JPH08192507A - Horizontal registering regulating device of plate cylinder - Google Patents

Abstract

PURPOSE: To rapidly and accurately regulate a register pin to the diversification of the lateral length of a web. CONSTITUTION: A graduated nut 5 is rotated by an exclusive adjusting rod. At this time, since the graduated nut 5 is prescribed in its axial movement by the graduations and reference line applied block 4 and press block 6 fixed to a plate cylinder 1, a bar 2 fitted with a register pin is axially moved. A register pin 7 is attached to the bar 2 through a guide member 3 and axially moved along with the bar 2. The moving quantity of the register pin 7 is read from the reference line of a reference line applied nut 8 fixed to the bar and the graduations of a graduations and reference line applied block 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lateral registration adjusting device for a plate cylinder.

[0002]

2. Description of the Related Art In a web rotary printing press, it is known that the width of a printed web changes in relation to the properties of the web and the dampening water absorption during printing. Such a width change may be different for each printing device. The width change is
Increasing outward from the center of the web or the center of the plate cylinder. As a result, the plate mounted on the plate cylinder must be individually adjusted with respect to the widthwise register.

A conventional example of this lateral register adjusting device will be described with reference to FIGS. 3 and 4. Reference numeral 101 is a plate cylinder, 102 is a groove of the plate cylinder 101, and 103 and 104 are axially arranged on the plate cylinder 101. And the inner plate, the same plate 103, 104
Is fixed at a predetermined position in the body groove 102. 105, 106
Is a registration plate (or register pin) of the printing plates 103, 104, 107 is a lateral registration adjusting device, 109
Is a casing attached to the end face of the plate cylinder 101, and 108 is attached to the same end face 109, and the lateral registration adjusting mechanism 107 is installed in the casing 108. That is, 115 is a hole provided in the vicinity of the body groove 102 in parallel with the body groove 102, 110 is a tubular adjusting member on the registration plate 105 side, 111 is a rod-like adjusting member on the registration plate 106 side, and a rod-like adjustment member is provided. A member 111 is slidably fitted in the tubular adjustment member 110.

Reference numeral 113 denotes a threaded portion provided on the inner peripheral surface of the outer end portion of the tubular adjusting member 110, and 114 denotes a threaded portion provided on the outer peripheral surface of the outer end portion of the rod-shaped adjusting member 111. Have different pitches. Reference numeral 112 is an adjusting screw screwed into the screw portions 113 and 114. In the lateral register adjusting device 107, when the adjusting screw 112 is rotated, the tubular adjusting member 110 and the register plate 105 and the rod-shaped adjusting member 111 and the register plate 106 are moved by different distances in the axial direction.
At that time, the outer printing plate 103 moves relatively larger than the inner printing plate 104 to compensate for the width change of the web.

[0005]

Since the conventional lateral register adjusting device 107 shown in FIGS. 3 and 4 has no scale, the amount of movement of the register plates 105 and 106 is adjusted by a dedicated measuring tool after adjustment. It was necessary to confirm, and it took a lot of time for adjustment work. The present invention has been made in view of the above problems, and an object of the present invention is to provide a plate cylinder in which the register pins can be adjusted quickly and accurately with respect to the diversification of the web length in the width direction. In point.

[0006]

In order to achieve the above object, a lateral registration adjusting device for a plate cylinder according to the present invention includes a register pin supported by the plate cylinder so as to be axially movable, and a register pin for the register pin. An adjusting mechanism with a scale for adjusting the amount of movement in the axial direction is provided (Claim 1). In the lateral register adjusting device of the plate cylinder, the scale-equipped adjusting mechanism includes a presser block fixed to the plate cylinder, a bar with a register pin supported by the presser block so as to be axially movable, and a male screw of the bar. With a graduated nut screwed to the section, the scale block and the reference line block fixed to the plate cylinder by sandwiching the same graduated nut with the pressing block, and a reference line nut fixed to the register pin bar. It may be configured by (claim 2).

[0007]

The horizontal registration adjusting device of the plate cylinder according to the present invention is constructed as described above, and the graduated nut is rotated by a dedicated adjusting rod. At that time, the graduated nut is restricted in axial movement by the graduated and reference lined block fixed to the plate cylinder and the presser block fixed to the plate cylinder. Move in the axial direction. A register pin is attached to the bar, and the register pin moves in the axial direction together with the bar. The amount of movement of the register pin at this time is read as follows. For example, when the screw pitch of the graduated nut and bar is 1 mm,
The interval between the scale and the scale of the block with reference line is preferably 1
When the graduated nut makes one revolution in mm, the register pin moves 1 mm toward the center of the body or the shaft end.
This movement amount is read by the reference line of the nut with the reference line and the scale and the scale of the block with the reference line fixed to the bar. In addition, in order to read the amount of movement of 1 mm or less, the scale nut is graduated in the circumferential direction, for example, into 20 equal parts. When the screw pitch of the scale nut and bar is 1 mm, the minimum movement is 0.05 mm. Read the amount. At that time, the reading is performed by the reference line of the block with scale and reference line and the scale of the nut with scale.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a lateral registration adjusting device for a plate cylinder according to the present invention will be described with reference to an embodiment shown in FIGS. 1 and 2. 1 is a plate cylinder and 2 is a register pin parallel to an axis A of the plate cylinder 1. With bar,
A pressing block 6 is fixed to the plate cylinder 1. The pressing block 6 supports a bar 2 with a register pin so as to be movable in the axial direction.

Reference numeral 5 is a graduated nut, and the graduated nut 5 is screwed onto the male screw portion of the bar 2 with a register pin. Four
Is a block with scale and reference line fixed to the plate cylinder 1. The scale-equipped nut 5 is sandwiched between the block with scale-equation and reference line 4 and the presser block 6, and the same scale-equipped nut 5
The axial movement of is restricted. Reference numeral 8 is a nut with a reference line, the nut 8 with a reference line is fixed to the bar 2 with a register pin, and the reference line of the nut 8 faces the scale and the scale of the block 4 with the reference line.

Reference numeral 7 is a register pin, 3 is a guide member for sandwiching the register pin 7, and the guide member 3 is fixed to the bar 2. Next, the operation of the lateral registration adjusting device for the plate cylinder shown in FIGS. 1 and 2 will be specifically described. The graduated nut 5 is rotated by a dedicated adjusting rod (not shown). At that time, since the graduated nut 5 is restricted in its axial movement by the graduated and reference lined block 4 fixed to the plate cylinder 1 and the holding block 6 fixed to the plate cylinder 1, The bar 2 with a register pin moves in the axial direction.
A register pin 7 is attached to the bar 2 via a guide member 3.
Is attached, and this register pin 7 moves in the axial direction together with the bar 2.

The amount of movement of the register pin 7 at this time is read in the following manner. For example, when the screw pitch of the graduated nut 5 and the bar 2 is 1 mm, the interval between the graduated scale and the block 4 with the reference line is preferably 1 mm, and when the graduated nut 5 rotates once (360 ° rotation), the register The pin 7 moves by 1 mm toward the center of the body or the shaft end.

This moving amount is determined by the reference line and scale of the nut 8 with the reference line fixed to the bar 2 and the block 4 with the reference line.
Read with the scale. Further, in order to read the movement amount of 1 mm or less, for example, 2 in the circumferential direction of the graduated nut 5.
The scale is divided into 0 equal parts, and the graduated nut 5 and bar 2
If the screw pitch is 1 mm, read the movement amount to a minimum of 0.05 mm. The reading at that time is performed by the reference line of the block 4 with scale and reference line and the scale of the nut 5 with scale.

[0013]

As described above, in the lateral register adjusting device of the plate cylinder of the present invention, the graduated nut is rotated by the dedicated adjusting rod. At that time, the graduated nut is restricted from moving in the axial direction by the graduated and reference lined block fixed to the plate cylinder and the presser block fixed to the plate cylinder.
The bar with register pin moves in the axial direction. A register pin is attached to the bar, and the register pin moves in the axial direction together with the bar. The amount of movement of the register pin at this time is read as follows. For example, when the screw pitch of the graduated nut and bar is 1 mm, the graduation and the interval between the scales of the block with the reference line are preferably 1 mm,
When the graduated nut rotates once, the register pin moves 1 mm toward the center of the body or the shaft end. This movement amount is read by the reference line of the nut with the reference line and the scale and the scale of the block with the reference line fixed to the bar.
In addition, in order to read the amount of movement of 1 mm or less, the scale nut is graduated in the circumferential direction, for example, into 20 equal parts. When the screw pitch of the scale nut and bar is 1 mm, the minimum movement is 0.05 mm. Read the amount. Since the reading at that time is performed with the reference line of the block with scale and reference line and the scale of the nut with scale, the register plate (register pin) of the register plate (register pin) is adjusted with a dedicated measuring tool after adjusting the register pin as in the conventional case. There is no need to check the amount of movement,
The register pins can be quickly and accurately adjusted to the diversification of the web length.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lateral register adjusting device for a plate cylinder of the present invention.

FIG. 2 is a vertical cross-sectional side view of the lateral register adjustment device.

FIG. 3 is a vertical sectional side view showing a conventional lateral registration adjusting device for a plate cylinder.

FIG. 4 is an end view of the lateral register adjustment device.

[Explanation of symbols]

 1 plate cylinder 2 bar with register pin 3 guide member for register pin 7 block with scale and reference line 5 nut with scale 6 presser block 7 register pin 8 nut with reference line

Claims (2)

[Claims] 1. A lateral register of a plate cylinder, comprising: a register pin movably supported on the plate cylinder; and a scale adjusting mechanism for adjusting an axial movement amount of the register pin. Adjustment device. 2. The adjusting mechanism with scale is screwed to a presser block fixed to the plate cylinder, a bar with a register pin supported by the presser block so as to be axially movable, and a male screw part of the bar. A graduated nut, a block with a graduated scale and a reference line fixed to the plate cylinder by sandwiching the graduated nut with the pressing block, and a nut with a reference line fixed to the bar with a register pin. 1. A lateral registration adjusting device for a plate cylinder according to 1.