• 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:
    Mechanical device disposed behind the heddle frames of a loom for increasing the weft density in cloth weave fabrics, constituted by three parallel rollers situated horizontally at the vertices of a triangle, of which the rear roller separates the two equal sets of warp yarns while the other two front rollers are located very close together and act as an outlet guide for said two equal sets of warp yarns. The three rollers are rigid at their ends with two lateral support plates which are made to reciprocate, by means of connecting rods connected eccentrically to the loom drive shaft, about a horizontal rotational axis which lies in the center plane of the shed formed by said two sets of warp yarns, and passes in proximity to the two front thread guide rollers and at an equal distance therefrom. The three rollers are connected rigidly together by intermediate support plates.
    公开号:SU1022665A3
    申请号:SU803211169
    申请日:1980-11-25
    公开日:1983-06-07
    发明作者:Кораин Лучано
    申请人:Нуово Пиньоне С.П.А. (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the textile industry, in particular to weaving machines for obtaining dense fabrics. . . A device is known for compacted weft threads on a weaving machine, containing a group of parallel horizontal rollers installed between the tumbler frames and your machine, the separator of which is installed first in the feed direction of the main threads, and the guide roller, bending around the top of the main threads, is installed behind the separating roller and the side roller holders connected by a transverse horizontal axis can be rotated around it from a lever-eccentric drive. Cl3. . A disadvantage of the known device is the complexity of the design, large size, low reliability. The purpose of the invention is to eliminate these disadvantages. To this end, in the weft-sealer on a weaving machine, containing a group of three horizontal rollers installed between the diaper strap frames and a new machine, the separation of which is installed first in the feed direction of the main threads, and the guide roller above the main threads mounted behind the separating roller, and the side holders of the rollers connected by a horizontal axis with the possibility of rotation around it from the lever-eccentric drive, the third roller mounted above the guide roller to bend it from the bottom with the main threads symmetrically with respect to the machine filling plane, with the rollers fixed in the side holders rigidly and the transverse axis connecting the holders / located in the plane of the machine refueling. FIG. 1 shows a weaving sheet with a device for compacting weft yarns, a general view; in fig. 2 cross section of the machine. The loom contains 1 with the main threads 2, a rock 3, simulated with the possibility of swinging and brackets 4, gripping on the machine frame, hedging frames 5 and b, arranged vertically and dividing the main threads into two equal weights 7 and 8, forming mouth of E for weft yarn laying. The burdo 10 serves to bring the thread to the edge 11 of the fabric being formed 12. In addition, the machine includes a pulling roller 13, guide rollers 14 and. roller 15 for receiving the finished fabric 12, Mechanical device 16 for compaction of the thread is installed in the back of the weaving loom between heels of frames 5 and 6 and warp 1 and consists of three parallel rollers 17-19, arranged horizontally at the apex of the triangle perpendicularly nit m bases of the two groups 7 and 8. The rear roller 17 plays the role of a separating element, i.e. it separates from each other two equal groups of 7 and 8 warp threads, which are passed above and below the specified roller, respectively, while the other two front rollers 18 and 19 are located very close to each other and act as an output guide for the two equal ones. Groups 7 and 8 warp threads. The ends of the three rollers 17-19 are rigidly mounted on two lateral support plates 20 (only one lateral support plate is shown), which are suspended on. rotating loops x 21, rigidly connected with the said plates, on the fixed design 22 of the loom relative to the horizontal axis of rotation 23 lying in the central plane 24 (fig. 2) of the pharynx 9 and passing close to the two front thread guide rollers 18 and 19 on equal distances from them. On the two side support plates 20, with the aid of loops 25, the ends of two connecting rods 26 are hinged, the free ends of which are eccentrically connected to the drive shaft of the loom (not shown), as a result of which the plate 20 rotates during rotation of the machine drive shaft. Three rollers l7-19 are rigidly connected to each other by means of intermediate support plates 27 (only one intermediate plate is shown) arranged vertically on the side plates. The device works as follows. In the resting position, i.e. when the frames 5.: and the shank are in the end positions to create a completely open opening 9, and the reed is in the designated position shown by the dotted line under the number 1o (fig 2), the forward rollers 18 and 19 The devices are located one above the other vertically and symmetrically relative to the central plane of 24 eev. the rear divider roller 17 has an axis located in one plane with said central plane 24. Thus, under these conditions, the difference in tension between two equal groups of 7 and 8 warp threads is zero, i.e. the two groups 7 and 8 of the warp threads are equally tensioned, since their steps are equal (Fig. 2). However, when the reed is compacted and subsequently led to: movement from position 10, indicated by a dotted line, to post seals 10, shown by a solid line, and heald frames 5 and 6 simultaneously begin changing positions, the device 16 for increasing the density - the oscillations counterclockwise with respect to its axis 23 rotations of the drive in; ala loom,. as a result, its rear roller 17 rotates upward, increasing the path and, consequently, the tension of the top 7 group of warp threads (Fig. 1; while the tension is lying; below, {euppa, 8 warp threads of one-sided; temporarily reduced, allowing Thus, when the hedging frames 5 and 6 complete the change of their positions, causing the intersection of two groups of 7 and 8 warp threads, the reed returns to the retracted position. 10, the sibling device 16 takes the rest position in which the tension difference between two groups of -7 and 8 strands of base We again become equal to zero and the only difference is that these two groups of 7 and 8 warp threads lying between the hedging frames 5 and 6 and the device 16 intersect with each other, but they do not undergo any change in the path. This moment frames 5 and 6 start their own reverse position exchange: and bird 9 begins to seal the next weft of the rotation paths from the right 10 position to the seal position 10 / and both frames are driven by the weaving machine's drive shaft 16. oscillatory motion, and It has an amplitude equal to the amplitude of the preceding, but opposite direction, which, when the rear roller 17 rotates, VN determines the increase in tension lying on the bottom of the 8 thread group and simultaneously reducing the tension on the upper group of 7 warp threads. Thus, the tension difference between the two groups 7 and 8. The warp threads, which now intersect with each other, are applied opposite to the previous case, and, in addition, the two groups 7 and 8 warp threads alternately tension to the same value during two successive duck suck operations, i.e. their paths remain unchanged. Finally, when the reverse change of position of the pins 5 and 6 is completed, the two groups of 7 and 8 warp threads return from the position of their intersection to their CHNMeTpH4Hoe relative position; but the central plane 24 of the throat 9, the device 16 again occupies the rest position and, thus, comes to its original position (Fig; 2), from which the above described cycle begins again, I. - The proposed device is abes; it increases the density of the produced tissue by increasing one group of main threads while loosening the tension of another group of main threads, as a result of which the latter are able to bend around weft threads. Moreover, said weft threads are arranged in different planes, with one weft thread partially overlapping the previous one, increasing the density of the fabric. The proposed device is simple in construction, has small dimensions and is reliable in operation. 7 fff /// f .ff
    权利要求:
    Claims (1)
    [1]
    ; DEVICE FOR SEALING 'DECREASES THREADS ON A WEAVING MACHINE, containing a group ί of three parallel horizontal beams installed between the hems behind the separation roller, and the lateral roller holders connected by a transverse horizontal axis with the possibility of rotation around it from the lever-eccentric drive, characterized * in that, for the purpose of simplification Ia knstruktsii device, a third roller installed above the guide roller for enveloping its bottom warp yarns symmetrically relative to the plane of filling machine, wherein the rollers are mounted in lateral holders rigidly connecting β refueling The holder ® plane and the transverse axis, Teli, razmeschena.v machine.
    类似技术:
    公开号 | 公开日 | 专利标题
    US3834424A|1974-09-10|Three-dimensional fabric, and method and loom construction for the production thereof
    US3394739A|1968-07-30|Apparatus for making plush fabrics
    SU1022665A3|1983-06-07|Apparatus for compacting weft threads in lathe
    US3461920A|1969-08-19|Apparatus for cutting weft yarn ends under tension on a shuttleless loom
    US3911968A|1975-10-14|Devices for fluid insertion of filling yarns
    US3889719A|1975-06-17|Weaving machine for producing terry cloth
    US4078586A|1978-03-14|Method and apparatus for producing a selvage
    US2225452A|1940-12-17|Method and apparatus for making a pile fabric
    US3441059A|1969-04-29|Loom having variable stroke weft thread clamp
    SU1313357A3|1987-05-23|Shedding motion for wave-type shedding loom
    US3752195A|1973-08-14|Loom
    US3593752A|1971-07-20|Loom
    US3720236A|1973-03-13|Arrangement for forming a selvage for use on a loom
    US3794083A|1974-02-26|Selvage forming apparatus for looms
    US2164241A|1939-06-27|Fabric spreading means
    US2552317A|1951-05-08|Shuttleless loom
    US3104683A|1963-09-24|Web loom
    US3340902A|1967-09-12|Method and apparatus for forming tucked-in selvage
    US3951178A|1976-04-20|Shuttleless loom
    US3342218A|1967-09-19|Device for the formation of a travelling shed in looms
    US3664380A|1972-05-23|Loom with traveling shed
    US3456691A|1969-07-22|Shed-forming apparatus for a loom
    US3361164A|1968-01-02|Method and apparatus for weaving fabrics with severed weft yarns and fabric made by the method and apparatus
    JP2672832B2|1997-11-05|Four-axis loom
    US3353568A|1967-11-21|Apparatus for making frieze pile fabrics
    同族专利:
    公开号 | 公开日
    ES8202879A1|1982-02-01|
    GB2063935B|1983-06-22|
    JPS5685446A|1981-07-11|
    IT1125862B|1986-05-14|
    IT7927545D0|1979-11-26|
    FR2470174B1|1985-03-08|
    BR8007722A|1981-06-09|
    FR2470174A1|1981-05-29|
    GB2063935A|1981-06-10|
    DE3044175A1|1981-06-11|
    DD154617A5|1982-04-07|
    CS223989B2|1983-11-25|
    ES497780A0|1982-02-01|
    CH643894A5|1984-06-29|
    AR221459A1|1981-01-30|
    US4390044A|1983-06-28|
    NL8006240A|1981-06-16|
    DE3044175C2|1985-01-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE49520C|O. HOFFMANN in Neugersdorf, Sachsen|Fulling device for mechanical looms|
    US630347A|1898-05-16|1899-08-08|Frank L Hammond|Lease-rod.|
    GB371083A|1931-02-13|1932-04-21|Robert Cotton|Improvements in or relating to warp tensioning devices for looms for weaving|
    GB455389A|1935-05-20|1936-10-20|Linen Ind Res Ass|Production of new or improved pattern effects upon fabrics|
    GB475365A|1936-05-23|1937-11-18|Wool Ind Res Association|Improvements in or relating to warp let-off motions for looms for weaving|
    GB687080A|1950-05-19|1953-02-04|Harold Siddle|Improvements in or relating to looms|
    US2562838A|1950-08-01|1951-07-31|Stevens & Co Inc J P|Oscillating lease rod leveling mechanism|
    DE1255599B|1960-05-11|1967-11-30|Sulzer Ag|Weaving machine with a backrest for the chain and a backrest carrying the backrest as well as with a device for periodically stretching and releasing chain threads|
    CH472521A|1967-03-15|1969-05-15|Sulzer Ag|Device for periodically stretching and slackening warp threads|
    SU701182A1|1978-03-17|1981-09-07|Центральный научно-исследовательский институт промышленности лубяных волокон|Method of forming cloth on loom|DE3273224D1|1982-10-26|1986-10-16|Sulzer Ag|Warp tensioning device on a weaving loom|
    JPH0515105B2|1983-05-10|1993-02-26|Canon Kk|
    US4832014A|1985-10-02|1989-05-23|Perkins Warren E|Method and means for dispensing two respirating gases by effecting a known displacement|
    SE461402B|1988-06-28|1990-02-12|Aelmhults Bruk Ab|DEVICE FOR CONTROL OF TARGET TENSION AT A WEAVING MACHINE|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT27545/79A|IT1125862B|1979-11-26|1979-11-26|PERFECTED OSCILLATING DEVICE TO INCREASE WEFT DENSITY IN FABRIC WITH CANVAS REINFORCEMENT|
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