Anti-shake device for 3D laser printer

Abstract

The present invention relates to an anti-shake device for a 3D laser printer, comprising: a storage bin; the storage bin is arranged on the main body of the 3D laser printer, and a printing platform is arranged in the storage bin, and the printing platform and the upper end of the storage bin constitute a printing cavity, and the printing cavity can store metal powder; an anti-shake lifting part; the anti-shake lifting part is arranged on the main body of the 3D laser printer. The invention supports the printing platform by floating on water stored in a mechanical bin, so that the printing platform is stably maintained at a certain height, and the driving work of the piston part allows the water to flow out of the liquid outlet part under pressure through the diversion effect of a number of diversion pipes to change the liquid level of the mechanical bin and make the printing platform rise. In this process, the injection impact force of the water will be blocked by the blocking part to avoid the shaking of the water flow, so that the height adjustment work of the printing platform will not shake due to the problem of vibration force, thereby ensuring the accuracy of the laser printing work.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to an anti-shake device for a 3D laser printer. Background Art

[0002] Laser 3D printing is a type of rapid prototyping technology. 3D printing is based on a digital model and then inputs the digital program into the 3D printer, so that the 3D printer can sinter powdered metal or other materials layer by layer to complete the shaping of the object. During the process, the printing platform needs to rise first, and then descend layer by layer during the powder laying process to cooperate with the printing work.

[0003] The existing public patent number CN201921986222.X is an anti-shake lifting platform for a 3D metal printer. The motor rotates to drive the gear to drive the chain to move inside the groove one, so that the upper rotating shaft of the groove one drives the powder spreader to rise, so that the lower end of the powder spreader spreads powder on the lifting platform. The patent does not describe the shaking during the lifting process of the platform, and the rising process of the powder spreader itself is also prone to shaking due to the vibration force caused by the transmission process of the gear and the chain. Therefore, the existing technology has deficiencies and needs to be improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the technical problem of shaking during the lifting and lowering process of the platform in the prior art and provide an anti-shake device for a 3D laser printer.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an anti-shake device for a 3D laser printer, comprising:

[0006] Storage bin; the storage bin is arranged on the main body of the 3D laser printer, and a printing platform is arranged in the storage bin, and the printing platform and the upper end of the storage bin form a printing cavity, and the printing cavity can store metal powder;

[0007] An anti-shake lifting unit; the anti-shake lifting unit is arranged on the 3D laser printer body;

[0008] The anti-shake lifting part includes a mechanical compartment arranged on the main body of the 3D laser printer, a piston part arranged on the mechanical compartment, a plurality of shunt pipes arranged on the piston part connected to one end thereof, a liquid outlet part arranged on one end of the plurality of shunt pipes connected to one end thereof, and a blocking part arranged on the upper end of the liquid outlet part;

[0009] The liquid outlet and the blocking portion are both arranged in the storage bin;

[0010] The piston part and the storage bin can store water, and the printing platform floats on the water surface of the storage bin, wherein

[0011] By driving the piston part, water can be transported to the liquid outlet part through the plurality of diversion pipes. The water is added from the liquid outlet part to the storage bin and then blocked by the blocking part, pushing up the printing platform to make the printing platform rise.

[0012] Further, the piston part includes a water storage tank, a cylinder arranged at the upper end of the water storage tank, a pressure plate arranged on the output shaft of the cylinder, and a plurality of rows of holes arranged at the lower end of the water storage tank;

[0013] The plurality of rows of holes correspond one to one with the plurality of flow diversion pipes;

[0014] The pressing plate is arranged on the water storage tank and the matching side is against the inner wall of the water storage tank;

[0015] The inner wall of the water storage tank stores water, wherein

[0016] By driving the air cylinder, the pressure plate can be pressed down along the water storage tank to allow the water to be pressurized and flow into the diversion pipe through the plurality of drainage holes.

[0017] Furthermore, the piston part also includes a plurality of arch blocks arranged at the bottom end of the water storage tank;

[0018] A plurality of the arch blocks are located adjacent to a plurality of the row holes, and the boundary of the arch block is coplanar with a boundary of one of the row holes.

[0019] Furthermore, the liquid outlet portion includes a frame tube connected to one end of the plurality of diversion tubes, a plurality of water outlet holes arranged at the top of the frame tube, and a plurality of grid plates arranged at the plurality of water outlet holes, wherein

[0020] After the water flows to the frame tube through the plurality of diversion pipes, it is vertically diverted through the plurality of grid plates so that the water is discharged separately through the plurality of water outlet holes.

[0021] Furthermore, the blocking portion includes a plurality of connecting rods and a plurality of baffles connected to each other in a frame shape and a conical hole arranged at the bottom end of the plurality of baffles;

[0022] The upper half of the tapered hole is hemispherical, wherein

[0023] The tapered hole is suitable for guiding the water flow after blocking the water flow.

[0024] Further, the blocking portion includes a first transverse hole arranged on one side of each of the baffles and a plurality of second transverse holes arranged in a fan shape on the other side of each of the baffles;

[0025] A plurality of the second transverse holes and the first transverse holes can be connected to the tapered hole, wherein

[0026] After the conical hole blocks the water flow, the water flow can be diverted through a plurality of the second transverse holes and the first transverse holes.

[0027] Furthermore, the anti-shake device for the 3D laser printer also includes a plurality of water baffles;

[0028] The plurality of water retaining plates are respectively arranged in the first transverse hole and the plurality of the second transverse holes, wherein

[0029] The plurality of water baffles are suitable for blocking water flow laterally.

[0030] Furthermore, a plurality of strip-shaped holes are vertically arranged in a straight line at one side edge of the water retaining plate, wherein;

[0031] The plurality of strip-shaped holes are suitable for dividing the water flow laterally.

[0032] Furthermore, the anti-shake device for the 3D laser printer also includes two rubber rings;

[0033] One of the rubber rings is arranged on the outside of the pressure plate and abuts against the inner wall of the water tank;

[0034] Another rubber ring is arranged on the outer wall of the printing platform and abuts against the inner wall of the storage bin.

[0035] The beneficial effect of the present invention is that the printing platform is supported by the water stored in the mechanical compartment so that the printing platform can be stably maintained at a certain height. The driving work of the piston part allows the water to be pressurized and flow out from the liquid outlet part through the diversion effect of a number of diversion pipes, thereby changing the liquid level in the mechanical compartment to make the printing platform rise. In this process, the impact force of water injection will be blocked by the blocking part to avoid water flow shaking, so that the height adjustment work of the printing platform will not shake due to the problem of vibration force, thereby ensuring the accuracy of laser printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] Figure 1 is a side partial internal schematic diagram of the present invention;

[0038] Figure 2 It is a schematic diagram of the internal structure of the piston part of the present invention;

[0039] Figure 3 is a top view of the frame tube of the present invention;

[0040] Figure 4 The present invention Figure 1 Enlarged view of point A in the middle;

[0041] Figure 5 is a schematic diagram of the interior of the baffle of the present invention from a side view;

[0042] Figure 6 is a bottom view of the baffle of the present invention;

[0043] Figure 7 It is a schematic diagram of the water retaining plate structure of the present invention.

[0044] In the figure:

[0045] 1. Storage warehouse;

[0046] 2. 3D laser printer body;

[0047] 3. Printing platform;

[0048] 4. Printing cavity;

[0049] 5. Anti-shake lifting unit; 51. Mechanical compartment;

[0050] 52, piston part; 521, water storage tank; 522, cylinder; 523, pressure plate; 524, row hole; 525, arch block;

[0051] 53. Shunt pipe;

[0052] 54, liquid outlet; 541, frame tube; 542, water outlet hole; 543, grid plate;

[0053] 55, blocking portion; 551, connecting rod; 552, baffle; 553, tapered hole; 554, first transverse hole; 555, second transverse hole;

[0054] 6. Water retaining plate;

[0055] 7. Strip holes;

[0056] 8. Rubber ring. DETAILED DESCRIPTION

[0057] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0058] like Figure 1 As shown, Figure 1 1 is a side view of a partial internal schematic diagram of the present invention; Figure 2 As shown, Figure 2 Schematic diagram of the internal structure of the piston part of the present invention; Figure 3 As shown, Figure 3 : is a top view of the frame tube of the present invention; Figure 4 As shown, Figure 4 The present invention Figure 1 The enlarged picture of A in the middle; Figure 5 As shown, Figure 5 : is a schematic diagram of the inner side view of the baffle of the present invention; Figure 6 As shown, Figure 6 : is a bottom view of the baffle of the present invention; Figure 7 As shown, Figure 7 It is a schematic diagram of the water retaining plate structure of the present invention, such as Figure 1-7 As shown, the present invention provides an anti-shake device for a 3D laser printer, comprising:

[0059] Storage bin 1; the storage bin 1 is arranged on a 3D laser printer body 2, and a printing platform 3 is arranged in the storage bin 1, and the printing platform 3 and the upper end of the storage bin 1 form a printing cavity 4, and the printing cavity 4 can store metal powder; a driven powder spreading mechanism is arranged on the upper end of the printing cavity 4, and each time a layer of powder is spread, the printing platform 3 drops one level and is formed with laser scanning. The above is the prior art, so it is not described here;

[0060] An anti-shake lifting part 5; the anti-shake lifting part 5 is arranged on the 3D laser printer body 2;

[0061] The anti-shake lifting part 5 includes a mechanical compartment 51 disposed on the 3D laser printer body 2, a piston part 52 disposed on the mechanical compartment 51, one end of a plurality of shunt pipes 53 connected to the piston part 52, a liquid outlet 54 connected to one end of the plurality of shunt pipes 53, and a blocking part 55 disposed on the upper end of the liquid outlet 54;

[0062] The liquid outlet 54 and the blocking portion 55 are both disposed in the storage bin 1;

[0063] The piston part 52 and the storage bin 1 can store water, and the printing platform 3 floats on the water surface of the storage bin 1.

[0064] By driving the piston part 52, water can be transported to the liquid outlet part 54 through the plurality of diversion pipes 53. The water is added from the liquid outlet part 54 to the storage bin 1 and then blocked by the blocking part 55, and then the printing platform 3 is pushed upward to make the printing platform 3 rise. Specifically, in this invention, the printing platform 3 is supported by the water stored in the mechanical bin 51 so as to be stably maintained at a certain height. The driving operation of the piston part 52 allows the water to be pressurized to flow out of the liquid outlet part 54 through the diversion effect of the plurality of diversion pipes 53, thereby changing the liquid level of the mechanical bin 51 and making the printing platform 3 rise. In this process, the impact force of water injection will be blocked by the blocking part 55 to avoid water flow shaking, so that the height adjustment of the printing platform 3 will not shake due to the problem of vibration force, thereby ensuring the accuracy of laser printing.

[0065] Optionally, the piston part 52 includes a water storage tank 521, a cylinder 522 disposed at the upper end of the water storage tank 521, a pressure plate 523 disposed on the output shaft of the cylinder 522, and a plurality of rows of holes 524 disposed at the lower end of the water storage tank 521;

[0066] The plurality of row holes 524 correspond to the plurality of diverter pipes 53 one by one;

[0067] The pressing plate 523 is disposed on the water storage tank 521 and abuts against the inner wall of the water storage tank 521 on the matching side;

[0068] The inner wall of the water storage tank 521 stores water, wherein

[0069] By driving the cylinder 522, the pressure plate 523 can be pressed down along the water tank 521 so that the water is pressurized and flows into the diversion pipe 53 through the plurality of row holes 524. Specifically, the cylinder 522 is fixedly connected to the upper end of the water tank 521 through an external support frame without contacting the water inside the water tank 521. The output shaft of the cylinder 522 is connected to the upper end of the pressure plate 523 through a connecting column, and the lower end of the pressure plate 523 contacts the water surface of the water tank 521. When the cylinder 522 drives the pressure plate 523 to be pressed down along the water tank 521, the water level in the water tank 521 is pressurized to drop, and the water is diverted from the plurality of diversion pipes 53 through the plurality of row holes 524, so that the force of the water is evenly transmitted and the balance of the conducted force is maintained.

[0070] Optionally, the piston portion 52 further includes a plurality of arch blocks 525 disposed at the bottom end of the water storage tank 521;

[0071] A plurality of the arch blocks 525 are located adjacent to a plurality of the row holes 524, and the boundaries of the arch blocks 525 are coplanar with a boundary of the row holes 524. Specifically, the arched portion of the arch block 525 is relatively far away from the row holes 524, and the concave portion of the arch block 525 is relatively close to the row holes 524. The arch block 525 can play a targeted guiding role in the conduction force of the water, so that the conduction force of the water will not be excessively wasted during the conduction process, thereby reducing the loss of the force.

[0072] Optionally, the liquid outlet 54 includes a frame tube 541 connected to one end of the plurality of diversion tubes 53, a plurality of water outlet holes 542 arranged at the top of the frame tube 541, and a plurality of grid plates 543 arranged at the plurality of water outlet holes 542, wherein

[0073] After water flows through the plurality of diversion pipes 53 to the frame pipes 541, it is vertically diverted through the plurality of grid plates 543 so that the water is separated and discharged through the plurality of water outlet holes 542. Specifically, the frame pipes 541 can reduce the impact force of water at multiple points under the convection effect, and the direction of the force is horizontal. The water flow with the reduced impact force is discharged from the plurality of water outlet holes 542 in the shape of a frame. The water flow can be dispersed under the force of the grid plate 543, and the direction of the force is vertical, thereby comprehensively separating the force effect of the water flow.

[0074] Optionally, the blocking portion 55 includes a plurality of connecting rods 551 and a plurality of baffles 552 connected to each other in a frame shape, and a conical hole 553 provided at the bottom end of the plurality of baffles 552;

[0075] The upper half of the tapered hole 553 is hemispherical.

[0076] The conical hole 553 is suitable for blocking the water flow and then guiding the water flow. Specifically, each connecting rod 551 is provided with two baffles 552 on both sides, and each baffle 552 is provided with two connecting rods 551 on both sides. A plurality of connecting rods 551 and a plurality of baffles 552 distributed in a frame shape can be connected to the inner wall of the water tank 521 through a plurality of external mounting rods. When the water flow is discharged from the water outlet hole 542, the vertically separated water flow impacts the conical holes 553 one by one and is buffered and deflected under the action of the hemispherical shape of the upper half, and the impact force of the water flow is slowed down again by friction.

[0077] Optionally, the blocking portion 55 includes a first transverse hole 554 disposed on one side of each baffle 552 and a plurality of second transverse holes 555 disposed in a fan-shaped manner on the other side of each baffle 552;

[0078] The plurality of second transverse holes 555 and the first transverse holes 554 can be connected to the tapered hole 553, wherein

[0079] After the conical hole 553 blocks the water flow, the water flow can be diverted through the plurality of second transverse holes 555 and the first transverse hole 554. Specifically, the output end of the first transverse hole 554 is close to the side wall of the storage bin, and the output ends of the plurality of second transverse holes 555 are far away from the side wall of the storage bin. When the water flow is buffered and changed direction, it can be diverted in the horizontal direction. The water output of the first transverse hole 554 is small and will not agitate the water surface. The water output of the plurality of second transverse holes 555 is relatively large, which offset each other during the secondary impact process, so that the water level tends to be flat under multiple auxiliary forces.

[0080] Optionally, the anti-shake device for the 3D laser printer further includes a plurality of water baffles 6;

[0081] The plurality of water retaining plates 6 are respectively arranged in the first transverse hole 554 and the plurality of the second transverse holes 555, wherein

[0082] Some of the water baffles 6 are suitable for blocking water flow laterally. Specifically, some of the water baffles 6 are cylindrical and inclined at multiple points in the first transverse hole 554 and the second transverse hole 555. The inclination direction is the same as the discharge direction of the water flow. The water flow is blocked during the discharge process and the impact force in the horizontal direction is slowed down again. The water baffle 6 can be set to an elastic material, which elastically moves with the impact force to reduce the resistance it encounters, and it can automatically reset to extend the service life of the water baffle 6.

[0083] Optionally, a plurality of strip-shaped holes 7 are vertically arranged in a straight line at one side edge of the water retaining plate 6, wherein;

[0084] The plurality of strip holes 7 are suitable for separating water flow laterally. Specifically, the plurality of strip holes 7 can diffuse and distribute the water flow in the process of the water flow impacting the water baffle 6. The water flows dispersed at multiple points are combined with each other to ensure the smoothness of the process and strengthen the multiple protections during the lifting and lowering of the printing platform 3.

[0085] Optionally, the anti-shake device for the 3D laser printer further includes two rubber rings 8;

[0086] One of the rubber rings 8 is disposed on the outside of the pressure plate 523 and abuts against the inner wall of the water tank 521;

[0087] Another rubber ring 8 is arranged on the outer wall of the printing platform 3 and against the inner wall of the storage bin 1. Specifically, the rubber ring 8 can simultaneously increase the sealing of the pressing plate 523 and the printing platform 3 during the lifting and lowering process, thereby preventing water stains from splashing onto the upper end surface of the pressing plate 523 and the upper end surface of the printing platform 3.

[0088] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An anti-shake device for a 3D laser printer, characterized in that: include: A storage bin (1); the storage bin (1) is arranged on a 3D laser printer body (2), a printing platform (3) is arranged in the storage bin (1), the printing platform (3) and the upper end of the storage bin (1) form a printing cavity (4), and the printing cavity (4) is capable of storing metal powder; An anti-shake lifting part (5); the anti-shake lifting part (5) is arranged on the 3D laser printer body (2); The anti-shake lifting part (5) comprises a mechanical compartment (51) arranged on the 3D laser printer body (2), a piston part (52) arranged on the mechanical compartment (51), one end of a plurality of shunt pipes (53) connected to the piston part (52), a liquid outlet part (54) connected to one end of the plurality of shunt pipes (53), and a blocking part (55) arranged at the upper end of the liquid outlet part (54); The liquid outlet portion (54) and the blocking portion (55) are both arranged in the storage bin (1); The piston portion (52) and the storage bin (1) are capable of storing water, and the printing platform (3) floats on the water surface of the storage bin (1), wherein The piston part (52) is driven, and water can be transported to the liquid outlet part (54) through the plurality of diverter pipes (53). The water is added from the liquid outlet part (54) to the storage bin (1), and then is blocked by the blocking part (55), and then the printing platform (3) is pushed upward, so that the printing platform (3) rises; The piston part (52) comprises a water storage tank (521), a cylinder (522) arranged at the upper end of the water storage tank (521), a pressure plate (523) arranged on the output shaft of the cylinder (522), and a plurality of rows of holes (524) arranged at the lower end of the water storage tank (521); The plurality of row holes (524) correspond one to one with the plurality of flow diversion pipes (53); The pressing plate (523) is arranged on the water storage tank (521) and abuts against the inner wall of the water storage tank (521) with its matching side; The inner wall of the water storage tank (521) stores water, wherein The cylinder (522) is driven so that the pressure plate (523) can be pressed down along the water storage tank (521) so that the water is pressurized and flows into the diversion pipe (53) through the plurality of drainage holes (524); The piston portion (52) further comprises a plurality of arch blocks (525) arranged at the bottom end of the water storage tank (521); A plurality of the arch blocks (525) are located adjacent to a plurality of the row holes (524), and a boundary of the arch block (525) is coplanar with a boundary of one of the row holes (524); The liquid outlet portion (54) comprises a frame tube (541) connected to one end of the plurality of diversion tubes (53), a plurality of water outlet holes (542) arranged at the top of the frame tube (541), and a plurality of grid plates (543) arranged at the plurality of water outlet holes (542), wherein The water flows through the plurality of diversion pipes (53) to the frame pipe (541) and then is vertically diverted through the plurality of grid plates (543) so that the water is discharged separately through the plurality of water outlet holes (542); The blocking portion (55) comprises a plurality of connecting rods (551) and a plurality of baffles (552) connected to each other in a frame shape, and a conical hole (553) arranged at the bottom ends of the plurality of baffles (552); The upper half of the tapered hole (553) is hemispherical, wherein The conical hole (553) is suitable for blocking the water flow and then diverting the water flow; The blocking portion (55) comprises a first transverse hole (554) arranged on one side of each of the baffles (552) and a plurality of second transverse holes (555) arranged in a fan shape on the other side of each of the baffles (552); A plurality of the second transverse holes (555) and the first transverse holes (554) can be connected to the tapered hole (553), wherein After the conical hole (553) blocks the water flow, the water flow can be diverted through a plurality of the second transverse holes (555) and the first transverse holes (554).

2. The anti-shake device for a 3D laser printer according to claim 1, characterized in that: The anti-shake device for a 3D laser printer further includes a plurality of water baffles (6); The plurality of water retaining plates (6) are respectively arranged in the first transverse hole (554) and the plurality of the second transverse holes (555), wherein The plurality of water baffles (6) are suitable for blocking water flow laterally.

3. The anti-shake device for a 3D laser printer as claimed in claim 2, characterized in that: A plurality of strip-shaped holes (7) are vertically arranged in a straight line at one side edge of the water retaining plate (6), wherein; The plurality of strip-shaped holes (7) are suitable for laterally dividing the water flow.

4. The anti-shake device for a 3D laser printer as claimed in claim 3, characterized in that: The anti-shake device for the 3D laser printer also includes two rubber rings (8); One of the rubber rings (8) is arranged on the outside of the pressure plate (523) and abuts against the inner wall of the water storage tank (521); Another rubber ring (8) is arranged on the outer wall of the printing platform (3) and abuts against the inner wall of the storage bin (1).

Images