CN216373828U - Four-color offset printing machine - Google Patents

Abstract

The utility model discloses a four-color offset printing machine, which comprises a machine body, wherein a printing device is arranged at the upper end of the machine body, mounting plates are fixed on two sides of the printing device, a fan cover is fixed between the mounting plates, an air pipe is arranged on the fan cover, a fan is arranged on the inner side of the air pipe, and a filter frame is connected to the air pipe in a threaded manner. According to the utility model, the odor generated during printing is conveyed to the inner side of the air pipe through the rotation of the fan, and then is absorbed, filtered and discharged through the activated carbon filter screen and the air purification particles, so that the peculiar smell is treated, and the influence on the working environment is reduced; through the printing paper of the downward butt conveying mechanism of compression roller, increase and the conveying mechanism between frictional force when can flattening printing paper, printing paper produces the displacement when avoiding carrying the printing.

Description

Four-color offset printing machine

Technical Field

The utility model relates to the technical field of printing machines, in particular to a four-color offset printing machine.

Background

The four-color offset printing press is a lithographic printing press which realizes map reproduction by using four kinds of black, medium blue, brown and green printing ink. The existing four-color printing machine comprises four color groups, and when printing is carried out through printing ink, large peculiar smell can be generated and diffused into air, so that the health of operators is not facilitated; meanwhile, the printing paper may cause position deviation when the conveying mechanism conveys and prints, and the flatness and offset printing effect are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a four-color offset printing press, which aims to solve the problem that the odor generated during printing of the printing press influences the health.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a four-color offset printing machine, includes the organism, the organism upper end is provided with printing device, printing device's both sides are fixed with the mounting panel, be fixed with the fan housing between the mounting panel, be provided with the tuber pipe on the fan housing, the fan is installed to the tuber pipe inboard, threaded connection has the filter frame on the tuber pipe, and the filter frame threaded connection conveniently filters the dismantlement of frame on the tuber pipe.

Preferably, an activated carbon filter screen is installed on the inner side of the filter frame, and harmful substances in the printing air are adsorbed by the activated carbon filter screen.

Preferably, the locating piece is installed to the symmetry on the organism, is provided with the guide way on the locating piece, and the guide way inboard slides and is provided with the movable block, rotates on the movable block and is connected with the compression roller, and the compression roller links to each other with organism conveying mechanism, and the compression roller links to each other with conveying mechanism, can flatten the paper of carrying and avoid the paper perk, increases the frictional force between paper and the conveyor simultaneously, when avoiding the printing to carry, and the paper takes place the displacement.

Preferably, a pressure spring is arranged between the moving block and the guide groove, and the moving block can be pushed to move downwards by the elastic force of the pressure spring and is abutted against the printing paper on the conveying mechanism through the press roller.

Preferably, the inside of the upper end filter frame of the active carbon filter screen is filled with air purification particles, and the air is purified by the air purification particles after being adsorbed by the active carbon filter screen, so that the air treatment effect can be improved.

Preferably, the filter frame is provided with a rotating handle, and the filter frame is conveniently detached from the air pipe by the rotating handle.

Preferably, the universal wheels are installed at the lower end of the machine body, and the universal wheels are convenient to move.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the odor generated during printing is conveyed to the inner side of the air pipe through the rotation of the fan, and then is absorbed, filtered and discharged through the activated carbon filter screen and the air purification particles, so that the peculiar smell is treated, and the influence on the working environment is reduced;

the filter frame is disassembled through the rotating handle, so that the filter material is convenient to replace;

the press roller is downwards abutted to the printing paper on the conveying mechanism, so that the friction force between the printing paper and the conveying mechanism can be increased while the printing paper is flattened, and the printing paper is prevented from displacing during conveying and printing;

the movable block can move up and down along the guide groove, so that paper with different thicknesses can be flattened and limited.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of a fan housing according to the present invention;

FIG. 3 is an enlarged view of the positioning block of the present invention.

In the figure: the device comprises a machine body 1, a positioning block 11, a guide groove 12, a moving block 13, a pressure spring 14, a compression roller 15, a universal wheel 16, a printing device 2, a mounting plate 21, a fan cover 22, an air duct 23, a filter frame 24, an active carbon filter screen 25, air purification particles 26, a fan 27 and a rotating handle 28.

Detailed Description

Referring to fig. 1 and 2, a four-color offset printing press includes a body 1, a printing device 2 is disposed at an upper end of the body 1, mounting plates 21 are fixed to two sides of the printing device 2, a fan housing 22 is fixed between the mounting plates 21, an air duct 23 is disposed on the fan housing 22, a fan 27 is mounted inside the air duct 23, the fan 27 rotates to deliver odor generated during printing to an inner side of an air inlet pipe 23, a filter frame 24 is connected to the air duct 23 by a thread, and the filter frame 24 is connected to the upper side of the air duct 23 by a thread to facilitate detachment of the filter frame 24.

Referring to fig. 2, an activated carbon filter 25 is installed inside the filter frame 24, and the activated carbon filter 25 absorbs harmful substances in the printing air.

Referring to fig. 1 and 3, positioning blocks 11 are symmetrically installed on a machine body 1, a guide groove 12 is formed in each positioning block 11, a moving block 13 is slidably arranged on the inner side of each guide groove 12, a press roller 15 is rotatably connected to each moving block 13, the press roller 15 is connected with a conveying mechanism of the machine body 1, the press roller 15 is connected with the conveying mechanism, conveyed paper can be flattened to avoid tilting of the paper, friction between the paper and the conveying device is increased, and displacement of the paper during printing and conveying is avoided.

Referring to fig. 3, a compression spring 14 is disposed between the moving block 13 and the guide groove 12, and the moving block 13 can be pushed by the elastic force of the compression spring 14 to move downward and abut against the printing paper on the conveying mechanism through the platen roller 1.

Referring to fig. 2, the inner side of the upper end filter frame 24 of the activated carbon filter screen 25 is filled with air purification particles 26, and the air is adsorbed by the activated carbon filter screen 25 and then purified by the air purification particles 26, so that the air treatment effect can be improved.

Referring to fig. 1 and 2, the filter frame 24 is provided with a rotating handle 28, and the rotating handle 28 is disposed to facilitate the detachment of the filter frame 24 from the air duct 23.

Referring to fig. 1, the lower end of the machine body 1 is provided with a universal wheel 16, and the universal wheel 16 is convenient for the machine body 1 to move.

The utility model is implemented as follows: when the odor-removing device is used, the fan 27 rotates to convey odor generated during printing to the inner side of the air pipe 23, air entering the inner side of the air pipe 23 upwards enters the inner side of the filter frame 24, is adsorbed, filtered and discharged through the activated carbon filter screen 25 and the air purification particles 26 on the inner side of the filter frame 24, so that peculiar smell is treated, the influence on the working environment is reduced, and meanwhile, the filter frame 24 can be detached from the air pipe 23 by rotating the rotating handle 28, so that the filter material is convenient to replace;

through the printing paper of compression roller 15 downward butt conveying mechanism, according to the thickness of paper, movable block 13 can move along guide way 12 to utilize the downward elasticity of pressure spring 14 to promote compression roller 15 butt printing paper and increase the frictional force between the flattening with printing paper and the conveying mechanism, printing paper produces the displacement when can avoiding carrying the printing.

Claims (7)

1. A four-color offset printing press comprising a body (1), characterized in that: organism (1) upper end is provided with printing device (2), the both sides of printing device (2) are fixed with mounting panel (21), be fixed with fan housing (22) between mounting panel (21), be provided with tuber pipe (23) on fan housing (22), fan (27) are installed to tuber pipe (23) inboard, threaded connection has filter frame (24) on tuber pipe (23).

2. A four-color offset printing press according to claim 1, wherein: and an activated carbon filter screen (25) is arranged on the inner side of the filter frame (24).

3. A four-color offset printing press according to claim 1, wherein: the machine body (1) is symmetrically provided with positioning blocks (11), the positioning blocks (11) are provided with guide grooves (12), the inner sides of the guide grooves (12) are provided with moving blocks (13) in a sliding mode, the moving blocks (13) are connected with compression rollers (15) in a rotating mode, and the compression rollers (15) are connected with a conveying mechanism of the machine body (1).

4. A four-color offset printing press according to claim 3, wherein: a pressure spring (14) is arranged between the moving block (13) and the guide groove (12).

5. A four-color offset printing press according to claim 2, wherein: and air purification particles (26) are filled inside the upper end filter frame (24) of the activated carbon filter screen (25).

6. A four-color offset printing press according to claim 1, wherein: the filter frame (24) is provided with a rotating handle (28).

7. A four-color offset printing press according to claim 1, wherein: the lower end of the machine body (1) is provided with a universal wheel (16).

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