CN217095682U - Powder circulation supply device of SLM equipment - Google Patents
Powder circulation supply device of SLM equipment Download PDFInfo
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- CN217095682U CN217095682U CN202220482463.6U CN202220482463U CN217095682U CN 217095682 U CN217095682 U CN 217095682U CN 202220482463 U CN202220482463 U CN 202220482463U CN 217095682 U CN217095682 U CN 217095682U
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Abstract
The utility model discloses jumbo size SLM equipment technical field discloses a powder circulation feeding device of SLM equipment, include: the powder supply unit comprises a powder storage barrel body and a powder supplementing opening communicated with the powder storage barrel body; the powder feeding mechanism comprises a powder inlet, an air inlet, a mixing chamber and a powder outlet, wherein the powder inlet, the air inlet and the powder outlet are all communicated with the mixing chamber, the powder inlet is connected with the powder storage barrel body, the powder outlet is connected with the SLM equipment, and a driving mechanism is arranged in the mixing chamber; the gas circulation mechanism comprises a circulating fan and a powder collecting unit, the circulating fan is connected with the air inlet to send protective gas into the powder feeding mechanism, and the powder collecting unit is connected with the powder inlet and the circulating fan; and the controller is electrically connected with the circulating fan and the driving mechanism, so that a large amount of manpower and material resources can be saved in the powdering process of the SLM equipment, the powdering efficiency is improved, and the safety factor of the device is improved.
Description
Technical Field
The utility model relates to a jumbo size SLM equipment technical field especially relates to a powder circulation feeding device of SLM equipment.
Background
SLM is an additive technique that controls a laser beam to completely melt a metal powder to directly form a metal part. Before the high-power density laser beam starts scanning, the horizontally moving powder laying vehicle lays metal powder on a substrate of a forming chamber, and then the laser beam selectively melts the powder on the substrate according to the contour information of the current layer to process the contour of the current layer.
At present, SLM equipment is developed towards the direction of large size, high precision, high efficiency and multiple materials. In order to meet the forming requirement of large-size workpieces with complex structures, the maximum forming size of large-size SLM equipment reaches the meter level, the powder demand in the printing process also reaches the ton level, and the forming period often needs several weeks. At present, powder required by SLM equipment printing is generally directly loaded into a powder supply platform in a manual operation mode or is firstly put into a powder dropping bin and then is transferred to a powder paving bin, and in the whole material placing process, the powder is required to be circulated among all working procedures, a production place and tools are required to be cleaned, and personal protection equipment is required to be worn. To large-scale SLM equipment, operating personnel need utilize earlier the frame ladder to climb to the equipment top, then dismantle the clamp on the powder bucket that falls, in rethread funnel or flat shovel slowly drop into the powder bucket with powder in the storage bucket, the artifical mode of throwing the material not only loss operating personnel time and physical power in a large number, has the potential safety hazard moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the powder circulation supply device of the SLM equipment automatically feeds powder through the powder feeding mechanism, so that a large amount of manpower and material resources can be saved in the powder feeding process of the SLM equipment, the powder feeding efficiency is improved, and the safety factor of the device is improved.
In order to achieve the above object, the present invention provides a powder circulation supply device of an SLM device, including:
the powder supply unit comprises a powder storage barrel body and a powder supplementing opening communicated with the powder storage barrel body;
the powder feeding mechanism comprises a powder inlet, an air inlet, a mixing chamber and a powder outlet, the powder inlet, the air inlet and the powder outlet are all communicated with the mixing chamber, the powder inlet is connected with the powder storage barrel body, the powder outlet is connected with the SLM equipment, and a driving mechanism is arranged in the mixing chamber and used for driving powder to move in the mixing chamber;
the gas circulation mechanism comprises a circulating fan and a powder collecting unit, the circulating fan is connected with the air inlet so as to send protective gas into the powder feeding mechanism, and the powder collecting unit is connected with the powder inlet and the circulating fan; and
a controller electrically connected to the circulating fan and the driving mechanism.
The embodiment of the utility model provides a powder circulation feeding device of SLM equipment compares with prior art, and its beneficial effect lies in: the powder supply unit comprises a powder storage barrel body and a powder supplementing opening, powder required by the operation of the SLM equipment is added into the powder storage barrel body through the powder supplementing opening, the operation is simple and fast, and the requirement of manpower climbing equipment can be saved. When the powder conveying mechanism works, powder enters the powder conveying mechanism from the powder storage barrel through the powder inlet of the powder conveying mechanism, protective gas is conveyed into the powder conveying mechanism through the circulating fan and is mixed with the powder in the powder conveying mechanism, the mixed powder is conveyed into SLM equipment through the powder outlet by the driving mechanism, and the rest protective gas is recovered by the powder collecting mechanism and is conveyed into the circulating fan again. This application makes the whitewashed process of going up of SLM equipment can save a large amount of manpower and materials through the automatic powder that send of powder mechanism, has improved the efficiency of going up whitewashed, has improved the factor of safety of device.
The utility model discloses powder circulation feeding device of SLM equipment, circulating fan still is connected with protective gas feeding device, it includes the gas outlet to receive the powder unit, advance the powder mouth with be provided with control switch between the powder storage bucket body, protective gas feeding device with control switch all electricity connect in the controller.
The utility model discloses powder circulation feeding device of SLM equipment, control switch includes pneumatic butterfly valve, protective gas feeding device with be provided with air inlet solenoid valve between the circulating fan, gas outlet department is provided with the solenoid valve of giving vent to anger, air inlet solenoid valve with the solenoid valve electricity of giving vent to anger all connects in the controller.
The utility model discloses powder circulation feeding device of SLM equipment, receive the powder unit including the gas inlet that connects gradually, receive powder bucket and filter equipment, gas inlet connects go out the powder mouth in order to retrieve the gas of powder mouth department, filter equipment connects the gas outlet.
The utility model discloses powder circulation feeding device of SLM equipment, filter equipment's exit linkage has gas flowmeter, gas flowmeter electricity connect in the controller.
The utility model discloses powder circulation feeding device of SLM equipment, actuating mechanism including set up in screw rod in the mixing chamber, the screw rod be used for with the powder by it transports extremely to advance the powder mouth go out the powder mouth, the screw rod passes through motor drive.
The utility model discloses powder circulation feeding device of SLM equipment, set up in the storage powder staving by storage powder level meter and oxygen meter in order to monitor store up powder volume and oxygen volume in the powder staving, store up the powder level meter with the oxygen meter electricity connect in the controller.
The utility model discloses powder circulation feeding device of SLM equipment, be provided with vibrating device in the storage powder staving, the vibrating device electricity connect in the controller.
The utility model discloses powder circulation feeding device of SLM equipment, which comprises a housin, send whitewashed mechanism circulating fan with store up the powder staving set up in inside the casing, send whitewashed mechanism set up in store up the below of powder staving, mend the powder mouth with receive the powder unit set up in the top of casing.
The utility model discloses powder circulation feeding device of SLM equipment, be provided with wireless module in the controller, wireless module connects SLM equipment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic external structural view of a powder circulation supply device of an SLM apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a powder circulation supply device of an SLM apparatus according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of a powder feeding mechanism of a powder circulation supply device of an SLM apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a powder collecting unit of a powder circulation supply device of an SLM apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a top structure of a housing of a powder circulation supply device of an SLM apparatus according to an embodiment of the present invention;
fig. 6 is a schematic gas path diagram of an oxygen discharge and protection gas filling mode of the powder circulation supply device of the SLM apparatus according to the embodiment of the present invention;
fig. 7 is a schematic gas path diagram of a circulating powder feeding mode of the powder circulating supply device of the SLM apparatus according to the embodiment of the present invention;
in the figure, 1, a powder storage barrel body; 11. a powder supplementing port; 12. a powder storage level meter; 13. an oxygen meter; 2. a powder feeding mechanism; 21. a powder inlet; 22. an air inlet; 23. a mixing chamber; 24. a powder outlet; 25. a screw; 26. a motor; 27. a coupling; 3. a circulating fan; 4. a powder collecting unit; 41. an air outlet; 42. a gas inlet; 43. a powder collecting barrel; 44. a filtration device; 45. a gas flow meter; 46. a powder discharging return air port; 47. a powder collecting level meter; 5. an air inlet solenoid valve; 6. an air outlet electromagnetic valve; 7. a housing; 71. and displaying the control panel.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
As shown in fig. 1 and fig. 2, the powder circulation supply device of the SLM device according to the preferred embodiment of the present invention includes a powder supply unit, the powder supply unit includes a powder storage barrel 1 and a powder supplementing port 11, the powder supplementing port 11 is communicated with the powder storage barrel 1, the powder required by the operation of the SLM device is added into the powder storage barrel 1 through the powder supplementing port 11, which is simple and fast, and the requirement of manpower climbing device can be eliminated; the powder storage barrel body 1 is arranged to be funnel-shaped with a large upper part and a small lower part, and powder to be conveyed is discharged out of the powder storage barrel body 1 from the lower part of the powder storage barrel body 1.
As shown in fig. 2 and fig. 3, the powder circulation supply device of SLM equipment according to the preferred embodiment of the present invention further includes a powder feeding mechanism 2, the powder feeding mechanism 2 is disposed below the powder storage barrel 1, the powder feeding mechanism 2 includes a powder inlet 21, an air inlet 22, a mixing chamber 23 and a powder outlet 24, the powder inlet 21, the air inlet 22 and the powder outlet 24 are all communicated with the mixing chamber 23, and the mixing chamber 23 is used for mixing the shielding gas and the powder; the powder inlet 21 faces the powder storage barrel body 1, and the powder inlet 21 is connected with the powder storage barrel body 1 and used for receiving powder transmitted from the powder storage barrel body 1; the powder outlet 24 is connected with the SLM equipment and is used for conveying the powder in the mixing chamber 23 to the SLM equipment by the powder conveying mechanism 2; the inlet opening 22 is used to feed the protective gas into the mixing chamber 23. The mixing chamber 23 is provided with a driving mechanism, the driving mechanism is used for driving the powder to move in the mixing chamber 23, and the powder mixed with the protective gas is pushed to the powder outlet 24 from the powder inlet 21.
As shown in fig. 2 and fig. 6, the powder circulation supply device of SLM equipment according to the preferred embodiment of the present invention further includes a gas circulation mechanism, the gas circulation mechanism includes a circulation fan 3 and a powder collection unit 4, the circulation fan 3 has a fan inlet and a fan outlet, the fan inlet of the circulation fan 3 is used for receiving shielding gas, the fan outlet of the circulation fan 3 is connected to the air inlet 22, and the shielding gas in the circulation fan 3 can be sent into the powder feeding mechanism 2; the powder collecting unit 4 is connected with the powder inlet 21 and the circulating fan 3, and is used for collecting the protective gas discharged from the powder feeding mechanism 2, sending the protective gas back to the circulating fan 3 after certain treatment, and sending the protective gas back to the powder feeding mechanism 2 through the circulating fan 3; circulating fan 3 has good leakproofness ability as the power supply that the powder was carried, can carry demand power at the powder when, with the protective gas cyclic utilization in the device, and circulating fan 3 and the cooperation of receiving the powder mechanism can greatly reduce the protective gas consumption in the powder transportation process.
The utility model discloses a powder circulation feeding device of SLM equipment of preferred embodiment, it still includes the controller, and the controller is as the control center of this device, can set up in this device's inside or outside, and its electricity is connected in circulating fan 3 and actuating mechanism for start-stop and operating condition of control circulating fan 3 and actuating mechanism; referring to fig. 7, when the powder circulation supply device performs circulation powder feeding operation, powder enters the powder feeding mechanism 2 from the powder storage barrel body 1 through the powder inlet 21 of the powder feeding mechanism 2, the controller sends a signal to start the circulating fan 3 and the driving mechanism, protective gas is fed into the powder feeding mechanism 2 through the circulating fan 3 and is mixed with the powder in the powder feeding mechanism 2, the mixed powder is fed into the SLM equipment through the powder outlet 24 by the driving mechanism, and the rest protective gas is recovered by the powder collecting mechanism and is fed into the circulating fan 3 again.
As shown in fig. 4 and 6, in some embodiments of the present invention, the device further has an oxygen discharging and shielding gas charging mode to automatically discharge excessive oxygen in the device and charge shielding gas to ensure the safety of the device. Specifically, the circulating fan 3 is further connected with a protective gas supply device for flushing protective gas into the circulating fan 3 so as to supplement the protective gas to the powder circulating supply device; the powder receiving unit 4 comprises an air outlet 41, the air outlet is simultaneously connected with the circulating fan 3 and the external space, the air outlet 41 carries out protective gas conveying on the circulating fan 3 in a circulating powder feeding mode, and in an oxygen discharging and protecting gas charging mode, the air outlet 41 directly discharges oxygen to the external space; a control switch is arranged between the powder inlet 21 and the powder storage barrel body 1 and controls whether the powder storage barrel body 1 discharges powder or not, the control switch opens a passage between the powder storage barrel body 1 and the powder inlet 21 in a circulating powder feeding mode, and in an oxygen discharging and protecting gas charging mode, the control switch disconnects the passage between the powder storage barrel body 1 and the powder inlet 21 to prevent powder and oxygen from entering the powder feeding mechanism 2 which discharges oxygen; the protective gas supply device and the control switch are electrically connected to the controller, so that the controller can adjust the protective gas supply device and the control switch conveniently, and the controller can control the on and off of the oxygen discharge and protection gas charging mode.
As shown in fig. 6, in some embodiments of the present invention, the control switch includes a pneumatic butterfly valve, which has a simple structure and is easy to control, and can stably control the opening and closing of the passage between the powder storage barrel 1 and the powder outlet 24; an air inlet electromagnetic valve 5 is arranged between the protective gas supply device and the circulating fan 3, and the air inlet electromagnetic valve 5 controls the on-off of the circulating fan 3 and the protective gas supply device to control the supplement of the protective gas of the whole device; an air outlet electromagnetic valve is arranged at the air outlet 41, the air outlet electromagnetic valve 6 is used for controlling the on-off of the air outlet 41 and the external space, the air outlet electromagnetic valve 6 is closed in the circulating powder feeding mode, the air outlet 41 conveys the protective gas to the circulating fan 3, in the oxygen discharging and protective gas charging mode, the air outlet electromagnetic valve 6 is closed, and the air outlet 41 directly discharges the oxygen to the external space; the air inlet electromagnetic valve 5 and the air outlet electromagnetic valve 6 are electrically connected to the controller, so that the controller can adjust the air inlet electromagnetic valve 5 and the air outlet electromagnetic valve 6 conveniently, and the controller can control the supplement of the protective gas in the oxygen discharging and protecting gas filling mode and the sealing of the protective gas in the circulating powder feeding mode.
As shown in fig. 4, in some embodiments of the utility model, receive powder unit 4 including the gas inlet 42 that connects gradually, receive powder bucket 43 and filter equipment 44, gas inlet 42 connects out powder mouth 24 in order to retrieve the gas that goes out powder mouth 24 department, receive powder bucket 43 then to be used for collecting and get into a small amount of powder of receiving powder unit 4 along with protective gas or oxygen, filter equipment 44 connects gas outlet 41, make the protective gas or the oxygen that have the powder obtain filtering when discharging through gas outlet 41, prevent that the powder from revealing to external environment or entering circulating fan 3, prevent to cause the work of pollution or influence circulating fan 3 to external environment. The protective gas or oxygen entering the powder collecting unit 4 enters the powder collecting unit 4 through the gas inlet 42 and then enters the powder collecting barrel 43 for gas-solid separation, part of the powder is settled and collected in the powder collecting barrel 43, then the protective gas or oxygen enters the filtering device 44, so that the powder remained in the protective gas or oxygen is thoroughly filtered, finally the filtered protective gas enters the circulating fan 3 through the gas outlet 41, and the oxygen is thoroughly discharged out of the device through the gas outlet 41.
As shown in fig. 4, in some embodiments of the present invention, the powder collecting unit 4 further comprises a powder discharging air returning port 46, the powder discharging air returning port 46 is connected to the outlet of the powder collecting barrel 43, and is used for guiding the protective gas after gas-powder separation and sending the protective gas to the air returning port of the powder supplying unit through a pipeline, and then sending the protective gas to the filtering device 44 through the air returning port.
As shown in fig. 6, in some embodiments of the present invention, in the oxygen discharging and shielding gas charging mode, the pneumatic butterfly valve is closed, the powder is prevented from entering the powder feeding device, the gas outlet solenoid valve 6 and the gas inlet solenoid valve 5 are opened, and the device is communicated with the shielding gas supply device and the external space. The closed pipeline through which the protective gas passes is provided with a protective gas supply device which sequentially flows through the gas inlet electromagnetic valve 5, the circulating fan 3 inlet, the circulating fan 3 outlet, the gas inlet 22, the powder outlet 24, the gas inlet 42, the powder receiving barrel 43, the filtering device 44, the gas outlet 41 and the gas outlet electromagnetic valve 6 to discharge oxygen, the oxygen content in the device is monitored while the gas is discharged, and the oxygen discharge operation is completed until the measurement result is lower than the set requirement of a user.
As shown in fig. 7, in some embodiments of the utility model, the exit linkage of filter equipment 44 has gas flowmeter 45, and gas flowmeter 45 is arranged in monitoring filter equipment 44 exhaust protective gas's velocity of flow and flow, and gas flowmeter 45 electricity is connected in the controller, with data transmission to controller in the course of the work, has ensured the device and has supplied the stable reliability of powder, and provides the basis of judging for realizing automated control.
As shown in fig. 3, in some embodiments of the present invention, the driving mechanism includes a screw 25 disposed in the mixing chamber 23, the screw 25 is matched with the mixing chamber 23 in the length direction, and the powder can be conveyed to the powder outlet 24 from the powder inlet 21 during the rotation process of the screw 25. Specifically, the screw 25 is driven by a motor 26, one end of the screw 25 is connected to the motor 26 disposed outside the mixing chamber 23 through a coupling 27, and the motor 26 is controlled by the controller.
As shown in fig. 5, in some embodiments of the present invention, a powder level meter 12 and an oxygen meter 13 are disposed in the powder storage barrel 1 to monitor the amount of powder and the amount of oxygen in the powder storage barrel 1; the powder storage level meter 12 monitors and feeds back the residual amount of the powder in the powder storage barrel in real time to ensure that enough powder is supplied; the oxygen measuring instrument 13 can monitor and feed back the oxygen content in the powder supply process in real time to ensure that the supplied powder does not disturb the forming atmosphere of the SLM equipment; the powder storage level meter 12 and the oxygen meter 13 are electrically connected to the controller, and can transmit the measured data to the controller in time, so that the controller can adjust the working mode of the device according to the data.
The utility model discloses an in some embodiments, be provided with vibrating device in the storage powder staving 1, vibrating device provides the excitation source on the one hand and can promote the powder that falls, and on the other hand prevents to store the powder in storing up powder staving 1 and caking in storing up powder staving 1, and vibrating device electricity is connected in the controller, controls it through the controller and opens and stop.
As shown in fig. 1, in some embodiments of the present invention, the powder circulation supply device of the SLM device further includes a housing 7, the housing 7 provides a support and an installation space for each part as a framework of the device, the powder feeding mechanism 2, the circulating fan 3 and the powder storage barrel 1 are disposed inside the housing 7, the powder feeding mechanism 2 is disposed below the powder storage barrel 1, the powder supplementing port 11 and the powder receiving unit 4 are disposed at the top of the housing 7, and the circulating fan 3 is disposed at the bottom of the housing 7.
As shown in fig. 1, in some embodiments of the present invention, a display control panel 71 is further disposed on the housing 7, the display control panel 71 transmits an input command to each component and controls the execution of each component, and displays the operation state of the device in real time; preferably, the display control panel 71 includes a disconnecting switch, a touch screen, an emergency stop button and an indicator light. The on-off of the power of the device can be realized through the isolating switch, and a user can input a corresponding instruction into the device and observe various parameters of the device according to the requirement through the touch screen; the emergency stop button is used for emergently cutting off all actions when the device works abnormally; the indicator light is used for displaying the working running state of the equipment in real time.
The utility model discloses a in some embodiments, be provided with wireless module in the controller, a plurality of sensors in wireless module connection SLM equipment and the device have realized the controller to the monitoring and the judgement of device, and the monitoring classification can divide into material volume monitoring, oxygen content monitoring and flow monitoring. In the working process, the wireless module can receive the powder demand required by the SLM equipment for finishing workpiece printing, the powder storage amount information in the powder receiving unit 4, the powder storage amount information in the powder storage barrel body 1, the oxygen content information in the device and the gas flow information in the device. The material quantity monitoring comprises the steps that the powder storage level meter 12 monitors the powder storage quantity of the powder storage barrel body 1 and judges whether powder is supplied for conveying; the powder collecting level meter 47 monitors the powder storage amount of the powder collecting barrel 43 to judge whether the powder conveying requirement exists. Monitoring of the conveying amount, judging the total conveyed powder amount by calculating the powder conveying speed and time, and judging whether the powder required amount required by the equipment for finishing the printing of the workpiece is exceeded. The oxygen content monitoring is used for judging whether the oxygen content in the cavity meets the powder feeding requirement or not, whether the oxygen discharge and protection gas filling mode is completed or not, whether the oxygen content exceeds the standard in the process of the circular powder feeding mode or not, and if the oxygen content exceeds the standard, the oxygen discharge and protection gas filling mode is switched to the circular powder feeding mode until the oxygen content meets the powder feeding requirement and then the circular powder feeding mode is switched to. The flow monitoring is used for judging whether the filter element is blocked or not in the circulating powder feeding process and whether sufficient air flow is required for feeding the powder or not so as to ensure the stability of the powder feeding process.
In some embodiments of the present invention, the device can be switched between an automatic mode and a manual commissioning mode. The automatic mode is to realize the monitoring and judgment of the running state of each component of the device through a communication module in the controller, switch the oxygen discharge and protection gas filling mode and the circulating powder feeding mode according to the judgment result, and automatically regulate and control the parameters in the device. Through the setting of corresponding operating mode, under the setting prerequisite such as the amount of wind of acquiescence, confession powder speed, flow and oxygen content, need not to carry out artificial too much intervention, direct one-key starts, easy operation is convenient. In the manual debugging mode, a user can set the rotating speed of the circulating fan 3 and the powder supply amount of the powder supply amount regulating and controlling unit; the monitoring of the powder storage level meter 12, the powder collection level meter, the gas flow meter 45 and the oxygen meter 13 is used as a reference for manual judgment so as to adapt to different powder supply requirements.
The utility model discloses a working process does: in the circulating powder feeding mode, the gas outlet electromagnetic valve 6 is closed, the pneumatic butterfly valve is opened, the gas inlet electromagnetic valve 5 is closed, powder required by the operation of the SLM device is added into the powder storage barrel body 1 through the powder supplementing port 11, the powder enters the powder feeding mechanism 2 through the powder inlet 21 of the powder feeding mechanism 2 from the powder storage barrel body 1, protective gas is fed into the powder feeding mechanism 2 through the circulating fan 3, the protective gas is mixed with the powder in the mixing chamber 23, the mixed powder is fed to the powder outlet 24 through the screw 25 of the driving mechanism, the powder is fed into the SLM device, the rest protective gas is recovered by the powder collecting mechanism, and the powder is filtered in the filtering device 44 and fed into the circulating fan 3 again to perform the next circulation.
To sum up, the embodiment of the utility model provides a powder circulation feeding device of SLM equipment, its this application is through the automatic powder that send of powder mechanism 2, makes the whitewashed process of the last powder of SLM equipment can save a large amount of manpower and materials, has improved the powder efficiency, has improved the factor of safety of device.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A powder circulation supply apparatus of an SLM apparatus, characterized by comprising:
the powder supply unit comprises a powder storage barrel body and a powder supplementing opening communicated with the powder storage barrel body;
the powder feeding mechanism comprises a powder inlet, an air inlet, a mixing chamber and a powder outlet, the powder inlet, the air inlet and the powder outlet are all communicated with the mixing chamber, the powder inlet is connected with the powder storage barrel body, the powder outlet is connected with the SLM equipment, and a driving mechanism is arranged in the mixing chamber and used for driving powder to move in the mixing chamber;
the gas circulation mechanism comprises a circulating fan and a powder collecting unit, the circulating fan is connected with the air inlet so as to send protective gas into the powder feeding mechanism, and the powder collecting unit is connected with the powder inlet and the circulating fan;
a controller electrically connected to the circulating fan and the driving mechanism.
2. The powder circulation supply device of the SLM device according to claim 1, characterized in that: the circulating fan is further connected with a protective gas supply device, the powder collecting unit comprises a gas outlet, a control switch is arranged between the powder inlet and the powder storage barrel, and the protective gas supply device and the control switch are electrically connected to the controller.
3. The powder circulation supply device of the SLM device according to claim 2, characterized in that: the control switch comprises a pneumatic butterfly valve, an air inlet electromagnetic valve is arranged between the protective gas supply device and the circulating fan, an air outlet electromagnetic valve is arranged at the air outlet, and the air inlet electromagnetic valve and the air outlet electromagnetic valve are electrically connected to the controller.
4. The powder circulation supply device of the SLM device according to claim 2, characterized in that: receive the powder unit including the gas inlet that connects gradually, receive powder bucket and filter equipment, gas inlet connects go out the powder mouth in order to retrieve the gas of powder mouth department, filter equipment connects the gas outlet.
5. The powder circulation supply device of the SLM device according to claim 4, characterized in that: and the outlet of the filtering device is connected with a gas flowmeter which is electrically connected with the controller.
6. The powder circulation supply device of the SLM device according to claim 1, characterized in that: the driving mechanism comprises a screw rod arranged in the mixing chamber, the screw rod is used for conveying the powder from the powder inlet to the powder outlet, and the screw rod is driven by a motor.
7. The powder circulation supply device of the SLM device according to claim 1, characterized in that: the powder storage barrel is internally provided with a powder storage level meter and an oxygen meter to monitor the powder amount and the oxygen amount in the powder storage barrel, and the powder storage level meter and the oxygen meter are electrically connected with the controller.
8. The powder circulation supply device of the SLM device according to claim 1, characterized in that: and a vibration device is arranged in the powder storage barrel body and electrically connected with the controller.
9. The powder circulation supply device of an SLM apparatus according to claim 1, characterized in that: the powder feeding mechanism is arranged below the powder storage barrel body, and the powder supplementing opening and the powder collecting unit are arranged at the top of the shell.
10. The powder circulation supply device of the SLM device according to claim 1, characterized in that: and a wireless module is arranged in the controller and is connected with the SLM equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482463.6U CN217095682U (en) | 2022-03-04 | 2022-03-04 | Powder circulation supply device of SLM equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482463.6U CN217095682U (en) | 2022-03-04 | 2022-03-04 | Powder circulation supply device of SLM equipment |
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| CN217095682U true CN217095682U (en) | 2022-08-02 |
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| CN202220482463.6U Active CN217095682U (en) | 2022-03-04 | 2022-03-04 | Powder circulation supply device of SLM equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749683A (en) * | 2022-03-04 | 2022-07-15 | 广州雷佳增材科技有限公司 | Powder circulation supply device of SLM equipment |
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2022
- 2022-03-04 CN CN202220482463.6U patent/CN217095682U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749683A (en) * | 2022-03-04 | 2022-07-15 | 广州雷佳增材科技有限公司 | Powder circulation supply device of SLM equipment |
| CN114749683B (en) * | 2022-03-04 | 2024-11-22 | 广州雷佳增材科技有限公司 | Powder circulation supply device for SLM equipment |
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