KR0168237B1 - Film loading device for a printer - Google Patents

Abstract

The present invention relates to a stencil type printing apparatus, and more particularly, to a clamping mechanism for mounting a printing film on a drum. The clamping mechanism is installed on an outer circumferential surface of the drum and a clamp driving part is installed inside the drum to simplify the sheet film mounting mechanism. In this way, the printing machine can be printed more economically, and the reduction of the number of parts can be achieved, and the unnecessary operation is performed to increase the reliability of the print job and also the initial time required during the whole printing job. It is possible to obtain the effect of reducing the print preparation time and the time taken after printing.

Description

Mounting and distribution device of stencil printing machine

1 (a), (b) is a simplified configuration and perspective view showing an embodiment of the present invention.

(A) and (b) are partial enlarged views of (a) and (b) of FIG.

3 (a), (b), (c) and (d) are operating state diagrams of the present invention.

4 (a), (b), (c) and (d) are partial enlarged views of FIGS. 3 (a), (b), (c) and (d).

* Explanation of symbols for main parts of the drawings

10: drum 10a: skin

20: ink supply roller 30: ink amount control member

50: clamping device 51: magnetic plate

52: clamp 52a: clamp separation blade

53: axis 54: second gear

55: first gear 56: fixed bushing

57: power cable 59: clamping motor

60: original film for printing 61: thermal head

62: original film for printing 63, 64: feed roller

65: cutter 66,67: guide plate

68: paper sensor 70: paper separation / discharge mechanism

71: Separation mechanism 71a: Paper film separation blade

72: shaft 73: spring

74,75 separation roller 76,77: discharge guide

78,79: discharge roller 80: discharge tray

S: Paper for printing

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a stencil printing apparatus, in particular, a mounting mechanism, a printing mechanism, and a trial mechanism for mounting a printing film on a drum.

Generally, a stencil type printing apparatus includes a reading mechanism for reading an image from an original, a platemaking mechanism for printing an image on a raw film, a mounting mechanism for mounting the plated printing film on a porous drum, and an unfilm film. It can be classified into a printing mechanism for printing on printing paper, a paper feeding mechanism for supplying printing paper, a paper discharge mechanism for discharging printed paper, and a paper film discharge mechanism for separating and discharging the finished film on the drum. have.

The present invention relates to a mounting mechanism (clamping mechanism) for mounting a base film plated in a stencil plate printing apparatus to a drum and a base film discharge mechanism for printing and discharging the base film separated from the drum. The clamping device is installed on the drum, and the clamping drive mechanism for driving the clamping device is mounted on the main body to mount the perforated printed film onto the drum. Complex mechanisms such as solenoids, lever mechanisms, and springs that pull the levers in one direction were required. Subsequently, after the printing is completed, the original film is discharged by the original film ejecting device which removes the printed original film deposited on the drum.

The present invention is to solve the above problems, the clamping mechanism is installed on the outer circumferential surface of the drum and the clamp drive unit is installed inside the drum by simply configuring the paper film mounting mechanism to print more economically Increase the reliability of the print job by eliminating unnecessary operations, and also reduce the initial print preparation time and post-print time required during the entire print job. It is characterized in that to obtain an effect to make.

Another object of the present invention is to provide a printing material that can be economically printed by simply separating and discharging the discharging and discharging mechanism of the raw film in relation to the mounting mechanism. To provide a device.

In the embodiment of the present invention, the clamping device is installed on the rotating drum, and the clamping driving mechanism is installed inside the drum to remove the various unnecessary mechanisms, and when the paper film is discharged by the interaction of the clamping device and the discharge device. Simply separate the paper and let it go.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

1 (a, b) shows an embodiment according to the present invention. In addition, FIG. 2 (a, b) shows a part of FIG.1 (a, b) in detail, respectively. In the figure, 10 denotes a rotating drum, which is supported by the main body so as to be rotated clockwise by receiving rotational force from the main motor. Inside the drum 10, an ink supply roller 20 which engages with the rotation of the drum and rotates is installed, an ink amount control member 30 for controlling the ink amount, and an ink container for supplying ink to the ink supply roller (not shown). Is installed). In addition, a clamping device 50 is provided over the outer circumferential surface of the drum, and a printing paper film roll 60 is provided on the front of the drum, in which a printing paper film is wound, and adheres to the printing platen roller 62. The molten stencil image desired to be obtained by the heat generation of the heat-sensitive thermal head 61 is punched onto the printing paper film S. At this time, the clamp 52 of the clamping device 50 is located in the clamp standby state, as shown in Figs. 1 (a) and (b).

Then, the front end of the printing paper film S which is being punched by the thermal head 61 passes the cutter 65 by the feed rollers 63 and 64 and passes through the guide plates 66 and 67 by the paper sensor 68. If detected, if the tip reaches between the magnet plate 51 of the clamp 52 and the drum 10 after a predetermined time, the clamping motor 59 is powered by the control of the controller and rotates clockwise and accordingly The clamp 52 rotates counterclockwise by the rotation of the first and second gears 55 and 54, and then the clamp 52 and the magnetic plate 51 are connected to the drum 10 by the suction force of the magnetic plate 51. The tip of the printing base film S is clamped between the two members, and the power of the clamping motor 59 is turned off by the controller. This state is shown in FIGS. 3 (a) and 4 (a).

Subsequently, the perforation is performed in the thermal head 61, and the feed rollers 63 and 64 transfer the original film S, and the clamping device 50 is clamped by the clamp 52 by the slow clockwise rotation of the drum 10. The tip of the film S is rotated in a clamped state, whereby the perforated printing paper S is wound around the drum 10. That is, boarding is performed.

When the clockwise rotation of the drum 10 proceeds (about 45 degrees), the clamping device 50 exits the paper separating and discharging device 70. In the clamping state, the tip of the paper film S is clamped. The clamping device 50 and the front ends of the base films S and S are spaced apart from each other by the clamping device 50. Figures for this are shown in FIGS. 3 (b) and 4 (b).

When the perforation in the thermal head 61 is completed, the paper film S is cut by the cutter 65 by a predetermined length, and the drum 10 and the clamping device 50 are rotated by one rotation to the initial position (clamping device 50). ) Is rotated to the highest position on the drum to complete the seating.

Subsequently, a test print is performed for one sheet, and the number of sheets indicated by the user is printed. The detailed description of this printing is indicated in detail in Japanese Patent Document (Su 59-143679), and thus description thereof is omitted.

The printing by the user's designation is completed and the clamping is released and the backplate is performed when necessary. The drawings are illustrated in FIGS. 3C and 4C.

3 (c) and 4 (c) indicate the clamp release. The clamp 52 is rotated clockwise by the counterclockwise rotation of the clamp motor 59 to release the clamp. At this time, the clamp 52 lifts the tip end portion of the film S, which is in close contact with the drum 10, from the bottom of the clamp separation blade 52a through the escape portion 10a of the drum 10, and lifts it upward. In this state, the drum 10 rotates slowly to approach the paper separating discharge mechanism. Subsequently, if the rotation proceeds continuously, the separation blade 71a of the separation mechanism 71 is inserted between the clamp separation blade 52a and the lifted up film S, and when the rotation of the drum 10 proceeds, the film S The tip of the roller reaches the separation rollers 74 and 75, and by the rotation of these two rollers, the tip of the base film S passes through the discharge guides 76 and 77 and reaches the discharge rollers 78 and 79. 10) and the printed paper film S is separated by the rotation of the rollers (74, 75, 78, 79) and discharged to the discharge tray (80). 73 is a spring for supporting the separator.

Subsequently, the drum 10 rotates and waits in the clamp standby position (FIG. 1 (a, b)).

Then, when the printing paper film S for new printing is conveyed by the feed rollers 63 and 64, the paper sensor 68 is detected and the clamp 520 is rotated counterclockwise by the clockwise rotation of the clamp motor 59. It rotates to clamp the tip of the paper S.

As described above, in the present invention, the clamping mechanism is installed on the outer circumferential surface of the drum, and the clamp driving unit is installed inside the drum to improve the original film mounting mechanism, thereby improving the original film mounting mechanism. Simple configuration in relation to the mounting mechanism provides a printing machine that can print more economically, achieves a significant reduction in the number of parts, increases the reliability of print jobs by eliminating unnecessary operations, and also prints the entire print. It is possible to obtain the effect of reducing the initial print preparation time required during the work and the time required after printing.

Claims (3)

A reading mechanism for reading images from an original, a plate making mechanism for printing images on an original film, a clamping mechanism for mounting the plated printing film on a porous drum, a printing mechanism for printing an image of an original film on printing paper, A stencil printing machine comprising: a paper feed mechanism for supplying printing paper; a paper discharge mechanism for discharging printed paper; and a paper film discharge mechanism for separating and discharging the finished paper film on a drum; Is installed on the outer circumferential surface of the drum, the clamp drive unit is located inside the drum, and the paper film discharging mechanism is configured to separate and discharge the paper on the drum in relation to the operation of the clamping mechanism. Mounting and distributing device. According to claim 1, When the clamping mechanism rotates clockwise to form a clamp separation blade (52a) opposite the clamp 52, the base film (S) spaced apart, the space in which the clamp separation blade (52a) is rotatable Forming part (10a) for providing a plate on the drum (10), the plate-and-plate apparatus of the stencil plate printing apparatus, characterized in that the power unit for driving the clamp 52 is formed in the drum. According to claim 1, wherein the discharge mechanism, the base film separating mechanism 71 and the base film separating mechanism 71 formed with the base film separating blade 71a into which the base film S is inserted, and the base film separating mechanism 71 Separation roller (74, 75) and the discharge roller (78.79) for separating and discharging the plate-and-plate apparatus of the stencil plate printing apparatus, characterized in that it comprises a spring for supporting the separation mechanism.