Apparatus for manufacturing a hollow synthetic resin product
AssigneeTigers Polymer Corporation
InventorsYoshikatsu Kohno, Yoshio Kawaguchi
Life of this patent
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Abstract
A hollow synthetic resin product manufacturing apparatus with an extruder having an extruding head for extruding a parison and a mold formed of lower and upper molding portions respectively having grooves, a cutter for cutting the parison extruded from the extruding head into a specified length, a robot having a hand for holding the parison at one point of the parison, and a control unit for moving the hand holding the above portion of the parison so that the parison be accommodated in the groove of the lower molding portion.
Claims15
An apparatus for manufacturing a hollow synthetic resin product, comprising:
- a lower molding portion having a top surface with a groove located therein,
- an upper molding portion having a bottom surface with a groove located therein, said upper and lower molding portions forming a mold when put together,
- means for inserting a parison into said groove of said lower molding portion, and
- means for inserting gas for inflating the parison after the parison is enclosed in said mold,
- said means for inserting a parison comprising:
- a cutter for cutting a parison extruded from an extruding head into a specified length;
- a robot having a hand for holding the parison at one point of the parison;
- and
- control means for moving the hand along the groove of said lower molding portion in such a manner that the parison held by the hand be accommodated in the groove.
An apparatus for manufacturing a hollow synthetic resin product by inflating a parison extruded from an extruding head, said apparatus comprising:
- a first mold formed of a first upper molding portion and a first lower molding portion and a second mold formed of a second upper molding portion and a second lower molding portion, the first and second upper molding portions respectively being provided at first and second molding positions and the first and second lower molding portions respectively moving between a place below an extruding head and the molding positions;
- a cutter for cutting a parison extruded from the extruding head into a specified length;
- a robot having a hand for holding the parison at one point of the parison;
- and
- first control means for moving the hand along a first groove made in the first lower molding portion in such a manner that the parison held by the hand be accommodated in the first groove when the first lower molding portion is below the extruding head, and for moving the hand along a second groove made in the second lower molding portion when the second lower molding portion is below the extruding head;
- and
- second control means for controlling the first lower molding portion accommodating the parison to move to the first molding position and for controlling a nozzle inserting device to inflate the parison in cooperation with the first upper molding portion as well as for controlling the second lower molding portion to move from the second molding position to below the extruding head, and to move the second lower molding portion back to the second molding position and the first lower molding portion to below the extruding head.
Dependencies are inferred from the claim text.