JP4517238B2 - Method for manufacturing paper cushioning material - Google Patents

Description

  The present invention relates to a method of manufacturing a paper cushioning material for a package to be used at the time of packaging an article.

As this type of invention, for example, the invention described in Japanese Patent Laid-Open No. 6-320647 is known (see Patent Document 1).
In the paper cushioning material manufacturing apparatus according to the present invention, a pair of rollers are arranged at intervals in the vertical direction, and the roller positioned above is fixed in the circumferential direction of the roller and in the axial direction of the roller. A large number of convex portions are formed at intervals.
A cutting blade is formed at the peripheral edge of the circumferential surface of the convex portion of the roller located above. Furthermore, the notch part is formed in a part of circumferential surface which the said convex part opposes.

On the other hand, a large number of recesses are formed at regular intervals in the circumferential direction of the roller located below and in the axial direction of the roller.
A bulging portion is formed between these adjacent concave portions, and the bulging portion is provided with a cutting blade and a notch portion in the same manner as the cutting blade and the notch portion of the roller positioned above.
And each recessed part and convex part of these both rollers are fitted in the state which mutually meshes | engages.

By rotating these rollers and inserting a plurality or a single sheet of newspapers and other waste paper stacked one above the other between the rollers, the rotation direction of the cutting blades through the cutting blades and notches into the waste paper. A method for obtaining a soft paper cushioning material having a large number of meshes by forming a number of cuts and connecting portions alternately in an intermittent state along the line and then pulling in a direction orthogonal to the cuts is disclosed.
JP-A-6-320647

  The background art described in the above-mentioned patent document 1 has a large number of meshes by forming a large number of cuts and joints alternately on a plurality of waste papers such as newspapers, and then pulling them in a direction orthogonal to the cuts. This was a method of obtaining a large number of paper cushioning materials at the same time.

  Therefore, although the paper cushioning material manufacturing method according to the background art can be evaluated in terms of being able to manufacture a soft paper cushioning material, a large number of waste papers are stacked in the vertical direction, the paper cushioning material The length was constrained by the length of waste paper such as newspaper.

  The paper cushioning material according to the background art uses a paper cushioning material, although the paper cushioning material can be obtained by rolling it with both hands, resulting in a laminated state of the paper cushioning material. As a result, the length of the paper cushioning material is changed to a laminated state by rounding with both hands, so that the length of the paper cushioning material changed to the laminated state is The paper was significantly shorter than the original length of newspapers such as newspapers.

  By the way, in the case of a three-layer configuration by rounding one or more paper cushioning materials, the length of the cushioning material is compared with the original length of waste paper such as newspaper, even if the cushioning material is fluffy. Therefore, the length is changed to 1/3.

  Therefore, in the paper cushioning material according to the invention of the background art, the length is greatly restricted, and therefore, in the packaging of the packaged item, in addition to the case where the long packaged item cannot be handled, there is a short paper cushioning. It is necessary to fill the packaging box with many pieces of material, and as a result of filling a large number of paper cushioning materials into the packaging box, these paper cushioning materials are used in the packaging box. There is a possibility that it may relieve inside, and thus there is a possibility that the buffering function of the article to be packaged may be impaired.

  An object of the present invention is a method of manufacturing a paper cushioning material using a waste paper sheet such as a newspaper, a pamphlet, or a so-called advertisement flyer. An object of the present invention is to provide a long paper cushioning material having a thickness.

  Another object is to obtain a long paper cushioning material having an inseparably continuous length, by adjusting the length of the paper cushioning material, so that paper corresponding to an arbitrary length of the packaged material can be obtained. It is to provide a cushioning material.

  Furthermore, another object is to obtain a cushion material made of long paper with a series of inseparably continuous lengths, to obtain a cushion material that is rolled up and appropriately fluffed, as compared with the background art, It is to obtain a paper cushioning material having a further excellent cushioning function by adopting the configuration.

In order to achieve the above object, the first problem solving means of the present invention is:
A pair of rollers 10a and 10b is rotatably arranged with a space in the vertical direction, and the entire length of the roller 10a is arranged in the circumferential direction of the roller 10a and in the axial direction of the roller 10a. Convex portions 10c are formed at regular intervals over the
A notch 10d is formed in a part of the opposing circumferential surface of the convex portion 10c, and the peripheral edge of the circumferential surface of the convex portion 10c of the roller 10a positioned above is formed as a cutting blade 10e.
On the other hand, the recesses 10f are formed at regular intervals over the entire length of the roller 10b in the circumferential direction of the roller 10b positioned below and in the axial direction of the roller 10b . A bulging portion 10g is formed between the concave portions 10f,
A notch 10d is formed in a part of the opposed circumferential surface of the bulging portion 10g, and the peripheral edge of the circumferential surface of the bulging portion 10g of the roller 10b located below is formed as a cutting blade 10h. ,
Between the pair of rollers 10a and 10b rotating in the paper cushioning material manufacturing apparatus 12 in which the convex portions 10c and the concave portions 10f of the upper roller 10a and the lower roller 10b are engaged with each other. To insert a sheet of paper 14 such as waste paper, newspaper, pamphlet, advertising flyer,
Cutting blade 10e of the manufacturing apparatus 12 of the above paper cushioning material, 10h and the notch portions 10d, the manufacture of paper cushioning material that forms the shape of the slit 16 and the connecting portion 18 are alternately 10d on the sheet 14 of the via In the method
When obtaining the paper cushioning material 20a in which at least two sheets 14 are connected, the first sheet 14n-1 is inserted between a pair of rotating rollers 10a and 10b, and the cutting blade is inserted. 10e, 10h and the notch portions 10d, 10d in the range of the intermediate portion from the first sheet 14 n-1 of the tip through a shape formed by alternately connecting portion 18 sequentially cuts 16 every predetermined interval As well as
On the other hand, the leading end of the second sheet 14n-2 is stacked on the rear end of the first sheet 14n- 1 in the middle of alternately forming the cuts 16 and the connecting portions 18, and the stacking is performed. At the stacked portion of the rear end portion of the first sheet 14n-1 and the leading end portion of the second sheet 14n-2 , the cutting blades 10e and 10h and the notches 10d and 10d are provided. and at the same time form formed cuts 16 and connecting part 18 to alternately said mutually are joined laminated portion of the sheet 14 group, further, the sheet of the second and subsequent, sequential, the connecting portion 18 and the cut 16 The leading end of the (X + 1) th sheet 14n-X + 1 is laminated on the rear end of the Xth (where X is an integer greater than or equal to 2) sheet 14n-X in the middle of alternately forming, The rear end of the Xth sheet 14n-X and the (X + 1) th sheet 14n-X At the same time, the cut portions 16 and the connecting portions 18 are alternately formed in the stacked portion at the front end portion of the +1 through the cutting blades 10e and 10h and the notched portions 10d and 10d, and at the same time, the stacked portions of the sheet 14 group are mutually connected. are bonded, furthermore, the range of the rear end portion from the middle portion of the last sheet, by forming alternately connecting part 18 and the switching Re eye 16 at every predetermined interval, a sheet 14 group of the a method for producing a paper cushioning material, characterized in that to set atomically continuous contact.

In order to achieve the above object, the second problem-solving means of the present invention is characterized in that the cross-sectional shape is made substantially wavy by compressing the paper cushioning material 20a in the direction of the cut line 16. It is a manufacturing method of the paper cushioning material of description.

First means for solving problems of this invention from being configured as described above, the material is newsprint paper cushioning material, brochures, although a sheet by waste paper, such as marketing brochures, series atomically continuous contact A long paper cushioning material can be obtained.
In the background art, since the length of the sheet is limited, the length of the paper cushioning material is inevitably limited, and the usage is limited, but in the present invention, the sheets of old paper are connected. Therefore, a paper cushioning material having an arbitrary length corresponding to the length of the package can be obtained.

  In addition, since the paper cushioning material set to an arbitrary length can be obtained, when obtaining a cushioning material in a rounded and fluffy state, a multilayered paper cushioning material can be obtained. Can be obtained.

According to the second problem solving means of the present invention, in addition to the effects exhibited by the first problem solving means, the cross-sectional shape of the paper cushioning material is substantially wave-like, so that a paper cushioning material having a further excellent cushioning function is obtained. be able to.

Although waste paper is the sheet, a series atomically continuous aim to provide a paper cushioning material having a length, a break and connecting portion is provided by stacking the continuous contact portions of the plurality of sheets, This was realized by connecting the laminated parts at the same time.

1 and 2 show an embodiment of a manufacturing apparatus 12 for a paper cushioning material 10 according to the present invention.
Since the configuration of the device 12 itself is basically not different from the background art, the details will be explained with reference to the background art and the drawings, and the configuration necessary for carrying out the present invention will be described.

A pair of rollers 10a, 10b is arranged on the pedestals 24, 24 via rotary shafts 22, 22 provided on both sides of the rollers 10a, 10b with a space in the vertical direction.
A large number of convex portions 10c are formed on the roller 10a located above at a predetermined interval in the circumferential direction of the roller 10a and in the axial direction of the roller 10a.
Cutouts 10d and 10d are formed in a part of the opposed circumferential surface of the convex portion 10c, and the peripheral edge of the circumferential surface of the convex portion 10c of the roller 10a positioned above is formed as a cutting blade 10e. (See FIGS. 1, 2, and 4).

On the other hand, a large number of recesses 10f are formed in the circumferential direction of the roller 10b positioned below and at a certain interval in the axial direction of the roller 10b, thereby expanding between the adjacent recesses 10f. A protruding portion 10g is formed.
Cutouts 10d and 10d are formed in a part of the opposed circumferential surface of the bulging portion 10g, and the peripheral edge of the circumferential surface of the bulging portion 10g of the roller 10b positioned below serves as a cutting blade 10h. (See FIGS. 1, 2, and 4).

  Then, the paper cushioning material manufacturing apparatus 12 is provided so that the concave portions 10f and the convex portions 10c of the upper roller 10a and the lower roller 10b are engaged with each other.

Therefore, in the embodiment of the present invention, the above-described manufacturing apparatus 12 of the paper cushioning material, and elongated paper cushioning material 20a with two individual sheets 14 and cut 16 which communicates contact the connecting portion 18 A method for obtaining a long paper cushioning material 20A obtained by further processing the long paper cushioning material 20a will be described.

First, a sheet 14 made of waste paper such as a newspaper, a pamphlet, or an advertising flyer is prepared. As apparent from FIG. 2, the pair of upper and lower rollers 10a and 10b are rotated in the direction of the arrow, and the leading end portion of the first sheet 14n-1 is inserted between the rollers 10a and 10b. As shown in FIG. 3 sequentially from the leading end portion to the middle portion of the first sheet 14 n-1 through the cutting blades 10e and 10h provided on the rollers 10a and 10b and the notches 10d and 10d. A large number of discontinuous cuts 16 and connecting portions 18 are alternately formed.
In the present invention, waste paper such as newspapers, pamphlets, and advertising flyers has been used as the sheet 14, but there is no restriction on the use of regular sheets without restriction on the waste paper.

  Needless to say, the discontinuous cut 16 and the connecting portion 18 are formed by the cutting blades 10e and 10h provided with the notches 10d and 10d in a part of the circumferential surface.

The leading end of the second sheet 14 n-2 is laminated on the rear end of the first sheet 14 n-1 in the middle of forming a large number of cuts 16 and connecting portions 18 alternately. The notch 16e and the notch 16d and the notches 10d and 10d are formed at the rear end of the first sheet 14n-1 and the leading end of the second sheet 14n-2. and simultaneously form a large number of connecting portions 18 alternately, two of the single layered portion of the leaf paper 14 of the are bonded to each other.
In this case, a joining means is not particularly required.
The two sheets 14 that pass through the pair of rotating upper and lower rollers 10a and 10b are simultaneously subjected to pressure by the rollers 10a and 10b, and are further subjected to pressure by the cutting blades 10e and 10h. There is no need to provide it.

Furthermore, by forming a large number of cuts 16 and connecting parts 18 alternately through the cutting blades 10e, 10h and the notch parts 10d, 10d from the middle part to the rear end part of the second sheet 14n-2 , two sheets 14 a series atomically elongated obtained by continuous contact of paper cushioning material 20a is obtained (see Figure 3).

In this embodiment, it has been described to obtain two sheets 14 a series atomically elongated obtained by continuous contact paper cushioning materials 20a, further communicating the third sheet 14 n-3 to contact further be communicating contact is a fourth 14 n-4 over the sheet, the first sheet 14 n-1 and of the second sheet 14 n-2 described above It goes without saying that it is possible to repeat the connecting method and the method of alternately forming a large number of cuts 16 and connecting portions 18.
Connecting the third 14 n−3 or more sheets can be employed as necessary.

  Since the long paper cushioning material 20a obtained in the above-mentioned process is provided with a large number of cuts 16 and connecting parts 18, when the contacted material is to be wrapped, the cuts 16 and the connecting parts are provided. Since the paper cushioning material 20a can be extended in the direction perpendicular to the cut line 16 through the line 18, the shape of the package can be adjusted.

  Furthermore, in preparation for the packaging of the article to be packaged, the long paper cushioning material 20a is preliminarily extended in a direction perpendicular to the cut line 16 so that the long paper cushioning material 20a is used for packaging. Is scheduled.

The inventors have further devised the following device, and will be described below with reference to FIGS. 4 and 5.
Through the above process, a large number of cuts 16 and connecting portions 18 are alternately formed on the two sheets 14 passing through the pair of rotating upper and lower rollers 10a, 10b, and the two sheets 14 are connected at the same time. However, the compression means 34 which makes the cross-sectional shape substantially wave-like by compressing the continuous long paper cushioning material 20a in the direction of the cut 16 will be described.

A pair of upper and lower rollers 10a, rollers 10a, a lower receiving plate 26 for supporting the lower surface of the sheet 14 passing through 10b are found provided on the back of 10b.
The rollers 10a and 10b side of the lower receiving plate 26 is provided as an inclined portion 26a, is inclined in the tangential direction of the pair of rollers 10a and 10b from the bottom to the top, and the sheet 14 fed from the rollers 10a and 10b. It is designed so that the lower surface can be guided.
Most of the lower receiving plate 26 that moves away from the rollers 10a and 10b is provided as a horizontal portion 26b and supports the lower surface of the sheet 14.

On the other hand, an upper receiving plate 28 that supports the upper surface of the sheet 14 that passes through the rollers 10a and 10b is provided on the back surfaces of the pair of upper and lower rollers 10a and 10b.
The upper receiving plate 28 includes a fixed plate 28a on the side of the rollers 10a and 10b and a movable plate 28b that moves away from the rollers 10a and 10b.

Fixing plate 28a is inclined to the inclined portion 26a and the symmetry of the lower support plate 26 described above, the roller 10a, is inclined obliquely towards the top to bottom in the tangential direction of 10b, the sheet fed out roller 10a, from 10b The upper surface of 14 can be guided.

On the other hand, the movable plate 28b is pivotally mounted on the fixed plate 28a side via the shaft 30 so as to be rotatable in the vertical direction with the shaft 30 as a base axis.
A weight 32 is placed on the tip of the movable plate 28b.

Therefore, a method of obtaining a long paper cushioning material 20A (see FIG. 5) having a substantially corrugated cross-section by compressing the long paper cushioning material 20a by the compression means 34 described above will be described. The long paper cushioning material 20a fed from the rollers 10a and 10b is guided by the inclined portion 26a of the lower receiving plate 26 and the fixed plate 28a of the upper receiving plate 28 provided on the rollers 10a and 10b side, The lower receiving plate 26 and the upper receiving plate 28 are fed forward. At this time, the movable plate 28b of the upper receiving plate 28 rotates so as to float upward through the shaft 30 described above.
On the other hand, when the weight 32 is placed on the movable plate 28b, excessive lifting is suppressed without rotating freely.

Thus, the long paper cushioning material 20a that has passed between the rollers 10a and 10b does not pass freely between the horizontal portion 26b of the lower receiving plate 26 and the movable plate 28 of the upper receiving plate 28, and the movable plate 28 And the gravity of the weight 32.
As a result, the long paper cushioning material 20a that is receiving a feeding stress on the front side of the lower receiving plate 26 and the upper receiving plate 28 is loosely braked, and the lower receiving plate 26 and the upper receiving plate 28 are A position closer to the front side compulsorily forms an aggregated state.

In this way, the long paper cushioning material 20a can be mechanically compressed in the direction of the cut line 16, and a long paper cushioning material 20A having a substantially wave-like cross-sectional shape can be obtained.
By Ru is changed mounting position of the weight 32 on the movable plate 28b, by increasing the weight for the paper cushioning material 20a long, or decreasing, adjusting the load on the elongated paper cushioning material 20a Thus, the magnitude of the wave in the cross-sectional shape can be changed.

It is a front view of the principal part of the apparatus which manufactures the paper cushioning material concerning the Example of this invention. It is a side view of the principal part which shows the process of manufacturing the primary paper cushioning material which concerns on the Example of this invention. It is the top view which abbreviate | omitted some buffer materials made from the primary paper which concerns on the Example of this invention. It is a side view of the principal part which shows the process of manufacturing the cushioning material made from secondary paper based on the Example of this invention. It is the perspective view which abbreviate | omitted some secondary paper cushioning materials concerning the Example of this invention.

DESCRIPTION OF SYMBOLS 10a Roller 10b Roller 10c Convex part 10d Notch part 10e Notch blade 10f Recessed part 10g Swelling part 10h Notch blade 12 Paper cushioning material manufacturing apparatus 14 Sheet 16 Cut 18 Joint part 20a Paper cushioning material 20 A Paper cushioning material 22 Rotating shaft 24 Base 26 Lower receiving plate 26a Lower receiving plate inclined portion 26b Lower receiving plate horizontal portion 28 Upper receiving plate 28a Upper support plate 28b Upper support plate fixed portion 30 Upper support plate movable portion 32 Weight 34 Compression means

Claims (2)

A pair of rollers 10a and 10b is rotatably arranged with a space in the vertical direction, and the entire length of the roller 10a is arranged in the circumferential direction of the roller 10a and in the axial direction of the roller 10a. Convex portions 10c are formed at regular intervals over the
A notch 10d is formed in a part of the opposing circumferential surface of the convex portion 10c, and the peripheral edge of the circumferential surface of the convex portion 10c of the roller 10a positioned above is formed as a cutting blade 10e.
On the other hand, the recesses 10f are formed at regular intervals over the entire length of the roller 10b in the circumferential direction of the roller 10b positioned below and in the axial direction of the roller 10b . A bulging portion 10g is formed between the concave portions 10f,
A notch 10d is formed in a part of the opposed circumferential surface of the bulging portion 10g, and the peripheral edge of the circumferential surface of the bulging portion 10g of the roller 10b located below is formed as a cutting blade 10h. ,
Between the pair of rollers 10a and 10b rotating in the paper cushioning material manufacturing apparatus 12 in which the convex portions 10c and the concave portions 10f of the upper roller 10a and the lower roller 10b are engaged with each other. To insert a sheet of paper 14 such as waste paper, newspaper, pamphlet, advertising flyer,
Cutting blade 10e of the manufacturing apparatus 12 of the above paper cushioning material, 10h and the notch portions 10d, the manufacture of paper cushioning material that forms the shape of the slit 16 and the connecting portion 18 are alternately 10d on the sheet 14 of the via In the method
When obtaining the paper cushioning material 20a in which at least two sheets 14 are connected, the first sheet 14n-1 is inserted between a pair of rotating rollers 10a and 10b, and the cutting blade is inserted. 10e, 10h and the notch portions 10d, 10d in the range of the intermediate portion from the first sheet 14 n-1 of the tip through a shape formed by alternately connecting portion 18 sequentially cuts 16 every predetermined interval As well as
On the other hand, the leading end of the second sheet 14n-2 is stacked on the rear end of the first sheet 14n- 1 in the middle of alternately forming the cuts 16 and the connecting portions 18, and the stacking is performed. At the stacked portion of the rear end portion of the first sheet 14n-1 and the leading end portion of the second sheet 14n-2 , the cutting blades 10e and 10h and the notches 10d and 10d are provided. and at the same time form formed cuts 16 and connecting part 18 to alternately said mutually are joined laminated portion of the sheet 14 group, further, the sheet of the second and subsequent, sequential, the connecting portion 18 and the cut 16 The leading end of the (X + 1) th sheet 14n-X + 1 is stacked on the rear end of the Xth sheet X (where X is an integer equal to or greater than 2) in the middle of alternately forming, The rear end of the Xth sheet 14n-X and the (X + 1) th sheet 14n-X At the same time, the cut portions 16 and the connecting portions 18 are alternately formed in the stacked portion at the front end portion of the +1 through the cutting blades 10e and 10h and the notched portions 10d and 10d, and at the same time, the stacked portions of the sheet 14 group are mutually connected. are bonded, furthermore, the range of the rear end portion from the middle portion of the last sheet, by forming alternately connecting part 18 and the switching Re eye 16 at every predetermined interval, a sheet 14 group of the method for producing paper cushioning material, which comprises causing a series inseparably formed continuously contact. The method for producing a paper cushioning material according to claim 1, wherein the paper cushioning material (20a) is compressed in the direction of the cut line (16) so that the cross-sectional shape is substantially wave-shaped .

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