Automatic Coresetters

Automatic Coresetters

Automatic coresetter advantages:

  • Fast cycle rates increase production dramatically.
  • Multiple, complex, or heavy cores can be set accurately.
  • Can be purchased with machine or added at a later date when production warrants.
  • Core mask made from castable plastic from the cope side of the matchplate.
  • Vacuum is used to hold cores produced by compressed air.
 
THE MASK
A core mask is a plastic fixture into which the operator sets cores. The cores are held in position by vacuum until the coresetter places them in the mold. Core masks are made from an inexpensive self-setting plastic. The material is poured into a pouring frame that has been placed on the cope side of an existing pattern. After curing, the mask is de-molded or removed from the pattern and pouring frame. Small holes are drilled through the mask, where special vacuum cups are installed that will hold the cores securely in the print areas. The mask is now ready for mounting on the coresetter vacuum plenum. The quick-change mounting system requires only four bolts, which means a mask can easily be changed and aligned in less than five minutes.
 
 
OPERATING MODES
Setting Cores:
  • The core mask is presented to the operator at a convenient angle and elevation to receive cores. This facilitates operator efficiency with minimum fatigue.
  • The operator places cores in the mask and pushes the Cores Ready button.
  • Cores are held in the mask by vacuum as the mask inverts, and moves into position above the drag mold. The motion is smooth, and controlled, as the cores are set and the vacuum is released.
  • Delicate cores can be gently released or heavier cores can be pressed firmly into core prints, as required.
  • The core mask and vacuum plenum then quickly return to their original position, ready to accept cores for the next mold.
  • The drag mold is automatically blown off during the core set cycle.
 
 
 
Without Cores:
  • The operator selects blow-off only for non-cored work.
  • The unit then functions as a high-speed blow-off, moving rapidly in and out across the face of the mold.
  • The operator can elect to blow off during in-only or during both and out motions.
 
 
Other Features And Benefits:
  • Fast cycle rates will increase production dramatically.
  • The production rate for cored jobs should now be nearly as fast as for non-cored work.
  • Accurate coresetting eliminates shaving of the core prints, resulting in a drastic reduction in scrap dirt.
  • All controls are integrated so that the molding machine and Coresetter function as a single unit.
 
The Automatic Coresetter is installed at no charge, when ordered as an option on a new Hunter molding machine.
  • Reduced skill levels required, for the operator, with improved working conditions.
  • Extremely low tooling costs make it practical to pour core masks, even for short-run jobs.
  • Vacuum generator has no moving parts, and the Venturi principle is used to produce vacuum from compressed air, so the machine may run unattended, for non-cored work using the blow-off feature.
  • Blow-off may be customized, for optimum efficiency, on special or difficult patterns. (A standard curtain of air works well on most jobs.)
  • Blow-off air pressure is adjustable, to provide a range of velocities from Gentle to Very Brisk.
  • All motions are powered by separate hydraulic cylinders. This produces fast-but-very-smooth motions.
  • No interference with light guard operation or other protective devices.

 

 

 

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