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Piezoelectric air valve and multi-valve type piezoelectric air valve

一种空气阀、空气压力的技术，应用在升阀、阀细节、多通阀等方向

Inactive Publication Date: 2008-06-25
SATAKE CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the permanent magnet is structurally required to levitate the movable access shaft to support the shaft, the size of the removal device alone exceeds the given limits

Method used

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  • Piezoelectric air valve and multi-valve type piezoelectric air valve
  • Piezoelectric air valve and multi-valve type piezoelectric air valve
  • Piezoelectric air valve and multi-valve type piezoelectric air valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0036] Now, the piezoelectric air valve and the multi-valve piezoelectric air valve according to the present invention will be described in detail below with reference to the accompanying drawings.

[0037] First refer to figure 2 An overview of a particulate material sorting machine that can use the piezoelectric air valve according to the present invention will be described to help understand the present invention. figure 2 is a schematic side sectional view of the main part of the granular material sorting machine 30 and its internal structure. The granular material sorter 30 includes a granular material supply part including a bin 31 and a vibratory feeder 32 at an upper portion thereof. The granular material supplied from the granular material supply part sequentially falls naturally through the chute 33, and then is released into the air from the lower end portion thereof along a given falling trajectory.

[0038] At least one pair of optical detection means 34a, 34b...

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PUM

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Abstract

The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mechanism for enlarging the small displacements generated by the piezoelectric element by the principle of a pry and applying the enlarged displacements to the valve body. The enlarged displacements cause a large and sufficient gap to be developed between the air pressure chamber and the air outlet when a voltage is applied to the piezoelectric element. When the applying of voltage to the piezoelectric element is stopped, the resetting force of the piezoelectric element itself causes the gap to be closed quickly.

Description

technical field [0001] The present invention relates to a granular material sorting machine for sorting and removing foreign matter such as stones undesirably mixed in grains such as rice grains and defective products such as colored grains, and more particularly relates to an air valve for use in As the main components that can affect the sorting ability of the granular material sorting machine. Background technique [0002] Generally speaking, the removal of defective products by a sorting machine is carried out in such a manner that the granular material is continuously released into the air along a given falling trajectory, and is discharged at a predetermined position with an air pulse flow according to a defective product detection signal. The defective product blows out of the given falling trajectory. The air pulse flow that blows the rejects directly away in the sorter is generated by the air valve. In this sense, it can be considered that the air valve is the mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K31/02F16K31/44F16K11/22F16K31/00
CPCF16K31/006F16K31/004B07C5/363Y10T137/87877B07C5/00
Inventor 矢野健樋口俊郎工藤谦一徐世杰柴田恒彦池田宪政
Owner SATAKE CORP
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