JPS61117095A - Precision cutting method of wide tape-shaped body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for precisely cutting a wide tape-like body, and in particular, a method for cutting a wide-width tape-like body into narrower tape-like bodies. The present invention relates to a method that requires no precision Δ and has an extremely simple configuration.

Since the present invention can be cut into particularly fine and precise widths, it is possible to produce tapes having exactly a predetermined width, such as masking tapes, decorative tapes, adhesive tapes, and various other tape-like bodies. It is preferably applied when

[Prior art] Conventionally, in order to make a narrow tape from a wide tape-like material, a flat-blade cutter was inserted into the running path of the wide tape-like material to cut it into the tape-like material. There was a method of cutting continuously by applying (Prior art example 1) There is also a method in which a tape-shaped body is run on a substrate and the cutting edge of a flat-blade cutter is applied to the substrate to continuously cut the tape-like body. (Prior art example 2) Further, two rows of disc-shaped cutters are grouped,
There was a method in which the individual pieces were assembled one by one, a wide tape-shaped body was inserted into the intersection of the combinations, and the tape-shaped bodies were cut by rubbing the blade edges of the disc-shaped cutters of each combination. (Prior Art Example 3) [Problems to be Solved by the Invention] In these conventional technologies, for example, the method having the configuration of Prior Art 3 can precisely cut the tape-shaped body to a desired width, and also cut continuously. However, on the other hand, the disk-shaped cutter that rubs together requires a high degree of precision, and each piece is extremely expensive, so the cutting machine itself The problem is that it is quite expensive, requires precision in its assembly, and requires a great deal of skill and labor for maintenance, inspection, and assembly. Furthermore, although Prior Art 1 is a very simple method, distortion occurs in the tape-like material to be cut depending on the thickness of the cutter, and the accuracy of the cut pieces is not sufficient. Conventional technology 2 includes
Because the edge of the flat blade cutter touches the board, the edge is easily damaged and had to be replaced frequently.

[Means and operations for solving the problems] The present invention solves the problems in the prior art described above, in which a thin flat blade cutter is arranged on the running surface of a guide member having a curved tape running surface, and cutting is performed. This is a precision cutting method for a wide tape-like object, which is characterized in that the wide-width tape-like object to be cut is passed through the flat-blade cutter and made to run along the running surface, thereby cutting the tape-like object.

[Example] Hereinafter, the present invention will be described in detail based on Examples.

The wide tape-shaped body used in the present invention is paper, plastic, thin metal foil, or a composite material made of these materials, and is cut into a certain width appropriate for the material to be made into a tape-shaped body.

The width, thickness, etc. are determined according to the intended use of the tape-shaped body and are determined as appropriate. This tape-shaped body may be composed of only the above-mentioned material, or a coating layer may be provided on the tape-shaped body made of the above-mentioned material as appropriate.

The coating layer includes a colored layer, an adhesive layer, a reinforcing layer, and other layers required depending on various uses. Each layer is conventionally known, and detailed description thereof will be omitted. A wide tape-like body is usually stored in a rolled form, and the present invention is for cutting such a tape-like body from a roll into finer and more accurate dimensions.

The apparatus or equipment used in the method of the present invention includes a guide member having a curved tape running surface and a thin flat blade cutter disposed on the light transmitting surface of the guide member. As a guide member having a tape running surface forming a curved surface, the running surface is a smooth surface so that the tape-shaped body can come into contact with it and run smoothly, and its shape is, for example, a surface forming part of a cylinder. It may be. The surface is curved in shape to make the tape-like object slippery, and the surface may be made of a material with high slipperiness, such as the glossy surface of a hard metal or a fluorine-based synthetic resin. . If necessary, the surface can be made of a highly abrasion resistant material.

A guide member having such a running surface may be provided with a guide frame on the side of the running path so that the tape-shaped body can easily transmit light and not deviate from the running path. The position U of the guide frame is precisely determined depending on the width of the tape-like material to be cut. On the other hand, the guide member described above may be a cylindrical roll. Even in the case of rolls, the materials, installation of guide frames, etc. are the same as above, if necessary. Of course, the cylindrical roll may rotate itself.

The above-mentioned Eve member has a flat blade cuckoo placed on its running surface. The flat blade cutter should be as thin as possible. The blade has a great effect on the precision of cutting, so it is best to use one that is sharp and has high abrasion resistance. It is natural for the blade of a flat blade cutter to lose its sharpness due to wear as the cutting process continues, but in this case, the blade should be moved (shifted) so as not to change its position on the guide member. ) With the new part of the blade, the tape can be cut sharply and precisely again.

In the present invention, the above-described tape-shaped body is suspended in a cutting device having such a structure and cut.

1 and 2 illustrate exemplary embodiments of the invention. FIG. 1 is a side view of the device and a sectional view at the position of the flat blade cutter. As shown in the figure, the guide member 1 has a tape-shaped running path on its outer surface that is in contact with the blade of a flat blade cutter 2, and guide frames are provided at both ends of the running path. ing. The tape-shaped body 3 is suspended by the guide member 1 and travels along a running path as indicated by the arrow in the figure, and is cut by the flat blade cutter 2. FIG. 2 is a 90-degree rotated view of the position shown in FIG. The way the tape-shaped body 3 is cut is clearly shown. Although only one flat blade cutter 2 is shown in FIGS. 1 and 2, several flat blade cutters 2 may be arranged in parallel to the positions shown in the figures.

In this case, the blades do not need to be arranged at equal intervals, and the intervals can be determined as desired depending on the width of the tape-like body required. According to such an embodiment, a large number of tape-shaped bodies to be obtained can be cut at one time, and the efficiency of manufacturing tape-shaped bodies can be significantly improved.

[Effects of the Invention] According to the present invention, the problems in the prior art described above can be solved, and the cutting dimensional accuracy can be greatly improved by an extremely simple method without being affected by the thickness of the tape-shaped body.

[Brief explanation of the drawing]

1 and 2 are cross-sectional views of embodiments of the present invention. In the figure, 1... guide member, 11... guide frame.

Claims (3)

[Claims] (1) A thin flat-blade cutter is arranged on the running surface of the guide member material having a curved tape running surface, and the wide tape-like object to be cut is passed through the flat-blade cutter and run along the running surface. A method for precisely cutting a wide tape-like object, the method comprising: cutting the tape-like object by cutting the tape-like object. (2) The method for precisely cutting a wide tape-like object according to claim (1), wherein the running surface is a part of a cylindrical roll. (3) Precise cutting of a wide tape-like body according to claim (1), characterized in that a guide frame is provided at a distance equal to the width of the wide-width tape-like body running on the running surface. Method.