Rapid drying system for drying oven of photogravure press

Abstract

The utility model belongs to the technical field of printing machines, and discloses a rapid drying system for a drying oven of a photogravure press, which comprises a box body, a supporting mechanism is arranged in the box body, the supporting mechanism comprises a plurality of supporting rollers arranged in array, a drying mechanism is arranged below the supporting mechanism, and the drying mechanism is connected with the box body. The drying mechanism comprises an air outlet plate horizontally arranged below the supporting mechanism, a flow guide plate arranged below the air outlet plate and air return plates arranged on the periphery of the air outlet plate, an air return channel is formed in one side of each air return plate, a plurality of air hole injection openings are formed in the air outlet plate and face the supporting rollers, and the supporting rollers are arranged on the air outlet plate. The drying mechanism is connected with an air supply main pipe and an air outlet main pipe, the air return pipeline is communicated with the air outlet main pipe, and the effect that the drying efficiency of the printing film is improved by enabling drying airflow to dry the printing film through the air hole nozzles and enabling the airflow to return to the air outlet main pipe through the air return pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a rapid drying system for the oven of a gravure printing machine. Background Art

[0002] Gravure printing is one of the four printing methods. During printing, printing ink is filled into the pits, and the ink in the pits is transferred to the printing substrate to complete the printing. As a printing process, gravure printing occupies an extremely important position in the fields of printing and packaging and graphic publishing due to its advantages such as thick ink layer of printed products, bright colors, high saturation, high printing resistance of printing plates, stable printing quality, and fast printing speed.

[0003] With the increasing awareness of low-carbon environmental protection among the public, pure water-based ink, as an environmentally friendly ink, will surely become the future trend of the printing industry due to its environmental protection characteristics of no solvent volatilization and residue. With the application of the environmental protection characteristics of pure water-based ink, solvent-based ink will be replaced, and future low-carbon environmental protection printing will surely become the mainstream of the development of the printing industry.

[0004] Since the diluent solvent of solvent-based ink can be quickly volatilized as long as the air is heated, while the water contained in pure water-based ink is not as easy to volatilize as the traditional diluent solvent, simply heating the air through the traditional method results in slow drying of water, leading to low printing speed and affecting production capacity. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rapid drying system for the oven of a gravure printing machine.

[0006] In order to improve the ink drying speed, the utility model adopts the following technical solutions:

[0007] A rapid drying system for the oven of a gravure printing machine includes a box body. A support mechanism is arranged inside the box body. The support mechanism includes a plurality of support rollers arranged in a row. A drying mechanism is arranged below the support mechanism. The drying mechanism includes an air outlet plate arranged below the support mechanism, a diversion plate arranged below the air outlet plate, and a return air plate arranged around the air outlet plate. A plurality of air hole nozzles are formed on the air outlet plate, and the air hole nozzles face the support rollers. A main air supply pipe and a main air outlet pipe are connected to the drying mechanism, and a return air pipe is communicated with the main air outlet pipe.

[0008] By adopting the above technical solutions, the drying mechanism is arranged below the support mechanism, and the hot air is diverted through the diversion plate, so as to dry the printing substrate on the conveying roller through the air hole nozzles on the air outlet plate, thereby improving the ink drying speed. After the air flow is dried, it returns to the main air outlet pipe through the return air pipe.

[0009] Preferably, a drying air duct is formed between adjacent deflector plates, and the drying air duct is provided corresponding to each support roller.

[0010] By adopting the above technical solution, being provided corresponding to the support roller can reduce the possibility of the printing film shaking.

[0011] Preferably, the air hole orifice is arranged in a boss shape, and the end of the air hole orifice close to the support roller is smaller than the end close to the drying air duct.

[0012] Preferably, the inner wall of the air hole orifice is arched inward.

[0013] By adopting the above technical solution, the wind speed inside the air hole orifice can be increased, thereby improving the efficiency.

[0014] Preferably, a heater is arranged in the air supply main pipe.

[0015] By adopting the above technical solution, the temperature of the air flow in the box body can be increased, further improving the drying efficiency.

[0016] Preferably, the air outlet plate is inclined, the end of the air outlet plate close to the air supply main pipe is higher than the end close to the air outlet main pipe, and the air outlet plate is bent towards the bottom.

[0017] By adopting the above technical solution, the inclined air outlet plate can reduce the angle between the air hole orifice and the air flow, further increasing the air flow size of the gas going out from the air hole orifice and improving the drying effect.

[0018] Preferably, the backflow plates are all inclined, and the deflector plates are inclined from the air outlet plate towards the air supply main pipe.

[0019] By adopting the above technical solution, it can facilitate the guiding of the air flow.

[0020] Preferably, the air supply main pipe is arranged at the outlet of the printing film, and the air outlet main pipe is arranged at the inlet of the printing film.

[0021] By adopting the above technical solution, the air flow and the movement of the printing film are in opposite directions, increasing the relative flow rate between the printing film and the air flow and further improving the drying effect.

[0022] The beneficial effects of the present utility model: The hot air is discharged towards the printing film through the air hole orifice, thereby drying the printing film and improving the drying efficiency. The flowing gas flows back to the air outlet main pipe through the return air plate, thereby realizing the circulation of the gas. The heater arranged in the air outlet main pipe can further heat the gas, thereby improving the drying efficiency. Description of the Drawings

[0023] Figure 1It is an external schematic diagram of a rapid drying system for the oven of a gravure printing press in an embodiment of the present utility model;

[0024] Figure 2 It is a schematic diagram of the interior of a rapid drying system for the oven of a gravure printing press of the present utility model;

[0025] Figure 3 It is a cross-sectional view of a rapid drying system for the oven of a gravure printing press of the present utility model;

[0026] Figure 4 It is a schematic diagram of the structure at the air hole injection port of the present utility model.

[0027] Explanation of reference numerals:

[0028] 1. Box body; 2. Support mechanism; 3. Support roller; 4. Drying mechanism; 5. Air outlet plate; 6. Flow guide plate; 7. Return air plate; 8. Air hole injection port; 9. Main air supply pipe; 10. Main air outlet pipe; 11. Drying air duct; 12. Heater. Specific implementation manners

[0029] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model are shown in the drawings rather than all the structures.

[0030] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature is at a lower horizontal height than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] Refer to the following Figures 1 to 4 The utility model provides a description of the ... ...

[0034] Reference Figure 1 and 2 A fast drying system for a gravure printing machine oven includes a box body 1, a support mechanism 2 and a drying mechanism 4 are arranged in the box body 1, and the drying mechanism 4 is arranged below the support mechanism 2. The drying mechanism 4 is used to dry the printing film transported on the support mechanism 2. One side of the box body 1 is connected to an air supply pipe 9, and the other side is provided with an air outlet pipe 10.

[0035] Reference Figure 2 and 3 The supporting mechanism 2 includes a plurality of supporting rollers 3 arranged in an array. The positions of the supporting rollers 3 are gradually increased from one end of the box body 1 to the other end, and the printing film is transported from a lower position to a higher position.

[0036] Reference Figure 2 and 3 The drying mechanism 4 includes an air outlet plate 5 arranged below the supporting mechanism 2, a guide plate 6 arranged below the air outlet plate 5, and a return air plate 7 arranged around the air outlet plate 5. Both ends of the air outlet plate 5 are fixedly connected to the inner wall of the box body 1. The guide plate 6 and the air outlet plate 5 are fixedly connected. The return air plate 7 is fixedly connected to the inner wall of the box body 1. A return air channel is formed on one side of the return air plate 7. The return air duct is connected to the air outlet main pipe 10. A drying air duct 11 is formed between adjacent guide plates 6, and the drying air duct 11 is arranged corresponding to each supporting roller 3.

[0037] Reference Figure 3 and 4 The air outlet plate 5 is tilted and bent toward the side away from the support mechanism 2. The air outlet plate 5 is tilted along the support roller 3. A plurality of air holes 8 are provided on the air outlet plate 5. The air holes 8 are arranged in a boss shape, and the air holes 8 are closer to the support roller 3 than to the drying air duct 11. In order to further improve the drying effect, the inner wall of the air hole 8 is arched inward (not shown in the figure).

[0038] Reference Figure 3 The guide plates 6 are all inclined, and the guide plates 6 are inclined from one side of the air outlet plate 5 toward the air supply main pipe 9. The inclined guide plates 6 can be more convenient for air intake.

[0039] Reference Figure 3 , the main air supply pipe 9 is arranged at the outlet of the printing film, and the main air outlet pipe 10 is arranged at the inlet of the printing film.

[0040] Reference Figure 2 and 3 , after the air flow enters the box body 1 from the main air supply pipe 9, it enters the air hole nozzle 8 through the drying air duct 11, and then flows towards the supporting roller 3 to dry the printing film. Then, it flows in the return air channel on one side of the return air plate 7 after colliding with the return air plate 7, and finally enters the main air outlet pipe 10.

[0041] Reference Figure 2 , a heater 12 is arranged in the main air supply pipe 9. In this embodiment, it is a precision control heater 12. The problem can be further adjusted through the precision control heater 12, which is convenient for controlling the drying efficiency.

[0042] The working principle of the embodiment of the present application is that after the air flow is heated by the heater 12 in the main air supply pipe 9, it enters between the guide plates 6, and then flows towards the supporting roller 3 through the air hole nozzle 8, so as to dry the printing film. The air flow flows in the opposite direction of the movement direction of the printing film, is affected by the return air plate 7, flows to the main air outlet pipe 10, and then flows out of the box body 1, improving the drying effect.

[0043] Obviously, the above embodiments of the present utility model are only examples for clearly explaining the present utility model, and are not limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. A rapid drying system for the oven of an intaglio printing press, characterized in that, It includes a box body (1), a support mechanism (2) is arranged inside the box body (1), the support mechanism (2) is used to support the printing film, the support mechanism (2) includes a plurality of support rollers (3) arranged in a row, a drying mechanism (4) is arranged below the support mechanism (2), the drying mechanism (4) includes an air outlet plate (5) arranged below the support mechanism (2), a diversion plate (6) arranged below the air outlet plate (5), and a return air plate (7) arranged around the air outlet plate (5), a return air channel is formed on one side of the return air plate (7), a plurality of air hole nozzles (8) are opened on the air outlet plate (5), the air hole nozzles (8) are arranged towards the support rollers (3), a main air supply pipe (9) and a main air outlet pipe (10) are connected to the drying mechanism (4), and the return air channel is communicated with the main air outlet pipe (10).

2. The rapid drying system for the oven of a gravure printing press according to claim 1, wherein A drying air duct (11) is formed between adjacent diversion plates (6), and the drying air duct (11) is arranged corresponding to each support roller (3).

3. The rapid drying system for the oven of a gravure printing press according to claim 2, characterized in that, The air hole nozzle (8) is arranged in a convex platform shape, and the end of the air hole nozzle (8) close to the support roller (3) is smaller than the end close to the drying air duct (11).

4. The rapid drying system for the oven of a gravure printing press according to claim 1, characterized in that, The inner wall of the air hole nozzle (8) is arched inwards.

5. The rapid drying system for the oven of a gravure printing press according to claim 1, characterized in that, A heater (12) is arranged inside the main air supply pipe (9).

6. The rapid drying system for the oven of a gravure printing press according to claim 1, wherein, The air outlet plate (5) is arranged obliquely, the end of the air outlet plate (5) close to the main air supply pipe (9) is higher than the end close to the main air outlet pipe (10), and the air outlet plate (5) is bent towards the bottom.

7. A rapid drying system for the oven of an intaglio printing press according to claim 1, characterized in that, The diversion plates (6) are all arranged obliquely, and the diversion plates (6) are inclined from the air outlet plate (5) towards the main air supply pipe (9).

8. A quick drying system for the oven of a gravure printing press according to claim 1, characterized in that, The main air supply pipe (9) is arranged at the outlet of the printing film, and the main air outlet pipe (10) is arranged at the inlet of the printing film.

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