EP2336406A1 - Carding wire mounting device for metal wire - Google Patents

Abstract

The device (1) has a frame (5) on which a mounting arm (4) is supported. A force measuring arrangement measures force acting on the mounting arm during a fitting operation. The mounting arm supports a brake arrangement that is arranged to decelerate an all-steel card clothing (2) moving through the device. The mounting arm supports an alignment arrangement that straightens the all-steel card clothing passing through the device. The force measuring arrangement is arranged between a guide arrangement (11) and the mounting arm.

Description

The invention relates to a mounting device for mounting profile wire on rollers.

In textile technology, a carding machine or a carding machine (short: carding or carding) is used to separate fibers of a fiber material, such as wool, cotton or the like, to sort, for example, to homogenize and / or to parallelize. The product of a carding process is a batt. This consists of a loose composite of ordered individual fibers, which can be formed into a nonwoven. The batt is formed by the fibers are removed and summarized by a designated as Tambour large carding roller by means of acceptance means.

The carding machine usually contains several different rollers, each of which is outfitted with pointed spines or teeth facing outwards. Depending on the application, the number of tips per unit area is different. Likewise, the shape and orientation of the tips vary.

At least one of the mentioned rollers, for example the spool, is provided with an all-steel clothing. This consists of a profile wire whose cross section may have, for example, a rectangular section and a leaf section. The blade section is arranged on the radially outer side and provided, for example, with a sawtooth profile. The overall arranged on a helix profile wire is preferably under Longitudinal tension. Its ends are connected to the roller, for example, soldered, welded or otherwise secured.

Due to wear, it may be necessary to change the steel trim. After removing the old set then new profile wire is mounted on the roller. For mounting the profile wire of the all-steel set are used Aufziehvorrichtungen which are adapted to control in particular the tension under which the profile wire is wound.

For example, the CH 255376 a mounting device with a frame in which the roller to be associated with the all-steel clothing is arranged horizontally and rotatably supported. A drive motor rotates the roller in a controlled manner. The profile wire used to make the all-steel garnish is kept ready on a supply spool. From this he runs over the mounting device on the roller. The mounting device comprises a mounted on a frame guide arm which brakes the profile wire with a braking device. In addition, a Andrückfuß is arranged on the arm, which presses the windings lying on the roller gapless together.

About the braking device acting on the profile wire longitudinal tension can be determined and determined. However, this does not accurately detect the wire tension prevailing in the turns of the profile wire resting on the roll. The brake force display only shows the braking force. Other forces acting on the profile wire forces, for example, at deflection points or on Andrückfuß, are not taken into account.

The EP 1 554 418 B1 suggests putting on a carded garnish a device 5, which has a parallel to the carded garnish brake unit 20. The brake unit 20 is disposed on a carriage structure 28. Between a stop device 33 and the slide structure 28, the supporting force occurring there is measured by means of a force measuring device 34 and taken as a direct measure of the biasing force of the all-steel set.

Again, external influences that can change the biasing force before and / or after the braking device, not detected.

On this basis, it is an object of the invention to provide a Aufziehvorrichtung with improved measurement of the effective force when mounting the profile wire force.

• Die erfindungsgemäße Aufziehvorrichtung weist ein Gestell auf, an dem ein Aufzieharm beweglich gelagert ist. Dieser Aufzieharm dient unter anderem dazu, den Profildraht zur Herstellung der Ganzstahlgarnitur kontrolliert auf die Walze zu führen. Erfindungsgemäß ist zur Bestimmung der in dem Profildraht beim Auflegen auf die Walze vorhandenen Kraft eine Kraftmesseinrichtung vorgesehen, die zur Messung der auf den Aufzieharm einwirkenden Kraft eingerichtet ist. Die Kraftmesseinrichtung misst die Kraft, mit der sich der Aufzieharm, gegebenenfalls über eine Führungseinrichtung, an dem Gestell abstützt. Dabei wird unter "Kraft" zumindest in einer bevorzugten Ausführungsform diejenige Kraftkomponente verstanden, die parallel zu dem auf die Walze laufenden Profildraht gerichtet ist. Alternativ ist es auch möglich anstelle dieser einzigen Kraftkomponente alle Kraftkomponenten, d.h. Betrag und Richtung der insgesamt wirkenden Kraft zu erfassen und zumindest bedarfsweise aus dem sich ergebenden Kraftvektor die gewünschten Komponenten zu errechnen. Dazu oder auch lediglich zum Anzeigen der gemessenen Kraftkomponenten kann eine entsprechende Auswerteeinrichtung, Anzeigeeinrichtung oder dergleichen vorgesehen sein.

This object is achieved with the mounting device according to claim 1:

• The mounting device according to the invention has a frame on which a Aufzieharm is movably mounted. This Aufzieharm serves, among other things, to guide the profile wire for producing the all-steel set controlled on the roller. According to the invention, a force measuring device is provided for determining the force present in the profile wire when placed on the roller, which is arranged to measure the force acting on the mounting arm. The force measuring device measures the force with which the mounting arm, possibly via a guide device, is supported on the frame. In this case, "force" is understood, at least in a preferred embodiment, as the force component which is directed parallel to the profile wire running on the roller. Alternatively, it is also possible instead of this single force component all force components, that is, to detect the magnitude and direction of the total force acting and, if necessary, to calculate the desired components from the resulting force vector. For this purpose or else only for displaying the measured force components, a corresponding evaluation device, display device or the like can be provided.

The Aufzieharm preferably carries a plurality of components that guide or influence the profile wire. For example, the Aufzieharm wear a braking device. This braking device may comprise brake rollers or brake shoes, which act on the continuous profile wire with a defined longitudinal force.

Upstream of the braking device, the Aufzieharm may comprise guide rollers, for example, serve to rotate the profile wire from the position in which it runs from the supply reel, in a wind-up position, in which it is wound on the roller. In this case, the profile wire, for example, undergoes a rotation of 90 ° about its longitudinal axis.

Next can be arranged on the Aufzieharm a straightening device. This can be provided in particular for straightening the running through the mounting device, serving to produce the all-steel clothing profiled wire. The straightening device can be formed by a plurality of rollers arranged in a zigzag, between which the profile wire passes.

Further, the Aufzieharm can carry a tilting device. The tilting device can serve, for example, to change the orientation of the profile wire. The tilting device controls the direction in which the profile wire is aligned is, for example, by guide means acting on the side surfaces of the profile wire. In order to influence the orientation targeted, the guide means can exert a braking effect on the profile wire.

It is also possible to arrange further means, such as deflection rollers and / or rotatably mounted guide means, with which the arrangement of the profile wire on the roller, on the Aufzieharm.

There are several ways of detecting the entire force acting on the pulling-up force, or at least the size of the force acting in the profile wire longitudinal direction force components acting on the Aufzieharm. A first possibility is the arrangement of the force measuring device operatively between the Aufzieharm and the guide means with which the Aufzieharm is mounted on the frame. For this purpose, the Aufzieharm be movably connected to the guide device in profile wire longitudinal direction. The force measuring device is then effective in the profile wire longitudinal direction and detects slight longitudinal displacements of the Aufzieharms with respect to the guide device.

It is also possible to detect the force acting in the guide device itself. In this case, preferably only the transverse to the guide rail between the guide carriage and the guide rail effective force component is detected. For example, if the guide carriage is mounted on the guide rail via rollers, the forces occurring at the bearing of the rollers can be detected by corresponding force sensors in order to determine the desired force.

Further, it is possible to measure the force occurring between the guide rail and the frame. For example Both ends of the guide rail can be connected to the frame via force sensors. The sum of the partial forces emitted by the two force sensors then corresponds to the force acting on the mounting arm.

It is considered advantageous if the guide means, over which the Aufzieharm is movable parallel to the roller, a pivoting of the Aufzieharms around the longitudinal axis of the guide rail permits. Thus, the Aufzieharm can align freely according to the direction of the running on the roller profile wire.

Further details of advantageous embodiments of the invention are the subject of the description, the drawings or claims. The description is limited to essential aspects of the invention and other conditions. The drawing and the knowledge of the expert supplement the description.

• Figur 1 eine Aufziehvorrichtung beim Aufziehen eines Profildraht auf eine Kardierwalze, in schematisierter Darstellung,
• Figur 2 den Aufzieharm und seine Führungseinrichtung, in schematisierter Seitenansicht,
• Figur 3 den Aufzieharm und seine Führungseinrichtung, in perspektivischer etwas detaillierterer Darstellung,
• Figur 4 den Aufzieharm nach Figur 3, in perspektivischer Darstellung, aus einer anderen Richtung gesehen,
• Figur 5 eine abgewandelte Ausführungsform der erfindungsgemäßen Aufziehvorrichtung, in perspektivischer Darstellung.

In the drawings, embodiments of the invention are illustrated. Show it:

• FIG. 1 a mounting device when mounting a profile wire on a carding roller, in a schematic representation,
• FIG. 2 the Aufzieharm and its guide device, in a schematic side view,
• FIG. 3 the Aufzieharm and its management device, in perspective a little more detailed representation,
• FIG. 4 the Aufzieharm after FIG. 3 , in perspective, seen from another direction,
• FIG. 5 a modified embodiment of the mounting device according to the invention, in a perspective view.

In FIG. 1 is a mounting device 1 for mounting a profile wire 9 on a roller 3 illustrated. The roller 3 is, for example, a carding roller of a carding machine. To the mounting device 1 includes at least one Aufzieharm 4 and a in FIG. 1 dashed frame 5, which serves to support the Aufzieharms 4. The roller 3 may be rotatably mounted depending on the Aufziehbedingungen in the frame 5 with preferably horizontally oriented axis of rotation 6. This is the case when the winding process takes place outside a carding machine. If the mounting process takes place within a carding machine, the roller 3 is rotatably mounted on the frame 5 of the carding machine. For rotating drive of the roller 3 in the direction of in FIG. 1 Plotted arrow 7 is a motor 8, which is in driving relationship with the roller 3, for example via a chain drive.

The all-steel clothing 2 preferably consists of a continuous, on a roll 3, wound profile wire 9, which comes from a supply spool 10. In certain applications, it may be necessary that a distance is provided between the side surfaces of the raised profile wire 9. For this purpose, the roller 3 may have spaced-apart grooves which receive the profile wire 9. The supply reel 10 may be received by the frame 5 or otherwise stored. If the motor 8 rotates the roller 3, it pulls the profile wire 9 from the supply spool 10 via the mounting arm 4. In this case, the entire shell of the roller 3 is gradually wound with the profile wire. Accordingly, the Aufzieharm 4 follows the winding process and is axially, ie adjusted or moved parallel to the axis of rotation 6. For this purpose, the Aufzieharm on the frame 5 by means of a guide device 11 is movably held. To the guide means 11 include, such as FIG. 2 schematically indicates, at least one guide rail 12 and a guide carriage 13. The guide rail 12 is preferably oriented parallel to the axis of rotation 6. The guide device 11 may be formed as a sliding guide or as Wälzkörperführung. The guide rail 12 may have a round cross section or a different cross section. In the present embodiment, the guide carriage 13 is mounted on a plurality of rollers 14 on the guide rail 12, of which in FIG. 2 a first roller 15, a second roller 16 and a third roller 17 are illustrated.

In the exemplary embodiment presented, the guide carriage 13 can pivot about the guide rail 12, so that the mounting arm 4 automatically adapts in its orientation to the running direction of the profiled wire 9 and thus to the diameter of the roller 3. Alternatively, however, a guide device can be provided which does not allow rotation of the guide carriage 13 against the guide rail 12.

The guide arm 4 is held on the guide carriage 13. This serves in FIG. 2 a connecting device 18, which allows a low mobility of the Aufzieharms 4 with respect to the guide carriage 13 in the direction of the arrow 19. The connecting device 18 is in particular also made FIG. 4 seen. The direction indicated by the arrow 19 coincides with the in FIG. 2 and 4 coincided by the arrow 20 longitudinal direction of the profile wire.

Between the Aufzieharm 4 and the guide carriage 13, an example hydraulically operating force measuring device 21 is arranged. This can be adapted to a displacement of the Aufzieharms 4 against the carriage 13 in the direction of the arrow 19 against the force of a precise to indicate working spring element.

Alternatively, the connecting device 18 may also be replaced by a deformable element which connects the Aufzieharm 4 with the guide carriage 13. Suitable deformation sensors, such as strain gauges or the like, can then detect the force-proportional deformation and bring about, for example via an electrical display device for display. It is also possible to display the deformation of such spring elements by means of mechanical display devices, for example in the form of lever gears.

For further explanation of the mounting device is on FIG. 3 and 4 Referenced. This, in particular, illustrates the Aufzieharm 4. It can, as shown, consist of a first connected to the guide carriage 13 member 22 and a second member 23 which is connected to the first member 22, for example via a hinge 24. At the various members 22, 23 of the Aufzieharms 4 different devices can be maintained. For example, a brake device 25 with a fixed brake shoe 26 and a movable brake shoe 27 may be disposed on the first member 22. The movable brake shoe 27 may be biased by a not further illustrated spring means on the fixed brake shoes 26 out. The braking device 25 may be formed in the manner shown or in any other suitable manner. It serves to inhibit the passage of the profile wire in order to give it a defined tension.

At a suitable location, for example at the first member 22, also a further device, such as a straightening device 28 may be arranged. The straightening device 28 is in particular provided in the profile wire possibly existing bends to eliminate. For this purpose, guide rollers 29 serve, which are arranged with mutually parallel axes of rotation on a common carrier 30. If necessary, the individual straightening rollers 29 can be arranged to be adjustable in order to adapt them to different profile wires.

At or between the links 22, 23, a guide roller 31 may be arranged, via which the profile wire can run on its way along the Aufzieharms 4. In front of the deflection roller, a tilting device 32 can be arranged on the second member 23. This is preferably intended to eliminate a swirl present in the profile wire or to produce in a desired manner. For this purpose, the tilting device 32 may have one or more jaws, profile pieces, rollers or the like positively engageable with the profile wire engageable means, the profile wire a desired angular position with respect to in FIG. 3 dotted longitudinal axis 33 issue. The tilting device 32 may be provided with various adjustment means in order to adapt to the current conditions and to be able to make appropriate adjustments.

The Aufzieharm 4 may carry other devices or devices, such as the device 34, which serves to guide the profile wire 9 in the immediate vicinity of the roller 3. For this purpose, the device 34 has a means 41 which rests on the surface of the roller 3 during the mounting process. This means 41 may be rotatably mounted or fixedly arranged on the device 34. If the means 41 is rotatably mounted, it is preferably designed in the form of a roller, so that the device 34 can be moved with low friction over the surface of the roller 3. Between two rotatably mounted support means 41, a guide means 42, for example in the form of a roll, arranged be that exerts a force on the all-steel clothing 2 during the Aufziehvorgangs. This guide roller 42 ensures that in an all-steel clothing 2, in which the profile wire 9 is to be wound up without gaps, the successive turns of the profile wire 9 are arranged touching each other. If the means 41 is fixedly arranged on the device 34, it may be formed as a thin guide pin, and assume the pressing function of the guide means 42. A fixedly arranged on the device means 41 is preferably used when mounting the all-steel clothing 2 in the end of the roller 3. This allows the complete mounting of the all-steel clothing 2 also in the area of the roll 3, in which the bearing surface for thicker support means 41 is no longer present. The device 34 may comprise both rotationally mounted and fixed means 41. Then the device may comprise adjusting means which allow the use of these means 41 in alternation. With these adjusting means, the means 41 can be additionally adjusted or rotated in all directions, so that after adjustment of the Aufzieharms 4, the means 41 rest optimally on the surface of the roller 3.

• Im Betrieb läuft der Profildraht 9, wie in Figur 1 dargestellt, über den Aufzieharm 4 auf die langsam drehende, von dem Motor 8 angetriebene Walze 3. Diese zieht den Profildraht 9 dabei durch den Aufzieharm 4. An dem Aufzieharm 4 wirken verschiedene, insbesondere die in Figur 3 und 4 dargestellten Einrichtungen und Elemente auf den Profildraht 9 ein. Zu diesen Einrichtungen und Elementen gehören zum Beispiel die Bremseinrichtung 25, die Richteinrichtung 28, die Kippvorrichtung 32 und gegebenenfalls weitere Lenkrollen, Leitrollen oder sonstige Teile. Alle genannten Einrichtungen und sonstigen den Draht berührenden Einrichtungen beeinflussen letztendlich die zwischen der Walze 3 und dem Aufzieharm 4 wirksame Längszugkraft des Profildrahts 9. Die entsprechende an dem Aufzieharm 4 kumulativ wirksame Gegenkraft wird von der Kraftmesseinrichtung 21 erfasst. Diese misst letztendlich die Kraft, mit der sich der Kraftmessarm 4 an dem Führungsschlitten 13 abstützt. Diese Kraft ist im Wesentlichen gleich der im Profildraht wirkenden Zugkraft.

The mounting of a profile wire 9 on a roller 3 is as follows:

• In operation, the profile wire 9 runs as in FIG. 1 represented, on the Aufzieharm 4 on the slowly rotating, driven by the motor 8 roller 3. This pulls the profile wire 9 while the Aufzieharm 4. At the Aufzieharm 4 act different, especially those in FIG. 3 and 4 shown devices and elements on the profile wire 9 a. These devices and elements include, for example, the braking device 25, the straightening device 28, the tilting device 32 and possibly other castors, Guide rollers or other parts. All said devices and other wire-contacting devices ultimately affect the effective between the roller 3 and the Aufzieharm 4 longitudinal tensile force of the profile wire 9. The corresponding cumulative effect on the Aufzieharm 4 counterforce is detected by the force measuring device 21. This ultimately measures the force with which the force measuring arm 4 is supported on the guide carriage 13. This force is essentially equal to the tensile force acting in the profile wire.

With the presented principle, it is possible to precisely measure the tensile force effective in the profile wire. In particular, disturbances of the measurement due to easy or heavy passage of the wire through the straightening device 28 or the tilting device 32 are irrelevant with regard to the measurement result. The measurement is simple and accurate.

FIG. 5 illustrates a modified embodiment for realizing the measuring principle according to the invention. For the embodiment according to FIG. 5 the previous description applies initially correspondingly, wherein the same reference numerals have been used. However, unlike the description above, the measuring device 21 is not arranged between the mounting arm 4 and the guide carriage 13, but between the guide device 11 and the frame 5. To the force measuring device 21 here include at least two force sensors, via which the guide rail 12 is connected at its two ends to the frame 5. In FIG. 5 this is only illustrated for one end 35 by means of a force sensor 36. The opposite end 37 of the guide rail 12 is then connected via a just such force sensor 36 to the frame 5. The two force sensors 36 then cumulatively indicate the force with which the guide rail 12 is supported on the frame 5. This power again corresponds to the tensile force prevailing in the profile wire 9.

In the case of the mounting device 1 according to the invention, the mounting arm 4 is held on a guide device 11 whose guide direction is aligned parallel to the axis of rotation 6 of the roller 3 to be picked up. For detecting the tensile force in the profile wire 9, a force measuring device 21 is provided, which detects the entire acting on the Aufzieharm 4 at least in the wire longitudinal direction force. Thus, substantially all the forces acting on the profile wire 9 are detected, namely both braking forces of a braking device 25 and braking forces of other devices, such as straightening devices 28, tilting devices 32 or the like.

LIST OF REFERENCE NUMBERS

1

puller

2

Metallic wire

3

roller

4

winding arm

5

frame

6

axis of rotation

7

arrow

8th

engine

9

profile wire

10

supply spool

11

guide means

12

guide rail

13

guide carriage

14

roll

15

first role

16

Second role

17

Third role

18

connecting device

19

Arrow for agility of the Aufzieharms

20

Arrow for longitudinal and direction of the profile wire

21

Force measuring device

22

First member

23

Second link

24

joint

25

braking means

26

Fixed brake shoes

27

Mobile brake shoes

28

leveler

29

straightening rollers

30

carrier

31

idler pulley

32

tipping

33

longitudinal axis

34

Facility

35

First end of the guide rail

36

force sensor

37

Second end of the guide rail

41

support means

42

leadership

Claims (14)

Winding device (1) for an all-steel clothing (2) on a roll (3),
with a frame (5),
on which a mounting arm (4) is adjustably mounted by means of a guide device (11) in the direction of an axis of rotation (6) of a roller (3) to be associated with the all-steel clothing (2),
with a force measuring device (21) for measuring a force acting on the mounting arm (4) during the mounting process. Mounting device according to claim 1, characterized in that the Aufzieharm (4) carries a braking device (25) which serves to brake the Aufziehvorrichtung (1) continuous all-steel clothing (2). Mounting device according to claim 1, characterized in that the mounting arm (4) carries a straightening device (28) for straightening the all-steel clothing (2) passing through the mounting device (1). Mounting device according to claim 1, characterized in that the Aufzieharm (4) carries a tilting device (32) for erecting the through the Aufziehvorrichtung (4) continuous all-steel clothing (2). Mounting device according to claim 1, characterized in that the force measuring device (21) between the guide means (11) and the Aufzieharm (4) is arranged. Mounting device according to claim 5, characterized in that the force-measuring device (21) includes a connecting device (18) via which the Aufzieharm (4) with the guide means (11) in a direction (19) is freely movably connected. Mounting device according to claim 5, characterized in that the force measuring device (21) includes a connecting device (18) via which the Aufzieharm (4) with the guide means (11) in a direction (19) is movably connected against a spring force. Mounting device according to claim 5, characterized in that the connecting device (18) contains an elastically deformable element. Mounting device according to claim 6 or 7, characterized in that the force measuring device (21) in the direction (19) is effective. Mounting device according to claim 1, characterized in that the guide device (11) has a stationarily mounted guide rail (12) and a guide carriage (13). Mounting device according to claim 10, characterized in that the guide carriage (13) on the guide rail (12) is guided longitudinally and rotatably. Mounting device according to claim 10, characterized in that the force measuring device (21) between the guide carriage (13) and the guide rail (12) is effective. Mounting device according to claim 1, characterized in that the force measuring device (21) between the guide rail (12) and the frame (5) is effective. Mounting device according to claim 1, characterized in that the roller (3) is associated with a drive motor (8).

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