CN209616621U - A gravure oven - Google Patents

Abstract

The utility model provides a gravure printing oven, which comprises an oven. The oven is provided with an air inlet and an air outlet. Several ovens are sequentially connected in series through the air inlets and air outlets. Each of the ovens is equipped with an air inlet fan. and a heater, wherein the air inlet fan of the first oven is connected to the atmosphere, and the air outlet of the last oven is provided with an exhaust fan, and the exhaust fan is connected to the atmosphere, and the air outlet of the oven is connected to the atmosphere. When the air inlets of the adjacent ovens communicate with each other, a first control damper is also provided. The gravure printing oven provided by the utility model can have multiple ovens, which can be suitable for gravure printing products of different widths, make full use of the waste heat of the oven, reduce the energy consumption of the gravure printing oven as a whole, and can better eliminate the waste heat in the discharge. Harmful substances, energy consumption, environmental protection and quality are considered as a whole, and the best match is achieved to achieve intelligent, environmentally friendly and safe drying.

Description

A gravure oven

technical field

The utility model relates to a gravure oven, which belongs to the technical field of printing equipment.

Background technique

The main structure of the gravure printing machine includes five parts: paper feeding, ink feeding, printing, drying, and winding; during printing, the ink is filled into the pits, and the printing plate and the substrate are in contact with a certain pressure to carry out the printing on the substrate. Printing; when printing substrates, inks of different colors are usually used for overlay printing, so multiple gravure printing machines are required to form a unit to perform multi-auxiliary printing on substrates. Due to the need for multi-auxiliary printing on substrates, therefore After passing through each gravure printing machine, the substrate needs to be dried before entering the next gravure printing machine.

At present, in the gravure printing oven, the fan of each color group takes cold air from the bottom of the oven and blows it into the oven through the infrared heating pipe of the fan. To the outside, so a lot of heat is directly discharged to the outside, resulting in waste, and the utilization rate of heat in the currently used oven is also very low. At the same time, the air with waste heat passing through the oven is directly discharged into the atmosphere, causing pollution to the atmosphere.

Contents of the invention

This solution aims to provide a gravure oven for the existing gravure oven that directly discharges hot air to the outside, causing energy waste and air pollution, as well as the current low heat utilization rate of the oven, which can realize heat recovery and reuse, and improve efficiency. air pollution.

In order to solve the above problems, the utility model provides a gravure oven, including an oven, the oven is provided with an air inlet and an air outlet, several ovens are connected in series through their air inlets and air outlets, each of the ovens All are equipped with air intake fans and heaters, wherein the air intake fans of the first oven are connected to the atmosphere, and the air outlets of the last oven are provided with exhaust fans, and the exhaust fans are connected to the atmosphere. When the air outlet of the oven communicates with the air inlet of the adjacent oven, a first control damper is also provided.

The air coming out of the first oven also has waste heat, and then enters the adjacent second oven, which can make full use of the waste heat of the drying air and reduce energy consumption.

Further, the air outlet of the exhaust fan is also provided with a dust filter.

Further, the oven includes an air inlet chamber, a heating chamber, a drying chamber and a return air chamber, the drying chamber is provided with a support platform for placing articles to be dried, and the support platform divides the drying chamber into main A drying chamber and an auxiliary drying chamber, an air deflector is provided between the main drying chamber and the heating chamber, the auxiliary drying chamber communicates with the main drying chamber through the return air chamber, the The air inlet chamber is provided with an air inlet, the end of the auxiliary drying chamber is provided with an air outlet, and both the support platform and the air deflector are provided with a number of small holes.

Further, the heater is arranged in the heating chamber, the air intake fan is arranged in the air inlet chamber, and the inlet of each of the air inlet chambers is also connected to the atmosphere through a second control damper pipeline.

Further, the exhaust port of each oven is provided with an exhaust gas sensor and communicates with the air inlet chamber through a pipeline provided with a third control damper.

Compared with the prior art, the utility model has the following advantages:

The gravure printing oven provided by the utility model can have multiple ovens, which can be suitable for gravure printing products of different widths, make full use of the residual heat of the oven, reduce the energy consumption of the gravure printing oven as a whole, and can better eliminate the waste in the discharge. Harmful substances, energy consumption, environmental protection and quality are considered as a whole, and the best match is realized to achieve intelligent, environmental protection and safe drying. At the same time, the oven is equipped with a return air chamber, which can further improve the heat utilization rate of the oven and speed up the drying speed.

Description of drawings

Fig. 1 is the schematic diagram of the utility model embodiment one;

Fig. 2 is the schematic diagram of the second embodiment of the utility model;

Fig. 3 is the structural representation of oven in the utility model embodiment;

In the figure: 1 is the oven, 2 is the air intake fan, 3 is the exhaust fan, 4 is the first control damper, 5 is the dust filter, 6 is the heater, 7 is the second control damper, 8 is the exhaust gas sensor, 9 is the third control damper, 11 is the air inlet chamber, 12 is the heating chamber, 13 is the drying chamber, 14 is the return air chamber, 15 is the supporting platform, 16 is the main drying chamber, 17 is the auxiliary drying chamber, 18 For the wind deflector.

Detailed ways

In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, specific embodiments of the utility model will be described in detail below in conjunction with the accompanying drawings.

Those skilled in the art can understand that unless otherwise defined, all terms (including technical terms and directional terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs.

Embodiment one

As shown in Figure 1, a kind of gravure printing oven comprises oven 1, and described oven 1 is provided with air inlet and air outlet, and several described ovens 1 are connected in series by its air inlet and air outlet, and each described oven 1 are equipped with an air inlet fan 2 and a heater 6, wherein the air inlet fan 2 of the first oven 1 is connected to the atmosphere, and the air outlet of the last oven 1 is provided with an exhaust fan 3, and the exhaust fan 3 is provided at the air outlet of the oven 1. The blower 3 communicates with the atmosphere, and the air outlet of the oven 1 is also provided with a first control damper 4 when communicating with the air inlet of the adjacent oven 1 .

The air outlet of the exhaust fan 3 is also provided with a dust filter 5 .

Embodiment two

As shown in Figure 2, a kind of gravure printing oven comprises oven 1, and described oven 1 is provided with air inlet and air outlet, and several described ovens 1 are connected in series by its air inlet and air outlet, and each described oven 1 are equipped with an air inlet fan 2 and a heater 6, wherein the air inlet fan 2 of the first oven 1 is connected to the atmosphere, and the air outlet of the last oven 1 is provided with an exhaust fan 3, and the exhaust fan 3 is provided at the air outlet of the oven 1. The blower 3 communicates with the atmosphere, and the air outlet of the oven 1 is also provided with a first control damper 4 when communicating with the air inlet of the adjacent oven 1 .

As shown in Figure 3, the oven 1 includes an air inlet chamber 11, a heating chamber 12, a drying chamber 13 and a return air chamber 14, and the drying chamber 13 is provided with a support table 15 for placing articles to be dried, so The supporting table 15 divides the drying chamber 13 into a main drying chamber 16 and an auxiliary drying chamber 17, and an air deflector 18 is arranged between the main drying chamber 16 and the heating chamber 12, and the auxiliary drying chamber The drying chamber 17 communicates with the main drying chamber 16 through the return air chamber 14, the air inlet chamber 11 is provided with an air inlet, and the end of the auxiliary drying chamber 17 is provided with an air outlet, and the support platform 15 and The wind deflectors 18 are provided with several small holes.

The heater 6 is arranged in the heating chamber 12, the air intake fan 2 is arranged in the air inlet chamber 11, and the entrance of each of the air inlet chambers 11 is also provided with a second control damper 7 pipes. The road connects to the atmosphere.

The exhaust port of each oven 1 is provided with a waste gas sensor 8 and communicates with the air inlet chamber 11 through a pipeline provided with a third control damper 9 .

Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, so the protection scope of the present utility model should be based on the scope defined in the claims.

Claims (5)

1. A gravure printing oven, characterized in that: comprising an oven (1), the oven (1) is provided with an air inlet and an air outlet, and several ovens (1) are sequentially connected in series through their air inlets and air outlets, Each of the ovens (1) is equipped with an air inlet fan (2) and a heater (6), wherein the air inlet fan (2) of the first oven (1) is connected to the atmosphere, and the last one of the oven (1) is connected to the atmosphere. The air outlet of the oven (1) is provided with an exhaust fan (3), and the exhaust fan (3) is connected to the atmosphere, and the air outlet of the oven (1) is connected to the air inlet of the adjacent oven (1). When connected, a first control damper (4) is also provided. 2. A gravure printing oven according to claim 1, characterized in that: the air outlet of the exhaust fan (3) is also provided with a dust filter (5). 3. A gravure oven according to claim 1, characterized in that: the oven (1) includes an air inlet chamber (11), a heating chamber (12), a drying chamber (13) and a return air chamber ( 14), the drying chamber (13) is provided with a support table (15) for placing items to be dried, and the support table (15) divides the drying chamber (13) into a main drying chamber (16) and an auxiliary drying chamber (17), an air deflector (18) is provided between the main drying chamber (16) and the heating chamber (12), and the auxiliary drying chamber (17) passes through the The air chamber (14) communicates with the main drying chamber (16), the air inlet chamber (11) is provided with an air inlet, the end of the auxiliary drying chamber (17) is provided with an air outlet, and the support platform ( 15) and the wind deflector (18) are provided with several small holes. 4. A gravure oven according to claim 3, characterized in that: the heater (6) is set in the heating chamber (12), the air inlet fan (2) is set in the In the air chamber (11), the inlet of each air inlet chamber (11) is also connected to the atmosphere through a pipeline provided with a second control damper (7). 5. A gravure printing oven according to claim 4, characterized in that: the exhaust port of each oven (1) is provided with an exhaust gas sensor (8) and is equipped with a third control damper (9) The pipeline communicates with the air inlet chamber (11).