摘要:
A plant for building tires includes a plurality of working locations, at least one first working location being associated with at least two loading/unloading locations, a proximal one and a distal one, each of said working locations and loading/unloading locations being associable with a forming drum. The production cycle is controlled by the method of: (i) loading a first forming drum into the at least one first working location; (ii) loading a second forming drum into the loading/unloading location; (iii) at the end of the working provided in the at least one first working location, unloading the first forming drum into the proximal loading/unloading location.
摘要:
An apparatus cuts and applies a component to a tire during a tire building process. The apparatus includes an application head rotatable about a vertical axis and fitted to an X-Y table such that the component is applied to a curved tire profile spinning on a drum of a tire building machine. The application head feeds the component vertically downward to a predetermined position coincident with an intersection of the vertical axis of the application head and a horizontal plane defined by a horizontal axis of rotation of the drum of the tire building machine.
摘要:
The triple-drum forming machine for the tire comprises a tire body drum, a belted layer drum and a forming drum, which are arranged on the same horizontal axis, wherein a portal frame for conveying a raw material is vertically arranged above the tire body drum, the belted layer drum and the forming drum; the transverse central line of the portal frame overlaps with the axial center lines of the tire body drum, the belted layer drum and the forming drum; the tops of the tire body transfer ring component and the belted layer transfer ring are respectively connected to the portal frame in a sliding manner; the portal frame comprises a horizontally arranged truss and a plurality of groups of vertically arranged upright posts; the horizontally arranged truss is connected with the vertically arranged upright posts.
摘要:
A plant, a method and a process for building tyres for vehicle wheels in a carcass structure building line includes: a) associating a pair of support rings with a forming drum in a work station for associating support rings; b) building at least one structural component of the tyre being processed on the forming drum provided with the pair of support rings in at least one work station of the carcass structure building line; c) removing the pair of support rings from the forming drum in a work station for removing support rings; d) transferring the pair of support rings dissociated from the forming drum to a temporary storage for support rings; and e) building at least one further structural component of the tyre being processed on the forming drum without the pair of support rings in a work station of the carcass structure building line.
摘要:
A method and a plant for manufacturing tyres for vehicle wheels. The method includes the steps of: a) building in a building station a substantially cylindrical carcass structure; b) manufacturing in a finishing station a substantially cylindrical sleeve including a tread band applied at a radially outer position with respect to a belt structure including at least one belt layer, step b) including the steps of: b1) assembling a first belt structure at a first working position on a first auxiliary drum of the finishing station; b2) applying at a second working position at least one first portion of the tread band at a radially outer position with respect to a second belt structure previously assembled on a second auxiliary drum of the finishing station; applying at at least one third working position at least one second portion of the tread band at a radially outer position with respect to a third belt structure assembled on at least one third auxiliary drum of the finishing station.
摘要:
A method for manufacturing tyres for vehicle wheels includes: a) building in a building station a substantially cylindrical carcass structure including at least one carcass ply operatively associated with annular anchoring structures axially spaced apart from each other; b) manufacturing in a finishing station a substantially cylindrical sleeve including a tread band applied at a radially outer position with respect to a belt structure including at least one belt layer including reinforcing cords; b1) assembling a first belt structure at a first working position on a first auxiliary drum of the finishing station; b2) applying a tread band at at least one second working position with respect to a second belt structure on at least one second auxiliary drum by laying down green elastomeric material; b3) positioning the first auxiliary drum supporting the first belt structure at the second working position; b4) positioning the second auxiliary drum supporting the substantially cylindrical sleeve at a picking position; and c) transferring the substantially cylindrical sleeve from the picking position a radially outer position with respect to a carcass structure built in the meantime in the building station. Steps b1) to b4) are repeated cyclically. Steps b1) and b2) and steps b3) and b4) are carried out at least in part simultaneously.
摘要:
A method and a plant for manufacturing tyres for vehicle wheels wherein the method includes the steps of: a) building in a building station a substantially cylindrical carcass structure; b) manufacturing in a finishing station a substantially cylindrical sleeve including a tread band applied at a radially outer position with respect to a belt structure including at least one belt layer. Step b) includes the steps of assembling a first belt structure at a first working position on a first auxiliary drum of the finishing station; applying a tread band at a second working position at a radially outer position with respect to a second belt structure previously assembled on a second auxiliary drum of the finishing station, positioning the first auxiliary drum supporting the first belt structure at the second working position; and positioning the second auxiliary drum supporting the substantially cylindrical sleeve thus obtained at a picking position of the finishing station.
摘要:
An apparatus for manufacturing a vehicle tire includes means for preparing and toroidally shaping a carcass structure, preparing and arranging a belt structure as a crown around the carcass structure, and wrapping a tread around the belt structure. The means for preparing the belt structure includes an extrusion apparatus for forming a sheet of rubber-coated fabric including a plurality of reinforcing cords substantially parallel to one another, means for conveying the sheet, a first cutting device for cutting the sheet to obtain a plurality of strips, a device for transferring the strips, a device for splicing the strips to form a substantially continuous belt assembly, means for conveying the strips and the belt assembly, second and third cutting devices, means for conveying the belt strips and portions of the belt strips, and at least one assembly drum adapted to support the portions of the belt strips.
摘要:
Assembly for building a green or non-vulcanized tire for vehicles, such as passenger cars, the assembly being provided with two, separately drivable, building drums (13, 16), in line with each other, for the belt and the tread; two carcass drums (40, 40') located parallel to each other, mounted on a common, rotatable shaft (39), the rotatable shaft being rotatable such that the one Carcass drum (40) and the other carcass drum (40'), respectively, can be in line with the building drums; a first (14) and a second (19) transfer ring, both movably disposed on a transfer track (18), the first transfer ring (14) being movable between the belt building drums (13, 16) and the second transfer ring (19) being movable between the carcass drums (40, 40') and the closest building drum; a breaker ply servicer (30) and a cap ply unit (31) for supplying tire components to a first building drum (13); a tread servicer (32) and a winding unit (15) for supplying tire components to a building drum; a bead holding (27) and bead placing unit (21) and a carcass component servicer (29) for supplying tire components to a carcass drum (22) in line with the building drums, a tread stitcher (28) for stitching an assembly of inter alia a breaker ply and tread against the carcass components provided on a carcass drum (22) in line with the building drums for forming a green tire; and a removing unit (20) for removing the green tire from the second transfer ring.
摘要:
A hot tire forming method whereby at least some of the elements constituting each tire are formed starting from respective masterbatches, which are mixed with given chemical compounds inside respective continuous mixers to obtain respective final mixes, which are hot-fed to respective continuous production means, such as extruders, for obtaining semifinished products, which are hot-fed onto a green tire building drum, with the completed green tire then being transferred, hot, to a curing department; the transfer from the continuous mixers to the curing department being performed in such a manner as to preserve, inside each green tire entering the curing department, at least part of the initial mixing thermal energy and at least part of the initial continuous production thermal energy.