Hot air circulation printing film drying machine

Abstract

The hot air circulation printing film drying machine comprises a machine body, a preheating chamber, a drying chamber, a cooling chamber and a collecting chamber are arranged in the machine body, a preheating fan is arranged in an upper cavity of the preheating chamber, the upper cavity of the preheating chamber communicates with an upper cavity of the cooling chamber through a hot air pipe, and a cooling fan is arranged in a lower cavity of the cooling chamber; according to the scheme, the cooling fan blows air to the dried film, the temperature is reduced, printing ink adhesion is reduced, the preheating fan preheats the film, the film can be better dried, heat emitted by a heat source in the drying chamber is more uniform through the arrangement of the drying fan, and the drying efficiency is improved. The dried film is blown through the cooling fan, cold air is heated to enter the upper cavity of the cooling chamber and is further heated by the drying chamber to enter the upper cavity of the preheating chamber when passing through the hot air pipe, the temperature of flowing air is high at the moment, the film just entering the drying chamber is preheated through the preheating fan, and circulation of preheating and cooling is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of film drying, and in particular to a hot air circulation printing film drying machine. Background Art

[0002] Printing film dryer is a kind of equipment used in the printing industry. It is mainly used for drying printed films. Its main function is to improve the production efficiency and quality of printed films, ensure that the printed films can be dried and cured quickly, avoid blurring, adhesion and other problems during the printing process, and also reduce the loss of printed films and the generation of waste.

[0003] The hot air of the printing film dryer usually needs to be recycled to improve the drying efficiency. The "Announcement No. 'CN216733510U' Energy-saving hot air circulation printing film dryer" discloses that the hot air component, the circulating fan and the exhaust pipe are set to form effective convection in the drying box to improve the drying efficiency. However, the above hot air circulation printing film dryer lacks cooling and preheating of the film and directly stores it. The ink of the printing film is easy to stick, and the heat is not fully utilized. Therefore, in order to solve the above problems, this application provides a hot air circulation printing film dryer.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that preheating and cooling cannot be performed and heat utilization is insufficient, the present application provides a hot air circulation printing film drying machine.

[0006] The present application provides a hot air circulation printing film drying machine, comprising a machine body, wherein a preheating chamber, a drying chamber, a cooling chamber and a collecting chamber are arranged inside the machine body, a preheating fan is arranged in the upper cavity of the preheating chamber, the preheating fan rotates coaxially with a motor outside the preheating chamber through a first rotating shaft, the upper cavity of the preheating chamber is connected with the upper cavity of the cooling chamber through a hot air duct, a cooling fan is arranged in the lower cavity of the cooling chamber, the lower cavity of the cooling chamber is connected with the lower cavity of the preheating chamber through a cold air duct, and two filters are arranged between the upper and lower cavities of the preheating chamber and the upper and lower cavities of the cooling chamber.

[0007] Preferably, the preheating chamber, drying chamber, cooling chamber and collecting chamber are each provided with a plurality of rotating reels for conveying the film, the rotating reels are arranged in an S shape, and the collecting chamber is provided with a storage shaft, and the film is dried by the plurality of rotating reels and then stored by the storage shaft.

[0008] Preferably, a heat source is provided in the lower cavity of the drying chamber, a heat sink fixedly connected to the side wall of the drying chamber is provided above the heat source, and a plurality of heat dissipation holes are provided on the heat sink.

[0009] Preferably, a drying fan is provided inside the drying chamber, and the drying fan is driven by the cooling fan through a transmission assembly.

[0010] Preferably, the transmission assembly includes a worm wheel coaxially fixedly connected to the rotating shaft of the cooling fan, the worm wheel is meshingly connected to a worm, a transmission motor fixedly connected to the cooling chamber is arranged outside the cooling chamber, and the worm rotates coaxially with the rotating shaft of the transmission motor.

[0011] Preferably, the rotating shaft of the drying fan is coaxially fixedly connected with a second rotating shaft, and the second rotating shaft is driven by a worm gear through a transmission belt.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By blowing air on the dried film with a cooling fan, the temperature is lowered and the ink adhesion is reduced. The preheating fan preheats the film, which can better dry it and improve the drying effect. The setting of the drying fan makes the heat emitted by the heat source in the drying chamber more uniform, thereby improving the drying efficiency. Compared with the comparative documents, the setting of the preheating chamber and the cooling chamber reduces the possibility of ink damage and improves the yield.

[0014] The cooling fan blows air on the dried film, and the cold air is heated and enters the upper cavity of the cooling chamber. When passing through the hot air duct, it is further heated by the drying chamber and enters the upper cavity of the preheating chamber. At this time, the flowing air temperature is relatively high, and the preheating fan is used to preheat the film that has just entered. Compared with the comparative document, the preheating and cooling cycle is realized, the heat utilization is more reasonable, and energy is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure in Example 1 of the present application;

[0016] Figure 2 It is a schematic diagram of the internal structure from a first viewing angle in the first embodiment of the present application;

[0017] Figure 3 is a schematic diagram of the internal structure of the second viewing angle in the first embodiment of the present application;

[0018] Figure 4 It is a schematic diagram of the working of the transmission component in Example 1 of the present application.

[0019] Explanation of the accompanying drawings: 1. body; 2. preheating chamber; 3. drying chamber; 4. cooling chamber; 5. collecting chamber; 6. rotating reel; 7. transmission assembly; 701. worm gear; 702. worm; 703. transmission motor; 704. transmission belt; 705. second rotating shaft; 8. filter; 9. preheating fan; 10. first rotating shaft; 11. hot air duct; 12. heat dissipation hole; 13. heat source; 14. cooling fan; 15. drying fan; 16. cold air duct; 17. storage shaft; 18. heat sink. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] Embodiment 1

[0022] Reference Figure 1-4 A hot air circulation printing film drying machine comprises a body 1, wherein a preheating chamber 2, a drying chamber 3, a cooling chamber 4 and a collecting chamber 5 are arranged inside the body 1, a preheating fan 9 is arranged in the upper chamber of the preheating chamber 2, and the preheating fan 9 rotates coaxially with the motor outside the preheating chamber 2 through a first rotating shaft 10, the upper chamber of the preheating chamber 2 is connected with the upper chamber of the cooling chamber 4 through a hot air pipe 11 with good thermal conductivity, a cooling fan 14 is arranged in the lower chamber of the cooling chamber 4, and the lower chamber of the cooling chamber 4 is connected with the lower chamber of the preheating chamber 2 through a cold air pipe 16 with good thermal insulation performance, and two filter screens 8 are arranged between the upper and lower chambers of the preheating chamber 2 and the upper and lower chambers of the cooling chamber 4, which are used to filter dust in the air, and dust affects the printing effect. A plurality of rotating reels 6 for conveying film are arranged inside the preheating chamber 2, the drying chamber 3, the cooling chamber 4 and the collecting chamber 5, and the rotating reels 6 are arranged in an S shape, which increases the drying area and improves the drying efficiency. The collecting chamber 5 is provided with a storage shaft 17 , and the film is stored by the storage shaft 17 after being dried by a plurality of rotating reels 6 .

[0023] The lower cavity of the drying chamber 3 is provided with a heat source 13, and a heat sink 18 fixedly connected to the side wall of the drying chamber 3 is provided above the heat source 13, and a plurality of heat dissipation holes 12 are provided on the heat sink 18. A drying fan 15 is provided inside the drying chamber 3, and the drying fan 15 is driven by the transmission assembly 7 and the cooling fan 14.

[0024] The transmission assembly 7 includes a worm gear 701 coaxially fixedly connected to the rotating shaft of the cooling fan 14, the worm gear 701 is meshedly connected with a worm 702, a transmission motor 703 fixedly connected to the cooling chamber 4 is arranged outside the cooling chamber 4, and the worm 702 rotates coaxially with the rotating shaft of the transmission motor 703. The rotating shaft of the drying fan 15 is coaxially fixedly connected with a second rotating shaft 705, and the second rotating shaft 705 is driven by the worm 702 through a transmission belt 704.

[0025] Under the action of the rotating reel 6, the film moves toward the storage shaft 17, the hot air ejected by the preheating fan 9 preheats the film, and the film enters the drying chamber 3. The heat emitted by the heat source 13 dries the film evenly through the drying fan 15. The air that cools down after contacting the film enters the lower cavity of the cooling chamber 4 through the cold air duct 16, and the dried film enters the cooling chamber 4. The cold air cools the film through the cooling fan 14. The cooled film enters the collecting chamber 5 and is stored through the storage shaft 17. After contacting the dried film, the air becomes hot and enters the upper cavity of the cooling chamber 4, and enters the upper cavity of the preheating chamber 2 through the hot air duct 11. The rotation of the preheating fan 9 causes the hot air to preheat the film again, thereby realizing the circulation of air in the preheating chamber 2 and the cooling chamber 4.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot air circulation printing film drying machine, comprising a machine body (1), characterized in that: The machine body (1) is provided with a preheating chamber (2), a drying chamber (3), a cooling chamber (4) and a collecting chamber (5). The upper chamber of the preheating chamber (2) is provided with a preheating fan (9). The preheating fan (9) rotates coaxially with a motor outside the preheating chamber (2) via a first rotating shaft (10). The upper chamber of the preheating chamber (2) is connected to the upper chamber of the cooling chamber (4) via a hot air pipe (11) with good thermal conductivity. The lower chamber of the cooling chamber (4) is provided with a cooling fan (14). The lower chamber of the cooling chamber (4) is connected to the lower chamber of the preheating chamber (2) via a cold air pipe (16) with good thermal insulation performance. Two filter screens (8) are provided between the upper and lower chambers of the preheating chamber (2) and the upper and lower chambers of the cooling chamber (4).

2. A hot air circulation printing film drying machine according to claim 1, characterized in that: The preheating chamber (2), the drying chamber (3), the cooling chamber (4) and the collecting chamber (5) are all provided with a plurality of rotating reels (6) for conveying the film, the rotating reels (6) being arranged in an S shape, and the collecting chamber (5) is provided with a storage shaft (17), and the film is dried by the plurality of rotating reels (6) and then stored by the storage shaft (17).

3. The hot air circulation printing film drying machine according to claim 1, characterized in that: The lower cavity of the drying chamber (3) is provided with a heat source (13), a heat dissipation plate (18) fixedly connected to the side wall of the drying chamber (3) is provided above the heat source (13), and a plurality of heat dissipation holes (12) are provided on the heat dissipation plate (18).

4. The hot air circulation printing film drying machine according to claim 1, characterized in that: A drying fan (15) is arranged inside the drying chamber (3), and the drying fan (15) is driven by the cooling fan (14) through the transmission assembly (7).

5. The hot air circulation printing film drying machine according to claim 4, characterized in that: The transmission assembly (7) includes a worm wheel (701) coaxially fixedly connected to the rotating shaft of the cooling fan (14), the worm wheel (701) is meshingly connected to a worm (702), and a transmission motor (703) fixedly connected to the cooling chamber (4) is arranged outside the cooling chamber (4), and the worm (702) rotates coaxially with the rotating shaft of the transmission motor (703).

6. The hot air circulation printing film drying machine according to claim 5, characterized in that: The rotating shaft of the drying fan (15) is coaxially fixedly connected with a second rotating shaft (705), and the second rotating shaft (705) is driven by a transmission belt (704) and a worm gear (702).

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