Regional cleaning device for back roller

Abstract

The utility model discloses a back roller regional cleaning device which comprises a wiping assembly (2) used for wiping the surface of a back roller (1) and comprising a non-woven fabric and a solvent pipe (22) for continuously conveying alcohol to wet the non-woven fabric; the driving assembly (3) is used for driving the wiping assembly (2) to be close to the surface of the back roller (1) and comprises an air cylinder connected with the wiping assembly (2); and the transverse moving assembly (4) is connected with the driving assembly (3) and used for driving the driving assembly (3) to do reciprocating motion in the axial direction of the back roller (1). The non-woven fabric of the wiping assembly is driven by the driving assembly to be close to the surface of the back roller, the non-woven fabric is driven by the transverse moving assembly to reciprocate in the axial direction of the back roller so as to wipe off particles and other substances attached to the surface of the back roller, online automatic cleaning of the back roller is achieved, manual wiping is replaced, the labor cost is reduced, and the working efficiency is improved. The cleaning efficiency is improved, the product quality is improved, and batch abnormity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pole piece manufacturing equipment, and specifically relates to a back roller area cleaning device. BACKGROUND

[0002] In recent years, new energy vehicles have developed rapidly, and the battery driving system is the main factor affecting the performance and cost of new energy vehicles. Because of its high energy density, low memory effect and high working voltage, the rechargeable battery has become the preferred solution for power batteries in the current new energy vehicle battery driving system.

[0003] As a kind of secondary battery, lithium ion battery (LIB) has the characteristics of high energy density, long service life, energy saving and environmental protection.

[0004] The preparation process of lithium ion battery pole piece usually includes pulping, film coating, drying, rolling, cutting and other processes. Although the manufacturing processes of different manufacturers or different batteries may vary, pole piece rolling is an essential process. After rolling, the pole piece can reach a certain compaction density, which is very important for the improvement of the energy density of lithium ion batteries.

[0005] When the coated A-side pole piece reaches the B-side back roller after drying in the oven, due to the incomplete drying of the A-side film area or the floating of the adhesive on the A-side film surface to the pole piece surface, small particles adhere to the surface of the back roller after contact with the back roller, as shown in FIG. 1. The particles adhering to the surface of the back roller will lift the foil near the back roller, and the lifted foil will shorten the gap (H-h) between the original set foil and the die, and the actual coating thickness on the foil due to the leveling effect of the die spraying slurry will be lower than the coating thickness at the adjacent position, as shown in FIG. 2. Figure 1 Figure 2

[0006] The rolling process compacts the pole piece to the required thickness, and the compaction density of the position with thin coating thickness is smaller than that of the normal coating area, and the appearance of the formed pole piece appears continuous and regular point color difference, which is removed as defective product in the die cutting process, affecting the coating yield, and the regular point defect product flows to the next process to make a battery, which may cause lithium precipitation.

[0007] Back roller material sticking is produced during production, and abnormalities can usually be found only in the stop state. Back roller material sticking produces a large amount of batch scrap in continuous production.

[0008] Currently, back roller foreign matter cleaning is mainly done by manually wiping back and forth with solvent-free dust paper, and the wiping process is mostly in a stop state, affecting the equipment running time, and manual online wiping is easy to touch the pole piece broken belt or not clean.

[0009] ​​With the development of coating machine technology, the coating back roller width is from conventional 800mm width to current 1600mm, and the coating speed is from conventional 30m / min to current 80m / min, so the difficulty of manual cleaning is increasing. Practical new content

[0010] To solve at least one technical problem of the prior art, the utility model provides a back roller regional cleaning device.

[0011] To achieve the above-mentioned utility model purposes, the utility model adopts the technical scheme of a back roller regional cleaning device, comprising: a wiping assembly for wiping the surface of the back roller, comprising non-woven fabric and a solvent pipe for continuously conveying alcohol to wet the non-woven fabric;

[0012] a driving assembly for driving the wiping assembly to be close to the surface of the back roller, comprising a cylinder connected with the wiping assembly; and

[0013] a horizontal moving assembly connected with the driving assembly, for driving the driving assembly to reciprocally move along the axial direction of the back roller.

[0014] Further, the wiping assembly further comprises a peristaltic pump, which continuously and quantitatively conveys alcohol to the non-woven fabric through the solvent pipe.

[0015] Further, the wiping assembly further comprises a wiping plate connected with the cylinder, the wiping plate is arc-shaped towards the surface of the back roller, and the non-woven fabric is detachably mounted on the wiping plate.

[0016] Further, at least one through hole is provided on the wiping plate, a spray head facing the non-woven fabric is mounted in the through hole, and the spray head is connected with the solvent pipe.

[0017] Further, the horizontal moving assembly comprises a motor, a lead screw connected with the motor, and a sliding block connected with the lead screw, and the cylinder is arranged on the sliding block.

[0018] Further, a fixed platform is detachably connected on the top of the sliding block, and the cylinder is fixed on the fixed platform.

[0019] Further, the back roller regional cleaning device further comprises a receiving box, the receiving box is an open box body, the receiving box is arranged below the wiping assembly and moves synchronously with the wiping assembly.

[0020] The utility model has the advantages of:

[0021] The utility model discloses a drive component drives the non -woven fabric of wiping component close to the surface of back roll, and through the transverse shift component drive non -woven fabric reciprocating movement along the back roll axial, to wipe off the particle and so on material adhered on the surface of back roll, realize the on -line automatic cleaning of back roll, replace manual wiping, liberate the manpower, reduce the artificial cost, improve the cleaning efficiency higher, improve product quality, reduce batch exception. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the state diagram that the surface of back roll is adhered with particles in the process of pole piece coating;

[0023] Figure 2 It is the sectional view of pole piece coated by back roll adhered with particles on the surface;

[0024] Figure 3 It is the structure schematic diagram of back roll regional cleaning device of the utility model.

[0025] Among them:

[0026] 1, back roll;2, wiping component;21, wiping board;22, solvent pipe;3, drive component;4, transverse shift component;41, motor;42, screw;43, sliding block;44, fixed platform;45, support;5, material receiving box. DETAILED DESCRIPTION

[0027] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition to indicating the orientation or positional relationship, the above-mentioned terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0031] In addition, the terms "mounting", "setting", "provided with", "connection", "connected", "sleeved" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0033] Referring to Figure 1 The present application provides a back roller cleaning device, comprising a wiping assembly 2, a driving assembly 3 and a horizontal moving assembly 4, the wiping assembly 2 is used for wiping the surface of the back roller 1, comprising a non-woven fabric and a solvent pipe 22 for continuously conveying alcohol to wet the non-woven fabric; the driving assembly 3 is used for driving the wiping assembly 2 to be close to the surface of the back roller 1, the horizontal moving assembly 4 is connected with the driving assembly 3, and is used for driving the driving assembly 3 to reciprocate along the axial direction of the back roller 1.

[0034] When the back roller 1 needs to be cleaned, first, the non-woven fabric of the wiping assembly 2 is driven by the driving assembly 3 to be close to the surface of the back roller 1, and then the driving assembly 3 is driven by the horizontal moving assembly 4 to reciprocate along the axial direction of the back roller 1, and the particles and other substances adhered to the surface of the back roller 1 are wiped off by the non-woven fabric during the clockwise rotation of the back roller 1, so as to complete the cleaning of the surface of the back roller 1. In the process of wiping, the alcohol is continuously conveyed to the non-woven fabric by the solvent pipe 22 to wet the non-woven fabric.

[0035] The utility model discloses a drive assembly 3 drive wiping assembly 2's non -woven fabric is close to the surface of back roll 1, and through the transverse shift subassembly 4 drive non -woven fabric along the back roll 1 axial reciprocating movement to wipe off the particle and so on material adhered on the surface of back roll 1, realize the on -line automatic cleaning of back roll 1, replace artificial wiping, liberate manpower, reduce the artificial cost, improve the cleaning efficiency higher, improve product quality, reduce batch exception.

[0036] Further, the wiping assembly 2 further comprises a peristaltic pump connected with the solvent pipe 22, and the peristaltic pump continuously and quantitatively delivers alcohol to the non-woven fabric through the solvent pipe 22.

[0037] Further, the wiping assembly 2 further comprises a wiping plate 21 connected with the driving assembly 3. The non-woven fabric is detachably mounted on the wiping plate 21, and the wiping plate 21 is arc-shaped towards the surface of the back roll 1. The arc-shaped surface of the wiping plate 21 is matched with the back roll 1, so that the non-woven fabric can tightly adhere to the surface of the back roll 1, thereby enabling the non-woven fabric to wipe off the particles and the like adhered to the surface of the back roll 1.

[0038] As a preferred embodiment, the non-woven fabric can be attached to the wiping plate 21 by a magic tape.

[0039] As another preferred embodiment, the wiping plate 21 is hingedly connected with a pressing plate at least at opposite edges, and the non-woven fabric is fixed on the wiping plate 21 by the pressing plate.

[0040] Further, the wiping plate 21 is provided with at least one through hole, and a spray head facing the non-woven fabric is mounted in the through hole and connected with the solvent pipe 22.

[0041] Further, the wiping assembly 2 comprises a cylinder connected with the wiping plate 21, and the cylinder is fixed on the transverse shift subassembly 4.

[0042] Further, the transverse shift subassembly 4 comprises a motor 41, a lead screw 52 connected with the motor 41, and a sliding block 43 connected with the lead screw 52, and the cylinder is arranged on the sliding block 43.

[0043] Further, the top of the sliding block 43 is detachably connected with a fixed platform 44, and the cylinder is fixed on the fixed platform 44.

[0044] Further, the horizontal moving assembly 4 comprises two supports 45, which are arranged along the axial direction of the back roller 1 and have a distance not less than the length of the back roller 1, and the two supports 45 are used for supporting the lead screw 52. Specifically, the support 45 is provided with a supporting through hole, one end of the lead screw 52 is connected with the motor 41 through the supporting through hole, and the other end of the lead screw 42 is arranged in the supporting through hole, wherein the lead screw 42 is rotatably arranged in the supporting through hole through a bearing.

[0045] Further, the back roller area cleaning device further comprises a receiving box 5, which is an open box body, the receiving box 5 is arranged below the wiping assembly 2 and the opening of the receiving box 5 faces the wiping assembly 2, and the receiving box 5 moves synchronously with the wiping assembly 2 so that the particles wiped off by the wiping assembly 2 fall into the receiving box 5.

[0046] Preferably, the receiving box 5 can be detachably connected to the wiping plate 21 through a connecting piece.

[0047] When the back roller 1 needs to be cleaned, the operation process of the utility model is roughly as follows:

[0048] 1. The cylinder drives the wiping assembly 2 and the receiving box 5 to approach the back roller 1, and makes the non-woven fabric tightly adhere to the surface of the back roller 1;

[0049] 2. The peristaltic pump continuously and quantitatively delivers alcohol to the non-woven fabric through the solvent pipe 22 to wet the non-woven fabric;

[0050] 3. In the process of rotating the back roller 1, the non-woven fabric completes wiping a certain circumferential section of the back roller 1, and the particles wiped off fall into the receiving box 5;

[0051] 4. When the wiping of the section is completed, the motor 41 rotates to drive the lead screw 42 to rotate, thereby driving the sliding block 43 to move along the lead screw 42, to drive the cylinder, the non-woven fabric, the solvent pipe 22 and the receiving box 5 to move to the next section of the back roller 1, thereby completing the wiping of the entire back roller 1.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the above-described embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A back roller area cleaning device, characterized in that, include: Wiping assembly (2) for wiping the surface of back roller (1) includes a nonwoven fabric and a solvent tube (22) for continuously conveying alcohol to wet the nonwoven fabric; A drive assembly (3) is used to drive the wiping assembly (2) to come into contact with the surface of the back roller (1), and includes a cylinder connected to the wiping assembly (2); as well as The transverse component (4) is connected to the drive component (3) and is used to drive the drive component (3) to reciprocate along the axial direction of the back roller (1).

2. The back roller area cleaning device according to claim 1, characterized in that, The wiping assembly (2) also includes a peristaltic pump that continuously and quantitatively delivers alcohol to the nonwoven fabric through the solvent tube (22).

3. The back roller area cleaning device according to claim 1, characterized in that, The wiping assembly (2) also includes a wiping plate (21) connected to the cylinder. The surface of the wiping plate (21) facing the back roller (1) is arc-shaped, and the non-woven fabric is detachably mounted on the wiping plate (21).

4. The back roller area cleaning device according to claim 3, characterized in that, The wiping plate (21) is provided with at least one through hole, and a nozzle facing the nonwoven fabric is installed in the through hole. The nozzle is connected to the solvent tube (22).

5. The back roller area cleaning device according to claim 1, characterized in that, The transverse assembly (4) includes a motor (41), a lead screw (52) connected to the motor (41), and a slider (43) connected to the lead screw (52), with the cylinder mounted on the slider (43).

6. The back roller area cleaning device according to claim 5, characterized in that, The top of the slider (43) is detachably connected to a fixed platform (44), and the cylinder is fixed on the fixed platform (44).

7. The back roller zone cleaning device according to any one of claims 1 to 6, characterized in that, The back roller area cleaning device also includes a receiving box (5), which is an open box. The receiving box (5) is located below the wiping assembly (2) and moves synchronously with the wiping assembly (2).

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