Thin film drying device for electromagnetic shielding film production
By designing a thin film drying device including heating roller, refrigeration roller, power roller and tightening roller in the electromagnetic shielding film production, the temperature increase and wrinkle problems after the electromagnetic shielding film is dried, and a more efficient drying and leveling effect is achieved.
Patent Information
- Application Number
- CN202421456607.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In the prior art, the temperature of the electromagnetic shielding film increases after drying, which affects subsequent process processing, and it is easy to cause wrinkles if not level and press them in time before and after drying.
A thin film drying device for the production of electromagnetic shielding film is designed, including heating rollers, refrigeration rollers, power rollers and tension rollers. The electromagnetic shielding film is heated, dried, cooled, and leveled by the combination of these components.
The temperature of the electromagnetic shielding film is effectively controlled, which facilitates subsequent processing, and avoids the generation of wrinkles through the leveling and flattening function, which improves production efficiency and product quality.
Smart Images
Figure CN222959011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic shielding film production, in particular to a film drying device for electromagnetic shielding film production. Background Art
[0002] An electromagnetic shielding film is a film that is pasted on glass or doors and windows to prevent electromagnetic information leakage, electromagnetic interference, and electromagnetic radiation pollution.
[0003] When producing an electromagnetic shielding film, it is necessary to dry the electromagnetic shielding film. In the prior art, the temperature of the electromagnetic shielding film will rise after drying. The heated electromagnetic shielding film is not convenient for subsequent process operations. Moreover, if the electromagnetic shielding film is not leveled in time before and after drying, or not flattened in time after drying, it is easy to produce wrinkles. To solve the above problems, a film drying device for electromagnetic shielding film production is proposed in this application. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a film drying device for electromagnetic shielding film production. It can heat and dry the electromagnetic shielding film by setting a heating roller, and can cool the electromagnetic shielding film by setting a cooling roller, which is convenient for subsequent processes; by setting the cooperation of a power roller and a tension roller, the conveyed electromagnetic shielding film can be leveled and flattened to avoid wrinkles.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A film drying device for the production of electromagnetic shielding films, comprising an electromagnetic shielding film drying oven. An electromagnetic shielding film inlet is provided on the right side of the electromagnetic shielding film drying oven, and an electromagnetic shielding film outlet is provided on the left side of the electromagnetic shielding film drying oven. Two motors are fixedly connected to the front end of the electromagnetic shielding film drying oven. The output end of each motor is fixedly connected to a power roller, and each power roller penetrates through the electromagnetic shielding film drying oven and is rotatably connected thereto. Two tension rollers are rotatably connected to the inner wall of the electromagnetic shielding film drying oven. A pair of heating rollers and cooling rollers rotatably connected to the electromagnetic shielding film drying oven are provided inside the electromagnetic shielding film drying oven. A box body is fixedly connected to the top of the electromagnetic shielding film drying oven. A heating chamber and a cooling chamber are provided inside the box body. A plurality of semiconductor refrigeration sheets fixedly connected to the box body penetrate through the box body. Two first connecting pipes communicated with the box body are fixedly connected to the side wall of the box body. Each first connecting pipe is fixedly connected to a negative pressure fan, and each negative pressure fan is installed on the top of the electromagnetic shielding film drying oven. Each negative pressure fan is fixedly connected to a second connecting pipe. Rotary joints are installed at the front and rear ends of each heating roller and cooling roller. Each second connecting pipe is respectively connected to its corresponding rotary joint. Two third connecting pipes communicated with the box body are fixedly connected to the front end of the box body. Each third connecting pipe is respectively connected to its corresponding rotary joint.
[0007] Preferably, damping bearings are installed at both ends of the tension roller. The damping bearings are connected to the inner wall of the electromagnetic shielding film drying oven. The damping bearings are provided with an outer ring and an inner ring. The outer ring is fixedly connected to the inner wall of the electromagnetic shielding film drying oven, and the inner ring is coaxially fixedly connected to the power roller.
[0008] Preferably, both the heating roller and the cooling roller are hollow. The front ends of the heating roller and the cooling roller are communicated with the third connecting pipe, and the rear ends of the heating roller and the cooling roller are communicated with the second connecting pipe.
[0009] Preferably, the second connecting pipe and the third connecting pipe on the right side are both communicated with the heating chamber, and the second connecting pipe and the third connecting pipe on the left side are both communicated with the cooling chamber.
[0010] Preferably, the plurality of semiconductor refrigeration sheets are evenly distributed. The semiconductor refrigeration sheets are divided into a heating end and a cooling end. The heating end is arranged inside the heating chamber, and the cooling end is arranged inside the cooling chamber.
[0011] Preferably, heat insulation layers are provided on the inner walls of the heating chamber and the cooling chamber. The material of the heat insulation layer is rock wool.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The output ends of two motors drive two driving rollers to rotate relatively, providing power for the transportation of the electromagnetic shielding film to make it move. The tensioning roller can rotate with a certain resistance through the provided damping bearing, which can tension the transported electromagnetic shielding film to make it fit the outer walls of the heating roller and the cooling roller, and has good drying and cooling effects. Through the cooperation of the driving roller and the tensioning roller, the transported electromagnetic shielding film can be leveled and flattened to avoid wrinkles.
[0014] 2. The heating end of the semiconductor refrigeration sheet heats the air in the heating cavity. The hot air in the heating cavity is injected into the two heating rollers through the first connecting pipe and the second connecting pipe, and finally flows back to the heating cavity through the third connecting pipe, filling the heating rollers with hot air to heat the transported electromagnetic shielding film to dry it, and the hot air can be recycled, saving energy consumption.
[0015] 3. The cooling end of the semiconductor refrigeration sheet cools the air in the cooling cavity. The cold air in the cooling cavity is injected into the two cooling rollers through the first connecting pipe and the second connecting pipe, and finally flows back to the cooling cavity through the third connecting pipe, filling the cooling rollers with cold air to cool the transported electromagnetic shielding film, and the cold air can be recycled, saving energy consumption.
[0016] In summary, by setting the heating roller, the electromagnetic shielding film can be heated and dried, and by setting the cooling roller, the electromagnetic shielding film can be cooled, facilitating the subsequent processes; through the cooperation of the driving roller and the tensioning roller, the transported electromagnetic shielding film can be leveled and flattened to avoid wrinkles. Description of the Drawings
[0017] Figure 1 It is a front view structural schematic diagram of a film drying device for producing electromagnetic shielding films proposed by the present utility model;
[0018] Figure 2 It is a rear view structural schematic diagram of a film drying device for producing electromagnetic shielding films proposed by the present utility model;
[0019] Figure 3 It is a cross-sectional view of a film drying device for producing electromagnetic shielding films proposed by the present utility model.
[0020] In the figure: 1 electromagnetic shielding film drying box, 2 electromagnetic shielding film inlet, 3 electromagnetic shielding film outlet, 4 motor, 5 driving roller, 6 tensioning roller, 7 damping bearing, 8 heating roller, 9 cooling roller, 10 box body, 11 heating cavity, 12 cooling cavity, 13 semiconductor refrigeration sheet, 14 first connecting pipe, 15 negative pressure fan, 16 second connecting pipe, 17 rotary joint, 18 third connecting pipe. Detailed Embodiment
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0022] Referring to Figures 1 - 3 , a film drying device for producing electromagnetic shielding films includes an electromagnetic shielding film drying oven 1. An electromagnetic shielding film inlet 2 is provided on the right side of the electromagnetic shielding film drying oven 1, and an electromagnetic shielding film outlet 3 is provided on the left side of the electromagnetic shielding film drying oven 1. The electromagnetic shielding film enters the electromagnetic shielding film drying oven 1 through the electromagnetic shielding film inlet 2, is dried and cooled, and then is conveyed out through the electromagnetic shielding film outlet 3.
[0023] Two motors 4 are fixedly connected to the front end of the electromagnetic shielding film drying oven 1. The output end of each motor 4 is fixedly connected to a power roller 5. Each power roller 5 passes through the electromagnetic shielding film drying oven 1 and is rotatably connected thereto. The power roller 5 abuts against the outer wall of the electromagnetic shielding film to provide power for its conveyance. Two tension rollers 6 are rotatably connected to the inner wall of the electromagnetic shielding film drying oven 1. Damping bearings 7 are installed at both ends of the tension roller 6. The damping bearing 7 is connected to the inner wall of the electromagnetic shielding film drying oven 1. The damping bearing 7 is provided with an outer ring and an inner ring. The outer ring is fixedly connected to the inner wall of the electromagnetic shielding film drying oven 1, and the inner ring is coaxially fixedly connected to the power roller 5. By setting the damping bearing 7, the conveyed electromagnetic shielding film can be tightened, and the subsequent drying and cooling effects are good. By setting the cooperation of the power roller 5 and the tension roller 6, the conveyed electromagnetic shielding film can be leveled and flattened to avoid wrinkles.
[0024] A pair of heating rollers 8 and cooling rollers 9 that are rotatably connected to the electromagnetic shielding film drying oven 1 are provided in the electromagnetic shielding film drying oven 1. The heating rollers 8 and the cooling rollers 9 penetrate through the electromagnetic shielding film drying oven 1. The heating rollers 8 and the cooling rollers 9 are both hollow. The front ends of the heating rollers 8 and the cooling rollers 9 are both communicated with a third connecting pipe 18, and the rear ends of the heating rollers 8 and the cooling rollers 9 are both communicated with a second connecting pipe 16. A box body 10 is fixedly connected to the top of the electromagnetic shielding film drying oven 1. A heating chamber 11 and a cooling chamber 12 are provided in the box body 10. The second connecting pipe 16 and the third connecting pipe 18 on the right side are both communicated with the heating chamber 11, and the second connecting pipe 16 and the third connecting pipe 18 on the left side are both communicated with the cooling chamber 12. A plurality of semiconductor refrigeration sheets 13 are provided through the box body 10 and fixedly connected thereto. The plurality of semiconductor refrigeration sheets 13 are evenly distributed at equal intervals. The semiconductor refrigeration sheets 13 are divided into a heating end and a cooling end. The heating end is arranged in the heating chamber 11, and the cooling end is arranged in the cooling chamber 12. Heat insulation layers are provided on the inner walls of the heating chamber 11 and the cooling chamber 12. The material of the heat insulation layer is rock wool to avoid heat loss.
[0025] Two first connecting pipes 14 communicating with the side wall of the box body 10 are fixedly connected thereto. Each first connecting pipe 14 is fixedly connected with a negative pressure fan 15. Each negative pressure fan 15 is installed on the top of the electromagnetic shielding film drying oven 1. Each negative pressure fan 15 is fixedly connected with a second connecting pipe 16. Rotary joints 17 are installed at the front and rear ends of each heating roller 8 and each cooling roller 9. Each second connecting pipe 16 is respectively connected with its corresponding rotary joint 17. Two third connecting pipes 18 communicating with the box body 10 are fixedly connected to the front end of the box body 10. Each third connecting pipe 18 is respectively connected with its corresponding rotary joint 17. The hot air in the heating chamber 11 is injected into the heating roller 8, so that the temperature of the heating roller 8 rises to heat and dry the electromagnetic shielding film in contact therewith. The cold air in the cooling chamber 12 is injected into the cooling roller 9, so that the temperature of the cooling roller 9 drops to cool the electromagnetic shielding film in contact therewith and restore it to room temperature, facilitating the processing of the next process.
[0026] In the present utility model, the electromagnetic shielding film enters the electromagnetic shielding film drying oven 1 through the electromagnetic shielding film inlet 2, is dried and cooled and then conveyed out through the electromagnetic shielding film outlet 3; two motors 4 are started, and the output ends of the two motors 4 drive two driving rollers 5 to rotate relatively, providing power for the conveyance of the electromagnetic shielding film to make it convey and move. The tensioning roller 6 can rotate with a certain resistance through the provided damping bearing 7, and can tension the conveyed electromagnetic shielding film to make it fit the outer walls of the heating roller 8 and the cooling roller 9, and has a good drying and cooling effect. Through the cooperation of the driving roller 5 and the tensioning roller 6, the conveyed electromagnetic shielding film can be leveled and flattened to avoid wrinkles; the semiconductor refrigeration sheet 13 is energized to make it work. The air in the heating chamber 11 is heated through the heating end of the semiconductor refrigeration sheet 13, and the air in the cooling chamber 12 is cooled through the cooling end of the semiconductor refrigeration sheet 13, and two negative pressure fans 15 are started; the hot air in the heating chamber 11 is injected into the two heating rollers 8 through the first connecting pipe 14 and the second connecting pipe 16, and finally flows back to the heating chamber 11 through the third connecting pipe 18, so that the heating roller 8 is filled with hot air to heat and dry the conveyed electromagnetic shielding film, and the hot air can be recycled, saving energy consumption; the cold air in the cooling chamber 12 is injected into the two cooling rollers 9 through the first connecting pipe 14 and the second connecting pipe 16, and finally flows back to the cooling chamber 12 through the third connecting pipe 18, so that the cooling roller 9 is filled with cold air to cool the conveyed electromagnetic shielding film, and the cold air can be recycled, saving energy consumption.
[0027] By setting the cooperation of the heating roller, the cooling roller, the driving roller and the tensioning roller, the present utility model solves the problems in the prior art that the temperature of the electromagnetic shielding film will rise after drying the electromagnetic shielding film, the heated electromagnetic shielding film is not convenient for subsequent processes, and wrinkles are likely to occur if the electromagnetic shielding film is not leveled and flattened in time before and after drying.
Claims
1. A film drying device for producing electromagnetic shielding film, comprising an electromagnetic shielding film drying box (1), characterized in that: The electromagnetic shielding film drying box (1) is provided with an electromagnetic shielding film feed port (2) on the right side, and an electromagnetic shielding film discharge port (3) on the left side. The front end of the electromagnetic shielding film drying box (1) is fixedly connected to two motors (4), and the output end of each motor (4) is fixedly connected to a power roller (5), and each power roller (5) passes through the electromagnetic shielding film drying box (1) and is rotatably connected thereto. The inner wall of the electromagnetic shielding film drying box (1) is rotatably connected to two tensioning rollers (6), and the electromagnetic shielding film drying box (1) is provided with a pair of heating rollers (8) and cooling rollers (9) rotatably connected thereto. The top of the electromagnetic shielding film drying box (1) is fixedly connected to a box body (10), and a heating cavity (11) and a cooling cavity (12) are provided in the box body (10). 0) is penetrated by a plurality of semiconductor refrigeration plates (13) fixedly connected thereto, the side walls of the box body (10) are fixedly connected to two first connecting tubes (14) connected thereto, each of the first connecting tubes (14) is fixedly connected to a negative pressure fan (15), each of the negative pressure fans (15) is installed on the top of the electromagnetic shielding film drying box (1), each of the negative pressure fans (15) is fixedly connected to a second connecting tube (16), the front and rear ends of each of the heating rollers (8) and the cooling rollers (9) are installed with a rotating joint (17), each of the second connecting tubes (16) is respectively connected to its corresponding rotating joint (17), the front end of the box body (10) is fixedly connected to two third connecting tubes (18) connected thereto, each of the third connecting tubes (18) is respectively connected to its corresponding rotating joint (17).
2. A film drying device for producing electromagnetic shielding film according to claim 1, characterized in that: Damping bearings (7) are installed at both ends of the tensioning roller (6), and the damping bearings (7) are connected to the inner wall of the electromagnetic shielding film drying box (1). The damping bearing (7) is provided with an outer ring and an inner ring, and the outer ring is fixedly connected to the inner wall of the electromagnetic shielding film drying box (1), and the inner ring is coaxially fixedly connected to the power roller (5).
3. A film drying device for producing electromagnetic shielding film according to claim 1, characterized in that: The heating roller (8) and the cooling roller (9) are both hollow, the front ends of the heating roller (8) and the cooling roller (9) are connected to the third connecting tube (18), and the rear ends of the heating roller (8) and the cooling roller (9) are connected to the second connecting tube (16).
4. The thin film drying device for producing electromagnetic shielding film according to claim 1, characterized in that: The second connecting pipe (16) and the third connecting pipe (18) on the right side are both connected to the heating chamber (11), and the second connecting pipe (16) and the third connecting pipe (18) on the left side are both connected to the refrigeration chamber (12).
5. The thin film drying device for producing electromagnetic shielding film according to claim 1, characterized in that: The plurality of semiconductor refrigeration sheets (13) are distributed at equal intervals, and the semiconductor refrigeration sheets (13) are divided into a heating end and a cooling end, the heating end is arranged in the heating cavity (11), and the cooling end is arranged in the cooling cavity (12).
6. The thin film drying device for producing electromagnetic shielding film according to claim 1, characterized in that: The inner walls of the heating chamber (11) and the cooling chamber (12) are provided with a thermal insulation layer, and the material of the thermal insulation layer is rock wool.