A protective cover for a plasticizing cylinder of a shaping machine has an elongate internal space which is enclosed by at least one wall and in which the plasticizing cylinder can be arranged. A terminal box for heating strips arranged on the plasticizing cylinder projects into the elongate internal space, and the at least one wall has an opening which is closed by an openable cover member. In an opened condition of the openable cover member, the opening allows access to the terminal box or the interior of the terminal box.

An injection device (2) of an injection molding machine (1) includes a heating cylinder (18) having a gas introduction port (30) and a screw (19), and a gas supply device (5) is connected to the gas introduction port (30). The gas supply device (5) includes a gas supply source (33) and a gas pressure regulating unit (34). The gas pressure regulating unit (34) regulates a gas pressure and supplies the gas when a gas from the gas supply source (33) is introduced into the gas introduction port (30). Specifically, the gas pressure is caused to change in a molding cycle and is increased to a high pressure in a metering process (61). That is, a pressure increasing period (71) in which the gas pressure increases at least partially overlaps with the metering process (61).

In an injection molding system, bolt position related information recognizing unit which recognizes an attachment position of a bolt for each attachment is provided. Based on the attachment position of the bolt, or the attachment position of the bolt and a phase of the bolt stored in the bolt position storage unit, bolt attaching and detaching unit attaches and detaches the bolt to and from the attachment. Thus, even if the position of the bolt varies in accordance with the attachment, it is possible to attach and detach the bolt by recognizing the attachment position of the bolt.

An injection molding machine includes: a timing belt wound around a driving-side rotation member and a driven-side rotation member and configured to transmit power from the driving-side rotation member to the driven-side rotation member; a driving-side rotation detecting unit configured to detect a rotational speed of the driving-side rotation member; a driven-side rotation detecting unit configured to detect a rotational speed of the driven-side rotation member; and an abnormality detecting unit configured to detect an abnormality in the timing belt based on a relative speed difference between the rotational speed of the driving-side rotation member detected by the driving-side rotation detecting unit and the rotational speed of the driven-side rotation member detected by the driven-side rotation detecting unit in a predetermined period after the driving-side rotation member starts to rotate from a stopped state.

An injection device is equipped with a brake mechanism provided on a rotary shaft of an injection motor extending toward a screw side along an axial direction of the screw and configured to brake rotation of the rotary shaft, an injection motor connecting portion extending in a direction substantially perpendicular to the axial direction, and an injection motor supporting portion connected to the injection motor connecting portion so as to be adjustable in position relative to the injection motor connecting portion, and configured to support the injection motor and the brake mechanism.

A gib includes a metallic substrate having a first face and a second face and an attachment disposed on the metallic substrate. The attachment includes a first functional surface disposed on the first face of the metallic substrate. The first functional surface is configured as a bearing surface. The attachment may be formed of a fabric resin composite material.

An injection device is equipped with a brake mechanism provided on a rotary shaft of an injection motor extending toward a screw side along an axial direction of the screw and configured to brake rotation of the rotary shaft, an injection motor connecting portion extending in a direction substantially perpendicular to the axial direction, and an injection motor supporting portion connected to the injection motor connecting portion so as to be adjustable in position relative to the injection motor connecting portion, and configured to support the injection motor and the brake mechanism.

An injection molding machine includes a mold clamping device provided on a bed and an injection device provided on the bed and slidable freely to a front side and to a rear side. The bed and the injection device are connected to each other by one or a plurality of hoses, and at least one of wiring and piping is housed in the hose. The hose is exposed from a first opening opened on a side of the bed to a second opening opened on a side of the injection device and is configured with a predetermined length of slack in an exposed section to facilitate a sliding movement of the injection device. A hose support member is fixed to the injection device below the second opening, and the exposed section of the hose is partially supported by the hose support member.

In an injection molding system, bolt position related information recognizing unit which recognizes an attachment position of a bolt for each attachment is provided. Based on the attachment position of the bolt, or the attachment position of the bolt and a phase of the bolt stored in the bolt position storage unit, bolt attaching and detaching unit attaches and detaches the bolt to and from the attachment. Thus, even if the position of the bolt varies in accordance with the attachment, it is possible to attach and detach the bolt by recognizing the attachment position of the bolt.

An injection molding machine includes a mold clamping device configured to clamp a mold, an injection device configured to inject an injection material, and a plurality of air drive devices including at least two of: an air-driven clamper device mounted on the mold clamping device and configured to clamp and unclamp a mold; an air-driven platen drop preventing device configured to prevent a platen of the mold clamping device from dropping; and an air-driven shut-off nozzle device adapted to be provided in the injection device. At least two air valves configured to supply air to the air drive devices are provided at a same location, which is an air equipment mounting portion.