Continuous corrugated cardboard material with palette, and box-making system

Abstract

To suppress the occurrence of a defective part in a continuous corrugated cardboard material.SOLUTION: A continuous corrugated cardboard material 10 with a pallet includes: a bellow folded continuous corrugated cardboard material 1 formed by folding back a rectangular sheet in a belt-like continuous corrugated cardboard web 1W in a second direction perpendicular to a first direction on a plane along each folding line F that extends linearly along the first direction, and having a rectangular parallelepiped shape in which sheets 2 are stacked vertically; a palette 20 having a placement surface 21 extending along the first direction and the second direction, and including the continuous corrugated cardboard material 1 placed above the placement surface 21; and a cushioning sheet 30 having a flat surface extending in both the first direction and the second direction, a thickness along a vertical direction and a predetermined cushioning property, and interposed between the placement surface 21 of the palette 20 and the continuous corrugated cardboard material 1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a palletized continuous corrugated cardboard material including a continuous corrugated cardboard material and a pallet on which the continuous corrugated cardboard material is placed, and to a box-making system using the palletized continuous corrugated cardboard material. [Background technology]

[0002] As a material for making boxes, continuous corrugated cardboard material with accordion folds (also called "fanfold") is known. Continuous corrugated cardboard material is a continuous band-like corrugated cardboard web with folds along the width direction that are spaced at equal intervals in the extension direction, and the corrugated cardboard web is folded back alternately at these folds. In such continuous corrugated cardboard material with accordion folds, the corrugated cardboard web is folded and stacked one on top of the other, and folded into a rectangular parallelepiped package shape. For example, the following Patent Document 1 discloses a palletized continuous cardboard material including the above-mentioned continuous cardboard material and a pallet on which the continuous cardboard material is placed. In this palletized continuous cardboard material, the continuous cardboard material is placed directly on the placement surface of the pallet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-113113 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology of Patent Document 1, the bottom sheet, which is the bottom layer of the continuous cardboard material, comes into direct contact with the pallet, so the uneven shape of the pallet's mounting surface or the shape of a foreign object between the bottom sheet and the pallet's mounting surface may be transferred to the bottom sheet, causing damage or deformation to the bottom sheet. A damaged or deformed sheet may become a defective part that cannot be used for applications such as box making or packaging, and may have to be discarded. Therefore, there is room for improvement in preventing the occurrence of defective parts in palletized continuous cardboard material.

[0005] The present invention was invented in consideration of the above problems, and one of its objectives is to suppress the occurrence of defective parts in continuous corrugated cardboard material. However, other objectives of the present invention are to achieve actions and effects derived from the configurations shown in the "Mode for carrying out the invention" described below, which are actions and effects that cannot be obtained with conventional technology. [Means for solving the problem]

[0006] The continuous palletized corrugated cardboard material disclosed herein has the following configurations (1) to (10). (1) A continuous corrugated cardboard material in an accordion-folded manner, in which rectangular sheets in a continuous band-like corrugated cardboard web are folded back in a second direction perpendicular to the first direction at each fold line extending linearly along a first direction, and the sheets are stacked vertically to form a rectangular parallelepiped package; A pallet having a placement surface extending along the first direction and the second direction, the continuous cardboard material being placed above the placement surface; a cushioning sheet having a flat surface extending in both the first direction and the second direction, a thickness along the vertical direction, and a predetermined cushioning property, the cushioning sheet being interposed between the placement surface of the pallet and the continuous cardboard material. A continuous corrugated board material with a pallet.

[0007] (2) The buffer sheet is a paper sheet. The continuous corrugated cardboard material with pallets according to (1) is characterized in that (3) The buffer sheet is a plastic sheet. The continuous corrugated cardboard material with pallets according to (1) is characterized in that

[0008] (4) The cushioning sheet is a cardboard sheet. The continuous palletized corrugated board material according to (2) or (3) above.

[0009] (5) The buffer sheet is two or more sheets stacked vertically. The continuous pallet-attached corrugated board material according to any one of (1) to (4) above,

[0010] (6) The surface area of ​​the buffer sheet is equal to or greater than the surface area extending in the first direction and the second direction of a lower sheet located at the bottom among the sheets stacked in the vertical direction in the continuous cardboard material. The continuous pallet-attached corrugated board material according to any one of (1) to (5) above, (7) The area of ​​the surface of the buffer sheet is equal to or greater than the area of ​​the placement surface of the pallet. The continuous pallet-attached corrugated board material according to any one of (1) to (6) above,

[0011] (8) The area of ​​a surface extending in the first direction and the second direction of a lower sheet located at the bottom layer among the sheets stacked in the vertical direction in the continuous cardboard material is equal to or larger than the area of ​​the placement surface of the pallet. The continuous pallet-attached corrugated board material according to any one of (1) to (7) above,

[0012] (9) The continuous cardboard material is provided with a sheet-like lower joint portion extending from an edge of a lower sheet located at the bottom of the sheets stacked in the vertical direction that is not connected to the sheets other than the lower sheet in the second direction. The continuous pallet-attached corrugated board material according to any one of (1) to (8) above,

[0013] (10) The continuous cardboard material is provided with a sheet-like upper joint portion extending from an edge of an upper sheet located at the top of the sheets stacked in the vertical direction on a side that is not connected to the sheets other than the upper sheet in the second direction. The continuous pallet-attached corrugated board material according to any one of (1) to (9) above,

[0014] The box-making system disclosed herein also includes the following configurations (11) and (12). (11) A box making system for manufacturing cardboard boxes using the palletized continuous cardboard material according to any one of (1) to (10) as a box making material, The pallet-attached continuous cardboard material is oriented such that the lower sheet, which is located at the bottom of the sheets stacked in the vertical direction in the continuous cardboard material, faces downward with its front surface, which is the surface facing the outside of the cardboard box. A box-making system characterized by:

[0015] (12) A box making system for manufacturing cardboard boxes using the palletized continuous cardboard material according to any one of (1) to (10) as a box making material, The pallet-attached continuous cardboard material is oriented such that the upper sheet, which is located in the uppermost layer among the sheets stacked in the vertical direction in the continuous cardboard material, faces upward with its back surface, which will be the surface facing the inside of the cardboard box when the continuous cardboard material is used to manufacture the cardboard box. A box-making system characterized by: Effect of the Invention

[0016] According to the present invention, the occurrence of defective parts in continuous cardboard material can be suppressed. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is an exploded perspective view of the continuous cardboard material with a pallet of the present embodiment. [Diagram 2] FIG. 1 is an explanatory diagram of a box-making system that uses continuous palletized corrugated cardboard material. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, as an embodiment, a continuous corrugated board material with a pallet will be described. In this embodiment, the directions are defined as follows, based on the directions of a continuous cardboard material with a pallet placed on a horizontal surface. The machine direction (first direction, marked "CD" in the drawings) and the cross direction (second direction, marked "MD" in the drawings) are horizontal directions along which the plane of the sheet (fold) extends. These machine direction and cross direction are perpendicular to each other. The height direction (marked "TD" in the drawings) is vertical and perpendicular to both the machine direction and the cross direction. This height direction corresponds to the top-to-bottom direction in which the sheets are stacked.

[0019] The MD (Machine Direction) direction is also called the "flow direction" and is the direction in which the process of a box-making system using continuous corrugated cardboard progresses from upstream to downstream. The CD (Cross Direction) direction is the direction perpendicular to the MD direction on a plane along the MD direction. The TD (Transverse Direction) direction is the direction perpendicular to both the MD and CD directions. Additionally, unless otherwise specified, the expression "numeric value X to numeric value Y" in this embodiment means a range of numeric value X or more and numeric value Y or less.

[0020] [First embodiment] [1. Configuration] As shown in Fig. 1, the palletized continuous cardboard material 10 includes the continuous cardboard material 1, a pallet 20 for placing the continuous cardboard material 1, and a buffer sheet 30 interposed between the continuous cardboard material 1 and the pallet 20. The palletized continuous cardboard material 10 is an article in which the continuous cardboard material 1 is placed on the pallet 20 from the standpoint of improving storage and transportability. The buffer sheet 30 is provided in the palletized continuous cardboard material 10 to prevent damage and deformation of the continuous cardboard material 1 placed on the pallet 20.

[0021] [1.1. Continuous cardboard material] The continuous cardboard material 1 of this embodiment is a cardboard material in which a continuous strip-like cardboard web 1W is folded in an accordion-like manner to form a package in the shape of a rectangular parallelepiped. In this continuous cardboard material 1, rectangular sheets 2 (only a portion of which is indicated by a reference symbol in FIG. 1) are folded back at folds F (only a portion of which is indicated by a reference symbol in FIG. 1) in a cardboard web 1W, and the folded back sheets 2 are stacked in the height direction. In other words, each layer of the cardboard web 1W folded accordion-like corresponds to a sheet 2.

[0022] The folds F are lines for folding the cardboard web 1W into an accordion-like shape. The folds F are provided linearly along the width direction on the extending surface of the cardboard web 1W. A plurality of folds F are provided at equal intervals in the extending direction of the cardboard web 1W. In this embodiment, the corrugations (waves) formed on the core of the continuous cardboard material 1 are provided perpendicular to the extending direction along the width direction.

[0023] The continuous corrugated cardboard material 1 of this embodiment can employ various types of corrugated cardboard, as listed below. Double-sided cardboard: Cardboard with liners on both sides of the core Single-sided cardboard: Cardboard with a liner on one side of the core

[0024] The above-mentioned double-sided cardboard includes not only single-flute cardboard, which is made up of three base papers (materials) corresponding to one core and two liners, but also multi-flute cardboard, such as so-called ``double-sided cardboard'' or ``triple-sided cardboard,'' which is made up of three or more cores (including one or more inner liners) and five or more base papers corresponding to each of two liners.

[0025] Furthermore, the continuous cardboard material 1 is provided with a bottom joint portion 50 for joining another continuous cardboard material with a pallet (not shown in FIG. 1; see FIG. 2) to this continuous cardboard material 1. The bottom joint portion 50 is attached to the lower sheet 2D which is the lowest layer in the continuous cardboard material 1, and is a sheet-like portion extending from an edge 2X of the lower sheet 2D on a side that is not connected in the horizontal direction to sheets 2 other than the lower sheet 2D (the left side on the paper surface of FIG. 1). In other words, the edge 2X from which the bottom joint portion 50 extends is the edge of the lower sheet 2D on the side where the fold F is not provided.

[0026] The lower joint portion 50 shown in FIG. 1 is constituted by an extension sheet that is integrally connected to the lower sheet 2D via a lower fold FB. The bottom fold FB is the fold located at the bottom on one side in the horizontal direction, and is provided along the edge 2X of the bottom sheet 2D. While the fold F is a fold that folds the sheet 2 back, the bottom fold FB is a fold that does not fold the sheet 2 back, but rather connects the bottom joint portion 50 to the bottom sheet 2D. In this respect, the bottom fold FB is a fold that is different from the fold F. If the bottom joint portion 50 were folded back to the other side in the horizontal direction (to the right side of the paper in FIG. 1) at the bottom fold FB, the bottom joint portion 50 would be folded over the bottom side of the bottom sheet 2D. In other words, the bottom joint portion 50 can be said to be the cardboard web 1W that constitutes the continuous cardboard material 1 that has been folded back (unfolded) at the bottom fold FB.

[0027] [1.2.Palette] The pallet 20 is a loading platform on which the continuous cardboard material 1 is placed, and is intended to ensure ease of transport, such as loading and unloading, of the continuous cardboard material 1, and ease of storage when the continuous cardboard material 1 is stored. The pallet 20 is provided with a mounting surface 21 on which the continuous cardboard material 1 is placed. The mounting surface 21 is a planar portion that extends horizontally when the pallet 20 is placed on a horizontal surface, and forms an upward facing surface. From the viewpoint of ensuring the above-mentioned transportability and storability, it is preferable to use a material for the pallet 20 that is stiffer than the continuous cardboard material 1. Examples of materials for the pallet 20 include wood, plastic materials, and cardboard materials.

[0028] [1.3. Cushioning sheet] A buffer sheet 30 is interposed between the placement surface 21 of the pallet 20 and the continuous cardboard material 1. The buffer sheet 30 is a member disposed between the lower sheet 2D of the continuous corrugated cardboard material 1 and the placement surface 21 of the pallet 20, and prevents the lower sheet 2D and the placement surface 21 from coming into direct contact with each other. This buffer sheet 30 is made of a sheet material that has a flat surface extending both vertically and horizontally, a thickness along the height direction (up and down direction), and a predetermined buffer (cushion) property. Only the buffer sheet 30 is provided between the placement surface 21 of the pallet 20 and the continuous cardboard material 1, and no other members are provided other than the buffer sheet 30.

[0029] The specified cushioning property of the buffer sheet 30 is a cushioning function that prevents the lower sheet 2D of the continuous cardboard material 1 placed on this buffer sheet 30 from being damaged or broken due to the transfer of the uneven shape of the pallet 20 or the shape of foreign objects. The cushioning properties of the buffer sheet 30 can be appropriately set in consideration of the weight of the continuous corrugated cardboard material 1, depending on the material used for the buffer sheet 30, the thickness of the sheet, and other specifications.

[0030] It is preferable that the longitudinal and lateral dimensions of the buffer sheet 30 satisfy the following first and second dimensions so that the buffer sheet 30 supports the entire surface of the lower sheet 2D and covers the entire surface of the support surface 21 of the pallet 20. The first dimension is equal to or greater than the longitudinal and lateral dimensions of the lower sheet 2D A second dimension that is equal to or greater than the longitudinal and lateral dimensions of the placement surface 21 of the pallet 20 In other words, the area of ​​the surface of the buffer sheet 30 along the vertical and horizontal directions (referred to as the "area of ​​the buffer sheet 30") is greater than or equal to the area of ​​the surface of the lower sheet 2D along the vertical and horizontal directions (referred to as the "area of ​​the lower sheet 2D"), and is greater than or equal to the area of ​​the supporting surface 21 of the pallet 20.

[0031] Moreover, the vertical and horizontal dimensions of the lower sheet 2D are preferably larger than the vertical and horizontal dimensions of the mounting surface 21 of the pallet 20. In other words, the area of ​​the lower sheet 2D is preferably equal to or larger than the area of ​​the mounting surface 21 of the pallet 20. The relationship between the area of ​​the buffer sheet 30, the area of ​​the lower sheet 2D, and the area of ​​the placement surface 21 of the pallet 20 is expressed by the following inequality. Area of ​​the buffer sheet 30 ≧ Area of ​​the lower sheet 2D ≧ Area of ​​the placement surface 21

[0032] For example, a paper sheet or a plastic sheet is used as the buffer sheet 30. A specific example of the paper buffer sheet 30 is a paper cardboard sheet. A specific example of the plastic buffer sheet 30 is a plastic cardboard sheet. Here, as an example, a case where a sheet of cardboard paper is used as the buffer sheet 30 will be taken.

[0033] In this case, the cushioning properties of the buffer sheet 30 can be appropriately set according to the specifications such as the thickness of the cardboard sheet, the grade of the liner, the thickness (flute) of the cardboard sheet, etc. In other words, the cardboard sheet used for the buffer sheet 30 has a predetermined cushioning property. As long as the cardboard sheet has a predetermined cushioning property, various types of cardboard similar to those described for the continuous cardboard material 1 can be used. That is, the cardboard sheet can be made of the above-mentioned double-sided cardboard or single-sided cardboard, and it is preferable to use double-sided cardboard from the viewpoint of ensuring cushioning property. Double-sided cardboard includes the above-mentioned single-flute cardboard as well as the above-mentioned multi-flute cardboard.

[0034] The pallet-attached continuous cardboard material 10 shown in Fig. 1 is provided with a plurality (two or more) of paper-made cardboard sheets stacked vertically as a buffer sheet 30. Specifically, the buffer sheet 30 in Fig. 1 uses cardboard sheets 30A and 30B stacked vertically. Cardboard sheets 30A and 30B in FIG. 1 are continuous cardboard sheets (continuous sheets) formed by folding back a continuous strip-like sheet. In this case, cardboard sheets 30A and 30B are connected via a linear fold FX along the vertical direction, and cardboard sheet 30B is folded over the underside of cardboard sheet 30A at fold FX.

[0035] As another example, the cardboard sheets 30A and 30B may be separate sheets. When the cardboard sheets 30A and 30B are separate sheets, the cardboard sheets 30A and 30B may have a common configuration, or the cardboard sheets 30A and 30B may have different configurations.

[0036] The number of cardboard sheets used as the buffer sheet 30 and the thickness in the vertical direction can be appropriately set from the viewpoint of ensuring a predetermined buffering property. The more the number of cardboard sheets and the thicker the cardboard sheets are, the easier it is to ensure the buffering property. From the above, it is preferable that the thickness and number of cardboard sheets used as the buffer sheet 30 be such that one or more cardboard sheets have a thickness of 3 mm or more in order to ensure buffering properties, stability, and transportability.

[0037] If the number of cardboard sheets is too large, the buffer sheet 30 will be bulky and heavy, which may make it difficult to ensure stability when the continuous cardboard material 1 is placed on it and may impair the transportability of the palletized continuous cardboard material 10. Also, if the cardboard sheets are too thick, they may be easily crushed depending on the strength of the liner and core. Therefore, the thickness and number of cardboard sheets are preferably set in the range of 3 mm to 10 mm and 1 to 5 sheets, and more preferably the thickness is set in the range of 4 mm to 8 mm and 2 to 4 sheets.

[0038] [1.4. Box-making system] Next, the case where the continuous corrugated cardboard material 1 is used as a box-making material will be described with attention focused on feeding into the box-making system 100. When the continuous cardboard material 1 is used as a box-making material, a palletized continuous cardboard material 10 including the continuous cardboard material 1 is applied to a box-making system 100 as shown in Fig. 2. The box-making system 100 is an apparatus for manufacturing cardboard boxes using the continuous cardboard material 1 as a box-making material. The box-making system 100 carries out various processes, such as a feeding process in which sheets 2 are sequentially fed out of the continuous cardboard material 1 of the palletized continuous cardboard material 10, a cutting process in which the sheet is cut out according to the unfolded pattern of the box, and a folding process in which the sheet is folded into the shape of the box.

[0039] 2, a rotor 110 having a triangular shape in a side view is provided as a member supporting the sheet 2 (corrugated cardboard web 1W) in the feed process, which is the most upstream portion of the box making system 100. The sheet 2 is hung over the rotor 110 and arranged (so-called "paper threading") along a path (not shown) of the box making system 100 via guide rolls 114. The sheet 2 lifted by the rotating body 110 is unfolded while being lifted upward from the top surface of the continuous cardboard material 1, and is transported downstream in the transport direction MD. In this specification, the term "unfolding" refers to folding back the sheet 2 that has been folded back at the fold line F into an accordion fold, back at the fold line F.

[0040] Arranged upstream of the rotating body 110 in the conveying direction are a palletized continuous cardboard material 10 including a continuous cardboard material 1 that has been threaded through the box-making system 100 and is in use, and another palletized continuous cardboard material 10'. Another palletized continuous corrugated board material 10' is positioned on the opposite side of the palletized continuous corrugated board material 10 from the box making system 100.

[0041] One of the continuous cardboard materials 1 in the two palletized continuous cardboard materials 10, 10' is referred to as the "first continuous cardboard material 1A" and the other is referred to as the "second continuous cardboard material 1B." A first continuous cardboard material 1A of the palletized continuous cardboard material 10 has been threaded through the box-making system 100. A second continuous cardboard material 1B has not been threaded through the box-making system 100 and is waiting.

[0042] As shown in FIG. 1, a first continuous corrugated cardboard material 1A of the pallet-attached continuous corrugated cardboard material 10 is provided with a bottom joint portion 50 extending from an edge 2X of a bottom sheet 2D. On the other hand, the second continuous cardboard material 1B of the pallet-attached continuous cardboard material 10' has an upper joint portion 50 extending from the edge 2Y of the upper sheet 2U. The upper joint portion 51 is a portion for joining the first continuous cardboard material 1A to the second continuous cardboard material 1B.

[0043] The upper joint portion 51 is attached to the upper sheet 2U located in the uppermost layer of the sheets 2 stacked vertically in the second continuous cardboard material 1B, and is a sheet-like portion extending from an edge 2Y on the side of the upper sheet 2U that is not connected in the horizontal direction to sheets 2 other than the upper sheet 2U (the right side on the paper surface of FIG. 2). In other words, the edge 2Y from which the upper joint portion 51 extends is the edge of the upper sheet 2U on the side where the fold F is not provided.

[0044] The upper joint margin 51 is composed of an extension sheet, which is a sheet-like portion integrally connected to the upper sheet 2U via an upper fold FB'. The upper fold FB' is a fold arranged at the top on the other side in the horizontal direction, and is provided along the edge 2Y of the upper sheet 2U. While the fold F is a fold that folds back the sheet 2, the upper fold FB' is a fold that does not fold back the sheet 2, but connects the upper joint margin 51 to the upper sheet 2U. In this respect, the upper fold FB' is a fold different from the fold F. If the upper joint margin 51 is folded back to one side in the horizontal direction (the left side on the paper in FIG. 2) at the upper fold FB', the upper joint margin 51 is folded over on the upper side of the upper sheet 2U. In other words, the upper joint margin 51 can be said to be a fold (unfolded) of the cardboard web 1W that constitutes this continuous cardboard material 1 at the upper fold FB'.

[0045] As shown in Fig. 2, the bottom joint portion 50 of the first continuous cardboard material 1A extends from an edge 2X on one lateral side (left side in the figure) of the lower sheet 2D. The top joint portion 51 of the second continuous cardboard material 1B extends from an edge 2Y on the other lateral side (right side in the figure) of the upper sheet 2U. The upper joint portion 51 is overlapped on the lower joint portion 50 and connected to each other. In Fig. 2, the downward surface of the upper joint portion 51 is overlapped on the upward surface of the lower joint portion 50. For this connection, double-sided tape, adhesive, a stapler, etc. can be used.

[0046] As a result, the bottom sheet 2D of the first continuous cardboard material 1A and the top sheet 2U of the second continuous cardboard material 1B are joined together via the bottom joint portion 50 and the top joint portion 51. Therefore, the top sheet 2U of the second continuous cardboard material 1B is fed to the box making system 100 continuously with respect to the bottom sheet 2D of the first continuous cardboard material 1A. Although not shown in the figure, a bottom joint portion may also be provided on the bottom sheet of the second continuous cardboard material 1B.

[0047] Here, in the box making system 100 of FIG. 2, the sheet 2 is threaded in such a manner that the back surface, which is the surface facing the inside of the box when assembled into a cardboard box, faces upward. In order to ensure ease of feeding (feedability) into this box-making system 100, it is preferable that the postures of the first continuous cardboard material 1A and the second continuous cardboard material 1B in the pallet-attached continuous cardboard material 10, 10' be set as follows. The lower sheet 2D is oriented so that its front surface, which will be the surface facing the outside of the box when a cardboard box is manufactured using the first continuous cardboard material 1A, faces downward. The upper sheet 2U is oriented so that its back surface, which will be the surface facing the inside of the box when a cardboard box is manufactured using the second continuous cardboard material 1B, faces upward.

[0048] The box-making system 100 that assembles the cardboard boxes is not particularly limited, but examples of the fully automatic packaging systems (fully automatic machines) that can be used include the "Cartonwrap 1000 manufactured by CMC," the "CVP-500 manufactured by Neopost," and the "TXP-600 manufactured by OS Machinery," as well as semi-automatic systems (semi-automatic machines) that perform processes from feeding to cutting, such as the "EM7 manufactured by Pack Size," the "Compack manufactured by Panotec," the "PAQTEQ C-200 manufactured by HOMAG," and the "PAQTEQ C-250 manufactured by HOMAG."

[0049] [2. Actions and Effects] (1) In the present pallet-attached continuous cardboard material 10, a buffer sheet 30 having a predetermined buffering property is interposed between the continuous cardboard material 1 and the pallet 20, so that the continuous cardboard material 1 does not directly contact the mounting surface 21 of the pallet 20, but contacts the buffer sheet 30. As a result, the bottom sheet 2D of the continuous cardboard material 1 is less likely to be damaged or deformed due to the uneven shape of the mounting surface 21 of the pallet 20 or the shape of a foreign object present between the bottom sheet 2D and the mounting surface 21 of the pallet 20. Therefore, the pallet-attached continuous cardboard material 10, which includes the continuous cardboard material 1 and the pallet 20 on which it is placed, can suppress the occurrence of defective parts in the continuous cardboard material 1.

[0050] (2) In the present pallet-attached continuous cardboard material 10, the buffer sheets 30 are the cardboard sheets 30A and 30B made of paper, so that the buffering function of the cardboard sheets can ensure buffering properties. (3) In the present pallet-attached continuous cardboard material 10, two cardboard sheets 30A, 30B are stacked vertically as the buffer sheet 30, so that the buffer properties can be improved compared to when a single cardboard sheet is used.

[0051] (4) In the present pallet-attached continuous cardboard material 10, the area of ​​the buffer sheet 30 is equal to or larger than the area of ​​the bottom sheet 2D of the continuous cardboard material 1, so that the buffer sheet 30 can support the entire surface of the bottom sheet 2D. Therefore, damage or deformation is less likely to occur across the entire surface of the bottom sheet 2D. (5) In the present pallet-attached continuous cardboard material 10, the area of ​​the buffer sheet 30 is equal to or larger than the area of ​​the mounting surface 21 of the pallet 20, so that the buffer sheet 30 can cover the entire surface of the lower sheet 2D of the mounting surface 21 of the pallet 20. This eliminates contact points between the mounting surface 21 of the pallet and the lower sheet 2D, making the lower sheet 2D less susceptible to damage or deformation. (6) In the present pallet-attached continuous cardboard material 10, the area of ​​the bottom sheet 2D of the continuous cardboard material 1 is equal to or greater than the area of ​​the placement surface 21 of the pallet 20. If the area of ​​the placement surface 21 of the pallet 20 is greater than the area of ​​the bottom sheet 2D of the continuous cardboard material 1, it tends to be difficult to transport the pallet-attached continuous cardboard material 10. Therefore, by having the area of ​​the bottom sheet 2D equal to or greater than the area of ​​the placement surface 21 of the pallet 20, transportability is more easily ensured than when the area of ​​the placement surface 21 of the pallet 20 is greater than the area of ​​the bottom sheet 2D.

[0052] (7) In the present palletized continuous cardboard material 10, a bottom joining portion 50 is attached to the bottom sheet 2D of the first continuous cardboard material 1A (continuous cardboard material 1), so that a second continuous cardboard material 1B of another palletized continuous cardboard material 10' can be connected to the bottom sheet 2D. In addition, an upper joint portion 51 is provided on the upper sheet 2U of the second continuous cardboard material 1B of another palletized continuous cardboard material 10', so that the first continuous cardboard material 1A of the palletized continuous cardboard material 10 can be connected to the upper sheet 2U. Therefore, when the palletized continuous cardboard materials 10, 10' are applied to the box-making system 100, the continuous cardboard materials 1A, 1B of the two palletized continuous cardboard materials 10, 10' can be continuously fed into the box-making system, thereby improving the feeding performance.

[0053] (8) In the present box-making system 100, the sheet 2 is often threaded in such a manner that the back surface, which faces the inside of the box when assembled into a cardboard box, faces upward. Therefore, by having the upper sheet 2U facing with its rear surface facing upward, the sheet 2 can be easily fed to the box making system 100 with its rear surface facing upward. In addition, by arranging the lower sheet 2D so that its front surface faces downward, the lower sheet 2D can be joined to the upper sheet 2U with its back surface facing upward. Therefore, the sheets 2 of the continuous corrugated cardboard material 1A, 1B can be continuously fed into the box-making system with their back surfaces facing upward. This improves the feeding performance.

[0054] [Second embodiment] In the pallet-attached continuous cardboard material 10 according to the second embodiment, the buffer sheet 30 is made of a plastic sheet. An example of the buffer sheet 30 made of a plastic sheet is a plastic cardboard sheet. In this case as well, the cushioning properties of the cushioning sheet 30 can be appropriately set depending on the specifications such as the plastic material and thickness of the cushioning sheet 30 . When the buffer sheet 30 is made of a plastic sheet, it is washable with water, and therefore has superior reusability compared to a paper cardboard sheet. In addition, when a plastic cardboard sheet is used for the buffer sheet 30, it is not only superior in reusability, but also makes it easier to ensure buffering properties due to the buffering function of the cardboard sheet. When a plastic cardboard sheet (plastic sheet) is used as the buffer sheet 30, two or more plastic cardboard sheets may be stacked vertically. This provides higher buffering properties than when a single sheet is used.

[0055] [others] The above-described embodiments are merely examples, and are not intended to exclude various modifications or application of techniques not explicitly stated in the embodiments. The configurations of the present embodiments can be modified in various ways without departing from the spirit of the embodiments. In addition, the configurations can be selected as necessary, and can be combined appropriately.

[0056] For example, in a palletized continuous corrugated board material 10, the buffer sheet 30 may be a single sheet of paper corrugated board. Examples of the paper sheet used for the buffer sheet 30 include, in addition to the above-mentioned cardboard paper sheet, paperboard, paper board, and the like. Examples of the plastic sheet used for the buffer sheet 30 include the above-mentioned plastic cardboard sheet, a plastic plate, a foamed plastic sheet, and the like.

[0057] In addition, the area of ​​the buffer sheet 30, the area of ​​the lower sheet 2D, and the area of ​​the mounting surface 21 of the pallet 20 may be the same. In other words, the vertical dimensions and horizontal dimensions of the buffer sheet 30, the lower sheet 2D, and the mounting surface 21 of the pallet 20 may be the same. In the continuous cardboard material 10 with a pallet, the continuous cardboard material 1 does not necessarily need to be provided with a bottom joint portion or a top joint portion. [Explanation of symbols]

[0058] 1 Continuous corrugated cardboard 1A First continuous corrugated board 1B Second continuous cardboard material 1W Cardboard Web 2 seats 2D Lower Sheet 2U upper seat 2X edge 2Y edge 10,10′ continuous corrugated board with pallet 20 palettes 21 Placement surface 30 Cushioning Sheet 30A, 30B Cardboard sheet 100 Box-making system 110 Rotating Body 114 Guide Roll F fold FB bottom fold FB′ Top fold

Claims

1. A continuous corrugated cardboard material in an accordion-folded manner, in which rectangular sheets in a continuous band-like corrugated cardboard web are folded back in a second direction perpendicular to the first direction at each fold line extending linearly along a first direction, and the sheets are stacked vertically to form a rectangular parallelepiped package; A pallet having a placement surface extending along the first direction and the second direction, the continuous cardboard material being placed above the placement surface; a cushioning sheet having a flat surface extending in both the first direction and the second direction, a thickness along the vertical direction, and a predetermined cushioning property, the cushioning sheet being interposed between the placement surface of the pallet and the continuous cardboard material. A continuous corrugated board material with a pallet.

2. The buffer sheet is a paper sheet.

2. The continuous corrugated board material with pallets according to claim 1.

3. The buffer sheet is a plastic sheet.

2. The continuous corrugated board material with pallets according to claim 1.

4. The cushioning sheet is a cardboard sheet.

4. The continuous corrugated board material with pallets according to claim 2 or 3.

5. The buffer sheet is two or more sheets stacked vertically.

2. The continuous corrugated board material with pallets according to claim 1.

6. The surface area of ​​the buffer sheet is equal to or greater than the surface area extending in the first direction and the second direction of a lower sheet located at the bottom among the sheets stacked in the vertical direction in the continuous cardboard material.

2. The continuous corrugated board material with pallets according to claim 1.

7. The area of ​​the surface of the buffer sheet is equal to or greater than the area of ​​the placement surface of the pallet.

2. The continuous corrugated board material with pallets according to claim 1.

8. The area of ​​a surface extending in the first direction and the second direction of a lower sheet located at the bottom layer among the sheets stacked in the vertical direction in the continuous cardboard material is equal to or larger than the area of ​​the placement surface of the pallet.

8. The continuous corrugated board material with pallets according to claim 6 or 7.

9. The continuous cardboard material is provided with a sheet-like lower joint portion extending from an edge of a lower sheet located at the bottom of the sheets stacked in the vertical direction that is not connected to the sheets other than the lower sheet in the second direction.

2. The continuous corrugated board material with pallets according to claim 1.

10. The continuous cardboard material is provided with a sheet-like upper joint portion extending from an edge of an upper sheet located at the top of the sheets stacked in the vertical direction on a side that is not connected to the sheets other than the upper sheet in the second direction.

2. The continuous corrugated board material with pallets according to claim 1.

11. A box making system for manufacturing cardboard boxes using the palletized continuous cardboard material according to claim 1 as a box making material, The pallet-attached continuous cardboard material is oriented such that the lower sheet, which is located at the bottom of the sheets stacked in the vertical direction in the continuous cardboard material, faces downward with its front surface, which is the surface facing the outside of the cardboard box. A box-making system characterized by:

12. A box making system for manufacturing cardboard boxes using the palletized continuous cardboard material according to claim 1 as a box making material, The pallet-attached continuous cardboard material is oriented such that the upper sheet, which is located in the uppermost layer among the sheets stacked in the vertical direction in the continuous cardboard material, faces upward with its back surface, which will be the surface facing the inside of the cardboard box when the continuous cardboard material is used to manufacture the cardboard box. A box-making system characterized by:

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