• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Circular loom (1) with a main shaft (14), with a control disc (13) which is connected to the main shaft (14), with a plurality of control levers (15), which are connected to the control disc (13), with Kettfadenhubelementen ( 16) connected to the control levers (15), each control lever (15) being connected to an upper follower roller (17) and a lower follower roller (18), the upper follower roller (17) being connected to an upper control surface (19). at the top of the control disc (13) and the lower follower roller (18) with a lower control surface (20) on the underside of the control disc (13) is in communication.
    公开号:AT517087A4
    申请号:T50526/2015
    申请日:2015-06-23
    公开日:2016-11-15
    发明作者:Reinhold Hehenberger；Philipp Hehenberger
    申请人:Reinhold Hehenberger；
    IPC主号:
    专利说明:

    The invention relates to a loom with a main shaft, with a control disk, which is connected to the main shaft, with a plurality of control levers, which are connected to the control disk, with Kettfadenhubelementen which are connected to the control levers.
    Such a circular loom is known for example from EP 1 967 623. The circular loom has an eccentric plate which is mounted centrally on a journal and can be driven by it. The eccentric plate is provided with two Hubsteuerkurven, which are in operative connection with different length control levers. To form a shed grant the control lever the Kettfadenhubmitteln in pairs an opposite up and down alternating movement. For this purpose follower rollers are attached to the ends of the control lever, which run on the corresponding control cam.
    In the prior art, the follower rollers are arranged substantially in the horizontal main plane of the eccentric disc, so that the axes of rotation of the follower rollers are at different distances in the radial direction to the axis of rotation of the eccentric disc. The pairs of rollers are periodically guided radially outwards or inwards along the control curve. This shaft movement of the roller pairs is converted into a tilt of the control lever, with which the Kettenfadenhubmittel be actuated. The control levers extend with respect to the axis of rotation of the eccentric disc substantially in the radial direction of the eccentric plate to the outside.
    However, the known arrangement of the control lever with the follower rollers brings with it various disadvantages. On the one hand, the horizontal or radial arrangement of the follower rollers has a comparatively large space requirement, which limits the number of roller pairs for a given diameter of the reed. For precise formation of the shed the highest possible number of pairs of rolls would be desirable. Moreover, it is disadvantageous in the prior art that the roller pairs are moved at high frequency in the radial direction with respect to the machine shaft. Due to the acceleration and deceleration moments that occur, the energy required for operation of the circular loom increases. In the prior art, significant speed differences of, for example, 15% are recorded during operation. As a result, the bearing of the control lever can be exposed to high loads in the tangential direction. In addition, the wear is comparatively high. Furthermore, the noise is disadvantageous.
    In DE 29 21 988 a circular loom is also described. In a first embodiment, each pair of shafts is actuated to hold warp threads open with two pivoting levers. At the free end of each pivot lever, a roller is rotatably mounted loosely, which rolls in Nutrillen a cam. The pivot levers extend in the tangential direction to the Nutrillen the cam. However, this design is structurally complex, allows comparatively low speeds and brings a high energy demand with it. Furthermore, the noise is disadvantageous. In addition, a further embodiment is described, in which two coaxially arranged cam plates are provided, in which engage tangential pivot lever. The pivot levers are pressed by springs to the cams. This embodiment is disadvantageous in that the springs must be designed to hold the rollers on the cam. This increases the wear, requires more energy and limits the achievable speeds.
    Accordingly, the object of the present invention is to eliminate or mitigate the disadvantages of the prior art. The invention is therefore in particular for the purpose of creating a constructive simple circular loom of the type mentioned, in which the shed can be formed precisely and with low energy consumption even at high frequencies.
    This object is achieved by a circular loom with the features of claim 1.
    According to the invention, each control lever is connected to an upper follower roller and a lower follower roller, the upper follower roller having an upper control surface at the top of the STEU erscheibe and the lower follower roller with a lower control surface on the underside of the control disk is in communication. Thus, the pairs of follower rollers on the control levers formed respectively of an upper follower roller and a lower follower roller are movable up and down approximately in a vertical direction as the control disk is rotated by the main shaft. The control disk or eccentric plate has, based on the operating state of the circular loom, an upper control surface on the upper side and a lower control surface on the underside of the control disk. The circular loom preferably has a single control disk on which the upper or lower control surface is formed. The center of the upper follower roller is thus located above the center of the lower follower roller, with the control wheel with the upper control surface and the lower control surface between the upper follower roller and the lower follower roller. Accordingly, the pairs of follower rollers are each arranged standing. By attaching the upper and lower follower or roller to the same control lever, the distance between the axes of the upper follower roller and the lower follower roller on each control lever in the driven state of the control disk is substantially constant. Preferably, each control lever on a fork element, wherein the upper roller is mounted on one leg of the fork element and the lower roller on the other leg of the fork element. The upper control surface or the lower control surface has an undulating course with wave crests and wave troughs with respect to an imaginary horizontal center or symmetry plane of the control disk. Preferably, the wall thickness of the control disk between the upper and lower control surface in the circumferential direction or in the radial direction is substantially constant. Preferably, the control lever is pivotally mounted about a stationary, in particular horizontal, pivot axis. In the driven state of the control disk, the pairs of follower rollers are pivoted or tilted periodically about the pivot axes of the control lever. With respect to the control disk, the movement of the pairs of follower rollers is thus composed of a vertical up and down movement and a movement in the tangential or in the circumferential direction of the control disk. The up and down movement of the pairs of follower rollers is implemented via the pivot axes of the control lever in a lifting movement of the Kettfa denhubelemente, with which the shed is formed to carry out the protection during operation. The Kettfadenhubelemente preferably have Ösenbänder, which rotate around an upper and a lower pulley. Alternatively, the Kettfadenhubelemente on strands. The embodiment of the invention has the advantage that the space required for the arrangement of the follower rollers in a stationary position for a given radius of the control disk and diameter of the follower rollers can be reduced. Advantageously, therefore, the number of pairs of follower rollers on the circumference of the control disc, which is preferably substantially circular in plan view, can be increased. As a result, the shed for carrying out the protection can be made even more precise. According to a particularly preferred embodiment, the upper and lower follower rollers are arranged at substantially the same distance in the radial direction of the main shaft. However, the upper roller can also be arranged offset in the radial direction to the lower roller. Advantageously, a periodic radial acceleration or deceleration of the follower rollers in the driven state of the control disk can be largely avoided. As a result, the energy consumption and wear during operation of the circular loom can be substantially reduced. Furthermore, the noise development can be reduced.
    According to a particularly preferred embodiment, the control levers are each arranged substantially tangentially to the control disk. Accordingly, control levers extend approximately perpendicular to the connecting line between the contact points of the follower rollers on the circumference of the control disk and the center of the control disk, which is connected to the main shaft of the circular loom. Depending on the design of the control lever, a certain deviation from an exactly tangential orientation of the control lever can be provided. In any case, it is essential in this embodiment that the control levers have a greater extent in the tangential direction than in the radial direction. In the prior art, the control levers usually extend in the radial direction from the periphery of the control disk to the outside. The arrangement of the control lever in the tangential direction, the space required for a given footprint can be significantly reduced. As a result, larger rollers or a larger number of pairs of rollers can be used. Furthermore you can
    Speed differences in the operation of the rollers are lowered, whereby the wear of the rollers can be kept low. In addition, the rollers are less deflected during operation. Furthermore, the ratio between the load arm and the power arm of the control lever can be improved. For this purpose, a pulley was used in the prior art, which can be dispensed with in the present circular loom. Finally, it is advantageous that tilting forces on the control lever can be avoided, which occur in the conventional radial arrangement of the control lever in the prior art.
    Moreover, it is favorable if the axes of rotation of the upper and lower follower rollers on each control lever extend substantially in the radial direction of the control disk. Accordingly, the axes of rotation of the follower rollers are aligned substantially in the direction of the center point of the control disk.
    With regard to a tangential orientation of the control lever, it is advantageous if each control lever is mounted pivotably about a pivot axis which extends substantially in the radial direction of the control disk. The pivot axis of the control lever, which may be provided on a bearing block, need not be oriented exactly in the radial direction. It is essential in this embodiment, however, that the pivot axis of the control lever is formed more radially than tangentially with respect to the control disk. Preferably, the pivot axis of the control lever is arranged at an angle between 5 ° and 20 °, in particular between 7 ° and 15 °, preferably substantially 8.5 °, to the radial direction.
    Furthermore, it is favorable if the pivot axis of the control lever is arranged substantially parallel to the axes of rotation of the upper and lower follower rollers. Depending on the design of the control lever, the pivot axis of the control lever can also be arranged at an acute angle to the axes of rotation of the upper and lower follower roller.
    To form the shed, it is advantageous if each control lever has a power arm connected to the control disk and a load arm connected to the Kettfadenhubelement, wherein the load arm to at least 2.6 times, in particular by at least 4 times, longer than the power arm is. If the control lever is arranged substantially tangentially to the outer periphery of the control disk, this lever ratio can be realized in the prevailing space conditions in a particularly simple manner. It is advantageous that the deflection of the follower rollers can be reduced. In addition, the space within the reed can be optimally used. Furthermore, the control lever can be designed particularly simple. In a preferred embodiment, the power arm is disposed at an obtuse angle to the load arm.
    In the circular loom described above, preferably more than 36, preferably at least 42, control levers are provided, which are connected to a corresponding number of Kettfadenhubelementen, wherein the control levers are each arranged substantially tangentially to the control disk.
    The invention will be explained below with reference to exemplary embodiments illustrated in the drawing, to which, however, it should not be restricted. In the drawing shows:
    Fig. 1 is a perspective view of a circular loom according to the prior art;
    Fig. 2 is a perspective view of parts of a circular loom according to the invention, in which a plurality of control levers are arranged tangentially on the circumference of a control disk, the one ends of the control lever by means of vertically stacked follower rollers in a control cam of the control disk engage and the other ends of the control lever Kettenfadenhubelementen are connected;
    FIG. 3 shows the parts of the circular loom according to FIG. 2 in plan view; FIG.
    FIG. 4 shows the parts of the circular loom according to FIG. 2, 3 in side elevation; FIG. and
    Fig. 5, the parts of the circular loom according to FIG. 2 to 4 in the crack.
    Fig. 1 shows a circular loom 1 according to the prior art. The circular loom 1 is set up in a known manner for the production of tubular fabrics 2. The circular loom 1 comprises a woven zone 4 arranged in a frame 9, in which the fabric 2 is woven, and a fabric withdrawal device 8 which is arranged above the weaving zone in the described embodiment and which pulls off the fabric produced in the weaving zone 4 under tension. This is continued in the direction of the arrow, for example, for winding on a roll. The fabric withdrawal device 8 is driven by an electric motor 5 via a transmission linkage 11. Furthermore, two Kettfadenzufuhren 7 are arranged opposite each other on both sides of the circular loom 1, via which two Kettfadenscharen 3 are fed from arranged on coil stands 12 coils 6. For reasons of clarity, only one coil stand 12 is shown. Such circular looms 1 are well known in the art, so that more detailed explanations can do so unnecessary.
    In Figs. 2 to 5, the weaving zone 4 of a circular loom 1 according to the invention is shown, which may have the features described above, will be discussed below mainly to the differences from the known design.
    The circular loom 1 has a single control or eccentric disc 13, which with a main shaft 14 (in Fig. 2 schematically indicated) of the circular loom 1 is rotatably connected. The axis of rotation of the control disk 13 extends substantially in the vertical direction through the center of the control disk 13. The circular loom 1 further has a plurality of control levers 15, wherein in the drawing, for better clarity, only two control levers 15 are shown. The one ends of the control lever 15 are in operative connection with the control disk 13. The other ends of the control levers 15 are connected to Kettfadenhubelementen 16 for lifting the warp threads, the course of the warp threads is only hinted at. These warp threads are divided into two sets of warp yarns arranged all around and are withdrawn in a known manner from groups of warp thread spools not shown in detail. To form the
    Webfaches is then raised one of these groups, while the other from the height of the weaving level is guided by the so-called tray exchange movement down, so that a Kettfadenoberfach and a Kettfadenunterfach arises. In this so-called weaving or walking compartment of the shooter is then passed with a weft yarn coil not shown here on a substantially horizontal circular path. Due to the circular movement of the contactor, the weft thread unwound from the weft thread bobbin is delivered to the fabric edge of the tubular fabric produced, so that this weft thread can be woven into the fabric. The tubular fabric can then be pulled up and folded into a flat tubular fabric. As shown schematically in FIGS. 2 to 5, the warp thread lifting elements 16 are formed by eyelet strips, alternatively also stranded strips, which each have an upper one. The warp thread lifting elements 16 are arranged circularly in a plurality around the main shaft 14 of the circular loom 1 and a lower guide roller are guided. The eyelet bands carry Fadenösenmittel, through each of which a warp thread of one or the other Kettfadenschar is pulled. By actuating the Kettfadenhubelemente 16 by means of the control lever 15, the tray changing movement described above is achieved.
    As can be seen from FIGS. 2 to 5, each control lever 15 is connected to an upper follower roller 17 and a lower follower roller 18. For this purpose, each control lever 15 on the side of the control disk 13, a rigid fork member 15a, wherein on one leg of the fork member 15a, the axis of the upper follower roller 17 and the other leg of the fork member 15a, the axis of the lower follower roller 18 is mounted. For the purposes of this disclosure, the terms "up" and "down" refer to the operating position of the circular loom 1 in which the main shaft 14 is disposed substantially vertically. The upper follower roller 17 runs on an upper control surface 19 on the radially outer edge of the top of the control disk 13. The lower follower roller 18 runs on a lower control surface 20 at the radially outer edge on the underside of the control disk 13. In the embodiment shown, the control disk 13 a substantially constant wall thickness along its extent. To form the upper 19 and lower control surface 20, the control disc 13 in vertical section a corrugated profile with wave troughs and wave crests on.
    For better clarity, only two control levers 15 and a corresponding number of Kettfadenhubelementen 16 are shown. Preferably, more than 36, in particular more than 42, control lever 15 and a corresponding number of pairs of follower rollers 17, 18 provided on the control disk 13 to move up and down a corresponding number of Kettfadenhubelementen 16 to open the shed.
    As can be seen from FIGS. 2 to 5, the individual control levers 15 are each arranged essentially tangentially to the control disk 13. The axes of rotation of the upper 17 and lower follower rollers 18 on each control lever 15 extend substantially in the radial direction of the control disk 13. Each control lever 15 is pivotably mounted about a pivot axis 21 (see FIG. 3), which extends substantially in the radial direction of the Control disc 13 extends. To form the pivot axis 21 of the control lever 15, a bearing block 22 is provided. The pivot axis 21 of the control lever 15 is arranged substantially parallel to the axes of rotation of the upper 17 and lower follower roller 18.
    To illustrate the radial orientation of the axes of rotation of the upper 17 and lower follower roller 18 are shown in Fig. 2 with dashed lines radial rays starting from the center of the control disk 13.
    As can be seen in particular from FIGS. 1 to 3, each control lever 15 has a force arm 23 connected to the control disk 13 and a load arm 24 connected to the warp thread lifting element 16. The load arm 24 has a greater longitudinal extent than the force arm 23 by at least 3.5 times, in particular by at least 4 times.
    权利要求:
    Claims (7)
    [1]
    claims:
    A circular loom (1) having a main shaft (14), a control disc (13) which is connected to the main shaft (14), a plurality of control levers (15) which are connected to the control disc (13), with Kettfadenhubelementen ( 16) connected to the control levers (15), characterized in that each control lever (15) is connected to an upper follower roller (17) and a lower follower roller (18), the upper follower roller (17) having an upper control surface (19) at the top of the control disc (13) and the lower follower roller (18) with a lower control surface (20) on the underside of the control disc (13) is in communication.
    [2]
    2. loom according to claim 1, characterized in that the control lever (15) are each arranged substantially tangentially to the control disc (13).
    [3]
    3. loom according to claim 1 or 2, characterized in that the axes of rotation of the upper (17) and lower follower roller (18) on each control lever (15) extend substantially in the radial direction of the control disk (13).
    [4]
    4. circular loom according to one of claims 1 to 3, characterized in that each control lever (15) about a pivot axis (21) is pivotally mounted, which extends substantially in the radial direction of the control disk (13).
    [5]
    5. loom according to one of claims 1 to 4, characterized in that the pivot axis (21) of the control lever (15) is arranged substantially parallel to the axes of rotation of the upper (17) and lower follower roller (18).
    [6]
    6. loom according to one of claims 1 to 5, characterized in that each control lever (15) has a control disc (13) connected to the power arm (23) and a Kettfadenhubelement (16) connected to the load arm (24), wherein the load arm (24) is at least 2.6 times longer, in particular at least 4 times longer than the force arm (23).
    [7]
    7. loom according to one of claims 1 to 6, characterized in that more than 36, preferably at least 42, control levers (15) are provided, which are connected to a corresponding number of Kettfadenhubelementen (16), wherein the control lever (15) respectively are arranged substantially tangentially to the control disc (13).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2872684B1|2016-05-11|Device for the intermediate storage of band-like weft material for a weaving machine and weaving machine having such a device
    AT517087B1|2016-11-15|Circular loom with a main shaft
    CH663227A5|1987-11-30|ROUND WEAVING MACHINE.
    DE3323141C2|1988-09-29|
    AT504348B1|2008-05-15|circular loom
    EP2915767B1|2017-01-04|Workstation of a textile machine with a paraffinization device
    CH660758A5|1987-06-15|DEVICE FOR REGULATING THE TENSION AND FOR MONITORING THE CHAIN THREADS ON A ROTARY WEAVING MACHINE.
    AT507299A4|2010-04-15|DEVICE FOR TOUCH-FREE DRIVE OF A PROTECTION IN THE RIET OF A ROUNDWEB MACHINE
    DE2247474A1|1973-06-07|METHOD AND DEVICE FOR COMPENSATING THE THREAD TENSION DIFFERENCE BETWEEN TWO YARNS ON A DRIVELY SPINDLE WINDING DEVICE
    DE2444411B2|1977-07-14|TAPE WOVEN MACHINE WITH MULTIPLE STRANDED SHAFT
    CH663226A5|1987-11-30|DEVICE FOR MONITORING THE Weft Threads On A ROUND WEAVING MACHINE.
    DE3317267A1|1983-11-17|THREAD FEEDER
    DE2733525C2|1985-12-12|Weft thread conveying device for shuttleless looms
    EP3662100B1|2021-01-27|Reed and circular loom
    DE1535328C3|1975-12-18|Device for forming a fabric edge
    DE739692C|1943-10-02|Device for the temporary shutdown of heald frames in round looms
    CH638573A5|1983-09-30|Weft tensioning device.
    EP3431643B1|2020-09-02|Circular loom
    CH659834A5|1987-02-27|Circular weaving machine
    WO2008092802A1|2008-08-07|Device for positioning the threads inside the section width of a warping section and warping method
    DE56949C|Machine for the production of an insulating coating on electrical conductors
    AT15480U1|2017-10-15|circular loom
    EP3438336A1|2019-02-06|Shuttle and circular loom
    EP3438335A1|2019-02-06|Reed and circular loom
    WO1999051805A2|1999-10-14|Drive device for the parting shafts of circular looms
    同族专利:
    公开号 | 公开日
    AT517087B1|2016-11-15|
    WO2016205849A1|2016-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2921988C2|1979-05-30|1981-09-24|Windmöller & Hölscher, 4540 Lengerich|Device for shedding in circular looms|
    CN201634829U|2010-04-06|2010-11-17|浙江群力塑料机械有限公司|Small-cam circular weaving machine|
    CN201915206U|2010-12-11|2011-08-03|黄美昌|Small-cam twelve-shuttle circular loom|EP3431643B1|2017-07-21|2020-09-02|Starlinger & Co Gesellschaft m.b.H.|Circular loom|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50526/2015A|AT517087B1|2015-06-23|2015-06-23|Circular loom with a main shaft|ATA50526/2015A| AT517087B1|2015-06-23|2015-06-23|Circular loom with a main shaft|
    PCT/AT2016/050221| WO2016205849A1|2015-06-23|2016-06-23|Circular weaving machine|
    [返回顶部]