Patent GB-1027640-A (GB)
Title: Improvements relating to glassware blowing machines
IPC: C03B9/193
Filed: 1963-08-07
Abstract: A rotary press-and-blow glassware machine comprises a sectioned neck-ring mould, means for opening and closing the sections, a finishing mould co-operating with the neck-ring mould, the said finishing mould being composed of sections which can be opened and closed by means independent of the neck-ring mould, a parison mould with means for shifting the parison mould into and out of co-operative relation with the neck-ring mould, a plunger to form a parison, the plunger being positionable at will over, into and out of the neck-ring mould and parison mould while they are in co-operative relation, a carrier for the neck-ring mould and means for indexing the carrier in a rotary manner from co-operation with the parison mould to co-operation with the finishing mould, whereby upon the closing of the finishing mould the parison is blown out to form a finished article which is still suspended from the neck-ring mould. A machine frame 1 (Fig. 3, not shown) includes a rotary column 3 having mounted upon it a turret 10 which has three openings spaced 120 degrees apart and filled by the support rings of three sets of separable neck-ring moulds of the type fully described in Specification 1,027,639.  The column 3 has a pinion 4 which by engagement alternately with racks 5 and 6 rotates said column in step-by-step fashion.  The neck-rings at the three positions co-operate with a parison mould 40, a finishing mould 45, and a dead plate 95 (Fig. 4, not shown).  At the first position the parison mould 40 is moved upwardly by a fluid cylinder 41 into engagement with a neck-ring, a gob guide funnel 51 mounted on a bracket also carrying a pressing plunger 53 is brought into alignment with the mould by the action of a cylinder 54, which further brings the plunger into axial alignment with the mould when the charge has been delivered.  The plunger is then lowered to press the charge by the action of a cylinder 55. After pressing, the plunger is retracted upwards out of the pressed parison P, the parison mould 40 is withdrawn downwardly, cooling water passed through the plunger 53 to cool it, cooling fluid blown on to the parison mould 40 through nozzles 42 to cool it, the parison P in the neck-ring mould rotated by engagement of a clutch through rods 74, 74a, and as the parison rotates a cylinder 61 advances an arcuate burner 60 to surround said parison.  A movable puff head 70 is then brought into engagement with the neck-ring mould to blow out the parison a little. The turret 10 is then indexed through 120 degrees to bring this neck-ring mould and parison to the finishing mould station.  The two halves of the finishing mould 45 were closed about the suspended parison P by means of a can linkage 46.  A blowing head 80 (Fig. 8, not shown) of the type described in Specification 958,480 is brought down into contact with the neck-ring and blowing air directed into the parison to blow it out into the form of the finished article.  After blowing, the head 80 is withdrawn upwardly and simultaneously a tube 85 within the head 80 is lowered into the blown out article and cooling air introduced therethrough to cool said article.  The tube 85 is then retracted upwardly, and the mould halves 45 opened to release the article, which is then advanced still within the neck-ring to the take-out station.  Nozzles 49 then direct cooling water on to the interior surfaces of the mould 45.  At the take-out station a dead-plate 95 is moved upwardly to just below the suspended article by a cylinder 96, the neck-ring mould halves 11, 12 are opened by the downward action of a member 56 action on bell-crank levers 27-30 at the same time as the clutch C is disengaged, Fig. 6 (not shown).  The plate 95 is perforated to allow cooling air to be blown through on to the base of the article.  A wiper arm 97 associated with the dead-plate 95, and actuated by a cylinder 98 shifts the finished article from the dead-plate on to some suitable conveyer means. Whilst one neck-ring is in operation at any one station so are the remaining two neck-rings at the remaining stations.  The whole operation is controlled by any conventional cam timer index system operating a series of magnetic spool valves which actuate each individual member to be moved.