Coreshooter "B40 GSI"

AUTOMATIC SAND-CORE MACHINE "B 40 GSI"

This machine is equipped with intelligent hydraulic clamping units with grooved plates for closing vertically divided sand core boxes. These clamping units are moved by oleodynamic cylinders equipped with an automatic position recognition system. The hydraulically controlled sliding unit allows the clamping unit, with the installed sand core box, to be moved out of the shooting and gasification position, enabling the operator to access the top of the sand core box, facilitating the removal of hardened cores from the shooting area.

This sand-core machine is designed for the production of sand cores using gasification processes for hardening, and it features the following characteristics:

• Clamping units on both the right and left sides with mechanical fastening system for the sand core boxes, independent intelligent hydraulic movements on both sides with position recognition, controlled by hydraulic valves equipped with fast/slow modes and dedicated software.

• Hydraulically controlled sliding unit with a 600 mm stroke, realized through an oleodynamic cylinder, and equipped with proximity limit switches.

• Hydraulic table lift/lower unit with a 300 mm stroke, realized using an intelligent cylinder with position recognition, controlled by hydraulic valves with fast/slow modes and dedicated software.

• Complete perimeter enclosure large enough to allow the sliding unit to move the entire clamping unit out of the shooting head while remaining within the enclosure. It is equipped with full-height, automatically operated doors on the operator's side. For maintenance, the perimeter enclosure includes sliding side doors controlled by safety limit switches.

• Mechanical supports for the upper half of the sand core when using horizontally divided sand core boxes.

• Integrated gasifier (optional) within the perimeter enclosure.

• Integrated electrical panel, with the operator control panel mounted on a cantilevered articulated arm. It includes a Siemens S7 PLC and OP77 display with multilingual operational software that allows for storing recipes with the following configurable options:

  1. Indication of the type of shooting head to use (slot, central hole, cross, or inserts).
  2. Indication of the type of insert to use (e.g., insert 11, etc.).
  3. Single, double, or triple shooting, each with its own charge time.
  4. Loading frequency.
  5. Indication of the shooting pressure to use (manual adjustment).
  6. Position of the right sand core half.
  7. Position of the left sand core half.
  8. Position of the sand core during ascent (against the shooting head). Once this value is set, the machine automatically positions itself for the gasification plate's entry after shooting.
  9. Gasification time.
  10. Washing time.
  11. Indication of the gasification pressure to use (manual adjustment).
  12. Indication of the washing pressure to use (manual adjustment).
  13. Sliding unit enabled or disabled.
  14. Clamping units enabled or disabled.
  15. Ability to insert an intermediate stop in the cycle for the introduction of reinforcement or hooks before the shooting cycle.
  16. Ability to insert an intermediate stop in the cycle for the introduction of reinforcement or hooks after the shooting cycle.
  17. The option to adopt the "extra-long core box" cycle, which allows the sliding unit (and thus the sand core box) to move only when the doors are open.

The filterless shooting system used in this machine allows it to operate at reduced shooting pressures. The machine is built in compliance with European safety standards, marked with CE certification, and comes with a relevant declaration of conformity.

TECHNICAL SPECIFICATIONS:

• Max shooting capacity (single shot): 60 kg (*)
• Max shooting capacity (double shot): 110 kg (*)
• Max shooting capacity (triple shot): 160 kg (*)
• Vibrating hopper loading capacity: 120 kg
• Empty cycle time (simple cycle): 35 seconds
• Minimum compressed air pressure: 6 bar
• Minimum extraction flow rate (suction): 2500 Nmc/h

Hydraulic Clamping Unit:

• Clamping plate dimensions: Length: 700 mm, Height: 502 mm
• Max distance between plates: 800 mm
• Stroke of each clamping cylinder: 300 mm
• Hydraulic clamping force: 3000 kg
• Guide pins per side: 3
• Guide pin diameter: 40 mm