Winding Machine

Abstract

The present invention relates to a winding machine having a plurality of winding stations for winding a plurality of silk threads to form a bobbin. The winding stations are arranged adjacent to each other side by side on a driven winding spindle and are each equipped with a silk thread laying unit and a suspended silk guide. The suspended silk guide is movably held by a guide mechanism and can be selectively guided to a working position within the winding station and a yarn joining position outside the winding station. In order to save a drive mechanism on the winding machine, the guide mechanism for moving the suspended silk guide can be connected to a mobile drive mechanism and actuated thereby according to the present invention.

Description

Technical Field

[0001] The invention relates to a winding machine according to the first aspect of the invention having a plurality of winding stations for winding a plurality of threads to form bobbins. Background Art

[0002] A winding machine of the type mentioned in the introduction is known, for example, from WO 2016 / 180679 A1.

[0003] Known winding machines are used for winding a thread sheet produced by melt spinning. The threads of the thread sheet are wound parallel to each other on a driven winding spindle to form a bobbin. For this purpose, the winding machine has a plurality of winding stations arranged along a winding bobbin held in a protruding manner. The winding spindle is used to receive the bobbin in order to wind the latter simultaneously. The thread laying takes place in the form of a so-called cross-winding, so that each thread is guided individually in a reciprocating manner through a thread laying unit in the winding station before being moved onto the bobbin surface. The feeding into the winding station and the separation of the thread sheet take place using so-called suspended thread guides, which are formed in the known winding machines by freely rotatable deflection rollers to reduce thread friction. Each deflection roller here forms a traversing plane together with the corresponding thread laying unit, in which the thread is guided in a reciprocating manner.

[0004] At the beginning of the working process, the thread sheet guided by the suction jet is usually separated and distributed between the winding stations of the winder. For this purpose, the suspended thread guide arranged above the thread laying unit in the known winding machine is held movably by a guiding mechanism. The suspended thread guide can then be guided between a working position above the thread laying unit and a yarn joining position, which is located outside the winding station at the free end of the winding spindle. For this purpose, the guiding mechanism is equipped with a linear drive mechanism, which moves a plurality of suspended thread guides connected to each other in the slide guide rails. As soon as the separation of the thread sheet between the suspended thread guides held in the yarn joining position has occurred, the linear drive mechanism is actuated again to return the suspended thread guide to its working position.

[0005] However, in order to save the drive mechanism for moving the suspended yarn guide in the winding station for cost reasons, winding machines are already known in the prior art, in which the displacement of the suspended yarn guide is carried out by the operator. Thus, for example, DE 10 2013 000 824 A1 discloses a winding machine in which the suspended yarn guide is arranged on a mobile support with a handle at the free end. The support can then be pulled out of the working position by the operator in order to guide the suspended yarn guide to the yarn splicing position. However, this manual task for splicing the yarn pieces hinders the automation of process management and is also dependent on the respective operator and his or her abilities. Summary of the invention

[0006] It is therefore the object of the present invention to improve a winding machine of the type mentioned at the outset so that cost-effective automation can be achieved, in particular at the start of the working process.

[0007] According to the invention, this object is achieved in that a guide mechanism for moving the suspended yarn guide can be engaged with and actuated by the movable drive mechanism.

[0008] Advantageous developments of the invention are defined by the features and feature combinations of the further aspects of the invention.

[0009] The distinguishing feature of the invention is that the separation and distribution of the threads at the beginning of the working process can take place by means of the suspended thread guides without the need for an additional drive mechanism on the winder. It is therefore known that such working processes have to be carried out relatively rarely in melt spinning processes, so that in known winders only a drive mechanism for moving the suspended thread guides is relatively rarely required. By using a mobile drive mechanism that can be connected to the guide mechanism for moving the suspended thread guides, the drive mechanism to be used can meet the requirements.

[0010] In order to automate the working process, the following modification of the invention has proven to be particularly successful, in which the suspended thread guide is held in a working position in the winding station by a guide mechanism for engaging and disengaging the mobile drive mechanism. In this regard, the drive mechanism can be positioned in a fixed position of the guide mechanism so as to be engaged or disengaged relative to the guide mechanism. As a result, the same working process can also be switched by the drive mechanism at the beginning of each process.

[0011] The production of the yarn usually takes place in a plurality of spinning positions with a plurality of winding machines, so that the following refinement of the invention is particularly advantageous, in which the drive mechanism is movable by means of an auxiliary device, so that the drive mechanism can be engaged in an alternating manner to a plurality of guide mechanisms of adjacent winding machines. The mobile drive mechanism can then be selectively guided to those winding machines at which the start of the process can be carried out.

[0012] In order to be able to provide the mobile drive mechanism for a plurality of winding machines, the auxiliary device is formed in a first alternative by a gantry, which extends above the frame across a plurality of adjacent winding machines, and the drive mechanism is movably held in the gantry. The drive mechanism can then preferably be guided to the respective winding machine by an actuator in the gantry.

[0013] For this purpose, the drive mechanism is preferably formed by a linear drive mechanism, which can be coupled to a slide of a guide mechanism by means of a coupling mechanism, wherein the slide is coupled to a suspended yarn guide and can be longitudinally guided along the slide guide rail. Since the suspended yarn guide and the guide mechanism are held on the upper side of the winding machine (as is known), a structurally simple coupling mechanism can be used to create a connection between the drive mechanism and the guide mechanism arranged below the drive mechanism.

[0014] Alternatively, however, the auxiliary device can also be formed by a handling robot, which guides the drive mechanism along the adjacent winding machine and positions the drive mechanism for engagement with the respective guide mechanism. Such handling robots are well known for automating the thread guidance at the beginning of the processing process. In this regard, such handling robots can also be used advantageously to carry the mobile drive mechanism and, if necessary, to connect the guide mechanism of the winding machine.

[0015] In this case, the following variant embodiment is particularly advantageous, in which the drive mechanism is formed by a rotary drive mechanism by means of which the handling robot can be coupled to the free end of the spindle of the guide mechanism, wherein the spindle is connected to the suspended wire guide via a slide guide. For example, a simple cordless screwdriver can then be used as a rotary drive mechanism to drive the spindle of the handling robot to move the suspended wire guide. A simple plug connection that facilitates the guidance and coupling of the handling robot can be implemented as a coupling mechanism.

[0016] In order to automate the simple tasks of the operator, the following improvement of the invention is provided, in which the drive mechanism is formed by an actuating cylinder on the handling robot, which can be coupled to the coupling end of the movable support of the coupling mechanism, wherein the suspended wire guide is fastened to the support. The task required for extracting the movable support can then be automated in a simple manner by means of the actuating cylinder on the handling robot.

[0017] In order to obtain a clearance preferably above the winding machine and to transfer the working capacity at the beginning of the thread splicing to one end side of the winding, the following refinement of the invention is particularly advantageous, in which the suspended thread guide in the winding station is formed by a rotatably mounted deflection roller. As a result, the thread can be separated from the essentially horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to further explain the present invention, some embodiments of the winding machine of the present invention will now be explained in more detail with reference to the accompanying drawings, in which:

[0019] Figure 1.1 Schematically shows a side view of a first embodiment of a winding machine according to the present invention;

[0020] Figure 1.2 Schematically shown Figure 1.1 A plan view of an embodiment of the present invention;

[0021] Figure 1.3 Schematically shows the working state of the Figure 1.1 A side view of an embodiment of the present invention;

[0022] Figure 2 A side view schematically showing another embodiment of a winding machine according to the present invention; and

[0023] Figure 3 A further embodiment of a winding machine according to the invention is schematically shown in a side view. DETAILED DESCRIPTION

[0024] An embodiment of the winding machine according to the invention is Figure 1.1 , Figure 1.2 , Figure 1.3 It is schematically shown in multiple views. Figure 1.1 and Figure 1.3 The embodiment is shown in side view in different working states, and Figure 1.2 The following description applies to all figures unless specific reference is made to any one of the figures.

[0025] The winding machine according to the invention has in this embodiment a total of five winding stations 1.1-1.5, which are arranged adjacent to each other in a frame 10. The winding stations 1.1-1.5 are arranged longitudinally along the winding spindle 6 held in a protruding manner. During operation, a wire of the wire sheet 2 is wound into a bobbin 8 in each winding station 1.1-1.4, wherein the bobbin 8 is held adjacent to each other on the winding spindle 6. The number of winding stations 1.1-1.5 and the number of wires of the wire sheet are exemplary here. In principle, such a winding machine can have up to 16 winding stations. The working state for winding the bobbin 8 is Figure 1.1 Indicated by dotted line.

[0026] The winding stations 1.1-1.5 have the same configuration and each have a wire laying unit 4. Each wire laying unit 4 is equipped with a traversing mechanism, not shown in more detail here, in order to guide the wire assigned to the winding station 1.1-1.5 in a reciprocating manner within a wire laying stroke. The wire laying unit 4 can be configured, for example, by a reversing wire traversing mechanism, a belt traversing mechanism or a rotating disc traversing mechanism.

[0027] In order for the threads of the thread sheet to be wound in parallel, each winding station 1.1-1.5 is assigned a winding tube 9 on the circumference of the driven winding spindle 6. For this purpose, the winding tube 9 is clamped on the circumference of the winding spindle 6. The winding spindle 6 here extends across the winding stations 1.1-1.5, so that the threads are wound in parallel into bobbins in the winding stations 1.1-1.5.

[0028] A contact pressure roller 5 extending parallel to the winding spindle 6 and therefore assigned to the winding stations 1.1-1.5 is provided for dropping the thread onto the bobbin surface. The contact pressure roller 5 is arranged in the area between the thread laying unit 4 and the winding spindle 6. The frame 10 is used to accommodate and fix the thread laying unit 4, the contact pressure roller 5 and the winding spindle 6. The winding spindle 6 is mounted in a protruding manner on the winding turntable 7, which is in turn rotatably retained in the frame 10. The winding turntable 7 supports the second winding spindle 6, which is arranged 180° offset relative to the first winding spindle 6. By rotating the winding turntable 7, both winding spindles 6 can be alternately guided to the winding area and the replacement area, so that the thread can be continuously wound into a bobbin in the winding stations 1.1-1.5. The winding spindle 6 and the winding turntable 7 are both connected to a drive mechanism not shown here.

[0029] A suspended wire guide 3 for accommodating and separating the wire sheets 2 between the winding stations 1.1-1.5 is allocated to each winding station 1.1-1.5 in a form higher than the wire laying unit 4. The suspended wire guides 3 distributed between the winding stations 1.1, 1.5 thus form the entrance to the respective winding stations 1.1-1.5.

[0030] Each suspended yarn guide 3 is held on a guide rail 13 by a movable support 14. The guide rail 13 is placed above the frame 10 and extends along the winding spindle 6 with a straight guide portion. The straight guide portion of the guide rail 13 is followed by a curved guide portion, which extends beyond the spindle end of the winding spindle 6 to the operating end. The supports 14 of the suspended yarn guides 3 are all connected to each other like a flexible belt 15.

[0031] The suspended wire guide 3 is assigned a guide mechanism 12. Figure 1.1 and Figure 1.2 As can be seen from the figure, the guide mechanism 12 in this embodiment has a slide rail 12.1 and a slide 12.2 that can be guided along the slide rail 12.1. The slide 12.2 is connected to the support 14 of the suspended yarn guide 3 located in the first winding station 1.1. The slide rail 12.2 extends parallel to the winding spindle 6, so that the suspended yarn guide 3 can be moved in the guide rail 13 by means of the support 14. Figure 1.1 The working position shown is similar to Figure 1.3 Move between the indicated yarn joining positions.

[0032] The mobile drive mechanism 18 is provided for actuating the guide mechanism 12. The mobile drive mechanism 18 is movably held above the frame 10 by means of an auxiliary device 16, so that the drive mechanism 18 can be coupled to the guide mechanism 12 by means of a coupling mechanism 20. In a specific embodiment, the auxiliary device 16 is formed by a gantry 17 extending above the frame 10. Figure 1.2 As can be seen from the diagram of FIG, the gantry 17 extends across a plurality of winding machines. Figure 1.2 The frame 10' of an adjacent winding machine is shown. The drive mechanism 18 is designed to be movable in the gantry 17 so that the drive mechanism 18 can be engaged to a plurality of guide mechanisms 12, 12' of an adjacent winding machine in an alternating manner. To this end, the drive mechanism 18 is displaced in the gantry 17 transversely to the direction of movement of the drive mechanism 18.

[0033] The drive mechanism 18 is formed in this embodiment by a linear drive mechanism 19. The linear drive mechanism 19 is realized in the form of a rodless lifting cylinder, which is held at both ends by the gantry 17. Here, the linear drive mechanism 19 is assigned as a guide pin for the coupling mechanism 12, which can be connected by means of the slide yoke 12.3 of the slide 12.2. Figure 1.1 This situation is shown in .

[0034] Winding machine Figure 1.1 The figure is shown at the beginning of the process before the yarn sheet begins to be joined. To this end, the suspended yarn guide 3 is first kept in its working position so that the linear drive mechanism 19 can be engaged to the guide mechanism 12. Figure 1.1 The working state of the thread sheet 2 for forming the bobbin 8 is shown by the dotted line.

[0035] The suspended yarn guide 3 is formed in this embodiment by a plurality of deflection rollers which are all freely rotatably mounted. To this end, the yarn sheet 2 can be supplied to the winding station 1.1-1.5 by means of the transversely arranged guide rollers 11 below the gantry 17.

[0036] In order to allow the yarn sheet 2 to be joined and separated, the linear drive mechanism 19 is actuated so that the slide 12.2 of the guide mechanism 12 guides the suspended yarn guide 3 in the guide rail 13 to the end side of the winding spindle 6. The suspended yarn guide 3 is guided to the curved end of the guide rail 13, such as Figure 1.3 The wire sheet 2 is guided in this case by a suction gun 27 . The wire sheet is deflected here by guide rollers 11 and auxiliary rollers 28 on the machine frame 10 .

[0037] like Figure 1.2 As shown in the figure, the suspended yarn guides are offset and guided on the guide rails 13 by the supports 14, so that when the suspended yarn guides 3 move back from the yarn joining position to the working position, each suspended yarn guide 3 grabs a yarn in the yarn sheet 2. To this end, the linear drive mechanism 19 on the gantry 17 is actuated to achieve the return movement and guide the slide 12.2 of the guide mechanism 12 back to the initial position. Then, the yarns are distributed in the winding stations 1.1-1.5 and can be obtained by additional auxiliary devices on the frame 10. The linear drive mechanism 19 is separated from the guide mechanism 12 and can pass to the adjacent winding machine in the gantry 17. In this regard, the drive mechanism 18 can be optionally used for multiple winding machines so that the initial yarn joining of the yarn sheet can be performed.

[0038] like Figure 1.1 to Figure 1.3 The embodiment of the winding machine according to the invention shown is a potential possible variant of the structure for guiding the mobile drive mechanism 18. However, in principle, the drive mechanism 18 can also be guided by a handling robot. Such handling robots for performing thread guidance in winding machines during the initial yarn joining process are well known and are described, for example, in WO 2019 / 001948 A1. Figure 2 An alternative embodiment of the winding machine according to the invention is shown, in which the mobile drive 18 is guided by a handling robot.

[0039] according to Figure 2 The embodiment of is shown in a side view at the beginning of the process. In this embodiment, the guide mechanism 12 has a rotatably mounted spindle 24, which is 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 regard, according to Figure 2 The structure of the embodiment is basically the same as that according to Figure 1.1 to Figure 1.3 Therefore, only the differences will be explained below and reference will be made to the above description otherwise.

[0040] As already described in the context of the previous embodiment, the suspended yarn guide 3 is guided in the guide rail 13 by the support 14. By rotating the winding spindle 24, the slide 12.2 can be moved to displace the suspended yarn guide 3. The drive mechanism 18 for actuating the guide mechanism 12 is formed by a rotary drive mechanism 22. The rotary drive mechanism 22, which can be designed as a cordless screwdriver, is engaged to the free end of the spindle 24, for example. The rotary drive mechanism 22 is held by the operating arm 23 of the operating robot 21 and can be actuated when positioned and engaged to the spindle 24. By actuating the rotary drive mechanism 22, the slide 12.2 is moved by means of the spindle 24, so that the suspended yarn guide 3 is moved from the working position to the yarn joining position.

[0041] In order to separate and distribute the thread sheet, the rotary drive mechanism 22 is turned around with regard to its rotation direction so that the suspended yarn guide 3 moves back to the working position. Once the yarn joining process is finished, the rotary drive mechanism 22 is separated from the spindle 24 by the operating robot 21.

[0042] Figure 3 A further embodiment of a winding machine according to the invention is shown for guiding the drive mechanism 18 by means of an auxiliary device in the form of a handling robot 21. This embodiment of the winding machine is substantially identical to the above-described embodiment, so that only the differences will be explained here.

[0043] In such Figure 3In the embodiment of the winding machine according to the invention shown, the suspended yarn guide 3 is fixedly arranged on a support 25. The support 25 is movably guided in a guide rail 13 as a guide mechanism 12 above the frame 10. The coupling mechanism 20 is arranged on the free end of the support 25 at the end side of the winding machine. The mobile drive mechanism 18 can be connected to the support 25 via the coupling mechanism 20. For this purpose, the drive mechanism 18 is formed by an actuating cylinder 26, which may be realized, for example, by a piston rodless lifting cylinder. The coupling mechanism 20 between the actuating cylinder 26 and the support 25 can be formed, for example, by a solenoid. Mechanical coupling mechanisms would also be feasible in principle.

[0044] The actuating cylinder 26 is held, for example, on a holding arm 29 which is held on a handling robot in a manner that it can be raised and lowered. The actuating cylinder 26 can then be guided over a plurality of winding machines so as to pass to the respective winding machine as required.

[0045] The embodiment of the winding machine according to the invention shown in the figure represents only individual solutions with regard to the structure of the inventive concept. In principle, the invention covers all winding machines in which the conventional drive mechanism for adjusting the suspended yarn guide is replaced by a mobile external drive mechanism. In this regard, all transportable drive mechanisms are suitable for temporary connection to the guide mechanism for moving the suspended yarn guide. In this way, the mobile drive mechanism can be used for a plurality of winding machines.

Claims

1. A winding machine, comprising a plurality of winding stations (1.1-1.5) for winding a plurality of threads to form bobbins, wherein the bobbins are wound side by side and in parallel on a driven winding spindle (6), the winding machine further comprising a plurality of thread laying units (4) and a plurality of suspended thread guides (3) arranged upstream of the thread laying units (4), wherein the plurality of thread laying units (4) are dispersedly arranged between the winding stations (1.1-1.5), in, The suspended yarn guide (3) is assigned a guiding mechanism (12), by means of which the suspended yarn guide (3) can be selectively guided to a working position within the winding station (1.1-1.5) or a yarn joining position outside the winding station (1.1-1.5), Its characteristics are: The guide mechanism (12) for moving the suspended wire guide (3) can be coupled to and actuated by an external movable drive mechanism (18), wherein the external movable drive mechanism (18) is a separate drive mechanism for moving the suspended wire guide (3).

2. The winding machine according to claim 1, Its characteristics are: In order to engage and disengage the external mobile drive mechanism (18), the suspended yarn guide (3) is held in a working position in the winding station (1.1-1.5) by means of the guide mechanism (12).

3. The winding machine according to claim 1, Its characteristics are: The external mobile drive mechanism (18) is movable by means of an auxiliary device (16) so that the external mobile drive mechanism (18) can be engaged to a plurality of guide mechanisms (12, 12') of adjacent winding machines in an alternating manner.

4. The winding machine according to claim 3, Its characteristics are: The auxiliary device (16) is formed by a gantry (17) extending above the frame (10) of the winding machine across a plurality of adjacent winding machines, and the external mobile drive mechanism (18) is held in the gantry (17) in a displaceable manner.

5. The winding machine according to claim 4, Its characteristics are: The external movable drive mechanism (18) is formed by a linear drive mechanism (19), and the linear drive mechanism (19) can be connected to the slide (12.2) of the guide mechanism (12) by means of a connection mechanism (20), wherein the slide (12.2) is connected to the suspended wire guide (3) and can be guided longitudinally along the slide guide rail (12.1).

6. The winding machine according to claim 3, Its characteristics are: The auxiliary device (16) is formed by a handling robot (21) which guides the external mobile drive mechanism (18) along adjacent winding machines and positions the external mobile drive mechanism (18) for engagement with the corresponding guide mechanism (12, 12').

7. The winding machine according to claim 6, Its characteristics are: The external mobile drive mechanism (18) is formed by a rotary drive mechanism (22), which can be connected to the free end of the spindle (24) of the guide mechanism with the help of the operating robot (21), wherein the spindle (24) is connected to the suspended wire guide (3) via a slide (12.2).

8. The winding machine according to claim 6, Its characteristics are: The external mobile drive mechanism (18) is formed by an actuating cylinder (26) on the operating robot (21), and the actuating cylinder (26) can be coupled to the coupling end of the movable bracket (25) of the guiding mechanism (12), wherein the suspended wire guide (3) is fastened to the bracket (25).

9. The winding machine according to any one of claims 1 to 8, Its characteristics are: The suspended yarn guide (3) is formed in the winding station (1.1-1.5) by a rotatably mounted deflection roller.

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