Injection molding machine

Claim 2

In an injection molding machine including a horizontal mold clamping unit, a mold, and a machine base, with the clamping unit supported at a defined edge area of the machine base, the mold clamping unit including a cylinder carrying mold assembly having a vertical frontal side, the assembly including a cast unit containing pressure cylinders, piston rods extending outwardly from said cylinders, and a movable mold carrier member mounted on said piston rods so as to be supportable by said cylinder carrying mold assembly, the mold including a stationary mold half and a movable mold half, with the stationary mold half being mounted to the vertical frontal side of the cylinder carrying mold assembly and the movable mold half being disposed in a region horizontally spaced from the area covered by the machine baSe and being carried by the movable mold carrier member, and with the stationary mold half having means associated therewith for connecting thereto an injection unit for injection operation transverse to the parting line defined by the mold halves, the improvement comprising: a mold mounting unit; detachable fastening elements associated with said mounting unit, said cylinder carrying mold assembly and said machine base; and means on said machine base defining strip-shaped connecting surfaces provided with linearly disposed bores for reception of said fastening elements; said fastening elements being constructed, and constituting means, for selectively either connecting said cylinder carrying mold assembly directly to said connecting surfaces of said machine base or connecting said cylinder carrying mold assembly directly to said mounting unit and connecting said mounting unit directly to said connecting surfaces of said machine base; and said mold mounting unit constituting means for supporting said movable mold carrying member; whereby when said cylinder carrying mold assembly is connected directly to said connecting surfaces of said machine base said movable mold carrier member is freely suspended beyond the area covered by said machine base and is supported only by said clamping unit, via said piston rods, and when said cylinder carrying mold assembly is connected directly to said mounting unit said movable mold carrier member is supported by said mounting unit.

Claim 3

An injection molding machine as defined in claim 1, wherein said mold mounting unit is provided with a plate-shaped section, two supporting arms extending from said plate-shaped section in the direction of the movable mold carrier and a transverse bar connected between said supporting arms, said plate-shaped section when mounted to the machine base being disposed within a surface area thereof.

Claim 4

An injection molding machine as defined in claim 2, wherein said plate-shaped section is fastened with said connecting surfaces of the machine base in such a manner that the planar lower surface of said plate-shaped section lies approximately in the plane of the upper surface of the machine base.

Claim 5

In an injection molding machine including a horizontal mold clamping unit, a mold, and a machine base, with the clamping unit supported at a defined edge area of the machine base, the mold clamping unit including a cylinder carrying mold assembly having a vertical frontal side, a movable mold carrier member and means connecting the cylinder carrying mold assembly and the carrier member, the mold including a stationary mold half and a movable mold half, with the stationary mold half being mounted to the vertical frontal side of the cylinder carrying mold assembly and the movable mold half being disposed in a region horizontally spaced from the area covered by the machine base and being carried by the movable mold carrier member, and with the stationary mold half having means associated therewith for connecting thereto an injection unit for injection operation transverse to the parting line defined by the mold halves, the improvement comprising: a mold mounting unit formed as a pivotal unit and provided with a plate-shaped section, two supporting arms extending from said plate-shaped section in the direction of the movable mold carrier, and a transverse bar connected between said supporting arms, said plate-shaped section, when said mounting unit is mounted to the machine base, being disposed within the area covered by the machine base; and a pivot pin extending along the upper front edge of the machine base and detachably connecting said mold mounting unit to the machine base; wherein the machine base and the cylinder carrying mold assembly are provided with detachable fastening means which, together with said pivot pin, constitute means for selectively either connecting said cylinder carrying mold assembly directly to said machine base or connecting said cylinder carrying mold assembly directly to said mounting unit and Connecting said mounting unit directly to said machine base; and said mold mounting unit constituting means for supporting said movable mold carrying member; whereby when said cylinder carrying mold assembly is connected directly to said machine base said movable mold carrier member is freely suspended beyond the area covered by said machine base and is supported only by said clamping unit, and when said cylinder carrying mold assembly is connected directly to said mounting unit said movable mold carrier member is supported by said mounting unit.

Claim 6

In an injection molding machine including a horizontal mold clamping unit, a mold, and a machine base, with the clamping unit supported at a defined edge area of the machine base, the mold clamping unit including a cylinder carrying mold assembly having a vertical frontal side, a movable mold carrier member and means connecting the cylinder carrying mold assembly and the carrier member, the mold including a stationary mold half and a movable mold half, with the stationary mold half being mounted to the vertical frontal side of the cylinder carrying mold assembly and the movable mold half being disposed in a region horizontally spaced from the area covered by the machine base and being carried by the movable mold carrier member, and with the stationary mold half having means associated therewith for connecting thereto an injection unit for injection operation transverse to the parting line defined by the mold halves, the improvement comprising: a mold mounting unit formed as a pivotal unit and provided with a plate-shaped section, two supporting arms extending from said plate-shaped section in the direction of the movable mold carrier, and a transverse bar connected between said supporting arms, said plate-shaped section, when said mounting unit is mounted to the machine base, being disposed within the area covered by the machine base; and a pivot pin extending along the upper front edge of the machine base and detachably connecting said mold mounting unit to the machine base; wherein the machine base and the cylinder carrying mold assembly are provided with detachable fastening means which, together with said pivot pin, constitute means for selectively either connecting said cylinder carrying mold assembly directly to said machine base or connecting said cylinder carrying mold assembly directly to said mounting unit and Connecting said mounting unit directly to said machine base; and said mold mounting unit constituting means for supporting said movable mold carrying member; whereby when said cylinder carrying mold assembly is connected directly to said machine base said movable mold carrier member is freely suspended beyond the area covered by said machine base and is supported only by said clamping unit, and when said cylinder carrying mold assembly is connected directly to said mounting unit said movable mold carrier member is supported by said mounting unit.

Claim 7

An injection molding machine as defined in claim 1 wherein said cylinder carrying mold assembly further comprises a carriage for selectively supporting such injection unit for injection operation longitudinally into the parting line defined by the mold halves.