TWI672457B - Proportional solenoid valve device with zero adjustment and zero return adjustment method thereof - Google Patents

Abstract

The present invention provides a proportional solenoid valve device with zero adjustment, the device includes a body having a through hole and a through hole, and is accommodated in the through hole and is movable along the through hole axis Moving the valve shaft, and a return-to-zero module disposed on the valve shaft, adjusting the position of the return-to-zero module, and moving the valve shaft in the through-opening to move parallel to the through-opening axis In order to achieve the purpose of adjusting the position of the valve shaft.

Description

Proportional solenoid valve device with zero adjustment and zero return adjustment method thereof

The present invention relates to a proportional solenoid valve device, and more particularly to a proportional solenoid valve device with zero return adjustment and a zero return adjustment method thereof.

Referring to FIG. 1 , it is a conventional proportional solenoid valve structure. As shown in the figure, the conventional proportional solenoid valve structure includes a coil 11 wound around a bobbin, a core 12 mounted on a hollow portion of the bobbin, and a movable body. a core 13, a valve body 14 disposed at one end of the movable iron core 13, and a spring 14 biasing the valve body 14 together with the movable iron core 13 in the closing direction, and the common proportional solenoid valve further includes a valve chamber for introducing a fluid into the valve a lead-in passage in the body, a valve seat disposed in the valve chamber, and an outlet passage for withdrawing fluid from the valve chamber via the valve seat, and when the coil is not energized, the movable iron core is pressed by the pressure of the spring to make the valve body and the valve The seat is closed and closed. Relatively speaking, when the coil is energized, the coil is excited, and the valve body is abutted and opened, and the conventional proportional solenoid valve controls the amount of energization of the coil to achieve control. The size of the valve body opening and the purpose of adjusting the fluid flow.

However, by controlling the amount of energization of the coil, since the electromagnet is excited and the two ends are pushed together, a gap occurs at the contact surface with the valve shaft, the force transmission at the contact point is discontinuous, and the reaction time becomes slow, so it is easy to cause flow A less serious situation in control occurs.

In view of the above disadvantages of the prior art, the main object of the present invention is to provide a proportional solenoid valve device with zero adjustment, which can be adjusted by adjusting the zero return module to adjust the position of the valve shaft and the valve shaft. The purpose of zero.

Another object of the present invention is to provide a method for adjusting the zero return of a proportional solenoid valve, and by adjusting the zeroing adjustment method of the zero return module, after the proportional electromagnetic production, the valve shaft returning to zero is performed first, thereby improving product quality. The purpose of stability.

The right object of the present invention is to provide a proportional solenoid valve zeroing adjustment method, which can quickly adjust the valve shaft and further achieve flow control accuracy through the zero return adjustment method.

In order to achieve the above object, the present invention provides a proportional solenoid valve device with zero return adjustment and a zero return adjustment method thereof, the device includes a body having a through hole and a through hole, and a receiving body is disposed in the through hole And a valve shaft movable along the direction of the through-hole axis, and a return-to-zero module movably disposed on the valve shaft, by adjusting the position of the return-to-zero module, and causing the valve shaft to be in the through-opening Inside, the movement is parallel to the direction of the through-opening axis, thereby achieving the purpose of adjusting the position of the valve shaft.

11‧‧‧ coil

12‧‧‧ iron core

13‧‧‧ movable iron core

14‧‧‧ valve body

21‧‧‧ body

211‧‧‧through openings

212‧‧‧through hole

22‧‧‧ valve shaft

23‧‧‧Return to zero module

231‧‧‧Adjustment board

232‧‧‧Adjustment unit

233‧‧‧ Connecting rod

234‧‧‧Adjustment rod

4‧‧‧Proportional solenoid valve

41‧‧‧Zero adjustment test unit

42‧‧‧Test hole

S1~S2‧‧‧ adjustment steps

Figure 1 is a schematic view of the structure of a conventional proportional solenoid valve.

Figure 2 is a schematic view of a proportional solenoid valve device with zero adjustment in the present invention.

Figure 3 is a flow chart showing the steps of the zero adjustment method of the proportional solenoid valve device of the present invention.

Fig. 4 is a schematic view showing another embodiment of the proportional solenoid valve device with zero return adjustment according to the present invention.

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can understand the other advantages and advantages of the present invention from the disclosure.

Please refer to FIG. 2 , which is a schematic diagram of a proportional solenoid valve device with zero adjustment in the present invention. As shown in the figure, the device includes a body 21 having a through hole 211 and a through hole 212. a valve shaft 22 extending through the opening 211 and movable along the axial direction of the through hole 211, and a return-to-zero module 23 movably disposed on the valve shaft 22, wherein the return-to-zero module 23 An adjustment plate 231 disposed at a plurality of ends of the valve shaft 22, an adjustment unit 232 disposed between the valve shaft 22 and the adjustment plate 231, and a connecting rod 233 disposed at an end of the adjustment plate 231 opposite to the valve shaft 22, and a setting of the connecting rod 233 opposite to the end of the valve shaft 22 The adjusting rod 234 is a spring. When the adjusting unit 232 is actuated, the connecting rod 233 and the adjusting plate 231 of the adjusting end are actuated by the adjusting unit 232 to loosen and push the valve shaft. When the force of 22 is tightened relative to the other end, the adjusting rod 234 presses the connecting rod 233 to press the adjusting plate 231 to press the adjusting unit 232 to move the valve shaft 22 in the releasing direction. Thereby the purpose of adjusting the position of the valve shaft 22 is achieved.

Please refer to Fig. 3, which is a schematic diagram of the steps of the zero adjustment method of the proportional solenoid valve device, as shown in the figure: Step 1 (S1): providing a body having a through hole and a plurality of through holes, and moving in the through hole a valve shaft is disposed, and the valve shaft is movable along the through-opening shaft direction; step 2 (S2): providing a return-to-zero module, the return-to-zero module is disposed at both ends of the valve shaft, and the return is adjusted a zero module that moves the valve shaft in the through hole to move parallel to the through hole axis, wherein the reset module includes a plurality of adjusting plates, an adjusting unit, a connecting rod and an adjusting rod, and the The adjusting unit is a spring. When the adjusting unit is rotated, the connecting rod of the adjusting end and the adjusting plate are acted upon by the adjusting unit to loosen the force of the valve shaft and tighten the opposite end. In the action, the adjusting rod presses the connecting rod, so that the adjusting plate presses the adjusting unit to move the valve in the loose direction in the axial direction, thereby achieving the purpose of adjusting the position of the valve shaft.

Please refer to FIG. 4 , which is a schematic diagram of another embodiment of a proportional solenoid valve device with zero return adjustment according to the present invention. As shown in the figure, the proportional solenoid valve 4 is When the valve shaft is adjusted, the proportional solenoid valve 4 is placed in a zero point adjustment test unit 41 having a plurality of test holes, and the test hole 42 is disposed corresponding to the position of the through hole, when the fluid or gas is passed through The fluid or gas in the proportional solenoid valve 4 enters the test hole 42 through the through hole, and a test device (not shown) is connected to one end of the test hole 42 to obtain a gas or a fluid generated by the proportional solenoid valve. The flow rate is adjusted according to this, so as to achieve the purpose of zeroing the proportional solenoid valve.

The above-described embodiments are merely illustrative of the features and functions of the present invention, and are not intended to limit the scope of the technical scope of the present invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.

Claims (8)

A proportional solenoid valve device with zero adjustment, the device includes: a body having a through hole and a plurality of through holes communicating with the through hole; a valve shaft received in the through hole And the valve shaft can move along the direction of the through-opening axis; a resetting module includes a plurality of adjusting plates, an adjusting unit, a connecting rod and an adjusting rod, and is disposed on the valve shaft to adjust the zero return mode The group position is such that the valve shaft moves in the through-opening hole in parallel with the through-opening axis direction, thereby achieving the purpose of adjusting the position of the valve shaft. The proportional solenoid valve device with zero adjustment as described in claim 1, wherein the device further comprises a return-to-zero adjustment test unit. The proportional solenoid valve device with zero adjustment as described in claim 2, wherein the zero point adjustment test unit has a plurality of test holes corresponding to the through holes. The proportional solenoid valve device with zero adjustment as described in claim 1, wherein the adjusting unit is a spring. A proportional solenoid valve device zeroing adjustment method, the method step comprising: providing a body having a through hole and a plurality of through holes, wherein a valve shaft is movably disposed in the through hole, and the valve shaft can be opened along the through hole Moving in the direction of the hole axis; providing a return-to-zero module having a plurality of adjustment plates, an adjustment unit, a connecting rod and an adjustment rod, the return-to-zero module being disposed at both ends of the valve shaft, by adjusting the zero return module, The valve shaft moves in the through-opening hole in the direction parallel to the through-opening axis, thereby achieving the purpose of adjusting the position of the valve shaft. The proportional solenoid valve device zeroing adjustment method according to claim 5, wherein the device further comprises a return-to-zero adjustment test unit. The zero-adjustment method of the proportional solenoid valve device according to claim 6, wherein the zero-point adjustment test unit has a plurality of test holes corresponding to the through holes. The proportional solenoid valve device zeroing adjustment method according to claim 5, wherein the adjusting unit is a spring.