JP2020082400A - Corrugated board sheet, method for manufacturing corrugated board sheet, and method for manufacturing blank sheet using corrugated board sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrugated cardboard sheet which can be stored and transported as it is, and can be produced as needed at a manufacturing site brought in. SOLUTION: The edge portions 1a, 1a of two corrugated cardboard plates 1, 1 are butted against each other and arranged adjacent to each other (first step). Paper tape 2 as an adhesive tape is attached to the surface of the corrugated cardboard plates 1 and 1 so as to straddle the edge portions 1a and 1a of both the corrugated cardboard plates 1 and 1 arranged adjacent to each other (second step). The corrugated cardboard plates 1 and 1 to which the paper tape 2 is attached become the corrugated cardboard sheet 10 and are sent out (third step). The corrugated cardboard sheet 20 is cut using a prepared mold (fourth step). The cutting is performed so as to cut the paper tape 3 together with the corrugated cardboard sheet 20 regardless of the position where the paper tape 2 is attached. A blank sheet is cut out from the cardboard sheet 20, and a cardboard box is assembled into a box shape. [Selection diagram] Fig. 1

Description

The present invention relates to a corrugated board sheet, a method for manufacturing a corrugated board sheet, and a method for manufacturing a blank sheet using the corrugated board sheet.

2. Description of the Related Art Conventionally, there has been known one in which corrugated board cut into a certain size is sequentially joined to obtain one corrugated board sheet (see Patent Document 1, etc.).
In the manufacturing method of Patent Document 1, first, a plurality of laminated corrugated board is supplied to the manufacturing apparatus one by one, and then the edges of the corrugated board are crushed. Next, an adhesive is applied to the crushed portions, the crushed portions of the two corrugated board are overlapped with each other in the plate thickness direction, and they are pasted together by a pressing mechanism.
Thereby, a long corrugated cardboard sheet in which a plurality of corrugated cardboard plates are continuous is obtained as a raw material for a corrugated board box manufacturing apparatus. According to this corrugated board sheet, since it is possible to form a blank sheet having a size and shape that extends over a plurality of corrugated board, waste is less likely to occur even in the case of high-mix low-volume production.

It is also known that a corrugated cardboard sheet is preliminarily folded into a Z shape using a large-scale manufacturing apparatus and used as a raw material corrugated board of the corrugated board box manufacturing apparatus.

JP, 2016-120594, A

However, in the one described in Patent Document 1, a step may occur in the portion where the corrugated board plates are overlapped with each other, which may cause a problem in the subsequent cutting and bending steps.
Further, the method of Patent Document 1 is not suitable for using a thin corrugated board that is hard to be crushed as a raw material. Further, according to the method of Patent Document 1, even if the corrugated board is crushed with high accuracy, the hardness (rigidity) of the overlapped portion and the other portion will be different, so that cutting, bending, bonding, etc. There was a risk of causing trouble in the subsequent process.

Furthermore, in the case of folding a corrugated board sheet in a Z shape, an apparatus for manufacturing the corrugated board sheet becomes large-scale.
Further, the corrugated cardboard sheet folded in a Z shape is bulky and thus is not suitable for transportation and storage.
Then, the present invention is a corrugated board sheet in which a plurality of corrugated board is connected, and an object thereof is to provide a corrugated board sheet in which a trouble is less likely to occur in the process of manufacturing a blank sheet. It is an object of the present invention to provide a manufacturing method and a blank sheet manufacturing method using a corrugated board sheet.

The present invention adopts the configurations described in (1) to (6) below in order to solve the above problems.
(1) Providing a plurality of corrugated board and an adhesive tape that is attached to the surface of the corrugated board so as to straddle both end edges of the corrugated board adjacent to each other in a state of being abutted with each other. Corrugated cardboard sheet characterized by.
(2) A corrugated board sheet in which three or more corrugated board are connected in a long shape.
(3) The corrugated fiberboard sheet characterized in that the adhesive tape is a paper tape.
(4) Adhesive tape is applied so as to straddle the first step of arranging two corrugated board adjacent to each other in a state where the edges are abutted against each other and the edge of both corrugated boards adjacent to each other. And a second step of wearing the corrugated fiberboard sheet.
(5) Adhesive tape is applied so as to extend between the first step of arranging two corrugated board adjacent to each other in a state where the edges are abutted against each other and the edge of both adjacent corrugated boards. Manufacturing of a corrugated board sheet characterized by obtaining a long continuous corrugated board sheet by repeating a second step of wearing, a third step of sending out a corrugated board to which an adhesive tape is stuck, and first to third steps. Is the way.
(6) A method for manufacturing a blank sheet, which comprises cutting a corrugated board sheet to form a blank sheet.

According to the corrugated board sheet of the present invention, since the level difference generated at the connecting portion between the corrugated board plates is small, there is less risk of causing troubles in the subsequent steps such as cutting, bending, and bonding.
Further, according to the method for producing a corrugated board sheet of the present invention, it is possible to produce a corrugated board sheet having few steps.
Furthermore, according to the method for manufacturing a blank sheet of the present invention, it becomes possible to easily cope with small-lot production of a wide variety of products.

(A)-(d) shows the process of manufacturing the corrugated board sheet of the embodiment of the present invention, and (a) arranges two corrugated board adjacent to each other with their end edges abutting each other. 1 step, (b) is a second step of sticking the adhesive tape so as to straddle the edge portions of both of the corrugated board adjacently arranged, (c) is the corrugated board to which the adhesive tape is stuck Is a perspective view showing a step of obtaining a long continuous corrugated cardboard sheet. (A) and (b) show the process of manufacturing the blank sheet of the embodiment of the present invention, (a) is a process of cutting a corrugated cardboard sheet, and (b) is a process of extracting the blank sheet from the corrugated cardboard sheet. It is a perspective view shown. (A) and (b) show the process of assembling the blank sheet of the embodiment of the present invention into a box shape, (a) is the process of assembling the blank sheet into a box shape, and (b) is the blank sheet into a box shape. FIG. 2 is a perspective view schematically showing the assembled state, and FIG. 3C is a perspective view showing an example of a multi-product cardboard box.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate. The same components are designated by the same reference numerals, and overlapping description will be omitted.
As shown in FIG. 1, the corrugated board sheet 10 of this embodiment is mainly formed by including a plurality of corrugated board 1 and a paper tape 2 as an adhesive tape connecting these.
It is preferable that the corrugated board 1 of this embodiment has a rectangular shape in a plan view and that the adjacent edge portions 1a, 1a have the same length.
Further, the paper tape 2 has a strength capable of being cut together with the corrugated board 1. The paper tape 2 may have the adhesive surface coated with the adhesive in advance, or may have the adhesive surface applied to the paper tape at the site where the second step is performed. Also, an adhesive may be applied to the surfaces of the edge portions 1a, 1a.
Then, the corrugated cardboard sheet 10 becomes blank sheets 30 and 40 having various shapes. The blank sheets 30, 40, etc. become the corrugated cardboard boxes 50, 60, etc. in the assembled state.

First, a method of manufacturing the corrugated board sheet 10 of the embodiment will be described in the order of (a) to (d) in FIG. 1.
1(a) to 1(d) illustrate a process of manufacturing corrugated board sheets 10 and 20 from corrugated board plates 1 and 1.
The first step shown in FIG. 1(a) is a step of arranging two corrugated cardboard boards 1, 1 adjacent to each other so that their edge portions 1a, 1a are butted against each other.
In the second step shown in FIG. 1B, the paper tape 2 as an adhesive tape is placed on the surface of the corrugated board 1, 1 so as to straddle the end edge portions 1a, 1a of the two corrugated board 1, 1 arranged adjacently. Stick it on.

In the third step shown in FIG. 1C, the corrugated board plates 1 and 1 connected by attaching the paper tape 2 become the corrugated board sheet 10 and are sent out.
Next, as shown in FIG. 1D, the next corrugated board 1 is supplied next to the corrugated cardboard sheet 10 that has been sent out (rear side in the sending out direction), and the above first to third steps are repeated, A corrugated cardboard sheet 20 continuous in a long shape is obtained. Such a corrugated board sheet 20 is not limited in size in the longitudinal direction.

2A and 2B illustrate a process of manufacturing the blank sheets 30 and 40 from the corrugated board sheet 20.
In FIG. 2A, the corrugated board sheet 20 is cut using a mold prepared in advance (fourth step). The cutting is performed regardless of the position where the paper tape 2 is stuck, and the paper tape 2 is cut together with the corrugated cardboard sheet 20 at the position where the paper tape 2 is stuck.
In FIG. 2B, the blank sheets 30 and 40 are cut out from the corrugated cardboard sheet 20.
In this way, the corrugated board sheet 20 can be cut at any place. For this reason, it is suitable for manufacturing blank sheets (cardboard boxes) of different sizes and shapes.

In FIG. 3A, the corrugated cardboard boxes 50, 60 are assembled into a box shape from the cut blank sheets 30, 40.
As shown in FIG. 3B, a plurality of cardboard boxes 50 and 60 having the same shape and substantially the same strength can be obtained even if the positions of the paper tape 2 are different.
Further, by cutting out blank sheets having different sizes and shapes from one corrugated board sheet 20, it is possible to assemble a corrugated board box 70 having another shape as shown in FIG. 3C.

Next, operation effects of the corrugated board sheet 20, the method for manufacturing the corrugated board sheet 20, and the method for manufacturing the blank sheet 30 and the corrugated board box 50 using the corrugated board sheet 20 of this embodiment will be described.
Since the corrugated board used for the corrugated board sheets 10 and 20 of the present embodiment can be a general-purpose product, the corrugated board is easily available. Until the first step is performed, the corrugated board 1 is left as it is and a plurality of sheets are laminated. It can be stored and transported. Further, at the manufacturing site where the corrugated board 1 is brought in, the blank sheets 30 and 40 having a desired shape can be produced.
Further, the apparatus required for manufacturing can be downsized and downsized, and does not require an installation space unlike the conventional large-scale apparatus for folding a corrugated cardboard sheet into a Z shape. For this reason, even if the space at the production site of the cardboard box is limited, it is possible to handle multi-product production.

Then, the paper tape 2 has a strength capable of being cut together with the corrugated board 1. Therefore, the corrugated board sheet 20 can be cut at any place. Further, since the edge portions 1a, 1a of the corrugated board 1 are connected to each other by the paper tape 2 in an abutted state, there is no overlapping portion. Further, a step is unlikely to occur at the connecting portion between the corrugated board 1 and 1, and the hardness (rigidity) does not differ from other portions.
Therefore, the shapes and sizes of the blank sheets 30 and 40 can be set independently of the position of the paper tape 2 and the pitch of the corrugated board 1. Moreover, in the corrugated board sheet 20 of the embodiment, a step is unlikely to occur at the connecting portion of the corrugated board plates 1 and 1. Therefore, it is possible to reduce troubles in the subsequent steps such as cutting, bending, and bonding.

Further, in the embodiment, in the first to third steps, immediately after connecting the plurality of corrugated board 1 with the paper tape 2, the blank sheet 30 and the like to be the corrugated board box 50 and the like are cut in the fourth step. This eliminates the need to stock the cardboard sheets 20.
For example, when manufacturing the corrugated board box 50 for mail order, the required number of corrugated board 1 is carried into the packing site and joined on the spot. As a result, a cardboard box for multi-product production can be obtained, which is suitable for the manufacturing site.
Further, the corrugated cardboard sheet 20 used when packing long and large-sized products that cannot be handled by one corrugated cardboard plate 1 such as furniture and building materials can be used.

In addition, the corrugated board 1 having a rectangular shape in plan view as used in the embodiment is generally available, and also in this respect, the versatility at the manufacturing site is high.
Further, the corrugated board 1 may be printed in the previous step of the first step, or may be printed after it becomes the corrugated board sheet 20 after the paper tape 2 is attached. Even when printing is performed after the paper tape 2 is attached, the corrugated cardboard sheet 20 has no overlapping portion and no step is formed, so that the printing quality applied to the surface of the corrugated cardboard sheet 20 is good.

The present invention is not limited to the above-described embodiment, and various modifications can be made. The above-described embodiment has been described as an example in order to facilitate understanding of the present invention, and is not necessarily limited to one including all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to delete a part of the configuration of each embodiment or add/replace another configuration. Possible modifications to the above embodiment are, for example, as follows.

In this embodiment, the case where the paper tape 2 is attached to one surface (upper surface) of the corrugated board 1, 1 has been described, but the present invention is not limited to this. For example, the paper tape 2 may be attached to the other surface (lower surface) of the corrugated board 1, 1 to connect the edge portions 1a, 1a to each other from both surfaces.
Also, the adhesive tape may be alternately attached to the upper surface and the lower surface in the direction in which they are connected in a long shape. That is, the position, shape and quantity of the paper tape 2 are not particularly limited to the embodiment, and the adhesive tape is adhered to the surface with the edge portions 1a, 1a abutting each other. If

Further, the adhesive tape is not limited to the paper tape 2 of the embodiment. For example, as long as the tape has a strength such that vinyl tape, cloth tape, cellophane tape, etc. can be connected to the edge portions 1a, 1a and can be cut together with the corrugated board 1, what dimensions such as thinness and width are It may be tape. That is, the shape, quantity, strength and material of the adhesive tape are not particularly limited to those of the embodiment.

1 Corrugated board 1a Edge 2 Paper tape (adhesive tape)
10,20 Cardboard sheet 30,40 Blank sheet 50,60 Cardboard box

Claims (6)

Multiple corrugated board,
A corrugated board sheet, comprising: an adhesive tape that is adhered to the surface of the corrugated board so as to straddle between the both end portions in a state where the end portions of the corrugated board adjacent to each other are butted against each other. .. The corrugated board sheet according to claim 1, wherein three or more corrugated board plates are connected in a long shape. The corrugated board sheet according to claim 1 or 2, wherein the adhesive tape is a paper tape. Adhesive tape is attached so as to straddle the two corrugated board adjacent to each other in the first step of arranging the corrugated board adjacent to each other in a state where the end edges of the corrugated board are abutted against each other. A method of manufacturing a corrugated board sheet, comprising: a second step. Adhesive tape is attached so as to straddle the two corrugated board adjacent to each other in the first step of arranging the corrugated board adjacent to each other in a state where the end edges of the corrugated board are abutted against each other. A second step, a third step of sending out the corrugated board to which the adhesive tape is adhered, and the first to third steps are repeated to obtain a long continuous corrugated board sheet. Production method. A method for manufacturing a blank sheet, comprising cutting the corrugated board sheet obtained by the method for manufacturing a corrugated board sheet according to claim 4 or 5 to form a blank sheet.

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