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1. WO1979000006 - MACHINE DE FABRICATION DE BOITES EN CARTON

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

I claim:
1. An apparatus for erecting cartons comprising a forming well, a plurality of forming heads each of a configuration cooperative with said forming well for forming a carton blank into an erected carton during the passage thereof through said forming well by one of said forming heads, and carrier means mounting said forming heads in spaced relation for continuous sequential movement through said forming well .
2. The apparatus of claim 1 wherein said forming well is peripherally discontinuous and provides at least one passageway for said carrier means.
3. The .apparatus of claim 1 wherein said carrier means includes at least one endless conveyor and means mounting said forming heads thereon.
4. The apparatus of claim 1 together with sealing
-means disposed along the path of movement of said forming heads downstream of said forming well for sealing cartons carried by said forming heads to maintain their erected state.
5. The apparatus of claim 1 together with stripper means for removing erected cartons from said forming heads.
6. The apparatus of claim 8 together with stripper means for removing erected cartons from said forming heads, said stripper means including stripper elements movable together with said forming heads downstream of said forming well and at a greater speed than said forming heads .
7. The apparatus of claim 1 together with stripper means for removing erected cartons from said forming heads, said stripper means including stripper elements projecting into the path of said forming heads, and said forming heads having passages therethrough for receiving and passing said stripper elements.
8. The apparatus of claim 5 wherein said stripper means include resilient clamping means for gripping and temporarily holding erected cartons stripped from said forming blocks.
9. The apparatus of claim 4 wherein said sealing means are in the form of heated pads movable in unison with said forming heads.

10. A method of continuously erecting carton blanks comprising the steps of recirculating forming heads with the forming heads passing in sequence through a forming well, positioning a carton blank between each forming head and the forming well, and using the moving forming heads to force the carton blanks through the forming well on a continuous sequential basis.
11. A method of stripping erected cartons carried b continuously moving forming heads comprising the steps of for ing passages through opposite edges of the forming blocks, providing stripper elements movable through the passages, and moving the stripper elements in the same direction as the forming heads but at a greater rate with the stripper element passing through the passages and stripping erected cartons from the forming heads.