JPH032909Y2 - - Google Patents

Description

[Detailed explanation of the idea] In the plate-making process, there is a task of positioning and printing the image on the film manuscript (hereinafter referred to as the "manuscript image") on the plate surface. Determine the printing position of the original image, and according to this, register marks, commonly called "register marks", are marked at the required positions on the plate surface, and the register marks written in this way are marked. ,
The procedure is to superimpose the photographed register mark around the original image, paste the film original onto the surface of the plate, and then put it through a contact printing machine. Conventionally, the work of scribing register marks on the surface of the plate material was done manually using a scribing mount, but recently a scribing device that automates this process has been put into practical use. It became.

By the way, during the printing process, the printing plate on which the original image has been printed is wrapped and fixed around the plate cylinder of the printing press. It is made by hooking pin holes made on the plate material prior to the printing process, and therefore determines the mounting position of the printing plate on the plate cylinder (in other words, the printing position of the original image on the printing paper surface). are regulated by the pin holes, so drilling the pin holes at accurate positions on the plate material is an important and essential condition.

To carry out this work (punching pin holes),
First, a dedicated device for punching pin holes (i.e., a "puncher") was developed, followed by the development of a puncher that was capable of both punching pin holes and performing manual scribing work. ,
Furthermore, the above-mentioned automatic scribing device, which automates the scribing portion of the scribing puncher, has been added to the present invention.

However, in the case of a single device that has punching and scribing functions (hereinafter referred to as a "combined device"), there is a problem with the detrimental effect that the punching mechanism has on the scribing operation. That is, to explain this based on FIG. 1, as shown in FIG. Therefore, in order to carry out the intended work, as shown in FIG. At the same time, if the position of the plate material 4 in the X direction is regulated, the punch pin 1b of the punch mechanism 1 will be placed above the position of the pin hole to be provided in the plate material 4, so the punch mechanism 1 will be operated there. If this is done, pin holes can be punched out at predetermined positions on the plate material 4.

Therefore, the plate material 4 is fixed to the plate material support table 3 surface by any means such as adsorbing the plate material 4 to the plate material support table 3 surface, and then the marking mechanism 2 is activated and the writing instrument 2a is When marking register marks 5 as shown in the same figure, some of the register marks 5' may come too close to the female die 1a of the punch mechanism 1, causing the register marks 5 to be marked. - Regarding the mark 5', this will lead to a situation where it will no longer be possible to write lines with this device.

In this way, after the punch mechanism 1 has fulfilled its original function, it may itself become a hindrance to the scribing operation, which is the other function of the dual-purpose device. I have a problem.

Therefore, in the present invention, once a pin hole is punched in a plate material using a punch mechanism, the plate material is pushed out and moved a certain distance from the same punching position, thereby solving the above-mentioned problem.・In order not to interfere with the scribing work of the mark, in addition, at the moving position of the plate material, a pin is inserted from below into the pin hole formed as described above and locks the plate material at the same position. By arranging this pin, the fixing position of the plate material to the plate material support surface is regulated to a constant level by this pin, thereby making it possible to tighten the scribing position of the register mark on the plate material surface. In addition,
Providing this pin also provides the following advantages.

In other words, from an actual work point of view, the formation of pin holes and the scribing of register marks on the plate material are performed each time (for each sheet) by punching pin holes and marking the register marks using the above-mentioned dual-purpose device. In some cases, the scribing work is performed as a series of operations, or with a separately equipped puncher, or with a dual-purpose device, only the punch mechanism is activated first, and the four types of printing for forming yellow, red, indigo, and black plates are performed. Plate materials are stacked one on top of the other, and pin holes are punched out in them all at once (the pin hole formation position is made stricter, and in turn, the image printing and printing position on each plate is made constant), and then In some cases, the dual-purpose device is dedicated to scribing work for register marks, and in the latter case, since the pin holes have already been formed, the device of the present invention can be used to If the pin is operated (moved upward) (the pin is exposed above the plate support surface) and the pin hole formed in the plate is hooked to this pin, the plate will be moved by the pin. Because the position is regulated and it is locked to the plate support surface,
For example, if at the same time the plate material is fixed on the plate support surface using any fixing means, such as by adsorbing the plate material to the plate support surface, the scribing work can be performed immediately. This makes it possible to improve the efficiency of marking work without impairing the accuracy of setting the position of the printing plate, in other words, the accuracy of the marking position of register marks on the surface of the printing plate.

Hereinafter, the present invention will be described in detail based on the accompanying drawings (FIGS. 2 to 4) showing one embodiment.

Reference numeral 6 denotes a plate material retainer that is connected and fixed to the piston rod 70 of the air cylinder 7, and by operating the air cylinder 7, the extension of the piston rod 70 (that is, the air cylinder 7 The position of the plate material support table 3 is moved in the Y direction by a stroke of .

In addition, this air cylinder 7 is equipped with a rack 8.
Since the rack gear 9 is meshed with the rack 80, if the rack gear 9 is rotated using the operation part 90, the support base 8 , the air cylinder 7 fixed thereto, and the plate retainer 6 connected and fixed to the piston rod 70 are integrally moved by a minute distance in the Y direction of the plate support 3. get.

10 is a punch mechanism, and a punch pin 100
is connected and fixed to the piston rod 102 of the air cylinder 101, so when the air cylinder 101 is operated, the piston rod 102 is connected and fixed.
Due to the extension of the rod 102, the punch pin 1
00 moves upward until it hits the female die 103, and the plate material 4
Punch out a pin hole.

The air cylinder 101 has a structure in which the extrusion and return of the piston rod 102 are performed in one action, and the punch pin 100 is used to punch a pin hole into the plate material 4 as described above.
is pulled back to the pre-operation position as the piston rod 102 is pulled back into the air cylinder 101 again, and is disengaged from the plate material 4 in which the pin hole has been punched.

Reference numeral 11 denotes a plate material locking pin, which is connected and fixed to the piston rod 120 of the air cylinder 12. When the air cylinder 12 is operated, the air plate material locking pin 11 is connected to the piston rod 120 of the air cylinder 12. An upward movement corresponding to the stroke of the cylinder 12 is applied, and the plate material 4 is inserted from below into the pin hole placed at the same position (this mechanism will be explained in detail in the section explaining the operating instructions in the next step). The material 4 is locked to the surface of the plate material support base 3.

In this embodiment, this plate material locking pin 11
is an air jet that reciprocates the plate material stopper 6 a certain distance from the punch pin 100 on the same line in the Y direction as the punch pin 100 and the surface of the plate material support table 3.
It is arranged at the same distance as the stroke of the cylinder 7.

Hereinafter, the operating procedure of the device of the present invention will be explained.

First, based on the distance from the edge of the plate material to the pin hole formation position of the plate material in the work, if necessary, operate the operation part 90 of the rack gear 9 to stop the plate material. Finely adjust the position of body 6 and punch.
The distance between the pin 100 and the plate material retainer 6 is set.

Therefore, as shown in FIGS. 2 and 3, the plate material 4
The position of the plate 4 in the Y direction is set by abutting the end of the plate 4 on the side where the pin hole is formed against the plate retainer 6. At the same time, the position of the plate 4 in the X direction can be set by any means ( (not shown in the figure as it is not directly related to the present invention).

As a result, the punch pin 100 is placed on the pin hole forming position of the plate material 4, so the punch mechanism 1
The air cylinder 101 of No. 0 is operated and a pin hole is punched into the plate material 4 using the punch pin 100.

The punch pin 100 that punched the pin hole automatically returns to its pre-operation position, so the air cylinder 7 is continuously operated to push out the plate retainer 6 a certain distance and form the pin hole in the plate 4. the side edge,
The punch mechanism 10 is disposed at a position inside the plate material support table 3 (FIG. 4).

When this operation is performed, the plate material 4 punched in the above manner is placed on the plate material locking pin 11 disposed at the same distance as the stroke of the air cylinder 7 with respect to the punch pin 100. Since the pin hole 40 is arranged, if the air cylinder 12 is operated there and the plate material locking pin 11 is moved upward, the pin 11 will penetrate the pin hole 40 of the plate material 4. The plate material 4 is locked to the surface of the plate material support base 3.

After that, the plate material 4 is fixed to the plate material support table 3 surface by any means such as using a suction means to adsorb the plate material 4 to the plate material support table 3 surface, and then the air cylinder 7 is attached. The plate material stopper 6 is returned to the pre-operation position by operating in the opposite manner to the above, and the marking mechanism (not shown) is activated to write register marks 5 on the 4th surface of the printing material according to the required procedure. Bye.

In addition, for example, with a separately equipped puncher,
If the plate material has pin holes formed in advance, operate only the air cylinder 12 to move the plate material locking pin 11 upward, and then use this to engage the pin hole formed in the plate material. By doing this, the plate material is locked to the plate material support base, and the rest is as described above.
All that is required is to fix the plate material to the plate support base and to write register marks by operating the scribing mechanism.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the relationship between the punch mechanism and register mark scribing positions in a conventional device, Fig. 2 and the following are illustrations of embodiments of the present invention, Fig. 2 is a top view of the device of the present invention, and Fig. 3 4 is an explanatory diagram of the main mechanism, and FIG. 4 is an explanatory diagram of the operation. The symbols are: 1, 10...punch mechanism, 2...scoring mechanism, 3...plate support base, 4...plate material, 5...
Register mark, 6... Plate material receiver, 7...
Air cylinder, 8... Support stand, 9... Rack gear, 11... Plate material locking pin.

Claims (1)

[Scope of Claim for Utility Model Registration] A plate support that is for receiving the pin hole forming side end of the plate material and is supported so as to be movable back and forth a certain distance in the direction of the plate support table. a pin hole punching means; and a plate locking device which is supported at a position inside the plate support surface of the pin hole punching means so as to be able to protrude and retract from the plate support surface. The punch pin of the pin hole punching means and the plate locking pin are on the same line in the driving direction of the plate material retainer and are separated by the same distance as the driving distance of the plate material retainer. A device for punching and locking a plate material, characterized in that the device is arranged in a manner that the plate material is punched and locked.