KR930007616A - Blow molding method for forming decorative attachment grooves - Google Patents

Abstract

The present invention relates to a blow molding method and apparatus for forming a decorative attachment life on the shoulder of a container such as a cosmetic container, detergent container.

The blow molding method of the present invention allows the pin to protrude from the through-hole formed in the upper wall of the blow mold for forming the final molded product to form a decorative attachment hole in the shoulder of the final molded product into the internal space of the blow mold, and then It involves blowing air into the final molded product.

In the blow mold and blow head of the first embodiment of the blow molding apparatus of the present invention for carrying out the above blow molding method, a through hole is formed in the upper wall at a position where the blow mold corresponds to the decorative attachment hole of the final molded product. A pin is embedded at the bottom of the position where the blowhead corresponds to the through hole name of the blow mold; In the blow mold of the second embodiment of the blow molding apparatus of the present invention, a three-stage through hole is formed in the upper wall at a position corresponding to the decorative attachment hole of the final molded product, and the pin portion and the head are integrally formed in the three-stage through hole. Pins and springs.

Description

Blow molding method and apparatus for forming decorative attachment hole

Since this is an open matter, no full text was included.

FIG. 1 (A)-(G) is a process diagram showing blow molding holes of a general container in which a final molded product is completed and transferred from injection molding injection, and an apparatus for each process, and FIG. 4 is a first embodiment of the present invention. Sectional drawing corresponding to FIG. 1 (F) as a figure which shows the shaping | molding process of the final molded article in which the decoration attachment name was formed using a blow mold and a blowhead.

FIG. 5 is a sectional view corresponding to FIG. 1 (F), showing a process of forming a final molded article in which a decoration attachment hole is formed by using a blow mold and a blow head as a second embodiment of the present invention.

Claims (6)

Injecting the molding agent (1) into the interior of the blank mold (3), forming the adhesive (1) into the lower part of the inner space of the blank mold (3) (step B), and forming the molding agent (1). Blowing air into the preform (8) to form the preform (8), rotating the preform (8) by 180 ° and installing the blow mold (step D), preform (8) reheating (Step E), a process of installing a blow head on the blow mold to blow air into the preform (8) to form a final molded product (Step F), and dismantling the blow head and blow mold to transfer the final molded product. In the blow molding method of the container formed in the step (G), the step F is performed by the pins from the through-holes formed in the upper wall of the blow mold to the inner space of the blow mold in order to form a decorative attachment hole in the shoulder of the final molded product. Blow out and blow air into the preform (8) Blow molding of the container, characterized in that the step of forming a final shaped article air. The position of the pin protruding into the inner space of the blow mold is a position corresponding to the ornament attaching hole of the final molded product, and the length of the pin protruding into the inner space is equal to the depth of the ornament attaching hole. Blow molding method of container. The molding agent 1 is injected into the blank mold 3, the molding agent 1 is brought into close contact with the lower portion of the inner space of the blank mold 3, and air is blown into the molding agent 1. In the blow mold and blow head of the apparatus for forming the preform 8 into the final molded product, the through hole name 14 is formed in the upper wall at the position where the blow mold 13 corresponds to the decorative attachment name of the final molded product. And the blow mold (15) of the blow molding apparatus, characterized in that the pin (16) is embedded in the bottom surface of the blow head (15) corresponding to the through hole (14) of the blow mold (913). The diameter of the through hole 14 of the blow mold 13 is larger than the diameter of the pin 16, and the protruding length of the pin 16 from the bottom of the blowhead 15 is the through hole 14. Blow mold and blow head of a blow molding machine, characterized in that the sum of the length of the) and the depth of the decorative attachment hole of the final molded product. A preform formed by injecting the molding agent 1 into the blank mold 3, bringing the molding agent 1 into close contact with the inner space of the blank mold 3, and blowing air into the molding agent 1. In the blow molding apparatus of the blow molding apparatus which shape | molds the molded article 8 to a final molded article, the three-step through hole 19 is formed in the upper wall of the position corresponding to the decoration attachment hole of the final molded article, The pin 20 inserted into the life preserver having the smallest diameter and the head inserted into the life preserver having the largest diameter are integrally formed with the pin 20 and the middle diameter hole of the three-stage through hole 19. Blow molding of the blow molding apparatus, characterized in that the spring 21 is configured in the three-stage through hole (19). The blow molding apparatus according to claim 5, wherein the total length of the pin (20) is equal to the sum of the length of the three-stage through hole (19) and the depth of the decorative attachment hole of the final molded product. ※ Note: The disclosure is based on the initial application.