JP2822812B2 - Inclined breeding machine - Google Patents

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 plate printing machine.

[0002]

2. Description of the Related Art In general, an inclined type plate printing machine having an inclined original discharge table is known. This type is also mounted with a board plate used as a photosensitive material holder in a tilted state, and a printing light source movably supported via a frame on this board plate is also mounted in a tilted state, There are advantages such as easy duplication work and a small installation space for the duplication machine.

[0003]

However, in the conventional configuration, since the document discharge tray is inclined, especially when the document is heavy, the document discharged there falls down to the front and the document discharge tray is slid. There is a problem that it falls over the stopper at the lower end.

In order to solve this problem, measures have been taken in the past, for example, by reducing the inclination of the document discharge table. However, this method cannot reliably prevent the document from dropping.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to reliably prevent a document from dropping after being discharged onto a document discharge table. Is to provide.

[0006]

To achieve SUMMARY OF to the above objects, the present invention provides a tilt-type殖版machine having a document ejection stand inclined, the lower end portion of the document ejection tray, the document discharge
The leading edge of the base film discharged to the table
Always placed forward of the slant and bulge forward of the base film.
Lamb deflection is formed on the discharged base film
In order to avoid this, a document receiving portion which extends forward at an angle smaller than the inclination angle of the document discharge table and has a stopper at the end thereof is provided.

[0007]

According to the present invention, the leading end of the original discharge tray extends forward at an angle smaller than the inclination angle of the original discharge tray. Since the base film is always placed on the front side, the base film does not bend forward and the base film transferred on the document discharge table does not fall forward and is reliably stored in the document receiving portion. .

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a tilt type printing machine according to the present invention.

As shown in FIG. 1, for example, an inclined type intaglio machine is attached to a machine frame 31 with a board plate 32 inclined, and a front surface of the board plate 32 is inclined at the same inclination angle as the board plate 32. A frame 33 is disposed at a distance from the board 32, and the frame 33 can be moved laterally with respect to the board 32 on rails 34 that are arranged horizontally above and below the machine frame 31. ing.

A guide rail 3 is provided on the frame 33 in the vertical direction.
5 are arranged, and the slide frame 3
6 is mounted movably in the vertical direction. A document frame 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 on the periphery of the glass surface of the document frame 37. Is arranged. In addition, a rubber bank is disposed on a peripheral portion of the document frame portion 37 on a 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, a lower board plate inclined similarly to the photosensitive material holder 39 serves as a document supply table 40, and an upper board is provided. 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 made of a separate member. The photosensitive material holder 39 is made of, for example, a board plate inclined at 70 °, and is movable back and forth so as to be able to approach the document frame 37 in an inclined state by an air cylinder or the like arranged on the back side. The document supply table 40 is inclined at, for example, 70 ° like the photosensitive material holder 39, and is movable in the front-rear direction so as to be able to approach the document frame 37 while being inclined by an air cylinder.

The document discharge table 41 is not made movable back and forth by an air cylinder like the document supply table 40. The document discharge table 41 is fixed to the machine frame 31 via a fixing mechanism (not shown). However, the inclination angle is, for example, 68 °, and the photosensitive material holder 39 and the document supply table 4
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 in advance depending on the condition.

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

A document frame 37 and a printing light source 38 are arranged on the front of the document supply table 40, and this position is a starting position.
The document supply table 40 in the inclined state is moved forward by an air cylinder or the like disposed on the back side, ie, the document frame 3
7, the base film 43 is sucked by the suction holes in the peripheral edge of the glass surface of the document frame 37. Thereafter, the document supply table 40 retreats and returns to the original position.

Next, the frame 33 moves toward the photosensitive material 45, and the document frame 37 moves upward on the frame 33, so that the document frame 37 carrying the base film 43 is placed on the front surface of the photosensitive material 45. Brought. Here, the photosensitive material holder 39
Moves forward, that is, approaches the original frame portion 37, and the photosensitive material 45
The space between the document and the document frame 37 is decompressed, and the base film 43 carrying the document 42 comes into close contact with the photosensitive material 45. In this state, light is emitted from the printing light source 38 to perform printing.

When the printing is completed, the reduced pressure state between the photosensitive material 45 and the document frame 37 is released, and the photosensitive material holder 39 retreats. Next, the frame 33 and the document frame 37 move so that the document frame 37 comes to the position of the document discharge table 41,
When the suction pad 46 of the document discharge table 41 extends forward and sucks the base film 43, the suction pad 46 retreats in this state, and when the suction of the suction pad 46 is released, the base film 43 is discharged onto the document discharge table 41. Then, the printing process is completed.

A base film 43 to which a document 42 is attached
About ten sheets are placed on the document supply table 40 at a time, and are subjected to the printing process one by one one by one. The printed base film 43 is stored in the document discharge table 41.

The strength of the stiffness of the base film 43 on which the original 42 is to be attached varies depending on the thickness and the material, and the strength of the stiffness varies depending on the size of the original 42 to be attached. Therefore, depending on the thickness and material of the base film 43 and the size of the original 42 to be stuck, the stiffness 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. ,
The document may drop from the document discharge table 41. Therefore, according to the present embodiment, the following measures are taken to prevent the base film 43 placed on the document discharge table 41 from falling forward and falling from the document discharge table 41.

That is, referring to FIG.
An original receiving portion 51 is provided at the lower end of the document receiving portion 51 and extends at an angle θ ′ smaller than the inclination angle θ of the original discharge table 41, and has a stopper 47 having a V-shaped cross section at its tip.

When a conventional document discharge table 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 stuck thereon, etc. The lower end of the base film 43 falls forward, and eventually falls over the stopper 47. That is, in the conventional configuration, the document discharge table 41
Is positioned on an extension of the inclination of the document discharge table 41, and if the base film 43 is bent due to the weight of the document 42 attached to the base film 43,
The lower end of the base film 43 falls forward due to the bending, and finally falls over the stopper 47.

Thus, according to this embodiment, FIGS.
3C, the leading end 51 of the document discharge table 41 extends forward at an angle θ ′ that is smaller than the inclination angle θ of the document discharge table 41. Since the base film 43 is always placed forward of the inclination of the base film 43, the base film 43 does not bend forward and expand.
Are reliably stored in the document receiving portion 51 without falling forward.

In addition, according to this, conventionally, 180 μm
Base film 43 whose thickness is 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 is improved, and the exposure time can be shortened by about 10% as compared with the conventional one.

The original 4 to be pasted on the base film 43
2 is no longer limited, and even if there is curl due to the rolling direction during the production of the base film 43,
Since technical restrictions such as pasting a manuscript in a direction in which curling is difficult are eliminated, workability is extremely improved.

FIGS. 4 and 5 show other embodiments.

The document discharge table 71 shown in FIG.
Starts from above the document discharge table 41 in FIG. 2, and the length l of the document receiving portion 73 is longer. Also, the document discharge table 75 shown in FIG.
4 is substantially equal to that of FIG.
Is almost linear.

Regardless of the shape, the base film 43 can be stored more reliably than the conventional one.

[0028]

As is apparent from the above description, according to the present invention, the front end portion of the document discharge table extends forward at an angle smaller than the inclination angle of the document discharge table, and the stopper is provided at the front end. Since the original receiving section is provided, the base film transferred onto the original discharge table does not fall forward and is securely stored in the original receiving section, so that the base film does not fall from the original receiving section.

[Brief description of the drawings]

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

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

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

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

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

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

[Explanation of symbols]

 33 Frame 37 Document frame part 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 part

Claims (1)

(57) [Claims] 1. A tilt-type殖版machine having a document ejection stand inclined, the lower end portion of the document ejection tray, the document discharge
The leading edge of the base film discharged to the table
Always placed forward of the slant and bulge forward of the base film.
Lamb deflection is formed on the discharged base film
A tiltable plate printing machine characterized in that a document receiving portion that extends forward at an angle smaller than the tilt angle of the document discharge table and has a stopper at the end thereof is provided.