Abstract:
A system for producing disc-like optical data carriers comprises an injection-molding machine for manufacturing a disc-like substrate, and a finishing device for applying a reflective layer to the substrate and for applying a protective layer to the reflective layer. The injection-molding machine and the finishing device are integrated in a single production unit. An optical inspection unit is also integrated in the production unit.
Abstract:
A contact lens production line pallet system transports contact lens mold materials throughout a facility for producing ophthalmic lenses. Specifically, the contact lens production line pallet system includes a pallet for carrying one or more contact lens mold assemblies throughout a contact lens production line, the pallet having one or more first recesses formed in a surface thereof for receiving either a first mold half or a complementary second mold half, the first and second mold halves when placed together constitute an individual contact lens mold assembly. A conveyor device for transporting the pallet from station to station throughout the production line facility is provided, as is a locating device formed in the pallet surface for enabling precise positioning of the pallet at one or more manufacturing stations in the production line facility.
Abstract:
Disclosed is a thermoplastics molding device including two lateral molding chambers separated by a form setting chamber within a casing, a plurality of mold carriers respectively and horizontally supported on horizontal supports in each molding chamber and the form setting chamber at different elevations, reciprocating mechanisms respectively disposed in the molding chambers and the form setting chamber at the bottom and controlled to move the mold carriers in either chamber toward a top stop for permitting the mold carriers with molding dies thereon to be closely attached in a stack; and a shifting mechanism controlled to move molding dies from the mold carriers in either molding chamber to the mold carriers in the form setting chamber for quick setting of the moldings shaped in respective molding dies.
Abstract:
In an apparatus for producing hollow bodies from thermoplastic material in large numbers a plurality of stations in which the blanks are successively subjected to various treatment steps are arranged at horizontal spacings around the peripheral surface of a vertical, substantially cylindrical housing of an operating unit of the apparatus. The blanks to be treated are passed downwardly through the operating unit and a first one of the treatment stations therein to the next station therein. Arranged within the operating unit is a cam drum which rotates about a vertical axis and which has cams adapted to actuate tools for treating the blanks in at least some of the treatment stations. Two or more such operating units may be connected in succession for carrying out successive treatment operations on the blanks.
Abstract:
A cold isostatic press of the multiple container type including a press frame and an upper plug movable toward and away from a plurality of shaping containers and adapted to perform an operation of loading or unloading a first shaping material from a container and a pressure-forming operation on a second container concurrently at different positions, characterized in that the cold isostatic press includes a plurality of stationary shaping containers securely mounted on a fixed container frame. The press frame is supported linearly reciprocably or swingably for movement to and from a plurality of containers on the fixed container frame.
Abstract:
Preprinted rectangular blanks of longitudinally stretch-oriented foam sheet material are formed into cylinders by a continuous folder and seamer and transferred onto mandrels on which they are shrunken by heat to assume the shape of the mandrel. In forming containers, means are provided to place bottom blanks on the mandrels prior to the loading of the cylinders thereon so as to shrink the cylinders to sidewall shapes overlying the bottom blanks. The top curl on containers such as drinking cups and food tubs is formed after shrink forming and the bottom seam of the container is also reinforced by ironing after shrink forming. A method of continuously forcing and filling containers on a continuous in-line basis is also provided.
Abstract:
Articles are moulded from paraffin wax by melting the wax and then allowing the wax to solidify in a mould, the mould being refrigerated. The invention includes a machine for moulding the articles, and wax treated by the method.
Abstract:
Thin-walled articles of thermoplastic material are formed in a continuous apparatus starting with heating and extruding granular thermoplastic raw material in the form of a continuous web which is immediately stabilized by rapid cooling of its opposite surfaces and the stabilized web wherein the material sandwiched between the precooled outer surface layers remains at or near extrusion temperature is fed into a thermal forming station wherein shaping tools form the articles in the web without the need for further heating of the web. Adjustments are provided for correlating the cooling action to different materials and web feed rates, for varying the web feed rates and increments, and for varying the shaping tool movements to adapt for different materials and sizes of articles. After the formed articles are separated from the web the web residue is fed back to be mixed with incoming raw material at the extrusion station.
Abstract:
An apparatus for manufacturing thermoplastic duplication plates having a relief image transcribed thereto from a matrix which has a relief pattern in complemental relation to the transcribed relief image. To this end, the apparatus includes a hollow cylinder heated to a predetermined temperature and by which a thermoplastic resin sheet is, while clinging thereto, transported towards a transcription clearance. A movable platen supported for movement between standby and operated positions cooperates with the hollow cylinder to define the transcription clearance. During the transportation of the thermoplastic resin sheet towards the transcription clearance, it becomes substantially semi-fluidized so that, during passage of the thermoplastic resin sheet together with the matrix carried by the platen being moved towards the operated position, the thermoplastic resin sheet penetrates deep into indentations in the matrix which define the relief pattern, thereby completing a thermoplastic duplication plate.
Abstract:
A plastics introducing unit for a closure lining machine in which pellets are severed from a continuous rod and carried along part of a closed path to a transfer station where the pellets are deposited accurately centrally of the closures to be subsequently moulded into liners for the closures.