CN218693899U

CN218693899U - Positive pressure powder conveying system

Info

Publication number: CN218693899U
Application number: CN202222648926.4U
Authority: CN
Inventors: 林木; 奚首真
Original assignee: Xian Bright Laser Technologies Co Ltd
Current assignee: Xian Bright Laser Technologies Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-24
Anticipated expiration: 2032-09-30

Abstract

The utility model belongs to the technical field of 3D printing, and relates to a positive pressure powder conveying system, which comprises a powder supply component and a transfer bin component communicated with the powder supply component; the powder supply component is provided with a material inlet, and the material inlet is communicated with the printing equipment through the powder supply component and the transfer bin component. The utility model provides a malleation powder conveying system of reducible hand labor, avoid the powder oxidation and ensure operating personnel safety.

Description

Positive pressure powder conveying system

Technical Field

The utility model belongs to the technical field of 3D prints, a powder conveying system is related to, especially relate to a malleation powder conveying system.

Background

Powder material is by the wide application in the 3D printing field, and present equipment adds the powder and mainly adopts artifical whitewashed mode, raises the powder bucket and removes to equipment top powder storehouse, uses the powder storehouse of hose connection powder bucket and equipment, carries out the powder and adds. Because metal powder self is heavier, the powder bucket promotes and need be equipped with dedicated equipment, especially to the printer of great model, and the factory building need be equipped with the line and hang just can use usually. In addition, each time of manual powder adding, the powder adding efficiency is low, operators are required to subjectively judge whether powder adding is needed, and more manpower is occupied. The in-process that conventional powder added, the powder that can't avoid when the coupling hose can contact with argon gas, destroys the low oxygen environment in the equipment powder storehouse, leads to the partial oxidation of powder, has increased the possibility with the powder contact in the argon gas to operating personnel.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the background art, the utility model provides a malleation powder conveying system of reducible hand labor, avoid the powder oxidation and ensure operating personnel safety.

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

a positive pressure powder delivery system characterized by: the positive pressure powder conveying system comprises a powder supply component and a transfer bin component communicated with the powder supply component; the powder supply component is provided with a material inlet, and the material inlet is communicated with the printing equipment through the powder supply component and the transfer bin component.

The powder supply component comprises a powder barrel, a powder feeding pipe and a programmable logic controller; the powder barrel is provided with an air source interface and a pressure relief opening; the material inlet is arranged on the powder barrel; the programmable logic controller is electrically connected with the valve at the bottom of the powder barrel and controls the opening and closing of the valve; the powder barrel is communicated with the transfer bin part through a powder feeding pipe.

The powder supply component also comprises a quantitative powder falling device arranged between the powder barrel and the powder feeding pipe; the powder barrel is communicated with the transfer bin part through the quantitative powder falling device and the powder feeding pipe.

And hoops are arranged between the powder barrel and the quantitative powder falling device and between the quantitative powder falling device and the powder feeding pipe.

The powder barrel is a movable powder storage device.

The transfer bin part comprises a transfer bin and a powder falling butterfly valve; the powder supply component is communicated with the printing equipment through the transfer bin and the powder falling butterfly valve.

The transfer bin component also comprises a powder-gas separation device arranged between the powder supply component and the transfer bin; the powder supply component is communicated with the transfer bin through a powder-gas separation device.

The powder-gas separating device is a cyclone separator.

The transfer bin component also comprises a stirring device, and the stirring device comprises a motor and a powder falling shaft; the motor is arranged outside the transfer bin; one end of the powder falling shaft is linked with the motor, and the other end of the powder falling shaft extends into the interior of the transfer bin from the top of the transfer bin along the axial direction of the transfer bin; the motor drives the powder falling shaft to rotate around the axial direction of the powder falling shaft.

The utility model has the advantages that:

the utility model provides a positive pressure powder conveying system, which comprises a powder supply component and a transfer bin component communicated with the powder supply component; supply to be provided with material inlet on the powder part, material inlet is linked together through supplying powder part and transfer storehouse part and printing apparatus. Use the utility model provides a malleation powder conveying system can add the powder to printing apparatus automatically, need not too much and carry out artificial intervention, can carry out full-automatic and semi-automatic printing apparatus and supply powder work, the effectual cost of labor that has reduced, and carry out the totally enclosed transport to the powder, reduce the risk of powder oxidation to avoid operating personnel and powder to carry out direct contact.

Drawings

Fig. 1 is a schematic diagram of a right axial measurement structure of a powder supply end of a positive pressure powder conveying system provided by the present invention;

fig. 2 is a schematic diagram of a left axial measurement structure of a powder supply end of the positive pressure powder conveying system provided by the present invention;

fig. 3 is a schematic front view of a transfer bin component of the positive pressure powder conveying system provided by the present invention;

fig. 4 is a schematic axial view of a transfer bin component of the positive pressure powder conveying system provided by the present invention.

In the figure:

1-a powder barrel; 2-a control panel; 3-an isolating switch; 4-an electrical panel; 5-a main electrical cabinet; 6-quantitative powder falling device; 7-auxiliary electric appliance cabinet; 8-powder feeding pipe; 9-transfer bin electrical cabinet; 10-a powder falling shaft; 11-a cyclone separator; 12-a transfer chamber; 13-a powder falling butterfly valve; 14-gas overflow.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model provides a positive pressure powder conveying system, which comprises a powder supply component and a transfer bin component communicated with the powder supply component; supply to be provided with material inlet on the powder part, material inlet is linked together through supplying powder part and transfer storehouse part and printing apparatus.

Referring to fig. 1 and 2, the powder supply component of the present invention includes a powder barrel 1, a powder feeding pipe 8 and a programmable logic controller; the powder barrel 1 is provided with an air source interface and a pressure relief port; the material inlet is arranged on the powder barrel 1; the programmable logic controller is electrically connected with the valve at the bottom of the powder barrel 1 and controls the opening and closing of the valve; the powder barrel 1 is communicated with the transfer bin part through a powder feeding pipe 8. The powder supply component also comprises a quantitative powder falling device 6 arranged between the powder barrel 1 and the powder feeding pipe 8; the powder barrel 1 is communicated with the transfer bin part through a quantitative powder falling device 6 and a powder feeding pipe 8. Hoops are arranged between the powder barrel 1 and the quantitative powder falling device 6 and between the quantitative powder falling device 6 and the powder feeding pipe 8. The powder barrel 1 is a movable powder storage device.

Powder bucket 1 is portable powder device that stores up, and its shape includes but not only limits in square or cylindrical, and there is pressure release position, material detection position and reserve quick connector at powder bucket top, and all contain standard butterfly valve interface about the powder bucket. The quantitative powder falling device 6 includes, but is not limited to, a device for controlling the quantitative falling of the powder by using a rotary impeller, etc., and one end of the quantitative powder falling device is connected with the powder barrel 1 through a clamp, and the other end of the quantitative powder falling device is connected with the inside of the powder feeding pipe 8 through a clamp. The utility model discloses a control panel 2, isolator 3, electric panel 4, main electric appliance cabinet 5 and auxiliary electrical apparatus cabinet 7 etc. carry out corresponding electric and on-off control. The control panel 2 is composed of a touch screen, an operation button, an emergency stop switch and other control units, and is used for controlling the whole system. The isolating switch 3 is used for controlling the on-off of the power supply of the whole system. The electrical panel 4 comprises a heavy-duty connector for power and signal lines, a quick connector for air supply, and related devices for pressure display and flow control of related air paths. The main electrical cabinet 5 contains the entire heavy current part of the device and the circuit safety related modules. The auxiliary electric appliance cabinet 7 is a relevant component for the relevant PLC control of the whole system. The powder feeding pipe 8 is a powder discharging device at the powder feeding end, and the powder falling from the quantitative powder falling device 6 is blown out of the powder feeding pipe by high-pressure argon gas in the powder feeding pipe. And is connected by a hose to the cyclone 11 of the transit bin assembly.

Referring to fig. 3 and 4, the transfer bin component of the present invention includes a transfer bin 12 and a powder falling butterfly valve 13; the powder supply component is communicated with the printing equipment through a transfer bin 12 and a powder falling butterfly valve 13.

The transfer bin component also comprises a powder-gas separation device arranged between the powder supply component and the transfer bin 12; the powder supply component is communicated with the transfer bin 12 through a powder-gas separation device. The powder-gas separating means is a cyclone 11.

The transfer bin component also comprises a stirring device, and the stirring device comprises a motor and a powder falling shaft 10; the motor is arranged outside the transfer bin 12; one end of the powder falling shaft 10 is linked with the motor, and the other end of the powder falling shaft extends into the interior of the transfer bin 12 from the top of the transfer bin 12 along the axial direction of the transfer bin 12; the motor drives the powder dropping shaft 10 to rotate around the axial direction of the powder dropping shaft 10.

The transfer bin 12 is a rectangular or circular powder storage device that temporarily stores the powder separated by the cyclone 11 to the inside. The powder butterfly valve 13 that falls is standard pneumatic butterfly valve, and the open end uses the hose connection to printing apparatus powder cabin kneck, and whether the inside powder of transfer bin falls to inside the printing apparatus in the control under the use condition. The cyclone 11 separates the powder-gas mixture flowing inside by the action of the cyclone, the powder falls freely by gravity, and the argon gas is discharged through the filter element. The powder falling shaft 10 is a stirring shaft which is continuously stirred, is connected to the top of the transfer bin 12 through a bearing and a bolt, and avoids the phenomenon that powder inside the transfer bin is accumulated and cannot fall normally through self rotation motion. The interior of the transfer bin electric appliance cabinet 9 is used for connecting a signal wire and a related air path of the middle-mounted part.

The utility model discloses when providing the malleation powder conveying system as above record, still provide an automatic powder supply method, especially quantitative automatic feeding's mode is:

1) Mounting a transfer bin component at a powder bin interface at the top of the printing equipment;

2) The powder feeding pipe 8 of the powder supply part is communicated with the cyclone separator 11 of the transfer bin part;

3) Adding sufficient powder into the powder barrel 1;

4) A butterfly valve at the bottom of the powder barrel 1 is opened to enable the powder in the powder barrel 1 to flow into the quantitative powder falling device 6, and the powder supply work is started through a programmable logic controller;

5) High-pressure inert gas enters the powder barrel 1 through an air source interface on the powder barrel 1 and is conveyed to the powder conveying pipe 8 through the powder barrel 1, powder falling from the quantitative powder falling device 6 is blown into a cyclone separator 11 of the transfer bin part under the action of the high-pressure inert gas, the powder is separated from the high-pressure inert gas through the cyclone separator 11 (the powder falls into the transfer bin 12 due to gravity, and the gas is discharged from the equipment through a gas overflow outlet 14 after being filtered), so that the powder is enabled to fall into the transfer bin 12;

6) And starting the butterfly valve 13, stirring by the powder dropping shaft 10, and dropping the powder conveyed to the interior of the transfer bin 12 into the printing equipment to finish the quantitative automatic supply of the powder.

The principle of the utility model is that: the utility model discloses divide into and supply powder part and transfer storehouse part, the transfer storehouse is installed at equipment top powder storehouse kneck in the use, utilize quantitative knockout 6 to carry out quantitative control with powder 1 inside of powder bucket, use high-pressure argon to blow to transfer storehouse part cyclone 11 inside through sending powder pipe 8 through the hose, through whirlwind, separate metal powder and fall into inside transfer storehouse 12, the whereabouts of rethread powder falling butterfly valve 13 control powder, with metal powder by powder 1 inside transport to printing apparatus inside.

Claims

1. A positive pressure powder delivery system characterized by: the positive pressure powder conveying system comprises a powder supply component and a transfer bin component communicated with the powder supply component; the powder supply component is provided with a material inlet, and the material inlet is communicated with the printing equipment through the powder supply component and the transfer bin component.

2. The positive pressure powder transport system of claim 1, wherein: the powder supply component comprises a powder barrel (1), a powder feeding pipe (8) and a programmable logic controller; the powder barrel (1) is provided with an air source interface and a pressure relief port; the material inlet is arranged on the powder barrel (1); the programmable logic controller is electrically connected with the valve at the bottom of the powder barrel (1) and controls the opening and closing of the valve; the powder barrel (1) is communicated with the transfer bin part through a powder feeding pipe (8).

3. The positive pressure powder transport system of claim 2, wherein: the powder supply component also comprises a quantitative powder falling device (6) arranged between the powder barrel (1) and the powder feeding pipe (8); the powder barrel (1) is communicated with the transfer bin part through a quantitative powder falling device (6) and a powder feeding pipe (8).

4. The positive pressure powder transport system of claim 3, wherein: and clamps are arranged between the powder barrel (1) and the quantitative powder falling device (6) and between the quantitative powder falling device (6) and the powder conveying pipe (8).

5. The positive pressure powder transport system of claim 4, wherein: the powder barrel (1) is a movable powder storage device.

6. The positive pressure powder delivery system according to claim 1 or 2 or 3 or 4 or 5, wherein: the transfer bin component comprises a transfer bin (12) and a powder falling butterfly valve (13); the powder supply component is communicated with the printing equipment through a transfer bin (12) and a powder falling butterfly valve (13).

7. The positive pressure powder transport system of claim 6, wherein: the transfer bin component also comprises a powder-gas separation device arranged between the powder supply component and the transfer bin (12); the powder supply component is communicated with the transfer bin (12) through a powder-gas separation device.

8. The positive pressure powder delivery system of claim 7, wherein: the powder-gas separation device is a cyclone separator (11).

9. The positive pressure powder transport system of claim 8, wherein: the transfer bin component also comprises a stirring device, and the stirring device comprises a motor and a powder falling shaft (10); the motor is arranged outside the transfer bin (12); one end of the powder falling shaft (10) is linked with the motor, and the other end of the powder falling shaft extends into the interior of the transfer bin (12) from the top of the transfer bin (12) along the axial direction of the transfer bin (12); the motor drives the powder falling shaft (10) to rotate around the axial direction of the powder falling shaft (10).