An electrothermal film coating device

Abstract

The utility model discloses an electric heating film laminating device, including the box body, have the feed port and the discharge port, at least one group's hot rolling roller group, hot rolling roller group including two parallelly arranged hot press rollers, hot press roller can rotate the setting in the box body, cleaning assembly, set up in the box body with hot rolling roller group is matched, to the surface of rotating hot rolling roller group implements the scraping and clearing treatment.

Description

Technical Field

[0001] This utility model relates to a film coating device, and in particular to an electric heating film coating device. Background Technology

[0002] Electric heating film is widely used in products such as underfloor heating, tatami mats, and heated wall paintings due to its soft texture and uniform heating. To improve the lifespan and safety of electric heating film, a lamination process is required on its surface. Current lamination operations typically involve pressure bonding using hot rollers in an oven. However, during the pressure bonding process, some adhesive is squeezed out and remains on the hot rollers. If this adhesive is not cleaned promptly, it can harden due to the high oven temperature. If this hardened adhesive acts on subsequent films, it can cause irreversible compressive damage, reducing the quality of the laminated electric heating film. In severe cases, large hardened adhesive particles can even cause the electric heating film to break, posing a safety hazard. Therefore, a system capable of regularly cleaning the interior of the electric heating film lamination device is essential to ensure its proper functioning. Utility Model Content

[0003] The purpose of this invention is to provide an electric heating film coating device to solve the problem that hard adhesive particles are easily left on the hot press roller after long-term use of existing electric heating film coating devices, which reduces the quality of electric heating film coating.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An electrothermal film coating device, comprising

[0006] The housing has an inlet and an outlet;

[0007] At least one set of hot rolling rolls, wherein the hot rolling rolls include two parallel hot pressing rolls, and the hot pressing rolls are rotatably mounted in the housing;

[0008] A cleaning component, housed within a housing and matched to the hot rolling mill assembly, is used to perform a scraping cleaning process on the surface of the rotating hot rolling mill assembly.

[0009] Preferably, the cleaning assembly includes symmetrical supports spanning the upper and lower sides of the heating film. Each support includes a horizontal extension and a vertical extension, which are connected in an L-shape. A scraper is provided on the horizontal extension, with the blade of the scraper adhering to the surface of the hot press roller. A shielding brush parallel to the horizontal extension is provided on the vertical extension, with the end of the shielding brush contacting the surface of the hot press roller. The support, scraper, and shielding brush form a chamber for storing impurities.

[0010] Preferably, the shielding brush is detachably connected to the vertical extension.

[0011] Preferably, an elongated hole is provided on the horizontal extension, and a guide post is provided on the scraper that slides into the elongated hole. A spring is connected to the guide post, and the other end of the spring is connected to the vertical extension to apply a pulling force to the scraper to pull it away from the surface of the hot press roller. A pushing component is also provided on the bracket to push the scraper against the surface of the hot press roller when it is necessary to clean the surface of the hot press roller.

[0012] Preferably, the pushing component includes a guide bar slidably disposed on the horizontal extension, a guide slope A provided on the side of the guide bar facing the scraper, a guide slope B provided on the scraper, the guide slope A and the guide slope B being fitted together, and pulling the guide bar causing the guide slope A and the guide slope B to slide relative to each other, one end of the guide bar being provided with a screw protruding from the housing, an adjusting nut being screwed onto the screw, and one end of the adjusting nut being rotatably mounted on the housing.

[0013] Preferably, a dust collection device is also provided on the top of the box.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This solution, by setting up a cleaning component, scrapes and cleans the surface of the rotating hot press roller to ensure that impurities such as glue will not remain on the hot press roller, thereby fundamentally avoiding glue residue and subsequent hardening that could cause irreparable damage to the electrothermal film. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a structural diagram of the cleanup component.

[0018] Reference numerals: 1. Box body; 2. Hot rolling roll assembly; 21. Hot pressing roll; 3. Cleaning assembly; 31. Support; 311. Horizontal extension; 312. Vertical extension; 313. Oblong hole; 32. Scraper; 321. Guide post; 33. Masking brush; 34. Spring; 35. Pushing assembly; 351. Guide slope A; 352. Guide slope B; 353. Guide bar; 354. Screw; 355. Adjusting nut; 4. Dust collection device. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-3 The illustrated electrothermal film coating device includes a housing 1, with an inlet at one end and an outlet at the other end, through which electrothermal film and adhesive film enter and exit the housing. A heating chamber is installed inside the housing to heat the electrothermal film and adhesive film entering through the inlet, thereby improving the lamination effect between the electrothermal film and adhesive film.

[0023] like Figure 2 As shown, at least one set of hot rolling rollers 2 is provided inside the housing. This set consists of two parallel hot pressing rollers 21. The two hot pressing rollers are rotatably mounted inside the housing, and their outer ends are driven by a motor and gear structure. When the electrothermal film and the adhesive film pass between the two hot pressing rollers, the hot pressing rollers apply pressure to the adhesive film, enabling the adhesive film to bond with the electrothermal film.

[0024] It's important to know that when the hot press roller applies pressure to the adhesive film, the adhesive layer on the film is prone to overflowing to both sides due to the pressure. This overflowed adhesive will remain on the hot press roller. After continuously losing moisture in the chamber, this residual adhesive will become hard adhesive particles. If these particles are pressed onto the adhesive film during subsequent lamination processes, the adhesive film will be damaged by the pressure of these hard adhesive particles, affecting the lamination quality of the electrothermal film.

[0025] To this end, this solution also includes a cleaning component 3 in the housing, which can scrape and clean the surface of the rotating hot press rollers to keep the surface of each hot press roller in the hot press roller group clean.

[0026] Specifically, the cleaning component 3 includes symmetrical supports 31 spanning the upper and lower sides of the electrothermal film passing through the hot press roller assembly. Each support is specifically composed of a horizontal extension 311 and a vertical extension 312. The horizontal and vertical extensions are connected in an L-shaped structure, with the upper support having an upward-extending vertical extension, and the lower support having a downward-extending vertical extension.

[0027] like Figure 2 , Figure 3 As shown, a scraper 32 is also installed on the horizontal extension. The blade of the scraper is in contact with the surface of the hot press roller 21 to perform scraping and cleaning treatment on the surface of the hot press roller during rotation. In addition, it should be noted that in order to prevent the scraped hard rubber particles from falling onto the rubber film surface and being carried between subsequent hot rolling rollers, a shielding brush 33 is also installed on the vertical extension of this solution. The end of the shielding brush is elastically pressed against the surface of the hot press roller 21, so that the shielding brush 33, the bracket 31 and the scraper 32 form a chamber that can store the scraped hard rubber particles.

[0028] Furthermore, in this design, the end of the masking brush will be worn during contact with the surface of the hot press roller. To ensure the long-term effectiveness of the masking brush, it is a replaceable structure. Specifically, the masking brush 33 can be detachably mounted on the vertical extension by a snap-fit ​​mechanism.

[0029] Furthermore, it should be noted that the scraper is a rigid structure. If it remains in contact with the hot press roller surface for extended periods, wear between the scraper blade and the roller surface is inevitable. This not only affects the scraper's lifespan but also causes the roller surface to become uneven, impacting the coating effect. Therefore, this design ensures that the scraper blade only contacts the hot press roller surface when cleaning is required. Specifically, an elongated hole 313 is provided in the horizontal extension 311. A guide post 321 is provided on the scraper 32, passing through the elongated hole and sliding within it. A spring 34 is connected to the guide post 321, with its other end connected to the numerical extension of the bracket. It is important to understand that when the scraper blade presses against the hot press roller surface, the spring is stretched, giving the scraper a tendency to return to its original position and disengage from the roller surface during operation. In order to control the working state of the scraper, the cleaning assembly is also equipped with a pushing assembly 35. When it is necessary to clean the surface of the hot press roller, the scraper is driven to move towards the hot press roller until the blade of the scraper contacts the surface of the hot press roller.

[0030] It should be noted that the pushing component 35 in this solution includes a guide bar 353 slidably disposed on the horizontal extension 311. Specifically, as... Figure 2 As shown, the horizontal extension has a guide groove in which the guide bar slides to allow for sliding along the length of the support. Additionally, a guide slope B352 is provided on the guide bar, and a guide slope A351 is provided on the back of the scraper. Guide slopes A and B are fitted together so that, during the sliding of the guide bar, they can undergo a misaligned movement, which in turn moves the scraper towards the hot press roller. It should be noted that, to maintain this state after the scraper blade contacts the surface of the hot press roller, a screw 354 extending in the same direction is also provided at one end of the guide bar, extending out of the housing to the outside. Simultaneously, an adjusting nut 355 is rotatably mounted on the side wall of the housing, with the screw threaded to the adjusting nut, so that rotating the adjusting nut drives the guide bar to slide along the length of the support. It should also be noted that, in the above embodiments, the material of the scraper can be selected to be a material with a lower hardness than the hot press roller, such as hard rubber, aluminum, stainless steel, etc., so as to minimize the wear on the hot press roller when it inevitably comes into contact with it.

[0031] In addition, it should be noted that in this solution, a set of dust collection devices 4 can be installed on the top of the box 1 to continuously collect dust inside the box, reduce dust in the box, and prevent dust from falling between the adhesive film and the heating film and affecting the film coating quality.

[0032] Working Principle: During the electrothermal film coating process, some adhesive inevitably gets squeezed out and remains on the hot press roller. This residual adhesive hardens after losing moisture. If these hardened adhesive particles fall between the film and the hot press roller, the film will inevitably be damaged by the adhesive particles, affecting the coating quality. To address this, after coating for a period of time, the adjusting nut can be rotated to allow the guide bar to move horizontally. Driven by the horizontally moving guide bar, guide slope A and guide slope B slide relative to each other, thereby driving the scraper to move towards the hot press roller. Finally, the blade of the scraper presses against the surface of the hot press roller, thus scraping off the hardened adhesive particles adhering to the surface of the hot press roller, keeping the surface of the hot press roller clean. It is important to note that the scraped adhesive particles fall into the cavity formed by the shielding brush, support, and scraper, preventing the hardened adhesive particles from falling back onto the film surface.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrothermal film coating device, characterized in that: include The box body (1) has a feed inlet and a discharge outlet; At least one set of hot rolling rolls (2), the hot rolling rolls (2) including two parallel hot pressing rolls (21), the hot pressing rolls (21) being rotatably disposed in the housing (1); A cleaning component (3) is disposed in the housing (1) and matched with the hot rolling roll assembly (2) to perform a scraping cleaning treatment on the surface of the rotating hot rolling roll assembly (2).

2. The electrothermal film coating device as described in claim 1, characterized in that: The cleaning assembly (3) includes a bracket (31) symmetrically arranged across the upper and lower sides of the electric heating film. The bracket (31) includes a horizontal extension (311) and a vertical extension (312). The horizontal extension (311) and the vertical extension (312) are connected in an L-shape. A scraper (32) is provided on the horizontal extension (311). The blade of the scraper (32) is attached to the surface of the hot press roller (21). A shielding brush (33) parallel to the horizontal extension (311) is provided on the vertical extension (312). The end of the shielding brush (33) is in contact with the surface of the hot press roller (21). The bracket (31), the scraper (32) and the shielding brush (33) form a chamber for storing impurities.

3. The electrothermal film coating device as described in claim 2, characterized in that: The shielding brush (33) is detachably connected to the vertical extension (312).

4. The electrothermal film coating device as described in claim 3, characterized in that: The horizontal extension (311) has an elongated hole (313), and the scraper (32) is provided with a guide post (321) that slides into the elongated hole (313). A spring (34) is connected to the guide post (321), and the other end of the spring (34) is connected to the vertical extension (312) to apply a pulling force to the scraper (32) to pull it away from the surface of the hot press roller (21). The bracket (31) is also provided with a pushing component (35) to push the scraper (32) against the surface of the hot press roller (21) when it is necessary to clean the surface of the hot press roller (21).

5. The electrothermal film coating device as described in claim 4, characterized in that: The pushing component (35) includes a guide bar (353) slidably mounted on the horizontal extension (311). The guide bar (353) has a guide slope A (351) on the side facing the scraper (32). The scraper (32) has a guide slope B (352). The guide slope A (351) and the guide slope B (352) are fitted together. Pulling the guide bar (353) causes the guide slope A (351) and the guide slope B (352) to slide relative to each other. One end of the guide bar (353) is provided with a screw (354) that extends out of the housing (1). An adjusting nut (355) is screwed onto the screw (354). One end of the adjusting nut (355) is rotatably mounted on the housing (1).

6. The electrothermal film coating device as described in claim 1, characterized in that: The top of the box (1) is also equipped with a dust collection device (4).

Images