EXTERNAL LATCH LOCK
EXTERNAL LATCH LOCK
DME External Latch Lock Allows Precision Control of Mold Plate Latching Operation
• Simple design reduces machining time & labor costs • Standardized components simplify mold maintenance • Eliminates springs & associated play in plates, and reduces mold maintenance • Standard sizes accommodate most mold base sizes and stroke lengths • (4) sizes of housings with (2) housing lengths each; (3) puller bar lengths • Puller bars & housing may be shortened as desired • Stroke may be with or without delay
• Ideal for molds with floating plates, including stripper plates & 3-plate molds • Floating plates are positively locked in place during mold opening and closing, preventing potential mold damage • Ensures floating plates will be where they should be throughout the life of the mold • Positively and precisely positions plates every time the mold opens and closes, allowing molds to run faster • Simplifies mold design while improving design flexibility • Designed and engineered to hold large loads while saving space inside the mold
Example with delayed stroke sequence
Example without delayed stroke sequence
INTENDED MOLD SIZE
TR MAX. (TRACTION FORCE)
LF MAX.(LOCKING FORCE)
Sz
BACKLASH
w1 (2PCS)
246 x 246
20kN
1.5kN
2.0
0.25
55
396 x 396
35kN
2.0kN
2.3
0.25
65
646 x 646
50kN
3.0kN
2.7
0.30
80
796 x 796
80kN
4.0kN
3.2
0.35
95
SA..PU - shock absorber, buffer damper DI - maximum delayed stroke Sz - switching zone, stroke 2 begins slightly before the end of stroke 1
Backlash - Segments need clearance/play to allow the locking/unlocking sequence (built into the product) TF - traction force (always retain the lowest) LF - locking force (maximum holding force after stroke 1)
152
U.S. 800-626-6653 ■ Canada 800-387-6600 ■ Mexico 52-442-713-5666 ■ dme.net ■ store.dme.net.
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