CS260729B1 - Pickup of textile threads' tractive force - Google Patents
Pickup of textile threads' tractive force Download PDFInfo
- Publication number
- CS260729B1 CS260729B1 CS872997A CS299787A CS260729B1 CS 260729 B1 CS260729 B1 CS 260729B1 CS 872997 A CS872997 A CS 872997A CS 299787 A CS299787 A CS 299787A CS 260729 B1 CS260729 B1 CS 260729B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- arm lever
- double
- base body
- tensile force
- force sensor
- Prior art date
Links
- 239000004753 textile Substances 0.000 title claims abstract description 14
- 238000013016 damping Methods 0.000 claims description 5
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/106—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a cantilever beam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
- B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
- B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
- B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
- B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
- B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
- B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
- B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
- B65H63/0324—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using photo-electric sensing means, i.e. the defect signal is a variation of light energy
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/105—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using electro-optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
- G01L5/108—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a single support, e.g. a glider
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/50—Diminishing, minimizing or reducing
- B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
- B65H2601/524—Vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Looms (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
Vynález se týká snímače tahové síly textilních nití.The invention relates to a tensile force sensor of textile threads.
Stávající snímače tahových sil textilních nití využívají převodu mechanické síly na elektrický signál, pracují nejčastěji na principu deformace měrného tělesa opatřeného piezoresistivn^ii senzory převádějícími tuto deformaci na elektrický signál, nebo kapacitní snímače, které převádějí výchylku měrného tělíska na změnu elektrické kapacity diferenciálního kondenzátem.Existing tensile force transducers of textile yarns utilize the conversion of mechanical force to electrical signal, most often on the principle of deformation of the measuring body provided with piezoresistive sensors converting this deformation to electrical signal, or capacitive sensors that convert the displacement of the measuring body to change electrical capacity by differential condensate.
Zařízení využívající tyto způsoby jsou dostatečně přesné a stabilní, avšak současně i velice náročné na výběr piezoresistivních čidel, napájecích a: vyhodnocovacích elektrických obvodů, a v případě kapacitního snímače nutnost jeho napájení velkým střídavým napětím o frekvenci v kiloherzové oblasti. Dobrá linearita těchto snímačů, která je žádána u měřicích zařízení je na druhé straně zaplacena vysokou cenou samotného snímače i následného technického vybavení pro zpracování elektrického výstupního signálu. Pro účely regulátorů není požadavek linearity prvořadý a tedy není o-podstatněná finanční náročnost.The devices utilizing these methods are sufficiently accurate and stable, but at the same time very demanding to select piezoresistive sensors, power supply and evaluation electrical circuits, and in the case of a capacitive sensor the need to supply it with a large AC voltage at a frequency in the kiloherz range. On the other hand, the good linearity of these transducers, which is demanded by measuring devices, is paid by the high price of the transducer itself and the subsequent equipment for processing the electrical output signal. For regulators, the linearity requirement is not paramount, and therefore the financial cost is not essential.
Uvedené nedostatky odstraňuje snímač tahové síly textilních nití podle vynálezu. Jeho podstata spočívá v tom, že sestává ze základního těles-а a ze dvojice fotoelektrických prvků, umístěných souose a kolmo ke vzduchové mezeře, vytvořené bočním zářezem do koncové části základního tělesa a do zářezu je umístěn zahnutý konec dvojramenné páky, otočně uložené v základním tělese na čepu a opatřené na vnější straně tlumicím proužkem vyplňujícím mezeru mezi dvojramennou pákou a krytem snímače a na opačném konci vodičem niti, přičemž základní těleso je opatřeno otvorem, kolmým к dvojramenné páce a opatřeném válcovou pružinou, uloženou svým jedním koncem na dvojramennou páku a druhým koncem na stavěči šroub, který je nad ní v tomto otvoru umístěn. V základním tělese může být vedle čepu směrem к dvojici fotoelektrických prvků vytvořen další průchozí otvor, kolmý к dvojramenné páce, v němž je umístěn stavěči doraz dvojramenné páky. Tlumicí proužek může být s výhodou vytvořen z pěnového polyuretanu a může být pevně spojen s dvojramennou pákou.These drawbacks are overcome by the tensile force sensor of the textile threads according to the invention. It consists of a base body -a and a pair of photoelectric elements positioned coaxially and perpendicular to the air gap formed by a side notch in the end portion of the base body, and a notched end of the two-arm lever rotatably mounted in the base body provided with a damping strip on the outside to fill the gap between the two-arm lever and the sensor housing and the other end with a thread guide, the base body having an opening perpendicular to the two-arm lever and provided with a cylindrical spring on the set screw located above it in this hole. In the base body, a further through hole perpendicular to the double-arm lever can be provided in addition to the pin towards the pair of photoelectric elements, in which the adjusting stop of the double-arm lever is located. The cushioning strip may preferably be formed of polyurethane foam and may be rigidly connected to a double-arm lever.
Snímač tahové síly textilních nití podle vynálezu je jednoduchý, nevyžaduje žádné speciální senzory ani napájecí zdroje, seřizovači funkce se omezuje pouze na nastavení istavěcího šroubu s pružinou, případně stavěcího dorazu. Výstupní signál je dostatečně velký, aby mohl přímo řídit výkonový zesilovač.The tensile force sensor of the textile threads according to the invention is simple, does not require any special sensors or power supplies, the adjustment function is limited only to the adjustment of the spring locking screw or adjusting stop. The output signal is large enough to directly control the power amplifier.
Vynález a jeho účinky jsou blíže vysvětleny v popise příkladu jeho provedení podle přiloženého výkresu, kde na obr. 1 je znázorněn v náryse v řezu snímač taho«vé síly textilních nití podle vynálezu a na obr. 2 je znázorněn v axonometrii celkový pohled na zakrytovaný snímač tahové síly textilních nití padle vynálezu.BRIEF DESCRIPTION OF THE DRAWINGS The invention and its effects are explained in more detail in the accompanying drawing, in which: FIG. 1 is a cross-sectional elevational view of a textile yarn force sensor according to the invention; and FIG. tensile forces of textile yarns according to the invention.
V základním tělese 1 je na jednom konci boční zářez 4 tvořící vzduchovou mezeru, do které zasahuje svým zahnutým koncem dvojramenná páka 5, otočná na čepu 7 základního tělesa 1 pomocí čepu 7. Druhý konec páky 5 je opatřen vodičem 6 nitě, například ze slinutého korundu. Mezera mezi dvojramennou pákou 5 a krytem snímače 12 je vyplněna tlumicím proužkem 11 z pěnového polyuretanu.In the base body 1 there is at one end a side gap 4 forming an air gap into which a double-arm lever 5 reaches with its curved end. It is pivotable on the pin 7 of the base body 1 by means of a pin 7. The other end of the lever 5 is provided with a yarn guide 6, for example of sintered corundum . The gap between the two-arm lever 5 and the sensor housing 12 is filled with a foamed polyurethane damping strip 11.
Oba fo-toelektrické prvky 2 a 3, tedy elektroluminiscenční infračervená dioda typu WK 16421 a foto-tranzistor typu KFX 81, jsou umístěny vzájemně souose a kolmo к bočnímu zářezu 4, tedy ke vzduchové mezeře.The two photoelectric elements 2 and 3, the electroluminescence infrared diode of type WK 16421 and the photo-transistor of type KFX 81, are positioned coaxially and perpendicular to the side slot 4, i.e. to the air gap.
V základním tělese 1 je vytvořen otvor 13, kolmý к dvojramenné páce 5, v jehož hladké části je umístěna pružina 8 opřená jedním svým koncem na dvojramennou páku 5 a druhým koncem na nad ní umístěný stavěči šroub 9. Symetricky к čepu 7 je další průchozí otvor 14 kolmý к dvojramenné páce 5, v jehož závitové části je umístěn stavěči doraz 10 tvořený například šroubem. Celek je uzavřen krytem 12.In the base body 1 is formed an opening 13 perpendicular to the double arm 5, in the smooth part of which is located a spring 8 supported by one end on the double arm 5 and the other end on the above set screw 9. 14 is perpendicular to the double-arm lever 5, in the threaded portion of which is an adjusting stop 10 formed, for example, by a screw. The unit is closed by a cover 12.
Funkce snímače tahové síly textilních nití podle vynálezu závisí na modulaci světelného paprsku vycházejícího z fotoelektrického prvku 2, tedy z svítivě infračervené diody přes vzduchovou mezeru částečně zastíněnou ohnutým koncem dvojramenné páky 5 a dopadající na fotoelektrický prvek 3, tedy fototranzistor. Silovým působením niti na vodič 6 niti na jednom ramenu dvojramenné páky 5 ze základní polohy dané stavěcím dorazem 10 a tím к odcloňování paprsku. Dopadem většího světelného toku na fotoelektrický prvek 3, tedy fototranzistor je i jeho výstupní signál větší.The function of the yarn tensile force sensor according to the invention depends on the modulation of the light beam emanating from the photoelectric element 2, i.e. the light-emitting diode, through an air gap partially obscured by the bent end of the two-arm lever 5 and impinging on the photoelectric element 3. By force of the thread on the thread guide 6 on one arm of the double-arm lever 5 from the basic position given by the adjusting stop 10 and thus to deflect the spoke. The impact of a greater luminous flux on the photoelectric element 3, i.e. the phototransistor, is also its output signal greater.
Tímto snímačem tahových sil v textilních nitích je možno zjišťovat síly v rozmezí 5 až 100 cN při výstupním napětí fototranzistoru 3,5 až 4,5 V. Přitom napájecí napětí fototranzistoru je 6 V a napájecí proud fotodiody 45 mA. Vlastní kmity dvojramenné páky 5 jsou utlumeny tlumicím proužkem 11 z pěnového polyuretanu. Snímač může rovněž sloužit jako měrný člen v regulačním obvodu automatické regulační brzdičky textilních nití.With this tensile force sensor in textile threads, it is possible to detect forces in the range of 5 to 100 cN at a phototransistor output voltage of 3.5 to 4.5 V. The phototransistor supply voltage is 6 V and the photodiode supply current is 45 mA. The actual oscillations of the double-arm lever 5 are damped by a foam polyurethane damping strip 11. The sensor can also serve as a measuring member in the control circuit of the automatic textile thread control brake.
Snímač tahové síly textilních nití podle vynálezu je využitelný zejména v obvodech automatických regulátorů tahových sil při zpracovaní nití v textilním průmyslu.The tensile force sensor of textile threads according to the invention is particularly useful in circuits of automatic tensile force regulators in the processing of threads in the textile industry.
Claims (3)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS872997A CS260729B1 (en) | 1987-04-28 | 1987-04-28 | Pickup of textile threads' tractive force |
CH1431/88A CH675772A5 (en) | 1987-04-28 | 1988-04-19 | |
DE3813707A DE3813707A1 (en) | 1987-04-28 | 1988-04-22 | Tensile-force meter for textile threads |
IT20295/88A IT1217187B (en) | 1987-04-28 | 1988-04-22 | TENSILE YARN TRACTION FORCE ANALYZER |
JP63101500A JPS6447926A (en) | 1987-04-28 | 1988-04-26 | Tension force scanner for fiber filament |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS872997A CS260729B1 (en) | 1987-04-28 | 1987-04-28 | Pickup of textile threads' tractive force |
Publications (2)
Publication Number | Publication Date |
---|---|
CS299787A1 CS299787A1 (en) | 1988-05-16 |
CS260729B1 true CS260729B1 (en) | 1989-01-12 |
Family
ID=5368774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS872997A CS260729B1 (en) | 1987-04-28 | 1987-04-28 | Pickup of textile threads' tractive force |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6447926A (en) |
CH (1) | CH675772A5 (en) |
CS (1) | CS260729B1 (en) |
DE (1) | DE3813707A1 (en) |
IT (1) | IT1217187B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3942685A1 (en) * | 1989-12-22 | 1991-06-27 | Rieter Ag Maschf | METHOD FOR OBTAINING A THREAD TENSION SIGNAL AND THREAD SENSOR |
DE4129803A1 (en) * | 1991-09-07 | 1993-03-11 | Schlafhorst & Co W | THREAD STRENGTH SENSOR FOR A TEXTILE MACHINE |
JP2537864Y2 (en) * | 1992-07-31 | 1997-06-04 | 古河電気工業株式会社 | Optical intruder detection device |
DE10259727A1 (en) * | 2002-12-19 | 2004-07-08 | Iropa Ag | Tensiometer |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242579Y2 (en) * | 1971-02-27 | 1977-09-27 |
-
1987
- 1987-04-28 CS CS872997A patent/CS260729B1/en unknown
-
1988
- 1988-04-19 CH CH1431/88A patent/CH675772A5/de not_active IP Right Cessation
- 1988-04-22 IT IT20295/88A patent/IT1217187B/en active
- 1988-04-22 DE DE3813707A patent/DE3813707A1/en not_active Withdrawn
- 1988-04-26 JP JP63101500A patent/JPS6447926A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS6447926A (en) | 1989-02-22 |
IT1217187B (en) | 1990-03-14 |
IT8820295A0 (en) | 1988-04-22 |
CS299787A1 (en) | 1988-05-16 |
CH675772A5 (en) | 1990-10-31 |
DE3813707A1 (en) | 1988-11-17 |
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