Drying device for release film production

By introducing a leveling device and a fan design into the drying equipment for release film production, the problem of film edge curling in traditional equipment has been solved, resulting in improved product quality and increased production efficiency.

CN223896528UActive Publication Date: 2026-02-10XIYOU NEW MATERIALS (HUAIAN) CO LTD
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Patent Information

Application Number
CN202520509660.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-10
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

Traditional drying equipment used in release film production is prone to causing the film to curl at both ends during high-temperature drying, which affects product quality and production efficiency, and is difficult to position accurately, increasing the scrap rate.

Method used

Design a drying device including a leveling device to flatten the release film after drying. Use extrusion rollers to eliminate uneven stress in the film surface. Combine adjustable feet and hinge design to ensure the device is level and retains heat. Use a fan to blow hot air evenly.

Benefits of technology

It effectively eliminates the phenomenon of film edge curling, improves the flatness and positioning accuracy of products, reduces the scrap rate, and ensures stable operation of the production line and energy utilization efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of drying, in particular to a drying device for release film production, which comprises a drying component, the drying component comprises a drying lower part, the drying lower part comprises a lower bin, grooves for placing a leveling component are respectively arranged on two sides of the lower bin, the leveling component comprises a support, and the support is fixed on the upper surface of the groove on one side of the lower bin. The middle of the support is fixedly connected with a sliding rod, the sliding rod is slidably connected with an extrusion wheel, the surfaces of the two ends of the extrusion wheel are fixedly connected with springs, the springs are sleeved with the sliding rod, the lower portion of the support is rotationally connected with a driving wheel used for driving a release film to advance, and one end of the driving wheel is fixedly connected with a motor which is fixedly connected with the surface of one side of the lower bin. According to the drying device for release film production, the flattening device can conduct flattening operation on release films in time, in the process, uneven internal stress, caused by a traditional drying mode, of film faces is effectively eliminated, and the phenomenon that the two ends are curled due to stress concentration is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to drying technical field, concretely relates to a drying device for release film production. BACKGROUND

[0002] Release film is a kind of functional film with low adhesion on surface, is widely used in adhesive product, electronic material, medical packaging and other fields.The core function is to prevent adhesive layer and substrate from sticking, facilitate subsequent processing or stripping when using.

[0003] In the production process of release film, drying is a crucial link, its purpose is to make release agent coated on the surface of release film to be quickly and fully cured, ensure that release film has stable and reliable release performance.However, the traditional drying device for release film production is particularly prominent in the phenomenon that the both ends of release film are prone to edge curling when high-temperature drying, seriously restricts the production quality and efficiency of release film, and the edge curling problem not only affects the appearance of release film, but also causes problems such as air bubble and wrinkle when release film is bonded with other materials, seriously reduces product quality.In the subsequent processing process, the edge-curling release film is difficult to accurately position, reduces production efficiency and increases scrap rate.

[0004] Therefore, it is urgent to provide a drying device for release film production to improve the deficiencies of the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a drying device for release film production, by increasing the flattening device, after the surface drying of release film is completed, the surface temperature is still at a relatively high temperature, so that the material is relatively soft, and the surface is flattened, to solve the problem of edge curling of the traditional drying machine during drying.

[0006] To achieve the above object, the utility model provides a drying device for release film production, which comprises a drying assembly, the drying assembly comprises a drying lower part, the drying lower part comprises a lower bin, the lower bin is respectively provided with a groove for placing a flattening assembly on both sides, the flattening assembly comprises a support, the support is fixed on the upper surface of the groove on one side of the lower bin, the other side groove of the lower bin is fixedly connected with an inlet wheel, the middle part of the support is fixedly connected with a sliding rod, the sliding rod is slidingly connected with a squeezing wheel, the both end surfaces of the squeezing wheel are fixedly connected with springs, the springs are sleeved in the sliding rod, and the springs are used to push the squeezing wheel to press down, a driving wheel for driving the release film to advance is rotatably connected below the support, one end of the driving wheel is fixedly connected with a motor, the motor is fixedly connected with the surface on one side of the lower bin, and the motor is used to drive the driving wheel to rotate.

[0007] As a further improvement of the technical solution, the lower surface of the lower bin is fixedly connected with a supporting leg, and the lower end of the supporting leg is rotatably connected with an adjustable supporting foot for adjusting the height of the device.

[0008] As a further improvement of the technical solution, the inside of the lower bin is fixedly connected with a heating pipe one, and the heating pipe one is fixedly connected with both ends of the lower bin.

[0009] As a further improvement of the technical solution, the rear surface of the lower bin is fixedly connected with a hinge, and the other end of the hinge is fixedly connected with a drying upper part, and the drying lower part is rotatably connected with the drying lower part through the hinge.

[0010] As a further improvement of the technical solution, the drying lower part comprises an upper cover, the front surface of the upper cover is fixedly connected with a handle, the handle facilitates opening and closing the upper cover, and the upper cover is closed with the lower bin to reduce the heat loss inside.

[0011] As a further improvement of the technical solution, the upper surface of the upper cover is provided with two through holes, and two fans are fixedly connected at the two through holes respectively, a heating pipe two is fixedly connected inside the upper cover, and the fan blades rotate to uniformly blow the hot air around the heating pipe two to the surface of the release film.

[0012] As a further improvement of the technical solution, the upper surface of the fan is fixedly connected with a protective net for reducing dust entering.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] The drying device for the release film production can timely perform the flattening operation, which effectively eliminates the uneven internal stress of the film surface caused by the traditional drying method, avoids the two-end edge curling phenomenon caused by stress concentration, effectively solves the release film edge curling problem, accurately positions in subsequent processing, reduces the downtime adjustment time caused by inaccurate positioning, and simultaneously, the low scrap rate means that the production line can continuously and stably operate without frequent production interruption for rework processing due to a large amount of scrap. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the embodiment;

[0016] Figure 2 It is a drying assembly structure schematic view of the embodiment;

[0017] Figure 3 It is a drying lower part structure schematic view of the embodiment;

[0018] Figure 4 It is a drying upper part structure schematic view of the embodiment;

[0019] Figure 5 Structure diagram of leveling assembly for example.

[0020] The meanings of various reference numerals in the drawings are as follows:

[0021] 1, drying assembly; 10, leg; 11, adjustable foot; 12, drying lower part; 120, lower bin; 121, heating pipe one; 122, hinge; 123, groove; 124, feeding wheel; 13, drying upper part; 130, upper cover; 131, handle; 132, through hole; 133, heating pipe two; 134, fan; 135, protective net;

[0022] 2, leveling assembly; 200, bracket; 201, sliding rod; 202, extrusion wheel; 203, spring; 204, motor; 205, drive wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-5 The present embodiment provides a drying device for release film production, which comprises a drying assembly 1. The drying assembly 1 comprises a drying lower part 12. The drying lower part 12 comprises a lower bin 120. The lower bin 120 is provided with grooves 123 on both sides for placing a leveling assembly 2. The leveling assembly 2 comprises a bracket 200. The bracket 200 is fixed to the upper surface of the groove 123 on one side of the lower bin 120. The groove 123 on the other side of the lower bin 120 is fixedly connected with a feeding wheel 124. The middle part of the bracket 200 is fixedly connected with a sliding rod 201. The sliding rod 201 is slidingly connected with an extrusion wheel 202. The surfaces of both ends of the extrusion wheel 202 are fixedly connected with springs 203. The springs 203 are sleeved on the sliding rod 201. The springs 203 are used to push the extrusion wheel 202 downward. A drive wheel 205 for driving the release film to advance is rotatably connected below the bracket 200. One end of the drive wheel 205 is fixedly connected with a motor 204. The motor 204 is fixedly connected with the surface on one side of the lower bin 120. The motor 204 is used to drive the drive wheel 205 to rotate.

[0025] The above working principle: when the release film enters the drying process, it first passes through the feeding wheel 124, and the feeding wheel 124 sends the release film smoothly into the inside of the drying device. The bracket 200 fixed on the upper surface of the groove 123 on one side of the lower bin 120 cooperates with the feeding wheel 124 fixedly connected with the groove 123 on the other side to position the release film. At this time, the motor 204 is started to drive the driving wheel 205 fixedly connected therewith to rotate, and the driving wheel 205 drives the release film to advance in the drying device. In the process of the release film advancing, the extrusion wheel 202 installed on the slide rod 201 in the middle of the bracket 200 plays a key role. The spring 203 fixed on both ends of the surface of the extrusion wheel 202 and sleeved in the slide rod 201 continuously pushes the extrusion wheel 202 downward to flatten the surface of the passing release film. Because the surface temperature of the dried release film is high and the material is soft, the extrusion wheel 202 can effectively eliminate the uneven internal stress of the film surface and avoid edge curling due to stress concentration, finally realizing the flatness optimization of the release film in the drying process and guaranteeing the product quality.

[0026] In order to adapt to different bottom surfaces and adjust the height of the adjustable leg 11 so that the device is horizontal, in the embodiment, the lower bin 120 is fixedly connected with the supporting leg 10, the lower end of the supporting leg 10 is rotatably connected with the adjustable leg 11 for adjusting the height of the device, and the inside of the lower bin 120 is fixedly connected with the heating pipe one 121, which is fixedly connected with the lower bin 120 at both ends. During the installation and use of the drying device for release film production, because the flatness of the placed bottom surface may be different, in order to ensure that the device can be stably and horizontally placed, the supporting leg 10 fixedly connected with the lower surface of the lower bin 120 plays a supporting role. The adjustable leg 11 rotatably connected with the lower end of the supporting leg 10 can adjust its height by rotating. The operator can manually rotate the adjustable leg 11, and at the same time, the heating pipe one 121 fixedly connected with the inside of the lower bin 120 is fixed at both ends with the lower bin 120. After the horizontal adjustment of the device is completed, it can stably heat the inside space of the lower bin 120 to provide basic heat for the drying of the release film.

[0027] To allow the release film tip to be placed into the drying device before drying and to reduce heat loss, in this embodiment, a hinge 122 is fixedly connected to the rear of the lower compartment 120. The other end of the hinge 122 is fixedly connected to the upper drying section 13. The lower drying section 12 is rotatably connected to the upper drying section 12 via the hinge 122. The lower drying section 12 includes an upper cover 130, with a handle 131 fixedly connected to the front of the upper cover 130. The handle 131 facilitates opening and closing the upper cover 130. The upper cover 130 and the lower compartment 120 are closed to reduce internal heat loss. Before placing the release film into the drying device, the drying device needs to be opened to allow the release film tip to be placed inside. The lower compartment 120 is rotatably connected to the upper drying section 13 via the hinge 122. The operator can grasp the handle 131 fixedly connected to the front of the upper cover 130 and pull the handle 131 to rotate the upper cover 130 upwards around the hinge 122, thus opening the drying device. After placing the front end of the release film into the device, release the handle 131. The upper cover 130 closes with the lower chamber 120 under gravity or by gentle manual pressing. This design, connected by the hinge 122 and operated by the handle 131, facilitates the loading process of the release film. During the drying process, the tight closure of the upper cover 130 and the lower chamber 120 effectively reduces heat loss inside the device. When heating tube 121 and heating tube 133 (mentioned later) generate heat, the closed upper cover 130 and lower chamber 120 form a relatively enclosed space, reducing convection between the internal hot air and the external cold air. This allows heat to be concentrated inside the device for drying the release film, improving energy efficiency and ensuring the stability of the drying effect.

[0028] To ensure even heat distribution to the release film surface, in this embodiment, the upper cover 130 has two through holes 132 on its upper surface. A fan 134 is fixedly connected to each of the two through holes 132. A second heating tube 133 is fixedly connected inside the upper cover 130. The rotating blades of the fan 134 evenly blow the hot air around the second heating tube 133 onto the release film surface. A protective mesh 135 is fixedly connected to the upper surface of the fan 134 to reduce dust ingress. When the second heating tube 133 generates heat, the surrounding air is heated, and the fan 134 blades begin to rotate. The rotation of the fan 134 generates airflow, which carries and accelerates the hot air around the second heating tube 133, evenly blowing it onto the release film surface. Under the action of the fan 134, the hot air can cover the entire surface area of ​​the release film, preventing localized overheating or undercooling. The protective net 135 fixedly connected to the upper surface of the fan 134 can effectively reduce the entry of external dust and other impurities into the device with the airflow drawn in by the fan 134, prevent dust from adhering to the surface of the release film or the heating tube 133, ensure the cleanliness of the hot air, and thus ensure that the release film is dried in a clean hot environment, thereby improving product quality.

[0029] In this embodiment, a drying device for release film production is used in practice. Firstly, during the installation and use of the drying device, due to potential differences in the flatness of the base surface, to ensure the device can be placed stably and horizontally, adjustable support feet 11 are rotatably connected to the lower ends of the support legs 10, allowing for height adjustment via rotation. Simultaneously, a heating tube 121 is fixedly connected inside the lower chamber 120, with both ends fixed to the lower chamber 120. After the device is leveled, it can stably heat the internal space of the lower chamber 120, providing basic heat for drying the release film.

[0030] When the release film enters the drying process, after passing through the feed roller 124, the drying device needs to be opened before placing the release film into it for drying. The operator can open the drying device by holding the handle 131 fixedly connected to the front of the upper cover 130 and pulling it to rotate the upper cover 130 upwards around the hinge 122. After placing the release film into the device, the operator releases the handle 131, and the upper cover 130 closes with the lower chamber 120 under gravity or by gentle manual pressing. During the drying process, the tight closure of the upper cover 130 and lower chamber 120 effectively reduces heat loss inside the device. A protective mesh 135 is fixedly connected to the upper surface of the fan 134 to reduce dust ingress. When the heating element 133 generates heat, the surrounding air is heated, and the fan blades of the fan 134 begin to rotate. The rotation of the fan 134 generates airflow, which carries and accelerates the hot air around the heating element 133, blowing it evenly onto the surface of the release film. Under the action of fan 134, hot air can cover the entire surface area of ​​the release film, preventing localized overheating or undercooling. The protective mesh 135 fixedly connected to the upper surface of fan 134 effectively reduces the entry of external dust and other impurities into the device along with the airflow drawn in by fan 134, preventing dust from adhering to the surface of the release film or the heating tube 133, ensuring the cleanliness of the hot air, and thus ensuring that the release film is dried in a clean hot environment, improving product quality.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for producing release film, comprising a drying component (1), characterized in that: The drying assembly (1) includes a lower drying section (12), which includes a lower chamber (120). The lower chamber (120) has grooves (123) on both sides for placing a leveling assembly (2). The leveling assembly (2) includes a support (200). The support (200) is fixed to the upper surface of the groove (123) on one side of the lower chamber (120). A feed wheel (124) is fixedly connected to the groove (123) on the other side of the lower chamber (120). A slide rod (201) is fixedly connected to the middle portion of the support (200). A slidable extrusion wheel (202) is provided, and springs (203) are fixedly connected to both ends of the extrusion wheel (202). The springs (203) are sleeved in the slide rod (201) and are used to push the extrusion wheel (202) down. A drive wheel (205) for driving the release film forward is rotatably connected below the bracket (200). A motor (204) is fixedly connected to one end of the drive wheel (205). The motor (204) is fixedly connected to one side surface of the lower chamber (120) and is used to drive the drive wheel (205) to rotate.

2. The drying apparatus for release film production according to claim 1, characterized in that: The lower surface of the lower compartment (120) is fixedly connected to a support leg (10), and the lower end of the support leg (10) is rotatably connected to an adjustable foot (11) for adjusting the height of the device.

3. The drying apparatus for release film production according to claim 1, characterized in that: A heating tube (121) is fixedly connected inside the lower compartment (120), and the heating tube (121) is fixedly connected to both ends of the lower compartment (120).

4. The drying apparatus for release film production according to claim 1, characterized in that: A hinge (122) is fixedly connected to the rear of the lower compartment (120), and the other end of the hinge (122) is fixedly connected to the upper drying part (13). The lower drying part (12) is rotatably connected to the lower drying part (12) through the hinge (122).

5. The drying apparatus for release film production according to claim 4, characterized in that: The lower drying section (12) includes an upper cover (130), on which a handle (131) is fixedly connected. The handle (131) facilitates opening and closing of the upper cover (130). The upper cover (130) is closed with the lower chamber (120) to reduce internal heat loss.

6. The drying apparatus for release film production according to claim 5, characterized in that: The upper surface of the cover (130) is provided with two through holes (132), and a fan (134) is fixedly connected to each of the two through holes (132). A second heating tube (133) is fixedly connected inside the cover (130). The fan blades of the fan (134) rotate to blow the hot air around the second heating tube (133) evenly onto the surface of the release film.

7. The drying apparatus for release film production according to claim 6, characterized in that: The upper surface of the fan (134) is fixedly connected with a protective mesh (135) to reduce dust entry.