JPS6033573B2 - Decorative chains and subsequently processed chains - Google Patents

Description

[Detailed Description of the Invention] [Summary of the Invention] The present invention uses a normal decorative chain as a material, thickens it with electric coins under conditions below the critical current density, and connects each wire. This invention relates to a decorative chain obtained by narrowing the intervals and a subsequently processed chain.

[Field of the Invention] The present invention relates to a decorative chain that has been subjected to a fleshing process using a coin coin, and a chain that has been processed thereafter.

The purpose of the present invention is to uniformly and thickly flesh out the chain silver of the longest chain or the longest chain, and to be able to freely change the degree of fleshing, and to efficiently manufacture a wide variety of chains even in small quantities. The purpose is to process and provide the chain economically, and furthermore, to add post-processing such as compression deformation to provide a decorative chain with a more novel style.

[Description of prior art]

(How to make and types of chains) There are a wide variety of decorative chains used for necklaces, etc., but they can be roughly divided into machine-made and hand-made.

Machine-made refers to chains that are continuously molded and connected from wires or strips using automatic chain-making machines designed and adjusted to suit each chain, while hand-made refers to those in which the component parts are made. Although some machines may be used to create a chain, in principle it is understood to be a chain made by connecting parts one by one by hand. Incidentally, most precious metals are of the latter type, while chains such as the middle ones used for costume jewelry are often of the former type. (Limitations of machine-made chains) Although machine-made chains can be manufactured in large quantities at low cost, their design differs from hand-made ones and naturally comes with certain technical constraints. There is, but
This becomes especially difficult as the chain becomes thinner.

One of the reasons for this is that in order to mechanically perform the chain linking process without any hindrance, a fairly sufficient amount of space is required during the forging process, given the precision currently achievable. (Swetsujisog processing) At present, the only way to semi-purposefully and continuously produce chains with a dense structure that is almost equivalent to a solid rod is to cut the chains made by a mesh machine into grooves with an appropriate cross section. The chain coins are continuously passed through a press mold with a 2-inch press mold to form a strong compression mold, and the chain coins are deformed by pressure from the sides to fill the space along the length of the chain, and interlock with each other to form a rod shape. After softening the material through heat treatment, the material is repeatedly bent by passing it through a number of rollers, creating a slight gap between the interlocking chains.As a result, it is suitable for use in necklaces, etc. In the industry, there is a process known as swedge sog that imparts the necessary minimum flexibility to the chain.

(Relationship between swaging and brazing) This S-hada ging
This method can be applied to a large number of machine-made chains, but if the joints of the chain gun are not brazed, they are often very weak and open easily when bending force is applied. Because they easily break when exposed to heat, it is necessary to braze them particularly firmly beforehand, especially for high-quality or thin items.

The reason why it must be particularly strong is because it will break if it is not strong enough to withstand the intense compression deformation process and the subsequent so-called softening process. However, it is still quite surprising from a technical point of view that this brazing can be carried out automatically and continuously while always ensuring the strength necessary for swaging. The current situation is that a considerable number of defects occur during the process. (Flexibility of swaged chains) Generally, it is desirable for decorative chains to bend flexibly and smoothly, but the flexibility of swaged chains is achieved by the slight gaps between the chain mirrors that are compressed and deformed and interlocked with each other. Since it is an accumulation of limited degrees of freedom, if the structure of the silver chain is the same, the greater the number of chain guns within a unit length, in other words, the smaller the distance between the connecting supports, the greater the number of chain guns. The accumulation is greater, ie the chain becomes more flexible.

Therefore, it is generally desirable to shorten the distance between the connecting fulcrums of chains beforehand as much as possible, but for the reasons mentioned above, there is a limit in the case of machine-made chains, such as thin (wire diameter 1. Below) cable chain or force -
Taking the case of a chain as an example, the minimum wire diameter is about 2.3 degrees. If it is thick, it can be further reduced, but it is clear that theoretically it cannot be reduced to less than 2. Depending on the structure of the chain and how it is crushed, this distance can be increased considerably by swedge processing, but it can be said that it is almost never shortened. (Post-processing and design of machine-made chains) The design and variety of decorative chains are one of the most important factors as a product.

Therefore, machine-made chains can be used in their original mechanically-made form, but they can be subjected to various post-processing processes to further diversify their designs and give them a more refined feel. (It's also mechanical, continuous, and rutting)
administered. In other words, the sides of the chain are shaved off with a diamond cutting tool or a grinder so that flat surfaces with a certain shape are arranged there, or the individual silver chains are continuously fed to create a pattern with a patterned press mold. By attaching, deforming, twisting, and combining these processing methods as appropriate, we create a variety of chains with a more luxurious feel from one original chain. Swaging can also be considered as one of these post-processing processes. However, all of these methods involve scraping or stretching the flesh along the length of the chain, in other words making it lighter and thinner, which not only limits the degree of processing but also requires aggressive processing. As far as machine-made products are concerned, there is currently no way to provide enough meat to add flesh to the material and further transform it. In general, it is desirable for decorative chains to be connected so that each silver chain is freely bent as a unit, and although there may be limits to the directionality and degree of freedom depending on the structure of the chain, at least it is suitable for use in necklaces, etc. It must be flexible enough to bend or move smoothly without causing any problems.

In order to do this, the connection interval should be short compared to the size of the chain key, that is, the interval between the bending fulcrums should be short.In other words, the more connection fulcrums there are within a unit length, the more flexible the chain will be. become.

Although the relatively short connecting distance between the chain keys greatly contributes to the flexibility of the chain, mechanically closing the connecting distance has the following major limitations. Normally, for example, in the case of a cable chain made by connecting simple oval wire coins into a single piece, the cut wires are wrapped around a core rod to create a mirror, or the wires are wound in a spiral and then cut and connected. In the case of , there is also a connecting process, so in the case of Figure 1 a, it is theoretically possible to reduce the connection interval 1 to an inner diameter large enough to accommodate two wires (2d when the wire diameter is d). However, in reality, 1=2. The limit is up to the maternal position, and this 1 = 2. It is technically quite difficult to make each silver wire have the same inner diameter as the motherboard, and it is usually set at 1 = an illusion. [Summary of the Invention] Based on this knowledge, the inventor of the present invention investigated a method of closer connecting the wire keys, and found that by fleshing out the wire coins with electric coins, the scales could be adjusted to meet the intended purpose. I discovered that.

Furthermore, as a result of research and experiments on the method of thickening wire coins using this frost register, the present inventor found that when padding is performed using a box mirror, the connection strength of the wire mirrors increases significantly as the wire enlarges. It has been found that the connecting intervals between the wires are closely spaced to provide a decorative chain with excellent flexibility, which is particularly advantageous when compressing and deforming the scales in a subsequent process.

Furthermore, the weight of the decorative chain in front of the bell is at least 2
If you apply a dragon mirror so that it becomes about twice the size, even if you use a chain that has not been brazed at the joints of each line coin, it will have the same strength as one that has been brazed in advance. ,
It has also been found that when the brazing process is omitted and the material is made of scales and a chain that has been lowered, approximately twice the strength can be obtained. Now illustrating this with Figure 18a, the distance 1, between the interconnection points of the first chain links 1 is usually about 1, (d
, is the initial diameter of the wire forming the first chain link), and as mentioned above, in the mechanical method, 2. mother,
It is not possible to do so.

In other words, 1 becomes 2. Although it is impossible to obtain a chain with a smaller dense structure, after enlarging the same chain to about 5 times the weight per unit length as shown in Figure 18b, 12 (the new distance between the interconnection points) is now smaller than that (where are the average diameters of the new wires),
This results in a chain with a very dense structure compared to the thickness of the wire, which cannot be produced by mechanical methods. This is because the wire diameter of the enlarged link becomes 5d, 22.23mm on average, while the inner diameter of the link becomes shorter due to the deposits Ed. Also, when the chain is pressed or swaged to apply lateral pressure, the distance between the interconnecting points of the chain has a dimension that is increased by the deformation of the links and the interlocking of the links in the longitudinal direction.

In addition, with the press or swege mentioned above, even after flexible processing, not only does the degree of freedom of each chain link decrease,
The flexibility of the chain obtained is also reduced by reducing the number of links per unit length. However, the distance between the interconnecting points of the chain links is shortened to a minimum compared to the thickness thereof, and the interconnecting space in the chain links becomes enlarged from a to b in Fig. 18, so that it is sufficiently packed. As the length increases, the number of links per unit length of the chain increases compared to its thickness, and it also does not stretch in the longitudinal direction, which has an advantageous effect on the flexibility of the resulting chain.

The advantage of the box coin according to the invention is that the build-up is relatively thick on the outer part and relatively thin where it overlaps and is shaded, such as the connecting part, and yet it can be thickened to the required dimensions. It is easy to convert the amount of money, and its accuracy can be strictly controlled by controlling the current of the coin, time, etc.

Also, if you mirror the chain while moving it, the comparatively thick connecting fulcrums will also be overlaid, which will have the effect of reducing the distance between the fulcrums.
In this way, clasping to fill the space between coins has the effect of reducing the space extending in the connecting direction and the degree of deformation, and is also extremely advantageous when applying compression deformation or other processing to the coin. .

When fleshing is done by electric rusting as described above, there is a mirror direction that increases the strength to the inside, but this head direction is noticeable in the process of increasing the weight to twice the weight, and after that, the strength increases. This is a phenomenon in which the temperature slows down and approaches saturation.

The present invention is characterized by making use of this phenomenon to enlarge the joint, and in this case, it has the effect of increasing the strength of the butt joint portion with or without brazing, and also has the advantage that brazing can be omitted. Furthermore, according to the present invention, strengthening of the above-mentioned joints is achieved by making the connection intervals closer together), which also has the effect of reducing the occurrence of damage and defective products during subsequent processing such as compression deformation processing. . As described above, according to the present invention, it is not only effective as a strength supplement for the compression deformation process that is often carried out subsequently, but also allows the production of chains of greater variety and higher decorative value. effective.

In other words, there is naturally a limit to the variety of chains that can be produced by an automatic chain-making machine, but according to the present invention, new and interesting chains can be created by freely increasing the thickness of chains using inexpensive chains that can be produced by automatic machines. It has the advantage of being able to provide a wide variety of services.

For example, the decorative chain of the present invention may be made of a long coin wrapped in a loop shape around a rotating cathode rod that is mounted on the liquid surface of a coin in a coin tank with an anode inside. There is a method in which a chain connected to a length or a long length (hereinafter simply referred to as a long chain) is suspended vertically and submerged in a Kamesen liquid, and this loop is continuously fed to create the desired Raisen flesh. For example, if the purpose is simply to enlarge the body, a Kamekagyo bath containing sulfuric acid steel as the main ingredient is effective, and if the purpose is to give a grainy surface, a cyanide bath (for example, cuprous cyanide 80 tbsp) is effective. / So, free cyanide 7-10 Tanok, Rochelle salt 10 evening / Its rich composition is 60 qo, 1 hour) is effective, and the electric mirror time is usually about 1 to 3 hours.

However, there are no particular restrictions on the conditions for flea mirror bathing, and if the longest chain is made of true steel, red steel, etc., sulfuric acid steel (C
By using uS04 (S04), a high quality electrodeposited layer with good spreadability can be obtained.

No additives are required at that time, such as CuS04290
Evening/So, Sun 2S0490 Evening/In the bath at 30°C and current density of 4A/d, the wall thickness was smooth and smooth to a considerable thickness of 1.2 to 1.
Obtained at an efficiency of 3 evenings/ampere/hour.

The long chains are pre-treated by conventional methods such as degreasing and activation with acids, and post-processes include washing, neutralization, washing, and drying.

Example 1 As shown in FIG. 1a, a brazed wire 1 whose inner diameter 1 is about three times the wire diameter d and an unbrazed cable chain 2 were used as raw materials to make a bag as shown in FIG. I made Kamesen by.

In Fig. 2, numeral 3 is a tank containing a plating solution, 4 is a fixed anode, and 5 is a cathode that also serves as a hook for the chain 2. Kimesen was carried out under the following conditions.

Plating solution composition ratio S0460 Tanok, CuS04290 evening/so temperature 28
0 Current density: 1.5 to 2 A/dm2 As a result, the products shown in FIG. 1 b, c, and d were obtained, and the results are as follows.

In addition, the items in Table 1 are red steel (u-IZn in 8) wire 0.6
Table 2 shows the results when the joint on the 5th side was brazed.

Table 1 Table 2 Note) *If the tensile strength or tensile strength or this relationship is illustrated, it is shown in Figure 3. From this figure, it can be seen that the strength increases significantly up to about twice the weight, and the increase after that is relatively small. .

When using unbrazed material, it has twice the weight and the same strength as brazed material.

When the corrugated material was exposed-cast, the weight was twice as strong and the strength was approximately twice as strong, and the cross-sectional area of the joint stopped increasing when it reached approximately 2 degrees (Fig. 3). The results of the example product using a brazed material are shown by a solid line, and the results of an example product using a non-brazed material are shown by a broken line). Example 2 Below, specific examples in which the sash filling method was applied to various decorative chains, and specific examples in which the chains were further processed will be described.

First, the basic process diagram is shown by the following formula. This shows that it is possible to repeat the process many times.

Furthermore, the definitions of Pm, Cn, Ex, and Ay mentioned above are as follows. Pm = Product decorative chain Cn: Any original chain, including all sardines and handmade chains.

n represents its type.

(For example, C, = standard size oval chain, etc.) Ex=Represents fleshing processing using electric money.

x indicates the degree of fleshiness. (For example, C25 = unit length weight ratio 2. Indicates that it should be fleshed out to make a needle sound, etc.)A
y=indicates all processing methods other than the above-mentioned electroscopic fleshing processing that affect the design and shape of the chain coin, and y indicates the type, degree, combination, and order thereof.

(For example, if A = grinding, A4 = compression, A... = grinding after compression, etc.) Processing methods included in this include press (using rolls, rotary wedging machines, etc.)
Continuously or intermittently compression molded or engraved, patterned,
Deforming or partially cutting, cutting the whole or a part with a stone, cutting the whole or a part with a cutter including a diamond tool and adding a pattern, adding or adhering all or a part of parts by twisting, brazing, caulking, etc. , braiding of multiple chains, connecting parts of different metals, plastics, glass, etc. at regular intervals, etc.

Next, a specific example will be shown.

Example 1 This is the most basic chain that corresponds to Cn → Ex → Pm in the basic process diagram, but the original chain (shown in Figure 1 a) is used, and the product is processed with fly coins. The products shown in b, c, and d of FIG. 1 are examples of products.

Example 2 The basic process diagram is the same as Example 1, but using the double oval chain shown in Figure 4 A and B as the original chain,
The resulting product is shown in Figures 5A and 5B.

Example 3 ＼ It corresponds to Cn→Ex→Ay→Pm in the basic process diagram, and the oval chain shown in Fig. 6 is processed into an enlarged oval chain shown in Fig. 7 by dragon mirror processing as the original chain, This is compressed into a square shape to obtain the products shown in FIGS. 8A and 8B.

Example 4 The product of Example 3 was further subjected to round compression processing to obtain the products shown in FIGS. 9A and 9B.

Example 5 The basic process diagram is the same as Example 3, but in this example, Fig. 10A
The varicoso chain shown in ,B is used as an original chain, and it is subjected to post-coating processing to form the enlarged varicone chain shown in Fig. 11A and B, and then the corners are compressed to form the chain shown in Fig. 12A and B. Get the product shown.

Example 6 The product of Example 5 (shown in FIGS. 12A and B) was subjected to diamond cutting to obtain the product shown in FIGS. 13A and B.

Example 7 The basic process diagram corresponds to Cn→Ay→Ex→Ay→Pm, and is shown in Fig. 14A. The S-curve chain shown in B is compressed into a rectangular shape to obtain the deformed chain shown in FIGS. 15A, B, and C, and then subjected to box mirror processing to obtain the products shown in FIGS. 16A, 8, and C.

Example 8 The product of Example 7 (shown in FIGS. 16A, B, and C) is compressed into a round shape to obtain the product shown in FIGS. 17A, B, and C.

[Brief explanation of drawings]

Figures 1a, b, c, and d are front and side views of the simplest form of decorative chain material, usually called a cable chain, and the enlarged state of the decorative chain at different magnifications; Second
The figure is an explanatory diagram of the money device, and FIG. 3 is a chart showing the relationship between enlargement and strength according to the present invention. Figures 4 to 17 are explanatory diagrams of decorative chains and post-processed chains showing example products of the present invention, and Figures 18a and 18b are partial views of the chains before and after enlargement, which are the principles of the present invention. FIG. 1... wire coins, 2... chain material, 3...
...Cash tank, 4...Anode, 6...Cathode. Crocodile Figure 2 Figure 3 Figure 6 Figure 7 Figure 4 Figure 5 Figure 8 Figure 9 Figure 1 Figure l7Figure l8

Claims (1)

[Scope of Claims] 1. A dense structure in which a decorative chain is used as a material and is enlarged by electroforming under conditions below the critical current density, and the connecting interval of each wire link is made smaller than its thickness. A decorative chain characterized by being a chain of. 2. The decorative chain according to claim 1, wherein the decorative chain material, in which the joints of the wire links are brazed, is overlaid by electroforming to increase its strength. 3 Claims characterized in that the joint portion of each wire link is made of non-brazed decorative chain material and is overlaid by electroforming to have a strength comparable to that of a brazed decorative chain. The decorative chain according to item 1 or 2. 4. In each of the wire links that make up the chain, the overlapping connecting parts are relatively thin, the unconnected parts have relatively thick flesh, and the connecting intervals of each wire link are small compared to the thickness of the chain. A decorative chain according to any one of claims 1 to 3, characterized in that it has a structure. 5. Using a decorative chain as a material, it is overlaid by electroforming under conditions below the critical current density to enlarge it, and the chain has a dense structure in which the connection interval of each wire link is made smaller than its thickness, and then press, A post-processed chain characterized by being subjected to swaging or other post-processing either singly or in combination.