EVA (Ethylene Vinyl Acetate) adhesive film processing and drawing device

Abstract

The utility model discloses an EVA (Ethylene Vinyl Acetate) adhesive film processing and drawing device which comprises two side plates which are symmetrically arranged left and right, a heat preservation box is fixedly connected between the two side plates, a main motor and a refrigeration box are fixedly connected on the right side wall of the side plate on the right side, a winding roller is rotatably connected between the two side plates, and the main motor and the refrigeration box are fixedly connected on the right side wall of the side plate on the right side. A cooling assembly is arranged between the two side plates and comprises an air pipe and a spray head, the air pipe is fixedly connected with the side plates on the two sides, and the spray head is fixedly connected to the circumferential face of the air pipe. By arranging the heat preservation box, the heating plate, the temperature sensor, the lower guide roller, the drawing rod, the sliding block, the pressure sensor, the electric rod, the upper guide roller and the sliding groove, heat preservation can be conducted on a machined EVA adhesive film, good ductility is kept, the EVA adhesive film can be stretched more evenly and more accurately through a follow-up drawing device, and the stretching precision and the stretching effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of EVA film processing, in particular to an EVA film processing drawing device. Background Art

[0002] EVA is a thermosetting adhesive film that is placed between laminated glass (EVA is the abbreviation of Polyethylenevinylacetate). Due to its superiority in adhesion, durability, and optical properties, EVA film is increasingly used in power components and various optical products. In order to obtain different thicknesses of EVA film, the produced EVA film needs to be properly stretched.

[0003] In the existing EVA film drawing device, the EVA film is drawn immediately when the EVA film is just out of the oven. During the drawing process, due to the uneven heat dissipation of the EVA film, it is easy to cause uneven drawing thickness, poor product quality, and failure to quickly shape. The drawn EVA film is prone to shrinkage under the action of stress, causing the EVA film to shrink into a ball. Utility Model Content

[0004] The utility model provides an EVA film processing and drawing device, which can keep the processed EVA film warm and maintain good ductility, so that a subsequent drawing device can stretch the EVA film more evenly and accurately, improve the stretching accuracy and stretching effect, and quickly cool and shape the EVA film after stretching, so as to avoid shrinkage of the EVA film and cause the EVA film to shrink into a ball, thereby improving the processing quality.

[0005] To achieve the above-mentioned purpose, an EVA film processing and drawing device is provided, comprising: a side plate, wherein the number of the side plates is set to two and they are symmetrically arranged on the left and right, an insulation box is fixedly connected between the two side plates, a main motor and a refrigeration box are fixedly connected to the right wall of the right side plate, a winding roller is rotatably connected between the two side plates, a cooling component is arranged between the two side plates, the cooling component comprises an air pipe and a nozzle, the air pipe is fixedly connected to the side plates on both sides, a nozzle is fixedly connected to the circumferential surface of the air pipe, a plurality of nozzles are set and they are evenly distributed on the circumferential surface of the air pipe, the nozzle forms an angle of 30 degrees with the horizontal line, a heating plate is fixedly connected to the inside of the insulation box, A temperature sensor is fixedly connected to the inner rear side wall of the incubator, a lower guide roller and an upper guide roller are rotatably connected to the inner part of the incubator, slide grooves are provided on the inner left and right side walls of the incubator, a drawing assembly is provided inside the incubator, the drawing assembly includes a drawing rod, a slider, a pressure sensor and an electric rod, the left and right side walls of the drawing rod are rotatably connected to the sliders, a pressure sensor is fixedly connected to the circumferential surface of the drawing rod, a plurality of pressure sensors are provided and are evenly distributed on the circumferential surface of the drawing rod, an electric rod is fixedly connected to the slider, the electric rod and the slider are both located inside the slide groove, and the end of the electric rod away from the slider is fixedly connected to the incubator.

[0006] According to the EVA film processing and drawing device, the output end of the main motor is fixedly connected to the winding roller, and the output end of the refrigeration box is fixedly connected to the air pipe.

[0007] According to the EVA film processing and drawing device, the number of the slide grooves is set to four and are symmetrically distributed on the left and right side walls of the insulation box, and the number of the drawing components is set to two and are relatively distributed front, back and up and down inside the insulation box.

[0008] According to the EVA film processing and drawing device, the drawing component is located between the upper guide roller and the lower guide roller.

[0009] According to the EVA film processing and drawing device, an outlet is provided on the front side wall of the thermal insulation box, and an inlet is provided on the rear side wall of the thermal insulation box.

[0010] According to the EVA film processing and drawing device, the number of the cooling components is two and they are symmetrically distributed on the upper and lower sides of the outlet.

[0011] Beneficial effects of the utility model:

[0012] 1. By setting up an insulation box, a heating plate, a temperature sensor, a lower guide roller, a drawing rod, a slider, a pressure sensor, an electric rod, an upper guide roller and a slide, the processed EVA film can be kept warm and have good ductility, so that the subsequent drawing device can stretch the EVA film more evenly and accurately, thereby improving the stretching accuracy and stretching effect;

[0013] 2. By setting up a refrigeration box, air pipe and nozzle, the drawn EVA film can be quickly cooled and shaped to avoid shrinkage of the EVA film, causing the EVA film to shrink into a ball, thereby improving the processing quality.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a front view of an EVA film processing and drawing device of the utility model;

[0017] Figure 2 This is a front view of an EVA film processing and drawing device of the utility model;

[0018] Figure 3 This is a cross-sectional view of an EVA film processing and drawing device of the utility model;

[0019] Figure 4 This is a structural diagram of a drawing rod of an EVA film processing and drawing device of the utility model.

[0020] Legend:

[0021] 1. Side panel; 2. Insulation box; 3. Main motor; 4. Refrigeration box; 5. Winding roller; 6. Air pipe; 7. Nozzle; 8. Heating plate; 9. Temperature sensor; 10. Lower guide roller; 11. Drawing rod; 12. Slider; 13. Pressure sensor; 14. Electric rod; 15. Upper guide roller; 16. Slide; 17. Exit; 18. Entrance. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0023] Reference Figure 1-4The utility model embodiment is an EVA film processing and drawing device, which includes: a side plate 1, the number of side plates 1 is set to two, and they are symmetrically arranged on the left and right. An insulation box 2 is fixedly connected between the two side plates 1 to keep the produced EVA film warm for subsequent drawing operations. A main motor 3 and a refrigeration box 4 are fixedly connected to the right wall of the right side plate 1. A winding roller 5 is rotatably connected between the two side plates 1. The output end of the main motor 3 is fixedly connected to the winding roller 5, and the output end of the refrigeration box 4 is fixedly connected to the air pipe 6. A cooling component is arranged between the two side plates 1. The cooling assembly includes an air pipe 6 and a nozzle 7. The air pipe 6 is fixedly connected to the side panels 1 on both sides. The nozzle 7 is fixedly connected to the circumferential surface of the air pipe 6. There are multiple nozzles 7, which are evenly distributed on the circumferential surface of the air pipe 6. The nozzle 7 is at an angle of 30 degrees to the horizontal line, which can better cool the EVA film up and down, extend the cooling time, and improve the cooling effect. A heating plate 8 is fixedly connected to the inside of the heat preservation box 2 for more uniform heating of the EVA film and convenient uniform drawing. A temperature sensor 9 is fixedly connected to the inner rear wall of the heat preservation box 2 for monitoring To measure the internal temperature and ensure the drawing effect, the lower guide roller 10 and the upper guide roller 15 are rotatably connected inside the heat preservation box 2, and the left and right side walls inside the heat preservation box 2 are provided with slide grooves 16. The heat preservation box 2 is provided with a drawing component inside, and the drawing component includes a drawing rod 11, a slider 12, a pressure sensor 13 and an electric rod 14. The left and right side walls of the drawing rod 11 are rotatably connected with the slider 12, and the circumferential surface of the drawing rod 11 is fixedly connected with the pressure sensor 13. There are multiple pressure sensors 13, which are evenly distributed on the circumferential surface of the drawing rod 11, and are used for Monitor the force of the EVA film during the drawing process to better control the drawing. An electric rod 14 is fixedly connected to the slider 12. The electric rod 14 and the slider 12 are both located inside the slide groove 16. The end of the electric rod 14 away from the slider 12 is fixedly connected to the insulation box 2. There are four slide grooves 16, which are symmetrically distributed on the left and right side walls of the insulation box 2. There are two drawing components, which are relatively distributed inside the insulation box 2 front and back and up and down. Bidirectional drawing makes the drawing effect faster and better. The drawing component is located between the upper guide roller 15 and the lower guide roller 10.

[0024] An outlet 17 is provided on the front side wall of the insulation box 2, and an inlet 18 is provided on the rear side wall of the insulation box 2. There are two cooling components, which are symmetrically distributed on the upper and lower sides of the outlet 17, for quickly cooling and shaping the stretched EVA film to avoid shrinkage of the EVA film under stress.

[0025] Working principle: The newly produced EVA film enters the insulation box 2 from the inlet 18, and passes by the lower guide roller 10, the drawing rod 11 and the upper guide roller 15 in turn, extends from the outlet 17, and is wound around the winding roller 5. The main motor 3 is started, and the winding roller 5 starts the winding operation. At the same time, the electric rod 14 is started to push the two drawing rods 11 in opposite directions. During the pushing process, the EVA film is evenly drawn. When the drawn EVA film passes through the outlet 17, it is quickly cooled by the cold air sprayed from the nozzle 7 of the working refrigeration box 4 to complete the shaping, and then it is wound up.

[0026] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An EVA film processing and drawing device, comprising: Side panels (1), the number of side panels (1) is two and they are symmetrically arranged on the left and right, characterized in that an insulation box (2) is fixedly connected between the two side panels (1), a main motor (3) and a refrigeration box (4) are fixedly connected to the right side wall of the right side panel (1), a winding roller (5) is rotatably connected between the two side panels (1), a cooling component is arranged between the two side panels (1), the cooling component comprises an air pipe (6) and a nozzle (7), the air pipe (6) is fixedly connected to the side panels (1) on both sides, the nozzle (7) is fixedly connected to the circumferential surface of the air pipe (6), the number of the nozzles (7) is multiple and they are evenly distributed on the circumferential surface of the air pipe (6), the nozzle (7) forms an angle of 30 degrees with the horizontal line, a heating plate (8) is fixedly connected to the inside of the insulation box (2), and a temperature sensor (9) is fixedly connected to the inner rear side wall of the insulation box (2) The interior of the heat preservation box (2) is rotatably connected with a lower guide roller (10) and an upper guide roller (15); the left and right side walls of the interior of the heat preservation box (2) are provided with a slide groove (16); the interior of the heat preservation box (2) is provided with a drawing component, and the drawing component comprises a drawing rod (11), a slider (12), a pressure sensor (13) and an electric rod (14); the left and right side walls of the drawing rod (11) are rotatably connected with the slider (12); the circumferential surface of the drawing rod (11) is fixedly connected with a pressure sensor (13); the number of the pressure sensors (13) is multiple and evenly distributed on the circumferential surface of the drawing rod (11); the slider (12) is fixedly connected with an electric rod (14); the electric rod (14) and the slider (12) are both located inside the slide groove (16); and the end of the electric rod (14) away from the slider (12) is fixedly connected to the heat preservation box (2).

2. The EVA film processing and drawing device according to claim 1, characterized in that: The output end of the main motor (3) is fixedly connected to the winding roller (5), and the output end of the refrigeration box (4) is fixedly connected to the air pipe (6).

3. The EVA film processing and drawing device according to claim 1, characterized in that: The number of the slide grooves (16) is four and they are symmetrically distributed on the left and right side walls of the heat preservation box (2); the number of the drawing components is two and they are relatively distributed inside the heat preservation box (2) in the front, back and top directions.

4. The EVA film processing and drawing device according to claim 1, characterized in that: The drawing assembly is located between an upper guide roller (15) and a lower guide roller (10).

5. The EVA film processing and drawing device according to claim 1, characterized in that: An outlet (17) is provided on the front side wall of the heat preservation box (2), and an inlet (18) is provided on the rear side wall of the heat preservation box (2).

6. The EVA film processing and drawing device according to claim 5, characterized in that: The number of the cooling components is two and they are symmetrically distributed on the upper and lower sides of the outlet (17).

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