Collapsible Core Design & Assembly Guide - DME

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36 CC 402 P.C. Core Dimensions .725 MIN Ø3.13 Ø2.38 3° R.012 MIN (NOTE 1) .030 FLAT .090 COLLAPSE MIN AT FACE 5° MIN DRAFT PER SIDE .030 FLAT MIN (NOTE 7) 60 ° C’SINK BOTH ENDS FOR GRINDING DME Collapsible Core .030 MIN .075 MAX Ø2.182 ±.005 MIN STK Ø1.388 CENTER SCREWS ON MIDDLE OF LARGE SEGMENT CENTER COLLAPSIBLE 1.535 1.700 .16 MIN 1.535 .31 NOM R.03 1.88 MAX (CIRCULAR STEP DETAIL) .200 MIN\ .250 MAX SHUT-OFF HEIGHT DO NOT USE TAPERED SHUT-OFF www.dme.net .030 MIN. CLEARANCE REF .030 CLEARANCE MIN 7.815 4.790 NOM Ø3.250 NOM ±.003 P.C. SLEEVE PARTIAL MOLD ASSEMBLY DETAIL Ø3.427 NOM .188 NOM 15° .010 P.C. SLEEVE COLLAPSIBLE CORE CENTER PIN ±.005 1.812 (NOTE 4) ±.001 .374 ±.001 Ø2.249 ±.001 Ø1.499 Ø2.500 +.000 -.010 SET-UP FOR GRINDING REFER TO GRINDING INFORMATION USE SCREWS TO ALIGN CORE ON PIN STRIPPER INSERT .010 .88 MIN ±.005 1.812 (NOTE 4) Ø1.875 +.000 -.010 .75 DIA COOLING HOLE INDICATE HERE FOR GRINDING .003 MAX T.I.R. NOTES: 1. Center pin to project ..030 minimum/.075 maximum above front face of Collapsible Core with .012 R minimum at corners. See suggested partial mold assembly view. 2. Both ends of center pin to be cut off after grinding contour on Collapsible Core before assembly in mold. 3. Minimum suggested I.D. of thread or undercut is 1.593-S to give minimum steel support between depth of undercut and center pin. 4. The 1.812 ±.005 dimension must be held in mold assembly and core grinding. 5. Consult Grinding Instructions. 6. A 1 ⁄32 radius is essential on the inside corners of the stripper insert, especially where shut-off contacts Collapsible Core. 7. Thread must never be run out of face of core, leaving a knife-edge of material. For complete instructions, refer to Design Procedures. 8. Do not use center pin as a pilot into “A” half of mold.
DME Collapsible Core CC 402 P.C. Mold Base Machining Dimensions CAVITY PLATE SUBTRACT INTERNAL DEPTH OF PART PLUS MATERIAL SHRINK FROM THIS DIMENSION TO DETERMINE ACTUAL STRIPPER PLATE THICKNESS SHUT-OFF DIMENSION AS NEEDED (CHECK LIST 7 & 13) STRIPPER INSERT MUST BE RETAINED STRIPPER PLATE .740 MIN. 2.253 .44 ±.007 Ø2.274 Ø3.28 MOLDED PART .875 1.375 +.003 -.000 Ø3.254 Ø3.28 +.003 -.000 Ø3.254 ±.003 .50 7.815 CORE O.A.L. (CHECK LIST 11) Ø3.50 .207 +.003 -.002 +.005 -.000 Ø2.505 .375 +.001 -.000 +.001 -.000 C-4.500 RELIEF FOR GREASE ±.005 2.687 EJECTOR STROKE (CHECK LIST 2) CYLINDERS RECOMMENDED FOR AUTOMATIC MOLD OPERATION (CHECK LIST 5) PARTING LINE ±.003 .625 Ø2.251 www.dme.net 1.000 Ø1.56 “O” RING GROOVE +.001 -.000 Ø1.501 1.812 ±.005 .875 1.375 .187 Ø1.880 +.005 -.000 1.187 ±.001 SECTION A-A GUIDED EJECTION A THIS PLATE THICKNESS MAY BE VARIED AS DESIRED SUPPORT RING .250 NOM 3/4 N.P.T. TAP C'BORE AS NEEDED ±.005 TO HOLD 1.812 GRIND EJECTOR PLATE, SUPPORT RING, & REST BUTTONS TO THIS ±.001 DIMENSION 1.187 (CHECK LIST 1) PIN COOLING DETAIL BRASS WATERLINE BAFFLE 37
Page 1 and 2: DESIGN & ASSEMBLY GUIDE U.S. 800-62
Page 3 and 4: Table of conTenTs DME DESIGN & ASSE
Page 5 and 6: DME Collapsible Core Collapsible Co
Page 7 and 8: DME Collapsible Core Design Procedu
Page 9 and 10: Table of Dimensions Table 1-1 DME C
Page 11 and 12: DME Collapsible Core Design Check L
Page 13 and 14: DME Collapsible Core Grinding Instr
Page 15 and 16: Ø2.63 Ø1.88 CENTER SCREWS ON MIDD
Page 17 and 18: CC 150 P.C. Core Dimensions .037 MI
Page 19 and 20: Mold desiGn check lisT DME Collapsi
Page 21 and 22: MOLDED PART DME Collapsible Core (C
Page 23 and 24: DME Collapsible Core CC 200 P.C. Mo
Page 25 and 26: CC 250 P.C. Core Dimensions Ø.470
Page 31 and 32: CC 252 P.C. Core Dimensions 3 ° Ø
Page 39: Mold desiGn check lisT S MOLDED PAR
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Page 57 and 58: DME Collapsible Minicore cenTer pin
Page 59 and 60: Total Collapse DME Collapsible Mini
Page 61 and 62: DME Collapsible Minicore 11. Import
Page 63 and 64: DME Collapsible Minicore Center Pin
Page 65 and 66: Minicore Grinding Set-Up Informatio
Page 67 and 68: DME Collapsible Minicore CCM-0001 M
Page 69 and 70: CCM-0002 Minicore Dimensions DME Co
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Page 73 and 74: DME Collapsible Minicore CCM-0003 M
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Collapsible Core Design & Assembly Guide - DME

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