Back to results
US 11,571,867 B2Granted
Apparatus for building and for checking a continuous elongated element of a tyre for vehicle wheels
AssigneePirelli Tyre S.p.A.
InventorCesare Emanuele Amurri
Life of this patent
Estimating the term…
Abstract
An apparatus for building and for checking a continuous elongated element during the building of a tyre for vehicle wheels. A beam of an electromagnetic radiation is projected on a section of the continuous elongated element dispensed by a dispensing head and interposed between the dispensing head and a first contact area of the continuous elongated element with a radially outer surface of a tyre being processed. An image of a radiation reflected by the section is acquired. A first parameter related to the image is detected, and the first parameter is compared with a second reference parameter.
Claims13
An apparatus for building a tyre for vehicle wheels, comprising:
- a forming drum configured to rotate around a rotation axis thereof;
- a dispensing head located at said forming drum and configured to continuously dispense a continuous elongated element up to an area of first contact of said continuous elongated element with a radially outer surface of a tyre being processed carried by said forming drum;
- a motor connected with the forming drum for setting the forming drum into rotation around said rotation axis to wind the continuous elongated element on said radially outer surface in a side-by-side and/or radially superimposed coiled configuration;
- and
- a control device operatively active between the dispensing head and the area of first contact,
- wherein
- i) the control device comprises:
- at least one emitter of at least one beam of electromagnetic radiation facing towards a section of the continuous elongated element,
- at least one sensor facing towards said section and configured to detect at least one radiation reflected by said section, and
- a control unit operatively connected at least to said at least one sensor and configured to determine a first parameter related to a geometrical dimension of the continuous elongated element and to compare said first parameter with a second, reference, parameter;
- ii) said at least one sensor, by detecting said at least one reflected radiation, acquires at least one image of said at least one radiation reflected by said section;
- iii) said at least one beam intercepts lateral longitudinal edges of the continuous elongated element and said at least one image comprises two ends corresponding to said lateral longitudinal edges, the first parameter being related to a distance between said two ends;
- iv) said at least one emitter is a light radiation projector and said at least one sensor comprises a camera;
- and
- v) said at least one beam of electromagnetic radiation is substantially flat and extends transversely with respect to a feeding direction of the continuous elongated element along said section, whereby said image is substantially defined by at least one transverse line.
12 more elements
An apparatus for building a tyre for vehicle wheels, comprising:
- a forming drum configured to rotate around a rotation axis thereof;
- a dispensing head located at said forming drum and configured to continuously dispense a continuous elongated element up to an area of first contact of said continuous elongated element with a radially outer surface of a tyre being processed carried by said forming drum;
- a motor connected with the forming drum for setting the forming drum into rotation around said rotation axis to wind the continuous elongated element on said radially outer surface in a side-by-side and/or radially superimposed coiled configuration;
- and
- a control device operatively active between the dispensing head and the area of first contact;
- wherein
- i) the control device comprises:
- at least one emitter of at least one beam of electromagnetic radiation facing towards a section of the continuous elongated element,
- at least one sensor facing towards said section and configured to detect at least one radiation reflected by said section, and
- a control unit operatively connected at least to said at least one sensor and configured to determine a first parameter related to a geometrical dimension of the continuous elongated element and to compare said first parameter with a second, reference, parameter;
- ii) said sensor, by detecting said at least one reflected radiation, acquires at least one image of said at least one radiation reflected by said section;
- and
- iii) said at least one beam of electromagnetic radiation is substantially flat and extends transversely with respect to a feeding direction of the continuous elongated element in said section, whereby said image is substantially defined by at least one transverse line.
10 more elements
Dependencies are inferred from the claim text.