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A device for injection stretch blow molding of plastic hollow products

A molding device and injection molding technology, applied in the field of processing and molding devices for plastic products, can solve problems such as difficulty in ensuring quality, and achieve the effects of ensuring accuracy and flexibility, improving work efficiency, and improving work speed.

Active Publication Date: 2017-09-26
湖南昊兴机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to propose a new one-step injection stretch blow molding device for the current domestic production of one-step injection stretch blow molding equipment, which has the problem of multi-station difficulty in ensuring quality

Method used

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  • A device for injection stretch blow molding of plastic hollow products
  • A device for injection stretch blow molding of plastic hollow products
  • A device for injection stretch blow molding of plastic hollow products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] as attached Figure 1-5 As shown, a plastic hollow product injection stretch blow molding device includes a machine base 1, an injection molding device 2 and a stretch blow molding device 3 are installed on the machine base 1, and the injection molding device 2 is located on one side of the machine base. The other side of the seat 1 is a stretch-blow molding device 3, which is characterized in that the injection molding device 2 is a single-screw injection molding device driven by a single concentric oil cylinder, and a single concentric oil cylinder is used to push a single-screw injection molding device; the injection molding device 5 consists of An injection mold forming device 4 is combined with a horizontally arranged single-screw injection device 5 driven by a single concentric oil cylinder. The single-screw injection device 5 driven by a single concentric oil cylinder melts the plastic pellets and injects them into the injection mold forming device 4, with a botto...

Embodiment 2

[0054] The basic method of the second embodiment is the same as that of the first embodiment. It is an injection stretch-blow molding device for plastic hollow products. It adopts a one-step molding process to inject the molten plastic injected by the injection machine into the injection mold, and form a transparent organic plastic through rapid cooling. Bottom parison, and then heat the inside and outside of the parison at another station. After reaching a certain temperature, the bottom parison is extended by a certain proportion, and then filled with compressed air to obtain the required hollow product. It is characterized in that it adopts a single cylinder Electric push the screw to inject material, and after the bottomed parison is injected into the injection molding device, the bottomed parison is taken out from the injection molding device by the rotating manipulator, and then sent to a reheating device for secondary rotary heating, and then through the rotary operation ...

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Abstract

An injection stretch blow molding device for plastic hollow products, including a machine base. An injection molding device and a stretch blow molding device are installed on the machine base. The injection molding device is located on one side of the machine base, and the stretch blow molding device is located on the other side of the machine base. , the injection molding device is a single-screw injection molding device, which uses a single-screw injection molding device; the single-screw injection molding device is formed by a combination of an upright injection molding device and a horizontally arranged single-screw injection device. The single-screw injection device injects plastic After the pellets are melted, they are injected into the injection mold of the injection molding device, and then rapidly cooled to form a bottomed parison; the stretch-blow molding device includes a stretching device and a blow molding device, and the bottomed parison is loaded into the stretch-blow molding device. Finally, through the stretch-blow synchronous mold closing mechanism, stretch-blow molding is performed under the action of the stretching device and the blow molding device; a secondary heating device is provided between the injection molding device and the stretch-blow molding device, and the bottomed parison after injection molding undergoes a secondary heating process. After heating, it is transferred to the stretch blow molding device for stretch blow molding.

Description

technical field [0001] The invention relates to a processing and molding device for plastic products, in particular to a method and device for making plastic injection-molded hollow products, which are mainly used for making large-capacity water bottles, and can also be used for other high-demand plastic bottles and plastic containers. make. The invention belongs to the technical field of plastic processing manufacturing methods and equipment. Background technique [0002] With the rapid development of plastics and their products, plastic processing and manufacturing has gradually developed into a huge industrial cluster, and almost all walks of life are using plastic products. With the continuous development of the demand for plastic parts, the methods of plastic processing are also constantly updated. Injection molding is one of the main plastic molding processing methods; the so-called injection molding is to heat thermoplastics (PC, PE, PS, PP, PVC, PA, ABS, etc.) Aft...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/06B29C49/08B29C49/64B29C49/42B29C31/08B29C45/48
Inventor 李鑫水李高虎李晓清
Owner 湖南昊兴机械科技有限公司