A fused quartz crucible defect detection apparatus

Abstract

The present application relates to the technical field of quartz crucible melting detection, in particular to a fused quartz crucible defect detection equipment, which comprises a melting detection mechanism, a molten material shaping mechanism installed in the melting detection mechanism, a mold gap control mechanism installed on the molten material shaping mechanism and a mold turning mechanism installed on the molten material shaping mechanism and located in the melting detection mechanism. By taking the lower mold, the upper mold and the mold pressing rod as the melting carrier, when the solid material is filled into the inside of the mold until the upper mold and the lower mold are closed, the mold is continuously heated after being closed until the solid material is melted, and after the air between the solid materials forms bubbles in the molten material, the real-time lamination of the upper mold pin head is monitored by using the pressure sensor. Once the pressure in the mold changes due to the bubbles, the pressure sensor can quickly detect the change of the pressure of the closed mold, so that the molten material after the mold is closed can be accurately and dynamically monitored.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of quartz crucible melting detection, in particular to a fused quartz crucible defect detection equipment. BACKGROUND

[0002] Fused quartz crucible has good thermal stability, low thermal expansion coefficient and thermal conductivity, and will not chemically react with silicon at high temperature, so it is widely used in polycrystalline silicon ingot production. In addition, quartz ceramics also have good dielectric strength, are good electrical insulators and light wave reflectors. Because fused quartz ceramics have many excellent properties, they have been rapidly promoted and applied since their inception, and their application fields involve metallurgy, chemical industry, electrical industry, aerospace and other industrial fields.

[0003] At present, the defect detection of quartz crucible is mainly for the finished product after molding. This detection method can only avoid defective products caused by bad processes in the molding link, and cannot improve the quality of quartz crucible molding. Because the raw materials such as quartz sand are filled in the mold, under the action of high temperature, the internal gap will be converted into bubbles during the process of changing from solid state to molten state after the mold is closed, and then the internal pressure of the mold will be increased. If the bubbles cannot be effectively and timely removed in the molten state, it will have a serious negative impact on its performance, service life and downstream processes (such as single crystal silicon growth) it serves. For example:

[0004] 1. As internal defects, bubbles will become stress concentration points. During high temperature heating or cooling, cracks are easy to occur around the bubbles due to the difference in thermal expansion coefficient, which significantly increases the risk of cracking or bursting of the crucible.

[0005] 2. The gas (air or water vapor) in the bubble expands at high temperature, which may cause local pressure rise and cause micro-explosion or bulging.

[0006] 3. Quartz crucible is mainly used for growing single crystal silicon by the Czochralski method (CZ method), and it contains molten silicon. If the crucible has bubbles, it will directly affect the quality of the crystal: the bubbles may contain water (OH⁻), metal ions or hydrocarbons and other impurities. Bubble rupture or local outgassing will cause local disturbance of molten silicon, destroying the stability of temperature field and flow field.

[0007] Therefore, in the preparation process of quartz crucible, the generation of bubbles must be strictly controlled, which is a key link to ensure its high performance and high reliability.

[0008] In view of this, a fused quartz crucible defect detection equipment is designed to solve the above problems. SUMMARY

[0009] The present application aims to solve one of the technical problems in the prior art or related art.

[0010] To this end, the technical scheme adopted by the present application is as follows:

[0011] A fused quartz crucible defect detection equipment, including fused casting detection mechanism, installed in the fused casting detection mechanism, fused material shaping mechanism, installed on the fused material shaping mechanism, and installed on the fused material shaping mechanism and located in the fused casting detection mechanism, and the mold turning mechanism; the fused casting detection mechanism includes a heat insulation base and a drawer plate, and the drawer plate is inserted into the inside of the heat insulation base, the top end of the heat insulation base is fixedly installed with a top pad, the top of the drawer plate is fixedly installed with a supporting plate, and the inside of the supporting plate is provided with a plurality of uniformly distributed screw holes, the locking bolt is installed in the screw hole, the distance support leg is movably installed on the inside of the supporting plate and located outside the locking bolt, the supporting plate is inserted into the outside of the distance support leg, the second bolt is installed in the inside of the supporting plate and is adapted to bear on the distance support leg, and the pressure detector is fixedly installed on the inside end of the supporting plate; the fused material shaping mechanism includes a truss arranged at the top end of the heat insulation base, two gaskets are fixedly installed at both ends of the truss, the first end rod is adapted to penetrate into one of the gaskets, the second end rod is adapted to penetrate into the other gasket, the lower mold is installed at the middle of the second end rod and the first end rod, the upper mold is movably installed in the lower mold, the pressure receiving end is fixedly installed on the upper mold, the mold pressing rod is inserted into the inside of the upper mold, and the outside end of the first end rod is provided with a secondary insertion hole; the bottom end of the lower mold is symmetrical with the inside slot of the top pad, and the pressure detector is adapted to fit on the pressure receiving end.

[0012] In a preferred example, the outer wall of the heat insulation base is provided with a limiting groove, and two pads are fixedly installed on both sides of the heat insulation base, and a heat insulation inner pad is inserted into the inside of the heat insulation base, and one end of the top pad is adapted to fit on the heat insulation inner pad.

[0013] Four groups of pads are uniformly arranged in the gap between the heat insulation inner pad and the heat insulation base, and the number of pads in each group is two, two first bolts are inserted into the inside of the pad, one of the first bolts is fixedly installed in the heat insulation inner pad, and the other first bolt is fixedly installed in the heat insulation base.

[0014] The top of the heat insulation inner pad is provided with a vertical groove.

[0015] In a preferred example, one end of the drawer plate penetrating into the inner cavity of the heat insulation base is fixedly installed with a furnace, and the flame spout at the top end of the furnace is adapted to the bottom end of the lower mold, an air inlet pipe is fixedly installed on the furnace, and the outer end of the air inlet pipe is adapted to penetrate to the outside of the drawer plate.

[0016] In a preferred example, the outer wall of the distance support leg is provided with a scale for marking the real-time height of the supporting plate and the pressure detector after bearing on the pressure receiving end.

[0017] The present application can be further configured as: the outer side of the truss is fixedly installed with a horizontal end plate, the top of the truss is fixedly installed with a vertical end plate, the two sides of the truss are fixedly installed with two clamping blocks, and a guide rod is fixedly installed in the inner part of the clamping block and is adapted to penetrate into the inner part of the pad;

[0018] The inner part of the horizontal end plate is movably installed with a first lead screw, a boosting pad is movably installed on the threaded section of the first lead screw, and the boosting pad is fixedly installed on the heat insulation base.

[0019] The present application can be further configured as: four evenly distributed column heads are fixedly installed in the upper die, and a vertical hole adapted to the column head is formed in the top end of the lower die;

[0020] A ring groove is formed in the top of the die pressing rod, and a crucible blank is arranged in the inner part of the lower die.

[0021] The present application can be further configured as: the die gap regulating mechanism comprises a beam plate fixedly installed horizontally on the top of the truss, a calibration pad plate is fixedly installed in the middle part of the beam plate, the slot in the middle part of the calibration pad plate is adapted to and symmetrically arranged with the vertical slot, a second lead screw is movably installed in the inner part of the beam plate, a collet is movably installed on the threaded section of the second lead screw, two traction frames are movably connected at the two ends of the collet, a clamping seat is movably installed at the other end of the traction frame, a horizontal rod is fixedly installed in the inner part of the clamping seat, and a clamping piece is fixedly installed at the other end of the horizontal rod.

[0022] The present application can be further configured as: the number of clamping pieces is two, a semicircular groove is formed in the top end of each clamping piece, the semicircular groove is adapted to be clamped in the ring groove in the top end of the die pressing rod, one clamping piece is movably installed on the outer part of the first end rod, and the other clamping piece is movably installed on the outer part of the second end rod.

[0023] The present application can be further configured as: the die turning mechanism comprises a load-bearing outer plate installed on the truss, a slide rod is fixedly installed on the outer side of the load-bearing outer plate, a rectangular hole is formed in the inner part of the load-bearing outer plate, a clamp is fixedly installed on the inner wall of the load-bearing outer plate, a machine box is fixedly installed in the rectangular hole, an electric motor is fixedly installed in the inner part of the machine box, a linkage rod is connected to the inner end of the transmission shaft in the electric motor, an eccentric wheel is fixedly installed on the linkage rod, a connecting head is movably installed on the eccentric wheel, a striker is movably installed at the other end of the connecting head, and the striker penetrates through the calibration pad plate and the vertical slot and bears on the upper die;

[0024] A main insertion hole is formed in the outer end of the transmission shaft in the electric motor.

[0025] The application can be further configured as follows in a preferred example: the internal part of the load-bearing outer plate is fixedly provided with a hydraulic component, the assisting plate is fixedly provided on a hydraulic sub-rod in the hydraulic component, and the assisting plate is movably provided on the outer part of the sliding rod, the bottom end of the assisting plate is movably provided with a driving component, the top end of the assisting plate is movably provided with a transmission component, and a chain is movably connected between the driving component and the transmission component.

[0026] By adopting the above technical scheme, the application has the following beneficial effects:

[0027] 1. The application uses the lower mold, the upper mold and the mold pressing rod as the melting and casting carrier. When the solid material is filled into the mold, the upper mold and the lower mold are closed, and the mold is continuously heated after being closed until the solid material melts, and the air between the solid materials forms bubbles in the molten material. Then, the real-time layering of the upper mold head is monitored by using the pressure sensor. Once the pressure in the mold changes due to the bubbles, the pressure sensor can quickly detect the change of the pressure of the closed mold, so that the molten material after the mold is closed can be dynamically monitored.

[0028] 2. The application controls the initial mold cavity of the mold pressing rod and the lower mold by using the mold gap control mechanism. When the solid material changes into a molten state, the pressure detector is used to detect the real-time pressure of the material, and the air bubbles in the molten material are driven to the top of the material by means of the knocking of the striker. During the continuous contraction of the upper mold and the mold pressing rod, the upper mold will push the air layer at the top of the material out along the mold gap, and the dynamic pressure digital display of the upper mold contacting the air and the material is used to determine whether the air is exhausted, so as to improve the quality of the quartz crucible after molding.

[0029] 3. The application controls the turning and shaking of the upper mold, the lower mold and the mold pressing rod which are in the air and closed by using the mold turning mechanism, until the molten material in the mold cavity is shaken and refined, so as to ensure that the pores in the inner wall of the mold are filled with the molten material, thereby enhancing the strength of the structure of the quartz crucible after molding, and providing a fast demolding platform for subsequent use. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram for use of the application;

[0031] Figure 2 It is an exploded schematic diagram of the melting and casting detection mechanism of the application;

[0032] Figure 3 It is a schematic diagram of the application; Figure 2 It is an enlarged schematic diagram of position A in the application;

[0033] Figure 4 It is an enlarged schematic diagram of position B in the application; Figure 2

[0034] Figure 5 ​A partial schematic view of the present application;

[0035] Figure 6 An exploded schematic view of the gap regulating mechanism of the present application;

[0036] Figure 7 An exploded schematic view of the melt shaping mechanism of the present application;

[0037] Figure 8 A cross-sectional schematic view of the lower mold of the present application;

[0038] Figure 9 An exploded schematic view of the mold flipping mechanism of the present application.

[0039] Reference signs:

[0040] 100, melt detection mechanism; 110, heat insulation base; 1101, limiting groove; 1102, pad; 120, heat insulation inner pad; 1201, vertical groove; 1202, pad foot; 1203, first bolt; 130, top pad plate; 140, drawer plate; 1401, furnace; 1402, air inlet pipe; 1403, support plate; 150, gauge leg; 1501, locking bolt; 1502, support plate; 1503, second bolt; 1504, pressure detector;

[0041] 200, melt shaping mechanism; 210, truss; 2101, horizontal end plate; 2102, vertical end plate; 2103, clamping block; 2104, guide rod; 2105, gasket; 220, first lead screw; 2201, boost pad; 230, first end rod; 240, second end rod; 250, lower mold; 2501, upper mold; 2502, stud; 2503, pressure receiving end; 2504, mold pressing rod; 2505, crucible blank;

[0042] 300, gap regulating mechanism; 310, beam plate; 3101, calibration pad plate; 320, second lead screw; 330, chuck; 3301, traction frame; 3302, clamping seat; 340, cross rod; 350, clamping piece;

[0043] 400, mold flipping mechanism; 410, load-bearing outer plate; 4101, slide rod; 4102, clamp; 420, linkage rod; 4201, eccentric wheel; 4202, adapter; 4203, striker; 430, case; 4301, motor; 440, hydraulic component; 450, booster plate; 4501, driving component; 4502, transmission component; 4503, chain. DETAILED DESCRIPTION

[0044] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to the specific embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] It is to be understood that the above description is only exemplary in nature and is not intended to limit the scope of the application.

[0046] Some embodiments of the present application provide a fused quartz crucible defect detection device.

[0047] Embodiment 1:

[0048] In combination with Figures 1 to 9 As shown in the drawings, the present application provides a fused quartz crucible defect detection device, which comprises a melting detection mechanism 100, a melt shaping mechanism 200 installed in the melting detection mechanism 100, a mold gap control mechanism 300 installed on the melt shaping mechanism 200, and a mold turning mechanism 400 installed on the melt shaping mechanism 200 and located in the melting detection mechanism 100. The melting detection mechanism 100 is used for flame spraying and dynamic monitoring of the mold pressure. The melt shaping mechanism 200 is used for melting and shaping of solid raw materials. The mold gap control mechanism 300 is used for controlling the gap of the closed mold. The mold turning mechanism 400 is used for expelling bubbles in the mold and providing convenience for subsequent demolding.

[0049] The melting detection mechanism 100 comprises a heat insulation base 110 and a drawer plate 140, and the drawer plate 140 is inserted into the inside of the heat insulation base 110. The top end of the heat insulation base 110 is fixedly installed with a top pad plate 130. The top of the drawer plate 140 is fixedly installed with a supporting plate 1403, and the inside of the supporting plate 1403 is provided with a plurality of uniformly distributed screw holes. A locking bolt 1501 is installed in the screw hole. A gauge leg 150 is movably installed on the inside of the supporting plate 1403 and located outside the locking bolt 1501. A supporting plate 1502 is inserted into the outside of the gauge leg 150. A second bolt 1503 is installed in the inside of the supporting plate 1502 and is adapted to bear on the gauge leg 150. A pressure detector 1504 is fixedly installed on the inside end of the supporting plate 1502.

[0050] The outer wall of the heat insulation base 110 is provided with a limiting groove 1101, and two pads 1102 are fixedly installed on both sides of the heat insulation base 110. A heat insulation inner pad 120 is inserted into the inside of the heat insulation base 110, and one end of the top pad plate 130 is adapted to fit on the heat insulation inner pad 120.

[0051] Four groups of evenly distributed feet 1202 are arranged in the gap between the heat insulation inner pad 120 and the heat insulation base 110, and the number of each group of feet 1202 is two. Two first bolts 1203 are inserted into the inside of the feet 1202, one of which is fixedly installed in the heat insulation inner pad 120, and the other is fixedly installed in the heat insulation base 110;

[0052] A vertical groove 1201 is formed in the top of the heat insulation inner pad 120;

[0053] A furnace 1401 is fixedly installed at one end of the drawer plate 140 penetrating into the inner cavity of the heat insulation base 110, and the flame spout at the top end of the furnace 1401 is adapted to the bottom end of the lower mold 250. An air inlet pipe 1402 is fixedly installed on the furnace 1401, and the outer end of the air inlet pipe 1402 is adapted to penetrate to the outside of the drawer plate 140;

[0054] The molten material shaping mechanism 200 includes a truss 210 arranged at the top end of the heat insulation base 110. Two gaskets 2105 are fixedly installed at both ends of the truss 210. A first end rod 230 is adapted to penetrate into one of the gaskets 2105. A second end rod 240 is adapted to penetrate into the other gasket 2105. A lower mold 250 is installed at the middle part of the second end rod 240 and the first end rod 230. An upper mold 2501 is movably installed in the lower mold 250. A pressure receiving end 2503 is fixedly installed on the upper mold 2501. A mold pressing rod 2504 is inserted into the inside of the upper mold 2501, and a secondary insertion hole is formed at the outer end of the first end rod 230.

[0055] The bottom end of the lower mold 250 is symmetrical to the inner slot of the top pad plate 130, and the pressure detector 1504 is adapted to be attached to the pressure receiving end 2503;

[0056] The outer wall of the gauge leg 150 is provided with a scale for calibrating the real-time height of the support plate 1502 and the pressure detector 1504 after being pressed on the pressure receiving end 2503;

[0057] The outer side of the truss 210 is fixedly installed with a horizontal end plate 2101, and the top of the truss 210 is fixedly installed with a vertical end plate 2102. Two clamping blocks 2103 are fixedly installed on both sides of the truss 210. A guide rod 2104 is fixedly installed in the inside of the clamping block 2103, and the guide rod 2104 is adapted to penetrate into the inside of the gasket 1102.

[0058] A first screw rod 220 is movably installed in the inside of the horizontal end plate 2101, and a boosting pad 2201 is movably installed on the threaded section of the first screw rod 220. The boosting pad 2201 is fixedly installed on the heat insulation base 110;

[0059] Four evenly distributed column heads 2502 are fixedly installed in the inside of the upper mold 2501, and a vertical hole adapted to the column head 2502 is formed in the top end of the lower mold 250.

[0060] The top of the mold pressing rod 2504 is provided with an annular groove, and the inside of the lower mold 250 is provided with a crucible blank 2505.

[0061] The combustible gas is transported into the furnace 1401 along the gas inlet pipe 1402, and the jet is formed by the furnace 1401. At this time, the jet will continuously heat the bottom of the lower mold 250, and the quartz sand and other raw materials filled into the inner cavity of the lower mold 250 can be heated;

[0062] When the upper mold 2501 is clamped with the four column heads 2502 and the lower mold 250, the upper mold 2501, the lower mold 250 and the mold pressing rod 2504 in the closed mold can be quickly hot-melted;

[0063] At the same time, the locking bolt 1501 is used to control the transverse movement of the gage leg 150 and the support plate 1502 towards the inside of the heat insulation base 110, until the contact at the bottom end of the pressure detector 1504 is adapted to fit the top end of the pressure bearing end 2503. The pressure detector 1504 is a PT460E-35MPA-6 melt pressure transmitter, and the pressure detector 1504 is under pressure on the pressure bearing end 2503 and is exposed to the natural environment. Therefore, the temperature of the upper half of the upper mold 2501 is much lower than the temperature of the closed mold cavity. In order to enhance the safety of the use of the pressure detector 1504, the top of the top pad plate 130, the outer surface of the upper mold 2501 and the lower mold 250 are coated with heat insulation paint. Then, the locking bolt 1501 is used to fix the gage leg 150 in the supporting plate 1403. When the solid material in the lower mold 250, the upper mold 2501 and the column head 2502 is converted to a molten state, the gap in the solid material will become a bubble in the molten material. Under the action of high temperature, the pressure in the mold cavity will change. At this time, the real-time pressure change in the mold cavity is detected by the pressure detector 1504, and the change of the pressure in the mold cavity is observed to determine whether there is a defect after the molten material is shaped.

[0064] Example 2:

[0065] In combination Figures 2 to 6 As shown in the drawings, on the basis of example 1, the mold gap control mechanism 300 includes a horizontally placed beam plate 310 fixedly installed on the top of the truss 210. The middle part of the beam plate 310 is fixedly installed with a calibration pad plate 3101, and the slot in the middle part of the calibration pad plate 3101 is symmetrically adapted to the vertical slot 1201. The inside of the beam plate 310 is movably installed with a second lead screw 320. The threaded section of the second lead screw 320 is movably installed with a chuck 330. The two ends of the chuck 330 are movably connected with two traction frames 3301. The other end of the traction frame 3301 is movably installed with a clamping seat 3302. The inside of the clamping seat 3302 is fixedly installed with a cross rod 340. The other end of the cross rod 340 is fixedly installed with a clamping piece 350.

[0066] The number of the clamping pieces 350 is two, and the top end of the clamping piece 350 is provided with a semicircular groove which is adapted to be clamped in the ring groove at the top end of the mold rod 2504, and one of the clamping pieces 350 is movably installed outside the first end rod 230, and the other clamping piece 350 is movably installed outside the second end rod 240.

[0067] Preferably, the second screw rod 320 is movably installed in the vertical end plate 2102 away from the beam plate 310, and the top of the truss 210 is provided with two symmetrically distributed transverse grooves, and the two ends of the beam plate 310 are fixedly installed in the two transverse grooves.

[0068] Specifically, when the outer end rotating wheel of the second screw rod 320 is controlled to rotate, the chuck 330 will drive the two traction frames 3301 to relatively expand, and finally the two clamping seats 3302 and the two cross rods 340 will relatively slide with the mold rod 2504 as the center, so as to control the adjustment of the gap between the mold rod 2504 and the inner cavity of the lower mold 250.

[0069] Embodiment 3:

[0070] In combination Figures 2 to 9 As shown in the above embodiment, the mold turning mechanism 400 includes a load-bearing outer plate 410 installed on the truss 210, and the outer side of the load-bearing outer plate 410 is fixedly provided with a sliding rod 4101, and the inside of the load-bearing outer plate 410 is provided with a rectangular hole, and the inner wall of the load-bearing outer plate 410 is fixedly provided with a clamp 4102, and the rectangular hole is fixedly provided with a machine box 430, and the inside of the machine box 430 is fixedly provided with a motor 4301, and the inner end of the transmission shaft in the motor 4301 is connected with a linkage rod 420, and the linkage rod 420 is fixedly provided with an eccentric wheel 4201, and the eccentric wheel 4201 is movably provided with an adapter 4202, and the other end of the adapter 4202 is movably provided with a striker 4203, and the top end of the striker 4203 penetrates through the calibration backing plate 3101 and the vertical groove 1201 and bears on the upper mold 2501.

[0071] The outer end of the transmission shaft in the motor 4301 is provided with a main insertion hole;

[0072] The inside of the load-bearing outer plate 410 is fixedly provided with a hydraulic piece 440, and a booster plate 450 is fixedly installed on the hydraulic sub-rod in the hydraulic piece 440, and the booster plate 450 is movably installed outside the sliding rod 4101, and the bottom end of the booster plate 450 is movably provided with a driving piece 4501, and the top end of the booster plate 450 is movably provided with a transmission piece 4502, and the driving piece 4501 and the transmission piece 4502 are drivingly connected with a chain 4503.

[0073] Preferably, the inner wall of the truss 210 is provided with two threaded studs, and the load-bearing outer plate 410 is mounted outside the two threaded studs by two nuts, and the load-bearing outer plate 410 is adapted to be inserted into the limiting groove 1101, the motor 4301 is a double-shaft motor, and the outer part of the sliding rod 4101 is coated with lubricating oil;

[0074] When the motor 4301 operates, one end of the transmission shaft in the motor 4301 controls the rotation of the linkage rod 420 and the eccentric wheel 4201, the adapter 4202 and the striker 4203 make reciprocating motion along the inside of the calibration base plate 3101 and the vertical groove 1201, and the top end of the striker 4203 knocks the upper mold 2501 and the lower mold 250 after the mold is closed, at this time, the bubbles in the molten material in the mold can be driven out upward;

[0075] The hydraulic part 440 operates until the internal hydraulic sub-rod drives the booster plate 450 to approach the heat insulation base 110, the driving part 4501 is inserted into the main insertion hole at the other end of the transmission shaft in the motor 4301, and the transmission part 4502 is inserted into the auxiliary insertion hole at the outer end of the first end rod 230, at this time, the first end rod 230 and the second end rod 240 can drive the lower mold 250 and the upper mold 2501 to shake the mold, so that the molten material is refined, and the air holes in the inner wall of the lower mold 250 can be filled.

[0076] The working principle and use process of the present application are as follows: when in use, the locking bolt 1501 is reversed in advance, then the calibration support leg 150, the support plate 1502 and the pressure detector 1504 are placed horizontally outward along the supporting plate 1403 until the hole in the top pad plate 130 is exposed without obstruction;

[0077] Then the second screw 320 is adjusted to reverse, until the chuck 330 moves horizontally along the threaded section of the second screw 320, as the chuck 330 continuously approaches the beam plate 310, the two traction frames 3301 movably installed at both ends of the chuck 330 expand outward, the clamping seat 3302 installed at the other end of the traction frame 3301 drives the cross rod 340 and the clamping part 350 to expand outward, then the external clamp is used to successively pull out the mold pressing rod 2504 and the upper mold 2501 from the lower mold 250, then the raw materials such as quartz sand are put into the inner cavity of the lower mold 250, and then the upper mold 2501 is inserted into the top end of the lower mold 250;

[0078] Then the combustible gas is input into the inner cavity of the furnace 1401 through the air inlet pipe 1402, the inner cavity of the furnace 1401 is ignited, the bottom of the lower mold 250 is continuously heated, until the raw materials such as quartz sand are in a molten state, then the mold pressing rod 2504 is inserted along the hole in the middle part of the upper mold 2501, under the extrusion and shaping action of the mold pressing rod 2504, the raw materials such as quartz sand can gradually form the structure of the crucible blank 2505;

[0079] Under the sustained high temperature heating, the quartz sand and other raw materials from the solid state into the molten state in the process of transformation, the air in the solid material inside the bubble in the molten material inside, and under the action of high temperature, increase the pressure inside the mold, and the air bubble in the molten material inside the product quality, serious will cause quartz crucible appear serious defects, the upper die 2501 and the lower die 250 is closed, until the pressure inside the mold is constant, then adjust the locking bolt 1501, until the gauge leg 150, support plate 1502 transverse to the initial position, with the pressure detector 1504 bottom contact and the top end of the pressure head 2503 fit with the adaptation;

[0080] When the material from solid to molten state transformation, and the air in the solid material into the air bubble in the molten material, with the increase of bubble, the pressure inside the mold will also increase, at this time, the pressure head 2503 and the upper die 2501 under the oppression of bubble will extrude the pressure detector 1504, at this time, the pressure detector 1504 can detect the pressure state between the upper die 2501 and the lower die 250 in real time, and then determine whether there is bubble problem after the molten material shaping in real time;

[0081] When the bubble in the lower die 250 cavity is detected, the hydraulic part 440 is operated until the hydraulic sub rod in the hydraulic part 440 pushes the booster plate 450 outwards, at this time, the driving part 4501 is separated from one end of the transmission shaft in the motor 4301, then the motor 4301 is operated until the other end of the transmission shaft in the motor 4301 drives the linkage rod 420, the eccentric wheel 4201 and the adapter 4202 to rotate uniformly, the striker 4203 movably installed at the other end of the adapter 4202 will regularly extend along the inside of the calibration pad 3101 and the vertical groove 1201, and finally the molten material will be evenly vibrated until the air bubble in the molten material is effectively removed. The change process of the pressure in the lower die 250 and the upper die 2501 is monitored by observing the actual pressure data of the pressure detector 1504;

[0082] When demolding is needed, stop heating, and reverse the first screw rod 220 until the molten material shaping mechanism 200 is lifted upward, when the lower die 250 and the upper die 2501 are in the suspended state, the hydraulic part 440 is operated again until the hydraulic sub rod in the hydraulic part 440 drives the booster plate 450, the driving part 4501 and the transmission part 4502 to be connected with the motor 4301 and the first end rod 230 respectively. The motor 4301 in operation drives the driving part 4501, the chain 4503 and the transmission part 4502, and finally the first end rod 230, the lower die 250 and the second end rod 240 can realize the turnover demolding.

[0083] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A fused quartz crucible defect detection apparatus characterized by comprising: The application relates to a molten casting detection mechanism (100), a molten material shaping mechanism (200) installed in the molten casting detection mechanism (100), a mold gap control mechanism (300) installed on the molten material shaping mechanism (200) and a mold turning mechanism (400) installed on the molten material shaping mechanism (200) and located in the molten casting detection mechanism (100). The molten casting detection mechanism (100) comprises a heat insulation base (110) and a drawer plate (140), the drawer plate (140) is inserted into the heat insulation base (110), a top baffle plate (130) is fixedly installed at the top end of the heat insulation base (110), a supporting plate (1403) is fixedly installed at the top of the drawer plate (140), a scale leg (150) is movably installed on the supporting plate (1403), and the scale leg (150) is connected with a supporting plate (1502); and a pressure detector (1504) is fixedly installed at the inner end of the supporting plate (1502). The molten material shaping mechanism (200) comprises a truss (210) arranged at the top end of the heat insulation base (110), and a first end rod (230) and a second end rod (240) are installed on the truss (210). Two gaskets (2105) are fixedly installed at the two ends of the truss (210), the first end rod (230) is adapted to penetrate into one of the gaskets (2105), the second end rod (240) is adapted to penetrate into the other gasket (2105), a lower mold (250) is installed at the middle part of the second end rod (240) and the first end rod (230), an upper mold (2501) is movably installed in the lower mold (250), a pressure receiving end (2503) is fixedly installed on the upper mold (2501), a mold pressing rod (2504) is inserted into the inside of the upper mold (2501), and a secondary insertion hole is formed at the outer end of the first end rod (230). The bottom end of the lower mold (250) is symmetrical to the inner groove of the top baffle plate (130), and the pressure detector (1504) is adapted to be attached to the pressure receiving end (2503). One end of the drawer plate (140) penetrating into the inner cavity of the heat insulation base (110) is fixedly installed with a furnace (1401), the flame spouting port at the top end of the furnace (1401) is adapted to the bottom end of the lower mold (250), an air inlet pipe (1402) is fixedly installed on the furnace (1401), and the outer end of the air inlet pipe (1402) is adapted to penetrate into the outside of the drawer plate (140).

2. The fused quartz crucible defect detection apparatus according to claim 1, wherein The outer wall of the heat insulation base (110) is provided with a limiting groove (1101), two gaskets (1102) are fixedly installed on the two sides of the heat insulation base (110), a heat insulation inner gasket (120) is inserted into the heat insulation base (110), and one end of the top baffle plate (130) is adapted to be attached to the heat insulation inner gasket (120). The gap of the heat insulation inner pad (120) and the heat insulation base (110) is provided with four groups of evenly distributed feet (1202), and the number of feet (1202) in each group is two, the inside of the feet (1202) is inserted with two first bolts (1203), one of which is fixedly installed in the heat insulation inner pad (120), and the other is fixedly installed in the heat insulation base (110); The top of the heat insulation inner pad (120) is provided with a vertical groove (1201).

3. The fused quartz crucible defect detection apparatus according to claim 1, wherein The outer wall of the gauge leg (150) is provided with a scale for calibrating the real-time height of the support plate (1502) and the pressure detector (1504) after being supported on the pressure end (2503).

4. The fused quartz crucible defect detection apparatus according to claim 2, wherein The outer side of the truss (210) is fixedly provided with a horizontal end plate (2101), the top of the truss (210) is fixedly provided with a vertical end plate (2102), and the two sides of the truss (210) are fixedly provided with two clamping blocks (2103), a guide rod (2104) is fixedly installed in the inside of the clamping block (2103), and the guide rod (2104) is adapted to penetrate into the inside of the pad (1102); The inside of the horizontal end plate (2101) is movably provided with a first screw rod (220), and a boosting pad (2201) is movably installed on the threaded section of the first screw rod (220), and the boosting pad (2201) is fixedly installed on the heat insulation base (110).

5. The fused quartz crucible defect inspection apparatus according to claim 2, wherein The inside of the upper die (2501) is fixedly provided with four evenly distributed column heads (2502), and the top of the lower die (250) is provided with a vertical hole adapted to the column head (2502); The top of the die rod (2504) is provided with a ring groove, and the inside of the lower die (250) is provided with a crucible blank (2505).

6. The fused quartz crucible defect detection apparatus according to claim 5, wherein The mold gap regulating mechanism (300) comprises a beam plate (310) fixedly installed on the top of the truss (210) and horizontally arranged, a calibration pad (3101) fixedly installed on the middle of the beam plate (310), and the slot in the middle of the calibration pad (3101) is adapted and symmetrical with the vertical groove (1201), a second screw rod (320) movably installed in the inside of the beam plate (310), a chuck (330) movably installed on the threaded section of the second screw rod (320), two traction frames (3301) movably connected at both ends of the chuck (330), a clamping seat (3302) movably installed at the other end of the traction frame (3301), a horizontal rod (340) fixedly installed in the inside of the clamping seat (3302), and a clamping piece (350) fixedly installed at the other end of the horizontal rod (340).

7. The fused quartz crucible defect detection apparatus according to claim 6, wherein The number of clamping pieces (350) is two, and the top of the clamping piece (350) is provided with a semicircular groove, which is adapted to be connected in the ring groove at the top of the die rod (2504), one of the clamping pieces (350) is movably installed outside the first end rod (230), and the other is movably installed outside the second end rod (240).

8. The fused quartz crucible defect inspection apparatus according to claim 2, wherein The rolling mechanism (400) comprises a load-bearing outer plate (410) mounted on the truss (210), the outer side of the load-bearing outer plate (410) is fixed with a sliding rod (4101), the inside of the load-bearing outer plate (410) is provided with a rectangular hole, the inner wall of the load-bearing outer plate (410) is fixedly installed with a clamp (4102), the rectangular hole is fixedly installed with a machine box (430), the inside of the machine box (430) is fixedly installed with a motor (4301), the inner end of the transmission shaft in the motor (4301) is connected with a linkage rod (420), the linkage rod (420) is fixedly installed with an eccentric wheel (4201), the eccentric wheel (4201) is movably installed with an adapter (4202), the other end of the adapter (4202) is movably installed with a striker (4203), and the top end of the striker (4203) penetrates through the calibration backing plate (3101) and the vertical groove (1201) and bears on the upper die (2501).

9. The fused silica crucible defect detection apparatus of claim 8, wherein, The inside of the load-bearing outer plate (410) is fixedly installed with a hydraulic part (440), the hydraulic part (440) is connected with an auxiliary plate (450), the auxiliary plate (450) is movably installed on the outside of the sliding rod (4101), the bottom end of the auxiliary plate (450) is movably installed with a driving part (4501), the top end of the auxiliary plate (450) is movably installed with a transmission part (4502), and the driving part (4501) and the transmission part (4502) are drivingly connected with a chain (4503).

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