JPH01304906A - Green sheet cutter - Google Patents

Abstract

PURPOSE:To perform the sure and efficient inspection of a green sheet by a structure wherein a transparent plate is provided at an opening part, which is formed at the upper part of a pedestal and, at the same time, light source is fixed just below the transparent plate. CONSTITUTION:At a green sheet cutter, a lower blade 2 is provided at one side of an upper part 11 and the tip part 51 of a rolled green sheet 5 is placed onto the top surface of the upper part 11 so as to intersect the lower blade 2. An anchoring part 13 is made by removing the portion, excluding the outer peripheral part, of the upper part 11 of a pedestal 1. A glass plate 6 is placed to the anchoring part 13 so as to position to said cut-away portion. Further, fluorescent lamps 71 and 72 are fixed to the leg parts, which are opposite to each other, of the pedestal 1 so as to position just below the glass plate 6. Accordingly, since the lights from the fluorescent lamps pass through the glass plate 6 and the tip part 51 of the green sheet 5, the sheet 5 can be efficiently inspected.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a green sheet cutting machine that includes a pedestal and a cutter that is installed at the upper part of one side of the pedestal and cuts the green sheet placed on the pedestal. Regarding.

[Conventional technology]

Conventionally, this type of green sheet cutting machine is
As shown in the figure, a lower blade 2 is mainly provided on one side of the upper part 11, and a rolled green sheet 5 is provided on the upper surface of the upper part 11.
Tip of 5. a metal pedestal 1 having a U-shaped cross section, on which the blade is placed so as to intersect with the lower blade 2; - a blade portion similar to the blade portion of the lower blade 2 on the outer periphery; and a grip portion at one end; 31 is formed, and by rotating the other end by a predetermined angle using the other end as a fulcrum, the support member 4 is attached to the base 1 in a positional relationship such that the green sheet 5 is cut in the direction of the arrow X by the shearing action with the lower blade 2. and an upper blade 3 whose other end is fixed through a green sheet 5. The green sheet 5 has a tip portion 5.
was cut in the width direction (direction of arrow X) by an operator after undergoing a simple visual inspection for defects such as pinholes, poor film thickness, wrinkles, and cracks.

[X that the invention attempts to solve! Title]

The conventional green sheet cutting machine described above mainly consists of a metal pedestal and an upper blade, and the tip of the green sheet placed on the top of the pedestal is cut by the operator into pinholes, etc. After undergoing a simple visual inspection for defects such as poor film thickness, wrinkles, and cracks, it was cut in the width direction.
It is difficult to detect the above-mentioned defects using the reflected light of normal lighting, and there are many cases of inspection errors where operators judge the tip to be a good product even though the tip is defective.

[Means to solve the problem]

In the green sheet cutting machine of the present invention, an opening is formed in the upper part of a pedestal, a transparent plate is provided in the opening, and the light source is fixed to the pedestal so as to be located directly below the transparent plate.

[Effect]

When the tip of the rolled green sheet is placed on a transparent plate,
Since light passes through the leading edge of the transparent plate and green sheet, it is easier for operators to discover defects such as pinholes, poor film thickness, wrinkles, and cracks at the leading edge, eliminating inspection misidentifications and improving roll quality. It is possible to efficiently obtain only good products from green sheets.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of an embodiment of the green sheet cutting machine of the present invention, showing a state in which the tip end 51 of a roll-shaped green sheet 5 is placed on a glass plate 6, and FIG. 2 is a top view showing a state in which the green sheet 5 is cut in the width direction (direction of arrow X) by the shearing action of the upper blade 3 and the lower blade 2. FIG.

This green sheet cutting machine differs from the conventional example shown in FIGS. 3 and 4 in that the upper part 11 of the pedestal 1 is cut off except for the outer periphery to form a locking part 12, and the glass plate is 6 is placed on the locking part 1□ so as to be located on the cut out part, and fluorescent lights 7, . 7. Place the pedestal 1 so that its longitudinal direction coincides with the arrow X direction and is located directly below the glass plate 1.
It is fixed to the opposite legs of the.

Therefore, fluorescence fi7. ,7□The light from glass plate 6
and passes through the tip 5I of the green sheet 5, so
The tip portion 5. Defects such as pinholes, poor film thickness, wrinkles, cracks, etc. can be easily discovered, inspection errors are eliminated, and only non-defective products can be efficiently obtained from the rolled green sheet 5.

〔Effect of the invention〕

As explained above, the present invention forms an opening in the upper part of the pedestal, provides a transparent plate in the opening, and fixes the light source to the pedestal so as to be located directly below the transparent plate, so that the light source can be isolated from the light source. The light passes through the leading edge of the transparent plate and green sheet, making it easier for operators to discover defects such as pinholes, poor film thickness, wrinkles, and cracks at the leading edge, eliminating inspection errors. Only good products can be efficiently obtained from rolled green sheets, and reliability and inspection workability are improved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of the green sheet cutting machine of the present invention, showing the leading end portion 5 of a roll-shaped green sheet 5. 2 is a top view of FIG. 1, in which the green sheet 5 is moved in the width direction (direction of the arrow X) due to the shearing action of the upper blade 3 and the lower blade 2. FIG. 3 is a sectional view of the conventional example, and FIG. In the top view of the figure, upper blade 3
3 is a diagram showing a state in which the green sheet 5 is cut in the width direction by the shearing action between the lower blade 2 and the lower blade 2. FIG. 1...Pedestal, 1. ...Top, 12...
・Locking part, 2...Lower blade, 3...Upper blade,
31...Grip part, 4...Support member,
5... Green sheet, 5... Tip part,
6...Glass plate, 71.7°...Fluorescent light.

Claims (1)

[Claims] 1. A green sheet cutting machine including a pedestal and a cutter installed at the top of one side of the pedestal to cut the green sheet placed on the pedestal, wherein an opening is provided at the top of the pedestal. A green sheet cutting machine characterized in that a transparent plate is provided in the opening, and a light source is fixed to the pedestal so as to be located directly below the transparent plate.