NL2027276A

NL2027276A - Peeler for peeling a liner from a stock tire component and stock cassette comprising said peeler

Info

Publication number: NL2027276A
Application number: NL2027276A
Authority: NL
Inventors: Hendrik Zweers Evert
Original assignee: Vmi Holland Bv
Priority date: 2020-01-07
Filing date: 2021-01-06
Publication date: 2021-08-30
Also published as: CN213413242U; GR2003194Y; RS63971B1; RS20210839A1; NL2027276B1; HRUM20210001U2

Abstract

The invention relates to a peeler (1, 101, 201) for‘ peeling' a liner‘ (B) fronl a stock tire component (A) during unwinding of said stock tire component (A) from a stock reel (F) and a stock cassette (300) comprising said peeler (1, 101, 201). The peeler (1) comprises a plurality of rollers (R1—R6) for guiding the stock tire component (A) and the liner (B) from the stock reel (F) along a stock path (S) and a liner path (L), respectively, wherein the plurality of rollers (R1—R6) comprises a separation roller (R4) at a separation position (Q) where the liner path (L) permanently separates from the stock path (S), wherein the peeler (1) further comprises a drive member (R5) that is coupled. to the separation roller (R4) for rotating the separation roller (R4) faster than the other rollers (R1— R3, R5, R6) of the plurality of rollers (R1—R6).

Description

P137659NL01 Peeler for peeling a liner from a stock tire component and stock cassette comprising said peeler

BACKGROUND The invention relates to a peeler for peeling a liner from a stock tire component, i.e, a side wall strip, during unwinding of said stock tire component from a stock reel. The invention further relates to a stock cassette comprising said peeler.

A known peeler comprises a plurality of rollers for guiding the stock tire component and the liner from the stock reel along a stock path and a liner path, respectively. The stock path and the liner path separate at a separation position. Downstream of the separation position the stock path connects to a let off station which guides the stock tire component further into a tire component servicer or tire component production device. The liner path terminates a liner reel that collects the separated liner,

SUMMARY OF THE INVENTION A disadvantage of the known peeler is that the stock tire component does not always separate from the liner and thus has the tendency to be pulled together with the liner from the stock path onto the liner path downstream of the separation position. If this is not noticed immediately, the stock tire component will be wound onto the liner reel together with the liner and the outfeed or supply to the let off station will be interrupted.

It is an object of the present invention to provide a peeler and a stock cassette comprising said peeler, wherein the liner and the stock tire component can be separated more reliably.

According Lo a first aspect, the invention provides a peeler for peeling a liner from a stock tire component during unwinding of said stock tire component from a stock reel, wherein the peeler comprises a plurality of rollers for guiding the stock tire component and the liner from the stock reel along a stock path and a liner path, respectively, wherein the plurality of rollers comprises a separation roller at a separation position where the liner path permanently separates from the stock path, wherein the peeler further comprises a drive member that is coupled to the separation roller for rotating the separation roller at a higher circumferential speed than the other rollers of the plurality of rollers.

By rotating the separation roller at a higher circumferential speed than the other rollers of the plurality of rollers, a speed difference can be created between the stock tire component at the separation position. The speed difference can prevent that the stock tire component sticks to the separation roller and is pulled into the liner path together with the liner.

Preferably, the plurality of rollers comprises a drive roller, wherein the drive member is the drive roller, wherein the peeler comprises a transmission member for transmitting rotation of said drive roller to the separation roller in a transmission ratio of more than one revolution of the separation roller for each revolution of the drive roller. By using one of the other rollers as the drive member, there is no need for a dedicated or additional drive member. In particular, the other rollers are rotated or driven in rotation as a result of the liner and/or the stock tire component passing by. Moreover, because the other rollers are automatically rotated when the liner and/or the stock tire component are pulled through the peeler, there is no need for a control unit or the like to control the rotational speed of the other rollers. Hence, the separation roller can be driven in rotation by said one other roller in response Lo the pulling of the liner and/or the stock tire component through the peeler.

In one embodiment, the transmission member is a belt. A belt is an effective means of transmitting rotation from one rotating object to another rotatable object.

In an embodiment thereof the belt is arranged around the drive roller at a first diameter and around the separation roller at a second diameter, wherein the first diameter is larger than the second diameter. Hence, a transmission ratio can be obtained in which one revolution of the drive roller corresponds to more than one revolution of the separation roller.

In a further embodiment thereof the drive roller and the separation roller each have a main roller body with a third diameter that is the same for the drive roller and the separation roller, wherein the drive roller comprises a pulley extending at the first diameter for fitting the belt. By increasing the diameter of the drive roller locally at the pulley, the aforementioned transmission ratio can be obtained.

In a preferred embodiment thereof the third diameter is equal to the second diameter. The belt can thus engage the separation roller at the same diameter as the main roller body.

In an alternative embodiment, the drive roller and the separation roller each have a main roller body with a third diameter that is the same for the drive roller and the separation roller, wherein the said one other roller comprises a pulley extending at the second diameter for fitting the belt. By decreasing the diameter of the separation roller locally at the pulley, the aforementioned transmission ratio can be obtained.

Preferably, the third diameter is equal to the first diameter. The belt can thus engage the drive roller at the same diameter as the main roller body.

In another embodiment the drive roller is last to guide the liner along the liner path at the separation position. The drive roller can thus be driven by the passing of the liner along said drive roller. Hence, the circumferential speed of the drive roller can be equal to conveyance speed of the liner.

In another embodiment the separation roller is first to define the stock path directly downstream of the separation position. In other words, the separation roller is the first roller of the plurality of rollers that solely guides the stock tire component along the stock path, separately from the liner. Hence, the separation roller is arranged for contacting the stock tire component directly, i.e. without the liner in between. The separation roller can thus effectively accelerate the stock tire component independently of the liner and thereby generate a speed difference between the stock tire component and the liner.

In another embodiment the drive roller and the separation roller form a pair of rollers, wherein the liner path crosses between the pair of rollers and the stock path passes along the same side of the pair of rollers. The liner path and the stock path can thus be effectively separated at the pair of rollers.

In a further alternative embodiment the transmission member comprises a gear train with at least two meshing gears. A gear train can provide an effective alternative to the previously discussed belt. By choosing a suitable gear ratio, the aforementioned transmission ratio can be obtained.

In another embodiment the plurality of rollers further comprises a set of peeler rollers for peeling the liner from the stock tire component at a peeling position upstream of the separation position, wherein the liner and the stock tire component are rejoined between the peeler position and the separation position. The set of peeler rollers can already loosen or substantially detach the stock tire component from the liner prior to or in preparation for the actual separation of the stock tire 5 component from the liner at the separation position.

In another embodiment the drive roller and separation roller are mutually parallel. Hence, the transmission member can transmit the rotation between the drive roller and the separation roller in a single plane perpendicular to the roller axes.

According toe a second aspect, the invention provides a stock cassette comprising the peeler according to the first aspect of the invention. The stock cassette can be inserted into or received in a let off station for the tire component servicer or a tire component production device. The peeler can be arranged on the stock cassette to feed the stock tire component to the let off station and to collect the liner on a liner reel.

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 stock cassette with a peeler according to a first exemplary embodiment of the invention; figure 2 shows an isometric view of the peeler according to figure 1; figure 3 shows an isometric view of an alternative peeler according to a second exemplary embodiment of the invention; and figure 4 shows a side view of a part of a further alternative peeler according to a third exemplary embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION Figure 1 shows a stock cartridge or stock cassette 300 for insertion into a let off station (not shown) of a tire component production device (not shown). The stock cartridge 300 comprises a stock reel F and a liner reel G. The stock reel ¥ holds a plurality of windings of a strip-like stock tire component A, i.e. a side wall or a run-flat reinforcement strip. Each winding is separated by a liner B that to keep the windings from adhering to each other. The stock reel F and the liner reel G cooperate in a manner known per se to unwind the stock tire component A from the stock reel F while collecting the liner B on the liner reel G. Typically, the liner reel G is actively driven to pull the liner B in and wind up said liner B onto the liner reel G. The stock cartridge 300 comprises a separation device or a peeler 1, for peeling and ultimately separating the liner B from the stock tire component A during unwinding of said stock tire component A from the stock reel F. In particular, the peeler 1 is located in a location between the stock reel F and the liner reel G. Once the liner B is separated from the stock tire component A, the separated liner B is retumed towards and collected or wound onto liner reel G, while the separated stock tire component A is fed out of the stock cartridge 300 in an outfeed direction Z towards the let off station (not shown). The let off station may be provided with a dancer roller to control the speed at which the stock tire component A is fed into the let off station.

As shown in figures 1 and 2, the peeler 1 comprises a plurality of rollers R1-R6 for guiding the stock tire component A and the liner B from the stock reel F along a stock path S and a liner path L, respectively.

Preferably, the rollers R1-R6 are rotatable about respective roller axes X1-X6 which are mutually parallel.

The plurality of rollers Rl-R6 comprises a set of peeler rollers R1-R3 for peeling the liner B from the stock tire component A at a peeling position P.

Here, the liner B is peeled from the stock tire component A and then rejoined again with said stock tire component A.

The peeling prepares the liner B for separation later in the peeler 1. More specifically, the set of peeler rollers RI1- R3 comprises a first peeler roller Rl, a second peeler roller R2 and a third peeler roller R3 that together form a loop in the liner path L.

When setting vp the stock cassette 300, an operator manually guides the liner B through the loop, while the stock tire component A is guided directly from the first peeler roller Rl to the third peeler roller RS.

The liner B is separated from the stock tire component A at the first peeler roller R1 and rejoined with said stock tire component A at the third peeler roller R3. The plurality of rollers R1-R6 further comprises a drive roller R4 and a separation roller Rb for permanently separating the stock tire component A from the liner B.

Specifically, the drive roller R4 is located at a separation position Q, downstream of the peeler position P, where the stock path S and the liner path L permanently separate and the separation roller R5 is located downstream or directly downstream of said separation position Q.

More in particular, the drive roller R4 is last to guide the liner B along the liner path L at the separation position Q.

In other words, the drive roller R4 defines both the liner path L and the stock path S and supports or guides both the liner B and the stock tire component A.

In contrast, the separation roller R5 is first to define the stock path S directly downstream of the separation position Q. More in particular, the separation roller R5 defines the stock path S separately or independently from the liner path L. In other words, the separation roller RL only defines the stock path S and supports or guides the stock tire component A only.

As a result the drive roller R4 and the separation roller R5 form a pair of rollers R4, R5, wherein the liner path L crosses between the pair of rollers R4, RD and the stock path S passes along the same side of the pair of rollers R4, R5, thereby effectively separating the stock tire component A from the liner B. The plurality of rollers R1-R6 further comprises a return roller R6 for returning the liner B to the liner reel G. In particular, the liner B is separated from the stock tire component A at the drive roller R4 and then guided directly to the return roller R6, away from the stock path S. The drive roller R4 acts as a drive member that is coupled or connected to the separation roller R5 for rotating the separation roller RS faster than the other rollers R1-R4, R6 of the plurality of rollers RI-R6. As a result, the separation roller R5 can pull on the stock tire component A at greater speed than the drive roller R4 that guides the liner B, thereby creating or generating a speed difference between the stock tire component A and the liner B at the separation position Q. The drive roller R4 is rotated automatically as a result of the friction between the liner B and the drive roller R4 as the liner B is actively pulled in towards the liner reel G of figure 1. Hence, the circumferential speed of the drive roller R4 is equal or substantially equal to the speed at which the liner B is pulled towards the liner reel G. To connect the drive roller R4 to the separation roller R5, the peeler 1 comprises a transmission member 4. The transmission member 4 is arranged for transmitting rotation of the drive roller R4 to the separation roller

R5. In this exemplary embodiment, the transmission member 4 is a wire or a belt 40. As shown in figure 2, the belt 40 is arranged around the drive roller R4 at a first diameter D1 and around the separation roller R5 at a second diameter DZ, wherein the first diameter D1 is larger than the second diameter D2. Hence, a transmission ratio can be obtained in which each revolution of the drive roller R4 results in more than one revolution of the separation roller R5. The transmission ratio between the drive roller R4 and the separation roller R5 may for example be 1:1.1, meaning that the separation roller RS rotates 1.1 (one and one-tenth) revolution for each revolution of the drive roller R4. Note that in this example, the drive roller R4 and the separation roller R5 each have a main roller body 2 with a third diameter D3. In particular, the main roller body 2 has a main circumferential surface, cylindrical surface or guiding surface 20 extending at the third diameter D3 for guiding the stock tire component A and/or the liner B.

The third diameter D3 is the same for the drive roller R4 and the separation roller R5. In other words, the guiding surfaces 20 of the drive roller R4 and the separation roller RL are of equal diameter.

To provide the first diameter D1 and the second diameter D2 at the drive roller R4 and the separation roller R5, respectively, the diameter of the drive roller R4 can be locally increased or enlarged and/or the diameter of the separation roller RS can be locally decreased or reduced.

In this exemplary embodiment, the drive roller R4 is provided with a pulley 3 extending at the first diameter D1 for fitting the belt 40. The pulley 3 may be mounted around the main roller body 2 of the drive roller Rb, i.e. in an annular manner, or it may be an attachment or extension of the main roller body 2 axially at one of the sides of the drive roller R4. The pulley 3 may be provided with a groove or ridge to more securely receive and/or retain the belt 40. In the embodiment as shown in figure 2, the belt

40 extends or runs around the main roller body 2 of the separation roller R5. Hence, in this particular case, the second diameter D2 is equal to the third diameter D3. Alternatively, a further pulley (not shown) may be provided at the separation roller R5 to receive the belt 40 at the second diameter D2. In that case, the second diameter D2 may be larger than the third diameter D3, as long as it is smaller than the first diameter Dl. Alternatively, the separation roller R5 may be provided with a groove or recess (not shown) to receive the belt 40 within the third diameter D3. Hence, the second diameter DZ may also be smaller than the third diameter D3 to further increase the aforementioned transmission ratio.

Figure 3 shows an alternative peeler 101 according to a second embodiment of the invention that differs from the previously discussed peeler 1 in that, instead of the drive roller R4, it is now the separation roller R5 that is provided with or comprises a pulley 103 extending at the second diameter D2 for fitting the belt

40. The pulley 103 is smaller than the guiding surface 20 of the separation roller RL extending at the third diameter and may therefore be recessed with respect to said guiding surface 20. The pulley 103 may also be an integral part of the separation roller R53, i.e. a neck-like portion, or formed as an extension of the separation roller RS axially at one of the sides.

The belt 40 may then be fitted around the drive roller R4 at the third diameter D3, in which case the third diameter D3 would be equal to the first diameter DL.

Alternatively, the pulley 3 as shown in figure 2 may be applied to the drive roller R4 to further increase the aforementioned transmission ratio.

Figure 4 shows a part of a further alternative peeler 201 according to a third embodiment of the invention, which differs from the previously discussed peelers 1, 101 in that the transmission member 204 is formed by or comprises a gear train 240. The gear train 240 comprises at least two meshing gears 241, 242, i.e. a first gear 241 that is connected to the drive roller R4 and a second, smaller gear 242 that is connected to the separation roller R5. Hence, a similar transmission ratio can be obtained. Further gears (not shown) may be added to further increase the transmission ratio.

It will be clear to one skilled in the art that other mechanical means for transmitting rotation from the drive roller R4 to the separation roller RS may be envisioned, like a toothed belt or a chain, with the same or similar technical effect.

It will also be clear to one skilled in the art that any one of the other rollers RI1I-R3, R6 of the plurality of rollers R1-R6 may act as the drive member, provided that the chosen roller is automatically driven in rotation by the passing liner B at the speed required to obtain a transmission ratio at which the separation roller R5 rotates faster than the other rollers R1-R4, R6 around it.

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 peeler 2 main roller body 20 guiding surface 3 pulley 4 transmission member 40 belt 101 alternative peeler 103 pulley

201 further alternative peeler 204 transmission member 240 gear train 241 first gear

242 second gear 300 stock cassette A stock tire component B liner D1 first diameter

D2 second diameter D3 third diameter ¥ stock reel G liner reel L liner path

P peeling position Q separation position R1-R3 peeler rollers R4 drive roller / drive member RS separation roller

R06 return roller X1-X6 roller axes S stock path Z out feed direction

Claims

CONCLUSIONS

A peeler for peeling a liner from a supply of tire component during unwinding of the supply of tire component from a supply reel, the peeler comprising a plurality of rollers for guiding the supply of tire component along a supply path and a liner path, respectively, the plurality of which of rolls includes a separation roll downstream of a separation position where the liner web permanently separates from the supply web, the peeler further comprising a drive member coupled to the separation roll for rotating the separation roll faster than the other rolls of the plurality of rolls.

The peeler according to claim 1, wherein the plurality of rollers comprises a drive roller, the driving portion being the driving roller, the peeler including a transfer portion for transmitting rotation of the driving roller to the separation roller in a gear ratio of more than one revolution of the separation roller for each revolution of the drive roller.

Peeler according to claim 2, wherein the transmission part is a belt.

The peeler of claim 3, wherein the belt is arranged around the drive roller at a first diameter and around the separation roller at a second diameter, the first diameter being greater than the second diameter.

The peeler according to claim 4, wherein the driving roller and the separating roller each have a main body with a third diameter that is the same for the driving roller and the separating roller, the driving roller comprising a wheel extending on the first diameter for positioning the belt .

The peeler of claim 5, wherein the third diameter is equal to the second diameter.

The peeler according to claim 4, wherein the driving roller and the separating roller each have a main body with a third diameter that is the same for the driving roller and the separating roller, the one other roller including a wheel extending on the second diameter for disposing of the belt.

The peeler of claim 7, wherein the third diameter is equal to the first diameter.

The peeler of claim 2, wherein the drive roller is the last to guide the liner along the liner path at the separation position.

The peeler of claim 1, wherein the separation roller is the first to define the supply path immediately downstream of the separation position.

The peeler of claim 2, wherein the drive roller and the separation roller form a pair of rollers, the liner track intersecting between the pair of rollers and the supply track and the liner track passing along the same side of the roller pair.

The peeler of claim 2, wherein the transmission member comprises a gear train having at least two meshing gears.

The peeler of claim 1, wherein the plurality of rolls further comprises a set of peeling rolls for peeling the liner from the supply of tire component at a peeling position upstream of the separation position, wherein the liner and supply of tire component are reassembled between the peeling position and the said stripping position. separation position.

The peeler of claim 2, wherein the drive roller and the separation roller are parallel to each other.

A supply cassette comprising the peeler of claim 1.

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