Electrical control system and method for a tire building machine server
First Claim
1. A circuit for controlling the position of a material on a conveyor relative to a locus of points of an elastic material on the surface of a building drum having a drum rotation drive motor, the conveyor having both longitudinal and transverse reference axes, a conveyor position drive motor and conveyor drive motor, comprising:
- first sensor means for generating an output signal indicative of a position of the material relative to the transverse reference axis and the direction of any motion thereof;
second sensor means for generating an output signal indicative of the position of the locus of points of the elastic material on the surface of the building drum and the direction of any rotation thereof;
third sensor means for generating a pulse train output signal having a number of pulses that is indicative of the position of the material relative to the longitudinal reference axis;
ratio means including rate multiplier means for receiving said output signal from one of said first or said second sensor means and generating an output signal in a preselected proportion thereto;
tracking error correction means receiving said output signal from said ratio means and providing an output signal to the conveyor drive motor whereby the conveyor drive motor maintains the desired position of the material relative to the transverse reference axis and the locus of points of the elastic material on the surface of the building drum;
position error counter means receiving said pulse train output signal from said third sensor means and counting from a preselected number for a count proportional to the number of pulses in said pulse train output signal, the final number in said position error counter means indicative of the necessary correction in the position of the material to maintain a preselected position relative to the longitudinal reference axis; and
,position error correction means receiving said final number from said position error counter means and providing an output signal to the conveyor position drive motor whereby the necessary correction to return the material to its preselected position relative to the longitudinal reference axis is achieved.
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Accused Products
Abstract
An electrical control system (31) for a tire building machine servicer (10) and method for controlling the position of a component material (13) emitted from the servicer (10) on a conveyor (12) includes an electrical guidance system (33) and an electrical drive tracking system (34). The electrical guidance system (33) includes two cameras (39, 40) providing pulse train output signals indicative of the position of the material edges relative to a fixed longitudinal axis (23), the number of pulses in which are counted in lateral position error counter (46) to provide an error correction signal to a conveyor position drive motor (30). The electrical drive tracking system (34) includes two encoders (81, 82) providing pulse train output signals indicative of the position of the component material (13) relative to the locus of points of an elastic material on a rotatable tire building drum (15). The encoder pulse train output signals are processed and counted in a tracking error counter (110) to provide a tracking error correction signal to a conveyor drive motor (19).
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Citations
42 Claims
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1. A circuit for controlling the position of a material on a conveyor relative to a locus of points of an elastic material on the surface of a building drum having a drum rotation drive motor, the conveyor having both longitudinal and transverse reference axes, a conveyor position drive motor and conveyor drive motor, comprising:
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first sensor means for generating an output signal indicative of a position of the material relative to the transverse reference axis and the direction of any motion thereof; second sensor means for generating an output signal indicative of the position of the locus of points of the elastic material on the surface of the building drum and the direction of any rotation thereof; third sensor means for generating a pulse train output signal having a number of pulses that is indicative of the position of the material relative to the longitudinal reference axis; ratio means including rate multiplier means for receiving said output signal from one of said first or said second sensor means and generating an output signal in a preselected proportion thereto; tracking error correction means receiving said output signal from said ratio means and providing an output signal to the conveyor drive motor whereby the conveyor drive motor maintains the desired position of the material relative to the transverse reference axis and the locus of points of the elastic material on the surface of the building drum; position error counter means receiving said pulse train output signal from said third sensor means and counting from a preselected number for a count proportional to the number of pulses in said pulse train output signal, the final number in said position error counter means indicative of the necessary correction in the position of the material to maintain a preselected position relative to the longitudinal reference axis; and
,position error correction means receiving said final number from said position error counter means and providing an output signal to the conveyor position drive motor whereby the necessary correction to return the material to its preselected position relative to the longitudinal reference axis is achieved. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A circuit for controlling the position of a material on a conveyor relative to a locus of points of an elastic material on the surface of a building drum having a drum rotation drive motor, the conveyor having both longitudinal and transverse reference axes and a conveyor drive motor, comprising:
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first sensor means for generating an output signal indicative of the position of the material relative to the transverse reference axis and the direction of any motion thereof; second sensor means for generating an output signal indicative of the position of the locus of points of the elastic material on the surface of the building drum and the direction of any rotation thereof; ratio means including rate multiplier means for receiving said output signals from one of said first or said second sensor means and generating an output signal in a preselected proportion thereto; and
,tracking error correction means for receiving said output signal from said ratio means and providing an output signal to the conveyor drive motor whereby the conveyor drive motor maintains the desired position of the material relative to the transverse reference axis and the locus of points of the elastic material on the surface of the building drum. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method for controlling the position of a material on a conveyor relative to a locus of points of an elastic material on the surface of a building drum having a drum rotation drive motor, the conveyor having both longitudinal and transverse reference axes, a conveyor position drive motor and conveyor drive motor, comprising the steps of:
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generating a first output signal indicative of a position of the material relative to the transverse reference axis and the direction of any motion thereof; generating a second output signal indicative of the position of the locus of points of the elastic material on the surface of the building drum and the direction of any rotation thereof; generating a pulse train output signal having a number of pulses that is indicative of the position of the material relative to the longitudinal reference axis; multiplying one of said first or said second output signals by a preselected ratio; providing an output signal in proportion to said multiplied output signal to the conveyor drive motor whereby the conveyor drive motor maintains the desired position of the material relative to the transverse reference axis and the locus of points of the elastic material on the surface of the building drum; counting in a first counter from a first preselected number for a count proportional to the number of pulses in said pulse train output signal, the final number in said first counter indicative of the necessary correction in the position of the material to maintain a preselected position relative to the longitudinal reference axis; and
,generating an output signal proportional to said final number to be received by the conveyor position drive motor whereby the necessary correction to return the material to its preselected position relative to the longitudinal reference axis is achieved. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 40, 41, 42)
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35. A method for controlling the position of a material on a conveyor relative to a locus of points of an elastic material on the surface of a building drum having a drum rotation drive motor, the conveyor having both longitudinal and transverse reference axes and a conveyor drive motor, comprising the steps of:
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generating a first output signal indicative of the position of the material relative to the transverse reference axis and the direction of any motion thereof; generating a second output signal indicative of the position of the locus of points of the elastic material on the surface of the building drum and the direction of any rotation thereof; multiplying one of said first or said second output signals by a preselected ratio; and
,providing an output signal in proportion to said multiplied output signal to the conveyor drive motor whereby the conveyor drive motor maintains the desired position of the material relative to the transverse reference axis and the locus of points of the elastic material on the surface of the building drum. - View Dependent Claims (36, 37, 38, 39)
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Specification