Quartz crucible forming rod

Abstract

The utility model relates to the technical field of quartz crucible production, in particular to a quartz crucible forming rod which comprises a hollow forming rod body, the forming rod body is provided with an outline matched with a quartz crucible and comprises a bottom end and a top end, and a plurality of positioning grooves are formed in the bottom end of the forming rod body; the forming rod tip is movably arranged at the bottom end of the forming rod body, one end of the forming rod tip is located in the bottom end of the forming rod body and can be selectively clamped into any one of the multiple positioning grooves, and the other end of the forming rod tip is located outside the bottom end of the forming rod body so that the forming rod body can be positioned at different positions. The forming rod can be positioned at different positions by adjusting the tip of the forming rod so as to be matched with different thicknesses of the inner-layer quartz sand and the outer-layer quartz sand during preparation of the quartz crucible, so that frequent replacement of the forming rod is avoided, and the operation process is simplified.

Description

Technical Field

[0001] This application relates to the field of quartz crucible manufacturing technology, and in particular to a quartz crucible forming rod. Background Technology

[0002] Quartz crucibles are important auxiliary components in the production of single-crystal silicon rods for solar energy and semiconductors. When using the electric arc method, high-purity quartz sand is poured into a graphite or metal mold. A forming rod evenly shapes the quartz sand onto the inner surface of the mold. The mold is then placed into a melting chamber, where the high temperature of the electric arc generated by graphite electrodes melts the quartz sand.

[0003] In the quartz crucible forming process, the distance between the forming rod and the forming mold is equal to the thickness of the quartz sand layer. One end of the forming rod is fixed to the central axis, and the outer edge of the other end, along its contour shape, determines the length of the straight wall and the shape of the radius (R-arc) of the quartz crucible. In existing technologies, to effectively prevent the mixing of different sand layers, each layer is formed separately. Because the thickness of different sand layers relative to the forming mold varies, multiple forming rods of varying lengths are often used to form each layer of quartz sand. This approach significantly increases the complexity and operational difficulty of the processing steps.

[0004] Therefore, it is necessary to design a quartz crucible forming rod to solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a quartz crucible forming rod, which simplifies the operation process and reduces the difficulty of operation, greatly improves the convenience and work efficiency of operators, and effectively improves the quality of the manufactured quartz crucible.

[0006] To address the above problems, this application provides a quartz crucible forming rod, comprising: a forming rod body, the forming rod body being hollow and having a profile matching a quartz crucible, and including a bottom end and a top end, wherein a plurality of positioning grooves are provided inside the bottom end of the forming rod body; and a forming rod tip, the forming rod tip being movably disposed at the bottom end of the forming rod body, one end being located inside the bottom end of the forming rod body and selectively engaging with any one of the plurality of positioning grooves, and the other end being located outside the bottom end of the forming rod body to position the forming rod body at different positions.

[0007] An alternative approach is to configure the bottom end of the forming rod body as a horizontal extension section, wherein the end of the horizontal extension section away from the top end of the forming rod body is closed, and the end closer to the top end of the forming rod body is open and communicates with the top end of the forming rod body.

[0008] An alternative is that the forming rod tip is arranged longitudinally; a plurality of positioning grooves are arranged along the extension direction of the horizontal extension section and recessed inward from the upper sidewall of the horizontal extension section; the lower sidewall of the horizontal extension section is provided with a through elongated hole, through which the forming rod tip can slide along the extension direction of the horizontal extension section.

[0009] An alternative embodiment is that the forming rod tip includes: a rod body, which is longitudinally inserted into the elongated hole; and a movable snap-fit ​​assembly, located within the horizontal extension section, with its lower end rotatably connected to the top end of the rod body and its upper end selectively snapped into any one of the plurality of positioning slots.

[0010] An alternative embodiment is that the movable locking assembly includes: a movable slider, the lower end of which is rotatably connected to the top end of the rod body; and an elastic locking block, which is vertically connected to the upper end of the movable slider and can be raised to engage with any one of the plurality of positioning slots or lowered to disengage from any one of the plurality of positioning slots during the sliding of the forming rod tip along a first direction, wherein the first direction is the direction away from the top end of the forming rod body.

[0011] An alternative embodiment is that the elastic snap-fit ​​block includes a snap-fit ​​member and an elastic connector connecting the snap-fit ​​member and the movable slider; during the sliding of the forming rod tip along the first direction, when the snap-fit ​​member moves to correspond to any one of the plurality of positioning slots, the elastic connector drives the snap-fit ​​member to rise so as to snap into any one of the plurality of positioning slots.

[0012] An alternative approach is that the sidewall of the positioning groove is provided with a first sliding slope; the snap-fit ​​member is provided with a second sliding slope that cooperates with the first sliding slope; during the process of the forming rod tip sliding along the first direction, the snap-fit ​​member is driven to lower and disengage from any of the plurality of positioning grooves under the cooperation of the first sliding slope and the second sliding slope.

[0013] An alternative solution is that an elastic telescopic member is connected between the end of the movable slider away from the top of the forming rod body and the closed end of the horizontal extension section, and a pressing connector extending to the top of the forming rod body and subjected to external force is connected to the other end of the movable slider near the top of the forming rod body.

[0014] An alternative is that the pressing connector includes a pressing plunger disposed at the top of the forming rod body and a rigid connector disposed inside the forming rod body, with one end connected to the pressing plunger and the other end connected to the movable slider.

[0015] An alternative approach is that the inner wall of the horizontal extension section is provided with a slide rail, the slide rail including a forward path and a return path, the forward path moving from a starting position to an ending position along the first direction, and the return path returning from the ending position to the starting position, wherein the forward path includes at least the interval of the elastic snap block from the positioning groove located at the first end position in the first direction to the positioning groove located at the end position in the first direction.

[0016] An optional solution is that the outgoing route includes a straight slide from the starting position to the ending position, and the slot of the positioning groove is connected to the straight slide of the outgoing route; the return route includes an upward sliding arc slide, a return straight slide, and a downward sliding arc slide connected in sequence, wherein the upward sliding arc slide is connected to the ending position of the straight slide of the outgoing route, and the downward sliding arc slide is connected to the starting position of the straight slide of the outgoing route.

[0017] An alternative is that the movable slider is disc-shaped and its axial direction is along the first direction. A clearance groove is formed on the circumferential surface of the movable slider. The clearance groove extends along the circumferential surface of the movable slider, and a connecting shaft extending along the first direction is provided in the clearance groove. The upper end of the rod extends into the clearance groove and is rotatably connected to the connecting shaft.

[0018] Alternatively, the molding rod body may be made of carbon-based composite material; and / or, the molding rod body may also be provided with a handle, the surface of which may have an anti-slip texture or an anti-slip coating.

[0019] Beneficial effects:

[0020] This application provides a quartz crucible forming rod, including a forming rod body and a forming rod tip. The forming rod body is hollow, which greatly reduces the weight of the forming rod body and reduces heat conduction efficiency. Multiple positioning grooves are provided inside the bottom end of the forming rod body, and the forming rod tip can be locked into these grooves, allowing for different distances between the forming rod tip and the forming rod body. This means that when the forming rod tip is fixed at the central axis position, the forming rod body and the forming mold can have different distances, enabling the shaping of sand layers of different thicknesses. Compared to the relatively simple structure of traditional forming rods, which often use multiple forming rods of varying lengths to effectively prevent mixing of sand layers and ensure uniform distribution, this design only requires adjusting the forming rod tip to lock into different positioning grooves. It offers high flexibility, simplifies the operation process, reduces operational difficulty, and greatly improves operator convenience and work efficiency, opening up a new path for cost control and quality improvement in the quartz crucible industry. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the quartz crucible forming rod in this embodiment;

[0022] Figure 2 This is a schematic diagram of the internal structure of the horizontal extension segment in this embodiment;

[0023] Figure 3 This is a schematic diagram of the internal structure of the movable card assembly in this embodiment;

[0024] Figure 4 This is a schematic diagram of the motion trajectory during the adjustment process of the forming rod tip in this embodiment;

[0025] Figure 5 This is a schematic diagram of the structure in this embodiment where the elastic locking block at the upper end of the rod is locked into the positioning groove at the front end;

[0026] Figure 6 This is a schematic diagram of the structure in this embodiment where the elastic locking block at the upper end of the rod is inserted into the middle positioning groove;

[0027] Figure 7 This is a schematic diagram of the structure in this embodiment where the elastic locking block at the upper end of the rod is engaged in the end positioning groove;

[0028] Figure 8 This is a schematic diagram of the structure after the elastic locking block at the upper end of the rod enters the return linear slide in this embodiment. Figure 1 ;

[0029] Figure 9 This is a schematic diagram of the structure after the elastic locking block at the upper end of the rod enters the return linear slide in this embodiment. Figure 2 ;

[0030] Figure 10 This is a schematic diagram of the structure at the connection point of the elastic locking block at the upper end of the rod body into the return straight slide and the downward arc slide in this embodiment.

[0031] Figure 11 This is a schematic diagram of the connection structure between the movable slider and the rod in this embodiment;

[0032] Figure 12 This is a schematic diagram of the structure of the slider relative to the rod after rotation in this embodiment. Figure 1 ;

[0033] Figure 13 This is a schematic diagram of the structure of the slider relative to the rod after rotation in this embodiment. Figure 2 .

[0034] Figure label:

[0035] 1. Forming rod body; 11. Positioning groove; 111. First sliding inclined surface; 12. Horizontal extension section; 121. Long strip hole; 2. Forming rod tip; 21. Rod body; 3. Moving snap-fit ​​assembly; 31. Moving slider; 311. Relief groove; 312. Connecting shaft; 313. Receiving cavity; 32. Elastic snap-fit ​​block; 321. Snap-fit ​​component; 3211. Second sliding inclined surface; 322. Elastic connecting component; 4. Elastic telescopic component; 5. Pressing connecting component; 51. Pressing plunger; 52. Rigid connecting component; 6. Slide; 61. Outward stroke; 611. Outward stroke straight slide; 62. Return stroke; 621. Upward sliding arc slide; 622. Return stroke straight slide; 623. Downward sliding arc slide; 7. Handle. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0037] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] The following detailed description, in conjunction with the accompanying drawings, describes a quartz crucible forming rod provided in this embodiment. Please refer to the attached drawings. Figure 1 and Figure 2 As shown, the forming rod includes a forming rod body 1 and a forming rod tip 2. The forming rod body 1 is hollow and has a profile that matches the quartz crucible, including a bottom end and a top end. A plurality of positioning grooves 11 are provided inside the bottom end of the forming rod body 1. The forming rod tip 2 is movably disposed at the bottom end of the forming rod body 1, with one end located inside the bottom end of the forming rod body 1 and selectively engaging any one of the plurality of positioning grooves 11, and the other end located outside the bottom end of the forming rod body 1 to position the forming rod body 1 at different positions.

[0039] In this embodiment, the forming rod body 1 is closely matched with the inner contour arc of the quartz crucible. The lower end of the forming rod body 1 is fixed at the central axis of the mold. The forming rod body 1 rotates around the fixed point, and the rotation trajectory shapes the quartz sand on the mold into the shape of a quartz crucible.

[0040] The forming rod body 1 has a hollow design to reduce overall weight and minimize heat transfer efficiency. Multiple positioning grooves 11 are provided inside the bottom end of the forming rod body 1. The forming rod tip 2 is movably positioned at the bottom end of the forming rod body 1, and the end of the forming rod tip 2 inside the bottom end of the forming rod body 1 can selectively engage with any one of the multiple positioning grooves 11. This allows the end of the forming rod tip 2 outside the bottom end of the forming rod body 1 to be positioned at different positions, enabling different distances between the forming rod tip 2 and the forming rod body 1. Therefore, when the forming rod tip 2 is fixed at the central axis position, different distances can be maintained between the forming rod body 1 and the forming mold. This allows for shaping sand layers of different thicknesses. For example, if the outer sand layer is the thinnest, the forming rod tip 2 needs to engage with the outermost positioning groove 11 to maximize the distance between the forming rod tip 2 and the forming rod body 1. This is because the central axis of the mold and the side wall... The distance between the forming rod tip 2 and the mold is fixed. When the forming rod tip 2 is fixed at the central axis of the mold, the distance between the forming rod body 1 and the mold is minimized to shape the thinner quartz sand. After adding the sand layer, it needs to be locked in the middle positioning groove 11. After adding the inner sand layer, it needs to be locked in the innermost positioning groove 11 to minimize the distance between the forming rod tip 2 and the forming rod body 1. When the forming rod tip 2 is fixed at the central axis of the mold, the distance between the forming rod body 1 and the mold is maximized to shape the thicker quartz sand. In this way, the operation steps of frequently changing the forming rod due to the different thicknesses of the inner and outer quartz sand layers are reduced during crucible making, simplifying the operation process (reducing working time by about 30%). This design also greatly improves the convenience of operation and work efficiency, and effectively improves the quality of the quartz crucibles produced.

[0041] Please refer to Figure 2 and Figure 3 As shown in this embodiment, it should be noted that the bottom end of the molding rod body 1 is set as a horizontal extension section 12. Among the two opposite ends of the horizontal extension section 12 along the extension direction, the end away from the top end of the molding rod body 1 is closed, and the end close to the top end of the molding rod body 1 is open and communicates with the top end of the molding rod body 1.

[0042] In some embodiments, the forming rod body 1 has an outer contour that conforms to the inner contour of the quartz crucible, and the bottom end of the forming rod body 1 is configured as a horizontal extension section 12. The horizontal extension section 12 is preferably cylindrical, with the axial direction of the cylinder extending horizontally and having the same diameter as the forming rod body 1. The horizontal extension section 12 is integrally connected to the bottom end of the forming rod body 1. Of the two opposite ends of the horizontal extension section 12 along the extension direction, the end away from the top end of the forming rod body 1 is closed, and the end near the top end of the forming rod body 1 is open and communicates with the top end of the forming rod body 1.

[0043] Please refer to Figure 2 and Figure 3As shown in this embodiment, it should be noted that the forming rod tip 2 is arranged longitudinally; the plurality of positioning grooves 11 are arranged along the extension direction of the horizontal extension section 12 and are recessed inward from the upper sidewall of the horizontal extension section 12; the lower sidewall of the horizontal extension section 12 is provided with a through elongated hole 121, which extends in the horizontal direction, and the forming rod tip 2 can slide along the axial direction of the horizontal extension section 12 by passing through the elongated hole 121.

[0044] In some embodiments, a plurality of positioning grooves 11 are arranged along the extending direction of the horizontal extension section 12 and recessed inward from the upper sidewall of the horizontal extension section 12. The number of positioning grooves 11 can be 3, 4, 5, etc. In this embodiment, only 3 positioning grooves 11 are used as an example for description. The three positioning grooves 11 are arranged sequentially along the axial direction of the horizontal extension section 12, preferably equidistant. The positioning groove 11 near the open end of the horizontal extension section 12 is the first end position, i.e., the innermost, and the positioning groove 11 near the closed end of the horizontal extension section 12 is the last end position, i.e., the outermost. The lower sidewall of the horizontal extension section 12 is provided with an elongated hole 121 communicating with the interior (e.g., Figure 5 As shown, the elongated hole 121 extends along the extension direction of the horizontal extension section 12. The forming rod tip 2 is arranged longitudinally, and the upper end of the forming rod tip 2 passes through the elongated hole 121 and can slide within the elongated hole 121 along the extension direction of the horizontal extension section 12.

[0045] Please refer to Figure 2 and Figure 3 As shown in the figure, in this embodiment, it should also be noted that the forming rod tip 2 includes a rod body 21 and a movable snap-fit ​​assembly 3. The rod body 21 is longitudinally inserted into the elongated hole 121; the movable snap-fit ​​assembly 3 is located in the horizontal extension section 12, with its lower end rotatably connected to the top end of the rod body 21, and its upper end selectively snapping into any one of the multiple positioning slots 11.

[0046] In some embodiments, the rod 21 can slide along the extension direction of the elongated hole 121 to change its position. Thus, by moving its position within the elongated hole 121, the rod 21 can achieve a correspondence between the position of the movable locking assembly 3 at its top and the positioning groove 11 at the top of the horizontal extension 12. Then, the movable locking assembly 3 can selectively engage with any one of the multiple positioning grooves 11, thereby changing and fixing the position of the rod 21. The rod 21 can move flexibly during operation, allowing it to adapt to quartz crucible molds of different shapes and sizes.

[0047] Please refer to Figure 2 and Figure 3As shown in this embodiment, it should also be noted that the movable locking assembly 3 includes a movable slider 31 and an elastic locking block 32. The lower end of the movable slider 31 is rotatably connected to the top end of the rod body 21. The elastic locking block 32 is vertically connected to the upper end of the movable slider 31. During the process of the forming rod tip 2 sliding along the first direction, it can be raised to lock into any one of the multiple positioning grooves 11 or lowered to disengage from any one of the multiple positioning grooves 11, wherein the first direction is the direction away from the top end of the forming rod body 1.

[0048] In some embodiments, the movable locking assembly 3 includes a movable slider 31 and an elastic locking block 32. The movable slider 31 is disposed within the horizontal extension section 12 and is movable along the extension direction of the horizontal extension section 12. The lower end of the movable slider 31 is rotatably connected to the top end of the rod body 21. Thus, by controlling the movement of the movable slider 31 within the horizontal extension section 12, the movement of the rod body 21 along the elongated hole 121 can be controlled. The elastic locking block 32 is vertically and vertically connected to the upper end of the movable slider 31. During the sliding of the rod body 21 along the first direction, it can be raised to engage with any one of the plurality of positioning grooves 11 or lowered to disengage from any one of the plurality of positioning grooves 11. Thus, when the rod body 21 slides along the first direction, the elastic locking block 32 can be raised to engage with the positioning groove 11, and when the rod body 21 slides along the first direction, the elastic locking block 32 can be lowered to disengage from the positioning groove 11. The first direction is the direction away from the top end of the molded rod body 1, that is, the direction from the open end to the closed end of the horizontal extension section 12. Therefore, in this embodiment, the forming rod tip 2 can be fixed after the position is adjusted by the cooperation of the movable slider 31 and the elastic locking block 32.

[0049] Please continue to refer to Figure 2 and Figure 3 As shown in this embodiment, it should also be noted that the elastic snap-fit ​​block 32 includes a snap-fit ​​member 321 and an elastic connector 322 that connects the snap-fit ​​member 321 and the movable slider 31; during the process of the forming rod tip 2 sliding along the first direction, when the snap-fit ​​member 321 moves to correspond to any one of the plurality of positioning grooves 11, the elastic connector 322 drives the snap-fit ​​member 321 to rise so as to snap into any one of the plurality of positioning grooves 11.

[0050] In some embodiments, the elastic locking block 32 includes a locking member 321 and an elastic connector 322. The upper surface of the movable slider 31 has a receiving cavity 313. The elastic connector 322 is disposed in the receiving cavity 313. The lower end of the elastic connector 322 is connected to the bottom of the receiving cavity 313, and the upper end is connected to the locking member 321. By externally squeezing the locking member 321, the locking member 321 can be moved downward into the receiving cavity 313 and the elastic connector 322 can be compressed at the same time. When the external force is released, the elastic connector 322 can restore its elasticity. Then, through the elasticity of the elastic connector 322, the locking member 321 is popped upward and returned to its original position. Therefore, as the forming rod tip 2 slides along the first direction, when the locking member 321 moves to a position that does not correspond to any of the plurality of positioning grooves 11, it is squeezed into the receiving cavity 313 due to the restriction of the upper sidewall of the horizontal extension section 12 of the forming rod tip 2. When it moves to correspond to any of the plurality of positioning grooves 11, the positioning groove 11 is recessed from the upper sidewall of the horizontal extension section 12, thereby releasing the restriction of the upper sidewall of the horizontal extension section 12. Under the elastic force of the elastic connector 322, the locking member 321 rises to lock into the positioning groove 11. When the snap-fit ​​321 needs to disengage from the positioning groove 11, simply press the snap-fit ​​321 down to compress it into the receiving cavity 313. At this time, the snap-fit ​​321 disengages from the positioning groove 11, and the forming rod tip 2 can continue to slide along the first direction. During the sliding process, the inner top wall of the horizontal extension section 12 presses against the snap-fit ​​321 until it moves to the position of the snap-fit ​​321 corresponding to the next positioning groove 11. At this time, the snap-fit ​​321 rises again under the elastic force of the elastic connector 322 and snaps into the positioning groove 11.

[0051] In this embodiment, it should also be noted that the side wall of the positioning groove 11 is provided with a first sliding slope 111; the snap-fit ​​member 321 is provided with a second sliding slope 3211 that cooperates with the first sliding slope 111; during the process of the forming rod tip 2 sliding along the first direction, the snap-fit ​​member 321 is driven to lower under the cooperation of the first sliding slope 111 and the second sliding slope 3211 to disengage from any one of the multiple positioning grooves 11.

[0052] In some embodiments, the sidewall of the positioning groove 11 may be provided with a first sliding slope 111, and the snap-fit ​​member 321 is provided with a second sliding slope 3211 that cooperates with the first sliding slope 111. During the process of the forming rod tip 2 sliding along the first direction, the snap-fit ​​member 321 can be driven to lower and disengage from any of the plurality of positioning grooves 11 by the cooperation of the first sliding slope 111 and the second sliding slope 3211. Therefore, with this design, during the process of the forming rod tip 2 sliding along the first direction, the snap-fit ​​member 321 can be raised and snapped into the positioning groove 11 by the action of the elastic connector 322, and at the same time, the snap-fit ​​member 321 can be driven to lower and disengage from the positioning groove 11 by the cooperation of the first sliding slope 111 and the second sliding slope 3211.

[0053] In one example, the positioning groove 11 is set as a right triangle, and the snap-fit ​​321 is set as a right triangle block adapted to the positioning groove 11. The side of the positioning groove 11 near the closed end of the horizontal extension 12 is set as a hypotenuse, and the inclination direction is inclined towards the closed section of the horizontal extension 12 so as to be the same as the movement direction of the forming rod tip 2 along the first direction. Thus, during the process of the forming rod tip 2 sliding along the first direction, that is, towards the closed end of the horizontal extension 12, the snap-fit ​​321 can be driven to lower and disengage from the positioning groove 11 through the cooperation of the first sliding inclined surface 111 and the second sliding inclined surface 3211.

[0054] Please refer to Figures 1-3 As shown in this embodiment, it should also be noted that an elastic telescopic member 4 is connected between the end of the movable slider 31 away from the top of the forming rod body 1 and the closed end of the horizontal extension section 12, and a pressing connector 5 that extends to the top of the forming rod body 1 and is pressed by external force is connected to the end of the movable slider 31 near the top of the forming rod body 1.

[0055] In some embodiments, an elastic telescopic member 4 is connected between the end of the movable slider 31 away from the top of the forming rod body 1 (i.e., the left side) and the closed end of the horizontal extension section 12. When the movable slider 31 moves toward the closed end of the horizontal extension section 12, it can compress the elastic telescopic member 4. The elastic telescopic member 4 can be a spring made of a high-strength, high-temperature resistant alloy material such as Inconel 718 to ensure stability and durability in high-temperature environments. The spring has a wire diameter of 2mm, an effective number of coils of 5, and a free length of 80mm. The elastic telescopic member 4 allows the forming rod body 1 to move flexibly during operation. A pressing connector 5 extending to the top of the forming rod body 1 is connected to the end of the movable slider 31 near the top of the forming rod body 1 (i.e., the right side). The pressing connector 5 can push the movable slider 31 to move in the first direction within the horizontal extension section 12 by pressing, while simultaneously causing the elastic locking block 32 to start from the positioning groove 11 at the first end position and pass through each positioning groove 11 in sequence. Thus, the operator can easily push the movable slider 31 located in the horizontal extension section 12 by pressing the connecting piece 5. At the same time, the movable slider 31 compresses the elastic telescopic piece 4 during its movement. When the external force is released from the pressing connecting piece 5, the elastic telescopic piece 4 can apply a force to the movable slider 31 in the opposite direction to the first direction, and then the movable slider 31 returns to its initial position, which is convenient for the next position adjustment. When the movable slider 31 moves from the first end position to the closed end of the horizontal extension section 12, the elastic locking block 32 also starts from the positioning groove 11 at the first end position and passes through each positioning groove 11 in sequence, thereby flexibly adjusting the position of the forming rod tip 2.

[0056] In one example, the pressing connector 5 includes a pressing plunger 51 and a rigid connector 52. The pressing plunger 51 is located at the top of the forming rod body 1, and the rigid connector 52 is located in the hollow of the forming rod body 1. One end of the rigid connector 52 is connected to the pressing plunger 51, and the other end is connected to the right side of the moving slider 31. Thus, by using the pressing plunger 51, it is convenient for personnel to operate the moving slider 31. Preferably, the rigid connector 52 is a steel wire rope.

[0057] Please refer to Figures 4-10As shown in this embodiment, it should also be noted that the inner wall of the horizontal extension section 12 is provided with a slide rail 6, which includes a forward stroke 61 and a return stroke 62. The forward stroke 61 moves from a starting position to an ending position along a first direction, and the return stroke 62 returns from the ending position to the starting position. The forward stroke 61 includes at least the interval from the positioning groove 11 at the first end position in the first direction to the positioning groove 11 at the end position in the first direction for the elastic locking block 32. As described above, when the operator drives the movable slider 31 to move along the forward stroke 61 to the ending position by pressing the connecting member 5, the elastic telescopic member 4 is compressed. When the external force releases the force on the pressing connecting member 5, the elastic telescopic member 4 can apply a force opposite to the first direction to the movable slider 31, so that the movable slider 31 can return from the ending position to the starting position along the return stroke 62.

[0058] In some embodiments, the resilient locking block 32 can sequentially engage with each positioning slot 11 during its movement from the starting position to the ending position along the first direction 61. The return journey 62 returns from the ending position to the starting position, and the outgoing journey 61 includes at least the interval from the positioning slot 11 at the beginning position to the positioning slot 11 at the end position along the first direction, that is, the interval from the positioning slot 11 at the beginning position to the positioning slot 11 at the end position along the first direction is part of the outgoing journey 61. The resilient locking block 32 sequentially passes through each positioning slot 11 during its movement from the starting position to the ending position along the first direction 61. Using the slide rail 6, the resilient locking block 32 can start from the starting position along the outgoing journey 61, engage with each positioning slot 11 until it reaches the ending position, and then return to the starting position along the return journey 62.

[0059] In some embodiments, the outgoing path 61 includes a straight slide 611 from the starting position to the ending position, that is, the first end of the outgoing straight slide 611 corresponds to the starting position and the last end corresponds to the ending position, and the length of the outgoing straight slide 611 is longer than the interval of the positioning grooves 11 at the first and last ends. Each positioning groove 11 is connected to the outgoing straight slide 611. Therefore, during the process of the elastic locking block 32 moving from the starting position to the ending position in the outgoing straight slide 611 along the first direction, when the elastic locking block 32 moves to the position where the positioning groove 11 and the outgoing straight slide 611 are connected, the elastic locking block 32 is engaged with the elastic connector 322 (e.g., Figure 3 Under the action of (as shown), it rises and gets stuck in the positioning groove 11. When the elastic locking block 32 continues to move in the first direction, the locking member 321 is driven to lower by the cooperation of the first sliding inclined surface 111 and the second sliding inclined surface 3211 to get out of the positioning groove 11. This continues until the elastic locking block 32 gets out of the last positioning groove 11 and then continues to move to the termination position.

[0060] The return path 62 includes an upward-sliding arc-shaped slide 621, a return straight slide 622, and a downward-sliding arc-shaped slide 623 connected sequentially. The upward-sliding arc-shaped slide 621 connects to the end position of the outgoing straight slide 611, and the downward-sliding arc-shaped slide 623 connects to the beginning position of the outgoing straight slide 611. After the elastic locking block 32 moves to the end position of the outgoing straight slide 611, it continues forward, entering the upward-sliding arc-shaped slide 621, the return straight slide 622, and the downward-sliding arc-shaped slide 623 of the return path 62 before returning to the beginning position of the outgoing straight slide 611, thus completing one cycle. With the return path 62 setting, the elastic locking block 32 does not need to return along the original path.

[0061] In one example, the upward-sliding curved slide 621 spirals upward along the inner wall of the horizontal extension section 12 and its end connects to the beginning of the return straight slide 622 with an arc transition, ensuring that the elastic locking block 32 can enter the return straight slide 622 from the upward-sliding curved slide 621. The return straight slide 622 extends towards the open end of the horizontal extension section 12 and its end connects to the beginning of the downward-sliding curved slide 623 with an arc transition, ensuring that the elastic locking block 32 can enter the downward-sliding curved slide 623 from the return straight slide 622. The downward-sliding curved slide 623 spirals downward along the inner wall of the horizontal extension section 12.

[0062] like Figure 4 and Figure 5 As shown, during the process of the elastic locking block 32 moving from the starting position to the ending position in the outgoing straight slide 611 along the first direction, the elastic locking block 32 locks into the positioning groove 11 at the beginning position.

[0063] like Figure 4 He Ru Figure 6 As shown, during the process of the elastic locking block 32 moving from the starting position to the ending position in the outgoing straight slide 611 along the first direction, the elastic locking block 32 locks into the positioning groove 11 in the middle position.

[0064] like Figure 4 He Ru Figure 7 As shown, during the process of the elastic locking block 32 moving from the starting position to the ending position in the outgoing straight slide 611 along the first direction, the elastic locking block 32 locks into the positioning groove 11 at the end position.

[0065] like Figure 8As shown, after the elastic locking block 32 moves to the termination position in the outgoing straight slide 611 along the first direction, the elastic locking block 32 enters the upper sliding arc slide 621 of the return 62. At the same time as entering the upper sliding arc slide 621, the moving slider 31 rotates around its own axis to ensure that the elastic locking block 32 smoothly enters the upper sliding arc slide 621 and finally enters the return straight slide 622. When the elastic locking block 32 is in the return straight slide 622, the moving slider 31 moves towards the open end of the horizontal extension section 12 under the elastic force of the elastic telescopic member 4. At this time, the elastic locking block 32 will move towards the lower arc slide 623 in the return straight slide 622.

[0066] like Figure 4 He Ru Figure 9 As shown, the movable slider 31 continues to move towards the open end of the horizontal extension section 12, and the elastic locking block 32 continues to move towards the downward arc-shaped slide 623 within the return straight slide 622.

[0067] like Figure 10 As shown, the movable slider 31 continues to move towards the open end of the horizontal extension section 12, and the elastic locking block 32 continues to move towards the downward arc slide 623 within the return straight slide 622 until it reaches the corner position of the return straight slide 622 and the downward arc slide 623. At this time, the elastic locking block 32 can continue to move to the starting position of the outgoing straight slide 611 under the guidance of the downward arc slide 623.

[0068] Therefore, by pressing the connecting piece 5, the movable slider 31 moves along the first direction within the horizontal extension section 12. The elastic locking block 32 can move from the starting position to the ending position within the outgoing straight slide 611. Then, through the action of the elastic telescopic piece 4, the elastic locking block 32 can return from the ending position to the starting position via the upward sliding arc slide 621, the return straight slide 622, and the downward sliding arc slide 623 of the return 62. During this process, the movable slider 31 rotates to keep the movement trajectory of the rod 21 always forward and backward.

[0069] Please refer to Figure 2 , Figures 11-13 As shown in the figure, in this embodiment, it should also be noted that the movable slider 31 is disc-shaped and its axial direction is along the first direction. A relief groove 311 is provided on the circumferential surface of the movable slider 31. The relief groove 311 extends along the circumferential surface of the movable slider 31, and a connecting shaft 312 extending along the first direction is provided in the relief groove 311. The upper end of the rod 21 extends into the relief groove 311 and is rotatably connected to the connecting shaft 312.

[0070] In some embodiments, the movable slider 31 is configured as a disc, and the movable slider 31 and the horizontal extension 12 are coaxially arranged, that is, the axial direction is along the first direction. A clearance groove 311 is formed on the circumferential surface of the movable slider 31, which extends along the circumferential surface of the movable slider 31, and a connecting shaft 312 is fixed in the clearance groove 311, which extends along the first direction. The upper end of the rod 21 extends into the clearance groove 311 and is rotatably connected to the connecting shaft 312. Due to the restriction of the elongated hole 121, the rod 21 can only slide back and forth. However, by extending the upper end of the rod 21 into the clearance groove 311 and rotatably connecting it to the connecting shaft 312, and by the clearance groove 311 making way for the rod 21, the movable slider 31 can rotate within the horizontal extension 12, thereby rotating the elastic locking block 32 into the return stroke 62.

[0071] In this embodiment, it should also be noted that the manufacturing process of the quartz crucible requires withstanding extremely high temperatures. Traditional materials used to make the molding rod often struggle to maintain sufficient strength and stability under extreme high-temperature conditions, thus affecting the molding effect and product quality. In this embodiment, the molding rod body 1 is made of carbon fiber reinforced carbon-based composite material. As an advanced carbon-based composite material with graphite fiber as reinforcement, carbon fiber reinforced carbon-based composite material not only possesses 1.7 g / cm³... 3 The ultra-low density of carbon fiber reinforced carbon-based composites allows them to maintain excellent strength and stability even at extreme temperatures up to 2200℃, perfectly meeting the high-temperature environmental requirements of quartz crucible manufacturing. These properties make carbon fiber reinforced carbon-based composites an ideal choice for quartz crucible manufacturing, effectively preventing the introduction of metal impurities, reducing metal impurities in quartz sand caused by rod wear (80% lower than the original rod metal content), and adapting to high-temperature working environments. The graphite fiber volume fraction is 50%–60%, and the matrix carbon density is 1.6–1.8 g / cm³. 3 This design is significantly different from traditional stainless steel or aluminum alloy formed rods. Carbon fiber reinforced carbon-based composites, with their superior high-temperature resistance, high strength, and low density, have shown great application potential in the manufacture of quartz crucibles. This material not only perfectly adapts to high-temperature working environments but also effectively avoids the introduction of metallic impurities, thus ensuring the purity and quality of the quartz crucible.

[0072] In one example, the molding rod body 1 is manufactured using advanced composite material molding technology and precision machining processes. During manufacturing, parameters such as material ratio, molding temperature, and pressure are strictly controlled to ensure that the quality and performance of the molding rod meet design requirements, as detailed below:

[0073] Pre-fabricated carbon / carbon rods (high-temperature graphitization treatment, temperature 2500℃, pressure 50MPa);

[0074] Laser-cut hollow structure (inner diameter Φ20mm, wall thickness 3mm);

[0075] Assemble the elastic expansion joint 4 (preload 10mm, installation torque 5N·m).

[0076] Please refer to Figure 1 As shown in this embodiment, it should also be noted that the top outer contour of the forming rod body 1 is provided with a handle 7, and the surface of the handle 7 is provided with anti-slip texture or anti-slip coating.

[0077] In some embodiments, to improve ease of operation, a handle 7 is added to the outer contour of the top of the molding rod body 1. The handle 7 adopts an ergonomic design principle, making it easy for operators to hold and control the molding rod. The handle 7 is 120mm long and 30mm in diameter. The surface of the handle 7 can be provided with anti-slip texture or anti-slip coating to improve the stability and safety of holding. For example, the surface is covered with a silicone anti-slip layer with a friction coefficient ≥0.8, which allows operators to easily hold and control the molding rod body 1, further simplifying the operation process and reducing the difficulty of operation.

[0078] In this embodiment, it should also be noted that the diameter of the rod body 21 of the forming rod tip 2 is the same as the diameter of the central hole at the bottom of the quartz crucible mold, which ensures precise positioning and stability during the forming process.

[0079] The implementation principle of this embodiment is as follows: During use, the forming rod body 1 is inserted into the quartz crucible mold, aligning the bottom end of the forming rod tip 2's body 21 with the center hole at the bottom of the mold; the forming rod body 1 is controlled by the handle 7. When it is necessary to adjust the position of the forming rod tip 2, the sliding block 3 is controlled to slide in the first direction within the horizontal extension section 12 by pressing the pressing plunger 51 of the top pressing connector 5. During the sliding process, the locking member 321 of the elastic locking block 32 can be raised to engage with any one of the multiple positioning grooves 11 or lowered to disengage from any one of the multiple positioning grooves 11, thereby adjusting the position of the forming rod tip 2 so that the forming rod body 1 reaches different lengths. Different lengths correspond to different thicknesses of quartz sand. The quartz crucible is formed in a high-temperature environment, during which the forming rod body 1 maintains a stable position to ensure the tight compaction and uniform forming of the quartz sand; after the forming is completed, the forming rod body 1 is removed, and high-temperature melting yields a high-quality quartz crucible product. In this embodiment, the innovative design of carbon fiber reinforced carbon-based composite material and spring structure effectively solves the problems of easy wear and easy introduction of metal impurities in traditional forming rods, significantly improves the purity and internal surface quality of quartz crucibles, and the unique structural design also greatly improves the convenience of operation and work efficiency, significantly improves the manufacturing quality of quartz crucibles, and reduces production costs and the risk of metal impurity contamination.

[0080] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A quartz crucible forming rod, characterized in that, include: A forming rod body (1) is hollow and has a profile matching the quartz crucible, including a bottom end and a top end. The bottom end of the forming rod body (1) has multiple positioning grooves (11). The forming rod tip (2) is movably disposed at the bottom end of the forming rod body (1). One end is located inside the bottom end of the forming rod body (1) and can be selectively engaged in any one of the multiple positioning grooves (11). The other end is located outside the bottom end of the forming rod body (1) to position the forming rod body (1) at different positions.

2. The quartz crucible forming rod according to claim 1, characterized in that, The bottom end of the molding rod body (1) is configured as a horizontal extension section (12). Of the two opposite ends of the horizontal extension section (12) along the extension direction, the end away from the top end of the molding rod body (1) is closed, and the end close to the top end of the molding rod body (1) is open and communicates with the top end of the molding rod body (1).

3. The quartz crucible forming rod according to claim 2, characterized in that, The forming rod tip (2) is arranged longitudinally; The plurality of positioning grooves (11) are arranged along the extension direction of the horizontal extension section (12) and recessed inward from the upper sidewall of the horizontal extension section (12); The lower sidewall of the horizontal extension section (12) is provided with a through-hole (121), and the forming rod tip (2) can slide along the extension direction of the horizontal extension section (12) by passing through the through-hole (121).

4. The quartz crucible forming rod according to claim 3, characterized in that, The forming rod tip (2) includes: The rod (21) is longitudinally inserted into the elongated hole (121); The movable snap-fit ​​assembly (3) is located within the horizontal extension (12), with its lower end rotatably connected to the top end of the rod (21) and its upper end selectively snapping into any one of the plurality of positioning slots (11).

5. The quartz crucible forming rod according to claim 4, characterized in that, The mobile card connector (3) includes: The movable slider (31) is rotatably connected to the top of the rod (21) at its lower end; The elastic snap-fit ​​block (32) is vertically connected to the upper end of the movable slider (31) and can be raised to engage with any one of the plurality of positioning grooves (11) or lowered to disengage from any one of the plurality of positioning grooves (11) as the tip of the forming rod (2) slides along a first direction, wherein the first direction is the direction away from the top end of the forming rod body (1).

6. The quartz crucible forming rod according to claim 5, characterized in that, The elastic snap-fit ​​block (32) includes a snap-fit ​​member (321) and an elastic connector (322) connecting the snap-fit ​​member (321) and the movable slider (31); During the sliding of the forming rod tip (2) along the first direction, when the snap-fit ​​member (321) moves to correspond to any of the plurality of positioning slots (11), the elastic connector (322) drives the snap-fit ​​member (321) to rise to snap into any of the plurality of positioning slots (11).

7. The quartz crucible forming rod according to claim 6, characterized in that, The side wall of the positioning groove (11) is provided with a first sliding inclined surface (111); the snap-fit ​​component (321) is provided with a second sliding inclined surface (3211) that cooperates with the first sliding inclined surface (111); During the sliding of the forming rod tip (2) along the first direction, the snap-fit ​​member (321) is driven to descend and disengage from any of the plurality of positioning grooves (11) under the cooperation of the first sliding ramp (111) and the second sliding ramp (3211).

8. The quartz crucible forming rod according to claim 7, characterized in that, An elastic telescopic member (4) is connected between the end of the movable slider (31) away from the top of the forming rod body (1) and the closed end of the horizontal extension section (12). The other end of the movable slider (31) near the top of the forming rod body (1) is connected to a pressing connector (5) that extends to the top of the forming rod body (1) and is pressed by external force.

9. The quartz crucible forming rod according to claim 8, characterized in that, The pressing connector (5) includes a pressing plunger (51) disposed at the top of the molding rod body (1) and a rigid connector (52) disposed inside the molding rod body (1) and connected at one end to the pressing plunger (51) and at the other end to the movable slider (31).

10. The quartz crucible forming rod according to any one of claims 5-9, characterized in that, The inner wall of the horizontal extension section (12) is provided with a slide rail (6). The slide (6) includes a going route (61) and a returning route (62), the going route (61) moving along the first direction from a starting position to an ending position, and the returning route (62) returning from the ending position to the starting position. The outgoing route (61) includes at least the interval of the resilient snap-fit ​​block (32) from the positioning groove (11) located at the first end position in the first direction to the positioning groove (11) located at the end position in the first direction.

11. The quartz crucible forming rod according to claim 10, characterized in that, The outgoing route (61) includes an outgoing straight slide (611) from the starting position to the ending position, and the slot of the positioning groove (11) is connected to the outgoing straight slide (611). The return journey (62) includes an upward-sliding arc-shaped slide (621), a return straight slide (622), and a downward-sliding arc-shaped slide (623) connected in sequence. The upward-sliding arc-shaped slide (621) is connected to the end position of the outgoing straight slide (611), and the downward-sliding arc-shaped slide (623) is connected to the beginning position of the outgoing straight slide (611).

12. The quartz crucible forming rod according to claim 10, characterized in that, The movable slider (31) is disc-shaped and its axial direction is along the first direction. A relief groove (311) is provided on the circumferential surface of the movable slider (31). The relief groove (311) extends along the circumferential surface of the movable slider (31), and a connecting shaft (312) extending along the first direction is provided in the relief groove (311). The upper end of the rod (21) extends into the relief groove (311) and is rotatably connected to the connecting shaft (312).

13. The quartz crucible forming rod according to claim 1, characterized in that, The main body (1) of the molding rod is made of carbon-based composite material; And / or, the forming rod body (1) is also provided with a handle (7), the surface of which is provided with anti-slip texture or anti-slip coating.

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