EP1774072B1 - Kämmmaschine. - Google Patents

Kämmmaschine. Download PDF

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Publication number
EP1774072B1
EP1774072B1 EP05758466A EP05758466A EP1774072B1 EP 1774072 B1 EP1774072 B1 EP 1774072B1 EP 05758466 A EP05758466 A EP 05758466A EP 05758466 A EP05758466 A EP 05758466A EP 1774072 B1 EP1774072 B1 EP 1774072B1
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EP
European Patent Office
Prior art keywords
combing machine
fiber
take
screen drum
combing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05758466A
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German (de)
English (en)
French (fr)
Other versions
EP1774072A1 (de
Inventor
Walter Slavik
Ueli Stutz
Daniel Sommer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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Publication of EP1774072A1 publication Critical patent/EP1774072A1/de
Application granted granted Critical
Publication of EP1774072B1 publication Critical patent/EP1774072B1/de
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Classifications

    • 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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently
    • 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
    • D01G19/28—Air draught or like pneumatic arrangements

Definitions

  • the invention relates to a combing machine with an aggregate for feeding a fiber mass to a combing device, wherein the combing combs the end of the fiber mass gradually presented and clamped by the unit, which is then fed to a take-off device which subtracts a fiber packet from the presented and combed end and delivers to a subsequent device for forming a nonwoven fabric.
  • the wadding web drawn off from a wadding roll is placed over a pair of pliers by means of a feed roll for combing out a round comb arranged below the pliers.
  • the reciprocating pliers are closed, whereby the cotton wool end protruding from the nip of the pliers (also called fiber tuft) is grasped and combed out by a comb segment of the round comb. Subsequently, the forceps is pivoted to a front position and opens it.
  • the free end of the tuft passes into the region of the end of a previously formed fiber fleece, which has been conveyed back by a Reversierterrorism of a Abreisswalzencru by a certain amount to set a new combed fiber package.
  • the direction of rotation of the tear-off rolls is again in the transport direction.
  • the combed tuft now lies like a tile with a predetermined coverage on the end of the fibrous web and passes through the rotational movement of the tear-off rollers in the nip of the tear-off rollers.
  • a fixed comb mounted on the pliers usually appears in the tuft.
  • the latter then has the task of retaining shell parts and nits and also short fibers during the tear-off process, which are located in particular in the region of the tuft which has not been grasped by the comb segment of the circular comb.
  • the fibers covered by the nip line which are not retained in the tongs, are drawn off in the form of a fiber packet and soldered to the end of the fiber web via the clamping action of the tear-off rollers.
  • This process is repeated with each comb play. That is the The direction of rotation of the tear-off rollers must be reversed before each new tear-off or piecing process (soldering process).
  • the transport of the nonwoven fabric must be interrupted in this device due to the discontinuous tearing process. This is done by lifting the lower soldering roller from the upper driven soldering roller, whereby the frictional engagement over the fiber fleece between these two rolls is interrupted. That is, the lower and lifted Lötwalze comes to a standstill, whereby the removal of the fiber fleece is interrupted. This process is performed during each comb play.
  • a disadvantage of this device is on the one hand the complex movement of the lower soldering roller and on the other hand, the intermittent acceleration of the fiber web for performing the soldering process and for removal.
  • this device is very susceptible to wear and the fiber fleece can be damaged qualitatively by the continuous accelerations.
  • DE-A1 197 13 225 proposed to drive the tearing and soldering rollers arranged in series in such a way so that the peripheral speeds of the rollers differ at least over a partial section during the comb play, wherein the nonwoven end is permanently clamped.
  • a guide means has been proposed here for the transfer of the fiber package delivered by the tear-off rollers, which is intended to support the piecing process.
  • the invention now has the task to improve the known solutions and to propose a device which allows a safe and desirable soldering even at high Kammspiellibrary.
  • the device consists of a circulating means which is provided on its periphery with openings for its air passage over its circumference and at least a portion of the interior of the means is connected to a vacuum source and a shuttering provided which forms a space sealed off from the environment between the drawing-off device and the periphery of the peripheral means, a portion of the partitioned space being formed by the periphery of the means and the drawing-off device.
  • the term "shielded from the environment” does not mean that the claimed space is completely "airtight" from the ambient air. That is, there may still be openings for the air inlet, which serve in particular to compensate for the extracted via the vacuum source air volume again.
  • Such openings can z. B. between the outer boundary of the casing and the trigger device may be provided. With a targeted attachment of such openings and the air flow can be accurately aligned and influenced with respect to the application of the delivered fiber package.
  • the foreclosure of the space to the ambient air is between 80% and 99%, whereby the tracking of air from the environment is ensured in the foreclosed room.
  • the height of the portion of the openings for the air inlet in the foreclosed space depends z. B. after the required negative pressure within the room during the soldering process.
  • a second means (Z, 78) is provided, via which, at time intervals, in synchronization with the delivery of the fiber packets (P), the free air passage, at least over a portion of the openings (35), between the environment the first means (T) and the negative pressure source (Q) is controllable.
  • controllable means the production or suppression of the free passage of air between the vacuum source and the ambient air of the first means via the openings.
  • the delivery fiber packet can be held correspondingly and subsequently placed on the end of the already formed fiber fleece with a desired covering.
  • the second means proposed within the first means is connected to a drive and provided with at least one opening on its periphery, which extends approximately over the width of the withdrawn fiber packet and via which a connection between the openings of the first means and the vacuum source can be produced ,
  • the second means serves as a control element for establishing the connection between the openings of the first means with the vacuum source.
  • the drive of the second means are in drive connection with the drive of the extraction device.
  • the first means consists of a rotatably mounted screening drum, within which the second means is arranged as a rotatably mounted cylinder.
  • the speed of the second means is a simple or a multiple of the Kammspieliere the combing machine.
  • the rotational speed of the second means is a fraction of the comb play number of the combing machine. It must be guaranteed only the exact application of the newly delivered fiber package.
  • the speed of the first or second means variable (controllable) designed.
  • the control of the speed of the second means can influence the soldering (soldering distance).
  • the second means consists of at least one stationarily mounted channel which extends approximately over the width of the withdrawn fiber packet and is provided with a protruding in the direction of the air passages of the first means opening, wherein the connection between the channel and the vacuum source via a provided controllable element is switchable.
  • the shuttering is made of a transparent material so that the operator is granted an insight into this area without having to disassemble the shuttering. This can also be advantageous with regard to possible cleaning work or for the timely detection of sources of interference. So that in the area of the casing no fluff or other soiling can settle, it is proposed that at least parts of the casing are made of an antistatic material.
  • At least one adjustable element be provided in the region of the casing, which is suitable for controlling at least one opening for an air passage between the sealed space and the ambient air of the casing.
  • the element may consist of a flap which can be pivoted about a pivot axis and which extends transversely to the transport direction of the nonwoven fabric substantially over the length of the take-off device.
  • the pivot axis of the flap is arranged in the region above the take-off device and the free end of the flap points in the direction of the take-off device.
  • the flap In order to ensure a safe storage of the fiber package on the screen drum, it is proposed to attach the flap so that the free end of the flap in the open position with the first means forms a nip. In order to support the desired air flow, it is proposed that at least one guide element for the air guide is provided within the casing and in the region of the periphery of the first means, which extends at least over the width of the fiber packet.
  • the distance (viewed transversely to the longitudinal direction of the guide element) between the guide element and the casing is greater than the distance between the guide element and the periphery of the first means. This ensures that the air circulation takes place in particular above the guide element between the guide element and the shuttering. This has an influence on the timing of the front end of the fiber pack on the end of the fiber web as will be described in more detail later in the embodiments.
  • the shuttering element - seen in the transport direction of the nonwoven fabric - has a boundary in its front end area which reduces the distance between the casing and the periphery of the first means , As a result, the air flow which is generated within the casing can be interrupted at this point.
  • the casing is provided with a cover which at least partially closes the space between the extraction device and the periphery of the first means.
  • this cover can itself be an integral part of the shuttering.
  • the first means be provided with a removal device for removing the nonwoven fabric formed on the means.
  • the removal device is arranged following the boundary of the casing.
  • the removal device can be a pair of rollers.
  • for removing the nonwoven fabric from the first means may also be provided a take-off roll, which cooperates directly with this first means.
  • the removal device can form a sliver Be device.
  • the roller pair may be followed by a known fleece funnel for band formation.
  • the radial distance between the first means and the second means is to be kept relatively low in order to avoid unwanted air flows. It is proposed that the radial distance between the screen drum and the cylinder is between 0.2 and 2 mm.
  • Another embodiment of the invention is the attachment of the second means outside the first means. It is proposed that the second means consists of a movable cover which extends at a distance over a partial region of the circumference of the first means. With this movable cover, the openings of the first means can be sealed from the outside with respect to a free passage of air with respect to the applied vacuum source.
  • the movement of the cover is preferably carried out via a control device, so that the air currents for the attachment process of the new fiber packet can be controlled exactly.
  • a control device it is advantageous to provide a casing in order to obtain controlled air flows for the piecing process (soldering process).
  • the casing can also be at least partially transparent and / or antistatic.
  • Fig. 1 shows an embodiment of the prior art.
  • the supplied from a nipper unit 1 cotton wool 2 via a feed cylinder 3 a take-off roller pair 5 (also called Abreisswalzencru) supplied.
  • the outstanding from the open forceps 1 tuft 7 thereby passes to the rear end 8 of a Kammzugvlieses, or nonwoven fabric 10, whereby it due to the Forward movement of the take-off rollers 5 passes into the nip of the take-off rolls.
  • the fibers which are not held by the retention force of the wadding or by the forceps, torn out of the composite of the wadding. In this tearing off the tuft is additionally pulled through the needles of a Fixkammes 9.
  • the Fixkamm 9 causes the combing out of the rear part of the withdrawn tuft as well as the retention of nits, impurities and the like. Due to the differences in speed between the wadding web 2 and the withdrawal speed of the tear-off rolls, the drawn-off tuft is warped to a certain length. Following the Abreisswalzenpas a pair of guide rollers 6 is arranged. In this tearing off, there is an overlap or doubling of the front end of the demolished, or withdrawn fiber packet with the rear end 8 of the fiber web 10.
  • the pliers returns to a rear position in which it is closed and presents the tuft protruding from the tuft 7 a comb segment 12 of a circular comb 13 for combing out.
  • the take-off rollers 5 and the guide rollers 6 perform a reversing, whereby the rear end 8 of the fiber web 10 is conveyed back by a certain amount. This is necessary to achieve a necessary coverage for the soldering process.
  • Fig. 2 an embodiment of the invention is shown, wherein the take-off rollers 5 no reversing must perform more. That is, the fiber package P withdrawn from the take-off rolls is delivered discontinuously to a following screening drum T under the influence of an air flow L and attached to the end E of the already formed nonwoven fabric V, as will be described in more detail below.
  • sectional view AA according to Fig.2 is in the Figure 3 It can be seen that the screen drum T is rotatably mounted on a flange 21 via a bearing 20.
  • the flange 21 is fixedly connected to a cylinder Z.
  • About the flange 21 of the cylinder Z is rotatably mounted on a shaft 24.
  • the shaft 24 is via a bearing 22nd stored flying in the machine frame MG. Of course, the shaft 24 is also secured in its axial position (not shown).
  • a pulley 26 is connected to the screening drum and at the same time forms the lateral conclusion against the ambient air. Via a schematically illustrated belt 27, which rests on the pulley 26, this is driven by a drive not shown in detail, which is in drive connection with the transmission G.
  • the drive of the transmission via a motor M, which is controlled by a control unit ST.
  • a drive wheel 30 rotatably mounted on the shaft 24. This drive wheel 30, which may be a gear, a sprocket or a pulley, for example, is connected to the gear G via a drive connection 31 shown schematically in connection.
  • the bearing 20 opposite end face is fixed to the shaft 24, a channel 33 on the machine frame MG.
  • the tubular channel 33 protrudes with its end face 32 in the inside diameter of the cylinder Z and thus seals off the interior IR against the ambient air.
  • sealing elements 38 may be provided for further sealing. It is also possible to design these elements as bearing means in order to additionally support the screen drum T on this side on the channel 33.
  • In the channel 33 opens a channel 34 which communicates with a vacuum source Q in connection.
  • the end face 32 of the channel 33, which projects into the screen drum T, is provided with an opening 36, via which, as indicated schematically by arrows, the air flow from the interior IR of the screen drum to the vacuum source Q can take place.
  • the screen drum T is, as shown schematically, provided with a plurality of openings 35 which are distributed over its entire circumference.
  • a screen drum made of metal, plastic or other solid materials which is provided with openings on its circumference, it would also be possible to use a substance or a to use other fabric, which has a certain air permeability. This fabric would have to be mounted on a scaffold accordingly.
  • a cover attached A1 which, as in particular from the Fig.2 can be seen extends over a portion of the peripheral region on the inside of the screen drum T.
  • the cover A1 is arranged on the inside of the rotating cylinder Z at a small distance.
  • the Figure 3 is provided between the screen drum T and the cylinder Z a small radial distance a, which may be between 0.2 and 2 mm.
  • a slight negative pressure is generated as soon as the vacuum source Q is effectively switched on.
  • This low negative pressure is, as will be explained later, for holding the already formed on the screen drum nonwoven fabric V, at least in the area in which no cover member A1 is mounted.
  • a connection between the interior IR, which is connected to the vacuum source Q, with the radial clearance between the drum T and the cylinder Z at all times, a plurality of small openings 53 may be provided on the circumference of the cylinder Z.
  • openings 35 The size and number of these openings 35 is chosen so that the piecing, or soldering on the screen drum T is not affected thereby. In the embodiment shown, only three such openings are shown in a line. Several such openings 53 may be arranged distributed on the circumference of the cylinder Z.
  • FIG. 3 Also in the Figure 3 is a portion of an opening S1 to remove, which is mounted in the cylinder Z and the vacuum source Q connects to a portion of the openings 35 provided with the screen drum T.
  • the cover member A1 is mounted in the region of take-off rollers 40, so that the non-woven fabric V easily over the driven rollers 40 of the drum T can be removed.
  • This fiber fleece V is fed by the rolls to a following fleece funnel 41, in which the fleece of width B (FIG. Figure 3 ) is combined into a sliver FB.
  • Such devices of fleece summary are already known in many variations in combers, cards or even on routes, which will not be discussed here.
  • the fiber sliver FB formed at the fleece funnel 41 can be deposited in a can 44 via a funnel wheel 43.
  • a stationary cover 46 is mounted above the screen drum T.
  • the cover has, as in Figure 3 shown schematically, lateral walls 47 which extend on both end sides of the cover 46 into the region of the circumference U of the screen drum T. This results in connection with the peripheral surface U of the screen drum T and the take-off rollers 5, a space sealed off from the environment AR. This is to ensure that no uncontrolled air currents arise.
  • the air flow is interrupted in the region of the take-off rollers 40, a web 49 is attached to the end of the cover 46, which reduces the distance between the cover 46 and the screen drum T to a necessary minimum distance, so that the nonwoven fabric V can still pass this point.
  • a cover 50 is provided between the lower discharge roller 5 and the screen drum T, which covers this free space for the most part.
  • a rod 52 is mounted, which has a distance b to the screen drum T, which is smaller than the distance c between the rod 52 and the cover.
  • the rod 52 is fixed to the side walls 47 of the cover 46.
  • the rod can also be adjustably mounted in its position. Due to the greater distance c of the rod to the cover, the air flow L, which arises by applying a negative pressure, for example via the opening S1, extend above the rod 52. This effect is needed to carry out the piecing process described below.
  • both the screen drum T, as well as the cylinder Z a same direction of rotation counterclockwise.
  • the peripheral speed of the cylinder Z coincides with the peripheral speed of the take-off rollers 5.
  • D. h. the rotational speed of the cylinder Z must run synchronously with the comb play in order to carry out the piecing process or soldering process synchronously with the delivery of the fiber package.
  • the speed of the screen drum T is much slower than that of the cylinder Z and is aligned according to the piecing process. With the change in the speed of the screen drum, the soldering distance, or the overlap of the end E with the beginning of the fiber package P P can be changed.
  • the Fig.2 the front end VE of the fiber package P is already in the area of the screen drum T. About the opening S1 of the rotating. Cylinder Z is about the. Openings 35 of the screen drum T, the space between the cover 46 and the screen drum T connected to the vacuum source Q, which can be controlled via a control unit ST.
  • the resulting air flow L passes through the geometrical installation conditions already described above the rod 52.
  • the positioning of the opening S1 is exactly matched to the delivery process of the fiber package P through the take-off rollers 5 to produce the described air flow.
  • the front end VE of the fiber pack P is aligned in a direction above the bar 52, thereby ensuring that this front end VE does not collide with the screen drum T and is compressed. Much more lifts this end from the peripheral surface U of the screen drum.
  • the end of the fiber package P is released from the take-off rollers 5.
  • the opening S2 is now in the region of the end E of the nonwoven fabric V and caused by the connection with the vacuum source Q and the openings 35 that first hangs up the released end of the fiber pack on the screen drum.
  • the fiber fleece V is transferred by the rotational movement of the screen drum T in the removal area AB of the rollers 40, in which also the stationary attached cover member A1 is arranged. This ensures that this area is sealed off from the vacuum source Q, whereby the fiber fleece can be easily lifted from the peripheral surface U, in order to transfer this into the nip between the take-off rolls 40.
  • the nonwoven fabric V is discharged into a fleece funnel 41, which are also driven downstream take-off rollers 42.
  • the nonwoven fabric V is combined in a known manner into a fiber sliver FB, which is drawn off from the take-off rolls 42 and placed in a loop 44 in a can 44 via a funnel wheel 43 shown schematically.
  • the fiber sliver FB thus deposited can subsequently be transported to the can 44 for further processing, for example, to a flyer or an open-end machine.
  • Fig. 2a and Fig. 2b cover up to the attachment of a hinged flap KL in the region of the casing 46 substantially with the embodiment of the Fig. 2 , respectively.
  • Fig. 3 Therefore, in the following description essentially on the importance of the additional flap KL, while the other functions and procedures from the description of Fig. 2 can be removed.
  • a flap KL which is pivotally mounted about a pivot axis SA.
  • the pivot axis SA can be mounted in the machine frame or directly on the cover.
  • The, flap KL is in the enlarged partial view of Fig. 2c shown in more detail.
  • a lever 85 is rotatably connected on the pivot axis SA, which z. B. is laterally pivotally mounted in the region of the hood 46 or on the machine frame.
  • a lever 85 is rotatably connected.
  • the piston rod of a cylinder 88 is articulated, which is mounted on the hood 46 or on the machine frame of the combing machine.
  • the cylinder 88 is acted upon via the line 89 by a valve 86 with compressed air, which is generated by a compressed air source 90.
  • the valve 86 is controlled via the line 87 by the control unit ST, via which the control takes place synchronously with the movement of the take-off rolls, or in particular synchronously with the position of the openings S1, S2 of the cylinder Z.
  • the flap KL is in an upper closed position, in which the free end of the flap approximately tangent to the circumference of the upper take-off roll 5b. Ie. there is only a small safety distance between the upper take-off roll 5b and the flap KL.
  • the front end VE of the fiber package P is brought by the air flow prevailing with arrows L on the rear end of the already formed nonwoven fabric V in register. This air flow L results from the corresponding Position of the opening S1 through which the front portion of the hood 46 is placed under negative pressure.
  • the case extracted air volume is z. B. is partially tracked over an existing gap 92 between the lower take-off roll 5a and the cover 50 again, as indicated by an arrow.
  • the second opening S2 is still behind the cover A1 and is therefore out of action.
  • the opening S1 is located in the in Fig. 2b shown position behind the cover A1, whereby it comes out of action.
  • the second opening S2 was moved by a correspondingly controlled rotational movement of the cylinder Z above the cover A1, whereby an air flow is produced, which brings the rear end HE of the fiber package P to rest on the screen drum T.
  • This process is by pivoting the flap KL about the axis SA in a lower in Fig. 2b shown position supported or hedged.
  • the flap KL By using the flap KL, the soldering process of the fiber packages on the screen drum can be carried out easily and selectively, even at high delivery speeds of the fiber packets, without damaging the fiber packets during the piecing process. In particular, it is possible via the flap KL to control or influence the air flows necessary for the piecing process.
  • FIG 4 a further embodiment is shown, wherein within the driven cylinder Z, a cover member A1 is mounted, which extends substantially in the lower region of the cylinder, and also on the removal region AB.
  • the drive of the screen drum T, and the cylinder Z, as well as the connection with the vacuum source Q corresponds substantially to the in Figure 3 shown sectional view.
  • the cylinder Z is provided only with an opening S1.
  • no rod 52 is provided for air guidance within the cover 46 here.
  • a cover 50 is arranged, which generates a foreclosure of the interior of the cover against the environment, thereby preventing uncontrolled air circulation within the cover 46.
  • the cover 46 is provided with an angled end portion 46a, which projects approximately to the peripheral surface U, wherein the distance to the peripheral surface U is selected so that the nonwoven fabric V can still pass this point easily.
  • the elements provided following the acceptance area AB correspond to the elements already described in the example of Fig.2 shown and described.
  • the cylinder Z is driven in opposite directions to the screen drum T. That is to say, the movement of the opening S1 takes place counter to the transport movement of the fiber fleece V. In the position shown, the opening S1 is located directly below the fleece end E and the front end VE of the fiber packet P, which overlap over a certain length. This overlap R is generally referred to as a solder joint.
  • the take-off rollers 5 now rotate as a function of the comb play according to the direction of the arrow and release the rear end HE of the fiber package P.
  • the take-off rollers 5 also turns Cylinder Z, whereby the opening S1 is moved in the direction of the cover 50.
  • a negative pressure is applied via the openings 35 on the peripheral surface U, also following the solder joint R.
  • the opening S1 moves over the area in which the fixed cover A1 is mounted.
  • the provided two openings S1 and S2, in conjunction with the rotational movement of the cylinder Z, ensure that the front end VE of the fiber package P is deflected downwards in the direction of rotation of the screen drum, while the rear end HE of the fiber package P counteracts its release by the take-off rollers 5 the direction of rotation of the screen drum T comes to rest on this.
  • the openings are arranged on the circumference of the cylinder Z, so that they are at the right time in the delivery area AG, in order to move the respective end of the fiber package P E or P on the screen drum.
  • the cover element A1 is arranged in the region of the take-off region AB in order to assist the removal of the fibrous web formed by the drum T through the rollers 40.
  • the storage and the drive of the screen drum T, and the cylinder Z can be carried out in a similar manner, or be carried out as in the Figure 3 was shown.
  • the cover 46 is attached in the present example in the lower region of the screen drum T and also has, as in the example of Fig. 4 an angled portion 46a.
  • the angled portion opposite end of the cover 46th extends to the peripheral surface of the lower roller of the take-off rollers 5, in order to seal off this area as far as possible from the environment.
  • a further cover 54 is provided, which, like the cover 46, is also provided with side walls 57, which protrude to the screen drum T.
  • the cover 54 is provided at its one end region with an angled portion 54a, which has only a small distance from the peripheral surface U.
  • the opposite end of the cover 54 extends to the peripheral surface of the upper roller of the take-off rollers fifth
  • the acceptance area AB with the following elements for forming a sliver FB corresponds to the embodiment, which already in the Fig.2 has been described, which will not be discussed in more detail here.
  • FIG. 6 a further embodiment is shown, which is similar to the example Fig.2 is.
  • the example after Figure 6 differs from example Fig.2 in that instead of a driven cylinder in the interior of the screen drum T two fixed suction channels K1, K2 are provided, which can be connected via the controller ST to the vacuum source Q.
  • the drive of the screen drum T can be carried out in a corresponding manner via the pulley 26, as in Figure 3 was shown. Since the rotatable mounting of the cylinder Z is omitted in the present example, the bearing 20 of the pulley 26 can be made on an extended portion of a designated fixed channel 60, which in turn is fixedly secured to the machine frame MG. This attachment point can be designed so that the channel 60 is closed in this end region, while it communicates at its opposite end with the vacuum source Q in connection.
  • the stationary in the center of the screen drum T channel 60 has two separate channels R1 and R2.
  • the channel R1 can be connected via the supply line.
  • Z1 are connected via a valve V1 to the vacuum source Q.
  • Via the supply line Z2 and via the valve V2 a connection between the channel R2 and the vacuum source Q can be produced.
  • the valves V1 and V2 are each controlled by a control unit ST via the lines 64, and 65 respectively.
  • the channels R1 and R2 have distributed over their longitudinal direction in each case one or more openings 61, and 62, respectively, which open into the suction channels K1, or K2, which are fixedly connected to the channels R1, R2 or.
  • suction channels 61, 62 extend at least over the width B (FIG. Figure 3 ) of the fiber web V and each have an opening 68, or 69, which face the inner circumferential surface of the screen drum T.
  • a cover A1 is provided so that at this point the nonwoven fabric V can be easily removed from the screen drum T.
  • the valve V2 is opened by control via the line 65 by the controller ST, whereby a negative pressure is applied to the screen drum T in the region of the opening 69. This creates, as indicated schematically by an arrow, an air flow L, which essentially due to the in Fig.2 already described geometric relationships, above the rod 52 extends.
  • the front end of the VE still held by the take-off rollers 5 fiber package P is aligned in the direction of air flow, whereby the free end of the fiber bundle P is approximately tangential to the screen drum T.
  • the valve V2 is closed by the controller ST and at the same time the valve V1 is opened.
  • the air flow L breaks off and the front end VE of the fiber bundle P is sucked by the vacuum applied via the suction channel K1 to the end E of the fiber fleece V, and forms an overlap with the fiber fleece. That is, the fiber package P is soldered to the nonwoven fabric V, or connected.
  • the screen drum rotates at a continuous speed, which depends on the height of the Kammspielteil.
  • the rear end HE of the fiber package P is subsequently released, which is sucked onto the screen drum T by the vacuum applied via the suction channel K1.
  • valve V1 After the rear end HE of the fiber bundle P has been placed under the action of the suction air flow of the channel K1 on the drum, the valve V1 is closed again via the controller ST and at the same time the valve V2 is opened again to produce an air flow L. In the meantime, there is already an end of a new fiber package VE, which, as already described, is aligned by the air flow L.
  • the attachment process of the new fiber package P to the end E of the continuously transported on the screen drum fiber web V is now carried out in the same manner as described above.
  • the connection of the valves V1, and V2 takes place as a function of the combing process, or the respective comb play.
  • the controller ST receives via a line 72 a signal from a sensor 71, which, for example, picks up the angular position of the circular comb shaft 75 of a circular comb 13 which is provided by means of a comb segment 12 for combing out a tuft 1 presented by a tongs 1.
  • the device for removing the fiber web V formed on the screen drum T with subsequent banding corresponds to the embodiments of the previously described embodiments, which will not be discussed in more detail here.
  • the design of a pickup device is not limited to the examples shown.
  • Fig. 7 shows an embodiment, wherein instead of a rotating within the drum T cylinder, a pivotable cover 78 is used.
  • This cover 78 is pivotally mounted about an axis 77 via an arm 76 and extends over a portion of the circumference U of the screen drum T.
  • the arm 76 is connected to a drive 80, which is controlled by a control unit ST. The control takes place in synchronization with the comb play.
  • the interior IR of the screen drum is connected to a vacuum source Q.
  • the cover has a small distance h to the circumference U of the screen drum T, which allows the passage of the formed nonwoven fabric V between the drum and cover.
  • a take-off roll 74 is arranged, which together with the screen drum T forms a take-off gap AS and the non-woven fabric V decreases from the screen drum and a subsequent fleece funnel 41, at which it is combined into a sliver FB.
  • the fiber sliver FB thus formed passes via the take-off rolls 42 and the funnel wheel 43 into a can 44.
  • a cover 46 is provided, which has already been described in the preceding embodiments.
  • the cover 78 is in the position shown in dash-dotted lines, whereby the end of the fiber package in the tangential direction in the direction of rotation of the screen drum aligns by the applied negative pressure, since the lower portion the screening drum in the delivery area AG is sealed off from the interior by the cover element 78.
  • the cover member 78 is now pivoted in the direction of rotation of the screen drum until it reaches the position shown in solid lines. During this pivoting, the front end of the fiber packet P slides on the surface of the cover element 78 until it is released by it in the direction of the screen drum T and covers itself with the end of the already existing nonwoven fabric V.
  • the rear end HE of the fiber package P is now released from the take-off rollers 5 and passes under the action of the negative pressure in the interior of the peripheral surface U of the screen drum T, whereby the soldering process is completed.
  • the cover moves back to the position shown in phantom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP05758466A 2004-08-05 2005-07-15 Kämmmaschine. Not-in-force EP1774072B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH13072004 2004-08-05
PCT/CH2005/000407 WO2006012758A1 (de) 2004-08-05 2005-07-15 Kämmmaschine.

Publications (2)

Publication Number Publication Date
EP1774072A1 EP1774072A1 (de) 2007-04-18
EP1774072B1 true EP1774072B1 (de) 2008-05-07

Family

ID=34972279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05758466A Not-in-force EP1774072B1 (de) 2004-08-05 2005-07-15 Kämmmaschine.

Country Status (5)

Country Link
EP (1) EP1774072B1 (ja)
JP (1) JP4814233B2 (ja)
CN (1) CN1993507B (ja)
DE (1) DE502005004034D1 (ja)
WO (1) WO2006012758A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502007001621D1 (de) 2006-12-21 2009-11-12 Rieter Ag Maschf Abreisswalze für eine Kämmmaschine
GB0811207D0 (en) 2007-06-29 2008-07-23 Truetzschler Gmbh & Co Kg Apparatus for the fibre-sorting or fibre-selection of a fibre bundle comprising textile fibres, especially for combing
DE102008004099A1 (de) 2007-06-29 2009-01-02 TRüTZSCHLER GMBH & CO. KG Vorrichtung zur Fasersortierung bzw. -selektion eines Faserverbandes aus Textilfasern, insbesondere zum Kämmen
ITMI20081097A1 (it) 2007-06-29 2008-12-30 Truetzschler Gmbh & Co Kg Apparecchiatura per la cernita di fibre o la selezione di fibre di un fascio di fibre comprendente fibre tessili, specialmente per la pettinatura
CH704224B1 (de) 2007-06-29 2012-06-15 Truetzschler Gmbh & Co Kg Vorrichtung zur Sortierung bzw. Selektion von Fasern eines Faserverbandes aus Textilfasern.
GB0811191D0 (en) 2007-06-29 2008-07-23 Truetzschler Gmbh & Co Kg Apparatus for the fibre-sorting or fibre-selection of a fibre bundle comprising textille fibre, especially for combing
US7823257B2 (en) 2007-06-29 2010-11-02 Fa. Trützschler GmbH & Co. KG Apparatus for the fibre-sorting or fibre-selection of a fibre bundle comprising textile fibres, especially for combing
CH703786B1 (de) 2007-06-29 2012-03-30 Truetzschler Gmbh & Co Kg Vorrichtung zur Fasersortierung bzw. -selektion eines Faserverbandes aus Textilfasern.
CH703154B1 (de) 2007-06-29 2011-11-30 Truetzschler Gmbh & Co Kg Vorrichtung zur Fasersortierung bzw. -selektion eines Faserverbandes aus Textilfasern.
DE102008004098A1 (de) 2007-06-29 2009-01-02 TRüTZSCHLER GMBH & CO. KG Vorrichtung zur Fasersortierung bzw. -selektion eines Faserverbandes aus Textilfasern, insbesondere zum Kämmen, der über Zuführmittel einer Fasersortiereinrichtung, insbesondere Kämmeinrichtung zugeführt wird
EP2108720B1 (de) * 2008-04-11 2011-06-15 Maschinenfabrik Rieter Ag Vorrichtung zur Bildung eines gekämmten Faservlieses
IT1393626B1 (it) * 2009-04-28 2012-05-08 Marzoli Combing & Flyer S P A Cilindro strappatore per pettinatrice
CH701420A2 (de) 2009-07-10 2011-01-14 Rieter Ag Maschf Vorrichtung zur Bildung eines Faserbandes.
CH703192A1 (de) * 2010-05-28 2011-11-30 Rieter Ag Maschf Überwachungsvorrichtung an einer Textilmaschine.
CH705072A1 (de) * 2011-06-06 2012-12-14 Rieter Ag Maschf Kämmmaschine mit einem Abschirmelement.
CH705914A2 (de) 2011-12-16 2013-06-28 Rieter Ag Maschf Rundkamm für eine Kämmmaschine, sowie Kämmmaschine.
CH713459A1 (de) * 2017-02-15 2018-08-15 Rieter Ag Maschf Verfahren zum Betreiben einer Karde sowie Karde.
IT201800004119A1 (it) * 2018-03-30 2019-09-30 Marzoli Machines Textile Srl Pettinatrice di una linea di preparazione alla filatura e metodo di lavoro
IT201900005608A1 (it) * 2019-04-11 2020-10-11 Marzoli Machines Textile Srl Pettinatrice di una linea di preparazione alla filatura

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DE1954010C3 (de) * 1969-10-27 1978-08-24 Continental Oil Co., Ponca City, Okla. (V.St.A.) Verfahren zur Herstellung geradkettiger Alkohole
JPS4822134B1 (ja) * 1970-06-15 1973-07-04
JPS4898130A (ja) * 1972-03-27 1973-12-13
EP0450409A1 (de) * 1990-04-05 1991-10-09 Maschinenfabrik Rieter Ag Kämmaschine
DE19504010A1 (de) * 1995-02-09 1996-08-14 Chemnitzer Spinnereimaschinen Kämmaschine mit Zangenapparat, Rundkämmwalze, Fixkamm und Abreißwalzenpaar
US5600871A (en) * 1995-09-08 1997-02-11 Mandl; Gerhard Combing machine having pneumatic detachment assist
WO1997023671A1 (en) * 1995-12-22 1997-07-03 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for processing fibrous matter
CH693344A5 (de) * 1998-08-28 2003-06-13 Rieter Ag Maschf Fasersortiereinrichtung.

Also Published As

Publication number Publication date
CN1993507B (zh) 2011-01-26
JP4814233B2 (ja) 2011-11-16
WO2006012758A1 (de) 2006-02-09
JP2008508441A (ja) 2008-03-21
DE502005004034D1 (de) 2008-06-19
CN1993507A (zh) 2007-07-04
EP1774072A1 (de) 2007-04-18

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