CN100387764C - Sliver transvers section measuring device, member of said device and spinning frame - Google Patents
Sliver transvers section measuring device, member of said device and spinning frame Download PDFInfo
- Publication number
- CN100387764C CN100387764C CNB031453171A CN03145317A CN100387764C CN 100387764 C CN100387764 C CN 100387764C CN B031453171 A CNB031453171 A CN B031453171A CN 03145317 A CN03145317 A CN 03145317A CN 100387764 C CN100387764 C CN 100387764C
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- Prior art keywords
- measuring device
- sensor
- sliver transvers
- transvers section
- section measuring
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- 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
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
- D01G31/006—On-line measurement and recording of process and product parameters
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- 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
Abstract
A spinning preparation machine includes a drafting device for drafting at least one fiber sliver. The machine includes a microwave sliver thickness sensor through which the fiber sliver is guided, the sensor disposed at the inlet or outlet, or both, of the drafting device and includes at least one cavity resonator defined by a resonator wall. A device or system is incorporated with the sensor for minimizing temperature-conditioned deformations of the resonator during measurement of sliver thickness.
Description
Technical field
The present invention relates to spinning machine a kind of spinning machine or that have drafting system, the particularly sliver transvers section measuring device of carding machine or drawing frame, be used to measure the sliver transvers section of at least one ribbon.The invention still further relates to the member of a this sliver transvers section measuring device.At last, the invention still further relates to the spinning machine with drafting system, particularly carding machine or drawing frame.
Background technology
Be to obtain spinning material as far as possible uniformly to spinning machine such as carding machine (Karden) or drawing frame (Strecken) requirement at the corresponding mechanical port of export.For this reason, spinning machine has adjustable drafting system usually, so that by the sliver transvers section deviation of measuring before drafting system, according to the drafting unit of measured Deviation Control setting before and after the bar traffic direction.The roller that these drafting units for example are provided with by a plurality of front and back is to constituting, betwixt along so-called jaw line (Klemmlinie) gripping fibers bar.Because roller is to having different increase peripheral speeds at the bar traffic direction, the fibre matting that is made of one or more ribbon is by drafting, and is uniform.In order in the adjusting of sealing circulation, to form response or to control its uniformity, count under the deviation situation at excessive bar in case of necessity and shut down, to this as a rule, second transvers section measuring device is set at the output of drafting system.
Though it is known being used for the detector bar cross section by the possible detection method of difference, yet, the general mechanical detection means that adopts, for example Lv Te drawing frame RSB-D30 has a pair of detection dish with parallel axes, one of them detection dish fixed-site and another detection dish constitutes movablely.The detection dish of fixed-site has a circumferential groove, and movable detection dish has the circumference side ring, it rotates in circumferential groove, and its ribbon passes its circumferential groove and rotates gap between the circumference side ring of detection dish, and movable detection packing is offset according to the material deviation of ribbon.The distance of the corresponding change of detection dish is positioned at the surface of detecting disc-supported motion parts and obtains with respect to the distance of the inductive pick-up of fixed clamp by measurement, its signal of sensor is by the right processing unit processes of control drafting system roller.
The shortcoming of its well known device is: the uncontrollable expansion of each member of sliver transvers section measuring device has changed the distance between described surface and the sensor, rather than the strip material deviation changes the distance of detection dish.Thus, can change the electrical output signal of sensor equally, and think by mistake because the bar measured deviation has changed the distance of detection dish.This can cause instantaneous sliver transvers section mistake indication, can make the arresting stop of spinning machine carry out irrational shut-down operation like this.Particularly the measured value of strip thickness deviation directly turns round at the spinning machine height, and is for example after two hours, obviously different than the uniform bar thickness of reality.Corresponding problem also is present in the sliver transvers section measuring device based on other measuring principle.Microwave remote sensor for example.
Summary of the invention
The technical problem to be solved in the present invention is to improve the certainty of measurement of sliver transvers section measuring device.
Described error when as can be seen, the expansion of the main temperature influence of measurement mechanism member can the reflected measurement sliver transvers section.Need determine after spinning machine starts one hour the rising situation of temperature thus especially.The measured value of strip thickness deviation is directly in the high running of spinning machine, and is for example after two hours, obviously different than the uniform bar thickness of reality.The invention solves consequent problem.
The advantage of first aspect present invention particularly in, by the detection system temperature or detect reflection sliver transvers section measuring device member temperature influence expansion size and detect error by compensation arrangement compensation of the present invention and can realize the high precision of sliver transvers section assessment and property over time thereof.Expansion or detected temperatures in order to detect temperature influence exist direct relation between their size, and the present invention adopts the checkout gear of corresponding formation with it, and for example it connects by resistance measurement and respective members and/or temperature on every side.Simultaneously, measured resistance and temperature are proportional.What can replace is the induction variation of measuring temperature influence by induction coil.For example adopt known PT100 in another modification, measuring system is determined the temperature of position.Certainly, also can use a plurality of checkout gears of identical or different type at the diverse location of system.
In order to revise the signal of sensor of sliver transvers section measuring device at least, the present invention is provided with an amending unit, and it is the part of compensation arrangement of the present invention.This amending unit can comprise analog circuit and/or processing unit, wherein preferably by electricity correction factor or one or more correction function storage and that can access, can assess the correction output signal with processes sensor at least.
In a preferred amending unit by analog circuit generation effect, the output of its checkout gear is connected with the input of correction circuit, and wherein circuit constitutes like this: signal of sensor is revised according to the correction factor of measuring in advance according to experience at least.By the output voltage signal formation checkout gear temperature of measurement detecting sensor under preferred a plurality of constant detection dishes distances or the function of resistance, obtain at least one correction factor of preparatory stage.Under the simplest situation, under different temperature, determine two measurement points respectively, and obtain straight line by these two voltage measurement point.Slope by determined straight line also preferably draws an average straight line by each straight line and obtains correction factor.Obtain the value that depends on temperature of sensor output voltage by this way.If just measure, just do not need above-mentioned average at voltage-temperature-curve of determining detection dish distance.
In addition, obtain by circuit engineering by the curve that forms more than two measurement points and its signal of sensor according to the error correction that produces by system's thermal expansion.For example, possible is, the measurement curve that is formed by three or more measurement point is by straight line or other approximation to function (" adaptive ") and obtain correction factor by calculating thus.
Particularly when adopting processing unit, also to revise complicated voltage-temperature-curve exactly.Owing to can not can only adopt extrapolation to obtain one or more characteristic curve or correction function with the approximate above-mentioned curve of straight line by one or more voltage-temperature-curve.Its correction function preferably deposits in the electrical storage of being read by processing unit, so that by the uncorrected sensor output signal of correction function correction.In a simple modification, each correction factor can be deposited in the memory, signal of sensor is revised being used for.Equally also possible is that a plurality of correction functions are stored in one or more memories, other parameter during with consideration temperature and expansion compensation.
In an advantageous variant, sliver transvers section measuring device of the present invention is made of the detection dish of a fixed-site and movable detection dish.Its movable detection packing is offset according to passing the cross section deviation of at least one ribbon, and wherein its skew is detected by the inductive pick-up of fixed-site.Also can adopt other noncontacting proximity sensor, for example based on the sensor of photo measure principle.
In an optional embodiment, sliver transvers section measuring device comprises a movable contact tongue spare (Tastzunge) and the apparent surface of a fixed-site at least, pass at least one ribbon betwixt, the contact tongue spare that compresses a ribbon at least that it is movable is offset according to its material deviation.
Second aspect present invention is characterised in that the member of its transvers section measuring device is local at least to be made by the little steel of thermal expansion.Steel thermal expansion under common operating temperature is the about 1/5 of the steel thermal expansion used for this purpose of habitual spinning machine, is preferably about 1/10.By technical scheme of the present invention, the expansion of its sliver transvers section measuring device member is reduced like this, promptly changes the described distance of measuring between surface and the inductive pick-up when temperature influence hardly.By this way, reduce effectively because the measure error that the expansion of Temperature Influence and the member that brings thus causes.
In a preferred embodiment, the steel of member of the present invention is the Ni36 steel, and the nickel composition of its steel is about 35-37% and contains a small amount of other metal and carbon.The swell value of this steel in the time of 20 ℃ is about zero.This steel for example is commonly referred to as
Steel (
-Stahl).Other corresponding steel has other commercial title.The characteristics of its Ni36 steel be have negligible thermal expansion and it than ceramic phase to flexible, promptly it does not enbrittle and is subject to thus and resists.Particularly this steel is suitable for the material as the measurement dish of sliver transvers section measuring device.Can find out thus that also the suitable member of all sliver transvers section measuring devices can be made by Ni36 steel or similar steel.
In the above-mentioned embodiment, comprise contact tongue spare and an apparent surface's sliver transvers section measuring device at least, it can use the similar steel that has the little steel of thermal expansion and preferred especially Ni36 steel or be in same above-mentioned reason equally.
Also can use microwave remote sensor according to a second aspect of the invention, it can be in employed arrival end and/or port of export detector bar protonatomic mass or strip thickness and/or strip humidity with spinning machine of drafting system.This sensor has cavity resonator, by its guiding fibrous material.Analyze by the tranmitting frequency detection resonance signal of change microwave and according to frequency change and half breadth.Determine its humidity and strip thickness from these values.For the production type of spinning machine, relative with the temperature on the spinning machine less in spinning machine, and increase in time.Particularly because the friction of spinning machine electrode and other moving component and ribbon can cause that in the heat diffusion of cavity resonator entrance and exit temperature raises, this can cause the distortion of cavity resonance wall.The change of this resonator geometry can cause the variation (when the ribbon cross section is constant) of resonant frequency and produce the measured value error thus or influence certainty of measurement.
Make by thermal expansion little steel and particularly Ni36 steel by local at least resonator walls, can obviously improve certainty of measurement.The advantage of selecting like this to bring is, the contraction of temperature deviation and expansion and resonator walls can be controlled in the little scope.No matter spinning machine be just started or its variation that works long hours not obvious.
If the material that uses, can hinder the measurement of the formation of resonance or resonant frequency only at resonator walls and in the buffering of sensor cavities medium frequency, its inwall can be provided with conductive layer, the thickness of this layer for example can be 5 μ m.
The present invention comprises a kind of spinning machine with drafting system equally, particularly carding machine or drawing frame use the member that has the sliver transvers section measuring device that little expansion steel makes at least to carry out the temperature-compensating or the correction of sliver transvers section measuring device sensor output signal according to a first aspect of the invention and/or according to second aspect.
With reference to the accompanying drawings the present invention is further described.
Description of drawings
Fig. 1 shows the schematic diagram of prior art drawing frame embodiment;
Fig. 2 shows has the drawing frame that compensation arrangement of the present invention is set before drafting system and afterwards;
Fig. 3 shows the sliver transvers section measuring device with processing unit compensation arrangement;
Fig. 4 shows the sliver transvers section measuring device with simulation correction circuit compensation arrangement.
The specific embodiment
According to Fig. 1 for example basic functional principle of spinning machine drawing frame is described below.According to the example of prior art, many untwisted drawing frame ribbon FB quilts arranged side by side feed.Same possible is only to import a ribbon FB to drawing frame.The input of drawing frame is provided with the head of the trumpet 12 of a compacting fiber bar FB.Also can adopt other compaction apparatus.Also will further describe below through the checkout gear 2,3 as sliver transvers section measuring device 1 part, the compacting fiber bar FB ' that is made up of many single ribbon FB sends into a drafting system 4, and it has formed the core of drawing frame.Its drafting system 4 generally comprise three drafting units or roller right, carry out actual drawing-off betwixt.They be the input roller to 5a, 5b, middle roller is to 6a, 6b and output or supply with roller to 7a, 7b, their rotate with the peripheral speed that increases successively.By roller to different peripheral speeds, its ribbon FB ' according to peripheral speed than drafted.The input roller has formed so-called preliminary draft district to 5a, 5b and middle roller to 6a, 6b, and middle roller has formed main drawing area to 6a, 6b and supply roller to 7a, 7b.For nonadjustable drawing frame, in drafting process, its preliminary draft is identical with dominant draft.On the contrary, for adjustable drawing frame, highly regulate by changing drawing-off.In adjustable drafting system, can change preliminary draft or dominant draft, but generally select dominant draft.Its reason is that it is big that the main drafting ratio preliminary draft is wanted, so that can regulate accurately.
Usually at the additional depression bar 8 that is provided with of main drawing area, it its ribbon FB ' is turned to and improve thus fiber particularly be not clamped in two rollers between the guiding of fiber (the so-called fiber that floats).Through the ribbon FB ' of drawing-off by turn to top roller 9 and fiber head of the trumpet 10 assemble and by calender roller to (Kalanderwalzenpaar) 13,14 and the bar pipe 16 that rotates with speed V
LFall into bar tube 18, its pipe 16 is arranged on the rolling disc 17 that rotates with angular velocity omega.
For balance strip material deviation on adjustable drawing frame, the ribbon of its feeding passes usually and is arranged on drafting system 4 checkout gear 2,3 before, and it is made of two detection dishes 2,3 in illustrated embodiment.Its checkout gear the 2, the 3rd, the parts of sliver transvers section measuring device.Its detection is coiled 2 fixed-site and is had circumferential groove, moves in its circumferential groove perpendicular to the circumferential ring of the detection dish 3 that is offset of rotating shaft.Guiding ribbon FB ' between its circumferential groove and circumferential ring.Because detection dish 3 is pressed on the detection dish 2 by pressure, can coil the size that 3 skew obtains ribbon FB ' cross section by detection.In known embodiment, an its detection dish 3 and an inductive pick-up (with reference to following Fig. 3 and Fig. 4) idol connects, its signal of sensor is the form of voltage signal, it at first is transported to memory 21, then be transported to evaluation regulon 22 again according to its time difference, wherein memory (FIFO memory, i.e. push-up storage) can will checkout gear 2,3 pass and drafting system 4 between path difference and time difference count.Its measuring-signal then is temporarily stored in memory 21, to this its evaluation regulon 22 according to the rules time or regulate by the return path that ribbon FB ' limits, by roller in the middle of changing to the peripheral speed of 6a, 6b with change the input roller in case of necessity the peripheral speed of 5a, 5b is compensated its material deviation (referring to the direction of arrow).In this case, be implemented in the compensation of main drawing area material deviation, the adjusting rotating speed of its servo drive control planetary gear mechanism 24 by the rotating speed that changes servo drive 23.Drive the input roller to 5a, 5b and middle roller bottom roll 5a, 6a with the controlled output speed of the planetary gear mechanism 24 that drives by main motor 25 to 6a, 6b.Is Chang Su by main motor-driven supply roller to the rotating speed of the bottom roll 7a of 7a, 7b, has guaranteed accurate estimation output.
Figure 2 illustrates compensation arrangement 40 of the present invention, be used to compensate because the expansion of its sliver transvers section measuring device 1 member of Temperature Influence.Owing to shut down for a long time, in drawing frame work, particularly produce temperature difference after starting a period of time at machinery.The condition that reduces initial temperature is that when machinery reached operating temperature, its sliver transvers section measuring device member 1 was very little in its expansion after a period of time.On identical cross section, can on sensor 20, produce different output signals for different temperature, can produce measure error like this.Compensation arrangement 40 of the present invention can be eliminated its measure error.Second compensation arrangement 41 that is added is described below.
According to the embodiment of Fig. 2, its compensation arrangement 40 comprises two checkout gears 30,30 ', and for example they are made of temperature sensor (for example PT100).Its temperature sensor 30 detects the temperature of detection dish 3, and temperature sensor 30 ' detects the temperature of sensor 20.In the two temperatures sensor 30,30 ' one also can be set selectively.Can also on another member of sliver transvers section measuring device 1, one or more checkout gears be set.Other may for, adopt the measurement mechanism of the environment temperature of detector bar transvers section measuring device 1.
According to the described embodiment of Fig. 2, its evaluation regulon 22 temperature sensor 30,30 ' measured value, its evaluation regulon read out in the correction factor of storage in the electronic memory 31 or correction function and revise according to temperature sensor 30,30 ' measured value or according to the output signal of sensor 20.Promptly when the mutual distance of detection dish 2,3 is constant, the output signal that detects the sensor 20 under the different temperatures obtains correction factor or correction function in advance by simple mode.The measurement point that obtains when detection dish constant distance is preferably approximate by a function (for example linear function).Form its correction function by this function, it provided under relevant temperature and the respective sensor output signal under the corresponding correction value that is used to revise real output signal.According to the embodiment of Fig. 2, its correction is finished in evaluation regulon 22.
Under complicated situation, to carry out series of voltage-temperature survey for constant distance a plurality of, that differ from one another, with its measured value that records of direct correction or revise corresponding curve of approximation each other.
In Fig. 3, accurately show described situation, wherein show detection dish distance and the relation between the signal that produces on the sensor 20 according to Fig. 2.In this embodiment, its detection dish 3 is connected with the balance staff 51 of 52 swings around the shaft.One 53 of its balance staff 51 supporting, supporting one bar 54 in motion ground has a bearing-surface 19 in the end of its bar 54 thereon, and it and sensor 20 are oppositely arranged.The other end of bar 54 is connected with a piston 55, and this piston can move back and forth in cylinder chamber 56.Compression spring 57 with known spring characteristic curve affacts on its piston 55.Its piston 55 is connected with a controlled Pressure generator 59, this Pressure generator is through tube connector 58 such pressure of regulating in the cylinder chamber 56, the pressure in the cylinder chamber 56 makes that promptly the pressure of generation becomes slowly in the cylinder chamber 56 relevant with detecting roller 3 and piston 55, so that can remain on a substantially invariable value.
The output signal of sensor 20 produces like this, promptly because the deviation that causes of one or more detected ribbon, makes detection dish 3 change distance between bearing-surface 19 and the sensor 21 by balance staff 51 the effect on the bar 54 of being hinged on.Thus, change the output voltage of sensor 20.Its sensor 20 also can change for example optical sensor into.
According to Fig. 2, measure (in this case only on the detection dish 2) on the detection dish and/or sensor 20 on temperature.Employed here temperature sensor 30,30 ' measured value are sent to evaluation processing unit 22 (seeing the embodiment of Fig. 2).In a simplified embodiment, only on the detection dish 2,3 or on the sensor 20 or the temperature sensor that temperature sensor is set or is provided for measures ambient temperature on other the member.
Figure 4 illustrates and replace compensation arrangement 41, the explanation that wherein produces transducing signal is referring to Fig. 3.In the embodiment shown in fig. 4, replace a checkout gear 130 is set, it and detection dish 2 idols connect.Its idol for example connects and can constitute like this, and the little metalwork in the inductance coil of insertion checkout gear 130 is connected with detection dish 2.The output signal of checkout gear 130 should change according to the expansion phase of the temperature at that time on the detection dish 2 according to detection dish 2.The output signal of checkout gear 130 is passed to simulation correction circuit 25, and to this, it receives the output signal of sensor 20.Its simulation correction circuit 25 constitutes like this: promptly it is according to the output signal correction output signal 20 of checkout gear 130, thereby compensates the temperature variant expansion of sliver transvers section measuring device 1 respective members.Simultaneously, when compensation, can also write down the size of sensor 20 output signals, for example, if the output signal corresponding to little sliver transvers section is smaller,, for example at high temperature revised more consumingly than its output signal 20 at low temperatures by simulation correction circuit 25, like this, the expansion of respective members diminishes.The error of the relative temperature influence of sensor 20 when little sliver transvers section than big when the big sliver transvers section, so that under latter instance, carry out less correction.
The output signal of correction circuit 25 then is input to evaluation regulon 22 by FIFO memory 21, and processed in known manner there.
Be not limited in the accurate formation of each sensor and electric unit by the described embodiment of the present invention of accompanying drawing, for example, in the embodiment of Fig. 4 signal, the correction of output signal also can be carried out after memory 21.
Can also after producing error, the sensor output signal temperature influence use compensation of the present invention in the sliver transvers section measuring device after the drafting system 4 in being arranged at Fig. 2.This sliver transvers section measuring device 11 for example comprises calender roller 13,14, wherein overcomes the elastic force skew of spring 15 according to first roller shown in Figure 2.Transmit signals by unshowned to sensor 220, its output signal is used further to the measurement of sliver transvers section, so that guarantee bar numerical value up to specification especially and shut down when passing deviation.The present invention here can also compensate the error of temperature influence.As shown in Figure 2, be delivered in the simulation correction circuit 226 by the temperature on a temperature sensor 230 detecting sensors 220 and with the measuring-signal of temperature sensor 230 and sensor 220.In its simulation correction circuit 226, can revise its output signal according to the error of corresponding temperature influence by the one or more voltage-temperature that records in advance-curve or voltage-resistance-curve.At this, its correction value is big during than big skew when calender roller 13 little skews, wherein since the relative error that the expansion that the member temperature influence produces causes diminish.
In second inventive concept, the member of sliver transvers section measuring device is made by the little steel of thermal expansion at least.Preferred steel this be the Ni36 steel (for example
) or corresponding steel, its temperature expansion coefficient is less, makes that the error that causes owing to expanding is as much as possible little and continues to employ the sliver transvers section measuring device with compensation arrangement of the present invention.Advantageously, its detection dish 2,3 and/or calender roller 13,14 are made by the little steel of thermal expansion.Replace or additional be that for example bar 54, balance staff 51 and/or bearing-surface 91 (seeing Fig. 3 and 4) are made by such steel for the member of corresponding sliver transvers section measuring device 1,11.
In unshowned embodiment, one or more resonator walls of microwave resonator are local at least to be made by the little steel of thermal expansion.
The present invention is used in particular in drawing frame or the carding machine, but is not limited thereto.
Claims (25)
1. sliver transvers section measuring device (1, a 11) spinning machine or that have the spinning machine of drafting system (4), has sensor (20,220), its output signal reflects the size of at least one ribbon (FB, FB ') cross section, it is characterized in that: a compensation arrangement (40,41) is used to compensate the expansion of sliver transvers section measuring device (1, the 11) member of output signal temperature influence, that influence sensor (20,220).
2. measurement mechanism as claimed in claim 1 is characterized in that: its compensation arrangement (40,41) comprises checkout gear (30,30 '; 130), be used for detecting the size of reflection sensor environment and/or sensor (20,220) temperature.
3. measurement mechanism as claimed in claim 2 is characterized in that: its measurement mechanism (30,30 '; 130) comprise thermal element, resistance unit, induction coil, be subjected to induction coil.
4. as the measurement mechanism of one of above-mentioned claim, it is characterized in that: its compensation arrangement (40,41) comprises that one is used to revise the amending unit (22,31 of sensor (20,220) output signal; 126; 226).
5. measurement mechanism as claimed in claim 4 is characterized in that: the amending unit (22,31 that is used to revise sensor (20,220) output signal; 126; 226) constitute by at least one correction factor measured in advance or correction function that at least one is measured in advance.
6. measurement mechanism as claimed in claim 4 is characterized in that: its amending unit (22,31; 126; 226) comprise analog electrical correction circuit (126; 226).
7. measurement mechanism as claimed in claim 4 is characterized in that: its amending unit (22,31; 126; 226) comprise a processing unit (22) and an electronic memory module (31).
8. measurement mechanism as claimed in claim 7 is characterized in that: its processing unit (22) can handle in memory (31) correction factor of storage at least or the correction function (characteristic curve) in memory (31), stored at least so that revise described output signal.
9. measurement mechanism as claimed in claim 8 is characterized in that: at least correction factor or at least the correction function curve of deriving by two or more voltage of rule of thumb measuring in advance one temperature correlation measured values obtain, wherein by sensor (20; 220) voltage value that output voltage obtains comprises the sensor (20 that expands and cause owing to described member; 220) error.
10. as the measurement mechanism of above-mentioned claim 1, it is characterized in that: comprise a fixed-site and movable detection dish (2,3; 13,14), pass at least one ribbon (FB, FB ') betwixt, the detection dish (3 that it is movable; 14) be offset according to the material deviation of passing at least one ribbon (FB, FB ').
11. the measurement mechanism as claim 10 is characterized in that: movable detection dish (3) connects with bearing-surface (19) idol, and this bearing-surface is arranged on the fixing inductive pick-up (20 in position; 220) opposite.
12. measurement mechanism as claimed in claim 1, it is characterized in that: the apparent surface who comprises a movable contact tongue spare and a fixed-site at least, pass at least one ribbon (FB, FB ') betwixt, its movable contact tongue spare is offset according to the material deviation of passing at least one ribbon (FB, FB ').
13. the measurement mechanism as claim 10 is characterized in that: at selected a plurality of different constant detection dishes (2,3; 13,14) measure voltage or the voltage error that depends on temperature under the condition of distance, and obtain average correction value from the voltage-temperature-function that is obtained.
14. measurement mechanism as claim 12, it is characterized in that: measure the voltage or the voltage error that depend on temperature apart from above-mentioned apparent surface under for the condition of a plurality of different constant distances at selected at least one contact tongue spare, and obtain average correction value from the voltage-temperature-function that is obtained.
15. sliver transvers section measuring device (1, a 11) member spinning machine or that have the spinning machine of drafting system (4) is characterized in that: this sliver transvers section measuring device (1,11) member is local at least to be made by the little steel of thermal expansion.
16. sliver transvers section measuring device (1, the 11) member as claim 15 is characterized in that: the steel thermal expansion under common operating temperature is the about 1/5 of the steel thermal expansion used of habitual spinning machine, is preferably about 1/10.
17. sliver transvers section measuring device (1, the 11) member as claim 16 is characterized in that: steel be the Ni36 steel (for example
Steel) or corresponding steel.
18. sliver transvers section measuring device (1, the 11) member as one of claim 15-17 is characterized in that: comprise a fixed-site and movable detection dish (2,3; 13,14), pass at least one ribbon (FB, FB ') betwixt, the detection dish (3 that it is movable; 14) be offset according to the material deviation of passing at least one ribbon (FB, FB ').
19. sliver transvers section measuring device (1,11) member as one of claim 15-17, it is characterized in that: the apparent surface who comprises a movable contact tongue spare and/or a fixed-site at least, pass at least one ribbon (FB, FB ') betwixt, its movable contact tongue spare is offset according to the material deviation of passing at least one ribbon (FB, FB ').
20. sliver transvers section measuring device (1, the 11) member as one of claim 15-17 is characterized in that: its local at least resonance wall by microwave resonator constitutes.
21. sliver transvers section measuring device (1, a 11) spinning machine or that have the spinning machine of drafting system (4), has sensor (20,220), its output signal reflects the size of at least one ribbon (FB, FB ') sliver transvers section, it is characterized in that: comprise at least according to one of claim 15-20 by having the sliver transvers section measuring device member that little expansion steel is made.
22. the measurement mechanism as claim 21 is characterized in that: it comprises microwave remote sensor.
23. the spinning machine with drafting system has the sliver transvers section measuring device (1 according to one of claim 1-13; 11) and/or according to the sliver transvers section measuring device (1 of claim 21 or 22; 11).
24. the spinning machine as claim 23 is characterized in that: at least one sliver transvers section measuring device (1) is arranged on drafting system (4) before.
25. the spinning machine as claim 23 is characterized in that: at least one sliver transvers section measuring device (11) is arranged on drafting system (4) afterwards.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10230434 | 2002-07-06 | ||
| DE10230434.3 | 2002-07-06 | ||
| DE10248322 | 2002-10-16 | ||
| DE10248322.1 | 2002-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473971A CN1473971A (en) | 2004-02-11 |
| CN100387764C true CN100387764C (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031453171A Expired - Fee Related CN100387764C (en) | 2002-07-06 | 2003-07-03 | Sliver transvers section measuring device, member of said device and spinning frame |
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| Country | Link |
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| CN (1) | CN100387764C (en) |
| DE (1) | DE10327469B4 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005006273A1 (en) | 2004-04-21 | 2005-11-10 | Trützschler GmbH & Co KG | Apparatus for solidifying a recoverable fibrous web, z. As cotton, chemical fibers o. The like. |
| DE102005033180B4 (en) * | 2005-07-13 | 2020-03-12 | Trützschler GmbH & Co Kommanditgesellschaft | Device for detecting a parameter on a plurality of fiber bands fed to a drafting system of a spinning machine |
| CN104930997A (en) * | 2015-06-28 | 2015-09-23 | 无锡锡洲电磁线有限公司 | Enameled flat wire online detection device |
| CN108796733B (en) * | 2018-06-28 | 2020-12-15 | 永安市日发纺织有限公司 | Production process of irregular slub yarn |
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|---|---|---|---|---|
| US5943740A (en) * | 1996-04-02 | 1999-08-31 | Rieter Machine Works, Ltd. | Combing machine with an autoleveller drafting arrangement |
| US6223609B1 (en) * | 1998-11-18 | 2001-05-01 | TRüTZSCHLER GMBH & CO. KG | Apparatus for measuring the thickness and/or irregularities of a running sliver |
| US6286188B1 (en) * | 1997-09-01 | 2001-09-11 | Maschinenfabrik Rieter Ag | Regulated drawing frame |
| CN1319688A (en) * | 2000-02-03 | 2001-10-31 | 特鲁菲舍尔股份有限公司及两合公司 | Apparatus for leading fibre strip into spinning frame |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0192835B1 (en) * | 1985-02-15 | 1989-04-26 | Maschinenfabrik Rieter Ag | Apparatus for the continuous mass control of a fibre ribbon |
| CH668833A5 (en) * | 1986-01-16 | 1989-01-31 | Zellweger Uster Ag | DEVICE FOR MEASURING AND / OR COMPARISONING THE TAPE THICKNESS OF FIBER TAPES. |
| DE4012551C1 (en) * | 1990-04-19 | 1991-06-27 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt, De | |
| JPH0913237A (en) * | 1995-06-29 | 1997-01-14 | Zellweger Luwa Ag | Apparatus for obtaining thickness or unevenness of sliver |
-
2003
- 2003-06-18 DE DE10327469.3A patent/DE10327469B4/en not_active Expired - Fee Related
- 2003-07-03 CN CNB031453171A patent/CN100387764C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5943740A (en) * | 1996-04-02 | 1999-08-31 | Rieter Machine Works, Ltd. | Combing machine with an autoleveller drafting arrangement |
| US6286188B1 (en) * | 1997-09-01 | 2001-09-11 | Maschinenfabrik Rieter Ag | Regulated drawing frame |
| US6223609B1 (en) * | 1998-11-18 | 2001-05-01 | TRüTZSCHLER GMBH & CO. KG | Apparatus for measuring the thickness and/or irregularities of a running sliver |
| CN1319688A (en) * | 2000-02-03 | 2001-10-31 | 特鲁菲舍尔股份有限公司及两合公司 | Apparatus for leading fibre strip into spinning frame |
Non-Patent Citations (2)
| Title |
|---|
| 开环式自调匀整并条机. 陈安磐.纺织设备，第5期. 1998 |
| 开环式自调匀整并条机. 陈安磐.纺织设备，第5期. 1998 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10327469B4 (en) | 2016-03-10 |
| DE10327469A1 (en) | 2004-01-15 |
| CN1473971A (en) | 2004-02-11 |
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