JP2014210318A - Anvil roll, and rotary die cut device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anvil roll, and a rotary die cut capable of carrying out full-cutting and half-cutting even if the height of a cutting blade is fixed, facilitating manufacturing, and easily correcting dimensions after manufacturing.SOLUTION: An anvil roll 20 includes: a center shaft 21; first roll body portions 22 and 23 which are columnar members having hole portions 22a and 23a for attaching/detaching to/from the center shaft 21; and a second roll body portion 24 which is a columnar member having a hole portion 24a for attaching/detaching to/from the center shaft 21, and having larger outer diameter dimensions of a cylinder surface than that of the first roll body portions 22 and 23. The first roll body portions 22 and 23 and the second roll body portion 24 are combined to the center shaft 21.

Description

  The present invention relates to an anvil roll and a rotary die cutting device used for cutting a continuous label or a tag.

  Conventionally, a cutting method called die cutting has been performed for cutting a continuous label or a tag. For this die cutting, a rotary die cutting device including a die cutting roll provided with a cutting blade and an anvil roll disposed to face the die cutting roll is used.

  In die cutting for cutting a continuous label body, a full cut that completely cuts up to the mount portion and a half cut that cuts the label on the mount but does not cut the mount are often used. Since the full cut and the half cut are simultaneously performed by die cutting, conventionally, a height difference is provided in the height of the cutting blade on the die cut roll.

However, there is a problem that a die-cut roll having a cutting blade with a height difference is difficult to manufacture.
Moreover, at the time of a cutting | disconnection, although a cutting blade with a high height contacts with an anvil roll, a cutting blade with a low height does not contact with an anvil roll. Therefore, the wear of only the cutting blade having a high height has progressed, resulting in a defective cutting. In this case, the height of the cutting blade is corrected by reshaping the cutting blade of the die cut roll. However, this operation is also difficult and takes time.

  With respect to such problems, Patent Document 1 discloses a technique in which the height of the cutting blade of the die cut roll is constant and a difference in height is provided on the anvil roll side.

JP-A-6-91600

  However, in the technique disclosed in Patent Document 1, “a step of stretching a sheet plate having a thickness at least equal to the height of the convex portion on the anvil roll surface, and a convex portion to be formed on the anvil roll surface. Cutting out the sheet plate according to the shape, removing the cut out part, applying hard chrome plating to the cut out part of the sheet plate, forming the overlay, and removing the sheet plate after the plating process And a step of polishing the build-up portion formed on the anvil roll to form a convex portion having a predetermined dimension.

Therefore, the technique disclosed in Patent Document 1 has a problem that the manufacturing process of the anvil roll is complicated and a special manufacturing process that is not normally used is used.
Further, in the method disclosed in Patent Document 1, it is conceivable to correct the height of the anvil roll when wear of the cutting blade that performs full cut progresses. However, in that case, it is necessary to perform the same operation as the manufacturing process of the anvil roll described above, and considering that alignment with the existing convex portion is necessary, it is easier to manufacture a new anvil roll, There was a problem that it was not practical to correct the height of the anvil roll.

  An object of the present invention is to provide an anvil roll and a rotary die cutting device that can perform full cut and half cut even if the height of the cutting blade is constant, is easy to manufacture, and is easy to correct the dimensions after manufacture. Is to provide.

  The present invention solves the above problems by the following means.

  Invention of Claim 1 is an anvil roll used for a rotary die-cutting apparatus, Comprising: The 1st roll which is a column-shaped member which has the hole for making it attachable / detachable with respect to the center axis | shaft and the said center axis | shaft A cylindrical member having a main body and a hole for making it attachable to and detachable from the central axis, wherein the outer diameter of the cylindrical surface is larger than that of the first roll main body. 2 roll main body portions, and an anvil roll configured by combining the first roll main body portion and the second roll main body portion with respect to the central axis.

  A second aspect of the present invention is the anvil roll according to the first aspect, wherein a plurality of the first roll body portion and the second roll body portion are combined. is there.

  The invention of claim 3 is the anvil roll according to claim 1 or claim 2, wherein at least one of the first roll body part and the second roll body part includes a plurality of types having different widths. It is an anvil roll characterized by being combined.

  Invention of Claim 4 is equipped with the anvil roll of any one of Claim 1- Claim 3, and the die-cut roll arrange | positioned facing the said anvil roll, The said die-cut roll is high. The cutting blade has a half-cut without contacting the cylindrical surface of the first roll main body, and the cylindrical surface of the second roll main body A rotary die-cutting device that performs full-cut by contact.

  The invention of claim 5 is the rotary die cutting device according to claim 4, wherein the cutting blade has higher wear resistance than the cylindrical surface of the second roll main body. is there.

  According to the present invention, the anvil roll and the rotary die cutting device can perform full cut and half cut even when the height of the cutting blade is constant, can be easily manufactured, and can be subjected to dimensional correction after manufacturing. Easy to do.

It is the schematic which shows embodiment of the rotary die-cut apparatus 1 provided with the die-cut roll 10 by this invention. It is the schematic which shows an example of the to-be-cut medium P cut | disconnected by the rotary die-cut apparatus. FIG. 2 is a schematic exploded perspective view showing the parts constituting the anvil roll 20 in an exploded manner. It is a schematic perspective view which shows the state assembled to the form which can use the anvil roll. It is a schematic sectional drawing which shows the relationship between the cutting blades 10a and 10b, the 1st roll main-body parts 22 and 23, and the 2nd roll main-body part 24 in a contact position.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment)
FIG. 1 is a schematic view showing an embodiment of a rotary die cutting apparatus 1 provided with a die cut roll 10 according to the present invention.
In addition, each figure shown below including FIG. 1 is the figure shown typically, and the magnitude | size and shape of each part are exaggerated suitably for easy understanding.
In the following description, specific numerical values, shapes, materials, and the like are shown and described, but these can be changed as appropriate.

  The rotary die cutting apparatus 1 includes a die cutting roll 10 and an anvil roll 20 and performs die cutting for continuously cutting a medium to be cut P such as a continuous label body or a continuous tag body. Although not shown, for example, a scrap removing device that separates the scrap portion formed on the base material P3 of the medium P to be cut by half cutting may be provided on the downstream side of the rotary die cutting device 1.

  The die cut roll 10 is made of a steel material such as tool steel, and is rotationally driven by a motor (not shown) via a driving force transmission mechanism (not shown).

The anvil roll 20 is made of a steel material such as tool steel, and is disposed to face the die cut roll 10.
The rotary die cutting apparatus 1 conveys the medium P to be cut between the die cut roll 10 and the anvil roll 20. At this time, the rotary die-cutting apparatus 1 presses the die-cut roll 10 against the medium P to be cut and rotates it by cutting blades 10a and 10b (see FIG. 5) provided on the die-cut roll 10 so that the desired medium P is cut. Form full cut and half cut of shape.

FIG. 2 is a schematic diagram illustrating an example of a medium P to be cut by the rotary die cutting apparatus 1.
2 indicates a contact position where the medium P to be cut is sandwiched between the die cut roll 10 and the anvil roll 20 and comes into contact therewith. Die cutting is performed at this contact position. In addition, it is assumed that the medium P to be cut is conveyed in the right direction indicated by an arrow in FIG.
In the example illustrated in FIG. 2, the medium P to be cut is a continuous label body in which a base material P3 is laminated on a backing sheet P1 via an adhesive layer P2 (see FIG. 5), and is formed wide before cutting. Yes. The rotary die cutting apparatus 1 fully cuts this cut medium P into three rows (full cut) along the full cut lines L1 and L2, and forms the base material into a label shape along the substantially rectangular half cut lines L3, L4 and L5. Cut halfway between P3 and adhesive layer P2.

FIG. 3 is a schematic exploded perspective view showing the parts constituting the anvil roll 20 in an exploded manner.
The anvil roll 20 includes a central shaft 21, first roll body parts 22 and 23, a second roll body part 24, a pin 25, and a key 26.

  The central axis 21 is an axis that becomes the rotation center of the anvil roll 20. The central shaft 21 is provided with a keyway 21a. The central shaft 21 may be provided with a flange portion or the like whose outer diameter shape is increased by one step in order to determine the positions in the thrust direction of the first roll body portions 22 and 23 and the second roll body portion 24. . Further, the central shaft 21 may be provided with an engagement shape for enabling attachment of a gear or the like connected to a driving force transmission mechanism (not shown).

The 1st roll main-body parts 22 and 23 are formed in the column shape, and the hole parts 22a and 23a are provided in the center, respectively. The holes 22 a and 23 a are for making the first roll body 22 and 23 detachable from the central shaft 21.
Pin holes 22b and 23b are formed on both end faces of the first roll body portions 22 and 23, respectively. The pin 25 is inserted into the pin holes 22b and 23b, and the first roll main body portions 22 and 23 rotate integrally with the second roll main body portion 24 arranged next to each other. Yes.
The first roll body 22 is provided with a key groove 22c in the hole 22a, and only this point is different from the first roll body 23. However, for example, the first roll body 23 may be provided with a key groove, or may be integrated with the central shaft 21 in a rotational direction by a method other than the key groove.

The second roll main body 24 is a columnar member having a cylindrical surface with a larger outer diameter than the first roll main body 22, 23. The 2nd roll main-body part 24 has the hole 24a in the center. The hole 24 a is for making the second roll body 24 detachable from the central shaft 21.
Pin holes 24 b are formed on both end faces of the second roll body 24. The pin 25 is inserted into the pin hole 24b, and as described above, the first roll body portions 22 and 23 and the second roll body portion 24 are all rotated integrally. In addition, the structure for rotating the 1st roll main-body parts 22 and 23 and the 2nd roll main-body part 24 integrally is not restricted to the method using the pin 25 mentioned above, You may change suitably.

  The 1st roll main-body parts 22 and 23 and the 2nd roll main-body part 24 have the very simple shape as mentioned above. Therefore, the 1st roll main-body parts 22 and 23 and the 2nd roll main-body part 24 can be manufactured simply and cheaply by a very common machine tool.

  The pin 25 is a knock pin inserted into the pin holes 22b and 23b and the pin hole 24b.

  The key 26 is incorporated in the key groove 21a of the central shaft 21 and the key groove 22c of the first roll main body 22 so that the central shaft 21 and the first roll main body 22 can rotate together.

FIG. 4 is a schematic perspective view showing a state where the anvil roll 20 is assembled into a usable form.
In the anvil roll 20 of this embodiment, as shown in FIG.3 and FIG.4, from the near side of a figure, the 1st roll main-body part 22, the 2nd roll main-body part 24, the 1st roll main-body part 23, the 1st The two roll main body portions 24 and the first roll main body portion 23 are arranged in this order.
Since the outer diameter of the cylindrical surface of the second roll main body 24 is larger than the outer diameter of the cylindrical surface of the first roll main body 22, 23, the anvil roll 20 is assembled in a usable form. In the state, the cylindrical surface of the second roll body 24 is slightly protruded.

FIG. 5 is a schematic cross-sectional view showing the relationship between the cutting blades 10a and 10b, the first roll body portions 22 and 23, and the second roll body portion 24 at the contact position.
The cylindrical surface of the second roll body 24 faces the cutting blade 10b that cuts the full cut lines L1 and L2 in FIG. The cutting blade 10b is in contact with the cylindrical surface of the second roll main body 24, and performs a full cut of the medium P to be cut along the full cut lines L1 and L2.

  On the other hand, the cylindrical surfaces of the first roll body portions 22 and 23 face the cutting blade 10a that cuts the half-cut lines L3, L4, and L5 in FIG. The protruding height of the cutting blade 10a is equivalent to that of the cutting blade 10b. However, since the cylindrical surface of the second roll main body 24 has a larger outer diameter than the cylindrical surface of the first roll main body 22, 23, the cutting blade 10 a is a cylinder of the first roll main body 22, 23. It does not reach the surface, and a gap is formed between the cutting blade 10a and the cylindrical surfaces of the first roll body portions 22 and 23. The to-be-cut medium P on the 1st roll main-body parts 22 and 23 exists in this clearance gap, and although the cutting blade 10a penetrates the base material P3 and reaches | attains to the adhesion layer P2, it reaches the mount P1. do not do. Therefore, the cutting blade 10a cuts only the base material P3 and the adhesive layer P2, and does not cut the mount P1, but can perform a half cut along the half cut lines L3, L4, and L5.

With the above-described configuration, the rotary die-cutting device 1 can realize die-cutting that can perform full-cutting and half-cutting simultaneously even when the cutting blades 10a and 10b have the same height.
Here, the cutting blades 10 a and 10 b of the present embodiment are formed to have higher wear resistance than the second roll body 24. Also in the rotary die cutting apparatus 1 of this embodiment, material wear occurs at the contact portion between the cutting blade 10b and the second roll main body 24 while performing long-term die cutting. However, since the cutting blade 10b has higher wear resistance than the second roll main body 24, the second roll main body 24 wears more. When the second roll body 24 is worn out and the cutting state deteriorates, the anvil roll 20 may be disassembled and only the second roll body 24 needs to be replaced. Can be recovered.

  As described above, according to the present embodiment, the anvil roll 20 of the rotary die cutting apparatus 1 includes the first roll main body portions 22 and 23 and the second roll main body portion 24 having different outer diameter dimensions of the cylindrical surface. It consists of separate parts and is formed by combining these. Therefore, even if the height of the cutting blades 10a and 10b is constant, the rotary die cutting apparatus 1 that can perform full cut and half cut simultaneously can be easily manufactured. In addition, since the first roll main body portions 22 and 23 and the second roll main body portion 24 are composed of separate parts, part replacement is easy, and adjustment according to the cutting state is easy. Yes. In particular, since the cutting blades 10a and 10b are formed to have higher wear resistance than the second roll body 24, the cutting state is maintained in a good state by simply replacing the second roll body 24. it can.

(Deformation)
The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the scope of the present invention.

  In the embodiment, the first roll main body portions 22 and 23 having the same width and the second roll main body portion 24 having the same width are used in combination. For example, a plurality of first roll main bodies having different widths or a plurality of second roll main bodies having different widths may be provided in accordance with a desired cutting shape.

  The present invention is not limited to the embodiments described above.

DESCRIPTION OF SYMBOLS 1 Rotary die-cutting apparatus 10 Die-cut roll 10a, 10b Cutting blade 20 Anvil roll 21 Central axis 21a Key groove 22 First roll main-body part 22a Hole part 22b Pin hole 22c Key groove 23 First roll main-body part 23a Hole part 23b Pin hole 24 Second roll body 24a Hole 24b Pin hole 25 Pin 26 Key L1 Full cut line L2 Full cut line L3 Half cut line L4 Half cut line L5 Half cut line P Media to be cut P1 Mount P2 Adhesive layer P3 Base material

Claims (5)

An anvil roll used in a rotary die cutting device,
A central axis;
A first roll main body part that is a cylindrical member having a hole for making it detachable with respect to the central axis;
A second roll body, which is a columnar member having a hole for making it attachable to and detachable from the central axis, and whose outer diameter dimension of the cylindrical surface is larger than that of the first roll body. And
With
An anvil roll configured by combining the first roll main body and the second roll main body with respect to the central axis. The anvil roll according to claim 1,
A plurality of the first roll main body and the second roll main body are combined;
Anvil roll characterized by. In the anvil roll according to claim 1 or 2,
That at least one of the first roll body and the second roll body is a combination of a plurality of different widths,
Anvil roll characterized by. An anvil roll according to any one of claims 1 to 3,
A die-cut roll disposed opposite to the anvil roll;
With
The die cut roll has a cutting blade having a constant height,
The cutting blade performs a half cut without contacting the cylindrical surface of the first roll main body, and performs a full cut by contacting the cylindrical surface of the second roll main body;
A rotary die cutting device characterized by the above. In the rotary die-cutting device according to claim 4,
The cutting blade has higher wear resistance than the cylindrical surface of the second roll body,
A rotary die cutting device characterized by the above.

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