CN101290257A - Water level pressure switch production and detection device and detection method - Google Patents
Water level pressure switch production and detection device and detection method Download PDFInfo
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- CN101290257A CN101290257A CNA2008100255202A CN200810025520A CN101290257A CN 101290257 A CN101290257 A CN 101290257A CN A2008100255202 A CNA2008100255202 A CN A2008100255202A CN 200810025520 A CN200810025520 A CN 200810025520A CN 101290257 A CN101290257 A CN 101290257A
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- solenoid valve
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- anger
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Abstract
The invention relates to a water level pressure switch production detecting device in a washing machine/dishwasher and a detecting method. The water level pressure switch production detecting device is a computer auxiliary system for detecting the state change of a water pressure switch contact. According to the technical proposal provided by the invention, an inlet electromagnetic valve is arranged on a pipeline which connects a buffer airbag and a compression space; at the same time, an outlet electromagnetic valve for emptying the buffer airbag is connected with the buffer airbag; one end of a hose is fixedly connected with the buffer airbag; the other end of the hose is connected with a water level switch; a pressure sensor is elicited out from the buffer airbag and connected with analogue quantity input ports of an input circuit board and an output circuit board simultaneously; a high water level switch contact and a low water level switch contact are connected with the digital quantity input ports of the input circuit board and the output circuit board; the digital quantity output ports of the input circuit board and the output circuit board are respectively connected with a compressed air pump, the inlet electromagnetic valve and the outlet electromagnetic valve; and the input circuit board and the output circuit board are arranged in a computer. The water level pressure switch production detecting device and the detecting method can improve the detecting precision and testing speed of the water level switch.
Description
Technical field
The present invention relates to washing machine/dish-washing machine middle water level pressure switch production testing device and detection method, it is a kind of computer aided system that the hydraulic pressure switch contacts status changes that detects, be applicable to the detection of high and low two water level pressure switch, can find out the working value of high and low water level switch contact respectively, help, alert carries out adjustment, for the production of water level pressure switch provides quality assurance.
Background technology
Water level pressure switch is the automatic water level control assembly in washing machine/dish-washing machine, can guarantee the normally operation in the water level range that requires of washing machine/dish-washing machine.At present, each pressure switch factory is to the adjustment and the check of pressure switch, generally adopt heavy mechanical device, to pressure switch pressurization and decompression, by listening switch contact sound and seeing that the method for pressure gauge reading checks, some improve also mainly is to improve manometric precision or adopt digital pressure gauge, also have plenty of switch contact is connect pilot lamp, with reduce operating personnel misread and mistake is listened.Existing method all not from the angle of production, provides the simple science of operating process, efficient height, the guaranteed Automated inspection device of precision.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, employing pressurized air is medium, and computing machine is an aid, thereby a kind of water level switch production testing device and detection method are provided, with testing accuracy, the test speed of the switch of flooding.
According to technical scheme provided by the invention, on the pipeline that connects between buffer air bag and compressed air pump, the air inlet solenoid valve is set, on buffer air bag, connect the solenoid valve of giving vent to anger that is used for the emptying buffer air bag simultaneously; The fixedly connected buffer air bag of one end of flexible pipe, the other end of flexible pipe is connected with water level switch; On buffer air bag, draw pressure transducer, this pressure transducer connects the analog quantity input port of I/O circuit plate simultaneously, the high and low water level switch contact of pressure transducer connects the digital quantity input port of I/O circuit plate, and the digital quantity output port of I/O circuit plate connects compressed air pump and air inlet solenoid valve and the solenoid valve of giving vent to anger respectively; I/O circuit plate is installed in the computing machine.
The air inlet hand valve is set between air inlet solenoid valve and compressed air pump, the hand valve of giving vent to anger is set giving vent to anger between solenoid valve and the compressed air pump.
Described water level pressure switch production testing detection method is: at first start compressed air pump, display and order button by computing machine, during by " boosting " button, open the air inlet solenoid valve, the inner chamber of water level switch is boosted, computer real-time acquisition and detection signal that reads in pressure transducer and demonstration, in case high water stage switch contact closure, then computing machine cuts out the air inlet solenoid valve automatically, and whether the force value of checking water level switch this moment conformance with standard, and provides information; By " step-down " button, open the solenoid valve of giving vent to anger again, make the inner chamber step-down of water level switch, in case the low-water level switch closing of contact, then computing machine cuts out the solenoid valve of giving vent to anger automatically, and whether the force value of checking water level switch this moment conformance with standard, and provides information; According to circumstances, but operating personnel's repeated multiple times carry out, till conformance with standard.
The present invention has realized the robotization that washing machine/dish-washing machine middle water level pressure switch detects, in the whole testing process, the user only needs tracheae and switch contact line are connected the testing pressure switch, button sends two orders, take off after the detection, other thing is finished automatically by system, has overcome artificial factor in the detection, has improved accuracy of detection and production efficiency; Adopt the pressurized air scheme to replace heavy mechanical device, lightly nimble; The in store all detection data of Computer Database are convenient to realize quality management system, and the operation conditions of whole process of production is assessed, and have improved homogeneity of product and quality, have reduced waste, have reduced cost.This invention system cost is lower, is easy to promote.
Description of drawings
Fig. 1 is a structure frame principle figure of the present invention.
Fig. 2 is autotest figure of the present invention.
Embodiment
As shown in Figure 1: on the pipeline that connects 1 of buffer air bag 2 and compressed air pump, air inlet solenoid valve 3 is set, on buffer air bag 2, connects the solenoid valve 4 of giving vent to anger that is used for emptying buffer air bag 2 simultaneously; The fixedly connected buffer air bag 2 of one end of flexible pipe 8, the other end of flexible pipe 8 is connected with water level switch 11; On buffer air bag 2, draw pressure transducer 5, this pressure transducer 5 connects the analog quantity input port of I/O circuit plate 6 simultaneously, the high and low water level switch contact of pressure transducer 5 connects the digital quantity input port of I/O circuit plate 6, and the digital quantity output port of I/O circuit plate 6 connects compressed air pump 1 and the air inlet solenoid valve 3 and the solenoid valve 4 of giving vent to anger respectively; I/O circuit plate 6 is installed in the computing machine 7.
Between air inlet solenoid valve 3 and compressed air pump 1, air inlet hand valve 9 is set, the hand valve 10 of giving vent to anger is set giving vent to anger between solenoid valve 4 and the compressed air pump 1.
Operating personnel only need insert tracheae the air cavity of water level switch 11, computing machine 7 is inserted by circuit in high and low water level switch contact, press and boost and the step-down button, just can start autotest, realization is to the automatic measurement and the demonstration of the operating pressure of water level switch 11, and measurement data offers operating personnel by the display of computing machine 7 on the one hand, deposits the database of computing machine 7 on the other hand in, realize statistical Process Control, be convenient to form the quality management system of enterprise.
Described water level pressure switch production testing detection method is as shown in Figure 2: at first start compressed air pump 1, display and order button by computing machine 7, during by " boosting " button, open air inlet solenoid valve 3, the inner chamber of water level switch 11 is boosted, computing machine 7 is gathered and is read in the detection signal of pressure transducer 5 in real time and shows, in case high water stage switch contact closure, then computing machine 7 cuts out air inlet solenoid valve 3 automatically, whether the force value of checking water level switch 11 this moment conformance with standard, and provides information; By " step-down " button, open the solenoid valve 4 of giving vent to anger again, make the inner chamber step-down of water level switch 11, in case the low-water level switch closing of contact, then computing machine 7 cuts out the solenoid valve 4 of giving vent to anger automatically, and whether the force value of checking water level switch 11 this moment conformance with standard, and provides information; According to circumstances, but operating personnel's repeated multiple times carry out, till conformance with standard.
Claims (3)
1, a kind of water level pressure switch production testing device, it is characterized in that: on the pipeline that connects between buffer air bag (2) and compressed air pump (1), air inlet solenoid valve (3) is set, goes up the solenoid valve of giving vent to anger (4) that connection is used for emptying buffer air bag (2) at buffer air bag (2) simultaneously; The fixedly connected buffer air bag of one end (2) of flexible pipe (8), the other end of flexible pipe (8) is connected with water level switch (11); On buffer air bag (2), draw pressure transducer (5), this pressure transducer (5) connects the analog quantity input port of I/O circuit plate 6 simultaneously, the high and low water level switch contact of pressure transducer (5) connects the digital quantity input port of I/O circuit plate (6), and the digital quantity output port of I/O circuit plate (6) connects compressed air pump (1) and air inlet solenoid valve (3) and the solenoid valve (4) of giving vent to anger respectively; I/O circuit plate (6) is installed in the computing machine (7).
2, water level pressure switch production testing device as claimed in claim 1, it is characterized in that: between air inlet solenoid valve (3) and compressed air pump (1), air inlet hand valve (9) is set, the hand valve (10) of giving vent to anger is set between solenoid valve of giving vent to anger (4) and compressed air pump (1).
3, a kind of water level pressure switch production testing detection method, it is characterized in that: at first start compressed air pump (1), display and order button by computing machine (7), during by " boosting " button, open air inlet solenoid valve (3), the inner chamber of water level switch (11) is boosted, computing machine (7) is gathered and is read in the detection signal of pressure transducer (5) in real time and shows, in case high water stage switch contact closure, then computing machine (7) cuts out air inlet solenoid valve (3) automatically, whether the force value of checking water level switch this moment (11) conformance with standard, and provides information; By " step-down " button, open the solenoid valve of giving vent to anger (4) again, make the inner chamber step-down of water level switch (11), in case the low-water level switch closing of contact, then computing machine (7) cuts out the solenoid valve of giving vent to anger (4) automatically, and whether the force value of checking water level switch this moment (11) conformance with standard, and provides information; According to circumstances, but operating personnel's repeated multiple times carry out, till conformance with standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100255202A CN101290257A (en) | 2008-04-29 | 2008-04-29 | Water level pressure switch production and detection device and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100255202A CN101290257A (en) | 2008-04-29 | 2008-04-29 | Water level pressure switch production and detection device and detection method |
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| Publication Number | Publication Date |
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| CN101290257A true CN101290257A (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008100255202A Pending CN101290257A (en) | 2008-04-29 | 2008-04-29 | Water level pressure switch production and detection device and detection method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241527A (en) * | 2015-09-10 | 2016-01-13 | 神龙电气有限公司 | Water level switch detection device |
| CN106125661A (en) * | 2016-07-15 | 2016-11-16 | 上海海事大学 | Assembly shop fuel transfer system pipeline PLC monitoring system |
| CN106289744A (en) * | 2016-08-04 | 2017-01-04 | 浙江顶峰技术服务有限公司 | Pressure switch Endurance life test platform |
| CN118654507A (en) * | 2024-08-20 | 2024-09-17 | 锦益深冷(常州)能源科技有限公司 | Water bath type gasifier convenient for temperature adjustment |
| CN118654507B (en) * | 2024-08-20 | 2024-10-22 | 锦益深冷(常州)能源科技有限公司 | Water bath type gasifier convenient for temperature adjustment |
-
2008
- 2008-04-29 CN CNA2008100255202A patent/CN101290257A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241527A (en) * | 2015-09-10 | 2016-01-13 | 神龙电气有限公司 | Water level switch detection device |
| CN106125661A (en) * | 2016-07-15 | 2016-11-16 | 上海海事大学 | Assembly shop fuel transfer system pipeline PLC monitoring system |
| CN106289744A (en) * | 2016-08-04 | 2017-01-04 | 浙江顶峰技术服务有限公司 | Pressure switch Endurance life test platform |
| CN118654507A (en) * | 2024-08-20 | 2024-09-17 | 锦益深冷(常州)能源科技有限公司 | Water bath type gasifier convenient for temperature adjustment |
| CN118654507B (en) * | 2024-08-20 | 2024-10-22 | 锦益深冷(常州)能源科技有限公司 | Water bath type gasifier convenient for temperature adjustment |
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Open date: 20081022 |