JPS6161707A - Method of severing coil material - Google Patents

Abstract

PURPOSE:To reduce the number of times of preparation to aim at enhancing the efficiency of severance, by forming a punched hole at a predetermined position in a wide coil member so that a plurality of sketch materials are cut off, simultaneously, by use of severing means passing through these holes. CONSTITUTION:A punched hole 11 is formed in a wide coil material 1. Then, the coil material 1 is fed in the direction of the arrow to form a cut 12 extending widthwise and a cut 13 extending longitudinally. Simultaneously, the next puched hole 11 is formed in the next succeeding coil material 1. At this time the puched hole 11 is formed at the crossing point of the cut 12 and the cut 13. With this arrangement, sketch materials may be obtained by a T-like pattern cut, simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a method for cutting and collecting sketch material used for press parts etc. from coil material.

b. Prior Art Conventionally, sketching materials used for drawing parts of motorcycles, etc., are made from coil materials, especially for small parts, for example, about 500 ml.
When collecting sketch material with a size of 500 x 1.211 or less, a wide standard length coil material is cut (slit) in the length direction in a separate process (for example, at an outsourced factory) to create a narrow coil. After making the material, cut it to the specified size (
(cutting) to obtain a sketch material with predetermined dimensions.

Therefore, there were problems in that the lead time from obtaining the first coil material to obtaining a predetermined sketch material was long, and the number of machining operations and machining setups increased, increasing costs.

C9 Problems to be Solved by the Invention The present invention has been made in view of the above-mentioned circumstances, and it solves the problems of the prior art and makes it possible to extract a plurality of sketch materials of predetermined dimensions from a wide coil material at once. The aim is to provide a method to do so.

Means for Solving Problem d1 Namely, the present invention provides a cutting line along the width direction of the coil material and a cutting line along the longitudinal direction when a plurality of sketch materials are cut and sampled from the coil material in the width direction. A coil material cutting method characterized in that a plurality of sketch materials are simultaneously cut by cutting means formed along each of these cutting lines after punching holes of a predetermined size are made at intersections with the coil material. be.゛Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 2, the method of the present invention uses a wide coil material 1 directly, and attempts to obtain a plurality of sketch materials 3.3 at once by making T-shaped cuts 2 from the coil material 1. It is something to do.

In order to simultaneously obtain the specified sketch materials 3, 3 through this T-shaped cut 2, it is possible to use a T-shaped cutting blade, but such a cutting blade has a An intersection is formed between the blade and the longitudinal blade, and in reality, it is extremely difficult to perform the above-mentioned cutting operation with such a cutting blade.

Therefore, the inventor overcame this difficulty by the following method. That is, in FIG. 1, tag, (bl indicates each process in the order of processing. First, in the (al process, a punch hole 11 is punched in the wide coil material 1. Next, this coil with the punch hole 11 punched is Feed material 1 in the direction of the arrow, (
In the bl process, cuts 12 extending in the width direction and cuts 13 extending in the length direction are made simultaneously.

At the same time, the next punch hole 11 is punched on the subsequent coil material 1. Here, the punch hole 11 is formed at the intersection of the notch 12 and the notch 13, as is clear from the figure.

By doing the above, the sketch materials 3.3 can be taken out at the same time through the T-shaped cuts as described above. Here, the T-shaped cut is formed by a straight blade for cut 12 and a straight blade for cut 13, but it is a combination of these straight blades or a T-shaped cut (T-shaped cut type), The cutting edge may not be formed at the intersection of the blades, or may be omitted.

Further, the punch hole 11 is configured so that its position can be moved in the longitudinal direction depending on the size of the sketch material to be sampled. Note that it is also possible to provide a punching die capable of punching two or more holes in the width direction of the coil material so that three or more sketch materials can be sampled at the same time.

In addition, after cutting off the sketch material, an arc-shaped notch will be provided at the center end of the coil material in the subsequent process or at the corner of the cut sketch material. For this reason, there is no problem at all when it is located in the cut-off portion remaining around the product after drawing, for example.

e0 Effects of the Invention As described above, according to the present invention, when collecting a plurality of sketch materials for small parts from a coil material in the width direction, the cutting line along the width direction of the coil material and the longitudinal direction After punching holes of a predetermined size are made at the intersections with the cutting lines along these lines, multiple sketch materials can be cut at the same time using cutting means formed along each of these cutting lines. , After cutting the coil material in the length direction (slitting) in a separate process to create a narrow coil material, as in the past,
There is no need to perform the troublesome work of cutting in the width direction to obtain a predetermined sketch material.

Therefore, the lead time from obtaining the coil material to obtaining the sketch material is shortened, and processing efficiency is significantly improved.

For example, in the case where two pieces of sketch material are taken at the same time using the method of the present invention, even if we take only the process of cutting the sketch material, the efficiency is twice as high as that of the conventional method, and the number of setups is only two.

Furthermore, when slitting is conventionally carried out at an outsourced factory, both ends of the coil material are cut off, but with the method of the present invention, the cutting process can be carried out with the slits left as long as there is no problem. material can be used effectively.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams of the procedure for cutting coil material by the method according to the present invention. 1... Coil material, 2... T-shaped notch, 3... Sketch material, 11... Punch hole.

Claims (1)

[Claims] When cutting multiple pieces of sketch material from coil material in the width direction, punch holes of a predetermined size are made at the intersection of the cutting line along the width direction of the coil material and the cutting line along the longitudinal direction. Thereafter, a plurality of sketch materials are simultaneously cut by cutting means formed along each of these cutting lines.