Cutting device for recycling graphite chucks
By designing a cutting device for recycling graphite chucks, the problem of difficulty in separation between graphite chucks and silicon rods is solved, and the reuse of graphite chucks is realized, reducing production costs and reducing environmental impact.
Patent Information
- Application Number
- CN202422301148.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During the polysilicon production process, it is difficult to separate the graphite chuck from the silicon rod, resulting in waste of resources and increased production costs, while also having an impact on the environment.
A cutting device including an operating platform, a chuck fixer, a cutting mechanism, a silicon core unloading mechanism and a vacuum cleaner are designed. The graphite chuck is fixed through a chuck fixer, and the cutting mechanism is cut in the radial direction. The silicon core unloading mechanism realizes the separation of the silicon core and the graphite chuck, and prevents contamination through the vacuum cleaner.
The efficient separation of graphite chuck and silicon rod is achieved, reducing damage to graphite chuck, allowing it to be reused, reducing production costs, and easy to operate and reduce environmental pollution.
Smart Images
Figure CN223057414U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polysilicon production equipment, in particular to a cutting device for recycling graphite chucks. Background Art
[0002] In the production process of polysilicon, graphite chucks are an important auxiliary raw material and are used in large quantities. Before the production furnace is charged, the silicon core is connected to the hole of the graphite chuck by a thread. In the reduction furnace, silicon rods are produced through a reduction process; during the reduction reaction process, silicon material continuously deposits on the upper end of the silicon core, and the diameter gradually becomes thicker until the qualified silicon rod size is finally reached. After the silicon rod completes the reaction, the silicon rod needs to be removed and separated from the graphite chuck. Since one end of the silicon core is inserted into the graphite chuck, during the high-temperature reduction reaction, silicon material will not only deposit on the silicon core but also on the graphite chuck, causing a large amount of silicon material to adhere to the surface of the graphite chuck and the silicon core embedded in the tapered part of the graphite chuck, resulting in a tight combination between the graphite chuck and the silicon rod and making disassembly difficult. Currently, the graphite chuck is mainly separated from the silicon rod by knocking it to break it; the broken graphite chuck can only be scrapped, which not only causes waste of resources but also increases the production cost for its subsequent treatment, and to a certain extent, it will also have an impact on the environment. Summary of the Utility Model
[0003] In view of this, the utility model provides a cutting device for recycling graphite chucks, mainly aiming to separate the graphite chuck from the silicon rod, reduce damage to the graphite chuck, enable the graphite chuck to be reused, reduce production costs, and have quick operation.
[0004] To achieve the above object, the utility model mainly provides the following technical solutions:
[0005] An embodiment of the utility model provides a cutting device for recycling graphite chucks, including: an operation platform, a driving mechanism, a chuck fixture, a cutting mechanism, a silicon core unloading mechanism, and a dust collection mechanism;
[0006] The driving mechanism is fixedly arranged on the operation platform;
[0007] The chuck fixture includes: a fastening cylinder and a locking member;
[0008] The fastening cylinder is detachably arranged on the output shaft of the driving mechanism;
[0009] The fastening cylinder has a receiving hole for receiving the graphite chuck to be cut;
[0010] One side of the fastening cylinder has a threaded hole; the axis of the threaded hole is perpendicular to the axis of the receiving hole; the threaded hole communicates with the receiving hole;
[0011] The locking member is installed on the threaded hole for locking the graphite chuck on the receiving hole;
[0012] The cutting mechanism is fixedly arranged on the operation platform for radially cutting the locked graphite chuck;
[0013] The silicon core unloading mechanism includes: a base, a limiting member and a clamping mechanism;
[0014] The base is slidably arranged on the operation platform and can slide relative to the operation platform along the axial direction of the fastening cylinder;
[0015] The limiting member is fixedly arranged on the base; the limiting member has a limiting hole; the limiting hole is in the shape of a truncated cone hole; the limiting hole and the receiving hole are coaxially distributed;
[0016] The clamping mechanism includes: a first clamping member, a first transmission gear, a second clamping member, a second transmission gear and an operating member;
[0017] The first clamping member is connected to the base through a first rotating shaft and can swing relative to the base; the first clamping member is in transmission connection with the first rotating shaft;
[0018] The inner side of the first clamping member has a first clamping groove;
[0019] A flexible anti-slip layer is arranged in the first clamping groove;
[0020] The first transmission gear is sleeved on the first rotating shaft and is in transmission connection with the first rotating shaft;
[0021] The second clamping member is connected to the base through a second rotating shaft and can swing relative to the base;
[0022] The second clamping member is in transmission connection with the second rotating shaft;
[0023] The inner side of the second clamping member has a second clamping groove;
[0024] A flexible anti-slip layer is arranged in the second clamping groove;
[0025] The second transmission gear is sleeved on the second rotating shaft and is in transmission connection with the second rotating shaft;
[0026] The second transmission gear meshes with the first transmission gear;
[0027] The operating member is fastened to the first rotating shaft or the second rotating shaft and is used to rotate the first rotating shaft or the second rotating shaft, thereby driving the first clamping member and the second clamping member to rotate, so that the first clamping groove and the second clamping groove symmetrically clamp one end of the silicon core in the graphite chuck on both sides;
[0028] The dust suction mechanism is fixedly arranged on the operating platform; the dust suction port of the dust suction mechanism is arranged around the cutting mechanism and the chuck holder.
[0029] Further, the first flexible anti-slip layer is a rubber layer or a leather layer.
[0030] Further, the second flexible anti-slip layer is a rubber layer or a leather layer.
[0031] Further, the first flexible anti-slip layer is detachably arranged in the first clamping groove.
[0032] Further, the second flexible anti-slip layer is detachably arranged in the second clamping groove.
[0033] Further, the cutting mechanism is an angle grinder.
[0034] By means of the above technical solutions, the cutting device for recycling graphite chucks of the present invention has at least the following advantages:
[0035] It can separate the graphite chuck from the silicon rod, reduce damage to the graphite chuck, enable the graphite chuck to be reused, reduce production costs, and is quick to operate.
[0036] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 is a schematic diagram of a cutting device for recycling graphite chucks provided by an embodiment of the present invention;
[0038] Figure 2 is a schematic diagram of a clamping mechanism in a cutting device for recycling graphite chucks provided by an embodiment of the present invention.
[0039] As shown in the figure:
[0040] 1 is the operating platform, 2 is the driving mechanism, 3 is the cutting mechanism, 4 is the silicon core unloading mechanism, 4-1 is the limiting member, 4-2 is the clamping mechanism, 4-21 is the first clamping member, 4-22 is the second clamping member, 4-23 is the second transmission gear, 4-24 is the operating member, 4-25 is the first transmission gear, 4-26 is the first flexible anti-slip layer, 4-27 is the second flexible anti-slip layer, 4-3 is the base, 5 is the dust suction mechanism, 6 is the collection box, 7 is the collet fixture, 7-1 is the fastening cylinder, and 7-2 is the locking member. Detailed implementation mode
[0041] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended utility model purpose, the following combines the accompanying drawings and preferred embodiments to describe in detail the specific implementation mode, structure, features, and effects of the application according to the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.
[0042] As Figure 1 and Figure 2 shown, a cutting device for recycling graphite collets proposed in an embodiment of the present invention includes: an operating platform 1, a driving mechanism 2, a collet fixture 7, a cutting mechanism 3, a silicon core unloading mechanism 4, and a dust suction mechanism 5; the operating platform 1 is a frame structure; the upper end of the operating platform 1 has an operating plane. The driving mechanism 2 is fixedly arranged on the operating platform 1; the driving mechanism 2 is a driving motor or a combination of a driving motor and a transmission.
[0043] The collet fixture 7 is used to fix the graphite collet to be cut. The collet fixture 7 includes: a fastening cylinder 7-1 and a locking member 7-2; the fastening cylinder 7-1 is detachably arranged on the output shaft of the driving mechanism 2. The fastening cylinder 7-1 can be fastened to the output shaft of the driving mechanism 2 by a plurality of bolts. The fastening cylinder 7-1 has a receiving hole for receiving the graphite collet to be cut; one side of the fastening cylinder 7-1 has a threaded hole; the axis of the threaded hole is perpendicular to the axis of the receiving hole; the threaded hole communicates with the receiving hole; the locking member 7-2 is installed on the threaded hole for locking the graphite collet on the receiving hole.
[0044] The cutting mechanism 3 is fixedly arranged on the operating platform 1 and is used for cutting the locked graphite chuck along the radial direction; the graphite chuck rotates under the drive of the drive mechanism 2, and the cutting blade of the cutting mechanism 3 rotates to cut the rotating graphite chuck. The cutting position of the graphite chuck can be selected according to the damage at the end of the graphite chuck and the adhesion of the silicon material, and it is ensured that the support and connection functions of the graphite chuck for the silicon core are not affected. Preferably, the cutting direction of the cutting blade of the cutting mechanism 3 for the graphite chuck is opposite to the thread direction of the silicon core, so that when the cutting blade cuts to the silicon core, it can generate frictional force on the silicon core to promote the rotation of the silicon core and is beneficial to the silicon core to withdraw from the graphite chuck. Preferably, a limiting member 4-1 is arranged between the cutting mechanism 3 and the operating platform 1 and is used for limiting the cutting depth of the cutting mechanism 3, so that the cutting blade completely cuts the graphite chuck and reduces the cutting of the silicon core in the graphite chuck. Preferably, the cutting mechanism 3 is an angle grinder.
[0045] The silicon core unloading mechanism 4 includes: a base 4-3, a limiting member 4-1, and a clamping mechanism 4-2; the base 4-3 is slidably arranged on the operation platform 1 and can slide axially along the fastening cylinder 7-1 relative to the operation platform 1; when the base 4-3 slides, it drives the limiting member 4-1 and the clamping mechanism 4-2 to approach or move away from the chuck holder 7, so as to separate the silicon core that has not been separated after the graphite chuck is cut. The rotation direction of the chuck holder 7 is opposite to the thread direction of the silicon core. When the silicon core is clamped, the graphite chuck continues to rotate driven by the chuck holder 7, and the silicon core rotates relative to the graphite chuck to achieve separation from the graphite chuck. The limiting member 4-1 is fixedly arranged on the base 4-3; there is a limiting hole on the limiting member 4-1; the limiting hole is in the shape of a truncated cone hole and matches the end of the graphite chuck; the limiting hole and the accommodating hole are coaxially distributed; during operation, the operator can quickly push the base 4-3 towards the chuck holder 7 so that the limiting hole can be abutted against the conical surface at the end of the graphite chuck, realizing the quick corresponding positioning of the clamping mechanism 4-2 and the silicon core leaking out of the graphite chuck. The clamping mechanism 4-2 includes: a first clamping member 4-21, a first transmission gear 4-25, a second clamping member 4-22, a second transmission gear 4-23, and an operating member 4-24; the first clamping member 4-21 is connected to the base 4-3 through a first rotating shaft and can swing relative to the base 4-3; the first clamping member 4-21 is in transmission connection with the first rotating shaft; the rotation of the first rotating shaft can drive the first clamping member 4-21 to swing. The inner side of the first clamping member 4-21 has a first clamping groove; the first clamping groove and the second clamping groove act symmetrically with each other for clamping the silicon core. A first flexible anti-slip layer 4-26 is arranged in the first clamping groove to prevent the silicon core from directly contacting the first clamping groove, avoid metal contamination of the silicon core, facilitate the recycling of the silicon core, and increase the friction force. Preferably, the first flexible anti-slip layer 4-26 is detachably arranged in the first clamping groove for easy replacement. Further preferably, the first flexible anti-slip layer 4-26 is a rubber layer or a leather layer to avoid metal contamination of the silicon core. The first transmission gear 4-25 is sleeved on the first rotating shaft and is in transmission connection with the first rotating shaft; the second clamping member 4-22 is connected to the base 4-3 through a second rotating shaft and can swing relative to the base 4-3; the second clamping member 4-22 is in transmission connection with the second rotating shaft; the second transmission gear 4-23 is sleeved on the second rotating shaft and is in transmission connection with the second rotating shaft; the rotation of the second transmission gear 4-23 can drive the second clamping member 4-22 to swing.
[0046] The inner side of the second clamping member 4-22 has a second clamping groove; a second flexible anti-slip layer 4-27 is arranged in the second clamping groove; to prevent the silicon core from directly contacting the second clamping groove, avoid metal contamination of the silicon core, facilitate the recycling of the silicon core, and increase the friction force. Preferably, the second flexible anti-slip layer 4-27 is detachably arranged in the second clamping groove for easy replacement. Preferably, the second flexible anti-slip layer 4-27 is a rubber layer or a leather layer to avoid metal contamination of the silicon core.
[0047] The second transmission gear 4-23 meshes with the first transmission gear 4-25 to ensure that the first clamping member 4-21 and the second clamping member 4-22 swing simultaneously. The operating member 4-24 is fastened to the first rotating shaft or the second rotating shaft and is used to rotate the first rotating shaft or the second rotating shaft, thereby driving the first clamping member 4-21 and the second clamping member 4-22 to rotate, so that the first clamping groove and the second clamping groove symmetrically clamp one end of the silicon core in the graphite chuck on both sides. A collection box 6 is arranged at the lower part of the operating platform 1. The collection box 6 is located below the chuck fixture 7 and is used to collect the disassembled silicon core and graphite chuck.
[0048] The dust suction mechanism 5 is fixedly arranged on the operating platform 1; the dust suction port of the dust suction mechanism 5 is arranged around the cutting mechanism 3 and the chuck fixture 7 to prevent environmental pollution during cutting.
[0049] A cutting device for recycling graphite chucks proposed by an embodiment of the present utility model can separate the graphite chuck from the silicon rod, reduce damage to the graphite chuck, enable the graphite chuck to be reused, reduce production costs, and is quick to operate.
[0050] A cutting device for recycling graphite chucks proposed by an embodiment of the present utility model performs secondary processing and utilization on the disassembled graphite chucks, is simple to operate, safe and reliable, and has high efficiency. The graphite dust generated during processing can be directly recycled. The remaining silicon core in the graphite chuck can also be recycled again. At the same time, the daily processing capacity of a single device can reach 150 to 200; calculated at 50 yuan for each graphite chuck, the daily processing of used chucks can save 10,000 yuan in costs, and only one person is required to operate alone, without restricting the operating environment and site. Only the diamond cutting blade needs to be replaced for long-term cutting, which greatly improves the progress of subsequent machining operations.
[0051] Further explanation, although terms such as first and second can be used in this article to describe various elements, these terms should not limit these elements. These terms are only used to distinguish one element from another. For example, the first element can be called the second element, and similarly, the second element can be called the first element. These terms are only used to distinguish one element from another. This does not deviate from the scope of the exemplary embodiment. Similarly, element one and element two do not represent the order of the elements. These terms are only used to distinguish one element from another. As used herein, the term "and / or" includes any combination and all combinations of one or more related listed items.
[0052] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "attachment", and "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0053] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.
[0054] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A cutting device for recycling graphite chucks, characterized in that, It includes: an operation platform, a driving mechanism, a chuck holder, a cutting mechanism, a silicon core unloading mechanism, and a dust suction mechanism; The driving mechanism is fixedly arranged on the operation platform; The chuck holder includes: a fastening cylinder and a locking member; The fastening cylinder is detachably arranged on the output shaft of the driving mechanism; The fastening cylinder has a receiving hole for receiving the graphite chuck to be cut; One side of the fastening cylinder has a threaded hole; the axis of the threaded hole is perpendicular to the axis of the receiving hole; the threaded hole communicates with the receiving hole; The locking member is installed on the threaded hole for locking the graphite chuck on the receiving hole; The cutting mechanism is fixedly arranged on the operation platform for radially cutting the locked graphite chuck; The silicon core unloading mechanism includes: a base, a limiting member, and a clamping mechanism; The base is slidably arranged on the operation platform and can slide relative to the operation platform along the axial direction of the fastening cylinder; The limiting member is fixedly arranged on the base; the limiting member has a limiting hole; the limiting hole is in the shape of a frustum of a cone; the limiting hole and the receiving hole are coaxially distributed; The clamping mechanism includes: a first clamping member, a first transmission gear, a second clamping member, a second transmission gear, and an operating member; The first clamping member is connected to the base through a first rotating shaft and can swing relative to the base; the first clamping member is in transmission connection with the first rotating shaft; The inner side of the first clamping member has a first clamping groove; A flexible anti-slip layer one is arranged in the first clamping groove; The first transmission gear is sleeved on the first rotating shaft and is in transmission connection with the first rotating shaft; The second clamping member is connected to the base through a second rotating shaft and can swing relative to the base; The second clamping member is in transmission connection with the second rotating shaft; The inner side of the second clamping member has a second clamping groove; A flexible anti-slip layer two is arranged in the second clamping groove; The second transmission gear is sleeved on the second rotating shaft and is in transmission connection with the second rotating shaft; The second transmission gear meshes with the first transmission gear; The operating member is fastened on the first rotating shaft or the second rotating shaft for rotating the first rotating shaft or the second rotating shaft, thereby driving the first clamping member and the second clamping member to rotate, so that the first clamping groove and the second clamping groove symmetrically clamp one end of the silicon core in the graphite chuck on both sides; The dust suction mechanism is fixedly arranged on the operation platform; the dust suction port of the dust suction mechanism is surrounded and arranged around the cutting mechanism and the chuck holder.
2. The cutting device for recycling graphite chucks according to claim 1, wherein The flexible anti-slip layer one is a rubber layer or a leather layer.
3. The cutting device for recycling graphite chucks according to claim 1, wherein The flexible anti-slip layer two is a rubber layer or a leather layer.
4. The cutting device for recycling graphite chucks according to claim 1, wherein The flexible anti-slip layer one is detachably arranged in the first clamping groove.
5. The cutting device for recycling graphite chucks according to claim 1, characterized in that the second flexible anti-slip layer is detachably arranged in the second clamping groove.
6. The cutting device for recycling graphite chucks according to claim 1, characterized in that the cutting mechanism is an angle grinder.