JP2022173184A - Take-up winding machine - Google Patents

Abstract

To improve an ordinary take-up winding machine to make cost-effective automation possible, especially at the start of the process.SOLUTION: Winding stations 1.1 to 1.5 are arranged side by side in parallel on a driven winding spindle 6 and in each case, one yarn traversing unit 4 and one overhead yarn guide 3 are included. The overhead yarn guide 3 is movably held by guide means and can be selectively guided between an operating position within the winding stations 1.1 to 1.5 and a splicing position outside the winding stations 1.1 to 1.5. The guide means for moving the overhead yarn guide 3 according to the present invention is connectable to mobile drive means and operable by the mobile drive means to save drive devices in the take-up winding machine.SELECTED DRAWING: Figure 1.1

Description

The present invention relates to a take-up winder having multiple winding stations for winding multiple threads to form a package, according to the preamble of claim 1 .

A general type of take-up winder is known, for example, from WO 2016/180679.

Known take-up winders are used to take up yarn bundles produced in the melt spinning process. The yarns of the yarn group are wound side by side in parallel to form a package on a driven winding spindle. For this purpose, the take-up winder has a plurality of winding stations arranged along a protrudingly held winding spindle. The winding spindle supports multiple packages and serves to wind them simultaneously. Yarn winding takes place in a so-called twill winding pattern, each yarn in the winding station being individually guided in a reciprocating motion in each case using a yarn traversing unit before being wound onto the surface of the package. be done. The feeding of the yarn group to the winding station and the separation of the yarn group are carried out using so-called overhead yarn guides, which in the known take-up winders are freely rotatable variables to reduce yarn friction. It is formed by a direction roller. Each deflection roller here cooperates with an assigned yarn traversing unit to form a traversing plane in which the yarn is guided in a reciprocating motion.

At the start of the process, it is customary to separate the thread group guided by the suction injector and distribute it between the winding stations of the take-up winder. For this purpose, in known take-up winders an overhead yarn guide arranged above the yarn traverse unit is movably held by guide means. The overhead yarn guide can thus be guided between an operating position above the yarn traversing unit and a splicing position. The piecing position is outside the winding station at the free end of the winding spindle. For this purpose, the guide means are assigned linear drives which displace overhead yarn guides which are connected to one another in the slide guide path. Once the yarn group has been separated between the overhead yarn guides held in the splicing position, the linear drive is again actuated to return the overhead yarn guides to their operating position.

However, take-up winders are also known in the prior art in which the displacement of the overhead yarn guide is performed by the operator in order to save the drive for displacing the overhead yarn guide for cost reasons in the winding station. there is A take-up winder in which an overhead yarn guide is arranged on a displaceable support with a handle at its free end is derived, for example, from DE 102 013 000 824 A1. The support can thus be pulled out of the operating position by the operator in order to guide the overhead yarn guide into the splicing position. However, this type of manual operation for splicing yarn groups hinders automation of process management and is more dependent on each operator and his/her own capabilities.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to improve a take-up winder of the general kind so that cost-effective automation is possible, especially at the start of the process.

This object is achieved according to the invention in that the guide means for moving the overhead yarn guide are connectable to and operable by mobile drive means.

Advantageous refinements of the invention are defined by the features and feature combinations of the dependent claims.

The invention is advantageous in that the yarn separation and distribution at the start of the process can be done by overhead yarn guides without additional drives in the take-up winder. Procedures of this kind therefore have to be carried out relatively rarely during the melt spinning process, whereby the drive for moving the overhead yarn guide is very rarely used in known take-up winders. is known to be required. The use of a mobile drive that can be coupled to the guide means for moving the overhead thread guide allows the drive means to be used in a manner adapted to the requirements.

A refinement of the invention in which the overhead yarn guide is held in operating position in the winding station by guide means for coupling and uncoupling the mobile drive means in order to automate the procedure is It has been found to give particularly good results here. In this range positioning of the drive means for coupling to and decoupling from the guide means is possible in the rest position of the guide means. Consequently, it is also possible to transmit the same procedure by the drive means at each start of the process.

Yarn production usually takes place at a plurality of spinning stations with a plurality of take-up winders so that the drive means can be alternately coupled to the guide means of adjacent take-up winders. , is particularly advantageous in that it is displaceable by means of an auxiliary device. Thus, the movable drive means can be selectively sent to those take-up winders which can carry out the start of the process.

In order to be able to supply a plurality of take-up winders with movable drive means, the auxiliary device in a first alternative is provided above the machine frame with a plurality of adjacent take-up winders. The drive means are displaceably held within the gantry. A drive means can therefore preferably be sent to each take-up winder by an actuator in the gantry.

For this purpose, the drive means are preferably formed by a linear drive connectable by a connecting means to the slide of the guide means, the slide being connected to the overhead yarn guide and in the slide guideway. It can be guided longitudinally along. The overhead yarn guide and guide means are held above the take-up winder (as is known) and thus establish a connection between the drive means and the guide means arranged below the drive means. For this reason, coupling means with a simple structure can be used.

Alternatively, however, the auxiliary device may be formed by a manipulator robot which guides drive means along adjacent take-up winders and positions said drive means for coupling to the respective guide means. There is also Manipulator robots of this kind are known for automating the guiding of the yarn at the start of the process. To this extent, a manipulating robot of this kind can also be advantageously used to support movable drive means and, if necessary, to be coupled to the guide means of the take-up winder.

An embodiment variant in which the drive means is formed by a rotary drive connectable to the free end of the spindle of the guide means by means of a manipulating robot is particularly advantageous here, the spindle moving through the sliding guide path. connected to the overhead thread guide. It is thus possible, for example, to use a simple cordless screwdriver as a rotary drive for the manipulator robot to drive the spindle for moving the overhead yarn guide. A simple plug connection that facilitates guiding and coupling of the manipulating robot can be implemented as coupling means.

In order to automate simple tasks of the operator, a refinement of the invention is provided in which the drive means are formed by actuating cylinders provided on the manipulator robot, said actuating cylinders being displaceable of the coupling means. Connectable to the connecting end of the support, the overhead thread guide is fixed to the support. The work required to withdraw the movable support can therefore be easily automated by means of an actuating cylinder provided on the manipulator robot.

In order to obtain an ideal air gap above the take-up winder and to reposition the operating device when the yarn is first spliced on the end side of the take-up winder, a winding station is provided. A refinement of the invention in which the overhead yarn guide is formed by a rotatably mounted deflection roller is particularly advantageous. As a result, the thread can be separated from a substantially horizontal plane.

In order to further explain the invention, some exemplary embodiments of the take-up winder according to the invention are described in more detail below with reference to the accompanying figures.

1 is a schematic side view of a first exemplary embodiment of a take-up winder according to the invention; FIG. Figure 1.2 is a schematic plan view of the exemplary embodiment of Figure 1.1; Figure 1.2 is a schematic side view of the exemplary embodiment of Figure 1.1 in a modified operating state; Fig. 4 is a schematic side view of a further exemplary embodiment of a take-up winder according to the invention; Fig. 4 is a schematic side view of a further exemplary embodiment of a take-up winder according to the invention;

An exemplary embodiment of a take-up winder according to the invention is schematically illustrated in several views in FIGS. 1.1, 1.2 and 1.3. Figures 1.1 and 1.3 show a side view of an exemplary embodiment in different operating states, and Figure 1.2 shows a plan view. The following description applies to all figures unless explicitly stated in any figure.

The take-up winding machine according to the invention in this exemplary embodiment has a total of five winding stations 1.1 to 1.5 arranged side by side in the machine frame 10 . The winding stations 1.1 to 1.5 are arranged longitudinally along a winding spindle 6 which is held projecting. In operation, one of the yarns of yarn group 2 is wound in each case to form a package 8 at each winding station 1.1 to 1.5, which is held side by side on winding spindle 6. be done. The number of winding stations 1.1-1.5 and the number of yarns in the yarn group here are exemplary. In principle, a take-up winder of this kind can have up to 16 winding stations. The operating conditions for winding the package 8 are illustrated by dashed lines in FIG. 1.1.

The winding stations 1.1 to 1.5 are of identical construction and in each case have one yarn traversing unit 4. In FIG. Each yarn traversing unit 4 here has a traverse, not shown in more detail here, for guiding back and forth the yarn assigned to the winding station 1.1 to 1.5 in one traversing stroke. contains means. The yarn traverse unit 4 can be configured by, for example, a reverse yarn traversing mechanism, a belt traversing mechanism, or a rotating blade traversing mechanism.

Each of the winding stations 1.1 to 1.5 is assigned a winding tube 9 on the circumference of the driven winding spindle 6 so that the yarns of the yarn group are wound in parallel. For this purpose, the winding tube 9 is clamped onto the circumference of the winding spindle 6 . The winding spindle 6 extends here over the winding stations 1.1 to 1.5, the yarns of the winding stations 1.1 to 1.5 being wound in parallel to form a package.

A contact pressure roller 5 extending parallel to the winding spindle 6 and thus assigned to the winding stations 1.1 to 1.5 is provided for winding the yarn onto the surface of the package. A contact pressure roller 5 is configured in the region between the yarn traversing unit 4 and the winding spindle 6 . The machine frame 10 serves to accommodate and fix the yarn traversing unit 4 , the contact pressure roller 5 and the winding spindle 6 . The winding spindle 6 is projectingly mounted on a winding turret 7 and the winding turret 7 is rotatably held on the machine frame 10 . The winding turret 7 carries a second winding spindle 6 which is arranged offset by 180° with respect to the first winding spindle 6 . By rotating the winding turret 7, both winding spindles 6 are alternately guided into the winding area and the switching area to continuously wind the yarn of the winding stations 1.1 to 1.5. , can form a package. Each winding spindle 6 and each winding turret 7 is in each case connected to a drive, not shown here.

One overhead yarn guide 3 for receiving and separating the yarn groups 2 between the winding stations 1.1-1.5 is in each case located above the yarn traversing unit 4 at each winding station 1.1. It is assigned from 1 to 1.5. The overhead yarn guides 3 distributed between the winding stations 1.1-1.5 thus form the entrance to each winding station 1.1-1.5.

Each overhead thread guide 3 is held on a guide rail 13 by a movable holder 14 . A guide rail 13 is arranged above the machine frame 10 and extends along the winding spindle 6 via a straight guide section. The straight guide section of the guide rail 13 is followed by a curved guide section which extends beyond the spindle end of the winding spindle 6 to the working end. The holders 14 of the overhead thread guide 3 are in each case connected to each other by means of flexible belts 15, for example.

A guide means 12 is assigned to the overhead yarn guide 3 . 1.1 and 1.2, the guide means 12 in this exemplary embodiment are slide guide paths 12.1 and are guideable along the slide guide paths 12.1. slide 12.2. The slide 12.2 is connected to the holder 14 of the overhead yarn guide 3 located at the first winding station 1.1. The sliding guide path 12.1 extends parallel to the winding spindle 6 and the overhead yarn guide 3 is moved by the holder 14 in the operating position illustrated in FIG. .3 is displaceable to and from the splicing position illustrated.

A mobile drive means 18 is provided for actuating the guide means 12 . A mobile drive means 18 is displaceably held above the machine frame 10 by an auxiliary device 16 , the drive means 18 being connectable to the guide means 12 via coupling means 20 . In a specific exemplary embodiment, the auxiliary device 16 is formed by a gantry 17 extending above the machine frame 10 . As can be derived from Figure 1.2, the gantry 17 extends over multiple take-up winders. For this purpose, FIG. 1.2 shows the machine frame 10' of adjacent take-up winders. The drive means 18 are configured to be displaceable within the gantry 17 and are configured such that the drive means 18 are alternately connectable to the guide means 12, 12' of adjacent take-up winders. there is For this purpose the drive means 18 of the gantry 17 are displaced transversely to the direction of movement of said drive means 18 .

The drive means 18 in this exemplary embodiment are formed by a linear drive 19 . The linear drive 19 is realized as a rodless lifting cylinder held by the gantry 17 at both ends. The linear drive 19 is assigned a guide pin as coupling means 12 here, which can be coupled via the slide yoke 12.3 of the slide 12.2. This situation is illustrated in Figure 1.1.

The take-up winder in Figure 1.1 is shown at the start of the process before the first splicing of the yarn group. The overhead yarn guide 3 for this purpose is first held in its working position and the linear drive 19 can be coupled to the guide means 12 . The operating state for winding the thread group 2 to form the package 8 is indicated by dashed lines in FIG. 1.1.

The overhead thread guide 3 in this exemplary embodiment is in each case formed by a deflection roller mounted so that it can rotate freely. For this purpose, the thread group 2 can be fed to the winding stations 1.1 to 1.5 via a godet 11 arranged laterally below the gantry 17. FIG.

In order to be able to splice or separate the yarn group 2, when the linear drive 19 is actuated, the slide 12.2 of the guide means 12 moves the overhead yarn guide 3 on the guide rail 13 to the winding spindle 6. Guide to the edge side. The overhead thread guide 3 is guided up to the curved end of the guide rail 13, as shown in Figure 1.3. The thread group 2 in this state is guided by the suction gun 27 . The threads here are deflected by godets 11 and auxiliary rollers 28 on the machine frame 10 .

As shown in Figure 1.2, the overhead yarn guides 3 are displaced by holders 14 and guided on guide rails 13 such that when the overhead yarn guides 3 are returned from the splicing position to the operating position, each of the overhead yarn guides 3 captures and acquires one of the yarns of yarn group 2. For this purpose, a linear drive 19 on the gantry 17 is activated for return movement and guides the slide 12.2 of the guide means 12 back to its initial position. Thus, the yarns of the winding stations 1.1-1.5 are assigned and can be picked up by additional auxiliary equipment on the machine frame 10. FIG. The linear drive 19 is decoupled from the guide means 12 and in the gantry 17 can feed the adjacent take-up winder. In this range the drive means 18 can be selectively applied to a plurality of take-up winders to perform the initial splicing of the yarn group.

The exemplary embodiments of the take-up winder according to the invention shown in FIGS. 1.1 to 1.3 are possible variants of the structure for guiding the mobile drive means 18. FIG. In principle, however, there is also the possibility of guiding the drive means 18 by means of an operating robot. Manipulating robots of this kind for carrying out yarn guidance during the first piecing in take-up winders are known and described, for example, in WO 2019/001948. An alternative exemplary embodiment of the take-up winder according to the invention, in which the mobile drive means 18 are guided by an operating robot, is shown in FIG.

The exemplary embodiment according to FIG. 2 shows a side view at the beginning of the process. In this exemplary embodiment the guide means 12 comprise a rotatably mounted spindle 24 connected to the slide 12.2. By rotating the spindle 24 the slide 12.2 can be moved parallel to the winding spindle 6. FIG. To this extent, the structure of the exemplary embodiment according to FIG. 2 is substantially identical to that of the exemplary embodiment according to FIGS. 1.1-1.3. Therefore, only the differences will be described below, and reference will be made to the previous description otherwise.

As already explained in the context of the previous exemplary embodiments, the overhead thread guide 3 is guided in the guide rail 13 via holders 14 . By rotating the winding spindle 24, the slide 12.2 can be moved in order to displace the overhead yarn guide 3. The drive means 18 for actuating the guide means 12 are formed by a rotary drive 22 . A rotary drive 22 , which may for example be configured as a cordless screwdriver, is coupled to the free end of a spindle 24 . A rotary drive 22 is held by a working arm 23 of a manipulating robot 21 and can be actuated upon positioning and coupling to a spindle 24 . By actuating the rotary drive 22 the slide 12.2 is moved via the spindle 24 and the overhead yarn guide 3 is displaced from the working position into the splicing position.

In order to separate and distribute the yarn group, the rotary drive 22 is rotated in reverse, viewed in its direction of rotation, thereby moving the overhead yarn guide 3 back into its operating position. When the splicing procedure is completed, the operating robot 21 separates the rotary drive device 22 from the spindle 24 .

A further exemplary embodiment of the take-up winder according to the invention for guiding the drive means 18 by an auxiliary device in the form of a manipulating robot 21 is shown in FIG. The exemplary embodiment of the take-up winder is substantially the same as the previous exemplary embodiments, so only the differences will be described at this point.

In the exemplary embodiment of the take-up winder according to the invention shown in FIG. 3, the overhead yarn guide 3 is arranged stationary on the support 25 . A support 25 above the machine frame 10 is displaceably guided on guide rails 13 as guide means 12 . A coupling means 20 is configured at the free end of the support 25 on the end side of the take-up winder. A movable drive means 18 can be connected to the support 25 via the connecting means 20 . For this purpose, the drive means 18 are formed by an actuating cylinder 26, which may be realized, for example, by a piston-rodless lifting cylinder. The coupling means 20 between the actuating cylinder 26 and the support 25 can for example consist of a solenoid. Mechanical coupling means are also possible in principle.

The actuating cylinder 26 is held, for example, by a holding arm 29 which is held height-adjustably on the manipulator robot. The actuating cylinder 26 can thus be guided over a plurality of take-up winders and then sent to each take-up winder when required.

The illustrated exemplary embodiment of the take-up winder according to the invention only represents an individual solution with respect to the construction of the inventive concept. In principle, the invention covers all take-up winders in which other conventional drives for adjusting the overhead yarn guide are replaced by mobile external drive means. In this range all mobile drive means are suitable for temporary connection to the guide means for moving the overhead yarn guide. In this way a mobile drive means can be used for a plurality of take-up winders.

Claims (9)

A plurality of winding stations (1.1-1.5) for winding a plurality of yarns so as to form packages wound side-by-side on a driven winding spindle (6). a take-up winder comprising a plurality of yarn traverse units (4) arranged to be distributed between said winding stations (1.1-1.5) and said yarn traverse units ( 4), a plurality of overhead yarn guides (3) arranged upstream of said overhead yarn guides (3), said overhead yarn guides (3) being assigned guiding means (12), through said guiding means (12): Said overhead yarn guide (3) is selectively guided into an operating position within said winding station (1.1-1.5) or into a splicing position outside said winding station (1.1-1.5). In a take-up winder it is possible to
wherein said guide means (12) for moving said overhead yarn guide (3) are coupleable to and operable by said movable drive means (18). A take-up winding machine characterized by: Said overhead yarn guide (3) is moved in said winding station (1.1-1.5) by means of said guide means (12) for coupling and uncoupling said movable drive means (18). 2. The take-up winder according to claim 1, wherein the take-up winder is held in the operating position of . said drive means (18) being displaceable by an auxiliary device (16, 21) so as to be alternately connectable to a plurality of guide means (12, 12') of adjacent take-up winders; 3. A take-up winder according to claim 1 or 2. Said auxiliary device (16) is formed by a gantry (17) extending above said machine frame (10) and across a plurality of adjacent take-up winders, said drive means (18) being driven by said 4. Take-up winder according to claim 3, characterized in that it is displaceably held in the gantry (17). Said drive means (18) is formed by a linear drive (19) connectable to a slide (12.2) of said guide means (12) by means of coupling means (20), said slide (12.2) ) is connected to the overhead thread guide (3) and is longitudinally guideable along a slide guide path (12.1). . Said auxiliary device (16) is for guiding said drive means (18) along adjacent take-up winders and for coupling said drive means (18) to each said guide means (12, 12'). 4. The take-up winder according to claim 3, characterized in that it is formed by a manipulating robot (21) which positions the . Said drive means (18) are formed by a rotary drive (22) connectable by said manipulating robot (21) to the free end of said guide means spindle (2), said spindle (24) being 7. A take-up winder according to claim 6, characterized in that it is connected to the overhead yarn guide (3) via a slide (12.2). Said drive means (18) are formed by an actuating cylinder (26) provided on said manipulating robot (21), said actuating cylinder (26) providing a movable support for said guide means (12). 7. Take-up winder according to claim 6, characterized in that the overhead yarn guide (3) is connectable to the connecting end of (25) and is fixed to the support (25). from claim 1, characterized in that the overhead yarn guide (3) provided at the winding station (1.1-1.5) is formed by a rotatably mounted deflection roller 8. Take-up winder according to any one of claims 8 to 8.

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