JPH03212204A - Manufacture of stainless steel metal band - Google Patents

Abstract

PURPOSE: To manufacture a stainless steel band by compressing stainless steel to form a semi-unit piece in the bottom face of which two or more lines of hemispherical recessed vessels are cut, welding two of the semi-unit pieces together to form a unit piece having two pin holes, and connecting the pin holes together using a pin. CONSTITUTION: A unit piece 10 comprises two upper and lower semi-unit pieces 10' and is manufactured using a punch press, with two or more hemispherical recessed vessels 13' formed in the bottom face 12 of each semi-unit piece 10'. The upper and lower semi-unit piece 10' are fixed in a model and welded together at both sides to form the unit piece 10. By connecting the two pin holes 103 in the unit piece 10 together by means of a pin 2, a metal band 11 is obtained. Also, the unit piece 10 is cut to form a notched opening 14 and notched sides 15, between which a projecting part is formed and can be put into the notched opening 14 in the other unit piece 10. Two pin holes 13 are formed in each unit piece 10, and the pin holes are joined together by a pin 2 to obtain the metal band.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present application improves the inconvenience of the conventional method of manufacturing a stainless metal band, which requires drilling holes, and can speed up the manufacturing speed by several tens of times. It provides:

[Prior Art] Conventionally, this type of device is as follows.

In the first case, Fig. 1 is a high-quality band made of stainless steel metal, which feels heavy to wear because the material is thicker, but for example, in the case of a Rolex (trademark) band, the stainless steel rod is attached to a small Cut it into pitches, cut each small pitch again and make a hole to obtain the small pitch unit block A.

A pin C is passed through the pin hole B of this small pitch unit block A, and the pins C are connected to form a metal band.

In the second case, in order to improve the above-mentioned drawbacks, the structure shown in FIG. The small pitch unit blocks At are connected by pins CI to form a metal band.

[Problems to be Solved by the Invention] The conventional techniques described above have the following problems.

In the first case, since such a stainless metal band is made of stainless steel, it takes time to drill holes, and the manufacturing cost is high.

In the second case, such a structure is faster in manufacturing, but has the following drawbacks.

A. Since a bonding agent must be injected for welding between the connecting parts A2 and A3, the bonding agent accidentally flows into the holes of the connecting parts and blocks the holes, resulting in a high failure rate of the product.

B. If the amount of bonding agent is insufficient, the welding point will not be strong and the parts and connected parts will easily come off.

The above two types of stainless steel bands cannot improve the problem of pin hole installation, so the production speed is slow and the price of the product is high.The reason for the high price of these kinds of thick stainless steel bands is This is because the manufacturing time has increased due to inconveniences in the manufacturing method.

The present application was made in view of the problems of the prior art, and its purpose is to provide a system that can do the following.

The present invention provides a method for manufacturing stainless metal bands, which can control the precision of product quality in fast production conditions and reduce production costs.

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows.

That is, the method of the present application compresses stainless steel metal with a punch press to form a semi-unitary block, welds it with solder to form a unitary block, and connects these unitary blocks to produce a metal band.

[Effect] Explain along with the effects.

[Embodiments of the invention] Examples will be described with reference to the drawings.

First, unlike materials such as aluminum, stainless steel cannot be manufactured into a single block using a punch press method, but the present invention is as follows.

The method for producing a stainless metal band consists of compressing stainless metal with a punch press to form a semi-unit block 10゛ having two or more rows of parallel semicircular concave tanks 13° formed on the bottom surface 12, and The half-unit blocks are put together in a model and welded with solder to form a unit block having two pin holes 13, and these unit blocks are connected with the pin holes 13 in the unit block with pins 2 to form a metal block. Configured to get the band.

As shown in FIG. 3, if the top of the unit block 10 has a protruding shape like a mountain, or if a pattern is required, this unit block 10 cannot be manufactured by rolling. In such cases, the present invention is suitable.

That is, this unit block 10 is composed of two upper and lower half-unit blocks lO
The upper and lower half-unit blocks 10° each have a protruding shape or pattern like a mountain on the surface, and the bottom surface 10° has a protruding shape or pattern.
2 also has two or more semicircular concave tanks 13° formed therein. (
(shown in Figures 4 to 7) In the conventional metal band shown in Figure 1, when a stainless steel rod is cut into a single piece of stainless steel and a hole is drilled, the shape shown in Figure 1 is obtained. When drilling holes, it is difficult to drill holes in stainless steel, which increases the working time.At the same time, the diameter of the drill is very small and the depth of the hole is deep (approximately 8 m).
m to 10 mm), the drill may break easily or the hole may become uneven.

This drawback is the biggest difficulty in the current stainless metal band manufacturing method, but if two semi-unit blocks are put together in a model and welded with solder as in the present invention, pin holes will be created naturally. It becomes round and straight, and the welding speed is fast, reaching 1.2 meters per minute, increasing manufacturing speed by several dozen times.

The unit block 10 is formed by combining two semi-unit blocks, and the bottom half-unit block may be a semi-unit block obtained by another method.

That is, as shown in FIGS. 11 and 12, a bar-shaped unfinished product 16 with two semicircular concave tanks 13° formed on the bottom surface 12A is made by applying pressure to a stainless steel metal and spreading it out. It is also possible to obtain a half-unit block located on the bottom side by cutting it to the same length as the half-unit block, and use this.

The upper and lower half-unit blocks 10゛ obtained in this way were placed in a model and fixed, and the well-known laser welding machine [LASAG-Fib
When both sides are welded with er-Optic-3 system (trademark), a unitary block 10 shown in FIG. 3 is obtained.

In this case, the welding marks are still visible, but for aesthetic reasons, the welding marks can be removed by pulling or polishing again.

Therefore, since two pin holes 13 are formed in this unit block 10, by connecting these pin holes with pins 2, the metal band 11 shown in FIG. 8 can be obtained. .

Further, as shown in FIG. 13, the unit block 10 of the present invention is subjected to a cutting process to cut both sides parallel to the pin hole 13.
4 and a top side 15, and the space between the top sides 15 becomes a protruding part that can be placed in the cutout 14 of another unit block 10.

Therefore, since two pin holes 13 are formed in this unit block 10, by connecting these pin holes with pins 2, the metal band shown in FIG. 15 can be obtained.

[Effects of the Invention] Since the present invention is configured as described above, it produces the following two effects.

The present invention uses a welding method to solve the problem of not being able to pull out holes in stainless steel metal, and takes advantage of the ability to roll and press stainless steel materials, and eliminates the process of drilling holes, increasing the manufacturing speed by several tens of times. Since the size of the metal band is twice as large and the precision of the hole is also more accurate, there are many products of this type of metal band.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing the structure of a conventional metal band, Figure 3 is a perspective view of a unit block of the present invention, Figure 4 is a front view of a semi-unit block, and Figure 5 is a side view of the same as above. Fig. 7 Fig. 6 is a front view of the unit block, Fig. 7 is a sectional view taken along line X-X, Fig. 8 is a perspective view of the metal band obtained by the present invention, and Fig. 9 is an enlarged plan view of the main parts of the same. , Fig. 10 is a sectional view taken along the Y-Y line, Fig. 11 is a bottom view of an unfinished product of the stainless steel rod, Fig. 12 is a right side view of the same as above, and Fig. 13 is a plan view of another example of the unit block. , FIG. 14 is a plan view of the connecting pin, FIG. 15 is a plan view of another embodiment of the metal band, and FIG. 16 is a sectional view taken along the Z-Z line. 10,,,Unit block, 10',,,Semi-unit block, 13°11. Semicircular concave tank, 13, pin hole, 290. pin.

Claims (1)

[Claims] Stainless steel was compressed with a punch press to form a semi-unit block with two or more rows of parallel semi-circular concave tanks carved into the bottom surface, and these two semi-unit blocks were made with the semi-circular concave tanks facing each other. Put them together in a model and weld them with solder to form a unit block having two pin holes 13, and connect these unit blocks with the pin holes 13 in the unit block using pins 2 to obtain a metal band. A method for producing a stainless metal band characterized by having the following structure.