Patent DE-102011116254-B3 (DE)
Title: Clutch and/or movement control device, useful for molding tools for injection-molding of plastics or pressure casting of metals, includes a form-closing unit controllable in parting planes, and a radial cylindrical pin
Inventor: KAEHNY ERNST
IPC: B22D17/26
Filed: 2011-10-18
Granted: 2013-03-21
Abstract: The clutch and/or movement control device comprises a form-closing unit, controllable in parting planes, with mold parts consisting of front and back ejector plates and/or ejector plate parcels, where: the mold parts have slider-like ejector elements arranged in the front ejector parcel; and a mechanical latch system is assigned to the movable mold parts when operating ejector bars to open the form-closing unit in predesignated succession from their close layer into an open position whose latch links of the close layer positively fix the mold parts. The clutch and/or movement control device comprises a form-closing unit, controllable in parting planes, with mold parts consisting of front and back ejector plates and/or ejector plate parcels, where: the mold parts have slider-like ejector elements arranged in the front ejector parcel; and a mechanical latch system is assigned to the movable mold parts when operating ejector bars to open the form-closing unit in predesignated succession from their close layer into an open position whose latch links of the close layer positively fix the mold parts, until the mold parts forming the parting planes are moved relative to each other in its open position. The mechanical latch system comprises a clutch bolt sitting at one of the mold parts, and a sleeve-shaped coupler retainer (3). The coupler retainer is arranged at a free end of the clutch bolt comprising a clutch can (5), which is connected to the coupler retainer and to a drag ring (4) specified in the back mold part and is coaxially surrounded with one of the coupler retainers into oblong holes of the retainer. A radially movable latching unit (7): sits in walls of the clutch can; and is placable with the clutch bolt or the coupler retainer, to which a push plate subjected by a spring sits into the axially displaceable coupler retainer. The push plate is more displaceable against a spring force by the clutch bolt introduced to the coupler retainer. The latching unit intervening in the oblong holes of the coupler retainer is formed in a two-piece manner and consists of first bolts provided in the drag ring and a second bolts lying opposite to the first bolts, where each bolt ends outside an installation space, to take up a pressure spring with a support between one end of the push plate and other end of the clutch can, in a blind hole (12) of the clutch can. The back mold part consists of only the ejector plate, with which the drag ring is secured over cheese head screws. The bolts inserted into radial blind holes and through holes are defined with a spring pin. The bolts are formed in an engaging portion into groove-shaped oblong holes of planar faces turned with their long sides. The oblong holes are formed at their end stop facing the clutch bolt in transition to the clutch retainer with a diagonally outward, fleeing rising shoulder, where the drag ring is provided with a sloping surface complementary to the shoulders. The clutch can is formed at their posterior end in its front panel with a central, more-sharp-edged assembly tool retainer and radials contours running concavely at a base of the blind holes in a circumferential direction with respect to the clutch bolt removed from the latching unit. The clutch bolt is arranged in a detention seat bore of a radial floating disc stored in the ejector plate of the front ejector plate parcel. The device further comprises a radial cylindrical pin introduced in the disc and the clutch bolt.