Molding Parameter Setting Up Instruction 2-1 l Fox Mold
1. The parameters of the mold action should be set according to the mold structure, product size, movement of the knockout machine and other factors.
First, manually open and close the mold and eject slowly, confirm the mold opening position, mold closing speed change position, mold protection start position, ejection position, ejection times, and then set the speed of the corresponding position. The setting of these parameters should enable the mold to be produced safely and efficiently.
For three-plate molds, use the mold opening stage 1 and mold opening stage 2 ingeniously to minimize the sound of the middle mold detaching. In order to protect the mold, install an ejection stroke return confirmation switch or a forming monitor when necessary.
2. The setting of mold temperature and barrel temperature can refer to the material property table and can be adjusted accordingly according to the quality requirements of the parts.
3. The setting of back pressure and rotation speed can refer to the material property table and can be adjusted accordingly according to the appearance of the parts.
Note: When setting the rotation speed, consider that the metering time is 2 to 3 seconds shorter than the cooling time.
4. The metering position is set according to the size of the part. When the weight of the molded product is known, the metering position can be calculated according to the following formula: S (metering position mm ) = W ( 1 SHOT weight g ) ÷ [ρ (specific gravity) × π r2 ( screw radius mm ) ]
( 1. The weight of molded products can be estimated based on material density and component volume).
5. The setting of decompression distance and decompression position should follow the following principles: speed and distance that do not draw air in.
Generally, the decompression distance is set to about 2 to 3 mm , and the decompression speed is set to about 10 mm / s .
