A powder 3D printer recycling part with grinding function

Abstract

The present invention relates to the technical field of powder recovery and grinding, and in particular to a powder 3D printer recovery component with a grinding function, comprising: a main chamber, an edge strip installed at the bottom end of the main chamber, a plurality of pillars arrayed on the bottom surfaces of the main chamber and the edge strip, a plurality of universal wheels respectively installed at the bottoms of the pillars, and a collecting mechanism, a loosening and drying mechanism, a screening mechanism and a grinding mechanism sequentially arranged on the main chamber from top to bottom. The powder 3D printer recovery component with a grinding function integrates multiple functions in an orderly manner, greatly improving the concentration of the powder recovery process, thereby effectively shortening the length of the processing chain while ensuring the processing efficiency, so as to prevent the powder from being contaminated during the turnover process.

Description

Technical Field

[0001] The invention relates to the technical field of powder recovery and grinding, and in particular to a powder three-dimensional printer recovery component with a grinding function. Background Art

[0002] With the development of industrial society, additive manufacturing, especially powder bed fusion technology (mainly including two types: selective laser sintering and selective laser melting), has become increasingly important because of its ability to produce parts with complex geometries.

[0003] 3D printers that use powder as raw materials provide strong support for modern manufacturing with their unique working principles and wide range of applications. Powder 3D printing technology builds three-dimensional objects by laying powder materials layer by layer and selectively melting or bonding these powders. During printing, the laser scanning path only covers specific areas to ensure that the molded part has the required mechanical properties, while other areas are retained in an unsintered state while providing support for the molded part. Therefore, this technology will produce unmelted powder during the printing process, which usually needs to be recycled and reused to reduce material waste and reduce production costs.

[0004] After the powder is recovered, it still needs to go through a series of processing processes such as screening and dehumidification before it can be reused. However, the recycling device in the traditional 3D printer has a low degree of process concentration, and some processes are dispersed and operated manually. This mode not only has low processing efficiency, but also easily causes the powder to be contaminated during the turnover process. Moreover, the recycling device in the traditional 3D printer is often unable to deal with the problem of agglomeration of fine particles in the powder caused by recycling, resulting in agglomeration in the powder after recycling, which affects the final printing quality. In addition, the recycling device in the traditional 3D printer can automatically recycle most of the powder when recycling the powder, but it will still miss the powder with finer particles. Summary of the invention

[0005] The purpose of the present invention is to provide a powder 3D printer recycling component with a grinding function to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides a powder 3D printer recycling component with grinding function, comprising: a main chamber, an edge strip installed at the bottom end of the main chamber, a plurality of pillars arrayed on the bottom surfaces of the main chamber and the edge strip, a plurality of universal wheels respectively installed at the bottoms of the plurality of pillars, and a collecting mechanism, a loosening and hot drying mechanism, a screening mechanism and a grinding mechanism sequentially arranged on the main chamber from top to bottom;

[0007] The loosening and heat drying mechanism is connected to the collecting mechanism;

[0008] The main chamber is located in front of the printer;

[0009] The collecting mechanism is attached to the printing platform on the printer, wherein:

[0010] After driving the collecting mechanism, the powder on the printing platform is transported outwards, so as to guide the powder to the loosening and hot drying mechanism;

[0011] The loosening and drying mechanism is suitable for reciprocatingly stabbing the powder and discharging a dry hot air flow inside the powder to loosen the powder and dehumidify the powder;

[0012] The grinding mechanism is suitable for grinding powder and can gradually increase the grinding height to achieve quantitative grinding of powder.

[0013] The camming mechanism further comprises two retaining arms mirror-mounted on both side surfaces of the main chamber, two side upright plates respectively mounted on the two retaining arms, and the bottom surfaces of the two side upright plates are flush with the surface of the printing platform, a top strip plate slidably mounted between the two side upright plates, two clamping plates spaced apart and mounted on the bottom of the top strip plate, a shovel plate fitted between the two clamping plates, a plurality of springs with one end equidistantly mounted on the top of the shovel plate and the other end mounted on the bottom of the top strip plate, a bending plate mounted between the two side upright plates and located in front of the printing platform, and the bending plate obliquely extends downward into the main chamber, a triangular strip plate connected to the head end of the bending plate, two side baffles mounted on both sides of the bending plate and respectively connected to the two side upright plates, a pad mounted on the top of the main chamber, a first electric cylinder mounted on the pad, and a force-bearing plate mounted on the top strip plate, and the output shaft of the first electric cylinder is connected to the force-bearing plate;

[0014] The printing platform is located between the two side panels;

[0015] The bottom surfaces of the shovel plate, the bent plate, and the triangular strip plate are all flush with the bottom surfaces of the two side vertical plates;

[0016] The two side vertical plates protrude from the horizontal portion of the bent plate.

[0017] Furthermore, the collecting mechanism also includes a processing room installed on the back of the top slat, and the processing room is close to the back of the clamping plate and the shovel plate located at the rear, an external blowing port installed on the processing room and connected to the interior of the processing room, a first delivery pipe connected to the external blowing port at one end, a transfer box located in front of the external blowing port, a plurality of branch suction pipe heads connected to the transfer box at one end at equal intervals and connected to the interior of the processing room at the other end, a negative pressure fan arranged on the top of the main box chamber, a second delivery pipe connected to the inlet of the negative pressure fan at one end and connected to the transfer box at the other end, and a third delivery pipe connected to the outlet of the negative pressure fan at one end and bent and extended to the top of the bending plate at the other end;

[0018] The other end of the first delivery pipe is connected to an external blower;

[0019] The bottom surface of the processing room is flush with the bottom surface of the shovel plate.

[0020] Furthermore, the loosening and hot drying mechanism includes a first cylinder installed at the end of the bending plate, a first closing plug arranged at the bottom of the first cylinder, a first round table plate installed on the peripheral side of the first closing plug, a horizontal plate installed on the bottom end of the first round table plate, and both ends of the horizontal plate are movably installed on the inner wall of the main chamber, a screw lifter centrally installed on the horizontal plate and located in the first round table plate, a first cone installed on the first closing plug and located in the first cylinder, a plurality of thin tubes slidably inserted in an array on the first cone and the first closing plug, a plurality of spike cones respectively installed on the top ends of the plurality of thin tubes, an intermediate round plate installed on the output end of the screw lifter, and a second electric cylinder installed on the inner wall of the main chamber;

[0021] The bottom ends of the plurality of thin tubes are connected to the middle circular plate;

[0022] The output shaft of the second electric cylinder is connected to the cross plate;

[0023] A portion of the top surface of the first cylinder is in contact with the two side baffles.

[0024] Furthermore, a plurality of the thin tubes are provided with openings at positions close to a plurality of the spike cones;

[0025] A fourth delivery pipe is installed on the middle circular plate;

[0026] The middle circular plate is hollow, and one end of the fourth delivery pipe is connected to the hollow part of the middle circular plate, and the other end of the fourth delivery pipe is connected to an external hot air blower;

[0027] A plurality of the thin tubes are connected to the middle circular plate.

[0028] Further, the screening mechanism includes a vibrating screen arranged in the main chamber and located directly below the first truncated plate, a collecting member installed in the main chamber and close to the vibrating screen, a second cylinder connected to the bottom of the collecting member, a second closing plug arranged at the bottom of the second cylinder, a second cone installed on the second closing plug and located in the second cylinder, a second truncated plate installed on the circumference of the second closing plug, a top mounting plate installed on the collecting member, a third electric cylinder invertedly installed on the top mounting plate, and a connected vertical rod installed on the second truncated plate;

[0029] The output shaft of the third electric cylinder is connected to the connected vertical rod.

[0030] Furthermore, the grinding mechanism includes a circular plate member arranged on the main chamber, an annular machining groove opened on the circular plate member and corresponding to the second circular table plate, a cylinder rotatably installed at the center of the circular plate member, a positioning frame installed at the bottom of the circular plate member, a motor installed on the positioning frame, and the output shaft of the motor is connected to the cylinder, fittingly fitted with a ring sleeved on the cylinder, a connecting plate connected to the ring, a connecting block installed on the bottom surface of the connecting plate, and a grinding plate installed on the connecting block and fittingly located in the annular machining groove.

[0031] Furthermore, the grinding mechanism further comprises a second top mounting plate mounted on the top end of the cylinder, and a fourth electric cylinder mounted inverted on the second top mounting plate;

[0032] The output shaft of the fourth electric cylinder is connected to the ring.

[0033] Further, two triangular blocks are installed on the horizontal plate;

[0034] The two triangular blocks are tightly attached to the first frustum plate, one on the left and one on the right.

[0035] Furthermore, two round handles are installed at the bottom of the circular plate;

[0036] The circular plate member is screwed onto the main chamber.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The powder 3D printer recycling component with grinding function can be flexibly moved and can be used in conjunction with the printer to ensure a series of processing procedures for automatically recycling powder after the current printing work of the printer is completed;

[0039] The powder 3D printer recycling component with grinding function can simultaneously transport the remaining powder on the printing platform outward by means of scraping and blowing through the collecting mechanism, and finally make all the powder enter the loosening and hot drying mechanism for temporary storage, so as to carry out targeted powder recycling by two means, so as to prevent relatively fine powder from being missed during recycling, thereby ensuring the thoroughness of powder recycling from the printing platform;

[0040] The powder 3D printer recycling component with grinding function can collect the powder recovered by the collecting mechanism through the loosening and hot drying mechanism, and can quickly and reciprocally pump, insert and pierce the collected powder, so as to disperse the parts where particles in the recovered powder are agglomerated, destroy the agglomeration of the powder, and effectively prevent the phenomenon that the powder after the recycling process still has agglomeration, so as to ensure that the quality of the recycled powder can support high-quality printing; in addition, the loosening and hot drying mechanism can destroy the agglomerated parts of the powder and discharge dry and hot airflow inside the collected powder, so as to continuously dehumidify the powder, promote the powder to gradually dry, and effectively prevent the moisture absorption and oxidation of the powder in the process of recycling the powder;

[0041] The powder 3D printer recycling component with grinding function can quantitatively convey the powder for grinding each time under the joint action of the screening mechanism and the grinding mechanism, so as to grind the recovered powder in batches in a single equal thickness grinding manner, thereby effectively improving the grinding effect and ensuring the quality of the recycled powder;

[0042] The powder 3D printer recycling component with grinding function integrates multiple functions in an orderly manner, greatly improving the centralization of the powder recycling process, thereby effectively shortening the processing chain length while ensuring the processing efficiency to prevent the powder from being contaminated during the turnover process. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0044] Figure 1 A perspective view of the present invention is shown;

[0045] Figure 2 A first partial perspective view of the present invention is shown;

[0046] Figure 3 A second partial perspective view of the present invention is shown;

[0047] Figure 4 A partial right side view of the present invention is shown;

[0048] Figure 5 A third partial perspective view of the present invention is shown;

[0049] Figure 6 A fourth partial perspective view of the present invention is shown;

[0050] Figure 7 A partial bottom perspective view of the present invention is shown;

[0051] Figure 8 A fifth partial perspective view of the present invention is shown;

[0052] Fig. 9 A partial front view of the present invention is shown;

[0053] Fig.10 The present invention is shown Figure 2 A magnified image of point A;

[0054] Fig.11 The present invention is shown Figure 3 The enlarged view of point B;

[0055] Fig.12 The present invention is shown Figure 4 Enlarged view of point C;

[0056] Fig.13 The present invention is shown Figure 6 The enlarged view of point D;

[0057] Fig.14 The present invention is shown Figure 6 The enlarged view of point E;

[0058] Fig.15 The present invention is shown Fig. 9 The enlarged view of F;

[0059] Fig.16 The present invention is shown Fig. 9 Enlarged view of point G.

[0060] In the figures, the same reference numerals denote the same structural elements, wherein:

[0061] 1. Main box chamber; 2. Edge strip; 3. Pillar; 4. Universal wheel; 5. Collection mechanism; 51. Retention arm; 52. Side plate; 53. Top strip; 54. Clamp; 55. Shovel plate; 56. Spring; 57. Bending plate; 58. Triangular strip; 59. Side baffle; 591. Pad; 592. First electric cylinder; 593. Force plate; 594. Processing room; 595. External blowing port; 596. First delivery pipe; 597. Transfer box; 598. Sub-suction pipe head; 599. Negative pressure fan; 5991. Second delivery pipe; 5992. Third delivery pipe; 6. Loosening and hot drying mechanism; 61. First cylinder; 62. First closing plug; 63. First round table plate; 64. Horizontal plate; 641. Triangular block; 65. Screw lifting machine; 66, first cone; 67, capillary; 671, opening; 68, spike cone; 69, middle circular plate; 692, fourth delivery pipe; 691, second electric cylinder; 7, screening mechanism; 71, vibrating screen; 72, collecting piece; 73, second cylinder; 74, second closing plug; 75, second cone; 76, second round table plate; 77, top plate; 78, third electric cylinder; 79, connected vertical rod; 8, grinding mechanism; 81, circular plate; 811, round handle; 82, annular processing groove; 83, cylinder; 84, positioning frame; 85, motor; 86, ring; 87, connecting plate; 88, connecting block; 89, grinding plate; 891, second top plate; 892, fourth electric cylinder; 9, printer; 10, printing platform. DETAILED DESCRIPTION

[0062] 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.

[0063] See also Figure 1 , Figure 1 A perspective view of the present invention is shown; see Figure 2 , Figure 2 Figure 2 A first partial perspective view of the present invention is shown; see Figure 3 , Figure 3 A second partial perspective view of the present invention is shown; see Figure 4 , Figure 4 A partial right side view of the present invention is shown; see Figure 5 , Figure 5 A third partial perspective view of the present invention is shown; see Figure 6 , Figure 6 A fourth partial perspective view of the present invention is shown; see Figure 7 , Figure 7 A partial bottom perspective view of the present invention is shown; see Figure 8 , Figure 8 A fifth partial perspective view of the present invention is shown; see Fig. 9 , Fig. 9 Shows a partial front view of the present invention; see Fig.10 , Fig.10 The present invention is shown Figure 2 See the enlarged view of point A in Fig.11 , Fig.11 The present invention is shown Figure 3 See the enlarged view of point B in Fig.12 , Fig.12 The present invention is shown Figure 4 See the enlarged view of point C in Fig.13 , Fig.13 The present invention is shown Figure 6 See the enlarged view of D in Fig.14 , Fig.14 The present invention is shown Figure 6 See the enlarged view of E in Fig.15 , Fig.15 The present invention is shown Fig. 9 See the enlarged view of F in Fig.16 , Fig.16 The present invention is shown Fig. 9 The enlarged picture of G is as follows: Figure 1-16 As shown, a powder 3D printer recycling component with grinding function comprises: a main chamber 1, an edge strip 2 installed at the bottom end of the main chamber 1, a plurality of pillars 3 arrayed on the bottom surfaces of the main chamber 1 and the edge strip 2, a plurality of universal wheels 4 respectively installed at the bottom of the plurality of pillars 3, and a collecting mechanism 5, a loosening and drying mechanism 6, a screening mechanism 7 and a grinding mechanism 8 sequentially arranged on the main chamber 1 from top to bottom; the plurality of universal wheels 4 installed ensure the mobility of the powder 3D printer recycling component with grinding function, and the recycling component can be easily moved when the current printing structure is in the state of being printed. After the powder is collected, it moves to the front of the printer 9 so that the collecting mechanism 5 reaches the designated working position, ensuring that it can be used in conjunction with the printer 9; after the collecting mechanism 5 recovers all the remaining powder on the printing platform 10 to the loosening and drying mechanism 6, the powder 3D printer recovery component with grinding function can continue to stay at the current position for subsequent powder processing procedures, or it can be moved elsewhere to avoid affecting the next printing work; a universal wheel 4 with a self-locking function is used to ensure the overall stability when recycling and processing powder to prevent shaking or movement from causing an impact;

[0064] The loosening and heat drying mechanism 6 is connected to the collecting mechanism 5;

[0065] The main chamber 1 is located in front of the printer 9;

[0066] The collecting mechanism 5 is attached to the printing platform 10 on the printer 9, wherein:

[0067] After driving the collecting mechanism 5, the powder on the printing platform 10 is transported outwards, so as to guide the powder to the loosening and drying mechanism 6;

[0068] The loosening and drying mechanism 6 is suitable for reciprocatingly stabbing the powder and discharging dry hot air flow inside the powder to loosen the powder and dehumidify it;

[0069] The grinding mechanism 8 is suitable for grinding powder and can gradually increase the grinding height to achieve quantitative grinding of powder. The powder three-dimensional printer recovery component with grinding function can be flexibly moved and can be used in conjunction with the printer 9 to ensure that a series of processing procedures for automatically recovering powder can be performed after the current printing work of the printer 9 is completed. The collecting mechanism 5 can simultaneously transport the remaining powder on the printing platform 10 outward by scraping, pushing and blowing and suctioning, and finally cause all the powder to enter the loosening and hot drying mechanism 6 for temporary storage, so as to carry out targeted powder recovery by two means to prevent relatively fine powder from being missed during recovery, thereby ensuring the thoroughness of powder recovery from the printing platform 10. The loosening and hot drying mechanism 6 can collect the powder recovered by the collecting mechanism 5, and at the same time, the collected powder can be quickly pumped and thrusted back and forth, so as to disperse the parts where particles in the recovered powder are agglomerated, destroy the agglomeration of the powder, and effectively Prevent the phenomenon of agglomeration in the powder after recycling, and ensure that the quality of the recycled powder can support high-quality printing; in addition, the loosening and hot drying mechanism 6 can destroy the powder agglomeration sites while discharging dry and hot airflow inside the collected powder, thereby continuously dehumidifying the powder, causing the powder to gradually dry, and effectively preventing moisture absorption and oxidation during the powder recycling process. Under the joint action of the screening mechanism 7 and the grinding mechanism 8, the powder can be quantitatively transported for grinding each time, so that the recovered powder can be ground in batches in a single equal-thickness grinding manner, thereby effectively improving the grinding effect and ensuring the quality of the recycled powder. The powder 3D printer recycling component with grinding function integrates multiple functions in an orderly manner, greatly improving the concentration of the powder recycling process, thereby effectively shortening the processing chain length while ensuring the processing efficiency, to prevent the powder from being contaminated during the turnover process.

[0070] Optionally, the collecting mechanism 5 includes two retaining arms 51 mirror-mounted on both side surfaces of the main chamber 1, two side upright plates 52 respectively mounted on the two retaining arms 51, and the bottom surfaces of the two side upright plates 52 are flush with the surface of the printing platform 10, a top strip 53 slidably mounted between the two side upright plates 52, two clamping plates 54 installed at intervals at the bottom of the top strip 53, a shovel plate 55 fitted between the two clamping plates 54, and a plurality of springs 56 with one end equidistantly mounted on the top of the shovel plate 55 and the other end mounted to the bottom of the top strip 53, A bending plate 57 installed between the two side upright plates 52 and located in front of the printing platform 10, and the bending plate 57 extends obliquely downward into the main chamber 1, a triangular strip plate 58 connected to the head end of the bending plate 57, two side baffles 59 installed on both sides of the bending plate 57 and respectively connected to the two side upright plates 52, a pad 591 installed on the top of the main chamber 1, a first electric cylinder 592 installed on the pad 591, and a force plate 593 installed on the top strip plate 53, and the output shaft of the first electric cylinder 592 is connected to the force plate 593;

[0071] The printing platform 10 is located between the two side panels 52;

[0072] The bottom surfaces of the shovel plate 55, the bent plate 57, and the triangular strip plate 58 are all flush with the bottom surfaces of the two side vertical plates 52, that is, to ensure that the shovel plate 55 can be closely attached to the surface of the printing platform 10 to scrape and push the remaining powder outwards when in use; after driving the first electric cylinder 592, its output shaft begins to retract, thereby pulling the top strip plate 53 and the shovel plate 55 forwards through the sliding installation with the two side vertical plates 52, and the shovel plate 55 scrapes and pushes the remaining powder on the printing platform 10 outwards during the forward movement, until the powder is pushed onto the bent plate 57, so that the powder slides down along the bent plate 57 into the first cylinder 61, prompting the powder to be gathered in the first cylinder 61, thereby completing the recovery of the powder; when the shovel plate 55 contacts the triangular strip plate 58 and continues to move forward, the shovel plate 55 is squeezed by the triangular strip plate 58 to compress the plurality of springs 56 and then moves upwards along the two clamping plates 54, thereby ensuring that the powder is smoothly scraped and pushed onto the bent plate 57;

[0073] The two side plates 52 protrude from the horizontal part of the bending plate 57, which ensures that the shovel plate 55 can be moved above the inclined part of the bending plate 57 under the pull of the first electric cylinder 592, thereby ensuring that the powder can be pushed onto the inclined part of the bending plate 57 so that it can naturally slide down into the first cylinder 61 for the next process.

[0074] Optionally, the collecting mechanism 5 further includes a processing room 594 installed on the back of the top strip 53, and the processing room 594 is close to the back of the clamping plate 54 and the shovel plate 55 located at the rear, an external blowing port 595 installed on the processing room 594 and connected to the interior of the processing room 594, a first delivery pipe 596 connected to the external blowing port 595 at one end, a transfer box 597 located in front of the external blowing port 595, and a plurality of transfer boxes 597 connected to the transfer box 597 at one end and connected to the interior of the processing room 594 at the other end. A suction pipe head 598, a negative pressure fan 599 arranged on the top of the main chamber 1, one end of which is connected to the inlet of the negative pressure fan 599 and the other end of which is connected to the second delivery pipe 5991 of the transfer box 597, the negative pressure fan 599 can be a high-pressure suction and supply fan, a centrifugal fan and an explosion-proof supply and exhaust fan, etc., to ensure that the suction and transportation of the powder on the printing platform 10 can be completed while taking into account safety, and a third delivery pipe 5992 with one end connected to the outlet of the negative pressure fan 599 and the other end bent and extended to the top of the bending plate 57;

[0075] The other end of the first delivery pipe 596 is connected to an external blower. While the shovel plate 55 is recovering the powder, the negative pressure fan 599 and the external blower are started, so that the wind generated by the external blower reaches the external blowing port 595 through the first delivery pipe 596 and is blown out. At the same time, under the action of the negative pressure fan 599, the nozzles of the plurality of suction pipe heads 598 are in a negative pressure state through the second delivery pipe 5991 and the transfer box 597 in sequence. The processing room 594 moves forward synchronously with the top strip 53, so that the wind passes through the external blowing port 595 immediately after the shovel plate 55. 595 blows the powder that is still missed on the printing platform 10 after being processed by the shovel plate 55 to make it float in the processing room 594, and then uses a plurality of branch suction pipe heads 598 to continuously suck the powder floating in the processing room 594 to suck it away, and finally discharges the powder downward to the bending plate 57 through the third delivery pipe 5992, and then performs targeted recovery processing on the powder on the printing platform 10 again on the basis of the shovel plate 55, effectively preventing the situation of missing powder and ensuring the thoroughness of recovering powder from the printing platform 10;

[0076] The bottom surface of the processing room 594 is flush with the bottom surface of the shovel plate 55, ensuring that an enclosed space is formed between the processing room 594 and the printing platform 10, the shovel plate 55, the top strip 53 and the clamping plate 54 during the powder recovery process to prevent powder from escaping and polluting the external environment or causing inhalation by workers to harm their health.

[0077] Optionally, the loosening and hot drying mechanism 6 includes a first cylinder 61 installed at the end of the bending plate 57, a first closing plug 62 arranged at the bottom of the first cylinder 61, a first frustum plate 63 installed on the peripheral side of the first closing plug 62, a transverse plate 64 installed on the bottom end of the first frustum plate 63, and both ends of the transverse plate 64 are movably installed on the inner wall of the main chamber 1, a screw lift 65 centrally installed on the transverse plate 64 and located in the first frustum plate 63, a first cone 66 installed on the first closing plug 62 and located in the first cylinder 61, a plurality of thin tubes 67 slidably inserted in an array on the first cone 66 and the first closing plug 62, a plurality of spike cones 68 respectively installed on the top ends of the plurality of thin tubes 67, an intermediate circular plate 69 installed on the output end of the screw lift 65, and a second electric cylinder 691 installed on the inner wall of the main chamber 1;

[0078] The bottom ends of the plurality of thin tubes 67 are connected to the middle circular plate 69;

[0079] The output shaft of the second electric cylinder 691 is connected to the transverse plate 64;

[0080] A portion of the top surface of the first cylinder 61 is in contact with the two side baffles 59. Under normal circumstances, the first closing plug 62 is inserted in the first cylinder 61 to seal its bottom end, ensuring that the powder sliding down through the bending plate 57 can be stored in the first cylinder 61. After the powder on the printing platform 10 is completely recovered into the first cylinder 61, the screw lift 65 is driven to start pushing and pulling the plurality of thin tubes 67 back and forth quickly, so that the plurality of thin tubes 67 are inserted back and forth in the powder, and the powder is pierced by the plurality of spike cones 68 on the plurality of thin tubes 67 to disperse the parts where particles in the powder are agglomerated, thereby dispersing the powder and destroying the agglomeration phenomenon in the powder, thereby effectively preventing the phenomenon of agglomeration in the powder after recycling, ensuring that the powder can meet the needs of recycling and ensuring that the quality of the recycled powder can support high-quality printing; at the same time, the plurality of spike cones 68 that reciprocate can grind the powder to a certain extent during the friction with the powder.

[0081] Optionally, openings 671 are provided on the plurality of thin tubes 67 near the plurality of spike cones 68, and protective nets or protective layers are installed at all the openings 671 to prevent external powder from entering the thin tubes 67 and the middle circular plate 69 through the openings 671 without affecting the outward flow of hot air;

[0082] A fourth delivery pipe 692 is installed on the middle circular plate 69;

[0083] The middle circular plate 69 is hollow, and one end of the fourth delivery pipe 692 is connected to the hollow part of the middle circular plate 69, and the other end of the fourth delivery pipe 692 is connected to an external hot air blower;

[0084] The plurality of capillary tubes 67 are connected to the middle circular plate 69, and when the screw lift 65 is driven, the external hot air blower is started synchronously to blow out hot air, and the hot air is transported to the middle circular plate 69 through the fourth delivery pipe 692, and finally enters the plurality of capillary tubes 67 and is discharged outward from the opening 671, so that as the plurality of capillary tubes 67 are pumped back and forth, dry hot air is evenly discharged into the powder, the powder is dried, moisture is removed, and the powder is gradually dried, thereby effectively preventing the powder from absorbing moisture and causing oxidation during the recycling process, thereby ensuring the printing performance of the recycled powder when used for printing.

[0085] Optionally, the screening mechanism 7 includes a vibrating screen 71 arranged in the main chamber 1 and located directly below the first truncated plate 63, a collecting member 72 installed in the main chamber 1 and close to the vibrating screen 71, a second cylinder 73 connected to the bottom of the collecting member 72, a second closing plug 74 arranged at the bottom of the second cylinder 73, a second cone 75 installed on the second closing plug 74 and located in the second cylinder 73, a second truncated plate 76 installed on the circumference of the second closing plug 74, a top mounting plate 77 installed on the collecting member 72, a third electric cylinder 78 invertedly installed on the top mounting plate 77, and a conjoined vertical rod 79 installed on the second truncated plate 76. The vibrating screen 71 is a prior art composed of a screen, an exciter, etc., and will not be described in detail here. It only needs to be able to perform normal screening work and meet the screening requirements of powders.

[0086] The output shaft of the third electric cylinder 78 is connected to the connected vertical rod 79. After the powder is dispersed and dried, the second electric cylinder 691 is driven to push the horizontal plate 64 downward, thereby driving the first round table plate 63 and the first closing plug 62 to move downward, and gradually opening the bottom end of the first cylinder 61 to expose a certain gap for the powder in the first cylinder 61 to slide down along the first round table plate 63, and finally fall on the vibrating screen 71. The vibrating screen 71 screens the powder to remove pollutants and impurities therein to complete the screening work; the powder screened downward enters the collecting piece 72 and the second cylinder 73, and at the same time drives the third electric cylinder 78 to push the second round table plate 76, the second closing plug 74 and the second cone 75 downward, and opens the bottom end of the second cylinder 73 so that the powder can slide along It slides downward along the second frustum plate 76 and finally enters into the annular processing groove 82 below, thereby ensuring that the closing and opening of the bottom end of the second cylinder 73 can be freely controlled by the drive of the third electric cylinder 78, so that the screening mechanism 7 can quantitatively send the screened powder downward into the annular processing groove 82 for grinding each time, ensuring that the powder added to the annular processing groove 82 each time can be ground in the best state, ensuring that the powder can be fully ground, thereby effectively improving the grinding effect and ensuring the quality of the recycled powder; in addition, the speed at which the powder slides down from the first cylinder 61 along the first frustum plate 63 to the vibrating screen 71 can also be controlled by the second electric cylinder 691, thereby preventing the powder from accumulating on the vibrating screen 71 and ensuring the screening effect of the vibrating screen 71.

[0087] Optionally, the grinding mechanism 8 includes a circular plate 81 arranged on the main chamber 1, an annular processing groove 82 opened on the circular plate 81 and corresponding to the second truncated plate 76, a cylinder 83 rotatably mounted at the center of the circular plate 81, a positioning frame 84 mounted on the bottom of the circular plate 81, a motor 85 mounted on the positioning frame 84, and the output shaft of the motor 85 is connected to the cylinder 83, a ring 86 fitted on the cylinder 83, a connecting plate 87 connected to the ring 86, a connecting block 88 mounted on the bottom surface of the connecting plate 87, and a grinding plate 8 mounted on the connecting block 88 and fitted in the annular processing groove 82 9. After the screening mechanism 7 has laid a layer of powder in the annular processing groove 82, the driving motor 85 drives the cylinder 83 to rotate, and then drives the connecting plate 87 to rotate along the annular processing groove 82 through the ring 86, so that the grinding plate 89 grinds the powder in the annular processing groove 82 to remove the oxide layer and tiny defects on the surface of the powder and make the powder finer and more uniform, thereby improving the density and mechanical properties of the final printed part and improving the fluidity of the powder, and making it possible to lay the powder more evenly during the printing process; in addition, in the process of grinding the powder by the grinding plate 89, the agglomerated parts of the powder can be further broken up through continuous extrusion and friction to ensure the dispersion of the powder particles.

[0088] Optionally, the grinding mechanism 8 further includes a second top mounting plate 891 mounted on the top of the cylinder 83, and a fourth electric cylinder 892 invertedly mounted on the second top mounting plate 891;

[0089] The output shaft of the fourth electric cylinder 892 is connected to the ring 86. After the screening mechanism 7 lays a layer of powder in the annular processing groove 82, the fourth electric cylinder 892 is driven to adjust the grinding plate 89 to the optimal grinding height and then perform the grinding work. At the same time, after the grinding of the current layer of powder is completed, the ring 86 is pulled up by the fourth electric cylinder 892 to raise the grinding plate 89 to the height of one layer of powder, thereby cooperating with the laying of the lower layer of powder of the screening mechanism 7 to achieve equal thickness grinding of multiple batches.

[0090] Optionally, two triangular blocks 641 are installed on the horizontal plate 64;

[0091] The two triangular blocks 641 are tightly attached to the first frustum plate 63 on the left and right, and the two triangular blocks 641 are used to transform a part of the horizontal plate 64 into a sharp state without a horizontal surface, thereby preventing the powder in the first cylinder 61 from accumulating and staying on the horizontal plate 64 during the process of sliding up and down along the first frustum plate 63 toward the vibrating screen 71.

[0092] Optionally, two round handles 811 are installed at the bottom of the circular plate 81;

[0093] The circular plate 81 is spirally mounted on the main chamber 1, ensuring that the circular plate 81 can be removed from the main chamber 1 by holding the two round handles 811 and rotating them, while the main chamber 1 is lifted up by the pillars 3 and a plurality of universal wheels 4 to maintain a certain ground clearance, so that the powder after grinding can be processed or stored separately.

[0094] Optionally, it should be specifically stated that during the powder recycling process, the main chamber 1 needs to be filled with inert gas so that the entire recycling process is under the protection of the inert gas, which prevents the powder from undergoing oxidation reactions to a certain extent while maintaining its chemical stability to prevent the powder from exploding and other unexpected conditions that may cause safety accidents.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A powder 3D printer recycling component with grinding function, characterized in that: include: A main chamber (1), an edge strip (2) mounted at the bottom of the main chamber (1), a plurality of pillars (3) mounted in an array on the bottom surfaces of the main chamber (1) and the edge strip (2), a plurality of universal wheels (4) mounted respectively on the bottoms of the plurality of pillars (3), and a collecting mechanism (5), a loosening and hot drying mechanism (6), a screening mechanism (7) and a grinding mechanism (8) arranged in order from top to bottom on the main chamber (1); The loosening and drying mechanism (6) is connected to the collecting mechanism (5); The main chamber (1) is located in front of the printer (9); The collecting mechanism (5) is attached to the printing platform (10) on the printer (9), wherein: After driving the collecting mechanism (5), the powder on the printing platform (10) is transported outwards, so as to guide the powder to the loosening and drying mechanism (6); The loosening and drying mechanism (6) is suitable for reciprocatingly stabbing the powder and discharging a dry hot air flow inside the powder to loosen the powder and dehumidify it; The grinding mechanism (8) is suitable for grinding powder and can gradually increase the grinding height to achieve quantitative grinding of the powder; The collecting mechanism (5) comprises two retaining arms (51) mirror-mounted on both side surfaces of the main chamber (1), two side upright plates (52) respectively mounted on the two retaining arms (51), and the bottom surfaces of the two side upright plates (52) are flush with the surface of the printing platform (10), a top strip (53) slidably mounted between the two side upright plates (52), two clamping plates (54) spaced apart and mounted at the bottom of the top strip (53), a shovel plate (55) fitted between the two clamping plates (54), a plurality of springs (56) with one end equidistantly mounted on the top of the shovel plate (55) and the other end mounted on the bottom of the top strip (53), and a plurality of springs (56) mounted on the two A bending plate (57) located between the side upright plates (52) and in front of the printing platform (10), and the bending plate (57) extends obliquely downward into the main chamber (1); a triangular strip plate (58) connected to the head end of the bending plate (57); two side baffles (59) installed on both sides of the bending plate (57) and respectively connected to the two side upright plates (52); a pad (591) installed on the top of the main chamber (1); a first electric cylinder (592) installed on the pad (591); and a force-bearing plate (593) installed on the top strip plate (53); and an output shaft of the first electric cylinder (592) is connected to the force-bearing plate (593); The printing platform (10) is located between the two side panels (52); The bottom surfaces of the shovel plate (55), the bent plate (57), and the triangular strip plate (58) are all flush with the bottom surfaces of the two side upright plates (52); The two side upright plates (52) protrude from the horizontal portion of the bent plate (57); The loosening heat drying mechanism (6) comprises a first cylinder (61) installed at the end of the bending plate (57), a first closing plug (62) arranged at the bottom of the first cylinder (61), a first round table plate (63) installed on the peripheral side of the first closing plug (62), and a transverse plate (64) installed on the bottom end of the first round table plate (63), and the two ends of the transverse plate (64) are movably installed on the inner side wall of the main chamber (1), and a first closing plug (62) is installed on the first round table plate (63) at the center. ), a first cone (66) mounted on the first closing plug (62) and located in the first cylinder (61), a plurality of thin tubes (67) slidably inserted in an array on the first cone (66) and the first closing plug (62), a plurality of spike cones (68) respectively mounted on the top ends of the plurality of thin tubes (67), an intermediate circular plate (69) mounted on the output end of the screw lifter (65), and a second electric cylinder (691) mounted on the inner wall of the main chamber (1); The bottom ends of the plurality of thin tubes (67) are connected to the middle circular plate (69); The output shaft of the second electric cylinder (691) is connected to the transverse plate (64); A portion of the top surface of the first cylinder (61) is in contact with the two side baffles (59); Openings (671) are provided on the plurality of thin tubes (67) at positions close to the plurality of spike cones (68); A fourth delivery pipe (692) is installed on the middle circular plate (69); The middle circular plate (69) is hollow, and one end of the fourth delivery pipe (692) is connected to the hollow portion of the middle circular plate (69), and the other end of the fourth delivery pipe (692) is connected to an external hot air blower; A plurality of the thin tubes (67) are connected to the intermediate circular plate (69).

2. A powder 3D printer recycling component with grinding function as claimed in claim 1, characterized in that: The collecting mechanism (5) further comprises a processing room (594) installed on the back of the top strip (53), and the processing room (594) is close to the back of the clamping plate (54) and the shovel plate (55) located at the rear, an external blowing port (595) installed on the processing room (594) and connected to the inside of the processing room (594), a first delivery pipe (596) connected to the external blowing port (595) at one end, a transfer box (597) located in front of the external blowing port (595), and a transfer box (597) at one end. A plurality of suction pipe heads (598) connected to the transfer box (597) at intervals and connected to the interior of the processing room (594) at the other end; a negative pressure fan (599) arranged at the top of the main chamber (1); a second delivery pipe (5991) connected to the inlet of the negative pressure fan (599) at one end and connected to the transfer box (597) at the other end; and a third delivery pipe (5992) connected to the outlet of the negative pressure fan (599) at one end and bent and extended to the top of the bending plate (57) at the other end; The other end of the first delivery pipe (596) is connected to an external blower; The bottom surface of the processing room (594) is flush with the bottom surface of the shovel plate (55).

3. A powder 3D printer recycling component with grinding function as claimed in claim 2, characterized in that: The screening mechanism (7) comprises a vibrating screen (71) arranged in the main chamber (1) and located directly below the first truncated plate (63), a collecting member (72) installed in the main chamber (1) and close to the vibrating screen (71), a second cylinder (73) connected to the bottom of the collecting member (72), a second closing plug (74) arranged at the bottom of the second cylinder (73), a second cone (75) installed on the second closing plug (74) and located in the second cylinder (73), a second truncated plate (76) installed on the circumference of the second closing plug (74), a top mounting plate (77) installed on the collecting member (72), a third electric cylinder (78) invertedly mounted on the top mounting plate (77), and a connected vertical rod (79) installed on the second truncated plate (76); The output shaft of the third electric cylinder (78) is connected to the connected vertical rod (79).

4. A powder 3D printer recycling component with grinding function as claimed in claim 3, characterized in that: The grinding mechanism (8) comprises a circular plate (81) arranged on the main chamber (1), an annular processing groove (82) provided on the circular plate (81) and corresponding to the second truncated plate (76), a cylinder (83) rotatably mounted at the center of the circular plate (81), a positioning frame (84) mounted on the bottom of the circular plate (81), a motor (85) mounted on the positioning frame (84), and the output shaft of the motor (85) is connected to the cylinder (83), a circular ring (86) fitted on the cylinder (83), a connecting plate (87) connected to the circular ring (86), a connecting block (88) mounted on the bottom surface of the connecting plate (87), and a grinding plate (89) mounted on the connecting block (88) and fitted in the annular processing groove (82).

5. A powder 3D printer recycling component with grinding function as claimed in claim 4, characterized in that: The grinding mechanism (8) further comprises a second top mounting plate (891) mounted on the top end of the cylinder (83), and a fourth electric cylinder (892) mounted inverted on the second top mounting plate (891); The output shaft of the fourth electric cylinder (892) is connected to the circular ring (86).

6. A powder 3D printer recycling component with grinding function as claimed in claim 5, characterized in that: Two triangular blocks (641) are mounted on the transverse plate (64); The two triangular blocks (641) are tightly attached to the first frustum plate (63), one on the left and one on the right.

7. A powder 3D printer recycling component with grinding function as claimed in claim 6, characterized in that: Two round handles (811) are installed at the bottom of the circular plate (81); The circular plate member (81) is screw-mounted on the main chamber (1).

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