Packaging method and apparatus
AssigneesOmori Machinery Co., Ltd., Mitsubishi Gas Chemical Company, Inc.
InventorsShozo Omori, Takeshi Sekiguchi
Life of this patent
Estimating the term…
Abstract
A packaging method includes the steps of supplying auxiliary bags, adding an adhesive layer to one of the surfaces of each auxiliary bag, feeding a continuous sheet-like wrapping material to a forming and filling assembly, attaching the auxiliary bags by the adhesive layer to the wrapping material during travel thereof, at an interval corresponding to a length required for forming each package and each at a portion thereof which becomes an inner surface of the package other than sealed portions thereof, forming the wrapping material into a tubular shape with the auxiliary bags inside, supplying articles into the tubular wrapping material and sealing the same to form the packages.
Claims20
A packaging method of forming packages, said method comprising the steps of:
- supplying auxiliary bags;
- adding an adhesive layer to one of the surfaces of each said auxiliary bag;
- feeding a continuous sheet-like thermoplastic wrapping material to a forming and filling means;
- attaching said auxiliary bags by said adhesive layer to said wrapping material, prior to said wrapping material reaching said forming and filling means, at an interval corresponding to a length of said wrapping material required for forming each package, and each said auxiliary bag being attached to a portion of said wrapping material that becomes the inner surface of the respective package other than sealed portions thereof;
- said attaching step being performed by transferring each said auxiliary bag by a chute into a path of said wrapping material with said adhesive layer oriented toward said wrapping material and by attaching said auxiliary bags to said wrapping material by attaching means comprising a guide member for receiving said auxiliary bag from said chute and a support roller facing said guide member, said wrapping material being guided by said support roller to come into press-contact with said auxiliary bag;
- forming said wrapping material into a tubular shape with said auxiliary bags inside;
- supplying articles into said tubular shaped wrapping material;
- and
- sealing said tubular shaped wrapping material to thereby form the packages.
A packaging apparatus for forming packages, said apparatus comprising:
- means for providing individual auxiliary bags each having an adhesive layer on one of the surfaces thereof;
- means for feeding a continuous sheet-like thermoplastic wrapping material;
- means for attaching said auxiliary bags by said adhesive layer to said wrapping material at an interval corresponding to a length of said wrapping material required for forming each package and such that each said bag is attached to a portion of said wrapping material that becomes the inner surface of the respective package other than sealed portions thereof;
- said auxiliary bag providing means including a chute for transferring each said auxiliary bag to said attaching means with said adhesive layer oriented toward said wrapping material;
- said attaching means comprising a guide member for receiving each said auxiliary bag from said chute and a support roller facing said guide member, said wrapping material being guided by said support roller to come into press-contact with said auxiliary bag;
- and
- means for forming said wrapping material into a tubular shape with said auxiliary bags inside, for supplying articles into said tubular-shaped wrapping material and for sealing said tubular-shaped wrapping material to thereby form the packages.
Dependencies are inferred from the claim text.