JPH051397Y2 - - Google Patents

Description

[Detailed explanation of the invention] Field of application and purpose of the invention This invention is a shaft of a number cylinder for driving numbers in a sheet-fed printing press (hereinafter referred to as the number shaft).
This relates to a device for easily attaching and detaching the number shaft to the machine base, and after attaching the number axis to the machine base,
Alternatively, the present invention relates to a device that has a mechanism that allows fine adjustment of the position of a numbering machine mounted on a numbering shaft during operation in the axial direction and rotational circumferential direction.

Problems to be solved by the prior art and the invention In the schematic explanatory diagram of a sheet-fed printing press in Fig. 1, printing is performed between a blanket cylinder 1 and an impression cylinder 2, and a sewing machine is printed between a sewing machine impression cylinder 3 and vertical and horizontal perforations 4 and 5. The printed paper is transferred to the number impression cylinder 6 and the number convex cylinders 7, 7a.
A number is typed in between. 8 is a paper discharge device for printed paper, and 9 is a paper discharge pile. A convex number body is a device with multiple numbering machines attached to a number shaft supported by the left and right machine frames, and each time the type of printed matter changes, a large number of numbering machines must be removed and reinstalled. . This replacement work involves adjusting the position of each numbering machine, requiring a great deal of time and effort, and causing a decrease in efficiency. In order to prevent this loss of time and labor, prepare in advance a number cylinder with a number machine installed according to the type of printed material, and when switching between printed materials, remove the shaft of the number cylinder from its bearing and use a different number. A method has been used to improve work efficiency by replacing the convex body with a convex number body, but it is troublesome to remove and attach the convex number body from both bearings of the machine frame, and when attached to the bearings, the convex number body does not move in the axial direction or circumferential direction of rotation. It was very troublesome to manually make fine adjustments to the position of the numbers, that is, the front, rear, left, and right number entry positions. The present invention was devised to solve these problems all at once.The number shaft is divided into three parts, the end parts of the number shaft at both ends, and the middle part of the number shaft in the center. It is configured so that it can be removed from the shaft end, and at the same time only the intermediate part is replaced, and the shaft end can be slightly slid from both bearings after installation, and furthermore, the position of the number convex body can be finely adjusted in the front, rear, left and right directions. It is a combination of additional mechanisms.

Embodiment FIG. 2 is a cross-sectional view of the number axis of an embodiment of the present invention, and 10 is the middle part of the number axis with the central part omitted, and both ends of the axis have a convex tapered shape.
Keys 11, 11a are attached, and axial screw holes 13, 13a for tightening bolts 12, 12a are provided. Reference numerals 14 and 14a denote number shaft end portions that are respectively fitted to both sides of the number shaft intermediate portion 10, and bearings 1 fixed to both machine frames 15 and 15a.
6, 16a. Said 12,1
The tightening bolts 2a are each inserted into a stepped through hole at the end of the number shaft, screwed into a screw hole at the middle part of the number shaft, and tightened the ends of the number shaft and the middle part of the number shaft to lock the keys 11, 11a. The two are fixed together through the wire. Further, the number shaft end portion 14 is slidably pivoted to the bearing 16, and the number shaft end portion 14a is located at a minute distance a left and right with respect to the bearing 16a.
It is possible to slide by +b. Reference numerals 17 and 17a are an axial position adjustment mechanism and a rotational position adjustment mechanism to be described later, and both of them sandwich disc-shaped position adjustment disks 18 and 18a (hereinafter referred to as disks) fixed to the end of the number shaft. This mechanism allows the end of the number shaft to slightly slide relative to the fixed bearing by slightly moving the guide roller left and right. That is, the minute sliding movement of the number shaft end 14 allows fine adjustment of the axial position of the number machine on the number convex body, and the minute sliding movement of the number shaft end 14a allows the key to be attached to the shaft. The meshing position of the fixed helical gear 19 and the helical gear 20 from the drive source is shifted, and the rotational direction position of the number convex shaft is finely adjusted. 21 is a gear that transmits motion to other parts.

When changing the type of printed material and replacing it with another number convex body, first loosen the tightening bolt 12 on the right side of the figure and attach the number shaft end 14 to the number shaft intermediate part 1.
0, move it to the right and support it, then loosen the tightening bolt 12a, separate the middle part of the number shaft from the end 14a of the number shaft, move it to the right, take it out upwards, and replace it with another number shaft. If you install these in the reverse order, you can easily replace the number shaft. Next, an outline of the mechanism for finely adjusting the position of the printed number on the printing paper after replacing the number shaft will be explained.

The fine adjustment mechanism in the axial direction and rotational direction uses a known device, but by adding this mechanism to both end portions of the number shaft of the present invention and combining them, a remarkable effect can be achieved in number shaft operation. was completed. 3 to 5 are a front view, a side view, and a sectional view schematically showing the main parts of this fine adjustment mechanism, in which 14 is the end of the number shaft, and 18 is a disk-shaped fine adjustment disk fixed thereto. , 30, 31, 32, 33
(not shown) is a guide roller attached to sandwich both sides of the disk, 34 is an annular lever that holds these four guide rollers, one end 35 of which is pivotally attached to a fixed shaft 36, and 34 is an annular lever that holds the four guide rollers. The annular lever 34 can swing in a direction perpendicular to the surface of the disk 18. The other end 35a of the annular lever 34 is held with respect to a fixed bracket 40 via a rotation support member 37, an adjustment screw 38, and a rotation support member 39 so that the position in the number axis direction can be finely adjusted. That is, by turning the adjustment knob 41, the rotation support member 37 is moved from side to side in FIG. let The disk 18 is guided by four guide rollers attached thereto, and moves minutely within the bearing 16 in the axial direction together with the end of the number shaft. Therefore, fine adjustment of the axial position of the number machine can be performed immediately after the number convex body is attached to the machine base. In addition, in order to finely adjust the rotational position of the number convex body after it is attached to the machine base, the axial position adjustment mechanism 17a and the helical gear 19 connected thereto in FIG.
Use. By turning an adjustment knob (not shown) in the same way as the adjustment mechanism 17 described above, the desk 18a is slightly moved, and the helical gear 19 fixed thereto is slightly moved in the axial direction, thereby adjusting the helical gear on the drive side. Slightly slide the engagement position with 20 to finely adjust the position in the rotational direction of the number axis.

Effects of the invention According to the present invention, with a simple operation, it is not only possible to quickly and easily replace the number axis, which was conventionally troublesome and time-consuming, but also to fine-tune the position of the number machine in the front, rear, left and right directions after the number axis has been replaced. Adjustments can also be made very easily, quickly and reliably.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of a sheet-fed printing press, Fig. 2 is a sectional view of an embodiment of the invention, Fig. 3 is a front view of the main part of the fine adjustment mechanism, Fig. 4 is a side view of the same, and Fig. 5 is a sectional view of the embodiment of the invention. It is a sectional view of section A and A of the same. 10... Number axis middle part, 16, 16a...
Bearing, 14, 14a...Number shaft end, 17
...Axial direction position adjustment mechanism, 17a...Rotational direction position adjustment mechanism, 12, 12a...Tightening bolt.

Claims (1)

[Scope of utility model registration request] A numbering machine is attached to the middle part,
The middle part of the number shaft has tapered ends, and the left and right end parts of the number shaft are pivoted for fine axial sliding adjustment with respect to the bearings of both machine frames, and have internally tapered holes at each inner end. , an axial position adjustment mechanism attached to one number shaft end, a rotational position adjustment mechanism attached to the other number shaft end, and a tapered portion at both ends of the middle part of the number shaft to both number shaft ends. Fits into the tapered hole on the inner surface of the
It is composed of both tightening bolts that pass through the number shaft ends and tighten the left and right number shaft ends to the number shaft intermediate part, and by loosening both the tightening bolts, one number shaft end and the number shaft intermediate part are tightened. A device for attaching and detaching a number axis position adjustment mechanism for a printing press, in which the intermediate part of the number axis can be attached and detached from the machine body by moving it in the axial direction.