JP2604527B2 - Equipment for manufacturing cardboard cushioning materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cardboard made of loose衝材
On manufacturing equipment.

[0002]

2. Description of the Related Art For example, foamed polystyrene, foamed polyethylene, urethane foam and the like have been widely used as a cushioning material inserted between an electric product such as a refrigerator and an outer case that covers the same from the outside. These cushioning materials have good cushioning properties, are excellent in protecting internal products against external impacts, and are easy to handle because they are lightweight.
Molding is also easy. However, since this cushioning material is a petroleum product, it does not corrode even if left unattended, and emits a large amount of black smoke and an unpleasant odor when burned. I have. In particular, under the current situation in which there is a demand for protecting the global environment, it is becoming a situation that the company that shipped the product must collect or treat the cushioning material under its responsibility.

[0003]

However, it is substantially difficult to recover or treat such a cushioning material. Usually, the company that packs with cushioning material and the customer who purchases or uses the product are far apart, making it difficult for the customer to return only the packaging material to the company, and Consumers cannot even dispose of packaging materials. In particular, since such a packing material has a larger volume and a smaller indoor space,
A large amount of garbage is discharged outdoors, which may cause garbage pollution.

[0004] Also, as for the function of the cushioning material, those made of petroleum products are excellent in the cushioning function, but when products are stacked, as a reinforcing material for supporting the weight of the product, for example, as an exterior material, A case is required, and there is a problem that a strong and expensive outer case is required.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and is not only advantageous in terms of cost in terms of pollution control but also excellent in supporting a stacking load, and has a reliable cardboard cushion. It is an object of the present invention to provide a material manufacturing apparatus.

[0006]

[0007]

[0008]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
'S inventions, corrugating medium in the cross-sectional wave shape on one side of the liner paper (12)
(13) has a pitch substantially the same as the corrugated pitch of the cored paper (13) of the supply section (20) for supplying a single-cardboard (D) of a predetermined length in the form of a strip formed by bonding the (13). And the single cardboard
(D) Gears for winding a single corrugated cardboard provided at both ends
(G), a cover (33) provided so as to cover a part of the outer periphery of the gear (G), and a core paper (13) in the single corrugated cardboard (D).
An adhesive application section (31) for applying an adhesive (s) to the top of the corrugation at a portion other than the both side end portions of the single corrugated cardboard (D) supplied from the supply section (20). Wound body (K) wound several times around the axis extending in the ridge direction of the waveform of paper (13)
A wound body forming part (30) that forms a wound body forming part (30)
And from the gear (G) and the cover (33).
By support base for supporting the winding body (K) dropping (41), the supporting <br/> Jidai (41) placed on the wound body on (K) substantially has a cross section perpendicular to the shaft L
Pressing member (42) that is pressurized and bent to form a letter shape
Pressure portion (40) having an apparatus for manufacturing a corrugated slow衝材consisting.

[0009]

[Action] manufacturing apparatus thus constituted corrugated board loose衝材causes the meshing of the corrugating medium and the gear in the waveform in the winding body forming portion, by rotating the gear, utilizing the waveform of the corrugating medium and then wound around while conveying the belt-like pieces cardboard, moreover both side ends than that the gear is meshed with an adhesive coating unit
An adhesive is applied to the top of the core paper of the outer part . This makes it possible to form a cylindrical wound body in which the ridgeline of the corrugated paper of the core paper is parallel to the axis. Next, after removing the wound body from the gear and the cover , the wound body is supported on a support base, and the adhesive applied to the step top of the core paper which is the inner surface of the cylindrical wound body is used. , only pressurized by the pressure member can be a cross section perpendicular to the shaft to bend forming a substantially L-shaped cardboard slow衝材.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the use of the cushioning material manufactured by the apparatus of the present invention.
Schematic diagram showing a state, FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1, FIG. 3 is an axial sectional view perpendicular to the winding body. In FIG. 1, an angled cushioning material 10 made of corrugated cardboard is used, for example, when packing an electric appliance W such as an electric refrigerator, and the electric appliance W and a cardboard box are covered so as to cover the corners of the electric appliance W. It is inserted between the external case 11 and the external case 11 to protect the internal electric product W against external impact and to support a stacking load acting in the vertical direction.

This angled cushioning material 10 made of cardboard is
As shown in FIG. 2, a single corrugated cardboard D obtained by bonding a core paper 13 having a corrugated cross section to one surface of a liner paper 12 is formed by bending so that a cross section perpendicular to the axis is substantially L-shaped. .

The method of forming the angled cushioning material 10 made of corrugated cardboard will be described in detail. First, a single corrugated cardboard D drawn from a raw material is cut into a predetermined length. As shown in FIG. 3, an adhesive is applied to the top of the corrugated crest of the single corrugated cardboard D, and the corrugated cardboard D is turned a plurality of times in a cylindrical shape with the corrugated ridge inside (in the illustrated example, the corrugated cardboard is wound four times). Yes) to wind. In particular, at the time of this winding, the single corrugated cardboard D is set so that the ridge line of the corrugated medium 13 and the axis of the core material 14 are parallel. In this way, the winding operation can be performed without being disturbed by the core paper 13 at the time of winding due to the characteristics of the single cardboard D, and the operation becomes extremely easy. Further, since the adhesive is applied to the top of the corrugated top of the single corrugated cardboard D, the respective layers can be adhered to each other only by winding, and can be wound only by pressing the cylindrical wound body K. The inner surfaces of the gyrus K are adhered to each other. In this pressurization, the wound body K is press-formed so that a cross section perpendicular to the axis is substantially L-shaped. This pressing is preferably performed not only by pressing but also by applying vibration to prevent the waveform of the core paper 13 from being crushed.

When the angled cushioning material 10 made of corrugated cardboard thus formed is inserted between the outer case and the product, the corrugated core paper bends against an impact acting from the lateral direction, This shock will be absorbed. On the other hand, for a load acting on the product in a vertical direction, for example, when a product is stacked, the corrugated core paper 13 is the liner paper 12 or the liner paper 12 is the corrugated core paper 13.
Are mutually supported, and the ability to support the stacking load is increased. In the above-described embodiment, a core material is not used in forming the winding body K, but a core material may be used. When a core material is used, a core material 14 having a circular cross section as shown in FIG. 3 (a portion shown by a broken line in the figure) may be used, and in some cases, a material having a square cross section as shown in FIG. Alternatively, a core material 14 having a pentagonal or more polygonal cross section may be used.

Further, even if the angled cushioning material 10 made of corrugated cardboard formed as described above has insufficient strength with respect to the stacking load, as shown in FIG.
By inserting an L-shaped paper angle member 16 therein and bonding the angle member 16 and the inner surface of the wound body K to each other, it is possible to obtain a corrugated angle shock absorber 10A having considerable strength. . Here, the paper angle member 16 is formed by laminating and bonding a plurality of strong papers such as the liner paper 16a,
It is formed so that a cross section perpendicular to the axis is L-shaped.

[0015] Figure 6-10, manufactured ZoSo location of cardboard slow <br/> collision member according to the present invention is shown. 6 is a plan view showing an embodiment of the manufacturing apparatus according to the present invention, FIG. 7 is a sectional view taken along line 7-7 in FIG. 6, FIG. 8 is a schematic side view of a single corrugated cardboard winding part in FIG. 9 is a side view showing the wound body pressing unit of FIG.
FIG. 10 is a sectional view taken along line 10-10 in FIG. FIG.
In the case of the members common to the members shown in FIGS.
The same reference numerals are given. As shown in FIGS. 6 and 7, the production apparatus cuts out a predetermined length from the raw roll 21 on which the single corrugated cardboard D is wound, and supplies the cut piece to the next wound body forming section 30. Single cardboard D from this supply unit 20
Body forming section 30 for winding a plurality of times to form a wound body k
And a pressurizing unit 40 for pressurizing and bending the wound body k.
It is composed of

First, the supply unit 20 pulls out a single corrugated cardboard D from the raw roll 21 having a predetermined width wound around a shaft 22, and cuts the single-cardboard D into a predetermined length. Here, in the illustrated embodiment, the state of the single corrugated cardboard D is such that the corrugated core paper 13 is located on the upper surface side and the liner paper 12 is located on the lower surface side. It may be located on the lower surface side.

The supply unit 20 is provided at a belt conveyor 22 for transporting a single corrugated cardboard D, a transport roller 23 driven by a motor M, and an end of the belt conveyor 22 on the entrance side. A cutter 24 for cutting the single cardboard D at predetermined lengths; the single cardboard D is sandwiched between the belt conveyor 22 and the transport rollers 23 to be drawn out onto the belt conveyor 22;

The wound body forming section 30 is provided near the lower end of the belt conveyor 22, and is provided at the top of the stepped top of the core paper 13 (excluding a portion corresponding to a cover 33 to be described later) in the single corrugated cardboard D. 8 and the waveform pitch p of the single corrugated board D as shown in FIG.
A pair of gears G, G and G having substantially the same pitch as
And a winding portion 32 including a cover 33 and the like provided so as to cover the outer periphery.

The adhesive application section 31 includes, for example, two coating rolls 34a, which are in contact with each other.
It is preferable to use an adhesive supply pipe 35 for discharging the adhesive between the two rolls 34a and 34b, but it is preferable to use a core paper in a single corrugated cardboard D as in the other example described above. In the case where 13 is located on the lower surface side of the liner paper 12, a roller composed of a rotating roller partially immersed in an adhesive tank and a pressure roller provided on the upper portion thereof may be used. preferable. However, the adhesive application section 31 is not limited to this, and a brush or the like may be used.

As shown in FIGS. 8 and 11, the cover 33 of the winding portion 32 is a box body for covering a gear G supporting both ends of the single-faced cardboard D. As shown in FIG. G is connected to the cylinder C1, and the cover 33 is connected to the cylinder C2, so that they can move forward and backward independently of each other. In addition, the code | symbol "M" in FIG.
"V" is a belt.

The pressurizing section 40 includes a support 41 for supporting the roll k formed by the roll forming section 30, and a cross section perpendicular to the axis of the roll k mounted on the support 41. It has a pressing member 42 that presses and bends and forms a substantially L-shape, and a drum-shaped rotary finishing member 43.

As shown in FIG. 9, the support base 41 has a function of pressing and bending the wound body k so that its cross section perpendicular to the axis is substantially L-shaped. It is constituted by a V-shaped angle material having a function of moving and receiving the wound body k. The lower end of the support table 41 is attached with the tip of a horizontal cylinder 44, and the support table 4
A rotation cylinder 45 is mounted to rotate the rotary member 1 so as to be able to perform pressure molding in cooperation with the pressure member 42. The horizontal cylinder 44 is supported by a receiving table 47 provided on a substrate 46, and a horizontal movement is ensured by a slide rod 48 provided through the receiving table 47.

On the other hand, the pressing member 42 includes support rods 49 and 50.
And can be moved up and down by the cylinder 51. The wound body k after being pressure-formed by the support table 41 and the pressing member 42 is rotated from the support table 41 to the rotary finishing member 43.
The movement is performed by a moving bar 52 attached to a chain conveyor 52. Here, the rotary finishing member 43 is used because the pressure-formed wound body k may be deformed until the adhesive dries, so that a number of V-shaped receiving bases 56 described later are provided. This is because the wound body k is held for a predetermined time to fix the whole shape.

As shown in FIG. 10, the drum type rotary finishing member 43 has a rotary drum 54 and a drive unit 55 (see FIG. 6) for driving the rotary drum 54. A plurality of openings O, O... For receiving the formed winding body k are provided on the side surface of the rotating drum 54,
Each opening O has a V-shaped receiving base 56 and a spring 5
A pressurizing member 58 that pressurizes under the pressure of 7 is provided. The pressing members 58 are provided in the respective openings O (only one in the figure), and the rotating drum 54 is
When the rotation of the rotary drum 54 returns to the original position after the stopper 59 moves back to the position corresponding to the position 1 while the stopper 59 moves backward,
The pressing member 58 keeps pressing the wound body k by the pressing force of the spring 57. The wound body k thus finished is pushed out by the wound body k transferred next after the rotating drum 54 makes one rotation. The rotation of the rotary drum 54 is performed by rotating a gear 60 formed on the outer peripheral surface of the rotary drum 54 by a gear 61 driven by a motor M of a drive unit 55 as shown in FIG. It has become.

Next, the operation of the manufacturing apparatus will be described. First,
Pull out one cardboard D from the raw roll 21 and cutter 24
Is cut at every predetermined length. In the illustrated embodiment, the single-faced cardboard D is formed by a corrugated core paper 13 having a liner paper 12
Is conveyed by the belt conveyer 22 and the conveying rollers 23 such that the lower side is on the lower side.

After the adhesive S is applied to the top of the corrugated paper 13 by the adhesive application section 31, the single-faced corrugated cardboard D is formed using the waveform of the corrugated paper 13 by the gear G in the cover 33. It is wound up to form a wound body k (the state shown in FIG. 11).

Next, as shown in FIG. 12, the cover 33 retracts, wound around body k is in a state of both ends are supported in engagement with the gear. Then, as shown in FIG. 13, the gear G retreats, and the wound body k falls on the support table 41 and is moved to the pressurizing section 40.

The wound body k is returned to a position immediately below the pressing member 42 by the operation of the horizontal cylinder 44, and is pressed by the V-shaped support base 41 and the pressing member 42.
It is bent and formed into a letter shape, and the adhesive S
Are bonded so as to form a substantially L-shape.

The wound body k formed on the support 41 is moved by the moving bar 51 to the opening O of the rotary finishing member 43 at a position corresponding to the support 41.

Since the pressing member 57 is provided in the opening O, when the formed winding body k enters the opening O, the stopper 59 is retracted, and the rotary drum 54 rotates. During the rotation of the rotating drum 54, the pressing member 58 continues to press the wound body k by the pressing force of the spring 57,
4 is held for several minutes, and becomes a corrugated cardboard angle material-like cushioning material solidified to have an L-shaped cross section.

In order to shorten the holding time, the heating and drying may be forcibly performed by a high frequency heating device or an electric heating device.

The cushioning material thus formed returns to its original position after one rotation of the rotary drum 54, but is pushed out to the outside by a new wound body k transferred next.

The above description is an embodiment of the present invention, and the present invention can be variously modified without departing from the gist of the claims. For example, in the above-described embodiment, the cross-sectional shape of the wound body K is formed into an L-shape, but may be formed into an acute angle or an obtuse angle V-shape or the like. Instead of using them, a predetermined length of band-shaped single corrugated cardboard may be stacked and fed one by one. Further, as shown in FIG. 14, one side of the angled cushioning material made of corrugated cardboard having an L-shaped cross section is cut into a V shape as shown by a broken line, and a cut 62 is made in the other side. By combining the end faces of the portions, the angled cushioning material made of cardboard for corners as shown in FIG. 15 can be obtained.

The rotary finishing member 43 is not limited to the drum type, but may be a belt conveyor type.

[0035]

As described above, the production of the cushioning material of the present invention is as described above .
The manufacturing equipment uses the corrugated paper of a predetermined length
Cylindrical shape by engaging with gears
Formed from a wound body and dropped from the gear
Is relatively rigid to form an L-shape
Easy and reliable molding of wound body even if
This is pressurized to form a cushioning material.
The shape can be made very easily,
It can be automated and mass-produced.

[0036]

[0037]

[Brief description of the drawings]

FIG. 1 shows the use of a cushioning material manufactured by the apparatus of the present invention.
Schematic configuration diagram showing a use state ,

2 is a sectional view taken along line 2-2 in FIG. 1,

FIG. 3 is a cross-sectional view of a wound body,

[4] is a sectional view corresponding to FIG. 3 showing an example of use using core in the winding body molding,

FIG. 5 is a sectional view corresponding to FIG. 2 showing a modified example of the wound body ,

FIG. 6 is a plan view showing an embodiment of the manufacturing apparatus according to the present invention,

FIG. 7 is a sectional view taken along the line 7-7 in FIG. 6,

8 is a schematic sectional view showing a main part of FIG. 7,

FIG. 9 is a schematic side view of a pressing unit,

FIG. 10 is a schematic side view of a drum type rotary finishing member,

FIG. 11 is a schematic vertical cross-sectional view of a winding portion,

FIG. 12 is a schematic longitudinal sectional view showing an operation state of the winding section;

FIG. 13 is a schematic longitudinal sectional view showing an operation state of the winding section,

FIG. 14 is a perspective view showing a modified example of the wound body,

FIG. 15 is a perspective view showing a usage state of a modified example of the wound body.

[Explanation of symbols]

12: Liner paper, 13: Core paper, 20: Supply unit, 30: Roll forming unit, 31: Adhesive application unit, 33: Cover, 40: Pressing unit, 41: Supporting stand, 42: Pressing Member: D: single corrugated cardboard, G: gear, K: wound body, S: adhesive.

Claims (1)

(57) [Claims] 1. A single corrugated cardboard (D) having a band-like shape and a predetermined length in which a corrugated medium paper (13) is adhered to one surface of a liner paper (12).
And a supply section (20) for supplying the same , having a pitch substantially the same as the corrugated pitch of the core paper (13) of the single corrugated cardboard (D), and provided at both end portions of the single corrugated cardboard (D).
Gear (G) for winding a single corrugated cardboard, a cover (33) provided so as to cover a part of the outer periphery of the gear (G), and the two sides of the core paper (13) in the single corrugated cardboard (D) Except for the end
Has an adhesive application section (31) for applying an adhesive (s) to the top of the corrugated crest of the corrugated paper (13). Wound part (3) forming a wound body (K) wound several times around the axis extending in the
0), and the gear (G) formed by the wound body forming portion (30 ).
And the cover (33) removed from the fallen windings support base for supporting the (K) (41), winding body placed on the support table (41)
(K) the pressure member cross section perpendicular to the shaft is bent molded under pressure in a substantially L-shaped pressure portion having (42) (40), cardboard loose衝材manufacturing apparatus comprising a.