JPS59104937A - Full-automatic reproduction printing press - Google Patents

Abstract

PURPOSE:To make it possible to feed base paper delivered from a roll to a reproduction apparatus or a printing apparatus without generating a twist or wrinkles, by arranging a base paper or copy feeding roller, a base paper cutter, a reproduction surface, a plate separation apparatus and a clamp apparatus on a straight line. CONSTITUTION:Base paper 9 wound in a roll form, rollers 10, 11 for sending the base paper 9 and a copy 22 to a plate sending apparatus 16, a base paper cutter 12, the reproduction surface of a reproduction apparatus 4, a plate separating apparatus 20 for separating the base paper 9 and the copy 22 and a base paper grasping clamp apparatus 17 provided to the screen of a printing cylinder 19 are successively arranged on a straight line and the plate sending apparatus 16 for sending the base paper 9 cut by the cutter 12 while grasping the start end thereof to a base paper clamp 17 is provided so as to be reciprocally moved between the cutter 12 and the clamp 17. By this mechanism, the base paper 9 cut by the cutter apparatus is lenearly transferred to the base paper clamp through the reproduction apparatus and the separation apparatus while grasping the start end thereof.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention is an all-white dynamic plate making system in which when a manuscript is inserted, plate making is immediately performed on the printing base paper, and the resulting plate is automatically mounted on a printing screen and printing begins. This relates to the transportation of printing base paper in a printing press.

Structure of the conventional example and its problems In the conventional all-white dynamic plate-making printing press, most of the transfer of the printing base paper to the plate-making device or the printing device was carried out by rollers or belts. If the printing base paper is a sheet-fed type, the above method is sufficient, but in a case where a long roll-shaped printing base paper is used to automatically supply the printing base paper, as in the all-white dynamic plate making printing machine of the present invention. In this case, it is not preferable to use rollers or bells as described above. That is, when a long length of printing base paper is transported by a roller or belt, it may not be sent straight due to the dimensional accuracy or installation accuracy of the roller or belt itself, but may be sent in a manner that makes a large turn from side to side. This sometimes causes kinks and wrinkles in the printing base paper, making plate making difficult.

OBJECTS OF THE INVENTION The present invention compensates for the above-mentioned drawbacks of the prior art, and aims to ensure that printing base paper is transferred to a plate-making device or a printing device without twisting or wrinkling.

Structure of the Invention The present invention comprises a base paper wound into a roll, a roller for transporting both the base paper and the manuscript to a plate feeding device, a base paper cutter device equipped with a cutter for cutting the base paper into a predetermined length, and a plate making device. A plate-making surface, a plate separation device that separates the base paper from the manuscript, and a clamp device that clamps the base paper provided on the screen of the printing cylinder are arranged in sequence in a nearly straight line, and the starting edge of the base paper cut by the base paper cutter is clamped. The plate feed device that transfers the paper to the base paper clamp is installed so that it moves back and forth in a straight line between the paper cutter and final paper clamp device.The paper that has been cut by the cutter device is held at its starting edge by the plate feed device. The paper is then linearly transferred to a base paper clamp via a plate-making device and a separation device. In other words, since the cut edges of the cut base paper are held and the rolled base paper is pulled out, there is no twisting or wrinkling of the base paper that occurs with conventional methods of transporting the base paper using rollers or belts. You can definitely pull it out.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.0 Fig. 1 is a schematic diagram of an all-white dynamic plate making printing machine, in which 1 indicates a printing cylinder;
A printing device having mechanisms necessary for printing such as a printing screen and a paper feeding device, 2 a paper feeding section for supplying printing paper to the printing mechanism section, 3 a paper discharge section for receiving printed printing paper, and 4 a printing base paper. A plate-making device that stacks manuscripts and creates a plate using a thermal plate-making method, 5
1 is a base paper cutter device that includes a roller that sends the starting edge of the printing base paper to the plate feeding device and also sends the original onto the printing base paper, and a cutter that cuts the printing base paper into a predetermined length; 6 is a document insertion section; 7 is a document ejection unit Part 8 is a plate discharge device that peels the printing base paper after printing from the printing screen and performs plate discharge processing, and 9 is a base paper roll formed by winding a heat-sensitive perforated printing base paper into a roll.

The above is the outline of the configuration, and next, the outline of the operation will be explained.

When the original is inserted into the original insertion section 6, the switch is turned on, and the plate feeding device (described later), which grips the starting edge of the original paper 9 on the side of the original paper cutter device 5, grips the original paper and displays it on the printing screen of the printing device. The base paper is transferred to a provided base paper clamp device (described later), and the base paper clamp device clamps the starting end of the base paper.

At this time, the rollers of the base paper cutter device 5 rotate idly to draw out the base paper, and the original is sent to the plate-making device 4 together with the base paper, where plate-making is performed. When plate making is performed, the printing screen rotates and the base paper is attached to the printing screen.

In this process, when the base paper reaches a predetermined length, the cutter of the base paper cutter device 6 is activated to cut the base paper. Printing is started when the stencil-made base paper is mounted on the printing screen IJ-n.

Although the outline of the operation has been explained above, the plate transport mechanism and the operation thereof, which are the main focus of the present invention, will be described in detail below.

2 to 4, 6 is a document insertion section, 7 is a document discharge section, 9 is a base paper roll, 1o is a pair of base paper rollers A,
Reference numeral 11 denotes a pair of base paper rollers B that are interlocked with this base paper roll ram. The base paper rollers A, B10, and 11 are pivotally supported by a one-way clutch to feed the base paper. 1
2 is a cutter that cuts the base paper into a predetermined length; 13 is a flash bulb such as a xenon bulb provided in the plate-making device 4; 14 is an elevating device for the flash mechanism including the flash bulb 13; 21 is a suppression glass; Glass with low optical loss, such as glass, is used. 15 is a suppression receiving material (made of a plate-making solid piece elastic body) 16 is a plate feeding device, a base paper cutter device 5 - a printing device 1
It is slidably mounted on a longitudinal sliding shaft 16a provided therebetween.

Reference numeral 17 denotes a base paper clamp, which is attached to the two printing cylinders 19 of the printing device 1.
It is attached to a printing screen that is wrapped around the screen. 1
8 is a base paper clamp opening/closing device having a cam that opens and closes the base paper clamp 17, and 2o is a plate separation plate, the tip of which comes into contact with the plate separation roller 20a during plate separation, separating the base paper and the original, and separating the original from the original. It functions to discharge to the discharge section 7. 2
2 is the manuscript. In addition, in FIG. 4, the plate feeding device 16 is connected to the sliding shaft 1.
This figure shows a state in which the roller 6a has been slid and moved toward the base paper roller B, and the other parts are the same as in FIG. 1.

In the above configuration, the pair of base paper rollers A10, the cutter 12, the pair of base paper rollers B11, the suppression receiving material (plate making surface) 16, the plate separation roller 20a, and the base paper clamp 17 are arranged in sequence on a substantially straight line.

Next, the plate feeding device 4 will be explained with reference to FIGS. 5 and 6. Reference numeral 26 denotes a main frame, which has guide portions 30 having built-in slide bearings and the like at both ends thereof, and the guide portions 30 are slidably mounted on the sliding shaft 16a. 2
Reference numeral 5 denotes a base paper clamping plate, which is rotatably supported by a shaft 32 on the main frame 26, and a base paper clamping piece 27 made of an elastic material with a large frictional force is fixed to the base paper clamping portion. Note that the base paper clamping piece 27 is also provided at the clamping portion of the main frame 26 on the opposite side. Reference numeral 24 is a llenoid which acts to open the base paper clamping portion of the base paper clamping plate O. Reference numeral 028 is a spring that applies the clamping force of the base paper clamping portion to the base paper. 29 is the base paper sandwiching rebellion 26
It is a connecting plate that connects the Reference numeral 31 denotes a drive wire attachment part, in which a drive force transmission member (not shown) such as a wire is attached to this part in order to slide the plate feeding device 16 on the sliding shaft 16a.
Strange (attached 0) Next, I will explain its function.

The state of the fully automatic plate making and printing machine before starting is shown in Figure 4. That is, the paper feeding device 16 is a base paper feeding roller B11.
The base paper clamping plate 25 is located close to the base paper nipping plate 25 and clamps both ends of the base paper 90 fed out by the base paper roller A10 and the base paper roller B11. When the original 22 is inserted from the original insertion section 6, the end of the original comes into contact with the original paper roller A10 and becomes the top position of the original. When the switch is operated in this state to start operation, the plate feeding device 16 moves toward the printing device 1 on the sliding shaft 16a while holding the base paper, and the base paper clamp 17 opens the edge of the base paper. (Fig. 2), and then the paper clamp opening/closing device 1
8 operates to close the base paper clamp 17, and the end of the base paper 90 is clamped by the base paper clamp 17. When this base paper 9 is sent from the base paper roller B11 section to the base paper clamp 17 section, the base paper roller A10 and the base paper roller B11 rotate following the feeding of the base paper 9, and send the aforementioned original 22 together with the base paper 9 to the plate-making device 4. (Figure 2). As described above, when the base paper 9 is clamped by the base paper clamps 17, the plate separation plate 20 moves to a position where it comes into contact with the plate separation roller 20a as shown by the dotted line in FIG. Prepare to separate the base paper 9 and original document 22 by lifting it into a △-shaped chevron shape. Next, the elevating device 14 of the flash mechanism section is activated to raise the flash mechanism section, and the pressing glass 21 and the pressing receiving material 15 lift the base paper 9 and the original document 22.
Press. When a sufficient pressing force is reached, the flash bulb 13 flashes and irradiates the document 22 with strong light through the base paper 9.

The characters or images on the original document 22 that receive the light absorb the light,
Heat is generated and characters or images are perforated on the base paper 9 to produce a printing plate. When the flash ends, the elevating device 14 is activated, the flash mechanism is lowered, and the printing cylinder 19 begins to rotate slowly.

The base paper clamp 17 that clamps the base paper 9 is attached to the screen 23 that is wound around the printing cylinder 19 as described above, so that the base paper 9 is automatically wound around the screen 23 and attached as the printing cylinder 19 rotates. Here, the length required for printing on the base paper 9 may be slightly shorter than the total circumference length of the screen 23, so the length required for printing on the base paper 9 is The length of the base paper 9 is detected and the base paper cutter 12 cuts the base paper 9.

As described above, the original paper 9 is perforated with the characters and images of the original to create a printing plate, which is then cut to the length required for printing.
The base paper 9 is automatically attached to the screen 23 and printing is started.

When the above-described cutting of the base paper 9 is completed, the plate feeding device 16 slides in the direction of the base paper feed roller 11, opens the base paper holding plate 26, and waits for the insertion of the paper edge of the base paper 90.Next, the base paper low seam 1
0. The base paper roller B11 rotates and inserts the end of the base paper 90 into the opening of the base paper holding plate 26. When this insertion is completed, the base paper holding plate 26 closes and pinches both ends of the base paper 90 and transfers the next document. Wait for insertion and operation.

Effects of the Invention The plate-making base paper used in the plate-making printing machine of the present invention, which produces printing plates by thermal plate-making, is extremely thin due to its nature. , 3 μm thick polyester film, and 20~
It is made by pasting together sheets of paper with a thickness of 30 μm, and the total thickness is about 36 μm. When such extremely thin base paper is sent to the plate-making department or printing screen by rotating rollers, problems may occur in the way the rollers get caught in the base paper, or the rollers may apply pressure or feed unevenly to the width of the base paper. As a result, kinks and wrinkles occur in the base paper, resulting in frequent defects in which plate making and the base paper device to the screen cannot be carried out properly.

However, in the present invention, as described above, the base paper cutter device, the plate-making surface of the plate-making device, the plate separation device, and the base paper clamp device are sequentially arranged on a nearly straight line, and the base paper is connected between the cutter device and the clamp device. The structure is equipped with a slope device that moves linearly by holding the edge of the paper, and the paper is fed from a roll by pulling the edge of the paper, so the above-mentioned kinks and wrinkles do not occur. This allows for stable plate making and loading of base paper onto the screen. Furthermore, in the present invention, since the slope device clamps and pulls both ends of the base paper, it is possible to eliminate the difficulty of designing and manufacturing to avoid pinching of irregular parts that is likely to occur when the entire surface is clamped.

In the above embodiment, clipping parts for the base paper were provided at both ends of the main frame to clamp both sides of the paper edge of the base paper. It goes without saying that the same effect can be obtained by clamping at three places, at both ends and the center, and the same effect can also be obtained by clamping at the center or at the wide part.

[Brief explanation of the drawing]

FIG. 1 is a schematic side sectional view of the all-white dynamic plate making and printing apparatus of the present invention, and FIG. 2 is a side sectional view of the main part of FIG. 1, showing a state in which the slope device has moved toward the paper clamp device. Fig. 3 is a sectional view of the mu person in Fig. 2, Fig. 4 is a side sectional view when the slope device moves toward the base paper cutter device, Fig. 5 is a side view of the base paper clamping part of the slope device, and Fig. 6 The figure is a plan view of the slope device. 4... Plate making device, 6... Base paper cutter device, 9... Base paper roll, 10.11...
... Row, y-112 ... Base paper cutter, 16.
... Pressure receiving material (plate making surface), 16 ... Slope device, 17 ... Paper clamp device, 23 ...
...Print screen. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 6
Figure 5 Figure 4

Claims (1)

[Claims] (1) A roller that transports the rolled base paper along with the manuscript to the plate feeding device, a base paper cutter device equipped with a cutter that cuts the base paper into a predetermined length, a plate-making surface of the plate-making device, the base paper and the manuscript A plate separating device for separating the base paper and a base paper clamping device for clamping the separated base paper provided on the screen of the printing cylinder are arranged almost in a straight line, and further clamp the starting end of the base paper cut by the base paper cutter device. The plate feeding device, which is transferred to the paper clamping device by the plate feeding device, is reciprocated in a straight line between the paper cutter device and the paper clamping device. All-white dynamic plate making printing according to claim 1, in which the binding portions are located at both ends of the base paper or at several locations that do not cover the entire width of the base paper.