Abstract:
A glassware forming machine blowhead arm assembly includes a one-piece blowhead arm body having at least one longitudinal air passage and a plurality of lateral air passages connected to the longitudinal passage. A blowhead chuck is removably received in a first end of each lateral passage and a cap is threaded into the second end of each lateral passage spaced from the associated blowhead chuck. A spring is captured in compression between each cap and an associated blowhead chuck biasing the blowhead chuck in a direction out of the lateral passage and away from the cap. In an exemplary embodiment of the disclosure adapted for use in conjunction with so-called isolated finish cooling blowheads, there are first and second longitudinal air passages extending through the blowhead arm body separately from each other, and separate air inputs in the body respectively coupled to the first and second longitudinal passages. Each lateral air passage is separately connected to the longitudinal air passages, and the blowhead chucks have separate air passages for feeding blow air and finish cooling air to a blowhead mounted in the chuck.
Abstract:
A system for directing cooling air onto a neck ring in a glassware molding machine that includes at least one air plenum stationarily disposed at a blank mold station and having an internal cavity for receiving cooling air flowing laterally inwardly toward the axis and at least one outlet opening adjacent to the axis, a plunger wear plate disposed overlying at least a portion of the air plenum, and having an array of axially oriented openings for receiving air directed from the air plenum, a plurality of openings in the neck ring arm for receiving air from the openings in the plunger wear plate across a gap between the neck ring arm and the plunger wear plate when the neck ring arm overlies the plunger wear plate, and a plurality of air passages in the neck ring for receiving air from the neck ring arm openings.
Abstract:
An air cooling mechanism for a machine for molding glass objects from molten glass. The mechanism comprises a mold (14) including mold halves each having a plurality of air passages (20). A fixed plenum (22) includes a slot (24) for the passage of air from that plenum into the air passages of that mold half. Pivot means (26) are provided for pivoting the mold halves from a first position where the mold defines an article cavity, to a second position away from the article to be molded. In this second position, one end of the air passages are in registry with the slot to effect the transport of air from the plenum and through the air passages.
Abstract:
Apparatus and method are provided for cooling the neck ring (26) and the parison mold (22) of the parison molding portion (20) of an individual section (162) of a glassware molding machine (164) by the use of fan air which is provided to the section box (166) by a motorized fan (300+302) and a fan box (298). The apparatus includes a damper valve (64) with a rotary actuator (82) for selectively controlling flow of fan air to the neck ring (26) and the parison mold (22); and the apparatus includes an isolation sleeve (146) and a temperature controlled valve (170) for utilizing the thermal energy of air discharged from cooling passages (122 and 124) in the parison plunger (116), and for automatically controlling the temperature of the fan air in the section box (166) regardless of ambient air temperatures.
Abstract:
A parison mold portion (20) of a glassware forming machine, of the type having a parison mold (22) and a parison plunger (240), is provided with means for cooling the parison plunger (240). The means for cooling the parison plunger (240) includes a central cooling passage (258) that communicates with an end surface (246) and that extends longitudinally toward a nose (254), and a plurality of umbrella passages (162) that communicate with the end surface (246) radially outward from the central cooling passage (258), that are circumferentially spaced, and that intercept the central cooling passage (258) proximal to the nose (254). A tube (264) is inserted into the central cooling passage (258), is longitudinally adjustable, and is effective to adjustably determine the longitudinal position wherein the umbrella passages (162) communicate with the central cooling passage; whereby cooling of portions of the parison plunger (240) proximal to the nose (254) versus portions distal from the nose (254), is selectively controlled.
Abstract:
Each neck tool half is mounted on a neck tool holder and together they are movable from the illustrated initial position in a parison mold station to a finishing mold station. On each neck tool holder is secured a movable part of a distribution device for cooling air. A stationary part of the distribution device transfers cooling air from a stationary supply device having a valve. Between the stationary and movable parts there is a jointing gap which is inclined to the vertical. The cooling air is blown through nozzle apertures against the outside of the neck tool half.
Abstract:
An apparatus for cooling tools of glass-forming machines, especially plungers and molds, in which the tool surface to be cooled is substantially covered by cover means in contact with the tool surface and in which a cooling liquid is applied to the cover means so that the liquid will evaporate and cool the cover means, as well as the tool surface in contact therewith.
Abstract:
A mold cavity defining structure includes inner wall means defining a glassware forming surface which is adapted to contact the molten glass and to thereby remove heat from the molten glass. This inner wall means also defines a second surface, spaced outwardly from the first, and which can be cooled so that heat is adapted to be conducted outwardly from the first surface toward the second surface. The mold cavity defining structure further includes outer wall means spaced from the inner wall means and defining a third surface which is spaced outwardly from the second surface of the inner wall means to define an internal chamber of generally annular shape therebetween. This chamber is filled with a porous metal filler material, comprising generally spherical particles which are brazed or sintered to one another and also to the second surface of the inner wall means, but which brazed particles also define interstices therebetween to achieve a high degree of porosity in the filler material. Means is provided for passing a coolant such as air through the porous metal filler material, and preferably said coolant is caused to pass through the chamber in a radial direction, from adjacent the outer boundary of the filler material, to the inner boundary thereof. The filler material preferably comprises generally spherical Monel beads having a diameter of approximately 3/32nds of an inch, giving the brazed filler material a density of approximately 65% that of the bead material.
Abstract:
Method and apparatus for cooling tools, especially plungers and molds for glass forming machines, in which a cooling liquid is sprayed in atomized form through one or a plurality of nozzles against the tool surface to be cooled so that the liquid will evaporate upon contact with the surface to cool the latter. Spraying of liquid through the individual nozzles may be controlled either by the operator or automatically through sensing means sensing the temperature of the tool to be cooled.