EP0483639A1 - Changing and transport system for tubes and cops with pallets, the pallets being equipped with these cops and tubes - Google Patents

Abstract

The object of the invention is to develop a bobbin changing and transport system in such a way that a reliable and rapid changeover of cops (3) and tubes (4) between different transport systems and pallets (1, 2) can take place. This object is achieved, according to the invention, in that a mixing stage (17) for the two types of pallet (1, 2), in which the two types of pallet (1, 2) are arranged nested in one another, is provided. The mixing stage (17) is limited by two exits (18, 19) for pallet (2) specific to a particular spinning machine into the transport path for pallet (1) specific to a particular winding machine. Within this mixing stage (17), a changeover of the cops (3) and tubes (4) to the other particular type of pallet (1, 2) can take place in groups. <IMAGE>

Description

The invention relates to a bobbin changing and transport system according to the features of the preamble of the first claim.

For about 20 years it has been known to place cops and sleeves on pallets for their transport, in particular to avoid damage to the upper thread layers of the cop and to automate the transport process.

Using such a transport system, it is also known to connect spinning and winding machines directly to one another. As an example, DE-OS 32 35 442 can be mentioned, which describes a spinning winder combination in which the pallets, which carry cops or sleeves, circulate in a closed loop between the two machines. It is necessary that both machines are matched to a given pallet size. The system is rigidly defined with this uniform pallet size. In particular if the manufacturer of the spinning machine and the manufacturer of the winding machine do not match, different pallet sizes and types are used. In this case, the transport system mentioned can no longer be used.

German patent application P 39 19 525.2 has already described a machine network between spinning and winding machines, which provides separate transport loops for winding machine-specific and spinning machine-specific pallets. These two transport loops have a contact area in which both types of pallets are arranged adjacent. This contact area has transfer devices for exchanging the cops and sleeves between the different types of pallets.

The object of the present invention is to propose a bobbin changing and transport system for sleeves and cops with pallets on which the cops and sleeves are placed, which enables a quick and safe exchange of the cops and sleeves between the two types of pallets.

This object is achieved by the characterizing features of the first claim.

The formation of a mixing section, in which the two types of pallets are arranged “nested”, allows a very quick and safe exchange of the cops and sleeves between the two types of pallets. The mixing and, after the changing process, the separation of the two types of pallets is carried out by arranging them in different levels in a simple and also very safe manner. For example, by exchanging the entrainment means for the form-fitting transport of the dishwasher-specific pallets, the mixing section can also be adjusted to different pallet dimensions without great effort. The bobbin changing and transport system is not only tailored to a direct machine network, but is also suitable, for example, for a flexible transport system with a transport trolley, as described, for example, in German patent application P 39 35 627.2. In this case, the mixing section would be between to arrange the transport carriage and the closed transport system of the spinning or winding machine.

The invention is advantageously further developed by the characterizing features of claims 2 to 14.

The form-fitting transport of the winding machine-specific pallets allows exact positioning within the mixing section. The nested arrangement of both types of pallet ensures an equally exact positioning of the spinning machine-specific pallets between the winding machine-specific pallets.

If the shoulders of the plug-in mandrels of the two types of pallets, which serve as a support for the base of the cops or sleeves, are arranged at approximately the same height in the mixing section, the cops or sleeves can be completely pushed back onto the new plug-in mandrels after the change. It is particularly advantageous if the arbors are designed so that the cops or sleeves are relatively tight.

Even though the feeding of the spinning machine-specific pallets between the winding machine-specific pallets occurs sufficiently quickly and safely when a backlog of several pallets on the feed belt occurs, a feed pivoting lever should be provided at least for the feeding of the last pallets, which no longer generate such a large pushing force due to the lack of back pressure will. However, this may also be necessary if the system is operated at high speed. The form-fitting tensioning of the feed swivel lever by the following pallet ensures precise movement coordination.

Likewise, controlling an ejector at the end of the mixing section for the spinning machine-specific pallets by means of positive clamping against the force of a spring has the same advantage.

The nested arrangement of the two types of pallets in connection with a graduated transport channel allows the safe separation of the two types of pallets without the use of sensors.

The transfer device must be able to lift the cops or sleeves vertically to such an extent that unhindered transfer is possible. The horizontal movement required for the transfer process can take place either from the transfer device itself or from the pallets arranged under the removed cops or sleeves. While the first variant is advantageous for gripping devices that grip the cops or sleeves approximately in the middle, the second variant is suitable for transfer devices that grip the sleeve tips. This results in particular from the fact that with a rapid horizontal movement of the cops and sleeves gripped at the tips of the sleeves, high moments of inertia occur.

Depending on the length of the mixing section and the number of grippers of the transfer device, a larger group of cops or sleeves can be exchanged. This fact is of particular importance in modern textile machines that require high throughput.

As the spinning machine-specific pallets are generally smaller than the winding machine-specific pallets, the priority for the winding machine-specific pallets and the insertion of the spinning machine-specific pallets between them was specified as the primary solution. However, that limits the In this respect, the invention does not include, that is, a forced guidance of spinning machine-specific pallets, between which winding machine-specific pallets are inserted, is also covered by the present invention.

Fig. 1

eine Draufsicht auf ein Spulenwechsel- und Transportsystem mit Zu- und Abführung beider Palettenarten und Mischstrecke,

Fig. 2

einen Ausschnitt zu Fig. 1 mit Mischstrecke, Zufuhrschwenkhebel und Auswerfer,

Fig. 3

den Ausschnitt gemäß Fig. 2 in einer nachfolgenden Bewegungsphase,

Fig. 3a/Fig. 3b

Detailansichten zu Fig. 3,

Fig. 4

den Ausschnitt gemäß Fig. 3 in einer weiter nachfolgenden Bewegungsphase,

Fig. 5a-Fig. 5e

eine schematische Darstellung des Umsetzvorganges in fünf Phasen,

Fig. 6

eine Draufsicht zu Fig. 5e,

Fig. 7

die Seitenansicht einer Variante einer Umsetzeinrichtung,

Fig. 8a/Fig. 8b

Seitenansichten einer einen Teil der Umsetzeinrichtung bildenden Greifeinrichtung in zwei Bewegungsphasen,

Fig. 9

die Seitenansicht einer weiteren Variante einer Umsetzeinrichtung,

Fig. 10

den Schnitt A-A zu Fig. 9,

Fig. 11

eine Seitenansicht zu Fig. 9 und

Fig. 12

eine Detailansicht eines Teiles einer Greifeinrichtung zur Variante der Umsetzeinrichtung der Fig. 9 bis 11.

The invention will be explained in more detail below using exemplary embodiments. In the accompanying drawings:

Fig. 1

a plan view of a bobbin changing and transport system with feed and discharge of both types of pallet and mixing section,

Fig. 2

1 with a mixing section, feed swivel lever and ejector,

Fig. 3

2 in a subsequent movement phase,

3a / Fig. 3b

3,

Fig. 4

3 in a further subsequent movement phase,

5a-Fig. 5e

a schematic representation of the implementation process in five phases,

Fig. 6

a plan view of Fig. 5e,

Fig. 7

the side view of a variant of a transfer device,

8a / Fig. 8b

Side views of a gripping device forming part of the transfer device in two movement phases,

Fig. 9

the side view of a further variant of a transfer device,

Fig. 10

the section AA to Fig. 9,

Fig. 11

a side view of Fig. 9 and

Fig. 12

a detailed view of a part of a gripping device for the variant of the transfer device of FIGS. 9 to 11.

1, dishwasher-specific pallets 1 which are covered with sleeves 4 are fed to the transport area of a chain 5 by a conveyor belt 8 along a transport path 7. The conveyor belt 8 is deflected by a deflection roller 8 '. The pallets 1 are guided along the transport path 7 on their base plates.

The supply of the pallets 1 to the transport area of the chain 5 takes place in the deflection area of the chain 5 formed by the chain wheel 5 '. Carriers 6 attached to the chain 5 at the same distance from one another protrude into the transport path of the pallets 1 and guide them positively through the transport section 7'. , the mixing section 17, the adjoining transport section 9 'to the transport track 9. For this purpose, the transport sections have slot guides 7' ', 17' and 9 '' which permit the passage of the drivers 6.

The chain 5 is deflected by the sprocket 5 ', by the sprocket 5'', by a tension roller 12 and a drive sprocket 11. The drive sprocket 11 is connected to a motor 15, which is connected via a control line 15 ' is controlled by a central control unit 16. A tension spring 13 acts on the tensioning roller 12 and is attached to a holder 14 at its other end. In this way, the chain 5 is always kept under tension.

While on the feed side of the dishwasher-specific pallets 1, the feeding between the carriers 6 of the chain 5 takes place without difficulty due to the dynamic pressure of the pallets 1 transported on the conveyor belt 8 by friction, these pallets 1 are carried by the carriers at the end of the forced guide section, the transport section 9 ' 6 pushed onto the conveyor belt 9 and taken over there by the conveyor belt 10. The conveyor belt 10 is deflected by the deflecting roller 10 '.

The pallets 1, which are positively guided in the transport section 7 ′, first arrive at an opening 18 of a transport track 20, on which pallet 2 specific to the spinning machine is transported by a conveyor belt 21. The transport track 20 is arranged at a height level that corresponds at least to that of the upper sides of the base plates of the pallet 1 specific to the winding machine. These pallets 1 have base-like structures 1 ', which form an intermediate space into which the spinning machine-specific pallets 2 can enter. This space results from the dimension of the base plates of the dishwasher-specific pallets 1, the dimensions of the drivers 6 and the diameter of the base-like structures 1 '. An adaptation to the dimensions of the spinning machine-specific pallets is easily possible, for example, by changing the base-like structures 1 'if pallets with exchangeable structures are used. However, it is also possible to place differently dimensioned removable rings on the base-like structures 1 '. Such interchangeable rings or structures for the pallets can serve different purposes, such as differentiating the pallets for different parts of the spools they carry.

The adaptation to different diameters of the base plates of the pallets 1 can be achieved by replacing the drivers 6. However, it is usually also necessary to replace or adjust the lateral guides of the pallets, which will be described later.

In the illustration in FIG. 1, an additional device for feeding the spinning machine-specific pallets 2 was dispensed with at the junction 18. This waiver is possible if either the conveyor belt 21 runs so fast that a sufficiently fast feeding of the pallets 2 between the base-like structures 1 'is ensured or the chain 5 is moved so clocked that it is between the foremost pallet 2 during insertion the dishwasher-specific pallets 1 at the junction 18 stops. However, it can also be assumed that if several pallets 2 jam at the junction 18 on the transport path 20, the dynamic pressure is so great that a safe insertion into the mixing section 17 starting at the junction 18 is possible.

Since the insertion process of the pallets 2 takes place in stages, as described below, the dynamic pressure generated on the transport path 20 can be sufficient even if the chain 5 is moved continuously during the introduction.

As can be seen in FIG. 1, an introduction process of a pallet 2 specific to a spinning machine has just been completed at the junction 18. It can also be seen that the foremost pallet 2 standing on the transport path 20 is in contact with the already inserted pallet 2, which she has moved to the position shown. When pallets 1 and 2 are transported further into the mixing section 17, the foremost pallet 2 standing on the transport track 20 already slides into the mixing section 17 in a first stage until it comes to rest against the base-like structure 1 'of the subsequent dishwasher-specific pallet 1 . Then it slides on this base-shaped structure 1 'further into the mixing section 17 until it has reached its central position in the mixing section 17, as is shown in FIG. 1 with reference to the preceding pallet 2. There is also the possibility that the complete reaching of the intended position in the mixing section 17 extends to just behind the mouth 18 when the last phase of the insertion movement by rounding off the cover plate 40 'shown in FIG. 2, for example is taken over with a leading edge 41.

In the area of the mixing section 17, a transfer device described later is arranged, which transfers the cops 3 and sleeves 4 to the respectively adjacent pallet of the other type. At the end of this mixing section 17, a further junction 19 is provided, which is arranged at the same height level as the junction 18. At this junction 19, a transport path 22 leaves the mixing section 17 and has a conveyor belt 23 which returns the pallet 2 specific to the winder to the spinning machine.

In order to discharge the spinning machine-specific pallets 2 from the mixing section 17 into the transport path 22, a fluid cylinder 24 serving as an ejector is provided according to FIG. 1, which is connected to the central control unit 16 via a control line 24 ′. This fluid cylinder 24 has a plunger 25 which is arranged at a height corresponding to the transport path 22. By means of this plunger 25 spinning machine-specific pallets 2 pushed out of the mixing section 17 and fed to the conveyor belt 23. The fluid cylinder 24 can also be controlled by a switch (not shown), which is actuated by the incoming winding machine-specific pallets 1, instead of by the central control unit 16. This allows a simple control of this fluid cylinder 24, which is also very precise.

From Fig. 1 it can also be seen that winding machine-specific pallets 1 carried along the transport path 7 carry empty sleeves 4, while after leaving the mixing section 17 these pallets 1 carry 1 cops 3. The spinning machine-specific pallets 2 brought up by the spinning machine on the transport track 20 initially carry cops 3, while after leaving the mixing section 17, that is to say after the transfer, onto the spinning machine-specific pallets 2, which are guided away from the mixing section on the transport track 22, sleeves 4 are attached. A detailed description of the conversion process is given below.

2 to 4 show three successive phases of the infeed or outfeed of spinning machine-specific pallets 2. A feed pivot lever 29 is used at the mouth 18. This feed pivot lever is intended to support the rapid feeding of the spinning machine-specific pallets 2 available on the transport path 20 into the mixing section 17. If the chain 5 moves relatively quickly and continuously in the in / out phase, that is, between the transfer operations, the pushing force of the conveyor belt 21 or the pallets 2 pent up thereon may not be large enough to ensure safe and fast infeed. In this case, the feed pivot lever 29 is in operation during the entire bobbin changing phase, that is, until the ring spinning machine has been completely cleared.

Alternatively, there is also the possibility of putting the feed pivot lever 29 into operation only for feeding the last pallet 2 specific to the spinning machine. This requirement arises from the fact that with a decreasing number of jammed pallets 2 in the transport path 20, the sum of the frictional forces on the conveyor belt 21 and thus the thrust force decreases.

The feed pivot lever 29 is rotatable about a pivot pin 30 arranged in a holder 31. A torsion spring is placed around this pivot pin 30, one leg 36 of which is attached to the holder 31, while the other leg 37 engages the feed pivot lever 29 (see also FIG. 3b). The torsion spring with the spring legs 36 and 37 transmits a torque in the clockwise direction to the feed pivot lever 29. In FIG. 2, after a pallet 2 has been introduced, it is pivoted the farthest in this direction since the pallet 2 specific to the inserted spinning machine-specific pallet 1 and upstream in the transport direction has passed a deflection curve 29 'of the feed pivot lever. At this point in time, the subsequent winding machine-specific pallet 1 already reaches the deflection curve 29 '.

As can be seen from FIG. 3, this leads to the chain 5 continuing to move, and thus the latter moving closer to the latter-mentioned dishwasher-specific pallet 1, for pivoting the feed pivot lever 29 counterclockwise against the spring force. In order to prevent this next swiveling back that the next available spinning machine-specific pallet 2 is again moved away from the mouth 18 by a certain amount, the feed swiveling lever 29 has a tilting lug 32 at this front end. This tilting lug 32 is connected to the feed swiveling lever 29 via a pivot pin 39 appropriate. A torsion spring, which has the spring legs 33 and 34, normally holds the tilting lug 32 in the extended position, as shown in FIGS 2 and 4 can be seen. In this extended position, the tipping nose strikes with its straight rear edge on a stop edge 35 of the feed pivot lever 29. This limits their swivel path in this direction.

From the illustration in Fig. 3 it can be seen that the tilting nose 32 is pivoted counterclockwise against the spring force during the return movement of the feed pivot lever 29, whereby it can easily pass through the pallet 2 waiting on the conveyor belt 21. It is advantageous if the spring force is not too great so that the pallet 2 is not pushed back against the transport direction of the conveyor belt 21. However, the spring force must be sufficient to move the tilting lug 32 back into its starting position after passing through this pallet 2. Since the tipping lug 32 strikes against the stop edge 35 in the working phase of the feed pivot lever 29, that is to say when a pallet 2 is being fed into the mixing section 17, it cannot tip backwards. Sufficient thrust is thus exerted on the pallet 2 to be introduced.

In Fig. 4 it can be seen that the winding machine-specific pallet 1 resting on the deflection curve 29 'of the feed swivel lever 29 has meanwhile been transported so far that the feed swivel lever 29 reaches its maximum counterclockwise deflection by pure positive locking.

The phase shown in FIG. 4 is then followed again by the phase shown in FIG. 2, that is to say, the aforementioned dishwasher-specific pallet 1 leaves the deflection curve 29 ', as a result of which the spring having the spring legs 36 and 37 extends the feed pivot lever 29 into the position shown in FIG 2 recognizable position swiveled. The point in time of the pivoting is precisely due to the positive control of the feed pivoting lever 29 on the arrival of the by the base-shaped structures 1 'of matched two dishwasher-specific pallets 1 formed gap at the mouth 18. This exact coordination also makes it possible to let the chain 5 run relatively quickly. This results in high productivity of the entire cop changing process.

In relation to the junction 19, an ejector lever 26 can also be pivoted about the axis of rotation of a pivot pin 28. The pivot pin 28 is mounted in a holder 27. A torsion spring 38 acts on the ejector lever 26 and is anchored with its other spring leg in the holder 27 (see also FIG. 3a). This torsion spring works counterclockwise. As a result, the ejector lever 26 is constantly spring-loaded in the direction of the junction 19. In Fig. 2 it can be seen that the ejector lever 26 just loses contact with the base 1 'of a winding machine-specific pallet 1. As a result, as can be seen from FIG. 3, the pallet 2 specific to the spinning machine can be ejected into the transport path 22, on which it is then fed back to the spinning machine by means of the conveyor belt 23. In Fig. 3 it can already be seen that after ejecting the spinning machine-specific pallet 2 from the mixing section 17, the next winding machine-specific pallet transported by means of the chain 5 begins with its base-like structure 1 ', the ejector lever 26 again against the force of the torsion spring 38 To pivot clockwise. 4 then shows a later phase of pivoting, but the ejector lever 26 is still resting on the base-like structure 1 'of the mentioned dishwasher-specific pallet 1. This position is then followed by the phase shown in FIG. 2 and already described.

As can be seen from FIGS. 2 to 4 and the sectional view in FIGS. 8a and 8b, there are stepped guide edges 40 and 41, each for the winding machine-specific pallets 1 and the spinning machine-specific pallets 2 intended. These guide edges are each arranged at such a distance from one another that they guide the respective pallets on the lateral surface of their base plates. Between these two essentially perpendicular guide plates 40 and 41, a cover plate 40 'is arranged, which connects the two guide plates 40 and 41. A further inwardly facing cover plate 42 connects to the guide plate 41. The cover plates 40 'and 42 are provided for secure guidance of the two types of pallets in the mixing section 17, especially for the transfer process of the cops and sleeves. These cover plates absorb the vertical forces when the cops and sleeves are removed. The cover plates 40 'also serve to guide the dishwasher-specific pallets 1 outside the mixing section 17, in particular to prevent them from tipping over.

As can be seen from FIGS. 2 to 4, the guide edges 40 are continuous and extend beyond the mixing section 17 on both sides. In this way, the winding machine-specific pallets are always guided in a form-fitting manner and therefore always assume defined positions. Especially in the area of the mouths 18 and 19, it is important that the vertical guide plates 40 are present when the dishwasher-specific pallets 1 are used for the positive movement transmission to the ejector lever 26 and the feed pivot lever 29.

While the tops of the base plates of the dishwasher-specific pallets 1 form the support surface for the spinning machine-specific pallets 2 within the mixing section 17, support plates 40 ″ adjoin the guide plates 40 above the cover plates 40 ′ and serve as supports for the dishwasher-specific pallets 1 and a guide slot, respectively form slot-shaped passage opening 17 'for the drivers 6 of the chain 5 (Fig. 8a / 8b).

The transfer process of the cops 3 and sleeves 4 to the respective other type of pallet according to a variant of the invention will be explained below with reference to FIGS. 5a to 5e.

The starting point for the conversion process is shown in FIG. 5 a, a conversion device 43 being shown here only schematically at first. 5a, there is an empty pallet 1 specific to the winder, as shown in FIG. 5a. The relocating device 43 has already been lowered in order to grip the cops 3 and sleeves 4 at their sleeve tips. As can then be seen from the illustration in Fig. 5b, the captured cops 3 and sleeves 4 are lifted over the arbors of both types of pallets. It should be noted that the lifting is only necessary to a height at which the sleeve feet are arranged above a plane intended by the tips of the mandrels of both types of pallet.

Fig. 5c shows that the chain 5 has been moved back by half a pitch, whereby the raised cops 3 and sleeves 4 are positioned over the adjacent pallets of the other type. The conversion device 43 does not need to carry out a horizontal movement for this. 5d then shows the step of lowering and attaching the cops 3 and sleeves 4 to the other type of pallet. This now results in an empty pallet 1 specific to the winding machine at the end of the transfer path. The transfer device 43 then releases the cops and sleeves and returns to their upper position, that is to say the rest position. In FIG. 5e the renewed forward transport of the pallets by half a division is already shown, whereby the introduction and removal of spinning machine-specific pallets 2 at the mouths 18 and 19 is initiated. The Chain 5 is moved in its normal transport direction until the empty dishwasher-specific pallet 1 has reached the position according to FIG. 5a.

All of these movements are coordinated via the central control unit 16, which also drives the chain 5 in its normal transport direction until this position according to FIG. 5a is reached. This can be controlled very precisely with the help of the chain 5, which is driven by the drive sprocket 11. For example, the drive sprocket 11 can be rotated for further transport by a pitch that corresponds to the distance between the drivers 6. The duration of the movement of the chain 5 in its normal transport direction depends on the size of the transfer device 43, that is, the number of gripping devices.

FIG. 6 shows a schematic top view of the illustration according to FIG. 5e.

FIG. 7 shows a variant of a transfer device 43 which can be used according to the invention. FIGS. 8a and 8b show detailed representations to illustrate the gripping mechanism as a side view.

The representation in FIG. 7 corresponds to the phase of the conversion process shown in FIG. 5d. The conversion device 43 is attached to the machine frame 60 via supports 49 and 49 '. A crossmember 50 is mounted on the two supports, on which holders 51 for grippers 44 are fastened. If the transfer device 43 is to be convertible for different pallet sizes, it is advantageous, but not shown here, to releasably connect the holders 51 to the cross member 50, for example by means of clamp connections.

The brackets 51 have two legs 51 'and 51' ', which are arranged in parallel and guide shift rods 52 and 53 longitudinally. Grippers 44 are attached to the shift rods 52. These shift rods consequently serve for the direct transmission of the vertical movement of the grippers 44. A shift rail 54 is provided for transmitting this movement and has contact with all shift rods 52 of the individual grippers 44. The shift rods 52 are held against the shift rail 54 by the force of compression springs 57, which are each supported on the leg 51 ″, via the collar 52 ′. The shift rail 54 is attached to plungers 48 and 48 'of fluid cylinders 46 and 46'. These fluid cylinders are connected to a changeover valve 67, which in turn is connected to the central control unit 16 via a control line 67 '.

In the illustrations in FIGS. 7, 8a and 8b, the plungers 48 and 48 'are extended, as a result of which the grippers 44 assume their lowest position. If the fluid cylinders 46 and 46 'are actuated via the valve 67, the tappets 48 and 48' are retracted, as a result of which the springs 57 move the switching rods 52 upward, in order to move the grippers 44 in the vertical direction.

A clamping device, which acts on clamping lever 63, can be actuated independently of the lifting movement of the grippers 44. For this purpose, fluid cylinders 45 and 45 'are provided, which are controlled via a valve 68. The valve 68 is also connected to the central control unit 16 via a control line 68 '. The fluid cylinders 45 and 45 'have plungers 47 and 47', on which a switching rail 55, which is common to all grippers, is fastened. This shift rail 55 acts on shift rods 53 of the individual grippers that operate the clamping levers 63. The clamping levers 63 are rotatably mounted in the grippers 44 via bolts 64. About pivot pins 62 are the Clamping lever 63 connected to the shift rods 53. In the clamped state (FIG. 8a), the clamping levers 63 are pivoted counterclockwise around the bolt 64. The clamping force is generated by a compression spring 59, which is also supported on the leg 51 ″ and acts on the collar 58 of the shift rod 53. Another collar 61 serves to limit the stroke movement of the shift rod 53. If, for example, no sleeve is arranged in the receiving opening 65 for the sleeve tip, the compression spring 59 moves the shift rod 53 further up than can be seen in FIG. 8a. The collar 61 then abuts a stop 66 of the gripper 44.

If, as shown in Fig. 8b, the valve 68 is actuated so that the plungers 47 and 47 'are extended by the fluid cylinders 45 and 45', the shift rail 55 moves the shift rods 53 downward against the force of the compression springs 59. As a result, the clamping levers 63 are pivoted clockwise around the bolts 64 and release the respective sleeve tip.

As an alternative to the described transfer device, in which the sleeve tips are clamped from the outside, a transfer device can also be used, the gripping members of which are inserted into the sleeves and, for example, acted upon with a pressure medium, whereby they are supported on the inner walls of the sleeves. Such gripping members are known, for example, from DE-OS 17 10 054, which is why a more detailed description can be dispensed with here. Their alternative application is particularly advantageous when cops are to be implemented, the winding of which extends to the upper edge of the sleeve.

Another variant of a transfer device is shown in FIGS. 9 to 12. This transfer device differs from those previously described in that the cops or sleeves laterally approximately in the middle of it Longitudinal expansion can be detected. Since this position also corresponds approximately to the center of gravity of the cops or sleeves, no or hardly any moments of inertia occur in the event of a horizontal offset. As a result, such a transfer device is also suitable for transmitting a very rapid horizontal movement to the cops and sleeves without problems. Thus, the backward movement of the chain 5 by half a division during the transfer process can be replaced by a forward movement of the transfer device in the transport direction of the chain 5. In contrast to the conversion devices described so far, this does not require a high clamping force since, as already explained, moments of inertia can hardly be overcome. With such a transfer device, the wear of the chain 5 can be reduced, which only has to be driven in one direction, only with the interruption during the transfer process.

Trusses 78 are attached to a bridge 69 and carry fluid cylinders 79 and 80 for cops 3 and sleeves 4. Analogously to the brackets 51, these fluid cylinders 79 and 80 can also be fastened detachably or displaceably to the cross members. For this purpose, the traverses 78 could have elongated holes (not shown here) through which fastening screws for the fluid cylinders 79 and 80 could protrude.

Grippers 81 for heads 3 and 82 for sleeves 4 are attached to the piston rods of the fluid cylinders 79 and 80. As shown in FIG. 12, these grippers can have a V-shaped gripping surface which has a rubber coating 83.

The stroke of the grippers 81 for the cops 3 and the grippers 82 for the sleeves 4 can be chosen the same. In this case, as can also be seen from FIG. 10, the fluid cylinders 79 and 80 would have identical dimensions. However, there is one Stroke size to choose that the gripper 82 forming a smaller opening for the sleeves 4 in the closed position are moved so far outward in the open position that they are not a hindrance to the transport of the cops 3 along the mixing section 17. However, it is also possible to choose a larger stroke for the grippers 82 than that of the grippers 81. The fluid cylinders 79 and 80 can advantageously be controlled via common valves. Lines 79 'in FIG. 11 are only intended to indicate that the fluid cylinders are controlled by the central control unit 16. Valves have not been shown.

The bridge 69, which carries all gripping devices, is fastened to a piston rod 71, which in turn is displaceable in a fluid cylinder 70. The fluid cylinder 70 can also be controlled by the central control unit 16 via a control line 70 ′. By actuating it, the vertical movement of all grippers is effected.

In order to ensure the horizontal movement of the transfer device, the fluid cylinder 70 is attached to a trolley 74 which can be moved on rails 75 by means of rollers 73. The rollers 73 are driven by common shafts 74. In order to achieve an exact positioning of the trolley 72, the rollers 73 and the rails 85 can have interlocking teeth. It is also possible, but not shown here, to make stops for the trolley 72 on the rails 75 in order to fix the two dead centers of the movement of the trolley 72. One of the two shafts 74 for the rollers 73 is driven by a motor 76 via a gear 77. This motor is also actuated by the central control device 16 via a control line 76 '. The movement of the trolley 74 can be controlled in very different ways. For example, the trolley could be attached to a chain at both ends be deflected over sprockets arranged outside the range of motion of the trolley. One of these sprockets could then also be coupled to a drive. However, since the transmission of such movement components involves devices known in mechanical engineering, further variants are not discussed in detail.

Claims (14)

Spool changing and transport system for sleeves and cops with pallets, on which the cops and sleeves are placed, the pallets being winding machine-specific or spinning machine-specific, and a contact area of transport paths of both types of pallets is provided, in which these can be arranged adjacent, this contact area At least one transfer device is assigned, with the aid of which the sleeves supplied by the winding machine can be detected and exchanged between the two types of pallets and the contact area consists of a mixing section common to the two tranpsort loops, in which both types of pallets are arranged alternately,

characterized by

that the mixing section (17) is delimited by an inlet and outlet-side mouth (18, 19) of the transport loop for the spinning machine-specific pallets (2), and that these mouths open at a height level in the said transport section, at least that of the top sides corresponds to the base plates of the dishwasher-specific pallets in the horizontal plane formed in the mixing section. Bobbin changing and transport system according to claim 1, characterized in that the mixing section (17) is part of a transport section of the winding machine-specific pallets (1), that this transport section has driving means (6) for transporting the winding machine-specific pallets, through which these pallets are exactly and in the same way Can be positioned at a distance from one another such that this distance is so large, at least in the area of the mixing section, that the distance formed between base-like structures (1 ') on the base plates of the winding machine-specific pallets corresponds at least to the diameter of a base plate of a spinning machine-specific pallet (2). Bobbin changing and transport system according to claim 2, characterized in that the driving means (6) for carrying out a form-fitting transport of the winding machine-specific pallets (1) are formed by drivers arranged at a fixed distance. Spool changing and transport system according to one of claims 1 to 3, characterized in that the vertical distance between the top of the base plates of the winding machine-specific pallets (1) to a shoulder serving as a support for the sleeve base of the cops (3) or sleeves (4) The arbor of these pallets corresponds to the vertical distance between the underside of the base plates of the spinning machine-specific pallets (2) for their shoulder of the arbor. Bobbin changing and transport system according to one of claims 1 to 4, characterized in that a feed swivel lever (29) is arranged at the mouth (18) of the transport loop for the spinning machine-specific pallets (2), which feeds these pallets into the mixing section (17 ) supports. Bobbin changing and transport system according to claim 5, characterized in that the pivot point (30) of the feed pivot lever (29) is arranged in the triangle formed by the feed sides of both transport loops and that it is due to the transport movement of the Dishwasher-specific pallets (1) can be clamped positively against the force of a spring (36, 37). Bobbin changing and transport system according to one of claims 1 to 6, characterized in that an ejector (24, 25; 26) is arranged on the discharge-side junction (19) of the transport loop for the spinning machine-specific pallets (2). Spool changing and transport system according to claim 7, characterized in that the ejector is formed by a plunger (25) which is displaceable by an actuating device (24) arranged opposite the mouth (19). Bobbin changing and transport system according to claim 7, characterized in that the ejector is formed by a pivoting lever (26), the pivot point (28) of which is arranged opposite the junction (19) and which is positively locked against the by the movement of the winding machine-specific pallets (1) Force can be tensioned by a torsion spring (38). Spool changing and transport system according to one of claims 1 to 9, characterized in that along the mixing section (17) a transport channel graded to the different diameters of the two types of pallets is formed by longitudinal pallet guides (40, 41). Bobbin changing and transport system according to one of claims 1 to 10, characterized in that the transfer device (43) has an even number of grippers (44; 81, 82) arranged at the same distance from one another for gripping the cops (3) or sleeves (4) , which can be moved vertically together by at least such an amount that they lift the cops or sleeves with their sleeve feet up to a horizontal plane that extends over the tips of the Mandrels of both types of pallets are in the mixing section. Bobbin changing and transport system according to one of claims 1 to 11, characterized in that a circuit is present which controls the drive of the driving means (5, 6) for the form-fitting transport of the winding machine-specific pallets (1) in such a way that after moving the cops and Sleeves on the plug-in mandrels of the other pallet type in front of them in the transport direction, the entrainment means corresponding to the number of grippers are moved in the transport direction with constant loading and unloading of spinning machine-specific pallets (2) until the front gripper has passed an empty dishwasher-specific pallet and that another Circuit is present, which generates a readiness message for the commissioning of the transfer device (43) after completion of this transport phase. Bobbin changing and transport system according to claim 12, characterized in that a switching connection between the transfer device (43) and the driving means (5, 6) is provided, which after moving the ready signal the movement of the grippers (44; 81, 82) in their working position, the Detecting the cops and sleeves by the grippers and lifting the sleeves and copes, then moving the driving means backwards by half a division, lowering and opening the grippers again and moving them back to the rest position and a readiness message for the renewed driving of the driving means Outputs transport direction. Bobbin changing and transport system according to claim 12, characterized in that a switching connection between the transfer device and the driving means is provided, which After notification of readiness, the movement of the grippers into their working position, the grips and sleeves being gripped by the grippers, their lifting and moving in the transport direction of the transport means by half a division, the renewed lowering and opening of the grippers and their return movement to the rest position are controlled and issues a readiness message for the renewed drive of the driving means in the transport direction.

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