I. Equipment introduction

The automatic fabric vertical tester is a precision instrument used to measure the dimensional stability, tensile properties or drape characteristics of fabrics in a vertical state. Through the automatic control system, the equipment can accurately measure the deformation, elongation and other parameters of the fabric in a vertical hanging state, and is widely used in the fields of textile quality inspection, research and development, and production control.

II. Equipment composition

1. Main frame (including vertical guide rails).

2. Automatic clamping device (upper and lower clamps).

3. Force sensor system.

4. Displacement measuring device.

5. Control panel and display.

6. Data processing system.

7. Safety protection device.

III. Preparation before testing

1. Equipment inspection

(1) Confirm that the equipment is placed horizontally and the base is stable.

(2) Check that the power connection is normal (220V±10%, 50Hz).

(3) Confirm that all moving parts are well lubricated and there is no jamming.

(4) Check that the fixture is not damaged and the clamping surface is clean.

2. Sample preparation

(1) Cut the specimen according to the standard requirements (usually 300mm×50mm).

(2) The edges of the specimen should be flat and free of burrs.

(3) The number of specimens per group should be no less than 5.

(4) The specimen should be humidified under standard atmospheric conditions for at least 24 hours.

3. Parameter setting

Enter the test parameters through the control panel:

(1) Specimen length.

(2) Pre-tension (usually 5N).

(3) Test speed (standard is 100mm/min).

(4) Number of tests.

(5) Holding time (if necessary).

IV. Test operation steps

1. Power on and preheat:

Turn on the power, start the equipment, and preheat for 15 minutes

2. Fixture adjustment:

(1) Press the "fixture reset" button to return the upper and lower fixtures to the initial position.

(2) Adjust the fixture spacing to the standard distance (usually 200mm).

3. Install the sample:

(1) Place one end of the sample vertically into the upper fixture to ensure that there is no skew.

(2) Press the "upper clamp" button to fix the upper end of the sample.

(3) After applying pre-tension to the lower end of the sample, press the "lower clamp" button to fix it.

4. Start the test:

(1) Confirm that the safety protection device is closed.

(2) Press the "start test" button and the equipment will run automatically.

(3) Observe the sample status to ensure that there is no abnormality during the test process.

5. End of test:

(1) The equipment automatically stops and returns to the initial position.

(2) Record test data or print test report.

(3) Remove the tested sample.

6. Repeat test:

Replace new sample and repeat the above steps to complete the specified number of tests.

V. Data processing

1. The equipment automatically calculates and displays:

(1) Average elongation (%).

(2) Maximum force (N).

(3) Deformation recovery rate (%).

(4) Coefficient of variation (CV%).

2. Data export:

(1) Export test data through USB interface.

(2) Connect to computer and use special software for data analysis.

VI. Precautions

1. Safe operation:

(1) It is strictly forbidden to open the protective door during the test.

(2) Keep a safe distance when the equipment is running.

(3) Press the emergency stop button immediately in an emergency.

2. Maintenance:

(1) Clean the fixture and workbench after daily testing.

(2) Check the sensor accuracy regularly (recommended once every 3 months).

(3) Fill the guide rail with special lubricating oil every month.

3. Other precautions:

(1) Avoid using in a strong electromagnetic interference environment.

(2) When testing different fabrics, it is necessary to adjust the appropriate clamping force.

(3) Overloading will damage the force sensor.

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