CN112706403A - 3D printer discharge mechanism convenient to dismantle and maintain - Google Patents
3D printer discharge mechanism convenient to dismantle and maintain Download PDFInfo
- Publication number
- CN112706403A CN112706403A CN202011455074.6A CN202011455074A CN112706403A CN 112706403 A CN112706403 A CN 112706403A CN 202011455074 A CN202011455074 A CN 202011455074A CN 112706403 A CN112706403 A CN 112706403A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000000429 assembly Methods 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 13
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 description 14
- 238000012423 maintenance Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/295—Heating elements
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- 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
Abstract
The invention belongs to the technical field of 3D printer equipment, and particularly relates to a 3D printer discharging mechanism convenient to disassemble and maintain. Comprises a first nozzle, a heating block, a throat pipe, a radiating pipe and a second nozzle; the throat pipe is of a tubular structure, the first nozzle and the heating block are sleeved at the lower end of the throat pipe, the first nozzle is positioned below the heating block, the second nozzle sequentially penetrates through the radiating pipe, the throat pipe and the heating block, and one end of the second nozzle is flush with one end of the first nozzle; one end of the second nozzle, which is far away from the first nozzle, is communicated with a discharge hole of a feeding mechanism of the printer; the heating block is further provided with two sets of first fixing assemblies and two sets of second fixing assemblies, and the first fixing assemblies and the second fixing assemblies are arranged on the heating block, so that the electrified wire and the temperature sensing wire are prevented from being pulled apart from the welding position when the 3D printer is used for replacing or repairing the nozzle.
Description
Technical Field
The invention belongs to the technical field of 3D printer equipment, and particularly relates to a 3D printer discharging mechanism convenient to disassemble and maintain.
Background
3D printing is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique. It is a method for manufacturing three-dimensional object by printing layers of adhesive material on the basis of digital model file and by using special wax material, powdered metal or plastic and other adhesive material.
The discharging mechanism is one of the most important parts in the 3D printer, and a nozzle of the discharging mechanism is often required to eject heated materials, so that the discharging mechanism is easy to wear and block, and needs to be replaced and repaired frequently. Meanwhile, after the nozzle of the 3D printer is cooled, the raw materials remained in the nozzle are cooled to be solid, and the raw materials are away from the heating block, so that the heating of the raw materials is slow, and the time and the energy are consumed; in addition, in the process of replacement and repair, the electrified wire and the temperature sensing wire which are originally fixed on the heating block are easy to fall off, so that the difficulty of replacement and maintenance is increased, and the maintenance cost is also increased.
Disclosure of Invention
Aiming at the problems, the invention provides a D printer discharging mechanism convenient to disassemble and maintain, which comprises a first nozzle, a heating block, a throat pipe, a radiating pipe and a second nozzle;
the throat pipe is of a tubular structure, the first nozzle and the heating block are sleeved at the lower end of the throat pipe, the first nozzle is positioned below the heating block, the second nozzle sequentially penetrates through the radiating pipe, the throat pipe, the heating block and the first nozzle, and one end of the second nozzle is flush with one end of the first nozzle;
one end of the second nozzle, which is far away from the first nozzle, is communicated with a discharge hole of a feeding mechanism of the printer;
the heating block is also provided with two groups of first fixing assemblies and two groups of second fixing assemblies, and each group of first fixing assemblies comprises a first fixing block, two groups of second fixing blocks and a third fixing block; the two groups of second fixed blocks are fixedly clamped on two sides of the third fixed block respectively; the second fixing block and the third fixing block are fixedly clamped on the plate surface on one side of the first fixing block, and the plate surface on the other side opposite to the first fixing block is fixedly clamped on the heating block;
the second fixing assembly comprises a first connecting plate, two groups of second connecting plates and two groups of fixing knobs; the first connecting plate is attached to the upper surfaces of the second fixing block and the third fixing block; the upper end of the second connecting plate is fixedly arranged at two ends of the first connecting plate, and the fixing knob is rotationally clamped at the lower end of the second connecting plate; and the two groups of fixed knobs are respectively clamped on the two opposite side surfaces of the heating block.
Furthermore, a first blind hole is formed in the center of the upper end face of the first nozzle, internal threads are formed in the inner wall of the first blind hole, and the lower end of the throat pipe is connected with the first blind hole through threads;
a first through hole is formed in the center of the lower end face of the first nozzle and penetrates through the upper end face and the lower end face of the first nozzle, and the first through hole is communicated with the first blind hole;
the inner fixed mounting of the first through hole is provided with a blocking block, the blocking block is a cylinder, the upper end of the blocking block is provided with a cavity which is the same as the discharge end of the second nozzle, and the lower end face of the blocking block is flush with the lower end face of the first nozzle.
Furthermore, a second through hole is formed in the first side face of the heating block, and the second through hole penetrates through the first side face and the side face opposite to the first side face;
the inner wall of the second through hole is provided with internal threads, and the lower end of the throat pipe is connected with the second through hole through threads.
Furthermore, a fixing groove is formed in the second side face of the heating block;
the fixing groove comprises a first sliding groove and a second sliding groove;
the first sliding groove is formed in the second side face and penetrates through the third side face; the second sliding groove is formed in the groove bottom of the first sliding groove, and the width of the groove bottom of the second sliding groove is smaller than that of the first sliding groove; and a third blind hole is formed in the second side face and is communicated with one ends, far away from the third side face, of the first sliding groove and the second sliding groove.
Furthermore, a first clamping hole is formed in the first fixing block, the first clamping hole penetrates through two opposite side faces of the first fixing block, a fourth blind hole is formed in one side face, and a first clamping column is fixedly mounted on the other side face; a third side surface of the heating block is provided with a power-on wire hole and a temperature sensing wire hole; a plurality of groups of second blind holes are also arranged around the power-on wire hole and the temperature sensing wire hole;
the first clamping column is fixedly clamped in the second blind hole.
Further, a second clamping column is fixedly mounted on one side face of the second fixing block;
the second clamping column can be fixedly clamped in the fourth blind hole; a first clamping block is fixedly arranged on one side surface of two adjacent opposite side surfaces of the second clamping column, and a third through hole is formed in the other side surface of the second clamping column;
the edges of the opposite side surfaces of the second clamping columns are provided with second clamping holes, and the second clamping holes are in the shape of semi-cylinders; the third through hole is communicated with the side wall of the second clamping hole;
the first fixture block is provided with a fifth blind hole, a fixed button is movably clamped in the fifth blind hole through a first spring, the upper end face of the fixed button is an inclined plane, and an included angle formed by the upper end face of the fixed button and the upper surface of the first fixture block is an acute angle.
Furthermore, an extrusion assembly is screwed in the third through hole and comprises a threaded column, an arc-shaped fixture block and a connecting column;
the threaded column is in threaded connection with the third through hole, one end of the threaded column is rotatably connected with the arc-shaped clamping block, the arc-shaped clamping block is located in the second clamping hole, the connecting column is fixedly installed on an outer arc of the arc-shaped clamping block, and the connecting column is movably inserted into the second fixing block.
Furthermore, four groups of button holes, four groups of first clamping grooves and two groups of third clamping holes are formed in the third fixing block;
the button holes are formed in the fourth side face of the third fixing block, and the positions of the button holes correspond to the positions of the fixing buttons one by one; the fixed button is clamped in the button hole;
the first clamping grooves are formed in the fifth side face of the third fixing block, the positions of the first clamping grooves correspond to the positions of the first clamping blocks one by one, and the first clamping blocks can be clamped in the first clamping grooves; the first clamping groove is communicated with the button hole;
two groups of symmetrical third clamping connection holes are formed in the fourth side face, and the third clamping connection holes are semi-cylindrical; the inner wall of the third clamping hole is also fixedly provided with an arc-shaped plate.
Furthermore, the second fixing component comprises a first connecting plate, two groups of second connecting plates and two groups of fixing knobs;
the upper end of the second connecting plate is fixedly arranged at the two ends of the first connecting plate, and the fixing knob is rotationally clamped at the lower end of the second connecting plate;
the fixing knob is cylindrical, second clamping blocks are arranged at two ends of the fixing knob, and the second clamping blocks can be clamped in the second sliding grooves; the fixed knob can be clamped in the first sliding groove.
Further, the second nozzle comprises a pipe body, a second nozzle head and a discharge hole;
the tube body is of a hollow structure, and a Teflon tube is arranged in the tube body; one end of the pipe body is fixedly connected with one end of the feeding mechanism; the second nozzle head is positioned at the other end of the pipe body, and the second nozzle head is clamped in the blocking block; the discharge port is arranged on the second nozzle head and communicated with the pipe body.
The invention has the beneficial effects that:
1. through set up the second nozzle in the choke for when heating the piece during operation, make the second nozzle head in the during operation joint blocks the piece, the raw materials output of being convenient for, when heating the piece stop work, make the second nozzle head be located the heating piece, so that when the work is opened next time, can the fastest melting raw materials, output, reduce time and energy consumption.
2. Through setting up the second nozzle, avoided first nozzle to arouse the condition of jam because residual raw materials solidification, reduced the frequent change to first nozzle, practiced thrift the cost, reduced the maintenance number of times.
3. Through set up the fixed subassembly of first fixed subassembly and second on the heating block for electrified line and temperature sensing line have been avoided electrified line and temperature sensing line to be torn apart from the welding department when the nozzle is changed or repaired to the 3D printer.
4. Through fixing first connecting plate on the fourth side, second draw-in groove joint is at the upper end of fixed button, and is more stable when making first mounting fix on the heating piece.
5. When the second fixture block is located in the third blind hole, the second fixture block is rotated by 180 degrees, so that the second fixture block is perpendicular to the second sliding groove, and the fixing knob can be fixed in the third blind hole.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 shows a schematic cross-sectional view of a discharge mechanism of an embodiment of the invention;
FIG. 2 shows a schematic structural view of a discharge mechanism of an embodiment of the present invention;
FIG. 3 shows a schematic structural view of a first nozzle of an embodiment of the present invention;
FIG. 4 is a schematic structural view of a heating block and first and second fixing assemblies according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heating block according to an embodiment of the present invention;
FIG. 6 illustrates a schematic structural view of a first securing assembly of an embodiment of the present invention;
fig. 7 is a schematic structural diagram illustrating a first fixing block according to an embodiment of the present invention;
fig. 8 is a schematic structural view illustrating a second fixing block according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a second fixing block at A-A according to an embodiment of the present invention;
fig. 10 is a schematic structural view illustrating a third fixing block according to an embodiment of the present invention;
FIG. 11 shows a schematic structural view of a second securing assembly of an embodiment of the invention;
fig. 12 is a schematic structural view showing a second nozzle according to an embodiment of the present invention.
In the figure: 1. a first nozzle; 11. a first blind hole; 12. a first through hole; 13. a blocking block; 2. a heating block; 21. a second through hole; 22. a power-on wire hole; 23. a temperature sensing wire hole; 24. a second blind hole; 25. Fixing grooves; 251. a first chute; 252. a second chute; 253. a third blind hole; 26. a first side surface; 27. a second side surface; 28. a third side; 3. a throat; 4. a radiating pipe; 5. a second nozzle; 51. A tube body; 52. a second nozzle head; 53. a discharge port; 6. a first fixed component; 61. a first fixed block; 611. a first clamp post; 612. a first clamping hole; 613. a fourth blind hole; 62. a second fixed block; 621. a second clamp post; 622. a first clamping block; 6221. a fifth blind hole; 6222. a first spring; 623. a second clamping hole; 624. a fixed button; 625. an extrusion assembly; 6251. a threaded post; 6252. an arc-shaped fixture block; 6253. connecting columns; 626. a third through hole; 63. a third fixed block; 631. A fourth side; 632. a fifth side surface; 633. a button hole; 634. a first card slot; 635. a third bayonet hole; 636. an arc-shaped plate; 7. a second fixed component; 71. a first connecting plate; 711. a second card slot; 72. a second connecting plate; 73. fixing the knob; 731. and a second clamping block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The discharging mechanism of the 3D printer, provided by the embodiment of the invention, is convenient to disassemble and maintain, and comprises a first nozzle 1, a heating block 2, a throat pipe 3, a radiating pipe 4 and a second nozzle 5, as shown in fig. 1 and 2 for example.
The utility model discloses a heating device, including throat 3, cooling tube 4, first nozzle 5, heating block 2, second nozzle 5, throat 3 is the tubular structure, cooling tube 4 cup joints the upper end of throat 3, first nozzle 1 with heating block 2 cup joints the lower extreme of throat 3, just first nozzle 1 is located heating block 2's below, second nozzle 5 runs through in proper order the cooling tube 4 throat 3, heating block 2 and first nozzle 1, just the one end of second nozzle 5 is held the parallel and level with first nozzle 1.
One end of the second nozzle 5, which is far away from the first nozzle 1, is communicated with a discharge port of a feeding mechanism of the printer, and the feeding mechanism conveys raw materials into the second nozzle 5. The heating block 2 heats the throat 3 to melt the raw material in the second nozzle 5, and the melted raw material is ejected through the first nozzle 1.
The cooling tube 4 is used for doing the second nozzle 5 dispels the heat in time, prevents in the second nozzle 5 lie in the 2 molten raw materials of heating block and take place the refluence, cause the feed end of second nozzle 5 blocks up.
A first blind hole 11 is formed in the center of the upper end surface of the first nozzle 1, as shown in fig. 3. The inner wall of the first blind hole 11 is provided with internal threads for being in threaded connection with the lower end of the throat pipe 3;
a first through hole 12 is formed in the center of the lower end face of the first nozzle 1; the first through hole 12 communicates with the first blind hole 11.
A blocking block 13 is fixedly installed in the first through hole 12, the blocking block 13 is a cylinder, and a cavity which is the same as the discharge end of the second nozzle 5 is formed in the upper end of the blocking block 13 and is used for blocking the second nozzle 5 from falling off from the first nozzle 1; the lower end face of the stop block 13 is flush with the lower end face of the first nozzle 1.
The heating block 2 is fixedly clamped with a first fixing component 6 and a second fixing component 7, as shown in fig. 4 and 5 for example.
A second through hole 21 is formed in the first side surface 26 of the heating block 2, and the second through hole 21 penetrates through the first side surface 26 and the side surface opposite to the first side surface 26.
The inner wall of the second through hole 21 is provided with internal threads for being in threaded connection with the lower end of the throat pipe 3;
a third side surface 28 of the heating block 2 is provided with a power line hole 22 and a temperature sensing line hole 23; the electrified wire hole 22 is used for installing a connector of an electrified wire, the temperature sensing wire hole 23 is used for installing a connector of a temperature sensing wire, and the electrified wire and the temperature sensing wire are respectively welded with the connectors; a plurality of groups of second blind holes 24 are further arranged around the power-on wire hole 22 and the temperature sensing wire hole 23.
A second side surface 27 of the heating block 2 is provided with a fixing groove 25; the fixing groove 25 includes a first sliding groove 251 and a second sliding groove 252, the first sliding groove 251 is opened on the second side 27 and penetrates through the third side 28; the second sliding chute 252 is arranged at the bottom of the first sliding chute 251, and the width of the bottom of the second sliding chute 252 is smaller than that of the first sliding chute 251; the second side surface 27 is further provided with a third blind hole 253, and the third blind hole 253 is communicated with one ends of the first slide groove 251 and the second slide groove 252 far away from the third side surface 28.
Two sets of first fixing assemblies 6 are fixedly clamped on the third side surface 28, and each set of first fixing assemblies 6 comprises a first fixing block 61, a second fixing block 62 and a third fixing block 63, as shown in fig. 6 for example.
The second fixing block 62 and the third fixing block 63 are fixedly clamped on one side plate surface of the first fixing block 61, and the other side plate surface, opposite to the first fixing block 61, is fixedly clamped on the third side surface 28.
A first clamping hole 612 is formed in the first fixing block 61, the first clamping hole 612 penetrates through two opposite side surfaces of the first fixing block 61, a fourth blind hole 613 is formed in one side surface, and a first clamping column 611 is fixedly mounted on the other side surface, as shown in fig. 7 for example.
The first clamping column 611 can be fixedly clamped in the second blind hole 24. The first clamping hole 612 is used for fixedly clamping and connecting the power line connector and the temperature sensing line connector;
a second clamping column 621 is fixedly installed on one side surface of the second fixing block 62, as shown in fig. 8 and 9 for example.
The second clamping column 621 can be fixedly clamped in the fourth blind hole 613; one of two adjacent opposite side surfaces of the second clamping column 621 is fixedly provided with a first clamping block 622, and the other side surface is provided with a third through hole 626; a second clamping hole 623 is formed in the edge of the side surface opposite to the second clamping column 621, and the second clamping hole 623 is in a semi-cylinder shape; the third through hole 626 communicates with a side wall of the second engaging hole 623.
A fifth blind hole 6221 is formed in the first fixture block 622, a fixing button 624 is movably clamped in the fifth blind hole 6221 through a first spring 6222, the upper end surface of the fixing button 624 is a slant surface, and an included angle formed between the upper end surface of the fixing button 624 and the upper surface of the first fixture block 622 is an acute angle.
An extrusion component 625 is screwed in the third through hole 626, the extrusion component 625 comprises a threaded column 6251, an arc-shaped fixture block 6252 and a connecting column 6253, the threaded column 6251 is screwed in the third through hole 626, one end of the threaded column 6251 is rotatably connected with the arc-shaped fixture block 6252, the arc-shaped fixture block 6252 is positioned in the second clamping hole 623, the connecting column 6253 is fixedly installed on the outer side arc of the arc-shaped fixture block 6252, and the connecting column 6253 is movably inserted in the second fixing block 62.
The third fixing block 63 is provided with four sets of button holes 633, four sets of first locking grooves 634, and two sets of third locking holes 635, as shown in fig. 10.
The button holes 633 are arranged on the fourth side 631 of the third fixed block 63, and the positions of the button holes 633 correspond to the positions of the fixed buttons 624 one by one; the button hole 633 is used for clamping the fixing button 624.
The first engaging groove 634 is disposed on the fifth lateral surface 632 of the third fixing block 63, the positions of the first engaging groove 634 and the positions of the first engaging blocks 622 are in one-to-one correspondence, and the first engaging blocks 622 can be engaged with the first engaging groove 634; the first locking groove 634 is communicated with the button hole 633.
Two groups of symmetrical third clamping connection holes 635 are formed in the fourth side surface 631, and the third clamping connection holes 635 are semi-cylindrical; the third clamping hole 635 and the second clamping hole 623 are combined and used for clamping a power line or a temperature sensing line; the inner wall of the third clamping hole 635 is further fixedly provided with an arc-shaped plate 636, and the arc-shaped plate 636 is used for further fixing the third clamping hole 635 and a power-on line or a temperature sensing line. The arc-shaped clamping block 6252 is matched with the third clamping hole 635 to fix the power line or the temperature sensing line by screwing the pressing component 625.
Exemplarily, when the electrifying wire or the temperature sensing wire is pulled, the connector part of the electrifying wire or the temperature sensing wire is fixed through the first clamping hole 612, and the electrifying wire and the temperature sensing wire body are fixed through the second clamping hole 623 and the third clamping hole 635, so that the stressed part of the electrifying wire and the temperature sensing wire is transferred to the body of the electrifying wire or the temperature sensing wire from the part welded on the connector, the welding strength of the electrifying wire or the temperature sensing wire is increased in a phase-changing manner, the electrifying wire and the temperature sensing wire are not easy to fall off when a nozzle is replaced or repaired, and the difficulty in maintenance is reduced.
The heating block 2 is further provided with a second fixing assembly 7, and the second fixing assembly 7 includes a first connecting plate 71, two sets of second connecting plates 72 and two sets of fixing knobs 73, as shown in fig. 11 for example.
The first connecting plate 71 is attached to the upper surfaces of the second fixing block 62 and the third fixing block 63; a second clamping groove 711 is formed in the first connecting plate 71, and the second clamping groove 711 is used for clamping the upper end of the fixing button 624; the upper end of the second connecting plate 72 is fixedly arranged at two ends of the first connecting plate 71, and the fixing knob 73 is rotatably clamped at the lower end of the second connecting plate 72; the fixing knob 73 is cylindrical, second clamping blocks 731 are arranged at two ends of the fixing knob 73, and the second clamping blocks 731 can be clamped in the second sliding grooves 252; the fixing knob 73 can be clamped in the first sliding groove 251; when the second fixture 731 is located in the third blind hole 253, the second fixture 731 is rotated 180 degrees, so that the second fixture 731 is perpendicular to the second sliding groove 252, and the fixing knob 73 can be fixed in the third blind hole 253, that is, the second fixing assembly 7 can fix the first fixing assembly 6 on the third side surface 28 of the heating block 2.
The second nozzle 5 includes a pipe body 51, a second nozzle head 52, and a discharge port 53, as shown in fig. 12 for example.
The pipe body 51 is of a hollow structure, and a Teflon pipe is arranged in the pipe body; one end of the pipe body 51 is fixedly connected with one end of the feeding mechanism, and raw materials enter from one end of the pipe body 51 connected with the feeding mechanism; the second nozzle head 52 is positioned at the other end of the pipe body 51, and the second nozzle head 52 can be clamped in the blocking block 13; the discharge port 53 is provided in the second nozzle head 52, and the discharge port 53 communicates with the pipe body 51.
The 3D printer discharging mechanism convenient to disassemble and maintain provided by the invention has the following convenient disassembling and maintaining principle:
the second nozzle 5 is arranged in the throat pipe 3 and can movably penetrate through the throat pipe 3 and the heating block 2, so that when the second nozzle 5 operates in the forward rotation mode of a motor of the feeding mechanism, the second nozzle head 52 of the second nozzle 5 is clamped in the blocking block 13, and the heated raw materials are output from the discharge hole; after the heating block 2 stops heating, the motor of the feeding mechanism rotates reversely until the second nozzle head 52 is lifted to the heating block 2, so that the raw material solidified in the second nozzle head 52 can be melted and output most quickly when the next work is started, and the consumption of time and energy is reduced. Meanwhile, the condition that the first nozzle 1 is blocked due to the solidification of residual raw materials can be avoided, the frequent replacement of the first nozzle 1 is reduced, the cost is saved, and the maintenance frequency is reduced.
Through setting up first mounting, with the fixed joint of connector part of circular telegram line or temperature sensing line in first joint hole 612, with the fixed joint of the body of circular telegram line or temperature sensing line in second joint hole 623 and third joint hole 635, through adjusting the screw depth of screw post 6251 in third through-hole 626 for the further body of fixed circular telegram line or temperature sensing line of arc fixture block 6252. Then the connector parts of the electrifying wire and the temperature sensing wire fixed by the first fixing piece are respectively inserted into the electrifying wire hole 22 and the temperature sensing wire hole 23, and then the first fixing component 6 is fixed on the third side surface 28 through the second fixing component 7, so that the electrifying wire and the temperature sensing wire are in a normal working state.
When the printer nozzle needs to be disassembled for maintenance, the two sets of fixing knobs 73 are rotated first to move the second latch 731 along one end of the second sliding slot 252 to the other end of the second sliding slot 252, so that the first connecting plate 71 is away from the fourth side 631, and the second connecting plate 72 is rotated to completely separate the first fixing element 6 from the second fixing element 7. Then the first clamping column 611 of the second fixing piece is pulled out from the second blind hole 24, so that the electrified wire and the temperature sensing wire are separated from the heating block 2, and the electrified wire and the temperature sensing wire are prevented from being torn off from the welding position.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a 3D printer discharge mechanism convenient to dismantle and maintain which characterized in that: the discharging mechanism comprises a first nozzle (1), a heating block (2), a throat pipe (3), a radiating pipe (4) and a second nozzle (5);
the throat pipe (3) is of a tubular structure, the first nozzle (1) and the heating block (2) are sleeved at the lower end of the throat pipe (3), the first nozzle (1) is located below the heating block (2), the second nozzle (5) sequentially penetrates through the radiating pipe (4), the throat pipe (3), the heating block (2) and the first nozzle (1), and one end of the second nozzle (5) is flush with one end of the first nozzle (1);
one end of the second nozzle (5) far away from the first nozzle (1) is communicated with a discharge hole of a feeding mechanism of the printer;
the heating block (2) is also provided with two groups of first fixing assemblies (6) and two groups of second fixing assemblies (7), and each group of first fixing assemblies (6) comprises a first fixing block (61), two groups of second fixing blocks (62) and a third fixing block (63); the two groups of second fixing blocks (62) are fixedly clamped on two sides of the third fixing block (63) respectively; the second fixing block (62) and the third fixing block (63) are fixedly clamped on one side plate surface of the first fixing block (61), and the other side plate surface opposite to the first fixing block (61) is fixedly clamped on the heating block (2);
the second fixing component (7) comprises a first connecting plate (71), two groups of second connecting plates (72) and two groups of fixing knobs (73); the first connecting plate (71) is attached to the upper surfaces of the second fixing block (62) and the third fixing block (63); the upper end of the second connecting plate (72) is fixedly arranged at the two ends of the first connecting plate (71), and the fixing knob (73) is rotatably clamped at the lower end of the second connecting plate (72); the two groups of fixed knobs (73) are respectively clamped on two opposite side surfaces of the heating block (2).
2. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 1, wherein: a first blind hole (11) is formed in the center of the upper end face of the first nozzle (1), internal threads are formed in the inner wall of the first blind hole (11), and the lower end of the throat pipe (3) is connected with the first blind hole (11) through threads;
a first through hole (12) is further formed in the center of the lower end face of the first nozzle (1), the first through hole (12) penetrates through the upper end face and the lower end face of the first nozzle (1), and the first through hole (12) is communicated with the first blind hole (11);
fixed mounting has the stopper (13) in first through-hole (12), stopper (13) are the cylinder, the upper end of stopper (13) seted up with the same die cavity of the discharge end of second nozzle (5), the lower terminal surface of stopper (13) with the lower terminal surface parallel and level of first nozzle (1).
3. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 1, wherein: a second through hole (21) is formed in the first side surface (26) of the heating block (2), and the second through hole (21) penetrates through the first side surface (26) and the side surface opposite to the first side surface (26);
the inner wall of the second through hole (21) is provided with internal threads, and the lower end of the throat pipe (3) is in threaded connection with the second through hole (21).
4. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 3, wherein: a second side surface (27) of the heating block (2) is provided with a fixing groove (25);
the fixing groove (25) comprises a first sliding groove (251) and a second sliding groove (252);
the first sliding groove (251) is arranged on the second side surface (27) and penetrates through the third side surface (28); the second sliding chute (252) is arranged at the bottom of the first sliding chute (251), and the width of the bottom of the second sliding chute (252) is smaller than that of the first sliding chute (251); the second side surface (27) is further provided with a third blind hole (253), and the third blind hole (253) is communicated with one ends, far away from the third side surface (28), of the first sliding groove (251) and the second sliding groove (252).
5. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 4, wherein: a first clamping hole (612) is formed in the first fixing block (61), the first clamping hole (612) penetrates through two opposite side faces of the first fixing block (61), a fourth blind hole (613) is formed in one side face, and a first clamping column (611) is fixedly mounted on the other side face; a third side surface (28) of the heating block (2) is provided with a power-on wire hole (22) and a temperature sensing wire hole (23); a plurality of groups of second blind holes (24) are also arranged around the power-on wire hole (22) and the temperature sensing wire hole (23);
the first clamping column (611) is fixedly clamped in the second blind hole (24).
6. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 5, wherein: a second clamping column (621) is fixedly arranged on one side surface of the second fixing block (62);
the second clamping column (621) can be fixedly clamped in the fourth blind hole (613); one side surface of two adjacent opposite side surfaces of the second clamping column (621) is fixedly provided with a first clamping block (622), and the other side surface is provided with a third through hole (626);
a second clamping hole (623) is formed in the edge of the side face, opposite to the second clamping column (621), and the second clamping hole (623) is in a semi-cylinder shape; the third through hole (626) is communicated with the side wall of the second clamping hole (623);
the first clamping block (622) is provided with a fifth blind hole (6221), a fixed button (624) is movably clamped in the fifth blind hole (6221) through a first spring (6222), the upper end face of the fixed button (624) is an inclined plane, and an included angle formed by the upper end face of the fixed button (624) and the upper surface of the first clamping block (622) is an acute angle.
7. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 6, wherein: a squeezing component (625) is screwed in the third through hole (626), and the squeezing component (625) comprises a threaded column (6251), an arc-shaped fixture block (6252) and a connecting column (6253);
the threaded column (6251) is screwed in the third through hole (626), one end of the threaded column (6251) is rotatably connected with the arc-shaped clamping block (6252), the arc-shaped clamping block (6252) is located in the second clamping hole (623), the connecting column (6253) is fixedly installed on an outer side arc of the arc-shaped clamping block (6252), and the connecting column (6253) is movably inserted into the second fixing block (62).
8. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 1 or 6, wherein: four groups of button holes (633), four groups of first clamping grooves (634) and two groups of third clamping holes (635) are formed in the third fixing block (63);
the button holes (633) are arranged on a fourth side surface (631) of the third fixed block (63), and the positions of the button holes (633) correspond to the positions of the fixed buttons (624) one by one; the fixed button (624) is clamped in the button hole (633);
the first clamping groove (634) is formed in a fifth side surface (632) of the third fixing block (63), the positions of the first clamping groove (634) correspond to the positions of the first clamping blocks (622) in a one-to-one mode, and the first clamping blocks (622) can be clamped in the first clamping groove (634); the first clamping groove (634) is communicated with the button hole (633);
two groups of symmetrical third clamping connection holes (635) are formed in the fourth side surface (631), and the third clamping connection holes (635) are semi-cylindrical; the inner wall of the third clamping hole (635) is also fixedly provided with an arc-shaped plate (636).
9. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 4, wherein: the second fixing assembly comprises a first connecting plate (71), two groups of second connecting plates (72) and two groups of fixing knobs (73);
the upper end of the second connecting plate (72) is fixedly arranged at the two ends of the first connecting plate (71), and the fixing knob (73) is rotatably clamped at the lower end of the second connecting plate (72);
the fixing knob (73) is cylindrical, second clamping blocks (731) are arranged at two ends of the fixing knob (73), and the second clamping blocks (731) can be clamped in the second sliding grooves (252); the fixing knob (73) can be clamped in the first sliding groove (251).
10. The 3D printer discharging mechanism convenient to disassemble and maintain as claimed in claim 1 or 2, wherein: the second nozzle (5) comprises a pipe body (51), a second nozzle head (52) and a discharge hole (53);
the tube body (51) is of a hollow structure, and a Teflon tube is arranged in the tube body; one end of the pipe body (51) is fixedly connected with one end of the feeding mechanism; the second nozzle head (52) is positioned at the other end of the pipe body (51), and the second nozzle head (52) is clamped in the blocking block (13); the discharge port (53) is arranged on the second nozzle head (52), and the discharge port (53) is communicated with the pipe body (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455074.6A CN112706403B (en) | 2020-12-10 | 2020-12-10 | 3D printer discharge mechanism convenient to dismantle and maintain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011455074.6A CN112706403B (en) | 2020-12-10 | 2020-12-10 | 3D printer discharge mechanism convenient to dismantle and maintain |
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| Publication Number | Publication Date |
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| CN112706403A true CN112706403A (en) | 2021-04-27 |
| CN112706403B CN112706403B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011455074.6A Active CN112706403B (en) | 2020-12-10 | 2020-12-10 | 3D printer discharge mechanism convenient to dismantle and maintain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787712A (en) * | 2021-11-01 | 2021-12-14 | 辽宁工程技术大学 | Split type FDM type 3D printer nozzle system |
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| CN205219760U (en) * | 2015-12-17 | 2016-05-11 | 北京清软海芯科技有限公司 | Print shower nozzle and have 3D printer of this shower nozzle |
| CN106515008A (en) * | 2016-12-22 | 2017-03-22 | 广州紫苑智能科技有限公司 | Three-dimensional printing head and three-dimensional printing machine provided with same |
| US10124599B1 (en) * | 2017-05-09 | 2018-11-13 | Xyzprinting, Inc. | Print head with quick release mechanism |
| CN110978511A (en) * | 2019-12-23 | 2020-04-10 | 芜湖市爱三迪电子科技有限公司 | Line footpath controlling means of 3D printing consumables |
| US20200215750A1 (en) * | 2019-01-08 | 2020-07-09 | Shanghai Fusion Tech Co., Ltd. | Throat structures for 3d printers, and nozzle apparatus and 3d printers having throat structures |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205219760U (en) * | 2015-12-17 | 2016-05-11 | 北京清软海芯科技有限公司 | Print shower nozzle and have 3D printer of this shower nozzle |
| CN106515008A (en) * | 2016-12-22 | 2017-03-22 | 广州紫苑智能科技有限公司 | Three-dimensional printing head and three-dimensional printing machine provided with same |
| US10124599B1 (en) * | 2017-05-09 | 2018-11-13 | Xyzprinting, Inc. | Print head with quick release mechanism |
| US20200215750A1 (en) * | 2019-01-08 | 2020-07-09 | Shanghai Fusion Tech Co., Ltd. | Throat structures for 3d printers, and nozzle apparatus and 3d printers having throat structures |
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| CN113787712A (en) * | 2021-11-01 | 2021-12-14 | 辽宁工程技术大学 | Split type FDM type 3D printer nozzle system |
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| Publication number | Publication date |
|---|---|
| CN112706403B (en) | 2024-04-05 |
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