Automatic hanging system for charging barrel of single crystal furnace

Abstract

The utility model provides an automatic material hanging system of a single crystal furnace charging barrel, which comprises an outer shell, a lifting and hanging assembly, a guide cover and a charging barrel joint, the side edge of the outer shell is provided with a movable groove and an open hole, the lifting and hanging assembly comprises a limiting pin, a spring pressing rod and a movable arm, and the top of the guide cover is in threaded connection with the outer shell and is communicated with the outer shell. The bottom of the charging barrel connector is fixedly connected with the quartz stone barrel, and the other end of the charging barrel connector can be connected to the lifting and hanging assembly. The charging barrel can be quickly and accurately hung, the safety risk is reduced, the time and the cost of manual operation are reduced, the problems of unstable hanging or misoperation and the like caused by human factors can be avoided, the structural design is simple and reasonable, the use is convenient and quick, the practicability is very high, and the charging barrel hanging device is suitable for the production process of a single crystal furnace and also suitable for popularization and application. The device can also be expanded to other industrial fields needing automatic hanging and feeding, relevant industries can be promoted to be upgraded and transformed, and the automation level and production efficiency of the whole industry are improved.

Description

Technical Field

[0001] This utility model relates to the field of single crystal furnace technology, specifically to an automatic material hanging system for a single crystal furnace barrel. Background Technology

[0002] Quartz cylinders are containers used in single-crystal furnaces to hold and transport silicon or other raw materials. Their stability and precision are crucial to the entire production process. The quartz cylinder receives the raw materials within the heating zone of the furnace, where they undergo high-temperature heating and melting processes to ensure the production of high-quality single-crystal materials. The quartz cylinder not only carries the raw materials within the furnace but also plays a role in distributing and controlling their movement. The stability of the cylinder directly affects the uniform distribution of the material within the furnace and the precise control of the growth process.

[0003] In the production process of single crystal furnaces, the suspension and feeding of the quartz cylinder are crucial steps. Traditional cylinder suspension methods mostly rely on manual operation, which is not only time-consuming and labor-intensive but also poses safety hazards. Furthermore, errors in manual operation can lead to unstable cylinder suspension, easily causing damage to the quartz cylinder. This, in turn, affects the growth quality and production efficiency of the single crystal. Therefore, developing an automated, efficient, and stable cylinder feeding method is of paramount importance. Utility Model Content

[0004] The purpose of this invention is to provide an automatic material hanging solution for the quartz barrel of a single crystal furnace. This solution aims to solve the problems of inconvenient quartz barrel hanging, low efficiency, and complex operation in the existing single crystal furnace feeding process. Through the implementation of this invention, rapid, accurate, and automated material hanging of the barrel can be achieved, thereby improving the production efficiency and product quality of the single crystal furnace.

[0005] To achieve the above objectives, this utility model proposes the following technical solution: an automatic charging system for a single crystal furnace barrel, comprising:

[0006] The outer shell (1) has a cavity inside, and the outer shell (1) has a movable groove (101) and an opening (102) on its side;

[0007] The lifting assembly (2) includes a limiting pin (201), a spring rod (202), and a movable arm (203). The limiting pin (201) is movably connected to the outer shell (1) via a rotating shaft. One end of the spring rod (202) is movably connected to the limiting pin (201). The spring rod (202) is movably connected to the movable arm (203) via a movable shaft (205). The movable arm (203) has a shaft groove (204) that matches the movable shaft (205). A spring (206) is fixedly connected to the inner cavity of the movable arm (203). The other end of the spring rod (202) is fixedly connected to the spring (206).

[0008] Guide cover (3), the top of the guide cover (3) is threadedly connected to the outer shell (1), and the top of the guide cover (3) is in communication with the outer shell (1);

[0009] The bottom of the material cylinder connector (4) is fixedly connected to the quartz stone cylinder, and the other end of the material cylinder connector (4) can be connected to the lifting assembly (2).

[0010] Furthermore, in this utility model, the outer shell (1) has a plurality of through holes from top to bottom.

[0011] Furthermore, in this invention, the top of the outer shell (1) has an internal thread (103).

[0012] Furthermore, in this utility model, the number of the limiting pin (201), the spring pressure rod (202), and the movable arm (203) are all four.

[0013] Furthermore, in this utility model, the barrel connector (4) includes a first rod (401), the top of the first rod (401) is fixedly connected to a first cone (402), the top and bottom of the first cone (402) are both conical, the top of the first cone (402) is fixedly connected to a second rod (403), the top of the second rod (403) is fixedly connected to a second cone (404), the top of the second cone (404) is conical.

[0014] Beneficial effects: The technical solution of this application has the following technical effects:

[0015] This invention enables rapid and accurate suspension of the material cylinder, reducing safety risks, minimizing manual operation time and costs, and avoiding problems such as unstable suspension or operational errors caused by human factors. Its simple and reasonable structural design makes it convenient and quick to use, possessing strong practicality. It is not only applicable to single crystal furnace production processes but can also be extended to other industrial fields requiring automated suspension and feeding, helping to promote the upgrading and transformation of related industries and improve the automation level and production efficiency of the entire industry.

[0016] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other.

[0017] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0018] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a partial structural diagram of the present invention.

[0021] Figure 3 This is the front view of the present utility model.

[0022] Figure 4 This utility model Figure 3 A cross-sectional view of BB.

[0023] Figure 5 This is a schematic diagram of the structure of the barrel connector of this utility model.

[0024] Figure 6 This is a diagram illustrating the motion process of this utility model.

[0025] Figure 7 To simulate the feeding diagram, Figure 7 H3: The height of the lower edge of the sub-chamber of the single crystal furnace from the ground; Figure 7 H2: The height of the upper edge of the barrel connector from the ground; Figure 7H1: The height of the upper edge of the quartz cylinder from the ground.

[0026] The positive direction is defined as downward, and the negative direction is defined as rising into the secondary room.

[0027] In the figure, the meanings of the reference numerals are as follows: 1. Outer shell; 101. Movable groove; 102. Opening; 103. Internal thread; 2. Lifting assembly; 201. Limit pin; 202. Spring pressure rod; 203. Movable arm; 204. Shaft groove; 205. Movable shaft; 206. Spring; 3. Guide cover; 4. Barrel connector; 401. First rod; 402. First cone; 403. Second rod; 404. Second cone. Detailed Implementation

[0028] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0029] Example 1

[0030] like Figure 1-7 As shown, this embodiment proposes an automatic charging system for a single-crystal furnace barrel, including an outer shell 1, a lifting assembly 2, a guide cover 3, and a barrel connector 4. The outer shell 1 has an internal cavity and multiple through holes running from top to bottom. The outer shell 1 serves as the supporting structure for the entire system, enclosing the internal mechanical components and providing fixed positions for other parts. Its cavity design accommodates internal moving devices while ensuring the stability and reliability of the equipment during operation. The robust structure of the outer shell ensures the stability and durability of the entire system. The outer shell provides protection for the internal precision components, preventing external interference or damage. The sides of the outer shell 1 have movable slots 101 and openings 102, providing movement space for other components. The movable slots allow some components to move or rotate within a certain range, while the openings facilitate component assembly and installation, reducing assembly difficulty and time.

[0031] The top of the housing 1 has an internal thread 103, which provides more installation and adjustment space, allowing the overall structure to be easily connected to other devices or components.

[0032] The lifting assembly 2 is the core component, responsible for suspending and fixing the quartz cylinder. The lifting assembly 2 includes four limit pins 201, four spring rods 202, and four movable arms 203. The combination of each component forms a control and support mechanism to ensure the stable suspension of the cylinder. Through the cooperation of these components, the cylinder suspension task can be completed accurately and stably in a short time, reducing the uncertainty caused by manual operation.

[0033] The limiting pin 201 is movably connected to the outer shell 1 via a rotating shaft. One end of the spring rod 202 is movably connected to the limiting pin 201. The spring rod 202 is movably connected to the movable arm 203 via a movable shaft 205. The movable arm 203 has a shaft groove 204 that matches the movable shaft 205. A spring 206 is fixedly connected to the inner cavity of the movable arm 203. The other end of the spring rod 202 is fixedly connected to the spring 206.

[0034] The top of the guide cover 3 is threadedly connected to the outer shell 1, and the top of the guide cover 3 communicates with the outer shell 1. The guide cover 3 is designed to prevent fooling.

[0035] The bottom of the cylinder connector 4 is fixedly connected to the quartz cylinder, and the other end of the cylinder connector 4 can be connected to the lifting assembly 2. The cylinder connector 4 includes a first rod 401, the top of the first rod 401 is fixedly connected to a first cone 402, both the top and bottom of the first cone 402 are conical, the top of the first cone 402 is fixedly connected to a second rod 403, the top of the second rod 403 is fixedly connected to a second cone 404, the top of the second cone 404 is conical, and the first cone 402 is larger than the second cone 404.

[0036] The movement trajectory of the quartz barrel is as follows:

[0037] 1. Transportation Stage: Quartz cylinders are transported from the feeding workshop to the designated feeding furnace by AGV trolleys.

[0038] 2. Erection stage: After arriving at the designated furnace platform, the quartz cylinder is manually erected in preparation for subsequent operations.

[0039] 3. Replacement of the material hanging device: The lifting head is lowered via the single crystal furnace operation interface. The material hanging device (in this embodiment) is replaced manually by rotating it through the threaded structure.

[0040] 4. Lifting and Positioning: Lift the quartz cylinder to the sum of the cylinder height and the suspension rod height (e.g., cylinder 2000mm + suspension rod 150mm, total 2150mm). Then, lower the device by 150mm to gradually lock the quartz cylinder and ensure stability.

[0041] 5. Automatic feeding: Select the automatic feeding process on the single crystal furnace operation page. The single crystal furnace will automatically and slowly feed the quartz barrel into the auxiliary chamber of the single crystal furnace, and then complete the feeding process.

[0042] Specifically, in use, such as Figure 2 and Figure 6 As shown, in the initial state, the movable shaft 205 is located at the bottom of the shaft groove 204, as... Figure 6 In Figure a, when the barrel connector 4 moves upward, the second cone 404 opens and rotates the limiting pin 201. At this time, the limiting pin 201 will drive the pressure rod 202 to move upward and compress the spring 206. At this time, the movable shaft 205 is located at the top of the shaft groove 204. When it moves to... Figure 6 When the spring 206 pushes the pressure rod 202 to reset and drives the limit pin 201, the limit pin 201 supports the second cone 404 of the barrel connector 4.

[0043] The guide rod continues to move upwards, until it reaches... Figure 6 In Figure c, the first cone 402 of the barrel connector 4 opens and rotates the limiting pin 201. Since the first cone 402 is larger than the second cone 404, the first cone 402 pushes the limiting pin 201 to open and rotate. The limiting pin 201 drives the movable shaft 205 to move to the top of the shaft groove 204 and then returns to the bottom of the shaft groove 204. The state at this time is shown in the figure. Figure 6 Image C in the middle.

[0044] When preparing to release the quartz barrel, the first cone 402 of the barrel connector 4 moves downward until it reaches... Figure 6 In the middle diagram (d), at this time, the first cone 402 of the barrel connector 4 will drive the limit pin 201 to rotate in the opposite direction, as shown in Figure d. Figure 6 In the middle e, the limit pin 201 is restored to its initial state, such as Figure 6 This completed the task of hanging material on the material cylinder.

[0045] Thanks to the ingenious structural shape and connection design of the limit pin 201, spring pressure rod 202 and movable arm 203, the loading and unloading actions can be completed automatically.

[0046] Example 2

[0047] This embodiment, based on Embodiment 1, selects a suitable control system, such as a PLC or microcontroller, and introduces a material cylinder transport vehicle and an MES system to ensure correct connections between the various devices. The control system is used to add an automatic material loading process (MES system). A suitable control program is selected based on the actual situation of the equipment to ensure it runs according to predetermined logic and timing. Existing mature technologies are acceptable. The PLC or microcontroller realizes the automated control of the equipment. The material cylinder transport vehicle is an AGV (Automated Guided Vehicle) that moves the quartz cylinder to a designated position. Based on the automatic control of the single crystal furnace, key data and information from the production process are fed back to the MES system. Sensors and the control system collect key data such as temperature and pressure inside the single crystal furnace in real time. (This is existing technology and will not be elaborated further).

[0048] Simulated feeding process such as Figure 7 The trajectory is shown in the table below.

[0049] Serial Number Lift / fall time slow Crystal position Lift / Fall / Stop 1 <![CDATA[( m i n )]]> <![CDATA[( mm / m i n )]]> <![CDATA[( mm )]]> (state) 2 0 0 H3 whereabouts 3 1 200 (H3-H1)-(H3-H2) whereabouts 4 5 200 5*200 promote 5 5 500 5.500 promote 6 2 150 -3500 stop

[0050] The implementation of the process flow,

[0051] This step is the automatic material hanging cylinder process for a single crystal furnace. The single crystal furnace controls the lifting head to fall and fix the hanging rod according to the parameter table. Then, according to the design speed, the lifting function is executed to lift to the crystal position -3500mm (with the bottom edge of the single crystal furnace as 0 distance, and the distance below is positive). The single crystal furnace controls the top lifting head to execute the falling action at a speed of 200mm / min, and then executes the lifting action, gradually increasing the speed and then decreasing the speed.

[0052] The control device suspends the gripped quartz bucket on a tungsten wire rope. During the suspension process, it is necessary to ensure that the tungsten wire rope has sufficient travel (6 meters) and that the suspension position is accurate. The position and status of the tungsten wire rope are monitored in real time by sensors or displacement encoders to ensure that the process is stable and reliable.

[0053] The height of the quartz drum and the height of the material hanging device can be adjusted according to the site conditions. The lifting / falling speed of the material drum can also be adjusted appropriately.

[0054] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0055] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An automatic charging system for a single crystal furnace barrel, characterized in that: include: The outer shell (1) has a cavity inside, and the outer shell (1) has a movable groove (101) and an opening (102) on its side; The lifting assembly (2) includes a limiting pin (201), a spring rod (202), and a movable arm (203). The limiting pin (201) is movably connected to the outer shell (1) via a rotating shaft. One end of the spring rod (202) is movably connected to the limiting pin (201). The spring rod (202) is movably connected to the movable arm (203) via a movable shaft (205). The movable arm (203) has a shaft groove (204) that matches the movable shaft (205). A spring (206) is fixedly connected to the inner cavity of the movable arm (203). The other end of the spring rod (202) is fixedly connected to the spring (206). Guide cover (3), the top of the guide cover (3) is threadedly connected to the outer shell (1), and the top of the guide cover (3) is in communication with the outer shell (1); The bottom of the material cylinder connector (4) is fixedly connected to the quartz stone cylinder, and the other end of the material cylinder connector (4) can be connected to the lifting assembly (2).

2. The automatic charging system for a single crystal furnace barrel according to claim 1, characterized in that: The outer shell (1) has multiple through holes from top to bottom.

3. The automatic charging system for a single crystal furnace barrel according to claim 1, characterized in that: The top of the outer casing (1) has an internal thread (103).

4. The automatic charging system for a single crystal furnace barrel according to claim 1, characterized in that: The number of the limiting pin (201), spring pressure rod (202), and movable arm (203) is four.

5. The automatic charging system for a single crystal furnace barrel according to claim 1, characterized in that: The barrel connector (4) includes a first rod (401), a first cone (402) is fixedly connected to the top of the first rod (401), the top and bottom of the first cone (402) are both conical, a second rod (403) is fixedly connected to the top of the first cone (402), and a second cone (404) is fixedly connected to the top of the second rod (403), the top of the second cone (404) is conical.

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