Automatic cabin sealing device for metal 3D printer

Abstract

The automatic cabin sealing device for the metal 3D printer comprises a bottom plate, a sliding groove is formed in the upper surface of the bottom plate, a first threaded lead screw is rotationally connected into the sliding groove, a movable block is connected to the surface of the first threaded lead screw in a threaded and sleeved mode, and the movable block is movably connected to the sliding groove. A movable cabin is fixedly connected to the upper surface of the movable block, a supporting mechanism is fixedly connected to the interior of the movable cabin, a supporting plate is fixedly connected to one side of the upper surface of the bottom plate, a supporting seat is fixedly connected to the upper surface of the supporting plate, a sealing groove is formed in the supporting seat, and a sealing mechanism is arranged in the sealing groove. By arranging the sealing mechanism, the device does not need repeated gas washing during printing, the gas washing time is shortened, the production efficiency is improved, the use of inert gas is reduced, the production cost is reduced, and by arranging the supporting mechanism, the device can simply and conveniently carry out feeding and discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of metal 3D printers, in particular to an automatic chamber sealing device for a metal 3D printer. Background Technique

[0002] Metal powder printing, as an important branch of 3D printing technology, mainly uses metal powder as raw material, and through specific technological means, the powder is stacked and solidified layer by layer to finally construct a three-dimensional entity.

[0003] When the existing metal 3D printing and forming equipment works, it is necessary to perform a gas washing operation after sealing the forming chamber, inject inert gas into the forming chamber to reduce the oxygen content to below 100 ppm, and then perform printing. After printing is completed, it is necessary to remove the formed body and replace the substrate. At this time, the chamber is no longer airtight, and the inert gas in the chamber will leak, and the oxygen content will rise. If printing is performed again, it is necessary to repeat injecting inert gas into the sealed chamber until the oxygen content is reduced to below 100 ppm again before printing work can be carried out. This printing method requires repeated gas washing before each printing, which takes a long time for gas washing and has a long printing cycle, which is not conducive to improving production efficiency. Moreover, gas washing requires filling inert gas, and repeated gas washing consumes more gas, increasing production costs. In view of this, in order to improve the existing problems, an automatic chamber sealing device for a metal 3D printer is provided. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a metal 3D printer automatic chamber sealing device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An automatic chamber sealing device for a metal 3D printer, including a bottom plate, a chute is opened on the upper surface of the bottom plate, a first threaded lead screw is rotatably connected inside the chute, a moving block is threadedly sleeved on the surface of the first threaded lead screw, the moving block is movably connected to the chute, a movable chamber is fixedly connected to the upper surface of the moving block, a support mechanism is fixedly connected inside the movable chamber, a support plate is fixedly connected to one side of the upper surface of the bottom plate, a support seat is fixedly connected to the upper surface of the support plate, a sealing groove is provided inside the support seat, a sealing mechanism is provided inside the sealing groove, and a forming chamber is fixedly connected to the upper surface of the support seat.

[0007] As a further improvement of the present utility model, the support mechanism includes a multi-stage electric push rod fixedly connected inside the movable cabin. The telescopic end of the multi-stage electric push rod is fixedly connected with a mounting plate. The upper surface of the mounting plate is fixedly connected with several insertion blocks. The surfaces of the several insertion blocks are sleeved with the same substrate. The lower surface of the substrate is provided with several slots adapted to the substrate.

[0008] As a further improvement of the present utility model, the sealing mechanism includes a cabin sealing door movably connected inside the sealing groove. One side of the cabin sealing door is fixedly connected with a support frame. The back surface of the cabin sealing door is provided with a threaded hole. One side inside the sealing groove is rotatably connected with a second threaded rod adapted to the threaded hole. The cabin sealing door is threadedly sleeved on the second threaded rod.

[0009] As a further improvement of the present utility model, both sides of the upper surface of the bottom plate are provided with moving grooves. Both sides of the lower surface of the movable cabin are fixedly connected with two moving wheels adapted to the moving grooves.

[0010] As a further improvement of the present utility model, one side of the bottom plate is fixedly connected with a limiting plate. A power motor is fixedly connected inside the limiting plate. The power end of the power motor is fixedly connected to the first threaded rod.

[0011] As a further improvement of the present utility model, one side of the support seat is fixedly connected with a rotating motor. The power end of the rotating motor is fixedly connected to the second threaded rod.

[0012] As a further improvement of the present utility model, both sides of the lower surface of the support seat are fixedly connected with reinforcing plates. The lower surfaces of the reinforcing plates are fixedly connected to the bottom plate.

[0013] As a further improvement of the present utility model, one side of the support plate is fixedly connected with a control panel.

[0014] As a further improvement of the present utility model, a cooling cabin is fixedly connected to one side of the upper surface of the support plate. Heat dissipation blowers are fixedly installed on the front and back surfaces of the cooling cabin. An entrance and exit is provided on one side of the lower surface of the support plate.

[0015] As a further improvement of the present utility model, an inert gas filling machine is fixedly connected to the other side of the upper surface of the support plate. The gas outlet of the inert gas filling machine is fixedly connected with a filling pipe. The other end of the filling pipe is fixedly connected to the forming cabin.

[0016] The beneficial effects of the present utility model:

[0017] By setting up a sealing mechanism, during use, through the adoption of an automatic sealing mechanism and an inert gas injection system, instant sealing of the chamber and control of the inert environment during the printing process are achieved. This design avoids the repeated gas washing process before and after printing, significantly shortens the production cycle, and remarkably reduces the consumption of inert gas, thus directly reducing the production cost. At the same time, through the coordinated operation of the rotating motor and the multi-joint electric push rod, automatic opening and closing of the chamber sealing door and precise lifting of the substrate in the forming chamber are realized. The highly automated operation mode not only improves the production efficiency but also reduces manual intervention and the risk of operation errors.

[0018] By setting up a support mechanism, during use, through the ingenious combination of the support mechanism with components such as the chute and the limit plate, the movable chamber can be flexibly moved to a position convenient for operation. Combining with the lifting function of the multi-joint electric push rod, rapid replacement of the substrate and removal of the finished product are realized, greatly simplifying the feeding and discharging processes, enhancing the practicability and flexibility of the equipment, enabling the device to simply carry out feeding and discharging, and increasing the practicability of the device.

[0019] By setting up a cooling chamber, the printed finished product is sent into the cooling chamber, and rapid cooling is carried out by using a heat dissipation fan, which helps to shorten the cooling time of the product, improve the product quality. At the same time, the isolated cooling environment also reduces the influence of external factors on the finished product, ensuring the stability and consistency of the product. Timely and effective cooling treatment helps to reduce internal stress in the product, prevent deformation and cracking, etc., thereby improving the overall quality and stability of the product.

[0020] In summary, in this application, by automatically controlling the rotating motor and the second lead screw, the chamber sealing door is quickly opened and closed, and the substrate is quickly lifted and lowered by using the multi-joint electric push rod, greatly shortening the time for printing preparation and removal of the finished product. This directly improves the overall printing efficiency and reduces the production cycle. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of an automatic chamber sealing device for a metal 3D printer proposed by the present utility model;

[0022] Figure 2 It is a schematic structural diagram of the support mechanism in an automatic chamber sealing device for a metal 3D printer proposed by the present utility model.

[0023] Figure 3 It is a schematic structural diagram of the sealing mechanism in an automatic chamber sealing device for a metal 3D printer proposed by the present utility model.

[0024] Figure 4 It is a schematic internal structural diagram of an automatic chamber sealing device for a metal 3D printer proposed by the present utility model.

[0025] In the figure: 1 bottom plate, 2 sliding groove, 3 first threaded lead screw, 4 moving block, 5 movable chamber, 6 support plate, 7 support base, 8 sealing groove, 9 forming chamber, 10 multi-stage electric push rod, 11 mounting plate, 12 insertion block, 13 base plate, 14 slot, 15 chamber sealing door, 16 support frame, 17 second threaded lead screw, 18 moving groove, 19 moving wheel, 20 limiting plate, 21 power motor, 22 rotating motor, 23 reinforcing plate, 24 control panel, 25 cooling chamber, 26 heat dissipation fan, 27 entrance and exit, 28 gas filling machine, 29 filling pipe. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Referring to Figures 1 - 4 , an automatic chamber sealing device for a metal 3D printer, including a bottom plate 1, a sliding groove 2 is opened on the upper surface of the bottom plate 1, a first threaded lead screw 3 is rotatably connected inside the sliding groove 2, a moving block 4 is threadedly sleeved on the surface of the first threaded lead screw 3, the moving block 4 is movably connected to the sliding groove 2, the upper surface of the moving block 4 is fixedly connected with a movable chamber 5, a support mechanism is fixedly connected inside the movable chamber 5, a support plate 6 is fixedly connected to one side of the upper surface of the bottom plate 1, a support base 7 is fixedly connected to the upper surface of the support plate 6, a sealing groove 8 is provided inside the support base 7, a sealing mechanism is provided inside the sealing groove 8, and a forming chamber 9 is fixedly connected to the upper surface of the support base 7.

[0028] In the present invention, the support mechanism includes a multi-stage electric push rod 10 fixedly connected inside the movable chamber 5, the telescopic end of the multi-stage electric push rod 10 is fixedly connected with a mounting plate 11, several insertion blocks 12 are fixedly connected to the upper surface of the mounting plate 11, the surfaces of several insertion blocks 12 are sleeved with the same base plate 13, and several slots 14 adapted to the base plate 13 are opened on the lower surface of the base plate 13. Through the setting of the insertion blocks 12 and slots 14, the base plate 13 can be simply installed on the mounting plate 11.

[0029] The sealing mechanism includes a chamber sealing door 15 movably connected inside the sealing groove 8, a support frame 16 is fixedly connected to one side of the chamber sealing door 15, a threaded hole is opened on the back surface of the chamber sealing door 15, a second threaded lead screw 17 adapted to the threaded hole is rotatably connected to one side inside the sealing groove 8, and the chamber sealing door 15 is threadedly sleeved on the second threaded lead screw 17. The forming chamber 9 is sealed through the setting of the chamber sealing door 15.

[0030] On both sides of the upper surface of the bottom plate 1, moving grooves 18 are provided. On both sides of the lower surface of the activity cabin 5, two moving wheels 19 adapted to the moving grooves 18 are fixedly connected. On one side of the bottom plate 1, a limiting plate 20 is fixedly connected. Inside the limiting plate 20, a power motor 21 is fixedly connected. The power end of the power motor 21 is fixedly connected to the first threaded rod 3. On one side of the support base 7, a rotating motor 22 is fixedly connected. The power end of the rotating motor 22 is fixedly connected to the second threaded rod 17. Through the arrangement of the moving grooves 18 and the moving wheels 19, the activity cabin 5 can be moved more conveniently. Through the arrangement of the power motor 21, the first threaded rod 3 is driven to rotate. Through the arrangement of the rotating motor 22, the second threaded rod 17 is driven to rotate.

[0031] On both sides of the lower surface of the support base 7, reinforcing plates 23 are fixedly connected. The lower surface of the reinforcing plates 23 is fixedly connected to the bottom plate 1. On one side of the support plate 6, a control panel 24 is fixedly connected. Through the arrangement of the control panel 24, the device is operated to run.

[0032] On one side of the upper surface of the support plate 6, a cooling cabin 25 is fixedly connected. On the front and back of the cooling cabin 25, heat dissipation blowers 26 are fixedly installed. On one side of the lower surface of the support plate 6, an entrance and exit 27 is provided. Through the arrangement of the cooling cabin 25 and the heat dissipation blowers 26, the printed finished products can be quickly cooled.

[0033] On the other side of the upper surface of the support plate 6, an inert gas filling machine 28 is fixedly connected. The air outlet of the inert gas filling machine 28 is fixedly connected to a filling pipe 29. The other end of the filling pipe 29 is fixedly connected to the forming cabin 9. Through the inert gas filling machine 28 and the filling pipe 29, inert gas is injected into the forming cabin 9 to reduce the oxygen content for subsequent printing.

[0034] When the present utility model is used, first, the rotating motor 22 is started to drive the second threaded rod 17 to rotate, and the cabin sealing door 15 is moved to one side of the sealing groove 8, so as to open up the activity cabin 5 and the forming cabin 9. The multi-section electric push rod 10 is started to drive the substrate 13 to move upward until it enters the forming cabin 9. Secondly, the inert gas filling machine 28 is started to inject inert gas into the forming cabin 9 through the filling pipe 29. After the oxygen content reaches the target value, the inert gas filling machine 28 is closed and printing starts. After printing is completed, the multi-section electric push rod 10 is started again to drive the substrate 13 to move downward and the rotating motor 22 is started to close the cabin sealing door 15 to maintain the sealed state inside the forming cabin 9.

[0035] After the waiting cabin sealing door 15 is completely closed, start the power motor 21 to drive the first threaded lead screw 3 to rotate, so that the movable cabin 5 moves in the chute 2 through the moving block 4 until it moves below the cooling cabin 25. Then start the multi-section electric push rod 10 to drive the substrate 13 to move upward, send the substrate 13 and the printed finished product into the cooling cabin 25, start the cooling fan 26 to cool the printed finished product. After cooling, start the power motor 21 again to drive the movable cabin 5 to move beside the limit plate 20, start the multi-section electric push rod 10 to drive the substrate 13 to move upward, remove the substrate 13 and the printed finished product, and finally insert the new substrate 13 into the plug block 12 of the mounting plate 11 through the slot 14 to prepare for printing.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An automatic cabin sealing device for a metal 3D printer, comprising a bottom plate (1), characterized in that: The upper surface of the base plate (1) is provided with a slide groove (2), the interior of the slide groove (2) is rotatably connected with a first threaded screw (3), the surface of the first threaded screw (3) is threadedly sleeved with a moving block (4), the moving block (4) is movably connected to the slide groove (2), the upper surface of the moving block (4) is fixedly connected with a movable chamber (5), the interior of the movable chamber (5) is fixedly connected with a supporting mechanism, one side of the upper surface of the base plate (1) is fixedly connected with a supporting plate (6), the upper surface of the supporting plate (6) is fixedly connected with a supporting seat (7), the interior of the supporting seat (7) is provided with a sealing groove (8), the interior of the sealing groove (8) is provided with a sealing mechanism, and the upper surface of the supporting seat (7) is fixedly connected with a molding chamber (9).

2. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: The support mechanism comprises a multi-section electric push rod (10) fixedly connected to the inside of the movable cabin (5); the telescopic end of the multi-section electric push rod (10) is fixedly connected to a mounting plate (11); the upper surface of the mounting plate (11) is fixedly connected to a plurality of plug blocks (12); the surfaces of the plurality of plug blocks (12) are sleeved with the same base plate (13); and the lower surface of the base plate (13) is provided with a plurality of slots (14) adapted to the base plate (13).

3. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: The sealing mechanism comprises a cabin sealing door (15) movably connected to the inside of the sealing groove (8); a support frame (16) is fixedly connected to one side of the cabin sealing door (15); a threaded hole is provided on the back side of the cabin sealing door (15); a second threaded screw (17) adapted to the threaded hole is rotatably connected to one side of the inside of the sealing groove (8); and the cabin sealing door (15) is threadedly sleeved on the second threaded screw (17).

4. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: Both sides of the upper surface of the bottom plate (1) are provided with moving grooves (18), and both sides of the lower surface of the movable cabin (5) are fixedly connected with two moving wheels (19) that are compatible with the moving grooves (18).

5. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: A limiting plate (20) is fixedly connected to one side of the bottom plate (1), a power motor (21) is fixedly connected inside the limiting plate (20), and a power end of the power motor (21) is fixedly connected to the first threaded screw (3).

6. The automatic cabin sealing device for a metal 3D printer according to claim 3, characterized in that: A rotating motor (22) is fixedly connected to one side of the support seat (7), and a power end of the rotating motor (22) is fixedly connected to the second threaded screw (17).

7. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: Both sides of the lower surface of the support seat (7) are fixedly connected to reinforcement plates (23), and the lower surface of the reinforcement plate (23) is fixedly connected to the bottom plate (1).

8. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: A control panel (24) is fixedly connected to one side of the support plate (6).

9. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: A cooling chamber (25) is fixedly connected to one side of the upper surface of the support plate (6), a heat dissipation fan (26) is fixedly installed on the front and back of the cooling chamber (25), and an entrance (27) is opened on one side of the lower surface of the support plate (6).

10. The automatic cabin sealing device for a metal 3D printer according to claim 1, characterized in that: An inert gas filling machine (28) is fixedly connected to the other side of the upper surface of the support plate (6), a gas outlet of the inert gas filling machine (28) is fixedly connected to a gas charging pipe (29), and the other end of the gas charging pipe (29) is fixedly connected to the molding chamber (9).

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