CN207105870U - Iron-printing machine sheet material circulating heater - Google Patents

Abstract

The sheet circulation heating device of the iron printing machine is positioned and connected between the cleaning device and the pushing mechanism, including a drying seat, which includes legs and a heating box; the longitudinal sides of the heating box are provided with sheet material inlets connected with the cleaning device. The material opening and the sheet material outlet connected with the pushing mechanism; a supporting plate is set under the heating box, a centrifugal fan is set on the supporting plate, a heat transfer box is set on the centrifugal fan, and the air outlet of the centrifugal fan is sealed and connected with the heat transfer box. A heating element is installed in the heat transfer box, and a hot air pipe is installed between the heat transfer box and the heating box; a ventilation pipe is installed between the heating box and the suction port of the centrifugal fan; a cross-connection drive mechanism is provided between the heating box and the cleaning device on the longitudinal side ; There are upper and lower rows of hot air pipes with air outlets in the heating box, a row of supporting shafts are arranged between the two rows of hot air pipes, and pad wheels for sheet material transportation are positioned and sleeved on the supporting shafts. The coating printed on the metal sheet is firmer, the coating layer is harder and more durable, the ink coloring in the later stage is more glossy, the coloring is more colorful and durable, and the color adhesion is strong.

Description

Iron printing machine sheet circulation heating device

technical field

The utility model belongs to the technical field of printing equipment and relates to an iron printing machine, in particular to a sheet material circulation heating device for the iron printing machine.

Background technique

In the production of tinplate printing, the drying of coatings and inks is a complex physical and chemical reaction process. Because tinplate is insoluble in water and does not absorb solvents, generally before entering the iron printing machine for ink coating, the surface of the metal sheet is primed and dried with paint, but if the drying effect of the paint surface is not ideal, the surface will appear sticky and incomplete Curing will affect the post-printing effect. If the coating and ink are not dry enough to cause the paint film to be tender, the surface pattern will be easily changed or scratched, especially when it is used as a container material for canned food or beverages. If the food or beverage comes into direct contact with it, the taste will change before the expiration date, which will affect the health of the body.

Therefore, it is undoubtedly very important for the entire printing process if the necessary preheating treatment is performed on the metal sheet during the conveying process before printing. It can not only improve the printability of the sheet, but also improve the printing quality in the later stage .

Utility model content

The purpose of this utility model is to overcome the deficiencies or defects of the prior art, to provide a sheet material circulation heating device for iron printing machines, to improve the adhesion and stability of materials to colors and to improve the corresponding mechanical properties, so that the equipment can effectively and quickly print work to ensure product quality.

In order to achieve the above object, the utility model adopts the following technical solutions:

The sheet circulation heating device of the iron printing machine is positioned and connected between the cleaning device and the pushing mechanism, and is movably connected with the cleaning device through a bridging drive mechanism; it is characterized in that it includes a lower leg and an upper heating box; The longitudinal sides of the heating box are respectively horizontally provided with a sheet material inlet connected with the cleaning device and a sheet material outlet connected with the pushing mechanism;

A support plate fixedly connected to the leg is provided below the heating box, a centrifugal fan is provided on the support plate, and the inherent air outlet of the centrifugal fan is sealed and connected with the heat transfer box above it, and the heat transfer box extends horizontally To the longitudinal side of the heating box, heating elements are arranged in the heat transfer box, and there are interconnected hot air pipes between the heat transfer box and the heating box;

A ventilation pipe sealed and connected is provided between the heating box and the inherent air suction port of the centrifugal fan;

The other side of the heating box in the longitudinal direction is provided with a bridging drive mechanism between the cleaning device;

In the heating box, there are two rows of hot gas pipes with air holes in the upper and lower rows horizontally, and a row of supporting shafts is horizontally arranged between the upper and lower rows of hot gas pipes, and a plurality of sheet material conveying sleeves are provided on each supporting shaft. pad wheel.

The above-mentioned iron printing machine sheet material circulation heating device, wherein,

The side plates adjacent to the heating box and the heat transfer box are horizontally spaced with two rows of air inlet holes; the top of the extension part of the heat transfer box is longitudinally spaced with several single rows of air outlet holes. The air outlet hole of the heat transfer box communicates with the air inlet hole of the heating box through a hot air pipe penetrating into the heating box.

One end of the hot air pipe is an open end pierced in the hot air pipe, and the other end is a closed end positioned and connected to the other side plate of the heating box; the upper and lower rows of hot air pipes are symmetrical on the pipe wall. There are air outlets arranged at equal intervals in the axial direction that can be blown up and down;

A row of shaft holes is arranged horizontally and symmetrically between the upper and lower rows of air inlet holes on the two longitudinal side plates of the heating box. The hole positions are arranged in a staggered manner; the support shaft is horizontally moved between the shaft holes located on the two side plates of the heating box, and the pad wheels are symmetrically distributed in the center along the axial direction of the support shaft;

The bottom surface of the sheet is in close contact with the top surface of the backing wheel, enters from the feed port of the heating box, and is transported to the pushing mechanism from the discharge port of the heating box after being heated.

Compared with the prior art, the utility model sheet circulation heating device for iron printing machine has the following advantages:

After the metal sheet is preheated by the circulation heating device of the utility model, the coating printed on the metal sheet can be firmly attached to the metal sheet, the coating layer is more hard and durable, and the ink coloring in the later stage is more glossy. The coloring is more colorful and durable without deterioration. It improves the adhesion and stability of the material to the color and improves the corresponding mechanical properties, so that the machine can effectively perform fast printing operations and ensure the later printing quality.

Tests show that the utility model also has the following advantages:

1. Simple structure, reliable and stable operation, long equipment life;

2. Low energy consumption and maintenance costs, almost no need to replace parts, saving annual operating costs.

3. There is no need for independent motor drive, which solves the trouble of motor speed regulation that requires equipment speed synchronization;

4. Due to the hot air drying type, it will not cause overheating and burning of the sheet during use, and there is no need to equip a special fire protection system.

Description of drawings

Fig. 1 is a schematic diagram of the overall installation layout of the sheet material circulation heating device of the present invention;

Fig. 2 is a schematic projection structure diagram of the discharge surface of the sheet material circulation heating device involved in Fig. 1;

Fig. 3 is a schematic diagram of the left view structure of Fig. 2;

Fig. 4 is a schematic diagram of the right view structure of Fig. 2;

Fig. 5 is a schematic cross-sectional structure diagram along line B-B in Fig. 2;

Fig. 6 is a schematic diagram of the stereoscopic structure of the front projection of Fig. 2;

Fig. 7 is a schematic diagram of the rear projection three-dimensional structure of Fig. 2;

Fig. 8 is a schematic structural view of the air circuit system of the sheet material circulation heating device;

FIG. 9 is a schematic view of the right structure of FIG. 8 .

Detailed ways

Below in conjunction with the accompanying drawings, the structural features and beneficial effects of the utility model will be further described.

Please refer to Fig. 1 and Fig. 2, and refer to Fig. 3-Fig. 9 together, which shows a sheet material circulation heating device of an iron printing machine related to the utility model, which is positioned and connected between the cleaning device II and the pushing mechanism IV. And it is movably connected with the cleaning device II through the cross-connection drive mechanism K; the key technical solution it adopts is:

The sheet material circulation heating device of the iron printing machine involved in the utility model includes a lower leg 1A and an upper heating box 1B; the longitudinal sides of the heating box 1B are respectively horizontally provided with sheet material P feeding ports connected with the cleaning device II 1Bj, sheet material P outlet 1Bc connected with the pushing mechanism IV, as shown in Figures 6, 7 and 9.

The bottom of the heating box 1B is provided with a support plate 1C fixedly connected to the leg 1A. The support plate 1C is provided with a centrifugal fan 13. The inherent air inlet 13b of the centrifugal fan 13 is connected with the air inlet 4a of the heat transfer box 4 above it. Sealed connection, the heat transfer box 4 extends horizontally to the longitudinal side of the heating box 1B, the heat transfer box 4 is provided with heating elements 5, and the heat transfer box 4 and the heating box 1B are provided with interconnected hot air pipes 6; A ventilation pipe 12 that is sealed and communicated is provided between the heating box 1B and the inherent air suction port 13b of the centrifugal fan 13; the other longitudinal side of the heating box 1B is provided with a cross-connection drive mechanism K between the cleaning device II, see Fig. 1, 3,7.

In the heating box 1B, there are vertically and horizontally arranged two rows of hot gas pipes 7 with several air outlet holes 7a evenly distributed in the axial direction, and a row of supporting shafts 8 is horizontally arranged between the upper and lower rows of hot gas pipes 7, and each supporting shaft 8 is positioned A plurality of backing wheels 10 for sheet material P conveying are sheathed, referring to FIGS. 5 and 8 .

On the side plate 1B adjacent to the heating box 1B and the heat transfer box 4, two rows of air inlet holes 1Ba are arranged horizontally at intervals; the top of the extension part of the heat transfer box 4 is longitudinally arranged with several single rows of air outlet holes 4b. The air outlet hole 4b of the heating box 4 communicates with the air inlet hole 1Ba of the heating box 1B through the hot air pipe 6 penetrating into the heating box 1B.

One end of the hot air pipe 7 is an open end 7c that is installed in the hot air pipe 6, and the other end is a closed end 7b positioned and connected to the other side plate of the heating box 1B; the upper and lower rows of hot air pipes 7 are symmetrical on the pipe wall There are air outlet holes 7a arranged at equal intervals in the axial direction that can be blown up and down;

The lower part of the heating box 1B is horizontally provided with a supporting plate 1C fixedly connected to the leg 1A, and the longitudinal end of the top surface of the supporting plate 1C is provided with a centrifugal fan 13; To the heat transfer box 4 on the longitudinal outer side of the heating box 1B, a heating element 5 is arranged inside the heat transfer box 4; an air inlet 4a is provided at the connection between the bottom of the heat transfer box 4 and the centrifugal fan 13. The centrifugal fan 13 is provided with a volute-shaped shell, and the top of the volute-shaped shell is provided with a natural air outlet 13a with an opening facing upward and sealingly connected with the air inlet 4a of the heat transfer box 4 .

The bottom of the heating box 1B is provided with an exhaust hole 1Bd, and the ventilation pipe 12 that is sealed and connected with the inherent air inlet 13b of the centrifugal fan 13 is sealed on the exhaust hole 1Bd;

A row of shaft holes 1Bb is arranged horizontally and symmetrically between the upper and lower rows of air inlet holes 1Ba on the two longitudinal side plates of the heating box 1B. The holes of 1Ba are arranged in a staggered manner; the support shaft 8 is movable horizontally and penetrates between the shaft holes on the two side plates of the heating box 1B, and the backing wheels 10 are symmetrically distributed in the center along the axial direction of the support shaft 8 .

Referring to Figures 8-9, the bottom surface of the sheet P is close to the top surface of the backing wheel 10 and enters from the feed port 1Bj of the heating box 1B, and is transported to the pushing mechanism IV from the discharge port 1Bc of the heating box 1B after preheating superior.

While the previous sheet P is discharged from the discharge port 1Bc of the heating box 1B, the subsequent sheet P enters the heating box 1B from the feeding port 1Bj of the heating box 1B, thereby realizing cyclic heating.

The drying seat 1 integrally includes the lower leg 1A and the upper heating box 1B. The centrifugal fan 13 is fixed on the lower supporting plate 1C of the drying seat 1. The square opening at the top of the volute of the centrifugal fan 13 is the air outlet 13a and the heat transfer box. 4. The lower hole on the lower left side is the air inlet 4a butted, and the heating device 5 is installed in the heat transfer box 4. The four hot air pipes 6 on the upper right side of the heat transfer box 4 all penetrate into the air inlet 1Ba on the right side of the heating box 1B of the drying seat 1, and then the four hot air pipes 7 are respectively inserted into the hot air pipes 6 and fixed with screws position, in a row of 4 shaft holes 1Bb in the middle of both sides of the heating box 1B, the support shaft 8 equipped with 3 equidistantly arranged pad wheels 10 is inserted, and the position of the support shaft 8 is fixed by the bearing seats 101 at both ends of the heating box 1B , when installing the position of the bearing seat 101, it is necessary to ensure that the support shaft 8 is in a horizontal position.

The operating principle of the sheet material circulation heating device involved in the utility model is roughly as follows:

The air path system involved in the sheet preheating device involved in the utility model is shown in Figure 8-9, the centrifugal fan 13 sends cold air into the upper heat transfer box 4, and is heated by eight heating pipes 5 in the heat transfer box 4 , the heated hot air enters the upper and lower socketed hot air pipes 7 along the left rows of hot air pipes 6, and each set of hot air pipes 7 is provided with a row of outlets that can blow up and down the sheet P and are arranged equidistantly. Air hole 7a, hot air is blown out quickly and continuously from the hole. When the sheet P is transported on the multi-row supporting shafts 8 in the drying seat 1, the strong hot air discharged from the air outlet 7a of the upper and lower hot air pipes 7 is continuously blown to the sheet at high speed. The front and back surfaces of the material P make the sheet P dry quickly in a short time, while the surface of the sheet P will produce evaporating hot and humid air. The ventilation pipe 12 connected to the hole 1Bd, through the action of the centrifugal fan 13, the hot and humid air in the heating box 1B will enter the centrifugal fan 13 through the ventilation pipe 12 connected to the exhaust hole 1Bd provided at the bottom, and at the same time supplement the external The dry air enters the fan wheel, and then is discharged from the volute air outlet 13a of the centrifugal fan 13 to the heat transfer box 4 for heating, and then the hot air passes through the hot air pipe 6 and enters the hot air pipe 7, and is discharged from one side of the hot air pipe 7 In this way, the hot air can be continuously circulated.

Finally, the inherent air inlet 13b at the round mouth of the volute of the centrifugal fan 13 and the round mouth at the bottom of the drying box 1B, that is, the exhaust hole 1Bd, are socketed with an aluminum foil ventilation pipe 12. The two ends of the pipe need to be sealed firmly. There is a movable cover plate (not shown in the figure) that is closely connected with the top. After the assembly is completed, cover the cover plate so that the hot air in the drying box 1B is not easy to leak from the top and affect the drying performance, and at the same time prevent foreign matter from entering the drying box. The inside of dry box 1B poses a safety hazard.

As shown in Figure 1, during the conveying process of the sheet P, the sheets P on the stock pile are sent to the cleaning device II one by one through the feeder mechanism I, and the surface is cleaned when passing through the cleaning device II, and then conveyed from the rubber roller IIC The output sheet P is immediately brought into the heating box 1B from the feed port 1Bj of the sheet preheating device III, enters a continuous uniform heating process while being conveyed, and finally is sent out from the discharge port 1Bc of the drying 1B, Enter the pusher mechanism IV of the iron printing machine.

The above embodiments are only for illustrating the utility model, rather than limiting the utility model. Those skilled in the art can also make various transformations or modifications without departing from the spirit and scope of the utility model. Therefore, all equivalent technical solutions should also belong to the category of the present utility model, and should be defined by each claim.

Claims (3)

1. The sheet material circulation heating device of the iron printing machine is positioned and connected between the cleaning device and the pushing mechanism, and is movably connected with the cleaning device through a cross-connection driving mechanism; it is characterized in that, It consists of a lower leg and an upper heating box; the longitudinal sides of the heating box are respectively horizontally provided with a sheet material inlet connected with the cleaning device and a sheet material outlet connected with the pushing mechanism ; A support plate fixedly connected to the leg is provided below the heating box, a centrifugal fan is provided on the support plate, and the inherent air outlet of the centrifugal fan is sealed and connected with the heat transfer box above it, and the heat transfer box extends horizontally To the longitudinal side of the heating box, heating elements are arranged in the heat transfer box, and there are interconnected hot air pipes between the heat transfer box and the heating box; A ventilation pipe sealed and connected is provided between the heating box and the inherent air suction port of the centrifugal fan; The other side of the heating box in the longitudinal direction is provided with a bridging drive mechanism between the cleaning device; In the heating box, there are two rows of hot gas pipes with air holes in the upper and lower rows horizontally, and a row of supporting shafts is horizontally arranged between the upper and lower rows of hot gas pipes, and a plurality of sheet material conveying sleeves are provided on each supporting shaft. pad wheel. 2. The sheet circulation heating device of the iron printing machine according to claim 1, characterized in that, The side plate adjacent to the heating box and the heat transfer box is provided with two rows of air inlet holes at horizontal intervals; the top of the extension part of the heat transfer box is provided with several single rows of air outlet holes at longitudinal intervals. The air outlet hole of the heat transfer box communicates with the air inlet hole of the heating box through a hot air pipe penetrating into the heating box. 3. According to claim 1 or 2, said iron printing machine sheet circulation heating device, it is characterized in that, One end of the hot air pipe is an open end pierced in the hot air pipe, and the other end is a closed end positioned and connected to the other side plate of the heating box; the upper and lower rows of hot air pipes are symmetrical on the pipe wall. There are air outlets arranged at equal intervals in the axial direction that can be blown up and down; A row of shaft holes is arranged horizontally and symmetrically between the upper and lower rows of air inlet holes on the two longitudinal side plates of the heating box. The hole positions are arranged in a staggered manner; the support shaft is horizontally moved between the shaft holes located on the two side plates of the heating box, and the pad wheels are symmetrically distributed in the center along the axial direction of the support shaft; The bottom surface of the sheet is in close contact with the top surface of the backing wheel, enters from the feed port of the heating box, and is transported to the pushing mechanism from the discharge port of the heating box after being heated.