EP0825143A2 - Winding machine for winding a running yarn - Google Patents

Abstract

The yarn bobbin winder has a movement applied to the bobbin spindle (14), as the winding bobbin dia. increases, through the carrier (13) at the fixed turret (11) in the first stage, together with rotation of the turret (11) with a fixed carrier (13) in a number of steps. Also claimed is a bobbin winding operation where the bobbin spindle is shifted in a number of steps. In each step, there is a different movement direction between the bobbin spindle and the pressure roller bearing against the wound yarn. Each movement direction relates to a given guide path.

Description

The invention relates to a winding machine for winding a running Thread to a bobbin according to the preamble of claim 1.

In the known winding machines of the prior art Winding up a bobbin the increase in the bobbin diameter by a Dodge movement of the spool or the pressure roller allows. Here is the contact pressure between the coil and the pressure roller hydraulic or pneumatic force transducers specified and essentially kept at a constant value during winding.

In the winding device known from US 4,298,171, the winding spindle by means of the rotating movement of a revolver during winding moved away from the stationary pressure roller. The winding spindle is on a swing arm mounted relative to the turret by means of a force transducer is pivotable. In the winding area, the winding spindle is closed with the forming coil pressed against the fixed pressure roller. The rotary motion the turret to form the coil is controlled so that the relative position of the rocker on the turret remains unchanged. The investment power between the pressure roller and the spool is from the power transmitter given. The winding area is the size of the turret diameter dependent.

In the winding machine known from DE 25 23 771, the spool is used receiving winding spindle by means of a linear guide during winding moved straight away from a pressure roller. The direction of action remains the contact force of the pressure roller relative to the coil surface constant. The pressing force is determined by means of a pneumatic cylinder.

In the known winding machines, the contact force between the Coil and the pressure roller applied by the same control device, which is also the evasive movement between the pressure roller and the winding spindle controls. This creates unwanted effects due to stick-slip effects Changes in investment capacity.

When winding a bobbin, it is desirable that the pressing force does not remain constant during the winding cycle. This is how the Winding often requires a low pressure to the first layers not to press into each other. As the winding continues, a higher pressing force required, e.g. to increase the packing density. For However, avoiding bulges of the coil is also necessary to obtain areas with low pressure during winding.

It is therefore an object of the invention, a winding machine of the beginning mentioned type in such a way that a thread in stages with each different but constant contact forces between the coil and the Pressure roller is wound up into a bobbin. Furthermore, one of the goals is Invention to provide a device in the coils as thick as possible can be wrapped in a compact design.

The solution to the problem results from the features of claim 1.

From DE 43 21 111 a winding machine is known in which the Spooling spindle by means of a swing arm mounted on the turret is movable. The rocker is attached to the turret in such a way that the winding spindle only against the direction of rotation of the turret Pressure roller can be moved away. This arrangement leaves throughout Winding travel thus only one evasive movement by means of the winding turret.

In the winding machine according to the invention for winding a starting Fadens the evasive movement when winding up by the movement of the carrier on the fixed turret and by rotating the Revolving turret with fixed carrier carried out in several stages. As a result, the evasive movement between the pressure roller and the Coil staggered in stages with different directions of movement. Each of the directions of movement is characterized by a typical guideway, on which the winding spindle is moved. The particular advantage here lies in the fact that the changes in the weight component are very targeted the pressure roller due to the change in relative position between the coil and Pressure roller is used to influence the system force. In addition can make thick bobbins while maintaining small dimensions of the bobbin turret be wrapped.

The contact force between the spool and the pressure roller is at one movable pressure roller essentially by the weight of Pressure roller determined. The invention is now based on the knowledge that the contact force that results from the weight of the pressure roller or at fixed pressure roller is determined by the direction of action the position of the pressure roller to the spool can be changed. Thus, the Tracking force in a very simple way due to the evasive movement of the coil or the pressure roller during winding. Especially When building a coil, it is advantageous if the contact force can be changed.

Another advantage of the invention lies in the possibility of combination and in the variation of the number and sequence of the stages for changing the Center distance. This allows very individual reel assemblies to be used wild winding as well as with a precision winding.

The development of the winding machine according to claim 2 is special advantageous to essentially in the first phase of winding with a constant investment power. This will be the first thread layers not damaged if the investment power is too high or if the investment power is too low wrapped too loosely. In this phase of winding, the Spool spindle relative to the pressure roller preferably with a carrier on the stationary Revolver moves. Here, the winding spindle on a move straight or slightly curved guideway so that the position changed only slightly between the pressure roller and the spool becomes. In the further course of winding, e.g. to increase the Packing density is an advantage of an increase in asset strength, which is indicated by a Evasion movement of the coil is effected by means of the turret rotation. The movement on the turret reveals a constant change in Position created between the pressure roller and the spool. With that the Weight component of the investment power influenced.

The design of the winding machine according to claim 3 is particularly for a winding is suitable, in which the spool initially increases with increasing Investment power and in the further course of the winding cycle with as constant as possible Investment force is wrapped.

By combining the movement of the carrier and the rotational movement of the Winding turret acc. Claim 4, it is possible at extremely high winding speeds to catch the rapidly increasing diameter of the coil, without the investment force making an inadmissible deviation from the specified one Receives setpoint.

The winding machine according to claim 5, wherein the bobbin in one outer position relative to the turret is special advantageous to wind very thick coils. By dividing the Evasion in stages can be relatively compact even with some and small components according to claim 6, the greatest possible escape route to form the coil.

The development of the invention according to claim 8 is particularly of Advantage to threads with a low titer or threads with a low Winding thread speeds.

When winding threads with relatively large titers, such as for carpet yarn, the winding machine according to claim 9 is preferred executed. It is particularly advantageous if the drive of the Carrier and / or the turret by means of frequency-controlled electric motors he follows.

The configuration of the winding machine according to the invention as claimed in claim 10 is particularly useful when catching the thread on an empty tube at the beginning of the Reel travel is an advantage. This creates opportunities to use the winding spindle the empty sleeve from the outer position or from the inner position in the Swing in the thread run. This allows the thread to run in unison, i.e. Empty tube and thread have the same direction of movement, or in the opposite direction, i.e. the thread and the empty tube have opposite directions of movement, to be caught.

The development of the winding machine according to claim 11 has the Advantage that in the stage in which the carrier the evasive movement of the Performs winding spindle, the contact force between the bobbin and the pressure roller remains essentially constant.

The design of the winding machine according to claim 12 shows an advantageous Drive device for the carrier of the winding spindle. Here is the Size of the evasive movement of the winding spindle, which is driven by the Schweinge is designed, regardless of the dimensions of the winding turret. This version is therefore particularly suitable for compact design To wind coils with a relatively large diameter.

The winding machine according to the invention is characterized through a particularly flexible drive combination of the carrier and the Turret off. The drive of the spindle turret and the drive of the Turret turrets are advantageously controlled so that an overlay the rotary movement is possible. This allows the geometric relationships when winding between the pressure roller and the winding spindle and thus also changing the investment power in different ways. The drives can be formed by converter-controlled individual motors. Both Drives can be advantageously controlled by a programmable controller couple. This allows any combination of the rotary movements of the Spindle turret and the winding turret of the winding machine abandoned will. A predetermined profile of the contact pressure can thus be applied in the winding area passed between the pressure roller and the spool.

In order to achieve the narrowest possible machine division, the embodiment is the winding machine according to claim 14 is particularly suitable.

The winding machine according to the invention is particularly for the variants suitable where the pressure roller is fixed in relation to the spool. Here could control the drive motors of the turret and the carrier by means of a sensor that measures the contact force between the coil surface and the pressure roller is detected.

The control of the winding turret, which has become known from EP 03 74 536 but can also be used without difficulty on the drive of the carrier expand. Here, the movement of the pressure roller on a Swing arm is mounted, recorded and used to control the drives.

However, the mobility of the pressure roller can also be advantageous Increased parking time can be used. For this, at the beginning of the Winding travel of both the winding turret and the carrier in the winding area not powered. Thus, the pressure roller from the growing diameter of the coil pushed out of its position. After this the stroke limit of the pressure roller is reached, the carrier or the Winding turret activated so that the pressure roller is in its original position resumes.

Further advantageous developments of the invention are in the subclaims Are defined.

Further advantages and refinements of the invention are based on the in the exemplary embodiments illustrated in the drawing are explained.

Fig. 1

schematisch eine Seitenansicht einer Aufspulmaschine mit am Spulrevolver in einer Schwinge gelagerten Spulspindel;

Fig. 2

schematisch die Aufspulmaschine aus Fig. 1 am Ende der ersten Stufe der Aufspulung;

Fig. 3

schematisch die Aufspulmaschine aus Fig. 1 in der zweiten Stufe der Aufspulung;

Fig. 4

Anlagekraft zwischen Andrückwalze und Spule;

Fig. 5

schematisch eine Seitenansicht einer Aufspulmaschine mit am Spulrevolver in einer Linearführung gelagerten Spulspindel;

Fig. 6

schematisch eine Seitenansicht einer Aufspulmaschine mit am Spulrevolver in einem Spindelrevolver gelagerten Spulspindel;

Fig. 7

schematisch einn Längsschnitt der Aufspulmaschine aus Fig. 6.

Show it:

Fig. 1

schematically shows a side view of a winding machine with winding spindle mounted on the winding turret in a rocker;

Fig. 2

schematically the winding machine of Figure 1 at the end of the first stage of winding.

Fig. 3

schematically the winding machine of Figure 1 in the second stage of winding.

Fig. 4

Contact force between pressure roller and spool;

Fig. 5

schematically shows a side view of a winding machine with winding spindle mounted on the winding turret in a linear guide;

Fig. 6

schematically shows a side view of a winding machine with the winding spindle mounted on the winding turret in a spindle turret;

Fig. 7

schematically shows a longitudinal section of the winding machine from FIG. 6.

In Fig. 1 is a schematic side view of a winding machine according to the invention shown.

Here, a thread 1 runs over a head thread guide 2 to a traversing device. The traversing device consists of a traversing drive 6 and the wings 3. The wings 3 alternately guide the thread 1 along a ruler 4 back and forth within the limits of a traversing stroke. Of the Thread 1 then runs on a pressure roller 5. The pressure roller 5 is partially wrapped around the thread 1 and then onto a spool 17 filed. The coil 17 is formed on a bobbin tube 16, which on a rotatable winding spindle 14 is inserted. During winding, the pressure roller 5 movable radially to the coil with a contact force on Scope of the coil 17. The winding spindle 14 is in turn cantilevered a rocker 13 mounted. The rocker 13 is with one Swivel bearing 15 attached to a rotatable turret 11. The revolver 11 is rotatably arranged in a machine frame with a bearing 20. The rocker 13 is relative to the turret by means of a linear drive 28 pivotable from an outer position to an inner position or vice versa. The linear drive 28 is also with the attachment 29 on the turret 11 attached. In the position shown in FIG. 1, the rocker 13 pivoted with the mounted winding spindle 14 such that the winding spindle located outside of the turret 11. For this purpose, the Spindle turret 11 a recess 22 is arranged. For winding the thread 1, the winding spindle 14 is driven. The drive could be both by a driven pressure roller 5 as well as by a direct one Spindle drive. The pressure roller 5 is provided with a sensor 19 equipped with a control device 10 through the sensor line 31 connected is. The linear drive 28 can be controlled by means of the control device 10 via control line 33 or the winding turret drive (41) via the control line 32 can be controlled.

According to the invention, the winding-up process is divided into several stages, the evasive movement of the bobbin being carried out with different means in each stage. After the thread 1 is caught on a sleeve 16, the pressure roller 5 is brought into circumferential contact with the bobbin 17, a predetermined contact force, for example supported by a force generator on the pressure roller, acting on the bobbin surface. In the position shown in Fig. 1, the winding begins in the first stage. The position of the pressure roller essentially does not change. The evasive movement for forming the coil 17 is carried out by means of the rocker 13, the winding spindle 14 being guided on a part-circular guideway to an inner relative position on the winding turret 11. The winding turret drive is not activated in this phase of winding. The deflection movement of the rocker is predetermined by means of the control device 10 by the linear drive 28. Here, the
Swing arm can be moved continuously or step by step. So that the peripheral contact between the pressure roller 5 and the spool 17 is not interrupted during winding, a predetermined minimum contact force or a change in position on the pressure roller is measured by means of the sensor 19 and signaled to the control device 10. The control device 10 is programmed in such a way that, depending on the winding situation, either the linear drive 28 or the winding turret drive (41) is activated.

2 and 3, the winding machine from FIG. 1 is different Levels of winding shown. With regard to the construction, the Description to Fig. 1 referenced. In Fig. 2 the coil 17 is like this widely grown that the rocker 13 on the inner relative position Has reached turret turret 11. That would be the first stage of winding completed. The relative position between the pressure roller 5 and the spool 17 has changed only slightly. So in this phase the Component of the system force, which results from the weight of the pressure roller resulted, remained essentially constant. 3 is the other Sequence of the winding process shown. The evasive movement of the coil 17th is carried out in the second stage by rotating the turret. In this phase of the winding process is due to the change in position between the pressure roller 5 and the coil 17 a constant change in Investment power causes.

However, the control device 10 can also be programmed such that several times a change between the first stage and the second stage is carried out.

The contact force acting between the pressure roller and the spool results from the weight of the pressure roller. 4 shows the force ratio between the pressure roller 5 and the spool 17. The weight of the pressure roller is designated G, which has a vertical direction of action. The contact force P _A , which acts between the pressure roller 5 and the spool 17, has the connecting line between the axis center point M _{A of} the pressure roller and the axis center point M _{S of} the winding spindle as the direction of action.
In order to enable the coil diameter of the coil 17 to increase, it is now possible to move the coil spindle with the carrier designed as a rocker. Here, the axis center M _{S of} the winding spindle will move on a circular guideway F _T , the center of which is formed by the axis center M _{T of} the pivot axis of the carrier or the rocker. In this case, the coil 17 will move in the direction of movement R _T.

However, there is also the possibility of moving the winding spindle with the winding turret in order to enable the winding diameter to increase. In this case, the axis center M _{S of} the winding spindle would move on a circular guideway F _R , which has the axis center M _{R of} the winding turret as the center. The coil 17 would move in the direction of movement R _R.

The deviation between the direction of action of the contact force P _A and the direction of movement R of the coil is characterized by an angle α. The following applies here, the smaller the angle α, the smaller the change in the contact force PA occurring during the winding travel. It can be seen from FIG. 4 that an angle α1 is spanned between the effective direction of the contact force P _A and the direction of movement R _T caused by the carrier. In contrast, the angle α2 is spanned between the effective direction of the contact force PA and the direction of movement R _R generated by the coil turret. The angle α2 is much larger than the angle α1. This will result in a relatively strong increase in contact force P _A when the turret rotates during the winding cycle. This increase could, for example, have an effect on increasing the packing density when the coil 17 is formed. In contrast, the movement of the winding spindle through the carrier or the rocker means that the contact force P _A set at the beginning of the winding travel changes only insignificantly. The winding machine according to the invention thus offers the possibility of setting a contact force which is desirable for the formation of the bobbin simply by changing the direction of movement of the winding spindle. The weight G of the pressure roller could be increased or relieved by a force sensor as required by a constant value.

In the embodiment shown in FIG. 5, the winding spindle is in a bearing block 37 stored. The bearing block 37 is in a linear guide 38 guided on the winding turret. By means of the linear drive 28, the Winding spindle from an outer position to an inner position and vice versa be moved. This version has the particular advantage that the carrier movement does not change the position between the pressure roller 5 and the coil 17 is given. Regarding the construction and the Control is made to the description of FIGS. 1 to 3.

In Fig. 6, the view of a winding machine is shown schematically, at which the spindle 14 is mounted on a spindle turret 12. The winding machine has a revolving turret 11, which by means of the bearing 20 in a machine frame 9 is rotatably mounted. The winding turret 11 is there driven by an electric motor (41). In the turret 11 is the spindle turret 12 is rotatably mounted eccentrically with the bearing 21. Of the Spindle turret 12 is driven by an electric motor (41). On the spindle turret 12, the winding spindle 14 is supported cantilevered. The winding spindle 14 is located in the winding area. In the shown Position runs the thread 1 over the head thread guide 2 to the traversing device. The traversing device is as wing traversing with the wings 3 trained. The wings 3 alternately guide the thread 1 along the guideline 4 back and forth within the limits of the traversing stroke. The string runs on the pressure roller 5. The pressure roller 5 is from The thread is partially looped and placed directly on the bobbin 17. The Coil 17 is formed on the winding tube 16 and rotates with the winding spindle 14. The pressure roller 5 is mounted on a rocker 8. The Swing arm 8 is connected in the swivel joint 25 to the machine frame 9. Below the rocker 8, a sensor 19 is arranged, which with its control device 10 is connected. The control device 10 is each with the drive motors of the spindle turret and the drive motor of the turret connected.

In the winding machine shown in FIG. 6, as the bobbin grows 17 the pressure roller 5 lifted from its target position, which directly from the Sensor 19 detected by changing the position and converted into a signal becomes. This signal is fed to the control device 10. The control device is programmed in such a way that it first drives the Spindle turret 12 activated. The spindle turret 12 turns 24 move the winding spindle 14 relative to the fixed winding turret, so that the center distance between the pressure roller 5 and the winding spindle 14 enlarged. In this situation the drive of the winding turret is not activated. In this embodiment, in the second stage Winding of the turret 11 rotated when the turret 12 is stationary.

In Fig. 7 is a schematic sectional view of the winding machine Fig. 6 shown. The winding spindle 14 is located in the winding area. The winding spindle 14 is in the spindle turret by means of the bearing 30 12 stored. The winding spindle 14 is driven by means of the spindle drive 27. So that the peripheral speed on the coil surface during the coil travel can be kept constant, the speed of the pressure roller 5 detected by the sensor 35 and the control device 10 fed. The control device 10 converts the signals into control pulses, which are fed to the spindle drive 27 and thus the drive of the Spool spindle 14 controls. The motor 42 of the spindle turret 12 is preferred arranged in the turret. The spindle turret is preferred driven by a chain drive. The motor 41 of the turret 11 is arranged on the machine frame 9.

In order to be able to wind a continuously running thread Winding machines, each with two winding spindles mounted on the winding turret required. As shown in FIGS. 6 and 7, such an arrangement is Executable in the storage facility 40 provided there.

REFERENCE SIGN LIST

1

thread

2nd

Head thread guide

3rd

wing

4th

Guideline

5

Pressure roller

6

Traverse drive

7

carrier

8th

Swingarm

9

Machine frame

10th

Control device

11

Winding turret

12th

Spindle turret

13

Swingarm

14

Winding spindle

15

Swivel bearing

16

Bobbin

17th

Kitchen sink

18th

Bobbin

19th

sensor

20th

camp

21

camp

22

Recess

23

Sense of rotation

24th

Sense of rotation

25th

Swivel

26

axis

27

Winding spindle drive

28

linear actuator

29

Attachment

30th

Spindle bearing

31

Sensor performance

32

Control line

33

Control line

34

Control device

35

sensor

36

Valve

37

Bearing block

38

Linear guide

39

Direction of movement

40

Storage facility

41

Winding turret drive

42

engine

Claims (16)

Winding machine for winding a thread running (1) into a bobbin (17), with a pressure roller (5) applied to the surface of the bobbin with a contact force, with a bobbin spindle (14) which receives and drives the bobbin and which is cantilevered on a rotatable Winding turret (11) is arranged, and with a carrier (13) movably attached to the winding turret (11), in which the winding spindle (14) is rotatably mounted and through which the winding spindle (14) can be moved in the radial direction relative to the winding turret (11),
wherein the movement of the carrier (13) and the rotation of the winding turret (11) can be controlled independently of each other by a drive and the center distance between the winding spindle (14) and the pressure roller (5) for forming the spool (17) can be changed continuously or step by step by means of an evasive movement of the winding spindle (14),
characterized in that the evasive movement of the winding spindle (14) can be carried out in several stages by the movement of the carrier (13) on the stationary winding turret (11) and by the rotation of the winding turret (11) when the carrier (13) is stationary. Winding machine according to claim 1,
characterized in that in a first stage the winding spindle (14) can be moved by means of the carrier (12; 13; 37) on the stationary winding turret (11) and in a second stage the winding spindle (14) by means of the rotary movement of the winding turret (11) when the carrier is stationary ( 12; 13; 37) is movable. Winding machine according to claim 1,
characterized in that in a first stage the winding spindle (14) can be moved by means of the rotary movement of the winding turret (11) when the carrier (12; 13; 37) is stationary and in a second stage the winding spindle (14) can be moved by means of the carrier (12; 13; 37) on the fixed turret (11) is movable. Winding machine according to one of claims 1 to 3,
characterized in that at least in one of the stages the winding spindle (14) can be moved by the movement of the carrier (12; 13; 37) and the rotation of the winding turret (11). Winding machine according to one of the preceding claims,
characterized in that the carrier (12; 13; 37) is formed on the winding turret (11) such that the winding spindle (14) can be moved in the direction from an outer to an inner relative position on the winding turret (11) during winding. Winding machine according to claim 5,
characterized in that the outer relative position outside the winding turret (11) and the inner relative position inside the winding turret (11). Winding machine according to claim 5,
characterized in that the outer relative position and the inner relative position lie within the turret (11). Winding machine according to one of claims 1 to 7,
characterized in that the carrier (12; 13; 37) or the winding turret (11) can be driven step by step. Winding machine according to one of claims 1 to 7,
characterized in that the carrier (12; 13; 37) or the winding turret (11) can be driven continuously. Winding machine according to one of claims 1 to 9,
characterized in that the winding spindle (14) can be moved back and forth on a guideway by means of the carrier (12; 13; 37). Winding machine according to one of claims 1 to 10,
characterized in that the carrier is designed as a bearing block (37) receiving the winding spindle (14), the bearing block (37) being mounted in a linear guide (38) on the winding turret (11) and by means of a linear drive (28) on a straight bearing guide path relative to the winding turret (11) is movable. Winding machine according to one of claims 1 to 10,
characterized in that the carrier is designed as a pivotable rocker (13) in which the winding spindle (14) is mounted and that the rocker (13) is rotatably mounted on a pivot axis (15) on the turret (11) and can be pivoted about the pivot axis (15) by means of a linear drive (28). Winding machine according to one of claims 1 to 10,
characterized in that the carrier is designed as a rotatable spindle turret (12), on which the winding spindle (14) is mounted eccentrically, and that the spindle turret (12) is rotatably mounted eccentrically on the spindle turret (11). Winding machine according to one of claims 1 to 13,
characterized in that the winding spindle (14) remains at the end of the winding travel at the transition from the winding area into a changing area and back in its inner relative position on the winding turret (11). Winding machine according to one of claims 1 to 14,
characterized in that the winding turret (11) has a bearing device (40) for receiving a second winding spindle with a carrier. Method for winding a thread running into a bobbin, which is formed on a driven winding spindle attached to a rotating revolving turret and which is subjected to a contact force on the circumference by a pressure roller, the axial distance between the bobbin and the pressure roller becoming apparent during the winding an evasive movement increases steadily or gradually,
characterized. that the evasive movement is carried out in several stages with the direction of movement changed in each stage between the winding spindle and the pressure roller, with a specific guideway of the winding spindle being associated with each direction of movement.

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