Film drying equipment
The film drying equipment, with its arched oven and exhaust/return air system, solves the problem of poor film drying effect, achieves efficient film drying and waste heat reuse, and improves the space utilization rate of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LAIYI PACKING MASCH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
In the current film production process, the adhesive drying effect is not good, which affects the film quality and efficiency, and the equipment space is not fully utilized.
A film drying device including a fan drive mechanism and an oven mechanism was designed. It adopts an arched oven and an air outlet and return system. The film is dried by using an air outlet trough and a return air box, and the waste gas is discharged through a waste discharge mechanism to realize the reuse of waste heat.
It improves the drying effect and efficiency of the film, reduces the equipment space, and enhances the flatness of the film and production efficiency.
Smart Images

Figure CN224162914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a film drying equipment and belongs to the field of film production technology. Background Technology
[0002] Currently, in the film production process, adhesives are applied to the film surface to fill microscopic irregularities (such as crystal points and scratches) and form a uniform coating, reducing surface roughness. The cured adhesive then covers the substrate, providing a smoother interface. After applying the adhesive, a drying and curing process is required, and the effectiveness of this process directly impacts the film's quality and subsequent use. Therefore, how to efficiently and effectively dry adhesive-coated films is a pressing issue that needs to be addressed. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a film drying device that not only improves the drying effect and efficiency of the film, but also reduces the equipment space.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A film drying device includes a fan drive mechanism and a drying oven mechanism;
[0006] The fan drive mechanism includes a first centrifugal fan, an air outlet pipe, and a return air pipe. The air outlet pipe is connected to the air outlet of the first centrifugal fan, and the return air pipe is connected to the air inlet of the first centrifugal fan.
[0007] The oven mechanism includes an arched oven, in which a first partition and a second partition are provided in the inner cavity of the arched oven. A film conveying assembly is provided between the outer wall of the arch of the oven and the first partition. An air outlet duct is located between the first partition and the second partition, and an air return duct is located between the second partition and the side wall of the arched oven.
[0008] The first partition is provided with an air outlet slot and a return air box. The air outlet slot is used to dry the film on the film conveying assembly.
[0009] The air outlet slot is connected to the air outlet duct, and the air outlet duct is connected to the air outlet pipe; the return air box is connected to the return air duct, and the return air duct is connected to the return air pipe.
[0010] Furthermore, the return air box includes a return air box body, a return air plate, and a duct. The return air plate is connected to the return air box body and is disposed on a first partition. One end of the duct is connected to the return air box body, and the other end of the duct is connected to the return air duct.
[0011] Furthermore, the return air plate has several return air holes.
[0012] Furthermore, the arched oven is provided with an air inlet and a return air inlet. The air outlet duct is connected to the air inlet, the air inlet is connected to the air outlet pipe, the return air duct is connected to the return air inlet, and the return air inlet is connected to the return air pipe.
[0013] Furthermore, a guide plate is provided on the air outlet duct, and the guide plate is located at the air inlet.
[0014] Furthermore, it also includes a waste discharge mechanism, which includes a second centrifugal fan, a waste discharge main pipe, a waste discharge horizontal pipe, and a waste suction box. The arched oven is provided with a waste discharge interface, which is connected to the air inlet of the second centrifugal fan. One end of the waste discharge main pipe is connected to the waste discharge interface, and the other end of the waste discharge main pipe is connected to the middle of the waste discharge horizontal pipe. The two waste suction boxes are respectively located at both ends of the waste discharge horizontal pipe.
[0015] Furthermore, the waste suction box includes a waste suction box body and a waste suction plate. The waste suction box body is connected to the waste discharge horizontal pipe, and the waste suction plate is connected to the waste suction box body. The waste suction plate is set on the outer wall of the arched door of the arched oven, and a number of waste suction holes are opened on the waste suction plate.
[0016] By adopting the above technical solution, this utility model uses a fan-driven mechanism to blow air onto the film placed in the drying oven to dry the film. Simultaneously, the waste gas generated during the drying process can be discharged by a waste exhaust mechanism. The drying oven adopts an arched design, which reduces the equipment space while ensuring the film can be fully unfolded. The film is placed in an arched shape in the drying oven and dried by the combined action of the air outlet duct and the return air box, improving the drying effect and efficiency. Attached Figure Description
[0017] Figure 1 This is a front view of the film drying equipment of this utility model;
[0018] Figure 2 This is a front view of the fan drive mechanism of this utility model;
[0019] Figure 3 This is a front view of the oven mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the oven mechanism of this utility model;
[0021] Figure 5 for Figure 4 A magnified view of a portion of the image;
[0022] Figure 6 This is a schematic diagram of the internal structure of the air duct of this utility model;
[0023] Figure 7This is a schematic diagram of the installation of the air outlet duct and return air box of this utility model. Detailed Implementation
[0024] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0025] like Figure 1 As shown, this embodiment provides a film drying device, which includes a fan drive mechanism 1, a drying oven mechanism 2, and a waste discharge mechanism 4. The fan drive mechanism 1 blows air onto the film placed in the drying oven mechanism 2 to dry the film. The waste gas generated during the drying process can be discharged by the waste discharge mechanism 4.
[0026] like Figure 2 As shown, the fan drive mechanism 1 of this embodiment includes a first centrifugal fan 11, an air outlet pipe 12 and a return air pipe 13. The air outlet pipe 12 is connected to the air outlet of the first centrifugal fan 11, and the return air pipe 13 is connected to the air inlet of the first centrifugal fan 11. The first centrifugal fan 11 provides the air force required for drying the film to the drying oven mechanism 2.
[0027] like Figure 4 As shown, in this embodiment, the film conveying assembly 3 is a guide roller. Multiple guide rollers are evenly arranged in an arch shape. The film enters the film conveying assembly 3 from the previous stage equipment, passes through each guide roller in sequence, and then enters the next stage equipment. The film is laid out on the film conveying assembly 3. The arched arrangement ensures that the film can be fully unfolded while also reducing the space required.
[0028] like Figures 2-7As shown, the oven mechanism 2 in this embodiment includes an arched oven 21. A first partition 201 and a second partition 202 are disposed within the inner cavity of the arched oven 21. A film conveying assembly 3 is disposed between the outer wall of the arch of the arched oven 21 and the first partition 201. An air outlet duct 22 is located between the first partition 201 and the second partition 202, and a return air duct 23 is located between the second partition 202 and the side wall of the arched oven 21. An air inlet duct 26 and a return air inlet duct 27 are disposed on the front side wall of the arched oven 21. The air outlet duct 22 is connected to the air inlet duct 26, which is connected to the air outlet pipe 12 via a flexible hose. The return air duct 23 is connected to the return air inlet duct 27, which is connected to the return air pipe 13 via a flexible hose. The first partition 201 is equipped with an air outlet slot 24 and a return air box 25. The air outlet slot 24 is connected to the air outlet duct 22, and the return air box 25 is connected to the return air duct 23. After the first centrifugal fan 11 is started, the air enters the air outlet duct 22 through the air outlet pipe 12 and the air inlet 26 on the arched oven 21, and then blows onto the film through the air outlet slot 24 to dry the film on the film conveying assembly 3. Since the temperature of the freshly produced film is high, the heat dissipated during drying can return to the air inlet of the first centrifugal fan 11 through the return air box 25, the return air duct 23, and the return air pipe 13, and then blow the residual heat into the oven to dry the film, thus reusing the residual heat.
[0029] like Figures 4-7 As shown, the return air box 25 in this embodiment includes a return air box body 251, a return air plate 252, and a duct 253. The return air plate 252 is connected to the return air box body 251 and is disposed on the first partition 201. The return air plate 252 has several return air holes. One end of the duct 253 is connected to the return air box body 251, and the other end of the duct 253 is connected to the return air duct 23. Since the return air and the intake air need to be isolated, and both the exhaust duct 24 and the return air box 25 are installed on the first partition 201, the return air box 25 is designed as an independent box. The return air enters the return air box body 251 through the return air holes on the return air plate 252, and then enters the return air duct 23 through the duct 253, thereby achieving isolation from the exhaust duct.
[0030] like Figure 6 As shown, the air outlet duct 22 of this embodiment is provided with a guide plate 221. The guide plate 221 is located at the air inlet 26. The air blown in from the first centrifugal fan 11 can be quickly blown to each air outlet slot 24 after being guided by the guide plate 221, thereby improving the drying effect.
[0031] like Figure 2 , 4As shown in Figure 5, the waste discharge mechanism 4 in this embodiment includes a second centrifugal fan 41, a waste discharge main pipe 42, a waste discharge horizontal pipe 43, and a waste suction box 44. A waste discharge interface 28 is provided on the top of the arched drying oven 21. The waste discharge interface 28 is connected to the air inlet of the second centrifugal fan 41 via a flexible hose. One end of the waste discharge main pipe 42 is connected to the waste discharge interface 28, and the other end of the waste discharge main pipe 42 is connected to the middle of the waste discharge horizontal pipe 43. Two waste suction boxes 44 are respectively located at both ends of the waste discharge horizontal pipe 43. The waste suction box 44 includes a waste suction box body 441 and a waste suction plate 442. The waste suction box body 441 is connected to the waste discharge horizontal pipe 43, and the waste suction plate 442 is connected to the waste suction box body 441. The waste suction plate 442 is located on the outer wall of the arch of the arched drying oven 21, and has several waste suction holes. The waste gas generated during the drying process can be discharged by the waste discharge mechanism 4. After the second centrifugal fan 41 is started, the exhaust gas enters the exhaust box 441 through the exhaust hole on the exhaust plate 442, and then is drawn out by the second centrifugal fan 41 through the exhaust horizontal pipe 43 and the exhaust main pipe 42.
[0032] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A film drying device, characterized in that: It includes a fan drive mechanism (1) and an oven mechanism (2); The fan drive mechanism (1) includes a first centrifugal fan (11), an air outlet pipe (12) and a return air pipe (13). The air outlet pipe (12) is connected to the air outlet of the first centrifugal fan (11), and the return air pipe (13) is connected to the air inlet of the first centrifugal fan (11). The oven mechanism (2) includes an arched oven (21), in which a first partition (201) and a second partition (202) are provided. A film conveying assembly (3) is provided between the outer wall of the arch of the oven (21) and the first partition (201). An air outlet duct (22) is located between the first partition (201) and the second partition (202), and a return air duct (23) is located between the second partition (202) and the side wall of the oven (21). The first partition (201) is provided with an air outlet slot (24) and a return air box (25). The air outlet slot (24) is used to dry the film on the film conveying assembly (3). The air outlet slot (24) is connected to the air outlet duct (22), and the air outlet duct (22) is connected to the air outlet pipe (12); the return air box (25) is connected to the return air duct (23), and the return air duct (23) is connected to the return air pipe (13).
2. The film drying equipment according to claim 1, characterized in that: The return air box (25) includes a return air box body (251), a return air plate (252), and a pipe (253). The return air plate (252) is connected to the return air box body (251) and is disposed on the first partition (201). One end of the pipe (253) is connected to the return air box body (251), and the other end of the pipe (253) is connected to the return air duct (23).
3. The film drying equipment according to claim 2, characterized in that: The return air plate (252) has several return air holes.
4. The film drying equipment according to claim 1, characterized in that: The arched oven (21) is provided with an air inlet (26) and a return air inlet (27). The air outlet duct (22) is connected to the air inlet (26). The air inlet (26) is connected to the air outlet pipe (12). The return air duct (23) is connected to the return air inlet (27). The return air inlet (27) is connected to the return air pipe (13).
5. The film drying equipment according to claim 4, characterized in that: A guide plate (221) is provided on the air outlet duct (22), and the guide plate (221) is located at the air inlet (26).
6. The film drying equipment according to claim 1, characterized in that: It also includes a waste discharge mechanism (4), which includes a second centrifugal fan (41), a waste discharge main pipe (42), a waste discharge horizontal pipe (43), and a waste suction box (44). The arched oven (21) is provided with a waste discharge interface (28), which is connected to the air inlet of the second centrifugal fan (41). One end of the waste discharge main pipe (42) is connected to the waste discharge interface (28), and the other end of the waste discharge main pipe (42) is connected to the middle of the waste discharge horizontal pipe (43). The two waste suction boxes (44) are respectively set at both ends of the waste discharge horizontal pipe (43).
7. The film drying equipment according to claim 6, characterized in that: The waste suction box (44) includes a waste suction box body (441) and a waste suction plate (442). The waste suction box body (441) is connected to the waste discharge horizontal pipe (43), and the waste suction plate (442) is connected to the waste suction box body (441). The waste suction plate (442) is set on the outer wall of the arch of the arched oven (21), and a number of waste suction holes are opened on the waste suction plate (442).