JP7401684B2 - winding machine - Google Patents

Description

The present invention relates to a winding machine with a plurality of winding units for winding a plurality of threads into packages.

In the melt-spinning process, the yarns formed as yarn groups are wound into packages in parallel at the end of the process. For this purpose, a winding machine with a plurality of winding units is used, which winding units are formed on the machine frame along a cantilevered winding spindle. The winding spindle serves to accommodate the packages so that they can be wound simultaneously. Since the winding of the yarn is carried out in a so-called traverse manner, each yarn is individually guided back and forth within the winding unit using a yarn traversing unit before it runs onto the package surface. The supply to the winding unit and the separation of the thread groups takes place via a plurality of so-called top thread guides, which are arranged in each case upstream of the thread traversing unit in the winding unit. In this way, a so-called traversing triangle is formed between the top yarn guide and the yarn traversing unit arranged downstream, in which the yarn is guided.

In order to be able to distribute and thread the threads of the yarn group into the winding unit of the winding machine at the start of the process, the yarn group is usually first guided via a movable suction injector, which brings the yarn to the top. It can be prepared for insertion into the thread guide. Basically, two variants of winders are distinguished.

In one of the two variants, a movable auxiliary device is used to guide the thread and insert it into the top thread guide. Such winders are known, for example from WO 98/28217 or EP 2 497 732 A1. In these known winding machines, the auxiliary device is formed by a movable thread guide with a plurality of guide grooves arranged next to one another. The threading thread guide is used to receive the thread group guided by the suction injector at the start of the process, to individualize it by movement along the guide track and to pass it on to the top thread guide. Such an arrangement requires relatively complex guide tracks and drives to achieve thread group separation and threading. Such auxiliary equipment is therefore particularly prone to failure.

Another variant of the winder eliminates the need for additional movable auxiliary devices for separating and threading the thread. Such a winder is known, for example, from DE 10 2014 220 875 A1. In this known winding machine, the top thread guide is movably held on a guide rail and is arranged to thread from an operating position within the range of the winding unit to an end face end of the winding machine outside the range of the winding unit. can be guided to the location. In the threading position, the top thread guides are positioned side by side at a short distance from each other for threading the thread.

However, when manufacturing synthetic yarns, it is desirable to simultaneously wind as many yarns as possible with one winder. It is therefore necessary to move a number of top thread guides from their operating position to the threading position. However, it must be taken into account in this case that the top thread guide for separating and threading the threads of the thread group is kept as close as possible to the operating end of the winder. In the winding machine described at the outset, the top thread guides must be arranged close to each other and in line with one another, so that the separation and insertion of the thread into the top thread guide at a large distance from the working end can only be done by an auxiliary device. It is possible only by

SUMMARY OF THE INVENTION It is therefore an object of the present invention to improve the winding machine of the type described at the outset so that the separation and insertion of the threads of the thread group into the top thread guide can be operated as simply as possible and can also be done manually or automatically. The objective is to make it possible to implement even if

According to the invention, the guide rail has at least one straight guide section along the winding spindle and a curved guide section in order to guide the top thread guide. The curved guide section of the rail extends beyond the spindle end of the winding spindle.

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

The invention thus has the particular advantage that the top thread guide can be held on the guide rail with a height offset relative to one another with respect to its threading position. This also advantageously avoids a protrusion of the guide rail into the operating channel. The curvature of the guide rail allows the top thread guide to be transferred, for example, from a horizontally oriented row-like operating position to an at least partially vertically oriented threading position. In particular, the curvature of the guide rails creates an offset between the top thread guides that facilitates thread separation and threading.

In order to arrange a number of top thread guides in their threading position, the guide rail further has a straight guide end section at one end of the curved guide section, the straight guide end section being It is specified to have a stop for one of the top thread guides for the threading position. With this configuration, the top thread guide can be positioned at the threading position.

For the movement and guidance of the top thread guide, in a particularly advantageous development of the invention, a separate guide carriage of a plurality of guide carriages is assigned to each top thread guide of the top thread guide, and these The guide carriages are guided by guide rails and connected to each other by flexible belts, the lengths of which are designed to correspond to the distance between adjacent winding units. With this arrangement, all top thread guides can be moved together along the guide rail by actively moving the first top thread guide or the last top thread guide by means of the guide carriage. In this way, all top thread guides can be moved together along the guide rail by the flexible connection of the guide carriage. The elasticity of the belt allows, on the one hand, the positioning of the top thread guide in the operating position when the belt is pulled out, and on the other hand, the collection of the top thread guide in the threading position when the belt is flexed in a wave-like manner. enable.

The operating position of the top thread guide can preferably be realized by a second stop, which is formed at the free end of the straight guide section of the guide rail.

In order to enable automatic separation and insertion of the thread groups by the movement of the top thread guide during the transition from the threading position to the operating position, in a particularly advantageous development of the invention, the top thread guides each include: It is formed by a freely rotatable deflection roller with an open yarn running groove, which deflection roller is held cantilevered on the guide carriage by holding webs of different lengths. With this embodiment, holding webs of different lengths make it possible to generate a deviation between the deflection rollers that corresponds to the thread spacing of adjacent threads in a thread group. In this way, each deflection roller of the deflection rollers can receive the yarn corresponding to the winding unit from one yarn group.

To this end, the straight guide section of the guide rail ensures that the deflection rollers are held in a plane parallel to the spindle axis in the operating position, despite the respective different holding webs, relative to the spindle axis of the winding spindle. It is placed diagonally so that it looks like it is. With this arrangement, it is ensured that each of the winding units continues to guarantee an equal relationship when winding the thread onto the package.

In order to create a defined thread spacing in the yarn group, at which the deflection roller moves inward, in a preferred embodiment of the invention, a freely rotatable and stationary guide roller is provided for guiding the yarn group. A guide roller is provided which, for thread separation and threading, is assigned to a deflection roller held in a threading position.

In this configuration, a driven godet is disposed upstream of the guide roller, and the godet and the guide roller control the yarn running plane of the yarn group in the area between the operating position of the deflection roller and the threading position. By unrolling, the thread groups can be particularly advantageously stretched with a defined thread spacing of the threads adjacent to each other.

In order to automate the insertion, in a development of the invention an actuator is assigned to one of the outer top thread guides, by means of which the top thread guide can be guided into the guide rail. Something has been identified.

The actuator is preferably formed by a linear drive, for example a cylinder without a piston rod.

The actuator can also be controlled by a control device, which is connected to a control device or to at least one operating tablet.

In order to further explain the invention, one embodiment of a winder according to the invention will now be described in detail with reference to the accompanying figures.

1 is a side view schematically showing an embodiment of a winder according to the present invention; FIG. FIG. 2 is a plan view schematically showing the embodiment shown in FIG. 1; FIG. 2 is a front view schematically showing the embodiment shown in FIG. 1; 2 schematically shows a side view of a part of the embodiment shown in FIG. 1 in one operating situation; FIG. 2 schematically shows a side view of a part of the embodiment shown in FIG. 1 in another operating situation; FIG. 2 is a schematic plan view of a part of the embodiment shown in FIG. 1 in one operating situation; FIG. 2 is a schematic plan view of a part of the embodiment shown in FIG. 1 in another operating situation; FIG. 2 is a plan view schematically showing the top thread guide of the first winding unit of the embodiment shown in FIG. 1; FIG.

1, 2 and 3 schematically show an embodiment of a winder according to the invention in several views. The embodiment is shown in side view in FIG. 1, in plan view in FIG. 2 and in front view in FIG. Unless explicitly referred to one of the figures, the following description refers to all of the figures.

The winding machine according to the present invention has a total of five winding units 1.1 to 1.5 in this embodiment, and these winding units 1.1 to 1.5 are arranged side by side with each other. It is formed in the machine frame 10. The winding units 1.1 to 1.5 are arranged along a cantilevered winding spindle 6. In each of the winding units 1.1 to 1.5, one thread of the thread group 2 is wound into a package 8, which packages 8 are held next to each other on the winding spindle 6. . The number of winding units 1.1 to 1.5 and the number of threads in thread group 2 are given here by way of example. Basically, such a winding machine can have up to 16 winding units.

The winding units 1.1 to 1.5 are of identical design and each have one yarn traversing unit 4. Each yarn traversing unit of the yarn traversing unit 4 includes guide means, not shown in detail here, in order to reciprocate the yarn assigned to the winding units 1.1 to 1.5 within the traversing stroke. I'm here. The yarn traversing unit 4 may be formed by, for example, a shaft type traversing mechanism with a reversing guide groove, a belt type traversing mechanism, or a wing type traversing mechanism.

In order to wind the yarns of yarn group 2 in parallel, each of the winding units 1.1 to 1.5 is assigned a winding tube 9 which is arranged around a driven winding spindle 6. It is being For this purpose, the winding tube 9 is tightened around the winding spindle 6. The winding spindle 6 extends over all the winding units 1.1 to 1.5, so that the yarn is wound into the package 8 in parallel in the winding units 1.1 to 1.5.

In order to lower the thread onto the surface of the package, a pressure roller 5 is provided, which extends parallel to the winding spindle 6 and which allows the winding units 1.1 to 1 to .5. The pressing roller 5 is formed in a region between the yarn traversing unit 4 and the winding spindle 6. The machine frame 10 serves to accommodate and secure the thread traversing unit 4, the pressure roller 5 and the winding spindle 6. The winding spindle 6 is cantilevered on a winding turret 7, which itself is rotatably held on a machine frame 10. The winding turret 7 holds a second winding spindle 6 which is arranged offset by 180° with respect to the first winding spindle 6 . The two winding spindles 6 can be guided alternately into a winding region and a changing region by the rotation of a winding turret 7, so that the yarn can be successively rolled into packages 8 in the winding units 1.1 to 1.5. It can be wound into . The winding spindle 6 and the winding turret 7 are each connected to a drive (not shown here).

In order to accommodate and separate the thread groups 2 in the winding units 1.1 to 1.5, each winding unit 1.1 to 1.5 has one top thread above the thread traversing unit 4. Guide 3 is assigned. The top yarn guides 3 distributed to the winding units 1.1 to 1.5 thereby form an entry path to the respective winding unit 1.1 to 1.5.

Each top thread guide of the top thread guides 3 is held on a guide rail 14 by a movable guide carriage 16. The guide rail 14 is arranged above the machine frame 10 and has a straight guide section 14.1 extending along the winding spindle 6. The straight guide section 14.1 is followed by a curved guide section 14.2 of the guide rail 14, which curved guide section 14.2 extends beyond the spindle end of the winding spindle 6 to the operating end. It extends towards. The curved guide section 14.2 is followed by a straight guide end section 14.3, which is oriented approximately 90° offset relative to the straight guide section 14.1. It is attached. A first stop 15.1 is formed in the guide end section 14.3 of the guide rail 14. At the free end of the guide rail 14 located opposite the straight guide section 14.1, a second stop 15.2 is provided. Thereby, the top thread guide 3 can be guided back and forth between the operating position and the threading position by the movement of the guide carriage 16 along the guide rail 14. 1, 2 and 3 the top thread guide 3 is shown in its operating position.

The top thread guide 3 is formed in this embodiment by a freely rotatably supported deflection roller 13 in each case. For purposes of explanation, reference is further made to FIG. 6, which shows a top view of the top thread guide 3 in the first winding unit 1.1. The deflection roller 13 has an open thread running groove 13.1 on its periphery, in which a thread of the thread group can be partially wound and guided.

The deflection roller 13 is connected to the guide carriage 16 by means of a retaining web 17 . At this time, the lengths of the holding webs 17 of the deflection rollers 13 are different from each other, as is clear from the illustration in FIG. That is, the holding webs 17 in the winding unit 1.1 have a greater length than the holding webs 17 in the adjacent winding units 1.2 to 1.5. The difference in length of the retaining webs 17 is designed in accordance with the thread spacing of the threads in the thread group 2, so that during the movement of the deflection roller 13 from the respective threading position to the operating position, the deflection roller Each of the 13 deflection rollers receives one thread separately from the thread group 2. In order to orient the deflection roller 13 parallel to the spindle axis 6.1 of the winding spindle 6 in its operating position, the straight guide section 14.1 of the guide rail 14 is aligned parallel to the spindle axis 6.1 of the winding spindle 6. 6.1. In FIG. 2, the angle between the guide rail 14 and the spindle axis 6.1 is designated by α.

In this example, the guide carriage 16 of the winding unit 1.1 is connected to an actuator 20. This actuator 20 is formed by a cylinder without a piston rod, which extends parallel to the straight guide section 14.1 of the guide rail. The actuator 20 is connected to a control device 21 that can be controlled via an operation tablet 23. The actuator 20 may be formed, for example, by an electric linear drive, which extends parallel to the guide rail 14 and drives the guide carriage 16 of the winding unit 1.1. Exercise. The actuator 20 and the guide rail 14 are supported by the machine frame 10 via a holder 25.

As can be seen in FIG. 1, the guide carriages 16 are each connected to one another by a flexible belt 18. The length of the flexible belt 18 is dimensioned such that in the extended state the respective guide carriage 16 is in the operating position of the respective top thread guide 3 in the winding units 1.1 to 1.5. ing.

Upstream of the deflection roller 13, a godet 11 is arranged in the yarn running path. The godet 11 is held by a godet holder 12 and connected to a drive device (not shown here). The godet holder 12 is held on the protruding end of the winding spindle 6, flanking the winding units 1.1 to 1.5. The godet holder 12 may be supported on the machine frame 10 .

In the embodiment of the winding machine according to the invention shown in FIGS. 1 to 3, one yarn of each yarn group 2 is continuously wound onto a package 8 in each winding unit 1.1 to 1.5. be done. However, at the start of the process or during a process interruption, it is necessary to thread the yarn group 2 into the winding units 1.1 to 1.5. In order to be able to carry out this process, a guide roller 19 is disposed in the machine frame 10 and is freely rotatably supported below the top yarn guide 3. The guide roller 19 has a developed yarn running path plane formed between the godet 11 and the guide roller 19, and this yarn running path plane crosses the movement trajectory of the top yarn guide 3 and is aligned with the operating position of the top yarn guide 3 and the yarn threading. It is arranged so that it is located between the Thereby, the guide roller 19 is used exclusively for accommodating the yarn group during separation of the yarn and during insertion of the yarn into the top yarn guide 3.

For further explanation, reference is also made to FIGS. 4.1, 4.2, 5.1 and 5.2. 4.1 and 4.2 show part of the side view of the embodiment shown in FIG. 1 in different operating states; and the diagram shown in FIG. 4.2 is shown in plan view.

In the operating state shown in FIGS. 4.1 and 5.1, the thread group 2 is guided by the suction injector 24 in order to be able to separate it and pass it into the top thread guide 3. For this purpose, the top thread guide 3 is guided by a guide carriage 16 to its respective threading position outside the winding units 1.1 to 1.5. To this end, the guide carriage 16 of the winding unit 1.1, which is connected to the actuator 20, is guided by the actuator 20 along a straight guide section 14.1 of the guide rail 14. Adjacent guide carriages 16 are moved in this case, and the distance between the guide carriages 16 is in each case reduced to a minimum due to the elasticity of the belt 18. In this way, all guide carriages 16 are moved into the curved guide section 14.2 of the guide rail 14 until the guide carriage 16 of the winding unit 1.5 reaches the stop 15.1 at the guide end section 14.3. will be moved. This situation is illustrated in Figures 4.1 and 5.1. As soon as the top thread guide 3 is held in the threading position, the thread group 2 is threaded by the suction injector 24 onto the godet 11 and around the guide roller 19 . The guide roller 19 together with the godet 11 develops a thread running plane through which the top thread guide 3 is moved from its threading position to its operating position. For this purpose, guide roller 19 is held in machine frame 10 substantially axially parallel to deflection roller 13 . The guide roller 19 has a guide groove around its periphery that forms a yarn convergence point. In this way, the thread extends radially from the circumference of the godet 11 towards the guide roller 19. The guide roller 19 is arranged below the direction changing roller 13 at a set interval. As a result, a defined mutual spacing between the yarns is established in the yarn group in the area of the deflection roller 13.

As can be seen in particular from the representation in FIGS. 5.1 and 5.2, the deflection roller 13 is connected to the guide carriage 16 by means of retaining webs 17 formed in different lengths. Furthermore, the straight guide section 14.1 of the guide rail 14 is arranged at an angle to the spindle axis 6.1. As a result, the deflection roller 13 collides with the yarn group 2 guided between the godet 11 and the guide roller 19 with a deviation. Since the magnitude of this deviation is equal to the thread spacing of the threads in the thread group 2, the movement of the guide carriage 16 causes each deflection roller of the deflection rollers 13 to receive one of the threads of the thread group 2; Guide to winding units 1.1 to 1.5. To this end, the guide carriage 16 of the winding unit 1.1 is guided back in the direction of the winding units 1.1 to 1.5 by the actuator 20.

The guide carriage 16 moves until it reaches a stop 15.2 at the free end of the guide rail 14. Due to the connection with the belt 18, the following guide carriage and the deflection roller 13 fixed thereto are guided together and each receive one thread from the thread group 2 one after the other. This situation is illustrated in Figures 4.2 and 5.2.

During the thread separation and insertion into the top thread guide 3 of the thread group 2, the thread group 2 is guided by the suction injector 24. At this time, the suction injector 24 can be guided by an automatic operating device. In this case, the control device 21 of the actuator 20 is connected to a control device. For this purpose, the control device 22 is shown in FIG. 3 as an example in broken lines.

However, it is also possible in principle for the suction injector 24 to be guided by the operator. In this embodiment, as shown in FIG. 3, the control device 21 of the actuator 20 is connected to an operating tablet 23 at the operating end of the winder. In this way, the actuator 20 can be actuated by a key touch on the operating tablet 23 in order to move the guide carriage 16. The winding machine according to the invention is therefore suitable both for automatic operation and for manual operation.

In the illustrated embodiment of the winding machine according to the invention, the guide rail is arranged such that the top thread guide extends vertically downwardly onto the end face of the winding machine in order to guide the top thread guide with a curved guide section. It is shaped as it is guided along. Of course, the present invention also provides for the guidance of the top yarn guide along the end face of the winder either upwards in the opposite direction or laterally at an angle offset. It also includes curved sections that allow. Therefore, for example, by guiding the top thread guide in a position above the operating position of the top thread guide, it is possible to facilitate the insertion of the thread group fed from the godet.

In this embodiment, the top thread guide 3 is designed as a deflection roller 13 . However, it is also possible in principle for the top thread guide 3 to be formed by a ceramic thread hole or a ceramic guide groove. The deflection rollers shown in FIGS. 1 to 3 can therefore be easily replaced with such an arrangement of the top thread guide.

Furthermore, the guide rail may be configured such that the curved guide section and the straight guide section extend in one horizontal plane. With this configuration, the top thread guide can be held at the threading position without any difference in height.

Claims (10)

A winding machine comprising a plurality of winding units (1) for winding a plurality of threads (2) into packages (8) which are wound parallel to each other on a driven winding spindle (6). .1 to 1.5), a plurality of yarn traversing units (4) distributed and arranged in the winding unit, and a plurality of top yarn guides arranged upstream of the yarn traversing unit (4). (3), the top yarn guide (3) being movably held on the guide rail (14) and in an operating position within the range of the winding unit (1.1 to 1.5) or In a winding machine that can be selectively guided to a threading position outside the range of the winding unit (1.1 to 1.5),
Said guide rail (14) comprises at least one straight guide section (14.1) along said winding spindle (6) and a curved guide section ( 14.2), the curved guide section (14.2) of the guide rail (14) extending beyond the spindle end of the winding spindle (6); A winding machine featuring: Said guide rail (14) has a straight guide end section (14.3) at one end of said curved guide section (14.2); Winding machine according to claim 1, characterized in that the winding machine (15.1) has a stop (15.1) for one of the top thread guides (3) for the threading position. . A separate guide carriage of a plurality of guide carriages (16) is assigned to each top thread guide of the top thread guides (3), which guide carriages (16) are guided on the guide rails (14). and are connected to each other by a flexible belt (18), the length of which is formed in accordance with the spacing between mutually adjacent winding units (1.1 to 1.5). The winding machine according to claim 1 or 2, characterized in that: The straight guide section (14.1) of the guide rail (14) has at its free end a second stop (14.1) for the top thread guide of one of the top thread guides (3) relative to the operating position. Winding machine according to claim 3, characterized in that it has: 15.2). The top yarn guides (3) are each formed by a freely rotatable deflection roller (13) with an open yarn running groove (13.1), which deflection roller (13) is in each case Winding machine according to claim 3 or 4, characterized in that it is held cantilevered on the guide carriage (16) by holding webs (17) of different lengths. The straight guide sections (14.1) of the guide rails (14) allow the deflection rollers (13) to have different holding positions relative to the spindle axis (6.1) of the winding spindle (6). 6. According to claim 5, characterized in that the webs (17) are nevertheless obliquely arranged in such a way that in the operating position they are held in a plane parallel to the spindle axis (6.1). winding machine. A freely rotatable and stationary guide roller (19) is provided for guiding the thread group (2), which guide roller (19) is located at the threading position for separating and threading the threads. Winding machine according to claim 5 or 6, characterized in that it is assigned to the deflection roller (13) held at . The guide roller (19) is arranged downstream of the driven godet (11), and the godet (11) and the guide roller (19) ensure that the yarn running path plane of the yarn group is aligned with the direction changing roller. The winding machine according to claim 7, characterized in that it can be unfolded in a region between the operating position and the threading position of (13). An actuator (20) is assigned to one of the outer top thread guides (3), by which the top thread guide (3) is moved onto the guide rail (14). 9. Winding machine according to claim 1, characterized in that it is guideable. Claim 1, characterized in that the actuator (20) is controllable by a control device (21), which is connected to a control device (22) or an operating tablet (23). 9. The winding machine according to 9 .

Images