JP6151038B2 - Measuring method of building board dimensions - Google Patents

Description

  The present invention relates to a method for measuring dimensions of a building board used for an exterior material or the like.

  In a building such as a house or a building, an architectural board is used as an exterior material to enhance the appearance design. If such a building board deviates from a predetermined dimension, the appearance may be deteriorated or the workability may be deteriorated. Therefore, it is necessary to accurately measure the dimensions at the time of manufacture. Therefore, a measurement method that can measure the dimensions of the building board with a simple method and with high accuracy is desired. Conventionally, to measure the dimensions of a building board, for example, a method by manual measurement by an operator has been performed. However, in this case, it takes manpower and time, and there is a possibility that the measurement accuracy may deteriorate. It was. Therefore, as shown in FIG. 6, while the building board (article 40) to be measured is conveyed by the conveyor 45, the sensor 42 provided around the conveyor 45 (for example, above the conveyor 45) detects the building board. A method has been proposed in which the surface is detected and the dimension L is measured based on the conveyance speed and detection time of the building board (for example, see Patent Document 1). In addition, the direction of the block arrow in FIG.

Japanese Patent Laid-Open No. 9-14924

  However, the above-mentioned building board (article 40) usually has uneven portions such as an embossed pattern as a design pattern on the surface thereof. Therefore, in the measurement of a single building board, the sensor 42 detects the concave part of the uneven part on the surface of the building board or detects the convex part, and the height of the object to be detected is detected. It is not constant because it varies. If the height of the detection location varies in this way, the detection by the sensor 42 may become unstable, resulting in a large variation in the measured value of the dimension L, which may reduce the measurement accuracy. .

  This invention is made | formed in view of said point, and it aims at providing the measurement method of the dimension of a building board which can measure the dimension of a building board by a simple method with high measurement accuracy.

  The present invention relates to a method for measuring a size of a building board in which the size of the building board is measured while the building board is conveyed by a conveying means, and a speed sensor is installed around the conveying means, and the building board Has at least one flat detecting portion formed by extending from one end to the other end, and the building is extended so that the extending direction of the detecting portion is the same as the conveying direction of the building board. The board is placed on the conveying means and conveyed, and the conveying part of the building board to be conveyed is detected by the speed sensor to measure the conveying speed of the building board, and based on the measured value of the conveying speed, The dimension of the building board is measured by calculating the total length of the detection unit.

  Further, in the above method for measuring the size of the building board, a height detection sensor is installed around the conveying means, and while the height detection sensor detects the height of the detection unit, It is preferable to measure the dimensions.

  In the method for measuring dimensions of a building board according to the present invention, the conveying speed of the building board 1 is measured by detecting the detecting part 10 with the speed sensor 3 while conveying the building board 1 on which the flat detecting part 10 is formed. The dimension L of the building board 1 is measured by calculating the total length of the detection unit 1 based on this transport speed. Thus, by detecting the detection unit 10 formed in a flat shape, the height detected by the speed sensor 3 is constant, the detection is stable, and the error in measuring the dimensions of the building board is reduced. It can be measured by a simple method.

It is the schematic explaining an example of embodiment of the dimension measuring method of the building board of this invention. An example of the building board which is a measuring object of the dimension measuring method of the building board of this invention is shown, (a) is a part of the top view of the building board, (b) is a part of the side view of the building board. Show. The other example of the building board which is a measuring object of the dimension measuring method of the building board of this invention is shown, (a) is a part of top view of the building board, (b) is one side view of the building board Indicates the part. (A), (b) is the schematic explaining the slip which a building board produces on a conveyance means. It is data which shows the measurement result of the dimension of a building board, (a) is the measurement result of the dimension obtained by detecting the uneven surface of a building board, (b) is the building board obtained by detecting a flat detection part. (C) is a dimension measurement result obtained without height detection, (d) is a dimension measurement result obtained by height detection, and (e) is not subjected to arithmetic processing. (F) is a graph which shows the measurement result of the dimension of the building board obtained by carrying out arithmetic processing. It is the schematic explaining an example of the dimension measuring method of the conventional building board.

  Hereinafter, modes for carrying out the present invention will be described.

  Drawing 1 is a schematic diagram explaining an example of an embodiment of a method of measuring size L of building board 1 in the present invention. In the method according to this embodiment, an apparatus (hereinafter simply referred to as a measuring apparatus) including at least a conveying means 2 for conveying the building board 1 and a speed sensor 3 is used. As will be described later, the measuring device is configured to measure the dimension L of the building board 1 while conveying the building board 1 in one direction. The dimension L of the building board 1 here means the length from the front end side to the rear end side with respect to the conveying direction of the building board 1. Hereinafter, first, the building board 1 and the measuring device will be described.

  The building board 1 is used for a wall exterior material or the like, and is formed, for example, in a substantially rectangular or square square plate shape in plan view. The building board 1 may be either an inorganic material such as a ceramic base material or a metal base material, or an organic material such as a resin base material. In the case of ceramic-based substrates, use those that are prepared by blending inorganic fillers, fibrous materials, etc. with hydraulic glue, such as cement, which is the raw material of the inorganic cured body, and then curing and curing. Can do.

  As an example of the building board 1 that can be a measurement object of the present invention, as shown in FIGS. 2A and 2B, there is a building board 1 having a cutting margin 11 at a side end. 2A shows a part of the plan view of the building board 1, FIG. 2B shows a part of the side view thereof, and the whole shape of the building board 1 is omitted in FIG. For example, it is formed in a plan view long shape (or a square shape).

  The cutting allowance 11 is formed so that it may protrude over the full length of the side edge part of the building board 1, and the other edge part (2nd edge part 1b) from one edge part (1st edge part 1a) of the building board 1 is shown. ) Is provided so as to extend. In FIG. 2, the cutting allowance 11 is formed lower than the other portions, but is not limited thereto, and may be formed higher than the other portions, and may be the same height as the other portions. Also good.

  One surface or both surfaces of the cutting allowance 11 are formed in a flat shape. Then, as shown in FIG. 2, the flat surface of the cutting allowance 11 becomes the detection unit 10. As will be described later, the detection unit 10 is a part that becomes a detection part (may be called a measurement part) when measuring the dimensions of the building board 1. The detection unit 10 extends from the first end 1 a toward the second end 1 b and is formed over the entire length of the building board 1. The cutting allowance 11 may be removed by cutting after the dimension measurement described later is completed. For example, the cutting allowance 11 can be cut and removed along a cutting line indicated by a two-dot chain line in FIG. In addition, arbitrary patterns (for example, uneven pattern) may be formed in parts other than the cutting allowance 11 of the building board 1. Moreover, the cutting allowance 11 may be formed only in one side edge part, and may be formed also in the other side edge part.

  As the building board 1, as shown in FIGS. 3 (a) and 3 (b), a structure in which the concave portions 12 and the convex portions 13 are alternately and repeatedly provided on the surface can be the measurement object of the present invention. 3A shows a part of a plan view of the building board 1, and FIG. 3B shows a part of a side view of the building board 1. FIG. When measuring such a building board 1, if the top surface of the convex portion 13 is flat, the convex portion 13 may be used as the detection unit 10, and the bottom surface (that is, the joint groove) of the concave portion 12 is flat. If so, the recess 12 may be used as the detection unit 10. However, the top surface of the convex portion 13 and the concave portion 12 need to be formed flat over the entire length of the building board 1.

  Of course, the building board 1 which can be made into the object by the measuring method of this invention is not limited to the thing of said structure. In short, the building board 1 has the detection part 10 extended toward the other end part (2nd end part 1b) from one edge part (1st edge part 1a), and this detection part 10 As long as at least the surface is formed flat, it can be a measurement object of the measurement method of the present invention. It suffices that at least one such detection unit 10 is formed on the surface of the building board 1. Of course, two or more detection units 10 may be formed.

  Although the dimension of the width direction (direction orthogonal to the extending direction of the detection unit 10) of the detection unit 10 is not particularly limited, for example, it may be formed with a width of about 5 to 10 mm.

  As the conveyance means 2, as shown in FIG. 1, for example, a known belt conveyor can be used. In this embodiment, the belt conveyor uses a conveyor belt unit 2a and a drive unit 2b (for example, a pulley), but is not limited to this. The conveying means 2 may be various conveyors such as a chain conveyor and a roller conveyor in addition to the belt conveyor. Moreover, the conveyance means 2 is not limited to a conveyor, For example, what is like a drive-type trolley | bogie which can move to at least one direction may be used.

  The speed sensor 3 measures the conveyance speed of the building board 1, and for example, a commercially available general speed measurement sensor can be used. The speed sensor 3 may be a non-contact type speed sensor such as a laser Doppler system. The speed sensor 3 measures a moving speed while detecting an object (a building board 1 in the present invention) as a target object.

  As shown in FIG. 1, for example, the speed sensor 3 is arranged above the transport unit 2 and fixed at a position where the detection unit 10 of the building board 1 transported by the transport unit 2 can be detected. Thus, by arrange | positioning the speed sensor 3, it becomes possible to measure the conveyance speed of the building board 1 while detecting the detection part 10 currently formed in the single side | surface of the building board 1. FIG. In particular, it is preferable to arrange the speed sensor 3 so that the speed sensor 3 can be detected from a substantially vertical direction side with respect to the detection unit 10 of the building board 1. In this case, the speed sensor 3 can measure the conveyance speed of the building board 1 more accurately.

  Moreover, as shown in FIG. 1, you may provide the calculating part 4 in the said measuring apparatus. The calculation part 4 is comprised so that the dimension L of the building board 1 can be calculated based on the conveyance speed measured with the speed sensor 3, as mentioned later. As the calculation unit 4, for example, a known unit such as a computer or an automatic computer can be employed. In this case, the calculation unit 4 may be electrically connected to the speed sensor 3. Further, the calculation unit 4 and the transport unit 2 may be electrically connected, and the driving speed of the transport unit 2 may be input to the calculation unit 4.

  Next, the method to measure the dimension L of the building board 1 using said measuring apparatus is demonstrated.

  First, the building board 1 formed as described above is placed on the conveying means 2. If the conveying means 2 is a belt conveyor as in the embodiment of FIG. 1, the building board 1 is placed on the conveying belt portion 2a.

  In placing the building board 1, the extending direction of the detection unit 10 provided on the building board 1 is set to face the same direction as the conveying direction of the building board 1. In the embodiment of FIG. 1, the building board 1 is placed on the transport belt portion 2 a so that the first end 1 a is located on the front side with respect to the transport direction and the second end 1 b is located on the rear side with respect to the transport direction. It is placed. In FIG. 1, the direction of the block arrow indicates the conveyance direction of the building board 1.

  Further, when placing the building board 1, the horizontal direction of the building board 1 in advance so that the flat surface of the detection unit 10 formed on the building board 1 can pass directly under the speed sensor 3 ( That is, the position is adjusted in the direction orthogonal to the transport direction. That is, the position of the building board 1 is adjusted so that the speed sensor 3 can pass the position where the detection unit 10 can be detected. When a plurality of detection units 10 are formed on the building board 1, the position of the building board 1 may be adjusted to a position where at least one detection unit 10 is detected by the speed sensor 3.

  After placing the building board 1 as described above, the conveying means 2 is driven to convey the building board 1 in one direction (the direction of the block arrow in FIG. 1). In addition, you may make it mount the building board 1 in the conveyance means 2 in the state which driven the conveyance means 2 beforehand.

  When the building board 1 is conveyed toward the conveying direction, the first end 1a of the building board 1 (the front end of the detection unit 10) eventually reaches the lower side of the speed sensor 3. At this time, the speed sensor 3 detects the detection part 10 of the building board 1 and the measurement of the conveyance speed of the building board 1 is started. The speed sensor 3 continues to detect the detection unit 10 provided on the building board 1 while the building board 1 passes directly under the speed sensor 3. At the same time as the second end 1b (the rear end of the detection unit 10), which is the rear end of the building board 1, passes below the speed sensor 3, the detection of the speed sensor 3 is completed.

  As described above, the speed sensor 3 measures the conveyance speed of the detection unit 10 while detecting the detection unit 10. The conveyance speed of the detection unit 10 corresponds to the conveyance speed of the building board 1. Then, the dimension of the detection unit 10 is calculated from the product of the measurement value of the conveyance speed of the detection unit 10 and the detection time of the detection unit 10. The calculation of the dimensions of the detection unit 10 may be performed automatically by the speed sensor 3 or may be calculated by a calculation unit 4 such as a computer connected to the speed sensor 3 as shown in FIG. It may be done.

  The dimension of the detection unit 10 calculated based on the measurement value of the conveyance speed of the detection unit 10 as described above is the total length of the detection unit 10 in the extending direction, that is, from the first end 1a of the building board 1 to the second end. It is equal to the length to the part 1b. Therefore, the dimension of the detection unit 10 calculated in this way corresponds to the dimension L of the building board 1.

  In the above method, the dimension L of the building board 1 is measured so that the detection unit 10 which is a flat surface is detected by the speed sensor 3, and therefore, compared with the case where the portion having the unevenness on the surface is measured. The speed detection of the plate 1 becomes more stable. Therefore, according to the measuring method of the present invention, the dimension L of the building board 1 can be accurately measured. Such an improvement in accuracy is also apparent from the results of dimension measurement data shown in FIGS. 5A and 5B described below.

  FIG. 5A shows data obtained by measuring the conveyance speed (detection speed) of the building board 1 while detecting the positions where the unevenness is formed on the surface of the building board 1, and FIG. The data which measured the conveyance speed (detection speed), detecting the performed detection part 10 are shown. In either case, the vertical axis represents the detection speed, and the horizontal axis represents the number of measurements. From a comparison between the two, the detection speed varies greatly in FIG. 5A measured at the uneven portion, whereas in FIG. 5B measured the detection unit 10 formed on the flat surface, the detection speed is different. It is clear that the variation is reduced.

  It is also preferable to use a non-contact type sensor as the speed sensor 3. In this case, for example, even if dust or steam is generated from the building board 1, it is less affected by the detection, and more stable detection is possible. As a result, the dimensional measurement accuracy is further increased. It becomes. Specifically, when a transmissive photoelectric tube type detector is used to detect the building board 1, the detection may be unstable due to dust or vapor generated from the building board 1. Such a risk is greatly reduced with a contact-type sensor. In particular, when the dimension L of the building board 1 is measured immediately after the building board 1 is manufactured, a large amount of dust and vapor is generated. Therefore, in the measurement using the transmission photoelectric tube type detector, a measurement error is caused. Becomes very large. However, if a non-contact type sensor is used as the speed sensor 3, the dimension L can be measured with high accuracy even if the building board 1 is just manufactured.

  In the above description, the detection unit 10 has been described with the building board 1 formed from the first end 1a toward the second end 1b, but is orthogonal to the detection unit 10 (first detection unit). Furthermore, another detection unit 10 (second detection unit) may be formed along the entire length of the building board 1. In this case, if the measurement is performed by one detection unit 10 (first detection unit) and then the measurement is performed by the other detection unit 10 (second detection unit), the longitudinal direction of the building board 1 and It is possible to measure the dimension L in any direction in the lateral direction.

  Next, another embodiment of the method for measuring the dimensions of the building board will be described.

  If the thickness of the building board 1 to be measured is thin, it is usually difficult to stably detect the building board 1 (detection unit 10), so that the measured value of the conveyance speed varies, and as a result, the building board There is a possibility that the measurement accuracy of the dimension L of 1 will deteriorate. Then, when measuring the conveyance speed of the thin building board 1, a dimension measurement can also be performed, detecting the height of the building board 1 with a height detection sensor. A height detection sensor here is a sensor which can detect the height of a measuring object (in the case of the present invention, building board 1). The height detection sensor may be provided separately from the speed sensor 3, or the speed sensor 3 may be provided with a height detection function so that the speed sensor 3 can be used as a height detection sensor. It may be. When the speed sensor 3 is also provided with a height detection function, the moving speed of the object (that is, the conveyance speed of the building board 1) can be measured while the height is detected by the speed sensor 3. In addition, the height of the building board 1 here shows the height from the conveyance surface (conveyance belt part 2a upper surface) by the conveyance means 2 to the detection part 10 surface. Hereinafter, the height may be simply referred to as “height H”.

  When measuring using the height detection sensor, the height detection sensor is set and inputted in advance with the height detection sensor to detect the height H to be detected, and only the set height H is detected. It is only necessary to give a command.

  When the conveyance speed of the building board 1 is measured while detecting the height H by the height detection sensor, even if the building board 1 is thin, that is, the building board 1 has a small value of the height H. Thus, the detection unit 10 can be easily detected. Therefore, even if the thickness of the building board 1 is thin, the building detection board 1 that is the measurement target portion can be easily detected by the height detection sensor, so that the conveyance speed can be stably measured. The dimension L of the plate 1 can be measured with higher accuracy. Further, by measuring the dimension L of the building board 1 while detecting only the predetermined height H, it is less likely to be affected by dust adhering to the building board 1 or steam generated from the building board 1. It is clear from the results of FIGS. 5 (c) and 5 (d) described below that the measurement accuracy is improved by measuring the dimensions while performing height detection in this way.

  Here, FIG. 5C shows data obtained by measuring the dimension L without detecting the height, and FIG. 5D shows data obtained by measuring the dimension L while detecting the height. The dimension L and the horizontal axis indicate the number of measurements. From a comparison between the two, in FIG. 5C measured without height detection, the dimension L has a large variation, whereas in FIG. 5D measured while detecting the height, the measurement variation of the dimension L It is clear that is reduced.

  In the present invention, it is also preferable to measure the dimension L of the building board 1 by correcting the distance (hereinafter referred to as slip correction) that the building board 1 has slipped on the transporting means 2 during transportation. Hereinafter, a method for measuring the dimension L by performing the slip correction will be described in detail.

  When the building board 1 is placed and transported on the upper surface of the transport belt portion 2a, while the dimension L of the building board 1 is being measured, the building board 1 is on the transport belt portion 2a in the transport direction side, that is, In some cases, the building board 1 may slip on the traveling direction side. Alternatively, the building board 1 may slip on the conveying belt portion 2a on the side opposite to the conveying direction, that is, on the side opposite to the traveling direction of the building board 1 in some cases.

  FIG. 4 shows a state in which the building board 1 has caused the above-mentioned slip on the conveying means 2. FIG. 4A illustrates a state in which the building board 1 has slid by a distance X toward the conveyance direction (in the direction of the block arrow) on the upper surface of the conveyance belt portion 2a during conveyance. Here, the code | symbol "20" in Fig.4 (a) shows the position of the 1st end part 1a (front end side) before a slip generate | occur | produces in the building board 1 (henceforth "the front end position 20"). ). Therefore, in FIG. 4A, the first end 1a of the building board 1 after sliding is shifted by a distance X from the front end position 20 to the transport direction side. On the other hand, FIG. 4B illustrates a state in which the building board 1 slides by a distance X on the upper surface of the transport belt portion 2a in the direction opposite to the transport direction during transport. In this case, the first end 1a of the building board 1 after sliding is displaced by a distance X from the front end position 20 to the opposite side to the transport direction. In the following, the distance X in FIGS. 4A and 4B is referred to as “slip distance X”.

  As shown in FIG. 4, if the building board 1 slides to the conveying direction side or the opposite direction side with respect to the conveying surface, the conveying speed of the building board 1 cannot be measured accurately, and as a result, the dimensions of the building board 1 L cannot be calculated accurately.

  Therefore, even if the building board 1 slips as described above, the sliding distance X of the building board 1 is corrected by an arithmetic expression so that the dimension L can be measured accurately. Hereinafter, this correction is referred to as “slip correction”.

  Here, the sliding distance X and the dimension L (mm) of the building board 1 can be calculated by the following arithmetic expressions (1) and (2), respectively.

Sliding distance X (mm) = (V1-V2) × T (1)
Dimension L (mm) = V1 × T + X (2)
In the above arithmetic expression, V1 (mm / s) is the transport speed measured by the speed sensor 3, and V2 (mm / s) is the drive speed of the transport means 2. If the embodiment of FIG. 1 is taken as an example, the driving speed V2 corresponds to the moving speed of the transport belt portion 2a in the transport direction. T (s) is a time during which the speed sensor 3 detects the building board (that is, a time required for the building board 1 to pass through the speed sensor 3).

  First, the slippage distance X of the building board 1 is calculated by the arithmetic expression (1), and then the dimension L of the building board 1 is calculated from the slippage distance X using the arithmetic expression (2). Therefore, in the slip correction, by using the arithmetic expressions (1) and (2), the distance slipped in the transport direction or the opposite direction side, that is, the slip distance X is calculated, and the slip distance X is corrected. Thus, the dimensions of the building board 1 are measured. According to the above arithmetic expressions (1) and (2), even if slip occurs during conveyance, the dimension L excluding the effect of this slip is obtained.

  As described above, if the arithmetic processing is performed using the arithmetic logics according to the arithmetic expressions (1) and (2), while the dimensions of the building board 1 are being measured, the transport means 2 (the transport belt portion 2a) is measured. Even if the building board 1 slips in (above), a large error is less likely to occur in the measured dimension L. Therefore, if the dimension is measured while performing such slip correction, the dimension L can be measured with high accuracy.

  The drive speed V2 may be measured by newly providing a sensor for measuring the drive speed of the transport unit 2 separately from the speed sensor 3, for example. Is the drive speed displayed on the transport unit 2? Alternatively, when the driving speed can be set, the value may be applied to the above formula.

  Further, as shown in FIG. 1, a calculation unit 4 may be provided separately, and the calculation unit 4 may perform calculation processing according to the above formula. Also in this case, the calculation part 4 can employ | adopt well-known things, such as a computer and an automatic computer, for example. In the embodiment of FIG. 1, the calculation unit 4 is electrically connected to the speed sensor 3 and the transport unit 2, and the transport speed V <b> 1 of the building board 1 and the drive speed of the transport unit 2 measured by the speed sensor 3. V2, and the detection time of the building board 1 (detection unit 10) and the like are input to the calculation unit 4. And the arithmetic part 4 calculates by the arithmetic logic of said formula, and the dimension L of the building board 1 comes to be calculated.

  It is clear from the results of FIGS. 5C and 5D that the measurement accuracy is improved if the dimension L of the building board 1 is measured by performing the slip correction by the arithmetic logic.

  FIGS. 5E and 5F show the difference in measurement accuracy of the dimension L depending on the presence or absence of arithmetic processing. FIG. 5E shows the case where the dimension L is measured without arithmetic processing. The measurement result when the dimension L is measured by performing arithmetic processing is shown. In any graph, the vertical axis and the horizontal axis are the same as those in FIGS. Further, the “measured value” in FIGS. 5E and 5F indicates the value of the dimension L measured by the measuring apparatus shown in FIG. 1, and the “actually measured value” indicates the dimension L measured with a measure or the like. Is a measured value, that is, a manually measured value. When the measurement is performed without the arithmetic processing as shown in FIG. 5E, that is, when the measurement is performed without the slip correction, the difference between the measured value and the actual measurement value is large, as shown in FIG. It can be seen that the difference between the measured value and the actually measured value is small when the measurement is performed with the slip correction. Therefore, it can be seen that the measurement accuracy is improved by performing the arithmetic processing by the slip correction.

  As described above, if the measurement method of the present invention is used, the dimension L of the building board 1 can be measured with high accuracy, and the occurrence of dimensional variations in the building board 1 can be suppressed. For example, in the manufacture of building board 1, if the above measurement method is used in the dimension measurement after manufacturing, even if a building board 1 with poor dimensions is generated, it can be easily found, and the building board has stable dimensional quality. 1 can be provided. For this reason, when the building board 1 is constructed at the construction site, factors that hinder the construction due to defective dimensions and the like are unlikely to occur, and the construction can proceed smoothly at the construction site. Therefore, the measurement method is suitable for quality control, and is a very suitable measurement method for manufacturing the building board 1 widely used in the field of building materials such as houses, stores, and buildings.

DESCRIPTION OF SYMBOLS 1 Building board 2 Conveying means 3 Speed sensor 4 Calculation part 10 Detection part L Size

Claims (2)

A method for measuring the size of a building board that measures the dimensions of this building board while conveying the building board by a conveying means,
A speed sensor is installed around the transport means, and the building board has at least one or more flat detection parts formed by extending from one end to the other end,
The building board is placed on a conveying means and conveyed so that the extending direction of the detecting unit is the same direction as the conveying direction of the building board, and the detection unit of the conveyed building board is detected by the speed sensor. And measuring the size of the building board by measuring the transport speed of the building board and calculating the total length of the detection unit based on the measured value of the transport speed. .   The height detection sensor is installed in the circumference | surroundings of the said conveyance means, The dimension of the said building board is measured, detecting the height of the said detection part with this height detection sensor. A method for measuring dimensions of a building board as described in 1.

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