The meaning of shuttle

Shuttle means the part of the loom that carries the shuttle and introduces the weft into the shed.

Shuttle refers to the part of a loom that carries the shuttle and introduces the weft yarn into the shed. It does intermittent reciprocating motion on the traditional loom and continuous circular motion on the circular loom. China used shuttles from the Warring States to the Han Dynasty. Modern shuttles are made of persimmon, Cyclobalanopsis glauca, laminated board or nylon. The front and rear walls of the shuttle are coated with plastic or pasted with hard paper as protective layers.

The shuttle cavity is often filled with bristles, nylon thread, fur or plush. To prevent the weft from falling off when the weft is unwound. The shuttle tip is made of medium carbon steel and has a certain hardness after heat treatment. The angles between the back wall and the bottom of the shuttle are 86.5 degrees, 87 degrees, 88 degrees and 90 degrees. Acute angle is used to improve the stability of shuttle flight.

Basic introduction

The shape and structure of the shuttle are also related to the structure of the shuttle, the filling method of weft and the motion properties of the shuttle on the shuttle track. A shuttle used on a common loom has a plunger inserted on a spool with a spring leaf, and the spool is supported by a bottom plate spring. There is a protruding nail at the root of the shuttle core of the automatic shuttle loom, which engages with the groove of the weft tube.

Align the probe slot on the tube with the probe hole on the front wall of the shuttle to ensure the induction of shuttle replacement. One end of the shuttle cavity of the automatic shuttle changing loom is equipped with a yarn gripper for gripping the bottom of the weft tube. When changing the shuttle, the three steel needles at the bottom of the weft tube are pressed into the gripper, and the weft head can be automatically introduced into the yarn guide of the shuttle head, while the empty tube is released from the bottom of the shuttle.

The function of the shuttle blade tip is to separate warp yarns; The function of the shuttle flat head is to contact with the leather knot to reduce its loss. The inner wall of the shuttle used for papermaking blankets and knitting machines is ribbed. During operation, the hollow badminton is pressed into the shuttle cavity by hand, and covered with a steel spring to prevent the badminton from scattering or jumping out of the shuttle cavity.

The shuttle of the ribbon loom is semicircular with a toothed bar at the bottom, which is actively driven by the shuttle gear. The shuttle of circular loom is usually circular and driven by electromagnetic device. In the 1970s, looms used electronic devices to detect the flight movements of shuttles. A magnet is embedded in the bottom of the shuttle. When the shuttle flies abnormally, the magnet will send a signal to control the loom to stop in time.