JPH06255854A - Guide roller for band-shaped object - Google Patents

Abstract

PURPOSE:To prevent a band-shaped object from meandering by having a guide roller, for the band-shaped object, provided with two or more protrusions continued to a direction of rotation in the lengthwise direction. CONSTITUTION:Two or more protrusions 2 are provided to continue in a direction of rotation with a specific space in the lengthwise direction in the periphery of a guide roller 1. A section of the protrusion 2 is formed in a right square with one side 0.3-0.5mm, and a width of a hollow 3 is set to 0.4-1.0mm. Thus, by running a band-shaped object 4 through the guide roller 1, the band-shaped object 4 can be prevented from side slipping by action of the protrusions 2. Since the band-shaped object 4 is brought into contact with the guide roller 1 in a part of the protrusion 2, a contact area is decreased, and a quantity of static electricity to be generated can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt-shaped guide roller.

[0002]

2. Description of the Related Art Electronic parts such as film capacitors are usually manufactured by winding a band-shaped polymer film. Then, the work of winding the strip is automated by using a winder. This winding machine has a mechanism in which a belt-shaped material such as a polymer film is wound around a supply roller, and the belt-shaped material is wound around the winding roller for a predetermined length. Then, a guide roller is used to run the belt-shaped material from the supply roller to the winding roller to control the direction, tension, and the like. This guide roller is made of Duracon resin, aluminum or the like and has a smooth surface or a satin finish. In the former case, it is 0.1 μm to 1 μm.
Unevenness of about 00 μm and in the latter case 5 μm to 1
It is formed into a concavo-convex shape of about 0 μm (320 mesh to 80 mesh in terms of mesh).

[0003]

However, in the conventional guide roller, when the belt-like object travels, air is trapped between the belt-like object and the influence of static electricity due to friction. It has the drawback of slipping and meandering.

An object of the present invention is to provide a belt-shaped guide roller which can prevent the belt-shaped material from meandering.

[0005]

In order to achieve the above object, the present invention provides a belt-shaped guide roller provided with two or more protrusions continuous in the rotational direction in the longitudinal direction.

The projections have a square, rectangular or trapezoidal cross section.

[0007]

By providing the projections continuous in the rotation direction, the air that is about to be caught between the belt-shaped material and the guide roller can be released into the depressions between the projections. Further, since the strip-shaped material comes into contact with the guide roller at the location of the protrusion, the contact area is reduced and the amount of static electricity generated can be reduced. Further, since the protrusions are continuously provided in the rotation direction, when the belt-shaped object slides sideways, the protrusions bite into a resistor.
For these reasons, it is possible to prevent the strip from sliding sideways.

[0008]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 is a front view showing a part of the guide roller 1 of the belt-shaped material in cross section. This guide roller 1 has a length of 10 to 20.
mm, made of Duracon resin, aluminum, etc. 2 is
Protrusions provided around the guide roller 1 are continuous in the rotation direction and are provided in the longitudinal direction at a predetermined interval of two or more. The projection 2 has a cross section of 0.3 to 0.
It is a 5mm square. And the width of the recess 3 is 0.4
It is ~ 1.0 mm. According to this embodiment, as shown in FIG. 2, when the belt-shaped material 4 is run through the guide roller 1, the belt-shaped material 4 can be prevented from sliding sideways due to the action of the projection 2.

FIG. 3 shows a guide roller 5 according to another embodiment of the present invention, in particular, the projection 6 has a trapezoidal cross section.

[0010]

As described above, according to the present invention, it is possible to obtain a belt-shaped guide roller capable of preventing sideways sliding and preventing meandering because the protrusions continuous in the rotational direction are provided.

[Brief description of drawings]

FIG. 1 shows a front view in which a part of an embodiment of the present invention is shown in cross section.

FIG. 2 is a perspective view showing a state in which a belt-like object is run in the embodiment of the present invention.

FIG. 3 shows a front view of another embodiment of the present invention.

[Explanation of symbols]

1, 5 ... Guide rollers, 2, 6 ... Protrusions, 4 ... Bands.

Claims (1)

[Claims] 1. A guide roller for a strip-shaped article, wherein two or more projections continuous in the rotational direction are provided in the longitudinal direction.