Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G31/00—Warning or safety devices, e.g. automatic fault detectors, stop motions
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G19/00—Combing machines
  • D01G19/06—Details
  • D01G19/24—Framework; Casings; Coverings

Definitions

• the invention relates to a combing machine with several 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 to a sliver summarized and on a along the combing heads extending conveyor table is discharged, on which the slivers emitted from the combing heads adjacent to a subsequent drafting unit are supplied, 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.
• FIG. 1 of EP-339 300 B1 schematically shows such a cover as described above, omitting the illustration of a pivot axis.
• 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 attached.
• the feed roller with load device and the fixed comb are also attached to this frame.
• the high tilted frame provides good accessibility to the fence.
• CONFIRMATION COPY genaggregat 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 protected against external influences become.
• 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.
• 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.
• 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 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.
• 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.
• pivotable frame with a cover for each individual combing head 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.
• the tape transport on the conveyor table is optimally protected against external influences until shortly before delivery to the following drafting unit.
• the free end of the frame projects beyond the conveyor table, viewed transversely to the longitudinal direction of the conveyor table.
• the free end of the frame shoots with the lateral boundary of the conveyor table facing away from the combing heads.
• loading devices for the upper tong plate, for the feeding means and for the tear-off element can be provided on the pivotable frame.
• the feed means may be a feed roller, the z. B. cooperates with a lower tong plate of the nipper unit.
• the pivotable frame has a locking device at its free end.
• the frame is held in its working position.
• 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.
• means be provided by means of which the covering hood can assume a locking position with the frame.
• retaining elements may be provided to hold the cover in a highly pivoted out of operation position.
• the cover at least partially made of a transparent material.
• the cover can be provided with a window.
• 1 shows a schematic plan view of a combing machine
• 1a is a schematic partial view of a plan view of a combing machine
• FIG.1 A schematic side view of a combing head of the combing machine according to Fig.1
• FIG. 2a shows a further view according to Fig.2 with high tilted cover
• FIG. 3 shows a schematic side view of a combing head of the combing machine according to FIG. 1 with a further embodiment
• FIG. 4 is a partial view X of the combing machine according to Fig.2
• FIG. 1 shows a comber 1, which has eight combing heads K1 to K8. It can also be provided a far larger number of combing heads than shown in the example.
• a lap roll L short: Wi disgusted
• 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 will be explained in more detail in connection with Figure 2.
• 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.
• 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.
• 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.
• 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.
• the drafting unit S on the comber 1 be equipped with a regulator.
• Figure 2 shows a schematic side view z. B. the Kämmkopfes K2 of Figure 1.
• a lower tong plate 5 is partially shown which z. B. is fixedly mounted in the machine frame.
• a pivot axis 8 is an upper tong plate 6 pivotally mounted to the lower tong plate 5 via pivot arms 7.
• a pivotable covering hood A1 to A8 is fastened.
• 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 subsequent drafting unit S.
• the slivers F are guided side by side on the conveyor table FT.
• a second layer of fiber ribbons F may also be present above the first layer of fiber ribbons F shown in FIG. 2, which rests offset above the first layer.
• the fiber slivers F fed to the drafting unit S are stretched over schematically illustrated pairs of rolls WP, whereby the nonwoven fabric discharged from the drafting unit S is 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.
• the distance a between adjacent covering hoods A1-A8 is kept low, with the covering hoods projecting beyond the conveying table FT.
• 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.
• a circular comb RK is rotatably mounted in the machine frame below the nipper unit 4 via a shaft 10.
• the circular ridge RK is provided with a combing segment 11 and a tear-off segment 12. In the position shown in FIG.
• the tear-off operation takes place, the tear-off segment 12, together with an attached tear-off roller 14, forming a clamping line KP.
• 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.
• 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.
• 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 to a guide tube 21 under the action of a take-off roll 20.
• a 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.
• the nipper unit 4 is opened, with no nip between the lower nipper plate 5 and the upper nipper plate 6 is present.
• a spring-loaded feed roller 22 is rotatably arranged within the nipper unit 5.
• the rotationally movable borrowing axis 23 of the feed roller 22 is driven intermittently by a drive not shown in detail.
• the axis 23 is guided in guides 24 of holders 25.
• a respective spring element 26 is arranged, via which the feed roller 22 exerts a pressure force in the direction of the lower tong plate 5.
• 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.
• the carriers 2 a, 2 b are connected to one another via cross members 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.
• a fixed comb FK is attached to the frame 2, or on the carriers 2a, 2b.
• the fixed comb FK is rigidly connected to the frame 2.
• 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.
• a bellows cylinder BZ is arranged, which is attached via the holder 36 on the respective carrier 2a, 2b.
• 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 form an end stop for the displacement of the tear-off roller 14 in the direction of the circular comb shaft 10.
• 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.
• a transversely extending plate 40 is fixed, which laterally projects beyond the two supports 2a, 2b, as shown schematically in particular in Figure 4 (view X of FIG. 2).
• the lower end of the plate 40 projects beyond the lateral boundary B of the conveying table FT, whereby the conveying area of the fiber slivers is sealed off to the outside and protected.
• a rod 42 is attached to the plate 40. An operator can use the rod 42 to move the frame 2 into an upper position. ken, as they B. is shown by dashed lines in Figure 2.
• 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 which a respective bolt 51 is fastened, which is also shown schematically in FIG.
• the latches 51 which are each attached pivotably about an axis 53 to the plate 40, each have a cam N1 and N2.
• the bolt 51 is acted upon by a spring 55, which is supported on the plate 40.
• 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.
• a cover A2 is provided, which rests in the working position on the carriers 2a, 2b.
• the cover or the cover A2 is provided in the front region with a fold, which is guided to the plate 40. This results in a total closed hood-shaped cover above the combing points of the combing heads K1-K8 including the conveying table FT running along the combing heads.
• the cover A2 is connected to webs 60, 61, which are pivotally mounted on the axis 30.
• 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. B. shown in dashed lines in Figure 2a. D. h., The cover A2 can be pivoted independently of the frame 2 in an upper position to z. Cleaning work in the area of the combing point. to be able to be pivoted without the elements in contact with the fiber material in an inoperative position.
• the frame 2 including the cover hood A2 is pivoted into an upper position.
• a pressure (see arrow direction) is exerted on 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.
• 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.
• the frame 2 including the cover A2 is pivoted by the operator via the rod 42 in the dashed line position upwards.
• the feed roller 22 and the tear-off roller 14 and also the fixed comb FK are lifted off the fiber material.
• the bellows cylinder BZ is lifted above the upper tong plate.
• the latch 51 reaches the area of a bolt 68 attached to the machine frame, which is supported on the machine frame MR by a spring 69.
• the bolt is pivotable on a lever 70th attached to the machine frame.
• 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.
• 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. As can be seen schematically from FIG. 4, such a latch 51 is respectively attached to the lateral ends of the frame 2 or to the plate 40 connected to the frame 2.
• 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. In other words, if the individual combing heads have an independent individual drive, it is possible to put even single combing heads out of operation as soon as their covering hoods or their frames are pivoted upwards out of their operating position. A possible embodiment of the mounting of sensors is shown in FIGS. 1a and 2 and will be described in more detail below.
• 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.
• the pivotable about an axis 30 frame 2 extends over two adjacent Kämmkexcellent K1, K2, or K3, K4, etc.
• each pivotable frame 2 each 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.
• 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.
• a light barrier with transmitter 82 and receiver 83 are provided (see Fig.1a), which are mounted on the machine frame MR.
• 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.
• tabs 80 are mounted (see Figure 2), which interrupt the light beam LS, which is emitted by the transmitter 82. Ie.
• 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.
• FIG. 3 shows an embodiment, wherein the cover A1 extends to above the region of the conveyor table FT and the, on the conveyor table FT transported fiber slivers F, from the environment of the comber forecloses and protects.
• the combing head of the combing machine shown schematically, is a design which is common today, wherein the fibrous 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 rip-off rolls 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 nonwoven 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 subsequent 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.
• 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.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Preliminary Treatment Of Fibers (AREA)

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Cited By (6)

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• 2011
  • 2011-01-20 CH CH1002011A patent/CH704372A2/de not_active Application Discontinuation
• 2012
  • 2012-01-09 EP EP12700444.8A patent/EP2665850B1/de not_active Not-in-force
  • 2012-01-09 WO PCT/CH2012/000004 patent/WO2012097461A1/de active Application Filing
  • 2012-01-09 CN CN201280005875.XA patent/CN103314145B/zh not_active Expired - Fee Related
  • 2012-01-09 JP JP2013549686A patent/JP6000279B2/ja not_active Expired - Fee Related

Patent Citations (3)

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