SU1148684A1 - Method of manufacturing hinges - Google Patents

Abstract

THE METHOD OF MANUFACTURING LATERS from a strip, predominantly two-dimensional, consisting of two leaflets connected by a main and additional rod LG / J t 25 26, by performing in a combined -. In the stamp of punching holes, a stepped longitudinal notch with the formation of sections of two flaps subjected to curling, and hemming of the ends of the latter, as well as the assembly of two flaps and sections, so that, in order to improve the quality of the loops , the operation of the segments made before the assembly of the two wings,. during assembly, the main rod between the flaps is fed and the final curl of one of the flaps is performed around the main rod and the preliminary curl of the other flap is installed, and then an additional rod is installed into the other flap and compressed (L assembled loop. a 2J 27 f6 78 20 Jf 00 sp eo 4 fug.

Description

I The invention relates to the treatment of pressure gals, mainly to the manufacture of loops of sheet material. There is a known method of making hinges, in which the pre-bent ends of the valves turn one into the other at a predetermined angle and the axis is inserted into the formed hinge O, Manufacturing door hinges in this way is associated with great laboriousness and low productivity. The closest solution to the proposed technical essence and the achieved effect is a method of making loops from a strip by performing in the combined punch punching of holes and a stepped longitudinal notch with the formation of sections of two flaps subjected to curling and bending of the ends of the latter as well as assembling of the two flaps and sections z J. The known method is intended mainly for the manufacture of rotary hinges, the flaps of which are curled around the wire, and in the manufacture of hinges in which the curtains are t round rod with a releasable head, the wire should be vtressovana and in its place installed with interference rod, which deteriorates the quality of the loops. The purpose of the invention is to improve the quality of the loops. The goal is achieved in that according to the method of making loops from a strip, mainly door, the STATE of two cusps connected by main and additional rods, by punching a hole in the combined punch, a step longitudinal incision is made to form sections of two cusps subjected curling, and hemming of the ends of the latter, as well as the assembly of two flaps and lengths, the operation is cut before the two flaps are assembled, when assembling, the main rod is inserted between the flaps and carried out nchatelnuyu perm one of the flaps around the main shaft and the provisional perm other flaps, and after an additional mouth navlivayut rod 84 in the other flap and crimped loop collected. Fig. 1 shows a combined stamp of a sequential-combined action, in which a part of the techniques of the method is carried out; in Fig.2, section A-A in Fig.1; on fig.Z section bb in fig. 2; in FIG. 4, section B-B in FIG. 2; in fig. 5 is a cross section of the FIG. 2; in fig. 6 loops after curling in the stamp (the sequence of transitions to simultaneously obtain two hinges is shown); in fig. 7 - loop, obtained by the proposed method; in fig. 8 - punching of four holes and a groove, as well as cutting of the lintel; in fig. 9 and 10 - punching four more holes and a step cut and bending of the ends of the valves; 11 and 12 - flexible ends of the valves; in fig. 13 - a section of the valves along the section a-a and waving them on the main rod. The combined successive stamped stamp, on which the method of obtaining loops is implemented, contains the bottom plate 1, on which the matrix -2 is placed for punching holes, cutting and bending the ends of the flaps, first half of the semi-matrix 3 and A, base plates 5-7, guiding a plate 8, a guide bar 9, a spring 10 for a pusher 11, a spring 12 for a diverter 13, a cassette 14 for main rods 15. The stamp also has an upper plate 16 mounted on it a backing plate 17, a punch holder 18, punch punches 19 and 2 ( T notch poo 21, an up-scissors 22, a flexible punch 23, a cutting punch 24 for cuts 25 and 26, a punch 27 for curling, a wedge 28 30, a pressing 31 and a safety device 32. The method is carried out in a stamp and rests on the stop-scissors 22. In the first transition, a jumper of the stop-scissors 22 is cut and the hole is punched through the chuck with punch 19 and the groove with punch 20. In the second transition four holes are punched with punch 19, punch 21 cuts shutters 25 and 26 and bends back.

311

in the third junction, the ends of the flaps 25 and 26 are flexed by the punch 23, the position of the strip is fixed by catchers 32. In the fourth junction, the resetter 13 is lowered with wedges 29 and 30, the flaps 25 and 26 are cut off from the strip by the punch 24, and the flaps receive a vertical the position with the help of the pin of the bar 9, at the same time the wedge 28 horizontally moves the pushers 11 and the main rod 15. into the gap between the doors. The flaps of the hinge are pressed against each other by scrolling at mattresses 3 and 4, with movable wedges 28 and 29, and the punch 27 perms the ends of the flaps 25 and 26 on the main

8684 4

the rod 15 with the formation of the lead-in (conical) section on the sash 26 for the additional rod (heel) 33.

5 At the upper position of the punch, the loop is removed from the punching zone with the ejector 13. After that, an additional rod (the weft) is inserted into the loop on the side of the conical section

10 33 and finally compressed the assembled loop with the calibration of it,

The proposed method in comparison with the known allows to increase productivity by 3-4 times per

15, the expense of obtaining both hinge flaps simultaneously in one stamp and to increase the coefficient of use of the metal by 1.5 times.

/ CP / 4 4 -H 3 5 J2 FIG. 2 22 79 I I

15

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Lfig. eight

h /

U (J

-f-- -f - f - f-- A ...- - f / XZ / Y

FIG. 9

dd FIG. 10 FIG. 71

FIG. L7 Fig. / 2

Claims (1)

METHOD FOR MANUFACTURING HINGES from a strip, mainly door, consisting of two leaves, connected by the main and additional rods, by performing in combined. punching holes, a stepped longitudinal notch with the formation of sections of the two flaps subjected to curling, and bending the ends of the latter, as well as the assembly of two flaps and pieces, which is different in that, in order to improve the quality of the hinges, the cutting operation is performed before assembling two sash. during assembly, the main core is fed between the cusps and the final curling of one of the cusps around the main casing and the preliminary curling of the other cusp is carried out, and then the additional casing is installed in the other cusp and the assembled loop is crimped. Φίη-ΐ SU .1148684 ί 1148684 2