Method and apparatus for fabricating nestable thermoplastic containers
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0772085
(1985-09-03)
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발명자
/ 주소 |
- Kontz Robert F. (Toledo OH)
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출원인 / 주소 |
- Owens-Illinois, Inc. (Toledo OH 02)
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인용정보 |
피인용 횟수 :
4 인용 특허 :
2 |
초록
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Sleeve fabricating apparatus for fabricating cylindrical sleeves from rectangular blanks of a heat-shrinkable thermoplastic material and for transferring the sleeves, in succession, to frustoconical mandrels of a cup-forming machine. The sleeve-fabricating apparatus has a plurality of cylindrical ma
Sleeve fabricating apparatus for fabricating cylindrical sleeves from rectangular blanks of a heat-shrinkable thermoplastic material and for transferring the sleeves, in succession, to frustoconical mandrels of a cup-forming machine. The sleeve-fabricating apparatus has a plurality of cylindrical mandrels that are rotatably affixed to a rotary turret. The sleeves are fabricated from rectangular blanks that are cut, in succession, from a web of indefinite length as the web is being unwound from a coil at an unwind stand. Each blank is longer than the circumference of the cylindrical mandrel to which it is applied, leaving ends of the blank which overlap, and the overlapped ends are joined to one another by heat-sealing. Cups are formed by the cup-forming machine, each cup being formed from one of such sleeves and a disc. The sleeve fabricating apparatus also includes a disc forming mechanism for forming discs and applying the discs, in succession, to the cylindrical mandrels. The rotary turret rotates the cylindrical mandrels, in succession, past a transfer station, where a cylindrical mandrel is approximately aligned with a frustoconical mandrel of the cup-forming machine over a finite, approximately straight lineal path, and a sleeve and a disc are transferred in unison by a transfer mechanism from a cylindrical mandrel of the sleeve fabricating apparatus to a frustoconical mandrel of the cup-forming machine, the sleeve transferred over the small end of the frustoconical mandrel to permit the transfer to take place over a finite period of time.
대표청구항
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A method of fabricating a nestable container comprising the steps of: (i) providing a first rotary turret, said first rotary turret having a vertically extending central axis and being rotatable in a first horizontal plane about said vertically extending central axis; (ii) providing a plurality of c
A method of fabricating a nestable container comprising the steps of: (i) providing a first rotary turret, said first rotary turret having a vertically extending central axis and being rotatable in a first horizontal plane about said vertically extending central axis; (ii) providing a plurality of cylindrical winding mandrels on said first rotary turret, each of said plurality of cylindrical winding mandrels having a substantially equal outside diameter and a vertically extending mandrel central axis and being rotatable about said vertically extending mandrel central axis, the vertically extending mandrel central axes of said cylindrical winding mandrels being equidistant from said vertically extending central axis of said first rotary turret; (iii) providing a winding station adjacent a first of said plurality of cylindrical winding mandrels; (iv) providing a seam-sealing station adjacent a second of said plurality of cylindrical winding mandrels; (v) providing a second rotary turret, said second rotary turret having a second vertically extending central axis and being rotatable in a second horizontal plane about said second vertically extending central axis, said second horizontal plane being vertically displaced from said first horizontal plane; (vi) providing a plurality of generally frustoconical container forming mandrels on said second rotary turret, each of said plurality of generally frustoconical container forming mandrels having a vertically extending container forming mandrel central axis, the vertically extending container forming mandrel central axes of said plurality of generally frustoconical container forming mandrels being equidistant from said second vertically extending central axis of said second rotary turret, each of said plurality of generally frustoconical container forming mandrels having a generally circular small end and a generally circular large end, said generally circular small end and said generally circular large end being vertically displaced from each other, said generally circular small end being closer to said first horizontal plane than said generally circular large end and having a diameter that is substantially smaller than said outside diameter of each of said cylindrical winding mandrels; (vii) positioning said first rotary turret and said second rotary turret so that a third of said plurality of cylindrical winding mandrels has its vertically extending mandrel central axis nearly aligned with the vertically extending container forming mandrel central axis of one of said plurality of generally frustoconical container forming mandrels at a transfer station; (viii) winding a rectangular blank of a semi-rigid heat-shrinkable thermoplastic material about said first of said plurality of cylindrical winding mandrels at a winding station, said winding station being adjacent said first of said plurality of cylindrical winding mandrels, the lineal dimension of said blank, in the horizontal direction, being slightly greater than the circumference of said first of said winding mandrels, so that said blank is wound into a wound cylinder with overlapping ends; (ix) rotating said first rotary turret through a first portion of a circular arc to advance said first of said plurality of cylindrical winding mandrels to said seam-sealing station; (x) sealing said overlapping ends of said wound cylinder to one another at said seam-sealing station; (xi) rotating said first rotary turret through a second portion of said circular arc to advance said first of said cylindrical winding mandrels and said wound cylinder to said transfer station; (xii) rotating said second rotary turret through a second circular arc to present one of said plurality of generally frustoconical container forming mandrels at said transfer station, said second circular arc being aligned with said circular arc at a first point and at a second point, said second point being spaced from said first point along said circular arc so that said first of said plurality of cylindrical winding mandrels and said one of said plurality of generally frustoconical container forming mandrels travel nearly parallel to one another between said first point and said second point; (xiii) vertically transferring said wound cylinder from said first of said plurality of cylindrical winding mandrels to said one of said plurality of generally frustoconical container forming mandrels at said transfer station, said transferring step occurring over a finite period of time during which said vertically extending mandrel central axis and said vertically extending container forming mandrel central axis are approximately in vertical alignment; and (xiv) forming a nestable container from said transferred wound cylinder on said one of said plurality of generally frustoconical container forming mandrels.
이 특허에 인용된 특허 (2)
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Amberg ; Stephen W. ; Amberg ; Ralph G., Method and apparatus for fabricating thermoplastic containers.
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Amberg Stephen W. (Toledo OH) Doherty Thomas E. (Setauket NY), Method and apparatus for forming thermoplastic containers.
이 특허를 인용한 특허 (4)
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Beard,Donald G.; Brandt,Charles M.; De Angelo,Stephen P.; Frielich,Sean; Lynn,Stephen R.; Minton,John C.; Norberg,Robert P., Bottle.
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Beard,Donald G.; Brandt,Charles M.; De Angelo,Stephen P.; Frielich,Sean; Lynn,Stephen R.; Minton,John C.; Norberg,Robert P., Bottle.
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Beard,Donald G.; Brandt,Charles M.; De Angelo,Stephen P.; Frielich,Sean; Lynn,Stephen R.; Minton,John C.; Norberg,Robert P., Bottle.
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Beard,Donald G.; Brandt,Charles M.; De Angelo,Stephen P.; Frielich,Sean; Lynn,Stephen R.; Minton,John C.; Norberg,Robert P., Bottle.
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