A kind of manufacturing process of easy open end and easy open end

Abstract

The invention provides a manufacturing process of an easy-open lid and the easy-open lid, which belong to the technical field of machinery. It solves the problems of poor toughness and easy crushing of the existing easy-open lids. The easy-open end includes a plastic-absorbed easy-open end body, the easy-open end body is punched with pre-cut marks, and the pull ring is hot-melt connected with the easy-open end body. This production process includes the following steps: step a: select a sheet made of plastic material and perform blister molding to form an easy-open cover on the sheet; step b: press the corresponding easy-open cover on the sheet mark, and install and hot-melt connect the pull ring to form an easy-open end blank with pre-broken marks; step c, then trim the corresponding easy-open end blank on the sheet and separate it from the sheet to form an easy-open end. The easy-to-open lid is made by blister molding, and the molecules are arranged in strips and line segments. The tightness between the molecules makes the overall toughness of the lid better, not easy to be crushed, and the yield is high, and it is not easy to tear during the tearing process Crushed, easy to operate.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a manufacturing process of an easy-open lid and the easy-open lid. Background technique [0002] Easy-open lid, also known as easy-open lid, is used to seal the lid of the can with a pull ring. It is pre-engraved with a score line of a certain depth and riveted with a pull ring. When opening, it can be safely torn along the score line. Suitable for iron cans, aluminum cans, composite cans, PET plastic cans and paper cans, etc., involving oral liquid, mineral water, beverages, alcohol and canned food industries. The traditional easy-open lids are made of metal materials, so a large amount of metal materials such as aluminum, platinum, and iron are consumed every year, and the required cost is relatively high, and the easy-open lids made of metal materials are easy to scratch people after being opened. In this regard, people have developed a plastic easy-open lid. [0003] For ex...

AI Technical Summary

Problems solved by technology

[0005] The easy-open end is different from ordinary can lids. There are pre-cut marks of a certain depth and a pull ring on the lid body. Tear off the easy-open end with the pre-broken cross through the pull ring. As mentioned above, the existing plastic easy-open end is formed by injection molding, and the molecular structure of the easy-open end formed by injection molding changes during the injection molding process. , the molecules are arranged in a block-like line segment structure, the intermolecular tightness is poor, its molecular structure is similar to tempered glass, the toughness is poor, it is easy to be crushed, and the yield is low. Crushing, the fragments fall into the corresponding cans and cause the contents of the cans to be polluted

At the same time, injection molding is a mold to form an easy-to-open lid, and the production efficiency is low. For example, mass production requires a large number of molds, and the cost is relatively high.

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