EP2737117B1 - Compaction device for a spinning machine - Google Patents
Compaction device for a spinning machine Download PDFInfo
- Publication number
- EP2737117B1 EP2737117B1 EP12737186.2A EP12737186A EP2737117B1 EP 2737117 B1 EP2737117 B1 EP 2737117B1 EP 12737186 A EP12737186 A EP 12737186A EP 2737117 B1 EP2737117 B1 EP 2737117B1
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- EP
- European Patent Office
- Prior art keywords
- pressure arm
- receptacle
- axle
- axis
- suction
- 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.)
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/72—Fibre-condensing guides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/02—Spinning or twisting machines in which the product is wound-up continuously ring type
- D01H1/025—Spinning or twisting machines in which the product is wound-up continuously ring type with a condensing device between drafting system and spinning unit
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/70—Constructional features of drafting elements
- D01H5/74—Rollers or roller bearings
Definitions
- the invention relates to a compression unit of a unit mounted at the exit of a drafting unit for compacting a fiber strand supplied by the drafting unit of a spinning machine, the compacting unit comprising a support on which at least one suction drum provided with a suction zone is rotatably mounted on an axle and on which in order to form a nip at the end of the suction zone in each case one, mounted on the carrier pinch roller under the action of a, attached to the carrier pressure element rests.
- a variety of designs are already known, for compacting (compacting) of the votes of a drafting unit fiber material (fiber strand) downstream of a compacting device.
- a swirl-generating device is supplied.
- Such a swirl generating device consists for. Example, in a ring spinning machine from a rotor which rotates on a ring, wherein the yarn produced is wound on a rotating sleeve.
- compression means are substantially evacuated circumferential, perforated suction drums or circumferential, provided with perforations straps used.
- compression devices are known, which can also be subsequently added to existing drafting units.
- a pinch roller is pressed against the respective suction drum via a spring element secured to a support of the assembly to create a nip point for the compressed fiber material downstream of the suction zone before being fed to a subsequent spin-generating device.
- the proposed attachment of the pinch roller requires special tools and is inflexible. That is, in order to release the nip between the suction drum and the pinch roller, the gland must first be loosened. Only then can the clamping roller be removed from its clamping position.
- the compacting unit comprises a flexible compacting belt which wraps around a roller, a suction shoe and a deflection bar.
- the roller looped around by the compacting apron is assigned on the upper side a clamping roller and on the underside a drive roller extending over the length of the machine.
- the compression unit can be attached following a drafting unit.
- the drive roller is mounted for this purpose in an extension part, which is attached by screws to a punch of the drafting unit.
- a loading lever is provided to guide and load the pinch roller.
- the loading lever is pivotally mounted by means of a bolt at a pivot point in a support piece.
- the support piece is attached to a support rod extending through all the punches along the machine.
- the load lever is under the tensile load of a tension spring, which is mounted on the support piece and the loading lever. Due to the structure described, the assembly of pinch roller, load lever and tension spring can not be decoupled together with the compression device of the drafting unit. The conversion of a drafting with compression device to a drafting without compression device therefore proves to be time consuming.
- This is in contrast to the subject invention an integral part of a drafting unit of a spinning machine, ie the compacting device is not downstream of a drafting unit of a spinning machine.
- the compacting device is in this case formed by a rotatably mounted screen drum, which is fastened on a rotation axis.
- the screen drum simultaneously represents the lower roller of the pair of output rollers of the drafting system. That is, in the DE 197 26 694 A1 shown compaction screen drum is an integral part of the drafting unit. Therefore, the compression device can not be easily decoupled from the drafting unit.
- the clamping roller is rotatably mounted on an axis rotatably mounted on a, about a pivot axis pivotally mounted on the carrier and provided with a spring element pressure arm. Due to the pivotable arrangement, the pinch roller can be easily pivoted from its clamping position into an inoperative position. Equally simple is the pivoting back into an operating position from the non-operating position, wherein the previously set pressure force of the spring element remains constant. Furthermore, it is proposed that the spring element between the pivot axis of the pressure arm and the axis of rotation of the pinch roller is mounted. Thus, a compact design of the pressure arm can be achieved.
- a stop on the support is provided, which projects into the range of movement of the pressure arm to keep the pressure arm in an over-center position, in which the axis of the pinch roller is adjacent to a plane which passes through the axis of the suction drum and the pivot axis of the pressure arm.
- Overlying suction drums is provided and each suction drum is associated with a respective pinch roller, wherein the pinch rollers are rotatably mounted on a common pressure arm on a common axis.
- the pressure arm is provided with a pointing in the direction of the suction drums open, U-shaped receptacle for the axis of the pinch rollers. This makes it possible to transfer the axis of the pinch rollers over the opening of the recording quickly and without special tools in their working position within the recording. Furthermore, it is proposed that the length of the receptacle, seen in the longitudinal direction of the pressure arm, is greater than the diameter of the guided in the recording axis of the pinch rollers and at least one, acted upon by the spring element element in the range of movement of the axis in the longitudinal direction of the recording in the Intake sticks out.
- the displacement of the axis of the pinch rollers in the longitudinal direction of the receptacle is made possible, wherein it is simultaneously loaded via the protruding into the receiving element with a compressive force by the spring element.
- the clear width of the receptacle in the region of its opening is smaller than the diameter of the guided in the recording axis of the pinch rollers. This makes it possible to keep the mounted in the recording axis of the pinch rollers in the recording, even if the pinch roller no longer receives back pressure in the swung-out state through the suction drum.
- the pressure force exerted on the axis of the pinch rollers via the spring-loaded element projecting into the receptacle is smaller than the force which is sufficient to press the axis out of the restricted opening of the receptacle.
- the pre-assembly of the pressure arm is made possible with the pinch rollers without the pinch rollers fall out of the recording of the pressure arm.
- at least the receptacle made of an elastic material, for. B. made of a plastic.
- the material Due to the elasticity of the material (eg plastic), the material returns to its original position in the area of the opening and thus locks the axle in the mounted position in the receptacle.
- the sum of the maximum excess mass with which the element can project into the receptacle under spring loading and the diameter of the in The axis of the recording of the pinch rollers is greater than the length of the receptacle between an inner end boundary and the region of the opening with reduced clearance.
- the still acting pressure force in the described forward position is smaller than the force which is necessary to push the axis of the pinch rollers over the restricted position of the opening of the receptacle.
- the pressure arm is provided with an axis arranged transversely to its longitudinal axis, which projects beyond the pressure arm in its width and the carrier has two opposing guides on which the pressure arm at the transfer is guided in its pivot position.
- the guides elements are resiliently evasive mounted, which locks the axis of the pressure arm when reaching its pivot position in this position.
- the resiliently mounted elements can be transferred without special tools in a position to achieve a release of the axis of the pressure arm. Subsequently, this can be easily disassembled on the guides.
- the pressure arm can be made of plastic and the spring element can be accommodated in an encapsulated space of the pressure arm. This gives a compact and closed unit, in which also the spring element is protected from dirt.
- FIG. 1 shows a schematic side view of a spinning station 1 a spinning machine (ring spinning machine) with a drafting unit 2, which is provided with an input roller pair 3, 4, a middle roller pair 5, 6 and a pair of output rollers 7, 8.
- a strap 12, 13 out which are each held around a cage, not shown in detail in its illustrated position.
- the upper rollers 4, 6, 8 of said pairs of rollers are designed as pressure rollers, which are rotatably mounted on the axes 4a, 6a, 8a on a pivotally mounted pressure lever 10.
- the pressure lever 10 is pivotally mounted about an axis 15 and, as shown schematically, acted upon by a spring element F.
- This spring element can, for. B. also be an air hose.
- the rollers 4, 6, 8 pressed against the lower rollers 3, 5 and 7 of the roller pairs to form a nip for the fiber material.
- the roller pairs 3, 5, 7 are (not shown) connected to a drive. Individual drives, as well as other forms of drive (gears, timing belts, etc.) are used.
- About the driven lower rollers 3, 5, 7, the pressure rollers 4, 6, 8, and the belt 13 are driven via the belt 12 via friction.
- the peripheral speed of the driven roller 5 is slightly higher than the peripheral speed of the driven roller 3, so that the, the drafting unit 2 supplied fiber material in the form of a sliver L between the input roller pair 3, 4 and the middle roller pair 5, 6 is subjected to a pre-delay.
- the main distortion of the fiber V arises between the middle roller pair 5, 6 and the pair of output rollers 7, 8, wherein the output roller 7 has a substantially higher peripheral speed than the center roller 5.
- a pressure lever 10 is assigned to two adjacent drafting unit units 2 (twin drafting unit 2z). Since it is the same or partially mirror-image arranged elements of the adjacent drafting units, or compression devices, the same reference numerals are used for these parts.
- the drawn out of the output roller pair 7, 8 stretched fiber material V is deflected downward and enters the region of a suction zone Z of a subsequent suction drum 17.
- the respective suction drum 17 is provided with extending on its circumference perforations or openings ⁇ ( Fig.1f ) Mistake.
- a stationary mounted suction insert 18 is arranged in each case, which is fastened to a support 20 of a compression unit VM.
- Designs and arrangements of the absorbent insert are in the not yet published Swiss patent application CH-01992/10 from 26.11.2010 shown.
- drive elements which are connected to the respective suction drum 17 and occupy a frictional connection in the operating position with the lower roller 7 of the pair of output rollers.
- the respective suction drum 17 or drive means connected to it lies on the circumference of the driven roller 7 and is driven by the latter via friction.
- the contact pressure of the suction drum 17 on the lower roller 7 takes place in the example of Fig.1 via a leaf spring 68, which is fastened by screws 69 on the pressure lever 10.
- the leaf spring exerts a compressive force in the direction of the attached to the carrier 20 essay 60 in the region of its end-mounted web 62, whereby the compression unit is locked in this position. It is also possible to mount the attachment 60 directly in the area of the bearing for the axle 22.
- the suction drum 17, or two twin drums 2z associated suction drums 17 are rotatably mounted on a carrier 20 of the compression unit VM on a shaft 22 fixed to the carrier.
- a suction channel SK which communicates with the respective suction insert 18, as shown schematically in FIG Fig.1 will be shown.
- a machine frame MR of the spinning machine facing the end of the carrier 20, the carrier is provided with a U-shaped end piece 46, in which the suction channel SK opens with an opening S2.
- the opening S2 is in the position shown an opening SR of a suction tube 50 opposite, which is fixed to the machine frame MR of the spinning machine.
- a clamping roller 33 is provided for each of the suction drums 17, which rests on the respective suction drum 17 via a pressure load and forms with it a clamping line P.
- the respective pinch roller 33 is rotatably mounted on an axis 32 which is held in a, provided with an opening 74 guide slot 73 of a U-shaped receptacle AN of a pressure arm 72.
- the axis 32 is slidably mounted within the guide slot 73 transversely to its longitudinal axis.
- a plunger 35 which rests on the outer circumference of the axis 32 and is acted upon by a compression spring F2.
- the opening 38 is mounted approximately centrally at the end of the guide slot 73 and opens into a, substantially closed cavity 54, in which the compression spring F2 is arranged. This supports one end at the closed end of the cavity and lies with the opposite end on a head 36 of the plunger 35.
- the head 36 has a larger diameter than the clear width of the opening 38. This prevents the ram 35 can slide with its head 36 through the opening 38 out.
- the distance b1 between the enlarged diameters d1 is slightly larger than the width b of the receptacle AN of the pressure arm 72.
- a narrowing w is provided in the region of the opening 74 of the guide slot w, which is smaller than the diameter d of the axis 32 and the inner clear Width k of the guide slot 73.
- the mass k of the guide slot is only slightly larger than the diameter d to allow the displacement of the axis 32 within the guide slot.
- the material deviates laterally in the region of the opening 74 and returns to its original position after passing through the axle 32.
- the plunger 35 already comes to rest on the circumference of the axis 32 and exerts a compressive force on the axis 32 in the direction of the opening 74 of the receptacle AN under the action of the compression spring F2.
- a distance a is now present, so that the spring force of the spring F2 comes into effect and on the plunger 35 can exert a compressive force on the circumference of the axis 32.
- this force is less than the force which is necessary to push out the axis 32 over the constriction with the width w from the receptacle AN.
- the axis 32 of the pinch rollers 33 is held in a stable position in the assembled state, even if no back pressure is generated by the suction drums with which they form a terminal point P in operation.
- an axis 24 is attached to the pressure arm 72, which projects beyond the width b of the pressure arm 72 with a measure s on both sides.
- the pressure arm 72 superior axis 24 of the pressure arm is pivotally held in a bearing element 80.
- the bearing element 80 has two webs T running parallel to one another at a distance b2, between which the pressure arm 72 is arranged and can execute a pivoting movement.
- the bearing element 80 is fixedly connected to the carrier 20.
- a guide 81 is provided on the webs T, which have the shape of a longitudinal groove and facing each other.
- the bolts 85 are bolts 87, which project into the respective guide 81 via an opening 88 in each case.
- the bolts are each attached to one end of a spring bar 86, the other end of which is attached to the webs T via fastening means 89 on the outside.
- the bolts are provided with an inclined surface 90, over which they against the spring action of the spring rod 86 through the, in the respective guide 81 moved axis 24 via the respective opening 88 from the range of movement of the axis, or from the Guide 81 are pushed out.
- the bolts 87 are moved back into the region of the guides 81 under the spring force of the spring bars 86.
- the return path for the axis 24 is blocked and fixed the axis in its pivoting position. Since the bolts 87 on the opposite side of the inclined surface 90 have a straight surface (which runs approximately parallel to the lateral surface of the axis 24), the disassembly of the pressure arm can be done only with additional handles or tools. This should prevent inadvertent release of the pressure arm from the pivot position.
- the bars are pushed out of their respective opening 88 by hand or with additional aids, so that the axis 24 can pass through the locking point. After passing this point, the pressure arm on the guides 81 can be easily removed.
- the nip line P between the suction drum 17 and the pressure roller resting on it, 33 simultaneously forms a so-called "rotation lock gap", from which the fiber is fed in the conveying direction FS in the form of a compressed yarn FK under rotation distribution of a ring spinning device shown schematically.
- This is provided with a ring 39 and a rotor 40, wherein the yarn is wound on a sleeve 41 to form a coil 42 (Kops).
- a yarn guide 43 is arranged between the nip line P and the rotor 40.
- the ring 39 is attached to a ring frame 44, which performs an up and down movement during the spinning process.
- a suction pipe 75 is attached to both sides of the support 20 and is provided with an opening (not shown). The suction pipe opens into the suction channel SK of the carrier 20th
- the transfer of the suction drums 17 is shown from an inoperative position to an operating position.
- the carrier 20 is shown only schematically dash-dotted lines. How out Fig.2 is to be transferred via the guide 52 (which simultaneously forms a stop for the lower pivot position of the compacting unit VM), the carrier 20 is transferred from a representation shown in dashed lines in a mounted first out of service position.
- the end piece 46 when moving the support in the direction of the suction tube 50, the end piece 46 is pushed in the region of the coupling point KS on the suction pipe 50 by hand until it is seated on the suction pipe and clamped there.
- Postponing The end piece 46 can now be the support 20, or the entire compression unit VM about the center axis MA of the suction tube 50 in the direction of the pair of output rollers 7, 8 of the drafting unit 2 pivoted about the end piece 46.
- the suction drum 17 or drive means connected to it comes into contact with the lower roller 7, whereby a drive connection between the driven roller 7 and the suction drum 17 is produced via a frictional connection (friction).
- the pinch roller 33 is pivoted under the action of the lower roller 7 and the spring F2 in an over-center position, which in Figure 4 is shown. That is, the axis 32 of the pinch roller 33 is now below the level VL in which the axis 22 of the suction drum 17 and the pivot axis 24 of the pressure arm 72 is located.
- a stop 64 is mounted on the carrier 20 on which the pressure arm 72 comes to rest ( Figure 4 ).
- the dismantling of the compression unit takes place in the reverse direction.
- the return of the pinch roller 33 after disassembly into the in Fig.2 shown position can be done manually.
Description
Die Erfindung bezieht sich auf eine Verdichtungseinheit einer am Ausgang einer Streckwerkseinheit angebrachten Baueinheit zum Verdichten eines, von der Streckwerkseinheit einer Spinnmaschine gelieferten Faserverbandes, wobei die Verdichtungseinheit einen Träger aufweist, an welchem wenigstens eine, mit einer Saugzone versehene Saugtrommel drehbar auf einer Achse gelagert ist und auf welcher zur Bildung einer Klemmlinie am Ende der Saugzone jeweils eine, am Träger angebrachte Klemmwalze unter Einwirkung eines, am Träger angebrachten Druckelementes aufliegt.The invention relates to a compression unit of a unit mounted at the exit of a drafting unit for compacting a fiber strand supplied by the drafting unit of a spinning machine, the compacting unit comprising a support on which at least one suction drum provided with a suction zone is rotatably mounted on an axle and on which in order to form a nip at the end of the suction zone in each case one, mounted on the carrier pinch roller under the action of a, attached to the carrier pressure element rests.
Aus der Praxis sind bereits eine Vielzahl von Ausführungen bekannt, wobei zum Kompaktieren (Verdichten) des von einer Streckwerkseinheit abgegebenen Fasergutes (Faserstrang) eine Verdichtungseinrichtung nachgeordnet ist. Im Anschluss an eine solche Verdichtungseinrichtung wird das verdichtete Fasergut, nach Passieren einer Klemmstelle, einer Drallerzeugungsvorrichtung zugeführt. Eine solche Drallerzeugungsvorrichtung besteht z. B. bei einer Ringspinnmaschine aus einem Läufer, der auf einem Ring umläuft, wobei das erzeugte Garn auf eine umlaufende Hülse aufgewickelt wird. Als Verdichtungseinrichtungen kommen im wesentlichen besaugte umlaufende, perforierte Saugtrommeln oder umlaufende, mit Perforationen versehene Riemchen zum Einsatz. Dabei sind Verdichtungsvorrichtungen bekannt, welche auch nachträglich noch an bestehende Streckwerkseinheiten angebaut werden können.From practice, a variety of designs are already known, for compacting (compacting) of the votes of a drafting unit fiber material (fiber strand) downstream of a compacting device. Subsequent to such a compacting device, the compacted fiber material, after passing through a nip, a swirl-generating device is supplied. Such a swirl generating device consists for. Example, in a ring spinning machine from a rotor which rotates on a ring, wherein the yarn produced is wound on a rotating sleeve. As compression means are substantially evacuated circumferential, perforated suction drums or circumferential, provided with perforations straps used. Here, compression devices are known, which can also be subsequently added to existing drafting units.
Eine solche wurde in der noch nicht veröffentlichten CH-Patentanmeldung
Über ein, an einem Träger der Baueinheit befestigtes Federelement wird eine Klemmwalze gegen die jeweilige Saugtrommel gedrückt, um eine Klemmstelle für das verdichtete Fasergut nach der Saugzone zu erzeugen, bevor es einer nachfolgenden Drallerzeugungsvorrichtung zugeführt wird.
Die hier vorgeschlagene Anbringung der Klemmwalze erfordert spezielles Werkzeug und ist unflexibel. D.h., um die Klemmstelle zwischen der Saugtrommel und der Klemmwalze zu lösen, muss zuerst die Verschraubung gelöst werden. Erst danach kann die Klemmwalze aus ihrer Klemmposition entfernt werden.Such was in the not yet published CH patent application
A pinch roller is pressed against the respective suction drum via a spring element secured to a support of the assembly to create a nip point for the compressed fiber material downstream of the suction zone before being fed to a subsequent spin-generating device.
The proposed attachment of the pinch roller requires special tools and is inflexible. That is, in order to release the nip between the suction drum and the pinch roller, the gland must first be loosened. Only then can the clamping roller be removed from its clamping position.
Auch ist aus der
Zudem zeigt die
Es stellt sich anhand der bekannten Lösungen nun die Aufgabe eine Vorrichtung für die Anbringung einer Klemmwalze vorzuschlagen, welche einfach und schnell ohne spezielles Werkzeug montiert und demontiert werden kann.It turns on the basis of the known solutions now the task to propose a device for the attachment of a pinch roller, which can be easily and quickly assembled and disassembled without special tools.
Diese Aufgabe wird dadurch gelöst, indem vorgeschlagen wird, dass die Klemmwalze auf einer Achse drehbeweglich an einem, über eine Schwenkachse schwenkbar am Träger angebrachten und mit einem Federelement versehenen Druckarm gelagert ist. Durch die schwenkbare Anordnung kann die Klemmwalze einfach aus ihrer Klemmstellung in eine Ausserbetriebsstellung verschwenkt werden. Ebenso einfach ist auch das Zurückschwenken in eine Betriebsstellung aus der Ausserbetriebsstellung, wobei die zuvor eingestellte Druckkraft des Federelementes konstant bleibt.
Des Weiteren wird vorgeschlagen, dass das Federelement zwischen der Schwenkachse des Druckarmes und der Drehachse der Klemmwalze angebracht ist.
Damit kann eine kompakte Bauweise des Druckarmes erzielt werden.
Um die Klemmwalze sicher in ihrer Arbeitsposition auf der jeweiligen Saugtrommel zu halten, wird weiter vorgeschlagen, dass ein Anschlag am Träger vorgesehen ist, der in den Bewegungsbereich des Druckarmes ragt, um die den Druckarm in einer Übertotpunktlage zu halten, in welcher die Achse der Klemmwalze neben einer Ebene liegt, welche durch die Achse der Saugtrommel und die Schwenkachse des Druckarmes verläuft. berliegenden Saugtrommeln versehen ist und jeder Saugtrommel jeweils eine Klemmwalze zugeordnet ist, wobei die Klemmwalzen an einem gemeinsamen Druckarm auf einer gemeinsamen Achse drehbar gelagert sind. Damit erhält man eine vereinfachte und kompakte Baueinheit für den Einsatz an einem Zwillingsstreckwerk, wobei nur ein Träger für beide Saugtrommeln und ein Druckarm für beide Klemmwalzen benötigt werden.
Zur einfachen und schnellen Befestigung der Klemmwalzen auf dem Druckarm wird vorgeschlagen, dass der Druckarm mit einer, in Richtung der Saugtrommeln zeigenden offenen, U-förmigen Aufnahme für die Achse der Klemmwalzen versehen ist. Damit ist es möglich, die Achse der Klemmwalzen über die Öffnung der Aufnahme schnell und ohne besonderes Werkzeug in ihre Arbeitsposition innerhalb der Aufnahme zu überführen.
Des Weiteren wird vorgeschlagen, dass die Länge der Aufnahme, in Längsrichtung des Druckarmes gesehen, grösser ist als der Durchmesser der in der Aufnahme geführten Achse der Klemmwalzen und wenigstens ein, mit dem Federelement beaufschlagtes Element in den Bewegungsbereich der Achse in Längsrichtung der Aufnahme in die Aufnahme ragt. Dadurch wird die Verschiebung der Achse der Klemmwalzen in Längsrichtung der Aufnahme ermöglicht, wobei sie gleichzeitig über das in die Aufnahme hineinragende Element mit einer Druckkraft durch das Federelement belastet wird. Damit erhält man eine sehr flexible Anbringung der Klemmwalzen.
Es wir weiter vorgeschlagen, dass die lichte Weite der Aufnahme im Bereich ihrer Öffnung geringer ist, als der Durchmesser der in der Aufnahme geführten Achse der Klemmwalzen. Damit ist es möglich die in der Aufnahme montierte Achse der Klemmwalzen in der Aufnahme zu halten, auch wenn die Klemmwalze im ausgeschwenktem Zustand kein Gegendruck mehr durch die Saugtrommel erhält. D.h., die noch auf die Achse der Klemmwalzen ausgeübte Druckkraft über das in die Aufnahme hineinragende federbelastete Element ist kleiner als die Kraft, welche ausreicht, um die Achse aus der verengten Öffnung der Aufnahme zu drücken. Damit wird auch die Vormontage des Druckarmes mit den Klemmwalzen ermöglicht, ohne dass die Klemmwalzen aus der Aufnahme des Druckarmes herausfallen.
Vorzugsweise ist zumindest die Aufnahme aus einem elastischen Material, z. B. aus einem Kunststoff hergestellt. Durch die Verwendung des elastischen Materials ist es möglich unter Aufbringung nur einer geringen Kraft die Achse der Klemmwalzen über die verengte Öffnung in die Aufnahme des Druckarmes einzuführen. Durch die Elastizität des Materials (z. B. Kunststoff) kehrt das Material im Bereich der Öffnung wieder in ihre ursprüngliche Lage zurück und verriegelt somit die Achse in der montierten Stellung in der Aufnahme.
Damit die Achse der Klemmwalzen in der montierten Stellung sicher gehalten wird, selbst wenn sie sich im vorderen Bereich der Öffnung befindet, wird vorgeschlagen, dass die Summe des maximalen Überstandsmasses, mit welchem das Element unter Federbelastung in die Aufnahme hineinragen kann und der Durchmesser der in der Aufnahme befindlichen Achse der Klemmwalzen grösser ist als die Länge der Aufnahme zwischen einer inneren Endbegrenzung und dem Bereich der Öffnung mit verringerter lichten Weite. Dabei ist die noch wirkende Druckkraft in der beschriebenen vorderen Stellung jedoch kleiner, als die Kraft, welche notwendig ist, um die Achse der Klemmwalzen über die verengte Stellung der Öffnung aus der Aufnahme zu drücken.
Um den Druckarm einfach uns ohne besonderes Werkzeug in seine Schwenkposition zu überführen wird vorgeschlagen, dass der Druckarm mit einer quer zu seiner Längsrichtung angeordneten Achse versehen ist, welche den Druckarm in seiner Breite überragt und der Träger zwei gegeneinander gegenüberliegende Führungen aufweist über welche der Druckarm bei der Überführung in seine Schwenkposition geführt wird.
Des Weiteren wird vorgeschlagen, dass im Bereich der Führungen Elemente federnd ausweichbar angebracht sind, welche die Achse des Druckarmes beim Erreichen seiner Schwenkposition in dieser Lage arretiert. Damit wird der Druckarm sicher in seiner schwenkbaren Position gehalten. Für die Demontage aus dieser Position können die federnd angebrachten Elemente ohne besonderes Werkzeug in eine Lage überführt werden, um eine Freigabe der Achse des Druckarmes zu erreichen. Anschliessend kann dieser einfach über die Führungen demontiert werden.
Vorzugsweise kann der Druckarm aus Kunststoff hergestellt sein und das Federelement in einem abgekapselten Raum des Druckarmes untergebracht sein. Damit erhält man eine kompakte und geschlossene Baueinheit, in welcher auch das Federelement von Verschmutzungen geschützt ist.This object is achieved by proposing that the clamping roller is rotatably mounted on an axis rotatably mounted on a, about a pivot axis pivotally mounted on the carrier and provided with a spring element pressure arm. Due to the pivotable arrangement, the pinch roller can be easily pivoted from its clamping position into an inoperative position. Equally simple is the pivoting back into an operating position from the non-operating position, wherein the previously set pressure force of the spring element remains constant.
Furthermore, it is proposed that the spring element between the pivot axis of the pressure arm and the axis of rotation of the pinch roller is mounted.
Thus, a compact design of the pressure arm can be achieved.
In order to hold the pinch roller securely in its working position on the respective suction drum, it is further proposed that a stop on the support is provided, which projects into the range of movement of the pressure arm to keep the pressure arm in an over-center position, in which the axis of the pinch roller is adjacent to a plane which passes through the axis of the suction drum and the pivot axis of the pressure arm. Overlying suction drums is provided and each suction drum is associated with a respective pinch roller, wherein the pinch rollers are rotatably mounted on a common pressure arm on a common axis. This gives a simplified and compact unit for use in a twin drafting system, with only one support for both suction drums and a pressure arm for both pinch rollers are needed.
For easy and quick attachment of the pinch rollers on the pressure arm is proposed that the pressure arm is provided with a pointing in the direction of the suction drums open, U-shaped receptacle for the axis of the pinch rollers. This makes it possible to transfer the axis of the pinch rollers over the opening of the recording quickly and without special tools in their working position within the recording.
Furthermore, it is proposed that the length of the receptacle, seen in the longitudinal direction of the pressure arm, is greater than the diameter of the guided in the recording axis of the pinch rollers and at least one, acted upon by the spring element element in the range of movement of the axis in the longitudinal direction of the recording in the Intake sticks out. Thereby, the displacement of the axis of the pinch rollers in the longitudinal direction of the receptacle is made possible, wherein it is simultaneously loaded via the protruding into the receiving element with a compressive force by the spring element. This gives a very flexible attachment of the pinch rollers.
It is further proposed that the clear width of the receptacle in the region of its opening is smaller than the diameter of the guided in the recording axis of the pinch rollers. This makes it possible to keep the mounted in the recording axis of the pinch rollers in the recording, even if the pinch roller no longer receives back pressure in the swung-out state through the suction drum. That is, the pressure force exerted on the axis of the pinch rollers via the spring-loaded element projecting into the receptacle is smaller than the force which is sufficient to press the axis out of the restricted opening of the receptacle. Thus, the pre-assembly of the pressure arm is made possible with the pinch rollers without the pinch rollers fall out of the recording of the pressure arm.
Preferably, at least the receptacle made of an elastic material, for. B. made of a plastic. By using the elastic material it is possible with the application of only a small force to introduce the axis of the pinch rollers on the narrowed opening in the receptacle of the pressure arm. Due to the elasticity of the material (eg plastic), the material returns to its original position in the area of the opening and thus locks the axle in the mounted position in the receptacle.
In order to ensure that the axis of the pinch rollers is securely held in the mounted position, even if it is in the front of the opening, it is proposed that the sum of the maximum excess mass with which the element can project into the receptacle under spring loading and the diameter of the in The axis of the recording of the pinch rollers is greater than the length of the receptacle between an inner end boundary and the region of the opening with reduced clearance. However, the still acting pressure force in the described forward position is smaller than the force which is necessary to push the axis of the pinch rollers over the restricted position of the opening of the receptacle.
To convert the pressure arm us without special tools in its pivot position, it is proposed that the pressure arm is provided with an axis arranged transversely to its longitudinal axis, which projects beyond the pressure arm in its width and the carrier has two opposing guides on which the pressure arm at the transfer is guided in its pivot position.
Furthermore, it is proposed that in the region of the guides elements are resiliently evasive mounted, which locks the axis of the pressure arm when reaching its pivot position in this position. Thus, the pressure arm is securely held in its pivotal position. For disassembly from this position, the resiliently mounted elements can be transferred without special tools in a position to achieve a release of the axis of the pressure arm. Subsequently, this can be easily disassembled on the guides.
Preferably, the pressure arm can be made of plastic and the spring element can be accommodated in an encapsulated space of the pressure arm. This gives a compact and closed unit, in which also the spring element is protected from dirt.
Weitere Vorteile der Erfindung werden in nachfolgenden Ausführungsbeispielen näher beschrieben und aufgezeigt.Further advantages of the invention are described in more detail in subsequent embodiments and shown.
Es zeigen:
- Fig.1
- eine schematische Seitenansicht einer Streckwerkseinheit mit einer angebauten und in Verriegelungsstellung befindlicher Baueinheit einer Verdichtungseinheit.
- Fig.1a
- eine vergrösserte Ansicht X nach
Fig.1 von der Kopplungsstelle - Fig.1b
- eine Seitenansicht nach
Fig.1 a - Fig.1c
- eine vergrösserte Draufsicht auf den Druckarm nach
Fig.1 - Fig.1d
- eine Seitenansicht M nach
Fig.1c - Fig.1e
- eine vergrösserte Ansicht Y nach
Fig.1 mit Seitenführungen zur seitlichen Fixierung für den Träger der Verdichtungseinheit. - Fig.1f
- eine verkleinerte Draufsicht N nach
Fig.1 - Fig.2
- eine schematische Teilansicht der Verdichtungseinheit in einer Ausserbetriebsstellung mit einer Klemmwalze oberhalb einer Totpunktstellung
- Fig.3
- eine schematische Teilansicht nach
Fig.2 mit einer Walze in der Totpunktstellung - Fig.4
- eine schematische Teilansicht nach
Fig.2 mit einer Walze unterhalb der Totpunktstellung
- Fig.1
- a schematic side view of a drafting unit with an attached and located in the locking position unit of a compression unit.
- 1a
- an enlarged view of X after
Fig.1 from the coupling point - 1b shows
- a side view after
Fig.1 a - Figure 1C
- an enlarged plan view of the pressure arm after
Fig.1 - Fig.1d
- a side view M after
Figure 1C - 1E
- an enlarged view Y after
Fig.1 with side guides for lateral fixation for the carrier of the compression unit. - Fig.1f
- a reduced top view N after
Fig.1 - Fig.2
- a schematic partial view of the compacting unit in an inoperative position with a pinch roller above a dead center position
- Figure 3
- a schematic partial view after
Fig.2 with a roller in the dead center position - Figure 4
- a schematic partial view after
Fig.2 with a roller below the dead center position
Wie aus der
Das von dem Ausgangswalzenpaar 7, 8 abgegebene verstreckte Fasergut V wird nach unten abgelenkt und gelangt in den Bereich einer Saugzone Z einer nachfolgenden Saugtrommel 17. Die jeweilige Saugtrommel 17 ist mit auf ihrem Umfang verlaufenden Perforationen, bzw. Öffnungen Ö (
Die Anpresskraft der Saugtrommel 17 auf die Unterwalze 7 erfolgt im Beispiel der
Wie aus den vergrösserten Ansichten der
Like from the
The drawn out of the
The contact pressure of the
As from the enlarged views of
Die Saugtrommel 17, bzw. zwei einem Zwillingsstreckwerk 2z zugeordnete Saugtrommeln 17 (
Mit einem, am Ende des Trägers 20 angebrachten U-förmigen Endstück 46 ist der Träger 20 schwenkbar um die Mittenachse MA des Saugrohres befestigt und bildet eine Kupplungsstelle KS. Durch ein masslich entsprechend ausgebildetes Endstück 46 in bezug auf die Dimension des Saugrohres 50 wird eine Klemmwirkung zwischen dem Saugrohr 50 und dem Endstück 46 erzielt, wodurch der Träger 20 auf dem Saugrohr 50 gehalten wird.
Wie schematisch in
In einer Saugzone Z wird, unter Einwirkung eines, über eine Unterdruckquelle SP angelegten Unterdruckes, eine Einbindung der äusseren abstehenden Fasern vorgenommen und das Fasergut komprimiert. Dazu ist die jeweilige Saugtrommel mit Öffnungen O auf ihrem Umfang versehen, die mit nicht gezeigten Saugschlitzen des Saugeinsatzes 18 zusammenwirken.
Im Anschluss an die Saugzone Z ist für jede der Saugtrommeln 17 eine Klemmwalze 33 vorgesehen, die über eine Druckbelastung auf der jeweiligen Saugtrommel 17 aufliegt und mit dieser eine Klemmlinie P bildet. Dabei ist die jeweilige Klemmwalze 33 auf einer Achse 32 drehbar gelagert, welche in einem, mit einer Öffnung 74 versehenen Führungsschlitz 73 einer U-förmigen Aufnahme AN eines Druckarmes 72 gehalten wird. Die Achse 32 ist innerhalb des Führungsschlitzes 73 quer zu ihrer Längsachse verschiebbar gelagert. In den Führungsschlitz ragt durch eine Öffnung 38 ein Stössel 35, welcher auf dem Aussenumfang der Achse 32 aufsitzt und von einer Druckfeder F2 beaufschlagt wird. Die Öffnung 38 ist etwa mittig am Ende des Führungsschlitzes 73 angebracht und mündet in einen, im wesentlichen geschlossenen Hohlraum 54, in welchem die Druckfeder F2 angeordnet ist. Diese stützt sich einen Ends am geschlossenen Ende des Hohlraumes ab und liegt mit dem gegenüberliegenden Ende auf einem Kopf 36 des Stössels 35 auf. Der Kopf 36 weist dabei einen grösseren Durchmesser auf als die lichte Weite der Öffnung 38. Damit wird verhindert, dass der Stössel 35 mit seinem Kopf 36 durch die Öffnung 38 heraus gleiten kann. Wenn sich keine Achse 32 innerhalb des Führungsschlitzes befindet, kommt durch die entsprechend gewählten geometrischen Verhältnisse und die vorhandene Federkraft der Druckfeder F2 die Schulter 37 des Kopfes 36 zur Anlage auf der Anschlagfläche 58 des Hohlraumes 54.
Wie aus
Um die Klemmwalzen 33 über ihre Achse 32 in ihrer montierten Lage innerhalb des Führungsschlitzes 73 zu halten, ist im Bereich der Öffnung 74 des Führungsschlitzes eine Verengung mit einer lichten Weite w angebracht, welche kleiner ist als der Durchmesser d der Achse 32 und der inneren lichten Weite k des Führungsschlitzes 73. Dabei ist das Mass k des Führungsschlitzes nur geringfügig grösser als der Durchmesser d, um das Verschieben der Achse 32 innerhalb des Führungsschlitzes zu ermöglichen. Bei der Montage der Klemmwalzen am Druckarm 72 wird die Achse 32 über einen leichten Druck durch die Engstelle der Öffnung 74 in den Führungsschlitz 73 überführt. Durch die Verwendung eines elastischen Materials (z. B. Kunststoff) weicht das Material im Bereich der Öffnung 74 seitlich aus und kehrt nach passieren der Achse 32 wieder in ihre ursprüngliche Lage zurück. Sobald die Achse 32 die Engstelle im Bereich der Öffnung 74 passiert hat, kommt der Stössel 35 bereits zur Anlage auf dem Umfang der Achse 32 und übt unter Einwirkung der Druckfeder F2 eine Druckkraft auf die Achse 32 in Richtung der Öffnung 74 der Aufnahme AN aus. Zwischen der Schulter 37 des Kopfes 36 und der Fläche 58 ist jetzt ein Abstand a vorhanden, damit die Federkraft der Feder F2 zur Wirkung kommt und über den Stössel 35 eine Druckkraft auf den Umfang der Achse 32 ausüben kann. Diese Kraft ist jedoch geringer als die Kraft, welche notwendig ist, um die Achse 32 über die Engstelle mit der Weite w aus der Aufnahme AN herauszudrücken. Damit wird die Achse 32 der Klemmwalzen 33 in einer stabilen Lage im montierten Zustand gehalten, selbst dann, wenn noch kein Gegendruck durch die Saugtrommeln erzeugt wird, mit welchen sie im Betrieb eine Klemmstelle P bilden.The
With a, at the end of the
As schematically in
In a suction zone Z, under the action of a negative pressure applied via a vacuum source SP, an integration of the outer projecting fibers is made and the fiber material is compressed. For this purpose, the respective suction drum is provided with openings O on its periphery, which cooperate with suction slots, not shown, of the
Subsequent to the suction zone Z, a clamping
How out
In order to keep the
Am gegenüberliegenden Ende der Aufnahme AN ist am Druckarm 72 eine Achse 24 befestigt, welche mit einem Mass s beiderseits über die Breite b des Druckarmes 72 hinausragt. Über diese, den Druckarm 72 überragende Achse 24 wird der Druckarm schwenkbar in einem Lagerelement 80 gehalten. Das Lagerelement 80 weist zwei zueinander im Abstand b2 parallel verlaufende Stege T auf, zwischen welchen der Druckarm 72 angeordnet ist und eine Schwenkbewegung ausführen kann. Das Lagerelement 80 ist fest mit dem Träger 20 verbunden. Um den Druckarm 72 ohne spezielles Werkzeug von Hand in die in
Bei der Montage wird der Druckarm 72 über die überstehenden Enden der Achse 24 am jeweils offenen Ende 83 der Führungen 81 eingeführt und unter Überwindung von federbelasteten Riegeln 85 in die in den
Nachdem die Achse 24 während der Überführung in die Betriebsstellung die Stelle der Riegel 85 (wo deren Bolzen 87 in die jeweilige Öffnung 88 hinein ragen) passiert hat, werden die Bolzen 87 unter der Federkraft der Federstäbe 86 wieder in den Bereich der Führungen 81 zurückbewegt. Somit wird der Rückweg für die Achse 24 blockiert und die Achse in ihrer Schwenkstellung fixiert. Da die Bolzen 87 auf der gegenüberliegenden Seite der schrägen Fläche 90 eine gerade Fläche (welche etwa parallel zu Mantelfläche der Achse 24 verläuft) aufweisen, kann die Demontage des Druckarmes nur mit zusätzlichen Handgriffen oder Hilfsmitteln erfolgen. Damit soll ein unbeabsichtigtes Lösen des Druckarmes aus der Schwenkstellung vermieden werden.At the opposite end of the receptacle AN, an
When mounting the
After the
Für die Demontage des Druckarmes werden die Riegel von Hand oder mit zusätzlichen Hilfsmitteln aus ihrer jeweiligen Öffnung 88 herausgedrückt, so dass die Achse 24 die Verriegelungsstelle passieren kann. Nach dem Passieren dieser Stelle kann der Druckarm über die Führungen 81 problemlos entfernt werden. Mit der vorgeschlagenen erfindungsgemässen Ausbildung des Druckarmes der Klemmwalzen erhält man eine kompakte und geschlossene Ausführung, die einerseits gegen Verschmutzungen geschützt ist und andererseits leicht zu montieren und zu demontieren ist ohne dass ein spezielles Werkzeug erforderlich ist.For the disassembly of the pressure arm, the bars are pushed out of their
Die Klemmlinie P zwischen der Saugtrommel 17 und der auf ihr, unter Druck aufliegenden Klemmwalze 33, bildet gleichzeitig einen so genannten "Drehsperrungsspalt", von welchem das Fasergut in der Förderrichtung FS in Form eines komprimierten Garnes FK unter Drehungserteilung einer schematisch gezeigten Ringspinneinrichtung zugeführt wird. Diese ist mit einem Ring 39 und einem Läufer 40 versehen, wobei das Garn auf eine Hülse 41 zur Bildung einer Spule 42 (Kops) aufgewickelt wird. Zwischen der Klemmlinie P und dem Läufer 40 ist ein Fadenführer 43 angeordnet. Der Ring 39 ist an einem Ringrahmen 44 befestigt, welcher während dem Spinnprozess eine Auf- und Abbewegung durchführt.
Um bei einem Fadenbruch zwischen der Klemmlinie P und der Spule 42 das weiterhin über den Klemmpunkt P gelieferte Garn FK absaugen zu können, ist beidseitig des Trägers 20 jeweils ein Absaugrohr 75 befestigt, das mit einer nicht gezeigten Öffnung versehen ist. Das Absaugrohr mündet in den Saugkanal SK des Trägers 20.The nip line P between the
In order to be able to aspirate the yarn FK delivered further via the clamping point P in the event of a broken yarn between the nip line P and the
In den Ausführungsbeispielen der
Wie aus
How out
Wie aus
Die Demontage der Verdichtungseinheit erfolgt in umgekehrter Richtung. Die Rückführung der Klemmwalze 33 nach der Demontage in die in
Claims (13)
- A compacting unit (VM) of a design unit for compacting a fiber composite supplied by a drafting unit (2) of a spinning machine, said design unit being mounted at the outlet of a drafting unit (2), wherein the compacting unit (VM) has a beam (20) on which at least one suction drum (17) equipped with a suction zone (Z) is rotatably mounted on an axle (22) and a clamping roller (33) mounted on the beam (20) is in contact with the suction drum to form a clamping line (P) at the end of the suction zone (Z) under the action of a pressure element (F2) mounted on the beam, characterized in that the clamping roller (33) is mounted so it is rotationally movable on a pressure arm (72) which is equipped with a spring element (F2) and is mounted on the beam (20) so it can pivot over a pivot axis (24).
- The device according to claim 1, characterized in that the spring element (F2) is mounted between the pivot axle (24) of the pressure arm (72) and the axis of rotation (32) of the clamping roller (33).
- The device according to one of claims 1 to 2, characterized in that a stop (64) is provided on the beam (20), protruding into the area of movement of the pressure arm (72) to hold the pressure arm in a top dead center position in which the axle (32) of the clamping roller (33) lies next to a plane (VL) running through the axle (22) of the suction drum (17) and the pivot axis (24) of the pressure arm (72).
- The device according to one of claims 1 to 2, characterized in that the compacting unit (VM) is equipped with two suction drums (17) coaxially opposite one another and each suction drum is paired with a clamping roller (33) wherein the clamping rollers are rotatably mounted on a shared pressure arm (72) on a shared axis (32).
- The device according to claim 4, characterized in that the pressure arm (72) is provided with a U-shaped receptacle (AN) for the axle (32) of the clamping rollers (33) pointing in the direction of the suction drums (17).
- The device according to claim 5, characterized in that the length (la) of the receptacle (AN) is larger in the longitudinal direction of the pressure arm (72) than the diameter (d) of the axle (32) which is guided in the receptacle of the clamping rollers (33) and at least one element (35, 36) acted upon by the pressure element (F2) protrudes into the receptacle within the range of movement of the axle (32) in the longitudinal direction of the receptacle (AN).
- The device according to claim 6, characterized in that the inside clearance (w) of the receptacle (AN) is smaller in the area of its opening (74) than the diameter (d) of the axle (32) of the clamping rollers (33) guided in the receptacle.
- The device according to claim 7, characterized in that the receptacle (AN) is made of an elastic material for example a plastic.
- The device according to one of claims 7 to 8, characterized in that the sum of the maximum protruding distance by which the element (35) can protrude into the receptacle (AN) under spring load and of the diameter (d) of the axle (32) of the clamping rollers (33) situated in the receptacle is larger than the length (la) of the receptacle between an internal end limitation and the region of the opening (74) having a reduced inside clearance (w).
- The device according to any one of claims 1 to 5, characterized in that the pressure arm (72) is provided with an axle (24) arranged across its longitudinal direction, protruding beyond the pressure arm in its width (b1) and the beam (20) has two opposing guides (81) by means of which the pressure arm (72) is guided in being transferred to its pivoted position.
- The device according to claim 10, characterized in that elements (87) are mounted in the area of the guides (81) so they can yield elastically, said elements locking the axle (24) of the pressure arm in the pivoted position on reaching said position.
- The device according to claim 11, characterized in that for dismantling the pressure arm (72), the elements (87) which are in an elastic mount can be transferred into a position in which they cancel the locking of the axle (24) and release the dismantling of the axle via the guides (81).
- The device according to any one of claims 1 to 12, characterized in that the pressure arm (72) is made of plastic and the spring element (F2) is accommodated in an encapsulated space (54) of the pressure arm (72).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH01242/11A CH705308A1 (en) | 2011-07-25 | 2011-07-25 | Compacting device for a spinning machine. |
PCT/CH2012/000143 WO2013013329A1 (en) | 2011-07-25 | 2012-06-29 | Compaction device for a spinning machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2737117A1 EP2737117A1 (en) | 2014-06-04 |
EP2737117B1 true EP2737117B1 (en) | 2016-04-27 |
Family
ID=46545196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12737186.2A Active EP2737117B1 (en) | 2011-07-25 | 2012-06-29 | Compaction device for a spinning machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US9347151B2 (en) |
EP (1) | EP2737117B1 (en) |
JP (1) | JP6080847B2 (en) |
CN (1) | CN103781952B (en) |
CH (1) | CH705308A1 (en) |
WO (1) | WO2013013329A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH706258A2 (en) * | 2012-03-21 | 2013-09-30 | Rieter Ag Maschf | Supporting element for a compression device. |
CH709312A1 (en) * | 2014-02-27 | 2015-08-28 | Rieter Ag Maschf | Compacting device with suction drum. |
CN105821534B (en) * | 2016-04-20 | 2018-11-02 | 嘉兴学院 | A kind of fiber aggregate method, the suction-type spinning repiece method and apparatus of suction-type spinning |
CH713916A1 (en) * | 2017-06-23 | 2018-12-28 | Rieter Ag Maschf | Compression device for a spinning machine. |
Citations (1)
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DE10227463C1 (en) * | 2002-06-20 | 2003-10-16 | Zinser Textilmaschinen Gmbh | Ring spinning machine with stretching mechanism and compression system, has pressure unit extended to mount drive roller of compression system |
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DE19815050B4 (en) * | 1998-04-03 | 2005-09-22 | Saurer Gmbh & Co. Kg | Compression drafting system for a spinning machine |
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DE19815054C5 (en) * | 1998-04-03 | 2007-06-14 | Saurer Gmbh & Co. Kg | Method and spinning machine for producing coregarn |
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DE19908309B4 (en) * | 1999-02-26 | 2010-03-04 | Rieter Ingolstadt Gmbh | Apparatus for feeding a sliver to a drafting system of a route |
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EP1134309B1 (en) * | 2000-03-08 | 2003-12-17 | Zinser Textilmaschinen GmbH | Drawing frame with following condensing zone for a spinning machine |
IT1320209B1 (en) * | 2000-06-21 | 2003-11-26 | Marzoli Spa | GROUP FOR COMPACTING A BAND OF TEXTILE FIBERS STRETCHED IN A UNFILATOIO. |
DE10030500A1 (en) * | 2000-06-21 | 2002-01-03 | Rieter Ag Maschf | Drawing unit has a stage to condense drawn sliver with a smooth perforated film around the condenser aligned with the condenser suction openings |
CN2534202Y (en) * | 2002-01-10 | 2003-02-05 | 山西鸿基实业有限公司 | Roller gathering spinning apparatus for spinning frame |
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-
2011
- 2011-07-25 CH CH01242/11A patent/CH705308A1/en not_active Application Discontinuation
-
2012
- 2012-06-29 JP JP2014521888A patent/JP6080847B2/en active Active
- 2012-06-29 US US14/234,800 patent/US9347151B2/en active Active
- 2012-06-29 WO PCT/CH2012/000143 patent/WO2013013329A1/en active Application Filing
- 2012-06-29 CN CN201280036814.XA patent/CN103781952B/en active Active
- 2012-06-29 EP EP12737186.2A patent/EP2737117B1/en active Active
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DE10227463C1 (en) * | 2002-06-20 | 2003-10-16 | Zinser Textilmaschinen Gmbh | Ring spinning machine with stretching mechanism and compression system, has pressure unit extended to mount drive roller of compression system |
Also Published As
Publication number | Publication date |
---|---|
US20140157551A1 (en) | 2014-06-12 |
JP6080847B2 (en) | 2017-02-15 |
CN103781952B (en) | 2017-05-24 |
US9347151B2 (en) | 2016-05-24 |
EP2737117A1 (en) | 2014-06-04 |
WO2013013329A1 (en) | 2013-01-31 |
CN103781952A (en) | 2014-05-07 |
JP2014521844A (en) | 2014-08-28 |
CH705308A1 (en) | 2013-01-31 |
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