Vacuum apparatus for conductor jostling sheath machine

Abstract

The invention discloses a vacuum device of a wire squeezing-protecting sheath machine and pertains to the technical field of wire and cable processing. The device of the invention comprises a vacuumizing interface matched and connected with a squeezing-protecting cuff of a wire squeezing-protecting sheath machine, a vacuum pipeline and a vacuum pump, and is characterized in that an air storage tank is connected on the vacuum pipeline in series; an air outlet of the air storage tank is connected with the vacuum pump, while an air inlet of the air storage tank is connected with one end of the vacuum pipeline, and the other end of the vacuum pipeline is connected with the vacuumizing interface. The device of the invention has the advantages that as the air storage tank is arranged on the vacuum pipeline of the vacuum device in the prior art, the stability of a wire in the squeezing-protecting cuff can be guaranteed, and even if a machine works once again after shutdown, the air storage tank has the balance function, therefore, fluctuation of the wire can be avoided.

Description

technical field [0001] The invention belongs to the technical field of electric wire and cable processing, and in particular relates to a vacuum device of a wire extruding and sheathing machine. Background technique [0002] Extruding the sheath to the outside of the wire is a known technology, and the used extrusion sheathing machine is also a known technology that is customarily called an injection molding machine. Fig. 2 has schematically shown the wire extruding sheathing machine widely used in the industry in the prior art, is connected with vacuum device on the extruding head of wire extruding sheathing machine, and this vacuum device comprises vacuumizing interface 1, vacuum pipeline 2 and When the vacuum pump 3 is working, the plastic particles introduced by the hopper 41 are squeezed out of the wire 5 by the extrusion sheath head 42 after being melted, and the vacuum device is working at the same time, so that the wire 5 can enter the Into the extrusion sheath head...

AI Technical Summary

Problems solved by technology

Because, if the wire 5 enters the extruding sheath head 42 in a fluctuating state, it will seriously affect the effect of extruding the sheath, and even cause defective products.

However, there are deficiencies in the above-mentioned vacuum device. The first is that the fluctuation of the voltage will affect the vacuuming stability of the vacuum pump 3, so that the lead 5 fluctuates in the extrusion sheath 42; Inevitably there will be fluctuations

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