JP3091560U - Two or more rings - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention is such that jewelry is attached, or a precious metal or a precious metal alloy is used, each ring is independent, but the adjacent ring and the teeth of the ring engage with each other. It is an object of the present invention to provide a ring having two or more rings having a structure which does not come off and which is manufactured by using a lost wax casting method and provided with a support for preventing the rings from sticking and being cast. First, at the stage of producing a wax model in a lost wax casting method, a model having a support for preventing two or more rings from coming into contact with each other is made. The wax model is then covered with a mixture of refractory granules, binder and water and dried. This is heated to melt and flow the wax model, making a mold with a completely hollow interior. The molten metal is cast while keeping the mold at a high temperature. The problem can be solved by cutting off the support from the finished casting.

Description

[Detailed description of the invention]   [0001]     [Technical field to which the invention belongs]     The present invention was designed with jewelry or precious metals and precious metal alloys only. The present invention relates to a ring having a structure in which two or more rings do not separate from each other. 2 A ring with more than two rings refers to a ring in which a plurality of rings are linked to form a set of rings. In general, the chain is chain-like, but not chain-like as in the present invention. As shown in Fig. 1 which is independent but the adjacent rings and the teeth of the rings do not engage with each other Also includes rings with a simple structure. [0002]     [Prior art]     In recent years, each ring has become independent, but the adjacent ring and the teeth of the ring There is an increasing demand for rings that do not fit. [0003]   The structure of this ring has the shape of a tooth that engages with the side where each ring contacts (FIG. 1). . It is easy to understand if you think as follows. Consider separating a long thin metal plate. Money The genus plate is separated by providing teeth that engage with each other. Then pull your teeth to the base of each other's teeth With the reentrant shape, the teeth will be displaced in the normal direction of the surface of the gap between the teeth. Do not separate. However, if it is shifted in parallel to the plane of the gap, it is completely separated. this When bending a metal plate and bonding the edges of the metal plate to form a ring, the surface of the gap is It is in contact with the extension of radiation from the center, and does not separate even if each ring is shifted parallel to the gap . Of course, they do not separate from each other even if they are shifted vertically to the gap. [0004]   Staying separate means you can't fit separately manufactured rings into each other That's what it means. [0005]   Therefore, as for this ring, as described above, the metal plate is bent and It cannot be made unless one ring is cut. [0006]   However, the ring that is formed by bending and bonding the ends is not beautiful Does not hold. Because, first of all, when bending Although it is good, distortion always occurs. Strain can cause wrinkles to appear on the metal surface, Causes the genus to crack. Furthermore, after bonding appears at the bonding location. that is, It appears as a rip or a difference in metal color. Distortion and tears When it appears, it looks unsightly. The ring of the present invention is an accessory, so it looks natural Beauty is required. For this reason, it is bent and glued end to end. The raised ring is not beautiful and cannot be formed as a ring. [0007]   A ring made by cutting one ring has a cutter on the side of the ring, It is possible to manufacture by cutting and cutting to trace the tooth shape while rotating. You. The ring made in this way is beautiful and jewelry ring without distortion and cracks Holds. [0008]   Conventionally, such a ring is manufactured by a multi-axis control machining center or NC fly. The board was used. [0009]     [Problems to be solved by the invention]     However, the above-mentioned conventional ring has a disadvantage that the cost is high. . The reason is that machining centers and NC milling machines are not Since only one tool can be used to cut at a time, This is because the amount produced in a unit time by the center is limited. Naturally, the production is small. [0010]   If mass production is to be carried out, multiple machining centers must be installed. No. Machining centers are expensive machines and require significant capital investment . Therefore, the cost increases. [0011]     [Means for Solving the Problems]     In view of the above, the present invention uses the lost wax casting method so that the two rings It was manufactured with a support to prevent casting A ring is provided. [0012]   In order to provide an inexpensive ring, the mass production method called lost wax casting method There is a law. [0013]   Here, the lost wax casting method is the first method of casting an article to be cast. A model in which a model is made of wax, and a runner through which molten metal flows is connected to the wax model. Make a model called Xtree. The wax tree model and the refractory particles Cover with a mixture of binder and water and dry it. Next, heat this and wrap it The melted model is melted and made into a mold with a completely hollow interior. Put this mold in high temperature This is a method in which the molten metal is cast while maintaining the condition. [0014]   The lost wax casting method is cheaper in equipment than a machining center. Also, install a lot of wax models that will become goods during the wax tree production stage This enables mass production. [0015]   The two or more rings provided in the present invention are manufactured as follows. [0016]   At the stage of waxing, as shown in Fig. 2, two or more rings do not touch each other. Make a model with a mark. Because the ring of the present invention has two or more The gap is no more than the gap below the door, and if this gap is connected, Does not become a ring. Without support, the teeth of the two rings will touch when making hollow plaster. The cavities are connected by touching, and the casting is cast where the molten metal is connected. When they are completed, they become one and do not become a ring of two or more. [0017]   This support is the runner through which the melt flows. [0018]   Cut off the support after the casting is completed.   [0019]   In this way, the rings are adjacent to each other, but the adjacent rings and the teeth of the rings are It is possible to provide a ring having a structure as shown in FIG. [0020]     【Example】     Next, examples in which the present invention is applied to a ring will be described, but the present invention is not limited to these. Not. [0021]   The ring shown in this example is a triple ring composed of three rings and configured as shown in FIG. This ring consists of three independent rings, but the rings next to each other and the teeth of the ring It has a structure that does not come off. [0022]   First, a model of the article to be cast is made with wax. In this embodiment, three axes It is manufactured by cutting and manufacturing one ring using an engraving machine (FIG. 2). Book In the embodiment, an end mill (tool diameter 1 mm) is used as a cutting tool in a three-axis engraving machine. The following is desirable). 2 represents an end mill, and FIG. Medium 3 Trace the wax ring model with uncut teeth in the shape of the teeth. It shows the state of cutting. 3-axis engraving machine can cut noble metal and noble metal alloy No, but soft materials like wax can be cut. Furthermore, three axes Engravers are much cheaper than multi-axis machining centers and NC milling machines. [0023]   Next, at the stage of waxing, a support is made to prevent the three rings from contacting each other (Fig. 3 ). In FIG. 3, reference numeral 4 denotes a wax model of a ring whose teeth have been cut, and reference numeral 5 denotes a support. Represents This support is also made of wax. The wax melts the wax at the point of adhesion After bonding, it can be easily bonded by solidifying. This support Shape is a problem if it can be fixed so that the configured rings do not touch each other Do not. In the present embodiment, three or three rings are fixed by square bars. Support. This support is a runner through which molten metal flows during pouring described below. You. [0024]   The finished wax model 6 of Fig. 3 is cast according to the lost wax casting method. I do. In other words, a wax tree connecting the runner 7 through which the molten metal passes to the wax model (Fig. 4). In FIG. 4, 8 is a refractory particle and a binder described below. And a mixture of water and water. 9 In this embodiment, the material is paper. [0025]   The wax tree is covered with a mixture 9 of a mixture of refractory granules, binder and water. Dry it. FIG. 5 is a schematic diagram of the structure created in this step, and the cross-section thereof is schematically illustrated. It is a thing. In the figure, reference numeral 10 denotes a mixture of refractory particles, binder, and water. First, it is a cross section of a container which is in a liquid state and is prevented from flowing out. Add this Heat and melt the wax model and mix it with refractory particles, binder and water The object 9 is hardened at a high temperature to produce a mold 11 having a completely hollow interior. FIG. 6 shows this This is a schematic drawing of a cross section of a template created in the process. This mold While maintaining the temperature of 11 high, the molten metal was poured, and the mold was removed. Get such a casting. [0026]   The support 5 and the runner 7 are cut off from the finished casting 12 as shown in FIG. If so, the ring is completed. 1 in FIG. 1 is the completed ring. [0027]   In the lost wax casting method, as shown in FIG. Mass production by installing a lot of wax models that become goods during the production stage Becomes possible. Also, the wax models installed as shown in FIG. You don't have to. [0028]   In this way, three independent rings are formed. It is possible to provide a ring having a structure in which the teeth mesh with each other and do not come off.   [0029]     [Effect of the invention]     In the present invention, as described above, each ring is independent, but the ring and the ring In two or more rings with a structure in which the teeth of the Using the cast method to prevent the rings from sticking together and being cast By providing the support, it is possible to manufacture without attaching the rings to each other. [0030]   In addition, the manufacturing method of the present invention uses a conventional machining center or the like. Unlike expensive manufacturing methods, it does not require expensive machines and has the effect of reducing manufacturing costs. . [0031]   Furthermore, the present invention uses a lost wax casting method to produce a wax tree. Mass production by installing a large number of wax models It is possible to further reduce the manufacturing cost.  

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is composed of three independent rings, but adjacent rings and three rings having a structure in which the teeth of the rings do not engage with each other. Fig. 3 shows a wax model of a triple ring with a support bonded to prevent the three rings from coming into contact. [Fig. 4] A runner through which the molten metal passes through the wax model. [Figure 5] A wax tree covered with a mixture of refractory particles, a binder, and water, and dried to create a schematic representation of the cross section of the wax tree [Figure] 6: Schematic representation of the cross section of the mold [Figure 7] The molten metal is poured while keeping the mold at a high temperature.
Cast product obtained by removing the mold [Fig. 8] Diagram showing cuts of supports and runners from the finished cast product [Fig. 9] Wax tree with many wax models installed [Explanation of symbols] 13 , But the ring of the adjacent ring and the teeth of the ring are not engaged with each other. 3 rings 2 End mill 3 Wax ring model with uncut teeth 4 Wax of the ring with cut teeth Model 5 Support 6 Wax model with support 7 Runner 8 Runner 8 A bottom portion of a container that prevents a mixture (liquid) of refractory particles, binder and water from flowing out 9 Refractory particles and sticky A mixture (liquid) of a mixture of binder and water 10 A container 11 for preventing a mixture (liquid) of a mixture of refractory particles, binder and water from flowing out 11 A mold 12 A casting 13 A lot of wax models were installed. Mass production Because of the wax tree

Claims (1)

[Claims for utility model registration] Claims 1. A jewelry is attached, or a ring made of a noble metal or a noble metal alloy is used. Each ring is independent, but the adjacent ring and the teeth of the ring mesh with each other. A ring manufactured by using a lost wax casting method and providing a support for preventing the two rings from sticking to each other and being cast by using a lost wax casting method.