A casting device for an extrusion apparatus for film processing
By designing cooling, forming, scraping, and cleaning components on the film production line, the problems of raw material residue and dust ingress during film cooling are solved, achieving uniform film cooling and high-quality film production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOZHI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
In existing film production lines, during the cooling process, when the film comes into contact with the cooling rollers, raw material residues and dust enter the film, affecting film quality.
A casting apparatus was designed, comprising a cooling forming component, a guiding component, a scraping component, a collecting component, and a cleaning component. The raw material on the surface of the cooling roller is scraped off by a scraper, and dust is removed by a cleaning roller and adhesive layer, ensuring the cooling effect and purity of the film.
This effectively avoids unevenness and dust contamination in the film, improving the final quality and purity of the film.
Smart Images

Figure CN224391690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film processing technology, and in particular to a casting device for an extrusion equipment used in film processing. Background Technology
[0002] Patent document CN221953713U discloses an extrusion casting production line for film production, relating to the field of film production technology. This extrusion casting production line includes a casting machine body, a worktable, cooling rollers, guide rollers, a cooling box, ports, auxiliary rollers, a pressure roller, a water inlet pump, a drainage pump, horizontal rollers, a cutting assembly, and vertical rollers. Drying fans are symmetrically arranged between the horizontal and vertical rollers. A winding roller is located on one side of the vertical roller and is driven by a motor. This device, through the cooling box, can cool the film. The cooling box replaces the original multiple sets of cooling rollers, retaining only the first cooling roller in contact with the film. Furthermore, the contact area between the subsequent auxiliary rollers and pressure rollers and the film is significantly reduced compared to the cooling rollers, minimizing film stretching before cooling is complete. This facilitates the production of films with relatively uniform thickness and improves product quality.
[0003] However, during film production, when the film comes into contact with the cooling roller, it is not yet solidified, and some raw material remains on the cooling roller, affecting film production and reducing film quality. Simultaneously, dust adheres to the cooling roller, which can enter the film before solidification, further reducing film quality. Therefore, it is necessary to improve this structure to overcome these defects. Utility Model Content
[0004] The purpose of this invention is to provide a casting device for an extrusion equipment used in film processing, so as to solve the problems mentioned in the background art.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A casting apparatus for a film processing extrusion machine includes a frame and an extrusion die, and further includes:
[0007] A cooling forming assembly is disposed at the bottom of the extrusion die and is used to cool the film.
[0008] A guiding assembly, which is disposed in the frame, guides the film.
[0009] A scraping component is disposed on one side of the cooling and forming component, and the scraping component scrapes the raw material on the surface of the cooling and forming component.
[0010] A collection component, which is located in the frame, collects the scraped material.
[0011] A cleaning component is disposed on one side of the cooling and forming component, and one side of the cleaning component is in contact with the cooling and forming component to clean the cooling and forming component.
[0012] The present invention is further configured such that the cooling forming component includes:
[0013] A cooling roller is rotatably mounted at the bottom of the extrusion die and is used to cool and shape the film.
[0014] The present invention is further configured such that the guide component includes:
[0015] The guide roller is rotatably mounted in the frame and guides the film.
[0016] The present invention is further configured such that the scraping component includes:
[0017] A drive cylinder is mounted in the frame, with its drive end facing the cooling roller.
[0018] A movable support is provided in the frame. One side of the movable support is connected to the drive end of the drive cylinder. The movable support is provided with an assembly space. The movable support moves as the drive end of the drive cylinder moves.
[0019] A pair of support columns are provided, which are symmetrically arranged on the movable bracket. Limiting parts are provided on the support columns.
[0020] A tool holder is mounted on a movable support. The tool holder has a pair of guide grooves that are fitted onto a support column. One side of the tool holder abuts against the limiting part of the support column.
[0021] A pair of limiting springs are provided. The limiting springs are sleeved on the support column. One side of the limiting spring abuts against the movable bracket, and the other side of the limiting spring abuts against the tool holder. The limiting springs limit the tool holder.
[0022] A scraper, which is set in a scraper holder, is used to scrape off the raw material from the surface of the cooling roller.
[0023] The present invention is further configured such that the collecting component includes:
[0024] A collection box is located below the scraper and is used to collect and store the scraped-off raw materials.
[0025] The present invention is further configured such that the cleaning component includes:
[0026] A drive cylinder is installed in the frame, and the drive end of the drive cylinder faces the cooling roller.
[0027] A cleaning bracket is provided, one side of which is connected to the drive end of the drive cylinder. The cleaning bracket has movable grooves on both sides, and a support column is provided in the movable groove.
[0028] The cleaning roller has mounting grooves on both sides, which are fitted onto the support column of the cleaning bracket. The cleaning roller removes dust from the surface of the cooling roller.
[0029] Limiting spring two is sleeved on the support column one of the cleaning bracket. One side of the limiting spring two abuts against the moving groove of the cleaning bracket, and the other side abuts against the top of the cleaning roller. The limiting spring two limits the cleaning roller.
[0030] The present invention is further provided that the surface of the cleaning roller is provided with an adhesive layer, which is made of adhesive tape, and the adhesive layer adsorbs the dust on the surface of the cooling roller.
[0031] The advantages of this utility model are:
[0032] 1. This utility model utilizes the coordinated operation of the scraping components. When the cooling roller is working, the drive cylinder moves the moving bracket and the blade holder forward, causing the scraper to come into contact with the cooling roller and scrape off the raw material on the surface of the cooling roller. This ensures the cooling effect of the raw material and also avoids unevenness of the film due to material residue, thereby effectively increasing the final quality of the film.
[0033] 2. This utility model, by setting up a cleaning component, uses a drive cylinder to drive the cleaning roller to contact the cooling roller, cleaning the adhesive layer on the surface of the cleaning roller, thereby collecting dust on the surface of the cooling roller. This prevents the dust from entering the interior of the film during the cooling process, thus affecting the purity and quality of the film and effectively improving the quality of the final finished film.
[0034] 3. This utility model improves upon the setting of a limiting spring and a second limiting spring, which ensures that the scraper and cleaning roller can fully contact the cooling roller without causing damage to the cooling roller, making it highly reliable. Attached Figure Description
[0035] Figure 1 This is a perspective view of the casting device of the extrusion equipment for film processing proposed in this utility model.
[0036] Figure 2 This is a schematic diagram of the internal structure of the casting device of the extrusion equipment for film processing proposed in this utility model.
[0037] Figure 3 This is a right view of the casting device of the extrusion equipment for film processing proposed in this utility model.
[0038] Figure 4 This is a schematic diagram of the scraper proposed in this utility model.
[0039] Figure 5 This is a schematic diagram of the cleaning bracket proposed in this utility model.
[0040] Figure 6 This utility model proposes Figure 5 A magnified view of a portion of point A in the middle.
[0041] Figure 7 This utility model proposes Figure 3 A magnified view of a section at point B.
[0042] Numerical designations: Frame 100, Extrusion Die 101, Cooling Roller 110, Guide Roller 210, Drive Cylinder 310, Moving Support 320, Support Column 330, Limiting Part 331, Tool Holder 340, Limiting Spring 350, Scraper 360, Collection Box 410, Drive Cylinder I 510, Cleaning Support 520, Cleaning Roller 530, Adhesive Layer 531, Limiting Spring II 540 Detailed Implementation
[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0044] Example 1
[0045] like Figure 1-7As shown, the present invention discloses a casting device for a film processing extrusion equipment, comprising a frame 100 and an extrusion die 101, and further comprising a cooling and forming component, a guiding component, a scraping component, a collecting component, and a cleaning component. The cooling and forming component is disposed at the bottom of the extrusion die and cools the film. The guiding component is disposed in the frame and guides the film. The scraping component is disposed on one side of the cooling and forming component and scrapes the raw material on the surface of the cooling and forming component. The collecting component is disposed in the frame and collects the scraped raw material. The cleaning component is disposed on one side of the cooling and forming component, and one side of the cleaning component is in contact with the cooling and forming component and cleans the cooling and forming component.
[0046] The present invention is further configured such that the cooling forming component includes a cooling roller 110, which is rotatably disposed at the bottom of the extrusion die, and the film is cooled and formed by the cooling roller.
[0047] The present invention is further configured such that the guiding component includes a guide roller 210, which is rotatably disposed in the frame and guides the film.
[0048] The present invention is further configured such that the scraping assembly includes a drive cylinder 310, a movable bracket 320, support columns 330, a blade holder 340, a limiting spring 350, and a scraper 360. The drive cylinder is disposed in the frame, with its drive end facing the cooling roller. The movable bracket is disposed in the frame, with one side connected to the drive end of the drive cylinder. The movable bracket has an assembly space and moves as the drive end of the drive cylinder moves. A pair of support columns are provided, and the support columns are symmetrical. The tool holder is mounted on a movable support column with a limiting part 331. The tool holder has a pair of guide grooves fitted onto the support column. One side of the tool holder abuts against the limiting part of the support column. A pair of limiting springs are fitted onto the support column, with one side abutting against the movable support column and the other side abutting against the tool holder. The limiting springs limit the tool holder. A scraper is mounted in the tool holder and scrapes the raw material from the surface of the cooling roller.
[0049] In this embodiment, the collection component includes a collection box 410, which is disposed below the scraper and collects and stores the scraped raw materials.
[0050] In this embodiment, the cleaning assembly includes a drive cylinder 510, a cleaning bracket 520, a cleaning roller 530, and a limiting spring 540. The drive cylinder 510 is disposed in the frame, with its drive end facing the cooling roller. One side of the cleaning bracket is connected to the drive end of the drive cylinder 510. The cleaning bracket has moving grooves 521 on both sides, with support columns 522 disposed in the moving grooves. The cleaning roller has assembly grooves on both sides, which are fitted onto the support columns of the cleaning bracket. The cleaning roller removes dust from the surface of the cooling roller. The limiting spring 540 is fitted onto the support columns of the cleaning bracket. One side of the limiting spring 540 abuts against the moving groove of the cleaning bracket, and the other side abuts against the top of the cleaning roller, thus limiting the cleaning roller.
[0051] Example 2
[0052] like Figure 1-7 As shown, the difference between this embodiment and embodiment 1 is that in this embodiment, the surface of the cleaning roller is provided with an adhesive layer 531, which has a certain degree of stickiness and adsorbs the dust on the surface of the cooling roller.
[0053] The working principle of this utility model:
[0054] During operation, the extrusion die evenly extrudes the film onto the cooling roller, which cools the film. Simultaneously, the drive cylinder moves the moving bracket toward the cooling roller, and the blade holder moves with the moving bracket, driving the scraper toward the cooling roller. The scraper abuts against the cooling roller, and the drive cylinder continues to move forward a certain distance. The blade holder compresses the limiting spring, and the limiting spring generates a reaction force, ensuring that the scraper fully abuts against the cooling roller. The scraper scrapes off the material remaining on the cooling roller, causing it to fall into the collection box. At the same time, the drive cylinder moves the cleaning bracket forward, causing the cleaning roller to contact the cooling roller. After the cooling roller abuts against the surface of the cooling roller, the limiting spring is compressed by both sides of the cleaning roller, generating a reaction force to ensure full contact between the cleaning roller and the cooling roller. At the same time, the adhesive layer on the surface of the cleaning roller removes dust from the cooling roller.
[0055] In the description of this utility model, it should be noted that when terms such as "upper," "lower," "inner," "outer," "left," and "right" appear to indicate orientation or positional relationships, they should be understood as being based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use, or the orientation or positional relationships commonly understood by those skilled in the art. These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, when terms such as "first" and "second" appear, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that unless otherwise explicitly specified and limited, terms such as "installation," "setting," and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A casting apparatus for an extrusion machine used in film processing, comprising a frame and an extrusion die, characterized in that, Also includes: A cooling forming assembly is disposed at the bottom of the extrusion die and is used to cool the film. A guiding assembly, which is disposed in the frame, guides the film. A scraping component is disposed on one side of the cooling and forming component, and the scraping component scrapes the raw material on the surface of the cooling and forming component. A collection component, which is located in the frame, collects the scraped material. A cleaning component is disposed on one side of the cooling and forming component, and one side of the cleaning component is in contact with the cooling and forming component to clean the cooling and forming component.
2. The casting apparatus of an extrusion machine for film processing according to claim 1, characterized in that, The cooling forming assembly includes: A cooling roller is rotatably mounted at the bottom of the extrusion die and is used to cool and shape the film.
3. The casting apparatus of an extrusion machine for film processing according to claim 1, characterized in that, The guiding components include: The guide roller is rotatably mounted in the frame and guides the film.
4. The casting apparatus of an extrusion equipment for film processing according to claim 2, characterized in that, The scraping components include: A drive cylinder is mounted in the frame, with its drive end facing the cooling roller. A movable support is provided in the frame. One side of the movable support is connected to the drive end of the drive cylinder. The movable support is provided with an assembly space. The movable support moves as the drive end of the drive cylinder moves. A pair of support columns are provided, which are symmetrically arranged on the movable bracket. Limiting parts are provided on the support columns. A tool holder is mounted on a movable support. The tool holder has a pair of guide grooves that are fitted onto a support column. One side of the tool holder abuts against the limiting part of the support column. A pair of limiting springs are provided. The limiting springs are sleeved on the support column. One side of the limiting spring abuts against the movable bracket, and the other side of the limiting spring abuts against the tool holder. The limiting springs limit the tool holder. A scraper, which is set in a scraper holder, is used to scrape off the raw material from the surface of the cooling roller.
5. The casting apparatus of an extrusion equipment for film processing according to claim 4, characterized in that, The collection components include: A collection box is located below the scraper and is used to collect and store the scraped-off raw materials.
6. The casting apparatus of an extrusion machine for film processing according to claim 2, characterized in that, The cleanup components include: A drive cylinder is installed in the frame, and the drive end of the drive cylinder faces the cooling roller. A cleaning bracket is provided, one side of which is connected to the drive end of the drive cylinder. The cleaning bracket has movable grooves on both sides, and a support column is provided in the movable groove. The cleaning roller has mounting grooves on both sides, which are fitted onto the support column of the cleaning bracket. The cleaning roller removes dust from the surface of the cooling roller. Limiting spring two is sleeved on the support column one of the cleaning bracket. One side of the limiting spring two abuts against the moving groove of the cleaning bracket, and the other side abuts against the top of the cleaning roller. The limiting spring two limits the cleaning roller.
7. The casting apparatus for an extrusion machine for film processing according to claim 6, characterized in that, The surface of the cleaning roller is covered with an adhesive layer made of adhesive tape, which adsorbs dust from the surface of the cooling roller.