A spout sealing method and apparatus using a spout insertion and temporary-sealing apparatus, a primary sealing apparatus, a secondary sealing apparatus and a cold-sealing apparatus that are installed in a row; and transfer apparatuses being installed between these sealing apparatuses. Each apparatu
A spout sealing method and apparatus using a spout insertion and temporary-sealing apparatus, a primary sealing apparatus, a secondary sealing apparatus and a cold-sealing apparatus that are installed in a row; and transfer apparatuses being installed between these sealing apparatuses. Each apparatus has a continuously rotating rotor. A plurality of spout holding members which hold and convey spouts are disposed at equal intervals on the circumferences of the rotors, and spouts are continuously transferred between the spout holding members of adjacent rotors. In the spout insertion and temporary-sealing apparatus, bags and spouts are supplied from different sources; and the bags are fitted over the spouts held by the spout holding members, and the bags and spouts are temporarily sealed by a temporary-sealing apparatus. Then, main sealing is performed by the primary sealing apparatus and secondary sealing apparatus, and the main sealing area is cooled by the cold-sealing apparatus.
대표청구항▼
1. A spout sealing method comprising the steps of: holding spouts by means of a plurality of spout holding members tat are disposed on a circumference of a continuously rotating rotor of a spout insertion and temporary-sealing apparatus, fitting bags over said spouts while rotationally conveyin
1. A spout sealing method comprising the steps of: holding spouts by means of a plurality of spout holding members tat are disposed on a circumference of a continuously rotating rotor of a spout insertion and temporary-sealing apparatus, fitting bags over said spouts while rotationally conveying said spouts, temporarily sealing sealing-portions of said bags and spouts by linear sealing or point sealing, continuously transferring said bags to which said spouts are attached and said temporary sealing has been applied from said spout insertion and temporary-sealing apparatus to a spout main-sealing apparatus, holding said spouts of said bags with attached spouts by means of a plurality of spout holding members disposed on a circumference of a continuously rotating rotor of said spout main-sealing apparatus, and performing a main sealing operation to said bags and spouts while rotationally conveying said bags with attached spouts. 2. The spout sealing method according to claim 1, wherein said main-sealing comprises a primary sealing and a secondary sealing which are performed after said temporary sealing and comprise the steps of: continuously transferring said bags with attached spouts that have been subjected to said temporary sealing from said spout insertion and temporary-sealing apparatus to a primary sealing apparatus, holding spouts of said bags with attached spouts by means of a plurality of spout holding members disposed on a circumference of a continuously rotating rotor of said primary sealing apparatus, performing said primary sealing while rotationally conveying said bags with attached spouts, continuously transferring said bags with attached spouts from said primary sealing apparatus to a secondary sealing apparatus, holding spouts of said bags with attached spouts by means of a plurality of spout holding members disposed on a circumference of a continuously rotating rotor of said secondary sealing apparatus, and performing said secondary sealing to said bags and spouts while rotationally conveying said bags with attached spouts. 3. The spout sealing method according to claim 1, wherein a cold-sealing is performed after said main sealing byte steps of: continuously transferring said bags with attached spouts that have bean subjected to said main sealing from said main-sealing apparatus to a cold-sealing apparatus, holding said spouts of said bags wit attached spouts by means of a plurality of spout holding members disposed on a circumference of a continuously rotating rotor of said cold-sealing apparatus, and performing a cold sealing operation to said bags with attached spouts while rotationally conveying said bags with attached spouts. 4. The spout sealing method according to claim 1, wherein said spouts are formed on sealing portions thereof with one or more projecting strips oriented in a lateral direction, and said sealing portions and said bags are temporarily sealed with said projecting strips being prevented from said temporary sealing.5. A spout sealing apparatus comprising: a spout insertion and temporary-sealing apparatus in which: a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor,insertion means that fit bags over said spouts that are held by said spout holding members are disposed so as to correspond to said respective spout holding members, anda temporary-sealing apparatus is disposed near said rotor so as to temporarily seal said bags and said spouts held by said spout holding members; a spout main-sealing apparatus in which: a plurality of spout holding members tat hold spouts are disposed on a circumference of a continuously rotating rotor, andmain-sealing means that perform a main sealing of said bags with attached spouts that are held by said spout holding members are disposed so as to correspond to respective said spout holding members, and a rotating transfer apparatus in which a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor, and wherein said rotating transfer apparatus is disposed between said spout insertion and temporary-sealing apparatus and the spout main-sealing apparatus, so that said rotating transfer apparatus continuously transfers bags with attached spouts from said spout insertion and temporary-sealing apparatus to said spout main-sealing apparatus.6. The spout sealing apparatus according to claim 5, wherein: said the spout main-sealing apparatus comprises a primary sealing apparatus and a secondary sealing apparatus, in both of which: a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor, andmain-sealing means that perform said main sealing of said bags with attached spouts held by said spout holding members arc disposed so as to correspond to said respective spout holding members; and a rotating transfer apparatus in which a plurality of spout holding members that hold spouts are disposed on a circumference of a constantly rotating rotor is disposed between said primary sealing apparatus and secondary sealing apparatus, so that said rotating transfer apparatus continuously transfers bags with attached spouts from said primary sealing apparatus to said secondary sealing. 7. The spout sealing apparatus according to claim 5, wherein: a spout cold-sealing apparatus is disposed on a downstream side of said spout main-sealing apparatus, and in spout cold-sealing apparatus: a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor, andcold-sealing means that cold-seal said bags with attached spouts that arc held by said spout holding members are disposed so as to correspond to respective said spout holding members, and a rotating transfer apparatus in which a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor is disposed between said spout main-sealing apparatus and said spout cold-sealing apparatus, so that said rotating transfer apparatus continuously transfers bags with attached spouts from said spout main-sealing apparatus to said spout cold-sealing apparatus. 8. The spout sealing apparatus according to claim 7, further comprising a rotating transfer apparatus in which a plurality of spout holding members that hold spouts are disposed on a circumference of a continuously rotating rotor, said rotating transfer apparatus being disposed on a downstream side of said spout cold-sealing apparatus, so that said rotating transfer apparatus transfers bags with attached spouts from said spout cold-sealing apparatus to an apparatus of next process.9. The spout sealing apparatus according to claim 5, wherein: said spout holding members are fork-shaped members which have clamping grooves that are oriented outward in a radial direction so as to hold groove portions located between flanges of said spouts, and a defective bag discharge device is provided for said rotating transfer apparatus, said defective bag discharge device is comprised of: a discharge member which contacts spouts of defective bags held by said spout holding members and pushes said spouts outward in a radial direction, andan advancing-and-retracting mechanism which advances and retracts said discharge member between a retracted position and a contact position.10. The spout sealing apparatus according to any one of claims 5 through9, wherein: said temporary-sealing apparatus is equipped with a heated rotating sealing body which is disposed in close proximity to an outer circumferential side of a rotor and rotates at a urine speed as spouts held by said spout holding members, andadvancing-and-retracting back-up members which advance and retract in a radial direction and are installed on an inner circumferential side of a rotor so as to correspond to respective said spout holding members, and whereinsaid rotating sealing body contacts sealing portions of said spouts with bags fitted thereon, andsaid buck-up members advance outward in a radial direction upon arrival at a temporary sealing position and contact insides of said sealing portions of said spouts with said bags fitted thereon, thus supporting said bags from said insides.11. The spout sealing apparatus according to any one of claims 5 through8, wherein: said spout holding members are fork-shaped members which have clamping grooves that are oriented outward in a radial direction so as to hold groove portions located between flanges of said spouts, and tapered surfaces that open outward are formed in a vicinity of an entry point of said clamping groove. 12. The spout sealing apparatus according to claim 11, wherein: a guide member which transfers said bags with attached spouts from spout holding members disposed on a rotor located on an upstream side to spout holding members disposed on a rotor located on a downstream side is disposed between adjacent rotors, said guide member is provided with a downward-facing groove which is continuously curved from a conveying track of centers of spout holding positions of spout holding members disposed on a rotor located on an upstream side to a conveying track of centers of said spout holding positions of spout holding members disposed on a rotor located on a downstream side, and said guide member inserts head portions of said spouts into said groove and guides along said groove. 13. The spout sealing apparatus according to any one of claims 5 through9 wherein: said temporary-sealing apparatus is equipped with a heated sealing body which is disposed in close proximity to an outer circumferential side of a rotor and follows for a specified distance a rotation of said spouts held by spout holding members, and said sealing body repeatedly advances and contacts said sealing portions of said spouts with said bags fitted thereon that are held by said spout holding members, follows a rotation of said bags for a specified distance, and then withdraws and returns to its original position. 14. The spout sealing apparatus according to claim 11, wherein: said temporary-sealing apparatus is equipped with a heated rotating sealing body which is disposed in close proximity to an outer circumferential side of a rotor and rotates at a same speed as spouts held by said spout holding members, andadvancing-and-retracting back-up members which advance and retract in a radial direction and are installed on an inner circumferential side of a rotor so as to correspond to respective said spout holding members, and whereinsaid rotating sealing body contacts sealing portions of said spouts with bags fitted thereon, andsaid back-up members advance outward in a radial direction upon arrival at a temporary sealing position and contact insides of said sealing portions of said spouts with said bags fitted thereon, thus supporting said bags from said insides.15. The spout sealing apparatus according to claim 12, wherein: said temporary-sealing apparatus is equipped with a heated rotating sealing body which is disposed in close proximity to an outer circumferential side of a rotor and rotates at a same speed as spouts held by said spout holding members, andadvancing-and-retracting back-up members which advance and refract in a radial direction and are installed on an inner circumferential side of a rotor so as to correspond to respective said spout holding members, and whereinsaid rotating sealing body contacts sealing portions of said spouts with bags fitted thereon, andsaid back-up members advance outward in a radial direction upon arrival at a temporary sealing position and contact insides of said sealing portions of said spouts with said bags fitted thereon, thus supporting said bags from said insides.16. The spout sealing apparatus according to claim 11, wherein: said temporary-sealing apparatus is e quipped with a heated sealing body which is disposed in close proximity to an outer circumferential side of a rotor and follows for a specified distance a rotation of said spouts held by spout holding members, and said sealing body repeatedly advances and contacts said sealing portions of said spouts with said bags fitted thereon that are held by said spout holding members, follows a rotation of said bags for a specified distance, and ten withdraws and returns to its original position. 17. The spout sealing apparatus according to claim 8, wherein: said temporary-sealing apparatus is equipped with a heated sealing body which is disposed in close proximity to an outer circumferential side of a rotor and follows for a specified distance a rotation of said spouts held by spout holding member, and said sealing body repeatedly advances and contacts said sealing portions of said spouts with said bags fitted thereon that are held by said spout holding members, follows a rotation of said bags for a specified distance, and then withdraws and returns to its original position.
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