The Specific Points Of The Capping Machine Mold

1. The capping machine generally has an annular leak-proof ring on the inner wall of the top end of the plastic cover; there are also ordinary plastic drum covers that need to be matched with the inner cover, so there is no need to design a leak-proof ring;

2. The lower end of the plastic cover is connected with an anti-theft ring through a tension stiffener;

3. At the same time, the capping machine has a number of sheet-like whirling pull wings evenly distributed on the inner wall of the anti-theft ring; the plastic bucket lid designed in this way has a firm sealing, leak-proof and anti-theft performance, safe and convenient to use, and can effectively prevent containers The inner liquid is free from external pollution, which can ensure that the packaging of various liquid products meets the characteristics of national safety standards.

The capping machine cap is only a small part of the sealed container, but its sealing performance testing is very important. Here let us analyze the reasons and importance of the sealing performance testing of the bottle caps together with you. The barrier performance of standard packaging materials will directly affect the shelf life of the product. Generally speaking, the better the barrier performance of the container, the longer the shelf life of its contents. However, the sealing performance of the container is the prerequisite for achieving its barrier performance. Only when the container has good sealing performance can the effectiveness of the barrier material be ensured. Regardless of the barrier properties of the bottle body and cap, the connection between the bottle body and the cap, that is, the connection between the bottle mouth thread and the cap, is also the most likely location for leakage of the container. This position is within the detection range of the cap sealing performance. Therefore, the sealing performance of the bottle cap can basically reflect the sealing performance of the container, and it is also one of the mandatory inspection items for the bottle cap. The National Standards for Testing the Sealing Performance of Bottle Caps. The testing standards for bottle caps have clear requirements for the testing of the sealing performance of bottle caps. Depending on the purpose of the bottle cap, there are different regulations for the test method for the gas-free cap and the gas-containing cap. If there is no air cap, cut off the anti-theft ring (bar) of the bottle cap and use it for sealing with a rated torque of not less than 1.2NM. Test with a seal tester, pressurize it to 200kPa, keep the pressure under water for 1 minute, and observe whether it leaks. Air or trip; pressurize the air-containing cap to 690kPa and keep the pressure underwater for 1 minute to observe whether there is air leakage. Then increase the pressure to 1207kPa and keep the pressure for 1 minute to observe whether the bottle cap has tripped.