Die-pressing cap making machine and cap making die thereof

Abstract

The invention provides a die-pressing cap making machine and a cap making die thereof. The cap making die comprises an upper die and a lower die, the upper die is provided with a first water conveyingassembly and a second water conveying assembly at the axis of a cylindrical pipe sleeve, the first water conveying assembly comprises a spiral water conveying core and an upper die waterproof sleevearranged on the outer side of the spiral water conveying core in a sleeving mode, the spiral water conveying core is connected with an inner sleeve to form a first liquid inlet flow channel, the upperdie waterproof sleeve is communicated with an outer sleeve to form a first liquid return flow channel, the second water conveying assembly comprises a threaded core arranged outside the upper die waterproof sleeve in a sleeving mode, and a serpentine coiled core cooling flow channel is formed in the lower end in the wall body of a threaded core column core. The service life of parts in the die isprolonged, the speed is increased, the cooling effect are improved, and then the production efficiency is improved. The die-pressing cap making machine adopts the cap making die, so that the failurerate caused by the cap making die in the machine operation production process is effectively reduced, and meanwhile, the bottle cap production efficiency and quality of the whole die-pressing cap making machine are improved.

Description

technical field [0001] The invention relates to the field of cap making machine equipment, in particular to a cap molding machine and a cap making mold. Background technique [0002] China is a big packaging manufacturing and consuming country in the world. The proportion of plastic packaging in the total output value of the packaging industry has exceeded 30%. It has become a new force in the packaging industry and plays an irreplaceable role in various fields of food, beverage, daily necessities, and industrial and agricultural production. In recent years, the packaging products and packaging materials in the plastic packaging industry have grown steadily, and new packaging materials, new processes, new technologies, and new products are constantly emerging. Nowadays, all kinds of beverages, cosmetics, medicines, etc. are packaged in plastic packaging, and the structure of plastic bottles cannot lack plastic bottle caps, which often need to be produced separately. [0003...

AI Technical Summary

Problems solved by technology

Present molding and capping machines all have pressing die group, and this pressing die group comprises rotating main body and is arranged on the upper die and bottom die on rotating main body, and this upper die has cooling device, and the structural design of cooling device in the prior art is relatively Unreasonable, poor cooling effect, such as figure 1 A cooling structure for an upper mold described in , which adopts a combination of two parts (such as figure 1 Combination of A1 and A2), using the gap between the two parts (such as figure 1 D in D) to transport cooling water for cooling, in order to achieve the forming of the threaded side wall of the bottle cap, this structural design eventually leads to a thin structural wall thickness in the threaded side wall forming part (such as figure 1 As shown in B), there are many stress concentration points (such as figure 1 As shown in C), splitting into two parts leads to the weakening of the strength of the two parts, and it is easy to deform and fail during the mold clamping and demoulding process. The life of the parts is shortened, which makes the service life of the entire mold shorter and the maintenance cost increases. The production efficiency is reduced. At the same time, the split cooling structure adopted in the prior art leads to uneven flow of cooling water and insufficient cooling, which ultimately affects product quality.

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