CN1287019C - Measurer of pre-stretching set value in automatic fiber top-regulating gill box - Google Patents
Measurer of pre-stretching set value in automatic fiber top-regulating gill box Download PDFInfo
- Publication number
- CN1287019C CN1287019C CN02104581.XA CN02104581A CN1287019C CN 1287019 C CN1287019 C CN 1287019C CN 02104581 A CN02104581 A CN 02104581A CN 1287019 C CN1287019 C CN 1287019C
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- CN
- China
- Prior art keywords
- predraft
- number variation
- measured value
- accordance
- strip number
- 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 - Fee Related
Links
- 239000000835 fiber Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Images
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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
- D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/32—Counting, measuring, recording or registering devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Treatment Of Fiber Materials (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
A method of determining an optimal preliminary draft of sliver running consecutively through a preliminary drafting field and a principal drafting field. The method includes the following steps: setting various levels for the preliminary draft; measuring quality-characterizing magnitudes of the sliver drafted at the various preliminary draft levels; deriving sliver number deviations from the quality-characterizing magnitudes; determining a function between the sliver number deviations and the respective preliminary draft levels; forming two approximated straight lines from the function; determining a value of a point of intersection between the two straight lines; and utilizing the value of the point of intersection for setting the optimal preliminary draft.
Description
Technical field
The present invention relates to a kind of method that on the autoleveller gill box of ribbon, is used to measure the predraft setting, wherein the middle lower roll of drafting system is variable with the ratio of the peripheral speed of inlet lower roll, and can note the measured value that resembles the such qualitative character of thickness deviation, thereby draw the strip number variation by means of the ribbon that stretches.The invention still further relates to a kind of and the method corresponding device thereof.
Background technology
By two predraft change gears, can set up the predraft on the drafting system.Predraft degree best in actual conditions is determined by the cotton thread mark of multilayer.The predraft degree is with the quality of (Steckenbaender) and the efficient of spinning machine that significant meaning is all arranged for checking cotton thread and insertion.In the setting process of drafting system, measure different predraft degree, and according to optimization aim, just good the cotton thread coefficient of variation (Garn-CV) or high intensity are selected to adjust accordingly for this reason.The correspondingly selected suitable change gear of people.Here a shortcoming of Cun Zaiing is, this setting method requires a lot of experiences, can not carry out online (online) with the method in addition and measure.
Summary of the invention
The objective of the invention is to, make the device that a kind of article beginning was described, it overcomes above-mentioned shortcoming, and particularly makes the best predraft of on-line determination become possibility, can make better fibr tissue, as ribbon, cotton thread etc.
For this reason, the present invention proposes a kind of method that is used to measure the setting of predraft on the autoleveller gill box of ribbon, wherein the ratio of the peripheral speed of the middle lower roll of drafting system and inlet lower roll is variable, and by means of the ribbon that stretches, can note the measured value that characterizes qualitative character, thereby can draw the strip number variation, it is characterized in that, determine the measured value of strip number variation and the function between the predraft value, go out measured value by two line reflections that approach, the intersection point of straight line is used for setting up best predraft.
Correspondingly, the invention provides a kind of device that on the autoleveller gill box of ribbon, is used to measure the setting of predraft, wherein the ratio of the peripheral speed of the middle lower roll of drafting system and inlet lower roll is variable, outlet at neat and well spaced gill box is provided with a ribbon funnel that has the thickness measurement mechanism, in order to the fiber thickness measured value is noted when the stretch fiber strip, measured value by the thickness deviation calculates the strip number variation, it is characterized in that, one Electronic Control and adjusting device are set, determine the measured value of strip number variation and the function between the predraft value by this control and adjusting device, described measured value is to calculate and/or express with diagrammatic form by two straight lines that approach, and the intersection point of two straight lines is used for setting up best predraft.
Reach a kind of on-line determination of best predraft by method of the present invention.Even therefore when the kind conversion, also may carry out optimum setting.Store by means of the predraft numerical value of the method most important fibrous material.In addition, device of the present invention can be used for the Automatic Optimal that neat and well spaced gill box is set up.
In view of the above, the band funnel that has the thickness measurement mechanism, for example a ligulate detector are arranged in neat and well spaced gill box exit.The thickness measured value preferably converts the signal of telecommunication to.It is favourable obtaining the strip number variation by the thickness deviation.Preferred on-line determination thickness deviation or strip number variation.The strip number variation is corresponding to certain predraft.The corresponding relation of this strip number variation and certain predraft can advantageously be realized calculating, for example by a computer.The corresponding relation of strip number variation and certain predraft preferably can be expressed by the mode of form.The strip number variation also can be described out with the method for figure with certain the corresponding of predraft aptly.The curling of fibrous material just is drawn out or the intersection point of two straight lines when stretching preferably can give expression to predraft.These two straight lines can automatically approach, and as passing through a computer, this is very favourable.The definite of the intersection point of these two straight lines preferably can automatically realize, as passing through a computer.Best predraft is near a constant place two straight-line intersections aptly.The mensuration of best predraft preferably automatically realizes.The setting of best predraft is preferably automatically finished.Ribbon thickness measurement mechanism as measuring funnel, can suitably connect an Electronic Control and regulator, as microcomputer.Preferably the setting device of predraft and Electronic Control and regulator are coupled together.
Description of drawings
Illustrate the present invention in more detail by means of the embodiment that represents by accompanying drawing below.
Accompanying drawing is represented:
Fig. 1 schematically represents to be equipped with the autoleveller gill box of device of the present invention with side view
The relation of Fig. 2 strip number variation and predraft degree
The specific embodiment
According to Fig. 1, a neat and well spaced gill box as Truetzschler-Strecke HSR, has a drafting system 2, is provided with drafting system inlet 3 before it and is provided with drafting system outlet 4 thereafter.Ribbon 5 (not shown) that comes out from the bar tube enters into ribbon guide rail 6, by carry-over pinch rolls 7,8 tractives, transports over from testing element 9.Drafting system 2 is the drafting systems (4-ueber-3-Streckwerk) that are designed on a kind of 4 under 3, and it is made up of three lower roll I, II, III (in the middle of I outlet lower roll, the II lower roll, III enter the mouth lower roll) and four top rolls 11,12,13,14 in other words.In drafting system 2, carry out the ribbon group 5 formed by many ribbons 5
IVStretching.This stretching comprises predraft and main the stretching.Roller group 14/III and 13/II constitute the predraft zone, and roller group 13/II and 11,12/I constitute main stretch zones.Ribbon group 5 in the predraft zone
IReach ribbon group 5 in main stretch zones
IIStretched.The ribbon 5 of drawn
IIIReach a non-woven guide rail 10 and by means of carry-over pinch rolls 15,16, derive by a ribbon funnel 17 in drafting system outlet 4, they are merged into a ribbon 18 in this funnel.Then this ribbon is placed in the bar tube.Represent operative orientation with A.
By the carry-over pinch rolls 7,8 mechanically coupled together as toothed timing belt, inlet lower roll III and middle lower roll II are driven by servomotor 19, can a theoretical value given in advance at this.(affiliated top roll 14 and 13 is along with running.) outlet lower roll I and carry-over pinch rolls 15,16 drive by main motor 20.Servomotor 19 and main motor 20 have the adjuster 21 and 22 of oneself separately, regulating (rotational speed regulation) realizes by the regulating loop of a sealing respectively, set a tachometer generator 23 wherein for servomotor 19, set a tachometer generator 24 for main motor 20.At drafting system enter the mouth one at 3 places and the proportional numerical value of quality, as: feed the cross section of the ribbon of giving 5, measured by an inlet measuring mechanism, this mechanism is for example learnt by DE-A-44 04 326.The cross section (thickness) that exports the ribbon 18 that comes out at 4 places at drafting system is measured by an outlet measuring mechanism 25 that is equipped on ribbon funnel 17, and this measuring mechanism is for example learnt by DE-A-195 37 983.A central computation unit 26 (control and adjusting device) will be transferred to adjuster 21 to the setting of servomotor 19 theoretical values as the microcomputer of being with microprocessor.These two measuring mechanisms 9 and 25 measured value are passed to central computation unit 26 in drawing process.In central computation unit 26, determine the theoretical value of adjustment motor 19 by the cross section theoretical value of the measured value of inlet measuring mechanism 9 and the ribbon 18 of pulling out.The measured value of outlet measuring mechanism 25 is used for monitoring ribbon 18 (output bars monitoring) of pulling out and the on-line determination of monitoring best predraft.By means of this cover regulating system, feed the cross section fluctuation of the ribbon of giving 5 and can offset by the corresponding adjusting of drawing process, reach the homogenising of ribbon in other words.Screen is with 27, and interface is with 28, and input unit is with 29, and depression bar is represented with 30.
The measured value that draws from measuring cell 25 as the fluctuation of the thickness of ribbon 18, is passed to 31 li of memories in the computer 26.Device of the present invention makes the direct mensuration of predraft setting become possibility.By means of the ribbon 5 that stretches
III, many ribbons 5 that come out
IIIThe fiber thickness measured value all note by measuring mechanism 25, and long for different bars, also can in control and adjusting device 26, calculate the strip number variation by them.And then by control and adjusting device 26, microcomputer for example, determine the measured value of strip number variation and the function between the predraft value by Fig. 2, and measured value can calculate and/or express with diagrammatic form by two (being similar to) straight lines that approach, and the intersection point of two straight lines then is used for setting up best predraft.
Best predraft degree is determined with device of the present invention and is set up on neat and well spaced gill box.Because best predraft degree can be online definite on neat and well spaced gill box, and set a characteristic KW for this predraft degree, so the crimp energy of drawing process tensile bars is expressed with being geared to actual circumstances.This measure is an important step of carrying out neat and well spaced gill box Automatic Optimal.The purpose of predraft is the curling tension in the fiber.Exist a predraft point, this time curl just by stretching from fiber, on this optimum stretch degree or under, quality all can be relatively poor.Therefore this best predraft degree on the tensile bars can come out by a measurement numerical expression.
If the fiber that curls enters into the main stretch zones of neat and well spaced gill box from predraft, produce one for the tensile force in the main drawing zone so and be different from the fiber that stretched the fully tensile force grade when predraft enters main stretch zones.This tensile force changes and can be measured by outlet measurement funnel, thereby the optimum stretch degree can be measured funnel mensuration with outlet.Therefore best predraft degree is corresponding to stretching fiber fully just when the predraft.
Claims (20)
1. on the autoleveller gill box of ribbon, be used to measure the method for the setting of predraft, wherein the ratio of the peripheral speed of the middle lower roll of drafting system and inlet lower roll is variable, and by means of the ribbon that stretches, can note the measured value that characterizes qualitative character, thereby can draw the strip number variation, it is characterized in that, determine the measured value of strip number variation and the function between the predraft value, go out measured value by two line reflections that approach, the intersection point of straight line is used for setting up best predraft.
2. in accordance with the method for claim 1, it is characterized in that the measured value of described sign qualitative character is the thickness deviation.
3. in accordance with the method for claim 2, it is characterized in that the thickness measured value is converted into the signal of telecommunication.
4. in accordance with the method for claim 2, it is characterized in that, determine the strip number variation from the thickness deviation.
5. according to each described method of claim 2 to 4, it is characterized in that thickness deviation or strip number variation are by on-line determination.
6. according to each described method of claim 1 to 4, it is characterized in that the strip number variation is corresponding to certain predraft.
7. in accordance with the method for claim 6, it is characterized in that the corresponding relation of strip number variation and certain predraft calculates by a computer.
8. in accordance with the method for claim 6, it is characterized in that the corresponding relation of strip number variation and certain predraft can show with form.
9. in accordance with the method for claim 6, it is characterized in that the corresponding relation available chart of strip number variation and certain predraft shows.
10. in accordance with the method for claim 1, it is characterized in that the intersection point of two straight lines is represented such predraft, that is, this moment fibrous material (5
I) curl and just to be drawn out or stretching.
11. in accordance with the method for claim 10, it is characterized in that one of these two straight-line pass are calculated function and automatically approached.
12. in accordance with the method for claim 10, it is characterized in that the intersection point of two straight lines is automatically determined.
13. each the described method according to claim 10 to 12 is characterized in that, best predraft is near a constant place two straight-line intersections.
14. in accordance with the method for claim 1, it is characterized in that the mensuration of best predraft automatically realizes.
15. in accordance with the method for claim 1, it is characterized in that the setting of best predraft automatically realizes.
16. on the autoleveller gill box of ribbon, be used to measure the device of the setting of predraft, wherein the ratio of the peripheral speed of the middle lower roll of drafting system and inlet lower roll is variable, outlet at neat and well spaced gill box is provided with a ribbon funnel (17) that has thickness measurement mechanism (25), in order to the fiber thickness measured value is noted when the stretch fiber strip, measured value by the thickness deviation calculates the strip number variation, it is characterized in that, one Electronic Control and adjusting device (26) are set, determine the measured value of strip number variation and the function between the predraft value by this control and adjusting device, described measured value is to calculate and/or express with diagrammatic form by two straight lines that approach, and the intersection point of two straight lines is used for setting up best predraft.
17., it is characterized in that described thickness measurement mechanism is the ligulate detector according to the described device of claim 16.
18., it is characterized in that described control and adjusting device are microcomputer according to the described device of claim 16.
19., it is characterized in that ribbon thickness measurement mechanism is connected on Electronic Control and the adjusting device (26) according to the described device of claim 16, in this control and adjusting device, calculate the strip number variation by the measured value of thickness deviation.
20., it is characterized in that the setting device (29) that is used for predraft is connected Electronic Control and adjusting device (26) according to the described device of claim 16.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10107281.3 | 2001-02-16 | ||
| DE10107281 | 2001-02-16 | ||
| DE10162312A DE10162312B4 (en) | 2001-02-16 | 2001-12-19 | Device on a regulating line for slivers for determining setting values for the pre-delay |
| DE10162312.7 | 2001-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1370871A CN1370871A (en) | 2002-09-25 |
| CN1287019C true CN1287019C (en) | 2006-11-29 |
Family
ID=26008519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02104581.XA Expired - Fee Related CN1287019C (en) | 2001-02-16 | 2002-02-08 | Measurer of pre-stretching set value in automatic fiber top-regulating gill box |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP4108989B2 (en) |
| CN (1) | CN1287019C (en) |
| CH (1) | CH695618A5 (en) |
| FR (1) | FR2821090B1 (en) |
| IT (1) | ITMI20020246A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004017441B4 (en) * | 2004-04-08 | 2011-09-01 | Rieter Ingolstadt Gmbh | Process for fiber composite separation and spinning preparation machine |
| DE102005049436A1 (en) * | 2005-10-15 | 2007-04-19 | Saurer Gmbh & Co. Kg | Method for operating a textile machine |
| JP2014009422A (en) * | 2012-06-29 | 2014-01-20 | Murata Mach Ltd | Textile machine and method for detecting cyclic unevenness in textile machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE19822886B4 (en) * | 1997-07-01 | 2007-03-29 | TRüTZSCHLER GMBH & CO. KG | Regulierstreckwerk for a fiber structure, z. As cotton, chemical fibers o. The like. With at least one default field |
-
2002
- 2002-02-08 CN CN02104581.XA patent/CN1287019C/en not_active Expired - Fee Related
- 2002-02-11 CH CH00228/02A patent/CH695618A5/en not_active IP Right Cessation
- 2002-02-11 IT IT2002MI000246A patent/ITMI20020246A1/en unknown
- 2002-02-14 JP JP2002036281A patent/JP4108989B2/en not_active Expired - Fee Related
- 2002-02-15 FR FR0201906A patent/FR2821090B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1370871A (en) | 2002-09-25 |
| JP2002249932A (en) | 2002-09-06 |
| JP4108989B2 (en) | 2008-06-25 |
| ITMI20020246A1 (en) | 2003-08-11 |
| FR2821090A1 (en) | 2002-08-23 |
| ITMI20020246A0 (en) | 2002-02-11 |
| FR2821090B1 (en) | 2004-10-29 |
| CH695618A5 (en) | 2006-07-14 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20200208 |