Forcible blank bottle loading device for plastic bottle blowing machine

Abstract

The invention discloses a forcible blank bottle loading device for a plastic bottle blowing machine, which comprises a loaded support, wherein a loaded bar and a blank inserting head are arranged in the loaded support, roller wheels are arranged at the bottom of the loaded bar and are contacted with a loaded track, the blank inserting head is matched with the inner diameter of a plastic blank bottle that is arranged between a small turntable and a big turntable, the forcible bottle blank loading device for the plastic bottle blowing machine is characterized in that a blank pressing support and an adjusting bolt are arranged at one side of the loaded track and are connected with a blank pressing track, the loaded bar is provided with a compression spring, and one sides of the roller wheelsare connected with a compression wheel that is contacted with the blank pressing track. For the forcible loading device in the scheme, the inner diameter deviation of a bottle neck can be changed to be plus or minus 0.15mm from originally plus or minus 0.05mm, so that the application range of the blank inserting head is wider, and the requirement for the production accuracy of a blank injection system can be also reduced so as to further save cost.

Description

technical field [0001] The invention relates to a forced loading device for preforms of a plastic bottle blowing machine, which belongs to the field of plastic machinery. Background technique [0002] Plastic blow molding machines are used to produce plastic hollow containers, such as mineral water bottles, oil bottles, cosmetic bottles, etc. Before stretch blow molding, the plastic preforms need to be heated and softened first. When the plastic preforms enter the heater, the preforms need to pass through a small turntable and When the large turntable is engaged, the inserting head inserts (loads) the inner diameter of the plastic preform, thereby bringing the plastic preform into the heater for heating. In the prior art, when the plastic preform is loaded, the position where the inserting head fits the inner diameter of the plastic preform is elastic, which can make the two fit firmly and complete the heating process. But sometimes if the inner diameter of the plastic pref...

AI Technical Summary

Problems solved by technology

But sometimes if the inner diameter of the plastic preform is too small, especially the hot-filling crystal opening, when the plastic preform opening is too small, the inserting head can only be inserted a little bit or cannot be inserted, causing the plastic preform to fail to load

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