The process of misalignment stamping line is: coiling → uncoiling → leveling → length-feeding → punching 1 → punching 2, finished outputting 1 → cutting waste, finished product output 2. Dislocation stamping discharge as shown below: There are not many stamping factories in China that use misplaced stamping. Most of them are old craftsmanship. Mainly there are the following factors: (1) Small-scale barrel factory, small production and sales volume, no financial strength. Even if the investment is not worthwhile; (2) the import line is expensive. (3) Due to technical and institutional reasons, due to the fact that there are no successful dislocation press lines in line with the national conditions for each drum plant to choose from; (4) In recent years, the steel drum market has been sluggish, and manufacturers and users have felt that the risk of the misaligned press line is higher It is difficult to make up your mind and so on. Zhejiang Weixian Drum Machinery Mould Factory successfully manufactured the misalignment stamping line and provided various steel drum plants with the possibility of selecting conditions. The line consists of uncoiler, leveling machine, two punches and shears. Adopting hydraulic feed and PC control, it has the advantages of accurate feeding, stable operation, etc. The whole line includes the die price of about 1.3 million yuan.
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At present, in China's steel barrel industry, large-scale foreign-funded or Sino-foreign joint ventures are equipped with such misaligned stamping lines, such as Nanhai Grease, Donghai Grain and Oil, Beihai Grain and Oil, and Changde in Xinjiang. Some are or are planning to have this press line. Dislocation stamping is an indispensable new process method used by the steel barrel industry to increase plate utilization, reduce costs, and facilitate participation in market competition.
The 1219mm board is used for 200 litre drums. 1225mm plate is used for inner diameter 571.5 steel drums. At present, most steel drum plants use 660 mm special plates to punch the top of 200 liters steel drums. The top and bottom materials for each drum are 660×2×660×1.2×7.85=8.206 kg. The use of misaligned stamping lines for each barrel is 1219 × 656 × 1.2 × 7.85 = 7.533kg. Each 200-liter barrel can save 0.673kg. If the sheet is priced at 4 yuan per kilogram, each 200 litre steel drum can reduce the cost of 2.69 yuan, and its economic benefits are obvious. If the annual output is calculated based on 200,000 barrels, the cost savings will be 538,000 yuan in one year. It can be seen that foreign-funded or Sino-foreign joint ventures have been equipped with misplaced press lines and have increased their strength in participating in market competition. There is no calculation of the difference between the coil and the length of the flat plate and the increase in labor productivity.