SU848131A1 - Apparatus for straightening and cutting wire - Google Patents

Description

The invention relates to the processing of metals by pressure, in particular to devices for straightening and cutting wires. It is known a device for cutting wire, comprising a housing mounted on a base with a pair of synchronized swivel discs carrying self-jamming knives, and a mechanism for rotating discs with a power element 13. A disadvantage of the known device is that its technological capabilities are limited. Closest to the proposed technical entity is a device for straightening and cutting the wire, comprising straighteners mounted on the base of the drive mechanism and kinematically connected by means of the drive gears a roller feed mechanism and a cutting mechanism consisting of a pair of gears which engage, Having cutting evu r p However, the technological capabilities of the device are limited. The purpose of the invention is to expand the technological capabilities of the device. This goal is achieved by the device for straightening and cutting the wire, which contains straightening gears mounted on the base and kinematically connected by means of gears a roller feed mechanism and a cutting mechanism consisting of a pair of meshes. gears that have cutting teeth, has a shaft with a rigidly fixed drive lead on it, while a gear is fixed on one end of the shaft, and one is freely placed on the other end of the gears of the cutting mechanism, made with a stop installed with the possibility of interaction with the leash. FIG. 1 isobrigene kinematic scheme; FIG. 2 - cutting mechanism. The device consists of a straightening mechanism 1, a drive for bending rolls, consisting of a worm gear reducer 2, feed rolls 3, gears 4 and 5, a cutting drive mechanism consisting of replaceable gears 6 to 9, a shaft 10 with a leash fixed on it 11 The cutting mechanism consists of a guide sleeve 12, a gear 13 and an gear 14 which engages with it.

focusing 15 on the butt. Gears 13 and 14 have grooves 16 for the passage of the wire 17, cut-off leads 18 inserted into them, and the gears are mounted on bearings 19.

The device works as follows.

The wire 17 from the dressing mechanism 1 is fed by the rollers 3 through the guide sleeve 12 into the groove of 16 gears 13 and 14. The rotation is transmitted to the cutting mechanism by interchangeable gears 6 to 9 on the shaft 10 and through the lead 11 fixed on the shaft 10 and rotating the stop 15 knives, made in the form of gears, are rotated freely on bearings 19. For each revolution of rotating knives 18, cutting off a piece of wire 17 occurs.

With equal numbers of turns of the feed rolls 3 and rotating knives 18, the length of the cut wire 17 is equal to the circumference of the feed roll 3. To obtain longer wire segments 17 of greater length, it is necessary to provide a greater number of turns of the feed rolls in a ratio And jro

Pi /

where Og - the number of revolutions of the applicants

rolls

Pu - the number of revolutions of the rotating knives

About - the length of the circle feed: roll.

In this case, the linear feed rate of the rotary cutter 17 is greater than the linear velocity 4

During the movement of the rotating knives 18 and at the time of insertion of the knives 18 into the wire 17, it is transmitted through the knives of gear wheels, which rotate freely on the bearings, as a result of which the speeds and the length of the wire are aligned. When this stop 15 of the gear 14 moves away from the leash 11 forward. After exiting the zone, the pieces of gear 13 and 14 stop until the approach and contact of the driver 11 with the stop 15.

Claims (2)

1. The author's certificate of the USSR. № 480483, cl. 21 F 11/00, 1973. 2. USSR author's certificate number 196029, cl. B 21 F 11/00, 1962. g 1 W /five 1ft