JPH02228904A - Method and apparatus for setting gem or the like - Google Patents

Abstract

PURPOSE:To improve work efficiency and to obtain products without seattering in quality by implanting a plurality of catches on the base for setting a gem or the like, and after each of them is shaved in the form of a semicircle, by setting the gem by their being pressed and bent by a setting apparatus. CONSTITUTION:A piece 1 for a wristwatch band provides a hole 2 for holding a diamond, and punch holes 7 are punched around the hole and then catches 12 are vertically implanted by the guide of the holes. After that, after a separately provided ring 20 is fitted to the outsides of four pieces of the catches 12 and a round bar-shaped cutter 25 having a diameter nearly equal to the inside diameter of the ring 20 is depressed into the hole of the ring 20, a half part of the diameter of each of the catches 12 is shaved off along the axial direction. After the piece 1 with the catches is fitted into a recess part 32 of a movable die 31, the diamond 60 is set in the hole 2 of the piece 1. When a punch 40 is depressed, first of all the under surface of a presser 46 is in contact with the surface of the diamond 60 and gradually depresses a spring 44 with weak force applied while depressing the diamond 60. When the top end of the catches 12 is in contact with the head end plane of grooves 50 on a recess part 42, the catches 12 are gradually bent inward by depressing the becomes in the state of being bent by depressing on the inclined plane of the diamond 60.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a method and apparatus for fixing jewelry such as diamonds to rings, watch bands, and other jewelry.

b. Conventional technology Traditionally, when fixing jewelry such as diamonds to a ring, etc., the base material on which the gemstone is fixed is cut down with a chisel and a claw is provided, and the circumference of the gemstone is pressed down with this claw. That's how it stuck.

C8 Problems to be Solved by the Invention As mentioned above, the conventional method has the problem of extremely inefficiency and inconsistent quality because the jewelry is attached manually by providing individual nails for the correct attachment. there were.

The present invention has been made in view of the above circumstances, and provides a method and device for fixing jewelry that improves and streamlines the conventional manual method and allows products to be replaced with stable quality. The purpose is to

d. Means for Solving UIB In accordance with the above-mentioned object, the present invention involves planting a plurality of nails on a base for fixing jewelry, and then attaching the nails to the outside of the nails along the axial direction of the nails. A ring with a plurality of grooves on the inner wall into which parts are inserted is fitted, and the parts of the claws that protrude inside the ring are simultaneously cut with a cutter that goes in and out of the inside of the ring to form claws with a reduced cross section. , solves the above problem by pressing and bending the claws at the same time with a fixing device to fix the jewelry on the base, and also provides a lower mold for installing a base with fixing claws, and is compatible with the lower mold. The upper mold includes a recess facing the base on the lower mold, and a plurality of guide grooves that guide and bend the claws of the base on the surface of the recess. The above-mentioned problem has been solved by providing a jewelry fixing device characterized by comprising a slidable presser foot that is biased downward.

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

Figures 1 to 8 explain the procedure and equipment for fixing a diamond to the link of a watch band. That is, in FIG. 1, l is one of a number of links that are arranged in series to form a watch band, and this link 1 is provided with a hole 2 for accommodating a diamond.

Reference numeral 5 denotes a punching tool, which is equipped with four punches 6 at the bottom, and uses the tool to punch holes 7 around the holes 2 on the top surface of the top 1 set on the table.

Next, using the punch hole 7 as a guide, a hole is made to erect a claw (described later).

On the other hand, a stand lO having four holes is provided separately, and a pre-fabricated claw 12 having a circular cross section is erected and held thereon as shown in FIG. 2.The top of the claw 12 is semi-spherical. It is formed.

Next, from above the stand 10 with four claws 12 erected,
The piece 1 provided with four holes is turned over and pushed in with the brace 13 as shown in FIG. FIG. 3 shows a piece 1 with four nails 12 implanted in this manner.

Next, in this state of the piece I, a separately provided ring 20 is fitted onto the outside of the four claws 12, as shown in FIG.

The ring 20 is provided with the same number of grooves 21 having a semicircular cross section on the inner wall at positions corresponding to the four claws 12 of the top l.
The winter melon 12 of frame 1 is inserted into frame 1.

Next, a cutter 25 in the shape of a round bar with a diameter close to the inner diameter of the ring 20 is pushed into the hole of the ring 20, and half of the diameter of the claw 12 is cut off along the axial direction.

When the ring 20 is removed from the top 1, a claw 12 whose cross section is semicircular is obtained from the upper part exposed from the top 1, and the top 1 is placed with this claw 12 arranged around the hole 2. (See Figure 5).

This completes the work of planting the claws to fix the diamond to the top.

Next, I will explain the device and procedure for fixing the diamond to the top.

In Figures 5 to 8, 31 is a lower movable die;
Reference numeral 6 denotes a gouge holder 40 that holds the movable die 31 and is an upper type punch.

The movable die 31 has a T-shaped cross section, has a recess 32 on its upper surface into which the piece 1 with a claw is inserted, and a spring 33 is fitted between it and the lower gouging holder 36. . Further, a guide groove 34 is provided in this movable die 31, and a bottle 37 provided on a gooey holder 36 is inserted into the guide groove 34, so that the movable die 31 can be moved relative to the gooey holder 36 while being guided by this pin 37. be.

The guide holder 36 is fixed to a frame (not shown).

The punch 40 has a recess 42 having an arcuate surface at its tip, through holes 43 and 4 in the upper and lower axial directions, and a spring 44.
a spring receiver 45 that accommodates this spring 44;
The presser foot 46 is provided with a spring 44 and a presser foot 46 inserted through the through hole 43, and the presser foot 46 has its upper end inserted into the hole 4 at the top of the punch.
8, and the presser foot 46 is inserted into the through hole 4.
3, and the position of the lower end of the presser foot 46 can be adjusted to a predetermined position.

The recess 42 extends from the lower end of the recess 42 to the spring receiver 4.
5, there are four grooves 50 having an arcuate cross section, and a recess 4.
2, at a position corresponding to the pawl 12 of the top l (as shown in FIG.
(See perspective view).

Now, as shown in FIG. 5, after fitting the piece 1 with a claw into the recess 32 of the movable die 31, a diamond 60 is set in the hole 2 of the piece.

Next, when the punch 40 is pushed down, the lower surface of the presser foot 46 first comes into contact with the upper surface of the diamond 60, and the spring 44, which has a weak biasing force, gradually bends while pressing the diamond 60.

When the tip of the claw 12 contacts the tip of the groove 50 of the recess 42 in this way, the tip of the claw 12 contacts the tip of the groove 50 of the recess 42.
0 and is gradually pushed and bent inward.

That is, it is guided in the correct direction by the groove 50 and bent. Finally, as shown in FIG. 7, the pawl 12 is pressed against the side slope of the diamond 60 and bent.

When the punch 40 is returned to its original position, a piece 1 is obtained in which the diamond 60 is held and fixed by the four claws 12, as shown in FIG.

e. Effects of the Invention As described above, according to the present invention, when fixing jewelry to a base such as a ring, a watch band, or other jewelry, nails for fixing the jewelry to the base can be efficiently planted. Also, the jewelry can be automatically and correctly fixed to the base.

Therefore, work efficiency is improved and products with consistent quality can be changed.

[Brief explanation of the drawing]

Figures 1 to 8 are explanatory diagrams of embodiments of the jewelry fixing method and device according to the present invention, and Figures 1 to 4 show the case where a jewelry fixing claw is implanted in a watch link. 5 to 8 are explanatory diagrams for fixing jewelry to this piece. l...watch band piece, 20...ring, 25...cutter 40...punch, 46...presser foot, 60...diamond. 12...Claw, 21...Groove, 31...Movable die, 42...Recess, 50...Groove, Figure Figure Figure Figure Figure Figure

Claims (1)

[Claims] 1) After a plurality of nails are planted on a base for fixing jewelry, a plurality of grooves are formed on the outside of these nails into which a portion of the nails are inserted along the axial direction of the nails. A ring provided on the inner wall is fitted, the parts of the claws that protrude inside the ring are simultaneously cut with a cutter that goes in and out of the ring to form claws with a reduced cross section, and the claws are simultaneously pressed by a fixing device. A method for fixing jewelry, which is characterized by fixing the jewelry on the base by bending it. 2) Consisting of a lower mold on which a base with fixing claws is installed, and an upper mold that moves up and down in response to the lower mold, the upper mold has a recess facing the base on the lower mold, A jewelry fixing device comprising a plurality of guide grooves for guiding and bending the nails of the base on the surface of the recess, and a slidable presser foot biased downward. .