JP2003011085A - Control method and measuring device of edge height of die cut roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the precise measuring of a level difference between a bearer part of a die cut roll and a whole cutting edge or a half cutting edge. SOLUTION: A micro meter head 50 is parallel moved to an axial line X-X of the die cut roll 10 and a measuring spindle tip 51a of the micro meter head is made to sequentially abut on tips of the bearer part 1, the whole cutting edge 2, and the half cutting edge 3 of the die cut roll surface so as to measure the level differences among the bearer part 1, the whole cutting edge 2, and the half cutting edge 3. The acceptance or rejection of the level differences is determined by whether or not the measured value of the level difference is within a tolerance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade height control method and a blade height measuring device for a die cut roll in a die cut roll device for cutting or half-cutting paper, film or the like.

[0002]

2. Description of the Related Art Conventionally, laser processing has been used for half-cutting paper, film and the like. To make a half cut by laser processing, that is, to make a shallow cut so that it can be cut to the middle of the thickness of paper, film, etc. and then easily cut by hand etc., the paper or film to be processed is multi-layered. A layer of a material which is easy to blow is cut by laser, and a layer of a material which is hard to blow is left.

The reason for using multiple layers of paper or film is that the half-cut depth cannot be finely adjusted only by adjusting the laser output and focus.

For example, when the label side of a sheet having a label sheet adhered to a release sheet is half-cut, it is necessary to make the release sheet and the label into two layers for the purpose of use, but it is not necessary to use multiple layers for the purpose. However, it is not preferable to use multiple layers for laser processing because it causes an increase in cost.

Half-cutting of paper or film by a die-cut roll can be used when the thickness is relatively large and a uniform and highly accurate cutting depth is not required.

As shown in FIG. 3, the die-cut roll 10 for half-cut is generally provided with a half-cut blade 3 having a height lower than that of the bearer 1 or the full-cut blade 2. Half-cutting is performed by the half-cut blade 3 with a paper or film sandwiched between it and the receiving roll.

However, if the step S between the bearer 1, the total cutting blade 2 and the half-cutting blade 3 is not an appropriate value, the half-cutting will be too shallow or too deep, and the cutting will start.
In order to perform half-cutting of thin paper or film, or high-precision half-cutting, the step S must be precisely managed according to the application. Further, the step between the bearer 1 and the whole cutting blade 2 is normally used as 0, but if this step also deviates from 0 by an allowable value or more, the wear of the cutting edge is abnormally accelerated or cutting is performed. It will cause defects.

However, precise measurement and management of these steps are not easy, and large-scale equipment is required, which makes practical application difficult.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and facilitates precise measurement of the step between the bearer and the full cutting edge or the half cutting edge with simple equipment, depending on the application. A blade height control method and a blade height measuring device for a die cut roll, which can perform half cutting or cutting with a precise depth by using a die cut roll having an optimum step.

[0010]

In order to solve the above-mentioned problems, the method for controlling the height of a die-cut roll according to the present invention is to move a micrometer head in parallel with the axis of the die-cut roll to obtain the surface of the die-cut roll. Of at least the bearer portion and the tip of the full cutting blade or the half-cut blade, the measurement spindle tip of the micrometer head is sequentially abutted to measure the step between the bearer portion and the full-cut blade or the half-cut blade. It is characterized in that the pass / fail of the step is determined by whether or not is within the allowable range.

The blade height measuring device for a die-cut roll of the present invention comprises a linear guide rail laid parallel to the axis of the die-cut roll, and a slide block movable on the linear guide rail parallel to the axis of the die-cut roll. , Fixed to this slide block, the tip of the measuring spindle is opposed to the surface of the die-cut roll, the slide block is moved, and the tip of the measuring spindle is at least on the bearer part of the die-cut roll surface and the tip of the full cutting blade or the half-cut blade. And a micrometer head adapted to measure the level difference between the bearer portion and the full cutting blade or the half cutting blade by sequentially contacting each other.

In the above blade height measuring device, the tip of the measuring spindle may be made of a resin piece, or the micrometer head may be a digital display type micrometer head to directly display the step.

According to the present invention, the blade height of the die-cut roll can be easily measured even when it is set on the die-cut roll.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.
A description will be given with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of an apparatus for measuring the level difference between a full-cutting blade and a half-cutting blade of a die-cut roll according to the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG. 3 is a partially enlarged sectional view of the surface of the die-cut roll.

In FIG. 1, the die-cut roll 10 is
Bearings 21 and 22 of the die-cut roll device frame 20
Both ends of which are rotatably supported and connected to a drive device (not shown).

As shown in FIG. 3, the surface of the die-cut roll (cylindrical surface) has cylindrical bearer portions 1 on both sides,
1 is formed, and in the middle thereof is a slightly concave cylindrical surface 4, and a full cutting blade 2 and a half cutting blade 3 are formed on the surface of this cylindrical surface 4. The full cutting blade 2 is a blade for cutting paper or film, and has the same height as the bearer portions 1, 1. The half-cutting blade 3 is a blade for half-cutting, and is lower than the bearer portions 1, 1 and the full-cutting blade 2 by S (about 0.01 mm).

As shown in FIG. 2, a receiving roll 30 is provided below the die cutting roll 10, and the receiving roll 30 is supported by bearings on the die cutting roll device frame 20 in parallel with the die cutting roll 10. It is connected to the above-mentioned driving device and is adapted to rotate in the opposite direction to the die-cut roll 10.

The die-cut roll 10 and the receiving roll 30, which rotate in opposite directions, wind paper or film between them, and the full-cutting blade 2 and the half-cutting blade 3 provided in the die-cut roll 10 cut the paper or film into full cuts. And half-cut processing is applied. During processing, the die-cut roll 10 and the receiving roll 30 bring the bearers on both sides thereof into contact with each other to control the depth of cut of the full-cut blade 2 and the half-cut blade 3 into paper or film. ing.

On the front surface of the die-cut roll device frame 20, a linear guide rail 40 is laid parallel to the axis X-X of the die-cut roll 10 and fixed by screws or the like. A slide block 41 is movably mounted on the linear guide rail 40 in parallel with the axis line XX of the die-cut roll. The movement of the slide block 41 is very smooth, stable against a load from the outside, and moves in parallel with the axis line XX of the die-cut roll 10 with an accuracy of 0.001 mm or less.

A micrometer head 50 is fixed to the slide block 41. In this micrometer head 50, the tip 51a of the measuring spindle 51 is opposed to the surface of the die-cut roll 10 and the slide block 41 is moved so that the bearer portion 1, the full-cutting blade 2 and the half-cutting blade 3 on the surface of the die-cut roll 3 are moved. The tip of the measuring spindle 51a is sequentially brought into contact with the tip to measure the level difference of the bearer portion 1, the full cutting blade 2 and the half cutting blade 3.

In this embodiment, a resin piece is attached to the tip 51a of the measuring spindle of the micrometer head 50, and when the measuring spindle 51 contacts the blades 2 and 3 of the die-cut roll 10, the resin piece is bladed. The blade is not damaged when hitting.

The micrometer head 50 used in this embodiment is a digital display type micrometer head, in which the measured value is digitally displayed on the display panel 52, and the reset operation is performed at an arbitrary entry / exit position of the spindle 51. , "0" can be displayed. Therefore, for example, if the display when the measurement spindle tip 51a is applied to the full cutting edge 2 is "0", the value displayed when the measurement spindle tip 51a is applied to the half-cut blade 3 is the total cutting edge 2 The difference between the blade edge of the micro-cut blade 3 and the blade edge of the half-cut blade 3 is shown.
The measured step is directly displayed on the display panel 52 of FIG.

Incidentally, 53 is a micrometer head 50.
The thimble 54 is a ratchet knob.

Next, step measurement will be described in sequence. When measuring the level difference between the bearer portion 1, the full cutting blade 2 and the half cutting blade 3 of the die-cut roll 10 with the micrometer head 50, the rotation of the die-cut roll 10 and the receiving roll 30 is stopped, and the bearer portion of the die-cut roll 10 is stopped. 1 and the bearer portion of the receiving roll 30 are slightly separated. The die-cut roll 10 is supported at regular positions by bearings 21 and 22 so that the radial direction of the die-cut roll 10 is aligned with the axis of the measuring spindle 51 on the micrometer head 50.

First, the surface of the bearer unit 1 is set as a reference. That is, the axis line XX of the die-cut roll 10
The micrometer head 50 is moved in parallel with and positioned in front of the bearer unit 1, and the thimble 53 of the micrometer head 50 is rotated to bring the measuring spindle 51a into contact with the bearer unit 1 on the surface of the die-cut roll.
Reset the value displayed in 2 to "0". This operation is performed on both the left and right bearer units 1 and 1, and it is confirmed that there is no step on the left and right bearer units 1 and 1.

Next, the tips of all the cutting blades 2 are measured. That is, the micrometer head 50 is moved again parallel to the axis line XX of the die-cut roll 10 to be positioned in front of the entire cutting blade 2, and the thimble 5 of the micrometer head 50 is moved.
3 is turned and the measuring spindle 51a is applied to all the cutting blades 2 on the surface of the die-cut roll. The numerical value displayed on the display panel 52 at this time is the step with the bearer unit 1. Since the target value of the level difference between all the cutting edges 2 and the bearer portion 1 is “0”, the level difference of all the cutting edges 2 is acceptable if it is “0 ± allowable value”.

Then, the step difference of the half-cut blade 3 is measured. That is, the micrometer head 50 is further moved in parallel with the axis line XX of the die-cut roll 10 to be positioned in front of the half-cut blade 3, and the micrometer head 50 is moved.
The thimble 53 is rotated to bring the measuring spindle 51a into contact with the half-cut blade 3 on the surface of the die-cut roll. The numerical value displayed on the display panel 52 at this time is the bearer unit 1,
It is a step with the total cutting blade 2. If the step difference between the half-cut blade 3 and the bearer portion 1 and the full-cut blade 2 is the “target value ± permissible value”, the step difference of the half-cut blade 3 is acceptable.

As a precaution, the die-cut roll 10 is manually rotated to turn the bearer portion 1, the full-cutting blade 2 and the half-cutting blade 3 together.
Is preferably measured, and the “vibration” is also measured.
This is because if the "runout" is large, it directly affects the processing accuracy.

In this way, all the cutting blades 2 and the half-cutting blades 3 of the die-cut roll 10 are measured, and if they are within the allowable range, the cutting and the half-cutting work can be started with the set. If it is not within the allowable range, the die cut roll 10 is remolded.

In the present invention, as described above,
Since the step between the bearer part of the die-cut roll and the full-cutting blade or the half-cutting blade can be easily and precisely controlled, the paper to be processed, the thickness of the film, etc., the material, etc.
A die-cut roll with an appropriate step can be selected and used.

In the above-described embodiment, the case where the cutting and the half-cutting are performed in one step has been described. However, the present invention does not perform the cutting but only the half-cutting or the cutting only. It can be carried out. Also, by changing the surface shape of the receiving roll,
It is also possible to make intermittent half cuts or cuts, or to make the shape of the full-cutting blades or half-cutting blades on the surface of the die-cut roll into a curved shape such as a circle, and perform the curved cutting or half-cutting.

Further, in the above-mentioned embodiment, an example of measuring with the die-cut roll set on the die-cut roll device has been described, but the measurement may be performed with a dedicated measuring table.

In the half-cutting by the die-cut roll of the present invention, it is not necessary to make the paper or film to be half-cut into multiple layers unlike the half-cutting by the laser.

[0035]

As described above in detail, according to the present invention, the micrometer head is moved in parallel with the axis of the die-cut roll, and at least the bearer portion and the full-cut blade or the half-cut blade on the surface of the die-cut roll are moved. Since the tip of the measuring spindle of the micrometer head is brought into contact with the tip of the above in order to measure the step between the bearer part and the full cutting edge or half cutting edge, the height of the full cutting edge or half cutting edge is suitable. Whether it is a value or not can be confirmed easily and accurately, and precise half-cutting and cutting can be realized by a die-cut roll that is cheaper than a laser.

Moreover, since half-cutting is performed by the die-cut roll, like half-cutting by a laser,
There is no need to make half cut paper or film into multiple layers, and the cost of half cut products is also greatly reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a partially enlarged sectional view of the surface of a die-cut roll.

[Explanation of symbols]

1 Bearer section 2 All cutting blades 3 Half-cut blade 4 Cylindrical surface 10 Die-cut roll 20 Die-cut roll device frame 21, 22 Bearing part 30 receiving roll 40 Linear guide rail 41 slide block 50 micrometer head 51 Measuring spindle 51a Measuring spindle tip 52 display panel

Claims (4)

[Claims] 1. A micrometer head is moved parallel to the axis of a die-cut roll, and at least the bearer portion of the surface of the die-cut roll and the tip of a full-cut blade or a half-cut blade are sequentially connected to the tip of a measurement spindle of the micrometer head. The height of the die-cut roll is characterized by measuring the step between the bearer part and the full cutting edge or the half-cutting edge in contact with each other, and determining whether the step is acceptable or not based on whether the step measurement value is within the allowable range. Management method. 2. A linear guide rail laid parallel to the axis of the die-cut roll, a slide block movable on the linear guide rail parallel to the axis of the die-cut roll, and a surface of the die-cut roll fixed to the slide block. The tip of the measuring spindle is opposed to, the slide block is moved, and at least the bearer portion of the die-cut roll surface and the tip of the full-cutting blade or the half-cutting blade are sequentially brought into contact with the tip of the measuring spindle, and the bearer portion and the full-cutting blade or A blade height measuring device for a die-cut roll, comprising: a micrometer head adapted to measure a step with a half-cut blade. 3. The blade height measuring device for a die-cut roll according to claim 2, wherein the tip of the measuring spindle is a resin piece. 4. The blade height measuring device for a die-cut roll according to claim 2, wherein the micrometer head is a digital display type micrometer head, and the step is directly displayed.