JP7185603B2 - Gun thickness measuring instrument - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thickness measuring instrument and a method for measuring the thickness of a sprayed material.

There are some that realize a predetermined function by applying a sprayed material to the wall surface of a building, the ground, or the like and hardening it. For example, foamed sponge insulation such as urethane, polyethylene, and phenol used for the walls of houses, fiber insulation such as glass wool, rock wool, and cellulose fiber, road paving, slopes, etc. , asphalt, mortar, cement, and construction materials such as concrete used for cliffs and slopes. In order to obtain the desired functions and performances, such a sprayed product must be applied or cured to a specified thickness, and the thickness of the applied product must be measured.

Conventionally, as this type of invention, the thickness of the urethane insulation sprayed on the wall surface of the house as shown in Japanese Patent Application Laid-Open No. 2016-197073 (Patent Document 1) and Japanese Patent Application Laid-Open No. 2008-298730 (Patent Document 2) There was something about the confirmation method.

Patent Document 1 has a pin with a blunt tip, a pressing portion, and a display portion. It is described that it is possible to check whether the thickness of the heat insulating material is above the specified value.

Patent Document 2 discloses a main body that has a measuring surface that can come into contact with a measuring needle for piercing a heat insulating material, and that supports the measuring needle with the tip of the measuring needle protruding from the measuring surface by a predetermined length. an ink guide portion provided on the tip side including the measurement surface of the main body; and an ink holding portion arranged adjacent to the ink guide portion of the main body and supplying the ink to the ink guide. It is described that ink adheres to the surface of the heat insulating material when it is pierced and comes into contact with the heat insulating material.

JP 2016-197073 A JP 2008-298730 A

In the techniques described in Patent Literatures 1 and 2, the thickness of a foamed sponge-like heat insulating material, for example, a urethane heat insulating material is measured with pinpoint accuracy. When spraying over a wide area such as the wall surface of a house, the measurement of the thickness of the entire wall surface requires an enormous number of measurements, which takes a lot of time. In addition, since these measurements are self-checked by field workers, they largely depend on the competence of the workers, and confirmation by a third party is also required.

In addition, the thickness data measured by the above technique must be manually recorded, which takes an enormous amount of time.

SUMMARY OF THE INVENTION An object of the present invention is to provide means for efficiently and quantitatively measuring and recording the thickness of a sprayed material over a wide range without relying on the skill of the operator.

In the present invention, in order to solve the above problems, the thickness measuring device of the sprayed matter in the embodiment includes an area sensor capable of measuring the distance between the measuring device and the sprayed matter in a specified area of the wall surface, and the measured information. Equipped with a storage unit and an arithmetic control unit that calculates the thickness of the sprayed material from the measured information, and by calculating the distance to the wall surface that is known in advance or measured in advance and the distance to the measured sprayed material. , the thickness of the spray can be known quantitatively.

Alternatively, the thickness measuring device of the sprayed material in the embodiment includes a spot sensor capable of spot-measuring the distance between the measuring device and the wall surface, and an area sensor capable of measuring the distance between the measuring device and the wall surface in a specified area of the wall surface. , a storage unit that stores information measured by each sensor described above, and an arithmetic control unit that calculates the thickness of the sprayed object from the measured information. , and quantitatively measures the thickness of the spray at the spot.

Alternatively, the tilt of the measuring instrument is corrected and the thickness is calculated. It is characterized by being able to quantitatively measure the thickness at an arbitrary point within the specified area from the result of measuring the distance between the measuring device and the wall surface in the specified area and the thickness measured by the spot.

According to the present invention, it is possible to quantitatively measure the thickness of the sprayed material at an arbitrary point within a wide area with a single measurement. In addition, measurement results can be recorded, connected to a display unit or PC, etc., and displayed with a tool such as 3D CAD, making it possible to visualize the measurement results, making it possible for workers or work requesters to easily check them.

1 is a front view of the sprayed material thickness measuring device 101 in Example 1. FIG. 2 is a control block diagram of the sprayed material thickness measuring device 101 in Example 1. FIG. FIG. 2 is a side view of the sprayed article thickness measuring device and the wall surface after spraying the sprayed article in Example 1; 2 is a side view of the sprayed material thickness measuring device 101 and the wall surface 105 in Example 1. FIG. It is the figure which looked at the sprayed material thickness measuring device 101 in Example 2 from the front. FIG. 11 is a control block diagram of the sprayed material thickness measuring device 101 in Example 2. FIG. It is the figure which looked at the sprayed material thickness measuring instrument and wall surface after spraying the sprayed material in Example 2 from the side. It is the figure which looked at the sprayed material thickness measuring device 101 and the wall surface 105 in Example 2 from the side. It is the figure seen from the side when the sprayed material thickness measuring device 101 and the wall surface 105 in Example 2 incline. This is the case where the wall surface 105 in the second embodiment has unevenness. It is the figure which looked at the sprayed material thickness measuring instrument and wall surface after spraying the sprayed material in Example 3 from the side.

Details of an embodiment of the method for measuring the thickness of a sprayed object according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a sprayed material thickness measuring device 101 in Example 1. FIG. The spray thickness measuring device 101 is composed of an area sensor 102 capable of measuring distance over a wide range.

The area sensor is a sensor such as a stereo camera, a structured light camera, a TOF camera (Time Of Flight Sensor), etc., which can measure the distance to each point within the measurement area over a wide range.

FIG. 2 is a block diagram of the spray thickness measuring device 101. As shown in FIG. An area sensor 102, an arithmetic control unit 201 that calculates the thickness of the sprayed material from sensor information, a storage unit 202 that records distance information, thickness measurement data, and information necessary for various corrections described later, an external device, and the like. It is composed of an interface unit 203 for exchanging data.

The interface unit can also be connected to a device such as a PC, and the thickness measurement result can be visually displayed as three-dimensional data on the device side.

A method of measuring the thickness of the sprayed object thickness measuring device 101 will be described below.

FIG. 3 is a side view of the sprayed object thickness measuring device 101 and the wall surface 105 after the sprayed object 401 has been sprayed. From the measurement result of the area sensor 102 and the distance from the spray thickness measuring device 101 to the wall surface 105, the distance from the measurement result of the area sensor 102 to the spray thickness measuring device 101 and each measurement point on the surface of the spray 401 is calculated. Subtract to calculate the spray thickness.

For each point in the measurement area plane, the area sensor 102 measures distance 404a to point A, distance 404b to point B, and distance 404c to point C on the surface of the sprayed material 401. measured as the distance of Since the measurement area of the area sensor is a plane, there is a difference in distance between the center and the edge corresponding to the viewing angle, but this is automatically corrected within the area sensor. That is, the distance between the area sensor 102 and the point A in FIG. 3 is measured as a straight line distance 404a between the surface 110 on which the area sensor 102 is arranged and the point A, not the distance indicated by the oblique line 102a1.

The distance between the sprayed material thickness measuring device 101 and the wall surface 105 is input to the storage unit 202 from a sketch or the like. 4 is a side view of the sprayed material thickness measuring device 101 and the wall surface 105. As shown in FIG. The distance 405 to the wall surface 105 may be measured in advance with the area sensor 102 using the sprayed object thickness measuring device 101 before spraying.

FIG. 5 is a front view of the sprayed material thickness measuring device 101B in the second embodiment. The sprayed material thickness measuring device 101B includes spot sensors 103a, 103b, and 103c for measuring the distance to the wall surface with spots, and an area sensor 102B capable of measuring the distance over a wide range. Spot sensors 103a, 103b, 103c and area sensor 102B are arranged on the same plane.

A spot sensor is a sensor such as an ultrasonic sensor with high directivity or a radar with high directivity that can measure the distance to a wall surface through sprayed matter. The area sensor 102 is similar to that described in the first embodiment.

FIG. 6 is a control block diagram of the sprayed material thickness measuring device 101B. Spot sensors 103a, 103b, 103c, area sensor 102B, and an arithmetic control unit 201B that calculates the thickness of the sprayed material from information acquired by these sensors, and records distance information, thickness measurement data, and information necessary for correction described later. It is composed of a storage unit 202B. The sprayed material thickness measuring instrument 101B has an interface 203B that can be connected to a device such as a display unit or a PC, and the thickness measurement result can be visually represented as three-dimensional data on the device side.

The method of measuring the thickness of the sprayed article thickness measuring instrument 101B will be described below.

FIG. 7 is a side view of the sprayed material thickness measuring device 101B and the wall surface 105B after spraying the sprayed material 401B. Distances 301a, 301b, and 301c to the wall surface are measured by spot sensors 103a, 103b, and 103c, respectively. Also, as in the first embodiment, the area sensor 102B measures the distance 404B (404aB, 404bB, 404cB) to the spray surface. By calculating the difference between the two distances, the thicknesses 403a, 403b, and 403c of the sprayed material at each location can be calculated.

FIG. 8 is a lateral view of the sprayed material thickness measuring device 101B and the wall surface 105B in the second embodiment. If the measuring surface 110B of the sprayed material thickness measuring device 101B and the wall surface 105B are parallel, one spot sensor may be used.

FIG. 9 is a side view of the sprayed material thickness measuring device 101B in Example 2, when the measuring surface is inclined with respect to the wall surface 105B. When the measurement surface of the sprayed material thickness measuring device 101B and the wall surface 105B are inclined, the inclination θ303 can be obtained by using a plurality of spot sensors and calculating the difference in the respective measurement distances. By correcting the distance measured by the area sensor 102B using this result, it is possible to accurately calculate the thickness of the sprayed material even when it is tilted. Alternatively, the spray thickness measuring device 101B may be adjusted so as to be parallel to the wall surface 105B from the obtained inclination θ303, and the distance may be measured again.

If the wall surface 105a has unevenness as shown in FIG. 10, the correct distance cannot be measured even with the same correction or adjustment as in FIG. By comparing the results of 103b and 103c, it is possible to detect unevenness of the wall surface 105a. These detection results are recorded in the storage unit 202 .

In Examples 1 and 2, the distance between the sprayed material thickness measuring device and the wall surface on which the sprayed material is formed is obtained by using a spot sensor, a sketch, or the like, or by measuring the distance before spraying the sprayed material. However, depending on the situation, it may be difficult to obtain the distance to the wall in that way. In this embodiment, even in such a case, the distance to the wall surface is obtained and the thickness of the sprayed material is measured.

FIG. 11 is a side view of the sprayed material thickness measuring device 101C and the wall surface 105C after spraying the sprayed material in Example 3. FIG.

A plurality of measuring needles 601a, 601b, 601c and reflecting plates 1401a, 1401b, 1401c are added to the configuration of the first embodiment at arbitrary positions from the tips of the measuring needles 601a, 601b, 601c. The reflectors 1401a, 1401b, and 1401c are plates that can be easily recognized as objects in the area sensor 102C.

In this configuration, since the lengths from the tips of the measurement needles 601a, 601b, and 601c to the reflectors 1401a, 1401b, and 1401c are known, the distance 1402 (1402a, 1402b, 1402c) measured by the area sensor 102C is can know From this and the distance 404C to the sprayed material measured at the same time, the thicknesses (403a, 403b, 403c) of the sprayed material can be calculated.

Further, by calculating the difference between the distances 1402a, 1402b, and 1402c measured by the area sensor 102C, the inclination between the sprayed material thickness measuring device and the wall surface can be obtained. By further calculating this result as the distance measured by the area sensor 102C, the thickness of the sprayed material can be accurately calculated even when it is tilted. Alternatively, based on the obtained inclination, the sprayed material thickness measuring device 101C may be adjusted so as to be substantially parallel to the wall surface 105C, and the distance may be measured again.

In this configuration, when scales are displayed on the measuring needles 601a, 601b, and 601c, the operator can check the amount of insertion on the spot. In other words, it is also possible for the operator to check the thickness of the sprayed object 401 on the spot. Also, instead of the scale, a display unit may be provided for display.

101 Sprayed material thickness measuring instrument 101B Sprayed material thickness measuring instrument 101C Sprayed material thickness measuring instrument 102 Area sensor 102B Area sensor 102a1 Imaginary line 102a1B representing the area measured by the area sensor 102a1B representing the area measured by the area sensor Virtual line 102a1C representing the area measured by the area sensor 102a2 Virtual line 102a2B representing the area measured by the area sensor Virtual line 102a2C representing the area measured by the area sensor Virtual line 102a2C representing the area measured by the area sensor Line 103a Spot sensor 103b at reference point A Spot sensor 103c at reference point B Spot sensor 105 at reference point C Wall surface 105B Wall surface 105C Wall surface 110 Area sensor measurement surface 110B Area sensor measurement surface 201 Arithmetic control unit 201B Arithmetic control unit 202 Storage unit 202B Storage unit 203 Interface 203B Interface 301a Measured distance between the spray thickness measuring device and the spray surface at reference point A 301b Spray thickness at reference point B Measured distance 301c between the measuring device and the surface of the sprayed material Measured distance 302a between the thickness gauge of the sprayed material and the surface of the sprayed material at the reference point C. Surface of the sprayed material when the thickness gauge of the sprayed material at the reference point A is tilted by θ. Measured distance 302b from the sprayed article surface when the sprayed article thickness measuring device at the reference point B is tilted by θ 302c ... Sprayed article surface when the sprayed article thickness measuring device at the reference point C is tilted by θ Actual distance 303a from the sprayed article surface when the sprayed article thickness measuring instrument at reference point A is tilted by θ 303b... Sprayed article surface when the sprayed article thickness measuring instrument is tilted by θ at reference point B Actual distance 303c from the sprayed object surface when the sprayed object thickness measuring instrument at the reference point C is tilted by θ 401 Sprayed object 401B Sprayed object 401C Sprayed object 403 Thickness of sprayed object 403a Reference Thickness of sprayed material at point A 403b Thickness of sprayed material at reference point B 403c Thickness of sprayed material at reference point C 404 Distance between sprayed material thickness measuring device and surface of sprayed material measured by area sensor 404B Area sensor Distance 404C between the sprayed article thickness measuring instrument and the sprayed article surface measured by the area sensor Distance 404a between the sprayed article thickness measuring instrument and the sprayed article surface measured by the area sensor ... A sprayed article thickness measuring instrument measured by the area sensor Distance 404aB from the surface of the sprayed material: Distance 4 between the thickness of the sprayed material measured by the area sensor at point A and the surface of the sprayed material 04b ... Distance between the sprayed article thickness measuring instrument and the sprayed article surface measured by the area sensor at point B 404b ... Distance between the sprayed article thickness measuring instrument and the sprayed article surface measured by the area sensor at point B 404c ... Area at point C Distance 404cB between the spray thickness measuring device and the sprayed product surface measured by the sensor Distance 405 between the sprayed product thickness measuring device and the sprayed product surface measured by the area sensor at point C: Sprayed product thickness measuring device measured by the area sensor and the wall surface distance 601a...Measurement needle of reference point A 601b...Measurement needle of reference point B 601c...Measurement needle of reference point C 1401a...Measurement needle of reference point A Reflector plate 1401b...Measurement needle of reference point B Reflector 1401c Reflector 1402a of measuring needle at reference point C Distance 1402b between the spray thickness measuring instrument and reflector at reference point A Distance 1402c between the spray thickness measuring instrument and reflector at reference point B Reference Distance between spray thickness gauge and reflector at point C

Claims (4)

A sprayed article thickness measuring instrument installed at a position facing a sprayed article formed on a wall surface to measure the thickness of the sprayed article from the wall surface,
an area sensor capable of measuring the distance to the sprayed article surface within an arbitrary area;
a storage unit that stores distance information within the measured area and the distance to the wall surface;
A spot sensor capable of measuring a distance to a specific portion of the wall surface;
an arithmetic control unit that calculates the thickness of the sprayed object from distance information to the surface of the sprayed object ,
A spray-on object thickness measuring device , wherein the thickness of the spray-on object is calculated and obtained from the measurement results of the area sensor and the spot sensor . The sprayed object thickness measuring device according to claim 1 ,
A plurality of the spot sensors,
obtaining and storing the inclination between the sprayed material thickness measuring device and the wall surface from the measurement results of the plurality of spot sensors;
A sprayed article thickness measuring instrument, wherein the thickness of the sprayed article is obtained by calculating the thickness of the sprayed article by applying inclination correction to the measurement results of the area sensor and the spot sensor. A sprayed article thickness measuring instrument installed at a position facing a sprayed article formed on a wall surface to measure the thickness of the sprayed article from the wall surface,
an area sensor capable of measuring the distance to the sprayed article surface within an arbitrary area;
a storage unit that stores distance information within the measured area and the distance to the wall surface;
an arithmetic control unit that calculates the thickness of the sprayed object from distance information to the surface of the sprayed object;
A measuring needle equipped with a reflector at a predetermined position from the tip is pierced into the sprayed product, and the distance to the reflector is measured with the tip hitting the wall surface, and the distance from the tip of the measuring needle to the position of the reflector is measured. Obtaining the distance between the spray thickness measuring device and the wall surface by adding the distances,
A sprayed material thickness measuring instrument characterized by detecting the thickness of the sprayed material at an arbitrary point within a designated area. The spray thickness measuring device according to claim 3 ,
measuring the distance from the measuring needle to the reflector,
From the measurement result, obtain and store the inclination between the spray thickness measuring device and the wall surface,
Applying tilt correction to the distance information after spraying the sprayed material using the result,
A sprayed material thickness measuring instrument characterized by detecting the thickness of the sprayed material at an arbitrary point within a designated area.

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