EP0404875B1 - Synchronously working endless conveyor for a spinning machine - Google Patents

Abstract

A ring spinning frame has at least one group of equidistant spinning stations (11), a doffing device (14) for simultaneous interchange of bobbins (15) filled with yarn and empty bobbins (16) at each spinning station (11) and an endless conveyor (17) which runs past the spinning stations (11) and is automatically returned from one end of the groups of spinning stations (12) to the other. Vertical bobbin spindles (13) are mounted on the endless conveyor (17) at a distance from the spinning stations (11) such that when the bobbins on the endless conveyor (17) are doffed each spinning station (11) is aligned exactly with the corresponding bobbin spindle (13). Each bobbin spindle (13) is arranged on its own spindle carriage (18). Each spindle carriage (18) can be engaged with a corresponding driver (19) which is mounted in a position on the endless conveyor (17) such that when the driver (19) is engaged with the corresponding spindle carriage (18), the bobbin spindle (13) of this spindle carriage (18) is aligned exactly with the corresponding spinning station (11) in the doffing position of the endless conveyor (17).

Description

The invention relates to a synchronous endless conveyor on a spinning machine, in particular a ring spinning machine according to the preamble of claim 1 and a spinning machine with such a synchronous endless conveyor
In a known ring spinning machine of this type (GB-PS 1 168 638), the sleeve pins are attached directly to the endless conveyor designed as a horizontal conveyor belt. The endless conveyor is generally designed as a steel belt that warps as little as possible, so that the predetermined distances between the sleeve journals, which must exactly match the distances between the spinning positions, remain unchanged even when the machine is operated for a long time.

While in the ring spinning machine according to GB-PS 1 168 638, the sleeve journals are arranged half the distance from the spinning positions, in order to be able to accommodate an empty tube and a full tube (cop) of the assigned spinning position at the same time during doffing, it is also possible to use the as Belt-formed endless conveyor only to provide sleeve pins at a distance from the spinning stations, an additional pin then having to be provided at each spinning station in order to temporarily accommodate one of the sleeves to be replaced when changing the sleeves (US Pat. No. 3,905,184).

Furthermore, it is already known (EP-A-0 061 432) to provide an endless conveyor on each machine side of a ring spinning machine, with both debris of each endless conveyor being equipped with sleeve journals, so that when a full sleeve (cops) is replaced by an empty sleeve, the full sleeve first can be plugged onto an empty sleeve pin, while an empty sleeve is then removed from the sleeve pin assigned to the same spinning station of the other run and placed on the spindle of the spinning station. Also In this known ring spinning machine, the sleeve journals are connected directly to the endless conveyor via elbows.

The problem with the aforementioned ring spinning machines is, on the one hand, that the trunnions form an integral part of the endless conveyor, which is necessary because the trunnions in the sleeve changing position of the endless conveyor must be exactly aligned with the individually assigned spinning position. For this reason, the full sleeves (cops) at the end of the last group of spinning positions must be removed from the trunnion and then reloaded, for example, onto trunnion slides (peg trays) of a winding machine. Conversely, the empty tubes, for example supplied by the winding machine, must be placed on the trunnions at the beginning of the first spinning station group by means of special gripping and lifting devices.

It is also already known (JP-OS 57-161 134) that the peg trays used in the winding machine connected to the ring spinning machine can also be used as empty tube feed means or full tube discharge means, in that these peg trays, which generally consist of a circular disc and a center pin arranged vertically thereon to be displaced in a guide rail running around the ring spinning machine, the diameter, in particular the length of a pin slide, being slightly smaller than the distance between two adjacent spinning positions. The individual pin slides are in contact with one another and are pushed forward by exerting force on one or more pin slides, the thrust force being at least partially transmitted by the direct contact of the pin slides. A conveyor device for such trunnion slides is also known from DE-OS 35 44 560.

A disadvantage of the ring spinning machine according to JP-OS 57-161 134 is that the sleeve journals are not exactly in alignment with the spinning positions if a group of journal carriages with empty sleeves on one machine side has been moved in front of the assigned spinning stations. Therefore, before the sleeve change can be made, a rake must be pushed at right angles to the longitudinal axis of the spinning machine between the pin slides in the known ring spinning machine, so that the distances between the adjacent sleeve pins are coordinated exactly with the distances between adjacent spinning positions.

In a similar sleeve transport device (DE-OS 37 12 027) is used with a reciprocating rail or the like which extends along the spinning positions and which cooperates with pin slides which can be displaced in a guide rail in such a way that these are gradually moved up to the assigned spinning position . So that the trunnion slides are exactly aligned with the assigned spinning station, they must either have a length exactly equal to the distance between the spinning stations, or there are latch-like pivotable locking elements on the reciprocating rail, which are located exactly at the distance from the spinning stations, so that the locking elements ensure an exact alignment of the trunnion slides with the assigned spinning position even when the trunnion slides are not in contact with each other.

Both the provision of a special alignment rake for the trunnion slide (JP-OS 57-161 134) and the arrangement of pawls pivotable about an axis for each trunnion slide (DE-OS 37 12 027) require complex production and a considerable space requirement. The known arrangements are also prone to failure and maintenance poor.

A transport device for providing bobbin tubes and for removing spinning bobbins, in particular on a double-sided spinning machine, has already been proposed (not prepublished EP-A-0 337 126), which has an endless belt assigned to a drive, on the driving means for the Coil sleeves and spinning coils are arranged. The belt is designed as a flexible steel belt which is guided upright on both machine sides of the spinning machine by means of guides and / or deflection rollers. Carriers for transporting plates running on sliding surfaces can be fastened to the belt, the carriers having receiving surfaces which match the plates and partially enclose them. A driver is in contact with both the preceding and the following plates, so that the relative position of the plates to the spinning positions cannot be selected independently of the dimensions of the drivers in the conveying direction.

The aim of the invention is to provide a synchronous endless conveyor on a spinning machine, in particular a ring spinning machine, of the type mentioned at the outset, in which in particular the same trunnion slides used in the subsequent winding machine are also used for feeding and removing the sleeves on the Spinning machine can be used, but in the sleeve change position of the endless conveyor, an exact alignment of the sleeve pin relative to the assigned spinning station should be ensured without the need for expensive, fault-prone and requiring special maintenance mechanical measures such as the introduction of rakes or the arrangement of pivoting pawls .

To achieve this object, the features of the characterizing part of claim 1 are provided.

The idea of the invention is that drivers are attached to the endless conveyor in exact positioning, which only have to be held in entraining mechanical engagement with the trunnion slides in order to ensure an exact alignment of the sleeve spigot with the assigned spinning position in the sleeve changing position of the endless conveyor. However, this intervention occurs automatically when the trunnion slides have been transported to the spinning station. In this way, for example, the peg trays that are common in winding machines can also be used for the feed and removal of the sleeves on the ring spinning machine, and an exact alignment of the trunnions with the spinning positions is ensured without this being an exaggerated manufacturing and Maintenance effort must be driven.

The attachment of the drivers on the endless conveyor in precise alignment can be done as well as the known direct attachment of the trunnions to the endless conveyor, although the main advantage according to the invention is that the trunnion slides are only introduced into the guide rail at the loading station and brought into engagement with the rotating drivers can be. At the unloading station, the trunnion slides can easily be removed from the drivers, while the precisely positioned drivers remain unchanged on the endless conveyor, which is realized in particular by a vertically arranged steel belt.

Because of the design according to the invention, it is also possible to replace a damaged trunnion or trunnion slide with a flawless one, without the exact positioning guaranteed by the driver being impaired.

According to a first embodiment according to claim 2, it is possible to provide both debris of the endless conveyor on a single machine side, expediently, according to claim 3, both debris are equipped with drivers and a pin carriage is assigned to each driver.

However, it is particularly preferred if, according to claim 4, the endless conveyor is guided around two mutually opposite machine sides of one or more spinning station groups, so that full sleeves (cops) can be removed on both sides of the spinning machine and empty sleeves can be transported in in a single operation.

Due to the embodiment according to claim 5, it is possible to first place the empty sleeves on the additional pin, so that the sleeve pin is available for receiving the full sleeve. Then the empty sleeve from the additional pin can then removed and placed on the spindle of the spinning station. In order to carry out this doffing process, the endless conveyor can be suitably moved forwards or backwards at times by half a division of the spinning position. The arrangement of the additional pegs on the driver is particularly advantageous because conventional peg trays can be used as a result.

A particularly expedient arrangement of the additional pin results from claim 6.

In order to facilitate the conveying of the additional pin around the curved regions of the endless conveyor at the end of the spinning station group when the additional pins are arranged on the pin slide, the measure according to claim 7 is provided.

According to the invention, the endless conveyor is used according to one embodiment only for advancing, but not for carrying the trunnion slides. The support rail according to claim 8 is preferably provided for carrying the trunnion slide.

The mounting rail can also perform the longitudinal guidance of the trunnion according to claim 9. In this case, the driver has a pure drive function.

However, it is also possible that the pin carriage is additionally guided by the driver, for example by being in a snap connection with the latter. According to claim 11, the drivers hold the trunnion magnetically.

The invention is used with particular advantage in combination with a subsequent winder, the peg trays provided in the winder also promote the sleeves on the spinning machine.

According to claim 12, the pin carriages guided in groups unsynchronized one behind the other in groups are exactly positioned during the transition to the spinning machine by being brought into engagement in a controlled manner with the precisely positioned drivers. Conversely, after filling with a full sleeve at the end of the spinning group in question, the trunnion slides are removed from their exact positioning on the endless conveyor and fed to the normal transport system of the winding machine, which operates in a completely different cycle than the ring spinning machine. There is therefore no timing interface between the ring spinning machine and the winding machine.

The idea of the invention in the combination of the spinning machine according to the invention, in particular a ring spinning machine with a subsequent winding machine, is therefore to be seen in the fact that one and the same peg trays are brought into exact alignment with the individual spinning positions on the spinning machine with the simplest means, namely the precisely positioned carriers while the normal, unsynchronized transport of consecutive tenon slides takes place within the winding machine.

At the transition from the spinning machine to the winding machine, no grippers or the like are required, because the support or guide rails of the spinning machine can pass directly into the conveying means of a buffer zone or the winding machine.

According to claim 13, a buffer path is expediently connected between the spinning machine and the winding machine in order to have slightly different working speeds to consider both machines. A predetermined supply of full sleeves or empty sleeves, which are arranged on journal slides, is kept available on the buffer sections. If a buffer section is full, the subsequent device can be switched off for a certain period of time. Conversely, by means of suitable switching means, for example operating with light barriers, the supplied device can be temporarily switched off when there are no more storage sleeves on the buffer line. The conveying of the trunnion slides on the buffer sections should be carried out in batches, so that a motor does not have to be switched on and off for each fed trunnion.

This version provides particular advantages if the winding machine is defective. Usually it is very difficult to remove the cops by hand if the winding machine is defective. If there are time-critical signals, this is practically impossible unless you create special program functions.

According to the invention, however, the full heads can be removed from the sleeve journal on one buffer section. The trunnion slides are also removed from the buffer section, fitted with a new sleeve and then placed on the second buffer section again. Thanks to the monitoring according to the invention, pin slides with full cops are always supplied and the pin slides with empty sleeves are conveyed back into the ring spinning machine.

The buffer sections, which are to be protected against fiber flight, can also ensure that the full sleeves (cops) are largely protected against fiber flight by rapid transfer into the buffer section. In this case, however, the buffer zone at the exit of the ring spinning machine should have a capacity approximately equal to the number that supplies it Have spinning positions.

The gripper-free transfer of the trunnion slides from the spinning machine to the winding machine or the buffer section and vice versa can expediently be carried out according to claim 14.

An advantageous development of this embodiment is characterized by claim 15.

It is essential according to claim 16 that the exact positioning of the trunnion slides by the drivers only on the spinning machine, but not on the winding machine or on the buffer sections.

Advantageous structural designs of the diversion device or the initiator device are characterized by claims 17 and 18.

A particularly advantageous development of the invention is characterized in accordance with claim 19 in that the drivers are arranged on the endless conveyor with adjustable length. In this way, it is possible to precisely adjust the drivers after the endless conveyor has been installed in the ring spinning machine by first detaching them from the endless conveyor and then pushing them back and forth in the longitudinal direction of the machine until the sleeve journals carried along by the driver are exactly with them the assigned spinning station are aligned, whereupon the driver is again fixed on the endless conveyor, for example screwed tight.

A further possibility, after assembly of the endless conveyor on the ring spinning machine, to bring about an exact alignment of the sleeve journals with the assigned spinning station, is according to claim 20 that the endless conveyor is divided into individual sections, which can be connected by length-adjustable locks or locks of different lengths. Depending on a misalignment determined after the assembly of the endless conveyor, locks of different lengths can be inserted between the gates until each sleeve pin is exactly aligned with the assigned spinning position.

Another essential idea of the invention can be seen in the fact that an alignment of the drivers and thus the sleeve pin relative to the associated spinning positions can also be carried out after the assembly of the endless conveyor.

Preferably, the endless conveyor according to claim 21 consists of a vertically arranged steel belt, which is guided around deflection rollers provided at the ends of a spinning group with a vertical axis.

Fig. 1

eine schematische Draufsicht einer mit einer Spulmaschine kombinierten Ringspinnmaschine mit einem um zwei auf unterschiedlichen Maschinenseiten angeordnete Spinnstellengruppen herumgeführten Endlosförderer,

Fig. 2

eine schematische Draufsicht einer weiteren Ausführungsform einer mit einer Spulmaschine kombinierten Ringspinnmaschine gemäß der Erfindung, wobei ein Endlosförderer nur einer Spinnstellengruppe auf einer Maschinenseite zugeordnet ist,

Fig. 3

eine vergrößerte Teildraufsicht eines mit magnetischen Mitnehmern ausgestatteten Endlosförderers, der mit Zapfenschlitten bestückt ist,

Fig. 4

eine schematische Teildraufsicht einer erfindungsgemäßen Ringspinnmaschine im Bereich einer Entlade- oder Beladestation am Ende einer Spinnstellengruppe,

Fig. 5

eine Ansicht eines als vertikales Stahlband ausgeführten Endlosförderers mit darauf aufgesetzten, mit Permanentmagneten ausgestatteten Mitnehmern,

Fig. 6

eine Draufsicht des Gegenstandes der Fig. 5,

Fig. 7

einen Schnitt durch den Endlosförderer mit Mitnehmer, Zapfenschlitten und Führungsschiene sowie aufgesetzter Leerhülse,

Fig. 8, 9 und 10

Vertikalschnitte verschiedener mit magnetischem Material ausgestatteter Zapfenschlitten,

Fig. 11

eine weitere Ausführungsform eines Zapfenschlittens im Vertikalschnitt,

Fig. 12

eine schematische Seitenansicht nach Linie XII-XII in Fig. 4 in etwas vergrößertem Maßstab,

Fig. 13

einen vergrößerten Schnitt senkrecht zur Förderrichtung eines an einem Endlosförderer angeordneten und mit einem Zapfenschlitten bestückten Mitnehmers, der sowohl eine Förder- als auch eine Führungsfunktion ausübt,

Fig. 14

eine Draufsicht des Gegenstandes der Fig.13,

Fig. 15

einen Querschnitt senkrecht zur Förderrichtung einer weiteren Ausführungsform eines Endlosförderers mit daran angeordnetem Mitnehmer, Führungsschiene und Zapfenschlitten,

Fig. 16

einen entsprechenden Schnitt einer weiteren Ausführungsform, bei der der Endlosförderer ein umlaufendes Drahtseil ist,

Fig. 17

eine Draufsicht des Gegenstandes der Fig. 16,

Fig. 18

eine Seitenansicht zweier hintereinander angeordneter Zapfenschlitten mit einem Hülsen- und einem Zusatzzapfen,

Fig. 19

eine Draufsicht auf einen der in Fig. 18 dargestellten Zapfenschlitten, wobei zusätzlich eine Seitenführung schematisch dargestellt ist,

Fig. 20

eine perspektivische Ansicht eines Zapfenschlittens nach den Fig. 18 und 19,

Fig. 21

eine Vorderansicht des Endlosförderers mit an den Mitnehmern angeordneten Zusatzzapfen,

Fig. 22

eine Draufsicht des Gegenstandes der Fig. 21,

Fig. 23

einen Schnitt senkrecht zur Förderrichtung eines Endlosförderers mit daran angeordneten Mitnehmer und

Fig. 24

eine Draufsicht des Gegenstandes der Fig. 23.

The invention is described below, for example with reference to the drawing; in this shows:

Fig. 1

1 shows a schematic top view of a ring spinning machine combined with a winding machine with an endless conveyor guided around two spinning station groups arranged on different machine sides,

Fig. 2

2 shows a schematic top view of a further embodiment of a ring spinning machine according to the invention combined with a winding machine, an endless conveyor being assigned to only one spinning group on one machine side,

Fig. 3

2 shows an enlarged partial top view of an endless conveyor equipped with magnetic drivers, which is equipped with trunnion slides,

Fig. 4

2 shows a schematic partial plan view of a ring spinning machine according to the invention in the area of an unloading or loading station at the end of a spinning station group,

Fig. 5

1 shows a view of an endless conveyor designed as a vertical steel belt with drivers attached to it and equipped with permanent magnets,

Fig. 6

5 shows a top view of the object of FIG. 5,

Fig. 7

a section through the endless conveyor with driver, trunnion slide and guide rail and attached empty sleeve,

8, 9 and 10

Vertical sections of different pin slides equipped with magnetic material,

Fig. 11

another embodiment of a trunnion carriage in vertical section,

Fig. 12

3 shows a schematic side view along line XII-XII in FIG. 4 on a somewhat enlarged scale,

Fig. 13

3 shows an enlarged section perpendicular to the conveying direction of a driver which is arranged on an endless conveyor and is equipped with a trunnion slide and which performs both a conveying and a guiding function,

Fig. 14

a plan view of the object of Figure 13,

Fig. 15

3 shows a cross section perpendicular to the conveying direction of a further embodiment of an endless conveyor with a driver, guide rail and pin slide arranged thereon,

Fig. 16

a corresponding section of a further embodiment, in which the endless conveyor is a circulating wire rope,

Fig. 17

16 is a top view of the object of FIG. 16,

Fig. 18

2 shows a side view of two pin slides arranged one behind the other with a sleeve pin and an additional pin,

Fig. 19

18 shows a plan view of one of the trunnion slides shown in FIG. 18, a side guide additionally being shown schematically,

Fig. 20

18 shows a perspective view of a trunnion slide according to FIGS. 18 and 19,

Fig. 21

a front view of the endless conveyor with additional pins arranged on the drivers,

Fig. 22

21 shows a plan view of the object of FIG. 21,

Fig. 23

a section perpendicular to the direction of conveyance of an endless conveyor with carriers arranged thereon and

Fig. 24

23 shows a top view of the object of FIG. 23.

According to FIG. 1, a ring spinning machine 27 has parallel to one another on opposite machine sides Spinning station groups 12a and 12b, each consisting of only schematically indicated spinning stations 11a, 11b, 11c, 11d, 11e, 11f, 11g, 11h and 11i, 11k, 11l, 11m, 11n, 11o, 11p, and 11q. The same possible distance between spinning positions is designated by 24. Further details of the ring spinning machine 27, in particular the machine heads, are not shown because the arrangements in question are customary and known. For the sake of clarity, the number of spinning stations 11 is reproduced in a greatly reduced manner.

An endless conveyor 17 in the form of a vertically running steel belt is guided around the two spinning unit groups 12a, 12b and is placed around the deflecting rollers 39, 40, 41, 42 with a vertical axis at the two ends of the spinning unit groups 12a, 12b running parallel and in alignment with one another. There are therefore two long debris extending along a spinning group 12a or 12b and two short debris of the endless conveyor 17 connecting the two spinning unit groups 12a, 12b at the ends.

On the conveyor 17 designed as a vertical steel belt, drivers 19a, 19b, 19c, 19d, 19e, 19f, 19g, 19h and 19i, 19k, 19l, 19m, are aligned with the individual spinning positions 11a to 11q and extend outward from the endless conveyor 17. 19n, 19o, 19p and 19g attached. Immediately next to and below the endless conveyor 17, a horizontal support rail 22 extends in the area of the spinning station groups 12a, 12b, which is also guided around the left end of the ring spinning machine 27 parallel to the endless conveyor 17 in order to establish a transport connection between the two sides of the ring spinning machine.

On the mounting rail 22 are in series with the drivers 19a to 19h or 19i to 19q in a pin carriage 18 arranged, which according to FIG. 11 consist of a circular disc-shaped sliding body 44 and a sleeve pin 13 arranged vertically thereon, which are preferably made in one piece from plastic.

Two different versions of carriers are shown on the two spinning station groups 12a and 12b. On the spinning unit group 12a, drivers 19a to 19h are provided with mechanical driver fingers 45 which reach behind the pin slides 18, while on the opposite spinning unit group 12b drivers 19i to 19q are arranged on the endless conveyor 17 which contain permanent magnets 46, by means of which the journal carriages 18 in a lower position are releasably held with reference to FIG. 3 described.

On both sides of the machine are shown in Fig. 1 dashed sleeve changing devices 14, which can be designed as in classic doffers and are used to remove 11 full sleeves (cops) from the spindles of the spinning stations and instead place empty sleeves 16 on the spindles, which are by means of the endless conveyor 17 have been introduced to the individual spinning stations 11.

The deflecting rollers 41, 42 are connected to one another by a tensioning beam 47 which is movable in the direction of the double arrows in the longitudinal direction of the machine and which is set by a tensioning device 48, which is supported on the machine frame, under a pre-tensioning tensioning the endless conveyor 17.

At a suitable point, for example between the deflection rollers 39, 40, a cleaning station with blowing or suction nozzles and / or brushes can be provided in a manner not shown, in order to clean the carriers 19 and the conveyor belt 17 from fiber fly.

Furthermore, a cleaning element, for example in the form of a cleaning disk, can be fastened at any point on the endless conveyor 17, which is not already occupied by drivers 19, which slides along the carrier rail 22 when the endless conveyor 17 rotates and thereby cleans it. Such a cleaning element can be provided in all embodiments of the invention.

At the end of the spinning unit groups 12a, 12b facing away from the tensioning beam 47, buffer sections 28, 29 formed by conveyor belts 34, 35 are provided in alignment with the sections of the support rails 22 running along the spinning units 11, to which a winding machine 26 with guide rails 30, which is only schematically indicated, is attached and winding units 31 connects. The number of winding units 31 is at least one order of magnitude smaller than the number of spinning units 11.

In the area of the transition from the upper support rail 22 in FIG. 1 to the conveyor belt 34 directly adjoining the support rail 22, a deflector 36 is provided, which grips the pin slides 18 in the region of the deflection roller 39 and separates them from the drivers 19 guided around the deflection roller 39 , so that they reach the conveyor belt 34 beginning in the region of the deflection roller 39.

In front of the lower deflection roller 40 in FIG. 1, a conveyor belt 35 is also arranged, which first leads to the slide carriage 18 equipped with empty sleeves 16 to a stop 37, which is briefly withdrawn by means of a drive device 50 controlled by a light barrier 49 to release the frontmost slide carriage 18 can. The conveyor belts 34, 35 are driven in a controlled manner temporarily or continuously during a sleeve changing process.

At the front end of the conveyor belt 35, the support rail 22 associated with the spinning group 12a connects, so that the pin carriage 18, released from the holding stop 37 and equipped with empty sleeves 16, is pushed from the conveyor belt 35 onto the stationary support rail 22 and gripped there by the driver finger 45 of a driver 19 can be.

At the beginning and end of each conveyor belt 34, 35, light barriers 51, 52, 53, 54 are provided, which serve to determine the presence or absence of trunnion slides 18 at the relevant point and accordingly the mode of operation of the transport devices of the ring spinning machine 27 and the Control winding machine 26.

At the front end of the conveyor belt 34 is a further mechanically retractable and extendable stop 55 is provided, which is temporarily withdrawn when the full winding of the winding machine 26 is required to allow a predetermined number of full tubes 15 to pass through the winding machine 26.

The described combination of a ring spinning machine with a winding machine works as follows:
In the position shown in FIG. 1, in front of each spinning station 11 there is a journal slide 18 equipped with an empty sleeve 16. As soon as the sleeves arranged on the spindles of the spinning stations 11 are fully spooled with yarn, the empty sleeves 16 located on the individual journal carriages 18 are replaced by the The sleeve changing device 14 is lifted off the support pin 13, and the full sleeves (cops) 15 located on the spindles of the spinning positions are lifted off and exchanged for the empty sleeves 16. The full sleeves 15 arrive on the support pin 13 of the associated Pin carriage 18. Intermediate pin 23 (FIGS. 18 to 22) required for sleeve replacement are not shown in FIG. 1 for the sake of clarity.

As soon as the exchange of full sleeves 15 and empty sleeves 16 has taken place, the spinning process on the ring spinning machine 27 is resumed, and the endless conveyor 17 is started in the direction of the arrow, whereupon the full sleeves 15 are successively pushed onto the conveyor belt 34 of the buffer zone by the deflector 36 28 are handed over. At the other end of the conveyor belt 34, the winding machine 30 calls up the required number of full tubes 18 in order to produce the final large bobbins at the winding stations 31.

From the guide rail 30 of the winding machine 26, the empty-wound empty tubes with the journal carriages 18 carrying them are placed on the conveyor belt 35 of the buffer line 29, wherein they are successively conveyed to the stop 37. In this way, as well as on the conveyor belt 34, a series of pin carriages 18 lying directly against one another is created, which represent a reserve for the transfer to the endless conveyor 17.

As soon as a driver 19 with driver finger 45 comes into the position shown in dashed lines in FIG. 1 immediately in front of the deflection roller 40, the light barrier 49 via the control line 49 'indicated by dashed lines and the drive device 50 clears the way for the foremost journal carriage 18 by the stop 37 is withdrawn briefly. Thereupon, the conveyor belt 35 displaces this trunnion carriage into the position 18 'indicated by dashed lines in FIG. 1. Here the peg carriage is already on the stationary support rail 22. It now waits until the driver finger 45 of the driver 19 grips it and along the support rail 22 to the assigned spinning station of the spinning stations 11a to 11h or 11i to 11q.

While in the embodiment shown in the upper half of FIG. 1 of the driver with permanent magnets 46, lateral guiding of the trunnion slides through the mounting rail 2 is not necessary because this is taken over by the permanent magnets 46, the mounting rail 22 in the lower part of FIG 1 reproduced embodiment with mechanical driver fingers 45 also a lateral guide 56.

Since the drivers 19 are positioned on the endless conveyor 17 exactly in relation to the individual spinning stations 11 in the sleeve changing position shown in FIG. 1, the journal carriages 18 which they have taken along and thus the supporting journals 13 fastened to the journal carriage 18 are also exactly relative to the individual spinning stations 11 aligned. The initially non-existent alignment is produced during the transition from the conveyor belt 35 to the mounting rail 22, while it is deliberately given up again during the transition of the full sleeves 15 from the upper mounting rail 22 to the conveyor belt 34, since the cycle of the winding machine 26 is now changed again.

In the embodiment according to FIG. 2, in which the same reference numbers represent corresponding parts as in FIG. 1, an endless conveyor 17 with both debris 20, 21 is arranged on a machine side along a spinning group 12. In this embodiment, the sleeve changing device 14 exchanges the full sleeves arranged on the spindles of the spinning stations 11 by first placing the full sleeves 15 onto the journal slides 18 arranged on the run 20 and located on the support rail 22 in the region of the precisely positioned drivers 19 'and then from the pin slides 18, which are located on the mounting rail 22 of the strand 21 facing away from the spinning stations, in the region of the driver 19 ″ empty sleeves, which are also positioned precisely for each spinning station decreases and attaches to the spindles of the spinning stations 11. After this change has been made, the endless conveyor 17 is switched on. He then conveys the full sleeves 15 located on the pin carriage 18 successively via the conveyor belt 34 belonging to the buffer section 28 into the winding machine 26, while the winder 26 journals 26 via the conveyor belt 35 belonging to the buffer section 29 journal pins 18 with empty sleeves 16 to the strand facing away from the spinning stations 11 21 of the endless conveyor 17 releases. In this way, a complete set of full tubes 15 can be removed from the spinning stations 11 during the spinning process and a correspondingly full set of empty tubes 16 can be fed to the individual spinning units. At the end of the spinning process, ie shortly before the sleeves placed on the spindles are filled with yarn, there are only pin slides 18 equipped with empty sleeves 16 on the strand 21, while the pin slides 18 located on the strand 20 are empty and thus for receiving full sleeves 15 to be ready.

3 shows three versions of drivers 19 fastened to the endless conveyor 17 by means of screws 92 ′ with different embodiments of receiving openings 57 for the pin slides 18. While the first driver 19 has a trough-like prismatic receiving opening 57 with three separate permanent magnets 46 arranged one behind the other, the prismatic trough-like opening 57 'of the middle driver 19 is equipped with a correspondingly prismatic permanent magnet 46. The receiving opening 57 ″ of the third driver 19 shown is part-circular and is equipped with a permanent magnet 46 which is designed in the form of a part-circle.

According to FIG. 11, the sliding body 44 of the peg slide 18 is made of a soft magnetic on the circumference in the form of a circular cylinder jacket, with inserts 58 running in particular all around 3, partially come to rest against the permanent magnets 46, so that they are attracted by them and thereby the pin slides 18 are held on the drivers 19 in a defined position. 4 and 12 are equipped with full sleeves 15 pin slides 18 at the end of the ring spinning machine 17 or at the end of a spinning group by a deflector 36, against which the pin slides 18 start in the region of the deflection roller 39, separated from the drivers 19 and on Conveyor belt 34 is transferred, which is connected to the winding machine 26 (Fig. 1,2).

The deflector 36 is bow-shaped, as shown in FIG. 12, in such a way that the vertical steel conveyor belt 17 and the drivers 19 detached from the peg carriage 18 can pass through the bow opening, in order to get onto the circulation roller 39 and be guided around it.

In the conveying direction, directly behind the deflector 36, the empty tube feed conveyor belt 35 is provided, which feeds pin slides 18 equipped with empty tubes 16 to the carriers 19 emptied on the deflector 36. The feed direction f is perpendicular to the apex 17 'of the conveyor belt 17th

As soon as the foremost journal carriage 18 has been gripped by the associated driver 19, it is moved laterally out of the guide path 59 having a corresponding opening 59 'for the journal carriages 18 equipped with empty sleeves 16, whereupon the row of journal carriages 18 by one by the conveyor belt 35 Pin carriage is advanced so that the following empty driver 19 can be equipped accordingly.

5 and 6, adjacent drivers 19 overlap so that there is no gap between the drivers 19, into which the pin slides 18 fed via the conveyor belt 35 according to FIG. 4 could enter. In this way, it is ensured that the conveyor belt 35 according to FIG. 4 successively feeds the endless conveyor 17 and peg slides 18 equipped with empty sleeves 16 successively into the receiving openings 57 of successive drivers 19 and is held there by the permanent magnets 46. A light barrier 60 arranged above the foremost journal carriage 18 of the conveyor belt 35 can determine whether a journal carriage 18 is present in each case; Should the light barrier 60 determine the absence of such a peg carriage 18 at this point, the endless conveyor 17 could be stopped by suitable control means until a peg carriage 18 equipped with an empty sleeve 16 is supplied by the conveyor belt 35.

FIG. 7 shows how such a light barrier 60 could be designed in detail. A light transmitter-receiver 61 emits a light beam 62 upwards through the area in which a peg slide 18 should be located. Above this area, a retroreflector 63 is provided which, in the absence of a peg slide 18, reflects light into the light transmitter-receiver 61, so that a corresponding false signal can be triggered there. If there is a trunnion carriage 18 in the path of the light beam 62, no light is reflected to the light transmitter-receiver 61 and so no false signal is triggered at the light transmitter receiver 61, so that the operation of the conveyor 17 does not have to be interrupted.

8 to 10 show different designs of the plastic base of the sliding body 44 of the pin slide 18. Since this base rests on the mounting rail 22, particularly good sliding properties are important here.

The base 64 according to FIG. 8, which is made of good sliding and resistant plastic, is dome-shaped, so that there is only a sliding support on the support rail 22 on the circumference.

The floor 65 according to FIG. 9 has three sliding projections 67 which project downwards and are distributed uniformly over the outer circumference.

The floor 66 according to FIG. 10 has a flat support projection 68 in the central area, so that here the trunnion slide 18 only slides on the support rail 22 in its central area.

13 and 14 show an embodiment in which the sliding body 44 of the pin carriage 18 is held and guided exclusively by the drivers 19. For this purpose, the drivers 19 are fastened to the vertically extending steel conveyor belt 17, which, like preferably also the drivers 19, is guided in machine-fixed, upper and lower longitudinal guides 69 and 70 in such a way that the tilting moments exerted by the pin carriage 18 are also reduced the conveying direction can be taken up by the guides 69, 70.

The drivers 19 are not only provided with the trough-shaped depressions 57 for receiving the circumference of the sliding bodies 44, but also with holding stops 71, 72 which overlap the sliding bodies 44 from above and below. Since the permanent magnet 46 pulls the sliding bodies 44 into the receiving space 43 of the driver 19 thus formed, the pin slides 18 are thus positively connected, but releasably connected to the drivers 19 and thus to the conveyor belt 17 by the deflector 36 (FIG. 4).

In the exemplary embodiment according to FIG. 15, the vertical Steel conveyor belt 17 has an inwardly protruding spring 73 to the deflecting roller 39, which engages in a circumferential groove 74 of the deflecting roller 39. The other deflecting rollers 40, 41, 42 have corresponding circumferential grooves 74. This measure ensures that the steel strip 17 and the deflecting rollers are properly aligned vertically.

In the lower region, the vertically standing conveyor belt 17 has an outwardly pointing spring 75 which, displaceable in the conveying direction, engages in a corresponding groove 76 in the driver 19. By means of schematically indicated clamping means 77, the driver 19 can be fixed in different longitudinal positions relative to the conveyor belt 17. In this way, a longitudinal adjustment of the driver 19 relative to the endless conveyor 17 is possible.

In its lower area, the driver 19 has a T-shaped guide recess 78, by means of which it slidably rests on a profile 79 with a T cross section that is complementary thereto. The T-profile is firmly connected to the mounting rail 22 and the lateral guide 56, i.e. machine-proof. Due to this guidance of the drivers 19, these and the conveyor belt 17 are also supported and guided correctly in the vertical direction between the deflecting rollers 39, 40, 41, 42.

The circular-cylindrical sliding body 44 of the pin carriage 18 is slidably mounted on the mounting rail 22 and is advanced by the driver finger 45 of the driver 19 when the endless conveyor 17 is put into circulation.

The lateral guides 56 are bent at their upper end to a guide edge 80, so that the sliding bodies 44 are secured against lifting from above and can only be moved in the desired conveying direction.

16 and 17, the endless conveyor 17 is formed by a circumferential steel cable, on which the drivers 19 provided with corresponding receiving grooves 81 are clamped in a desired longitudinal position by clamping means 77. In this way, too, the drivers 19 can be attached to the endless conveyor 17 in a variable length. In this embodiment, permanent magnets 46 are again provided, which cooperate with a magnetic insert 58 on the circumference of the sliding body.

Driver pins 82, which are fixed to the driver, extend downward from the underside of the driver 19 into a longitudinal groove 83 of the mounting rail 22, which, in cooperation with the lateral guide 56 on the opposite side, ensures a perfect longitudinal guidance of the pin carriage 18.

18 to 20, the pin carriage 18 can also be provided with an additional pin 23, which is designed in the same way as the sleeve pin 13. For this purpose, a connecting tab 84 extends from the foot of the additional pin 23 to the foot of the sleeve pin 13, where it forks. The two fork arms 84 ', 84' 'encompass the base of the sleeve pin 13 in the form of a circle and are snapped into an all-round groove 13' '. In this way, a defined distance 25 is produced between the sleeve pin 13 and the additional pin 23, which is equal to half the distance 24 between two spinning positions.

Due to the encircling of the base of the sleeve pin 13 by the fork-shaped ends 84 ', 84''of the connecting tab 84, the additional pin 23 can also pivot about the central axis 85 of the sleeve pin 13, as is indicated by the double arrow in FIG. 19. This swiveling has the meaning that the sleeve pin 13 and the additional pin 23, when arranged in a linear guide 86, can be set exactly one behind the other, as shown in FIG. 19, while when the guide 86 changes into a curved region 87 there is a relative pivoting between the two pins 13, 23 is possible so that the overall arrangement can also be properly guided over curved regions of the conveyor 17.

After the additional pin 23 is located exactly between two successive sleeve pins 13, the sliding bodies 44 of which lie close to one another, the foot 88 of each additional pin 23 overlaps the sliding body 44 of the immediately following pin slide 18, and must therefore be designed with a corresponding height offset.

While the sleeve pins 13 are used to feed and remove empty sleeves 16 or full sleeves 15, the additional pins 23 have the sense of temporarily accommodating the empty or full sleeve when changing the sleeve at a spinning station 11, so that the arrangement of such an additional pin 23 on the Spinning machine itself unnecessary.

According to FIG. 21, the additional pins 23 can also be provided on the drivers 19, which for this purpose grip the support pins 13 or their feet 13 'in a fork shape from the endless conveyor 17, so that a platform 19' '' is formed behind each sleeve pin 13, on which the additional pin 23 is located at the half pitch 25. According to FIGS. 21 and 22, the additional pin 23 is constructed in the same way as the sleeve pin 13 and also has the same arrangement in the vertical direction.

In order to hold the pin carriage 18 securely from the front and to avoid lateral guidance, the feet 13 'are the The sleeve pin 13 is held from the front by a spring arm 92 which extends away from the endless conveyor 17 and which carries a rounded recess 93 which partially wraps around the circular cylindrical foot 13 'from the front and thus the foot 13' against the platform 19 '''of the driver 19 presses. In this way, the pin slides 18 need only be supported in a sliding manner from below by the mounting rail 22, while all other mounting and guiding functions are taken over by the drivers 19.

23 and 24 show a structurally particularly preferred implementation of the invention. The support rail 22 is designed as a hollow and extending in the longitudinal direction of the machine guide profile with a flat upper sliding surface, which is arranged fixed to the machine. The driver 19 fastened to the conveyor belt 17 is fastened to the endless conveyor 17 by means of a screw 93 ′ and is guided on all sides of the carrier rail profile 22 by the engagement of a projection 93 into a cavity 94 of the carrier rail profile 22.

This also stabilizes the movement of the endless conveyor 17, again designed as a vertically arranged steel belt. The driver platform 19 ′ extends rearward and outward from a vertically upwardly directed arm 95 above the upper surface of the sliding body 44 of the pin carriage 18 in order to engage behind the foot 13 ′ of the sleeve pin 13. From the front, the jaw 96, which is pressed against the foot 13 'by means of a leaf spring 92' ', engages the sleeve journal 13 so that the journal carriage 18 is detachably held and guided on all sides and can be removed in the direction away from the endless conveyor 17.

A group of spinning units 12 generally consists of 48 spinning units. 3 to 25 spinning station groups are put together to form a spinning machine. Runs according to the invention the endless conveyor 17 along or around such a spinning machine, that is to say that an endless conveyor 17 is preferably not guided around each individual spinning group, but rather around the entirety of all spinning groups.

Claims (23)

1. Synchronous endless conveyor (17) at a spinning machine, in particular a ring spinning machine, having at least one group (12a, 12b) of spinning positions (11a to 11h; 11i to 11q) arranged alongside one another at a common spacing, a sleeve changing device (14) for the simultaneous exchanging of full sleeves (15) wound with yarn for empty sleeves (16) at each spinning position (11a to 11h; 11i to 11q), with the synchronous endless conveyor (17) running along the spinning positions, and being guided from one end of the spinning position group (12a, 12b) of a plurality of spinning position groups to the other end in order to convey the empty sleeves (16) to the spinning positions (11) and to convey the full sleeves (15) away from the spinning positions (11), and by means of which the upright sleeve pegs (13) having the spacing of the spinning positions can be moved in such a way that in a sleeve exchange position of the endless conveyor (17) each sleeve peg (13) is exactly aligned with a spinning position (11) which is individually associated with it, wherein at one end of a group of spinning positions (12a) or of a plurality of groups of spinning positions, a full sleeve unloading station (32) is provided to which the endless conveyor (17) successively supplies the full sleeves (15) from the group of spinning positions (12a, 12b), or from the groups of spinning positions, and wherein an empty sleeve loading station (33) from which the endless conveyor (17) supplies the empty sleeves (16) successively to the group of spinning positions (12a, 12b), or to the groups of spinning positions, is preferably provided at the same end,
   characterised in that
   each sleeve peg (13) is arranged on its own peg tray (18), the length of which in the conveying direction is somewhat smaller than the spacing of two adjacent spinning positions (11); and in that a mover (19a to 19h; 19i to 19q; 19', 19'') is associated with each peg tray (18), is constructionally separate therefrom that can be brought into releasable moving engagement with it, with the mover being mounted at such a position on the endless conveyor (17) that when the mover (19a to 19h; 19i to 19q; 19', 19'') stands in moving engagement with the associated peg tray (18), the sleeve peg (13) of this peg tray (18) is precisely aligned with the associated spinning station (11) in the sleeve exchange position of the endless conveyor (17).
2. Synchronous endless conveyor in accordance with claim 1, characterised in that one run (20) of the endless conveyor (17) extends along a group of spinning positions (12) disposed at one machine side, or along a plurality of groups of spinning positions disposed at one machine side, and in that the other run (21) is returned on the same machine side (Fig. 2).
3. Synchronous endless conveyor in accordance with claim 2, characterised In that each run (20, 21) is equipped in the sleeve exchange position with a mover 19', 19'') respectively associated with one spinning position (11) and a peg tray (18) is associated with each mover, with the peg trays (18) of the one run (20) serving to receive the full sleeves (15) and the peg trays (18) of the other run (21) serving to receive the empty sleeves (16).
4. Synchronous endless conveyor in accordance with claim 1, characterised in that the endless conveyer (17) is guided around two groups of spinning positions (12a, 12b) arranged on opposite sides of the machine and around the ends of the machine (Fig. 1).
5. Synchronous endless conveyor in accordance with claim 2, 3 or 4, characterised in that an additional peg (23) is arranged on each peg tray (18) or mover (19) which extends parallel to and at a spacing from the sleeve peg (13), such that at the same time a full sleeve (15) has space on the one peg (13) and an empty sleeve (16) has space on the associated other peg (23), with the additional peg (23) expediently being constructed in the same way as the sleeve peg (13), and in particular being arranged at the same level.
6. Synchronous endless conveyor in accordance with claim 5, characterised in that the additional spigot (23) is spaced from the sleeve peg (13) by half the spinning position spacing (25).
7. Synchronous endless conveyor in accordance with claim 5 or claim 6, characterised in that the additional peg (23) is secured to the peg tray (18), and is pivotable around the sleeve peg (13), and is so held or guided that it lies in the sleeve exchanging position precisely in a line with the remaining pegs (13, 23) of the same group of spinning positions (12a, 12b), or that the mover (19) has an additional peg carrier (19''') in front of, or preferably behind, the associated sleeve peg (13) and extending past the latter.
8. Synchronous endless conveyor in accordance with one of the preceding claims, characterised in that the peg trays (18) are slidingly journalled on a carrier rail (22), and are displaced on the carrier rail (22) by the associated movers (19) (Figs. 1, 2), or in that the peg trays (18) are releasably carried by the movers (Figs. 13, 14).
9. Synchronous endless conveyor in accordance with claim 8, characterised in that the carrier rail (22) simultaneously takes on the function of longitudinal guidance of the peg trays (18).
10. Synchronous endless conveyor in accordance with claim 8 or claim 9, characterised in that the mover (19) is not only in moving engagement with a peg tray (18), but also in guiding engagement.
11. Synchronous endless conveyor in accordance with claim 10, characterised in that the movers (19) releasably hold the peg trays (18) magnetically.
12. Synchronous endless conveyor in a spinning machine in accordance with one of the preceding claims, in combination with a subsequent winding machine, characterised in that the peg trays (18) simultaneously serve to transfer the full sleeves (15) to the winding machine (26) and the empty sleeves (16) from the winding machine (26) in that the peg trays (18) carrying the full sleeves (15) are separated at the end of the last group of spinning positions in the conveying direction, in each case from one of the exactly positioned movers (19) of the synchronous endless conveyor (17), and - preferably lying directly adjacent one another - are supplied to a customary peg tray transport apparatus (30) of the winding machine, and the peg trays (18) carrying the empty sleeves (16) are supplied from the customary peg tray transport apparatus (30) of the winding machine (30) - preferably lying directly against one another - individually one after the other in each case to one of the exactly Positioned movers (19) of the synchronous endless conveyor (17) and are supplied from the latter, now exactly positioned, to the respectively associated spinning position (11).
13. Synchronous endless conveyor in accordance with claim 12, characterised in that the full sleeves (15) of the winding machine (26) and the empty sleeves of the spinning machine (27) are each supplied via a respective buffer path (28, 29) with a capacity of a plurality of sleeves, preferably 10 to 20 sleeves (25 and 26 respectively).
14. Synchronous endless conveyor in accordance with claim 12 or claim 13, characterised in that the full sleeve unloading station and the empty sleeve loading station are formed by a guide-out device (32) or by a a guide-in device (33) respectively, which transfer the peg trays (18) equipped with full sleeves (15) from their exactly aligned position at the endless conveyor (17) into the pure transport position on the buffer path (28), or in the winding machine (26), or transfer the peg trays (18) equipped with empty sleeves (16) from their pure transport position on the buffer path (29), or in the winding machine (26), into their precisely aligned position on the endless convey or (17), with the sleeves (15, 16) on the buffer path (28, 29 respectively), or in the winding machine (26), preferably standing at least partly in contact with one another and being displaced groupwise.
15. Synchronous endless conveyor in accordance with claim 14, characterised in that the guide-out device (32) which separates the peg trays (18) equipped with full sleeves (15) from the precisely positioned movers (19) and transfers them to a conveying means (34), such as a conveyor belt, having no movers at a defined spacing, with the peg trays (18) being conveyed on the conveyor belt to the winding machine (26) preferably contacting each other.
16. Synchronous endless conveyor in accordance with claim 14 or claim 15, characterised in that the guiding device (33) in each case supplies a peg tray (18) equipped with empty sleeves (16) from a conveying means (35) having no movers at a defined spacing, such as a conveyor belt, to an exactly positioned mover (19) of the endless conveyor (17) synchronised with the movement of the synchronous endless conveyor (17).
17. Synchronous endless conveyor in accordance with claim 15, characterised in that the guide-out device (32) includes a fixed deflector (36) which separates the peg trays (18) equipped with full sleeves (15) from the movers (19).
18. Synchronous endless conveyor in accordance with claim 16, characterised in that the guide-in device (33) has a movable holding abutment (37) which holds back the respective frontmost peg tray (18) until a mover (19) approaches, and then releases it when it can come into engagement with this mover (19).
19. Synchronous endless conveyor in accordance with one of the preceding claims, characterised in that the movers (19) are longitudinally adjustably arranged on the endless conveyor (17).
20. Synchronous endless conveyor in accordance with one of the claims 1 - 18, characterised in that the endless conveyor is subdivided into individual sections which are connectable by longitudinally adjustable links or links of different length.
21. Synchronous endless conveyor in accordance with one of the claims 1 - 19, characterised in that the endless conveyor consists of a vertically arranged steel band which is guided at the ends of a group of spinning positions around deflection rolls (39, 40, 41, 42, or 39', 42') with a vertically upright axis.
22. Synchronous endless conveyor in accordance with one of the claims 8 to 21, characterised in that a cleaning element is secured to the endless conveyor (17) which enters into engagement with the carrier rail (22) and cleans it on circulation of the endless conveyor (17).
23. Spinning machine, in particular a ring spinning machine, with at least one row of spinning positions (11a to 11h, 11i to 11q) and a synchronous endless conveyor in accordance with one of the preceding claims which conveys the empty sleeves (16) to the spinning positions and conveys the full sleeves (15) away from the spinning positions.

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