# US 2009/0260744 A1 · Device and Method for Building a Tyre

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- Number: US 2009/0260744 A1
- Document ID: US20090260744A1
- Status: Published application
- Kind: A1
- Application number: 12/226,295
- Filed: 2007-04-13
- Published: 2009-10-22
- Earliest claimed: 2006-04-13
- Assignees: Texmag GmbH Vertriebsgesellschaft
- Inventors: Herbert Bobinger; Thomas Grimm
- Web page: https://patentgrep.com/patent/US20090260744A1

## CPC

- B29D 30/3007: {by feeding a sheet perpendicular to the drum axis and joining the ends to form an annular element (bending sheets and joining the edges B29C53/42)}
- B29D 2030/4406: {Adjusting the positions of the layers}
- B29D 2030/4418: {laterally, e.g. sideways}
- B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00)

## Abstract

A tyre building machine (1) comprises a rotatable drum (2), to which strips of material (7) can be applied. Strips of material (7) are transported to the drum (2) by means of conveyors (3). The run of the pieces of material (7) transversely in relation to the running direction is sensed by means of a first sensor (9) and fed to a position controlling device (12). To compensate for machine- or transfer-induced errors, at least one second sensor (16), which senses the position of the strip of material (7) transversely in relation to the running direction, is provided in the region of the drum (2). An output signal of this second sensor (16) is in operative connection with the position controlling device (12) to correct the setpoint value correspondingly (FIG. 1).

## Claims

### Claim 1

Method for building a tyre, in which strips of material (7) are fed by conveyors (3) to at least one drum (2) and led through a position control transversely in relation to their running direction, to be subsequently applied to the drum (2), the position of the strips of material (7) on the drum (2) transversely in relation to the running direction being sensed and compared with a setpoint value, and the result of the comparison being entered in the position control of at least one of the conveyors (3), characterized in that the position of the strip of material (7), the result of the comparison and/or the output signal of the controller (15) is stored, with the stored signal acting on the position control of the conveyor (3) at the earliest when the next strip of material (7) is fed in by the same conveyor.

### Claim 2 (depends on 1)

Method according to claim 1, characterized in that the result of the comparison is fed to a controller (15), the output signal of which is entered in the position control.

### Claim 3 (depends on 2)

Method according to claim 2, characterized in that the controller (15) has P, PI or PID action.

### Claim 4 (depends on 3)

Method according to claim 3, characterized in that the controller (15) is digitally realized, the cycle of the conveyor (3) being used as the clock of the controller (15).

### Claim 5

Tyre building machine comprising a rotatable drum (2), to which strips of material (7) that can be transported to the drum (2) by means of conveyors (3) can be applied, the run of the strips of material (7) transversely in relation to the running direction being sensed by at least one first sensor (9), which is in operative connection with a position controlling device, with at least one second sensor (16), which is in operative connection with the position controlling device (12) and senses the position of the strip of material (7) transversely in relation to the running direction, being provided in the region of the drum (2), characterized in that the at least one second sensor (16) is in operative connection with first storing means (30), which are in operative connection on the output side with at least one multiplexer (29), which feeds the stored signals to storing means (30) that are assigned to the conveyors (3) and the stored signals of which act on the position control of the conveyor (3) at the earliest when the next strip of material (7) is fed in by the same conveyor.

### Claim 6 (depends on 5)

Tyre building machine according to claim 5, characterized in that the at least one first sensor (9) and/or second sensor (16) sense(s) a longitudinal bordering edge (10) and/or marking (11) of the strip of material (7).

### Claim 7 (depends on 5, 6)

Tyre building machine according to claim 5 or 6, characterized in that the storing means (30) are influenced by the conveying cycle (37) of the conveyor (3).

### Claim 8 (depends on 5, 6, 7)

Tyre building machine according to at least one of claims 5 to 7, characterized in that the at least one second sensor (16) is in operative connection with at least one digital controller (31), the clock of which is derived from the cycle (37) of the conveyor (3).