Drying device for PET film production

By designing a PET film drying device for partition partitions, combined with components such as spray head, wipe ball and cleaning roller, multiple cleaning and wiping of the PET film is achieved, solving the problems of no dry wipe of the membrane and coating damage, and ensuring drying and cleaning of the membrane surface.

CN119857665AInactive Publication Date: 2025-04-22YANCHENG ZHENGZHI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202510203780.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-04-22
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the production process of PET film, the membrane embryo is wiped dry after a water bath, resulting in the surface of the subsequent production. The existing hot air drying method is prone to damage the special coating and cannot effectively clean up the dust.

Method used

A drying device for PET film production is designed. The drying box is divided into a dust cleaning chamber, a wiping chamber and a tailing chamber with a partition plate. The dust cleaning parts, a wiping parts and a blowing parts are respectively arranged. Through components such as spray head, a wiping ball and a cleaning roller, multiple dust cleaning and wiping are achieved to ensure that the film surface is dry and the treatment is cooled by room temperature air.

Benefits of technology

It effectively avoids coating damage caused by direct hot air blowing, ensures drying and cleaning of the film surface, avoids dust adsorption, and realizes effective cleaning of the PET film at a temperature of 60℃.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of PET film production, and discloses a PET film production drying device which comprises a drying box, two partition plates are fixedly installed in the drying box, the two partition plates divide the interior of the drying box into three cavities, and the three cavities are sequentially an ash removal cavity, a wiping cavity and an ending cavity from the PET film inlet end; a dust removing part is arranged in the dust removing cavity, a first wiping part and a second wiping part are arranged in the wiping cavity, the first wiping part is close to the entering end of the PET film, the PET film is firstly subjected to dust removing and then wiped in a sub-cavity mode, the PET film is wiped twice in different modes, the wiping effect is ensured, and then the PET film is subjected to blowing and cooling treatment, so that the dust removing effect is improved. The PET film can be effectively cleaned at the temperature of DEG C, hot air cannot be directly blown to the PET film in the whole drying process, and the phenomenon that a coating on the PET film is damaged due to the fact that the PET film is directly blown by the hot air can be effectively avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of PET film production, in particular to a drying device for PET film production. Background Art

[0002] PET film is a packaging film with relatively comprehensive performance. It has good transparency, gloss, good air tightness and fragrance retention. It is mainly used for high-end vacuum aluminum-plated products and laser anti-counterfeiting base films and other products. In the production process of PET film, the film embryo is usually processed in a water bath to wash away impurities or dust on it. After the water bath, it will be wiped dry with upper and lower cloths. During the wiping process, it is often not wiped dry, resulting in the surface of the film embryo still being wet in subsequent production. Therefore, the PET film needs to be dried. The most common drying method is to use a tunnel drying box for drying. During drying, hot air at a certain temperature is blown to the PET film to make the water evaporate quickly. Although this method is fast, some PET films will be provided with special coatings, which are easy to fall off or damaged at the drying temperature, and the wet PET film is easily adsorbed by dust in the air, and the hot air drying method is not conducive to cleaning up the dust. Summary of the invention

[0003] The object of the present invention is to provide a drying device for PET film production to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drying device for PET film production, comprising a drying box, wherein a partition plate is fixedly installed inside the drying box, and two partition plates are provided. The two partition plates divide the drying box into three chambers, starting from the end where the PET film enters, which are a cleaning chamber, a wiping chamber, and a finishing chamber, respectively. A cleaning component is provided in the cleaning chamber, a wiping component one and a wiping component two are provided in the wiping chamber, and the wiping component one is close to the end where the PET film enters. A blowing component is provided in the finishing chamber, a winding component is provided on the outside of the drying box, and a heat blower is provided on the top of the drying box.

[0005] Furthermore, the cleaning component includes a booster air pump, an upper spray head, a lower spray head, a water pump, and a water tank. The booster air pump is fixedly installed on the top of the drying box, the air inlet end of the booster air pump is connected to the air outlet end of the heat blower, and the air outlet end of the booster air pump is connected to an air inlet pipe. The upper spray head and the lower spray head are fixedly installed on the inner wall of the cleaning chamber, the upper spray head is located above the PET film, and the lower spray head is located below the PET film. The air inlet ends of the upper spray head and the lower spray head are connected to an air inlet pipe through a pipeline. The water pump is fixedly installed on the back of the drying box, the water inlet end of the water pump extends into the water tank, the water outlet end of the water pump is connected to a water inlet pipe, the water inlet ends of the upper spray head and the lower spray head are connected to the water inlet pipe through a pipeline, and the water tank is filled with distilled water.

[0006] Furthermore, the wiping component 1 includes a booster air pump 2, a blower head 1, an alcohol sprayer, and a motor 1. The booster air pump 2 is fixedly installed on the top of the drying box. The air inlet end of the booster air pump 2 is connected to the air outlet end of the hot air heater. The air outlet end of the booster air pump 2 is connected to an air inlet pipe 2. The air inlet end of the blower head 1 is connected to the air inlet pipe 2 through a pipeline. The motor 1 and the alcohol sprayer are fixedly installed on the back of the drying box. The output end of the alcohol sprayer is connected to a liquid inlet pipe, which extends into the wiping cavity. The liquid inlet pipe is located at One end of the wiping chamber is connected to a spray head, a screw is fixedly installed at the output end of the motor, an inner threaded tube is provided on the outer wall threaded sleeve of the screw, a wiping ball is fixedly installed on the outer wall of the inner threaded tube, a connecting plate is provided on the end fixed sleeve of the inner threaded tube, a limiting slide rail is provided on the sliding sleeve of the outer wall of the connecting plate, and the limiting slide rail is fixedly installed on the inner wall of the wiping chamber, the blowing head 1 and the spray head are staggered with the PET film, and two groups of the blowing head 1, the spray head and the motor 1 are arranged, one group is located above the PET film and the other group is located below the PET film.

[0007] Furthermore, the wiping component 2 includes a booster air pump 3, a blower head 2, and a motor 2. The booster air pump 3 is fixedly installed on the top of the drying box, and the motor 2 is fixedly installed on the back of the drying box. The air inlet end of the booster air pump 3 is connected to the air outlet end driven by the heat blower, and the air outlet end of the booster air pump 3 is connected to an air inlet pipe 3. The air inlet end of the blower head 2 is connected to the air inlet pipe 3 through a pipeline. The blower head 2 is provided with two, one is located above the PET film and the other is located below the PET film. The output end of the motor 2 is fixedly installed with a rotating shaft, and the outer wall of the rotating shaft is fixedly installed with a cleaning roller. The motor 2 is provided with two, and the cleaning rollers corresponding to the two motors 2 are located above the PET film and below the PET film, respectively. The cleaning roller contacts the surface of the PET film, and the cleaning roller is located between the PET film and the blower head 2.

[0008] Furthermore, the blowing component includes a booster air pump four and a blowing head three. The booster air pump four is fixedly installed on the top of the drying box. The air inlet end of the booster air pump four is connected to an air filter head, and the air outlet end of the booster air pump four is connected to an air inlet pipe four. Two blowing heads three are provided, one is located above the PET film and the other is located below the PET film. The air inlet end of the blowing head three is connected to the air inlet pipe four through a pipe.

[0009] Furthermore, two groups of upper spray heads and lower spray heads are provided, and a water inlet is provided on the outer wall of the water tank.

[0010] Furthermore, the inner layer of the wiping ball is made of a high-temperature resistant plastic sphere, and the outer layer is wrapped with soft cloth. The length of the wiping ball is consistent with the length of the hair dryer head and the spray head.

[0011] Furthermore, the top of the drying box is connected to an exhaust pipe, and three exhaust pipes are provided, and are distributed and connected to the dust cleaning chamber, the wiping chamber, and the finishing chamber.

[0012] Furthermore, a filter screen is installed at the air inlet end of the hot air heater, a heater is fixedly installed on the outer wall of the hot air heater, a heating wire is fixedly connected to the heating end of the heater, and the heating wire is located inside the hot air heater.

[0013] Furthermore, two winding components are provided and are respectively located on the left and right sides of the drying box, wherein the winding component on the left is used to release the PET film, and the winding component on the right is used to roll up the PET film, the winding component includes a bottom plate, a cylinder is fixedly installed on the top of the bottom plate, a U-shaped seat is fixedly installed on the extended end of the cylinder, a motor three is fixedly installed on the outer wall of the U-shaped seat, and the output end of the motor three is connected to the winding roller through a connector.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Use the chamber method to clean the PET film first, then wipe it, wipe it twice in different ways to ensure the wiping effect, and then blow air to cool the PET film. The PET film can be effectively cleaned at a temperature of ℃. During the entire drying process, the hot air will not blow directly to the PET film, which can effectively avoid the damage to the coating on the PET film caused by the hot air blowing directly to the PET film; 2. Use the upper spray head and the lower spray head to spray water from the upper and lower directions to clean the surface of the PET film. The hot air and distilled water are mixed in the upper spray head and the lower spray head, so that the upper spray head and the lower spray head spray fast-flowing water mist, which can effectively wash away the dust from the PET film; 3. When the wiping ball passes through the PET film, the PET film is wiped. When the PET film is aligned with the spray head, the spray head sprays alcohol to the wiping ball, and the alcohol is used to perform a secondary cleaning on the PET film to remove oil stains and other components that cannot be washed by water mist. When the wiping ball moves to a place of the blower head, the hot air blown out by the blower head can dry the alcohol and water mist absorbed by the wiping ball, so that when the wiping ball contacts the PET film again, the water mist and alcohol on the PET film are completely cleaned; 4. The second motor drives the shaft to rotate, and then drives the cleaning roller to rotate. The cleaning roller rotates to wipe the surface of the PET film for the second time to ensure that all the water mist and alcohol are wiped off. At the same time, the hot air blown out by the second blower head blows to the cleaning roller to dry the cleaning roller, ensuring that the cleaning roller can always remain dry, and then fully wipe off the water mist and alcohol on the PET film; 5. The outside air is pumped into the air inlet pipe four through the booster air pump four. After the air enters the booster air pump four, it passes through the air filter head to filter out the dust. The air enters the air inlet pipe four into the air blowing head three, and then blows toward the PET film. The PET film is cooled by the air at room temperature to prevent the PET film from being burned by the workers due to the high temperature after it comes out of the drying box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the structure of the back view; Figure 3 It is a structural schematic diagram of a front cross-sectional view of a drying box of the present invention; Figure 4 It is a structural schematic diagram of the dust cleaning component of the present invention; Figure 5 It is a schematic diagram of the structure of the upper spray head and the lower spray head of the present invention; Figure 6 It is a structural schematic diagram of the wiping component 1 of the present invention; Figure 7 It is a structural schematic diagram of the wiping component 2 of the present invention; Figure 8 It is a structural schematic diagram of the blowing component of the present invention; Fig. 9 It is a schematic structural diagram of a top cross-sectional view of the heater of the present invention; Fig.10 It is a structural schematic diagram of the winding component of the present invention.

[0016] In the figure: 1. Drying box; 2. Partition plate; 3. Cleaning chamber; 4. Wiping chamber; 5. Finishing chamber; 6. Cleaning parts; 601. Booster air pump 1; 602. Upper spray head; 603. Lower spray head; 604. Inlet pipe 1; 605. Water pump; 606. Water tank; 607. Inlet pipe; 7. Wiping part 1; 701. Booster air pump 2; 702. Inlet pipe 2; 703. Blowing head 1; 704. Alcohol sprayer; 705. Liquid inlet pipe; 706. Spray head; 707. Wiping ball; 708. Internal threaded pipe; 709. Screw; 7010. Motor 1; 7011. Connecting plate; 7012. Limiting slide rail; 8, wiping component two; 801, booster pump three; 802, air intake pipe three; 803, blower head two; 804, motor two; 805, rotating shaft; 806, cleaning roller; 9, blowing component; 901, booster pump four; 902, air filter head; 903, air intake pipe four; 904, blower head three; 10, winding component; 1001, bottom plate; 1002, cylinder; 1003, U-shaped seat; 1004, motor three; 1005, winding roller; 11, air heater; 1101, filter screen; 1102, heater; 1103, heating wire; 12, exhaust pipe; 13, PET film. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Embodiment 1 See also Figure 1-Figure 8 The present invention provides a technical solution: a drying device for PET film production, comprising a drying box 1, wherein a partition plate 2 is fixedly installed inside the drying box 1, wherein two partition plates 2 are provided, and the two partition plates 2 divide the drying box 1 into three chambers, starting from the end where the PET film 13 enters, in order, there are a dust cleaning chamber 3, a wiping chamber 4, and a finishing chamber 5, wherein a dust cleaning component 6 is provided in the dust cleaning chamber 3, a wiping component 1 7 and a wiping component 2 8 are provided in the wiping chamber 4, and the wiping component 1 7 is close to the end where the PET film 13 enters, and an air blowing component 9 is provided in the finishing chamber 5, and a winding component 10 is provided outside the drying box 1, and a hot air blower 11 is provided on the top of the drying box 1, and the PET film 13 is firstly dusted and then wiped by means of chamber division, and wiped twice by different means to ensure the wiping effect, and then the PET film 13 is subjected to air blowing and cooling treatment, and the PET film 13 can be effectively cleaned at a temperature of 60°C; The dust cleaning component 6 includes a booster air pump 601, an upper spray head 602, a lower spray head 603, a water pump 605, and a water tank 606. The booster air pump 601 is fixedly installed on the top of the drying box 1, and the air inlet end of the booster air pump 601 is connected to the air outlet end of the hot air device 11, and the air outlet end of the booster air pump 601 is connected to an air inlet pipe 604. The upper spray head 602 and the lower spray head 603 are fixedly installed on the inner wall of the dust cleaning chamber 3. The upper spray head 602 is located above the PET film 13, and the lower spray head 603 is located below the PET film 13. The air inlet ends of the upper spray head 602 and the lower spray head 603 are connected to the air inlet pipe 604 through a pipeline. The pump 605 is fixedly installed on the back of the drying box 1, the water inlet end of the water pump 605 extends into the water tank 606, the water outlet end of the water pump 605 is connected with the water inlet pipe 607, the water inlet ends of the upper spray head 602 and the lower spray head 603 are connected with the water inlet pipe 607 through a pipeline, and the water tank 606 is filled with distilled water. The upper spray head 602 and the lower spray head 603 are used to spray water from the upper and lower directions to clean the surface of the PET film 13, and the hot air and distilled water are mixed in the upper spray head 602 and the lower spray head 603, so that the upper spray head 602 and the lower spray head 603 spray fast-flowing water mist, which can effectively wash away the dust from the PET film 13; The wiping component 17 includes a booster air pump 2 701, a blower head 1 703, an alcohol sprayer 704, and a motor 1 7010. The booster air pump 2 701 is fixedly installed on the top of the drying box 1. The air inlet end of the booster air pump 2 701 is connected to the air outlet end of the hot air heater 11. The air outlet end of the booster air pump 2 701 is connected to the air inlet pipe 2 702. The air inlet end of the blower head 1 703 is connected to the air inlet pipe 2 702 through a pipeline. The motor 1 7010 and the alcohol sprayer 704 are fixedly installed on the back of the drying box 1. The alcohol sprayer 7 The output end of the motor 704 is connected with a liquid inlet pipe 705, which extends into the wiping chamber 4. One end of the liquid inlet pipe 705 located in the wiping chamber 4 is connected with a spray head 706. A screw rod 709 is fixedly installed at the output end of the motor 7010. An inner threaded tube 708 is provided on the outer wall of the screw rod 709. A wiping ball 707 is fixedly installed on the outer wall of the inner threaded tube 708. A connecting plate 7011 is provided on the end of the inner threaded tube 708. A limiting slide rail 7012 is provided on the outer wall sliding sleeve of the connecting plate 7011. The limiting slide rail 7012 is fixedly installed on the inner wall of the wiping chamber 4, the blowing head 703, the spraying head 706 and the PET film 13 are staggered, the blowing head 703, the spraying head 706, and the motor 7010 are provided with two groups, one group is located above the PET film 13 and the other group is located below the PET film 13, and water mist is left on the PET film 13 after being cleaned. The motor 7010 rotates to drive the screw 709 to rotate, and then the internal threaded tube 708 drives the wiping ball 707 to move, and when the wiping ball 707 passes through the PET film 13, the PE The PET film 13 is wiped, and when the PET film 13 is aligned with the spray head 706, the spray head 706 sprays alcohol to the wiping ball 707, and the alcohol is used to perform a secondary cleaning on the PET film 13 to clean up oil stains and other components that cannot be washed by water mist. When the wiping ball 707 moves to the blowing head 703, the hot air blown by the blowing head 703 can dry the alcohol and water mist absorbed by the wiping ball 707, so that when the wiping ball 707 contacts the PET film 13 again, the water mist and alcohol on the PET film 13 are completely cleaned; The wiping component 2 8 comprises a booster air pump 3 801, a blower head 2 803, and a motor 2 804. The booster air pump 3 801 is fixedly mounted on the top of the drying box 1, and the motor 2 804 is fixedly mounted on the back of the drying box 1. The air inlet end of the booster air pump 3 801 is connected to the air outlet end driven by the hot air device 11, and the air outlet end of the booster air pump 3 801 is connected to the air inlet pipe 3 802, and the air inlet end of the blower head 2 803 is connected to the air inlet pipe 3 802 through a pipeline. The air inlet end of the blower head 2 803 is provided with two, one is located above the PET film 13 and the other is located below the PET film 13. The output end of the motor 2 804 is fixedly mounted with a rotating shaft 805, and the outer wall of the rotating shaft 805 is fixedly mounted with a cleaning roller 806. The motor 2 804 There are two cleaning rollers 806 corresponding to the two motors 804, one is located above the PET film 13 and the other is located below the PET film 13, the cleaning roller 806 is in contact with the surface of the PET film 13, and the cleaning roller 806 is located between the PET film 13 and the second air blowing head 803, the second motor 804 drives the rotating shaft 805 to rotate, and then drives the cleaning roller 806 to rotate, the cleaning roller 806 rotates to wipe the surface of the PET film 13 twice, ensuring that all the water mist and alcohol are wiped off, and at the same time, the hot air blown out by the second air blowing head 803 is blown to the cleaning roller 806 to dry the cleaning roller 806, ensuring that the cleaning roller 806 can be kept dry all the time, and then the water mist and alcohol on the PET film 13 are fully wiped off; The blowing component 9 includes a booster air pump 4 901 and a blower head 3 904. The booster air pump 4 901 is fixedly installed on the top of the drying box 1. The air inlet end of the booster air pump 4 901 is connected to an air filter head 902, and the air outlet end of the booster air pump 4 901 is connected to an air inlet pipe 4 903. Two blower heads 3 904 are provided, one is located above the PET film 13 and the other is located below the PET film 13. The air inlet end of the blower head 3 904 is connected to the air inlet pipe 4 903 through a pipeline. The outside air is pumped into the air inlet pipe 4 903 through the booster air pump 4 901. When the air enters the booster air pump 4 901, it passes through the air filter head 902 to filter out the dust therein. The air enters the blower head 3 904 from the air inlet pipe 4 903, and then blows toward the PET film 13. The PET film 13 is cooled by air at room temperature to prevent the PET film 13 from being burned by workers due to its high temperature after it goes out of the drying box 1. There are two groups of upper spray heads 602 and lower spray heads 603, and a water inlet is provided on the outer wall of the water tank 606. The two groups of upper spray heads 602 and lower spray heads 603 can ensure that the PET film 13 is fully cleaned. The water inlet is provided on the water tank 606 for replenishing distilled water into the water tank 606; The inner layer of the wiping ball 707 is made of a high temperature resistant plastic sphere, and the outer layer is wrapped with soft cloth. The length of the wiping ball 707 is consistent with the length of the blowing head 703 and the spraying head 706, so that the wiping ball 707 can be fully dried and sprayed with alcohol when it is aligned with the blowing head 703 and the spraying head 706; The top of the drying box 1 is connected with an exhaust pipe 12. Three exhaust pipes 12 are provided and are connected with the dust cleaning chamber 3, the wiping chamber 4 and the finishing chamber 5. The exhaust pipes 12 are provided to exhaust the excess air in each chamber.

[0019] Working principle: When in use, when the PET film 13 passes through the cleaning chamber 3, the booster air pump 601 and the water pump 605 are turned on at the same time, the booster air pump 601 pumps hot air into the upper spray head 602 and the lower spray head 603, and the water pump 605 pumps distilled water from the water tank 606 into the upper spray head 602 and the lower spray head 603. The hot air and distilled water are mixed into aerosol in the upper spray head 602 and the lower spray head 603, and then sprayed onto the PET film 13 to wash away the dust adsorbed on the PET film 13. After the PET film 13 enters the wiping chamber 4, the motor 7010 is turned on to drive the screw 70 9 rotates, thereby causing the internal threaded tube 708 to move along the screw rod 709, and the movement of the internal threaded tube 708 drives the wiping ball 707 to move. When the wiping ball 707 contacts the PET film 13, the water mist on the PET film 13 is wiped off. When the wiping ball 707 is aligned with the spray head 706, the spray head 706 sprays alcohol to the wiping ball 707, and the alcohol is used to perform a secondary cleaning on the PET film 13 to clean up components such as oil stains that cannot be washed by water mist. When the wiping ball 707 moves to the blowing head 703, the hot air blown out by the blowing head 703 can blow away the alcohol and water mist absorbed by the wiping ball 707. The second motor 804 is turned on to drive the rotating shaft 805 to rotate, and then the cleaning roller 806 is driven to rotate. The cleaning roller 806 rotates to wipe the surface of the PET film 13 for the second time to ensure that the water mist and alcohol are completely wiped off. At the same time, the hot air blown by the second blower 803 is blown to the cleaning roller 806 to dry the cleaning roller 806 to ensure that the cleaning roller 806 can be kept dry all the time. Then the water mist and alcohol on the PET film 13 are fully wiped off, and the PET film 13 enters the finishing cavity. 5, the booster air pump four 901 pumps the outside air into the air inlet pipe four 903, and the air passes through the air filter head 902 outside the booster air pump four 901 to filter out the dust therein, and the air enters the blowing head three 904 from the air inlet pipe four 903, and then blows toward the PET film 13, and uses the air at room temperature to cool the PET film 13, so as to avoid the PET film 13 from being burned by the workers due to the high temperature after it comes out of the drying box 1. During the whole drying process, the hot air will not be blown directly toward the PET film 13, which can effectively avoid the hot air directly blowing on the PET film 13 and causing damage to the coating on the PET film 13.

[0020] Embodiment 2 See also Figure 1-Figure 9 The present invention provides a technical solution: a drying device for PET film production, comprising a drying box 1, wherein a partition plate 2 is fixedly installed inside the drying box 1, wherein two partition plates 2 are provided, and the two partition plates 2 divide the drying box 1 into three chambers, starting from the end where the PET film 13 enters, in order, there are a dust cleaning chamber 3, a wiping chamber 4, and a finishing chamber 5, wherein a dust cleaning component 6 is provided in the dust cleaning chamber 3, a wiping component 1 7 and a wiping component 2 8 are provided in the wiping chamber 4, and the wiping component 1 7 is close to the end where the PET film 13 enters, and a blowing component 9 is provided in the finishing chamber 5, and a winding component 10 is provided outside the drying box 1, and a hot air blower 11 is provided on the top of the drying box 1, and the PET film 13 is firstly dusted and then wiped by means of chamber division, and wiped twice by different means to ensure the wiping effect, and then the PET film 13 is finished, and the PET film 13 can be effectively cleaned at a temperature of 60°C; A filter 1101 is installed at the air inlet end of the hot air heater 11, and a heater 1102 is fixedly installed on the outer wall of the hot air heater 11. The heating end of the heater 1102 is fixedly connected with a heating wire 1103. The heating wire 1103 is located in the hot air heater 11. The filter 1101 is provided to filter the air entering the hot air heater 11 to prevent dust from entering the hot air heater 11. The heating wire 1103 is heated by the heater 1102, and the heating wire 1103 heats the air entering the hot air heater 11, thereby generating hot air.

[0021] Working principle: When in use, after the PET film 13 enters the drying box 1, it passes through the cleaning chamber 3, the wiping chamber 4, and the finishing chamber 5 in sequence. After entering the cleaning chamber 3, the dust on it is cleaned by the cleaning component 6. After entering the wiping chamber 4, the moisture on it is wiped off by the wiping component 1 7 and the wiping component 2 8. In these two steps, the hot air generated by the hot air generator 11 is passed into the cleaning chamber 3 and the wiping chamber 4 to assist in cleaning and wiping moisture. When the PET film 13 passes through the finishing chamber 5, the blowing component 9 blows air to cool the PET film 13.

[0022] Embodiment 2 See also Figure 1-Figure 10The present invention provides a technical solution: a drying device for PET film production, comprising a drying box 1, wherein a partition plate 2 is fixedly installed inside the drying box 1, wherein two partition plates 2 are provided, and the two partition plates 2 divide the drying box 1 into three chambers, starting from the end where the PET film 13 enters, in order, there are a dust cleaning chamber 3, a wiping chamber 4, and a finishing chamber 5, wherein a dust cleaning component 6 is provided in the dust cleaning chamber 3, a wiping component 1 7 and a wiping component 2 8 are provided in the wiping chamber 4, and the wiping component 1 7 is close to the end where the PET film 13 enters, and a blowing component 9 is provided in the finishing chamber 5, and a winding component 10 is provided outside the drying box 1, and a hot air blower 11 is provided on the top of the drying box 1, and the PET film 13 is firstly dusted and then wiped by means of chamber division, and wiped twice by different means to ensure the wiping effect, and then the PET film 13 is finished, and the PET film 13 can be effectively cleaned at a temperature of 60°C; Two winding components 10 are provided, and are respectively located on the left and right sides of the drying box 1, wherein the winding component 10 on the left is used to release the PET film 13, and the winding component 10 on the right is used to roll up the PET film 13, and the winding component 10 includes a bottom plate 1001, a cylinder 1002 is fixedly installed on the top of the bottom plate 1001, a U-shaped seat 1003 is fixedly installed on the extended end of the cylinder 1002, a motor three 1004 is fixedly installed on the outer wall of the U-shaped seat 1003, and the output end of the motor three 1004 is connected to the winding roller through a connector. 1005, a bottom plate 1001 is provided for installing a cylinder 1002, and the height of the U-shaped seat 1003 is adjusted up and down by the cylinder 1002, and then the height of the PET film 13 wound on the winding roller 1005 is adjusted up and down, so that the PET film 13 is parallel to the drying box 1, thereby ensuring that the PET film 13 can contact the cleaning and wiping structures in the cleaning chamber 3, the wiping chamber 4, and the finishing chamber 5, and the winding roller 1005 is driven to rotate by the motor three 1004 to roll up or release the PET film 13.

[0023] Working principle: When in use, the undried PET film 13 is wound on the winding roller 1005 on the left, the PET film 13 is passed through the drying box 1, and then wrapped around the winding roller 1005 on the right, and then the two motors 3 1004 are turned on at the same time to drive the winding rollers 1005 to rotate, the winding roller 1005 on the left releases the PET film 13, and the winding roller 1005 on the right winds up the PET film 13, so that the PET film 13 enters the drying box 1, and then is processed by the cleaning component 6, the wiping component 1 7, the wiping component 2 8, and the blowing component 9.

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A drying device for PET film production, comprising a drying box (1), characterized in that: A partition plate (2) is fixedly installed inside the drying box (1), and two of the partition plates (2) are provided. The two partition plates (2) divide the drying box (1) into three chambers, starting from the end where the PET film (13) enters, which are a cleaning chamber (3), a wiping chamber (4), and a finishing chamber (5). The cleaning chamber (3) is provided with a cleaning component (6), the wiping chamber (4) is provided with a wiping component 1 (7) and a wiping component 2 (8), the wiping component 1 (7) is close to the end where the PET film (13) enters, the finishing chamber (5) is provided with a blowing component (9), the outside of the drying box (1) is provided with a winding component (10), and the top of the drying box (1) is provided with a hot air generator (11).

2. A drying device for PET film production according to claim 1, characterized in that: The dust cleaning component (6) comprises a booster air pump (601), an upper spray head (602), a lower spray head (603), a water pump (605), and a water tank (606). The booster air pump (601) is fixedly mounted on the top of the drying box (1). The air inlet end of the booster air pump (601) is connected to the air outlet end of the hot air heater (11). The air outlet end of the booster air pump (601) is connected to an air inlet pipe (604). The upper spray head (602) and the lower spray head (603) are fixedly mounted on the inner wall of the dust cleaning chamber (3). The upper spray head (602) is located at the PET film (13 ), the lower spray head (603) is located below the PET film (13), the air inlet ends of the upper spray head (602) and the lower spray head (603) are connected to the air inlet pipe (604) through a pipeline, the water pump (605) is fixedly installed on the back of the drying box (1), the water inlet end of the water pump (605) extends into the water tank (606), the water outlet end of the water pump (605) is connected to the water inlet pipe (607), the water inlet ends of the upper spray head (602) and the lower spray head (603) are connected to the water inlet pipe (607) through a pipeline, and the water tank (606) is filled with distilled water.

3. A drying device for PET film production according to claim 1, characterized in that: The wiping component (7) comprises a booster air pump (701), a blower head (703), an alcohol sprayer (704), and a motor (7010). The booster air pump (701) is fixedly mounted on the top of the drying box (1). The air inlet end of the booster air pump (701) is connected to the air outlet end of the hot air device (11). The air outlet end of the booster air pump (701) is connected to an air inlet pipe (702). The air inlet end of the blower head (703) is connected to the air inlet pipe (702) through a pipeline. The motor (7010) and the alcohol sprayer (704) are fixedly mounted on the back of the drying box (1). The output end of the alcohol sprayer (704) is connected to a liquid inlet pipe (705). The liquid inlet pipe (705) extends into the wiping chamber (4). The liquid inlet pipe (705) is located in the wiping chamber (4). One end is connected to a spray head (706), a screw (709) is fixedly mounted on the output end of the motor (7010), an inner threaded tube (708) is provided on the outer wall of the screw (709), a wiping ball (707) is fixedly mounted on the outer wall of the inner threaded tube (708), a connecting plate (7011) is fixedly mounted on the end of the inner threaded tube (708), a limiting slide rail (7012) is provided on the sliding sleeve of the outer wall of the connecting plate (7011), and the limiting slide rail (7012) is fixedly mounted on the inner wall of the wiping chamber (4), the blowing head (703), the spray head (706) and the PET film (13) are staggered, and the blowing head (703), the spray head (706) and the motor (7010) are arranged in two groups, one group is located above the PET film (13) and the other group is located below the PET film (13).

4. A drying device for PET film production according to claim 1, characterized in that: The wiping component 2 (8) comprises a booster air pump 3 (801), a blower head 2 (803), and a motor 2 (804). The booster air pump 3 (801) is fixedly mounted on the top of the drying box (1), and the motor 2 (804) is fixedly mounted on the back of the drying box (1). The air inlet end of the booster air pump 3 (801) is connected to the air outlet end driven by the hot air device (11), and the air outlet end of the booster air pump 3 (801) is connected to the air inlet pipe 3 (802). The air inlet end of the blower head 2 (803) is connected to the air inlet pipe 3 (802) through a pipeline. The blower head 2 (803) is provided with two, one of which is One is located above the PET film (13) and the other is located below the PET film (13); a rotating shaft (805) is fixedly mounted on the output end of the motor 2 (804); a cleaning roller (806) is fixedly mounted on the outer wall of the rotating shaft (805); two motors 2 (804) are provided, and the cleaning rollers (806) corresponding to the two motors 2 (804) are one located above the PET film (13) and the other located below the PET film (13); the cleaning rollers (806) are in contact with the surface of the PET film (13), and the cleaning rollers (806) are located between the PET film (13) and the second blower head (803).

5. A drying device for PET film production according to claim 1, characterized in that: The blowing component (9) includes a booster air pump four (901) and a blowing head three (904). The booster air pump four (901) is fixedly installed on the top of the drying box (1). The air inlet end of the booster air pump four (901) is connected to an air filter head (902), and the air outlet end of the booster air pump four (901) is connected to an air inlet pipe four (903). Two blowing heads three (904) are provided, one is located above the PET film (13) and the other is located below the PET film (13). The air inlet end of the blowing head three (904) is connected to the air inlet pipe four (903) through a pipeline.

6. A drying device for PET film production according to claim 2, characterized in that: The upper spray head (602) and the lower spray head (603) are provided in two groups, and the outer wall of the water tank (606) is provided with a water inlet.

7. A drying device for PET film production according to claim 3, characterized in that: The inner layer of the wiping ball (707) is made of a high temperature resistant plastic sphere, and the outer layer is wrapped with soft cloth. The length of the wiping ball (707) is consistent with the length of the hair dryer head (703) and the spray head (706).

8. A drying device for PET film production according to claim 1, characterized in that: The top of the drying box (1) is connected to an exhaust pipe (12), and three exhaust pipes (12) are provided, which are distributed and connected to the dust cleaning chamber (3), the wiping chamber (4), and the finishing chamber (5).

9. A drying device for PET film production according to claim 1, characterized in that: A filter screen (1101) is installed at the air inlet end of the hot air heater (11), a heater (1102) is fixedly installed on the outer wall of the hot air heater (11), a heating wire (1103) is fixedly connected to the heating end of the heater (1102), and the heating wire (1103) is located inside the hot air heater (11).

10. A drying device for PET film production according to claim 1, characterized in that: Two winding components (10) are provided and are respectively located on the left and right sides of the drying box (1), wherein the winding component (10) on the left is used to release the PET film (13), and the winding component (10) on the right is used to wind up the PET film (13). The winding component (10) comprises a bottom plate (1001), a cylinder (1002) is fixedly mounted on the top of the bottom plate (1001), a U-shaped seat (1003) is fixedly mounted on the extended end of the cylinder (1002), a motor three (1004) is fixedly mounted on the outer wall of the U-shaped seat (1003), and the output end of the motor three (1004) is connected to a winding roller (1005) via a connector.