JPH0363125A - Embossing roll device - Google Patents

Abstract

PURPOSE:To make it possible to easily change over from or to the front embossing to or from the rear embossing by a simple constitution wherein a first embossing roll provided with such an arrangement in which, between a rubber supporting roll and the first embossing roll, plastic film is pinched by being pressed against and separated from the rubber supporting roll, and a second embossing roll, which is arranged on the opposite side of the first embossing roll about the rubber supporting roll, are equipped. CONSTITUTION:A first and a second embossing rolls 18 and 21 function as chill rolls by being fed with cooling water 24. While embossing is performed by pinching plastic film 2 between one of the embossing rolls and a rubber supporting roll 15, the rubber supporting roll 15 is effectively cooled by the other of the embossing rolls being pressed against the rubber supporting roll 15. The embossing operation of the first side of the plastic film 2 and that of its second side can be easily changed over from and to each other. Thus, the device concerned is contrived to be simplified with the embossing roll device 10. In addition, since the embossing roll device 10 is provided so as to be protruded from the frame 23 of a calendar, maintenance such as the exchange of rolls and the like can be easily performed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an embossing roll device.

[Prior art] Figure 3 shows an example of an embossing roll device that is placed on a calendar line for manufacturing plastic film and embosses (carves: adds a pattern) to plastic film. are shown together.

As shown in the figure, after the plastic film 2 from the calender roll 1 passes through a tick-off roll 3 for preventing width shrinkage, both the vertical type I and the horizontal type An embossing roll device 7 comprising an embossing roll 4 for embossing the surface of the embossing roll 4, a rubber support roll 5 for supporting the pressing of the embossing roll 4, and a cooling roll 6 for cooling the rubber support roll 5.
Then, it passes through a cooling roll 8 and is wound up into a winder 9.

In the embossing roll device 7, as shown in the figure, the vertical type I
In the case of , on the left side of plastic film 2, also horizontal ■
In this case, the upper surface of the plastic film 2 can be embossed.

However, in recent years, due to the processing of the plastic film 2 in the next step, it has become necessary to be able to selectively apply embossing to the front and back sides of the plastic film 2.

In order to be able to carry out embossing by turning the front and back sides as described above, normally, as shown in FIG. It is conceivable to install two-stage embossing roll devices 7a and 7b in which the arrangement is reversed, and to switch between them for use.

[Problems to be Solved by the Invention] However, in the case described above, since it is necessary to install two sets of embossing roll devices 7a and 7b, the structure of the device becomes complicated and expensive, and furthermore, the structure of the device becomes complicated and expensive. Various problems arise, such as an increase in the occupied area.

The present invention was made by focusing on the above-mentioned conventional problems.
It is an object of the present invention to provide an embossing roll device capable of embossing a plastic film with a simple configuration and easily turning it inside out.

[Means for Solving the Problems] The present invention provides a movable table movable in a direction substantially perpendicular to the flow surface of a traveling plastic film, a rubber support roll supported on the movable table, and a first pressing device. a first embossing roll that presses and separates from the rubber support roll to sandwich the plastic film between the rubber support roll; and a second pressing device that presses and separates the plastic film from the rubber support roll; This invention relates to an embossing roll device characterized by comprising a second embossing roll that presses and separates from a position opposite to the pressing position to sandwich the plastic film between it and a rubber support roll.

[Function] A plastic film is passed between the rubber support roll and the first embossing roll, which is provided so as to be able to be pressed and separated from the outer periphery of the rubber support roll, or it is pressed and separated from the other side of the outer periphery of the rubber support roll. By switching whether or not to pass a plastic film between the second embossing roll and the rubber support roll, the surface to be embossed can be arbitrarily switched.

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

FIGS. 1 and 2 show an embodiment of the present invention applied to the vertical type I shown in FIG. 3, and parts in the drawings with the same reference numerals as in FIG. 3 represent the same parts.

As shown in FIG. 1, between the tick-off roll 3 and the cooling roll 8, the embossed surface is switched by moving in a direction substantially perpendicular to the flow surface of the plastic film 2 traveling in the input direction. A mobile embossing roll device 10 is provided.

The movable embossing roll device IO includes a movable table 13 that moves in a direction substantially perpendicular to the flow surface of the plastic film 2 by a drive screw 12 that is rotationally driven by a drive device 11, and a fixed base 14 on the movable table 13. The rubber support roll 15 is supported via a slide block 17 that moves on the movable table 13 in the moving direction of the movable table 13 and in the circumferential direction by a first pressing device 16 such as a cylinder. A first embossing roll 18 that presses against and separates from the support roll 15, and a rotating arm 2 that rotates around a fulcrum pin 19.
a second embossing roll 21 that is attached to the rubber supporting roll 15 and capable of pressing and separating from the side opposite to the pressing side of the first embossing roll 18; and the rotating arm 2.
It has a second pressing device 22 that drives the rotation of 0.

The movable embossing roll device 1O is provided extending from the calendar frame 23, so that maintenance such as roll replacement can be easily performed.

Further, cooling water 24 is supplied to each of the first and second embossing rolls 18.21 to cool the rubber support roll 15, and the first and second embossing rolls 18.21 are chill rolls. It has the function of

In the figure, reference numerals 25 and 28 are adhesive sheets made of cotton, felt, cloth, etc. that are attached to the plastic film 2, 27 is a pressing roller for this purpose, and 28 is a guide roller. When the width shrinkage of the plastic film 2 is prevented by pasting the sheet 25, the Tikuo roll 3 can be retracted to the position shown by the two-dot chain line.

In FIG. 1, the plastic film 2 is sandwiched between the first embossing roll 18 and the rubber support roll 15, and the first embossing roll 18 is pressed by the first pressing device 16, so that the first part of the plastic film 2 (on the left side) is pressed. This shows the case of embossing on the surface).

At this time, the first pressing device 16 can finely adjust the pressing force depending on the material of the plastic film 2 and the like.

Furthermore, by moving the movable table 13 using the drive device 11, the sandwiching position between the first embossing roll 18 and the rubber support roll 15 can be changed, and an appropriate squeezing effect can be given to the plastic film 2.

When switching from the state shown in Figure 1 above to embossing the second side (right side) of the plastic film 2,
With the plastic film 2 gone, move the moving table 13 in the direction of the arrow in FIG. After making the plastic film 2 substantially coincident with the direction position, the production of the plastic film 2 is started, and the second pressing device 22 rotates the rotary arm 20 in the direction of the arrow to press the plastic film 2 between the second embossing roll 21 and the rubber support roll 5. The second surface (right side) of the plastic film 2 is embossed by holding the plastic film 2 and pressing it with the second embossing roll 21 . In this case as well, the pressing force of the second embossing roll 21 can be finely adjusted by the second pressing device 22.

The first and second embossing rolls 18 and 21 are each supplied with cooling water 24 and function as chill rolls, so one of them holds the plastic film 2 between it and the rubber support roll 15. By pressing the other side against the rubber support roll 15 during embossing, the rubber support roll 15 can be effectively cooled.

As a result of the above, it is possible to easily switch between embossing the first and second surfaces of the plastic film 2, and the movable embossing roll device 10 simplifies the device. Since the roll device IO is provided so as to protrude from the calendar frame 23, maintenance such as roll replacement can be easily performed.

It should be noted that the embossing roll device of the present invention is not limited to the above-mentioned embodiments, and can be implemented in the horizontal type (■) in addition to the vertical type (2) in the same manner, and the pressing methods of the first and second pressing devices are as follows. Of course, various selections may be made, and various other changes may be made without departing from the gist of the present invention.

[Effects of the Invention] As explained above, the embossing roll device of the present invention has an excellent effect of being able to emboss a plastic film by easily turning it inside out with a simple configuration.

[Brief explanation of drawings]

FIG. 1 is a side view of an embodiment of the present invention, FIG. 2 is an operation diagram showing a state in which the embossed surface has been switched from FIG.
Fig. 3 is a side view showing a conventional embossing roll device in both vertical and horizontal types, and Fig. 4 is a side view showing a case where the embossing roll device is provided in two stages to change the front and back sides of the conventional embossing process. It is. 1 is a calender roll, 2 is a plastic film, 3 is a tick-off roll, 8 is a cooling roll, 9 is a winder, 10 is a movable embossing roll device, 13 is a moving table, 15 is a rubber support roll, 1B is a first pressing Device,
1g is the first embossing roll, 20 is the rotating arm, 21 is the second embossing roll, 22 is the second pressing device, and A is the running direction of the plastic film. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd.

Claims (1)

[Claims] 1) A movable table movable in a direction substantially perpendicular to the flow surface of the traveling plastic film, a rubber support roll supported on the movable table, and a first pressing device that presses and releases the rubber support roll. a first embossing roll which is adapted to sandwich the plastic film with the rubber support roll; and a second pressing device which presses and releases the plastic film to a position opposite to the pressing position of the first embossing roll on the rubber support roll. 1. An embossing roll device comprising: a second embossing roll configured to move and sandwich a plastic film between the rubber support roll and the second embossing roll.