Air ring type preform mouth cooling device for bottle blowing machine

Abstract

A disclosed wind-ring type bottle-parison-mouth cooling apparatus for a bottle blowing machine comprises a fixing plate, a wind ring and a scraping plate; the scraping plate is provided with three step center holes respectively with a large diameter, a medium diameter and a small diameter from top to bottom; the radial-direction side surface corresponding to the center hole with the medium diameter is provided with a wind ring air inlet, and the small-diameter center hole is a conical hole in shape with the large upper part and the small lower part and with a conical angle of beta; the wind ring is a cylinder in shape with the large upper part, the small lower part and the externally-round appearance, and the lower end of the small excircle is provided with a segment of a conical cylinder with a conical angle of alpha; the wind ring is inserted into the step center holes of the scraping plate, wherein the small excircle of the wind ring and the small-diameter center hole of the scrapingplate form ring-seam coordination, the end face of the large excircle of the wind ring and the end face of the large-diameter center hole of the scraping plate are contacted and in connection via screws, and an annular hollow cavity is formed between the medium-diameter center hole of the scraping plate and the small excircle of the wind ring; and the scraping plate is connected with the fixing plate via bolts. The wind-ring type bottle-parison-mouth cooling apparatus is capable of automatically cutting flash and blowing preform for making a blow needle be easily inserted, and helps to prolong the service life of a cutter and improve the quality of products.

Description

Technical field [0001] The invention belongs to the technical field of bottle-making machinery, and relates to a bottle blank opening cooling device for a bottle blowing machine, and more particularly relates to an air ring type bottle blank opening cooling device for a bottle blowing machine. Background technique [0002] The purpose of cooling the preform mouth is to form a significant temperature difference between the blowing needle and the plastic hollow container, so as to avoid the phenomenon of adhesion with the mouth of the plastic hollow container when the blowing needle retreats from the plastic hollow container, which will affect the quality of the plastic hollow container . [0003] There are some problems and deficiencies in the existing preform mouth cooling device: [0004] For example, the Chinese patent application number 200620063331 discloses a blow molding machine blowing device, which includes a drive cylinder and a support plate for installing the dri...

AI Technical Summary

Problems solved by technology

However, the cooling air of this device is blown vertically to the bottle mouth, so it cannot blow off the flash and affects the insertion of the blowing needle

Images