JPH0751090B2 - Manufacturing method of jewelry with jewelry - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for manufacturing an accessory, such as an accessory, in which a plurality of small jewels, precious stones, and other jewels are mounted side by side.

[Prior Art] Generally, in order to manufacture an accessory in which a large number of small jewelry are mounted side by side on a table made of precious metal such as gold, an accurate dimensional accuracy of, for example, about 0.01 mm is required. A numerically controlled machine tool was used to manufacture. Then, a plurality of claw portions are formed by cutting the periphery of the portion to which the jewel is to be attached with such a machine tool, and the jewel is set in this portion, and then these claw portions are deformed to fix the jewel.

In the prior art, these claws are formed such that the diameter of the roots thereof is reduced, and after the gems have been inserted, the claws are deformed by a tool to fix the gems.

In the past, these jewels were attached by hand, and it required skill to deform these claws so as not to break the jewels or precious stones.

Further, since the method of manually attaching jewelry as described above has a low work efficiency and a high cost, a device for automatically performing such work has been developed. In such an apparatus, when the surface of the table made of precious metal or the like is flat, a flat plate-shaped pressing tool is attached to this apparatus, which is vertically pressed against the surface of the table of this accessory, and a large number of nails are used. The parts are pressed simultaneously to fix a plurality of jewelry pieces at the same time.

When the surface of the accessory is curved, a plurality of pressing tools are attached to the device, and these pressing tools are pressed in the direction perpendicular to the surface of the base to simultaneously deform many claws. Is configured.

By the way, small gems used for such ornaments are sorted according to their size by mesh etc., and the diameters of these gems are aligned with an accuracy of about 0.02 mm. It can only be aligned with a much lower precision.

For this reason, when these jewels are mounted on a table, the height of the jewels varies considerably. There was a case where the kind was broken. For this reason, it is difficult to simultaneously deform a large number of nails by a machine when manufacturing an accessory in which a plurality of such small jewelry pieces are arranged and attached.

[Problems to be Solved by the Invention] The present invention has been made based on the above circumstances, and there is a danger that jewelry may break in a decorative tool in which a large number of small jewelry are arranged side by side on a stand made of precious metal or the like. It is intended to provide a method for manufacturing an accessory in which a large number of claw portions can be simultaneously deformed without using them, and these jewelry pieces can be aligned and attached on the same surface.

[Means for Solving Problems and Actions Thereof] The method of the present invention is such that a plurality of accommodating portions for accommodating jewelry are formed on the base of the accessory and the jewelry is placed in the accommodating portions. A possible thin seat portion is formed, and a plurality of claw portions are formed around these accommodating portions. Then, jewels are inserted into the respective accommodating portions, and then the upper surface of the pedestal in which the jewels are inserted is pressed by a tool to deform many claw portions at the same time. The tool therefore presses against a large number of jewels, in which case the thin-walled seat described above is easily deformed and the jewels are pushed into this housing, with the tops of these gems flush with each other, The rear claws are pressed and deformed to fix these jewels. Therefore, an excessive load is not applied only to a tall gemstone, the gemstone is prevented from cracking, and the upper surfaces of many gemstones are aligned on the same plane, so that the appearance is improved.

Further, according to the embodiment of the present invention, the first groove is formed above the annular seat portion to facilitate the deformation of the seat portion.

Further, according to the embodiment of the present invention, the second groove is also formed below the seat portion, which makes it easier to deform the seat portion.

According to the present invention, not only can such an accessory be automatically manufactured by a numerically controlled machine tool or the like, but also jewelry having different heights can be attached at the same time.

Further, according to the method of the present invention, it is possible to surely prevent the jewel from cracking when the jewel is automatically attached.

Further, according to the present invention, even jewels having different heights can be attached by aligning these surfaces on the same plane,
The appearance is improved and the decorative effect is improved.

Also, the method of the present invention allows such accessories to be automatically manufactured by a machine without resorting to manual labor and without the risk of breaking jewelry.

If the surface of the table of this accessory is flat, a flat pressing tool is used, and this tool is pressed toward the surface of the table, first abutting on the upper surface of the gemstone, and then the gemstone Even if the jewels are different in height, the surfaces of these jewels are aligned on the same plane, after which the tool abuts the claws and simultaneously deforms a number of these claws to make them Are fixed at the same time.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the base 1 of the accessory of the present invention before the jewelry is attached,
The first is made of a noble metal. And this stand 1
A plurality of circular accommodating portions 2 are formed in a predetermined arrangement.

A conical seating portion 3 is formed in each of the accommodating portions 2 so that a small jewel such as a brilliant cut diamond or a precious stone can be received on the seating portion 3. These gems have been screened through multiple layers of mesh, which have mesh sizes of, for example, 0.05 or 0.02 mm for adjacent meshes.
The gemstones are made smaller and the gemstones are accurately sorted according to their diameter grade. The diameter of the opening 4 above the conical seating portion 3 of the accommodating portion is formed to have a size corresponding to the diameter of the gemstones whose diameters are accurately aligned as described above. It is configured to be fitted without.

The planned seating portion 3, the opening 4 and the like of the accommodating portion 2 are accurately machined by a numerically controlled machine tool.

Then, after the above-mentioned accommodating portions 2 are formed, the surface portion of the base 1 between the accommodating portions 2 is cut by a milling tool or the like attached to the numerically controlled machine tool to surround the accommodating portions 2. A plurality of, for example, six claw portions 10 are formed on each.

Further, a reduced diameter portion 15 is formed at the tip of these claw portions 10,
Crushable heads 14 are formed at the tips of these claws 10, respectively. Then, the heads 14 of the claw portions 10 are crushed and deformed to fix the jewels set in the opening 4 of the accommodating portion.

Conventionally, in order to deform the claw without breaking the jewel, the pressure applied to the tool that deforms the claw must be finely adjusted, and it depends on the manual work of a skilled worker. .

The present invention is capable of automatically performing a work for fixing a jewel by deforming such a claw portion by a machine,
For example, even an accessory in which 60 gems per square cm are mounted side by side can be efficiently manufactured by a machine at low cost and with high accuracy. In the conventional manual work, the attachment work of such jewels has to rely on a highly advanced skilled worker, and such skilled worker is very few nowadays. Therefore, mechanization of such a delicate jewel attachment work is extremely effective.

Generally, the height of gems varies widely, and even small gems with the same diameter grade have a variation in height of several tenths.
It can reach up to mm, and it is very effective to be able to automatically attach a jewel with such a large variation in height by a machine.

Conventionally, it has been difficult to control the pressing force applied to each claw with an apparatus that automatically attaches a large number of such small gems, and therefore a claw or a pressing tool is required for a gem with a high height. Due to excessive pressure, this gem could break.

According to the method of the present invention, such conventional problems can be solved, and a large number of small jewels can be automatically attached by a machine without breaking them.

FIG. 2 shows the second step of the method of the present invention, in which the table 1 of the accessory is fixed on the table of the processing apparatus, and the milling tool 5 attached to this processing apparatus has the axis X-X1. It is rotated around the center.

The table 1 fixed on the table is positioned so that the center of the accommodating portion 2 corresponds to the axis X-X1 of the milling tool 5. In FIG. 2, the milling tool 5 is formed with a vertical cutting blade 5a. The cutting blade portion may be tilted slightly downward to the outside.

In addition, the milling tool has a second cutting edge 5b formed thereon, and the second cutting edge 5b is the cutting edge.
It forms an acute angle α with 5a. The distance from the axis X-X1 to the tip of the milling tool is set to be equal to the radius of the opening 4 of the accommodating portion.

The milling tool 5 is not limited to the shape described above and may have another shape.

Then, the milling tool 5 descends while rotating and enters the opening 4, and cuts around the conical seating portion 3 of the accommodating portion to form an annular first groove 6. In the case of this embodiment, the groove 6 has a triangular cross section, and an annular seat portion 3a having a narrow width is formed in the lower portion of the planned seat portion 3. A second groove 7 is formed below the annular seat 3a. Then, these grooves form the ring portion 8 that supports the annular seat portion 3a. The ring portion 8 is integral with the base 1, and a thin web portion 9 is formed at an intermediate portion thereof so that the ring portion 8 is easily deformed inward.

The second groove 7 described above does not necessarily have to be formed. Even if this second groove is not formed, the annular seat portion
When the gemstone placed on 3a is pressed, the ring portion 8 is easily deformed, and the gemstone can be prevented from cracking.

Further, FIG. 3 shows the next step in the direction of the present invention. In this step, the surface portion of the base 1 is cut to a predetermined depth by a milling tool attached to the above-mentioned processing device, and a plurality of, for example, six convex portions are formed around the opening 4 of the accommodating portion 2. And the protrusions form the claw portion 10 for fixing the jewel.

These claws 10 are provided with substantially spherical heads 14 and reduced diameter portions 15 formed at the roots of these heads, and when pressure is applied to these heads 14, these heads collapse. Is configured.

In addition, the apparatus for processing the table 1 to form the claw portion 10 in this way is a French patent application No. 85/0435 filed by the applicant of the present application.
0 is disclosed in detail.

The process shown in FIG. 2 and the process shown in FIG. 3 may be reversed.

Thus, when the steps are reversed, the height of the claw portion 10 can be increased until it reaches the bottom of the groove 6, and the annular seat portion 3a and the ring portion 8 are divided into a plurality of portions. Therefore, they are more likely to be deformed.

Further, FIG. 4 shows the next step. In this step, jewels such as brilliant-cut diamonds or precious stones 11 are inserted into the accommodating portion 2, and these jewels are supported on the annular seat portion 3a. In this case, the heights of these jewels vary as described above.

Then, after the gems are inserted, pressure is applied to the upper surface 13 of the gems 11 and the gems are pushed into the accommodating portion.

FIG. 4 shows a case where the surface of the base 1 of the accessory is flat. In such a case, the flat tool 16 is used, and the lower surface of the flat tool is formed into a flat surface,
A plurality of recesses 17 are formed on the lower surface in correspondence with the claws 10, and the flat tool is lowered to simultaneously press a large number of jewels. When this flat plate-shaped tool descends, it first comes into contact with the upper surface 13 of a tall jewel and presses the jewel against the annular seat 3a, which deforms the annular seat. The deformation of the annular seat 3a prevents the jewel from breaking. Then, when the flat tool 16 is further lowered, all the jewels are pushed so as to be arranged on the same plane. Then, the concave portion 17 of the flat plate-shaped tool is brought into contact with the head portions 14 of the claw portions 10, and the head portions are crushed and deformed, and the jewels are fixed by these head portions.

When the surface of the accessory is a curved surface, the part to which these gems are attached is divided into several parts, and the gems are pressed into the accommodating part one by one. In this case, a tool having a curved pressing surface corresponding to the shape of the surface of the table is used, the tool is pressed in a direction perpendicular to the surface of the table, and these jewels are separated from the tip of the claw portion 10 by a predetermined distance. Push in.

Then, as shown in FIG. 5, the tips of the claws 10 are pressed by a pressing tool 12 having a recess 12a at the tips to deform the heads of these claws and fix these jewels. In this case, the table 1 is attached to a table of a numerically controlled machine tool, the table is moved according to a preset program, the claws are positioned so as to correspond to the pressing tool, and the claws are crushed. Then fix the jewel.

Further, when the radius of curvature of the surface of the table is large, a plurality of claw portions can be simultaneously deformed by using a pressing tool having a plurality of concave portions.

When the claw portions 10 are crushed and deformed, even if an excessive load is applied to these jewels, this jewel deforms the annular seat portion 3a and slightly sinks, so this jewel breaks. Is prevented.

Note that FIG. 5 shows a state after the claw portion 10 and the annular seat portion 3a are deformed, and a state before they are deformed is shown by a broken line.

Further, in the above-described embodiment, since the thin annular seat portion 3a is formed, it can be easily deformed when the jewel is attached, and the jewel can be more reliably prevented from cracking.

Further, the diameter of the opening 4 of the accommodation portion 2 may be formed to be slightly smaller than the diameter of the jewel. Further, the planned seating portion 3 in the accommodating portion may be configured to be deformed in the radial direction, and may be configured to be pushed in until the gemstones are aligned on the same surface by being deformed in the radial direction. .

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG.
It is a sectional view showing a processing process. Further, FIG. 2 is a sectional view showing the second processing step, and FIG. 3 is a sectional view showing the third processing step. Further, FIG. 4 is a sectional view showing a state in which the jewel is inserted into the accommodation portion, and FIG. 5 is a sectional view showing the state in which the jewel is fixed. 1 ... stand, 2 ... accommodation part, 3 ... planned seating part, 4 ... opening part, 6 ...
1st groove, 7 ... 2nd groove, 10 ... nail part, 11 ... jewelry.

Claims (8)

[Claims] 1. A method for mechanically manufacturing an accessory in which a plurality of small jewelry pieces are mounted on a metal base, wherein the metal base accommodates the jewelry to be mounted and the inner circumference of the base portion. A step of forming a concave accommodating portion having a planned seating portion for forming the seating portion for receiving the above jewelry, and a thin wall capable of being deformed into a part of the planned seating portion by cutting the aforementioned planned seating portion. The step of forming a seat portion of the container, the step of forming a plurality of deformable claw portions around the accommodation portion, the step of inserting jewelry into the accommodation portion, the jewelry and nail portion A step of pressing with a tool to deform the thin seat portion to sink the jewelry and to deform the head of the claw portion to fix the jewelry. A method for manufacturing an ornamental tool having a. 2. The step of forming the thin seat portion forms a part of the predetermined seat portion into a deformable thin annular seat portion by cutting a part of the predetermined seat portion. The method of manufacturing a jewelry-attached accessory according to claim 1, wherein the accessory is a jewelry item. 3. In the step of cutting the planned seating portion, a part of the planned seating portion is circularly cut to form an annular first groove, and the seating planned portion is formed by the first groove. The method for manufacturing a jewelry-attached accessory according to claim 2, wherein a part of the portion is formed into a thin annular seat portion. 4. The step of cutting the portion to be seated includes the step of cutting an annular second portion on the inner peripheral surface of the portion to be seated together with the first groove.
The method for manufacturing a jewelry-attached accessory according to claim 3, wherein the groove is formed. 5. The method for manufacturing a jewelry-equipped accessory according to claim 4, wherein the second groove has a semicircular cross-sectional shape. 6. The second groove is formed at a position corresponding to the bottom of the first groove, and the portion where the thin seat portion is continuous with the base is thinned by the second groove. Claim 4 characterized in that it is formed on the web portion of
A method for manufacturing an accessory having the jewelry set forth in the paragraph. 7. The surface of the pedestal has a planar shape, a plurality of the accommodating portions are formed, and after the jewelry is inserted into the accommodating portions, respectively, the gemstones and the accommodating portion are surrounded. Press the claws of the claws with a flat tool to deform the thin seat part to sink the jewelry and deform the heads of the claws, and align these gems on the same plane. The method for manufacturing a jewelry-attached accessory according to claim 1, wherein the accessory is fixed. 8. The plate-shaped tool has recesses formed at positions corresponding to the claws, and when the plate-shaped tool is pressed, the recesses form the heads of the claws. The method for manufacturing a jewelry-attached accessory according to claim 7, characterized in that: