Oil scraping device

Abstract

The utility model discloses an oil scraping device which is used for cleaning oil drops generated by an oil film on a roller body. The oil scraping device comprises a driving mechanism and an oil scraping mechanism, the driving mechanism is used for driving the oil scraping mechanism to be in contact with or separated from the roller body; the recycling part is arranged along one side, far away from the roller body, of the oil scraping mechanism, the driving mechanism drives the oil scraping mechanism to scrape redundant oil drops on the roller body, and the scraped oil drops are recycled through the recycling part. Therefore, oil drops on the surface of the roller body are prevented from being generated and adhered, the uniformity of an oil film on the surface of the roller body is improved, equipment pollution is reduced, the workload of maintenance and cleaning is reduced, and the production efficiency and the product quality of the lithium ion battery diaphragm are improved.

Description

Technical Field

[0001] The utility model relates to the field of oil scraping, in particular to an oil scraping device. Background Art

[0002] In the lithium-ion battery separator industry, the wet biaxial stretching process involves an extruder mixing and extruding the oil. The mixed oil is then extruded into sheets through the sheet casting process, forming a mixed oil film. This process is crucial to separator quality; any unevenness can lead to reduced battery performance. However, in existing technologies, small oil droplets adhere to the oil film during the extrusion process, causing uneven oil distribution on the film surface and compromising separator performance and quality.

[0003] Furthermore, excess white oil droplets left on the rollers can not only drip onto parts below the equipment, contaminating it, but are also difficult to clean, increasing maintenance costs and difficulty. Equipment contamination can also negatively impact the quality of the diaphragm production environment, ultimately affecting the quality of the final product. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an oil scraping device capable of preventing oil droplets from being generated and adhering.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An oil scraping device for cleaning oil droplets generated by the oil film on the roller body, comprising:

[0007] a driving mechanism and an oil scraping mechanism connected to the driving mechanism;

[0008] The driving mechanism is used to drive the oil scraping mechanism to contact or separate from the roller body;

[0009] The recovery portion is arranged along a side of the oil scraping mechanism away from the roller body.

[0010] Furthermore, the oil scraping mechanism is arranged below the roller body and includes a scraper and a mounting portion. The mounting portion has a mounting surface, which intersects with the roller surface with an extension line of the mounting surface, and extends a tangent surface with the roller surface along the intersection position. The angle between the mounting surface and the tangent surface is an acute angle, and the direction of the angle is the same as the rotation direction of the roller body; the scraper is installed on the mounting surface, and the driving mechanism is fixedly connected to the mounting portion.

[0011] Furthermore, the mounting surface includes a first mounting surface and a second mounting surface in a "V"-shaped structure, the opening of the "V"-shaped structure faces the recovery portion, and the scraper is mounted on the first mounting surface or the second mounting surface.

[0012] Furthermore, it also includes a fixing seat fixedly connected to the driving mechanism, an angle iron fixing block is provided on the fixing seat, the mounting portion is an angle iron, and both ends of the angle iron are fixedly connected to the angle iron fixing block.

[0013] Furthermore, both ends of the recovery portion are fixedly connected to the fixing seat.

[0014] Furthermore, the oil scraping mechanism further includes a pressing plate fixedly connected to the mounting surface, and the scraper is embedded between the pressing plate and the mounting surface.

[0015] Furthermore, the contact point between the scraper and the roller body is located on the side of the bottom of the roller body facing the film moving direction.

[0016] Furthermore, the driving mechanism is a cylinder with a guide rod.

[0017] Furthermore, the recovery part is an oil collecting box, and the oil collecting box has an oil drain part.

[0018] Furthermore, the oil drain portion is provided at the bottom of the oil collecting box, and the oil drain portion is an oil drain hole.

[0019] The beneficial effects of the utility model are:

[0020] This utility model provides an oil scraping device. A driving mechanism drives the scraping mechanism into contact with the roller surface, thereby scraping off excess oil droplets from the roller. The scraped oil droplets are then recovered by a recovery unit. This prevents the formation and adhesion of oil droplets on the roller surface, improves the uniformity of the oil film on the roller surface, reduces equipment contamination, and reduces maintenance and cleaning workload, thereby improving the production efficiency and product quality of lithium-ion battery separators. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 It is a front view schematic diagram of the utility model;

[0024] Figure 3 It is a top view schematic diagram of the utility model;

[0025] Figure 4 It is a side view schematic diagram of the utility model;

[0026] Figure 5 It is an exploded schematic diagram of a partial structure of the utility model.

[0027] in,

[0028] 1. Roller body;

[0029] 2. Driving mechanism;

[0030] 3. Oil scraping mechanism; 31. Scraper; 32. Pressing plate; 33. Mounting portion; 331. Mounting surface; 3311. First mounting surface; 3312. Second mounting surface;

[0031] 4. Recovery department; 41. Oil discharge department;

[0032] 5. Fixed seat; 51. Angle iron fixing block. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0034] Reference Figure 1 、 4 An oil scraping device includes a drive mechanism 2, an oil scraping mechanism 3, and a recovery unit 4, which is used to clean oil droplets generated by the oil film on the roller body 1. The drive mechanism 2 is drivably connected to the oil scraping mechanism 3, and the drive mechanism 2 is used to drive the oil scraping mechanism 3 to contact or separate from the roller body 1; the recovery unit 4 is arranged along the side of the oil scraping mechanism 3 away from the roller body 1. It can be understood that when the roller body 1 is film-feeding, excess oil droplets will be generated on the roller body 1. At this time, the drive mechanism 2 can drive the oil scraping mechanism 3 to contact the surface of the roller body 1, so that the excess oil droplets on the roller body 1 are scraped off by the oil scraping mechanism 3, and the scraped oil droplets are then recovered by the recovery unit 4. This prevents the generation and adhesion of oil droplets on the surface of the roller body 1, improves the uniformity of the oil film on the surface of the roller body 1, reduces equipment pollution, and reduces the workload of maintenance and cleaning, thereby improving the production efficiency and product quality of lithium-ion battery separators.

[0035] Reference Figure 4Generally speaking, the oil film flows along the upper portion of the roller body 1, with the direction of the arrow indicating the direction of film flow. Therefore, in some embodiments, the oil scraping mechanism 3 is disposed below the roller body 1. Furthermore, the oil scraping mechanism 3 includes a scraper 31 and a mounting portion 33. The mounting portion 33 has a mounting surface 331. An extension of the mounting surface 331 intersects with the roller surface, and a tangent plane extending from the intersection with the roller surface forms an acute angle between the mounting surface 331 and the tangent plane, with the direction of the angle being the same as the rotation direction of the roller body 1. The scraper 31 is mounted on the mounting surface 331, and the drive mechanism 2 is fixedly connected to the mounting portion 33. Similarly, after the scraper 31 is mounted on the mounting surface 331, the angle between the scraper 31 and the tangent plane also forms an acute angle. It is understood that the acute angle between the scraper 31 and the cut surface allows the scraper 31 to more closely adhere to the surface of the roller 1, reducing the mechanical pressure exerted by the scraper 31 on the roller 1 surface and helping the scraper 31 capture and remove more oil droplets, thereby reducing oil leakage. Furthermore, the dynamic behavior of oil droplets during the scraping process tends to move along the scraper 31 rather than reattaching to the roller 1. Therefore, adjusting the angle of the scraper 31 can control the flow direction of the scraped oil droplets, more effectively recovering them through the recovery unit 4, and preventing them from dripping and contaminating equipment or redistributing them onto the roller 1.

[0036] In some embodiments, reference Figure 1 、 4 The mounting surface 331 includes a first mounting surface 3311 and a second mounting surface 3312 in a V-shaped structure. The opening of the V-shaped structure faces the recovery portion 4. The scraper 31 is mounted on either the first mounting surface 3311 or the second mounting surface 3312. It is understood that a first cut surface extends from the first mounting surface 3311 where it contacts the roller surface, and a second cut surface extends from the second mounting surface 3312 where it contacts the roller surface. The angle between the first mounting surface 3311 and the first cut surface is a first acute angle, while the angle between the second mounting surface 3312 and the second cut surface is a second acute angle. The first and second acute angles are in opposite directions and can be equal or different in magnitude. It is understood that when the rotation direction of the roller body 1 changes, the scraper 31 can be switched between the first mounting surface 3311 and the second mounting surface 3312, ensuring that the angle between the scraper 31 and the first or second cut surface remains acute and aligned with the direction of rotation of the roller body 1.

[0037] In some embodiments, reference Figure 5, also includes a fixed seat 5 fixedly connected to the driving mechanism 2, an angle iron fixing block 51 is provided on the fixed seat 5, the mounting portion 33 is an angle iron, and the two ends of the angle iron are fixedly connected to the angle iron fixing block 51. In order to reduce the manufacturing cost of the equipment and ensure that the equipment has sufficient mechanical strength, the mounting portion 33 of this embodiment is an angle iron. The angle iron has two mounting surfaces 331, and mounting holes are provided on the mounting surfaces 331. The scraper 31 can be respectively mounted on the two mounting surfaces 331 of the angle iron, and further connected together through the mounting holes using bolts or rivets. Furthermore, the angle iron is mounted on the fixed seat 5, and the fixed seat 5 is fixedly connected to the driving mechanism 2. It can be understood that the driving mechanism 2 acts on the fixed seat 5, drives the fixed seat 5, and thereby drives the angle iron to move, so that the scraper 31 provided on the angle iron contacts the roller body 1.

[0038] Further, refer to Figure 1-3 , both ends of the recovery portion 4 are fixedly connected to the fixing base 5. It is understood that the recovery portion 4 and the scraper 31 mechanism are both mounted on the fixing base 5. When the driving mechanism 2 drives the fixing base 5 to move, the recovery portion 4 can maintain synchronous movement with the scraper 31 mechanism, so that the oil droplets scraped by the scraper 31 mechanism can be completely recovered by the recovery portion 4.

[0039] In some embodiments, the oil scraping mechanism 3 further includes a pressure plate 32 fixedly connected to the mounting surface 331, with the scraper 31 embedded between the pressure plate 32 and the mounting surface 331. It should be noted that the scraper 31 of this embodiment is made of a flexible material, preferably soft silicone. To improve the stability and mechanical properties of the scraper 31, a pressure plate 32 is provided on the side of the scraper 31 away from the mounting surface 331. The scraper 31 is pressed and mounted by the pressure plate 32, which increases pressure on the surface of the scraper 31, thereby firmly securing the scraper 31 between the pressure plate 32 and the mounting surface 331. Furthermore, a mounting groove is provided on the pressure plate 32, and the scraper 31 can be embedded in the mounting groove, that is, the scraper 31 is fixedly connected to the pressure plate 32, and then by installing the pressure plate 32 on the mounting surface 331, on the one hand, when the rotation direction of the roller body 1 changes, the pressure plate 32 together with the scraper 31 can be directly removed from the first mounting surface 3311, and then installed on the second mounting surface 3312; on the other hand, when the scraper 31 needs to be repaired or replaced, the pressure plate 32 and the scraper 31 can be directly removed and replaced, which helps to reduce the number of operating steps and improve production efficiency.

[0040] In some embodiments, the contact point between the scraper 31 and the roller 1 is located at the bottom of the roller 1 facing the film-moving direction. Figure 4, wherein the scraper 31 is arranged at the bottom of the roller body 1 near the film-flowing direction, which helps to process the oil film immediately after it is formed. The oil film is processed immediately before leaving the roller body 1, which reduces the time the oil film stays on the roller body 1 and avoids the redistribution or aggregation of the oil film due to long-term contact with the roller body 1, thereby effectively controlling the thickness and uniformity of the oil film. In addition, the scraper 31 is located at the bottom of the roller body 1, and is at a position where the oil film moves downward along the surface of the roller body 1 and is about to leave the roller body 1, utilizing the natural power of the rotation of the roller body 1 to assist in scraping the oil. At this point, the gravity acting on the oil film and the dynamic force brought by the rotation of the roller body 1 work together to help the scraper 31 remove the oil film more efficiently. Preferably, the contact point of the scraper 31 with the roller body 1 is located 5-20 mm from the bottom of the roller body 1 toward the film-flowing direction.

[0041] In some embodiments, reference Figure 1 The drive mechanism 2 is a cylinder with a guide rod. This maintains the linear motion of the piston rod, preventing rotation or lateral swing during movement. Furthermore, the cylinder's structural support, enhanced by the guide rod, allows it to withstand greater lateral loads without causing system instability. This allows it to carry heavier scrapers 31 or operate under higher loads, improving overall system reliability and consistent scraping results.

[0042] In some embodiments, reference Figure 1 、 2 The recovery unit 4 is an oil collection box with an oil drain portion 41. Furthermore, the oil drain portion 41 is located at the bottom of the box and is a drain hole. Placing the drain hole at the bottom of the box allows the collected oil to drain naturally by gravity. This natural drainage method eliminates the need for additional pumping or mechanical drainage devices, helping to reduce malfunctions. The bottom drain hole does not restrict the location or installation of the oil collection box, making the overall layout more flexible and allowing for optimization based on the site environment and equipment layout.

[0043] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An oil scraping device for cleaning oil droplets generated by the oil film on the roller body, characterized in that: include: a driving mechanism and an oil scraping mechanism connected to the driving mechanism; The driving mechanism is used to drive the oil scraping mechanism to contact or separate from the roller body; a recovery portion, the recovery portion being arranged along a side of the oil scraping mechanism away from the roller body; The oil scraping mechanism is arranged below the roller body and includes a scraper and a mounting portion. The mounting portion has a mounting surface, which intersects with the roller surface with an extension line of the mounting surface, and extends a tangent surface with the roller surface along the intersection position. The angle between the mounting surface and the tangent surface is an acute angle, and the direction of the angle is the same as the rotation direction of the roller body; the scraper is installed on the mounting surface, and the driving mechanism is fixedly connected to the mounting portion.

2. The oil scraping device according to claim 1, characterized in that The mounting surface includes a first mounting surface and a second mounting surface in a "V"-shaped structure, the opening of the "V"-shaped structure faces the recovery portion, and the scraper is mounted on the first mounting surface or the second mounting surface.

3. The oil scraping device according to claim 2, characterized in that It also includes a fixing seat fixedly connected to the driving mechanism, an angle iron fixing block is provided on the fixing seat, the mounting portion is an angle iron, and both ends of the angle iron are fixedly connected to the angle iron fixing block.

4. The oil scraping device according to claim 3, characterized in that Both ends of the recovery portion are fixedly connected to the fixing seat.

5. The oil scraping device according to claim 1, characterized in that The oil scraping mechanism further includes a pressing plate fixedly connected to the mounting surface, and the scraper is embedded between the pressing plate and the mounting surface.

6. The oil scraping device according to claim 1, characterized in that The contact point between the scraper and the roller body is located on the side of the bottom of the roller body facing the film moving direction.

7. The oil scraping device according to any one of claims 1 to 6, characterized in that: The driving mechanism is a cylinder with a guide rod.

8. The oil scraping device according to any one of claims 1 to 6, characterized in that: The recovery part is an oil collecting box, and the oil collecting box has an oil draining part.

9. The oil scraping device according to claim 8, characterized in that The oil drain portion is arranged at the bottom of the oil collecting box, and the oil drain portion is an oil drain hole.

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