Abstract: Provided are an injection molding machine and an injection molding method. An injection molding machine includes: a plasticizing unit which rotates a screw to plasticize a molding material inside a plastication cylinder, and an injection unit. The injection unit has: a plunger reciprocally moving inside an injection chamber, and an injection driving device reciprocally moving the plunger. By driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving a rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the molding material is controlled to reciprocate between the plastication cylinder and the injection chamber.

Abstract: An injection molding machine having vent mechanism includes a plastication device, an injection device, a junction, a vent-up sensor, and a controller. The vent-up sensor detects vent-up. When the vent-up is detected, the controller switches from normal conditions to vent-up suppression conditions. The vent-up suppression conditions have at least one of the followings: increasing a rotational speed of the plastication screw to be higher than that in the normal conditions; using retreat-metering when the retreat-metering is not performed in the normal conditions, wherein in the retreat-metering, in addition to a pressure of the resin material, a force in a retreat direction is applied to the injection plunger to move the injection plunger at a predetermined retreat speed in the metering; and increasing the retreat speed of the injection plunger to be higher than that in the normal conditions when the retreat-metering is performed in the normal conditions.

Abstract: Provided are an injection molding machine and an injection molding method. An injection molding machine includes: a plasticizing unit which rotates a screw to plasticize a molding material inside a plastication cylinder, and an injection unit. The injection unit has: a plunger reciprocally moving inside an injection chamber, and an injection driving device reciprocally moving the plunger. By driving the injection driving device to move the plunger backward and forward inside the injection chamber, and driving a rotary driving device to alternately rotate the screw in a normal rotation direction and a reverse rotation direction, the molding material is controlled to reciprocate between the plastication cylinder and the injection chamber.

Abstract: An injection molding machine having vent mechanism includes a plastication device, an injection device, a junction, a vent-up sensor, and a controller. The vent-up sensor detects vent-up. When the vent-up is detected, the controller switches from normal conditions to vent-up suppression conditions. The vent-up suppression conditions have at least one of the followings: increasing a rotational speed of the plastication screw to be higher than that in the normal conditions; using retreat-metering when the retreat-metering is not performed in the normal conditions, wherein in the retreat-metering, in addition to a pressure of the resin material, a force in a retreat direction is applied to the injection plunger to move the injection plunger at a predetermined retreat speed in the metering; and increasing the retreat speed of the injection plunger to be higher than that in the normal conditions when the retreat-metering is performed in the normal conditions.

Abstract: The disclosure provides an injection molding machine which is controlled by a control device according to molding conditions and injects and fills a flowable molding material into a mold to perform molding. The control device includes an input control device, a molding condition storage device and a display control device. The input control device receives input of molding conditions input from the input device, the molding condition storage device stores a plurality of molding conditions, and the display control device displays on a display device a list of each item included in each of the plurality of molding conditions in a table format represented by rows or columns.

Abstract: According to one aspect of the disclosure, an injection molding machine is provided. In the injection molding machine, a control device includes a molding condition storage device and a determination device. The molding condition storage device stores molding conditions. Here, the molding conditions include at least one transition molding condition from a state in which molding is stopped to the initiation of normal molding, and a normal molding condition during normal molding. The determination device determines whether or not to perform molding using the transition molding conditions based on at least one of a time after the molding is stopped and a temperature at a predetermined position after the molding is stopped.

Abstract: The cassette mold type injection molding machine controls a first temperature control circuit to supply a heat medium having a heating temperature from a first heating device to a matrix supply path, controls a second temperature control circuit to supply the heat medium having a cooling temperature from a second heating device to the core cavity supply path, and performs cassette mold cool down control in which a bypass control valve is controlled to connect a bypass path and a main body supply path, such that a second heating device or a core cavity supply path is connected to a main body supply path, and thus the heat medium having the heating temperature is supplied to the matrix and the heat medium having the cooling temperature is supplied to a cassette mold main body and a core cavity portion.

Abstract: The cassette mold type injection molding machine controls a first temperature control circuit to supply a heat medium having a heating temperature from a first heating device to a matrix supply path, controls a second temperature control circuit to supply the heat medium having a cooling temperature from a second heating device to the core cavity supply path, and performs cassette mold cool down control in which a bypass control valve is controlled to connect a bypass path and a main body supply path, such that a second heating device or a core cavity supply path is connected to a main body supply path, and thus the heat medium having the heating temperature is supplied to the matrix and the heat medium having the cooling temperature is supplied to a cassette mold main body and a core cavity portion.

Abstract: A music box comprising a blower unit and a flute unit. Each flute in the flute unit includes a mouth and a wind inlet hole for feeding air to the mouth and the wind inlet holes for feeding air to the flute are selectively opened/closed to produce a desired melody. Further, an air outflow hole is provided in a wind trunk of the blower unit and a disk having holes for cyclically opening/closing the hole is rotatably provided. Thus the pressure of wind fed to each flute changes at a predetermined interval of time. As a member for recording a melody, the following two methods are available. One method is a disk having protrusions for pressing the key members of the flute unit and another method is a film member which opens/closes the air inlet hole of the flute unit.

Abstract: A series of toys having unique motions are activated by a fluid propelled propulsion device. The propulsion device includes a housing with a cylinder located thereon. A pressurized fluid reservoir connects to the cylinder via a valve. The valve has provisions for introducing pressurized fluid into the cylinder and exhausting pressurized fluid out of the cylinder. A piston is located in the cylinder and in response to introduction of pressurized fluid into the cylinder, moves in a power stroke. This is followed by an exhaust stroke wherein the piston moves in the opposite direction. A piston output member is associated with the piston and extends out of the cylinder. The piston output member moves linearly in response to movement of the piston in its power and exhaust strokes. A connecting mechanism connects the piston output member and the valve. The connecting mechanism includes a first movable member and a second movable member and a biasing member.

Abstract: A fluid engine for use in pneumatically operated toys such as wheeled vehicles or airplanes. The engine housing has a fluid input cavity which is in continuous fluid communication with a source of compressed air, a fluid delivery cavity which is in continuous communication with a piston cavity bounded by a movable piston mounted in a cylinder member and which is separated from the fluid input cavity by a wall having a valve opening therein, and an open-ended exhaust cavity which is separated from the fluid delivery cavity by a wall having an exhaust opening therein. A valve rod with a tapered end is movably housed in the exhaust cavity to open the valve opening and close the exhaust opening during the piston's power stroke, and to close the valve opening and open the exhaust opening during the piston's exhaust stroke. The valve rod can be operatively connected to the piston to act in synchronism with it either by use of a cam or by use of a network of connecting links.

Abstract: A musical instrument is disclosed which is capable of being operated in either of two different ways--through the use of a rotary record member, or through the manual manipulation of individual keys. The instrument disclosed includes a windchest used to supply air to either of two different principal valves, each of which is capable of being manipulated so as to set up resonance within an associated resonance chamber. Secondary valves are provided for varying the acoustically effective dimensions of the resonating chambers. All of the valves have actuators which extend into an area of the instrument capable of serving as a holder for the record member. When the record member is inserted in this holder and rotated cams on the record member engage the actuators so as to cause the production of a desired series of notes. Keys on the instrument are capable of being manually manipulated so as to cause the movement of levers into engagement with the actuators when no record member is present.

Abstract: A toy musical vehicle can be constructed within a simulated vehicle body so as to utilize a single motor to simultaneously drive and operate a music producing mechanism and the vehicle. The vehicle is driven by coupling the motor to wheels of the vehicle through the use of a conventional gearing arrangement. The music producing mechanism preferably includes a fan which supplies air under pressure to a wind chest coupled to the motor. This wind chest is utilized in conjunction with valve actuators and valves which control the release of air so as to create sound in a conventional manner. The valve actuators are normally biased outwardly from the wind chest by the pressure of the air within the wind chest so that followers on these actuators are in a position to be engaged by any of a plurality of cams formed so as to extend from the surface of a rotary record member. The periphery of such a record member is formed as a ring gear and mates with a spur gear driven by the motor through a drive train.