JP2019503320A - Winder - Google Patents

Abstract

A winder for winding yarn is disclosed, comprising at least one winding spindle (3.1) and one winding turret (2). The winding turret (2) is rotatably supported by the machine frame (1). At this time, the winding spindle (3.1) is protruded by the fixing means (4.1) so that the winding turret (3.1) protrudes. 2). On the one hand, in order to enable a compact coupling configuration of the winding spindle (3.1) in the winding turret (2) and on the other hand to accept a relatively large bending moment even in the case of a long protruding winding spindle. According to the invention, the fixing means (4.1) is formed by a screw-coupled clamp coupling device (11), the clamp coupling device (11) being wound up Surrounding the shaft (12) of the spindle (3.1).

Description

  The present invention relates to a winder for winding a yarn according to the high-order concept part of claim 1.

  Such a winder is known, for example, on the basis of WO 2005/115896 (WO 2005/115896 A1).

  Known winding spindles are used for winding a plurality of yarns around a package in parallel. For this purpose, the winder has a winding spindle which is fixed to the winding turret so as to protrude. At this time, the protruding portion of the winding spindle serves to accommodate and fix the winding tube around which the package is wound. To accommodate multiple packages, a correspondingly long take-up spindle is required, so that sufficient strength is guaranteed at the connection between the take-up turret and the take-up spindle based on the package weight. Must be done. In known winders, the winding spindle is coupled to the winding turret via a flange coupling device. For this purpose, the flange is formed directly on the chuck shaft.

  Such a flange coupling device between the winding spindle and the winding turret, however, requires a relatively large flange and a correspondingly large number of screws. In particular, however, the production of such a shaft with a large area flange is particularly costly. Furthermore, space provision in the winding turret is limited. Furthermore, the flange screw can be sheared by a torsional moment induced in the axis of the winding spindle, for example during the action of an overload by a cooperating package.

  It is therefore an object of the present invention to provide a winder which can improve a winder of the type mentioned at the outset and in particular can securely hold a winding spindle which protrudes long in the winder turret. .

  Another object of the present invention is to make the fixing form of the winding spindle in the winding turret of the winding machine as compact as possible.

  This object is solved according to the invention by the fixing means being formed by a screw-coupled clamp coupling device, which surrounds the axis of the winding spindle.

  Preferred developments are defined by the features and combinations of features of the dependent claims.

  The invention has the particular advantage that the bending moment induced by the package can be transmitted through the entire length of the clamp coupling device. As a result, a high strength can be obtained even when a dynamic load is applied to the winding spindle. Furthermore, it is possible to realize a fitting portion that requires only a small manufacturing cost.

  In order to obtain a clamping device that is as definite as possible, in a suitably configured development of the invention, the clamping coupling device comprises a clamping block firmly coupled to the winding turret and a screw coupling to the clamping block. In this case, the half hole in the clamp block and the half hole in the clamp cover together form a clamp hole. If comprised in this way, the fitting exact coupling | bond part which clamps a winding spindle can be implement | achieved suitably. Furthermore, a relatively uniform distribution of the contact pressure per unit area around the axis of the winding spindle can be achieved.

  In order to obtain a state similar to that in a shrink fit, it has further been proposed that the clamping hole has an inner diameter somewhat smaller than the clamping diameter of the shaft of the winding spindle. At this time, the clamp hole and the clamp diameter portion of the shaft can be manufactured with high tolerance accuracy.

  In order to apply the clamping force, in a development of the invention it is proposed that the clamp cover is connected to the clamp block by means of a plurality of screws distributed on both sides of the clamp hole. If comprised in this way, planar clamping force can be brought uniformly over the length of a clamp coupling part.

  In order to avoid the occurrence of mating corrosion in the area of the clamping coupling device, the clamping diameter of the shaft is further formed by a diameter step, where the clamping diameter is more than the adjacent diameter of the shaft. It has been proposed that it be formed larger by a factor of about 1.1.

  In order to prevent the take-up spindle from shifting in the axial direction in the take-up turret in the event of an overload, in a particularly preferred development of the invention, a clamp-coupled coupling element is correspondingly arranged in the clamp coupling device. The coupling element can position the winding spindle on the winding turret. With this arrangement, even when the clamping force is lost, the position of the take-up spindle in the clamp coupling device and thus in the take-up turret is guaranteed.

  In a simple and effective development of the invention, it is proposed that the coupling element is formed by a retaining web in the clamping hole and an annular retaining groove in the clamping diameter of the shaft.

  Particularly preferably for assembly at this time, the holding web is formed on the clamp cover, at which time the holding web ends at the bottom of the half hole towards the edges of the half hole. Have The assemblability and the clamping action inside the clamp coupling device are not affected thereby.

  In order to increase the stability, it is further proposed that the clamp block and the winding turret are formed as molded castings.

  Since a winder of the type mentioned at the beginning is preferably used for winding a plurality of yarns in succession, in a preferred development of the invention, the winding turret has a second winding spindle. The two clamp coupling devices are disposed at the winding turret so as to be shifted from each other by 180 °.

  Next, a winding machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

It is a side view showing roughly one embodiment of a winding machine concerning the present invention. FIG. 2 is a longitudinal sectional view schematically showing a part of a clamp coupling device between a winding turret and a winding spindle of the embodiment shown in FIG. 1. FIG. 3 is a cross-sectional view schematically showing the embodiment shown in FIG. 2. It is a top view which shows a clamp cover schematically. FIG. 3 is a cross-sectional view schematically showing the clamp coupling device shown in FIG. 2.

  FIG. 1 schematically shows a side view of an embodiment of a winder according to the invention. The winding machine has a winding turret 2 rotatably supported by a machine frame 1. The winding turret 2 holds a winding spindle 3.1 so as to protrude. The winding spindle 3.1 is connected to the winding turret 2 in a non-rotatable manner by fixing means 4.1. The fixing means 4.1 is formed on the back side of the winding turret 2, and the fixing means 4.1 will be described in more detail below.

  The take-up turret 2 holds a second take-up spindle 3.2 which is displaced by approximately 180 °, and this second take-up spindle 3.2 is likewise fixed by means of fixing 4.2. It is coupled to the winding turret via Since the fixing means 4.1 and 4.2 have the same configuration, the following description is also applicable to the fixing means 4.2.

  A plurality of spindle driving devices 6.1, 6.2 are arranged corresponding to the driving end portions of the winding spindles 3.1, 3.2, respectively. The winding turret 2 is connected to a rotation drive device 5, and the driving means for moving the winding turret 2 inside the machine frame 1 at this time is not shown in detail here.

  A plurality of winding tubes 8 are fastened to the cantilever protruding portions of the winding spindles 3.1 and 3.2 in order to accommodate the package. In the situation shown in FIG. 1, the winding spindle 3.1 is located in the operating region for winding a plurality of yarns around the package 7. Since the winding machine is shown in the operating state, a plurality of packages 7 are held on the winding spindle 3.1.

  In the operating region, the winding spindle 3.1 cooperates with a pressure roller 9 which is rotatably supported, and this pressure roller 9 is in contact with the periphery of the package 7 during winding of the yarn.

  A traverse device 10 is arranged on the upstream side of the pressure roller 9 in the yarn path, and the traverse device 10 guides the yarns to reciprocate to form a traverse package. The yarn is guided by a plurality of head yarn guides 32 forming a run-in portion.

  In the winder shown in FIG. 1, a total of four winding locations are shown, so that a total of four packages are held on the projecting winding spindle 3.1. The number of winding points and the number of packages are examples. With a long projecting winding spindle, it is possible to wind 10, 12 or even 16 packages simultaneously.

  In order to securely hold such a long projecting winding spindle, which can have a projecting length of, for example, 1800 mm, in the winding turret, the fixing means 4.1 is constituted by a clamp coupling device 11. 2 and 3, the clamp coupling device in the winding turret 2 is shown in a plurality of sectional views. 2 shows a longitudinal sectional view in the axial direction of the winding spindle, and FIG. 3 shows a transverse sectional view of the winding spindle 3.1 in the transverse direction. The following description is for both figures unless specifically referring to one of the figures.

  The clamp coupling device 11 is arranged on the back side of the winding turret 2. The winding turret 2 has a clamp block 16 on the back side for this purpose. The clamp block 16 may be integrally formed with the winding turret 2 and may be formed as a molded casting product, for example. The clamp block 16 is formed in a half shell shape and has a half hole 20.1. A clamp opening 25 is formed in the winding turret 2 at the axial extension of the half hole 20.1. The clamping opening 25 is pierced by the shaft 12 of the winding spindle 3.1, which has a clamping part 26 entering the clamping block 16.

  The winding spindle 3.1 has a drive shaft 13 in addition to a shaft 12 formed in a plurality of parts and formed in a hollow cylindrical shape. The drive shaft 13 is a bearing inside the shaft 12. 14 and connected to the spindle drive 6.1 at a drive end 27 not shown in detail here.

  A chuck 15 is formed around the shaft 12 at a protruding portion of the winding spindle, and the chuck 15 is coupled to one end of the drive shaft 13. Since such a winding spindle has been known for a long time, the illustration and description of the protruding part of the winding spindle 3.1 are omitted here.

  The clamp coupling device 11 further comprises a clamp cover 17, which is likewise formed in a half-shell shape and extends together with the clamp block 16 on both sides of the shaft 12. A portion 28 is formed. Since the clamp cover 17 has the half hole 20.2, in the assembled state, the half hole 20.1 of the clamp block 16 and the half hole 20.2 of the clamp cover 17 are one piece. A clamp hole 20 is formed. Inside the clamp hole 20, the shaft 12 is held by a clamp part 26 and a clamp diameter part 19. The clamp diameter portion 19 of the shaft 12 is formed somewhat larger in dimension than the clamp hole 20 between the clamp block 16 and the clamp cover 17. Accordingly, it is possible to realize an accurate fitting clamp by the clamp coupling device 11.

  In order to generate a clamping force, the clamp cover 17 and the clamp block 16 are coupled to each other by a plurality of screws 18. As can be seen in particular in the illustration in FIG. 3, the screws 18 are distributed on both sides of the shaft 12 and pass through the clamp joint 28 between the clamp block 16 and the clamp cover 17. At this time, the screw 18 is preferably screwed into the female thread 29 of the clamp block 16.

  As can be seen from the illustration in FIG. 2, the shaft 12 has a diameter step 21 to form a clamp diameter 19. The diameter step 21 is formed beside the clamp coupling device 11, where the clamp diameter 19 is larger than the adjacent diameter portion 22 of the shaft 12 by a predetermined factor. In order to avoid mating corrosion, the clamp diameter 19 is preferably selected by a factor of 1.1, ie about 10%, greater than the adjacent diameter portion 22. The transition part is rounded and chamfered, and the radius of curvature is preferably twice as large as the diameter difference of the diameter step 21.

  Further, as can be seen from FIG. 2, the clamp coupling device 11 is provided with a shape coupling type coupling element 30, by which the winding spindle 3.1 is positioned on the winding turret 2. Yes. In this embodiment, the coupling element 30 is formed by a holding web 24 formed in the clamp cover 17 and an annular holding groove 23 in the clamp diameter portion 19 of the shaft 12. Since the holding web 24 has entered the holding groove 23, the shaft 12 is fixed in the axial direction. With this configuration, even when the clamping force is relaxed, the winding spindle 3.1 in the winding turret 2 cannot be moved in the axial direction. In extreme cases, the winding spindle 3.1 can rotate inside the clamp coupling device 11.

  In order to form the coupling element 30 and to further explain it, reference is additionally made to FIGS. FIG. 4 schematically shows the clamp cover 17 in plan view, and FIG. 5 shows a cross-sectional view of the clamp coupling device 11 in the position of the coupling element 30. The description below is for both figures.

  The holding web 24 is formed in the half hole 20.2 of the clamp cover 17. As can be seen from the illustration in FIG. 4, the half hole 20.2 extends over the entire width of the clamp cover 17 in the clamp cover 17. A plurality of screw holes 31 are formed on both sides of the half hole 20.2. These screw holes 31 are formed so as to be evenly distributed on the split surface 32 that generates the split joint portion 28 together with the clamp block 16.

  As can be seen from the illustration in FIG. 5, the retaining web 24 is formed in the clamp cover 17 with different web heights. As a result, the retaining web 24 has the maximum web height at the bottom of the half hole 20.2, which is continuously reduced towards the edge of the half hole 20.2. And zero at the edge.

  The structure shown in the above described embodiment of the winding spindle is an example. The main idea of the present invention is that the winding spindle is held by the winding turret using the clamp coupling device. This makes it possible not only to simplify assembly but also to accept large bending moments, especially occurring on very long projecting winding spindles.

Claims (10)

A winder for winding a yarn, comprising at least one winding spindle (3.1) and one winding turret (2), the winding turret (2) being a machine frame (1 ) And the take-up spindle (3.1) is held by the take-up turret (2) so as to protrude by a fixing means (4.1). In
The fixing means (4.1) is formed by a screw-coupled clamp coupling device (11), which clamps the shaft (12) of the winding spindle (3.1). A winder characterized by surrounding.   The clamp coupling device (11) includes a clamp block (16) firmly coupled to the winding turret (2) and a clamp cover (17) coupled to the clamp block (16) by screws. The half hole (20.1) in the clamp block (16) and the half hole (20.2) in the clamp cover (17) together form a clamp hole (20). The winder according to claim 1.   Winding machine according to claim 2, wherein the clamping hole (20) has an inner diameter somewhat smaller than the clamping diameter (19) of the shaft (12) of the winding spindle (3.1). .   The winding according to claim 2 or 3, wherein the clamp cover (17) is coupled to the clamp block (16) by a plurality of screws (18) distributed on both sides of the clamp hole (20). Machine.   The clamp diameter portion (19) of the shaft (12) is formed by a diameter step portion (21), and the clamp diameter portion (19) is formed from an adjacent diameter portion (22) of the shaft (12). The winder according to claim 3 or 4, wherein the winder is formed larger by a factor of about 1.1.   A shape coupling type coupling element (30) is arranged corresponding to the clamp coupling device (11), and the winding spindle (3.1) is moved to the winding turret (2) by the coupling element (30). The winder according to any one of claims 1 to 5, wherein the winder can be positioned.   The coupling element (30) is formed by a retaining web (24) in the clamping hole (20) and an annular retaining groove (23) in the clamping diameter (19) of the shaft (12), The winder according to claim 6.   The holding web (24) is formed in a clamp cover (17), and the holding web (24) has a maximum web height at the bottom of the half hole (20.2). The winder according to claim 7, wherein the web height is zero toward both edges of the half hole (20.2).   The winding machine according to any one of claims 2 to 8, wherein the clamp block (16) and the winding turret (2) are formed as molded castings.   The winding turret (2) has a second clamp coupling device (11) for accommodating a second winding spindle (3.2), the two clamp coupling devices (11) being 180 to each other. The winder according to any one of claims 1 to 9, wherein the winder is offset and arranged in the winding turret (2).

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