Injection molding machine is a special equipment which combines the hot working characteristics of plastics with the principle of melting die casting of metals. The original plunger injection molding machine was not developed until the late 1940s until the preplasticized screw injection molding machine. Since then, the focus of development is mainly around the pre-plasticized screw injection molding machine, has since appeared twin screw, exhaust and other advanced forms. In 1980, France produced the world’s largest screw injection molding machine, with an injection capacity of 170kg. From the 1980s to recent years, the development of injection molding machine is mainly concentrated in several aspects: namely, the application of precision automatic control system and various auxiliary equipment in automatic molding; Precision machinery and high performance hydraulic system; Various special
Read more →The injection molding machine is one of the most commonly used equipment in the plastic processing industry, and usually it needs to work for a long time without interruption. So, no matter for the injection molding machine manufacturer or user, how to ensure the stable and continuous production of the injection molding machine is a very worthwhile goal to achieve. From the user’s point of view, selecting the correct injection molding machine model and effectively implementing regular preventive maintenance is the easiest way to ensure that the injection molding machine can continue to work normally without interruption. The so-called preventive maintenance is a series of prevention and inspection, which can find out the potential danger of failure in advance and effectively prolong the working life of the parts.
Read more →As a plastic injection molding machine`s operator. We will see the Injection Molding Machine Error Codes more or less for long time operation. Below we have collected the most seen error codes and troubleshooting solutions for main injection molding machines controllers. We just hope the below information is helpful to improve your daily operations during plastic injection molding. Treatment of common faults of injection molding machine: 1. The oil pump motor and oil pump start, but no pressure. A). The proportional valve wiring on the oil pump is loose or the coil is burned out ——> Check whether the proportional pressure valve is energized. B). Impurities block the oil port of the proportional pressure valve on the oil pump ——> Remove the proportional pressure valve to remove the
Read more →The many styles of mobile phone cases seen on the market make many people love it. Not only can they protect their phones, but they can also make their phones look stylish and unique. Generally, mobile phone case manufacturers make mobile phones from raw materials to the end. The finished shell products need to go through the main steps of mold opening production, mold trial, sample confirmation, injection molding production, surface spraying treatment, and assembly. Generally, plastic mobile phone cases are produced by Phone Case Maker Machine – optimized injection molding machines. What about the turnkey solutions for making phone cases? Guanxin had launched 2 types of mobile cover making machine in the mobile back cover manufacturing industry. They are normal plastic mobile cover making machines and silicone
Read more →What is L/D Ratio L/D ratio is the ratio of the length of injection molding screw (L) to it`s outer diameter (D). Frankly speaking, L/D ratio is a very important parameter to a plastic injeciton molding machine. As it affect a lot on the injection machine`s melting performence and final plastic injection molding products quality. As an professional plastic molding machines manufacturer, we would like to explain it more to help our customers to under plastic injeciton molding machines screw better. What is L/D Ratio in Injection Moulding Machine Length-to-diameter ratio or L/D ratio in injection molding machine is the nominal length of the screw divided by the nominal diameter in consistent units. Or we can simply say the L/D ratio is the flighted length of the screw
Read more →The daylight in injection molding machine is space or distance between fixed platen and moving platen during open and close clamping on a injection molding machine. The minimum and maximum daylight in injection molding machine determines the sizes of the items it can make. The maximum daylight has to accommodate height of moving half of mould, height of moulded part, minimum and enough clearance for removal of moulded part and height of fixed half of mould. Formula to calculate the day light of the toggle injection molding machines: Maximum daylight = Maximum mould height + mould open stroke. Minimum daylight = Minimum mould height + mould open stroke. With Hydraulic clamp machine, Maximum daylight = Minimum mould height + mould open stroke. If shut mould height is more
Read more →Most people in plastic moulding industry may have the same question: how to calculate injection moulding machine tonnage or how to calculate clamping force in injection molding? This is a very common question if you are in the plastic inejection molding industry. So how do you calculate injection molding tonnage? Before answering the question about clamping force calculation, we should make it clear for some basic definition of the injection machine`s molding tonnage and how it comes from and what it supports during the injection molding process. What is tonnage in injection Moulding machine? The “tonnage” is the maximum of clamping force that a injection molding machine can offer to keep the the injection tool tightly closed during the injection process. This clamping force ensure the mold won`t
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