RU25290U1 - DEVICE FOR MANUFACTURE OF MULTI-WIRED SPRING SPRINGS - Google Patents

Abstract

A device for winding multi-core springs, including a mandrel for winding a spring, rotation mechanisms of the mandrel and the spool and a mechanism for moving the spool along the mandrel, moved along the mandrel of the sleeve (eye) for twisting the cable and the rotating spool with coils containing a clip located in the housing, carrying a spring-loaded coil with a supply of wire and a drive gear equipped with a sleeve and a flange coaxially mounted with a ferrule and rigidly connected to it, having slotted grooves made on its outer surface, and the gear is equipped with a cm mounted inside it parallel to one another, friction disks entering the grooves of the sleeve, characterized in that the gears of the coils interact with the central gear located on the same axis as the spool and driven from the outside.

Description

Object - device

Authors: Zemlyanushnova Nadezhda Yuryevna Tebenko Yuri Mikhailovich

IPC7 B21F35 / 00V 21C 47/18 V 21F23 / 00

Device for manufacturing stranded coil springs

The present invention relates to the field of manufacturing stranded coil springs in mechanical engineering and in other fields of technology.

From book 2, “Machine Parts, edited by Dr. Tech. Sciences Professor N.S. Acerkana (State Scientific and Technical Publishing House of Engineering and Shipbuilding Literature, Moscow, 1953, p. 238) it is known that the manufacturing process of multi-core springs is divided into several operations, including:

1-cable twisting on special machines;

2-cable reception (viewing the cable and measuring its pitch and diameter);

3-winding of a spring from a cable with a pomp; by another machine on a mandrel of a specially selected diameter (the tension force of the cable when it is fed to the mandrel affects the position of the break point of the characteristic).

Special machines consist of an electric drive, a rotary twist; parts (spools) for it, an installation frame and support rollers, a crimping device with die holders and twist dies (eyes), a traction mechanism and a receiving mechanism for winding the rope onto the receiving coil. (672 B-90, M. Bukstein, “Production and use of steel ropes. Metallurgy, 1973, Moscow, p. 130).

A winding machine includes a lathe (“Processing of materials by cutting, S. S. Nekrasov, Moscow, VO“ Agropromizdat, 1988, p. 93, Fig. 46), the main nodes of which are: gearbox, feed box, guitar with interchangeable gears , caliper, tailstock. The machine is controlled by: gearshift knobs; handle for switching the link of increased pitch; fungus management for

cutting right and left threads; handwheel manual longitudinal mixing; a slider with a button to turn on and off the rack gear of the apron; handle for manual transverse movement of the caliper; push-button station; handle to manually move the upper part of the caliper; button to enable quick movement of the caliper; handle for turning on, off, reversing the longitudinal and transverse feeds of the caliper; spindle on, off and reverse handles; apron uterine nut switching handle; feed control knobs.

Thanks to its wide versatility, this machine has both multicore springs from a finished cable and single-core springs from a bar. For this, a three-jaw chuck is installed on the machine spindle for fixing one end of the mandrel for winding springs. The other end of the mandrel supports the center of the tailstock.

The disadvantage of these devices is the fact that the manufacture of a multicore spring requires two machines and three operations, as well as the need for very strict selection of wires with a narrow range of mechanical properties.

A device is known according to the copyright certificate 453212 with the claims: “A device for unwinding long material, mainly wire, containing a clip placed in the housing, carrying a coil with a supply of wire, and a drive gear, characterized in that for the purpose of regulating twisting and tensioning forces during unwinding , it is coaxially mounted with a clip and rigidly connected

with it a sleeve and a flange having slotted grooves made on its outer surface, and the gear wheel is equipped with friction discs mounted inside it parallel to one another and included in the grooves of the sleeve.

The disadvantage of this device is the inability to use it for the manufacture of multi-core springs.

The technical result of the invention is the development of a device that will expand the range of mechanical properties of a wire suitable for the manufacture of a multicore spring with the required characteristics, for example, according to the invention, copyright certificate 261329 with the claims: "A method of manufacturing multicore twisted wire products, including the operation of twisting and winding wire it on a mandrel, characterized in that in order to obtain the desired characteristics of the wire product with various mechanical properties In the wire, before stranding into a cable, they create preliminary stresses by simultaneously twisting it and stretching it.

The technical result is achieved by the fact that coils are installed on the spool along a. from. 453212 "A device for unwinding long material, mainly wire, containing a clip placed in the casing, carrying a coil with a supply of wire, and a drive gear, characterized in that for the purpose of regulating the twisting and tensioning forces during unwinding, it is coaxially mounted with the clip and rigidly a sleeve and a flange connected to it, having spline grooves made on its outer surface, and the gear is equipped with friction discs mounted inside it parallel to one another, which are included in the grooves gears whose gears interact with the central gear located on the same axis as the spool. To change the direction of the spool coils, additional gears are installed between the gears of the coils and the central gear. The central gear of the spool can be rotated.

from the outside. For the manufacture of a multi-strand spring with a central core, a self-mounted spring-loaded coil with a wire for the central core is installed on the base with a spool. In FIG. 1 shows a reel according to copyright certificate 453212. In FIG. 2 shows a diagram of the proposed device for the manufacture of a multicore spring. At the firm. 3 shows a multicore spring. In FIG. 2 shows a diagram of the proposed device for winding a multi-core spring. The electric motor 1 is attached to the feed box 2. The eye 3 is located in the immediate vicinity of the mandrel 11. The coils 4 are located on the spool 5, and the coil 6 is attached to the base tied. Gears 7 transmit rotor from the electric motor 8 and gearbox 9 to the central gear 10. The gearbox 12 is connected by a guitar 13 to the gearbox 2. The device operates as follows; Coil 4, wired with wire, are installed in the device, similar to those shown in FIG. 1. The wire from the coils is passed through the eye 3 and pinched on the mandrel 11. Then, the motors of the device 1 and 8 are turned on. The following happens. 1. The spool 5 with the coils 4 located on it rotate in the desired direction. At the same time, the coils 4 rotate relative to the rotating spool 5, twisting the wire emerging from the coils 4. At the same time, the coils 4 rotate from interaction with the central gear 10. The central wire is stretched between the coil 6 and the mandrel 11 and is the basis of a multicore spring with a central core. A wire from coils 4 is wound on it and twists into a cable. In the absence of a central wire, the cable is twisted without it. The required direction and speed of rotation of the coils is provided by the guitar 7. The required speed of rotation of the spool 5 is provided by the gearbox 9.

2. The electric motor 1 rotates the mandrel 11 through the gearbox 2, the mandrel rotates and draws the wire from the spring-loaded coils and winds the cable twisted in the eye 3 onto itself. The table of the device with the spool 5 located on it moves along the mandrel 11. forming a pitch of the winding spring. The movement of the table at a given step is carried out by setting the pitch box 12 and the guitar 13.

In this case, due to the rotation of the coils 4 relative to the spool and due to the design of the coils 4, the necessary direction and force of twisting of the wire, as well as the necessary tensile force of the wire before twisting into the cable and winding onto the mandrel 11 are achieved.

Due to this, twisting and tensile stresses are created in the wire. This ensures the expansion of the limits of mechanical properties in the manufacture of a multicore spring with predetermined characteristics.

Note: the following inventions are available on this topic:

1.A. from. 264329.

2.A. from. 453212.

3. Patent on application .№ 2001121621/12 (023063) “A method of manufacturing multi-strand coil springs with a priority of 08/01/2001.

JLif (

Claims (1)

A device for winding multi-core springs, including a mandrel for winding a spring, mechanisms for rotating the mandrel and spools and a mechanism for moving the spool along the mandrel, moved along the mandrel of the sleeve (eye) for twisting the cable and the rotating spool with coils containing a clip located in the housing, carrying a spring-loaded coil with a supply of wire and a drive gear equipped with a sleeve and a flange coaxially mounted with a ferrule and rigidly connected with it, having slotted grooves made on its outer surface, and the gear is equipped with a cm mounted inside it parallel to one another, the friction discs included in the grooves of the sleeve, characterized in that the gears of the coils interact with the central gear located on the same axis as the spool and driven from the outside.