EP0538307B1 - Thread storage and feed device - Google Patents

Thread storage and feed device Download PDF

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Publication number
EP0538307B1
EP0538307B1 EP91912450A EP91912450A EP0538307B1 EP 0538307 B1 EP0538307 B1 EP 0538307B1 EP 91912450 A EP91912450 A EP 91912450A EP 91912450 A EP91912450 A EP 91912450A EP 0538307 B1 EP0538307 B1 EP 0538307B1
Authority
EP
European Patent Office
Prior art keywords
storage
thread
delivery device
basic body
gap
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
Application number
EP91912450A
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German (de)
French (fr)
Other versions
EP0538307A1 (en
Inventor
Tore Claesson
Lars-Berno Fredriksson
Pär JOSEFSSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iro AB
Original Assignee
Iro AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE9002409A external-priority patent/SE9002409D0/en
Priority claimed from SE9003780A external-priority patent/SE9003780D0/en
Priority claimed from SE9003796A external-priority patent/SE9003796D0/en
Priority claimed from SE9101226A external-priority patent/SE9101226D0/en
Priority claimed from SE9101234A external-priority patent/SE9101234D0/en
Priority claimed from SE9101978A external-priority patent/SE9101978D0/en
Application filed by Iro AB filed Critical Iro AB
Publication of EP0538307A1 publication Critical patent/EP0538307A1/en
Application granted granted Critical
Publication of EP0538307B1 publication Critical patent/EP0538307B1/en
Anticipated expiration legal-status Critical
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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
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • 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
    • D03D47/362—Drum-type weft feeding devices with yarn retaining devices, e.g. stopping pins
    • D03D47/363—Construction or control of the yarn retaining devices

Definitions

  • the invention relates to a thread storage and delivery device of the type specified in the preamble of claim 1.
  • the weft thread length released by the stopping device corresponds to an integer multiple of the circumference of the storage area.
  • the diameter of the storage area is changed during an operational stop.
  • the stop device for the perfect stop function of the stop device and for the correct work, mostly thread sensors integrated in the stop device, a certain gap width of the passage gap must be strictly observed.
  • the stop device that is clamped to the holder during operation is radially adjusted again.
  • a serious disadvantage is the dependency of the operational reliability of the thread storage and delivery device on the ability and Will of the operator who undertakes the adjustment of the gap width under disturbing environmental conditions, for example in a weaving machine hall, whereby the gap width specified by the manufacturer of the thread storage and delivery device for the perfect function is often not adhered to because the operators are overwhelmed.
  • the operational reliability of the thread storage and delivery device therefore suffers from such unmanageable influences over which the manufacturer has no influence.
  • the invention has for its object to provide a thread storage and delivery device of the type mentioned, in which the diameter and gap width adjustment are easier, faster and more accurate than before, the gap width no longer of care and skill Third depends, and in which an adjustment of the storage area diameter is possible even during operation.
  • the built-in gap width holding device ensures the exact gap width during or after diameter adjustments of the storage area. If an operator makes the adjustment at all, the risk of an incorrect gap width is averted because the adjustment is made with the means deemed appropriate by the manufacturer.
  • the built-in gap width holding device the basic body of the stop device can be adjusted synchronously with the adjustment of the diameter of the storage area, then automatic diameter adjustment or diameter changes during operation are also possible in order to make a consumer-dependent fine adjustment to the desired value of the trigger length to reach.
  • the reliability of the thread storage and delivery device is guaranteed at all times in terms of the gap width of the passage gap and is no longer dependent on unforeseeable influences.
  • the components of the gap width holding device are structurally integrated where they find space and perform their function best.
  • a preferred, structurally simple embodiment is set out in claim 3.
  • the gap gauge is in the operation of the thread end storage and delivery device in the passive position so that it does not hinder the thread passage. If adjustment is required, the gap gauge is extended to set the gap width precisely. By making contact between the gap gauge and the storage body, the gap width is kept independent of the diameter. This is a mechanical and simple solution that is inexpensive, robust and yet very reliable. The setting is very quick and still precise.
  • the aspect of claim 5 is important here.
  • the correct gap width depends on the thread quality, the elasticity or the thread number.
  • the adjustable effective length of the gap gauge takes this requirement into account in a simple manner.
  • a particularly useful embodiment is set out in claim 6.
  • the coupling takes the base body of the stop device with it when the storage body diameter is adjusted and adjusts the gap width. In this way, no time is wasted for the adjustment of the stop device during or after a diameter adjustment of the storage area because the base body follows the storage area in each case with the gap width. A fine adjustment can also be made during operation.
  • the embodiment according to claim 7 is particularly advantageous because the floating guidance of the base body and the holding of the gap width by the gap gauge do not require any adjustment work on the stop device when the diameter of the storage area is adjusted. With a non-contact gap gauge, the adjustment can be made even during the Operation.
  • the embodiment according to claim 8 is structurally simple and reliable.
  • the pressure element engages mechanically on the storage surface and in this way holds the base body at the correct distance from the storage surface.
  • the base body is immovably fixed during operation.
  • the released clamping device allows adjustment of the stop device when the diameter of the storage area is adjusted.
  • the embodiment according to claim 10 is particularly expedient because it enables one-hand operation in practice and without an auxiliary tool and measuring device.
  • the one-hand operation is limited in the embodiment according to claim 11 to the rotation of the actuating shaft. If the lock is released, the pressure element is extended so that the radially displaceable base body can be brought into the required position or even moves automatically, in which the gap width is correct. He can drive by gravity or by spring loading or by the movement of the storage area or simply by pressing on the actuating shaft. With a renewed rotary movement of the actuating shaft, the arrester clamps the base body, the pressure element being pulled back again and the device being ready for operation.
  • a wear-free and precisely working embodiment emerges from claim 14.
  • the gap width which is to be changed depending on the thread quality or other operating parameters, is set by the adjustment of the effective length of the pressure ram.
  • the pull magnet creates intimate contact between the pressure element and the storage area, which ensures the gap width. Furthermore, a non-positive coupling acts between the base body and the storage surface during the adjustment process, which moves the base body into the correct position with the adjustment movement of the storage surface.
  • an electromagnetic clamping device could also be used, which is released and adjusted synchronously with the drive signal of the electric motor Completion of the adjustment is indented again. When the adjustment is complete, the return spring releases the temporary coupling between the pressure tappet and the pull magnet.
  • a further embodiment that functions in a contactless manner is apparent from claim 17.
  • the base body When adjusting the diameter, the base body is taken along.
  • the correct gap width results from the balance between the tensile or compressive force and the balance force, which offers the possibility of changing the gap width by means of the easily implementable change in the forces to be brought into balance or one of the forces.
  • the force balance positions the base body during operation; but does not disturb the thread passage in the ch the passage gap. If the magnet or the magnets generate a force pulling the base body towards the storage area, then the balance force must be directed away from the storage area. If, on the other hand, the magnet or the aligned magnets generate a compressive force, the balance force pushes the base body towards the storage body.
  • a clamping device is expediently provided for operation.
  • An electromagnetic clamping device is available, which is released when the electromagnets are excited for the tensile or compressive force against spring loading and, after the base body has been adjusted, is re-engaged by releasing the spring force.
  • claims 18 and 19 relate to optional or additive options for adjusting the gap width.
  • the embodiment of claim 20 is structurally simple.
  • the spring element expediently has a spring characteristic that is as constant as possible, so that the balance force remains as possible over the entire stroke of the base body.
  • the embodiment according to claim 21 is particularly useful because the balance force can be adjusted and varied very precisely pneumatically, hydraulically or magnetically, and the advantage is achieved that the value of the balance force is independent of the radial position of the base body.
  • a particularly expedient embodiment with automatic adjustment of the stop device can be seen from claim 22.
  • the distance sensor is set to a certain signal value at which the positive drive is stopped. If the gap width changes, the positive drive is operated in one direction or the other until the gap width is reached again. During operation, the positive drive ensures that the base body is properly fixed on the bracket.
  • the operating control device is for setting the required diameter of the storage area responsible and at the same time also for the correct observance of the gap width, which it carries out by synchronously adjusting the base body of the stop device. With the operating control device, it is also possible, for example, to make fine adjustments to the trigger length during operation.
  • the embodiment of claim 25 is particularly advantageous, in which the diameter of the storage area is adjusted during operation with simultaneous adjustment of the stop device in order to provide the correct trigger length depending on the consumer.
  • This embodiment leads to a fundamental simplification when the system is started up: consumers and thread storage and delivery device.
  • the trigger length is roughly set to the theoretically correct value.
  • An automatic fine adjustment of the diameter is then carried out by the communication then taking place during operation between a thread sensor of the consumer, for example an arrival sensor or a target take-off length sensor of a machine, and the thread storage and delivery device.
  • the thread sensor then gives deviations between the actual draw-off length and the desired draw-off length, which represent the necessary signals to the operating control device, which then adjusts. It downtimes are saved, which is of particular importance in the industrial application of the devices, and the operational reliability is high since the gap width is not subject to influences which are unforeseen by the manufacturer.
  • the embodiment according to claim 26 is advantageous because, in the event of failure or malfunction of one stop device, it is possible to switch to another stop device.
  • the correct gap width is ensured by means of the ring body and the gap width holding device and is removed from the unpredictable influence of third parties.
  • a thread storage and delivery device F has a housing 1, an operating control device 2 having an input part 2a, for example for a drive motor 3, and a storage body 4 which is blocked against a rotational movement and which defines a rotationally symmetrical storage area 5.
  • an operating control device 2 having an input part 2a, for example for a drive motor 3, and a storage body 4 which is blocked against a rotational movement and which defines a rotationally symmetrical storage area 5.
  • a holder 6 for at least one stop device S, which cooperates with a stop element 7 with the storage area 5 in order to control the withdrawal of a thread Y from the storage area 5 in cycles.
  • a passage gap 8 with a certain gap width W is provided between the stop device S and the storage area 5.
  • the diameter of the storage area 5 can be changed by means of an adjusting device 9, which together forms the storage area 5 defining radially adjustable support elements 14 radially adjustable in the storage body 4.
  • the adjusting device 9 can have a drive motor, not shown, which is connected to the operating control device
  • a feed device which conveys the thread turns on the storage surface 5 either against one another or with thread separation to the take-off side.
  • the feed device can either have a wobbling disc behind the thread supply or feed elements (15 in FIG. 3) lying between the support elements 14 and drivable for the feed movement.
  • the gap width W is the same in both cases.
  • a gap width holding device H is provided for the gap width W, the components of which are built into the holder 6 and / or the stop device S and / or the storage area 5.
  • the thread Y runs to the left, is then guided to the outside and deposited in turns on the storage surface 5 by means of a winding element (not shown).
  • the thread Y bears against the stop element 7 and extends from it via a thread guide element to a consumer C, for example to a jet weaving machine, in which a certain thread length is delivered with each weaving cycle.
  • a thread sensor A monitors the arrival of the thread end or the correct length for each entry.
  • the sensor A can with the Operation control device 2 of the thread storage and delivery device F are in signal-transmitting connection in order to change the diameter of the storage area 5 during operation while maintaining the gap width W such that the free end of the thread entered comes to lie exactly in the correct place.
  • the motor 3 drives a hollow shaft 10 in the housing 1, on which a winding element 11 leads the thread Y obliquely outwards and to the storage area 5.
  • Magnets 13 hold the storage body 4 rotatably mounted on the hollow shaft 10.
  • the support elements 14 are assigned feed elements 15, which are driven by an inclined and eccentric hub 12 for a feed and separation movement.
  • the stop device S which contains a drive 16 for the stop element 7, is radially displaceable with a base body G on radial guides 17 of the holder 6.
  • radial shafts 18 support the support elements 14, which engage with non-illustrated engagement elements in a face thread 20 of an adjusting disk 19 rotatable on the storage body 4.
  • the adjusting ring disk 19 can be rotated in both directions by means of a drive motor 22 and a reduction gear 21 in order to adjust all the support elements 14 together radially inwards or radially outwards.
  • the adjustment device 9 can also be operated manually.
  • the gap width holding device H is built into the thread storage and delivery device F and contains a gap gauge B, which is either mechanical or non-contact, and as the base body G in the adjustment of the support elements 14 entraining Coupling can be formed.
  • An upwardly projecting extension 23 is used for manual control or actuation of the gap width holding device H, for example, it can be designed similar to that in FIG. 7 similar to that of FIG. 7.
  • a mechanism M is provided for adjusting the radial position of the base body G.
  • the base body G is connected to a slide 24, which is guided on the radial guides 17 of the holder 6 and carries an extension arm 26, which carries a clamping device Q and the gap gauge B.
  • the gap gauge B has an approximately radially displaceable pressure element D, e.g. a plunger 25, the head part 27 of which is held by a return spring 25b on a cam track 30 of an actuating cam 29.
  • the plunger 25 can be extended downward into the tactile position I shown, in which it engages with its free end 25a on an abutment 38 of the support element 14 which can be adjusted in the direction of a double arrow 39.
  • the actuating cam 29 is seated in a rotationally fixed manner on an actuating shaft 28 which is mounted on the arm 26 so as to be rotatable and longitudinally displaceable and which carries an actuating lever 31.
  • actuating shaft 28 At the other end of the actuating shaft 28, a thread or engaging element 33 is provided which engages in a counter thread or a counter engaging element 33 in the slide 24 in such a way that the actuating shaft 28 is displaced longitudinally when it rotates.
  • a fixed disk 34 is arranged on the actuating shaft 28, on which a clamping spring 35 is supported, which can be tensioned against a lock 36, which can be brought into engagement on the radial guides 17.
  • a spring 37 can be arranged which acts on the slide 24 radially inwards.
  • the carriage 24 is clamped to the holder 6 by means of the clamping device Q.
  • the pressure element D is withdrawn.
  • the thread Y can pass through the passage gap 8 freely.
  • the actuating lever 31 is pivoted until the actuating cam 29 extends the pressure element D into the tactile position I shown.
  • the actuating shaft 28 is displaced in the longitudinal direction, the clamping spring 35 is relieved and the engagement of the arrester 36 is relaxed.
  • the support element 14 carrying the abutment 38 pushes the carriage 24 outwards.
  • the actuating lever 31 is turned back and the lock 36 is pressed against the guide 17.
  • the pressure element D is withdrawn and the passage gap 8 is free.
  • the cam track 31 expediently overlaps with the rotary region in which the arrester 36 already engages on the guides 17. This ensures that the clamping device Q already begins to clamp the carriage 24 before the pressure element D is withdrawn.
  • the gap width W is held by the attack of the pressure element D on the abutment 38 of the support element 14. It would also be conceivable to use the mechanism M electromagnetically and as a function of the drive signals of the motor 22 of the actuating device To operate 9 of Fig. 3, or by electric motor.
  • FIG. 5 illustrates the gap width holding device H with its mechanism M according to FIG. 4 in the base body G of the stop device S.
  • at least one thread sensor E is arranged in the base body G, the correct gap width W being important for its correct functioning .
  • a length adjuster 40 is provided in the pressure element D (plunger 25 with a free end 25a and head part 27), e.g. a threaded connection that enables the effective length of the pressure element D and thus the gap width W, e.g. depending on the thread quality.
  • a disc 43 which is arranged on the actuating shaft 28 and serves to act on a guide part 41 of the holder 6, serves as the arrester.
  • a pull magnet 66 e.g. a permanent magnet may be provided, which ensures that the gap gauge B produces a coupling between the support element 14 and the base body G which is effective in both adjustment directions.
  • a holding force is built up. This holding force is smaller than the force of the return spring 25b, but larger than the displacement resistance of the base body G on the holder 6.
  • a positive drive Z is provided for the base body G, with which the base body G is relative to the holder 6 is adjustable.
  • the radial guides 17 are rotatable threaded spindles 45 which are anchored in the holder 6.
  • a drive motor 43 for example a direct current motor or stepper motor, which drives the threaded spindles 45, which screw the base body G, via a reduction gear 44.
  • the base body G has a lateral extension 46 at the bottom, in which, in this embodiment, a non-contact distance sensor 47, for example a Hall element, is arranged, which is aligned either with a counter sensor or with a scannable abutment 48 in the support element 14.
  • the distance sensor 46 is connected to the motor 43 via a control line 49 and is set to a signal value which corresponds to the gap width. If the gap width W changes when the diameter of the storage surface 5 is adjusted, then the base body G is moved by means of the positive drive Z until the gap width is correct again.
  • a proximity initiator and possibly even an analog proximity initiator could also be provided as the distance sensor 47.
  • a plurality of stop devices S distributed in the circumferential direction are provided, which are either used optionally for setting the draw-off length or which, in the event of damage, enable a change to another stop device.
  • the stop device S shown in solid lines contains a non-contact gap gauge B in the gap width holding device H.
  • a magnet 49 is arranged in the extension 46, which is aligned with a counter bearing or a counter magnet 50 in the support element 14.
  • a chamber 52 is provided in the base body G, into which protrudes a pipe 51, which can be optionally connected to a pressure source 55 or a tank 56 via a line 53 and a switching valve 54, a control device 58, 59 controlling the switching valve 54.
  • a force generator N which applies a balance force P to the base body G, while a magnetic force K is generated between the magnets 49, 50.
  • the balance force P and the magnetic force K are opposed to each other and adjusted so that there is an equilibrium in the gap width.
  • the base body G is floating on the radial guides 17.
  • the value of the balance force P can be changed in order to adjust the gap width.
  • the balance force P pushes the base body G towards the moving support element 14 in order to maintain the gap width W.
  • the base body G is positioned in its floating guidance by the balance between the magnetic force K and the balance force P.
  • the magnetic force K pushes the base body outwards against the balance force P.
  • 8a and 8b are a front and side view of FIG. 7.
  • the gap width W illustrates as a graph the setting of the gap width W by means of the equilibrium between the forces P, K. Force units are plotted on the vertical axis, while the horizontal axis represents the gap width.
  • the magnetic force for example a repulsive force between the magnets, varies along a curved curve.
  • the gap width results, in the example shown 0.8 mm. From the diagram it is easy to see that one Changing the constant balance force P each gap width can be adjusted.
  • Fig. 9 illustrates another principle for generating the balance force P on the base body G.
  • An energy store N e.g. a clock spring 60 acts on an arm 61 in a clockwise direction, which rests on a cross pin 62 in the base body G.
  • the energy accumulator N is mounted on the holder 6.
  • the balance force P counteracts the magnetic force K (repulsive force).
  • FIG. 11 a further variation of the energy accumulator N for generating the balance force P can be seen, in which the clock spring 16 shown in FIG. 9 is mounted in the holder 6 and acts on a pinion 63 in the clockwise direction, which has a rack 64 combs on a rod 65 of the base body G. It can also be seen that a plurality of magnets 49 and 50 can be arranged in the extension 46 and in the support element 14.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Transmission Devices (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)

Abstract

A thread storage and feed device (F), in particular for weft threads, has a housing (1) on which a storage body (4) with a storage surface of variable diameter for a thread supply is arranged. The rotating thread can be drawn out of the storage body (4). The storage surface is formed of approximately axial, rod-shaped support elements which can be adjusted radially in the storage body. At least one radially adjustable stop device is arranged on a holder (6) and delimits, together with the storage surface, (5) a gap (8) for the passage of the thread. A built-in gap-width locking device (H) for the gap (8) maintains the gap width (W) constant during coarse and fine adjustments of the diameter even during operation.

Description

Die Erfindung betrifft eine Fadenspeicher- und -liefervorrichtung der im Oberbegriff des Patentanspruchs 1 angegebenen Art.The invention relates to a thread storage and delivery device of the type specified in the preamble of claim 1.

Bei in der Praxis vorbenutzten Schußfadenspeicher- und -liefervorrichtungen dieser Art entspricht die von der Stopvorrichtung zum Abzug freigegebene Schußfadenlänge einem ganzzahligen Vielfachen des Umfangs der Speicherfläche. Zur Einstellung einer bestimmten Schußfadenlänge, zu einer sich während des Betriebs aufgrund einer Abweichung von einer Soll-Schußfadenlänge notwenig werdenden Anpassung und zur Umstellung auf eine neue Schußfadenlänge wird bei einem Betriebsstop der Durchmesser der Speicherfläche verändert. Für den Fadendurchgang, für die einwandfreie Stopfunktion der Stopvorrichtung und für das korrekte Arbeiten zumeist in die Stopvorrichtung integrierter Fadensensoren muß eine bestimmte Spaltweite des Durchgangsspalts genau eingehalten werden. Bei oder nach einer Durchmesseränderung wird die die im Betrieb an der Halterung festgespannte Stopvorrichtung erneut radial justiert. Dazu werden den Grundkörper haltende Spannschrauben gelöst und die Spaltweite mittels eines Meßwerkzeuges eingestellt. Dies ist eine zeitaufwendige und muhselige Prozedur, die großes Geschick und Geduld voraussetzt. Ein schwerwiegender Nachteil ist die Abhängigkeit der Betriebszuverlässigkeit der Fadenspeicher- und -liefervorrichtung vom Können und Willen der Bedienungsperson, die die Einstellung der Spaltweite unter störenden Umgebungsbedingungen, z.B. in einer Webmaschinenhalle vornimmt, wobei oftmals die vom Hersteller der Fadenspeicher- und -liefervorrichtung für die einwandfreie Funktion vorgegebene Spaltweite nicht eingehalten wird, weil die Bedienungspersonen überfordert sind. Die Betriebszuverlässigkeit der Fadenspeicher- und -liefervorrichtung leidet deshalb unter solchen nicht beherrschbaren Einflüssen, auf die der Hersteller keinen Einfluß hat.In the case of weft thread storage and delivery devices of this type which have been used in practice, the weft thread length released by the stopping device corresponds to an integer multiple of the circumference of the storage area. In order to set a specific weft thread length, to make an adjustment necessary during operation due to a deviation from a desired weft thread length and to change over to a new weft thread length, the diameter of the storage area is changed during an operational stop. For the thread passage, for the perfect stop function of the stop device and for the correct work, mostly thread sensors integrated in the stop device, a certain gap width of the passage gap must be strictly observed. During or after a change in diameter, the stop device that is clamped to the holder during operation is radially adjusted again. For this purpose, the clamping screws holding the base body are loosened and the gap width is set using a measuring tool. This is a time-consuming and tedious procedure that requires great skill and patience. A serious disadvantage is the dependency of the operational reliability of the thread storage and delivery device on the ability and Will of the operator who undertakes the adjustment of the gap width under disturbing environmental conditions, for example in a weaving machine hall, whereby the gap width specified by the manufacturer of the thread storage and delivery device for the perfect function is often not adhered to because the operators are overwhelmed. The operational reliability of the thread storage and delivery device therefore suffers from such unmanageable influences over which the manufacturer has no influence.

Es ist allerdings bekannt (EP A2-253 359, EP-A1-290 380, EP-A1-363 980), die Stopvorrichtung und einen dieser zugeordneten Teil der Speicherfläche bei einer Durchmesserverstellung unverstellt zu lassen, und dafür die Speicherfläche exzentrisch zur Aufwickel-Kreisbahn zu verformen. Daraus resultieren jedoch unerwünschte Spannungen in den Windungen und kann der ablaufende Faden zum Schwingen angeregt werden.However, it is known (EP A2-253 359, EP-A1-290 380, EP-A1-363 980) to leave the stop device and a part of the storage area assigned to it unadjusted when the diameter is adjusted, and to do this the storage area is eccentric for winding Deform circular path. However, this results in undesirable tensions in the windings and the running thread can be excited to vibrate.

Der Erfindung liegt die Aufgabe zugrunde, eine Fadenspeicher- und -liefervorrichtung der eingangs genannten Art zu schaffen, bei der die Durchmesser- und Spaltweiten-Einstellung einfacher, rascher und genauer durchführbar sind als bisher, wobei die Spaltweite nicht mehr von der Sorgfalt und dem Geschick Dritter abhängt, und bei der eine Verstellung des Speicherflächendurchmessers gegebenenfalls sogar während des Betriebs möglich ist.The invention has for its object to provide a thread storage and delivery device of the type mentioned, in which the diameter and gap width adjustment are easier, faster and more accurate than before, the gap width no longer of care and skill Third depends, and in which an adjustment of the storage area diameter is possible even during operation.

Die gestellte Aufgabe wird erfindungsgemäß mit den im kennzeichnenden Teil des Patentanspruchs 1 angegebenen Merkmalen gelöst.The object is achieved according to the invention with the features specified in the characterizing part of patent claim 1.

Die eingebaute Spaltweiten-Haltevorrichtung gewährleistet die exakte Spaltweite bei oder nach Durchmesserverstellungen der Speicherfläche. Falls überhaupt eine Bedienungsperson die Verstellung vornimmt, wird die Gefahr einer fehlerhaften Spaltweite gebannt, weil die Einstellung mit den vom Hersteller für zweckmäßig gehaltenen Mitteln erfolgt. Mittels der eingebauten Spaltweiten-Haltevorrichtung kann die Verstellung des Grundkörpers der Stopvorrichtung synchron mit der Verstellung des Durchmessers der Speicherfläche erfolgen, dann sind sogar eine automatische Durchmesser-Einstellung oder Durchmesser-Änderungen während des Betriebes möglich, um eine verbraucherabhängige Feineinstellung auf den Sollwert der Abzugslänge zu erreichen. Die Zuverlässigkeit der Fadenspeicher- und -liefervorrichtung ist, was die Spaltweite des Durchgangsspaltes betrifft, jederzeit garantiert und nicht mehr von unverhersehbaren Einflüssen abhängig.The built-in gap width holding device ensures the exact gap width during or after diameter adjustments of the storage area. If an operator makes the adjustment at all, the risk of an incorrect gap width is averted because the adjustment is made with the means deemed appropriate by the manufacturer. By means of the built-in gap width holding device, the basic body of the stop device can be adjusted synchronously with the adjustment of the diameter of the storage area, then automatic diameter adjustment or diameter changes during operation are also possible in order to make a consumer-dependent fine adjustment to the desired value of the trigger length to reach. The reliability of the thread storage and delivery device is guaranteed at all times in terms of the gap width of the passage gap and is no longer dependent on unforeseeable influences.

Bei der Ausführungsform gemäß Anspruch 2 sind die Komponenten der Spaltweiten-Haltevorrichtung dort baulich eingegliedert, wo sie Platz finden und ihre Funktion am besten ausführen.In the embodiment according to claim 2, the components of the gap width holding device are structurally integrated where they find space and perform their function best.

Eine bevorzugte, baulich einfache Ausführungsform geht aus Anspruch 3 hervor. Die Spaltlehre ist im Betrieb der Fadendspeicher- und -liefervorrichtung in der Passivstellung, so daß sie den Fadendurchgang nicht behindert. Ist eine Verstellung erforderlich, dann wird die Spaltlehre ausgefahren, um die Spaltweite genau einzustellen. Indem zwischen der Spaltlehre und dem Speicherkörper eine Berührung hergestellt wird, wird unabhängig vom Durchmesser die Spaltweite gehalten. Dies ist eine mechanische und einfache Lösung, die preiswert, robust und trotzdem sehr zuverlässig ist. Die Einstellung erfolgt sehr rasch und trotzdem präzise.A preferred, structurally simple embodiment is set out in claim 3. The gap gauge is in the operation of the thread end storage and delivery device in the passive position so that it does not hinder the thread passage. If adjustment is required, the gap gauge is extended to set the gap width precisely. By making contact between the gap gauge and the storage body, the gap width is kept independent of the diameter. This is a mechanical and simple solution that is inexpensive, robust and yet very reliable. The setting is very quick and still precise.

Eine zweckmäßige Ausführungsvariante geht aus Anspruch 4 hervor. Die berührungslos überbrückende Spaltlehre bietet die Möglichkeit, die Verstellung während des Betriebs vorzunehmen, da der Durchgangsspalt immer frei bleibt.An expedient embodiment variant can be seen from claim 4. The contactless bridging gap gauge offers the possibility of making the adjustment during operation, since the passage gap always remains free.

Wichtig ist dabei der Gesichtspunkt von Anspruch 5. Die richtige Spaltweite hängt nämlich von der Fadenqualität, der Elastizität oder der Fadennummer ab. Die verstellbare Wirklänge der Spaltlehre trägt dieser Forderung auf einfache Weise Rechnung.The aspect of claim 5 is important here. The correct gap width depends on the thread quality, the elasticity or the thread number. The adjustable effective length of the gap gauge takes this requirement into account in a simple manner.

Eine besonders zweckmäßige Ausführungsform geht aus Anspruch 6 hervor. Die Kupplung nimmt den Grundkörper der Stopvorrichtung bei einer Verstellung des Speicherkörperdurchmessers mit und stellt die Spaltweite ein. Auf diese Weise wird für die Einstellung der Stopvorrichtung bei oder nach einer Durchmesserverstellung der Speicherfläche keine Zeit vergeudet, weil der Grundkörper-jeweils mit der Spaltweite der Speicherfläche folgt. Auch kann während des Betriebs eine Feineinstellung vorgenommen werden.A particularly useful embodiment is set out in claim 6. The coupling takes the base body of the stop device with it when the storage body diameter is adjusted and adjusts the gap width. In this way, no time is wasted for the adjustment of the stop device during or after a diameter adjustment of the storage area because the base body follows the storage area in each case with the gap width. A fine adjustment can also be made during operation.

Besonders vorteilhaft ist ferner die Ausführungsform gemäß Anspruch 7, weil die schwimmende Führung des Grundkörpers und das Halten der Spaltweite durch die Spaltlehre bei einer Durchmesserverstellung der Speicherfläche keine Einstellarbeiten an der Stopvorrichtung erfordern. Bei einer berührungslosen Spaltlehre läßt sich die Verstellung sogar während des Betriebs vornehmen.Furthermore, the embodiment according to claim 7 is particularly advantageous because the floating guidance of the base body and the holding of the gap width by the gap gauge do not require any adjustment work on the stop device when the diameter of the storage area is adjusted. With a non-contact gap gauge, the adjustment can be made even during the Operation.

Die Ausführungsform gemäß Anspruch 8 ist baulich einfach und zuverlässig. Das Druckelement greift mechanisch an der Speicherfläche ein und hält auf diese Weise den Grundkörper im richtigen Abstand von der Speicherfläche.The embodiment according to claim 8 is structurally simple and reliable. The pressure element engages mechanically on the storage surface and in this way holds the base body at the correct distance from the storage surface.

Bei der Ausführungsform gemäß Anspruch 9 wird der Grundkörper im Betrieb unbeweglich festgelegt. Die gelöste Klemmvorrichtung läßt bei einer Durchmesserverstellung der Speicherfläche das Einstellen der Stopvorrichtung zu.In the embodiment according to claim 9, the base body is immovably fixed during operation. The released clamping device allows adjustment of the stop device when the diameter of the storage area is adjusted.

Besonders zweckmäßig ist die Ausführungsform gemäß Anspruch 10, weil sie praktisch und ohne Hilfswerkzeug und Meßgerät eine Einhand-Bedienung ermöglicht.The embodiment according to claim 10 is particularly expedient because it enables one-hand operation in practice and without an auxiliary tool and measuring device.

Die Einhand-Bedienung beschrähkt sich bei der Ausführungsform gemäß Anspruch 11 auf die Verdrehung der Betätigungswelle. Ist der Feststeller gelöst, dann ist das Druckelement ausgefahren, so daß der radial verschiebbare Grundkörper in die jeweils erforderliche Position bringbar ist oder sogar selbsttätig fährt, in der die Spaltweite stimmt. Fahren kann er durch Schwerkraft oder durch eine Federbelastung bzw. durch die Bewegung der Speicherfläche oder einfach durch Druck auf die Betätigungsswelle. Mit einer erneuten Drehbewegung der Betätigungswelle klemmt der Feststeller den Grundkörper fest, wobei das Druckelement wieder zurückgezogen wird und die Vorrichtung betriebsbereit ist.The one-hand operation is limited in the embodiment according to claim 11 to the rotation of the actuating shaft. If the lock is released, the pressure element is extended so that the radially displaceable base body can be brought into the required position or even moves automatically, in which the gap width is correct. He can drive by gravity or by spring loading or by the movement of the storage area or simply by pressing on the actuating shaft. With a renewed rotary movement of the actuating shaft, the arrester clamps the base body, the pressure element being pulled back again and the device being ready for operation.

Zusätzliche Maßnahmen zum Koppeln des Druckelements mit dem Stellnocken sind bei der Ausführungsform gemäß Anspruch 12 vermieden, weil die Rückstellfeder das Druckelement in die Passivstellung zwingt, sobald die Wirkung des Stellnockens aufhört.Additional measures for coupling the pressure element to the actuating cam are in the embodiment according to Claim 12 avoided because the return spring forces the pressure element into the passive position as soon as the action of the actuating cam stops.

Ein besonders wichtiger Gesichtspunkt geht aus Anspruch 13 hervor. Durch diese Überlappung zwischen der Taststellung des Druckelements und der Haltestellung der Klemmvorrichtung wird erreicht, daß bei der Einstellung des Grundkörpers das Druckelement nicht schon in die Passivstellung bewegt wird, ehe die Klemmvorrichtung den Grundkörper wieder ordnungsgemäß festlegt.A particularly important aspect emerges from claim 13. This overlap between the tactile position of the pressure element and the holding position of the clamping device ensures that when the base body is set, the pressure element is not already moved into the passive position before the clamping device properly fixes the base body again.

Eine verschleißfrei und exakt arbeitende Ausführungsform geht aus Anspruch 14 hervor.A wear-free and precisely working embodiment emerges from claim 14.

Bei der Ausführungsform von Anspruch 15 wird durch die Einstellung der Wirklänge des Druckstößels die Spaltweite eingestellt, die in Abhängigkeit von der Fadenqualität oder anderen Betriebsparametern zu ändern ist.In the embodiment of claim 15, the gap width, which is to be changed depending on the thread quality or other operating parameters, is set by the adjustment of the effective length of the pressure ram.

Eine weitere wichtige Ausführungsform geht aus Anspruch 16 hervor. Der Zugmagnet schafft innigen Kontakt zwischen dem Druckelement und der Speicherfläche, der die Spaltweite sicherstellt. Ferner wirkt während des Einstellvorgangs eine kraftschlüssige Kupplung zwischen dem Grundkörper und der Speicherfläche, die den Grundkörper mir der e Verstellbewegung der Speicherfläche in die richtige Position bewegt. Bei einer mittels eines Elektromotors angetriebenen Verstellvorrichtung für den Durchmesser der Speicherfläche könnte auch eine elektromagnetische Klemmvorrichtung benutzt werden, die synchron mit dem Antriebssignal des Elektromotors gelöst und nach Abschluß der Verstellung wieder eingerückt wird. Ist die Verstellung abgeschlossen, dann löst die Rückstellfeder die vorübergehende Kupplung zwischen dem Druckstößel und dem Zugmagneten.Another important embodiment is set out in claim 16. The pull magnet creates intimate contact between the pressure element and the storage area, which ensures the gap width. Furthermore, a non-positive coupling acts between the base body and the storage surface during the adjustment process, which moves the base body into the correct position with the adjustment movement of the storage surface. In the case of an adjusting device for the diameter of the storage area driven by an electric motor, an electromagnetic clamping device could also be used, which is released and adjusted synchronously with the drive signal of the electric motor Completion of the adjustment is indented again. When the adjustment is complete, the return spring releases the temporary coupling between the pressure tappet and the pull magnet.

Eine weitere, berührungslos funktionierende Ausführungsform geht aus Anspruch 17 hervor. Bei einer Durchmesserverstellung wird der Grundkörper mitgenommen. Die richtige Spaltweite resultiert aus dem Gleichgewicht zwischen der Zug- oder Druckkraft und der Balancekraft, was die Möglichkeit bietet, eine Veränderung der Spaltweite durch die leicht durchführbare Veränderung der ins Gleichgewicht zu bringenden Kräfte oder einer der Kräfte vorzunehmen. Das Kraftgleichgewicht positioniert im Betrieb den Grundkörper; stört aber den Fadendurchgang im ch den Durchgangsspalt nicht. Erzeugt der Magnet bzw. erzeugen die Magneten eine den Grundkörper zur Speicherfläche ziehende Kraft, dann muß die Balancekraft von der Speicherfläche weggerichtet sein. Erzeugt der Magnet bzw. erzeugen die aufeinander ausgerichteten Magnete hingegen eine Druckkraft, dann drängt die Balancekraft den Grundkörper zum Speicherkörper. Bei erregbaren Elektromagneten, deren Kräfte nur bei Erregung wirksam sind, ist zweckmäßigerweise eine Klemmvorrichtung für den Betrieb vorgesehen. Es bietet sich eine elektromagnetische Klemmvorrichtung an, die bei Erregen der Elektromagneten für die Zug- oder Druckkraft gegen Federbelastung gelöst und nach erfolgter Einstellung des Grundkörpers durch Freigeben der Federkraft wieder eingerückt wird.A further embodiment that functions in a contactless manner is apparent from claim 17. When adjusting the diameter, the base body is taken along. The correct gap width results from the balance between the tensile or compressive force and the balance force, which offers the possibility of changing the gap width by means of the easily implementable change in the forces to be brought into balance or one of the forces. The force balance positions the base body during operation; but does not disturb the thread passage in the ch the passage gap. If the magnet or the magnets generate a force pulling the base body towards the storage area, then the balance force must be directed away from the storage area. If, on the other hand, the magnet or the aligned magnets generate a compressive force, the balance force pushes the base body towards the storage body. In the case of excitable electromagnets, the forces of which are only effective when excited, a clamping device is expediently provided for operation. An electromagnetic clamping device is available, which is released when the electromagnets are excited for the tensile or compressive force against spring loading and, after the base body has been adjusted, is re-engaged by releasing the spring force.

Die Ausführungsformen der Ansprüche 18 und 19 betreffen fakultative oder additive Möglichkeiten zum Verstellen der Spaltweite. Wird der Abstand zwischen den Magneten oder zwischen einem Magneten und seinem magnetisch ansprechenden Gegenteil verändert, dann ändert sich bei gleichbleibender Balancekraft die Spaltweite. Bei gleichbleibender Magnetkraft führt eine Änderung der Balancekraft zur Verstellung der Spaltweite.The embodiments of claims 18 and 19 relate to optional or additive options for adjusting the gap width. The distance between the magnets or changed between a magnet and its magnetically attractive opposite, then the gap width changes while the balance force remains the same. If the magnetic force remains the same, a change in the balance force leads to the adjustment of the gap width.

Baulich einfach ist die Ausführungsform von Anspruch 20. Das Federelement hat zweckmäßigerweise eine möglichst kontante Federcharakteristik, damit die Balancekraft möglichst über den gesamten Hubweg des Grundkörpers gleich bleibt.The embodiment of claim 20 is structurally simple. The spring element expediently has a spring characteristic that is as constant as possible, so that the balance force remains as possible over the entire stroke of the base body.

Besonders zweckmäßig ist die Ausführungsform gemäß Anspruch 21, weil sich pneumatisch, hydraulisch oder magnetisch die Balancekraft sehr genau einstellen und variieren läßt, und der Vorteil erreicht wird, daß der Wert der Balancekraft von der radialen Position des Grundkörpers unabhängig ist.The embodiment according to claim 21 is particularly useful because the balance force can be adjusted and varied very precisely pneumatically, hydraulically or magnetically, and the advantage is achieved that the value of the balance force is independent of the radial position of the base body.

Eine besonders zweckmäßige Ausführungsform mit automatischer Einstellung der Stopvorrichtung geht aus Anspruch 22 hervor. Der Abstandssensor ist auf einen bestimmten Signalwert eingestellt, bei dem der Zwangsantrieb steht. Ändert sich die Spaltweite, dann wird der Zwangsantrieb in der einen oder anderen Richtung solange betätigt, bis die Spaltweite wieder erreicht ist. Der Zwangsantrieb sorgt im Betrieb für die ordnungsgemäße Feststellung des Grundkörpers an der Halterung.A particularly expedient embodiment with automatic adjustment of the stop device can be seen from claim 22. The distance sensor is set to a certain signal value at which the positive drive is stopped. If the gap width changes, the positive drive is operated in one direction or the other until the gap width is reached again. During operation, the positive drive ensures that the base body is properly fixed on the bracket.

Eine besonders wichtige, teilautomatische Ausführungsform geht aus Anspruch 23 hervor. Die Betriebssteuervorrichtung ist für die Einstellung des jeweils erforderlichen Durchmessers der Speicherfläche verantwortlich und gleichzeitig auch für die ordnungsgemäße Einhaltung der Spaltweite, was sie durch synchrones Verstellen des Grundkörpers der Stopvorrichtung ausführt. Mit der Betriebssteuervorrichtung ist es auch möglich, z.B. Feineinstellungen der Abzugslänge während des Betriebs vorzunehmen.A particularly important, partially automatic embodiment is set out in claim 23. The operating control device is for setting the required diameter of the storage area responsible and at the same time also for the correct observance of the gap width, which it carries out by synchronously adjusting the base body of the stop device. With the operating control device, it is also possible, for example, to make fine adjustments to the trigger length during operation.

Eine zweckmäßige und automatische Ausführungsform geht ferner aus Anspruch 24 hervor. Sobald die Umfangslänge oder Abzugslänge eingegeben worden ist, nimmt die Betriebssteuervorrichtung die Durchmessereinstellung der Speicherfläche und der Stopvorrichtung vor.An expedient and automatic embodiment is also apparent from claim 24. Once the circumferential length or trigger length has been entered, the operation control device adjusts the diameter of the storage area and the stop device.

Besonders vorteilhaft ist die Ausführungsform von Anspruch 25, bei der während des Betriebes eine Anpassung des Durchmessers der Speicherfläche bei gleichzeitiger Einstellung der Stopvorrichtung erfolgt, um verbraucherabhängig die richtige Abzugslänge bereitzustellen. Diese Ausfürungsform führt zu einer grundlegenden Vereinfachung bei Betriebsaufnahme des Systems: Verbraucher und Fadenspeicher- und -liefervorrichtung. Es wird z.B. die Abzugslänge durch Eingabe zunächst grob auf den theoretisch richtigen Wert eingestellt. Durch die dann während des Betriebs stattfindende Kommunikation zwischen einem Fadensensor des Verbrauchers, z.B. eines Ankunftssensors oder eines Soll-Abzugslängensensors einer Maschine, und der Fadenspeicher- und -liefervorrichtung wird dann eine automatische Feineinstellung des Durchmessers vorgenommen. Es gibt dann der Fadensensor Abweichungen zwischen der Ist-Abzugslänge und der Soll-Abzugslänge repräsentierende die notwendigen Signale an die Betriebssteuervorrichtung, die dann nachstellt. Es werden Stillstandszeiten gespart, was in der industriellen Anwendung der Vorrichtungen von besonderer Bedeutung ist, wobei die Betriebszuverlässigkeit hoch ist, da die Spaltweite keinen vom Hersteller unvorsehbären Einflüssen unterliegt.The embodiment of claim 25 is particularly advantageous, in which the diameter of the storage area is adjusted during operation with simultaneous adjustment of the stop device in order to provide the correct trigger length depending on the consumer. This embodiment leads to a fundamental simplification when the system is started up: consumers and thread storage and delivery device. For example, the trigger length is roughly set to the theoretically correct value. An automatic fine adjustment of the diameter is then carried out by the communication then taking place during operation between a thread sensor of the consumer, for example an arrival sensor or a target take-off length sensor of a machine, and the thread storage and delivery device. The thread sensor then gives deviations between the actual draw-off length and the desired draw-off length, which represent the necessary signals to the operating control device, which then adjusts. It downtimes are saved, which is of particular importance in the industrial application of the devices, and the operational reliability is high since the gap width is not subject to influences which are unforeseen by the manufacturer.

Schließlich ist die Ausführungsform gemäß Anspruch 26 vorteilhaft, weil bei Ausfall oder Fehlfunktion einer Stopvorrichtung auf eine andere Stopvorrichtung gewechselt werden kann. Mittels des Ringkörpers und der Spaltweiten-Haltevorrichtung ist die richtige Spaltweite sichergestellt und dem unvorhersehbaren Einfluß Dritter entzogen.Finally, the embodiment according to claim 26 is advantageous because, in the event of failure or malfunction of one stop device, it is possible to switch to another stop device. The correct gap width is ensured by means of the ring body and the gap width holding device and is removed from the unpredictable influence of third parties.

Anhand der Zeichnung werden Ausführungsformen des Erfindungsgegenstandes erläutert. Es zeigen:

Fig. 1 + 2
schematische Seitenansichten einer Fadenspeicher- und -liefervorrichtung in zwei Einstellagen,
Fig. 3
einen Teillängsschnitt einer konstruktiv durchgebildeten Ausfürungsform,
Fig. 4
einen Perspektivansicht einer Spaltweiten-Haltevorrichtung, wie sie in den Fig. 1 - 3 verwendbar ist,
Fig. 5
einen Schnitt durch eine mit einer Spaltweiten-Haltevorrichtung versehene Stopvorrichtung,
Fig. 6
eine schematische Stirnansicht einer weiteren Ausführungsform,
Fig. 7
einen Schnitt einer weiteren Ausführungsform,
Fig. 8a,b
einander zugeordneten Ansichten einer weiteren Ausführungsform,
Fig. 9
eine Detailvariante, teilweise im Schnitt,
Fig. 10
ein Schaubild, und
Fig. 11
einen Schnitt durch eine weitere Ausführungsform.
Embodiments of the subject matter of the invention are explained with the aid of the drawing. Show it:
Fig. 1 + 2
schematic side views of a thread storage and delivery device in two setting positions,
Fig. 3
a partial longitudinal section of a constructively designed embodiment,
Fig. 4
3 shows a perspective view of a gap width holding device, as can be used in FIGS. 1-3,
Fig. 5
3 shows a section through a stop device provided with a gap width holding device,
Fig. 6
1 shows a schematic end view of a further embodiment,
Fig. 7
2 shows a section of a further embodiment,
8a, b
mutually associated views of a further embodiment,
Fig. 9
a detailed variant, partly in section,
Fig. 10
a graph, and
Fig. 11
a section through a further embodiment.

Eine Fadenspeicher- und -liefervorrichtung F gemäß den Fig. 1 und 2 weist ein Gehäuse 1, eine einen Eingabeteil 2a aufweisende Betriebssteuervorrichtung 2, u.a. für einen Antriebsmotor 3, sowie einen gegen eine Drehbewegung blockierten Speicherkörper 4 auf, der eine rotationssymmetrische Speicherfläche 5 definiert. Am Gehäuse 1 ist eine Halterung 6 für wenigstens eine Stopvorrichtung S vorgesehen, die mit einem Stopelement 7 mit der Speicherfläche 5 zusammenarbeitet, um den Abzug eines Fadens Y von der Speicherfläche 5 taktweise zu steuern. Zwischen der Stopvorrichtung S und der Speicherfläche 5 ist ein Durchgangsspalt 8 mit einer bestimmten Spaltweite W vorgesehen. Der Durchmesser der Speicherfläche 5 ist mittels einer Verstellvorrichtung 9 änderbar, die gemeinsam die Speicherfläche 5 definierende, im Speicherkörper 4 radial verstellbare Auflageelemente 14 radial verstellt. Die Verstellvorrichtung 9 kann einen nicht gezeigten Antriebsmotor aufweisen, der an die Betriebssteuervorrichtung 2 angeschlossen ist.A thread storage and delivery device F according to FIGS. 1 and 2 has a housing 1, an operating control device 2 having an input part 2a, for example for a drive motor 3, and a storage body 4 which is blocked against a rotational movement and which defines a rotationally symmetrical storage area 5. Provided on the housing 1 is a holder 6 for at least one stop device S, which cooperates with a stop element 7 with the storage area 5 in order to control the withdrawal of a thread Y from the storage area 5 in cycles. A passage gap 8 with a certain gap width W is provided between the stop device S and the storage area 5. The diameter of the storage area 5 can be changed by means of an adjusting device 9, which together forms the storage area 5 defining radially adjustable support elements 14 radially adjustable in the storage body 4. The adjusting device 9 can have a drive motor, not shown, which is connected to the operating control device 2.

Ferner ist eine nicht-dargestellte Vorschubeinrichtung vorgesehen, die die Fadenwindungen auf der Speicherfläche 5 entweder aneinanderliegend oder mit Fadenseparation zur Abzugsseite fördert. Die Vorschubeinrichtung kann entweder eine taumelnde Scheibe hinter dem Fadenvorrat oder zwischen den Auflagelementen 14 liegende und zur Vorschubbewegung antreibbare Vorschubelemente ((15 in Fig. 3) aufweisen.Furthermore, a feed device, not shown, is provided, which conveys the thread turns on the storage surface 5 either against one another or with thread separation to the take-off side. The feed device can either have a wobbling disc behind the thread supply or feed elements (15 in FIG. 3) lying between the support elements 14 and drivable for the feed movement.

In Fig. 1 ist die Speicherfläche 5 mit kleinem Durchmesser gezeigt, in Fig. 2 hingegen mit großem Durchmesser. In beiden Fällen ist die Spaltweite W gleich. Fur die Spaltweite W ist eine Spaltweiten-Haltevorrichtung H vorgesehen, deren Komponenten in die Halterung 6 und/oder die Stopvorrichtung S und/oder die Speicherfläche 5 eingebaut sind.1 shows the storage area 5 with a small diameter, in FIG. 2, however, with a large diameter. The gap width W is the same in both cases. A gap width holding device H is provided for the gap width W, the components of which are built into the holder 6 and / or the stop device S and / or the storage area 5.

Gemäß Fig. 2 läuft der Faden Y links, wird dann nach außen geführt und mittels eines nicht-dargestellten Aufwickelorgans in Windungen auf der Speicherfläche 5 abgelegt. Der Faden Y liegt am Stopelement 7 an und erstreckt sich von diesem über ein Fadenleitorgan zu einem Verbraucher C, z.B. zu einer Düsen-Webmaschine, in der bei jedem Webtakt eine bestimmte Fadenlänge geliefert wird. Ein Fadensensor A überwacht bei jedem Eintrag das Ankommen des Fadenendes bzw. die korrekte Länge. Der Sensor A kann mit der Betriebssteuervorrichtung 2 der Fadenspeicher- und -liefervorrichtung F in signalübertragender Verbindung stehen, um während des Betriebs unter Einhalten der Spaltweite W den Durchmesser der Speicherfläche 5 so zu ändern, daß das freie Ende des eingetragenen Fadens jeweils genau an der richtigen Stelle zu liegen kommt.According to FIG. 2, the thread Y runs to the left, is then guided to the outside and deposited in turns on the storage surface 5 by means of a winding element (not shown). The thread Y bears against the stop element 7 and extends from it via a thread guide element to a consumer C, for example to a jet weaving machine, in which a certain thread length is delivered with each weaving cycle. A thread sensor A monitors the arrival of the thread end or the correct length for each entry. The sensor A can with the Operation control device 2 of the thread storage and delivery device F are in signal-transmitting connection in order to change the diameter of the storage area 5 during operation while maintaining the gap width W such that the free end of the thread entered comes to lie exactly in the correct place.

Gemäß Fig. 3 treibt im Gehäuse 1 der Motor 3 eine Hohlwelle 10, auf der ein Aufwickelorgan 11 den Faden Y schräg nach außen und zur Speicherfläche 5 führt. Magneten 13 halten drehbar auf der Hohlwelle 10 gelagerten Speicherkörper 4 fest. Den Auflageelementen 14 sind Vorschubelemente 15 zugeordnet, die von einer Schräg- und Exzenternabe 12 zu einer Vorschub- und Separationsbewegung angetrieben werden. Die Stopvorrichtung S, die einen Antrieb 16 für das Stopelement 7 enthält, ist mit einem Grundkörper G an radialen Führungen 17 der Halterung 6 radial verschiebbar. Im Speicherkörper 4 der Stellvorrichtung 9 lagern radiale Schächte 18 die Auflageelemente 14, die mit nicht-dargestellten Eingriffselementen in ein Plangewinde 20 einer am Speicherkörper 4 drehbaren Stellringscheibe 19 eingreifen. Die Stellringscheibe 19 ist mittels eines Antriebsmotors 22 und ein Untersetzungsgetriebe 21 in beiden Richtungen drehbar, um alle Auflageelemente 14 gemeinsam radial nach innen oder radial nach außen zu verstellen. Die Verstellvorrichtung 9 kann auch manuell bedient werden.According to FIG. 3, the motor 3 drives a hollow shaft 10 in the housing 1, on which a winding element 11 leads the thread Y obliquely outwards and to the storage area 5. Magnets 13 hold the storage body 4 rotatably mounted on the hollow shaft 10. The support elements 14 are assigned feed elements 15, which are driven by an inclined and eccentric hub 12 for a feed and separation movement. The stop device S, which contains a drive 16 for the stop element 7, is radially displaceable with a base body G on radial guides 17 of the holder 6. In the storage body 4 of the actuating device 9, radial shafts 18 support the support elements 14, which engage with non-illustrated engagement elements in a face thread 20 of an adjusting disk 19 rotatable on the storage body 4. The adjusting ring disk 19 can be rotated in both directions by means of a drive motor 22 and a reduction gear 21 in order to adjust all the support elements 14 together radially inwards or radially outwards. The adjustment device 9 can also be operated manually.

Die Spaltweiten-Haltevorrichtung H ist in die Fadenspeicher- und -liefervorrichtung F eingebaut und enthält eine Spaltlehre B, die entweder mechanischer oder berührungsloser Art ist, und als den Grundkörper G bei der Verstellung der Auflageelemente 14 mitnehmende Kupplung ausgebildet sein kann. Ein nach oben ragender Fortsatz 23 dient zu einer manuellen Kontrolle oder Betätigung der Spaltweiten-Haltevorrichtung H, z.B. so ähnlich ausgebildet sein kann, wie die in Fig. 7 ähnlich er von Fig. 7.The gap width holding device H is built into the thread storage and delivery device F and contains a gap gauge B, which is either mechanical or non-contact, and as the base body G in the adjustment of the support elements 14 entraining Coupling can be formed. An upwardly projecting extension 23 is used for manual control or actuation of the gap width holding device H, for example, it can be designed similar to that in FIG. 7 similar to that of FIG. 7.

Bei der mechanischen Spaltweiten-Haltevorrichtung H gemäß Fig. 4 ist zum Einstellen der radialen Position des Grundkörpers G ein Mechanismus M vorgesehen. Der Grundkörper G ist mit einem Schlitten 24 verbunden, der an den Radialführungen 17 der Halterung 6 geführt ist und einen Ausleger 26 trägt, der eine Klemmvorrichtung Q und die Spaltlehre B trägt. Die Spaltlehre B weist ein in etwa radial im Ausleger 26 verschiebbares Druckelement D, z.B. ein Stößel 25, auf, dessen Kopfteil 27 durch eine Rückstellfeder 25b an einer Nockenbahn 30 eines Stellnockens 29 gehalten wird. Der Stößel 25 ist nach unten in die gezeigte Taststellung I ausfahrbar, in der er mit seinem freien Ende 25a an einem Widerlager 38 des in Richtung eines Doppelpfeiles 39 verstellbaren Auflageelements 14 angreift. Der Stellnocken 29 sitzt drehfest auf einer Betätigungswelle 28, die am Ausleger 26 dreh- und längsverschiebbar gelagert ist und einen Betätigungshebel 31 trägt. Am anderen Ende der Betätigungswelle 28 ist ein Gewinde oder Eingriffselement 33 vorgesehen, das in ein Gegengewinde oder ein Gegeneingriffselement 33 im Schlitten 24 eingreift, derart, daß die Betätigungswelle 28 bei einer Drehung längsverschoben wird.In the mechanical gap width holding device H according to FIG. 4, a mechanism M is provided for adjusting the radial position of the base body G. The base body G is connected to a slide 24, which is guided on the radial guides 17 of the holder 6 and carries an extension arm 26, which carries a clamping device Q and the gap gauge B. The gap gauge B has an approximately radially displaceable pressure element D, e.g. a plunger 25, the head part 27 of which is held by a return spring 25b on a cam track 30 of an actuating cam 29. The plunger 25 can be extended downward into the tactile position I shown, in which it engages with its free end 25a on an abutment 38 of the support element 14 which can be adjusted in the direction of a double arrow 39. The actuating cam 29 is seated in a rotationally fixed manner on an actuating shaft 28 which is mounted on the arm 26 so as to be rotatable and longitudinally displaceable and which carries an actuating lever 31. At the other end of the actuating shaft 28, a thread or engaging element 33 is provided which engages in a counter thread or a counter engaging element 33 in the slide 24 in such a way that the actuating shaft 28 is displaced longitudinally when it rotates.

Auf der Betätigungswelle 28 ist eine Festscheibe 34 angeordnet, an der sich eine Klemmfeder 35 abstützt, die gegen einen Feststeller 36 spannbar ist, der an den Radialführungen 17 zum Angriff bringbar ist. Zwischen der Halterung 6 und dem Schlitten 24 kann eine Feder 37 angeordnet sein, die den Schlitten 24 radial nach innen beaufschlagt.A fixed disk 34 is arranged on the actuating shaft 28, on which a clamping spring 35 is supported, which can be tensioned against a lock 36, which can be brought into engagement on the radial guides 17. Between the holder 6 and the slide 24, a spring 37 can be arranged which acts on the slide 24 radially inwards.

Im Betrieb der Fadenspeicher- und -liefervorrichtung ist der Schlitten 24 mittels der Klemmvorrichtung Q an der Halterung 6 festgeklemmt. Das Druckelement D ist zurückgezogen. Der Faden Y kann den Durchgangsspalt 8 frei passieren. Bei einer Durchmesserverstellung der Speicherfläche 5 wird der Betätigungshebel 31 verschwenkt, bis der Stellnocken 29 das Druckelement D in die gezeigte Taststellung I ausfährt. Gleichzeitig wird die Betätigungswelle 28 in Längsrichtung verschoben, die Klemmfeder 35 entlastet und der Angriff des Feststellers 36 gelockert. Wird der Durchmesser der Speicherfläche 5 vergrößert, dann schiebt das das Widerlager 38 tragende Auflageelement 14 den Schlitten 24 nach außen. Ist der neue Durchmesser der Speicherfläche 5 erreicht, dann wird der Betätigungshebel 31 zurückgedreht und der Feststeller 36 gegen die Führung 17 gepreßt. Dabei wird das Druckelement D zurückgezogen und der Durchgangsspalt 8 frei.In operation of the thread storage and delivery device, the carriage 24 is clamped to the holder 6 by means of the clamping device Q. The pressure element D is withdrawn. The thread Y can pass through the passage gap 8 freely. With a diameter adjustment of the storage surface 5, the actuating lever 31 is pivoted until the actuating cam 29 extends the pressure element D into the tactile position I shown. At the same time, the actuating shaft 28 is displaced in the longitudinal direction, the clamping spring 35 is relieved and the engagement of the arrester 36 is relaxed. If the diameter of the storage surface 5 is increased, then the support element 14 carrying the abutment 38 pushes the carriage 24 outwards. When the new diameter of the storage surface 5 is reached, the actuating lever 31 is turned back and the lock 36 is pressed against the guide 17. The pressure element D is withdrawn and the passage gap 8 is free.

Zweckmäßigerweise überlagert sich die Nockenbahn 31 mit dem Drehbereich, in dem der Feststeller 36 schon an den Führungen 17 zum Angriff gelangt. Damit wird sichergestellt, daß die Klemmvorrichtung Q den Schlitten 24 bereits festzuklemmen beginnt, ehe das Druckelement D zurückgezogen wird. Durch den Angriff des Druckelementes D am Widerlager 38 des Auflageelementes 14 wird die Spaltweite W gehalten. Es wäre auch denkbar, den Mechanismus M elektromagnetisch und in Abhängigkeit von den Antriebssignalen des Motors 22 der Stellvorrichtung 9 von Fig. 3 zu betätigen, oder elektromotorisch.The cam track 31 expediently overlaps with the rotary region in which the arrester 36 already engages on the guides 17. This ensures that the clamping device Q already begins to clamp the carriage 24 before the pressure element D is withdrawn. The gap width W is held by the attack of the pressure element D on the abutment 38 of the support element 14. It would also be conceivable to use the mechanism M electromagnetically and as a function of the drive signals of the motor 22 of the actuating device To operate 9 of Fig. 3, or by electric motor.

Fig. 5 verdeutlicht die Spaltweiten-Haltevorrichtung H mit ihrem Mechanismus M gemäß Fig. 4 im Grundkörper G der Stopvorrichtung S. Im Grundkörper G ist zusätzlich zum Antrieb des Stopelements 7 wenigstens ein Fadensensor E angeordnet, für dessen einwandfreie Funktion die richtige Spaltweite W wichtig ist.FIG. 5 illustrates the gap width holding device H with its mechanism M according to FIG. 4 in the base body G of the stop device S. In addition to driving the stop element 7, at least one thread sensor E is arranged in the base body G, the correct gap width W being important for its correct functioning .

Zusätzlich ist gegenüber der Ausführungsform von Fig. 4 im Druckelement D (Stößel 25 mit freiem Ende 25a und Kopfteil 27), ein Längenversteller 40 vorgesehen, z.B. eine Gewindeverbindung, die es ermöglicht, die Wirklänge des Druckelementes D und damit die Spaltweite W, z.B. fadenqualitätsabhängig, zu verändern. Als Feststeller dient eine auf der Betätigungswelle 28 angeordnete Scheibe 43, die an einem Führungsteil 41 der Halterung 6 zum Angriff bringbar ist.In addition to the embodiment of Fig. 4, a length adjuster 40 is provided in the pressure element D (plunger 25 with a free end 25a and head part 27), e.g. a threaded connection that enables the effective length of the pressure element D and thus the gap width W, e.g. depending on the thread quality. A disc 43, which is arranged on the actuating shaft 28 and serves to act on a guide part 41 of the holder 6, serves as the arrester.

Im freien Ende 25a des Stößels 25 und/oder im Bereich des Widerlagers 38 des Auflageelements 14 kann ein Zugmagnet 66, z.B. ein Permanentmagnet, vorgesehen sein, der sicherstellt, daß die Spaltlehre B eine in beiden Stellrichtungen wirksame Kupplung zwischen dem Auflageelement 14 und dem Grundkörper G herstellt. Sobald das freie Ende 25 mit dem Widerlager 38 in Kontakt tritt, wird eine Haltekraft aufgebaut. Diese Haltekraft ist kleiner als die Kraft der Rückstellfeder 25b, jedoch größer als der Verschiebewiderstand des Grundkörpers G an der Halterung 6.In the free end 25a of the plunger 25 and / or in the area of the abutment 38 of the support element 14, a pull magnet 66, e.g. a permanent magnet may be provided, which ensures that the gap gauge B produces a coupling between the support element 14 and the base body G which is effective in both adjustment directions. As soon as the free end 25 comes into contact with the abutment 38, a holding force is built up. This holding force is smaller than the force of the return spring 25b, but larger than the displacement resistance of the base body G on the holder 6.

Bei der Ausführungsform gemäß Fig. 6 ist ein Zwangsantrieb Z für den Grundkörper G vorgesehen, mit dem der Grundkörper G relativ zur Halterung 6 verstellbar ist. Die Radialführungen 17 sind drehbare Gewindespindeln 45, die in der Halterung 6 verankert sind. In der Halterung 6 ist ferner ein Antriebsmotor 43, z.B. ein Gleichstrommotor oder Schrittmotor, angeordnet, der über ein Untersetzungsgetriebe 44 die Gewindespindeln 45 treibt, die den Grundkörper G verschrauben. Der Grundkörper G besitzt unten einen seitlichen Fortsatz 46, in dem bei dieser Ausführungsform ein berührungsloser Abstandssensor 47, z.B. ein Hallelement, angeordnet ist, das entweder auf einen Gegensensor oder auf ein abtastbares Widerlager 48 im Auflageelement 14 ausgerichtet ist. Der Abstandssensor 46 steht über eine Steuerleitung 49 mit dem Motor 43 in Verbindung und ist auf einen Signalwert eingestellt, der der Spaltweite entspricht. Ändert sich bei einer Verstellung des Durchmessers der Speicherfläche 5 die Spaltweite W, dann wird der Grundkörper G mittels des Zwangsantriebs Z verfahren, bis die Spaltweite wieder stimmt. Als Abstandssensor 47 könnte auch ein Näherungsinitiator und gegebenenfalls sogar ein Analognäherungsinitiator vorgesehen sein.In the embodiment according to FIG. 6, a positive drive Z is provided for the base body G, with which the base body G is relative to the holder 6 is adjustable. The radial guides 17 are rotatable threaded spindles 45 which are anchored in the holder 6. In the holder 6 there is also a drive motor 43, for example a direct current motor or stepper motor, which drives the threaded spindles 45, which screw the base body G, via a reduction gear 44. The base body G has a lateral extension 46 at the bottom, in which, in this embodiment, a non-contact distance sensor 47, for example a Hall element, is arranged, which is aligned either with a counter sensor or with a scannable abutment 48 in the support element 14. The distance sensor 46 is connected to the motor 43 via a control line 49 and is set to a signal value which corresponds to the gap width. If the gap width W changes when the diameter of the storage surface 5 is adjusted, then the base body G is moved by means of the positive drive Z until the gap width is correct again. A proximity initiator and possibly even an analog proximity initiator could also be provided as the distance sensor 47.

Bei der Ausführungsform gemäß Fig. 7 sind mehrere in Umfangsrichtung verteilte Stopvorrichtungen S vorgesehen, die entweder wahlweise zur Abzugslängeneinstellung benutzt werden, oder die bei bei einem Schaden einen Wechsel auf eine andere Stopvorrichtung ermöglichen. Die in ausgezogenen Linien gezeigte Stopvorrichtung S enthält in der Spaltweiten-Haltevorrichtung H eine berührungslose Spaltlehre B. Dazu ist im Fortsatz 46 ein Magnet 49 angeordnet, der auf ein Gegenlager oder einen Gegenmagneten 50 im Auflageelement 14 ausgerichtet ist. Im Grundkörper G ist eine Kammer 52 vorgesehen, in die ein Rohr 51 ragt, das über eine Leitung 53 und ein Schaltventil 54 wahlweise mit einer Druckquelle 55 oder einem Tank 56 verbindbar ist, wobei eine Steuereinrichtung 58, 59 das Schaltventil 54 steuert. Diese Komponenten bilden einen Kraftgeber N, der den Grundkörper G mit einer Balancekraft P beaufschlagt, während zwischen den Magneten 49, 50 eine Magnetkraft K erzeugt wird. Die Balancekraft P und die Magnetkraft K sind einander entgegengesetzt und so abgestimmt, daß sich bei der Spaltweite ein Gleichgewicht ergibt. Der Grundkörper G ist an den Radialführungen 17 schwimmend gelagert. Die Balancekraft P kann in ihrem Wert geändert werden, um die Spaltweite zu verstellen. Ferner schiebt die Balancekraft P den Grundkörper G dem wegfahrenden Auflageelement 14 nach, um die Spaltweite W zu halten. Im Betrieb wird der Grundkörper G in seiner schwimmenden Führung durch das Gleichgewicht zwischen der Magnetkraft K und der Balancekraft P positioniert. Bei einer Vergrößerung des Durchmessers schiebt die Magnetkraft K den Grundkörper gegen die Balancekraft P nach außen. Fig. 8a und 8b sind eine Front- und Seitenansicht zur Fig. 7.In the embodiment according to FIG. 7, a plurality of stop devices S distributed in the circumferential direction are provided, which are either used optionally for setting the draw-off length or which, in the event of damage, enable a change to another stop device. The stop device S shown in solid lines contains a non-contact gap gauge B in the gap width holding device H. For this purpose, a magnet 49 is arranged in the extension 46, which is aligned with a counter bearing or a counter magnet 50 in the support element 14. A chamber 52 is provided in the base body G, into which protrudes a pipe 51, which can be optionally connected to a pressure source 55 or a tank 56 via a line 53 and a switching valve 54, a control device 58, 59 controlling the switching valve 54. These components form a force generator N, which applies a balance force P to the base body G, while a magnetic force K is generated between the magnets 49, 50. The balance force P and the magnetic force K are opposed to each other and adjusted so that there is an equilibrium in the gap width. The base body G is floating on the radial guides 17. The value of the balance force P can be changed in order to adjust the gap width. Furthermore, the balance force P pushes the base body G towards the moving support element 14 in order to maintain the gap width W. In operation, the base body G is positioned in its floating guidance by the balance between the magnetic force K and the balance force P. When the diameter increases, the magnetic force K pushes the base body outwards against the balance force P. 8a and 8b are a front and side view of FIG. 7.

Fig. 10 verdeutlicht als Schaubild die Einstellung der Spaltweite W mittels des Gleichgewichts zwischen den Kräften P, K. Auf der vertikalen Achse sind Krafteinheiten aufgetragen, während die horizontale Achse die Spaltweite repräsentiert. In Abhängigkeit von der Spaltweite variiert die Magnetkraft, z.B. eine Abstoßkraft zwischen den Magneten, entlang einer gekrümmten Kurve. Am Schnittpunkt mit der horizontalen, die Balancekraft repräsentierenden Kurve ergibt sich die Spaltweite, im gezeigten Beispiel 0,8mm. Aus dem Schaubild ist leicht erkennbar, daß bei einer Veränderung der konstanten Balancekraft P jede Spaltweite eingestellt werden kann.10 illustrates as a graph the setting of the gap width W by means of the equilibrium between the forces P, K. Force units are plotted on the vertical axis, while the horizontal axis represents the gap width. Depending on the gap width, the magnetic force, for example a repulsive force between the magnets, varies along a curved curve. At the intersection with the horizontal curve representing the balance force, the gap width results, in the example shown 0.8 mm. From the diagram it is easy to see that one Changing the constant balance force P each gap width can be adjusted.

Fig. 9 verdeutlicht ein anderes Prinzip zum Erzeugen der Balancekraft P am Grundkörper G. Ein Kraftspeicher N, z.B. eine Wickelfeder 60, beaufschlagt einen Arm 61 im Uhrzeigersinn, der auf einem Querstift 62 im Grundkörper G aufliegt. Der Kraftspeicher N ist an der Halterung 6 gelagert. Die Balancekraft P wirkt der Magnetkraft K (Abstoßungskraft) entgegen.Fig. 9 illustrates another principle for generating the balance force P on the base body G. An energy store N, e.g. a clock spring 60 acts on an arm 61 in a clockwise direction, which rests on a cross pin 62 in the base body G. The energy accumulator N is mounted on the holder 6. The balance force P counteracts the magnetic force K (repulsive force).

Bei der Ausführungsform von Fig. 11 ist eine weitere Variation des Kraftspeichers N zum Erzeugen der Balancekraft P erkennbar, bei der die in Fig. 9 gezeigte Wickelfeder 16 in der Halterung 6 gelagert ist und ein Ritzel 63 im Uhrzeigersinn beaufschlagt, das mit einer Zahnstange 64 an einer Stange 65 des Grundkörper G kämmt. Ferner ist erkennbar, daß im Fortsatz 46 und im Auflageelement 14 mehrere Magneten 49 und 50 angeordnet sein können.In the embodiment of FIG. 11, a further variation of the energy accumulator N for generating the balance force P can be seen, in which the clock spring 16 shown in FIG. 9 is mounted in the holder 6 and acts on a pinion 63 in the clockwise direction, which has a rack 64 combs on a rod 65 of the base body G. It can also be seen that a plurality of magnets 49 and 50 can be arranged in the extension 46 and in the support element 14.

Claims (26)

  1. Thread storage and delivery device, particularly for weft threads, with a storage body (4) arranged on a housing (1), which storage body forms a storage surface (5) of adjustable diameter for a supply of thread comprising turns, from which the thread can be drawn in a rotary manner, and with at least one stop device (S) arranged on a mounting (6) of the housing with a radially adjustable basic body (G) which with the storage surface (5) delimits a thread feedthrough gap (8), characterized in that the thread storage and delivery device (F) has a gap width maintaining device (H), formed from components built into the thread storage and delivery device (F), with a gap gauge (B), with which the width of the feedthrough gap (8) can be maintained irrespective of changes in the diameter of the storage surface (5).
  2. Thread storage and delivery device according to Claim 1, characterized in that the components forming the gap width maintaining device (H) are built into the basic body (G) and/or the mounting (6) and/or the storage body (4).
  3. Thread storage and delivery device according to Claims 1 and 2, characterized in that a component of the gap width maintaining device (H) has a mechanism (M) for the adjustment of the gap gauge (B) movable in the basic body (G) between a passive position and an extended contact position (I), which gap gauge bridges the feedthrough gap (8) in the contact position (I) by the gap width (W) in a delimiting manner.
  4. Thread storage and delivery device according to Claims 1 and 2, characterized in that the gap width maintaining device (H) has a gap gauge (B) bridging the feedthrough gap (8) in a contactless manner.
  5. Thread storage and delivery device according to Claims 3 and 4, characterized in that the effective length of the gap gauge (B) is adjustable.
  6. Thread storage and delivery device according to Claims 1 to 5, characterized in that in at least one setting direction of the basic body (G) the gap gauge (B) forms a force-transmitting coupling maintaining the gap width (W) between the basic body (G) and the storage surface (5).
  7. Thread storage and delivery device according to Claims 1 to 6, characterized in that the basic body (G) is guided in the radial direction in a floating manner on the mounting (6) and can be retained by means of the gap gauge (B) in a radial relative position to the storage surface (5) which is dependent on the particular diameter of the storage surface (5) and is defined by the gap width (W).
  8. Thread storage and delivery device according to Claims 3 and 5 to 7, characterized in that the gap gauge (B) is at least one pressure element (D) which can be moved in the basic body (G) approximately radially to the storage body (4) and which can be brought into contact against an abutment (38) of the storage surface (5) in the contact position (I).
  9. Thread storage and delivery device according to Claim 8, characterized in that a clamping device (Q) which can preferably be actuated manually and can be adjusted between a release position and a retaining position is provided between the basic body (G) and the mounting (6).
  10. Thread storage and delivery device according to Claims 3, 8 and 9, characterized in that the clamping device (Q) is structurally incorporated into the mechanism (M) for moving the pressure element (D).
  11. Thread storage and delivery device according to Claim 10, characterized in that the clamping device (Q) has at least one lock (36, 42) which is fixed to the basic body and preferably spring-supported and which acts on the mounting (6) in the retaining position, that the lock (36, 42) has a rotatable actuating shaft (28) on which a setting cam (29) for the pressure element (D) is arranged in a rotation-proof manner and that the pressure element (D) can be retained in the contact position (I) by means of the setting cam (29) in the release position of the clamping device (Q).
  12. Thread storage and delivery device according to Claim 11, characterized in that a return spring (25b) which acts on the pressure element (D) in the direction of the passive position is arranged in the basic body (G).
  13. Thread storage and delivery device according to Claim 11, characterized in that the setting cam (29) has a continuous contact position cam path (30) which at least partially overlaps the retaining position within the range of rotation of the actuating shaft (28) between the release position and the retaining position of the clamping device (Q).
  14. Thread storage and delivery device according to Claims 8 to 13, characterized in that the pressure element (D) is a pressure ram (25) with a head part (27) for the setting cam (29).
  15. Thread storage and delivery device according to Claims 5 and 14, characterized in that a longitudinal adjustment is provided within the longitudinal extension of the pressure ram (25), preferably in the form of a screw connection (40) between the head part (27) and a shaft of the pressure ram (25).
  16. Thread storage and delivery device according to Claims 8 to 15, characterized in that a pull magnet (66) is arranged at the free end (25a) of the pressure ram (25) and/or in the abutment (38) of the storage surface (5), and the magnetic force thereof is less than the force of the return spring (25b) but greater than the resistance to movement of the basic body (G) at the mounting (6) with the clamping device (Q) in the release position.
  17. Thread storage and delivery device according to Claims 1, 2 and 4 to 7, characterized in that the gap gauge (B) has at least one magnet (49, 50) arranged on the storage surface (5) and/or on the basic body (G) guided on the mounting (6) in a floating manner, preferably a permanent magnet or an excitable electromagnet, which generates a radial tensile or compressive force (K) between the basic body (G) and the storage surface (5) and that a preferably resilient balance force (P) acts on the basic body (G) against the tensile or compressive force (K).
  18. Thread storage and delivery device according to Claim 17, characterized in that the magnet (49, 50) is adjustably mounted in the radial direction in the basic body (G) and/or in the storage surface (5).
  19. Thread storage and delivery device according to Claim 17, characterized in that the balance force (P) is adjustable in terms of its value.
  20. Thread storage and delivery device according to Claim 17, characterized in that the basic body (G) has the balance force (P) applied to it by a spring element (60) directly or via a gear (61, 62; 63, 64, 65).
  21. Thread storage and delivery device according to Claim 17, characterized in that the basic body (G) has the balance force (P) applied to it by means of a controllable pneumatic, hydraulic or magnetic force transmitter (N, 51, 52).
  22. Thread storage and delivery device according to Claims 1, 2, 4, 5 and 7, characterized in that a mechanical positive drive (Z), preferably a direct current motor (43) with reducing gear (44) and radial screw spindles (45), for the basic body (G) is provided at the mounting (6) and that on the basic body (G) and/or the storage surface (5) a contactless distance sensor (47, 48) adjustable to the gap width (W), preferably a Hall element or a proximity sensor, is arranged, which generates direction-dependent control signals if the gap width changes and is in control connection with the positive drive (Z).
  23. Thread storage and delivery device according to Claim 22, characterized in that contact elements (14) defining the storage surface (5) can be radially adjusted jointly in the storage body (4) by means of a mechanical actuating drive (9), that the actuating drive (9) has a drive motor (22) connected to an operating control device (2) of the thread storage and delivery device (F) and that, preferably, the operating control device (2) is in control connection with the direct current motor (43) of the positive drive (Z) in order also to adjust the basic body (G) substantially synchronously if the diameter of the storage surface (5) is adjusted.
  24. Thread storage and delivery device according to Claim 23, characterized in that the operating control device (2) has a microprocessor with a memory in which the relevant diameter settings of the storage surface (5) are allocated to a multiplicity of different peripheral lengths of the storage surface (5) so that they can be called up, that the operating control device (2) has an input part (2a) for at least the peripheral length and that by means of the operating control device (2) the diameter of the storage surface (5) can be matched to the peripheral length entered in each case, with the simultaneous adjustment of the basic body (G) of the stop device (S) if required.
  25. Thread storage and delivery device according to Claim 24, characterized in that at least one thread sensor (A) provided in the user (C) of the drawn-off thread is connected to the operating control device (2), with which sensor relevant signals in respect of deviations of the actual take-off length of the thread (Y) from the desired take-off length (L) determined in the user (C) are generated, and that with the operating control device (2) the diameter of the control surface (5) and the radial position of the stop device can be adjusted for the purpose of matching the actual take-off length to the desired take-off length (L) according to the signals in the course of the operation of the thread storage and delivery device (F).
  26. Thread storage and delivery device according to at least one of Claims 1 to 25, characterized in that several optionally activatable stop devices (S) are arranged in an annular body, the internal diameter of which is larger than the largest possible storage surface diameter and that the annular body is fitted to the mounting (6) of the housing (1) in an eccentrically adjustable manner with respect to the axis of the storage surface (5) by means of the gap width maintaining device (H).
EP91912450A 1990-07-11 1991-07-11 Thread storage and feed device Expired - Lifetime EP0538307B1 (en)

Applications Claiming Priority (13)

Application Number Priority Date Filing Date Title
SE9002409 1990-07-11
SE9002409A SE9002409D0 (en) 1990-07-11 1990-07-11 SUPPLIES FOR TEXTILE MACHINES AND PROCEDURES BEFORE CHANGE OF TIRES ON THE SUPPLIER'S YARN STORES
SE9003780 1990-11-26
SE9003780A SE9003780D0 (en) 1990-11-26 1990-11-26 METHOD AND DEVICE FOR MEASURING SUPPLIES FOR TEXTILE MACHINES, SPECIAL AIR OR WATER JET TYPE
SE9003796 1990-11-27
SE9003796A SE9003796D0 (en) 1990-11-27 1990-11-27 ADJUSTMENT DEVICE
SE9101226 1991-04-21
SE9101226A SE9101226D0 (en) 1991-04-21 1991-04-21 YARNERS WITH A YARNING PARADE, WIRELESS WIRE AND A SIZE FURNITURE FOR AN AIR OR WATER-JET WEAVER
SE9101234 1991-04-23
SE9101234A SE9101234D0 (en) 1991-04-23 1991-04-23 YARNERS WITH A YARN PREPARATION, WIRELESSLY A SIZE SUPPLIER FOR AN AIR OR WATER-JET WEAVER
SE9101978A SE9101978D0 (en) 1990-07-11 1991-06-24 WIRE STORAGE AND FEEDING DEVICE
SE9101978 1991-06-24
PCT/EP1991/001299 WO1992001099A1 (en) 1990-07-11 1991-07-11 Thread storage and feed device

Publications (2)

Publication Number Publication Date
EP0538307A1 EP0538307A1 (en) 1993-04-28
EP0538307B1 true EP0538307B1 (en) 1994-12-07

Family

ID=27555317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91912450A Expired - Lifetime EP0538307B1 (en) 1990-07-11 1991-07-11 Thread storage and feed device

Country Status (4)

Country Link
EP (1) EP0538307B1 (en)
JP (2) JPH05508444A (en)
DE (1) DE59103828D1 (en)
WO (2) WO1992001099A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1020412C2 (en) * 2002-04-17 2003-10-20 Te Strake Textile B V Method for adjusting the diameter of the winding body of a pre-winding device as well as such a pre-winding device.
SE0400860D0 (en) * 2004-04-01 2004-04-01 Iropa Ag Stopper magnet
EP3140446B1 (en) * 2014-05-09 2019-08-28 Picanol Weft feeder device
BE1021876B1 (en) * 2014-05-09 2016-01-25 Picanol WIRE SUPPLY DEVICE WITH LEGS
BE1021881B1 (en) * 2014-05-09 2016-01-25 Picanol WIRE FEEDING DEVICE WITH WRAP TERMINAL
BE1021878B1 (en) * 2014-05-09 2016-01-25 Picanol WIRE FEEDING DEVICE WITH TRANSMISSION SYSTEM
BE1023583B1 (en) 2015-11-06 2017-05-09 Picanol N.V. Process for introducing a weft thread

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3684286D1 (en) * 1985-12-13 1992-04-16 Tsudakoma Ind Co Ltd Weft feeder for weaving machines.
JPS6328944A (en) * 1986-07-14 1988-02-06 津田駒工業株式会社 Method and apparatus for setting length measuring quantity of wefting apparatus
EP0290380B1 (en) * 1987-04-24 1991-08-28 GebràœDer Sulzer Aktiengesellschaft Weft thread storing apparatus with an automatic thread-measuring device for weaving looms
DE8800216U1 (en) * 1987-11-29 1989-03-30 Aktiebolaget Iro, Ulricehamn Device for storing, delivering and measuring a thread
JPH01321951A (en) * 1988-06-03 1989-12-27 Gebr Sulzer Ag Weft yarn accumulation apparatus

Also Published As

Publication number Publication date
DE59103828D1 (en) 1995-01-19
EP0538307A1 (en) 1993-04-28
JPH05508447A (en) 1993-11-25
WO1992001099A1 (en) 1992-01-23
WO1992001102A1 (en) 1992-01-23
JPH05508444A (en) 1993-11-25

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