An injection apparatus of the invention injects a molding material supplied from a material supply port, and includes a die, a material supply apparatus that extrudes the molding material that is thread-like or strip-like via the die, and a material guide apparatus that guides the molding material supplied via the die to the material supply port. The material discharge port of the material supply apparatus and the die protrude downward in the material supply apparatus, and a pressure inside the material guide apparatus is reduced by a pressure reducing apparatus from a pressure reducing port provided above the material discharge port of the material supply apparatus and the die.

A thermosetting composition comprising the following component (A) and component (B), and having a viscosity of 0.1 Pa.Math.s or higher and 100 Pa.Math.s or lower at a shear rate of 10 s.sup.−1 at 25° C. measured in accordance with JIS K7117-2. (A) polybutadiene having a structural unit represented by the following formula (1A) and a structural unit represented by the following formula (1B), wherein the terminal group comprises a methacryloyl group or an acryloyl group (B) a thermal polymerization initiator

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A plasticizing unit for a shaping machine for plasticizing a material to be plasticized, wherein at least one plasticizing screw is rotatably mounted in a plasticizing cylinder and stationarily mounted in relation to a longitudinal axis of the plasticizing cylinder, wherein the plasticizing cylinder has at least one opening at a periphery of the plasticizing cylinder, and that at least one opening connects the plasticizing cylinder to at least one mass storage means, and that there is provided an actuator for expelling a storage mass which can be stored in the at least one mass storage means.

The present disclosure provides an injection machine for a recycled plastic injection molding system. The injection machine comprises a supplying system configured to drive plastics from an entry end to downstream of receiving route, a heating system disposed to downstream of the supplying system and configured to melt plastics and drive plastics to the downstream of receiving route, and a buffer system disposed to downstream of the heating system and configured to be a receiving state and a supplying state. When the buffer system is in the receiving state, the buffer system is configured to receiving plastics from the heating system. When the buffer system is in the supplying state, the buffer system is configured to drive plastics to downstream of the receiving route.

A plasticizing apparatus, includes: a drive motor; a rotor that is rotated around a rotation axis by the drive motor and that has a groove forming surface on which a groove is formed; a barrel that has a facing surface facing the groove forming surface and that includes a communication hole in the facing surface; a heating portion that heats a material supplied to between the groove and the barrel; and a controller that controls the drive motor and the heating portion to plasticize the material supplied to between the groove and the barrel and discharge the material from the communication hole, the facing surface includes a first region and a second region that is closer to the communication hole than is the first region, the controller controls the heating portion to set a temperature of the second region to be higher than a temperature of the first region, and the controller controls the heating portion to reduce a temperature difference between the first region and the second region when the material includes a crystalline resin as compared with a case where the material includes an amorphous resin.

An injection apparatus of the invention injects a molding material supplied from a material supply port, and includes a die, a material supply apparatus that extrudes the molding material that is thread-like or strip-like via the die, and a material guide apparatus that guides the molding material supplied via the die to the material supply port. The material discharge port of the material supply apparatus and the die protrude downward in the material supply apparatus, and a pressure inside the material guide apparatus is reduced by a pressure reducing apparatus from a pressure reducing port provided above the material discharge port of the material supply apparatus and the die.

After the injection shaft moves backward and the gas is supplied into the injection chamber, it is desired to accurately control the gas supply amount in the injection device in which the injection shaft is moved forward to compress and dissolve the gas in the molding material in the injection chamber. An injection device of the disclosure supplies a gas into an injection chamber via a gas supply hole which passes through an injection shaft and is opened at a tip surface of the injection shaft. The injection device and a gas dissolution method thereof according to the disclosure perform backward and forward movement of the injection shaft for a plurality of cycles. The injection device of the disclosure has at least one seal ring and at least one piston ring aligned in an axial direction on an outer circumferential surface of the injection shaft.

[Problem] To provide an injection apparatus including a flow path switching mechanism that is simple in construction and low in cost. [Solution] An injection apparatus (1) includes a plasticization device (2) for melting resin, a first and second plunger injection devices (4, 5) for measuring an amount of resin and injecting the resin, an injecting portion (8), and a flow path switching block (7) that connects the plasticization device, the first and second plunger injection devices and the injecting portion together. A first to fourth connecting flow paths (23a, 23b) and a flow path switching valve (21) are provided in the flow path switching block (7). The plasticization device (2), the first plunger injection device (4), the injecting portion (8) and the second plunger injection device (5) are connected to the first to fourth connecting flow paths (23a, 23b), respectively. When the flow path switching valve (21) is switched to a first position, the first and second connecting flow paths (23a, 23b) communicate with each other, and the third and fourth connecting flow paths (23c, 23d) communicate with each other, whereas when the flow path switching valve (21) is switched to a second position, the first and fourth connecting flow paths (23a, 23d) communicate with each other and the first and third connecting flow paths (23b, 23c) communicate with each other.

An artificial fishing lure, and a method of constructing the same, the fishing lure including a translucent polymer body, and a separately formed insert member at least partially embedded in the polymer body, the insert member being less translucent that the polymer body and formed to mimic a physical trauma in the fishing lure.

A control method for an injection moulding system having an extruder, feeding material continuously to an accumulator, portioning material intermittently to an injection device, wherein the control method is configured to drive the extruder at a high speed or at a low speed respectively, the high speed and the low speed defining an extruder speed interval, the method comprising acquiring a value for an actual positional change for the accumulator (POS.sub.ACT), comparing the value for the actual positional change (POS.sub.ACT) with a predicted value for the positional change (POS.sub.PRED), and adjusting a speed of the extruder based on a result of the comparison.