A cutting roller mechanism for removing residual oil stains from the edge of a base film

Abstract

The utility model relates to the technical field of diaphragm production, concretely relates to a kind of shearing roller mechanism for removing residual oil dirt on the edge of base film, including support seat, one side of the support seat is fixed with two connection rods, the upper and lower layers are set, each connection rod is rotatably connected with shearing roller, each shearing roller is attached with oil scraping rod on one side of outer surface, one end of each oil scraping rod is fixed on the support seat, each oil scraping rod is fixedly connected with the connection rod by clamp respectively, the outer surface of shearing roller is sleeved with oil absorption cotton and fixedly connected, the utility model can absorb white oil separated out in the preparation process of lithium battery diaphragm, first absorb white oil by oil absorption cotton, then scrape out and guide away shearing roller by oil scraping rod, to reduce the risk of oil stain flaw generation, improve extraction efficiency, maintain production running stability.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm production technology, and in particular to a shearing roller mechanism for removing residual oil stains from the edge of the base film. Background Technology

[0002] In the wet-process diaphragm production process, when the stretched film is cooled and shaped by the traction machine, the large distance between the transverse stretching machine and the traction machine, and between the traction machine and the winding machine, makes the film prone to wrinkling defects between the equipment or rollers under the combined action of traction tension and residual tensile stress. Currently, the industry commonly uses roll shearing devices to effectively solve this process problem.

[0003] Existing lithium-ion battery separator casting machines shape the casting sheet by extruding it through a die and bonding it to a cooling roller for cooling and shaping. However, necking occurs before the sheet is bonded to the shaping roller, resulting in a thinner center and thicker edges. This increased thickness at the edges leads to a significant increase in white oil residue, reducing solvent extraction efficiency and causing surface defects such as oil spots. Furthermore, after the biaxial stretching process, oil easily accumulates at the edges of the base film due to factors such as chain clamping. Therefore, difficulties such as excessive oil contamination at the edges and difficulty in extraction frequently arise.

[0004] The shearing roller device currently configured on the production line has a relatively simple function, mainly limited to basic functions such as eliminating film wrinkles and improving flatness. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a shearing roller mechanism for removing residual oil stains from the edge of the base film, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides a shearing roller mechanism for removing residual oil stains from the edge of a base film. The mechanism includes a support base, on one side of which are two connecting rods arranged in an upper and lower layer. A shearing roller is rotatably connected to each connecting rod. An oil scraper is attached to one side of the outer surface of each shearing roller, with one end of each oil scraper fixed to the support base. Each oil scraper is fixedly connected to the connecting rod via a clamp. Oil-absorbing cotton is fitted onto the outer surface of the shearing roller and fixedly connected thereto.

[0007] Preferably, a support rod is fixed to the bottom of the support base.

[0008] Preferably, the oil scraper is hollow inside, with an oil inlet at one end of the oil scraper that is in contact with the shear roller, and an oil outlet at one end of the oil scraper that passes through the support base.

[0009] Preferably, the outer surface of the scraper roller is provided with multiple oil inlet holes along the oil inlet direction.

[0010] Preferably, the support base is provided with a connecting pipe on the side away from the shear roller, and the connecting pipe is connected to the oil outlet.

[0011] Preferably, it also includes a pump body, wherein the input end of the pump body is connected to the free end of the connecting pipe.

[0012] The beneficial effects of this invention are: it can absorb the white oil that is separated during the preparation of lithium battery separators. First, the white oil is absorbed by oil-absorbing cotton, and then scraped off by an oil scraper and guided away from the shearing roller, thereby reducing the risk of oil spot defects, improving extraction efficiency, and maintaining the stability of production operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the oil scraper according to an embodiment of the present invention;

[0016] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A.

[0017] The diagram is marked as follows:

[0018] 1. Support base; 2. Connecting rod; 3. Shear roller; 4. Oil scraper; 5. Clamp; 6. Oil-absorbing cotton; 7. Support rod; 8. Oil inlet; 9. Oil outlet; 10. Oil inlet hole; 11. Connecting pipe; 12. Pump body. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1 to 3 As shown, a shearing roller mechanism for removing residual oil stains from the edge of a base film includes a support base 1. Two connecting rods 2 arranged in an upper and lower layer are fixedly mounted on one side of the support base 1. A shearing roller 3 is rotatably connected to each connecting rod 2. An oil scraper 4 is attached to one side of the outer surface of each shearing roller 3. One end of each oil scraper 4 is fixed to the support base 1. Each oil scraper 4 is fixedly connected to the connecting rod 2 by a clamp 5. An oil-absorbing cotton 6 is sleeved on the outer surface of the shearing roller 3 and fixedly connected.

[0022] As an optional embodiment, a support rod 7 is fixedly provided at the bottom of the support base 1.

[0023] like Figure 1 As shown, it can absorb the white oil that precipitates during the preparation of lithium battery separators. First, the white oil is absorbed by the oil-absorbing cotton 6, and then scraped off by the oil scraper 4 and guided away from the shear roller 3, thereby reducing the risk of oil spot defects, improving extraction efficiency, and maintaining the stability of production operation.

[0024] As an optional embodiment, the oil scraper 4 is hollow inside, and an oil inlet 8 is provided at one end of the oil scraper 4 that is in contact with the shear roller 3. An oil outlet 9 is provided at one end of the oil scraper 4, and the oil outlet 9 passes through the support base 1.

[0025] like Figure 2 and Figure 3 As shown, the white oil will accumulate between the shear roller 3 and the scraper 4 after being blocked by the scraper 4. After overflowing, it will enter the interior of the scraper 4 through the oil inlet 8 and finally be discharged from the oil outlet 9, thus avoiding the problem of white oil overflowing and being difficult to collect.

[0026] As an optional embodiment, the oil scraper 4 is provided with a plurality of oil inlet holes 10 along the direction of the oil inlet 8 on the outer surface of the shear roller 3.

[0027] like Figure 2 and Figure 3 As shown, the white oil between the shear roller 3 and the scraper 4 needs to overflow to the oil inlet 8 before it can enter the interior of the scraper 4. After the work stops, some white oil remains between the shear roller 3 and the scraper 4 and cannot be processed. By setting the oil inlet 10, the white oil between the shear roller 3 and the scraper 4 can enter the interior of the scraper 4 through the oil inlet 10, thereby improving the efficiency of the white oil being fully processed.

[0028] As an optional embodiment, the support base 1 is provided with a connecting pipe 11 on the side away from the shear roller 3, and the connecting pipe 11 is connected to the oil outlet 9.

[0029] like Figure 1 As shown, by setting the connecting pipe 11, the white oil discharged from the two oil outlets 9 can be uniformly discharged from the connecting pipe 11, thereby further improving the efficiency of centralized collection of white oil.

[0030] As an optional embodiment, it also includes a pump body 12, the input end of which is connected to the free end of the connecting pipe 11.

[0031] like Figure 1 As shown, the pump body 12 operates to further improve the discharge efficiency of white oil in the scraper bar 4.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this utility model is limited to these examples; within the framework of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this utility model as described above, which are not provided in the details for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shearing roller mechanism for removing residual oil stains from the edge of a base film, comprising a support base (1), characterized in that, Two connecting rods (2) arranged in an upper and lower layer are fixed on one side of the support base (1). Each connecting rod (2) is rotatably connected to a shearing roller (3). One side of the outer surface of each shearing roller (3) is fitted with an oil scraper (4). One end of each oil scraper (4) is fixed on the support base (1). Each oil scraper (4) is fixedly connected to the connecting rod (2) by a clamp (5). The outer surface of the shearing roller (3) is covered with oil-absorbing cotton (6) and fixedly connected.

2. The shearing roller (3) mechanism for removing residual oil stains from the edge of a base film according to claim 1, characterized in that, The bottom of the support base (1) is fixed with a support rod (7).

3. The shearing roller (3) mechanism for removing residual oil stains from the edge of a base film according to claim 1, characterized in that, The oil scraper (4) is hollow inside. The oil scraper (4) has an oil inlet (8) facing upward at one end of the shear roller (3). The oil outlet (9) is provided at one end of the oil scraper (4) and passes through the support base (1).

4. The shearing roller (3) mechanism for removing residual oil stains from the edge of the base film according to claim 3, characterized in that, The scraper (4) has multiple oil inlet holes (10) along the direction of the oil inlet (8) on the outer surface of the shear roller (3).

5. The shearing roller (3) mechanism for removing residual oil stains from the edge of a base film according to claim 3, characterized in that, The support base (1) is provided with a connecting pipe (11) on the side away from the shear roller (3), and the connecting pipe (11) is connected to the oil outlet (9).

6. The shearing roller (3) mechanism for removing residual oil stains from the edge of a base film according to claim 5, characterized in that, It also includes a pump body (12), the input end of which is connected to the free end of the connecting pipe (11).

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