Abstract:
Apparatus for feeding molten resin includes a holding unit that moves on a track and at least a pair of holders capable of holding and releasing the molten resin accompanying the opening and closing of the holding unit. A base portion is utilized for supporting the holders so as to be opened and closed and for holding the molten resin together with the holders. The molten resin discharged from an extrusion-forming machine and cut by a cutter is held by the holding unit, and it fed from the holding unit to a female mold of a compression-0molding machine. At the time of cutting the molten resin, a cutter mark is formed by the cutter on a cut surface of the molten resin.
Abstract:
[Problems] To provide an apparatus for feeding molten resin capable of preventing the adhesion of matters on the holding units for holding the molten resin, and of shortening the cycle for cleaning the holding units.[Means for Solution] The apparatus includes holding units 17 having holders 22, 23 that can be opened and closed to hold a molten resin that is discharged from an extruder and is cut by a cutter, and a base portion 21. The holding unit 17 opens the holders 22 and 23 to throw the molten resin down to a female mold in a compression-molding machine. A plurality of longitudinal grooves 18 extending up and down are formed in the inner circumferential surface of the base portion 21.
Abstract:
The present invention relates to manufacture of container product with a constant level of quality, wherein the performance is constant, by resolving problems including transformation of perform performance caused by the temperature variation of the preform; or by the variation in the stretching blow molding due to a thermal difference between the surface and the inner part of the preform, resulting from the thickness thereof, in order to industrialize a new molding method recognized to be an excellent molding method from the point of view of economic efficiency and production efficiency, wherein compression molding and stretch blow molding are performed continuously. By a method or device for manufacturing continuously synthetic resin containers, preforms are molded by compression with a compression molding machine, then stretch blow molding is performed with a stretch blow molding machine. After discharging molded preforms from the compression molding machine, an even-heating treatment of preforms, a partial heating or partial cooling treatment according to need and then stretch blow molding are performed.
Abstract:
A printed metallic container comprising a metallic substrate provided with a titanium oxide-containing organic resin coat film layer as a substrate coat film for printing having a photosensitive characteristic of I.times.t.sub.1/2
Abstract:
The present invention relates to manufacture of container product with a constant level of quality, wherein the performance is constant, by resolving problems including transformation of perform performance caused by the temperature variation of the preform; or by the variation in the stretching blow molding due to a thermal difference between the surface and the inner part of the preform, resulting from the thickness thereof, in order to industrialize a new molding method recognized to be an excellent molding method from the point of view of economic efficiency and production efficiency, wherein compression molding and stretch blow molding are performed continuously. By a method or device for manufacturing continuously synthetic resin containers, preforms are molded by compression with a compression molding machine, then stretch blow molding is performed with a stretch blow molding machine. After discharging molded preforms from the compression molding machine, an even-heating treatment of preforms, a partial heating or partial cooling treatment according to need and then stretch blow molding are performed.
Abstract:
[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.
Abstract:
The present invention provides a strong heat seal to a thermoplastic polyester container which can withstand hot water treatment such as retorting, and to a heat sealed container. A heat-sealable closure is also provided. It is composed of a laminate consisting of a heat-seal layer comprising as a main component a copolymerized polyester resin having a softening temperature of 120.degree. C. and a glass-transition temperature of 30.degree. to 85.degree. C., a metal substrate, and an epoxy-phenol resin primer layer interposed between them. Preferably, the container has a heat seal portion composed of a thermoplastic polyester having a fusion temperature in the crystalline state of at least 200.degree. C. This polyester portion is oriented and crystallized or heat-crystallized.
Abstract:
Two thin plate members preferably made of metallic sheets are prepared and one end surface of at least one of the members is formed so as to have an inwardly curved recess which constitutes a gap when the end surfaces of the members are linearly butted together. A laser beam is irradiated along the butted portion of the members. The gap may have various forms having a predetermined width. The two members to be butt-welded may be substituted by two end portions of a single metallic sheet having a rectangular configuration in the case where a shell portion of a can is formed by the butt-welding operation.
Abstract:
A metallic container composed of a first and a second section each composed of a metallic cup-like fabricated article having a primer coating, the two sections being lap-bonded at their circumferential open end portions by means of a thermoplastic film-like adhesive. A process for producing said metallic container is also provided which comprises a fabricating step of producing the first and second sections, an adhering step of heat-adhering a film-like adhesive to the peripheral surface of the open end portion of the second section to be laid inwardly, and a bonding step of bonding the open end portions of the first and second sections. In the metallic container, the film-like adhesive, forming a circumferential overlapping portion, is adhered to the edge of the open end portion of the second section and its inner circumferential surface following the edge.
Abstract:
A process and an apparatus for producing a welded can body having an organic coated welded part are provided in which the exposed metal portion on the inside of the welded part of the can body and its vicinity is covered with a tape of an organic resin alone or a mixture of an organic resin with an inorganic material such as a pigment, a metal, etc. The resin tape is entirely supported by a mandrel to be disposed inside the can body, and pressed against the inside surface of the welded part and its vicinity. By heating the welded part of the can body, the resin tape is heated during pressing.