DE2128974A1 - Bobbin changing machine - Google Patents

Description

The invention relates to a device that can be moved along a machine front Bobbin changing machine for the removal of finished bobbins and for feeding empty bobbins to textile machines »where constantly demanded and processed independently of the winding drive Threads are fed from the operator side to a large number of winding positions lying next to one another in rows.

To operate textile machines on which thread material is processed and wound up in finished bobbins, automatic devices for operating the individual processing points are increasingly being used to save operating personnel and operating time. These devices are used, among other things, and primarily also for removing finished bobbins from the winding points and for inserting empty tubes into the

209852/0207

ORIGINAL

Take-up points. Such facilities can be used with the textile machine connected and assigned to each processing point or winding point.

These facilities are preferred for economic reasons to an automatic unit (bobbin changing machine) related »Such automatic bobbin changing machines fulfill the following functions in particular:

Removing the finished bobbins from the take-up points, transporting the finished bobbins between winding parts and transporting them away contraption ,

Feeding empty tubes to the textile machine, conveying the empty tubes from the bobbin changing machine to the winding point, . ■

Loosening and tensioning the bobbin carriers such as chucks, bobbin holders or the like ..

Such automatic bobbin changing machines are, for example, on rails in front of the The length front of a large number of machines can be moved and used for cyclic or wild reel changes. " can be used especially with cyclic operation of each Tesetilmaschinenfroat a reduction of the bobbin changing times by one Achieve a multiple if the bobbin changing machine serves several winding positions at the same time. These served at the same time Winding points can not only be next to each other, but also on top of each other. ■

Accordingly, the invention relates to reel changing machines for textile machines that are designed to interact with the bobbin changing machine, that several take-up points in tiers one above the other and in rows lying next to each other.

The invention also relates to textile machines threads conveyed constantly and independently of the take-up drive. . These are in particular textile machines, in which the production or processing of the threads from technical, per-

BATH ORIGINAL

2098 52/0 207

Bonellen or time reasons cannot be interrupted or for those with the processing point served, all other processing points of the textile machine at the same time or the corresponding textile machine side are interrupted would have to, as is the case, for example, with false twist shirring machines with heating devices the case is. In order to make it easier to apply the threads to the individual elements of the processing point, run it the threads run over the front of the machine to the individual winding parts arranged in tiers and form there, if necessary a veil of shimmering threads. These threads or these thread veils impede the interaction between the textile machine and a bobbin changing machine, regardless of whether the bobbin is changed at random or at regular intervals.

The object of the invention is to provide an automatic bobbin changing machine for the wild or to create cyclical bobbin changes for textile machines of the type described above, of the type mentioned at the beginning Performs functions and is able to change the bobbin on the side of the winding point on which the Threads run. For most textile machines, this will be the front of the machine. Furthermore, the invention the task can be solved that the winding process only on the take-up positions that are currently being served, and there too is only briefly interrupted and that the incoming threads in the time of the interruption without disturbing the changing process, but can also be eliminated without disrupting the machining process.

For this purpose, it is proposed according to the invention that the automatic bobbin changing machine of the type described at the outset has thread deflection devices which are arranged in the thread running direction below each level of take-up points in the region of the thread running on the bobbin changing machine and are movable essentially perpendicular to the thread direction into an end position in such a way that they each converge to a traversing thread guide yarns in side, the BedienuncBßeite dee opulenwechselautomaten releasing deflection webs 1 η r si nd.

^ '209852/0207

It is also proposed that the deflection devices each consist of a pin-shaped or hook-shaped structure movable on a guide.

It is preferably proposed that the thread deflection devices have a common drive.

To carry out the. the processes required for changing the bobbin at the winding points exposed by the changing thread veil now results in the task of die.Fäden to separate from the finished bobbins to be replaced and to dispose of them. For this purpose, it is proposed that the bobbin changing machine by means of thread suction devices attached to the area of the side tracks and assigned to each level of unwinding points as well as thread cutting devices located in front of these is identified.

In the event that the Spulenwechselautoraat serves each row of vertically superimposed winding parts at the same time, it is proposed that the thread cutting devices are actuated by engaging the thread deflectors in their lateral end positions.

The possibility of changing bobbins offered by the invention without a temporally significant interruption of the winding process, only with a corresponding design of the. Automatic bobbin changing machines fully used. It is therefore proposed in an advantageous embodiment of the invention that the Automatic bobbin changing machine for textile machines, in which the winding points each have a drive roller drive and a bow-shaped bobbin holder, its pivot axis and its Spool axis of rotation are aligned in the longitudinal direction of the machine and its one side surface can be pivoted away laterally to release the sleeve or spool clamped between centering plates is, .

209852/0207

is characterized by a slide that can be moved transversely to the machine in the area of the fall of the reels automatically removed from the reel holders, by a swivel lever which is attached to his End of cams, bolts or the like. Has and about two mutually perpendicular axes so rotatable and pivotable is that when the lever is pivoted about its axis running in the longitudinal direction of the machine, the bobbin holder with the bobbin of the drive roller is lifted or pressed against it and that When the lever is pivoted about the other axis, the movable side flank of the bobbin holder can be pivoted to the side, and by a storage container with an ejection device for empty tubes and a gripper which can be moved between two end positions, the gripper in one end position an empty tube can be fed in by means of the ejector device and wherein in the second end position the empty tube grasped by the gripper is essentially coaxial with the axis of rotation of the reel · In order to load the winding points with empty tubes, it is also proposed that the storage container for empty tubes be attached to the side of the bobbin changing machine and in the area of a lower edge a side outlet opening ' for cylindrical empty tubes and a slot running along this edge, in the as an ejector a movable pin, hook or the like on a straight guide protrudes in such a way that the one in front of the outlet opening Empty tube can be fed through this to the gripper located in its end position facing away from the textile machine.

For the purpose of the advantageous interaction between the storage container for empty tubes designed in this way, the ejection device and the gripper, it is proposed that the gripper consists of two cylinder jacket segments which are resiliently pivotable about a common surface line and whose radius corresponds essentially to that of the empty tube and whose length corresponds to that of the empty tube of the empty tubes protruding end pieces have funnel-shaped expanded radius.

209852/0207

With this configuration of the gripper, special drive devices can be used for the up and down movement of the gripper jaws are dispensed with; it will be possible once, the empty tubes from the outlet opening into the gripper, even if the gripper is not exactly in front of the outlet opening is positioned. On the other hand, the funnel-shaped widened end pieces serve to center the gripper on its Scope of gripped empty tubes in the bobbin holder, as there are its centering plate when swiveling back in the laterally pivotable F ^ .anke of the bobbin holder in the funnel-shaped Squeeze in the end pieces of the gripper and remove the empty tube capture. '·

For the purpose of reassembling the at the moment of the bobbin change The threads separated from the finished bobbins and fed to the suction device are in the area of the lateral path of the deflected threads each one level of winding stations associated second thread deflection devices proposed in the direction of their associated winding points in such a way movable are that dör the suction device tapering thread is deflected into a thread catching device present on the sleeve or on its receiving device.

The fact that the thread caught by the thread catcher and between the delivery mechanism and the driven sleeve and the The suction device is unhitched, threads of low strength will tear off. To get a defined separation point, or to enable the severing of thicker threads, and also to place a thread reserve at one end of the tube, it is proposed that the second thread deflection devices be designed as levers which can be pivoted through the lateral thread path are that the second thread deflection devices at their end have a cross piece pointing in the direction of the center of the bobbin, which is essentially perpendicular to the

2 0 9 8S 27 0 2 0 7 bad '8Sginal

lenachse extending pivot axis is pivotable against a spring force that the cross piece is parallel to the coil axis having running flank, at the end facing away from the coil center a small recess for gripping of the thread running in its lateral path and other at the other end a knife edge lying transversely to the flank direction is arranged, and that the spring is set in such a way that that the crosspiece only after detecting the thread through the thread catcher swings out »

The thread catching devices can be of any known type be. In an advantageously simple embodiment, the gap formed between the centering plate and the empty sleeve «can be wedge-shaped or be slit-shaped, i.e. designed as a thread catcher.

The automatic bobbin changing machine according to the invention is suitable for both for wild as well as for cyclic bobbin changes. However, it is preferably provided that the devices for Removal of the finished bobbins and turn feeding of the empty tubes in identical design and with a common drive on each floor of take-up points are assigned, so that at least one vertical row of take-up points is served at the same time will. But it is also possible to have several at the same time to use adjacent vertical rows. To this end, it is proposed that the devices for removing the finished bobbins and for feeding the empty tubes in identical design and with common Drive several, adjacent winding parts are assigned.

An exemplary embodiment which shows these and other advantages of the invention is described with reference to FIGS.

209852/0207

Show it: ,

1 shows a schematic diagram of the invention; Fig. 2 shows an automatic bobbin changing machine when removing the finished

do the washing up;

3 Fig. 3 bobbin changing machines when feeding empty tubes; Fig. K individual devices of the automatic bobbin changing machines

for feeding empty tubes;

it FIG. 5 shows the automatic bobbin changer when the threads are being re-laid;

Fig. 6 individual devices of the coil changing machine for Repositioning the threads.

In Fig. 1 and 2 winding points with Tollen bobbins 1, drive rollers 2 and tapering threads 3 are shown on three levels one above the other. As a result of the rapid to and fro movement of the traversing thread guide in front of the winding units, the threads form so-called thread veils k. The threads are fed through the delivery rollers 6,? delivered constantly and independently rom operation of the winding stations and passed over guide bars 5. In order to eliminate the thread veils that interfere with the bobbin change, thread deflection devices 8 are provided which are attached to a Spulenwecheel- ψ machine, which is not shown in Fig. 1, attached and

are movable to a side position. Which in this way into a Threads diverted to the side are still deposited by the traversing thread guide, although the winding points are exposed for individual or group operation.

In Fig. 2, an embodiment is shown in which the overlying take-up spools are removed at the same time. For this purpose, thread suction devices 1 * t and thread cutting devices 15 located behind them are arranged in the lateral path of the threads. The thread cutting devices 15 are actuated by engaging the thread deflecting devices 8 in their lateral end positions. The cut thread end is drawn into the suction of the thread suction devices 15

209852/020?

and is over this a waste container, not shown constantly fed. Now are by means of the pivot lever 13, the bobbin holder 9 is raised and the frictional contact between the bobbins 1 and the drive rollers 2 is released. By lateral pivoting of the pivot lever 13, the pivotable side flanks of the bobbin holder 9 are laterally deflected and the coil released. Without being hindered by the threads or thread veils that continue to run up, you can the bobbins now fall onto the slide 12 that has been driven up and over its individual floors into the bobbin storage and / or roll the bobbin transport device 16.

The loading of the individual winding points with empty tubes is shown in Fig. 3 and k . It is done by the grippers 20, which each consist of two gripper jaws 22 and 23. These gripper jaws have approximately the same radius as the empty tube. They can be swiveled around a common surface line and are held by springs * The gripper jaws are funnel-shaped at their ends. This makes it possible to insert an empty tube into each gripper from the side. In addition, each gripper can be pushed with its funnel-shaped ends over the centering plate J> h and in this way the empty tube resting between the gripper jaws can be centered.

The grippers 20 are loaded with sleeves 18, which are located in a container 17, the side next to your gripper is attached to the bobbin changing machine. The containers have a side opening 25 and a length slot 35 * in this slot that engages in the area of their leading edge Ejector 24 and conveys the front of the Lähschlitz 35 initially lying sleeve through the lateral Aüelaß 25 in the gripper 20. The gripper is now by means of his arm 19 extended between the centering plate of the bobbin holder 9. By moving the pivot lever 13

209852/020 x;

the bobbin holder 9 returns to its clamping position, so that the sleeve is clamped. The gripper can now be moved back.

The reattachment of the threads 3 still running towards the thread suction devices 1 * f is shown in FIGS. 5 and 6. To reattach the thread, the clamped tube is first brought into frictional contact with the drive roller by lowering the bobbin holder 9 by means of the pivot lever 13. In the area of the lateral thread run levers 21 are arranged, which can be pivoted on a predetermined path in such a way that each lever grips a thread with its end and places this thread over the 'sleeve that the thread of. a thread catching device attached to the sleeve or next to it, for example groove 32, is detected. As a result, the thread is stretched out between the delivery mechanism 6, 7 or the guide rod 5 'of the sleeve 18, the end of the lever 21 and the thread suction device ik. The lever 21 contains a cross piece 26 which grips the thread by means of the smooth flank 2.7 and guides it in a small depression 28 while the lever 21 wanders away. The flank lies essentially parallel to the coil axis. The crosspiece 26 is mounted pivotably about the axis 31. For pivoting, the force of the spring 30 has to be overcome. This spring force is set in such a way that the queuing piece is only swiveled out when the thread has been gripped and taken along by the catching groove 32 until it is pulled against the cutting edge 27 and pushed through and gripped by the thread guide 33. The thread deflecting directions 8 can now be returned to their original position.

The advantage of the invention is that the winding process in textile machines is a number of winding units arranged in tiers and rows when operated by the reel-changing car.

2098S2 / 02ÖY

places must be interrupted in which a bobbin change takes place. But even with these, the winding process is only interrupted when the drive drive between the finished bobbin and drive roller is already released. This can save valuable manufacturing time and reduce waste production to a large extent be avoided.

209852/0207 -

Claims (1)

Pat en t a η e ρ rüche M) A bobbin changing machine that can be moved along a machine front for the removal of finished bobbins and for feeding empty bobbins to textile machines, in which a large number of processed threads, which are continuously conveyed independently of the winding drive, are fed to an equal number of winding points lying next to each other in rows and on top of each other on the front side,
marked by Fadenablenkeinrichtung (8), which in the thread running direction below each level of winding points in the thread run arranged on the bobbin changing machine dl) and essentially are movable perpendicular to the thread direction into an end position in such a way that each of the traversing thread guides running threads can be deflected into lateral paths that release the operating side of the bobbin changing machine. 2) bobbin changing machine according to claim 1, characterized in that that the thread deflectors (8) from each. one on one Lead movable pin-shaped or hook-shaped structures exist. 3) bobbin changing machine according to claim 1 or claim 2, characterized by
a common drive for the thread deflection devices (8). 209852/0207 k} Automatic bobbin changing according to one or more of claims 1 to 3, ' marked by Thread suction devices (1Λ) attached in the area of the lateral webs and assigned to each level of winding points as well as thread cutting devices (15) located in front of these. 5) Spulenwechselautoraat according to claim * f, characterized that the thread trimmers (15) by engaging the Thread deflection devices (8) are operated in their lateral end positions. 6) Automatic bobbin changing according to one or more of the previous ones Claims for textile machines, in which the take-up points each have a drive roller drive and a bow-shaped drive Have bobbin holder, whose pivot axis and whose axis of rotation of the bobbin are aligned in the longitudinal direction of the machine are and one of its side flanks can be swiveled away laterally to release the sleeve or coil clamped between centering plates is, " characterized by ■ one across the machine (10) in the area of the fall of the Bobbin holders (9) automatically removed bobbins (i) mobile chute (12), by a pivot lever (1J5), which is attached to his End of cam, bolt or similar. has and by two perpendicular axes that are placed on top of one another can be rotated and pivoted in such a way that when the lever (13) is pivoted about its in the longitudinal direction of the machine extending axis of the bobbin holder (9) with the Coil (i) is lifted off or pressed against the drive roller (2) and when pivoting the lever (13) around the other Axis, the movable side flank of the bobbin holder (9) 209952/0207 can be swiveled away laterally, as well as through a storage container (I?) For empty tubes (18) and a gripper (20) between two end positions is movable, w-in one end position an empty tube can be fed to the gripper and w at in the In the second end position, the empty tube grasped by the gripper lies coaxially to the axis of rotation of the bobbin. 7) winding device according to claim 6, in conjunction with one of the several of the preceding claims, characterized in that that the storage container (17) is attached to the side of the Spulenwechselaut.jmat (1.1.) and in the area of a lower edge has a lateral outlet opening (25) for cylindrical empty tubes as well as a slot running along this edge, in which a straight guide Movable pin (2 ¹ O, hook or similar. protrudes in such a way that the empty tube located in front of the outlet opening can be fed through this to the gripper (20) located in its end position facing away from the textile machine. 8) bobbin changing machine according to claim 7i
characterized, that the gripper (20) consists of two around a common surface line resiliently pivotable Zvlindermnntelsegmenten (22, P ^), whose radius is essentially that of the empty tube and whose end pieces protruding beyond the length of the empty tubes have a funnel-shaped enlarged radius. "■■■■ '. BAD ORIGINAL 209352/0207 - 15 - ■ ' 9) Automatic bobbin changing machine according to one or more of the previous ones Expectations, characterized by in the area of the lateral path of the deflected Threads each assigned to a floor of winding parts second thread deflection devices (21), which in the direction of their associated winding points so movably Bind that the tapering thread in one of the Thread catching device present in the sleeve or its receiving devices (32) is diverted. 10) automatic bobbin changing machine according to claim 91
characterized, that the second thread deflector (21) as a through the lateral thread path pivotable lever is formed that the thread deflection device at its end in the direction of the Coil center pointing cross piece (26) carries the around a substantially The pivot axis (31) running perpendicular to the coil axis can be pivoted against a spring force (30) so that the crosspiece (26) has a flank (27) running parallel to the coil axis, at its end facing away from the center of the coil, a small recess (28) for gripping the in its side Web of running thread and at the other end of which a knife edge (29) lying transversely to the flank direction is arranged, and that the spring (30) is adjusted so that the crosspiece (27) only swings out after the thread has been captured by the thread catcher (32). 11) Automatic bobbin changing after one or more of the previous • nen claims, " characterized, that the means are assigned to the decrease of Fertigcpulen and supplying the Leerhüleen in identical manner and with overall drive of each Etnge of winding points. 209852/0207 12) bobbin changing machine according to one or more of the preceding claims,
characterized, that the devices for removing the finished bobbins and for feeding the empty tubes in identical design and with common drive are assigned to several winding stations lying next to one another. 209852/0207 Empty soap