Crucible material taking device for metal ingot demolding
By designing a crucible material handling device that uses a hollow annular concave structure clamping component in conjunction with a filling component, the problems of metal loss and crucible scratches during the demolding process of ultra-high purity metal ingots were solved, achieving a safe and efficient demolding operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing technologies tend to damage the metal ingot and scratch the inner wall of the crucible during the demolding process of ultra-high purity metal ingots, leading to the introduction of impurities and a reduction in economic value.
A crucible material handling device comprising a first clamping member, a second clamping member, a filler member, and an auxiliary fixing component is adopted. The hollow annular concave structure makes close contact with the bottom of the crucible, and the filler member provides cushioning to avoid direct contact and scratches. Demolding is achieved by using the inverted crane and the auxiliary fixing component.
This method achieves safe and efficient demolding without damaging the metal ingot or scratching the inner wall of the crucible, thus improving operational safety and economic value.
Smart Images
Figure CN224026469U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the crucible material taking technical field, and relates to a kind of for metal ingot demoulding's crucible material taking device. BACKGROUND
[0002] Ultra-high purity metal and its alloy are widely used in semiconductor field, such as high-purity aluminum and its aluminum alloy, high-purity copper and its copper alloy etc. The main materials of crucible include graphite, silicon carbide, alumina etc., and the crucible has good thermal conductivity and high temperature resistance. In the process of high temperature use, the coefficient of thermal expansion is small, and it has certain strain resistance to sudden heating and sudden cooling. Therefore, it is widely used in the smelting production of ultra-high purity metal and its alloy. In the smelting production process, the molten metal liquid is solidified in the crucible, and then the metal ingot is taken out for subsequent processing.
[0003] Since the introduction of foreign matter impurities must be strictly controlled during the production of ultra-high purity metal, the crucible, especially the inner wall of the crucible, is required to be strict. The formed metal ingot is usually more than 100 kg, so it is easy to scratch the crucible wall during the process of taking out the metal ingot, which will lead to the introduction of impurities in the next production. At present, most of the operators directly tilt the crucible, and then rely on the weight of the metal ingot to slide out of the crucible. However, this method is very easy to scratch the crucible wall. Some operators also drill holes and thread on the upper end surface of the metal ingot, and then lift the metal ingot out through the screw rod. This method consumes more metal (the value of ultra-high purity metal is much higher than that of ordinary metal), and the high-purity metal is relatively soft, which can easily lead to the falling risk caused by the falling of the screw hole.
[0004] In summary, it is urgent to develop a new type of crucible material taking device for metal ingot demoulding to ensure that the metal ingot is demoulded from the crucible without wasting the metal ingot and scratching the inner wall of the crucible, and to improve the practicality and economic value. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a crucible material taking device for metal ingot demoulding, which realizes the demoulding of metal ingot from the crucible without wasting the metal ingot and scratching the inner wall of the crucible by the cooperation of the first clamping piece, the second clamping piece, the filler and the auxiliary fixing assembly, and meets the use requirements of the existing crucible material taking.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The utility model provides a kind of for metal ingot demoulding's crucible material taking device, the crucible material taking device includes first clamping piece, second clamping piece, filler and auxiliary fixing assembly;
[0008] The first clamping piece is arranged at the bottom of the crucible, and the structure of the first clamping piece is a hollow annular recess.
[0009] The second clamping piece is filled with the filler between the metal ingot and the second clamping piece, and the spacing between the second clamping piece and the top end of the crucible is 5-10 mm.
[0010] The auxiliary fixing assembly is arranged in the first threaded hole and the second threaded hole, and the auxiliary fixing assembly is used for connecting and fixing the first clamping piece and the second clamping piece.
[0011] In the utility model, the hollow annular recess is a recess with annular structure and hollow inside, and the shape structure of the recessed area is matched with the bottom of the crucible.
[0012] The crucible material taking device provided by the utility model can stably and firmly clamp the crucible through cooperation of the first clamping piece, the second clamping piece, the filler and the auxiliary fixing assembly, then the crucible material taking device after assembly is inverted by the aid of a travelling crane, the auxiliary fixing assembly and the first clamping piece are removed in turn, finally the crucible can be pulled vertically upward by the aid of a tool until the metal ingot is completely exposed, the metal ingot is demoulded from the crucible without damaging the inner wall of the crucible, and the use requirement of the existing crucible material taking is met.
[0013] It is worth noting that the first clamping piece is arranged as a hollow annular recess structure, the annular recess is in close contact with the bottom of the crucible, stable support and clamping force are provided, the sliding of the crucible in the use process is effectively prevented, the safety of the operation process is improved, the first clamping piece is convenient to quickly install and disassemble, in addition, the hollow structure design can significantly reduce the weight of the first clamping piece, while the carrying capacity and structural strength are not sacrificed.
[0014] It is worth noting that the filler is filled between the second clamping piece and the metal ingot, a buffer effect is provided in the process of inverting the crucible material taking device and the material taking process, the second clamping piece is prevented from directly contacting the metal ingot, the risk of scratching is reduced, pressure can be dispersed in the material taking process, and the surface of the metal ingot is protected, the spacing between the second clamping piece and the top end of the crucible is controlled to be within 5-10 mm, if the spacing is too small, the crucible is likely to be hit in the material taking process, if the spacing is too large, the second clamping piece can not provide sufficient stability, and the crucible is likely to shake in the material taking process.
[0015] As the preferred technical scheme of the utility model, the first clamping piece is in contact with the bottom of the crucible.
[0016] The cooperation gap between the first clamping piece and the side wall of the crucible is 0.1-0.3 mm.
[0017] The central axis of the first clamping piece coincides with the central axis of the crucible.
[0018] As the preferred technical scheme of the utility model, the ratio of the hollow diameter of the first clamping piece to the diameter of the crucible is (0.55-0.75):1.
[0019] As the preferred technical scheme of the utility model, the inner surface roughness of the first clamping piece is 3-6 mu m.
[0020] As the preferred technical scheme of the utility model, the inner surface of the first clamping piece is fixed with an anti-skid strip.
[0021] As the preferred technical scheme of the utility model, the central axis of the second clamping piece coincides with the central axis of the first clamping piece.
[0022] The lower surface of the second clamping piece is provided with a groove.
[0023] As the preferred technical scheme of the utility model, a limiting piece is arranged between the second clamping piece and the filling piece.
[0024] As the preferred technical scheme of the utility model, the number of the first threaded through holes is greater than or equal to 6.
[0025] The number of the first threaded through holes and the second threaded through holes is equal and is arranged one-to-one in position.
[0026] As the preferred technical scheme of the utility model, the auxiliary fixing assembly does not contact the crucible.
[0027] As the preferred technical scheme of the utility model, the auxiliary fixing assembly comprises a screw rod and a nut.
[0028] The screw rod passes through the first threaded through hole in the first clamping piece and the second threaded through hole in the second clamping piece in sequence, and the top and bottom of the screw rod are fastened by the nut respectively.
[0029] Compared with the prior art, the utility model has the following beneficial effects:
[0030] (1) The crucible material taking device provided by the utility model can demold the metal ingot from the crucible without wasting the metal ingot and scratching the inner wall of the crucible by the cooperation of the first clamping piece, the second clamping piece, the filling piece and the auxiliary fixing assembly, and meets the use requirement of the existing crucible material taking.
[0031] (2) The crucible material taking device provided by the utility model is provided with the first clamping piece of the hollow annular recess structure, the annular recess is in close contact with the bottom of the crucible, stable support and clamping force are provided, thereby effectively preventing the crucible from sliding during use, improving the safety of the operation process, and facilitating quick installation and dismounting; in combination with the filler filled between the second clamping piece and the metal ingot, a buffering effect is provided during the inversion process and the material taking process of the crucible material taking device, direct contact between the second clamping piece and the metal ingot is avoided, the risk of scratching is further reduced, pressure can be dispersed during the material taking process, and the surface of the metal ingot is protected. BRIEF DESCRIPTION OF DRAWINGS
[0032] Figure 1 is a structural schematic view of the crucible material taking device provided by embodiment 1.
[0033] Figure 2 is a top view of the first clamping piece provided by embodiment 1.
[0034] Figure 3 is a front view of the first clamping piece provided by embodiment 1.
[0035] Figure 4 is a top view of the second clamping piece provided by embodiment 1.
[0036] Figure 5 is a front view of the second clamping piece provided by embodiment 1.
[0037] Wherein, 1-first clamping piece, 2-second clamping piece, 3-filler, 4-assistant fixing assembly, 5-crucible, 6-high purity copper ingot, 11-first threaded through hole, 21-second threaded through hole. DETAILED DESCRIPTION
[0038] It should be understood that, in the description of the utility model, the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0039] It should be noted that in the description of the utility model, unless otherwise expressly specified and limited, the terms "arrangement", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0040] The utility model discloses a kind of for metal ingot ejection's crucible material taking device, the crucible material taking device includes first clamping piece, second clamping piece, filler and auxiliary fixing assembly;
[0041] The first clamping piece is arranged at the bottom of the crucible;The structure of the first clamping piece is hollow annular recess;A plurality of first threaded through holes are arranged on the first clamping piece;
[0042] The filler is filled between the second clamping piece and the metal ingot, and the spacing between the second clamping piece and the top end of the crucible is 5-10mm;A plurality of second threaded through holes are arranged on the second clamping piece;
[0043] The auxiliary fixing assembly is arranged in the first threaded through hole and the second threaded through hole;The auxiliary fixing assembly is used for connecting and fixing the first clamping piece and the second clamping piece.
[0044] In the utility model, the spacing between the second clamping piece and the top end of the crucible is 5-10mm, for example, it can be 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm or 10mm, but not limited to the listed values, other unlisted values in the range are also applicable.
[0045] In the utility model, the material of the first clamping piece and the second clamping piece is not specifically limited, as long as it has certain strength, and no deformation occurs during material taking process, and the person skilled in the art can determine it according to actual needs,
[0046] The crucible material taking device provided by the utility model is used in cooperation with the first clamping piece, the second clamping piece, the filler and the auxiliary fixing assembly, without embedding into the metal ingot, and without sliding out of the crucible by the weight of the metal ingot, so that the metal ingot is ejected from the crucible without wasting the metal ingot and scratching the inner wall of the crucible, and the use requirement of the existing crucible material taking is met.
[0047] In some embodiments of the utility model, the first clamping piece is in contact with the bottom of the crucible.
[0048] In some embodiments of the utility model, the cooperation gap between the first clamping piece and the crucible side wall is 0.1-0.3mm, for example, it can be 0.1mm, 0.12mm, 0.15mm, 0.18mm, 0.2mm, 0.22mm, 0.25mm, 0.28mm or 0.3mm etc., but not limited to the listed values, other values not listed in the range are also applicable.
[0049] In some embodiments of the utility model, the central axis of the first clamping piece coincides with the central axis of the crucible.
[0050] In some embodiments of the utility model, the ratio of the hollow diameter of the first clamping piece to the diameter of the crucible is (0.55-0.75):1, for example, it can be 0.55:1, 0.6:1, 0.65:1, 0.7:1 or 0.75:1 etc., but not limited to the listed values, other values not listed in the range are also applicable.
[0051] In the utility model, by controlling the ratio of the diameter of the hollow structure to the diameter of the crucible in the range of (0.55-0.75):1, it further ensures that the first clamping piece has good carrying capacity and structural strength while significantly reducing the weight of the first clamping piece.
[0052] In some embodiments of the utility model, the inner surface roughness of the first clamping piece is 3-6μm, for example, it can be 3μm, 3.5μm, 4μm, 4.5μm, 5μm, 5.5μm or 6μm etc., but not limited to the listed values, other values not listed in the range are also applicable.
[0053] In the utility model, the inner surface roughness of the first clamping piece can be controlled in the range of 3-6μm through sand blasting treatment, which can effectively prevent the crucible from sliding during use and improve the safety of the operation process.
[0054] In some embodiments of the utility model, the inner surface of the first clamping piece is fixedly provided with an anti-skid strip.
[0055] In the utility model, the inner surface of the first clamping piece is also fixedly provided with an anti-skid strip, which can also effectively prevent the crucible from sliding during use and improve the safety of the operation process.
[0056] In some embodiments of the utility model, the central axis of the second clamping piece coincides with the central axis of the first clamping piece.
[0057] In some embodiments of the utility model, the lower surface of the second clamping piece is provided with a groove.
[0058] The second clamping piece can be provided with a groove structure, so that the weight of the second clamping piece is reduced, and the safety in the material taking process is further improved.
[0059] In some embodiments of the utility model, a limiting piece is arranged between the second clamping piece and the filler.
[0060] In the utility model, a limiting piece can be further arranged between the second clamping piece and the filler, so that the second clamping piece is prevented from excessively approaching the crucible in the material taking process, and collision is avoided.
[0061] In the utility model, the filler comprises any one or combination of at least two of an asbestos pad, a sponge pad or a carbon fiber pad.
[0062] In some embodiments of the utility model, the number of the first threaded through holes is greater than or equal to 6, for example, can be 6, 7, 8, 9 or 10, but is not limited to the listed values, and other unlisted values in the range are also applicable.
[0063] In some embodiments of the utility model, the number of the first threaded through holes is equal to that of the second threaded through holes and is arranged in one-to-one correspondence.
[0064] In some embodiments of the utility model, the auxiliary fixing assembly is not in contact with the crucible.
[0065] In some embodiments of the utility model, the auxiliary fixing assembly comprises a screw rod and a nut.
[0066] In some embodiments of the utility model, the screw rod sequentially passes through the first threaded through hole in the first clamping piece and the second threaded through hole in the second clamping piece, and the top and bottom of the screw rod are fastened by the nut respectively.
[0067] The utility model specific implementation further provides a kind of usage method of the crucible material taking device, and the usage method is carried out using the foregoing crucible material taking device, and specific including following steps:
[0068] (1) the crucible containing metal ingot after processing is placed on the first clamping piece, and then filler and second clamping piece are placed in turn on the top of metal ingot, then first clamping piece and second clamping piece are fixed by auxiliary fixing assembly, and the assembly of crucible material taking device is completed;
[0069] (2) the crucible material taking device assembled in step (1) is inverted, and then auxiliary fixing assembly and first clamping piece are removed in turn, then the crucible is pulled vertically upwards by means of clamp, until metal ingot is completely exposed, and metal ingot is obtained.
[0070] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0071] Example 1
[0072] This embodiment provides a crucible material handling device for demolding high-purity copper ingots and its usage method. The crucible material handling device (such as...) Figure 1 (As shown) includes a first clamping member 1, a second clamping member 2, a filler member 3, and an auxiliary fixing component 4;
[0073] The first clamping member 1 is disposed at the bottom of the crucible 5 and contacts the bottom of the crucible; the clearance between the first clamping member 1 and the side wall of the crucible is 0.2 mm; the central axis of the first clamping member 1 coincides with the central axis of the crucible 5; the first clamping member 1 (its top view and front view are respectively as shown in the figure) Figures 2-3 The structure shown is a hollow annular concave platform; the inner surface roughness of the first clamping member 1 is 5μm; the ratio of the hollow diameter of the first clamping member 1 to the diameter of the crucible is 0.65:1; the first clamping member 1 is provided with 8 first threaded through holes 11;
[0074] The central axis of the second clamping member 2 coincides with the central axis of the first clamping member 1; the filler 3 is installed between the second clamping member 2 and the high-purity copper ingot 6, and the distance between the second clamping member 2 and the top of the crucible 5 is 8mm; the filler 3 is an asbestos pad; the second clamping member 2 (its top view and front view are shown respectively) Figures 4-5 The lower surface of the (shown) is provided with a groove; the second clamping member 2 is provided with 8 second threaded through holes 21; the positions of the first threaded through hole 11 and the second threaded through hole 21 are arranged in a one-to-one correspondence;
[0075] The auxiliary fixing component 4 is used to connect and fix the first clamping member 1 and the second clamping member 2; the auxiliary fixing component 4 does not contact the crucible 5; the auxiliary fixing component includes a screw and a nut; the screw passes through the first threaded through hole 11 in the first clamping member 1 and the second threaded through hole 21 in the second clamping member 2 in sequence, and the top and bottom of the screw are respectively fastened by the nut.
[0076] The method of use utilizes the aforementioned crucible material handling device and specifically includes the following steps:
[0077] (1) Place the crucible 5 containing the processed high-purity copper ingot 6 on the first clamping member 1, and then place the filler 3 and the second clamping member 2 on the top of the high-purity copper ingot 6 in sequence. Then fix the first clamping member 1 and the second clamping member 2 by the auxiliary fixing component to complete the assembly of the crucible material taking device.
[0078] (2) Inverting the assembled crucible taking device of step (1), then sequentially removing the auxiliary fixing assembly and the first clamping piece 1, and then pulling the crucible vertically upward until the high-purity copper ingot 6 is completely exposed, thereby obtaining the high-purity copper ingot.
[0079] The crucible taking device and the use method provided in the embodiment can demold the high-purity copper ingot from the crucible without wasting the high-purity copper ingot and scratching the inner wall of the crucible, and meet the use requirement of the existing crucible taking.
[0080] Embodiment 2
[0081] The embodiment provides a crucible taking device for demolding a high-purity copper ingot and a use method thereof.
[0082] The first clamping piece is arranged at the bottom of the crucible and is in contact with the bottom of the crucible; the cooperation gap between the first clamping piece and the side wall of the crucible is 0.1 mm; the central axis of the first clamping piece coincides with the central axis of the crucible; the structure of the first clamping piece is a hollow annular recess; the inner surface of the first clamping piece is fixedly provided with an anti-skid strip; the ratio of the hollow diameter of the first clamping piece to the diameter of the crucible is 0.7:1; and six first threaded through holes are arranged on the first clamping piece.
[0083] The central axis of the second clamping piece coincides with the central axis of the first clamping piece; the filling piece is arranged between the second clamping piece and the high-purity copper ingot, and the distance between the second clamping piece and the top end of the crucible is 5 mm; the filling piece is a carbon fiber pad; six second threaded through holes are arranged on the second clamping piece; and the first threaded through holes and the second threaded through holes are arranged in one-to-one correspondence.
[0084] The auxiliary fixing assembly is used for connecting and fixing the first clamping piece and the second clamping piece; the auxiliary fixing assembly is not in contact with the crucible; the auxiliary fixing assembly comprises a screw rod and a nut; the screw rod sequentially passes through the first threaded through hole in the first clamping piece and the second threaded through hole in the second clamping piece, and the top and bottom of the screw rod are fastened by the nut respectively.
[0085] The crucible taking device and the use method provided in the embodiment can demold the high-purity copper ingot from the crucible without wasting the high-purity copper ingot and scratching the inner wall of the crucible, and meet the use requirement of the existing crucible taking.
[0086] Embodiment 3
[0087] The embodiment provides a crucible material taking device for high-purity copper ingot demolding, the crucible material taking device comprising a first clamping piece, a second clamping piece, a filler and an auxiliary fixing assembly;
[0088] The first clamping piece is arranged at the bottom of the crucible and is in contact with the bottom of the crucible; the cooperation gap between the first clamping piece and the side wall of the crucible is 0.3 mm; the central axis of the first clamping piece coincides with the central axis of the crucible; the structure of the first clamping piece is a hollow annular concave; the inner surface roughness of the first clamping piece is 6 μm; the ratio of the hollow diameter of the first clamping piece to the diameter of the crucible is 0.55:1; and 10 first threaded through holes are arranged on the first clamping piece;
[0089] The central axis of the second clamping piece coincides with the central axis of the first clamping piece; the filler is arranged between the second clamping piece and the high-purity copper ingot, and the distance between the second clamping piece and the top end of the crucible is 10 mm; a limiting piece is arranged between the second clamping piece and the filler; the filler is a carbon fiber pad; 10 second threaded through holes are arranged on the second clamping piece; and the first threaded through holes and the second threaded through holes are arranged in one-to-one correspondence;
[0090] The auxiliary fixing assembly is used for connecting and fixing the first clamping piece and the second clamping piece; the auxiliary fixing assembly is not in contact with the crucible; the auxiliary fixing assembly comprises a screw rod and a nut; the screw rod passes through the first threaded through hole in the first clamping piece and the second threaded through hole in the second clamping piece in sequence, and the top and bottom of the screw rod are fastened by the nut respectively.
[0091] The crucible material taking device and the using method provided by the embodiment can demold the high-purity copper ingot from the crucible without wasting the high-purity copper ingot and scratching the inner wall of the crucible by cooperation of the first clamping piece, the second clamping piece, the filler and the auxiliary fixing assembly, thereby meeting the use requirement of the existing crucible material taking.
[0092] Comparative Example 1
[0093] The comparative example provides a crucible material taking device for high-purity copper ingot demolding and a using method thereof, wherein the structure of the first clamping piece is a cuboid, and other conditions are the same as those in the embodiment 1.
[0094] The crucible material taking device provided by the comparative example has the problem of easy sliding during use, which not only reduces the production efficiency, but also causes the production operation safety to decrease.
[0095] Comparative Example 2
[0096] The comparative example 2 provides a crucible material taking device for high-purity copper ingot demolding and a method for using the same, which is identical to the example 1 except that the distance between the second clamping member and the top end of the crucible is 2 mm.
[0097] The crucible material taking device provided by the comparative example 2 has the risk of the second clamping member contacting the crucible during the use of the crucible material taking device, which leads to the decline of the production operation safety, and has the risk of the second clamping member directly contacting the high-purity copper ingot, which causes the high-purity copper ingot to be scratched.
[0098] Comparative example 3
[0099] The comparative example 2 provides a crucible material taking device for high-purity copper ingot demolding and a method for using the same, which is identical to the example 1 except that the distance between the second clamping member and the top end of the crucible is 20 mm.
[0100] The crucible material taking device provided by the comparative example 2 has the risk of the second clamping member contacting the crucible during the use of the crucible material taking device, which leads to the decline of the production operation safety, and has the risk of the second clamping member directly contacting the high-purity copper ingot, which causes the high-purity copper ingot to be scratched.
[0101] The applicant declares that the above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. It should be understood by those skilled in the art that any changes or replacements within the technical scope disclosed by the present application can be easily thought of by any person skilled in the art, and all fall within the protection scope and disclosure scope of the present application.
Claims
1. A crucible unloading device for demolding metal ingots, characterized in that, The crucible material handling device includes a first clamping member, a second clamping member, a filling member, and an auxiliary fixing component; The first clamping member is disposed at the bottom of the crucible; the structure of the first clamping member is a hollow annular concave platform; the first clamping member is provided with a plurality of first threaded through holes; The filler is placed between the second clamping member and the metal ingot, and the distance between the second clamping member and the top of the crucible is 5-10 mm; the second clamping member is provided with a plurality of second threaded through holes. The auxiliary fixing component is inserted into the first threaded through hole and the second threaded through hole; the auxiliary fixing component is used to connect and fix the first clamping member and the second clamping member.
2. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The first clamping member is in contact with the bottom of the crucible; The clearance between the first clamping member and the side wall of the crucible is 0.1-0.3 mm; The central axis of the first clamping member coincides with the central axis of the crucible.
3. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The ratio of the hollow diameter of the first clamping member to the diameter of the crucible is (0.55-0.75):
1.
4. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The inner surface roughness of the first clamping member is 3-6 μm.
5. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The inner surface of the first clamping member is fixed with an anti-slip strip.
6. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The central axis of the second clamping member coincides with the central axis of the first clamping member; The lower surface of the second clamping member is provided with a groove.
7. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, A limiting member is provided between the second clamping member and the filling member.
8. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The number of the first threaded through holes is ≥6; The number of the first threaded through holes and the number of the second threaded through holes are equal, and their positions are set in a one-to-one correspondence.
9. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The auxiliary fixing component does not come into contact with the crucible.
10. The crucible unloading device for demolding metal ingots according to claim 1, characterized in that, The auxiliary fixing assembly includes a screw and a nut; The screw passes sequentially through the first threaded through hole in the first clamping member and the second threaded through hole in the second clamping member, and the top and bottom of the screw are respectively fastened by nuts.