Automatic production line and process for PET plastic bottle preforms

Abstract

The invention discloses an automatic production line and process for PET plastic bottle preforms. The automatic production line for the PET plastic bottle preforms comprises a raw material hopper, a drying machine, an injection molding machine, a preform sorting machine, an automatic inspection machine and a preform hopper which are sequentially arranged. A transferring device between the preformsorting machine and the automatic inspection machine is a bottle preform conveying device. The automatic inspection machine is composed of a first detection unit, a second detection unit, a removal unit and a controller used for controlling the first detection unit, the second detection unit and the removal unit. The production process for the PET plastic bottle preforms comprises the following steps of S1, material preparation; S2, formation; S3, sorting; S4, automatic inspection; and S5, boxing and treatment. By adoption of the automatic production line and process for the PET plastic bottlepreforms, the automation degree of the bottle preform production line is effectively improved, and the production efficiency of the bottle preforms is also improved; and the production flow of the whole process is more stable, and the yield of the bottle preforms is increased.

Description

Technical field [0001] The invention relates to an automated production line, in particular to an automated production line and a process for PET plastic preforms. Background technique [0002] PET, the full name is polyethylene terephthalate, its molecular structure is highly symmetrical and has a certain crystal orientation ability, so it has high film-forming properties. At the same time, PET has good optical properties and weather resistance, and amorphous PET has good transparency. In addition, PET has excellent friction resistance, dimensional stability and electrical insulation. Therefore, bottles made of PET have good mechanical properties, good transparency, non-toxicity, anti-permeation, light weight, and high production efficiency, so they are widely used. [0003] Nowadays, the two-track clamping and transportation method is widely used in the preform production line. In transportation with an inclined angle, the gravity of the preform is directly used to realize the...

AI Technical Summary

Problems solved by technology

Generally, the road section before the preform slides is not inclined, and a transmission device such as a pulley can be installed to drive the preform, but it is difficult to avoid the influence of the pulley on the surface of the preform

[0004] In the self-inspection, the pinch wheel drives the preform equidistantly to the preform and detects it at a uniform speed and orderly, but the disadvantage is that when the pinch wheel drives the preform, the imaging effect of the surface that touches the preform is in a viewing direction It is not very good, which affects the detection efficiency and yield, so it is necessary to detect in multiple viewing directions to ensure better detection efficiency and higher yield

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