Centering type paper separating mechanism

Abstract

The invention provides a centering type paper separating mechanism which comprises a cam, a roller and a first swing rod, the roller is installed on one side of the first swing rod, and the cam is installed on a rack and used for driving the roller to move; one end of a swing rod rotates around a first rotating shaft, the other end of the first swing rod is movably connected with the eccentric shaft, the eccentric shaft is located on one side of the first swing rod, one end of the connecting rod is located on the other side of the first swing rod, the other end of the connecting rod is connected with the third shaft, the third shaft is connected with one end of the second swing rod, and the other end of the second swing rod is connected with the second rotating shaft. The other end of the second swing rod is connected with the second shaft, and a paper separating suction nozzle component is installed on the third shaft. Through the reasonable structural design, it is guaranteed that the whole mechanism is evenly stressed, abrasion is reduced, and the service life is prolonged; the paper separation suction nozzle component is optimized, so that the paper separation suction nozzle component meets the requirements for paper adsorption under different working conditions, meanwhile, the paper separation suction nozzle component is limited through the clamping jaw, faults caused by accidents are prevented, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field of printing and packaging machinery, and particularly relates to a centering paper separation mechanism in a sheet feeder head (feeder head). Background Art

[0002] The sheet feeder is a commonly used feeding mechanism in single-sheet printing and packaging equipment (such as offset printing machines, laminating machines, etc.). The sheet feeder head is the core component of the sheet feeder, and its function is to accurately separate the top sheet of the paper stack and convey it to the next station. There is a paper separation mechanism in the sheet feeder head, which moves up and down. There are suction nozzles in the mechanism, which are used to suck up the top sheet of paper and transfer it to the paper feeding suction nozzle. The existing paper separation mechanism has the following three disadvantages: 1. The force on the mechanism is uneven and it is easy to wear; 2. The adjustment of the paper separation suction nozzle cannot be adjusted inwards or outwards, which is not conducive to separating thin paper; 3. The single claw limit of the paper separation suction nozzle is not reliable enough, and there is a risk of the suction cylinder falling off. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a centering paper separation mechanism, and the following technical solutions are adopted: A centering paper separation mechanism includes a cam, a roller and a first swing rod. The roller is installed on one side of the first swing rod, and the cam is installed on the frame for driving the roller to move. One end of the first swing rod rotates around a first rotation axis, and the other end of the first swing rod is movably connected to an eccentric shaft. The eccentric shaft is located on one side of the first swing rod. One end of the connecting rod is located on the other side of the first swing rod, and the other end of the connecting rod is connected to a third shaft. The third shaft is connected to one end of a second swing rod, and the other end of the second swing rod is connected to the second shaft. A paper separation suction nozzle component is installed on the third shaft. Through the reasonable setting of the first swing rod, the connecting rod, the second swing rod and the eccentric shaft, both the stability of the mechanism and the left-right balance of the overall mechanism can be ensured, and the uniform force can be guaranteed.

[0004] Furthermore, the paper separation suction nozzle component is fixed on the third shaft through a mounting block. There is a mounting hole in the middle of the mounting block, and the third shaft passes through the mounting hole. The mounting block is of a U-shaped structure, and the upper end of the U-shaped structure of the mounting block is connected by screws, so as to lock the paper separation suction nozzle component on the third shaft. Through this design, the orientation of the paper separation suction nozzle can be adjusted to adapt to the requirements under different working conditions.

[0005] Furthermore, a plurality of paper separation suction nozzle components are symmetrically installed on both sides of the connecting rod along the third shaft, which ensures the stability of the overall mechanism. At the same time, through the coordinated use of a plurality of paper separation suction nozzle components, the paper can be better adsorbed and the production efficiency can be improved.

[0006] Further, the sheet separating suction nozzle component includes a suction cylinder and a suction nozzle. A claw is provided at the upper end of the suction cylinder to limit it, and the suction nozzle is installed at the lower end of the suction cylinder. The suction cylinder is limited and fixed by a clamping claw to prevent it from falling when subjected to accidental impact.

[0007] The advantages of the present invention are as follows: Through the reasonable structural design of the first swing rod, connecting rod, second swing rod, eccentric shaft, etc., the overall mechanism is ensured to be uniformly stressed, reducing wear and extending the service life. The sheet separating suction nozzle component is optimized to meet the requirements for adsorbing sheets under different working conditions. At the same time, the clamping claw is used to limit and fix it to prevent failures caused by accidents and improve production efficiency. Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0009] Figure 1 It is a perspective view of a centered sheet separating mechanism according to the present invention.

[0010] Figure 2 It is a front view of a centered sheet separating mechanism according to the present invention.

[0011] In the drawings, the list of components represented by each reference numeral is as follows: 1. First rotating shaft, 2. Roller, 3. First swing rod, 4. Cam, 5. Eccentric shaft, 6. Connecting rod, 7. Second swing rod, 8. Sheet separating suction nozzle component, 9. Second shaft, 10. Third shaft, 11. Screw, 12. Claw, 13. Suction cylinder, 14. Suction nozzle. Detailed Embodiments

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0013] As Figure 1 and Figure 2As shown in the figure, a centering paper separation mechanism according to this embodiment includes a cam 4, a roller 2, and a first swing rod 3. The cam 4 is fixed on the frame. The roller 2 is installed on one side of the first swing rod 3 through bolts. One end of the first swing rod 3 is connected to the first rotating shaft 1, and the other end is connected to one end of the eccentric shaft 5. The eccentric shaft 5 and the upper end of the connecting rod 6 are respectively on both sides of the first swing rod 3. The connecting rod 6 and the roller 2 are on the same side of the first swing rod 3. The lower end of the connecting rod 6 is connected to the third shaft 10. Located at the middle position of the third shaft 10, a plurality of paper separating suction nozzle 14 components and a second swing rod 7 are symmetrically arranged along the left and right sides of the connecting rod 6. The other end of the second swing rod 7 is connected to the second shaft 9. Among them, the first swing rod 3 and the connecting rod 6 are respectively connected to the eccentric shaft 5 by shaft-hole fit, and the eccentric positions of the first swing rod 3 and the connecting rod 6 can be adjusted by rotating the eccentric shaft 5; the connecting rod 6 and the third shaft 10 are connected and fixed by shaft-hole clamping. The second swing rod 7 is symmetrically installed at both ends of the connecting rod 6 and is in shaft-hole fit with the third shaft 10. The second swing rod 7 and the second shaft 9 are clamped and fixed as a whole. The second shaft 9 can rotate on the frame; at this time, the first swing rod 3, the connecting rod 6, and the second swing rod 7 form a planar four-bar linkage with the first rotating shaft 1 and the second shaft 9 as the rotation fulcrums.

[0014] Each paper separating suction nozzle 14 component is fixed on the third shaft 10 through a mounting block. The mounting block is integrally of a U-shaped structure with a mounting hole dug in the middle for the third shaft 10 to pass through. The upper end of the U-shaped structure is locked by a bolt or a screw 11. By adjusting the screw 11, the paper separating suction nozzle 14 component can be loosened or locked on the third shaft 10, so as to achieve the purpose of adjusting its direction to meet the requirements of various working conditions, that is, when the paper is uneven, the direction of the paper separating suction nozzle 14 component can be adjusted to make it better adsorb the paper.

[0015] Each paper separating suction nozzle 14 component is composed of an upper suction cylinder 13 and a lower suction nozzle 14. Claw hooks 12 are provided on both sides of the upper end of the suction cylinder 13 to limit its up and down displacement and prevent the suction cylinder 13 from falling when being accidentally impacted.

[0016] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0017] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A centered paper separation mechanism, comprising a cam, a roller and a first swing rod, characterized in that, The roller is installed on one side of the first swing rod, and the cam is installed on the frame for driving the roller to move; one end of the first swing rod rotates around the first rotation axis, the other end of the first swing rod is movably connected to the eccentric shaft, the eccentric shaft is located on one side of the first swing rod, one end of the connecting rod is located on the other side of the first swing rod, the other end of the connecting rod is connected to the third shaft, the third shaft is connected to one end of the second swing rod, the other end of the second swing rod is connected to the second shaft, and a sheet separating suction nozzle component is installed on the third shaft.

2. The centering type paper separation mechanism according to claim 1, characterized in that, The sheet separating suction nozzle component is fixed on the third shaft through a mounting block. The mounting block is provided with a mounting hole in the middle, the third shaft passes through the mounting hole, the mounting block has a U-shaped structure, and the upper ends of the U-shaped structure of the mounting block are connected by screws, so as to lock the sheet separating suction nozzle component on the third shaft.

3. The centering paper separating mechanism according to claim 1 or 2, characterized in that, A plurality of sheet separating suction nozzle components are symmetrically installed on both sides of the connecting rod along the third shaft.

4. A centered paper separation mechanism according to claim 1 or 2, characterized in that, The sheet separating suction nozzle component includes a suction cylinder and a suction nozzle. A claw is provided at the upper end of the suction cylinder for limiting it, and the suction nozzle is installed at the lower end of the suction cylinder.

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