A quick-setting furnace multi-chamber continuous feeding mechanism and a feeding method

Abstract

The application discloses a kind of quick-setting furnace multi-chamber continuous feeding mechanism and feeding method, belong to vacuum melting technical field.The feeding mechanism includes by main chamber and vice chamber composition feeding chamber, main chamber is equipped with sealing door between vice chamber, and vice chamber is equipped with outer door;The volume of main chamber is greater than the volume of vice chamber, and the internal space of vice chamber is set as the rotating space without workbench in it;Workbench is the independent trolley structure that can reciprocate, can straight go and rotate, and multiple barrels are arranged along the direction of travel;Vice chamber is connected to vacuum system, and main chamber is connected to atmosphere maintaining system.When feeding, workbench enters vice chamber and is vacuumized, and then turns into main chamber and is replenished with air, and the barrels are switched by rotation to feed in turn.The application concentrates the rotation operation in main chamber, and vice chamber only acts as linear transition channel, greatly reduces the vacuum volume, shortens the feeding cycle time, and reduces the consumption of inert gas.

Description

Technical Field

[0001] This invention relates to the field of vacuum melting rapid solidification furnace technology, and in particular to a multi-cylinder continuous feeding mechanism and feeding method for a rapid solidification furnace. Background Technology

[0002] The melting and processing of magnetic materials is an important step in the production process. After melting and cooling, alloy sheets are obtained, which can then be processed in subsequent operations. Vacuum melting and rapid solidification furnaces are usually used for melting and processing.

[0003] In the NdFeB vacuum melting process, feeding the furnace is a crucial step in the production process. Currently, some feeding mechanisms used in production employ two cylinders placed one in front of the other on a forward-moving and rotatable worktable. The worktable feeds the two cylinders into the feeding chamber, and the position of the empty and full cylinders is exchanged by rotating the worktable to achieve continuous feeding. However, this structure requires the feeding chamber to be wide enough to allow the worktable to rotate with the two cylinders, resulting in a very large feeding chamber volume. The large feeding chamber space significantly increases the vacuuming and purging time for each feeding cycle, while also increasing the consumption of inert gas, reducing production efficiency, and increasing production costs.

[0004] There is currently no effective solution for optimizing the feeding chamber structure and reducing vacuuming and inflation time for the aforementioned rotating feeding method. Summary of the Invention

[0005] This invention provides a multi-cylinder continuous feeding mechanism and feeding method for a rapid condensing furnace, which can significantly reduce the vacuuming time and gas filling time of each feeding cycle, reduce the consumption of inert gas, and improve production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A multi-cylinder continuous feeding mechanism for a rapid solidification furnace includes a feeding chamber, which consists of a main chamber and a secondary chamber located in front of the main chamber. A closable, sealed door is provided between the main chamber and the secondary chamber. The main chamber is connected to the melting chamber of the rapid solidification furnace, and the secondary chamber has an openable, closable outer door. The volume of the main chamber is larger than that of the secondary chamber. The internal space of the secondary chamber is configured such that when a worktable carrying multiple cylinders enters the secondary chamber, the worktable has no rotational space within the secondary chamber. The worktable is an independent trolley structure capable of reciprocating between the secondary chamber and the main chamber. The worktable is configured to be able to move forward and rotate, with multiple cylinders arranged along the direction of travel on the worktable. The secondary chamber is connected to a vacuum system, and the main chamber is connected to an atmosphere maintenance system, which is used to fill the main chamber with protective gas.

[0007] Furthermore, the workbench carries two material cylinders, which are arranged one in front of the other on the workbench.

[0008] Furthermore, the main chamber is connected to the melting chamber of the rapid solidification furnace via a valve, and both the sealing door and the outer door are equipped with sealing structures.

[0009] Furthermore, the sub-chamber is also connected to an inflation system.

[0010] Furthermore, both the outer door and the sealing door adopt a lateral sliding opening and closing structure.

[0011] A method for continuous feeding of a multi-cylinder accelerator, employing the aforementioned continuous feeding mechanism for a multi-cylinder accelerator, includes the following steps: Step 1: Send the workbench carrying multiple material cylinders into the auxiliary chamber through the outer door of the auxiliary chamber, and then close the outer door; Step two: Vacuum the auxiliary chamber using the vacuum system; Step 3: After the vacuum level in the auxiliary chamber reaches the preset requirement, open the sealing door, send the workbench from the auxiliary chamber into the main chamber, and close the sealing door. Step four: Inflate the main chamber with protective gas to a preset pressure using the atmosphere maintenance system; Step 5: By rotating the workbench, the positions of the empty and full material cylinders are switched, and the material cylinders on the workbench are sequentially fed into the melting chamber of the rapid solidification furnace.

[0012] Furthermore, after the material is fed, the empty material cylinder is returned to the auxiliary chamber along with the worktable, the sealing door is closed, the outer door is opened, and the worktable is sent out.

[0013] Another method for continuous feeding of a multi-cylinder accelerator, using the aforementioned continuous feeding mechanism, includes the following steps: Step 1: Send the workbench carrying multiple material cylinders into the auxiliary chamber through the outer door of the auxiliary chamber, and then close the outer door; Step 2: Vacuum the sub-chamber using the vacuum system, and fill the sub-chamber with protective gas to a first preset pressure using the gas filling system. Step 3: Open the sealed door, send the workbench from the auxiliary chamber into the main chamber, and close the sealed door; Step 4: Detect the main chamber protective gas pressure. If it meets the preset pressure condition for feeding, proceed to step 5; otherwise, replenish the main chamber with protective gas to the second preset pressure through the atmosphere maintenance system. Step 5: By rotating the workbench, the positions of the empty and full material cylinders are switched, and the material cylinders on the workbench are sequentially fed into the melting chamber of the rapid solidification furnace.

[0014] In step four above, the relationship between the first preset pressure and the second preset pressure is not restricted. In a further preferred embodiment, the first preset pressure is less than or equal to the second preset pressure.

[0015] Furthermore, after the material is fed, the empty material cylinder is returned to the auxiliary chamber along with the worktable, the sealing door is closed, the outer door is opened, and the worktable is sent out. Beneficial effects

[0016] This invention divides the feeding chamber into a main chamber and a secondary chamber. The secondary chamber serves only as a transition channel for the straight-line entry and exit of the worktable, and its internal space does not need to accommodate the rotation of the worktable. Therefore, the volume of the secondary chamber can be significantly smaller than that of a traditional feeding chamber. In each feeding cycle, only the small-volume secondary chamber needs to be evacuated, which greatly shortens the evacuation time. More importantly, since only the atmosphere of the small-volume secondary chamber is broken in each cycle, under continuous production conditions, not only is the pressure replenishment time less, but the amount of inert gas saved is also considerable, which can significantly reduce production costs.

[0017] This invention provides two feeding methods. The feeding method with vacuuming only in the auxiliary chamber is simple, efficient, and consumes less gas, and is suitable for working conditions where the initial pressure in the main chamber is low. The feeding method with vacuuming in the auxiliary chamber and pre-charging reduces the opening pressure difference and reduces the atmosphere fluctuation in the main chamber by pre-charging, and is suitable for working conditions where a stable protective atmosphere has been established in the main chamber and atmosphere fluctuation needs to be strictly controlled. Users can choose flexibly according to actual process requirements, and it has a wide range of applications. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the multi-cylinder continuous feeding mechanism for the rapid condensing furnace of the present invention.

[0019] Figure 2 This is an internal schematic diagram of the multi-cylinder continuous feeding mechanism of the rapid condensing furnace of the present invention.

[0020] Figure 3 This is a top-view perspective diagram of the multi-cylinder continuous feeding mechanism for the rapid condensing furnace of the present invention.

[0021] Explanation of markings in the diagram: 1. Main chamber; 2. Secondary chamber; 3. Sealed door; 4. Outer door; 5. Workbench; 6. Material cylinder; 7. Vacuum system; 8. Gas filling system; 9. Atmosphere maintenance system; 10. Melting chamber; 11. Guide rail; 12. First drive mechanism; 13. Second drive mechanism. Detailed Implementation

[0022] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0023] like Figure 1 As shown, the multi-cylinder continuous feeding mechanism for a rapid solidification furnace provided by the present invention includes a feeding chamber, which consists of a main chamber 1 and a secondary chamber 2 located in front of the main chamber 1. A closable sealing door 3 is provided between the main chamber 1 and the secondary chamber 2. When the sealing door 3 is closed, the main chamber 1 and the secondary chamber 2 remain airtightly isolated. The main chamber 1 is connected to the melting chamber 10 of the rapid solidification furnace via a valve. The secondary chamber 2 is provided with an openable outer door 4 for the entry and exit of the workbench 5.

[0024] The volume of the main chamber 1 is larger than that of the auxiliary chamber 2. The internal space of the auxiliary chamber 2 is designed such that when the worktable 5 carrying two material cylinders 6 enters the auxiliary chamber 2, the worktable 5 has no room to rotate within the auxiliary chamber 2. In other words, the space of the auxiliary chamber 2 is only sufficient to accommodate the worktable 5 and the material cylinders 6 entering in a straight line, but not enough for the worktable 5 to rotate within the auxiliary chamber 2. This design allows the volume of the auxiliary chamber 2 to be significantly smaller than that of a traditional feeding chamber, thereby reducing the time required for vacuuming and the amount of gas consumed.

[0025] The auxiliary chamber 2 is connected to a vacuum system 7 for evacuating the interior of the auxiliary chamber 2, which can be achieved using a conventional vacuum pump assembly. Optionally, the auxiliary chamber 2 can also be connected to a gas filling system 8 for filling the auxiliary chamber 2 with a protective gas (such as argon), which can be achieved using conventional gas supply lines and valve assemblies. The main chamber 1 is connected to an atmosphere maintenance system 9 for filling the main chamber 1 with a protective gas to maintain the protective atmosphere within the main chamber 1. In actual smelting production, the main chamber 1 and the smelting chamber 10 are usually filled with a protective gas (argon) for smelting protection.

[0026] The worktable 5 is an independent trolley structure that can reciprocate between the auxiliary chamber 2 and the main chamber 1, and it is used to carry and transport the material cylinders 6. The worktable 5 is configured to be able to move forward and rotate, and the two material cylinders 6 are arranged on the worktable 5 along the direction of travel. Of course, as the optimal working mode, this embodiment only illustrates the case where the worktable 5 carries two material cylinders 6, and the two material cylinders 6 are arranged one in front of the other on the worktable 5. However, according to the purpose of this invention, as long as the material cylinders are arranged one in front of the other on the worktable, it is not excluded that more material cylinders, such as four, can be fed at once.

[0027] The rotation function of the workbench 5 is used to switch the front and rear positions of the two material cylinders 6 so that materials can be added to the melting chamber 10 in sequence. Both the walking drive and rotation drive of the workbench 5 can be implemented using conventional techniques in the art: the walking drive can use a motor to drive the wheels to move along a track, or a traction method such as a chain, lead screw, or cylinder; the rotation drive can use a motor in conjunction with a slewing bearing or a worm gear transmission. The above-mentioned drive methods are all conventional techniques in the art, and their specific structures do not affect the implementation of the main concept of this invention.

[0028] Specifically in this embodiment, such as Figures 1 to 3 As shown, guide rails 11 can be installed in the main chamber 1 and the auxiliary chamber 2. The worktable 5 moves along the guide rails 11 and passes through the outer door 4 and the sealed door 3 in sequence. To facilitate the smooth passage of the worktable 5 through the two doors, the guide rails 11 can be designed as a segmented structure at the door frame positions of the outer door 4 and the sealed door 3, that is, broken at the door frame, with guide plates or transition plates installed at the gaps to ensure that the wheels of the worktable 5 can smoothly cross over. The arrangement of the guide rails 11 is a conventional technical means in this field, and those skilled in the art can reasonably set it according to actual needs, as long as it can achieve linear guiding movement of the worktable 5.

[0029] Both the outer door 4 and the sealing door 3 adopt a lateral sliding opening and closing structure to avoid the overhead space occupied by the lifting door. Specifically, the outer door 4 is installed on the outer door frame of the auxiliary chamber 2 and is connected to a first drive mechanism 12, which drives the outer door 4 to slide horizontally (i.e., laterally, perpendicular to the travel direction of the workbench 5) to open and close the outer door 4. The sealing door 3 is installed on the door frame between the main chamber 1 and the auxiliary chamber 2 and is connected to a second drive mechanism 13, which drives the sealing door 3 to slide horizontally to open and close the sealing door 3. When the outer door 4 or the sealing door 3 is opened, the entire door slides to one side of the door frame, making way for the workbench 5 to pass through, with no obstructions at the doorway. The first drive mechanism 12 and the second drive mechanism 13 can be implemented using conventional linear drive devices in the art, such as cylinders, hydraulic cylinders, or motors with lead screw transmissions.

[0030] When the outer door 4 or the sealing door 3 is closed, the door body is embedded or pressed tightly against the door frame. Both the sealing door 3 and the outer door 4 are equipped with sealing structures (rubber sealing rings or metal sealing rings) to ensure airtightness when closed.

[0031] The aforementioned door structure and sealing structure are conventional technical means in the field of vacuum equipment. Those skilled in the art can implement them based on the description of this invention and common knowledge in the field, without any creative effort.

[0032] The working principle of this invention is briefly described as follows: In traditional designs, the worktable carrying two material cylinders into the feeding chamber needs to rotate and exchange positions. Therefore, the feeding chamber must provide sufficient rotation space, resulting in a large chamber volume and lengthy vacuuming and gas filling times. This invention divides the feeding chamber into a main chamber and a secondary chamber. The secondary chamber serves only as a transition channel, its space only needing to accommodate the worktable's straight-line entry and exit, without requiring rotation space. Therefore, the volume of the secondary chamber can be significantly reduced. The worktable's rotation operation takes place within the main chamber, which remains sealed during the feeding cycle, requiring only gas replenishment after each worktable entry. During each feeding cycle, only the small secondary chamber requires vacuuming, thereby significantly reducing time and gas consumption.

[0033] It should be noted that the specific implementation structure and operation process of feeding the material cylinder 6 on the workbench 5 into the melting chamber 10 of the rapid solidification furnace are existing technologies in the field, and this application does not make any improvements to them, but implements them in accordance with the conventional methods in the field. Specifically, after the workbench 5 rotates to switch the position of the material cylinder 6, the material cylinder 6 is lifted and moved to the feeding port above the melting chamber 10 by a hoisting mechanism (such as a pulley belt assembly or a lifting hook assembly) set in the main chamber 1. The bottom of the material cylinder 6 is provided with an openable and closable unloading door. When the material cylinder 6 is suspended above the feeding port, the unloading door opens under the action of the raw material gravity, and the raw material falls into the melting chamber 10 to complete the feeding; or, an external suspension mechanism can be used to remove the material cylinder 6 from the workbench 5 and move it above the melting chamber 10 for feeding. Various hoisting and feeding methods and material cylinder unloading structures are all conventional technical means in this field. For example, existing technologies such as CN121953663A, CN115014080A, CN222143735U, and CN205614027U can be referred to, and will not be elaborated here.

[0034] The feeding method of the present invention will be described below with reference to specific embodiments. Example 2

[0035] This embodiment provides a continuous feeding method for a multi-cylinder accelerator, employing the aforementioned feeding mechanism, and includes the following steps: Step 1: The worktable 5, carrying two fully loaded material cylinders 6, is fed into the auxiliary chamber 2 through the outer door 4, and the outer door 4 is closed. The two material cylinders 6 are arranged one in front of the other on the worktable 5. Specifically, at this time, the outer door 4 is laterally moved open under the drive of the first drive mechanism 12, and the worktable 5 enters the auxiliary chamber 2 along the guide rail 11. Subsequently, the outer door 4 is closed and sealed.

[0036] Step two: Vacuuming is performed on the secondary chamber 2 using the vacuum system 7. Because the secondary chamber 2 has a smaller volume, the time required to reach the preset vacuum level is significantly reduced.

[0037] Step 3: After the vacuum level in the auxiliary chamber 2 reaches the preset requirement, the second drive mechanism 13 drives the sealing door 3 to move laterally and open, sending the worktable 5 from the auxiliary chamber 2 into the main chamber 1 along the guide rail 11. Then the sealing door 3 closes and seals.

[0038] Step 4: Use the atmosphere maintenance system 9 to fill the main chamber 1 with a protective gas (such as argon) to the preset pressure (i.e. the working pressure required for melting).

[0039] Step 5: By rotating the workbench 5, the positions of the empty and full charge cylinders are switched, and the charge cylinders 6 on the workbench 5 are sequentially fed into the melting chamber 10 of the rapid solidification furnace. After the two full charge cylinders have been fed in sequence, they become empty charge cylinders. After the feeding is completed, the empty charge cylinders are returned to the auxiliary chamber 2 along with the workbench 5, the sealing door 3 is closed, the outer door 4 is opened, and the workbench 5 is sent out.

[0040] In this embodiment, only the small space of the auxiliary chamber 2 needs to be evacuated each time, and the gas filling operation is completed in the main chamber 1. Compared with the traditional large single-chamber feeding method, this embodiment saves a lot of vacuuming time and gas filling time, and reduces gas consumption.

[0041] This embodiment is applicable to working conditions where the initial pressure in the main chamber 1 is low (close to vacuum). After the auxiliary chamber 2 is evacuated, the door is opened directly, and the workbench enters the main chamber 1 and is uniformly replenished with gas to the working pressure, eliminating the need for the auxiliary chamber filling process. Example 3

[0042] This embodiment provides another method for continuous feeding of a multi-cylinder rapid-setting furnace, using the above-mentioned feeding mechanism, including the following steps: Step 1: The workbench 5, carrying two fully loaded material cylinders 6, is sent into the auxiliary chamber 2 through the outer door 4, and the outer door 4 is closed. The two material cylinders 6 are arranged one in front of the other on the workbench 5.

[0043] Step two: Vacuum the auxiliary chamber 2 using the vacuum system 7, and fill the auxiliary chamber 2 with protective gas to the first preset pressure using the gas filling system 8. The first preset pressure is usually less than or lower than the working pressure of the main chamber 1 (the second preset pressure). For example, it can be set to pre-fill the auxiliary chamber 2 to an intermediate pressure value after vacuuming, so as to reduce the amount of protective gas flowing from the main chamber 1 into the auxiliary chamber 2 when the sealing door 3 is opened.

[0044] Step 3: Open the sealed door 3, send the workbench 5 from the auxiliary chamber 2 into the main chamber 1, and close the sealed door 3.

[0045] Step four: Detect the protective gas pressure in the main chamber. If it meets the preset pressure condition for feeding (not lower than the second preset pressure mentioned later), proceed to step five. Otherwise, replenish the protective gas in the main chamber 1 through the atmosphere maintenance system 9 to the second preset pressure (i.e., the working pressure required for smelting). Here, the second preset pressure is the minimum pressure threshold required for feeding.

[0046] Step 5: By rotating the workbench 5, the positions of the empty and full charge cylinders are switched, and the charge cylinders 6 on the workbench 5 are sequentially fed into the melting chamber 10 of the rapid solidification furnace. After the two full charge cylinders have been fed in sequence, they become empty charge cylinders. After the feeding is completed, the empty charge cylinders are returned to the auxiliary chamber 2 along with the workbench 5, the sealing door 3 is closed, the outer door 4 is opened, and the workbench 5 is sent out.

[0047] This embodiment uses a pre-filling operation to ensure that the auxiliary chamber 2 has a certain pressure before opening the sealing door 3, reducing the amount of protective gas lost from the main chamber 1 when the door is opened, and facilitating the main chamber 1 to quickly reach the working pressure. In particular, the method of pre-filling the auxiliary chamber 2 to an intermediate pressure value after evacuation, compared to the method of requiring the auxiliary chamber to be fully filled to the working pressure, allows for control of the auxiliary chamber filling time as needed.

[0048] This embodiment is applicable to working conditions where the main chamber 1 already has a certain protective gas pressure and strict control of atmosphere fluctuations is required. After the auxiliary chamber 2 is evacuated and pre-pressurized before opening the door, the loss of gas from the main chamber 1 to the auxiliary chamber 2 can be controlled, which is conducive to the main chamber 1 quickly returning to the working pressure.

[0049] It should be noted that users can flexibly choose the above two feeding methods as the stable working methods used in production according to the initial state of the main chamber 1 and the process requirements. However, under the continuous working conditions of dynamic changes in air pressure, or even if the air pressure is relatively stable but for diversified production scheduling schemes, the working mode is automatically selected by the necessary detection and control system, as will be explained in the following embodiments. Example 4

[0050] This embodiment provides a continuous multi-cylinder feeding method for a rapid condensing furnace. The method employs the aforementioned feeding mechanism and includes a detection and control system. This system detects the real-time pressure within the main chamber and automatically selects the feeding mode based on the real-time pressure. The detection and control system uses a pressure sensor and a control unit. The pressure sensor is located within the main chamber and detects the real-time pressure, generating a pressure signal that is output to the control unit. The control unit coordinates the operation of each component based on a preset pressure threshold P0. P0 is a threshold for determining whether an effective protective atmosphere has been established in the main chamber. The second preset pressure is the working pressure threshold required to perform feeding. P0 is typically less than the second preset pressure. The corresponding feeding method steps are as follows: Step 1: Send the workbench 5, which carries multiple material cylinders, into the auxiliary chamber 2 through the outer door 4, and close the outer door 4; Step 2: The control unit acquires the real-time pressure P in the main chamber 1 detected by the pressure sensor, and compares the real-time pressure P with a preset pressure threshold P0. Step 3: Automatically select the feeding mode based on the comparison results: If P ≤ P0, the control unit determines that the main chamber 1 is in a low-pressure state and executes the first feeding mode: The auxiliary chamber 2 is evacuated using the vacuum system 7; Once the vacuum level in the auxiliary chamber 2 reaches the preset requirement, open the sealing door 3, send the workbench 5 from the auxiliary chamber 2 into the main chamber 1, and close the sealing door 3. The atmosphere maintenance system 9 fills the main chamber 1 with protective gas to the preset pressure; By rotating the workbench 5, the positions of the empty and full material cylinders are switched, and the material cylinders 6 on the workbench 5 are sequentially fed into the melting chamber 10 of the rapid solidification furnace. If P > P0, the control unit determines that the main chamber 1 is under high pressure (i.e., a stable protective atmosphere has been established) and executes the second feeding mode: The auxiliary chamber 2 is evacuated by the vacuum system 7, and protective gas is injected into the auxiliary chamber 2 by the gas filling system 8 to a first preset pressure, the first preset pressure being less than or equal to the real-time pressure P of the main chamber 1. Open the sealed door 3, send the workbench 5 from the auxiliary chamber 2 into the main chamber 1, and close the sealed door 3; The atmosphere maintenance system 9 replenishes the protective gas in the main chamber 1 to the second preset pressure; By rotating the workbench 5, the positions of the empty and full material cylinders are switched, and the material cylinders 6 on the workbench 5 are sequentially fed into the melting chamber 10 of the rapid solidification furnace.

[0051] Step 4: After feeding is completed, return the empty material cylinder to the auxiliary chamber 2 along with the workbench 5, close the sealing door 3, open the outer door 4, and send the workbench 5 out.

[0052] The pressure threshold P0 can range from 0.02 MPa to 0.04 MPa (gauge pressure). When the real-time pressure P in the main chamber 1 is lower than or equal to P0, it indicates that an effective protective atmosphere has not yet been established in the main chamber 1. In this case, the first feeding mode is adopted, which has the simplest process and the highest efficiency. When the real-time pressure P in the main chamber 1 is higher than P0, it indicates that the main chamber 1 is filled with protective gas and is in a positive pressure protection state. In this case, the second feeding mode is adopted. By pre-filling the auxiliary chamber, the gas loss in the main chamber 1 is reduced when the door is opened, avoiding large fluctuations in the pressure of the main chamber 1 and ensuring the stability of the smelting process. The first preset pressure is also dynamically set according to the real-time pressure P of the main chamber 1. The optimal preset pressure difference between the main chamber 1 and the real-time pressure P is in the range of 0.005 MPa to 0.015 MPa. That is, the auxiliary chamber 2 is pre-filled to a level slightly lower than the real-time pressure of the main chamber 1. This can reduce the influx of gas from the main chamber 1 to the auxiliary chamber 2 when the door is opened, and also prevent the main chamber 1 from being impacted by the excessive pressure in the auxiliary chamber 2 when the door is opened.

[0053] In this embodiment, the control unit can be a programmable logic controller (PLC) or an industrial computer, and the pressure sensor can be a conventional resistance strain gauge or capacitive pressure sensor, both of which are conventional technical means in this field.

[0054] This embodiment achieves automatic selection of feeding mode by setting up a detection and control system. When the main chamber 1 is in a low-pressure state, the first feeding mode is automatically adopted to ensure feeding efficiency. When a stable protective atmosphere has been established in the main chamber 1, the second feeding mode is automatically switched to ensure atmosphere stability. This allows the feeding mechanism of the present invention to adapt to different working conditions, which not only gives full play to the advantages of the two feeding methods, but also reduces the technical threshold and labor intensity of operators, and further improves the intelligence level of the equipment.

[0055] This solution is also applicable to the self-adjustment of the working mode when a piece of equipment faces diverse production scheduling schemes, that is, when the pressure conditions of the main chamber change with the product production process. The advantages will not be repeated here.

[0056] The above description is merely a preferred embodiment of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A multi-cylinder continuous feeding mechanism for a rapid condensing furnace, comprising a feeding chamber, characterized in that, The charging chamber consists of a main chamber and a secondary chamber located in front of the main chamber. A closable and sealed door is provided between the main chamber and the secondary chamber. The main chamber is connected to the melting chamber of the rapid solidification furnace, and the secondary chamber is provided with an openable and closable outer door. The volume of the main chamber is larger than the volume of the auxiliary chamber. The internal space of the auxiliary chamber is configured such that when the worktable carrying multiple material cylinders enters the auxiliary chamber, the worktable does not have rotation space within the auxiliary chamber. The worktable is an independent trolley structure that can reciprocate between the auxiliary chamber and the main chamber. The worktable is configured to be able to move forward and rotate, and multiple material cylinders are arranged on the worktable along the direction of travel. The auxiliary chamber is connected to a vacuum system, and the main chamber is connected to an atmosphere maintenance system, which is used to fill the main chamber with protective gas.

2. The multi-cylinder continuous feeding mechanism for a rapid condensing furnace according to claim 1, characterized in that, The workbench carries two material cylinders, which are arranged one in front of the other on the workbench.

3. The multi-cylinder continuous feeding mechanism for a rapid condensing furnace according to claim 1, characterized in that, The main chamber is connected to the melting chamber of the rapid solidification furnace via a valve, and both the sealing door and the outer door are equipped with sealing structures.

4. The multi-cylinder continuous feeding mechanism for a rapid condensing furnace according to claim 1, characterized in that, The secondary chamber is also connected to an inflation system.

5. The multi-cylinder continuous feeding mechanism for a rapid condensing furnace according to claim 1, characterized in that, Both the outer door and the sealed door adopt a lateral sliding opening and closing structure.

6. A method for continuous feeding of a multi-cylinder rapid-setting furnace, employing the continuous feeding mechanism for a multi-cylinder rapid-setting furnace as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Step 1: Send the workbench carrying multiple material cylinders into the auxiliary chamber through the outer door of the auxiliary chamber, and then close the outer door; Step two: Vacuum the auxiliary chamber using the vacuum system; Step 3: After the vacuum level in the auxiliary chamber reaches the preset requirement, open the sealing door, send the workbench from the auxiliary chamber into the main chamber, and close the sealing door. Step four: Inflate the main chamber with protective gas to a preset pressure using the atmosphere maintenance system; Step 5: By rotating the workbench, the positions of the empty and full material cylinders are switched, and the material cylinders on the workbench are sequentially fed into the melting chamber of the rapid solidification furnace.

7. The continuous feeding method for a multi-cylinder accelerator according to claim 6, characterized in that, After feeding is completed, the empty material cylinder is returned to the auxiliary chamber along with the worktable, the sealing door is closed, the outer door is opened, and the worktable is sent out.

8. A method for continuous feeding of a multi-cylinder rapid-setting furnace, employing the continuous feeding mechanism for a multi-cylinder rapid-setting furnace as described in claim 4, characterized in that, Includes the following steps: Step 1: Send the workbench carrying multiple material cylinders into the auxiliary chamber through the outer door of the auxiliary chamber, and then close the outer door; Step 2: Vacuum the sub-chamber using the vacuum system, and fill the sub-chamber with protective gas to a first preset pressure using the gas filling system. Step 3: Open the sealed door, send the workbench from the auxiliary chamber into the main chamber, and close the sealed door; Step 4: Detect the main chamber protective gas pressure. If it meets the preset pressure condition for feeding, proceed to step 5; otherwise, replenish the main chamber with protective gas to the second preset pressure through the atmosphere maintenance system. Step 5: By rotating the workbench, the positions of the empty and full material cylinders are switched, and the material cylinders on the workbench are sequentially fed into the melting chamber of the rapid solidification furnace.

9. The continuous feeding method for a multi-cylinder rapid-setting furnace according to claim 8, characterized in that, The first preset pressure is less than or equal to the second preset pressure.

10. The continuous feeding method for a multi-cylinder rapid-setting furnace according to claim 8, characterized in that, After feeding is completed, the empty material cylinder is returned to the auxiliary chamber along with the worktable, the sealing door is closed, the outer door is opened, and the worktable is sent out.

Images