CN114619053A - Printable metal powder's fused deposition type 3D printing device - Google Patents
Printable metal powder's fused deposition type 3D printing device Download PDFInfo
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- CN114619053A CN114619053A CN202210271407.2A CN202210271407A CN114619053A CN 114619053 A CN114619053 A CN 114619053A CN 202210271407 A CN202210271407 A CN 202210271407A CN 114619053 A CN114619053 A CN 114619053A
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- 239000002184 metal Substances 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 title claims abstract description 33
- 238000010146 3D printing Methods 0.000 title claims abstract description 21
- 230000008021 deposition Effects 0.000 title claims abstract description 17
- 238000007639 printing Methods 0.000 claims abstract description 221
- 239000000463 material Substances 0.000 claims abstract description 165
- 230000007246 mechanism Effects 0.000 claims abstract description 122
- 238000003756 stirring Methods 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/50—Means for feeding of material, e.g. heads
- B22F12/55—Two or more means for feeding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Screen Printers (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a fused deposition type 3D printing device capable of printing metal powder, which belongs to the technical field of 3D printing and comprises a bottom plate, wherein a printing material cylinder and an adjusting mechanism are arranged at the upper end of the bottom plate, and the adjusting mechanism is used for driving the printing material cylinder to continuously move to different printing positions; a first piston plate is arranged in the printing material cylinder and is in sliding fit with the inner wall of the printing material cylinder; a first driving mechanism is arranged at the upper end of the printing material cylinder; the surface of the first piston plate is provided with a stirring mechanism; the outer side surface of the printing material barrel is provided with a feeding mechanism, and the feeding mechanism is used for automatically conveying the printing material into the printing material barrel when the first piston plate slides upwards at the bottommost position in the printing material barrel; the device can be when printing the work piece through rabbling mechanism, can effectually prevent that printing material from solidifying, when printing through the printing material in printing the feed cylinder and having printed, automatic transport new printing material in printing the feed cylinder.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a fused deposition type 3D printing device capable of printing metal powder.
Background
The 3D printing technique refers to a technique of generating a three-dimensional entity by superimposing successive physical layers and adding material layer by layer, and is different from a conventional material-removing processing technique, and is also called additive manufacturing. The fused deposition modeling adopts a hot melt nozzle, so that the material in a semi-flow state is extruded and stacked at a specified position according to a path controlled by CAD layered data to be solidified into a prototype, the prototype or the part is extruded and stacked layer by layer, and the whole prototype or the part is formed after solidification.
When the existing 3D printing device prints metal powder, the metal powder and paste liquid are mixed in a charging barrel, then the mixed materials in the charging barrel are extruded and stacked together along a certain track, and the extruded materials can be rapidly solidified to form a 3D workpiece; however, as the 3D printing time is long, the mixture in the cylinder gradually solidifies during long-time printing, and the fluidity of the mixture is poor, thereby affecting the overall printing effect; meanwhile, after the printing material in the material cylinder is printed, new printing material needs to be mixed again and injected into the material cylinder, and the operation is complex.
Based on the above, the invention designs a fused deposition type 3D printing device capable of printing metal powder to solve the above problems.
Disclosure of Invention
The invention aims to provide a fused deposition type 3D printing device capable of printing metal powder, and the device is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a fused deposition type 3D printing device capable of printing metal powder comprises a bottom plate, wherein a printing material cylinder and an adjusting mechanism are arranged at the upper end of the bottom plate, and the adjusting mechanism is used for driving the printing material cylinder to continuously move to different printing positions; a first piston plate is arranged in the printing material cylinder and is in sliding fit with the inner wall of the printing material cylinder; the upper end of the printing material barrel is provided with a first driving mechanism, and the first driving mechanism is used for driving a first piston plate to slide up and down in the printing material barrel to extrude printing materials in the printing material barrel; the surface of the first piston plate is provided with a stirring mechanism, and the stirring mechanism is used for automatically stirring the printing material in the printing material cylinder when the first piston plate slides up and down; the outer side surface of the printing material barrel is provided with a feeding mechanism, and the feeding mechanism is used for automatically conveying the printing material into the printing material barrel when the first piston plate slides upwards at the bottommost position in the printing material barrel.
The first driving mechanism comprises a first fixing frame, the first fixing frame is fixedly connected with the printing material cylinder, the upper end surface of the first fixing frame is fixedly connected with a first motor, and the bottom end of an output shaft of the first motor is fixedly connected with a first gear; the bottom end of the first fixing frame is rotatably connected with a first rotating frame, the surface of the first rotating frame is fixedly connected with an outer gear ring, and the outer gear ring is meshed with a first gear; a first threaded rod is arranged in the middle of the first rotating frame and is in sliding connection with the first rotating frame, and the first threaded rod is in threaded fit with the first fixing frame; the first piston plate is fixedly connected with the bottom end of the first threaded rod, and the first threaded rod has self-locking performance.
The stirring mechanism comprises a first conveyor belt, and the surface of the first conveyor belt is connected with a plurality of stirring rods in a sliding manner; the surface of the first piston plate is provided with a groove which is communicated up and down, the first conveyor belt is positioned in the groove, and two rotating shafts in the first conveyor belt are rotatably connected with the first piston plate; the surfaces of the upper end and the lower end of the first conveyor belt are hermetically attached to the inner wall of the groove; the upper ends of the two rotating shafts in the first conveyor belt are fixedly connected with first telescopic rods, and the first telescopic rods are rotatably connected with a first piston plate; a second transmission belt is arranged at the bottom end of the first rotating frame, two rotating shafts in the second transmission belt are both rotatably connected with the first rotating frame, and the two rotating shafts in the second transmission belt are respectively fixedly connected with the two first telescopic rods; the upper end of the stirring rod is rotationally connected with a second transmission belt; and the surface of the first rotating frame is provided with a second driving mechanism, and the second driving mechanism is used for driving a second transmission belt to perform reciprocating transmission when the first piston plate slides up and down and starting to drive the feeding mechanism to operate when the first piston plate moves to the bottommost position in the printing material cylinder.
The second driving mechanism comprises two second gears which are distributed at the left side and the right side of the first rotating frame and are in rotating connection with the first rotating frame; the two second gears are respectively and fixedly connected with two rotating shafts in the second transmission belt; the left side and the right side of the bottom end of the first fixing frame are fixedly connected with a first arc-shaped rack, the front side and the rear side of the bottom end of the first fixing frame are symmetrically and fixedly connected with a second arc-shaped rack, and the second gear is alternately meshed with the first arc-shaped rack and the second arc-shaped rack; the radius of the second arc-shaped rack is larger than that of the first arc-shaped rack, and the number of teeth on the surfaces of the first arc-shaped rack and the second arc-shaped rack is equal.
The feeding mechanism comprises two feeding barrels, the two feeding barrels are distributed at the left side and the right side of the printing barrel, and the two feeding barrels and the feeding barrels at the left side and the right side of the printing barrel are respectively provided with paste liquid and metal powder; the bottom end parts of the upper charging barrels on the left side and the right side are communicated with the bottom end part of the printing charging barrel, sealing plates are connected to the positions of the connecting parts of the interior of the upper charging barrel and the printing charging barrel in a sliding mode, first sliding rods are fixedly connected to the front side and the rear side of the surface of each sealing plate, the first sliding rods are connected with the printing charging barrel in a sliding mode, first springs are sleeved on the surfaces of the first sliding rods, one ends of the first springs are fixedly connected with the printing charging barrel, and the other ends of the first springs are fixedly connected with the first sliding rods; a second threaded rod is rotatably connected to the bottom end of the middle part in the upper charging barrel on the left side, a second piston plate is in threaded fit with the surface of the second threaded rod, and the second piston plate is in sealing fit with the inner wall of the upper charging barrel on the left side; the second threaded rod has self-locking property; a protection box is fixedly connected to the bottom end of the middle part in the upper charging barrel on the right side, a first bevel gear and a second bevel gear are respectively connected to the upper side position and the left side position in the protection box in a rotating mode, and the first bevel gear is meshed with the second bevel gear; the left end of the second bevel gear is fixedly connected with a packing auger, and the packing auger is rotationally connected with the upper charging barrel on the right side; and the left side and the right side are provided with third driving mechanisms at the upper end positions of the upper charging barrels, and the third driving mechanisms are used for butting the third driving mechanisms with the second driving mechanisms when the first piston plate moves to the bottommost position and separating the third driving mechanisms from the second driving mechanisms when the first piston plate moves to the topmost position.
The third driving mechanism comprises two sliding plates which are distributed at the left side and the right side of the upper part of the printing material barrel, and the two sliding plates are both connected with the printing material barrel and the first fixing frame in a sliding manner; a first sliding groove is formed in the edge position of the inner part of the sliding plate, and a toothed belt is connected in the first sliding groove in a sliding mode; the first sliding grooves on the surfaces of the sliding plates on the left side and the right side are in arc shapes at the parts close to each other, and the bending degree and the radius of the first sliding grooves are consistent with those of the second arc-shaped racks; the toothed belt is meshed with a second gear; the parts, far away from each other, of the inner parts of the sliding plates on the left side and the right side are respectively provided with a roller wheel, the roller wheels are rotationally connected with the sliding plates, and the roller wheels are attached to the surfaces of the toothed belts; the bottom end of the roller is fixedly connected with a first universal joint, the bottom end of the first universal joint is fixedly connected with a second telescopic rod, the bottom end of the second telescopic rod is fixedly connected with a second universal joint, the bottom end of the second universal joint on the left side is fixedly connected with a second threaded rod, and the bottom end of the second universal joint on the right side is fixedly connected with a first bevel gear; and the upper end surface of the first threaded rod is provided with a fourth driving mechanism, the fourth driving mechanism is used for driving the sliding plates on the left side and the right side to slide to the position where the toothed belt is meshed with the second gear towards the inner side when the first threaded rod moves to the bottommost position, and the sliding plates are reset when the first threaded rod moves to the topmost position.
The fourth driving mechanism comprises a rotating rod and two second fixing frames, the rotating rod is rotatably connected with the upper end surface of the first threaded rod, and the two second fixing frames are fixedly connected with the left side and the right side of the upper end of the printing material cylinder; a second sliding rod is slidably connected in the second fixing frame, the bottom end of the second sliding rod is rotatably connected with a connecting rod, and the bottom end of the connecting rod is rotatably connected with the sliding plate; the front side and the rear side of the upper end of the second sliding rod are symmetrically and fixedly connected with fixed rods; clamping blocks are symmetrically and fixedly connected to the upper end of the second fixing frame and located on the front side and the rear side of the fixing rod, the clamping blocks are made of elastic metal materials, and the clamping blocks are clamped and matched with the fixing rod; the front end and the rear end of the bottom of the second fixing frame are symmetrically and fixedly connected with baffles; the left end and the right end of the rotating rod are symmetrically and fixedly connected with pressure rods, the pressure rods are attached to the upper end part of the fixed rod, the bottom end of each pressure rod is fixedly connected with a third telescopic rod, the bottom end of each third telescopic rod is fixedly connected with a pull rod, the bottom end of each pull rod is attached to the upper end part of the baffle, and the upper end of each pull rod is attached to the bottom end part of the fixed rod; the surface symmetry fixedly connected with third spring in both ends around the fixed plate, the third spring other end and print the feed cylinder fixed connection.
The adjusting mechanism comprises a second sliding chute, a sliding column is connected in the second sliding chute in a sliding mode, a third threaded rod is connected in the second sliding chute in a rotating mode, and the third threaded rod is in threaded fit with the sliding column; the surface of the left end of the bottom plate is fixedly connected with a second motor, and an output shaft of the second motor is fixedly connected with a third threaded rod; a third sliding groove is formed in the sliding column, a sliding block is connected in the third sliding groove in a sliding mode, a fourth threaded rod is connected in the third sliding groove in a rotating mode, and the fourth threaded rod is in threaded fit with the sliding block; the upper end of the sliding column is fixedly connected with a third motor, and the bottom end of an output shaft of the third motor is fixedly connected with a fourth threaded rod; the front end of the sliding block is fixedly connected with an air cylinder, and the front end of the air cylinder is fixedly connected with a printing material cylinder; and the third threaded rod and the fourth threaded rod are self-locking.
Compared with the prior art, the invention has the beneficial effects that:
1. the first driving mechanism drives the first piston plate to move downwards, the first piston plate can extrude printing materials in the printing material barrel out for printing when moving downwards, and the stirring mechanism can continuously stir the printing materials in the printing material barrel in the process of moving downwards of the first piston plate, so that the phenomenon that the printing materials in the printing material barrel are solidified due to overlong printing time can be effectively prevented; the first driving mechanism drives the first piston plate to extrude printing materials in the printing material barrel, and then the adjusting mechanism is driven to drive the printing material barrel to a plurality of printing positions for printing, so that the effect of printing a workpiece can be realized; when the first piston plate moves to the bottommost position in the printing material cylinder, the printing material in the printing material cylinder is completely extruded at the moment, the first driving mechanism starts to drive the first piston plate to move upwards, the feeding mechanism starts to automatically convey the metal powder and the paste liquid into the printing material cylinder in the process that the first piston plate moves upwards, and meanwhile, the stirring mechanism fully stirs and mixes the metal powder and the paste liquid together, so that the effects of automatically feeding and fully mixing the printing material together after the printing material in the printing material cylinder is completely consumed are achieved.
2. When the first driving mechanism drives the first piston plate and the first threaded rod to move downwards to extrude printing materials in the printing material cylinder, the first driving mechanism can drive the printing rods to continuously move in a reciprocating manner in the groove on the surface of the first piston plate through the second driving mechanism to stir the printing materials in the printing material cylinder; when the first piston plate and the first threaded rod move to the bottommost position, the first threaded rod drives the third driving mechanism to be in butt joint with the second driving mechanism through the fourth driving mechanism; when the first driving mechanism drives the first piston plate and the first threaded rod to move upwards, the second driving mechanism can drive the third driving mechanism to run intermittently and drive the stirring rods to stir continuously, the third driving mechanism can drive the feeding barrels on the left side and the right side to convey printing materials intermittently to the printing material barrels, when a part of the printing materials enter the printing material barrels, the printing materials can be stirred and mixed uniformly by the stirring rods rapidly, so that the printing materials can be prevented from entering the printing material barrels in large quantities at one time, the stirring and mixing effects are influenced, meanwhile, the printing materials intermittently enter the printing material barrels, when the first piston plate moves to the uppermost position in the printing material barrels, the printing materials in the printing material barrels cannot be too much, and the printing materials in the printing material barrels can be extruded completely in a short time, the phenomenon that the printing material is easy to solidify when being in the printing material cylinder for a long time is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of a printing material cylinder and a charging cylinder in the present invention;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a schematic view of a print cartridge according to the present invention;
FIG. 5 is a schematic cross-sectional view of a top view of a print cartridge of the present invention;
FIG. 6 is a schematic cross-sectional view of a front view of a print cartridge of the present invention;
FIG. 7 is an enlarged view of B in FIG. 6;
FIG. 8 is a schematic structural view of a feeding mechanism according to the present invention;
FIG. 9 is an enlarged view of C in FIG. 8;
FIG. 10 is a schematic view of a fourth driving mechanism according to the present invention;
fig. 11 is an enlarged schematic view of D in fig. 10.
In the drawings, the components represented by the respective reference numerals are listed below:
the printing device comprises a bottom plate 1, a printing material cylinder 2, a first piston plate 3, a first fixing frame 4, a first motor 5, a first gear 6, a first rotating frame 7, an outer gear ring 8, a first conveying belt 9, a stirring rod 10, a groove 11, a first telescopic rod 12, a second conveying belt 13, a second gear 14, a first arc-shaped rack 15, a second arc-shaped rack 16, a feeding cylinder 17, a sealing plate 18, a first sliding rod 19, a first spring 20, a second threaded rod 21, a second piston plate 22, a protective box 23, a first bevel gear 24, a second bevel gear 25, a packing auger 26, a sliding plate 27, a first sliding chute 28, a toothed belt 29, a roller 30, a first universal joint 31, a second telescopic rod 32, a second universal joint 33, a rotating rod 34, a second fixing frame 35, a second sliding rod 36, a connecting rod 37, a fixing rod 38, a clamping block 39, a baffle 40, a pressing rod 41, a third telescopic rod 42, a pull rod 43, a third spring 44, a second sliding chute 45, a stirring rod 19, a stirring rod, a groove 10, a groove and a groove, The sliding device comprises a sliding column 46, a third threaded rod 47, a second motor 48, a third sliding chute 49, a sliding block 50, a fourth threaded rod 51, a third motor 52, an air cylinder 53 and a first threaded rod 54.
Detailed Description
Referring to fig. 1-11, the present invention provides a technical solution: a fused deposition type 3D printing device capable of printing metal powder comprises a bottom plate 1, wherein a printing material cylinder 2 and an adjusting mechanism are arranged at the upper end of the bottom plate 1, and the adjusting mechanism is used for driving the printing material cylinder 2 to continuously move to different printing positions; a first piston plate 3 is arranged in the printing material cylinder 2, and the first piston plate 3 is in sliding fit with the inner wall of the printing material cylinder 2; a first driving mechanism is arranged at the upper end of the printing material barrel 2 and is used for driving the first piston plate 3 to slide up and down in the printing material barrel 2 to extrude printing materials in the printing material barrel 2; the surface of the first piston plate 3 is provided with a stirring mechanism, and the stirring mechanism is used for automatically stirring the printing material in the printing material cylinder 2 when the first piston plate 3 slides up and down; the outer side surface of the printing material barrel 2 is provided with a feeding mechanism, and the feeding mechanism is used for automatically conveying the printing material into the printing material barrel 2 when the first piston plate 3 slides upwards at the bottommost position in the printing material barrel 2;
when the metal powder and the paste liquid are mixed in the printing material cylinder 2 during working, because the printing time is long, the printing material in the printing material cylinder 2 is easy to solidify, the fluidity of the printing material is poor, and the printing effect is influenced; the device drives the first piston plate 3 to move downwards through the first driving mechanism, the first piston plate 3 can extrude printing materials in the printing material barrel 2 out to print when moving downwards, and the stirring mechanism can continuously stir the printing materials in the printing material barrel 2 in the process of moving downwards of the first piston plate 3, so that the phenomenon that the printing materials in the printing material barrel 2 are solidified due to overlong printing time can be effectively prevented; the first driving mechanism drives the first piston plate 3 to extrude printing materials in the printing material barrel 2, and then the adjusting mechanism is driven to drive the printing material barrel 2 to a plurality of printing positions for printing, so that the effect of printing a workpiece can be realized; when the first piston plate 3 moves to the bottommost position in the printing material cylinder 2, the printing material in the printing material cylinder 2 is completely extruded at the moment, the first driving mechanism starts to drive the first piston plate 3 to move upwards, the feeding mechanism starts to automatically convey the metal powder and the paste liquid into the printing material cylinder 2 in the process that the first piston plate 3 moves upwards, and meanwhile, the stirring mechanism fully stirs and mixes the metal powder and the paste liquid together, so that the effects of automatically feeding and fully mixing the printing material together after the printing material in the printing material cylinder 2 is completely consumed are achieved.
As a further scheme of the invention, the first driving mechanism comprises a first fixing frame 4, the first fixing frame 4 is fixedly connected with the printing material cylinder 2, the surface of the upper end of the first fixing frame 4 is fixedly connected with a first motor 5, and the bottom end of an output shaft of the first motor 5 is fixedly connected with a first gear 6; the bottom end of the first fixed frame 4 is rotatably connected with a first rotating frame 7, the surface of the first rotating frame 7 is fixedly connected with an outer gear ring 8, and the outer gear ring 8 is meshed with the first gear 6; a first threaded rod 54 is arranged in the middle of the first rotating frame 7, the first threaded rod 54 is connected with the first rotating frame 7 in a sliding mode, and the first threaded rod 54 is in threaded fit with the first fixing frame 4; the first piston plate 3 is fixedly connected with the bottom end of the first threaded rod 54, and the first threaded rod 54 has self-locking property; when the printer works, the printing material in the printing material barrel 2 can be extruded out only by moving the first piston plate 3 downwards; can drive first gear 6 and rotate through starting first motor 5, can drive outer ring gear 8 when first gear 6 rotates and rotate, outer ring gear 8 drives first rotating frame 7 and begins to rotate on first mount 4 surface, can drive first threaded rod 54 and rotate when first rotating frame 7 rotates, then can drive first piston plate 3 and rotate when first threaded rod 54 rotates, simultaneously under the effect of first mount 4, first threaded rod 54 drives first piston plate 3 and moves down, can extrude the printing material in the printing feed cylinder 2 when moving down through first piston plate 3.
As a further scheme of the present invention, the stirring mechanism comprises a first conveyor belt 9, wherein a plurality of stirring rods 10 are connected to the surface of the first conveyor belt 9 in a sliding manner; a groove 11 which is through up and down is formed in the surface of the first piston plate 3, the first conveyor belt 9 is located in the groove 11, and two rotating shafts in the first conveyor belt 9 are rotatably connected with the first piston plate 3; the surfaces of the upper end and the lower end of the first conveyor belt 9 are hermetically attached to the inner wall of the groove 11; the upper ends of the two rotating shafts in the first conveyor belt 9 are fixedly connected with first telescopic rods 12, and the first telescopic rods 12 are rotatably connected with the first piston plate 3; a second transmission belt 13 is arranged at the bottom end of the first rotating frame 7, two rotating shafts in the second transmission belt 13 are rotatably connected with the first rotating frame 7, and the two rotating shafts in the second transmission belt 13 are fixedly connected with two first telescopic rods 12 respectively; the upper end of the stirring rod 10 is rotationally connected with a second transmission belt 13; the surface of the first rotating frame 7 is provided with a second driving mechanism, the second driving mechanism is used for driving a second transmission belt 13 to perform reciprocating transmission when the first piston plate 3 slides up and down, and starts to drive the feeding mechanism to operate when the first piston plate 3 moves to the bottommost position in the printing material cylinder 2; when the automatic feeding device works, because the time is long when a workpiece is printed, the printing material in the printing material barrel 2 can be solidified for a long time, when the first piston plate 3 is driven by the first driving mechanism to move downwards to extrude the printing material, the first rotating frame 7 and the first piston plate 3 respectively drive the second driving belt 13 and the first driving belt 9 to rotate along with the first rotating frame 7 and the first piston plate 3, and the first driving belt 9 and the second driving belt 13 can drive the stirring rods 10 to rotate along with the first piston plate 3; because the recess 11 on first piston plate 3 surface can't be a continuous recess 11, under the effect of second actuating mechanism, second drive belt 13 begins continuous reciprocal transmission, second drive belt 13 can drive first drive belt 9 through first telescopic link 12 and follow second drive belt 13 reciprocal transmission, under the effect of first drive belt 9 and second drive belt 13, all puddlers 10 are when following first piston plate 3 pivoted, still can be along the reciprocal transmission of the orbit of first drive belt 9, thereby can reach when the piston plate moves down and extrudes the printing material, the continuous stirring printing material of puddler 10 can be, can effectually prevent that the phenomenon that the printing material from solidifying from appearing, promote the printing effect of device.
As a further scheme of the present invention, the second driving mechanism includes two second gears 14, the two second gears 14 are distributed at left and right sides of the first rotating frame 7, and the second gears 14 are rotatably connected with the first rotating frame 7; the two second gears 14 are respectively fixedly connected with two rotating shafts in the second transmission belt 13; the left side and the right side of the bottom end of the first fixing frame 4 are fixedly connected with first arc-shaped racks 15, the front side and the rear side of the bottom end of the first fixing frame are symmetrically and fixedly connected with second arc-shaped racks 16, and the second gears 14 are alternately meshed with the first arc-shaped racks 15 and the second arc-shaped racks 16; the radius of the second arc-shaped rack 16 is larger than that of the first arc-shaped rack 15, and the number of teeth on the surfaces of the first arc-shaped rack 15 and the second arc-shaped rack 16 is equal; when the automatic transmission device works, when the first driving mechanism drives the first rotating frame 7 to rotate, the first rotating frame 7 can drive the second gears 14 on the left side and the right side of the surface of the first rotating frame 7 to rotate along with the first rotating frame 7, when the first rotating frame 7 drives the second gears 14 to rotate to the front side and the rear side, the second gears 14 on the front side and the rear side are respectively meshed with the second arc-shaped racks 16 on the front side and the rear side, and under the action of the second arc-shaped racks 16, the second gears 14 start to rotate, and the second driving belt 13 can be driven to transmit through the second gears 14; when the first rotating frame 7 drives the second gear 14 to rotate to the left and right sides, the second gear 14 on the left and right sides is meshed with the first arc-shaped rack 15 on the left and right sides respectively, under the action of the first arc-shaped rack 15, the second gear 14 starts to rotate reversely, and simultaneously the second gear 14 drives the second transmission belt 13 to transmit in the reverse direction; the second gear 14 is rotated to and fro continuously to drive the stirring rod to stir the printing material in the groove 11 on the surface of the first piston plate 3.
As a further scheme of the invention, the feeding mechanism comprises two feeding barrels 17, the two feeding barrels 17 are distributed at the left and right sides of the printing barrel 2, and the two feeding barrels 17 are both fixedly connected with the printing barrel 2; the left and right side charging barrels are respectively provided with paste liquid and metal powder; the bottom end parts of the upper charging barrels 17 on the left side and the right side are communicated with the bottom end part of the printing charging barrel 2, the sealing plates 18 are connected to the positions of the connecting parts of the inner parts of the upper charging barrels 17 and the printing charging barrel 2 in a sliding mode, first sliding rods 19 are fixedly connected to the front side and the rear side of the surface of each sealing plate 18, the first sliding rods 19 are connected with the printing charging barrel 2 in a sliding mode, first springs 20 are sleeved on the surfaces of the first sliding rods 19, one ends of the first springs 20 are fixedly connected with the printing charging barrel 2, and the other ends of the first springs 20 are fixedly connected with the first sliding rods 19; a second threaded rod 21 is rotatably connected to the bottom end position of the middle part in the left upper charging barrel 17, a second piston plate 22 is in threaded fit with the surface of the second threaded rod 21, and the second piston plate 22 is in sealing fit with the inner wall of the left upper charging barrel 17; the second threaded rod 21 has self-locking property; the bottom end of the middle part in the upper charging barrel 17 on the right side is fixedly connected with a protection box 23, the upper side position and the left side position in the protection box 23 are respectively and rotatably connected with a first bevel gear 24 and a second bevel gear 25, and the first bevel gear 24 is meshed with the second bevel gear 25; the left end of the second bevel gear 25 is fixedly connected with the packing auger 26, and the packing auger 26 is rotationally connected with the upper charging barrel 17 on the right side; the upper end positions of the charging barrels 17 on the left side and the right side are provided with third driving mechanisms, and the third driving mechanisms are used for butting with the second driving mechanisms when the first piston plate 3 moves to the bottommost position and separating from the second driving mechanisms when the first piston plate 3 moves to the topmost position; when the printer works, when the first driving mechanism drives the first piston plate 3 to move downwards to the bottommost position, the first piston plate 3 just extrudes all printing materials in the printing material barrel 2 completely; at this time, the third driving mechanism starts to be in butt joint with the second driving mechanism, when the first piston plate 3 starts to move upwards, the first driving mechanism drives the second driving mechanism to operate, the second driving mechanism drives the third driving mechanism to operate, the second threaded rod 21 and the first bevel gear 24 in the charging barrel 17 on the left and right sides can be simultaneously driven to rotate through the third driving mechanism, the second piston plate 22 in the charging barrel 17 on the left side can be driven to move downwards through the rotation of the second threaded rod 21, the paste liquid in the charging barrel 17 on the left side can start to be extruded when the second piston plate 22 moves downwards, the paste liquid starts to be extruded on the sealing plate 18 at the left side position of the printing charging barrel 2, when the pressure of the paste liquid on the sealing plate 18 is greater than the elastic force of the first spring 20, the first spring 20 is compressed at this time, the sealing plate 18 at the left side position starts to move towards the inside of the printing charging barrel 2, when the sealing plate 18 is moved to the position inside the printing cartridge 2, the paste liquid in the cartridge 17 on the left side flows into the printing cartridge 2; similarly, the first bevel gear 24 can drive the second bevel gear 25 to rotate when rotating, the second bevel gear 25 can drive the packing auger 26 to rotate when rotating, the metal powder in the charging barrel 17 on the right side can be driven into the printing charging barrel 2 under the action of the packing auger 26, the metal powder can extrude the sealing plate 18 on the right side, and when the extrusion force of the metal powder on the sealing plate 18 on the right side reaches a certain degree, the metal powder can be directly extruded into the printing charging barrel 2; when part of the metal powder and the paste liquid enter the printing material cylinder 2, the first piston plate 3 continues to move upwards, and the stirring mechanism can continuously stir the paste liquid and the metal powder; therefore, the automatic injection device has the function that after the printing materials in the printing material barrel 2 are consumed, new printing materials can be automatically injected into the printing material barrel 2.
As a further aspect of the present invention, the third driving mechanism includes two sliding plates 27, the two sliding plates 27 are distributed at the left and right sides of the upper portion of the printing material cylinder 2, and both the two sliding plates 27 are slidably connected with the printing material cylinder 2 and the first fixing frame 4; a first sliding chute 28 is formed in the edge position inside the sliding plate 27, and a toothed belt 29 is connected in the first sliding chute 28 in a sliding manner; the first sliding grooves 28 on the surfaces of the left and right sliding plates 27 are arc-shaped at the parts close to each other and the bending degree and the radius are consistent with those of the second arc-shaped rack 16; the toothed belt 29 meshes with the second gear 14; the parts, far away from each other, of the left and right sliding plates 27 are respectively provided with a roller 30, the rollers 30 are rotatably connected with the sliding plates 27, and the rollers 30 are attached to the surface of the toothed belt 29; the bottom end of the roller 30 is fixedly connected with a first universal joint 31, the bottom end of the first universal joint 31 is fixedly connected with a second telescopic rod 32, the bottom end of the second telescopic rod 32 is fixedly connected with a second universal joint 33, the bottom end of the left second universal joint 33 is fixedly connected with the second threaded rod 21, and the bottom end of the right second universal joint 33 is fixedly connected with the first bevel gear 24; the upper end surface of the first threaded rod 54 is provided with a fourth driving mechanism for driving the sliding plates 27 on the left and right sides to slide to the inner side position to the position where the toothed belt 29 is engaged with the second gear 14 when the first threaded rod 54 moves to the lowermost position, and for resetting the sliding plates 27 when the first threaded rod 54 moves to the uppermost position; during operation, when the third driving mechanism is in butt joint with the second driving mechanism, the toothed belt 29 on the surface of the sliding plate 27 is at a position meshed with the second gear 14, when the first rotating frame 7 drives the second gear 14 to rotate to a position meshed with the toothed belt 29, the second gear 14 starts to be meshed with the first arc-shaped rack 15, under the action of the first arc-shaped rack 15, the second gear 14 starts to rotate and drives the toothed belt 29 to start transmission, the toothed belt 29 drives the roller 30 in contact therewith to rotate during transmission, the roller 30 drives the first universal joint 31 to rotate during rotation, and the first universal joint 31 can drive the second universal joint 33 to rotate through the second telescopic rod 32; when the second universal joints 33 on the left side and the right side rotate, the second threaded rods 21 and the first bevel gears 24 are respectively driven to rotate, so that the printing materials in the upper charging barrels 17 on the left side and the right side can automatically enter the printing charging barrels 2; when first rotating turret 7 drives second gear 14 and rotates the position that breaks away from toothed belt 29, the printing material in the last feed cylinder 17 of left and right sides can stop transporting in printing feed cylinder 2 this moment, the printing material that has in printing feed cylinder 2 can be by intensive mixing under rabbling mechanism's effect, when second gear 14 rotates the position with toothed belt 29 meshing once more, the printing material in the last feed cylinder 17 of left and right sides can continue to transport in printing feed cylinder 2, thereby can play through intermittent type nature to the printing material of transporting in printing feed cylinder 2, can effectual promotion rabbling mechanism's stirring effect, make the printing material can abundant mixture.
As a further aspect of the present invention, the fourth driving mechanism includes a rotating rod 34 and two second fixing frames 35, the rotating rod 34 is rotatably connected to the upper end surface of the first threaded rod 54, and the two second fixing frames 35 are both fixedly connected to the left and right sides of the upper end of the print cartridge 2; a second sliding rod 36 is slidably connected in the second fixed frame 35, the bottom end of the second sliding rod 36 is rotatably connected with a connecting rod 37, and the bottom end of the connecting rod 37 is rotatably connected with the sliding plate 27; the front side and the rear side of the upper end of the second sliding rod 36 are symmetrically and fixedly connected with fixing rods 38; the upper end of the second fixing frame 35 is symmetrically and fixedly connected with clamping blocks 39 at the front side and the rear side of the fixing rod 38, the clamping blocks 39 are made of elastic metal materials, and the clamping blocks 39 are clamped and matched with the fixing rod 38; the front end and the rear end of the bottom of the second fixing frame 35 are symmetrically and fixedly connected with a baffle 40; the left end and the right end of the rotating rod 34 are symmetrically and fixedly connected with a pressing rod 41, the pressing rod 41 is attached to the upper end of the fixing rod 38, the bottom end of the pressing rod 41 is fixedly connected with a third telescopic rod 42, the bottom end of the third telescopic rod 42 is fixedly connected with a pull rod 43, the bottom end of the pull rod 43 is attached to the upper end of the baffle 40, and the upper end of the pull rod 43 is attached to the bottom end of the fixing rod 38; the surfaces of the front end and the rear end of the fixing plate are symmetrically and fixedly connected with third springs 44, and the other ends of the third springs 44 are fixedly connected with the printing material cylinder 2; in operation, when the first driving mechanism drives the first threaded rod 54 and the first piston plate 3 to move downward to the bottommost position, at this time, the first piston plate 3 will drive the rotating rod 34 to move to the bottommost position, the rotating rod 34 will press the fixing rod 38 downward to the bottommost position through the pressing rod 41, when the fixing rod 38 is at the bottommost position, the fixing rod 38 will be blocked with the blocking block 39 and the fixing rod 38 will drive the second sliding rod 36 to slide downward to the bottommost position, the second sliding rod 36 will drive the sliding plate 27 to slide upward to the inner position of the charging barrel 17 to the innermost position through the connecting rod 37, and when the sliding plate 27 slides to the innermost position, the toothed belt 29 on the surface of the sliding plate 27 is at a position capable of meshing with the second gear 14; when the first threaded rod 54 and the first piston plate 3 move upwards, the rotating rod 34 drives the pressing rod 41 to move upwards, the pressing rod 41 drives the third telescopic rod 42 to stretch upwards while the pressing rod 41 loosens the fixing rod 38, and the fixing rod 38 is clamped by the clamping block 39, so that the toothed belt 29 is kept in a position where the toothed belt is meshed with the second gear 14; when the first threaded rod 54 moves to a position close to the uppermost end, the third telescopic rod 42 is stretched to the maximum length, and when the first threaded rod 54 continues to move upwards, the third telescopic rod 42 drives the pull rod 43 to move upwards; when the first threaded rod 54 moves to the uppermost position, the pull rod 43 is pulled by the third telescopic rod 42 to the position of the upper end of the latch 39, the fixed rod 38 can be pulled upwards to the position of the upper end of the latch 39 through the pull rod 43, and when the fixed rod 38 is separated from the latch 39, the sliding plate 27 is rebounded to the original position under the action of the third spring 44, and the toothed belt 29 moves to the position where the sliding plate 27 cannot be engaged with the second gear 14 along with the sliding plate 27.
As a further scheme of the present invention, the adjusting mechanism includes a second sliding chute 45, a sliding column 46 is slidably connected in the second sliding chute 45, a third threaded rod 47 is rotatably connected in the second sliding chute 45, and the third threaded rod 47 is in threaded fit with the sliding column 46; the surface of the left end of the bottom plate 1 is fixedly connected with a second motor 48, and the output shaft of the second motor 48 is fixedly connected with a third threaded rod 47; a third sliding chute 49 is formed in the sliding column 46, a sliding block 50 is connected in the third sliding chute 49 in a sliding mode, a fourth threaded rod 51 is connected in the third sliding chute 49 in a rotating mode, and the fourth threaded rod 51 is in threaded fit with the sliding block 50; the upper end of the sliding column 46 is fixedly connected with a third motor 52, and the bottom end of an output shaft of the third motor 52 is fixedly connected with a fourth threaded rod 51; the front end of the sliding block 50 is fixedly connected with an air cylinder 53, and the front end of the air cylinder 53 is fixedly connected with the printing material cylinder 2; the third threaded rod 47 and the fourth threaded rod 51 both have self-locking property; during working, when a workpiece is printed, the printing material cylinder 2 needs to be continuously adjusted to different printing positions, the second motor 48 is started to drive the third threaded rod 47 to rotate, and the third threaded rod 47 can drive the sliding column 46 to slide left and right in the second sliding groove 45, so that the left and right positions of the printing material cylinder 2 can be adjusted; when the third motor 52 is started, the fourth threaded rod 51 can be driven to rotate, and when the fourth threaded rod 51 rotates, the sliding block 50 can be driven to slide up and down in the third sliding groove 49, so that the up-down position of the printing material barrel 2 can be adjusted; can directly drive print cartridge 2 back-and-forth movement through starting cylinder 53 to can adjust print cartridge 2's front and back position, can be with print cartridge 2 accurate regulation to the printing position of multiple difference under the effect of second motor 48, third motor 52 and cylinder 53.
Claims (8)
1. A printable metal powder's fused deposition type 3D printing device, includes bottom plate (1), its characterized in that: the upper end of the bottom plate (1) is provided with a printing material cylinder (2) and an adjusting mechanism, and the adjusting mechanism is used for driving the printing material cylinder (2) to continuously move to different printing positions; a first piston plate (3) is arranged in the printing material cylinder (2), and the first piston plate (3) is in sliding fit with the inner wall of the printing material cylinder (2); the upper end of the printing material barrel (2) is provided with a first driving mechanism, and the first driving mechanism is used for driving a first piston plate (3) to slide up and down in the printing material barrel (2) to extrude printing materials in the printing material barrel (2); the surface of the first piston plate (3) is provided with a stirring mechanism, and the stirring mechanism is used for automatically stirring the printing material in the printing material cylinder (2) when the first piston plate (3) slides up and down; the outer side surface of the printing material barrel (2) is provided with a feeding mechanism, and the feeding mechanism is used for automatically conveying printing materials into the printing material barrel (2) when the first piston plate (3) slides upwards at the bottommost position in the printing material barrel (2).
2. A molten deposition type 3D printing device of printable metal powders according to claim 1, characterized in that: the first driving mechanism comprises a first fixing frame (4), the first fixing frame (4) is fixedly connected with the printing material cylinder (2), the surface of the upper end of the first fixing frame (4) is fixedly connected with a first motor (5), and the bottom end of an output shaft of the first motor (5) is fixedly connected with a first gear (6); the bottom end of the first fixing frame (4) is rotatably connected with a first rotating frame (7), the surface of the first rotating frame (7) is fixedly connected with an outer gear ring (8), and the outer gear ring (8) is meshed with the first gear (6); a first threaded rod (54) is arranged in the middle of the inner part of the first rotating frame (7), the first threaded rod (54) is connected with the first rotating frame (7) in a sliding mode, and the first threaded rod (54) is in threaded fit with the first fixing frame (4); the first piston plate (3) is fixedly connected with the bottom end of the first threaded rod (54), and the first threaded rod (54) has self-locking property.
3. A molten deposition type 3D printing device of printable metal powders according to claim 2, characterized in that: the stirring mechanism comprises a first conveyor belt (9), and a plurality of stirring rods (10) are connected to the surface of the first conveyor belt (9) in a sliding manner; a groove (11) which is through up and down is formed in the surface of the first piston plate (3), the first conveyor belt (9) is located in the groove (11), and two rotating shafts in the first conveyor belt (9) are rotatably connected with the first piston plate (3); the upper end surface and the lower end surface of the first conveyor belt (9) are hermetically attached to the inner wall of the groove (11); the upper ends of two rotating shafts in the first conveyor belt (9) are fixedly connected with first telescopic rods (12), and the first telescopic rods (12) are rotatably connected with the first piston plate (3); a second transmission belt (13) is arranged at the bottom end of the first rotating frame (7), two rotating shafts in the second transmission belt (13) are rotatably connected with the first rotating frame (7), and the two rotating shafts in the second transmission belt (13) are fixedly connected with the two first telescopic rods (12) respectively; the upper end of the stirring rod (10) is rotationally connected with a second transmission belt (13); and a second driving mechanism is arranged on the surface of the first rotating frame (7), and is used for driving a second transmission belt (13) to perform reciprocating transmission when the first piston plate (3) slides up and down and starting to drive the feeding mechanism to operate when the first piston plate (3) moves to the bottommost position in the printing material cylinder (2).
4. A molten deposition type 3D printing device of printable metal powders according to claim 3, characterized in that: the second driving mechanism comprises two second gears (14), the two second gears (14) are distributed at the left side and the right side of the first rotating frame (7), and the second gears (14) are rotationally connected with the first rotating frame (7); the two second gears (14) are respectively and fixedly connected with two rotating shafts in the second transmission belt (13); the left side and the right side of the bottom end of the first fixing frame (4) are fixedly connected with first arc-shaped racks (15), the front side and the rear side of the bottom end of the first fixing frame are symmetrically and fixedly connected with second arc-shaped racks (16), and the second gear (14) is alternately meshed with the first arc-shaped racks (15) and the second arc-shaped racks (16); the radius of the second arc-shaped rack (16) is larger than that of the first arc-shaped rack (15), and the number of teeth on the surfaces of the first arc-shaped rack (15) and the second arc-shaped rack (16) is equal.
5. The fused deposition 3D printing device of printable metal powders as claimed in claim 4, wherein: the feeding mechanism comprises two feeding barrels (17), the two feeding barrels (17) are distributed at the left side and the right side of the printing barrel (2), and the two feeding barrels (17) and the feeding barrels (17) at the left side and the right side of the printing barrel (2) are respectively provided with paste liquid and metal powder; the left side and the right side of the upper charging barrel are respectively provided with paste liquid and metal powder; the bottom end parts of the upper charging barrels (17) on the left side and the right side are communicated with the bottom end part of the printing charging barrel (2), sealing plates (18) are connected to the positions of the joints of the interior of the upper charging barrel (17) and the printing charging barrel (2) in a sliding manner, first sliding rods (19) are fixedly connected to the front side and the rear side of the surface of each sealing plate (18), the first sliding rods (19) are connected with the printing charging barrel (2) in a sliding manner, first springs (20) are sleeved on the surfaces of the first sliding rods (19), one ends of the first springs (20) are fixedly connected with the printing charging barrel (2), and the other ends of the first springs (20) are fixedly connected with the first sliding rods (19); a second threaded rod (21) is rotatably connected to the bottom end of the middle part in the upper charging barrel (17) on the left side, a second piston plate (22) is in threaded fit with the surface of the second threaded rod (21), and the second piston plate (22) is in sealing fit with the inner wall of the upper charging barrel (17) on the left side; the second threaded rod (21) has self-locking property; the bottom end of the middle part in the upper charging barrel (17) on the right side is fixedly connected with a protection box (23), the upper side position and the left side position in the protection box (23) are respectively and rotatably connected with a first bevel gear (24) and a second bevel gear (25), and the first bevel gear (24) is meshed with the second bevel gear (25); the packing auger (26) is fixedly connected to the left end of the second bevel gear (25), and the packing auger (26) is rotatably connected with the upper charging barrel (17) on the right side; the left and right sides go up feed cylinder (17) upper end position and be equipped with third actuating mechanism, third actuating mechanism is used for when first piston plate (3) move to the bottommost position, and third actuating mechanism and second actuating mechanism butt joint and when first piston plate (3) moved the topmost position, third actuating mechanism and second actuating mechanism break away from.
6. The fused deposition 3D printing device of printable metal powders as claimed in claim 5, wherein: the third driving mechanism comprises two sliding plates (27), the two sliding plates (27) are distributed at the left side and the right side of the upper part of the printing material barrel (2), and the two sliding plates (27) are both in sliding connection with the printing material barrel (2) and the first fixing frame (4); a first sliding chute (28) is formed in the edge position inside the sliding plate (27), and a toothed belt (29) is connected in the first sliding chute (28) in a sliding manner; the parts, close to each other, of the first sliding grooves (28) on the surfaces of the sliding plates (27) on the left side and the right side are arc-shaped, and the bending degree and the radius of the parts are consistent with those of the second arc-shaped racks (16); the toothed belt (29) is meshed with the second gear (14); the parts, far away from each other, of the inner parts of the sliding plates (27) on the left side and the right side are respectively provided with a roller (30), the rollers (30) are rotatably connected with the sliding plates (27), and the rollers (30) are attached to the surfaces of the toothed belts (29); the bottom end of the roller (30) is fixedly connected with a first universal joint (31), the bottom end of the first universal joint (31) is fixedly connected with a second telescopic rod (32), the bottom end of the second telescopic rod (32) is fixedly connected with a second universal joint (33), the bottom end of the second universal joint (33) on the left side is fixedly connected with a second threaded rod (21), and the bottom end of the second universal joint (33) on the right side is fixedly connected with a first bevel gear (24); the upper end surface of the first threaded rod (54) is provided with a fourth driving mechanism which is used for driving the sliding plates (27) at the left side and the right side to slide to the inner side position to the position where the toothed belt (29) is meshed with the second gear (14) when the first threaded rod (54) moves to the bottommost position, and enabling the sliding plates (27) to reset when the first threaded rod (54) moves to the topmost position.
7. The fused deposition 3D printing device of printable metal powders as claimed in claim 6, wherein: the fourth driving mechanism comprises a rotating rod (34) and two second fixing frames (35), the rotating rod (34) is rotatably connected with the upper end surface of the first threaded rod (54), and the two second fixing frames (35) are fixedly connected with the left side and the right side of the upper end of the printing material cylinder (2); a second sliding rod (36) is connected in the second fixed frame (35) in a sliding manner, the bottom end of the second sliding rod (36) is rotatably connected with a connecting rod (37), and the bottom end of the connecting rod (37) is rotatably connected with the sliding plate (27); the front side and the rear side of the upper end of the second sliding rod (36) are symmetrically and fixedly connected with fixing rods (38); the upper end of the second fixing frame (35) is symmetrically and fixedly connected with clamping blocks (39) at the front side and the rear side of the fixing rod (38), the clamping blocks (39) are made of elastic metal materials, and the clamping blocks (39) are clamped and matched with the fixing rod (38); the front end and the rear end of the bottom of the second fixing frame (35) are symmetrically and fixedly connected with baffle plates (40); the left end and the right end of the rotating rod (34) are symmetrically and fixedly connected with pressing rods (41), the pressing rods (41) are attached to the upper end part of the fixing rod (38), the bottom end of each pressing rod (41) is fixedly connected with a third telescopic rod (42), the bottom end of each third telescopic rod (42) is fixedly connected with a pull rod (43), the bottom end of each pull rod (43) is attached to the upper end part of the baffle (40), and the upper end of each pull rod (43) is attached to the bottom end part of the fixing rod (38); the surface of the front end and the rear end of the fixing plate are symmetrically and fixedly connected with third springs (44), and the other ends of the third springs (44) are fixedly connected with the printing material barrel (2).
8. A molten deposition type 3D printing device of printable metal powders according to claim 1, characterized in that: the adjusting mechanism comprises a second sliding chute (45), a sliding column (46) is connected in the second sliding chute (45) in a sliding mode, a third threaded rod (47) is connected in the second sliding chute (45) in a rotating mode, and the third threaded rod (47) is in threaded fit with the sliding column (46); the surface of the left end of the bottom plate (1) is fixedly connected with a second motor (48), and an output shaft of the second motor (48) is fixedly connected with a third threaded rod (47); a third sliding groove (49) is formed in the sliding column (46), a sliding block (50) is connected in the third sliding groove (49) in a sliding mode, a fourth threaded rod (51) is connected in the third sliding groove (49) in a rotating mode, and the fourth threaded rod (51) is in threaded fit with the sliding block (50); the upper end of the sliding column (46) is fixedly connected with a third motor (52), and the bottom end of an output shaft of the third motor (52) is fixedly connected with a fourth threaded rod (51); the front end of the sliding block (50) is fixedly connected with an air cylinder (53), and the front end of the air cylinder (53) is fixedly connected with the printing material barrel (2); the third threaded rod (47) and the fourth threaded rod (51) are self-locking.
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| CN202210271407.2A CN114619053B (en) | 2022-03-18 | 2022-03-18 | Fused deposition type 3D printing device capable of printing metal powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115431377A (en) * | 2022-08-31 | 2022-12-06 | 上海思飞历保建筑科技有限公司 | Model 3D printing apparatus of ancient building |
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| CN114619053B (en) | 2023-05-16 |
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