JPH0542535Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a portable sheet counter that measures the number of sheet materials such as stacked steel plates.

(Prior art) In general, sheet materials such as hot rolled steel plates are stacked in stacks (lot configuration) after shearing is completed, but after being stacked, they are re-stacked by re-inspection such as sampling inspection. , and in equipment without a counter, the number of steel plates after re-stacking is measured.

(Problems to be Solved by the Invention) However, there is currently no device for measuring the number of sheets, and the measurement is actually done manually. Therefore, since the measurement is performed manually, not only measurement errors occur but also the measurement takes a long time. Furthermore, when the work of dividing (splitting) boards after stacking occurs, a measuring staff manually counts each board one by one, but errors sometimes occur in this counting. and,
Such a mistake in measuring the number of sheets will result in a "shortage" error when shipped as a product, which will develop into a serious trust issue for users, and will no longer be just a temporary cream. On the other hand, if there is attached equipment such as a re-piler, the number of sheets after stacking can be re-measured using permanently installed sensors such as optical or eddy current type, but providing such equipment requires a huge amount of equipment cost. This is uneconomical.

This invention was developed to solve the above problems, and is a portable device that can easily and easily measure the number of sheets such as stacked steel plates in a short time. The purpose is to provide a seat counter.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an edge detection sensor that is provided movably in the stacking direction along the end surface of the sheet material and detects the state of the end surface of the sheet material. Then, the movement detection sensor detects the travel distance or travel time of this edge detection sensor, and each interval of each sealing material is determined by receiving the output signal of the edge detection sensor. A frequency processing circuit that detects the interval, and an arithmetic processing circuit that calculates the number of sealants by dividing the moving distance of the edge detection sensor detected by the movement detection sensor by the interval between each sealant detected by the frequency processing means. It is a portable seat counter equipped with

(Function) By providing such a means, the state of the end face of the stacked sheet materials is detected by the edge detection sensor, and the movement distance etc. of the edge detection sensor at this time is detected by the movement detection sensor.

Then, in response to the output signal of the edge detection sensor, each interval between each sealing material is determined, and among these intervals, the interval between each sealing material with the highest frequency is detected by a frequency processing circuit, and then a movement detection sensor is detected in an arithmetic processing circuit. The number of sealants is determined by dividing the moving distance of the edge detection sensor detected by the frequency processing means by the interval between each sealant detected by the frequency processing means.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an overall configuration diagram of a basic portable sheet counter according to the present invention. In FIG. 1, a slide block 2 is arranged to be slidable along a reference bar 1 having a sliding slit hole 1a in the longitudinal direction and serving as a reference for sliding. This slide block 2 includes a handle 3 that is operated by a measurement person to move the slide block 2, an edge detection sensor 4 that detects the end surface condition of a steel plate that is a sheet material, a pointer 5, and a slide block 2 that is an edge detection sensor. Position detection sensor 6 as a movement detection sensor that detects the movement distance (position) of sensor 4
and. Here, edge detection sensor 4
For example, a sensor that detects uneven displacement of the end face of a steel plate, or an eddy current type sensor, an electrostatic type sensor, or the like that detects an extremely small gap between steel plates is used.

Furthermore, a rectangular base 8 is attached and fixed to the upper end surface of the reference bar 1 with two base fixing screws 11, and this base 8 has three screws for adjusting the parallelism with the steel plate that is the sheet material. There are 10. Furthermore, in order to facilitate setting on the steel plate at any location and to enable measurement in any method such as the usage methods shown in FIGS. 3a to 3d, the reference bar
On the side of the base 8 facing the steel plate, magnets 7 and 9 are provided at the positions shown, respectively. Note that FIGS. 3a to 3c show a rigid type, followed by a stand type, a hanger type, and a side holding type, and FIG. 3d shows a horizontal type. In the figure, 18 is a stacked steel plate.

On the other hand, one end of a sensor cable 12 is connected to the edge detection sensor 4 and the position detection sensor 6, and the other end of the cable is connected to a position detection amplifier 13, an edge detection amplifier 14, a signal controller 15,
and a portable case 17 housing the display 16.
Here, the position detection amplifier 13, the edge detection amplifier 14, the signal controller 15, and the display 16 are battery-driven so that measurements can be easily made at any location.

Next, FIG. 2 is a functional block diagram showing an example of the internal configuration of the signal controller 15. As shown in FIG. That is, the signal controller 15 includes an edge detection amplifier 14 that amplifies the output signal of the edge detection sensor 4.
a peak hold circuit 151 that inputs the output signal from the peak hold circuit 151; and an A/D conversion circuit 152 that performs A/D conversion (analog/digital conversion) and samples the output signal from the peak hold circuit 151.
, an A/D conversion circuit 153 that A/D converts and samples the output signal from the position detection amplifier 13 that amplifies the output signal of the position detection sensor 6;
The X-
A frequency processing circuit 155 performs statistical processing such as frequency processing of data stored in the X-axis memory of the Y memory 154, and the output from this frequency processing circuit 155 is used to store data in the X-axis memory of the X-Y memory 154. It consists of an arithmetic processing circuit 156 that calculates and outputs the number of steel plates by dividing the data, that is, the moving distance (position).

Next, the operation of the portable sheet counter configured as above will be explained using FIGS. 4a to 4g. Here, a case will be described as an example in which the measurement is performed using a hanger type as shown in FIG. 3b.

First, the measurement person takes the portable sheet counter to the location where the measurement target is located, and measures against the stacked steel plates 18 as shown in Figure 3b.
A magnet 9 provided on the base 8 is attracted and set. Next, in this state, the handle 3 of the slide block 2, which is slidably disposed along the reference bar 1, is operated to move the slide block 2 from the upper position to the lower position of the stacked steel plates 18 in the figure. . As a result, the state of the end face of the steel plate 18 is detected by the edge detection sensor 4, and
The moving distance (position) of the slide block 2, that is, the edge detection sensor 4, is detected by the position detection sensor 6. The output signals of the edge detection sensor 4 and position detection sensor 6 are introduced into the portable case 17 via the sensor cable 12. Then, in the edge detection amplifier 14 housed inside the portable case 17, the output signal of the edge detection sensor 4 is amplified to an appropriate magnitude, and the output signal as shown in FIG. 4a is input to the signal controller 15. Ru. In the signal controller 15, the output signal from the edge detection amplifier 14 is input to a peak hold circuit 151 to obtain a signal as shown in FIG. The signal is A/D converted and sampled at , and a signal as shown in FIG. 4c is obtained.

On the other hand, in the position detection amplifier 13 housed inside the portable case 17, the output signal of the position detection sensor 6 as shown in FIG. 4d is amplified to an appropriate size.
The signal is input to the signal controller 15. In the signal controller 15, the output signal from the position detection amplifier 13 is A/D converted and sampled by an A/D conversion circuit 153, and a signal as shown in FIG. 4e is obtained.

Next, in the X-Y memory 154, as shown in FIG. The output signals from the D conversion circuits 152 are respectively stored. In this case, if only such stored data is used, undetected portions shown by broken lines in FIG. 4b and f will occur, resulting in erroneous detection. Therefore, in this embodiment, the frequency processing circuit 1 of the next stage is
55, as shown in Figure 4g, the X-Y memory 154
By performing frequency processing (statistical processing) on the data X stored in the X-axis memory of intervals with many
Xa is detected.

Then, the data stored in the X-axis memory of the X-Y memory 154, that is, the moving distance (position) X, is divided (X/Xa) by the output Xa from the frequency processing circuit 155 in the arithmetic processing circuit 156. Therefore, even if the edge detection sensor 4 generates an undetected portion and erroneously detects it, the accurate measured number of steel plates 18 is digitally displayed on the display 16.

As described above, in the portable sheet counter of this embodiment, the number of stacked steel plates 18 can be measured without manual effort, so unlike manual measurement, not only does measurement error not occur, but also the number of stacked steel plates 18 is can be carried out in an extremely short period of time.

In particular, in response to the output signal of the edge detection sensor, each steel plate 1 of each interval of each steel plate 18 has the highest frequency.
8 intervals is detected by frequency processing, and this steel plate 18
Since the number of steel plates 18 is calculated by dividing the moving distance of the edge detection sensor by the interval, the edge detection sensor 4 may detect two steel plates 18 in a lapped manner, resulting in an undetected portion and false detection. Even if this occurs, the number of steel plates 18 can be accurately measured without counting a smaller number than the actual number due to the influence of this erroneous detection.

In addition, even when dividing (splitting) a board after stacking, it is no longer necessary for a measurer to count and divide each board one by one, and it is possible to instantly find the positions for dividing any number of boards. be. Furthermore, when measuring the number of stacked sheets, there is no need to provide additional equipment such as a re-piler as in the past, which is economically advantageous. Furthermore, a position detection amplifier 13, an edge detection amplifier 14, a signal controller 15, and an indicator 1
Since the device No. 6 is driven by a battery, it is possible to carry this device to any location and easily perform measurements.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be similarly implemented in the following manner.

(a) In the above embodiment, the position detection sensor 6 that detects the moving distance (position) is used as a movement detection sensor.
was used, but the slide block 2 is not limited to this.
A drive motor is installed in the reference bar 1.
When a rack gear is attached to the slider and sliding movement is performed by a motor drive system, it is also possible to use a movement time detection sensor that detects the movement time at a constant speed as the movement detection sensor.

(b) In the above embodiment, a basic type portable sheet counter was described, but the caliper type as shown in Fig. 5 a and b is not limited to this. Alternatively, it may be of a major type as shown in FIGS. 6a and 6b, so that the application can be selected according to the object to be measured. In each embodiment, in order to make the device more compact, the signal controller 15 shown in the basic type described above is made into a microcomputer.

(c) In the above embodiment, frequency processing is performed on the output signal from the edge detection sensor, but the invention is not limited to this, and statistical processing such as autocorrelation processing may be performed.

(Effects of the invention) As detailed above, according to the invention, the number of sheet materials such as stacked steel plates is counted by wrapping a plurality of sheet materials in an edge detection sensor, and this detection Provides a portable sheet counter that can perform accurate detection without being affected by erroneous detection even if undetected portions occur due to erroneous detection, and that can be performed simply and in a short time. can.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram showing an embodiment of a portable sheet counter according to the present invention, Fig. 2 is a functional block diagram showing an example of a signal controller in the same embodiment, and Figs. 3 a to d are usage methods of this device. Figures 4a to 4g are waveform diagrams for explaining the effects of the same embodiment, and Figures 5a, b and 6a and b are diagrams showing other embodiments of the present invention, respectively. FIG. 1...Reference bar, 2...Slide block, 3
... Handle, 4 ... Edge detection sensor, 5 ... Pointer, 6 ... Position detection sensor, 7, 9 ... Magnet, 8 ... Base, 10 ... Screw, 11 ... Base set screw, 12 ... sensor cable, 13
... Position detection amplifier, 14 ... Edge detection amplifier, 15 ... Signal controller, 16 ... Display device, 17 ... Portable case, 18 ... Steel plate.

Claims (1)

[Claims for Utility Model Registration] A portable sheet counter for counting the number of stacked sealing materials such as steel plates, provided movably in the stacking direction along the end surfaces of the sheet materials, an edge detection sensor that detects the state; a movement detection sensor that detects the travel distance or travel time of the edge detection sensor; and a movement detection sensor that receives the output signal of the edge detection sensor to determine the intervals between the respective sealing materials, and calculates the distance between these intervals. a frequency processing circuit that detects the interval between the sealing materials most frequently detected by the movement detection sensor; A portable sheet counter comprising: an arithmetic processing circuit that calculates the number of sheets of the sealing material by dividing by the interval.