An automatic switching type discharging device

Abstract

The utility model relates to the technical field of stove production equipment, concretely relates to a kind of automatic switching formula discharge device, including main furnace chamber, at least two discharge chambers and switching drive mechanism;The shape of main furnace chamber bottom and discharge chamber top is matched, the switching drive mechanism is connected with the discharge chamber, the switching drive mechanism drives discharge chamber to move to and main furnace chamber are docked or separate from main furnace chamber.The utility model can realize that discharge chamber is alternately docked main furnace chamber by at least two discharge chambers and switching drive mechanism cooperation, when one discharge chamber completes product reception and isolated material taking, another empty load discharge chamber can be quickly docked with main furnace chamber, and main furnace chamber can continuously process product without interrupting process environment, avoid the production interruption of traditional stove due to discharging, effectively improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of furnace platform production equipment, specifically to an automatic switching discharge device. Background Technology

[0002] In the industrial manufacturing sector, furnaces, as key equipment for achieving material thermal processing and core process transformation, are widely used in critical production scenarios such as semiconductor silicon wafer annealing, metal component heat treatment, ceramic green body sintering, and new energy material synthesis. In the complete production process of a traditional furnace, the product must undergo a strict process cycle within the main furnace chamber. Taking semiconductor silicon wafer production as an example, the silicon wafer needs to undergo high-temperature annealing at 1000-1200℃ in the main furnace chamber, which must be maintained for 10... -4 A high vacuum environment at the Pa level is used to isolate oxygen and prevent defects caused by oxidation on the silicon wafer surface. Similarly, in the heat treatment process of metal components, the main furnace chamber needs to be filled with inert or reducing protective gases such as nitrogen and hydrogen, while precisely controlling the heating rate (e.g., 5°C / min) and holding time (e.g., 2 hours) to ensure uniform internal metal structure and improve the hardness and toughness of the components. These processes place extremely high demands on the environmental stability of the main furnace chamber; any fluctuation in environmental parameters can lead to substandard product performance or even scrapping.

[0003] After the product completes its predetermined process in the main furnace chamber, it must be transferred to the next production stage via a discharge operation. Since the main furnace chamber and the discharge structure are usually integrated, the main furnace chamber's production process must be interrupted during discharge (e.g., breaking the vacuum, cooling, etc.). The main furnace chamber's operating environment is then restored after the product is removed, resulting in a production interruption. This problem directly leads to three major drawbacks: first, production efficiency is significantly reduced, and the proportion of downtime increases; second, production capacity is difficult to increase, limiting the number of products that can be produced per unit time; and third, energy consumption increases, as repeated restoration of the main furnace chamber's operating conditions requires additional energy. These problems severely restrict the continuity and economy of furnace production, thus necessitating a discharge solution that avoids production interruptions. Utility Model Content

[0004] To address the problems of production interruption, low efficiency, limited capacity, and high energy consumption during material discharge caused by the integrated design of the main furnace chamber and the discharge structure in traditional furnace production, this utility model provides an automatic switching discharge device. By setting up multiple independent discharge chambers and cooperating with a switching drive mechanism, the discharge chambers and the main furnace chamber can be alternately connected. The discharge operation can be completed without disrupting the process environment of the main furnace chamber, thereby achieving continuous furnace production and solving the pain points of traditional furnace production.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: an automatic switching discharge device, comprising a main furnace chamber, at least two discharge chambers, and a switching drive mechanism; the bottom of the main furnace chamber and the top of the discharge chamber are matched in shape, the switching drive mechanism is connected to the discharge chamber, and the switching drive mechanism drives the discharge chamber to move to dock with or detach from the main furnace chamber.

[0006] Furthermore, the switching drive mechanism is a wheel drive mechanism or a linear guide drive mechanism.

[0007] Furthermore, the wheel drive mechanism includes a rotating gear meshing with a rotating gear disk, a drive motor for controlling the rotation of the gear is provided on one side of the gear, and the discharge chambers are evenly arranged on the rotating gear disk.

[0008] Furthermore, the linear guide drive mechanism includes a rack and a gear meshing with the rack, a drive motor for controlling the rotation of the gear is provided on one side of the gear, and the discharge chambers are evenly arranged on the rack.

[0009] Furthermore, the discharge chambers are evenly distributed along the movement trajectory of the switching drive mechanism.

[0010] Furthermore, an isolation valve is installed at the bottom of the main furnace chamber, and a sealing flange is installed at the top of the discharge chamber.

[0011] Furthermore, the isolation valve is a baffle valve.

[0012] The beneficial effects achieved by this utility model are as follows: 1. This utility model, through the cooperation of at least two discharge chambers and a switching drive mechanism, enables the discharge chambers to alternately connect with the main furnace chamber. When one discharge chamber completes product reception and isolates the material, the other empty discharge chamber can quickly connect with the main furnace chamber. The main furnace chamber can continue to process products without interrupting the process environment, avoiding production interruptions caused by material discharge in traditional furnaces and effectively improving production efficiency.

[0013] 2. The main furnace chamber of this utility model can operate continuously without waiting for the material discharge operation to be completed before starting the next batch of production. The production batches per unit time are no longer restricted by the material discharge process, which can give full play to the processing capacity of the furnace and break through the capacity limitation of traditional furnaces.

[0014] 3. This utility model eliminates the need for repeated damage and restoration of the main furnace chamber's process environment, reducing the ineffective operation of equipment such as main furnace chamber heating, vacuuming, and gas regulation, and lowering additional energy consumption; at the same time, it avoids the wear and tear caused by frequent start-ups and shutdowns of related equipment in the main furnace chamber, extending equipment lifespan and reducing maintenance costs.

[0015] 4. The switching drive mechanism of this utility model includes two types: wheel type and linear rail type. The appropriate installation method can be selected according to the workshop space layout, which improves the compatibility of the device with furnace production scenarios in multiple fields. Attached Figure Description

[0016] Figure 1 This is a top view of the overall structure of this utility model; Figure 2 This is the main view of the overall structure of this utility model.

[0017] The markings in the diagram are as follows: 1. Main furnace chamber; 2. Discharge chamber; 3. Rotary gear disc; 4. Gear; 5. Drive motor; 6. Isolation valve; 7. Sealing flange. Detailed Implementation

[0018] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automatic switching discharge device of this utility model. Example

[0019] An automatic switching discharge device includes a main furnace chamber 1, four discharge chambers 2, and a switching drive mechanism. The bottom of the main furnace chamber 1 matches the top shape of the discharge chamber 2. The switching drive mechanism is connected to the discharge chamber 2. The switching drive mechanism drives the discharge chamber 2 to move to dock with or detach from the main furnace chamber 1. An isolation valve 6 is provided at the bottom of the main furnace chamber 1, and a sealing flange 7 is provided at the top of the discharge chamber 2.

[0020] The main furnace chamber 1 is a cylindrical vacuum cavity made of 304 stainless steel. It is equipped with a vacuum unit and electric heating tubes. The bottom of the main furnace chamber 1 is provided with a docking interface, and an isolation valve 6 is fixedly installed at the interface by bolts. The isolation valve 6 is a baffle valve.

[0021] There are a total of 4 discharge chambers, which are made of 304 stainless steel. The top is welded with a fixed sealing flange 7. The diameter of the sealing flange 7 matches the diameter of the bottom docking interface of the main furnace chamber 1. The flange face has a sealing groove, and the groove is embedded with a nitrile rubber sealing gasket. The 4 discharge chambers 2 are evenly fixed to the edge of the rotating toothed disc 3 by bolts. The central angle between adjacent discharge chambers 2 is 90°.

[0022] The rotating gear disk 3 is made of 304 stainless steel. The edge of the rotating gear disk 3 is machined with a gear ring, which meshes with the gear 4. The gear 4 is connected to the output shaft of the drive motor 5 through a coupling. The drive motor 5 is a servo drive motor, which is fixed to the motor bracket on the ground by bolts. The rotating gear disk 3 is connected to the bearing seat through the central shaft. The bearing seat is fixed to the ground to ensure that the rotating gear disk 3 can rotate smoothly.

[0023] The working process of this utility model is as follows: In the initial state, the servo drive motor 5 controls the gear 4 to rotate, which drives the rotating gear disk 3 to rotate, so that one of the discharge chambers 2 moves to the bottom of the main furnace chamber 1, ensuring that the sealing flange 7 at the top of the discharge chamber 2 is aligned with the isolation valve 6 at the bottom of the main furnace chamber 1, the sealing flange 7 and the isolation valve 6 are tightly fitted, and the nitrile rubber sealing gasket achieves initial sealing.

[0024] Open the valve plate of isolation valve 6 to connect the main furnace chamber 1 and the discharge chamber 2. Start the conveying mechanism in the main furnace chamber 1 to transport the products that have completed high-temperature annealing to the discharge chamber 2.

[0025] After the product is conveyed, the valve plate of the isolation valve 6 is closed to cut off the passage between the main furnace chamber 1 and the discharge chamber 2. The main furnace chamber 1 maintains the process environment and continues to process the next batch of products without interrupting the process.

[0026] Normal pressure gas is introduced into the discharge chamber 2 to break the vacuum. After the pressure is balanced, the discharge port of the discharge chamber 2 is opened, the internal product is taken out and the inner wall of the discharge chamber 2 is cleaned.

[0027] After cleaning, close the material outlet of discharge chamber 2, start the servo drive motor 5, drive gear 4 and rotating gear disk 3 to rotate 90°, move the next empty discharge chamber 2 to the bottom of the main furnace chamber 1, repeat the above process, realize the alternating docking and discharge of 4 discharge chambers 2, and ensure continuous production of the main furnace chamber 1. Example

[0028] An automatic switching discharge device includes a main furnace chamber 1, four discharge chambers 2, and a switching drive mechanism. The bottom of the main furnace chamber 1 matches the top shape of the discharge chamber 2. The switching drive mechanism is connected to the discharge chamber 2. The switching drive mechanism drives the discharge chamber 2 to move to dock with or detach from the main furnace chamber 1. An isolation valve 6 is provided at the bottom of the main furnace chamber 1, and a sealing flange 7 is provided at the top of the discharge chamber 2.

[0029] The main furnace chamber 1 is a square high-temperature cavity, which is equipped with electric heating wires and a nitrogen gas inlet system. The bottom of the main furnace chamber 1 is provided with a docking interface, and an isolation valve 6 is fixedly installed at the interface by bolts. The isolation valve 6 is a square baffle valve.

[0030] There are two discharge chambers 2, which are made of 304 stainless steel. The top is welded with a fixed sealing flange 7. The flange face has a sealing groove, and a graphite sealing gasket is embedded in the groove. The two discharge chambers 2 are respectively fixed to two sliders by bolts. The sliders slide with the linear guide rail. The linear guide rail is fixed to the guide rail bracket on the ground by bolts.

[0031] The rack is fixed to the sides of the two sliders by bolts, and the rack meshes with the gear 4; the gear 4 is connected to the output shaft of the drive motor 5 through a coupling; the drive motor 5 is a servo drive motor equipped with a servo driver, and the drive motor 5 is fixed to the side of the guide rail bracket by bolts. The rotation of the output shaft of the drive motor 5 can be converted into linear movement of the rack, thereby driving the slider and the discharge chamber 2 to move along the guide rail. The moving speed can be adjusted by the servo driver.

[0032] The working process of this utility model is as follows: In the initial state, the servo drive motor 5 controls the gear 4 to rotate, which drives the rack and slider to move along the linear guide rail, so that one of the discharge chambers 2 moves to the bottom of the main furnace chamber 1, ensuring that the sealing flange 7 at the top of the discharge chamber 2 is aligned with the isolation valve 6 at the bottom of the main furnace chamber 1, and the graphite sealing gasket is in contact with the isolation valve 6 to achieve sealing.

[0033] Open the valve plate of isolation valve 6 to connect the main furnace chamber 1 and the discharge chamber 2. Start the conveying mechanism in the main furnace chamber 1 to transport the sintered product to the discharge chamber 2.

[0034] After the product is delivered, the valve plate of isolation valve 6 is closed, and the main furnace chamber 1 maintains a nitrogen atmosphere and process temperature to continue sintering the next batch of products without interruption.

[0035] Open the exhaust valve of discharge chamber 2 to release the internal nitrogen to normal pressure, open the material outlet of discharge chamber 2, take out the product and clean the residual impurities in discharge chamber 2.

[0036] After cleaning, close the material inlet of discharge chamber 2, start the servo drive motor 5, drive gear 4, rack and slider to move along the guide rail, move the other unloaded discharge chamber 2 to the bottom of the main furnace chamber 1, repeat the above steps to realize the alternating docking and discharge of the two discharge chambers 2, and ensure the continuous operation of the main furnace chamber 1.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic switching discharge device, characterized in that: It includes a main furnace chamber, at least two discharge chambers, and a switching drive mechanism; the bottom of the main furnace chamber matches the top shape of the discharge chamber, the switching drive mechanism is connected to the discharge chamber, and the switching drive mechanism drives the discharge chamber to move to dock with or detach from the main furnace chamber.

2. The automatic switching discharge device according to claim 1, characterized in that: The switching drive mechanism is either a wheel drive mechanism or a linear guide drive mechanism.

3. The automatic switching discharge device according to claim 2, characterized in that: The wheel drive mechanism includes a rotating gear that meshes with the rotating gear, a drive motor that controls the rotation of the gear is provided on one side of the gear, and the discharge chambers are evenly arranged on the rotating gear.

4. The automatic switching discharge device according to claim 2, characterized in that: The linear guide drive mechanism includes a rack and a gear meshing with the rack. A drive motor for controlling the rotation of the gear is provided on one side of the gear. The discharge chambers are evenly arranged on the rack.

5. The automatic switching discharge device according to claim 1, characterized in that: The discharge chambers are evenly distributed along the movement trajectory of the switching drive mechanism.

6. The automatic switching discharge device according to claim 1, characterized in that: An isolation valve is installed at the bottom of the main furnace chamber, and a sealing flange is installed at the top of the discharge chamber.

7. The automatic switching discharge device according to claim 6, characterized in that: The isolation valve is a baffle valve.

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