Quartz crucible preparation device

Abstract

The utility model relates to the technical field of quartz crucible preparation, in particular to a quartz crucible preparation device which comprises a machine frame and an outer mold forming mechanism used for forming the outline of a crucible body, the machine frame comprises supporting legs, a rotating table is arranged at the tops of the supporting legs, and an eccentric mechanism for driving the rotating table to swing in a reciprocating mode is arranged on the lower portion of the rotating table. The head of the rotating table is provided with an inner mold forming mechanism, the inner mold forming mechanism comprises a driving assembly and a rotating machine head, the outer mold forming mechanism is arranged right below the inner mold forming mechanism in an opposite mode, a transfer cylinder containing liquid quartz is placed in the outer mold forming mechanism, and the tail of the rotating table is provided with a balance empennage. The inner mold forming mechanism and the outer mold forming mechanism are arranged oppositely, and a driving assembly and a rotating machine head of the inner mold forming mechanism can accurately control the movement and forming process of an inner mold. The inner and outer molds are accurately matched, so that the inner and outer walls of the quartz crucible can be uniformly stressed, the accurate forming of the outline of the crucible body is ensured, and the forming accuracy and quality of different types of quartz crucibles are realized.

Description

Technical Field

[0001] This utility model relates to the field of quartz crucible preparation technology, and in particular to a quartz crucible preparation device. Background Technology

[0002] During the preparation of quartz crucibles, liquid quartz is mostly formed by static molding or gravity molding. During the molding process, surface defects are generated due to uneven distribution of liquid quartz or uneven molding pressure. Crucible molding will produce defects such as cracks, pores, and depressions, and the inside of the crucible is densely porous.

[0003] Liquid quartz requires prolonged cooling during solidification, making efficient transfer during production impossible for batch molding and rapid cooling. Furthermore, the shapes of the inner and outer surfaces of the quartz crucible cannot be changed efficiently. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a quartz crucible preparation device that achieves precise shaping of the crucible body outline and improves the shaping accuracy and quality of quartz crucibles.

[0005] The technical problem to be solved by this utility model is achieved through the following technical solution: a quartz crucible preparation device, including a frame and an outer mold forming mechanism for forming the outer contour of the crucible body. The frame includes support legs, a rotating platform is provided at the top of the support legs, an eccentric mechanism is provided at the lower part of the rotating platform to drive the rotating platform to reciprocate, an inner mold forming mechanism is provided at the head of the rotating platform, the inner mold forming mechanism includes a drive assembly and a rotating head, the outer mold forming mechanism is positioned directly below the inner mold forming mechanism, a transfer cylinder containing liquid quartz is placed in the outer mold forming mechanism, and a balancing tail fin is provided at the tail of the rotating platform.

[0006] The inner mold forming mechanism and the outer mold forming mechanism are positioned opposite each other, and the drive components and rotating head of the inner mold forming mechanism can precisely control the movement of the inner mold and the forming process. The precise matching of the inner and outer molds ensures that the inner and outer walls of the quartz crucible are evenly stressed, guaranteeing the accurate forming of the crucible's outer contour and improving the forming accuracy and quality of the quartz crucible.

[0007] The rotary table drives the inner mold forming mechanism through an eccentric mechanism to oscillate back and forth, ensuring that the inner mold maintains a stable rotational state throughout the forming process.

[0008] The reciprocating oscillation of the rotary table and the continuous rotation of the inner mold forming mechanism enable the quartz crucible forming process to proceed continuously.

[0009] The balancing tail fin effectively balances the inertial force of the rotary table during its reciprocating oscillation, reducing the vibration and swaying of the rotary table and improving the stability of the molding process.

[0010] The drive components of the inner mold forming mechanism are adjusted according to the different specifications and shape requirements of the quartz crucible, while the outer mold forming mechanism rotates at a constant speed to make the outer wall of the quartz crucible fit tightly against the inner wall of the transfer cylinder.

[0011] As a further embodiment of this utility model, the drive assembly includes a rotary motor disposed on the top surface of the rotary table, the rotary motor shaft being perpendicular to the top surface of the rotary table, a drive pulley being disposed on the rotary motor shaft, and a driven pulley being disposed on the top of the rotary head, with a transmission belt tightly stretched between the drive pulley and the driven pulley.

[0012] The rotary motor shaft is perpendicular to the top surface of the rotary table, allowing the motor's power to be directly and efficiently transmitted to the rotary head. This ensures the rotary head receives stable and strong power. By changing the drive and driven pulleys of different sizes and adjusting the transmission ratio, the rotational speed of the rotary head can be altered. This adapts to the forming requirements of quartz crucibles of different specifications and shapes, improving the equipment's versatility and flexibility.

[0013] The rotary head also includes a drive shaft located below the driven pulley. A tapered punch is located at the end of the drive shaft, with its small end being a free end and forming a smooth arc shape. The smooth arc shape of the small end of the tapered punch reduces impact and vibration during the forming process. The tapered punch is independently mounted at the end of the drive shaft for easy maintenance and replacement.

[0014] As a further embodiment of this invention, the outer mold forming mechanism includes an outer mold cylinder. A vertically positioned forming motor is located at the bottom of the outer mold cylinder, with its shaft coaxial with the outer mold cylinder and its end face fixedly positioned to the bottom surface of the outer mold cylinder. The forming motor can continuously and stably drive the outer mold cylinder to rotate, enabling the outer wall forming process of the quartz crucible to proceed continuously. Continuous forming improves production efficiency and reduces downtime and waiting time during the forming process.

[0015] As a further embodiment of this invention, the eccentric mechanism includes an eccentric wheel disposed between two legs, a hinged main shaft between the two legs and the rotary table, and synchronously swinging arms at both ends of the hinged main shaft. A horizontal axis for the swing arms is disposed between the free ends of the two swing arms. A compression spring is disposed at the hinge point of the free ends of the two swing arms, with the other end of the compression spring hinged to the bottom end of the leg. An eccentric wheel is disposed at the midpoint of the horizontal axis for the swing arms. The eccentric wheel has a central hole and an eccentric hole, with the eccentric hole interference-fitted with the horizontal axis for the swing arms. A central rotating shaft is disposed within the central hole, and the eccentric wheel is disposed at the midpoint of the central rotating shaft. Support seats are disposed at both ends of the central rotating shaft, with a drive motor disposed on the support assembly side of one end. The drive motor shaft is fixedly disposed to one end of the central rotating shaft. By adjusting the position of the eccentric wheel and the eccentricity of the eccentric hole, the swing angle and swing amplitude of the swing arms can be precisely controlled. This allows the rotary table to reciprocate along a preset trajectory, thereby driving the rotary head to reciprocate up and down.

[0016] As a further embodiment of this utility model, the support base includes a base body with a mounting hole on its upper part. A mounting bearing is installed in the mounting hole, and a central rotating shaft is configured to cooperate with the mounting hole via the mounting bearing. With the mounting hole on the upper part of the base body and the mounting bearing inside, the central rotating shaft is stably mounted on the base body while ensuring rotation, thus enabling free rotation of the central rotating shaft.

[0017] As a further embodiment of this utility model, the rotary table includes a table body, an upper mounting plane, an arc surface tangent to the profile of the eccentric wheel flange at the bottom of the table body, a horizontal mounting shaft hole along the width direction at the head of the rotary table, and through holes coaxially arranged at the top of the two support legs. The hinged main shaft is sequentially installed through the mounting shaft hole and the through hole, and both ends of the hinged main shaft are hinged to the swing arm.

[0018] The curved surface at the bottom of the table is tangent to the profile of the eccentric wheel flange, allowing the rotary table to fit tightly with the eccentric wheel and ensuring stable and uniform rotation under its drive. A horizontal mounting shaft hole at the head of the rotary table allows for the insertion of a hinged spindle, effectively enabling smooth rotation of the rotary table.

[0019] As a further embodiment of this invention, both the rotary motor and the rotary head are perpendicular to the mounting plane. The oscillation of the rotary table drives the rotary motor and the rotary head to oscillate synchronously, causing the rotary head to reciprocate up and down into the outer mold cylinder. The synchronous oscillation of the rotary table and the rotary motor ensures a more precise fit between the movement trajectory of the rotary head and the outer mold cylinder during the forming process.

[0020] As a further embodiment of this invention, the balancing tail fin is a solid load-bearing component with a large and small end structure. The small end of the balancing tail fin is fixedly mounted to the mounting plane at the rear of the rotary table, while the large end of the balancing tail fin is suspended at the rear of the rotary table. As a solid load-bearing component, the balancing tail fin has a large mass. Its large end being suspended at the rear of the rotary table allows it to play a balancing role during the rotary table's swing, reducing swaying and vibration. This makes the rotary table more stable during swing, improving the operational stability of the equipment. It effectively absorbs and disperses the vibration generated during the rotary table's swing, reducing the transmission of vibration to other components and improving the overall stability of the equipment.

[0021] The beneficial effects of this utility model are as follows: This utility model provides a quartz crucible preparation device, including a frame and an outer mold forming mechanism for forming the outer contour of the crucible body. The frame includes support legs, a rotating platform is provided at the top of the support legs, an eccentric mechanism is provided at the bottom of the rotating platform to drive the rotating platform to swing back and forth, an inner mold forming mechanism is provided at the head of the rotating platform, the inner mold forming mechanism includes a drive assembly and a rotating head, the outer mold forming mechanism is positioned directly below the inner mold forming mechanism, a transfer cylinder containing liquid quartz is placed in the outer mold forming mechanism, and a balancing tail fin is provided at the tail of the rotating platform.

[0022] The inner mold forming mechanism and the outer mold forming mechanism are positioned opposite each other, and the drive components and rotating head of the inner mold forming mechanism can precisely control the movement of the inner mold and the forming process. The precise matching of the inner and outer molds ensures that the inner and outer walls of the quartz crucible are evenly stressed, guaranteeing the accurate forming of the crucible's outer contour and improving the forming accuracy and quality of the quartz crucible.

[0023] The rotary table drives the inner mold forming mechanism through an eccentric mechanism to oscillate back and forth, ensuring that the inner mold maintains a stable rotational state throughout the forming process.

[0024] The reciprocating oscillation of the rotary table and the continuous rotation of the inner mold forming mechanism enable the quartz crucible forming process to proceed continuously.

[0025] The balancing tail fin effectively balances the inertial force of the rotary table during its reciprocating oscillation, reducing the vibration and swaying of the rotary table and improving the stability of the molding process.

[0026] The drive components of the inner mold forming mechanism are adjusted according to the different specifications and shape requirements of the quartz crucible, while the outer mold forming mechanism rotates at a constant speed to make the outer wall of the quartz crucible fit tightly against the inner wall of the transfer cylinder. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the usage state of this utility model. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the usage state of this utility model. Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the usage state of this utility model. Figure 3 .

[0031] Wherein: 1-support leg, 2-support base, 201-central rotating shaft, 202-mounting hole, 203-drive motor.

[0032] 3-Eccentric mechanism, 301-Eccentric wheel, 4-Swing arm, 401-Swing arm horizontal axis, 5-Rotating table, 501-Balance tail fin, 502-Hinged main shaft, 503-Mounting plane, 504-Arc surface, 6-Drive assembly, 7-Rotating head, 701-Drive shaft, 702-Conical punch, 8-Transfer cylinder, 601-Drive pulley, 602-Transmission belt, 603-Driven pulley, 604-Rotary motor, 9-Outer mold forming mechanism, 901-Outer mold cylinder, 902-Mold forming motor. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] like Figures 1 to 4 As shown, a quartz crucible preparation apparatus includes a frame and an outer mold forming mechanism 9 for forming the outer contour of the crucible body. The frame includes legs 1, a rotating platform 5 is provided at the top of the legs, and an eccentric mechanism 3 is provided at the bottom of the rotating platform to drive the rotating platform to reciprocate. The eccentric mechanism includes an eccentric wheel 301 disposed between the two legs, a hinged main shaft 502 is provided between the two legs and the rotating platform, and swing arms 1 that swing synchronously are provided at both ends of the hinged main shaft. A swing arm horizontal shaft 401 is provided between the free ends of the two swing arms, and a compression spring 101 is provided at the hinge point of the free ends of the two swing arms. The other end of the compression spring is hinged to the bottom end of the legs.

[0037] An eccentric wheel is located at the midpoint of the horizontal axis of the swing arm. The eccentric wheel has a central hole and an eccentric hole. The eccentric hole is interference-fitted with the horizontal axis of the swing arm. During the swinging process, the swing arm reciprocates through the stretching and compression of the spring.

[0038] A central rotating shaft 201 is provided inside the central hole, and an eccentric wheel is located at the midpoint of the central rotating shaft. Support seats 2 are provided at both ends of the central rotating shaft. Each support seat includes a seat body, and a mounting hole 202 is provided on the upper part of the seat body. A mounting bearing is provided in the mounting hole, and the central rotating shaft is configured to cooperate with the mounting bearing in the mounting hole. A drive motor is provided on the support component side at one end, and the drive motor shaft is fixedly configured to one end of the central rotating shaft.

[0039] When in use, start the drive motor 203. The drive motor shaft rotates, which drives the central rotating shaft 201. The central rotating shaft rotates, which drives the eccentric wheel to rotate. The eccentric wheel rotates along the central hole, which drives the swing arm to swing. Together, they drive the eccentric wheel to rotate circumferentially.

[0040] The rotary table 5 includes a table body, an upper mounting plane 503, and a bottom arc surface 504 tangent to the profile of the eccentric wheel flange. The head of the rotary table has a horizontal mounting shaft hole along the width direction. The top of the two legs has a through hole coaxial with the mounting shaft hole. The hinged main shaft is sequentially installed through the mounting shaft hole and the through hole. Both ends of the hinged main shaft are hinged to the swing arm.

[0041] The eccentric wheel reciprocates in a circumferential rotation, and the arc surface of the rotary table is tangent to the surface of the eccentric wheel. The rotation of the eccentric wheel causes the rotary table to swing up and down along the hinged main shaft.

[0042] The head of the rotary table is equipped with an inner mold forming mechanism. The rotary table swings up and down, driving the inner mold forming mechanism to swing up and down synchronously.

[0043] The inner mold forming mechanism includes a drive assembly 6 and a rotating head 7. The drive assembly includes a rotary motor 604 disposed on the top surface of the rotary table. The rotary motor shaft is perpendicular to the top surface of the rotary table. A drive pulley 601 is provided on the rotary motor shaft. The rotating head includes a driven pulley 603 disposed on the top. A conveyor belt 602 is tightly strung between the drive pulley and the driven pulley.

[0044] The rotation of the rotary motor drives the rotary drive pulley 601 to rotate. The rotation of the drive pulley drives the driven pulley 603 to rotate via the transmission belt. The rotation of the driven pulley 603 drives the rotary head to rotate synchronously.

[0045] The rotating head 7 also includes a drive shaft 701 located below the driven pulley, and a tapered punch 702 is provided at the end of the drive shaft. The tapered punch rotates synchronously with the drive shaft.

[0046] During the preparation process, the conical punch is constantly rotating. The outer mold forming mechanism is positioned directly below the inner mold forming mechanism, and a transfer cylinder 8 containing liquid quartz is placed inside the outer mold forming mechanism. The transfer cylinder is located outside the preparation device. Liquid quartz is first injected into the transfer cylinder. During one rotation of the eccentric wheel, the conical punch extends into the transfer cylinder. The rotary motor and the rotary head are both perpendicular to the mounting plane. The oscillation of the rotary table drives the rotary motor and the rotary head to oscillate synchronously. The rotary head reciprocates up and down, punching into the outer mold cylinder 901.

[0047] The small end of the conical punch 702 is a free end, and the small end of the conical punch is a smooth arc shape. After contacting the liquid quartz, the conical punch 702 rotates at high speed to shape the inner surface of the quartz crucible. The conical punch can be replaced with punches of different shapes to achieve the forming of crucibles of different shapes.

[0048] The outer mold forming mechanism includes an outer mold cylinder 901, and a vertically arranged mold forming motor 902 is provided at the bottom of the outer mold cylinder. The mold forming motor shaft is coaxially arranged with the outer mold cylinder, and the end face of the mold forming motor shaft is fixedly arranged with the bottom surface of the outer mold cylinder.

[0049] When the molding motor 902 starts, it drives the outer mold cylinder to rotate at high speed. When the transfer cylinder is placed into the outer mold cylinder, it rotates synchronously with the outer mold cylinder, generating centrifugal force to throw out the air bubbles in the liquid quartz. The shape of the outside of the quartz crucible matches the shape of the inside of the outer mold cylinder.

[0050] When it is necessary to prepare quartz crucibles of different shapes, the shape of the outer mold cylinder and the stamping shape of the punch will be changed accordingly.

[0051] A balancing tail fin 501 is installed at the rear of the rotary table where the transfer cylinder is placed. The balancing tail fin is a solid load-bearing component with a large and small end structure. The small end of the balancing tail fin is fixed to the mounting plane at the rear of the rotary table, while the large end is suspended at the rear of the rotary table. During the rotation of the rotary table, this reduces swaying and vibration, and to a certain extent balances the forward tilt and sway of the preparation device. The entire preparation device operates smoothly.

[0052] 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.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A quartz crucible preparation apparatus, characterized in that, The machine includes a frame and an outer mold forming mechanism (9) for forming the outer contour of the crucible body. The frame includes a support leg (1), a rotating platform (5) is provided on the top of the support leg, an eccentric mechanism (3) is provided at the bottom of the rotating platform to drive the rotating platform to swing back and forth, an inner mold forming mechanism is provided at the head of the rotating platform, the inner mold forming mechanism includes a drive assembly (6) and a rotating head (7), the outer mold forming mechanism is located directly below the inner mold forming mechanism, a transfer cylinder (8) containing liquid quartz is placed in the outer mold forming mechanism, and a balancing tail fin (501) is provided at the tail of the rotating platform.

2. The quartz crucible preparation apparatus according to claim 1, characterized in that, The drive assembly (6) includes a rotary motor (604) disposed on the top surface of the rotary table. The rotary motor shaft is perpendicular to the top surface of the rotary table. The rotary motor shaft is provided with a drive pulley (601). The rotary head includes a driven pulley (603) disposed on the top. A transmission belt (602) is tightly stretched between the drive pulley and the driven pulley. The rotating head (7) also includes a drive shaft (701) located below the driven pulley. The end of the drive shaft is provided with a conical punch (702). The small end of the conical punch is a free end and the small end of the conical punch is a smooth arc shape.

3. The quartz crucible preparation apparatus according to claim 1, characterized in that, The outer mold forming mechanism (9) includes an outer mold cylinder (901), and a vertically arranged mold forming motor (902) is provided at the bottom of the outer mold cylinder. The mold forming motor shaft is coaxially arranged with the outer mold cylinder, and the end face of the mold forming motor shaft is fixedly arranged with the bottom surface of the outer mold cylinder.

4. The quartz crucible preparation apparatus according to claim 3, characterized in that, The eccentric mechanism (3) includes an eccentric wheel (301) disposed between two legs, a hinged main shaft (502) between the two legs and the rotary table, swing arms (4) with synchronous swing at both ends of the hinged main shaft, a swing arm horizontal shaft (401) between the free ends of the two swing arms, a compression spring (101) at the hinge point of the free ends of the two swing arms, the other end of the compression spring is hinged to the bottom end of the legs, an eccentric wheel is disposed at the midpoint of the swing arm horizontal shaft, a central hole and an eccentric hole are disposed on the eccentric wheel, the eccentric hole is interference-fitted with the swing arm horizontal shaft, a central rotating shaft is disposed in the central hole, the eccentric wheel is disposed at the midpoint of the central rotating shaft, and support seats (2) are disposed at both ends of the central rotating shaft, a drive motor (203) is disposed on the support component side of one end, and the drive motor shaft is fixedly disposed at one end of the central rotating shaft (201).

5. The quartz crucible preparation apparatus according to claim 4, characterized in that, The support base (2) includes a base body, and the upper part of the base body is provided with a mounting hole (202). A mounting bearing is provided in the mounting hole, and the central rotating shaft is configured to cooperate with the mounting hole through the mounting bearing.

6. The quartz crucible preparation apparatus according to claim 4, characterized in that, The rotary table (5) includes a table body, an upper mounting plane (503) on the table body, an arc surface (504) tangent to the profile of the eccentric wheel flange on the bottom of the table body, a horizontal mounting shaft hole on the head of the rotary table along the width direction, and through holes coaxially arranged on the top of the two legs. The hinged main shaft (502) is sequentially arranged through the mounting shaft hole and the through hole, and the two ends of the hinged main shaft are hinged to the swing arm.

7. The quartz crucible preparation apparatus according to claim 2, characterized in that, Both the rotary motor and the rotary head (7) are set perpendicular to the mounting plane. The rotary table swings, causing the rotary motor and the rotary head to swing synchronously. The rotary head reciprocates up and down into the outer mold cylinder.

8. The quartz crucible preparation apparatus according to claim 1, characterized in that, The balance tail fin (501) is a solid load-bearing component with a large and small end structure. The small end of the balance tail fin is fixedly installed on the mounting plane at the rear of the rotary table, while the large end of the balance tail fin is suspended at the rear of the rotary table.

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