Square quartz crucible ejection demolding device

Abstract

The utility model discloses a square quartz crucible ejection demolding device which comprises a base, clamping mechanisms used for clamping a mold are arranged on the two sides of the base, a lifting main oil cylinder is installed in the middle of the base, the bottom end of a piston rod of the lifting main oil cylinder is connected with a lifting mechanism used for jacking the mold, and the lifting mechanism comprises a lifting plate. Jacking rods penetrating to the position above the base are arranged at the four corners of the lifting plate correspondingly. Compared with the prior art, the mold centering device has the advantages that accurate centering placement of a mold is ensured through the mold placement platform and the positioning edge on the base; stable and uniform jacking force is realized by utilizing the lifting main oil cylinder and the jacking rod, so that the crucible is effectively prevented from being damaged in the demolding process; and meanwhile, due to the adjustable mounting design of the clamping mechanism, the device can adapt to molds of different sizes, and the flexibility and applicability of demolding are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz ceramic crucible manufacturing, in particular to a quartz square crucible ejection and demoulding device. Background Art

[0002] Thin-walled large-size square quartz ceramic crucible for crystalline silicon smelting. In recent years, as environmentally friendly energy has been continuously valued and developed, solar energy has been widely valued by countries around the world as a green energy source and has been widely developed and utilized, which has led to a sharp increase in the use of polysilicon for solar energy conversion. This has promoted the rapid development of polysilicon production, and the corresponding large-size thin-walled square fused quartz ceramic crucible has also increased sharply. In the method of preparing quartz ceramic crucibles by injection congealing process, high-viscosity slurry needs to be poured into a stainless steel mold, and the product is solidified after high-temperature reaction. Due to the deformation of the mold caused by the pressure during the pouring process and the adhesion of the crucible product to the mold, the product is difficult to demold. During the demolding process of the product, the inner mold can be lifted with compressed air and ejected, but when the outer mold is demolded, due to the small crucible wall thickness, the design of the demolding device has a greater impact on the product qualification rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a quartz square crucible ejecting and demoulding device.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a quartz square crucible ejection and demolding device, comprising a base, both sides of the base are provided with clamping mechanisms for clamping the mold, a lifting main oil cylinder is installed in the middle of the base, the bottom end of the lifting main oil cylinder piston rod is connected to a lifting mechanism for lifting the mold, the lifting mechanism comprises a lifting plate, and the four corners of the lifting plate are provided with lifting rods that penetrate to the top of the base.

[0005] Furthermore, the base includes a base body, steps are provided on both sides of the base body, a mold placement platform is provided on the base body, positioning edges are provided around the mold placement platform, a cylinder through port and threaded holes evenly distributed around the cylinder through port are provided in the middle of the mold placement platform, and the lifting main cylinder is arranged through the cylinder through port and fixed to the mold placement platform through threaded holes.

[0006] Furthermore, the mold placement platform is also provided with a first through hole for the lifting rod to pass through and a second through hole for the oil circuit to pass through.

[0007] Furthermore, the upper end of the lifting rod is threadedly connected to a leveling screw via a locking nut.

[0008] Furthermore, the lifting main oil cylinder includes a lifting oil cylinder body and a lifting oil cylinder piston rod located at the lower end of the lifting oil cylinder body, the upper end of the lifting oil cylinder body is provided with a cylinder connecting flange, the cylinder connecting flange is provided with a flange screw hole corresponding to the position of the threaded hole, and the lifting oil cylinder body is fixed on the mold placing platform through the cylinder connecting flange, the upper end of the cylinder connecting flange and one side of the lifting oil cylinder body are provided with a cylinder oil circuit interface, the bottom of the lifting oil cylinder piston rod is provided with a locking screw and the middle part of the lifting plate is provided with a connecting interface threadedly connected to the locking screw.

[0009] Furthermore, the clamping mechanism comprises a mounting plate detachably connected to the base, a clamping cylinder and a clamping claw are hinged on the mounting plate, and an end of the clamping cylinder piston rod is hinged to one end of the clamping claw.

[0010] Furthermore, extension plates are provided on both sides of the base, T-shaped mounting grooves are provided on the extension plates, the mounting plates are I-shaped and the bottom of the mounting plates can move forward and backward in the T-shaped mounting grooves of the extension plates.

[0011] Compared with the prior art, the advantages of the utility model are as follows: the device ensures the precise centering of the mold through the mold placement platform and positioning edge on the base; the main lifting cylinder and the lifting rod are used to achieve a stable and uniform lifting force, effectively avoiding damage to the crucible during the demolding process; at the same time, the adjustable installation design of the clamping mechanism enables the device to adapt to molds of different sizes, improving the flexibility and applicability of demolding. Overall, the device has significant advantages in improving demolding efficiency, reducing product damage rate, and enhancing demolding adaptability, and effectively meets the current demand for high-quality and high-efficiency demolding devices in polysilicon production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a structural schematic diagram of a quartz square crucible ejection and demoulding device.

[0013] Figure 2 The utility model is a structural schematic diagram of a base in a quartz square crucible ejection and demoulding device.

[0014] Figure 3 The utility model is a structural schematic diagram of a lifting main oil cylinder in a quartz square crucible ejection and demoulding device.

[0015] Figure 4 The utility model is a partial structural schematic diagram of a lifting mechanism in a quartz square crucible ejection and demoulding device.

[0016] Figure 5 The utility model is a schematic diagram of a partial top view of the structure of a lifting mechanism in a quartz square crucible ejection and demoulding device.

[0017] Figure 6 The utility model is a structural schematic diagram of a clamping mechanism in a quartz square crucible ejection and demoulding device.

[0018] As shown in the figure: 1. Base, 1.1. Base body, 1.2. Mold placement platform, 1.3. Positioning edge, 1.4. Cylinder through port, 1.5. Threaded hole, 1.6. Second through hole, 1.7. Extension plate, 1.8. First through hole, 2. Lifting main cylinder, 2.1. Lifting cylinder body, 2.2. Cylinder connecting flange, 2.3. Flange screw hole, 2.4. Locking screw, 2.5. Cylinder oil circuit interface, 2.6. Lifting cylinder piston rod, 3. Lifting mechanism, 3.1. Lifting plate, 3.2. Connection interface, 3.3. Lifting rod, 4. Clamping mechanism, 4.1. Mounting plate, 4.2. Clamping cylinder, 4.3. Clamping claw, 5. Leveling screw, 6. Locking nut. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0021] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0023] Combined with Figure 1 -Attached Figure 6 A quartz square crucible ejection and demoulding device comprises a base 1, both sides of the base 1 are provided with clamping mechanisms 4 for clamping the mold, a lifting main oil cylinder 2 is installed in the middle of the base 1, the bottom end of the piston rod of the lifting main oil cylinder 2 is connected with a lifting mechanism 3 for lifting the mold, the lifting mechanism 3 comprises a lifting plate 3.1, and the four corners of the lifting plate 3.1 are provided with lifting rods 3.3 that penetrate to the top of the base 1.

[0024] In one embodiment, the base 1 includes a base body 1.1, steps are provided on both sides of the base body 1.1, a mold placement platform 1.2 is provided on the base body 1.1, positioning edges 1.3 are provided around the mold placement platform 1.2, a cylinder through port 1.4 and threaded holes 1.5 uniformly distributed around the cylinder through port 1.4 are provided in the middle of the mold placement platform 1.2, and the lifting main oil cylinder 2 is arranged through the cylinder through port 1.4 and fixed on the mold placement platform 1.2 through the threaded holes 1.5. The core component of the base 1 is the base body 1.1, which provides stable support for the entire device. Steps are designed on both sides of the base body 1.1, which not only enhance the structural strength of the base, but also provide a convenient up and down platform for the operator, making it safer and more convenient during the installation, adjustment and demolding of the mold. The mold placement platform 1.2 is located in the middle of the base body 1.1. It is a precisely machined plane used to ensure the stable placement of the mold. In order to ensure the precise centering of the mold on the placement platform, positioning edges 1.3 are set around the platform. These edges match the outer contour of the mold, so that the mold can be quickly and accurately placed at the specified position. In the middle of the mold placement platform 1.2, a cylinder through port 1.4 is designed to allow the lifting main cylinder 2 to pass through the platform and act directly under the mold. At the same time, in order to fix the lifting main cylinder 2, threaded holes 1.5 are evenly distributed around the platform. These holes correspond to the flange screw holes on the lifting main cylinder 2, and the cylinder is stably installed through bolt connection.

[0025] In one embodiment, the mold placement platform 1.2 is further provided with a first through hole 1.8 for the jacking rod 3.3 to pass through and a second through hole 1.6 for the oil circuit to pass through. The second through hole 1.6 is used for the oil circuit pipeline to pass through, ensuring that the oil circuit between the oil pump and the lifting main oil cylinder 2 is unobstructed. Such a design not only simplifies the layout of the oil circuit, but also improves the compactness and reliability of the entire device.

[0026] In one embodiment, the lifting rod 3.3 is a key component connecting the lifting main oil cylinder 2 and the mold. In order to ensure that the lifting rod can stably and accurately lift the mold during the lifting process, a leveling screw 5 is designed at the upper end of the lifting rod 3.3 in this embodiment. By rotating the leveling screw 5, the length of the lifting rod can be fine-tuned, thereby achieving the horizontal adjustment of the mold lifting surface.

[0027] In one embodiment, the lifting main oil cylinder 2 includes a lifting oil cylinder body 2.1 and a lifting oil cylinder piston rod 2.6 located at the lower end of the lifting oil cylinder body 2.1, a cylinder connecting flange 2.2 is provided at the upper end of the lifting oil cylinder body 2.1, a flange screw hole 2.3 corresponding to the position of the threaded hole 1.5 is provided on the cylinder connecting flange 2.2, and the lifting oil cylinder body 2.1 is fixed on the mold placement platform 1.2 through the cylinder connecting flange 2.2, a cylinder oil circuit interface 2.5 is provided at the upper end of the cylinder connecting flange 2.2 and one side of the lifting oil cylinder body 2.1, a locking screw 2.4 is provided at the bottom of the lifting oil cylinder piston rod 2.6, and a connection interface 3.2 threadedly connected to the locking screw 2.4 is provided in the middle of the lifting plate 3.1. The lifting oil cylinder piston rod 2.6 is provided with a locking screw 2.4 at the bottom, which is threadedly connected to the connection interface 3.2 in the middle of the lifting plate 3.1. In this way, when the lifting main oil cylinder 2 is extended and retracted, the lifting plate 3.1 can be driven to move up and down through the piston rod, thereby realizing the lifting and demoulding of the mold.

[0028] In one embodiment, the clamping mechanism 4 includes a mounting plate 4.1 detachably connected to the base 1, a clamping cylinder 4.2 and a clamping claw 4.3 are hinged on the mounting plate 4.1, and the end of the piston rod of the clamping cylinder 4.2 is hinged to one end of the clamping claw 4.3. When the clamping cylinder 4.2 contracts, the other end of the clamping claw 4.3 moves downward to clamp the mold. By controlling the expansion and contraction of the clamping cylinder 4.2, the mold can be clamped and released quickly and reliably.

[0029] In order to meet the clamping requirements of different types of molds, this embodiment is designed with an adjustable clamping mechanism 4. The clamping mechanism includes a mounting plate 4.1 detachably connected to the base 1. The mounting plate 4.1 is designed as an I-shaped plate and can move forward and backward in the T-shaped mounting grooves of the extension plates 1.7 on both sides of the base 1. In this way, by adjusting the position of the mounting plate 4.1, it is possible to clamp molds of different sizes.

[0030] Working principle: The present invention clamps and fixes the outer mold through the clamping mechanism 4, connects four lifting rods 3.3 that move up and down through the lifting main oil cylinder 2, and the lifting rods 3.3 lift the lifting plate 3.1 and push out the crucible through the up and down movement of the lifting main oil cylinder 2, thereby realizing stable demoulding of the outer mold of the mold. The lifting main oil cylinder 2 and the clamping cylinder 4.2 are controlled by a three-position four-way electromagnetic control valve after the oil pump supplies oil, and the oil pipeline passes through the second through hole 1.6 and is connected to the oil pump (not drawn here). Steps are provided on both sides of the base body 1.1 for easy operation, and it is convenient for people to get on and off through 1.1. The mold of the square crucible is installed above the mold placement platform 1.2. In order to facilitate the positioning of the mold, a positioning edge 1.3 is designed for concentric placement of the mold; after the mold is placed in place, the clamping mechanism 4 is used to fix the mold. The clamping mechanism 4 is used in conjunction with the T-shaped mounting groove of the extension plate 1.7 through the I-shaped notch of the mounting plate 4.1. The clamping mechanism 4 can slide back and forth on the base 1 through the extension plate 1.7, which is convenient for adjusting the position of the clamping mechanism 4 for different types of molds.

[0031] The clamping cylinder 4.2 of the clamping mechanism 4 is connected to the oil pump to realize the extension and retraction of the oil cylinder. The piston rod of the clamping cylinder 4.2 is hinged to the clamping claw 4.3 to realize the up and down movement of the clamping claw 4.3.

[0032] The ejection mechanism 3 is connected to the locking screw 2.4 of the lifting main cylinder 2 through the connecting interface 3.2. The lifting main cylinder 2 is extended and retracted to drive the lifting rod 3.3 to move up and down, and the lifting rod 3.3 moves up and down to eject the crucible bottom plate. The upper leveling screw 5 of the lifting rod 3.3 can change the length of the lifting rod 3.3, thereby realizing the horizontal adjustment of the upper end surface, so as to realize the horizontal ejection of the crucible bottom plate.

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A quartz crucible ejection and demoulding device, comprising a base (1), characterized in that: Clamping mechanisms (4) for clamping the mold are provided on both sides of the base (1), a lifting main oil cylinder (2) is installed in the middle of the base (1), and the bottom end of the piston rod of the lifting main oil cylinder (2) is connected to a lifting mechanism (3) for lifting the mold, and the lifting mechanism (3) includes a lifting plate (3.1), and the four corners of the lifting plate (3.1) are provided with lifting rods (3.3) that penetrate to the top of the base (1).

2. A quartz square crucible ejection and demoulding device according to claim 1, characterized in that: The base (1) comprises a base body (1.1), steps are provided on both sides of the base body (1.1), a mold placement platform (1.2) is provided on the base body (1.1), positioning edges (1.3) are provided around the mold placement platform (1.2), a cylinder through-port (1.4) and threaded holes (1.5) uniformly distributed around the cylinder through-port (1.4) are provided in the middle of the mold placement platform (1.2), and the lifting main cylinder (2) is arranged through the cylinder through-port (1.4) and is fixed to the mold placement platform (1.2) through the threaded holes (1.5).

3. A quartz square crucible ejection and demoulding device according to claim 2, characterized in that: The mold placement platform (1.2) is also provided with a first through hole (1.8) for the lifting rod (3.3) to pass through, and a second through hole (1.6) for the oil circuit to pass through.

4. A quartz square crucible ejection and demoulding device according to claim 3, characterized in that: The upper end of the lifting rod (3.3) is threadedly connected to a leveling screw rod (5) via a locking nut (6).

5. The quartz square crucible ejection and demoulding device according to claim 2, characterized in that: The lifting main oil cylinder (2) comprises a lifting oil cylinder body (2.1) and a lifting oil cylinder piston rod (2.6) located at the lower end of the lifting oil cylinder body (2.1); a cylinder connecting flange (2.2) is provided at the upper end of the lifting oil cylinder body (2.1); a flange screw hole (2.3) corresponding to the position of the threaded hole (1.5) is provided on the cylinder connecting flange (2.2); and the lifting oil cylinder body (2.1) is fixed to the mold placement platform (1.2) through the cylinder connecting flange (2.2); a cylinder oil circuit interface (2.5) is provided at the upper end of the cylinder connecting flange (2.2) and one side of the lifting oil cylinder body (2.1); a locking screw (2.4) is provided at the bottom of the lifting oil cylinder piston rod (2.6); and a connecting interface (3.2) threadedly connected to the locking screw (2.4) is provided in the middle of the lifting plate (3.1).

6. The quartz square crucible ejection and demoulding device according to claim 1, characterized in that: The clamping mechanism (4) comprises a mounting plate (4.1) detachably connected to a base (1), a clamping cylinder (4.2) and a clamping claw (4.3) being hingedly connected to the mounting plate (4.1), and an end of a piston rod of the clamping cylinder (4.2) being hingedly connected to one end of the clamping claw (4.3).

7. A quartz square crucible ejection and demoulding device according to claim 6, characterized in that: Extension plates (1.7) are provided on both sides of the base (1), and T-shaped mounting grooves are provided on the extension plates (1.7). The mounting plate (4.1) is I-shaped and the bottom of the mounting plate (4.1) can move forward and backward in the T-shaped mounting grooves of the extension plates (1.7).

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