EP1197463B1 - Tube feeder for the workstation of a textile machine producing crosswound bobbins - Google Patents

Abstract

The bobbin sleeve feed unit (12), to transfer a sleeve from a store to the bobbin winding station to wind cross wound bobbins, has a sleeve grip (24) which automatically matches the diameter of the empty bobbin sleeve (14). During the transfer movement, the longitudinal axis (57) of the bobbin sleeve is aligned in the transfer position with the rotary axis of the sleeve holding plate at the bobbin frame, independently of the sleeve shape and diameter. The bobbin sleeve feed mechanism, for a bobbin winder, has a pressure stamp (54) which slides along the empty bobbin sleeve and with a restricted swing movement on swing axes (37,38). The pressure plate (56) has a tilting movement, with a functional link to the paired gripping fingers (35,36). The pressure stamp has a buffer spring within a hollow body, which slides within a holder at the gripper base body (31). The connecting bracket (53) of the hollow body has a swing drive arm (28), which is tripped by the switch rod (23) at the workstation of the bobbin frame. The tilting plate of the pressure stamp is linked to the gripper fingers through strap slides (43), in relation to the sleeve axis. The slides have an elongated hole holder (60) to define the setting movements of sliding connectors (41), in turn linked to the gripping fingers through control rods (39). The movements of the gripping fingers are defined by the slides, the connectors and the control rods. The connectors slide along guide rails (48) at the base body of the sleeve grip unit, and are held in place by holding plates (45) at the setting for the gripping fingers to take an empty bobbin sleeve. The base body of the grip unit is on a sliding mounting at the base frame (20) of the bobbin sleeve feed assembly. The switch rod is at the base frame to give a spatial movement to the base body and also a defined operation of the sleeve grip, with a switch arm operated at the workstation. The spatial movement and/or operation of the bobbin sleeve grip is through an electric drive near the base frame. The bobbin sleeve grip is mounted to a cross beam, over the workstations of the bobbin winder, or it can be a component part of a mobile maintenance unit, which travels along the line of workstations, to serve them when required. The mobile maintenance unit travels on a guide rail, over the workstations, linked to a central control for the bobbin winder.

Description

The invention relates to a sleeve feeder for a Workplace of a cheese-producing textile machine according to the preamble of claim 1.

In connection with cross-wound textile machines are both along the jobs of these textile machines moveable and if necessary at the individual jobs Positionable operating units, so-called Chopper changer, as well as separate, stationary at each of the Jobs arranged changing facilities known.

A movable along the workstations operating unit, if necessary at the relevant job is positionable and there a finished cheese against a Empty tube replaces, for example, in the DE 37 26 508 A1.

This known movable operating unit has a multiplicity of handling devices which are activated during a change cycle in accordance with a predetermined program.
The operating unit has, inter alia, a Spulenauswurfarm, which converts the finished cross-wound bobbin to a special machine-length transport device if necessary, and a tube gripper, which removes an empty sleeve from a working-own sleeve memory and these exchanges in the creel of the relevant job.

The tube gripper has individual gripper fingers, their starting position, according to the one to be handled Sleeve format, manually adjustable.

A comparable operating unit is also described in EP 0 126 352 B1.
In this known, also quite complex control unit, a sleeve feeder is provided, which is arranged on a pivotally mounted intermediate frame. This intermediate frame can, depending on whether cylindrical or conical empty tubes must be handled, are pivoted into a first or a second working position.
According to EP 0 126 352 B1, it is also provided that coil holders are arranged on the output side of an empty tube storage, which are manually adjustable according to the respective tube diameter.

As the structural design of such complex operating units Overall, relatively complicated and complicated, designed also the production of such aggregates right expensive.

Therefore, they are already different in the past Attempts have been made to move these, relatively complicated operating units by stationary, simple built-change devices at each of the jobs to replace a textile machine.

In DE 21 57 304 B and DE 21 21 426 B texturing machines are described, for example, the jobs each have a pivotable between a winding position and a cheese supply position creel.
The individual jobs is also assigned in each case an empty tube memory, the output of which can be positioned in the swivel range of the coil frame, that the coil frame can be automatically equipped with a new empty tube after delivery of the finished cheese.

A comparable device is also known from EP 0 157 654 B1.
Also in this winding machine, the individual jobs are each equipped with a coil frame which is pivotable between a winding position, a cheese supply position and a Leerhülsenaufnahmeposition.

Each job is also a job owner's own Assembled sleeve memory, by a rotary actuator can be acted upon so that the foremost sleeve in Sleeve storage exactly equal to the empty tube receiving position brought the coil frame and there through the closing coil frame can be added.

A textile machine with stationary changing devices on Each workstation and an associated empty tube storage is also in DE 195 28 983 A1 the example of a False twist machine shown and explained.

The above-described stationary change devices have However, all the serious disadvantage that they only for a particular sleeve format are designed.

That is, the empty tube storage are each formed and arranged that the empty tube presentation position of the Empty sleeve storage only with a specific sleeve diameter with the empty tube receiving position of the creel matches. When changing the sleeve format, as far as possible with the known devices is, in each case extensive manual adjustment or Alterations required.

Based on the aforementioned prior art is the Invention the task is based, a cost-effective Device to create a simple way Exchange of empty tubes, also of different formats, in the creels of the jobs of a cheeses making textile machine possible.

This object is achieved by a sleeve feeder dissolved, as described in claim 1.

Further advantageous embodiments of the invention are Subject of the dependent claims.

The inventive construction of a sleeve feeder has in particular the advantage that with such Tube feeders without problems Empty tubes of any diameter or different shape (cylindrical or conical) a creel can be handed over without that before or with a change of the sleeve format any Adjustments are necessary.

That is, the sleeve feeder according to the invention takes with its sleeve gripper the respective empty tube on a preferably stationary, coil own sleeve memory and conveys them into a sleeve transfer position in which they can be taken over by the coil frame.
During this transport, the center longitudinal axis of the empty tube is automatically aligned so that it coincides exactly in the sleeve transfer position of the sleeve feeder with the axis of rotation of the sleeve receiving plate of the coil frame positioned there.
The empty tube can then be taken by closing the coil frame securely between the rotatably mounted sleeve receiving plates.

In a preferred embodiment, the tube gripper a vertically slidably mounted Andrückstempel on, the is functionally connected with gripper finger pairs. The Gripper finger pairs are in turn about pivot axes limited rotatably fixed to connection brackets (claim 2). The functional coupling of the Andrückstempels respectively one of the Andrückstempel tiltable arranged pressure plate with The gripper finger pairs leads to every movement this pressure plate to a comparable, however opposite movement of the gripper finger pairs leads.

As set forth in claim 3, the Andrückstempel is in a cylindrical, for example, slidably guided hollow body and is buffered by a spring element. That is, that Spring element acts on the Andrückstempel in the sense "Extending".

To the hollow body, which in turn is slidably mounted in a corresponding receiving bore of a base body of the tube gripper, engages a drive arm of an acted for example by the coil frame of the relevant workstation switching linkage (claim 4).
About the drive arm of the hollow body and thus the Andrückstempel is easily displaced in the direction of the empty tube. The Andrückstempel arranged on the pressure plate is, under the spring force of the switched between Andrückstempel and hollow body spring element, on the empty tube and fixed them safely.

In an advantageous embodiment is also on Andrückstempel, tiltable with respect to the central longitudinal axis of the empty tube, a Andrückplatte arranged, the end over each strap-like slide connected to the gripper finger pairs is. The pressure plate automatically adjusts itself to the situation the surface of the empty tube and controls it over the tab-like slide automatically the associated Gripper finger pairs exactly (claim 5).

As set forth in claims 6 to 8, the slides have in each case a slot guide on which the adjustment of a Slider-like connection element limited. The Connection elements are each with a control linkage with connected to one of the gripper finger pairs. That means the Position of the gripper finger pairs is determined by the location of Connection elements or by the position of tab-like slide determined in turn to the Pressure plate of Andrückstempels are connected.

Such a direct mechanical coupling of Andrückstempels or its pressure plate with the associated Gripper finger pairs represents a reasonably priced and reliable Control device, which in a simple way an exact Positioning of the center longitudinal axis of an empty tube independently on the shape and diameter of the empty tube allows.

In a preferred embodiment, the connection elements slide on guide rails, which are integrally formed on the base body. That is, not only the altitude of the connection elements Reliably predetermined, through the guide rails will also a horizontal migration of the connection elements safely prevents (claim 9).

As described in claim 10, the connecting elements and thus the gripper finger pairs can be fixed by special holding plates in a basic position, so that a trouble-free transfer of an empty tube is guaranteed by the sleeve memory to the Hülsenzubringer.
The holding plates have for this purpose in each case an angled guide slot, which embraces a collar-like projection on the connecting elements.

As described in claims 11 to 13, in a first embodiment, the base body of the tube gripper is slidably mounted in a base frame of the sleeve feeder.
At the base body of the tube gripper thereby engages a drive arm of a shift linkage, which preferably allows both a spatial displacement of the tube gripper and its defined operation.
The shift linkage has, inter alia, a switch arm which can be acted upon by the pivotally mounted coil frame. With such a design of the sleeve feeder, it is possible to operate the tube gripper by means of the pivot drive of the associated coil frame.
That is, a separate drive for the sleeve feeder is not necessary in the above-described training.

In an alternative embodiment, which is set forth in claim 14, a drive, preferably an electric drive, is arranged in the region of the base frame. The electric motor is connected, for example via a slightly modified shift linkage described above, to the tube gripper and can both displace and actuate it.
By using such an electric drive arranged on the base frame of the sleeve feeder, it is possible, for example, to further accelerate the changing process, especially the replacement of the empty tube in the coil frame.

The sleeve feeder according to the invention is either, as set forth in claim 15, stationary at each of Workstations of a cheese-producing textile machine arranged, or, as described in claim 16, as mobile operating device designed to be used on the job can be positioned.

The embodiment described in claim 15 leads to a textile machine, which has a high efficiency, since a possible defect in one of the sleeve feeder only affects the job in question, while the numerous other jobs remain unaffected. In addition, a textile machine with stationary Hülsenzubringern at each job from home on a high efficiency, since at each job, the change process can always be initiated immediately.
If required, change processes can also take place at several workstations at the same time.

The embodiment according to claims 16 and 17 especially the advantage that they total something being cheaper, being through forward planning and Control when using the sleeve feeder possibly occurring efficiency losses can be minimized. In particular, since such a trained sleeve feeder To supply a job significantly less time needed, for example, as a previously used, mobile cheese change unit.

Further details of the invention are given below Embodiment set forth with reference to the drawings removable.

Fig. 1

eine Vorderansicht auf eine Kreuzspulen herstellende Textilmaschine, mit erfindungsgemäßen, stationären Hülsenzubringern an den einzelnen Arbeitsstellen,

Fig. 2

eine Vorderansicht der Textilmaschine gemäß Figur 1, wobei der erfindungsgemäße Hülsenzubringer als entlang der Arbeitsstellen verfahrbares Bediengerät ausgebildet ist,

Fig. 3

eine Seitenansicht auf einen Hülsenzubringer, dessen Hülsengreifer in der Hülsenübergabeposition parkt,

Fig. 4

den Hülsenzubringer gemäß Figur 3, wobei der Hülsengreifer in der Hülsenübergabeposition steht,

Fig. 5

den Hülsengreifer gemäß Blickrichtung X der Figur 4,

Fig. 5a

den Hülsengreifer gemäß Figur 5, jedoch mit einer konischen Leerhülse,

Fig. 6

in einem etwas größeren Maßstab einen Hülsengreifer in Hülsenübergabeposition, wobei aus Gründen der besseren Übersichtlichkeit auf die Darstellung der Halteplatten verzichtet wurde,

Fig. 7

den Basiskörper eines Hülsengreifers, teilweise im Schnitt,

Fig. 8

eine weitere, alternative Ausführungsform eines Hülsenzubringers.

It shows:

Fig. 1

a front view of a cross-wound producing textile machine, with inventive stationary sleeve feeders at the individual jobs,

Fig. 2

1 is a front view of the textile machine, wherein the sleeve feeder according to the invention is designed as an operating device which can be moved along the work stations;

Fig. 3

a side view of a sleeve feeder, the tube gripper is parked in the sleeve transfer position,

Fig. 4

the sleeve feeder according to Figure 3, wherein the tube gripper is in the sleeve transfer position,

Fig. 5

the tube gripper according to the viewing direction X of FIG. 4,

Fig. 5a

the tube gripper according to FIG. 5, but with a conical empty tube,

Fig. 6

in a slightly larger scale a tube gripper in sleeve transfer position, which was omitted for reasons of clarity on the presentation of the holding plates,

Fig. 7

the base body of a tube gripper, partly in section,

Fig. 8

a further, alternative embodiment of a sleeve feeder.

In Figures 1 and 2 is in front view of a cheeses producing textile machine, in the embodiment a Reel machine, shown and in total with the Reference number 1 marked. Such spoolers 1 usually have a large number of identical, between terminals 5 and 6 arranged jobs 2. The jobs 2 are in a row next to each other arranged and if necessary by a front of the textile machine. 1 arranged access from accessible.

On this, hereinafter also referred to as winding units 2 Jobs become, as known and therefore not closer explained, spinning cops 9 to large-volume cheeses 11th rewound. The spinning cops 9 are during the Umspulprozesses each positioned in Abspulstellungen 10, each in the range (not shown) so-called Cross transport lines are located.

As indicated in Figures 1 and 2, the United and Disposal of the winding units 2 via a coil and Sleeve transport system 3. On this coil and Sleeve transport system 3, of which in the figures 1 and 2 only the sleeve return path 7 is shown, run vertically on sleeve transport plates 8 the spinning cops 9 and the empty Kop sleeves 4.

Because the spinning cops not only rewound, but the thread also controlled during the rewinding process and when needed cleaned, each of the winding units 2 has one Number of special thread monitoring and Machining equipment, known per se and therefore not are explained in more detail.

The schematic representation of the individual winding units 2 is therefore limited in the figure 1 to the hint of the final product, a so-called cheese 11, a cheese drive roller 17 and a stationary Hülsenzubringers invention 12, which arranged with its base frame 20 at a running above the winding devices Traverse 21 is.
Each winding unit 2 also has a spülstelleneigen sleeve memory 13 for receiving a number of empty tubes 14, which are needed to produce a cross-wound bobbin 11.

As indicated in Figure 1, each winding unit has 2 of another own Spulstellenrechner 15, for example via a (not shown) bus system to a Central information 16 of the textile machine is connected.

The textile machine 1 shown in FIG. 2 differs from the textile machine according to Figure 1 only by the Formation of the sleeve feeder 12 according to the invention.

Instead of a plurality of stationary sleeve feeders 12 in the region of the individual winding units 2, only a single sleeve feeder 12 is provided here, which is designed as a mobile operating device 18. This operating device 18 is supported via a base frame 20 arranged on the chassis 63 on a path 64 which is installed above the winding units 2 of the textile machine 1.
The control unit 18 is preferably connected via a (not shown) bus line to the central information 16 of the textile machine 1 and can be used by the need for this at the individual jobs 2.

FIG. 3 shows a side view of a sleeve feeder 12 according to the invention.
The sleeve feeder 12 consists essentially of a base frame 20 which is fixed according to the embodiment of Figure 1 is rigidly attached to a traverse 21 of the automatic package 1, a base frame 20 attached to the sleeve memory 13 and a slidably mounted in the base frame 20 tube gripper 24th

That is, the base frame 20 has a slot guide 22 for slidably supporting the base body 31 of the tube gripper 24th
In addition, a shift linkage is arranged on the base frame 20, which is designated overall by the reference numeral 23. The shift linkage 23 consists in detail of a switching arm 25 with the pivot axis 26, a rotatably mounted in a pivot axis 27 drive arm 28 and an intermediate switching arm 25 and drive arm 28 intermediate linkage 29. The drive arm 28 is also characterized by a spring element 30, preferably one Tension spring, applied.

As can be seen from FIG. 3, the base body 31 of the tube gripper 24 is guided via sliding rollers 32 or the like in the slot guide 22 of the base frame 20.
On the base body 31 are also on the opposite side of the rollers 32 bearing brackets 33, 34, which have the pivot axes 37, 38 of the gripper finger pairs 35, 36 integrally formed. The gripper finger pairs 35, 36 are rotatably mounted limited in these pivot axes 37, 38 and connected via control linkages 39 and 40 with special connection elements 41, 42 on the base body 31.

The connecting elements 41, 42, the collar-like projection 47 is respectively overlapped by a slot 60 in tab-like slides 43 and 44 and a guide 65 in one of the holding plates 45 and 46, slide on guide rails 48 and 49, which are integrally formed on the base body 31.
The base body 31 has, as shown particularly in Figure 7, a downwardly open, preferably slotted receiving bore 50. In this receiving bore 50, a hollow body 51 is slidably mounted, the slot 52 of the receiving bore 50 through terminal connecting bracket 53 is connected to the drive arm 28 of the shift linkage 23. Within the hollow body 50, a pressure piston 54 is also slidably mounted, which is acted upon by a spring element 55. The Andrückstempel 54 has at its end a tiltable mounted in the direction of the longitudinal axis 57 of the sleeves 14 Andrückplatte 56, to which the tab-like slide 43 and 44 are connected.

The control of the sleeve feeder 12 is carried out either by the coil frame 19, which acts on the switching arm 25 of the switching linkage 23, or by separate drive 62, which, as indicated in Figure 8, is arranged on the base frame 20 of the sleeve feeder 12.
The designed in this case, preferably as an electric motor drive 62 ensures both the displacement of the tube gripper 24 within the base frame 20 as well as the functionally appropriate control of the tube gripper 24. Instead of a common drive 62 for displacement and actuation of the tube gripper 24 can of course also multiple drive be provided.
That is, the base frame may include a drive for moving the tube gripper 24 within the base frame 20 and another separate drive for actuating the tube gripper 24.
This variant is not shown in the drawing, however.

Function of the device, explained in the embodiment of Figure 1:
If at one of the winding units 2 of the automatic winder 1 a cheese 11 has reached its prescribed size (= predetermined diameter or thread length), which is detected by the associated Spulstellenrechner 15, the relevant winding unit 2 is stopped and the thread from the spinning cop 9 to the cheese 11 Running thread, as known, prepared for the creation of a new cheese.
Subsequently, the coil frame 19 is pivoted by a corresponding (not shown) drive from its winding position in a Spulenabgabeposition and pass the finished cheese 11 on a (not shown) behind the winding units 2, machine-long cheese transport means.

The tube gripper 24 of the sleeve feeder 12 is parked at this time in the sleeve take-over position I, which is shown in Figure 3.
That is, on the pivoted gripper finger pairs 35, 36 of the tube gripper 24 a new empty tube 14 is kept ready.
As indicated in FIG. 3, the gripper finger pairs 35, 36 are fixed in this position by the holding plates 45, 46.
That is, stops on the terminal bracket 53 of the hollow body 51 act on the angled rear sides 68 of the holding plates 45, 46 in the direction F. The holding plates 45, 46 are pivoted about its pivot point 59 such that the projection 47 of the connecting elements 41, 42, to the control linkages 39, 40 of the gripper finger pairs 35, 36 are hinged, each set in the angled part of the holding plate guide 65.

The coil frame 19 is after the delivery of the cheese 11 the cheeses transporting device again in the direction of his Spulposition swung back and acts on the Shift arm 25 of the shift linkage 23 in the direction E.

This pivoting movement of the switching arm 25 is transmitted via the intermediate linkage 29 to the drive arm 28, which is then in turn pivoted in the direction G down. The downwardly pivoting drive arm 28, which is connected to the terminal console 53 of the hollow body 51, displaces this hollow body 51 and thus stored in the hollow body 51 Andrückstempel 54 down until the hollow body 51 and thus the terminal console 53, the end position shown in Figure 4 occupies, in which the holding plates 45, 46 are released, which then in turn pivot about the pivot point 59 in the direction H.
During the lowering of the hollow body 51 of the Andrückstempel 54 is arranged with its end arranged, tiltably mounted pressure plate 56 on the empty tube 14.
That is, the spring element 55 arranged within the hollow body 51 acts on the empty sleeve 14 via the pressure-exerting punch 54 or the pressure-exerting plate 56, and the gripper-finger pairs 35, 36 via the empty tube 14.
Under the load of this loading, the gripper finger pairs 35, 36 pivot downwards and lift the connection elements 41, 42 via the control rods 39, 40. The adjustment of the connecting elements is limited by the slide 43, 44 and the slot recording 60.
That is, during the displacement of the tube gripper 24 from its sleeve receiving position I in its sleeve transfer position II, in which the base body 31 of the tube gripper 24 is displaced in the slot guide 22 of the base frame 20 in the direction V by the drive arm 28 in the slot guide 22, the projection 47 of the connecting elements settles 41, 42 at the upper edge of the elongated hole receiving 60 of the tab-like slide 43, 44, as shown for example in Figures 5 and 5a. The empty tube 14 is thereby positioned in a position in which its central longitudinal axis 57 coincides exactly with the axis of rotation 61 of the coil frame 19 arranged sleeve receiving plate 58 of the pivoted at this time also in the sleeve transfer position II coil frame 19.
By closing the coil frame 19, the empty tube 14 can now be taken easily and after the spinning cop 9 coming, as indicated above, held on the winding device thread to the empty tube 14 is fixed or clamped between the empty tube 14 and one of the sleeve receiving plate 58 of the coil frame 19, be lowered onto the cheese drive rollers 17.

In this lowering of the empty tube 14 on the drive roller 17th open the pairs of fingers 35, 36 against the spring force of the Spring element 55, that is, when pivoting the Coil frame 19 in its winding position comes the switching arm 25th the shift linkage 23 out of contact with the coil frame 19th The tube gripper 24 then moves under the influence of the Spring element 30 in its output shown in Figure 3 or output Basic position, which at the same time the Sleeve receiving position I represents, back.

When swinging into this sleeve receiving position I summarize the arranged in the region of the pivot axis 37 at Gripper fingers hinged drive sleeves 66 in the swivel arranged on the sleeve memory 13 closure and Transfer elements 67. The closure and transfer elements 67 are thereby pivoted so that the foremost of the Hülsenspeicher 13 stockpiled empty tube 14 on the Gripper finger pairs 35, 36 is transferred.

The change cycle is completed, the sleeve feeder 12th is ready for a new empty tube transfer.

Claims (17)

1. Tube feeder for a workstation of a textile machine producing crosswound bobbins with an apparatus which comprises a tube gripper for transferring an empty tube held in a tube store into a tube transfer position at which it is taken over by a pivotably mounted creel, characterised in that the tube gripper (24) of the tube feeder (12) is equipped with a control mechanism (39, 40; 41, 42; 43, 44; 56) which automatically adjusts the tube gripper (24) to the diameter and the shape of a taken up empty tube (14), whereby the central longitudinal axis (57) of the taken up empty tube (14), regardless of the shape or diameter of the empty tube (14), is displaced during the tube transfer so that the central longitudinal axis (57) in the tube transfer position (II) of the tube feeder (12) corresponds with the axis of rotation (61) of the tube receiving plate (58) arranged on the creel (19).
2. Tube feeder according to claim 1, characterised in that the tube gripper (24) is provided with a pressure stamp (54) displaceably mounted in the direction of the empty tube (14) and pairs of gripper fingers (35, 36) that are pivotable in a restricted manner about pivot axes (37, 38) and are connected with a pressure plate (56) tiltably mounted on the pressure stamp (54) via a control linkage (39, 40), connection elements (41, 42) and a control mechanism comprising slides (43, 44).
3. Tube feeder according to claim 2, characterised in that the pressure stamp (54), biased by a spring element (55), is cushioned in a hollow body (51), whereby the hollow body (51) in turn is slidingly guided in a receiving bore (50) of a base body (31) of the tube gripper (24).
4. Tube feeder according to claim 3, characterised in that a pivotably mounted driving arm (28) of a control linkage (23), that can be pressurised by the creel (19) of the workstation (2) concerned, is hinged onto a connecting bracket (53) of the hollow body (51).
5. Tube feeder according to claim 2, characterised in that the pressure plate (56) arranged on the end of the pressure stamp (54) and mounted tiltably with respect to the central longitudinal axis (57) of the empty tube (14) is connected via slides (43, 44), which each have an elongated receiver slot (60), to the pairs of gripper fingers (35, 36).
6. Tube feeder according to claim 5, characterised in that the slides (43, 44) each have elongated receiver slots (60) for delimiting the displacement path of slide-like connecting elements (41, 42).
7. Tube feeder according to claim 6, characterised in that the connecting elements (41, 42) are each connected by a respective control linkage (39, 40) to one of the pairs of gripper fingers (35, 36).
8. Tube feeder according to claim 7, characterised in that the pairs of gripper fingers (35, 36) can be controlled in a defined manner by the slides (43, 44), the connecting elements (41, 42) and the control linkages (39, 40).
9. Tube feeder according to claim 6, characterised in that the connecting elements (41, 42) are slidingly guided on guide rails (48, 49) of the base body (31) of the tube gripper (24).
10. Tube feeder according to claim 6, characterised in that the connecting elements (41, 42) can be secured by support plates (45, 46) in a position (S) in which the pairs of gripper fingers (35, 36) adopt a tube receiving position (I).
11. Tube feeder according to one of the preceding claims, characterised in that the base body (31) of the tube gripper (24) is displaceably mounted on a base frame (20) of the tube feeder (12).
12. Tube feeder according to claim 11, characterised in that a control linkage (23) is arranged on the base frame (20) of the tube feeder (12) which permits the displacement of the base body (31) of the tube gripper (24) and the defined actuation of the tube gripper (24).
13. Tube feeder according to claim 12, characterised in that the control linkage (23) has a control arm (23) which can be pressurised by the creel (19) of the workstation concerned (2).
14. Tube feeder according to claim 11, characterised in that the tube feeder (12) comprises an electric drive (62) in the area of the base frame (20).
15. Tube feeder according to claim 1, characterised in that the tube feeders (12) are arranged stationarily on a crossbar (21) of the textile machine (1) which is installed above the workstations (2) of the cheese-producing textile machine (1).
16. Tube feeder according to claim 1, characterised in that the tube feeder (12) is a component of a service unit (18) which can be moved along the workstations (2) of the cheese-producing textile machine (1), said service unit being able to be positioned as necessary at each of the workstations (2).
17. Tube feeder according to claim 16, characterised in that the service unit (18) is supported by means of a running gear (63) on a track (64) arranged above the workstations (2) of the cheese-producing textile machine (1) and is connected to a central information system (16) of the textile machine (1).

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