Ceramic crucible inner bottom detection device

Abstract

The invention belongs to the field of detection equipment, and particularly relates to a ceramic crucible inner bottom detection device which comprises a vertical rod and a fixing assembly, a mounting seat is fixedly connected to the bottom end of the vertical rod, an intense light source is fixedly connected to the side face of the mounting seat, and the fixing assembly can fix a ceramic crucible; the device further comprises a tank body, the fixing assembly is installed in the tank body, a hydraulic cylinder is fixedly connected to the side face of the tank body, a top cover is fixedly connected to the output end of the hydraulic cylinder, and when the device is used, the hydraulic cylinder drives the top cover to move downwards, the intense light source is inserted into the ceramic crucible, the top cover blocks the top of the tank body, and the inner cover blocks the top of the ceramic crucible. A black box is formed between the top cover and the tank body, when a crack is formed in the ceramic crucible, light rays of the crack irradiate into the black box, the light sensor detects that the intensity of the internal light rays is increased, an electric signal is output to a worker, and by means of the arrangement, light leakage can be conveniently detected, and the influence of the external light rays on the detection effect is reduced.

Description

Technical Field

[0001] The invention relates to the field of detection equipment, in particular to a ceramic crucible inner bottom detection device. Background Art

[0002] Ceramic crucible is a large-sized crucible product. It is a container for carrying silicon liquid in the production of polycrystalline ingots. One ceramic crucible is consumed for each furnace of polycrystalline silicon ingots produced. Before production, it is particularly important to inspect the crucible.

[0003] In the current existing technology, the ceramic crucible inner bottom detection device is mainly composed of a frame, a strong light source, a support rod and an annular seat, wherein the ceramic crucible is placed inside the annular seat, the annular seat is used to fix the crucible, and the support rod is used to support the strong light source. The strong light source is inserted into the interior of the crucible, and the bottom of the crucible is irradiated by the strong light source. Then, by observing from the outside, whether there is a crack on the bottom of the crucible can be detected.

[0004] The existing Chinese patent with publication number CN217484162U discloses a ceramic crucible inner bottom detection device, which includes a bottom plate, the upper surface of which is fixedly connected with a conveyor belt and a support rod, the number of the support rods is at least four, the upper surfaces of at least four support rods are fixedly connected with a top plate, and the bottom of the top plate is fixedly connected with a telescopic mechanism for installing the detection mechanism; by arranging a conveyor belt and a top plate on the upper surface of the bottom plate, arranging a telescopic mechanism at the bottom of the top plate to install the detection mechanism, and arranging a placement seat on the upper surface of the conveyor belt to place the ceramic crucible, the telescopic mechanism can be used to adjust the position of the cover plate of the detection mechanism when in use so that it covers the ceramic crucible and turn on the carbon lamp at its bottom to irradiate the bottom of the ceramic crucible for the user to observe, thereby avoiding the flipping of the ceramic crucible and achieving the purpose of improving work efficiency.

[0005] When in use, a strong light source is extended into the crucible for illumination, but the outer surface of the crucible is exposed to the outside world, which is then disturbed by the external ambient light, making it difficult to observe the light leakage caused by small gaps, thus affecting the detection effect; therefore, a ceramic crucible inner bottom detection device is proposed to address the above problem. Summary of the invention

[0006] In order to solve the problem that when in use, a strong light source is extended into the crucible for illumination, but the outer surface of the crucible is exposed to the outside world and is further disturbed by the external ambient light, making it difficult to observe the light leakage caused by small gaps, thus affecting the detection effect, the present invention proposes a ceramic crucible inner bottom detection device.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a ceramic crucible inner bottom detection device described in the present invention comprises a vertical rod and a fixing assembly, the bottom end of the vertical rod is fixedly connected to a mounting seat, the side of the mounting seat is fixedly connected to a strong light source, and the fixing assembly can fix the ceramic crucible; it also includes a tank body, the fixing assembly is installed inside the tank body, the side of the tank body is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a top cover, the vertical rod is fixed to the middle part of the top cover, the middle part of the top cover is rotatably connected to an inner cover, the top cover can block the top of the tank body, and the inner cover can block the top of the ceramic crucible; the inside of the tank body is fixedly connected to a light sensor, and the light sensor can detect the light intensity inside the tank body.

[0008] Preferably, the fixing assembly includes an outer ring, an inner ring, an adjustment ring, a plurality of connecting rods and a plurality of supports, the outer ring is fixedly connected to the inside of the tank body, the inner ring is installed in the middle of the outer ring, the adjustment ring is rotatably connected to the top of the inner ring, the plurality of connecting rods are hinged on the inner side wall of the adjustment ring, the support is hinged at the end of the connecting rod, and an electric push rod is hinged between the inner ring and the adjustment ring.

[0009] Preferably, a servo motor is fixedly connected to the outer ring, a gear is fixedly connected to the output end of the servo motor, a gear ring is fixedly connected to the bottom of the inner ring, the gear and the gear ring are meshed with each other, and the inner ring and the outer ring are rotatably connected; the servo motor can drive the inner ring to rotate on the outer ring.

[0010] Preferably, a sealing airbag is fixedly connected to the bottom of the inner cover, a flexible air tube is fixedly connected to the sealing airbag, and the sealing airbag can seal the gap between the inner cover and the ceramic crucible after being inflated.

[0011] Preferably, a slide cylinder is fixedly connected to the side of the support, a support rod is fixedly connected to the inner wall of the inner ring at a position corresponding to the slide cylinder, the support rod is inserted into the slide cylinder and slidably connected thereto, guide rods are fixedly connected to both sides of the top cover, and the guide rods are slidably connected to the tank body.

[0012] Preferably, a strip laser is installed on the side of the mounting seat, and the strip laser can project a strip laser on the inner wall of the ceramic crucible. A plurality of second cameras are installed on the mounting seat, and a plurality of first cameras are installed on the bottom inner wall of the tank body.

[0013] Preferably, an air hole is provided inside the vertical rod, an air distribution seat is installed at the bottom end of the air hole, a cavity is provided inside the air distribution seat, a plurality of nozzles are fixedly connected to the air distribution seat, the nozzles are connected to the cavity, and the plurality of nozzles are distributed in a circular array.

[0014] Preferably, the air distribution seat is rotatably connected to the bottom end of the air hole, and an impeller is fixedly connected to the top of the cavity; when compressed air is injected into the air hole, the impeller can rotate under the action of the compressed air.

[0015] Preferably, a plurality of negative pressure tubes are fixedly connected to the top of the top cover.

[0016] Preferably, an air filter is fixedly connected to the top of the air hole, and the air filter can filter out dust in the compressed air.

[0017] The present invention is beneficial in that: 1. The present invention is provided with a top cover, a vertical rod, a strong light source, a hydraulic cylinder, a tank body and an inner cover. When in use, the fixing assembly fixes the ceramic crucible, the hydraulic cylinder drives the top cover to move downward, and then drives the vertical rod and the strong light source at the bottom to move downward, the strong light source is inserted into the interior of the ceramic crucible, and the top cover blocks the top of the tank body, the inner cover blocks the top of the ceramic crucible, and a black box is formed between the top cover and the tank body. When there is a crack on the ceramic crucible, its light shines into the black box, and then the light sensor detects that the light intensity inside increases, and outputs an electrical signal to the staff, so that the staff can conveniently perform detection, and the top cover and the tank body form a black box outside the ceramic crucible, so that it is convenient to detect light leakage and reduce the influence of external light on the detection effect; 2. The present invention is provided with a gear ring, a gear and a servo motor. When in use, the servo motor can drive the gear to rotate, and the gear meshes with the gear ring to drive the inner ring to rotate, so that the ceramic crucible in the middle of the inner ring rotates. When performing detection, the area directly irradiated by the strong light source can be changed by relying on the above-mentioned settings, thereby improving the detection accuracy and facilitating detection; 3. The present invention is provided with air holes, an air distribution seat and a plurality of nozzles. When in use, the air holes are connected to an air compressor, and the air compressor can inject compressed air into the air holes. The compressed air is then injected into the cavity inside the air distribution seat through the air holes, and then ejected through a plurality of nozzles. The inner wall of the ceramic crucible can be swept by the nozzles. When the vertical rod is inserted into the ceramic crucible, the inner wall of the ceramic crucible is swept and cleaned by the compressed air ejected from the nozzles, thereby reducing the interference caused by dust and foreign matter adhering to the inner wall of the ceramic crucible, and facilitating detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the tank body of the present invention; Figure 3 It is a schematic diagram of the top cover structure of the present invention; Figure 4 It is a schematic diagram of the gear ring structure of the present invention; Figure 5 It is a schematic diagram of the structure of the adjustment ring of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the end of the vertical rod of the present invention.

[0020] In the figure: 11, tank body; 12, hydraulic cylinder; 13, vertical rod; 14, inner cover; 15, strong light source; 16, first camera; 17, light sensor; 18, ceramic crucible; 19, top cover; 21, outer ring; 22, inner ring; 23, adjustment ring; 24, electric push rod; 25, connecting rod; 26, support; 31, servo motor; 32, gear; 33, gear ring; 41, sealing airbag; 42, flexible air pipe; 51, slide; 52, support rod; 53, guide rod; 61, strip laser; 62, second camera; 71, air hole; 72, air distribution seat; 73, nozzle; 8, impeller; 9, negative pressure pipe; 10, air filter. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0022] See also Figure 1 - Figure 6 As shown, a ceramic crucible inner bottom detection device comprises a vertical rod 13 and a fixing assembly, wherein the bottom end of the vertical rod 13 is fixedly connected to a mounting seat, a strong light source 15 is fixedly connected to the side of the mounting seat, and the fixing assembly can fix a ceramic crucible 18; it also comprises a tank body 11, the fixing assembly is installed inside the tank body 11, a hydraulic cylinder 12 is fixedly connected to the side of the tank body 11, a top cover 19 is fixedly connected to the output end of the hydraulic cylinder 12, the vertical rod 13 is fixedly connected to the middle part of the top cover 19, the middle part of the top cover 19 is rotatably connected to an inner cover 14, the top cover 19 can block the top of the tank body 11, and the inner cover 14 can block the top of the ceramic crucible 18; a light sensor 17 is fixedly connected to the inside of the tank body 11, and the light sensor 17 can detect the light intensity inside the tank body 11; When in use, the ceramic crucible 18 is hung on the fixing assembly, the fixing assembly fixes the ceramic crucible 18, and then the hydraulic cylinder 12 drives the top cover 19 to move downward, thereby driving the vertical rod 13 and the strong light source 15 at the bottom to move downward, and the strong light source 15 is inserted into the interior of the ceramic crucible 18, and the top cover 19 blocks the top of the tank body 11, and the inner cover 14 blocks the top of the ceramic crucible 18, and a black box is formed between the top cover 19 and the tank body 11. When there is a crack on the ceramic crucible 18, its light shines into the black box, and then the light sensor 17 detects that the internal light intensity increases and outputs an electrical signal to the staff, so that the staff can facilitate detection, and rely on the top cover 19 and the tank body 11 to form a black box outside the ceramic crucible 18, so that it is convenient to detect light leakage and reduce the influence of external light on the detection effect. The light sensor 17 is a mixture of one or more of TSL2591, BH1750, and APDS-9008.

[0023] Further, the fixing assembly includes an outer ring 21, an inner ring 22, an adjusting ring 23, a plurality of connecting rods 25 and a plurality of supports 26, the outer ring 21 is fixedly connected to the inside of the tank body 11, the inner ring 22 is installed in the middle of the outer ring 21, the adjusting ring 23 is rotatably connected to the top of the inner ring 22, the plurality of connecting rods 25 are hinged on the inner side wall of the adjusting ring 23, the supports 26 are hinged on the ends of the connecting rods 25, and an electric push rod 24 is hinged between the inner ring 22 and the adjusting ring 23; When in use, the electric push rod 24 can push the adjustment ring 23 to rotate within a certain range by means of its extension and retraction. The two ends of the connecting rod 25 are respectively hinged to the adjustment ring 23 and the support 26. The rotation of the adjustment ring 23 will push the support 26 through the connecting rod 25. The ceramic crucible 18 is installed on multiple supports 26. The adjusting ring 23 is used to synchronously push the support 26 to move, so as to adjust the distance between the multiple supports 26, so as to facilitate the support of multiple specifications of ceramic crucibles 18, thereby improving the scope of application and making it convenient for the staff to use it.

[0024] Furthermore, a servo motor 31 is fixedly connected to the outer ring 21, a gear 32 is fixedly connected to the output end of the servo motor 31, a gear ring 33 is fixedly connected to the bottom of the inner ring 22, the gear 32 and the gear ring 33 are meshed with each other, and the inner ring 22 and the outer ring 21 are rotatably connected; the servo motor 31 can drive the inner ring 22 to rotate on the outer ring 21; When in use, the servo motor 31 can drive the gear 32 to rotate, and the gear 32 engages with the gear ring 33 to drive the inner ring 22 to rotate, so that the ceramic crucible 18 in the middle of the inner ring 22 rotates. When performing detection, the above-mentioned setting can change the area directly irradiated by the strong light source 15, thereby improving the detection accuracy and facilitating the detection.

[0025] Furthermore, a sealing airbag 41 is fixedly connected to the bottom of the inner cover 14, and a flexible air tube 42 is fixedly connected to the sealing airbag 41. The sealing airbag 41 can seal the gap between the inner cover 14 and the ceramic crucible 18 after being inflated. During use, since a strong light source 15 is installed inside the ceramic crucible 18 and the top opening of the ceramic crucible 18 is relatively rough, it is difficult to ensure the sealing degree if it is sealed only by the inner cover 14, and light leakage may occur. Therefore, air is injected into the flexible air tube 42 by an air pump to inflate the sealing airbag 41. The sealing airbag 41 expands and fits against the inner wall of the ceramic crucible 18, thereby improving the sealing effect of the ceramic crucible 18 and reducing the occurrence of light leakage.

[0026] Furthermore, a slide cylinder 51 is fixedly connected to the side of the support 26, a support rod 52 is fixedly connected to the inner wall of the inner ring 22 at a position corresponding to the slide cylinder 51, the support rod 52 is inserted into the slide cylinder 51 and slidably connected thereto, and guide rods 53 are fixedly connected to both sides of the top cover 19, and the guide rods 53 are slidably connected to the tank body 11; When in use, the support rod 52 can slide on the slide cylinder 51. The support rod 52 and the slide cylinder 51 can improve the support and movement stability of the support 26, so that the ceramic crucible 18 can be easily fixed. The guide rod 53 is set to slide on the tank body 11, and the guide rod 53 can support the top cover 19, thereby improving the stability of the top cover 19.

[0027] Furthermore, a strip laser 61 is installed on the side of the mounting seat, and the strip laser 61 can project a strip laser on the inner wall of the ceramic crucible 18. A plurality of second cameras 62 are installed on the mounting seat, and a plurality of first cameras 16 are installed on the inner side wall of the bottom of the tank body 11. When in use, the strip laser 61 can project a strip laser onto the inner wall of the ceramic crucible 18. When the ceramic crucible 18 rotates, the strip laser scans the inner wall of the ceramic crucible 18. If there are defects such as protrusions and pits on the inner wall of the ceramic crucible 18, the strip laser will be distorted when viewed from the side. The strip laser is monitored by the second camera 62, so defects on the inner wall of the ceramic crucible 18 can be easily detected, making it convenient for staff to use.

[0028] Furthermore, an air hole 71 is provided inside the vertical rod 13, and an air distribution seat 72 is installed at the bottom end of the air hole 71. A cavity is provided inside the air distribution seat 72, and a plurality of nozzles 73 are fixedly connected to the air distribution seat 72. The nozzles 73 are connected to the cavity, and the plurality of nozzles 73 are distributed in a ring array. When in use, the air hole 71 is connected to an air compressor, which can inject compressed air into the air hole 71, and then the compressed air is injected into the cavity inside the air distribution seat 72 through the air hole 71, and then sprayed out through multiple nozzles 73. The inner wall of the ceramic crucible 18 can be blown clean by the nozzles 73. During the process of inserting the vertical rod 13 into the ceramic crucible 18, the inner wall of the ceramic crucible 18 is blown clean by the compressed air sprayed from the nozzles 73, so as to reduce the interference caused by dust and foreign matter adhering to the inner wall of the ceramic crucible 18 and facilitate detection.

[0029] Furthermore, a plurality of negative pressure tubes 9 are fixedly connected to the top of the top cover 19; an air filter 10 is fixedly connected to the top of the air hole 71, and the air filter 10 can filter out dust in the compressed air; When in use, the negative pressure tube 9 is connected to an exhaust fan. During the cleaning process of blowing compressed air from the nozzle 73, the negative pressure tube 9 extracts the dust-containing air inside, thereby reducing the air inside the ceramic crucible 18. An air filter 10 is fixed to the top of the air hole 71, which can filter the air blown into the ceramic crucible 18. After turning off the strong light source 15, a black box is formed inside the ceramic tank body 11, emitting strip lasers. If there is a lot of dust in the air, the laser will be scattered, affecting the observation of the second camera 62. Embodiment 2

[0030] See also Figure 6 As shown, comparative example 1 is another implementation mode of the present invention, the air distribution seat 72 and the bottom end of the air hole 71 are rotatably connected, and the top of the cavity is fixedly connected to the impeller 8; when compressed air is injected into the air hole 71, the impeller 8 can rotate under the action of the compressed air; relying on the above arrangement, the rotation of the impeller 8 will drive the air distribution seat 72 to rotate, thereby driving the rotation of multiple air nozzles, thereby increasing the cleaning area of ​​the inner wall of the ceramic crucible 18, thereby improving the cleaning effect and reducing cleaning dead corners.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A ceramic crucible inner bottom detection device, comprising a vertical rod (13) and a fixing assembly, wherein the bottom end of the vertical rod (13) is fixedly connected to a mounting seat, a side of the mounting seat is fixedly connected to a strong light source (15), and the fixing assembly is capable of fixing the ceramic crucible (18); characterized in that: It also comprises a tank body (11), the fixing assembly is installed inside the tank body (11), a hydraulic cylinder (12) is fixedly connected to the side of the tank body (11), an output end of the hydraulic cylinder (12) is fixedly connected to a top cover (19), the vertical rod (13) is fixedly connected to the middle of the top cover (19), the middle of the top cover (19) is rotatably connected to an inner cover (14), the top cover (19) is capable of blocking the top of the tank body (11), and the inner cover (14) is capable of blocking the top of the ceramic crucible (18); A light sensor (17) is fixedly connected inside the tank body (11), and the light sensor (17) is capable of detecting the light intensity inside the tank body (11).

2. A ceramic crucible inner bottom detection device according to claim 1, characterized in that: The fixing assembly comprises an outer ring (21), an inner ring (22), an adjusting ring (23), a plurality of connecting rods (25) and a plurality of supports (26); the outer ring (21) is fixedly connected to the inside of the tank body (11); the inner ring (22) is installed in the middle of the outer ring (21); the adjusting ring (23) is rotatably connected to the top of the inner ring (22); the plurality of connecting rods (25) are hinged on the inner side wall of the adjusting ring (23); the supports (26) are hinged on the ends of the connecting rods (25); and an electric push rod (24) is hinged between the inner ring (22) and the adjusting ring (23).

3. A ceramic crucible inner bottom detection device according to claim 2, characterized in that: A servo motor (31) is fixedly connected to the outer ring (21); a gear (32) is fixedly connected to the output end of the servo motor (31); a gear ring (33) is fixedly connected to the bottom of the inner ring (22); the gear (32) and the gear ring (33) are meshed with each other; the inner ring (22) and the outer ring (21) are rotatably connected; the servo motor (31) can drive the inner ring (22) to rotate on the outer ring (21).

4. A ceramic crucible inner bottom detection device according to claim 1, characterized in that: A sealing airbag (41) is fixedly connected to the bottom of the inner cover (14), a flexible air tube (42) is fixedly connected to the sealing airbag (41), and the sealing airbag (41) is capable of sealing the gap between the inner cover (14) and the ceramic crucible (18) after being inflated.

5. The device for detecting the inner bottom of a ceramic crucible according to claim 2, characterized in that: A slide cylinder (51) is fixedly connected to the side surface of the support (26), a support rod (52) is fixedly connected to the inner wall of the inner ring (22) at a position corresponding to the slide cylinder (51), the support rod (52) is inserted into the slide cylinder (51) and is slidably connected thereto, and guide rods (53) are fixedly connected to both sides of the top cover (19), and the guide rods (53) are slidably connected to the tank body (11).

6. A ceramic crucible inner bottom detection device according to claim 1, characterized in that: A strip laser (61) is mounted on the side of the mounting seat, and the strip laser (61) is capable of projecting strip laser light onto the inner wall of the ceramic crucible (18). A plurality of second cameras (62) are mounted on the mounting seat, and a plurality of first cameras (16) are mounted on the inner wall of the bottom of the tank body (11).

7. A ceramic crucible inner bottom detection device according to claim 1, characterized in that: An air hole (71) is provided inside the vertical rod (13); an air distribution seat (72) is installed at the bottom end of the air hole (71); a cavity is provided inside the air distribution seat (72); a plurality of nozzles (73) are fixedly connected to the air distribution seat (72); the nozzles (73) are connected to the cavity; and the plurality of nozzles (73) are distributed in a ring array.

8. A ceramic crucible inner bottom detection device according to claim 7, characterized in that: The air distribution seat (72) is rotatably connected to the bottom end of the air hole (71), and the top of the cavity is fixedly connected to an impeller (8); when compressed air is injected into the air hole (71), the impeller (8) can rotate under the action of the compressed air.

9. A ceramic crucible inner bottom detection device according to claim 8, characterized in that: A plurality of negative pressure tubes (9) are fixedly connected to the top of the top cover (19).

10. The device for detecting the inner bottom of a ceramic crucible according to claim 8, characterized in that: An air filter (10) is fixedly connected to the top end of the air hole (71), and the air filter (10) is capable of filtering out dust in the compressed air.

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