The fully automatic sealing tester is suitable for the sealing test of packaging bags, bottles, tubes, cans and boxes in food, pharmaceutical, medical equipment, daily chemicals, automobiles, electronic components, stationery and other industries. Automatic seal tester also be carried out by falling, the sealing performance of the test piece after the pressure test. Tightness automatic tester in accordance with the relevant provisions of Test Method 15171-94 flexible member sealing performance GB / T designed and manufactured, the entire The automatic sealing tester is suitable for the sealing test of flexible packaging in food, pharmaceutical and daily chemical industries. Through the test, the sealing process and sealing performance of the flexible package can be effectively compared and evaluated, and a scientific basis for determining the relevant technical requirements is provided.
MFY-01A Automatic Sealing Tester is a kind of heat sealing performance and processing technology for detecting and testing plastic flexible packaging materials by using compressed air to generate negative pressure through vacuum original parts. The automatic sealing tester provides an advanced, practical and effective test method for the quality and reliability of plastic sealed packaging. The operation is simple, the design of the instrument is unique and novel, and it is easy to observe the test results, especially the fineness of the sealing. Hole leakage for fast and efficient detection.
Structural features and working principle of fully automatic sealing tester
Fully automatic sealing tester Structural features
It is mainly composed of special transparent vacuum chamber (plexiglass barrel), vacuum generation system, compressed air source (customer self-provided gas source outlet pressure is 0.7-1.0 MPa), pressure gauge and so on.
The main part is mainly composed of a solenoid valve, a vacuum conversion device and a pressure sensor. The PLC is controlled by the opening and closing of the solenoid valve to control the input and output of the pressure to realize different test processes. At the same time, it accurately displays the pressure and holding time of the container.
Automatic sealing tester working principle
By vacuuming the vacuum chamber, the test sample immersed in water is subjected to internal and external pressure difference, and the gas escape or water infiltration of the test sample in the vacuum chamber is observed to determine the sealing performance of the test sample.
Working principle process: difference between gas pressure inside the package and outside the package → gas expansion → gas escape → new gas balance → high gas ratio in the package → large gas expansion rate → large pressure on the packaging film → strong gas escape.
Note: The parameter setting should be based on the air ratio in the product. The air ratio is high, the gas expansion rate in the package is high, and the vacuum pressure should be set lower.
Fully automatic sealing tester technical indicators:
1 Measuring range: -90┄0KPa (Note: display pressure, display positive value)
2 Measurement accuracy: Level 1
3 Test tube inner product: φ270mm × 200 mm
4 Average air consumption: 70L/min
5 Net weight of equipment: 10kg
6 Self-contained stable compressed air source
7 Compressed air pressure range: 0.7~1.0 Mpa
Note: 1Mpa=1000Kpa 1bar=100Kpa 1psi=6.89Kpa
Fully automatic sealing tester page and introduction of each function key
- Holding pressure: refers to the set vacuum pressure holding time
- Timing: refers to the arrival of the pressure, the countdown, the end of the timer, automatic pressure relief
- Setting: refers to the set vacuum holding pressure
- Pressure compensation: refers to the number of pressures during the experiment
- Real-time pressure displayed in the middle value
- Start button: press this button, the solenoid valve opens, start vacuuming, the experiment begins
- Set button: press this button to enter the parameter setting mode and set the test parameters.
- Stop button: press this button, the solenoid valve is closed, the experiment is over
- OK button: Press this button to save the setting parameters in the parameter setting mode. In the experimental mode, the experimental results are retained after the test.
- Clear key: press this key to clear the data
- Query key: Press this key to query the experiment result.
- Left and right buttons: select the digital position to be set
- Up and down keys: select the parameter items to be set, set the number size
Fully automatic sealing tester test preparation
- Unpack the instrument and place the plexiglass beside the main unit or on the main unit. Inject a certain amount of clean water into the cylinder to a height of about 20 mm above the platen surface (but the water cannot be sucked out after adding the test sample). Cover the sealing cover of the plexiglass tube. To ensure the sealing effect, sprinkle a little water on the sealing ring.
2. Connect the pressure-stable and clean compressed air source to the inlet pipe of the instrument “compressed air†(the rear end position of the base), and connect the “vacuum output†(the rear end position of the base) and the quick connector on the plexiglass barrel.
3. Turn on the power of the main unit, turn on the main unit switch (the rear end position of the base), and let the machine warm up for 3 minutes.
Automatic sealing tester experimental operation:
1. Turn on the instrument power supply, enter the instrument initialization interface, display the instrument name and instrument model, and then enter the operation main interface.
Â
2. Press the setting button to enter the setting interface.
Press the up and down keys again to select the desired parameter item to be set, then press the left or right button to select the number to be set, and then press the up and down button to change the size. After setting, press the OK button to retain the settings and enter the experiment interface.
3. Press the clear key to clear.
4. Turn on the external air source, press the “Start†button to start the test, and the device will vacuum; after reaching the set vacuum, it will automatically enter the pressure holding state, and the pressure holding countdown will start. If the vacuum pressure inside the barrel is less than the set pressure, automatically Make pressure, the instrument records the number of times of pressure, press the OK button at the end of the experiment to save the experiment results.
5. Observe the vacuum tube, the leakage of the sample during vacuuming and the vacuum retention after the preset vacuum is reached, depending on whether there are continuous bubbles. A single isolated bubble is generally not considered a sample leak.
6. The timing is over, the test is completed, the vacuum is automatically eliminated, the sealing cover is opened, the test sample is taken out, the water on the surface is wiped clean, and the surface damage result of the packaging bag is observed.
7. During the experiment, if you need to stop, press the stop button to release pressure and stop the pressure holding state.
8. Press the Query key to enter the query interface, press the up and down keys to view the set pressure, the number of times of compression and the time of holding pressure. Press the left or right button to select the save value item. Press the start key to print the current data in the query state.
Label: fully automatic sealing tester
Rabies vaccine is an active immunizing agent used to prevent infection caused by the rabies virus. The vaccine works by causing your body to produce its own protection (antibodies) against the rabies virus.
Rabies Vaccine Injection,Rabies Antibody,Anti Rabies Dosage,Human Rabies Antibody
Changchun Zhuoyi Biological Co., Ltd , https://www.zhuoyibiological.com