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Test method for double-headed manual gun

A testing method, automatic testing machine technology, applied in the testing of mechanical components, testing of machine/structural components, using stable tension/pressure to test the strength of materials, etc., can solve the problem of poor spraying effect, optimization of use function, spray gun There is no such thing as a good airtightness, and the detection method is simple and intuitive, and the detection is thorough.

Inactive Publication Date: 2017-06-27
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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  • Test method for double-headed manual gun

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like figure 1 As shown, a double-head manual 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, and the gun body is immersed in water. When the oil adjustment screw 4 and the air seal screw 5 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified. ;When the inner nozzle insert 1, the gun holder handle 2, and the oil seal screw 6 are immersed in water, there should be no air bubbles in their positions within 1 minute; check the air tightness of the gas adjustment screw 7: connect the gas, the gas pressure is 3KG, and the dot Switch between spraying and fan-shaped spraying. When switching, the air output at the gas regulating scr...

Embodiment 2

[0032] like figure 1 As shown, a double-head manual 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 8KG into the gun body for 60 minutes;

[0035] c. Sealing test: Connect the air pipe joint, the gas pressure is 4KG, and the gun body is immersed in water. When the oil adjustment screw 4 and the air seal screw 5 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified. ;When the inner nozzle insert 1, the gun holder handle 2, and the oil seal screw 6 are immersed in water, there should be no air bubbles in their positions within 1 minute; check the air tightness of the gas adjustment screw 7: connect the gas, the gas pressure is 4KG, and the dot Switch between spraying and fan-shaped spraying. When switching, the air output at the gas regulating screw...

Embodiment 3

[0039] like figure 1 As shown, a double-head manual 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, and the gun body is immersed in water. When the oil adjustment screw 4 and the air seal screw 5 are immersed in water, the number of bubbles emerging from their positions is less than 20 per minute, which is qualified ;When the inner nozzle insert 1, the gun holder handle 2, and the oil seal screw 6 are immersed in water, there should be no air bubbles in their positions within 1 minute; check the air tightness of the gas adjustment screw 7: connect the gas, the gas pressure is 5KG, and the dot Switch between spraying and fan-shaped spraying. When switching, the air output at the gas regulating screw ...

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Abstract

The invention relates to a double-headed manual gun testing method comprising the steps of a, a gun life test in which an automatic test machine conducts a cycle usage test for 5000 to 20000 times; b, a gun body pressure-resistant test in which the gas with a pressure of 8KG is injected into a gun body and lasts for 60 minutes; c, a sealing test in which a gas pipe connector is connected, the gas pressure of 3 to 5KG, the gun body is immersed in water, the number of bubbles are observed at each screw, and whether bubbles come out at an inner nozzle insert and a gun handle is observed; d, a test in which the liquid with a pressure of 4 to 6KG is injected, and whether the liquid leaks at a liquid pipe connector is observed; and f, a spray coating test in which the effect of atomization is observed. The testing method can detect the airtightness of multiple parts of the gun. In addition, the testing method is also for detecting the spray coating effect of different shapes, so that the spray coating effect is detected thoroughly.

Description

technical field [0001] The invention relates to the field of equipment testing methods, in particular to a double-head manual spray gun testing method. 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 indicators, and...

Claims

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Application Information

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IPC IPC(8): G01M13/00G01N3/12G01M3/06G01M3/04
CPCG01M3/04G01M3/06G01M13/00G01N3/12G01N2203/0044
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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