Electromagnetic needle selector for jacquard

Abstract

An electromagnetic needle selection device of a jacquard machine comprises a valve body, work coils and an iron core thereof. The valve body is provided with a holding chamber for holding the work coils and the iron core thereof, and one side of the holding chamber is adjacent to the working face of the valve body. The front face of the iron core is of a fallen H shape, the iron core is arranged in the holding chamber in a lateral way, and two side end faces at one side of the fallen H-shaped transverse sheet are exposed at the working face of the valve; the working face of the valve is of rectangle shape, a lug is arranged between the two exposed side end faces of the transverse sheet, the lug is provided with two concave through grooves corresponding to the two side end faces, and the two concave through grooves are internally provided with armature pins respectively; the lower ends of the armature pins extend out the concave through grooves, and the upper ends of the armature pins extend out the concave through grooves to butt against a spring. The invention selects pins by using the working coils, the armature pins and the spring structure, thus dispensing with restoring coils, overcoming the defects of large residual magnetism and complex structure, and resolving the problem of easy breakage of connecting wires between the working coils and the circuit board.

Description

【Technical field】 [0001] The invention relates to an electronic jacquard machine, in particular to an electromagnetic needle selection device used on the jacquard machine. 【Background technique】 [0002] The emergence of electronic patterns (or electronic fountains, electronic patterns, etc.) has changed the way that traditional mechanical jacquard machines rely on the needle selection mechanism composed of mechanical fountains, turning mechanisms and pattern plates to select needles, realizing time-saving and material-saving. The purpose of high efficiency. The "Electronic Flower Board" of Chinese Patent No. 012394505 (hereinafter referred to as "Patent 1") introduces an electromagnetic needle selection device for jacquard machines. Composed of working coil and reset coil. The electromagnet bracket is fixed on the chassis, and there are vertical blind holes and horizontal through holes interpenetrating on it, and the moving iron core is arranged in the vertical blind hole...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned known technology has the following problems: Patent 1 uses the working coil and reset coil to pass through the moving iron core to form a "no hole" or "hole" state to control the horizontal needle and realize the shed, with large residual magnetism and complex structure

There is thus a problem: during work, since the coil lead wire needs to be in a state of reciprocating movement for a long time, even though a flexible circuit (connecting wire) is used, the coil lead wire is still prone to breakage and has poor reliability.

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