WO1998014651A1 - Verfahren und vorrichtung zum umeinanderschlingen von wenigstens zwei laufenden fäden - Google Patents
Verfahren und vorrichtung zum umeinanderschlingen von wenigstens zwei laufenden fäden Download PDFInfo
- Publication number
- WO1998014651A1 WO1998014651A1 PCT/EP1997/005232 EP9705232W WO9814651A1 WO 1998014651 A1 WO1998014651 A1 WO 1998014651A1 EP 9705232 W EP9705232 W EP 9705232W WO 9814651 A1 WO9814651 A1 WO 9814651A1
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- WO
- WIPO (PCT)
- Prior art keywords
- threads
- rotatable element
- guide groove
- cylinder
- edge
- Prior art date
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
- D03C7/08—Devices for twisting warp threads repeatedly in the same direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/28—Reciprocating or oscillating guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/10—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers for making packages of specified shapes or on specified types of bobbins, tubes, cores, or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- the invention relates to a method and a device for looping at least two running threads.
- Methods and devices for looping at least two running threads together are used on twisting machines for twisting threads. Furthermore, methods and devices for looping at least two running threads in weaving machines are used as a means of forming an edge binding, with at least two edge threads being looped around one another and inserted between the weft threads. This creates a selvedge or a waste belt.
- thread guiding means are used which are moved back and forth.
- a first type of thread guide means is used, which consists of a needle with a thread eye, in which a first edge thread is guided.
- a second thread guiding means is used, which consists of two elements in which diagonally opposite slots are provided for guiding the second edge thread.
- the two thread Guide means are moved in opposite directions to form a shed from the edge threads.
- the two elements of the second thread guiding means are also moved relative to one another over a short distance, so that a lateral movement of the edge thread guided through the slots is obtained.
- Such edge forming devices with reciprocating thread guide means cause noise and vibrations, which are essentially caused by the additional wear-related play in the drive means of the thread guide means.
- a rotating disk is provided which is provided with diametrically opposite thread guide eyes with respect to its axis of rotation, in each of which an edge thread is guided.
- thread eyes are attached to an endless, driven chain which moves the thread eyes essentially in accordance with shedding means of the weaving machine.
- the invention has for its object to provide a method and an apparatus of the type mentioned that no thread guide eyes or the like. having.
- the threads are essentially transverse and at least approximately tangential to a red animalable element run and are guided in at least one guide groove of the rotatable element, which moves the threads back and forth in the axial direction of the rotatable element between two end positions and crosses with one another between the end positions.
- Such a device is easy to manufacture and only requires a simple rotary drive.
- the threads running only a short part of their length in the guide groove migrate along the guide groove, so that wear of the device, which is practically unavoidable, does not only occur at a single point, but rather depends on the length of the guide groove or Guide grooves largely evenly distributed '.
- wear of the device which is practically unavoidable, does not only occur at a single point, but rather depends on the length of the guide groove or Guide grooves largely evenly distributed '.
- it is to be expected that a longer service life will be obtained than in devices in which the threads are guided in a guide eye.
- the at least one thread guide groove guides the threads at a radial distance from one another during the crossing. This ensures that the at least two threads do not interfere with one another during the crossing, while it is further ensured that the threads always cross in a predetermined sense.
- a rotatable element which has at least one endless guide groove, which extends helically in the axial direction, has at least one crossing point and in which the at least two threads are guided, which are essentially transverse and approximately are aligned tangentially to the rotatable element.
- a rotatable element of this type is known in principle as a so-called thread guide drum (DE 4 237 860 AI).
- the thread guide drum which is driven to rotate, drives a cross-wound bobbin by means of frictional engagement.
- the thread guide drum is provided with a thread guide groove to cross-lay the individual thread running onto the package.
- the intersecting sections of the at least one guide groove have a different radial depth at least at the crossing point of the threads. It is thereby achieved that the threads are crossed in a defined manner at the crossing point without they hindering one another and running against one another.
- the at least one guide groove has sections in the region of one of the axial end positions, which run in the circumferential direction of the element. This ensures that the axial end positions remain constant over a certain period of time. It is particularly advantageous if the device for edge formation is used in weaving machines, since in this way the compartment formed by the edge threads can be kept open longer in order to enable the insertion of one or more weft threads.
- the rotatable element is arranged on an axis of an electric drive motor.
- This configuration is also preferably suitable for an edge forming device of a weaving machine, since it is of compact construction and can be mounted on a weaving machine in a simple manner.
- the rotatable element has a guide groove which has a section which extends over 360 ° of the circumference of the cylinder surface from one axial end position to the other axial end position, and a section which has an opposite slope also extends over 360 ° of the circumference of the cylinder surface between the two axial end positions, so that the two sections form an intersection approximately in the axial center of the cylinder surface.
- the cylindrical element can have a relatively small diameter, as a result of which the device can be kept compact and is particularly suitable for an edge-forming device of a weaving machine.
- the rotatable element has at least two endless guide grooves which run at least twice between the axial end positions over a circumferential angle of 360 ° of the rotatable element and which intersect at least twice per revolution of the rotatable element.
- the threads can be wrapped around each other twice per revolution of the rotatable element.
- the at least two guide grooves run between an end position in the region of an axial end of the rotatable element and an end position in the region of the axial center of the rotatable element, with intersection points being provided in the region of the middle end positions.
- FIG. 1 shows a perspective view of a detail of a weaving machine with a device according to the invention
- FIG. 2 is a view in the direction of arrow F2 of FIG. 1 of the device according to the invention (in a schematic representation), 3 is a radial view of a rotatable element with a guide groove,
- FIG. 5 is a view similar to FIG. 2 during another thread position
- FIG. 6 is a view similar to FIG. 2 with yet another thread position
- FIG. 12 is an illustration of an edge binding which is formed with the rotatable element according to FIG. 10,
- FIG. 13 is a radial view of a rotatable element provided with three guide grooves
- FIG. 14 shows a development of the jacket of the rotatable element according to FIG. 13, 15 is an illustration of an edge binding that can be produced with the rotatable element according to FIG. 13,
- 19 is a partially sectioned development of a jacket of a further embodiment of a rotatable element.
- the loom shown in a detail in FIG. 1 is provided with shed forming means, for example heald frames 1, 2, which form a shed 5 from warp threads 3, 4.
- shed forming means for example heald frames 1, 2, which form a shed 5 from warp threads 3, 4.
- a weft thread 37 is inserted, which is attached to the edge of a fabric formed from warp threads and weft threads.
- the fabric 6 produced is drawn off with a take-off device, not shown.
- the weaving machine additionally contains an edge forming device 7, which is shown schematically in FIG. 1.
- the edging device 7 works with two edging threads 8, 9, which essentially form looms corresponding to the shed 5 formed in each case, into which the inserted weft thread 37 extends, so that a selvedge or a waste band extends from the edging threads 8, 9 and the weft threads is formed.
- the edge forming device 7 contains a rotatable element in the form of a cylinder 10.
- This cylinder 10 rotates on an axis 12 attached to the frame 11.
- This frame 11 is fastened, for example by means not shown, adjustable in the weft direction to a loom frame, not shown.
- a delivery unit 13 is provided for the edge threads 8, 9, which untwists the edge threads between the cylinder 10 and the delivery unit 13 should. This untwisting takes place in that the delivery unit 13 rotates counter to the direction in which the cylinder 10 rotates the edge threads 8, 9.
- Such a delivery unit 13 and its drive are described in US Pat. Nos. 3,880,199 and 3,998,247 and in CS 172 136.
- a guide groove in the form of a guide groove 14 which guides the two edge threads 8, 9 so that they are looped around one another.
- the edge threads 8, 9 run approximately transversely and approximately tangentially to the cylinder 10, but with a certain wrap angle, so that they are in engagement with the guide groove 14 of the cylinder 10 over a defined length and in this guide groove 14 are guided.
- the edge threads 8, 9 are located on the same side of the cylinder 10.
- the axis of rotation 16 of the cylinder 10 is oriented (FIG. 1) so that it runs almost parallel to the direction of movement B of the shedding means (heald frames 1, 2).
- the selvage threads 8, 9 form a shed by means of the edging device, into which the weft thread 37 can be inserted and which lies in the weft direction in an extension of the shed 5 formed by the warp threads 3, 4.
- the cylinder 10 shown on a larger scale in a radial view in FIG. 3 has an endless guide groove 14 which runs around the cylinder 10 in two helical sections 18, 19 in opposite directions.
- the helical sections 18, 19 each extend over 360 ° between axial end positions D and E, which are located in the axial end regions of the cylinder 10.
- FIG. 4 shows the course 17 of the radial depth of the guide groove 14 in relation to the outer circumference DO of the cylinder 10.
- This representation is made by straight lines which are drawn between the end positions D, E of the guide groove 14, so that the straight lines are only at 0 °, 180 °, 360 °, 540 ° and 720 ° coincide with the actual position of the guide groove 14 of the cylinder 10 in the direction A.
- This representation was chosen to show the course 17 of the depth more clearly.
- the sections 18, 19 have different depths at the crossing point in the jacket 15.
- the edge threads 8, 9 which intersect at this crossing point are thus at different radial distances from the axis of rotation and at a distance from one another.
- the depth of the intersecting sections 18, 19 is designated D18 and D19.
- the less deep section 19 has widenings 20, 21, so that an edge thread guided in this section 19 continues in this section 19, although the section 19 is interrupted in the region of the intersection.
- the point 22 must be arranged at a greater radial distance than the point 23 and / or the point 24 must be arranged at a smaller radial distance than the point 25. Since two widenings 20, 21 are provided, the cylinder 10 can be rotated in both directions of rotation . If only one widening 20 or 21 is provided, the cylinder 10 may only be driven in one direction of rotation.
- the cylinder may only be driven clockwise, whereas in the case of only broadening 21 the cylinder 10 (likewise in plan view) may only be driven counterclockwise.
- the sections 18, 19 intersect at a relatively large angle (approximately 90 °), which is advantageous because it prevents an edge thread running in the less deep section 19 from reaching the lower section 18.
- the edge thread running in the deeper section 28 cannot easily get into a less deep section.
- the realization of sections with different depths at the crossing point is not only of advantage to the edge threads in the radial direction C. of the cylinder 10 to move, but also to keep the edge threads in the respective section.
- FIG. 2 the cylinder is shown in position 0, i.e. in a position in which the edge thread 8 is at the top (or in FIG. 4 at 0 °), while the edge thread 9 is at the bottom (or in FIG. 4 at 360 °). If the cylinder 10 is rotated through 180 ° in the direction of rotation P shown (against the running direction of the edge threads 8, 9), the edge threads 8, 9 intersect. The edge thread 8 is located at the crossing point in the deeper section 18 while the edge thread 9 is located in the less deep section 19, so that the position shown in FIG. 5 is created.
- the edge threads 8, 9 are located in the radial direction of the cylinder 10 in different radial positions and at a mutual distance from one another. If the cylinder is turned through 180 ° again, the edge thread 8 is at the bottom and the edge thread 9 is at the top. If the cylinder is then rotated through 180 ° again, the edge threads 8, 9 cross again, the edge thread 9 being in the deeper section 18 and the edge thread 8 being in the less deep section 19, so that the one shown in FIG Position is obtained. If the cylinder 10 is rotated further by 180 °, the position shown in FIG. 4 results again. This makes it clear that the edge threads 8, 9 also cross in the radial direction of the cylinder 10 when they cross in the axial direction A of the cylinder. As a result, the edge threads 8, 9 are looped around one another.
- edge binding which is achieved by means of the edge threads 8, 9 when the cylinder 10 rotates by one revolution with each weft insertion, is shown on a larger scale in FIG. 7.
- the edge threads 8, 9 are wrapped around one another and around the successive weft threads 37, so that the edge forming device 7 with the cylinder 10 according to FIG. 3 is like a so-called edge turner works, ie a device that wraps the edge threads 8, 9 around successive weft threads 37.
- the edge binding described is achieved with at least the two edge threads 8, 9, in which the edge threads 8, 9 are guided over a certain length section in the guide groove and by rotating the cylinder in the axial direction of the Cylinder 10 are shifted.
- the selvedge threads 8, 9 are shifted in the opposite direction in the axial direction A between the end positions D and E and intersect in the axial direction A at the crossing point, which is approximately in the middle between the two end positions D and E.
- the end positions D and E are located in the region of the front ends of the cylinder 10.
- the depth profile of the guide groove 14 makes it possible not only to guide and cross the edge threads 8, 9 in the axial direction A of the cylinder 10, but also the edge threads 8, 9 to guide and cross in the radial direction of the cylinder 10. This is achieved in that the sections 18, 19 have different radial depths D18 and D19 in the region of the crossing point. This also has the advantage that the edge threads 8, 9 do not rub against one another while they cross.
- the cylinder 10 is rotatably supported on an axis 12 by means of bearings 26.
- a drive motor is arranged in the axial bore 27 of the cylinder.
- the drive motor consists of a rotor 28 connected to the cylinder 10 and a stator 29 connected to the non-rotating axis 12, which has rods, for example.
- the stator has windings which are connected to the control unit 38 of the weaving machine shown in FIG. 1 via electrical lines, not shown.
- a rotary angle transmitter is expediently attached to the cylinder 10 in a manner not shown, with which the angular position sitions of the cylinder can be entered in the control unit 38 so that the control unit 38 can drive the drive motor and thus the cylinder 10 at a predetermined speed in a predetermined angular position.
- a stepper motor is installed in the cylinder, which is controlled by the control unit 38.
- the integration of a drive motor in the cylinder 10 has the advantage that the edge forming device 7 can be made very compact and consists of a few details. This edge forming device 7 can be constructed in modules and, in particular, can also be easily assembled on a weaving machine or disassembled just as easily. As a result, it can be adapted to the width of a fabric 6, for example by simply moving the frame 11.
- the sections 18, 19 of the guide groove 14 have a V-shaped cross section.
- other cross-sectional shapes are also possible, which differ with respect to the slope and the angle and which have the required roundings.
- the delivery unit 13 expediently contains a drive motor, not shown, which is also controlled via the control unit 38 of the weaving machine.
- This drive motor is controlled with the same speed curve as the drive motor of the cylinder 10, but with a direction of rotation that untwists the edge threads 8, 9 rotated by the cylinder 10.
- compensation devices (not shown) can also be provided, which hold the edge threads 8, 9 under a predetermined tension and stretched.
- FIG. 7 can also be achieved by means of a cylinder 10 which has two guide grooves 32, 33 corresponding to FIG. 9.
- Fig. 9 shows the development of the jacket of such a cylinder 10 with the shape of the two guide grooves 32, 33.
- the guide grooves 32 and 33 run as endless coils over 360 ° of the circumference of the cylinder 10 and intersect twice per revolution of the cylinder 10.
- the guide grooves 32, 33 have sections 39, 40 and sections 41, 42 with different depths.
- the section 39 of the guide groove 32 lies deeper than the section 40 of the guide groove 33.
- the section 41 of the guide groove 32 is less deep than the section 42 of the guide groove 33.
- the less deep sections 40 and 41 are designed as shown in FIG have widenings by means of which an edge thread is held in sections 40 and 41, respectively. 7, an edge thread 8 is guided in the guide groove 32 and an edge thread 9 in the guide groove 33.
- the cylinder is driven in such a way that it performs a rotation of 180 ° per weft insertion.
- the guide grooves 32, 33 which are mirror-symmetrical to the axial center of the cylinder 10, are designed so that the axial end positions are reached twice over a circumferential angle of 360 °, that is, each after a circumferential angle of 180 °. If the slope of the helical guide grooves 32 and 33 of the slope of the guide groove 14 of the embodiment according to FIG. 3 is to remain the same, a cylinder 10 must be used in the embodiment according to FIG. 9, the diameter of which is twice as large as the diameter of the cylinder 10 Figure 3 is.
- the cylinder is provided with two guide grooves 30 and 31, each of which carries an edge thread 8 or 9.
- the guide groove 30 runs from the area of the upper end of the cylinder as an endless spiral to slightly beyond the axial center.
- the guide groove 31 also extends from the area of the lower end of the cylinder from below somewhat beyond the axial center.
- the guide grooves 30, 31 run twice between their two axial end positions over a circumferential angle of 360 ° and forth, so that they intersect at four points per revolution of the cylinder 10, ie form four crossing points.
- the depth profile of the guide grooves 30 and 31 is shown so that the deeper sections are shown by unbroken lines and the less deep sections by broken lines. The less deep sections have the widenings shown in FIGS. 3 and 9, which are not shown in FIGS. 10 and 11, in order to make the depth profile clearer.
- the guide groove 30 has a constant depth, while the guide groove 31 has a depth profile which is changed in such a way that the guide groove 31 at the intersection points of the guide grooves 30, 31 is once deeper and once less than the guide groove 30.
- both guide grooves 30, 31 it is also possible to design both guide grooves 30, 31 with a changing depth profile. Since the sections of the guide grooves 30, 31 have a different depth at the intersection points, the edge threads 8, 9 intersect both in the axial direction A and in the radial direction C of the cylinder 10. The edge threads 8, 9 intersect at 4 intersection points, which are mutually offset by 180 ° of the circumference of the cylinder 10.
- the edge formation device 7 formed from the cylinder 10 according to FIG. 10 functions as a so-called half-edge turner, which loops the edge threads 8, 9 according to the representation according to FIG. 12, half around successive weft threads 37.
- the delivery unit 13 stands still.
- the cylinder 10 is provided with three guide grooves 30, 31, 34 for guiding an edge thread 8, 9, 35, respectively.
- the three guide grooves 30, 31, 34 have a depth profile, by means of which an edge binding according to FIG. 15 with the three edge threads 8, 9, 35 is produced.
- the guide grooves 30, 31 of the embodiment according to FIGS. 13 and 14 are designed corresponding to the guide grooves 30, 31 of the embodiment according to FIGS. 10 and 11.
- the guide groove 34 runs parallel to the guide groove 31 offset in the axial direction of the cylinder 10, so that it forms a total of four intersections with the guide groove 30 over 360 ° of the circumference. As can be seen from FIG. 13, the guide groove 34 is deeper at the point of intersection with the guide groove 30 if the subsequent point of intersection of the guide groove 30 with the guide groove 31 has a greater depth.
- the guide groove 34 is less deep at the crossing point with the guide groove 30 if the guide groove 31 is deeper at the adjacent crossing point between the guide grooves 30 and 31. If the cylinder 10 shown in FIG. 13 is rotated at a constant speed by 180 ° with each weft insertion, the edge thread 8 guided in the guide groove 30, the edge thread 9 guided in the guide groove 31 and the edge thread 35 guided in the guide groove 34 form one Edge binding as shown in FIG. 15. The delivery unit 13 stands still.
- FIGS. 13 and 14 show at a relatively large distance from one another, in practice they should be arranged relatively close to one another in the axial direction A of the cylinder 10.
- widenings are provided in the region of the crossing points for the less deep sections of the respective guide grooves 30, 31, 34, which correspond to the widenings of the embodiment according to FIG. 3.
- FIG. 16 shows a cylinder 10 with guide grooves 43, 44 for guiding one edge thread 8, 9 each, with which the same edge binding can be achieved as with the cylinder 10 of FIG. 9, which is provided with guide grooves 32, 33.
- the guide grooves 43, 44 In their axial end positions, the guide grooves 43, 44 have sections 45, 46, 47, 48 which extend over a larger circumferential angle, for example in the order of 60 °, in the circumferential direction of the cylinder 10. Because of these sections 45 to 48 running in the circumferential direction, the cylinder can be rotated through a corresponding circumferential angle without the edge threads 8, 9 leaving their axial end positions. This course is particularly advantageous in the case of an edge-forming device 7 for a rapier weaving machine, since the shed formed by the edge threads 8, 9 is kept completely open over a longer period of time, so that the rapiers mounted on a rapier tape can run safely through the shed.
- the guide grooves are provided with sections 45, 47 or 46, 48 running in the circumferential direction only in the area of one end, while an immediate axial deflection takes place in the area of the opposite end positions.
- Such an embodiment is suitable for rapier weaving machines in which the rapier belt is guided essentially in the region of the upper warp thread sheet or the lower warp thread sheet of a shed.
- the circumferential sections 45, 47 or 46, 48 are arranged in the region of the front end of the cylinder 10 in which a gripper band of a gripper is guided.
- the cylinder is provided with more than three guide grooves for guiding edge threads, which for example also intersect with one another several times.
- a cylinder 10 with a guide groove 14 according to FIG. 3 and with a guide groove 34 according to FIG cross with each other.
- the guide grooves 14 and 34 are expediently formed with a different depth at each crossing point, so that the edge threads are moved relative to one another in the radial direction C of the cylinder 10, and at the same time it is prevented that the edge threads accidentally move from one guide groove to another.
- the cylinder 10 can be driven so that it always rotates in the same direction of rotation. However, this is not mandatory if the sections of the guide grooves in the area of the crossing points have the suitable widenings that allow the cylinder to be rotated in both directions of rotation.
- a cylinder 10 according to the embodiment of FIGS. 1 to 6 can perform a predetermined number of revolutions in one direction, for example five revolutions, and then be rotated in the other direction by the same number of revolutions.
- a fixed delivery unit 13 can be used.
- the cylinder 10 does not have to rotate continuously. For example, it can be stopped over the period of one or more weft entries in a position in which an open shed is formed between the edge threads 8 and 9. If the cylinder 10 is rotated again after the weft entries have been made, there is an edge binding in which a plurality of weft threads are bound into the edge threads at the same time. However, the cylinder 10 is preferably rotated continuously so that each weft thread is bound in, since this results in stronger connections.
- the guide grooves can also deviate from the shapes explained in the illustrated exemplary embodiments and also have a different depth profile at the intersection points in order to achieve a desired edge formation.
- the guide grooves are preferably designed to be relatively narrow, since this results in precise guiding of the edge threads.
- narrow guide grooves are preferred, it is relatively difficult to achieve constrictions. The use of widenings is therefore preferred.
- a cylinder 10 with a small diameter should preferably be used.
- the edge threads are best guided in an edge forming device according to the invention if the slope of the guide grooves is not too great, so that cylinders 10 with a larger diameter are advantageous for this purpose.
- a cylinder 10 with a diameter of the order of 3 cm to 6 cm delivers good results.
- the guide grooves of a cylinder can also be designed such that the guide grooves run back and forth several times between the axial end positions over a circumferential angle of 360 °. 17 are two Guide grooves 49, 50 are provided, each of which runs over a circumferential angle of 90 ° between the two axial end positions, so that these guide grooves move the edge threads back and forth four times between the end positions during one revolution and cross four times accordingly. This has the consequence that the diameter of the cylinder 10 must be increased if the slope of the helical guide grooves 49,
- the cylinder 10 then only has to run at a lower speed.
- the cylinder 10 of FIG. 17 must be rotated half as fast as the cylinder 10 of the embodiment of FIG. 9 in order to obtain the same edge formation.
- the cylinder 10 and the guide grooves or guide grooves provided on it do not have to be designed such that the edge threads are shifted from one axial end position to the other axial end position after one revolution of the cylinder. This shift can also take place only after two or more revolutions of the cylinder 10, which must then be driven correspondingly quickly in order to form a shed for a weft insertion.
- the cylinder 10 has a guide groove
- the slot 51 intersects with itself at three points, namely at the intersection points F, G and H.
- the edge threads 8 and 9 only intersect at the intersection point H.
- the measures already described (different depth profile) must also be taken to simultaneously thread the edging threads in bring radially different positions.
- the cylinder 10 according to FIG. 18 has to be rotated twice as fast as the cylinder 10 according to FIG. 3.
- the guide grooves for a cylinder 10 for an edge forming device 7 do not necessarily have to consist of guide grooves.
- the cylinder 10 is provided with projections 53, which form guide grooves 54, 55 between the threads.
- elevations 56 are provided at the intersection of the guide grooves 54, 55 formed by the projections 53 in order to guide the intersecting edge threads at a different radial distance.
- an edge forming device 7 with a cylinder 10 according to FIG. 19 an edge binding according to FIG. 7 can be achieved analogously to the embodiment according to FIG. 9.
- the protrusions 53 and ridges 56 are shown hatched to make them clearly visible even though they are not cut.
- the cylinder 10 can be equipped with thread break detectors in the area of the guide grooves or guide grooves.
- a sensor 57 for example a piezoelectric sensor, is arranged in the region of the guide groove 14, which sensor always has a radio connection, for example supplies a signal to the control unit 38 when it is passed by an edge thread 8 or 9.
- two signals are forwarded to the control unit 38 per revolution of the cylinder 10. If only one signal or no signal at all is sent to the control unit 38 per revolution of the cylinder, this indicates a thread break.
- optical, mechanical or other sensors can be used to detect a broken thread. In this case, the signals via cable connections or the like. be forwarded to the control unit 38.
- switches or the like can also be used. be arranged, which are connected to the control unit 38 and by the actuation of which the cylinder 10 is moved into a specific position, for example in order to manually insert the edge threads 8, 9 into the guide grooves or guide grooves.
- the rotatable element consists of a tubular cylinder 10 which has a cylindrical jacket 15.
- the rotatable element can also be designed such that material is only present in the area of the guide grooves or guide grooves. This means that there is no need to have a cylinder 10 made of solid material.
- a guide element 58 can be provided in the area of the rotatable element 10, which holds the edge threads 8, 9 in the guide grooves or guide grooves of the rotatable element.
- a plurality of rotatable elements 10 are provided along the weaving machine, which accordingly cooperate with a plurality of pairs of edge threads in order to loop a pair of threads around each other and to form special edge bindings with inserted weft threads.
- the method according to the invention can also be used for twisting, ie a cylinder 10 according to one of the embodiments according to FIGS. 1 to 19 as a twisting device for a twisting machine.
- the twisting device must contain the rotatable element 10 with its drive, a delivery unit 13 and a thread winding device (not shown).
- the rotatable element can also be arranged horizontally or in another position.
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- Textile Engineering (AREA)
- Looms (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10516202A JP2001501263A (ja) | 1996-09-30 | 1997-09-24 | 走行する少なくとも2本の糸を互いに撚る方法と撚糸装置 |
US09/269,191 US6227253B1 (en) | 1996-09-30 | 1997-09-24 | Method and device for twisting at least two running for a loom selvage forming device |
DE59705583T DE59705583D1 (de) | 1996-09-30 | 1997-09-24 | Verfahren und vorrichtung zum umeinanderschlingen von wenigstens zwei laufenden fäden |
EP97910342A EP0929706B1 (de) | 1996-09-30 | 1997-09-24 | Verfahren und vorrichtung zum umeinanderschlingen von wenigstens zwei laufenden fäden |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9600823 | 1996-09-30 | ||
BE9600823A BE1010658A3 (nl) | 1996-09-30 | 1996-09-30 | Inrichting en werkwijze om minstens twee draden rond elkaar te bewegen. |
Publications (1)
Publication Number | Publication Date |
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WO1998014651A1 true WO1998014651A1 (de) | 1998-04-09 |
Family
ID=3890007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP1997/005232 WO1998014651A1 (de) | 1996-09-30 | 1997-09-24 | Verfahren und vorrichtung zum umeinanderschlingen von wenigstens zwei laufenden fäden |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0929706B1 (de) |
JP (1) | JP2001501263A (de) |
KR (1) | KR20000048729A (de) |
CN (1) | CN1078637C (de) |
BE (1) | BE1010658A3 (de) |
DE (1) | DE59705583D1 (de) |
WO (1) | WO1998014651A1 (de) |
Families Citing this family (3)
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CN108570739B (zh) * | 2018-04-18 | 2020-03-31 | 江苏工程职业技术学院 | 一种可变螺距的组合式螺旋式开口装置及其织造方法 |
KR20240005311A (ko) | 2022-07-05 | 2024-01-12 | 주식회사 정연 | 연사 장치 |
CN117885403A (zh) * | 2024-03-15 | 2024-04-16 | 福建省佳盛纵横织造有限公司 | 保暖复合针织面料的制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB819583A (en) * | 1955-02-08 | 1959-09-09 | Barmag Barmer Maschf | Apparatus for winding several threads on to one bobbin |
FR2095367A1 (de) * | 1970-06-19 | 1972-02-11 | Strake Maschf | |
US3880199A (en) * | 1973-05-14 | 1975-04-29 | Zbrojovka Vsetin Np | Device for reinforcing the edge of a fabric |
DE4237860A1 (de) * | 1992-11-10 | 1994-05-11 | Schlafhorst & Co W | Fadenführungstrommel |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3883199A (en) * | 1972-07-25 | 1975-05-13 | Knoll International | File drawer interlocking and locking mechanism |
-
1996
- 1996-09-30 BE BE9600823A patent/BE1010658A3/nl not_active IP Right Cessation
-
1997
- 1997-09-24 EP EP97910342A patent/EP0929706B1/de not_active Expired - Lifetime
- 1997-09-24 WO PCT/EP1997/005232 patent/WO1998014651A1/de active IP Right Grant
- 1997-09-24 CN CN97198363A patent/CN1078637C/zh not_active Expired - Fee Related
- 1997-09-24 DE DE59705583T patent/DE59705583D1/de not_active Expired - Fee Related
- 1997-09-24 KR KR1019990702703A patent/KR20000048729A/ko active IP Right Grant
- 1997-09-24 JP JP10516202A patent/JP2001501263A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB819583A (en) * | 1955-02-08 | 1959-09-09 | Barmag Barmer Maschf | Apparatus for winding several threads on to one bobbin |
FR2095367A1 (de) * | 1970-06-19 | 1972-02-11 | Strake Maschf | |
US3880199A (en) * | 1973-05-14 | 1975-04-29 | Zbrojovka Vsetin Np | Device for reinforcing the edge of a fabric |
DE4237860A1 (de) * | 1992-11-10 | 1994-05-11 | Schlafhorst & Co W | Fadenführungstrommel |
Also Published As
Publication number | Publication date |
---|---|
CN1231708A (zh) | 1999-10-13 |
KR20000048729A (ko) | 2000-07-25 |
JP2001501263A (ja) | 2001-01-30 |
EP0929706B1 (de) | 2001-11-28 |
DE59705583D1 (de) | 2002-01-10 |
BE1010658A3 (nl) | 1998-11-03 |
CN1078637C (zh) | 2002-01-30 |
EP0929706A1 (de) | 1999-07-21 |
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