JPH0651525A - Dust removing mechanism for original plate - Google Patents

Abstract

PURPOSE:To automatically and surely remove dust, etc., from an original plate surface and to easily make entire printing work efficient. CONSTITUTION:This mechanism is provided with an opening part 28 provided on an original plate arranging part 16, a dust removing roller member 30 faced to the opening part 28 and executing the dust removing work of an original plate 22 by moving along the surface of the original plate 22 arranged on the original plate arranging part 16 and a driving means 32 displacing the dust removing roller member 30 forward/backward. When belts 40 and 48 are integrally driven through a rotating driving source 34 in a state where the original plate 22 is arranged on the original plate arranging part 16, the dust removing roller member 30 is rotated and moved in a state where it comes into contact with the surface of the original plate 22, so that the dusts, etc., stuck to the original plate 22 are automatically removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a printing plate provided with a printing material, for example, a printing material coated with a photosensitizing agent, for performing a baking process. Regarding dust removal mechanism.

[0002]

2. Description of the Related Art Generally, a printing apparatus used in a printing plate printing process is arranged such that an original plate is automatically or manually positioned in an original plate placement portion while a printing target material (for example, a printing material coated with a photosensitizer is used). ) Is adsorbed and held on the baking part,
The original plate is superposed on a desired portion of the material to be baked in a state of being sucked and held by a holder member provided with a suction means, and a baking process is performed by turning on an exposure part (baking part).

[0003]

By the way, in the above apparatus, if dust or the like adheres to the surface of the original plate when the original material and the original plate are superposed on each other, the baking object subjected to the baking process is performed. In addition, due to the dust or the like, so-called burning defects such as so-called blurring are likely to occur. Therefore, for example, it is necessary to manually remove dust and the like from the surface of the original plate immediately before the original plate is placed in the original plate placement section, which has been pointed out as a problem that this kind of work is complicated and inefficient.

The present invention solves this kind of problem, and can remove dust and the like from the surface of the original plate automatically and surely, and can easily improve the efficiency of the entire printing operation. The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is designed such that an original plate positioned and arranged in an original plate arrangement portion is sucked and held by a holder member, and the original plate is baked on a printing portion. In a printing apparatus that performs a printing process corresponding to the original by turning on a printing light source by superimposing it on a desired portion of the material, an opening provided in the original placement part and the opening facing the opening, the original placement part A dust removing roller member that moves in an engaged state with the arranged original plate surface to remove dust from the original plate surface; and a driving unit that moves the dust removing roller member forward and backward relative to the original plate surface. To do.

[0006]

In the original plate dust removing mechanism according to the present invention, after the original plate is positioned and arranged in the original plate arrangement portion, the dust removing roller member is provided in the original plate arrangement portion with the holder member adsorbing the original plate. And moves along the original surface.
Immediately after the dust and the like adhering to the original plate is automatically removed through the dust removing roller member, the original plate is superposed on the material to be baked and subjected to the baking process. Therefore, the baking process is performed using a clean original plate free from dust and the like, and the baking process is performed with high accuracy and efficiency.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The original plate dust removing mechanism according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 2, reference numeral 10 indicates an automatic printing apparatus incorporating the original plate dust removing mechanism according to the present embodiment.
The automatic printing apparatus 10 includes a tilt base 12 that tilts at a predetermined angle with respect to the vertical direction, and a printing mechanism 14 that is movable along the tilt base 12. An original placement unit 16 and an original discharge unit 18 are provided side by side in the vertical direction on one end side of the inclined base 12, and a printing unit 20 is provided on the other end side upper portion of the inclined base 12. While the original 22 is placed in the original placement unit 16, the material to be baked 24 is positioned and held in the printing unit 20, and the original placement unit 16 is provided with the original plate dust removal mechanism 26 according to the present embodiment.

As shown in FIGS. 1 and 3, the dust removing mechanism 2
Reference numeral 6 denotes an opening 28 provided in the original placement section 16 and a surface of the original 22 placed in the original placement section 16 facing the opening 28 and moving along the surface of the original 22 to remove dust from the original 22. The dust removing roller member 30 and a driving means 32 for moving the dust removing roller member 30 forward and backward are provided. The drive means 32 includes a rotary drive source 34, and a pulley 38 is attached to a rotary shaft 36 extending from the rotary drive source 34. One end of the belt 40 engages with the pulley 38, and the other pulley 42 engages with the other end of the belt 40. An attachment member 44 is fixed to a predetermined portion of the belt 40, and the attachment / detachment direction of the belt 40 (direction of arrow D) is fixed to the attachment member 44.
An elongated hole 46 is formed in a direction intersecting with (direction of arrow C).

A belt 48 is arranged in parallel with the belt 40, and both ends of the belt 48 are engaged with pulleys 50 and 52, and a mounting member 54 is fixed to a predetermined portion of the belt 48. An elongated hole 56 is formed in the member 54. In order to drive the belts 40 and 48 synchronously, a rod 53 is integrally mounted on the pulleys 38 and 50.

The dust removing roller member 30 has, for example, an adhesive layer on its outer peripheral surface in order to remove dust and the like adhering to the original plate 22. Rods 58a and 58b extend from both ends of the dust removing roller member 30.
Bearings 60a and 60b that are externally mounted on 58b are fitted into the long holes 46 and 56 of the attachment members 44 and 54, respectively. The bearings 60a and 60b are further fitted into guide grooves 62a and 62b formed in a guide plate (not shown), and the guide grooves 62a and 62b extend in parallel with the opening 28 of the original placement unit 16. And the direction in which both ends thereof are separated from the opening 28 (inward of the original placement portion 16)
It is bent to.

As shown in FIG. 2, the printing mechanism 14 is provided with a movable frame member 66 which can move forward and backward along the inclined base 12 in the direction of arrow A (horizontal direction).
6, a holder member 68 that is movable in the direction of arrow B intersecting the direction of arrow A and in the direction of moving forward and backward with respect to the surface of the inclined base 12 (direction of arrow C) is provided. The holder member 68 includes suction means (not shown) for suction-holding the original plate 22. A baking unit 70 is fixed to the upper portion of the holder member 68, and a light source and a reflecting mirror (not shown) are arranged in the baking unit 70.

Next, the operation of the automatic printing apparatus 10 configured as described above will be described in relation to the dust removing mechanism 26 according to this embodiment.

First, the original 22 is positioned and placed in the original placement unit 16, and the material to be baked 24 is adsorbed and held by the printing unit 20. The work of arranging the original plate 22 and the material to be baked 24 may be automatically performed via a transport mechanism (not shown), or may be manually performed by the operator himself.

Then, the movable frame member 66 constituting the printing mechanism 14 is moved to the original plate placement portion 16 side (direction of arrow A), and the holder member 68 is moved in direction of arrow B, so that the holder member 68 is moved. Are arranged corresponding to the original plate 22 held in the original plate arrangement unit 16.
Then, after the holder member 68 is moved to the original plate 22 side (direction of arrow C), the original plate 22 is adsorbed and held under the action of the adsorbing means (not shown).

In this state, the rotary drive source 34 constituting the dust removing mechanism 26 is driven, and the pulley 38 is rotated via the rotary shaft 36.
When the belt is rotated, the belt 40 engaged with the pulley 38 and the other pulley 42 is rotated, and the belt 40 and the belt 4 are rotated.
8 and 8 are integrally rotated via a rod 53 (see the arrow in FIG. 1). Therefore, the dust removing roller member 30 held by the mounting members 44 and 54 fixed to the predetermined portions of the belts 40 and 48 moves in the direction of arrow D in FIG.

At this time, the dust removing roller member 30 has rods 58a and 58b provided at both ends thereof and a guide groove 62.
The opening portion 2 of the original plate placement portion 16 under the guiding action with a and 62b.
After projecting to the 8 side, it moves in parallel with this opening 28. Therefore, the original plate 22 attracted to the holder member 68
While the dust removing roller member 30 is in contact with the film surface of the original plate 22, the dust removing roller member 30 moves in the direction of the arrow D while the original 22
By rotating along the film surface, the dust and the like adhering to the film surface can be removed. The dust removing roller member 30 moves along the original plate 22 in the direction of arrow D, and then retreats in the direction away from the opening 28 under the guiding action of the guide grooves 62a and 62b that are bent, that is, inward of the original plate placing portion 16. Move.

After the dust removing operation of the original plate 22 is completed, the movable frame member 66 is moved away from the original plate arrangement portion 16 to the central portion side of the inclined base 12, and the holder member 68 is also provided.
Is moved upward, the original plate 22 adsorbed and held by the holder member 68 is superposed corresponding to a desired portion of the material to be baked 24 arranged in the baking section 20. Then, with the original 22 and the material to be baked 24 in close contact,
By driving the printing unit 70, the material to be printed 24 is printed with an image or the like corresponding to the original 22.

After the printing process is completed, the close contact between the original plate 22 and the material to be baked 24 is released, and the holder member 68 holds the original plate 22 and sucks the original plate 22.
8 and discharges the original 22 to the original discharging unit 18.

In this case, in the present embodiment, the original plate placement unit 16
In the state where the original plate 22 arranged in the above is adsorbed by the holder member 68, dust and the like adhering to the film surface of the original plate 22 is automatically removed through the dust removing roller member 30 which moves under the driving action of the dust removing mechanism 26. To be done. Therefore, the original plate 22 is removed of dust immediately before it is superposed on the material to be baked 24, so that the baking portion 7
It is possible to reliably prevent dust or the like from adhering to the original plate 22 during the baking process with 0, and it is possible to perform a highly accurate baking process without burning blur. Moreover, the dust removal mechanism 2
Since the dust removal work of the original plate 22 is automatically performed via 6, it is possible to obtain the effect that the entire printing work can be easily made efficient and automated.

In this embodiment, the dust removing roller member 30
Although an adhesive layer is provided on the outer peripheral surface of the above, it is not limited to this, and various structures such as a structure for adsorbing and removing dust by static electricity and a structure using a brush-like flocking material are adopted. It is possible. Further, although the rotary drive source 34 and the belts 40 and 48 are used as the drive means 32, any structure that can move the dust removing roller member 30 may be used, and various structures such as a cylinder can be adopted.

[0022]

As described above, the original plate dust removing mechanism according to the present invention has the following effects and advantages.

After the original plate is positioned and arranged in the original plate arrangement portion, the dust removing roller member faces the opening provided in the original plate arrangement portion and moves along the original plate surface to adhere to the original plate surface. Dust etc. can be removed automatically. Further, since the original plate is subjected to the baking process by being superposed on the material to be baked immediately after the dust removing work, the baking process is performed with high accuracy and efficiency using the original plate in a clean state free from dust and the like. Moreover, since the dust removal work is automatically performed, the efficiency and automation of the entire baking work can be easily performed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a main part of a dust removing mechanism for an original plate according to the present invention.

FIG. 2 is a perspective explanatory view of an automatic printing apparatus incorporating the dust removing mechanism.

FIG. 3 is a front view of an original arranging portion which constitutes the automatic printing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Automatic printing device 12 ... Inclined base 14 ... Printing mechanism 16 ... Original plate arrangement part 18 ... Original plate discharge part 20 ... Printing part 22 ... Original plate 24 ... Burning material 26 ... Dust removal mechanism 28 ... Opening part 30 ... Dust removal roller member 32 ... Drive means 34 ... Rotational drive source 40 ... Belt 44 ... Mounting member 48 ... Belt 54 ... Mounting member 62a, 62b ... Guide groove 66 ... Movable frame member 68 ... Holder member 70 ... Baking part

Claims (1)

[Claims] 1. An original plate positioned and arranged in an original plate arrangement portion is adsorbed and held by a holder member, the original plate is superposed on a desired portion of a material to be baked held in a baking portion, and the original light source for lighting is turned on. In a printing apparatus that carries out a printing process corresponding to, an opening provided in the original arranging section and the original moving toward the opening and in an engaged state with an original surface arranged in the original arranging section. A dust removing mechanism for an original plate, comprising: a dust removing roller member for performing a dust removing operation on the plate surface; and a drive unit for moving the dust removing roller member forward and backward with respect to the original plate surface.