Plate detection device

Abstract

The present invention discloses a plate detection device, including a detection group, which includes two detection components. A plurality of displacement sensors are provided in the two detection components, and the displacement sensors in different detection components correspond to each other one by one. A gap is left between the two detection components to pass through the plate, and the displacement sensors in the two detection components are all facing the gap between the two detection components. In this plate detection device, the plate passes through the gap between the two detection components, and the detection components located on both sides of the plate obtain data through the measurement of the displacement sensors, and the surface condition and thickness of the plate can be obtained by calculating the data. When used in the detection of ceramic tile blanks, the problem of inaccurate measurement existing in traditional manual detection can be avoided, the labor cost can be reduced, and the ceramic tile blanks will not be damaged. The production quality of the ceramic tile blanks can be detected in real time and efficiently. This invention is used in the field of plate detection.

Description

Technical Field

[0001] The present invention relates to the field of plate detection, and in particular to a plate detection device. Background Art

[0002] As a building and decoration material, ceramic tiles are widely used because of their good performance advantages, environmental protection and easy construction. Ceramic tiles are usually fired from ceramic tile embryos, which are generally made by pressing raw materials such as ground and stirred clay. The quality of the finished ceramic tile depends on the quality of the ceramic tile embryos, but usually, the press will cause wear and deviation after long-term use in a high-pressure environment. At this time, the embryos processed by the press are prone to defects. Defective embryos will produce unqualified ceramic tile products, affecting the product qualification rate and increasing production costs. Therefore, there is a process for detecting the thickness of ceramic tile embryos in the ceramic tile production process, and the working conditions of the press can be known from this.

[0003] At present, the process of detecting the thickness of tile blanks is generally carried out by manual sampling. The operator uses a caliper to measure the four corners of the blanks at fixed intervals. If the deviation of the four corners exceeds the allowable range, the thickness is considered to be poor. However, the efficiency of manual inspection is low, and there is a large deviation in manual inspection, and it cannot well reflect the actual production status of the blanks. Moreover, depending on the different inspection methods, the measurement results are different and are greatly affected by subjective factors. At the same time, the real-time performance of manual inspection is poor, and it usually takes a period of time before the problem is discovered, which will cause the tile blanks in this period to be scrapped. In addition, due to the low hardness of the blanks, the tile blanks will basically be damaged during manual handling and inspection, which is easy to damage qualified tile blanks and cause waste, which also causes the inability to conduct frequent inspections during manual inspections. Summary of the invention

[0004] The purpose of the present invention is to provide a real-time and efficient plate material detection device.

[0005] The technical solution adopted by the present invention is: a plate detection device, including a detection group, the detection group includes two detection components, both detection components are provided with a plurality of displacement sensors, the displacement sensors in different detection components correspond to each other one by one, a gap passing through the plate is left between the two detection components, and the displacement sensors in the two detection components are both facing the gap between the two detection components.

[0006] As an improvement of the above solution, both detection components include a shell, a chamber for accommodating the displacement sensor is provided in the shell, a gap is provided on the shell at the gap position, and each displacement sensor faces the gap.

[0007] As an improvement of the above solution, the shell is connected to a blowing device for blowing air into the chamber.

[0008] As an improvement of the above solution, a guide rail is provided in the housing, and each displacement sensor is connected to the guide rail via a slider.

[0009] As an improvement to the above solution, a baffle for shielding the gap is provided on the shell at the gap position.

[0010] As an improvement of the above solution, a cylinder is provided on the shell, and the cylinder drives the baffle to move.

[0011] As an improvement of the above scheme, a first end plate and a second end plate are respectively provided at both ends of the detection group, the first end plate is provided with a first opening and a second opening respectively connected to the chamber, the blowing device blows air into the chamber through the second opening, and a movable end cover is provided on the second end plate.

[0012] As an improvement of the above solution, the number of displacement sensors in the two detection components is 3 to 7.

[0013] As an improvement of the above solution, each displacement sensor is a laser displacement sensor.

[0014] As an improvement to the above solution, there are multiple detection groups.

[0015] The beneficial effects of the present invention are as follows: in this plate detection device, the plate passes through the gap between two detection components, and the detection components located on both sides of the plate obtain data through measurement by the displacement sensor. The surface condition and thickness of the plate can be obtained by calculating the data. When used in the detection of ceramic tile blanks, the problem of inaccurate measurement existing in traditional manual detection can be avoided, and labor costs can be reduced. Moreover, detection through the detection components on both sides of the plate can avoid the vibration of the plate during the detection process, and reduce the requirements for conveying equipment. At the same time, the device will not cause damage to the ceramic tile blanks during the detection process, which greatly improves the detection efficiency. The device can be set in the production process of ceramic tile blanks to detect the production quality of ceramic tile blanks in real time and efficiently, and can detect unqualified ceramic tile blanks in time, thereby obtaining the implementation status of the press and maintaining the press in time to ensure production efficiency and production quality. In addition, the device has a compact structure, is simple to install, and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the internal structure of the device;

[0018] Figure 2 is a schematic diagram of the structure of the device;

[0019] Figure 3 is a schematic diagram of the back structure of the device;

[0020] Figure 4It is a schematic diagram of the structure of the detection component;

[0021] Figure 5 is an exploded view of the detection assembly;

[0022] Figure 6 It is a first diagram of the detection component;

[0023] Figure 7 is a second illustration of the detection component;

[0024] Figure 8 yes Figure 6 A magnified image of the position A in the middle;

[0025] Fig. 9 yes Figure 7 Enlarged view of position B in the middle. DETAILED DESCRIPTION

[0026] Reference Figures 1 to 9 The present invention is a plate detection device, including a detection group. The detection group includes two detection components, and a plurality of displacement sensors 14 are arranged in both detection components. A bracket or a housing 1 for fixing the displacement sensor 14 is usually arranged on the detection component, and the displacement sensor 14 can be arranged to be completely fixed or to be arranged in an adjustable position. A gap is left between the two detection components to pass through the plate. Generally, the detection components are long strips and arranged to be parallel to each other. The width and length of the gap should be correspondingly greater than the thickness and width of the measured plate. The displacement sensors 14 in the two detection components are all facing the gap between the two detection components. The displacement sensors 14 in different detection components correspond to each other one by one, that is, the displacement sensors 14 exist in pairs and are respectively located in different detection components. And the plate detection device is usually placed horizontally, and the plate passes through the gap horizontally. In the process of passing, the points on the plate detected by the same pair of displacement sensors 14 should be located in the same vertical direction. That is, by adjusting the direction of the displacement sensor 14, the plane projections of the points measured by the same pair of displacement sensors 14 can overlap. The displacement sensor 14 is connected to an external power supply through a wire, and sends the measured data to an external processing device through a data line for data processing. Preferably, multiple detection groups can be set, which can be used to measure different points on the same plate, and can also be used for multiple measurements to improve the accuracy of the plate detection device. Since the thickness detection of the plate is obtained by using the distance difference measured by the displacement sensors 14 on both sides of the plate, the vibration generated by the conveying operation during the detection process will not affect the detection of the plate thickness, thereby reducing the requirements for the conveying equipment.

[0027] As a preferred embodiment, both detection components include a shell 1, and a chamber for accommodating a displacement sensor 14 is provided in the shell 1. A gap 19 is provided on the shell 1 at the gap position, and each displacement sensor 14 faces the gap 19. When the displacement sensor 14 is a laser displacement sensor, the laser passes through the gap 19 to measure the plate. This design can prevent dust or other substances on the plate from falling into the plate detection device and affecting the measurement of the displacement sensor 14. Preferably, the shell 1 is connected to a blowing device for blowing air into the chamber. The blowing device can be an external air source, or some blowers. Generally, the four sides of the chamber on the shell 1 will be closed to a certain extent, which can ensure that the gas blown into the chamber flows out from the gap 19. This design can prevent dust or other substances from falling into the displacement sensor 14, and can reduce the humidity of the plate detection device to ensure its performance.

[0028] As a preferred embodiment, a baffle 16 for shielding the gap 19 is provided on the housing 1 at the position of the gap 19. The length and width of the baffle 16 should be greater than the length and width of the gap 19, and can fully fit with the surface where the gap 19 is located. The housing 1 is usually set as a rectangular box structure, and two housings 1 are opposite to each other through a surface to form a gap. The gap 19 is generally located in the middle position of the opposite surface, and the baffle 16 is tightly attached to the surface. The baffle 16 can be set as a snap-on structure, which can be opened manually when the plate detection device is used, or a driving device can be provided to open and close it. Preferably, the baffle 16 is controlled by a cylinder 17. The pneumatic fixed cylinder 17 is usually fixed on the housing 1, and its piston is set to be parallel to the surface of the housing 1 in the gap. Two cylinders 17 are usually set on a housing 1, respectively located at the two ends of the baffle 16, and the baffle 16 is fixed on the piston so that the cylinder 17 can push the baffle 16 away from the gap 19 or shield the gap 19.

[0029] As a preferred embodiment, a guide rail 11 is provided in the housing 1, and each displacement sensor 14 is connected to the guide rail 11 through a slider 12. The displacement sensor 14 can move along the guide rail 11 through the slider 12, which is convenient for adjustment according to the width of the plate. The displacement sensor 14 is usually connected to the slider 12 through a connecting block 13, and the connecting block 13 is usually set as a T-shaped structure including a vertical plate and a horizontal plate, the horizontal plate is connected to the slider 12, and the vertical plate is connected to the side of the displacement sensor 14, which can further facilitate maintenance.

[0030] As a preferred embodiment, the two ends of the detection group are respectively provided with a first end plate 2 and a second end plate 3, which can assist in maintaining the gap between the two detection components. Usually, both ends of the shell 1 are not closed and are respectively connected to the first end plate 2 and the second end plate 3. The first end plate 2 is provided with a first opening 21 and a second opening 22 respectively connected to the chamber, and the blowing device blows air into the chamber through the second opening 22. The first opening 21 is used to pass the wire and data line connected to the displacement sensor 14. Usually, two first openings 21 and two second openings 22 are respectively provided, and one first opening 21 and one second opening 22 correspond to one detection component. The second end plate 3 is provided with a movable end cover 31, each shell 1 has a corresponding end cover 31, and the end cover 31 can be connected to the chamber by removing it. When the end cover 31 is not removed, the second end plate 3 is closed and seals one end of the shell 1 where it is located. When the end cover 31 is removed, an opening connected to the chamber is formed on the second end plate 3, which can facilitate internal dust cleaning.

[0031] As a preferred embodiment, the number of displacement sensors 14 in the two detection components is 3 to 7, so that the detected data will not be too dense, and the width range of the applicable plate is 300 mm to 800 mm.

[0032] In this embodiment, the number of detection groups is set to 1, and each detection assembly is provided with 7 displacement sensors 14, each displacement sensor 14 is a laser displacement sensor. The displacement sensor 14 is usually a non-contact sensor. For the measurement of ceramic tile blanks, a laser displacement sensor is generally selected to obtain a relatively good measurement accuracy. At the same time, the two sides of the housing 1 are set in an open form and are provided with two detachable side panels 15, and the side panels 15 are fixed to the side openings of the housing 1 by screws. This arrangement can facilitate the adjustment of the position of the displacement sensor 14 and facilitate subsequent maintenance work. The middle part of the baffle 16 is generally set as a flush plate, with both ends folded upward, and a corner plate connected to the piston of the cylinder 17 is provided. Usually, the piston passes through the hole of the corner plate on the baffle 16, and the end of the piston is provided with a thread, and the baffle 16 is fixed by two nuts tightened on different sides. The cylinder 17 is mounted on the housing 1 through a support seat, and a stop plate 18 is provided on the housing 1 to limit the position of the baffle 16 in the length direction and limit the position of the support seat along the width direction of the baffle 16. The guide rail 11 is configured as a long convex rail structure, and the slider 12 is provided with a corresponding groove. The convex rail and the groove can fit together, and are usually tightly connected, ensuring that the slider 12 will not be radially displaced and the slider 12 will not easily slide axially along the guide rail 11. A locking assembly can be provided on the slider 12, and the locking assembly can fully stabilize the relative position of the slider 12 to prevent the slider 12 from moving along the guide rail 11 during the detection process. The first end plate 2 is usually configured to be relatively large, and a hole that can be installed is provided on the portion that exceeds the detection group, so as to facilitate the installation and fixation of the plate detection device. The blower is connected to the second opening 22, and the wind blown in by the blower is filtered through the filter.

[0033] The plate detection device is used to detect the tile blanks. Generally, it is set after the brick blank press. The tile blanks produced by the press are directly sent to the plate detection device for detection, ensuring that the tile blank detection is real-time and efficient. First, adjust the displacement sensor 14 in each detection component according to the width of the tile to ensure that the relative position sensors in different detection components are located in the same vertical direction. Then, open the baffle 16 and start the blower, such as Figure 7 As shown, the baffle 16 is removed to expose the gap 19, and the air flow blown into the cavity by the blower flows out from the gap 19. The press is started to produce tile blanks, and after the production of the tile blanks is completed, they are transported to the gap of the plate detection device through the conveyor belt for detection. Since the gas blown in by the blower continuously flows out from the gap 19, the dust and moisture shed from the tile blanks will not enter the gap 19, and the gas flowing out from the gap 19 can effectively clean the newly produced tile blanks. And after the production and detection are completed, the baffle 16 is closed by the cylinder 17, as shown in FIG. Figure 6As shown, the baffle 16 blocks the gap 19. At this time, the end cover 31 can be opened and air can be blown by a blower. The airflow can sweep the inside of the chamber, and the dust accumulated in the shell 1 for a long time can be blown out from the opening at the end cover 31 to keep the inside of the plate detection device clean.

[0034] The laser displacement sensor used here uses a laser triangulation method with a high-precision CMOS sensor, so that its measurement accuracy can reach more than 0.02mm. And the measured data is output to the AD module in the form of analog quantity, converted into digital quantity and then related calculations are performed.

[0035] Usually, the displacement sensor 14 is connected to an external industrial computer, and the industrial computer detects and calculates the data after obtaining it. Usually, the data points on different ceramic tile blanks can be distinguished by the conveying gap between different ceramic tile blanks, or the data points on different ceramic tile blanks can be distinguished according to the length of the ceramic tile blank and the conveying speed. Usually, the data of a single ceramic tile blank is equal to the length of the ceramic tile blank divided by the conveying speed and then multiplied by the sampling frequency. After distinguishing the data points of a single ceramic tile blank, the measuring points of each ceramic tile blank can be calculated to calculate the thickness, and the thickness data of a series of points of a single ceramic tile blank can be obtained. Then, the thickness data of a series of points are filtered and fitted to obtain the distribution data of the thickness of the ceramic tile blank, and the average value, maximum value and minimum value of the thickness data are compared to find out, and the average value, maximum value and minimum value are compared to determine whether the ceramic tile blank is qualified, and the basic thickness of the ceramic tile blank is obtained, and the working condition of the press can be obtained in time.

[0036] Of course, the present invention is not limited to the above-mentioned embodiments, and the combination of different features of the above-mentioned embodiments can also achieve good results. Those skilled in the art can also make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A plate detection device, characterized in that: The invention comprises a detection group, wherein the detection group comprises two detection components, wherein a plurality of displacement sensors (14) are arranged in each of the two detection components, wherein the displacement sensors (14) in different detection components correspond to each other one by one, wherein a gap passing through a plate is left between the two detection components, wherein the displacement sensors (14) in the two detection components are oriented toward the gap between the two detection components, wherein the two detection components comprise a shell (1), wherein a chamber for accommodating the displacement sensors (14) is arranged in the shell (1), wherein a gap (19) is arranged on the shell (1) at the gap position, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is arranged at a position of the gap, wherein each of the displacement sensors (14) is provided ... The displacement sensor (14) faces the gap (19); the shell (1) is connected to a blowing device for blowing air into the chamber; a baffle (16) for shielding the gap (19) is provided on the shell (1) at the position of the gap (19); a first end plate (2) and a second end plate (3) are provided at both ends of the detection group; the first end plate (2) is provided with a first opening (21) and a second opening (22) respectively connected to the chamber; the blowing device blows air into the chamber through the second opening (22); and the second end plate (3) is provided with a movable end cover (31).

2. The plate detection device according to claim 1, characterized in that: A guide rail (11) is provided in the housing (1), and each displacement sensor (14) is connected to the guide rail (11) via a slider (12).

3. The plate detection device according to claim 1, characterized in that: The housing (1) is provided with a cylinder (17), and the cylinder (17) drives the baffle (16) to move.

4. The plate material detection device according to claim 1, characterized in that: The number of displacement sensors (14) in the two detection components is 3 to 7.

5. The plate material detection device according to claim 4, characterized in that: Each of the displacement sensors (14) is a laser displacement sensor.

6. The plate material detection device according to any one of claims 1 to 5, characterized in that: The number of the detection groups is multiple.

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