S spring cut-off device

Abstract

The invention provides a cutting device of an S spring, which belongs to the technical field of machinery, and solves the problem of low cutting efficiency of S springs in the prior art. The cutting device of the S spring comprises a frame and a worktable arranged in the frame, wherein a punch press having an upper die and a lower die is arranged on the worktable; the punch press is fixed on the frame; the upper die is fixed on an upper die seat; a first cutting knife component and a second cutting knife component which are oppositely arranged are set on the lower face of the upper die; the first cutting knife component comprises a first cutting knife, a first curved knife and a first positioning knife; the first curved knife is positioned between the first cutting knife and the first positioning knife; the length of the first curved knife is less than the length of the first cutting knife; the bit of the first curved knife is provided with a cambered surface which is oblique from top to bottom; the second cutting knife component comprises a second cutting knife, a second curved knife and a second positioning knife; the first cutting knife is opposite to the second cutting knife; the second curved knife is positioned between the second cutting knife and the second positioning knife; the length of the second curved knife is less than the length of the second cutting knife; and the bit of the second curved knife is provided with a cambered surface which is oblique from top to bottom. The cutting device provided by the invention has high cutting efficiency of S springs.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a cutting device for an S spring. Background technique [0002] S spring, also called serpentine spring, is widely used in the seat cushion and back of the sofa. The degree of automation in the existing technology is relatively low, resulting in very low processing efficiency. After searching, for example, Chinese patent literature discloses an automatic serpentine spring production equipment [patent number: ZL201410182653.6; authorized announcement number: CN103978130A]. This automatic serpentine spring production equipment is characterized in that the equipment is sequentially equipped with a pay-off reel, a serpentine spring bending machine, a buffer, a cutting machine, two spring conveying wheels and an automatic detection system from the previous process to the subsequent process. An adjustment device, the automatic detection and adjustment device is composed of detection a...

AI Technical Summary

Problems solved by technology

[0003] However, there are many deficiencies in this automatic serpentine spring production equipment, such as: 1. The S spring needs to be provided with a bend angle at both ends of the sofa cushion. Relatively low work efficiency; 2. The waste after cutting is not recycled in time

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