In an assembly station a carcass sleeve and an outer sleeve manufactured along respective building lines are mutually coupled. Integrated into the assembly station are engagement devices that can be alternatively coupled to an auxiliary drum carrying an outer sleeve and to a building drum carrying a
In an assembly station a carcass sleeve and an outer sleeve manufactured along respective building lines are mutually coupled. Integrated into the assembly station are engagement devices that can be alternatively coupled to an auxiliary drum carrying an outer sleeve and to a building drum carrying a carcass sleeve. A grip unit picks up the outer sleeve from the auxiliary drum associated with the engagement devices in order to position it to a location radially external to the carcass sleeve carried by the building drum associated with the engagement devices in place of the auxiliary drum. Shaping devices that can be operatively coupled to the building drum cause radial expansion of the carcass sleeve so as to enable the latter to be coupled to the outer sleeve retained by the grip unit.
대표청구항▼
1. A process for assembling tyres, comprising: forming a carcass sleeve on a building drum at a carcass sleeve building line, said carcass sleeve comprising a carcass ply engaged to a pair of annular anchoring structures;forming an outer sleeve on an auxiliary drum, said outer sleeve comprising at l
1. A process for assembling tyres, comprising: forming a carcass sleeve on a building drum at a carcass sleeve building line, said carcass sleeve comprising a carcass ply engaged to a pair of annular anchoring structures;forming an outer sleeve on an auxiliary drum, said outer sleeve comprising at least one belt layer and a tread band;using a first transfer unit, in the form of a first robotic arm with at least six movement axes, on the auxiliary drum for moving and engaging the auxiliary drum carrying the outer sleeve formed thereon to an assembly station;picking up the outer sleeve from the auxiliary drum while the auxiliary drum is held by the first transfer unit at one axial end of the auxiliary drum and a mandrel of the assembly station at the other axial end of the auxiliary drum;using a second transfer unit, in the form of a second robotic arm having at least six movement axes, for moving the building drum, carrying the carcass sleeve thereon, to the assembly station;engaging the building drum into contact with the assembly station;positioning the outer sleeve at a radially external position to the carcass sleeve formed on the building drum while the building drum is held in the assembly station by an engagement device at one axial end of the building drum and the mandrel at the other axial end of the building drum;operatively coupling shaping devices carried by the assembly station to the building drum, including engaging a pair of retaining members into contact with the building drum; and thenshaping the carcass sleeve into a toroidal configuration to enable coupling thereof to said outer sleeve;wherein after engaging the building drum to the assembly station and before positioning the outer sleeve at a radially external position to the carcass sleeve, disengaging the transfer unit from contact with the building drum. 2. The process as claimed in claim 1, wherein engaging the auxiliary drum on the assembly station takes place through translation of the auxiliary drum in a radial direction relative to a rotation axis thereof, so as to position the auxiliary drum in axial alignment with a grip unit carried by the assembly station and designed to pick up the outer sleeve from the auxiliary drum. 3. The process as claimed in claim 2, wherein picking up of the outer sleeve from the auxiliary drum comprises: translating the grip unit in parallel with the rotation axis of the auxiliary drum until positioning the grip unit around the outer sleeve carded by the auxiliary drum;engaging the outer sleeve with the grip unit; andaxially translating the auxiliary drum to release the auxiliary drum from the outer sleeve. 4. The process as claimed in claim 2, further comprising moving the auxiliary drum radially away from the condition of axial alignment with the grip unit, after picking up of the outer sleeve from the auxiliary drum and before engaging the building drum in the assembly station. 5. The process as claimed in claim 1, wherein engaging the building drum on the assembly station takes place through translation of the building drum in a radial direction relative to a rotation axis thereof, so as to position the building drum in axial alignment with a grip unit. 6. The process as claimed in claim 2, wherein positioning the outer sleeve at a location radially external to the carcass sleeve takes place through translation of the grip unit in parallel with a rotation axis of the building drum until the outer sleeve is positioned around the carcass sleeve. 7. The process as claimed in claim 1, wherein each retaining member is axially approachable with a respective half of the building drum. 8. The process as claimed in claim 7, wherein each retaining member acts against a respective circumferential abutment edge carried by the building drum. 9. The process as claimed in claim 1, comprising locking the annular anchoring structures relative to the building drum during the shaping of the carcass sleeve. 10. The process as claimed in claim 9, wherein concurrently with locking the annular anchoring structures, a hermetic seal of the carcass sleeve is carried out at the annular anchoring structures. 11. The process as claimed in claim 7, wherein the retaining members are each brought into thrust relationship with a respective one of the annular anchoring structures. 12. The process as claimed in claim 7, comprising locking said carcass ply relative to the annular anchoring structures concurrently with engaging the pair of retaining members into contact with the building drum. 13. The process as claimed in claim 8, further comprising fastening a respective flanged element of each retaining member relative to the building drum and pushing a respective sealing ring of each retaining member against a respective one of the circumferential abutment edges. 14. The process as claimed in claim 1, wherein, after shaping the carcass sleeve: disengaging a grip unit from the coupled outer sleeve and carcass sleeve;radially contracting the building drum; andreleasing the tyre being processed from the building drum. 15. The process as claimed in claim 1, wherein after shaping the carcass sleeve, rolling the coupled outer sleeve and carcass sleeve carried by the building drum with rolling devices, 16. The process as claimed in claim 1, wherein at least part of said carcass ply is made by laying of elementary semifinished products on the building drum. 17. The process as claimed in claim 1, wherein said at least one belt layer is made by laying of elementary semifinished products on the auxiliary drum. 18. The process as claimed in claim 1, wherein the outer sleeve is formed at an outer sleeve building line.
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이 특허에 인용된 특허 (8)
Girard,Jean Claude; Delgado,Andres Ignacio; Currie,William Dudley, Apparatus for tread belt assembly.
Huisman Henk,NLX ; De Vries Wubbo Pieter,NLX ; De Graaf Martin,NLX ; Regterschot Martinus,NLX, Assembly of devices for building a green tire for vehicles.
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