Large-size quartz crucible demolding auxiliary tool

Abstract

The invention discloses a large-size quartz crucible demolding auxiliary tool, and relates to the technical field of crucibles. A mold is fixed to the upper surface of the machining table. A bottom plate is fixed to the bottom of the mold. A push plate is slidably connected into the mold. A sliding groove is fixed to one side of the machining table, and a sliding block is slidably connected into the sliding groove. A connecting plate is fixed to the upper surface of the sliding block. A support is fixed to the top of the connecting plate. A storage box is fixed to the upper surface of the support and fixedly provided with an oil pump through one end of a first connecting pipe. Under the action of the splitter plate, the large-size quartz crucible is large in size and weight, the contact area between the large-size quartz crucible and the inner wall of the mold is larger, and the friction force is obviously increased during demolding, so that lubricating oil is uniformly sprayed on the inner wall of the mold through the nozzle, a lubricating film can be formed between the crucible and the mold, and the friction resistance between the crucible and the mold is greatly reduced; and the demolding process is more labor-saving, the damage of stress generated by friction to the crucible is reduced, and the yield is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of crucibles, and in particular relates to a demoulding auxiliary tool for a large-sized quartz crucible. Background Art

[0002] Quartz crucibles, due to their high purity, high-temperature resistance, and corrosion resistance, are widely used in the production of single-crystal and polycrystalline silicon in the semiconductor and photovoltaic industries. In these industries, quartz crucibles are primarily used to hold and melt high-purity silicon materials, and their quality directly impacts the performance of the final product. With the rapid development of the photovoltaic and semiconductor industries, market demand for large-sized quartz crucibles is increasing. Producing large-sized quartz crucibles can increase single-furnace output and reduce production costs. However, as crucible size increases, mold release issues become increasingly prominent during the production process.

[0003] The volume and weight of large-sized quartz crucibles increase significantly, and the contact area with the inner wall of the mold is greatly expanded. The friction between the two increases sharply during demolding. In traditional demolding methods, manual or mechanical direct force can easily cause stress concentration in the crucible due to friction, resulting in surface scratches, cracks, or even overall breakage, seriously reducing the yield and increasing production costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a demolding auxiliary tool for large-sized quartz crucibles. Through the action of the diverter plate, due to the large volume and weight of the large-sized quartz crucible, the contact area with the inner wall of the mold is also larger, and the friction force during demolding is significantly increased. The lubricating oil is evenly sprayed on the inner wall of the mold through the nozzle, which can form a lubricating film between the crucible and the mold, greatly reducing the frictional resistance between the two, making the demolding process more labor-saving, reducing the damage to the crucible caused by the stress generated by friction, and improving the yield. It solves the problem that in the existing demolding method, manual or mechanical direct force can easily cause the crucible to generate stress concentration due to friction, resulting in surface scratches, cracks or even overall fragmentation, seriously reducing the yield and increasing production costs.

[0005] To achieve the above object, the present invention provides the following technical solutions: A large-sized quartz crucible demoulding auxiliary tool comprises a processing table, on the upper surface of which a mold is fixed; A bottom plate is fixed to the bottom of the mold, and a push plate is slidably connected to the inside of the mold; A slide is fixed on one side of the processing table, and a slider is slidably connected inside the slide; A connecting plate is fixed on the upper surface of the slider, and a bracket is fixed on the top of the connecting plate; A storage box is fixed on the upper surface of the bracket, an oil pump is fixed to the storage box through one end of a first connecting pipe, and an output end of the oil pump is connected to a diverter plate through a second connecting pipe; A plurality of nozzles are fixed on the outside of the diverter plate; A first hydraulic cylinder is fixed on the bottom of the bracket, and an output shaft of the first hydraulic cylinder is fixedly connected to the outer side of the diverter plate.

[0006] The present invention is further configured as follows: the slider is a "T"-shaped structure, and the slider matches the inner wall of the slide groove; A positioning plate is fixed on the upper surface of the processing table, and a tension spring is fixed on one side of the positioning plate.

[0007] The present invention is further configured as follows: a handle is fixed to one end of the tension spring, and a positioning rod is fixed to one end of the handle; A positioning hole is formed on one side of the sliding block, the positioning rod passes through the sliding groove, and one end of the positioning rod is clamped into the positioning hole.

[0008] The present invention is further configured as follows: a fixing plate is fixed on the upper surface of the processing table, and a second hydraulic cylinder is fixed on one side of the fixing plate; A push plate is fixed to the output shaft of the second hydraulic cylinder, and the push plate is an arc-shaped structure.

[0009] The present invention is further configured as follows: an extension plate is fixed to the bottom of the base plate, and a threaded tube is fixed to the surface of the extension plate; The threaded tube is internally threadedly connected to a threaded rod, one end of the threaded rod is fixed to a connecting rod, and one end of the connecting rod is fixed to a mounter; A motor is fixed on one end of the threaded rod away from the installer, and a telescopic rod is fixed between the motor and the extension plate.

[0010] The present invention is further configured as follows: a mounting shell is fixed to the bottom of the push plate, and positioning grooves are provided on both sides of the mounting shell; The installer includes a housing, a limit plate is fixed inside the housing, and springs are fixed on both sides of the limit plate; An adjustment plate is fixed to one end of the spring, and a clamping block is fixed to one side of the adjustment plate; The clamping block passes through the positioning slot.

[0011] The present invention is further configured as follows: a cooling groove is provided on the upper surface of the processing table, and a plurality of water filtering holes are provided on the surface of the cooling groove; A water collecting box is fixed at the bottom of the cooling tank, a drain pipe is fixed at one end of the water collecting box, and a valve is fixed on the outside of the drain pipe.

[0012] The present invention is further configured as follows: cooling plates are fixed on both sides of the cooling trough, and a plurality of water outlet holes are fixed on the surface of the cooling plates; The water outlet is connected to a water pump via a first water pipe, and the water pump input end is connected to a water storage tank via a second water pipe.

[0013] The present invention has the following beneficial effects: 1. The present invention utilizes the function of the diverter plate. Since the large-sized quartz crucible has a larger volume and weight, the contact area with the inner wall of the mold is also larger, and the friction force during demoulding is significantly increased. The lubricating oil is evenly sprayed on the inner wall of the mold through the nozzle, which can form a lubricating film between the crucible and the mold, greatly reducing the frictional resistance between the two, making the demoulding process more labor-saving, reducing the damage to the crucible caused by the stress generated by friction, and improving the yield rate.

[0014] 2. The present invention uses the cooling trough to prevent large-sized quartz crucibles from being deformed due to gravity or external forces when directly demolded. The cooling trough cooperates with the water outlet of the cooling plate to spray cold water, which can quickly reduce the crucible temperature and fix its shape quickly, thus avoiding dimensional deviation caused by slow cooling. This is particularly suitable for large-sized crucibles with high precision requirements.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The figure is a schematic structural diagram of a large-sized quartz crucible demoulding auxiliary tool according to the present invention.

[0018] Figure 2 It is a schematic diagram of the upward viewing angle structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the side view structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the present invention from a top view perspective.

[0021] Figure 5 For the present invention Figure 4 A partial enlarged view of point A in the middle.

[0022] Figure 6 It is a schematic diagram of the mold structure of the present invention.

[0023] Figure 7 It is a schematic diagram of the processing table structure of the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the installer of the present invention.

[0025] Figure 9It is a schematic diagram of the bottom structure of the push plate of the present invention.

[0026] Figure 10 Schematic diagram of the diverter plate structure of the present invention.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows: 1-processing table, 2-mold, 3-bottom plate, 4-push plate, 5-chute, 6-slider, 7-connecting plate, 8-bracket, 9-storage box, 10-oil pump, 11-manifold, 12-nozzle, 13-first hydraulic cylinder, 14-positioning plate, 15-tension spring, 16-handle, 17-positioning rod, 18-positioning hole, 19-fixed plate, 20-second hydraulic cylinder, 21-push plate, 22-extension plate, 23-screw Corrugated pipe, 24-threaded rod, 25-connecting rod, 26-installer, 27-motor, 28-telescopic rod, 29-mounting shell, 30-positioning groove, 31-shell, 32-limiting plate, 33-spring, 34-adjusting plate, 35-block, 36-cooling trough, 37-water filter hole, 38-water collecting tank, 39-drain pipe, 40-valve, 41-cooling plate, 42-water outlet, 43-water pump, 44-water storage tank. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] For specific embodiment 1, please refer to Figure 1-10The present invention is a demolding auxiliary tool for a large-sized quartz crucible, comprising a processing table 1, a mold 2 being fixed on the upper surface of the processing table 1; a bottom plate 3 being fixed to the bottom of the mold 2, a push plate 4 being slidably connected to the inside of the mold 2; a slide groove 5 being fixed to one side of the processing table 1, a slider 6 being slidably connected to the inside of the slide groove 5; a connecting plate 7 being fixed to the upper surface of the slider 6, a bracket 8 being fixed to the top of the connecting plate 7; a storage box 9 being fixed to the upper surface of the bracket 8, an oil pump 10 being fixed to one end of the storage box 9 through a first connecting pipe, and a diverter plate 11 being connected to the output end of the oil pump 10 through a second connecting pipe; a plurality of nozzles 12 being fixed to the outside of the diverter plate 11; a first hydraulic cylinder 13 being fixed to the bottom of the bracket 8, and the output shaft of the first hydraulic cylinder 13 being fixedly connected to the outside of the diverter plate 11.

[0032] Specifically, the slider 6 is a "T"-shaped structure, and the slider 6 matches the inner wall of the slide groove 5; a positioning plate 14 is fixed to the upper surface of the processing table 1, and a tension spring 15 is fixed to one side of the positioning plate 14.

[0033] Furthermore, a handle 16 is fixed to one end of the tension spring 15 , and a positioning rod 17 is fixed to one end of the handle 16 ; a positioning hole 18 is opened on one side of the slider 6 , the positioning rod 17 passes through the slide groove 5 , and one end of the positioning rod 17 is stuck in the positioning hole 18 .

[0034] The operation process of this embodiment is as follows: when the device is in use, if it is necessary to improve the efficiency of demoulding, the handle 16 can be pulled to disengage the positioning rod 17 from the positioning hole 18, and the bracket 8 can be pushed along the slide 5 to move to the top of the mold 2. The handle 16 is released, and the tension spring 15 is reset to drive the positioning rod 17 to re-engage and position, and the first hydraulic cylinder 13 is started. Its output shaft drives the diverter plate 11 to descend into the mold 2, and the oil pump 10 is turned on. The lubricating oil in the storage box 9 enters the diverter plate 11 through the first connecting pipe and the second connecting pipe, and is evenly sprayed on the inner wall of the mold 2 through a plurality of nozzles 12. The diverter plate 11 can be moved up and down by the first hydraulic cylinder 13 to spray, ensuring that deep cavity and large size molds can be sprayed. The bottom and top inner walls of the mold 2 are covered with lubricating oil to solve the problem of inadequate manual application. After lubrication is completed, the first hydraulic cylinder 13 drives the diverter plate 11 to rise and reset, the motor 27 reverses to make the push plate 4 fall back to the bottom of the mold 2, and the second hydraulic cylinder 20 drives the push plate 21 to retract; due to the large size and weight of the large-sized quartz crucible, the contact area with the inner wall of the mold 2 is also larger, and the friction force increases significantly during demoulding. The lubricating oil is evenly sprayed on the inner wall of the mold 2 through the nozzle 12, which can form a lubricating film between the crucible and the mold 2, greatly reducing the friction resistance between the two, making the demoulding process more labor-saving, reducing the damage to the crucible caused by the stress generated by friction, and improving the yield rate.

[0035] For specific embodiment 2, please refer to Figure 1-5On the basis of the specific embodiment 1, a fixed plate 19 is fixed on the upper surface of the processing table 1, and a second hydraulic cylinder 20 is fixed on one side of the fixed plate 19; a push plate 21 is fixed to the output shaft of the second hydraulic cylinder 20, and the push plate 21 is an arc-shaped structure.

[0036] Specifically, an extension plate 22 is fixed to the bottom of the base plate 3, and a threaded tube 23 is fixed to the surface of the extension plate 22; a threaded rod 24 is threadedly connected to the inside of the threaded tube 23, a connecting rod 25 is fixed to one end of the threaded rod 24, and an installer 26 is fixed to one end of the connecting rod 25; a motor 27 is fixed to the end of the threaded rod 24 away from the installer 26, and a telescopic rod 28 is fixed between the motor 27 and the extension plate 22.

[0037] Furthermore, a mounting shell 29 is fixed to the bottom of the push plate 4, and positioning grooves 30 are opened on both sides of the mounting shell 29; the installer 26 includes a shell 31, a limit plate 32 is fixed inside the shell 31, and springs 33 are fixed on both sides of the limit plate 32; an adjustment plate 34 is fixed to one end of the spring 33, and a clamping block 35 is fixed to one side of the adjustment plate 34; the clamping block 35 passes through the positioning groove 30.

[0038] The operation process of this embodiment is as follows: after the crucible is formed, the motor 27 is started, and its output shaft drives the threaded rod 24 to rotate in the threaded tube 23. The threaded rod 24 drives the installer 26 to rise through the connecting rod 25. The block 35 of the installer 26 is engaged with the positioning groove 30 of the mounting shell 29 at the bottom of the push plate 4, driving the push plate 4 to slide vertically upward along the inner wall of the mold 2. The threaded transmission realizes uniform lifting, and the guiding effect of the telescopic rod 28 is used to prevent the push plate 4 from tilting, ensuring that the bottom of the large crucible is evenly stressed and preventing cracking due to excessive local stress. When the crucible is pushed When it reaches the upper edge of the mold 2, the second hydraulic cylinder 20 on the fixed plate 19 is started. The output shaft of the second hydraulic cylinder 20 drives the arc-shaped push plate 21 to slowly extend, pushing the crucible steadily from the top of the mold 2 to the cooling groove 36. The arc-shaped push plate 21 increases the contact area with the crucible, and cooperates with the continuous lifting force of the push plate 4 to prevent the heavy crucible from tipping over during pushing. When demolding a large-sized crucible, the push plate 4 is subjected to greater pressure and is prone to wear after long-term use. The detachable design allows it to be disassembled for inspection or replacement separately without the need to disassemble the entire device, reducing maintenance costs and ensuring the stability of the demolding process.

[0039] For specific example three, please refer to Figure 1-7 On the basis of the specific embodiment 1 and the specific embodiment 2, a cooling groove 36 is opened on the upper surface of the processing table 1, and a plurality of water filter holes 37 are opened on the surface of the cooling groove 36; a water collecting box 38 is fixed at the bottom of the cooling groove 36, a drain pipe 39 is fixed at one end of the water collecting box 38, and a valve 40 is fixed on the outside of the drain pipe 39.

[0040] Specifically, cooling plates 41 are fixed on both sides of the cooling groove 36, and a plurality of water outlets 42 are fixed on the surface of the cooling plate 41; the water outlets 42 are connected to a water pump 43 through a first water pipe, and the input end of the water pump 43 is connected to a water tank 44 through a second water pipe.

[0041] The operation process of this embodiment is as follows: after the crucible is pushed above the cooling trough 36, the water pump 43 is turned on to transport the cooling water in the water tank 44 to the cooling plate 41 through the first water pipe, and is evenly sprayed on the surface of the crucible through a plurality of water outlet holes 42. The cooling water flows into the water collecting box 38 through the water filter holes 37 on the surface of the cooling trough 36 and is finally discharged through the drain pipe 39. The cooling trough 36 can collect waste water generated during cooling, and the cooling plates 41 on both sides form a surround-type water spray, so that the inner and outer walls of the large-sized crucible are cooled at the same time, the cooling efficiency is greatly improved, and the waiting time for subsequent processing is shortened; the temperature of the large-sized quartz crucible is relatively high after molding, and it is easy to be deformed due to its own gravity or external force when directly demolded. The cold water is sprayed out through the cooling trough 36 in cooperation with the water outlet holes 42 of the cooling plate 41, which can quickly reduce the temperature of the crucible, quickly fix its shape, and avoid dimensional deviation caused by slow cooling. It is especially suitable for large-sized crucibles with high precision requirements.

[0042] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A large-size quartz crucible demoulding auxiliary tool, comprising a processing table (1), characterized in that: A mold (2) is fixed on the upper surface of the processing table (1); A bottom plate (3) is fixed to the bottom of the mold (2), and a push plate (4) is slidably connected to the inside of the mold (2); A slide groove (5) is fixed on one side of the processing table (1), and a slider (6) is slidably connected inside the slide groove (5); A connecting plate (7) is fixed to the upper surface of the slider (6), and a bracket (8) is fixed to the top of the connecting plate (7); A storage box (9) is fixed on the upper surface of the bracket (8); an oil pump (10) is fixed to one end of the storage box (9) via a first connecting pipe; and an output end of the oil pump (10) is connected to a diverter plate (11) via a second connecting pipe. A plurality of nozzles (12) are fixed on the outside of the diverter plate (11); A first hydraulic cylinder (13) is fixed to the bottom of the bracket (8), and an output shaft of the first hydraulic cylinder (13) is fixedly connected to the outer side of the diverter plate (11).

2. A large-size quartz crucible demoulding auxiliary tool according to claim 1, characterized in that: The slider (6) is a "T"-shaped structure, and the slider (6) matches the inner wall of the slide groove (5); A positioning plate (14) is fixed on the upper surface of the processing table (1), and a tension spring (15) is fixed on one side of the positioning plate (14).

3. A large-size quartz crucible demoulding auxiliary tool according to claim 2, characterized in that: A handle (16) is fixed to one end of the tension spring (15), and a positioning rod (17) is fixed to one end of the handle (16); A positioning hole (18) is formed on one side of the slider (6), the positioning rod (17) passes through the slide groove (5), and one end of the positioning rod (17) is inserted into the positioning hole (18).

4. The demoulding auxiliary tool for a large-sized quartz crucible according to claim 1, characterized in that: A fixing plate (19) is fixed on the upper surface of the processing table (1), and a second hydraulic cylinder (20) is fixed on one side of the fixing plate (19); A push plate (21) is fixed to the output shaft of the second hydraulic cylinder (20), and the push plate (21) is an arc-shaped structure.

5. The demoulding auxiliary tool for a large-sized quartz crucible according to claim 1, characterized in that: An extension plate (22) is fixed to the bottom of the base plate (3), and a threaded tube (23) is fixed to the surface of the extension plate (22); The threaded tube (23) is internally threadedly connected to a threaded rod (24), one end of the threaded rod (24) is fixed with a connecting rod (25), and one end of the connecting rod (25) is fixed with a mounter (26); A motor (27) is fixed to one end of the threaded rod (24) away from the installer (26), and a telescopic rod (28) is fixed between the motor (27) and the extension plate (22).

6. The demoulding auxiliary tool for a large-sized quartz crucible according to claim 5, characterized in that: A mounting shell (29) is fixed to the bottom of the push plate (4), and positioning grooves (30) are provided on both sides of the mounting shell (29); The installer (26) comprises a housing (31), a limiting plate (32) is fixed inside the housing (31), and springs (33) are fixed on both sides of the limiting plate (32); An adjustment plate (34) is fixed to one end of the spring (33), and a clamping block (35) is fixed to one side of the adjustment plate (34); The clamping block (35) passes through the positioning slot (30).

7. The demoulding auxiliary tool for a large-sized quartz crucible according to claim 1, characterized in that: The upper surface of the processing table (1) is provided with a cooling groove (36), and the surface of the cooling groove (36) is provided with a plurality of water filtering holes (37); A water collecting box (38) is fixed at the bottom of the cooling tank (36), a drainage pipe (39) is fixed at one end of the water collecting box (38), and a valve (40) is fixed on the outside of the drainage pipe (39).

8. The demoulding auxiliary tool for a large-sized quartz crucible according to claim 7, characterized in that: Cooling plates (41) are fixed on both sides of the cooling trough (36), and a plurality of water outlet holes (42) are fixed on the surface of the cooling plate (41); The water outlet (42) is connected to a water pump (43) via a first water pipe, and the input end of the water pump (43) is connected to a water storage tank (44) via a second water pipe.

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