Thesis on how to strengthen the innovative design of blow molds

Multi-mouth bottle blow mold design scheme

I. Introduction

Multi-mouth bottles are a kind of common plastic containers, which are widely used in food, beverage, cosmetic and other industries. And the production of multi-mouth bottles can not be separated from high quality blow molds. In this paper, we will discuss the design scheme of blow mold for multi-mouth bottles to improve production efficiency and product quality.

Second, mold structure design

1. Mold structure

Multi-mouth bottle blow mold is usually composed of mold seat, mold core and mold cavity. The mold seat is used to fix the mold, the mold core and mold cavity is to form the bottle cavity. In order to improve the production efficiency, we can consider adopting the mold quick-change system, which is convenient to change the bottles of different caliber and shape.

2. Bottle neck design

The bottle neck design of multi-mouth bottles needs to take into account the sealing and easy opening of the product. The bottle should have a good seal to prevent product leakage and deterioration. At the same time, the bottle mouth should be designed to be easy to open and close, convenient for consumers to use.

3. Thickness uniformity

In order to ensure the strength and stability of the bottle, mold design should be considered when the bottle thickness uniformity. Too thick or too thin bottle wall will affect the quality and appearance of the product. Through reasonable mold design and control, the uniform distribution of bottle wall thickness can be achieved.

4.Exhaust system

During the blow molding process of multi-mouth bottles, the air inside the mold cavity needs to be discharged through the exhaust system to avoid air bubbles and defects in the bottles. Therefore, the exhaust system should be reasonably set up in the mold design to ensure that the air is fully discharged, so as to obtain high-quality products.

Material Selection

1. Plastic material

Multi-mouth bottles are usually made of polyethylene (PE), polypropylene (PP) and other plastic materials. Different plastic materials have different characteristics and scope of application, so the mold design needs to be based on the specific requirements of the product to choose the right material.

2. Mold materials

Multi-bottle blow molds are usually made of high-quality wear-resistant alloy steel to ensure the durability and precision of the mold. The selection of mold materials should take into account the service life of the mold, production efficiency and cost and other factors, in order to achieve cost-effective optimization.

Fourth, the mold production process

1. Mold processing

Multi-bottle blow mold processing requires the use of precision CNC machine tools and advanced processing technology to ensure the accuracy and quality of the mold. Mould processing needs to strictly control the size and surface finish to meet the requirements of the product.

2.Hot runner system

In order to improve the production efficiency and reduce the scrap rate of multi-mouth bottles, hot runner system can be considered. The hot runner system can make the plastic material flow uniformly in the mold cavity and reduce the generation of cold material, so as to improve the quality and output of the products.

3. Mold debugging

After the mold production is completed, mold debugging is required. Mold debugging process requires temperature and pressure adjustment to ensure the stability of the blow molding process and product consistency. At the same time, it is also necessary to carry out the size of the mold testing and product quality inspection to ensure that the mold and the product meet the requirements.

V. Conclusion

The reasonableness or otherwise of the blow mold design scheme for multi-mouth bottles directly affects the production efficiency and product quality of multi-mouth bottles. Through reasonable mold structure design, material selection and mold production process, can improve the production efficiency of multi-mouth bottle, reduce the scrap rate, and ensure the quality and consistency of the product. Therefore, in the process of multi-mouth bottle production, the importance of mold design solutions can not be ignored. We hope that the multi-mouth bottle blow mold design solutions described in this paper will inspire and refer to the relevant practitioners, and promote the development of multi-mouth bottle industry.