Detachable paper conveying mechanism of offset press

Abstract

The utility model relates to the technical field of paper conveying mechanisms, in particular to a detachable paper conveying mechanism of an offset press. The conveying device comprises a workbench, a rotating roller rotationally connected through a bearing is arranged between the two ends of the workbench, mounting wheels are fixedly connected to the arc face of the rotating roller, a conveying belt is arranged between the mounting wheels, a first motor is installed on the front face of the workbench and controls the rotating roller to rotate, and the first motor is connected with a second motor. Through the arrangement of the cleaning assembly, when the surface of paper needs to be cleaned, the paper is adsorbed through a micro electric vacuum suction cup, a second motor drives the micro electric vacuum suction cup to move, the paper is moved to a conveying belt, then the conveying belt moves, and meanwhile a cleaning sponge in a mounting box makes contact with the paper to clean the upper surface of the paper; when double-sided offset printing is carried out on paper, a cleaning assembly can be additionally arranged below the paper, so that the paper is better cleaned, and the effect of cleaning the surface of the paper is achieved as far as possible.

Description

Technical Field

[0001] This utility model relates to the field of paper feeding mechanism technology, and in particular to a detachable paper feeding mechanism for an offset printing machine. Background Technology

[0002] The paper transfer mechanism is used to transport paper to the offset printing machine for offset printing. It consists of a worktable, rotating rollers, mounting wheels, a conveyor belt, a motor unit, a chute, a lead screw, a moving plate, a lifting platform, a cylinder assembly, baffles, and a miniature electric vacuum suction cup. When using the paper transfer mechanism, the worker places the paper between the two baffles on the lifting platform. The controller activates the first cylinder, lifting the platform and raising it. Then, the second cylinder activates the miniature electric vacuum suction cup, causing it to descend and adhere to the paper, making the paper surface smooth. Next, the second motor is activated. The second motor is fixed to the lead screw via a reducer and coupling, causing the lead screw to rotate. This moves the moving plate in the chute, moving the paper. The first motor is then activated. The first motor is fixed to the rotating roller via a reducer and coupling, causing the rotating roller to rotate. This rotates the conveyor belt in the mounting groove on the mounting wheel, bringing the conveyor belt into contact with the paper and moving it between the blanket cylinder and the impression cylinder of the offset printing machine, thus pressing ink onto the paper surface.

[0003] The inventors discovered in their daily work that during the paper feeding mechanism, some paper scraps and dust remain on the paper surface due to the paper production process. The paper feeding mechanism simply conveys the paper between the blanket cylinder and the impression cylinder of the offset printing machine for offset printing. This may cause the residual paper scraps to affect the offset printing effect. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in actual use, some paper scraps and dust remain on the surface of the paper during the paper production process, and the paper conveying mechanism simply conveys the paper between the blanket cylinder and the impression cylinder of the offset printing machine for offset printing. This may result in the residual paper scraps affecting the offset printing effect. Therefore, a detachable paper conveying mechanism for offset printing machines is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable paper feeding mechanism for an offset printing machine, comprising a worktable, a rotating roller rotatably connected to both ends of the worktable via bearings, mounting wheels fixedly connected to the arc surface of the rotating rollers, a conveyor belt between multiple mounting wheels, a first motor mounted on the front of the worktable, the first motor controlling the rotation of the rotating rollers, a first cylinder mounted on the bottom of the inner wall of the worktable, a lifting platform fixedly connected to the output end of the first cylinder, baffles fixedly connected to both sides of the upper end of the lifting platform, a cleaning assembly between the two ends of the worktable, sliding grooves formed on both sides of the worktable, lead screws rotatably connected to the inner wall of the sliding grooves via bearings, a moving plate slidably connected to the inner wall of the sliding grooves, a second cylinder mounted on the lower end of the moving plate, a detachable assembly and a miniature electric vacuum suction cup mounted on the output end of the second cylinder, the cleaning assembly comprising a mounting box disposed between the two ends of the worktable, a cleaning sponge slidably connected to the inner wall of the mounting box.

[0006] The effect achieved by the above components is as follows: by setting up the cleaning component, when it is necessary to clean the paper surface, the paper is adsorbed by the micro electric vacuum suction cup and the micro electric vacuum suction cup is moved by the second motor, so that the paper is moved to the conveyor belt and then moved by the conveyor belt. At the same time, the cleaning sponge in the mounting box contacts the paper to clean the upper surface of the paper. When double-sided offset printing on paper, a cleaning component can be added under the paper to better clean the paper and thus achieve the effect of cleaning the paper surface as much as possible.

[0007] Preferably, a first spring is fixedly connected to the upper end of the cleaning sponge, and the other end of the first spring is fixed to the mounting box.

[0008] The effect achieved by the above components is as follows: by setting the first spring, the cleaning sponge comes into contact with the paper, so that the first spring is in a compressed state, and its reverse force makes the cleaning sponge fully contact with the paper.

[0009] Preferably, an arc-shaped plate is fixedly connected to one side of the cleaning sponge, and mounting plates are fixedly connected to both sides of the workbench.

[0010] The effect achieved by the above components is to assist the paper in moving under the cleaning sponge by setting up an arc-shaped plate.

[0011] Preferably, a screw is fixedly connected to the upper end of the mounting box, the screw passes through the mounting plate, and a nut is threaded onto the arc surface of the screw.

[0012] The effect achieved by the above components is as follows: by tightening the nut to separate it from the screw, and then by dragging the mounting box to separate the screw from the mounting plate, the cleaning sponge can be cleaned.

[0013] Preferably, the detachable component includes a fixing ring fixedly connected to the upper end of the miniature electric vacuum suction cup. The inner wall of the fixing ring has a circular groove, and a positioning pin is slidably connected to the inner wall of the circular groove. The positioning pin is inserted into the output end of the second cylinder.

[0014] The effect achieved by the above components is as follows: when it is necessary to disassemble the miniature electric vacuum suction cup for maintenance, the positioning pin is fully retracted into the circular groove by pulling the mechanism, so that it is completely separated from the second cylinder. Then, the miniature electric vacuum suction cup is dragged to separate the fixing ring from the second cylinder, thereby disassembling the miniature electric vacuum suction cup.

[0015] Preferably, a pull rope is fixedly connected to the right end of the positioning pin, and the pull rope passes through the fixing ring.

[0016] The effect achieved by the above components is that pulling the pull rope causes the positioning pin to retract completely into the circular groove.

[0017] Preferably, a second spring is fixedly connected to the right end of the positioning pin, and the other end of the second spring is fixed to the fixing ring.

[0018] The effect achieved by the above components is as follows: by setting the second spring, pulling the pull rope causes the positioning pin to retract completely into the circular groove, which compresses the second spring, loosens the pull rope, and causes the second spring to reset with the positioning pin.

[0019] Preferably, a protective sleeve is fixedly connected to the surface of the pull rope, and the protective sleeve is a woven sleeve.

[0020] The effect achieved by the above-mentioned components is to reduce the wear of the fixing ring on the pull rope by setting up a protective sleeve.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by setting up a cleaning component, when it is necessary to clean the paper surface, the paper is adsorbed by a micro electric vacuum suction cup and moved by a second motor driven by the micro electric vacuum suction cup, so that the paper is moved to the conveyor belt. Then, the conveyor belt moves the paper, and at the same time, the cleaning sponge in the mounting box contacts the paper to clean the upper surface of the paper. When double-sided offset printing, a cleaning component can be added under the paper to better clean the paper and achieve the effect of cleaning the paper surface as much as possible. This solves the problem that some paper scraps and dust remain on the paper surface during the paper production process, and the paper feeding mechanism simply conveys the paper between the blanket cylinder and the impression cylinder of the offset printing machine for offset printing, which may cause the residual paper scraps to affect the offset printing effect. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the cross-section of the cleaning component of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the detachable component of this utility model after an explosion.

[0027] Legend: 1. Workbench; 2. Cleaning assembly; 3. Detachable assembly; 4. Rotating roller; 5. Mounting wheel; 6. Conveyor belt; 7. First motor; 8. Lifting platform; 9. Baffle; 10. First cylinder; 11. Slide groove; 12. Lead screw; 13. Moving plate; 14. Second cylinder; 15. Miniature electric vacuum suction cup; 21. Mounting box; 22. Cleaning sponge; 23. First spring; 24. Arc plate; 25. Mounting plate; 26. Screw; 27. Nut; 31. Retaining ring; 32. Circular groove; 33. Positioning pin; 34. Pull rope; 35. Second spring. Detailed Implementation

[0028] Reference Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a detachable paper feeding mechanism for an offset printing machine includes a worktable 1. A rotating roller 4 is rotatably connected between the two ends of the worktable 1 via bearings. Mounting wheels 5 are fixedly connected to the arc surface of the rotating roller 4. A conveyor belt 6 is arranged between multiple mounting wheels 5. A first motor 7 is installed on the front of the worktable 1, and the first motor 7 controls the rotation of the rotating roller 4. A first cylinder 10 is installed at the bottom of the inner wall of the worktable 1. A lifting platform 8 is fixedly connected to the output end of the first cylinder 10. Baffles 9 are fixedly connected to both sides of the upper end of the lifting platform 8. A cleaning component 2 is arranged between the two ends of the worktable 1. Slide grooves 11 are opened on both sides of the worktable 1. A lead screw 12 is rotatably connected to the inner wall of the slide groove 11 via bearings. A moving plate 13 is slidably connected to the inner wall of the slide groove 11. A second cylinder 14 is installed at the lower end of the moving plate 13. A detachable component 3 and a miniature electric vacuum suction cup 15 are arranged at the output end of the second cylinder 14.

[0029] The following section will explain the specific settings and functions of cleaning component 2 and removable component 3.

[0030] Reference Figure 3As shown, in this embodiment: the cleaning component 2 includes a mounting box 21 disposed between the two ends of the workbench 1. A cleaning sponge 22 is slidably connected to the inner wall of the mounting box 21. By setting the cleaning component 2, when it is necessary to clean the paper surface, the paper is adsorbed by a micro electric vacuum suction cup 15 and the micro electric vacuum suction cup 15 is moved by a second motor, so that the paper is moved to the conveyor belt 6 and then moved by the conveyor belt 6. At the same time, the cleaning sponge 22 in the mounting box 21 contacts the paper and cleans the upper surface of the paper. When double-sided offset printing is performed on the paper, the cleaning component 2 can be added below the paper to better clean the paper and thus achieve the effect of cleaning the paper surface as much as possible. A first spring 23 is fixedly connected to the upper end of the cleaning sponge 22. The other end of 3 is fixed to the mounting box 21. By setting the first spring 23, the cleaning sponge 22 comes into contact with the paper, so that the first spring 23 is in a compressed state. Its reverse force pushes the cleaning sponge 22 into full contact with the paper. An arc plate 24 is fixedly connected to one side of the cleaning sponge 22, and mounting plates 25 are fixedly connected to both sides of the worktable 1. By setting the arc plate 24, the paper is assisted to move under the cleaning sponge 22. A screw 26 is fixedly connected to the upper end of the mounting box 21. The screw 26 passes through the mounting plate 25. A nut 27 is threadedly connected to the arc surface of the screw 26. Tightening the nut 27 separates it from the screw 26. Then dragging the mounting box 21 separates the screw 26 from the mounting plate 25, so that the cleaning sponge 22 can be cleaned.

[0031] Reference Figure 4 As shown in this embodiment: the detachable component 3 includes a fixing ring 31 fixedly connected to the upper end of the miniature electric vacuum suction cup 15. A circular groove 32 is formed on the inner wall of the fixing ring 31, and a positioning pin 33 is slidably connected to the inner wall of the circular groove 32. The positioning pin 33 is inserted into the output end of the second cylinder 14. When the miniature electric vacuum suction cup 15 needs to be disassembled for maintenance, the positioning pin 33 is completely retracted into the circular groove 32 by a pulling mechanism, thus completely separating it from the second cylinder 14. Then, the miniature electric vacuum suction cup 15 is dragged, causing the fixing ring 31 to separate from the second cylinder 14, thereby disassembling the miniature electric vacuum suction cup 15. A pull rope 34 is fixedly connected to the right end, and the pull rope 34 passes through the fixing ring 31. Pulling the pull rope 34 causes the positioning pin 33 to retract completely into the circular groove 32. A second spring 35 is fixedly connected to the right end of the positioning pin 33. The other end of the second spring 35 is fixed to the fixing ring 31. By setting the second spring 35, pulling the pull rope 34 causes the positioning pin 33 to retract completely into the circular groove 32, which compresses the second spring 35, loosens the pull rope 34, and causes the second spring 35 to reset with the positioning pin 33. A protective sleeve is fixedly connected to the surface of the pull rope 34. The protective sleeve is a braided sleeve. By setting the protective sleeve, the wear of the fixing ring 31 on the pull rope 34 is reduced.

[0032] Working principle:

[0033] When using the paper feeding mechanism, the worker places the paper between the two baffles 9 on the lifting platform 8. The controller activates the first cylinder 10, lifting the lifting platform 8 and raising it. Then, the second cylinder 14 activates the miniature electric vacuum suction cup 15 (model YSW-E50 from Jiecheng Intelligent) to descend and adhere to the paper. The suction cup 15 then adheres to the paper, making its surface smooth. Next, the second motor is activated. The second motor is fixed to the lead screw 12 via a reducer and coupling, causing the lead screw 12 to rotate. This moves the moving plate 13 within the slide groove 11, allowing the paper to... As the paper moves, the first motor 7 is activated. The first motor 7 is fixed to the rotating roller 4 via a reducer and coupling, causing the rotating roller 4 to rotate. This causes the conveyor belt 6 in the mounting groove on the mounting wheel 5 to rotate, thus bringing the conveyor belt 6 into contact with the paper and moving it between the blanket cylinder and impression cylinder of the offset printing press. Ink is then applied to the paper surface. When cleaning the paper surface is required, the paper is attracted by a miniature electric vacuum suction cup 15, which is moved by a second motor, moving the paper to the conveyor belt 6. The conveyor belt 6 then moves the paper, while the cleaning sponge 22 in the mounting box 21 contacts the paper. For surface cleaning of paper, during double-sided offset printing, a cleaning component 2 can be added below the paper to better clean the paper and achieve the best possible surface cleaning. A first spring 23 is installed, and the cleaning sponge 22 contacts the paper, compressing the spring 23. Its reverse force pushes the cleaning sponge 22 into full contact with the paper. An arc-shaped plate 24 assists in moving the paper below the cleaning sponge 22. Tightening the nut 27 with a wrench separates it from the screw 26. Then, dragging the mounting box 21 separates the screw 26 from the mounting plate 25, allowing the cleaning sponge 22 to be cleaned. When the miniature electric vacuum suction cup 15 needs to be disassembled for maintenance, pull the pull rope 34 to make the positioning pin 33 fully retract into the circular groove 32, so that it is completely separated from the second cylinder 14. Then drag the miniature electric vacuum suction cup 15 to separate the fixing ring 31 from the second cylinder 14, thereby disassembling the miniature electric vacuum suction cup 15. By setting the second spring 35, pull the pull rope 34 to make the positioning pin 33 fully retract into the circular groove 32, so that the second spring 35 is compressed, loosening the pull rope 34, so that the second spring 35 and the positioning pin 33 return to their original positions. By setting the protective sleeve, the wear of the fixing ring 31 on the pull rope 34 is reduced.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A detachable paper transfer mechanism of a flexographic printing machine, comprising a table (1), characterized in that: The both ends of table (1) are provided with rotating roller (4) rotating connection by bearing, the arc surface of rotating roller (4) is fixedly connected with mounting wheel (5), a plurality of mounting wheel (5) are provided with conveying belt (6) between, the front of table (1) is installed with first motor (7), first motor (7) controls rotating roller (4) rotation, the inner wall bottom of table (1) is installed with first cylinder (10), the output end of first cylinder (10) is fixedly connected with lifting platform (8), the both sides of the upper end of lifting platform (8) are fixedly connected with baffle (9), the both ends of table (1) are provided with cleaning assembly (2), the both sides of table (1) are provided with sliding slot (11), the inner wall of sliding slot (11) is provided with screw rod (12) rotating connection by bearing, the inner wall of sliding slot (11) is slidably connected with moving plate (13), the lower end of moving plate (13) is installed with second cylinder (14), the output end of second cylinder (14) is provided with detachable assembly (3) and micro electric vacuum chuck (15), cleaning assembly (2) includes installation box (21) being arranged between the both ends of table (1), the inner wall of installation box (21) is slidably connected with cleaning sponge (22).

2. A detachable paper transfer mechanism of a blanket printing machine according to claim 1, characterized in that: The upper end of cleaning sponge (22) is fixedly connected with first spring (23), the other end of first spring (23) is fixed with installation box (21).

3. A detachable paper transfer mechanism of a blanket printing machine according to claim 2, characterized in that: One side of cleaning sponge (22) is fixedly connected with arc plate (24), the both sides of table (1) are fixedly connected with mounting plate (25).

4. A detachable paper transfer mechanism of a blanket printing machine according to claim 3, characterized in that: The upper end of installation box (21) is fixedly connected with screw rod (26), screw rod (26) penetrates mounting plate (25), the arc surface of screw rod (26) is screw connected with nut (27).

5. A detachable paper transfer mechanism of a blanket printing machine according to claim 4, characterized in that: The detachable assembly (3) includes a fixed ring (31) fixedly connected to the upper end of the micro electric vacuum chuck (15), a circular groove (32) is formed in the inner wall of the fixed ring (31), a positioning pin (33) is slidably connected to the inner wall of the circular groove (32), and the positioning pin (33) is inserted into the output end of the second cylinder (14).

6. A detachable paper transfer mechanism of a blanket printing machine according to claim 5, characterized in that: The right end of the positioning pin (33) is fixedly connected with a pull rope (34), and the pull rope (34) penetrates the fixed ring (31).

7. A detachable paper transfer mechanism of a blanket printing machine according to claim 6, characterized in that: The right end of the positioning pin (33) is fixedly connected with a second spring (35), and the other end of the second spring (35) is fixed with the fixed ring (31).

8. A detachable paper transfer mechanism of a blanket printing machine according to claim 7, characterized in that: The surface of the pull rope (34) is fixedly connected with a protective sleeve, and the protective sleeve is a woven sleeve.

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