JPH0695394A - Inclination type composer - Google Patents

Abstract

PURPOSE:To prevent the fall of an original after discharging the original onto an original discharge base by providing the bottom end of this original discharge base with an original receiving part which extends forward at an angle gentler than the angle of inclination of this original discharge base and has a stopper at its front end. CONSTITUTION:The bottom end of the original discharge base 41 of the inclination type composer having the inclined original discharge base 41 is provided with the original receiving part 51 which extends forward at the angle theta' gentler than the angle theta of inclination of this original discharge base 41 and has the stopper 47 at its front end. If the conventional original discharge base 41 without having such original receiving part 51 is used, the front end of the original discharge base 41 exists on the extension line of the inclination of the original discharge base 41 and, therefore, the bottom end of the base film is laid down forward by the deflection, if generated, on the base film by the weight, etc., of the original stuck to the base film until finally the base film is dropped beyond the stopper 47. The falling down of the base film forward does not arise and the base film is surely detained to the original receiving part 51 in the case of this embodiment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a document discharge table in a tilt type platemaker.

[0002]

2. Description of the Related Art Generally, a tilt type plate-making machine having a tilted document discharge tray is known. In this type, the board plate used as a photosensitive material holder is also attached in an inclined state, and the printing light source movably supported on the board plate via the frame is also attached in an inclined state. It has the advantages that it is easy to perform the breeding work and the installation space for the breeding machine is small.

[0003]

However, in the conventional structure, since the document discharge tray is inclined, the document discharged there is tilted forward and the document discharge tray is inclined, especially when the document is heavy. There is a problem that it will get over the stopper at the lower end and fall.

In order to solve this, in the past, measures have been taken such as making the inclination of the original discharge table gentle, but this cannot reliably prevent the original from falling.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art and to surely prevent the document from dropping after being discharged onto the document discharge table. To provide.

[0006]

In order to achieve the above object, the present invention relates to an inclined type engraving machine having a slanted document discharge table, and a tilt angle of the document discharge table at the lower end of the document discharge table. It is characterized in that a document receiving portion having a stopper is provided at the front end thereof extending forward at a more gentle angle.

[0007]

According to the present invention, since the leading edge of the document discharge tray extends forward at an angle smaller than the tilt angle of the document discharge tray, the tip of the base film stored there is inclined at the document discharge tray. Since the base film is always placed in front of the original film, the base film does not have a bulge that bulges forward, and the base film transferred onto the document discharge tray does not fall forward and is reliably stored in the document receiving section. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an inclined type plate making machine according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, for example, the slant type engraving machine is mounted on a machine frame 31 in a state where a board plate 32 is slanted, and the front surface of the board plate 32 is slanted at the same slanting angle as the board plate 32. A frame 33 is disposed apart from the board plate 32, and the frame 33 is configured to be movable in the lateral direction with respect to the board plate 32 on rails 34 arranged in the horizontal direction above and below the machine frame 31, respectively. ing.

The frame 33 has a guide rail 3 extending vertically.
5 is arranged, and the slide frame 3 is placed on the guide rail 35.
6 is mounted so as to be movable in the vertical direction. A document frame portion 37 having a transparent glass surface and a printing light source 38 are mounted on the slide frame 36, and a suction hole (not shown) connected to a decompression pump is provided in the peripheral edge portion of the glass surface of the document frame portion 37. Are arranged. Further, a rubber bank is arranged on the peripheral edge of the document frame portion 37 on the side facing the board plate 32.

The board plate 32 is used as a photosensitive material holder 39. On the left side of the photosensitive material holder 39, the lower board plate inclined similarly to the photosensitive material holder 39 serves as a document supply table 40, and the upper board. The plate is the document discharge table 41
Used as.

The photosensitive material holder 39 and the document supply table 4
0, the document discharge table 41 is composed of separate members. The photosensitive material holder 39 is, for example, a board plate inclined at 70 °, and is movable back and forth so as to be able to approach the document frame portion 37 in an inclined state by an air cylinder or the like arranged on the back surface side. Like the photosensitive material holder 39, the original supply table 40 is inclined at 70 °, for example, and is movable in the front-rear direction so that it can approach the original frame 37 in an inclined state by an air cylinder.

Unlike the document feeding table 40, the document discharging table 41 is not movable back and forth by an air cylinder. The document discharge table 41 is fixed to the machine casing 31 via a fixing mechanism (not shown). However, the inclination angle is, for example, 68 ° so that the photosensitive material holder 39 and the document supply table 4 are
The angle can be changed to a gentler angle than 0. That is, the angle of the document discharge table 41 is set to the base film 43 as described later.
It can be changed by hand depending on the condition.

The original 42 is attached to a transparent synthetic resin base film 43 in advance, and the engaging holes at both ends of the base film 43 are locked to the engaging pins 44 of the original supply table 40, thereby It is arranged on the supply table 40. On the other hand, the photosensitive material 45 is previously fixed to the photosensitive material holder 39.

The document frame 37 and the printing light source 38 are arranged on the front surface of the document supply table 40, and this position is the starting position.
The original feeding table 40 in the inclined state is moved forward by an air cylinder or the like arranged on the back side, that is, the original frame 3
7, the base film 43 is adsorbed by the suction holes in the peripheral portion of the glass surface of the document frame portion 37. After that, the document supply table 40 retracts and returns to the original position.

Next, the frame 33 moves toward the photosensitive material 45, and the original frame portion 37 moves upward on the frame 33 so that the original frame portion 37 carrying the base film 43 is in front of the photosensitive material 45. Be brought. Here, the photosensitive material holder 39
Moves forward, that is, approaches the document frame 37, and the photosensitive material 45
The pressure between the document frame portion 37 and the document frame portion 37 is reduced, and the base film 43 carrying the document 42 adheres to the photosensitive material 45. In that state, light is emitted from the printing light source 38 to print.

When the printing is completed, the reduced pressure state between the photosensitive material 45 and the document frame portion 37 is released, and the photosensitive material holder 39 is retracted. Next, the frame 33 and the document frame portion 37 are moved so that the document frame portion 37 comes to the position of the document discharge table 41,
When the suction pad 46 of the document discharge tray 41 extends forward to suck the base film 43, the suction pad 46 retracts in that state, and when the suction of the suction pad 46 is released, the base film 43 is discharged onto the document discharge tray 41. Then, the baking process ends.

A base film 43 to which an original 42 is attached
About 10 sheets are installed on the original supply table 40 at one time, and the sheets are sequentially subjected to the printing process one by one, and the baked base film 43 is accumulated on the original discharge table 41.

By the way, the base film 43 on which the original 42 is pasted has different strain strength depending on the thickness and the material, and the strain strength also depends on the size of the original 42 to be pasted. Therefore, depending on the thickness and material of the base film 43 and the size of the original 42 to be pasted, the strain of the base film 43 is weak, and when the base film 43 is placed on the stopper 47 of the original discharge table 41 and accumulated, the base film 43 falls forward. ,
It may fall from the document discharge table 41. Therefore, in order to prevent the base film 43 placed on the document discharge table 41 from falling forward and falling from the document discharge table 41, the following measures are taken.

That is, with reference to FIG.
At the lower end of 1, there is provided a document receiving portion 51 which extends at an angle θ ′ that is less than the inclination angle θ of the document discharge table 41 and has a stopper 47 having a dogleg-shaped cross section at its tip.

When the conventional document discharge tray 41 having no such document receiving portion 51 is used, as shown in FIGS. 6A to 6C, due to the weakness of the base film 43 and the weight of the document 42 attached thereto, etc. The lower end of the base film 43 falls forward, and finally gets over the stopper 47 and falls. That is, in the conventional configuration, the document discharge table 41
Since the front end 41a of the document is positioned on the extension line of the inclination of the document discharge table 41, when the base film 43 is bent due to the weight of the document 42 attached to the base film 43,
Due to the bending, the lower end of the base film 43 falls forward and finally gets over the stopper 47 and falls.

Thus, according to this embodiment, FIGS.
As shown in FIG. 7C, the leading end 51 of the document discharge tray 41 extends forward at an angle θ ′ that is less than the inclination angle θ of the document discharge tray 41, so that the tip of the base film 43 stored there is the original discharge tray 41. Since the base film 43 is always placed in front of the inclination of 41, the base film 43 does not have a bulge that bulges forward, and the base film 43 transferred onto the document discharge table 41 cannot be bent.
Are reliably stored in the document receiving portion 51 without falling forward.

Further, according to this, in the conventional case, 180 μm
Base film 43 whose thickness was the limit of use
In addition, since the base film 43 having a thin thickness of about 150 μm can be used, the light transmittance can be improved and the exposure time can be shortened by about 10% as compared with the conventional one.

Further, the original 4 to be attached to the base film 43
There is no limitation on the weight of 2 and even if there is a curl due to the rolling direction at the time of manufacturing the base film 43,
Since the technical restrictions such as pasting the original in the direction where curling is difficult are eliminated, the workability is extremely good.

4 and 5 show other embodiments, respectively.

The document discharge table 71 shown in FIG.
2 starts from an upper portion than that of the document discharge table 41 in FIG. 2, and the length 1 of the document receiving portion 73 is long. Further, the document discharge table 75 of FIG.
The length l of the document receiving portion 73 is substantially the same as that of FIG.
The shape of is almost linear.

Regardless of which shape is used, the base film 43 can be reliably stored as compared with the conventional one.

[0028]

As is apparent from the above description, according to the present invention, the front end portion of the document discharge tray extends forward at an angle less than the inclination angle of the document discharge tray, and the stopper is provided at the tip thereof. Since the original document receiving portion is provided, the base film transferred onto the original document discharge tray does not fall forward and is reliably stored in the original document receiving portion, so that it does not drop from there.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a tilt type plate making machine of the present invention.

FIG. 2 is a side view of a document discharge table.

3A to 3C are cross-sectional views showing a state in which a base film is stored on a document discharge table.

FIG. 4 is a cross-sectional view showing another embodiment of the document discharge tray.

FIG. 5 is a cross-sectional view showing another embodiment of the document discharge tray.

6A to 6C are cross-sectional views each showing a state in which a base film is stored in a conventional document discharge tray.

[Explanation of symbols]

 33 frame 37 document frame 38 printing light source 39 photosensitive material holder 40 document supply table 41, 71, 75 document discharge table 43 base film 47 stopper 51, 73, 77 document receiving section

Claims (1)

[Claims] 1. A tilt type plate-making machine having a slanted document discharge table, which extends forward at a lower end portion of the document discharge table at an angle less than an inclination angle of the document discharge table and has a stopper at its tip. An inclined type plate machine, which is provided with a document receiving portion having a.