CN1295145A - Automatic control method of positively yarn-feeding polyethane flat machine - Google Patents
Automatic control method of positively yarn-feeding polyethane flat machine Download PDFInfo
- Publication number
- CN1295145A CN1295145A CN 00129346 CN00129346A CN1295145A CN 1295145 A CN1295145 A CN 1295145A CN 00129346 CN00129346 CN 00129346 CN 00129346 A CN00129346 A CN 00129346A CN 1295145 A CN1295145 A CN 1295145A
- Authority
- CN
- China
- Prior art keywords
- yarn
- polyethane
- feeding
- positively
- automatic control
- 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.)
- Pending
Links
Abstract
The present invention relates to knitting technology and is used for adding naked polyethane yarn to T shirt collar in a flat machine. The automatic control method includes three steps of the measurement of yarn tension changing via a sensor and conversion into electric quality; the computer communication between measurement and control via A/D and D/A conversion of a data acquisition card; and the driving of stepped motor by the computer and via a V/F converter. It can result in constant yarn feeding tension and smooth fabric with clear grains and good hand feeling.
Description
The invention discloses a kind of autocontrol method of positively yarn-feeding polyethane flat machine, belong to the knitting technology field, be mainly used in the T-shirt neck of cross machine knitting adding naked spandex yarn etc.
In the prior art, generally all adopt passive type to give the yarn mode with the T-shirt neck behind the cross machine knitting adding naked spandex yarn.Behind a series of twizzle of yarn process, tension force disk, yarn take-up spring and the thread guide eyelet, because the tension force that the frictional force of yarn and device surface and tension force disk and yarn take-up spring apply causes spandex before the feeding knitting zone very big elongation just to be arranged; Add the tension force that produces in inertia force that yarn motion produces and the braiding process, cause spandex in fabric, to be in the tense situation of high elongation.Like this, exceed the powerful scope of spandex on the one hand easily, cause the spandex fracture; On the other hand because the amount of recovery of spandex becomes the multiple relation with its elongation, so under the fabric behind the machine owing to the retraction of spandex, cause the fabric shrinkage serious; Owing to give the fluctuation of yarn tension, make feed quantity produce bigger difference, thereby cause fabric coil length scale to differ simultaneously, make fabric thick and hard, feel is poor, the collar surface irregularity; Grammes per square metre also is difficult to control.Provincial science and technology is looked into new consulting unit-Scientific and Technical Information Institute, Qingdao City through the Shandong Province, use " straight-bar machines ", " spandex ", " giving yarn " and descriptor such as " tensioners ", to " SWIC ", " Chinese science technological achievement database ", " Chinese patent database ", etc. 13 systems and database carried out update search, the result, do not see that by the end of at present identical with the present invention or akin technology is arranged, also find no identical with the present invention or akin patent application formerly.
The object of the present invention is to provide a kind of method simple, equipment needed thereby is simple, small investment, instant effect, workable, closed-loop control, negative-feedback, have automatic regulatory function, controlled volume is very inresponsive for outside and inner interference, control quality height, can make on the straight-bar machines naked spandex yarn give the yarn tension substantially constant, it is even to guarantee actively to give yarn, and difference is little, and it is little to fluctuate, the fabric loop length is uniformity comparatively, lines is clear, good hand touch, the collar surfacing can fundamentally solve the autocontrol method of the positively yarn-feeding polyethane flat machine of problems such as the shape-retaining ability of straight-bar machines T-shirt neck and wash and wear.
According to the performance characteristics of naked spandex yarn and the operation principle and the technological requirement of cross machine knitting, at existing questions in the prior art, basic design of the present invention is: adopt industrial microcomputer binding data transition card that Tension Control is carried out emulation, by the closed-loop control pid algorithm, utilization VB program design language mentions Object-Oriented Programming method, to carrying out to yarn tension realization digital PID control and by stepper motor, it suits substantially to yarn tension and is constant before the yarn behind the adding naked spandex yarn on the straight-bar machines is entering knitting zone to reach on microcomputer.
The autocontrol method of positively yarn-feeding polyethane flat machine of the present invention is characterized in that this method comprises the steps: between 1. usefulness sensor measurement tension force disks and the cross machine knitting district to add the yarn tension change frequency behind the naked spandex yarn and converts thereof into electric weight; 2. finish A/D and D/A conversion with the multifunctional data acquisition card of band A/D and D/A ALT-CH alternate channel, realize the communication between microcomputer and part of detecting and the control section; 3. according to the control of microcomputer instruction, by V/F converter and the running of driver drives stepper motor, finish automatic control, it suits substantially to yarn tension and is constant before entering the cross machine knitting district to make yarn.
Advantage of the present invention is that method is simple, and equipment needed thereby is few, small investment; Instant effect, owing to take closed loop control, negative-feedback, has automatic regulatory function, controlled volume is very inresponsive for outside and inner interference, stable and reliable operation, control quality height, can make on the straight-bar machines naked spandex yarn tension fluctuation within ± 1 gram force and tension level can preestablish, thereby it is even to guarantee actively to give yarn, difference is little, fabric loop length comparatively uniformity, lines is clear, good hand touch, the collar surfacing can fundamentally solve technical barriers such as the shape-retaining ability of straight-bar machines T-shirt neck and wash and wear.
One of most preferred embodiment of the present invention is: 1. with one be loaded on adding between tension force disk and the cross machine knitting district capacitance type sensor of the R-3192 type electronic tension meter on the yarn of naked spandex yarn measure the tension variation frequency of this yarn and convert thereof into electric weight; 2. with a Mitsubishi PLC-812PG type band A/D who is connected with 586 type microcomputers by lead and above-mentioned sensor and the multifunctional data acquisition card of D/A ALT-CH alternate channel, finish A/D and D/A conversion, realize the communication between microcomputer and part of detecting and the control section; 3. the control instruction of sending after according to above-mentioned microcomputer the signal process of being received being handled and calculated, be loaded near the running of the two-phase hybrid stepping motor on the above-mentioned yarn of above-mentioned tension force disk by QD450 type V/F converter and commercially available universal driver drives, finish automatic control, it suits substantially to yarn tension and is constant before entering the cross machine knitting district to make yarn.
More than three steps be continuous and be that microcomputer was finished automatically in moment.
Claims (1)
1, a kind of autocontrol method of positively yarn-feeding polyethane flat machine is characterized in that this method comprises the steps: between 1. usefulness sensor measurement tension force disks and the cross machine knitting district to add the yarn tension change frequency behind the naked spandex yarn and converts thereof into electric weight; 2. finish A/D and D/A conversion with the multifunctional data acquisition card of band A/D and D/A ALT-CH alternate channel, realize the communication between microcomputer and part of detecting and the control section; 3. according to the control of microcomputer instruction,, finish automatic control by V/F converter and the running of driver drives stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00129346 CN1295145A (en) | 2000-11-22 | 2000-11-22 | Automatic control method of positively yarn-feeding polyethane flat machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00129346 CN1295145A (en) | 2000-11-22 | 2000-11-22 | Automatic control method of positively yarn-feeding polyethane flat machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1295145A true CN1295145A (en) | 2001-05-16 |
Family
ID=4593423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00129346 Pending CN1295145A (en) | 2000-11-22 | 2000-11-22 | Automatic control method of positively yarn-feeding polyethane flat machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1295145A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583110A (en) * | 2012-02-21 | 2012-07-18 | 核工业理化工程研究院 | Large tension control unit of winding machine based on multifunctional data collecting card and control method of large tension control unit |
| CN102677381A (en) * | 2012-04-19 | 2012-09-19 | 浙江梦娜袜业股份有限公司 | High-elasticity and high-cotton-content sock and knitting forming process thereof |
| CN102719986A (en) * | 2012-05-31 | 2012-10-10 | 浙江伟焕机械制造有限公司 | Spandex clamp |
| CN104762742A (en) * | 2015-03-23 | 2015-07-08 | 浙江理工大学 | System and method for controlling yarns of seamless underwear machine |
| CN109208162A (en) * | 2018-08-17 | 2019-01-15 | 华尔科技集团股份有限公司 | A kind of weaving inlet wire adjusting method |
-
2000
- 2000-11-22 CN CN 00129346 patent/CN1295145A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583110A (en) * | 2012-02-21 | 2012-07-18 | 核工业理化工程研究院 | Large tension control unit of winding machine based on multifunctional data collecting card and control method of large tension control unit |
| CN102677381A (en) * | 2012-04-19 | 2012-09-19 | 浙江梦娜袜业股份有限公司 | High-elasticity and high-cotton-content sock and knitting forming process thereof |
| CN102719986A (en) * | 2012-05-31 | 2012-10-10 | 浙江伟焕机械制造有限公司 | Spandex clamp |
| CN104762742A (en) * | 2015-03-23 | 2015-07-08 | 浙江理工大学 | System and method for controlling yarns of seamless underwear machine |
| CN109208162A (en) * | 2018-08-17 | 2019-01-15 | 华尔科技集团股份有限公司 | A kind of weaving inlet wire adjusting method |
| CN109208162B (en) * | 2018-08-17 | 2021-04-27 | 华尔科技集团股份有限公司 | Textile incoming yarn adjusting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202594512U (en) | Automatic loosing-type bobbin winder | |
| CN100434585C (en) | Device and method for feeding an elastomeric yarn to a textile machine | |
| EA199800270A1 (en) | ELECTRONICALLY CONTROLLED THREAD FEEDING DEVICE | |
| CN1639400A (en) | Method and device for the constant-tension feed and take-up of a yarn fed to a textile machine | |
| CN1295145A (en) | Automatic control method of positively yarn-feeding polyethane flat machine | |
| CN102701000A (en) | Single winding device for automatic soft bobbin winder | |
| CN108178024A (en) | A kind of textile machines textile yarn wire installation | |
| CN104532458A (en) | Weft knitting single-side reverse plating jacquard fabric production method and special devices | |
| CN1265046C (en) | Method for producing knitgoods in one flat-bed machine | |
| CN102701001A (en) | Automatic slack bobbin winder | |
| CN201842934U (en) | Servo system applied on gripper loom | |
| CN204474817U (en) | A kind of integrated spinning equipment preparing chemical-fibres filaments | |
| CN105256457A (en) | Two-stage multispeed warp knitting machine electronic let-off device and control method thereof | |
| CN202449668U (en) | Single winding device of automatic loose type winding machine | |
| CA2221933A1 (en) | Thread feeding apparatus for sewing machine | |
| CN107723914A (en) | A kind of yarn tube fixing device for being applied to knitting vamp making | |
| CN207749223U (en) | A kind of yarn merging twisting yarn storage device | |
| RU2210643C2 (en) | Method of twisting of two or more threads or coating of one thread with other thread at inlet of looms used in manufacture of knitted goods, hosieries and similar goods, and device for method embodiment | |
| US4571958A (en) | Yarn feeder for circular knitting machine equipped with stripers | |
| CN207882774U (en) | A kind of tension feedback control device for hair fiber | |
| US5131244A (en) | Knitting machine with thread exchange device | |
| CN203048315U (en) | Electrical control device of chemical fiber filament full-automatic winding machine | |
| CN2613495Y (en) | Synchronous shifting type core-spinning apparatus | |
| CN203639633U (en) | Spinning head guide-driving mechanism | |
| CN207597052U (en) | A kind of yarn guide for improving knitting fabric fabric defect and flexibility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |