Self-cleaning device for chilling roller of biaxially oriented film production line

Abstract

The utility model relates to a self-cleaning device for a chilling roller of a biaxially oriented film production line, which comprises a self-cleaning roller support component, a linear slide rail component, a self-cleaning roller, a self-cleaning roller base and a pneumatic component. The linear sliding rail assembly is fixed to the self-cleaning roller support assembly, the two ends of the self-cleaning roller are erected on the self-cleaning roller bases, the self-cleaning roller bases are connected with the linear sliding rail assembly in a sliding mode, and the pneumatic assembly is connected with the self-cleaning roller bases on the two sides and used for driving the self-cleaning roller to be switched between a working position and a stopping position. The self-cleaning roller disclosed by the utility model can be used for well cleaning volatile matters, condensate water and the like attached to the surface of the chilling roller, so that the shutdown period of a production line is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of film production technology, specifically to a self-cleaning device for the quench roller of a biaxially oriented film production line. Background Technology

[0002] In biaxially oriented film production, molten plastic is extruded through a die and fed onto a cooling roller for casting. During extrusion, volatiles evaporate from the melt and easily condense to form flocculent dust particles that adhere to the surface of the cooling roller, causing contamination and affecting the product's appearance. This necessitates more frequent shutdowns to clean the cooling roller surface.

[0003] Ensuring the surface of the cooling rollers is clean is a critical quality control point in production. In the current production process, the machine needs to be stopped every few hours to clean the cooling roller surface, which significantly impacts film production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a self-cleaning device for the cooling rollers of a biaxially oriented film production line to solve the aforementioned problems.

[0005] This utility model provides the following technical solution:

[0006] A self-cleaning device for a quench roll in a biaxially oriented film production line includes a self-cleaning roll support assembly, a linear guide rail assembly, a self-cleaning roll, a self-cleaning roll base, and a pneumatic assembly. The self-cleaning roll support assembly is mounted on bearing supports on both sides of the quench roll. The linear guide rail assembly is mounted on the self-cleaning roll support assembly. Both ends of the self-cleaning roll are supported on the self-cleaning roll base. The self-cleaning roll base is slidably connected to the linear guide rail assembly. The pneumatic assembly is connected to the self-cleaning roll bases on both sides and is used to drive the self-cleaning roll to switch between a working position and a stop position.

[0007] Furthermore, the self-cleaning roller support assembly includes a support and an adjusting screw; the support and the adjusting screw are fixedly connected.

[0008] Furthermore, the linear slide rail assembly includes a linear slide rail base and a linear slide rail, wherein the linear slide rail base is mounted on a bracket.

[0009] Furthermore, the pneumatic component is a cylinder or other pneumatic drive device.

[0010] Furthermore, the working width of the self-cleaning roller on the linear guide rail is 500-3000mm.

[0011] This utility model has the following beneficial technical effects:

[0012] This self-cleaning roller can effectively clean the volatiles and condensate adhering to the surface of the chilling roller, extending the downtime of the production line. At the same time, the self-cleaning roller also prevents the chilling roller from being wrapped after the sheet breaks, greatly reducing major production accidents caused by deformation and displacement of air knives, die heads, etc. after the sheet breaks. The overall structure is compact and installed on the frame of the chilling roller, with working and stopping positions set up, which facilitates the daily cycle replacement of white cloth without affecting film threading and normal production operations. Attached Figure Description

[0013] Figure 1 This is a side view schematic diagram of the self-cleaning device for the cooling roller of this utility model;

[0014] Figure 2 This is a front view schematic diagram of the self-cleaning device for the cooling roller of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall structure of the self-cleaning device for the cooling roller of this utility model.

[0016] The attached figures are labeled as follows:

[0017] 1. Self-cleaning roller; 2. Self-cleaning roller base; 3. Linear guide rail assembly; 4. Pneumatic assembly; 5. Self-cleaning roller bracket assembly; 51. Adjusting screw; 52. Bracket; 6. Cooling roller; 7. Die head; 8. Bearing support. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] like Figure 1-3 As shown, a self-cleaning device for a biaxially oriented film production line's cooling roller includes a self-cleaning roller support assembly 5, a linear guide rail assembly 3, a self-cleaning roller 1, a self-cleaning roller base 2, and a pneumatic assembly 4. The self-cleaning roller support assembly 5 is mounted on bearing supports 8 on both sides of the cooling roller 6. The linear guide rail assembly 3 is mounted on the self-cleaning roller support assembly 5. The two ends of the self-cleaning roller 1 are supported on the self-cleaning roller base 2, and the self-cleaning roller base 2 is slidably connected to the linear guide rail assembly 3. The pneumatic assembly 4 is connected to the self-cleaning roller base 2 on both sides and is used to drive the self-cleaning roller 1 to switch between a working position and a stop position. The self-cleaning device does not affect the operation of the cooling roller 6 and the die head 7 in either the working or stop position.

[0021] In this embodiment, the self-cleaning roller 1 has an aluminum core coated with rubber, and a white cloth is wrapped around the surface of the roller. The white cloth on the surface of the self-cleaning roller 1 contacts the surface of the cooling roller 6 and generates friction. The white cloth can wipe away impurities such as volatiles and condensate adhering to the surface of the cooling roller 6, thereby achieving cleaning of the surface of the cooling roller 6. Specifically, in other embodiments, the material of the self-cleaning roller 1 can be adjusted according to the actual application production line requirements, and materials such as EPDM, nitrile rubber, and silicone can be used; the rubber hardness can be set to 30-80 Shore A.

[0022] In this embodiment, the self-cleaning roller support assembly 5 includes a support 52 and an adjusting screw 51. The support 52 and the adjusting screw 51 are fixedly connected. The support 52 is hinged to the hinge seat 81 of the bearing support 8. The adjusting screw 51 is fixedly connected to the fixed seat 82 of the bearing support 8 by a thread and moves along the threaded hole, driving the support 52 to rotate around the bearing support 8, thereby realizing the fine adjustment of the cleaning roller 1 and the cooling roller 6.

[0023] In this embodiment, an adjusting screw 51 is provided, which plays a fine-tuning role. The adjusting screw 51 can precisely adjust the contact pressure between the self-cleaning roller 1 and the chilling roller 6, ensuring that the contact between the two is both tight and that the surface of the chilling roller 6 is not damaged due to excessive pressure. The adjustment of the adjusting screw 51 can be completed manually or automatically, depending on the design and operation requirements of the production line. The linear guide assembly 3 includes a linear guide base and a linear guide, and the linear guide base is mounted on the bracket 52.

[0024] The pneumatic component 4 is a cylinder, which generates power to push the self-cleaning roller base 2 to move between a stop position and a working position on a linear slide rail. The working width of the self-cleaning roller 1 on the linear slide rail is 500-3000 mm.

[0025] The working process of the self-cleaning roller 1 of this utility model is as follows: Initially, the self-cleaning roller 1 is in the stop position. At this time, the self-cleaning roller 1 is not in contact with the cooling roller 6, avoiding interference with the production process during the non-cleaning stage. The pneumatic component 4 is in standby mode, keeping the self-cleaning roller 1 in the stop position. Both ends of the self-cleaning roller 1 are slidably fixed on a linear guide rail via the self-cleaning roller base 2. The linear guide rail provides guidance and support for the movement of the self-cleaning roller 1. The operator triggers a cleaning command manually via a button according to production needs (such as production line running time or the degree of dirt on the surface of the cooling roller 6). After the trigger signal, the pneumatic component 4 receives the command and begins to work. The pneumatic component 4 generates power through a cylinder or pneumatic motor, pushing the self-cleaning roller 1 from the stop position to the working position. Under the push of the pneumatic component 4, the self-cleaning roller 1 moves along the linear guide rail. When the self-cleaning roller 1 moves to the working position, the white cloth on its surface comes into close contact with the surface of the cooling roller 6. During the contact process, the adjusting screw 51 plays a fine-tuning role, precisely adjusting the contact pressure between the self-cleaning roller 1 and the chilling roller 6 to ensure a tight contact without damaging the surface of the chilling roller 6 due to excessive pressure. During normal operation, the chilling roller 6 drives the self-cleaning roller 1 to rotate through contact with it. The white cloth on the surface of the self-cleaning roller 1 contacts and rubs against the surface of the chilling roller 6, wiping away volatiles, condensate, and other impurities adhering to the surface of the chilling roller 6, thus achieving a cleaning effect. After cleaning, the operator triggers a reset command again via a manual button. Upon receiving the reset command, the pneumatic component 4 reverses its operation, pulling the self-cleaning roller 1 from the working position back to the stop position. Under the pull of the pneumatic component 4, the self-cleaning roller 1 moves smoothly along the linear guide rail, returning to the stop position, awaiting the next cleaning command. The white cloth gradually becomes dirty during the cleaning process and needs to be replaced periodically. When replacing the white cloth, the operator can move the self-cleaning roller 1 to the stop position for easy cloth replacement. The replacement of the white cloth is simple and will not have a significant impact on the normal operation of the production line, ensuring the continuity and efficiency of the production line.

[0026] This invention utilizes a pneumatic component 4 for power, a linear guide rail for guidance and support, and an adjusting screw 51 for fine-tuning, enabling the self-cleaning roller 1 to efficiently and accurately complete the cleaning task. This design not only improves the cleaning effect but also reduces downtime, increases production efficiency, and avoids equipment damage and production accidents caused by improper cleaning.

[0027] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A self-cleaning device for the quench rollers of a biaxially oriented film production line, characterized in that, The system includes a self-cleaning roller support assembly (5), a linear slide rail assembly (3), a self-cleaning roller (1), a self-cleaning roller base (2), and a pneumatic assembly (4). The self-cleaning roller support assembly (5) is mounted on bearing supports (8) on both sides of the cooling roller (6). The linear slide rail assembly (3) is fixed on the self-cleaning roller support assembly (5). The two ends of the self-cleaning roller (1) are mounted on the self-cleaning roller base (2). The self-cleaning roller base (2) is slidably connected to the linear slide rail assembly (3). The pneumatic assembly (4) is connected to the self-cleaning roller bases (2) on both sides and is used to drive the self-cleaning roller (1) to switch between the working position and the stop position.

2. The self-cleaning device for the quench roller of the biaxially oriented film production line according to claim 1, characterized in that, The self-cleaning roller support assembly (5) includes a support (52) and an adjusting screw (51); one end of the adjusting screw (51) is connected to the support (52).

3. The self-cleaning device for the quench roller of the biaxially oriented film production line according to claim 2, characterized in that, The linear slide rail assembly (3) includes a linear slide rail base and a linear slide rail, wherein the linear slide rail base is mounted on a bracket (52).

4. The self-cleaning device for the quench roll of the biaxially oriented film production line according to claim 1, characterized in that, The pneumatic component (4) is a cylinder.

5. The self-cleaning device for the quench roller of the biaxially oriented film production line according to claim 3, characterized in that, The working width of the self-cleaning roller (1) on the linear guide rail is 500-3000 mm.

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