CN107008903A - Cuboid 3D printing equipment and 3D printer - Google Patents

Abstract

The invention relates to the technical field of 3D printing of laser selective melting metal, in particular to a cuboid 3D printing equipment and a 3D printer. The cuboid-shaped 3D printing equipment includes: building molding device and powder supply system; The powder part connection is used to drive the flat powder part to reciprocate above the worktable to smooth the metal powder on the workbench; the flat powder part drive mechanism is used to electrically connect with the control system of the 3D printer. The powder spreading device lays the metal powder on the workbench in a rolling manner, and the powder leveling device smoothes the metal powder on the workbench, thereby improving the flatness of the metal powder layer on the workbench, which can effectively improve the The density and surface smoothness meet the processing conditions of large-size cuboid components with a molding length ≥ 3m.

Description

Cuboid 3D printing equipment and 3D printer

technical field

The invention relates to the technical field of 3D printing of laser selective melting metal, in particular to a cuboid 3D printing equipment and a 3D printer.

Background technique

Additive manufacturing 3D printing technology is based on digital model files (CAD), using powdered metal, PVC, resin, fiber and other materials, through fusion deposition, laser sintering, laser melting, laser curing, and laser cladding. , using special software to slice and reduce the dimensionality of CAD three-dimensional configuration objects, and then print the object layer by layer is a new technology that is rapidly developing in the manufacturing industry. The Three Industrial Revolutions" is called one of the important signs of the third industrial revolution.

Laser selective melting metal 3D printing technology uses high-energy-density laser beams to scan under the control of computer programs, selectively melts the pre-laid metal powder layer and combines it with the matrix metallurgy, and then continuously spreads powder layer by layer, scans, Melting, and finally completing the manufacturing process of three-dimensional metal parts, is currently a metal 3D printing technology that is widely used in the field of additive manufacturing. This technology can manufacture metal parts with complex shapes. The formed parts have good mechanical properties, high precision, and the density reaches more than 99% of traditional metallurgical parts. It is important in the fields of medical treatment, aerospace, military industry, nuclear power construction, product development, etc application.

The powder supply system, build room and work room of the laser selective melting 3D printer in the prior art are all designed in an integrated box-type body, and the side length of the working surface is 150mm or 500mm, and it is designed in a square shape, not in a rectangular design. form of equipment. The construction room is equipped with a piston and a piston plate, and the working substrate is placed on the piston plate. When the piston plate pushes the working substrate up to the thickness of the working surface of the metal powder layer from the bottom of the working chamber, the powder supply device paves a working surface thickness The metal powder layer, that is, the working surface is formed, and then the laser system installed on the top of the 3D printer reflects the laser beam to the metal powder layer on the current working surface through the laser galvanometer, and adjusts the deflection angle of the laser galvanometer through the control system , selectively melt the current metal powder layer according to the shape of the current layer slice pattern, so as to complete the processing of the current layer of the component. After the metal powder layer operation of the current slicing pattern is completed, the worktable is lowered to a height of a preset layer, and the powder supply system lays a metal powder with a preset layer thickness on the workbench, and then the laser system proceeds according to the shape of the current layer slicing pattern. Selective melting, repeated processing according to this method, layer by layer superposition operation, and finally a complete molded component is obtained.

However, due to the design of the metal powder bed laser selective melting process 3D printer in the prior art, due to the design of the square working surface of the integrated box-type body, there is no equipment form for a large cuboid working surface, and it cannot meet the requirements of using this technology to process and manufacture large-sized cuboid components. The powder supply system adopted is a single powder spreading roller or an independent powder spreading brush, and its work efficiency is very low when working on a large-sized working surface. Moreover, the metal powder bed laser selective melting process 3D printer equipment manufactured by the existing technology is to suck out the remaining powder from the working room, then lift the piston plate in the building room, and then take out the working substrate and molded parts. The design of the mechanical equipment is single, and the molding is taken out. The part method is single, and there is no condition for forming large-sized cuboid components with a length greater than or equal to 600mm, which has become a major technical barrier restricting the processing and manufacturing of large cuboid components. Moreover, in the 3D printer in the related art, after the powder spreading roller spreads the metal powder to the workbench, the metal powder layer on the workbench has a relatively low flatness.

Contents of the invention

The purpose of the present invention is to provide a cuboid 3D printing equipment and a 3D printer to solve the technical problem of low flatness of the metal powder layer on the workbench existing in the prior art.

A cuboid 3D printing equipment provided by the present invention, the cuboid 3D printing equipment includes: a building molding device and a powder supply system; the building molding device includes a workbench; the powder supply system includes a powder spreading device, a powder feeding system device and a powder leveling device; the powder spreading device is used to lay the metal powder in the powder feeding device on the workbench in a rolling powder spreading way; the powder leveling device includes a powder leveling piece and a leveling powder Powder driving mechanism; the flat powder driving mechanism is connected with the flat powder, and is used to drive the flat powder to reciprocate above the workbench, so as to smooth the metal powder on the workbench; The flat powder drive mechanism is used for electrical connection with the control system of the 3D printer.

Further, the powder leveling device includes two powder collecting cylinders; the two powder collecting cylinders are oppositely arranged at both ends of the workbench; the powder leveling drive mechanism is used to drive the powder leveling Move back and forth between the two powder collecting cylinders.

Further, the powder flattening drive mechanism includes a powder flattening motor, a gear and a rack matched with the gear; the gear is arranged on the power output shaft of the powder flattening motor; the powder flattening piece is fixed on the On the rack; the flat powder motor is used to drive the rack to reciprocate through the gear.

Further, the powder feeding device includes a powder feeding cylinder, a powder collecting cylinder, a powder feeding piston and a powder feeding piston plate; The first end and the second end opposite to the table; two powder collecting cylinders are respectively arranged at the third end and the fourth end opposite to the work table;

The powder feeding piston plate is arranged in the powder feeding cylinder, and the powder feeding piston is connected with the powder feeding piston plate for driving the powder feeding piston plate to move up and down; the powder feeding piston plate is used for The metal powder required for the operation is placed; the powder collection cylinder is used to store the excess powder after the powder spreading device has laid the powder.

Further, both the first end and the second end are long sides of the workbench; the third end and the fourth end are both short sides of the workbench.

Further, the building molding device includes a building chamber and a piston of the building chamber; the working table is arranged in the building chamber; the piston of the building chamber is connected with the working table, and is used to drive the working table to move up and down; A pick-up port is provided on the outer wall of the construction chamber; a pick-up switch is provided at the pick-up port; the pick-up switch is used to open or close the pick-up port.

Further, the construction chamber piston includes a plurality of lifters; each of the plurality of lifters is connected to the worktable, and is used to drive the workbench to move up and down.

Further, the building molding device includes a main body platform and a 3D printer chamber installed above the main body platform;

The main body platform is provided with an installation port; the workbench is arranged at the installation port; the 3D printer working chamber is located above the installation port, and is provided with a powder injection port and a residual powder suction port; The powder injection port is provided with a powder injection switch for opening or closing the powder injection port; the remaining powder suction port is provided with a powder suction switch for opening or closing the remaining powder suction port;

The building molding device is installed under the main body platform; the powder supply system is installed on the main body platform.

Further, the workbench includes a base plate and a construction chamber piston plate arranged sequentially from top to bottom; the installation port, the base plate, and the construction chamber piston plate are all rectangular; the construction chamber piston plate and the construction chamber piston plate are The construction chamber piston is connected; the length and width of the base plate are smaller than the length and width of the construction chamber piston plate; the length and width of the construction chamber piston plate are the same as the length and width of the installation port.

Further, the present invention also provides a 3D printer, which includes a control system and the cuboid 3D printing equipment according to the present invention; the driving mechanism of the flat powder part is electrically connected to the control system.

The cuboid 3D printing equipment provided by the present invention includes a building molding device and a powder supply system, the building molding device includes a workbench; the powder supply system includes a powder spreading device, a powder feeding device and a powder leveling device; the powder leveling device includes a powder leveling piece and Flat powder drive mechanism. When working, after the powder spreading device lays the metal powder in the powder feeding device on the worktable, the driving mechanism of the flat powder part drives the flat powder part to move back and forth above the workbench, and acts on the metal powder on the workbench to The metal powder on the workbench is smoothed.

In the rectangular parallelepiped 3D printing equipment provided by the present invention, the powder spreading device performs powder spreading in a rolling manner, that is, when the powder spreading device lays the metal powder on the workbench, it rolls the metal powder, and by setting Powder leveling device, the powder leveling device smoothes the metal powder on the workbench, thereby improving the levelness of the metal powder layer on the workbench, which can effectively improve the density and surface finish of the components, and meet the requirements of large molding lengths ≥ 3m. Dimensions Processing conditions for cuboid components.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is a schematic structural diagram of a cuboid 3D printing equipment provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a powder spreading device and a powder feeding device in a cuboid 3D printing equipment provided by an embodiment of the present invention;

Fig. 3 is another structural schematic diagram of the cuboid 3D printing equipment provided by the embodiment of the present invention;

Fig. 4 is a schematic structural diagram of the main body platform in the cuboid 3D printing equipment provided by the embodiment of the present invention.

Reference signs:

1-Construction molding device; 2-Powder supply system; 3-Main platform; 4-3D printer work room; 5-Remaining powder suction port; 6-Powder injection port; 7-Installation port; 13-build chamber piston; 21-powder spreading device; 22-powder feeding device; 23-powder leveling device; 111-substrate; 112-build chamber piston plate; Powder delivery cylinder; 222-powder collection cylinder; 223-powder delivery piston plate; 224-powder delivery piston; 231-powder flat piece; 232-powder collection cylinder;

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Fig. 1 is a schematic structural diagram of a cuboid 3D printing equipment provided by an embodiment of the present invention; Fig. 2 is a schematic structural diagram of a powder spreading device and a powder feeding device in a cuboid 3D printing equipment provided by an embodiment of the present invention; Fig. 1 and Fig. 2 As shown, the embodiment of the present invention provides a cuboid 3D printing equipment, the cuboid 3D printing equipment includes: a building molding device 1 and a powder supply system 2; the building molding device 1 includes a workbench 11; the powder supply system 2 includes Powder device 21, powder feeding device 22 and flat powder device 23; Powder spreading device 21 is used to lay the metal powder in the powder feeding device 22 on the workbench 11 with a rolling type; Flat powder device 23 includes flat powder parts 231 and The flat powder part drive mechanism 233; the flat powder part drive mechanism 233 is connected with the flat powder part 231, and is used to drive the flat powder part 231 to reciprocate above the workbench 11 to smooth the metal powder on the workbench 11; the flat powder part The driving mechanism 233 is used for electrical connection with the control system of the 3D printer.

Among them, the powder spreading method of rolling type means that while pushing the metal powder in the powder feeding device 22 to the workbench 11, a downward force is applied to the metal powder to carry out the metal powder layer on the workbench 11. crushed.

The cuboid 3D printing equipment provided by the embodiment of the present invention includes a building molding device 1 and a powder supply system 2. The building molding device 1 includes a working table 11; the powder supply system 2 includes a powder spreading device 21, a powder feeding device 22 and a powder leveling device 23 ; the powder leveling device 23 includes a powder leveling component 231 and a powder leveling component driving mechanism 233 . When working, after the powder spreading device 21 lays the metal powder in the powder feeding device 22 on the workbench 11 in a rolling manner, the powder flat part drive mechanism 233 drives the powder flat part 231 to reciprocate above the workbench 11, and acts Metal powder on the workbench 11 to smooth the metal powder on the workbench 11.

In the rectangular parallelepiped 3D printing equipment provided by the embodiment of the present invention, the powder spreader 21 spreads powder in a rolling manner, that is, when the powder spreader 21 lays the metal powder on the workbench 11, it grinds the metal powder Pressing, and by setting the powder leveling device 23, the powder leveling device 23 smoothes the metal powder on the workbench 11, and the two are used in conjunction to improve the flatness of the metal powder layer on the workbench 11, avoiding the metal powder on the workbench 11. The metal powder layer is uneven, which makes the components formed by the selective melting of the metal powder layer by the laser selective melting mechanism more precise and standard, which can effectively improve the density and surface finish of the components, and meet the large size of the forming length ≥ 3m Processing conditions for cuboid components. The cuboid-shaped 3D printing equipment provided by the embodiment of the present invention is suitable for the cuboid-shaped workbench 11, and can be used to form large-sized components with a length ≥ 3m, which solves the problem that has seriously restricted the promotion and application of this process technology worldwide for more than 30 years. sexual conundrum. The length of the working table 11 can be set to 4m, the width can be set to 300mm, and the length of the formable component is ≥3m, the width≤300mm, and the height≤500mm.

Wherein, the flat powder part 231 can be a flat powder board, a flat powder block, or a flat powder brush. Preferably, the flat powder member 231 is a flat powder brush, which evenly acts on the metal powder layer, so that the effect of smoothing the metal powder layer is the best.

As shown in FIG. 1 , the powder spreading device 21 includes a powder spreading roller 211 and a powder spreading roller driving mechanism. The powder spreading roller driving mechanism is connected with the powder spreading roller 211 for driving the powder spreading roller 211 to reciprocate above the workbench 11 so as to lay the metal powder in the powder feeding device 22 on the workbench 11 in a rolling manner. That is, the powder spreading roller 211 moves toward the workbench 11, and pushes the metal powder in the powder feeding device 22 onto the workbench 11 while rolling the metal powder, thereby laying the metal powder on the workbench in a rolling manner. 11 on.

As shown in Figure 1, on the basis of the above-mentioned embodiment, further, the powder leveling device 23 includes two powder collecting cylinders 232; the two powder collecting cylinders 232 are relatively arranged at the two ends of the workbench 11; The mechanism 233 is used to drive the powder leveling member 231 to reciprocate between the two powder collecting cylinders 232 .

In this embodiment, in this embodiment, after the powder spreading device 21 lays the metal powder in the powder feeding device 22 at the preset height of the workbench 11, the powder leveling part driving mechanism 233 drives the powder leveling part 231 in the two powder collecting cylinders. 232 moves back and forth, and the flat powder part 231 smoothes the metal powder on the workbench 11, and the redundant metal powder moves with the flat powder part 231, and finally falls into the powder collection cylinder 232 for collection. That is, when the flat powder member 231 moves from one end of the working table 11 to the other end, excess metal powder falls into the powder collecting cylinder 232 located at the other end. When the flat powder part 231 moves from the other end to this end, excess metal powder falls into the powder collecting cylinder 232 located at this end.

In this embodiment, a powder collecting cylinder 232 is provided at opposite ends of the workbench 11, which can fully receive the excess metal powder when the flat powder member 231 is working, and prevent the metal powder from falling outside.

On the basis of the above-described embodiments, further, the powder-flatter drive mechanism 233 includes a powder-flat motor, a gear, and a rack matched with the gear; the gear is arranged on the power output shaft of the powder-flat motor; the powder-flat part 231 is fixed on On the rack; the flat powder motor is used to drive the rack to reciprocate through the gear.

In this embodiment, the powder leveling drive mechanism 233 is set as a powder leveling motor, a gear and a rack. The powder-flat drive motor drives the gears forward and reverse, and the gear drives the rack to move forward and reversely, thereby driving the powder-flat parts 231 to move back and forth. Simple structure and convenient operation.

As shown in Figure 2, on the basis of the above-mentioned embodiments, further, the powder feeding device 22 includes a powder feeding cylinder 221, a powder collecting cylinder 222, a powder feeding piston 224 and a powder feeding piston plate 223; the working table 11 is rectangular; The powder cylinder 221 and the powder collection cylinder 222 are respectively arranged at the first end and the second end opposite to the worktable 11; the two powder collection cylinders 232 are respectively arranged at the third end and the fourth end opposite to the workbench 11; the powder feeding piston plate 223 is set in the powder feeding cylinder 221, the powder feeding piston 224 is connected with the powder feeding piston plate 223, and is used to drive the powder feeding piston plate 223 to move up and down; the powder feeding piston plate 223 is used to place the metal powder required for the operation; the powder receiving cylinder 222 is used for receiving the excess powder after powder spreading by the powder spreading device 21 .

In this embodiment, the powder spreading roller 211 of the powder spreading device 21 pushes the metal powder in the powder feeding cylinder 221 onto the workbench 11, thereby laying the metal powder on the workbench 11, and the excess powder on the powder spread roller 211 is pushed Collect in the powder collection cylinder 222. The powder feeding piston 224 drives the powder feeding piston plate 223 to move upwards, and the powder spreading roller 211 continues to lay the metal powder in the powder feeding cylinder 221 on the workbench 11 . When the metal powder layer on the workbench 11 reaches a preset height, the powder leveler driving mechanism 233 drives the powder leveler 231 to move, and the powder leveler 231 smoothes the metal powder layer on the workbench 11 . Then the laser selective melting mechanism performs selective melting.

In this embodiment, the powder feeding cylinder 221 and the powder collecting cylinder 222 are respectively arranged at the first end and the second end of the workbench 11, and the two powder collecting cylinders 232 are respectively arranged at the third end and the fourth end of the workbench 11 , compact structure, reducing the occupied space.

As shown in FIG. 1 , on the basis of the above embodiments, further, the first end and the second end are both long sides of the workbench 11 ; the third end and the fourth end are both short sides of the workbench 11 .

In this embodiment, the working table 11 is set as a rectangle, and the powder feeding cylinder 221 and the powder collecting powder are respectively located on the long side of the working table 11 , and the two powder collecting cylinders 232 are respectively located on the short side of the working table 11 . The powder spreading roller 211 of the powder spreading device 21 reciprocates between the first end and the second end, and the distance it moves is the width of the workbench 11, that is, the moving distance of the powder spreading roller 211 is reduced, and the powder spreading is improved. efficiency.

Fig. 3 is another structural schematic diagram of the cuboid 3D printing equipment provided by the embodiment of the present invention; as shown in Fig. 1 and Fig. chamber piston 13; workbench 11 is arranged in the construction chamber 12; the construction chamber piston 13 is connected with the workbench 11 to drive the workbench 11 to move up and down; the outer wall of the construction chamber 12 is provided with a pick-up port; There is a pick-up switch; the pick-up switch is used to open or close the pick-up port.

In this embodiment, after a metal powder layer is laid on the workbench 11, the selective laser melting mechanism selectively melts the metal powder layer on the workbench 11, and then, the construction chamber piston 13 drives the workbench 11 to move downward by preset high. The powder spreading roller 211 of the powder spreading device 21 continues to lay the metal powder layer of this height on the workbench 11, and the laser selective melting mechanism selectively melts the metal powder layer on the workbench 11, and thus circulates to finally form a component. Then, the user turns on the pick-up switch on the outer wall of the building chamber 12, so that the pick-up port is opened. Finally, the components are taken out from the pick-up port to complete the work.

In this embodiment, a pick-up port and a pick-up switch are provided on the outer wall of the construction chamber 12, and the user can directly take out the components from the pick-up port of the construction chamber 12, which is different from that in the prior art by raising the piston plate of the construction chamber. 112 and then take out the operating substrate 111 from above. Compared with the direction of the components, the taking out method in this embodiment is simple and easy to operate. Especially when the volume of the component is large, it is difficult to realize the method of taking it out from above, but the method of this embodiment can easily take out the component with a large volume, which meets the operation requirements of large-sized components, and has a large size with a molding length ≥ 3m Component conditions.

Wherein, the pick-up switch can be a pick-up door. The pick-up door is rotatably connected to the pick-up port. The user can open or close the pick-up opening by turning the pick-up door. A handle can also be set on the pick-up door, and the user holds the handle to turn the pick-up door, which is convenient for the user to exert force on the pick-up door.

As shown in FIG. 3 , on the basis of the above embodiments, further, the construction chamber piston 13 includes a plurality of lifters 131 ; the plurality of lifters 131 are connected to the workbench 11 for driving the workbench 11 to move up and down.

In this embodiment, a plurality of lifters 131 simultaneously drive the workbench 11 to move up and down, which can improve the stability of the workbench 11 when moving.

Preferably, a plurality of lifters 131 are arranged at regular intervals along the circumference of the workbench 11 , so that the force on the workbench 11 can be uniform, and the stability of the workbench 11 when moving can be further improved.

The lifter 131 can be a hydraulic cylinder or an air cylinder or the like.

Fig. 4 is a schematic structural view of the main body platform in the cuboid 3D printing equipment provided by the embodiment of the present invention, as shown in Fig. The 3D printer operating room 4 installed above the main platform 3; the main platform 3 is provided with an installation port 7; the workbench 11 is arranged at the installation port 7; on the 3D printer operating room 4, above the installation port 7, there is a powder The injection port 6 and the remaining powder suction port 5; the powder injection port 6 is provided with a powder injection switch for opening or closing the powder injection port 6; the remaining powder suction port 5 is provided with a powder suction port for opening or closing the remaining powder suction port 5 switch; the building molding device 1 is installed under the main platform 3; the powder supply system 2 is installed on the main platform 3.

In this embodiment, the main platform 3 is fixed on the ground, the powder supply system 2 is installed on the main platform 3 , the building and molding device 1 is installed below the main platform 3 , and the 3D printer studio 4 is installed above the main platform 3 . The outer wall of the 3D printer working room 4 is provided with a powder injection port 6 and a powder injection switch. The user opens the powder injection port 6 through the powder injection switch, and then injects metal powder into the powder feeding cylinder 221 through the powder injection port 6, and the powder spreading cylinder lays the metal powder in the powder feeding cylinder 221 on the workbench 11.

In this embodiment, the setting of the main platform 3 greatly increases the size scale of the 3D printer, so that the size of the forming components of the 3D printer is greatly increased, and meets the processing conditions of forming a large-sized cuboid component with a forming length ≥ 3m.

As shown in Fig. 2 and Fig. 3, on the basis of the above-mentioned embodiment, further, the working table 11 includes a base plate 111 and a construction chamber piston plate 112 arranged in sequence from top to bottom; the installation port 7, the base plate 111 and the construction chamber piston The plates 112 are all rectangular; the construction chamber piston plate 112 is connected with the construction chamber piston 13; the length and width of the base plate 111 are all less than the length and width of the construction chamber piston plate 112; The length and width are the same.

In this embodiment, the size of the substrate 111 is smaller than the piston plate 112 of the construction chamber, and the size of the piston plate 112 of the construction chamber is equal to the size of the installation port 7. After the powder spreading roller 211 lays the metal powder in the powder feeding cylinder 221 on the substrate 111, Since the size of the base plate 111 is smaller than the piston plate 112 of the construction chamber, excess metal powder will slide down and fall on the piston plate 112 of the construction chamber. A safety operation zone is formed between them, which can avoid the metallurgical connection between the formed component after the selective melting of the metal powder and the main platform 3 .

On the basis of the above embodiments, further, the embodiment of the present invention also provides a 3D printer, the 3D printer includes a control system and a cuboid 3D printing equipment as described in the present invention; the flat powder drive mechanism 233 and the control system electric connect. The working principle of 3D printing equipment is the same as above, and will not be repeated here.

Wherein, the selective melting mechanism of the 3D printer is located above the operation table 11 .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. a kind of cuboid 3D printing equipment, it is characterised in that including：Build shaped device and powder supplies system；

The structure shaped device includes operation post；The powder supplies system includes power spreading device, dust feeder and flat powder Device；The power spreading device is used to the metal dust in the dust feeder being laid on the work in the powdering mode of compaction type On industry platform；

The flat powder device includes flat powder part and flat powder part drive mechanism；The flat powder part drive mechanism connects with the flat powder part Connect, it is for driving the flat powder part to be moved back and forth above the operation post, the metal dust on the operation post is floating；

The flat powder part drive mechanism is used to electrically connect with the control system of 3D printer.

2. cuboid 3D printing equipment according to claim 1, it is characterised in that the flat powder device includes two collection Powder cylinder；

Two collection powder cylinders are oppositely disposed at the two ends of the operation post；The flat powder part drive mechanism is described for driving Flat powder part is moved back and forth between two collection powder cylinders.

3. cuboid 3D printing equipment according to claim 1, it is characterised in that the flat powder part drive mechanism includes Flat powder motor, gear and the rack being engaged with gear；

The gear is arranged on the power output shaft of the flat powder motor；The flat powder part is fixed on the rack；It is described Flat powder motor is used to drive the rack to move back and forth by the gear.

4. cuboid 3D printing equipment according to claim 2, it is characterised in that the dust feeder includes powder feeding Cylinder, receipts powder cylinder, powder feeding piston and powder feeding piston plate；

The operation post is rectangle；The powder feeding cylinder and the receipts powder cylinder first end that to be separately positioned on the operation post relative With the second end；Two collection powder cylinders are separately positioned on relative the 3rd end and the 4th end of the operation post；

The powder feeding piston plate is arranged in the powder feeding cylinder, and the powder feeding piston is connected with the powder feeding piston plate, for driving The powder feeding piston plate is moved to move up and down；It is used to place metal dust needed for operation on the powder feeding piston plate；The receipts powder cylinder For storing the excessive powder after the power spreading device powdering.

5. cuboid 3D printing equipment according to claim 4, it is characterised in that

The first end and the long side that second end is the operation post；3rd end is described with the 4th end The short side of operation post.

6. cuboid 3D printing equipment according to claim 1, it is characterised in that the structure shaped device includes structure Build room and build room piston；

It is indoor that the operation post is arranged on the structure；Structure room piston is connected with the operation post, described for driving Operation post is moved up and down；Pickup mouthful is provided with the outer wall of the structure room；Pickup switch is provided with the pickup mouthful；It is described Pickup is switched for opening or closing the pickup mouthful.

7. cuboid 3D printing equipment according to claim 6, it is characterised in that structure room piston includes multiple Lifter；

Multiple lifters are connected with the operation post, for driving the operation post to move up and down.

8. cuboid 3D printing equipment according to claim 6, it is characterised in that the structure shaped device includes master Body platform and the 3D printer work-room above the main platform；

Installing port is provided with the main platform；The operation post is arranged at the installing port；The 3D printer operation On room, positioned at the top of the installing port, powder injection and residual powder suction outlet are provided with；Set at the powder injection The note powder for opening or closing the powder injection is equipped with to switch；It is provided with the residual powder suction outlet for beating On or off closes the suction powder switch of the residual powder suction outlet；

It is described to build the lower section that shaped device is arranged on the main platform；The powder supplies system is flat installed in the main body On platform.

9. cuboid 3D printing equipment according to claim 8, it is characterised in that the operation post is included from top to bottom The substrate and structure room piston plate set gradually；

The installing port, the substrate are rectangle with structure room piston plate；Structure room piston plate and the structure Build room piston connection；The length and width of the substrate is respectively less than the length and width of structure room piston plate；It is described to build The length and width of room piston plate is identical with the length and width of the installing port.

10. a kind of 3D printer, it is characterised in that rectangular including control system and as described in claim any one of 1-9 Bodily form 3D printing is equipped；

The flat powder part drive mechanism is electrically connected with the control system.