Bottom-to-bottom bottle blowing mold and manufacturing method thereof

Abstract

The invention discloses a bottom-to-bottom bottle blowing mold which comprises a mold frame, wherein the upper end of the mold frame is provided with an upper bottleneck insert, an upper mold cavity is arranged below the upper bottleneck insert, an upper bottle bottom insert is arranged below the upper mold cavity, a lower bottle bottom insert is arranged below the upper bottle bottom insert, a lower mold cavity is arrange below the lower bottle bottom insert, a lower bottleneck insert is arranged below the lower mold cavity, a folding part with an elastic bulge in the process of demolding is arranged between the upper bottle bottom insert and the lower bottle bottom insert, and the stretched length of the folding part is greater than or equal to the sum of the inwards sunken depth of the bottom of the upper mold cavity and the inwards sunken depth of the bottom of the lower mold cavity. The invention also provides a manufacturing method of the bottom-to-bottom bottle blowing mold. According to the invention, the problems that the production is abnormal, the qualified rate is low, and the capacity is low, and the like in the prior art are effectively solved; and the bottom-to-bottom bottle blowing mold has the characteristics of simple structure, easy operation, flexible operation, labor saving, high capacity, high production efficiency and high qualified rate, and the like.

Description

technical field [0001] The invention relates to a bottom-to-bottom bottle blowing technology in a blow molding process, in particular to a bottom-to-bottom bottle blow mold and a manufacturing method thereof. Background technique [0002] In the prior art, in order to make the bottle stand stably, the bottom of the blow-molded bottle is designed to be concave. When the bottom of the molded product is depressed within 0.8mm, forced demoulding can be completed. When the depression is 0.8-2.5mm, there will be problems in demoulding. When the depression exceeds 2.5mm, it is necessary to design the bottom on the mold. Solve the demoulding problem. [0003] Due to the depression of the bottom of the blow-molded bottle, the bottom of the mold will move the product upward during demoulding; and the mold with a bottom-to-bottom structure design, because the product needs to move up and down at the same time, so the gap between the notch at the bottom of the product and the tail mate...

AI Technical Summary

Problems solved by technology

[0003] Due to the depression of the bottom of the blow-molded bottle, the bottom of the mold will move the product upward during demoulding; and the bottom-to-bottom structure of the mold, because the product needs to move up and down at the same time, so the gap between the notch at the bottom of the product and the tail It will break, and the products below cannot be demolded smoothly, and the broken products will stay in the mold cavity, causing production to stop

[0004] In summary, there are problems such as abnormal production, low pass rate and low production capacity in the prior art

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