Because Pull-tab easy-open lidThere are many types of forming processes in the ring, and the mold shells are different. The basic elements are not easy to be complicated. However, in order to achieve stable performance and high-quality mass production, some seemingly simple processing techniques can become complex. While improving the measurement accuracy of high-speed punching machines, it is also necessary to compensate for the temperature of the high-speed punching machine and the mold shell. This is also a very complex system. The pull-tab easy-open lid, also known as the pull-down can lid, is a design commonly found on beverage bottles. This type of outer packaging lid is very easy to open; you can simply pull off the tab to open it.

There are mainly two types: one is the gap type, where when the pull-tab is pushed, the can lid opens a gap to allow the liquid packaging, such as soda bottles, to be sucked out or poured out; the other is the opening type, where most can lids are released when the pull-tab is pulled, which is beneficial for removing solid, powdery, or highly viscous packaging materials, and is also commonly used for various types of easy-open bottom lids for eight-treasure porridge.

The principle of opening an aluminum pull-tab easy-open lid is: stamping the prefabricated component at the lid interface to reduce its partial tensile strength, causing concentrated thermal stress around the pull-tab. Under the influence of shear stress, the stamped position cracks and opens. Generally, the pressure difference inside and outside the can is small, and the shear stress generated by the stamping is small and symmetrical, so the can is not prone to spontaneous cracking, ensuring the safety of canned fruits during transportation and storage.

An aluminumPull-tab easy-open lidMethod of preserving dried fruits

Aluminum easy-open lids for dried fruits should be stored in a cool, dry, and ventilated place, avoiding exposure to strong light, not placing them in closed containers, and not putting them in packaging bags. The recommended storage method is to place them in the refrigerator. If there is no refrigerator, it is suggested to keep them in a cool, dry, and naturally ventilated place, which can maintain the quality of the dried fruits. If stored properly, dried fruits can generally be preserved for more than a year without mold. If a large quantity of dried fruits is stored, it is advisable to use moisture-absorbing agents, but these agents should not be ingested, especially kept away from children to prevent accidental swallowing. When storing dried fruits, some tea can also be placed, as tea can absorb moisture and ensure that the dried fruits do not become damp. The amount of tea should not be excessive, just enough according to the quantity of dried fruits.

The formation and development of every industry cannot be separated from the development of technology. This is also driven by the continuous development of market demand for the industry, prompting relevant personnel to continuously innovate products. In the manufacturing industry, this requirement is crucial. For example, the production of pull-tab easy-open lids has evolved from traditional craftsmanship to more advanced technological production. What are its characteristics? At the same time, what should we pay attention to when using it?

This is the outer lid of metal cans in the canned fruit industry. Production process: copper sheet → back cover forming → assembly forming → post-processing process → image estimation → outer packaging of the back cover. There are two types of easy-open lids: ring-shaped and non-ring-shaped. Non-ring-shaped refers to shapes like oval, square, horseshoe, etc. Used for sealing and opening canned fruits. Defined as an outer lid that has a certain depth of pre-drawn lines and is riveted, which can be safely torn along the drawn line when opened. It is a relatively good anti-counterfeiting seal. Additionally, it is worth noting that the area around the mouth will have an uneven shape. This shape is used to increase compressive strength, preventing deformation when tearing. Of course, if there is such a structure here, it would be impossible to tear it tightly along the edge.