DE102020122682A1 - Bobbin frame of a winding device of a textile machine producing cross-wound bobbins - Google Patents

Abstract

The invention relates to a creel (18) for a bobbin winding device (24) of a textile machine (1) producing cross-wound bobbins, having a speed-controllable drive device (27) integrated in a bearing arm (17) of the creel (18), to which a first tube receiving plate (32 ) and a second tube receiving plate (33) which is rotatably mounted in the opposite bearing arm (41) of the creel (18) and which is acted upon by a spring element (49) whose spring force is directed parallel to the axis of rotation (50) of the drive device (27). that the bobbin tube (43) of a cross-wound bobbin (11) clamped between the two tube receiving plates (32, 33) is frictionally held. In order to prevent the bobbin tube (43 ) of the cross-wound bobbin (11) when braking the cross-wound bobbin (11) loses its frictional connection and moves in the tube receiving plates (32, 33), is erfi According to the invention, the bearing arm (41) in which the second tube receiving plate (33) is rotatably mounted is equipped with a pneumatic cylinder device (45) which makes it possible to apply the clamping force (K) with which the bobbin tube (43) of the cross-wound bobbin (11) is held between the sleeve receiving plates (32, 33), to vary as required.

Description

The invention relates to a creel for a winding device of a textile machine producing cross-wound bobbins, with a speed-adjustable drive device integrated into a bearing arm of the creel, to which a first tube receiving plate is connected in a rotationally fixed manner and a second tube receiving plate rotatably mounted in the opposite bearing arm of the creel, which is supported by a spring element whose Spring force is directed parallel to the axis of rotation of the drive device, is acted upon in such a way that the bobbin tube of a cross-wound bobbin clamped between the two tube receiving plates is held by friction.

In order to produce a proper cross-wound bobbin, it is known to be necessary on the one hand to rotate the bobbin and at the same time to traverse the thread running onto the surface of the bobbin. Winding devices that meet these indispensable requirements are known in various, sometimes very different, embodiments and are sometimes described in detail in the patent literature.

It is state of the art, for example, to equip the winding devices of textile machines that produce cross-wound bobbins with so-called thread guide drums, which are either part of a machine-long drive shaft or are acted upon by so-called individual drives. The bobbins, which are held rotatably between the bearing arms of a bobbin frame during the winding operation, lie on the associated thread guide drum. This means that the thread guide drum rotates the bobbin lying on it with frictional engagement and at the same time traverses the thread running onto the surface of the bobbin.

In such winding devices, the coil is lifted off the thread guide drum in the event of a winding interruption, for example due to a thread breakage or to eliminate a thread fault, and runs to a standstill. After the thread breakage or thread fault has been eliminated, the bobbin is either lowered back onto the still rotating thread guide drum, or there is a wait until the thread guide drum has come to a standstill, which can take a relatively long time.

through the DE 196 50 932 A1 winding devices are also known in which the bobbins each rest frictionally on a yarn guide drum during the winding operation and are rotatably supported between the bearing arms of a bobbin frame.

The creel has a pneumatic braking device in the area of one of its bearing arms, which ensures that the cross-wound bobbin is brought to a standstill relatively quickly and, if necessary, can be controlled in pulses so that a cross-wound bobbin stuck in the creel can be released and replaced.

Also in the DE 10 2013 008 112 A1 describes a winding device in which the cheese is driven by a thread guide drum and one of the bearing arms of the creel is equipped with a pneumatically operated braking device. The braking device can not only brake a cheese to a standstill in a relatively short time after it has been lifted from the thread guide drum, but can also drive the cheese pneumatically in the unwinding direction in order to enable the pick-up of a thread end that has run onto the surface of the bobbin after a winding interruption.

In connection with winding devices whose thread guide drums are driven by a single motor, it is, for example, by the DE 198 36 701 A1 Also known to brake a yarn guide drum electrically to a standstill after lifting the cheese. This means that the drive motor of these thread guide drums can be subjected to a braking current which is usually a multiple of the rated current of the drive motor and which ensures that the thread guide drum is braked effectively.

However, such winding devices working with thread guide drums have various disadvantages. With such thread guide drums, for example, only the production of cheeses in the winding type "random winding" is possible. In addition, such yarn guide drums are quite expensive to manufacture.

In order to be able to create cross-wound coils not only with the winding type "random winding", but also with the winding types "precision winding" or "stepped precision winding", winding devices have already been developed in the past, in which the drive of the cross-wound coil and the drive the device for traversing the incoming yarn are separate.

In such winding devices, the rotation of a bobbin that is freely rotatably mounted between the bearing arms of a bobbin frame can be effected, for example, by a so-called bobbin drive roller, while a belt or finger thread guide, for example, is used as a thread traversing device.

Furthermore, for example in the DE 199 08 093 A1 describes a winding device in which a cheese held in a creel is driven directly by a drive motor integrated in the creel. The cross-wound bobbin lies on a so-called pressure roller, which itself is not driven. In this known winding device, the yarn to be wound is traversed preferably by means of a finger-like yarn guide which is acted upon by a separate drive. The two drives can be controlled via a corresponding control device in such a way that a defined, predeterminable turns ratio is always set during the winding operation.

Since a cheese often has to be brought to a standstill in the course of a bobbin cycle, as already indicated above, for example when a supply bobbin runs out, in the event of a thread break or after a controlled thread clearer cut, the known winding device also has a brake device that is integrated into the bobbin drive and can be actuated pneumatically , which has a non-rotatably arranged brake pad on the stator housing of the coil drive, which can be pneumatically pressed against a contact surface, designed as a brake disc, of a sleeve receiving plate. The resulting braking torque brings the bobbin drive and the cross-wound bobbin to a standstill in a short time.

However, the winding device according to DE 199 08 093 A1 a number of disadvantages. This means that both the rotating brake disc and the stationary brake lining are subject to considerable wear and are therefore relatively maintenance-intensive. In addition, the resulting brake dust can easily get into the axial sliding guide of the coil drive and into the bearings of the electric motor and lead to the failure of these components.

In the DE 100 40 106 A1 a winding device is also described in which the cheese drive device integrated in one of the bearing arms of a creel can be acted upon for braking with a braking current which generates a moment which is directed opposite to the direction of rotation of the drive device and the cheese. The drive device is also slidably arranged in a slide bushing and can be moved outwards if necessary against the force of spring elements. This means that the associated tube receiving plate can be moved in the sense of "opening the creel".

With such winding devices, which are equipped with drives and braking devices integrated in the creel, the dynamics of the cheeses required during a winding process could be significantly improved, i.e. the time required to wind a cheese after a winding interruption to slow down to a standstill, as well as the time that elapses before a cheese is accelerated again to operating speed, can be significantly reduced, however, the problem often arises, especially when braking the cheese, that the drive or the associated braking device via the tube receiving plate braking torque transmitted to the bobbin tube of the cross-wound bobbin is greater than the frictional torque that exists between the tube receiving plates and the bobbin tube, with the result that the bobbin tube rotates in the tube receiving plates. However, since such a relative movement between the tube receiving plates and the tube spool can lead to damage both to the tube spool and to the tube receiving plates, such relative movement should be avoided as far as possible.

Proceeding from the aforementioned prior art, the object of the invention is to improve the known winding devices of textile machines that produce cross-wound bobbins in such a way that it is ensured that the bobbin tubes are always held in the associated tube receiving plates in a torque-proof manner, especially during the braking processes that are often necessary in the course of a winding process are.

This object is achieved according to the invention in that the bearing arm, in which the second tube receiving plate is rotatably mounted, is equipped with a pneumatic cylinder device which makes it possible to vary the clamping force with which the tube receiving plate acts on the tube of the cross-wound bobbin as required.

Advantageous configurations of the invention are the subject matter of the dependent claims.

The embodiment according to the invention has the particular advantage that the clamping force acting on the bobbin tube can always be optimally adjusted by means of the cylinder device, and this reliably prevents the rotational energy of the cross-wound bobbin from damaging the static friction between the bobbin tube and the tube receiving plates when the drive device of a winding device is braked exceeded, which would cause the bobbin tube to rotate in the tube-mounting plates. Such a rotary movement between the bobbin tube and the tube receiving plates leads not only to damage to the bobbin tube, but also to damage to the tube receiving plates in the long run. In an advantageous embodiment it is provided that the pneumatic cylinder device is designed such that the second sleeve receiving plate in If necessary, can be applied to the bobbin of the cheese with an increased clamping force. The cylinder device according to the invention reliably ensures, with appropriate control in conjunction with an associated spring element, that the bobbin tube held between the tube receiving plates in a non-positive manner is held without slipping, especially when the drive device is braked, and the cross-wound bobbin can be reliably braked to a standstill in the shortest possible time. This means that when the cheese is braked, the cylinder device is pneumatically loaded in such a way that the associated tube receiving plate is applied to the bobbin tube with increased clamping force and the bobbin drive device can therefore reliably brake even large-volume cheeses to a standstill in the shortest possible time.

If necessary, however, the cylinder device can also be switched in such a way that the creel can be opened without any problems and the cross-wound bobbin can be removed. This means that the second tube receiving plate is mounted in a bearing arm of the creel in a bearing device in such a way that it can be moved into the bearing device against the actuating force of a spring element.

In a first advantageous embodiment, the second sleeve receiving plate is rotatably mounted by means of a double ball bearing device, with the outer ring of the double ball bearing device being fixed in a slide bushing, which is mounted in a bearing sleeve in an axially displaceable manner and is acted upon by a spring element in the direction of the sleeve receiving plate. The bearing sleeve and the sliding bush are designed in such a way that between them there is a pressure-tight annular space of a pneumatic cylinder device that can be pressurized in a defined manner. This means that during the "normal" winding process, the second tube receiving plate is only acted upon by a spring element whose spring force is directed parallel to the axis of rotation of the cheese and which ensures that a cheese arranged between the tube receiving plates is securely clamped by friction. When a braking process is initiated, the pressure-tight annular space of the cylinder device is also pressurized, which means that the clamping force with which the tube-receiving plate rests against the bobbin tube is significantly increased.

Advantageously, the annular space of the pneumatic cylinder device is connected to a compressed air source via a pneumatic line into which a valve is switched, the valve being controllable by means of a control device in such a way that the annular space is pressurized in a defined manner if necessary and the second sleeve receiving plate is then subjected to an increased clamping force is applied to the bobbin case of the cross-wound bobbin.

In an alternative embodiment, it is also provided that the second sleeve receiving plate is rotatably mounted by means of a double ball bearing device and the outer ring of the double ball bearing device is fixed in a sliding bush, which is mounted in a bearing sleeve in an axially displaceable manner and is acted upon by a spring element in the direction of the sleeve receiving plate. However, the bearing sleeve and the sliding bush are designed and mounted here in such a way that in front of the bearing sleeve and the sliding bush there is a pressure-tight piston chamber of a pneumatic cylinder device that can be pressurized in a defined manner.

In this alternative embodiment, too, the piston chamber is advantageously connected to a compressed air source via a pneumatic line, into which a valve is switched on, and the valve can be controlled by means of a control device in such a way that the piston chamber can be pressurized if necessary and the second sleeve receiving plate can thus be pressed against the bobbin sleeve with increased clamping force the cheese can be applied.

In a further advantageous embodiment of the invention, it is also provided that the spring element, which acts on the sliding bush in which the outer ring of the double ball bearing device is fixed, in the direction of the sleeve receiving plate, is designed as a helical spring. The helical spring is supported on a wall of the stationary bearing sleeve and, as already mentioned above, permanently loads the sliding bush in the direction of the second sleeve receiving plate. This means that the helical spring ensures that the tube holder plates are applied to the bobbin tube with a sufficiently large clamping force during "normal" winding operation.

As is known, such helical springs are high-volume components that can be purchased relatively inexpensively and that have already proven themselves many times in mechanical engineering.

Furthermore, it is advantageous if the valve, which is switched into the pneumatic line, is designed as an electromagnetic valve which has a switching magnet that can be controlled by a winding position computer. By using such a tried and tested electromagnetic valve, a defined activation of the cylinder device of a creel by a winding unit computer is made possible in a simple and reliable manner. In other words, a sleeve that is rotatably mounted in a bearing housing of the creel in a double ball bearing device and a sliding bush that is mounted so that it can move axially If necessary, the bobbin holder plate can be pneumatically actuated at any time in such a way that the bobbin holder plate is applied to the bobbin case with increased clamping force.

Electromagnetic valves of this type are also tried and tested, mass-produced components that can be purchased relatively cheaply on the market.

Further details of the invention can be found in the exemplary embodiments explained below with reference to the drawings.

• 1 schematisch in Vorderansicht eine Kreuzspulen herstellende Textilmaschine, wobei die Arbeitsstellen jeweils mit einer Spulvorrichtung ausgestattet sind, deren Spulenrahmen die erfindungsgemäße Ausbildung aufweist,
• 2 in Seitenansicht eine Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine, gemäß Schnitt II - II der 1,
• 3 in Vorderansicht einen erfindungsgemäß ausgebildeten Spulenrahmen einer Spulvorrichtung einer Arbeitsstelle,
• 4 im Schnitt eine Lagereinrichtung eines zweiten Hülsenaufnahmetellers, mit einer erfindungsgemäß ausgebildeten Zylindereinrichtung, in einer ersten Ausführungsform,
• 5 eine alternative Ausführungsform der in 4 dargestellten Lagereinrichtung des zweiten Hülsenaufnahmetellers, ebenfalls im Schnitt.

It shows:

• 1 a schematic front view of a textile machine producing cross-wound bobbins, the work stations each being equipped with a bobbin winding device whose bobbin frame has the design according to the invention,
• 2 in side view a workplace of a textile machine producing cross-wound bobbins, according to section II - II of 1 ,
• 3 in front view a creel of a winding device of a work station designed according to the invention,
• 4 in section a bearing device of a second sleeve receiving plate, with a cylinder device designed according to the invention, in a first embodiment,
• 5 an alternative embodiment of the 4 illustrated storage device of the second sleeve receiving plate, also in section.

the 1 1 shows a schematic front view of a textile machine which produces cross-wound bobbins and which is identified overall by the reference number 1, in the exemplary embodiment an automatic cross-winding machine.

Such automatic cheese winders 1 usually have between their end frames 35, 36 a large number of similar work stations 2, in the present case winding stations. The spinning cops 9 produced on a ring spinning machine (not shown) upstream in the production process are rewound into large-volume cross-wound bobbins 11 on these winding stations 2 , as is known and therefore not explained in detail.

The finished cheeses 11 are then transferred to a cheese transport device 21 by means of an automatically operating service unit, for example by means of a cheese changer 23, and transported to a bobbin loading station or the like arranged at the end of the machine.

Such automatic cheese winders 1 usually also have a logistics facility, for example in the form of a spinning cop and tube transport system 3, in which, on transport plates 8, spinning cops 9 or empty tubes 34 circulate.

Furthermore, such automatic cheese winders 1 each have a central control unit 37 which is connected via a machine bus 40 both to the workstation computers 39 of the individual winding units 2 and to the control computer 38 of the service unit 23 serving the winding units 2 .

the 2 shows a side view of a job 2, of the 1 Only very schematically shown cheese machines 1. As above in connection with the 1 already explained, such automatic cheese winders 1 often have a logistics facility in the form of a spinning cop and tube transport system 3. From this spinning cop and tube transport system 3 are in 2 only the cop feed section 4, the storage section 5, which can be driven reversibly, one of the transverse transport sections 6 leading to the winding units 2, and the sleeve return section 7 are shown. The delivered spinning cops 9 are thereby rewound into large-volume cross-wound bobbins 11 in unwinding positions 10, which are each located in the region of the transverse transport path 6 at the winding stations 2.

As is also known and is therefore only indicated, the individual winding units 2 each have various devices which enable such winding units 2 to operate properly.

The thread running from the spinning cop 9 to the cross-wound bobbin 11 during the winding process is in 2 for example with the reference number 30, a suction nozzle with the reference number 12 and a gripper tube with the reference number 42. Such winding stations 2 usually also have a splicing device 13, a thread tensioner 14, a thread cleaner 15 with a thread cutting device, a waxing device 16, a thread tension sensor 20 and a lower thread sensor 22. Such winding stations 2 are also each equipped with a winding device 24, whose bobbin frame 18 designed according to the invention is movably mounted about a pivot axis 19 . The creel 18 can also, as in 3 shown, for example for the production of conical cross-wound bobbins, can be pivoted about an axis 25 .

As can be seen, during the winding process, the cross-wound bobbin 11 rests with its surface on a non-driven pressure roller 26 and takes it with it via frictional engagement. The cross-wound bobbin 11 is advantageously driven (see 3 ) via a variable-speed drive device 27, which is designed, for example, as an electronically commutable DC motor and is integrated, for example, in the bearing arm 17 of the creel 18.

In the area of the winding device 24 also a thread traversing device 28 is installed, as for example in the DE 198 58 548 A1 described in detail, essentially consists of a finger-like yarn guide 29 which, acted upon by an electromechanical drive 31, traverses the yarn 30 between the two end faces of the cross-wound bobbin 11.

As already indicated above, the drive device 27, for example in the DE 100 40 106 A1 is described relatively extensively, arranged in the bearing arm 17 of the creel 18 in a special bearing housing and the rotor is non-rotatably connected to a first tube receiving plate 32 . This drivable first tube receiving plate 32 fixes the bobbin tube 43 of a cross-wound bobbin 11 during the winding process in a frictionally engaged manner in cooperation with a rotatably mounted second tube receiving plate 33 arranged in the opposite bearing arm 41 of the creel 18 .

The drive device 27 is connected to a direct current source (not shown) via direct current lines 51, 52 and can be controlled in such a way that the cross-wound bobbin 11 not only rotates properly during the winding process, but can also be braked relatively strongly electrically if necessary.

The arranged in the region of the bearing arm 41 of the creel 18 second sleeve receiving plate 33 is also, as below with reference to 4 and 5 is explained in more detail, rotatably mounted in a double ball bearing device 44 and, if necessary, axially displaceable by means of a cylinder device 45 or acted upon by an additional clamping force K acting parallel to the axis of rotation 50 of the bobbin sleeve 43 . The cylinder device 45 is connected to a compressed air source 48 via a pneumatic line 46, in which a valve 47 is switched on. The valve 47, preferably an electromagnetic valve, is also connected by a control line 60 to the winding unit computer 39 of the work station 2 in question.

the 4 shows, in section and on a larger scale, a first advantageous embodiment of a cylinder device 45 arranged in a bearing housing 59 of the bearing arm 41 of the creel 18. By means of this cylinder device 45, the second tube receiving plate 33 can be attached to the bobbin tube 43 of the cross-wound bobbin with an increased clamping force K if necessary 11 attachable.

As can be seen, the second sleeve receiving plate 33 is rotatably mounted by means of a double ball bearing device 44, i.e. the outer ring 53 of a double ball bearing device 44 is fastened in a sliding bush 55, which in turn is slidably arranged in a bearing sleeve 54. The slide bushing 55 is acted upon by a spring element 49, preferably a helical spring, in the direction of the bobbin sleeve 43. The spring element 49 is mounted in a pressure-tight, so-called annular space 56 arranged between the sliding bush 55 and the bearing sleeve 54, which is also connected to a compressed air source 48 via a pneumatic line 46, into which a valve 47, for example an electromagnetic directional valve, is connected connected is. The valve 47 has a switching magnet 58 which is connected via a control line 60 to the workstation computer 39 of the relevant workstation 2 . This means that if necessary, the valve 47 can be shifted by the switching magnet 58 from a switching position 0, in which the annular space 56 of the pneumatic cylinder device 45 is depressurized, to a switching position 1, in which the annular space 56 is continuously pneumatically connected to the compressed air source 48 . The pressure then present in the annular space 56 then ensures that the second tube receiving plate 33 is applied to the bobbin tube 43 with an additional clamping force K.

the 5 shows a second alternative to the embodiment of FIG 4 slightly modified version. In this embodiment, the piston chamber 57 of the cylinder device 45 located behind the sliding bush 55 and the bearing sleeve 54 is connected to a compressed air source 48 via a pneumatic line 46 . Here, too, a valve 47 is switched on in the pneumatic line 46, the switching magnet 58 of which is connected via a control line 60 to the workstation computer 39 of the relevant workstation 2. This means that in this embodiment too, the valve 47 can, if necessary, be shifted from a switch position 0, in which the piston chamber 57 of the pneumatic cylinder device 45 is pressureless, to a switch position 1 by the switching magnet 58, in which the piston chamber 57 is pneumatically continuously connected to the Compressed air source 48 is connected. The pressure then present in the piston chamber 57 applies the second tube receiving plate 33 with an additional clamping force K to the bobbin tube 43 .

Facility function:

During the winding operation, the bobbin tube 43 of the cheese 11 is frictionally engaged in the tube receiving plates 32 and 33 of the creel 18 held. This means that a spring element 49 arranged in the bearing arm 41 of the creel 18 acts on the second tube receiving plate 33 in such a way that the bobbin tube 43 is clamped between the tube receiving plates 32 , 33 . The spring element 49, which is arranged in an annular space 56 formed between a stationary bearing sleeve 54 and a displaceably mounted sliding bush 55, acts on the sliding bush 55, which is fixedly connected to the outer ring 53 of a double ball bearing device 44, in the direction of the Bobbin sleeve 43. The second sleeve receiving plate 33 is firmly connected to the double ball bearing device 44, so that the second sleeve receiving plate 33 is pressed against the bobbin sleeve 43 with the spring force of the spring element 49, which is thus held frictionally between the sleeve receiving plates 32, 33.

The bobbin tube 43 of the cross-wound bobbin 11 supported with its surface on a pressure roller 26 is also rotated by the drive device 27 integrated into the bearing arm 17 of the creel 18 . This means that the first tube receiving plate 32 connected to the rotor of the drive device 27 takes the bobbin tube 43 of the cross-wound bobbin 11 with it in the winding direction by friction.

In the event of a winding interruption, in which the cheese 11 is quickly brought to a standstill by the drive device 27, there is a risk that the spring force of the spring element 49 will not be sufficient to hold the bobbin tube 43 of the cheese 11 in a rotationally fixed manner between the tube receiving plates 32, 33 to keep. In order to ensure that there is sufficient friction between the tube receiving plates 32, 33 and the bobbin tube 43 of the cross-wound bobbin 11 during the braking process, the pneumatic cylinder device 45 according to the invention is used when the cross-wound bobbin 11 is braked electrically.

In an advantageous embodiment, the cylinder device 45 has, for example, an annular space 56 that is arranged between the sliding bush 55 and the bearing sleeve 54 and can be pressurized pneumatically, which is connected to a compressed air source 48 via a pneumatic line 46 into which a valve 47 is switched. The valve 47 , which is preferably designed as an electromagnetic directional valve, has a switching magnet 58 which is connected to the workstation computer 39 of the workstation 2 via a control line 60 . In the event of a bobbin interruption, the work station computer 39 not only ensures that the drive device 27 is supplied with a braking current and the cross-wound bobbin 11 is effectively braked to a standstill by the resulting electrical braking torque, but also that the annular space 56 the cylinder device 45 is pressurized. The valve 47 is reversed, for example, from the switch position “0” to the switch position “I”, in which the annular space 56 is continuously connected pneumatically to the compressed air source 48 . The inflowing compressed air then presses the slide bushing 55 and thus the second tube receiving plate 33 with increased clamping force K against the bobbin tube 43 and thereby increases the effective frictional torque between the tube receiving plates 32, 33 and the bobbin tube 43 considerably.

In the case of large cross-wound bobbins 11 in particular, which have a relatively high kinetic energy, this ensures that while the cross-wound bobbin 11 is being braked, there is always sufficient frictional engagement between the tube receiving plates 32, 33 and the bobbin tube 43, thus ensuring that the bobbin tube 43 does not move during of the braking process cannot rotate in the sleeve receiving plates 32, 33.

As soon as the cross-wound bobbin 11 is braked to a standstill, the cylinder device 45 is depressurized. The bobbin sleeve 43 is then again frictionally fixed exclusively by the force of the spring element 49 and can, if desired, be removed from the bobbin frame 18 without any problems.

Reference List

1

Textile machine producing cheeses

2

place of work

3

Spinning cop and tube transport system

4

bobbin feed line

5

storage route

6

cross transport section

7

sleeve return line

8th

transport plate

9

spinning cop

10

unwind position

11

cone

12

suction nozzle

13

splicing device

14

thread tensioner

15

thread cleaner

16

paraffining device

17

bearing arm

18

bobbin frame

19

pivot axis

20

thread tension sensor

21

Cheese transport device

22

bobbin thread sensor

23

cheese changer

24

spooling device

25

axis

26

pressure roller

27

drive device

28

thread traversing device

29

thread guide

30

thread

31

drive

32

case pick-up plate

33

case pick-up plate

34

empty shell

35

end frame

36

end frame

37

central control unit

38

tax calculator

39

job calculator

40

machine bus

41

bearing arm

42

gripper tube

43

bobbin case

44

Double ball bearing facility

45

cylinder device

46

pneumatic line

47

Valve

48

compressed air source

49

spring element

50

axis of rotation

51

direct current line

52

direct current line

53

outer ring

54

bearing sleeve

55

sliding bush

56

annulus

57

piston space

58

shift magnet

59

bearing housing

60

control line

K

resilience

0

switching position

I

switching position

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 19650932 A1 [0005]
• DE 102013008112 A1 [0007]
• DE 19836701 A1 [0008]
• DE 19908093 A1 [0012, 0014]
• DE 10040106 A1 [0015, 0042]
• DE 19858548 A1 [0041]

Claims (10)

Bobbin frame (18) for a bobbin winding device (24) of a textile machine (1) producing cross-wound bobbins, with a speed-controllable drive device (27) integrated in a bearing arm (17) of the bobbin frame (18), to which a first tube receiving plate (32) is connected in a rotationally fixed manner and a second tube receiving plate (33) which is rotatably mounted in the opposite bearing arm (41) of the creel (18) and which is acted upon by a spring element (49), the spring force of which is directed parallel to the axis of rotation (50) of the drive device (27) in such a way that the bobbin tube (43) of a cross-wound bobbin (11) clamped between the two tube receiving plates (32, 33) is held by friction, characterized in that the bearing arm (41) in which the second tube receiving plate (33) is rotatably mounted is equipped with a pneumatic cylinder device (45 ) which enables the clamping force (K) with which the bobbin sleeve (43) of the cross-wound bobbin (11) to be accommodated between the sleeves ellern (32, 33) is held to vary as needed. Bobbin frame (18) after claim 1 , characterized in that the pneumatic cylinder device (45) is designed in such a way that the second tube receiving plate (33) can be placed against the bobbin tube (43) of the cross-wound bobbin (11) with an increased clamping force (K) if necessary. Bobbin frame (18) after claim 1 or 2 , characterized in that the second sleeve receiving plate (33) is rotatably mounted by means of a double ball bearing device (44), the outer ring (53) of the double ball bearing device (44) being fixed in a sliding bush (55) which can be displaced axially in a bearing sleeve (54) and is acted upon by a spring element (49) in the direction of the sleeve receiving plate (33) and that the bearing sleeve (54) and the sliding bush (55) are designed in such a way that between them a pressure-tight annular space (56) that can be pressurized in a defined manner given is. Bobbin frame (18) after claim 3 , characterized in that the annular space (56) is connected to a compressed air source (48) via a pneumatic line (46) into which a valve (47) is switched on. Bobbin frame (18) after claim 4 , characterized in that the valve (47) is connected to a workstation computer (39) via a control line (60) and can be controlled in such a way that the annular space (56) is pressurized during the braking process of the drive device (27). Bobbin frame (18) according to one of the preceding claims, characterized in that the bearing sleeve (54) and the sliding bush (55) are designed in such a way that there is a pressure-tight piston space (57) between them that can be pressurized in a defined manner. Bobbin frame (18) after claim 6 , characterized in that the piston chamber (57) is connected to a compressed air source (48) via a pneumatic line (46) into which a valve (47) is switched. Bobbin frame (18) after claim 7 , characterized in that the valve (47) is connected to a workstation computer (39) via a control line (60) and can be controlled so that the piston chamber (57) is pressurized during the braking process of the drive device (27). Bobbin frame (18) according to one of the preceding claims, characterized in that the spring element (49) is designed as a helical spring. Bobbin frame (18) according to one of the preceding claims, characterized in that the valve (47) is designed as an electromagnetic valve which has a switching magnet (58) which can be controlled by an associated workstation computer (39).

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