Flat spiral spring curling machine

Abstract

The invention discloses a flat spiral spring curling machine. The flat spiral spring curling machine comprises a curling device, a photoelectric detection device, a compression limiting device and an electrical control device, wherein the compression limiting device comprises a press head, a rotating component and two limiting components, the rotating component and the limiting components can rotate, the limiting components are positioned on the two axial sides of the rotating component, the press head can lift up and down, and the lifted press head jacks the rotating component; a steel belt of a spiral spring firstly penetrates through a detection head of the photoelectric detection device, secondly penetrates through an interval between the press head and the rotating component, is limited between the two limiting components, and finally is curled by the curling device; the photoelectric detection device sends a signal, indicating that no steel belt penetrates through the detection head, to the electrical control device, and the electrical control device controls a motor of the curling device and a press head lifting action execution mechanism of the compression limiting device. According to the flat spiral spring curling machine, the compactness, the flatness and the product quality of a spiral spring in a curling procedure can be improved, the labor intensity and the skill requirements on an operator are reduced, the productivity is improved, the potential safety hazard during operation is eliminated, and the damage to the steel belt is reduced.

Description

technical field [0001] The present invention relates to flat scroll spring coiling equipment. Background technique [0002] The planar scroll spring is a spring made of elongated material with equal cross-section into a planar helical shape. The number of coils can be many, the deformation angle is large, and more energy can be stored in a smaller volume. The crimping process is a necessary process in the processing of planar scroll springs, so that the steel strip can be properly deformed to achieve the desired ideal shape and store enough energy. The coiling of the flat scroll spring is divided into two types: primary coiling and reverse coiling. The reverse coiling is to coil the steel strip in the opposite direction after the primary coiling, so as to meet the use requirements of the product and improve the performance of the product. In the existing unwinding process of springs without external hooks, the spring steel strip on the hanging shaft is hung on the coiling s...

AI Technical Summary

Problems solved by technology

In the initial stage of curling, the radius of curvature of the steel strip is small, and a dense spring cannot be formed. Usually, an additional deformation mechanism is used before the steel strip is curled to apply additional traction to the steel strip during the curling process, which is easy to cause damage to the steel strip. affect product performance

There is also a method of directly using manual traction to achieve the goal, which increases labor intensity and production costs.

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