Intellective online device for detecting sealability of washing machine
A technology of sealing detection and detection device, which is applied in the direction of liquid tightness measurement by using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problems of time-consuming, laborious, uncoordinated, waste of water resources, etc.
Inactive Publication Date: 2005-06-29
OCEAN UNIV OF CHINA
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Problems solved by technology
Apparently, this manual method of visual inspection is time-consuming and laborious, and it is not compatible with modern automated production, and it wastes water resources.
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[0010] An intelligent on-line washing machine airtightness detection device is characterized in that it is composed of a control circuit board 18 of a single-chip microcomputer including a software program, an air path detection device 3 and a linkage sealing device 5, wherein the air path detection device 3 consists of three connecting parts 21 and A power arm including a two-position five-way valve 22 and a cylinder 25 and a pressure reducing valve 30, a one-way throttle valve 29, a two-position two-way valve 28, a detection chamber 34, a pressure transmitter 27, and a differential pressure transmitter 32 composition of the detection arm. Such as Figure 1-Figure 3 ,in
[0011] A. The basic structure and connection relationship of the gas path detection device 3 can be that the air inlet end of the three-piece 21 is connected to the gas source on the production line, and the other two ends are respectively connected to the two-position five-way valve 22 and the pressure red...
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An intelligent on-line washing machine airtightness detection device, which is composed of a single-chip microcomputer control circuit board including a software program, an air circuit detection device and a linkage sealing device, wherein the air circuit detection device consists of three connecting parts and includes a two-position five-way valve and a cylinder The power arm consists of a pressure reducing valve, a one-way throttle valve, a two-position two-way valve, a detection chamber, a pressure transmitter, and a detection arm of a differential pressure transmitter; the linkage sealing device is composed of a The travel switch, the universal joint and the seal at the lower end are composed; the control circuit board is composed of a single-chip microcomputer respectively connected to an A / D conversion module and a keyboard / display module. The present invention uses gas instead of water for leak detection or detection of washing machine sealing performance, which not only greatly shortens the detection time and effectively completes on-line detection, but also realizes quantitative detection of leakage by using gas instead of water, so that the detection sensitivity and reliability are also improved. It is greatly improved, so it can be widely used in the detection of sealing performance or leakage degree of washing machines.
Description
technical field [0001] The invention relates to a workbench for the sealing performance of a washing machine, in particular to an intelligent on-line washing machine sealing performance detection device. technical background [0002] Tightness is an important parameter of washing machine performance, and also an important index to evaluate the quality of washing machine. The traditional detection method is carried out after the washing machine is produced and assembled. First, a certain amount of water is injected into the drum, and the water leakage is observed after a certain period of time. If water leakage is found, it is reworked. Apparently, this manual method of visual inspection is time-consuming and laborious, and is not in harmony with modern automated production, and wastes water resources. Contents of the invention [0003] The present invention is a mechatronics device composed of three parts: a control circuit board with a single-chip microcomputer as the co...
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IPC IPC(8): G01M3/26
Inventor 綦声波周丽芹
Owner OCEAN UNIV OF CHINA