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Double-head pneumatic spray gun testing method

A testing method and automatic testing machine technology, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as optimization of use functions, poor spraying effect, and decline in the use of spray guns, and achieve detection Thorough, simple and intuitive detection method

Inactive Publication Date: 2017-05-31
广西凯纵机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The spray gun mainly uses air pressure to produce atomization effect and sprays through the nozzle of the spray gun, and the spray body passes through the air pipe to the nozzle mouth to spray atomized spray. Higher air pressure will obtain greater spray energy and finer atomization effect. The most important thing about the spray gun is to control the spray air pressure, and the change degree of the air pressure will greatly affect the quality of use
[0003] At present, spray guns have studied many shapes and structures around the same or similar principles of use, but there is no good detection method for the detection of air tightness of spray guns and the detection of spraying effects. The air tightness and spraying effect of the spray gun are the most important performance indicators, and the poor air tightness will cause the overall use function of the spray gun to decline, and the poor spraying effect will make the spraying fail to meet the requirements. Although the structure has been improved, it does not Without optimizing the function of use, the function of the spray gun cannot be fully utilized

Method used

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  • Double-head pneumatic spray gun testing method
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 , 2 As shown, a double-headed pneumatic spray gun test method includes the following steps:

[0026] a. Spray gun service life test: automatic test machine 5000 times cycle test;

[0027] b. Pressure test of spray gun body: Inject gas with a pressure of 8KG into the gun body for 60 minutes;

[0028] c. Sealing test: Connect the air pipe joint, the gas pressure is 3KG, the gun body is immersed in water, and when the oil adjusting screw 3 and air sealing screw 4 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified ; Observe whether there are bubbles coming out of the inner nozzle 1; when the inner nozzle 1, the hexagon 5, and the AB seat are immersed in water, there should be no bubbles within 1 minute;

[0029] d. Connect liquid with a pressure of 4KG, and observe whether there is liquid leakage at the joint 2 of the liquid pipe;

[0030] e. Spraying test: Check the working status of t...

Embodiment 2

[0032] like figure 1 , 2 As shown, a double-headed pneumatic spray gun test method includes the following steps:

[0033] a. Spray gun service life test: 10,000 cycles of automatic testing machine;

[0034] b. Pressure test of spray gun body: Inject gas with a pressure of 12KG into the gun body for 60 minutes;

[0035] c. Sealing test: Connect the air pipe joint, the gas pressure is 4KG, the gun body is immersed in water, and when the oil adjustment screw 3 and air seal screw 4 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified ; Observe whether there are bubbles coming out of the inner nozzle 1; when the inner nozzle 1, the hexagon 5, and the AB seat are immersed in water, there should be no bubbles within 1 minute;

[0036] d. Connect liquid with a pressure of 5KG, and observe whether there is liquid leakage at the joint 2 of the liquid pipe;

[0037] e. Spraying test: check the working status of the ...

Embodiment 3

[0039] like figure 1 , 2 As shown, a double-headed pneumatic spray gun test method includes the following steps:

[0040] a. Spray gun service life test: 20,000 cycles of automatic testing machine;

[0041] b. Pressure test of spray gun body: Inject gas with a pressure of 8KG into the gun body for 60 minutes;

[0042] c. Sealing test: Connect the air pipe joint, the gas pressure is 5KG, the gun body is immersed in water, and when the oil adjustment screw 3 and air seal screw 4 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified ; Observe whether there are bubbles coming out of the inner nozzle 1; when the inner nozzle 1, the hexagon 5, and the AB seat are immersed in water, there should be no bubbles within 1 minute;

[0043] d. Connect liquid with a pressure of 6KG, and observe whether there is liquid leakage at the joint 2 of the liquid pipe;

[0044] e. Spraying test: Check the working status of the g...

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Abstract

The invention relates to a double-head pneumatic spray gun testing method. The double-head pneumatic spray gun testing method includes the steps of A, testing service life of the spray gun, namely, conducting cycle usage test for 5,000-20,000 times by an automatic tester; B, subjecting a spray gun body to pressure resistance testing, namely, injecting air with the pressure of 8 KG into the gun body for 60 minutes; C, testing airtightness, namely, establishing connection with an air pipe joint at the air pressure of 3-5 KG, observing the number of bubbles rising from all screws respectively when the gun body is immerged into water, and observing whether or not the bubbles rise from a gun nozzle; D, establishing connection with liquid with the pressure of 4-6 KG and observing whether a liquid pipe joint leaks liquid or not; F, conducting spray testing, namely, observing atomization effects. The double-head pneumatic spray gun testing method is capable of testing airtightness of multiple portions of the spray gun and can be more thorough in spray effect detection by testing different shapes of spraying effects.

Description

technical field [0001] The invention relates to the field of equipment testing methods, in particular to a testing method for a double-headed pneumatic spray gun. Background technique [0002] The spray gun mainly uses air pressure to produce atomization effect and sprays through the nozzle of the spray gun, and the spray body passes through the air pipe to the nozzle mouth to spray atomized spray. Higher air pressure will obtain greater spray energy and finer atomization effect. The most important thing about the spray gun is to control the spray air pressure, and the change degree of the air pressure will greatly affect the quality of use. [0003] At present, spray guns have studied many shapes and structures around the same or similar principles of use, but there is no good detection method for the detection of air tightness of spray guns and the detection of spraying effects. The air tightness and spraying effect of the spray gun are the most important performance indi...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01M3/06G01M3/04
CPCG01M3/04G01M3/06G01M13/00
Inventor 黄海东曾广刘耀聪
Owner 广西凯纵机械制造有限公司
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