Patent Description:
The tire casing is then typically inspected for injuries, some of which may be skived and filled with a repair gum while others may be severe enough to warrant rejection of the casing. Next, a layer of cushion gum may be applied to the back, i.e., the inside surface of a new layer of tread, or alternatively, the layer of cushion gum may be applied directly to the tacky surface on the tire casing. Conventionally, the cushion gum is a layer of uncured rubber material. The cushion gum and tread may be applied in combination about the circumference of the tire casing to create a retreaded tire assembly for curing. As an alternative, a length of tire tread may be wrapped around the tire casing with the cushion gum already applied. The cushion gum may form the bond between the tread and the tire casing during curing.

Cushion gum presents unique challenges in packaging, handling, and shipping because cushion gum is a volatile, uncured adhesive material. For example, cushion gum may cure to itself during shipping due to high temperatures, high pressures, or both. Sometimes, cushion gum may be crushed during transportation, which may affect throughput, resulting in additional cost to reimburse and rework affected cushion gum. Thus, there exists a desire for a method and system for packaging cushion gum that results in few instances of damaged work product. <CIT> is directed at an automatic taking-up of a long member that is enabled to reduce man-hour etc., needed for take-up operation to improve the productivity in the production of the long member. A take-up device of <CIT> for a long member includes a take-up reel, rotation driving means that rotates the take-up reel, guide means that guides the long member, and a control unit that performs control of the entire device. An insertion portion of <CIT> into which the end portion of the long member can be inserted is formed in the core member of the take-up reel. Rotation of the take-up reel of <CIT> is controlled by the control unit to set the opening of the insertion portion at a predetermined position. The end portion of the long member of <CIT> is guided toward that position by the guide means, and the end portion is inserted through the insertion portion. Then, the take-up reel of <CIT> is rotated to take up the long member on the core member. <CIT> is directed at a strip component that is carried by a liner into a storage spool having spiral grooved flanges for edges of the liner which are guided into the grooves by guide rods which do not interfere with the transporting of the strip component into and out of the spool.

The claimed invention is defined by the features of independent claim <NUM>. Additional embodiments are defined by the features of dependent claims. According to a first set of embodiments, a method of forming a gum roll is provided. The method includes providing a strip stock having a first end, a first surface, and a second surface opposite to the first surface. The first end is coupled to a core fixture so the first surface interfaces with the core fixture. The core fixture is rotated to wind the strip stock onto the core fixture such that the first surface interfaces with the second surface to form the gum roll. And the strip stock is cut to form the second end when the gum roll is wound to an outer roll diameter, the outer roll diameter being greater than a diameter of the core fixture.

According to a second set of embodiments, a skid assembly is provided. The skid assembly includes a skid having a stacking surface, a first gum roll positioned on the stacking surface; and a second gum roll positioned on the first gum roll.

According to a third set of embodiments, a skid assembly is provided. The skid assembly includes a skid having a stacking surface and a first film sheet positioned on the stacking surface. The skid assembly further includes a first gum roll positioned on the first film sheet and forming a first skid layer. Positioned on the first skid layer may be a second film sheet. A second gum roll is positioned on the second film sheet and on the first gum roll.

According to a fourth set of embodiments, a skid assembly is provided. The skid assembly includes a skid having a stacking surface, a first gum roll positioned on the stacking surface, and a second gum roll positioned on the stacking surface and abutting the first gum roll. The first gum roll and the second gum roll cooperate to define a first skid layer. The skid assembly further includes a third gum roll positioned on one of the first gum roll or the second gum roll and a fourth gum roll positioned on one of the second gum roll or the second gum roll such that the fourth gum roll abuts the third gum roll. The fourth gum roll and the third gum roll cooperate to form a second skid layer.

By way of example only, other embodiments of the present disclosure will be described more filly hereinafter with reference to the accompanying figures, in which like numbers refer to like parts throughout, wherein:.

Following below are more detailed descriptions of various concepts related to, and implementations of, packaging a cushion gum for use in retreading a tire. The various concepts introduced above and discussed in greater detail below may be implemented in any of a number of ways, as the described concepts are not limited to any particular manner of implementation of the present invention. Examples of specific implementations and applications are provided primarily for illustrative purposes.

Tires are used in various applications and under a variety of circumstances. Some tires may be designed to withstand the forces of a landing aircraft. Some tires may be designed to provide extra grip on surfaces covered in snow and ice. Some tires may be manufactured to be more suited to be repairable and retreaded.

In some instances, it may be desirable to use an uncured or unvulcanized rubber adhesive (e.g., cushion gum, highly dispersible precipitated silicas (HDSS), liquid adhesive, etc.) to bind (e.g., couple, vulcanize, adhere, etc.) a precured tire tread to a tire casing.

The uncured rubber adhesive may be formed into long adhesive strips approximately <NUM>,<NUM> (<NUM> inches) thick, <NUM>,<NUM> (<NUM> inches) wide, and <NUM>,<NUM> (<NUM> feet) long. However, it should be understood that other dimensions, including slight manufacturing variations in the disclosed dimensions, are possible. For example, the adhesive strips may vary in width and thickness along the length of the adhesive strip. In some embodiments, the adhesive strips are formed into a substantially continuous length. In some embodiments, the adhesive strips are cut from a large sheet of adhesive.

After the adhesive strip is formed, the adhesive strip is packaged, such as for shipping to a manufacturing facility that retreads tires. The adhesive strips may be packaged in a box having individual cells that receive lengths of the adhesive strip, folded over upon itself as the adhesive strip is fed into the cell.

In some embodiments, the adhesive strip is rolled up, forming a cushion gum roll. Four cushion gum rolls may be laid flat on a pallet or skid to form a skid layer. Multiple skid layers may be positioned on a single skid or pallet. A film or buffer may be positioned between each of the skid layers. In some embodiments, the cushion gum rolls are "naked," meaning that the cushion gum rolls are not wrapped in a film, and that no separators or barriers are positioned between the cushion gum rolls of the same skid layer. Once the skid includes the desired number of skid layers (e.g., <NUM>, <NUM>, <NUM>, <NUM>, etc.), the skid may be skid wrapped.

In some embodiments, the cushion gum rolls may be individually wrapped in a film such that a skid layer includes four individually-wrapped cushion gum rolls. In some embodiments, the skid includes a top roll, positioned on top of the top skid layer to at least one of discourage or prevent stacking another skid on top of the cushion gum rolls.

Referring to <FIG>, a gum roll (e.g., cushion gum roll, adhesive roll, etc.) <NUM> is shown, according to an example embodiment. The gum roll <NUM> defines a generally annular body having a first side <NUM>, a second side <NUM> substantially parallel to and opposite the first side <NUM>, an inner roll surface <NUM>, an outer roll surface <NUM>, an inner roll diameter <NUM>, an outer roll diameter <NUM>, a roll thickness <NUM>, and a center axis CA. In some embodiments, the gum roll <NUM> substantially defines an Archimedean spiral. The inner roll diameter <NUM> may be between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. In some embodiments, the inner roll diameter <NUM> is approximately <NUM>,<NUM> (<NUM> inches). The outer roll diameter <NUM> may be between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches). In some embodiments, the outer roll diameter <NUM> is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches). In some embodiments, the outer roll diameter <NUM> is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. For example, the outer roll diameter <NUM> may be approximately <NUM>,<NUM> (<NUM> inches). In some embodiments, the outer roll diameter <NUM> is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. For example, the outer roll diameter <NUM> may be approximately <NUM>,<NUM> (<NUM> inches). In some embodiments, the outer roll diameter <NUM> is greater than <NUM>,<NUM> (<NUM> inches). In some embodiments, the outer roll diameter <NUM> is sized to fit on a skid or pallet. For example, the outer roll diameter <NUM> may be approximately equal to the size of the skid or pallet such that no portion of the gum roll <NUM> extends over the edge of the skid or pallet. The roll thickness <NUM> is defined as a distance between the first side <NUM> and the second side <NUM>. The roll thickness <NUM> may vary across the entirety of the gum roll <NUM>.

The central axis CA is defined as the central axis of the inner roll surface <NUM>. The inner roll surface <NUM> may define a substantially circular cross-section such that the central axis CA extends through a center of the substantially circular cross-section. In some embodiments, the outer roll surface <NUM> defines a substantially circular cross-section and the central axis CA is also the central axis of the outer roll surface <NUM>. The gum roll <NUM> is formed from a strip stock <NUM>, such as a strip stock of cushion gum, adhesive, rubber cement, highly dispersed precipitated silica (HDSS), or a similar material. The strip stock <NUM> may be pre-formed before being wound into the gum roll <NUM>. For example, a strip stock <NUM> of HDSS may be manufactured and stored on a storage roll for a period of time (e.g., minutes, hours, days, weeks, etc.) before being unwound from the storage roll and wound into the gum roll <NUM>. In some embodiments, the gum roll <NUM> is formed as part of the manufacturing processes for the strip stock <NUM>. For example, a sheet of HDSS (e.g., sheet stock, etc.) is formed, cut into the strip stock <NUM>, and wound into the gum roll <NUM>. This avoids the additional steps of winding the strip stock <NUM> onto a roller for storage, and then unwinding the roll at a later time to form the gum roll <NUM>.

The strip stock <NUM> includes a first surface <NUM> and a second surface <NUM> opposite the first surface <NUM> and substantially parallel to the first surface <NUM>. A distance between the first surface <NUM> and the second surface <NUM> is shown as a stock thickness <NUM>. The stock thickness <NUM> may be less than <NUM>,<NUM> (<NUM> inches). In some embodiments, the stock thickness <NUM> is less than one inch. In some embodiments, the stock thickness <NUM> is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. The HDSS, and thus the strip stock <NUM>, may be pliable, malleable, and formable such that the stock thickness <NUM> varies across the entirety of the strip stock <NUM>.

Referring now to <FIG>, the strip stock <NUM> is shown being wound into the gum roll <NUM>. The strip stock further includes a first edge <NUM> and a second edge <NUM> opposite to the first edge <NUM>. A distance between the first edge <NUM> and the second edge <NUM> is shown as a stock width <NUM>. The stock width <NUM> may be between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. In some embodiments, the stock width <NUM> is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches), inclusive. Similar to the stock thickness <NUM>, the stock width <NUM> may vary between the first edge <NUM> and the second edge <NUM> along a length of the strip stock <NUM> due to manufacturing tolerances and the pliability of the HDSS. In some embodiments, the stock thickness <NUM> and the stock width <NUM> may be out of tolerance with the desired manufacturing tolerances.

Referring again to <FIG>, the strip stock <NUM> further includes a first end <NUM> and a second end <NUM>. The first end <NUM> and the second end <NUM> are separated by a distance, referred to herein as a stock length. The stock length is defined as the shortest distance between the first end <NUM> and the second end <NUM> along a continuous, unbroken line that lies on the first surface <NUM>. This is in contrast to the absolute distance between the first end <NUM> and the second end <NUM>, shown in <FIG> as being less than the outer roll diameter <NUM> (e.g., approximately one-half the outer roll diameter <NUM> minus one-half of the inner roll diameter <NUM>). The stock length may be less than <NUM>,<NUM> (<NUM> feet). For example, the stock length maybe between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> feet). In some embodiments, the stock length is greater than <NUM>,<NUM> (<NUM> feet), e.g. <NUM>,<NUM> (<NUM> feet), <NUM>,<NUM> (<NUM> feet), <NUM>,<NUM> (<NUM> feet), etc..

In some embodiments, the gum roll <NUM> includes a structural support core <NUM> extending along the central axis CA and interfacing with the inner roll surface <NUM>. The structural support core <NUM> may be formed of cardboard or a similar disposable material that provides support for a single gum roll <NUM>. In some embodiments, the structural support core <NUM> is solid and substantially rigid such that the sides of the structural support core <NUM> can withstand large forces without compressing or deforming. In some embodiments, the structural support core <NUM> is a spring core, or a cylindrical sleeve that has a hollow center and is configured to be compressed during insertion and removal. In some embodiments, the structural support core <NUM> is formed of plastic, metal, wood, or a similar material such that the structural support core <NUM> may be reused for multiple gum rolls. In some embodiments, the gum roll <NUM> is coreless, meaning that the gum roll <NUM> does not include a structural support (e.g., the structural support core <NUM>) positioned proximate to the inner roll surface <NUM>. When a gum roll <NUM> is coreless, the inner roll surface <NUM> (e.g., the first surface <NUM> proximate to the first end <NUM>) is exposed to the atmosphere (e.g., exposed to air, uncovered, etc.). The gum roll <NUM> is formed of the strip stock <NUM> such that the first surface <NUM> interfaces with the second surface <NUM>. In some embodiments, there is a buffer (e.g., film, fixture, paper, etc.) interposed between the first surface <NUM> and the second surface <NUM> to prevent the first surface <NUM> from interfacing with the second surface <NUM>. In some embodiments, the strip stock <NUM> is coated with a powder (e.g., inert powder) or coating that prevents the strip stock <NUM> from adhering to itself while being wound into the gum roll <NUM>. In some embodiments, the strip stock <NUM> is dipped in an anti-tack emulsion prior to being wound into the gum roll <NUM> to prevent the strip stock <NUM> from sticking to itself.

When the gum roll <NUM> has the desired outer roll diameter <NUM>, the strip stock <NUM> is cut and the gum roll <NUM> is considered to be complete. In some embodiments, the gum roll <NUM> may include a splice <NUM>. For example, the strip stock <NUM> may have a strip length that is too short to form the gum roll <NUM> of the desired outer roll diameter <NUM>. For example, <NUM>,<NUM> (<NUM> feet) of strip stock may be required to form the gum roll <NUM> of the desired outer roll diameter <NUM>, but a first strip stock may have a strip length of only <NUM>,<NUM> (<NUM> feet). Thus, the second end <NUM> of the first strip stock may be spliced with (e.g., coupled to, hot spliced, etc.) a first end of a second strip stock to form the gum roll <NUM> having the desired outer roll diameter <NUM>. In some embodiments, a third strip stock may be required to form the gum roll <NUM>, the third strip stock joined to the second strip stock with a second splice. It should be understood that the gum roll <NUM> may include many splices that join many strip stocks (e.g., <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, etc.).

Referring now to <FIG>, a first winding system <NUM> is shown, according to an example embodiment. The first winding system <NUM> includes a rotating spindle <NUM>, an actuator <NUM>, and a fixture assembly <NUM>. The actuator <NUM> is configured to rotate the rotating spindle <NUM> and the fixture assembly <NUM>. The fixture assembly <NUM> is coupled to the rotating spindle <NUM> such that the fixture assembly <NUM> rotates as the rotating spindle <NUM> rotates. The fixture assembly <NUM> includes a first fixture plate <NUM>, a second fixture plate <NUM>, and a core fixture <NUM>. The first fixture plate <NUM>, the second fixture plate <NUM>, and the core fixture <NUM> are removably coupled to the rotating spindle <NUM> such that a central axis of the rotating spindle <NUM> extends through each of the first fixture plate <NUM>, the second fixture plate <NUM>, and the core fixture <NUM>. The first fixture plate <NUM> and the second fixture plate <NUM> are separated by a distance, shown as a fixture width <NUM>. The first fixture plate <NUM> and the second fixture plate <NUM> are configured to facilitate winding the gum roll <NUM>. In some embodiments, the fixture width <NUM> is approximately equal to the roll thickness <NUM>.

The first fixture plate <NUM> includes a fixture slot <NUM>. The fixture slot <NUM> includes a first slot edge <NUM> and a second slot edge <NUM>. The first slot edge <NUM> extends in a substantially circumferential direction with respect to a central axis of the rotating spindle <NUM>. The first slot edge <NUM> is positioned a distance away from the central axis of the rotating spindle <NUM>, the distance shown as a first edge radius <NUM>. Similarly, the second slot edge <NUM> extends in a substantially circumferential direction with respect to the central axis of the rotating spindle <NUM>. In some embodiments, the second slot edge <NUM> is concentric with the first slot edge <NUM>. The second slot edge <NUM> is positioned radially away from the central axis of the rotating spindle <NUM> by a distance, shown as a second edge radius <NUM>. The fixture slot <NUM> acts as a "Go/No Go" gauge, where the operator cuts the strip stock <NUM> when the gum roll <NUM> is visible through the fixture slot <NUM>. Specifically, the gum roll <NUM> has the desired outer roll diameter <NUM> when a portion of the gum roll <NUM> extends radially away from the central axis of the rotating spindle <NUM> a distance equal to or greater than the first edge radius <NUM>, but less than or equal to the second edge radius <NUM>. In some embodiments, the first edge radius <NUM> is approximately <NUM>,<NUM> (<NUM> inches) and the second edge radius <NUM> is approximately <NUM>,<NUM> (<NUM> inches).

In some embodiments, the first winding system <NUM> includes a pressure roller <NUM>. The pressure roller <NUM> is configured to apply a radial force to the gum roll <NUM> in a direction generally toward the central axis of the rotating spindle <NUM> as the strip stock <NUM> is wound around the core fixture <NUM>. The core fixture <NUM> may be a cylindrical sleeve or shaft that is removably coupled to the rotating spindle <NUM> and is structured to withstand the radially compressive forces caused by the winding of the strip stock <NUM>. In some embodiments, the strip stock <NUM> is wound around the rotating spindle <NUM>. The force applied by the pressure roller <NUM> may be adjusted to achieve a desired winding tension. In some embodiments, the pressure roller <NUM> includes a sensor <NUM>, such as an encoder, that automatically determines the outer roll diameter <NUM> as the strip stock <NUM> is wound onto the core fixture <NUM>. In some embodiments, the first winding system <NUM> may further include a cutting system <NUM> configured to cut the strip stock <NUM> when the sensor <NUM> detects that the outer roll diameter <NUM> is in the desired range.

As shown in <FIG>, when the gum roll <NUM> has the desired outer roll diameter <NUM>, the first fixture plate <NUM> may be removed from the first winding system <NUM> such that the gum roll <NUM> and the core fixture <NUM> may be removed from the first winding system <NUM>. An assisted lifting device may be used to transport the gum roll <NUM> from the first winding system <NUM> to a skid or pallet. The gum roll <NUM> may be placed on a flat transport structure (e.g., skid, pallet, etc.), referred to herein as a skid <NUM>, such that the first side <NUM> is facing the top of the skid <NUM>. The skid <NUM> may be formed of plastic, press board, metal, cardboard, wood, and the like.

Referring now to <FIG>, a method <NUM> of forming the gum roll <NUM> is shown, according to an example embodiment. At <NUM>, the strip stock <NUM> is provided. The strip stock <NUM> may be manufactured just before being wound into the gum roll <NUM>. In some embodiments, the strip stock <NUM> is stored on a roll for a period of time prior to being wound into the gum roll <NUM>.

At <NUM>, the core fixture <NUM> is coupled to the rotating spindle <NUM> such that the core fixture <NUM> rotates as the rotating spindle <NUM> rotates. In some embodiments, the core fixture <NUM> is a hollow tube that is centered on the rotating spindle <NUM>. In some embodiments, the core fixture <NUM> is an elongate bar coupled to the rotating spindle <NUM> at one end.

At <NUM>, the first end <NUM> of the strip stock <NUM> is coupled to the core fixture <NUM>. Specifically, the first end <NUM> is coupled to the core fixture <NUM> such that the first surface <NUM> of the strip stock <NUM> interfaces with an outer surface of the core fixture <NUM>.

At <NUM>, the rotating spindle <NUM> is rotated to wind the strip stock <NUM> onto the core fixture <NUM> to form the gum roll <NUM>. In some embodiments, the pressure roller <NUM> is used to facilitate the winding tension of the gum roll <NUM>. In some embodiments, the winding tension is controlled such that the gum roll <NUM> is formed using a constant winding tension.

At <NUM>, the second end <NUM> of the strip stock <NUM> is spliced to a first end of another strip stock to increase the length of the strip stock <NUM>. For example, if the strip stock <NUM> is too short to form the entire gum roll <NUM>, another strip stock may be spliced to the second end <NUM> of the strip stock <NUM>, and the winding of the gum roll <NUM> continues. In some embodiments, the strip stock <NUM> is of adequate length and this step <NUM> is not required.

At <NUM>, the strip stock <NUM> (e.g., the first strip stock, the second strip stock, etc.) is cut to form the second end <NUM>. The strip stock <NUM> may be cut when the outer roll diameter <NUM> reaches a desired diameter. In some embodiments, the second end <NUM> is crimped (e.g., impressed, deformed and coupled) to the gum roll <NUM> to prevent the second end <NUM> from separating from the gum roll <NUM>, such as during transportation.

At <NUM>, the core fixture <NUM> is removed from the rotating spindle <NUM>. The gum roll <NUM> may be removed using an assistive lifting device, such as a fork lift, lift-assist, or a similar assistive lifting device.

At <NUM>, the core fixture <NUM> is removed from the gum roll <NUM> such that the inner roll surface <NUM> is exposed to air. In some embodiments, the gum roll <NUM> may be laid flat on a pallet or skid before the core fixture <NUM> is removed from the gum roll <NUM>. In some embodiments, the gum roll <NUM> may be removed from the core fixture <NUM> without removing the core fixture <NUM> from the rotating spindle <NUM>.

At <NUM>, the structural support core <NUM> is positioned within the gum roll <NUM> to replace the core fixture <NUM> and to provide support to the inner roll surface <NUM>. The structural support core <NUM> is positioned within the gum roll <NUM> such that the structural support core <NUM> interfaces with the inner roll surface <NUM> of the gum roll <NUM>.

Referring now to <FIG>, the skid <NUM> is shown having a first gum roll <NUM>, a second gum roll <NUM>, a third gum roll <NUM>, and a fourth gum roll <NUM> positioned thereon. Each of the first gum roll <NUM>, the second gum roll <NUM>, the third gum roll <NUM>, and the fourth gum roll <NUM> are substantially similar to the gum roll <NUM>. Accordingly, similar features are denoted with like numbering. Herein, the first gum roll <NUM>, the second gum roll <NUM>, the third gum roll <NUM>, and the fourth gum roll <NUM> are collectively referred to as "the gum rolls <NUM>.

The skid <NUM> defines a generally planner stacking surface <NUM> (e.g., first skid surface) having a skid width <NUM> and a skid length <NUM>. In some embodiments, the stacking surface <NUM> is substantially square, the skid width <NUM> and the skid length <NUM> being approximately the same length. In some embodiments, the stacking surface <NUM> defines a polygon (e.g., regular polygon, irregular polygon) different from a square, such as a rectangle, trapezoid, rhombus, diamond, parallelogram, etc. In some embodiments, the skid width <NUM> and the skid length <NUM> are different lengths. In some embodiments, the skid <NUM> has a skid width <NUM> of approximately <NUM>,<NUM> (<NUM> inches) and a skid length <NUM> of approximately <NUM>,<NUM> (<NUM> inches). In some embodiments, the skid <NUM> has a skid width <NUM> of approximately <NUM>,<NUM> (<NUM> inches) and a skid length <NUM> of approximately <NUM>,<NUM> (<NUM> inches).

In some embodiments, each of the first gum roll <NUM>, the second gum roll <NUM>, the third gum roll <NUM>, and the fourth gum roll <NUM> fit on the stacking surface <NUM> such that no portion of any of the first gum roll <NUM>, the second gum roll <NUM>, the third gum roll <NUM>, and the fourth gum roll <NUM> extends beyond a perimeter of the stacking surface <NUM>. In some embodiments, a portion of any of the first gum roll <NUM>, the second gum roll <NUM>, the third gum roll <NUM>, and the fourth gum roll <NUM> may extend beyond the perimeter of the stacking surface <NUM> and hang over the edge of the skid <NUM>. The first gum roll <NUM> may have the outer roll diameter <NUM> equal to or less than one half of the skid length <NUM>. In some embodiments, each of the gum rolls <NUM> is defined by a substantially similar outer roll diameter <NUM> being approximately equal to one half of the skid length <NUM> such that the gum rolls <NUM> may be positioned on the stacking surface <NUM> without hanging over the edge of the skid <NUM>.

Interposed between the gum rolls <NUM> and the stacking surface <NUM> may be a first film sheet (e.g., film, film barrier, etc.) <NUM> that prevents direct contact between the gum rolls <NUM> and the stacking surface <NUM>. In some embodiments, the skid <NUM> may be formed of a material that fuses to the strip stock <NUM> immediately upon contact, and thus the first film sheet <NUM> is configured to prevent such contact. In some embodiments, the gum rolls <NUM> are naked and coreless , meaning that the strip stock <NUM> is exposed to the atmosphere when the gum rolls <NUM> are positioned on the stacking surface <NUM>. The gum rolls <NUM> cooperate to form a first skid layer <NUM>. The skid <NUM> may be configured to support many gum rolls, and thus multiple skid layers.

Referring now to <FIG>, a perspective view of the skid <NUM> having the first skid layer <NUM> is shown, according to another example embodiment. After forming the first skid layer <NUM> from the gum rolls <NUM>, a second film sheet <NUM> may be positioned on top of the gum rolls <NUM>. Specifically, the first side <NUM> of each of the gum rolls <NUM> may interface with the first film sheet <NUM>, and the second side <NUM> of each of the gum rolls <NUM> interfaces with the second film sheet <NUM>. After the second film sheet <NUM> is positioned on the gum rolls <NUM>, a fifth gum roll <NUM>, a sixth gum roll <NUM>, a seventh gum roll <NUM>, and an eighth gum roll <NUM>, referred to herein as the gum rolls <NUM>, may be positioned on the second film sheet <NUM> such that the fifth gum roll <NUM> is approximately concentric with the first gum roll <NUM>, the sixth gum roll <NUM> is approximately concentric with the second gum roll <NUM>, the seventh gum roll <NUM> is approximately concentric with the third gum roll <NUM>, and the eighth gum roll <NUM> is approximately concentric with the fourth gum roll <NUM>. The gum rolls <NUM> may be substantially similar to the gum roll <NUM>. Collectively, the gum rolls <NUM> form a second skid layer <NUM>. On top of the second skid layer <NUM>, a third film sheet <NUM> may be positioned, shown in <FIG>. After the third skid layer <NUM> is added to the skid <NUM>, the skid <NUM> may be skid wrapped using poly film <NUM>, as shown in <FIG>. In some embodiments, film sheets (e.g., the first film sheet <NUM>, the second film sheet <NUM>, and the third film sheet <NUM>) are not provided between the skid layers (e.g., between the first skid layer <NUM> and the second skid layer <NUM>).

This pattern may be repeated until the skid <NUM> is loaded with a desired amount of gum rolls or until the skid <NUM> is loaded to a suggested load capacity. In some embodiments, the skid <NUM> includes four skid layers. In some embodiments, the skid <NUM> includes five skid layers. In some embodiments, the skid <NUM> includes six skid layers. In some embodiments, the skid <NUM> includes ten skid layers. As shown in <FIG>, the skid <NUM> includes the first skid layer <NUM>, the second skid layer <NUM>, a third skid layer <NUM>, a fourth skid layer <NUM>, and a fifth skid layer <NUM>. The third skid layer <NUM>, the fourth skid layer <NUM>, and the fifth skid layer <NUM> are similar to the first skid layer <NUM>. It should be understood that the skid <NUM> may include most any number of skid layers (e.g., <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, etc.). In some embodiments, after the desired amount of skid layers are formed on the skid <NUM>, a final gum roll <NUM> (similar to the gum roll <NUM>) may be positioned on top of the top skid layer (e.g., the fifth skid layer <NUM>) and centered relative to the stacking surface <NUM>. The final gum roll <NUM> may be used to discourage stacking another skid pallet on top of the skid <NUM> loaded with five skid layers. In some embodiments, each of the gum rolls positioned on the skid <NUM> (e.g., the gum rolls <NUM>, the gum rolls <NUM>, the final gum roll <NUM>) are individually wrapped. In some embodiments, each of the gum rolls positioned on the skid <NUM> are wrapped in poly film <NUM>. For example, a skid wrapping machine or a luggage wrapping machine may be used to wrap the gum rolls. As shown in <FIG>, the skid <NUM> is shown having the first skid layer <NUM>, the second skid layer <NUM>, the third skid layer <NUM>, the fourth skid layer <NUM>, and the fifth skid layer <NUM>. Each of the skid layers may include four gum rolls wrapped in poly film <NUM>. The final gum roll <NUM> may be wrapped in poly film <NUM> and positioned on the fifth skid layer <NUM> and centered relative to the stacking surface <NUM>.

In some embodiments, the skid <NUM> may be substantially rectangular such that the gum rolls are loaded on the stacking surface <NUM> in a 2x3 configuration. In some embodiments, the gum rolls may be loaded on the stacking surface <NUM> in a triangular configuration such that three gum rolls form each of the skid layers. In some embodiments, such as shown in <FIG>, the gum roll <NUM> may be formed to have an outer roll diameter <NUM> approximately equal to the skid length <NUM> such that the first skid layer <NUM> includes only one gum roll <NUM> and the gum roll <NUM> does not extend beyond the perimeter of the stacking surface <NUM>. For example, if the skid width <NUM> and the skid length <NUM> are each approximately <NUM>,<NUM> ( <NUM> inches), the gum roll <NUM> may be formed to have the outer roll diameter <NUM> measuring approximately, but not more than, <NUM>, <NUM> (<NUM> inches). In some embodiments, the gum roll <NUM> may have an outer roll diameter of <NUM>,<NUM> (<NUM> inches). In some embodiments, the gum roll <NUM> has an outer diameter of between <NUM>,<NUM> and <NUM>,<NUM> (<NUM> and <NUM> inches), inclusive, less than the shortest dimension (e.g., width, length) of the skid <NUM>. For example, if the skid width <NUM> is <NUM>,<NUM> (<NUM> inches) and the skid length <NUM> is <NUM>, <NUM> (<NUM> inches), the gum roll <NUM> may have a diameter between <NUM>,<NUM> and <NUM>,<NUM> (<NUM> and <NUM> inches), inclusive. The gum roll <NUM> may be placed on the first film sheet <NUM> on the stacking surface <NUM>, and the second film sheet <NUM> may be placed on top of the gum roll <NUM> such that the gum roll <NUM> forms the entirely of the first skid layer <NUM>. The skid <NUM> may include <NUM>, <NUM>, <NUM>, <NUM>, or more such gum rolls such that the skid <NUM> includes five or more skid layers, each of the skid layers formed of a single gum roll. In some embodiments, the skid <NUM> includes the final gum roll <NUM>. The final gum roll <NUM> may define the outer roll diameter <NUM> less than the skid width <NUM>. In some embodiments, the outer roll diameter <NUM> is approximately <NUM>-<NUM>% of the skid width <NUM>, inclusive.

Referring now to <FIG>, a method <NUM> of loading the skid <NUM> with gum rolls is shown according to an exemplary embodiment. At <NUM>, the skid <NUM> having the stacking surface <NUM> is provided. The stacking surface <NUM> may be most any shape or size configured to receive the gum roll <NUM>. In some embodiments, the stacking surface <NUM> is round such that material may be saved in the manufacturing of the skid <NUM>.

At <NUM>, the first film sheet <NUM> is positioned on the stacking surface <NUM>. The first film sheet <NUM> may be formed of a polymer, an elastomer, or a similar material. In some embodiments, the first film sheet <NUM> is treated or coated such that the first film sheet <NUM> is resistant to curing to, sticking to, or permanently adhering to the gum roll <NUM>. In some embodiments, the film sheet <NUM> is not provided. The gum roll <NUM> may be sized to have a diameter that is <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches) less than one of the stacking width <NUM> or the stacking length <NUM>. In some embodiments, the gum roll <NUM> is sized to have an outer roll diameter <NUM> that is between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches) less than at least one of the stacking width <NUM> or the stacking length <NUM>. For example, if the stacking width <NUM> and the stacking length <NUM> are both <NUM>,<NUM> (<NUM> inches), the diameter of the gum roll <NUM> may be between <NUM>,<NUM>-<NUM>,<NUM> (<NUM>-<NUM> inches).

At <NUM>, the gum roll <NUM> is provided on the first film sheet <NUM> such that no portion of the gum roll <NUM> extends beyond the perimeter of the stacking surface <NUM>. In other words, the first side <NUM> (or second side <NUM>) is positioned entirely on the first film sheet <NUM>. In some embodiments, the gum rolls <NUM> are positioned in a 2x2 (two-by-two) configuration on the skid <NUM> such that no portion of any one of the gum rolls <NUM> extends beyond the perimeter of the stacking surface <NUM>. In some embodiments, such as when the first film sheet <NUM> is not provided, the first side <NUM> is positioned on the stacking surface <NUM>. The first side <NUM> is positioned entirely on the stacking surface <NUM>.

At <NUM>, the first skid layer <NUM> is formed on the first film sheet <NUM>. Specifically, as shown in <FIG>, the second gum roll <NUM> is positioned on the stacking surface, abutting the first gum roll <NUM>. The first skid layer <NUM> may be formed only of naked, coreless gum rolls, such as the gum roll <NUM>. In some embodiments, the gum rolls <NUM> form the first skid layer <NUM> and a divider is positioned between each of the gum rolls <NUM> to prevent any one of the gum rolls <NUM> from contacting another one of the gum rolls <NUM>. In some embodiments, each one of the gum rolls <NUM> is individually wrapped in poly film <NUM>. In some embodiments, the gum rolls <NUM> are individually wrapped in poly film before the gum rolls <NUM> are positioned on the stacking surface <NUM> to form the first skid layer <NUM>.

At <NUM>, the second film sheet <NUM> is positioned on the first skid layer <NUM> such that the first skid layer <NUM> is prevented from contacting the second skid layer <NUM>. At <NUM>, steps <NUM> and <NUM> may be repeated until the desired number of skid layers is formed. In some embodiments, the second film sheet <NUM> is not provided and the gum rolls <NUM> of the first skid layer <NUM> are able to interface with the gum rolls of the second skid layer <NUM>.

At <NUM>, the final gum roll <NUM>, similar to the gum roll <NUM>, is positioned on the final skid layer (e.g., the fifth skid layer <NUM>) and centered relative to the stacking surface <NUM>. The final gum roll <NUM> is positioned to discourage stacking another pallet or skid on top of the skid <NUM>.

At <NUM>, the skid layers (e.g., the first skid layer <NUM> and the second skid layer <NUM>) are skid wrapped, such as using poly film <NUM> or similar material to wrap the skid layers and prevent shifting of the gum rolls during shipping.

Referring now to <FIG>, a second winding system <NUM> for winding the strip stock <NUM> is shown, according to an example embodiment. The second winding system <NUM> includes a core fixture <NUM>, a rotating spindle <NUM>, a handle <NUM>, and a support stand <NUM>. The second winding system <NUM> is configured to wind the strip stock <NUM> into the gum roll <NUM> (e.g., the gum rolls <NUM>). Specifically, the strip stock <NUM> may be formed as a sheet stock <NUM> prior to being scored or cut into the strip stock <NUM>. As shown in <FIG>, the sheet stock <NUM> has a width approximately equal to five times the stock width <NUM>. The sheet stock <NUM> may include an incision <NUM> (e.g., cut, score, partial cut, perforation, etc.), each incision <NUM> corresponding to an edge of the strip stock <NUM>. The sheet stock <NUM> may be coupled to the core fixture <NUM> and wound onto the core fixture such that an elongate roll <NUM> is formed, the elongate roll <NUM> including multiple gum rolls. For example, the sheet stock <NUM> may have a width approximately equal to five times the stock width <NUM> and the sheet stock may include four incisions <NUM>, the incisions <NUM> facilitating separation of the strip stock <NUM> from the sheet stock <NUM>, but the incisions <NUM> not fully separating the strip stock <NUM> from the sheet stock <NUM>. The sheet stock <NUM> is wound onto the core fixture <NUM>, the core fixture <NUM> defining a length <NUM> greater than the width of the sheet stock <NUM> such that no portion of the sheet stock <NUM>, and similarly no portion of the elongate roll <NUM>, extends beyond the ends of the core fixture <NUM>. In some embodiments, the incisions <NUM> extend all the way through the sheet stock <NUM> and separate the sheet stock <NUM> into individual strip stocks <NUM>. Thus, the individual strip stock <NUM> may be wound on the core fixture <NUM> in close proximity to one another forming individual gum rolls <NUM> that are not coupled to one another.

The core fixture <NUM> is removably coupled to the rotating spindle <NUM> such that the core fixture <NUM> may be removed from the second winding system <NUM> when the elongate roll <NUM> is at a desired diameter. The rotating spindle <NUM> is operatively coupled to the handle <NUM>. In some embodiments, the handle <NUM> is rotated by hand, such as by an operator, to facilitate winding of the elongate roll <NUM> onto the core fixture <NUM>. In some embodiments, the rotating spindle <NUM> is operatively coupled to an actuator configured to rotate the rotating spindle <NUM> and wind the sheet stock <NUM> on the core fixture <NUM>. The core fixture <NUM>, the rotating spindle <NUM>, and the handle <NUM> are all supported by the support stand <NUM>.

Referring now to <FIG>, the elongate roll <NUM> is shown positioned on the skid <NUM>. A lifting device, such as a robotic arm or fork lift may transfer the elongate roll <NUM> from the second winding system <NUM> to the skid <NUM>. The elongate roll <NUM> may be rotated sideways such that the core fixture <NUM> extends substantially perpendicular relative to the stacking surface <NUM>. The elongate roll <NUM> may then be positioned on the skid <NUM> and the core fixture <NUM> may be removed from the elongate roll <NUM>.

The elongate roll <NUM> may be positioned on the skid <NUM> without separating the individual gum rolls <NUM> from the elongate roll <NUM> via the incisions <NUM>. Thus, the skid <NUM> may include the first film sheet <NUM> between the elongate roll <NUM> and the stacking surface <NUM>, and the skid may include the second film sheet <NUM> on top of the elongate roll <NUM>. In some embodiments, the skid <NUM> includes one elongate roll <NUM> positioned on the skid <NUM> and centered on the skid <NUM> relative to the stacking surface <NUM>. The diameter of the elongate roll <NUM> may be slightly less than the skid length <NUM> and less than the skid width <NUM>.

In some embodiments, the skid <NUM> includes a first elongate roll <NUM>, a second elongate roll <NUM>, a third elongate roll <NUM>, and a fourth elongate roll <NUM>, herein referred to collectively as the elongate rolls <NUM>. The elongate rolls <NUM> may be positioned on the skid <NUM> in a two-by-two configuration. After the elongate rolls <NUM> are positioned on the skid <NUM>, the elongate rolls <NUM> may be skid wrapped to prevent the elongate rolls <NUM> from shifting during shipping. While the elongate roll <NUM> is shown as including four incisions <NUM> and five gum rolls <NUM>, the elongate roll <NUM> may include any number of incisions <NUM> or gum rolls <NUM> (e.g., two gum rolls <NUM> and one incision <NUM>, three gum rolls <NUM> and two incisions, six gum rolls <NUM> and five incisions <NUM>, etc.).

Turning now to <FIG>, the skid <NUM> having the elongate rolls <NUM> is shown in a retreading environment. Positioned within the retreading environment may be a retreading system <NUM> including an extruder <NUM>. The strip stock <NUM> is fed into the extruder <NUM>, which then applies the strip stock <NUM> to a tire casing <NUM> during a retreading operation. The extruder <NUM> is configured to receive the strip stock <NUM> and extrude the strip stock <NUM> through a die, tube, or similar structure. The strip stock <NUM> is then applied to the tire casing <NUM> during a retread process. In some embodiments, extruding the strip stock <NUM> including heating up the strip stock <NUM> to activate the adhesive (e.g., tackifying) agents that cause the strip stock <NUM> to adhere to the tire casing <NUM>. In some embodiments, the first end <NUM> is fed into the extruder <NUM>. In other words, the strip stock <NUM> from the gum roll <NUM> is "center-fed. " In some embodiments, the second end <NUM> is fed into the extruder <NUM>. The gum roll <NUM> may still be coupled to the elongate roll <NUM> when the first end <NUM> is fed into the extruder <NUM>. For example, the incision <NUM> may be a perforation that allows separation between the strip stock <NUM> of the gum roll <NUM> and the strip stock <NUM> of the adjacent gum roll when a predetermined force is applied, such as by the extruder <NUM>. An operator may grab the first end <NUM> and separate the strip stock <NUM> proximate the first end <NUM> from the adjacent gum roll by pulling on the first end <NUM>. As the first end <NUM>, and thus the strip stock <NUM>, is fed into the extruder <NUM>, the strip stock <NUM> may separate from the adjacent gum roll along the incision <NUM>. After the entire gum roll <NUM> has been used, the same process may be applied to the adjacent gum roll.

Referring now to <FIG>, a third winding system <NUM> is shown, according to an example embodiment. The third winding system <NUM> is similar to the second winding system <NUM>. A difference between the third winding system <NUM> and the second winding system <NUM> is that the third winding system <NUM> does not include the handle <NUM>. The third winding system <NUM> includes a pair of drive rollers <NUM> configured to wind the sheet stock <NUM> into the elongate roll <NUM>. The pair of drive rollers <NUM> interface with second surface <NUM> of the strip stock <NUM> (e.g., the second surface <NUM> of the sheet stock <NUM>) and wind the sheet stock <NUM> into the elongate roll <NUM>.

Referring now to <FIG>, the gum roll <NUM> is shown on a conveyor <NUM>. The gum roll <NUM> travels down the conveyor <NUM> and is received by a wrapping system <NUM> configured to wrap the gum roll <NUM>. The gum roll <NUM> may be wrapped in poly film <NUM> to prevent damage to the gum roll <NUM> during packaging and shipping. After the gum roll <NUM> is wrapped in poly film <NUM>, the gum roll <NUM> is placed on the skid <NUM>.

Referring to <FIG>, a fourth winding system <NUM> is shown according to an example embodiment. The fourth winding system <NUM> is configured to wind the gum roll <NUM> substantially horizontally such that the central axis CA is substantially parallel to gravity while the gum roll <NUM> is wound. The fourth winding system <NUM> includes a core fixture <NUM>, a pressure roller <NUM>, guide rollers <NUM>, a rotating platform <NUM>, and an actuator <NUM>. The fourth winding system <NUM> is configured to wind the gum roll <NUM> directly on the skid <NUM>, removing the intermediate step of having to rotate the gum roll <NUM> such that one of the first side <NUM> or the second side <NUM> is substantially parallel to the stacking surface <NUM>. In some embodiments, the fourth winding system <NUM> winds all of the skid layers (e.g., five skid layers) at the same time.

To start the gum roll <NUM>, the first end <NUM> may be coupled to the core fixture <NUM>. The guide rollers <NUM> facilitate the positioning of the strip stock <NUM> to prevent the strip stock <NUM> from twisting or tearing during the winding of the gum roll <NUM>. As shown, the strip stock <NUM> is initially fed in a vertical direction (e.g., the first edge <NUM> and the second edge <NUM> are substantially perpendicular to the skid <NUM>). The guide rollers <NUM> redirect the strip stock <NUM> such that the strip stock <NUM> may be wound into the gum roll <NUM> in a horizontal direction. In other words, the guide rollers <NUM> may facilitate a substantially <NUM>-degree turn in the feed direction of the strip stock <NUM> such that the first edge <NUM> and the second edge <NUM> are substantially parallel to the stacking surface <NUM>. In some embodiments, the guide rollers <NUM> may redirect a feed direction of the sheet stock <NUM>, such as if the sheet stock <NUM> is to be wound onto the core fixture <NUM> such that the elongate roll <NUM> is formed on the skid <NUM>.

The skid <NUM> is placed on and may be coupled to the rotating platform <NUM> such that the skid <NUM> rotates as the rotating platform <NUM> rotates. In some embodiments, the core fixture <NUM> rotates as the rotating platform <NUM> rotates. The first end <NUM> of the strip stock <NUM> may be coupled to the core fixture <NUM> such that the first surface <NUM> proximate to the first end <NUM> interfaces with the core fixture <NUM>. As the rotating platform <NUM> rotates, the strip stock <NUM> is wound onto the core fixture <NUM>. The pressure roller <NUM> may interface with the second surface <NUM> of the strip stock <NUM> to maintain a consistent winding tension of the gum roll <NUM>.

The core fixture <NUM> is positioned proximate to a center of the stacking surface <NUM> such that the gum roll <NUM> is centered on the skid <NUM> relative to the stacking surface <NUM>. In some embodiments, a sleeve is provided around the core fixture <NUM> to facilitate removal of the core fixture <NUM> from the gum roll <NUM>. The core fixture <NUM> is retractable such that after the gum roll <NUM> is formed, the core fixture <NUM> may be pulled upward away from the skid <NUM> and out of the middle of the gum roll <NUM> while sleeve remains positioned within the gum roll <NUM>. When the desired diameter of the gum roll <NUM> is achieved, for example such that no portion of the gum roll <NUM> extends beyond the perimeter of the stacking surface <NUM>, the strip stock <NUM> may be cut to form the second end <NUM>. The first end <NUM> formed by the cut may be coupled to the core fixture <NUM> proximate to where the gum roll <NUM> is coupled to the core fixture <NUM>. The process may be repeated to form a second gum roll on top of the gum roll <NUM> that was formed on the skid <NUM>. In some embodiments, the second film sheet <NUM> may be positioned between the second gum roll and the gum roll <NUM>. The gum roll <NUM> forms the first skid layer <NUM>. The skid <NUM> may include multiple skid layers (e.g., the first skid layer <NUM> and the second skid layer <NUM>) until the desired amount of skid layers are formed or until the load capacity of the skid <NUM> is achieved. In some embodiments, the skid <NUM> includes ten skid layers. In some embodiments, the final gum roll <NUM> is positioned on the final skid layer (e.g., the fifth skid layer <NUM>, a sixth skid layer, an eight skid layer, etc.) to discourage stacking another pallet or skid on the skid <NUM>.

After the skid <NUM> includes the desired amount of gum rolls, the skid layers may be skid wrapped. In some embodiments, the skid layers are skid wrapped using a poly film roller <NUM>. The poly film <NUM> may be coupled to the skid layers, and the rotating platform <NUM> may rotate to unwind the poly film <NUM> from the poly film roller <NUM> and wind the poly film <NUM> on the skid layers. The core fixture <NUM> may be removed from the skid layers before or after the skid layers are skid wrapped.

Referring to <FIG>, a plurality of the fourth winding systems <NUM> are shown. The sheet stock <NUM> is shown as including five strip stocks <NUM> and four incisions <NUM>. As the sheet stock <NUM> is fed toward the plurality of fourth winding systems <NUM>, the sheet stock <NUM> may be separated into the strip stock <NUM> along the incisions <NUM>. All five of the shown fourth winding systems <NUM> may operate to wind the strip stock <NUM> at the same time such that the sheet stock <NUM> is wound into five of the gum rolls <NUM> at the same time.

The use of the terms "a" and "an" and "the" and similar referents in the context of describing embodiments (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments and does not pose a limitation on the scope of the invention unless otherwise claimed.

It should be noted that the term "example" as used herein to describe some embodiments is intended to indicate that some embodiments are possible examples, representations, and/or illustrations of possible embodiments (and such term is not intended to connote that some embodiments are necessarily extraordinary or superlative examples).

The terms "coupled," "connected," and the like as used herein mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.

Some embodiments are described herein. Variations of those embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the embodiments to be practiced otherwise than as specifically described herein. Accordingly, embodiments include all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law.

Claim 1:
A method of forming a gum roll (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>), the method comprising:
providing a strip stock (<NUM>, <NUM>) having a first end (<NUM>), a first surface (<NUM>), and a second surface (<NUM>) opposite to the first surface (<NUM>);
coupling the first end (<NUM>) to a core fixture (<NUM>, <NUM>, <NUM>) so the first surface (<NUM>) interfaces with the core fixture (<NUM>, <NUM>, <NUM>);
rotating the core fixture (<NUM>, <NUM>, <NUM>) to wind the strip stock (<NUM>, <NUM>) onto the core fixture (<NUM>, <NUM>, <NUM>) such that the first surface (<NUM>) interfaces with the second surface (<NUM>) to form a gum roll (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>); and
removing the core fixture (<NUM>, <NUM>, <NUM>) from the gum roll (<NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>, <NUM>).