JP5933384B2 - Material roll storage device and material roll storage method - Google Patents

Description

  The present invention relates to an apparatus for storing an original roll and a method for storing an original roll, and more particularly to a technique for storing an original roll of a paper sheet.

  In the production of a paper sheet such as a lotion tissue (hereinafter referred to as a lotion tissue) in which a lotion chemical is applied to tissue paper, generally, an original fabric roll on which a long paper sheet is wound is used. The raw roll is normally stored in a storage until it is set in a processing machine such as a folding machine.

FIG. 14 is a view showing the raw fabric roll stored in the storage.
As shown in FIG. 14, the original fabric roll 100 is obtained by winding a paper sheet around a winding core 101, and is stored with the winding core 101 facing the installation surface 102 in the horizontal direction. Since the raw fabric roll 100 made of a paper sheet has hygroscopicity, it absorbs moisture in the storage. When the original fabric roll 100 absorbs a large amount of moisture, the wrapping force of the paper sheet is weakened and the mass is increased at the same time, so that the original fabric roll 100 is deformed into a non-cylindrical shape as indicated by a two-dot chain line. In this way, when the raw roll 100 is deformed, the product quality is deteriorated, for example, wrinkles are generated on the paper sheet. In addition, if the original fabric roll 100 is excessively deformed, the original fabric roll 100 is not suitable for the processing machine, which causes a problem that the processing machine cannot be operated.

  In particular, when a chemical solution is applied to a paper sheet, the raw fabric roll 100 is easily deformed because of its large mass. Furthermore, when a chemical | medical solution contains a moisturizing agent, since a moisturizing agent absorbs moisture, the original fabric roll 100 becomes easier to deform | transform. In addition, when storing the original fabric roll 100 for a long period of time, when storing the original fabric roll 100 in a high humidity environment such as summer, or when storing the large-sized original fabric roll 100, the original material not containing a chemical solution is contained. Even the anti-roll 100 may be greatly deformed.

  Thus, various techniques for preventing moisture absorption of the raw fabric roll have been proposed (see, for example, Patent Document 1).

  Patent Document 1 discloses a storage main body that can store an original fabric wound with paper, a guide member that guides the original fabric when the original is inserted into the storage main body, and the storage main body can be opened and closed. In addition, there is disclosed a storage for raw materials including a lid member that can seal a space in the storage body when closed. According to this stock storage, the raw material absorbs moisture from outside air by inserting the stock into the storage body while guiding it with the guide member, and sealing the space inside the storage body with the lid member. This prevents the occurrence of winding deviation.

  Patent Document 2 discloses a packaging technique for packaging around a cylindrical portion of a paper roll with a wrap. According to the technique of this patent document 2, since the paper roll is packaged by wrapping, it is protected from moisture.

  By the way, in recent years, as the size of the raw roll increases, an apparatus and a method for storing the raw roll are required to be simple. In addition to simplicity, there is also a demand for a technique that can more effectively suppress deformation of the raw roll from the viewpoint of improving the quality of a paper sheet.

JP 2011-230921 A Japanese Patent Laid-Open No. 5-112386

  However, in addition to being a larger apparatus than the original fabric, the stock storage for use in Patent Document 1 is a heavy article made of an alloy, so that the manufacturing cost of the apparatus is high and the handleability is poor. Therefore, the original fabric storage of Patent Document 1 cannot meet the required simplicity. Further, in the configuration in which the paper roll is simply wrapped with a wrap as in the packaging technique of Patent Document 2, there is a limit to the suppression of the deformation of the original roll.

  Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a raw roll storage device and a raw roll storage method that can easily and effectively suppress deformation of the raw roll. It is to provide.

The present invention is grasped by the following composition.
The raw roll storage apparatus of the present invention is a raw roll storage apparatus for storing a paper sheet original roll, and the raw roll has a posture in which a winding core is oriented in a horizontal direction with respect to an installation surface. The storage device is wound around the outer peripheral surface of the raw fabric roll without a gap, wrapped around the wrapping film for tightening the outer peripheral surface, and further wrapped around the outer peripheral surface. And a fastening band for fastening.

  According to this structure, since the original fabric roll is protected from moisture by the wrapping film wound around the outer peripheral surface of the original fabric roll without a gap, moisture absorption of the original fabric roll can be suppressed. Moreover, since the outer peripheral surface of the original fabric roll is tightened by a fastening band in addition to the wrapping film, the form stability of the original fabric roll is remarkably increased as compared with the conventional packaging technique simply wrapped with the wrapping film. Therefore, deformation of the raw roll can be effectively suppressed. And in this invention, since it is not necessary to use a large sized storage, the deformation | transformation of an original fabric roll can be suppressed easily.

  The raw roll storage device of the invention has a roll holder on which the raw roll on which the fastening band is wound is placed, and the roll holder has a receiving surface for receiving and holding the lower part of the raw roll. And the said receiving surface is formed in a curved surface shape along the outer peripheral surface of the said original fabric roll, It is characterized by the above-mentioned.

  According to this configuration, the lower part of the original fabric roll, which is most easily deformed by its own weight, can be stably received and held by the curved receiving surface, thereby preventing the lower part of the original fabric roll from being deformed. Thereby, a deformation | transformation of an original fabric roll can be suppressed more effectively.

  In the raw roll storage device of the above invention, the roll holder has a support portion having the receiving surface on the upper surface, and the support portion is a paper in which a core material and a face material that prevents warpage of the core material are laminated. The face material for forming the receiving surface is provided on the upper surface of the support portion, and the face material is not provided on the lower surface of the support portion. .

  According to this configuration, it is possible to reduce the weight of the roll holder and improve the handleability by configuring the support portion with a light paper laminated plate. Moreover, since there is no face material on the lower surface of the support portion that supports the original fabric roll, the support portion is favorably curved when a load is received from the original fabric roll. On the other hand, if there is a face material on the lower surface of the support portion, the rigidity of the lower surface of the support portion increases, so that deformation of the lower surface of the support portion is suppressed. In this respect, in the present invention, the lower surface of the support portion without the face material is favorably curved, so that the original fabric roll can be stored more stably.

  In the raw roll storage apparatus according to the invention, the raw roll is a roll of a paper sheet coated with a chemical solution.

  According to this structure, when storing the original fabric roll of the paper sheet which apply | coated the chemical | medical solution, a deformation | transformation of an original fabric roll can be suppressed simply and effectively.

  The method for storing a roll of the present invention is a method of storing a roll of paper in which the roll of paper is stored in a posture in which the winding core is oriented horizontally with respect to the installation surface. A wrapping process in which a wrapping film is wound around an outer peripheral surface without gaps, and the outer peripheral surface is tightened with the wrapping film; a tightening band is wound around the wrapping film and the outer peripheral surface is further tightened with the tightening band; , Including.

  According to this structure, since the original fabric roll is protected from moisture by the wrapping film wound around the outer peripheral surface of the original fabric roll without a gap, moisture absorption of the original fabric roll can be suppressed. Moreover, since the outer peripheral surface of the original fabric roll is tightened by a fastening band in addition to the wrapping film, the form stability of the original fabric roll is remarkably increased as compared with the conventional packaging technique simply wrapped with the wrapping film. Therefore, deformation of the raw roll can be effectively suppressed. And in this invention, since it is not necessary to use a large sized storage, the deformation | transformation of an original fabric roll can be suppressed easily.

  The method for storing the raw fabric roll according to the invention uses a roll holder having a receiving surface formed in a curved shape along the outer peripheral surface of the original fabric roll, and lowers the lower portion of the original fabric roll around which the fastening band is wound. It includes a roll holding step of placing and holding on the receiving surface of the roll holder.

  According to this configuration, the lower part of the original fabric roll, which is most easily deformed by its own weight, can be stably received and held by the curved receiving surface, thereby preventing the lower part of the original fabric roll from being deformed. Thereby, a deformation | transformation of an original fabric roll can be suppressed more effectively.

  The method for storing an original fabric roll according to the invention is characterized in that, in the wrapping step, the wrapping film is wound from an outer peripheral surface of the original fabric roll to an end surface of the original fabric roll.

  According to this configuration, since the wrapping film is wound around the end surface of the original roll in addition to the outer peripheral surface of the original roll, the exposed surface of the original roll is reduced, and moisture absorption of the original roll is further reduced. Can do. At the same time, since the tightening force by the wrapping film is also applied to the end surface of the original fabric roll, the form stability of the original fabric roll is further enhanced. As a result, the deformation of the raw roll can be more effectively suppressed.

  The raw roll storage method of the present invention is characterized in that, in the lapping step, the wrapping film is wound around the outer peripheral surface of the raw roll obtained by winding a paper sheet coated with a chemical solution without any gaps.

  According to this structure, when storing the original fabric roll of the paper sheet which apply | coated the chemical | medical solution, a deformation | transformation of an original fabric roll can be suppressed simply and effectively.

  ADVANTAGE OF THE INVENTION According to this invention, the storage apparatus of the original fabric roll and the storage method of an original fabric roll which can suppress the deformation | transformation of an original fabric roll simply and effectively can be provided.

It is a disassembled perspective view of the storage apparatus of the original fabric roll which concerns on this invention. (A) is a front view of a roll holder, (b) is an A arrow view of (a). It is the B section enlarged view of Fig.2 (a). It is a bottom view of a roll holder. It is the C section enlarged view of Fig.2 (a). It is the E section enlarged view of FIG. It is a figure which shows the example of storage of a roll holder. It is a figure which shows a lapping process. It is a figure which shows a band fastening process. It is a figure which shows a roll holding process. It is a conceptual diagram of the apparatus which measures the physical property of a stretch film. It is operation | movement explanatory drawing of the storage apparatus and storage method of an original fabric roll. It is a figure which shows the modification of a roll holder, (a) is a front view of the original fabric roll piled up in two steps, (b) is a front view of the original fabric roll piled up in three steps. It is a front view of the original fabric roll placed on the installation surface of the storage.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described in detail with reference to the accompanying drawings. The same number is attached | subjected to the same element through the whole description of embodiment. The drawings are viewed in the direction of the reference numerals.

(Overall configuration of raw roll storage device)
First, the whole structure of the storage apparatus (henceforth a "storage apparatus") of the original fabric roll of embodiment is demonstrated based on FIG.

  As illustrated in FIG. 1, the storage device 10 according to the embodiment is a device that stores an original fabric roll 11 on which a paper sheet is wound. The raw roll 11 is obtained by winding a paper sheet (for example, lotion tissue) coated with a chemical solution in a coating facility into a roll shape, and once stored in a storage, it is unloaded from the storage. Set in the process folding machine. In the folding machine, the paper sheet is pulled out from the original fabric roll 11 and folded, and the folded paper sheet is packed in a box. The original fabric roll 11 is stored in an orientation in which the winding core 13 is directed horizontally with respect to the installation surface 12 in a storage. For example, the dimensions of the raw roll 11 are 1200 mm, and the axial length L1 of the winding core 13 is 1130 mm.

  The chemical solution includes a humectant (for example, glycerin), a softening agent, a smoothing agent, and the like. Moreover, the winding length of the original fabric roll 11 may be, for example, 10,000 m or more, and in this case, the mass of the original fabric roll 11 is about 400 kg or more including the mass of the chemical solution. In the embodiment, a paper sheet coated with a chemical solution is shown as an example of a paper sheet. However, in the present invention, the paper sheet may not be coated with a chemical solution, and the type of the paper sheet is arbitrary.

(Configuration of each part of storage device)
The storage device 10 includes a wrapping film 15, a fastening band 16, and a roll holder 20.

  The wrapping film 15 is wound around the outer peripheral surface 11a of the raw roll 11 without any gap, and tightens the outer peripheral surface 11a. Exemplifying the dimensions of the wrapping film 15, the thickness is 14 μm, the width w1 is 500 mm, and the use length of the wrapping film 15 that is actually wound around the outer peripheral surface 11 a is about 20 m to 30 m. The wrapping film 15 can be selected from various films, but a polyethylene stretch film that is generally widely used is suitable.

  The fastening band 16 is wound around the wrapping film 15 and further tightens the outer peripheral surface 11a. A fastener 17 such as a so-called stopper can be used to fix the fastening band 16. Exemplifying the dimensions of the fastening band 16, the thickness is 1.7 mm, the width w2 is 50 mm, and the length is 5 m. The number of the fastening bands 16 is arbitrary, but here, two fastening bands 16 are used, and the outer peripheral surface 11 a is fastened as uniformly as possible in the axial direction of the winding core 13. The fastening band 16 can be selected from various members, but considering the cost, it is preferable to use an inexpensive polypropylene band (so-called PP band).

Next, the structure of the roll holder 20 is demonstrated based on FIGS.
As shown in FIG. 1, the roll holder 20 is for placing the original fabric roll 11 around which the fastening band 16 is wound, and has a support portion 21 and a leg portion 22. Exemplifying the dimensions of the roll holder 20, the width W is 1095 mm, the length L2 is 1120 mm, and the height H is 240 mm.

  As shown in FIGS. 2 (a) and 2 (b), the support portion 21 is formed in an arc shape in cross section, and includes a receiving surface 21a on the upper surface. The receiving surface 21 a is a smooth surface formed in a curved shape along the outer peripheral surface 11 a of the original fabric roll 11, and receives and holds the lower portion of the original fabric roll 11. In FIG. 2A, the curvature radius R2 of the receiving surface 21a is set to be approximately the same as the radius R1 of the original roll 11, but the size of the curvature radius R2 is arbitrary depending on the performance required for the roll holder 20. Can be set. 2A, the width of the support portion 21 (the width of the roll holder 20) W is set to be smaller than the body diameter D of the raw roll 11, and in FIG. 2B, the length of the support portion 21 is set. (Length of the roll holder 20) L2 was set to be approximately the same as the length L1 of the raw roll 11, but the size of these width W and length L2 also depends on the performance required for the roll holder 20, It can be set arbitrarily. For example, the length L2 may be set to about half of the length L1.

  As shown in FIG. 3, the support portion 21 can be composed of a paper laminate in which a core material 23 and a face material 25 that prevents warpage of the core material 23 are laminated. In this case, it is preferable that the upper surface of the support portion 21 is provided with the face material 25 that forms the receiving surface 21 a, while the lower surface 21 b of the support portion 21 is not provided with the face material. When the support portion 21 is configured in this manner, the lower surface 21b without a face material can be favorably curved with respect to a load (indicated by a white arrow) received from the raw fabric roll 11, as indicated by a two-dot chain line. .

  Returning to FIG. As shown in FIGS. 2A and 2B, the leg portion 22 supports the support portion 21 by floating from the installation surface 12 (see FIG. 1). The leg portion 22 includes a plurality of (in this example, 10) first plate members 22 a extending along the direction perpendicular to the axis of the winding core 13 and a plurality of (in this example, two) extending in the axial direction of the winding core 13. And a second plate member 22b.

  The plurality of first plate members 22 a are provided side by side at equal intervals in the axial direction of the winding core 13. The lower end of each first plate member 22a is grounded to the installation surface 12 (see FIG. 1). The upper end of each first plate member 22a is formed in an arc shape along the lower surface 21b of the support portion 21, and is fixed to the lower surface 21b. The means for fixing the upper end of the first plate 22a to the lower surface 21b can be selected from various means such as adhesion and fitting. Moreover, you may attach the upper end of the 1st board | plate material 22a to the lower surface 21b so that attachment or detachment is possible.

  As shown in FIG. 4, the plurality of second plate members 22 b are provided at symmetrical positions with respect to the center 21 c in the width direction of the support portion 21. The second plate member 22b is fitted to the first plate member 22a from below so as to intersect with the plurality of first plate members 22a, and the lower end is grounded to the installation surface 12 (see FIG. 1).

  As shown in FIG. 5, the first plate material 22 a and the second plate material 22 b can be configured by a paper-made laminated plate in which a core material 23 and a face material 25 are laminated, like the support portion 21. In this case, it is preferable to provide the face material 25 on both surfaces in the thickness direction of the core material 23, and by providing the face material 25 on both surfaces in the thickness direction of the core material 23, the compression resistance strength of the leg portion 22 can be increased. .

  As the laminated plate constituting the support portion 21 and the leg portion 22, a sandwich panel that has been widely used can be used. For example, for the laminated plate for the support portion 21, a panel is used in which a face material 25 made of polysand five-layer paper is provided on one side in the thickness direction of a core material 23 in which corrugated cores are continuously laminated. Moreover, the panel which provided the face material 25 which consists of a poly sand five-layer paper can be used for the laminated sheet for the leg parts 22 on the both surfaces of the thickness direction of the core material 23 which laminated | stacked the corrugated cardboard core continuously. In the roll holder 20 of this embodiment, the performance which can bear the load of 1200 kg or more can be acquired by comprising the support part 21 and the leg part 22 with a laminated board.

  Furthermore, as shown in FIG. 6, the core member 23 may be provided with a large number of holes 26 that penetrate in the thickness direction of the core member 23 via partition walls 27. By providing a large number of hole portions 26 in the core member 23, the strength of the core member 23 can be increased, and thereby further weight reduction and strength improvement of the roll holder 20 can be realized. Further, by forming the holes 26 in a plane-filled shape (for example, a triangle or a hexagon), a structure (for example, a honeycomb structure) in which the holes 26 are efficiently arranged can be obtained. Thereby, the intensity | strength of the core material 23 can further be raised.

  Since the roll holder 20 configured as described above has a flat shape as a whole, it can be stored and stored compactly when not in use. For example, as shown in FIG. 7, the receiving surfaces 21 a are slightly shifted in the width direction to face each other, the roll holders 20 that face each other are stacked, and the gap between the stacked roll holders 20 and the wall is stacked. In addition, the other roll holders 20 can be stacked vertically.

(Storage method of raw roll)
Subsequently, a method for storing the original fabric roll according to the embodiment (hereinafter referred to as “storage method”) will be described with reference to FIGS.

  In this embodiment, the storage method is a method of storing the raw fabric roll 11 in a storage using the storage device 10 (see FIG. 1), and includes a lapping step, a band tightening step, and a roll holding step.

  As shown in FIG. 8, in the lapping process, roll support means 30 including a pair of support columns 31 and a support shaft 32 attached to the upper part of the pair of support columns 31 is used. First, the support shaft 32 is passed through the winding core 13, and the raw fabric roll 11 is set on the roll support means 30. Next, the wrapping film 15 is pulled out from the winding core 15 a while being rotated in the direction indicated by the arrow (1), and is wound around the outer peripheral surface 11 a of the original fabric roll 11. At this time, the outer peripheral surface 11a is fastened by the wrapping film 15 by winding the wrapping film 15 while pulling. Then, while the wrapping film 15 is moved in the axial direction of the winding core 13 (direction indicated by the arrow (2)), the wrapping film 15 is wound without gap so that the wrapping films 15 overlap each other on the outer peripheral surface 11a. Furthermore, the wrapping film 15 is also wound from the outer peripheral surface 11a of the raw roll 11 to the end surface 11b.

  As shown in FIG. 9, in the band tightening step, after the tightening band 16 is wound around the wrapping film 15 along the circumferential direction of the original roll 11, the tightening band 16 is tightened and both ends of the tightening band 16 are tightened. The part is fixed with a fastener 17. Thereby, the outer peripheral surface 11 a of the original fabric roll 11 is further tightened by the tightening band 16.

  As shown in FIG. 10, in the roll holding step, first, the roll holder 20 is placed on the installation surface 12 of the storage. And the original fabric roll 11 removed from the roll support means 30 (refer FIG. 9) is conveyed using a forklift etc., and the lower part of the original fabric roll 11 is mounted on the receiving surface 21a of the roll holder 20, and is hold | maintained. Thus, the storage work of the raw fabric roll 11 is completed. In addition, if the length L2 of the roll holder 20 (see FIG. 2B) is set to the same level as the length L1 of the original fabric roll 11 (see FIG. 2B), the original fabric roll is used using a forklift or the like. When the lower part of the roll 11 is placed on the receiving surface 21a, it is only necessary to place the original roll 11 so that the end of the roll holder 20 and the end of the original roll 11 are aligned. It becomes easy to recognize the position.

(Experimental example)
Next, an experimental example in which the tensile strength, tension, and contraction force of the wrapping film 15 are examined will be described. Note that the present invention is not limited to experimental examples.

○ Type of sample wrapping film 15: Stretch film Material of wrapping film 15: Dimension of polyethylene wrapping film 15: thickness 1.4 μm, width 500 mm
Method As shown in FIG. 11, the wrapping film 15 is drawn out 100 mm in advance, and a spring balance 35 is connected to the leading end of the drawn wrapping film 15 via a film winding plate 33. The wrapping film 15 is pulled with the spring balance 35, and the tensile strength, tension, and contraction force of the wrapping film 15 are measured with the spring balance 35.

○ Results Table 1 shows the measurement results (N = 5).

  As shown in Table 1, the force (tensile strength) required for cutting the wrapping film 15 was 8.4 kgf. Judging from the maximum value of the tension, it can be said that 7.1 to 7.5 kgf is necessary to wind the wrapping film 15 around the original roll 11 while pulling. Moreover, the fastening force of the wrapping film 15 with respect to the raw fabric roll 11 is estimated to be 6.32 kgf from the measurement result of the contraction force. Moreover, when the wrapping film 15 is wound twice on the original fabric roll 11, the fastening force of the wrapping film 15 is estimated to be about 6.32 × 2 = 12.64 kgf.

The operation and effect of the embodiment described above will be described with reference to FIG.
As shown in FIG. 12, since the original fabric roll 11 is protected from moisture by the wrapping film 15 wound around the outer peripheral surface 11a of the original fabric roll 11 without a gap, moisture absorption of the original fabric roll 11 can be suppressed. . Further, since the outer peripheral surface 11a of the original fabric roll 11 is also tightened by the fastening band 16 (see FIG. 10) in addition to the wrapping film 15, the original fabric roll 11 is compared with the conventional packaging technique simply wrapped with the wrapping film 15. The morphological stability of is significantly increased. Therefore, it is possible to effectively suppress the deformation of the large-sized and large-sized raw roll 11. And since it is not necessary to use a large storage, the deformation | transformation of the raw fabric roll 11 can be suppressed easily.

  Further, by stably receiving the lower part of the raw roll 11 that is most easily deformed by its own weight with the curved receiving surface 21 a of the roll holder 20, the lower part of the original roll 11 can be prevented from being deformed. Thereby, a deformation | transformation of the original fabric roll 11 can be suppressed more effectively.

  Moreover, in the roll holder 20, the lower part of the original fabric roll 11 is received by the receiving surface 21a which is a smooth curved surface. On the other hand, it is also possible to adopt a configuration in which the receiving surface is positively deformed by providing a bending line on the receiving surface. However, in this case, although the flexibility of the receiving surface can be obtained, the surface of the original fabric roll is recessed due to the bent corners of the receiving surface, and a recessed mark remains on the surface of the original fabric roll. In this respect, according to the present embodiment, the lower surface of the original fabric roll 11 is received by the receiving surface 21a which is a smooth curved surface, so that the surface of the original fabric roll 11 can be maintained as a smooth surface.

  Further, in the roll holder 20, the support portion 21 is supported by being lifted from the installation surface 12 by the leg portion 22. If there is no leg portion and the support portion is placed directly on the installation surface, the lower part of the raw roll 11 that is most easily deformed by its own weight receives a large drag from the installation surface 12. With this, the lower part of the original fabric roll 11 is crushed. In this respect, according to the present embodiment, since the support portion 21 is supported by being lifted from the installation surface 12 by the leg portion 22, there is no fear that the lower portion of the original fabric roll 11 is crushed. Thereby, a deformation | transformation of the raw fabric roll 11 can be suppressed more effectively.

  Moreover, the weight reduction of the roll holder 20 and the improvement of handleability can be aimed at by comprising the support part 21 and the leg part 22 with the light laminated board made from paper. And the support part 21 can be favorably curved by not providing a face material in the lower surface 21b of the support part 21 which supports the original fabric roll 11. FIG. On the other hand, when a face material is provided on the lower surface of the support portion 21, the rigidity of the lower surface of the support portion 21 increases, so that deformation of the lower surface of the support portion 21 is suppressed. In this regard, in this embodiment, the lower surface 21b of the support portion 21 is favorably curved, so that the original fabric roll 11 can be stored more stably.

  Further, since the wrapping film 15 is wound around the end surface 11b of the original fabric roll 11 in addition to the outer peripheral surface 11a of the original fabric roll 11, the end portion 15b of the wrapping film 15 formed on the end surface 11b side causes the original fabric to roll. The exposed surface of the roll 11 is reduced, and the moisture absorption of the raw fabric roll 11 can be further reduced. At the same time, since the tightening force by the end portion 15b is also applied to the end surface 11b of the original fabric roll 11, the form stability of the original fabric roll 11 is further enhanced. As a result, the deformation of the raw roll 11 can be more effectively suppressed.

(Modification of roll holder)
Next, a modification of the roll holder will be described with reference to FIG.
As shown to Fig.13 (a), the roll holder 40 of a modified example is used when stacking the original fabric roll 11 in a stacking shape. Here, one upper fabric roll 11 is arranged above the valley 41 between the two adjacent rolls 11 on the lower side.

  The roll holder 40 includes a receiving surface 21 a that receives the lower portion of the upper-side raw fabric roll 11, and a fitting portion 42 that fits into the valley 41 from above. The fitting portion 42 has a pair of contact surfaces 42 a that contact the wrapping film 15 in the valley 41. Each contact surface 42 a is formed in a curved shape along the outer peripheral surface 11 a of the original fabric roll 11.

  In this way, by using the roll holder 40 having the receiving surface 21a and the fitting portion 42 at the top and bottom, the raw rolls 11 can be stably stacked in a plurality of stages in a stacked manner. In other words, the substantially triangular roll holder 40 is disposed in the substantially triangular gap formed by the two original rolls 11 on the lower stage side and the one original roll 11 on the upper stage side. The original fabric roll 11 can be stably stacked on the two original fabric rolls 11. Thereby, for example, as shown in FIG. 13B, it is also possible to store the raw rolls 11 by stacking three or more stages. Moreover, since the original fabric roll 11 can be arrange | positioned without gap, the storage efficiency of the original fabric roll 11 can also be improved.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  For example, in the embodiment, the raw roll is stored using the roll holder, but the roll holder may not be used depending on the specifications and storage conditions of the raw roll.

  In the embodiment, a paper roll holder is used. However, the material of the roll holder is not particularly limited to paper, and can be selected from various materials such as synthetic resin.

DESCRIPTION OF SYMBOLS 10 Storage apparatus 11 Original fabric roll 11a Outer peripheral surface 11b End surface 12 Installation surface 13 Winding core 15 Wrapping film 16 Tightening band 20 Roll holder 21 Support part 21a Receiving surface 21b Lower surface 22 Leg part 40 Roll holder

Claims (5)

A raw roll storage device for storing a roll of paper sheet,
The original fabric roll is stored in a posture in which the winding core is horizontally oriented with respect to the installation surface,
The storage device is
A wrapping film that is wound around the outer peripheral surface of the original fabric roll without any gap, and tightens the outer peripheral surface;
A tightening band wound on the wrapping film and further tightening the outer peripheral surface;
A roll holder for placing the original roll on which the fastening band is wound;
I have a,
The roll holder has a receiving surface that receives and holds the lower part of the raw fabric roll, and a support portion that includes the receiving surface on an upper surface.
The receiving surface is formed in a curved shape along the outer peripheral surface of the raw roll,
The support portion is composed of a paper laminated plate in which a core material and a face material for preventing warpage of the core material are laminated,
An apparatus for storing an original fabric roll, wherein the face material for forming the receiving surface is provided on an upper surface of the support portion, whereas the face material is not provided on a lower surface of the support portion .   The storage device for an original fabric roll according to claim 1, wherein the original fabric roll is obtained by winding a paper sheet coated with a chemical solution. A method for storing an original roll, wherein the raw roll roll storage device according to claim 1 or 2 is used to store the original roll of paper sheet in a posture in which the winding core is oriented horizontally with respect to the installation surface. ,
A wrapping step of winding a wrapping film around the outer peripheral surface of the original fabric roll without a gap, and tightening the outer peripheral surface with the wrapping film;
A band tightening step of winding a tightening band on the wrapping film and further tightening the outer peripheral surface with the tightening band;
Using a roll holder having a receiving surface formed in a curved shape along the outer peripheral surface of the raw fabric roll,
A roll holding step of holding and holding the lower part of the raw roll around which the fastening band is wound on the receiving surface of the roll holder;
A method for storing an original fabric roll, comprising: The method for storing an original fabric roll according to claim 3 , wherein, in the wrapping step, the wrapping film is wound from an outer peripheral surface of the original fabric roll to an end surface of the original fabric roll. 5. The method for storing an original fabric roll according to claim 3 or 4 , wherein, in the wrapping step, the wrapping film is wound around the outer peripheral surface of the original fabric roll on which the paper sheet coated with the chemical solution is wound without gaps. .

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