A multi-mold block drive device includes a guide seat and a plurality of speed reductions units. The guide seat includes opposite inner and outer peripheral surfaces, and a plurality of spaced-apart guide holes extending through the inner and outer peripheral surfaces. A plurality of drivers correspond respectively to the guide holes. Each speed reduction unit is connected between one of the guide holes and a corresponding driver, and includes a guide screw rod having an externally threaded portion, a guide sleeve having an internal thread facing the externally threaded portion, and a plurality of planetary screws interposed between the guide screw rod and the guide sleeve. Each planetary screw has a drive thread meshing with the externally threaded portion and the internal thread. An injection molding machine having the multi-mold block drive device is also disclosed.

In an injection molding machine, which includes an injection unit, a base that supports the injection unit, and a swivel shaft provided on the injection unit, the injection molding machine includes a driven rotating member provided on the swivel shaft and which rotates integrally with the swivel shaft, and an input unit for inputting a rotational force to the driven rotating member.

A plastic injection molding machine and molding method related to an injection molding machine for stack molds, wherein the central portion of the mold remains fixed and it has two molding faces that act on the fixed central portion by means of a hydraulic chamber that produces the clamping force and prevents the deformations due to bending on the molding faces. Likewise, it relates to a molding method.

A linear motion mechanism for moving an injection unit in the front-rear direction relative to a machine base supporting the injection unit includes: a pair of first linear guides configured to linearly move the injection unit relative to the machine base; and one or more pairs of second linear guides arranged on the rear side relative to the pair of first linear guides, and configured to linearly move the injection unit relative to the machine base.

A movable platen according to the present invention includes: a mold clamping platen 42 having a projecting portion 62 in a mold closing direction-side surface; a mold mounting platen 44 mounted to the projecting portion 62 of the mold clamping platen 42; and a guide mechanism 50 fixed to the mold clamping platen 42 and supporting the mold mounting platen 44. Only the mold clamping platen 42 is fixed to the guide mechanism 50, while the mold mounting platen 44 is not fixed but placed on platen surface support portions 52.

A safety apparatus includes a safety bar that is capable of moving in a mold clamping direction and a mold opening direction, in conjunction with a moving platen provided with a movable mold, and a latch that contacts the safety bar when a door, which is provided in a cover of an injection molding device, is open, wherein the latch includes a notch in a surface thereof on the mold-opening-direction side.

A machine base for an injection molding machine is equipped with an upper frame supporting at least a mold clamping device of the injection molding machine from below, two lower frames supporting the upper frame from below in a state of being in contact with a bottom surface of the upper frame, and a plurality of height adjusting mounts respectively attached to bottom surfaces of the two lower frames and configured to adjust the height of the injection molding machine.

An apparatus for aligning an outlet of an injection unit with an inlet of a mold mounted between platens of a molding machine includes a positioning assembly interconnecting the injection unit to the molding machine. The positioning assembly includes a first translation assembly configured to engender a first movement of the injection unit outlet along a translation plane, and a second translation assembly configured to engender a second movement of the injection unit outlet along the translation plane. The positioning assembly further includes a brake assembly extending between the first translation assembly and the second translation assembly. The brake assembly is configured to selectively create a compressive force between the first and second translation assemblies to maintain the position of the injection unit outlet.

A control device of an injection molding machine, for controlling operations of multiple elements operating during the period of mold closing or mold opening, includes: an operation starting condition setting unit for, concerning at least part of the elements, setting an operation starting condition of one of the elements that operates in conjunction with another one thereof by an operator operating an operation unit; a group setting unit for classifying the elements based on the operation starting conditions so that elements operating in conjunction with each other belong to the same group; an operation sequence setting unit for setting order of the operations of the elements belonging to the same group based on the operation starting conditions; and a drive command generator for generating drive commands for driving the injection molding machine so as to cause the elements belonging to the same group to operate in the set order.

The invention relates to a mold closing unit (10) for an injection molding machine for processing plastics and other compounds that can be plasticized, such as ceramic and pulverous compounds. Said mold closing unit comprises at least one machine bed (20), at least one stationary platen (14), and at least one platen (16) that can be moved relative to the stationary platen (14) by means of a drive mechanism (44), wherein the movable platen (16) can be moved on a slide (22) having guide shoes (26) along at least one guide (24) attached to the machine bed (20), and the drive mechanism (44) has at least one gear rack drive (38) driven by at least one drive motor (32). Because at least two gear racks (34) are fixedly connected to the machine bed (20) and because the drive motor (32) is fixedly connected to the slide (22) and, in the event of a movement of the movable platen (16), moves synchronously with the movable platen (16) in the same direction, occurring tilting torques are reduced and safe operation of the mold closing unit is ensured.