JPH04120034U - Plate cylinder stopper - Google Patents

Abstract

(57) [Summary] [Purpose] To regulate the rotation of the plate cylinder when the plate cylinder unit is removed from the printing machine body. [Structure] A fixed locking rod 8 is fixed to a support plate 7, and a slide locking rod 9 is attached so as to be slidable and fixed at any position. [Effect] By engaging the fixed locking rod 8 and the slide locking rod 9 in the meshing portion of the gears 6a and 6b that transmit driving force to the plate cylinder 2 of the plate cylinder unit A, the plate cylinder is rendered unrotatable. do. Thereby, the printing plate 1 can be attached to the plate cylinder unit A that has been removed from the main body of the printing machine.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a plate cylinder stopper for regulating the rotation of each cylinder of a plate cylinder unit. For more details, see how to install the printing plate with the plate cylinder unit removed from the printing machine body. This invention relates to a plate cylinder stopper to enable printing.

0002

[Conventional technology]

In order to attach the printing plate to the plate cylinder in a printing machine, the printing plate 1 is attached as shown in Fig. 5. Insert the tab 1a formed at one end into the slit 2a of the plate cylinder 2 and insert the printing plate around the plate cylinder. Wrap 1. Then, insert the bottom 1b of this printing plate 1 through the slit 2a. At the same time, insert it into the reel 3 inside the plate cylinder 2, and rotate this reel 3 in the direction of the arrow to tighten it. By fitting, the printing plate 1 is brought into close contact with the circumferential surface of the plate cylinder 2.

0003

[Problem that the idea aims to solve]

Today's offset printing machines have a plate cylinder 2, a blanket cylinder 4, and an impression cylinder as shown in Figure 6. The cylinder 5 is configured to be removable from the main body of the printing machine as a plate cylinder unit A. However, when the plate cylinder unit A is removed from the machine body, the plate cylinder 2 rotates. Become a state of freedom. In this state, as mentioned above, when tightening reel 3 with a wrench, etc. In addition, since the plate cylinder 2 rotates, the reel 3 cannot be tightened.

0004 For this reason, in the past, the plate cylinder unit A was built into the main body of the printing machine, and the plate cylinder gear 6a and plate cylinder unit A were assembled into the main body of the printing machine. The lancet cylinder gear 6b and the impression cylinder gear 6c mesh with the gear train of the machine body, and the plate cylinder 2 rotates. I had no choice but to attach the printing plate 1 after making sure that it did not rotate. For this reason, printing There were problems such as it took a long time to set up.

[0005] This invention is intended to solve the above-mentioned conventional problems, and its purpose is to By regulating the rotation of the plate cylinder when the unit is removed from the printing machine body, Another object of the present invention is to provide a plate cylinder stopper for attaching a printing plate.

[0006]

[Means to solve the problem]

A typical means according to the present invention for solving the above problems includes a plate cylinder and an impression cylinder. A plate cylinder stopper that regulates the rotation of the plate cylinder unit, and is attached to the rotation shaft of each cylinder. A fixing member and a sliding member to hold down the engaged part of the gear that has been engaged. is attached to a support member, and the slide member is slidable with respect to the support member. It is characterized by being attached so that it can be tightened and fixed.

[0007]

[Effect]

In the above means, when the plate cylinder unit is removed from the machine body, the gear is When the fixing member and sliding member are pressed and fixed against the meshing part, the rotation of the plate cylinder is regulated. be done. Therefore, the printing plate must be installed with the plate cylinder unit removed from the machine body. Injury is possible.

[0008]

【Example】

Next, an embodiment of the plate cylinder stopper according to the present invention to which the above-mentioned means is applied will be described. Figure 1 is a perspective view of the plate cylinder stopper B, and Figure 2 is an exploded view of the plate cylinder stopper B. It is an explanatory diagram.

[0009] In FIGS. 1 and 2, the longitudinal direction of the elongated support plate 7, which is a support member, is A fixed locking rod 8 serving as a fixed member is integrally fixed to the end, and this support plate A long hole 7a is bored in the longitudinal direction of 7, and a slide serving as a sliding member is inserted into this long hole 7a. The ID locking rod 9 is attached.

0010 As shown in FIG. 2, the slide locking rod 9 has a locking member 9a and a handle member 9b. It consists of The locking member 9a has an outer diameter larger than the width direction of the long hole 7a. In both cases, one end portion is formed hollow, and a threaded portion 9a1 is formed on the inner wall thereof. The handle member 9b has an outer diameter that allows it to be inserted into the elongated hole 7a, and has a tip on one side. A threaded portion 9b1 that is screwed into the threaded portion 9a1 of the locking member 9a is formed on the outer periphery of the locking member 9a, and the other A handle portion 9b2 is provided at the side end. Further, 10 is a double nut screwed into the threaded portion 9b2 of the handle member 9b.

[0011] Therefore, insert the handle member 9b with the double nut 10 screwed into the long hole 7a of the support plate 7. By screwing the threaded part 9b1 into the threaded part 9a1 of the locking member 9a and tightening it. , a slide locking rod 9 is attached and fixed to the support plate 7. By turning the slide locking rod 9 with the handle portion 9b2, the slide locking rod 9 can be turned into the With this loosened state, it is possible to slide freely within the range of the elongated hole 7a. come. Therefore, the distance to the fixed locking rod 8 fixed to the support plate 7 can be freely changed. It can be tightened and fixed in position.

0012 Next, attach the printing plate to the plate cylinder unit A using the plate cylinder stopper B having the above configuration. The case will be explained with reference to FIGS. 3 and 4. In addition, Figure 3 shows plate cylinder unit A. FIG. 4 is a perspective explanatory view of the state in which the plate cylinder stopper B is attached, and FIG. 4 is a cross-sectional explanatory view. Ru.

[0013] First, before loading the plate cylinder unit A into the printing machine main body, as shown in FIG. Insert the edge 1a and bottom 1b of the printing plate 1 into the slit 2a. Next, when rotating the reel 3 to tighten the printing plate 1 to the plate cylinder 2, As shown in the figure, the plate cylinder gear 6a of the plate cylinder unit A and the blanket cylinder gear 6b are engaged. Slide the slide locking rod 9 so that the fixed locking rod 8 and the slide locking rod 9 are in contact with each other. Adjust the slide and tighten to secure. As a result, both gears 6a and 6b become unrotatable, and the rotation of the plate cylinder 2 is restricted. Ru. Therefore, in this state, the reel 3 can be easily tightened with a wrench or the like.

[0014] After attaching the printing plate 1 to the plate cylinder 2 as described above, remove the plate cylinder stopper B. , this plate cylinder unit A is loaded into the main body of the printing machine. In this way, by using the plate cylinder stopper B, the plate cylinder unit A can be attached to the machine body. It becomes possible to easily attach the printing plate 1 to the plate cylinder 2 before loading, and the printing stage It is possible to shorten the processing time.

[0015] In addition, in the above-mentioned embodiment, the material of the locking rods 8 and 9 of the plate cylinder stopper B was mentioned. However, when tightening the reel 3 with a wrench, etc., the rotation of gears 6a and 6b should be regulated. Anything is fine as long as you have the strength to control it. Therefore, metal, plastic, wooden, etc. It may be made of various materials. However, if the gears 6a and 6b are made of metal, It is preferable to use a soft metal to prevent damage to the material.

[0016] Further, in the embodiment described above, the plate cylinder stopper B is connected to the plate cylinder gear 6a and the blanket cylinder gear. An example was shown in which it was attached to the meshing part of the blanket cylinder 6b. Of course, it can also be attached to the meshing part of the gear 6b and the impression cylinder gear 6c, and the rotation of the plate cylinder 2 can be regulated. The loading position does not matter as long as it is in the meshing part of the gears that can be controlled.

[0017]

[Effect of the idea]

As mentioned above, this invention uses a plate cylinder stopper to print the plate cylinder unit. Rotation of the plate cylinder can be regulated when removed from the printing machine body. Therefore, the plate cylinder unit The printing plate can be attached before loading the paper into the machine body, which allows printing This makes it possible to shorten setup time and print efficiently.

[Brief explanation of drawings]

FIG. 1 is a perspective explanatory view of a plate cylinder stopper according to an embodiment of the present invention.

FIG. 2 is an exploded explanatory view of a plate cylinder stopper.

FIG. 3 is an explanatory diagram of the use state of the plate cylinder stopper.

FIG. 4 is an explanatory cross-sectional view showing how the plate cylinder stopper is used.

FIG. 5 is an explanatory diagram of a state in which a printing plate is attached to a plate cylinder.

FIG. 6 is an explanatory diagram of a plate cylinder unit.

[Explanation of symbols]

A Plate cylinder unit 7 Support plate B Plate cylinder stopper 7a Long hole 1 Printing plate 8 Fixed locking rod 1a Bite 9 Slide locking rod 1b Butt 9a Locking member 2 Plate cylinder 9a1 Threaded portion 2a Slit 9b Handle member 3 Reel 9b1 Screw Part 4 Blanket cylinder 9b2 Handle part 5 Impression cylinder 10 Double nuts 6a, 6b, 6c Gear

Claims (1)

[Scope of utility model registration request] 1. A plate cylinder stopper for regulating the rotation of a plate cylinder unit having a plate cylinder and an impression cylinder, the plate cylinder stopper being attached to the rotating shaft of each cylinder, and comprising a fixing member for pressing down the meshing portion of meshed gears. Attach the slide member to the support member,
A plate cylinder stopper characterized in that the slide member is attached to a support member so as to be slidable and tightened.