EP0589944A1 - Yarn storage and feed device. - Google Patents
Yarn storage and feed device.Info
- Publication number
- EP0589944A1 EP0589944A1 EP92911701A EP92911701A EP0589944A1 EP 0589944 A1 EP0589944 A1 EP 0589944A1 EP 92911701 A EP92911701 A EP 92911701A EP 92911701 A EP92911701 A EP 92911701A EP 0589944 A1 EP0589944 A1 EP 0589944A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- accident
- storage
- delivery device
- activating
- 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
-
- 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
-
- 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
- B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/003—Arrangements for threading or unthreading the guide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/60—Details of processes or procedures
- B65H2557/65—Details of processes or procedures for diagnosing
-
- 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
Definitions
- the invention relates to a thread storage and delivery device of the type specified in the preamble of claim 1.
- the threading device has directional blow nozzles and air guide surfaces. If a thread break occurs, e.g. in a predetermined position, with the drive stopped, the free thread end of the broken thread or a reserve thread is brought into the guide opening by activating all directional blowing nozzles from the inlet into the thread storage and delivery device, through the winding device and then along a diversion with respect to the normal thread path along the storage drum . In the event of a partial accident with a thread break between the inlet and the storage drum, it is ignored that there may still be a proper supply of thread on the storage drum, from which the thread runs properly into the guide opening. The threading process involves unnecessary and time-consuming additional work. Continuous threading is only necessary if the thread supply on the storage drum is used up in the event of a total accident with a broken thread.
- the invention has for its object to provide a thread storage and delivery device of the type mentioned, in which unnecessary extra work in the accident elimination can be avoided and a partial accident with thread break can be remedied faster than a total accident.
- a thread storage and delivery device which is intelligent with regard to the elimination of an accident is to be created, which is able to classify the respective accident and to correct it in an accident-specific manner with minimal expenditure of time and, if appropriate, automatically.
- the object is achieved according to the invention by the features contained in the characterizing part of claim 1. If there is only a partial accident in which there is still a thread supply on the storage drum, the new thread end is only blown out a little from the outlet of the winding device, so that it can be knotted with the free end present on the storage drum, possibly by an automatic one Knotting device.
- the other existing directional blowing nozzles are not activated, so that the thread supply present on the storage drum is not destroyed, confused or eliminated and there is also no impairment of the thread in the further thread path downstream of the storage drum.
- the elimination of the partial accident can be carried out in a short time and without wasting or time for the removal of the existing thread supply.
- the embodiment according to claim 2 is particularly expedient. Thread storage and delivery devices which have already been in operation and have a compressed air threading device can be easily converted without serious structural modifications.
- a structurally simple embodiment emerges from claim 5.
- an operator decides whether there is a total accident or a partial accident. This person puts the changeover switch in the respective position so that the threading device is activated and the malfunction is remedied.
- An automatic and time-saving embodiment emerges from claim 6.
- the operating control device decides which directional blower nozzles are activated either on the basis of their accessible signals or, for example, by remote control or by the operation of an operator, in order to remedy a partial accident or a total accident.
- a particularly advantageous automatic embodiment is set out in claim 7.
- This training takes into account the acute endeavor to largely automate the operation of thread storage and delivery devices.
- the classification device uses signals which are still present during operation of the device and also after its shutdown, in order to classify the fault and to distinguish whether the thread end only has to be brought to the storage drum or immediately to the guide opening.
- Accident elimination is automatic and specific to the incident.
- T-vrvr + is the execution in accordance with the claim urgent? 3 because the
- Incident classification device anyway present . .- • »or uses signals generated specifically in the event of a malfunction, which indicate, for example, whether the storage drum is empty or still full.
- the winding element only needs to be placed in the total flow incidence threading position in the event of a total accident. at In the event of a partial accident, the winding member remains in a different position, which is favorable for this accident. For both cases, an intelligent system is created that is able to differentiate between the accidents and to fix each incident in the simplest way in a time-saving manner.
- the embodiment according to claim 10 is structurally simple, wherein the capacity of the microprocessor of the operation control device or of the operation control device itself is used for this additional purpose.
- Fig. 1 shows a longitudinal section of a first
- FIG. 3 shows a longitudinal section of a modified embodiment.
- a thread storage and delivery device 1 according to FIG. 1, for example for delivering a weft a rapier or projectile weaving machine, not shown, has a base body 4, which supports a drive motor for a hollow shaft 6. At the inlet end (inlet Z) of the base body 4, a cover 7 is fixed. A concentric ring 10 is arranged on the hollow shaft 6. A channel-shaped winding member 9 leads from the inside of the hollow shaft 6 to an outlet 11.
- permanent magnets 13 are aligned with permanent magnets 15, which are mounted in a storage drum 14 coaxial with the hollow shaft 6. This is rotatably mounted on the hollow shaft 6 (bearing 46) and is blocked by the permanent magnets 13, 15 against rotating.
- the storage drum 14 defines a storage area 17 for a thread supply V, which consists of adjacent, possibly separated turns of the thread Y applied by the winding element 9.
- An arm 20 of the base body 4 extends longitudinally and at a distance from the storage drum 14. It holds a central guide opening 22 and is used to accommodate thread sensors, not shown, which are used for operating control and monitoring and generate signals for a control device, not shown.
- the guide opening 22 can be a closed or slotted thread eyelet or the inlet of a main nozzle (not shown) of the weaving machine.
- the guide opening 22 can also be arranged on a holder separate from the base body 4.
- a compressed air transport system serves as the threading device E.
- a pressure source 25 for example a blower or a compressed air reservoir, is provided, which is activated via an activation device A and supply lines 26, 27, 28, and optionally 76, in which, for example, quantity or pressure control valves 30 are arranged, can be connected to a plurality of stationary directional blowing nozzles 32, 33, 37, 73 along the thread path.
- the first directional blowing nozzle 32 is arranged, which is aimed in the hollow shaft 6 in order to bring the thread Y through the hollow shaft 6 and the winding element 9 beyond the outlet 11.
- the next directional blowing nozzle 33 is arranged in the region of the orbit of the outlet 11 and is approximately axially aligned with a tube 52 which is arranged stationary on the arm 20 and is longitudinally or obliquely slit on the inside.
- the tube 52 passes through a thread brake F arranged on the arm 20, which rests on the storage drum 14 with brake elements 48.
- a further directional blowing nozzle 37 can be arranged, which is oriented approximately radially inwards.
- a further directional blowing nozzle 73 can be arranged in the guide opening 22, which is directed to the right in FIG. 1. At least the nozzle 73 can be dispensed with in many cases.
- a locking pin 61 can be inserted, for example by means of a magnet, into a recess 62 of the ring 10 in order to position the outlet 11 in the area of the directional blowing nozzle 27 when the thread Y has to be transported up to the guide opening 22 (total accident threading position) .
- the drive motor (not shown) is rotated forwards or backwards in the crawl gear by the operating control device until the extended locking pin 61 engages.
- a plurality of recesses 62 can be provided in the ring 10 in order to keep the outlet 11 in at least one predetermined position in the event of a total accident, even in the event of a partial accident. It is also possible to do this To electronically control positions by the control device in the drive motor.
- the activation device A comprises a valve 8 which can be switched back and forth between a blocking position and a passage position by means of an electromagnet 19 against spring force, and a switching device 18 which moves from a zero position N (blocking position of the valve 8) to a total accident position I and in a partial accident position II is switchable. Furthermore, the activation device A includes inhibition valves 16, 21 in the supply lines 28, 27. In position I, the valves 8, 16, 21 are switched to passage. In position II only the valve 8 is switched to passage, the valves 16, 21, however, are blocked.
- the activation device A can be operated manually in FIG. 1. It is possible to operate the activation device A remotely. Furthermore, it could also be operated by the operating control device, not shown.
- the thread Y runs from the inlet Z through the winding member 9, into the supply V and from the supply through the thread brake F and the guide opening 22 to the consumer.
- the thread sensors mentioned monitor, for example, the size of the supply V and transmit signals to the operating control device by means of which the drive is switched on or off or its speed is controlled as a function of the thread consumption and the associated change in size of the supply.
- Thread break occurs, which is indicated by not shown Thread sensors is reported, then the thread storage and delivery device 1 and the downstream consumer are stopped and the malfunction is reported.
- An operator checks whether the thread supply V is still present on the storage area 17 or not. In the event that the supply V is still present, it is a partial accident. To remedy this, the activation device A is switched to position I. By means of the directional blowing nozzle 32, the thread end of the broken thread or a reserve thread is blown over the outlet 11 and then linked to the thread end of the supply V, for which purpose an automatic splicing device is optionally provided. Then the activation device A is switched back to the neutral position N and operation is resumed.
- the partial accident can be remedied in any rotational position of the winding element 9.
- the winding member 9 is expediently positioned, for example by the locking pin 61, in a predetermined partial accident threading position.
- the operator decides to switch the activation device A to position II, so that when the winding element 9 is in the total accident threading position, all the directional blowing nozzles provided are activated and the thread end from the inlet Z to in blow the guide opening 22, with the aid of the tube 52, in order to avoid the obstacle of the thread brake F.
- the locking pin 61 is engaged. After the total accident has been remedied, the locking pin 61 is disengaged and operation is resumed.
- the threading device E works automatically.
- the construction of the device 1 ' essentially corresponds to that of FIG. 1.
- the activation device A has a switching valve 56 downstream of the solenoid valve 8, which can be switched by a magnet and in the one position only connects the supply line 26 to the pressure source 25, in the other switching position the supply line 26 and the supply lines 27, 28 to the Pressure source 25 connects.
- Arranged in the arm 20 are two thread sensors 50, 51 of any design (it would also be possible to use only one thread sensor for this purpose), which scan the size of the supply V on the storage area 17 and send signals to the one labeled 52, thermally insulated from the drive motor Transmit operation control device to indicate whether the stock is of a certain maximum or minimum size.
- the operating control device 52 controls the drive motor (not shown) in normal operation.
- the operating control device 52 contains a microprocessor 53, which processes operating-specific parameters and thread sensor signals.
- an accident classification device 54 is integrated in the operating control device 52 or the microprocessor 53, which includes a circuit 55 for controlling the switching magnet of the switching valve 56.
- the classifying device 54 determines whether it is a partial accident or a total accident, and for example on the basis of the signals from the thread sensors 50 and / or 51. This can be done, for example, by using the signals from the thread sensors 50, 51, which represent the presence of the supply V, to determine a partial accident, while missing signals from the thread sensors 50, 51 or signals of a separate thread sensor used in operation or only provided for an accident are used to determine a total accident with an empty memory area 17.
- the switching valve 56 is actuated or not, so that in the event of a total accident all supply lines 26, 27, 28 for activating all directional blowing nozzles are connected to the pressure source 25 as soon as the valve 8 is actuated, while in the event of a partial accident the switching valve 56 is not actuated and only the supply line 26 is connected.
- the drive motor is moved in the crawl gear until the locking pin 61 engages.
- the operation is resumed or the locking pin 61 is withdrawn beforehand.
- the activation device A is also switched off by switching the valve 8.
- the respective threading position of the winding member 9 could also be used as a decision criterion by the classifying device 53, because the total threading position is only sought in the event of a total accident, while in the event of a partial accident the thread end is blown in at every rotational position or in the partial accident threading position of the winding unit .
- Another thread sensor or a thread sensor used in the company could also help to make a decision own fault detector can be used.
- the thread storage and delivery device 1 "according to FIG. 3 differs from the two previously shown embodiments by a measuring device M, with which the length of the drawn-off thread is determined, for example for the delivery of the weft thread to a jet weaving machine, not shown.
- a measuring device M with which the length of the drawn-off thread is determined, for example for the delivery of the weft thread to a jet weaving machine, not shown.
- Ring nozzles 33 ', 35 and 37' are provided in order to bring the thread end emerging from the outlet 11 to the guide opening 22 by means of air curtains 39, 40, 38 regardless of the rotational position in which the winding element 9 is stopped.
- the measuring device M is annular and is mounted in the arm 20.
- the guide opening 22 is arranged on its own holder 75.
- stop elements 24 are movably supported over the circumference, of which a stop element 24 can be moved radially through the passage gap L to the storage body 14 by a switching magnet (not shown) from a retracted position and leaving a passage gap L, in order to be known Way to block the withdrawal of the thread when the desired withdrawal length is reached.
- a switching magnet not shown
- a funnel-shaped guide surface 42 in front of the ring nozzle 35 serves to guide the air curtain 39.
- the activation device A for the threading device E has a rotary slide valve 16 'which can be operated manually by means of a lever 18' and which has three switch positions. In the first switching position, the pressure source 25 of all supply lines 26, 27, 28 and additional supply line 29 to the ring nozzle 35 separated. In the second switching position, only the supply line 26 is connected to the pressure source 25. In the third switching position, all supply lines are connected to the pressure source 25.
- the rotary slide valve 16 is adjusted accordingly by an operator so that the accident is remedied.
- the activation devices according to FIGS. 1 and 2 could also be provided in order to enable semi-automatic or fully automatic operation.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Forwarding And Storing Of Filamentary Material (AREA)
- Looms (AREA)
- Refuse Collection And Transfer (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Prostheses (AREA)
Abstract
Un dispositif (1, 1', 1'') de stockage et de livraison du fil comprend un corps de base (4), un organe d'enroulement (9) du fil (Y), une surface de stockage (17) d'une réserve de fil (V) et un dispositif d'enfilement ayant un système de transport à air comprimé, ainsi qu'un dispositif d'actionnement de buses soufflantes directionnelles (32, 33, 33', 35, 37, 37', 73). Au moins une buse soufflante directionnelle (32) située entre l'entrée (Z) du dispositif de stockage et de livraison du fil et une sortie (11) de l'organe d'enroulement (9) peut être actionnée indépendamment des buses soufflantes directionnelles situées entre la sortie (11) et l'orifice de guidage (22), de sorte qu'en cas de dérangement partiel, pendant lequel une réserve de fil (V) reste sur la surface de stockage (17), l'extrémité du fil ne soit soufflée que jusqu'à une position située sous la sortie (11).A device (1, 1 ', 1' ') for storing and delivering the yarn comprises a basic body (4), a winding member (9) for the yarn (Y), a storage surface (17) d 'a thread reserve (V) and a threading device having a compressed air transport system, as well as a device for actuating directional blower nozzles (32, 33, 33', 35, 37, 37 ', 73). At least one directional blower nozzle (32) located between the inlet (Z) of the wire storage and delivery device and an outlet (11) of the winding member (9) can be operated independently of the directional blower nozzles located between the outlet (11) and the guide hole (22), so that in the event of a partial fault, during which a reserve of wire (V) remains on the storage surface (17), the end of the wire is blown only to a position below the outlet (11).
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9101941 | 1991-06-18 | ||
SE9101941A SE9101941D0 (en) | 1991-06-18 | 1991-06-18 | WIRE STORAGE AND FEEDING DEVICE |
DE4120413A DE4120413A1 (en) | 1991-06-18 | 1991-06-20 | Loom yarn store and delivery - automatically registers maturity of yarn fault for the necessary corrective action |
DE4120413 | 1991-06-20 | ||
PCT/EP1992/001362 WO1992022693A1 (en) | 1991-06-18 | 1992-06-16 | Yarn storage and feed device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0589944A1 true EP0589944A1 (en) | 1994-04-06 |
EP0589944B1 EP0589944B1 (en) | 1995-12-06 |
Family
ID=25904726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92911701A Expired - Lifetime EP0589944B1 (en) | 1991-06-18 | 1992-06-16 | Yarn storage and feed device |
Country Status (5)
Country | Link |
---|---|
US (1) | US5441087A (en) |
EP (1) | EP0589944B1 (en) |
JP (1) | JP3190958B2 (en) |
DE (2) | DE9117045U1 (en) |
WO (1) | WO1992022693A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19533547A1 (en) * | 1995-09-11 | 1997-03-13 | Iro Ab | Pneumatic valve device for a thread delivery device and thread delivery device |
DE19542045A1 (en) * | 1995-11-10 | 1997-05-15 | Iro Ab | Thread delivery device |
DE19609095A1 (en) * | 1996-03-08 | 1997-09-11 | Iro Ab | Thread delivery device |
DE19649220A1 (en) * | 1996-11-27 | 1998-05-28 | Iro Ab | Thread delivery device with a thread brake |
SE9800226D0 (en) * | 1998-01-26 | 1998-01-26 | Iro Ab | Fadenliefersystem |
IT1302068B1 (en) * | 1998-02-26 | 2000-07-20 | Lgl Electronics Spa | METHOD AND DEVICE FOR PNEUMATIC THREADING OF WEFT EQUIPMENT TO TEXTILE MACHINES. |
DE10014623A1 (en) * | 2000-03-24 | 2001-09-27 | Iro Patent Ag Baar | Yarn feed control for a shuttleless loom has a structured inching action on the feed motor to maintain yarn tension until activated for insertion according to the weaving pattern |
ITTO20010569A1 (en) * | 2001-06-14 | 2002-12-14 | Lgl Electronics Spa | DEVICE OF REGULARIZATION OF THE DEVELOPMENT OF THE SPOOLS OF FILODELLA THE WEFT RESERVE, FROM THE DRUM OF THE WEFT FEEDERS FOR YOU |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8602724A (en) * | 1986-10-29 | 1988-05-16 | Picanol Nv | METHOD AND APPARATUS FOR RESTORING THE WIRE FEED IN WEAVING MACHINES IN THE INTERRUPTION BETWEEN THE BOBBIN AND THE WIRE STOCK. |
DE3876629T2 (en) * | 1987-09-25 | 1993-04-08 | Iro Ab | THREAD STORAGE AND DELIVERY DEVICE. |
DE8712946U1 (en) * | 1987-09-25 | 1987-12-10 | Aktiebolaget Iro, Ulricehamn | Thread storage and delivery device |
CH680863A5 (en) * | 1989-03-17 | 1992-11-30 | Sulzer Ag | |
BE1003558A3 (en) * | 1989-09-19 | 1992-04-21 | Picanol Nv | BLOW device for weft threads in weaving machines. |
IT1231057B (en) * | 1989-09-27 | 1991-11-12 | Roy Electrotex Spa | WEFT FEEDER FOR FLUID JET WEAVING FRAMES. |
DE4007131C2 (en) * | 1990-03-07 | 1999-12-30 | Iro Patent Ag Baar | Delivery device for running threads |
-
1991
- 1991-06-20 DE DE9117045U patent/DE9117045U1/en not_active Expired - Lifetime
-
1992
- 1992-06-16 EP EP92911701A patent/EP0589944B1/en not_active Expired - Lifetime
- 1992-06-16 US US08/167,937 patent/US5441087A/en not_active Expired - Fee Related
- 1992-06-16 JP JP51074492A patent/JP3190958B2/en not_active Expired - Fee Related
- 1992-06-16 WO PCT/EP1992/001362 patent/WO1992022693A1/en active IP Right Grant
- 1992-06-16 DE DE59204616T patent/DE59204616D1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9222693A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1992022693A1 (en) | 1992-12-23 |
DE59204616D1 (en) | 1996-01-18 |
DE9117045U1 (en) | 1995-05-11 |
JP3190958B2 (en) | 2001-07-23 |
US5441087A (en) | 1995-08-15 |
EP0589944B1 (en) | 1995-12-06 |
JPH06510824A (en) | 1994-12-01 |
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