A pull or push rod for a molding machine having a groove. The groove is suitable for forming a positive-locking connection with a locking nut, by which positive-locking connection forces are transmittable between the locking nut and the pull or push rod. The groove has a groove cross-section, has at least two groove flanks, and has a groove base. The at least two groove flanks, viewed in the groove cross-section, each transition with at least one transition curvature into the groove base. The groove base in the groove cross-section is at least partially formed as a curvature, and the curvature of the groove base differs from the transition curvatures of the groove flanks.

A pull or push rod or locking nut for a molding machine has an undercut, and the undercut has an undercut cross-section, a side wall, and an undercut ramp. The side wall transitions via a first transition curvature into an undercut base, and the undercut base transitions via a second transition curvature into the undercut ramp. The undercut base, viewed in the undercut cross-section, is at least partially designed as a curvature, and the curvature of the undercut base differs from the first and/or the second transition curvature.

In an injection molding machine in which intermediate molds are disposed movably in a mold opening/closing direction between a movable platen attached with a movable mold and a stationary platen attached with a stationary mold, setting is simplified when individually setting a setting value related to molding using the movable mold and the intermediate mold and a setting value related to molding using the stationary mold and the intermediate mold. In a method for controlling an injection molding machine 11 in which intermediate molds 18 are disposed movably in a mold opening/closing direction between a movable platen 15 attached with a movable mold 14 and a stationary platen 17 attached with a stationary mold 16, single setting enables setting of both of a setting value related to molding using the movable mold 14 and the intermediate mold 18 and a setting value related to molding using the stationary mold 16 and the intermediate mold 18.

A clamping unit of an injection molding machine having platens and columns includes a clamping-type locking apparatus by which a column is securable in relation to one of the platens at any position along a travel path of the platens relative to one another. The clamping-type locking apparatus includes a clamping jacket and a clamping device for clamping-type locking of the column in relation to the clamping jacket. The clamping device is displaceable together with the column along the travel path within the clamping jacket, when the clamping device assumes a released state, and the clamping device is configured to effect a clamping action by generating between the clamping jacket and the clamping device a locking force which is directed radially outwards in relation to a longitudinal axis of the column.

An injection molding machine device and a pneumatic support mechanism, the injection molding machine device includes a rack, at least one guide rail fixed to the rack, at least two guide rods, a fixed mold base fixed to one end of the rack, a movable mold base arranged opposite to the fixed mold base, at least one pneumatic support mechanism, and a cylinder. Both ends of each guide rod are fixed to the rack. The movable mold base has at least two receiving holes for receiving the guide rods, and slides on the guide rods. The pneumatic support mechanism has a lower support plate positioned above the guide rail, and an upper support plate fixed to the movable mold base. At least one accommodating cavity is arranged between the upper and lower support plates to receive the cylinder. The height of the movable mold base is adjustable by the cylinder.

A closing unit of a shaping machine includes a moveable clamping plate, a push rod connected to the moveable clamping plate and having an outside profile, a divided locking nut provided with an inside profile, and a closing force mechanism for acting on the moveable mold clamping plate with a closing force. The push rod is lockable in a closed position of the locking nut by the cooperation of the inside profile and the outside profile with the closing force mechanism. For displacement of the locking nut between an opened and the closed position, a rotary drive is provided for rotation of a shaft, and at least one toothed rack cooperates with the shaft by way of a tooth arrangement and is connected to the locking nut.

A mold clamping apparatus includes a mold clamping cylinder. The mold clamping cylinder has, in a region thereof located below left and right lower tie bars and above left and right sliders, a left grooved portion opened leftward and elongated horizontally, a right grooved portion opened rightward and elongated horizontally, and a leg portion formed between the left and right grooved portions. The leg portion and the left and right grooved portions together form a constricted part.

A mold clamping apparatus includes a fixed platen, a mold clamping cylinder, a movable platen moved by the mold clamping cylinder toward the fixed platen, and a mold opening/closing actuator for moving the movable platen or the mold clamping cylinder. The mold clamping apparatus further includes a mold thickness adjustment cylinder provided between the mold clamping cylinder and the movable platen, the mold thickness adjustment cylinder being configured to generate an axial force larger than an axial force in an expanding direction of the mold opening/closing actuator and smaller than an axial force in a contracting direction of the mold clamping cylinder.

An injection foam molding machine of the invention includes: a movable mold platen; a fixed mold platen; a mold fastening hydraulic cylinder that is provided at each of four corners of both mold platens; a tie bar that is driven by the hydraulic cylinder to fasten the molds; two sets of mold opening and closing actuators that drive the movable mold platen to move close to or away from the fixed mold platen; two sets of dedicated core back devices; and a control device that controls the two sets of mold opening and closing actuators and the two sets of dedicated core back devices, wherein the control device includes a dedicated core back program that simultaneously controls the two sets of mold opening and closing actuators and the two sets of dedicated core back devices during a foaming core back operation of moving the movable mold platen away from the fixed mold platen.

A lock assembly for releasably coupling a platen to a tie bar of an injection molding machine includes first and second lock nut segments translatable in a transverse between locked and unlocked positions for respectively engaging and disengaging the tie bar, and a carrier assembly for coupling the lock nut segments to the platen. The carrier assembly provides a slide surface for slidably supporting the lock nut segments during the translation of the lock nut segments between the locked and unlocked positions, and the carrier assembly resiliently supports the slide surface for axial movement of the slide surface with the lock nut segments between an unloaded position in which the lock nut segments are spaced away from the platen by a clearance gap, and a loaded position in which the lock nut segments bear against the platen.