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公开(公告)号：US10213977B2
公开(公告)日：2019-02-26
申请号：US15099069
申请日：2016-04-14
Applicant: Pirelli Tyre S.p.A.
Inventor： Maurizio Marchini , Cesare Emanuele Amurri , Marco Cantu , Gianni Mancini , Giorgia Sgalari
Abstract: A carcass ply is built on a forming drum by application of a plurality of strip-like elements by the steps of: setting a width of these strip-like elements, setting a width of the overlapped part between two adjacent strip-like elements, setting a fitting diameter of the forming drum by calculating a corresponding extension of a radially external laying surface, and calculating a whole number of strip-like elements to be applied. The whole number of drip-like elements is applied by rotating the forming drum around a geometric rotation axis thereof, and applying pairs of strip-like elements by means of a first laying unit and a second laying unit located close to opposite portions of the forming drum relative to the geometric rotation axis. When the calculated whole number of strip-like elements is an odd number, before at least one application step, the first laying unit is shifted along an adjustment path orthogonal to the geometric rotation axis and substantially tangent to the radially external laying surface of the forming drum.
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公开(公告)号：US09836041B2
公开(公告)日：2017-12-05
申请号：US15159695
申请日：2016-05-19
Applicant: PIRELLI TYRE S.P.A.
Inventor： Renato Caretta , Marco Cantu , Maurizio Marchini , Ignazio De Gese
CPC classification number: G05B19/402 , B29D30/1628 , B29D30/60 , B29D30/62 , B29D2030/082 , B29D2030/1678 , G05B15/02 , G05B2219/39483
Abstract: A robot arm having seven axes of actuation imparts to a toroidal support a circumferential distribution motion about its own geometric axis simultaneously with controlled transverse distribution displacements in front of a dispensing organ of a strip of elastomeric material. The strip thus forms a plurality of turns, the orientation and mutual superposition whereof are controlled in such a way as to control the thickness variations to be conferred to a component of a tire being manufactured, based on a pre-determined laying scheme pre-set on an electronic computer. The rotation of the toroidal support is controlled in such a way as to obtain a peripheral speed of application exceeding the theoretical feeding rate of the strip, able to be increased or decreased as needed to form turns with reduced or, respectively, enlarged cross section.
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公开(公告)号：US09339980B2
公开(公告)日：2016-05-17
申请号：US13960414
申请日：2013-08-06
Applicant: Pirelli Tyre S.p.A.
Inventor： Maurizio Marchini , Cesare Emanuele Amurri , Marco Cantu , Gianni Mancini , Giorgia Sgalari
CPC classification number: B29D30/30 , B29D30/005 , B29D30/1657 , B29D30/3057
Abstract: A carcass ply is built on a forming drum by application of a plurality of strip-like elements, through the steps of: setting a width of these strip-like elements, setting a width of the overlapped part between two adjacent strip-like elements, setting a fitting diameter of the forming drum, calculating a whole number of strip-like elements to be applied. The whole number of strip-like elements is applied by rotating the forming drum around a geometric rotation axis thereof, and applying pairs of strip-like elements by means of a first and second laying unit located close to opposite portions of the forming drum. When the calculated whole number of strip-like elements is an odd number, the first laying unit is shifted along an adjustment path orthogonal to the geometric rotation axis and substantially tangent to the radially external laying surface of the forming drum.
Abstract translation: 通过施加多个条状元件将胎体帘布层构建在成形鼓上，步骤为：设置这些带状元件的宽度，设定两个相邻带状元件之间的重叠部分的宽度， 设定成形滚筒的配合直径，计算要应用的条状元件的整数。 通过使成形鼓围绕其几何旋转轴线旋转并通过靠近成形滚筒的相对部分的第一和第二放置单元施加成对的条状元件来施加整个数量的带状元件。 当计算出的带状元件的整数为奇数时，第一铺设单元沿与几何旋转轴正交的基本上与成形滚筒的径向外部铺设表面相切的调节路径移动。
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