Electronic jacquard needle selection solenoid valve

Abstract

The invention relates to an electronic jacquard needle selection solenoid valve, comprising a valve seat provided with an executive component mounting cavity, an executive component installed in the mounting cavity, a guide post arranged on one end of the valve seat and extending outwards, and a push pin channel penetrating through the guide post and provided with a push pin hole at a corresponding position of the valve seat. The executive component cooperates with the push pin hole to realize opening or closing of the push pin hole. The solenoid valve is characterized in that the executive component comprises a swinging arm in pin joint on the valve seat and having a working end corresponding to the push pin hole, and a power component driving the swinging arm to open and close the push pin hole; the power component comprises at least an electromagnet and a push-and-pull component; the electromagnet comprises a coil frame, coils wound around the coil frame, and an iron core inserting into the coil frame; the coil frame is fixed on the valve seat; and the working end of the iron core cooperates with the swing arm. The invention has the following beneficial effects: the permanent magnet is omitted to reduce cost; and the function of opening and closing the push pin hole is realized by the electromagnet or cooperation between the electromagnet and a spring.

Description

technical field [0001] The invention relates to an electronic flower pillow needle selection solenoid valve. Background technique [0002] The needle selection solenoid valve (such as Figure 7 and Figure 8 The electromagnet in shown) includes a coil frame, a coil wound on the coil frame, an iron core inserted in the coil frame, and permanent magnets 15 respectively arranged at both ends of the iron core, wherein the iron core and the permanent magnet are fixed on the valve On the seat, the coil frame can move vertically up and down relative to the iron core. The end of the coil frame corresponding to the push pin hole is provided with a vertical stopper. By passing forward or reverse current to the coil, the two ends of the coil generate N-S or S-N magnetic field polarity and the permanent magnet generates mutual attraction or separation force, thus Push the coil frame to move up and down, drive the stopper to move up and down to close or open the push needle hole, and r...

AI Technical Summary

Problems solved by technology

Defects of this solenoid valve: 1. When applied to permanent magnets, the permanent magnets are rare earths, which are expensive, and the state controls rare earths, so the cost will only continue to increase

2. Regardless of whether the push pin hole is closed or open, the coil must be energized. The coil heats up and consumes a lot of power, which leads to fast demagnetization of the permanent magnet, easy aging of plastic parts, and reduced service life. Moreover, the demagnetization of the permanent magnet is due to the weakening of the magnetic force. Cause the coil frame to move slowly or not move, causing the switch to fail, resulting in defective products, or even unable to operate effectively

3. Open or close the push needle hole by moving the coil frame. Due to the heavy weight and large friction area of ​​the coil frame, an electromagnetic force greater than 15 grams must be used to drive the coil frame. It is necessary to increase the magnetic force by increasing the number of coil turns and the volume of the permanent magnet. , which further increases the weight of the coil frame, and the heat generated by long-time energization causes the coil frame (usually made of plastic) to deform, and the enameled wire ages and breaks, resulting in the failure of the solenoid valve

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