Take-up winding machine

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

Technical Field

[0001] The present invention relates to a take-up winder having a plurality of winding stations for winding a plurality of yarns so as to form a package, as described in the preamble of claim 1.

Background Art

[0002] A general type of take-up winder is known, for example, from International Publication No. 2016 / 180679.

[0003] Known take-up winders are used to wind a group of yarns produced in a melt spinning process. The yarns of the yarn group are wound side by side and in parallel so as to form a package on a driven winding spindle. For this purpose, the take-up winder has a plurality of winding stations configured along a protruding and held winding spindle. The winding spindle supports a plurality of packages and helps to wind them simultaneously. The winding of the yarns is performed in a so-called herringbone pattern, and each yarn in the winding station is individually guided in a reciprocating motion using a yarn traversing unit in each case before being wound up on the surface of the package. The supply of the yarn group to the winding station and the separation of the yarn group are performed using a so-called overhead yarn guide, which is formed by a freely rotatable deflector roller in known take-up winders to reduce the friction of the yarn. Each deflector roller cooperates here with an assigned yarn traversing unit to form a herringbone plane in which the yarn is guided in a reciprocating motion.

[0004] At the start of the process, it is customary to separate the yarn bundles guided by the suction injector and distribute them between the winding stations of the take-up winder. For this purpose, in known take-up winders, overhead yarn guides located above the yarn traverse unit are held movably by guiding means. Thus, the overhead yarn guides are guideable between an operating position above the yarn traverse unit and a yarn splice position. The yarn splice position is outside the winding station at the free end of the winding spindle. For this purpose, the guiding means are assigned a linear drive that displaces the overhead yarn guides connected to each other within a sliding guide path. Once the yarn bundles are separated between the overhead yarn guides held at the yarn splice position, the linear drive is activated again to return the overhead yarn guides to their operating position.

[0005] However, prior art also includes take-up winders in which the operator manually displaces the overhead yarn guides to save on the cost of the drive mechanism for displacing the overhead yarn guides at the winding station. A take-up winder in which the overhead yarn guides are positioned on a displaceable support having a handle at the free end is derived, for example, from German Patent Application Publication No. 102013000824. Thus, the support can be pulled out from its operating position by the operator to guide the overhead yarn guides to the splicing position. However, this type of manual operation for splicing yarn groups hinders the automation of process control and is further dependent on the individual operator and their own abilities. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] Therefore, an object of the present invention is to improve a common type of take-up winding machine so that cost-effective automation is possible, especially at the start of the process. [Means for solving the problem]

[0007] This objective is achieved, according to the present invention, in that the guiding means for moving the overhead thread guide can be coupled to a movable drive means and is operable by the movable drive means.

[0008] Advantageous improved forms of the present invention are defined by the features and combinations of features of the dependent claims.

[0009] The present invention is superior in that the separation and distribution of yarn at the start of the process can be performed by an overhead yarn guide without additional drive devices in the take-up winding machine. Therefore, this type of procedure must be performed relatively rarely during the melt spinning process, and it is known that a drive device for moving the overhead yarn guide is only required very rarely in known take-up winding machines. By using a movable drive device that can be coupled to the guide means to move the overhead yarn guide, the drive means can be used to suit the requirements.

[0010] An improved embodiment of the present invention, in which the overhead yarn guide is held in an operational position within the winding station by a guide means for connecting and disconnecting a movable drive means to automate the procedure, has been found to yield particularly good results here. In this scope, the positioning of the drive means for connecting to and disconnecting from the guide means can be done at the stationary position of the guide means. As a result, it is also possible to transmit the same procedure by the drive means at the start of each process.

[0011] Since yarn production is typically carried out at multiple spinning locations with multiple take-up winders, an improved embodiment of the present invention in which the drive means is movable by an auxiliary device so that it can be alternately coupled to multiple guide means of adjacent take-up winders is particularly advantageous. Thus, the movable drive means can be selectively fed to those take-up winders from which the process can be initiated.

[0012] To enable the supply of movable drive means to multiple take-up winders, the auxiliary device in the first alternative configuration is formed by a gantry extending over a plurality of adjacent take-up winders above the machine frame, and the drive means is displaceably held within the gantry. Thus, the drive means can be fed to each take-up winder, preferably by actuators within the gantry.

[0013] For this purpose, the drive means is preferably formed by a linear drive that can be coupled to a slide of a guide means by coupling means, the slide is coupled to an overhead yarn guide and can be guided longitudinally along the slide guide path. Since the overhead yarn guide and guide means are held above the take-up winding machine (as known), coupling means of a simple structure can be used to establish a connection between the drive means and the guide means located below the drive means.

[0014] However, alternatively, the auxiliary device may be formed by an operating robot that guides the drive means along adjacent take-up winders and positions the drive means to couple with each guide means. This type of operating robot is well known for automating the guiding of the yarn at the start of the process. In this scope, this type of operating robot can also be advantageously used to support a movable drive means and, if necessary, to couple with the guide means of the take-up winders.

[0015] A variation of the embodiment in which the driving means is formed by a rotary drive device that can be coupled to the free end of the spindle of the guide means by an operating robot is particularly advantageous here, and the spindle is connected to the overhead yarn guide via a slide guide path. Thus, for example, a simple cordless screwdriver can be used as a rotary drive device for the operating robot to drive the spindle to move the overhead yarn guide. A simple plug connector can be implemented as the coupling means to facilitate guiding and coupling of the operating robot.

[0016] An improved embodiment of the present invention is provided in which the drive means is formed by an actuation cylinder provided on an operating robot to automate a simple worker task, the actuation cylinder being connectable to the connecting end of a movable support of the coupling means, and the overhead thread guide is fixed to the support. Thus, the work required to pull out the movable support can be easily automated by the actuation cylinder provided on the operating robot.

[0017] An improved embodiment of the present invention is particularly advantageous in which an overhead thread guide provided at the winding station is formed by a rotatably mounted deflection roller, thereby ideally obtaining a gap above the take-up winding machine and repositioning the operating device when the thread is first spliced ​​to the end side of the take-up winding machine. As a result, the thread can be separated from a substantially horizontal plane.

[0018] To further illustrate the present invention, several exemplary embodiments of the take-up winding machine according to the present invention will be described in more detail below with reference to the accompanying figures. [Brief explanation of the drawing]

[0019] [Figure 1.1] This is a schematic side view of a first exemplary embodiment of a take-up winding machine according to the present invention. [Figure 1.2] Figure 1.1 is a schematic plan view of an exemplary embodiment. [Figure 1.3] This is a schematic side view of an exemplary embodiment of Figure 1.1 in a modified operating state. [Figure 2] This is a schematic side view of a further exemplary embodiment of the take-up winding machine according to the present invention. [Figure 3] This is a schematic side view of a further exemplary embodiment of the take-up winding machine according to the present invention. [Modes for carrying out the invention]

[0020] Exemplary embodiments of the take-up winding machine according to the present invention are schematically shown in several figures in Figures 1.1, 1.2, and 1.3. Figures 1.1 and 1.3 show side views of exemplary embodiments in different operating states, and Figure 1.2 shows a top view. Unless otherwise explicitly mentioned in any of the figures, the following description applies to all figures.

[0021] The take-up winder according to the present invention in this exemplary embodiment has a total of five winding stations 1.1 to 1.5 arranged side by side within a machine frame 10. The winding stations 1.1 to 1.5 are arranged longitudinally along a winding spindle 6 which is held in a protruding position. During operation, one of the threads of the yarn group 2 is wound up in each case, forming a package 8 at each winding station 1.1 to 1.5, and the packages 8 are held side by side on the winding spindle 6. The number of winding stations 1.1 to 1.5 and the number of threads in the yarn group here are exemplary. In principle, this type of take-up winder can have up to 16 winding stations. The operating state for winding the packages 8 is illustrated by dashed lines in Figure 1.1.

[0022] The take-up stations 1.1 to 1.5 have the same configuration, and in each case, they each have one yarn traversing unit 4. Each yarn traversing unit 4 here includes shedding means not shown in more detail here for guiding the yarns assigned to the take-up stations 1.1 to 1.5 back and forth in one traversing stroke. The yarn traversing unit 4 can be constituted by, for example, a reversing yarn shedding mechanism, a belt shedding mechanism, or a rotating blade shedding mechanism.

[0023] In order for the yarns of the yarn group to be wound in parallel, a winding tube 9 is assigned to each of the take-up stations 1.1 to 1.5 on the circumferential surface of a driven winding spindle 6. For this purpose, the winding tube 9 is clamped on the circumferential surface of the winding spindle 6. The winding spindle 6 extends here across the take-up stations 1.1 to 1.5, and the yarns of the take-up stations 1.1 to 1.5 are wound in parallel to form a package.

[0024] A contact pressure roller 5 that extends parallel to the winding spindle 6 and thus is assigned to the take-up stations 1.1 to 1.5 is provided for winding the yarn on the surface of the package. The 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 protrudingly attached to a winding turret 7, and this winding turret 7 is rotatably held by the machine frame 10. The winding turret 7 supports a second winding spindle 6 that is arranged to be shifted by 180° with respect to the first winding spindle 6. By rotating the winding turret 7, both winding spindles 6 can be alternately guided to the winding region and the switching region to continuously wind the yarns of the take-up stations 1.1 to 1.5 to form a package. Each winding spindle 6 and each winding turret 7 are coupled to a drive device not shown here in each case.

[0025] One overhead yarn guide 3 for receiving and separating the yarn bundle 2 between winding stations 1.1 to 1.5 is assigned to each winding station 1.1 to 1.5 so that, in each case, it is located above the yarn traverse unit 4. Thus, the overhead yarn guides 3 distributed between winding stations 1.1 to 1.5 form an entrance to each winding station 1.1 to 1.5.

[0026] Each overhead yarn guide 3 is held in place on a guide rail 13 by a movable holder 14. The guide rail 13 is positioned above the machine frame 10 and extends along the winding spindle 6 via a linear guide section. Following the linear guide section of the guide rail 13, there is a curved guide section that extends beyond the spindle end of the winding spindle 6 to the working end. The holders 14 of the overhead yarn guides 3 are connected to each other in each case, for example, by a flexible belt 15.

[0027] An overhead yarn guide 3 is assigned a guide means 12. As can be deduced from the illustrations in Figures 1.1 and 1.2, the guide means 12 in this exemplary embodiment comprises a slide guide path 12.1 and a slide 12.2 that can be guided along the slide guide path 12.1. The slide 12.2 is connected to a holder 14 of the overhead yarn guide 3 located at the first winding station 1.1. The slide guide path 12.1 extends parallel to the winding spindle 6, and the overhead yarn guide 3 is displaceable by the holder 14 on the guide rail 13 between the operating position shown in Figure 1.1 and the yarn splice position shown in Figure 1.3.

[0028] A movable drive means 18 is provided to actuate the guide means 12. The movable drive means 18 is held displaceably above the machine frame 10 by an auxiliary device 16, and the drive means 18 can be coupled 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 seen from Figure 1.2, the gantry 17 extends across a plurality of take-up winding machines. For this purpose, Figure 1.2 shows the machine frames 10' of adjacent take-up winding machines. The drive means 18 is configured to be displaceable within the gantry 17, and is configured to be alternately coupled to a plurality of guide means 12, 12' of adjacent take-up winding machines. For this purpose, the drive means 18 of the gantry 17 is displaceable laterally with respect to the direction of movement of the drive means 18.

[0029] In this exemplary embodiment, the drive means 18 is formed by a linear drive unit 19. The linear drive unit 19 is implemented as a rodless lifting cylinder held at both ends by a gantry 17. The linear drive unit 19 is assigned a guide pin, here as a coupling means 12, which can be coupled via a slide yoke 12.3 of a slide 12.2. This configuration is shown in Figure 1.1.

[0030] Figure 1.1 shows the take-up winding machine at the start of the process before the yarn bundles are first joined. The overhead yarn guide 3 for this purpose is initially held in its operating position, and the linear drive unit 19 can be coupled to the guide means 12. The operating state for winding the yarn bundles 2 to form a package 8 is shown by a dashed line in Figure 1.1.

[0031] In this exemplary embodiment, the overhead yarn guide 3 is formed by a deflection roller that is mounted to be freely rotatable in each case. For this purpose, the yarn bundle 2 can be supplied to the winding stations 1.1 to 1.5 via a godette 11 positioned laterally below the gantry 17.

[0032] When the linear drive unit 19 is activated to allow the yarn bundle 2 to be joined or separated, the slide 12.2 of the guide means 12 guides the overhead yarn guide 3 on the guide rail 13 toward the end of the winding spindle 6. As shown in Figure 1.3, the overhead yarn guide 3 is guided to the curved end of the guide rail 13. In this state, the yarn bundle 2 is guided by the suction gun 27. The yarn bundle is then deflected by the godette 11 and auxiliary roller 28 on the machine frame 10.

[0033] As shown in Figure 1.2, the overhead yarn guides are shifted by the holder 14 and guided on the guide rail 13, and 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 the yarn group 2. For this purpose, a linear drive unit 19 on the gantry 17 is activated for the return movement, guiding the slide 12.2 of the guide means 12 back to its initial position. Thus, the yarns of the winding stations 1.1 to 1.5 are assigned and can be acquired by additional auxiliary devices on the machine frame 10. The linear drive unit 19 can be detached from the guide means 12 and sent to adjacent take-up winders within the gantry 17. Within this range, the drive unit 18 can be selectively used for multiple take-up winders to perform the initial splicing of the yarn group.

[0034] The exemplary embodiments of the take-up winding machine according to the present invention shown in Figures 1.1 to 1.3 are possible modifications of the structure for guiding the mobile drive means 18. However, in principle, it is also possible to guide the drive means 18 by an operating robot. Such operating robots for performing thread guiding during the initial thread splicing in a take-up winding machine are well known and are described, for example, in International Publication No. 2019 / 001948. An alternative exemplary embodiment of the take-up winding machine according to the present invention in which the mobile drive means 18 is guided by an operating robot is shown in Figure 2.

[0035] The exemplary embodiment shown in Figure 2 is a side view at the start of the process. In this exemplary embodiment, the guide means 12 has 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. In this extent, the structure of the exemplary embodiment shown in Figure 2 is substantially identical to the structure of the exemplary embodiments shown in Figures 1.1 to 1.3. Therefore, only the differences will be described below, and other details will refer to the above description.

[0036] As already described in the context of the exemplary embodiment described above, the overhead yarn guide 3 is guided on the guide rail 13 via the holder 14. By rotating the winding spindle 24, the slide 12.2 can be moved to displace the overhead yarn guide 3. The drive means 18 for operating the guide means 12 is formed by a rotary drive 22. The rotary drive 22, which may be configured as, for example, a cordless screwdriver, is coupled to the free end of the spindle 24. The rotary drive 22 is held by the operating arm 23 of the operating robot 21 and can be operated when positioning and coupling to the spindle 24. By operating the rotary drive 22, the slide 12.2 moves via the spindle 24, and the overhead yarn guide 3 is displaced from the operating position to the yarn splice position.

[0037] To separate and distribute the thread bundles, the rotary drive unit 22 rotates in the opposite direction to its rotational direction, thereby moving the overhead thread guide 3 back to its operating position. Once the thread splicing procedure is complete, the operating robot 21 separates the rotary drive unit 22 from the spindle 24.

[0038] Figure 3 shows a further exemplary embodiment of the take-up winding machine according to the present invention, for guiding the drive means 18 by an auxiliary device in the form of an operating robot 21. Since this exemplary embodiment of the take-up winding machine is substantially identical to the above-described exemplary embodiment, only the differences will be described at this point.

[0039] In an exemplary embodiment of the take-up winding machine according to the present invention shown in Figure 3, the overhead yarn guide 3 is positioned to remain stationary on the support 25. The support 25 above the machine frame 10 is displaceably guided by a guide rail 13, which serves as a guide means 12. A coupling means 20 is provided at the free end of the support 25 on the end side of the take-up winding machine. A movable drive means 18 can be coupled to the support 25 via the coupling means 20. For this purpose, the drive means 18 is formed by an operating cylinder 26, which may be implemented, for example, by a piston rodless lifting cylinder. The coupling means 20 between the operating cylinder 26 and the support 25 can be, for example, a solenoid. Mechanical coupling means are also possible in principle.

[0040] The actuating cylinder 26 is held by a holding arm 29, for example, which is height-adjustable and held by an operating robot. Thus, the actuating cylinder 26 is guided above multiple take-up winding machines and can then be sent to each take-up winding machine as needed.

[0041] The illustrated exemplary embodiments of the take-up winding machine according to the present invention merely represent individual solutions with respect to the conceptual configuration of the present invention. In principle, the present invention covers all take-up winding machines in which other conventional drive devices for adjusting the overhead thread guide are replaced by a movable external drive. Within this scope, all movable drive devices are suitable for temporarily connecting to guide devices for moving the overhead thread guide. In this way, movable drive devices can be used in multiple take-up winding machines.

Claims

1. A take-up winding machine having a number of winding stations (1.1-1.5) for winding a number of yarns to form side-by-side parallel wound packages on a driven winding spindle (6), comprising a number of yarn traverse units (4) arranged distributed among the winding stations (1.1-1.5) and a number of overhead yarn guides (3) arranged upstream of the yarn traverse units (4), the overhead yarn guides (3) being assigned guide means (12) via which the overhead yarn guides (3) can be selectively guided to an operating position within the winding stations (1.1-1.5) or to a yarn splicing position outside the winding stations (1.1-1.5), 4. A take-up winding machine, characterized in that the guide means (12) for moving the overhead yarn guide (3) is connectable to and operable by a movable drive means (18).

2. 2. The take-up winder according to claim 1, characterized in that the overhead yarn guide (3) is held in an operating position in the winding station (1.1-1.5) by the guide means (12) for coupling and decoupling the movable drive means (18).

3. 3. A take-up winder according to claim 1 or 2, characterized in that the drive means (18) is movable 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.

4. 4. The take-up winder according to claim 3, characterized in that the auxiliary device (16) is formed by a gantry (17) extending above the machine frame (10) across adjacent take-up winders, and the drive means (18) is held displaceably within the gantry (17).

5. 5. The take-up winder according to claim 4, characterized in that the drive means (18) is formed by a linear drive (19) which can be coupled to a slide (12.2) of the guide means (12) by means of coupling means (20), the slide (12.2) being coupled to the overhead yarn guide (3) and longitudinally guideable along a slide guide path (12.1).

6. 4. A take-up winder according to claim 3, characterized in that the auxiliary device (16) is formed by an operating robot (21) which guides the drive means (18) along adjacent take-up winders and positions the drive means (18) for coupling to each of the guide means (12, 12').

7. 7. The take-up winding machine according to claim 6, characterized in that the drive means (18) is formed by a rotary drive (22) which can be coupled by the handling robot (21) to the free end of the spindle (2) of the guide means, the spindle (24) being connected to the overhead yarn guide (3) via a slide (12.2).

8. 7. A take-up winding machine according to claim 6, characterized in that the drive means (18) is formed by an actuating cylinder (26) mounted on the handling robot (21), the actuating cylinder (26) being connectable to a connecting end of a movable support (25) of the guide means (12), and the overhead yarn guide (3) being fixed to the support (25).

9. 2. The take-up winder according to claim 1, characterized in that the overhead yarn guides (3) provided at the winding stations (1.1-1.5) are formed by rotatably mounted deflection rollers.

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