) and the second gap adjusting roller (303). The third inclined support plate (215) and the fourth inclined support plate (309) are symmetrically arranged on both sides of the vertical symmetry plane. The opening formed by the third inclined support plate (215) and the fourth inclined support plate (309) gradually decreases from the first guide roller (204) toward the first gap adjusting roller (203).

9. The steel strip pre-film forming apparatus according to claim 8, characterized in that, It also includes a vertical sealing plate assembly (4), which includes a first vertical sealing plate (401) and a second vertical sealing plate (402). The first vertical sealing plate (401) is disposed on the side of the first traction roller (201) away from the vertical plate (1). The first vertical sealing plate (401) and the second vertical sealing plate (402) are disposed on the same side. The first vertical sealing plate (401) and the vertical plate (1) cooperate to seal the sides of the first inclined support plate (214) and the second inclined support plate (308) respectively. The second vertical sealing plate (402) and the vertical plate (1) cooperate to seal the sides of the third inclined support plate (215) and the fourth inclined support plate (309) respectively.

10. A battery electrode production system, characterized in that, Includes the steel strip pre-film forming apparatus according to any one of claims 1-9.

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