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Color mode of forming principle

Double injection mold is a product, there are two different materials or two or with materials of different colors into the material injection, usually divided into two categories, one is mixing color injection mold, ie injection molding machine nozzle alternately two different colors The material injected into the same mold cavity to form no clear boundary color products, and the other is a double-double injection mold, namely two kinds of two nozzle exit two materials constituting the articles have a clear boundary of color products, After a first nozzle chamber molding material injected into a small, but not after the top of the mold, the mold is rotated 180 degrees mold, after the second nozzle to another material has been injected into the first material large cavity, so the two materials stick together after a second open top of the mold, injection molding a complete color products, but this mold cavity size are divided up so precisely produce molds or every once a complete product ejection . Two die in such materials generally have a material portion of the assembly has an important relationship between the size of demanding, while other material assembled relationship is not very important, the general decoration or just to meet the requirements of a buffer or feel, so in general this layer the material is placed in the second injection, this type of mold there is a lot of use of apology before mold, which means two sets of molds, hit a material, then put him in another set of injection mold another material.

Double color mold injection molding machines are rotary injection molding machine, mold is mounted on a rotating disk, each playing a material movable mold is rotated 180 degrees, the injection molding machine with a horizontal arrangement of two nozzle also has arranged up and down and the maximum amount of injection nozzle of a two large and one small, must be aware of this design, or if the quantity big mistake with the arrangement of a cavity in the results of the exit mouth small amount of injection may cause radio insufficient glue amount, so the mold may be waste, the process involved in such a mold should always pay attention to his rotates 180 degrees to successfully mold clamping.

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