SU147568A1 - Wire Flat Spring Machine - Google Patents

Description

Machines for the manufacture of flat springs from wire are known, equipped with a device for winding coil springs with a predetermined number of turns.

The described automaton differs from the known ones in that it uses a mechanism for converting a cylindrical spring into a flat one consisting of a pivot of a screw punch that interacts with a fixed matrix, and an oblique guiding tray located under the matrix, which passes into a curved tray, the direction of bending of which opposite to the bending direction of the formed spring. This improves the quality of manufacture of the springs.

FIG. 1 shows the kinematic diagram of the automaton; in fig. 2 and 3-shift mechanism in two projections; in fig. 4 - flat spring.

The machine for manufacturing flat springs consists of two unwinders /, regular rollers 2, winding head 3, driven by electric motor 4 through a belt drive 5, transverse displacement mechanism 6, cutting machine 7, feed rollers 8, shear mechanism 9, command device W spring length sensor.

The machine works as follows.

From the decoiler / wire, the correct rollers 2 are fed to the mandrels 12 of the winding head 5, which simultaneously winds two helical springs. Through the transverse displacement mechanism 6 and the spring cutting mechanism 7, are fed into two of the four trays under the feed rollers 8. The knife of the cutting mechanism, periodically lowered, cuts off the helical springs of the desired length, which are carried by the rollers 8 into the streams 13 of the shift mechanism 9. In this case, the movement of the frame 14 four punch 15 shift coil spring coil down No. 147568-2 -.

The next turn rests on the matrix / 5, which prepares it to shift during the next course of the frame.

The shifted coils of the flat spring, falling into the output trays / 7, are bent, due to which self-feeding of the helical spring under the shifting punch is carried out.

The lateral movement mechanism 6 after the cut, shifting to the left or right, directs the next springs to the other two trays under the roll: with the 8, which are currently free.

The coordination of the movements of the machine and all the necessary blockages are carried out by the comaid apparatus 10.

SKB-9 of the Office for Automation and Production Facilities for Scaffolding notes the operability of the proposed automatic machine for manufacturing flat springs and recommends it for use.

Subject invention

An automatic machine for flat springs of wire, equipped with a device for winding coil springs with a specified number of turns, characterized in that, in order to increase the quality of the springs, the machine used a mechanism for converting a coil spring into a flat, consisting of shifting screw turns of a punch, interacting with a fixed matrix, and an oblique tray guiding under the matrix, passing into a curved tray, the direction of bending of which is opposite to the direction of the bend a molded spring.

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