Heat drying device for color changing film of automobile

Abstract

An automobile color changing film hot drying device comprises a drying box, an air filtering cavity, an air extracting pump, a heating cylinder, an air distributing cavity, an air spraying pipe, a spraying head, a film inlet, a film outlet and a transmission mechanism. The air extracting pump is arranged, the air inlet of the air extracting pump is communicated with the bottom of the drying box through the pipeline and the air filtering cavity, and the air outlet of the air extracting pump is sequentially communicated with the heating cylinder, the air distributing cavity and the air spraying pipe, so that circulating flow of hot air in the drying box is achieved, and heat loss caused by the fact that the hot air is directly discharged out of the drying box is avoided; and the cost is reduced while the energy utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of color-changing film processing, in particular to a thermal drying device for automobile color-changing film. Background Art

[0002] With the continuous improvement of people's living standards, more and more people buy cars. In order to maintain the car, they usually maintain it by spraying paint, which increases the cost of car maintenance. At this time, most people choose a color-changing film with optional color attached to the original paint; among them, the scratch-resistant and repairable color-changing film is the most popular, and the scratch-resistant and repairable color-changing film requires the non-silicone release film to be scraped or sprayed with decorative bonding glue on the surface of the non-silicone release film through a scraper or a slot coating head during the production process, and then dried in an oven.

[0003] However, the drying system used in the production process of the existing scratch-resistant and repairable color-changing film has certain defects. For example, in the patent document with the authorization announcement number "CN113883866B", hot air is directly discharged to the outside from the air outlet. Since there is still a lot of heat remaining in the hot air, the heat loss caused by direct discharge is large, and the energy utilization rate is low, which leads to higher costs. Utility Model Content

[0004] The purpose of the utility model is to provide a thermal drying device for a car color-changing film, which solves the problem of poor cooling effect of the above-mentioned device.

[0005] To achieve the above-mentioned purpose, the utility model provides a car color-changing film hot drying device, including a drying box, an air filter chamber connected to the bottom of the drying box, an air pump connected to the air filter chamber through a pipeline, a heating cylinder connected to the air outlet of the air pump, an air separation chamber connected to the air outlet of the heating cylinder, a plurality of air injection pipes connected to the air separation chamber and a plurality of nozzles fixed to the air injection pipes, the air injection pipes are distributed inside the drying box, and the two side walls of the drying box are respectively provided with an aligned film inlet and a film outlet, and a transmission mechanism is provided between the film inlet and the film outlet.

[0006] Furthermore, the lower part of the drying box is symmetrically provided with inclined baffles, and the inclined baffles are provided with a plurality of convex strips.

[0007] Furthermore, a through slot communicating with the air filter chamber is provided at the inner bottom of the drying box, a mesh cover is fixedly connected to the inner bottom of the drying box, and the through slot is located inside the mesh cover.

[0008] Furthermore, the bottom of the drying box is provided with an annular groove for the mesh cover to be embedded in.

[0009] Furthermore, the interior of the air filter chamber is provided with a temporary storage chamber, a dust filtering chamber, a drying chamber, a purification chamber and an air outlet chamber which are connected in sequence, and the air outlet chamber is connected to the air pump through a plurality of air outlet pipes.

[0010] Furthermore, the air outlet pipe array is distributed with six pipes, the first transverse pipe connects the six air outlet pipes, the side of the first transverse pipe facing away from the air outlet pipe is connected to three first air collecting pipes, a first air collecting pipe is arranged between two of the air outlet pipes, the three first air collecting pipes are connected through the second transverse pipe, the side of the second transverse pipe facing away from the first air collecting pipe is connected to two second air collecting pipes, a second air collecting pipe is arranged between two of the first air collecting pipes, the two second air collecting pipes are connected through the third transverse pipe, the side of the third transverse pipe facing away from the second air collecting pipe is connected to a third air collecting pipe, and the third air collecting pipe is connected to the air pump.

[0011] Furthermore, the interior of the dust filtering chamber is filled with dust-absorbing cotton, the interior of the drying chamber is filled with soda lime, the interior of the purification chamber is filled with activated carbon, and the bottom of the temporary storage chamber is provided with a closable and openable drainage pipe.

[0012] Furthermore, the side walls of the dust filtering chamber, the drying chamber and the purification chamber are all provided with opening and closing doors.

[0013] Furthermore, the connection point between the dust filtering chamber and the drying chamber, and the connection point between the purification chamber and the air outlet chamber are separated by a mesh plate.

[0014] Furthermore, an electric heating wire is provided inside the heating cylinder, and the heating cylinder is fixedly connected to the side wall of the drying box through a connecting block.

[0015] Furthermore, an observation window is provided on the side wall of the drying box.

[0016] Furthermore, two square bars are fixedly connected inside the drying box, a plurality of cross bars are provided between the square bars, both ends of the cross bars are adjustably connected to the square bars, the jet pipe is installed under the cross bars by a plurality of cable ties, and the jet pipe is connected to the air distribution chamber by a hose.

[0017] Furthermore, an inverted U-shaped block is fixedly connected to the end of the cross bar, the square bar is located inside the inverted U-shaped block, a threaded hole is provided on the side wall of the inverted U-shaped block, a bolt is threadedly connected to the threaded hole and the end of the bolt is tightly against the square bar.

[0018] The beneficial effects of the utility model are as follows: an air pump is provided in the utility model, the air inlet of the air pump is connected with the bottom of the drying box through a pipeline and an air filter chamber, and the air outlet of the air pump is connected with the heating cylinder, the air separation chamber and the air injection pipe in sequence, thereby realizing the circulation flow of hot air inside the drying box, avoiding heat loss caused by direct discharge of hot air from the drying box; improving energy utilization while reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0020] Figure 1 It is a first isometric schematic diagram of the utility model;

[0021] Figure 2 It is a second isometric schematic diagram of the utility model;

[0022] Figure 3 is a cross-sectional schematic diagram of a drying box;

[0023] Figure 4 It is a partial cross-sectional schematic diagram of the air filter chamber and the drying box.

[0024] In the figure: 1. Drying box; 2. Observation window; 3. Air distribution chamber; 4. Film inlet; 5. Opening and closing door; 6. Motor; 7. Second air collecting pipe; 8. First air collecting pipe; 9. Third air collecting pipe; 10. Vacuum pump; 11. Heating cylinder; 12. Inverted U-shaped block; 13. Film outlet; 14. Through groove; 15. Mesh cover; 16. Roller; 17. Cable tie; 18. Raised strip; 19. Inclined baffle; 20. Air jet pipe; 21. Cross bar; 22. Mesh plate; 23. Temporary storage chamber; 24. Dust filtration chamber; 25. Drying chamber; 26. Purification chamber; 27. Air outlet chamber; 28. Square rod; 29. ​​Air filter chamber. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0026] like Figure 1-4As shown, a car color-changing film hot drying device comprises a drying box 1, an air filter chamber 29 connected to the bottom of the drying box 1, an air pump 10 connected to the air filter chamber 29 through a pipeline, a heating cylinder 11 connected to the air outlet of the air pump 10, an air separation chamber 3 connected to the air outlet of the heating cylinder 11, a plurality of air injection pipes 20 connected to the air separation chamber 3 and a plurality of nozzles fixed to the air injection pipe 20, the air injection pipe 20 is distributed inside the drying box 1, and the two side walls of the drying box 1 are respectively provided with an aligned film inlet 4 and a film outlet 13, and a transmission mechanism is provided between the film inlet 4 and the film outlet 13. Therefore, in this embodiment, the dried gas will enter the air filter chamber 29 from the bottom of the drying box 1 under the action of the air pump 10, and then flow out from the air pump 10 and flow into Secondary heating is carried out in the heating cylinder 11, and then the hot air passes through the gas distribution chamber 3 and the injection pipe 20, and finally flows back to the drying box 1 from the nozzle. Therefore, the utility model recycles the hot air and avoids the loss of heat in the hot air; improves the energy utilization rate and reduces the cost; in addition, the hot air flows from top to bottom in the drying box 1, which is beneficial to the uniformity of the temperature throughout the drying box 1, and is beneficial to improving the drying quality of the color-changing film; in addition, the transmission mechanism can adopt a roller 16 transmission mechanism, such as a plurality of rollers 16 are rotatably connected to the inside of the drying box 1 through bearings, each roller 16 is fixedly connected to a sprocket, and the chain is meshed with all the sprockets, and one of the rollers 16 is fixedly connected to the output end of the motor 6; thereby realizing the rotation of the roller 16 and realizing the transmission of the color-changing film.

[0027] In this embodiment, the lower part of the drying box 1 is symmetrically provided with inclined baffles 19 to facilitate the concentration of hot air; the inclined baffles 19 are provided with a plurality of convex strips 18 to facilitate the collection of debris, such as fallen bolts or paint, to prevent them from falling into the air filter chamber 29 and hindering the circulation of hot air; and the inner bottom of the drying box 1 is provided with a through groove 14 connected to the air filter chamber 29, and the inner bottom of the drying box 1 is fixedly connected with a mesh cover 15, and the through groove 14 is located inside the mesh cover 15, which further prevents debris from falling into the air filter chamber 29 through the through groove 14 and hindering the circulation of hot air; and the bottom of the drying box 1 is provided with an annular groove for the mesh cover 15 to be embedded, which is convenient for the disassembly and assembly of the mesh cover 15; in addition, since the water in the color-changing film material will be evaporated during the drying process, Therefore, the evaporated water vapor will diffuse in the entire drying oven of the dryer, which may cause the drying oven to be damp and cause short-circuit damage to the electrical components, resulting in additional maintenance costs; therefore, the interior of the air filter chamber 29 is provided with a temporary storage chamber 23, a dust filter chamber 24, a drying chamber 25, a purification chamber 26 and an air outlet chamber 27 which are connected in sequence, and the air outlet chamber 27 is connected to the vacuum pump 10 through a number of air outlet pipes, the interior of the dust filter chamber 24 is filled with dust-absorbing cotton, the interior of the drying chamber 25 is filled with soda lime, and the interior of the purification chamber 26 is filled with activated carbon, thereby improving the quality of the hot air and preventing the dust, water vapor or harmful gases in the hot air from causing damage to the color-changing film, equipment and human body; the dust filter chamber 24, the drying chamber 25 and the purification chamber 26 are connected to the air outlet chamber 27, and the dust filter chamber 24 is connected to the air outlet chamber 27. The side walls of the chamber 26 are each provided with an opening and closing door 5, which is convenient for replacing the dust cotton, soda lime and activated carbon; the connection between the dust filtering chamber 24 and the drying chamber 25, and the connection between the purification chamber 26 and the air outlet chamber 27 are separated by a mesh plate 22, thereby preventing the fillers between the chambers from being isolated while ensuring the circulation of hot air; in addition, the water droplets formed on the inner wall of the drying box 1 will fall into the temporary storage chamber 23 for storage through the inclined baffle 19; the water vapor remaining in the hot air will be dried by the drying chamber 25, thereby ensuring the dryness of the gas inside the drying box 1, thereby preventing short circuits in electrical components, and the activated carbon is beneficial to adsorbing harmful gases generated by the color-changing film material during the drying process; and the bottom of the temporary storage chamber 23 is provided with a closable and an opened drainage pipe to facilitate the discharge of accumulated water; in addition, there are six air outlet pipes in the array, the first transverse pipe connects the six air outlet pipes, the first transverse pipe is connected to three first air collecting pipes 8 on the side away from the air outlet pipe, a first air collecting pipe 8 is arranged between two air outlet pipes, the three first air collecting pipes 8 are connected through the second transverse pipe, the second transverse pipe is connected to two second air collecting pipes 7 on the side away from the first air collecting pipe 8, a second air collecting pipe 7 is arranged between the two first air collecting pipes 8, the two second air collecting pipes 7 are connected through the third transverse pipe, the third transverse pipe is connected to a third air collecting pipe 9 on the side away from the second air collecting pipe 7, the third air collecting pipe 9 is connected to the vacuum pump 10, which ensures the uniform flow of hot air in the drying box 1 and the air filtering chamber 29, and ensures the drying quality and air filtering quality;The heating tube 11 is provided with an electric heating wire inside, and the heating tube 11 is fixedly connected to the side wall of the drying box 1 through a connecting block, so as to heat the gas; an observation window 2 is provided on the side wall of the drying box 1, so as to facilitate viewing the drying situation inside the drying box 1; and two square rods 28 are fixedly connected inside the drying box 1, and a plurality of cross rods 21 are provided between the square rods 28, and the two ends of the cross rods 21 are adjustably connected to the square rods 28, and the jet pipe 20 is installed under the cross rod 21 through a plurality of cable ties 17, and the jet pipe 20 is connected to the gas distribution chamber 3 through a hose, and an inverted U-shaped block 12 is fixedly connected to the end of the cross rod 21, and the square rod 28 is located inside the inverted U-shaped block 12, and a threaded hole is provided on the side wall of the inverted U-shaped block 12, and a bolt is threadedly connected to the threaded hole and the end of the bolt is close to the square rod 28, so as to facilitate the debugging and installation of the jet pipe 20. ;

[0028] Working principle: When the device is started, the vacuum pump 10 is started, and the hot air inside the drying box 1 will flow through the temporary storage chamber 23, the dust filtering chamber 24, the drying chamber 25, the purification chamber 26 and the air outlet chamber 27 in sequence through the through groove 14, and flow into the vacuum pump 10 through the third air collecting pipe 9, and then flow through the heating cylinder 11, the air separation chamber 3 and the injection pipe 20 in sequence, and finally enter the drying box 1 from the top of the nozzle; thereby realizing the recycling of hot air, avoiding the heat loss caused by the direct discharge of hot air to the outside world in the past; improving the utilization rate of energy while reducing costs.

[0029] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A thermal drying device for a car color-changing film, characterized in that: The invention comprises a drying box (1), an air filter chamber (29) connected to the bottom of the drying box (1), an air pump (10) connected to the air filter chamber (29) through a pipeline, a heating cylinder (11) connected to the air outlet of the air pump (10), an air separation chamber (3) connected to the air outlet of the heating cylinder (11), a plurality of air injection pipes (20) connected to the air separation chamber (3) and a plurality of nozzles fixed to the air injection pipes (20), wherein the air injection pipes (20) are distributed inside the drying box (1), and the two side walls of the drying box (1) are respectively provided with an aligned film inlet (4) and a film outlet (13), and a transmission mechanism is provided between the film inlet (4) and the film outlet (13).

2. The car color-changing film heat-drying device according to claim 1, characterized in that: The lower part of the drying box (1) is symmetrically provided with an inclined baffle (19), and the inclined baffle (19) is provided with a plurality of convex strips (18).

3. The car color-changing film heat-drying device according to claim 2, characterized in that: The inner bottom of the drying box (1) is provided with a through groove (14) communicating with the air filter chamber (29), and the inner bottom of the drying box (1) is fixedly connected with a mesh cover (15), and the through groove (14) is located inside the mesh cover (15).

4. The car color-changing film heat-drying device according to claim 3, characterized in that: The bottom of the drying box (1) is provided with an annular groove for the mesh cover (15) to be embedded.

5. The car color-changing film heat-drying device according to claim 1, characterized in that: The interior of the air filtering chamber (29) is provided with a temporary storage chamber (23), a dust filtering chamber (24), a drying chamber (25), a purification chamber (26) and an air outlet chamber (27) which are connected in sequence, and the air outlet chamber (27) is connected to the air pump (10) through a plurality of air outlet pipes.

6. The car color-changing film heat-drying device according to claim 5, characterized in that: The interior of the dust filtering chamber (24) is filled with dust cotton, the interior of the drying chamber (25) is filled with soda lime, the interior of the purification chamber (26) is filled with activated carbon, and the bottom of the temporary storage chamber (23) is provided with a closable and openable drainage pipe.

7. The car color-changing film heat-drying device according to claim 5, characterized in that: The side walls of the dust filtering chamber (24), the drying chamber (25) and the purification chamber (26) are all provided with opening and closing doors (5).

8. The car color-changing film heat-drying device according to claim 1, characterized in that: An electric heating wire is provided inside the heating cylinder (11), and the heating cylinder (11) is fixedly connected to the side wall of the drying box (1) via a connecting block.

9. The car color-changing film heat-drying device according to claim 1, characterized in that: Two square bars (28) are fixedly connected inside the drying box (1), a plurality of cross bars (21) are arranged between the square bars (28), the two ends of the cross bars (21) are adjustably connected to the square bars (28), the air injection pipe (20) is installed under the cross bars (21) through a plurality of cable ties (17), and the air injection pipe (20) is connected to the air distribution chamber (3) through a hose.

10. The thermal drying device for automobile color-changing film according to claim 9, characterized in that: The end of the cross bar (21) is fixedly connected to an inverted U-shaped block (12), the square bar (28) is located inside the inverted U-shaped block (12), a threaded hole is provided on the side wall of the inverted U-shaped block (12), a bolt is threadedly connected to the threaded hole and the end of the bolt is tightly attached to the square bar (28).

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