SU1346375A1 - Installation for removing metal-cord layer - Google Patents

Abstract

The invention relates to welding and can be used in butt fusion welding of metal, lock cord (MK), consisting of individual wires. The aim of the invention is to increase plant capacity. The carriage 2 and the plate 4 are provided with additional clamping devices 7 and 10 with electromechanical drives 13 and .14. In the initial position, one of the ends of the MK is installed in the clamping devices 9 of the plate 4 and the other in the clamping device 10 of the plate 4 and the clamping device 8 of the carriage 2. The loose ends of the MC are removed by cutting and the ends of the MK are simultaneously prepared for welding. After the plate 4 is moved from one extreme position to the other, the clamping devices 7 and 10 are arranged along the same axis. Welded and heat treated MK. At the same time, the change of the offset and other parameters of the welding and heat treatment modes occurs automatically according to a given program. The elimination of manual operations increases reproducibility and shortens the duration of the technological cycle. 3 il. i (L with 4 about: SO ch1 SP)

Description

The invention relates to welding and can be used in flash butt welding by metal cord, consisting of individual wires of small diameter, in tire industry, as well as other branches, producing or using steel cord.

 The purpose of the invention is to improve the performance of the installation

Fig. 1 shows the installation for welding, the metal cord in the position-Corresponding cutting, top view; ca fig. 2 - the same, vvd in front; FIG. 3 shows the installation for welding a metal cord in the position corresponding to welding, top view.

The installation comprises a fixed frame 1, a carriage 2 mounted with the possibility of reciprocating movement relative to the frame 1 along the guides 3, a plate 4 made with the possibility of moving along the guides 5 and the gasket 6 insulated from the base 1.

Clamping devices 7 and 8 are located on the carriage 2, and clamping devices 9 and 10 are located on the plate. Clamping devices 8 and 9 fix the steel cord with the help of springs 11, and the opening is carried out with the help of eccentric screws. levers 12 manually. The clamping devices 7 and 10 are controlled using electromechanical actuators 13 and 14. located on the carriage 2 and the plate 4.

The movement of the plate 4 provides the electric motor 15 by means of a rack and pinion transfer 16. Restrictions of the plate 4 are limited by the stops 17 and 18. The movement of the carriage 2 to the left is provided by the electric motor 19 through the cam 20, to the right the carriage 2 returns under the action of spring 21, which simultaneously creates the force required for welding metal cord. The magnitude of this effort is controlled by moving the angle bracket 22 when setting up the installation.

In order to reliably center the ends of the steel cord 23, welding uses the restriction of movement of the plate 4 with stops 17 and 18, made with an adjustment capacity, and the movement of the carriage 2 along the guides 3 is carried out using separators with balls 24,

To limit the size of the moving plate 4, a stop 25, made of non-electric

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and 10 by pressing the buttons Za, Clamp right on the block

wire material. The installation also contains a control unit for cutting, welding and heat treatment processes. The process of joining the ends of the metal cord on the installation has three stages: cutting the loose ends with flashing of the ends, butt welding and heat treatment.

The installation works as follows.

The end of one metal cord 23 is inserted into glands 7 and 9, the end of the other into clips 8 and 10. The threads are clamped in clamping devices: in devices 8 and 9 manually, in devices 7, press the left control.

The Start button on the control unit is pressed, the whole further technological cycle proceeds automatically.

After cutting the steel cord in two pairs of clamping devices 7, 9 and 8, 10, an electric motor 15 is turned on, which, through a drive element made in the form of a rack and pinion 16, moves the plate 4 forward to the stop 18. After this, the electric motor 19 turns on, which zan with the carriage 2. Ku-. The cover 20 releases the carriage 2 and, under the action of the spring 21, it moves to the right until the ends of the metaplocord strands, prepared for welding by the preliminary cutting operation, are touching.

The current is turned on and welding of the steel cord and its sediment is carried out under the action of a certain force generated by the spring 21, up to the stop 25. Then a signal is sent to the electromechanical actuator 13 and the clamping device 7 opens.

Next, the carriage 2 moves to the left by the electric motor 19 by a distance equal to half the gap between the clamps 7 and 10, required for the heat treatment of the steel cord. After this, the steel cord is clamped in the clamping device 7 and the clamp 10 opens by means of an electromechanical actuator 14. The electric motor 19 is switched on again, moving the carriage 2 to the left until the gap between clamps 7 and 10, equal to the value required for heat treatment of the metal cord, is clamped

clamping device 10 and the heat treatment current is turned on.

At the end of the heat treatment, clamps 7 and 10 are opened. The automatic cycle is completed. The welded and heat-treated metal cord is removed from the clamping devices. By pressing the Prepare button on the control unit, the setting returns to the initial position, i.e. the carriage 2 is moved to the right to the position when the gap between the clamp and the clamping device corresponds to the cutting process of the steel cord, and the pin 4 goes back to the stop 17.

The use of the proposed installation for welding a steel cord allows reducing the time required for the implementation of the technological cycle (cutting - welding - heat treatment) by reducing the number of non-mechanized clamping and unclamping pressure devices, as well as

simultaneous cutting of two strands of steel cord in two pairs of clamps.

Claims (1)

Invention Formula A steel cord welding installation containing a frame with a shuit located on it and a carriage mounted for reciprocating relative to the frame, clamping devices mounted on a plate and a carriage, a control unit for the processes of cutting, welding and heat treatment that differs from In order to increase productivity, the plate is made movable with the possibility of reciprocating movement relative to the bed perpendicular to the direction of movement of the carriage, and the plate and the carriage provide enes mounted thereon additional clamping devices with electromechanical actuators.  / l / / / vx / xy / vx / x; 24 2 Njbo Vj Editor H. Bobkov Order 5426 Tehred L. Serdyukova Proofreader E. Poichakova Circulation 922 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, at l. Project, 4