An injection molding machine includes: a clamping device having a fixed mold and a movable mold, configuring a mold, and a clamping force sensor to detect a clamping force of the movable mold to the fixed mold; an injection device having an injection nozzle and a screw to fill the mold with a molten resin via the injection nozzle; and a control device, wherein the control device monitors a variation of the clamping force from the clamping force sensor, causes a slow speed forward movement time at a timing of VP switching to be increased if the variation exceeds a predetermined upper limit, and causes the slow speed forward movement time at the timing of VP switching to be reduced if the variation falls below a predetermined lower limit.

An injection molding machine includes an injection apparatus that injects an injection material into a mold and a clamping apparatus that clamps the mold. An injection control device that controls injection of the injection material by the injection apparatus is connected to a clamping control device to communicate data therewith, the clamping control device controlling a magnet clamp of the clamping apparatus.

An operation abnormality detection method for detecting an operation abnormality in a molding device having a movable part includes: acquiring a prescribed measured value relating to operation of the movable part and calculating, as statistical information, an average value of prescribed information values based on the prescribed measured values: calculating a first threshold and a second threshold; acquiring a current measured value and comparing a current information value based on the current measured value with the greater of the first threshold and the second threshold; and issuing a warning if the current information value at least exceeds the greater of the first threshold and the second threshold.

In a mould-closing unit (F) for an injection-moulding machine for processing plastics, at least one mould carrier (10), which can be moved in a longitudinal direction (L-L) of the mould-closing unit (F), is arranged on a machine base (14) and between itself and a further mould carrier (12) forms a mould-clamping space (C), in which parts of at least one cyclically openable and closable injection mould (M) can be received. At least one linear guide (16), arranged in the longitudinal direction (L-L) on the machine base (14), serves for guiding the at least one movable mould carrier (10) when there is movement in the longitudinal direction (L-L). The mould carrier is supported on the machine base (14) and/or the at least one linear guide (16) by way of a load take-up (18), which has above the at least one linear guide (16) an articulating region (20) for the at least one movable mould carrier (10), which region is connected to the movable mould carrier with a force fit or material bonding and the stiffness of which is greater in the longitudinal direction (L-L) than in a direction transverse to the longitudinal direction (L-L). The forces acting on the guide of the movable mould carrier during the operation of the injection-moulding machine are minimized by the load take-up (18) and/or the articulating region (20) being elliptical in cross section, with the minor axis of the ellipse extending in a direction transverse to the longitudinal direction (L-L) of the mould-closing unit (F).

A manufacturing apparatus and method for a resin container. The apparatus includes at least: a heating unit configured to heat a preform; a blow molding part configured to mold a plurality of the preforms into a container; and a conveyance member configured to convey the plurality of preforms that has been heated to the blow molding part. The conveyance member includes: a plurality of holding arms each configured to hold one of the plurality of preforms; a connecting member configured to connect together the plurality of holding arms at equal intervals; and a pitch changing mechanism configured to change a pitch between the plurality of holding arms, and the pitch changing mechanism includes a stopper mechanism configured to position the plurality of holding arms at a predetermined wide pitch when an interval of the holding arms is changed from a narrow pitch to the predetermined wide pitch.

An operation screen of a magnet clamp is displayed on a controller of an injection molding machine. A mold clamping device of the injection molding machine is provided with the magnet clamp. The operation screen is for controlling the magnet clamp to perform clamping or unclamping of a mold.

An injection molding apparatus includes an injection unit, a mold clamping unit, and a controller. The mold clamping unit includes a toggle fixing plate, a fixed mold attachment portion, a movable mold attachment portion movable in a mold clamping direction, a motor, a ball screw configured rotated by the motor, a crosshead configured to move between the toggle fixing plate and the movable mold attachment portion due to rotation of the ball screw, and a toggle section coupled to the toggle fixing plate. The movable mold attachment portion and the crosshead are configured to move the movable mold attachment portion. A position detector is configured to detect a position of the crosshead. The controller controls the position of the crosshead based on a detection result of the position detector to make the toggle section operate to perform the mold clamping of the fixed mold and the movable mold.

A mold clamping device includes at least two mold platens and a plurality of rod-shaped members connecting two of the mold platens. An offset load detector is provided for at least one of the rod-shaped members at a connection portion between the at least one of the rod-shaped members and at least one of the mold platens. The offset load detector is configured to detect loads at two or more different detection positions, respectively, in a circumferential direction of the at least one of the rod-shaped members.

An operation screen of a magnet clamp is displayed on a controller of an injection molding machine. A mold clamping device of the injection molding machine is provided with the magnet clamp. The operation screen is for controlling the magnet clamp to perform clamping or unclamping of a mold.