Method for preparing printed lid of aluminum easy open can

Abstract

The invention discloses a method for preparing a printed lid of an aluminum easy open can. The method is characterized in that the method comprises the following steps: (1) aluminum material pretreatment is carried out; aluminum material for preparing the lid is prepared, a specified pattern is printed on the aluminum according to requirement, internal coating is coated, and a layer of wax is sprayed on every aluminum sheet for lubrication; (2) pressing, flanging and sealing is carried out; (3) detecting is carried out; every lid is photographed by an image detecting system to differentiate disqualified lids; (4) lid reprocessing is carried out; the qualified lids are transferred to a pressing work station and every lid is provided with a ring tab by a combined punch; (5) waste material is collected and treated; (6) counting and packaging are carried out; packaged cans are put in a warehouse. The method for preparing the printed lid of the aluminum easy open can has the advantages of simple process, low production cost, high efficiency, etc.

Description

technical field [0001] The invention relates to the field of manufacturing technology of aluminum pop cans, in particular to a method for preparing printed can lids of aluminum pop cans. Background technique [0002] Aluminum cans, also known as two pieces cans, are composed of a can body and a can lid, and are manufactured on different production lines using different aluminum alloys. The can lid is composed of two workpieces, namely the lid body and the pull ring-sealing piece. The can material or can stock for making the tank body includes three kinds of extra thin strips (0.25mm-0.30mm): can body (body) material (body stock), can lid material or cover material (end stock), pull Tab stock is the most expensive among the three materials. Most of the cover materials are 5182-H19 strips, and 5052-H19 or H48 are also used; the width of the material is determined by the number of blanking stations, which affects the production efficiency of the production line. At present, ...

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Problems solved by technology

For example, in 2005, China produced 10.3 billion cans, consumed about 150,000 tons of strips with a thickness of 0.28mm, and about 70,000 tons of lid materials and ring-pull materials; while the pre-coated lid materials currently used in my country are basically imported, and the cost is relatively high. The production efficiency of the cover cannot meet the requirements, and most of the current domestic printing cover production line equipment is outdated, the production technology is backward, the production efficiency is low, the aluminum material used is thicker, the width is narrower, and the material utilization rate is low, resulting in high cost.

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