摘要:
A compression-forming system comprising a molten resin mass-feeding device equipped with the holding portions for holding the molten resin masses, a compression-forming machine equipped with the metal molds, and a molten resin mass position detector, wherein said molten resin mass position detector is a temperature sensor, and said temperature sensor measures the temperature of a portion on the outer side of an allowable range in which the molten resin masses are fed to the metal molds, and judges the presence of the molten resin masses on said portion by the temperature of said portion of the metal molds to detect that the molten resin masses are defectively handed over.
摘要:
An apparatus (31) for correcting the bending of the molten resin includes a temperature-adjusting device (32) arranged surrounding an extrusion passage (12) for extruding the molten resin (8) of an extrusion die head (7) along the direction of extruding the molten resin (8), a measuring means (33) for measuring the horizontal position of the molten resin (8) extruded from an extrusion opening (20) of the extrusion passage (12), and a control means (34) for controlling the temperature-adjusting device (32) based on the results measured by the measuring means (33).
摘要:
An apparatus (31) for correcting the bending of the molten resin includes a temperature-adjusting device (32) arranged surrounding an extrusion passage (12) for extruding the molten resin (8) of an extrusion die head (7) along the direction of extruding the molten resin (8), a measuring means (33) for measuring the horizontal position of the molten resin (8) extruded from an extrusion opening (20) of the extrusion passage (12), and a control means (34) for controlling the temperature-adjusting device (32) based on the results measured by the measuring means (33).
摘要:
[Problem] To provide a metal mold for forming a preform decreasing the hitting of metal molds at a portion where a slide insert metal mold and a cavity metal mold undergo the sliding yet maintaining the pressure.[Means or Solution] The metal mold 33 for forming the preform includes a slide insert metal mold 36 split into at least two for forming at least a nozzle portion of the preform, wherein a pressure is maintained by using a fitting portion which includes a preform-forming portion of the slide insert metal mold 36 coupled together from the split state and a cavity metal mold 34. Auxiliary fitting portions 40a, 40b where the slide insert metal mold 36 and the cavity metal mold 34 undergo the sliding is formed at a position of not forming the preform separate from the fitting portion that includes the preform-forming portion.
摘要:
A compression-forming system comprising a molten resin mass-feeding device equipped with the holding portions for holding the molten resin masses, a compression-forming machine equipped with the metal molds, and a molten resin mass position detector, wherein said molten resin mass position detector is a temperature sensor, and said temperature sensor measures the temperature of a portion on the outer side of an allowable range in which the molten resin masses are fed to the metal molds, and judges the presence of the molten resin masses on said portion by the temperature of said portion of the metal molds to detect that the molten resin masses are defectively handed over.
摘要:
To provide a metal mold for forming a preform decreasing the hitting of metal molds at a portion where a slide insert metal mold and a cavity metal mold undergo the sliding yet maintaining the pressure. The metal mold (33) for forming the preform includes a slide insert metal mold (36) split into at least two for forming at least a nozzle portion of the preform, wherein a pressure is maintained by using a fitting portion which includes a preform-forming portion of the slide insert metal mold (36) coupled together from the split state and a cavity metal mold (34). Auxiliary fitting portions (40a, 40b) where the slide insert metal mold (36) and the cavity metal mold (34) undergo the sliding is formed at a position of not forming the preform separate from the fitting portion that includes the preform-forming portion.