JPS637382B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention efficiently and continuously prints two images with so-called point symmetry, in which the top, bottom, left and right are reversed, onto a single sheet of photosensitive material using a single original plate. The present invention relates to a device capable of printing.

Generally, in order to print multiple identical images side-by-side on a single sheet of photosensitive material, the original plate on which the image to be printed is formed on a transparent base is sequentially aligned and brought into close contact with the required printing device for the photosensitive material. After that, the process of exposing to light is repeated as many times as required. In this case, in order to prevent the surface of the photosensitive material other than the area on which the image of the original plate is superimposed from being exposed to unnecessary light rays, causing a so-called fog phenomenon, the area other than the area is made of a non-transparent material. The light is blocked by a mask.

To be more specific, when printing two images of the same shape side by side on one photosensitive material, first, the original plate on which the image to be printed is formed on a transparent base is
The first image on the photosensitive material is aligned with the half of the photosensitive material that is to be printed, and the second image is printed on the other half of the photosensitive material. In order to prevent fogging caused by irradiation light, cover with an opaque mask to block light. In this state, the first exposure is carried out, and then the original plate is moved to the position on the photosensitive material where the second image is to be printed, aligned and brought into close contact, and the first image is exposed with a mask.
A second exposure is performed covering the image side half.

This is a very common method when printing two identical images on a single sheet of photosensitive material, but the original plate and mask are each positioned twice. It is time-consuming because it needs to be superimposed on the photosensitive material.

The present invention relates to an apparatus that prints two images on the original plate by horizontally rotating only the photosensitive material without moving the original plate and the light-shielding mask once the original plate is attached. explain.

1 is the underframe, and on its top surface, from the left, there are feeding plates and
A reversing carrier 2, a rubber sheet pasting device 3, an original plate supply/discharge device 4, and a discharge plate carrier 5 are provided.

The feeding plate/reversing carrier 2 has a hydraulic or pneumatic telescoping/rotating cylinder 23 attached to a receiving plate 22 in the middle of a support frame 21 that can move the upper surface of the underframe 1 from side to side as appropriate by wheels 28. The support plate 24 is equipped with a support plate 24 that can be raised, lowered, and rotated, and four vacuum suction rods 25 are provided on both sides of the lower surface of the support plate 24, respectively.

The amount of elevation and rotation angle of the support plate 24 are appropriately controlled by known means such as a limit switch, but since such means themselves have no direct relation to the present invention, a description thereof will be omitted.

Directly below the support plate 24, a photosensitive material holder 26 is provided on the upper surface of the underframe 1. The pedestal 2
Four register pins 27 are erected on the left side of 6.

The rubber sheet pasting device 3 is a self-winding type automatic winding type machine in which a rubber sheet 32 is wound around a housing frame 31 that can be moved left and right along rails 19, 19 on the upper surface of the underframe 1. It is pivoted on the shaft 33 of
A base end 32a of the rubber sheet 32 extending from the shaft rod 33 is fixed to the upper surface of the underframe 1 directly to the right of the feed plate/reversing carrier 2.

At a key point on the right side when the rubber sheet pasting device 3 is moved to the leftmost position, there is a mark on the top surface of the underframe 1.
A glass plate 11 larger than the original plate and the photosensitive material is pasted, and two rows of register pins 12 and 13 on the left and right are arranged in the same manner as the register pins 27 and can protrude and retract from the upper surface of the underframe 1. It is set up.

A frame-shaped airtight seal 14 is attached to the four circumferences of the upper surface of the glass plate 11, and a deaerator 9 is connected to a suitable position inside the seal.

Directly below the center of the glass plate 11, a printing light source 8 facing upward is disposed.

The original plate supply/discharge device 4 is constructed by arranging a plurality of vacuum suction rods 43 in a row in the front-rear direction at the left end of a casing frame 42 that can be moved left and right as appropriate on rails 19 by wheels 41. There is.

Four register pins 15 having the same arrangement as the register pins 27 are erected on the top surface of the underframe 1 directly below the left side when the original plate supply/discharge device 4 is moved to the leftmost side, and slightly to the left On one side, a receiving plate 16 is provided which slopes upward as it faces left. An opening 17 is provided on the left side of the receiving plate 16, and the left end of a sliding plate 18 is pivotally attached 18a to the left side edge of the opening 17.

The discharge plate carrier 5 has downward vacuum suction rods 54 at key points on the right and left of a receiving plate 53 in the middle part of a support frame 52 which can be moved left and right on the underframe 1 by wheels 51, respectively. It is configured by arranging four pieces each.

Immediately below the discharge plate carrier 5, on the upper surface of the underframe 1, there is provided a discharge conveyor 55 whose upper surface runs to the right.

Next, a procedure for printing two point-symmetrical images on a photosensitive material using the apparatus of the present invention having the above-mentioned configuration using one original plate having an image on half of its area will be explained.

An original plate 6 is placed directly below the original plate supply/discharge device 4 .

On the left side edge of the original plate 6, each register pin 12,
A punch hole 61 that can be properly fitted into the original plate 27 is formed, and an image 62 is displayed on the front half of the original plate 6, as shown in FIG.

Various original plates 6 are stacked and placed on a pedestal 26 at the left end of the upper surface of the underframe 1, and each original plate 6 is positioned by fitting its punch hole 61 into a register pin 27. . A light-shielding mask 63 is superimposed on the rear half of each original plate 6.

An appropriate number of photosensitive materials 7 are stacked directly below the feeding plate/reversing carrier 2. On the left side of each photosensitive material 7,
Punch holes 71 corresponding to the register pins 27
are bored, and these fit into the register pins 15.

First, as shown in FIG. 4, the support plate 24 is lowered by the telescopic/rotating cylinder 23, and the uppermost photosensitive material 7 is adsorbed using the vacuum suction rod 25.
The support plate 24 is slightly raised.

At this time, among the register pins 12 and 13 arranged on the left and right above the light source 8, the one on the right side 13 is recessed from the upper surface of the underframe 1.

At the same time or immediately after this, the vacuum suction rod 43 is lowered to adsorb the uppermost original plate 6, and then the vacuum suction rod 43 is raised to form a hole on the left edge of the uppermost original plate 6. The punch hole 61 is removed from the register pin 15, and then the original plate supply/discharge device 4 is moved to just above the light source 8.

At this position, the vacuum suction rod 43 is lowered to fit the punch hole 61 on the left edge of the original plate 6 into the register pin 12, and then the suction force of the vacuum suction rod 43 is released and raised. , return the original plate supply/discharge device 4 to its original position on the right.

In this state, as shown in FIG.
is lowered once and the photosensitive material 7 is superposed on the original plate 6, and then the support plate 24 is raised and the rubber sheet pasting device 3 is moved to the right.

Then, as shown in Figure 7, the photosensitive material 7 and the original plate 6 are separated.
is pressed from above by the rubber sheet 32 let out from the shaft rod 33, and seals the inside of the airtight seal 14.

After the inside of the airtight seal 14 is degassed by the deaerator 9 and the photosensitive material 7 and the original plate 6 are superimposed and adhered to the glass plate 11, the light source 8 performs the required printing exposure.

After this exposure is completed, the rubber sheet pasting device 3 is returned to the left, the rubber sheet 32 is wound up, and the support plate 24 of the feed plate/reversing carrier 2 holds the photosensitive material 7 and lifts it up. , the support plate 24 is horizontally rotated by 180 degrees by the telescopic/rotating cylinder 23 (Fig. 8).

Next, the register pin 13 on the right side is raised, the register pin 12 on the left side is lowered, and the support plate 24 is lowered again, so that each punch hole 71 on the right side of the photosensitive material 7 is inserted into the register pin 1.
3, the vacuum suction of the photosensitive material 7 is released, the support plate 24 is raised, and the feeding plate/reversing carrier 2 is returned to its original position on the left.

Next, the rubber sheet pasting device 3 is moved to the right again, and as shown in FIG. 9, the airtight seal 14 is covered with the rubber sheet 32, and the inside thereof is degassed.
Perform baking again.

After the second baking, return the rubber sheet pasting device 3 to the left, wind up the rubber sheet 32, and
The register pin 13 is lowered and the discharge plate carrier 5 is moved directly above the light source 8 (FIG. 10).

Next, the vacuum suction rod 54 is lowered and raised to lift the photosensitive material 7, and then the discharge plate carrier 5
is returned to its original position on the right side, the vacuum suction rod 54 is released, and the photosensitive material 7 is dropped onto the discharge conveyor 55 (FIG. 11).

The discharge conveyor 55 sends the photosensitive material 7 to the processor.

Next, the original plate supply/discharge device 4 is moved above the light source 8, the vacuum suction rod 43 is lowered, and the left edge of the used original plate 6 is sucked, and the original plate supply/discharge device 4 is moved to the right. Then, the right edge of the original plate 6 is the receiving plate 16
, and moves onto the sliding plate 18. Therefore, when the suction by the vacuum suction rod 43 is released at a required time, the original plate 6 is stored on the sliding plate 18.

Thus, one cycle is completed, and it is obvious to those concerned that each of the above operations can be easily automated by known appropriate means.

Therefore, according to the present invention, point-symmetric printing using one original plate can be easily automated and carried out continuously, which is advantageous.

It goes without saying that instead of pasting the light-shielding mask 63 on the portion of the original plate 6 where the image 62 does not exist, an appropriate masking device may be used during printing.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view schematically showing an embodiment of the device of the present invention, Fig. 2 is a plan view taken along the line - - in Fig. 1, and Fig. 3 is a view of Fig. 1 from the left. The side views, FIGS. 4 to 12, are simplified front views showing the operating procedure of the device. DESCRIPTION OF SYMBOLS 1... Underframe, 2... Feeding plate/reversing carrier, 3... Rubber sheet pasting device, 4... Original plate feeding/discharging device, 5... Discharging plate carrier, 6... Original plate, 7... Photosensitive material, 8... Light source, 9...
Deaerator, 11... Glass plate, 12, 13... Register pin, 14... Airtight seal, 15... Register pin, 16... Reception plate, 17... Opening, 18... Sliding plate, 18a... Pivotal joint, 19... Rail, 21... Support frame, 22... Receiving plate, 23... Telescopic/rotating cylinder,
24... Support plate, 25... Vacuum suction rod, 26... Original picture holder, 27... Register pin, 31... Housing frame, 32...
Rubber sheet, 33... Axial rod, 41... Wheel, 42... Housing frame, 43... Vacuum suction rod, 51... Wheel, 52... Support frame, 53... Receiving plate, 54... Vacuum suction rod, 55... Discharge conveyor, 61... Punch hole, 62... Image, 63
...Light-shielding mask, 71...Punch hole.

Claims (1)

[Scope of Claims] 1. The photosensitive material is vacuum-adsorbed to the side of the printing section where punch holes punched at appropriate locations in the original plate and the photosensitive material are fitted into register pins to align and polymerize. 1. A point-symmetrical baking device, characterized in that it is equipped with a support plate that can be moved up and down and rotated horizontally, and a feed plate reversing carrier that can be moved to a baking section. 2. The device according to claim 1, wherein the support plate is raised and lowered and horizontally rotated using a hydraulic cylinder. 3. The apparatus according to claim 1 or 2, wherein the printing section is provided with a rubber sheet pasting device for pressing the original plate and the photosensitive material against the glass plate. 4 Punch holes punched at appropriate locations in the original plate and photosensitive material are fitted to register pins to align and overlap the photosensitive material.The photosensitive material is vacuum-adsorbed to the side of the printing section, and the photosensitive material is lifted and lowered and rotated horizontally. A feeding plate reversing carrier is provided with a supporting plate that can be moved to the printing section, and an original plate feeding/discharging device is provided that can vacuum-adsorb the original sheet and move it to the printing section. A receiving plate that opens towards the printing section side and an opening continuing to the open side of the receiving plate are provided between the original sheet supplying and discharging device, and the original sheet supplying and discharging device adsorbs the original sheet in the printing section. 1. A point-symmetrical printing apparatus, characterized in that when the original sheet is moved out of the printing section, the original sheet is guided by the receiving plate and falls into the opening. 5 Place the discharge plate carrier for taking out the photosensitive material after baking.
Claim 4 further comprising:
The equipment described in section. 6. The device according to claim 4 or 5, wherein the base of the sliding plate is fixed to the edge of the opening on the side of the burning part.