A glove box device for stripping sintered neodymium-iron-boron compacts into a furnace

Abstract

The utility model relates to sintered neodymium iron boron pressure blank technical field, and disclose a kind of sintered neodymium iron boron pressure blank stripping into furnace glove box device, including turnover box car box, and hydraulic elevator is fixedly installed in turnover box car box cavity;Stripping box body, stripping box body cavity is provided with stripping box track;Oxygen exhaust box body, oxygen exhaust box body cavity is provided with oxygen exhaust box track;Two groups of oxygen exhaust box body and stripping box body are around turnover box car box and present axis symmetry state.The application quintuple box body glove box increases the oxygen exhaust box body of both sides, can speed up oxygen exhaust time, make inert gas in the whole box interior evenly distributed, and pressure blank is not easy to be subjected to oxygen, simultaneously with stripping box connection increases operating space, increases oxygen exhaust box track, stripping box track and the hydraulic elevator in turnover car box interior, the conveying of pressure blank is facilitated, adjusts elevator height, and it is convenient for staff to lay material operation, overall operation process saves a lot of time compared with before, and pressure blank is not easy to appear oxidation phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of sintered NdFeB compact technology, and in particular to a glove box device for peeling and feeding sintered NdFeB compacts into the furnace. Background Technology

[0002] Existing technology for sintering NdFeB billets typically employs a three-box glove box, consisting of two side stripping boxes and a central movable turnover cart. During glove box stripping, the isostatically pressed billets are first placed into the side boxes, and the graphite boxes are placed into the central movable turnover cart. The glove box is then filled with inert protective gas. First, the outer packaging bags are removed from the side boxes. Then, the operator arranges the graphite boxes placed in the central movable turnover cart, removes the inner packaging bags, stacks the billets in the graphite boxes, and finally, the movable turnover cart is connected to the sintering feed cart for transfer to the sintering furnace.

[0003] The problem encountered during the operation is that neodymium iron boron material is highly reactive and easily oxidizes when exposed to oxygen. The product needs to have its outer packaging bag removed inside the glove box, followed by the removal of the inner packaging bag, and then placed in the sintering graphite box. Finally, the sintering box with the pressed blank is transported to the sintering furnace using a mobile transfer cart. This means that the operation time inside the glove box is long. However, the existing glove box has a long oxygen venting time and a narrow operating space. Therefore, the long operation time increases the possibility of oxidation of the pressed blank, which affects the performance of the subsequent products. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a glove box device for stripping and feeding sintered NdFeB compacts into the furnace, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A glove box device for stripping and feeding sintered NdFeB billets into a furnace includes: a turnover box carriage, with casters fixedly installed at all four corners of the bottom of the turnover box carriage, which is placed on the ground by the casters; tempered glass windows at both the front and rear ends of the turnover box carriage, with multiple sets of turnover box flanges running through the tempered glass windows; a hydraulic lift fixedly installed inside the turnover box carriage cavity; two sets of stripping boxes, located on both sides of the turnover box carriage, with stripping box tracks inside the stripping box cavity; and two sets of oxygen venting boxes, located on the side away from the two sets of stripping boxes, with oxygen venting box tracks inside the oxygen venting box cavity; the two sets of oxygen venting boxes and the stripping boxes are axially symmetrical around the turnover box carriage, and directional pulleys are fixedly installed at the bottom of both the oxygen venting boxes and the stripping boxes.

[0006] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, tracks are fixedly installed on the ground below the two sets of oxygen venting boxes and stripping boxes, and the directional pulleys at the bottom of the oxygen venting boxes and stripping boxes are movably engaged with the corresponding tracks.

[0007] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, a pneumatic locking mechanism is provided between the oxygen venting box and the stripping box on the same side. A switch button is provided at the front end of the pneumatic locking mechanism. The oxygen venting box and the stripping box can be connected through the pneumatic locking mechanism. A vacuum pump and an inert gas cylinder are provided on one side of the oxygen venting box.

[0008] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, pneumatic sealing doors are provided between the turnover box car and the two sets of stripping box tracks, and the turnover box car and the two sets of stripping box tracks can be connected through the pneumatic sealing doors.

[0009] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, tempered glass is installed on both the front and rear sides of the two sets of stripping box tracks, and multiple sets of stripping box flanges are provided through the tempered glass windows.

[0010] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, both the oxygen venting box and the stripping box are fixedly installed with horizontal platforms, and the oxygen venting box track and the stripping box track are installed on the corresponding platforms.

[0011] According to the glove box device for stripping and feeding sintered NdFeB billets into the furnace, multiple graphite boxes are placed on the top of the hydraulic lift.

[0012] This utility model provides a glove box device for stripping and feeding sintered NdFeB billets into the furnace. It has the following advantages: The five-unit glove box of this application adds oxygen venting boxes on both sides, which can accelerate the oxygen venting time and ensure a uniform distribution of inert gas throughout the box, making the billets less susceptible to oxygen. Simultaneously, the connection with the stripping box increases the operating space. The addition of oxygen venting box tracks, stripping box tracks, and a hydraulic lift inside the transfer cart facilitates the conveying of the billets. Adjusting the height of the lift facilitates the worker's material handling operation. The overall operation process saves a significant amount of time compared to previous methods, and the billets are less prone to oxidation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the glove box device for stripping and feeding sintered NdFeB blanks into the furnace according to the present invention. Figure 2 This is a cross-sectional structural schematic diagram of a glove box device for stripping and feeding sintered NdFeB blanks into a furnace according to the present invention. Figure 3 This is a schematic diagram of the internal structure of the oxygen venting chamber of a glove box device for stripping and feeding sintered NdFeB billets into a furnace, according to the present invention.

[0014] Legend: 11. Oxygen venting box; 12. Oxygen venting box track; 13. Pneumatic door locking mechanism; 14. Material stripping box; 15. Material stripping box track; 16. Turnover box carriage; 17. Hydraulic lift; 18. Track; 19. Pneumatic sealing door; 20. Material stripping box flange; 21. Turnover box flange; 22. Platform. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-3 As shown, this utility model is a glove box device for stripping and feeding sintered NdFeB billets into the furnace. It includes a turnover box 16, with casters fixedly installed at each of the four corners of the bottom of the turnover box 16, allowing it to rest on the ground. A hydraulic lift 17 is fixedly installed inside the turnover box 16, with multiple graphite boxes placed at its top. There are two stripping boxes 14, arranged on both sides of the turnover box 16, with stripping box tracks 15 inside the cavities of the stripping boxes 14. An oxygen venting box is also included. The body 11 consists of two sets of oxygen venting boxes 11, which are located on opposite sides of the two sets of stripping boxes 14. An oxygen venting box track 12 is installed inside the cavity of the oxygen venting box 11. The two sets of oxygen venting boxes 11 and stripping boxes 14 are axially symmetrical around the turnover box 16. The bottom ends of the oxygen venting boxes 11 and stripping boxes 14 are fixedly equipped with directional pulleys. Tracks 18 are fixedly installed on the ground below the two sets of oxygen venting boxes 11 and stripping boxes 14. The directional pulleys at the bottom ends of the oxygen venting boxes 11 and stripping boxes 14 are movably engaged with the corresponding tracks 18.

[0017] The turnover box 16 is set as the core load-bearing component of the device, used to connect the two stripping boxes 14 on both sides with the subsequent sintering furnace for transfer. The universal wheels installed at the bottom of the turnover box 16 facilitate its flexible movement and docking with different equipment. The hydraulic lift 17 installed inside the turnover box 16 can be adjusted in height according to the height of the operator or the needs of graphite box placement, avoiding manual bending or tiptoeing, reducing the difficulty of material placement, and reducing the material placement time. Two sets of oxygen exhaust boxes 11 and stripping boxes 14 are set around the turnover box 16 in an axis. The symmetrical design ensures balanced force distribution on the entire device and consistent operation on both sides. The coordination between the directional pulleys and the corresponding tracks 18 restricts the movement paths of the oxygen degassing box 11 and the stripping box 14, preventing box offset and ensuring precise positioning when the oxygen degassing box 11, stripping box 14, and turnover box 16 are docked, thus improving docking efficiency. By setting up the oxygen degassing box 11, the isostatically pressed billet can be placed into the oxygen degassing box 11 for oxygen degassing. Adding a separate oxygen degassing box 11 speeds up the oxygen degassing time and saves oxygen degassing time.

[0018] like Figure 1-2 As shown, tempered glass is installed on both the front and rear sides of the two sets of material stripping box tracks 15. Multiple sets of material stripping box flange openings 20 are provided through the tempered glass windows. Tempered glass windows are also installed at both the front and rear ends of the turnover box carriage 16. Multiple sets of turnover box flange openings 21 are provided through the tempered glass windows. Pneumatic sealing doors 19 are installed between the turnover box carriage 16 and the two sets of material stripping box tracks 15, allowing communication between them. By setting up a pneumatic sealing door 19, after the pneumatic sealing door 19 is closed, it ensures that there is no gas leakage when the stripping box 14 is docked with the turnover box 16. At the same time, it provides a smooth passage for the transfer of pressed billets, eliminating the need for manual handling of pressed billets across the box and reducing the probability of collision damage to the pressed billets. It can maintain an inert gas environment inside the stripping box 14 and the turnover box 16, preventing external air from entering and causing oxidation of the pressed billets. By setting up multiple sets of stripping box flange ports 20 and turnover box flange ports 21, it is convenient for operators to perform stripping operations and stacking.

[0019] like Figure 1 and Figure 3 As shown, a pneumatic locking mechanism 13 is provided between the oxygen venting chamber 11 and the material stripping chamber 14 on the same side. A switch button is provided at the front end of the pneumatic locking mechanism 13. The oxygen venting chamber 11 and the material stripping chamber 14 can be connected through the pneumatic locking mechanism 13. A vacuum pump and an inert gas cylinder are provided on one side of the oxygen venting chamber 11. A horizontal platform 22 is fixedly installed inside the cavity of both the oxygen venting chamber 11 and the material stripping chamber 14. The oxygen venting chamber track 12 and the material stripping chamber track 15 are installed on the corresponding platform 22. The vacuum pump and inert gas cylinder on one side of the oxygen degassing box 11 can efficiently degas the oxygen degassing box 11, the stripping box 14 and the turnover box 16. The inert gas cylinder injects inert gas into the cavity of the oxygen degassing box 11, the stripping box 14 and the turnover box 16. The button control of the pneumatic locking mechanism 13 is simple and convenient. When the oxygen degassing box 11 and the stripping box 14 are connected, the oxygen degassing box track 12 and the stripping box track 15 can be seamlessly connected. The pressed billet can be directly transported from the oxygen degassing box to the stripping box along the track 18 without manual handling, which solves the problems of time-consuming handling and easy bumping in traditional operation.

[0020] The implementation principle of the glove box device for stripping and feeding sintered NdFeB billets into the furnace according to this utility model is as follows: First, the isostatically pressed sintered NdFeB ingots are placed into two sets of oxygen venting boxes 11. The position of the ingots is adjusted using the oxygen venting box track 12 to ensure uniform distribution. The vacuum pump on one side of the oxygen venting box 11 is started to remove the air from the oxygen venting box 11. After vacuuming is completed, the inert gas cylinder is opened to fill the oxygen venting box 11 with inert gas, creating a low-oxygen environment to complete the oxygen venting of the ingots. At the same time, the two sets of oxygen venting boxes 11 and the stripping box 14 are moved along the ground track 18 by the cooperation of the directional pulleys at the bottom of the stripping box 14 and the oxygen venting box 11 with the ground track 18, so that the oxygen venting box 11 and the stripping box 14 are aligned with the intermediate turnover box 16. At this time, the pneumatic locking mechanism 13 is kept closed to ensure a stable inert gas environment in the oxygen venting box 11 during the oxygen venting process.

[0021] Secondly, after oxygen venting is completed, press the switch button of the pneumatic locking mechanism 13 to open it. At this time, the oxygen venting box 11 is connected to the stripping box 14 on the same side, and the oxygen venting box track 12 and the stripping box track 15 are seamlessly connected. The oxygen-vented compact is transported along the oxygen venting box track 12 and the stripping box track 15 into the oxygen venting box 14. The operator observes the condition of the compact through the tempered glass on the front and back sides of the oxygen venting box 14 and performs the stripping operation using the stripping box flange 20. After stripping is completed, open the pneumatic sealing door 19 between the turnover box 16 and the stripping box 14. According to the operator's height or material placement requirements, start the hydraulic lift 17 in the turnover box 16 to adjust the height and transport the stripped compact along the stripping box track 15 into the graphite box in the turnover box 16, completing the transfer and stacking of the compact.

[0022] Finally, after all the pressed billets are stacked in the graphite box, the pneumatic sealing door 19 is closed to ensure a seal between the turnover box 16 and the stripping box 14, maintaining an inert gas environment inside the turnover box 16 to prevent oxidation of the pressed billets. The turnover box 16 is then moved to the side of the sintering feed car, precisely docked with the feed car, and the graphite box containing the pressed billets is transferred to the feed car. The feed car then transports the pressed billets into the sintering furnace, completing the entire process of oxygen removal, stripping, transfer, and furnace loading.

[0023] The above embodiments are preferred implementations of this utility model. In addition, this utility model can be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for feeding into a furnace, characterized by include: The turnover box carriage (16) is equipped with casters at the four corners of its bottom end. The turnover box carriage (16) is placed on the ground by the casters. Tempered glass windows are provided at both the front and rear ends of the turnover box carriage (16). Multiple sets of turnover box flanges (21) are provided through the tempered glass windows. A hydraulic lift (17) is fixedly installed inside the turnover box carriage (16). The material stripping box (14) consists of two sets, which are arranged on both sides of the turnover box car body (16). The material stripping box track (15) is provided inside the cavity of the material stripping box (14). Oxygen exhaust box (11), the oxygen exhaust box (11) consists of two sets, the two sets of oxygen exhaust boxes (11) are located on the side away from each other of the two sets of stripping boxes (14), and an oxygen exhaust box track (12) is provided inside the cavity of the oxygen exhaust box (11). The two sets of oxygen exhaust boxes (11) and stripping boxes (14) are axially symmetrical around the turnover box (16). The bottom ends of the oxygen exhaust boxes (11) and stripping boxes (14) are fixedly installed with directional pulleys.

2. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that Both sets of oxygen degassing boxes (11) and material stripping boxes (14) are fixedly installed with rails (18) on the ground below them. The directional pulleys at the bottom of the oxygen degassing boxes (11) and material stripping boxes (14) are engaged with the corresponding rails (18).

3. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that: A pneumatic locking mechanism (13) is provided between the oxygen degassing box (11) and the stripping box (14) on the same side. A switch button is provided at the front end of the pneumatic locking mechanism (13). The oxygen degassing box (11) and the stripping box (14) can be connected through the pneumatic locking mechanism (13). A vacuum pump and an inert gas cylinder are provided on one side of the oxygen degassing box (11).

4. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that: Pneumatic sealing doors (19) are provided between the turnover box carriage (16) and the two sets of stripping box tracks (15), and the turnover box carriage (16) and the two sets of stripping box tracks (15) can be connected through the pneumatic sealing doors (19).

5. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that: Tempered glass is installed on both the front and rear sides of the two sets of stripping box tracks (15), and multiple sets of stripping box flanges (20) are provided through the tempered glass windows.

6. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that: Both the oxygen degassing box (11) and the material stripping box (14) are fixedly installed with horizontal platforms (22), and the oxygen degassing box track (12) and the material stripping box track (15) are installed on the corresponding platforms (22).

7. The glove box apparatus for debinding and sintering a compact of neodymium-iron-boron for pressing into a furnace according to claim 1, characterized in that: Multiple graphite boxes are placed on the top of the hydraulic lift (17).

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