EP1100741B1 - Verfahren und vorrichtung zum schneiden von garn auf einer textilmaschine - Google Patents
Verfahren und vorrichtung zum schneiden von garn auf einer textilmaschine Download PDFInfo
- Publication number
- EP1100741B1 EP1100741B1 EP99928989A EP99928989A EP1100741B1 EP 1100741 B1 EP1100741 B1 EP 1100741B1 EP 99928989 A EP99928989 A EP 99928989A EP 99928989 A EP99928989 A EP 99928989A EP 1100741 B1 EP1100741 B1 EP 1100741B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- kinetic energy
- blade
- cutting
- knife
- 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
Images
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
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/71—Arrangements for severing filamentary materials
-
- 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
- B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
- B65H63/062—Electronic slub detector
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/16—Rectilinearly-movable armatures
- H01F7/1607—Armatures entering the winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
- H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
- H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator
Definitions
- the invention relates to a method and an apparatus for cutting yarn on a Textile machine, with a knife, the knife being driven by kinetic energy is supplied (see DE-A-2 132 137).
- Such devices are particularly on textile machines, such as on winding machines arranged. There they are for cutting out errors, such as B. Dickoder Thin spots in the yarn, provided.
- the cutting is done with a movable stored knife that pushes the yarn against a backing and when it is on it rests, severed. To do this, the knife should absorb enough kinetic energy before it hits the yarn. It is common to accelerate the knife so much that with its kinetic energy it can quickly cut through all conceivable yarns. excess Energy is destroyed on the counterhold. Or, the knife receives the according given the current available energy. Then the knife supplied energy fluctuate arbitrarily.
- a disadvantage of such known devices is that the cutting force of the Knife is designed for the thickest yarn that is expected to be processed by the device could be, or that quite simply the drive always its full or the delivers the currently available service. This practically results in the knife is worn too strongly or too quickly and that the whole device itself is unnecessary experiences strong shocks.
- This group includes properties of the material from which the gam is made, diameter, cross-section, mass of the yarn, etc., as well as properties of the device used for cutting.
- One such property is, for example, the inertia of the masses moved with the knife and the knife itself, the characteristic of the frictional resistance of the moving Knife etc.
- a property such as the diameter or the cross section of the chamois immediately before the cut i.e. continuously measured and the The measured value is taken into account when dimensioning the supplied energy. Therefore the drive has a device for measuring the kinetic energy of the knife.
- Fig. 1 shows the most important parts of the device, in particular a carrier 1, a moving coil 2 with the coil 3 and the plunger 4, which is a drive for a knife holder 5 and thus also form for a knife 6 and a counterhold or anvil 7, the part of the carrier 1.
- the anvil 7 has a hardened surface 8, in front of which a yarn 9, for example is moved past in the direction of an arrow 10. Parts can be seen on carrier 1 of two screw connections 11 and 12, via which the device on a textile machine can be attached.
- the knife 6 is preferably fixed to the knife holder 5 connected, which in turn here with a releasable positive connection 13
- Submersible anchor 4 is connected. It is known per se and therefore not shown here that the coil has 3 turns that are not shown in this figure Control circuit 14 are connected.
- Fig. 2 shows a control circuit 14 as a device for measuring the kinetic energy of the knife 6, which is connected via a line 15 to a cutting device 16.
- the Cutting device 16 is preferably constructed as shown in FIG. 1.
- the administration 15 is connected via a line 19 and a switching element 17 to an energy store 18, formed here as a capacitor, connected to a voltage converter 20 connected. This in turn is via a line 21 and a further switching element 22 connected to a feed circuit 23.
- the switching elements 22 and 17 are Connected via lines 24 and 25 to a controller 26, which also has two inputs 27 and has 28.
- the input 27 is connected to the line 19 and the input 28 is either connected to a gamma meter 29 or a data input 30.
- the voltage converter 20 can be used, for example, as a DC converter or as a charge pump be trained.
- the controller 26 a corresponding to the Programmed microprocessor described below uses.
- the feed circuit 23, which is part of a textile machine, for example, supplies a feed voltage from e.g. 30V - 60V to line 21 and switching element 22. In closed State is thus fed the voltage converter 20, which is the applied Converts voltage, i.e. increases or limits and via line 19 the capacitor 18 charges
- a signal is present at the controller 26, which is a property of the yarn and / or the device (inertia, friction, etc.).
- the chamois can depend on the quality of the material or it can depend on the quantity of the material. Properties belong to the first group such as tensile strength, modulus of elasticity, internal damping, the energy absorption capacity, or just the properties of the raw material used and the processing chosen, etc.
- the controller 26 determines whether the switching element 22 is opened must, because the capacitor 18, for example, the existing cross section and material of the yarn is sufficiently charged.
- the switching element 17 is closed when a cut needs to be made by the controller 26 or one other element is triggered. Then the coil 3 by the voltage in the Line 15 is excited so that the plunger 4 moves towards the anvil 7 in FIG. 1 and the knife 6 pushes the yarn 9 against the surface 8 and separates it there.
- the switching element 17 is passed over line 25 after a time sufficient for one cut, e.g. after 10 Milliseconds, opened again.
- the switching element 22 is then switched on again via the line 24 closed until the capacitor 18 has the desired charging voltage again.
- the charging voltage is adjusted if it is proportional to the resistance that the Oppose the cut by the knife. This resistance is great if that Yarn has a large cross-section, i.e. many and / or thick or tough fibers, has, or small if the yarn has a small cross-section, i.e. few and / or thin or soft Has fibers.
- a suitable input via the data input 30 can also other factors dependent on the material used are taken into account. For example the tensile strength or hairiness of the yarn previously measured in the laboratory, or any other property that affects the force required for a cut. In this way, the kinetic energy can be supplied to the knife in doses and depending on it the cross-section or other properties of the yarn.
- the cross section is measured before cutting, for example, and the measurement value obtained in this way used to measure the kinetic energy by the controller 26.
- the kinetic energy is thus previously used as an electrical voltage, for example in the capacitor 18 saved.
- the electrical voltage can not only cross section of the yarn but also the mass of the knife 6 and other moving parts 4, 5 or other properties of the drive.
- the device can also be designed such that the function of the switching element 22 is perceived in the voltage converter 20. In this case, the switching element 20 falls away and the line 24 connects the controller 26 directly to the voltage converter 20.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Quality & Reliability (AREA)
- Treatment Of Fiber Materials (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Coiling Of Filamentary Materials In General (AREA)
Abstract
Description
Claims (8)
- Verfahren zum Schneiden von Garn auf einer Textilmaschine, mit einem Messer (6), wobei dem Messer Bewegungsenergie zugeführt wird, dadurch gekennzeichnet, dass die Bewegungsenergie dosiert zugeführt wird und in Abhängigkeit von mindestens einer Eigenschaft aus einer Gruppe von Eigenschaften, enthaltend Eigenschaften des Materials aus dem das Garn (9) besteht, der Masse, des Durchmessers, des Querschnitts und der Vorrichtung, die zum Schneiden verwendet wird, bemessen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass eine Eigenschaft unmittelbar vor dem Schneiden am Garn laufend gemessen wird und der so erhaltene Messwert zur Bemessung der Bewegungsenergie verwendet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Bewegungsenergie vorgängig als elektrische Spannung gespeichert wird.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass die elektrische Spannung proportional zum Querschnitt des Garns und zur Masse des Messers vorgesehen ist
- Vorrichtung zum Schneiden von Gam auf einer Textilmaschine, mit einem Messer (6) und einem Antrieb (2, 3, 4) für das Messer, dadurch gekennzeichnet, dass der Antrieb eine Vorrichtung (14) zur Bemessung der Bewegungsenergie des Messers aufweist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Vorrichtung zur Bemessung der Bewegungsenergie eine Steuerschaltung (26) und einen Energiespeicher (18) aufweist, wobei die Steuerschaltung die gespeicherte Energie dosiert.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass als Energiespeicher ein Kondensator vorgesehen ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass als Steuerschaltung ein in geeigneter Weise programmierter Mikroprozessor vorgesehen ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH156198 | 1998-07-24 | ||
CH156198 | 1998-07-24 | ||
PCT/CH1999/000329 WO2000006479A1 (de) | 1998-07-24 | 1999-07-19 | Verfahren und vorrichtung zum schneiden von garn auf einer textilmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1100741A1 EP1100741A1 (de) | 2001-05-23 |
EP1100741B1 true EP1100741B1 (de) | 2003-03-19 |
Family
ID=4213302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99928989A Expired - Lifetime EP1100741B1 (de) | 1998-07-24 | 1999-07-19 | Verfahren und vorrichtung zum schneiden von garn auf einer textilmaschine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6381941B1 (de) |
EP (1) | EP1100741B1 (de) |
JP (1) | JP2002521294A (de) |
CN (1) | CN1211269C (de) |
DE (1) | DE59904646D1 (de) |
WO (1) | WO2000006479A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH699425B1 (de) * | 2007-06-14 | 2010-03-15 | Uster Technologies Ag | Vorrichtung zum Schneiden eines fadenförmigen Körpers. |
WO2009018670A1 (de) * | 2007-08-07 | 2009-02-12 | Uster Technologies Ag | Vorrichtung zum schneiden eines fadenförmigen körpers |
CH699753A1 (de) * | 2008-10-16 | 2010-04-30 | Uster Technologies Ag | Vorrichtung und verfahren zum ausmessen einer kapazität. |
IT1402740B1 (it) * | 2010-10-19 | 2013-09-18 | Btsr Int Spa | Dispositivo di taglio di un filo tessile durante la sua alimentazione ad un elemento operatore |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2132137A1 (de) | 1971-06-29 | 1973-01-18 | R & M Leuze Fa | Elektronischer garnreiniger |
CH538418A (de) | 1971-11-26 | 1973-06-30 | Zellweger Uster Ag | Schneidvorrichtung für Garnreiniger |
FR2217441B1 (de) * | 1973-02-08 | 1975-03-07 | Rhone Poulenc Textile | |
GB1600164A (en) | 1978-05-25 | 1981-10-14 | Thorn Automation Ltd | Yarn clearer assemblies |
CH649270A5 (de) * | 1981-02-11 | 1985-05-15 | Peyer Siegfried | Verfahren zur schnittsteuerung fuer elektronische garnreiniger. |
GB2193978A (en) | 1986-07-17 | 1988-02-24 | Brierley John L Ltd | Yarn clearers |
DE3644433C2 (de) * | 1986-12-24 | 1995-10-19 | Schlafhorst & Co W | Verfahren und Vorrichtung zum Steuern einer Spulstelle einer Kreuzspulen herstellenden Textilmaschine |
JPH0314711U (de) * | 1989-06-23 | 1991-02-14 | ||
DE4310037C1 (de) * | 1993-03-27 | 1993-12-09 | Beermann Kg Martor Argentax | Messer mit verschiebbarer Messerklinge |
JPH1018131A (ja) * | 1996-06-27 | 1998-01-20 | Murata Mach Ltd | 糸の切断装置 |
-
1999
- 1999-07-19 WO PCT/CH1999/000329 patent/WO2000006479A1/de active IP Right Grant
- 1999-07-19 JP JP2000562292A patent/JP2002521294A/ja active Pending
- 1999-07-19 CN CNB998090646A patent/CN1211269C/zh not_active Expired - Fee Related
- 1999-07-19 EP EP99928989A patent/EP1100741B1/de not_active Expired - Lifetime
- 1999-07-19 US US09/744,391 patent/US6381941B1/en not_active Expired - Fee Related
- 1999-07-19 DE DE59904646T patent/DE59904646D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2002521294A (ja) | 2002-07-16 |
CN1311751A (zh) | 2001-09-05 |
WO2000006479A1 (de) | 2000-02-10 |
CN1211269C (zh) | 2005-07-20 |
US6381941B1 (en) | 2002-05-07 |
EP1100741A1 (de) | 2001-05-23 |
DE59904646D1 (de) | 2003-04-24 |
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