Views: 13 Author: Site Editor Publish Time: 2022-04-01 Origin: Site
What are the selection criteria for automatic blow molding machines? The automatic blow molding machine is one of the mainstream equipment in the blow molding industry. The operation of the fully automatic machine reduces labor costs and the harm caused by misoperation. When choosing a cost-effective machine, what are the criteria to help us select automatic blow molding machines? Let me take you to find out.
1. The principle of automatic blow molding machine
After the plastic and the hopper enter the extruder barrel, with the rotation of the screw, it is forced to the direction of the machine head by the thread. Due to the resistance of the filter screen, the dividing plate and the die of the machine head at the head, and the capacity between the screw threads is gradually reduced, the advancing material is subject to great resistance, and at the same time, it is heated by the heat introduced by the barrel; on the other hand , When the plastic is under the action of compression, shearing, stirring and other forces during the movement, the friction with the barrel, the screw and the friction between the plastic molecules will generate a lot of heat.
As the temperature of the plastic in the barrel continues to rise, its physical state gradually changes from a glassy state to a highly elastic state, and finally becomes a viscous state, and is further completely plasticized. Because the screw is constantly rotating, the plasticized plastic is extruded from the die of the die at the same pressure and in the same amount, which is called a plastic product with a certain shape. After cooling and setting, the extrusion molding work is completed.
2.The production demand of blow molding products
First look at the type of product you want to make, and choose a plastic blow molding machine according to the plastic product you choose. For example, let's take a large blow molding machine as an example! Products that can be produced by the plastic molding machine: buckets, water tanks, barricades, trays, septic tanks, etc. Considering how many L-volume plastic products you need to produce, the machines selected according to different production products are also different, because in the design of production machines At times, the input cost of the manufacturer is also different, and the natural price is also different!
3. Manufacturers of blow molding machines
It is more important to choose a manufacturer of automatic blow molding machines. After the product is determined, it is necessary to communicate with the manufacturer. When choosing a manufacturer, multiple manufacturers must be compared together. It depends on the qualification and technical team of the manufacturer. For example, when selecting a large blow molding machine, the manufacturer has high requirements. At the same time, the accessories of the blow molding machine are also very important. The price of a complete set of blow molding machines. When consulting with the manufacturer, it is necessary to communicate with the manufacturer in detail about the basic requirements of the product type, product capacity, and production consumption.