Bottle blowing machine

Abstract

The invention provides a bottle blowing machine which comprises at least one conveying track and at least one bottle blowing area, wherein multiple processing bottle blanks are conveyed from a feed area to a discharge area via the conveying track; the heating operation is performed in at least one heating area arranged around the conveying track; the space between the processing bottle blanks on the conveying track is defined as a first pitch; the bottle blowing area is used for performing the bottle blowing operation on the processing bottle blanks after the heating operation according to a second pitch; a variable-pitch platform is further arranged between the discharge area and the bottle blowing area; the variable-pitch platform can be used for taking down the processing bottle blanks in the discharge area, converting the first pitch of the processing bottle blanks into the second pitch and conveying the bottle blanks to the bottle blowing area. Therefore, the bottle blowing machine performs the heating operation on the conveying track at a relatively small first pitch and can realize enough heating time and storage quantity of the processing bottle blanks.

Description

technical field [0001] The present invention is related to a blow molding machine for plastic bottles. More specifically, it refers to a method of heating the preforms with a smaller first pitch in the heating zone, and then using a variable pitch platform to heat the preforms. After the completed preform is converted to a larger second pitch, the bottle blowing operation is carried out, so that the blow molding machine has sufficient heating time and processing preform reserves, and the bottle blowing operation can be carried out smoothly. Background technique [0002] Existing bottle blowing machines such as Taiwan Patent No. M340169, as shown in the first figure, are a known production line for manufacturing plastic bottles and cans. Unit, a finished product collection unit. The feeding unit positions the blanks one by one on the blank seat of the conveying unit, and the conveying unit transports the blanks to the heating unit for heating, so that the blanks are in a sta...

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Problems solved by technology

[0004] However, the inventor believes that there is still room for further improvement in the configuration of the bottle blowing machine. For example, the distance between the blanks must be greater than the distance between the width of the finished product in order to be able to blow successfully in the molding unit. However, due to the blank seat The size and spacing are fixed, and the blanks can only be arranged with the same loose spacing in the feeding unit and heating unit, resulting in a lot of waste of space and reducing the storage of blanks

Moreover, the configuration of conventional conveying units, whether single row or multi-row, is mostly extended horizontally, which requires a large configuration space. In addition, the single-row / multi-row switching mechanism is complicated, which will also increase the space required for the heating unit.

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