CN203399042U - Comb motor control system of flat knitting machine - Google Patents
Comb motor control system of flat knitting machine Download PDFInfo
- Publication number
- CN203399042U CN203399042U CN201320526113.6U CN201320526113U CN203399042U CN 203399042 U CN203399042 U CN 203399042U CN 201320526113 U CN201320526113 U CN 201320526113U CN 203399042 U CN203399042 U CN 203399042U
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- CN
- China
- Prior art keywords
- module
- control system
- inversion
- unidirectional connection
- phase asynchronous
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Control Of Ac Motors In General (AREA)
Abstract
The utility model discloses a comb motor control system of a flat knitting machine. The comb motor control system comprises a transformer isolation module, a rectifying and filtering module, a switching power supply module, an inversion module, a zero-crossing detection module, a chopping control module and a single-phase asynchronous motor, wherein the transformer isolation module is connected with the commercial power, and is in unidirectional connection with the rectifying and filtering module; the rectifying and filtering module is in unidirectional connection the switching power supply module; the switching power supply module is in unidirectional connection with the inversion module; the inversion module is in unidirectional connection with the zero-crossing detection module and the chopping control module; and the chopping control module is connected with the single-phase asynchronous motor. The comb motor control system can well prevent the problem that the single-phase asynchronous motor cannot be controlled due to the unstable commercial power, and is suitable for the input of various alternating currents.
Description
Technical field
The utility model belongs to technical field of knitting machinery, particularly a base plate electric machine control system of flat machine.
Background technology
After a base plate Electric Machine Control for computer flat knitting machine mainly relies on the civil power of AC220V (50HZ) to isolate at present, directly carry out AC chopping and control single-phase asynchronous motor.And because some areas civil power is unstable, AC220V (50HZ) wave distortion, produces fluctuation at zero point while causing zero passage detection, cannot control motor speed by copped wave.And existing base plate motor can only use the alternating current of AC220 (50HZ), there is certain limitation.
Summary of the invention
The purpose of this utility model is in order to address the above problem, and a kind of working stability is provided, and is subject to mains harmonics to disturb a base plate electric machine control system of few flat machine.
For this reason, the technical solution of the utility model is: a base plate electric machine control system of flat machine, is characterized in that: it comprises transformation isolation module, rectification filtering module, switch power module, inversion module, zero passage detection module, copped wave control module and single-phase asynchronous motor; Described transformation isolation module connects civil power, is connected with rectification filtering module is unidirectional; The unidirectional connecting valve power module of described rectification filtering module; The unidirectional connection inversion module of described switch power module; Described inversion module unidirectional connection zero passage detection module and copped wave control module; The unidirectional connection copped wave of described zero passage detection module control module; Described copped wave control module connects single-phase asynchronous motor.
The utility model first passes through transformation isolation module by civil power, then through rectification filtering module, electric current is carried out to rectification and filtering, through switch power module, convert the electric current DC-DC after rectifying and wave-filtering to stable 48V again, by inversion module, electric current DC-AC is converted to the sine wave of AC110V (50HZ), finally by crossing zero passage detection module and AC chopping control module, drive single-phase asynchronous motor.The utility model can well avoid causing because civil power is unstable the problem of uncontrollable single-phase asynchronous motor, and is applicable to multiple alternating current input.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and execution mode of the present utility model, be described in further detail.
Fig. 1 is system block diagram of the present utility model.
Embodiment
Referring to accompanying drawing.The present embodiment comprises transformation isolation module 1, rectification filtering module 2, switch power module 3, inversion module 4, zero passage detection module 5, copped wave control module 6 and single-phase asynchronous motor 7; Described transformation isolation module 1 connects civil power 8, is connected with rectification filtering module 2 is unidirectional; The unidirectional connecting valve power module 3 of described rectification filtering module 2; The unidirectional connection inversion module 4 of described switch power module 3; The unidirectional connection zero passage detection of described inversion module 4 module 5 and copped wave control module 6; The unidirectional connection copped wave of described zero passage detection module 5 control module 6; Described copped wave control module 6 connects single-phase asynchronous motor 7.
The present embodiment first passes through transformation isolation module 1 by civil power, then through rectification filtering module 2, electric current is carried out to rectification and filtering, through switch power module 3, convert the electric current DC-DC after rectifying and wave-filtering to stable 48V again, by inversion module 4, electric current DC-AC is converted to the sine wave of AC110V (50HZ), finally by crossing zero passage detection module 5 and AC chopping control module 6 driving single-phase asynchronous motors 7.
Claims (1)
1. a base plate electric machine control system of flat machine, is characterized in that: it comprises transformation isolation module, rectification filtering module, switch power module, inversion module, zero passage detection module, copped wave control module and single-phase asynchronous motor; Described transformation isolation module connects civil power, is connected with rectification filtering module is unidirectional; The unidirectional connecting valve power module of described rectification filtering module; The unidirectional connection inversion module of described switch power module; Described inversion module unidirectional connection zero passage detection module and copped wave control module; The unidirectional connection copped wave of described zero passage detection module control module; Described copped wave control module connects single-phase asynchronous motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526113.6U CN203399042U (en) | 2013-08-28 | 2013-08-28 | Comb motor control system of flat knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526113.6U CN203399042U (en) | 2013-08-28 | 2013-08-28 | Comb motor control system of flat knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203399042U true CN203399042U (en) | 2014-01-15 |
Family
ID=49910539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320526113.6U Expired - Lifetime CN203399042U (en) | 2013-08-28 | 2013-08-28 | Comb motor control system of flat knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203399042U (en) |
-
2013
- 2013-08-28 CN CN201320526113.6U patent/CN203399042U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |