5 questions we need to know before vertical rubber injection molding machine
The vertical rubber injection molding machine needs to be used in two shifts, and it is continuously working for 24 hours. Therefore, before overhaul, we emphasize again that the disassembly and assembly equipment must be performed by professional maintenance personnel, which is aimed at different vertical rubber injection. The corresponding model of the molding machine should also be different.
The structure of the equipment generally changes with different models, so professional maintenance personnel must refer to the same type of equipment maintenance personnel to disassemble and install the equipment, so before disassembling and disassembling the machine, you must To understand the basic structure of the equipment, customize a reasonable plan first, and then disassemble and install.
1. If the mold cavity of the vertical rubber injection molding machine is poorly processed, for example, there are defects such as scars, micropores, wear and roughness, it will inevitably be reflected on the plastic parts, which will make the plastic parts have poor gloss. The mold is carefully processed to make the surface of the cavity have a small roughness, and can be polished and chromed if necessary.
2. If the surface of the vertical rubber injection molding machine has oil stains, water stains, or too much release agent, this will make the surface of the plastic parts dark and dull. Remove oil stains and water stains in time, and use a limited amount of Mold agent.
3. If the mold release slope of the plastic part is too small, the mold release is difficult, or the force is too large during demolding, which makes the surface of the plastic part not good. For this, the vertical rubber injection molding machine should be increased.
4. If the exhaust of the mold of the machine is poor, and too much gas stays in the model, it will also easily lead to poor gloss of the product. For this, the mold exhaust system should be checked and corrected.
5. If the cross-sectional area of the gate or runner is too small or changes suddenly, the shear force acts too much when the melt flows in it, and the turbulent dynamic flow results, resulting in poor gloss of the product. For this reason, the gate and flow should be appropriately increased. Road cross-sectional area.
The structure of the equipment generally changes with different models, so professional maintenance personnel must refer to the same type of equipment maintenance personnel to disassemble and install the equipment, so before disassembling and disassembling the machine, you must To understand the basic structure of the equipment, customize a reasonable plan first, and then disassemble and install.
2. If the surface of the vertical rubber injection molding machine has oil stains, water stains, or too much release agent, this will make the surface of the plastic parts dark and dull. Remove oil stains and water stains in time, and use a limited amount of Mold agent.
3. If the mold release slope of the plastic part is too small, the mold release is difficult, or the force is too large during demolding, which makes the surface of the plastic part not good. For this, the vertical rubber injection molding machine should be increased.
4. If the exhaust of the mold of the machine is poor, and too much gas stays in the model, it will also easily lead to poor gloss of the product. For this, the mold exhaust system should be checked and corrected.
5. If the cross-sectional area of the gate or runner is too small or changes suddenly, the shear force acts too much when the melt flows in it, and the turbulent dynamic flow results, resulting in poor gloss of the product. For this reason, the gate and flow should be appropriately increased. Road cross-sectional area.
