JPH08114926A - Film feeding and ejecting system for photocomposing machine - Google Patents

Abstract

PURPOSE: To provide a film feeding and ejecting system for a photocomposing machine where a base film is surely taken out one by one from a film housing part. CONSTITUTION: A film supply base 31 holding only one base film 33 taken out to a board 22 is disposed, the film housing part 30 stocking plural base films supplied to the film supply base 31 is adjacently disposed, and a film feeding and ejecting base 53 taking out the base film one by one from the film housing part 30 and transferring it to the film supply base 31 is disposed, then plural film sucking pads 57 sucking the base film are disposed on the film feeding and ejecting base 53. A pressing member for pressing the surface of the base film stocked in the film housing part is formed near the film sucking pad 57 on the film feeding and ejecting base 53.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film feeding / discharging system for a plate-making machine, and more particularly to a plate-making machine capable of preventing two base films from being taken in an inclined type plate-making machine. Regarding the film supply / discharge system

[0002]

2. Description of the Related Art Generally, an engraving machine is known in which a base film on which a document is pasted is superposed on a photosensitive material on a board and the original is printed on the photosensitive material.

In this type, a film supply table for stocking a plurality of base films to be taken out on a board plate is provided, and the base films are sucked from the film supply table one by one and automatically taken out. ing.

However, in such a film feeding / discharging system of a conventional plate-making machine, since the original is stuck on the base film, when the original is automatically taken out depending on the size and thickness of the original. There is a problem in that the position of the base film is misaligned, or two base films are taken in some cases.

Therefore, the applicant has provided a film accommodating portion for stocking a plurality of base films, adsorbs the base films in the film accommodating portion one by one, takes them out, and transfers them to a film supply table to supply the film. We have developed a film feeding / discharging system for an intaglio printing machine, in which a base film on a stand is superposed on a photosensitive material and an original is printed on the photosensitive material (Japanese Patent Application No. 5-172219).

[0006]

However, in the film feeding / discharging system of the plate making machine, although two base films are not picked up from the film supply table, each of the films stored in the film storing section is not affected. Since the base film may adhere due to static electricity or the like, there is a problem that when the base film is adsorbed from the film accommodating portion, the two base films may be adsorbed.

Further, in the one already proposed by the applicant, the film supply / discharge table is provided with a discharge cover for receiving the base film after being printed on the board, but this discharge cover is large and heavy. However, since the discharge cover must be removed at the time of maintenance of the film suction pad of the film supply / discharge table, there is a problem that the removal work is extremely difficult.

The present invention has been made in view of the above points, and it is possible to surely take out the base films one by one from the film accommodating portion, and to easily perform maintenance of the film suction pads. It is an object of the present invention to provide a film feeding / discharging system.

[0009]

In order to achieve the above object, a film feeding / discharging system for a plate-making machine according to the invention of claim 1 superimposes a base film having an original stuck on a photosensitive material on a board plate. In the film feeding / discharging system of the stencil printing machine, the original film of the base film is printed on the photosensitive material, and the film supply table for holding only one base film taken out on the board plate, and the film supply table A film accommodating unit that stocks a plurality of base films to be supplied, and moves between the film accommodating unit and the film supply table, and takes out the base films one by one from the film accommodating section and transfers them to the film supply table. And a film supply / discharge base, which is provided with a plurality of film adsorption pads for adsorbing the base film,
In the vicinity of each film suction pad of the film feeding / discharging table, a pressing member for pressing the surface of the base film stocked in the film storage unit is arranged when the base film is sucked in the film storage unit. is there.

A film feeding / discharging system for a plate-making machine according to a second aspect of the present invention is a film supply table for holding only one base film taken out on a board, and a base film supplied to the film supply table. A film storage unit for stocking a plurality of sheets, moving between the film storage unit and the film supply base, and taking out the base films one by one from the film storage unit and transferring them onto the film supply base, A film feeding / discharging base having a discharging cover for receiving the base film after being printed on the board, and the discharging cover of the film feeding / discharging base is vertically divided into two parts. .

[0011]

According to the film feeding / discharging system of the breeding machine according to the first aspect of the present invention, the pressing member is arranged in the vicinity of the film suction pad, and when the base film is sucked by the film suction pad. Since the holding member holds the surface of the base film and sucks the base film by the film suction pad, only the portion of the first base film sucked by the film suction pad is lifted. As a result, a gap is formed between the base film of the second sheet and air can be introduced into this gap portion to reliably separate the first and second base films. There is no possibility of picking.

According to the film feeding / discharging system of the plate-making machine according to the second aspect of the present invention, since the discharge cover is divided into the upper and lower parts, at the time of maintenance of the film suction pad,
Even if the discharge cover is large and heavy, it is sufficient to remove one of the discharge covers, which facilitates maintenance.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

1 to 4 show an embodiment of a film feeding / discharging system for a plate-making machine according to the present invention, and 21 denotes a machine casing. On the front surface of the machine frame 21, a board plate 22 is arranged in an inclined state.
It can be moved back and forth in an inclined state by an air cylinder or the like arranged on the back surface. A frame 23 inclined at the same inclination angle as the board plate 22 is arranged on the front surface of the board plate 22 so as to have a predetermined gap from the board plate 22, and the frames 23 are respectively provided above and below the machine frame 21. It is movable in the lateral direction with respect to the board 22 along rails 24 arranged in the lateral direction. Also,
A pair of guide rails 25 extending in the vertical direction are arranged on the frame 23, and a slide frame 26 is mounted on the guide rails 25 so as to be vertically movable along the guide rails 25. There is. The slide frame 26
A document frame 27 having a transparent glass 41 and a light source housing 28 are mounted on the.

FIG. 2 is a view of the original frame 27 as viewed from the inside, that is, from the board 22. A frame member 40 having a quadrangular shape is provided on the inner peripheral edge of the original frame 27. There is. A transparent glass 41 is fitted inside the frame member 40, and the frame member 40 has an adsorption groove 42 for adsorbing the transparent base film 33 made of synthetic resin.
Is provided.

The suction groove 42 has an upper half 42a extending in parallel along the upper half of the glass 41 and a lower half extending in parallel along the lower half of the glass 41. Half 4
2b, and the suction groove 42 further has a plurality of orthogonal portions 44 extending toward the glass 41 so as to be orthogonal to the sides thereof. In addition, the suction groove 4
2, a suction hole 45 connected to a decompression pump (not shown)
Are formed on both side portions of the central portion of the document frame 27, and positioning bushes 46 for engaging with the engaging pins of the film supply table 31 are formed.

Further, the board plate 22 is used as a photosensitive material holder 29 for holding the photosensitive material 35. As shown in FIG. A table 31 is provided. Further, the film supply table 31 is movable back and forth by an air cylinder 95 housed inside the machine frame 21.

A film accommodating cassette 51 is arranged in the film accommodating portion 30 as shown in FIG.
The film storage cassette 51 has, for example, a maximum of 32
A sheet of base film 33 is housed. The base film 33 is made of a transparent synthetic resin having a thickness of about 0.18 mm, and the original 32 (FIG. 1) having a thickness of about 0.10 mm is attached to the base film 33. There is.

As shown in FIG. 8, the film accommodating cassette 51 is framed in a rectangular shape having a side of about 750 mm, and the base film 33 is accommodated therein. Handles 20 are provided on both side edges of the film storage cassette 51.
0 is provided, and this handle 200 can suspend the film storage cassette 51 when carrying the film storage cassette 51, and can also be carried horizontally.
In any case, it is provided long on one side of the film storage cassette 51 so that it can be easily held.

A bar 201 for preventing the base film 33 from falling is attached so that the base film 33 does not drop when the film storage cassette 51 is suspended and carried. The bar 201 is detachably attached to the film storage cassette 51 by a one-touch type stopper 203. For example, by fixing a pin (not shown) to the tip of the stopper 203, providing a hole through which the pin passes in the film accommodating cassette 51, and rotating the stopper 203 after passing the pin, The one that can be fixed with one touch may be used.

A film feeding / discharging table 53 is arranged in front of the film accommodating section 30. The film feeding / discharging table 53 is supported by a frame 55 and is fed to the film supply table 31 and the film accommodating section 30. It is supposed to be movable between and. That is, a nut 81 is fixed to the lower surface side of the frame 55, and a screw rod 83, which extends in the vertical direction and whose upper and lower ends are rotatably supported by bearings 85, is screwed into the nut 81. Has been done. A sprocket 87 is attached to the lower end of the screw rod 83, and a sprocket 91 of a motor 93 is connected to the sprocket 87 via a chain 89.
Then, by driving the motor 93, the screw rod 83 is rotationally driven via the sprockets 87, 91 and the chain 89, whereby the frame 5
5 and the film feed / discharge table 53 reciprocate in the axial direction of the screw rod 83. The motor 93 and the screw rod 83 may be directly connected by a coupling (not shown). Reference numeral 97 denotes a dust removing roller, which includes a lower roller 97a and an upper roller 97b.

According to this embodiment, however, as shown in FIGS. 3 and 5 to 7, a plurality of films connected to the vacuum generating means (not shown) are provided on the inner surface of the film supply / discharge table 53. A suction pad 57 is provided. The plurality of film suction pads 57 include a film suction pad 57a that catches the upper and lower end portions of the side edges of the base film 33, and a film suction pad 57 that catches the substantially central portion of the side edges.
b, a rubber suction member 58 is detachably attached to the tip of each film suction pad 57a, 57b. In the vicinity of each film suction pad 57, a pressing member 60 slightly protruding from the tip of the film suction pad 57 is formed. The film suction pad 57 and the pressing member 60 are respectively the spring 5
It is urged downward by 7a and 60a.

Further, in this embodiment, as shown in FIGS. 6 and 7, in the film suction pad 57, when the rubber suction member 58 contacts the base film 33, the vacuum state becomes high and the spring 57a. It is designed to momentarily rise against the spring force of. According to this, as will be described later, since the pressing member 60 does not press the surface of the base film 33, a space is created between the first and second base films 33 due to the rise of the film suction pad 57. Then, the second base film 33 is peeled off. In addition, after this is peeled off, the film feeding / discharging table 53 is entirely lifted, and the film feeding / discharging table 53 is removed.
Moves from the film storage unit 30 to the film supply table 31.

A discharge cover 58 is provided on the outer surface of the film supply / discharge table 53, and a plurality of film discharge pads 59 connected to a vacuum generating means (not shown) are moved forward and backward on the discharge cover 58. It is arranged freely.

Further, at the lower end edge of the discharge cover 58 of the film feeding / discharging table 53, a receiving portion 61 for holding the base film 33 is formed to project, and the discharge cover 58 is vertically moved from a substantially central portion. Divided into 2
The two cover parts 58a and 58b are separated from each other.

Next, the operation of this embodiment will be described.

First, referring to FIG. 4, the film feed / discharge table 5
3 is made to stand by above the film accommodating part 30, and only one base film 33 in the film accommodating cassette 51 is adsorbed using the film adsorption pad 57, as shown in FIG.

At this time, in this embodiment, the pressing member 60 is arranged in the vicinity of the film suction pad 57, and the pressing member 60 serves as the base film 33.
Since the base film 33 is sucked by the film suction pad 57 with the surface of the base film 33 held down, only the portion of the first base film 33 sucked by the film suction pad 57 as shown in FIG. Is lifted,
As a result, a gap is formed between the base film 33 and the second base film 33, and air is introduced into the gap portion to reliably separate the first and second base films 33. It does not happen that two sheets are taken.

Then, the motor 93 is driven to move the film feeding / discharging base 53 upward to position it in front of the film supply base 31, and the suction by the film suction pad 57 is stopped to cause the film supply base 31 to move. The base film 33 is transferred. On the other hand, the photosensitive material 35 (see FIG. 1) is
It is fixed to the photosensitive material holder 29 in advance.

Then, the original frame 27 and the light source housing 28
Is moved to the front surface of the film supply table 31, and this position becomes the starting position.

From this state, the air cylinder 95 (see FIG. 4) is driven to move the inclined film supply table 31 forward, that is, so as to approach the document frame 27, and the glass 41 of the document frame 27 is moved. The base film 33 located on the film supply table 31 is attracted to the original frame 27 by sucking through the suction holes 45 at the peripheral portion of the surface. After that, the film supply table 31 retracts and returns to the original position.

Next, the frame 23 moves along the rail 24 toward the photosensitive material 35, and at the same time, the original frame 27
Is moved along the guide rail 25, and the document frame 27 carrying the base film 33 is positioned in front of the photosensitive material 35. Here, the photosensitive material holder 29 is moved forward, that is, so as to approach the document frame 27, and the photosensitive material 3
The pressure between the document 5 and the document frame 27 is reduced, and the base film 33 carrying the document 32 comes into close contact with the photosensitive material 35. In this state, light is emitted from the light source of the light source housing 28, and predetermined printing is performed.

When the printing is completed, the reduced pressure state between the photosensitive material 35 and the document frame 27 is released, and the photosensitive material holder 29 is retracted.

Next, the frame 23 and the document frame 27 are moved so that the document frame 27 reaches the front surface of the film feeding / discharging table 53 above the film accommodating portion 30. Then, the film discharge pad 59 of the film supply / discharge table 53 is caused to project forward to suck the base film 33, and in this state, the film discharge pad 59 is pulled in and at the same time, the peripheral edge of the glass 41 is sucked up to now. The vacuum suction of the suction hole 45 that has been performed is released.

As a result, the base film 33 moves to the film feeding / discharging table 53 side, and then the film discharging pad 5
When the suction of 9 is released, the base film 33 receives the receiving portion 6
Locked at 1. The printing process is completed by such a series of operations.

Therefore, in this embodiment, when the base film 33 is sucked by the film suction pad 57, the pressing member 60 presses the surface of the base film 33, so that the first and second sheets are pressed. Even if the base film 33 is in close contact with the base film 33 due to static electricity or the like, the base film 33 can be reliably separated, and the base film 3
It is possible to reliably prevent the double picking of No. 3.

Since the suction member 58 of the film suction pad 57 is detachable, the base film 3
By the suction operation of No. 3, the suction member 58 which is most easily damaged can be easily replaced, and the maintenance can be easily performed.

Further, such a film suction pad 5
When the maintenance of No. 7 is performed, especially when performing maintenance of the film suction pad 57 located in the central portion, it is conventionally necessary to remove the discharge cover 58. Since the discharge cover 58 is relatively large and heavy, Although the removing work is extremely difficult, in the present embodiment, since the discharge cover 58 can be divided into two parts, by removing one of the divided discharge covers 58, the film suction pad 57 in the central portion can be removed. Can be exposed, and maintenance of the film suction pad 57 can be performed easily.

[0039]

As described above, in the film feeding / discharging system of the plate-making machine according to the invention of claim 1, when the base film accommodated in the film accommodating portion is adsorbed by the film adsorption pad, the surface of the base film is Since the pressing member is used for pressing, it is possible to reliably separate the first and second base films, and it is possible to surely prevent the two base films from being taken.

In the film feeding / discharging system for the plate-making machine according to the second aspect of the invention, since the discharge cover can be divided into two parts, one of the divided discharge covers can be removed to remove the film suction pad. It can be exposed, and the film suction pad can be easily maintained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a film feeding / discharging system of a plate making machine according to the present invention.

FIG. 2 is a view of a document frame of a platemaking machine as seen from the machine frame side.

FIG. 3 is a front view of the breeding machine.

FIG. 4 is a side view of the breeding machine.

FIG. 5 is a rear view of the film supply / discharge table.

FIG. 6 is a side sectional view of a film feeding / discharging table.

FIG. 7 is an explanatory view showing a film suction state by a film suction pad.

FIG. 8 is a plan view showing a film storage cassette.

[Explanation of symbols]

 21 machine frame 22 board plate 23 frame 26 slide frame 27 document frame 28 light source container 30 film container 31 film supply table 32 document 33 base film 51 film accommodating cassette 53 film feeding / discharging table 57 film suction pad 58 suction member 59 film discharge Pad 60 Holding member 61 Receiver

Claims (2)

[Claims] 1. A film feeding / discharging system for an intaglio machine, comprising: stacking a base film on which a document is pasted on a photosensitive material on a board and baking the original of the base film on the photosensitive material. Between the film supply table that holds only one base film taken out above, the film storage section that stocks a plurality of base films supplied to this film supply table, and between this film storage section and the film supply table And a film feeding / discharging table for taking out the base films one by one from the film accommodating section and transferring them to the film feeding table, and the film feeding / discharging table has a plurality of film suction pads for sucking the base film. Placed near the film suction pads on the film supply / discharge table, when the base film is sucked in the film storage unit, the film storage unit A film feeding / discharging system for a plate-making machine, characterized in that a pressing member for pressing the surface of the base film stocked in the plate is arranged. 2. A film feeding / discharging system for an intaglio machine, wherein a base film on which a document is pasted is superposed on a photosensitive material on a board, and the original of the base film is printed on the photosensitive material. Between the film supply table that holds only one base film taken out above, the film storage section that stocks a plurality of base films supplied to this film supply table, and between this film storage section and the film supply table And a film feeding / discharging table having a discharge cover for taking out the base films one by one from the film storing section and transferring them to the film supply table, and receiving the base film after being baked on the board plate. The film feeding / discharging system of a breeding machine, characterized in that the discharge cover of the film feeding / discharging table is divided into upper and lower parts.