Tsudakoma Kogyo Kabushiki Kaisha

Akihiko Yamamoto

Akihiko Nakada

Masato Matsumoto

Tomokazu Ishita

Kazufumi Yama

Kiyoyasu Oda

Yuki Kojima

Nobuo Tanida

Morikazu Yamazaki

Yukio Isa

Hiroshi Kakuda

A control technique is capable of adjusting a weight of a pile fabric by adjusting consumption of a pile warp at a proper range with a more simplified system. In a pile loom, a tolerance relative to a value associated with consumption of the pile warp is set, and the value associated with consumption of the pile warp is measured during a pile weaving period. If the value associated with consumption of the pile warp exceeds the tolerance, the weaving condition parameter associated with the weight of the pile is corrected in a direction to approach a target value of the weight of a pile fabric.

Method of controlling pile fabric loom

This reed for weaving is characterized in that a plurality of reed dents each having a hollow portion in a front edge section are arranged such that the hollow portions are communicated with each other so as to form guide grooves for the weft, the depths of the hollow portions of the reed dents located at least at one end portion are made larger than the depths of the hollow portions of the other reed dents, and that the nearer the central side in the weft insert direction, the smaller the depths of the hollow portions of the reed dents are made so as to become approximate to the depths of said hollow portions of the other reed dents, and further, areas including portions corresponding to the hollow portions in the rear edge section of the reed dents are projected backward.

Reed for weaving

A tack-in apparatus is provided wherein injection ports are arranged at upper and lower sides of a weft yarn path, respectively. The injection ports inject currents for folding back an end portion of a cut weft yarn into a warp yarn opening on the weft yarn path which the weft yarn passes by a beating operation. Air guides projecting toward the warp yarn opening are formed at circumferential portions of the injection ports between the weft yarn path and the injection ports. The surfaces of the air guides which are on the sides of the injection ports are inclined toward the weft yarn path at front end portions of the air guides. In order to tack in the weft yarn end, the injection air currents are directed to the central portion of the warp yarn opening. This enables the weft yarn end to be transferred reliably, the tack-in operation to be carried out reliably, and the turbulence of the warp yarn to be reduced.

Tack-in apparatus

A faulty weft separating apparatus in a rapier loom for multiple colors which separates a faulty weft from other normal wefts and removes the faulty weft by way of a weft removing apparatus when a faulty weft insertion occurs. A set of guiding members are disposed on the insertion side of a fabric and when a weft is inserted properly, the guiding members are located at the retraction position to store the inserted weft in a storage section. When a faulty weft insertion occurs, the guiding members swing to the fabric winding side to allow the faulty weft to enter a positioning section, thus separating the faulty weft from other normal wefts. The separated faulty weft is picked up by a hook and wound by a weft removing apparatus.

Faulty weft separating apparatus in a rapier loom for multiple colors

Growing community of inventors

Kanazawa, Japan

Akihiko Yamamoto