An injection molding apparatus includes a plasticizing portion, a measurement injection portion that is disposed between the plasticizing portion and a molding mold, measures the plasticized material, and injects the measured plasticized material into the molding mold, a first drive portion changing a relative position between the plasticizing portion and the measurement injection portion, a pressure detection portion detecting a pressure inside the measurement injection portion and a control portion, in which the measurement injection portion is configured such that a volume of an internal space thereof, in which the plasticized material is stored, changes according to a change in the relative position between the measurement injection portion and the plasticizing portion, and the control portion executes at least one of a measurement operation of causing the measurement injection portion to measure the plasticized material by controlling the first drive portion to move the plasticizing portion and the measurement injection portion in a direction away from each other, and an injection operation of injecting the measured plasticized material into the molding mold by controlling the first drive portion to move the plasticizing portion and the measurement injection portion in a direction approaching each other depending on the pressure.

A molding machine configured to achieve space saving and simplification of the hydraulic circuit. Provided is a molding machine configured to form a molded body by closing, in a state where a parison is disposed by injecting molten resin between first and second molds capable of being opened and closed, the first and second molds and maintaining pressure applied to the first and second molds. A hydraulic circuit to conduct oil for generating hydraulic pressure; the flow adjustment valve, a pressure adjustment valve, and a path control valve included in the hydraulic circuit; and a multi-functional valve unit.

An injection molding apparatus includes a plasticizing portion, a measurement injection portion that is disposed between the plasticizing portion and a molding mold, measures the plasticized material, and injects the measured plasticized material into the molding mold, a first drive portion changing a relative position between the plasticizing portion and the measurement injection portion, a pressure detection portion detecting a pressure inside the measurement injection portion and a control portion, in which the measurement injection portion is configured such that a volume of an internal space thereof, in which the plasticized material is stored, changes according to a change in the relative position between the measurement injection portion and the plasticizing portion, and the control portion executes at least one of a measurement operation of causing the measurement injection portion to measure the plasticized material by controlling the first drive portion to move the plasticizing portion and the measurement injection portion in a direction away from each other, and an injection operation of injecting the measured plasticized material into the molding mold by controlling the first drive portion to move the plasticizing portion and the measurement injection portion in a direction approaching each other depending on the pressure.

An injection molding machine includes a belt transmission mechanism (mold opening/closing mechanism, ejector mechanism, screw drive mechanism, injection mechanism) configured to transmit drive force from a driving shaft (driving pulley) to a driven shaft (driven pulley) by means of a belt. The injection molding machine includes: a cover covering part or entirety of the belt; and a sensor attached to the cover and configured to detect an abnormality of the belt.

An injection molding machine includes a belt transmission mechanism (mold opening/closing mechanism, ejector mechanism, screw drive mechanism, injection mechanism) configured to transmit drive force from a driving shaft (driving pulley) to a driven shaft (driven pulley) by means of a belt. The injection molding machine includes: a cover covering part or entirety of the belt; and a sensor attached to the cover and configured to detect an abnormality of the belt.

A molding machine configured to achieve space saving and simplification of the hydraulic circuit. Provided is a molding machine configured to form a molded body by closing, in a state where a parison is disposed by injecting molten resin between first and second molds capable of being opened and closed, the first and second molds and maintaining pressure applied to the first and second molds. A hydraulic circuit to conduct oil for generating hydraulic pressure; the flow adjustment valve, a pressure adjustment valve, and a path control valve included in the hydraulic circuit; and a multi-functional valve unit.

A vertical injection molding machine is provided with a base, a lower mold mounting unit, an injection device, a pressing mold unit, and an upper mold mounting unit. Since the pressing mold unit and the injection device are all disposed on the upper seat of the base, and therefore are located above the lower seat, the lower mold mounting unit, the upper mold and the lower mold. With this design, the height to the ground from the lower seat can be substantially reduced. Namely, the heights of the lower seat, the lower mold mounting unit and the upper and lower molds with respect to the user are reduced to an ergonomic height, which makes operation of the injection molding easier and convenient, while reducing danger and enhancing work safety.

Disclosed are a power time sequence conversion method and device for manufacturing products in batches. A common power is sequentially coupled with power input ends of a plurality of execution mechanisms in different time periods, so as to provide in time order a plurality of power drives required during a batch manufacturing process of products, or provide power drives in different forms such as movements and forces to the same execution mechanism in a relaying manner in two adjacent time periods. A change gear capable of rotation and revolution is sequentially meshed with a plurality of tail end driving gears in different time periods, wherein the tail end driving gears are uniformly distributed in the circumferential direction and serve as power outputs, the revolution of the change gear is braked after each meshing to achieve the power drive of a certain execution mechanism in batch manufacturing of the products, and meanwhile, power drives in different forms such as movements and forces are provided to the same execution mechanism in a relaying manner through a torque converter. Compared with the conventional batch manufacturing of products where a plurality of independent power drives are required, the present invention has remarkable characteristics in low cost, low energy consumption, high reliability, good stability and the like.