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1.发明授权公开(公告)号：US11346792B2
公开(公告)日：2022-05-31
申请号：US16772116
申请日：2018-12-19
申请人： PIRELLI TYRE S.P.A.
发明人： Vincenzo Boffa , Alessandro Held , Fabio Regoli
IPC分类号： G01B11/24 , G01N21/95 , H04N13/156 , H04N13/296 , G01M17/02 , G01N21/88
摘要： An apparatus for checking tyres has at least one check unit at least two consecutively placed check stations defining a check path such that each check station is traversed in one cycle time and by pitches by each tyre to be checked. Each check station includes: a support device for one tyre at a time housed in the respective check station, high-definition image acquisition systems of a surface of the tyre, and movement devices. The high-definition image acquisition systems have systems for acquiring high-definition two-dimensional and three-dimensional images. Only one of the at least two check stations has all the high-definition three-dimensional image acquisition systems of the check unit.
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公开(公告)号：US10627220B2
公开(公告)日：2020-04-21
申请号：US15535303
申请日：2015-12-15
申请人： PIRELLI TYRE S.P.A.
IPC分类号： G01M17/02 , G01B11/24 , G01B11/30 , G01N21/88 , G01N21/954 , G01N21/892
摘要： An apparatus for checking tires described as a linear camera having an objective line lying on an optical plane; a first, a second and a third light source for emitting respectively a first, a second and a third light radiation; a command and control unit 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 of the tire synchronously with the activation of the first, second and third source. The first and second light source lie on opposite sides of the optical plane. Furthermore, the first, second and third light source include each one or more sub-sources each having a respective main extension direction parallel to the optical plane and 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.
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公开(公告)号：US09719944B2
公开(公告)日：2017-08-01
申请号：US14902464
申请日：2014-07-07
申请人： PIRELLI TYRE S.P.A.
IPC分类号： G01M17/02 , G01N21/954 , G01N21/95 , G01N21/952 , G01N21/88 , G01N21/17
CPC分类号： G01N21/954 , G01M17/027 , G01N21/17 , G01N21/8851 , G01N21/95 , G01N21/952 , G01N2021/8887
摘要： A method, and related apparatus, for controlling tyres in a production line, includes: predisposing a tyre to be controlled; elastically deforming a lateral wall portion of the tyre by imparting a compression force on an outer contact surface of the lateral wall portion, the compression force having axial direction and sense directed toward the middle line plane; illuminating an inner and/or outer surface of the lateral wall portion and detecting an image of the illuminated surface; generating a control signal representative of the detected image; and analyzing the control signal in order to detect the possible presence of flaws on the lateral wall portion.
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公开(公告)号：US11752715B2
公开(公告)日：2023-09-12
申请号：US16448791
申请日：2019-06-21
申请人： Pirelli Tyre S.p.A.
发明人： Gianni Mancini , Riccardo Antoj , Vincenzo Boffa
CPC分类号： B29D30/00 , B29D30/06 , B29D30/0601 , B29D30/08 , B29D2030/0066 , B29D2030/0635 , B29D2030/0665 , B29D2030/0675
摘要： A plant (2) for building tyres comprises a system for managing initial components (3); a system for managing the manufacturing of semi-finished products (4) starting from one or more initial components; a system for managing the building of a green tyre (5) starting from one or more semi-finished products; a system for managing the curing of said green tyre (6). The logical set of a control unit (8) for the plant (2) and/or of one or more from among control units (8a-8e) for the management systems (3-6) and/or of a automatic visual control system (7) is programmed for controlling at least two parameters, assigning to each of these a quality index (I), discarding a tyre being processed when a quality index (I) corresponding to said discard level (5) is assigned to at least one of said parameters and feedbacking the control result of at least one parameter in order to verify the quality index (I) of the parameters.
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公开(公告)号：US11635294B2
公开(公告)日：2023-04-25
申请号：US17125557
申请日：2020-12-17
申请人： PIRELLI TYRE S.P.A.
发明人： Vincenzo Boffa , Luca Tersi , Valeriano Ballardini
摘要： A station for checking a tyre for vehicle wheels. The checking station includes a background with a support surface lying on a plane perpendicular to a reference axis, an image acquisition apparatus to acquire an image of the tyre arranged with a first outer lateral surface in contact with the support surface and a second outer lateral surface facing the image acquisition apparatus, an illumination system and a computer for generating a working image from the acquired image. The image acquisition apparatus, the illumination system and of the background are arranged to generate a contrast, in the working image, between the entire second outer lateral surface of the tyre and an area circumferentially surrounding the tyre.
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6.发明授权公开(公告)号：US11428607B2
公开(公告)日：2022-08-30
申请号：US16772758
申请日：2018-12-19
申请人： PIRELLI TYRE S.P.A.
摘要： A station for checking tyres includes a support structure defining an operating space for receiving a tyre and an overturning device with grip elements for engaging a radially outer portion of the tyre. A checking device includes a mechanical arm and at least one sensor associated with the mechanical arm. The overturning device overturns the tyre around an overturning axis perpendicular to a rotation axis of the tyre when the tyre is in the operating space. The mechanical arm is operatively active within the operating space and carries the sensor at least partially within the tyre for executing checks on an inner surface of the tyre housed in the operating space.
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公开(公告)号：US11215567B2
公开(公告)日：2022-01-04
申请号：US17069337
申请日：2020-10-13
申请人： Pirelli Tyre S.p.A.
发明人： Vincenzo Boffa , Alessandro Held , Fabio Regoli , Valeriano Ballardini , Giuseppe Casadio Tozzi
摘要： Apparatus (1) for checking tyres, comprising: a support frame (2); a flange (3); and an acquisition system (4) of three-dimensional images of a surface of a tyre, the acquisition system being mounted on the support frame and comprising: a matrix camera (5), a linear laser source (7), and a reflecting surface (12) which intersects the propagation axis (9) of the linear laser beam and the optical axis (6) of the matrix camera (5), wherein a first angle (50) formed between a first section (14) and a second section (31) of the optical axis (6) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse, and wherein a second angle (51) formed between a first section (16) and a second section (32) of the propagation axis (9) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse.
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公开(公告)号：US10605698B2
公开(公告)日：2020-03-31
申请号：US15780602
申请日：2016-12-16
申请人： PIRELLI TYRE S.P.A.
发明人： Alessandro Held , Vincenzo Boffa , Daniele Pecoraro , Valeriano Ballardini , Josef Engelsberger , Bernd Leitner
IPC分类号： G01N21/954 , G01M17/02 , G01N21/88 , G01N21/95 , H04N5/225
摘要： Method for checking a tyre. The method includes associating first and second independent light sources with a camera, applying a first force against a first surface portion of the tyre to generate a first deformed surface portion, and illuminating the first deformed surface portion with a first light radiation emitted by the first light source while keeping the second light source deactivated. A first image of the first deformed surface portion is then acquired by the camera. The first force is removed and a second surface portion partially distinct from the first surface portion is illuminated with a second light radiation emitted by the second light source without deforming the second surface portion. A second image of the second surface portion is then acquired by the camera. The first and second images are processed for detection of possible defects in the first and second surface portions.
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9.发明授权公开(公告)号：US09835524B2
公开(公告)日：2017-12-05
申请号：US14416976
申请日：2013-07-23
申请人： PIRELLI TYRE S.p.A.
CPC分类号： G01M17/027 , B29D30/0061 , B29D2030/0066
摘要： A method for segmenting the surface of a tire including at least one groove, includes: irradiating a portion of the surface of the tire by means of electromagnetic radiation having a wavelength in the visible spectrum; acquiring an image of the irradiated portion of the surface; and processing the image so as to segment it into regions corresponding to regions of the tire which do or do not belong to the at least one groove. Additionally, processing the image so as to segment it includes: calculating a statistical quantity associated with the irradiation by electromagnetic radiation for each region of the image; and determining whether the region of the image does or does not belong to the at least one groove according to the value of the statistical quantity. Equipment for segmenting a surface of a tire including at least one groove.
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公开(公告)号：US09599541B2
公开(公告)日：2017-03-21
申请号：US15037874
申请日：2014-11-21
申请人： PIRELLI TYRE S.P.A.
发明人： Vincenzo Boffa , Riccardo Antoj , Gabriele Pece , Giuseppe Casadio Tozzi , Valeriano Ballardini
CPC分类号： G01M17/024 , B29D30/0633 , B29D2030/0635 , G01M17/02
摘要： An apparatus for controlling tires includes a support plane configured for receiving a tire with axial middle line plane parallel to the support plane, defining an abutted lateral portion and a free lateral portion arranged at a specific height with respect to the support plane. A thrust element is configured for applying, to a measurement surface of the free lateral portion, a force directed toward the support plane. A positioning actuator is operatively associated with the thrust element and configured for moving the thrust element with at least one motion component perpendicular to a rotation axis of the tire. The apparatus also includes devices for modifying the angular position of the measurement surface. A control unit is programmed for detecting a first value of output data at each position of the measurement surface as a function of a first value of input data maintained substantially constant along at least one complete rotation of the measurement surface around the rotation axis and for detecting a second value of the output data at each position of the measurement surface. The second value of the output data corresponds with a second value of the input data maintained substantially constant along at least one complete rotation of the measurement surface. The control unit includes a module programmed for calculating, at each position of the measurement surface, a difference between the second value of the output data and the first value of the output data.
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