JPH11156786A - Manufacture of buffer member made of paper multivesicular laminated plate and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress generation of dust as much as possible at the time of a cutting machining by using a cutter assembly including plural pairs of cutter edges fixed to a surface plate by arranging the cutter edges to be serial with the surface plate and inclining the cutter edges by prescribed angles. SOLUTION: Cutter edges 22a, 22b, 22c of a cutter assembly 22 are inclined so that the cutter edges 22a, 22b, 22c each other may correspond to the angle of a V-groove 15 formed on corrugated board 10. The cutter assembly 22 serially arranges the cutter edges 22a, 22b, 22c with the cutter edge 22a at the head from the upstream side of the feeding direction. Corrugated board 10 is moved on a surface plate 21, the cutter edges 22a, 22b, 22c of each cutter assembly 22 are successively bitten into corrugated board 10 and the V-groove 15 is formed. Namely, bar-shaped cutting chips of reversed triangle shapes in cross section are cut from corrugated board 10 and the V-groove 15 is formed. Therefore, dust is not generated when the V-groove 15 is formed and also generated noise is remarkably reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a cushioning member used for squaring an article in packaging and packing various articles, and more particularly, to a paper-like multicellular laminate such as corrugated paper. The present invention relates to a method and an apparatus for manufacturing a cushioning member by forming a V-groove and bending a straight line along the bottom of the V-groove as a folding line.

[0002]

2. Description of the Related Art Styrofoam has been frequently used as a cushioning member for packing articles. However, Styrofoam is not easily decomposed in the natural world and causes environmental pollution. In recent years, paper-based multicellular laminates such as corrugated paper have been replacing it.

[0003]

However, unlike the styrofoam, the paper multicellular laminate must be bent to be used as a cushioning member. Conventionally, in the bending process, a disk-shaped saw blade or blade is driven to rotate a V-shaped cutter to cut a V-groove in a paper-like multicellular laminate,
The bottom of the groove was bent. However, paper-based multi-cellular laminates such as corrugated cardboard have a weak and unstable structure compared to wood and the like, so it is difficult to cut sharply and a large amount of cutting chips are discharged and diffused. It remained.

SUMMARY OF THE INVENTION An object of the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a buffer made of a paper-like multicellular laminated board which minimizes dust generation during cutting and does not cause environmental pollution when discarded. It is an object of the present invention to provide a member manufacturing method and an apparatus for manufacturing a cushioning member made of a paper-based multicellular laminated board that is simple, has a small structure, is an energy-saving type, and has little noise and vibration.

[0005]

In order to achieve the above object, the present invention provides a cutting tool including a plurality of pairs of cutter blades arranged in series with a surface plate and fixed to the surface plate at a predetermined angle. Providing a cushioning member manufacturing apparatus including an assembly; providing a paper multicellular laminate including a core base paper and a liner attached to both sides of a central base paper; and a paper multicellular laminate. Relative to the blade assembly along the platen and linearly moving to form a substantially V-shaped groove in the paper multicellular laminate with a depth that leaves at least one of the liners; Producing a cushioning member by folding the paper-like multicellular laminate to a predetermined side with a line extending along the bottom of the groove as a folding curve, and manufacturing a cushioning member made of the paper-like multicellular laminate. I will provide a.

Further, the present invention is characterized by comprising a surface plate and a blade assembly including a plurality of pairs of cutter blades arranged in series and fixed to the surface plate at a predetermined angle. Provided is an apparatus for manufacturing a buffer member made of a paper multicellular laminate.

[0007]

In the method and apparatus for manufacturing a cushioning member made of a paper-like multi-cellular laminate according to the present invention, since the blade assembly is fixed to the surface plate, dusts such as cutting chips are cut off when cutting the paper-like multicellular laminate. Generation can be suppressed as much as possible, and the inside of the buffer member is not damaged.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a method of manufacturing a cushioning member according to an embodiment of the present invention. FIG. 1 is a schematic view showing a manufacturing process.
FIG. 2 is a perspective view of a main part of the grooving device, and FIG. 3 is a schematic diagram showing details of a blade assembly used in the grooving device.

In the illustrated embodiment, first, a corrugated paperboard (paper multicellular laminate) 10 is cut into a predetermined size.
The corrugated paper 10 is constituted by, for example, laminating a semi-chemical liner (cardboard raw paper) 12 which is somewhat thicker than the core raw paper on both surfaces of a corrugated semi-chemical paper core raw paper 11. You. In the illustrated embodiment, the dimensions of the corrugated paper 10 are, for example, about 1200 mm in length and about 18 in width.
0 mm and a thickness of about 24 mm. In this embodiment,
Corrugated paper 10 was used as the papery multicellular laminate,
Needless to say, the present invention can be applied to a sandwich panel having a honeycomb structure.

Next, as shown in FIG.
The two V-grooves 15 are formed in parallel in the entire length in one direction while leaving the liner 12 on the other surface side on one surface. In the illustrated embodiment, the depth of the V-groove 15 is about 23 mm. In this embodiment, two V-grooves 15 are formed, but it is needless to say that the number and the like of the V-grooves 15 are appropriately selected according to the shape of the cushioning member to be manufactured.

Here, the V-groove 15 is formed as shown in FIGS.
The groove processing apparatus 20 shown in FIG. As shown in both figures, the groove processing device 20 has a surface plate 21 fixed to a device frame or the like (not shown), and the corrugated paper 10 is pushed on the surface plate 21 by a feed mechanism including a roller or the like. (Arrow A in FIG. 3). The feed rate is, for example, about 1
0 m.

A mounting portion 21a is fixedly provided on both sides of the surface plate 21, and a pair of blade assemblies 22 are provided between the mounting portions 21a.
Are mounted at predetermined intervals by two band-shaped brackets 23, 23, and a pair of guides 24, 24 are provided between the mounting portions 21a so as to be position-adjustable.

As shown in FIG. 3, the blade assembly 22 includes a pair of first cutter blades 22a, a second cutter blade 22b, and a third cutter blade 22c.
Each of them is sandwiched and fixed between the five. The cutter blades 22a, 22b, 22c of the blade assembly 22 are inclined at an angle corresponding to the angle of the V-groove 15 formed on the corrugated paper 10. Each of the brackets 23, 23 has two intermediate portions at the holder plate 2 inside each blade assembly 22.
5, is fixed in the longitudinal direction by screws 26,
Both ends are fixed to the mounting portion 21a by screws 27.

The blade assembly 22 includes first, second, and third blade assemblies.
The cutter blades 22a, 22b, 22c are arranged in series from the upstream side in the feed direction indicated by the arrow A with the first cutter blade 22a at the top. In the illustrated embodiment, the cutter blade has, for example, a thickness of 0.7 mm, a width of 18 mm, and a length of 100 mm. The blade assembly 22 has a first cutter blade 22a of 4 degrees 3
An elevation angle α1 of 0 minute and a cutting depth D1 of 22% of the thickness of the corrugated paper 10, and a second cutter blade 22 b has an elevation angle α2 of 16 degrees and a cutting depth D2 of 53% of the thickness of the corrugated paper 10.
The third cutter blade 22c has an elevation angle α3 of 27 degrees and a cutting depth D3 of 100% of the thickness of the corrugated paper 10.

The number of the cutter blades of the blade assembly 22, the elevation angles α1, α2, α3 of the cutter blades, and the cutting depth D
1, D2, D3, etc. can be appropriately selected according to the density of the corrugated paper 10 and the like. For example, when the density of the corrugated paper 10 is high, the number of cutter blades is increased and the elevation angle α
The difference between α1, α2 and α3 is reduced, and the cutting depth of the cutter blade is also reduced.

The guide 24 is formed of a long member having a hook-like cross section having an upper surface pressing portion 24a and a side pressing portion 24b extending in the longitudinal direction. Provided. Guide 2
Numeral 4 is fixed at a position corresponding to the size of the corrugated paper 10 and the upper surface pressing portion 24a is in sliding contact with the upper surface of the corrugated paper 10 and the side pressing portion 24b is in sliding contact with the side surface of the corrugated paper 10 to guide the movement of the corrugated paper 10. I do.

The above-described guide 24 is integrally provided with an upper surface pressing portion 24a and a side pressing portion 24b. These pressing portions 24a and 24b are separately formed, and each of them is attached to the surface plate 21 so that the position can be adjusted. Is also possible.

In order to form the V-groove 15 in the corrugated paperboard 10 by the grooving device 20, the corrugated paperboard 10 is moved on the platen 21 as shown by an arrow A in the figure, and The cutter blades 22 a, 22 b, and 22 c are sequentially cut into the corrugated paper 10 to form cuts, and the V-grooves 15 are formed in the corrugated paper 10. That is, bar-shaped cuttings 19 having an inverted triangular cross section are obtained from the corrugated paper 10 (see FIG. 2).
To form a V-groove 15. Therefore, the V groove 15
No dust is generated during the formation, and the noise generated is significantly reduced.

Thereafter, the corrugated paper 15 on which the V-groove 15 is formed is bent inward along a straight line along the bottom of the V-groove 15, and the side surfaces of the V-groove 15 are bonded with an adhesive or the like.
Then, the adhesive is dried by natural leaving or the like to complete the buffer member S1 as shown in FIG. 1B. This buffer member S1
As is well known, is used as a squaring member or the like when packing, but since there is no dust inside the core base paper or the like, there is no problem for the final consumer or the like.

The cushioning member S manufactured according to the present invention
Is not limited to the one shown in FIG. 1, but it is also possible to manufacture various shapes, for example, a buffer member S2 as shown in FIG.

[0022]

In the method and apparatus for manufacturing a cushioning member made of a paper-like multicellular laminate according to the present invention, since the blade assembly is fixed to the surface plate, cutting dust and the like are generated when cutting the paper-like multicellular laminate. Generation of dust can be suppressed as much as possible, and the inside of the buffer member is not damaged. In addition, the present invention, compared with rotary blades,
The work danger, noise and vibration during the work can be significantly reduced, and also contributes to the improvement of worker's safety, hygiene and work environment.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating an outline of a manufacturing process according to a method of manufacturing a cushioning member according to an embodiment of the present invention.

FIG. 2 is a perspective view of a groove processing apparatus used in the manufacturing method.

3A and 3B show a blade assembly used in the grooving apparatus, wherein a is a front view and b is a plan view.

FIG. 4 is a perspective view showing another form of the cushioning member manufactured by the manufacturing method of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Corrugated paper (paper quality multicellular laminated board) 11 Core base paper 12 Liner (corrugated base paper) 15 V groove 20 Groove processing device 21 Surface plate 22 Blade assembly 22a First cutter blade 22b Second cutter blade 22c Third Cutter blade 24 Guide S1 Buffer member S2 Buffer member

Claims (6)

[Claims] 1. A method of manufacturing a cushioning member made of a papery multicellular laminated board, comprising: (a) a plurality of pairs of a platen and a plurality of pairs arranged in series and fixed to the platen at a predetermined angle; Preparing a cushioning member manufacturing apparatus including a blade assembly including a cutter blade; and (b) preparing a paper-based multicellular laminate including a core base paper and liners attached to both sides of the center base paper. (C) moving said paper-cell-cell laminate relative to said blade assembly along said surface plate and leaving said paper-cell-cell laminate at a depth leaving at least one liner. Forming a substantially V-shaped groove in (d);
Folding the papery multicellular laminate to a predetermined side with a line extending along the bottom of the groove as a fold curve to produce a cushioning member. Production method. 2. The blade assembly includes a pair of first cutter blades and a pair of second cutter blades, and the first cutter blade has a cutting elevation angle of 9 degrees or less and a cutting depth of 9 degrees or less. 2. The second cutter blade according to claim 1, wherein the thickness is not more than 25% of the thickness of the paper multicellular laminate, and the second cutter blade has a cutting elevation angle of not more than 60 degrees and a cutting depth corresponding to the depth of the groove. 3. A method for producing a cushioning member made of the papery multicellular laminate according to the above. 3. The cutter assembly comprises a pair of first cutter blades, a pair of second cutter blades, and a pair of third cutter blades arranged in series. The blade has a cutting elevation angle of about 5 degrees or less and a cutting depth of about 25% or less of the thickness of the paper multicellular laminate, and the second cutter blade has a cutting elevation angle of about 20 degrees or less and the cutting depth. Not more than about 60% of the papery multilaminate, the third cutter blade having a cutting elevation angle of less than about 30 degrees and a cutting depth corresponding to the depth of the groove of the papery multilaminate. A method for producing a cushioning member made of a papery multicellular laminate according to claim 1. 4. An apparatus for manufacturing a cushioning member made of a paper multilamellar laminate, comprising: a platen; and a plurality of pairs of cutter blades arranged in series and fixed to the platen at a predetermined angle. An apparatus for manufacturing a cushioning member made of a paper-like multicellular laminate, comprising: 5. The blade assembly includes a pair of first cutter blades and a pair of second cutter blades, and the first cutter blade has a cutting elevation angle of 9 degrees or less and a cutting depth of 9 degrees or less. The second cutter blade has a cutting elevation angle of 60 degrees or less and a cutting depth corresponding to the depth of the groove, which is not more than 25% of a thickness of the paper-like multicellular laminate. An apparatus for producing the cushioning member made of the papery multicellular laminate according to the above. 6. The blade assembly comprises a pair of first cutter blades, a pair of second cutter blades, and a pair of third cutter blades arranged in series. The blade has a cutting elevation angle of about 5 degrees or less and a cutting depth of about 25% or less of the thickness of the paper multicellular laminate, and the second cutter blade has a cutting elevation angle of about 20 degrees or less and the cutting depth. Not more than about 60% of the papery multilaminate, the third cutter blade having a cutting elevation angle of less than about 30 degrees and a cutting depth corresponding to the depth of the groove of the papery multilaminate. An apparatus for producing a cushioning member made of a paper-based multicellular laminate according to claim 4.