A mylar film defoaming device

Abstract

The utility model provides a kind of mylar film laminating defoaming device, including the conveying assembly for conveying mylar sheet, which is arranged along the length direction of frame and is used for conveying;It is arranged above conveying assembly, and it is used for laminating film on mylar sheet, and it includes positioning roller that gradually reduces from middle part to both sides to push bubble to the two sides of the laminating surface of mylar sheet and film with the diameter, and oblique press roll is arranged downstream of positioning roller in pairs along the conveying direction of mylar sheet, and oblique press roll guides bubble to discharge from the middle part to both sides of laminating surface. By the positioning roller of protrusion arranged in upstream and middle, pressure can be applied to the center of laminating surface first, and bubble is changed from "dispersion from multiple points" to "concentration on both sides";Pressing position is easy to deviate during film laminating, positioning roller can make the center area of laminating surface between mylar sheet and film complete stable lamination first, and when subsequent oblique press roll is pressed, film will not slide, so that oblique press roll can more accurately push bubble to move and discharge to the edge of laminating surface.

Description

Technical Field

[0001] This utility model relates to the technical field of Mylar coating, and in particular to a Mylar coating defoaming device. Background Technology

[0002] In the industrial production of Mylar film, the lamination process is an effective way to improve its insulation and abrasion resistance. In existing technologies, Mylar film and film are often bonded together by direct pressing with rollers. However, since both are elastic materials without rigid support, and their elastic modulus and thickness differ, asynchronous deformation can easily occur when the rollers press vertically. This results in wrinkles at the edges of the Mylar film and film, which can trap air bubbles, leading to a decrease in lamination quality.

[0003] To address the aforementioned issues, this application provides a Mylar film bubble elimination device that guides bubbles to be discharged in a directional manner through a reasonably structured bonding component, thereby solving the problem of defoaming during film coating. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a Mylar film defoaming device, which, through the synergistic effect between the positioning roller and the inclined pressure roller in the bonding component, rationally guides the removal of air bubbles from the bonding surface of the double elastic material film, thereby improving the film quality.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution: A Mylar film defoaming device includes a conveying assembly extending along the length of a frame for conveying Mylar sheets; A bonding assembly located above the conveying assembly for bonding a film onto a Mylar sheet includes a positioning roller whose diameter gradually decreases from the center to both sides to push air bubbles toward both sides of the bonding surface between the Mylar sheet and the film, and inclined pressure rollers arranged in pairs downstream of the positioning rollers along the conveying direction of the Mylar sheet. The inclined pressure rollers guide air bubbles to be discharged from the center of the bonding surface to both sides. And a feeding roller that is mounted on the frame and rotates to feed the film in the direction of the positioning roller.

[0006] To achieve the above technical solution, a positioning roller located upstream and in the middle can first apply pressure to the center of the bonding surface, changing the air bubbles from "dispersed at multiple points" to "concentrated on both sides." Simultaneously, during the bonding of the two elastic elements, the pressing position is prone to shifting. The centrally protruding positioning roller allows the central area of ​​the bonding surface between the Mylar sheet and the film to achieve stable bonding first, essentially setting a "center point" for both. This prevents the film from slipping when the tilting pressure roller applies pressure subsequently, allowing the tilting pressure roller to more precisely push the air bubbles towards the edge of the bonding surface for discharge.

[0007] Furthermore, the inclined pressure rollers are symmetrically arranged on both sides of the center line of the Mylar film conveying direction and inclined towards the positioning roller.

[0008] To achieve the above technical solution, symmetrically and inclined pressure rollers provide a vertically downward bonding force and a lateral force perpendicular to the conveying direction of the Mylar film for film coating. The vertically downward bonding force ensures that the film and the Mylar film are tightly bonded, while the lateral force pushes the air bubbles that are pushed and concentrated on both sides by the positioning rollers and squeezes the air bubbles out toward both sides of the Mylar film, thus completely eliminating air bubbles during Mylar film coating.

[0009] Furthermore, the angle between the inclined pressure roller and the positioning roller ranges from 5° to 30°.

[0010] To achieve the above technical solution, the angle of the tilting roller is adjusted to adapt to the pressing process requirements of Mylar film with different thicknesses, thereby improving the applicability of the device.

[0011] Furthermore, the positioning roller includes a pressure roller body and an elastic layer sleeved on and detachably connected to the pressure roller body, and the diameter of the positioning roller can be changed by replacing the elastic layer.

[0012] To achieve the above technical solution, an elastic layer that is detachably sleeved on the pressure roller body can be used to change the diameter of the positioning roller by replacing the elastic layer, so that the positioning roller can better adapt to Mylar sheets of different thicknesses.

[0013] Furthermore, it also includes a cutting assembly located downstream of the bonding assembly along the Mylar sheet conveying direction, which includes a mounting plate mounted on the frame along the width direction of the conveying assembly and a cutting blade disposed toward the conveying assembly and slidably connected to the mounting plate.

[0014] To achieve the above technical solution, the laminated Mylar film is cut into pieces by a cutting blade that moves in the width direction.

[0015] Furthermore, the conveying assembly includes several material plates evenly arranged along the conveying direction of the Mylar film and "T"-shaped connecting blocks disposed between adjacent material plates to connect the material plates.

[0016] To achieve the above technical solution, adjacent plates used to support Mylar sheets are connected by "T"-shaped connecting blocks.

[0017] Furthermore, the "T"-shaped connecting block has a clearance groove on the side near the Mylar sheet for the cutting blade to pass through.

[0018] To achieve the above technical solution, the "T"-shaped connecting block is provided with a clearance groove for the cutting blade to pass through, so that the cutting blade will not interfere with or collide with the "T"-shaped connecting block when cutting the laminated Mylar film.

[0019] As described above, the Mylar film defoaming device of this utility model has the following beneficial effects: 1. In this application, the positioning roller, located upstream and in the middle, can first apply pressure to the center of the bonding surface, changing the air bubbles from "dispersed at multiple points" to "concentrated on both sides". At the same time, when the double elastic elements are bonded, the pressing position is prone to displacement. The positioning roller with the middle protrusion can first ensure that the central area of ​​the bonding surface between the Mylar sheet and the film is stably bonded. It is equivalent to setting a "center point" for the two. When the tilting pressure roller applies pressure later, the film will not slip, allowing the tilting pressure roller to more accurately push the air bubbles to move towards the edge of the bonding surface for discharge.

[0020] 2. In this application, the inclined pressure rollers, which are symmetrically and inclinedly arranged, provide a vertically downward bonding force and a lateral force perpendicular to the conveying direction of the Mylar film for film coating. The vertically downward bonding force ensures that the film is tightly bonded to the Mylar film, and the lateral force pushes the bubbles that are pushed and concentrated on both sides by the positioning rollers, and squeezes the bubbles out toward both sides of the Mylar film, thus completely eliminating the bubbles during the film coating process. Attached Figure Description

[0021] Figure 1 The diagram shown is a structural schematic of a Mylar film defoaming device according to this utility model.

[0022] Figure 2 The diagram shown is a structural schematic of the positioning roller in this utility model.

[0023] Figure 3 The diagram shown is a structural schematic of the inclined roller in this utility model.

[0024] Figure 4 The diagram shown is a structural schematic of the cutting component in this utility model.

[0025] Figure 5 Displayed as Figure 4 A schematic diagram of part A.

[0026] The components include: 1. Conveying assembly; 11. Material plate; 12. "T" shaped connecting block; 121. Clearance groove; 13. Conveyor belt; 14. Drive unit; 2. Bonding assembly; 21. Positioning roller; 211. Pressure roller body; 212. Elastic layer; 22. Inclined pressure roller; 23. First connecting piece; 231. Support plate; 2311. Arc-shaped adjustment hole; 232. Adjusting screw; 3. Feeding roller; 4. Cutting assembly; 41. Mounting plate; 42. Cutting knife; 43. Drive motor; 44. Drive pulley; 45. Driven pulley; 46. Anti-warping roller. Detailed Implementation

[0027] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0028] Please see Figure 1-5 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0029] Please see Figures 1 to 5 This utility model provides a Mylar film defoaming device, including a conveying component 1 extending along the length of a frame and used to convey Mylar sheets, a bonding component 2 disposed above the conveying component 1, and a feeding roller 3 disposed on the frame to rotate and feed the film.

[0030] The bonding assembly 2 is used to bond the film onto the Mylar sheet, and includes a positioning roller 21 whose diameter gradually decreases from the middle to both sides, and an inclined pressure roller 22 arranged in pairs downstream of the positioning roller 21 along the Mylar sheet conveying direction.

[0031] Specifically, the positioning roller 21 presses the middle of the film onto the Mylar sheet and pushes the air between the Mylar sheet and the film in the direction where the diameter of the positioning roller 21 gradually decreases, that is, pushes it to both sides in the direction of Mylar sheet conveying; the inclined pressure roller 22 located downstream of the positioning roller 21 continues to push the air bubbles squeezed to both sides to the side until they are squeezed out from the bonding surface between the Mylar sheet and the film.

[0032] When laminating Mylar film, a double-elastic structure is used, air bubbles are usually dispersed across the entire bonding surface. The positioning roller 21, located upstream and in the middle, can first apply pressure to the center of the bonding surface, changing the air bubbles from being "dispersed at multiple points" to "concentrated on both sides." Simultaneously, during double-elastic bonding, the pressing position is prone to shifting. The positioning roller 21, with its central protrusion, can first ensure stable bonding in the central area of ​​the bonding surface between the Mylar film and the film, essentially setting a "center point." This prevents the film from slipping when the tilting roller 22 applies pressure subsequently, allowing the tilting roller 22 to more precisely push the air bubbles towards the edge of the bonding surface for expulsion.

[0033] Please continue reading. Figure 1 and 3 Inclined pressure rollers 22 are symmetrically arranged on both sides of the center line of the Mylar film conveying direction and inclined toward the positioning rollers 21.

[0034] Specifically, the inclined pressure rollers 22 are arranged in pairs and connected to the frame through the first connecting member 23. The first connecting member 23 includes a support plate 231 mounted on the frame, an adjusting screw 232 with one end connected to the end of the inclined pressure roller 22 through a bearing and the other end slidably connected to the support plate 231. The support plate 231 has an arc-shaped adjusting hole 2311. The adjusting screw 232 is vertically adjustable to the support plate 231 through the threaded engagement between nuts.

[0035] The rolling force of the inclined pressure roller 22 can be decomposed into two parts: one is the vertically downward bonding force, and the other is the lateral force perpendicular to the conveying direction of the Mylar film. The vertically downward bonding force ensures that the film and the Mylar film are tightly bonded, while the lateral force pushes the bubbles on both sides of the positioning roller 21 to squeeze them out towards the sides of the Mylar film, thus completely eliminating the bubbles during the Mylar film lamination process.

[0036] Preferably, the angle between the inclined pressure roller 22 and the positioning roller 21 is adjustable within the range of 5°-30°. If the angle is too large, exceeding 30°, it may cause excessive pressure on the contact line between the inclined pressure roller 22 and the film, damaging the film or causing local overstretching; if the angle is too small, the difference from the vertical pressure roller will be small, and wrinkles will still appear on the side, failing to demonstrate the advantages of step-by-step, gradual pressure application.

[0037] Please continue reading. Figure 2 The positioning roller 21 includes a pressure roller body 211 and an elastic layer 212 sleeved on the pressure roller body 211.

[0038] The pressure roller body 211 is made of metal, while the elastic layer 212 is made of rubber. By replacing different elastic layers 212, the diameter of the positioning roller 21 can be changed. The inner diameter of the elastic layer 212 is smaller than the diameter of the pressure roller body 211. The slight deformation of the elastic layer 212 achieves an interference fit and fixation between the two, preventing the elastic layer 212 from rotating and falling off.

[0039] Specifically, the outer diameter of the elastic layer 212 has a gradually changing structure of "thick in the middle and thin at both ends" and forms a gentle taper. When the positioning roller 21 rolls, the pressure is gradually transmitted and reduced from the middle of the bonding surface between the Mylar sheet and the film to the sides, so as to push the air bubbles generated when the two are first bonded to both sides, so as to facilitate the subsequent tilting roller 22 to completely vent air to both sides.

[0040] Please continue reading. Figure 4 and Figure 5It also includes a cutting component 4 located downstream of the bonding component 2 along the Mylar sheet conveying direction.

[0041] Specifically, the cutting assembly 4 includes a mounting plate 41 mounted on the frame along the width direction of the conveying assembly 1, a cutting blade 42 facing the conveying assembly 1 and slidably connected to the mounting plate 41, and a drive motor 43 connected to the cutting blade 42 by belt drive.

[0042] The mounting plate 41 is set perpendicular to the conveying direction of the Mylar film. The drive motor 43 is mounted on the mounting plate 41, and its output end is provided with a drive pulley 44. The rotation of the drive pulley 44 drives a pair of driven pulleys 45 to rotate. The cutting blade 42 moves back and forth between the two driven pulleys 44 to cut the coated Mylar film.

[0043] It should be noted that the cutting assembly 4 also includes a pair of anti-warping rollers 46 arranged across the width direction of the Mylar film. The anti-warping rollers 46 are used to abut against the side of the film to prevent the side from being lifted up by the cutting blade 42 during cutting, so that gas can re-enter the bonding surface and form bubbles again.

[0044] Please continue reading. Figure 1 and Figure 5 The conveying assembly 1 includes several material plates 11 evenly arranged along the conveying direction of the Mylar film and a "T"-shaped connecting block 12 disposed between two adjacent material plates 11.

[0045] The material plate 11 is made of stainless steel, which combines rigidity and wear resistance; the "T"-shaped connecting block 12 is made of high-strength engineering plastic and is used to connect adjacent material plates 11 through a snap-fit.

[0046] Furthermore, the "T"-shaped connecting block 12 is provided with a clearance groove 121 for the cutting blade 42 to pass through, so that the cutting blade 42 will not interfere with or collide with the "T"-shaped connecting block 12 when cutting the coated Mylar film.

[0047] It should be noted that the conveying assembly 1 also includes a conveyor belt 13 driven by a stepper motor and a drive unit 14 for driving the conveyor belt 13. The material plate 11 is laid on the conveyor belt 13 to carry Mylar film.

[0048] The implementation principle of the Mylar film defoaming device of this utility model is as follows: A technician places a sheet of Mylar film on the material plate 11 of the conveying assembly 1, and simultaneously laminates the film on the feeding roller 3 around the positioning roller 21; then, the angle and downward pressure of the inclined pressure roller 22 are adjusted, and the drive unit 14 is started and the conveying speed is adjusted; subsequently, the conveying assembly 1 moves the Mylar film toward the laminating assembly 2, and the film on the feeding roller 3 is pulled by the positioning roller 21, moving synchronously with the Mylar film; the positioning roller 21, through the elastic layer 212 with a gradually changing diameter, initially defoams the air bubbles in the center of the laminating surface. The film is pushed to both sides; as the Mylar film moves to below the inclined pressure roller 22, the inclined pressure roller 22 then uses lateral force to completely expel the remaining air bubbles on both sides to the sides; subsequently, the laminated Mylar film moves to below the cutting assembly 4, the anti-warping roller 46 presses the two sides of the film, and at the same time, the cutting blade 42, driven by the drive motor 43, cuts the Mylar film along the width direction to the other side. Driven by the drive unit 14, the laminated Mylar film moves again, and after moving to the preset position, the cutting blade 42 cuts the laminated Mylar film again from the other side.

[0049] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A Mylar film-coated defoaming device, characterized in that, include: A conveying assembly (1) is provided to convey Mylar sheets, extending along the length of the frame. A bonding assembly (2) is located above the conveying assembly (1) for bonding a film onto a Mylar sheet. It includes a positioning roller (21) whose diameter gradually decreases from the middle to both sides to push air bubbles toward both sides of the bonding surface between the Mylar sheet and the film, and an inclined pressure roller (22) arranged in pairs downstream of the positioning roller (21) along the conveying direction of the Mylar sheet. The inclined pressure roller guides air bubbles to be discharged from the middle of the bonding surface to both sides. And, a rotatable feeding roller (3) mounted on the frame to feed the film in the direction of the positioning roller (21).

2. The Mylar film defoaming device according to claim 1, characterized in that, The inclined pressure roller (22) is symmetrically arranged on both sides of the center line of the Mylar film conveying direction and inclined toward the positioning roller (21).

3. The Mylar film defoaming device according to claim 2, characterized in that, The angle between the inclined pressure roller (22) and the positioning roller (21) is in the range of 5°-30°.

4. The Mylar film defoaming device according to claim 1, characterized in that, The positioning roller (21) includes a pressure roller body (211) and an elastic layer (212) sleeved on the pressure roller body (211) and detachably connected thereto. The diameter of the positioning roller (21) can be changed by replacing the elastic layer (212).

5. The Mylar film defoaming device according to claim 1, characterized in that, It also includes a cutting assembly (4) located downstream of the bonding assembly (2) along the Mylar sheet conveying direction, which includes a mounting plate (41) mounted on the frame along the width direction of the conveying assembly (1) and a cutting blade (42) disposed toward the conveying assembly (1) and slidably connected to the mounting plate (41).

6. The Mylar film defoaming device according to claim 5, characterized in that, The conveying assembly (1) includes several material plates (11) evenly arranged along the conveying direction of the Mylar film, and a "T"-shaped connecting block (12) disposed between adjacent material plates (11) to connect the material plates (11).

7. The Mylar film defoaming device according to claim 6, characterized in that, The "T"-shaped connecting block (12) has a clearance groove (121) on the side near the Mylar sheet for the cutting blade (42) to pass through.

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