公开(公告)号：WO2015097635A1

公开(公告)日：2015-07-02

申请号：PCT/IB2014/067209

申请日：2014-12-22

Applicant: PIRELLI TYRE S.P.A.

Inventor： REGOLI, Fabio ,  BOFFA, Vincenzo ,  DI STEFANO, Luigi ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02

CPC classification number: G01M17/027 ,  G01B11/0608 ,  G05B19/41875 ,  G05B2219/32368

Abstract: A method is described for detecting defects on tyres in a tyre production process. The method comprises providing a tyre, comprises acquiring (202) a three-dimensional image of a surface portion of the tyre, comprises generating (204), as a function of the acquired image, a plurality of values indicating the measure of a height profile (S_pa) of the surface portion of the tyre, comprises calculating (205), as a function of the plurality of values of the measure of the height profile and according to a consensus interpolation, a plurality of values indicating an estimation of a reference height profile ( ) of the surface portion of the tyre, comprises calculating (206), as a function of the plurality of values of the measure of the height profile and of the estimation of the reference height profile, a height profile of possible defects (S_papd) in the surface portion of the tyre, and comprises comparing (207, 208) values of the height profile of possible defects with respect to a threshold value (S_th) in order to detect possible defects in the surface portion of the tyre.

Abstract translation: 描述了一种用于在轮胎生产过程中检测轮胎上的缺陷的方法。 该方法包括提供轮胎，包括获取（202）轮胎的表面部分的三维图像，包括根据所获取的图像生成（204）多个指示高度分布的度量的值 （S_pa）包括根据所述高度分布的度量的多个值并根据共有插值来计算（205）多个值，所述多个值表示参考高度的估计 轮胎的表面部分的轮廓（）包括计算（206）作为高度轮廓的测量的多个值和参考高度轮廓的估计的函数，可能的高度轮廓 在轮胎的表面部分中的缺陷（S_papd），并且包括相对于阈值（S_th）比较可能缺陷的高度分布的值（207,208），以便检测表面部分中的可能的缺陷o 轮胎

公开(公告)号：WO2018015909A1

公开(公告)日：2018-01-25

申请号：PCT/IB2017/054377

申请日：2017-07-19

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  ANTOJ, Riccardo ,  MARCHINI, Maurizio ,  CASADIO TOZZI, Giuseppe ,  BALLARDINI, Valeriano

IPC: G01M17/02

CPC classification number: G01M17/022

Abstract: The present invention is relative to a method for checking tyres, comprising : providing a tyre (3) having a rotation axis (X) on a support plane (2) defining a rested lateral portion (10a) and a free lateral portion (10b) detecting at least one three-dimensional profile of a ring-shaped surface (31) of said tyre with centre in said rotation axis (X), said three-dimensional profile including a height of a plurality of points of said ring-shaped surface; translating a tool (23, 25) towards said tyre arranged on the support plane so as to rest on a measurement surface (M), said measurement surface being a portion of said ring-shaped surface (31); pushing said measurement surface through said tool (23, 25) up to a predetermined tool height calculated with respect to a value that is a function of a height of said undeformed measurement surface as present in said three-dimensional profile of said ring- shaped surface (31) setting said tyre (3) in relative rotation with respect to said tool (23, 25) so that said tool is in successive contact with a plurality of different measurement surfaces, (M), portions of said ring- shaped surface, angularly spaced, along at least one complete relative rotation of said tyre about said rotation axis (X); measuring a force (F) exerted by said tool (23, 25) on said plurality of measurement surfaces at a plurality of relative angular positions between said tyre and said tool along said complete rotation and determining whether said tyre has a defect based on said force (F) measured.

Abstract translation: 本发明涉及一种用于检查轮胎的方法，包括：提供轮胎（3），所述轮胎在支撑平面（2）上具有旋转轴线（X），所述轮胎（3）限定了休息的横向部分（10a） 和自由横向部分（10b），所述自由横向部分（10b）以所述旋转轴线（X）中心检测所述轮胎的环形表面（31）的至少一个三维轮廓，所述三维轮廓包括多个 所述环形表面的点; 将工具（23,25）朝向布置在所述支撑平面上的所述轮胎平移以便搁置在测量表面（M）上，所述测量表面是所述环形表面（31）的一部分; 通过所述工具（23,25）推动所述测量表面达到相对于所述环形表面的所述三维轮廓中存在的所述未变形的测量表面的高度的函数所计算的预定工具高度 （31），使所述轮胎（3）相对于所述工具（23,25）相对旋转，使得所述工具与多个不同的测量表面（M），所述环形表面的一部分， 沿着所述轮胎围绕所述旋转轴线（X）的至少一个完整的相对旋转角度地间隔开; 在所述轮胎和所述工具之间沿所述完整旋转的多个相对角位置处测量由所述工具（23,25）施加在所述多个测量表面上的力（F），并基于所述力确定所述轮胎是否具有缺陷 （F）测量。

公开(公告)号：WO2017141094A1

公开(公告)日：2017-08-24

申请号：PCT/IB2016/058036

申请日：2016-12-28

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  ANTOJ, Riccardo ,  MARCHINI, Maurizio ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02

CPC classification number: G01M17/02 ,  G01M17/027

Abstract: The invention relates to an apparatus (1 ) for checking tyres (200), the apparatus comprising: • a support (102) on which said tyre is adapted to be rested, said tyre thus having a resting wall and a free wall defined in it, said free wall being arranged at a certain height with respect to said support; • a first deformation system (130) configured to apply, through physical contact, a compression force on a surface of a first portion of said free wall, in order to elastically deform it so as to form a first deformed portion of free wall; • a first positioning actuator (132) operatively associated with said first deformation system (130) and configured to move said first deformation system towards and away from said surface of said first portion of free wall of said tyre, said movement having at least one component along a first axis (X1 ) parallel to a rotation axis (201 ) of said tyre; • a second deformation system (300) configured to apply, through physical contact, a compression force on a surface of a second portion of said free wall, in order to elastically deform it so as to form a second deformed portion of free wall; · a second positioning actuator (332) operatively associated with said second deformation system (300) and configured to move said second deformation system towards and away from said surface of said second portion of free wall of said tyre, said movement having at least one component along a second axis (X2) parallel to said rotation axis (201 ) of said tyre; · a moving member to set said tyre in relative rotation about said rotation axis with respect to said first deformation system (130) and said second deformation system (300); • wherein a first plane passing through said rotation axis (201 ) of said tyre and said first axis (X1 ) and a second plane passing through said rotation axis (201 ) of said tyre and said second axis (X2), form an angle between them comprised between about 90° and about 180°.

Abstract translation: 本发明涉及一种用于检查轮胎（200）的设备（1），所述设备包括：·支撑件（102），所述轮胎适于搁置在所述支撑件上，所述轮胎因此具有搁置 所述自由壁被布置在相对于所述支撑件的一定高度处; ·第一变形系统（130），其被配置为通过物理接触在所述自由壁的第一部分的表面上施加压缩力，以便使其弹性变形以形成自由壁的第一变形部分; ·第一定位致动器（132），所述第一定位致动器与所述第一变形系统（130）可操作地相关联并且构造成使所述第一变形系统朝向和远离所述轮胎的自由壁的所述第一部分的所述表面移动，所述移动具有至少一个部件 沿平行于所述轮胎的旋转轴线（201）的第一轴线（X1） ·第二变形系统（300），其被配置为通过物理接触在所述自由壁的第二部分的表面上施加压缩力以使其弹性变形以形成自由壁的第二变形部分; ＆middot; 第二定位致动器（332），所述第二定位致动器（332）与所述第二变形系统（300）可操作地关联并且构造成使所述第二变形系统朝向和远离所述轮胎的自由壁的所述第二部分的所述表面移动，所述移动具有沿着 平行于所述轮胎的所述旋转轴线（201）的第二轴线（X2）; ＆middot; 移动构件，用于相对于所述第一变形系统（130）和所述第二变形系统（300）围绕所述旋转轴线相对旋转地设置所述轮胎; 其中穿过所述轮胎的所述旋转轴线（201）和所述第一轴线（X1）的第一平面和穿过所述轮胎的所述旋转轴线（201）和所述第二轴线（X2）的第二平面之间形成 它们包含在约90°和90°之间; 和大约180°。

公开(公告)号：WO2017103873A1

公开(公告)日：2017-06-22

申请号：PCT/IB2016/057712

申请日：2016-12-16

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  PECORARO, Daniele ,  BALLARDINI, Valeriano ,  ENGELSBERGER, Josef ,  LEITNER, Bernd

IPC: G01M17/02

CPC classification number: G01M17/027

Abstract: The invention relates to a method for checking a tyre, comprising: - Providing a tyre (200) to be checked; - associating a first light source (110) and a second light source (108) able to be activated independently with a camera (105); - applying a first force against a first surface portion (202) of said tyre so as to generate a first deformed surface portion; - illuminating said first deformed surface portion of said tyre with a first light radiation emitted by said first light source (110); - keeping said second light source (108) inactive during said deformation; - acquiring a first image of said first deformed surface portion illuminated by said first light radiation through said camera (105); - removing said first force from said first surface portion of said tyre; - selecting a second surface portion at least partially distinct from said first surface portion of said tyre; - - illuminating said second undeformed surface portion of said tyre with a second light radiation emitted by said second light source (108); - acquiring a second image of said second undeformed surface portion and illuminated by said second light radiation through said camera (105); and - processing said first image and said second image, so as to detect possible defects in said first surface portion and in said second surface portion of said tyre. The invention also relates to an apparatus for checking tyres.

Abstract translation: 本发明涉及一种用于检查轮胎的方法，包括： - 提供待检查的轮胎（200）;以及 - - 使用照相机（105）将能够独立激活的第一光源（110）和第二光源（108）相关联; - 对所述轮胎的第一表面部分（202）施加第一力以产生第一变形表面部分; - 用由所述第一光源（110）发射的第一光辐射照射所述轮胎的所述第一变形表面部分; - 在所述变形期间保持所述第二光源（108）不活动; - 通过所述相机（105）获取由所述第一光辐射照射的所述第一变形表面部分的第一图像; - 从所述轮胎的所述第一表面部分去除所述第一力; - 选择至少部分不同于所述轮胎的所述第一表面部分的第二表面部分; - 用由所述第二光源（108）发射的第二光辐射照射所述轮胎的所述第二未变形表面部分; - 通过所述照相机（105）获取所述第二未变形表面部分的第二图像并且被所述第二光辐射照亮; 以及 - 处理所述第一图像和所述第二图像，以便检测所述轮胎的所述第一表面部分和所述第二表面部分中的可能缺陷。 本发明还涉及一种用于检查轮胎的设备。

公开(公告)号：WO2017103809A1

公开(公告)日：2017-06-22

申请号：PCT/IB2016/057613

申请日：2016-12-14

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  REGOLI, Fabio ,  BALLARDINI, Valeriano

IPC: G01M17/02 ,  G01N21/954

CPC classification number: G01M17/027 ,  G01N21/9515 ,  G01N21/952

Abstract: Apparatus (1) for the analysis of tyres, and related method, the apparatus comprising : a support frame (2) and an acquisition system (11) for acquiring three-dimensional images of a surface of a tyre, said acquisition system being mounted on said support frame and comprising : a matrix camera (12), having an optical axis (16), and a laser source (20) adapted to emit a linear beam having a propagation plane (21) and a propagation axis (23), wherein an acute angle (24) formed between said optical axis and said propagation axis is greater than or equal to 5° and less than or equal to 25°.

Abstract translation: 一种用于分析轮胎的设备（1），以及相关方法，所述设备包括：支撑框架（2）和获取系统（11），所述获取系统（11）用于获取轮胎的表面的三维图像 所述采集系统安装在所述支撑框架上并且包括：具有光轴（16）的矩阵相机（12）和适于发射具有传播平面（21）的线性光束的激光源（20），以及 传播轴（23），其中在所述光轴和所述传播轴之间形成的锐角（24）大于或等于5°; 并且小于或等于25°。

公开(公告)号：WO2017001969A1

公开(公告)日：2017-01-05

申请号：PCT/IB2016/053679

申请日：2016-06-21

Applicant: PIRELLI TYRE S.P.A.

Inventor： GHIDOTTI PIOVAN, Alessandro ,  BALLARDINI, Valeriano ,  BOFFA, Vincenzo ,  REGOLI, Fabio ,  DI STEFANO, Luigi

IPC: G06T7/00 ,  G01M17/02 ,  G01N21/956

CPC classification number: G01M17/027 ,  G01N21/95607 ,  G06T7/001 ,  G06T2207/10152 ,  G06T2207/20036 ,  G06T2207/20216 ,  G06T2207/20224

Abstract: Method and related apparatus for analysing a surface of a tyre, including: acquiring one or more digital images of a surface portion having a pattern that comprises a scheme that is repeated substantially equal thereto in a plurality of positions; identifying a plurality of first regions of said one or more digital images, each corresponding to a respective scheme sub-portion; identifying a respective plurality of regions homologous to each first region, wherein the respective scheme sub-portion is substantially identical to the respective scheme sub-portion of each first region; calculating a model of the respective scheme sub-portion, where each pixel is associated with a mean value of the values associated with the pixels of each first region and of the respective homologous regions having the same relative coordinates of said each pixel; obtaining a pattern model using the calculated scheme sub-portion models.

Abstract translation: 一种用于分析轮胎表面的方法和相关装置，包括：获取具有图案的表面部分的一个或多个数字图像，所述图案包括在多个位置中基本上与其重复的方案; 识别所述一个或多个数字图像的多个第一区域，每个对应于相应的方案子部分; 识别与每个第一区域同源的相应多个区域，其中相应的方案子部分基本上与每个第一区域的各个方案子部分相同; 计算相应方案子部分的模型，其中每个像素与与每个第一区域的像素和具有所述每个像素的相同相对坐标的各个同源区域相关联的值的平均值相关联; 使用计算的方案子部分模型获得模式模型。

公开(公告)号：WO2016103110A1

公开(公告)日：2016-06-30

申请号：PCT/IB2015/059612

申请日：2015-12-15

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01B11/245 ,  G01B11/30 ,  G01M17/02 ,  G01N21/88 ,  G01N21/892

CPC classification number: G01B11/30 ,  G01B11/24 ,  G01M17/027 ,  G01N21/8806 ,  G01N21/8851 ,  G01N21/954 ,  G01N2021/8838 ,  G01N2021/8924

Abstract: Apparatus (1) for checking tyres comprising a linear camera (105) having an objective line (106) lying on an optical plane (107); a first (108), a second (109) and a third light source (110) for emitting respectively a first, a second and a third light radiation; a command and control unit (140) for selectively activating at least one from among the first, second and third light source and activating the linear camera in order to acquire a two-dimensional image of a linear surface portion (201) of the tyre synchronously with the activation of the first, second and third source, wherein the first and second light source lie on opposite sides of the optical plane, wherein the first, second and third light source comprise each one or more sub- sources (111, 112, 113) each having a respective main extension direction (114) parallel to the optical plane and wherein the distance of the sub-sources of the third light source from the optical plane is less than the distance of the first and second light source from the optical plane.

Abstract translation: 用于检查轮胎的装置（1），包括具有位于光学平面（107）上的物镜线（106）的线性相机（105）; 分别发射第一，第二和第三光辐射的第一（108），第二（109）和第三光源（110） 命令和控制单元（140），用于选择性地激活第一，第二和第三光源中的至少一个，并且激活线性相机以便同步地获取轮胎的线性表面部分（201）的二维图像 其中所述第一，第二和第三源的激活，其中所述第一和第二光源位于所述光学平面的相对侧上，其中所述第一，第二和第三光源包括每个一个或多个子源（111,112， 113），其各自具有平行于光学平面的相应的主延伸方向（114），并且其中第三光源的子源与光学平面的距离小于第一和第二光源与光学器件的距离 平面。

公开(公告)号：WO2016088040A2

公开(公告)日：2016-06-09

申请号：PCT/IB2015/059252

申请日：2015-12-01

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  MANCINI, Gianni ,  BERENGUER, Albert ,  BALLARDINI, Valeriano ,  HUBER, Rainer

IPC: G01M17/02

CPC classification number: G01M17/021 ,  B29D2030/0027 ,  B29D2030/0066 ,  G01M17/022 ,  G01M17/027

Abstract: The present invention relates to an apparatus and a method for checking tyres. The apparatus (18) comprises a first check unit (19) having an inlet (20) for tyres (2) and comprising a plurality of check tools (43a,43b,43c,43d,43e,43f,43g,43h); a second check unit (23) having an outlet (25) for the tyres (2) and comprising a plurality of check tools (43a,43b,43c,43d,43e,43f,43g,43h); an overturning and transport device (22) operatively interposed between the first check unit (19) and the second check unit (23). The first check unit (19), the second check unit (23) and the overturning and transport device (22) define a check path (26) configured in a manner so as to be traversed by each tyre (2) step by step. The first check unit (19) and the second check unit (23) comprise the same check tools (43a,43b,43c,43d,43e,43f,43g,43h) configured for executing the same checks on respective axial halves (2a, 2b) of the tyres (2). The overturning and transport device (22) is configured for overturning the tyre (2) around an overturning axis (Z) perpendicular to a main rotation axis (X-X) of the tyre (2) and belonging to an axial centreline plane (M) thereof.

Abstract translation: 本发明涉及检查轮胎的装置和方法。 装置（18）包括具有轮胎（2）入口（20）的第一检查单元（19），并且包括多个检查工具（43a，43b，43c，43d，43e，43f，43g，43h） 第二检查单元（23）具有用于轮胎（2）的出口（25），并且包括多个检查工具（43a，43b，43c，43d，43e，43f，43g，43h）; 可操作地插入在第一检查单元（19）和第二检查单元（23）之间的翻转和输送装置（22）。 第一检查单元（19），第二检查单元（23）和翻转和传送装置（22）限定了以每个轮胎（2）逐步穿过的方式构造的检查路径（26）。 第一检查单元（19）和第二检查单元（23）包括相同的检查工具（43a，43b，43c，43d，43e，43f，43g，43h），其被配置用于对相应的轴向半部（2a， 2b）的轮胎（2）。 翻转和运输装置（22）被构造成使轮胎（2）围绕垂直于轮胎（2）的主旋转轴线（XX）的倾覆轴线（Z）翻转并且属于其轴向中心线平面（M） 。

公开(公告)号：WO2018122736A1

公开(公告)日：2018-07-05

申请号：PCT/IB2017/058427

申请日：2017-12-27

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  ANTOJ, Riccardo ,  HELD, Alessandro ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02

Abstract: A method for checking tyres, comprising: • a database associating tyre models with their three-dimensional profiles and a compression force, where constructing the database comprises for each tyre model: • i. providing said tyre model on a resting plane, wherein the tyre lies on one side, • ii. pushing the opposite side of the tyre to a predetermined height; • iii. repeating the measurement for a plurality of points on the tyre surface for at least an entire rotation of the tyre • iv. measuring a force exerted on each point • v. calculating a statistical value as a function of said force; • vi. associating said statistical value with said three-dimensional profile of tyre model in said database; • during checking a tyre: applying, to an outer surface of a tyre, said compression force equal to said statistical value as a function of said force according to said model that corresponds to said tyre to be checked as obtained from said database to detect a defect thereof.

公开(公告)号：WO2018015908A1

公开(公告)日：2018-01-25

申请号：PCT/IB2017/054376

申请日：2017-07-19

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  ANTOJ, Riccardo ,  MARCHINI, Maurizio ,  CASADIO TOZZI, Giuseppe ,  BALLARDINI, Valeriano

IPC: G01M17/02

Abstract: The present invention relates to a method for checking tyres, comprising : i. providing a tyre having a rotation axis on a support plane defining a rested lateral portion and a free lateral portion; ii. detecting at least one three-dimensional profile of a ring-shaped surface of said tyre with centre in said rotation axis of said tyre, said three-dimensional profile including a height of a plurality of points of said ring-shaped surface; iii. translating a tool towards said tyre arranged on the support plane so as to rest on a measurement surface, said measurement surface being a portion of said ring-shaped surface; iv. pushing said measurement surface by means of said tool so as to apply a tool pressing force on said measurement surface towards the support plane; v. setting said tyre in relative rotation with respect to said tool so that said tool is in successive contact with a plurality of different measurement surface, portions of said ring-shaped surface, angularly spaced, keeping the tool pressing force exerted by said tool on said measurement surfaces substantially constant along at least one complete rotation about said rotation axis; vi. measuring a height of said measurement surfaces at a plurality of relative angular positions between said tyre and said tool along said complete rotation during said pushing action; and vii. comparing said height of said measurement surfaces at a plurality of relative angular positions between said tyre and said tool with a height of a plurality of points of said three-dimensional profile of said ring-shaped surface at the same angular positions; and viii. determining whether said tyre has a defect based on said comparison. The invention also concerns an apparatus for checking tyres.

Abstract translation: 本发明涉及一种检查轮胎的方法，包括：i。 提供轮胎，所述轮胎在支撑平面上具有旋转轴线，所述支撑平面限定了休息的横向部分和自由横向部分; II。 以所述轮胎的所述旋转轴线为中心检测所述轮胎的环形表面的至少一个三维轮廓，所述三维轮廓包括所述环形表面的多个点的高度; III。 将工具朝向布置在支撑平面上的所述轮胎平移以便搁置在测量表面上，所述测量表面是所述环形表面的一部分; IV。 借助所述工具推动所述测量表面，以便将所述测量表面上的工具压力施加到所述支撑平面; v。相对于所述工具相对旋转地设置所述轮胎，使得所述工具与多个不同的测量表面连续接触，所述环形表面的角度间隔开的部分保持由所述工具施加的工具按压力 所述测量表面沿着围绕所述旋转轴线的至少一个完整旋转基本恒定; 六。 在所述推动动作期间沿着所述完整旋转在所述轮胎和所述工具之间的多个相对角位置处测量所述测量表面的高度; 和vii。 将在所述轮胎和所述工具之间的多个相对角位置处的所述测量表面的所述高度与所述环形表面的所述三维轮廓在所述相同角位置处的多个点的高度进行比较; 和viii。 基于所述比较确定所述轮胎是否具有缺陷。 本发明还涉及一种用于检查轮胎的设备。