JPS6250142A - Apparatus for controlling cylinder insert of double-side printing press - Google Patents

Abstract

PURPOSE:To miniaturize the titled apparatus as a whole, by fixing a cylinder insert cam to one end of a first rubber cylinder rotating at a constant position, providing both first and second plate cylinders and a second rubber cylinder in a swingable manner by said cam and connecting the latches holding the eccentric shaft of the second rubber cylinder and both first and second plate cylinders in a cooperative state. CONSTITUTION:When a printing press is started, a first rubber cylinder 2 rotates at a constant position while, by a cylinder insert cam 10, a first plate cylinder 4 and a second rubber cylinder 5 eccentrically rotate with respect to the first rubber cylinder 2 in a contacting/ separating state and a second plate cylinder 8 is eccentrically rotated with respect to the second rubber cylinder 5 in the same state. When paper is fed, a solenoid 29 is turned ON and, when the projection 23 is brought to the state illustrated, an eccentric shaft 7 is revolved and the second rubber cylinder 5 is inserted in the first rubber cylinder 2. At this time, an arm 36 is revolved to a direction (b) and the first plate cylinder 4 is brought to a cylinder insert state with respect to the first rubber cylinder 2 and a second plate cylinder 8 is brought to the same state with respect to the second rubber cylinder 5 and printing is applied to both surfaces of paper by both first and second rubber cylinders 2, 5. That is, cylinder insert control can be performed by one cylinder insert cam 10 and one solenoid 29.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention provides a first blanket cylinder for front side printing, a first plate cylinder, a second blanket cylinder that also serves as an impression cylinder for back side printing, and a second blanket cylinder for printing on the back side. The present invention relates to a cylinder loading control device for an offset double-sided printing press consisting of a cylinder.

[Conventional technology]

The above printing machine has two printing machines that also have a blanket cylinder, a plate cylinder, and an impression cylinder.
Compared to a system in which the cylinders are installed side by side, not only can the number of turns be reduced, but other mechanisms can also be simplified, making the overall structure simpler and more compact. Conventional printing machines have the problem of complicating the structure and making it difficult to load each cylinder in accordance with the paper feeding timing, since both sides are printed at the same time.

[Problem that the invention seeks to solve]

Since the opening of the trunk is fixed to one end of the rubber cylinder, which rotates in a fixed position without eccentricity, the cam is used to rotate the cylinder. The second double plate cylinder and the second blanket cylinder are swingably provided, and the second
The eccentric shaft of the second blanket cylinder and the first cylinder are connected to each other so that the first and second cylinders can be held in the loaded state in conjunction with the insertion of the blanket cylinder.
By interlocking and connecting the latches that hold the two cylinders, it is possible to control the insertion of the first cylinder, the second cylinder, and the second rubber cylinder using the two cylinder insertion cams. The purpose of this is to centralize all the mechanisms on either the operating side or the non-operating side of the printing press, making it easy to adjust the timing, and making the entire device smaller. It is.

[Means for solving problems]

That is, the present invention provides a first blanket cylinder, a first printing cylinder and a second blanket cylinder that are supported by an eccentric shaft so as to be detachably attached to the first blanket cylinder, and a first blanket cylinder that is detachably attachable to the second blanket cylinder. In a double-sided printing machine, a double-sided printing machine is equipped with a second blanket cylinder supported by an eccentric shaft, and a blanket inserting cam is fixed to one end of the first blanket cylinder, and the first and second blanket cylinders are connected by the blanket inserting cam. Three swing arms are pivotally connected to the frame with one end in contact with the barrel insertion cam so that the plate cylinder, bottle, and two rubber cylinders can each swing, and each eccentric shaft of both the first and second plate cylinders is connected. On the other hand, the eccentric shaft of the second rubber cylinder is connected with a tip, link, etc., and the arms fixed to the eccentric shafts of the cylinders 1 and 2 are engaged. Each lunch, which is removably pivoted to the frame, is fed with paper.
It is linked with the eccentric shaft of the first and second rubber cylinders so that both the first and second cylinders can be held in the state of being inserted in conjunction with the case of the second rubber cylinder, which is inserted into the cylinder by the Nlenoid provided so that it can move. The above-mentioned intervening vertices were solved.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.As shown in FIGS. 1 and 2, a frame 1 of a printing press.
1, a rubber cylinder 2 is rotatably supported at a fixed position without eccentricity by a rubber cylinder shaft 3, and is rotationally driven by a motor (not shown).

A first printing cylinder 4 and a second printing cylinder 5, which also serves as an impression cylinder, are installed at approximately symmetrical positions to the rubber cylinder 2, and are attached to the frame 1 by eccentric shafts 6.7, respectively, so that they can be freely attached to and detached from the rubber cylinder 2. ．． 1, and a second plate cylinder 8 is supported by an eccentric shaft 9 on the frame 1.1 so as to be detachable from the blanket cylinder 5.

Located at one end of the above 5A-1 rubber cylinder 2, spear 1 rubber cylinder shaft 3
A body insertion cam 10 is fixed to the body insertion cam 1.
On the cam surface of 0, each stud shaft 11 is attached to the frame l.
．． 12.13 Pivotally connected three-tube swinging arm 14.1
5. o-5-14a provided at one end of 16, 15
a and 16 a are in contact with each other, and each swing arm 14 to 16 is provided to swing when the body insertion cam 10 rotates.

Further, arms 17, 18, 19 are provided at one end of each eccentric shaft 6.7.9 of the first cylinder 4, the second rubber cylinder 5, and the second cylinder 8.
is fixed.

The other end of the swing arm 14 and the swing arm 1
7 is connected by a linkage, an arm 21, and an adjustment rod 22, and the other end of the swing arm 15 and the arm 18
are connected by the missing 23, 17 link 24, and the swinging arm 16 and the arm 19 are connected by the link part, the arm 26, the link 27, and the adjusting sweat plate. As the blanket inserting cam 10 rotates integrally with the first blanket cylinder 2 in the direction of the arrow a in FIG. 6
．． 9 is eccentrically rotated, and the first plate cylinder 4 is rotated with respect to the first blanket cylinder 2.
Also, the second plate cylinders 8 are provided so as to be able to come into contact with the second blanket cylinder 5, respectively.

Further, the prong 23 is connected to the solenoid 4 by a link 30, and the solenoid 29 is turned ON when paper is fed and a phototube or the like (not shown) detects the paper, and the solenoid 29 is turned on and moved up and down by the body insertion cam 10. The above-mentioned tip field, which is being reciprocated in the direction, is operated to the state shown in Fig. 1, thereby link 2
4, the arm I8 is rotated, and the 'p2 blanket cylinder 5 is placed in (contact with) the 3.1 blanket cylinder 2.

Further, the frame 1 has latches 31 and 32 rotatable by stud shafts 33 and 34, and the arm 17.
．． 19 is pivotally connected to the respective launches 31.3 in a detachable manner.
2 and each end of an arm 36 rotatably attached to the frame 1 by a stud shaft 35 or the like are connected by a link 37 and a sill.

Further, the link 211 connecting the deletion n and the arm 18 and the arm 36 are connected by a link 39, so that the rubber cylinder 5 is connected to the solenoid 29 as described above.
When the rubber cylinder 5 is inserted, the latches 31 and 32 are rotated in the direction of locking the arms 17 and 19, thereby locking the arms 17 and 19 and interlocking with the insertion of the rubber cylinder 5. The first plate cylinder 4 and the second plate cylinder 8 are held in the retracted state shown in FIG. 1.

Also, when paper feeding stops, the solenoid 29 is turned off.
When the solenoid 29 is turned OFF, the second blanket cylinder 5 is released from its insertion, and at the same time, the arm 17.19 is locked by the latch 31.32 in conjunction with the release of the cylinder insertion. The structure is such that the first plate cylinder 4 and the second plate cylinder 8 are released from the cylinders when they are untied.

Here, the first plate cylinder 4 and the second plate cylinder 8 are connected to each arm 17.
．． 19 and a spring 40 whose end is hooked to the frame 1 and stretched.
, 41 in the direction of releasing the body insertion, and on the other hand, each of the latches 31, 32 is biased by a spring 42, 43 which is tensioned by hooking its end to each latch 31, 32 and the frame l. The arms 17 and 19 are biased in the direction of releasing the lock.

FIG. 2 is a schematic diagram of a printing press, in which 55 is a paper feeding device, 56 is a paper ejecting device, 44 is a paper ejecting table, 45 is an on-inking device, 46 is a humidifying device, and 47 is a paper discharging device. 48 is Onipran cleaning device, 49 is Sail plate discharging device,
Gloss is the second inking device, 51 is )・2 humidifying device, 52
53 indicates a second plan cleaning device, and 54 indicates a second plate discharging device.

In the above configuration, when the printing press is started, the ony rubber cylinder 2 rotates at a fixed position, while the cylinder insertion cam 1 (H
As a result, the first plate cylinder 4 and the second blanket cylinder 5 rotate eccentrically with respect to the above-mentioned ony rubber cylinder 2 in a state of contact and separation, while the second plate cylinder 8 also
It rotates eccentrically in a state of contact with and separation from the rubber cylinder 5.

When paper is fed and a phototube or the like (not shown) detects the paper, the solenoid 29 is turned on by the detection signal and the solenoid 29 which is moving up and down is operated to the state shown in the figure.
4. The eccentric shaft 7 is rotated via the arm 18, and the rubber cylinder 5 is inserted into the onion rubber cylinder 21ζ and held in the inserted state.

At this time, the arm 36 connected by the links 24 and 39 is rotated in the direction of the arrow in Figure 1, so the latches 31 and 32 are rotated via the links 37 and 38, and each arm 17 and 19 As a result, the first plate cylinder 4 and the second plate cylinder 8 are held in a locked state with respect to the 1/1 blanket cylinder 2 and the second blanket cylinder 5, respectively, and the 'A' PIX 2nd Both rubber cylinders 2
．． 5, it is printed on both sides of the paper.

Also, when paper feeding stops, the above solenoid 29
Because of this, the eccentric shaft 7 is reversed via the link arm 18, and the second blanket cylinder 5 is released from its position, and at the same time, both the first and second printing cylinders 4.8 are The armor will be removed.

〔Effect of the invention〕

As explained above, since the body loading control device of the double-sided printing press according to the present invention is configured, the body loading control device of the present invention is composed of 10 body loading cams fixed to the blanket cylinder 2 and 29 solenoids. In addition to being able to control the insertion of the two blanket cylinders 5 and the two plate cylinders 4 and 8, the device can be centrally placed on either the operation side or the non-operation side of the printing press. It is easy to match the timing of inserting each body, and since the structure is extremely simple, it can be made lightweight and compact, and it can be manufactured at low cost.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a duplex printing press body loading control device according to the present invention, and FIG. 2 is a schematic diagram of the duplex printing press. ■...Frame 2...Onigober cylinder 4...1st edition cylinder
5...1/2 rubber cylinder. 8...Second plate cylinder 6.7.9...Eccentric shaft 10...Body insertion cam 14.15.16...Swinging arm 23...Protrusion
Yata, 24.27 Link 21.26...Arm 4...Solenoid 31.32...Latch 31.3
2...Latch

Claims (1)

[Claims] A first blanket cylinder 2, a first plate cylinder 4 supported by eccentric shafts 6 and 7 in a detachable manner with respect to the first blanket cylinder, and a second blanket cylinder 5.
and a second plate cylinder 8 supported by an eccentric shaft 9 in a detachable manner relative to the second blanket cylinder. three swinging parts that are fixed and pivoted to the frame 1 with one end in contact with the body insertion cam so that the first and second plate cylinders and the second blanket cylinder can each swing by the body insertion cam; Arms 14, 15
, 16, and each eccentric shaft of both the first and second plate cylinders is linked to a link 20,
27..., arms 21, 26..., etc., while the eccentric shaft of the second blanket cylinder is connected by a dart 23, a link 24, etc., respectively, and is fixed to each eccentric shaft of the first and second plate cylinders. each latch 31, each arm of which is pivotally connected to the frame so as to be freely engageable and detachable;
The eccentric shaft of the second blanket cylinder is connected to the second rubber which is inserted into the cylinder by a solenoid 29, which is provided so that the solenoid 32 can be turned ON when paper is fed, so that both the first and second plate cylinders can be held in the cylinder-inserted state. A body loading control device for a double-sided printing press, characterized in that it is linked with.