FAQs

PBM Blow Moulding Machine

  1. Mould Does not close ?
  2. In All Operation

    • Low pneumatic pressure
    • Blow pin is 'IN' position
    • Poor connection or disconnected solenoid valves PY17.
    • Defective solenoid valve
    • Disconnected circuit

    In Hand Operation

    • Loose or disconnected mold close out put

    In Fully Automatic Operations

    • Loose or disconnected circuit
  3. Mould Does not open ?
  4. In All Operation

    • Low pneumatic pressure
    • Poor connection or disconnected solenoid valve PY26.
    • Defective solenoid vale or coil.
    • Disconnected circuit

    In Hand Operation

    • Loose or disconnected circuit

    In Fully Automatic Operations

    • Loose or disconnected circuit
  5. Shooting 'IN' not effected ?
  6. In All Operation

    • Low air pressure
    • Defective solenoid valve PY25

    In Hand Operation

    • Loose connection or disconnected out put

    In Sami or Fully Automatic Operations

    • Loose or disconnected circuit
  7. Blowing not effected ?
  8. In All Operation

    • Low air pressure
    • Defective solenoid valve PY1
    • Defective solenoid valve coil
    • Loose connection or disconnected
    • Defective quick exhaust valve

    In Hand Operation

    • Loose connection or disconnected circuit

    In Sami or Fully Automatic Operations

    • Loose or disconnected circuit
  9. Shooting out not effected ?
  10. In All Operation

    • Low air pressure
    • Solenoid valve defective PY4

    In Fully Automatic Operation

    • Loose or disconnected circuit
  11. Overcoming operation hindrances ?
  12. Dull Internal Surface

    • Increase processing temperature
    • Increase screw speed
    • Polish the core
    • Check the function of heating system

    Dull External Surface

    • Increase processing temperature
    • Increase die temperature
    • Polish the mouth piece or die
    • Increase blowing air pressure
    • Check the function of heating system

    Melt Fraction

    • Increase processing temperature
    • Increase die temperature
    • Check the function of heating system
    • Decrease screw speed
    • Increase die gap
    • Improve material flow in the cross head

    Longitudinal Flow Mark

    • Clean and polish Die head
    • Polish the die and mouth piece
    • Improve material flow in the cross head and die head
    • Increase processing temperature
    • Increase cross head temperature
    • Decrease die head temperature
    • Check the function of heating system

    Air Bubbles

    • Decrease the processing temperature
    • Pre-dry the raw material
    • Increase feed zone temperature
    • Decrease cross head temperature
    • Decrease feed zone water cooling
    • Increase screw cooling air flow

    Dust Particles

    • Clean the cross head and die head
    • Clean the polish the die head
    • Clean screw and barrel

    Check The Function of Heating System

    • Increase processing temperature
    • Increase cross head temperature
    • Increase or decrease die temperature
    • Decrease free zone temperature
    • Increase free zone water cooling flow
    • Decrease screw cooling air flow
    • Decrease screw speed

    Dark Discoloration

    • Decrease processing temperature
    • Decrease cross head and die head temperature
    • Increase or decrease screw cooling air flow
    • Check the function of heating system
    • Check the thermocouple
    • Increase or decrease screw speed
    • Clean and polish the head, cross head, die head and die

    Burnt Particles

    • Decrease processing temperature
    • Decrease die and head temperature
    • Increase screw cooling air flow
    • Increase feed zone cooling water flow
    • Check function of heating system
    • Check function of barrel cooling blower
    • Clean and polish cross head, die head, barrel, die and mouth piece.