WO2010045746A1

WO2010045746A1 - Setting the separation

Info

Publication number: WO2010045746A1
Application number: PCT/CH2009/000331
Authority: WO
Inventors: Ueli Stutz; Daniel Sommer
Original assignee: Maschinenfabrik Rieter Ag
Priority date: 2008-10-24
Filing date: 2009-10-15
Publication date: 2010-04-29
Also published as: CH699788A2; CN102264960B; EP2352866A1; CN102264960A; EP2352866B1

Abstract

The invention relates to a combing device for combing a fibrous material (F), which is supplied to a clamping assembly (1) that is mounted in a machine frame (MS) and has a lower and upper clamping plate (2, 3), wherein the upper clamping plate (3) is movably mounted with respect to the lower clamping plate (2) so as to form a clamping point (KS) and is pressurized by a loading unit so as to produce a clamping force, and the lower clamping plate (2) – viewed in the direction of a downstream, rotatably mounted draw-off roller (8) – is fixedly attached in the machine frame, and provided with a feeding means (5) for supplying the fibrous material (F) to the clamping point (KS) of the clamping assembly, with which beneath a combing cylinder (16) is associated that is rotatably mounted in the machine frame (MS) and equipped with at least one combing segment (19) and a draw-off segment (20) on the periphery thereof, wherein the draw-off roller (8) which can be pressurized by loading means (B1, B2) can be advanced toward the draw-off segment so as to form a clamping line (KL). In order to provide settings for different fibrous materials, it is proposed to mount the draw-off roller (8) in a holder (10) which is movably mounted in the radial direction of the combing cylinder (16) and pressurized by way of load means (B1, B2), wherein the holder is connected to an adjusting device (17), by way of which the distance (E, E1) between the draw-off roller (8) and the lower clamping plate (2) can be set.

Description

Attitude of Ecartement

The invention relates to a combing device for combing a Faserermateri- äls according to the preamble of claim 1.

A combing machine, whereby a tear-off roller cooperates with a tear-off segment of a combing roller for the tear-off process, has already been developed by Heilmann in 1845. As can be seen from the Handbook of Cotton Spinning Band Il / 5th edition on pages 167 to 174 by Otto Johannsen, the fiber package torn off by a tear-off roller (here tear-off cylinder) in cooperation with a tear-off segment was delivered to a subsequent pair of rolls where connected to the end of an already formed web, or is soldered. The pair of rollers is driven by a pilgrim step movement. That is, before a new withdrawn fiber packet is supplied to the roller pair, this is driven in an opposite direction of rotation, in which the end of the already formed web is conveyed back by a partial amount against the actual conveying direction. Once this process is completed, the front end of the new fiber packet is placed on the end of the transported back end of the fibrous web (roof tile-like), or overlapped. During the subsequent forward movement of the pair of rollers, the region of the overlap passes into the nip line of the pair of rollers, as a result of which solidification or soldering of the fiber packet to the end of the nonwoven takes place. After completion of the tearing process, the feed cylinders feed a certain amount of the roll of wadding unrolled from a wrapped roll into the opened tongs. As a result, the length of the fiber tuft projecting beyond the clamping point of the tongs increases by the amount supplied, which is available for the subsequent combing operation in the event of subsequently closed tongs. After the combing process through the combing segment of the combing cylinder, the combed out end of the tuft is transferred with the tongs open again under the action of the tear-off segment into the nip between the tear-off roller and the departure segment. All, then the fibers detected by the nip are removed from the present tuft. An adaptation of the device to different fiber materials is not provided. From CH-PS 150873 a further embodiment is known which works according to the Heilmann principle (interaction of a tear-off roller with a tear-off on the combing cylinder). In this case, various embodiments are shown. In one solution, the nipper unit is fixedly mounted in the machine frame, while the rip-off roller, which cooperates with a tear-off, performs a horizontal movement relative to the nipper unit during the combing process. In another presented solution, the tear-off roller moves only in the radial direction of the combing cylinder, while the nipper unit moves in the horizontal direction to the tear-off roller. Thus, the Kämmyorgang and the tearing off in relation to the distance between the pliers and the clamping point of the tear-off roller should be better coordinated. The ends of the tear-off roller are stored in sleeves, which are received in forks. In addition, the sleeves, to achieve the clamping effect of the tear-off rollers, acted upon by weight-loaded hooks.

The embodiment described above has many moving parts, which have a significant limitation in terms of achieving a high Kammspielzahl. From the known literature with respect to the classical Heilmann method (distance of the fixed-mounted nipper unit to the tear-off roller is the same) is not known that the distance between the pliers and the tear-off roller is adjustable. That it is to be assumed that in this embodiment an adjustment of "Ecar- tement" was not provided.The term "Ecartement" is used in today's combers and determines the smallest distance between the lower pliers plate of the pliers and the nip of the tear-off.

The size of the ecartement ultimately determines the length of the tuft protruding from the closed tongs for the combing process and thus has a direct influence on the height of the noil content (proportion of combed fibers). However, with modern combing machines, this setting is absolutely necessary in order to achieve the desired quality of a combing machine belt for the subsequent process stages. In particular, with regard to raw material prices, it is necessary to precisely adjust the proportion of noil content in order to avoid unnecessary separation, in particular To avoid that of good fibers (long fibers), which would bring a reduction in productivity.

The setting of the Ecartement depends on the fiber material, which is presented to the combing machine for processing. Criteria such as the weight of the wadding, the pile (fiber length fraction) and the structure (fiber layer, uniformity) of the wadding provided must be taken into consideration.

Further references to the term "ecartement" are also to be taken from the reference "Die Kurzstapelspinnerei: Volume 3: Kämmerei, Strecken, Flyer, The Textile Institute (ISBN 3-908.059-01-1) on page 16.

The invention thus has the object to improve known designs and to propose a device based on the known Heilmann design, which makes it possible to perform a Ecartement setting even with a fixed lower pliers plate, so the machine to different material templates exactly adjust.

This object is achieved by proposing that the tear-off roller is mounted in a, in the radial direction of the combing cylinder movably mounted, loaded with loading means recording, wherein the receptacle is in communication with an adjusting device, via which the distance between the tear-off roller and the lower pliers plate is adjustable.

it the proposed movably mounted receptacle for the tear roller can thus be made on the one hand, the already known radial delivery to Abreisssegment. On the other hand, by the associated with the recording actuator, the adjustment of the distance (Ecartement) between the lower tong plate and the clamping point between the tear roller and tear-off allows. As a result, the Heilmann method is universally applicable and can be used with today's constructive knowledge for higher Kammspielzahlen, as long as the subsequent soldering process is tuned accordingly. This gives an advantageous combination of the device for the delivery of Ab- Tear roller for tear-off segment in conjunction with the simultaneous adjustment of Ecartement.

Advantageously, the loading means are designed as bellows cylinders, which are acted upon by compressed air via a compressed air source and which are supported in each case with its one end directly or indirectly on the machine frame and with its other end on the receptacle.

The proposed use of Belgzylindem for the load of the tear roller vibrations can be reduced, while only a small footprint despite high applied pressure forces for these bellows cylinder is necessary. In addition, such bellows cylinder can compensate for certain angular deviations from their loading direction, making them excellent for this. Use are suitable, as will be described in more detail in subsequent embodiments. That is, the resulting by the adjustment of the tear-off roller displacement of the support surface of the bellows cylinder can be compensated without loss of functionality by the flexibility of the bellows cylinder (tolerated angular deviation). The use of Balgzylindem in this application allows z. As well as a continuous adjustment of the clamping force, as well as a central monitoring of the loading means.

Furthermore, it is proposed that the receptacle consists of two pivoted on one axis levers, the axes are mounted on the machine frame or on an associated with the machine frame element and each lever has a bearing point for the storage of the tear-off, which is between them Bearing points extends.

It is advantageous that in each case a bellows cylinder is supported for the load of the tear-off roller on each lever.

By this embodiment, a simple device is proposed, which on the one hand allows good accessibility to Kämmvorrichtung and on the other hand a simple and flexible control via the load device (bellows cylinder).

It is also proposed that the axes are mounted for the lever on a pivotally mounted in the machine frame frame, at which at a distance to the Axes guide elements are provided for the levers, each having a stop surface which limits the pivotal movement of the arms in the direction of the combing cylinder and the bellows cylinder are fastened with its one end to the pivotable frame and the other end is supported on a support surface of the respective arm , which is located above the bearings of the tear-off roller.

Through the use of an additionally attached to the machine frame pivotally mounted frame is made possible that the tear-off roller including its load device can be pivoted completely upwards in an inoperative position to z. B. access to the combing device to obtain maintenance. The proposed attachment of guide elements with a stop surface ensures that the levers are safely mitverschwenkt with the frame up and not remain in the Abreisssegmentes. This will be described in more detail in a subsequent embodiment.

In order to safely position the bellows cylinder in its working position, it is proposed that the respective support surface has an opening into which an extension projecting beyond the end face of the respective bellows cylinder protrudes when it rests on the support surface.

It is advantageous if the extension of the respective bellows cylinder and the opening in the support surface are formed such that together they exert a clamping action. This makes it possible that when a negative pressure to the bellows cylinder lifting the pressure rollers can be generated by the entrainment via the clamping action. Under certain circumstances, so that the lifting and advancing the Abreisswalzen be carried out for Abreisssegment, whereby more guide elements would be unnecessary.

In order to safely control the movement of the tear-off roller to the tear-off segment with respect to the angular position of the combing cylinder, it is proposed that guide elements are mounted on the axis of the combing cylinder in a rotationally fixed manner, which are formed as cams which surround the circumferential surface of the tear-off roll at a radial distance from the axis of rotation of the combing cylinder lead if the tear-off roller is outside the circumference of the tear-off segment. For easy adjustment of Ecartement is proposed that the axes of the pivotable lever via an adjusting device are adjustable in their position. In this case, a design is conceivable, wherein the respective axis is mounted eccentrically on a rotatably mounted adjusting disc and at least one means for fixing the adjusting disc is provided.

In general, a plurality of combing devices (combing heads) are arranged side by side, which work together synchronously with each other and usually also have common drive elements. Thus, it is advantageous if a common actuator for all combing devices for a simultaneous adjustment of the distance between the tear-off rollers and the lower tong plates is provided in all combing devices. Since all the combing heads usually have the same material for processing, the same ecartement must be set everywhere. Therefore, a central setting of advantage and allows a quick and easy adaptation of all side by side working combing heads.

Furthermore, an embodiment is proposed wherein a number of juxtaposed Kämmvorrichtungen are provided, and thereby the adjusting devices for adjusting the position of the respective Abreißwalze the combing devices individually or in groups are controlled by a central control unit. In such an embodiment, it is advantageous if the individual adjusting devices are each equipped with electric servomotors, which can be controlled by a central control unit individually or in groups. Instead of a servomotor and the use of pneumatic cylinders would be possible, which are controlled via the central control unit and operate a suitably trained adjustment.

Further advantages will be shown and described in more detail by means of subsequent embodiments.

Show it:

Fig. 1 is a schematic side view of a combing head with the claimed device according to the invention during the tearing process.

Fig. 2 is a schematic side view of Figure 1 during Auskämmvorgang Fig. 3 is a partial view X of Figure 1 Fig. 4 is a schematic plan view of a comber with several juxtaposed combing heads claimed in the invention actuating devices and their control.

Fig. 1 shows a schematic side view of a combing head, of which several are usually arranged side by side. In this case, a schematically indicated nipper unit 1 is provided above a combing cylinder 16. The combing cylinder 16 is rotatably mounted about the axis 15 in the machine frame. On its circumference, the combing cylinder 16 has a Kämmsegment equipped with sets 19 on which a tear-off segment 20 is arranged opposite. In addition, rotationally fixed on the axle 15 via hubs 23 cams 22 are mounted, as can be seen in particular from FIG. 3. The nipper unit 1 consists of a fixed fixed in the machine frame lower nipper plate 2, on which about an axis 4, an upper nipper plate 3 is pivotally mounted via lever 6. Clamping means (eg spring arms), not shown, engage with the pivotable levers 6 of the tong plate 3, over which a clamping force is produced at the clamping point KS between the forceps clamps for clamping a fiber material F when the forceps are closed (see FIG , Within the nipper unit 1, a feed roller 5 is rotatably arranged, which is connected to a drive, not shown, for the intermittent conveying of the fiber material F.

As can also be seen from FIG. 1, a tear-off roller 8 rests on the outer circumference U of the tear-off segment 20 and forms with it a clamping line KL. As can be seen in particular from FIG. 3 (view X of FIG. 1), the axis 9 of the tear-off roller 8 is rotatably supported by bearings L in a bearing receptacle 11. Since the bearing elements at both ends of the tear-off roller 8 are the same, they are also provided with the same reference numerals. The bearing receptacle 11, which is part of a receptacle 10, is fixedly connected to a lever 12, which is mounted in each case pivotable about an axis 13 on a setting disk 17. This can be seen in particular Figures 1 and 2. The adjusting disk 17 is rotatably mounted on a frame 24 about an axis 18. About a screw 14 shown schematically, the rotational movement of the disc 17 is prevented on the axis 18 and the frame 24th fixed in the set position. In the region of the circumference of the adjusting disc 17 markings 25 are mounted, which allow in conjunction with a mark 26 on the adjusting plate 17 an exact positioning of the adjusting disc. The axis 13 is eccentrically mounted at a distance A to the axis of rotation 18 of the adjusting disk 17.

After loosening the screw 14, the adjusting disc 18 z. B. by hand or other means z. B. be rotated counterclockwise. This adjustment can be made using the markers 25, 26. This results in a shift of the nip KL to the lower tong plate 2, whereby the distance E to the distance E1 changes. This distance E is also referred to as "Ecartement", which, as already described, exerts an influence on the combing out operation. After the adjustment of the clamping line KL, the adjusting disk 17 is fixed again by means of the screw 14.

With the proposed adjustment, it is now possible to easily adjust the device according to the submitted fiber material in order to achieve an optimal and desired combing result.

The setting option shown on the adjusting disk 17 with the eccentrically arranged axis 18 represents only an exemplary embodiment of many other ways in which such adjustment can be performed. In the below-described embodiment of Figure 4 z. B. the adjustment via actuators.

As can also be seen in Figure 1, the lever 12 is fixedly connected at its end with a hub 21, via which it is rotatably mounted on the axis 13 already described. Above the bearing receiver 11 (seen approximately in the radial direction to the axis 15 of the combing cylinder 16), a pressure force is exerted on the respective lever 12 via a bellows cylinder B1 or B2. The respective bellows cylinder B1, or B2 lies with its end face 30 on a support surface 28 of the lever 12. The bellows cylinder B1, or B2 is provided with an extension 31, which projects into an opening 33 of the support surface 28 for lateral stabilization. At the opposite end of the end face 30, the bellows cylinder B1, or B2 are mounted in a head part 35, at which at the same time the supply lines 37, 38 for the application of compressed air from a compressed air source 40 via a valve 42. The valve 42 is controlled via the line 43 by a control unit ST. At the respective head part 35, a bracket 36 is attached, which is fastened via the screws 44 to the frame 24. The frame parts 24 (FIG. 3) are connected to one another by struts V1, V2. There may be provided further such struts for mechanical stabilization.

As can be seen from Figure 1, the frame 24 is pivotally mounted about a pivot axis 46 on the machine frame MS. By pivoting the frame 24 about the axis 46 in an upper position, as shown in phantom in Figure 1, the free access in the area of the nipper unit 1 is made possible for maintenance and cleaning purposes. To fix the respective position (operating position, Ausserbetriebsstellung) of the frame, z. B. on the frame 24, or on the transverse strut V1 cams 48 attached, which, depending on the position, engage in correspondingly formed locking means 50a and 50b and fixed. The locking devices 50a, 50b each consist of a provided with oblique ramp surfaces bolt 52a, or 52b, which are fixed to the machine frame MS. This attachment of the latch 52a, 52b is such that the latch can move by a certain amount when engaging or disengaging the cam 48. This movement takes place against the force of a correspondingly arranged spring 55, which is also supported on the machine frame MS. By the already described and shown in Figure 1 inclined contact surfaces of the latch 52a, 52b is a problem-free release, or locking in the respective position possible. Again, a variety of design variants are possible to fix the frame in the respective position.

In order to avoid the sliding out of the extensions 31 from the respective opening 33 during pivoting of the frame in the position shown in phantom in Figure 1, a U-shaped stop 58 is provided on the frame 24, on the Support surface 60, the lower edge 61 of the lever 12 comes to rest. Ie. the pivotal movement of the lever 12 about its axis 13, which would take place as a result of the weight of the tear-off roller when pivoting in the dot-dash line position is prevented by the respective stop 58. As can be seen from Figure 1, the support surface 60 in this operating position shown a small distance from the lower edge 61 of the lever 12 so that the pressurization of the tear-off roller 8 is not hindered by the bellows cylinder B1, B2.

It can also be seen from FIG. 1 that the fiber package P withdrawn via the action of the nip line KL from a fiber tuft FB is placed on the end of a fiber fleece V already formed on a screen drum T and brazed thereto with partial overlap. The nonwoven fabric V thus formed is removed via take-off rollers 64 of the screen drum T and fed to a device not shown in detail for forming a sliver. To the screen drum T, a negative pressure is applied to guide the fiber web V. The screen drum T, or the device for forming a combed nonwoven fabric can, for. B. the execution correspond, as shown and described in detail in the published WO 2006/012759 A1.

As shown schematically in Figure 1, is the tear-off, wherein the tear-off roller 8 rests with its peripheral surface U2 under pressure on the circumference U of the Abreisssegmentes 20, a fixed comb K in engagement of the tongs 4 outstanding Faserbartes FB. In this case, the rear ends of the detected by the nip KL fibers are pulled through the set of Fixkammes K and combed out. As already described, the pressure force on the tear-off roller 8 takes place via the bellows cylinders B1, B2, which are acted upon by compressed air source 40 via a valve 42 by compressed air. This is controlled by a schematically represented control unit ST. It is also possible that the compressive force can be varied during a Kammspieles.

The locking device 50a, which holds the frame 24 in the operating position, is designed in such a way that no automatic unlocking can take place during operation due to the pressure force applied via the bellows cylinders B1, B2. Under conversion Stands are additional elements (not shown) to install, so that the frame 24 is securely locked in the operating position against the pressure force of the bellows cylinder.

In the position shown in FIG. 1 (see also FIG. 3), the circumferential surface U1 of the cam disk 22 is located at a small distance from the circumferential surface U2 of the tear-off roller 8. The tear-off roller 8 with the tear-off segment 20 can thus provide a clamping line KL for clamping the fiber material F. form. The fibrous material F can be supplied in the form of a cotton wool or in the form of juxtaposed slivers to the nipper unit 1 from a corresponding source (cotton wool, teapot). Upon further rotation of the combing cylinder 16, the tear-off segment 20 moves outside the effective range of the tear-off roller 8, whereby the tear-off roller 8 in the radial direction to the axis 15 by the pressure force of the bellows cylinder B1, B2 or its own weight (if the pressure load is reduced by the bellows cylinder) the combing cylinder 16 are moved until the peripheral surface U2 of the tear-off roller comes to rest on the peripheral surface U1 of the cam 22. The cams 22 are fixed in rotation with a hub 23 on the axis 15 of the combing cylinder 16. As shown schematically in FIG. 3, the tear-off segment 20 can also be secured against rotation on this hub 23. As can be seen from Figure 2, the combing segment 19 passes into the region of the nipper unit 1, which has now been closed by a device not shown in detail and forms a clamping point KS for the tuft hanging out of the tuft FB. The tuft FB is engaged by the worsted 19 and is combed out. The radius R1 of the cam disk 22 is greater than the radius RK of the outer envelope surface of the combing segment 19, which ensures that the circumferential surface U2 of the tear-off roller 8 is at a distance from the outer enveloping circle of the combing segment 19 during the combing process shown in FIG. After completion of the combing process, the nipper unit is opened again and the tuft FB is lifted by the tear-off segment 20 and thus enters the region of the nip KL between the tear-off segment 20 and the tear-off roller 8. By the appropriate design of the peripheral surface U1 of the cam 22 comes the peripheral surface U2 of the tear-off roller 8 again in contact with the tear-off segment 20. The tear-off roller is constantly in rotary motion and thus does not have to be moved when passing on the tear-off segment. be accelerated, which favors a trouble-free tearing process. The tear-off process begins again from again, with again the fixed comb K comes into engagement.

FIG. 4 schematically shows a series of side-by-side combing devices (called "combing heads" for short) each provided with an adjustable rip-off roller 8, as shown in the embodiment of FIG. The adjustment of the position of the respective pivot axis 13 of the pivot arms 12 in this case takes place via a hub 66, which is connected to the respective pivot axis 13 and each with a servo motor M1 to M4. The servomotors M1 and M2 are connected via the control line 68 and the servo motors M3 and M4 via the control line 70 to the central control unit. Thus, two groups I and II of combing heads K1, K2, and K3, K4 have been formed with respect to the control of the adjusting devices S1, S2, and S3, S4. By way of example, only four combing heads have been shown, wherein in practice a much larger number of combing heads can be arranged next to one another.

The mounting of the axles 13 can take place in the machine frame MS in correspondingly formed guides (not shown), by way of which a displacement of the pivot arms 12 and thus of the tear-off roller 8 can take place. The fiber ribbons F1 to F4 formed and delivered to the individual combing heads K1 to K4 are fed to a following drafting device via guide means (not shown) (eg a conveyor table). In the present example, further slivers F5 to F8 are shown, which have been issued by not shown further combing heads K5 to K8. In the drafting system S, the slivers F1 to F8 are stretched and combined to form a sliver, which is deposited via a not shown tape storage in a pot in loop form.

With the proposed division of the control of the adjusting devices S1, S2 or S3, S4 into two groups I and II, it is possible to set different positions of the tear-off rollers 8 in groups. This would be necessary if a different fiber material is combed in each group of combing heads. With this device, it would then be possible to produce mixtures with different fiber materials on the combing machine, which blends with one another on the following drafting system S. be mixed. In this case, an embodiment is conceivable, wherein each adjacent combing a respective different fiber material is supplied, whereby even better mixing in the subsequent drafting can be achieved. In this case, the fiber material can be supplied to the individual combing heads in the form of a plurality of slivers, which are withdrawn from the combing heads delivered pitchers.

The expression "group-wise control" also includes an embodiment in which the combing heads form only one group, in which each combing head K1-K8 is provided with one servomotor S1-S8 for the simultaneous adjustment of the detaching rollers 8, wherein all servomotors S1 to S8 are simultaneously controlled by the central control unit via a common control line (not shown).

By the proposed device a simple adjustment to different fiber materials is possible. Also, it is possible by an individual control of the individual adjusting devices for the Abreisswalzen to process simultaneously different fiber materials, which can then be mixed in the following drafting on the combing machine. The use of bellows cylinders makes possible a space-saving loading device which includes further advantages such as vibration damping, noise reduction, controlled pressure loading and a compensation of manufacturing tolerances.

Claims

claims

A combing device for combing a fiber material (F) supplied to a nipper unit (1) mounted in a machine frame (MS), having a lower and upper nipper plate (2, 3), the upper nipper plate (3) being related to on the lower pliers plate (2), for the formation of a clamping point (KS), is movably mounted and for generating a clamping force is acted upon by a loading device and the lower pliers plate (2) - seen in the direction of a subsequent rotatably mounted Abreisswalze (8) - fixed in the machine frame and with a feed means (5) for feeding the fiber material (F) to the clamping point (KS) of the nipper unit, which is assigned below a, in the machine frame (MS) rotatably mounted combing cylinder (16) on its periphery with at least one Kämmsegment (19) and a tear-off segment (20) is provided, wherein the tear-off segment, the, on loading means (B1, B2) acted upon tear-off roller (8), the image a nip line (KL), can be fed, characterized in that the tear-off roller (8) in a, in the radial direction of the combing cylinder (16) movably mounted, with loading means (B1, B2) acted upon recording (10) is mounted, wherein the Recording with an adjusting device (17) is in communication, via which the distance (E, E1) between the tear-off roller (8) and the lower tong plate (2) is adjustable.

2. combing device according to claim 1, characterized in that the loading means consist of a compressed air source (40) acted upon by compressed air Balgzylindem (B1, B2), each with its one end (35) directly or indirectly on the machine frame (MS) and with its other end (30) supported on the receptacle (10).

3. combing device according to claim 2, characterized in that the receptacle (10) consists of two on one axis (13) pivotally mounted levers (12), wherein the axis on the machine frame (MS) or on an associated with the machine frame element ( 24) is attached and each lever one Bearing point (11) for the storage of the tear-off roller (8), which extends between these bearings!

4. combing device according to claim 3, characterized in that on each lever (12) in each case a bellows cylinder (B1, B2) for the load of the tear-off roller (8) is supported.

5. combing device according to one of claims 3 or 4, characterized in that the axes (13) for the lever (12) on a pivotally mounted in the machine frame (MS) frame (24) are mounted, on which at a distance from the axes guide elements (58) are provided for the levers (12), each having a stop surface (60) which limits the pivotal movement of the lever in the direction of the combing cylinder (16) and the bellows cylinder (B1, B2) with its one end (35) the pivotable frame (24) are fixed and the respective other end (30) on a support surface (28) of the respective lever (12) is supported, which is located above the bearing points (11) of the tear-off roller (8).

6. combing device according to claim 5, characterized in that the respective support surface (28) has an opening (33), in which a, the end face (30) of the respective bellows cylinder (B1, B2) protruding extension (31) protrudes when this on the support surface (28) rests.

7. combing device according to claim 6, characterized in that the extension (31) of the respective bellows cylinder (B1, B2) and the opening (33) in the support surface (28) are formed such that they exert a clamping action together.

8. combing device according to one of claims 1 to 3, characterized in that rotatably on the axis (15) of the combing cylinder (16) guide elements (22) are mounted, which are designed as cams which the peripheral surface (U2) of the tear-off roller (8) at a radial distance from the axis of rotation (15) of the combing cylinder (16), when the tear-off roller (8) is outside the peripheral region (U) of the tear-off segment (20).

9. combing device according to one of claims 3 or 4, characterized in that the axes (13) of the pivotable lever (12) via an adjusting device (17, S1-S4) are adjustable in position.

10. combing device according to claim 9, characterized in that the respective axis (13) is mounted eccentrically on a rotatably mounted adjusting disc (17) and at least one means (14) for fixing the adjusting disc (17) is provided.

11. combing device according to any one of claims 1, 2,3,9 or 10 to 11, characterized in that a series of juxtaposed Kämmvorrichtungen are provided, wherein a common adjusting device (17) for all Kämmvorrichtungen for a simultaneous adjustment of the distance (E , E1) is provided between the tear-off rollers (8) and the lower tong plates (2) in all combing devices.

12. combing device according to any one of claims 1, 2,3,9 or 10 to 11, characterized in that a series of juxtaposed Kämmvorrichtungen are provided, wherein the adjusting devices (S1 - S4) for adjusting the position of the respective Abreisswalze (8) the combing devices (K1-K4) are controlled individually or in groups by a central control unit (ST).

13. combing device according to claim 12, characterized in that the individual adjusting devices (S1 - S4) are each equipped with an electric servomotor (M1 - M4), which by a central control unit (ST) individually or in groups (I, II) can be.