B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/10 (2006.01) B29C 45/04 (2006.01)
Patent
CA 2718019
A process for changing mold blocks in injection molding apparatus, comprises the steps of affixing at least one core block of a mold to a respective cavity block of the mold across a part line between the core and cavity blocks, releasing a rear face of the at least one core block from a front face of a hot runner assembly by means of remotely actuating face clamps formed in the rear face of the core block and the front face of the hot runner assembly, releasing a rear face of a carrier plate from a U-frame partially enclosing the carrier plate by remotely actuating U-frame clamps at least partially located in the U-frame, removing from a press a subassembly comprising the carrier plate, the at least one cavity block, and the at least one core block, while leaving the U-frame and the hot runner assembly affixed to the press, releasing the at least one core block and the at least one cavity block from the carrier plate by remotely actuating face clamps formed in a front face of the carrier plate and in a rear face of the at least one cavity block, selecting at least one new pair of core and cavity blocks for further use in the molding system, affixing together the at least one new pair of core and cavity blocks, affixing a rear face of the cavity block of the at least one new pair of blocks to the front face of the carrier plate by remotely actuating face clamps formed in the front face of the carrier plate and in the rear face of the at least one cavity block, the last step of affixing creating a second subassembly, closing opposed platens of the press such that a rear face of a core block of the at least one new pair of core and cavity blocks is brought into proximity with the front face of the hot runner assembly, affixing the rear face of the core block of the at least one new pair of core and cavity blocks to the front face of the hot runner assembly by actuating face clamps in the hot runner assembly and the last core block, affixing the second subassembly to the U-frame by remotely actuating the U-frame clamps, and releasing the core block from the cavity block both of the at least new pair of core and cavity blocks, thereby readying the injection molding apparatus for molding operation.
Macneil David F.
Macneil Ip Llc
Sim & Mcburney
LandOfFree
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