JPS60277Y2 - plate vise - Google Patents

Description

[Detailed Description of the Invention] The present invention is characterized in that the reference position of the vise can be obtained by a one-touch operation regarding the vise of a sheet-fed offset printing press, particularly the side blades of the plate film.

Conventionally, the reference positioning of the plate vise in the vertical direction and the width direction was performed separately, which took a lot of time and was unstable.

The present invention was developed in view of the above points, and does not involve any adjustment using scales, and allows the plate vise to be accurately positioned at the reference position in a very short time with a one-touch operation, which is highly effective.

Embodiments will be described in detail below with reference to figures showing examples.

FIG. 1 is a cross-sectional view of a part of the mechanism for attaching the plate 21 to the cylinder 20 (plate film side), and the plate 21 is clamped and fixed between the clamp base 1 and the clamp plate 23. The vertical registration of the plate 21 is done by adjusting the clamp base 1 on the side of the plate film shown in the drawing in the horizontal direction, and the width (horizontal) direction registration of the plate is This is done by adjusting the clamp base 1 in the vertical direction on the drawing.

Note that it is customary to properly attach the plate 21 to a plate vise consisting of the clamp base 1, clamp plate 23, etc. that has been removed from the cylinder 20, and then attach the plate vise to the cylinder 20. Registration in the vertical direction can be easily and reliably performed by installing the clamp base 1 at a fixed reference position.

The same applies to the registration in the width direction. Note that the clamp base 1 is attached to the cylinder 2 by a bracket (not shown).
0 so that it can slide forward, backward, left and right.

Further, the clamp plate 23 is assembled to the clamp base 1 with a pin 22.

FIG. 2 is a partially omitted plan view of the clamp base 1 of the plate vise according to the present invention.

At both ends of the clamp base 1, there are front gauges 2, 2 for determining the reference position of one plate vise in the vertical direction, and there is also a site near one 70 inch gauge 2 which operates in conjunction with the front gauge. Gauge 3 is provided.

In the figure, 1' indicates the plate vise on the bottom side of the plate grip.

As shown in FIGS. 2 and 3, the front gauge 2 includes a rod-shaped main body 4, a gauge surface 5 at the rear end, and a lock bin 6 planted perpendicularly to the main body 4 at a distance A from the cage surface 5.
and an annular groove 8 provided closer to the center than the lock bin,
It consists of a gauge operating knob 7 provided at the other end of the main body 4.

On the other hand, the clamp base 1 to which the Freon 1-cage 2 is attached has a through hole 10 in the vertical direction of the plate into which the main body 4 is inserted, and the lock bin 6 is fitted into the back of the clamp base 1. A matching concave groove 11 is provided to cross the opening of the through hole 10, and the through hole 10 on the front side of the clamp base 1 has a thick diameter so as to always press the front gauge 2 toward the front side. A coil spring 9 is inserted and fitted.

On the other hand, as shown in FIG. 6, the Zyde gauge 3 is entirely rod-shaped, with its front end having a gauge surface 12 and its rear end 13 having a spherical shape.

Further, there is provided a stepped portion 15 to which a coil spring 14 that presses the rear end of the side gauge 2 so as to always come into contact with the front gauge is locked.

In order to set the plate gripping side blade configured as described above to the reference position, push the operating knob 7 of the front gauges 2, 2 shown in FIGS. 2 and 7 against the coil spring 9,
The lock pin 6 is disengaged from the groove 11, and then rotated to the left or right to position the lock pin 6 on the flat back surface of the clamp base 1 (FIG. 8).

At this time, the gauge surface 5 of the front gauge 2 touches or comes very close to the wall surface 16 of the cylinder 20.

If the gauge surface 5 is in contact with the cylinder wall surface 16, the clamp base 1 will be obstructed by the lock bin 6 and will not move any further toward the cylinder wall surface 16.

Note that in the state shown in Fig. 8, the gauge surface 5 is the cylinder wall surface 16.
If there is a gap between the front gauge 2 and the clamp base 1, press the entire gauge surface 5 toward the cylinder wall side until the gauge surface 5 contacts the cylinder wall while maintaining the relationship between the front gauge 2 and the clamp base 1. base 1
The distance from the back surface of the image can be set to a constant value A.

In other words, the plate vise is set at the reference position in the vertical direction of the plate.

When the front gauge 2 is operated, as can be understood from FIG. 8, the spherical rear end 1 of the sight gauge 3
3 separates from the annular groove 8 of the front gauge 2, and the main body part 4
It is in contact with the large diameter part of.

As a result, the side gauge 3 resists the coil spring 14 [,
and move to the right, so that the gauge surface 12 is aligned with the cylinder wall surface 1.
Close to 7.

As a result, the plate vise does not approach the cylinder wall surface 17 by more than a certain distance B.

Note that the clamp base 1 is automatically pulled against the cylinder wall surface 16 side when the clamp base 1 in the vise on the bottom side of the plate grip is moved to the cellar 1.
, no special attachment members are required.

However, in order to maintain the reference position B in the width direction, the side gauge 3
Adjust the adjustment hole I-19 provided on the opposite side so that the upper surface of the adjustment hole is in contact with the cylinder wall surface 18.

As mentioned above, the plate vise according to the present invention can be quickly set to the standard position in the vertical and width directions by operating the two front gauges 2 in a one-touch manner, reducing the plate installation and adjustment time. It can be shortened.

[Brief explanation of drawings]

Fig. 1 is a partial sectional view showing the relationship between the plate vise and the cylinder, Fig. 2 is a partially omitted plan view of the clamp base of the vise according to the present invention, Fig. 3 is a plan view of the Freon I gauge, FIG. 4 is a rear view of the same, FIG. 5 is a partial rear view of the clamp base, FIG. 6 is a plan view of the side gauge, and FIGS. 7 and 8 are diagrams explaining the operation of the front gauge and side gauge. In the figure, 1 is a clamp base, 2 is a front gauge, 3 is a side gauge, 4 is a rod-shaped main body of the front gauge, 5 is a gauge surface, 6 is a lock bin, 7 is an operation knob, 8 is an annular groove,
9 is a coil spring, 10.10' is a through hole, 11 is a groove, 1
2 is a gauge surface, 13 is a spherical rear end, 14 is a coil spring, 15 is a spring locking step, 16, 17, 18 are cylinder wall surfaces, 19 is a bolt, 20 is a cylinder, 21 is a plate,
Reference numeral 22 indicates a pin, and reference numeral 23 indicates a clamp plate.

Claims (1)

[Scope of utility model registration request] A plate vise is provided between the clamp base 1 and the clamp plate 2 to hold the edge of the plate and fix it to the cylinder of the printing press, and at both ends of the clamp base 1 there are reference positions of the plate vise in the vertical direction. A through hole 10 for attaching a front gauge 2 to determine the
and a concave groove 11 that intersects with the opening on the back side of the through hole 10, and one end communicates with the through hole 10 and the other end penetrates the side surface of the clamp base 1. A hole 10 is provided for mounting a side gauge 3 for determining the front gauge.The front gauge 2 is implanted in the rod-shaped main body part 4, the gauge surface 5, and the main body part 4, and is fitted into the groove 11 to form the front gauge. 2, an annular groove 8 provided on the circumferential surface of the main body 4, an operating knob 7, and a coil spring 9 that acts to constantly move the front cage 2 backward. is rod-shaped,
The front gauge 2 is made up of a gauge surface 12 at the front end, a rear end 13 having a spherical shape that can easily enter and exit the annular groove 8 of the front gauge 2, and a coil spring 14 that acts to keep the side gauge in constant contact with the front gauge. A plate vise characterized in that when the side gauge 3 is moved forward and backward, the side gauge 3 is also moved forward and backward at the same time.