Hisson Plastic Machinery Co., Ltd. 

Sharing of injection molding machine screw cylinder fault elimination process

by:Hisson     2020-04-15
Because of the complexity of the injection molding machine processing, in the production process often encounter all kinds of small problems, although the problem is not big, but always to the plant production efficiency, influence the economic benefit, therefore, as the screw up the summary of the problem and the conventional method of problem solving, the following table: symptoms screw feed tube part solution not bottom feeder screw fracture in new screw hopper 'bridge' to 'bridge' collapsing feed tube feeding period of high temperature reset ensure smooth shipment hydrosphere feed zone temperature crushing material volume general raw material broken again, change the design of the feed tube inlet ( Inside groove, do eccentric milling slope) , plus deep screw screw groove depth product yellow with black spots in screw feed tube wear abrasion situation based on the corresponding screw or feed tube screw component has a blind Angle to replace the corresponding special screw or three small screw is raw material using carbide anticorrosion material better screw nozzle hole a teenager nozzle holes to drill the screw compression ratio is too large for the corresponding compression screw screw temperature package material screw core cooling deep hole plasticizing bad product raw material in the screw is not fully melted raise the temperature of feed tube, using separation type screw products uneven color mixture screw mixing effect is not good by shooting high mixing screw glue end instability lead aprons around activity clearance is too large to replace the small gap after apron aprons, and bad cooperation meson in outer diameter and end verticality good lap and meson aprons and tube clearance is too large to replace the corresponding wearing parts material easy leaking pipe and flange contact rubber tube and flange face no tiejin overhaul two workpiece length of the seam allowance inside and outside of the flange of end face and outside check mouth not vertical overhaul two workpiece inside and outside the seam allowance and end verticality screws or feed tube tensile strength is not enough with 12. 9 screw, mingled with a qualitative material tube, pipe diameter screw back difficult feeder period of temperature on the high side; Broken material is too large; Mr Pressure setting is too large; Cylinder feed zone set unreasonable; Screw cylinder clearance is too small to set reasonable parameters; Broken again less raw material; Clearance is too large to replace a new screw cylinder; Reasonable design of inlet products have bubble back pressure is too low; Compression ratio is too small. Due to high shot speed too slow, mould; Set the reasonable process parameters, select a larger compression ratio of the screw screw haven't assembly in place a sound feed tube; Fodder barrel mouth file size is too small; Screw shank diameter is too small; Screw the straightness is not good; Screw discharge design is not smooth; Sundry off feed tube check each file size; Reinstall the; Remove the foreign body; Illiquid raw material to produce in three small smooth discharge structure
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