摘要:
In a weft insertion device (1) of a rapier loom, to insert a weft (2) through a guide hole (4) at a tip end part of a weft guide lever (3) and to guide the weft (2) connected to a woven fabric (6) to a catchable position of a rapier head (7), the weft guide lever can reciprocate between first and second positions (P1: retreat position, P2: guide position).. The guide hole is located at the second position at start of weft insertion so that the rapier head catches the weft. Then, before beating up, the weft guide lever is driven to move the guide hole toward the first position, thereby markedly reducing bending of the warp and sliding thereof on a reed (12) etc. because of a positional relationship between the weft guide lever and the reed and preventing the weft from being damaged because of bending and sliding.
摘要:
The invention relates to a pneumatic thread tensioner (T) for a gripper shuttle loom or a knitting machine, in which the air-current deflection surface (19) for deflecting the thread (Y, Y1) forms a seamless extension (12) of the inner wall of the linear guide channel, through which the thread runs. The invention also relates to a device (H) for changing the flow rate or the pressure of the air-current along the deflection surface (19) of the pneumatic thread tensioner (T) between at least two different levels, in accordance with the operating cycle of the textile machine.
摘要:
The invention relates to a process for producing a fabric by means of a shed course loom having a weaving rotor (6), in which there are at least two spaced shed-forming sections (6a, 6b) on the weaving rotor and the sections (6a, 6b) are supplied with separate weft threads (2a, 3a) supplied only to one section (6a; 6b).
摘要:
A method and apparatus for multi-shed warp-wave weaving wherein weft threads (W1-W4) are inserted into shed retainers (16) by a stationary weft thread supply chamber (12). The inserted weft thread is transported through each shed retainer (16) by air jet nozzles (22) cooperatively associated with the shed retainer (16) and in fluid communication with corresponding air supply sources (AS1-AS4) stationarily mounted beneath the pathway of the shed retainers from weft insertion towards the fell of the fabric (F) being woven. The novel weft thread inserting mechanism in combination with novel air supply system act to increase the efficiency and reliability of weft insertion in multi-shed warp-wave weaving.
摘要:
Zum Halten von Schussfadeneintragselementen, die erste und zweite Elemente (1, 2) sowie Luftdüsen (3) umfassen ist eine Anordnung vorgesehen, in welcher die Eintragselemente kammartig angeordnet sind. Die Anordnung enthält einen Tragkörper (4), ein Halteorgan (5) für die ersten und zweiten Elemente (1, 2) und einen Halter (6) für die Luftdüsen (3). Zwecks Umstellung bzw. Ersetzen sind die ersten und zweiten Elemente zu entfernen, das Halteorgan auszutauschen, die Elemente wieder einzusetzen und die Luftdüsen auf die zweiten Elemente auszurichten, wodurch die Umstellung vereinfacht und der Aufwand verringert wird.
摘要:
A transfer tail holding device (12) is provided to hold a transfer tail formed between one weft package (24) and the other spare weft package (26) which are supported by weft feeding means (10). The holding device comprises a holding member (38) having at least one notch (36) for receiving the transfer tail. Therefore, it is possible to position the transfer tail in a mechanical fashion.
摘要:
The apparatus for disposing of a weft (Y₃) piece in a jet loom comprises a pair of weft piece sensors (23A, 24A; 23B, 24B), disposed at the terminal side of weft picking passage. If a weft yarn breaks, the weft piece withdrawing device withdraws one piece (Y₃) of the broken weft with a pair of weft piece withdrawing rollers (27, 29) disposed between said paired weft piece sensors (21A, 22A; 23A, 24A; 23B, 24B). The withdrawing rollers (27, 28) form, when put together a drum, that serves as a measuring drum for the weft yarn piece when it is wound on that drum. Another weft yarn withdrawing device (8, 9, 11, 12, 17, 16, 17, 18) placed at the entering side of the weft picking passage, provides for withdrawing the weft yarn piece (Y₁) upstream the breaking point of the broken weft (Y). The withdrawing devices generate signals representative for the length of the withdrawn yarn pieces (Y₁, Y₃) of the broken weft. These signals are fet to a computer (C). In this computer (C) the sum of the length of the yarn pieces is compared with the preset nominal weft yarn length. If the sum of the removed yarn pieces is equal or greater than the nominal weft length the loom is automatically restarted; this based on the assumption that the broken weft has been totally removed. If the sum of the pieces is shorter than the nominal weft length, the loom is not restarted and calls for service personnel care.
摘要:
Bei einer Luftdüsenwebmaschine wird die Schußfadeneintragsvorrichtung aus einer oder mehreren Hauptdüsen gebildet, die den Schußfaden über einen Schußeintragskanal in das Webfach eintragen und der Schußfaden im Webfach über eine Vielzahl nebeneinander angeordneter und einen gegenseitigen Abstand aufweisender Staffettendüsen zur Fangseite getragen wird. An der Fangseite ist eine Klemmeinrichtung angeordnet, die den Schußfaden während des Abbindevorgangs klemmend festhält. Um eine gleichmässig dichte Warenqualität an der Schußeintragsseite und an der Fangseite zu gewährleisten, ist eine Streckvorrichtung vorgesehen, die in Schußrichtung vor der Klemmeinrichtung angeordnet ist und welche den in der Klemmeinrichtung festgelegten Schußfaden unter Bildung einer Schußfadenschlaufe streckt und damit spannt.