Overview
MIT paper Folding tester (model ASR-5637) is a new type of instrument developed according to the national standard GB/T 2679.5-1995 for measuring the folding resistance of paper and Cardboard. The instrument integrates parameter testing, conversion, adjustment, display, memory, printing and data processing functions, and can directly obtain statistical results of various data. Its compact structure, small size, light weight and complete functions are used for the determination of various Cardboard folding resistance.
Features
1. According to the national standard GB/T 2679.5-1995 research and development, the functional parameters meet the standard requirements.
2. Set testing, adjustment, display, memory, printing and data processing functions in one, can directly output statistical results.
3. Compact structure, small size, light weight, using horizontal table placement, easy to operate.
4. Stable performance, suitable for the determination of various Cardboard folding resistance.
5. Adopting an opto-mechatronics structure, the transmission is smooth and reliable.
Principle
The instrument is an opto-mechatronics structure. The mechanical part drives the crank-slider mechanism to translate the rack through the motor, and then drives the folding chuck to rotate back and forth 135 ° through the rack and pinion drive to complete the folding action. The tension mechanism deforms the spring by pressing down the tension rod, and the generated spring force applies the required tension to the tested paper sample. The electrical part detects the number of double folds of the paper sample through the photoelectric circuit and counts it, and controls the motor to automatically stop after the test is completed, and can realize the automatic return of the folding chuck. At the same time, the electrical part is also responsible for parameter setting, measurement display, action control, data statistics and printing.
Applications
Determination of folding resistance of various Cardboard
Standards
GB/T 2679.5 - 1995 Paper and Cardboard Determination of folding resistance (MIT folding method)
Steps
1. Prepare samples according to standard requirements.
2. Select and install the appropriate folding mouth seam distance sheet (0.50mm, 0.75mm, 0.25mm, 1.00mm optional).
3. Adjust the spring tension to the desired value (range 4.9 to 14.7N) through the tension lever.
4. Install the specimen correctly between the folding chuck and the tension mechanism.
5. Set the relevant parameters on the display panel.
6. Start the instrument and start the test.
7. After the test is completed, the instrument automatically stops and records the number of double folds.
8. Multiple samples in the same group can be tested, and the instrument automatically counts MAX Maximum, MIN Minimum, mean value and coefficient of variation.
9. Output test data and statistical results through the printer.
Notice
* Power supply voltage is AC220V, 50HZ before use.
The instrument should be placed on a stable workbench.
* Select the correct folding gap distance sheet and spring tension according to the test criteria.
When installing the specimen, ensure that it is flat, wrinkle-free, and clamped correctly.
Reliability of mechanical transmission components and spring tension mechanism is checked regularly.
When the instrument is abnormal, do not disassemble it yourself. You should contact a professional to handle it.
Keep the instrument clean to avoid dust and debris entering the interior.
