Constant-temperature curing device for thin film

By setting up a partitioned chamber and an internal circulation system in the film curing chamber, combined with a tension adjustment mechanism, the problems of low heat utilization and film relaxation during film curing are solved, achieving efficient and stable film curing results.

CN223644053UActive Publication Date: 2025-12-09DONGGUAN LINGYANG PACKAGING TECH CO LTD
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Patent Information

Application Number
CN202423282852.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-09
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing film curing boxes have low heat utilization rates and the film is prone to loosening, leading to damage when the film comes into contact with the heating element.

Method used

The internal cavity of the chamber is divided into left and right chambers. An internal circulation is formed by blowing and ducting air components. The tension of the membrane is adjusted by an electric telescopic rod and a pressure sensor. Hot air circulation and uniform heating of the membrane are achieved through a blower and a heating element.

Benefits of technology

It improves thermal energy utilization efficiency, avoids film relaxation, ensures the stability and uniformity of the film curing process, and saves energy.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a film constant-temperature curing device which comprises a main body mechanism and an adjusting mechanism, the main body mechanism comprises a box body, a first guide roller mounted at the bottom end of the inner wall of the box body, a plurality of second guide rollers mounted at the bottom end of the inner wall of the box body, a third guide roller mounted at the top end of the box body, a blowing part fixed at the upper end in the box body, an air entraining part fixed at the lower end in the box body, and a curing assembly mounted between the blowing part and the air entraining part; the air blowing part is installed at the top end of the box body and communicates with the air blowing part, the connecting pipe is used for connecting the air blowing part and an inner cavity of the box body, the box body can form a closed environment and is used for curing a film, a feeding opening is formed in the bottom end of one side of the box body, and the position of the feeding opening corresponds to the position of the first guide roller, so that the film is conveniently fed into the inner cavity of the box body; the film constant-temperature curing device has the advantages of being good in film curing effect and high in practicability.
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Description

Technical Field

[0001] This utility model relates to the field of film curing technology, specifically to a film constant temperature curing device. Background Technology

[0002] Curing, also known as curing, is the process of placing the pre-laminated film into a film curing chamber, allowing the main component and curing agent of the polyurethane adhesive to react and crosslink, and interact with the surface of the substrate being laminated.

[0003] The existing film curing chambers have the following drawbacks during use: hot air inside the chamber is directly discharged into the external environment during curing, resulting in low heat utilization. At the same time, the existing film is prone to loosening during curing, causing the film to come into contact with the heating element and damage the film. Therefore, there is room for improvement. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: a film constant temperature curing device, comprising: a main body and an adjustment mechanism, wherein the main body includes a box, a first guide roller installed at the bottom of the inner wall of the box, a plurality of second guide rollers installed at the bottom of the inner wall of the box, a third guide roller installed at the top of the box, an air blowing component fixed at the upper end of the box, an air drawing component fixed at the lower end of the box, a curing component installed between the air blowing component and the air drawing component, a blower installed at the top of the box and communicating with the air blowing component, and a connecting pipe connecting the blower and the inner cavity of the box.

[0006] The blowing component, curing component, and air-guiding component divide the inner cavity of the chamber into a left chamber and a right chamber. The bottom of the left chamber has a feed inlet, and the top of the right chamber has a discharge outlet. During operation, the film passes sequentially through the feed inlet, the first guide roller, the adjusting mechanism, the second guide roller, the discharge outlet, and the third guide roller.

[0007] In a preferred embodiment, the present invention can be further configured such that the air blowing component includes a tube fixed to the inner wall of the box and a rectangular air blowing pipe installed on one side of the tube and communicating with the inner cavity of the tube.

[0008] In a preferred embodiment, the present invention can be further configured such that: the air intake component includes an air intake pipe fixed on the inner wall of the box and an exhaust pipe installed on one side of the air intake pipe and connected to the air intake pipe, wherein the exhaust pipe is located in the left chamber of the box.

[0009] In a preferred embodiment, the present invention can be further configured such that the blower includes a rectangular shell installed at the top of the housing and extending into the housing, a plurality of high-speed fans installed on the inner wall of the rectangular shell, and a plurality of round pipes connecting the rectangular shell and the blower.

[0010] In a preferred embodiment, the present invention can be further configured such that one end of the connecting pipe is connected to the inner cavity of the rectangular shell, and the other end is connected to the left side chamber of the box.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the adjustment mechanism is located in the left chamber of the box body, including electric telescopic rods fixed on both sides to the inner wall of the box body, a U-shaped frame fixed to the bottom end of the electric telescopic rods, two sliders movably arranged on the U-shaped frame, a pressure sensor installed on the inner side of the U-shaped frame and close to the sliders, and a fourth guide roller rotatably installed between the relative sliders.

[0012] In a preferred embodiment, the present invention can be further configured such that: a groove is formed on the opposite inner side of the U-shaped frame, the slider is fitted into the groove, the pressure sensor is fixed on the inner bottom wall of the groove, and the bottom end of the slider is close to the top end of the pressure sensor.

[0013] In a preferred embodiment, the present invention can be further configured such that: a feed inlet is opened at the bottom of one side of the box, and a discharge outlet is opened at the top of the box.

[0014] In a preferred embodiment, the present invention can be further configured such that the curing component includes a base plate fixed between the blowing component and the induced air component, and a plurality of heating tubes mounted on the base plate.

[0015] In a preferred embodiment, the present invention may be further configured to include a gas replenishment system, the gas replenishment system including multiple gas replenishment ports located on the back of the housing, the multiple gas replenishment ports being evenly distributed at the four corners of the back of the housing, and an exhaust pipe for discharging gas to the outside being provided in the middle of the back of the housing, the exhaust pipe being provided with a return pipe, and the return pipe being provided with a return valve.

[0016] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0017] 1. In this utility model, a first guide roller, a second guide roller, and a third guide roller are respectively installed on the inner wall and outer surface of the box. An air blowing component and an air drawing component are symmetrically installed on the inner wall of the box, and the curing component is installed between the two, thereby dividing the inner cavity of the box into two chambers, left and right. An electric telescopic rod is installed on the inner wall of the left chamber of the box, and a U-shaped frame is installed at the bottom of the electric telescopic rod. A slider is movably set inside the U-shaped frame, and a fourth guide roller is installed between the sliders. A pressure sensor is installed at the bottom of the slider. With the above arrangement, the film passes around the first guide roller, the fourth guide roller, and the second guide roller respectively during curing, and is finally delivered through the fourth guide roller. During the curing process, the pressure sensor can monitor the tension of the film acting on the fourth guide roller in real time. When the film becomes loose, the tension acting on the fourth guide roller decreases. At this time, the electric telescopic rod drives the U-shaped frame to move upward, that is, drives the fourth guide roller to move upward, and tightens the film. This can effectively avoid the loosening phenomenon that occurs during the curing process of the film and ensure the stability of the film curing process.

[0018] 2. In this utility model, a blower is installed at the top of the chamber. One end of the blower is connected to the air blowing component, and the other end is connected to the left chamber of the chamber through a connecting pipe. With the above arrangement, during film curing, the blower draws air out of the left chamber of the chamber through the connecting pipe and accelerates it into the air blowing component. The high-speed airflow is blown out through the air blowing component, forming a top-down airflow between the curing component and the film, increasing the air flow between the two and ensuring uniform heating of the film. Then, the air intake component can introduce hot air into the left chamber of the chamber, raising the ambient temperature of the left chamber of the chamber. This can preheat the film before curing, improve the subsequent curing effect, effectively increase the heat utilization efficiency, save energy, and through the above arrangement, the air inside the chamber can form an internal circulation, preventing external dust from entering and adhering to the film, further improving the practical performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the air intake component of this utility model;

[0023] Figure 5 This is a schematic diagram of the adjustment mechanism and its exploded structure of the present invention.

[0024] Figure label:

[0025] 100. Main structure; 110. Box body; 111. Feed inlet; 112. Discharge outlet; 113. Side door; 114. Air inlet; 115. Exhaust pipe; 116. Return pipe; 120. First guide roller; 130. Second guide roller; 140. Third guide roller; 150. Air blowing component; 151. Pipe body; 152. Rectangular air blowing pipe; 160. Air intake component; 161. Air intake pipe; 162. Exhaust pipe; 170. Curing component; 171. Base plate; 172. Heating element; 180. Blower; 181. Rectangular shell; 182. High-speed fan; 183. Round pipe; 190. Connecting pipe;

[0026] 200. Adjustment mechanism; 210. Electric telescopic rod; 220. U-shaped frame; 221. Groove; 230. Slider; 240. Pressure sensor; 250. Fourth guide roller. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] Some embodiments of this utility model are described below with reference to the accompanying drawings.

[0029] Example 1:

[0030] Combination Figure 1-5 As shown, this embodiment provides a film constant temperature curing device, including: a main body 100 and an adjustment mechanism 200.

[0031] The main structure 100 includes a housing 110, a first guide roller 120 installed at the bottom of the inner wall of the housing 110, a plurality of second guide rollers 130 installed at the bottom of the inner wall of the housing 110, a third guide roller 140 installed at the top of the housing 110, an air blowing component 150 fixed at the upper end of the interior of the housing 110, an air drawing component 160 fixed at the lower end of the interior of the housing 110, a curing component 170 installed between the air blowing component 150 and the air drawing component 160, a blower component 180 installed at the top of the housing 110 and communicating with the air blowing component 150, and a connecting pipe 190 connecting the blower component 180 and the inner cavity of the housing 110.

[0032] The housing 110 forms a closed environment for curing the film. A feed inlet 111 is located at the bottom of one side of the housing 110, corresponding to the position of the first guide roller 120, facilitating the feeding of the film into the inner cavity of the housing 110. An outlet 112 is located at the top of the housing 110, corresponding to the position of the third guide roller 140, for discharging the cured film. An air replenishment system is also included, comprising multiple air inlets 114 evenly distributed at the four corners of the back of the housing 110. An exhaust pipe 115 for venting gas to the outside is also located in the center of the back of the housing 110, with a return pipe 116 and a return valve on the return pipe 116. By placing the air inlet 114 at the four corners of the rear and the exhaust pipe 115 in the center of the rear, the supplemented gas flows more evenly within the housing 110. By installing a return pipe 116 on the exhaust pipe 115, some hot air can be discharged from the housing 110 into the room when the indoor temperature is low, preventing direct heat loss and improving energy efficiency. To facilitate the introduction of the membrane into the housing 110 before equipment startup, a side door 113 is provided on one side of the housing 110.

[0033] The air blowing component 150, the curing component 170, and the air duct component 160 divide the inner cavity of the housing 110 into a left chamber and a right chamber. The left chamber is used to preheat the film, and the right chamber is used to cure the film.

[0034] The air blowing component 150 is used to blow high-speed airflow into the space between the curing device and the film, thereby accelerating the airflow between the two and ensuring that the film is heated evenly. The air blowing component 150 includes a tube 151 fixed on the inner wall of the housing 110 and a rectangular air blowing pipe 152 installed on one side of the tube 151 and communicating with the inner cavity of the tube 151. The rectangular air blowing pipe 152 is arranged vertically downward and is used to blow out high-speed airflow.

[0035] The air intake component 160 includes an air intake pipe 161 fixed to the inner wall of the housing 110 and an exhaust pipe 162 installed on one side of the air intake pipe 161 and connected to the air intake pipe 161. The exhaust pipe 162 is located in the left chamber inside the housing 110. Hot air in the right chamber inside the housing 110 can enter the left chamber inside the housing 110 through the air intake pipe 161 and the exhaust pipe 162, thereby increasing the ambient temperature in the left chamber inside the housing 110. This can preheat the film before film curing, improve the subsequent curing effect of the film, effectively increase the heat utilization efficiency, and save energy.

[0036] The curing assembly 170 is used to perform curing operations on the film, including a base plate 171 fixed between the air blowing member 150 and the air drawing member 160 and a plurality of heating tubes 172 mounted on the base plate 171. The base plate 171 is used to mount the heating tubes 172, and the heating tubes 172 are used to heat and cure the film.

[0037] The blower 180 is used to accelerate air into the blowing component 150. It includes a rectangular housing 181 installed at the top of the housing 110 and extending into the housing 110, multiple high-speed fans 182 installed on the inner wall of the rectangular housing 181, and multiple round pipes 183 connecting the rectangular housing 181 and the blowing component 150. The housing is used to install the high-speed fans 182. At the same time, one end of the connecting pipe 190 is connected to the inner cavity of the rectangular housing, and the other end is connected to the left side chamber inside the housing 110. When the high-speed fans 182 are started, they draw out the air from the left side chamber inside the housing 110 and send it into the blowing component 150 through the round pipes 183. After the air is blown out by the blowing component 150, it accelerates the air flow between the curing component 170 and the film, and then returns to the left side chamber inside the housing 110 through the air duct 160, so that the air inside the housing 110 forms an internal circulation, preventing external dust from entering the housing 110.

[0038] The adjustment mechanism 200 is located in the left chamber inside the housing 110, and includes an electric telescopic rod 210 fixed on both sides to the inner wall of the housing 110, a U-shaped frame 220 fixed at the bottom end of the electric telescopic rod 210, two sliders 230 movably arranged on the U-shaped frame 220, a pressure sensor 240 installed on the inner side of the U-shaped frame 220 and close to the sliders 230, and a fourth guide roller 250 rotatably installed between the relative sliders 230.

[0039] The electric telescopic rod 210 is used to install the U-shaped frame 220 and drive the U-shaped frame 220 to move up and down. The U-shaped frame 220 has grooves 221 on its opposite inner surfaces. A slider 230 is fitted into the groove 221. A pressure sensor 240 is fixed to the inner bottom wall of the groove 221, and the bottom end of the slider 230 is pressed against the top end of the pressure sensor 240. A fourth guide roller 250 is rotatably mounted between the opposing sliders 230. Through this arrangement, the film tension acting on the fourth guide roller 250 can be converted into a downward pulling force on the fourth guide roller 250. The greater the film tension, the greater the downward force of the fourth guide roller 250, which means the greater the pressure value of the slider 230 on the pressure sensor 240. Conversely, the same applies. This enables real-time monitoring of film tension. When the film relaxes during curing, the film tension decreases. The pressure sensor 240 detects the decrease in the downward force on the fourth guide roller 250 and activates the electric telescopic rod 210, which moves the U-shaped frame 220 upward, thus moving the fourth guide roller 250 upward to tension the film. This effectively prevents relaxation during film curing.

[0040] The working principle and usage process of this utility model are as follows: In use, the film is sequentially passed around the first guide roller 120, the fourth guide roller 250, and the second guide roller 130, then around the third guide roller 140 and delivered out of the housing 110. Afterwards, the heating element 172 is activated to perform the film curing process. During film curing, the pressure sensor 240 monitors the film tension acting on the fourth guide roller 250 in real time. When the film relaxes, the tension acting on the fourth guide roller 250 decreases. At this time, the electric telescopic rod 210 drives the U-shaped frame 220 upward, thereby moving the fourth guide roller. The 250° upward movement tensions the film, effectively preventing relaxation during the curing process. Simultaneously, the high-speed fan 182 starts, drawing air from the left-side chamber of the enclosure 110 and sending it into the tube 151 through the round tube 183. After entering the tube 151, the high-speed airflow is sprayed downward through the rectangular air blowing pipe 152, increasing airflow between the two and ensuring uniform heating of the film. The hot air is then returned to the left-side chamber of the enclosure 110 through the exhaust pipe 161 and the vent pipe 162, raising the ambient temperature of the left-side chamber of the enclosure 110 and preheating the film.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A thin film constant temperature curing device, comprising: The main body (100) and the adjustment mechanism (200) are characterized in that the main body (100) includes a box (110), a first guide roller (120) installed at the bottom of the inner wall of the box (110), a plurality of second guide rollers (130) installed at the bottom of the inner wall of the box (110), a third guide roller (140) installed at the top of the box (110), an air blowing component (150) fixed at the upper end of the inside of the box (110), an air drawing component (160) fixed at the lower end of the inside of the box (110), a curing component (170) installed between the air blowing component (150) and the air drawing component (160), a blower (180) installed at the top of the box (110) and communicating with the air blowing component (150), and a connecting pipe (190) connecting the blower (180) and the inner cavity of the box (110); The air blowing component (150), curing component (170), and air drawing component (160) divide the inner cavity of the box (110) into a left chamber and a right chamber. The bottom of the left chamber has a feed inlet (111), and the top of the right chamber has a discharge outlet (112). During operation, the film passes through the feed inlet (111), the first guide roller (120), the adjustment mechanism (200), the second guide roller (130), the discharge outlet (112), and the third guide roller (140) in sequence.

2. The film constant temperature curing device according to claim 1, characterized in that, The air blowing component (150) includes a tube (151) fixed on the inner wall of the housing (110) and a rectangular air blowing pipe (152) installed on one side of the tube (151) and communicating with the inner cavity of the tube (151).

3. The film constant temperature curing device according to claim 1, characterized in that, The air intake component (160) includes an air intake pipe (161) fixed on the inner wall of the housing (110) and an exhaust pipe (162) installed on one side of the air intake pipe (161) and connected to the air intake pipe (161). The exhaust pipe (162) is located in the left side chamber inside the housing (110).

4. The film constant temperature curing device according to claim 1, characterized in that, The blower (180) includes a rectangular housing (181) mounted on the top of the housing (110) and extending into the housing (110), a plurality of high-speed fans (182) mounted on the inner wall of the rectangular housing (181), and a plurality of round pipes (183) connecting the rectangular housing (181) and the blower (150).

5. A film constant temperature curing device according to claim 4, characterized in that, One end of the connecting pipe (190) is connected to the inner cavity of the rectangular shell, and the other end is connected to the left side cavity inside the box (110).

6. The thin film constant temperature curing device according to claim 1, characterized in that, The adjustment mechanism (200) is located in the left side chamber inside the housing (110) and includes an electric telescopic rod (210) fixed on both sides to the inner wall of the housing (110), a U-shaped frame (220) fixed at the bottom end of the electric telescopic rod (210), two sliders (230) movably arranged on the U-shaped frame (220), a pressure sensor (240) installed on the inner side of the U-shaped frame (220) and close to the slider (230), and a fourth guide roller (250) rotatably installed between the relative sliders (230).

7. A film constant temperature curing device according to claim 6, characterized in that, The U-shaped frame (220) has a groove (221) on its opposite inner side. The slider (230) is fitted into the groove (221). The pressure sensor (240) is fixed on the inner bottom wall of the groove (221), and the bottom end of the slider (230) is close to the top end of the pressure sensor (240).

8. The film constant temperature curing device according to claim 1, characterized in that, The curing assembly (170) includes a base plate (171) fixed between the air blowing component (150) and the air drawing component (160) and a plurality of heating tubes (172) mounted on the base plate (171).

9. A film constant temperature curing device according to claim 1, characterized in that, It also includes a gas replenishment system, which includes multiple gas replenishment ports (114) located on the back of the housing (110). The multiple gas replenishment ports (114) are evenly distributed at the four corners of the back of the housing (110). The middle part of the back of the housing (110) is also provided with an exhaust pipe (115) for discharging gas to the outside. The exhaust pipe (115) is provided with a return pipe (116), and the return pipe (116) is provided with a return valve.