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As is well known, the application of injection molded products is becoming increasingly common, covering all aspects of people's lives. At the same time, the upgrading and replacement of injection molded products are also accelerating, and there are more and more types of products coexisting. It is not uncommon for plastic machines to produce multiple varieties and batches. As far as the automotive industry is concerned, multiple car series lead to a wide variety of interior and exterior parts, and traditional mold changing methods usually require a lot of time and cause great cost consumption. To solve these problems, many injection molding machine quick mold changing manufacturers choose the quick mold changing system. However, how should new companies choose the quick mold changing system for plastic molds?
When selecting a plastic mold quick change system, we should have a basic understanding of the quick change system. The rapid mold changing systems on the market are mainly divided into pin mold changing systems, hydraulic mold changing systems, and magnetic mold locking systems.
The pin mold replacement system is a relatively early mold replacement system, characterized by the use of a limited number of pressure points, and the clamping pressure acts on the clamping points around the mold side plate. This method of mold replacement takes a long time and requires high labor intensity. Moreover, due to the deformation of the clamping force and the lack of clamping force at the center position of the mold side plate that requires clamping force, the mold is prone to deformation during work, and the pins and bolts often need to be replaced, resulting in high labor costs for mold replacement, Not suitable for current industrial equipment installation.
The hydraulic mold changing system usually only clamps four points, which has the same problem as the locking pin mold, making it easy for the mold to deform. Moreover, since the clamping points are fixed, the mold side plates must be made of the same model, which leads to consumption and poor adaptability. There are limitations on the thickness of the base plate, which reduces the efficiency of comprehensive application. Hydraulic pumps require long-term operation, high energy consumption, frequent oil leakage, manual cleaning, and high maintenance costs.
However, magnetic mold changing is different. The magnetic mold changing system is a rapid development in recent years, widely accepted and adopted by industrialized countries in Europe and America. Its mold changing time can be reduced to a few minutes, and the labor intensity is small, requiring only one person to operate. Due to the uniform clamping force of the magnetic template on the full contact surface, the large punch press can quickly change the mold. The mold can basically avoid deformation during operation, and the accuracy and consistency of the injection molded parts are good, making it suitable for various forms and models of plastic machines. In addition, the system has no mechanical action and only uses electricity instantly when charging or demagnetizing. It does not consume electrical energy during operation, so there is no need for dedicated personnel to maintain it during use, and the service life is very long.