JPH0930521A - Surface covering cutting device for roll article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut open a wrapping material around the circumferential face of roll paper with a surface covering cutting device pierced without troubles even though the wrapping material is partly left behind at the end of the roll paper. SOLUTION: A claw 51 of a claw unit 50 is pressed with a pressing part 40 against the end of roll paper 1, and the claw 51, being pressed against the end, is moved outward in the direction of radius to a specified position, and thereby wrapping materials left behind after cutting are removed. Then, the claw 51 is divided into two parts, and cutting is made on the surface covering with a surface covering cutting device 10 moved through the divided claws in parallel with the axis of the roll.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll-shaped material skin-cutting device for axially incising a packing material on a peripheral surface of a roll-shaped material, and more particularly to a package formed by packing the roll-shaped material. The present invention relates to an apparatus for facilitating the removal of the packing material on the peripheral surface of the material whose end surfaces have been removed.
Here, the roll-like material is a roll paper mainly used in a rotary printing machine, but other than that, a roll-like material made of a material such as plastic, paper, metal, wood, or a composite thereof. May be Also, as a packing material,
It includes various packaging materials such as kraft paper, paperboard and plastic sheets.

[0002]

2. Description of the Related Art In general, roll paper used in a rotary printing press is transported with its peripheral surface and end surface covered by packing materials such as kraft paper, paperboard, and vinyl chloride resin sheet. Then, in order to apply this packed roll paper to the rotary printing machine, first remove the packing material on both end surfaces of the roll paper,
Next, the packing material on the peripheral surface is removed, and then the surface layer of the main paper is unwound from the roll paper, and the tip of the paper is put in an appropriate shape (for example,
Paper that is cut into a V shape to form the paper edge, forms an adhesive layer on the paper edge, then rewinds the paper edge onto roll paper and temporarily fixes it on the roll paper surface using a fray-stop tab. We are tailoring for piecing.

Among these tailoring operations, an apparatus for removing the packing material on both end surfaces is disclosed in Japanese Patent Application Laid-Open No. 1-103293. Further, Japanese Patent Application Laid-Open No. 4-44940 discloses an apparatus that automates the process after removing the packing material on the end face portion. In the device described in the latter publication, in order to remove the packaging material on the peripheral surface portion of the roll paper, as shown in FIGS. 4 and 5, the peripheral surface of the roll paper 1 after the packaging material on the end surface is removed. The packaging material 2 and the surface layer main paper (one to several main papers on the surface of the roll paper) 1a are displaced in the axial direction of the roll paper 1, and then the wedge-shaped incision tool 3 is pressed against the outer peripheral surface of the end portion of the roll paper 1, As shown in FIG. 6, the wedge-shaped incision tool 3 is axially moved in a state of being pressed against the outer peripheral surface of the roll paper 1, and the outer skin 4 including the packing material 2 and the surface main paper 1a is incised over the entire width. Then, the roll paper 1 was rotated to remove the incised skin 4.

[0004]

However, in the above-mentioned conventional apparatus, the skin 4 to be cut on the peripheral surface of the roll paper 1 is displaced in the axial direction of the roll paper 1 before the incision is made by the wedge-shaped incision tool 3. Therefore, there is a problem in that it requires an operation and time for that. Therefore, the applicants of the present invention insert a skin cutting tool for cutting the skin directly into the end surface of the roll paper without shifting the skin 4 in the axial direction of the roll paper 1, and insert the skin cutting tool along the roll paper. We have developed a device to move and cut the epidermis.

However, it has been found that the following problems occur when the skin cutting tool is directly pierced into the end surface of the roll paper. That is, even after the packaging material on the end surface of the roll paper has been cut and removed, even if some of the roll paper has the shape shown in FIG.
As shown in FIG. 6, a part of the end surface packing material may remain as the remaining packing material 5 on the outer peripheral surface of the end surface, and if the uncut packing material 5 is present at the portion to be pierced with the skin cutting tool, Is the packaging material 5 where the tip of the epidermis cutting tool is left uncut.
There was a problem that a cutting error occurred because it could not be stabbed and pierced.

In such a case, the roll paper is rotated to pierce the skin cutting tool at a position where there is no uncut packing material, or the uncut packing material 5 is completely removed manually. Although it is sufficient to pierce the epidermis-cutting tool, it is inconvenient because manpower is required in both cases. It is also conceivable to detect unwrapped packaging material with a sensor, etc. and pierce the skin cutting tool while avoiding it, but it is extremely difficult to detect the uncut packaging material, and there are many false detections by the sensor, resulting in loss of time. Occurs and is not a preferable method.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a skin even when there is a residual cut material on the end face of a roll-shaped material such as roll paper. It is an object of the present invention to provide a skin-cutting device for a roll-shaped object, which can pierce a cutting tool without causing any trouble and cut the packaging material around the roll paper.

[0008]

In order to achieve the above object, the present invention is a skin-cutting device for incising a peripheral packing material for a roll-shaped material set at a predetermined position, which is a roll-shaped material. A skin cutting tool that moves in parallel to the axis of the roll-shaped material to cut the skin including the packing material on the peripheral surface, a pressing part attached to the running part, and a pressing part that is attached to the pressing part and rolls by the pressing part. By being moved outward in the radial direction by the traveling part while being pressed against the end surface of the roll-shaped material, it can be opened / closed to operate so as to dispel the unwrapped packing material remaining on the end surface of the roll-shaped material. Reciprocating between a claw unit having a large claw and a retracted position where the claw unit comes into contact with the peripheral surface of the roll-shaped object and is separated therefrom.
And a positioning portion that defines a movement end position of the claw unit in the forward movement position, and when the claw of the claw unit opens in two at the movement end position, the epidermal cutting tool moves between the claws. It is characterized in that it is configured so that an incision is made in the epidermis by inserting it from the end face of the roll-shaped object.

In the skin-cutting device having the above-mentioned structure, when the roll-shaped material is set at a predetermined position, the claw portion unit is pressed against the end surface of the roll-shaped material by the pressing portion.
On the other hand, the positioning portion advances and comes into contact with the peripheral surface of the roll-shaped material. Next, the claw unit moves to the outside in the radial direction of the roll-shaped material by the traveling portion while being pressed against the end surface of the roll-shaped material, and if there is a cut-out packing material at that position, the cut-out packing material is removed. While being dispelled from the end surface of the roll-shaped material, the positioning portion stops at a predetermined position.
After that, the claws of the claw unit are opened in two to cut the remaining packing material, and the skin cutting tool moves between the opened claws to cut the skin including the packing material on the peripheral surface of the roll-shaped object. Go.

[0010]

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

FIG. 1 is a schematic side view showing an example of the epidermis cutting device according to the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a schematic plan view showing a main part of the epidermis cutting device. The skin-cutting device of the present invention is used to cut out the skin formed from the packaging material on the peripheral surface and the surface layer main paper from the roll paper (rolled material) after removing the packaging material on the end surface.

In the figure, reference numeral 10 is a skin cutting tool comprising a spatula 11 and a rotary blade 12, which is moved in parallel with the axial direction of the roll paper 1 by a driving means (not shown). The rotary blade 12 is mounted so as to be positioned in a groove formed in the spatula 11, and the spatula 11 scoops up the epidermis when the translational movement is made, and the rotary blade 12 cuts the scooped up skin. The rotary blade 12 is also rotated during parallel movement by an unillustrated rotary drive means to cut the epidermis.

Reference numeral 20 denotes an arm portion, which is an air cylinder 21.
Thereby swings around the support shaft 22 within a predetermined angle range.
Reference numeral 30 denotes a traveling portion provided at the tip of the arm portion 20,
As the arm section 20 swings, it moves back and forth between the side position of the end surface of the roll paper 1 and the position away from it. here,
The air cylinder 21 does not descend even if the air source is cut off.
It is a lockup cylinder on the head side. Running section 3
Reference numeral 0 has an air cylinder 31 attached to the tip of the arm portion 20, and a pressing portion 40 is attached to the tip of the cylinder rod. This pressing part 40
A guide plate 41 is integrally attached to the guide plate 41, and the guide plate 41 is guided to the tip portion of the arm portion 20. Therefore, the operation of the air cylinder 31 causes the pressing portion 4 to move.
0 reciprocates straight. Further, a claw portion unit 50 that reciprocates in a direction orthogonal to the guide plate 41 by the operation of the air cylinder 42 is attached to the pressing portion 40. The claw portion unit 50 has an acute tip shape and
It has a claw 51 which can be opened and closed, and the claw 51 is adapted to be opened and closed by an air chuck 52.

In the figure, reference numeral 60 is a positioning portion, which is provided with stop members 63 and 64 at both ends of a plate member 62 attached to a cylinder rod of an air cylinder 61. The shorter stop member 63 can reciprocate between an advancing position in which it comes into contact with the peripheral surface of the roll paper 1 and a retracted position in which it separates. By contacting the member 64, the claw unit 50
The moving end position of the is specified.

Next, the operation of the epidermis cutting device having the above construction will be described. The following operation is automatically performed by a sequencer (not shown).

First, the roll paper 1 from which the packaging materials at both ends are removed is unmanned and conveyed to a work place by a carriage, a conveyor, or the like. Then, the conveyed roll paper 1 is lifted by holding its core from both sides by a chucking arm, or is placed on two rotatable parallel rollers with their axial directions aligned. Rises and is set in position for the cutting operation by the epidermis cutting device. At this time, the arm portion 20 is at the position indicated by the chain double-dashed line in FIG. 1, and interference with the roll paper 1 is avoided. Then, after the setting of the roll paper 1 is confirmed, the arm portion 20 swings down by the air cylinder 21 and descends, and stops at the reference line for incision. Simultaneously with the lowering of the arm portion 20, the air cylinder 61 of the positioning portion 60 is operated and moved forward until the stop member 63 comes into contact with the end surface of the roll paper 1.

Next, after confirming the lowering and stopping of the arm section 20, the air cylinder 42 of the pressing section 40 is operated to press the claw 51 of the claw section unit 50 against the end surface of the roll paper 1. At this time, the pressing pressure is set in advance and scratches on the end face can be prevented. The claw 51 of the claw unit 50 pressed against the end surface of the roll paper 1 by the pressing unit 40 remains in the pressed state and the traveling unit 3
The air cylinder 31 of 0 moves the end surface of the roll paper 1 outward in the radial direction, and if there is a residual packing material near the outer periphery of the end surface of the roll paper 1, the residual packing material is removed. Raise and remove from the end face. Then, the claw unit 50 moves until the support frame 43 of the pressing unit 40 contacts the stop member 64 of the positioning unit 60. In this case, the movement amount of the claw unit 50 varies depending on the diameter of the roll paper 1, but the movement end position is defined by the positioning unit 60.

When the pawl unit 50 reaches the movement end position, the brake provided in the air cylinder 31 of the traveling unit 30 is immediately actuated to fix the pawl unit 50. After the fixing of the claw unit 50 is completed, the positioning unit 60 is retracted, and at the same time, the air chuck 5 of the claw unit 50 is moved.
2 operates to open the claw 51 in two and cut the uncut residual packing material.

After that, the epidermis cutting tool 10 moves parallel to the axial direction of the roll paper 1, and the tip of the spatula 11 bites into the inside of the epidermis so as to pass between the open claws 51, and the epidermis is scooped up. The rotary blade 12 cuts the epidermis. At this time, the remaining uncut packaging material is the nail 5 of the nail unit 50.
Since the spatula 11 is in the state of being rejected, the spatula 11 can be reliably pierced into the end face of the roll paper 1, and the rejected uncut packing material can be reliably cut by the rotary blade 12. it can.

A spatula 11 and a rotary blade 12 of the epidermis cutting tool 10.
After confirming that the paper has been inserted into the roll paper 1, the pressing unit 40 returns to the original position, the traveling unit 30 then retracts, the arm unit 20 rises and returns to the avoidance position, and prepares for the next operation. On the other hand, after the skin cutting tool 10 moves over the entire width of the roll paper 1 and incises the skin over the entire width, the roll paper 1 is the same as the device described in JP-A-4-44940. , Tailoring operation is performed.

In the above embodiment, the epidermis cutting tool 1
Although 0 is composed of a spatula 11 and a rotary blade 12, the present invention is not limited to the epidermal cutting tool having this structure, and a wedge-shaped incision tool that has been conventionally used may be used. However, it is preferable to use the spatula 11 and the rotary blade 12 as in the above-described embodiment, because the skin can be easily cut, the cut end is clean, and the inner main paper is less likely to be damaged. . Further, in the above embodiment, the case where the packaging material of the roll paper is cut has been described, but the target to be cut is not limited to the roll paper and may be another roll-shaped material or a plate-shaped material.

[0022]

As described above, according to the epidermis cutting device of the present invention, before the epidermis cutting tool is pierced into the end face of the roll-shaped object, the pawls of the pawl unit are radially outward along the end face. By moving it to, even if there is uncut packaging material left in that part, the uncut packaging material can be dispelled to the outside of the end face of the roll-shaped material, and the epidermal cutting tool can be used without any hindrance. The packaging material can be cut by inserting it into the end face of the. In addition, the claw of the claw unit is opened in two, and after removing the uncut residual packing material, the skin cutting tool passes between the opened claws, thereby reliably cutting the packing material. be able to.

[Brief description of drawings]

FIG. 1 is a schematic side view of an epidermal cutting device according to the present invention.

FIG. 2 is a partially enlarged view of FIG.

FIG. 3 is a schematic plan view showing a main part of FIG.

FIG. 4 is a schematic perspective view showing a state before the packaging material for roll paper and the main surface paper are cut by a conventional method.

5 is a schematic cross-sectional view showing the same state as in FIG.

FIG. 6 is a schematic perspective view showing a state in which a packaging material for roll paper and a surface layer main paper are cut by a conventional method.

FIG. 7 is a schematic perspective view showing a residual cut packaging material remaining on the end surface of the roll paper.

[Explanation of symbols]

 1 Roll Paper 1a Surface Layer Main Paper 2 Packing Material 4 Skin 10 Skin Cutting Tool 11 Spatula 12 Rotating Blade 20 Arm Part 21 Air Cylinder 30 Traveling Part 31 Air Cylinder 40 Pressing Part 41 Guide Plate 42 Air Cylinder 43 Support Frame 50 Claw Unit 51 Claw 52 Air Chuck 60 Positioning Part 61 Air Cylinder 62 Plate Material 63, 64 Stopping Member

Claims (1)

[Claims] 1. A skin cutting device for cutting a peripheral packaging material of a roll-shaped object set at a predetermined position, wherein the roll-shaped cutting material cuts the epidermis including the packaging material of the peripheral surface of the roll-shaped material. A skin cutting tool that moves parallel to the axis of the object, a pressing part attached to the running part, a radius attached by the pressing part that is attached to the pressing part and is pressed against the end surface of the roll-shaped object by the pressing part. Claw unit having two claws that can be opened and closed, and the peripheral surface of the roll-shaped object, which moves to move away the uncut packing material remaining on the end surface of the roll-shaped object by being moved outward in the direction of It is possible to reciprocate between the forward position where it contacts the
A positioning portion that defines a movement end position of the claw unit at the forward movement position, and the skin cutting tool moves between the claws when the claw of the claw unit is opened into two at the movement end position. A device for cutting a skin of a roll, which is configured to be inserted from an end surface of the roll to make an incision of the skin.