3D printing powder cleaning device

Abstract

The invention provides a 3D printing powder cleaning device. The 3D printing powder cleaning device comprises a connecting base and a powder barrel detachably connected to the connecting base, and is characterized by further comprising a base, a support, a lifting mechanism, a swing mechanism and a wire harness pipe assembly; the number of the bases is two, the two bases are adjacent to each other left and right, the supports are connected to the upper portions of the bases in a one-to-one correspondence mode, and the connecting bases are located between the two supports and connected with the corresponding supports. The lifting mechanism is located between the support and the connecting base, and the connecting base can move up and down relative to the support under the action of the lifting mechanism. The swing mechanism is located between the lifting mechanism and the connecting base, and the connecting base can swing under the action of the swing mechanism. The wire harness tube assembly is located between the lifting mechanism and the swing mechanism. The 3D printing powder cleaning device is high in stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechanical technical field, specifically to a 3D printing powder cleaning device. BACKGROUND

[0002] The 3D printing powder cleaning device is a post-processing equipment specially used for powder bed fusion type 3D printing technology (such as SLS selective laser sintering, MJF multi-jet fusion, SLM metal laser melting), and its core function is to efficiently, safely and automatically remove the unsintered powder remaining on the surface and inside of the printed part, so as to prepare for subsequent polishing, dyeing, impregnation or use.

[0003] It can be seen that the 3D printing powder cleaning device is an indispensable post-processing link of powder bed 3D printing, which not only greatly improves the efficiency, but also is a key equipment to protect the health of operators and production safety. With the development of batch and industrialization of 3D printing, the intelligent, closed and integrated powder cleaning system is becoming a standard configuration of high-end manufacturing. Whether it is a nylon functional part or a metal aviation part, efficient and reliable powder cleaning is the last link to realize the closed loop from powder to finished product.

[0004] At present, most of the existing 3D printing powder cleaning devices carry out work in a closed box. Because a plurality of powder cleaning components need to be configured in the box, such as components for realizing the lifting and swinging of the 3D printed part, it is required that the box has a large enough size to accommodate these components.

[0005] During the powder cleaning work, inert gas such as nitrogen needs to be filled into the box. Due to the large size of the box, a larger amount of inert gas needs to be injected, which leads to a relatively high operation cost. In addition, the lifting and swinging components are in a dusty environment, and long-term use will affect the stability of these components. SUMMARY

[0006] The purpose of the present application is to provide a 3D printing powder cleaning device with relatively low operation cost to solve the above problems existing in the prior art.

[0007] In order to achieve the above purpose, the present application can be realized by the following technical scheme:

[0008] A 3D printing powder cleaning device, comprising a connecting seat and a powder bucket detachably connected thereto, characterized in that it further comprises a base, a support, a lifting mechanism, a swinging mechanism and a wire harness pipe assembly.

[0009] The number of the above-mentioned base is two, and the two bases are arranged left and right adjacent to each other, the above-mentioned support is connected one by one to the upper part of the base, and the connecting seat is located between the two supports and connected with the corresponding support.

[0010] The lifting mechanism is located between the support and the connecting seat, and can move the connecting seat up and down relative to the support under the action of the lifting mechanism.

[0011] The swinging mechanism is located between the lifting mechanism and the connecting seat, and the connecting seat can swing under the action of the swinging mechanism.

[0012] The wire harness pipe assembly is located between the lifting mechanism and the swinging mechanism, and the cables connected with the lifting mechanism and the swinging mechanism are located in the wire harness pipe assembly. Under the action of the wire harness pipe assembly, the corresponding cables can be compactly wrapped and arranged, and large-scale swinging of the corresponding cables during the action of the swinging mechanism can be avoided.

[0013] In the 3D printing powder cleaning device, a reinforcing plate and a reinforcing rod are further included. The reinforcing plate is located between the two bases and is fixedly connected with the corresponding base at the end portion. The reinforcing rod is located between the upper portions of the two supports and is fixedly connected with the corresponding support at the end portion.

[0014] In the 3D printing powder cleaning device, the lifting mechanism includes a driving member one, a sliding plate, a guide rail and a sliding block. The guide rail is fixedly connected to the side portion of the support. The sliding block is fixedly connected to the inner side of the sliding plate and is detachably connected to the guide rail. The connecting seat is connected to the outer side of the sliding plate. The driving member one is fixedly connected to the support and is connected with the sliding plate. Under the action of the guide rail and the sliding block, the sliding plate can smoothly move up and down when being driven by the driving member one.

[0015] In the 3D printing powder cleaning device, the number of guide rails is two, and the two guide rails are symmetrically and fixedly connected to the two sides of the support. Each guide rail is detachably connected with a corresponding sliding block.

[0016] In the 3D printing powder cleaning device, the swinging mechanism includes a connecting seat, a fixed ring, a movable ring and a driving member two. The fixed ring is fixed to the support. The movable ring is located in the fixed ring and a bearing is arranged between the fixed ring and the movable ring. The connecting seat is fixedly connected with the movable ring. The driving member two is connected to the support and can drive the movable ring to rotate a set angle relative to the fixed ring.

[0017] In the 3D printing powder cleaning device, the number of supports is two. Each support has a corresponding fixed ring, movable ring and driving member two. The two ends of the connecting seat are fixedly connected with the movable rings on the corresponding supports.

[0018] In the 3D printing powder cleaning device, the wire harness pipe assembly is arranged between the sliding plate and the connecting seat and includes a positioning rod, an elastic connecting member and a bellows. The positioning rod is arranged in parallel with the support. The bellows includes a connecting end one for connecting with the connecting seat and a connecting end two connected to the sliding plate. The middle portion of the bellows is an arch-shaped deformation segment. The deformation segment is connected to the positioning rod through the elastic connecting member.

[0019] When the connecting seat is in the initial state, the elastic connecting piece is in the contracted state, and the elastic connecting piece in the contracted state lifts the deformation section to the highest position;

[0020] When the connecting seat swings, the elastic connecting piece is in the stretched state, and the elastic connecting piece in the stretched state can make the deformation section swing with the connecting seat.

[0021] In the 3D printing powder cleaning device, a manual operation assembly is further included, the manual operation assembly is arranged on the side of the powder bucket, and the manual operation assembly includes an operation port, an operation box, a glove, an inner cover plate and an outer cover plate.

[0022] The outer end of the operation box is located outside the powder bucket, and a through hole one is formed in the outer end of the operation box;

[0023] The inner end of the operation box is located inside the powder bucket, and a through hole two is formed in the inner end of the operation box;

[0024] The glove is located in the operation box, and a wrist opening of the glove is fixed to the through hole one;

[0025] The outer cover plate is connected to the outer end of the operation box, and the outer cover plate can open and close the through hole one, and the inner cover plate is connected to the inner end of the operation box, and the inner cover plate can open and close the through hole two.

[0026] In the 3D printing powder cleaning device, a locking mechanism is further included, the 3D printing powder cleaning device includes a connecting seat and a powder bucket in the form of a cylinder, the powder bucket is hollow inside and has an open lower end, the connecting seat has a working panel matched with the lower end of the powder bucket, the lower end of the powder bucket has a flange, the locking mechanism is located between the flange and the working panel, and includes a lock pin made of flexible material and a lock cylinder made of metal material, the number of the lock pins is several, and the several lock pins are uniformly distributed on the flange in the circumferential direction, the lock cylinder is fixed to the working panel, and the lock cylinder corresponds to the lock pin one by one;

[0027] When the powder bucket is connected to the working panel, each lock pin is connected to the corresponding lock cylinder;

[0028] The lower end of the lock cylinder is used to be connected to the air pump, when the air pump continuously inputs gas to the lock cylinder, the lock pin and the lock cylinder are in the unlocked state, and the powder bucket can be separated from the working panel under the action of an external force;

[0029] When the air pump is disconnected, the lock pin and the lock cylinder connected together are in the locked state.

[0030] In the 3D printing powder cleaning device, the working panel has an annular recessed sealing ring groove, and the sealing ring groove has a sealing ring, and when the powder bucket is buckled on the working panel, the sealing ring can be tightly pressed between the flange plate and the working panel.

[0031] Compared with the prior art, the 3D printing powder cleaning device can minimize the size of the powder bucket because the lifting mechanism and the swinging mechanism are located outside the powder bucket. During the powder cleaning operation of the 3D printing part, only a small amount of inert gas needs to be input into the powder bucket because the size of the powder bucket is relatively small, which appropriately reduces the powder cleaning operation cost.

[0032] Meanwhile, the lifting mechanism and the swinging mechanism are not in the dust environment, which appropriately improves the stability of the entire powder cleaning device and has relatively high practical value.

[0033] In addition, the wire harness tube assembly can avoid large and rapid swinging of the wire harness tube during swinging of the connecting seat, effectively improving the stability and avoiding jamming and rapid damage of the wire harness tube assembly. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the 3D printing powder cleaning device.

[0035] Figure 2 is Figure 1 is a schematic diagram of the partial structure at A in

[0036] Figure 3 is a schematic diagram of the bracket in the lifting mechanism.

[0037] Figure 4 is a schematic diagram of the driving part I.

[0038] Figure 5 is a schematic diagram of the driving part I.

[0039] Figure 6 is Figure 4 is a schematic diagram of the partial structure at C in

[0040] Figure 7 is a schematic diagram of the swinging mechanism.

[0041] Figure 8 is Figure 7 is a schematic diagram of the partial structure at B in

[0042] Figure 9 is a schematic diagram of the 3D printing powder cleaning device with the wire harness tube assembly.

[0043] Figure 10 is a schematic diagram of the wire harness tube assembly in the 3D printing powder cleaning device.

[0044] Figure 11 is the exploded structure diagram of the wire harness tube assembly in the 3D printing powder cleaning device.

[0045] Figure 12 is Figure 10 is the partial structure diagram at D in

[0046] Figure 13 is the structure diagram of the elastic connecting piece.

[0047] Figure 14 is the perspective structure diagram of the manual operation assembly.

[0048] Figure 15 is the front view structure diagram of the manual operation assembly.

[0049] Figure 16 is the side view structure diagram of the manual operation assembly.

[0050] Figure 17 is Figure 16 is the sectional structure diagram in the direction of E-E in

[0051] Figure 18 is the bottom view structure diagram of the manual operation assembly of the powder cleaning device.

[0052] Figure 19 is the structure diagram of the manual operation assembly of the powder cleaning device, in which the inner cover plate is opened and the glove is stretched out.

[0053] Figure 20 is Figure 14 is the partial structure diagram at F in

[0054] Figure 21 is Figure 17 is the partial structure diagram at G in

[0055] Figure 22 is the perspective structure diagram of the 3D printing powder cleaning device.

[0056] Figure 23 is the perspective structure diagram of the 3D printing powder cleaning device in another direction.

[0057] Figure 24 is the perspective structure diagram of the work panel.

[0058] Figure 25 is the sectional structure diagram of the 3D printing powder cleaning device.

[0059] Figure 26 is Figure 25 is the partial structure diagram at H in

[0060] Figure 27 This is a cross-sectional view of the structure after the locking pin and the locking cylinder are connected.

[0061] Figure 28 This is a cross-sectional view of the structure after the locking pin has disengaged from the locking cylinder.

[0062] In the picture:

[0063] 1. Bracket; 14. Fixed ring; 15. Moving ring; 16. Bearing; 2. Connecting seat; 3. Powder bucket; 13. Reinforcing rod; 5. Slide plate; 51. Side door; 52. Step; 53. Positioning foot; 54. Reinforcing rib; 6. Guide rail; 7. Slider; 70. Reinforcing plate; 80. Base; 4. Lifting motor; 6. Guide rail; 61. Fastening edge; 71. Dustproof scraper; 8. Coupling; 9. Lead screw; 10. Lead screw nut; 11. Upper accordion cover; 12. Lower accordion cover; 13. Reinforcing rod; 131. Connecting section; 14. Reducer; 60. Heat dissipation vent; 17. Swing motor; 18. Gear one; 19. Gear two; 20. Fastener; 21. Positioning rod; 211. Rod section one; 212. Rod section two; 22. Bellows; 221. Connecting end one; 22 2. Connecting end two; 223. Deformation section; 24. Housing; 241. Rope hole; 25. Thread pulley; 26. Torsion spring; 27. Pull rope; 28. Connecting rope; 29. ​​Hook; 30. Reinforcing rib; 41. Operating port; 42. Operating box; 421. Housing one; 4211. Through hole one; 422. Housing two; 4221. Through hole two; 43. Glove; 44. Inner cover plate; 441. Handle; 45. Outer cover plate; 451. Hinge; 47. Lock; 471. Lock seat; 472. Lock plate; 31. Flange; 32. Locking pin; 321. Positioning section; 322. Sealing section one; 323. Sealing section two; 324. Sealing section three; 33. Lock cylinder; 34. Positioning hole one; 35. Positioning hole two; 36. Sealing ring groove; 37. Working panel; 38. Sealing ring. Detailed Implementation

[0064] The following are specific embodiments of the present invention, which, together with the accompanying drawings, will further describe the technical solution of the present invention.

[0065] like Figures 1-28 As shown, the 3D printing powder cleaning device includes a connecting seat 2 and a powder bucket 3 detachably connected thereto, as well as a base 80, a bracket 1, a lifting mechanism, a swinging mechanism, and a wire harness assembly.

[0066] The number of the aforementioned bases 80 is two, and the two bases 80 are arranged adjacent to each other. The aforementioned brackets 1 are connected to the upper part of the bases 80 in a one-to-one correspondence. The connecting seat 2 is located between the two brackets 1 and is connected to the corresponding bracket 1.

[0067] The lifting mechanism is located between the support 1 and the connecting seat 2, and under the action of the lifting mechanism, the connecting seat 2 can move up and down relative to the support 1.

[0068] The swinging mechanism is located between the lifting mechanism and the connecting seat 2, and under the action of the swinging mechanism, the connecting seat 2 can swing.

[0069] The wire harness pipe assembly is located between the lifting mechanism and the swinging mechanism, and the cables connected with the lifting mechanism and the swinging mechanism are located in the wire harness pipe assembly. Under the action of the wire harness pipe assembly, not only can the corresponding cables be compactly wrapped and arranged, but also can avoid the corresponding cables from swinging greatly during the action of the swinging mechanism.

[0070] It also includes a reinforcing plate 70 and a reinforcing rod 13. The reinforcing plate 70 is located between the two bases 80, and the end of the reinforcing plate 70 is fixedly connected with the corresponding base 80. The reinforcing rod 13 is located between the upper parts of the two supports 1, and the end of the reinforcing rod 13 is fixedly connected with the corresponding support 1.

[0071] The base 80 supports and connects the bottom of the support 1, and the connecting seat 2 is connected between the two supports 1.

[0072] Since the lifting mechanism and the swinging mechanism are arranged between the end of the connecting seat 2 and the corresponding support 1, the connecting seat 2 can move up and down stably and swing appropriately.

[0073] Since the powder bucket 3 is connected to the connecting seat 2, the powder bucket 3 is indirectly moved up and down stably and swings appropriately.

[0074] The reinforcing plate 70 connects the two bases 80, and the reinforcing rod 13 stably connects the upper parts of the supports 1. Such a structure ensures the strength and structural stability of the entire device, and ultimately ensures that the powder bucket 3 can move up and down stably and swing appropriately.

[0075] The support 1 has an internal cavity, and the lifting mechanism and the swinging mechanism are located in the support 1.

[0076] Such a structure can avoid the lifting mechanism and the swinging mechanism from being exposed, and effectively improve the structural compactness of the entire device.

[0077] The support 1 has a side door 51 which can be opened and closed.

[0078] After the side door 51 is closed, the lifting mechanism and the swinging mechanism can be prevented from being affected and disturbed by the outside world. When the lifting mechanism and the swinging mechanism need to be maintained and repaired, the side door 51 can be opened.

[0079] The base 80 has a step ladder step 52, and the step ladder step 52 is adjacent to the side door 51.

[0080] Because the base 80 is relatively high, the corresponding maintenance or operating personnel can conveniently enter the side door 51 under the action of the stepped ladder steps 52.

[0081] The base 80 has positioning feet 53 on the inner side, and the positioning feet 53 have fasteners for fixing the positioning feet 53 at the working site.

[0082] The positioning feet 53 are used to stably fix the base 80 at the working site, and the positioning feet 80 are usually fixed on the ground of the working site.

[0083] The positioning feet 80 have an L-shaped cross section, and the side of the positioning feet 80 is in surface contact with the side of the base 80 and is fixedly connected to the base 80, and the lower part of the positioning feet 80 can be in surface contact with the working site.

[0084] Such a structure can stably fix the positioning feet 53 at the base 80 and the ground.

[0085] The positioning feet 53 have reinforcing ribs 54 fixedly connected to the two inner sides of the L-shaped positioning feet 53.

[0086] The reinforcing ribs 54 can effectively improve the strength of the entire positioning feet 53.

[0087] The number of the positioning feet 53 is several.

[0088] The plurality of positioning feet 53 can effectively improve the stability of the connection between the base 80 and the ground.

[0089] The lifting mechanism is located between the support 1 and the connecting seat 2, and includes a driving member one, a sliding plate 5, a guide rail 6, and a sliding block 7. The guide rail 6 is fixedly connected to the side of the support 1, the sliding block 7 is fixedly connected to the inner side of the sliding plate 5 and is snap-fit connected to the guide rail 6, the connecting seat 2 is connected to the outer side of the sliding plate 5, and the driving member one is fixedly connected to the inside of the support 1 and is connected to the sliding plate 5. Under the action of the guide rail 6 and the sliding block 7, the sliding plate 5 can stably move up and down when the sliding plate 5 is driven by the driving member one.

[0090] The connecting seat 2 is indirectly connected to the guide rail 6 of the support 1 through the sliding plate 5, and under the action of the sliding block 7 and the guide rail 6, the sliding plate 5 can stably move up and down.

[0091] Specifically, the sliding plate 5 is connected to the driving member one and the connecting seat 2. Therefore, under the action of the sliding block 7 and the guide rail 6, the force applied to the sliding plate 5 by the driving member one can make the connecting seat 2 stably move up and down.

[0092] Since the powder bucket 3 is connected to the connecting seat 2, the powder bucket 3 can finally stably move up and down.

[0093] Since the size of the powder bucket 3 is relatively large, the diameter is 1-4 meters. Therefore, only when the powder bucket 3 is lowered to the lowest position, the operator can conveniently open and close the powder bucket 3 and conveniently install or take the 3D printed part in the powder bucket 3.

[0094] Conversely, when the powder is cleaned, the connecting seat 2 drives the powder bucket 3 to move up to the highest position, at this time, the powder bucket 3 is away from the lower part of the support 1.

[0095] The number of the guide rails 6 is two, and the two guide rails 6 are symmetrically fixedly connected at the two sides of the support 1. The corresponding sliding blocks 7 are buckled on each guide rail 6.

[0096] The two guide rails 6 are connected with the sliding plate 5 at the same time, which further improves the connection and guiding stability, and ensures that the sliding plate 5 can move up and down stably.

[0097] Each guide rail 6 has a plurality of adjacent sliding blocks 7, and the sliding blocks 7 on the same guide rail 6 are fixedly connected to the sliding plate 5.

[0098] Since the size of the powder bucket 3 is relatively large, the size of the corresponding connecting seat 2 and the sliding plate 5 will also be relatively large, therefore, the large-size sliding plate 5 adopts a plurality of sliding blocks 7, which can stably connect the sliding plate 5 with the guide rail 6.

[0099] The driving part one includes a lifting motor 4, a shaft coupling 8, a speed reducer 14, a lead screw 9 and a lead screw nut 10. The lifting motor 4 is fixedly connected in the support 1, the lead screw 9 is connected with the speed reducer 14 through the shaft coupling 8, the motor 4 is connected with the speed reducer 14, the middle part of the lead screw 9 is arranged on the lead screw nut 10 and is threadedly connected with the lead screw nut 10, and the lead screw nut 10 is fixedly connected to the inner side of the sliding plate 5.

[0100] The power output by the lifting motor 4 is stably transmitted to the lead screw 9 through the shaft coupling 8 and the speed reducer 14, and the rotating lead screw 9 cannot move up and down. Therefore, the lead screw nut 10 sleeved on the lead screw 9 moves up and down relative to the lead screw 9. Since the lead screw nut 10 is fixedly connected with the sliding plate 5, the sliding plate 5 finally moves up and down stably.

[0101] Since the powder bucket 3 is indirectly connected to the sliding plate 5 through the connecting seat 2, the powder bucket 3 can finally move up and down stably.

[0102] Of course, the lead screw 9 and the lead screw nut 10 can realize self-locking. In this embodiment, the lead screw 9 is a trapezoidal lead screw which can realize self-locking.

[0103] The self-locking of the lead screw 9 refers to that in the case that there is no external driving force (such as power failure of the lifting motor), the transmission system composed of the lead screw and the lead screw nut can rely on its own friction to prevent the load from moving in the opposite direction (i.e. "automatic sliding down" or "reverse rotation") due to gravity or external force. This feature is crucial for safety and position retention.

[0104] Whether the lead screw 9 can be self-locking is a routine technical means for those skilled in the art, so the size relationship between the lead angle and the friction angle in the lead screw 9 is not described in the embodiment.

[0105] According to the actual situation, a non-self-locking scheme can also be used. That is, the lead screw 9 is a ball screw, and the lifting motor 4 is a servo motor with a brake. At the same time, the lifting motor 4 with a brake function is a commercial purchase part, so the specific technical features of the lifting motor 4 with a brake function are not described in the implementation.

[0106] The inner end of the guide rail 6 is fixed to the support 1 by a fastener, and the outer end of the guide rail 6 has a buckling edge 61 protruding to both sides. The inner side of the sliding block 7 has a dust scraping plate 71 matched with the outer end of the guide rail 6, and the dust scraping plate 71 of the sliding block 7 is buckled and connected to the outer end of the guide rail 6.

[0107] The sliding block 7 and the guide rail 6 adopt a structure similar to a dovetail groove, which can prevent the sliding block 7 from falling off the side of the guide rail 6. Finally, it ensures that the sliding block 7 can move smoothly along the guide rail 6.

[0108] The edge of the sliding plate 5 is flush with the edge of the support 1, and further includes an upper piano case 11 and a lower piano case 12. The two ends of the upper piano case 11 are respectively fixed to the upper part of the support 1 and the upper part of the sliding plate 5. The two ends of the lower piano case 12 are respectively fixed to the lower part of the support 1 and the lower part of the sliding plate 5.

[0109] With the movement of the sliding plate 5, the upper piano case 11 and the lower piano case 12 are correspondingly stretched or contracted. That is, no matter where the sliding plate 5 moves to the support 1, the support 1 can be covered on the side under the action of the upper piano case 11 and the lower piano case 12, preventing sundries from entering the lead screw 9.

[0110] The top of the support 1 has a heat dissipation air port 11, and the lifting motor 4 is located in the support 1 and is close to the heat dissipation air port 11.

[0111] A relatively high temperature is generated at the lifting motor 4 during operation, and the heat dissipation performance of the lifting motor 4 can be improved under the action of the heat dissipation air port 11.

[0112] The number of the support 1 is two, and each support 1 has a corresponding sliding plate 5. The connecting seat 2 is located between the two supports 1, and the end of the connecting seat 2 is connected to the corresponding sliding plate 5.

[0113] The two supports 1 share the stress, which can ensure that the connecting seat 2 is stably connected between the two supports 1.

[0114] It further includes a reinforcing rod 13, which is away from the connecting seat 2, and the two ends of the reinforcing rod 13 are respectively fixed to the corresponding support 1.

[0115] The lower end of the support 1 is fixedly connected to the ground, and the upper ends of the two supports 1 are fixedly connected by the reinforcing rod 13, which can effectively improve the strength of the entire device.

[0116] The end of the reinforcing rod 13 has a connecting section 131 folded to the side thereof, and the connecting section 131 is fixedly connected to the side of the corresponding support 1.

[0117] The connecting section 131 has two functions:

[0118] First, the reinforcing rod 13 can be stably connected to the two supports 1.

[0119] Second, the reinforcing rod 13 can be as far away from the supports 1 as possible.

[0120] The swing mechanism includes a fixed ring, a movable ring, and a second driving member, the fixed ring is fixed on the support, a bearing is arranged between the fixed ring and the movable ring, the connecting seat is fixedly connected to the movable ring, and the second driving member is connected in the support and can drive the movable ring to rotate relative to the fixed ring by a set angle.

[0121] The swing mechanism includes a connecting seat 2, a fixed ring 14, a movable ring 15, and a second driving member, the fixed ring 14 is fixed on the support 1, the movable ring 15 is located in the fixed ring 14 and a bearing 16 is arranged between the fixed ring 14 and the movable ring 15, the connecting seat 2 is fixedly connected to the movable ring 15, and the second driving member is connected in the support 1 and can drive the movable ring 15 to rotate relative to the fixed ring 14 by a set angle.

[0122] Under the action of the bearing 16, the movable ring 15 can smoothly swing relative to the fixed ring 14.

[0123] That is, the movable ring 15 is fixedly connected to the connecting seat 2, the fixed ring 14 is connected to the support 1, and the powder bucket 3 is connected to the connecting seat 2. Therefore, during the swing of the movable ring 15 driven by the driving member, the powder bucket 3 can finally swing together with the connecting seat 2.

[0124] During the cleaning operation of the 3D printed part, the dust on the 3D printed part is mainly removed by the high-pressure gas flow output by the air nozzle in the powder bucket 3. Since the 3D printed part in the powder bucket 3 can swing together with the powder bucket 3, the 3D printed part can assist the air nozzle to remove the dust on the 3D printed part during the swing of the 3D printed part, that is, the high-pressure gas flow actively output by the air nozzle and the self-swinging of the 3D printed part, so as to stably remove the dust attached to the 3D printed part.

[0125] The number of the supports 1 is two, each support 1 has a corresponding fixed ring 14, movable ring 15, and second driving member, and the two ends of the connecting seat 2 are fixedly connected to the movable rings 15 on the corresponding supports 1.

[0126] Two supports 1 are respectively connected at two ends of the connecting seat 2 to stably support the connecting seat 2.

[0127] The connecting seat 2 is in a U shape, and the outer side of the U-shaped end of the connecting seat 2 is fixedly connected with the movable ring 15, and the U-shaped notch of the connecting seat 2 is used for connecting the powder bucket 3.

[0128] Such a structure can make the connecting seat 2 and the powder bucket 3 connect, and the gravity centers of the two are concentrated at a lower position, so that the powder bucket 3 can stably swing.

[0129] The driving member two includes a swing motor 17, a gear one 18 and a gear two 19, the movable ring 15 is an inner tooth ring with a plurality of teeth on the inner side, the gear one 18 is fixedly connected to the rotating shaft of the swing motor 17 and meshes with the inner side of the movable ring 15, the gear two 19 is movably connected to the support 1 and meshes with the inner side of the movable ring 15, and the gear one 18 is away from the gear two 19.

[0130] During the reciprocating rotation of the swing motor 17 driving the gear one 18, the gear one 18 meshes with the movable ring 15, and finally can drive the powder bucket 3 to smoothly swing.

[0131] The gear two 19 meshes with the movable ring 15 and plays a supporting role.

[0132] Of course, in order to further improve the support stability, the number of gear two 19 can be set to be multiple, and each gear two 19 meshes with the inner side of the movable ring 15.

[0133] The movable ring 15 is uniformly distributed with a plurality of fasteners 20 along the circumference, and the movable ring 15 is fixedly connected with the connecting seat 2 through the plurality of fasteners 20.

[0134] Such a structure can stably and fixedly connect the movable ring 15 and the connecting seat 2.

[0135] It also includes a driving member one, a sliding plate 5, a guide rail 6 and a sliding block 7, the guide rail 6 is fixedly connected to the side of the support 1, the sliding block 7 is fixedly connected to the inner side of the sliding plate 5 and is buckled and connected to the guide rail 6, the connecting seat 2 is connected to the outer side of the sliding plate 5, the driving member one is fixedly connected in the support 1 and connected with the sliding plate 5, and under the action of the guide rail 6 and the sliding block 7, the sliding plate 5 can move up and down smoothly under the action of the driving member one, and the fixed ring 14 and the driving member two are fixedly connected to the sliding plate 5.

[0136] The driving member one comprises a lifting motor 4, a shaft coupling 8, a lead screw 9 and a lead screw nut 10, the lifting motor 4 is fixedly connected in the support 1, the upper end of the lead screw 9 is connected with the rotating shaft of the lifting motor 4 through the shaft coupling 8, the middle part of the lead screw 9 is arranged on the lead screw nut 10 and is threadedly connected with the lead screw nut 10, and the lead screw nut 10 is fixedly connected to the inner side of the sliding plate 5.

[0137] The connecting seat 2 is indirectly connected to the guide rail 6 of the support 1 through the sliding plate 5, and under the action of the sliding block 7 and the guide rail 6, the sliding plate 5 can stably move up and down.

[0138] Specifically, the sliding plate 5 is connected with the driving member one and the connecting seat 2 at the same time. Therefore, under the action of the sliding block 7 and the guide rail 6, the driving member one can apply a force to the sliding plate 5 to make the connecting seat 2 stably move up and down.

[0139] Since the powder bucket 3 is connected to the connecting seat 2, the powder bucket 3 can finally stably move up and down.

[0140] Since the powder bucket 3 has a relatively large size, the diameter is 1-4 meters. Therefore, only when the powder bucket 3 moves down to the lowest position, the work personnel can conveniently open and close the powder bucket 3 and conveniently install or take the 3D printed parts in the powder bucket 3.

[0141] Conversely, when cleaning the powder, the connecting seat 2 drives the powder bucket 3 to move up to the highest position, at this time, the powder bucket 3 is far away from the lower part of the support 1, avoiding occupying too much space during work.

[0142] The power output by the lifting motor 4 is stably transmitted to the lead screw 9 through the shaft coupling 8, and the rotating lead screw 9 cannot move up and down. Therefore, the lead screw nut 10 sleeved on the lead screw 9 can move up and down relative to the lead screw 9, and since the lead screw nut 10 is fixedly connected with the sliding plate 5, the sliding plate 5 can finally stably move up and down.

[0143] Since the powder bucket 3 is indirectly connected to the sliding plate 5 through the connecting seat 2, the powder bucket 3 can finally stably move up and down.

[0144] Of course, the lead screw 9 and the lead screw nut 10 can realize self-locking.

[0145] The self-locking of the lead screw 9 refers to that in the case that there is no external driving force (such as the power-off of the lifting motor), the transmission system composed of the lead screw and the lead screw nut can rely on the friction force itself to prevent the load from moving in the reverse direction (i.e. "automatic sliding down" or "reverse rotation") due to gravity or external force. This feature is crucial for safety and position keeping.

[0146] Whether the lead screw 9 can self-lock is a routine technical means for those skilled in the art, therefore, the size relationship between the lead angle and the friction angle of the lead screw 9 will not be described in the embodiment.

[0147] The slide plate edge is flush with the bracket edge, and further comprises an upper piano case and a lower piano case, two ends of the upper piano case are fixedly connected to the upper part of the bracket and the upper part of the slide plate respectively, and two ends of the lower piano case are fixedly connected to the lower part of the bracket and the lower part of the slide plate respectively.

[0148] With the movement of the slide plate 5, the upper piano case 11 and the lower piano case 12 are correspondingly stretched or contracted. That is, no matter where the slide plate 5 moves to the bracket 1, the bracket 1 can be covered on the side under the action of the upper piano case 11 and the lower piano case 12, so as to avoid sundries from entering the screw rod 9.

[0149] Further comprising a reinforcing rod 13, the reinforcing rod 13 is away from the connecting seat 2, and two ends of the reinforcing rod 13 are fixedly connected to the corresponding bracket 1.

[0150] The end of the reinforcing rod 13 has a connecting section 131 folded to the side thereof, and the connecting section 131 is fixedly connected to the side of the corresponding bracket 1.

[0151] The lower end of the bracket 1 is fixedly connected to the ground, and the upper ends of the two brackets 1 are fixedly connected through the reinforcing rod 13, which can effectively improve the strength of the whole device.

[0152] The connecting section 131 has two functions:

[0153] First, the reinforcing rod 13 can be stably connected to the two brackets 1;

[0154] Second, the reinforcing rod 13 can be as far away from the bracket 1 as possible.

[0155] The 3D printing powder cleaning device comprises a vertical bracket 1 and a connecting seat 2 for connecting a powder bucket 3, the bracket 1 has a slide plate 5 capable of moving up and down thereon, and the connecting seat 2 is movably connected to the slide plate 5.

[0156] The wire harness pipe assembly in the 3D printing powder cleaning device is arranged between the slide plate 5 and the connecting seat 2, comprising a positioning rod 21, an elastic connecting piece and a corrugated pipe 22, the positioning rod 21 is arranged in parallel with the bracket 1, the corrugated pipe 22 comprises a connecting end one 221 for connecting with the connecting seat 2 and a connecting end two 222 connected to the slide plate 5, a deformation section 223 in an arch shape is arranged in the middle of the corrugated pipe 22, and the deformation section 223 is connected to the positioning rod 21 through the elastic connecting piece;

[0157] When the connecting seat 2 is in the initial state, the elastic connecting piece is in the contraction state, and the elastic connecting piece in the contraction state lifts the deformation section 223 to the highest position;

[0158] When the connecting seat 2 swings, the elastic connecting piece is in the stretching state, and the elastic connecting piece in the stretching state can make the deformation section 223 move downward with the slide plate.

[0159] The positioning rod 21 provides sufficient position for the elastic connecting member to be connected, and the deformed section 223 of the bellows 22 is connected with the positioning rod 21 through the elastic connecting member. Therefore, the deformed section 223 is always subjected to the elastic traction force of the elastic connecting member.

[0160] That is, the connecting end 221 of the bellows 22 will swing correspondingly during the movement of the sliding plate 5. At this time, the deformed section 223 can be prevented from swinging downward rapidly under the action of the elastic connecting member, so that the bellows 22 can be prevented from contacting the support 1 as much as possible, and the stability can be improved effectively.

[0161] Meanwhile, the swinging stroke of the deformed section 223 can also be reduced under the action of the elastic connecting member, and the bellows 22 can be further prevented from contacting the support 1.

[0162] The elastic connecting member comprises a shell 24 with a cavity inside, the shell 24 has a wire wheel 25, a torsion spring 26 and a pull rope 27 inside, the wire wheel 25 is movably connected in the shell 24, the torsion spring 26 is connected between the wire wheel 25 and the shell 24, the inner end of the pull rope 27 is wound and connected on the wire wheel 25, the outer end of the pull rope 27 extends out of the shell 24 and is connected with the deformed section of the bellows 22, and the pull rope 27 has a tendency to be wound in the shell 24 under the elastic force of the torsion spring 26.

[0163] The wire wheel 25 has a tendency to wind the pull rope 27 under the elastic force of the torsion spring 26. When the bellows 22 swings downward, the pulling force of the bellows 22 can force the pull rope 27 to overcome the elastic force of the torsion spring 26, and the pull rope 27 is pulled out by a set length.

[0164] Further comprising a connecting rope 28 and a hook 29, the shell 24 is connected to the upper end of the positioning rod 21 through the connecting rope 28, and the hook 29 is connected to the outer end of the pull rope 27.

[0165] The connecting rope 28 can movably connect the shell 24 to the positioning rod 21 stably. The shell 24 can be movably adapted to the swing of the deformed section 223.

[0166] The upper part of the shell 24 has two rope holes 241, the middle part of the connecting rope 28 is arranged in the two rope holes 241, and the two ends of the pull rope 27 are fixed to the upper part of the positioning rod 21.

[0167] Such a structure can stably connect the shell 24 to the positioning rod 21.

[0168] The hook 29 is in a spiral shape, and the hook 29 is sleeved on the deformed section 223 of the bellows 22.

[0169] Such a structure can effectively increase the connection area of the hook 29 and the deformed section 223, and finally ensure the connection stability of the two.

[0170] The positioning rod 21 comprises a vertically arranged rod section one 211 and a laterally arranged rod section two 212, the inner end of the rod section two 212 is fixedly connected at the upper end of the rod section one 211, and the end of the connecting rope 28 is fixedly connected at the outer end of the rod section two 212.

[0171] The connection between the rod section two 212 and the rod section one 211 is provided with a reinforcing rib 30.

[0172] Such a structure can make the shell 24 as far away from the rod section one 211 as possible, so as to avoid the shell 24 from touching the positioning rod 21 or the support 1.

[0173] The positioning rod 21 is fixedly connected to the sliding plate 5.

[0174] Such a structure ensures that the deformation section 223 does not swing greatly. Moreover, the connecting seat 2 and the elastic connecting piece are synchronously lifted during the lifting of the sliding plate 5.

[0175] The support 1 is internally hollow, and the positioning rod 21 and the elastic connecting piece are located in the support 1.

[0176] In this way, the compactness of the structure can be improved, and the parts are prevented from being exposed.

[0177] The number of the elastic connecting pieces is several, and the several elastic connecting pieces are uniformly arranged along the length direction of the deformation section 223.

[0178] The plurality of elastic connecting pieces can effectively improve the connection stability of the deformation section 223.

[0179] The corrugated tube in the wire harness tube assembly in the 3D printing powder cleaning device is used for sleeving corresponding wires and air path tubes, and the corrugated tube can effectively protect and compactly arrange the wires and the air path tubes.

[0180] Since the deformation section in the corrugated tube is connected to the positioning rod through the elastic connecting piece, when the connecting end one of the corrugated tube swings with the connecting seat, the elastic connecting piece is stretched. That is, the elastic connecting piece always applies an elastic action tension to the deformation section of the corrugated tube, avoids the end of the corrugated tube from swinging greatly during the swinging of the connecting seat, and also avoids the corrugated tube from touching the inside of the support as much as possible, so that the stability is relatively high.

[0181] The manual operation assembly of the powder cleaning device is arranged at the side of the powder barrel 3, and the manual operation assembly comprises an operation port 41, an operation box 42, a glove 43, an inner cover plate 44 and an outer cover plate 45. The operation port 41 penetrates the side of the powder barrel 3, and the operation box 42 is internally hollow and is fixedly connected at the operation port 41.

[0182] The outer end of the operation box 42 is located outside the powder barrel 3, and the outer end is provided with a through hole one 4211.

[0183] The inner end of the operation box 42 is located inside the powder bucket 3 and has a through hole two 4221 at its inner end;

[0184] The glove 43 is located in the operation box 42, and the wrist opening of the glove 43 is fixed at the through hole one 4211;

[0185] The outer cover plate 45 is connected at the outer end of the operation box 42, and the outer cover plate 45 can open and close the through hole one 4211; the inner cover plate 44 is connected at the inner end of the operation box 42, and the inner cover plate 44 can open and close the through hole two 4221.

[0186] When the outer cover plate 45 closes the through hole one 4211 and the inner cover plate 44 closes the through hole two 4221, the glove 43 is in the sealed operation box 42. At this time, the workpiece in the powder bucket 3 carries out the powder cleaning operation by means of the high-pressure air nozzle, and the glove in the operation box 42 will not be affected by the airflow impact in the powder bucket 3.

[0187] On the contrary, when the inner cover plate 44 and the outer cover plate 45 are both opened, the hands of the operator are inserted into the glove 43. Under the isolation of the glove, auxiliary powder cleaning operation can be carried out.

[0188] In this embodiment, the glove 43 is a rubber glove. Since the glove 43 is a commercial purchase part, the technical features of the glove 43 are not described in detail.

[0189] The number of through holes one 4211 is two and they are arranged adjacent to each other on the left and right, and the number of through holes two 4221 is two and they are arranged one by one corresponding to the through holes one 4211.

[0190] The two through holes one 4211 are used to match the operation of the operator's hands. Of course, the through holes two 4221 are arranged one by one corresponding to the through holes one 4211, and finally the glove 43 in the operation box 42 can be stably worn by the operator.

[0191] The outer cover plate 45 is in the shape of a long plate, and the upper part of the outer cover plate 45 is hinged to the operation box 42. In the initial state, the outer cover plate 45 is lowered to cover the two through holes one 4211.

[0192] The hinge between the outer cover plate 45 and the operation box 42 has a damping hinge. That is, the outer cover plate 45 can be positioned at any opening angle position.

[0193] Avoid sudden lowering of the outer cover plate 45 during operation.

[0194] The operation box 42 also has a lock catch 47, which can be connected to the lower part of the outer cover plate 45 when the outer cover plate 45 covers the two through holes one 4211.

[0195] The outer cover plate 45 can be locked by the lock 47. That is, the outer cover plate 45 can be kept in the state of closing the through hole 4211.

[0196] In the embodiment, the lock 47 comprises a lock base 471 and a lock piece 472. The lock base 471 is fixed on the operation box 42, and the inner end of the lock piece 472 is hinged on the lock base 471. In the initial state, the lock piece 472 is away from the outer cover plate 45. When the outer end of the lock piece 472 swings to the outer cover plate 45, the lock 47 can be locked with the lower part of the outer cover plate 45.

[0197] The upper part of the outer cover plate 45 has two hinged parts 451, which are respectively arranged at the operation box 42 corresponding to the upper part of the through hole 4211.

[0198] Because the length of the outer cover plate 45 is relatively large, the whole outer cover plate 45 can be stably hinged on the operation box 42 through the hinged parts 451 at both ends of the outer cover plate 45.

[0199] The number of the lock 47 is two, and the two locks 47 are respectively arranged at the operation box 42 corresponding to the lower part of the through hole 4211.

[0200] Similarly, because the length of the outer cover plate 45 is relatively large, the outer cover plate 45 can be stably locked through the two locks 47.

[0201] The inner cover plate 44 and the inner end of the operation box 42 are hinged through a damping hinge.

[0202] Under the action of the damping hinge, the inner cover plate 44 can be positioned at any opening position. Of course, after a large enough force is applied, the inner cover plate 44 can be swung.

[0203] In the embodiment, the inner side of the inner cover plate 44 has a protruding handle 441. The inner cover plate 44 can be conveniently pulled through the handle 441, and the through hole 4221 can be stably closed by the inner cover plate 44.

[0204] The hinged part of the inner cover plate 44 and the inner end of the operation box 42 is located at the side part of the inner cover plate 44.

[0205] The hinged part of the inner cover plate 44 and the inner end of the operation box 42 is close to the side part of the operation box 42.

[0206] Such structure can make the hinged parts of the two inner cover plates 44 as far away as possible to avoid mutual influence.

[0207] The operation box 42 includes a shell one 421 and a shell two 422, the shell one 421 is fixedly connected to the outside of the powder bucket 3, the through hole one 4211 and the outer cover plate 45 are located on the shell one 421, the number of the shell two 422 is two, and the shell two 422 is fixedly connected to the inside of the powder bucket 3, the shell one 421 is communicated with the shell two 422, the outer end of the shell two 422 forms the through hole two 4221, and the inner cover plate 44 is hinged to the outer end of the shell two 422.

[0208] The structure can make the glove 43 stably located in the cavity between the shell one 421 and the shell two 422 in the storage state.

[0209] The manual operation assembly of the powder cleaning device is located in the operation box, the inner cover plate and the outer cover plate are closed in the normal powder cleaning operation, so that the glove is not affected in the powder cleaning operation process.

[0210] When manual auxiliary powder cleaning is needed, the inner cover plate and the outer cover plate are opened, the hand of the operator is inserted into the glove, and the corresponding powder cleaning operation can be conveniently performed on the workpiece in the powder bucket under the isolation of the glove.

[0211] After the manual operation is completed, the glove is retracted into the operation box and the inner cover plate and the outer cover plate are closed. After the above operation is completed, since the glove is located in the sealed operation box, the glove is not affected in the powder cleaning operation process of the high-pressure air nozzle and other mechanisms. The stability is relatively high, and the practical value is high.

[0212] The 3D printing powder cleaning device includes a connecting seat and a powder bucket 3 in a cylindrical shape, the powder bucket 3 is hollow inside and has an open lower end, the connecting seat 2 has a working panel 37 matched with the lower end of the powder bucket 3, and the powder bucket 3 is provided with a flange plate 31 at the lower end.

[0213] The locking mechanism of the powder bucket and the connecting seat in the 3D printing powder cleaning device is located between the flange plate 31 and the working panel 37, includes a lock pin 32 made of flexible material and a lock cylinder 33 made of metal material, the number of the lock pin 32 is several, and the several lock pins 32 are uniformly distributed in the circumferential direction of the flange plate 31, the lock cylinder 33 is fixedly connected to the working panel 37, and the lock cylinder 33 corresponds to the lock pin 32 one by one.

[0214] When the powder bucket 3 is connected to the working panel 37, each lock pin 32 is connected to the corresponding lock cylinder 33;

[0215] The lower end of the lock cylinder 33 is used to be connected with the air pump, when the air pump continuously inputs gas to the lock cylinder 33, the lock pin 32 and the lock cylinder 33 are in an unlocked state, and under the action of an external force, the powder bucket 3 can be separated from the working panel 37;

[0216] When the air pump is disconnected, the connected lock pin 32 and the lock cylinder 33 are in a locked state.

[0217] When the lower end of the powder bucket 3 is fastened to the working panel 37, the flange plate 31 of the powder bucket 33 is in a sealed contact with the working panel 37.

[0218] In the embodiment, the working panel 37 is provided with an annular recessed sealing ring groove 36, and a sealing ring 38 is arranged in the sealing ring groove 36. When the powder bucket 3 is fastened to the working panel 37, the sealing ring 38 is tightly pressed between the flange plate 31 and the working panel 37.

[0219] With the sealing ring 38, when the powder bucket 3 is fastened to the working panel 37, a good sealing effect can be formed at the connection between the two, so that the dust can be effectively prevented from overflowing from the above-mentioned connection during the 3D powder cleaning operation.

[0220] The sealing ring 38 is an inflatable sealing ring. The inflatable sealing ring is a prior art and a commercially available part, so its specific structure will not be described in the embodiment.

[0221] In the embodiment, the inflatable sealing ring is an inflatable expansion sealing ring provided by Shanghai Qingtu Rubber Technology Co., Ltd.

[0222] As can be seen, when the flange plate 31 is fastened to the working panel 37, the inflatable sealing ring is inflated and expanded, so that the above-mentioned connection is in a sealed state.

[0223] The flange plate 31 has a through positioning hole one 34, and the above-mentioned locking pin 32 is fixedly connected at the positioning hole one 34.

[0224] The positioning hole one 34 provides sufficient position for the connection of the locking pin 32.

[0225] The working panel 37 has a through positioning hole two 35, and the above-mentioned locking cylinder 33 is fixedly connected at the positioning hole two 35.

[0226] The positioning hole two 35 provides sufficient position for the connection of the locking cylinder 33.

[0227] The locking cylinder 33 has threads on the outer side, and the locking cylinder 33 is threadedly connected with the positioning hole two 35.

[0228] The threads can stably connect the locking cylinder 33 at the positioning hole two 35 of the working panel 37.

[0229] The upper end of the locking pin 32 is a positioning section 321 which is tightly connected at the positioning hole one 34, and the middle part to the lower end of the locking pin 32 is sequentially provided with a sealing section one 322, a sealing section two 323 and a sealing section three 324. The sealing section one 322 is in a conical frustum shape, the sealing section two 323 is in a cylindrical shape, and the sealing section three 324 is in a spherical shape.

[0230] The locking pin 32 is stably connected to the flange plate 31 through the positioning section 321.

[0231] The sealing section one 322, the sealing section two 323 and the sealing section three 324 form a non-flat special-shaped structure. Since the upper port of the locking cylinder 33 matches the lower part of the locking pin 32, the lower part of the locking pin 32 can effectively form a seal after being inserted into the upper end of the locking cylinder 33.

[0232] The outer diameter size of the sealing section two 323 is the same as the outer diameter size of the small size end of the sealing section one 322, and the outer diameter size of the sealing section three 324 is greater than the outer diameter size of the sealing section two 323.

[0233] The upper port of the locking cylinder 33 matches the lower part of the locking pin 32.

[0234] Since the locking pin 32 is made of flexible material, the locking pin 32 can be stably embedded in the inner cavity of the locking cylinder 33 that matches it.

[0235] The locking pin 32 is made of metal material.

[0236] The locking mechanism of the powder bucket and the connecting seat in the 3D powder cleaning device is one-to-one corresponding to the several locking cylinders uniformly distributed on the work panel and the several locking pins uniformly distributed on the flange plate of the powder bucket. Therefore, after the powder bucket is buckled and connected to the work panel, the locking pin is embedded in the corresponding locking cylinder.

[0237] When the air pump continuously inputs gas into the locking cylinder, the locking pin and the locking cylinder are in an unlocked state, and under the action of external force, the powder bucket can be stably separated from the work panel.

[0238] When the air pump is disconnected, the connected locking pin and locking cylinder are in a locked state.

[0239] As can be seen, since all the locking cylinders are connected to the same air pump, the circumferentially uniformly distributed several locking cylinders and the corresponding locking pins can finally stably and quickly load and unload the powder bucket and the work panel. The locking mechanism can effectively improve the operation efficiency of 3D powder cleaning and has high practical value.

[0240] The technical solutions of the above application provide a significantly different solution from the prior art, and the parts not involved in the technical solutions of the application are the same as or can be realized by the prior art, and will not be described again.

[0241] The technical solutions in the above embodiments have clearly and completely described the content of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the application.

Claims

1. A 3D printing powder cleaning device comprising a connecting seat and a powder bucket detachably connected thereto, characterized in that, It also includes a base, a support, a lifting mechanism, a swing mechanism and a wire harness pipe assembly; The number of the above-mentioned bases is two, and the two bases are arranged adjacent to each other on the left and right. The supports are connected to the upper parts of the bases one by one. The connecting seats are located between the two supports and are connected to the corresponding supports. The lifting mechanism is located between the support and the connecting seat, and under the action of the lifting mechanism, the connecting seat can move up and down relative to the support. The swing mechanism is located between the lifting mechanism and the connecting seat, and under the action of the swing mechanism, the connecting seat can swing. The wire harness pipe assembly is located between the lifting mechanism and the swing mechanism. The cables connected to the lifting mechanism and the swing mechanism are all located in the wire harness pipe assembly. Under the action of the wire harness pipe assembly, not only can the corresponding cables be tightly and neatly arranged, but also can avoid large swinging of the corresponding cables during the action of the swing mechanism.

2. The 3D printing powder clearing device according to claim 1, characterized in that, It also includes a reinforcing plate and a reinforcing rod. The reinforcing plate is located between the two bases and is fixed to the corresponding bases at the ends. The reinforcing rod is located between the upper parts of the two supports, and the ends of the reinforcing rod are fixed to the corresponding supports.

3. The 3D printing powder clearing device according to claim 1, characterized in that, The lifting mechanism includes a driving member, a sliding plate, a guide rail and a sliding block. The guide rail is fixed to the side of the support. The sliding block is fixed to the inner side of the sliding plate and is connected to the guide rail. The connecting seat is connected to the outer side of the sliding plate. The driving member is fixed in the support and is connected to the sliding plate. Under the action of the guide rail and the sliding block, the sliding plate can move up and down smoothly under the action of the driving member.

4. The 3D printing powder clearing device according to claim 3, characterized in that, The number of the guide rails is two, and the two guide rails are symmetrically fixed to the two sides of the support. Each guide rail is connected to the corresponding sliding block.

5. The 3D printing powder clearing device according to claim 1, characterized in that, The swing mechanism includes a connecting seat, a fixed ring, a movable ring and a driving member. The fixed ring is fixed to the support. The movable ring is located in the fixed ring and is connected to the connecting seat. The driving member is connected to the support and can drive the movable ring to rotate relative to the fixed ring by a set angle.

6. The 3D printing powder clearing device according to claim 5, characterized in that, The number of the supports is two. Each support has a corresponding fixed ring, a movable ring and a driving member. The two ends of the connecting seat are fixed to the movable rings of the corresponding supports.

7. The 3D printing powder clearing device according to claim 1, characterized in that, The wire harness pipe assembly is arranged between the sliding plate and the connecting seat and includes a positioning rod, an elastic connecting member and a corrugated pipe. The positioning rod is arranged in parallel with the support. The corrugated pipe includes a connecting end one connected to the connecting seat and a connecting end two connected to the sliding plate. The middle part of the corrugated pipe is an arch-shaped deformation section. The deformation section is connected to the positioning rod through the elastic connecting member. When the connecting seat is in the initial state, the elastic connecting member is in the contracted state. The elastic connecting member in the contracted state lifts the deformation section to the highest position. When the connecting seat swings, the elastic connecting member is in the stretched state. The elastic connecting member in the stretched state can make the deformation section swing with the connecting seat.

8. The 3D printing powder clearing device according to claim 1, characterized in that, It also includes a manual operation assembly. The manual operation assembly is arranged on the side of the powder bucket. The manual operation assembly includes an operation port, an operation box, a glove, an inner cover plate and an outer cover plate. The operation port penetrates the side of the powder bucket. The operation box has a hollow inside and is fixed to the operation port. The outer end of the operation box is located outside the powder bucket and has a through hole one penetrating the outer end. The inner end of the operation box is located inside the powder barrel and has a through hole at its inner end; The glove is located inside the operation box and the wrist opening of the glove is fixed at the through hole; The outer cover plate is connected at the outer end of the operation box and can open and close the through hole, and the inner cover plate is connected at the inner end of the operation box and can open and close the through hole.

9. The 3D printing powder clearing device according to claim 1, characterized in that, Further comprising a locking mechanism, the 3D printing powder cleaning device comprises a connecting seat and a powder barrel in the shape of a cylinder, the inside of the powder barrel is a cavity and the lower end is open, the connecting seat has a working panel matched with the lower end of the powder barrel, the lower end of the powder barrel has a flange, the locking mechanism is located between the flange and the working panel, and comprises a lock pin made of flexible material and a lock cylinder made of metal material, the number of lock pins is several and the several lock pins are evenly distributed on the flange, the lock cylinder is fixed on the working panel and corresponds to the lock pin; When the powder barrel is connected at the working panel, each lock pin is connected in the corresponding lock cylinder; The lower end of the lock cylinder is used to connect with the air pump, when the air pump continuously inputs gas to the lock cylinder, the lock state between the lock pin and the lock cylinder is released, and under the action of external force, the powder barrel can be separated from the working panel; When the air pump is disconnected, the connected lock pin and lock cylinder are in a locked state.

10. The 3D printing powder clearing device according to claim 9, characterized in that, The working panel has an annular recessed sealing ring groove, the sealing ring groove has a sealing ring, when the powder barrel is connected at the working panel, the sealing ring can be tightly pressed between the flange and the working panel.

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