JPH0736936B2 - Manufacturing method for accessory chains - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a metal chain used for accessories such as necklaces and bracelets.

[Conventional technology]

As an example of such a chain, there is a so-called red bean chain in which elliptical rings 13 are connected. As a method of manufacturing this red bean chain, conventionally, as shown in FIG. In order to hide with, a cut 14 is provided in the connecting direction of each ring 13, and the next ring 13 is sequentially inserted and connected via this cut 14 to form a chain shape, after which the same metal powder as the ring 13 is added. Put the brazing wax on the cut 14 by sprinkling the wax, and then mechanically heat the whole chain at once to melt the brazing wax put on the cut 14 and close the cut 14 of the ring 13, The individual rings 13 were linked vertically to form a chain.

When a plurality of chains are further connected in the lateral direction to form a wide chain, a plurality of the chains obtained as described above are arranged side by side to further join the joints between the rings adjacent in the lateral direction. It was attached and connected.

[Problems to be Solved by the Invention]

For this reason, to make a wide chain that is also connected horizontally,
Brazing work was required at least twice in both the vertical and horizontal directions, the number of work steps was large, and labor and time were required.

Also, especially when making a wide chain using platinum as the material of the chain, the chain connected once in the vertical direction with platinum brazing wax will be re-fired when it is further connected horizontally, In the case of platinum brazing, changes occur due to reheating,
As a result, the resulting chain may be weak in strength.

For this reason, it is difficult to obtain a side-by-side connection using a platinum ring.For example, it is difficult to mechanically make a chain that combines a platinum ring with a ring made of a material different from this, such as gold, and in terms of design. Was also poor.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, particularly when a wide chain is formed by connecting two chains laterally, the number of brazings can be reduced, and a material such as platinum that is easily changed by heat is used. A ring can be easily combined with a ring of gold or the like other than platinum to form various patterns, and a chain with a good design can be easily made, and a chain manufacturing method that is sufficiently reliable in terms of strength is provided. To provide.

[Means for Solving the Problems]

In order to achieve the above object, the present invention forms a chain by sequentially connecting a plurality of rings in the vertical direction with the cuts of the rings oriented in the horizontal direction, and arranging two of the chains in the horizontal direction so that the cuts face each other. Then, these cuts are opposed to each other by brazing the cuts, and the cuts are connected to each other by a braze, so that two chains are connected laterally at the same time by a braze to obtain a wide chain, Also, a number of rings made of different materials such as platinum and gold are arranged in the vertical and horizontal directions as appropriate, and the cuts of the rings are made to face each other in the horizontal direction, and the facing cuts are connected in the horizontal direction. The gist is that they are closed in series by brazing as described above.

[Action]

According to the present invention, an appropriate number of rings made of different materials such as platinum and gold are vertically connected to each other in a horizontal direction to form one chain, and two of the chains are further connected. By arranging in the horizontal direction and brazing the cuts, the cuts can be closed and the chains in the horizontal direction can be connected at the same time, and the brazing can be performed simultaneously in the vertical and horizontal directions by one brazing.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an explanatory view of a manufacturing process showing an embodiment of a method for manufacturing an accessory chain of the present invention. First, an outline of an apparatus used in the chain manufacturing method of the present invention will be described.
Is a nozzle for discharging a metal wire rod such as platinum or gold, 2 is a metal wire rod gripping tool provided facing the nozzle 1, 3 is a wire rod gripper that has already been bent into a ring shape, and is near the end of the nozzle 1. In addition to the cutter 4 provided in the same, the bending claw-shaped bending tools 5a, 5b for bending the discharged metal wire in a ring shape are movably provided below the front of the nozzle 1, and the moving amount of one bending tool 5a is smaller than that of the bending tool 5a. Is set to be larger than other bending tools 5b.

In order to manufacture a so-called red bean chain with such an apparatus, a metal wire material such as gold for a specified length from the tip of the nozzle 1
6a is discharged, the discharge root is cut by the cutter 4, and the tip of the metal wire 6a is held by the gripping tool 2. At this time, the metal wire 6a to be discharged passes through the ring of the ring 7b formed by the metal wire 6b previously discharged and already bent in a ring shape.
7b is positioned in front of the nozzle 1 and held by the grip 3 (see FIG. 1 (a)).

Next, let the bending tools 5a and 5b face both ends of the metal wire 6a (first
As shown in FIG. 7B), when the metal wire rod 6a is moved upward, the metal wire rod 6a is bent in a ring shape to form the ring 7a, and the ring 7b is formed.
Connect to. At this time, since the amount of movement of one of the bending tools 5a is increased, the bending tool 5a largely wraps around upward, and as a result, the break 8a of the ring 7a is positioned laterally with respect to the connecting direction of the rings 7a ( See FIG. 1 (c)).

In this manner, the plurality of rings 7a, 7b ... Are sequentially connected vertically with the cuts 8a ... In the horizontal direction to form a series of chains 9a as shown in FIG.

Then, as shown in FIG. 4, in order to make a wide chain 11 in which a plurality of such chains 9a, 9b ... Are arranged side by side, as shown in FIG. 3, the chains 9a, 9b are connected to the respective rings 7a, 7b. ... break 8
Arrange the chains 9a and 9b in two rows in a horizontal direction so that the a, 8b ... face each other, and put the wax 10 in the cuts 8a, 8a, 8b, 8b. Then, it is heated to melt the brazing wax 10 and thereby the cuts 8a and 8b are closed, and the opposing cuts 8a, 8a, 8b, 8b, ... are closed so that the brazing 10 is connected, and each chain 9a, 9b is closed. At the same time as connecting in the vertical direction, also connect in the horizontal direction with the wax 10.

In order to form a chain 12 in which a pattern such as a striped pattern or a checkered pattern is formed by appropriately combining metals of different materials, for example, platinum and gold, arrange two nozzles 1 for platinum and 1 for gold. Rings 7a, 7b, 7c, 7d, which are provided and are made of, for example, platinum metal wire discharged from one platinum nozzle 1
After connecting 7e, 5 nozzles for gold next to this
Connect the two rings 7f and 7g made of gold metal wire discharged from and repeat this.

Such control is performed using a computer or the like, and a plurality of chains (for example, three) 9a, 9b, 9c in which a prescribed number of such platinum and gold are alternately connected are prepared, and these are arranged in a horizontal gold ring. By shifting the positions of 7f and 7g one by one vertically, a striped pattern as shown in Fig. 5 is obtained. In this state, the cuts 8a, 8b ... When the cuts facing each other at this point are closed by the wax 10 so as to connect horizontally, the rings 7a, 7b ... Can be connected vertically and horizontally at the same time.

In this case, the chain 9c in the third row is connected to the chain 9b in the second row in a separate step.

That is, with respect to the chain 9c in the third row, the cuts of the rings that make up the chain 9c are in contact with the respective rings of the chain 9b in the second row, and a wax is inserted in the breaks to connect with each other with the cut wax, and The chains 9b in the second row are closed so as to be bonded to each ring, and the chains 9c are connected in the vertical direction and also in the horizontal direction with the wax.

And, as the brazing material 10 to be inserted in the cuts 8a, 8b ..., gold brazing is used, and as a joining method, it may be connected in spots only at the cuts 8a, 8b ..., but as shown in FIG. It is also possible to take the braze 10 over the cuts 8a, 8b along the rings 7a, 7b, cut the periphery of the braze 10 after fixing and incorporate this joint into the design.

The striped chain 12 thus obtained is made of different materials because the nozzles 1 and 1 that make the platinum rings 7a to 7e ... and the gold rings 7f and 7g are installed in the same machine. However, it is possible to obtain the same standard ring 7a, and as a result,
Even if the rings 7a ... Of different materials are combined, the eyes do not get out of sight.

Further, since the chains 9a and 9b can be brazed at the same time in the vertical and horizontal directions, there is no possibility that this will change even if platinum brazing which is weak against heating is used.

Other patterns such as checkerboard pattern, turtle shell pattern other than striped pattern are combined in a series of chains. The number of platinum and gold are combined by a chain and the number of them is arranged side by side. Can be formed.

〔The invention's effect〕

As described above, in the method for manufacturing an accessory chain of the present invention, particularly when two or more chains are horizontally connected to form a wide chain, the brazing in the vertical and horizontal directions for connecting the rings is 1 Since the number of brazing operations is reduced, the number of brazing operations can be reduced, and even when using a material that changes easily with heat, such as platinum,
By combining this with a ring such as gold, various patterns are formed and it is possible to easily make a chain excellent in design.

[Brief description of drawings]

FIG. 1 is an explanatory view of a manufacturing process showing an embodiment of a method for manufacturing an accessory chain of the present invention, and FIG. 2 is a front view showing a first stage of a manufacturing process of a chain made by the method of the present invention,
FIG. 3 is a front view showing the second step of the same as above, and FIG.
5 is a front view of a chain in which three chains are formed to form a striped pattern as an application example of the present invention, FIG. 6 is a front view of a main part of the same as above, and FIG. 7 is a conventional example. It is a front view. 1 …… Nozzle, 2,3 …… Grip tool 4 …… Cutter, 5a, 5b …… Bending tool 6a, 6b …… Metal wire rod, 7a, 7b …… Ring 8a, 8b …… Break, 9a, 9b, 9c …… Chain 10 …… Broken, 11,12 …… Chain 13 …… Ring, 14 …… break

Claims (1)

[Claims] 1. A chain is formed by sequentially connecting a plurality of rings in a vertical direction with the cuts of the rings oriented in the horizontal direction, and two of the chains are arranged in the horizontal direction so that the cuts face each other, and the rings face each other. An accessory characterized by closing these cuts by brazing the cuts and connecting the cuts with a braze, so that at the same time, two chains are laterally connected with a braze to obtain a wide chain. Chain manufacturing method.