A quartz crucible demolding auxiliary device

Abstract

The utility model discloses a quartz crucible demoulding auxiliary device belongs to quartz crucible demoulding technical field, and its technical scheme main points include base, the top fixedly connected with support frame of base, the inside of support frame is equipped with the casing, the inside fixedly connected with mould of casing, the inside of mould is equipped with crucible main part, the outside of casing is equipped with auxiliary assembly, can solve the mould of quartz crucible demoulding auxiliary device of existing, usually fixed in single angle, for the subsequent demoulding operation, because its angle is fixed, and hammering force is easy to concentrate in the non -critical region of casing, cannot accurate effect at the gap of close -fit, thereby lead to demoulding resistance is bigger, and the traditional demoulding structure adopts the mode of ejecting, and its ejection structure lacks the lateral fixed limit of crucible, and the ejection process crucible is easy to tilt because of the unbalance of force, leads to the edge of crucible and the inner wall of mould collision, and causes the problem of the problem such as collapse edge, surface scratch and so on.

Description

Technical Field

[0001] This utility model relates to the field of quartz crucible demolding technology, and in particular to an auxiliary device for demolding quartz crucibles. Background Technology

[0002] Quartz crucibles, as the core containers for pulling single-crystal silicon, are indispensable in high-tech fields such as photovoltaics and semiconductors due to their excellent properties such as high temperature resistance and strong chemical stability. In the production process of quartz crucibles, after the casting is completed, the crucible blank needs to be separated from the forming mold, which is the demolding process. The efficiency and standardization of this process directly affect the yield and surface quality of quartz crucibles.

[0003] The current demolding method involves manually striking the rotating mold to loosen the loose sand between the mold and the quartz crucible under the action of vibration and gravity, which then gradually flows out, and the quartz crucible gradually comes out of the mold. The striking time is relatively long, and the temperature at the manual striking site is high, resulting in a poor working environment for personnel. The existing patent (publication number: CN219276187U) discloses a quartz crucible demolding device. It utilizes a clamping component to hold and fix the quartz crucible mold, and a vibrating component to vibrate and strike the outer wall of the mold, thus replacing the manual hammering process. Furthermore, the vibrating component can move along the clamping component, increasing the area of ​​the vibrating component acting on the surface of the quartz crucible mold and improving the separation effect of the hammering vibration. The clamping component uses a connection between claws and a chuck to hold and fix the quartz crucible mold. Simultaneously, the claws are movably connected to the chuck, allowing them to hold and fix quartz crucible molds of various sizes. A lifting component is provided on one side of the clamping component to support the separated quartz crucible, replacing the manual removal of the quartz crucible from the mold.

[0004] To address the aforementioned issues, existing patents have provided solutions. However, the molds in existing quartz crucible demolding aids are typically fixed at a single angle. For subsequent demolding operations, due to the fixed angle, the hammering force tends to concentrate on non-critical areas of the shell and cannot be precisely applied to tightly fitting gaps, resulting in greater demolding resistance. Moreover, traditional demolding structures often employ an ejection method, which lacks lateral fixing and limiting of the crucible. During ejection, the crucible is prone to tilting due to force imbalance, causing the crucible edge to collide with the inner wall of the mold, leading to defects such as edge chipping and surface scratches.

[0005] To address this, an auxiliary device for demolding quartz crucibles is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a quartz crucible demolding aid device, which can solve the problem that the mold of the existing quartz crucible demolding aid device is usually fixed at a single angle. For subsequent demolding operations, because the angle is fixed, the hammering force is easily concentrated in the non-critical area of ​​the shell and cannot be accurately applied to the tightly fitting gap, resulting in greater demolding resistance. Moreover, traditional demolding structures mostly adopt the ejection method, which lacks lateral fixing and limiting of the crucible. During the ejection process, the crucible is prone to tilting due to force imbalance, causing the crucible edge to collide with the inner wall of the mold, resulting in defects such as edge chipping and surface scratches.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quartz crucible demolding auxiliary device, comprising a base, a support frame fixedly connected to the top of the base, a shell provided on the inner side of the support frame, a mold fixedly connected inside the shell, a crucible body provided inside the mold, an auxiliary component provided on the outer side of the shell, and a demolding component provided at the bottom of the shell. The auxiliary component includes a connecting sleeve rotatably connected to the outer side of the shell, a drive motor fixedly connected to the outer side of the connecting sleeve, a transmission gear fixedly connected to the output end of the drive motor, a rotating disk meshing with the outer side of the transmission gear, the inner side of the rotating disk fixedly connected to the outer side of the shell, a limiting ring fixedly connected inside the connecting sleeve, the limiting ring rotatably connected to the rotating disk, a control motor fixedly connected to the outer side of the support frame, and a rotating shaft mounted on the output end of the control motor via a transmission wheel and a transmission belt, the rotating shaft being fixedly connected to the connecting sleeve.

[0008] Preferably, the demolding assembly includes a push rod slidably connected to the bottom of the housing, the top of the push rod penetrating the interior of the mold and the outer side of the push rod slidably connected to the mold, and a push chuck fixedly connected to the bottom of the push rod.

[0009] Preferably, a compression spring is sleeved on the outer side of the push rod, and the compression spring is located between the push chuck and the housing.

[0010] Preferably, a bracket is fixedly connected to the top of the base, an electric push rod is fixedly connected to the top of the bracket, a push block is fixedly connected to the output end of the electric push rod, and the side of the push block away from the electric push rod engages with a push chuck.

[0011] Preferably, a cylinder is fixedly connected to the outer side of the support frame, and air supply pipes are connected to both sides of the cylinder. A telescopic sleeve is fixedly connected to the inner side of the support frame.

[0012] Preferably, a piston rod is slidably connected to the inner side of the telescopic sleeve, a return spring is sleeved on the outer side of the piston rod, and a rubber hammer is fixedly connected to the outer side of the piston rod.

[0013] Preferably, a servo motor is fixedly connected to the top of the base, a lead screw is fixedly connected to the output end of the servo motor, a support base is fixedly connected to the top of the base, and the inner side of the support base is rotatably connected to the lead screw.

[0014] Preferably, a movable frame is threadedly connected to the outer side of the lead screw, and a clamping sleeve is fixedly connected to the inner side of the movable frame.

[0015] Preferably, a sealing sleeve is provided at the connection between the housing and the top rod, and the sealing sleeve is made of rubber.

[0016] Preferably, a limiting slide rail is fixedly connected to the top of the base, and the inner side of the limiting slide rail is slidably connected to the movable frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This application uses an auxiliary component to rotate the quartz crucible and mold to a suitable demolding angle to assist subsequent mechanical hammering and pushing / pulling operations, improving the smoothness of subsequent demolding actions. This component can help the subsequent mechanical hammering to be evenly applied to the key stress areas of the shell. At the same time, the ejector rod and clamp of the demolding component can be accurately aligned with the stress points of the crucible, solving the problems of incomplete demolding of the crucible and cracks caused by local overload in traditional demolding devices. 2. This application achieves a smooth demolding effect by using a demolding component that allows the quartz crucible to be smoothly removed from the mold and reduces damage to the crucible surface, thereby improving the yield of quartz crucibles and the stability of the demolding operation. Compared with traditional demolding methods, this component can achieve a stable demolding function for quartz crucibles, solving the problems of crucible chipping, surface scratches, crucible falling off during manual removal, and high product loss rate caused by traditional demolding methods. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of a quartz crucible demolding auxiliary device according to the present invention; Figure 2 This is a schematic diagram of the structure of the base of this utility model; Figure 3 This is a schematic diagram of the structure of the auxiliary component of this utility model; Figure 4 This is a schematic diagram of the demolding assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the mobile frame of this utility model; Figure 6 This is a schematic diagram of the structure of the telescopic sleeve of this utility model; Figure 7 This is a cross-sectional view of the shell of this utility model.

[0019] In the diagram, 1. Base; 2. Support frame; 3. Shell; 4. Mold; 5. Crucible body; 6. Auxiliary components; 601. Connecting sleeve; 602. Drive motor; 603. Transmission gear; 604. Rotating wheel; 605. Limiting ring; 606. Control motor; 607. Rotating shaft; 7. Demolding assembly; 701. Push rod; 702. Push chuck; 703. Compression spring; 704. Bracket; 705. Electric push rod; 706. Push block; 8. Cylinder; 9. Gas pipe; 10. Telescopic sleeve; 11. Piston rod; 12. Rubber hammer; 13. Servo motor; 14. Lead screw; 15. Support base; 16. Moving frame; 17. Chute; 18. Sealing sleeve; 19. Limiting slide rail. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-7 The present invention provides the following technical solution: A quartz crucible demolding aid includes a base 1, a support frame 2 fixedly connected to the top of the base 1, a housing 3 provided inside the support frame 2, a mold 4 fixedly connected inside the housing 3, a crucible body 5 provided inside the mold 4, an auxiliary component 6 provided outside the housing 3, and a demolding component 7 provided at the bottom of the housing 3. The auxiliary component 6 includes a connecting sleeve 601 rotatably connected to the outside of the housing 3, a drive motor 602 fixedly connected to the outside of the connecting sleeve 601, a transmission gear 603 fixedly connected to the output end of the drive motor 602, a rotating disk 604 meshing with the outside of the transmission gear 603, the inside of the rotating disk 604 fixedly connected to the outside of the housing 3, a limiting ring 605 fixedly connected inside the connecting sleeve 601, the limiting ring 605 rotatably connected to the rotating disk 604, a control motor 606 fixedly connected to the outside of the support frame 2, and a rotating shaft 607 mounted on the output end of the control motor 606 via a transmission wheel and a transmission belt, the rotating shaft 607 being fixedly connected to the connecting sleeve 601.

[0022] In this embodiment: By activating the control motor 606 on the outside of the support frame 2, the control motor 606 drives the rotating shaft 607 to rotate through the transmission action of the transmission wheel and transmission belt. The rotating shaft 607 is fixedly connected to the connecting sleeve 601, thereby driving the connecting sleeve 601 and the housing 3 on the inner side containing the mold 4 to rotate synchronously until the housing 3 is adjusted to a suitable angle for subsequent hammering and pushing, providing a precise adaptation basis for the subsequent demolding action. Then, the hammering structure on the outside of the support frame 2 is activated, causing it to collide with the surface of the housing 3. The vibration force generated by the collision loosens the loose sand between the mold 4 and the crucible body 5. During the hammering process, the drive motor 602 on the outside of the connecting sleeve 601 is started simultaneously. The drive motor 602 outputs power to drive the transmission gear 603 to rotate. The transmission gear 603 meshes with the rotating disk 604 on the outside of the housing 3, thereby driving the rotating disk 604 and the housing 3 to rotate slowly inside the connecting sleeve 601. The limiting ring 605 inside the connecting sleeve 601 restricts the rotation trajectory of the rotating disk 604 to prevent the housing 3 from rotating off-center, ensuring that the rubber hammer 12 can act evenly on all parts of the housing 3, so that the floating sand between the mold 4 and the crucible body 5 is completely loosened, improving the auxiliary demolding effect.

[0023] Specifically, such as Figure 4 As shown, the demolding assembly 7 includes a push rod 701 slidably connected to the bottom of the housing 3. The top of the push rod 701 penetrates the interior of the mold 4 and the outer side of the push rod 701 is slidably connected to the mold 4. A push chuck 702 is fixedly connected to the bottom of the push rod 701.

[0024] Specifically, such as Figure 4 As shown, a compression spring 703 is sleeved on the outer side of the push rod 701, and the compression spring 703 is located between the push chuck 702 and the housing 3.

[0025] Specifically, such as Figure 4 As shown, a bracket 704 is fixedly connected to the top of the base 1, an electric push rod 705 is fixedly connected to the top of the bracket 704, a push block 706 is fixedly connected to the output end of the electric push rod 705, and the side of the push block 706 away from the electric push rod 705 is engaged with the push chuck 702.

[0026] In this embodiment: by activating the electric push rod 705 on the top bracket 704 of the base 1, the output end of the electric push rod 705 extends and drives the push block 706 to move towards the push chuck 702 until the push block 706 engages with the push chuck 702. Then the electric push rod 705 continues to push the chuck 702 upward, and the push chuck 702 drives the bottom-connected push rod 701 to move upward synchronously. The top of the push rod 701 penetrates the mold 4 and applies a pushing force to the bottom of the crucible body 5. The compression spring 703 sleeved on the outside of the push rod 701 is compressed during the pushing process. The buffer force generated by the elastic deformation offsets part of the pushing force, avoiding excessive pushing force that could damage the crucible body 5, and smoothly removes the crucible body 5 from the inside of the mold 4.

[0027] Specifically, such as Figure 6 As shown, a cylinder 8 is fixedly connected to the outer side of the support frame 2, and air supply pipes 9 are connected to both sides of the cylinder 8. A telescopic sleeve 10 is fixedly connected to the inner side of the support frame 2.

[0028] Specifically, such as Figure 6 As shown, a piston rod 11 is slidably connected to the inner side of the telescopic sleeve 10, a return spring is sleeved on the outer side of the piston rod 11, and a rubber hammer 12 is fixedly connected to the outer side of the piston rod 11.

[0029] In this embodiment: by setting up a cylinder 8, a gas supply pipe 9, a telescopic sleeve 10, a piston rod 11, and a rubber hammer 12, when the quartz crucible is completed and it is necessary to loosen the mold 4 and the crucible body 5 with mechanical hammering, the cylinder 8 fixed on the outside of the support frame 2 is activated. When the cylinder 8 is running, compressed gas is supplied to the telescopic sleeve 10 fixed on the inside of the support frame 2 through the gas supply pipe 9 connected on both sides. The gas supply pipe 9 plays a role in stabilizing the gas transmission, ensuring that the gas enters the telescopic sleeve 10 evenly, and avoiding fluctuations in the subsequent hammering force due to unstable gas supply. The compressed gas forms a thrust in the telescopic sleeve 10, extending and retracting. The sleeve 10 provides a stable guide for the sliding of the piston rod 11, preventing the piston rod 11 from deviating and affecting the hammering accuracy. Finally, the piston rod 11 and the rubber hammer 12 are driven by gas thrust to move towards the housing 3, realizing the hammering action on the housing 3. After the hammering is completed, the gas is discharged through the one-way valve at the top of the telescopic sleeve 10. At the same time, since the telescopic sleeve 10 is equipped with a return spring, the return spring resets the piston rod 11. Through repeated cooperation, the rubber hammer 12 can continuously hammer the housing 3. The cylinder 8 stops supplying gas, ensuring that the floating sand between the mold 4 and the crucible body 5 is completely loosened, improving the auxiliary demolding effect.

[0030] Specifically, such as Figure 5 As shown, a servo motor 13 is fixedly connected to the top of the base 1, a lead screw 14 is fixedly connected to the output end of the servo motor 13, and a support base 15 is fixedly connected to the top of the base 1. The inner side of the support base 15 is rotatably connected to the lead screw 14.

[0031] Specifically, such as Figure 5 As shown, a movable frame 16 is threadedly connected to the outer side of the lead screw 14, and a clamping sleeve 17 is fixedly connected to the inner side of the movable frame 16.

[0032] In this embodiment: by setting up a servo motor 13, a lead screw 14, a support base 15, a moving frame 16, and a clamping sleeve 17, when the auxiliary demolding operation is completed and the crucible body 5 needs to be fixed by the clamping sleeve 17, the servo motor 13 fixed on the top of the base 1 is started. When the servo motor 13 is running, its output end drives the lead screw 14 to rotate synchronously. The servo motor 13 can precisely control the speed to ensure that the lead screw 14 rotates smoothly and avoids the subsequent movement of the moving frame 16 due to speed fluctuations. Then, while the lead screw 14 rotates, it drives the moving frame 16 and the inner clamping sleeve 17 to move towards the mold 4 until the clamping sleeve 17 extends into the mold 4 and is tightly clamped to the inner wall of the crucible body 5. The inner contour of the clamping sleeve 17 is adapted to the inner wall of the crucible body 5 and can fit tightly against the inner wall of the crucible, providing stable lateral fixation for the crucible body 5 and preventing the crucible from tilting due to force imbalance during the subsequent pushing process.

[0033] Specifically, such as Figure 7 As shown, a sealing sleeve 18 is fitted at the connection between the housing 3 and the top rod 701. The sealing sleeve 18 is made of rubber.

[0034] Specifically, such as Figure 2 , Figure 5 As shown, a limiting slide rail 19 is fixedly connected to the top of the base 1, and the inner side of the limiting slide rail 19 is slidably connected to the movable frame 16.

[0035] In this embodiment: By setting a sealing sleeve 18, during the operation of the demolding component 7, the sealing sleeve 18 tightly fits the gap between the housing 3 and the ejector rod 701. The sealing sleeve 18 can effectively prevent loose sand between the mold 4 and the crucible body 5, as well as dust and other impurities from the external environment, from entering the interior of the housing 3. This prevents impurities from accumulating in the fit gap between the housing 3 and the ejector rod 701, which could cause the ejector rod 701 to slide and get stuck or wear. This ensures that the ejector rod 701 always slides along a stable trajectory, ensuring smooth ejection operation. By setting a limiting slide rail 19, when the servo motor 13 drives the lead screw 14 to rotate and drives the moving frame 16 to move towards or away from the mold 4, the limiting slide rail 19 provides precise guidance for the moving frame 16. This restricts the moving frame 16 to move smoothly only along the slide rail direction, preventing the moving frame 16 from shifting left or right or rotating during movement. This ensures that the clamping cylinder 17 inside the moving frame 16 is always aligned with the center position of the crucible body 5, achieving precise engagement between the clamping cylinder 17 and the crucible body 5.

[0036] Working principle: During the use of this quartz crucible demolding auxiliary device, after the quartz crucible is made, the control motor 606 is started. The control motor 606 drives the rotating shaft 607 to rotate through the cooperation of the transmission wheel and the transmission belt. Since the rotating shaft 607 is fixedly connected to the connecting sleeve 601, it drives the connecting sleeve 601 and the shell 3 of the mold 4 to rotate synchronously to a suitable angle for demolding. Then, the cylinder 8 is started. The cylinder 8 delivers gas to the telescopic sleeve 10 fixed inside the support frame 2 through the gas supply pipes 9 connected on both sides. The gas pushes the piston rod 11, which is slidably connected to the inside of the telescopic sleeve 10, to move towards the shell 3. The rubber hammer 12 fixed on the outside of the piston rod 11 moves synchronously with it and moves with the shell. When the surface of body 3 collides, gas is discharged from the telescopic sleeve 10. The return spring inside the telescopic sleeve 10 drives the piston rod 11 and the rubber hammer 12 to return to their original positions. Through its cyclical action, the shell 3 is continuously hammered, thereby assisting in the initial separation between the mold 4 and the crucible body 5. During this hammering process, the drive motor 602 fixed on the outside of the connecting sleeve 601 is started simultaneously. The output end of the drive motor 602 passes through the connecting sleeve 601 and drives the transmission gear 603 to rotate. The transmission gear 603 meshes with the rotating disk 604 fixed on the outside of the shell 3, thereby driving the rotating disk 604 and the shell 3 to rotate inside the connecting sleeve 601. The limiting ring 60 fixed inside the connecting sleeve 601... 5. Limit the rotation trajectory of the rotating wheel 604 to ensure the smooth rotation of the shell 3, allowing the rubber hammer 12 to act on all parts of the shell 3, further improving the auxiliary demolding effect. After the auxiliary demolding operation is completed, the servo motor 13 fixed on the top of the base 1 is started. The output end of the servo motor 13 drives the lead screw 14 to rotate. The lead screw 14 is rotatably connected to the support seat 15 fixed on the top of the base 1, ensuring the stable rotation of the lead screw 14. The movable frame 16, which is threaded on the outside of the lead screw 14, slides along the limiting slide rail 19 fixed on the top of the base 1 towards the demolding side of the mold 4 until the clamping cylinder 17 fixed inside the movable frame 16 is engaged and fixed with the inner wall of the crucible body 5. At this time, the bracket 70 is started. 4. The electric push rod 705 at the top drives the push block 706 to move towards the push chuck 702 and engage with it, thereby pushing the chuck 702 to move. The push rod 701 moves synchronously with the push chuck 702 and pushes the crucible body 5. Its compression spring 703 plays a buffering role during the pushing process to avoid excessive pushing force damaging the crucible body 5. At the same time, the servo motor 13 rotates in the opposite direction, driving the lead screw 14 to rotate in the opposite direction, so that the moving frame 16 and the clamping cylinder 17 move synchronously away from the mold 4. The pulling of the crucible body 5 by the clamping cylinder 17 and the pushing of the crucible body 5 by the push rod 701 form a double cooperation, so that the crucible body 5 is smoothly removed from the mold 4.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quartz crucible demolding aid device, comprising a base (1), characterized in that: A support frame (2) is fixedly connected to the top of the base (1). A housing (3) is provided inside the support frame (2). A mold (4) is fixedly connected inside the housing (3). A crucible body (5) is provided inside the mold (4). An auxiliary component (6) is provided on the outside of the housing (3). A demolding component (7) is provided at the bottom of the housing (3). The auxiliary component (6) includes a connecting sleeve (601) rotatably connected to the outside of the housing (3). A drive motor (602) is fixedly connected to the outside of the connecting sleeve (601). The output end of the drive motor (602) is fixedly connected to... A transmission gear (603) is connected to a rotating disk (604) on its outer side. The inner side of the rotating disk (604) is fixedly connected to the outer side of the housing (3). A limit ring (605) is fixedly connected inside the connecting sleeve (601). The limit ring (605) is rotatably connected to the rotating disk (604). A control motor (606) is fixedly connected to the outer side of the support frame (2). A rotating shaft (607) is installed at the output end of the control motor (606) through a transmission wheel and a transmission belt. The rotating shaft (607) is fixedly connected to the connecting sleeve (601).

2. The quartz crucible demolding auxiliary device according to claim 1, characterized in that: The demolding assembly (7) includes a push rod (701) slidably connected to the bottom of the housing (3). The top of the push rod (701) penetrates the interior of the mold (4) and the outer side of the push rod (701) is slidably connected to the mold (4). A push chuck (702) is fixedly connected to the bottom of the push rod (701).

3. The quartz crucible demolding auxiliary device according to claim 2, characterized in that: A compression spring (703) is sleeved on the outside of the push rod (701), and the compression spring (703) is located between the push chuck (702) and the housing (3).

4. The quartz crucible demolding auxiliary device according to claim 2, characterized in that: A bracket (704) is fixedly connected to the top of the base (1), and an electric push rod (705) is fixedly connected to the top of the bracket (704). A push block (706) is fixedly connected to the output end of the electric push rod (705), and the side of the push block (706) away from the electric push rod (705) is engaged with the push chuck (702).

5. The quartz crucible demolding auxiliary device according to claim 1, characterized in that: A cylinder (8) is fixedly connected to the outside of the support frame (2), and air supply pipes (9) are connected to both sides of the cylinder (8). A telescopic sleeve (10) is fixedly connected to the inside of the support frame (2).

6. The quartz crucible demolding auxiliary device according to claim 5, characterized in that: A piston rod (11) is slidably connected to the inner side of the telescopic sleeve (10), a return spring is sleeved on the outer side of the piston rod (11), and a rubber hammer (12) is fixedly connected to the outer side of the piston rod (11).

7. The quartz crucible demolding auxiliary device according to claim 1, characterized in that: A servo motor (13) is fixedly connected to the top of the base (1), and a lead screw (14) is fixedly connected to the output end of the servo motor (13). A support seat (15) is fixedly connected to the top of the base (1), and the inner side of the support seat (15) is rotatably connected to the lead screw (14).

8. The quartz crucible demolding auxiliary device according to claim 7, characterized in that: The outer side of the lead screw (14) is threaded with a movable frame (16), and the inner side of the movable frame (16) is fixedly connected with a clamp (17).

9. The quartz crucible demolding auxiliary device according to claim 2, characterized in that: A sealing sleeve (18) is provided at the connection between the housing (3) and the top rod (701), and the sealing sleeve (18) is made of rubber.

10. The quartz crucible demolding auxiliary device according to claim 8, characterized in that: The top of the base (1) is fixedly connected to a limiting slide rail (19), and the inner side of the limiting slide rail (19) is slidably connected to the moving frame (16).

Images