A repair device for quartz crucible production and processing

Abstract

The invention discloses a repair device for quartz crucible production and processing, and relates to the technical field of quartz crucible grinding and processing, comprising: a processing frame, in which a driving motor is arranged, and two processing frames are symmetrically arranged, and extension frames are fixedly arranged on opposite sides of the two processing frames, and a reducer is arranged in the extension frame; a longitudinal roller group is arranged vertically downward below the extension frame, and a transverse roller group is arranged on the front end surfaces of the two processing frames, and a friction belt is arranged between the transverse roller group on one processing frame and the longitudinal roller group on the other processing frame; a plurality of balancing rollers for clamping the crucible are arranged at positions near the lower end surfaces of the inner sides of the two processing frames, and a supporting assembly is arranged between the two processing frames, and cooperated by the balancing rollers. The invention ensures that as many positions as possible on the crucible surface are synchronously polished, and the pressure uniformity is maintained, and the remaining part can be polished separately to ensure good uniformity of the crucible surface after polishing.

Description

Technical Field

[0001] The invention relates to the technical field of quartz crucible grinding and processing, and in particular to a repairing device for producing and processing quartz crucibles. Background Art

[0002] Quartz crucible is a high-purity, high-temperature resistant quartz glass product. It is a necessary container for pulling single crystal silicon and producing polycrystalline silicon ingots. It can be used at temperatures up to 1450°C and has good chemical stability and electrical insulation properties. The main raw material of quartz crucible is high-purity quartz sand, which is made by high temperature arc method. The arc method produces quartz crucible using graphite molds in a closed vacuum environment at a temperature of 1700°C.

[0003] In the process of producing quartz crucibles by arc melting, quartz sand is put into a rotating mold. Under the action of centrifugal force, the quartz sand adheres to the inner wall of the mold to form a quartz crucible blank. The quartz sand is melted by the arc heat generated by the short circuit of the electrode. After melting for a period of time, it is cooled and demolded to form a crucible. The outer diameter of the crucible out of the mold is determined by the thickness of the material layer, the melting current and the melting time. Due to the particularity of the above production process, products with an outer diameter greater than the standard 2mm-3mm will appear in the production process. These products do not meet the requirements and cannot be used normally, and the outer diameter needs to be repaired.

[0004] However, due to the material and shape of the quartz crucible, it is difficult to ensure uniformity during the grinding process. When the quartz crucible works at high temperature, the thinner wall area will transfer heat faster, which may lead to local overheating and accumulation of thermal stress. If these stresses exceed the bearing limit of the material, it may cause the crucible to crack or deform.

[0005] Therefore, it is necessary to provide a repair device for quartz crucible production and processing to solve the problems raised in the above background technology. Summary of the invention

[0006] To achieve the above object, the present invention provides the following technical solution: a repair device for quartz crucible production and processing, comprising:

[0007] A processing frame, in which a driving motor is arranged, the processing frames are symmetrically arranged in two, and an extension frame is fixedly arranged on the opposite side of the two processing frames, a reducer is arranged in the extension frame, and the output end of the driving motor extends from the upper end surface of the processing frame and is connected to the reducer through a belt;

[0008] A longitudinal roller group is vertically arranged below the extension frame and connected to a reducer in the extension frame. In addition, a transverse roller group is arranged on the front end surfaces of the two processing frames, and a friction belt is arranged between the transverse roller group on one processing frame and the longitudinal roller group on the other processing frame.

[0009] A plurality of balancing rollers for clamping the crucible are arranged on the inner sides of the two processing racks near the lower end surfaces, and a supporting assembly is arranged between the two processing racks. The crucible is sleeved on the supporting assembly and cooperated with by the balancing rollers.

[0010] Further, preferably, the longitudinal roller set comprises:

[0011] The fixed support plates are symmetrically arranged in two groups, and a main longitudinal roller shaft and a secondary longitudinal roller shaft are vertically arranged between the two fixed support plates. The upper fixed support plate is fixedly arranged on the extension frame, and the lower fixed support plate is fixedly arranged on the processing frame. Adjustment slots are provided on the two fixed support plates.

[0012] The rotating shaft passes through the fixed support plate and connects the secondary longitudinal roller shaft and the reducer, and the secondary longitudinal roller shaft is controlled by the reducer to rotate.

[0013] Further, as a preference, a sliding seat and an adjusting screw are arranged in the adjusting groove, the position of the sliding seat in the adjusting groove is slidingly adjusted by controlling the adjusting screw, and the main longitudinal roller shaft is rotatably arranged between the two sliding seats.

[0014] Further, preferably, the main longitudinal roller shaft and the secondary longitudinal roller shaft are provided with oblique guide grooves, the oblique guide grooves are used to place and limit the friction belt, and there are multiple groups of oblique guide grooves on the main longitudinal roller shaft and the secondary longitudinal roller shaft for adjusting the position of the friction belt.

[0015] Further, preferably, the transverse roller group includes a sliding plate frame vertically slidably arranged on the processing frame, and a slide rail is arranged between the sliding plate frame and the processing frame, the sliding plate frame slides on the slide rail, an adjusting motor and an auxiliary motor are fixedly arranged on the sliding plate frame, and a secondary transverse roller shaft and a main transverse roller shaft are respectively arranged at the output ends of the adjusting motor and the auxiliary motor.

[0016] Further, preferably, the axes of the main transverse roller shaft and the secondary transverse roller shaft are kept horizontal and arranged parallel to each other, but the axes of the main transverse roller shaft and the secondary transverse roller shaft are not in the same vertical plane, and a gap is left between the main transverse roller shaft and the secondary transverse roller shaft for accommodating the friction belt.

[0017] Further, preferably, the support assembly comprises:

[0018] A rotating base, on which a main shaft is rotatably arranged, an adapter is arranged between the main shaft and the rotating base, and a supporting wheel set is fixedly arranged on the upper end of the main shaft;

[0019] A fixed plate, fixedly sleeved on the main shaft, a movable plate slidably sleeved on the main shaft, the movable plate is located below the fixed plate, and both the fixed plate and the movable plate are located between the supporting wheel set and the rotating base;

[0020] The adjusting rods are arranged in plurality, and the lower ends of the adjusting rods extend into the adapter and are connected to the pulling elements provided in the adapter. The adjusting rods penetrate through and are fixedly connected to the movable plate.

[0021] Further, as a preference, two side deployment rod frames are symmetrically arranged between the fixed plate and the movable plate via a hinge plate.

[0022] Further, preferably, the supporting wheel group includes a spoke frame and a circumferential wheel, the spoke frame is provided with a plurality of slots on its circumference, and the circumferential wheel is arranged circumferentially in a manner that the axis is tangent to the circumference of the spoke frame, and the circumferential wheel is rotatably disposed in the slots.

[0023] Compared with the prior art, the present invention provides a repair device for quartz crucible production and processing, which has the following beneficial effects:

[0024] In the present invention, the crucible is integrally sleeved with the support assembly, and the outer wall of the crucible is abutted by a balancing roller to stably clamp the crucible together, and the friction belts are staggered and driven and fixed by a transverse roller group and a longitudinal roller group. The friction belts fit the outer wall of the crucible and part of the arc-shaped bottom surface. The outer surface of the crucible is polished by controlling the operation of the friction belts and driving the crucible to rotate by the support assembly. The friction belts are arranged in two, and the positions of the two friction belts are adjusted so that the two friction belts cover as many rotating generatrixes as possible while covering the rotating generatrix of the crucible without crossing, thereby ensuring that as many positions on the crucible surface as possible are polished synchronously and the pressure uniformity is maintained. The remaining part can be polished separately to ensure that the surface of the crucible after polishing has good uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the processing frame in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the longitudinal roller group and the transverse roller group in the present invention;

[0029] Figure 4 Schematic diagram of the distribution of the friction belt in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the support assembly in the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the supporting wheel set in the present invention;

[0032] In the figure: 1. processing frame; 2. extension frame; 3. driving motor; 4. longitudinal roller group; 41. fixed support plate; 42. rotating shaft; 43. secondary longitudinal roller shaft; 44. sliding seat; 45. adjusting screw; 46. main longitudinal roller shaft; 5. transverse roller group; 51. sliding plate frame; 52. adjusting motor; 53. auxiliary motor; 54. secondary transverse roller shaft; 55. main transverse roller shaft; 56. slide rail; 6. balancing roller; 7. crucible; 8. supporting assembly; 81. rotating base; 82. main shaft; 83. adjusting pull rod; 84. fixed plate; 85. movable plate; 86. side spreader rod frame; 87. supporting wheel group; 871. spoke plate frame; 872. circumferential wheel; 9. friction belt. DETAILED DESCRIPTION

[0033] See also Figure 1-Figure 6 In an embodiment of the present application, a repair device for producing and processing a quartz crucible includes:

[0034] A processing frame 1, in which a driving motor 3 is arranged, the processing frames 1 are symmetrically arranged in two, and an extension frame 2 is fixedly arranged on opposite sides of the two processing frames 1, a reducer is arranged in the extension frame 2, and the output end of the driving motor 3 extends from the upper end surface of the processing frame 1 and is connected to the reducer through a belt;

[0035] A longitudinal roller group 4 is vertically arranged below the extension frame 2, and the longitudinal roller group 4 is connected to the reducer in the extension frame 2. In addition, a transverse roller group 5 is arranged on the front end surface of the two processing frames 1, and a friction belt 9 is arranged between the transverse roller group 5 on one processing frame 1 and the longitudinal roller group 4 on the other processing frame 1;

[0036] A plurality of balancing rollers 6 for clamping the crucible 7 are arranged on the inner side of the two processing frames 1 near the lower end surface, and a supporting assembly 8 is arranged between the two processing frames 1 . The crucible 7 is sleeved on the supporting assembly 8 and cooperated with the balancing rollers 6 .

[0037] It needs to be explained that the crucible 7 is integrally sleeved on the support assembly 8, and the outer wall of the crucible 7 is abutted by the balancing roller 6 to stably clamp the crucible 7 together, and the friction belts 9 are staggered and driven and fixed by the transverse roller group 5 and the longitudinal roller group 4. The friction belts 9 fit the outer wall of the crucible 7 and part of the arc-shaped bottom surface. The operation of the friction belts 9 is controlled, and the support assembly 8 drives the crucible 7 to rotate, so as to grind the outer surface of the crucible 7. Moreover, two friction belts 9 are arranged. By adjusting the positions of the two friction belts 9, the two friction belts 9 can cover as many rotating generatrixes as possible while covering the rotating generatrix of the crucible 7 without crossing, thereby ensuring that as many positions on the surface of the crucible 7 as possible are grinded synchronously and the pressure uniformity is maintained. The remaining part can be grinded separately to ensure that the surface of the crucible 7 has good uniformity after grinding.

[0038] In this embodiment, the longitudinal roller set 4 includes:

[0039] The fixed support plates 41 are symmetrically arranged in two groups, and a main longitudinal roller shaft 46 and a secondary longitudinal roller shaft 43 are vertically arranged between the two fixed support plates 41. The upper fixed support plate 41 is fixedly arranged on the extension frame 2, and the lower fixed support plate 41 is fixedly arranged on the processing frame 1. Adjustment slots are provided on the two fixed support plates 41.

[0040] The rotating shaft 42 passes through the fixed support plate 41 and connects the secondary longitudinal roller shaft 43 and the reducer, and the secondary longitudinal roller shaft 43 is controlled by the reducer to rotate.

[0041] As a preferred embodiment, a sliding seat 44 and an adjusting screw 45 are arranged in the adjusting groove, and the position of the sliding seat 44 in the adjusting groove is controlled by the adjusting screw 45 for sliding adjustment, and the main longitudinal roller shaft 46 is rotatably set between the two sliding seats 44, and the distance between the main longitudinal roller shaft 46 and the secondary longitudinal roller shaft 43 is slidably adjusted by the sliding seat 44, so that the friction belt 9 fits the surface of the secondary longitudinal roller shaft 43, and ensures that there is sufficient friction between the friction belt 9 and the surface of the secondary longitudinal roller shaft 43, so as to assist in driving the friction belt 9 to operate and grind the outer surface of the crucible 7.

[0042] As a preferred embodiment, oblique guide grooves are provided on the main longitudinal roller shaft 46 and the secondary longitudinal roller shaft 43, and the oblique guide grooves are used to place and limit the friction belt 9. In addition, multiple groups of oblique guide grooves are provided on the main longitudinal roller shaft 46 and the secondary longitudinal roller shaft 43 for adjusting the position of the friction belt 9. The friction belt 9 is guaranteed to have a certain width and bending ability so as to fit the surface of the crucible 7.

[0043] In this embodiment, the transverse roller group 5 includes a sliding plate frame 51 vertically slidably arranged on the processing frame 1, and a slide rail 56 is arranged between the sliding plate frame 51 and the processing frame 1. The sliding plate frame 51 slides on the slide rail 56 and cooperates with the adjustment friction belt 9 to fit the surface of the crucible 7. An adjusting motor 52 and an auxiliary motor 53 are fixedly arranged on the sliding plate frame 51, and the output ends of the adjusting motor 52 and the auxiliary motor 53 are respectively provided with a secondary transverse roller shaft 54 ​​and a main transverse roller shaft 55.

[0044] As a preferred embodiment, the axes of the main transverse roller shaft 55 and the secondary transverse roller shaft 54 ​​are kept horizontal and arranged parallel to each other, but the axes of the main transverse roller shaft 55 and the secondary transverse roller shaft 54 ​​are not in the same vertical plane, and a gap is left between the main transverse roller shaft 55 and the secondary transverse roller shaft 54 ​​for accommodating the friction belt 9. The friction belt 9 is driven by the main transverse roller shaft 55 and the secondary transverse roller shaft 54, and the friction belt 9 is horizontal at this position, corresponding to pulling the friction belt 9 to fit the arc-shaped bottom end of the crucible 7, and correspondingly the friction belt 9 is vertical at the position of the longitudinal roller group 4, correspondingly pulling the friction belt 9 to fit the side wall of the crucible 7, and in addition, the friction belt 9 is twisted between the transverse roller group 5 and the longitudinal roller group 4, so that the friction belt 9 can fit the transition position between the side wall and the bottom surface of the crucible 7.

[0045] In this embodiment, the support assembly 8 includes:

[0046] A rotating base 81 on which a main shaft 82 is rotatably disposed, an adapter is disposed between the main shaft 82 and the rotating base 81, and a supporting wheel set 87 is fixedly disposed on the upper end of the main shaft 82;

[0047] A fixed plate 84 is fixedly sleeved on the main shaft 82, and a movable plate 85 is slidably sleeved on the main shaft 82. The movable plate 85 is located below the fixed plate 84, and both the fixed plate 84 and the movable plate 85 are located between the supporting wheel set 87 and the rotating base 81;

[0048] The adjusting rods 83 are arranged in plurality, and the lower ends of the adjusting rods 83 extend into the adapter and are connected to the pulling elements provided in the adapter. The adjusting rods 83 penetrate through and are fixedly connected to the movable plate 85 .

[0049] As a preferred embodiment, two side spreader rod frames 86 are symmetrically arranged between the fixed plate 84 and the movable plate 85 through a hinged plate. The pull rod 83 is adjusted to pull the movable plate 85 to slide on the main shaft 82, close to or away from the fixed plate 84, and the side spreader rod frames 86 are correspondingly adjusted to extend or retract in a deflected manner. Under the premise that the support wheel group 87 contacts the inner wall of the crucible 7, and the crucible 7 is subjected to unbalanced external forces during the grinding process, the support wheel group 87 circumferentially abuts against the inner bottom surface of the crucible 7, the side spreader rod frames 86 abut against the inner wall of the crucible 7, and the balancing roller 6 contacts the outer wall of the crucible 7 near the port position, which together assist in maintaining the stability of the crucible 7.

[0050] As a preferred embodiment, the support wheel group 87 includes a spoke frame 871 and a circumferential wheel 872, the spoke frame 871 is provided with a plurality of slots on its circumference, and the circumferential wheel 872 is arranged circumferentially with its axis tangent to the spoke frame 871 in the circumferential direction, and the circumferential wheel 872 is rotatably set in the slot; specifically, when the crucible 7 is sleeved, the circumferential wheel 872 rolls to assist the crucible 7 in sleeved, and when the support wheel group 87 gradually penetrates into the crucible 7 and approaches the arc surface, the support wheel group 87 will match the corresponding position in the crucible 7, and the circumferential wheel 872 fits the inner surface of the crucible 7 and provides a higher friction force along the circumferential direction, so that the crucible 7 can rotate with the main shaft 82.

[0051] In specific implementation, the crucible 7 is integrally sleeved on the support assembly 8, and the outer wall of the crucible 7 is abutted by the balancing roller 6 to stably clamp the crucible 7 together, and the friction belts 9 are staggered and driven and fixed by the transverse roller group 5 and the longitudinal roller group 4. The friction belts 9 fit the outer wall of the crucible 7 and part of the arc-shaped bottom surface. The operation of the friction belts 9 is controlled, and the support assembly 8 drives the crucible 7 to rotate, so as to grind the outer surface of the crucible 7. In addition, two friction belts 9 are arranged. By adjusting the positions of the two friction belts 9, the two friction belts 9 can cover as many rotating generatrixes as possible while covering the rotating generatrix of the crucible 7 without crossing, thereby ensuring that as many positions on the surface of the crucible 7 as possible are synchronously grinded and the pressure uniformity is maintained. The remaining part can be grinded separately to ensure that the surface of the crucible 7 has good uniformity after grinding.

[0052] What has been described above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A repair device for quartz crucible production and processing, characterized in that: include: A processing frame (1) having a driving motor (3) disposed therein, wherein the processing frames (1) are symmetrically arranged in two, and an extension frame (2) is fixedly disposed on opposite sides of the two processing frames (1), a reducer is disposed in the extension frame (2), and an output end of the driving motor (3) extends out from an upper end surface of the processing frame (1) and is connected to the reducer via a belt; A longitudinal roller group (4) is vertically arranged below the extension frame (2), and the longitudinal roller group (4) is connected to a reducer in the extension frame (2). In addition, a transverse roller group (5) is arranged on the front end surface of each of the two processing frames (1), and a friction belt (9) is arranged between the transverse roller group (5) on one processing frame (1) and the longitudinal roller group (4) on the other processing frame (1); A plurality of balancing rollers (6) for clamping the crucible (7) are arranged on the inner sides of the two processing racks (1) near the lower end surfaces, and a support assembly (8) is arranged between the two processing racks (1). The crucible (7) is sleeved with the support assembly (8) and cooperates with the balancing rollers (6); The longitudinal roller set (4) comprises: The fixed support plates (41) are symmetrically arranged in two groups, and a main longitudinal roller shaft (46) and a secondary longitudinal roller shaft (43) are vertically arranged between the two fixed support plates (41). The upper fixed support plate (41) is fixedly arranged on the extension frame (2), and the lower fixed support plate (41) is fixedly arranged on the processing frame (1). Both fixed support plates (41) are provided with adjustment slots. The rotating shaft (42) passes through the fixed support plate (41) and is connected to the secondary longitudinal roller shaft (43) and the reducer, and the secondary longitudinal roller shaft (43) is controlled by the reducer to rotate; A sliding seat (44) and an adjusting screw (45) are arranged in the adjusting groove, the position of the sliding seat (44) in the adjusting groove is controlled by the adjusting screw (45) to slide, and the main longitudinal roller shaft (46) is rotatably arranged between the two sliding seats (44); The main longitudinal roller shaft (46) and the secondary longitudinal roller shaft (43) are provided with oblique guide grooves, the oblique guide grooves being used to place and limit the friction belt (9), and a plurality of groups of the oblique guide grooves are provided on the main longitudinal roller shaft (46) and the secondary longitudinal roller shaft (43) for adjusting the position of the friction belt (9); The transverse roller group (5) comprises a sliding plate frame (51) vertically slidably arranged on the processing frame (1), and a slide rail (56) is arranged between the sliding plate frame (51) and the processing frame (1), the sliding plate frame (51) slides on the slide rail (56), an adjusting motor (52) and an auxiliary motor (53) are fixedly arranged on the sliding plate frame (51), and a secondary transverse roller shaft (54) and a main transverse roller shaft (55) are respectively arranged at the output ends of the adjusting motor (52) and the auxiliary motor (53); The axes of the main transverse roller shaft (55) and the secondary transverse roller shaft (54) are both kept horizontal and arranged parallel to each other, but the axes of the main transverse roller shaft (55) and the secondary transverse roller shaft (54) are not in the same vertical plane, and a gap is left between the main transverse roller shaft (55) and the secondary transverse roller shaft (54) for accommodating the friction belt (9).

2. A repair device for quartz crucible production and processing according to claim 1, characterized in that: The support assembly (8) comprises: A rotating base (81) on which a main shaft (82) is rotatably disposed, a conversion joint is disposed between the main shaft (82) and the rotating base (81), and a supporting wheel set (87) is fixedly disposed on the upper end of the main shaft (82); A fixed plate (84) is fixedly sleeved on the main shaft (82), and a movable plate (85) is slidably sleeved on the main shaft (82), the movable plate (85) is located below the fixed plate (84), and the fixed plate (84) and the movable plate (85) are both located between the supporting wheel group (87) and the rotating base (81); The adjusting pull rods (83) are arranged in plurality, and the lower ends of the adjusting pull rods (83) extend into the adapter and are connected to a pulling element provided in the adapter. The adjusting pull rods (83) penetrate through and are fixedly connected to the movable plate (85).

3. A repair device for quartz crucible production and processing according to claim 2, characterized in that: Two side extension rod frames (86) are symmetrically arranged between the fixed plate (84) and the movable plate (85) via a hinge plate.

4. The repair device for producing and processing a quartz crucible according to claim 2, characterized in that: The supporting wheel assembly (87) comprises a spoke frame (871) and a circumferential wheel (872); the spoke frame (871) is provided with a plurality of slots on its circumference; the circumferential wheel (872) is arranged circumferentially in a manner such that its axis is tangent to the circumference of the spoke frame (871); and the circumferential wheel (872) is rotatably disposed in the slots.

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