Three Functions in One System
A complete quick-change mould system integrates three functions that are traditionally separate and sequential: locating (positioning the mold on the platen), clamping (securing it), and ejector coupling (connecting the ejector system). Combining these into a single standardized system is what enables sub-10-minute changeovers.
System Architecture
| Function | Traditional Method | Quick-Change System | Time Saved |
|---|---|---|---|
| Locating | Eye alignment + test shots | Precision locating ring (±0.02 mm) | 15-20 min |
| Clamping | 8-12 bolts, manual tightening | 4 toggle clamps, simultaneous lock | 20-30 min |
| Ejector Coupling | Manual rod connection + alignment | Integrated auto-coupling (K3/K4) | 15-20 min |
| Total | 60-90 min | 5-10 min | 50-80 min |
Precision Locating
The locating function uses a standardized centering ring that mates with a machined pocket on the machine platen. This provides:
- Repeatability: ±0.02 mm positional accuracy every changeover — no test shots needed to verify alignment
- Self-centering: Tapered surfaces guide the mold into position during crane lowering
- Standard interface: The centering ring dimensions are standardized, ensuring any compliant mold fits any compliant machine
Toggle Clamping
Toggle clamps replace individual bolts with a mechanical linkage that locks at over-center:
- Simultaneous operation: All 4 clamp points lock in a single pneumatic stroke (<5 seconds)
- Self-locking: The toggle mechanism holds clamping force mechanically — no continuous pneumatic pressure required
- Consistent force: Every clamping cycle applies identical force, preventing the mold plate warping caused by uneven manual bolt tightening
Integrated Ejector Coupling (K3/K4 Only)
The K3 and K4 systems include an automatic ejector coupling that connects during mold insertion and disconnects during removal — no manual intervention required.
- K3 (compact format): Fixed 156×196 mm footprint for small to medium molds
- K4 (variable format): Adjustable dimensions for large or non-standard molds
- Time savings: Eliminates the 15-20 minutes typically spent on manual ejector rod connection and alignment
System Selection Guide
- K1 (compact, no ejector): Small-medium molds, ≤3 changeovers/shift. Standardized footprint.
- K2 (variable, no ejector): Large/non-standard molds, ≤3 changeovers/shift.
- K3 (compact + ejector): Small-medium molds, >3 changeovers/shift. Maximum time savings.
- K4 (variable + ejector): Large molds, >3 changeovers/shift. Full system changeover.
- K5 (standard insert): Budget option for low-frequency changeovers. Basic quick-change capability.