JP2000279865A - Die head holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform the positioning of a die head. SOLUTION: A die head holding device 10 is equipped with a base 11, a lower stage frame 12 provided on the base 11 in a freely slidable manner and an upper stage frame 13 provided on the lower stage frame 12 in a freely slidable manner. A regulation screw is provided to the almost central part in the width direction of the lower stage frame 12 and a stopper with which the regulation screw comes into contact is provided to the base 11. By sliding the lower stage frame 12 to bring the regulation screw into contact with the stopper, the lower stage frame 12 is positioned on the base 11 and the die head 14 attached to the upper stage frame 13 on the lower stage frame 12 can be positioned easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die head holding device for holding a die head for coating a web.

[0002]

2. Description of the Related Art A die head for applying a coating to a web is held by a die head holding device.

[0003] Such a die head holding device has a frame and a die head mounting base slidably provided on the frame to hold the die head.

[0004]

As described above, the die head holding device has the frame and the die head mounting base slidably provided on the frame.

In such a die head holding device,
When coating the web, the die head held on the die head mounting base abuts the web. To stop coating on the web, the die head mount is separated from the web. Then, when coating is performed again, the die head mounting base is advanced again toward the web.

In the case where the die head mounting base is advanced toward the web and coating is performed by the die head as described above, it is necessary to position the die head and the web. Is difficult to obtain. Further, if the positioning between the web and the die head is insufficient, the coating on the web cannot be performed accurately.

[0007] The present invention has been made in view of the above points, and an object of the present invention is to provide a die head holding device capable of accurately positioning a die head with respect to a web.

[0008]

According to the present invention, a base, a lower frame slidably provided on the base, and a die head mounting base slidably provided on the lower frame and holding a die head are mounted. With an upper frame, and an adjustment screw is provided approximately in the center of the lower frame in the width direction,
A die head holding device characterized in that a lower frame is positioned with respect to a base by providing a stopper in contact with an adjustment screw on the base.

According to the present invention, by positioning the lower frame with respect to the base by sliding the lower frame on the frame and abutting the adjusting screw of the lower frame against the stopper of the base. For this reason, the positioning of the die head attached to the upper frame on the lower frame can be performed accurately.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 to FIG. 5 are views showing one embodiment of a die head holding device according to the present invention. 1 to 5
As shown in FIG.
And a lower frame 12 slidably provided on the base 11, and an upper frame 13 slidably provided on the lower frame 12.

A die head mounting base 15 for holding a die head 14 is rotatably provided on the upper frame 13. The die head 14 is for applying a coating to a web 17 wound around a support roll 16.

A support rod 24 having a roller 23 at its tip is fixed to the upper frame 13.
, A cotter 22 that moves up and down along a column 21 fixed to the base 11 is engaged with the cotter.

Further, a driving cylinder 25 is fixed to the lower frame 12, and the shaft 2 of the driving cylinder 25
5a always presses the upper frame 13 toward the cotter 22 side.

As shown in FIG. 3, the lower frame 12
An adjustment screw 30 is attached to the drive cylinder 25 side at a substantially central portion in the width direction.
1 comes into contact with a stopper 31 fixed thereto. The stop position of the lower frame 12 with respect to the base 11 can be made variable by rotating the adjustment screw 30.

As shown in FIGS. 1 and 3, the die head mounting base 15 is formed of a rigid and integrally formed support shaft, and the die head mounting base 15 extends in parallel with the support roll 16 and rotates. Die head 1
4 can be easily changed.

Next, a description will be given of the present embodiment having such a configuration.

First, the die head 14 is mounted on a die head mounting base 15 composed of a rigid, integrally molded support shaft (FIG. 4A). Next, the discharge direction of the die head 14 can be easily adjusted by rotating the die head mounting base 15. In this case, the die head mounting base 1
5 is made of a rigid, integrally molded column, the discharge direction of the die head 14 can be easily adjusted only by rotating the die head mounting base 15 about the axis (FIG. 4B). )).

Next, the lower frame 12 is
Adjustment screw 30 from the preparation position to the support roll 16 side.
Is advanced by a distance A until it contacts the stopper 31.

Thereafter, the upper frame 13 is moved to the drive cylinder 2.
5 to advance to the support roll 16 side by the distance B,
The upper frame 13 is moved to a coating position where the die head 14 contacts the web 17. In this case, the drive cylinder 25 constantly urges the upper frame 13 toward the cotter 22, and moves the cotter 22 upward along the support column 21, whereby the roller 2 engaging with the cotter 22 is moved.
3 moves to the left in FIG. 1 and the upper frame 13 moves forward by the distance B toward the support roll 16.

The moving distance A of the lower frame 13 described above.
Is defined as a safe moving distance from the preparation position to a position where the die head 14 does not contact the web 17, and the moving distance B of the upper frame 13 is a value obtained by subtracting the moving distance A from the distance between the preparation position and the coating position. It is.

In this way, the die head 14 is connected to the web 1
7 are brought into contact with the web 17 by the die head 14.
The coating is applied to During coating, if the splice portion of the web 17 passes through the die head 14, the die head 14 must be retracted from the web 17.

At this time, the lower frame 12 is
1 is retracted to the paper splicing retracting position. By moving the lower frame 12 backward with respect to the base 11 by the same distance as the distance A,
The reversing operation can be easily performed. However,
The amount of movement for retracting the lower frame 12 may be set to a distance A ′ smaller than the distance A so as to minimize the amount of the web 14 being distorted.

The web splicing portion of the web 14 is
, The lower frame 12 advances by an amount corresponding to the retreat, and the coating by the die head 14 is started.

The timing of forward and backward movement of the lower frame 12 is selected so as to minimize the amount of warpage of the web 14.

After the coating operation by the die head 14 is completed, the lower frame 12 and the upper frame 13
Are retracted and return to the preparation position.

As described above, according to the present embodiment, the lower frame 12 is moved backward or forward with respect to the base 11 every time the spliced portion of the web 17 passes through the die head 14. When the lower frame 12 is moved forward, the adjusting screw 30 of the lower frame 12 is brought into contact with the stopper 31 to improve the alignment between the die head and the web 17 and the reproducibility of the position. Therefore, the coating operation on the web 17 can be performed with high accuracy.

[0028]

As described above, according to the present invention, the lower frame can be positioned easily, easily and accurately with respect to the base, so that the positioning of the die head mounted on the upper frame on the lower frame can be ensured. Can be performed.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a die head holding device according to the present invention.

FIG. 2 is a diagram showing an engagement relationship between a roller of a support rod and a cotter.

FIG. 3 is a perspective view showing a die head holding device.

FIG. 4 is a diagram showing a state in which a die head is mounted on a die head holding device.

FIG. 5 is a view showing the operation of the die head holding device.

[Explanation of symbols]

 Reference Signs List 10 die head holding device 11 base 12 lower frame 13 upper frame 14 die head 15 die head mounting base 16 support roll 17 web 22 cotter 23 roll 30 adjusting screw

Continuation of front page (72) Inventor Jiro Ito 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Takashi Aoki 1-chome, Ichigaya-cho, Shinjuku-ku, Tokyo No. 1 Dai Nippon Printing Co., Ltd. F-term (reference) 4F041 AA12 AB01 BA05 BA21 BA56 CA02 CA12 CA22

Claims (2)

[Claims] A lower frame slidably provided on the base; and an upper frame slidably provided on the lower frame and to which a die head mounting base for holding a die head is attached. A die head holding device, wherein an adjusting screw is provided at a substantially central portion in a width direction of a frame, and a stopper is provided on a base to abut the adjusting screw to position the lower frame with respect to the base. 2. The die head holding device according to claim 1, wherein the die head mounting base has a rigid integrally formed support shaft.