JP2008062980A - Roll wrapping-packing method for paper roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll wrapping-packing method for wrapping the circumference of a paper roll with a long length packaging material easily. <P>SOLUTION: The packaging material 4 is fed to the paper roll 3 supported by rotatable rollers 2 to roll-wrap the paper roll. Both ends of the wind-starting end side of the packaging material 4 are pinched with a gripper G to feed the material to the circumference of the rotating paper roll 3. After the packaging material 4 goes around the paper roll 3 at least by one round, the material is released from the gripper G. After that, the wind-ending end side of the cut packaging material 4 is applied with an adhesive in the width direction and is stuck to the packaging material 4 covering the paper roll 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

    The present invention relates to a roll paper body wrapping method, and in particular, a roll that can easily cover a roll paper body with a long wrapping material without using an adhesive on the winding start start side of the wrapping material. The present invention relates to a paper body wrapping method.

    Conventionally, in a roll paper body wrapping method in which a wrapping material is wound around a roll paper body, an adhesive is used on the winding start start side of the packaging material, and the roll paper body is formed into a long wrapping material. (See, for example, Patent Document 1).

However, if an adhesive is used at the beginning of the wrapping of the packaging material, the adhesive also adheres to the roll paper that is the product. There was a problem that it could not be used.
In addition, when the packaging material is supplied to the rotating roller that supports the roll paper, there is no member that supports the packaging material between the rotating roller and the rotating roller. There was also a problem that “wrinkles” occurred in the material.
Japanese Patent No. 3091170

    An object of the present invention is to provide a roll-wrapping method for roll paper that eliminates the above-described conventional problems.

    In order to achieve the above object, the roll-wrapping method for roll paper of the present invention is supported by a rotating roller in the roll-wrapping method for roll paper in which the body of the roll paper to be wrapped is covered with a long packaging material. The roll paper is supplied to the roll paper to wrap the roll paper. The body of the roll paper is supported by the rotating roller, and the longitudinal direction of the roll of the packaging material on the winding start start side of the packaging material. After the packaging material is supplied to the body of the rotating roll paper with both ends sandwiched by grippers, and the packaging material makes at least one round of the roll paper, both longitudinal ends of the packaging material are gripped by the gripper. After the nipped state is released, the body of the roll paper is then covered with the packaging material, and an adhesive is applied in the width direction of the portion corresponding to the end of the wound end of the packaging material. And the packaging coated with the adhesive The roll paper is fed to the roll paper, and the packaging material corresponding to the end side is bonded to the roll paper covered with the roll paper through the adhesive, and the roll The body of paper is covered with the packaging material.

    Further, the roll-wrapping method for roll paper according to claim 2 is the same as the roll-wrapping method for roll paper according to claim 1, wherein the speed of the gripper holding the both ends in the longitudinal direction of the packaging material is the same as the rotation speed of the rotary roller. It is to make.

    Further, the roll-wrapping method for roll paper according to claim 3 is the roll-wrapping method for roll paper according to claim 1, wherein after the state in which both ends in the longitudinal direction of the packaging material are sandwiched between grippers is released, The rotational speed is made faster than the rotational speed of the rotating roller before the release.

    According to a fourth aspect of the present invention, there is provided a roll paper packaging method according to the first aspect, wherein the long packaging material supplied to the roll paper supported by the rotating roller is made of a material. Two or more different packaging materials are stacked and supplied.

    According to the roll-wrapping method for roll paper according to claim 1, the roll paper body is supported by a rotating roller, and the both ends in the longitudinal direction of the packaging material on the starting start side of the packaging material are sandwiched between grippers. The packaging material is supplied to the body of the roll paper that rotates, and after the packaging material has made at least one round of the roll paper, the state in which both ends in the longitudinal direction of the packaging material are sandwiched by grippers is released, and then Since the roll paper body is covered with the wrapping material, the winding start start end portion of the wrapping material does not depend on the adhesive as in the conventional case, and the roll paper of the portion is not cut as in the conventional case. Alternatively, the roll paper of the portion can be used, and both ends in the longitudinal direction of the packaging material are sandwiched between grippers, and the packaging material is supplied to the roll paper in a tensioned state. There are effects such as preventing the occurrence .

    According to the roll-wrapping method for roll paper according to claim 2, in addition to the effect of the invention according to claim 1, the speed of the gripper that sandwiches both ends in the longitudinal direction of the packaging material and the rotational speed of the rotating roller. Therefore, the gripper speed can be easily controlled.

    Further, according to the roll-wrapping method for roll paper according to claim 3, in addition to the effect of the invention according to claim 1, the speed of the gripper holding both ends in the longitudinal direction of the packaging material is set to the rotational speed of the rotary roller. If it cannot be done earlier, after releasing the state in which both ends in the longitudinal direction of the packaging material are gripped by the gripper, the rotation speed of the rotation roller is made faster than the rotation speed of the rotation roller before the release, so Packaging can be made faster.

    In addition, when two or more types of packaging materials of different materials are packaged on the roll paper body, conventionally, after packaging one packaging material on the roll paper body first, the next is different from the one packaging material. However, according to the roll paper body wrapping method of claim 4, the long packaging material supplied to the roll paper supported by the rotating roller is made of a material. Since two or more different wrapping materials are stacked and the two or more wrapping materials are sandwiched between grippers and simultaneously packaged, roll paper can be packaged in a short time.

A roll paper packaging method according to an embodiment of the present invention will be described with reference to the drawings.
1 and 2, reference numeral 1 denotes a roll paper packaging device. The roll paper packaging device 1 generally has an elongated body portion of a roll paper 3 to be packaged supported by rotating rollers 2 and 2. The roll paper 3 is wrapped by covering with a packaging material 4 (for example, kraft paper, polyethylene laminated paper, etc.).

    The roll paper 3 supported by the rotary rollers 2 and 2 is placed at a packaging position supported by the rotary rollers 2 and 2 by appropriate means such as a conveyor (not shown) provided on the side of the roll paper packaging device 1. Supplied.

    While the packaging material 4 is being supplied to the roll paper 3, the guide roller 5, the cutter 6 that cuts the packaging material 4 into a predetermined length, the inclined conveyor 7, and the packaging material 4 are sucked to crease the packaging material 4. A suction box 8 is provided.

    A coating device 10 (for example, a hot melt coating device) is provided above the inclined conveyor 7, and an adhesive 11 (for example, a general paper-based hot melt adhesive in a molten state) is provided in the coating device 10. Are sequentially supplied, and the rear end side of the packaging material 4 is applied instead of the front end side of the packaging material 4.

Next, a roll-wrapping method for roll paper will be described.
When the roll paper 3 is supplied to the packaging position by appropriate means such as a conveyor (not shown), the rotation rollers 2 and 2 are rotated by a driving means (not shown), and the roll paper 3 is also rotated along with the rotation of the rotation rollers 2 and 2. As shown in FIG. 3, the robot gripper 100 is positioned at both ends of the roll paper 3.
The robot gripper 100 includes grippers G and G and suction portions B and B provided on the arms 102 and 102 of the support members 101 and 101.
The grippers G and G sandwich both ends in the longitudinal direction of the packaging material 4 on the winding start start side of the packaging material 4, and the grippers G and G cross the longitudinal direction of the packaging material 4, that is, the packaging material 4. (See FIGS. 6 and 7), and the adsorbing portions B and B adsorb the circular member 30 covering the side surface of the roll paper by, for example, vacuum. Yes (see FIG. 4 and FIG. 5).
The circular member 30 is made of circular corrugated cardboard that matches the end shape of the roll paper 3.

The packaging material 4 is supplied by a driving means (not shown) via the guide roller 5, the inclined conveyor 7, and the suction box 8, and stops before the roll paper 3 and stands by. Then, both ends in the longitudinal direction of the packaging material 4 on the winding start start side of the packaging material 4 are clamped by the gripper G of the robot gripper 100 [FIGS. 6 and 8B], and the packaging material 4 is held in the sandwiched state. After being supplied to the body of the rotating roll paper 3 and the packaging material 4 goes around the roll paper 3, the state in which both ends in the longitudinal direction of the packaging material 4 are clamped by the gripper G is released [FIGS. 7 and 8. (C)].
That is, when the wrapping material 4 goes around the roll paper 3, the starting point of winding of the wrapping material 4 is formed by the own weight of the roll paper 3 without using the adhesive as in the conventional case. Even after releasing the state where both ends in the longitudinal direction of the packaging material 4 are clamped by the gripper G after the circuit 3 is made a round, the packaging material 4 is continuously supplied to the body of the rotating roll paper 3, The body of the paper 3 is covered with the packaging material 4.
Note that when the packaging material 4 is sandwiched by the gripper G and the packaging material 4 is supplied to the body of the rotating roll paper 3 in the sandwiched state, the speed of the gripper G that sandwiches both ends of the packaging material 4 in the longitudinal direction. Since the rotational speed of the rotary roller 3 is the same, the speed of the gripper G can be easily controlled.
In addition, after the packaging material 4 makes a round of the roll paper 3, the state in which both end portions in the longitudinal direction of the packaging material 4 are clamped by the gripper G is released, but the present invention is not limited thereto, The packaging material 4 may release the roll paper 3 at an appropriate position such as two or three times. In the present invention, after the packaging material 4 makes at least one round of the roll paper 3, the state in which both end portions in the longitudinal direction of the packaging material 4 are sandwiched by the grippers G may be released.

Then, when the long packaging material 4 reaches a predetermined length, it is cut by the cutter 6, and the adhesive is applied by the coating device 10 in the width direction of the portion corresponding to the end side at the end of winding of the packaging material 4. 11 is applied, the packaging material 4 corresponding to the end side and the packaging material 4 covered with the roll paper 3 are adhered to each other via an adhesive, and the body of the roll paper 3 is attached to the packaging material. 4 will be covered.
Moreover, when covering the trunk | drum of the roll paper 3 with the elongate packaging material 4, as shown in FIG.9 and FIG.10, both sides of the packaging material 4 are folded by the ear folding member 31, and the inner side contact plate 30 is fixed. ing. For example, the folding is performed after releasing the state in which both end portions of the packaging material 4 in the longitudinal direction are held between the grippers G.

In the above-described embodiment, the speed of the gripper G that holds both ends of the packaging material 4 in the longitudinal direction is synchronized with the rotational speed of the rotary roller 2. However, when the rotational speed of the rotary roller 2 is slow, There is no problem, but if the rotational speed of the rotating roller 2 is increased, the speed of the gripper G that sandwiches both ends of the packaging material 4 in the longitudinal direction may not be increased.
In such a case, after releasing the state in which both ends in the longitudinal direction of the packaging material 4 are clamped by the gripper G, the rotation speed of the rotation roller 2 is made faster than the rotation speed of the rotation roller 2 before the release, whereby roll paper 3 can be wrapped faster.
For example, the tension when the packaging material 4 is pulled by the gripper G is detected by a sensor (not shown), and the rotation speed of the rotating roller 2 or the robot is set so that the tension value becomes constant (or a specified value). The packaging material 4 is started to be wound while the operation speed of the gripper G of the gripper 100 is controlled.
Then, after the packaging material 4 has made at least one round of the roll paper 3, after releasing the state in which both ends in the longitudinal direction of the packaging material 4 are held by the gripper G, before the rotational speed of the rotating roller 2 is released. The rotational speed of the rotary roller 2 can be made faster, so that the roll-wrapping of the roll paper 3 can be made faster.

    In the above-described embodiment, the long packaging material 4 supplied to the roll paper 3 supported by the rotating roller 2 is single, but the present invention is not limited to this. Although not shown, two or more packaging materials of different materials are stacked, the two or more overlapping packaging materials are sandwiched between grippers G, and the two or more overlapping packaging materials are tensioned and supplied to the roll paper 3. You may do it. For example, the upper wrapping paper is a wrapping paper having high rigidity (for example, kraft paper), and the lower wrapping paper is a wrapping paper having a high waterproof property (for example, polylamination paper).

FIG. 1 is a side view schematically showing a roll paper packaging apparatus for carrying out a roll paper body wrapping method according to an embodiment of the present invention. FIG. 2 is a schematic perspective view of the roll paper packaging apparatus of FIG. FIG. 3 is a schematic perspective view of the robot gripper of FIG. FIG. 4 is a schematic perspective view showing a process in which a circular member is adsorbed by the adsorbing portion of FIG. 2 and the side surface of the roll paper is covered with the circular member. FIG. 5 is a schematic perspective view showing a state before the side surface of the roll paper is covered with a circular member at the suction portion in FIG. 2 and both ends in the longitudinal direction of the packaging material are sandwiched between grippers of the robot gripper in FIG. FIG. 6 is a schematic perspective view showing a state in which the roll paper is sandwiched by the gripper shown in FIG. FIG. 7 is a schematic cross-sectional view showing a state where the gripper of FIG. 2 is rotating at the same speed as the rotation speed of the roll paper. 8A is a schematic plan view showing a state before the roll paper is sandwiched by the gripper of FIG. 2, and FIG. 8B is a schematic view showing a state of the roll paper being sandwiched by the gripper of FIG. FIG. 8C is a schematic plan view showing a state in which the roll paper held by the gripper of FIG. 2 is released. FIG. 9 is a schematic perspective view showing a state before folding both sides of the packaging material by the ear folding member. FIG. 10 is a schematic perspective view showing a process of folding both sides of the packaging material by the ear folding member. FIG. 11 is a schematic perspective view of roll paper packaged by the roll paper packaging apparatus of FIG. 1.

Explanation of symbols

2 Rotating roller 3 Roll paper 4 Packaging material
G Gripper

Claims (4)

In the roll-wrapping method for roll paper covering the body of the roll paper to be wrapped with a long packaging material,
Supplying the packaging material to the roll paper supported by a rotating roller to wrap the roll paper,
The roll paper body is supported by the rotating roller, and the roll paper body rotates the packaging material in a state in which both ends in the longitudinal direction of the packaging material on the start end side of the packaging material are sandwiched by grippers. After the packaging material makes at least one round of the roll paper, the state in which both ends in the longitudinal direction of the packaging material are sandwiched by grippers is released, and then the body of the roll paper is the packaging material. The adhesive is applied in the width direction of the portion corresponding to the end of winding at the end of winding of the packaging material covered and cut, and the packaging material applied with the adhesive is supplied to the roll paper to be rotated. Then, the portion of the packaging material corresponding to the end side is bonded to the packaging material covered with the roll paper through the adhesive, and the body of the roll paper is covered with the packaging material. A roll-wrapping method for roll paper.     2. The roll-wrapping method for roll paper according to claim 1, wherein the speed of the gripper holding both ends in the longitudinal direction of the packaging material and the rotational speed of the rotary roller are the same.     2. The roll paper according to claim 1, wherein after releasing the state in which both ends in the longitudinal direction of the packaging material are held by grippers, the rotation speed of the rotation roller is made faster than the rotation speed of the rotation roller before the release. Torso wrapping method.     2. The roll paper according to claim 1, wherein the long packaging material supplied to the roll paper supported by the rotating roller is supplied by stacking two or more packaging materials of different materials. Body winding packaging method.

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