Molding Machinery— How a Plastic Injection Molding Machinery Works
Plastic Injection Molding— Learn how plastic injection molding machinery works from resin being fed into the injection barrel, to where the heat that melts the material originates.
Society of Manufacturing Engineers
Plastic Injection Mold Design— Designer John Kreutzberger uses the SolidWorks program, a 3D CAD mechanical design program, to design plastic injection mold, and aluminum and zinc die casts.
Kreutzberger discusses the adjustments and revision processes that can easily be made when using SolidWorks by updating references and mold inserts, update 3D data that is used to machine the mold or die. The drawing files are conveniently linked directly to the part models making it easy to revise and resend any drawings out on the floor. SolidWorks is used primarily to quickly market the molds.
Injection molds are used to create an array of plastics instruments such as surgical tools, hearing aids, orthodontics, corrective eye surgery, and high-end electrical devices.
TIP-L Vertical Injection Molding Machine
An example of a vertical injection-molding machine in use.
Double vertical injection molding machine K40-40
Shows time saved for labor, production, and machine energy.
Injection Molding Basics
Manual, semi-automatic and automatic machine settings and when to use each.
3 Methods of Operation an Injection Molding Machinery Utilizes
The Basics of Blow Molding Machinery and How it Works
How Plastic Bottles are Made
Reprocessed plastic, polyethylene, is melted and injected into a mold. This creates a pre-form. As it hardens, air is blown into the pre-form and then further molded in plastic process machinery creating bottles.
Blow Molding, Plastic Injection Molding Machinery
Pioneers of some of the first plastic molding machines used to make plastic pallets, bottles, containers and other parts.
Blow Molding Machinery FMA-4T-BL5L
All electric driven blow molding machine.
Blow Molding—How a blow molding machinery works.
Extrusion Blow Molding Machinery
Controlled by proportional hydraulics, this machine is used to make bottles, tubs, and motor oil containers to name a few examples.
Blow Molding Machinery
Used to produce a variety of bottles. This plastic auxiliary equipment can feature single or double workstations and can be equipped with up to a sextuple mold head and liquid level marks. Blow Molding Machinery uses a technique in which a method of fabrication produces a heated hollow tube of plastic.
3 Main Types of Blow Molding Machinery
Expert mold designers create plans for precision extrusion machinery. Plastic components are created using thermoplastic and thermosetting plastic resins that are injected into molds. The designer crafts the mold shape that resin is injected into. From hearing aids and surgical tools to car parts to children’s toys, Extrusion machinery’s plastic injection molding is everywhere.
Extrusion machinery is also used for making links of plastic sections like profiles, rods, tubes, and sheets. There are 5 essential elements of extruder machines.
The extruder machine pulls raw material, like plastics or resin into configuration guides that create stock components. A hopper is at one end of the molding machinery where the resin is fed to the screw, ram or plunge. The opposite end where the resin is pushed holds the die that will shape the resin. There are 3 types of extruders.
Extrusion Machinery—3 types of Extruders
Injection molding machinery is used to create plastic components. These plastic components start out as resin flakes, shavings or pellets, are melted and injected into a mold, cooled, and then removed from the mold by an operator. The operator may also need to open the operator’s gate to remove the plastic components after they have cooled and operate the control panel.
Horizontal Injection Molding—Injection Molding Operator Tasks
An example of a plastic injection machine with low safety regulations in use as well as no visible use of safety switches.
Hot Runner Controllers— Injection molding machine for Heel
Uses hydraulic horizontal closing, injection feeding system, and proportionally controlled pressure.
Plastics Machinery—Horizontal Injection Molding Machinery
Advantages to Vertical Injection Molding Machinery
Plastic Auxiliary Equipment—Hot Oil Units
Hot oil units, or portable hot oil units, are engineered to perform at high operating temperatures. Plastic auxiliary equipment—hot oil units, depending on the make and model, heat to temperatures running between 450° and 650° F.
Plastic Auxiliary Equipment—Low-watt Density Heaters
Hot oil units are equipped with low-watt density heaters to eliminate risk of charring oil. Low-watt density heaters are used to maintain and extend the life of oil used in plastic auxiliary equipment and to prevent the oil from “coking” or “charring.” Coking adversely affects the processing equipment and breaks down the oil compounds rendering it useless.
Precautions taken by the use of low-watt density heaters resolve coking and charring issues. A vacuum pump, or positive displacement gear pump, is used to provide the correct flow over the heaters needed even during the cold start-up process.
Unlike conventional temperature control units that use a pressure process, the hot oil unit employs a vacuum pump. The vacuum pump pulls heated materials through the mold rather than forcing it through with pressure.
Plastic Auxiliary Equipment—3 Factors for a Successful Vacuum Pump
Negative Pressure Temperature Control System
Plastic Auxiliary Equipment—Hot Oil Unit Features