Ceramic crucible fixing device

Abstract

The utility model discloses a ceramic crucible fixing device, including a mounting box and a crucible blank, wherein the top surface of the mounting box is provided with a through groove. Beneficial effects: The utility model adopts a bimetallic sheet, a fixed hook rod, a connecting plate and a spring, wherein the crucible blank is placed between the fixed hook rods, and the bent hook on the top surface of the fixed hook rod hooks the top opening of the crucible blank, thereby preventing the crucible blank from tilting and tilting, and improving the stability of moving and feeding. When the crucible blank is being fired and formed, the temperature inside the kiln is high, and the bimetallic sheet is bent and deformed upward, pushing the connecting plate and the fixed hook rod to move upward. The spring is in a compressed state at this time, and the upward movement of the connecting plate causes the fixed hook rod to leave the crucible blank, thereby avoiding the problem of uneven firing caused by blocking the crucible blank, and improving the yield rate. At the same time, after the crucible blank is cooled, the bimetallic sheet returns to its initial shape, and the spring rebounds and resets to pull the connecting plate and the fixed hook rod downward to reset, re-fix the crucible blank, and improve the stability of moving and discharging.

Description

Technical Field

[0001] The utility model relates to the field of manufacturing fixing devices, in particular to a ceramic crucible fixing device. Background Art

[0002] Ceramic crucible is also called quartz ceramic crucible. Its full name is high-purity fused quartz ceramic crucible (silicon dioxide content ≥ 99.9%). It is a ceramic crucible made of high-purity fused quartz as raw material. Generally, its shapes are mainly square and cylindrical. Among them, the square high-purity quartz crucible is used in the polysilicon ingot casting process, acting as a container for polysiliconization and crystal growth, and the round high-purity quartz crucible is used in the process of pulling single crystals in single crystal silicon.

[0003] After searching, it was found that the publication number is CN211823856U, and the name is a fixing device for manufacturing a quartz ceramic crucible. The application proposes that in the existing quartz ceramic crucible manufacturing, it is usually necessary to grind the quartz ceramic crucible blank after firing, but during firing, the existing device is not able to fix the quartz ceramic crucible blank. Therefore, during firing, the shaking generated during the loading and unloading process may cause the quartz ceramic crucible blank to fall and be damaged. Through the bottom plate, the hanging ring, the support, the pad, the quartz ceramic crucible blank, the cavity, the threaded disk, the first rotating shaft, the second rotating shaft, the turntable, the slideway, the arc-shaped slider, and the arc-shaped clamping plate, the device can fix the quartz ceramic The crucible blank is placed on the upper surface of the pad, and the hollow setting between the pad and the support allows the bottom of the quartz ceramic crucible blank to be heated evenly during firing; the turntable can be rotated to drive the threaded disk to rotate, thereby driving the arc-shaped sliders threadedly connected to the upper surface of the threaded disk to slide together or away along the radial direction of the threaded disk to drive the arc-shaped clamping plate to clamp the quartz ceramic crucible blank. However, when the application is in use, the arc-shaped clamping plate clamps the crucible, which will block the surface of the crucible during firing, resulting in uneven surface firing, affecting the yield rate. At the same time, the application uses precision components such as rotating shafts, turntables, and threaded disks. The structure is very complex and the production cost is high, and further improvements can be made.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a ceramic crucible fixing device, which has the advantages of not blocking the crucible during firing, improving the uniformity of firing, stable fixing, easy use and simple structure, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the advantages of not blocking the crucible during firing, improving the uniformity of firing, stable fixation, convenient use, and simple structure, the specific technical solutions adopted by the utility model are as follows:

[0009] A ceramic crucible fixing device comprises a mounting box and a crucible blank, wherein the top surface of the mounting box is provided with a through groove, and a fixing hook rod is inserted through the through groove, and the bottom surface of the fixing hook rod is located inside the mounting box and fixedly connected with a connecting plate, the mounting box is located between the fixing hook rods and a crucible blank is placed thereon, and a hook is integrally bent on the top surface of the fixing hook rod, and the top opening of the crucible blank is inserted into the hook, a connecting rod is fixedly installed on the bottom surface of the connecting plate, and the connecting rod penetrates the mounting box and extends to the bottom of the mounting box, and an end plate is fixedly installed on the bottom surface of the connecting rod, a spring is sleeved on the outside of the connecting rod between the end plate and the bottom surface of the mounting box, and a bimetallic strip is fixedly connected to the bottom surface of the mounting box by fixing bolts.

[0010] Furthermore, the bimetallic sheet includes an iron sheet and a copper sheet, and the iron sheet and the copper sheet are fixedly connected, and the iron sheet is located on the top surface of the copper sheet.

[0011] Furthermore, the fixing bolt passes through one end of the bimetallic strip and is fixedly connected to the bimetallic strip, and a plurality of bimetallic strips are distributed at equal angles along the central axis of the connecting plate.

[0012] Furthermore, the fixed hook rods, the connecting plate, the connecting rod and the end plate are coaxially arranged, and the spacing between the fixed hook rods is greater than the maximum outer diameter of the crucible blank.

[0013] Furthermore, both ends of the spring are fixedly connected to the bottom surface of the installation box and the top surface of the end plate respectively, and the spring is made of manganese steel.

[0014] Furthermore, a support leg is fixedly installed at a corner of the bottom surface of the installation box, and the height of the support leg is greater than the length of the connecting rod.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a ceramic crucible fixing device, which has the following beneficial effects:

[0017] (1) The utility model adopts a bimetallic sheet, a fixed hook rod, a connecting plate and a spring. The crucible blank is placed between the fixed hook rods. The bent hook on the top surface of the fixed hook rod hooks the top of the crucible blank, thereby preventing the crucible blank from tilting and tilting, thereby improving the stability of moving and feeding. When the crucible blank is being fired and formed, the temperature inside the kiln is high, and the bimetallic sheet is bent and deformed upward, pushing the connecting plate and the fixed hook rod to move upward. The spring is in a compressed state at this time. The upward movement of the connecting plate causes the fixed hook rod to leave the crucible blank, thereby avoiding the problem of uneven firing caused by blocking the crucible blank, thereby improving the yield rate. At the same time, after the crucible blank is cooled, the bimetallic sheet returns to its original shape, and the spring rebounds and resets to pull the connecting plate and the fixed hook rod downward and reset, thereby re-fixing the crucible blank and improving the stability of moving and discharging.

[0018] (2) The utility model adopts a spring, a connecting rod and an end plate. When fixing and installing the crucible blank, the staff can move the fixing hook rod upward by hand. At this time, the connecting plate, the connecting rod and the end plate move upward synchronously, and the spring is compressed. Then, the crucible blank can be placed between the fixing hook rods. After the fixing hook rod is released, the spring rebounds and pushes the end plate, the connecting rod and the connecting plate to reset. Then, the curved hook at the top of the fixing hook rod can hook the top of the crucible blank to complete the fixing. The operation is very convenient, the structure is very simple, the manufacturing cost is very low, and it is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the external structure of a ceramic crucible fixing device proposed by the utility model;

[0021] Figure 2 This is another external structural schematic diagram of a ceramic crucible fixing device proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the installation of the bimetallic strip proposed by the utility model;

[0023] Figure 4 The utility model discloses a schematic diagram of the internal structure of a ceramic crucible fixing device.

[0024] In the figure:

[0025] 1. Installation box; 2. Crucible blank; 3. Fixed hook rod; 4. Connecting plate; 5. Support leg; 6. Bimetallic sheet; 7. Fixing bolt; 8. Connecting rod; 9. End plate; 10. Spring; 11. Through slot; 12. Iron sheet; 13. Copper sheet. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a ceramic crucible fixing device is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, a ceramic crucible fixing device according to an embodiment of the utility model comprises a mounting box 1 and a crucible blank 2. Through holes are densely provided on the top surface of the mounting box 1 below the crucible blank 2 to facilitate uniform firing of the bottom surface of the crucible blank 2. A through groove 11 is provided on the top surface of the mounting box 1, and a fixed hook rod 3 is inserted through the through groove 11. The through groove 11 facilitates the movement of the fixed hook rod 3 and guides the fixed hook rod 3. The bottom surface of the fixed hook rod 3 is located inside the mounting box 1 and is fixedly connected to a connecting plate 4, which is a circular plate. The mounting box 1 is located between the fixed hook rods 3 and the crucible blank 2 is placed. The top surface of the fixed hook rod 3 is integrally bent with a hook, and the top opening of the crucible blank 2 is inserted into the inside of the hook, a connecting rod 8 is fixedly installed on the bottom surface of the connecting plate 4, and the connecting rod 8 penetrates the installation box 1 and extends to the bottom of the installation box 1, and an end plate 9 is fixedly installed on the bottom surface of the connecting rod 8, and a spring 10 is sleeved on the outside of the connecting rod 8 between the end plate 9 and the bottom surface of the installation box 1, and a bimetallic strip 6 is fixedly connected to the top of the bottom surface of the installation box 1 below the connecting plate 4 by a fixing bolt 7, and the crucible blank 2 is placed between the fixed hook rods 3, and the hook on the top surface of the fixed hook rod 3 hooks the top opening of the crucible blank 2, thereby preventing the crucible from being stuck. The crucible blank 2 is tilted and tilted, which improves the stability of moving the feeding. When the crucible blank 2 is being fired and formed, the temperature inside the kiln is high, and the bimetallic strip 6 is bent and deformed upward, pushing the connecting plate 4 and the fixed hook rod 3 to move upward. The spring 10 is in a compressed state at this time. The upward movement of the connecting plate 4 causes the fixed hook rod 3 to leave the crucible blank 2, avoiding the problem of uneven firing caused by blocking the crucible blank 2, thereby improving the yield rate. At the same time, after the crucible blank 2 is cooled, the bimetallic strip 6 returns to its initial shape, and the spring 10 rebounds and resets to pull the connecting plate 4 and the fixed hook rod 3 downward to reset, and re-fix the crucible. The blank 2 improves the stability of moving the material. At the same time, when the crucible blank 2 is fixedly installed, the staff can move the fixed hook rod 3 up by hand. At this time, the connecting plate 4, the connecting rod 8 and the end plate 9 move up synchronously, and the spring 10 is compressed. Then the crucible blank 2 can be placed between the fixed hook rods 3, and the fixed hook rod 3 is released. After the spring 10 rebounds and pushes the end plate 9, the connecting rod 8 and the connecting plate 4 to reset, the curved hook on the top of the fixed hook rod 3 can be hooked on the top of the crucible blank 2 to complete the fixation. The operation is very convenient, the structure is very simple, the manufacturing cost is very low, and it is suitable for large-scale promotion and use.

[0029] In one embodiment, the bimetallic strip 6 includes an iron sheet 12 and a copper sheet 13, and the iron sheet 12 and the copper sheet 13 are fixedly connected, and the iron sheet 12 is located on the top surface of the copper sheet 13. The thermal deformation efficiency of the copper sheet 13 is higher than that of the iron sheet 12. During the firing process, the deformation amplitude of the copper sheet 13 is greater than that of the iron sheet 12, thereby achieving one end of the bimetallic strip 6 bending upward after being heated.

[0030] In one embodiment, the fixing bolt 7 passes through one end of the bimetallic strip 6 and is fixedly connected to the bimetallic strip 6 , and there are multiple bimetallic strips 6 distributed at equal angles along the central axis of the connecting plate 4 , thereby improving the driving efficiency and uniformity of the connecting plate 4 .

[0031] In one embodiment, the fixed hook rod 3, the connecting plate 4, the connecting rod 8 and the end plate 9 are coaxially arranged, and the spacing between the fixed hook rods 3 is greater than the maximum outer diameter of the crucible blank 2 to prevent the rod body of the fixed hook rod 3 from contacting the outer surface of the crucible blank 2.

[0032] In one embodiment, two ends of the spring 10 are fixedly connected to the bottom surface of the installation box 1 and the top surface of the end plate 9 respectively, and the spring 10 is made of manganese steel, which is a common part.

[0033] In one embodiment, a support leg 5 is fixedly installed at the corner of the bottom surface of the installation box 1, and the height of the support leg 5 is greater than the length of the connecting rod 8, so as to facilitate the end plate 9 to move up and down.

[0034] Working principle:

[0035] The crucible blank 2 is placed between the fixed hook rods 3, and the bent hooks on the top surfaces of the fixed hook rods 3 hook the top opening of the crucible blank 2, thereby preventing the crucible blank 2 from tilting and tilting, and improving the stability of the moving feed. When the crucible blank 2 is being sintered and formed, the temperature inside the kiln is high, and the bimetallic strip 6 is bent and deformed upward, pushing the connecting plate 4 and the fixed hook rod 3 to move upward. The spring 10 is in a compressed state at this time, and the upward movement of the connecting plate 4 causes the fixed hook rod 3 to leave the crucible blank 2, avoiding the problem of uneven firing caused by blocking the crucible blank 2, and improving the yield rate. At the same time, after the crucible blank 2 is cooled, the bimetallic strip 6 returns to its original shape, and the spring 10 rebounds and resets to pull The movable connecting plate 4 and the fixed hook rod 3 are moved down and reset, and the crucible blank 2 is re-fixed to improve the stability of the moving discharge. At the same time, when the crucible blank 2 is fixedly installed, the staff can move the fixed hook rod 3 up by hand. At this time, the connecting plate 4, the connecting rod 8 and the end plate 9 are moved up synchronously, and the spring 10 is compressed. Then the crucible blank 2 can be placed between the fixed hook rods 3, and the fixed hook rod 3 is released. After the spring 10 rebounds and pushes the end plate 9, the connecting rod 8 and the connecting plate 4 to reset, the curved hook on the top of the fixed hook rod 3 can be hooked on the top of the crucible blank 2 to complete the fixation. The operation is very convenient, the structure is very simple, the manufacturing cost is very low, and it is suitable for large-scale promotion and use.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ceramic crucible fixing device, characterized in that: The invention comprises an installation box (1) and a crucible blank (2), wherein a through groove (11) is provided on the top surface of the installation box (1), and a fixed hook rod (3) is inserted through the through groove (11), and the bottom surface of the fixed hook rod (3) is located inside the installation box (1) and fixedly connected to a connecting plate (4), wherein the installation box (1) is located between the fixed hook rods (3) and a crucible blank (2) is placed, wherein the top surface of the fixed hook rod (3) is integrally bent to form a hook, and the top of the crucible blank (2) is inserted into the hook, wherein a connecting rod (8) is fixedly installed on the bottom surface of the connecting plate (4), wherein the connecting rod (8) passes through the installation box (1) and extends to the bottom of the installation box (1), and an end plate (9) is fixedly installed on the bottom surface of the connecting rod (8), wherein a spring (10) is sleeved on the outside of the connecting rod (8) between the end plate (9) and the bottom surface of the installation box (1), and a bimetallic strip (6) is fixedly connected to the bottom surface of the installation box (1) by a fixing bolt (7).

2. A ceramic crucible fixing device according to claim 1, characterized in that: The bimetallic sheet (6) comprises an iron sheet (12) and a copper sheet (13), wherein the iron sheet (12) and the copper sheet (13) are fixedly connected, and the iron sheet (12) is located on the top surface of the copper sheet (13).

3. A ceramic crucible fixing device according to claim 1, characterized in that: The fixing bolt (7) passes through one end of the bimetallic strip (6) and is fixedly connected to the bimetallic strip (6), and a plurality of bimetallic strips (6) are distributed at equal angles along the central axis of the connecting plate (4).

4. A ceramic crucible fixing device according to claim 1, characterized in that: The fixed hook rods (3), the connecting plate (4), the connecting rods (8) and the end plate (9) are coaxially arranged, and the spacing between the fixed hook rods (3) is greater than the maximum outer diameter of the crucible blank (2).

5. A ceramic crucible fixing device according to claim 1, characterized in that: The two ends of the spring (10) are fixedly connected to the bottom surface of the installation box (1) and the top surface of the end plate (9), respectively, and the spring (10) is made of manganese steel.

6. A ceramic crucible fixing device according to claim 1, characterized in that: A support leg (5) is fixedly mounted at a corner of the bottom surface of the installation box (1), and the height of the support leg (5) is greater than the length of the connecting rod (8).

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