CN201204566Y

CN201204566Y - Ultra-jump-start control drive power supply for numerical control air-jet loom

Info

Publication number: CN201204566Y
Application number: CNU2007201989986U
Authority: CN
Inventors: 黄明进; 刘文君
Original assignee: SHANGHAI TRIV ELECTRONIC TECHNOLOGIES Co Ltd
Current assignee: SHANGHAI TRIV ELECTRONIC TECHNOLOGIES Co Ltd
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2009-03-04
Anticipated expiration: 2017-12-07

Abstract

The utility model relates to a super-start control driving power source of digital controlled jet loom, comprising a first weaving machine, a second weaving machine, a Nth weaving machine, a rectifier, an inverter, an SPW modulation; further comprising a current detection module, a super-start voltage mode module, an acceleration/deceleration inhibiting circuit module, a slope signal generator module; the slope signal generator module is connected respective with the acceleration/deceleration inhibiting circuit module, the super-start voltage mode module and the SPW modulation; the acceleration/deceleration inhibiting circuit module is respectively connected with the rectifier and the inverter; the super-start voltage mode module is connected respectively with the SPW modulation and the current detection module; the inverter is respectively connected with the rectifier, the SPW modulation and the current detection module; the current detection module is connected respectively with the first weaving machine, the second weaving machine and the Nth weaving machine; beneficial effects of the utility model lie in that power source quality is improved, which makes mechanic impulse problem of a main shaft of the controlled weaving machine in super-low speed operation state be solved well.

Description

Ultra-start-up control driving power for digital controlled air weaving machine

Technical field

The utility model relates to a kind of controlling and driving power supply, relates in particular to the controlling and driving power supply in a kind of digital controlled air weaving machine.

Background technology

Digital controlled air weaving machine is the textile machine of new generation main force product that begins in the world in recent years extensively to come into operation.Its release means the end in last water-jet loom epoch in generation.It has the ability of weaving various high-quality fabrics; And have the weaving efficiency height, and weave the advantage of quality better, be main force's equipment of weaving machine.

Controlling and driving power supply effect in digital controlled air weaving machine is in operation work, the instruction that provides according to digital control system, finish control and drive super starter, make loom in starting with when looking for broken end, commentaries on classics distance when being several times as much as common running, fast and accurately operation, greatly improve the tightening weft power of first latitude, prevent the generation of stopping, and can carry out the transition under the normal weaving state, according to the weaven goods technological requirement, carry out real-time rotating speed, change apart from adjusting and control, to be adapted to weaving to the high-quality fabric.

As seen from Figure 1: controlling and driving power supply of the prior art generally is to adopt general variable-frequency control technique scheme, adds outside input, output transformer.Because a controlling and driving power supply is wanted 24 above loom work of traction, and each drops into constantly or loom quantity out of service is at random, so domestic and international similar power supply takes to add input, output transformer scheme more at present.This is can not adapt to many loads because of common controlling and driving power supply in usefulness, realizes the hard start mode in low cruise zone at random, reaches ultralow frequency, super high power output.Such scheme has improved cost greatly because of having increased transformer, and because big, the inefficient defective of the geneogenous energy consumption of transformer itself becomes the key obstruction that product improves cost performance.

Summary of the invention

The utility model technical issues that need to address have provided a kind of ultra-start-up control driving power for digital controlled air weaving machine, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: first loom, second loom, N loom, rectifier, inverter, SPWM modulation; Also comprise: current detection module, super starting resistor mode module, acceleration and deceleration suppress circuit module, slope signal generator module; Described slope signal generator module and acceleration and deceleration inhibition circuit module, super starting resistor mode module, SPWM modulation are joined respectively; Acceleration and deceleration suppress circuit module and rectifier, inverter join respectively; Super starting resistor mode module and SPWM modulation, current detection module join respectively; Inverter and rectifier, SPWM modulation, current detection module join respectively; The current detection module and first loom, second loom, N loom join respectively.

Compared with prior art, the beneficial effects of the utility model are: improved the power supply quality, the mechanical pulse problem of controlled loom main shaft under the Ultra-Low Speed running status well solved.

Description of drawings

Fig. 1 is controlling and driving power module figure of the prior art;

Fig. 2 is a module map of the present utility model;

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As seen from Figure 2: the utility model comprises: first loom, second loom, N loom, rectifier, inverter, SPWM modulation; Also comprise: current detection module, super starting resistor mode module, acceleration and deceleration suppress circuit module, slope signal generator module; Described slope signal generator module and acceleration and deceleration inhibition circuit module, super starting resistor mode module, SPWM modulation are joined respectively; Acceleration and deceleration suppress circuit module and rectifier, inverter join respectively; Super starting resistor mode module and SPWM modulation, current detection module join respectively; Inverter and rectifier, SPWM modulation, current detection module join respectively; The current detection module and first loom, second loom, N loom join respectively.

The utility model has realized not having the motor hard reboot of input, the Ultra-Low Speed of output transformer, super large torque; The utility model with the ultra-high frequency signal more than the 20kc as carrier frequency, be applied in the line asynchronous modulation scheme, improved power supply wave shape, improved the power supply quality greatly, the mechanical pulse problem of controlled loom main shaft under the Ultra-Low Speed running status well solved;

The utility model obtains to change apart from the super high power output that reaches more than 8 times than specified operation with " super starting resistor pattern ".

Compared with prior art, the utility model has increased " current detecting " module, " super starting resistor Pattern " module, " acceleration and deceleration inhibition circuit " module, " slope signal generator " module. Reduced " input transformer ", " output transformer " module.

Core link of the present utility model is in " super starting resistor pattern " module. " current detecting " module With " acceleration and deceleration inhibition circuit " module, be spindle motor for controlled driving reach do not have input, The miscellaneous function module of the super startup opering characteristic of electric apparatus under the output transformer state. " slope signal generator " Module is the input module of new control driving power.

" super starting resistor pattern " module adopts with SPWM high-speed computation energy in the utility model The cpu chip of power is set up the operational model of ultralow frequency high power work mode. According to the load running district The power parameter of territory and setting state is (by the digital control system instruction, by " slope signal generator " mould Piece provides after adjusting), resolve with inverter output current sampling value, produce one for the SPWM accent Circuit processed carries out the modulation signal of permanent power control. Thereby control by " SPWM modulation module " " inverter module " makes the utility model export to the loom main shaft motor.

Another point of the utility model is to have adopted with the ultra-high frequency signal more than the 20kc as carrier frequency Rate has realized and the diverse asynchronous modulation of general frequency conversion. Solved ultralow frequency zone (5～7Hz) Harmonic wave suppress and waveform optimization, greatly improved the load torque of controlled motor.

" current detecting " module is sampled, is also fed back output current, has improved power supply to negative The dynamic responding speed of live machine has strengthened the dynamic characteristic of load.

Claims

1. a ultra-start-up control driving power for digital controlled air weaving machine comprises: first loom, second loom, N loom, rectifier, inverter, SPWM modulation; It is characterized in that also comprising: current detection module, super starting resistor mode module, acceleration and deceleration suppress circuit module, slope signal generator module; Described slope signal generator module and acceleration and deceleration inhibition circuit module, super starting resistor mode module, SPWM modulation are joined respectively; Acceleration and deceleration suppress circuit module and rectifier, inverter join respectively; Super starting resistor mode module and SPWM modulation, current detection module join respectively; Inverter and rectifier, SPWM modulation, current detection module join respectively; The current detection module and first loom, second loom, N loom join respectively.