A dust removal mechanism for the internal dust plate of an offset printing machine

Abstract

This utility model provides a dust removal mechanism for the internal gray plate of an offset printing machine, belonging to the technical field of offset printing machines. The dust removal mechanism includes a blowing mechanism and a suction mechanism. The blowing mechanism is located above the internal gray plate of the offset printing machine and includes a high-pressure air pump, a nozzle, and a swing assembly. The nozzle is connected to the high-pressure air pump via an air supply pipe. The suction mechanism is located below the gray plate and includes a suction hood, a suction pipe, and a vacuum cleaner. The swing assembly includes a servo motor, a cam, and a pull rod. One end of the pull rod is movably connected to the cam, and the other end is movably connected to a movable clamp. The nozzle is movably connected to the inner wall of the offset printing machine via the movable clamp. The two sides of the air supply pipe are connected to the high-pressure air pump and the nozzle respectively via quick connectors. This utility model can solve the problem of incomplete cleaning of residue on the edges and corners of the gray plate.

Description

Technical Field

[0001] This utility model belongs to the field of offset printing machine technology, and more specifically, relates to an ash removal mechanism for the internal ash plate of an offset printing machine. Background Technology

[0002] During offset printing, some ink particles splash out and adhere to the cleaning plate during ink transfer due to factors such as printing pressure and speed. Simultaneously, fine fibers from the paper surface detach and accumulate on the cleaning plate during transport. Furthermore, the air circulation inside the offset printing machine carries dust particles from the surrounding environment, which also settle on the cleaning plate surface.

[0003] If dust accumulated on the dust removal plate is not cleaned in time, it will have a serious adverse impact on production. Residue will be pressed between the paper and the printing cylinder during the printing process, causing dirty spots on the surface of the printed matter, affecting the appearance and clarity of the print. If residue accumulates in specific areas, it will cause uneven stress on the paper during transport, resulting in printing position deviation and reducing the product yield. Therefore, it is necessary to remove dust from the surface of the dust removal plate in a timely manner. However, conventional dust removal methods can only blow dust from specific areas of the dust removal plate, making it difficult to thoroughly clean residue from the edges and corners, resulting in incomplete residue removal. Utility Model Content

[0004] In view of this, the present invention provides a gray plate removal mechanism for an offset printing machine, which can solve the problem of incomplete cleaning of residues caused by difficulty in cleaning the edges and corners of the gray plate.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a dust removal mechanism for the internal dust plate of an offset printing machine, comprising a dust blowing mechanism and a dust suction mechanism. The dust blowing mechanism is located above the dust removal plate inside the offset printing machine and includes a high-pressure air pump, a jet nozzle, and a swing assembly. The jet nozzle is connected to the high-pressure air pump through an air supply pipeline. The dust suction mechanism is located below the dust removal plate and includes a dust suction hood, a dust suction pipe, and a vacuum cleaner. The swing assembly includes a servo motor, a cam, and a pull rod. One end of the pull rod is movably connected to the cam, and the other end is movably connected to a movable clamp. The jet nozzle is movably connected to the inner wall of the offset printing machine through the movable clamp.

[0007] The technical effects of the dust removal mechanism for the internal dust plate of an offset printing machine provided by this utility model are as follows: By setting the dust blowing mechanism above the dust removal plate inside the offset printing machine, the dust removal plate can be directly cleaned of residue, allowing the high-pressure airflow to act vertically on the residue, thus improving the dust blowing effect; a high-pressure air pump is used to provide a high-pressure air source, and the air nozzle is connected to the high-pressure air pump through an air supply pipeline, realizing the precise output of high-pressure airflow, which directly acts on the residue on the dust removal plate; by setting a dust suction mechanism at the bottom and using a dust suction hood to closely fit the outer contour of the lower part of the dust removal plate, the blown-off residue can be collected to the greatest extent, preventing the residue from flying or accumulating again; and a swing component is set to drive the movement of the air nozzle.

[0008] Based on the above technical solution, the ash removal mechanism for the inner gray plate of the offset printing machine of this utility model can be further improved as follows:

[0009] The gas supply line is a corrugated flexible hose, and its two sides are connected to the high-pressure air pump and the jet nozzle respectively via quick connectors.

[0010] The benefits of adopting the above-mentioned improvement scheme are as follows: the corrugated hose can adapt to the oscillation of the jet nozzle, and the quick coupling facilitates installation and maintenance, thereby reducing equipment maintenance costs and downtime.

[0011] Furthermore, the dust hood is positioned below the dust removal plate and fits closely to the outer contour of the dust removal plate.

[0012] Furthermore, the vacuum cleaner is fixedly installed at the bottom of the offset printing machine, and the vacuum hood is connected to the vacuum cleaner through a vacuum pipe.

[0013] Furthermore, the two ends of the suction pipe are connected and fixed to the suction hood and the vacuum cleaner respectively through sealing joints.

[0014] Furthermore, the servo motor is fixedly connected to the inner wall of the offset printing machine, and the output shaft of the servo motor is fixedly connected to the cam.

[0015] Furthermore, a cam is provided on the outer surface of the cam, and one end of the pull rod is movably connected to the cam through the cam.

[0016] Furthermore, the other end of the pull rod is movably connected to the convex shaft on the movable clamp.

[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the servo motor provides power, the output shaft drives the cam to rotate, the cam shaft on the cam causes the pull rod to move, and then drives the movable clamp and the air nozzle to swing. This design allows the air nozzle to blow dust off the cleaning plate from multiple angles and directions, solving the problem of the limited cleaning range of the traditional fixed air nozzle and greatly improving the comprehensiveness of residue cleaning.

[0018] Furthermore, the movable clamp includes a ring clamp and a movable shaft, and the jet nozzle is fixedly installed in the groove corresponding to the inner wall of the ring clamp.

[0019] Furthermore, the high-pressure air pump is mounted and fixed to the side wall of the offset printing machine via shock-absorbing pads and a base, and the air supply pipeline is arranged along the edge of the internal frame of the offset printing machine and fixed by pipe clamps.

[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by installing the high-pressure air pump on the side wall of the offset printing machine through the shock-absorbing pad and the machine base, the transmission of vibration during operation can be effectively reduced, and a stable air supply can be ensured.

[0021] Compared with existing technologies, the beneficial effects of the dust removal mechanism for the internal dust plate of an offset printing machine provided by this utility model are as follows: By setting the dust blowing mechanism above the dust removal plate inside the offset printing machine, the dust removal plate can be directly cleaned of residues, allowing high-pressure airflow to act vertically on the residues, thus improving the dust blowing effect; a high-pressure air pump is used to provide a high-pressure air source, and the air nozzle is connected to the high-pressure air pump through an air supply pipeline, achieving precise output of high-pressure airflow that directly acts on the residues on the dust removal plate; by setting a dust suction mechanism at the bottom and using a dust suction hood that fits tightly against the lower outer contour of the dust removal plate, the blown-off residues can be collected to the greatest extent. To prevent residue from being scattered or accumulating again, a swing assembly is used to move the air nozzle. The corrugated hose is designed to accommodate the swing of the air nozzle, and the quick-connect fittings facilitate installation and maintenance, reducing equipment maintenance costs and downtime. Powered by a servo motor, the output shaft drives the cam to rotate, and the cam's cam shaft causes the pull rod to move, which in turn drives the movable clamp and the air nozzle to swing. This design allows the air nozzle to blow ash from the cleaning plate at multiple angles and directions, solving the problem of the limited cleaning range of traditional fixed air nozzles and greatly improving the comprehensiveness of residue cleaning. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of a dust removal mechanism for an internal gray plate in an offset printing machine;

[0024] Figure 2 This is a partial schematic diagram of the air nozzle and movable clamp working together in the ash removal mechanism of the gray plate inside an offset printing machine;

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 10. Dust blowing mechanism; 101. High-pressure air pump; 102. Air nozzle; 103. Swing assembly; 1031. Servo motor; 1032. Cam; 1033. Pull rod; 11. Dust suction mechanism; 111. Dust suction hood; 112. Dust suction pipe; 113. Vacuum cleaner; 12. Movable clamp; 121. Ring clamp; 122. Movable shaft. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] like Figure 1 Figure 2 shows an embodiment of the dust removal mechanism for the internal dust plate of an offset printing machine provided by this utility model. In this embodiment, it includes a dust blowing mechanism 10 and a dust suction mechanism 11. The dust blowing mechanism 10 is located above the dust removal plate inside the offset printing machine and includes a high-pressure air pump 101, a nozzle 102, and a swing assembly 103. The nozzle 102 is connected to the high-pressure air pump 101 through an air supply pipeline. The dust suction mechanism 11 is located below the dust removal plate and includes a dust suction hood 111, a dust suction pipe 112, and a vacuum cleaner 113. The swing assembly 103 includes a servo motor 1031, a cam 1032, and a pull rod 1033. One end of the pull rod 1033 is movably connected to the cam 1032, and the other end is movably connected to a movable clamp 12. The nozzle 102 is movably connected to the inner wall of the offset printing machine through the movable clamp 12.

[0029] When the dust-blowing mechanism is activated, the high-pressure air pump starts working, compressing air and delivering it to the nozzle through a corrugated hose. Simultaneously, the servo motor also starts, its output shaft driving a fixedly connected cam to rotate. As the cam rotates, a cam shaft on the cam pushes a pull rod in a reciprocating motion. Since the other end of the pull rod is movably connected to a cam shaft on a movable clamp, which in turn fixes the nozzle, the reciprocating motion of the pull rod causes the nozzle to swing within a certain range. Thus, the high-pressure airflow ejected from the nozzle is no longer confined to a single direction but can act on the surface of the dust-blowing plate from multiple angles and directions, blowing off the residue adhering to the dust-blowing plate. Simultaneously with the dust-blowing mechanism, the vacuuming mechanism also begins operation. The vacuum cleaner starts, generating suction, which is transmitted through the suction pipe to a vacuum hood that fits tightly against the outer contour of the dust-blowing plate. The blown-off residue, within the collection area of ​​the vacuum hood, is drawn into the dust collection box inside the vacuum cleaner by the suction force of the vacuum cleaner.

[0030] In the above technical solution, the gas pipeline is a corrugated hose, and the two sides of the gas pipeline are connected to the high-pressure air pump 101 and the jet nozzle 102 respectively through quick connectors.

[0031] Furthermore, in the above technical solution, the dust hood 111 is located below the dust removal plate and fits closely to the outer contour of the dust removal plate.

[0032] Furthermore, in the above technical solution, the vacuum cleaner 113 is fixedly installed at the bottom of the offset printing machine, and the vacuum hood 111 is connected to the vacuum cleaner 113 through the vacuum pipe 112.

[0033] Furthermore, in the above technical solution, the two ends of the suction pipe 112 are connected and fixed to the suction hood 111 and the vacuum cleaner 113 respectively through sealing joints.

[0034] Furthermore, in the above technical solution, the servo motor 1031 is fixedly connected to the inner wall of the offset printing machine, and the output shaft of the servo motor 1031 is fixedly connected to the cam 1032.

[0035] Furthermore, in the above technical solution, a cam shaft is provided on the outer surface of the cam 1032, and one end of the pull rod 1033 is movably connected to the cam 1032 through the cam shaft.

[0036] Furthermore, in the above technical solution, the other end of the pull rod 1033 is movably connected to the convex shaft on the movable clamp 12.

[0037] Furthermore, in the above technical solution, the movable clamp 12 includes a ring clamp 121 and a movable shaft 122, and the jet nozzle 102 is fixedly installed in the groove corresponding to the inner wall of the ring clamp 121.

[0038] Furthermore, in the above technical solution, the high-pressure air pump 101 is fixed to the side wall of the offset printing machine by means of shock-absorbing pads and machine base, and the air supply pipeline is arranged along the edge of the internal frame of the offset printing machine and fixed by pipe clamps.

[0039] Specifically, the principle of this invention is as follows: When the dust-blowing mechanism is activated, the high-pressure air pump starts working, compressing air and delivering it to the nozzle through an air supply pipeline composed of corrugated hoses. At the same time, the servo motor also starts synchronously, and its output shaft drives the cam fixedly connected to it to start rotating. As the cam rotates, the cam shaft on the cam pushes the pull rod to reciprocate. Since the other end of the pull rod is movably connected to the cam shaft on the movable clamp, and the movable clamp fixes the nozzle, the reciprocating motion of the pull rod causes the nozzle to swing within a certain range. In this way, the high-pressure airflow ejected from the nozzle is no longer limited to a single direction, but can act on the surface of the dust-cleaning plate at multiple angles and directions, blowing off the residue attached to the dust-cleaning plate; at the same time as the dust-blowing mechanism is working, the vacuuming mechanism also starts operating. The vacuum cleaner starts, generating suction, which is transmitted through the vacuum pipe to the vacuum hood that fits tightly against the outer contour of the bottom of the dust-cleaning plate. The blown-off residue is within the collection range of the vacuum hood, and under the action of the vacuum cleaner's suction, it is sucked into the dust collection box inside the vacuum cleaner along the vacuum pipe.

Claims

1. A mechanism for removing a blanket from a blanket cylinder in an offset printing press, characterized in that The offset printing press includes a dust blowing mechanism (10) and a dust suction mechanism (11). The dust blowing mechanism (10) is located above the dust removal plate inside the offset printing press and includes a high-pressure air pump (101), a nozzle (102), and a swing assembly (103). The nozzle (102) is connected to the high-pressure air pump (101) through an air supply pipeline. The dust suction mechanism (11) is located below the dust removal plate and includes a dust suction hood (111), a dust suction pipe (112), and a vacuum cleaner (113). The swing assembly (103) includes a servo motor (1031), a cam (1032), and a pull rod (1033). One end of the pull rod (1033) is movably connected to the cam (1032), and the other end is movably connected to a movable clamp (12). The nozzle (102) is movably connected to the inner wall of the offset printing press through the movable clamp (12).

2. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 1, characterized in that, The gas supply line is a corrugated hose, and both sides of the gas supply line are connected to the high-pressure air pump (101) and the jet nozzle (102) respectively via quick connectors.

3. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 2, characterized in that, The dust hood (111) is located below the dust removal plate and fits closely to the outer contour of the dust removal plate.

4. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 3, wherein The vacuum cleaner (113) is fixedly installed at the bottom of the offset printing machine, and the vacuum hood (111) is connected to the vacuum cleaner (113) through the vacuum pipe (112).

5. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 4, wherein The two ends of the suction pipe (112) are connected and fixed to the suction hood (111) and the vacuum cleaner (113) respectively through sealing joints.

6. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 5, wherein The servo motor (1031) is fixedly connected to the inner wall of the offset printing machine, and the output shaft of the servo motor (1031) is fixedly connected to the cam (1032).

7. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 6, characterized in that, The outer surface of the cam (1032) is provided with a convex shaft, and one end of the pull rod (1033) is movably connected to the cam (1032) through the convex shaft.

8. The ash removal mechanism for the internal ash plate of an offset printing machine according to claim 7, characterized in that, The other end of the pull rod (1033) is movably connected to the convex shaft on the movable clamp (12).

9. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 8, characterized in that, The movable clamp (12) includes a ring clamp (121) and a movable shaft (122), and the jet nozzle (102) is fixedly installed in the groove corresponding to the inner wall of the ring clamp (121).

10. The mechanism for removing the dampening solution from the dampening solution- containing plate in the offset printing machine according to claim 9, wherein The high-pressure air pump (101) is mounted and fixed to the side wall of the offset printing machine by means of shock-absorbing pads and machine base. The air supply pipeline is arranged along the edge of the internal frame of the offset printing machine and fixed by pipe clamps.

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