CN214646782U

CN214646782U - Ventilation structure of printing drying-machine

Info

Publication number: CN214646782U
Application number: CN202120015094.5U
Authority: CN
Inventors: 谢文慧
Original assignee: Lichuang Shenzhen Intelligent Equipment Co ltd
Current assignee: Lichuang Shenzhen Intelligent Equipment Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-09
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to a ventilation structure of a printing dryer, which comprises a drying box, wherein a heater is arranged on the inner side wall of the drying box; the top of the drying box is provided with an opening; an upper cover is arranged on the opening; the bottom of the upper cover is provided with a positive pressure fan; the bottom of the drying box is provided with an air outlet; the air outlet is provided with a storage rack at one side of the drying box; the shelf covers the air outlet; the other air outlet is provided with an air outlet channel relative to the drying box; a negative pressure fan is arranged in the air outlet channel; the bottom of the air outlet channel is connected with a heat exchange box. The utility model discloses in, with the relative upper and lower both sides of setting at the supporter of positive pressure fan and negative-pressure air fan, after the heater starts, the hot-air rises, opens positive pressure fan and negative-pressure air fan, makes the hot-air decline, must pass through the printing piece on the supporter at the in-process that falls, just can get into in the air flue. Therefore, the printing rack on the shelf can be fully contacted with hot air, and ventilation and drying are realized.

Description

Ventilation structure of printing drying-machine

Technical Field

The utility model relates to a ventilation structure, concretely relates to printing drying machine's ventilation structure belongs to printed matter drying equipment technical field.

Background

Printing is a technology of transferring ink to the surface of paper, fabric, plastic products, leather and other materials through processes of plate making, inking, pressurizing and the like to copy the content of the original in batches, wherein the printing is a process of transferring the printing plate approved by verification to a printing stock through a printing machine and special ink, and the surface of a product printed by a printing device is partially undried ink, so that the printed product needs to be dried. The printing type dryer is suitable for drying printing, spraying and drying the surface of a product, electronic elements, thermosetting adhesive, thermosetting ink, spray painting, printing, clothing printing, printing and dyeing, food and the like. The traditional printing dryer adopts a full fresh air system, ambient air enters the inside of the printing machine to dry printed matters after being heated by the heat exchanger, and high-temperature waste gas is directly discharged into the ambient atmosphere after the printed matters are dried. Because a large amount of heat still exists in the discharged waste gas, the structure cannot effectively recycle the waste gas, the heat is wasted, and the energy consumption is high. Secondly, after hot air is generated in the dryer, the hot air is distributed upwards and accumulated, so that the uneven drying mode of the printed part is easy to occur. Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an overcome the defect among the prior art, provide a printing drying-machine's ventilation structure, simple structure is reasonable, and ventilation effect is good, and drying efficiency is high, reduces to discharge, and is energy-concerving and environment-protective, and concrete scheme is as follows:

a ventilation structure of a printing dryer comprises a drying box, wherein a heater is arranged on the inner side wall of the drying box; the top of the drying box is provided with an opening; an upper cover is arranged on the opening; the bottom of the upper cover is provided with a positive pressure fan; the bottom of the drying box is provided with an air outlet; a storage rack is arranged at one side of the drying box at the air outlet; the shelf covers the air outlet; the other air outlet of the air outlet is provided with an air outlet channel relative to the drying box; a negative pressure fan is arranged in the air outlet channel; the bottom of the air outlet channel is connected with a heat exchange box.

Preferably, the inner side of the bottom of the drying box is provided with a ring groove; the shelf is a cylindrical shelf; the bottom of the shelf is inserted into the ring groove in an embedded manner.

Preferably, the shelf is provided with a grid net; the commodity shelf comprises at least two layers.

Preferably, the upper cover is provided with a wiring hole relative to the positive pressure fan; and the side wall of the air duct is provided with a wiring hole relative to the negative pressure fan.

Preferably, the heat exchange box comprises a heat exchange layer and a ventilation layer; the heat exchange box is connected with the drying box through a return air pipe.

Preferably, a heat conducting copper pipe is arranged in the heat exchange layer; a fresh air inlet is formed in one side of the ventilation layer; and the other side of the ventilation layer is communicated with an air return pipe.

Preferably, the heat conducting copper pipe extends into the ventilation layer; and an air spoiler is arranged in the ventilation layer.

The utility model discloses in, with the relative upper and lower both sides of setting at the supporter of positive pressure fan and negative-pressure air fan, after the heater starts, the hot-air rises, opens positive pressure fan and negative-pressure air fan, makes the hot-air decline, must pass through the printing piece on the supporter at the in-process that falls, just can get into in the air flue. Therefore, the printing rack on the shelf can be fully contacted with hot air, and ventilation and drying are realized. Meanwhile, hot air entering the air outlet channel can heat external cold air through the heat exchange copper pipe, and the cold air subjected to heat exchange can enter the drying box again through the air return pipe, so that the use strength of the heater is greatly reduced, and the energy-saving effect is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic mechanism diagram of the positive pressure fan.

In the figure, 1 is a drying box, 2 is a heater, 3 is an opening, 4 is an upper cover, 5 is a positive pressure fan, 6 is an air outlet, 7 is a storage rack, 8 is an air outlet, 9 is a negative pressure fan, 10 is a heat exchange box, 10.1 is a heat exchange layer, 10.2 is a ventilation layer, 11 is an air return pipe, 12 is a fresh air inlet, and 13 is a one-way valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.

Referring to fig. 1, a ventilation structure of a printing dryer includes a drying box 1, wherein a heater 2 is disposed on an inner side wall of the drying box 1; the top of the drying box 1 is provided with an opening 3; an upper cover 4 is arranged on the opening 3; the bottom of the upper cover 4 is provided with a positive pressure fan 5; the bottom of the drying box 1 is provided with an air outlet 6; a storage rack 7 is arranged at one side of the drying box at the air outlet 6; the shelf 7 covers the air outlet 6; the other air outlet 6 is provided with an air outlet channel 8 relative to the drying box 1; a negative pressure fan 9 is arranged in the air outlet channel 8; the bottom of the air outlet channel 8 is connected with a heat exchange box 10.

Further, a ring groove is formed in the inner side of the bottom of the drying box 1; the shelf 7 is a cylindrical shelf; the bottom of the article shelf 7 is inserted in the ring groove in an embedded manner.

Furthermore, a grid net is arranged on the shelf 7; the commodity shelf 7 comprises at least two layers.

Specifically, in this embodiment, because supporter 7 is made by the grid net, the hot-air of stoving incasement gets into the in-process of air flue 8 under positive pressure fan and negative pressure fan's effect, can be even with each face contact of printing, solve among the prior art inhomogeneous defect of drying.

Furthermore, the upper cover 4 is provided with a wiring hole relative to the positive pressure fan 5; and the side wall of the air duct is provided with a wiring hole relative to the negative pressure fan 9.

Further, the heat exchange box 10 comprises a heat exchange layer 10.1 and a ventilation layer 10.2; the heat exchange box 10 is connected with the drying box 1 through a return air pipe 11.

Specifically, in this embodiment, after the hot air passes through the air duct 8 and enters the heat exchange layer 10.1, heat exchange occurs between the hot air and the heat conduction copper pipe, so that the heat conduction copper pipe is heated. After heat balance is achieved, air in the heat exchange layer 10.1 can enter the air return pipe through the one-way valve 13 and is discharged into the drying box again, and air in the heat exchange layer 10.1 can be discharged outwards by taking down the one-way valve.

Further, a heat conducting copper pipe is arranged in the heat exchange layer 10.1; a fresh air inlet 12 is formed in one side of the ventilation layer 10.2; the other side of the ventilation layer 10.2 is communicated with an air return pipe 11.

Specifically, in this embodiment, since the heat conducting copper pipe is connected to the ventilation layer 10.2, the temperature of the air entering the ventilation layer 10.2 from the outside will rise after the air is in full contact with the heat conducting copper pipe. And enters the drying box through the return air pipe to be used as drying air.

Furthermore, the heat conducting copper pipe extends into the ventilation layer 10.2; an air spoiler is arranged in the ventilation layer 10.2.

Specifically, in this embodiment, air spoiler can slow down the speed that the air passes through ventilation layer 10.2, increases the contact realization of heat conduction copper pipe and air, improves heat exchange efficiency.

Further, the heat exchange layer 10.1 is communicated with the air return pipe 11 through a one-way valve 13.

Finally, it is noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a printing drying-machine's ventilation structure, includes the stoving case, its characterized in that: a heater is arranged on the inner side wall of the drying box; the top of the drying box is provided with an opening; an upper cover is arranged on the opening; the bottom of the upper cover is provided with a positive pressure fan; the bottom of the drying box is provided with an air outlet; a storage rack is arranged at one side of the drying box at the air outlet; the shelf covers the air outlet; the other air outlet of the air outlet is provided with an air outlet channel relative to the drying box; a negative pressure fan is arranged in the air outlet channel; the bottom of the air outlet channel is connected with a heat exchange box.

2. A ventilation structure of a printing dryer according to claim 1, wherein: the inner side of the bottom of the drying box is provided with a ring groove; the shelf is a cylindrical shelf; the bottom of the shelf is inserted into the ring groove in an embedded manner.

3. A ventilation structure of a printing dryer according to claim 2, wherein: the shelf is provided with a grid net; the commodity shelf comprises at least two layers.

4. A ventilation structure of a printing dryer according to claim 1, wherein: the upper cover is provided with a wiring hole relative to the positive pressure fan; and the side wall of the air duct is provided with a wiring hole relative to the negative pressure fan.

5. A ventilation structure of a printing dryer according to claim 1, wherein: the heat exchange box comprises a heat exchange layer and a ventilation layer; the heat exchange box is connected with the drying box through a return air pipe.

6. A ventilation structure of a printing dryer according to claim 5, wherein: a heat conducting copper pipe is arranged in the heat exchange layer; a fresh air inlet is formed in one side of the ventilation layer; and the other side of the ventilation layer is communicated with an air return pipe.

7. A ventilation structure of a printing dryer according to claim 6, wherein: the heat conduction copper pipe extends into the ventilation layer; and an air spoiler is arranged in the ventilation layer.

8. A ventilation structure of a printing dryer according to claim 7, wherein: the heat exchange layer is communicated with the air return pipe through a single valve.