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Maschinenfabrik Rieter Ag patents


Recent patent applications related to Maschinenfabrik Rieter Ag. Maschinenfabrik Rieter Ag is listed as an Agent/Assignee. Note: Maschinenfabrik Rieter Ag may have other listings under different names/spellings. We're not affiliated with Maschinenfabrik Rieter Ag, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Maschinenfabrik Rieter Ag-related inventors


Spinning-mill machine and a method for operating sleeve transport devices on a spinning-mill machine

The spinning-mill machine features a multiple number of cross-winding devices (4) arranged next to each other and on two machine sides located in the longitudinal direction of the spinning-mill machine (1), each of which is provided for winding yarn on sleeves, whereas the cross-winding devices (4) are collected into a multiple number of sections (5.1 to 5.5). Multiple sleeve stacks (7.1 to 7.4) are used for the stockpiling of empty sleeves. ... Maschinenfabrik Rieter Ag

Sleeve for winding with a roving

The invention relates to a sleeve (1) for winding with a roving (2), wherein the sleeve (1) has an elongated sleeve body (3) with three end faces (4), wherein the sleeve (1) is provided with a receptacle on its first end face (4), said receptacle being formed by an undercut (18), and wherein the sleeve (1) is provided with attachment (12) on its second end face (4), and wherein the sleeve body (3) has a contact region (5) intended for contact with a roving (2), and wherein the contact region (5) is formed at least predominately by a paper layer (9), and a capture structure (14) is provided for gripping one end of the roving. It is proposed according to the invention that the paper layer (9) is processed mechanically in at least some sections on its surface that forms the contact region (5), and/or the paper layer (9) is provided with an additive (6) that increases the roughness of the surface in the interior and/or on the surface thereof forming the contact region (5), and/or the paper layer (9) has a surface structure created by overlapping individual paper layers on the surface thereof, forming the contact region (5), in the production of the sleeve body (3).. ... Maschinenfabrik Rieter Ag

Method for doffing for a spinning machine and a corresponding doffer

A method for removing full bobbins from spindles of a ring spinning machine and for setting down empty sleeves on the spindles using a doffer is disclosed. The doffer has a beam and a rotatable gripping device that is mounted on the beam and has a sleeve gripper and a bobbin gripper, wherein the doffer is arranged next to the ring spinning machine. ... Maschinenfabrik Rieter Ag

Method for maintaining spinning units of a spinning machine along with a spinning machine

A method and associated spinning machine for maintaining spinning units of the spinning machine includes a plurality of the spinning units arranged next to one another and at least one maintenance device that is movable along the spinning units to perform maintenance procedures on the spinning units. Prior to maintenance of a spinning unit by the maintenance device, a housing of the spinning unit is opened. ... Maschinenfabrik Rieter Ag

Rotor cup and an open-end spinning rotor with a rotor cup

A rotor cup for spinning a fiber material includes a coupling device to detachably connect the rotor cup to a rotor shaft. The coupling device includes a connecting means for transfer of torque from the rotor shaft to the rotor cup and for axial securing of the rotor cup on the rotor shaft, and a centering means for centering the rotor cup on the rotor shaft. ... Maschinenfabrik Rieter Ag

Maintenance device for the maintenance of work stations of a textile machine and a textile machine

The invention relates to a maintenance device (13a-13e) for servicing adjacent work stations (11) of a textile machine (1), in particular a spinning machine, comprising an operating unit (2a-2e), which features at least one operating component (14) for servicing the work stations (11), and with a guide unit (9), by means of which the maintenance device (13) can be transported on a driving rail (3) along the work stations (11) and which defines a direction of travel (4) of the maintenance device (13). Thereby, the maintenance device (13) can be transported from a maintenance position (i), in which one of the work stations (11) can be serviced by the maintenance device (13a-13e), into an inspection position (ii), in which the maintenance device (13a-13e) can be inspected. ... Maschinenfabrik Rieter Ag

Cleaning device for cleaning a rotor disk of a spinning rotor

A cleaning device (1) for cleaning a rotor disk (2) of a spinning rotor (3) features a cleaning head (4), which features at least one cleaning element (5a, 5b) for cleaning the spinning rotor (3), and one receptacle (6), in which the cleaning head (4) is mounted and which can be fed to the spinning rotor (3) for cleaning. The cleaning head (4) features at least one bearing area (7), the longitudinal direction of which defines an axial direction (ar) of the cleaning head (4). ... Maschinenfabrik Rieter Ag

Textile machine and method for operating same

A method and associated textile machine are provided to produce a roving having a protective twist from a fiber bundle fed to a consolidating means. The produced roving is wound with a winding device onto a tube arranged at a winding position. ... Maschinenfabrik Rieter Ag

Combing machine

The invention relates to a combing machine (1) having at least one combing unit (x1-x16) for combing out fiber material (z) supplied to the combing unit in a direction of conveyance (f), wherein the combing unit has a gripper unit (10) with a lower gripper plate (2) and an upper gripper plate (3) mounted so that it is movable relative to the lower gripper plate, and the lower gripper plate (2) has on its top side a feed trough (19) with an upstream feed area (zf), wherein a rotatably mounted feed cylinder (9) protrudes into the feed trough, the fiber material (z), which is connected to the feed trough, being supplied to a gripper lip (5) mounted on the front end of the lower gripper plate (2). To improve the accessibility to the top side of the lower gripper plate and the combing cylinder mounted rotatably beneath the gripper, it is provided that a rear guide area (hf) is adjacent to the feed area (zf) to the feed trough (19)—in a direction opposite the direction of conveyance (f) of the fiber material (z)—wherein the feed area (zf) and the rear guide area (hf) from an obtuse angle β, and the rear guide area (hf)—as seen in the direction of conveyance (f) of the fiber material (z)—runs with a falling inclination at an angle α≧35° to a horizontal plane (e).. ... Maschinenfabrik Rieter Ag

Arrangement of combing cylinders in a combing machine

The invention relates to a combing machine having a plurality of combing heads (10), wherein each combing head (10) has a nipper assembly (18) with a pivotably mounted upper nipper plate (22) and a rotationally fixed lower nipper plate (20) and each has a combing cylinder (16) which is mounted in a rotationally fixed mount on a common shaft (12). A movement of the upper nipper plate (22) is controlled by a rotational angle position of the combing cylinder (16) by means of a control unit (29). ... Maschinenfabrik Rieter Ag

Textile machine for producing roving and method for starting the roving production on a corresponding textile machine

The invention relates to a textile machine for producing roving (1), comprising at least one consolidating means, by which a roving (1) having a protective twist can be produced from a fiber bundle (3) that is fed to the consolidating means, and comprising a winding device (5), arranged downstream of the consolidating means in a transport direction (t) of the roving (1), for winding the roving (1) produced by the consolidating means onto a tube (7) which can be driven by a tube drive (6). The textile machine is characterized in that it has an arrangement by which the roving (1) leaving the consolidating means during a start of roving production can be brought into contact with the tube (7), wherein said arrangement comprises a movably mounted suction unit (8) with a suction opening (9), by means of which the roving (1) can be sucked up during ongoing roving production, wherein said arrangement comprises means by which the roving (1) running between the consolidating means and the suction opening (9) can be brought into contact with the tube (7) during ongoing roving production, and in that said arrangement comprises means by which the roving (1), during ongoing roving production, can be cut such that the section (19) of the roving (1) that is grasped by the suction unit (8) can be conveyed away by the suction unit (8) and the section of the roving (1) running between the consolidating means and the tube (7) can be wound onto the tube (7). ... Maschinenfabrik Rieter Ag

Textile machine for the production of roving and method for operating the same

The invention relates to a method for operating a textile machine which serves to produce roving (1), wherein during roving production a roving (1) having a protective twist is produced by means of at least one consolidating means from a fiber bundle (3) that is fed to the consolidating means, wherein the roving (1) produced by the consolidating means is wound by a winding device (5) onto a tube (7), wherein the roving (1) during the winding process is guided by means of a guide element (23) which is arranged between the consolidating means and the tube (7), and wherein the guide element (23) exerts a decelerating effect on the roving (1). According to the invention, it is proposed that the decelerating effect is adapted during operation of the textile machine in such a way that it is lower during a start procedure, while the roving (1) leaving the consolidating means is being brought into contact with a tube (7), preferably an empty tube (7), and/or during a tube change, while a wound tube (7) is being replaced by an empty tube (7), than during a winding process that takes place between the start procedure and the tube change. ... Maschinenfabrik Rieter Ag

Method for operating a textile machine, and textile machine for producing rovings

The invention relates to a method for operating a textile machine that serves for producing roving (2), wherein during normal operation, a fiber bundle (4) is supplied to at least one consolidating means of the textile machine, wherein a roving (2) having a protective twist is produced from the fiber bundle (4) by means of the consolidating means, wherein, after leaving the consolidating means and by means of a winding device (5) arranged downstream of the consolidating means in a transport direction (t) of the roving (2), the roving (2) is wound onto a tube (6), and wherein a sensor system (9) monitors whether a roving (2) is being produced by the consolidating means and/or whether the roving (2) produced by the consolidating means is being wound onto the tube (6). In accordance with the invention it is suggested that in the event that it is detected by means of the sensor system (9) that no roving (2) is being produced by the consolidating means or that the roving (2) produced by the consolidating means is not being wound onto the tube (6), an interruption of the of the normal operation takes place, that the tube (6) already partly loaded with roving (2) by the winding device (5) prior to the interruption in normal operation is replaced by an empty tube (6) during a tube changing process, that a start process is carried out in which roving (2) produced by the consolidating means after start-up of the consolidating means is brought into contact with the empty tube (6), and that the roving (2) produced by the consolidating means after the start process is wound onto the tube (6) and normal operation is resumed. ... Maschinenfabrik Rieter Ag

Spinning preparation machine

The invention relates to a spinning preparation machine having at least one consolidating means for producing a roving (3) that has a protective twist and that is made of a fiber bundle (4) supplied to the consolidating means, having a drafting system (5) that is arranged upstream of the consolidating means in a running direction (l) of the roving (3) and that serves for drafting the fiber bundle (4) before the latter enters the consolidating means, having winding device (6) that is arranged downstream of the consolidating means in the aforesaid running direction (l) and that serves for winding the roving (3) onto a tube (7), and having a movably mounted traversing element (8) arranged in the region of the winding device (6) that serves for guiding the roving (3) while the latter is being wound onto the tube (7). In accordance with the invention it is suggested that, in a side view of the spinning preparation machine (1), the consolidating means is arranged vertically between at least one feed roller (9) of the drafting system (5) and the traversing element (8) mounted vertically therebelow, wherein the feed roller (9) and the traversing element (8), in the aforesaid side view, are arranged on the same side of the consolidating means so that when the spinning preparation machine (1) is operating, the roving (3) experiences a change in direction after exiting the consolidating means and prior to being wound onto the tube (7).. ... Maschinenfabrik Rieter Ag

04/06/17 / #20170096752

Spinning preparation machine

The invention relates to a spinning preparation machine having at least one consolidating means for producing a roving (3) that has a protective twist and that is made of a fiber bundle (4) supplied to the consolidating means, having a drafting system (5) for drafting the fiber bundle (4) before the latter enters the consolidating means, wherein the drafting system (5) is arranged upstream of the consolidating means in a transport direction (t) of the drafting system (5), having a guide (6) arranged upstream of the drafting system (5) in the aforesaid transport direction (t) for guiding the fiber bundle (4) between a container (7) providing the fiber bundle (4) and the drafting system (5), wherein the guide (6) has a feed segment (8) facing away from the drafting system (5) for the fiber bundle (4) originating from the container (7) when the spinning preparation machine (1) is in operation, and has a delivery segment (9) facing the drafting system (5) for the fiber bundle (4), wherein the spinning preparation machine (1) has a winding device (10) for winding the roving (3) onto a tube (11), and wherein the spinning preparation machine (1) has a tube transport device (12) for providing empty tubes (11) and/or for removing tubes (11) loaded with roving (3) by means of the winding device (10). In accordance with the invention it is suggested that the tube transport device (12) comprises at least one conveyor (13) for transporting empty tubes (11) and/or tubes (11) loaded with roving (3), wherein the conveyor(s) (13), in a top view of the spinning preparation machine (1), are arranged at least in part between the feed segment (8) of the guide (6) and the drafting system (5).. ... Maschinenfabrik Rieter Ag

04/06/17 / #20170096316

Changing element for a spinning machine, and spinning machine equipped with said changing element

The present invention relates to a traversing element (1) for a spinning machine (26), wherein the traversing element (1) comprises a guide segment (2) by means of which a roving (3) may be guided in the region of a surface of a tube (4) or of a roving bobbin (5), and wherein the traversing element (1) comprises a support segment (6) via which it may be connected to a support member (7) of the spinning machine (26). According to the invention it is suggested that the traversing element (1) comprises at least one cavity (8) that is closed with respect to the outside and is partially filled with a liquid (9), wherein heat that occurs in the region of the guide segment (2) due to friction between the guide segment (2) and the roving (3) guided by the guide segment (2) when the traversing element (1) is operating may be absorbed by the liquid (9). ... Maschinenfabrik Rieter Ag

03/23/17 / #20170081789

Channel plate adapter and open-end spinning device with a channel plate adapter

The invention relates to a channel plate adapter for use in a cover of a rotor housing of an open-end spinning device, whereas a rotor (2) is rotatably arranged in the rotor housing, with an output fiber channel (3), which conveys fibers (4) to the rotor (2), whereas the fibers (4) enter at an inlet side (5) of the output fiber channel (3), from which the fibers (4) exit at an outlet side (6) of the output fiber channel (3) to the rotor (2). In accordance with the invention, the output fiber channel (3) features a bend (7) between the inlet side (5) and the outlet side (6), whereas the bend (7) bends a second section (9) of the output fiber channel (3), which is formed between the bend (7) and the outlet side (6) in respect of a first section (8) of the the output fiber channel (3), which is formed between the first bend (7) and the inlet side, against the direction of rotation (dr) of the rotor (2). ... Maschinenfabrik Rieter Ag

03/16/17 / #20170073851

Compressing device having a suction drum

An apparatus (vm) for compacting a fiber sliver (v) on a spinning machine, having a carrier (16) which has a receptacle (19) for a bolt (36), having a rotatably mounted suction drum (14) which has a closed end face (34) and an open end face (35), and a bearing element (k) is disposed in the region of the closed end face (34), the suction drum (14) being rotatably mounted on an end section of the bolt (36) by means of said bearing element, so that the bolt (36) protrudes out of the open end face (35) of the suction drum (14). In order to permit simple and rapid assembly and/or disassembly of the suction drum (14) during the entire running time of the compaction apparatus (vm), the suction drum (14) is affixed axially by means of the bearing element (k) with the bolt (36), as seen in its axial direction, so that the suction drum (14) and the bolt (36) form a separate unit of the apparatus (vm) and at least one fastening means (45) by means of which the bolt (36) is releasably fastened in the receptacle (19), is provided.. ... Maschinenfabrik Rieter Ag

03/16/17 / #20170073850

Device for cleaning roller surfaces of a drafting arrangement

The invention relates to an apparatus on a spinning preparation machine having a drafting system (1) for processing a fiber material (g) which is moved by the drafting system in the direction of conveyance (f), including a plurality of roller pairs arranged one after the other with upper rollers and lower rollers (2, 3; 4, 5; 6, 7), having at least two elongated stripping devices (9) which are each in contact with one of the upper rolls (3, 5, 7) along their stripping edges (k) for removing dirt and other contaminants, and having a suction hood (ah) which is mounted above the stripping devices (9) and is connected to a vacuum source (u). To avoid accumulations of components that have been stripped off the rollers in the area of the stripping devices and to improve the suction effect, it is proposed that each stripping device (9) be mounted in its own suction channel (11, 12, 13), wherein the stripping edge (k) of the respective stripping device (9) protrudes beyond its suction channel in the area of a first opening (o1), and the individual suction channels are each mounted on a bottom wall (8) provided with openings (b1, b2, b3), wherein the respective suction channel (11, 12, 13) is provided with a second opening (o2) opposite the first opening (o1), this second opening being opposite one of the openings (b1, b2, b3) of the bottom wall (8), wherein the suction hood (ah) protrudes beyond the openings (b1, b2, b3) of the bottom wall and is mounted on the side of the bottom wall (8) which is opposite the suction channels (11, 12, 13).. ... Maschinenfabrik Rieter Ag

03/02/17 / #20170058434

Support disk with a crowned running surface

A support disk for a suspension for a spinning rotor (2) of an open-end spinning device features a base body (8) and a thrust ring (9) with a running surface (10) attached on an outer circumference of the base body (8), whereas the running surface (10) has a crowned outer contour in the axial section. The running surface (10) features at least two partial sections (11), between which at least one groove-shaped recess (12, 14, 16) is formed. ... Maschinenfabrik Rieter Ag

02/02/17 / #20170029984

Support of a flexible bend in a revolving flat card

The invention relates to a support of a flexible bend (7) in a revolving flat card (1) comprising a cylinder (4) and a cylinder axis. The support comprises at least three bearing points (20), each of which has a bearing bolt (21) and an adjusting lever (26). ... Maschinenfabrik Rieter Ag








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