A method for detecting cracks and notches in household ceramics by the water immersion method

Abstract

The present invention discloses a method for detecting cracks and notches in daily-use ceramics by the water immersion method, which relates to the technical field of ceramic crack detection. It makes the water in the middle cylinder show a tendency to move towards the side of the ceramic pot from the edge, enhancing the fluidity of the water in the middle cylinder. Since the water flow is from the edge to the center, the water flow direction is always towards the side of the ceramic pot. If there is a crack in the ceramic pot, the water flowing towards the crack can easily penetrate through the crack into the interior of the ceramic pot. Because the moving water has greater pressure and fluidity, it can more easily penetrate into the crack, shortening the soaking time of the ceramic pot in water and accelerating the detection efficiency. The two clamping members are used to bear the force originally exerted on the two first electric push rods by the gravity of the annular piston plate, reducing the force-bearing time of the first electric push rods. At the same time, during the elongation process of the second electric push rod, it will drive the third rack to descend and drive the second gear to rotate, causing the clamping members to move out of the card slots, thus releasing the fixation of the annular piston plate.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic crack detection, and particularly to a method for detecting cracks and notches in daily-use ceramics by the water immersion method. Background Art

[0002] After the production of daily-use ceramic jars, it is necessary to detect whether there are cracks or notches on their surfaces. The water immersion method is a common method for detecting cracks and notches in daily-use ceramics. The detection steps for daily-use ceramic jars are as follows: seal the upper port of the ceramic jar, clamp the ceramic jar with mechanical claws, and then put it into a water tank so that the ceramic jar is completely immersed in it. Observe whether there are bubbles emerging or signs of water infiltration on the article, which may be an indication of cracks or notches, because water can enter the interior of the ceramic through these openings. Pay attention to observing whether there are signs of leakage or infiltration into the article in the water, which may indicate that there are cracks or notches in the ceramic article. Then take the ceramic jar out of the water and observe whether there is liquid entering its interior;

[0003] However, in the actual detection process, since the opening of the notch is larger than that of the crack, it is easier for water to enter the interior of the ceramic jar through the notch. However, the gap of the crack is small, and it is generally difficult for water to enter. Moreover, the water in the water tank is still water without fluidity. Therefore, the water does not have enough pressure and fluidity to penetrate the crack and enter the interior of the ceramic. In order to avoid the situation of misjudgment caused by the difficulty of water penetrating the crack into the ceramic jar in a short time, it is necessary to increase the time of the ceramic jar in the water to allow enough time for water to penetrate the crack. However, this method will result in a long overall detection time and thus low detection efficiency. Therefore, those skilled in the art have proposed a method for detecting cracks and notches in daily-use ceramics by the water immersion method. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a method for detecting cracks and notches in daily-use ceramics by the water immersion method, which solves the problems in the above background.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A method for detecting cracks and notches in daily-use ceramics by the water immersion method, including a detection pool in the shape of a cylinder with an open upper end. An intermediate cylinder is installed on the inner bottom surface of the detection pool. A number of uniformly distributed annular pipes are arranged inside the side wall of the intermediate cylinder. A number of uniformly distributed water outlets extending to the inner side surface of the intermediate cylinder are installed on the side surface of each annular pipe. An input pipe is also installed on the side surface of each annular pipe. The other end of each input pipe extends to the bottom of the intermediate cylinder and protrudes from the outer side surface of the intermediate cylinder, and the lower ends of all the input pipes are at the same height. An annular piston plate adapted to it is slidably arranged outside the intermediate cylinder inside the detection pool. A number of uniformly distributed rectangular through slots are opened on the upper surface of each annular piston plate. A cavity is opened on one side of each rectangular through slot inside the annular piston plate. A first gear is rotatably installed at the center of the inner wall of each cavity close to the rectangular through slot. One end of each first gear extends into the corresponding rectangular through slot and is installed with a rectangular plate whose side surface is rotatably connected to the inner wall of the rectangular through slot. The length and width of the rectangular plate are the same as those of the rectangular through slot. An activity plate is arranged on one side of the first gear inside each cavity. A first rack meshing with the first gear is installed on the side surface of each activity plate. An extension rod extending outside the annular piston plate is installed at the center of the upper surface of each activity plate. The upper ends of all the extension rods are jointly installed with an annular plate on the side surface of the intermediate cylinder. Two mounting plates are correspondingly installed at the upper port of the detection pool. A first electric push rod is installed on the upper surface of each mounting plate. The telescopic arm of each first electric push rod penetrates through the mounting plate and is fixedly connected to the annular plate.

[0006] As a further technical solution of the present invention, an L-shaped plate is installed on one side of the two mounting plates at the upper port of the detection pool. A second electric push rod is installed on the upper surface of the L-shaped plate directly above the intermediate cylinder. The telescopic arm of the second electric push rod penetrates through the L-shaped plate and is installed with a metal sealing plate. A round rod is installed at the center of the lower surface of the metal sealing plate. A cross-shaped frame is installed at the lower end of the round rod. A suction cup is installed at each end of the cross-shaped frame.

[0007] As a further technical solution of the present invention, an air pipe is buried inside the round rod, and a multi-way pipe is buried inside the air pipe. The input end of the multi-way pipe extends into the round rod and is communicated with the air pipe. Each branch port of the multi-way pipe is communicated with the nearest suction cup. A negative pressure generator is installed on the upper surface of the L-shaped plate on one side of the second electric push rod. The other end of the air pipe extends outside the round rod, penetrates through the metal sealing plate and is installed with a telescopic pipe. The other end of the telescopic pipe penetrates through the L-shaped plate and is communicated with the input pipe of the negative pressure generator.

[0008] As a further technical solution of the present invention, two fixing plates are correspondingly installed on one side of the side surface of the detection cell corresponding to one side of the annular piston plate. A slider is slidably installed on the upper surface of each fixing plate. A clamping groove is formed on one side of the side surface of the annular piston plate corresponding to each slider. A clamping member is installed on the side surface of each slider and extends through the side wall of the detection cell to the nearest clamping groove. A second gear is rotatably installed on the upper surface of each fixing plate on the other side of the slider. A second rack engaged with the second gear is installed on the other side surface of each slider.

[0009] As a further technical solution of the present invention, an opening is formed on the upper surface of each fixing plate on one side of the second rack. A mouth-shaped magnetic frame adapted to it is magnetically adsorbed on the side surface of the metal sealing plate. On both sides of the mouth-shaped magnetic frame above the fixing plate, strip-shaped plates slidable on the first electric push rod are installed. A vertical plate is installed at the end of each strip-shaped plate directly above the corresponding opening below. A third rack adapted to the second gear is installed at the lower end of each vertical plate.

[0010] As a further technical solution of the present invention, a first output pipe is installed near the lower end on the side surface of the detection cell. A first solenoid valve is installed on the first output pipe. A second output pipe is installed at the center of the lower surface of the detection cell. A second solenoid valve is provided on the second output pipe.

[0011] Specifically, it includes the following steps:

[0012] S1. Inject a certain amount of water into the detection cell and the middle cylinder, so that the water levels in the two are the same and higher than the uppermost annular pipe. The daily-use ceramic pot is directly sleeved on the outside of the round rod from the port, so that the four suction cups contact the inner bottom surface of the ceramic pot, and the metal sealing plate just covers the port of the ceramic pot to seal its port. Then the negative pressure generator operates to generate negative pressure inside each suction cup, and then the ceramic pot is fixed on the four suction cups;

[0013] S2. Then the second electric push rod extends to drive the metal sealing plate and the four suction cups to descend. The four descending suction cups drive the ceramic pot to descend into the water in the middle cylinder and make the ceramic pot at the middle height of the middle cylinder. At the same time, the descending metal sealing plate will drive the mouth-shaped magnetic frame and the two strip-shaped plates to descend magnetically. The two descending strip-shaped plates pass through; the two vertical plates drive the two third racks to descend. When each descending third rack meshes with the corresponding second gear below, the descending third rack will drive the second gear to rotate. The rotating second gear will drive the second rack to move. The moving second rack drives the clamping member to move out of the clamping groove through the slider, and then the fixation of the annular piston plate is released. Then, due to the limitation of the mounting plate, the two strip-shaped plates stop descending. After that, the continuously descending metal sealing plate is separated from the mouth-shaped magnetic frame;

[0014] S3. After the ceramic pot reaches the middle of the middle cylinder, all the first electric push rods extend to drive the annular plate to descend. The descending annular plate drives the movable plate to descend through each extension rod. Each descending movable plate drives the corresponding first gear to rotate 90 degrees through the first rack. The rotating first gear drives the rectangular plate connected to it to rotate 90 degrees, so that the rectangular plate blocks the rectangular through slot. Thus, all the rectangular through slots on the annular piston plate are closed. After all the descending movable plates contact the inner bottom surface of the cavity, the descending annular plate drives the annular piston plate to descend. The descending annular piston plate squeezes the water below it and sends it into each annular pipe through each input pipe, and then sprays it out from each water outlet.

[0015] S4. Since the water outlets on each annular pipe are annularly distributed, the water in all the annular pipes is sprayed towards the center of the middle cylinder through each water outlet. And the ceramic pot is exactly at the center of the middle of the middle cylinder, so that the water in the middle cylinder moves from the edge to the side of the ceramic pot in the center, enhancing the fluidity of the water in the middle cylinder. Since the water flow is from the edge to the center, the water flow direction is always towards the side of the ceramic pot. If the ceramic pot has cracks, the water flowing towards the cracks can easily penetrate through the cracks into the interior of the ceramic pot, shortening the soaking time of the ceramic pot in water and accelerating the detection efficiency.

[0016] S5. After the water sprayed from the annular pipes below the ceramic pot converges in the center, due to the continuous convergence and increase of the water, an upward water flow appears. The upward water flow can be used to impact the lower surface of the ceramic pot to detect the lower surface of the ceramic pot. Since the water level in the middle cylinder continuously rises, it then returns to the detection pool above the annular piston plate through the port of the middle cylinder.

[0017] S6. Then the first electric push rod shortens and drives all the movable plates to rise through the above operations. The rising movable plates drive the first gear to rotate through the first rack. The rotating first gear drives the rectangular plate to rotate 90 degrees to open each rectangular through slot. When the movable plate contacts the inner top surface of the cavity, the rising annular plate will drive the annular piston plate to rise. Since each rectangular through slot is opened, during the rising process of the annular piston plate, the water above the annular piston plate reaches below the annular piston plate through the rectangular through slot until the position of the annular piston plate is restored. At this time, each clamping part is exactly aligned with the corresponding clamping slot on the annular piston plate.

[0018] S7. Subsequently, the second electric push rod shortens to drive the metal sealing plate, the suction cup and the ceramic pot to rise. The rising ceramic pot is separated from the water in the middle cylinder. When the rising metal sealing plate reaches the same height as the U-shaped magnetic frame, due to the magnetic force, the U-shaped magnetic frame is adsorbed on the metal sealing plate. The rising metal sealing plate drives the U-shaped magnetic frame to rise. The rising U-shaped magnetic frame drives the two third racks to rise through the above operations. Each rising third rack drives the second gear to reverse, and drives the clamping member to move reversely and insert into the corresponding card slot through the rising operation to fix the annular piston plate. After the second electric push rod is shortened to the shortest, the staff holds the ceramic pot by hand, releases the negative pressure in each suction cup through the negative pressure generator, releases the fixation of the ceramic pot, and removes the ceramic pot to observe whether there is liquid inside to check whether there are cracks. Beneficial effects

[0019] The present invention provides a method for detecting cracks and notches in daily-use ceramics by the water immersion method. Compared with the prior art, it has the following beneficial effects:

[0020] 1. In a method for detecting cracks and notches in daily-use ceramics by the water immersion method, after the ceramic pot enters the middle of the middle cylinder, the piston plate with the rectangular through groove closed descends to squeeze the water below, and the water is sent into each annular pipe through each input pipe, and then sprayed out from each water outlet. Since the water outlets on each annular pipe are annularly distributed, the water in all the annular pipes is sprayed towards the center of the middle cylinder through each water outlet. And the ceramic pot is exactly at the center of the middle of the middle cylinder, making the water in the middle cylinder show a tendency to move from the edge to the side of the ceramic pot in the center, enhancing the fluidity of the water in the middle cylinder. Since the water flow is from the edge to the center, the water flow direction is always towards the side of the ceramic pot. If the ceramic pot has a crack, the water flowing towards the crack can easily penetrate through the crack into the interior of the ceramic pot. Because the flowing water has greater pressure and fluidity, it can more easily penetrate into the crack, shortening the soaking time of the ceramic pot in water, accelerating the detection efficiency. At the same time, the water in the middle cylinder shows a tendency to move from the edge to the center, and the situation where the water flow direction is tangent to the side of the ceramic pot and the water is difficult to enter the crack will not occur. And the annular piston plate is fixed by using two clamping members to be inserted into the card slots, and the two clamping members are used to bear the force originally exerted on the two first electric push rods by the gravity of the annular piston plate, reducing the force-bearing time of the first electric push rods and increasing their service life. At the same time, when the second electric push rod extends, it will drive the third rack to descend and drive the second gear to rotate so that the clamping member moves out of the card slot, thus releasing the fixation of the annular piston plate. When the second electric push rod shortens, it will drive the two third racks to rise, drive the second gear to flip, and make the clamping member be inserted into the card slot through the above operations to fix the annular piston plate again. Description of the drawings

[0021] Figure 1 It is a schematic structural diagram of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0022] Figure 2 is Figure 1 The enlarged view of part B in

[0023] Figure 3 is the cross-sectional view of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0024] Figure 4 is Figure 3 The enlarged view of part A in

[0025] Figure 5 is Figure 3 The enlarged view of part C in

[0026] Figure 6 is the working state diagram of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0027] Figure 7 is the schematic structural diagram of the middle cylinder assembly of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0028] Figure 8 is the schematic structural diagram of the water spraying assembly of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0029] Figure 9 is the schematic structural diagram of the piston plate assembly of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0030] Figure 10 is the schematic internal structure diagram of the piston plate assembly of a method for detecting cracks and notches in daily-use ceramics by the water immersion method;

[0031] Figure 11 is the schematic structural diagram of the annular plate and its surface assembly of a method for detecting cracks and notches in daily-use ceramics by the water immersion method.

[0032] In the figure: 1, detection pool; 2, middle cylinder; 3, annular pipe; 4, water outlet; 5, input pipe; 6, annular piston plate; 7, rectangular through groove; 8, cavity; 9, rectangular plate; 10, first gear; 11, movable plate; 12, first rack; 13, extension rod; 14, annular plate; 15, mounting plate; 16, first electric push rod; 17, L-shaped plate; 18, second electric push rod; 19, metal sealing plate; 20, round rod; 21, cross-shaped frame; 22, suction cup; 23, air pipe; 24, multi-way pipe; 25, negative pressure generator; 26, telescopic pipe; 27, mouth-shaped magnetic frame; 28, strip-shaped plate; 29, fixed plate; 30, slider; 31, card slot; 32, card part; 33, second gear; 34, second rack; 35, opening; 36, vertical plate; 37, third rack; 38, first output pipe; 39, first solenoid valve; 40, second output pipe; 41, second solenoid valve. Detailed implementation mode

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1-11, the present invention provides a method for detecting cracks and notches in daily-use ceramics by the water immersion method. Technical solution: A method for detecting cracks and notches in daily-use ceramics by the water immersion method includes a detection pool 1 that is cylindrical and has an open upper end. A middle cylinder 2 is installed on the inner bottom surface of the detection pool 1. A number of evenly distributed annular pipes 3 are arranged inside the side wall of the middle cylinder 2. A number of evenly distributed water outlets 4 that extend to the inner side surface of the middle cylinder 2 are installed on the side surface of each annular pipe 3. An input pipe 5 is also installed on the side surface of each annular pipe 3. The other end of each input pipe 5 extends to the bottom of the middle cylinder 2 and protrudes from the outer side surface of the middle cylinder 2, and the lower ends of all the input pipes 5 are at the same height. An annular piston plate 6 that is adapted to it is slidably arranged outside the middle cylinder 2 inside the detection pool 1. A number of evenly distributed rectangular through slots 7 are opened on the upper surface of each annular piston plate 6. A cavity 8 is opened on one side of each rectangular through slot 7 inside the annular piston plate 6. A first gear 10 is rotatably installed at the center of the inner wall of each cavity 8 close to the rectangular through slot 7. One end of each first gear 10 extends into the corresponding rectangular through slot 7 and is installed with a rectangular plate 9 whose side surface is rotatably connected to the inner wall of the rectangular through slot 7. The length and width of the rectangular plate 9 are the same as those of the rectangular through slot 7. An activity plate 11 is arranged on one side of the first gear 10 inside each cavity 8. A first rack 12 that meshes with the first gear 10 is installed on the side surface of each activity plate 11. An extension rod 13 that extends outside the annular piston plate 6 is installed at the center of the upper surface of each activity plate 11. The upper ends of all the extension rods 13 are jointly installed with an annular plate 14 on the side surface of the middle cylinder 2. Two mounting plates 15 are correspondingly installed at the upper port of the detection pool 1. A first electric push rod 16 is installed on the upper surface of each mounting plate 15. The telescopic arm of each first electric push rod 16 penetrates through the mounting plate 15 and is fixedly connected to the annular plate 14. When in use, all the first electric push rods 16 extend to drive the annular plate 14 to descend. The descending annular plate 14 drives the activity plates 11 to descend through the respective extension rods 13. Each descending activity plate 11 drives the corresponding first gear 10 to rotate by 90 degrees through the first rack 12. The rotating first gear 10 drives the rectangular plate 9 connected to it to rotate by 90 degrees, so that the rectangular plate 9 blocks the rectangular through slot 7, and thus all the rectangular through slots 7 on the annular piston plate 6 are all closed. After all the descending activity plates 11 contact the inner bottom surface of the cavity 8, the descending annular plate 14 drives the annular piston plate 6 to descend. The descending annular piston plate 6 squeezes the water below it and sends it into each annular pipe 3 through the respective input pipes 5, and then sprays out from each water outlet 4.

[0035] Please refer to Figures 1-6, on one side of two mounting plates 15, an L-shaped plate 17 is installed at the upper port of the detection cell 1. On the upper surface of the L-shaped plate 17, a second electric push rod 18 is installed directly above the middle cylinder 2. The telescopic arm of the second electric push rod 18 penetrates through the L-shaped plate 17 and is installed with a metal sealing plate 19. At the center of the lower surface of the metal sealing plate 19, a round rod 20 is installed. At the lower end of the round rod 20, a cross-shaped frame 21 is installed. Each end of the cross-shaped frame 21 is installed with a suction cup 22. An air pipe 23 is embedded in the round rod 20, and a multi-way pipe 24 is embedded in the air pipe 23. The input end of the multi-way pipe 24 extends into the round rod 20 and is communicated with the air pipe 23. Each branch port of the multi-way pipe 24 is communicated with the nearest suction cup 22. On the upper surface of the L-shaped plate 17, a negative pressure generator 25 is installed on one side of the second electric push rod 18. The other end of the air pipe 23 extends outside the round rod 20, penetrates through the metal sealing plate 19, and is installed with a telescopic pipe 26. The other end of the telescopic pipe 26 penetrates through the L-shaped plate 17 and is communicated with the input pipe of the negative pressure generator 25. When in use, the daily-use ceramic pot is directly sleeved on the outside of the round rod 20 from the port, so that the four suction cups 22 contact the inner bottom surface of the ceramic pot, and the metal sealing plate 19 just covers the port of the ceramic pot to seal its port. Then the negative pressure generator 25 operates to generate negative pressure inside each suction cup 22, and thus the ceramic pot is fixed on the four suction cups 22. Then the second electric push rod 18 extends to drive the metal sealing plate 19 and the four suction cups 22 to descend. The four descending suction cups 22 drive the ceramic pot to descend into the water in the middle cylinder 2 and make the ceramic pot at the middle height of the middle cylinder 2.

[0036] Please refer to Figure 1 , Figures 3-4On one side of the side surface of the detection cell 1, two fixed plates 29 are correspondingly installed on one side of the annular piston plate 6. On the upper surface of each fixed plate 29, a slider 30 is slidably installed. On the side surface of the annular piston plate 6, a clamping groove 31 is formed on one side of each slider 30. On the side surface of each slider 30, a clamping member 32 is installed which penetrates the side wall of the detection cell 1 and extends into the nearest clamping groove 31. On the upper surface of each fixed plate 29, a second gear 33 is rotatably installed on the other side of the slider 30. On the other side surface of each slider 30, a second rack 34 meshing with the second gear 33 is installed. On the upper surface of each fixed plate 29, an opening 35 is formed on one side of the second rack 34. On the side surface of the metal sealing plate 19, a mouth-shaped magnetic frame 27 adapted to it is magnetically adsorbed. On both sides of the mouth-shaped magnetic frame 27 above the fixed plate 29, a strip-shaped plate 28 sliding on the first electric push rod 16 is installed. At the lower end of each strip-shaped plate 28, a vertical plate 36 is installed directly above the corresponding opening 35. At the lower end of each vertical plate 36, a third rack 37 adapted to the second gear 33 is installed. When in use, the descending metal sealing plate 19 will drive the mouth-shaped magnetic frame 27 and the two strip-shaped plates 28 to descend by magnetism. The two descending strip-shaped plates 28 pass through; the two vertical plates 36 drive the two third racks 37 to descend. When each descending third rack 37 meshes with the corresponding second gear 33 below, the descending third rack 37 will drive the second gear 33 to rotate. The rotating second gear 33 will drive the second rack 34 to move. The moving second rack 34 drives the clamping member 32 to move out of the clamping groove 31 through the slider 30, thus releasing the fixation of the annular piston plate 6. Then, due to the limitation of the mounting plate 15, the two strip-shaped plates 28 stop descending. After that, the continuously descending metal sealing plate 19 is separated from the mouth-shaped magnetic frame 27.

[0037] Please refer to Figure 1 , near the lower end of the side surface of the detection cell 1, a first output pipe 38 is installed. A first solenoid valve 39 is installed on the first output pipe 38. At the center of the lower surface of the detection cell 1, a second output pipe 40 is installed. A second solenoid valve 41 is arranged on the second output pipe 40. After detection, the first solenoid valve 39 and the second solenoid valve 41 are opened, and the water in the detection cell 1 and the middle cylinder 2 is discharged through the first output pipe 38 and the second output pipe 40.

[0038] Specifically, it includes the following steps:

[0039] S1. Inject a certain amount of water into the detection cell 1 and the middle cylinder 2, so that the water levels in the two are the same and higher than the uppermost annular pipe 3. The daily-use ceramic pot is directly sleeved on the outside of the round rod 20 from the port, so that the four suction cups 22 contact the inner bottom surface of the ceramic pot, and the metal sealing plate 19 just covers the port of the ceramic pot to seal its port. Then, the negative pressure generator 25 operates to generate negative pressure inside each suction cup 22, and thus the ceramic pot is fixed on the four suction cups 22;

[0040] S2. Subsequently, the second electric push rod 18 extends to drive the metal sealing plate 19 and the four suction cups 22 to descend. The four descending suction cups 22 drive the ceramic pot to descend into the water in the middle cylinder 2 and position the ceramic pot at the middle height of the middle cylinder 2. At the same time, the descending metal sealing plate 19 will drive the mouth-shaped magnetic frame 27 and the two strip plates 28 to descend through magnetism. The two descending strip plates 28 pass through; the two vertical plates 36 drive the two third racks 37 to descend. When each descending third rack 37 meshes with the corresponding second gear 33 below, the descending third rack 37 will drive the second gear 33 to rotate. The rotating second gear 33 will drive the second rack 34 to move. The moving second rack 34 drives the clamping member 32 to move out of the card slot 31 through the slider 30, thus releasing the fixation of the annular piston plate 6. Subsequently, due to the limitation of the mounting plate 15, the two strip plates 28 stop descending. After that, the descending metal sealing plate 19 disengages from the mouth-shaped magnetic frame 27;

[0041] S3. When the ceramic pot is at the middle of the middle cylinder 2, all the first electric push rods 16 extend to drive the annular plate 14 to descend. The descending annular plate 14 drives the movable plate 11 to descend through the respective extension rods 13. Each descending movable plate 11 drives the corresponding first gear 10 to rotate 90 degrees through the first rack 12. The rotating first gear 10 drives the rectangular plate 9 connected thereto to rotate 90 degrees, so that the rectangular plate 9 blocks the rectangular through slot 7. Thus, all the rectangular through slots 7 on the annular piston plate 6 are closed. After all the descending movable plates 11 contact the inner bottom surface of the cavity 8, the descending annular plate 14 drives the annular piston plate 6 to descend. The descending annular piston plate 6 squeezes the water below it, which is sent into the respective annular pipes 3 through the respective input pipes 5 and then sprayed out from the respective water outlets 4.

[0042] S4. Since the water outlets 4 on each annular pipe 3 are annularly distributed, the water in all the annular pipes 3 is sprayed towards the center of the middle cylinder 2 through the respective water outlets 4. And the ceramic pot is exactly at the center of the middle of the middle cylinder 2, causing the water in the middle cylinder 2 to move from the edge to the side of the ceramic pot in the center, enhancing the fluidity of the water in the middle cylinder 2. Since the water flow is from the edge to the center, the water flow direction is always towards the side of the ceramic pot. If the ceramic pot has cracks, the water flowing towards the cracks can easily penetrate through the cracks into the interior of the ceramic pot, shortening the soaking time of the ceramic pot in water and accelerating the detection efficiency;

[0043] S5. After the water sprayed from the annular pipes 3 below the ceramic pot converges in the center, due to the continuous convergence and increase of the water, an upward water flow appears. The upward water flow can be used to impact the lower surface of the ceramic pot to detect the lower surface of the ceramic pot. Since the water in the middle cylinder 2 continuously increases and the liquid level rises, it then returns to the detection pool 1 through the port of the middle cylinder 2 and is above the annular piston plate 6;

[0044] S6. Subsequently, the first electric push rod 16 shortens to drive all the movable plates 11 to rise through the above operations. The rising movable plates 11 drive the first gear 10 to rotate through the first rack 12. The rotating first gear 10 drives the rectangular plate 9 to rotate by 90 degrees to open each rectangular through slot 7. When the movable plate 11 contacts the inner top surface of the cavity 8, the rising annular plate 14 will drive the annular piston plate 6 to rise. Since each rectangular through slot 7 is opened, during the rising process of the annular piston plate 6, the water above the annular piston plate 6 reaches below the annular piston plate 6 through the rectangular through slot 7 until the position of the annular piston plate 6 is restored. At this time, each clamping member 32 is exactly aligned with the corresponding card slot 31 on the annular piston plate 6.

[0045] S7. Subsequently, the second electric push rod 18 shortens to drive the metal sealing plate 19, the suction cups 22 and the ceramic pot to rise. The rising ceramic pot is separated from the water in the middle cylinder 2. When the rising metal sealing plate 19 reaches the same height as the mouth-shaped magnetic frame 27, due to the magnetic force, the mouth-shaped magnetic frame 27 is adsorbed on the metal sealing plate 19. The rising metal sealing plate 19 drives the mouth-shaped magnetic frame 27 to rise. The rising mouth-shaped magnetic frame 27 drives the two third racks 37 to rise through the above operations. Each rising third rack 37 drives the second gear 33 to reverse, and drives the clamping member 32 to move reversely and insert into the corresponding card slot 31 to fix the annular piston plate 6. After the second electric push rod 18 is shortened to the shortest, the staff holds the ceramic pot by hand, releases the negative pressure in each suction cup 22 through the negative pressure generator 25, releases the fixation of the ceramic pot, and removes the ceramic pot to observe whether there is liquid inside to check whether there are cracks.

Claims

1. An apparatus for detecting cracks and notches in daily-use ceramics by the water immersion method, comprising a detection tank (1) which is cylindrical and has an open upper end, characterized in that, The inner bottom surface of the detection cell (1) is provided with a middle cylinder (2). A number of annular tubes (3) evenly distributed are arranged inside the side wall of the middle cylinder (2). A number of water outlets (4) evenly distributed and extending to the inner side surface of the middle cylinder (2) are installed on the side surface of each annular tube (3). An input tube (5) is also installed on the side surface of each annular tube (3). The other end of each input tube (5) extends to the bottom of the middle cylinder (2) and protrudes from the outer side surface of the middle cylinder (2), and the lower ends of all the input tubes (5) are at the same height. An annular piston plate (6) adapted to it is slidably arranged outside the middle cylinder (2) inside the detection cell (1). A number of rectangular through slots (7) evenly distributed are opened on the upper surface of each annular piston plate (6). A cavity (8) is opened on one side of each rectangular through slot (7) inside the annular piston plate (6). A first gear (10) is rotatably installed at the center of the inner wall of each cavity (8) close to the rectangular through slot (7). One end of each first gear (10) extends into the corresponding rectangular through slot (7) and is provided with a rectangular plate (9) whose side surface is rotatably connected to the inner wall of the rectangular through slot (7). The length and width of the rectangular plate (9) are the same as those of the rectangular through slot (7). An active plate (11) is arranged on one side of the first gear (10) inside each cavity (8). A first rack (12) meshing with the first gear (10) is installed on the side surface of each active plate (11). An extension rod (13) extending outside the annular piston plate (6) is installed at the center of the upper surface of each active plate (11). The upper ends of all the extension rods (13) are jointly installed with an annular plate (14) on the side surface of the middle cylinder (2). Two mounting plates (15) are correspondingly installed at the upper port of the detection cell (1). A first electric push rod (16) is installed on the upper surface of each mounting plate (15). The telescopic arm of each first electric push rod (16) penetrates through the mounting plate (15) and is fixedly connected to the annular plate (14).

2. The device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 1, characterized in that, An L-shaped plate (17) is installed on one side of the two mounting plates (15) at the upper port of the detection cell (1). A second electric push rod (18) is installed on the upper surface of the L-shaped plate (17) directly above the middle cylinder (2). The telescopic arm of the second electric push rod (18) penetrates through the L-shaped plate (17) and is provided with a metal sealing plate (19). A round rod (20) is installed at the center of the lower surface of the metal sealing plate (19). A cross-shaped frame (21) is installed at the lower end of the round rod (20). A suction cup (22) is installed at each end of the cross-shaped frame (21).

3. The device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 2, characterized in that, A trachea (23) is embedded in the round rod (20), a multi-way pipe (24) is embedded in the trachea (23), the input end of the multi-way pipe (24) extends into the round rod (20) and communicates with the trachea (23), each branch port of the multi-way pipe (24) communicates with the nearest sucker (22), a negative pressure generator (25) is installed on the upper surface of the L-shaped plate (17) on one side of the second electric push rod (18), the other end of the trachea (23) extends outside the round rod (20), penetrates through the metal sealing plate (19) and is provided with a telescopic pipe (26), and the other end of the telescopic pipe (26) penetrates through the L-shaped plate (17) and communicates with the input pipe of the negative pressure generator (25).

4. A device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 3, characterized in that, Two fixing plates (29) are correspondingly installed on the side of the detection pool (1) on one side of the annular piston plate (6), a slider (30) is slidably installed on the upper surface of each fixing plate (29), a clamping groove (31) is formed on the side of the annular piston plate (6) on one side of each slider (30), a clamping member (32) that penetrates through the side wall of the detection pool (1) and extends into the nearest clamping groove (31) is installed on the side of each slider (30), a second gear (33) is rotatably installed on the upper surface of each fixing plate (29) on the other side of the slider (30), and a second rack (34) meshing with the second gear (33) is installed on the other side of each slider (30).

5. The device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 4, characterized in that, An opening (35) is formed on the upper surface of each fixing plate (29) on one side of the second rack (34), a mouth-shaped magnetic frame (27) adapted to it is magnetically adsorbed on the side of the metal sealing plate (19), strip-shaped plates (28) sliding on the first electric push rod (16) are installed above the fixing plate (29) on both sides of the mouth-shaped magnetic frame (27), a vertical plate (36) is installed at the lower end of the head of each strip-shaped plate (28) directly above the corresponding opening (35), and a third rack (37) adapted to the second gear (33) is installed at the lower end of each vertical plate (36).

6. The device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 5, characterized in that, A first output pipe (38) is installed near the lower end on the side of the detection pool (1), a first solenoid valve (39) is installed on the first output pipe (38), a second output pipe (40) is installed at the center of the lower surface of the detection pool (1), and a second solenoid valve (41) is arranged on the second output pipe (40).

7. The device for detecting cracks and notches in daily-use ceramics by the water immersion method according to claim 6, characterized in that, The method of this device specifically includes the following steps: S1. Inject a certain amount of water into the detection pool (1) and the middle cylinder (2) to make the water levels in the two the same and higher than the uppermost annular pipe (3). Just sleeved the daily-use ceramic pot from the port outside the round rod (20) so that the four suckers (22) contact the inner bottom surface of the ceramic pot, and the metal sealing plate (19) just covers the port of the ceramic pot to seal its port. Then the negative pressure generator (25) operates to generate negative pressure inside each sucker (22), and thus the ceramic pot is fixed on the four suckers (22). S2. Subsequently, the second electric push rod (18) extends to drive the metal sealing plate (19) and the four suction cups (22) to descend. The four descending suction cups (22) drive the ceramic pot to descend into the water in the middle cylinder (2) and position the ceramic pot at the middle height of the middle cylinder (2). Meanwhile, the descending metal sealing plate (19) will drive the U-shaped magnetic frame (27) and the two strip plates (28) to descend through magnetism. The two descending strip plates (28) drive the two third racks (37) to descend through the two vertical plates (36). After each descending third rack (37) meshes with the corresponding second gear (33) below, the descending third rack (37) will drive the second gear (33) to rotate. The rotating second gear (33) will drive the second rack (34) to move. The moving second rack (34) drives the clamping member (32) to move out of the card slot (31) through the slider (30), thereby releasing the fixation of the annular piston plate (6). Subsequently, due to the limitation of the mounting plate (15), the two strip plates (28) stop descending. After that, the descending metal sealing plate (19) disengages from the U-shaped magnetic frame (27); S3. When the ceramic pot is at the middle of the middle cylinder (2), all the first electric push rods (16) extend to drive the annular plate (14) to descend. The descending annular plate (14) drives the movable plate (11) to descend through the respective extension rods (13). Each descending movable plate (11) drives the corresponding first gear (10) to rotate by ninety degrees through the first rack (12). The rotating first gear (10) drives the rectangular plate (9) connected thereto to rotate by ninety degrees, blocking the rectangular through slot (7). Thus, all the rectangular through slots (7) on the annular piston plate (6) are completely closed. After all the descending movable plates (11) contact the inner bottom surface of the cavity (8), the descending annular plate (14) drives the annular piston plate (6) to descend. The descending annular piston plate (6) squeezes the water below it and sends it into the respective annular pipes (3) through the respective input pipes (5), and then sprays out from the respective water outlets (4). S4. Since the water outlets (4) on each annular pipe (3) are annularly distributed, the water in all the annular pipes (3) is sprayed towards the center of the middle cylinder (2) through the respective water outlets (4). And the ceramic pot is exactly at the center of the middle of the middle cylinder (2), causing the water in the middle cylinder (2) to move from the edge towards the side of the ceramic pot in the center, enhancing the fluidity of the water in the middle cylinder (2). Since the water flow is from the edge towards the center, the water flow direction is always towards the side of the ceramic pot. If the ceramic pot has cracks, the water flowing towards the cracks can easily penetrate through the cracks into the interior of the ceramic pot, shortening the soaking time of the ceramic pot in water and accelerating the detection efficiency; S5. After the water sprayed from the annular pipes (3) below the ceramic pot converges at the center, due to the continuous convergence and increase of the water, an upward water flow appears. The upward water flow can be used to impact the lower surface of the ceramic pot to detect the lower surface of the ceramic pot. Since the water in the middle cylinder (2) continuously increases and the liquid level rises, it then returns to the detection pool (1) above the annular piston plate (6) through the port of the middle cylinder (2); S6. Subsequently, the first electric push rod (16) shortens to drive all the movable plates (11) to rise. The rising movable plates (11) drive the first gear (10) to rotate through the first rack (12). The rotating first gear (10) drives the rectangular plate (9) to rotate by 90 degrees to open each rectangular through slot (7). When the movable plate (11) touches the inner top surface of the cavity (8), the rising annular plate (14) will drive the annular piston plate (6) to rise. Since each rectangular through slot (7) is opened, during the rising process of the annular piston plate (6), the water above the annular piston plate (6) reaches below the annular piston plate (6) through the rectangular through slot (7) until the position of the annular piston plate (6) is restored. At this time, each clamping member (32) is exactly aligned with the corresponding card slot (31) on the annular piston plate (6). S7. Subsequently, the second electric push rod (18) shortens to drive the metal sealing plate (19), the suction cups (22) and the ceramic pot to rise. The rising ceramic pot is separated from the water in the middle cylinder (2). When the rising metal sealing plate (19) reaches the same height as the mouth-shaped magnetic frame (27), due to the magnetic force, the mouth-shaped magnetic frame (27) is adsorbed on the metal sealing plate (19). The rising metal sealing plate (19) drives the mouth-shaped magnetic frame (27) to rise. The rising mouth-shaped magnetic frame (27) drives the two third racks (37) to rise. Each rising third rack (37) drives the second gear (33) to reverse, and through the rising operation, the clamping member (32) moves reversely to insert into the corresponding card slot (31) to fix the annular piston plate (6). After the second electric push rod (18) retracts to the shortest, the staff holds the ceramic pot by hand and releases the negative pressure in each suction cup (22) through the negative pressure generator (25) to release the fixation of the ceramic pot, and then removes the ceramic pot to observe whether there is liquid inside to check whether there are cracks.

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