EP2665850B1 - Cover for a combing machine - Google Patents

Description

The invention relates to a comber having a plurality of juxtaposed combing heads, each having a nipper unit with a feed roller, a combing cylinder, a tear-off and a web-forming device, wherein the respective formed nonwoven via a device combined into a sliver and on one along the combing heads extending conveyor table is discharged, on which the slivers emitted by the combing heads adjacent to each other are fed to a subsequent drafting unit, and above the nipper units and the web-forming devices of the combing heads at least one, about a pivot axis pivotally mounted cover is provided.

GB-A-558948 shows a known combing machine.

In the combers known today, such. For example, in the E76 from Rieter company, pivotable covers are used, which on the one hand prevent manual intervention in the combing device during operation for safety reasons and on the other hand seal off the combing point against fluff from the ambient air. In the known combing machines (eg the E76), such a cover extends over four of eight existing combing points (combing heads), the free end of which extends to a subsequent conveyor table. That is, the fiber slivers, which are delivered to the conveyor head and which are transferred to a subsequent drafting unit, are exposed to the air flow of the ambient air and are unprotected against manual intervention. In the FIG. 1 of the EP-339 300 B1 is shown schematically such, previously described cover, which has been omitted here on the representation of a pivot axis.

From the published WO 2010/045748 a device is known, wherein above the nipper unit, a pivotable frame is arranged on which loading elements in the form of bellows cylinders for the pressure load of an upper tong plate and a tear-off roller are mounted. In addition, the feed roller with load device and the fixed comb are also attached to this frame. The high tilted frame gives good accessibility to the nipper unit and the combing elements, without the need for special tools. The design shown here is open at the top, which can form deposits on the Kämmstelle by fiber fly and other contaminants located in the ambient air. This makes it necessary to clean the combing point more often in order to maintain the desired combing quality.

The invention is based on the object to improve known embodiments and to propose a device by which on the one hand good accessibility to the individual Kämmstellen (combing heads) is ensured and on the other hand, the individual Kämmstellen and the subsequent belt transport on the subsequent conveyor table are protected against external influences.

This object is achieved by proposing that the pivotable cover consists of at least one cover, the free pivotable end of the conveyor table, viewed transversely to the longitudinal direction of the conveyor table, surmounted and covered. These are to be understood as embodiments in which an individually pivotable cover hood can be provided for each combing head. Likewise covered by this are embodiments in which one (of several) pivotable covering hood can extend over two or more combing heads.

Thus, the combing of the individual combing heads including the subsequent tape transport against the environment are completely sealed off. This ensures the cleanliness of the area above the conveyor table and the sliver-forming devices. Also, all rotating in this area elements are protected by the claimed formation of the cover from unwanted hand intrusion by people, which at the same time brings an increase in security with it. If the conveyor table (eg in the form of a conveyor belt) is provided with a drive, this too is protected against undesired interference by persons.

Furthermore, it is proposed that at least one frame (2) mounted on the machine frame (MK) so as to be pivotable about a pivot axis (30) is provided, which loading devices (BZ) for the nipper unit (4) at least one Has Kämmkopfes (K1-K8) and above the pivotable frame at least one cover (A1-A8) is provided, which partially rests on the frame (2).

This proposed combination, on the one hand, enables complete isolation of the combing heads, including the subsequent conveyor table, and, on the other hand, ensures good accessibility to the combing units. Ie. by the overlying cover on frame the respective cover is raised with the pivoting of the frame and ensures free access to the combing units. However, it is also possible to transfer the cover independently of the frame in an upper position in order to obtain a limited access to the combing units. A pivotable frame can also extend over several combing heads and be provided with a plurality of cover hoods according to the assigned number of combing heads.

Due to the independent possibility of pivoting the cover on the frame minor maintenance operations can be performed without the clamping points of the fiber material are released. This is advantageous when the pivotable frame extends over more than one combing head. Ie. It can be individually opened that cover, under which appropriate maintenance is necessary. Thus, such maintenance operations can be performed quickly and easily without disturbing the combing process. Of course, appropriately arranged sensors are provided which trigger a parking of the corresponding combing head or the whole machine as soon as one of the covers is raised.

It is particularly advantageous for the operation of the individual combing point if, as is further proposed, each combing head has an individual frame which is mounted pivotably on the machine frame and to which a pivotably mounted cover hood is assigned.

Due to the individual assignment of a pivotable frame with a cover for each individual combing head, only that combing head can be selectively opened at which maintenance or inspection is necessary. The pivotable frame with the respective cover of adjacent combing heads can do so be arranged and designed so that forms an approximately closed cover surface above the conveyor table. Thus, the tape transport on the conveyor table is optimally protected against external influences until shortly before delivery to the following drafting unit.

Furthermore, it is proposed that the free end of the frame projects beyond the conveyor table, viewed transversely to the longitudinal direction of the conveyor table.

Advantageously, the free end of the frame shoots with the lateral boundary of the conveyor table facing away from the combing heads. This gives a closed channel above the conveyor table, whereby the cover can also be supported on the frame above the conveyor table.

It is advantageous if the frame and the cover are pivotally mounted about a common, fixed to the machine frame axis. This results in a compact design, with additional pivot points omitted.

Advantageously, loading devices for the upper tong plate, for the feeding means and for the tear-off element can be provided on the pivotable frame. In the feed means may be a feed roller, the z. B. cooperates with a lower tong plate of the nipper unit.

With this device, it is possible to relieve the elements described without additional special tools, at the same time a simple and quick access to the combing elements is ensured.

Furthermore, it is proposed that the pivotable frame has a locking device at its free end. About this locking device, the frame is held in its working position. It is Z. B. conceivable that elements of the locking device can take a locking position with means which are attached to extensions of the side shields (part of the machine frame) of the respective combing head.

In order to keep the cover securely in position during operation, it is proposed that means be provided by means of which the covering hood can assume a locking position with the frame.

For secure fixation of the frame in its highly pivoted out-of-operation position, it is proposed to provide retaining elements.

Likewise, retaining elements may be provided to hold the cover in a highly pivoted out of operation position.

Advantageously, the cover at least partially made of a transparent material. Thus, the visual monitoring of the individual Kämmstellen done by the operator, without a cover must be removed, which would have the stopping of the machine. For example, the cover can be provided with a window.

Further advantages of the invention will be shown and described in more detail with reference to subsequent embodiments.

Fig.1

eine schematische Draufsicht auf eine Kämmmaschine

Fig.1a

eine schematische Teilansicht einer Draufsicht auf eine Kämmmaschine

Fig.2

eine schematische Seitenansicht eines Kämmkopfes der Kämmmaschine nach Fig.1

Fig.2a

eine weitere Ansicht nach Fig.2 mit hoch geschwenkter Abdeckhaube

Fig.3

eine schematische Seitenansicht eines Kämmkopfes der Kämmmaschine nach Fig.1 mit einer weiteren Ausführungsform

Fig.4

eine Teilansicht X der Kämmmaschine nach Fig.2

Fig.5

eine schematische Darstellung einer verkürzten Prozessstufe

Show it:

Fig.1

a schematic plan view of a combing machine

1a

a schematic partial view of a plan view of a combing machine

Fig.2

a schematic side view of a combing head of the comber after Fig.1

2a

another view Fig.2 with high tilted cover

Figure 3

a schematic side view of a combing head of the comber after Fig.1 with a further embodiment

Figure 4

a partial view X of the comber after Fig.2

Figure 5

a schematic representation of a shortened process stage

FIG. 1 shows a combing machine 1, which has eight Kämmköpfe K1 to K8. It can also be provided a far larger number of combing heads than shown in the example. At each of the combing heads K1-K8 is in each case a lap roll L (short: winding) submitted for combing. To unwind the reel L these are not shown on driven winding rollers. The unwound from the reels L cotton web is fed to the combing a nipper unit 4, which in conjunction with FIG. 2 will be explained in more detail.

Instead of the winding L and the individual Kämmköpfen K1-K8 can be presented, from which individual slivers are fed to the subsequent nipper unit for combing out. Such a can template is for example in the schematic representation FIG. 5 shown. This is a shortened process stage in which the use of autonomous routes was omitted. In this case, the formed on a carding machine KA sliver a drafting unit S1 is supplied to the z. B. is mounted above a tape storage of the card. From the drafting unit, the stretched fiber sliver is placed in a loop shape in a can B1 via a schematically illustrated funnel wheel. As shown schematically, the fibers are deposited with Schlepphkkchen in the pot.

The cans B1 filled at the carding machine KA are then presented directly to a subsequent combing machine 1, at which the slivers are pulled off with a tick, which is advantageous for the combing process, in which they are largely dissolved. As will be described below, the slivers F formed on the individual combing heads K1-K8 of the combing machine 1 are fed to a drafting unit S, the drawn slivers F being combined to form a sliver F1. The sliver F1 is placed in a loop shape in a can B2 via a funnel wheel shown schematically.

In a first variant A, the cans B2 filled at the comber 1 can be transferred to a subsequent jet spinning machine DS. There, the slivers are stretched in a drafting and fed to a spinneret. The yarn formed on the spinneret is then wound onto a spool U.

In a second variant B, the cans filled at the comber 1 can be presented as a template on a rotor spinning machine OE. The yarn formed in the spinning box of the rotor spinning machine is then wound onto a reel U as well. To increase the quality z. B. the drafting unit S on the comber 1 be equipped with a regulator.

FIG. 2 shows a schematic side view z. B. the Kämmkopfes K2 after FIG. 1 , Here, a lower tong plate 5 is partially shown, which z. B. is fixedly mounted in the machine frame. About a pivot axis 8 is an upper tong plate 6 pivotally mounted to the lower tong plate 5 via pivot arms 7. Above the respective nipper unit 4 of the individual combing heads K1-K8 a pivotable cover A1 is attached to A8. For visual monitoring of the individual combing points, the covers A1-A8 can each be provided with a window W.

The drive of the combing machine, or of the individual combing heads K1-K8, takes place from a drive unit AT, which is arranged at one end of the combing machine 1. The fiber sliver F formed at the individual combing heads K1-K8 is delivered to a conveyor table FT and transferred to a following drafting unit S. The slivers F are guided side by side on the conveyor table FT. If a larger number of combing heads is used, above the in FIG. 2 shown first layer of slivers F also be a second layer of slivers F be present, which rests offset above the first layer.

The fiber slivers F fed to the drafting unit S are stretched over roll pairs WP shown schematically, the fiber web discharged from the drafting unit S being combined to form a sliver F1. The sliver F1 is then transported via appropriate means of transport to a sliver tray BA, in which it is placed in a loop-shaped manner in a can K via a funnel wheel TR.

How out FIG. 1 can be seen, the distance a between adjacent covers A1-A8 is kept low, the covers also project beyond the conveyor table FT. Thus, a substantially closed cover of the conveyor table FT and the fiber slivers F transported thereon is obtained over the entire area of the combing heads K1-K8 arranged next to one another. Only in the transition region between the Kämmkopf K1 and the drafting unit S no cover for the slivers F is provided.

How out FIG. 2 can be seen, below the nipper unit 4, a circular comb RK via a shaft 10 rotatably mounted in the machine frame. The circular ridge RK is provided with a combing segment 11 and a tear-off segment 12. In the in FIG. 2 shown position of the tearing takes place, wherein the tear-off segment 12 forms a clamping line KP together with an attached tear-off roller 14. In this case, the fibers of the combed fiber tuft FB captured by the nip line KP are withdrawn and deposited on the sieve drum under the action of a negative pressure applied to a sieve drum ST. Schematically this is shown by a vacuum source 16, which is in communication with the interior of the screen drum ST. The end of the fiber bundle taken off from the screen drum ST is covered with the end of the nonwoven fabric V already on the screen drum and soldered to it. In order to consolidate this solder joint, a pressure roller 18 of the screen drum ST is assigned. The nonwoven fabric V thus formed is brought together by means not shown guide means to a sliver F and fed under the action of a take-off roll 20 a guide tube 21. About the guide tube 21, which can be made adjustable in the horizontal direction, the single sliver F is placed on the surface of the conveyor table FT.

In the tearing operation shown, the nipper unit 4 is opened, with no nip between the lower nipper plate 5 and the upper nipper plate 6 is present. Within the nipper unit 5, a spring-loaded feed roller 22 is rotatably arranged. The rotatable shaft 23 of the feed roller 22 is driven intermittently by a drive not shown in detail. In addition, the axis 23 is guided in guides 24 of holders 25. Within the guides 24 each have a spring element 26 is arranged, via which the feed roller 22 in the direction of the lower tong plate 5 exerts a compressive force. In each case in the region of the ends of the axis 23, such a holder 25 is attached, which is fastened via schematically illustrated screws 28 in each case to one of the carriers 2 a, 2 b of a frame 2. As schematically from the partial view X to FIG. 2 in the FIG. 4 it can be seen, the carrier 2a, 2b are interconnected via cross member 9. The frame 2 is pivotally mounted about an axis 30 in the machine frame and projects beyond the conveyor table FT.

A pressure element in the form of a bellows cylinder BZ, which exerts a pressure force on the upper tong plate 6 in the region of the tong lip for generating a clamping force with the forceps closed, is attached to each of the carriers 2a, 2b of the frame 2. The bellows cylinder BZ are in communication with a pressure source, not shown.

In addition, a fixed comb FK is attached to the frame 2, or on the carriers 2a, 2b. In the embodiment shown, the fixed comb FK is rigidly connected to the frame 2. However, it would also be possible to fix the fixed comb FK pivotally mounted on the frame 2, as z. In the published WO 2010/045748 A1 has been shown.

Furthermore, guides 32 are mounted on the frame 2, or on the carriers 2a, 2b, in which holder 33 are mounted displaceably. The holders 33 form the receptacle for an axis 35 of the rotatably mounted tear-off roller 14. Above the guides 32, a bellows cylinder BZ is arranged, which is attached via the holder 36 on the respective carrier 2a, 2b. About one, attached to the holders 33 plate 37 of the bellows cylinder BZ exerts a compressive force on the respective holder 33 and thus on the tear-off roller 14. The ends of the guides 32 together with the plate 37 an end stop for the displacement of the tear-off roller 14 in the direction of the circular comb shaft 10. This ensures that there is no collision between the tear-off roller 14 and the combing of the combing segment 11, if this in Area of the tear roller 14 is located. Also, the bellows cylinder BZ shown here, one of which is attached to the carriers 2a, 2b, is in communication with a pressure source, not shown.

In the front region of the carrier 2 a, 2 b of the frame 2, a transversely extending plate 40 is fixed, which laterally projects beyond the two supports 2 a, 2 b, in particular in FIG Fig. 2 ) is shown schematically. The lower end of the plate 40 (as part of the frame 2) projects beyond the lateral boundary B of the conveyor table FT, whereby the conveyor region of the slivers is sealed off to the outside and protected. Via webs 41, a rod 42 is attached to the plate 40. About the rod 42, an operator can pivot the frame 2 in an upper position, as they are z. In FIG. 2 is shown in dashed lines. Approximately in the middle of the plate 40, a bolt 44 is provided below the rod 42, which projects through an opening 45 of the plate 40. About a pin 46 and a washer 47, the bolt 44 is secured against falling out of the plate 40. The end of the bolt 44 is supported on a transverse web 50, at the ends of each bar 51 is fixed, which is also schematically in FIG. 4 will be shown. The latches 51, which are each attached pivotably about an axis 53 to the plate 40, each have a cam N1 and N2. On the opposite side of the axis 53, on which the bolt 44 is supported on the transverse web 50 of the bolt 51, the latch 51 is acted upon by a spring 55, which is supported on the plate 40. In the in FIG. 2 shown position, the cam N1 of the bolt 51 assumes a locking position with a bolt 56 which is fixed to a side plate 58 of the machine frame. Between each of the combing heads K1-K8, such a side plate 58 is arranged, as shown schematically in FIG FIG. 4 can be seen. These side shields serve z. B. as bearing elements for the guided along the machine drive shafts, such. B. for the circular comb.

The cam N1 has on the side of the bolt 56, on which it bears against this, a corresponding shape in order to ensure a secure locking position.

Above the frame 2, or above the carrier 2a, 2b, a cover A2 is provided, which rests in the division of labor on the carriers 2a, 2b. In this case, the cover or the cover A2 is provided in the front region with a fold, which is guided to the plate 40. This gives a total closed hood-shaped cover above the Kämmstellen the Kämmköpfe K1-K8 including extending along the combing conveyor table FT. In the rear area, the cover A2 is connected to webs 60, 61, which are pivotally mounted on the axis 30. In the front region, the cover A2 is provided with an approximately centrally arranged recess AN. About this recess AN, the operator can intervene with her hand to transfer the cover A2 (A1-A8) in an upper, highly pivoted position, as z. In FIG. 2a is shown in dashed lines. D. h., The cover A2 can be pivoted independently of the frame 2 in an upper position to z. B. carry out cleaning work in the area of the combing point to be able to, without the elements in contact with the fiber material are pivoted to an inoperative position. In order to lock in the working position, the cover A2 with the frame 2, elastic brackets 63 are attached to the cover, which partially enclose a bolt 65 in the pivoted-in position, which is attached to the respective carrier 2a, 2b. As in particular from FIG. 2a can be seen, in the region of the axis 30 to the webs 60, 61 each have a resilient clamp 64 is fixed, which in the highly pivoted position ( Fig. 3 ) partially engages a pin 66 fixed to the machine frame MR. This locking is sufficient to hold the cover A2 in the dashed upper position. However, it can be solved by hand again without much effort. It is of course still a variety of other locking devices conceivable.

In the in FIG. 2 dashed line position of the frame 2 including the cover A2 is pivoted into an upper position. In order to enable this pivoting, starting from the lower position drawn in solid lines, a pressure (see arrow direction) is exerted on the bolt 44. By appropriate arrangement of the rod 42 and the bolt 44, this pressure z. B. be exercised with the thumb of one hand of the operator, while the other fingers engage around the rod 42. The pressure on the bolt 44 also shifts the cross bar 50 in the direction of the circular comb axis 10, as a result of which the bar 51 pivots about the axis 53 against the spring force of the spring 55. Thus, the cam N1 is pivoted out of the region of the bolt 56 until the pivoting of the frame 2 about the axis 30 is released. After release by the latch 51, the frame 2 including the cover A2 is pivoted by the operator via the rod 42 in the dashed line position upwards. During this pivoting process, the feed roller 22 and the tear-off roller 14 and also the fixed comb FK are lifted off the fiber material. At the same time, the bellows cylinder BZ is lifted above the upper tong plate. In this pivoting operation of the frame 2 in an upper position of the (or the) bar 51 passes into the region of a mounted on the machine frame bolt 68, which is supported by a spring 69 on the machine frame MR. In this case, the bolt is pivotable on a lever 70th attached to the machine frame. During the pivoting movement of the bolt 51 runs with its cam N2 on the pin 68 with its inclined surface and generates a compressive force on the pin 68, whereby this dodge against the spring force of the spring 69. As soon as the cam N2 has passed the bolt 68, the bolt 68 is moved on the base of the bolt 51 via the spring 69, as shown in the illustration. Ie. the cam N2 corresponding trained surface comes to rest against the bolt 68, whereby a locking position of the frame 2 with the cover A2 is achieved in the swung-up position. Also, this locking position can be solved again without great effort again by hand against the spring force of the spring 69. The locking device shown is shown purely schematically and can be located at any point in the range of the pivoting range of the frame 2. It would also be possible to use lifting cylinders for the swiveling process which have an end stop.

How out FIG. 4 In each case, such a latch 51 is attached to the lateral ends of the frame 2 or to the plate 40 connected to the frame 2.

By the attachment of additional windows, or transparent sections W within the covers A1-A8, a visual monitoring of the individual Kämmstellen is possible without areas of the machine must be covered. The pivotable covers A1-A8 as well as the pivotable frame 2 sensors are assigned, which monitor their pivoting movement. Different sensors can be used. In other words, as soon as one of the covers A1-A8, or one of the frames 2, is pivoted out of its operating position, the correspondingly arranged sensors trigger a stop of the respective combing head or the entire combing machine. This depends on the respective drive concept. D. h., If the individual combing heads have an independent single drive, it is possible to put even single combing heads out of operation, as soon as the covers or their frame are pivoted from their operating position. One possible embodiment of the mounting of sensors is in the Fig.1 a and Fig.2 and will be described in more detail below.

In the context of the invention, an embodiment is possible with a jointly pivotable frame 2 via a plurality of combing heads, z. B. extends over at least two combing heads, wherein for each combing an individually pivotable cover A1 to A8 is provided. Such an embodiment is schematically from the partial view of FIG. 1a refer to. In this case, the pivotable about an axis 30 frame 2 extends over two adjacent Kämmköpfe K1, K2, or K3, K4, etc. Here are each pivotable frame 2 two, also about the pivot axis 30 pivotable covers A1, A2 of the combing K1, K2 or swiveling covers A3, A4 of the combing heads K3, K4 provided. Ie. when swinging the frame 2, which extends over the Kämmköpfe K1 and K2, at the same time, the two covers A1, A2 are pivoted and raised. Individually, however, each of the two covers A1, A2 can be pivoted about the pivot axis 30 upwards when the frame 2 of the combing heads K1, K2 is in its locked working position. The same applies to the other covers A3 to A8.

To shut down the machine, or the individual combing heads, as soon as one of the covers A1 to A8 is pivoted with or without the frame 2 in a shutdown position, z. B. a light barrier with transmitter 82 and receiver 83 is provided (see 1a ) mounted on the machine frame MR. In this case, the transmitter 82 is connected via the line 81 and the receiver 83 via the line 84 to a control unit P of the combing machine. At the pivotable covers A1 to A8 tabs 80 are attached (see Fig.2 ) interrupting the light beam LS emitted from the transmitter 82. Ie. in the in Fig.2 Dashed top position illustrated the tab 80 interrupts the light beam LS, whereby the receiver 83 receives no more light pulse, which he reports via the line 84 to the control unit P. About this then the stoppage of the comber is triggered. Once the light beam LS is not interrupted, the comber can be restarted.

With the proposed device smaller maintenance operations can be made only by the pivoting of the individually mounted covers A1 to A8 at the individual combing heads without that of several combing heads extending pivoting frame 2 must be removed from its operating position.

From the further embodiment of the FIG. 3 shows an embodiment, wherein the cover A1 extends to above the area of the conveyor table FT and the, on the conveyor table FT transported slivers F, from the environment of the comber forecloses and protects. The hitherto known embodiment, wherein the cover extends only to a fleece funnel 74, is shown in dashed form. The combing head of the combing machine, which is shown schematically, is a design that is common today, wherein the fiber material WT, presented by a nipper unit 4, is combed out of a round ridge RK in the form of a lap web and subsequently drawn off by a pair of ripper rollers 15. The fiber material in the form of a nonwoven fabric V is transferred to a subsequent take-off roller pair 72 via the following roller pair 17. The nonwoven fabric discharged from the take-off roller pair 72 is combined in the following fleece strainer 74 into a sliver and delivered via the calender roller pair 75 onto the conveyor table FT on which the slivers are transferred to a following drafting unit. The cover A1 may also extend over a plurality of combing heads. About a schematically indicated handle 77, the cover A1 can be pivoted into an upper, dot-dashed position. In the embodiment shown no additional pivotable frame is provided below the cover.

With the proposed device to obtain a compact and encapsulated construction, in particular the, equipped with a low adhesive force fiber bands are protected on the transport to the following drafting unit from external influences. At the same time allows the additional attachment of a hinged cover above a pivotal frame engagement with the respective Kämmstelle, without causing a disturbance of the fiber material.

Claims (12)

1. A combing machine (1) having several combing heads (K1-K8) arranged side-by-side, each having a nipper assembly (4) with a feed device (22), a combing cylinder (RK), a detaching element (14) and a fleece-forming device (ST) such that the fleece (V) which is formed at the individual combing heads is combined via a device to form a sliver (F) and is delivered to a conveyor table (FT) running along the combing heads (K1-K8), the slivers (F) delivered by the combing heads being supplied, lying side-by-side on the conveyor table, to a downstream drafting arrangement (S) and above the nipper assembly (4) and the fleece-forming devices (15, ST) of the combing heads (K1-K8), at least one cover (A1-A8) which is mounted to pivot about a pivot axle (30) is provided, characterized in that the pivotable cover consists of at least one covering hood (A1-A8) whose free pivotable end protrudes beyond and covers the conveyor table (FT) as seen across the longitudinal direction of the conveyor table.
2. The combing machine according to claim 1, characterized in that at least one frame (2) is provided, mounted on the machine frame (MK), so it can pivot about a pivot axle (30), said frame having loading devices (BZ) for the nipper assembly (4) which has at least one combing head (K1-K8) and at least one covering hood (A1-A8) is provided above the pivotable frame, resting partially on the frame (2).
3. The combing machine according to claim 2, characterized in that the free end of the frame (2) protrudes beyond the conveyor table (FT) across the longitudinal direction of the conveyor table.
4. The combing machine (1) according to claim 3, characterized in that the free end of the frame (2) ends with the lateral border (B) of the conveyor table (FT) facing away from the combing heads (K1-K8).
5. The combing machine according to any one of claims 2 to 4, characterized in that the frame (2) and the covering hood (A1-A8) are mounted to pivot about a shared axle (30) mounted on the machine frame (MR).
6. The combing machine according to any one of claims 2 to 5, characterized in that each combing head (A1-A8) has an individually pivotable frame (2) to which a pivotable covering hood (A1-A8) is assigned.
7. The combing machine (1) according to claim 2, characterized in that loading device (BZ, 26) for the upper nipper assembly plate (6), for the feed device (22) and the detaching element (14) are mounted on the frame.
8. The combing machine (1) according to any one of claims 2 to 6, characterized in that the pivotable frame (2) has a locking device (51) on its free end.
9. The combing machine (1) according to claim 8, characterized in that means (63, 65) by which the covering hood (A1-A8) together with the frame (2) may assume a locking position are provided.
10. The combing machine (1) according to any one of claims 8 to 9, characterized in that retaining elements (68, 69, 70) are provided on the machine frame (MR) to hold the frame (2) in a raised out of operation position.
11. The combing machine (1) according to any one of claims 9 to 10, characterized in that retaining element (64, 66) are provided to keep the covering hood (A1-A8) in a raised out of operation position.
12. The combing machine (1) according to any one of the preceding claims, characterized in that the covering hood (A1-A8) consists at least partially of a transparent material (W).

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