A hot melt film rapid blade coating device

Abstract

The utility model discloses a kind of hot melt film fast blade coating equipment, it is related to hot melt film production technical field, the utility model is extruded to material by the cooperation of extrusion component and blade coating component, melt raw material is extruded to material and installation specified thickness even flattening, improve practicality, realize the ability of blade coating hot melt film;Again by the cooperation of heat preservation component and forming assembly, it is convenient to control hot melt film temperature in segments to avoid hot melt film advance cooling shrinkage influence blade coating quality, improve forming quality, realize the ability of device stable high-quality blade coating hot melt film;Finally solve the problem that raw material advance cooling leads to poor forming quality in the blade coating process of existing equipment;Including extruder, extruder front end surface is equipped with extrusion component, extrusion component front end is equipped with blade coating box, blade coating box is equipped with blade coating mechanism, and blade coating mechanism includes extrusion component and forming assembly composition.

Description

Technical Field

[0001] This utility model relates to the field of hot melt film production technology, and in particular to a rapid hot melt film coating equipment. Background Technology

[0002] Hot melt film is a functional film that bonds materials by heating and melting. It is widely used in various fields such as automobiles, construction, textiles, electronics, footwear, and packaging. Its production process varies depending on the application and material properties. Hot melt film rapid coating is an efficient and uniform coating process, widely used in the production of hot melt adhesive films, waterproof membranes, electronic packaging films, and other products. Its core is to uniformly coat the molten hot melt material onto the substrate surface with a scraper, and form a functional film after cooling and shaping. In existing scraping equipment, the raw material often cools naturally during the scraping process, resulting in decreased fluidity and premature shrinkage, which greatly affects subsequent molding processes and significantly reduces molding quality. Therefore, this utility model improves the existing equipment to address the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid hot melt film coating device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a hot melt film rapid coating device, including an extruder, an extrusion assembly is provided on the front end face of the extruder, a coating box is provided at the front end of the extrusion assembly, a coating mechanism is provided inside the coating box, and the coating mechanism includes a coating assembly and a forming assembly.

[0005] Preferably, the extrusion assembly includes a nozzle, which is fixed to the extrusion port on the front end face of the extruder by fixing bolts. A mold is fixed to the front end face of the nozzle, and a flow channel is opened in the mold with the flow channel opening located in the middle of the lower end face. The flow channel opening is elongated.

[0006] Preferably, the coating assembly includes a substrate, which is the fabric to be coated; the top surface of the substrate is covered with a coating, which is formed by coating and cooling of molten raw material; the substrate extends from a substrate roll, which is rotatably mounted on the lower front end of the coating box; the substrate roll extends rearward; the substrate wraps around the outer side of the flattening wheel for half a circle and then continues to extend horizontally forward; and a heat insulation component is provided below the horizontal extension section of the substrate.

[0007] Preferably, the flattening wheel is rotatably mounted at the rear end of the middle of the coating box, a mold is provided above the horizontal extension section of the substrate, a scraper is provided at a certain distance from the front end of the mold, the scraper is an arc-shaped ceramic wear-resistant vertical plate, the top surface of the scraper is fixed to the bottom surface of the adjustment frame by bolts, the adjustment frame is composed of a horizontal mounting plate and hydraulic rods fixed to the left and right sides of the horizontal mounting plate, and the top end of the hydraulic rod is fixed to the top surface inside the coating box.

[0008] Preferably, the insulation component includes an insulation pad, the top surface of which abuts against the bottom surface of the horizontal extension of the substrate, and a heating wire is fixedly installed on the bottom surface of the insulation pad. The heating wire is wrapped around and fixed to the bottom surface of the insulation pad and passes through the coating box to connect to the power supply equipment.

[0009] Preferably, the molding assembly includes a rubber embossing wheel, the outer side of which has protrusions for transferring the target texture, the outer side of which abuts against the coating, a cooling roller is provided above the front end of the rubber embossing wheel, a cooling channel is provided inside the cooling roller, the cooling channel is connected to a water supply device on the left and right, a guide roller is provided below the front of the cooling roller, and the guide roller, the cooling roller and the rubber embossing wheel are all rotatably connected inside the coating box.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By combining the extrusion component and the coating component, this utility model facilitates the extrusion of molten raw materials onto the material and evenly spreads them to a specified thickness, improving practicality and realizing the ability to coat hot melt film; furthermore, by combining the heat preservation component and the forming component, it facilitates the segmented control of the hot melt film temperature, thereby avoiding premature cooling and shrinkage of the hot melt film from affecting the coating quality, improving the forming quality, and realizing the ability of the device to stably coat high-quality hot melt film; finally, it solves the problem of poor forming quality caused by premature cooling of raw materials during the coating process in existing equipment. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall appearance of the device proposed in this utility model;

[0013] Figure 2 This is a three-dimensional schematic diagram of the extrusion assembly structure proposed in this utility model;

[0014] Figure 3 This is a three-dimensional schematic diagram of the coating mechanism structure proposed in this utility model;

[0015] Figure 4 This is a cross-sectional schematic diagram of the coating mechanism structure proposed in this utility model;

[0016] Figure 5 This is a three-dimensional schematic diagram of the thermal insulation component structure proposed in this utility model.

[0017] The numbers in the diagram are: 1. Extruder; 2. Coating box; 3. Nozzle; 4. Die; 5. Substrate; 6. Coating; 7. Substrate roll; 8. Flattening wheel; 9. Scraper; 10. Adjusting frame; 11. Rubber embossing wheel; 12. Cooling roller; 13. Guide roller; 14. Insulation pad; 15. Heating wire. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figure 1-5 This utility model discloses a rapid hot melt film coating device, comprising an extruder 1, an extrusion assembly on the front end of the extruder 1, a coating box 2 at the front end of the extrusion assembly, and a coating mechanism inside the coating box 2. The coating mechanism comprises a coating assembly and a forming assembly. The modular design facilitates device maintenance and upgrades, improving practicality. The extrusion assembly includes a nozzle 3, which is fixed to the extrusion port on the front end of the extruder 1 by fixing bolts. A mold 4 is fixed to the front end of the nozzle 3, and a flow channel is formed inside the mold 4 with the flow channel opening located in the middle of the lower end face. The flow channel opening is elongated. The molten raw material is extruded from the nozzle 3 by the extruder 1 and divided into... The elongated waterfall-shaped flow helps the scraper 9 to evenly scrape the raw material, improving practicality. The forming component includes a rubber embossing wheel 11, with raised areas on the outer side of the rubber embossing wheel 11 for transferring the target texture. The outer side of the rubber embossing wheel 11 abuts against the coating 6. A cooling roller 12 is located above the front end of the rubber embossing wheel 11, and a cooling channel is formed inside the cooling roller 12. The cooling channel is connected to a water supply device on both sides. A guide roller 13 is located below the front of the cooling roller 12. The guide roller 13, the cooling roller 12, and the rubber embossing wheel 11 are all rotatably connected inside the scraper box 2. The texture is printed by the rubber embossing wheel 11 and cooled and formed by the cooling roller 12 to complete the coating process, improving practicality.

[0020] In this utility model, to solve the problem of poor forming quality caused by premature cooling of raw materials during the coating process in existing equipment, the following technical solution is adopted: The coating assembly includes a substrate 5, which is the cloth to be coated; the top surface of the substrate 5 is covered with a coating 6, which is formed by coating and cooling of molten raw materials; the substrate 5 extends from a substrate roll 7, which is rotatably mounted on the lower front end of the coating box 2; the substrate roll 7 extends the substrate 5 backward; the substrate 5 surrounds the outer side of the flattening wheel 8 for half a circle and then continues to extend horizontally forward; a heat preservation component is provided below the horizontal extension section of the substrate 5; the flattening wheel 8 is rotatably mounted at the middle rear end of the coating box 2; a mold 4 is provided above the horizontal extension section of the substrate 5; the front end of the mold 4... A scraper 9 is installed at a certain distance. The scraper 9 is an arc-shaped ceramic wear-resistant vertical plate. The top surface of the scraper 9 is fixed to the bottom surface of the adjusting frame 10 by bolts. The adjusting frame 10 consists of a horizontal mounting plate and hydraulic rods fixed to the left and right sides of the horizontal mounting plate. The top of the hydraulic rods is installed and fixed to the top surface inside the scraping box 2. The heat insulation component includes a heat insulation pad 14. The top surface of the heat insulation pad 14 abuts against the bottom surface of the horizontal extension section of the substrate 5. A heating wire 15 is installed and fixed on the bottom surface of the heat insulation pad 14. The heating wire 15 is fixed around the bottom surface of the heat insulation pad 14 and passes through the scraping box 2 to connect to the power supply equipment. Through the cooperation of the heat insulation component and the forming component, it is easy to control the temperature of the hot melt film in sections, thereby avoiding the hot melt film from cooling and shrinking in advance, which would affect the scraping quality and improve the forming quality.

[0021] Working principle: When using this utility model, first power is supplied to all electrical equipment, then the extruder 1 is started to melt and extrude the raw material. The molten raw material first enters the mold 4 through the nozzle 3, and after being diverted in the flow channel of the mold 4, it forms a long strip flow on the substrate 5. Driven by the substrate 5, it approaches the scraper 9, and is then gradually spread outward from the center by the arc-shaped scraper 9, thereby covering the top surface of the substrate 5. During this period, the wear of the scraper 9 can be adjusted in real time by the adjusting frame 10 to ensure the thickness of the coating 6. Then the flattened coating 6 passes through the rubber embossing wheel 11 and is pressed into a texture. Then it continues to move to the cooling roller 12 to make the temperature of the coating 6 drop rapidly, thereby cooling and solidifying the coating 6 and adsorbing it onto the substrate 5. Finally, it is turned by the guide roller 13 and extends horizontally out of the coating box 2 and enters the next process, thus completing the rapid coating of the hot melt film.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rapid hot melt film coating device, comprising an extruder (1), characterized in that: The extruder (1) has an extrusion assembly on its front end face, and a coating box (2) is provided at the front end of the extrusion assembly. The coating box (2) is provided with a coating mechanism, which consists of a coating assembly and a forming assembly. The coating assembly includes a substrate (5), which is the fabric to be coated; the top surface of the substrate (5) is covered with a coating (6), which is formed by coating and cooling of molten raw material; the substrate (5) extends from the substrate roll (7), which is rotatably mounted on the lower front end of the coating box (2); the substrate roll (7) extends the substrate (5) backward; the substrate (5) extends horizontally forward after circling half a circle around the outer side of the flattening wheel (8); and a heat insulation component is provided below the horizontal extension section of the substrate (5).

2. The hot melt film rapid coating equipment according to claim 1, characterized in that: The extrusion assembly includes a nozzle (3), which is fixed to the extrusion port on the front end face of the extruder (1) by fixing bolts. A mold (4) is fixed to the front end face of the nozzle (3). A flow channel is opened in the mold (4) and the flow channel opening is opened in the middle of the lower end face. The flow channel opening is elongated.

3. The hot melt film rapid coating equipment according to claim 1, characterized in that: The flattening wheel (8) is rotatably installed at the rear end of the middle of the coating box (2). A mold (4) is provided above the horizontal extension of the substrate (5). A scraper (9) is provided at a certain distance from the front end of the mold (4). The scraper (9) is an arc-shaped ceramic wear-resistant vertical plate. The top surface of the scraper (9) is fixed to the bottom surface of the adjustment frame (10) by bolts. The adjustment frame (10) consists of a horizontal mounting plate and hydraulic rods fixed to the left and right sides of the horizontal mounting plate. The top of the hydraulic rod is installed and fixed to the top surface inside the coating box (2).

4. The hot melt film rapid coating equipment according to claim 1, characterized in that: The insulation component includes an insulation pad (14), the top surface of which abuts against the bottom surface of the horizontal extension of the substrate (5), and a heating wire (15) is installed and fixed on the bottom surface of the insulation pad (14). The heating wire (15) is fixed around the bottom surface of the insulation pad (14) and passes through the coating box (2) to connect to the power supply equipment.

5. The hot melt film rapid coating equipment according to claim 1, characterized in that: The molding assembly includes a rubber embossing wheel (11), the outer side of which is provided with protrusions for transferring the target texture, the outer side of which abuts against the coating (6), a cooling roller (12) is provided above the front end of the rubber embossing wheel (11), a cooling channel is provided inside the cooling roller (12), the cooling channel is connected to a water supply device on the left and right, and a guide roller (13) is provided below the front of the cooling roller (12). The guide roller (13), the cooling roller (12) and the rubber embossing wheel (11) are all rotatably connected inside the scraper box (2).

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