A crucible conveying device with adjustable posture

Abstract

The invention discloses a crucible conveying device with adjustable posture, which relates to the technical field of conveying, including a front conveyor and a rear conveyor, wherein a turning mechanism is arranged between the front conveyor and the rear conveyor, and the turning mechanism comprises a top plate, an L-shaped support member, a lower pressure plate and a turning frame, wherein two L-shaped support members are arranged at intervals at the bottom of the top plate along a conveying direction perpendicular to the front conveyor, a lower pressure plate is arranged below the top plate, a limiting assembly is arranged on a horizontal rod member of the L-shaped support member, and the limiting assembly comprises a slide seat and a limiting block, the slide seat is slidably arranged in the horizontal rod member, the moving direction of the slide seat is parallel to the conveying direction of the front conveyor, the limiting block is slidably installed above the slide seat, the slide seat moves along the height direction of the L-shaped support member, a rotating spindle is fixed to the outer side wall of the L-shaped support member, the rotating spindle is rotatably connected to the turning frame, the crucible is turned over by supporting, and will not cause damage to the crucible, thereby greatly reducing the defective rate and reducing the production cost.

Description

Technical Field

[0001] The invention relates to the technical field of crucible production and transportation, in particular to a crucible transportation device with adjustable posture. Background Art

[0002] Quartz crucibles are widely used in glass melting, glass deep processing, metallurgy, electronics, chemical industry, aerospace and other fields due to their small thermal expansion coefficient, low thermal conductivity, good thermal shock stability, electrical properties, and chemical corrosion resistance. Crucibles are key components of photovoltaic single crystal furnaces. They are made of high-purity quartz sand and are mainly used to hold molten silicon and make crystal rods required for subsequent processes. During the crystal pulling process, the inner layer is in direct contact with the solution, which has a more significant impact on the crystallization of silicon and the quality of single crystal silicon. After the quartz crucible is produced, the inner wall needs to be cleaned, and the outer wall needs to be polished and cleaned. The crucible is first transported to the polishing station by a conveyor belt for outer wall polishing. After polishing, it is transported to the cleaning station for cleaning. During the cleaning process, the crucible needs to be turned over to complete the cleaning of the inner and outer walls of the crucible. The inner and outer walls of the crucible are distributed on two cleaning stations. The inner wall of the crucible is first cleaned, and then it is transported to the outer wall. During the cleaning process, the crucible needs to be turned 180°, so that the cleaning water inside the crucible can flow out, and the water for cleaning the outer wall will not enter the crucible. The existing conveying mechanism cannot complete the turning of the crucible, and basically adopts a mechanical arm or a clamping tooling mechanism to grab the crucible and turn it over. Due to the large volume and heavy weight of the quartz crucible, in order to prevent the crucible from falling off, a strong clamping force needs to be applied to the crucible, which is easy to deform the crucible and cause unqualified quality. The cost of the crucible is very high, and a high unqualified rate will greatly increase the production cost of the crucible. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a crucible conveying device with adjustable posture to solve the deficiencies of the prior art.

[0004] The objective of the present invention is achieved through the following technical solutions: a crucible conveying device with adjustable posture, comprising a front conveyor and a rear conveyor, a flipping mechanism is arranged between the front conveyor and the rear conveyor, the flipping mechanism comprises a top plate, an L-shaped support, a lower pressure plate and a flipping frame, two L-shaped support members are arranged at intervals at the bottom of the top plate along a conveying direction perpendicular to the front conveyor, the L-shaped support member has horizontal movement freedom, the moving direction of the L-shaped support member is perpendicular to the conveying direction of the front conveyor, the lower pressure plate is arranged below the top plate, and the top plate is provided with a plurality of L-shaped support members. The lower pressing plate has the freedom to move along the height direction of the L-shaped support member, the lower pressing plate and the L-shaped support member form a C shape, a limit assembly is arranged on the horizontal rod of the L-shaped support member, the limit assembly includes a slide and a limit block, the slide is slidably arranged in the horizontal rod, the moving direction of the slide is parallel to the conveying direction of the front conveyor, the limit block is slidably installed above the slide, the slide moves along the height direction of the L-shaped support member, rotating spindles are fixed on both sides of the top plate, and the rotating spindles are rotatably connected to the flip frame;

[0005] The top surface of the horizontal rod is smoothly polished. The front conveyor includes a base and two belt conveyors. The two belt conveyors are arranged on the top of the base along a conveying direction perpendicular to the crucible. The belt conveyor is located between the two L-shaped support members, and the arrangement spacing between the two belt conveyors can be adjusted.

[0006] Furthermore, a friction limiting mechanism is provided on one side opposite to the two L-shaped support members, and the friction limiting mechanism includes a slider, a limiting belt and a fixed block. The slider is slidably arranged on the top of the top plate, and the slider has the freedom to move along the conveying direction of the front conveyor. The fixed block is fixed to the bottom of the horizontal rod, and the two ends of the limiting belt are respectively connected to the slider and the fixed block, and a part of the crucible protrudes from the L-shaped support member to squeeze the limiting belt.

[0007] Furthermore, a horizontal slide groove is provided on the top of the top plate, the slider is slidably arranged in the horizontal slide groove, a spring is provided in the horizontal slide groove, both ends of the spring are respectively connected to the slider and the top plate, a pressure sensor is installed in the horizontal slide groove, the pressure axis of the pressure sensor is located on the moving path of the slider, and when the crucible squeezes the limiting belt, the spring is in a stretched state.

[0008] Furthermore, an adjustment cavity is provided in the horizontal rod, a lead screw is rotatably provided in the adjustment cavity, the slide seat is threadedly mounted on the lead screw, the slide seat is slidably fitted in the adjustment cavity, and one end of the lead screw passes through the horizontal rod and is fixed with an adjustment nut.

[0009] Furthermore, a strip slide groove is provided on the top surface of the horizontal rod, and the strip slide groove is connected to the adjusting chamber. A telescopic rod is connected to the top of the slide, and the end of the telescopic rod away from the slide is connected to the limit block. A return spring is sleeved on the telescopic rod, and the two ends of the return spring are respectively connected to the limit block and the slide. A wedge-shaped surface is provided on the end of the limit block away from the vertical rod in the L-shaped support member.

[0010] Furthermore, a mounting groove is provided at the bottom of the top plate along a conveying direction perpendicular to the front conveyor, a bidirectional threaded screw is rotatably arranged in the mounting groove, two threaded segments of the bidirectional threaded screw with opposite thread rotation directions are threadedly fitted with screw sliders, the screw sliders are slidably adapted to the mounting grooves, the two screw sliders respectively drive the two L-shaped support members to move, a screw motor is installed on the top of the top plate, and the output shaft of the screw motor is connected to the bidirectional threaded screw via a coupling.

[0011] Furthermore, a support groove is provided at the bottom of the top plate, and the support groove is parallel to the mounting groove. A high-strength slide bar is fixed in the support groove, and the two L-shaped support members are slidably mounted on the high-strength slide bar. A strip groove connecting to the mounting groove is provided on the side wall of the support groove, and a toggle groove is provided on the side of the L-shaped support member close to the lead screw slider, and a toggle block is connected and fixed to the lead screw slider, one end of the toggle block passes through the strip groove and is located in the toggle groove, and the side wall of the toggle block contacts the inner side wall of the toggle groove, and a gap is formed between the top surface of the toggle block and the inner top wall of the toggle groove.

[0012] Furthermore, a downward pressure cylinder is vertically installed on the top of the top plate, and the telescopic shaft of the downward pressure cylinder movably passes through the top plate to connect the lower pressure plate. Two linear drive modules are installed on the top of the base along a conveying direction perpendicular to the crucible. The conveying frames of the two belt conveyors are respectively installed on the module slides of the two linear drive modules. Both ends of the belt conveyor are correspondingly provided with slide rails, and the slide rails are installed on the base. Both ends of the bottom of the conveying frame are connected with slide rail sliders, and the slide rails of the slide rail sliders are fitted on the slide rails. The structure of the rear conveyor is the same as that of the front conveyor.

[0013] Furthermore, the turning frame includes a fixed support and a lifting cylinder, two of the fixed supports are arranged along a conveying direction perpendicular to the front conveyor, a lifting support is slidably penetrated through the top of the fixed support, the cylinder body of the lifting cylinder is installed on the fixed support, the telescopic shaft of the lifting cylinder is connected to the lifting support, the two rotating spindles are respectively rotatably connected to the two lifting supports, and a driving mechanism is installed on one of the lifting supports, and the driving mechanism is used to drive the rotating spindle on the lifting support to rotate.

[0014] Furthermore, the driving mechanism includes a driving cylinder, a rack and a pinion, the pinion is mounted on the rotating main shaft, the rack is slidably arranged on the lifting support, the pinion engages with the rack, the cylinder body of the driving cylinder is installed on the lifting support, and the telescopic shaft of the driving cylinder is connected to one end of the rack.

[0015] The beneficial effects of the present invention are:

[0016] 1. The distance between the two L-shaped support members is smaller than the diameter of the crucible. The crucible is conveyed to the L-shaped support member by the front conveyor, and the crucible is supported by the horizontal rod. The crucible stops after contacting the vertical rod of the L-shaped support member. At this time, the limit block pops up and contacts the side wall of the crucible, so that the crucible is restricted between the vertical rod and the limit block. Then the flipping mechanism is started, driving the crucible to flip 180°. The crucible is flipped by supporting, and there is no need to clamp the crucible for flipping, which will not cause damage to the crucible, greatly reducing the defective rate and reducing the production cost.

[0017] 2. When the crucible is transported into place in the L-shaped support, the crucible squeezes the limiting belt to make the slider contact the pressure sensor, and the pressure sensor feeds back the crucible flip signal, driving the crucible to complete the flip. At the same time, the limiting belt presses the crucible between the limiting block and the limiting belt through the force of the spring. A large friction force is also generated between the limiting belt and the crucible, which has a better limiting effect and will not damage the crucible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 3 ;

[0021] Figure 4 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 4 ;

[0022] Figure 5 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 5 ;

[0023] Figure 6 The structure of a crucible conveying device with adjustable posture according to the present invention is shown in FIG. Figure 6 ;

[0024] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 8 for Figure 4 Enlarged view of point C in the middle;

[0026] Fig. 9 A cross-sectional view of a top plate in a crucible conveying device with adjustable posture according to the present invention;

[0027] Fig.10 for Fig. 9 Enlarged view of point B in the middle;

[0028] In the figure, 1-front conveyor, 2-rear conveyor, 3-top plate, 4-L-shaped support, 5-lower pressure plate, 6-turn frame, 7-slide seat, 8-limiting block, 9-rotating spindle, 10-base, 11-slider, 12-limiting belt, 13-fixed block, 14-horizontal slide, 15-spring, 16-pressure sensor, 17-adjusting chamber, 18-screw, 19-adjusting nut, 20-strip slide, 21-telescopic rod, 22-reset spring, 23-wedge surface, 24-installation Grooving, 25-bidirectional threaded screw, 26-screw slider, 27-screw motor, 28-support groove, 29-high-strength slide bar, 30-bar groove, 31-slide groove, 32-slide block, 33-down-pressure cylinder, 34-belt conveyor, 35-linear drive module, 36-slide rail, 37-slide rail slider, 38-fixed support, 39-lifting cylinder, 40-lifting support, 41-rack, 42-pinion, 43-drive cylinder, 44-connecting hole, 45-screw. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0030] Embodiment 1

[0031] like Figures 1 to 10As shown, a crucible conveying device with adjustable posture includes a front conveyor 1 and a rear conveyor 2, a flip mechanism is arranged between the front conveyor 1 and the rear conveyor 2, and the flip mechanism includes a top plate 3, an L-shaped support member 4, a lower pressure plate 5 and a flip frame 6, and two L-shaped support members 4 are arranged at intervals at the bottom of the top plate 3 along a conveying direction perpendicular to the front conveyor 1, and the L-shaped support member 4 has horizontal movement freedom, and the movement direction of the L-shaped support member 4 is perpendicular to the conveying direction of the front conveyor 1, wherein the L-shaped support member 4 is connected to the vertical rod member through a horizontal rod member to form an L-shaped A lower pressing plate 5 is arranged below the top plate 3, and the lower pressing plate 5 has the freedom to move along the height direction of the L-shaped support member 4. The lower pressing plate 5 and the L-shaped support member 4 form a C shape. A limit assembly is arranged on the horizontal rod of the L-shaped support member 4, and the limit assembly includes a slide 7 and a limit block 8. The slide 7 is slidably arranged in the horizontal rod, and the moving direction of the slide 7 is parallel to the conveying direction of the front conveyor 1. The limit block 8 is slidably installed above the slide 7. The slide 7 moves along the height direction of the L-shaped support member 4. Rotating spindles 9 are fixed on both sides of the top plate 3. The shaft 9 is rotatably connected to the turning frame 6; the top surface of the horizontal rod is polished and smoothed. The front conveyor 1 includes a base 10 and two belt conveyors 34. Two belt conveyors 34 are arranged on the top of the base 10 along a conveying direction perpendicular to the crucible. The belt conveyor 34 is located between the two L-shaped support members 4. The arrangement spacing between the two belt conveyors 34 can be adjusted. The crucible blank after sintering is transported to the polishing tooling through the front conveyor 1. The outer wall of the crucible is polished first. For the convenience of polishing, the crucible is placed upside down on the front conveyor 1. The outer wall of the crucible is fully polished by the polishing equipment, and then the crucible is flipped 180 degrees by the flipping mechanism, so that the crucible is placed upright on the rear conveyor 2, and the crucible is transported to the cleaning work by the rear conveyor 2. The inner wall of the crucible is first cleaned by a high-pressure water gun. After the cleaning is completed, the crucible is flipped by the next flipping mechanism, so that the crucible is placed upside down again and transported to the next cleaning work. Finally, the outer wall of the crucible is cleaned, and the water on the inner wall of the crucible is drained at the same time, so as to realize the conveying and flipping of the crucible in the subsequent processing process, and it is convenient to process the inner and outer walls of the crucible;The specific flipping process is as follows: first, the spacing between the two L-shaped support members 4 is adjusted according to the size of the crucible, so that the distance between the two L-shaped support members 4 is greater than the radius of the crucible and smaller than the diameter of the crucible, so that the two L-shaped support members can well support the crucible, and at the same time, the side walls of the L-shaped support members 4 can contact the side walls of the crucible to complete the limit, effectively preventing the crucible from slipping during the flipping process, and then the position of the limit block 8 is adjusted according to the size of the crucible, and the position of the limit block 8 is adjusted by moving the slide seat 7, so that after the crucible contacts the L-shaped support member 4, the limit block 8 can bounce up and contact the side wall of the crucible, and the two limit blocks 8 and the positions where the two L-shaped support members 4 contact the crucible are horizontally connected to form a rectangle. Aside from the production error of the crucible and the error of the turning mechanism, the center of the rectangle is coaxial with the center of the crucible, and the diameter of the crucible is larger than the length and width of the rectangle, so that the crucible can be well stuck on the L-shaped support member 4, limiting the freedom of movement of the crucible on the horizontal plane, ensuring that the crucible will not slip when turning, so that the crucible can be accurately turned over and landed on the rear conveyor 2. After the position adjustment of the turning mechanism is completed, it is put into use, and the height of the conveying surface of the front conveyor 1 is flush with the top surface of the horizontal rod, and the front conveyor 1 The crucible is transported to the L-shaped support 4 and supported by the horizontal rod. During the transportation process, the limit block 8 moves into the horizontal rod to prevent interference with the crucible. When the crucible contacts the vertical rod of the L-shaped support 4, the front conveyor 1 stops conveying. At this time, the limit block 8 pops up and contacts the crucible, and cooperates with the vertical rod to complete the horizontal limitation of the crucible. Then, the lower pressure plate 5 moves downward close to the crucible, so that the lower pressure plate 5 contacts the crucible, and cooperates with the horizontal rod to complete the vertical limitation of the crucible. Then, the rotating main shaft 9 drives the top plate 3 to rotate, and the top plate 3 drives the L-shaped support 4 and the top plate 3 thereon. The crucible rotates and turns over 180°. At this time, the crucible is located between the rear conveyor 2 and the turning mechanism. The height of the conveying surface of the rear conveyor 2 is lower than the height of the top surface of the lower pressing plate 5. Then the lower pressing plate 5 drives the crucible to move downward, so that the crucible moves to the bottom of the limit block 8 and contacts the conveying surface of the rear conveyor 2, so that the crucible avoids the limit block 8 and can be smoothly moved out of the turning mechanism. Finally, the rear conveyor 2 is started, driving the crucible to be transported forward to the cleaning station for processing, thereby realizing the turning of the crucible during the conveying process, without causing damage to the crucible, greatly reducing the defective rate and reducing the production cost. ;

[0032] Furthermore, the turning frame 6 includes a fixed support 38 and a lifting cylinder 39. Two fixed supports 38 are arranged along the conveying direction perpendicular to the front conveyor 1. A lifting support 40 is slidably penetrated on the top of the fixed support 38. The cylinder body of the lifting cylinder 39 is installed on the fixed support 38. The telescopic shaft of the lifting cylinder 39 is connected to the lifting support 40. The two rotating spindles 9 are respectively rotatably connected to the two lifting supports 40. A driving mechanism is installed on one of the lifting supports 40. The driving mechanism is used to drive the rotating spindle 9 on the lifting support 40 to rotate. The driving mechanism drives the rotating spindle 9 connected thereto to rotate, thereby driving the crucible to perform a turning operation. The lifting cylinder 39 drives the lifting support 40 to slide on the fixed support 38 to adjust the working height of the turning mechanism so that the turning mechanism can adapt to the conveying height of the front conveyor 1 and the rear conveyor 2.

[0033] Embodiment 2

[0034] Due to the heavy weight of the crucible, the L-shaped support 4 needs to keep the rotating spindle 9 locked when carrying the crucible. If a motor is used to drive the rotating spindle 9, the motor needs to be self-locked to carry the torque brought by the crucible, which greatly reduces the service life of the motor. Therefore, based on the first embodiment, Figure 1 and Figure 2 As shown, the driving mechanism includes a driving cylinder 43, a rack 41 and a pinion 42. The pinion 42 is sleeved on the rotating main shaft 9, the rack 41 is slidably set on the lifting support 40, the pinion 42 meshes with the rack 41, and the cylinder body of the driving cylinder 43 is installed on the lifting support 40. The telescopic shaft of the driving cylinder 43 is connected to one end of the rack 41. The rack 41 is driven to move by the driving cylinder 43, and the pinion 42 is driven to rotate by the rack 41. The pinion 42 drives the rotating main shaft 9 to rotate. The cylinder is used as the driving source. The cylinder has a high action strength and can fully adapt to the large torque brought by the crucible. The linear motion is converted into rotational motion by means of gears and racks. Since it cannot rotate continuously, the rack 41 is driven to move back and forth by the telescopic driving cylinder 43, so that the rotating main shaft 9 is rotated 180° to flip the crucible, or the rotating main shaft 9 is reversely rotated 180° to reset, so that the crucible can be smoothly flipped.

[0035] Embodiment 3

[0036] Since the position of the crucible on the front conveyor 1 is uncertain, it is impossible to accurately control the downtime of the front conveyor 1. It is possible that after the crucible contacts the vertical rod, the front conveyor 1 is still in the starting state, resulting in the crucible being squeezed. Therefore, based on the second embodiment, as shown in FIG. Figures 1 to 10As shown, a friction limiting mechanism is provided on the opposite side of the two L-shaped support members 4, and the friction limiting mechanism includes a slider 11, a limiting belt 12 and a fixed block 13. The slider 11 is slidably arranged on the top of the top plate 3, and the slider 11 has the freedom to move along the conveying direction of the front conveyor 1. The fixed block 13 is fixed to the bottom of the horizontal rod. The two ends of the limiting belt 12 are respectively connected to the slider 11 and the fixed block 13. The partially protruding L-shaped support member 4 of the crucible squeezes the limiting belt 12. A horizontal slide groove 14 is opened on the top of the top plate 3. The slider 11 is slidably arranged in the horizontal slide groove 14. A spring 15 is arranged in the horizontal slide groove 14. The two ends of the spring 15 are respectively connected to the slider 11 and the top plate 3. A pressure sensor 16 is installed in the horizontal slide groove 14. The pressure axis of the pressure sensor 16 is located on the moving path of the slider 11. When the crucible squeezes the limiting belt 12, the spring 15 is in a stretched state. Two limiting belts 12 are arranged. When the crucible contacts the vertical rod, the limiting belt 12 will be squeezed first, and the limiting belt 12 drives the slider 11 to move. The slider 11 will stretch the spring 15 and move it close to the pressure sensor 16. When the crucible contacts the vertical rod, the slider 11 squeezes the pressure axis of the pressure sensor 16, so that the pressure sensor 16 receives the signal that the crucible is in place. At this time, the front conveyor 1 stops running, and the rotating spindle 9 rotates to drive the crucible to flip 180°. The limiting belt 12 presses the crucible between the limiting block 8 and the limiting belt 12 through the force of the spring 15. A large friction force will also be generated between the limiting belt 12 and the crucible, thereby having a better limiting effect and will not crush the crucible. After the crucible is transported from the L-shaped support 4 to the rear conveyor 2, the limiting belt 12 recovers under the reaction force of the spring 15, and the rotating spindle 9 rotates 180° in the opposite direction to reset, and the flipping operation on the next crucible is continued. In specific implementation, the limiting belt 12 is penetrated by a plurality of connecting holes 44 along its length direction, and screws 45 pass through the connecting holes 44 to be threadedly connected to the slider 11. The sizes of the crucibles are different, and the lengths of the protruding vertical rods to squeeze the limiting belt 12 are also different. The limiting belt 12 is connected to the slider 11 in a detachable manner. The position of the limiting belt 12 connected to the slider 11 is adjusted according to the size of the crucible, thereby driving the slider 11 to move and adjust the initial position, so that after the crucible contacts the vertical rod, the slider 11 can smoothly act on the pressure axis of the pressure sensor 16. Preferably, in order to eliminate the influence of errors, an elastic pad is fixed to the end of the slider 11 close to the pressure sensor 16, so that the elastic pad contacts the pressure sensor 16 to generate a pressure signal. When the pressure signal tends to be stable, it indicates that the crucible has been delivered to the right place.

[0037] Embodiment 4

[0038] Based on the third embodiment, Figures 1 to 7As shown, an adjusting chamber 17 is provided in the horizontal rod, a lead screw 18 is rotatably provided in the adjusting chamber 17, the slide 7 is threadedly mounted on the lead screw 18, the slide 7 is slidably fitted in the adjusting chamber 17, one end of the lead screw 18 passes through the horizontal rod and is fixed with an adjusting nut 19, the adjusting nut 19 is rotated to drive the lead screw 18 to rotate, so that the slide 7 makes a linear motion along the axial direction of the lead screw 18, so that the slide 7 drives the limit block 8 to move along the axial direction of the lead screw 18, and the distance between the limit block 8 and the vertical rod is adjusted, so that the position of the limit block 8 is adjusted according to the size of the crucible, so that the crucible is limited between the vertical rod and the limit block 8; a strip slide groove 20 is provided on the top surface of the horizontal rod, the strip slide groove 20 is connected to the adjusting chamber 17, and a telescopic rod is connected to the top of the slide 7 21, one end of the telescopic rod 21 away from the sliding seat 7 is connected to the limit block 8, and a return spring 22 is sleeved on the telescopic rod 21. The two ends of the return spring 22 are respectively connected to the limit block 8 and the sliding seat 7. The end of the limit block 8 away from the vertical rod in the L-shaped support member 4 is provided with a wedge surface 23. When the crucible slides on the horizontal rod, the wedge surface 23 of the limit block 8 is squeezed. Under the action of the wedge surface 23, the limit block 8 compresses the return spring 22 and moves into the horizontal rod, so that the crucible can smoothly pass through the limit block 8 to contact the vertical rod. At this time, after the limit block 8 loses the obstruction of the crucible, it bounces up under the action of the return spring 22, so that a space is formed between the limit block 8 and the vertical rod to limit the movement of the crucible, thereby ensuring that the crucible will not deviate during the flipping process.

[0039] Embodiment 5

[0040] Based on the fourth embodiment, Figures 1 to 6 As shown, a mounting groove 24 is provided at the bottom of the top plate 3 along a conveying direction perpendicular to the front conveyor 1, and a bidirectional threaded screw 25 is rotatably arranged in the mounting groove 24. Screw sliders 26 are threadedly mounted on the two threaded sections of the bidirectional threaded screw 25 with opposite thread rotation directions, and the screw sliders 26 are slidably adapted to the mounting groove 24. The two screw sliders 26 respectively drive the two L-shaped support members 4 to move, and a screw motor 27 is installed on the top of the top plate 3. The output shaft of the screw motor 27 is connected to the bidirectional threaded screw 25 through a coupling transmission, and the screw motor 27 drives the bidirectional threaded screw 25 to rotate. Since the thread rotation directions of the two screw sliders 26 are opposite, the moving directions of the two screw sliders 26 are opposite, and the two screw sliders 26 respectively drive the two L-shaped support members 4 to move, thereby adjusting the distance between the two L-shaped support members 4 to adapt to different crucible sizes.

[0041] Embodiment 6

[0042] If the L-shaped support member 4 is directly connected to the screw slider 26, the weight of the crucible will be borne by the bidirectional threaded screw 25. Under long-term operation, the bidirectional threaded screw 25 is easily deformed, or the thread of the bidirectional threaded screw 25 is worn and affects the movement. Therefore, based on the fifth embodiment, as shown in FIG. Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, a support groove 28 is provided at the bottom of the top plate 3, and the support groove 28 is parallel to the mounting groove 24. A high-strength slide bar 29 is fixed in the support groove 28. Both L-shaped support members 4 are slidably mounted on the high-strength slide bar 29. A strip groove 30 connected to the mounting groove 24 is provided on the side wall of the support groove 28. A toggle groove 31 is provided on the side of the L-shaped support member 4 close to the lead screw slider 26. A toggle block 32 is fixed to the lead screw slider 26. One end of the toggle block 32 passes through the strip groove 30 and is located in the toggle groove 31. The side wall of the toggle block 32 contacts the inner side wall of the toggle groove 31, and a gap is formed between the top surface of the toggle block 32 and the inner top wall of the toggle groove 31. The high-strength slide bar 29 is made of alloy steel, and the L-shaped support member 4 is installed on the high-strength slide bar 29. The high-strength slide bar 29 carries the L-shaped support member 4 and the crucible thereon. When the lead screw slider 26 slides, the toggle block 32 drives the L-shaped support member 4 to move on the high-strength slide bar 29. Due to the gap formed between the top surface of the toggle block 32 and the inner top wall of the toggle groove 31, the toggle block 32 and the L-shaped support member 4 do not contact in the gravity direction of the crucible, so that the bidirectional threaded screw 25 does not bear the gravity of the crucible, and then the bidirectional threaded screw 25 is not affected by the gravity of the crucible, which greatly extends the service life of the bidirectional threaded screw 25.

[0043] Embodiment 7

[0044] Based on Example 6, Figures 1 to 6 As shown, a downward pressure cylinder 33 is vertically installed on the top of the top plate 3, and the telescopic shaft of the downward pressure cylinder 33 movably passes through the top plate 3 to connect the downward pressure plate 5, and the downward pressure cylinder 33 drives the downward pressure plate 5 to move up and down, and cooperates with the horizontal rod to contact the two ends of the axial direction of the crucible to complete the limit. Two linear drive modules 35 are installed on the top of the base 10 along the conveying direction perpendicular to the crucible, and the conveying frames of the two belt conveyors 34 are respectively installed on the module slides of the two linear drive modules 35. Slide rails 36 are correspondingly arranged at both ends of the belt conveyor 34, and the slide rails 36 are installed on the base 10. Slide rail sliders 37 are connected to the two ends of the bottom of the conveying frame, and the slide rail sliders 37 are matched on the slide rails 36. The structure of the rear conveyor 2 is the same as that of the front conveyor 1. The belt conveyor 34 is driven to move by the linear drive module 35, so as to adjust the distance between the two belt conveyors 34, so as to adjust the distance between the two belt conveyors 34 according to the diameter of the crucible, so that it can adapt to the transportation of crucibles of different sizes.

Claims

1. A crucible conveying device with adjustable posture, comprising a front conveyor (1) and a rear conveyor (2), characterized in that: A turnover mechanism is arranged between the front conveyor (1) and the rear conveyor (2), and the turnover mechanism comprises a top plate (3), an L-shaped support member (4), a lower pressure plate (5) and a turnover frame (6). Two L-shaped support members (4) are arranged at intervals at the bottom of the top plate (3) along a conveying direction perpendicular to the front conveyor (1). The L-shaped support members (4) have horizontal freedom of movement. The moving direction of the L-shaped support members (4) is perpendicular to the conveying direction of the front conveyor (1). The lower pressure plate (5) is arranged below the top plate (3). The lower pressure plate (5) has the freedom to move in the height direction of the L-shaped support members (4). The lower pressing plate (5) and the L-shaped support member (4) form a C shape, a limit assembly is arranged on the horizontal rod of the L-shaped support member (4), the limit assembly comprises a slide seat (7) and a limit block (8), the slide seat (7) is slidably arranged in the horizontal rod, the moving direction of the slide seat (7) is parallel to the conveying direction of the front conveyor (1), the limit block (8) is slidably installed above the slide seat (7), the slide seat (7) moves along the height direction of the L-shaped support member (4), and rotating spindles (9) are fixed on both sides of the top plate (3), and the rotating spindles (9) are rotatably connected to the flip frame (6); The top surface of the horizontal rod is polished and smooth, the front conveyor (1) comprises a base (10) and two belt conveyors (34), the two belt conveyors (34) are arranged on the top of the base (10) along a conveying direction perpendicular to the crucible, the belt conveyor (34) is located between the two L-shaped support members (4), and the arrangement spacing between the two belt conveyors (34) is adjustable; A friction limiting mechanism is provided on one side opposite to the two L-shaped support members (4), the friction limiting mechanism comprising a slider (11), a limiting belt (12) and a fixed block (13); the slider (11) is slidably arranged on the top of the top plate (3); the slider (11) has the freedom to move along the conveying direction of the front conveyor (1); the fixed block (13) is fixed to the bottom of the horizontal rod; two ends of the limiting belt (12) are respectively connected to the slider (11) and the fixed block (13); a part of the crucible protrudes from the L-shaped support member (4) to squeeze the limiting belt (12); A horizontal slide groove (14) is provided at the top of the top plate (3), the slider (11) is slidably arranged in the horizontal slide groove (14), a spring (15) is arranged in the horizontal slide groove (14), two ends of the spring (15) are respectively connected to the slider (11) and the top plate (3), a pressure sensor (16) is installed in the horizontal slide groove (14), the pressure axis of the pressure sensor (16) is located on the moving path of the slider (11), and when the crucible squeezes the limiting belt (12), the spring (15) is in a stretched state.

2. The crucible conveying device with adjustable posture according to claim 1, characterized in that: An adjustment cavity (17) is provided in the horizontal rod, a lead screw (18) is rotatably provided in the adjustment cavity (17), the slide seat (7) is threadedly mounted on the lead screw (18), the slide seat (7) is slidably fitted in the adjustment cavity (17), and one end of the lead screw (18) passes through the horizontal rod and is fixed with an adjustment nut (19).

3. The crucible conveying device with adjustable posture according to claim 2, characterized in that: A strip-shaped slide groove (20) is provided on the top surface of the horizontal rod, and the strip-shaped slide groove (20) is connected to the adjustment chamber (17). A telescopic rod (21) is connected to the top of the slide seat (7), and one end of the telescopic rod (21) away from the slide seat (7) is connected to the limit block (8). A return spring (22) is sleeved on the telescopic rod (21), and two ends of the return spring (22) are respectively connected to the limit block (8) and the slide seat (7). A wedge-shaped surface (23) is provided on one end of the limit block (8) away from the vertical rod in the L-shaped support member (4).

4. The crucible conveying device with adjustable posture according to claim 1, characterized in that: A mounting groove (24) is provided at the bottom of the top plate (3) along a direction perpendicular to the conveying direction of the front conveyor (1), a bidirectional threaded screw (25) is rotatably arranged in the mounting groove (24), two threaded sections of the bidirectional threaded screw (25) with opposite thread rotation directions are both threadedly sleeved with a screw slider (26), the screw slider (26) is slidably adapted to the mounting groove (24), the two screw sliders (26) respectively drive the two L-shaped support members (4) to move, a screw motor (27) is installed on the top of the top plate (3), and the output shaft of the screw motor (27) is connected to the bidirectional threaded screw (25) through a coupling.

5. The crucible conveying device with adjustable posture according to claim 4, characterized in that: A support groove (28) is provided at the bottom of the top plate (3), and the support groove (28) is parallel to the mounting groove (24). A high-strength slide bar (29) is fixed in the support groove (28). The two L-shaped support members (4) are slidably mounted on the high-strength slide bar (29). A strip groove (30) communicating with the mounting groove (24) is provided on the side wall of the support groove (28). A toggle groove (31) is provided on the side of the L-shaped support member (4) close to the lead screw slider (26). A toggle block (32) is connected and fixed to the lead screw slider (26). One end of the toggle block (32) passes through the strip groove (30) and is located in the toggle groove (31). The side wall of the toggle block (32) contacts the inner side wall of the toggle groove (31), and a gap is formed between the top surface of the toggle block (32) and the inner top wall of the toggle groove (31).

6. The crucible conveying device with adjustable posture according to claim 1, characterized in that: A downward pressure cylinder (33) is vertically installed on the top of the top plate (3), and the telescopic shaft of the downward pressure cylinder (33) movably passes through the top plate (3) to connect the downward pressure plate (5). Two linear drive modules (35) are installed on the top of the base (10) along a conveying direction perpendicular to the crucible. The conveying frames of the two belt conveyors (34) are respectively installed on the module slides of the two linear drive modules (35). Both ends of the belt conveyor (34) are correspondingly provided with slide rails (36), and the slide rails (36) are installed on the base (10). Both ends of the bottom of the conveying frame are connected to slide rail sliders (37), and the slide rails of the slide rail sliders (37) are matched on the slide rails (36). The structure of the rear conveyor (2) is the same as that of the front conveyor (1).

7. The crucible conveying device with adjustable posture according to claim 1, characterized in that: The tilting frame (6) includes a fixed support (38) and a lifting cylinder (39), two fixed supports (38) are arranged along a conveying direction perpendicular to the front conveyor (1), a lifting support (40) is slidably penetrated through the top of the fixed support (38), a cylinder body of the lifting cylinder (39) is installed on the fixed support (38), a telescopic shaft of the lifting cylinder (39) is connected to the lifting support (40), two rotating spindles (9) are respectively connected to the two lifting supports (40), and a driving mechanism is installed on one of the lifting supports (40), and the driving mechanism is used to drive the rotating spindle (9) on the lifting support (40) to rotate.

8. The crucible conveying device with adjustable posture according to claim 7, characterized in that: The driving mechanism comprises a driving cylinder (43), a rack (41) and a pinion (42); the pinion (42) is sleeved on the rotating main shaft (9); the rack (41) is slidably arranged on the lifting support (40); the pinion (42) meshes with the rack (41); a cylinder body of the driving cylinder (43) is mounted on the lifting support (40); and a telescopic shaft of the driving cylinder (43) is connected to one end of the rack (41).

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