Drying device of coating machine

Abstract

The utility model discloses a drying device of a coating machine, which relates to the technical field of coating machines and comprises a shell, a plurality of transmission rollers are fixedly mounted in the shell, and a circulating component is arranged on the shell and used for adjusting internal circulation and external circulation of hot air. A heating box is fixedly installed at the top end of the shell, and an air uniformizing assembly is arranged between the heating box and the shell and used for evenly heating a film through hot air. And the air is pressurized before entering the heating box, so that the air is heated, the preheating time is shortened, and the energy consumption of the heating box is reduced. Meanwhile, the internal circulation and the external circulation can be automatically switched, so that the operation is more convenient. The film can be dried from the upper portion and the side portion at the same time, and the film drying efficiency is improved while film shaking caused by the fact that up and down air is blown to the film from the forward direction at the same time is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating machine, especially relates to a coating machine drying device. BACKGROUND

[0002] The coating machine is mainly used for the coating process on the surface of film, paper and other products, and the film needs to be dried before and after coating, and the film needs to be pre-dried before coating to improve the temperature of the film surface and the adhesion of the coating, and the coating on the film surface needs to be dried after coating.

[0003] During drying, the circulation of hot air needs to be manually controlled, and the preheating time required for heating the hot air to the required temperature is long, and the hot air drying only blows the hot air on the upper surface of the film, and due to the blocking of the film, the uniformity of the bottom hot air is poor, resulting in uneven evaporation of the film glue layer solvent, and the glue layer has broken holes, pockmarks and other undesirable appearances. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a coating machine drying device, which can effectively solve the technical problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0006] A coating machine drying device, comprising a shell, a plurality of transmission rollers are fixedly installed in the shell, a circulating assembly is arranged on the shell, the circulating assembly comprises a pressurized fan for pressurizing and heating air;

[0007] A heating box is fixedly installed at the top end of the shell, and an air uniformizing assembly is arranged between the heating box and the shell for uniformizing the flow of hot air and changing the flow direction.

[0008] As a further scheme of the utility model, the circulating assembly comprises a pressurizing chamber, the pressurizing chamber is fixedly installed on the shell, a pressurized fan is installed in the pressurizing chamber, and an air outlet pipe is fixedly installed between the pressurizing chamber and the heating box.

[0009] As a further scheme of the utility model, an air inlet pipe is connected to the top end of the pressurizing chamber, a fan is fixedly installed on the shell, and a circulating pipe is fixedly installed between the fan and the air inlet pipe.

[0010] As a further scheme of the utility model, a baffle is arranged between the air inlet pipe and the circulating pipe, and the top end of the connection between the baffle and the air inlet pipe and the circulating pipe is rotationally connected.

[0011] As a further scheme of the present utility model, the air equalizing assembly comprises an air equalizing plate, which is fixedly installed above the transmission roller inside the shell, and forms an air equalizing chamber I with the top end of the shell inside, and a plurality of air equalizing rollers are fixedly installed in the air equalizing chamber I.

[0012] As a further scheme of the present utility model, the shell is provided with an air equalizing chamber II, a branch pipe is fixedly installed between the air equalizing chamber II and the heating box, a side air outlet is formed in the shell, and a wind collecting plate is arranged in the shell.

[0013] The present utility model has the following beneficial effects:

[0014] The circulation assembly cooperates with the heating box, so that the air is pressurized before entering the heating box, thereby increasing the temperature of the air and reducing the preheating time.

[0015] The air equalizing assembly is arranged, so that the hot air can be uniformly blown from the top end and one side to dry the film, and the blowing angles are different, which can effectively improve the uniformity during drying while preventing the film from being shaken by the upward and downward air blowing to the film in the same direction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the present utility model a drying device of coating machine;

[0017] Figure 2 It is an internal structure schematic view of the shell of the present utility model a drying device of coating machine;

[0018] Figure 3 It is a hot air side edge working structure schematic view of the present utility model a drying device of coating machine;

[0019] Figure 4 It is a circulation assembly structure schematic view of the present utility model a drying device of coating machine;

[0020] Figure 5 It is a part of internal structure schematic view of the circulation assembly of the present utility model a drying device of coating machine.

[0021] In the drawing: 1, shell; 2, transmission roller; 3, circulation assembly; 31, pressurizing chamber; 32, pressurizing fan; 33, air inlet pipe; 34, air outlet pipe; 35, fan; 36, circulation pipe; 37, baffle; 4, heating box; 5, air equalizing assembly; 51, air equalizing chamber I; 52, air equalizing roller; 53, air equalizing plate; 54, branch pipe; 55, air equalizing chamber II; 56, side air outlet; 57, wind collecting plate. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation characteristics, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As shown in Figures 1-5 A coating machine drying device, including casing 1, casing 1 bottom end is close to two side positions and is equipped with opening, for film in and out.Casing 1 inside fixed mounting has multiple transmission roller 2, and transmission roller 2 evenly distributes, for transmission to film, and film is consistent when stress transmission between transmission roller 2.Casing 1 is provided with circulation assembly 3, for hot air internal circulation and external circulation.

[0024] Casing 1 is fixedly installed with pressurizing chamber 31, and pressurizing fan 32 is installed in pressurizing chamber 31, the fan blade of pressurizing fan 32 is arc-shaped at upper and lower ends, and the radii are opposite, and the diameter of the upper end is smaller than that of the lower end.Due to the special shape of pressurizing fan 32, pressurizing fan 32 will quickly suck in air when rotating, and the air is pressurized and heated, avoiding the problem of long preheating time of traditional heating method, and its principle is the same as that of automobile turbocharging.

[0025] In the embodiment, the top end of the pressurizing chamber 31 is fixedly installed with an air inlet pipe 33 for communication with the outside air. The heating box 4 is fixedly installed on the casing 1, and the heating box 4 is fixedly connected with the pressurizing chamber 31 through the air outlet pipe 34, for conveying the pressurized and heated air to the heating box 4 to heat to a specified temperature, reducing the heating time.

[0026] In the embodiment, a fan 35 is fixedly installed on one side of the casing 1, and the fan 35 is connected with the air inlet pipe 33 through a circulation pipe 36 for internal circulation of hot air. Preferably, the circulation pipe 36 can be connected with a tail gas treatment device through a pipeline and a valve (not shown in the figure) for tail gas treatment after drying is completed. A baffle 37 is rotatably installed at the connection between the air inlet pipe 33 and the circulation pipe 36 for automatic adjustment of internal circulation. When internal circulation, the fan 35 extracts hot air in the casing 1, which rotates the baffle 37 under the action of hot air force, thereby blocking the air inlet pipe 33, and the hot air is in internal circulation.

[0027] In the embodiment, an air equalization assembly 5 is arranged between the casing 1 and the heating box 4 for equalizing the flow of hot air. A flow equalization plate 53 is fixedly installed above the transmission roller 2 in the casing 1, and a plurality of through holes are formed in the flow equalization plate 53 for equalizing the flow of hot air, so that the hot air above the transmission roller 2 can uniformly dry the upper part of the film. An equalization interval I 51 is arranged between the flow equalization plate 53 and the top end of the casing 1, and the top end of the equalization interval I 51 is inclined. A plurality of flow equalization rollers 52 are arranged in the equalization interval I 51, and each column of flow equalization rollers 52 is arranged in an array and staggered between each column for equalizing the flow of hot air.

[0028] In the embodiment, the side edge of the shell 1 is provided with an even-flowing room two 55 below the transmission roller 2, the two sides of the even-flowing room two 55 are inclined structures for even-flowing the hot air of the side edge. The even-flowing room two 55 is fixedly installed with a branch pipe 54 between the even-flowing room two 55 and the heating box 4 for transmitting the hot air. The shell 1 is provided with a side air outlet 56, and the side air outlet 56 is inclined, and the angle is preferably 45 degrees, so that the hot air can evenly blow and dry the film along the angle of the side air outlet 56. The shell 1 is provided with a wind collecting plate 57, the wind collecting plate 57 is an inclined plate, and one end of the wind collecting plate 57 is in contact with the fan 35, so that the hot air can move to the fan 35 along the angle of the wind collecting plate 57, thereby accelerating the horizontal flow rate of the hot air below the film.

[0029] It should be noted that the utility model is a kind of coating machine drying device, when using, start pressurized fan 32, air is pressurized by entering into pressurized chamber 31 by air inlet pipe 33 by pressurized fan 32, so that the air pressure and temperature of the air passing through air outlet pipe 34 are all increased, the heating time of air passing through heating box 4 is reduced. After air is heated to specified temperature by heating box 4, part of air enters even-flowing room one 51, and the film passing through transmission roller 2 is evenly dried from directly above by the even-flowing effect of even-flowing roller 52 and even-flowing plate 53. Another part of air enters even-flowing room two 55 by branch pipe 54, and then the film is blown and dried along the angle of side air outlet 56 by side air outlet 56, since the angles of upper and lower hot air are different, the problem that film is shaken by wind can be effectively prevented.

[0030] Start fan 35, so that the hot air in shell 1 is sucked into circulation pipe 36 by fan 35, under the impact of hot air, baffle 37 is rotated, so that air inlet pipe 33 is blocked, hot air forms internal circulation, and energy consumption is reduced. After drying, fan 35 can transmit the hot gas containing coating solvent to tail gas treatment device for tail gas treatment, there is no hot gas flowing in circulation pipe 36, circulation pipe 36 is re-sealed under the action of baffle 37 and pressurized fan 32, so that internal circulation is automatically ended, manual adjustment is not needed, and it is more convenient.

[0031] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coating oven device, comprising a housing (1), a plurality of transmission rollers (2) are fixedly installed in the housing (1), characterized in that: The shell (1) is provided with a circulating assembly (3), the circulating assembly (3) comprises a pressurized fan (32) for pressurizing and heating air; The top end of the shell (1) is fixedly provided with a heating box (4), and an air uniformizing assembly (5) is arranged between the heating box (4) and the shell (1) for uniformizing and changing the flow direction of hot air.

2. A coating oven apparatus as claimed in claim 1, wherein: The circulating assembly (3) comprises a pressurizing chamber (31) fixedly installed on the shell (1), the pressurized fan (32) is installed in the pressurizing chamber (31), and the pressurizing chamber (31) is fixedly provided with an air outlet pipe (34) between the heating box (4).

3. A coating oven apparatus as claimed in claim 2, wherein: The top end of the pressurizing chamber (31) is connected with an air inlet pipe (33), a fan (35) is fixedly installed on the shell (1), and the fan (35) is fixedly provided with a circulating pipe (36) between the air inlet pipe (33).

4. A coating oven apparatus as claimed in claim 3, wherein: The air inlet pipe (33) and the circulating pipe (36) are provided with a baffle (37), and the top end of the connection between the baffle (37) and the air inlet pipe (33) and the circulating pipe (36) is rotationally connected.

5. The coating oven apparatus of claim 1, wherein: The air uniformizing assembly (5) comprises a flow uniformizing plate (53) fixedly installed inside the shell (1) above the transmission roller (2), the flow uniformizing plate (53) and the top end of the shell (1) form a flow uniformizing room (51), and a plurality of flow uniformizing rollers (52) are fixedly installed in the flow uniformizing room (51).

6. A coating oven apparatus as claimed in claim 5, wherein: The shell (1) is provided with a flow uniformizing room (55), the flow uniformizing room (55) and the heating box (4) are fixedly provided with a branch pipe (54), the shell (1) is provided with a side air outlet (56), and the shell (1) is provided with a wind collecting plate (57).

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