JPH10153401A - Belt width measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To directly measure the upper width of a belt having any sectional form in a short time, and give an alarm to an out-of-specification product by providing replaceable fixed piece and movable piece, and processing the measured value as digital value. SOLUTION: The measuring part 3 of the belt width measuring means 1 consists of a fixed piece 4 and a movable piece 5 sliding on a body 2. Their measuring surfaces 6 have an inclination according to the sectional form of a belt to be measured, and the belt is nipped between the measuring surfaces 6 to measure the belt width. The fixed piece 4 and the movable piece 5 are replaceable to ones conformed to the sectional form of the belt to be measured. For example, the fixed piece 4 and the movable piece 5 are fixed to the body through a magnet. The measured value is calibrated according to the belt kind, and display onto a liquid crystal display panel 11 and various statistical arithmetic processings are performed. When the value after calibration is out of a set range preliminarily inputted to a microcomputer 12, an alarming device 13 gives an alarm by sound or light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring the width of a belt, and more particularly to an apparatus for measuring the width of a belt having various cross-sectional shapes.

[0002]

2. Description of the Related Art Recently, there are various cross-sectional shapes of a belt depending on the application. In some cases, the cross-sectional shape is a parallelogram, and the belt having a V-shape only in the lower 1/3 is also used. Has appeared. When measuring the width of a belt whose cross-sectional shape is a parallelogram, when using a caliper whose measurement surface is perpendicular to the main body, the distance between the vertices of the parallelogram will be measured, and the exact belt width will be Could not measure.
When measuring the upper width of a belt in which approximately one third of the lower side of the belt cross section is V-shaped as the boring pin transport belt shown in FIG. 7, after cutting the lower side into a V-shape, the height of the V-shaped portion is measured. The length h, the belt thickness t, and the width W of the belt were measured with a gold scale, and the temporary upper width was calculated. The temporary upper width of the belt is the dimension of a in the figure, and is the distance between the intersection of the extended line of the V-shaped oblique line and the upper side. As an inspection, one belt was destroyed, the belt was traced with a projector, the belt was copied on trace paper, the temporary upper width was measured, and the temporary upper width was calculated by dividing by the projector magnification. Was. For other belts, the height of the V-shaped portion was measured with a gold scale, and the temporary upper width was calculated.

[0003] The above method has the following problems. It takes a long time to check the first product. Since the upper width of the belt could not be measured on the spot, there was a possibility that defective products would flow to the next process. In order to calculate the upper width from the projector, the inspection was a destructive inspection, and all the belts to be shipped could not be inspected even if the sampling inspection failed. To calculate the upper width of the belt, the belt thickness, width, V
It was necessary to measure the height of the shape part and the V angle of the V shape part, which required a lot of man-hours

[0004] Further, since the data of the belt width is calculated and recorded one by one, individual data is input to the microcomputer and statistical calculation is performed. Therefore, one person who inputs the data is required. there were. Also, in the present situation, when measuring the belt width, there is a risk of outflow of defective products due to misreading of data because the numerical values are visually checked and compared with standard values.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to directly measure the upper width of a belt having any cross-sectional shape in a short time, and if the measured data is out of the standard. For example, it is an object of the present invention to provide a belt width measuring device capable of issuing a warning and detecting a defective product immediately.

[0005]

That is, a feature of the present invention that conforms to the above-mentioned invention is that an apparatus for measuring the width of a belt includes:
The shape is a vernier caliper and consists of a main body and a measuring section. The belt width measuring device has a belt width measuring means having a different shape, facing each other and being exchangeable with each other. In the invention according to claim 1, the measurement surface in the measurement unit is composed of a fixed piece and a movable piece having a shape corresponding to the cross-sectional shape of the belt to be measured, and since the fixed piece and the movable piece are replaceable, There is an effect that the upper width can be measured directly in a short time regardless of the belt shape of any cross section.

The present invention also provides a belt width measuring means for sandwiching a belt between measuring surfaces, a means for inputting a measured value measured by the measuring means as a digital value, and a means for calibrating the measured value according to the type of belt. Means for comparing the calibrated measured value with a preset numerical range, means for issuing a warning when the calibrated measured value is out of the range of the numerical value to be compared, and means for storing the calibrated measured value. , A belt width measuring device having means for performing statistical calculation processing is also included.

In the invention according to claim 2, the measured value measured by the belt width measuring means is inputted as a digital value, the measured value is calibrated according to the type of the measured belt, and the calibrated measured value is set in advance. If the measured value that is compared and calibrated using the means for comparing with a numerical value is out of the set numerical value range, the warning is issued by the means for issuing a warning, and the measured value is immediately out of order. I understand. Further, the measured values can be pooled by means for storing the calibrated measured values and performing a statistical calculation process, and quality control of the belt width can be performed over a long period of time.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing one example of a belt width measuring means in the belt width measuring device of the present invention. The belt width measuring means 1 has a vernier caliper shape and includes a main body 2 and a measuring section 3. The measuring part 3 is a fixed piece 4
And the movable piece 5. The movable piece 5 can slide on the main body 2. Here, the measuring surface 6 of the fixed piece 4 and the movable piece 5 has an inclination corresponding to the cross-sectional shape of the belt to be measured. And the belt, and measure the belt width.

The fixed piece 4 and the movable piece 5 of the measuring section 3 can be exchanged. For example, as shown in FIG.
When measuring a belt having a V-shaped cross-section, the fixed piece 4 and the movable piece 5 can be replaced with a belt having a measurement surface that matches the belt cross-sectional shape. Here, when replacing the fixed piece 4 and the movable piece 5 with other shapes, a magnet 16 is installed on the main body 2 or the measuring unit 3 side as shown in FIG. Piece 5
Is fixed to the main body via a magnet. Here, a concave portion 17 that matches the shape of the magnet 16 is provided on the side where the magnet is not installed. Further, at least the material on the side provided with the concave portion needs to be iron or an iron alloy.

Next, when measuring the belt width, as shown in FIG. 4, a fixed piece 4 and a movable piece 5 having a measurement surface matching the sectional shape of the belt 14 are selected and fixed to the main body 2 via a magnet. I do. Then, the belt is sandwiched between the measurement surfaces 6 of the fixed piece 4 and the movable piece 5 to measure the belt width.

Next, the system of the belt width measuring device of the present invention will be described. FIG. 2 is an overall view of the belt width measuring device of the present invention. FIG. 8 is a diagram showing a system flowchart of the belt width measuring device of the present invention. First, the belt width measuring device 1, the microcomputer 12,
The power of the warning generator 13 is turned on (step S1). Therefore, software in which a program is assembled in advance is placed in the microcomputer 12. Then, data of the number of belt width inspections, numerical range data to be compared with the measured value, and a correction value for calibrating the measured value are input. The CPU in the figure is the microcomputer 12 (steps S2, S3, S4). Here, if calibration is required, the belt cross-sectional shape is special, such as when measuring the temporary upper width, and if actual measurement is not possible, substitute the correction value based on the measured value and calculate Must be a calibration value. If calibration is not particularly necessary, the correction value is set to 0.

After inputting necessary numerical values to the microcomputer 12, an actual measurement is performed. As described above, the measurement is performed by sandwiching the belt between the fixed surface 4 of the belt width measuring means 1 and the measurement surface 6 of the movable surface 5 as described above (step S5). First, the first measurement is performed for n = 1 (step S
6), the measured value is input (step S7). Next, calibration is performed in the microcomputer 7 (step S
8). Here, whether the correction method adds or subtracts the correction value to the measured value can be changed depending on the belt cross-sectional shape. For example, when a belt as shown in FIG. 7 is measured, b is measured as a measured value, so that the correction value C
As a result, the design value of b is subtracted from the design value of a, and the provisional upper width a obtained by adding C to the measured value is obtained.

Next, the calibrated data is displayed on the liquid crystal display panel 11 (step S9), and the calibrated data is compared with a previously input numerical range in the microcomputer (step S10). For example, the numerical range is initially set as A = 5, B = 7, and if the data y after calibration is y = 4, the data after calibration will be out of the numerical range, and the microcomputer 12 An electric signal is sent to the connected warning generator 13 (step S11). If the calibrated data y is within the above numerical range, it is not output to the warning means. Normally, a standard value of the belt width is initially input as the numerical value range. Next, upon receiving the signal, the warning generator 13 issues a warning. Warnings include sound, light, vibration, etc.
These can be used properly according to the working environment. At this time, when a warning is felt, the operator instantly knows that the belt is defective, and can prevent a risk of erroneously reading a defective product as a non-defective product due to erroneous reading of data.

Next, whether the calibrated data is within or outside the above numerical range, the microcomputer 12
Is stored in a data storage unit (not shown) (step S12). Then, it is determined in the microcomputer 12 whether the number of times of measurement has become equal to the initially set N (step S13). If the number of times has not reached N, an operation to increase the number of times of measurement by one is performed (step S14). Move on to the next belt measurement. Then, when the number of inspections set first is reached, the process proceeds to various statistical calculation processes (step S15).
Here, as the statistical calculation processing, data average value, standard deviation, difference between maximum value and minimum value, defect rate, process capability index, and the like are calculated. The program can be rearranged. Also, these calculation results can be used as a control chart or the like, which can be printed as a table or a graph by connecting a printer (not shown) to the microcomputer 12.

[0015]

As described above, according to the first aspect of the present invention, the measuring piece in the measuring section is composed of a fixed piece and a movable piece having a shape corresponding to the cross-sectional shape of the belt to be measured. Since the fixed piece and the movable piece are replaceable, the upper width can be measured directly in a short time, regardless of the belt shape, regardless of the cross-sectional shape.

According to a second aspect of the present invention, in addition to the effect of the first aspect, a measured value measured by the belt width measuring means is converted into a digital value, and the measured value is calibrated by the type of the measured belt. Then, the calibrated measurement value is compared with a preset numerical range using a means for comparing, and when the calibrated measurement value is out of the set numerical range, a warning is issued by a warning means, so that an immediate warning is issued. Bad belt can be found. In addition, since the work of inputting the measured data to the microcomputer becomes unnecessary, it is effective for labor saving. Further, by storing the calibrated measured values and performing a statistical operation, the measured values can be pooled and quality control relating to the belt width can be performed over a long period of time.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a belt width measuring means of the belt width measuring device of the present invention.

FIG. 2 is an overall view of a belt width measuring device according to the present invention.

FIG. 3 is a diagram in which a measuring unit is changed by a belt width measuring unit.

FIG. 4 is a diagram in which a belt width is measured by a belt width measuring unit.

FIG. 5 is a diagram in which a measuring unit is replaced by a belt width measuring unit.

FIG. 6 is a diagram in which a belt width of another shape is measured by a belt width measuring unit.

FIG. 7 is an example of a cross-sectional shape of a belt measured by the belt width measuring device of the present invention.

FIG. 8 is a system flowchart of the belt width measuring device of the present invention.

[Explanation of symbols]

 1 Belt width measuring means 2 Main body 3 Measuring section 4 Fixed piece 5 Movable piece 6 Measurement surface 7 Vernier scale 8 Main scale scale 11 Liquid crystal panel 12 Microcomputer 13 Warning generator 14 Belt 15 Belt 16 Magnet

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahisa Fujita 4-1-1-21 Hamazoedori, Nagata-ku, Kobe Mitsuhoshi Belt Co., Ltd.

Claims (2)

[Claims] 1. An apparatus for measuring the width of a belt, comprising a vernier caliper having a main body and a measuring section, the measuring section comprising a fixed piece and a movable piece sliding on the main body. The measurement surface of the piece has a shape that matches the cross-sectional shape of the belt to be measured, faces each other, and
A belt width measuring device comprising a belt width measuring means, wherein both of them can be replaced. 2. A belt width measuring means for sandwiching a belt between measurement surfaces, a means for inputting a measured value measured by the measuring means as a digital numerical value, a means for calibrating the measured value according to a belt type, Means for displaying the measured value obtained by the calibration, means for comparing the calibrated measured value with a preset numerical range, means for issuing a warning when the calibrated measured value is out of the numerical range to be compared, and means for calibrating the measured value. 2. The belt width measuring device according to claim 1, further comprising: means for storing the measured value; and means for performing a statistical operation of the stored measured value.