초록 ▼

Appratus for automatically removing stuck and down ware from an automatic glassware forming machine conveyor produces a first signal for each item of normal ware, stuck ware and down ware which is conveyed past an inspection location. Each of the first signals has a duration corresponding to the tim

Appratus for automatically removing stuck and down ware from an automatic glassware forming machine conveyor produces a first signal for each item of normal ware, stuck ware and down ware which is conveyed past an inspection location. Each of the first signals has a duration corresponding to the time required for passage of the corresponding item past the inspection location. In order to prevent the generation of spurious first signals, two spaced radiant energy beams are sensed which are directed transversely across the transport path of the wares and which are in coplanar alignment perpendicular to the transport path of the wares. A first one of the beams is aligned with the bases of upright wares and the other of the beams is aligned above the first beam. The first signal is produced if either of the beams is interrupted. The apparatus also produces a second signal simultaneously with the production of each of the first signals, the second signals having a predetermined duration corresponding to the time required for a normal upright and spaced item of ware to be conveyed past the inspection location. The generation of a reject signal during the duration of each of the second signals is inhibited and a reject signal is generated if a first signal is present after the termination of the corresponding second signal, which actuates a signal responsive automatic ware removal mechanism.

대표청구항 ▼

In combination, an automatic glassware forming machine comprising a conveyor on which a single line of normally upright, still-plastic wares having a thickened base and a greater length than diameter are transported for further processing in spaced relationship with respect to each other, and automa

In combination, an automatic glassware forming machine comprising a conveyor on which a single line of normally upright, still-plastic wares having a thickened base and a greater length than diameter are transported for further processing in spaced relationship with respect to each other, and automatic stuck and down ware rejection apparatus comprising: detecting means for sensing the passage of normal ware, stuck ware and down ware past an inspection location comprising: source means for producing first and second spaced radiant energy beams, said radiant energy beams being directed transversely across the transport path of the wares so as to be interrupted by the passage of normal, stuck and down ware, and being in coplanar alignment perpendicular to the transport path of the wares, and said first beam being disposed at an elevation in alignment with the bases of upright wares and said second beam being disposed at an elevation above said first beam; and sensor means for sensing said radiant energy beams and producing a first signal for each item of sensed normal ware, stuck ware or down ware as long as either of said beams is interrupted by the sensed ware; means responsive to each of said first signals for producing a second signal having a predetermined duration corresponding to the time required for a normal upright and spaced ware to be conveyed past said inspection location; means responsive to each of said first and second signals for producing a reject signal when said first signal exceeds said second signal in duration, which corresponds to the detection of stuck ware or down ware; and removal means responsive to said reject signal for removing the stuck ware or down ware which generated said reject signal.