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Slitter device using rotating round blades, method of manufacturing sheet-like article

A technology of slitting shears and circular blades, which is applied in metal processing and other directions, can solve the problems of product value reduction, knife edge curling, substrate and adhesive layer detachment, etc., to achieve long working time, wear and roll Fewer blades and beautiful cutting surface

Active Publication Date: 2013-07-24
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such an application, for the case of cutting a composite sheet having at least one substrate sheet and at least one adhesive layer (for example, a polarizing plate made of a protective film through a polarizing film and an adhesive layer) with a desired width, forming The adhesive of the adhesive layer adheres to the surface of the cutter. Because the cutter itself has adhesive force, the base material and the adhesive layer are detached with the movement of the cutter, or the incision is skewed, and the adhesive is attached to the cut surface of the cut sheet. Disadvantages that reduce the value of goods
[0003] Although a method of covering the surface of the tool with fluororesin or the like has been disclosed in order to solve such inconvenience (refer to Patent Documents 1 and 2), since the slitting shear device using a rotating circular blade is made by placing the upper blade and the lower The blades are staggered to cut the sheet, so the covering resin may be peeled off due to the friction of the two blades and the covering effect may be lost, or the fluororesin peeled off by the blades may be mixed into the cut film as impurities, not necessarily A device that satisfies areas where there is a fear of contamination, such as optical applications
In addition, in the slitting shear device using a rotating circular blade, since the sheet is cut at the contact point of each outer circumference of the upper blade and the lower blade, the processing accuracy of the circular blade mounting part, the rotating part, etc. Due to the shaft runout and the machining accuracy of the circular blade, a large axial vibration is generated at the tip of the circular blade, which causes the tip of the blade to curl and wear seriously, and the result will be due to the short life of the circular blade. The replacement frequency of circular blades becomes faster, resulting in a decrease in operating rate
In addition, if the sharpness of the cutting edge is worn away, the cutting surface of the sheet will lose its sharpness, which will cause inconveniences such as a decrease in product value.

Method used

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  • Slitter device using rotating round blades, method of manufacturing sheet-like article
  • Slitter device using rotating round blades, method of manufacturing sheet-like article
  • Slitter device using rotating round blades, method of manufacturing sheet-like article

Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0052] Tool diameter: 98 mm in diameter, blade thickness: 2 mm, tip angle: 40°, HRC76 carbide circular blade (manufactured by Kyocera Co., Ltd., φ98×2T-FW35) was used as the upper blade 1, and the tool diameter: A high-speed steel blade (SKH51, manufactured by Toyo Knife Co., Ltd., 40° T) with a diameter of 98 mm, blade thickness: 2 mm, corner angle: 40°, and HRC64 was disposed as the lower blade 2 . The rotary circular blade has a toe-in angle of 0.5° and an overlap of 0.4mm. Using this slitting shear device, the optical sheet was run at a linear speed of 10 m / min and the cutter at a peripheral speed of 11 m / min. The tip runout (axial vibration) at this time was 10 μm for the upper blade and 9 μm for the lower blade. After the light sheet was slitting for 2500 m under this condition, the wear conditions of the curling edge and the edge of the upper blade and the lower blade were investigated with an optical microscope, but the wear of the edge curling and the edge of the bla...

experiment example 2

[0058] In Experimental Example 1, a circular insert made of zirconia (manufactured by Kyocera Co., Ltd.) with a tool diameter of 98 mm in diameter, a blade thickness of 2 mm, a corner angle of 40°, and HRC73 was used as the upper blade 1, and Experimental Example 1 was used. The same high-speed steel is used as the lower blade, and the other conditions are the same as in Experimental Example 1, and the slitting process is carried out. The tip runout (axial vibration) at this time was 8 μm for the upper blade and 9 μm for the lower blade. After the light sheet was slitting for 2500 m under this condition, the wear conditions of the curling edge and the edge of the upper blade and the lower blade were investigated with an optical microscope, but the wear of the edge curling and the edge of the blade was not observed. In addition, there is basically no overflow and adhesion of adhesive on the cut surface of the light sheet, which is more beautiful

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Abstract

A slitter device can provide a sheet-like article with a neat cut surface and causes less wear and chipping of blade edges to provide a cutting tool including the blades with a long service life. Specifically, to achieve the above, the slitter device uses round blades, or an upper blade and a lower blade having a difference in the hardness of approximately 10 or more in HRC. More specifically, for example, if one of the upper and lower blades is made of tool steel, the other is made of a superhard material or a ceramic material, and if one is made of a superhard material, the other is made of a ceramic material.

Description

technical field [0001] The present invention relates to a slitting shear device using rotating circular blades, a method of manufacturing a sheet using the device and a sheet obtained therefrom. Specifically, it relates to a slitting shear device having a long life of a rotating circular blade and a beautiful cut surface of a cut sheet, a method of manufacturing a sheet using the device, and a sheet obtained by the same. Background technique [0002] In the past, the long sheet rolled into a roll is automatically conveyed and inserted between a pair of rotating circular blades composed of a pair of upper blades and lower blades arranged with respect to the width direction perpendicular to the conveying direction to cut the sheet. A so-called slitting shear device that uses a rotating circular blade to form a desired width is often used for various paper products such as inkjet paper and copy paper, or pharmaceutical sheets such as gypsum sheets and pastes. , polarizing film...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26D1/24
CPCB26D1/0006B26D2001/002B26D2001/0066B26D2001/0046B26D7/2621
Inventor 森正春
Owner SUMITOMO CHEM CO LTD