Embryo pressing rod suitable for bottle embryo pressing device of bottle-making machine

Abstract

The invention discloses an embryo pressing rod suitable for a bottle embryo pressing device of a bottle-making machine. The embryo pressing rod is a vertical rod body; the lower end of the rod body is provided with a circular sunk hole which shares the same central line as the lower rod body and through which a tail rod of a bottle embryo passes; the depth of the sunk hole is greater than the length of the tail rod; and the inner diameter of the sunk hole is smaller than the outer diameter of the bottle embryo. The lower end of the sunk hole is provided with a bell mouth with a small upper part and a large lower part; the diameter of a circular opening on the upper side of the bell mouth is equal to the inner diameter of the sunk hole; and the diameter of a circular opening on the lower side of the bell mouth is greater than the outer diameter of the bottle embryo; and the ratio of the depth of the bell mouth to the depth of the sunk hole is 1:5.9. The embryo pressing rods are arranged in the conventional bottle embryo pressing device of the bottle-making machine, namely a horizontal connection plate of the lower end of an air cylinder rod is provided with at least three vertically extending embryo pressing rods; and the three embryo pressing rods are opposite to every three adjacent supporting fingers respectively. Therefore, the bottle embryo pressing device of the bottle-making machine can be used normally. Compared with the prior art, the embryo pressing rod has the advantages of completely eliminating the radical reason why the bottle making yield is reduced, and effectively improving the bottle making yield.

Description

technical field [0001] The invention provides a component in a preform pressing device of a bottle making machine, in particular a preform rod suitable for the preform pressing device of a bottle making machine. Background technique [0002] At present, the existing preform pressing device of the bottle making machine includes: a horizontal frame, a connecting frame and a horizontal revolution chain arranged on the frame, and a vertical cylinder (usually a double cylinder or a triple cylinder) arranged on the connecting frame. , the horizontal connecting plate arranged at the lower end of the cylinder rod, the three vertically extending downward-extending embryo rods arranged on the connecting plate, the horizontal pressing plate arranged at the lower end of each embryonic rod, and several vertical supports arranged on the revolution chain Finger, the three pressure plates correspond to every three adjacent support fingers in position. [0003] When the bottle making machin...

AI Technical Summary

Problems solved by technology

When the preform is preliminarily set on the support finger and the initial position of the preform is slightly out of alignment (that is, when the preform and the support finger are not on the same centerline), since the force bearing area of ​​the pressure plate and the tail rod of the preform is very small (point Contact), the force on the preform tail rod is relatively large, therefore, the pressure plate often breaks the preform tail rod, causing the preform to be scrapped, resulting in a lower bottle-making yield, which is the root cause of the lower bottle-making yield

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