JPH0443775Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is equipped with a slidable electric cutting tool that cuts the coating film into a conical shape until it reaches the coating film base material, and a scale that cuts the coating film after cutting. This invention relates to a rotary cutting type film thickness meter that measures the film thickness based on a known cone angle from the measured value of the radial dimension of the cut film by sliding a scale in position.

[Problems that conventional technology and ideas try to solve]

When cutting a flexible coating film 2 such as urethane or lacquer based on a resin surface 1 using this type of rotary cutting type film thickness meter, as shown in Figure 4a, the surrounding coating film may be rolled up. The cutting shape is no longer conical. Therefore, as shown in FIG. 4b, the measurement accuracy of the width dimension of the cut ring-shaped coating surface decreases, and the measurement accuracy of the converted film thickness also decreases.

Therefore, it is an object of the present invention to provide a rotary cutting type film thickness meter of the type mentioned at the beginning, which can cut even a flexible coating film into a conical shape.

[Means for solving problems]

In order to achieve this objective, the present invention is equipped with a cooling means for cooling the part to be cut by an electric cutting tool, and an actuating means for starting this cooling means and following the cooling means to cause the electric cutting tool to operate in conjunction with the cooling means. .

[Effect]

When the electric cutting tool of the rotary cutting type film thickness gauge is positioned above the coating film to be measured and the actuating means is activated, the cooling means solidifies the cooling-curable coating film to be cut, and then this solidification occurs. In this state, the electric cutting tool also operates in conjunction to perform cutting.

[Example of idea]

1 and 2 show a rotary cutting type film thickness meter according to an embodiment of the present invention. In the same figure, a blade 12 rotatably driven by a battery 13 and having a predetermined inclination angle is attached to a slider 6 slidably inserted by a flange 6a into a channel 7 formed on both sides of a case 5 placed on a coating film 2. Electric cutting tool 10 equipped with
A microscope 15 as a scale having graduations in the radial direction, and a cartridge type Freon cylinder 20 as a cooling means of the present invention are arranged in the sliding direction. The blade 12 can be raised and lowered by pressing the operation surface 10a, which is the upper surface of the electric cutting tool 10, and a limit switch 1 is mounted on the slider 6 on the opposite side below the operation surface 10a.
1 is disposed, and is actuated by lowering the actuating rod 11a. The amount of movement of the slider 6 is set to correspond to the distance between the center positions of the blade 12 and the microscope 15, so that when the microscope 15 is slid to its full slide width after cutting, it will come exactly to the cutting position. It's summery. Scale 15 of microscope 15
a is set so that the cosine dimension of the conical ring-shaped coating surface 2a (FIG. 3) can be converted into film thickness and directly read.

Liquefied Freon is press-fitted into the Freon cylinder 20, and the lower end is provided with a cap 22 which is biased downward by a spring and has a built-in valve. Projecting from this cap is a nozzle 21 that communicates with a valve opened by upward pressure and spouts vaporized Freon gas toward the cutting part. Furthermore, the Freon cylinder 20 is provided with a link that functions as an actuating means for the electric cutting tool 10 and the Freon cylinder 20, which is arranged in parallel by being composed of an L-shaped arm 26 and an arm 23 hinged at the lower end of the arm 26 with a pin 25. ing. The tip of the arm 23 comes into contact with the cap 22, and a guide pin 24 that engages in a horizontal long groove 5b formed in the case 5 is protruded from the center portion. The horizontal part 26a of the arm 26 functions as an operating lever, and the electric cutting tool 1
0 to a midway position above the operation surface 10a. Guide pins 26b are protruded from both sides of the arm 26 in the middle, and an inverted L-shaped cutout groove 5a is provided.
has been involved. The limit switch 11 and the actuating rod 11a are spaced apart from each other to such an extent that the limit switch 11 is turned on after the tip of the arm 23 contacts the cap 22 under pressure from the horizontal portion 26a to open the associated valve.

The operation of the rotary cutting type film thickness meter configured as described above is as follows.

At the time of measurement, the case 5 is placed on the coating film and the blade 12 is positioned above the cutting part. When the coating film is flexible, when the horizontal part 26a of the arm 26 is pressed, the blade 12 moves downward in conjunction with the movement, and the tip of the arm 23 rotates upward about the guide pin 24 to open the cap 22. Open the valve inside. As a result, vaporized Freon gas is ejected from the nozzle 21 to the cutting part, cooling and solidifying the coating film 2 in the vicinity, and when the horizontal part 26a is further pushed, the limit switch 11 is activated and the blade 12 starts rotating. It descends further and begins cutting. As a result, as shown in FIG. 3a, the coating film 2 is rapidly cooled and cut into a conical shape without involving the surroundings. Next, the slider 6 was slid to the left end as seen in the figure, and finely adjusted, and the scale 15a of the microscope 15 was converted into the film thickness in the radial direction of the ring-shaped coating surface 2a, as shown in FIG. 3b. Read the width dimension.

Incidentally, if the coating film 2 is made of a melamine-based material, which has a low tensile followability at room temperature and does not require cooling, the operation surface 10 can be removed from the gap in front of the horizontal portion 26a.
Press a to rotate the blade 12 without spouting Freon gas.

It should be noted that it is possible to use other than Freon gas as the cooling means mentioned above, and batteries 1 can also be used as the operating means.
Other structures are also conceivable, such as one in which the electric cutting tool 10 and Freon cylinder 20 are electrically actuated using 3.

[Effect of idea]

As described above, according to the present invention, even if the coating film is flexible, if it is solidified by cooling, the entrainment phenomenon of the surrounding coating film during rotary cutting can be eliminated. Thickness measurement becomes possible.

[Brief explanation of drawings]

FIG. 1 is a side view of a rotary cutting type film thickness meter according to an embodiment of the present invention, FIG. 2 is a top view thereof, FIG. Figure b is a diagram showing the measurement state of the cut coating film according to the same embodiment, Figure 4a is a sectional view showing the cutting state of the coating film by the conventional rotary cutting type film thickness meter, and Figure 4b is the measurement status. Figure shown. 5... Case, 10... Electric cutting tool, 11...
Limit switch, 12...Blade, 15...Microscope, 25...Pin, 23, 26...Arm.

Claims (1)

[Scope of utility model registration request] An electric cutting tool that cuts the paint film into a conical shape at a predetermined angle until it reaches the coated film base material, and a scale that measures the radial dimension of the cut ring-shaped paint film surface.
In a rotary cutting type film thickness meter that is slidably attached to a case that is placed on the coating film, and after cutting, the scale is slid to the cutting position and the film thickness is converted and measured according to the cone angle. 1. A rotary cutting type film thickness gage, characterized in that it is equipped with a cooling means for cooling a portion of the coating film to be coated, and an actuating means for starting the cooling means and operating an electric cutting tool accordingly.