EP1040067A1 - Fadenliefergerät - Google Patents
FadenliefergerätInfo
- Publication number
- EP1040067A1 EP1040067A1 EP98965279A EP98965279A EP1040067A1 EP 1040067 A1 EP1040067 A1 EP 1040067A1 EP 98965279 A EP98965279 A EP 98965279A EP 98965279 A EP98965279 A EP 98965279A EP 1040067 A1 EP1040067 A1 EP 1040067A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- axis
- delivery device
- arm
- feeler
- 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
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
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
- B65H51/22—Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
-
- 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
-
- 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
Definitions
- the invention relates to a thread delivery device specified in the preamble of claim 1.
- a thread delivery device with such a sensor device is from the operating and maintenance instructions IWF 9 007, IWF 9 107, IWF 9 207 from IRO AB, with the reference number 07-8930-0812-01 / 9647, pp. 10, 43, 44, 50, 51 and 53 are known.
- the sensor device two sensor arms are arranged one above the other and arranged in such a way that their sensor feet scan for the presence or absence of the thread supply at two points located one behind the other in the feed direction of the thread turns on the storage drum.
- Each sensor arm is designed as a two-legged wire bracket, the cranked sensor foot of which projects downwards from the sensor housing.
- Each sensor arm has its own swivel axis, on which a sleeve can be clamped, which carries an arm that extends the sensor arm via the swivel axis to the side opposite the sensor foot.
- This arm engages with its end in the scanning device, which is attached in the sensor housing or on the housing of the thread delivery device on the side of the swivel axis facing away from the sensor foot.
- An optoelectronic switch is provided in the scanning device, which generates a signal when shaded by the arm.
- a spiral spring is anchored to the scanning device, which extends in the direction of the pivot axes of the two sensor arms and acts on each arm in such a way that the sensor foot is resiliently loaded in its basic position, regardless of the installation position of the thread delivery device.
- the sensor device contains many individual parts, requires a lot of installation space in the direction of the axis of the storage drum and transversely to it, requires special care and expertise in the setting, and shows a possibly uneasy response behavior under difficult operating conditions.
- the invention has for its object to provide a yarn delivery device of the type mentioned, which is characterized by a compact sensor device with few individual parts and a precise, yet insensitive response.
- the object is achieved according to the invention with the features of claim 1.
- the sensor arms with their sensor arm parts are mounted on a common axis, this results in a compact sensor device with only a few individual parts.
- the sensor arms can be placed at approximately the same distance from the storage drum.
- the feeler feet can have approximately the same effective lengths. Due to the compact arrangement of the Feühierarme with mutually equal movement conditions on the common axis and the approximately equally long sensor feet, a precise, yet insensitive response behavior of the sensor device can be achieved.
- the axis common to all sensor arms saves installation space in the sensor housing.
- At least two, preferably even three, sensor arms are mounted on the common axis, so that several functions can be carried out with the compact sensor device.
- the axis is arranged in the sensor housing, where it can be placed at a convenient location.
- the axis is expediently non-rotatably fixed, while the sensor arms can be pivoted relative to the axis.
- each sensor arm part is expediently only as long as it corresponds to the distance of its sensor base from the axis. Therefore, the sensor feet can be placed almost in an axial row one behind the other.
- the axis is approximately parallel to the direction of the axis of the storage drum and the sensor arms are transverse to the direction of the axis of the storage drum. drum oriented. This allows sensor arm parts of the same length and thus lever arms of the same length to be realized for the feet.
- the sensor feet can also be arranged exactly in an axial row along the storage drum.
- the spring element not only has the task of generating the load on the sensor arm in the direction of its basic position, irrespective of the installation position of the thread delivery device, but also to dampen the occurrence of oscillating oscillating movements of the sensor arm under unfavorable operating conditions, possibly even when it arises, and without any significant additional constructional effort .
- This is achieved by a spring hardening which is set as a function of the stroke in a range of motion of the sensor arm, in which the sensor arm can move outside of the actual scanning of the presence or absence of the thread supply due to the working dynamics.
- the forced damping prevents an undesirable rocking effect without interfering with the working of the sensor arm when scanning the presence or absence of the thread. Conversely, this damping effect improves the correct working of the sensor arm within its actual working area.
- the suspension of the sensor arm and the aforementioned damping are structurally simple.
- the scanning device and the spring arrangement are integrated into the sensor housing on the same side of the axis as the sensor arm parts carrying the sensor feet, considerable installation space is saved in the direction of the axis of the storage drum. Furthermore, the number of individual parts of the sensor device is reduced. Space is also saved transversely to the axis of the storage drum, since the individual, cooperating parts can be arranged closely together. This is an advantage for a sensor device with several sensor arms and a correspondingly large number of accessories. The compact arrangement prevents harmful vibrations the, so that a stable, yet sensitive response can be achieved.
- the sensor arms are extended beyond the axis with sensor arm parts which cooperate there with the scanning device and / or the spring arrangement. Although more installation space is required in the direction of the axis of the storage drum, the scanning device is removed from the influence of dirt and fluids.
- the feeler arm parts are of different lengths in order to obtain largely similar lever ratios and movement ratios due to the different distances of the feeler feet from the common axis, at least when scanning the position of the feeler arms.
- a weight balance is achieved by the ballast masses, which protects the thread against undesirably strong mechanical loads.
- the scanning device is arranged on a circuit board (a printed circuit board) and protected outside the sensor housing.
- the sensor arm parts that extend the sensor arms via the common axis extend to the scanning device. Your cooperation with the scanning device is protected against contamination.
- the lengthening sensor arm parts contribute to the weight balance, so that, if necessary, more wear-resistant and therefore heavier sensor feet can be used.
- FIG. 2 is a perspective partial sectional view similar to that of FIG. 1 on an enlarged scale
- FIGS. 1 and 2 shows some components from FIGS. 1 and 2 in a perspective view and detached from the overall assembly
- Fig. 4 is a partial sectional view of a further embodiment.
- a winding element 1 of a storage drum 2 is indicated by a thread delivery device F, for example a weft delivery device for a weaving machine, which is associated with a sensor device S connected to the housing (not shown) or a housing extension 4.
- a thread delivery device F for example a weft delivery device for a weaving machine
- sensor device S connected to the housing (not shown) or a housing extension 4.
- three sensor arms A are provided, which extend approximately parallel to one another in the direction of the axis of the storage drum 2 and monitor a thread supply V consisting of turns of a thread Y on the storage drum 2.
- the thread supply V is formed by a relative rotary movement between the winding element 1 and the storage drum 2 (in the present case a stationary storage drum 2) with an axial size, which is automatically controlled in order to avoid emptying of the storage drum 2 despite continuous or intermittent thread consumption.
- the thread supply V overlaps a longitudinal recess 3 in the storage drum 2.
- Feet 8a to 8c are aligned with this recess 3, each of which can be held under spring force in a basic position in which it engages in and out of the recess 3, expediently without contact it can be shifted upwards from the basic position in FIG. 1 by the thread supply V.
- the left sensor foot 8a in FIG. 1 can belong to a thread break monitor which responds as soon as the first turns of the thread supply V fail to appear.
- the feeler foot 8b can belong to a minimum sensor which monitors the minimum permissible axial size of the thread supply V and, in the absence of the thread supply V in this area, activates the drive of the winding element 1 in order to supplement the thread supply V.
- the sensor base 8c belongs, for example, to a so-called maximum sensor, which switches off or delays the drive of the winding element 1 when it is shifted from the basic position shown in FIG. 1, because the permissible maximum size of the thread supply has been reached.
- Each sensor arm A consists of a sensor arm part 7a to 7c and the sensor foot 8a to 8c already mentioned. These two components can be manufactured separately and releasably connected to one another. All three sensor arms A are pivotally mounted on a common axis 5 in a sensor housing 6, the axis 5 extending approximately transversely to the direction of the axis of the storage drum 2. Alternatively, it would be possible to arrange the axis 5 parallel to the axis of the storage body 2 and to orient the sensor arm parts A transversely to the axis of the storage drum 2.
- the axis 5 is expediently fixed in the sensor housing 6, the sensor arms include the axis 5 with inserted or molded bearing bushes, which can also determine the mutual distances between the sensor arms.
- a spring arrangement B is provided in the sensor housing and is associated with a switchover device D.
- the sensor housing 6 is integrated in the arm 4 of the thread delivery device housing.
- Each sensor arm A is assigned a scanning device T which, depending on the respective pivoting position of the sensor arm, generates at least one signal for an assigned monitoring or control device.
- the scanning device T can be an optoelectronic, electrical, electronic or electromagnetic detector which scans the pivoting position of the associated sensor arm A without contact, or an electrical switch which can be actuated by the sensor arm A.
- the spring arrangement B and the scanning devices T are arranged in FIGS. 1 to 3 on the same side of the common axis 5 as the sensor arm parts 7a to 7c carrying the sensor feet 8a to 8c.
- each sensor arm part 7a to 7c is a molded part, for example made of plastic (injection molded part), in which a socket 9 for the sensor base 8a to 8c, a stop 14 for the Spring arrangement B and an actuator 13 for the scanning device T and the bearing bush for the axis 5 are structurally integrated.
- the sensor device S can have more or less than the three sensor arms A shown.
- Each sensor base 8a to 8c is, for example, a metal molding, e.g. a die-cast part, with a toe defining a continuous surface 10 and two approximately parallel and spaced legs 11, of which one leg 11 is inserted into the respective jack 9 of a sensor arm part 7a to 7c and is optionally secured therein by means of a securing element 20.
- the other leg 11 ends freely or is shortened to the required length.
- the width of each sensor foot 8a to 8c is larger than the distance between adjacent sensor arm parts 7a to 7c, e.g. made possible by a lateral displacement of the jack 9 of the sensor arm part 7b. If necessary, the sockets 9 on the sensor arm parts 7a to 7c can be adjusted in their longitudinal direction in order to be able to adjust the relative positions of the sensor feet 8a to 8c.
- Each sensor arm part 7a to 7c is assigned a stationary guide fork 12, between the prongs of which the sensor arm part 7a to 7c is guided or at least prevented from evading laterally.
- the stops 14 on the feeler arm parts 7a to 7c are located at the same distance from the axis 5 and have rounded surfaces 15 on the upper side, which bear against spring elements 16a to 16c of the spring arrangement E and absorb the pressure of these spring elements, around each feeler foot 8a to 8c Basic position (see the right sensor foot 8c in FIG. 2) is elastically yielding hold until it is displaced from the basic position by the lifting force of the thread Y.
- the spring elements 16a to 16c shown in FIG. 2 expediently belong to a single spring element which is anchored at 17 in the sensor housing 6.
- the spring elements 16a to 16c are spiral springs, expediently leaf springs, which project freely.
- the switching device D contains for each spring element 16a to 16c an individually adjustable damping extension 18, for example a screw, which is accessible from outside the sensor housing S and is aligned with a contact area 19 with the associated spring element 16a to 16c.
- the spring elements 16a to 16c do not come into contact with the damping extension 18. Only when a greater stroke of the feeler arm A should occur as a result of excessive dynamics does its spring element 16a to 16c come against the damping extension 18.
- the scanning devices T are arranged in brackets 24, for example on a circuit board B, which has through openings 32 for the legs 11 of the sensor feet 8a to 8c and carries conductor tracks and, if appropriate, other electrical or electronic components.
- each actuator 13 is a flag formed on the underside of the sensor arm part 7a to 7c, which according to Figs. 4 and 5 serves, inter alia, the basic position of each sensor arm part 7a to 7c in cooperation with a stationary stop 30 (Fig. 2) limit.
- the sensor arms A are extended beyond the common axis 5 arranged in the sensor housing 6 with sensor arm parts 7a 'to 7c', and the sensing device T is arranged on the side of the axis 5 facing away from the sensor feet 8a to 8c , for example in a yarn delivery device housing section 6 'of the boom 4 containing a board P' of the drive control of the yarn delivery device F.
- the brackets 24 or components of the scanning device can be arranged on this board P '.
- the stops 30 for the flags 13 on the feeler arm parts 7a 'to 7c' are formed by projections 33 which penetrate the circuit board P 'and are expediently formed in one piece with the thread delivery housing section 6' of the arm 4.
- the sensor arm parts 7a 'to 7c' can be designed as ballast masses G or (as shown) ballast masses G.
- the switching device D has permanently installed damping extensions 18 in FIG. 4.
- the preload of the spring arrangement B anchored at 17 can be adjusted centrally by means of an adjusting screw 34 which, for example, is arranged in the sensor housing 6 and is accessible from the outside through the arm 4.
- the sensor housing 6 is accommodated in the arm 4. 4, the same reference numerals are used for equivalent components already explained in connection with the previous figures.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Knitting Machines (AREA)
- Looms (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Feeding Of Articles To Conveyors (AREA)
- Unwinding Of Filamentary Materials (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19756243 | 1997-12-17 | ||
DE19756243A DE19756243A1 (de) | 1997-12-17 | 1997-12-17 | Fadenliefergerät |
PCT/EP1998/008298 WO1999030998A1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1040067A1 true EP1040067A1 (de) | 2000-10-04 |
EP1040067B1 EP1040067B1 (de) | 2002-08-07 |
Family
ID=7852334
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966967A Expired - Lifetime EP1047819B1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
EP98966362A Expired - Lifetime EP1040069B1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
EP98965279A Expired - Lifetime EP1040067B1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966967A Expired - Lifetime EP1047819B1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
EP98966362A Expired - Lifetime EP1040069B1 (de) | 1997-12-17 | 1998-12-17 | Fadenliefergerät |
Country Status (6)
Country | Link |
---|---|
US (1) | US6409114B1 (de) |
EP (3) | EP1047819B1 (de) |
KR (2) | KR100368460B1 (de) |
CN (3) | CN1108270C (de) |
DE (4) | DE19756243A1 (de) |
WO (3) | WO1999030999A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20050484A1 (it) * | 2005-07-14 | 2007-01-15 | L G L Electronics Spa | Unita' di controllo per dispositivi di frenatura del filato in alimentatori di trama per telai di tessitura, e procedura di sintonizzazione della stessa |
ITTO20050810A1 (it) * | 2005-11-18 | 2007-05-19 | Lgl Electronics Spa | Rilevatore di scorta trama per dispositivi alimentatori di trama |
ITTO20050893A1 (it) * | 2005-12-22 | 2007-06-23 | Lgl Electronics Spa | Rilevatore di scorta trama perfezionato per dispositivi alimentari di trama |
IT1402928B1 (it) * | 2010-12-13 | 2013-09-27 | Roj S R L | Porgitrama per telaio tessile |
CN113862848A (zh) * | 2021-10-28 | 2021-12-31 | 那坡同益新丝绸科技实业有限公司 | 一种用于细纱机的夹纱装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1345648A (en) * | 1971-04-29 | 1974-01-30 | Lawson Hemphill | Yarn storage feeders |
US3776480A (en) * | 1972-04-05 | 1973-12-04 | Lawson Hemphill | Yarn handling apparatus |
US3844504A (en) * | 1972-04-05 | 1974-10-29 | Lawson Hemphill | Method and apparatus for handling yarn |
US3759455A (en) * | 1972-09-28 | 1973-09-18 | Wesco Industries Corp | Filament feeding and storage device |
US4226379A (en) * | 1979-12-06 | 1980-10-07 | Leesona Corporation | Loom storage feeder improvement |
BE900492A (nl) * | 1984-09-04 | 1985-03-04 | Picanol Nv | Snelheidsregeling van inslagvoorafwikkelaar bij weefgetouwen. |
ITTO980520A1 (it) * | 1998-06-16 | 1999-12-16 | Lgl Electronics Spa | Perfezionamento ai dispositivi di sorveglianza della riserva di filato negli apparecchi alimentatori di trama a telai di tessitura. |
-
1997
- 1997-12-17 DE DE19756243A patent/DE19756243A1/de not_active Withdrawn
-
1998
- 1998-12-17 WO PCT/EP1998/008299 patent/WO1999030999A1/de active IP Right Grant
- 1998-12-17 DE DE59805136T patent/DE59805136D1/de not_active Expired - Fee Related
- 1998-12-17 DE DE59805134T patent/DE59805134D1/de not_active Expired - Lifetime
- 1998-12-17 WO PCT/EP1998/008301 patent/WO1999031308A2/de active IP Right Grant
- 1998-12-17 CN CN98812318A patent/CN1108270C/zh not_active Expired - Lifetime
- 1998-12-17 EP EP98966967A patent/EP1047819B1/de not_active Expired - Lifetime
- 1998-12-17 US US09/581,693 patent/US6409114B1/en not_active Expired - Fee Related
- 1998-12-17 DE DE59805557T patent/DE59805557D1/de not_active Expired - Fee Related
- 1998-12-17 CN CN98813135A patent/CN1098798C/zh not_active Expired - Lifetime
- 1998-12-17 EP EP98966362A patent/EP1040069B1/de not_active Expired - Lifetime
- 1998-12-17 KR KR10-2000-7006641A patent/KR100368460B1/ko not_active IP Right Cessation
- 1998-12-17 KR KR10-2000-7006640A patent/KR100368459B1/ko not_active IP Right Cessation
- 1998-12-17 EP EP98965279A patent/EP1040067B1/de not_active Expired - Lifetime
- 1998-12-17 WO PCT/EP1998/008298 patent/WO1999030998A1/de active IP Right Grant
- 1998-12-17 CN CN98812320A patent/CN1099364C/zh not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9930998A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999031308A2 (de) | 1999-06-24 |
DE59805557D1 (de) | 2002-10-17 |
DE19756243A1 (de) | 1999-06-24 |
EP1040069B1 (de) | 2002-08-07 |
CN1099364C (zh) | 2003-01-22 |
CN1285803A (zh) | 2001-02-28 |
CN1282303A (zh) | 2001-01-31 |
US6409114B1 (en) | 2002-06-25 |
KR20010033232A (ko) | 2001-04-25 |
EP1040067B1 (de) | 2002-08-07 |
EP1047819B1 (de) | 2002-09-11 |
DE59805136D1 (de) | 2002-09-12 |
CN1282304A (zh) | 2001-01-31 |
EP1047819A2 (de) | 2000-11-02 |
KR20010033231A (ko) | 2001-04-25 |
KR100368459B1 (ko) | 2003-01-24 |
WO1999031308A3 (de) | 1999-08-19 |
CN1098798C (zh) | 2003-01-15 |
DE59805134D1 (de) | 2002-09-12 |
WO1999030998A1 (de) | 1999-06-24 |
WO1999030999A1 (de) | 1999-06-24 |
EP1040069A1 (de) | 2000-10-04 |
CN1108270C (zh) | 2003-05-14 |
KR100368460B1 (ko) | 2003-01-24 |
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