GB863146A - Improvements in or relating to the control of drafting systems in textile spinning machines - Google Patents
Improvements in or relating to the control of drafting systems in textile spinning machinesInfo
- Publication number
- GB863146A GB863146A GB32771/58A GB3277158A GB863146A GB 863146 A GB863146 A GB 863146A GB 32771/58 A GB32771/58 A GB 32771/58A GB 3277158 A GB3277158 A GB 3277158A GB 863146 A GB863146 A GB 863146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- potentiometer
- measuring device
- rollers
- signal
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
- D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
- D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
863,146. Electric correspondence control systems. ZELLWEGER Ltd. Oct. 14, 1958 [Jan. 9, 1958], No. 32771/58. Class 40 (1). [Also in Groups XXXVI and XL (b)] Textile material 9 (Fig. 1), is fed sequentially through a measuring device 1, giving a voltage U 1 indicative of the distributed weight per unit length of the material, a first pair of drafting rollers 7, 8 driven at a constant speed n 2 , and a second pair of drafting rollers 5, 6 driven at a variable speed n 3 determined partly by the signal U 1 , so that the weight per unit length of the material after leaving the rollers is constant. The speed n 2 is reduced by the average drafting factor by gears 10, 11 to speed n 1 , which is compared with the constant speed n 2 in a differential gear 12, and produces a signal U 3 from potentiometer 16 indicative of the speed difference, which at 2 is algebraically added to signal U 1 from the measuring device 1, fed through a delay circuit 30, and a rate signal U 5 from tachogenerator 31, to control the drive motor 4 for rollers 5, 6. Long term variations cause the slider 17 to move to one end of potentiometer 16 to close alarm circuits at 20 or 21. In one modification (Fig. 2, not shown), potentiometer 16 acts as one branch of a bridge with a ratio determined by the position of slider 17, the measuring device 1 being one of the other arms, whereby the bridge unbalance voltage is a combination of signals U 1 and U 3 . In a further modification potentiometer 16 is replaced by a variable capacitor. The measuring device 1 is preferably in the form of a test capacitor with the material 9 as its dielectric. In one embodiment (Fig. 4, not shown) the quality of the material 9 is determined by the light (or other radiation) reacting a first photo-cell 29 from a lamp 28 through the material, which is balanced by corresponding movement of a vane 25 between the lamp 28 and a second photo-cell 24 to produce the required control signals. Specification 816,375 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH863146X | 1958-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB863146A true GB863146A (en) | 1961-03-15 |
Family
ID=4543341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32771/58A Expired GB863146A (en) | 1958-01-09 | 1958-10-14 | Improvements in or relating to the control of drafting systems in textile spinning machines |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3099048A (en) |
| CH (1) | CH356386A (en) |
| DE (1) | DE1097328B (en) |
| FR (1) | FR1210083A (en) |
| GB (1) | GB863146A (en) |
| NL (1) | NL99739C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB959448A (en) * | 1960-08-13 | 1964-06-03 | Cotton Silk & Man Made Fibres | Improvements in or relating to scutchers |
| CH474583A (en) * | 1966-06-02 | 1969-06-30 | Luwa Ag | Amplifier input circuit for capacitive measuring sensors in a monitoring device for textile machines |
| DE1931929C3 (en) * | 1969-06-24 | 1980-08-07 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | Device for equalizing textile slivers |
| US4006609A (en) * | 1974-04-29 | 1977-02-08 | Bunker Ramo Corporation | Manufacturing of patterned deep pile circular knitted fabric |
| DE3205880A1 (en) * | 1982-02-18 | 1983-08-25 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | STRETCHER FOR A SPINNING MACHINE |
| DE3425345A1 (en) * | 1984-07-10 | 1986-01-30 | Trützschler GmbH & Co KG, 4050 Mönchengladbach | METHOD AND DEVICE FOR PRODUCING A UNIFORM, CONTINUOUS QUANTITY OF FIBERS |
| CH668781A5 (en) * | 1984-09-25 | 1989-01-31 | Zellweger Uster Ag | METHOD AND DEVICE FOR OPTIMIZING THE STRETCHING PROCESS IN REGULATORY TRACKS OF THE TEXTILE INDUSTRY. |
| EP0477589B1 (en) * | 1990-09-26 | 1996-04-24 | Maschinenfabrik Rieter Ag | Method for the correction of a determined measuring signal for the mass of a fiber band at an autolevellor for fiber bands with an outlet measuring device |
| DE4215682B4 (en) * | 1991-06-04 | 2004-07-22 | Rieter Ingolstadt Spinnereimaschinenbau Ag | Method and device for correcting the regulating point of application and the regulating intensity |
| CH685164A5 (en) * | 1992-03-05 | 1995-04-13 | Zellweger Uster Ag | Method and apparatus for controlling the delay of a drafting. |
| DE4219777A1 (en) * | 1992-06-17 | 1993-12-23 | Rieter Ingolstadt Spinnerei | Method and device for signal analysis of a regulating system |
| DE4301953C2 (en) * | 1993-01-25 | 1994-12-15 | Rieter Ingolstadt Spinnerei | Procedure for setting and connecting drafting devices and draw frame |
| DE4307839A1 (en) * | 1993-03-12 | 1994-09-15 | Rieter Ingolstadt Spinnerei | Method and device for automatically setting the speed ratios on a route |
| EP3031967B1 (en) * | 2014-12-11 | 2019-02-27 | SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH | Machine and method for the production of knitted fabric |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2812553A (en) * | 1954-06-24 | 1957-11-12 | Ind Res Inst Of The University | Textile machine device |
| FR1106188A (en) * | 1954-08-04 | 1955-12-13 | Hewittic | Method for regularizing the average section of threads, rovings, ribbons, etc., and device for carrying out this method |
| US2843882A (en) * | 1955-06-08 | 1958-07-22 | Us Rubber Co | Evener |
| US2930084A (en) * | 1955-10-28 | 1960-03-29 | Bates Mfg Co | Apparatus for corrective drafting of strands of discontinuous fibers |
-
0
- NL NL99739D patent/NL99739C/xx active
-
1958
- 1958-01-09 CH CH356386D patent/CH356386A/en unknown
- 1958-07-07 DE DEZ6743A patent/DE1097328B/en active Pending
- 1958-08-22 FR FR1210083D patent/FR1210083A/en not_active Expired
- 1958-10-14 GB GB32771/58A patent/GB863146A/en not_active Expired
-
1959
- 1959-01-02 US US784568A patent/US3099048A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1210083A (en) | 1960-03-07 |
| NL99739C (en) | |
| DE1097328B (en) | 1961-01-12 |
| US3099048A (en) | 1963-07-30 |
| CH356386A (en) | 1961-08-15 |
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