System and method for forming wrap of paper wrapping material around load

Abstract

Various embodiments of the present disclosure provide a system and method for forming a wrap of paper wrap material around a cargo load.

Description

[0001] priority

[0002] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 375,566, filed on September 14, 2022, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to a system and method for wrapping a load with a paper wrapping material, and more particularly to a system and method for forming a sleeve of paper wrapping material around a load. Background Art

[0004] Packaging lines include one or more of several different types of grouping systems that group cargo loads by securing the cargo together and, in some applications, to pallets. These grouping systems include stretch wrapping machines that group cargo loads using rolls of plastic stretch film. Typical stretch wrapping machines include a film carrier on which replaceable rolls of stretch film are mounted. To wrap the cargo load, the film carrier rotates relative to the load, or the load rotates relative to the film carrier (depending on the type of stretch wrapping machine), while the film carrier moves vertically relative to the load. This relative motion pulls the stretch film from the roll and applies the stretch film to the load in a spiral pattern.

[0005] While stretch wrapping machines have proven to be a stalwart in the industry, there is a desire to reduce the use of plastic stretch film where appropriate without negatively impacting the formation of loads. Paper wrapping material is a recyclable, eco-friendly alternative to plastic stretch film. There is a continuing need for new systems for wrapping cargo loads with paper wrapping material. Summary of the invention

[0006] Various embodiments of the present disclosure provide a system and method for forming a sleeve of paper wrapping material around a load of cargo.

[0007] A method for forming a paper wrapping material sleeve around a load includes: applying paper wrapping material to a front surface of the load by engaging the front surface of the load with the paper wrapping material, the paper wrapping material extending from a roll of paper wrapping material to a first roller on one side of the load and from the first roller to a second roller on an opposite side of the load; applying the paper wrapping material to opposite first and second side surfaces of the load, wherein applying the paper wrapping material to the second side surface includes unwinding a portion of the length of the paper wrapping material wrapped around the second roller; and applying the paper wrapping material to a rear surface of the load to form the paper wrapping material sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figures 1A to 1J is a diagrammatic top plan view of a wrapping system of the present disclosure forming a sleeve of paper wrapping material around a load of cargo.

[0009] Figure 2 is a block diagram illustrating certain components of the wrapping system of FIG. 1 . DETAILED DESCRIPTION

[0010] Although the systems, devices, and methods described herein may be implemented in various forms, the drawings illustrate and the specification describes certain exemplary and non-limiting embodiments. Not all of the components shown in the drawings and described in the specification may be required, and some implementations may include additional, different, or fewer components. The arrangement and type of components; the shape, size, and material of the components; and the manner in which the components are connected may vary without departing from the spirit or scope of the claims. Unless otherwise specified, any direction mentioned in the specification reflects the orientation of the components shown in the corresponding drawings and does not limit the scope of the present disclosure. Further, terms related to installation methods such as mounting, connecting, etc. are not intended to be limited to direct installation methods, but should be broadly interpreted to include indirect and operative installation methods, connections, etc. This specification is intended to be regarded as a whole and interpreted in accordance with the principles of the present disclosure and as understood by a person of ordinary skill in the art.

[0011] Various embodiments of the present disclosure provide a system and method for withdrawing paper wrapping material from a roll and forming a sleeve of paper wrapping material around a load of cargo. Figure 1A to Figure 2 One embodiment of a paper wrapping system 10 of the present disclosure is shown, as well as components and parts of the wrapping system 10. The wrapping system 10 includes a conveyor system (not labeled) and a wrapping apparatus 100.

[0012] The conveyor system supports the load and moves the load in the moving direction MD ( Figure 1A ) relative to certain components of the wrapping device 100 and between certain components. The conveyor system includes a conveyor 55 and one or more conveyor actuators 55a, which are operably connected to the conveyor 55 and are configured to drive the conveyor 55. Specifically, the conveyor 55 includes a conveyor frame 55f and a plurality of aligned rollers 55r rotatably supported by the conveyor frame 55f. For clarity, the rollers 55r are not shown in FIG. Figures 1B to 1J. One or more conveyor actuators 55a (which in this exemplary embodiment include one or more electric motors, but may include any suitable type of actuator(s)) are operably connected to the conveyor rollers 55r through a suitable drive train (such as via gears, chains, belts, etc.) and are configured to drive the conveyor rollers 55r. Instead of or in addition to the drive rollers, the conveyor may include one or more driven belts or any other suitable type of driven components.

[0013] When the conveyor system moves the load relative to and through the wrapping device 100, the wrapping device 100 forms a wrap of paper wrapping material WM around the load. The wrapping device 100 includes a roll support assembly 200, a first roller assembly 300, a second roller assembly 400, a gripper assembly, an adhesive applicator assembly, a cutter assembly, a controller 900, and one or more sensors S.

[0014] The roll support assembly 200 supports and drives the roll R of the paper wrapping material WM during the wrapping process. The roll support assembly 200 includes a roll support 210 and a roll actuator 210a. The roll support 210 includes a platform 210p and a main shaft 210s extending from the platform 210p and rotatable relative to the platform. The size, shape, orientation, position of the platform 210p is set to and is otherwise configured to support the roll R. The size, shape, orientation, position of the main shaft 210s is set to and is otherwise configured so that the center core of the roll R of the paper wrapping material WM can slide onto the main shaft 210s and be fixed to rotate with the main shaft 210s, so that the roll R can rotate with the main shaft 210s relative to the platform 210p. In some embodiments, the main shaft 210s includes radially outwardly biased friction members, which are configured to fix the roll R to rotate with the main shaft 210s via friction fit, but any other suitable manner may be adopted. Roll actuator 210a (which in this exemplary embodiment comprises an electric motor, but may be any other suitable actuator) is operably connected to spindle 210s and is configured to rotate spindle 210s and roll R mounted thereto relative to platform 210p. Roll support assembly 200 is positioned proximate to the conveyor system.

[0015] The first roller assembly 300 manipulates the paper wrapping material WM during the wrapping process, and after the wrapping process is completed, supplies the paper wrapping material WM to the second roller assembly 400 to prepare for the next wrapping process. The first roller assembly 300 includes a cylindrical first drive roller 310, a first drive roller actuator 310a, a cylindrical first idle roller 320, a first roller assembly actuator 300a, and a first roller assembly support (not shown for clarity). The first drive roller 310 and the first idle roller 320 are oriented vertically (from Figures 1A to 1J310) and is rotatably mounted to the first roller assembly support. A first biasing member (not shown) (such as one or more springs) biases the first idler roller 320 into contact with the first drive roller 310. A first drive roller actuator 310a (which in this exemplary embodiment includes an electric motor, but may be any other suitable actuator) is operably connected to the first drive roller 310 and is configured to rotate the first drive roller 310 relative to the first idler roller 320. On the other hand, in this exemplary embodiment, the first idler roller 320 is free to rotate (not driven). A first roller assembly actuator 300a (which in this exemplary embodiment comprises an electric motor but may be any other suitable actuator) is operably connected to the first drive roller 310 and the first idle roller 320 (e.g., via a first roller assembly support) and is configured to move the first drive roller 310 and the first idle roller 320 relative to the conveyor system (and any load thereon), the roll support assembly 200 (and any roll R thereon), and the second roller assembly 400 in a transverse direction TD that is transverse to (and herein perpendicular to) the direction of movement MD.

[0016] The second roller assembly 400 manipulates the paper wrapping material WM during the wrapping process, and receives and stores the paper wrapping material WM from the first roller assembly 300 after the wrapping process is completed in preparation for the next wrapping process. The second roller assembly 300 includes a cylindrical second drive roller 410, a second drive roller actuator 410a, a cylindrical second idle roller 420, a second roller assembly actuator 400a, and a second roller assembly support (not shown for clarity). The second drive roller 410 and the second idle roller 420 are oriented vertically (from Figures 1A to 1J 4 and 5. The roller assembly 400 is operably connected to the second roller 410 and the second roller 420 is operably connected to the second roller 410 and the second roller 420 is operably connected to the second roller 410 and the second roller 420 is operably connected to the second roller 410 and the second roller 420 is operably connected to the second roller 410 and the second roller 420. The roller assembly 400a is operably connected to the second roller 410 and the second roller 420 and the second roller 420 is operably connected to the second roller 410 and the second roller 420 in the transverse direction TD relative to the conveyor system (and any load thereon), the roll support assembly 200 (and any roll R thereon), and the first roller assembly 300 (such as via the second roller assembly support).

[0017] The gripper assembly grips the paper wrapping material WM to hold it in place during certain stages of the wrapping process, thereby facilitating the formation of the wrapping. The gripper assembly includes a gripper 510 and a gripper actuator 510a. The gripper 510 includes any suitable device, such as a pair of movable fingers, which can be actuated between a gripping configuration in which the gripper 510 grips the paper wrapping material WM and a release configuration in which the gripper 510 releases the paper wrapping material WM. The gripper actuator 510a includes one or more actuators, such as one or more electric motors, which are configured to: (1) actuate the gripper 510 between the gripping configuration and the release configuration; and (2) move the gripper 510 to an appropriate position so that the gripper 510 can grip the paper wrapping material WM. This embodiment of the clamp assembly includes a single clamp, but other embodiments may include any suitable number of clamps, such as one clamp positioned and otherwise configured to clamp the top edge of the wrapping material and another clamp positioned and otherwise configured to clamp the bottom edge of the wrapping material.

[0018] The adhesive applicator assembly applies adhesive to a portion of the paper wrapping material WM, thereby facilitating the formation of a wrap. The adhesive applicator assembly includes an adhesive applicator 610 and an adhesive applicator actuator 610a. The adhesive applicator 610 can be any suitable device that can be actuated to apply any suitable type of adhesive to the paper wrapping material WM. In this exemplary embodiment, the adhesive applicator 610 includes a tape dispenser that is configured to apply double-sided tape to the paper wrapping material. In other embodiments, the adhesive applicator includes a sprayer or roller configured to spray a liquid adhesive onto the paper wrapping material. The adhesive applicator actuator 610a includes one or more actuators that are configured to: (1) actuate the adhesive applicator 610 to apply adhesive; and (2) move the adhesive applicator 610 to facilitate the application of adhesive, which in this exemplary embodiment involves vertically moving the adhesive applicator relative to the conveyor system (and any load thereon), the roll support assembly 200 (and any roll R thereon), the first roller assembly 300, and the second roller assembly 400.

[0019] The cutter assembly cuts the paper wrapping material WM from the roll R. The cutter assembly includes a cutter 710 and a cutter actuator 710a, which is operably connected to the cutter 710 to actuate the cutter 710 to cut the paper wrapping material WM. In this exemplary embodiment, the cutter 710 includes a retractable blade housed in the first drive roller 310, and the cutter actuator 710a (which is an electric motor in this exemplary embodiment, but can be any suitable actuator) is operably connected to the cutter 710 to cause the cutter 710 to protrude from the first drive roller 310 to cut the paper wrapping material WM.

[0020] The sensor S comprises any suitable sensor (such as an encoder) configured to sense the rotation of one or more of the roll R, the first drive roller 310, the first idler roller 320, the second drive roller 410, and the second idler roller 420. In some embodiments, the sensor comprises a presence sensor configured to detect whether the paper wrapping material extends between the roll and the first drive roller. Such a presence sensor may include an optical sensor or may include a position sensor operably connected to a dancer roller that contacts the paper wrapping material extending between the roll and the first drive roller.

[0021] The controller 900 includes a processing device communicatively connected to a memory device. The processing device may include any suitable processing device, such as, but not limited to, a general purpose processor, a special purpose processor, a digital signal processor, one or more microprocessors, one or more microprocessors associated with a digital signal processor core, one or more application specific integrated circuits, one or more field programmable gate array circuits, one or more integrated circuits, and / or a state machine. The memory device may include any suitable memory device, such as, but not limited to, a read-only memory, a random access memory, one or more digital registers, a cache memory, one or more semiconductor memory devices, magnetic media such as an integrated hard disk and / or a removable memory, magneto-optical media, and / or optical media. The memory device stores instructions that can be executed by the processing device to control the operation of the wrapping system 10 (such as performing the wrapping process described below).

[0022] The controller 900 is communicatively and operably connected to the conveyor actuator 55a, the roll actuator 210a, the first roller assembly actuator 300a, the first drive roller actuator 310a, the second roller assembly actuator 400a, the second drive roller actuator 410a, the clamp actuator 510a, the adhesive applicator actuator 610a, the cutter actuator 710a and the sensor S to control the operation of these components and receive signals from these components to perform the wrapping process described below.

[0023] The following references Figures 1A to 1JThe wrapping system 10 is described as performing a wrapping process to form a wrap 1000s of paper wrapping material WM around a cargo load 1000. The cargo load 1000 has a length L, a width W, a front surface 1000a, a rear surface 1000b opposite the front surface 1000a, a first side surface 1000c, and a second side surface 1000d opposite the first side surface 1000c. Figure 1A As shown, at the beginning of the wrapping process, the first drive roller 310 and the first idler roller 320 are in an original position in which they are located between the roll R and the load 1000. Similarly, at the beginning of the wrapping process, the second drive roller 410 and the second idler roller 420 are in an original position on the opposite side of the load 1000 from the first drive roller and the first idler roller, and in this position, the second drive roller and the second idler roller are spaced apart from the load 1000 in the transverse direction TD. The paper wrapping material WM extends from the roll R through the roller gap between the first drive roller 310 and the first idler roller 320, across the conveyor 55 and in front of the front surface 1000a of the load 1000, between the roller gap between the second drive roller 410 and the second idler roller 420, and around the second drive roller 410. The length of the paper wrapping material WM wrapped around the second drive roller 410 is substantially equal to the sum of half the width W of the load 1000 and the length L, but it can be any suitable amount.

[0024] The controller 900 controls the conveyor actuator 55a to drive the conveyor 55 so that the load 1000 moves relative to the wrapping machine 100 and the paper wrapping material WM in the moving direction MD. The front surface 1000a of the load 1000 eventually contacts the paper wrapping material WM suspended across the conveyor 55. The continued movement of the load 1000 causes the load to pull the paper wrapping material off the roll R and off the second drive roller 410, and the paper wrapping material extends along the first side surface 1000c and the second side surface 1000d of the load 1000, respectively. Once the load 1000 has moved past the first drive roller 310 and the second drive roller 410, as shown in FIG. Figure 1B As shown, the controller 900 controls the conveyor actuator 55a to stop driving the conveyor 55. At this time, the paper wrapping material WM extends across the front surface 1000a and extends along the first side surface 1000c and the second side surface 1000d of the load 1000.

[0025] Some types of paper wrapping materials (similar to plastic stretch film) have a certain amount of elasticity, so they can be stretched before being applied to the load to increase the restraining force of the wrap (stretched paper wrapping materials will squeeze the load more tightly than unstretched paper wrapping materials). In certain embodiments where the paper wrapping materials can be stretched, during this step, the controller 900 controls: (1) the roll actuator 210a so that the surface speed of the roll R and the linear speed of the paper wrapping material WM leaving the roll are less than the linear speed of the load 1000 in the moving direction MD, and / or the first drive roller actuator 310a so that the surface speed of the first drive roller 310 and the linear speed of the paper wrapping material WM leaving the first drive roller 310 are less than the linear speed of the load 1000 in the moving direction MD; and (2) the second drive roller actuator 410a so that the surface speed of the second drive roller 410 and the linear speed of the paper wrapping material WM leaving the second drive roller 410 are less than the linear speed of the load 1000 in the moving direction MD. This speed differential (where the load is moving faster than the paper wrapping material applied to the load) causes the paper wrapping material to stretch as it is applied to the load L, with the amount of stretching varying based on the speed differential (larger differences causing greater stretching).

[0026] like Figure 1C As shown, the controller 900 controls the first roller assembly actuator 300a to move the first drive roller 310 and the first idle roller 320 in the transverse direction TD from their original positions to a cover position closer to the second drive roller 410 and the second idle roller 420. During this movement, the first drive roller 310 pulls the paper wrapping material WM from the roll R and crosses a portion of the rear surface 1000b of the load 1000.

[0027] like Figure 1D As shown, the controller 900 then controls the gripper actuator 510a to control the gripper 510 to grip the paper wrapping material near where the paper wrapping material WM leaves the first drive roller 310. For clarity, the gripper 510 is not shown in FIG. Figures 1A to 1C or Figures 1H to 1J Shown in.

[0028] like Figure 1E As shown, the controller 900 controls the adhesive applicator actuator 610a to move and otherwise controls the adhesive applicator 610 to apply adhesive, which in this exemplary embodiment is a double-sided tape T (referred to in the figure for clarity), to the portion of the paper wrapping material WM that extends across the rear surface 1000b of the load 1000. Figure 1F In this exemplary embodiment, adhesive applicator 610 applies adhesive to the paper wrapping material at approximately the midpoint of the width of load 1000.

[0029] like Figure 1F As shown, the controller 900 controls the cutter actuator 710a to actuate the cutter 710 to cut the paper wrapping material WM from the roll R. In this exemplary embodiment, the controller 900 controls the cutter actuator 710a to cause the cutter 710 to protrude from the first driving roller 710, thereby cutting the paper wrapping material WM from the roll R. After cutting, the first driving roller 310 and the first idle roller 320 continue to hold the paper wrapping material WM extending from the roll R.

[0030] like Figure 1G As shown, the controller 900 controls the first roller assembly actuator 300a to move the first drive roller 310 and the first idler roller 320 from their jacketing positions back to their original positions close to the roll R in the transverse direction TD. In doing so, in some embodiments, the controller 900 controls the roll actuator 210a to rotate the roll R to wind any slack paper wrapping material WM onto the roll R. The controller 900 controls the second roller assembly actuator 400a to move the second drive roller 410 and the second idler roller 420 from their original positions to the jacketing positions closer to the first drive roller 310 and the second idler roller 320 in the transverse direction TD. During this movement, the remaining paper wrapping material WM on the second drive roller 410 unwinds and extends across the rear surface 1000b of the load 1000. The second drive roller 410 is positioned relative to the load 1000 so that it forces a portion of the unfolded paper wrapping material WM against an adhesive (here, tape T, not shown again for clarity), which adheres the paper wrapping material WM to itself and completes forming a wrap 1000s around the load L.

[0031] After the wrapping machine 100 forms the wrapping, the paper wrapping material WM is wrapped around the second drive roller 410 to prepare for the next wrapping cycle. Figure 1H As shown, the first roller assembly actuator 300a and the second roller assembly actuator 400a move the first drive roller 310 and the first idle roller 320 and the second drive roller 410 and the second idle roller 420 to respective reloading positions adjacent to each other. When this occurs, the controller 900 controls the roll actuator 210a to rotate the roll R to unwind the paper wrapping material WM from the roll R to compensate for the movement of the first drive roller 310 and the first idle roller 320. The controller 900 also controls the conveyor actuator 55a to drive the conveyor 55 to move the wrapped load 1000 in the moving direction MD.

[0032] like Fig. 1IAs shown, with the rollers in their reloading position, the controller 900 controls: (1) the roll actuator 210a to unwind the paper wrapping material WM from the roll R; (2) the first drive roller actuator 310a to feed the paper wrapping material WM to the second drive roller 410 and the second idler roller 420; and (3) the second drive roller actuator 410a to rotate the second drive roller 410 so that the paper wrapping material WM is wrapped around the second drive roller 410. Once the length of the paper wrapping material WM wrapped around the second drive roller 410 is approximately equal to the sum of the length and half the width of the incoming load 2000 ( Figure 1J ), the controller 900 stops the actuator. In some embodiments, the controller 900 controls the linear speed of the roll R and / or the drive rollers 310 and 410 to pre-stretch the paper wrapping material WM during this reloading step. For example, in one embodiment, the controller controls the roll actuator and the first drive roller actuator to pre-stretch the paper wrapping material between the roll and the first drive roller. In another embodiment, the controller controls the first drive roller actuator and the second drive roller actuator to pre-stretch the paper wrapping material as it moves between the two drive rollers.

[0033] like Figure 1J As shown, the controller 900 then controls the first roller assembly actuator 300a and the second roller assembly actuator 400a to move the first drive roller 310 and the first idler roller 320 and the second drive roller 410 and the second idler roller 420 back to their respective original positions in preparation for the incoming load 2000.

[0034] In some embodiments, multiple wrapping devices are positioned in series so that the conveying system can convey a load: (1) into and through a first wrapping device, whereby the first wrapping device applies a first paper wrapping material sleeve to the load; and then (2) into and through a second wrapping device, whereby the second wrapping device applies a second paper wrapping material sleeve around the first paper wrapping material sleeve.

[0035] In certain embodiments, the wrapping system includes a top sheet applicator configured to apply a sheet of paper wrapping material to the top surface of the load before the wrapping device forms the paper wrapping material sleeve around the load. This enables the wrapping system to provide five-sided protection for the load. Depending on the embodiment, the top sheet applicator may apply the sheet of paper wrapping material to the top surface of the load before the load reaches the wrapping device, or may be integrated into the wrapping device.

[0036] The paper wrapping material may be any suitable type of paper wrapping material, such as kraft paper, slightly creped paper, etc. The paper wrapping material may have any suitable width and any suitable thickness, and may or may not be stretchable depending on the embodiment.

[0037] In other embodiments, the wrapping system is configured to draw other types of wrapping material (such as plastic stretch film) from a roll and form a wrap of the wrapping material around the cargo load.

Claims

1. A method for forming a wrap of paper wrapping material around a load, the method comprising: applying a paper wrapping material to a front surface of the load by engaging the front surface of the load with the paper wrapping material, the paper wrapping material extending from a roll of paper wrapping material to a first roller on one side of the load and from the first roller to a second roller on an opposite side of the load; applying a paper wrapping material to opposing first and second side surfaces of the load, wherein applying the paper wrapping material to the second side surface comprises unwinding a portion of the length of the paper wrapping material wrapped around the second roller; and A paper wrapping material is applied to the rear surface of the load to form the paper wrapping material sleeve.

2. The method of claim 1, wherein: Applying a paper wrapping material to the front surface of the load includes moving the load relative to the first and second rollers and the paper wrapping material and engaging the paper wrapping material.

3. The method of claim 2, wherein: Applying the paper wrapping material to the first and second side surfaces of the load includes moving the load relative to the first and second rollers such that the paper wrapping material is unrolled from the roll and applied to the first side surface.

4. The method of claim 1, wherein: The length of the paper wrapping material wound around the second roller is greater than the length of the load.

5. The method of claim 1, further comprising winding a second length of paper wrapping material around the second roll after forming the sleeve.

6. The method of claim 5, further comprising driving the first roller to deliver the paper wrapping material from the roll to the second roller, and driving the second roller to wind the second length of paper wrapping material around the second roller.

7. The method of claim 6, further comprising driving the first roller and the second roller in the same rotational direction to deliver the paper wrapping material from the roll to the second roller and to wind the second length of paper wrapping material around the second roller.

8. The method of claim 1, further comprising pre-stretching the paper wrapping material as it is applied to the first and second side surfaces of the load.

9. The method of claim 8, wherein: Applying the paper wrapping material to the first and second side surfaces of the load includes moving the load relative to the first and second rollers such that the paper wrapping material is unrolled from the roll and applied to the first side surface.

10. The method of claim 9, wherein: The second roller includes a second drive roller, and the method further includes pre-stretching the paper wrapping material applied to the second side surface of the load by driving the second drive roller so that the surface speed of the second drive roller is less than the linear speed of the load when the paper wrapping material is unwound from the second drive roller.

11. The method of claim 10, wherein: The first roller includes a first drive roller, and the method further includes pre-stretching the paper wrapping material applied to the first side surface of the load by driving the first drive roller such that a surface speed of the first drive roller is less than a linear speed of the load.

12. The method of claim 11, further comprising monitoring a first rotational parameter of a first idler roller and a second rotational parameter of a second idler roller, the first idler roller being biased toward the first drive roller such that the paper wrapping material extends through a first nip between the first drive roller and the first idler roller, the second idler roller being biased toward the second drive roller such that the paper wrapping material extends through a second nip between the second drive roller and the second idler roller.

13. The method of claim 1, wherein: Applying the paper wrapping material to the first and second side surfaces of the load includes driving the roll via a roll actuator to unwind the paper wrapping material from the roll.

14. The method of claim 1, wherein: Applying a paper wrapping material to the rear surface of the load to form the paper wrapping material sleeve comprises: applying a paper wrapping material to a first portion of a rear surface of the load by moving the first roller across a first portion of a rear surface of the load opposite the front surface of the load; clamping a portion of the paper wrapping material applied to a first portion of the rear surface; cutting said paper wrapping material from said roll; applying the paper wrapping material to the second portion of the rear surface of the load by moving the second roller across the second portion of the rear surface and unwinding a remaining length of the paper wrapping material from the second roller; and The paper wrapping material applied to the second portion of the rear surface is adhered to the paper wrapping material applied to the first portion of the rear surface to form the wrap.

15. The method of claim 14, further comprising applying an adhesive to the paper wrapping material applied to the first portion of the rear surface; and The wrap is formed by applying the paper wrapping material to the second portion of the rear surface such that the paper wrapping material adheres to the adhesive, and the paper wrapping material applied to the second portion of the rear surface adheres to the paper wrapping material applied to the first portion of the rear surface.

16. The method of claim 15, further comprising applying the adhesive after cutting the paper wrapping material from the roll.

17. The method of claim 15, wherein: Applying the adhesive includes applying a tape to the paper wrapping material.

18. The method of claim 15, wherein: Applying the adhesive includes applying a liquid adhesive to the paper wrapping material.

19. The method of claim 14, further comprising cutting the paper wrapping material from the roll after clamping the portion of the paper wrapping material applied to the first portion of the rear surface.

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