Protective film bubble removing device

Abstract

The utility model relates to the technical field of product film covering, and discloses a protective film bubble removing device which comprises a pressing roller assembly and a water tank located on one side of the pressing roller assembly, the front end and the rear end of the pressing roller assembly are connected with a water return pipe and a water inlet pipe respectively, and a set of electric cylinders are installed on the outer side of the pressing roller assembly. The lower end of the water tank is connected with a water pump through a water outlet pipe, and the upper ends of the electric cylinders are jointly and fixedly connected with a supporting frame assembly. Hot water is fed into the compression roller assembly through the water pump, the compression roller assembly is preheated, and a protective film is pressed on a product in the process of softening the protective film through the heated compression roller assembly; hot air is blown into the to-be-pressed protective film through an exhaust fan and a heater, so that the protective film is heated and softened; air between the protective film and a product is pumped away through the exhaust fan and the exhaust roller, so that the protective film can be more tightly attached to the product, bubbles are reduced, and the film covering quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of product coating technology, specifically a device for removing air bubbles from protective films. Background Technology

[0002] A protective film is applied to the surface of electronic components to prevent them from being affected by environmental factors such as dust, moisture, and corrosion. Coating can effectively extend the service life of electronic components and improve their stability and reliability. In electronic products, many critical electronic components need to be coated to ensure the normal operation of the product. However, during the coating process, air bubbles can easily form between the protective film and the product, affecting product quality.

[0003] Chinese patent discloses a protective film bubble removal device (authorization announcement number CN222135557U). This patented technology uses a bubble extrusion assembly to press the protective film on the bubble extrusion table along a horizontal transverse conveying path, and uses a rotating roller to perform horizontal longitudinal rolling extrusion on the protective film. This can push the bubbles on the protective film and discharge them from one side of the protective film, reducing the amount of bubbles accumulating. This avoids the problem of the protective film expanding and deforming and being damaged after large bubbles are generated. However, the disclosed technical means is simple, relying only on the mechanical method of rolling extrusion to remove air, and it does not fully improve the quality of product coating. Utility Model Content

[0004] The purpose of this invention is to provide a protective film bubble removal device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A protective film bubble removal device includes a pressure roller assembly and a water tank located on one side of the pressure roller assembly. The front and rear ends of the pressure roller assembly are respectively connected to a return water pipe and a water inlet pipe. A set of electric cylinders is installed on the outside of the pressure roller assembly. The lower end of the water tank is connected to a water pump through a water outlet pipe. The output end of the water pump is connected to the water inlet pipe. The upper ends of the set of electric cylinders are fixedly connected to a support frame assembly. An air blowing roller and an air extraction roller are respectively installed on the rear side of the lower end of the support frame assembly. An exhaust fan is installed at the front end of the air extraction roller through an exhaust pipe. An exhaust fan is installed at the front end of the air blowing roller through an air inlet pipe. A heater is installed between the exhaust fan and the air inlet pipe. A plurality of air holes are evenly opened on the air blowing roller and the air extraction roller.

[0007] As a further improvement of this utility model: a tank cover is installed in the middle of the upper end of the water tank, and an electric heating wire is embedded in one side of the upper end of the water tank.

[0008] As a further embodiment of this utility model: the support frame assembly includes a support rod, one end of which is fixedly connected to a set of mounting ears, and a bent connecting rod is fixedly connected to the front side of the other end of the support rod. The upper ends of a set of electric cylinders are respectively installed at the lower ends of the front and rear sides of the support rod.

[0009] As a further embodiment of this utility model: a cylinder is rotatably connected to the upper end of one side of the bending connecting rod, and a swing rod is rotatably connected to the lower end of the bending connecting rod. The lower end of the cylinder is rotatably connected to the swing rod. A bearing is embedded in the inner side of the swing rod, and the front end of the air blowing roller is installed inside the bearing.

[0010] As a further embodiment of this utility model: the lower end of the swing rod one is rotatably connected to the swing rod two, the inner side of the swing rod two is embedded with the bearing two, and the swing rod two and the swing rod one are rotatably connected to the cylinder two, and the front end of the suction roller is installed on the inner side of the bearing two.

[0011] As a further embodiment of this utility model: the pressure roller assembly includes a pressure roller cylinder and a fixed column located inside the pressure roller cylinder. The front and rear ends of the pressure roller cylinder are equipped with cylinder covers. A rotating tube is connected to the outer side of the cylinder cover. A rotary joint is installed on the rotating tube. The front and rear ends of the fixed column are fixedly connected with end caps. Several arc-shaped holes are opened on the outer side of the end caps.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention uses a water pump to send hot water into the pressure roller assembly to preheat the assembly. The heated pressure roller assembly softens the protective film, which is then pressed onto the product. A blower and heater blow hot air into the protective film to soften it further. An exhaust fan and an air extraction roller remove air from between the protective film and the product, ensuring a tighter fit, reducing air bubbles, and guaranteeing the quality of the coating. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a protective film bubble removal device;

[0015] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0016] Figure 3 This is an exploded structural diagram of the pressure roller assembly in a protective film bubble removal device;

[0017] Figure 4 This is a schematic diagram of the support frame assembly in a protective film bubble removal device.

[0018] In the diagram: 1. Box cover; 2. Heating wire; 3. Water inlet pipe; 4. Water pump; 5. Water outlet pipe; 6. Water tank; 7. Electric cylinder; 8. Pressure roller assembly; 81. Pressure roller cylinder; 82. Cylinder cover; 83. Rotating pipe; 84. Rotary joint; 85. End cap; 86. Arc-shaped hole; 87. Fixed column; 9. Support frame assembly; 91. Support rod; 92. Mounting ear; 93. Bending connecting rod; 94. Swing rod one; 95. Bearing one; 96. Cylinder one; 97. Bearing two; 98. Swing rod two; 99. Cylinder two; 10. Air blowing roller; 11. Air extraction roller; 12. Air extraction pipe; 13. Exhaust fan; 14. Ventilation fan; 15. Air inlet pipe; 16. Heater; 17. Water return pipe. Detailed Implementation

[0019] Please see Figures 1-4In this embodiment of the invention, a protective film bubble removal device includes a pressure roller assembly 8 and a water tank 6 located on one side of the pressure roller assembly 8. The front and rear ends of the pressure roller assembly 8 are respectively connected to a return water pipe 17 and a water inlet pipe 3. An electric cylinder 7 is installed on the outside of the pressure roller assembly 8. The protective film is placed on the product to be coated, and then the electric cylinder 7 drives the pressure roller assembly 8 to descend, pressing the pressure roller assembly 8 onto the protective film. As the pressure roller assembly 8 moves along the product, the protective film is pressed onto the product. A water pump 4 is connected to the lower end of the water tank 6 via a water outlet pipe 5. The output end of the water pump 4 is connected to the water inlet pipe 3. The upper middle part of the water tank 6... A tank cover 1 is installed, and an electric heating wire 2 is embedded on one side of the upper end of the water tank 6. After opening the tank cover 1, water can be added to the water tank 6. The electric heating wire 2 can heat the water in the water tank 6 to a certain temperature. The water pump 4 sends the hot water in the water tank 6 into the water inlet pipe 3 and the pressure roller assembly 8 through the water outlet pipe 5. The hot water preheats the pressure roller assembly 8, and the heated pressure roller assembly 8 softens the protective film, so that the protective film can adhere more tightly to the product and reduce the generation of air bubbles. The upper end of a set of electric cylinders 7 is fixedly connected to a support frame assembly 9. The lower rear side of the support frame assembly 9 is respectively equipped with an air blowing roller 10 and a suction roller 10. The air roller 11 has an exhaust fan 13 installed at its front end via an exhaust pipe 12, and an exhaust fan 14 installed at its front end via an air inlet pipe 15. A heater 16 is installed between the exhaust fan 14 and the air inlet pipe 15. Several air holes are evenly distributed on both the air roller 10 and the exhaust roller 11. Rotary joints are installed between the exhaust pipe 12 and the exhaust roller 11, and between the air roller 10 and the air inlet pipe 15, ensuring that the exhaust pipe 12 and the air inlet pipe 15 are unaffected during the rotation of the exhaust roller 11 and the air roller 10. When laminating the product, the exhaust roller 11 is placed between the product and the protective film to be laminated, and the air roller 10 is... During the process of pressing the protective film onto the product by the pressure roller assembly 8, air is compressed by the exhaust fan 14 and heated by the heater 16. The air is then sent into the air blowing roller 10 through the air inlet pipe 15. The hot air is then blown into the protective film to be pressed through the air holes on the air blowing roller 10, causing the protective film to soften due to the heat. This allows the protective film to adhere tightly to the product, thereby reducing the formation of air bubbles. At the same time, the exhaust fan 13 generates negative pressure, causing the air between the product and the protective film to enter the exhaust roller 11 through the air holes. The air is then discharged sequentially through the exhaust pipe 12 and the exhaust fan 13, thereby reducing the formation of air bubbles.

[0020] exist Figure 1 and Figure 3In the middle, the pressure roller assembly 8 includes a pressure roller cylinder 81 and a fixed column 87 located inside the pressure roller cylinder 81. A cylinder cover 82 is installed at both the front and rear ends of the pressure roller cylinder 81. A rotating pipe 83 is connected to the outside of the cylinder cover 82, and a rotary joint 84 is installed on the rotating pipe 83. End caps 85 are fixedly connected to both the front and rear ends of the fixed column 87. Several arc-shaped holes 86 are opened on the outside of the end caps 85. Hot water in the inlet pipe 3 flows sequentially from the rotary joint 84, the rotating pipe 83, and the cylinder cover 82 into the end cap 85, and then enters the water supply through the arc-shaped holes 86. Between the pressure roller 81 and the fixed column 87, the pressure roller 81 is heated, and the heated water flows sequentially from the arc-shaped hole 86 at the front end, the end cover 85, the cylinder cover 82, the rotating pipe 83, and the rotary joint 84 into the return water pipe 17, and then flows back into the water tank 6. The lower end of the electric cylinder 7 is sleeved on the rotating pipe 83, and a bearing is installed between the electric cylinder 7 and the rotating pipe 83, so that the pressure roller 81 can rotate smoothly. The rotary joint 84 ensures that the inlet pipe 3 and the return water pipe 17 are not affected during the rotation of the pressure roller 81.

[0021] exist Figure 1 and Figure 4 In the support frame assembly 9, there is a support rod 91. One end of the support rod 91 is fixedly connected to a set of mounting ears 92, and a bent connecting rod 93 is fixedly connected to the front side of the other end of the support rod 91. The upper ends of a set of electric cylinders 7 are respectively installed at the lower ends of the front and rear sides of the support rod 91. The mounting ears 92 are installed together with the external traveling equipment. The traveling equipment can drive the entire protective film bubble removal device to move, so that the protective film can be rolled onto the product by the pressure roller assembly 8. A cylinder 96 is rotatably connected to the upper end of one side of the bent connecting rod 93, and a swing rod 94 is rotatably connected to the lower end of the bent connecting rod 93. The lower end of the cylinder 96 is rotatably connected to the swing rod 94. A bearing 95 is embedded in the inner side of the swing rod 94. The front end of the air blowing roller 10 is installed on the bearing 95. The air blowing roller 10 can rotate around the bearing 95 as the center by extending or retracting the cylinder 96; the swing rod 94 can be pushed or pulled by extending or retracting the cylinder 96, thereby changing the height of the air blowing roller 10 and adjusting its position on the protective film; the lower end of the swing rod 94 is rotatably connected to the swing rod 98, the inner side of the swing rod 98 is embedded with the bearing 97, and the cylinder 99 is rotatably connected between the swing rod 98 and the swing rod 94; the front end of the suction roller 11 is installed inside the bearing 97, thereby allowing the suction roller 11 to rotate around the bearing 97 as the center; the swing rod 98 can be pushed or pulled by extending or retracting the cylinder 99, thereby changing the height of the suction roller 11 and adjusting its position between the protective film and the product;

[0022] The working principle of this utility model is as follows: When it is necessary to coat the product, firstly, the mounting ear 92 in the support frame assembly 9 is installed together with the external walking equipment, then the product is placed on the workbench and its surface is wiped clean; then, one end of the protective film is torn off and pasted on one end of the product; then, the suction roller 11 is placed between the product and the protective film to be coated, and the blowing roller 10 is placed on top of the protective film to be coated.

[0023] Next, the electric cylinder 7 is activated, which drives the pressure roller assembly 8 to descend and press one end of the pressure roller assembly 8 onto the protective film. Then, the second cylinder 99 in the support frame assembly 9 is activated, and the extension and retraction of the second cylinder 99 pushes or pulls the second swing rod 98 to change the height of the suction roller 11, so that the suction roller 11 is positioned at a suitable position between the protective film and the product. Then, the first cylinder 96 is activated, and the extension and retraction of the first cylinder 96 pushes or pulls the first swing rod 94, so that the blowing roller 10 is positioned at a suitable position on the protective film.

[0024] Next, the water pump 4 is started. The water pump 4 sends the hot water in the water tank 6 into the water inlet pipe 3 and the pressure roller assembly 8 through the water outlet pipe 5. The hot water preheats the pressure roller 81. Then, the walking equipment drives the entire protective film bubble removal device to move. The heated pressure roller 81 softens the protective film and presses it onto the product.

[0025] Simultaneously, during the process of the pressure roller assembly 8 pressing the protective film onto the product, the exhaust fan 14 is activated. The exhaust fan 14 compresses and heats the air, then sends it into the air blowing roller 10 through the air inlet pipe 15. The hot air is then blown into the protective film to be pressed through the air holes on the air blowing roller 10, causing the protective film to soften due to heat. This allows the protective film to adhere tightly to the product, thereby reducing the formation of air bubbles. At the same time, the exhaust fan 13 is activated, generating negative pressure. This causes the air between the product and the protective film to be pressed to enter the exhaust roller 11 through the air holes, and then be discharged sequentially through the exhaust pipe 12 and the exhaust fan 13, thereby reducing the formation of air bubbles.

[0026] 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 protective film bubble removing apparatus comprising a press roller assembly (8) and a water tank (6) located on one side of the press roller assembly (8), characterized in that, The front and rear ends of the compression roller assembly (8) are connected with a backwater pipe (17) and a water inlet pipe (3) respectively, and a group of electric cylinders (7) are installed outside the compression roller assembly (8), the lower end of the water tank (6) is connected with a water pump (4) through a water outlet pipe (5), the output end of the water pump (4) is connected with the water inlet pipe (3), the upper ends of the group of electric cylinders (7) are fixedly connected with a support frame assembly (9), the rear side of the lower end of the support frame assembly (9) is respectively installed with a blowing roller (10) and a suction roller (11), the front end of the suction roller (11) is installed with a suction fan (13) through a suction pipe (12), the front end of the blowing roller (10) is installed with an exhaust fan (14) through an air inlet pipe (15), a heater (16) is installed between the exhaust fan (14) and the air inlet pipe (15), and a plurality of air holes are uniformly formed in the blowing roller (10) and the suction roller (11).

2. The protective film bubble removing apparatus according to claim 1, wherein The middle part of the upper end of the water tank (6) is installed with a tank cover (1), and the electric heating wire (2) is embeddedly installed on one side of the upper end of the water tank (6).

3. The protective film bubble removing apparatus according to claim 1, wherein The support frame assembly (9) comprises a support rod (91), one end of the support rod (91) is fixedly connected with a group of mounting ears (92), the front side of the other end of the support rod (91) is fixedly connected with a bent connecting rod (93), and the upper ends of the group of electric cylinders (7) are installed on the lower ends of the front and rear sides of the support rod (91) respectively.

4. The protective film bubble removing apparatus according to claim 3, wherein The upper end of one side of the bent connecting rod (93) is rotatably connected with a cylinder one (96), and the lower end of the bent connecting rod (93) is rotatably connected with a swing rod one (94), the lower end of the cylinder one (96) is rotatably connected with the swing rod one (94), the inner side of the swing rod one (94) is embeddedly installed with a bearing one (95), and the front end of the blowing roller (10) is installed on the inner side of the bearing one (95).

5. The protective film bubble removing apparatus according to claim 4, wherein The lower end of the swing rod one (94) is rotatably connected with a swing rod two (98), the inner side of the swing rod two (98) is embeddedly installed with a bearing two (97), and the cylinder two (99) is rotatably connected between the swing rod two (98) and the swing rod one (94), and the front end of the suction roller (11) is installed on the inner side of the bearing two (97).

6. The protective film bubble removing apparatus according to claim 1, wherein The compression roller assembly (8) comprises a compression roller cylinder (81) and a fixed column (87) located on the inner side of the compression roller cylinder (81), the front and rear ends of the compression roller cylinder (81) are installed with cylinder covers (82), the outer sides of the cylinder covers (82) are connected with rotating pipes (83), the rotating pipes (83) are installed with rotary joints (84), the front and rear ends of the fixed column (87) are fixedly connected with end head covers (85), and a plurality of arc-shaped holes (86) are formed in the outer sides of the end head covers (85).

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