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The forming mechanism of the handle mounting hole of the rear-mounted pet blowing mold

A molding mechanism and rear-mounted technology, which is applied in the field of plastic molds, can solve the problems of high sealing requirements, easy wear of sealing rings, and low service life.

Active Publication Date: 2017-09-01
GUANG DONG XING LIAN PRECISE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to have greater power performance, the existing handle mounting cavity forming mechanism often uses high-power equipment as the power device. Specifically, it uses high-pressure gas, the relative sliding of inclined surfaces and the cooperation of springs to realize the extension and contact of the mechanical arm. Retraction, the whole mechanism has a high requirement for sealing when working, and because the high-pressure gas needs to overcome both the retraction force of the mechanical arm and the reaction force of the spring, the pressure of the high-pressure gas required is very high. In addition, Because the high-pressure gas will cause ear-piercing noise during the process of on or off, at the same time, the sealing ring inside the mechanism is easy to wear, the spring is easy to fatigue and break, and the service life is low; the mechanism is easy to get stuck, causing shutdown and affecting production
The forming mechanism of the entire handle installation cavity has a complex structure and high maintenance costs, which is not conducive to the reduction of production costs of enterprises

Method used

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  • The forming mechanism of the handle mounting hole of the rear-mounted pet blowing mold
  • The forming mechanism of the handle mounting hole of the rear-mounted pet blowing mold
  • The forming mechanism of the handle mounting hole of the rear-mounted pet blowing mold

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Experimental program
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Effect test

Embodiment 1

[0051] This embodiment provides a method for forming a post-mounted handle PET bottle blowing handle installation and fixing hole, which is characterized in that it includes the following steps: S1: Put the PET preform into the PET bottle blow molding cavity, and inject high-pressure gas to carry out Blow molding; S2: PET handle installation and fixing hole forming mechanism stretches out, and fits with the PET bottle in blow molding to form a handle installation and fixing hole; S3: PET handle installation and fixing hole forming mechanism exits, PET bottle blow molding The molding cavity is opened and the PET bottle is taken out.

[0052] See attached figure 1 to attach figure 2 As shown, this embodiment also provides a low-pressure molding mechanism for the handle mounting hole of the rear-mounted PET blowing mold to realize the molding method. The handle mounting hole low-pressure forming mechanism includes an active rod 1, a cylinder for driving the active rod 1 to mov...

Embodiment 2

[0057] See attached Figures 7 to 8 As mentioned above, the only difference between this embodiment and the first embodiment is that this embodiment only includes one set of forming components 2, and the forming components 2 are directly driven by the cylinder. Specifically, the cylinder is directly connected to the rack 2011 of the rack and pinion transmission 201 mechanism, so as to realize the forming action of the forming component 2 .

Embodiment 3

[0059] See attached Figure 9 to attach Figure 10 As shown, the handle mounting hole forming mechanism of a rear-mounted PET blowing mold described in this embodiment. The handle mounting hole forming mechanism includes a pair of first drive rods 3 and second drive rods 4 arranged symmetrically at intervals overlapping each other, and a pair of air cylinders respectively used to drive the first drive rod 3 and the second drive rod 4 to reciprocate linearly. (not shown in the figure) and at least one set of second forming components 5 hinged between the first driving rod 3 and the second driving rod 4 , in this embodiment, there are two sets of forming components.

[0060] Each second molding assembly 5 includes a pair of connecting rod assemblies 501 and a pair of telescopic mechanical arms 2042 for forming handle mounting grooves, wherein each connecting rod assembly 501 includes a pair of connecting rods whose ends are mutually hinged together, and The other ends of the p...

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Abstract

The invention provides a method for forming a handle mounting hole of a rear-mounted PET bottle blowing mould, which comprises the following steps: S1: putting a PET bottle embryo into a PET bottle blow molding cavity, and injecting high-pressure gas for blow molding; S2 : The PET handle mounting and fixing hole forming mechanism extends out, and fits the PET bottle in the blow molding process to form a handle mounting and fixing hole; S3: The PET handle mounting and fixing hole forming mechanism exits, and the blow molding cavity of the PET bottle is opened. The PET bottle is taken out; simultaneously the present invention also provides a low-pressure molding mechanism for the handle mounting hole of the post-mounted PET bottle blowing mould, including a blow molding cavity for PET bottle blow molding and a blow molding cavity that cooperates with the blow molding cavity. The low-pressure molding mechanism used to form the fixing groove for the handle of the PET bottle; through the cooperation of the low-pressure molding mechanism and the blow molding cavity, the blown PET bottle body is extruded by the high-pressure gas in the inner cavity and the external telescopic mechanical arm. The corresponding upper and lower handle installation positions on the outside of the PET bottle are formed with handle installation grooves.

Description

technical field [0001] The invention relates to the technical field of plastic moulds, in particular to a molding mechanism for a handle mounting hole of a post-mounted PET bottle blowing mould. Background technique [0002] During the blow molding process of PET (polyethylene terephthalate) bottles in the bottle blowing mold, it is necessary to adopt a set of handle mounting cavity forming mechanism to cooperate with the plastic bottle cavity so that the plastic bottle shell can be blown during blow molding. During the forming process, a handle installation groove is formed on the corresponding handle installation position on the outer side of the plastic bottle shell. Among them, since the blowing gas inside the plastic bottle is a high-pressure gas during the blow molding process, the handle installation cavity forming mechanism used for the handle installation groove can only be connected with the inside of the plastic bottle cavity when it has a large power. The high-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/28B29C49/42B29C49/48
Inventor 谢国基姜晓平胡青春梁炎均曾艳祥
Owner GUANG DONG XING LIAN PRECISE MACHINERY