Plastic Molders
Plastic molders are tool and dye machines used by plastic
manufacturers in the injection molding process. These machines are used for mass producing plastic parts, products and
materials because of their efficiency and high rate of production. They are used in a wide variety of
industries, including automotive, electrical, health care, construction, packaging
and consumer goods and are used to make many different products, from computer
casings to toothbrushes and patio furniture. There is little waste produced by plastic molders, and it can be
recycled easily.
Thermoplastic injection molding machines produce plastics by
a quick and simple process. First, 2 halves of the injection mold are clamped
hard under pressure. One is connected to
a movable calender while the other is connected to a stationary calender. The calenders then close and press the two
halves of the mold together. The
plastic, usually in pellet form, is then loaded through a hopper, heated to
molten form and injected into the mold, which is an inverse of the desired
shape of the part being made. The
plastic is left for a short time to cool, then ejected out of the machine with
force, as the plastic tends to shrink and stick to the mold.
Plastic molders require minimal amounts of manual labor,
keeping costs low. However, a
maintenance operator may need to manually feed the plastic materials into the
mold or remove the plastic part from the mold after it has cooled. Regular service maintenance is also
required.