EP0866155A1 - Verfahren und Vorrichtung zur Kontrolle der Teilfachbildung an einer Schärmaschine - Google Patents
Verfahren und Vorrichtung zur Kontrolle der Teilfachbildung an einer Schärmaschine Download PDFInfo
- Publication number
- EP0866155A1 EP0866155A1 EP98810081A EP98810081A EP0866155A1 EP 0866155 A1 EP0866155 A1 EP 0866155A1 EP 98810081 A EP98810081 A EP 98810081A EP 98810081 A EP98810081 A EP 98810081A EP 0866155 A1 EP0866155 A1 EP 0866155A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- catch
- fork
- holder
- compartment
- 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.)
- Granted
Links
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Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H9/00—Leasing
Definitions
- the invention relates to a method and an apparatus for Check the sub-compartment formation on a warping machine according to the preamble of claim 1 or of claim 3.
- Die Thread division on a warping machine is known to Crosshairs to form, which later the processing the individual warp threads. Also for finishing of the warp threads must be inserted so that sub-elements the warp threads safely after leaving the sizing bath can be separated.
- the thread sensor is preferably motorized together with a driven element feeder inserted into the compartment, whose drive can be switched off by the control signal and / or is reversible. In this way there is none for the sensor separate gearbox and no separate drive device required. By switching off and / or reversing the Drive for the element feeder is prevented incorrectly stretched threads due to a further feed can tear.
- the thread sensor is advantageously a tactile sensor that points to Touch with a thread reacts, being a predeterminable Thread tension and thus a predeterminable response resistance can be adjusted.
- the tactile sensor has that Advantage that it is not very sensitive to environmental factors Disturbances and that even fine threads can be easily determined to let. Of course, it would also be a contactless one Sensor conceivable with optical, electromagnetic or works with other physical effects.
- a particularly safe way of working the thread sensor can be achieved if this has a catch fork, the Define the fork leg a specific catch area in the compartment.
- the catch fork ensures a clear positioning a fault thread on the sensor and at the same time with the Fork legs define a catch area that is essential is wider than the actual action area of the Sensors.
- the catch fork can be designed like a shovel and it can have fork legs that act as wings are formed, which are from a base surface extend, the width of which is smaller than the width of the Fork opening.
- the V-shaped or U-shaped arrangement of the Fork leg also causes when the element feeder is pulled back a safe rejection of the partial thread associations after inserting the sub-element.
- the catch fork is preferably under spring tension a holder movably mounted, a switching element on the holder is arranged by the catch fork when detecting a thread in the catch area by relative movement to the holder can be actuated.
- the spring preload can be used to Adjust the sensitivity of the sensor using the switching element only responds when a certain relative movement was covered.
- the switching element is advantageously a Proximity switch, as this is in the dust-laden environment a warping machine is not very susceptible to contamination.
- the Switching element could also be a microswitch, an optical or piezoelectric switching element or the like be.
- the catch fork is advantageous about an approximately vertical axis pivoted on the holder and supported by a holder Spring, e.g. a compression spring biased. To the vertical axis can be adjusted depending on the design of the catch fork generate a leverage and it is contrary to a linear guidance of the safety fork does not pose a risk Tilting or jamming.
- Operational safety can also be increased by the fact that on an approximately horizontal plane, two sensors at a distance are arranged to each other. Since the individual threads one Thread section not run parallel to each other, but diverge towards the gate, there must also be error threads can be determined in any possible inclined position are arranged. When arranging two sensors becomes at least one of the two sensors depending on the inclined position always address the fault line.
- the sensors with catch forks are advantageously mounted on the holder so that they counter to the bias of their respective spring are pivotable.
- FIG. 1 shows a warping machine 1 which is known per se, such as, for example, in EP-A-368801 mentioned at the beginning is described.
- the operating state of the is shown Machine when inserting a crosshair element. It is a thread assembly drawn off from a gate, not shown 10 passed through a bar grate 2.
- Sticks 3 By means of pushed together Sticks 3 is the thread behind the Bar grating 2 brought together on one level.
- the two reading sheets 4, 4 ' are shifted against each other and thus open a partial compartment 15, which is delimited by an upper partial thread association 11 and a lower thread part dressing 12.
- This Thread sub-associations pass through the warping blade 5, which for Introducing a partial element with the help of the laterally arranged Sub-device 7 has been pushed back.
- the warping blade 5 is in a known manner on a warping slide 8 arranged parallel and radial to one Warping drum 6 is displaceable and a deflection roller 9 wearing.
- the warping carriage also carries the sub-device 7, in this way always at the same lateral relative distance is arranged to the partial thread associations.
- At the A partial device can be an upper and a lower element feeder 13, 14 are extended.
- the lower element feeder 13 always penetrates into the open compartment 15. Of the upper element feeder can on the lower element feeder be lowered.
- Figure 3 shows a hint of the lower one described above Element feeder 13 in the direction of arrow a in the open Tray 15 is introduced.
- the upper thread part dressing 11 and the lower thread part dressing 12 are again indicated.
- an error thread 34 for example would be assigned to the upper thread section 11, the however, due to a malfunction across the open Tray 15 runs.
- the one according to the invention Device arranged at the head of the element feeder 13 .
- This consists of a holder 25 its end face at a distance from each other two thread sensors 18, 18 'are arranged.
- the thread sensors or theirs associated catch forks 19 (FIG. 4) define a catch area 20, which is indicated by dash-dotted lines.
- the fault thread 34 crossing this catch area thus becomes detected by the sensor 18 ', the one described below Way a control signal is generated.
- This control signal causes the feed to switch off immediately and it releases an alarm signal with which an operator is summoned can be. After fixing the error, the Automatic operation can be continued normally.
- the holder 25 is formed as an approximately cuboid body, which with the help of two fastening screws 26, 26 'with the element feeder 13 is screwed.
- the two as catch forks 19, 19 ' trained sensors are each about a vertical pivot axis 28, 28 'mounted in the direction of arrow b on the holder 25.
- Each catch fork 19 has two fork legs 21, 21 ', the a base surface 22 opening outwards.
- the Fork legs form tapered wings, such as in particular can be seen from Figure 6. In the top view it is Catch fork designed like a shovel or a ploughshare.
- On the base surface 22 are screw holes 24 for attachment arranged on a bearing element 27. In the base area 22 a larger opening 23 is also arranged through which the screws 26, 26 'are tightened or loosened can.
- the two catch forks are pivoted in opposite directions and one each arranged at a distance from the pivot axis Compression spring 30 biased.
- the biased position is indicated by a broken line. Every compression spring is supported in a hole in the holder 25.
- a proximity switch on each outside of the holder 25 29 attached such that it is in the effective range of the outer end 31 of a catch fork. Any proximity switch generates a control signal as soon as a catch fork 19 is pivoted by striking an error thread and the outer end 31 approaches the proximity switch.
- Each catch fork 19 is connected to a bearing element 27, that in a cavity 33 open at the end in the holder 25 is stored.
- the bearing element 27 is also used for Mass balancing by forming a balancing mass 32, which compensates for the inertia acting in the direction of arrow b.
- a balancing mass 32 which compensates for the inertia acting in the direction of arrow b.
- sensors on different horizontal Layers can be arranged.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Warping, Beaming, Or Leasing (AREA)
Abstract
Description
- Figur 1
- die Seitenansicht einer Schärmaschine in stark schematisierter Darstellung,
- Figur 2
- eine perspektivische Darstellung eines Teilelements an einem Fadenteilverband,
- Figur 3
- eine erfindungsgemässe Vorrichtung beim Einführen in ein aufgespanntes Fach,
- Figur 4
- eine Seitenansicht auf die Vorrichtung gemäss Figur 3 in Fadenlaufrichtung gesehen,
- Figur 5
- eine Draufsicht auf die Vorrichtung gemäss Figur 3, und
- Figur 6
- eine Draufsicht auf eine einzelne Fanggabel.
Claims (13)
- Verfahren zur Kontrolle der Teilfachbildung an einer Schärmaschine (1), wobei zum Einbringen eines Teilelements (16) zur Abgrenzung von Fadenteilverbänden (11, 12) ein Fadenverband (10) zu einem Fach (15) aufgespannt wird, dadurch gekennzeichnet, dass vor dem Einbringen des Teilelements (16) wenigstens ein Fadensensor (18, 18') quer zur Laufrichtung des Fadenverbandes in das aufgespannte Fach (15) eingeführt wird, der beim Ermitteln eines Fadens (34) in seinem Vorschubbereich (20) ein Steuersignal erzeugt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Fadensensor (18, 18') zusammen mit einem motorisch angetriebenen Elementzubringer (13) in das Fach (15) eingeführt wird, dessen Antrieb durch das Steuersignal abschaltbar und/oder reversierbar ist.
- Vorrichtung zur Kontrolle der Teilfachbildung an einer Schärmaschine (1), wobei zum Einbringen eines Teilelements (16) zur Abgrenzung von Fadenteilverbänden (11, 12) ein Fadenverband (10) zu einem Fach (15) aufspannbar ist, gekennzeichnet durch wenigstens einen quer zur Laufrichtung des Fadenverbandes in das aufgespannte Fach (15) einführbaren Fadensensor (18, 18'), mit dem beim Ermitteln eines Fadens (34) in seinem Vorschubbereich (20) ein Steuersignal erzeugbar ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Fadensensor (18, 18') in Vorschubrichtung gesehen am Kopf eines motorisch angetriebenen Elementzubringers (13) angeordnet ist, dessen Antrieb durch das Steuersignal abschaltbar und/oder reversierbar ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass der Fadensensor (18, 18') ein taktiler Sensor ist, der auf eine vorbestimmbare Fadenspannung einstellbar ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Fadensensor (18, 18') eine Fanggabel (19) aufweist, deren Gabelschenkel (21, 21') einen bestimmten Fangbereich (20) im Fach (15) definieren.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Fanggabel (19) schaufelartig ausgebildet ist und dass die Gabelschenkel (21, 21') Flügel sind die sich von einer Basisfläche (22) aus erstrecken, deren Breite kleiner ist, als die Breite der Gabelöffnung.
- Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Fanggabel (19) unter Federvorspannung an einem Halter (25) beweglich gelagert ist und dass am Halter ein Schaltelement (29) angeordnet ist, das durch die Fanggabel beim Erfassen eines Fadens (34) im Fangbereich (20) durch Relativbewegung zum Halter betätigbar ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Schaltelement (29) ein Näherungsschalter ist.
- Vorrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Fanggabel (19) um eine etwa vertikale Achse (28) schwenkbar am Halter (25) gelagert ist und durch eine am Halter abgestützte Feder (30) vorgespannt ist.
- Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Fanggabel (19) mit einer Ausgleichsmasse (32) versehen ist, welche bezogen auf die vertikale Schwenkachse (28) derart angeordnet ist, dass eine Vorschubbeschleunigung des Halters (25) kein die Federvorspannung überwindendes Drehmoment an der Fanggabel erzeugt.
- Vorrichtung nach einem der Ansprüche 3 bis 11, dadurch gekennzeichnet, dass auf einer etwa horizontalen Ebene zwei Sensoren (18, 18') im Abstand zueinander angeordnet sind.
- Vorrichtung nach einem der Ansprüche 10 oder 11 und nach Anspruch 12, dadurch gekennzeichnet, dass zwei Fanggabeln (19, 19') am Halter (25) gelagert sind, welche gegensinnig gegen die Vorspannung ihrer jeweiligen Feder schwenkbar sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH61997 | 1997-03-14 | ||
CH61997 | 1997-03-14 | ||
CH619/97 | 1997-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0866155A1 true EP0866155A1 (de) | 1998-09-23 |
EP0866155B1 EP0866155B1 (de) | 2001-11-07 |
Family
ID=4191226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98810081A Expired - Lifetime EP0866155B1 (de) | 1997-03-14 | 1998-02-04 | Verfahren und Vorrichtung zur Kontrolle der Teilfachbildung an einer Schärmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US5940945A (de) |
EP (1) | EP0866155B1 (de) |
JP (1) | JPH10259540A (de) |
DE (1) | DE59802014D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59900452D1 (de) * | 1998-05-07 | 2002-01-10 | Sucker Mueller Hacoba Gmbh | Verfahren und vorrichtung zum schären mit einer konusschärmaschine |
EP1143052B1 (de) * | 2000-04-04 | 2009-07-15 | Karl Mayer Textilmaschinen AG | Verfahren und Vorrichtung zur Fadenteilung an einer Schärmaschine |
EP1870501A1 (de) * | 2006-06-23 | 2007-12-26 | Stäubli AG Pfäffikon | Vorrichtung zum Separieren von Fäden aus einer Fadenschicht, Verfahren zum Betreiben der Vorrichtung und Verwendung der Vorrichtung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368801A1 (de) * | 1988-11-10 | 1990-05-16 | Benninger AG | Verfahren und Vorrichtung zur Fadenteilung an einer Schärmaschine |
JPH07305244A (ja) * | 1994-05-06 | 1995-11-21 | Toudou Seisakusho:Kk | 自動綾取機 |
DE4443627A1 (de) * | 1994-12-08 | 1996-06-13 | Hacoba Textilmaschinen | Verfahren und Vorrichtung zum Einlegen von fadentrennenden Schnüren in die Fadenbänder einer Konusschärmaschine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3751937A (en) * | 1971-12-13 | 1973-08-14 | Travis Mills Corp | Warp knitting machine having exhausted spool detector and spool therefor |
US3765777A (en) * | 1972-02-22 | 1973-10-16 | Monsanto Co | Device for locating and identifying threadline defects |
US3869770A (en) * | 1973-08-10 | 1975-03-11 | Deering Milliken Res Corp | Tight warp detector |
JPS5750303Y2 (de) * | 1978-04-04 | 1982-11-04 | ||
DE3763978D1 (de) * | 1987-05-14 | 1990-08-30 | Ottica Arcetri Istituto Naz | Schussfaden-kontrollvorrichtung in luftwebmaschinen. |
CH678196A5 (de) * | 1988-05-27 | 1991-08-15 | Benninger Ag Maschf | |
JP3134879B2 (ja) * | 1990-09-27 | 2001-02-13 | 津田駒工業株式会社 | 流体噴射式織機の積極フィードよこ入れ装置 |
-
1998
- 1998-02-04 DE DE59802014T patent/DE59802014D1/de not_active Expired - Fee Related
- 1998-02-04 EP EP98810081A patent/EP0866155B1/de not_active Expired - Lifetime
- 1998-02-10 US US09/021,382 patent/US5940945A/en not_active Expired - Fee Related
- 1998-03-13 JP JP10062675A patent/JPH10259540A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368801A1 (de) * | 1988-11-10 | 1990-05-16 | Benninger AG | Verfahren und Vorrichtung zur Fadenteilung an einer Schärmaschine |
JPH07305244A (ja) * | 1994-05-06 | 1995-11-21 | Toudou Seisakusho:Kk | 自動綾取機 |
DE4443627A1 (de) * | 1994-12-08 | 1996-06-13 | Hacoba Textilmaschinen | Verfahren und Vorrichtung zum Einlegen von fadentrennenden Schnüren in die Fadenbänder einer Konusschärmaschine |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 096, no. 003 29 March 1996 (1996-03-29) * |
Also Published As
Publication number | Publication date |
---|---|
DE59802014D1 (de) | 2001-12-13 |
US5940945A (en) | 1999-08-24 |
EP0866155B1 (de) | 2001-11-07 |
JPH10259540A (ja) | 1998-09-29 |
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