SU1176884A1 - Arrangement for securing an insert of jewelry - Google Patents

Description

The invention relates to the jewelry industry, in particular, to devices for fastening inserts of precious, semi-precious and other stones in jewelry. five

The purpose of the invention is to improve the performance properties by improving the reliability of fixation of the insert while improving performance. ^ten

The drawing schematically shows the proposed device.

The device includes a housing 1, in the central part of which a matrix 2 is located to place the jewelry 15, in which the insert 4 'should be placed in the rags.

The body has a T-shaped groove 5.

In the annular T-shaped groove 5 of the housing 1 there are rusks 6. Punches 7 pass through 20 of them, fixed on mobile axes 8, mounted 9 of rushes 6 that can be moved in the vertical grooves of the guide elements, 7 25

have the ability to make swinging movement relative to the axes 8. The punches 7 have clamping surfaces 10, with the help of which the flaps of the jewelry 30 of the product 3 are folded, and the elastic parts 11, intended for deformation during force transfer by the claw. The tail portions of the 12.punches 7 are pressed by means of return springs 13 to the spherical surfaces 14 of the stops 15 for .puns, which are fixed in crackers by means of the threaded parts 16 6. Each return spring 13 fixed on the tail 40 of part 12 is located between a corresponding stop with a spherical surface 14. The device also contains sliders 17 with spherical parts 18. 45

In the upper part of the crackers 6 are located the stops 19, installed with the possibility of movement along the vertical grooves of the guide elements 9. In the lower part of the body 1

using brackets 20, a pneumatic actuator 21 is mounted, consisting of a cylinder 22, a cylinder cover 23, a rod 24 and a return spring 25. Between case 1 and pneumatic actuator 21, a disk 26 is mounted, connected by means of tgg 27 with a ring 28 installed in the annular groove 29 of the housing 1.

In the upper part of the housing 1 'with the help of the bracket 30 is mounted the fixture 31 for pressing the insert, consisting of the housing 32, in which the rod 33 moves, which is simultaneously the core of the electromagnet 34, and the spring 35, tending to lower the rod 33.

The device works as follows.

In the initial position of the device through the electromagnet 34 current flows, and the rod 33 is in the extreme top. position in it, compressing the spring 35.

The disk 26, the ring 28, the slide-17 with the punches 7 are in the lowest position. -After establishing the jewel 3 with the rattles bent upwards and the inserts 4 into the matrix 2 in a known manner, turn off the current of the electromagnet 344 Under the action of the spring 35, the rod 33 firmly presses _{4 the} insert 4 with the product 3 to the matrix 2 and fixes them in the required position. When starting in a known manner compressed air into the working cavity of the pneumatic actuator 21 movement through the disk 26, thrust 27, ring 28, sliders 17 is transmitted by the punch 7.

I

At the initial moment of movement, under the action of the crawlers 17, the punches make rotational and sliding movements relative to the spherical surfaces 14, the stops 15 for the punches ,. while the movable axes 8 slide in the vertical slots of the guide elements 9 of the rusks 6, and the return springs 13, stretching, press the tail portions 12 of the punches 7. At this moment, the pressing surfaces 10 of the punches 7 accelerate relative to the speed of the sliders 17, t. e. for a small stroke of the sliders 17 there is a significant movement of the clamping surfaces 10 (idling). These movements occur until the punches 7 reach the stops 19. At this moment, the clamping surfaces 10 of the punches 7 are in the uppermost position above the level of the claws of jewel 3. Then, as the sliders 17 continue to move upwards, the punches 7 do not have the ability to move along the vertical grooves of the guide elements 9, the tail parts 12 are detached from the stops 15 for the punches, product number 1176884 4

gate springs 13 stretch and the punches 7 make rotational movements relative to the axes 8, all the while resting against the stops 19 until the pressing surfaces 5 10 of the punches 7 press the claws of the jewel 3 of the insert 4, i.e. until the insert is fixed. The last movement of the clamping surfaces 10 (working stroke) occurs at a slower speed than the idling speed. It protects bt. cracking and chipping · when it is fixed, since the pressure surfaces of the 10 punches 7 meet with 15 insert 4 (through claws) at a low speed, without impact.

At the time of folding krapanov elastic part 11 of the punch 7 are deformed, balancing the pressure of the rod 24. At 20

passing the current through the winding of the electromagnet 34 and when connecting the working cavity pnevodvodd_21 with the atmosphere all the driving elements of the device returns to its original position, and the punches 7 make movements in the reverse order, i.e. first, rotational movement of the punches 7 relative to the axes 8 takes place until the tail parts 12 touch the stops for the punches 15 ', after which rotational and sliding movements of the punches 7 relative to the spherical surfaces 14 of the stops 15 for the punches begin.

The use of the invention allows to increase the performance and reliability of the device when securing the jewelry inserts and reduce the consumption of materials of the device.

1176884

Claims (2)

1. DEVICE FOR FIXING INSERTS OF THE JEWELRY PRODUCT, comprising a body with a matrix, sliders, punches installed in breadcrumbs on the body and having return springs attached to the breadcrumbs, pneumatic actuator of punches and a device for pressing the insert, characterized in that, in order to improve performance by increasing the reliability of fixing of the insert while improving performance _g crackers further comprise guide members having grooves in which are arranged plungers axis and abutments for Poinsot s, each return spring 'fixed to the rear part of the corresponding plunger and is disposed between a respective stop for the punch and the slider and each slider is mounted at the rear part of the corresponding punch. 2. Device by. Section 1, on t l ichak \ shchyu so that the grooves of the guide elements are made vertical. S> „„ 1176884 > 1 <176884 2