TW201730396A - Knotting installation and creel - Google Patents

Abstract

A knotting installation (13) having a first web path for an end of a first yarn bundle (16), and a second web path (21) for a lead of a second yarn bundle (22) is stated, wherein the second web path (21) runs around a mandrel (17) that is hollow and has a suction opening, the first web path is disposed in front of the suction opening, the suction opening is connected to a suction installation (20), and the mandrel (17) is displaceable in relation to the first web path.

Description

Knotting device and creel

The present invention relates to a knotting device for a yarn bundle.

The invention also relates to a creel having at least one warp beam mount and a creel exit, on which is provided such a knotting device.

The invention will be described by way of a combination, but is not limited by it.

In the case of a combined device, the skeins of the plurality of segmented warp beams are integrated to form a warp beam. If desired, the skein or integrated skein wound on the warp beam can be subjected to another process, for example, sizing can be performed.

When the fed skein has to be replaced, for example because one or more of the segmented warp beams have been used up, or because the shafting is to be made of other yarns, the windings can be wound The ends of the yarns are joined to the newly fed skein front ends so that the newly fed skeins can be guided through the device in the same path as the previously wound hanks.

In this regard, the procedure generally involves forming a plurality of first yarn bundles from the ends of the hank wound on the warp beam and forming a plurality of second yarn bundles from the front end of the newly fed hank. Each first yarn bundle will be tied to a second yarn bundle. However, knotting is more cumbersome and laborious for an operator.

The present invention is based on the object of simplifying the operation of an operator at the exit of a creel.

This object can be achieved by a knotting device having a first warp yarn path for one end of a first yarn bundle and a second warp yarn path for a front end of a second yarn bundle, wherein the first The second warp yarn path runs around a mandrel, which is hollow and has a suction hole. The first warp yarn path is disposed in front of the suction hole, and the suction hole is connected to a suction device, and the mandrel is Displaced relative to the first warp path.

In the case of a knotting device of this type, it is only required that the two yarn bundles are arranged in accordance with the warp yarn paths. If it is the first warp path, it is simpler because the yarn bundle only has to be arranged in front of the suction hole. For example, if the first yarn bundle hangs downward in the direction of gravity, it will automatically be positioned in a correct manner in many cases. The second yarn bundle only has to be placed around the mandrel, as a result, a slip knot or the like is formed. The suction opening can be made smokable by means of the suction device. If the suction hole is sucked, that is, a negative pressure is generated, the first yarn bundle is sucked into the suction hole and passes through the collar or the slip knot, which will be in the second The second yarn bundle is formed in the warp yarn path. The mandrel is displaceable relative to the first warp yarn path and the weir can be displaced to engage the first yarn bundle in the loop or slip knot of the second yarn bundle. The slip knots need only be bundled so that the two yarn bundles can be interconnected in a sufficiently strong manner.

Preferably, the mandrel is displaceable relative to a stripping device. If When the mandrel is displaced, the stripping device can strip the second yarn bundle from the mandrel, so that the slip knot formed by the second yarn bundle can slide on the first yarn bundle, so the second yarn bundle Will connect to each other in a reliable way.

Preferably, an overlapping device is disposed adjacent to the mandrel. The overlapping means can be used to push a slip knot formed on the first yarn bundle by the second yarn bundle, particularly in a direction in which the slip knot is formed in a longitudinal direction of the first yarn bundle to cause a flat Knot.

Preferably, the second warp path is run through a slider that is displaceable along a portion of the second warp path. That is to say, by means of a slider of this type, it forms part of the overlapping means which can be tightened. In a particularly preferred embodiment, the end of the second yarn bundle is folded back once so that the end is guided back along a distance and can be parallel to the remainder of the second yarn bundle. This double beam profile will be pulled once through the U-shaped end of the double beam profile to form a slip knot. This slip knot is provided in the second warp path. Once the slip knot has been pushed onto the first yarn bundle, the slider 推 can push the "U" shaped tip through the slip knot, causing a flat knot to be caused thereby. A flat knot of this type connects the two yarn bundles with sufficient strength, so that the second yarn bundle can be pulled through a downstream processing machine by means of the first yarn bundle by means of the first yarn bundle .

In another variation, the overlapping device can also have a retaining bar about which the second warp path runs and which is movable relative to the first warp path. The retaining rod is adapted to hold the slip knot formed by the second yarn bundle when the second yarn bundle is being stripped by the mandrel. The holding rod 嗣 can be guided in a direction in which the first yarn bundle is fed, so that the first yarn can be A slip knot formed by the second yarn bundle is pushed on the bundle. Such a flat knot can also be reliably obtained.

The invention also relates to a creel having a knotting device of the type at the exit of the creel.

In the case of a creel of this type, the operator only has to move the yarn bundle of the skein that is running into the correct position in front of the suction holes, and the yarn bundle of the skein fed before is arranged in the first In the two warp path. This behavior is relatively simple and physically less laborious. Then, the knotting device only has to be sucked by the setting device by the setting operation, and when the first yarn bundle enters the suction hole, the mandrel is moved relative to the first warp yarn path in various cases.嗣, the individual junctions are formed in the mating rings of all of the first and second yarn bundles. This procedure will also be performed faster, so this replacement will not waste too much time.

A skein path is preferably disposed between the warp beam mount and the knotting device, and a yarn bundle generating device is provided that is at least partially displaceable relative to the hank path. This operation can be simplified by the yarn bundle generating device. The yarn bundle generating device produces a plurality of yarn bundles from the fed hank, wherein the number of the yarn bundles expediently corresponds to the number of available knotting devices. Since the yarn bundle generating means is at least partially movable relative to the skein path, it can be fed into the skein path and the yarns are collected into bundles to form a yarn bundle.

Preferably, the yarn bundle generating device has a support on which a plurality of projections are protruded from the support in a direction toward the skein arrangement, wherein each of the projections is assigned a grip. These protrusions can enter The skein is inserted and the skein is subdivided in the width direction into as many portions as the knotting device. These portions of the crucible are gathered by the gripping member to cause a bundle of yarns to be caused.

Preferably, the projections have a tip and are movable into the skein. The tip facilitates insertion of the projections into the skein. The risk of damage to the yarn of the hank is small.

Preferably, a second yarn bundle generating device is disposed behind the knotting device in a direction from the warp beam to the knotting device. The second yarn bundle generating device can be constructed in exactly the same manner as the first yarn bundle generating device as described above. With the second yarn bundle generating device, a corresponding number of bundles of yarns that are disposed in the first warp yarn path can be formed by the skein that is running out.

A knotting device is preferably assigned to each intermediate space between a protrusion and a grip. In this way, the correlation between the number of such knotting devices and the number of yarn bundles being caused can be ensured in a simple manner.

The gripper and a protrusion are preferably adjacent to the protrusions assigned to the gripper and are movable and can overlap each other. In this way, it is ensured that the grips do not interfere when the yarns are being separated to form an individual group into which the bundles will be formed. The grip will be hidden in the protrusion or behind.

Preferably, the gripping member and the protrusion are each formed by a plurality of layers, wherein an intermediate space is formed between the layers, and each layer of the gripping member enters the middle of the protrusion. space.

1‧‧‧ creel

2, 3‧‧‧ warp beam mount

4, 5‧‧‧ section warp beam

6, 7‧‧‧ segmented skein

8, 9‧‧‧ biased wheel

10‧‧‧ skein

11‧‧‧Feed in direction

12‧‧‧ traction device

13‧‧‧Knotting device

14‧‧‧First yarn bundle generating device

15‧‧‧second yarn bundle generating device

16‧‧‧First yarn bundle

17‧‧‧ mandrel

18‧‧‧ suction hole

19‧‧‧ Notch

20‧‧‧Suction device

21‧‧‧Second warp path

22‧‧‧second yarn bundle

End of 23‧‧‧

24‧‧‧Party yarn bundle

25‧‧‧U-shaped base

26‧‧‧Slipknot

27‧‧‧ Stripping device

28‧‧‧ Slider

29, 30‧‧ ‧ pin

31‧‧‧ flat knot

32‧‧‧ bracket

33‧‧‧ Outstandings

34‧‧‧ tip

35‧‧‧ clearance

36‧‧‧Scratch

37‧‧‧ drive

38, 40‧ ‧ layers

39, 41‧‧‧Intermediate space

42‧‧‧ moving direction

43‧‧‧ yarn groups

A‧‧‧Old skein

B‧‧‧New skein

The invention will be described by way of a preferred embodiment in conjunction with the drawings in which: Figure 1 shows a knotting device having a first yarn bundle; Figure 2 shows the knotting device with a first yarn The bundle is drawn therein; Figure 3 shows the knotting device having the first and second yarn bundles; Figure 4 shows a perspective view of the device of Figure 3; Figure 5 shows a finished knot; Figure 6 shows a yarn The beam generating system; Fig. 7 shows the VI portion of Fig. 6; Fig. 8 shows the yarn bundle generating device in operation; and Fig. 9 shows a highly schematic view of a creel.

First, please refer to the height diagram of one of the creels 1 shown in FIG.

The creel 1 has two warp beam mounts 2, 3, each of which has a segmented warp beam 4, 5 attached to each of the warp beam mounts 2, 3. A segment of skein 6, 7 is drawn from each segment of the warp beam 4, 5. The segmented skeins 6, 7 are guided through the deflection rollers 8, 9 and integrated after the final deflection roller 9 to form a skein 10. This skein 10 is fed into a combined device (or to another processing device) in the direction of an arrow 11. A device for additional sizing can even be placed upstream of the combination.

Of course, more than two of the illustrated warp beam mounts 2, 3 can also be provided such that more than two segment warp beams 4, 5 can be received in the creel 1.

If the segmented warp beams 4, 5 need to be replaced, for example because the segmented warp beams 4, 5 have been exhausted, or if another skein 10 is to be additionally processed, the following procedure will continue, In order to be able to easily distinguish the old skein, that is, the skein that is running out, it will be marked with "A", and the new skein, that is, the skein being fed, is marked with "B".

The fed skein B is drawn by the (new) segmented warp beams 4, 5 and pulled up to a point behind the knotting device 13, which is shown only schematically in Figure 9. This will be explained in more detail by means of Figures 1 to 5. A first yarn bundle generating device 14 produces a plurality of yarn bundles from the feed skein B. The bundles of yarns are cut off before the traction device 12, that is to say between the traction device 12 and the knotting device 13, and fed into the knotting device 13, as will be described later.

A second yarn bundle generating device 15 is provided for the skein A that is running out. The second yarn bundle generating device 15 similarly produces a plurality of yarn bundles, wherein the number of yarn bundles of the skein A that is running out is the same as the number of yarn bundles of the fed skein B. Here, the skein A that is running out and the skein B that is fed in are expediently still overlap each other. In order to simplify the following description, the yarn bundle of the skein A that is running out is referred to as a "first yarn bundle", and the yarn bundle of the fed skein B is referred to as a "second yarn bundle".

As shown in Figures 1 to 5, the knotting device 13 for each of the first yarn bundles 16 has a mandrel 17, which is hollow and has a suction hole 18. The suction hole may be formed by a V-shaped recess 19 on the end side of the mandrel 17, wherein the base of the "V" is aligned to be parallel to the first yarn bundle 16. In the preferred embodiment, the first yarn bundle 16 is transported in the direction of gravity. The line is said to be in a vertical way. Therefore, the base of the V-shaped recess 19 is also aligned in the direction of the gravity.

The suction hole 18 is connected to a suction device 20 so that the suction hole can be impacted by a negative pressure. As shown in Fig. 2, the first yarn bundle is sucked into the mandrel 17 by this negative pressure.

The first yarn bundle 16 is located in a first warp yarn path, which is shown in FIG. This warp path will run in front of the suction hole 18. The circumference of the mandrel forms a second warp path 21. The second yarn bundle 22 is now arranged in the second warp yarn path 21, that is to say placed around the circumference of the mandrel 17, and the weir can form a slip knot. For the sake of clarity, this is not shown in Figures 1 and 2. However, the manner in which the second yarn bundle 22 is arranged in the second warp yarn path 21 can be known from Figures 3 and 4.

In this regard, in a particularly advantageous embodiment, the second yarn bundle 22 is treated as follows: one end 23 of the second yarn bundle 22 is deflected by 180° and is guided to the so-called feed. The two yarn bundles 22 are parallel. Therefore, a portion 24 of the bundle 22 and the end 23 of the second bundle 22 are parallel to each other to form a "U" shape which is open toward the bottom. A base portion 25 of the U-shape is guided back to the end 23 and the portion 24, so that a slip knot 26 is formed which can be pushed onto the mandrel 17. This is a simpler disposal. When the above details are completed, the second yarn bundle 22 will first be guided through the second warp yarn path 21, and the first yarn bundle 16 will be introduced into the first warp yarn path. Once the first yarn bundle 16 is drawn into the mandrel, the mandrel 17 is moved relative to the second yarn bundle 22. A stripping device 27 is provided expediently such that the slip knot 26 can be stripped by the mandrel 17. The first yarn bundle 16 The cockroach will run through the slip knot 26.

The mandrel can be moved further away from the first warp yarn path and by the first yarn bundle 16 such that the first yarn bundle 16 is completely released from the mandrel 17.

The second yarn bundle 22, by virtue of its portion 24 and the end 23, is guided through a slider 28 which is displaceable to be parallel with the second yarn bundle 22. The slider has two pins 29, 30. When the slider 28 is moved upward toward the second yarn bundle 22, the two pins 29, 30 push the U-shaped base portion 25, that is, a portion of the slip knot 26 that passes over the slip knot 26 A flat knot 31, as shown in Fig. 5, results in a reliable interconnection of the first yarn bundle 16 and the second yarn bundle 22.

Instead of an overlapping device having the slider 28, another configuration of an overlapping device can also be used in a manner not shown in more detail. Wherein, a holding rod has two portions extending in parallel with the mandrel and connected by an oblique portion, and is disposed substantially in parallel with the mandrel 17. At the beginning of a knotting process, a parallel portion is placed adjacent to the mandrel. The second warp path will run outside the holding rod, so that the holding rod will be wrapped by the second yarn bundle 22, that is, the U-shaped base 25 is tied to the outside of the holding rod, and adjacent The two portions of the base portion 25 are disposed on both sides of the holding rod, that is, a portion thereof is tied between the mandrels 17, and a portion is attached to the outside.

The mandrel 17 is retracted with the retaining rod, and the base 25 is moved up to the beveled portion to reach another parallel portion of the retaining rod. Then, at least the holding rod will move in the direction in which the first yarn bundle 16 ran out The U-shaped base 25 is thus pulled in the direction of the first yarn bundle 16 to form a flat knot.

The yarn bundle generating devices 14, 15 are provided to enable the yarn bundles to be produced, as previously described. The first yarn bundle generating device 14 will be explained in more detail by means of Figures 6 to 8. The second yarn bundle generating device 15 has the same configuration.

The yarn bundle generating device 14 has a bracket 32 that extends transversely to the hank 10 and is arranged in a substantially horizontal manner. The hank 10 is arranged in a skein path.

A larger number of protrusions 33 are attached to the bracket 32. In this plan view, the projections 33 are configured to be approximately triangular in shape with a tip 34 that is directed toward the skein 10. The projections 33 have a clearance 35.

Each projection 33 is assigned a grip member 36 that is displaceable parallel to the longitudinal extent of the bracket 32. A driver 37 is provided to move the gripper 36.

As can be seen in Figure 8, each of the protrusions 33 is comprised of a plurality of layers 38, wherein an intermediate space 39 is provided between the layers.

The grip member 36 also has a plurality of layers 40, and an intermediate space 41 is provided between the layers. The layers 40 of the gripping member 36 can enter the intermediate space 39 of the projection 33, and the layers 38 of the projection 33 can enter the intermediate space 41 of the gripping member. Therefore, the protrusions and the grip members can be moved to overlap each other as shown in FIG. The bracket 32 is movable toward the skein 10 in the direction of an arrow 42, in particular in such a manner that the protrusions 33 will The skein 10 is entered to form a plurality of yarn groups 43. If the grippers 36 are subsequently moved, the yarns of a group 43 are collected to form a bundle and will be received in the clearance 35. The yarn bundle thus formed can be cut individually and placed around the mandrel 17 by a procedure as described in the context of Figures 1 to 5.

13‧‧‧Knotting device

16‧‧‧First yarn bundle

17‧‧‧ mandrel

20‧‧‧Suction device

21‧‧‧Second warp path

22‧‧‧second yarn bundle

End of 23‧‧‧

24‧‧‧Party yarn bundle

25‧‧‧U-shaped base

27‧‧‧ Stripping device

Claims (14)

A knotting device has a first warp yarn path for one end of a first yarn bundle, and a second warp yarn path for a front end of a second yarn bundle, wherein the second warp yarn path runs around a mandrel, The hollow warp beam has a suction hole, and the first warp yarn path is disposed in front of the suction hole, the suction hole is connected to a suction device, and the mandrel is displaceable relative to the first warp yarn path. . A knotting device according to claim 1, characterized in that the mandrel is displaceable relative to a stripping device. A knotting device according to claim 2, characterized in that an overlapping device is arranged adjacent to the mandrel. The knotting device of claim 3, wherein the second warp yarn path runs through a slider that is displaceable along a portion of the second warp yarn path. A knotting device according to claim 3, characterized in that the overlapping device has a holding rod about which the second warp yarn path runs and which is movable relative to the first warp yarn path. A creel having at least one warp beam mount and a creel outlet having at least one knotting device as claimed in any one of claims 1 to 5. The creel of claim 6, characterized in that a skein path is disposed between the warp beam mount and the knotting device, and a yarn bundle generating device is provided, which is at least partially opposite The skein path is displaced. The creel of claim 7, characterized in that the yarn bundle generating device has a bracket on which a plurality of protrusions are provided to face the skein The direction is highlighted by the bracket, wherein each protrusion is assigned a grip. A creel as claimed in claim 8, characterized in that the projections have a pointed end and are movable into the skein path. A creel according to any one of claims 6 to 9, characterized in that a second yarn bundle generating device is disposed behind the knotting device in a direction in which the warp beam is mounted to the knotting device. A creel according to any one of claims 6 to 10, characterized in that a knotting device is assigned to each intermediate space between a protrusion and a grip. A creel according to any one of claims 8 to 11, characterized in that the gripping member and a projection adjacent to the projection assigned to the gripping member are movable to overlap each other . The creel of claim 12, wherein the gripping member and the protrusion are each formed by a plurality of layers, and the intermediate space is disposed between the layers, and the layers of the gripping member enter the protrusion. In the middle space of the object. A creel according to any one of claims 8 to 13, characterized in that the projection has a clearance.