An oil removal device for a film production apparatus and a film production apparatus

Abstract

The application discloses an oil removing device for a film production equipment and the film production equipment. The oil removing device comprises a mounting frame provided with a first mounting structure and a second mounting structure; an oil blocking roller assembly arranged on the first mounting structure and comprising a driving unit and an oil blocking roller capable of being driven by the driving unit to rotate along a set direction at a set rotating speed, the oil blocking roller being configured to be capable of abutting against an outer peripheral surface of a target roller; and an oil scraping piece assembly arranged on the second mounting structure and comprising an oil scraping piece in a strip shape, the oil scraping piece being configured to be capable of abutting against the outer peripheral surface of the target roller; and the oil blocking roller and the oil scraping piece are arranged in parallel and at intervals. The application can block excessive white oil from following the target roller by using the oil blocking roller which abuts against the target roller and synchronously reversely rotates, so that the white oil is prevented from thickening on the outer peripheral surface of the target roller. In addition, the white oil remaining on the target roller can be deeply cleaned by the oil scraping piece.

Description

Technical Field

[0001] This application relates to the field of thin film production technology, specifically to an oil removal device and thin film production equipment for thin film production equipment. Background Technology

[0002] When preparing films using a wet process, white oil (usually refined white mineral oil, an inert liquid hydrocarbon mixture) is mixed into the slurry. This white oil helps reduce viscosity and optimizes leveling properties. Additionally, white oil is released during the process of forming the thick sheet on the casting roller after the slurry is fed through the die, and also during cooling on the cooling roller. A moderate amount of white oil helps the thick sheet peel smoothly from the casting roller and also aids in uniform cooling. However, excessive white oil release can hinder the adhesion of the thick sheet to the casting roller, potentially causing premature separation and leaving visible oil spots or a hazy oil film on the finished film, affecting its appearance. Utility Model Content

[0003] This application aims to address one of the technical problems in the related art to a certain extent. To this end, this application provides an oil removal device and a thin film production device for thin film production equipment.

[0004] To achieve the above objectives, this application adopts the following technical solution: an oil removal device for thin film production equipment, the oil removal device comprising:

[0005] The mounting bracket is provided with a first mounting structure and a second mounting structure;

[0006] An oil-blocking roller assembly, disposed in the first mounting structure, includes a drive unit and an oil-blocking roller rotatable by the drive unit to rotate in a set direction at a set speed, and the oil-blocking roller is configured to abut against the outer peripheral surface of a target roller in a film production apparatus; and,

[0007] An oil scraper assembly disposed in the second mounting structure, the oil scraper assembly comprising an elongated oil scraper configured to abut against the outer peripheral surface of the target roller;

[0008] The oil baffle roller and the oil scraper are arranged in parallel and at intervals.

[0009] The application of this application has the following beneficial effects: By setting up an oil-blocking roller assembly, the oil-blocking roller, which abuts against the target roller and rotates synchronously in opposite directions, can prevent excessive white oil from following the rotation of the target roller. This prevents the white oil from thickening on the outer peripheral surface of the target roller, while retaining a thinner layer of white oil on the outside of the target roller, which facilitates the smooth peeling of thick sheets from the target roller. The synchronous counter-rotation of the oil-blocking roller and the target roller can be achieved by setting up a drive unit. Furthermore, the oil-scraping blade assembly allows for deep cleaning of the white oil remaining on the target roller after film production.

[0010] Optionally, the oil removal device further includes a linear driver disposed on the first mounting structure. The linear driver is connected to the oil baffle roller assembly and is used to drive the oil baffle roller assembly to switch between a first position and a second position. When the oil baffle roller is in the first position, it maintains a distance from the target roller, and when the oil baffle roller is in the second position, it abuts against the target roller.

[0011] Optionally, the first mounting structure includes a fixed plate fixedly mounted on the mounting frame and a lifting plate slidably mounted on the mounting frame. The linear driver is mounted on the fixed plate, the driving unit is mounted on the lifting plate, the oil baffle roller is rotatably mounted on the lifting plate, and the output end of the linear driver is fixedly connected to the lifting plate.

[0012] Optionally, the lifting plate is slidably mounted on the mounting frame via a slide rail structure.

[0013] Optionally, the scraper assembly further includes a connecting member, which includes a connecting section extending axially along the target roller and shaft sections disposed at both ends of the connecting section. The second mounting structure includes two sets of mounting plates fixedly disposed on the mounting frame. The shaft sections and mounting plates are rotatably disposed in correspondence. The scraper is disposed on the connecting section.

[0014] Optionally, the degreasing device further includes an adjustment mechanism disposed on a set of the mounting plates. The adjustment mechanism is connected to the shaft section on the corresponding side and is used to drive the scraper blade to rotate through the connecting member, so as to adjust the tightness of the scraper blade relative to the target roller.

[0015] Optionally, the adjustment mechanism includes a locking component and an operating handle, both of which are mounted on a set of mounting plates. The operating handle is fixedly mounted to the shaft section. The locking component has a locked state and an unlocked state. When the locking component is in the locked state, it can lock and fix the connecting component relative to the mounting plate. When the locking component is in the unlocked state, it is rotatably mounted relative to the connecting component.

[0016] Optionally, the locking component includes a connecting sleeve fixedly disposed on the mounting plate and an adjusting screw disposed on the connecting sleeve. The connecting sleeve has a rotating hole, the shaft section passes through the rotating hole and is fixedly connected to the operating handle, the connecting sleeve has a notch communicating with the rotating hole, the connecting sleeve has a first deformation portion and a second deformation portion formed on both sides of the notch, and the adjusting screw is threadedly connected to the first deformation portion and the second deformation portion and passes through the notch.

[0017] Furthermore, this application also provides a film production equipment, including a frame, a die head, a casting roller, a peeling roller, and a cooling roller. The casting roller, peeling roller, and cooling roller are sequentially rotatably mounted on the frame along the film production travel direction. The die head is arranged above the casting roller. The film production equipment also includes an oil removal device as described in any of the above technical solutions, with the mounting frame disposed on the frame. The oil baffle roller and the oil scraper are located vertically between the die head and the peeling roller, and the oil scraper is located vertically between the peeling roller and the oil baffle roller. The beneficial effects of the film production equipment provided in this application are similar to those of the aforementioned oil removal device, and will not be repeated here.

[0018] Optionally, the bottom of the frame is provided with an oil receiving groove at a position corresponding to the target roller, the oil receiving groove being used to collect white oil dripping from both sides of the target roller.

[0019] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0020] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0021] Figure 1 This is a schematic diagram of the structure of an oil removal device for thin film production equipment provided in an embodiment of this application;

[0022] Figure 2 A schematic diagram of the oil removal device provided in the embodiment from another perspective;

[0023] Figure 3 A schematic diagram of the structure of the film production equipment for the oil removal device provided in the application embodiment;

[0024] Figure 4 This is an axial schematic diagram of the casting roller and the oil baffle roller;

[0025] Figure 5An exploded view of the regulating mechanism in the oil removal device;

[0026] Figure 6 This is a longitudinal sectional view of the locking component and shaft section in the adjustment mechanism.

[0027] The components include: 1. Mounting frame; 10. First mounting structure; 100. Fixing plate; 101. Lifting plate; 11. Second mounting structure; 110. Mounting plate; 12. Slide rail structure; 2. Oil baffle roller assembly; 20. Oil baffle roller; 3. Oil scraper assembly; 30. Oil scraper; 31. Connecting component; 310. Connecting section; 311. Shaft section; 4. Adjusting mechanism; 40. Locking component; 400. Connecting sleeve; 4000. Rotary hole; 4001. Notch; 4002. First deformation part; 4003. Second deformation part; 401. Adjusting screw; 41. Operating handle; 5. Linear driver; 6. Frame; 60. Oil receiving groove; 7. Casting roller; 8. Peeling roller; 9. Cooling roller. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0029] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0030] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] This embodiment provides an oil removal device for thin film production equipment, such as... Figure 1 and Figure 2 As shown, the oil removal device includes a mounting frame 1, an oil-blocking roller assembly 2, and an oil-scraping blade assembly 3. The mounting frame 1 has a first mounting structure 10 and a second mounting structure 11. The oil-blocking roller assembly 2 is mounted on the first mounting structure 10, and the oil-scraping blade assembly 3 is mounted on the second mounting structure 11. The oil-blocking roller assembly 2 includes a drive unit and an oil-blocking roller 20 that can be driven by the drive unit (not shown) to rotate in a set direction at a set speed. The oil-scraping blade assembly 3 includes an elongated oil-scraping blade 30. Figure 3 As shown, in this embodiment, the oil-blocking roller 20 is configured to abut against the outer peripheral surface of the target roller in the film production equipment, and the oil-scraping blade 30 is configured to abut against the outer peripheral surface of the target roller. The oil-blocking roller 20 and the oil-scraping blade 30 are arranged in parallel and at intervals.

[0033] By incorporating the oil-blocking roller assembly 2, the oil-blocking roller 20, which abuts against the target roller and rotates synchronously in the opposite direction, prevents excessive white oil from following the target roller's rotation. This prevents the white oil from thickening on the outer surface of the target roller, while allowing a thinner layer of white oil to remain on the target roller, facilitating the smooth peeling of thicker sheets from the target roller. A drive unit enables the synchronous counter-rotation of the oil-blocking roller 20 and the target roller. Furthermore, the oil-scraping blade assembly 3 allows for deep cleaning of any remaining white oil on the target roller after film production.

[0034] Combination Figure 3 The structure and principle of a film production equipment using the degreasing device provided in this embodiment are described below: The film production equipment includes a frame 6, a die head (not shown in the figure), a casting roller 7, a peeling roller 8, a cooling roller 9, and the degreasing device provided in this embodiment. The casting roller 7, peeling roller 8, and cooling roller 9 are sequentially rotatably mounted on the frame 6 along the film production travel direction, with the die head positioned above the casting roller 7. The mounting frame 1 in the degreasing device is mounted on the frame 6, such that the oil-blocking roller 20 and the oil scraper 30 on the mounting frame 1 are vertically positioned between the die head and the peeling roller 8, and the oil scraper 30 is vertically positioned between the peeling roller 8 and the oil-blocking roller 20.

[0035] During operation, the film production equipment feeds slurry through a die onto the casting roller 7. The slurry forms a thick sheet on the casting roller 7 and is then carried by the casting roller 7 to contact the peeling roller 8. The peeling roller 8 peels the thick sheet off the casting roller 7 and transfers it to the cooling roller 9. After being cooled by the cooling roller 9, the thick sheet proceeds to the stretching station for stretching. In this embodiment, the target roller can be either the casting roller 7 or the cooling roller 9. This embodiment uses the casting roller 7 as the target roller for illustration.

[0036] During film production, white oil precipitated from the slurry adheres to the casting roller 7. To ensure that the amount of white oil adhering to the casting roller 7 is not excessive, the oil-blocking roller 20 is controlled to contact and rotate with the casting roller 7 after the die head unloads the material. Figure 4 As shown, the "setting direction" in the aforementioned "oil baffle roller 20 rotates in a setting direction at a setting speed" refers to the direction opposite to the rotation direction of the casting roller 7. Assuming the casting roller 7 rotates in the R direction (with... Figure 4 If the rotation is viewed from a clockwise perspective, then the oil baffle roller 20 rotates in the r direction (with...). Figure 4 (Viewed from a distance, the rotation is counterclockwise). The "set rotation speed" refers to the rotation speed of the oil baffle roller 20, which ensures that the linear velocity at the contact point between the oil baffle roller 20 and the casting roller 7 is the same. Therefore, designing the oil baffle roller 20 to rotate at a set speed along a set direction ensures that the contact point between the oil baffle roller 20 and the casting roller 7 is along the tangential direction (…). Figure 4 The rollers (in the D direction shown in the diagram) move at the same linear velocity to ensure that there is no significant friction between the oil baffle roller 20 and the casting roller 7.

[0037] The oil-blocking roller 20 prevents excessive white oil from adhering to the surface of the casting roller 7, and causes some white oil to drip downwards from both ends of the casting roller 7. To this end, in this embodiment, an oil-collecting groove 60 is provided at the bottom of the frame 6 at the position corresponding to the target roller. The oil-collecting groove 60 is used to collect the white oil dripping from both sides of the target roller.

[0038] After film production is completed, control the oil-blocking roller 20 to separate from the casting roller 7, and then use the oil scraper assembly 3 to clean the casting roller 7 and scrape off the remaining white oil on the casting roller 7.

[0039] To facilitate switching the position of the oil-blocking roller 20, the oil removal device provided in this embodiment further includes a linear driver 5 disposed on the first mounting structure 10. The linear driver 5 is connected to the oil-blocking roller assembly 2 and is used to drive the oil-blocking roller assembly 2 to switch between a first position and a second position. When the oil-blocking roller 20 is in the first position, it maintains a distance from the target roller; when the oil-blocking roller 20 is in the second position, it abuts against the target roller. Thus, during film production, the oil-blocking roller assembly 2 can be switched to the second position by the linear driver 5; after film production is completed, the oil-blocking roller assembly 2 can be switched to the first position by the linear driver 5.

[0040] Specifically, in this embodiment, the first mounting structure 10 includes a fixed plate 100 fixedly mounted on the mounting frame 1 and a lifting plate 101 slidably mounted on the mounting frame 1. A linear actuator 5 is mounted on the fixed plate 100, a driving unit is mounted on the lifting plate 101, and the oil baffle roller 20 is rotatably mounted on the lifting plate 101. The output end of the linear actuator 5 is fixedly connected to the lifting plate 101. Furthermore, to ensure the stability of the oil baffle roller assembly 2 during position switching, a slide rail structure 12 is provided between the lifting plate 101 and the mounting frame 1 in this embodiment. The lifting plate 101 is slidably mounted on the mounting frame 1 via the slide rail structure 12. The slide rail structure 12 is a common type, including a track with a groove and a slider disposed within the groove. The track is fixedly mounted on the mounting frame 1, and the slider is fixedly mounted on the lifting plate 101. In this embodiment, the linear actuator 5 is a cylinder; optionally, an electric push rod can also be used as the linear actuator 5.

[0041] Combination Figure 1 and Figure 5 As shown, the scraper assembly 3 in this embodiment further includes a connecting member 31. The connecting member 31 includes a connecting section 310 extending axially along the target roller and shaft sections 311 disposed at both ends of the connecting section 310. The scraper 30 is disposed on the connecting section 310. Specifically, in this embodiment, the connecting section 310 forms a slot adapted to the scraper 30. The scraper 30 is partially inserted into the slot and fastened to the connecting section 310 by screws that pass through the connecting section 310. In this embodiment, the scraper 30 is made of rubber or silicone. Using non-metallic materials such as rubber or silicone can reduce the friction on the roller surface of the casting roller 7. In addition, using rubber or silicone can ensure a sealed contact between the scraper 30 and the casting roller 7 when the scraper 30 comes into contact, resulting in a better oil removal and cleaning effect.

[0042] In addition, the second mounting structure 11 in this embodiment includes two sets of mounting plates 110 fixedly mounted on the mounting frame 1, and the shaft segment 311 is rotatably mounted in correspondence with the mounting plate 110.

[0043] Furthermore, to ensure the stability of the scraper assembly 3 during use, and also to facilitate the adjustment of the adhesion between the scraper 30 and the casting roller 7, the degreasing device provided in this embodiment also includes an adjustment mechanism 4 disposed on a set of mounting plates 110. The adjustment mechanism 4 is connected to the shaft section 311 on the corresponding side and is used to drive the scraper 30 to rotate through the connecting member 31, so as to adjust the adhesion between the scraper 30 and the casting roller 7.

[0044] Combination Figure 5 and Figure 6 As shown, the adjustment mechanism 4 in this embodiment includes a locking component 40 and an operating handle 41, both of which are mounted on a set of mounting plates 110. The operating handle 41 is fixedly mounted to the shaft section 311. The locking component 40 has a locked state and an unlocked state. When locked, the locking component 40 can lock the connecting component 31 relative to the mounting plate 110. When unlocked, the locking component 40 can rotate relative to the connecting component 31. Thus, when locked, the connecting component 31 and the scraper blade 30 fixed to it are kept in contact with the casting roller 7 and will not be rotated by the casting roller 7. When unlocked, the operating handle 41 allows control of the rotation of the connecting component 31 and the scraper blade 30 relative to the casting roller 7, thereby adjusting the tightness of the scraper blade 30 relative to the casting roller 7.

[0045] Specifically, in this embodiment, the locking component 40 includes a connecting sleeve 400 fixedly disposed on the mounting plate 110 and an adjusting screw 401 disposed on the connecting sleeve 400. The connecting sleeve 400 has a rotating hole 4000, the shaft section 311 passes through the rotating hole 4000 and is fixedly connected to the operating handle 41. The connecting sleeve 400 has a notch 4001 communicating with the rotating hole 4000. A first deformable portion 4002 and a second deformable portion 4003 are formed on both sides of the notch 4001, respectively. The adjusting screw 401 is threadedly connected to the first deformable portion 4002 and the second deformable portion 4003 and passes through the notch 4001. By turning the adjusting screw 401, the distance between the notch 4001 between the first deformable portion 4002 and the second deformable portion 4003 can be adjusted, thereby changing the inner diameter of the rotating hole 4000. When the adjusting screw 401 is loosened, the shaft section 311 can rotate relative to the rotating hole 4000, thus facilitating adjustment via the operating handle 41. When the adjusting screw 401 is tightened, the shaft section 311 is locked to the connecting sleeve 400, ensuring that the scraper blade 30 is pressed against the casting roller 7. It is easy to understand that during film production, the locking member 40 can be adjusted to the unlocked state, and then the operating handle 41 can be used to rotate the connecting member 31 until the scraper blade 30 is separated from the casting roller 7 (i.e., the scraper blade 30 is not in contact with the casting roller 7), allowing only the oil-blocking roller assembly 2 to remove oil. After film production is completed, the operating handle 41 can be used to rotate the connecting member 31 until the scraper blade 30 is pressed against the casting roller 7, allowing the scraper blade assembly 3 to perform deep cleaning of the casting roller 7.

[0046] In some alternative implementations, a scale may be provided on the operating handle 41 to facilitate clear control of the rotation angle of the operating handle 41 by the operator.

[0047] It is easy to understand that the oil removal device provided in this embodiment can also be applied to the cooling roller 9 on the film production equipment, by changing the size of the mounting frame 1, the oil baffle roller assembly 2 and the oil scraper assembly 3 accordingly.

[0048] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. An oil removal device for thin film production equipment, characterized in that, The oil removal device includes: Mounting bracket (1) is provided with a first mounting structure (10) and a second mounting structure (11); An oil-blocking roller assembly (2) is disposed on the first mounting structure (10). The oil-blocking roller assembly (2) includes a drive unit and an oil-blocking roller (20) that can be driven by the drive unit to rotate in a set direction at a set speed. The oil-blocking roller (20) is configured to abut against the outer peripheral surface of a target roller in a film production device. The scraper assembly (3) is disposed in the second mounting structure (11), the scraper assembly (3) includes an elongated scraper (30) configured to abut against the outer peripheral surface of the target roller; The oil baffle roller (20) and the oil scraper (30) are arranged in parallel and at intervals.

2. The oil removal device as described in claim 1, characterized in that, The oil removal device further includes a linear driver (5) disposed on the first mounting structure (10). The linear driver (5) is connected to the oil baffle roller assembly (2) and is used to drive the oil baffle roller assembly (2) to switch between a first position and a second position. When the oil baffle roller (20) is in the first position, it maintains a distance from the target roller. When the oil baffle roller (20) is in the second position, it abuts against the target roller.

3. The oil removing device according to claim 2, wherein The first mounting structure (10) includes a fixed plate (100) fixedly mounted on the mounting frame (1) and a lifting plate (101) slidably mounted on the mounting frame (1). The linear driver (5) is mounted on the fixed plate (100), the driving unit is mounted on the lifting plate (101), the oil baffle roller (20) is rotatably mounted on the lifting plate (101), and the output end of the linear driver (5) is fixedly connected to the lifting plate (101).

4. The oil removal device as described in claim 3, characterized in that, The lifting plate (101) is slidably mounted on the mounting frame (1) via a slide rail structure (12).

5. The oil removing device according to any one of claims 1 to 4, wherein The scraper assembly (3) further includes a connecting member (31), which includes a connecting section (310) extending axially along the target roller and shaft sections (311) disposed at both ends of the connecting section (310). The second mounting structure (11) includes two sets of mounting plates (110) fixedly disposed on the mounting frame (1). The shaft sections (311) and the mounting plates (110) are rotatably disposed in a one-to-one correspondence. The scraper (30) is disposed on the connecting section (310).

6. The oil removing device according to claim 5, wherein The oil removal device also includes an adjustment mechanism (4) disposed on a set of mounting plates (110). The adjustment mechanism (4) is connected to the shaft section (311) on the corresponding side and is used to drive the scraper blade (30) to rotate through the connecting member (31) so as to adjust the tightness of the scraper blade (30) relative to the target roller.

7. The oil removing device according to claim 6, wherein The adjustment mechanism (4) includes a locking component (40) and an operating handle (41). The locking component (40) and the operating handle (41) are both disposed on a set of mounting plates (110). The operating handle (41) is fixedly disposed with the shaft section (311). The locking member (40) has a locked state and an unlocked state. When the locking member (40) is in the locked state, it can lock and fix the connecting member (31) relative to the mounting plate (110). When the locking member (40) is in the unlocked state, it is rotatably set relative to the connecting member (31).

8. The oil removal device as described in claim 7, characterized in that, The locking component (40) includes a connecting sleeve (400) fixedly disposed on the mounting plate (110) and an adjusting screw (401) disposed on the connecting sleeve (400). The connecting sleeve (400) has a rotating hole (4000). The shaft section (311) passes through the rotating hole (4000) and is fixedly connected to the operating handle (41). The connecting sleeve (400) is provided with a notch (4001) communicating with the rotating hole (4000). The connecting sleeve (400) has a first deformation part (4002) and a second deformation part (4003) respectively formed on both sides of the notch (4001). The adjusting screw (401) is threadedly connected to the first deformation part (4002) and the second deformation part (4003) and passes through the notch (4001).

9. A film production apparatus, comprising a frame (6), a die head, a casting roller (7), a peeling roller (8), and a cooling roller (9), wherein the casting roller (7), the peeling roller (8), and the cooling roller (9) are sequentially rotatably mounted on the frame (6) along the film production travel direction, and the die head is arranged above the casting roller (7), characterized in that, The film production equipment further includes an oil removal device as described in any one of claims 1 to 8, wherein the mounting frame (1) is disposed on the frame (6); The oil-blocking roller (20) and the oil scraper (30) are located vertically between the die head and the stripping roller (8), and the oil scraper (30) is located vertically between the stripping roller (8) and the oil-blocking roller (20).

10. The thin film production equipment as described in claim 9, characterized in that, The bottom of the frame (6) is provided with an oil receiving groove (60) at the position corresponding to the target roller. The oil receiving groove (60) is used to collect white oil dripping from both sides of the target roller.

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