JPH055560Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention provides a reference line for regulating the placement position of the film when placing the film for pattern exposure on the printing plate. A reference hole used for regulating the printing plate position when drawing and exposing, and
When attaching the printing plate to the plate cylinder of the printing press after plate making is completed,
This invention relates to a drawing machine with a punch that punches a reference hole for regulating the mounting condition of the drawing machine.

[Conventional technology]

Such a drawing machine with a punch allows for accurate reference line drawing and the relative relationship between the reference line and each reference hole.
In order to save labor, it has been commonly used in recent years, and after placing the printing plate on the base plate and fixing it by vacuum suction, drawing the reference line with an XY recorder-like drawing mechanism, A group of punch blocks provided on the lower side of the base plate are used to punch reference holes for exposure and for the plate cylinder attachment side.

[Problem that the invention attempts to solve]

However, since the reference hole for the plate cylinder mounting bottom side is also drilled at the same time above the base plate, if a punch block is provided above the base plate, this will protrude above the base plate and downward from the base plate surface, so the drawing mechanism When drawing a reference line on the upper side of the printing plate, the horizontal arm of the drawing mechanism comes into contact with the punch block, making it impossible to draw on the upper side of the printing plate.

Therefore, in the past, it was not possible to drill the reference hole for the buttock side using the same drawing machine, and the reference hole for the buttock side was drilled separately using a separate device, which was time-consuming and required additional work. Problems arise such as the relative relationship between the reference hole and the reference line becomes inaccurate and the equipment investment becomes uneconomical.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

In other words, in the drawing machine with a punch described above, there is a base plate on which a printing plate is placed which has an extra length above the maximum size of the printing plate, and an exposure and plate cylinder mounting mouth arranged on the lower side of this base plate. A group of punch blocks for punching reference holes for the sides individually, a punch block for punching reference holes for the bottom side of the plate cylinder attached to the upper side of the base plate, and a punch block for punching the reference holes for the bottom side of the plate cylinder, which are arranged on the upper side of the base plate, and a punch block for moving the printing plate above the base plate. A jig plate equipped with a plurality of pins that are attached to the surface of the base plate when punching reference holes for the buttock side with a punch block and that are inserted into each of the reference holes for exposure or mouth side punched by the punch block group. It has been established that

[Effect]

Therefore, when the printing plate is placed below the base plate, the punch block on the upper side does not become an obstacle to drawing.
After drawing the reference lines and drilling the reference holes for exposure and the plate cylinder mounting mouth side, move the printing plate above the base plate, and attach the jig plate to the surface of the base plate. By fitting each reference hole of the printing plate with each pin of the jig plate, the position of the printing plate is regulated, and
A punch block provided on the upper side of the base plate allows a reference hole for the plate cylinder mounting bottom side to be punched.

〔Example〕

Hereinafter, details of the present invention will be explained with reference to figures showing embodiments.

FIG. 1 shows a plan view, in which X rails 2a and 2b are arranged on both sides of a base plate 1, and a Y rail 4 is stretched between heads 3a and 3b that slide together with the X rails 2a and 2b.
A ballpoint pen 6 is formed by a pen head 5 that slides together with this.
is supported, and the heads 3a and 3b move in the X direction and the pen head 5 moves in the Y direction by drive mechanisms for each of the X and Y directions (not shown in the figure), and
A ballpoint pen 6 is moved up and down by a vertical drive mechanism provided on the pen head 5, and a reference line is drawn on a printing plate 7 placed below the base plate 1.

Further, on the lower side 1a of the base plate 1, a punch block (hereinafter referred to as PUB) 8a for punching a reference hole for exposure,
8b, PUB9a, 9b, and 10a, 10b for drilling a reference hole for the plate cylinder mounting mouth side according to the dimensions of the printing plate 7 are arranged symmetrically as a pair, and the upper side of their base is This coincides with the lower side 1a, and this serves as a position adjustment stopper when the printing plate 7 is placed below the base plate 1.

Further, on the upper side 1a of the base plate 1, a PUB 11 for drilling a reference hole for the bottom side of the plate cylinder attachment is arranged in the center, and the vertical dimension of the base plate 1 is determined according to the size of the printing plate where the printing plate 7 is handled. When the maximum size is assumed, an extra length l is provided above this, and printing plate 7
The Y rail 4 and pen head 5 are in such a relationship that they do not come into contact with the PUB 11 even when drawing is performed toward the upper side of the pen.

The base plate 1 is provided with a plurality of vacuum suction holes (not shown in the figure), and the printing plate 7 is placed below the base plate 1, and its lower side is brought into contact with the base of the PUB group made up of PUBs 8a to 10b. After adjusting the position and starting the vacuum pump, the printing plate 7 is attracted by the vacuum suction hole and becomes fixed, so after drawing in this state, PUB8a, 8b, and PUB9a selected according to the dimensions of the printing plate 7,
By driving 9b or 10a, 10b, the reference holes for exposure and for the plate cylinder mounting mouth side are simultaneously bored.

Next, the vacuum pump is stopped, the printing plate 7 is moved above the base plate 1 as shown by the imaginary line, and the vacuum pump is started again to fix the printing plate by suction. A reference hole for the plate cylinder mounting bottom side is bored on the upper side of the plate 7.

However, in order to adjust the position of the printing plate 7 at this time, a part is spaced upward from the perforation part on the lower side of the base plate 1 by a moving distance L from below to the top.
Pin 1 whose center is aligned with PUB group 8a to 10b
A jig plate 14 on which pins 2a, 12b, 13a, and 13b are implanted can be installed in correspondence with the PUB groups 8a to 10b, and after this is installed, the pins 12a to 13b can be installed.
13b are inserted into the drilled reference holes of the printing plate 7, thereby regulating the position of the printing plate 7.

In addition, in consideration of handling small-sized printing plates, a jig plate 17 provided with similar pins 15a to 16b can be attached above the jig plate 14.

2A is a sectional view taken along the line XX in FIG. 1, and FIG. 2B is a similar sectional view taken along the line YY. Concave portions 21 and 22 of corresponding shapes are formed, and jig plates 14 and 17 are provided for direction adjustment during installation.
A pin 2 with an oval cross section that protrudes from the bottom surface of the
3a, 24a and circular cross-section pins 23b, 24
Pin holes 25a, 25b, 26a, 2 into which b fits
6b is drilled in each one, and the jig plates 14, 17
can be attached to and removed from each of the recesses 21 and 22 at will.

In addition, the pins 23a and 24 of the jig plates 14 and 17
a, and the pins 23b and 24b have the same shape, and the spacing between them is also the same, so that the jig plate 17 can be mounted in the recess 21 according to the dimensions of the printing plate 7.

FIG. 3 is a block diagram of the control circuit, which includes a control unit (hereinafter referred to as CNT) 31 which includes a processor such as a microprocessor and memory, etc., and a punch switch (hereinafter referred to as SPC) 32,
Switch for selecting and specifying PUB9a to 10b according to the dimensions of the printing plate 7 (hereinafter referred to as SSZ) 34, PUB11
As shown in Figure 1, the printing plate 7 is
is placed below the base plate 1 and the SPC 32 is operated. In response, the CNT 31 sends out a start signal PST, and a vacuum pump motor (hereinafter referred to as MV) 37 is activated via a driver (hereinafter referred to as DR) 36. In order to start up the printing plate 7, suction and fixation of the printing plate 7 is started, and at the same time, a timer (hereinafter referred to as TIM) 38 is started, and after a certain period of time required for the suction and fixation to be completed, a timer expires and a flip-flop circuit (hereinafter referred to as FFC) 39 is set. The output of this drives the PUBs 8a and 8b via the DRs 40 and 41, thereby drilling a reference hole for exposure.

In addition, depending on the settings of SSZ34 in advance,
The CNT 31 controls a selector (hereinafter referred to as SEL) 42 to select output A or B, and accordingly, the output of the FFC 39 is set to SEL 42 and
PUB9 via DR43,44 or 45,46
In order to drive a, 9b or 10a, 10b,
As a result, a reference hole for the mouth side corresponding to the dimensions of the printing plate 7 is bored.

Then, depending on the completion of drilling, PUB8a to 10
Since b is designed to send an end signal,
These are the end signals via AND gates 47 to 49.
The same signal is sent as PE ₁ , PE ₂ or PE ₃ .
PE ₁ directly to AND gate 50, same signal PE ₂ or
PE ₃ is SEL5 which is controlled at the same time as SEL42.
1 to the AND gate 50, where the AND gate 50 calculates the logical product of all drilling completion, and then it is applied to the CNT 31 via the OR gate 52 as the completion signal PUE of all drilling.

Therefore, the CNT 31 sends out a reset signal PUR in response to the completion signal PUE and resets the FFC 39, thereby causing the PUB 8a to
10b is restored.

Note that the CNT 31 sends out the control signal PC ₁ simultaneously with the activation signal PST in response to the operation of the SPC 32.
The AND gate 53 is turned on, and the output of the TIM 38 is given to the FFC 39 via this, but in this case, the control signal PC ₂ is not sent out and the AND gate 54 is turned off.
FFC55 does not respond and goes through DR56
PUB11 is not driven.

Furthermore, since the sending of the start signal PST is stopped at the same time as the reset signal PUR is sent, the MV 37 is stopped and the suction fixation of the printing plate 7 is released.

Next, the printing plate 7 is moved upward as shown by the imaginary line in FIG. 1, and in this case, the jig plate 14 is attached to the location shown in FIG. By fitting these, the positional adjustment of the printing plate 7 is completed.

In this state, when the SEP 35 is operated, the CNT 31 responds by sending out the activation signal PST again and also sends out the control signal PC ₂ , so that the printing plate 7 is suctioned and fixed by activation of the MV 37 as described above. , due to the time-up of TIM38, FFC55 is now passed through AND gate 54.
is set, and the output of this drives the PUB 11 via the DR 56, and a reference hole for the bottom side is bored on the upper side of the printing plate 7.

When drilling is completed, a completion signal is sent from PUB11.
Since PE ₄ is given as a completion signal PUE to CNT 31 via OR gate 52, sending of start signal PST is stopped and reset signal PUR is sent, and vacuum suction is canceled and PUB 11 is restored by resetting FFC 55. Then,
Return to initial state.

The reference line drawing on the printing plate 7 is performed by starting and stopping the MV 37 using a separate switch, and by driving the heads 3a, 3b, the pen head 5, and the ballpoint pen 6 based on command data from the host computer.

Therefore, the same drawing machine with a punch is used to punch all the necessary reference holes and draw the reference lines over almost the entire surface, which improves the accuracy of the relative relationship between the reference lines and each reference hole. Not only can labor be saved, but capital investment can be made more economical.

However, in Fig. 1, PUB groups 8a to 10
The number b may be determined according to the conditions of use, and the same applies to the number and arrangement of pins on the jig plates 14 and 17. In some cases, the jig plate 17 may be omitted, and The configurations shown in FIGS. 2 and 3 can be freely selected and can be modified in various ways.

[Effect of idea]

As is clear from the above explanation, according to the present invention, all the reference holes required in the printing plate can be punched using the same drawing machine with a punch, so the relative relationship between each reference hole and the reference line is accurate. At the same time, the economy in terms of equipment investment is improved, and great effects can be obtained in plate making of printing plates.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, and FIG. 1 is a plan view;
2 is a sectional view taken along line X-X and Y-Y in FIG. 1, and FIG. 3 is a block diagram of the control circuit. 1...Bedboard, 1c...Surface, 2a, 2b...X
Rail, 3a, 3b...head, 4...Y rail, 5...pen head, 6...ballpoint pen, 7...
...Printing plate, 8a-10b, 11...PUB (punch block), 12a-13b, 15a-16b...
Pin, 14, 17...Jig plate, 21, 22...Recess, l...Extra length.

Claims (1)

[Scope of utility model registration request] In a drawing machine with a punch that draws and exposes reference lines on the printing plate and punches reference holes for mounting the plate cylinder, the printing plate with an extra length above the largest size printing plate is placed. A base plate, a group of punch blocks arranged on the lower side of the base plate for individually punching reference holes for the exposure and plate cylinder mounting mouth side, and a group of punch blocks arranged on the upper side of the base plate for punching the reference holes for the exposure and plate cylinder mounting mouth sides, respectively. a punch block for punching a reference hole for the bottom side; 1. A drawing machine with a punch, characterized in that it is provided with a jig plate having a plurality of pins that are individually fitted into respective reference holes for exposure or mouth side drilled in groups.