EP3770311A1 - Métier à tisser circulaire à trajectoire périphérique - Google Patents

Métier à tisser circulaire à trajectoire périphérique Download PDF

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Publication number
EP3770311A1
EP3770311A1 EP20187489.8A EP20187489A EP3770311A1 EP 3770311 A1 EP3770311 A1 EP 3770311A1 EP 20187489 A EP20187489 A EP 20187489A EP 3770311 A1 EP3770311 A1 EP 3770311A1
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EP
European Patent Office
Prior art keywords
thread
warp
orbit
guide
path
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20187489.8A
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German (de)
English (en)
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EP3770311B1 (fr
Inventor
Werner Hufenbach
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.)
Innotec Lightweight Engineering and Polymer Technology GmbH
Original Assignee
Innotec Lightweight Engineering and Polymer Technology GmbH
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.)
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Publication date
Priority claimed from DE102019120035.0A external-priority patent/DE102019120035B3/de
Priority claimed from DE102019120037.7A external-priority patent/DE102019120037B3/de
Application filed by Innotec Lightweight Engineering and Polymer Technology GmbH filed Critical Innotec Lightweight Engineering and Polymer Technology GmbH
Publication of EP3770311A1 publication Critical patent/EP3770311A1/fr
Application granted granted Critical
Publication of EP3770311B1 publication Critical patent/EP3770311B1/fr
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D37/00—Circular looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D27/00—Woven pile fabrics
    • D03D27/02—Woven pile fabrics wherein the pile is formed by warp or weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/52—Shuttle boxes
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/02—General arrangements of driving mechanism

Definitions

  • the invention relates to a circular loom for weaving a weaving core with at least one shuttle which has a weft thread bobbin and can be moved along a circular orbit around the weaving core.
  • the known circular looms and weaving processes on circular looms are used for the production of hollow profile-like, hose-like textile fabrics for, for example, fire hoses, water hoses, sacks or wheel rims, etc.
  • a circular loom of the type mentioned is from the document WO2017 / 190739 A1 known.
  • One or more shooters each with a weft thread bobbin, which guides the weft thread in a circular path around the weaving core, are moved along a circular orbit.
  • Warp bobbin devices essentially have, in addition to a warp thread bobbin with warp thread, a holder for the warp thread bobbin (warp bobbin holder) and a thread tensioning device.
  • the warp bobbin devices are arranged in the immediate vicinity of a weaving plane which is radially enclosed by the circular orbit and is determined by the circumferential course of the weft thread around the weaving core.
  • the warp bobbin devices are designed to be movable, the travel path of the warp bobbin devices taking place through the weaving plane in order to form what is known as piling of the warp threads through their changing positioning and to produce a weaving with the weft thread.
  • a separate thread guide or thread deflection of the warp threads is largely dispensed with.
  • the transfer of the warp bobbin devices requires increased mechanical and control engineering effort.
  • the rapid transfer of the warp bobbin devices and the rapid exit of the warp bobbin devices and their positioning devices from the weaving plane for the passage of weft thread bobbins mean a high structural effort, with the transfer - and Extension times limit the maximum possible speed of the weft thread bobbin.
  • the warp bobbin devices are pivotably mounted on a peripheral housing, the warp threads being fed alternately to the weaving core or the weaving plane by means of thread guide tubes that are connected to the swiveling warp bobbin devices, in that the thread guide tubes change the direction of the track for the rotation of the shuttle cross.
  • the track is provided with wide slots for the thread guide tubes to pass through, the thread guide tubes adopting their alternating positions along the slots.
  • This circular loom also requires a complex mechanical and control engineering design of the movement of the warp bobbin devices, the speed of the shooters being limited by the passage times of the thread guide tubes.
  • the invention is based on the object of providing an improved circular loom which eliminates the disadvantages of the prior art and which, in particular with simpler constructive means, enables higher weaving productivity.
  • Another object is to ensure improved functionality of the circular loom for the production of a hollow profile-like fabric of high weaving quality and variability.
  • the object is achieved according to the invention by a circular loom with the features of claim 1, according to which the circulating path is formed by first path segments arranged in a row along its circumference and at least one movably arranged or designed guide device is provided, which is at least one of a warp thread spool of a warp spool device
  • the warp thread provided and on which at least one first track segment of the orbit and at least one second track segment, which can be alternatively assigned to the orbit, are arranged and guided, wherein in the guided absence of the first and second track segment from the orbit, the guided warp thread, crossing the track plane, passes the orbit.
  • One or more shuttle (s) move with their weft thread bobbins along the, for example mechanically or electromagnetically formed circular orbit, which determines the conveying or guide line for the concentric conveying or guiding of the shuttle around the weaving core.
  • the contactor (s) can be active, e.g. B. preferably by means of its own direct drive, move along the orbit, or the contactor (s) can passively, z. B. by means of an externally driven, mechanical carrier or by means of an electromagnetic drive, can be conveyed and controlled along the orbit.
  • the circular orbit is preferably aligned radially (perpendicular to the weaving axis) with respect to the axially directed loom axis of the circular loom, so that the circular loom has a particularly narrow design.
  • the circular orbit quasi-radially (at an angle other than 90 ° to the weaving axis).
  • the radially outer circumference of the circular orbit forms the radial delimitation of the plane of the path of the circular loom within which the shuttle (s) with the weft thread rotate.
  • the axially outer width of the circular orbit forms the axial delimitation of the path plane of the circular loom within which the shuttle (s) with the weft thread rotate.
  • the outer boundary points of the circular orbit describe the orbit plane essentially as a circular disk.
  • the guide device according to the invention is preferably located outside the track plane and is movably arranged or designed to be movable in a fixed arrangement, whereby preferably only the track segments carried along with the guide device are conveyed out of or into the orbit (track plane) and the warp thread guided by the guide device during the Missing orbit segment in the orbit crosses the orbit plane of the orbit.
  • components or aids of the guide device for example aids for guiding the path segments and / or the warp thread, can also traverse the path plane of the orbit.
  • the movable guide device can, for example, be fastened or movably mounted on a radial outer wall of the machine housing of the circular loom or on the radially outer circumference of the circular orbit.
  • a plurality of guide devices are preferably arranged around the circumference of the circular orbit.
  • the guide device carries with it on the one hand at least a first and a second path segment in pairs in order to be able to exchange the first path segment of the orbit for the second, alternatively, path segment and vice versa in an alternating movement and thus to be able to complete the orbit in every change position.
  • the guide device takes over the guiding and alternating positioning of at least one warp thread (warp thread guide) between its provision by the warp thread bobbin (s) of the warp bobbin device (s) and its interweaving with the weft thread at a weaving point on the weaving core.
  • warp thread guide at least one warp thread
  • the weaving point denotes the mobile point at which the warp threads are temporarily interwoven with the weft threads on the surface of the weaving core.
  • the circular orbit according to the invention is formed by stringing together a multiplicity of individual, circular arc-shaped path segments and is therefore constructed in several parts / segmented.
  • a path segment of the circulating path and a second path segment associated with this first path segment are arranged on the movable guide device and guided through the latter, so that they, like the guided warp thread, are alternately positioned by the guide device.
  • first path segments The path segments of the orbit are referred to as first path segments; the first orbit segments in preferably the same number of associated, alternate path segments are referred to as second path segments.
  • the second path segment arranged on the guide device is designed in cooperation with the alternately movable guide device as a temporarily acting replacement path segment of the first path segment of the circular orbit.
  • the second path segment briefly replaces the first path segment in the circular orbit during the alternating movement of the guide device, with the path segments in question being positioned outside the path plane in the phase of the exchange of the path segments and, in this absence of the path segments from the orbit, a temporary orbit interrupting the orbit Defect arises in the orbit which the warp thread carried along by the guide device can use to cross the temporarily interrupted orbit or the plane of the path.
  • the warp thread has changed the side of the orbit and the orbit is alternately closed by the second track segment, while the contactor (s) can subsequently travel unhindered through the closed orbit.
  • the temporary flaw in the orbit is a local interruption, generated along the circumference of the orbit, of the otherwise homogeneously lined up track segments of the orbit by a temporarily missing track segment.
  • the defect can be an objectively completely empty space (empty space) along the orbit; however, components or aids of the orbit, such as guide elements for guiding the track segments, or components or aids of the guide device, for example for guiding the track segments and / or the warp thread, can be temporarily present at the defect.
  • a first and a second web segment are preferably guided in pairs and together with a warp thread arranged between the pair of web segments by means of the guide device and designed as a guided unit.
  • Each guide device can be moved relative to an adjacently arranged guide device, whereby the first track segments can also be moved relative to one another and the second track segments can also be moved relative to one another.
  • the guide device acts separately from the design and function of the warp bobbin device (s).
  • the required thread tension of the warp threads is essentially maintained by the thread tensioning device of the warp bobbin devices, whereby the positioning of the warp bobbin devices can be stationary and locally variable.
  • the warp bobbin devices can be arranged in a stationary manner, e.g. fixedly on a housing part of the circular loom, or they can also be arranged in different positions in relation to the housing of the circular loom.
  • the warp bobbin devices are preferably located in the immediate vicinity of the plane of the web in order to be able to feed the warp threads to the weaving point on the weaving core over the shortest possible paths.
  • warp bobbin devices are provided which is assigned to a guide device, these warp bobbin devices can be arranged next to one another, one behind the other or one above the other in relation to the direction of the thread guidance of the warp threads towards the guide device.
  • each warp thread is guided separately by a respective guide device.
  • the warp threads drawn off the warp bobbins can - without having to move the warp bobbin devices - be brought to both sides of the orbit and thus the path plane in short distances, quickly and with little effort, with a warp thread carried along by the guide device subsequently crosses the path plane in which the warp thread leaving the guide device, for example via a thread outlet, passes the circular orbit at a gap between the path segments of the orbit that is temporarily generated during the removal of a path segment of the orbit from the orbit plane.
  • the warp threads can be spread and fanned alternately in opposite directions on both sides of the web plane, in order to form a warp thread piling while maintaining a high thread tension, whereby in the change positions of the warp threads outside the web plane, the passage of the shooter (s) is ensured along the temporarily closed orbit, after which an undulation / interweaving of the warp threads with the weft thread running through the warp thread, which is drawn from the weft thread bobbin of the shuttle carried along the orbit, takes place on the weaving core.
  • the most varied Weaving patterns are formed on the weaving core to be woven.
  • the weaving process can be significantly accelerated and higher productivity can be achieved.
  • the arrangement of the first and second track segment can be designed as closely as possible to one another and, in particular, the outlet of the warp thread formed between the first track segment and the second track segment can be so close to the orbit, or the lateral, axial delimitation of the track plane, that in the Change positions of the warp threads the passage of the shuttle is just guaranteed to be free of contact with the warp thread, after which the exchange of the track segments, the change of the warp thread positions and the rotation of the shuttle can take place even faster, which accelerates the weaving process and further increases the productivity of the circular loom.
  • the possibility of positioning the warp threads close to the orbit also causes the warp threads to run at a very shallow angle (weaving angle) in relation to the extent of the plane of the web, so that the thread tension of the warp threads remains largely constant due to the narrow change of position to the advantage of high weaving quality .
  • the contact-free and deflection-free guidance and passage of the warp threads through the orbit ensures gentle treatment of the warp thread material, so that sensitive thread materials such as carbon fibers can also be processed well.
  • the first track segments of the circular orbit and also the alternatively assignable second track segments can, seen in the direction of the circumference of the orbit, be arranged in a row almost flush and almost gap-free and can be designed to be movable in their relative movement to one another, e.g. to slide against one another.
  • the almost gap-free design of the orbit enables the contactor (s) to run very smoothly and quickly, so that the contactor (s) can circulate in the orbit at high speed almost vibration-free and thus while maintaining a high thread tension and the above-mentioned productivity and quality improvement can be further improved.
  • the circular loom according to the invention is particularly suitable for weaving looms with a cross-sectional geometry that changes in the axial extent (in the direction of the axis of rotation of the loom (loom axis)), since the tightly interwoven threads conform to a true contour can create changing web core contour.
  • the weaving core is moved along the weaving axis of the circular loom in order to be able to weave the entire contour of the weaving core.
  • the weaving point at which the warp threads are interwoven with the weft threads on the surface of the weaving core moves not only around the circumference of the rotating core but also along its core axis.
  • the axis of rotation of the weaving core (weaving core axis) is preferably congruent with the weaving axis of the circular loom, so that the weaving core is moved in the direction of its axis of rotation (weaving core axis) along the congruent weaving axis of the circular loom.
  • the axis of rotation of the weaving core (weaving core axis) can, however, also be arranged at an angle to the weaving axis of the circular loom when the weaving core is moved and moving along the weaving axis of the circular loom in order to generate a variable angular position of the warp threads and the weft threads on the weaving core and thus a variable fabric tension can.
  • the circular loom according to the invention is also suitable for the production of hollow profile-like, fiber-containing fabric preforms of fiber composite products, such as, for example, for the production of woven preforms for wheel rims from fiber composite material.
  • a first path segment of the circulating path and a second path segment that can be alternatively assigned to the circulating path are designed to be identical to one another.
  • the identical design of the second orbit segment replacing the first orbit segment of the orbit homogenizes the design of the alternately closed orbit and improves the running properties and smoothness of the contactor running along the circular orbit.
  • the guide device has at least one displaceably or pivotably arranged or designed positioning part.
  • At least a first and a second track segment can be arranged on the positioning part.
  • the positioning part can be moved or pivoted alternately by means of a corresponding structural design of the guide device relative to a base body of the guide device or relative to the machine housing of the circular loom or relative to the circular orbit and thereby carry the first and second track segments with it.
  • the guide device and / or the positioning part can furthermore preferably be equipped with at least one thread guide element.
  • the thread guide element of the guide device is provided for the actual steering and guidance of at least one warp thread during its alternating movement and carries with it a warp thread running off the warp thread spool or several warp threads running off warp thread spools, possibly also with a thread deflection.
  • the thread guide element can be connected to the positioning part or can be designed to be integrated in the positioning part.
  • One or more thread guide element (s) can be arranged or formed on the positioning part of the guide device.
  • the warp thread can also be guided and positioned by means of a positioning part of the guide device, which directly carries a warp thread bobbin, whereby a thread guide element or a thread outlet can possibly be dispensed with.
  • the guide device can also have a plurality of positioning parts, possibly with one or more thread guide elements for guiding and guiding one or more warp threads in each case.
  • the thread guide element can preferably be designed as a thread guide channel, as a thread guide groove or as a thread guide eyelet, through which the warp thread is passed.
  • the thread guide element can guide the warp thread axially or radially, for example, and end with a thread outlet of the warp thread.
  • An outlet opening at the exit of the guided warp thread from the thread guide element of the positioning part is referred to as the thread outlet.
  • the thread guide element can preferably be arranged and designed on or in a positioning part of the guide device that is mounted so as to be movable or pivotable.
  • the positioning part of the guide device can be, for example, a movable guide carriage or a pivotable guide arm or a rotatable guide cylinder on which the track segment pair (s) are arranged and one or more thread guide element (s) are also arranged or formed.
  • the rotatable guide cylinder can, for example, have the pair (s) of track segments and also one or more thread guide element (s) in a turret arrangement.
  • the first and second path segments arranged at a defined distance from one another on the positioning part it can prove advantageous that these path segments are arranged parallel to one another and spaced apart, so that in addition to a resulting space saving in the circular loom, the assignment of the second web segment to the circulating path in replacement of the first web segment can take place with particularly little positioning effort.
  • the movement or pivoting of the positioning part and, furthermore, the entrained track segments and the guided warp thread are preferably carried out parallel to the weaving axis or with the axis of rotation perpendicular to the weaving axis of the circular loom.
  • This can shorten the path and travel time of the track segments to be exchanged and the path and travel time of the warp threads to cross the track plane, so that the exchange speed of the track segments and the change speed of the warp threads and consequently the speed of rotation of the shooters can be increased.
  • the positioning part of the guide device is designed to be linearly displaceable, so that the track segments carried along and the guided warp thread are subsequently moved / guided linearly.
  • a linear movability of the positioning part or the movement or displacement of a guided unit e.g. consisting of a positioning part, first and second track segment and warp thread guide, can be carried out relatively easily in terms of construction and control.
  • direct drives preferably linear drives
  • linear drives can be used, which can be located, for example, on the positioning part, on the base body or on the machine housing and, for example, pneumatically by pneumatic cylinders or can be operated electrically by electric motors, each positioning part can be driven individually.
  • the alternating movement of the positioning part can be generated and controlled by special switchable direct drives, e.g. by means of a toothed rack or threaded rod, which act in two directions.
  • the guide and / or the drive of the positioning part can also be magnetic and / or electromagnetic.
  • a linear movement of the warp thread causes lower thread tension losses than with non-linear movements of the warp threads, which further improves the quality of the woven product.
  • the linear movability of the positioning part and the entrained path segments or the guided warp thread is preferably designed in the axial direction along the weaving axis of the circular loom, which results in the path of the path segments or the path of the guided warp thread exactly perpendicular to the plane of the orbit.
  • the web segments can be exchanged in the shortest possible way and in the shortest possible travel time and the path and travel time of the warp threads to cross the web level can be shortened with the least possible deflections in a straight line, so that the exchange speed of the web segments and the changing speed of the warp threads and thus the speed of rotation of the shooters can be further increased.
  • the positioning part of the guide device can be mounted on a base body of the guide device by means of corresponding bearing elements or on a component of the machine housing or directly on the outer circumference of the circular orbit so that they can be moved or pivoted / rotated.
  • the base body of the guide device can in turn be arranged on a component of the machine housing or directly on the outer circumference of the circular orbit and be mounted there in a stationary or movable manner.
  • One or more positioning parts can be assigned to a base body.
  • a base body which is arranged in the radial direction between the positioning part and the circular orbit, it is preferably designed and arranged in relation to the warp thread carried along with the positioning part that a contactless passage of the guided warp thread through the base body in the direction of the circular Orbit is enabled.
  • the base body can have a slot-like passage opening in association with the thread guide or the path of the thread outlet, so that the warp thread can pass through the passage opening, preferably without contacting it.
  • the bearing element (s) for the mobile or rotatable mounting of a positioning part can be, for example, one or more elongated or arcuate guide groove (s) of the base body or the component of the machine housing or of the positioning part, which are arranged to extend in the direction of the intended straight or curved axis of movement for exchanging the track segments and correspond to corresponding guide bolts or guide web (s) of the positioning part or the base body or the component of the machine housing.
  • corresponding bearing elements designed in a dovetail shape can be provided.
  • the bearing element (s) can furthermore also be one or more guide rail (s) corresponding to rollers or bearing bushes.
  • the corresponding bearing elements are preferably designed in such a way that they slide or roll off one another or one another with as little frictional resistance as possible, so that the positioning part can be moved and accelerated as easily and quickly as possible.
  • the positioning part also has the lowest possible mass.
  • the material of the positioning part is preferably made of plastic or light metal.
  • bearing elements such as elongated guide grooves, guide webs or guide rails, can be arranged parallel to one another, which makes the mounting and guidance of the guide carriage and thus the guidance of the track segments and warp threads even more precise and secure.
  • the design of the bearing elements for mounting a guide carriage can be made in accordance with known linear guides, such as the linear guides from Festo.
  • the bearing of the guided path segments of the orbit for exercising their linear relative movement to one another can be done, for example, by flat sliding surfaces facing one another.
  • the accuracy of the storage and guidance of the track segments can be increased by a tongue and groove connection on the sliding surfaces facing one another.
  • the linear relative movement of the guided path segments among one another can be carried out relatively easily with the help of the guide device in terms of construction and control technology.
  • the warp thread bobbin of at least one warp bobbin device is arranged essentially in a straight and thus deflection-free extension of the path of the warp thread through the thread guide element and / or essentially in a straight and thus deflection-free extension of the travel or pivoting path of the thread guide element, the execution lead to an advantageous reduction in the total required thread deflections in the course of the warp thread between the warp bobbin device and its passage through the thread outlet of the guide device.
  • the thread tension of the warp threads in question can be kept even more stable with lower thread tension losses and, on the other hand, the thread guidance can be implemented in a particularly gentle manner.
  • An advantageous embodiment of the invention provides that the warp thread bobbin of at least one warp bobbin device is arranged essentially as an extension of the radial extent of the circular orbit.
  • the warp thread bobbin (s) of the warp bobbin device (s) is / are thus not only arranged outside the circumference of the circular orbit, but essentially in a radial extension of the orbit, or the plane of the path.
  • the warp thread bobbins of several warp bobbin devices can be arranged in a radial, star-shaped arrangement around the outer circumference of the circular orbit.
  • the warp bobbin device (s) can for example be attached to a radial outer wall of the machine housing of the circular loom.
  • the warp threads can run with very few deflections from the warp thread bobbin via the guide device (s) to the weaving point.
  • the thread deflections of the warp threads to be made by the alternating movement of the guide device (s) are largely reduced and at the same time the thread length of the warp thread is subject to smaller fluctuations, which has a further advantageous effect on a constant thread tension.
  • a particularly advantageous embodiment of the invention provides that at least one warp bobbin device is arranged on the guide device and / or on a first and / or second track segment.
  • the warp bobbin device (s) is / are carried along directly by the guide device, preferably by the movable positioning part, and / or indirectly by a first and / or second track segment arranged on the guide device.
  • the warp bobbin device can preferably be carried by the movable guide device - using the piggyback principle - and / or held by the guide device or the track segment (s) in a section between the first and second track segments.
  • the warp bobbin device (s) can preferably be arranged and carried along on the movable positioning part (s) of the guide device (s).
  • One or more warp bobbin devices can be arranged on a guide device, in particular on a positioning part of the guide device, or on a track segment.
  • the formation of a separate thread guide element or a thread outlet for the outlet of the warp thread from the guide device can be superfluous and, furthermore, in a technologically advantageous manner, the warp thread directly and be guided from the warp thread bobbin to the weaving point without further deflections.
  • the circular loom can be made more compact and, for the benefit of further improved thread tension and thread protection, the course of the warp thread can be further shortened and the number of necessary deflections in the thread guide of the warp thread can be minimized, especially because of the direct assignment of the warp bobbins.
  • Device for guiding device the thread tension can be kept explicitly stable for the individual warp thread.
  • two or more warp threads of the warp bobbin devices can be guided jointly or individually between a pair of track segments made up of the first and second track segments, the warp threads together or individually, preferably each passing a thread guide element of the guide device or directly from the individual ones entrained warp thread bobbins are removed.
  • the circular orbit has at least one guide rail or is formed by at least one guide rail in or on which at least one contactor is guided.
  • the guide rail is designed to be subdivided into ring segment-shaped rail segments, which are largely arranged flush with one another and form the ring-shaped closed guide rail.
  • the contactor or contactors can rotate by means of rolling or sliding means in or on the at least one annular guide rail, which defines the circular orbit, with the contactor or contactors moving over the almost gap-free separating points between the individual rail segments of the annular guide rail , slide.
  • the virtually gap-free separating points of the ring-shaped guide rail have hardly any influence on the passage and thus on the smoothness of the contactors.
  • the contactor or contactors can also revolve around a plurality of guide rails arranged at a distance from one another by means of the rolling or sliding means.
  • the change positions of the warp threads can preferably be designed so close to the axial delimitation of the ring-shaped guide rail that the contactor can just pass through without contact.
  • the guide rail is preferably designed as an internal runner rail in which the contactor (s) rotate within the circular orbit that radially delimits the plane of the path.
  • Such an embodiment is also conceivable in which the contactor (s) are integrated within a plurality of guide rails arranged at a distance from one another.
  • the guide rail (s) provide a track that enables the shuttle to rotate with little vibration while the thread tension of the weft threads is consistently high, so that a largely homogeneous weaving operation can be achieved with high circulation speed at the same time.
  • the contactor can be guided in or on the guide rail, for example by means of rollers, preferably by means of rubberized rollers, and roll over the separation points, which further improves the smoothness of the contactor with regard to vibrations and rolling noise.
  • the guiding and / or the drive of the contactor on or in the circular orbit is magnetic and / or electromagnetic, e.g. similar to a known Transrapid driving system.
  • a moving electro-magnetic field can be generated on the circular orbit, so that the contactor is guided and / or driven by means of a magnetic bearing and / or electromagnetic control in a rolling, sliding or non-contact manner along the electro-magnetic field and thus along the circular orbit .
  • a second circular orbit is provided, along which at least one contactor can be moved, the second circular orbit being formed by second track segments arranged in a row along its circumference, the guide device being a further one of a warp thread bobbin a warp bobbin device and on which (in addition to at least one first track segment of the first orbit and a second track segment of the second orbit) at least one of the second orbit alternatively assignable third track segment is arranged and guided, with the guided absence of the second and third track segment from the second orbit the further guided warp thread, crossing the second path plane, passes the second orbit.
  • first orbit segments While the orbit segments of the first orbit are referred to as first orbit segments, the orbit segments of the second orbit are referred to as second orbit segments, the second orbit segments, according to the claim, at the same time relating to the orbit segments that can be alternatively assigned to the first orbit.
  • third track segments which are preferably assigned the same number to the second track segments, are referred to as third track segments.
  • the radially outer periphery of the first circular orbit forms the radial boundary of the first orbit plane of the circular loom and the radially outer periphery of the second circular orbit forms the radial boundary of the second orbit plane of the circular loom, within which the rotation of at least one shuttle is effected.
  • both at least a first path segment of the first circulating path and at least a second path segment of the second circulating path and also at least a third path segment are arranged on a movable guide device as a path segment trio and together with at least two warp threads carried between the three path segments form a guided one Unit.
  • the third path segment arranged on the guide device in association with a second path segment of the second circulating path interacts with the alternately movable path segment Guide device designed as a temporarily acting replacement path segment of the second path segment of the second circular orbit.
  • the second path segment of the second orbit arranged on the guide device in association with a first path segment of the first orbit can act in cooperation with the alternately movable guide device as a temporary replacement path segment of the first path segment of the first orbit.
  • the warp threads provided by the warp thread devices and carried along with the guide device can cross the two path levels of the first and / or second orbit, which is temporarily opened by the temporary relocation of the path segments, and thus change the sides of the orbits, while the first and second orbit, for example, through the second or third track segment is closed alternatively in order to ensure the passage of the shooters on the closed circulating tracks in this changing position of the warp threads.
  • the guided warp threads can be moved, crossing the respective path levels alternately and according to any sequence pattern.
  • a first path segment of the first orbit can be briefly swapped out and replaced by a second path segment of the second orbit and, at the same time, in addition to the position change of a second warp thread, a second path segment of the second orbit be temporarily outsourced and replaced by a third track segment and vice versa.
  • the path segments concerned are shifted out of the path plane of their respective orbit, with a temporary defect in the respective orbit that can be used by the warp thread carried along between the first track segment and the second track segment and the warp thread carried between the second track segment and the third track segment to move around the orbit, respectively to traverse the plane of the orbit and thus change the side of the orbit, while subsequently the shooters can pass unhindered the first orbit, for example alternatively closed by the second orbit segment, or the second orbit, alternatively closed by the third orbit segment.
  • Each guide device can be moved relative to an adjacently arranged guide device, with which the guided units of both circulating paths can also be guided relative to one another.
  • a guide device for carrying one track segment trio and guiding two warp threads or one guiding device for carrying several track segment trios and / or more than two warp threads can also be provided here.
  • the combined circular orbits enable parallel operation of several shooters with different directions of circulation and circulation cycles and different thread, tape or fiber materials, whereby a large number of different weft threads and warp threads can be processed at the same time and an even greater variety of possible weaving patterns and fabric properties is created can be.
  • Fig. 1 shows a circular loom in which a loom 1 a is arranged centrically to a weaving axis 2 of the circular loom and is surrounded by a circular orbit 3 of the circular loom.
  • the circulating track 3 has an annular, segmented track body 4 made up of 12 track segments 5 designed in the shape of ring segments, which are arranged in a row very closely, almost without any gaps.
  • Each track segment has three pairs of rails of guide rails 7 running in the shape of a ring segment, the pairs of rails (pairs of rails) 7 of the track segments 5 lined up in a row, arranged concentrically around the central weaving axis 2 of the circular loom and almost flush with one another and thus formed in a circumferential manner.
  • Two outer pairs of rails, each with two guide rails 7, are each arranged on the opposite, radially extending side walls of the track segments 5 and an inner pair of rails, each with two guide rails 7, are each arranged on an axially extending inner wall of the track segments 5 facing the weaving axis 2 (see also Fig. 2a, b ).
  • the radially outer delimitation of the web body 4 is formed by the axially extending outer walls of the web segments 5 facing away from the weaving axis 2, while the radially extending side walls of the web segments 5 delimit the web body 4 axially.
  • segmented track body 4 with the segmented guide rails 7 (rail segment pairs) together forms the circular orbit 3, the outer boundary of the track body 4 in its radial and axial extension defining the outer contour of a track plane 8 of the circular track 3.
  • the circular loom also has 12 warp bobbins 9 each with 12 warp thread bobbins 10, which are fixed to the side of the housing on a, preferably hollow cylindrical, machine housing 6 of the circular loom (see also Fig. 2a, b ).
  • a total of 12 mobile guide devices 11 are arranged on the outer circumference of the track body 4 outside of the circular orbit 3 and concentrically around the central weaving axis 2 of the circular loom.
  • Each of the guide devices 11 has a base body 12 fastened to the machine housing 6 and a positioning part 13 which can be moved axially relative to the base body 12 and to the machine housing 6 and is designed as a guide slide 13 in the exemplary embodiment.
  • the guide carriage 13 comprises a thread guide element 14 for guiding and guiding a warp thread 15, which in this exemplary embodiment is designed as a thread guide channel 14 (thread channel) directed axially in the direction of the weaving axis 2 and ends with a thread deflector in a thread outlet 16.
  • a thread guide channel 14 thread channel
  • the weaving core la has a weaving core axis 17 which, in accordance with the arrangement in this exemplary embodiment, runs congruently with the weaving axis 2 of the circular loom.
  • the divisible weaving core la is designed with a variable core cross section and thus with a non-uniform circumference. It can be rotated about its core axis 17 and can be moved along the axis 2 of the circular loom.
  • second track segments 18 are also arranged on the guide carriage 13, which have a matching guide rail 7 each with three pairs of track segments 7, all parallel to the track segments 5 of the circulating track 3 and whose rail segment pairs 7 and are equally spaced axially.
  • first path segments 5 are referred to below as first path segments 5 and the path segments 18 axially adjacent to the first path segments 5 of the circulating path 3 are referred to below as second path segments 18.
  • first path segment 5 of the circulating path 3 and an adjacent, second path segment 18 are arranged in pairs on a guide carriage 13 and are carried along with it.
  • the thread outlet 16 of the guided warp thread 15 of the respective guide carriages 13 is in each case arranged at a mean distance between the track segment pair 5, 18 of the first track segment 5 and the second track segment 18.
  • Two shooters 19 are guided along the segmented guide rails 7 of the circulating track 3, each of which has a gun carriage 20, each with a weft thread bobbin 21.
  • the weft thread 22 of the weft thread bobbin 21 is guided linearly to the current weaving point on the weaving core la in order to move the non-uniformly contoured core la while maintaining a certain thread tension.
  • the shooters 19 run by means of the gun carriage 20 along the guide rails 7, which form the guide for the rotating shooters 19 and thus define the circular running line of the shooters 19.
  • the axis of rotation of the weft thread bobbin 21 is arranged in the direction of rotation of the gate 19, so that the feeding of the weft threads 22 to the weaving core 1 a largely manages with few or without deflections.
  • the rifle cars 20 each have nine rubberized guide rollers 23, of which three guide rollers 23 each are assigned to a pair of rails 7 of the guide rails. In each case three guide rollers 23 are held and guided on both sides by the two outer pairs of rails of the guide rails 7 and three further rollers 23 are guided on both sides by the inner pair of rails of the guide rails 7.
  • Each contactor 19 can be driven and controlled separately by a motor (direct drive) located on the gun carriage 20, whereby the power supply can take place, for example, via several sliding contacts or energy storage devices, and the control commands can be transmitted, for example, via radio control signals (not shown).
  • a motor direct drive located on the gun carriage 20, whereby the power supply can take place, for example, via several sliding contacts or energy storage devices, and the control commands can be transmitted, for example, via radio control signals (not shown).
  • the contactors 19 can therefore roll independently of one another at the same or different speeds along the guide rails 7 of the circulating track 3.
  • the guide rollers 23 are designed in such a large number and are arranged far apart from one another that the rifle car 20 always makes contact with at least two track segments 5 as it rotates and can thus bridge one or even more separating points of the segmented track body 4 at the same time, which ensures smooth and smooth running the rifle car 20 provides.
  • Fig. 1 , 2a, b the two revolving rifle cars 20 of the riflemen 19 are shown schematically in the 6 o'clock and 12 o'clock position along the orbit 3.
  • the guide carriages 13 arranged around the circumference of the circulating track 3 are each mounted so as to be linearly displaceable relative to one another in the axial direction parallel to the weaving axis 3.
  • two parallel, elongated guide grooves are provided on the base body 12 in which the guide carriage 13 is slidably supported and guided with two corresponding guide webs (not shown).
  • the guide grooves and guide webs are axially aligned in the direction of the weaving axis 2 so that the guide carriages 13 with the thread channel 14 and the warp threads 15 carried along can each be moved essentially perpendicular to the path plane 8 of the circulating path 2 and parallel to the weaving axis 2.
  • the adjacent track segments 5, 18 in question have sliding surfaces on their circumferentially facing end faces along which they slide when they move relative to one another (not shown).
  • the accuracy of the axial guidance of the track segments 5 and 18 is increased by corresponding guide grooves and guide webs (not shown) provided on the facing end faces.
  • the rapid alternating movement of the guide carriages 13 is generated and controlled via individual, switchable electrical linear drives acting in two directions (not shown).
  • the to-and-fro movement of the guide carriage 13 can be controlled along a rack or threaded rod (not shown).
  • the warp thread bobbins 10 of the warp bobbin devices 9 are each arranged in a straight extension of the thread channel 14 of the guide carriage 13 on the machine housing 6.
  • the supply of the warp threads 15 from the warp thread bobbins 10 via the thread channel 14 of the guide carriage 13 further to the weaving point on the weaving core la is thus largely straight with a few deflections, whereby the thread tension of the warp threads 15 can be maintained at a high level.
  • the warp thread 15 passes the flaw in the circulating path 3 that is temporarily formed by the briefly missing path segments 5 and 18 and can therefore pass through the path plane 8 or through the temporarily open circulating path 3 for the purpose of changing sides can be conveyed contact-free in both directions.
  • the warp threads 15 running to the weaving point assume a variable angle (weaving angle) with respect to the extent of the path plane 8 when they are alternately guided axially back and forth.
  • the weaving angle of the warp threads 15 is approximately 0 °; in the change position to allow passage of the gate 19, the maximum weaving angle of the warp threads 15 is reached (cf. Fig. 2a, b ).
  • the respective temporarily generated defect in the interrupted orbit 3 is considered a formed empty space (empty space) through which the respective warp thread 15 can be carried out unhindered.
  • the fact that there are no components of the guide device 11 between the track segments 5, 18 means that only the gates 19 determine the outer axial limit for the axial positioning of the warp threads 15 when they pass through the gates 19, so that the warp threads 15 one optimally small maximum weaving angle can form what During the change in position of the warp threads 15 there is a slight change in the angle of the weaving angle of the warp threads 15 to the web plane 8.
  • This angular limitation of the movement of the warp threads 15 for the page change also ensures that a high thread tension of the warp threads 15 is maintained.
  • the rectilinear guidance of the guide carriages 13 of the guide device 11 perpendicular to the path plane 8 also enables very short paths for the movement of the warp threads 15 and, in conjunction with the aforementioned fast-acting linear drives of the guide carriages 13, consequently causes the warp threads 15 to alternate particularly effectively on both sides of the path plane 8.
  • the Figures 2a, b show two operating phases of the weaving process in the circular loom with alternating positioning of the guide carriages 11 with the respective track segments 5, 18 and warp threads 15 during the rotation of the two shooters 19 by 180 °.
  • the two rotating gates 19 are in the 6 o'clock and 12 o'clock position of the circular loom, with some guide carriages 13, including the guide carriage 13 of the guide device 11 arranged in the 12 o'clock position, with the warp thread 15 and the second track segment 18 in the image plane to the right of the orbit 3 and further guide carriages 13, including the guide carriage 13 of the guide device 11 arranged in the 6 o'clock position, with the warp thread 15 and the first track segment 5 in the image plane to the left of the orbit 3 are located, so that the space for the passage of the shooters 19 at the 6 o'clock and 12 o'clock position is cleared by the warp threads 15 spread from the plane of the web 8 with the formation of a shed.
  • Orbit 3 is closed circumferentially at the same time by the first track segment 5, while the adjacent second track segment 18 is in the standby position to the right of the orbit 3. If the guide carriage 13 of the guide device 11 is positioned in the image plane to the left of the orbit 3, the orbit 3 is alternatively closed all round by the adjacent second track segment 18, while the first track segment 5 is in the standby position to the left of the orbit 3.
  • Any number of guide carriages 13, for example every second, third or all guide carriages 13 of the guide devices 11, can be located to the right or left of the orbit 3 in the image plane during one revolution of the contactor 19.
  • Figure 2b shows the operating phase of the circular loom in which the contactor 19, which was previously at the 6 o'clock position, moves through the 12 o'clock position and vice versa, with some guide carriages 13, including the guide carriage 13 of the guide device arranged in the 12 o'clock position 11, with the warp thread 15 and the first track segment 5 in the plane of the picture to the left of the orbit 3, and further guide carriages 13, including the guide carriage 13 of the guide device 11 arranged in the 6 o'clock position, with the warp thread 15 and the second track segment 18 are located in the image plane to the right of orbit 3, while the shooters 19 pass through the 6 o'clock and 12 o'clock positions.
  • any number of guide carriages 13, for example every second, third or all guide carriages 13 of the 12 guide devices 11, can be located in the image plane to the right or left of the orbit 3.
  • the orbit 3 is immediately through the first 5 or alternatively the second track segment 18 closed all around as soon as the contactors 19 pass through the orbit 3.
  • the contactors 19 can rotate around the guide rails 7 at symmetrical or asymmetrical distances from one another.
  • the warp threads 15 are alternately spread in opposite directions in the above-described or another alternating mode of the guide carriages 13, which results in an undulation of the warp threads 15 with the weft threads 22, the shooters 19 rotating on the orbit 3 in a certain mode, to produce a hollow profile-like fabric 25 is done with the desired weave pattern, as in Fig. 2a, b shown.
  • the non-uniformly profiled weaving core la can be moved axially along the weaving axis 2 during the weaving process, the fabric 25 being placed in a stationary / stationary manner on the weaving core la.
  • the axial movement of the weaving core la can take place, for example, quasi-stationary, discontinuously or continuously, depending on the desired weaving result.
  • a forward and backward movement of the weaving core 1 a to produce a plurality of fabric layers 25 is also possible.
  • the weaving core la can also be set in rotation about its weaving core axis 17 or inclined to the weaving axis 2 in order to change the angular position of the warp threads 15 and the weft threads 22 of e.g. +/- 60 ° to the weaving core axis 17 on the To generate web core la.
  • the uniform weaving structure shown as a result of a uniform weaving mode can also be changed during the weaving process by means of the individual drive and the control of both the shuttle carriage 20 and the guide carriages 13 and the weaving core 1a.
  • the rifle car 20 can due to the precisely positionable by means of the guide carriage 13 track segments 5, 18 with the Almost flush with one another, the guide rails 7 rotate very precisely and uniformly and consequently at high running speed and at the same time apply a high thread tension to the weft thread 22 that is carried along.
  • the rapid, alternating spreading of the warp threads 15 by means of the guide carriages 13 which can be operated over short distances also enables the running speed of the gates 19 rotating on the guide rails 7 to be increased.
  • the loom la After the loom la has been moved, it can be removed sideways from the circular loom and the circular loom can be equipped with another loom to be woven.
  • the circular loom is therefore particularly suitable for weaving large, irregularly contoured weaving cores with contour-conforming technical fabrics, e.g. for the production of woven hollow-profiled fiber preforms for wheel rims.
  • FIGS. 3 , 4 and 5 show a second embodiment of the circular loom according to the invention, here for weaving a cylindrical weaving core lb.
  • the warp bobbin devices 9 are fixed to the housing essentially as an extension of the radial extension of the circular orbit 3 on an outer wall of the machine housing 6 of the circular loom.
  • the after Fig. 3 and 4th The 12 warp bobbin devices 9 provided are arranged essentially centrally in the extension of the path plane 8 of the circulating path 3.
  • the after Fig. 5 The 24 warp bobbin devices 9 provided are arranged in pairs next to one another in the axial direction, the mirror line of a pair of the warp bobbin devices 9 being arranged essentially centrally in the extension of the path plane 8.
  • the 12 warp bobbin devices 9 according to Fig. 3 and 4th are each assigned to a movable guide device 11, so that one warp thread 15 is guided per guide device 11.
  • the 24 warp bobbin devices 9 according to Fig. 5 are each assigned in pairs to a movable guide device 11, so that two warp threads 15 are guided per guide device 11.
  • the base body 12 of the guide device 11 fastened to the machine housing 6 has an axially extending passage 24 for the warp thread to pass through.
  • the guide carriage 13 of the guide device 11 after Figures 4 and 5 each has a thread guide element 14 with a radially directed thread channel 14 to which the thread outlet 16 is connected.
  • the warp threads 15 provided run individually through the axially extending passage 24 of the base body 12 and through the radially directed thread channel 14 of a guide carriage 13, whereas those of the warp bobbin device 9 follow Fig. 5
  • the warp threads 15 provided run in pairs through the axially extending passage 24 of the base body 12 and a radially directed thread channel 15 of each guide carriage 13.
  • the radially directed thread channel 14 with the warp thread 15 is located behind Fig. 4 or the thread channel 14 with the two warp threads 15 after Fig. 5 alternately in a position to the right and left of the orbit 3 or the orbit plane 8.
  • the cylindrical loom 1b When the cylindrical loom 1b is moved, it can be fixed in a stationary manner during the weaving process, the fabric 25 being drawn off continuously in the axial direction along the weaving axis 2 of the circular loom or along the path core axis 17 of the weaving core 1b.
  • the weaving core 1b is preferably aligned in a congruent axial position to the weaving axis 2.
  • a housing-fixed loom 26 is arranged concentrically spaced around the loom lb, which additionally homogenizes the feed of the warp threads 15 and weft threads 22 to the weaving point by dampening their thread oscillations and compensating their thread tension fluctuations, which is particularly evident in circular looms with a larger diameter of the orbit 3 and thus with a greater distance between the weft thread bobbin 21 and the thread outlets 16 of the thread guide elements 14 of the guide devices 11 from the weaving core 1b has an advantageous effect.
  • FIGS. 6 , 7a, b show a third embodiment of the circular loom according to the invention for weaving a cylindrical weaving core lb.
  • the 12 warp bobbin devices 9 are each arranged on a guide carriage 13 of the 12 guide devices 11 and are carried along with this in the piggyback principle.
  • the guide carriage 11 has a radially extending shaft for carrying the warp bobbin device 9 which protrudes through the axially extending passage 24 of the base body 12 of the guide device 11.
  • the radially directed thread channel 14 is also designed to be integrated in the elongated shaft.
  • the warp bobbin device 9 is arranged on the guide carriage 13 in such a way that the warp thread bobbin 10 is essentially in a straight line extension to the radially directed thread channel 14 and thus always enables a deflection-free path of the warp thread 15 through the thread channel 14.
  • the Figures 7a, b show two operating phases of the weaving process in the circular loom with alternating positioning of the guide carriages 13 with the warp bobbin devices 9 during the rotation of the two contactors 19 by 180 °.
  • the two rotating gates 19 are in the 6 o'clock and 12 o'clock position of the circular loom, with the guide carriage 13 of the guide device 11 arranged in the 12 o'clock position with the warp bobbins, among other things, forming a warp thread piling Device 9, the warp thread 15 and the second track segment 18 (in standby position) in the plane of the drawing to the right of the orbit 3 and, among other things, the guide carriage 13 of the guide device 11, which is arranged in the 6 o'clock position, with the warp bobbin device 9, the warp thread 15 and the first orbit segment 5 (in the ready position) is located in the image plane to the left of the orbit 3, while the shooters 19 pass through the 6 o'clock and 12 o'clock positions.
  • Figure 7b shows the operating phase of the circular loom in which the contactor 19, which was previously at the 6 o'clock position, passes through the 12 o'clock position and vice versa, with the guide carriage 13 of the guide device 11 arranged in the 12 o'clock position now moving with the Warp bobbin device 9, the warp thread 15 and the first track segment 5 (in the ready position) in the image plane to the left of the orbit 3 is and, among other things, the guide carriage 13 of the guide device 11, which is arranged in the 6 o'clock position, with the warp bobbin device 9, the warp thread 15 and the second track segment 18 (in standby position) is in the plane of the drawing to the right of the orbit 3, while the Sagittarius 19 going through the 6 o'clock and 12 o'clock positions.
  • the Fig. 8 shows the circular loom Figures 6 to 7 , but with 24 warp bobbin devices 9, which are arranged here in pairs on the 12 guide devices 11, in particular on the respective guide carriage 13 with a radially extending shaft and are carried along with it.
  • the Figure 9 shows a fourth embodiment of the circular loom according to the invention for weaving a cylindrical weaving core lb.
  • the design of the guide devices 11 is a further development of the design and arrangement of the guide devices 11 Fig. 1 , 2a, b provided, so that in this regard the above description of the first embodiment of the circular loom with regard to the matching features and their advantages of the guide devices 11 also applies to the circular loom according to the fourth embodiment described here, so that in this regard reference is made to the corresponding explanations.
  • the 12 warp bobbin devices 9 are each arranged in a spacing space between a pair of track segments 5, 18, which is each arranged on a mobile guide carriage 13 of the 12 guide devices 11.
  • Each of the warp bobbin devices 9 is fastened on both sides to the facing side walls of the first and second track segments 5, 18 and is thus indirectly carried along with the guide carriage 13 of the guide device 11.
  • the warp thread 15 provided by the warp bobbin device 9 can be removed directly from the warp thread bobbin 10 and fed to the weaving point on the weaving core 1b, this being carried along by the axial movement of the guide carriage 13 for the required alternating page change of the warp thread 15.
  • the guide carriage 13 advantageously does not require a thread channel or thread outlet for the guide and the outlet of the warp thread 15.
  • Fig. 9 shows the operating phase of the circular loom in which, among other things, the guide carriage 13 of the guide device 11, which is arranged in the 12 o'clock position, with the warp bobbin device 9 and its warp thread 15 and with the first web segment 5 (in standby position) are in the plane of the figure to the left of the Orbit 3 is located while the contactor 19 passes through the 12 o'clock position.
  • FIGS. 10a, b show a fifth embodiment of the circular loom according to the invention for weaving a cylindrical weaving core lb.
  • the circular loom according to this embodiment has two circular orbits 3.1, 3.2, arranged parallel to one another, for the rail-guided circulation of two shooters 19 each, the second circular orbit 3.2 and its track segments 18 being identical to the first orbit 3.1 and its track segments 5.
  • the path segments 18 of the second orbit 3.2 relate to the path segments 18, which are arranged alongside the first path segments 5 and which can be assigned to the first orbit as an alternative.
  • third path segments 27 are arranged on the respective guide carriages 13, which have a matching guide rail 7, each with three pairs of rail segments 7, all parallel to the path segments 18 of the second circulating path 3.2 and their rail segment pairs 7 and are equally axially spaced.
  • the path segments 18 of the second circulating path 3.2 are referred to below as second path segments 18 and the path segments 27 arranged next to the second path segments 18 of the second circulating path 3.2 are referred to below as third path segments 27.
  • first path segment 5 of the first orbit 3.1, a second path segment 18 of the second orbit 3.2 and an adjacent, third path segment 27 are jointly on one Guide carriages 13 of the 12 guide devices 11 are arranged and are carried along and positioned with this.
  • the circular loom also has 24 warp bobbin devices 9, each with 24 warp thread bobbins 10, which are arranged in pairs on one axially movable guide carriage 13 of the 12 guide devices 11, the two warp bobbin devices 9.1, 9.2 each on a radially extending shaft of the guide carriage 13 are held and are thus carried along with the guide carriage 13.
  • the guide carriage 13 comprises two radially extending thread channels 14.1, 14.2 which are each formed in a shaft and each end in a thread outlet 16.1, 16.2 , wherein the first thread channel 14.1 or thread outlet 16.1 is arranged at an average distance between the first and second track segments 5, 18 and the second thread channel 14.2 or thread outlet 16.2 is arranged at an average distance between the second and third track segments 18, 27.
  • the warp bobbin devices 9.1, 9.2 are arranged in such a way that their warp thread bobbins 10 are essentially in a straight line extension of the radially directed thread channels 14.1, 14.2 and thus always enable a deflection-free path of the warp thread 15 through the respective thread channel 14.
  • the Figures 10a, b show two operating phases of the weaving process in the circular loom with alternating positioning of the guide carriages 13 with the warp bobbin devices 9 during the rotation of the two contactors 19 in the two orbits 3.1, 3.2 by 180 ° each.
  • Two further warp thread plyings are in the operating phase after Figure 10a Among other things, the guide carriage 13 of the guide device 11, which is arranged in the 6 o'clock position, is shifted to the right in the plane of the drawing in such a way that the second warp bobbin device 9.2 with the second warp thread 15.2 and the third track segment 27 are positioned to the right of the second orbit 3.2 third track segment 27 functions in the ready position and the second orbit 3.2 is regularly closed by the second track segment 18, and further the first warp bobbin device 9.1 with the first warp thread 15.1 is positioned between the first and second orbit 3.1, 3.2, the first orbit 3.1 is regularly closed by the first track segment 5, while the contactors 19 of the two orbits 3.1, 3.2 pass through the 6 o'clock and 12 o'clock positions.
  • the guide carriages 13 of the guide devices 11 arranged in the 6 o'clock and 12 o'clock positions are shifted together to the right in the plane of the drawing, so that the respective second warp bobbin device 9.2 with the second warp thread 15.1 and the third track segment 27 to the right of the second circulating path 3.2 are positioned, the third path segment 27 functioning in the standby position and the second circulating path 3.2 is regularly closed by the second path segment 18, and further the respective first warp bobbin device 9.1 with the first warp thread 15.1 between the first and second circulating path 3.1, 3.2 is positioned, the first orbit 3.1 being regularly closed by the first orbit segment 5, while the contactors 19 of the two orbits 3.1, 3.2 pass through the 6 o'clock and 12 o'clock positions.
  • the warp thread 15.1 of the first warp bobbin device 9.1 crosses the first path plane 8.1 of the first orbit 3.1
  • the warp thread 15.2 of the second warp bobbin device 9.2 crosses the second path plane 8.1 of the second Crosses orbit 3.2.

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  • Textile Engineering (AREA)
  • Looms (AREA)
EP20187489.8A 2019-07-24 2020-07-23 Métier à tisser circulaire à trajectoire périphérique Active EP3770311B1 (fr)

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DE102019120035.0A DE102019120035B3 (de) 2019-07-24 2019-07-24 Rundwebmaschine mit Umlaufbahn
DE102019120037.7A DE102019120037B3 (de) 2019-07-24 2019-07-24 Rundwebmaschine mit Umlaufbahn

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CN114164542A (zh) * 2021-12-15 2022-03-11 国网江苏省电力有限公司南通供电分公司 一种织管机磁悬浮放纬机构

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CH663227A5 (de) * 1984-06-08 1987-11-30 Huemer Franz Xaver Rundwebmaschine.
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AT383834B (de) * 1985-10-10 1987-08-25 Chemiefaser Lenzing Ag Verfahren zum herstellen eines schlauchgewebes sowie rundwebmaschine zur durchfuehrung des verfahrens
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JPH0684574B2 (ja) * 1989-05-02 1994-10-26 株式会社鳥居鉄工所 円形織機の経糸開口装置
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US11352721B2 (en) 2022-06-07
CN112281284A (zh) 2021-01-29
US20210032784A1 (en) 2021-02-04
EP3770310A1 (fr) 2021-01-27
US11155941B2 (en) 2021-10-26
US20210025087A1 (en) 2021-01-28
CN112281283A (zh) 2021-01-29

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