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Electrical control system and synchronizing device for three-strand tire cord straight twisting machine

An electrical control system and direct twisting machine technology, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve problems such as inconvenient installation and maintenance, substandard strength retention rate, large twist deviation, etc., and achieve overall Good performance, improved communication efficiency, and improved force retention

Inactive Publication Date: 2014-05-21
YICHANG JINGWEI TEXTILE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an electrical control system and a synchronizing device for a 3-strand cord direct twisting machine, which can solve the problem that the strength retention rate is not up to standard and the twist deviation is not met in the 3-strand cord twisting method in the prior art. Large size, low output, inconvenient installation and maintenance, etc., especially to solve the synchronization problem between two spindles under high-speed operation

Method used

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  • Electrical control system and synchronizing device for three-strand tire cord straight twisting machine
  • Electrical control system and synchronizing device for three-strand tire cord straight twisting machine

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Effect test

Embodiment 1

[0031] Such as figure 1 Among them, an electrical control system for 3-strand cord direct twisting machine, including PLC programmable controller 1, PLC programmable controller 1 is electrically connected with a plurality of spindle position units 14, 42 spindle positions are used in this example Unit 14. Preferably, the PLC programmable controller 1 is Siemens S7-200, 300 series.

[0032] Preferably, the PLC programmable controller 1 communicates with each component through the communication module 2 of the PROFIBUS-DP bus, and the PROFIBUS-DP module adopts Siemens EM277.

[0033] PLC programmable controller 1 is also electrically connected with touch screen 3 , operation panel 4 and control power supply 5 . Among them, the touch screen 3 adopts Siemens MP277, and the operation panel 4 includes buttons, indicator lights and safety switches.

[0034] Each spindle unit 14 is provided with a single-chip controller 15, the single-chip controller 15 is electrically connected to...

Embodiment 2

[0056] Such as figure 2 Among them, a spindle synchronization device for 3-strand cord direct twisting machine includes a first spindle 24 and a second spindle 25, a single-chip microcomputer controller 15 is electrically connected to a spindle frequency converter 21, and the spindle frequency converter 21 is simultaneously connected to the first spindle The first permanent magnet synchronous motor 23 of 24 is electrically connected with the second permanent magnet synchronous motor 23' of the second spindle 25, and the first permanent magnet synchronous motor 23 and the second permanent magnet synchronous motor 23' are synchronously driven by the spindle inverter 21 rotate.

[0057] The single-chip controller 15 is open-loop controlled with the first permanent magnet synchronous motor 23 and the second permanent magnet synchronous motor 23'.

[0058] In the present invention, an AC frequency converter is used to simultaneously drive two high-speed permanent magnet synchrono...

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Abstract

Provided are an electrical control system and a synchronizing device for a three-strand tire cord straight twisting machine. The electrical control system comprises a programmable logic controller (PLC), the PLC is electrically connected with a plurality of spindle position units, single-chip microcomputer controllers are arranged in the spindle position units and electrically connected with the PLC, the PLC is electrically connected with a spindle frequency converter, the spindle frequency converter is simultaneously electrically connected with a first permanent magnet synchronous motor of a first spindle and a second permanent magnet synchronous motor of a second spindle, the first permanent magnet synchronous motor and the second permanent magnet synchronous motor are simultaneously driven by the spindle frequency converter to synchronously rotate, the speed is set by the PLC, and a starting and shutdown mode is controlled by adopting I / O contacts. The two permanent magnet synchronous motors are driven by adopting the spindle frequency converter, the twisting speeds at the two spindle positions are always consistent, the twist degree of the left spindle position and the twist degree of the right spindle position are identical, the electrical control system is high in efficiency, saves energy and is green and environmentally friendly, an open-loop control mode is adopted, and system stability is improved.

Description

technical field [0001] The invention relates to the field of direct twisting machine control, in particular to an electrical control system and a synchronizing device for a three-ply cord direct twisting machine. Background technique [0002] Cord is mainly used as car tire frame. It requires that the strength retention rate of the cord after twisting the raw silk should be greater than 94%, and the twist deviation should be less than ±8; at present, there are three twisting methods for the 3-strand cord: the first is the traditional ring twisting method, 3 A monofilament is first twisted and then retwisted. Because it is twisted twice, its strength retention rate can only reach 90%, the output is low, and the operation is inconvenient. The second is the twisting method in which two asynchronous motors are forced to achieve the same speed through synchronous belt transmission. Since the spindle speed can reach up to 10,000 rpm, due to the inconsistent driving force in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418D02G3/48
CPCY02P90/02
Inventor 杨华年潘松汪斌许金甲杨华明
Owner YICHANG JINGWEI TEXTILE MACHINERY
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