Split type rear sealing box

Abstract

The utility model discloses a split type rear sealing box which comprises a first box body and a second box body which are fixedly connected into a whole, a first sealing cavity is arranged in the first box body, a powder weighing device and a powder pouring device are arranged in the first sealing cavity, a first access door capable of being opened and closed is arranged on the first box body, and a second sealing cavity is arranged in the second box body. A powder feeding mechanism is arranged in the second sealing cavity, a second access door capable of being opened and closed is arranged on the second box body, a communicating opening for communicating the first sealing cavity with the second sealing cavity is formed between the first box body and the second box body, and valve opening and closing mechanisms used for opening or closing the communicating opening are arranged on the first box body and the second box body. The powder feeding mechanism can reciprocate between the material receiving position corresponding to the lower portion of the communicating opening and the discharging position where the powder feeding mechanism is moved to the forming die cavity of the press, the powder pouring device pours neodymium iron boron powder into a material bin of the powder feeding mechanism through the communicating opening, powder cleaning treatment can be conveniently conducted on the upper cavity, and meanwhile parts in the two box bodies can be conveniently and independently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB powder magnetic field forming presses, in particular to a split rear sealing box. Background Art

[0002] The powder weighing device is an important component of the NdFeB powder magnetic field forming press. The feeding process of the NdFeB forming press includes: the NdFeB powder first enters the weighing device through the barrel, the weighing device weighs a certain amount of NdFeB powder and then pours it into the powder feeding mechanism through the powder pouring device, and finally the NdFeB powder is transferred to the forming mold through the powder feeding mechanism.

[0003] Since the molding press needs to work in an oxygen-free environment, and the existing powder weighing device and powder feeding mechanism are both arranged in a sealed box connected to the molding press, the following problems exist:

[0004] 1. It is not convenient to carry out powder cleaning operation at the symmetrical powder device and the powder pouring device;

[0005] 2. It is inconvenient to inspect and maintain the powder weighing device, powder pouring device and powder feeding mechanism in the sealed box. Summary of the invention

[0006] The utility model aims to provide a split rear sealing box, which is convenient for cleaning powder in the upper chamber and also convenient for independent maintenance of parts in the two boxes.

[0007] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: a split rear sealed box, including a first box body and a second box body fixedly connected as one, a first sealed chamber is arranged in the first box body, a powder weighing device and a powder pouring device are arranged in the first sealed chamber, a first inspection door that can be opened and closed is provided on the first box body, a second sealed chamber is arranged in the second box body, a powder feeding mechanism is arranged in the second sealed chamber, a second inspection door that can be opened and closed is provided on the second box body, a connecting port connecting the first sealed chamber and the second sealed chamber is arranged between the first box body and the second box body, a valve opening and closing mechanism for opening or closing the connecting port is arranged on the first box body and the second box body, the powder feeding mechanism can reciprocate between a material receiving position below the corresponding connecting port and a material unloading position for transferring to a forming cavity of a press, and the powder pouring device pours NdFeB powder into a material bin of the powder feeding mechanism through the connecting port.

[0008] Furthermore, the valve opening and closing mechanism includes a sealing plate and a driving member, wherein the driving member is connected to the sealing plate via a bracket, and the driving member can drive the sealing plate to rise and fall and rotate, thereby opening and closing the communication port.

[0009] Furthermore, the valve opening and closing mechanism comprises a sealing plate and a driving member, wherein the sealing plate is rotatably arranged at the passage opening, and the driving member is used to drive the sealing plate to flip over so as to open and close the communication opening.

[0010] Furthermore, the outer edge of the second box body corresponding to the communication port is provided with a convex ring protruding downward, and the sealing plate is arranged in the second sealing chamber and located at the lower end of the convex ring.

[0011] Furthermore, a material guiding piece is provided at the upper end of the first box body corresponding to the communication port, and the material guiding piece has a passage which is larger at the top and smaller at the bottom.

[0012] Furthermore, a powder pouring device is provided in the first sealed chamber, and the powder pouring device receives the NdFeB powder from the powder weighing device and pours it into the channel opening.

[0013] Furthermore, the first box body and / or the second box body are provided with an oxygen exhaust device, and the first box body and / or the second box body are provided with a nitrogen filling device.

[0014] Furthermore, a connection panel is provided at one end of the second box body close to the molding press, and the second box body is fixedly connected to the molding press via the connection panel, and the connection panel is provided with a passage opening communicated with the second sealed chamber.

[0015] Furthermore, the first box body and / or the second box body is provided with an observation window.

[0016] Furthermore, a vacuum cleaner connecting flange is provided on the first box body and / or the second box body.

[0017] In summary, the utility model has the following beneficial effects:

[0018] The utility model discloses a split rear sealing box, which is configured as two mutually isolated boxes. The two boxes are connected via a connecting port, and the opening and closing of the connecting port is controlled by a valve opening and closing mechanism. At the same time, inspection doors are respectively provided on the first box and the second box, so as to facilitate the powder cleaning process of the upper chamber and the independent maintenance of the two boxes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 2 It is a first perspective structural schematic diagram of the utility model.

[0021] Figure 3 It is a second viewing angle structural schematic diagram of the utility model.

[0022] In the figure: 10, first box body; 11, first sealed chamber; 12, powder weighing device; 13, powder pouring device; 14, first inspection door; 20, second box body; 21, second sealed chamber; 22, powder feeding mechanism; 221, silo; 23, second inspection door; 30, connecting port; 31, convex ring; 32, material guide member; 40, valve opening and closing mechanism; 41, sealing plate; 42, driving member; 50, oxygen exhaust device; 60, nitrogen charging device; 70, connecting panel; 71, passage port; 80, observation window; 90, vacuum cleaner connecting flange. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-3 As shown, a split rear sealed box includes a first box body 10 and a second box body 20 which are fixedly connected as a whole, a first sealed chamber 11 is provided in the first box body 10, a powder weighing device 12 and a powder pouring device 13 are provided in the first sealed chamber 11, a first openable and closable inspection door 14 is provided on the first box body 10, a second sealed chamber 21 is provided in the second box body 20, a powder feeding mechanism 22 is provided in the second sealed chamber 21, and a second openable and closable inspection door 23 is provided on the second box body 20.

[0025] A connecting port 30 connecting the first sealed chamber 11 and the second sealed chamber 21 is provided between the first box body 10 and the second box body 20. A valve opening and closing mechanism 40 for opening or closing the connecting port 30 is provided on the first box body 10 and the second box body 20. The powder feeding mechanism 22 can reciprocate between a material receiving position corresponding to the connecting port 30 and a material unloading position for transferring to the molding cavity of the press. The powder pouring device 13 pours the NdFeB powder into the silo 221 of the powder feeding mechanism 22 through the connecting port 30.

[0026] The split rear sealing box of the utility model is configured to be two mutually isolated boxes, which are connected via a connecting port 30, and the opening and closing of the connecting port 30 are controlled by a valve opening and closing mechanism 40. At the same time, inspection doors are respectively provided on the first box body 10 and the second box body 20, so as to facilitate the powder cleaning process of the upper chamber and the independent maintenance of the two boxes.

[0027] In some embodiments, the valve opening and closing mechanism 40 includes a sealing plate 41 and a driving member 42. The driving member 42 is connected to the sealing plate 41 through a bracket. The driving member 42 can drive the sealing plate 41 to rise and fall and rotate, thereby opening and closing the connecting port 30. Specifically, the driving member 42 is a rotary clamping cylinder, and the lifting and rotation of the sealing plate 41 are realized by the rotary clamping cylinder. When the connecting port 30 needs to be opened, the rotary clamping cylinder first causes the sealing plate 41 to descend a certain stroke and then rotate a certain angle; similarly, when the connecting port 30 needs to be closed, the rotary clamping cylinder first causes the sealing plate 41 to rotate to the lower end of the connecting port 30 and then rise a certain stroke to seal the connecting port 30. The sealing plate 41 is provided with a sealing member that seals with the connecting port 30.

[0028] In other embodiments, the valve opening and closing mechanism 40 includes a sealing plate 41 and a driving member 42. The sealing plate 41 is rotatably disposed at the channel opening 71. The driving member 42 is used to drive the sealing plate 41 to flip over so as to open and close the connecting port 30. In this embodiment, one end of the sealing plate 41 is rotatably connected to the channel opening 71 through a hinge. The driving member 42 can be a cylinder, which drives the sealing plate 41 to rotate with the hinged end as the axis of the rotating shaft through the extension and contraction of the cylinder, thereby achieving the purpose of opening and closing the channel opening 71.

[0029] The outer edge of the second box body 20 corresponding to the connecting port 30 is provided with a convex ring 31 protruding downward, and the sealing plate 41 is arranged in the second sealing chamber 21 and is located at the lower end of the convex ring 31. Through the setting of the convex ring 31, the distance between the discharge port of the connecting port 30 and the silo 221 of the powder feeding mechanism 22 can be shortened, thereby ensuring that the NdFeB powder can be smoothly discharged from the connecting port 30 to the silo 221 of the powder feeding mechanism 22. Shortening the distance can prevent the NdFeB powder from scattering outside the silo 221.

[0030] The upper end of the first box 10 corresponding to the communication port 30 is provided with a material guide, and the material guide has a channel that is larger at the top and smaller at the bottom. The material guide can play a guiding and drainage role through the arrangement of the material guide, and can effectively ensure that the weighed NdFeB powder is smoothly discharged into the communication port 30. Further, a powder pouring device 13 is provided in the first sealed chamber 11, and the powder pouring device 13 receives the NdFeB powder at the powder weighing device 12 and pours it into the channel port 71. The powder pouring device 13 in the utility model can refer to the powder pouring mechanism in the Chinese patent (application announcement number CN204085651U), which will not be described in detail in the utility model.

[0031] The first box body 10 and / or the second box body 20 is provided with an oxygen exhaust device 50, and the first box body 10 and / or the second box body 20 is provided with a nitrogen filling device 60. The oxygen exhaust device 50 and the nitrogen filling device 60 can effectively ensure that the first sealed chamber 11 and the second sealed chamber 21 are oxygen-free environments, thereby preventing oxygen from oxidizing the NdFeB powder and affecting its quality.

[0032] A connecting panel 70 is provided at one end of the second box body 20 close to the molding press, and the second box body 20 is fixedly connected to the molding press through the connecting panel 70. The connecting panel 70 is provided with a passage opening 71 connected to the second sealed chamber 21. The powder feeding mechanism 22 transfers the silo 221 to the mold cavity of the molding press through the passage opening 71. In order to make the powder feeding mechanism 22 run more smoothly in the horizontal direction, a material cart track is provided in the first box body 10 and the second box body 20.

[0033] The first box body 10 and / or the second box body 20 is provided with an observation window 80, which is convenient for the user to see the situation inside the box. Furthermore, the first box body 10 and / or the second box body 20 is provided with a vacuum cleaner connecting flange 90, and the first box body 10 and / or the second box body 20 is connected to the corresponding sealed chamber through the vacuum cleaner connecting flange 90, so that the dust in the sealed chamber is sucked out by the vacuum cleaner.

[0034] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A split rear sealing box, characterized in that: The invention comprises a first box body (10) and a second box body (20) which are fixedly connected as one body, wherein a first sealed chamber (11) is provided in the first box body (10), a powder weighing device (12) and a powder pouring device (13) are provided in the first sealed chamber (11), a first inspection door (14) which can be opened and closed is provided on the first box body (10), a second sealed chamber (21) is provided in the second sealed chamber (21), a powder feeding mechanism (22) is provided in the second sealed chamber (21), a second inspection door (23) which can be opened and closed is provided on the second box body (20), and the first box body (10) is provided with a first sealed chamber (11). A connecting port (30) for connecting the first sealed chamber (11) and the second sealed chamber (21) is provided between the first box (10) and the second box (20); a valve opening and closing mechanism (40) for opening or closing the connecting port (30) is provided on the first box (10) and the second box (20); the powder feeding mechanism (22) can reciprocate between a material receiving position below the corresponding connecting port (30) and a material unloading position for transferring the material to the molding cavity of the press; and the powder pouring device (13) pours the NdFeB powder into the material bin (221) of the powder feeding mechanism (22) through the connecting port (30).

2. A split rear sealing box according to claim 1, characterized in that: The valve opening and closing mechanism (40) comprises a sealing plate (41) and a driving member (42), wherein the driving member (42) is connected to the sealing plate (41) via a bracket, and the driving member (42) can drive the sealing plate (41) to rise and fall and rotate, thereby opening and closing the communication port (30).

3. The split rear sealing box according to claim 1, characterized in that: The valve opening and closing mechanism (40) comprises a sealing plate (41) and a driving member (42); the sealing plate (41) is rotatably arranged at the channel opening (71); and the driving member (42) is used to drive the sealing plate (41) to flip over so as to open and close the communication opening (30).

4. A split rear sealing box according to claim 2, characterized in that: The outer edge of the second box body (20) corresponding to the communication port (30) is provided with a convex ring (31) protruding downwards, and the sealing plate (41) is arranged in the second sealing chamber (21) and is located at the lower end of the convex ring (31).

5. A split rear sealing box according to claim 4, characterized in that: A material guide piece (32) is provided at the upper end of the first box body (10) corresponding to the communication opening (30), and the material guide piece (32) has a passage that is larger at the top and smaller at the bottom.

6. The split rear sealing box according to claim 1, characterized in that: The powder pouring device (13) receives the NdFeB powder from the powder weighing device (12) and pours it into the channel opening (71) and discharges the powder into the silo (221) of the powder feeding mechanism (22).

7. A split rear sealing box according to any one of claims 1 to 6, characterized in that: The first box (10) or / and the second box (20) are provided with an oxygen exhaust device (50), and the first box (10) or / and the second box (20) are provided with a nitrogen charging device (60).

8. The split rear sealing box according to claim 1, characterized in that: A connection panel (70) is provided at one end of the second box body (20) close to the molding press, and the second box body (20) is fixedly connected to the molding press via the connection panel (70). The connection panel (70) is provided with a passage opening (71) that is connected to the second sealed chamber (21).

9. The split rear sealing box according to claim 1, characterized in that: An observation window (80) is provided on the first box body (10) or / and the second box body (20).

10. The split rear sealing box according to claim 1, characterized in that: A dust collector connecting flange (90) is provided on the first box body (10) or / and the second box body (20).

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