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Annealing control system of intermediate wire drawing machine

A technology of control system and intermediate drawing machine, which is applied in the direction of heat treatment process control, manufacturing tools, furnaces, etc., can solve problems such as inability to control annealing, and achieve the effect of ensuring accurate annealing

Inactive Publication Date: 2013-02-13
HENAN COMM CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an electric control system for annealing of an intermediate drawing machine to solve the problem that the traditional method cannot carry out accurate annealing control

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  • Annealing control system of intermediate wire drawing machine
  • Annealing control system of intermediate wire drawing machine
  • Annealing control system of intermediate wire drawing machine

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the drawings.

[0018] Such as image 3 , Figure 4 As shown, an annealing control system for a middle drawing machine includes an annealing main loop and an annealing control loop. The annealing main loop is composed of an annealing transformer and a silicon controlled rectifier T1. The annealing control loop includes a silicon controlled trigger controller 1A. The output terminal of the thyristor trigger controller 1A is correspondingly connected with the trigger terminals of the thyristors of the thyristor voltage regulating rectifier. The difference from the prior art is that the SCR trigger controller 1A samples the output voltage of the SCR voltage regulator rectifier, such as image 3 The Uf1 and Uf2 input terminals of the middle 1A are connected to the voltage across R1, R1 and R2 form a series voltage divider circuit, and the voltage across R1 feeds back the annealing voltage. The...

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Abstract

The invention relates to an annealing control system of an intermediate wire drawing machine, which is used for solving the problem that the traditional mode can not perform accurate annealing control. The system comprises an annealing main loop and an annealing control loop, wherein the annealing main loop is composed of an annealing transformer and an SCR (silicon controlled rectifier) variable-voltage rectifier; the annealing control loop comprises an SCR trigger controller; an output end of the SCR trigger controller is correspondingly connected with a trigger end of each SCR of the SCR variable-voltage rectifier; the SCR trigger controller samples the output voltage of the SCR variable-voltage rectifier; an annealing voltage setting input end is connected with a wire-out speed synchronous signal; and the wire-out speed synchronous signal feeds back the wire-out speed of the intermediate wire drawing machine. According to the invention, the trigger of the SCR is controlled according to the wire-out speed and the actual annealing voltage by use of the annealing voltage and wire-out speed closed control, and the output annealing voltage is adjusted so that the annealing current is kept constant and accurate annealing is guaranteed.

Description

Technical field [0001] The invention relates to an annealing electrical control system for a middle drawing machine. Background technique [0002] During the wire and cable production process, such as figure 1 The wire passes through the middle drawing machine 100 and the annealing chamber 200 in turn to reach the wire take-up device 300. The wire will harden after being cold drawn by the wire drawing machine. Annealing treatment is carried out to eliminate the stress and defects in the wire and restore it to the pre-cold working condition. Physical and mechanical properties, the flexibility of the wire after annealing has been greatly improved, such as the elongation at break, bending and torsion resistance have been greatly improved. [0003] The traditional annealing control method is realized by AC voltage regulation, using an annealing transformer and a thyristor AC voltage regulation device. Control system such as figure 2 As shown, the annealing control system of the middl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/62C21D11/00C21D8/06
Inventor 宋广平
Owner HENAN COMM CABLE