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LED Spot Lights Liquidity Decisions
Oct 17, 2017

With the extensive use in high power LED lights in the lighting industry, manufacturing LED secondary optics has become a new industry, so that optical tooling has a great deal of development. LED scene light non-uniform wall thickness plus lots of optical free-form surface lens is the LED light spotlight product characteristics product appearance quality and size, its optical properties also have higher requirements, such as: efficiency of the field lens, lens and camera angle. The quality of these products, is becoming more and more strict with the mold, directly affect the productivity of dies, LED lighting product quality and cost. It is difficult to adjust the parameters of the injection molding process, our products are qualified, and optimizing die structure design.

Long runner mold has a lot of drawbacks, mainly reflected in the following two ways. 

(1)In cost control, control of raw material is a very big part of the cold runner mold, embodied in the gating system of raw materials the main waste material. Is a constant for that small end diameter and nozzle diameter, LED lights and tapers from the fluidity of the material. Diversion channels will also be affected by the diameter of the mainstream channels. So in the case of mass production, main channel length of material waste.

(2)Injection molding process parameters that affect large flow increased the difficulty of testing. Die forming three main parameters are time, temperature and pressure. Temperature including temperature and material temperature, mild mold temperature mainly from material viscosity and flow passage structure is relatively small.Forming time LED spotlights the injection time and cooling time, mainly due to size, thickness, temperature and number of products. Injection pressure flow to a great extent the length of the road. P indicates that the injection pressure, 7 "/presentation material constant (usually 0). 15-0. 36), formula (1) shows that the injection pressure and flow is proportional to the length and length increases, the corresponding growth in the injection pressure required. Injections are generally used for betting in LED lights, because of too high injection pressure is easy to overload the machine, will result in the injection molding machine to generate excessive energy consumption, increase the injection costs.

Mold pouring system design and injection molding machine has a great relationship, the mold of many parts size is determined by the size of the injection molding machine. LED Spot Lights The main path of the mould is 0 larger than the nozzle size of the injection moulding machine. 5~1 Mltl, the ball-head radius of the main sprue bushing is larger than the size of the ball head radius of the injection moulding nozzle 1tin2. The diameter of the locating ring should be less than equal to the aperture of the injection moulding machine, LED Spot Lights the height of which is volume 1TIITI on the surface of the die fixed mould base plate. In view of the 2 conditions that must be met, LED Spot Lights the locating ring and the main sprue bushing can be designed as a whole structure.