CN203256444U

CN203256444U - Warp conveying control device used for warp knitting machine

Info

Publication number: CN203256444U
Application number: CN 201320143202
Authority: CN
Inventors: 刘利平; 邱火星; 杨华; 王飞
Original assignee: CHANGSHA KAIZHENG ELECTRONICS Co Ltd
Current assignee: CHANGSHA KAIZHENG ELECTRONICS Co Ltd
Priority date: 2013-03-27
Filing date: 2013-03-27
Publication date: 2013-10-30
Anticipated expiration: 2023-03-27

Abstract

The utility model discloses a warp conveying control device used for a warp knitting machine. The warp conveying control device used for the warp knitting machine comprises a DSP chip serving as a processing core and a CPLD chip connected with the DSP chip, wherein the CPLD chip is connected with a servo motor through an IGBT drive circuit and is connected with a main shaft encoder through a photoelectric coupler, and the DSP chip is externally connected with a ferroelectric memory. The warp conveying control device used for the warp knitting machine further comprises a human-computer interaction device and a power supply module, wherein the DSP chip is in communication connection with the human-computer interaction device, the power supply module is connected with the DSP chip and the CPLD chip to provide electricity for the DSP chip and the CPLD chip, and clock modules are further arranged on the DSP chip and the CPLD chip respectively. The warp conveying control device used for the warp knitting machine has the advantages that the defects in the prior art can be overcome, the accuracy of warp conveying is improved due to the adoption of an automatic closed-loop control device formed by the DSP chip and the CPLD chip, and the quality of cloth is guaranteed.

Description

A kind of warp let-off control device for the warp knitting machine tool

Technical field

The utility model relates to a kind of control device of warp knitting machine tool, especially a kind of warp let-off control device for the warp knitting machine tool.

Background technology

Traditional warp knitting machine tool adopts mechanical warp let-off control system, can't automatically regulate warp run-in according to actual conditions, and long-term use can cause gear wear, affects flatness and the pliability of cloth cover.Can not adapt to the consumer far away to the demand of high-quality cloth.

The utility model content

The technical problems to be solved in the utility model provides a kind of warp let-off control device for the warp knitting machine tool, can solve the deficiencies in the prior art, by taking the closed loop automatic control apparatus of DSP+CPLD, has improved the degree of accuracy of warp run-in, has guaranteed the cloth quality.

For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.

A kind of warp let-off control device for the warp knitting machine tool, comprise in the structure as the dsp chip of processing core and the CPLD chip that is attached thereto, the CPLD chip is connected with servomotor by the IGBT drive circuit, and the CPLD chip links to each other with spindle encoder by photoelectrical coupler; The external ferroelectric memory of dsp chip; Also comprise human-computer interaction device and power module in the structure, dsp chip carries out communication with human-computer interaction device and is connected; Power module links to each other with dsp chip, CPLD chip respectively, for it provides power supply; On dsp chip and CPLD chip, also be respectively arranged with clock module.

As preferably, described dsp chip and human-computer interaction device carry out communication by the RS-485 bus.

As preferably, described CPLD chip is circumscribed with audible-visual annunciator by the IGBT drive circuit.

As preferably, the model of described dsp chip is TMS320F2812.

As preferably, the model of described CPLD chip is EPM1270T.

As preferably, the model of described ferroelectric memory is FM18L08.

The beneficial effect that adopts technique scheme to bring is: the utility model has improved the degree of accuracy of warp run-in by taking the closed loop automatic control apparatus of DSP+CPLD, has guaranteed the cloth quality.The use of ferroelectric memory has improved the resistance to overturning of device, and external audible-visual annunciator can be notified the related personnel with abnormal signal the very first time.Simultaneously, reduce mechanical wear, greatly prolonged the service life of warp knitting machine tool.In addition, when changing product, only need in human-computer interaction device, get final product by the input product desired parameters, save when using mechanical warp let-off control system with the more work of gear changing of replacing product, save time and the labour.

Description of drawings

Fig. 1 is the schematic diagram of a specific embodiment of the utility model.

Among the figure: 1, dsp chip; 2, CPLD chip; 3, IGBT drive circuit; 4, photoelectrical coupler; 5, spindle encoder; 6, ferroelectric memory; 7, human-computer interaction device; 8, power module; 9, RS-485 bus; 10, clock module; 11, audible-visual annunciator; 12, servomotor.

The specific embodiment

With reference to Fig. 1, comprise in the structure of the present utility model as the dsp chip 1 of processing core and the CPLD chip 2 that is attached thereto, CPLD chip 2 is connected with servomotor 12 by IGBT drive circuit 3, and CPLD chip 2 links to each other with spindle encoder 5 by photoelectrical coupler 4; Dsp chip 1 external ferroelectric memory 6; Also comprise human-computer interaction device 7 and power module 8 in the structure, dsp chip 1 carries out communication with human-computer interaction device 7 and is connected; Power module 8 links to each other with dsp chip 1, CPLD chip 2 respectively, for it provides power supply; On dsp chip 1 and CPLD chip 2, also be respectively arranged with clock module 10.

It should be noted that described dsp chip 1 carries out communication with human-computer interaction device 7 by RS-485 bus 9.

It should be noted that described CPLD chip 2 is circumscribed with audible-visual annunciator 11 by IGBT drive circuit 3.

Model that it should be noted that described dsp chip 1 is TMS320F2812.

Model that it should be noted that described CPLD chip 2 is EPM1270T.

In addition, the model of described ferroelectric memory 6 is FM18L08.

Operation principle of the present utility model is: human-computer interaction device 7 will be controlled parameter and input to dsp chip 1 by RS-485 bus 9, dsp chip 1 sends required pwm signal to CPLD chip 2, after 2 pairs of signals of CPLD chip are processed, by 12 work of IGBT drive circuit 3 control servomotors.The feedback signal that spindle encoder 5 gathers is passed to CPLD chip 2 by photoelectrical coupler 4, CPLD chip 2 is passed to dsp chip 1 after signal is processed, dsp chip 1 is adjusted output signal according to feedback signal, and the result is passed to human-computer interaction device 7 by RS-485 bus 9 shows.When appearance was unusual, CPLD chip 2 triggered audible-visual annunciators 11 by IGBT drive circuit 3, and the very first time points out the related personnel.

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. warp let-off control device that is used for the warp knitting machine tool, it is characterized in that: comprise in the structure as the dsp chip (1) of processing core and the CPLD chip (2) that is attached thereto, CPLD chip (2) is connected with servomotor (12) by IGBT drive circuit (3), and CPLD chip (2) links to each other with spindle encoder (5) by photoelectrical coupler (4); The external ferroelectric memory of dsp chip (1) (6); Also comprise human-computer interaction device (7) and power module (8) in the structure, dsp chip (1) carries out communication with human-computer interaction device (7) and is connected; Power module (8) links to each other with dsp chip (1), CPLD chip (2) respectively, for it provides power supply; On dsp chip (1) and CPLD chip (2), also be respectively arranged with clock module (10).

2. the warp let-off control device for the warp knitting machine tool according to claim 1 is characterized in that: described dsp chip (1) carries out communication with human-computer interaction device (7) by RS-485 bus (9).

3. the warp let-off control device for the warp knitting machine tool according to claim 1, it is characterized in that: described CPLD chip (2) is circumscribed with audible-visual annunciator (11) by IGBT drive circuit (3).

4. the described warp let-off control device for the warp knitting machine tool of any one according to claim 1-3, it is characterized in that: the model of described dsp chip (1) is TMS320F2812.

5. the described warp let-off control device for the warp knitting machine tool of any one according to claim 1-3, it is characterized in that: the model of described CPLD chip (2) is EPM1270T.

6. the described warp let-off control device for the warp knitting machine tool of any one according to claim 1-3, it is characterized in that: the model of described ferroelectric memory (6) is FM18L08.