The function of heald frame and the conditions it should meet
The heald frames of the loom drive the healds to form openings. The heald frames of shuttle looms are mostly made of wood or steel, while the heald frames of shuttleless looms are mostly made of aluminum alloy.
1. The role of heald frame in the weaving process
The heald frame is an important part of the loom. It is a frame with heald rods and driving parts connected by upper and lower beams and left and right side rails. After the patch healds are arranged on the heald frame, the warp threads penetrating into the patch healds are integrated into one body. As the heald lifting mechanism of the loom is relaxed, the heald frames are relaxed up and down according to the program of the shedding device, so that the warp yarns are opened in layers to provide the weft yarns in the warp yarns. Shuttle and intertwine into fabrics of different patterns.
2. Conditions that the heald frame should meet in the weaving process
(1) The structure of the heald frame must be solid and have driving parts that match the loom.
(2) The heald frame must have good mechanical properties and certain strength and stiffness.
(3) The surface of the heald frame is flat and smooth, and the main dimensions match the loom to ensure normal operation of the heald frame.
(4) The heald frame must be integrated with the piece.
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