Bottle blank distance separating mechanism for plastic bottles

Abstract

The invention discloses a bottle blank distance separating mechanism for plastic bottles and aims to overcome defects that existing bottle blank distance separating mechanisms can realize bottle blank distance separation only and cannot move blanks to mold closing stations. According to the technical scheme, the mechanism comprises a rack and guide rails; a distance separating assembly comprising a clamping jaw fixing seat, a clamping jaw and a distance separating chain plate is arranged on the guide rails; a distance separating groove which is parallel with the guide rails and comprises a bent transition section is formed in the rack; a left distance separating groove section and a right distance separating groove section which extend from two ends of the bent transition section of the distance separating groove are straight grooves and have equal distances with the guide rails, and the distance between the left distance separating groove section and the guide rails is larger than that between the right distance separating groove section and the guide rails; and a moving piece capable of moving in the distance separating groove is arranged in the distance separating groove and is connected with the distance separating assembly. The mechanism has the advantages as follows: the moving travel of the bottle blanks is effectively increased, a blank moving mechanism is omitted, the bottle blank distance separating mechanism can move the blanks to a mold closing station, can separate distances reliably and has the long travel, and fault points are effectively reduced.

Description

technical field [0001] The invention belongs to the field of plastic bottle production, and in particular relates to a preform spacing mechanism for plastic bottles. Background technique [0002] The bottle blowing machine needs to heat the preform before sending it into the mold to blow it into a bottle. At present, plastic bottle blowing machines at home and abroad mainly use the heating method of "short distance heating" to heat plastic preforms. As the name suggests, "Short distance heating" is to reduce the distance between the plastic preforms during heating, so that the plastic preforms are arranged more compactly before heating, so that the heat generated by the heating tube in the heating box can be fully absorbed and the power can be saved. However, "shrink heating" needs to increase the distance between the plastic preforms before entering the blowing mold after heating, and divide the compactly arranged preforms into the adjacent cavity spacing of the multi-cavi...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that the existing preform spacing mechanism cannot directly send the preform to the mold clamping station, and provides a preform spacing mechanism for plastic bottles, which can reliably divide the preform and effectively extend the preform. The moving stroke can be used to omit the preform moving mechanism, so that the preform separation mechanism can move the preform to the mold clamping station. This mechanism has reliable separation distance and long stroke, which can effectively reduce failure points

Images