KR0121165Y1 - Sheet separating device for a printer - Google Patents

Abstract

The present invention relates to a sheet separating apparatus of a plate making apparatus, in which a sheet is separated from a drum in order to discharge the printed paper out of the printing apparatus. It is installed by fixing it at some distance from the drum, and by installing a device to push the paper tip toward the separation tank in the clamp device, and fixing the separation tank without moving the separation tank to avoid the clamp device as the drum rotates. It can solve problems such as problems caused by vibration when it is attached to and detached from the paper, or because it is installed in a narrow space between the master paper and the paper in the conventional method, such as the problem of damage to the master paper or difficulty in separating the paper according to the fine adjustment state. I would have to.

Description

Paper separator of stencil printing machine

1 is a simplified diagram showing the gist of the present invention,

2 is a perspective view of the main portion of FIG.

3 (a, b, c) is an operating state diagram of the present invention.

* Explanation of symbols for main parts of the drawings

1 drum 3 rotating plate guide

4: discharge guide 6: rotating piece

7: stopper 8: axis

9 gear 10 fixing device

11, 12; Extrusion device 13: connecting shaft

14 spring 15 clamp

16: press roller 17: ink roller

19: discharge roller 20: belt

21: paper 22: paper

23 separation device 24 separation tank

The present invention relates to a sheet separating apparatus of a plate type printing apparatus, in particular a sheet separating apparatus which separates paper from a drum in order to discharge printed paper out of the printing apparatus.

Generally, the stencil printing machine reads the paper to be printed to make a master paper, and then winds the ink on the drum containing the ink supply device and feeds the paper onto the gap to send the ink into the gap of the master paper to print on the paper. Device. The paper is fed from the paper feeder, enters the bottom of the drum, is pressed onto the press roller drum, is printed, and then discharged by the discharge device. At this time, in order to send the paper attached to the drum by the viscosity of the ink to the discharge device requires a separation device for separating the paper from the drum.

Conventional paper separator uses the fact that ink does not adhere to the non-printed part of the paper (approximately 10mm from the tip of the paper) and does not adhere to the drum. It is designed to move the paper to the discharge device using a fan.

However, these devices must be installed with the separation tank as close to the drum as possible, because the separation tank must fit between the narrow gap between the paper and the master. However, if the separation tank is installed too close to the drum, it may touch the master paper and cause scratches.If the separation tank is too far away, it may be difficult to separate.If the separation tank is installed close to the drum, hold the leading edge of the master paper when rotating the drum. Because it touches the clamp that should be avoided every time there was a problem such as the position of the separation tank is changed by the vibration light at this time.

The present invention is to solve the above problems, the separation tank is fixed to a certain position away from the drum so as not to contact the clamp device, and the clamp device is provided with a device for pushing the paper end toward the separation tank, The problem is caused by vibration when the separator is attached to the drum by fixing it without moving the clamp to avoid the clamping device as it rotates, or it is installed in a narrow space between the master paper and the paper in the conventional method. Therefore, according to the state of fine control, it is characterized in that it is possible to solve the problems such as the damage of the master paper or the difficulty of separating the paper.

That is, the clamp is fixed to the fixing device fixed to the drum and rotates in the clockwise or counterclockwise direction by the operation of the gear to hold the end of the master paper closed during printing and to open it during the backplate; One side is located on the paper pushing device and the other side is fixed to the rotating piece which is inserted in a rotatable state while being stopped by the stopper, and is fixedly connected to each other by the shaft and rotates counterclockwise as the rotating piece rotates clockwise. A paper pushing device for removing the paper from the drum, a spring wound together with the paper pushing device and the clamp connected to the substrate by the shaft, and a spring for restoring the paper pushing device to push the paper back to its original position. Fixed and acts as a guide for the rotating piece, rotating the rotating piece, It consists of a separation tank that serves as a guide to discharge the paper.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of the paper feeding, printing, media separation tank, and clamp portion of the present invention, and FIG. 2 is a perspective view of a drum, separation tank, and clamp portion, and FIG. 2 is an original view of FIG. (A, b, c) is a front view showing the operating state of the separation mechanism.

1 is a schematic diagram of feeding, printing, and discharging, the paper 22 passing through the register roller 18 enters the lower portion of the drum 1 on which the paper 21 is wound, and together with the paper 21, the press roller 16 ) And the ink roller 17. At this time, the ink flowing out between the fine holes of the drum 1 passes through the master paper 21 and is printed on the paper 22. The printed paper 22 is removed from the drum 1 by the separating device 23 and passed through the separation tank 24 and the belt 20 wound around the discharge roller 19 to be discharged.

FIG. 2 is a detailed perspective view of the separating device 23 and the separating tank 24 during the first step, and is fixed to the fixing device 10 fixed to the drum 1 and is operated by the operation of the gear 9. Rotating in the counterclockwise or counterclockwise direction, the clamp 15 serves to close and hold the end of the master paper 21 during printing and to be opened during the distribution, and one side is located in the paper paper pushing device 11. The other side is fixed to the rotating piece 6 is inserted into the rotatable state while stopped by the stopper (7), and connected to each other by the connecting shaft 13, and the rotating piece (6) is rotated clockwise The paper pushing device (11, 12) which removes paper from the drum (1) while rotating clockwise, and the paper pushing device (11, 12) and the clamp (15) are wound together, Slide the paper out and return it to its original position It is fixed to the substrate by the spring (14) and the shaft (5) which gives a restoring force to return, and serves as a guide of the rotating piece to rotate the rotating piece and discharge the paper 22 released from the drum (1) It consists of the separation tank 24 which consists of the rotating piece guide 3 and the discharge guide 4.

In the present invention configured as described above, the drum (1) is fixed to the drum center rotates counterclockwise around the fixed shaft (2) sandwiched in the substrate not shown in the figure. 15 is fixed to the shaft 8 by a clamp, fixed to the fixing device 10 fixed to the drum 1, and rotated in a clockwise or counterclockwise direction by the operation of the gear 9. The end of (21) serves to close when printed and open when placed. Rotating pieces 6 are fitted on both sides of the shaft 8 in a loosely rotatable state while being stopped by a stopper 7 on one side of the paper pushing device 11 on the other. (11) and (12) are fixed by being connected to each other by the connecting shaft 13 by a paper pushing device and separated from the drum (1) while rotating the counterclockwise rotation as the rotating piece (6) rotates clockwise. Serve A spring 14 is wound around the connecting shaft 13 while the paper pushing devices 11 and 12 and the clamp 15 are connected, thereby restoring the paper pushing device so that the paper pushing device pushes the paper and then returns it to its original position. do. Separation tank 24 consists of (3) and (4), and is fixed to the board | substrate which is not shown in figure by the shaft (5). (3) is a rotating piece guide to serve as a guide of the rotating piece to rotate the rotating piece, (4) is a medium guide that serves as a guide for releasing the paper 22 separated from the drum (1).

The overall operation sequence is shown in FIG. 3 (a, b, c).

The master paper 21 is mounted on the clamp device 15 to which the paper ejectors 11 and 12 are attached, and the paper rollers 16 ejected from the paper feeder on the paper ejector 12 are obtained. (A) is a state in which printing starts through (a). When the paper 22 continues to print and the separator 23 comes to the position of FIG. 3 (b), the rotating piece 6 rotates clockwise while touching the rotating piece guide 3 of the separating tank 24. At this time, the outer part 11 of the paper pushing device rotates counterclockwise by contacting the rotating piece 6 and the paper pushing device part 12 on which the paper 22 is placed also rotates counterclockwise. While pushing the tip of the paper 22 to the outside of the drum (1). The above is the same as that of FIG.

3 (c) shows that the separation device 23 completely passes the separation tank 24, and the paper 22 passes between the separation tank 24 and the belt 20 wound on the discharge roller 19. In the state of being discharged, the paper pushing apparatuses 11 and 12 show the state which returned to the original position with the rotating piece 6 again by the restoring force of the spring 14. As shown in FIG. In this manner, the drum 1 is continuously rotated so that printing is performed on the paper 22 and the printed paper is separated and discharged by the separating device 23 and the separating tank 24.

Since the separation tank 24 is separated from the drum as described above, it is not necessary to move the separation tank 24 to avoid the clamp device 15, and the damage of the master paper 21, which is a problem when the separation tank approaches the drum, is caused. Not only can it be prevented, but also the adjustment is easy, and since the separation device 23 pushes the paper 22 toward the separation tank, smooth separation is performed.

Claims (1)

In the stencil type printing apparatus, the end of the master paper 21 is fixed while being fixed to the fixing device 10 fixed to the drum 1 and rotating clockwise or counterclockwise by the operation of the gear 9. A clamp 15 which is closed during printing and opened when being placed on the back, and one side is located in the paper pushing device 11 and the other side is rotated in a rotatable state while being stopped by the stopper 7. A paper pushing device which is fixed while being connected to each other by the piece 6 and the shaft 13 and which removes the paper from the drum 1 while rotating the counterclockwise direction as the rotary piece 6 rotates clockwise ( 11 and 12, springs 14 for restoring force so that the paper pushing devices 11 and 12 push back the paper and then return to the original position, and are fixed to the substrate by the shaft 5 and serve as guides of the rotating piece. To rotate the rotating piece Plate-type engraving, comprising a separation tank 24 made of a rotating guide (3) and a discharge guide (4) serving as a guide for discharging the paper (22) separated from the drum (1) Paper separator of the device.