A device for detecting building materials based on optical measurements

Abstract

The application relates to the technical field of laser detection devices, in particular to a building material detection device based on optical measurement. The device comprises a rack, two fixed rods are fixedly connected to the rack, the two fixed rods are provided with an electric sliding rail, the electric sliding rail is provided with a sliding table, the sliding table is fixedly connected with a first fixed shell, the first fixed shell is slidingly connected with a first sliding piece, the first sliding piece is hingedly connected with a mounting plate, the mounting plate is fixedly connected with a laser range finder and a second fixed shell, the second fixed shell is provided with a second sliding piece, and the second sliding piece is rotatably connected with a first roller. The second fixed shell and the second sliding piece are arranged, when the lower protrusion shakes during the movement of the board, the second fixed shell and the second sliding piece drive the laser range finder to shake synchronously with the board, the distance between the laser range finder and the board is kept, the influence of the vibration of the lower protrusion of the board on the detection when the lower protrusion passes through the conveying roller is reduced, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser detection devices, in particular to a building material detection device based on optical measurement. BACKGROUND

[0002] There are various types of building material detection devices, wherein a building board flatness laser detection device is an advanced device for non-contact, high-precision and rapid flatness (or straightness, planeness) measurement of surfaces of various boards such as metal, wood, plastic, glass and composite materials by using laser technology and optical sensing principle. The device mainly comprises a laser emitter and an optical receiver. If the board surface is completely flat, the position of the reflected laser line on the camera sensor is a standard straight line. If the board surface is uneven (not flat), the position of the reflected laser line on the camera sensor will be offset or distorted.

[0003] In use, the existing laser detection device generally adopts a laser detector fixed and a board moved to detect the board. In the process of conveying the board, the existing device conveys the board through a plurality of rotating conveying rollers. However, if the lower side of the board is contaminated and has a protrusion in the conveying process, the protrusion will lift the board when passing through the conveying roller, thereby changing the distance between the board and the laser detector and affecting the detection precision of the board. SUMMARY

[0004] In order to overcome the shortcomings mentioned in the background, the application provides a building material detection device based on optical measurement.

[0005] The technical scheme of the application is: a building material detection device based on optical measurement, comprising a rack, a plurality of conveying rollers are rotationally connected to the rack and a first motor is fixedly connected to the rack, an output shaft of the first motor is fixedly connected to one of the conveying rollers, a plurality of the conveying rollers are driven through a chain wheel and chain, two fixed rods are fixedly connected to the rack, an electric sliding rail is arranged on the two fixed rods, a sliding table is arranged on the electric sliding rail, a first fixed shell is fixedly connected to the sliding table, a first sliding piece is slidingly connected to the first fixed shell, a first sensor is fixedly connected to the first fixed shell, a first spring is arranged between the first sensor and the first sliding piece, an installation plate is hingedly connected to the first sliding piece, a laser range finder and a second fixed shell are fixedly connected to the installation plate, a second sliding piece is arranged on the second fixed shell, and a first roller is rotationally connected to the second sliding piece.

[0006] Preferably, a third fixed shell is fixedly connected to the installation plate, the laser range finder is located between the third fixed shell and the second fixed shell, a third sliding piece is arranged on the third fixed shell, and a second roller is rotationally connected to the third sliding piece.

[0007] As preferred, the second fixed shell is provided with a first chamber and a first sliding slot, the third fixed shell is provided with a second chamber and a second sliding slot, the second sliding member and the third sliding member slide in the first chamber and the second chamber respectively, a second spring is arranged between the second sliding member and the second fixed shell, a third spring is arranged between the third sliding member and the third fixed shell, a first extrusion member and a second extrusion member are slidably connected to the first sliding slot and the second sliding slot respectively, the first extrusion member and the second extrusion member extrude each other with the second sliding member and the third sliding member respectively, the mounting plate is slidably connected with a sliding shell, the sliding shell is slidably connected with an adjusting member, a fourth spring is arranged between the adjusting member and the sliding shell, the first sliding slot, the second sliding slot and the sliding shell are filled with liquid for transmission, and the first sliding slot and the second sliding slot are communicated with the sliding shell.

[0008] As preferred, the sliding table is fixedly connected with an electric clamping jaw, which is used for extruding the sliding shell and the adjusting member.

[0009] As preferred, the sliding table is fixedly connected with a fourth fixed shell, the fourth fixed shell is slidably connected with a fourth sliding member, the fourth fixed shell is fixedly connected with a second sensor, a fifth spring is arranged between the second sensor and the fourth sliding member, and the fourth fixed shell is rotatably connected with a third roller.

[0010] As preferred, the rack is fixedly connected with a dust collecting box, the dust collecting box is provided with two material passing holes, the material passing holes are used for allowing material to pass, the dust collecting box is rotatably connected with a cleaning brush, the cleaning brush and the conveying roller are communicated and driven through a chain wheel, the dust collecting box is rotatably connected with two rotating rollers, a belt is arranged between the two rotating rollers, the belt is provided with bristles, the dust collecting box is fixedly connected with a second motor, and an output shaft of the second motor is fixedly connected with one of the rotating rollers.

[0011] As preferred, the rotating direction of the chain wheel on the cleaning brush is opposite to the rotating direction of the chain wheel on the conveying roller.

[0012] As preferred, the dust collecting box is fixedly connected with a first cleaning member and a second cleaning member, and the first cleaning member and the second cleaning member are used for cleaning the cleaning brush and the bristles of the belt respectively.

[0013] As preferred, the first roller, the second roller and the third roller are all made of rubber.

[0014] As preferred, the back sides of the sliding shell and the adjusting member are both provided with friction materials.

[0015] The beneficial effects produced by the above technical scheme are as follows: the second fixing shell and the second sliding member are arranged, when the lower protrusion shakes during the movement of the plate, the laser range finder is driven to shake synchronously with the plate by the second fixing shell and the second sliding member, the distance between the laser range finder and the plate is kept, thereby reducing the influence of the vibration of the lower protrusion of the plate on the detection when the plate passes through the conveying roller, and improving the detection accuracy.

[0016] The third fixing shell and the third sliding member are arranged, when the plate is inclined, the laser range finder inclines with the plate, the parallel state between the laser range finder and the plate is kept, thereby further improving the detection accuracy.

[0017] The first sensor and the second sensor are arranged, the change of the pressure is monitored to determine whether the uneven part of the plate is on the upper side or the lower side, the connection state between the second fixing shell and the second sliding member and the third fixing shell and the third sliding member is controlled by the electric clamping jaw, thereby improving the detection accuracy of the plate flatness of the device under different conditions.

[0018] The impurities on the surface of the plate are cleaned before the detection, thereby removing the protrusion formed by the impurities on the surface of the plate, and reducing the shaking of the plate during the movement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the first fixing shell and the first sliding member of the present application;

[0021] Figure 3 It is a three-dimensional structure sectional view of the second fixing shell and the third fixing shell of the present application;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the cleaning brush and the rotating roller of the present application;

[0023] Figure 5 It is an explosion diagram of the first cleaning member and the second cleaning member of the present application.

[0024] The marks in the drawings: 1- rack, 2- conveying roller, 3- first motor, 4- fixed rod, 5- electric sliding rail, 6- sliding table, 7- first fixed shell, 8- first sliding piece, 801- first sensor, 802- first spring, 9- mounting plate, 10- laser range finder, 11- second fixed shell, 1101- first cavity, 1102- first chute, 12- second sliding piece, 1201- second spring, 13- first roller, 14- third fixed shell, 1401- second cavity, 1402- second chute, 15- third sliding piece, 16- second roller, 1601- third spring, 17- first extrusion piece, 18- second extrusion piece, 19- sliding shell, 20- adjusting piece, 2001- fourth spring, 21- electric clamping jaw, 22- fourth fixed shell, 23- fourth sliding piece, 2301- second sensor, 2302- fifth spring, 24- third roller, 25- dust collecting box, 2501- material hole, 26- cleaning brush, 27- rotating roller, 28- belt, 29- second motor, 30- first cleaning piece, 31- second cleaning piece. DETAILED DESCRIPTION

[0025] The following description is only the preferred embodiment of the present application, and does not limit the protection scope of the present application.

[0026] Example 1

[0027] A building material detection device based on optical measurement, please refer to Figures 1-3 , including a rack 1, the rack 1 is rotatably connected with a plurality of conveying rollers 2 and is fixedly connected with a first motor 3, the output shaft of the first motor 3 is fixedly connected with the left conveying roller 2, the plurality of conveying rollers 2 are driven by chain and sprocket, the middle part of the upper side of the rack 1 is fixedly connected with two fixed rods 4, the two fixed rods 4 are commonly provided with an electric sliding rail 5, the electric sliding rail 5 is provided with a sliding table 6, the lower side of the sliding table 6 is fixedly connected with a first fixed shell 7, the first fixed shell 7 is slidably connected with a first sliding piece 8, the first fixed shell 7 is fixedly connected with a first sensor 801, the first sensor 801 and the first sliding piece 8 are provided with a first spring 802, the first sensor 801 is a pressure sensor, used for monitoring the pressure of the first spring 802, the lower side of the first sliding piece 8 is hingedly connected with a mounting plate 9, the lower side of the mounting plate 9 is fixedly connected with a laser range finder 10 and a second fixed shell 11, the laser range finder 10 is located at the left side of the second fixed shell 11, the second fixed shell 11 is provided with a second sliding piece 12, the second sliding piece 12 is rotatably connected with a first roller 13, the first roller 13 is in contact with the board, so that when the board shakes, the first roller 13 keeps in contact with the board, maintains the relative position between the laser range finder 10 and the board, and reduces the detection error caused by the shaking of the board.

[0028] Please refer to Figure 2 and Figure 3The lower side of the mounting plate 9 is fixedly connected with a third fixed shell 14, the third fixed shell 14 is located at the left side of the laser range finder 10, the third fixed shell 14 and the second fixed shell 11 are respectively located at the two sides of the laser range finder 10, and the centers of the projections of the three on the horizontal plane are located on the same straight line, the third fixed shell 14 is provided with a third sliding part 15, and the third sliding part 15 is rotatably connected with a second roller 16.

[0029] Please refer to Figure 2 and Figure 3 The second fixed shell 11 is provided with a first cavity 1101 and a first sliding groove 1102, the third fixed shell 14 is provided with a second cavity 1401 and a second sliding groove 1402, the second sliding part 12 and the third sliding part 15 slide in the first cavity 1101 and the second cavity 1401 respectively, the second sliding part 12 is provided with a second spring 1201 between the second fixed shell 11, the third sliding part 15 is provided with a third spring 1601 between the third fixed shell 14, the first sliding groove 1102 and the second sliding groove 1402 are respectively slidably connected with a first extrusion part 17 and a second extrusion part 18, the first sliding groove 1102 and the first extrusion part 17 and the second sliding groove 1402 and the second extrusion part 18 are provided with sealing parts, the first extrusion part 17 and the second extrusion part 18 are respectively extruded with the second sliding part 12 and the third sliding part 15, the front sides of the first extrusion part 17 and the second extrusion part 18 are respectively curved surfaces matched with the second sliding part 12 and the third sliding part 15, and the curved surfaces are provided with friction materials, so as to increase the friction force when the second sliding part 12 and the third sliding part 15 are extruded, the upper side of the mounting plate 9 is slidably connected with a sliding shell 19, the front side of the sliding shell 19 is slidably connected with an adjusting part 20, the adjusting part 20 is composed of a disc at the front and back sides and a round rod at the middle part, the disc at the back side of the adjusting part 20 and the round rod are both provided with sealing parts between the sliding shell 19, the fourth spring 2001 is arranged between the adjusting part 20 and the back side of the sliding shell 19, the first sliding groove 1102, the second sliding groove 1402 and the part of the sliding shell 19 in front of the back side disc of the adjusting part 20 are all filled with a liquid for transmission, the liquid can be selected from hydraulic oil or water, the first sliding groove 1102 and the second sliding groove 1402 are in communication with the sliding shell 19 through pipelines.

[0030] Please refer to Figure 2 and Figure 3 The sliding table 6 is fixedly connected with an electric clamp jaw 21, the electric clamp jaw 21 is used for extruding the sliding shell 19 and the adjusting part 20, so as to drive the first extrusion part 17 and the second extrusion part 18 to release the extrusion of the second sliding part 12 and the third sliding part 15 through the sliding shell 19 and the adjusting part 20. The back sides of the sliding shell 19 and the adjusting part 20 are both provided with friction materials, so as to increase the friction force when the electric clamp jaw 21 clamps the sliding shell 19 and the adjusting part 20, so that the mounting plate 9 will not rotate.

[0031] Please refer toFigure 2 And Figure 3 The lower side of the sliding table 6 is fixedly connected with a fourth fixed shell 22, the fourth fixed shell 22 is located on the left side of the first fixed shell 7, the fourth fixed shell 22 is slidingly connected with a fourth sliding piece 23, the fourth fixed shell 22 is fixedly connected with a second sensor 2301, the second sensor 2301 is provided with a fifth spring 2302 between the fourth sliding piece 23, the second sensor 2301 is a pressure sensor, used for monitoring the pressure of the fifth spring 2302 on it, the lower side of the fourth fixed shell 22 is rotatably connected with a third roller 24. The first roller 13, the second roller 16 and the third roller 24 are all made of rubber, so as to reduce the damage of the first roller 13, the second roller 16 and the third roller 24 to the plate.

[0032] When the device is used to detect the plate, first start the first motor 3, the output shaft of the first motor 3 drives the adjacent conveying roller 2 to rotate, and drives the rest of the conveying roller 2 to rotate through the chain wheel and chain, then places the plate on the conveying roller 2, the conveying roller 2 drives the plate to move from left to right, when the plate passes below the laser range finder 10, the flatness of the plate is detected by the laser range finder 10, when the lower side of the plate has a protrusion, the plate is lifted up and tilted when the protrusion passes through the conveying roller 2, at this time the plate lifts up the first roller 13, the second roller 16 and the third roller 24 at the same time, the third roller 24 extrudes the fifth spring 2302 through the fourth sliding piece 23, at this time the pressure received by the second sensor 2301 increases, the first roller 13 and the second roller 16 drive the mounting plate 9 to move upwards through the second sliding piece 12 and the second fixed shell 11 and the third sliding piece 15 and the third fixed shell 14 respectively, the mounting plate 9 drives the first sliding piece 8 to move upwards, the first sliding piece 8 compresses the first spring 802, at this time the pressure received by the first sensor 801 increases, in this process, the mounting plate 9 always keeps parallel with the plate, so as to keep the distance between the laser range finder 10 and the plate unchanged, reduce the influence of the vibration of the plate caused by the protrusion on the lower side of the plate passing through the conveying roller 2 on the detection accuracy of the laser range finder 10.

[0033] When there is a groove or a protrusion on the upper side of the plate, taking the protrusion as an example, the protrusion first passes through the third roller 24, at this time the pressure on the second sensor 2301 becomes larger, but the pressure on the first sensor 801 has not changed, at this time the electric clamp jaw 21 is started, the clamp jaw of the electric clamp jaw 21 clamps the sliding shell 19 and the adjusting piece 20, the sliding shell 19 and the adjusting piece 20 move towards each other and compress the fourth spring 2001, at the same time, the negative pressure is formed in the sliding shell 19, the liquid in the first sliding groove 1102 and the second sliding groove 1402 is sucked into the sliding shell 19, the liquid in the first sliding groove 1102 and the second sliding groove 1402 is reduced, the first extrusion piece 17 and the second extrusion piece 18 are driven to move, so that the first extrusion piece 17 and the second extrusion piece 18 are separated from the second sliding piece 12 and the third sliding piece 15 respectively, then the protrusion moves to contact the second roller 16 and the first roller 13 in sequence, at this time, the second sliding piece 12 and the third sliding piece 15 move upwards due to the absence of the restriction of the first extrusion piece 17 and the second extrusion piece 18 when the protrusion passes through, and press the second spring 1201 and the third spring 1601 respectively, when the protrusion passes through the second sliding piece 12 and the third sliding piece 15, the two are reset under the action of the second spring 1201 and the third spring 1601 respectively, so that the mounting plate 9 does not rotate, at the same time, the electric clamp jaw 21 clamps the sliding shell 19 and the adjusting piece 20, further fixes the mounting plate 9, and further makes the laser range finder 10 more stable, reduces the error of the laser range finder 10 when detecting the uneven place on the surface of the plate, after the protrusion passes through the first roller 13, the electric clamp jaw 21 releases the sliding shell 19 and the adjusting piece 20, the sliding shell 19 and the adjusting piece 20 move reversely under the action of the fourth spring 2001, so as to drive the first extrusion piece 17 and the second extrusion piece 18 to reset and fix the second sliding piece 12 and the third sliding piece 15 again.

[0034] Example 2

[0035] Based on example 1, please refer to Figure 1 , Figure 4 and Figure 5The left part of the rack 1 is fixedly connected with a dust collecting box 25, the dust collecting box 25 is provided with two left and right material passing holes 2501, the material passing holes 2501 are used for allowing the board to pass, the dust collecting box 25 is rotationally connected with a cleaning brush 26, the cleaning brush 26 is used for cleaning the lower side of the board, the cleaning brush 26 passes through the front side of the dust collecting box 25, the cleaning brush 26 is communicated and driven through a chain wheel between the conveying roller 2, the dust collecting box 25 is rotationally connected with two rotating rollers 27, the two rotating rollers 27 are provided with a belt 28, the belt 28 is provided with bristles, the bristles on the belt 28 are used for cleaning the upper side of the board, the left side of the dust collecting box 25 is fixedly connected with a second motor 29, the output shaft of the second motor 29 is fixedly connected with the front rotating roller 27, the dust collecting box 25 is provided with a cleaning door, which is used for taking out the impurities accumulated in the dust collecting box 25. The rotating direction of the chain wheel on the cleaning brush 26 is opposite to the rotating direction of the chain wheel on the conveying roller 2.

[0036] Please refer to Figure 1 、 Figure 4 and Figure 5 The right side in the dust collecting box 25 is fixedly connected with a first cleaning piece 30, the front and back sides in the dust collecting box 25 are each fixedly connected with a second cleaning piece 31, the first cleaning piece 30 and the second cleaning piece 31 are respectively used for cleaning the bristles of the cleaning brush 26 and the belt 28, the two second cleaning pieces 31 are arranged, so that the belt 28 can be cleaned in any direction.

[0037] Before the board is detected, the board first passes through the dust collecting box 25, when the board passes through the dust collecting box 25, the second motor 29 is started, the output shaft of the second motor 29 drives the rotating roller 27 to rotate, the rotating roller 27 drives the belt 28 to rotate, the bristles on the belt 28 clean the upper side of the board, at the same time, the cleaning brush 26 cleans the lower side of the board, so as to reduce the influence of the impurities on the surface of the board on the detection, in the process that the cleaning brush 26 cleans the board, the cleaning brush 26 passes through the first cleaning piece 30, the impurities attached to the cleaning brush 26 are scraped off through the first cleaning piece 30, at the same time, the second cleaning piece 31 scrapes off the impurities attached to the bristles of the belt 28, the scraped-off impurities fall into the dust collecting box 25, every time a period of time (the time is limited by the user) elapses, the cleaning door is opened to remove the impurities in the dust collecting box 25, so as to continue to use.

[0038] The above only describes the preferred embodiments of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A building material testing device based on optical measurement, comprising a frame (1), wherein the frame (1) is rotatably connected to a plurality of conveying rollers (2) and fixedly connected to a first motor (3), the output shaft of the first motor (3) is fixedly connected to one of the conveying rollers (2), the plurality of conveying rollers (2) are driven by sprockets and chains, the frame (1) is fixedly connected to two fixed rods (4), the two fixed rods (4) are jointly provided with an electric slide rail (5), the electric slide rail (5) is provided with a slide table (6), characterized in that, The sliding table (6) is fixedly connected with a first fixed shell (7), the first fixed shell (7) is slidably connected with a first sliding piece (8), the first fixed shell (7) is fixedly connected with a first sensor (801), a first spring (802) is arranged between the first sensor (801) and the first sliding piece (8), the first sliding piece (8) is hingedly connected with a mounting plate (9), the mounting plate (9) is fixedly connected with a laser range finder (10) and a second fixed shell (11), the second fixed shell (11) is provided with a second sliding piece (12), the second sliding piece (12) is rotatably connected with a first roller (13); The mounting plate (9) is fixedly connected with a third fixed shell (14), the third fixed shell (14) is provided with a third sliding piece (15), the third sliding piece (15) is rotatably connected with a second roller (16); The second fixed shell (11) is provided with a first cavity (1101) and a first sliding groove (1102), the third fixed shell (14) is provided with a second cavity (1401) and a second sliding groove (1402), the first sliding groove (1102) and the second sliding groove (1402) are slidably connected with a first extrusion piece (17) and a second extrusion piece (18) respectively, the first extrusion piece (17) and the second extrusion piece (18) are extruded with each other respectively by the second sliding piece (12) and the third sliding piece (15), the mounting plate (9) is slidably connected with a sliding shell (19), the sliding shell (19) is slidably connected with an adjusting piece (20).

2. The construction material detection device based on optical measurement according to claim 1, characterized in that, The laser range finder (10) is located between the third fixed shell (14) and the second fixed shell (11).

3. The apparatus for detecting a building material based on optical measurement according to claim 2, wherein The second sliding piece (12) and the third sliding piece (15) slide in the first cavity (1101) and the second cavity (1401) respectively, a second spring (1201) is arranged between the second sliding piece (12) and the second fixed shell (11), a third spring (1601) is arranged between the third sliding piece (15) and the third fixed shell (14), a fourth spring (2001) is arranged between the adjusting piece (20) and the sliding shell (19), the first sliding groove (1102), the second sliding groove (1402) and the sliding shell (19) are all filled with a liquid for transmission, the first sliding groove (1102) and the second sliding groove (1402) are in communication with the sliding shell (19).

4. The apparatus for detecting a building material based on optical measurement according to claim 3, wherein The sliding table (6) is fixedly connected with an electric clamping jaw (21), the electric clamping jaw (21) is used for extruding the sliding shell (19) and the adjusting piece (20).

5. The apparatus for detecting a building material based on optical measurement according to claim 4, wherein The sliding table (6) is fixedly connected with a fourth fixed shell (22), the fourth fixed shell (22) is slidably connected with a fourth sliding piece (23), the fourth fixed shell (22) is fixedly connected with a second sensor (2301), a fifth spring (2302) is arranged between the second sensor (2301) and the fourth sliding piece (23), the fourth fixed shell (22) is rotatably connected with a third roller (24).

6. The apparatus for measuring building materials based on optical measurement according to claim 1, characterized in that, The rack (1) is fixedly connected with a dust collecting box (25), the dust collecting box (25) is provided with two material passing holes (2501) for passing material, the dust collecting box (25) is rotationally connected with a cleaning brush (26), the cleaning brush (26) and the conveying roller (2) are communicated and driven through a chain wheel, the dust collecting box (25) is rotationally connected with two rotating rollers (27), two rotating rollers (27) are provided with a belt (28) therebetween, the belt (28) is provided with bristles, the dust collecting box (25) is fixedly connected with a second motor (29), and an output shaft of the second motor (29) is fixedly connected with one of the rotating rollers (27).

7. The apparatus for detecting a building material based on optical measurement according to claim 6, wherein The rotating direction of the chain wheel on the cleaning brush (26) is opposite to the rotating direction of the chain wheel on the conveying roller (2).

8. The apparatus for detecting a building material based on optical measurement according to claim 6, wherein The dust collecting box (25) is fixedly connected with a first cleaning member (30) and a second cleaning member (31), and the first cleaning member (30) and the second cleaning member (31) are respectively used for cleaning the bristles of the cleaning brush (26) and the belt (28).

9. The apparatus for measuring building materials based on optical measurement according to claim 5, characterized in that, The first roller (13), the second roller (16) and the third roller (24) are all made of rubber.

10. The apparatus for measuring building materials based on optical measurement according to claim 4, characterized in that, The back sides of the sliding shell (19) and the adjusting member (20) are both provided with friction materials.

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