Automatic scissors apparatus of eletricity stranded wire

Abstract

The present invention disclose an automatic scissors apparatus of eletricity stranded wire, including scissors position sender driving device, the scissors position sender driving device is provided with shearing device, the upper blade and bottom blade of the crank arm of the shearing device and two connecting bar together with another driving device connecting to form general slipper block parallel connection four-bar mechanism; the crank arm of the upper blade and the bottom blade applies arms of different size. The automatic scissors eletricity stranded wire apparatus can shear thread end without hairpin, possessing great universality, never affected by linetype and quantity, operational safety, knife edge easily redressing, long service life, saving energy sources and providing support for full-automatic ] pressing lined brush.

Description

technical field [0001] The invention relates to an automatic scissors device for cutting electric stranded wires, in particular to an automatic scissors device used in the pressing and forming process of a wire brush. Background technique [0002] The brush body is formed by powder pressing. The traditional brush forming is to drill the holes after the powder pressing is completed, and then plant the stranded wires. Wire forming of electric brush is a new technology emerging in recent years. During the process of powder pressing and forming, the electric stranded wire on the wire roll is implanted into the brush body through the small hole in the upper punch, and then the electric wire is cut according to the required length. stranded wire. [0003] In the forming of wire brushes, the product characteristics require that when the stranded wire passes through the hole of the upper punch, it is required that the stranded wire is easy to be conveyed downward but difficult to r...

AI Technical Summary

Problems solved by technology

[0003] In the forming of wire brushes, the product characteristics require that when the stranded wire passes through the hole of the upper punch, it is required that the stranded wire is easy to be conveyed downward but difficult to retract upward, and generally the stranded wire protrudes only a few millimeters from the end face of the upper punch. When cutting the stranded wire, the back of the upper scissors often push the stranded wire upwards, causing bifurcation and deflection of the fracture, making it difficult to implant the wire when the next workpiece is pressed. The thicker the stranded wire, the more obvious the disadvantages

The currently known solution to this drawback is to make the upper blade very thin (such as the scissors of the band discrimination brush automatic press disclosed by the announcement number CN2673631Y, figure 2 Medium 6-2 upper blade), because it is difficult to cut thick electric stranded wires because of its thinness, and the cutting edge cannot be long, so it is impossible to cut multiple electric stranded wires at one time; at the same time, the service life of the blade is short, which increases the operating costs such as the man-hours for blade replacement

Another solution is to open several notches (such as Toyo Tanso in Japan) at the edge of the upper blade to form a concave edge. Replace the blade according to the change of the product and the layout during pressing, and the blade of this blade is not easy to regrind, and the service life is low

[0004] Above two kinds of known schemes all solve the problem that the port forks are prone to appear when cutting the electric stranded wire by blades. They have the defects of short blade life, difficult regrinding, and non-universal use. At present, there is no one with wide adaptability. And the device with long service life and easy regrinding of the blade automatically cuts the stranded wire

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