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NL2034452B1 - Tire building apparatus and method for forming a tire component - Google Patents

Tire building apparatus and method for forming a tire component Download PDF

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Publication number
NL2034452B1
NL2034452B1 NL2034452A NL2034452A NL2034452B1 NL 2034452 B1 NL2034452 B1 NL 2034452B1 NL 2034452 A NL2034452 A NL 2034452A NL 2034452 A NL2034452 A NL 2034452A NL 2034452 B1 NL2034452 B1 NL 2034452B1
Authority
NL
Netherlands
Prior art keywords
relative movement
strip
drum
stroke
unit
Prior art date
Application number
NL2034452A
Other languages
Dutch (nl)
Inventor
Tielenburg Niels
Martinus Hubertus Dekker Henk
Johan Van Voskuilen Cees
Doppenberg Evert
Mulder Gerrit
Kofoed Bart
Hendrik Van Der Rhee Dirk
Wouteres Janszen Cornelis
Original Assignee
Vmi Holland Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vmi Holland Bv filed Critical Vmi Holland Bv
Priority to NL2034452A priority Critical patent/NL2034452B1/en
Priority to CN202480001355.4A priority patent/CN119053437A/en
Priority to PCT/NL2024/050110 priority patent/WO2024205397A1/en
Application granted granted Critical
Publication of NL2034452B1 publication Critical patent/NL2034452B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D30/3028—Applying the layers; Guiding or stretching the layers during application by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B29D30/30—Applying the layers; Guiding or stretching the layers during application
    • B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
    • B29D2030/3078—Details, accessories and auxiliary operations not otherwise provided for the layers being applied being substantially continuous, i.e. not being cut before the application step

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

The invention relates to a tire building apparatus and a method for forming a tire component, wherein. the tire building‘ apparatus comprises a drum, a strip feeding unit and. an sensor* unit, wherein. the tire 5 building apparatus is provided with a first drive for generating a first relative movement between the strip feeding unit and the drum along a stroke in a first stroke direction parallel to a central axis, wherein the tire building apparatus further comprises a second drive for generating' a second. relative movement between. the sensor unit and the drum in the first stroke direction along the stroke, wherein the tire building apparatus comprises a control unit that is operationally connected to the first drive and the second drive to control the first relative movement and. the second. relative movement such. that the sensor unit trails the strip feeding unit in the first stroke direction for at least a part of the stroke.

Description

P141858NLOO
Tire building apparatus and method for forming a tire component
BACKGROUND
The invention relates to a tire building apparatus and a method for forming a tire component.
In a known tire building apparatus, material is applied on a drum and profile data is obtained by an array of multiple stationary cameras arranged side-by-side in an axial direction of the drum. The cameras have overlapping field-of-views to cover the entire width of the drum.
Alternatively, a single stationary camera may be placed at a distance significantly further away from the drum to capture the entire width of said drum at once.
SUMMARY OF THE INVENTION
A disadvantage of the known tire building apparatus is that the width of the drum is too large to be covered with a single camera, unless said single camera is spaced apart sufficiently, which single camera then requires a very high resolution to maintain sufficient detail. Such high-resolution cameras are usually very expensive. When using multiple cameras, the images obtained with said cameras need to be stitched together to form a complete image across the width of the drum. The stitching of the images can result in inaccuracies or aberrations.
Moreover, using multiple cameras also adds to the overall costs of the known tire building apparatus.
It is an object of the present invention to provide a tire building apparatus and a method for forming a tire component, wherein the performance of the tire building apparatus can be improved and/or complexity or costs of the tire building apparatus can be reduced.
According to a first aspect, the invention provides a tire building apparatus for forming a tire component, wherein the tire building apparatus comprises a drum that is rotatable about a central axis, an strip feeding unit for feeding a strip in a plurality of windings onto the drum in a winding direction about the central axis, and an sensor unit for obtaining data about a profile of the strip on the drum, wherein the tire building apparatus is provided with a first drive for generating a first relative movement between the strip feeding unit and the drum along a stroke in a first stroke direction parallel to the central axis, wherein the tire building apparatus further comprises a second drive for generating a second relative movement between the sensor unit and the drum in the first stroke direction along the stroke, wherein the tire building apparatus comprises a control unit that is operationally connected to the first drive and the second drive to control the first relative movement and the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction for at least a part of the stroke.
By generating the second relative movement in the first stroke direction, between the sensor unit and the drum, the sensor unit can be moved along the drum to capture or obtain data about the profile of the strip shortly after it has been applied to the drum. In particular, as the strip is typically wound using partially overlapping windings, the sensor unit can capture or obtain data about the profile of the strip before it is partially covered by the next winding. Hence, accurate data can be obtained about the profile of the strip in each individual winding. Moreover, a relatively small and/or inexpensive sensor unit can be used that is able to capture only a small or local area of the drum in relatively high detail, in contrast to the array of multiple stationary cameras or a single stationary camera in the known tire building apparatus that require a relatively high resolution to cover the entire drum area with similarly high detail.
Hence, the accuracy of the tire building apparatus according to the present invention can be improved or at least maintained while reducing complexity and/or costs.
In addition, it has been found that the accuracy of the data can be further improved when the sensor unit is not located directly after the strip feeding unit, but in a sensor position further downstream of the strip feeding unit in the winding direction where the strip has had time to cool down, expand, contract, settle and/or to generally conform to its application position on the drum. However, when the strip reaches the downstream sensor position, the strip feeding unit may already have moved in the first stroke direction to apply the next winding of the strip.
Hence, to keep the sensor unit aligned with the strip in the downstream sensor position, the sensor unit can be moved independently of the strip feeding unit and, as such, can be made to follow or trail the strip feeding unit for at least a part of the stroke, thereby compensating for the downstream sensor position and/or improving alignment between the sensor unit and the strip at the sensor position.
Preferably, the control unit is configured to control the first relative movement and the second relative movement asynchronously for at least a part of the stroke.
In other words, although the relative movements may have the same direction and/or magnitude, the second relative movement can be delayed in time relative to the first relative movement to take into account that the part of the strip to be captured reaches the downstream sensor position after said delay.
In a further embodiment the sensor unit is positioned in a sensor position at an offset angle from the strip feeding unit in the winding direction, wherein the control unit is configured to control the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction taking into account a rotational delay of the drum rotating over said offset angle. The strip reaches the sensor position depending on how long it takes the drum to rotate over the offset angle.
Hence, the alignment between the sensor unit and the strip can be further improved by taking into account the rotation delay of the drum.
It is noted that the offset angle of the sensor position of the sensor unit in itself may also be claimed independently of the features relating to the drives, the control unit and the trailing of the sensor unit relative to the strip feeding unit.
In a preferred embodiment thereof the second relative movement is controlled based on one or more parameters representative of: an angular position of the drum, a rotational velocity of the drum, the offset angle and/or application position values of the strip relative to the drum derived from a computer simulation of the strip.
It will be appreciated that there are many ways to control the second relative movement such that the sensor unit is kept aligned with the strip as much as possible, including but not limited to using the parameters as specified above.
Said parameters may be based on real-time feedback of the tire building apparatus and/or on computer models or simulations.
In another embodiment the control unit is configured to control the first relative movement such that the strip transitions from a first winding to a second winding in a transition area on the drum, wherein the control unit is further configured to control the second relative movement such that the sensor unit remains aligned with the strip in the transition area. The strip may change direction in the transition area relatively quickly as a result of the first relative movement of the strip feeding unit that occurred earlier. The second relative movement may be controlled so as to follow the first relative movement at the appropriate time to keep the sensor unit 5 aligned with the strip in said transition area, thereby improving the accuracy of the data on the profile of the strip in said transition area.
In another embodiment the strip feeding unit comprises an extruder for extruding the strip, wherein the extruder comprises a die having a die width that defines a width of the strip, wherein the control unit is configured to control the first relative movement and the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction over a trailing distance that is equal to or smaller than one- hundred-and-ten percent of the die width, preferably equal to or less than the die width and most preferably equal to or less than sixty percent of the die width, for at least a part of the stroke. As mentioned before, the strip is typically applied to the drum in partially overlapping windings. Depending on the amount of the overlap between the windings, the sensor unit can be made to trail behind the extruder at the specified trailing distance to remain aligned with the strip in the winding that was applied prior to the winding that is currently being applied by the strip feeding unit.
In another embodiment the first relative movement and the second relative movement are stepped. Hence, the strip can be transitioned quickly between windings, while the sensor unit can be moved quickly to follow said transition as it arrives at the sensor position.
In another embodiment the control unit is configured to control the first relative movement and the second relative movement such that the sensor unit catches up with the strip feeding unit in the first stroke direction for at least a part of the stroke. In particular, when the part of the strip that reaches the sensor position transitions to the winding that is currently being applied by the strip feeding unit, then the sensor unit may catch up with the strip feeding unit until the strip feeding unit transitions the strip to a subsequent winding.
In another embodiment the first drive is arranged for generating a third relative movement between the strip feeding unit and the drum along the stroke in a second stroke direction, opposite to the first stroke direction, wherein the second drive is arranged for generating a fourth relative movement between the sensor unit and the drum along the stroke in the second stroke direction, wherein the control unit is configured for controlling the third relative movement and the fourth relative movement such that the sensor unit trails the strip feeding unit in the second stroke direction for at least a part of the stroke. Hence, the relative movements can be reversed when the strip feeding unit starts applying a new layer of windings over a previous layers of windings in the opposite, second stroke direction.
Preferably, the sensor unit, at reversal of the strip feeding unit from the first relative movement to the third relative movement, is configured to pass the strip feeding unit in the first stroke direction. By passing the sensor unit along the strip feeding unit, the sensor unit
Can assume a position at the other side of the strip feeding unit compared to where it was prior to said passing.
In a specific embodiment the offset angle is within an offset range of one-hundred-and-eighty degrees to three-hundred-and-sixty degrees. At said offset angle, the strip has had sufficient time to cool down, expand, contract, settle and/or to generally conform to its application position on the drum. Hence, when capturing or obtaining data about the profile of the strip in the sensor position at said offset angle, the data is more representative of how the strip is ultimately incorporated into the tire component to be formed and/or the accuracy of
: the data can be significantly improved.
In a specific embodiment the offset range has an upper endpoint of equal to or less than three-hundred-and- forty degrees, and preferably equal to or less three- hundred degrees. By limiting the upper endpoint of the offset range, it can be prevented that the sensor unit is placed too close to the strip feeding unit a full revolution downstream in the winding direction.
In a further specific embodiment the offset range has a lower endpoint of at least two-hundred degrees, and preferably at least tworhundred-and-forty degrees. By limiting the lower endpoint of the offset range, the amount of time that the strip has to cool down, expand, contract, settle and/or to generally conform to its application position on the drum can be optimized.
In another embodiment the sensor unit is provided with one or more elements of the group comprising: a laser, an imaging device, an optical camera, a photodetector and a line scanner. Any of the aforementioned elements can be used, either alone or in combination, to capture or obtain data about the profile of the strip, for example data about a height profile or a cross-sectional shape of the strip.
According to a second aspect, the invention provides a method for winding a strip to form a tire component using a tire building apparatus according to any one of the embodiment of the first aspect of the invention, wherein the method comprises the steps of: - extruding the strip onto the drum in the winding direction while rotating the drum about the central axis; - generating the first relative movement; - generating the second relative movement; - controlling the first relative movement and the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction for at least a part of the stroke; and - obtaining data about the profile of the strip on the drum.
The method relates to the practical implementation of the tire building apparatus according to the first aspect of the invention and therefore has the same technical advantages, which will not be repeated hereafter.
In a preferred embodiment the method further comprises the step of: - controlling the first relative movement and the second relative movement asynchronously for at least a part of the stroke.
In a further embodiment the sensor unit is positioned in a sensor position at an offset angle from the strip feeding unit in the winding direction, wherein the method further comprises the step of: - controlling the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction taking into account a rotational delay of the drum rotating over said offset angle.
Preferably, the rotational delay is based on a calculation using one or more parameters representative of: an angular position of the drum, a rotational velocity of the drum, the offset angle and/or application position values of the strip relative to the drum derived from a computer simulation of the strip.
In another embodiment the method further comprises the steps of: - controlling the first relative movement such that the strip transitions from a first winding to a second winding in a transition area on the drum; and - controlling the second relative movement such that the sensor unit remains aligned with the strip in the transition area.
In another embodiment the strip feeding unit comprises an extruder for extruding the strip, wherein the extruder comprises a die having a die width that defines a width of the strip, wherein the method further comprises the step of: - controlling the first relative movement and the second relative movement such that the sensor unit trails the strip feeding unit in the first stroke direction over a trailing distance that is equal to or smaller than one-hundred-and-ten percent of the die width, preferably equal to or less than the die width and most preferably equal to or less than sixty percent of the die width, for at least a part of the stroke.
In another embodiment of the method the first relative movement and the second relative movement are stepped.
In another embodiment the method further comprises the step of: - controlling the first relative movement and the second relative movement such that the sensor unit catches up with the strip feeding unit in the first stroke direction for at least a part of the stroke.
In another embodiment the first drive is arranged for generating a third relative movement between the strip feeding unit and the drum along the stroke in a second stroke direction, opposite to the first stroke direction, wherein the second drive 1s arranged for generating a fourth relative movement between the sensor unit and the drum along the stroke in the second stroke direction, wherein the method further comprises the steps of: - generating the third relative movement; - generating the fourth relative movement; - controlling the third relative movement and the fourth relative movement such that the sensor unit trails the strip feeding unit in the second stroke direction for at least a part of the stroke; and - obtaining data about the profile of the strip on the drum.
Preferably, the method further comprises the step of: - controlling the sensor unit, at reversal of the strip feeding unit from the first relative movement to the third relative movement, to pass the strip feeding unit in the first stroke direction.
The various aspects and features described and shown in the specification can be applied, individually, wherever possible. These individual aspects, in particular the aspects and {features described in the attached dependent claims, can be made subject of divisional patent applications.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be elucidated on the basis of an exemplary embodiment shown in the attached schematic drawings, in which: figure 1 shows a side view of a tire building apparatus with a drum, an extruder and a sensor unit according to the invention; figures 2A-2D show cross sections of the tire building apparatus according to figure 1 during the steps of a method for forming a tire component; and figure 3 shows a front view of the tire building apparatus according to {figure 1, further showing a transition area between windings.
DETAILED DESCRIPTION OF THE INVENTION
Figure 1 shows a tire building apparatus 1 according to the present invention for forming a tire component for a green or unvulcanized tire through a process known as ‘strip-winding'’. The tire building apparatus 1 may alternatively be used to form a tire component on an existing tire, for example when forming a tread on an existing tire during a process called ‘retreading’.
The tire building apparatus 1 comprises a drum 2 that is rotatable about a central axis X. The drum 2 has a cylindrical circumferential surface for directly or indirectly supporting the tire component as it is being formed.
The tire building apparatus 1 further comprises a strip feeding unit 3 for supplying and/or feeding a strip 9 in a plurality of windings Wl, W2, ..., Wn, as shown in figures 2A-2D, towards and/or onto the drum 2. In this example, the strip feeding unit 3 comprises an extruder 31 that extrudes the strip ¢ towards the drum 2 in an extruder position E. In this example, the extruder position E lies in a horizontal plane coinciding with the central axis X.
The strip 9 is made of an elastomeric material, in particular rubber. As shown in figure 2A, the extruder 31 has a die 32 with a die width D that defines the initial width of the strip 9. Note that the strip 9 may be subject to die swell, causing the cross sectional area of the strip 9 to expand slightly after leaving the extruder 31.
Between the drum 2 and the extruder 31, one or more intermediate feeding members 33, such as a festooner, an applicator roller, and/or a stitcher roller, may be provided, known per se, to supply, feed and/or apply the strip 9 towards and/or onto the drum 2.
As shown in figure 1, the drum 2 is rotated while the strip 9 is being applied, causing said strip 9 to be applied in a winding direction W about the central axis X.
The windings Wl, W2, ..., Wn may be applied directly onto the circumferential surface of the drum 2, or alternatively on previously applied layers of the same or another tire component.
As shown in figure 1, the tire building apparatus 1 is provided with a sensor unit 4 for capturing or obtaining data about a profile of the strip on the drum 2.
In particular, the sensor unit 4 is arranged, adapted, programmed and/or configured for obtaining, retrieving or capturing data about a cross-sectional shape, a contour and/or a height profile of the strip 9. In this example, the sensor unit 4 comprises a laser 41 for projecting a laser line onto the strip 9 at a sensor position P and an optical sensor 42, for example an optical camera, that is focused at or has its optical axis aligned with the aforementioned sensor position P to obtain images of the strip 9, including the projected laser line, at said sensor position P. Preferably, the laser 41 and the optical camera 42 are positioned at an oblique angle to each other for laser triangulation purposes.
Alternatively, the skilled person will appreciate that the sensor unit 4 may comprise any other sensing or detecting means to enable it to obtain data about the shape, cross-section, contour and/or profile of the strip on the drum, using a selection of elements of the group comprising, but not limited to: a laser, an imaging device, an optical camera, a photodetector and a line scanner.
As best seen in figure 1, the sensor position P is located at an offset angle B from the strip feeding unit 3 and/or the strip feeding unit position E in the winding direction W. The offset angle B is preferably chosen within an offset range R of one-hundred-and-eighty degrees to three-hundred-and-sixty degrees from the strip feeding unit position E in the winding direction W. More preferably, the offset range R has an upper endpoint of equal to or less than three-hundred-and-forty degrees, most preferably, equal to or less three-hundred degrees. Alternatively, the offset range R has a lower endpoint of at least two-hundred degrees, most preferably, at least two-hundred-and-forty degrees. By positioning the sensor unit 4 at said sensor position P located downstream of the strip feeding unit position E over a sufficient offset angle B, the strip 3 has had time to cool down, expand, contract, settle and/or to generally conform to its application position on the drum 2. Hence, any measurements taken {from the data obtained at said sensor position P may more accurately reflect the actual condition of the strip 9 on the drum 2.
As shown in figure 24, the tire building apparatus 1 is further provided with a first drive 51, for example a servo motor or a spindle drive, for generating a first relative movement Ml between the strip feeding unit 3 and the drum 2. In this example, the first drive 51 is coupled to and/or interacts with the drum 2 to move the drum 2 relative to the strip feeding unit 3. In other words, the strip feeding unit 3 remains stationary.
Alternatively, the strip feeding unit 3 may be moved while the drum 2 remains stationary. The first relative movement
M1 is generated along a trajectory or stroke S in a first stroke direction S1 parallel to the central axis X. The first relative movement Ml may be gradual and/or constant, for example when the strip 9 is applied in helical windings wi, W2, .e., Wn with a constant pitch along their respective lengths. In this particular embodiment however, the first relative movement Ml is generated in steps to quickly or abruptly transition the strip 9 from one winding
Wl to the next winding W2. This causes the windings Wl, W2, 20 ..., Wn to extend in a non-helical manner, apart from a relatively sharp transition in a relatively small transition area T along the circumference of the drum 2.
As further shown in figure 2A, the tire building apparatus 1 comprises a second drive 52, for example a servo motor or a spindle drive, for generating a second relative movement M2 between the sensor unit 4 and the drum 2. The second relative moment M2 is controlled, in manner that will be discussed in more detail hereafter, to be in the same first stroke direction S1 as the first relative movement M1 along the stroke S for most of said stroke S.
In this example, the second drive 52 is coupled to and/or interacts with the sensor unit 42 to move said sensor unit 42 relative to the drum 2 and/or relative to the strip feeding unit 3.
The tire building apparatus 1 is further provided with a third drive 53, in particular a rotational drive, to drive the rotation of the drum 2 about its central axis X.
The tire building apparatus 1 may further be provided with an encoder 55 for feeding back information about the rotational and/or angular position of the drum 2 about the central axis X.
Optionally, the tire building apparatus 1 may comprise a fourth drive 54 for generating a relative movement between the sensor unit 42 and the drum 2 in a height direction Z to adjust for a different diameter of the drum 2 or for added thickness of previously applied layers on the drum 2. In this example, the height direction
Zz has at least a component in a radial direction perpendicular to the central axis Xx, and preferably extends in said radial direction.
As shown in figure 2A, the tire building apparatus 1 comprises a control unit 6 that is functionally, electronically and/or operationally connected to the drives 51-53 and the encoder 55 to control the movements of the drum 2, the strip feeding unit 3 and/or the sensor unit 4, in particular the first relative movement M1 and the second relative movement M2.
A method for forming a tire component using the aforementioned tire building apparatus 1 will now be elucidated with reference to figures 1, 2A-2D and 3.
As shown in figure 1, the strip 9 is being fed by the strip feeding unit 3 to the drum 2 at the feeding position F. As mentioned earlier, between the drum 2 and the extruder 31, one or more intermediate feeding members 33, such as a festooner, an applicator roller, and/or a stitcher roller, may be provided, known per se, to supply, feed and/or apply the strip 9 towards and/or onto the drum 2. Simultaneously, the drum is being rotated in the winding direction W to take on the strip 3.
Figure 2A shows the situation in which the control unit © has controlled the drives 51, 52, 53 so as to generate the first relative movement M1 between the drum 2 and the strip feeding unit 3 in the first stroke direction S1, while the drum 2 is being rotated about the central axis X. As a result, two windings Wl, W2 have already been applied and a further winding Wn is being applied. Note that the windings Wl, Wz, ..., Wn are applied in a partially overlapping configuration.
When each winding Wl, W2, ..., Wn is almost completed, the control unit 6 controls the first drive 51 to generate the first relative movement M1 in the first stroke direction S1, thereby transitioning the strip 9 from one winding to the next winding. As the next winding is already being applied, the sensor unit 4 is still obtaining data on the profile of the strip 9 in the previous winding.
Therefore, the control unit 6 is arranged, adapted, programmed and/or configured to control the second relative movement M2 in such a way that the sensor unit 4 trails the strip feeding unit 3 in the first stroke direction S1 for at least a part of the stroke S. In other words, the sensor unit 4 may remain aligned with the strip 9 in the previous winding independently of the strip feeding unit 3 and the drum 2 which may already be cooperating to wind the next winding.
More in particular, the control unit 6 may control the second drive 52 such that the second relative movement M2 is the same or similar to the first relative movement Ml, yet it is made to occur asynchronously, i.e. at a later moment in time.
Specifically, the control unit 6 may be arranged, adapted, programmed and/or configured to take into account a rotational delay of the drum 3 rotating over the offset angle B of the sensor unit 4 with respect to the strip feeding unit 3, for example based on encoder signals from the encoder 55 and/or drive data from the third drive 53.
Alternatively, the rotational delay may be calculated based on a computer simulation of application of the strip 9 on the drum 2.
In one embodiment of the method, the control unit 6 is arranged, adapted, programmed and/or configured for controlling the second relative movement M2 such that the sensor unit 4 remains aligned with the strip 9 in the transition area T, as shown in figure 3. In other words, when the strip 9 is transitioned from one winding to the next, the sensor unit 4 is moved in the same way or in a similar way to the first relative movement between the drum 2 and the strip feeding unit 3, yet with a delay such that the second relative movement M2 is generated at the time when the transition of the strip 9 in the transition area T of figure 3 has arrived at the sensor position P.
For a short period in time, corresponding to the length of the windings Wl, W2, ..., Wn for which the sensor unit 4 has already been moved relative to the strip feeding unit 3 and the strip feeding unit 3 has not yet moved relative to the drum 2 to the next winding Wn, the sensor unit 4 and the strip feeding unit 3 may be aligned and/or in the same position, considered in the first stroke direction S1. In other words, the sensor unit 4 may briefly catch up with the strip feeding unit 3 during each winding
Wl, W2, ..., Wn.
Note that the trailing distance Y may be chosen to be equal to or smaller than one-hundred-and-ten percent of the die width D, preferably equal to or less than the die width and most preferably equal to or less than sixty percent of the die width D, for at least a part of the stroke S. Hence, depending on the amount of overlap between subsequent windings Wl, W2, ..., Wn, the sensor unit 4 may trail the strip feeding unit 3 with a similar amount, thereby keeping the strip 9 in focus in the winding that is currently passing along the sensor unit 4.
Figure 2B shows the situation in which further windings Wn have been applied to the drum 2, while the sensor unit 4 trails the strip feeding unit 3 in the manner as described above with each further winding Wn that is being applied.
Figure 2C shows the situation in which a last winding Wn of a first layer L1 of windings Wl, W2, ..., Wn is being applied onto the drum 2. After completing the first layer L1, the relative movement between the drum 2 and the strip feeding unit 3 will be reversed to start building a second layer L2 of windings Wn on the first layer L1 of windings, as shown in figure 2D.
However, it is noted that, at some point during the reversal, the second relative movement M2 which still has to be performed may cause the sensor unit 4 to catch up and/or pass the position of the strip feeding unit 3 in the first stroke direction S1, as reflected by the absence of the trailing distance Y in figure 2C.
Figure 2D shows the situation in which the first relative movement Ml of figures 2A, 2B has been reversed into a third relative movement M3 between the drum 2 and the strip feeding unit 3 in a second stroke direction 52 opposite to the first stroke direction S1, to built a second layer L2 of windings Wn on the first layer L1 of windings Wl, W2, ..., Wn. Similarly, the second relative movement M2 of figures 2A-2C has now been reversed into a fourth relative movement M4 in the second stroke direction
S52, which fourth relative movement M4 is controlled in a similar way to the second relative movement M2 such that the sensor unit 4 again trails the strip feeding unit 3, but now in the second stroke direction S2. In other words, the sensor unit 4 now trails the strip feeding unit 3 at another side of the said strip feeding unit 3. In said trailing position, the sensor unit 4 may continue to focus on the strip 9 in the second to last winding compared to the last winding Wn that is currently being applied.
It is to be understood that the above description is included to illustrate the operation of the preferred embodiments and is not meant to limit the scope of the invention. From the above discussion, many variations will be apparent to one skilled in the art that would yet be encompassed by the scope of the present invention.
LIST OF REFERENCE NUMERALS
1 tire building apparatus 2 drum 3 strip feeding unit 31 extruder 32 die 33 intermediate feeding member 4 sensor unit 41 laser 42 optical camera 51 first drive 52 second drive 53 third drive 54 fourth drive 55 encoder 6 control unit 9 strip 101 alternative tire building apparatus 153 third drive
A axial direction
B offset angle
C circumferential direction
D die width
F feeding position
FOV field-of-view
Ll first layer
L2 second layer
M1 first relative movement
M2 second relative movement
M3 third relative movement
M4 fourth relative movement
P sensor position
R offset range
S stroke
S1 first stroke direction
S2 second stroke direction
T transition area
W winding direction
WI first winding
W2 second winding
X central axis
Y trailing distance
Z height direction

Claims (26)

CONCLUSIESCONCLUSIONS 1. Bandenbouwapparaat (1) voor het vormen van een bandcomponent, waarbij het bandenbouwapparaat (1) een trommel (2) omvat die roteerbaar is rond een centrale hartlijn (X), een strip aanvoereenheid (3) voor het aanvoeren van een strip (9) in een meervoud aan wikkelingen (Wl, WZ) aan de trommel (2) in een wikkelrichting (W) rond de centrale hartlijn (X), en een sensoreenheid (4) voor het verkrijgen van data over een profiel van de strip op de trommel (2), waarbij het bandenbouwapparaat (1) voorzien is van een eerste aandrijving (51) voor het genereren van een eerste relatieve beweging (M1) tussen de strip aanvoereenheid (3) en de trommel (2) langs een slag (5) in een eerste slagrichting {S1) evenwijdig aan de centrale hartlijn (X), waarbij het bandenbouwapparaat (1) verder een tweede aandrijving (52) omvat voor het genereren van een tweede relatieve beweging (M2) tussen de sensoreenheid (4) en de trommel (2) in de eerste slagrichting {51) langs de slag (SS), waarbij het bandenbouwapparaat (1) een regeleenheid (6) omvat welke operationeel verbonden is met de eerste aandrijving (51) en de tweede aandrijving (52) voor het regelen van de eerste relatieve beweging (M1) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de eerste slag richting (81) volgt voor ten minste een deel van de slag (S).1. A tire building apparatus (1) for forming a tire component, the tire building apparatus (1) comprising a drum (2) rotatable about a central axis (X), a strip feeding unit (3) for feeding a strip (9) in a plurality of windings (W1, WZ) to the drum (2) in a winding direction (W) about the central axis (X), and a sensor unit (4) for obtaining data on a profile of the strip on the drum (2), the tire building apparatus (1) comprising a first drive (51) for generating a first relative movement (M1) between the strip feeding unit (3) and the drum (2) along a stroke (5) in a first stroke direction (S1) parallel to the central axis (X), the tire building apparatus (1) further comprising a second drive (52) for generating a second relative movement (M2) between the sensor unit (4) and the drum (2) in the first stroke direction {51) along the stroke (SS), the tire building apparatus (1) comprising a control unit (6) operatively connected to the first drive (51) and the second drive (52) for controlling the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) follows the strip feeding unit (3) in the first stroke direction (81) for at least a portion of the stroke (S). 2. Bandenbouwapparaat (1) volgens conclusie 1, waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de eerste relatieve beweging (Ml) en de tweede relatieve beweging (MZ) op asynchrone wijze voor ten minste een deel van de slag.The tire building apparatus (1) according to claim 1, wherein the control unit (6) is configured to control the first relative movement (M1) and the second relative movement (MZ) asynchronously for at least a part of the stroke. 3. Bandenbouwapparaat (1) volgens conclusie 1 of 2, waarbij de sensoreenheid (4) gepositioneerd is in een sensorpositie (P) onder een offset-hoek (B) van de strip aanvoereenheid (3) in de wikkelrichting (W), waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de eerste slagrichting (81) volgt rekening houdend met een rotatievertraging van de trommel (3) roterend over de offset-hoek (B).The tire building apparatus (1) according to claim 1 or 2, wherein the sensor unit (4) is positioned in a sensor position (P) at an offset angle (B) of the strip feeding unit (3) in the winding direction (W), the control unit (6) being configured to control the second relative movement (M2) such that the sensor unit (4) follows the strip feeding unit (3) in the first stroke direction (81) taking into account a rotational deceleration of the drum (3) rotating through the offset angle (B). 4. Bandenbouwapparaat (1) volgens conclusie 3, waarbij de tweede relatieve beweging (M2) geregeld wordt op basis van één of meer parameters representatief voor: een hoekpositie van de trommel (2), een rotatiesnelheid van de trommel (2), de offset-hoek (B) en/of aanbrengpositiewaardes van de strip (9) ten opzichte van de trommel (2) afgeleid uit een computersimulatie van de strip (9).4. A tire building apparatus (1) according to claim 3, wherein the second relative movement (M2) is controlled based on one or more parameters representative of: an angular position of the drum (2), a rotational speed of the drum (2), the offset angle (B) and/or application position values of the strip (9) relative to the drum (2) derived from a computer simulation of the strip (9). 5. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de eerste relatieve beweging (M1) zodanig dat de strip (9) overgaat van een eerste wikkeling naar een tweede wikkeling in een transitiegebied (T) op de trommel (2), waarbij de regeleenheid (6) verder geconfigureerd is voor het regelen van de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) uitgelijnd blijft met de strip (9) in het transitiegebied (T).5. A tire building apparatus (1) according to any preceding claim, wherein the control unit (6) is configured to control the first relative movement (M1) such that the strip (9) transitions from a first winding to a second winding in a transition area (T) on the drum (2), the control unit (6) further configured to control the second relative movement (M2) such that the sensor unit (4) remains aligned with the strip (9) in the transition area (T). 6. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de strip aanvoereenheid (3) een extruder (31) omvat voor het extruderen van de strip (9), waarbij de extruder (31) een matrijs (32) omvat met een matrijsbreedte (D) die een breedte van de strip (9) bepaalt, waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de eerste relatieve beweging (Ml) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de eerste slagrichting (S1) volgt over een volgafstand (Y) welke gelijk is aan of kleiner is dan één-honderd-en-tien procent van de matrijsbreedte (D), bij voorkeur gelijk aan of kleiner dan de matrijsbreedte en bij meeste voorkeur gelijk aan of kleiner dan zestig procent van de matrijsbreedte (D}), voor ten minste een deel van de slag (5).6. A tire building apparatus (1) according to any preceding claim, wherein the strip feed unit (3) comprises an extruder (31) for extruding the strip (9), the extruder (31) comprising a die (32) having a die width (D) defining a width of the strip (9), the control unit (6) being configured to control the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) follows the strip feed unit (3) in the first stroke direction (S1) over a tracking distance (Y) equal to or less than one hundred and ten percent of the die width (D), preferably equal to or less than the die width and most preferably equal to or less than sixty percent of the die width (D}), for at least a portion of the stroke (5). 7. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de eerste relatieve beweging7. Tire building machine (1) according to any one of the preceding claims, wherein the first relative movement (Ml) en de tweede relatieve beweging (M2) stapsgewijs zijn.(Ml) and the second relative motion (M2) are stepwise. 8. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de eerste relatieve beweging (Ml) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) bijhaalt in de eerste slagrichting (S51) voor ten minste een deel van de slag {S).8. A tire building machine (1) according to any preceding claim, wherein the control unit (6) is configured to control the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) catches up with the strip feeding unit (3) in the first stroke direction (S51) for at least a part of the stroke (S). 9. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de eerste aandrijving (51) gerangschikt is voor het genereren van een derde relatieve beweging (M3) tussen de strip aanvoereenheid (3) en de trommel {2} langs de slag (S) in een tweede slagrichting (S2), tegenovergesteld aan de eerste slagrichting (S1), waarbij de tweede aandrijving (52) gerangschikt is voor het genereren van een vierde relatieve beweging (M4) tussen de sensoreenheid (4) en de trommel (2) langs de slag (S) in de tweede slagrichting (32), waarbij de regeleenheid (6) geconfigureerd is voor het regelen van de derde relatieve beweging (M3) en de vierde relatieve beweging (M4) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de tweede slagrichting (S2) volgt voor ten minste een deel van de slag (S).9. A tire building apparatus (1) according to any preceding claim, wherein the first drive (51) is arranged to generate a third relative movement (M3) between the strip feeding unit (3) and the drum {2} along the stroke (S) in a second stroke direction (S2) opposite to the first stroke direction (S1), the second drive (52) is arranged to generate a fourth relative movement (M4) between the sensor unit (4) and the drum (2) along the stroke (S) in the second stroke direction (32), the control unit (6) being configured to control the third relative movement (M3) and the fourth relative movement (M4) such that the sensor unit (4) follows the strip feeding unit (3) in the second stroke direction (S2) for at least a part of the stroke (S). 10. Bandenbouwapparaat (1) volgens conclusie 9, waarbij de sensoreenheid (4), bij een omkering van de strip aanvoereenheid (3) van de eerste relatieve beweging (M1) naar de derde relatieve beweging (M3), geconfigureerd is voor het passeren van de strip aanvoereenheid (3) in de eerste slagrichting (S1).The tire building apparatus (1) according to claim 9, wherein the sensor unit (4), upon a reversal of the strip feeding unit (3) from the first relative movement (M1) to the third relative movement (M3), is configured to pass the strip feeding unit (3) in the first stroke direction (S1). 11. Bandenbouwapparaat (1) volgens conclusie 3 of 4, waarbij de offset-hoek (B) binnen een offset-bereik (R) van één-honderd-en-tachtig graden tot drie-honderd-en-zestig graden gelegen is.11. Tire building apparatus (1) according to claim 3 or 4, wherein the offset angle (B) is within an offset range (R) of one hundred and eighty degrees to three hundred and sixty degrees. 12. Bandenbouwapparaat (1) volgens conclusie 11, waarbij het offset-bereik (R) een bovenste eindpunt heeft dat gelijk aan of kleiner dan drie-honderd-en-veertig graden is.12. The tire building machine (1) according to claim 11, wherein the offset range (R) has an upper end point equal to or less than three hundred and forty degrees. 13. Bandenbouwapparaat (1) volgens conclusie 11,13. Tire building machine (1) according to claim 11, waarbij het offset-bereik (R) een bovenste eindpunt heeft dat gelijk aan of kleiner dan driehonderd graden is.where the offset range (R) has an upper endpoint equal to or less than three hundred degrees. 14. Bandenbouwapparaat (1) volgens conclusie 11, waarbij het offset-bereik (R) een laagste eindpunt heeft dat gelijk aan of groter dan tweehonderd graden is.14. The tire building machine (1) according to claim 11, wherein the offset range (R) has a lowest end point equal to or greater than two hundred degrees. 15. Bandenbouwapparaat (1) volgens conclusie 11, waarbij het offset-bereik (R) een laagste eindpunt heeft dat gelijk aan of groter dan twee-honderd-en-veertig graden is.15. The tire building apparatus (1) of claim 11, wherein the offset range (R) has a lowest end point equal to or greater than two hundred and forty degrees. 16. Bandenbouwapparaat (1) volgens een der voorgaande conclusies, waarbij de sensoreenheid (4) is voorzien van één of meer elementen uit de groep omvattend: een laser, een beeldvormingsapparaat, een optische camera, een fotodetector, en een lijnscanner.16. Tire building machine (1) according to any one of the preceding claims, wherein the sensor unit (4) comprises one or more elements from the group comprising: a laser, an imaging device, an optical camera, a photodetector, and a line scanner. 17. Werkwijze voor het wikkelen van een strip voor het vormen van een bandcomponent gebruikmakend van een bandenbouwapparaat volgens een der voorgaande conclusies, waarbij de werkwijze de stappen omvat van: - het extruderen van de strip (9) op de trommel (2) in de wikkelrichting (W) tijdens het roteren van de trommel (2) rond de centrale hartlijn (S}; - het genereren van de eerste relatieve beweging (M1); - het genereren van de tweede relatieve beweging (M2) ; - het regelen van de eerste relatieve beweging (Ml) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) volgt in de eerste slagrichting (S81) voor ten minste een deel van de slag (5); en - het verkrijgen van data over het profiel van de strip op de trommel (2).17. A method of winding a strip for forming a tire component using a tire building apparatus according to any preceding claim, the method comprising the steps of: - extruding the strip (9) onto the drum (2) in the winding direction (W) while rotating the drum (2) about the central axis (S}; - generating the first relative movement (M1); - generating the second relative movement (M2); - controlling the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) follows the strip feeding unit (3) in the first stroke direction (S81) for at least a part of the stroke (5); and - obtaining data on the profile of the strip on the drum (2). 18. Werkwijze volgens conclusie 17, waarbij de werkwijze verder de stap omvat van: - het regelen van de eerste relatieve beweging (M1) en de tweede relatieve beweging (M2) op asynchrone wijze voor ten minste een deel van de slag (S).18. A method according to claim 17, wherein the method further comprises the step of: - controlling the first relative movement (M1) and the second relative movement (M2) in an asynchronous manner for at least a portion of the stroke (S). 19. Werkwijze volgens conclusie 17 of 18, waarbij de sensoreenheid (4) gepositioneerd is in een sensorpositie (P) onder een offset-hoek (B) van de strip aanvoereenheid (3) in de wikkelrichting (W), waarbij de werkwijze verder de stap omvat van: - het regelen van de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de eerste slagrichting (S1) volgt rekening houdend met een rotatievertraging van de trommel (3) roterend over de offset-hoek (B).19. Method according to claim 17 or 18, wherein the sensor unit (4) is positioned in a sensor position (P) at an offset angle (B) of the strip feed unit (3) in the winding direction (W), the method further comprising the step of: - controlling the second relative movement (M2) such that the sensor unit (4) follows the strip feed unit (3) in the first stroke direction (S1) taking into account a rotational deceleration of the drum (3) rotating through the offset angle (B). 20. Werkwijze volgens conclusie 19, waarbij de rotatievertraging gebaseerd is op een berekening gebruikmakend van één of meer parameters representatief voor: een hoekpositie van de trommel (2), een rotatiesnelheid van de trommel (2), de offset-hoek (B) en/of aanbrengpositiewaardes van de strip (9) ten opzichte van de trommel (2) afgeleid uit een computersimulatie van de strip20. Method according to claim 19, wherein the rotational delay is based on a calculation using one or more parameters representative of: an angular position of the drum (2), a rotational speed of the drum (2), the offset angle (B) and/or application position values of the strip (9) relative to the drum (2) derived from a computer simulation of the strip (3).(3). 21. Werkwijze volgens een der conclusies 17-20, waarbij de werkwijze verder de stappen omvat van: - het regelen van de eerste relatieve beweging (M1) zodanig dat de strip (9) overgaat van een eerste wikkeling naar een tweede wikkeling in een transitiegebied (T) op de trommel (2); en - het regelen van de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) uitgelijnd blijft met de strip (9) in het transitiegebied (T).21. A method according to any one of claims 17 to 20, wherein the method further comprises the steps of: - controlling the first relative movement (M1) such that the strip (9) transitions from a first winding to a second winding in a transition area (T) on the drum (2); and - controlling the second relative movement (M2) such that the sensor unit (4) remains aligned with the strip (9) in the transition area (T). 22. Werkwijze volgens een der conclusies 17-21, waarbij de strip aanvoereenheid (3) een extruder (31) voor het extruderen van de strip (9) omvat, waarbij de extruder (31) een matrijs (32) omvat hebbend een matrijsbreedte (D) welke een breedte van de strip (9) definieert, waarbij de werkwijze verder de stap omvat van: - het regelen van de eerste relatieve beweging (M1) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de eerste slagrichting (S1) volgt over een volgafstand (Y) welke gelijk is aan of kleiner is dan één-honderd-en-tien procent van de matrijsbreedte (D), bij voorkeur gelijk is aan of kleiner is dan de matrijsbreedte en bij meeste voorkeur gelijk is aan of kleiner is dan zestig procent van de matrijsbreedte (D), voor ten minste een deel van de slag (S).22. A method according to any one of claims 17 to 21, wherein the strip feed unit (3) comprises an extruder (31) for extruding the strip (9), the extruder (31) comprising a die (32) having a die width (D) defining a width of the strip (9), the method further comprising the step of: - controlling the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) follows the strip feed unit (3) in the first stroke direction (S1) over a tracking distance (Y) equal to or less than one hundred and ten percent of the die width (D), preferably equal to or less than the die width and most preferably equal to or less than sixty percent of the die width (D), for at least a portion of the stroke (S). 23. Werkwijze volgens een der conclusies 17-22, waarbij de eerste relatieve beweging (Ml) en de tweede relatieve beweging (M2) stapsgewijs zijn. 24, Werkwijze volgens een der conclusies 17-23, waarbij de werkwijze verder de stap omvat van: - het regelen van de eerste relatieve beweging (M1) en de tweede relatieve beweging (M2) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) bijhaalt in de eerste slagrichting (S1) voor ten minste een deel van de slag23. Method according to any one of claims 17 to 22, wherein the first relative movement (M1) and the second relative movement (M2) are stepwise. 24. Method according to any one of claims 17 to 23, wherein the method further comprises the step of: - controlling the first relative movement (M1) and the second relative movement (M2) such that the sensor unit (4) catches up with the strip feed unit (3) in the first stroke direction (S1) for at least a part of the stroke. (5).(5). 25. Werkwijze volgens een der conclusies 17-24, waarbij de eerste aandrijving (51) gerangschikt is voor het genereren van een derde relatieve beweging (M3) tussen de strip aanvoereenheid (3) en de trommel (2) langs de slag (S) in een tweede slagrichting (52), tegenovergesteld aan de eerste slagrichting (S1), waarbij de tweede aandrijving (52) ingericht is voor het genereren van een vierde relatieve beweging (M4) tussen de sensoreenheid (4) en de trommel (2) langs de slag (S) in de tweede slagrichting (S22), waarbij de werkwijze verder de stappen omvat van: - het genereren van de derde relatieve beweging (M3); - het genereren van de vierde relatieve beweging (M4) ; - het regelen van de derde relatieve beweging (M3) en de vierde relatieve beweging (M4) zodanig dat de sensoreenheid (4) de strip aanvoereenheid (3) in de tweede slagrichting (S2}) volgt voor ten minste een deel van de slag (S); en - het verkrijgen van data over het profiel van de strip op de trommel (2).25. A method according to any one of claims 17 to 24, wherein the first drive (51) is arranged to generate a third relative movement (M3) between the strip feed unit (3) and the drum (2) along the stroke (S) in a second stroke direction (52) opposite to the first stroke direction (S1), the second drive (52) being arranged to generate a fourth relative movement (M4) between the sensor unit (4) and the drum (2) along the stroke (S) in the second stroke direction (S22), the method further comprising the steps of: - generating the third relative movement (M3); - generating the fourth relative movement (M4); - controlling the third relative movement (M3) and the fourth relative movement (M4) such that the sensor unit (4) follows the strip feed unit (3) in the second stroke direction (S2}) for at least a part of the stroke (S); and - obtaining data on the profile of the strip on the drum (2). 26. Werkwijze volgens conclusie 25, waarbij de werkwijze verder de stap omvat van:26. The method of claim 25, wherein the method further comprises the step of: - het regelen van de sensoreenheid (4), bij omkering van de strip aanvoereenheid (3) van de eerste relatieve beweging (M1) naar de derde relatieve beweging (M3), teneinde de strip aanvoereenheid (3) in de eerste slagrichting (S1) te passeren. -0-0-0-0-0-0-0-0-- controlling the sensor unit (4), upon reversal of the strip feed unit (3) from the first relative movement (M1) to the third relative movement (M3), in order to pass the strip feed unit (3) in the first stroke direction (S1). -0-0-0-0-0-0-0-0-
NL2034452A 2023-03-29 2023-03-29 Tire building apparatus and method for forming a tire component NL2034452B1 (en)

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PCT/NL2024/050110 WO2024205397A1 (en) 2023-03-29 2024-03-07 Tire building apparatus and method for forming a tire component

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2782749A1 (en) * 2011-11-21 2014-10-01 Pirelli Tyre S.p.A. Method of controlling the movement of tyre building members in a process for manufacturing tyres for vehicle wheels
EP3554820A1 (en) * 2016-12-16 2019-10-23 Pirelli Tyre S.p.A. Method for checking a continuous elongated element during the building of a tyre for vehicle wheels and apparatus for building a tyre for vehicle wheels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2782749A1 (en) * 2011-11-21 2014-10-01 Pirelli Tyre S.p.A. Method of controlling the movement of tyre building members in a process for manufacturing tyres for vehicle wheels
EP3554820A1 (en) * 2016-12-16 2019-10-23 Pirelli Tyre S.p.A. Method for checking a continuous elongated element during the building of a tyre for vehicle wheels and apparatus for building a tyre for vehicle wheels

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