Method and apparatus for molding articles containing inserts
阅读：280发布：2023-08-02
专利汇可以提供Method and apparatus for molding articles containing inserts专利检索，专利查询，专利分析的服务。并且A method and apparatus for mass-manufacturing elongated hollow plastic objects, such as covers for electronic thermometer probes, and ball point pens, having inserts at the ends thereof. The inserts are automatically loaded, by vibrating the same into pockets and then lifting them out of the pockets into suction tubes which pass through a horizontal transfer plate into nests in a vertical transfer plate. Vacuum is employed to maintain the inserts in the nests during movement of the vertical transfer plate to positions adjacent the distal ends of hollow core pins through which air is sucked. The vacuum in the vertical transfer plate is then converted to pressure to cause the inserts to fly across the air gaps to the core pin ends, following which the inserts are maintained on such ends by suction. The mold is then closed to cause the inserts to engage spring-biased plungers, following which the plastic is injected.，下面是Method and apparatus for molding articles containing inserts专利的具体信息内容。
1. A method of feeding objects, which comprises: providing a plurality of pockets which are aligned in a row, aligning a multiplicity of objects in a second row parallel to said first-mentioned row and laterally offset therefrom, providing a plurality of lateral pocket openings through which said objects may pass from said second row into said pockets and in directions transverse to both of said rows, providing a plurality of passages having end portions respectively registered with said pockets and spaced above said pockets, applying sufficient suction to said passages that said objects will be sucked upwardly therethrough after said objects are lifted out of said pockets into said passage end portions, said suction being insufficient to actuate said objects upwardly in the absence of said lifting, effecting vibratory feeding of said objects longitudinally of said second row and in such manner that those of said objects registered with said pocket openings will pass laterally therethrough into said pockets unless prevented therefrom, and lifting said objects into said passage ends for suction-passage therethrough.
1. A method of feeding objects, which comprises: providing a plurality of pockets which are aligned in a row, aligning a multiplicity of objects in a second row parallel to said first-mentioned row and laterally offset therefrom, providing a plurality of lateral pocket openings through which said objects may pass from said second row into said pockets and in directions transverse to both of said rows, providing a plurality of passages having end portions respectively registered with said pockets and spaced above said pockets, applying sufficient suction to said passages that said objects will be sucked upwardly therethrough after said objects are lifted out of said pockets into said passage end portions, said suction being insufficient to actuate said objects upwardly in the absence of said lifting, effecting vibratory feeding of said objects longitudinally of said second row and in such manner that those of said objects registered with said pocket openings will pass laterally therethrough into said pockets unless prevented therefrom, and lifting said objects into said passage ends for suction-passage therethrough.
2. The invention as claimed in claim 1, in which said lifting step is performed by combination gate and lifting means which prevent movement of additional ones of said objects completely into said pockets until completion of said lifting step, whereby said objects in said second row continue to move longitudinally thereof while said combination gate and lifting means are disposed in said pockets.
3. The invention as claimed in claim 1, in which said objects are inverted and generally cup-shaped small objects, and in which said step of lifting said objects into said passage ends is effected by passing pin elements upwardly into the open bottoms of said objects and thereby lifting said objects up into said passage end portions, whereby said objects may not be lifted if they are in upright condition instead of inverted condition.
4. Apparatus for effecting automatic supplying of objects, which comprises: a support element having a generally horizontal upper supporting surface along which said objects are adapted to be vibrated, a comb element provided on said support element above said surface, said comb element having a plurality of pockets spaced longitudinally therealong, each of said pockets being sized to receive only one of said objects, said comb element also having teeth separating said pockets from each other, the outer ends of said teeth providing abutments for said objects, vibratory means to effect slow feeding of said objects in a row along said abutments longitudinally of said comb element, said vibratory means also causing some of said objects to pass laterally from said row into those of said pockets which are unoccupied, a plurality of conduit means having lower end portions registered with said pockets and spaced thereabove, means to lift said objects out of said pockets and into said lower end portions of said conduit means, and means to shift said objects through said conduit means to a desired destination.
5. The invention as claimed in claim 4, in which said objects are generally cup-shaped and are inverted, and in which said lifting means comprises: a plurality of combination lifting and gate pins, one of said pins being registered with each of said pockets, each of said pins being movably mounted below said supporting surface for shifting upwardly through an opening in said support element into and through a pocket, and means to shift said pins upwardly through said openings in said support element whereby said pins enter through the open bottoms of those of said objects which are in said pockets, said shifting means for said pins effecting upward movement thereof through distances sufficient to lift said objects to said lower end portions of said conduit means.
6. The invention as claimed in claim 5, in which said upper supporting surface is inclined in the direction of slow feeding of said objects and is also inclined laterally of said direction whereby to cause said objects to pass into said pockets.
7. The invention as claimed in claim 5, in which said lower end portions of said conduit means are spaced a substantial distance above said upper supporting surface, whereby to prevent any interference with movement of said objects until said combination gate and lifting pins are shifted upwardly to thereby lift said objects.
8. The invention as claimed in claim 5, in which said teeth of said comb element are so shaped that objects which move partially into said pockets while said pins are in upwardly shifted position may move out of said pockets and continue vibratory feeding generally longitudinally of said comb element.
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