JPH0415487Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a swing gripper device for a printing press.

(Prior Art) To explain a conventional offset sheet-fed printing machine with reference to FIG. 4, 01 is a paper feed section, and printing paper 06 is taken out one by one from the top of a pile 05 in the paper feed section 01. , is placed on the endless tape 97, is fed, and comes into contact with a front abutment claw 09 provided at the end of the front abutment plate 08 of the register section, and then stops. The front end of the printing paper 06 is attached to the swing gripper device 01.
0, pulled out, passed to the first intermediate cylinder 011 of the first color printing unit section, and then the first intermediate cylinder 011 of the first color printing unit section.
The first color is printed after passing between the impression cylinder 012 and the blanket cylinder 013 of the color printing unit, then passed to the first intermediate cylinder 011 of the first color printing unit, and then transferred to the impression cylinder 011 of the second color printing unit. Trunk 015 and rubber cylinder 01
6, the second color printing is performed, and then the paper is sent to the paper discharge section 04 and discharged.

Figures 5 and 6 show the swing gripper device 01.
0 behavior was shown. The same swing gripper device 01
0 comes into contact with the front pawl 09, grabs the printing paper 06 stopped at a fixed position, moves toward the first intermediate cylinder while speeding up to the circumferential speed of the first intermediate cylinder 011, and picks up the printing paper 06. It has a function of passing it to the first intermediate cylinder 011. That is, the printing paper 06 is picked up by the swing gripper device 010 and the end thereof is grabbed. Further, when the end of the printing paper 06 is grabbed by the swing gripper 010, the front pawl 09 retreats to the left on the rotation trajectory 09a. Next, the swing gripper device 010 grips the edge of the printing paper 06
rotates on the rotation locus 010a from the position shown in Fig. 6 to the position shown in Fig. 5 (front pawl position A in Figs. 5 and 6→
The end of the printing paper 06 is transferred to the gripping claw 011a of the first intermediate cylinder 011 (rotated to the transfer position B), and then the swing gripper device 010 returns to the position shown in FIG. (Rotate from transfer position B to front claw position A in Figure 6) and grab the next printing paper 06. In this way, the swing gripper 010 prints on the printing paper 06
Front stopper claw position A where the front stopper claw comes into contact with front stopper claw 09 and stops
and a transfer position B, where the end of the printing paper 06 is transferred to the gripping claw 011a of the first intermediate cylinder 011, along a rotation locus 010a.

Further, in FIG. 5, 018 is the swing gripper shaft, 019 is the swing gripper arm fixed to the swing gripper shaft 018, and 0
17b is a swing claw seat fixed to the swing gripper arm 019, 020 is a swing claw shaft attached to the swing gripper arm 019, 021 is a claw turner fitted into the swing claw shaft 020, 022
is the pawl shaft tightening flange provided on the same pawl turner 021,
023 is a tightening bolt for tightening the pawl shaft tightening flange 022 to fix the pawl driver 021 to the swing pawl shaft 020, and 024 is the swing pawl shaft 0.
Claw support attached to be able to swing (open/close) on 20, 0
17b is the swing claw, 026 is the same swing claw 01
7b is fixed to the above-mentioned claw support 024, and 025 is the swing claw tightening bolt 02.
6 and the swing claw 017b, the swing gripper 010 grips the end of the printing paper 06 in the first
When passing it to the biting claw 011a of the intermediate body 011 and returning to the original front claw position A, the swing claw roller 025
rolls while supporting a portion corresponding to the bottom side back surface of the printing paper 06 on the first intermediate cylinder 011 side, and the bottom side of the printing paper 06 hits the swing gripper 010 and a protrusion, for example, the swing claw tightening bolt 026. This is to prevent contact and damage.

(Problems to be solved by the invention) In the swing gripper device of the printing press shown in FIGS. 5 and 6, the swing claw roller 025 at the transfer position B
from the tangent line extending from the outer diameter circle of the first intermediate cylinder 011
The part protruding to the side, that is, the pawl shaft tightening flange 02
There are tightening bolts 023 that tighten and fix the corners of 2 and the flange 022. Contact the back side and damage this part. The thicker the printing paper 06, the larger the scratches that occur at this time.

(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and fixes the pawl turner to the swing pawl shaft by tightening the pawl shaft tightening flange of the pawl turner with a tightening bolt. In a swing gripper device for a printing press, in which a pawl support is swingably mounted on the swing pawl shaft, and a swing pawl and a swing pawl roller are attached to the pawl support, the pawl shaft tightening flange of the pawl turner and This swing gripper device for a printing press is characterized in that a paper receiving roller that contacts the printed paper of the mating cylinder is attached to the claw supporting portion between the swinging claw roller, and its purpose is to tighten the claw shaft. An object of the present invention is to provide an improved swing gripper device for a printing press capable of preventing damage to printing paper caused by the angle of a flange and the contact of a tightening bolt for tightening and fixing the flange with the printing paper on the mating cylinder side.

(Function) As described above, the swing gripper device of the printing press of the present invention has a paper receiving roller that comes into contact with the printing paper of the mating cylinder in the claw support portion between the claw shaft tightening flange of the claw driver and the swinging claw roller. When the swing gripper device passes the end of the printing paper to the gripping claws on the mating cylinder and returns to the original front claw position, the paper receiving roller corresponds to the back side of the printing paper on the mating cylinder side. Since it rolls while supporting the parts, it prevents damage to the printing paper caused by the corners of the nail shaft tightening flange and the tightening bolts that tighten and fix the flange coming into contact with the printing paper on the mating cylinder side. Ru.

(Embodiment) Next, the swing gripper device for a printing press of the present invention will be explained using an embodiment shown in FIGS. The fixed swing gripper arm, 17b is a swing claw seat fixed to the swing gripper arm 19, 20 is a swing claw shaft attached to the swing gripper arm 19, and 21 is inserted into the swing claw shaft 20. 22 is a pawl shaft tightening flange provided on the pawl driver 21; 23 is a tightening bolt for tightening the pawl shaft tightening flange 22 and fixing the pawl driver 21 to the swing pawl shaft 20; , 24 is the swing claw shaft 20
Claw support attached to the top for swinging (opening/closing), 17b
2 is a swing claw; 26 is a swing claw tightening bolt for fixing the swing claw 17b to the claw support 24;
5 is a swing claw roller attached to the claw support 24 portion between the swing claw tightening bolt 26 and the swing claw 17b; 32 is a bracket fixed to the claw support 24 by the swing claw tightening bolt 26; 30; is the paper receiving roller that is the most distinctive feature of this invention.
The paper receiving roller 30 connects to the bracket 3 via the shaft 31.
2, and is located between the pawl shaft tightening flange 22 of the pawl driver 21 and the swing pawl roller 25.

Next, the operation of the swing gripper device of the printing press shown in FIGS. 1, 2, and 3 will be explained in detail. The swing gripper device 10 grips the printing paper at the front pawl position shown in FIG. 2, swings in the direction of the first intermediate cylinder 11, and hands it to the gripping pawl of the first intermediate cylinder 11 at the transfer position shown in FIG. , and then returns to the front claw position shown in FIG.
At this time, the printing paper on the first intermediate cylinder 11 side is
The printing paper is fed in the rotational direction of the first intermediate cylinder 11 at the circumferential speed of the intermediate cylinder 11, whereas the swing gripper device 10 swings at a swingback speed in the opposite direction to the traveling direction of the printing paper. , that is, the first
Since the printing paper on the intermediate cylinder 11 side and the swing gripper device 10 are moving relative to each other at the sum of their speeds, when the protrusion of the swing gripper device 10 comes into contact with the printing paper on the first intermediate cylinder 11 side, the same printing Although the paper is damaged, there is a paper receiving roller 30 between the pawl shaft tightening flange 22 of the pawl driver 21 and the swing pawl roller 25, and when returning to the previous pawl position, the swing pawl roller 25 and the paper receiving roller 30 is the first intermediate cylinder 1
The corners of the pawl shaft tightening flange 22 and the tightening bolt 23 roll while contacting the printing paper on the first side, and the straight line 10 connects the transfer position B and the outer circumferential surface of the paper receiving roller 30.
b, and the tightening bolt 26 moves outside the straight line 10c connecting the outer peripheral surface of the paper receiving roller 30 and the outer peripheral surface of the swing claw roller 25.
The printing paper on the first intermediate cylinder 11 side is not damaged. In addition, if the corners of the pawl shaft tightening flange 22 and the tightening bolt 23 are chamfered and finished smoothly, the bolt head is chromed, and the paper receiving roller 30 is made of a soft material, damage to the printing paper can be prevented. It is even more effective.

(Effects of the invention) As described above, the swing gripper device of the printing press of the present invention has a paper receiving roller that contacts the printed paper of the mating cylinder in the claw supporting portion between the claw shaft tightening flange of the claw driver and the swinging claw roller. is installed, and when the swing gripper device passes the end of the printing paper to the gripping claws on the mating barrel and returns to the original front claw position, the paper receiving roller touches the back side of the printing paper on the mating barrel side. Since it rolls while supporting the corresponding part, it prevents damage to the printing paper caused by the corners of the nail shaft tightening flange or the tightening bolts that tighten and fix the flange coming into contact with the printing paper on the mating cylinder side. It has a preventive effect.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the state of an embodiment of the swing gripper device for a printing press according to the present invention when the transfer position is moved, FIG. 2 is a side view showing the state when the front gripper position is moving, and FIG. Its plan view, Fig. 4 is a side view showing the entire printing press, Fig. 5 is a side view showing the state of the conventional swing gripper device when the transfer position is moved, and Fig. 6 is the state when the front claw position is moved. FIG. 11... Opponent body, 17a... Swing claw, 20
...Swing pawl shaft, 21...Paw wheel, 22...
Claw shaft tightening flange, 23... Tightening bolt, 24...
...Claw support, 25...Swing claw roller, 30...Paper receiving roller.

Claims (1)

[Scope of utility model registration request] Tighten the pawl shaft tightening flange of the pawl driver with a tightening bolt to fix the pawl driver to the swing pawl shaft, attach the pawl support swingably on the swing pawl shaft, and swing to the pawl support. In a swing gripper device of a printing press that is equipped with a claw and a swinging claw roller, a paper receiving roller that contacts the printing paper of a mating cylinder is provided at a claw support portion between the claw shaft tightening flange of the claw driver and the swinging claw roller. A swing gripper device for a printing press, characterized in that it is equipped with a swing gripper device.