Device for measuring size of cut stone

Abstract

The utility model relates to a device for measuring the size of a stone after cutting, which relates to the technical field of stone measuring devices and comprises a conveying table, a supporting frame is erected on the outer side of the front section of the conveying table, a balance wheel box is arranged on the rear section of the conveying table, and a torsion cylinder is arranged in the balance wheel box for torsion. The detected stones which do not conform to the cutting size are conveyed to a conveying belt to be recycled; an upper visual system module is installed at the top of the supporting frame, adjusting supports are symmetrically arranged at the corners of the supporting frame, diagonal visual system modules are installed through the adjusting supports, and the adjusting supports adjust the distance and the included angle between the diagonal visual system modules and stone in three spatial directions. The detection requirement is better met, and the optimal shooting effect is presented; the upper surface and the side face of the stone are covered with the visual system module, the thickness, the length and the width of the cut stone are photographed and measured, and manual work is replaced to rapidly, efficiently and intelligently detect the stone cutting quality.

Description

Technical Field

[0001] The utility model relates to the technical field of stone measuring devices, in particular to a device for measuring the size of stones after cutting. Background Art

[0002] Stone is the raw material for products in various industries. With the improvement of product quality requirements, the quality rate and finished product rate of stone are required to be higher and higher. It also requires real-time testing of the stone production process and strict size standards and overall quality control of the produced stone to ensure quality.

[0003] The existing method of measuring stone size is mainly manual inspection, which uses a steel ruler to measure the length, width and thickness of the stone plane to see if they meet the standards, and then classify, transport and recycle them according to the standards. The information data collected by manual measurement is not accurate, there are large errors and low efficiency, and the quality of stone production and processing cannot be guaranteed. Utility Model Content

[0004] In order to improve the problem in the process of measuring the size of stone after cutting in the above background technology, the utility model provides a device for measuring the size of stone after cutting.

[0005] The utility model provides a device for measuring the size of stone after cutting, which adopts the following technical scheme:

[0006] A device for measuring the size of stone after cutting, characterized in that: it includes a conveyor platform, a support frame is erected on the outer side of the front section of the conveyor platform, and a balance wheel box is provided at the rear section of the conveyor platform; an upper vision system module is installed on the top of the support frame, and adjustment brackets are symmetrically provided at the corners of the support frame and a diagonal vision system module is installed through the adjustment bracket; through the above technical scheme, the support frame provides installation support for the upper vision system module and the diagonal vision system module, the upper vision system module is used to take pictures of the length and width of the stone, and obtain the image information of the stone for convenient size measurement, and the diagonal vision system module is used to take pictures of the thickness of the stone after cutting, and obtain the image information of the stone for convenient size measurement.

[0007] Preferably, the adjustment bracket includes a horizontal axis and a vertical axis arranged vertically and crosswise, and a steering block is sleeved at the vertical intersection of the horizontal axis and the vertical axis; the vertical axis is arranged perpendicular to the ground, and the top end of the vertical axis is connected to a fixed block and fixedly connected to the support frame through the fixed block; the horizontal axis is arranged parallel to the ground, and a connecting block is slidably sleeved on the horizontal axis and fastened by bolts, and the connecting block is fixedly connected to the diagonal vision system module; through the above technical solution, the adjustment bracket mainly adjusts the distance and angle between the diagonal vision system module and the stone in three directions in space, and provides support.

[0008] Preferably, the diagonal vision system module includes a diagonal vision camera, a lens is provided at the receiving end of the diagonal vision camera, a light source is provided on one side of the lens, the diagonal vision camera is fixedly mounted on a mounting frame through a mounting plate on the bottom side, and the rear end of the mounting frame is fixedly connected to the connecting block.

[0009] Preferably, a torsion cylinder is arranged inside the balance wheel box, a balance wheel is evenly distributed on the top surface of the torsion cylinder, the bottom of the torsion cylinder is connected to the output end of the torsion motor and the torsion direction of the torsion cylinder is controlled by the torsion motor, and one side of the balance wheel box is externally connected to a conveyor belt.

[0010] Preferably, a control console is provided on one side of the conveying platform, and the upper vision system module, the diagonal vision system module and the torsion motor are all communicatively connected to the control console.

[0011] In summary, the utility model has the following beneficial technical effects:

[0012] 1. This device covers the visual system module on the upper surface and side of the stone, takes pictures and measures the thickness, length and width of the stone after cutting, replaces manual fast, efficient and intelligent detection of stone cutting quality, avoids the subjectivity of manual detection, greatly improves the detection rate, and reduces the manpower demand and cost of manual measurement.

[0013] 2. By setting the adjustment bracket, adjusting the lens angle and distance of the diagonal vision camera, the detection requirements can be better met and the best shooting effect can be presented. The data collection is more accurate, which provides an effective basis for users to judge the overall quality data in the stone production process.

[0014] 3. The diagonal vision system is set symmetrically to take more comprehensive photos of scattered or stacked stones after cutting, improve the accuracy of stone thickness detection, and can measure stacked stones at the same time.

[0015] 4. By setting up a balance wheel box, the torsion motor controls the torsion direction of the torsion cylinder inside the balance wheel box, and the stones that do not meet the cutting size are transported to the conveyor belt for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a partial installation schematic diagram of a device for measuring the size of stone after cutting according to an embodiment of the utility model;

[0017] Figure 2 It is a side view of the conveying platform and the supporting frame of the embodiment of the utility model;

[0018] Figure 3 It is an enlarged structural schematic diagram of the adjustment bracket of the embodiment of the utility model;

[0019] Figure 4It is an enlarged structural schematic diagram of a diagonal vision system module of an embodiment of the utility model;

[0020] Figure 5 It is a top view of the balance wheel box according to an embodiment of the utility model.

[0021] Explanation of the reference numerals: 1. conveyor platform; 2. support frame; 3. balance wheel box; 4. upper vision system module; 5. adjustment bracket; 6. diagonal vision system module; 7. horizontal axis; 8. vertical axis; 9. steering block; 10. fixing block; 11. connecting block; 12. bolt; 13. diagonal vision camera; 14. lens; 15. light source; 16. mounting plate; 17. mounting frame; 18. torsion cylinder; 19. balance wheel; 20. torsion motor; 21. conveyor belt; 22. control console; 23. stone; 24. upper vision camera; 25. second mounting plate; 26. second mounting frame; 27. second connecting block; 28. support rod. DETAILED DESCRIPTION

[0022] The following combination Figure 1-Figure 5 The utility model is described in further detail.

[0023] The utility model embodiment discloses a device for measuring the size of stone after cutting.

[0024] Reference Figure 1 A device for measuring the size of stone after cutting comprises a conveying platform 1, the conveying platform 1 conveys scattered or stacked stones 23, a support frame 2 is set on the outer side of the front section of the conveying platform 1, and a balance wheel box 3 is set on the rear section of the conveying platform 1; an upper visual system module 4 is installed on the top of the support frame 2, and the receiving end of the upper visual system module 4 is aligned with the top of the stone 23, and the length and width of the stone 23 are photographed to obtain the image information of the stone 23 for convenient size measurement; the corners of the support frame 2 are symmetrically provided with adjustment brackets 5, and a diagonal visual system module 6 is installed through the adjustment brackets 5, and the receiving end of the diagonal visual system module 6 is aligned with the corners of the stone 23, and the thickness of the scattered or stacked stones 23 after cutting is photographed to obtain the image information of the stone 23 for convenient size measurement.

[0025] Reference Figure 1 , Figure 3 The adjustment bracket 5 includes a horizontal axis 7 and a vertical axis 8 arranged vertically and crosswise, and a steering block 9 is sleeved at the vertical intersection position of the horizontal axis 7 and the vertical axis 8; the vertical axis 8 is arranged perpendicular to the ground, and the top of the vertical axis 8 is connected to a fixed block 10 and is fixedly connected to the support frame 2 through the fixed block 10; the horizontal axis 7 is arranged parallel to the ground, and a connecting block 11 is slidably sleeved on the horizontal axis 7 and fastened by bolts 12, and the connecting block 11 is fixedly connected to the diagonal vision system module 6. The adjustment bracket 5 mainly adjusts the distance and angle between the diagonal vision system module 6 and the stone 23 in three directions in space, and provides support.

[0026] Reference Figure 1 , Figure 4 The diagonal vision system module 6 includes a diagonal vision camera 13, a lens 14 is provided at the receiving end of the diagonal vision camera 13, a light source 15 is provided on one side of the lens 14, and the diagonal vision camera 13 is fixedly mounted on a mounting frame 17 through a mounting plate 16 on the bottom side, and the rear end of the mounting frame 17 is fixedly connected to the connecting block 11.

[0027] Reference Figure 1 , Figure 2 The upper vision system module 4 includes an upper vision camera 24, which is fixedly mounted on a second mounting bracket 26 through a second mounting plate 25 on the side. The rear end of the second mounting bracket 26 is fixedly connected to a second connecting block 27, and the second connecting block 27 is slidably sleeved on a supporting rod 28 at the top of the supporting frame 2.

[0028] Reference Figure 1 , Figure 5 A torsion cylinder 18 is arranged inside the balance box 3, and a balance wheel 19 is evenly distributed on the top surface of the torsion cylinder 18. The bottom of the torsion cylinder 18 is connected to the output end of the torsion motor 20 and the torsion direction of the torsion cylinder 18 is controlled by the torsion motor 20. A conveyor belt 21 is externally connected to one side of the balance box 3.

[0029] Reference Figure 1 A control console 22 is provided on one side of the conveying platform 1. The upper visual system module 4, the diagonal visual system module 6 and the torsion motor 20 are all connected to the control console 22 for communication. An information receiving module, an information processing module and an information sending module are provided in the control console 22. The information receiving module receives the image information sent by the upper visual system module 4 and the diagonal visual system module 6, and processes the information in the information processing module. The stone 23 that does not meet the length, width and thickness requirements is recorded and reminded, and the output of the torsion motor 20 is controlled through the information sending module.

[0030] The implementation principle of the embodiment of the utility model is:

[0031] Step 1: Build the visual system module: In order to obtain accurate size information, install the upper visual system module 4 and the diagonal visual system module 6 in sequence, adjust the position of the upper visual system module 4 so that the receiving end of the upper visual system module 4 is aligned with the top of the stone 23; adjust the distance and angle between the diagonal visual system module 6 and the stone 23 in three directions of space by adjusting the bracket 5, align the receiving end of the diagonal visual system module 6 with the corner of the stone 23, adjust the output angle of the light source 15 according to the position of the stone 23 and the upper visual system module 4 and the diagonal visual system module 6, and build a suitable visual light source;

[0032] Step 2: Camera calibration: The image information of the stone 23 is obtained mainly from three directions, namely, the upper visual camera 24 faces the top of the stone 23, and the diagonal visual camera 13 shoots and collects data from the diagonal side elevation of the stone 23. The corresponding camera calibration is performed at the shooting positions of the upper visual camera 24 and the diagonal visual camera 13. When the stone 23 is transported to the set shooting position, the upper visual camera 24 and the diagonal visual camera 13 shoot and collect data at the same time;

[0033] Step 3: Length, width and thickness measurement: For the length and width measurement, the upper visual system module 4 is mainly used to cover the entire upper surface area of ​​the stone 23 with the upper visual camera 24 and to capture and collect complete upper surface information of the stone 23. The data information is transmitted to the control console 22 and the length and width of the four edges of the upper surface of the stone 23 are calculated and compared through the information processing module. The stone 23 that does not meet the length and width accuracy requirements is recorded and reminded;

[0034] The thickness is measured mainly by using the diagonal vision system module 6. With the assistance of the light source 15, the diagonal vision camera 13 faces the diagonal side edge of the stone 23, and shoots and collects data on the diagonal side surface of the stone 23. For the stacked stones 23 that have been cut, in order to complete the thickness measurement of each layer of stone 23, the data information is transmitted to the control console 22 and the information processing module is used to extract and separate the feature points of the shot image, and the segmented image is subjected to image fitting and edge extraction algorithms to calculate the image pixel width, that is, the thickness of a single layer of stone 23. The thickness of the single layer of stone 23 is compared with the calibrated value. If there is any inconsistency, it proves that the thickness of the stone 23 is uneven. The number of layers of the single layer of stone 23 that does not meet the thickness requirements is recorded and reminded.

[0035] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A device for measuring the size of stone after cutting, characterized in that: The conveyor platform (1) comprises a support frame (2) arranged on the outer side of the front section of the conveyor platform (1), and a balance wheel box (3) arranged on the rear section of the conveyor platform (1); an upper visual system module (4) is installed on the top of the support frame (2), and adjustment brackets (5) are symmetrically arranged at the corners of the support frame (2), and diagonal visual system modules (6) are installed through the adjustment brackets (5).

2. The device for measuring the size of stone after cutting according to claim 1, characterized in that: The adjustment bracket (5) comprises a transverse axis (7) and a vertical axis (8) arranged vertically and crosswise, and a steering block (9) is sleeved at the vertical intersection of the transverse axis (7) and the vertical axis (8); the vertical axis (8) is arranged perpendicular to the ground, and the top end of the vertical axis (8) is connected to a fixed block (10) and is fixedly connected to the support frame (2) via the fixed block (10); the transverse axis (7) is arranged parallel to the ground, and a connecting block (11) is slidably sleeved on the transverse axis (7) and is fastened via bolts (12), and the connecting block (11) is fixedly connected to the diagonal vision system module (6).

3. The device for measuring the size of stone after cutting according to claim 2, characterized in that: The diagonal vision system module (6) comprises a diagonal vision camera (13), a lens (14) being provided at a receiving end of the diagonal vision camera (13), a light source (15) being provided at one side of the lens (14), the diagonal vision camera (13) being fixedly mounted on a mounting frame (17) via a mounting plate (16) on the bottom side, and a rear end of the mounting frame (17) being fixedly connected to a connecting block (11).

4. The device for measuring the size of stone after cutting according to claim 1, characterized in that: A torsion cylinder (18) is arranged inside the balance wheel box (3), and a balance wheel (19) is evenly distributed on the top surface of the torsion cylinder (18). The bottom of the torsion cylinder (18) is connected to the output end of a torsion motor (20), and the torsion direction of the torsion cylinder (18) is controlled by the torsion motor (20). One side of the balance wheel box (3) is externally connected to a conveyor belt (21).

5. The device for measuring the size of stone after cutting according to claim 4, characterized in that: A control console (22) is provided on one side of the conveying platform (1), and the upper visual system module (4), the diagonal visual system module (6) and the torsion motor (20) are all communicatively connected to the control console (22).

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