Bottle cap forming mold with internal thread at both ends

Abstract

The invention discloses a molding die for a bottle cap with internal threads at two ends. The molding die comprises a movable die plate and a fixed die plate, wherein a hot runner which is communicated with a cavity after die assembling is formed in the movable die plate, a fixed plate is also arranged below the fixed die plate, an ejection plate is arranged between the fixed plate and the fixed die plate, and an ejection rod which is aligned with a molding cavity is arranged on the ejection plate; sliding plates are respectively arranged on two sides of the movable die plate and the fixed die plate, an oil cylinder and a motor are fixed on each sliding plate, an output shaft of the oil cylinder is fixedly connected to the fixed die plate, and a driving gear is arranged on an output shaft of the motor; a sliding block is arranged in the movable die plate in a sliding way, the sliding block is fixedly connected with the sliding plates, a core pulling rod is arranged in the sliding block in a penetrating way, a thread section is arranged on the core pulling rod, and the thread section of the core pulling rod is positioned in the molding cavity after die assembling; a driven gear is arranged on the core pulling rod, and meshed with the driving gear; and the thickness of the driving gear is greater than the thickness of the driven gear, so that the driven gear can move on the driving gear. The molding die disclosed by the invention can achieve automatic demolding of the bottle cap with internal threads at two ends, so that the product manufacturing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a bottle cap molding die with internal threads at both ends. Background technique [0002] In the prior art, bottle caps with internal threads and deep holes, especially bottle caps with internal threads at both ends, require thread inserts to be placed into a mold for molding. First make an insert that matches the bottle cap screw and deep hole, put the insert into the mold, take out the insert together with the product after molding, and then manually transfer the insert out of the product. Its disadvantages are: the positioning of the inserts in the mold may be inaccurate, it is difficult to separate the inserts from the product, it takes a long time, the work intensity of the workers is high, and the product is easy to be damaged. This leads to low production efficiency and low quality. Also do not have a kind of this type of mold that can demould automatically at present. Contents of the invention [0003] In order to ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the positioning of the inserts in the mold may be inaccurate, it is difficult to separate the inserts from the product, it takes a long time, the work intensity of the workers is high, and the product is easily damaged. This leads to low production efficiency and low quality

At present, there is no such mold that can be automatically demolded

Images