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Driving control system for spinning machine

A technology for drive control and spinning machines, applied in the field of control, can solve problems such as spinning manufacturing deviation from standards

Inactive Publication Date: 2005-02-02
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In particular, in a plurality of spinning units comprising separately produced spun yarns, the deceleration of the drives shared by several spinning units may lead to deviations in the production of spun yarns from the standard

Method used

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  • Driving control system for spinning machine
  • Driving control system for spinning machine
  • Driving control system for spinning machine

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Experimental program
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Embodiment Construction

[0019] A driving control system for a spinning machine according to the present invention will be described below with reference to the accompanying drawings.

[0020] First, a spinning machine employing the drive control system will be described with reference to the drawings. In this specification, the terms "upstream" and "downstream" are defined according to the running direction of the yarn during spinning. Specifically, the spinning device is located on the upstream side, and the winding device is located on the downstream side.

[0021] FIG. 4 is a front view of an example of the spinning machine 1 . Figure 5 is a schematic enlarged view of a part of the internal structure of the spinning machine 1. The spinning machine 1 is composed of, for example, an air spinning machine, and includes: a control section 1A; a spinning section 1B in which a large number of spinning units 2 are arranged side by side; a blowing section 1C; and a yarn splicing device 17 . An importa...

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PUM

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Abstract

The present invention provides a driving control system that allows a spinning machine with a large number of spinning units to continue its operation even during an instantaneous electric power failure. The driving control system works for a spinning machine having a plurality of spinning units, individual driving devices (50B) provided for the respective spinning units to drive members acting directly on a bundle of fibers or a yarn, a shared driving device (50A) provided to drive all of the plurality of spinning units, and a intra-frame member driving device (50C) that drives members not acting directly on the bundle of fibers or yarn. The driving control system includes electric power failure detecting means (56) for detecting an electric power failure in a system electric power source (51) for the driving devices (50A, 50B, 50C), deceleration control means (57) for controllably decelerating the intra-frame member driving device (50C), and supply means (54) for supplying the individual driving devices (50B) for the respective spinning units with regenerative electric power resulting from the deceleration control.

Description

technical field [0001] The present invention relates to a drive control system used in a spinning machine including a large number of spinning units, and in particular, to control performed at the time of power failure. Background technique [0002] In the prior art, as an example, a drive control method is disclosed in Japanese Patent Laid-Open No. 11-107065 (Abstract) described below, which is used in a synthetic fiber yarn manufacturing facility. The method is carried out in an apparatus comprising a plurality of inverters for driving respective motors, a converter for supplying direct current (DC) power to each inverter, a converter for supplying each inverter The controller that provides the speed command. The method implements control so that in the event of a momentary power outage, the inverters reduce the speed of the motors connected to the respective inverters in a controlled manner so that the motors that would otherwise be undersupplied have excess power due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01H1/32D01H1/28D01H4/42D01H13/00D01H13/14
CPCD01H4/42D01H13/14
Inventor 中出一彦西川寿雄
Owner MURATA MASCH LTD