Kautex suction blow molding machine

Traditional extrusion blow molding For tubular parts with extremely three-dimensional rotating shapes, such as fuel injection pipes for auto industry or automotive air intake pipes, or for household appliances, inevitably leaving flashes on the parting line , resulting in high flash rates and weld seams around. In extreme cases, the flash is even several times the weight of the product itself. Typical extra long welding seams also require considerable clamping force.

Here, the 3D blow molding machine from Kautex Machinery Manufacturing Co., Ltd. can produce without flash (or with only a few flashes). This can significantly save raw materials, energy consumption and production cycles, as well as the funds spent.

Various three-dimensional blow moldings

As one of the pioneer companies of three-dimensional blow molding, Kautex Machinery Manufacturing Co., Ltd. from Bonn, Germany has many years of rich experience in this field. Depending on the geometry and complexity of the blow-molded product, Kautex Machinery Manufacturing Co., Ltd. offers a variety of different solutions for the three-dimensional tubular series.

In the inhalation blow moulding process, the parisons are conveyed directly from the die of the parison die (in most cases a stock cylinder die) into a closed blow mould and then passed through the blow mould The "vacuum" air flow is guided through. This air flow also prevents premature contact of the parison with the mold. Once the parison is exposed at the bottom of the parison, the parison is cut by the upper and lower gripper assemblies, and the blow-up and cooling process begins. Inhalation blow molding only requires a relatively simple and inexpensive blow mold.

China's first inhalable blow molding machine was sold to Ningbo Junsheng Company in Ningbo. Ningbo Junsheng Group first entered the real estate industry in China. After the success of the real estate industry, they entered the auto industry. They cooperated with TRW, an automotive supplier, to establish a joint venture to provide injection moldings for major auto manufacturers in China. Another area of ​​the Johnsonian Group is the baby chair business. They exported about one million blow-molded infant seats to foreign countries, mainly in Europe.

Kautex's SB8 machine

The blow molding machines used to produce blow-molded baby seats have all started their business in plastic tube products. It is a traditional blow molding process with flash. They produce ductwork products for Volkswagen, General Motors and other automobile manufacturers. After winning the first round in the field of plastic pipe fittings, both wins decided to enter the three-dimensional blow molding industry to produce flash-free parts, which greatly reduced the generation of flash. From then on, they began to cooperate with Kautex Machinery Manufacturing Co., Ltd. and ordered an in-line blow molding machine model number K3D-SB8. The first target part is the fittings of the latest Volkswagen Santana (Santaana 3000) type car engine. This is the first blow molding machine made in Germany by Johansson and the first inhalation blow molding machine used by a Chinese company.

This model K3D-SB8 machine is equipped with two extruders and a special die with a sequential co-extrusion design. Sequential co-extrusion, also known as "hard-soft-hard" extrusion technology, involves the extrusion of two different raw materials one by one in sequence. By selecting different hardness raw materials, for example, it is possible to produce products with soft tails and hard mid sections or to produce products with integrated corrugated sections. In order to simplify the operation of the machine, the control panel is equipped with a Chinese display page. Kautex Machinery Manufacturing Co., Ltd. helped to win the design of the mold, so that all wins can use the German design of Chinese-made molds.

Source: Plastic Industry Network