JP2020045249A - Wound pipe storage device for package frame of winding device - Google Patents

Abstract

To provide a wound pipe storage device capable of compensating a centering of the wound pipe by a clamp of the wound pipe and of transmitting a torque.SOLUTION: A wound pipe storage device 7 for a package frame of a winding device is provided with a conical wound pipe storage element 23, a holding element 24, and a spring element 25. The wound pipe storage element 23 is non-rotatably coupled to the holding element 24 via the spring element 25 and the spring element 25 is formed as a spring ring. The spring ring 25 is formed from a central opening and a spring metal thin plate having at least four fixation holes arranged concentrically relative to the central opening or consists of at least four spring metal thin plate element arranged in a ring shape and this time each spring metal thin plate element is movably coupled each other by a hollow pin 28 at its facing end each other respectively.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a winding tube accommodating device for a package frame of a winding device, and a package frame including such a winding tube accommodating device.

  Such a tube receiving device is used for holding a tube in a textile machine of various construction types, for example, a winding device of a final spinning machine or a winder. A winding tube is held between the two winding tube housings, and these winding tubes are rotated via a drive and take up the yarn. Various types of winding tubes are used, which are made of various materials such as, for example, plastic or paper and have a cylindrical or conical shape. The winding tube may be formed with a side flange or may be formed without a side flange. The yarn is reciprocated along the longitudinal axis of the winding tube using a traversing device during winding, thereby forming various types of windings in structure and shape. The winding tube is driven directly via a motor for rotating at least one of the winding tube housings, or indirectly via a friction roller arranged parallel to the winding tube. Done in The friction roller may then be formed as a so-called grooved drum. The grooved drum is provided with a yarn guide, which is guided in a slit such that the yarn is reciprocated by the rotation of the grooved drum. When the winding tube is directly driven, the traversing of the yarn can be performed by a separate traversing unit and the support of the winding tube via a support roller. At this time, the yarn is clamped between the supporting roller and the winding tube or between the yarn already existing in the winding tube, and is thereby wound up on the winding tube.

  The winding tube is clamped between two winding tube receiving devices located opposite one another. Each of the winding tube accommodating devices is rotatably fixed to a holding arm, and the holding arm is fixed to a common swing arm. Through the winding process, the diameter of the yarn wound on the winding tube continuously increases. As a result, the distance between the support roller and the longitudinal axis of the winding tube is increased, which is compensated by the movement of the holding arm about the pivot axis of the pivot arm. At the end of the winding process, the tube receiving devices are moved away from one another in the direction of the longitudinal axis of the tube, so that the package can be removed and an empty tube can be inserted. At this time, one or both winding tubes can be moved, which can take place in a straight line or in the form of a swiveling movement. Based on the prior art, hand-operated or motorized arrangements for moving the tube holder and the holding arm are known.

  The requirements for the rotation of the winding tube, and thus the uniform contact of the winding tube on the support rollers or friction rollers, are constantly increasing in order to obtain good package quality, due to the increased productivity and variety of yarns to be treated. ing. The rotation of the winding tube is influenced on the one hand by errors in the construction of the winding device and on the other hand by the geometry of the winding tube itself. The winding tube is used many times, which results in the winding tube having a trace of use in addition to errors in the manufacture, whereby the unwinding of the winding tube rigidity between the winding tube housings takes place. The balance may increase. 2. Description of the Related Art Winding tube receiving devices are known which attempt to achieve flexible tightening of the winding tube by material selection or a combination of various materials. Further, as disclosed in, for example, International Publication No. 2008/128590 (WO 2008/128590 A1), a winding tube housing device provided with a ball joint has been proposed.

  Another configuration of the tube receiving device is known from U.S. Pat. No. 4,328,928 A (US Pat. No. 4,289,828 A), in which a brake is incorporated into the tube receiving device, with the axial direction then being increased. A shiftable member is provided. With the winding tube housing disclosed in EP 0350786 A1, it is attempted to compensate for the centering error that occurs when the winding tube is tightened by means of an axially movable centering core in the centering disc. . Japanese Utility Model Application Laid-Open No. 5414034 (JPS 5414034 U) also discloses a centering core that is energized by an axially posterior spring in order to flexibly hold the winding tube between the winding tube housings. I have.

  A disadvantage of the known configuration of the tube receiving device is that a satisfactory rotation of the tube is achieved only by contacting the support rollers with great force, based on a flexible tube receiving device. . With the pivotal arrangement of the tube receiving device, it is not possible to drive the tube directly via the tube receiving device.

  The object of the present invention is thus achieved by centering the winding tube by clamping the winding tube between the winding tube accommodation devices, compensating for errors and inaccuracies of the winding tube, wherein the winding tube accommodation device based on the clamp is then used. To achieve a non-rotatable connection of the winding tube with the winding tube, thereby enabling transmission of torque.

  This problem is solved by a device having the features of the independent claims.

  A tube housing for a package frame of a winding device is proposed, wherein the tube housing is provided with a conical tube housing element, a holding element and a spring element. The winding tube receiving element is non-rotatably connected to the holding element via a spring element, and the spring element is formed as a spring ring. The non-rotatable connection of the tube receiving element with the holding element allows the transmission of torque from the holding element via the spring element to the tube receiving element. This makes it possible to directly drive the winding tube held by the winding tube housing device. Instead of an indirect drive with a friction roller, which transmits the driving force via friction between the friction roller and the yarn already wound on the tube, it is possible to use a direct drive of the tube. Yes, this direct drive has the advantage of gently winding the yarn.

  By spring ring is meant a spring of the ring-shaped construction type, where ring-shaped means that the spring ring has an outer periphery and a central opening. At this time, the outer peripheral portion and the central opening do not necessarily have to be circular.In the description of the present application, for example, a configuration including a polygonal outer peripheral portion and a square opening may be used. , Can be understood as a spring ring. Similarly, the elastic or damping action of the spring ring can also be enhanced or deviated in a defined direction by shaping the slit or ridge. Also possible are material combinations such as, for example, steel and plastic, or cross-sectional shapes embossed in different forms. Various shapes and configurations of spring rings are known in the prior art that can be used here. The spring rings used at this time provide in any case the stability that can transmit the torque for driving the winding tube.

  According to the invention, the spring ring is formed from a spring metal sheet with a central opening and at least four fixing holes arranged concentrically with respect to the central opening. The use of a spring sheet metal is suitable for transmitting the required torque, and at the same time the flexibility or spring action required in this drive is suitable for compensating for inaccuracies in the tube clamp. It turns out that. The spring action required at this time depends on the part of the spring ring used between the fixing part in the fixing hole of the spring ring in the winding tube receiving element and the fixing part in the fixing hole of the spring ring in the holding element. Must be brought. Due to the central opening in the spring sheet metal, the spring action of the spring element is increased in the region between the fixing holes. Alternatively, it is also possible to provide a slit, a plurality of openings, or other means of changing the cross section. Preferably, three fixing holes are respectively provided in the spring ring for fixing the tube receiving element and for fixing the holding element. Based on the fixing holes required for the fixing, it has been found that a hexagonal periphery and a circular central opening are suitable as shaping for the spring ring.

  In an alternative embodiment, the spring ring consists of at least four spring sheet metal elements arranged in a ring, the individual spring sheet metal elements being hollow at their respective opposite ends. They are movably connected to each other by pins. In this configuration, the hollow pin not only guarantees the formation of a ring of individual spring sheet metal elements, but also provides the necessary fixing holes for fixing the tube receiving element and the holding element. Particularly preferably, the spring ring consists of six spring sheet metal elements arranged in a ring, the individual spring sheet metal elements being movable with respect to one another at their respective opposite ends by hollow pins. Are combined. Of the six hollow pins required to connect the individual spring sheet metal elements, three hollow pins each can be used to secure the tube receiving element and the holding element.

  More preferably, the spring metal sheet or the spring metal sheet element is formed as a spring set of a plurality of individual metal sheets. This advantage applies to each of the above-described types of construction of the spring ring. If the spring metal sheet or the spring metal sheet element is designed as a spring set, this means, on the one hand, that the spring action can be accurately determined and, on the other hand, the individual metal elements within one spring set. There is the advantage that the overall spring action is not lost in the event of a malfunction of the sheet.

  In a preferred configuration, the tube receiving element is screw-connected to the spring element and the holding element is connected to the spring element from the side opposite the spring element. This embodiment of the spring element mounted between the tube receiving element and the holding element is preferred because of its simple and space-saving construction. However, other embodiments are also conceivable in which, for example, the spring element is used as a coupling element or the holding element surrounds the spring element, so that the tube receiving element and the holding element The elements are connected to the spring element from the same side.

  In a further embodiment proposed, a connection with a screw is provided, the screw being engaged in a contactless manner through the holding element for connecting the tube receiving element to the spring element. And each engaging with one internal thread on the tube receiving element, and the screw is engaged through the tube receiving element in a contactless manner to connect the retaining element to the spring element. In engagement with one female thread on each of the retaining elements. In this configuration, the spring element can be inserted into the inner space of the tube receiving element and the holding element by a corresponding configuration of the inner space. This has the advantage of reducing the occurrence of contamination of the spring system. This also offers the possibility of retrofitting older machines on the basis of the overall low structural height of the tube receiving device. Since the structural height of the tube accommodating device can be arbitrarily adapted to the existing device, there is no need to modify the existing winding machine when using the tube accommodating device according to the present invention.

  As an alternative to the arrangement described above for the connection, the hollow pin can have internal threads. This allows the use of screws which do not need to be guided through the members which are located oppositely. The tube receiving element and the holding element can be screwed directly to the spring element by the internal thread of the hollow pin.

  Furthermore, a package frame with two holding arms arranged in parallel has been proposed, wherein the first holding arm is provided with a first winding tube accommodation device and the second holding arm is provided with a second holding arm. A second winding tube receiving device is provided which is oriented in the opposite direction to the first winding tube receiving device. At least one of the tube receiving devices is formed as described above, and the holding element of the at least one tube receiving device is rotatably fixed to the holding arm. . Such an arrangement of the package frame preferably allows the mounting of a direct drive for the package frame, whereby the second tube receiving device is connected to the drive. Preferably, the first tube receiving device is arranged so as to be shiftable in its longitudinal axis. Due to the axially shiftable arrangement of the winding tube housing device, the winding tube housing device can shift its axial position when a full package is obtained, and the full tube package can be wound. It can be removed from the storage device and a new empty tube inserted.

  Furthermore, a winding device for winding a yarn on a winding tube, provided with a package frame as described above, is proposed.

  Other advantages of the present invention are described in the following embodiments.

FIG. 3 is a plan view schematically illustrating a package frame according to the related art. FIG. 2 is a side view schematically illustrating the package frame illustrated in FIG. 1. It is a figure showing roughly one embodiment of a winding tube accommodation device concerning the present invention. 1 schematically shows an embodiment of the spring element according to the invention. FIG. 4 schematically shows another embodiment of the spring element according to the invention. FIG. 6 is a sectional view schematically showing a section taken along a line XX in FIG. 5.

  FIG. 1 schematically shows a prior art package frame 1 in a plan view, and FIG. 2 schematically shows a prior art package frame 1 in a side view. The package frame 1 includes a swing arm 4 having a swing axis 5, a first holding arm 2 and a second holding arm 3. The holding arms 2, 3 are located opposite each other and are non-rotatably fixed to the respective ends of the pivot arm 4. As a result, the holding arms 2, 3 are pivoted about the pivot axis 5 together with the pivot arm 4 by the pivoting movement 38 of the pivot arm 4. The pivot arm 4 is held on a machine frame 22 via a corresponding support 20. Furthermore, the holding arms 2 and 3 are rotatably attached to the ends of the holding arms 2 and 3 via bearing pins 11 and 12 so that the winding tube housing devices 6 and 7 are positioned to face each other. Have been. At this time, the first bearing pin 11 provided with the first tube receiving device 6 and the second bearing pin 12 provided with the second tube receiving device 7 are arranged on a common longitudinal axis 8. ing. The winding tube 9 is clamped between the winding tube accommodation devices 6 and 7. One of the winding tube receiving devices 6, 7 such as the winding tube receiving device 6, or the bearing pin 11 of this winding tube receiving device 6, is disposed in the holding arm 2 in the direction of the longitudinal axis 8. It is held so that it can be shifted. As a result, the winding tube 9 can be inserted between the winding tube housings 6, 7 and then the winding tube housing device 6 can be pressed against the winding tube housing device 7, thus clamping the winding tube 9. In the embodiment shown, the tube receiving device 7 is connected to the drive wheel 13 at the longitudinal axis. The drive wheel 13 is rotated by a drive element 14, for example, a chain drive, whereby the winding tube 9 is rotated by coupling with the winding tube housing 7.

  A support roller 10 is arranged parallel to the longitudinal axis 8 of the winding tube 9, on which the winding tube 9 is driven by a swivel movement 38 of the swivel arm 4 about the swivel axis 5. Contact. The support roller 10 is rotatably fixed to the machine frame 22 by a corresponding holder 21. Due to the rotation of the winding tube 9 in the corresponding rotation direction 19, the yarn 17 set on the winding tube 9 is wound around the winding tube 9 and a package 18 is formed. During this winding process, the yarn 17 is reciprocated along the longitudinal axis 8 of the winding tube 9 by the traverse device 15. Due to this direction of movement 16 of the traversing device 15, different types of windings or packages 18 can be formed in the winding tube 9. Due to the formation of the wound body in the winding tube 9, the diameter of the package 18 increases, so that the package frame 1 is pivoted from the support roller 10 about the pivot axis 5 based on the contact at the support roller 10. During the winding process, the yarn 17 is clamped between the winding tube 9 or the yarn 17 already wound on the winding tube 9 and the support roller 10, so that the wound body in close contact with the winding tube 9 It is formed.

  FIG. 3 is a schematic diagram showing one embodiment of the winding tube housing device 7 according to the present invention. The tube accommodating device 7 is fixed to the holding arm 3 via a bearing pin 12. The bearing pin 12 is rotatably held on the holding arm 3 about the longitudinal axis 8, and at this time, the tube accommodating device 7 is non-rotatably attached to the bearing pin 12. The tube receiving device 7 is formed from a tube receiving element 23, a holding element 24 and a spring element 25. The tube receiving element 23 has a female thread 26 for fixing the spring element 25. Screws 30 are provided for fixing the tube receiving element 23 to the spring element 25, these screws 30 extend through the through-opening 29 in the holding element 24 in a contactless manner and The female element 26 of the receiving element 23 is screwed. In order to fix the holding element 24 to the spring element 25, screws 32 are provided which extend in a contactless manner through the through-opening 27 in the tube receiving element 23 and The female thread 31 of the element 24 is screwed. The spring element 25 is configured in the illustrated embodiment like the embodiment illustrated in FIG. 5 and has a fixing hole in the form of a hollow pin 28. The screws 30, 32 are guided through a hollow pin 28 in order to fix the tube receiving element 23 and the holding element 24 to the spring element 25.

  FIG. 4 shows a schematic illustration of one embodiment of a spring element 25 according to the invention. The spring element 25 is formed in a ring shape from a spring metal sheet 33. The spring metal sheet 33 has a hexagonal shape with rounded corners and has a central circular opening 34. For fixing in the tube receiving device 7 (see FIG. 3), there are provided six fixing holes 35 which are arranged concentrically and are evenly distributed over the circumference, with three fixing holes 35 each being provided. Are used to secure the spring element 25 to the tube receiving element 23 and to the holding element 24.

  FIG. 5 shows another embodiment of the spring element 25 according to the invention in a schematic view, and FIG. 6 shows a schematic sectional view at the location XX shown in FIG. Indicated by The spring element 25 consists of six vertically elongated spring metal sheet elements 36, 37 arranged in a hexagon. The spring sheet metal elements 36, 37 are movably connected to each other by hollow pins 28 at their respective ends. At the position of each hollow pin 28, the first spring sheet metal element 36 and the second spring sheet metal element 37 overlap and have a corresponding opening for receiving the hollow pin 28. I have.

  The invention is not limited to the embodiments shown and described. Even if features are shown and described in different embodiments, variations within the scope of the claims are possible, as are combinations of features.

DESCRIPTION OF SYMBOLS 1 Package frame 2 1st holding arm 3 2nd holding arm 4 Revolving arm 5 Revolving axis 6 1st winding tube accommodation device 7 2nd winding tube accommodation device 8 Longitudinal axis of winding tube 9 Rolling tube 10 Supporting roller DESCRIPTION OF SYMBOLS 11 1st bearing pin 12 2nd bearing pin 13 drive wheel 14 drive element 15 traversing device 16 traversing direction of traversing device 17 thread 18 package 19 package rotation direction 20 support body 21 support roller support body 22 machine frame Reference Signs List 23 winding tube receiving element 24 holding element 25 spring element 26 female thread 27 through opening in winding tube receiving element 28 hollow pin 29 through opening in holding element 30 screw for winding tube receiving element 31 internal thread 32 screw for holding element 33 spring Metal sheet 34 Central opening 35 Fixing hole 36 1 spring sheet metal element 37 second spring sheet metal element 38 pivoting movement

Claims (10)

A tube receiving device (6, 7) for a package frame (1) of a winding device, comprising a conical tube receiving element (23), a holding element (24) and a spring element (25). In the winding tube accommodating device (6, 7),
The tube receiving element (23) is non-rotatably connected to the holding element (24) via the spring element (25), and the spring element (25) is formed as a spring ring. The spring ring (25) comprises a spring metal sheet (33) having a central opening (34) and at least four fixing holes (35) concentrically arranged with respect to the central opening (34). Or at least four spring sheet metal elements (36, 37), which are formed from a ring or arranged in a ring, each of said spring sheet metal elements (36, 37) having its respective opposite end. A tube receiving device (6, 7), characterized in that, at its part, it is movably connected to each other by a hollow pin (28). Said spring ring (25) consists of six spring sheet metal elements (36, 37) arranged in a ring shape, each said spring sheet metal element (36, 37) having its respective opposite end. Parts, movably connected to each other by said hollow pin (28),
A tube storage device (6, 7) according to claim 1. The spring sheet metal (33) or the spring sheet metal elements (36, 37) are each formed as a spring set of a plurality of individual sheet metals;
A tube accommodating device (6, 7) according to claim 1 or 2. The winding tube receiving element (23) is screwed to the spring element (25), and the holding element (24) is connected to the spring element (25) from the opposite side of the spring element (25). Joined,
A tube receiving device (6, 7) according to any one of the preceding claims. A connection with a screw (30, 32) is provided, said screw (30) being used to connect the tube receiving element (23) to the spring element (25). ) Is passed through the through-opening (29) in a contactless manner and is in each case screwed with one female thread (26) in the tube receiving element (23), and the screw (32) In order to couple the holding element (24) to the spring element (25), the female thread (31) is passed through the winding tube receiving element (23) in a contactless manner and in each case a female thread (31) in the holding element (24). )
The winding tube receiving device (6, 7) according to claim 4. The hollow pin (28) has an internal thread;
A winding tube housing device (6, 7) according to any one of the preceding claims. A package frame (1) comprising two holding arms (2, 3) arranged in parallel, wherein the first holding arm (2) is provided with a first winding tube accommodation device (6). And a second holding arm (3) provided with a second winding tube accommodation device (7) oriented in a direction opposite to the first winding tube accommodation device (6). In (1),
7. At least one of the winding tube housings (6, 7) is formed as in any one of the claims 1 to 6 and the at least one winding tube housing. Package frame (1), characterized in that a holding element (24) of the device is rotatably fixed to said holding arm (2, 3). Said first tube receiving device (6) is arranged so as to be shiftable in its longitudinal axis (8);
Package frame (1) according to claim 7. Said second tube receiving device (7) is coupled to a drive element (13, 14);
A package frame (1) according to claim 7 or claim 8. A winding device for winding a yarn around a winding tube, comprising a package frame (1),
Winding device, characterized in that the package frame (1) is formed as in any one of claims 7 to 9.