Talk about the working characteristics of the sealing machine

The working feature of the can sealing machine is to manually fasten the can lid, then press the can body tightly between the pressure head of the sealing machine and the supporting bottom plate or support plate, and then seal it.

There are two types of edge sealing methods: ①the tank body rotates with the indenter; ②the tank body is fixed between the indenter and the support plate and cannot rotate. The latter is more suitable for sealing juice-containing cans. Because the can body does not rotate, the liquid in the can can be prevented from splashing under the action of centrifugal force, resulting in insufficient net content; the sealed can enters the sealing chamber of the can sealer, and the air in the can is extracted through the pipe connected to the vacuum pump, and then a secondary seal is performed.

This machine has an automatic shutdown function: it automatically starts when there is a can with a lid, stops when there is a can without a lid, automatically shuts down when overloaded, and cannot start when there is insufficient vacuum. The production capacity is 50 cans per minute. Suitable for special-shaped tanks with a large diagonal of 130 mm and a tank height of 22 to 96 mm. This can sealing machine has the advantages of simple structure, convenient maintenance operation, small size and light weight. my country's aluminum can production began in the 1980s, and after more than 20 years of development, production capacity has been formed. There are currently 26 canning production lines in the country, with an annual production capacity of more than 11 billion cans. In 1996, only 500 million cans were sold in China, while in 1998, national can consumption reached 600 million. By 2004, the total demand for cans nationwide was about 800 million, consuming about 180,000 tons of aluminum. However, judging from the current consumption of aluminum cans, the per capita consumption is only 6, which is a huge gap from the 400 per capita in the United States. With economic growth and rising national consumption levels, the amount of aluminum used in can sealers will further increase.

It is estimated that domestic aluminum can production will reach 290,000 tons by 2010. With the continuous advancement of technologies such as sealing machinery in tank-making companies, the thickness of aluminum strips for tank bodies has been reduced from 0.334 mm in the last century to 0.250 mm; the thickness of aluminum strips for tank lids has also been reduced from the original 0.39 mm to 0.24 mm. In order to improve production efficiency, various can manufacturers also rely on advanced technology to continuously improve the molding speed of cans. In the mid-1980s, the production capacity of the U.S. canning line was about 800 cans/minute, and today it has reached 2,000 cans/minute.