JP5039046B2 - Yarn coupling device - Google Patents

Description

  The present invention relates to a yarn joining device for joining two yarn ends to each other so as not to cause knots (knots or knots), that is, to join them together by twisting, and to the yarn ends to be joined. In particular, the present invention relates to a type having at least two friction discs that can rotate relative to each other in order to apply a mechanical load (load or frictional force).

  In order to splice two yarn ends by, for example, aerodynamic force (splicing), in particular, a yarn coupling device used in a twill winding package automatic winding device, that is, an aerodynamic (or pneumatic) yarn twisting device, It is formed with various structures. In known yarn joining devices, the yarn ends to be joined are preferably prepared prior to the original piecing process, i.e. the yarn ends are at least partially untwisted. In this case, the preparation of the yarn end for the piecing process is carried out pneumatically using a so-called yarn end loosening tube piece, or mechanically, for example, two friction disks that can be rotated in opposite directions. Is to be done by.

  In the yarn twisting device described in German Patent Application Publication No. 4420979A1, the yarn end loosening tube piece is placed at a distance from the twisting groove disposed in the twisting mechanism (twisting member). The yarn end is sucked into the yarn end loosening tube piece before the original twisting process, and the air flow opposite to the yarn twist at the yarn end is sucked into the yarn end. The yarn twist at the yarn end is released, that is, twisted back by aerodynamically.

  A yarn twisting device in which the preparation of the yarn end is carried out by two friction discs (friction discs) which can be driven in opposite directions is known, for example, from DE 3029452 C2. is there. In the yarn twisting device, a twisting mechanism is disposed between the friction disks, and the twisting mechanism mechanically couples (joins) both ends prepared (processed) by the friction disk. ).

  EP 1 324 428 A1 also describes a similar yarn twisting device, in which the pneumatically loadable twisting mechanism is provided in the region of the twisting groove. And has an additional hole next to the normal twisted air hole, and the additional hole is loaded with a negative pressure, i.e., can generate a negative pressure, in the twisted passage. Used to fix the yarn end of In the yarn twisting device described in EP 1 324 428 A1, the preparation of the yarn end is selectively carried out aerodynamically by means of a yarn end unwinding tube piece or rotated in opposite directions. This is done mechanically by two possible friction discs.

  German Patent Application Publication No. 3029452C2 and European Patent Application Publication No. 1302428A1 describe that a friction disk is fixed in a yarn twisting device. In other words, it is disclosed or suggested that the friction disk, which is a wear part, be formed as a component that can be attached to the yarn twisting device, or that the friction disk be replaceably incorporated in the yarn twisting device. It has not been.

  Furthermore, in the yarn joining device described in EP-A-0140412B1, both yarn ends are loaded by two friction discs that can be driven in opposite directions and twisted together. . The friction disk of the known yarn coupling device is supported on a receiving component (receiving element) of the yarn coupling device so as to be rotatable and tiltable within a predetermined limit. That is, each friction disk is supported by the associated rotating part via a plurality of coil springs, and each rotating part itself is disposed in the bearing casing of the yarn coupling device. The operator cannot access the friction disk, that is, cannot access it, that is, the friction disk can be directly grasped by hand when the yarn coupling device is assembled in the working portion of the winder, for example, the automatic winding device of the traverse package. Therefore, in order to replace the friction disk, first, the yarn coupling device must be removed from the automatic winding device for traversing and partially disassembled. This means that in the known yarn coupling device, it takes time to replace the friction disk, the replacement work is complicated, and a specialist is required.

  The object of the present invention is to start from the above-mentioned known technology and to improve the yarn coupling device with a friction disk so that the friction disk can be replaced without problems, that is to say easily.

  In order to solve the above-mentioned problems, according to the present invention, the friction disk of the yarn coupling device is easily accessible and can be attached to or removed from the receiving ring of the yarn coupling device without using a tool. This makes it possible to replace the friction disk exposed to friction or wear even in the assembled state of the yarn binding device, i.e. without having to remove the yarn binding device from the spinning machine or textile machine beforehand. As a particular advantage, no special knowledge or special tools are required for the installation or removal of friction discs, ie wear parts. This means that the worn friction disk is taken out by a normal operator (operator) of the spinning machine in a short time without any problem and replaced with a new friction disk.

In the configuration of the present invention , the friction disk is fixed (fixed) to the receiving ring so as to be able to transmit force to the receiving ring by the permanent magnet piece, so that the permanent magnet piece (permanent magnet insert piece) is a friction disk. It is arranged in opposition to a bearing ring made of a ferromagnetic material, for example steel, i.e., in alignment with the bearing ring, and cooperates with the bearing ring.

Furthermore, in the configuration of the present invention , each receiving ring engages in a notch provided in the bearing ring of the friction disk, that is, at least one friction disk entraining member fitted (entered) into the notch, secured within a hole provided in the receiving ring comprises at least one permanent magnet piece is (fixed), thus formed receiving ring, said receiving ring itself thread binding device (yarn splicing device) in The friction disk can be fixed to the receiving ring by fitting coupling (shape coupling) and based on magnetic force. In this case, the above-mentioned fitting coupling ensures the reliable transmission of torque (rotational moment) from the receiving ring to the friction disk, and the friction disk is securely fixed during operation by the magnetic coupling (magnetic coupling). On the other hand, it is removed from the assembly position of the friction disk, that is, from the receiving ring as necessary.

In an advantageous embodiment as claimed in claim 2 , each receiving ring is engaged (fitted) in a notch provided on one diameter line of the receiving ring and provided in the bearing ring of the friction disk. Two friction disk entraining members (friction disk entraining components), as well as on the diameter line of the receiving ring, in a particularly advantageous embodiment on another diameter line and provided on the receiving ring It is provided with two permanent magnet pieces (permanent magnet insert pieces) which are received in, ie, fitted or embedded in, two holes. The aforementioned coupling of the entraining member into a suitably arranged notch in the bearing ring of a friction disk molded (manufactured) from ferromagnetic material achieves a uniform distribution of force during torque transmission during operation. As well as ensuring that the friction disk is evenly fixed or locked to the receiving ring.

In an embodiment as claimed in claim 3 , the friction disk has a bearing ring molded from a ferromagnetic material, and preferably a friction lining which is molded from plastic and is fixed or fixed inseparably to the bearing ring. is doing. This makes it possible for the bearing ring formed from a ferromagnetic material, preferably steel, to allow a separable fastening of the friction disk to the receiving ring in a simple manner as required. The plastic material of the friction lining ensures that the yarn end yarn or fiber twist is reliably released by friction discs driven in opposite directions. This means that the plastic material of the friction lining is rotated around the longitudinal axis (vertical axis) of the yarn end, with the yarn end being entrained by the friction disc upon rotation of the friction disc. Yes. In this way, the yarn end is untwisted (unwound or loosened) or newly twisted according to the direction of rotation of the friction disk.

In an embodiment as claimed in claims 4 and 5 , the friction lining is fixed to the bearing ring by means of an adhesive bond or a vulcanized bond (bonded by vulcanization). Both such coupling means (fixing means) guarantee a long and reliable coupling between the friction lining and the bearing ring.

The invention will now be described on the basis of the illustrated embodiment. In the drawing
FIG. 1 is a side view of one working part (working part or winding part) of a twill-winding package automatic winding device provided with a yarn binding device according to the present invention;
FIG. 2 is a schematic perspective view of the yarn coupling device of FIG.
3 is an exploded perspective view of the yarn coupling device of FIG.
FIG. 4 is an exploded perspective view of the receiving ring and the friction disk;
FIG. 5 is a perspective view of the receiving ring and the friction disk in an assembled state.

  FIG. 1 shows a spinning machine for winding a traverse package, in an embodiment, an automatic winding device for a traverse package as viewed from the end face side of the apparatus. The automatic winding device for a traverse package has a plurality of identical work parts 2 between both end frames (not shown), and the work parts are produced by, for example, a ring spinning machine as is well known. The spinning cup 9 is wound (wound up) around a large volume twill package 15. The traverse package 15 is transported in the longitudinal direction of the machine longitudinal direction using an automatic operation device (service device), preferably an unillustrated traverse package exchanging device after the end of winding (end of winding). It is handed over to the device 21 and transported to a package storage part or a similar part arranged on the machine end side.

  The traverse package automatic winding device 1 generally has a computer-controlled cup and tube transfer device 3, and a spinning cup 9 or an empty tube is vertically placed on a transfer plate 8 by the cup and tube transfer device. It is designed to be circulated on the board. FIG. 1 shows a cup feeding section 4, a reversible drivable storage section 5, a lateral transport section 6 extending toward the work site 2, and a pipe return section 7 of the cup and pipe transport device 3. is there.

  The traverse package automatic winding device 1 further generally has a central control unit (not shown), and the central control unit is a work part of an individual work site 2 via a machine side connection part (machine side bus). It is connected to the operation computer 29 and the controller of the traverse package changer.

  As already described above, the supplied spinning cup (spindle-shaped winding yarn) 9 has a large volume at the feeding position AS in the winding part 2 in the region of the transverse conveyance section (lateral conveyance conveyor) 6. It is designed to be rewound into a twill roll package. For this purpose, each winding part (working part) is provided with various devices as is well known, and these devices are designed to ensure the normal operation of the working part. The various devices are, for example, capable of swiveling limitedly around the swivel shaft 13 and capable of rotating about the suction nozzle 12 for processing the upper thread 31 and the swivel axis 20 and processing the lower thread 32. And the thread coupling device 10.

  As shown in FIG. 1, the yarn joining device 10 formed as an aerodynamic yarn twisting device is advantageously slightly retracted from the normal yarn path, in particular as shown in FIG. A pneumatic splicing mechanism 11 for joining the two yarn ends 31, 32, and friction disks 16, 17 for mechanical processing or processing of the yarn ends 31, 32. The twist-joining mechanism 11 is supported at the center of the yarn coupling device so as to be movable in the axial direction.

  The work site 2 generally further includes various devices (not shown) such as a yarn tension device, a yarn cleaner, a paraffin processing device, a yarn cutting device, a yarn tension sensor, a lower yarn sensor, and the like.

  Winding of the winding package 15 is performed by a winder 24. The winder 24 has a package frame 28. The package frame is supported so as to be pivotable about a pivot shaft 22, and includes a device for rotatably holding the package tube. During the winding process, the winding package 15 supported (held) in the package frame 28 so as to be freely rotatable is in contact with the package driving drum 14 on the surface of the package, and the package driving drum 15 14 is entrained on the basis of friction, that is, rotated.

  A yarn coupling device (yarn twisting device) 10 according to the present invention is shown in detail in FIGS. FIG. 2 is a perspective view of the yarn coupling device 10 as viewed from the front side, and FIG. 3 is an exploded perspective view of the yarn coupling device 10.

  As shown in FIG. 3, a plurality of receiving rings 19 that can be rotationally driven by a drive unit (not shown) are arranged in the casing 36 of the yarn coupling device 10. In addition, a hole 27 for receiving the permanent magnet piece 26 is provided. In the receiving ring 19, as shown in detail in FIGS. 4 and 5, the friction discs 16, 17 are arranged in such a way that they are well accessible (accessible) and easily exchangeable. In the central region of the friction disks 16 and 17 formed in a ring shape, an aerodynamic twist joint mechanism 11 that can be loaded by pneumatic force is supported so as to be movable in the axial direction. The twist joint mechanism is twisted. A joint groove 35 is provided.

  As shown in FIGS. 4 and 5, each receiving ring 19 is advantageously provided with two friction disk entrainers 23A, 23B arranged on one diameter line of the receiving ring, and also on one diameter line. It has two holes 27 arranged. A permanent magnet piece 26A is fixed in the hole 27, and the permanent magnet piece (permanent magnet insert) is aligned with the bearing ring 30 of the friction disks 16 and 17, and cooperates with the bearing ring. The garment bearing ring is sucked. For this purpose, the bearing ring 30 of the friction disks 16, 17 is made of a ferromagnetic material, preferably steel, and has notches 34A, 34B, which are notches (recessed parts). As shown in FIG. 5, in the assembled state, the friction disk entrainment bodies 23A and 23B of the receiving ring 19 are received. That is, the friction disk entrainment body (friction disk entraining member) of the receiving ring is It engages (fits), that is, enters into the notches 34A and 34B of the support ring 30. A friction lining 33 is secured to each bearing ring 30 by, for example, vulcanization or adhesion, which is preferably made from plastic. In this case, the material of the friction lining 33 twists back the yarn end portions 31 and 32 according to the rotation direction of the friction discs 16 and 17 when the friction discs 16 and 17 come into contact with the yarn end portions 31 and 32. Alternatively, the yarn ends 31 and 32 are selected so that a new twist can be generated.

  If the operator of the spinning machine comes to confirm that, for example, the twisted joint (twisted joint) of the working part 2 is no longer suitable for the desired quality requirements, this is There will be inadequate preparation. That is, the friction disks 16 and 17 of the yarn joining device 10 at the work site 2 where the quality of the twisted joint portion has deteriorated are worn or dirty, and must be replaced or cleaned.

  In order to replace the friction disks 16, 17, the easily accessible bearing ring 30, together with the friction lining 33, is separated from the receiving ring 19 against the magnetic force of the permanent magnet pieces 26A, 26B, and then a new friction disk. 16 and 17 are easily attached to the receiving ring 19 from the front side and exchanged. In this case, the friction disk can be quickly replaced without any problem without requiring a special tool or special knowledge for the operator in a state where the yarn coupling device 10 is assembled.

  The present invention is not limited to the illustrated embodiment. It is also possible to change the configuration of the receiving ring 19 and the configuration of the friction disks 16, 17 within the scope of the present invention. The friction disk need not necessarily consist of, for example, a bearing ring and a plastic friction lining secured in the bearing ring, and the friction disk can be molded directly from one or more plastics. In this case, a steel insert is embedded in the plastic.

  The friction disks 16 and 17 are fixed to the receiving ring 19 of the yarn coupling device 10 by various means. That is, the friction disks 16 and 17 are magnetically fixed to the receiving ring 19 of the yarn coupling device 10 ( It is not essential to fix. It is also possible to use a snap coupling part or a clip coupling part instead of the magnetic coupling part.

  It is also possible to attach the friction disk to the receiving ring of the coupling device by means of a spring ring. In this case, the spring ring must be formed so that it can be worn by hand. Another means for easily approaching the friction disk, removing the friction disk from the receiving ring of the thread coupling device without a tool and attaching a new friction disk is to use a so-called carbine lock. The carbine lock is manually opened and closed without any problem as is well known.

  Furthermore, the shape of the bearing ring of the friction lining and the shape of the receiving ring are formed complementary to each other, and the bearing ring is fitted to the receiving ring and rotated relatively, that is, the bearing ring is made into the receiving ring. It is also possible to fix (lock) based on fitting coupling (shape coupling).

  The technical idea of the present invention is that the friction disk is easily accessible (accessible) even in the assembled state of the yarn coupling device, and is attached to or removed from the receiving ring without using a tool. This makes it possible for a worker without special expertise to change the friction disk without using a tool.

Side view of a working part of a twill-winding package automatic winding device provided with a yarn binding device according to the present invention 1 is a schematic perspective view of the yarn coupling device of FIG. 2 is an exploded perspective view of the yarn coupling device of FIG. Exploded perspective view of receiving ring and friction disc A perspective view of the receiving ring and the friction disk in an assembled state

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Twill winding package automatic winding device, 2 Working part, 3 Cup and pipe conveyance device, 4 Cup feeding division, 5 Storage division, 6 Lateral conveyance division, 7 Pipe return division, 8 Conveying tray, 9 Fine spinning cup, 10 Yarn coupling device, 11 twisted prism, 12 suction nozzle, 13 swivel shaft, 14 package drive drum, 15 traverse package, 16, 17 friction disc, 19 receiving ring, 20 swivel shaft, 21 traverse package transport device, 22 swivel Shaft, 23 Friction disk entrainment body (23A, 23B), 24 Winder, 25 Grab tube piece, 26 Permanent magnet piece, 27 hole, 28 Package frame, 29 Working part operation computer, 30 Bearing ring, 31 Upper thread, 32 Lower thread 33 Friction lining, 34A, 34B cut Notch, 35 twisted groove, 36 casing

Claims (5)

A yarn joining device for joining two yarn ends together by piecing, at least two frictions rotatable relative to each other to provide a mechanical load on said yarn ends to be joined In the type having a disk, the friction disk (16, 17) is arranged so that the friction disk (16, 17) can be replaced even when the thread coupling apparatus (10) is assembled. without the use of readily do one Engineering tools accessible to (10) of the receiving ring (19) being adapted to be removed from the loaded or the receiving ring to said receiving ring, said friction disc (16 , 17) is fixed to the receiving ring (19) by a permanent magnet piece (26) so that force can be transmitted, and each receiving ring (19) is supported by the friction disk (16, 17). At least one friction disk entrainment member (23) engaged in a notch (34) provided in the ring (30) and fixed in a hole (27) provided in the receiving ring (19) Yarn coupling device, characterized in that it comprises at least one permanent magnet piece (26) . Each receiving ring (19) is arranged on the diameter line of the receiving ring (19) and engages in a notch (34) provided in the bearing ring (30) of the friction disk (16, 17). Two friction disk entraining members (23) and two permanent members disposed on the diameter line of the receiving ring (19) and embedded in two holes (27) provided in the receiving ring (19) The yarn coupling device according to claim 1 , comprising a magnet piece (26). The friction disk (16, 17) has a bearing ring (30) molded from a ferromagnetic material and a friction lining (33) molded from plastic, which friction lining is said bearing ring (30). The yarn coupling device according to claim 1 or 2 , wherein the yarn coupling device is fixed to the belt inseparably. 4. The yarn coupling device according to claim 3 , wherein the friction lining (33) is secured to the bearing ring (30) with an adhesive. 4. The yarn coupling device according to claim 3 , wherein the friction lining (33) is fixed to the bearing ring (30) by vulcanization.

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