What are the future development trends of bottle blowing machines?

The outer packaging of beverages is a great tool to attract consumers. Looking at the relevant packaging on the market today, there are various materials, such as paper, metal cans, plastic bottles, etc. However, beverage boxes have seam marks, metal cans also have gaps to follow, and plastic bottles are basically integrally formed. Have you ever been curious like the author about what equipment is used to make plastic beverage bottles with diverse colors and shapes?

In the production process of plastic beverage bottles, the blow molding machine can be regarded as the top contributor. Just like the information conveyed by a name, the molding of plastic bottles is blown out. The raw materials are plastic pellets that soften into liquids or are made into bottle preforms. After undergoing the blow molding process of a bottle blowing machine, these raw materials become familiar plastic bottles. At present, there are two commonly used blowing methods for bottle blowing machines: hollow extrusion blow molding and injection pull blow two-step blowing. The two-step bottle blowing machine needs to first irradiate the bottle blank through an infrared high-temperature lamp, so that it softens to a suitable degree when exposed to heat before starting the bottle blowing process.

The bottle blowing machine is adapted to blow bottles of different sizes according to the size of the mold cavity. The bottle volume is between 0.25L-10L, and the smaller the blown bottle, the lower the production efficiency. Taking the products of a certain enterprise in China as an example, the company's large mold cavity series blow molding machine (applicable below 0.75L) can achieve a production capacity of 81000 bottles/hour. Therefore, the low production capacity of the large mold cavity series blow molding machine is 14000 bottles/hour, and there is a huge difference in production capacity between the two.

In today's increasingly fierce competition in the food and beverage market, more and more food companies are focusing on improving packaging production, hoping to attract consumers' attention through diversified bottle bodies and drive their consumption desire. This has also led to an increasing number of irregular bottles in the market, and the adaptation of bottle blowing machines to irregular bottles relies heavily on the replacement of bottom molds and molds. Some bottle blowing equipment manufacturers have considered this issue in the final stage of equipment design, using functional components that are difficult to disassemble and assemble. One person can replace a set of molds in just two to three minutes.

Carbonated beverages are a relatively specific type of beverage product in the beverage industry, and the gas filled inside them undergoes changes in state when subjected to collisions, heating, and other conditions, so the requirements for bottles are becoming increasingly low. At present, most of the bottle blowing machines on the market can adapt to the low requirements of carbonated beverages for bottle bodies. The products can not only adapt to the production of general water bottles but also produce CSD bottles specifically for carbonated beverage equipment. At present, the production capacity of CSD bottles using the same equipment may decrease, and relevant companies need to inquire and clarify when selecting products.

Beverages and food products can be considered a major waste of resources in the production process. Nowadays, with the increasingly low slogan of environmental protection and energy conservation, how to solve problems as a related enterprise has become a small focus of bottle blowing equipment. Although the bottle blowing machine does not involve water resource utilization, it requires heating of the mold and the use of high-pressure gas, high-pressure gas and other gas resources during the production process. It is reported that some companies have switched from pneumatic stretching to servo stretching and pneumatic sealing to mechanical sealing in blow molding machines, saving the use of low-pressure gas; We also adopt a new blowing process of three blowing and two recycling to save about half of the high-pressure gas consumption.

As a type of equipment in the packaging process, the blow molding machine needs to be used in conjunction with bottle washing machines, filling production lines, and other equipment during the specific production process, which inevitably faces the problem of equipment coordination. For many companies, their equipment is not produced by the same company and requires the collaborative use of blow molding machines and equipment from other companies. Many bottle blowing machines, by improving their own equipment and processes, can not only independently complete the bottle blowing process, but also be interconnected with filling lines and installed in integrated blowing, filling, and spinning machines for operation.

The author refers to well-known foreign bottle blowing equipment manufacturers and finds that their large bottle blowing equipment has a low production capacity of up to 82000 bottles/hour, which is similar to the corresponding equipment in China. However, there is a relatively small gap in the production capacity of equipment such as carbonated beverage bottles and large and medium-sized bottle blowing machines. In this situation, relevant bottle blowing equipment manufacturers in China also need to recognize their own limitations, increase equipment research and development investment, and achieve catching up with bottle blowing equipment as soon as possible.