DE60207776T2 - Improved device for measuring the mechanical thread tension in weaving machines and the like - Google Patents
Improved device for measuring the mechanical thread tension in weaving machines and the like Download PDFInfo
- Publication number
- DE60207776T2 DE60207776T2 DE2002607776 DE60207776T DE60207776T2 DE 60207776 T2 DE60207776 T2 DE 60207776T2 DE 2002607776 DE2002607776 DE 2002607776 DE 60207776 T DE60207776 T DE 60207776T DE 60207776 T2 DE60207776 T2 DE 60207776T2
- Authority
- DE
- Germany
- Prior art keywords
- yarn
- eyelets
- eyelet
- support
- inclination
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/40—Applications of tension indicators
-
- 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
- Force Measurement Appropriate To Specific Purposes (AREA)
- Looms (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Diese Erfindung betrifft eine verbesserte Vorrichtung zum Messen der mechanischen Fadenspannung in Webanlagen und dergleichen, und insbesondere eine Messvorrichtung, die ein analoges Signal proportional zu der mechanischen Spannung erzeugen kann, die auf das überwachte Garn wirkt. Das analoge Signal wird typischerweise als Rückführung in dem Steuerschaltkreis einer Garnabbremsanlage verwendet, um die mechanische Fadenspannung konstant zu halten.These The invention relates to an improved device for measuring the mechanical Thread tension in weaving machines and the like, and in particular a Measuring device that produces an analog signal proportional to the mechanical Can generate tension that acts on the monitored yarn. The analogue Signal is typically used as feedback in the control circuit of Garnabbremsanlage used to the To keep mechanical thread tension constant.
Zum Messen der mechanischen Fadenspannung ist es bekannt, Vorrichtungen mit einem Sensor zu benutzen, der allgemein aus einem Dehnungsmessgerät oder einem piezoelektrischen Sensor besteht und durch das Garn gedrückt wird, das zwischen zwei Fadenführungsösen gespannt wird, die voneinander auf einer geradlinigen Abstützung passend beabstandet sind und zwischen denen der Sensor angeordnet ist (EP-A-0574062).To the Measuring the mechanical thread tension is known devices to use with a sensor, which generally consists of a strain gauge or a piezoelectric sensor and is pushed through the yarn, stretched between two yarn guide eyelets that fits each other on a straight line support are spaced and between which the sensor is arranged (EP-A-0574062).
Wie
aus
Um die mechanische Fadenspannung genau zu messen, muss der Winkel α am Scheitelpunkt des Garnwegs einen vorbestimmten Wert haben, der aus dem tangentialen Kontakt des Garns mit Punkten a und b der Ösen O1–O2 resultiert. Darüber hinaus darf sich dieser Wert während des Betriebs der Vorrichtung nicht ändern, d.h. als Folge einer unerwünschten Verschiebung oder einer fehlerhaften Anordnung, die die Kontaktstelle zwischen dem Garn und den Fadenführungsösen in Richtung der Punkte A und B bewegen und dadurch den Winkel α verändern lässt.Around To accurately measure the mechanical thread tension, the angle α at the vertex must be of the yarn path have a predetermined value from the tangential Contact of the yarn with points a and b of the eyelets O1-O2 results. In addition, allowed this value during Do not change the operation of the device, i. as a result of a undesirable Shift or a faulty arrangement affecting the contact point between the yarn and the yarn guide eyelets in the direction move the points A and B, thereby changing the angle α.
Hauptziel
der vorliegenden Erfindung ist es, die bekannte Vorrichtung aus
Dieses Ziel wird gemäß der vorliegenden Erfindung mittels einer verbesserten Vorrichtung erreicht, die die in den folgenden Ansprüchen definierten Merkmale aufweist.This Target will be in accordance with the present Achieved invention by means of an improved device, the in the following claims having defined features.
Im Wesentlichen basiert diese Erfindung auf dem innovativen Konzept des Neigens – bezüglich der geradlinigen Abstützung – der zwei Fadenführungsösen in entgegengesetzte Richtungen, so dass das Garn diagonal durch das Auge jeder Fadenführungsöse läuft, während es Kontakt mit zwei diametral gegenüberliegenden Punkten der Öse hält, die bezüglich des Zentrums der Öse symmetrisch sind. Die Neigung der Wegsegmente ist vorzugsweise gleich der Neigung der Diagonalen des Auges der entsprechenden Fadenführungsöse, die die Garnkontaktpunkte verbindet.in the Essentially, this invention is based on the innovative concept of leaning - concerning the rectilinear support - the two Thread guide eyelets in opposite Directions so that the yarn runs diagonally through the eye of each eye loop while it is Contact with two diametrically opposite Points of the eyelet that respects the Center of eyelet are symmetrical. The inclination of the path segments is preferably the same the inclination of the diagonal of the eye of the corresponding yarn guide eyelet, the the yarn contact points connects.
Die Eigenschaften, Ziele und Vorteile der verbesserten Vorrichtung gemäß der vorliegenden Erfindung gehen aus der folgenden detaillierten Beschreibung unter Bezugnahme auf die beigefügten Zeichnungen hervor, in denen:The Features, objects and advantages of the improved device according to the present invention go to the following detailed description with reference to the attached drawings in which:
Wie
in
Nach
Betrachtung der Zeichnung der
Um
diesen Nachteil zu umgehen, stellt die vorliegende Erfindung die
in
Durch diese Anordnung wird gemäß dem angegebenen Ziel in den Spannweiten zwischen dem Sensor S' und den zwei Fadenführungsösen eine vorbestimmte, konstante Neigung α zwischen Wegsegmenten T1–T2 erreicht, unabhängig von den eingehenden und ausgehenden Richtungen des Garns stromaufwärts bzw. stromabwärts der Ösen bezüglich der Gleitbewegung des Garns.By this arrangement is according to the specified Target in the spans between the sensor S 'and the two yarn guide eyelets a predetermined, constant Inclination α between Path segments T1-T2 achieved, independently from the incoming and outgoing directions of the yarn upstream or downstream the eyelets in terms of the sliding movement of the yarn.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO010060 | 2001-04-27 | ||
ITTO20010060 ITTO20010060U1 (en) | 2001-04-27 | 2001-04-27 | PERFECTED MECHANICAL DEVICE FOR THE MECHANICAL TENSION OF THE YARN IN WEAVING AND SIMILAR SYSTEMS. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60207776D1 DE60207776D1 (en) | 2006-01-12 |
DE60207776T2 true DE60207776T2 (en) | 2006-08-17 |
Family
ID=11458438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002607776 Expired - Lifetime DE60207776T2 (en) | 2001-04-27 | 2002-04-08 | Improved device for measuring the mechanical thread tension in weaving machines and the like |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1253099B1 (en) |
CN (1) | CN1211649C (en) |
DE (1) | DE60207776T2 (en) |
IT (1) | ITTO20010060U1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2149822B (en) * | 1983-10-08 | 1986-08-20 | Triplite Ltd | Yarn tension device |
US5136202A (en) * | 1990-08-31 | 1992-08-04 | Atochem North America, Inc | Material sensor |
DE4300633A1 (en) * | 1992-01-15 | 1993-07-22 | Barmag Barmer Maschf | Synthetic multifilament yarn prodn. - in which yarn tension measurement is based on the movement of a flat spring in line with the yarn |
NL9201019A (en) * | 1992-06-10 | 1994-01-03 | Te Strake Bv | Apparatus for measuring tensile stresses in thin wires. |
-
2001
- 2001-04-27 IT ITTO20010060 patent/ITTO20010060U1/en unknown
-
2002
- 2002-04-08 EP EP20020007814 patent/EP1253099B1/en not_active Expired - Lifetime
- 2002-04-08 DE DE2002607776 patent/DE60207776T2/en not_active Expired - Lifetime
- 2002-04-26 CN CN 02118583 patent/CN1211649C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1253099A2 (en) | 2002-10-30 |
EP1253099B1 (en) | 2005-12-07 |
CN1211649C (en) | 2005-07-20 |
ITTO20010060U1 (en) | 2002-10-28 |
ITTO20010060V0 (en) | 2001-04-27 |
DE60207776D1 (en) | 2006-01-12 |
EP1253099A3 (en) | 2003-09-17 |
CN1393686A (en) | 2003-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |