WO2003048016A1 - Fadenliefergerät - Google Patents
Fadenliefergerät Download PDFInfo
- Publication number
- WO2003048016A1 WO2003048016A1 PCT/EP2002/013626 EP0213626W WO03048016A1 WO 2003048016 A1 WO2003048016 A1 WO 2003048016A1 EP 0213626 W EP0213626 W EP 0213626W WO 03048016 A1 WO03048016 A1 WO 03048016A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor device
- delivery device
- thread delivery
- component
- thread
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
- D03D47/36—Measuring and cutting the weft
- D03D47/361—Drum-type weft feeding devices
- D03D47/367—Monitoring yarn quantity on the drum
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/48—Thread-feeding devices
- D04B15/482—Thread-feeding devices comprising a rotatable or stationary intermediate storage drum from which the thread is axially and intermittently pulled off; Devices which can be switched between positive feed and intermittent feed
- D04B15/486—Monitoring reserve quantity
Definitions
- the invention relates to a thread delivery device specified in the preamble of claim 1.
- the at least one optoelectronic sensor device of the thread delivery device is used to scan and / or monitor the thread processed by the thread delivery device mainly on the storage body.
- the sensor device often comprises photodiodes, circuits, a printed circuit board, a cover and optionally optical aids, combined in a housing inserted into the housing bracket (sensor assembly).
- the sensor device component closest to the storage body delimits, with the outer circumference of the storage body, a passage gap for the thread turns moving forward on the storage body in its axial direction. It is known to firmly install the sensor device in its operating position in the housing bracket, and to dimension the passage gap relatively widely so that, if necessary, the passage gap can be accessed for maintenance or cleaning purposes.
- the passage gap or the photodiodes are from the outer periphery of the memory body, the higher quality (more expensive) the photodiodes and the circuits are.
- this conflicts with the requirement for access for maintenance or cleaning purposes. Therefore, when the sensor device is firmly positioned between these two aspects, a compromise is necessary.
- the invention is based on the object of specifying a thread delivery device in which the sensor device works optimally close to the storage body in order to be able to use inexpensive components in the storage device, and which is nevertheless maintenance-friendly.
- the object is achieved with the features of claim 1. Thanks to the adjustability of at least the sensor device component, the sensor device works optimally close to the outer circumference of the storage body in the operating position. As a result, cheaper photodiodes and simpler circuits can be used. If maintenance or cleaning is required, then at least the sensor device component can be moved into the maintenance or cleaning position, in which at least largely unimpeded access to the then further passage gap is possible. The maintenance or cleaning position can be selected so that unimpeded access is permitted, ie that the ease of maintenance is even better than with conventional thread delivery devices with a permanently installed sensor device.
- the adjustable sensor device component can be a cover or an optical auxiliary device, or can even be the photodiodes themselves.
- the sensor device as a whole is particularly expediently adjusted, i.e. the entire structural unit, possibly even with a component of the circuit board carrying the sensor device.
- Comfortable handling results if the sensor device can be fixed both in the operating position and in the maintenance or cleaning position.
- the sensor device is conveniently adjusted directly in the housing bracket of the housing of the thread delivery device.
- a movement guide can be provided in the housing arm, in which the sensor device can be moved back and forth between these two positions.
- the sensor device moves parallel to itself away from and towards the storage body.
- the sensor device With a swivel adjustment around an actuating axis, the sensor device can be brought into any maintenance or cleaning position that is relatively far away from the storage body.
- the positioning axis can be essentially parallel to the axis of the storage body or perpendicular to it, or also skewed in space, so that the sensor device is in there lets the maintenance and cleaning position move where there is space in the thread delivery device.
- the swivel lever is attached to a swivel lever or to a handlebar arrangement which takes over the movement control. It is particularly inexpensive and convenient to bring the sensor device into the maintenance position against spring force, and, e.g. to define the operation position by resetting under the spring force. Conversely, however, the maintenance position with spring force and the operating position against the spring force can also be set. Alternatively, the adjustments can be made without any spring force, e.g. set by hand or by means of a drive.
- a, expediently spring-loaded, latching mechanism can be provided, which is automatically active and convenient, e.g. by hand.
- the senor device is only brought into the maintenance and cleaning position by manual pressure, in which the latching mechanism engages automatically.
- a manual or remote-controlled drive can also be used to adjust the sensor device, preferably with an actuating element or switch that is accessible at a favorable position of the housing bracket or the housing.
- the locking mechanism can be triggered remotely so that it does not have to intervene by hand in the space that may be cramped between the housing bracket and the storage body.
- the locking mechanism can be activated by a Trigger the electromagnet, which is either energized via a switch, for example automatically when the thread delivery device is switched on, or as desired.
- the latching mechanism can also be in operative connection with a component that rotates or moves back and forth when the thread delivery device is switched on, which releases the latching mechanism, so that the sensor device that is accidentally not returned to the operating position is then brought into the operating position.
- a component for example, a winding disk or a feed element of the thread delivery device would be usable.
- FIG. 1 is a side view of a thread delivery device with a sensor device in the operating position
- Fig. 2 shows the thread delivery device of Fig. 1 with the sensor device in one
- Fig. 7 is a schematic side view of another yarn delivery device.
- a thread delivery device F in FIGS. 1 and 2 for example a thread delivery device F for a knitting machine, has on a housing 1 a housing arm 2 firmly connected thereto and a rotatable storage body 3, for example in the form of a rod drum, the outer circumference of which is designated by 5 ,
- the storage body 3 is driven in rotation by a drive motor 7 arranged in the housing 1.
- the drive motor 7 is controlled by a control device 8, the signals in a Housing boom 2 arranged, processed opto-electronic sensor device S.
- the sensor device S monitors and detects, for example, predominantly windings of a thread Y which are wound on the outer circumference 5 of the storage body 3.
- the current for the thread delivery device F can be switched on and off, for example, by means of a main switch 6.
- the sensor device S contains, for example, a plurality of photodiodes (not highlighted), a circuit, a circuit board, and possibly other electronic components, which are protected by a cover as part 4 of the sensor device S.
- component 4 can contain, for example, an optical auxiliary device (diaphragms, lenses or the like).
- the component 4 lies opposite the outer circumference 5 of the storage body 3 at a distance which is as narrow as possible and which gives a passage gap X for the thread turns.
- At least the component 4 of the sensor device S preferably the sensor unit S as an entire structural unit, can be adjusted from the operation position A shown in FIG. 1 to a maintenance or cleaning position B (FIG. 2) in which the passage gap X increases to a dimension X1 or the component 4 or the entire sensor device S is so far away from the outer periphery 5 of the storage body 3 that good access to maintenance or cleaning work is possible.
- a maintenance or cleaning position B FIG. 2
- the sensor device S can be adjusted as a structural unit into the housing bracket 2, for example to such an extent that the component 4 is just coming forward. This can be done by simple manual pressure on component 4 in FIG. 1 to the right or to the drawing level or from the drawing level.
- a dashed control element H is provided, which can be gripped by hand in an easily accessible position of the housing bracket 2 in order to move the sensor device S back and forth between the two positions A and B.
- the sensor device S is provided with a cover as the component 4, for example a printed circuit board 9 and attached to it. arranged electronic components such as photodiodes and in a movement guide 11 in the housing bracket 2 between the operating position A (FIG. 3) and the maintenance or cleaning position B (FIG. 4), for example by pressure in the plane of the drawing to the right.
- a cover as the component 4, for example a printed circuit board 9 and attached to it.
- electronic components such as photodiodes and in a movement guide 11 in the housing bracket 2 between the operating position A (FIG. 3) and the maintenance or cleaning position B (FIG. 4), for example by pressure in the plane of the drawing to the right.
- the circuit board 9 is acted upon at the rear by at least one resilient element 10 in the direction of the operating position A of the sensor device S.
- the operating position B is defined by the springs 10 and a stop 12 of the housing arm 2.
- the movement guide 11 is assigned a locking mechanism M, which, in the embodiment shown, has a pivotable locking pawl 13 which is under the pressure of a spring 14 and engages laterally in the movement guide 11 with a locking lug 15, namely over the movement path of the Printed circuit board 12 or another support body. If the sensor device S is moved linearly into the movement guide 11 by hand pressure from the shown operating position A in FIG. 3, then the locking lug 15 of the pawl 13 engages behind the printed circuit board 9 (under the pressure of the spring 14), so that the Sensor device S automatically maintains the maintenance and cleaning position of FIG. 4. An actuator 16 of the pawl 13 is placed within reach, for example on the inside of the housing arm 2, and enables the latching mechanism M to be released.
- the actuator 16 could, for the sake of convenience, also be placed on the free rear side of the housing bracket 2 or, if appropriate, be activated via a corresponding actuation connection from any, but easily accessible, location of the housing 1 or the housing bracket 2 to release the latching mechanism M.
- a remotely actuatable triggering possibility for the latching mechanism M is indicated, for example an electromagnet R, which interacts with a counter magnet or a magnetic part T on the latching pawl 13.
- the electromagnet R can be energized, for example by means of a switch S, which is placed at an easily accessible location, by the control device 8 of the thread delivery device. räts, or by the on / off switch 6 directly. This ensures that the sensor device S does not inadvertently remain in the maintenance and cleaning position when the thread delivery device starts operating.
- the sensor device S is arranged on a lever 17 which can be pivoted about an actuating axis 18 perpendicular to the storage body axis and which is acted upon by a spring 10 in the direction of the operating position shown in FIG. 5. If necessary, an arcuate movement guide 11 is provided for the sensor device in the housing bracket 2.
- the locking mechanism M acts similarly to Figs. 3 and 4.
- a handlebar arrangement e.g. a handlebar parallelogram or the like can be provided.
- Dashed lines indicate a variant in which the locking mechanism.
- M is arranged in effect close to the housing 1 and has an actuating element 19 which, in the latched position of the latching mechanism M, engages in the movement path of a component K of the thread delivery device which is moved back and forth either rotating or in the axial direction of the storage body. If, inadvertently, the locking mechanism M has not been released, the component K moves, for example in the direction of arrow 20, when the thread delivery device starts operating, in order to release the locking mechanism M via the actuator 19, so that the springs 10 move the sensor device S into Fig. 5 bring the operating position shown.
- a yarn delivery device F for weaving machines is indicated, which is used there to deliver the weft.
- the sensor device S is indicated in the maintenance or cleaning position, in which it maintains a large distance to the periphery of the storage body 3 which enables access.
- the locking mechanism M is engaged and engages with an actuator (not shown) in the path of movement of a component K, here for example a nose 23 on a winding disk 21, in which the mouth 22 of the winding tube for winding the thread on the stationary storage body 3 is arranged.
- the actuating member can easily cooperate with the nose 23. If, inadvertently, the sensor device S was not returned to the operating position, then the nose 23 releases the locking mechanism M when the thread delivery device F starts operating.
- a major advantage of these different solutions is that, in the operating position, the sensor device S or at least its component 4 can be placed as close as possible to the outer periphery 5 of the memory body, so that inexpensive and relatively simple photodiodes and simple circuits can be used. This is possible because, for maintenance or cleaning work, the sensor device S or its component 4 can be adjusted to the maintenance and cleaning position, in which largely unobstructed access is possible, although there is almost no access option in the operating position.
- the suspension and the locking mechanism could be designed like a two-position locking fitting, so that the sensor device S can be brought from the operating position into the maintenance or cleaning position by pressure with the fingers and locked into the latter. By pressing the sensor device again, the latching is released and the operating position is automatically set again. This can be supported, e.g. on the extension arm 2, an operating instruction should be placed at a suitable point.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Looms (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002360954A AU2002360954A1 (en) | 2001-12-03 | 2002-12-02 | Feedwheel unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001159227 DE10159227A1 (de) | 2001-12-03 | 2001-12-03 | Fadenliefergerät |
DE10159227.2 | 2001-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003048016A1 true WO2003048016A1 (de) | 2003-06-12 |
Family
ID=7707810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/013626 WO2003048016A1 (de) | 2001-12-03 | 2002-12-02 | Fadenliefergerät |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1283536C (de) |
AU (1) | AU2002360954A1 (de) |
DE (1) | DE10159227A1 (de) |
WO (1) | WO2003048016A1 (de) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865085A (en) * | 1985-04-22 | 1989-09-12 | Roj Electrotex S.P.A. | Weft feeding device for weaving looms |
EP0536088A1 (de) * | 1991-09-20 | 1993-04-07 | L.G.L. ELECTRONICS S.p.A. | Modulierte Fadenbremse für eine Schussfadenliefervorrichtung |
US5894744A (en) * | 1995-05-08 | 1999-04-20 | Fabschitz; Heinrich | Speed control apparatus for yarn winding storage drum |
EP0965552A2 (de) * | 1998-06-16 | 1999-12-22 | L.G.L. Electronics S.p.A. | Vorrichtung zur Überwachung der Fadenreserve in Schussfadenliefervorrichtungen für Webmaschinen |
US6125663A (en) * | 1995-12-08 | 2000-10-03 | Memminger-Iro Gmbh | Method and apparatus for monitoring scanning conditions during control of a yarn feeding device |
-
2001
- 2001-12-03 DE DE2001159227 patent/DE10159227A1/de not_active Withdrawn
-
2002
- 2002-12-02 CN CN 02826637 patent/CN1283536C/zh not_active Expired - Fee Related
- 2002-12-02 WO PCT/EP2002/013626 patent/WO2003048016A1/de not_active Application Discontinuation
- 2002-12-02 AU AU2002360954A patent/AU2002360954A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865085A (en) * | 1985-04-22 | 1989-09-12 | Roj Electrotex S.P.A. | Weft feeding device for weaving looms |
EP0536088A1 (de) * | 1991-09-20 | 1993-04-07 | L.G.L. ELECTRONICS S.p.A. | Modulierte Fadenbremse für eine Schussfadenliefervorrichtung |
US5894744A (en) * | 1995-05-08 | 1999-04-20 | Fabschitz; Heinrich | Speed control apparatus for yarn winding storage drum |
US6125663A (en) * | 1995-12-08 | 2000-10-03 | Memminger-Iro Gmbh | Method and apparatus for monitoring scanning conditions during control of a yarn feeding device |
EP0965552A2 (de) * | 1998-06-16 | 1999-12-22 | L.G.L. Electronics S.p.A. | Vorrichtung zur Überwachung der Fadenreserve in Schussfadenliefervorrichtungen für Webmaschinen |
Also Published As
Publication number | Publication date |
---|---|
AU2002360954A1 (en) | 2003-06-17 |
CN1612835A (zh) | 2005-05-04 |
CN1283536C (zh) | 2006-11-08 |
DE10159227A1 (de) | 2003-06-18 |
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