JPH0825287A - Metal tape cutter and using method thereof - Google Patents

Abstract

PURPOSE:To provide a cutter cutting a metal tape without generating burrs by a simple method and provide this method. CONSTITUTION:This metal tape cutter is constituted of a cutting edge 1 made of an alloy or a ceramic and a flat plate arranged in parallel to face the tip of the cutting edge 1, and the cutting edge 1 is pressed down while a metal tape 3 is held in parallel with the flat plate. The metal tape 3 is cut while it it covered with resin sheets 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape-shaped metal cutting device and a metal tape cutting method using the cutting device.

[0002]

2. Description of the Related Art Conventionally, when a metal tape is easily cut, pliers for cutting metal, scissors for metal cutting, shears, chisel and a metal cutting table for receiving it are used.

[0003]

When attempting to cut a metal tape with pliers, it is carried out by sandwiching it between opposing metal blades. However, slight bending of the blade causes bending of the tape cutting portion, which is a problem. There was a problem that the cutting could not be performed, and even if it could be cut, a burr was generated at the cutting portion. When you try to cut with a chisel, you will not be able to cut well unless the blade part of the chisel and the table that receives it are accurately parallel, and the chisel receives There were problems such as cutting into the table and bending of the tape cutting portion, which greatly depended on the skill of the user. The metal tape cutting device of the present invention is made to solve the above-mentioned problems, and can cut a metal tape easily without burring or bending regardless of the skill of the user. An object of the present invention is to provide a tape cutting device and a method thereof.

[0004]

[Means for Solving the Problems] In order to achieve the above object,
The metal tape cutting device of the present invention comprises a cutting blade made of an alloy or ceramics for cutting a tape-shaped metal, a ceramic plate arranged to face the cutting blade, and a resin sheet wrapping the metal tape. . FIG. 1 shows an example of the metal tape cutter of the present invention. The metal tape to be cut is wrapped in a resin sheet and placed on a ceramic plate. A cutting blade made of an alloy or ceramics arranged in parallel to face the ceramic plate first bites into the resin sheet on the metal tape, and when the metal tape is reached, the cut portion of the tape is bent (FIG. 2). Here, by cutting the tape cutting part into the resin sheet under the tape,
Prevents bending that occurs on the cut surface. When further force is applied, the metal tape is cut without bending at the cut portion (Fig. 3). The parallelism between the cutting blade and the ceramic plate may be accurately obtained in advance by, for example, the device shown in FIG.

[0005]

The ceramic plate arranged opposite to the cutting blade has hardness equal to or higher than that of the cutting blade, and the blade does not bite into the cutting blade, and cutting can be performed according to the angle of the cutting edge. The resin sheet on the top that covers the metal tape is soft, and the cutting edge properly bites into the cutting position, preventing subtle swinging of the cutting edge and maintaining the parallelism correct.

That is, the upper and lower sheets have the effect of keeping the tape stable. Also, the lower sheet helps the metal tape bend easily depending on the angle of the cutting edge. When the blade edge is pushed down further, the tape is cut integrally with the resin between the ceramic plate and the resin pressed extremely thinly along the cutting line, so the metal tape can be torn off. Is prevented from occurring. The parallel plate facing the cutting blade essentially needs to be harder than the cutting blade, but the ceramic plate is simple and can be obtained at low cost.

[0007]

【Example】

Example 1 Hastelloy was used as the metal tape to be cut. The width is 10 mm and the thickness is 0.2 mm. A polyethylene sheet having a thickness of 0.05 mm was used as a resin sheet covering the upper and lower surfaces of the tape. The material of the ceramics plate arranged to face the cutting blade was YSZ (yttria-stabilized zirconia). The material of the cutting edge was tungsten carbide cemented carbide. The Rockwell hardness is A89 or more. FIG. 5 shows the size of the cutting edge. Table 1 shows the results of cutting by changing the angle of the cutting edge. In FIG. 6, 3
The cross section of the tape cut | disconnected by the 0 degree, 90 degree, and the cutting edge of 150 degrees is shown. If the angle of the cutting edge becomes smaller, cutting is possible, but flash tends to occur. Further, when the angle of the cutting edge becomes large, the occurrence of flash can be suppressed, but it becomes difficult to cut. Similar results were obtained with metal tapes such as silver, stainless steel, Inconel, and copper. From this result, it can be said that it is effective that the angle of the cutting edge is between 60 ° and 120 °.

[0008]

[Table 1]

(Example 2) The angle of the cutting edge was fixed at 90 °, and the tape was cut while changing the thickness of the tape. The tape is made of stainless steel and has a tape width of 10 mm.
As a resin sheet that covers the top and bottom of the tape, 0.05 mm
A thick polyethylene sheet was used. Table 2 shows the cutting results for each tape thickness. As a result, there was almost no dependency on the thickness of the tape, but the tape of 1 mm thickness was bent and could not be cut well. It is considered that this is because the force of pressing the cutting edge against the tape was insufficient.
In this embodiment, the cutting is performed only manually,
By applying a mechanical assisting force, even tapes with a thickness of 1 mm or more can be cut without flash,
This can be easily inferred from the results of this example.

[0010]

[Table 2]

Example 3 The same experiment as in Example 2 was conducted using a silver tape. The width of the tape is 10 mm. As a resin sheet that covers the top and bottom of the tape, 0.05
A mm-thick polyethylene sheet was used. Table 3 shows the cutting results for each tape thickness. 1.0m because silver is softer than alloys such as stainless steel and Hastelloy
It was possible to cut even a very thick tape of m or 1.2 mm, but if it exceeds that, bending occurs in the cut part,
It was difficult to cut. Similar to the second embodiment, the cutting is performed only by human power in the present embodiment, but it is possible that even a thicker tape can be cut without a flash by applying a mechanical assisting force. It can be easily guessed from the result of.

[0012]

[Table 3]

Example 4 Cutting was performed while changing the thickness of the resin sheet covering the metal tape. As a metal tape to be cut, stainless steel having a width of 10 mm and a thickness of 0.2 mm was used. The resin sheet has a thickness of 0.03 to 0.1 mm and is made of polyethylene. Table 4 shows the cutting results.

[0014]

[Table 4]

When there is no resin sheet, a deviation occurs between the cutting edge and the tape surface to be cut, and the cutting position is not stable,
Further, the metal tape was bent and was difficult to cut. By covering the upper and lower surfaces of the metal tape with a resin sheet, there was no gap between the cutting edge and the tape surface, and stable cutting was possible. The thickness of the resin sheet was not dependent on the stated range, and stable cutting was possible at all thicknesses. Regarding resin sheet thicknesses other than those described in this example, we have not confirmed that it is difficult to obtain the resin sheet, but we can infer from this result that it can be cut if there is no significant difference compared with the thickness of the metal tape to be cut. Seems to be.

The thickness that can be cut depends largely on the material of the tape and the force at the time of cutting. The results of this embodiment are intended to investigate the thickness of the tape and the occurrence of burrs and bends. It does not specify the thickness that can be cut. Further, in the present embodiment, a tape having a tape width of 10 mm was used, but this is because a blade tip having a width of 12 mm was used. In principle, what kind of blade can be used if the parallelism between the blade tip and the cutting table is accurate. The width of the tape can also be cut, and does not define the cuttable width. The material of the cutting edge may be any material as long as it can be cut, but it is preferable to use a material having a Rockwell strength of A88 or more, such as cemented carbide, from the viewpoint of wear resistance.

[Brief description of drawings]

FIG. 1 is a schematic view of the use of the tape cutting device according to the present embodiment.

FIG. 2 is a diagram showing a situation in which the tape according to the present embodiment is cut.

FIG. 3 is a diagram showing a situation where the tape according to the present embodiment is cut.

FIG. 4 is a schematic view showing an example of a tape cutting device.

FIG. 5 is a schematic view of the size of the cutting edge.

FIG. 6 is an explanatory diagram for each section for explaining the cross section of the tape cutting portion.

[Explanation of symbols]

 1: Cutting blade 2: Resin sheet 3: Metal tape 4: Ceramic plate

Claims (3)

[Claims] 1. A metal tape cutter having a structure comprising an alloy or ceramics cutting blade and a flat plate arranged parallel to the cutting edge of the cutting blade, the cutting blade being pushed down in a state of being parallel to the flat plate. vessel. 2. The metal tape cutting device according to claim 1, wherein the flat plates arranged in parallel to face the cutting blade are made of ceramics. 3. The cutting device according to claim 1 or 2,
A method of cutting the metal tape to be cut with the resin sheet covering the upper and lower tape surfaces.