阅读说明：本技术 一种用于3d打印喷头的散热及调节位置的装置 (Heat dissipation and position adjusting device for 3D printing nozzle ) 是由 陈林 薛有勤 叶志俊 于 2020-12-15 设计创作，主要内容包括：本发明公开了一种用于3D打印喷头的散热及调节位置的装置,包括U型板,所述U型板板壁两侧均开设有穿槽,所述穿槽内滑动贯穿放置板,所述放置板靠近两侧的顶部均开设有第一螺纹孔,所述U型板板外壁两侧均固定设有固定板,所述固定板上均开设有第二螺纹孔,所述第一螺纹孔内均滑动贯穿第一螺纹杆。有益效果：将3D打印喷腔下降至合适的高度,方便将喷头从圆形空腔内扭取下来,从而方便对喷头进行清洗,通过转动电机带动转杆进行转动,从而带动Z型杆进行转动,Z型杆在转动的过程中,带动十字杆在圆杆上的圆形槽做前后运动,从而带动风机上的风管做前后运动,因此风管可以有效的对3D打印喷头壳体内进行散热,且也可以对喷头进行散热。(The invention discloses a device for heat dissipation and position adjustment of a 3D printing nozzle, which comprises a U-shaped plate, wherein through grooves are formed in two sides of the wall of the U-shaped plate, a placing plate is slidably penetrated through the through grooves, first threaded holes are formed in the top, close to the two sides, of the placing plate, fixing plates are fixedly arranged on two sides of the outer wall of the U-shaped plate, second threaded holes are formed in the fixing plates, and first threaded rods are slidably penetrated through the first threaded holes. Has the advantages that: print the chamber with 3D and descend to suitable height, the convenience is turned round the shower nozzle in following circular cavity and is taken off, thereby the convenience is washd the shower nozzle, it rotates to drive the bull stick through rotating the motor, thereby it rotates to drive Z type pole, Z type pole is at the pivoted in-process, it is the seesaw to drive the circular recess of cross pole on the round bar, thereby it is the seesaw to drive the tuber pipe on the fan, consequently the tuber pipe can be effectual prints the shower nozzle casing to 3D and dispel the heat, and also can dispel the heat to the shower nozzle.)

1. A device for heat dissipation and position adjustment of a 3D printing nozzle is characterized by comprising a U-shaped plate (1), through grooves (2) are formed in two sides of the wall of the U-shaped plate (1), a placing plate (3) penetrates through the through grooves (2) in a sliding manner, first threaded holes (4) are formed in the top, close to the two sides, of the placing plate (3), fixing plates (5) are fixedly arranged on two sides of the outer wall of the U-shaped plate (1), second threaded holes (6) are formed in the fixing plates (5), first threaded rods (7) penetrate through the first threaded holes (4) in a sliding manner, the first threaded rods (7) penetrate through the corresponding first threaded holes (4) and the second threaded holes (6) in a sliding manner, a feeding cylinder (8) is fixedly arranged at the central position of the top end of the placing plate (3), a piston rod (9) is arranged at the output end of the feeding cylinder (8), the top end of the placing plate (3) is positioned at the center and is provided with a first round hole (10), the piston rod (9) penetrates through the first round hole (10), the bottom end of the piston rod (9) is positioned under the placing plate (3), the bottom end of the placing plate (3) is fixedly provided with a 3D printing sprayer shell (11), a 3D printing sprayer cavity (12) is arranged in the 3D printing sprayer shell (11), the bottom of the piston rod (9) is positioned in the 3D printing sprayer cavity (12), the bottom end of the piston rod (9) is fixedly provided with an extrusion disc (13), the extrusion disc (13) is positioned in the 3D printing sprayer cavity (12), the top end of the U-shaped plate (1) is fixedly provided with a material storage groove (14), one side of the outer wall of the material storage groove (14) is provided with a feeding pipe (15), and the 3D printing sprayer cavity (12) is provided with a material receiving pipe (, the material receiving end of the material receiving pipe (16) penetrates through the material receiving end of the 3D printing sprayer shell (11) and is arranged outside the 3D printing sprayer shell (11), the output end of the feeding pipe (15) is communicated with the material receiving end of the material receiving pipe (16) through a pipeline connector (17), a circular cavity (47) is fixedly arranged at the bottom end of the 3D printing spraying cavity (12), an internal thread (48) is arranged in the circular cavity (47), a spraying head (49) is arranged in the circular cavity (47) in a sliding mode, an external thread (50) is arranged at the top of the spraying head (49), the top of the spraying head (49) is arranged in the circular cavity (47) in a sliding mode through the external thread (50) and the internal thread (48), a fourth round hole (31) is formed in the bottom end of the 3D printing sprayer shell (11), the spraying head (49) penetrates through the fourth round hole (31), and the spraying head end of the spraying head (49) is located outside the bottom end of the, the automatic printing device is characterized in that a rotating motor (18) is fixedly arranged on one side of the inner wall of the U-shaped plate (1), a rotating rod (19) is arranged at the output end of the rotating motor (18), a second round hole (20) is formed in one side of the 3D printing nozzle shell (11), the other end of the rotating rod (19) penetrates through the second round hole (20), two fixing rods (21) are fixedly arranged on one side of the inner wall of the 3D printing nozzle shell (11), the second round hole (20) is located in the center of the two fixing rods (21), a rotating disc (22) is fixedly arranged at the other end of the two fixing rods (21), the other end of the rotating rod (19) is fixedly connected with a Z-shaped rod (23), the rotating disc (22) is located in the center and is provided with a third round hole (24), the top of the Z-shaped rod (23) movably penetrates through the third round hole (24), two groups of round rods (25) are fixedly arranged on the, circular slot (26) have all been seted up on quantity is two sets of round bar (25), and quantity is equipped with cross bar (27) between two sets of round bar (25), cross bar (27) lateral wall slides and sets up in corresponding circular slot (26), erect groove (28) have been seted up on cross bar (27), slide bottom Z type pole (23) and run through erect groove (28), Z type pole (23) are kept away from the both sides of cross bar (27) are all fixed and are equipped with fan (29), fan (29) output all is equipped with tuber pipe (30), tuber pipe (30) other end all runs through cross bar (27).

2. The device for dissipating heat and adjusting position of a 3D printing nozzle according to claim 1, wherein the 3D printing nozzle cavity (12) is a circular printing nozzle cavity.

3. The device for dissipating heat and adjusting position of a 3D printing head according to claim 1, wherein each set of round bars (25) is two in number.

4. The device for dissipating heat and adjusting the position of a 3D printing nozzle according to claim 1, wherein a matching cover (32) is arranged at the top end of the storage tank (14), a handle (33) is fixedly arranged at the top end of the cover (32), and anti-skid threads are arranged on the handle (33).

5. The device for dissipating heat and adjusting the position of a 3D printing nozzle according to claim 1, wherein a working plate (34) is fixedly arranged between the groove walls of the U-shaped plate (1), a sliding groove (35) is formed in the working plate (34), a sliding rod (36) is arranged in the sliding groove (35), a moving table (37) is arranged at the top end of the sliding rod (36), two T-shaped grooves (38) are formed in the bottom of the moving table (37), T-shaped plates (39) are slidably arranged in the T-shaped grooves (38), and inserting rods (40) are fixedly arranged at the bottom ends of the T-shaped plates (39).

6. The device for dissipating heat and adjusting a position of a 3D printing head according to claim 5, wherein the insert rod (40) is a telescopic insert rod.

7. The device for dissipating heat and adjusting the position of a 3D printing nozzle according to claim 5, wherein the moving table (37) is provided with two sets of a plurality of insertion holes (41), and the two sets of the plurality of insertion holes (41) are located right below the insertion rod (40).

8. The device for dissipating heat and adjusting position of a 3D printing nozzle according to claim 5, wherein a threaded plate (42) is disposed directly above the top end of the movable table (37), a plurality of third threaded holes (43) are disposed on the threaded plate (42), a plurality of fourth threaded holes (44) are disposed on the top end of the movable table (37), the plurality of third threaded holes (43) are all located directly above the corresponding plurality of fourth threaded holes (44), a second threaded rod (45) matched with the third threaded holes is inserted into the plurality of third threaded holes (43), and the second threaded rod (45) respectively penetrates through the corresponding plurality of third threaded holes (43) and the plurality of fourth threaded holes (44).

9. The heat dissipation and position adjustment device for the 3D printing nozzle as recited in claim 8, wherein a T-shaped worktable (46) is fixedly arranged at the center position of the top end of the thread plate (42).

10. The device for dissipating heat and adjusting position of a 3D printing nozzle according to claim 1, wherein a layer of moisture-proof paint is coated in the first threaded hole (4), the second threaded hole (6) and the first threaded rod (7).

Technical Field

The invention relates to the field of 3D printing, in particular to a device for heat dissipation and position adjustment of a 3D printing nozzle.

Background

The shower nozzle of 3D printer is as one of the core component of 3D printer, the fashioned quality has been decided to a great extent, the smoothness degree of extrusion mouth outflow silk material and the temperature of going out the silk directly influence the precision that 3D printed, but if the shower nozzle high temperature can lead to other parts to dissolve and burn out, consequently need heat abstractor with shower nozzle temperature control in certain within range, present stage, install radiator fan in shower nozzle department usually, at the printing in-process, the vibrations that the radiator fan operation produced can influence the shaping quality of 3D printer.

Application patent number is CN201620108462.X a shower nozzle heat abstractor of 3D printer, mentions radiator fan's air outlet both sides in this beneficial effect and is fixed with two and gathers the aerofoil, two are gathered the equal slope setting of aerofoil, and two are gathered contained angle between the aerofoil for the acute angle, and two are gathered the aerofoil and have strengthened radiator fan's radiating effect under the same rotational speed, because two are gathered the aerofoil and become the acute angle setting, have and gather the wind effect, consequently, can reduce radiator fan's rotational speed, alleviate radiator fan's vibrations.

The spray head is only aligned to the fixing mode of the cooling fan to dissipate heat in the patent, and the other side of the spray head cannot dissipate heat through the cooling fan, so that the heat dissipation is uneven, and the fan is needed to dissipate heat from the spray head and the inside of the machine shell at multiple angles.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

The invention aims to provide a device for dissipating heat and adjusting the position of a 3D printing nozzle, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a device for heat dissipation and position adjustment of a 3D printing nozzle comprises a U-shaped plate, wherein through grooves are formed in two sides of the wall of the U-shaped plate, a placing plate is slidably penetrated through the through grooves, first threaded holes are formed in the top, close to the two sides, of the placing plate, fixing plates are fixedly arranged on two sides of the outer wall of the U-shaped plate, second threaded holes are formed in the fixing plates, first threaded rods are slidably penetrated through the first threaded holes and respectively slidably penetrated through the first threaded holes and the second threaded holes correspondingly, a feeding air cylinder is fixedly arranged at the central position of the top end of the placing plate, a piston rod is arranged at the output end of the feeding air cylinder, a first round hole is formed in the central position of the top end of the placing plate, the piston rod penetrates through the first round hole, the bottom end of the piston rod is located under the placing plate, and a 3D printing nozzle shell is fixedly arranged at the bottom, the 3D printing spray head comprises a 3D printing spray head shell, a 3D printing spray cavity is arranged in the 3D printing spray cavity, the bottom of a piston rod is positioned in the 3D printing spray cavity, an extrusion disc is fixedly arranged at the bottom of the piston rod and positioned in the 3D printing spray cavity, a storage groove is fixedly arranged at the top end of a U-shaped plate, a feeding pipe is arranged on one side of the outer wall of the storage groove, a material receiving pipe is arranged on the 3D printing spray cavity and penetrates through one side of the 3D printing spray head shell to be arranged outside the 3D printing spray head shell, the output end of the feeding pipe is communicated with the material receiving end of the material receiving pipe through a pipeline connector, a circular cavity is fixedly arranged at the bottom end of the 3D printing spray cavity, an internal thread is arranged in the circular cavity, a spray head is arranged in the circular cavity in a sliding mode, an external thread is arranged at, the bottom end of the 3D printing nozzle shell is provided with a fourth round hole, the nozzle penetrates through the fourth round hole, the nozzle end of the nozzle is positioned outside the bottom end of the 3D printing nozzle shell, one side of the inner wall of the U-shaped plate is fixedly provided with a rotating motor, the output end of the rotating motor is provided with a rotating rod, one side of the 3D printing nozzle shell is provided with a second round hole, the other end of the rotating rod penetrates through the second round hole, one side of the inner wall of the 3D printing nozzle shell is fixedly provided with two fixing rods, the second round hole is positioned in the center of the two fixing rods, the other end of the two fixing rods is fixedly provided with a rotating disc, the other end of the rotating rod is fixedly connected with a Z-shaped rod, the rotating disc is positioned in the center and provided with a third round hole, and the top of the Z-shaped rod, the fixed quantity that is equipped with of carousel opposite side is two sets of round bar, and quantity has all seted up the circular recess on being two sets of round bar, and quantity is equipped with the cross pole between the two sets of round bar, the cross pole lateral wall slides and sets up in corresponding circular recess, erect the groove has been seted up on the cross pole, the Z type pole bottom slides and runs through erect the groove, the Z type pole is kept away from the both sides of cross pole are all fixed and are equipped with the fan, the fan output all is equipped with the tuber pipe, the tuber pipe other end all runs through the cross pole.

Further, the 3D printing spraying cavity is a circular printing spraying cavity. .

Furthermore, the number of each group of round rods is two.

Furthermore, a matched sealing cover is arranged at the top end of the material storage groove, a lifting handle is fixedly arranged at the top end of the sealing cover, and anti-skidding threads are arranged on the lifting handle.

Further, a working plate is fixedly arranged between the groove walls of the U-shaped plates, a sliding groove is formed in the working plate, a sliding rod is arranged in the sliding groove, a moving platform is arranged at the top end of the sliding rod, two T-shaped grooves are formed in the bottom of the moving platform, T-shaped plates are placed in the T-shaped grooves in a sliding mode, and inserting rods are fixedly arranged at the bottom ends of the T-shaped plates.

Furthermore, the inserted bar is a telescopic inserted bar.

Furthermore, a plurality of jacks of which the number is two groups are arranged on the mobile station, and the jacks of which the number is two groups are all positioned under the inserted link.

Further, be equipped with the thread plate directly over the mobile station top, be equipped with a plurality of third screw hole on the thread plate, the mobile station top is equipped with a plurality of fourth screw hole, and a plurality of third screw hole all is located a plurality of corresponding fourth screw hole directly over, all insert in a plurality of third screw hole and be equipped with assorted second threaded rod, the second threaded rod runs through corresponding a plurality of third screw hole and a plurality of fourth screw hole respectively.

Furthermore, a T-shaped workbench is fixedly arranged at the center of the top end of the threaded plate.

Furthermore, moisture-proof paint coatings are coated in the first threaded hole, the second threaded hole and the first threaded rod.

Compared with the prior art, the invention has the following beneficial effects

(1) The utility model discloses a shower nozzle casing, including the board, the board is placed to the board, through placing the board and rise and descend in the wearing groove, adjust the height position of placing the 3D printing shower nozzle casing of board bottom, first threaded rod of rethread runs through first screw hole and second screw hole, thereby will place the board and fix in the wearing groove, consequently, 3D printing in the 3D printing shower nozzle casing spouts the chamber and fixes, set up the material receiving pipe into telescopic material receiving pipe, 3D printing shower nozzle casing descends and when rising, the material receiving pipe also can stretch out and draw back, it spouts the chamber and descends to suitable height to print 3D, the convenience is turned round the shower nozzle in following circular cavity and is taken off, thereby the convenience is washd the shower.

(2) The rotating rod is driven to rotate through the rotating motor, so that the Z-shaped rod is driven to rotate, the Z-shaped rod drives the circular groove of the cross rod to move back and forth in the rotating process, the air pipe on the fan is driven to move back and forth, and therefore the air pipe can effectively radiate heat in the 3D printing nozzle shell and can radiate heat to the nozzle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a front view of an apparatus for dissipating heat and adjusting the position of a 3D print head according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a first circular hole of a device for dissipating heat and adjusting a position of a 3D printing head according to an embodiment of the invention;

FIG. 3 is a schematic diagram of a cover of an apparatus for dissipating heat and adjusting a position of a 3D print head according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a rotating disk of a device for dissipating heat and adjusting a position of a 3D printing head according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of an apparatus for dissipating heat and adjusting a position of a 3D print head according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a working plate of a device for dissipating heat and adjusting the position of a 3D printing head according to an embodiment of the invention;

FIG. 7 is a schematic diagram of a circular cavity of a device for dissipating heat and adjusting the position of a 3D printing head according to an embodiment of the invention;

fig. 8 is a fourth circular hole schematic diagram of a device for dissipating heat and adjusting a position of a 3D printing head according to an embodiment of the invention.

Reference numerals:

1. a U-shaped plate; 2. penetrating a groove; 3. placing the plate; 4. a first threaded hole; 5. a fixing plate; 6. a second threaded hole; 7. a first threaded rod; 8. a feed cylinder; 9. a piston rod; 10. a first circular hole; 11. 3D printing a spray head shell; 12. 3D printing a spraying cavity; 13. an extrusion disc; 14. a material storage groove; 15. a feed pipe; 16. a material receiving pipe; 17. a pipe connector; 18. rotating the motor; 19. a rotating rod; 20. a second circular hole; 21. fixing the rod; 22. rotating the disc; 23. a Z-shaped rod; 24. a third circular hole; 25. a round bar; 26. a circular groove; 27. a cross bar; 28. a vertical slot; 29. a fan; 30. an air duct; 31. a fourth circular hole; 32. sealing the cover; 33. a handle; 34. a working plate; 35. a chute; 36. a slide bar; 37. a mobile station; 38. a T-shaped groove; 39. a T-shaped plate; 40. inserting a rod; 41. a jack; 42. a thread plate; 43. a third threaded hole; 44. a fourth threaded hole; 45. a second threaded rod; 46. a work table; 47. a circular cavity; 48. an internal thread; 49. a spray head; 50. and (4) external threads.

Detailed Description

The invention is further described with reference to the following drawings and detailed description:

the first embodiment is as follows:

referring to fig. 1-8, a device for dissipating heat and adjusting a position of a 3D printing nozzle according to an embodiment of the present invention includes a U-shaped plate 1, through grooves 2 are formed on both sides of a wall of the U-shaped plate 1, a placing plate 3 slidably penetrates through the through grooves 2, first threaded holes 4 are formed in tops of the placing plate 3 near both sides, fixing plates 5 are fixedly disposed on both sides of an outer wall of the U-shaped plate 1, second threaded holes 6 are formed in the fixing plates 5, first threaded rods 7 slidably penetrate through the first threaded holes 4, the first threaded rods 7 respectively slidably penetrate through the corresponding first threaded holes 4 and the corresponding second threaded holes 6, a feeding cylinder 8 is fixedly disposed at a center position of a top end of the placing plate 3, a piston rod 9 is disposed at an output end of the feeding cylinder 8, a first circular hole 10 is formed at a center position of a top end of the placing plate 3, the piston rod 9 penetrates through the first round hole 10, the bottom end of the piston rod 9 is positioned under the placing plate 3, the bottom end of the placing plate 3 is fixedly provided with a 3D printing spray head shell 11, a 3D printing spray cavity 12 is arranged in the 3D printing spray head shell 11, the bottom of the piston rod 9 is positioned in the 3D printing spray cavity 12, the bottom end of the piston rod 9 is fixedly provided with an extrusion disc 13, the extrusion disc 13 is positioned in the 3D printing spray cavity 12, the top end of the U-shaped plate 1 is fixedly provided with a material storage groove 14, one side of the outer wall of the material storage groove 14 is provided with a feeding pipe 15, the 3D printing spray cavity 12 is provided with a material receiving pipe 16, the material receiving end of the material receiving pipe 16 penetrates through one side of the 3D printing spray head shell 11 and is arranged outside the 3D printing spray head shell 11, and the output end of the feeding pipe 15 is communicated with the, the bottom end of the 3D printing spray cavity 12 is fixedly provided with a circular cavity 47, an internal thread 48 is arranged in the circular cavity 47, a spray head 49 is arranged in the circular cavity 47 in a sliding manner, an external thread 50 is arranged at the top of the spray head 49, the top of the spray head 49 is arranged in the circular cavity 47 in a sliding manner through the external thread 50 and the internal thread 48, a fourth round hole 31 is arranged at the bottom end of the 3D printing spray head shell 11, the spray head 49 penetrates through the fourth round hole 31, the spray head end of the spray head 49 is positioned outside the bottom end of the 3D printing spray head shell 11, a rotating motor 18 is fixedly arranged on one side of the inner wall of the U-shaped plate, an output end of the rotating motor 18 is provided with a rotating rod 19, one side of the 3D printing spray head shell 11 is provided with a second round hole 20, the other end of the rotating rod 19 penetrates through the second round hole, the second round hole 20 is located in the center of the two fixing rods 21, the other end of the two fixing rods 21 is fixedly provided with a rotating disc 22, the other end of the rotating rod 19 is fixedly connected with a Z-shaped rod 23, the rotating disc 22 is located at the center and provided with a third round hole 24, the top of the Z-shaped rod 23 movably penetrates through the third round hole 24, the other side of the rotating disc 22 is fixedly provided with two groups of round rods 25, the two groups of round rods 25 are both provided with round grooves 26, a cross rod 27 is arranged between the two groups of round rods 25, the side wall of the cross rod 27 is slidably arranged in the corresponding round groove 26, the cross rod 27 is provided with a vertical groove 28, the bottom of the Z-shaped rod 23 slidably penetrates through the vertical groove 28, two sides of the Z-shaped rod 23 far away from the cross rod 27 are both fixedly provided with a fan 29, the output end of the fan 29 is provided with an air pipe 30, the other end of the air pipe 30 penetrates through the cross bar 27.

Through the scheme of the invention, the beneficial effects are as follows: the height position of a 3D printing nozzle shell 11 at the bottom end of a placing plate 3 is adjusted by ascending and descending the placing plate 3 in a through groove 2, and then the placing plate 3 penetrates through a first threaded hole 4 and a second threaded hole 6 through a first threaded rod 7 so as to be fixed in the through groove 2, so that a 3D printing spraying cavity 12 in the 3D printing nozzle shell 11 is fixed, a material receiving pipe 16 is set to be a telescopic material receiving pipe, when the 3D printing nozzle shell 11 descends and ascends, the material receiving pipe 16 can also stretch, the 3D printing spraying cavity 12 descends to a proper height, a spraying head 49 is conveniently twisted and taken down from a circular cavity 47, the spraying head 49 is conveniently cleaned, a rotating rod 19 is driven to rotate by rotating a motor 18, a Z-shaped rod 23 is driven to rotate, the Z-shaped rod 23 drives a cross rod 27 to move back and forth in a circular groove 26 on a circular rod 25 in the rotating process, thereby driving the air pipe 30 on the fan 29 to move back and forth, so that the air pipe 30 can effectively dissipate heat in the 3D printing nozzle shell 11, and can also dissipate heat of the nozzle 49.

Example two:

referring to fig. 1, for the 3D printing spray chamber 12, the 3D printing spray chamber 12 is a circular printing spray chamber.

Through the scheme of the invention, the beneficial effects are as follows: the circular print nozzle chamber and the circular cavity 47 play a matching role.

Example three:

referring to fig. 4, for the round rods 25, the number of each round rod 25 is two.

Through the scheme of the invention, the beneficial effects are as follows: the number of rods 25 in each set is two, so that the cross-bar 27 slides more firmly in the circular groove 26 of the rod 25.

Example four:

referring to fig. 3, for the material storage tank 14, a matched sealing cover 32 is arranged at the top end of the material storage tank 14, a lifting handle 33 is fixedly arranged at the top end of the sealing cover 32, and anti-skid threads are arranged on the lifting handle 33.

Through the scheme of the invention, the beneficial effects are as follows: the cover 32 prevents dust from entering the storage tank 14, and the lifting handle 33 is more convenient to lift the cover 32.

Example five:

referring to fig. 6, for the U-shaped plate 1, a working plate 34 is fixedly arranged between groove walls of the U-shaped plate 1, a sliding groove 35 is formed in the working plate 34, a sliding rod 36 is arranged in the sliding groove 35, a moving table 37 is arranged at the top end of the sliding rod 36, two T-shaped grooves 38 are formed in the bottom of the moving table 37, T-shaped plates 39 are slidably arranged in the T-shaped grooves 38, and inserting rods 40 are fixedly arranged at the bottom ends of the T-shaped plates 39.

Example six:

referring to fig. 6, for the insert rod 40, the insert rod 40 is a telescopic insert rod.

Through the scheme of the invention, the beneficial effects are as follows: the plunger 40 can be extended and shortened.

Example seven:

referring to fig. 6, for the mobile station 37, two sets of a plurality of insertion holes 41 are formed on the mobile station 37, and the two sets of the plurality of insertion holes 41 are located right below the insertion rod 40.

Through the scheme of the invention, the beneficial effects are as follows: the movable table 37 is moved by the sliding rod 36 moving in the sliding slot 35, and then the movable table 37 is fixed by the inserting rod 40 sliding in the T-shaped slot 38 and inserting the inserting rod 40 into the appropriate inserting hole 41.

Example eight:

referring to fig. 6, for the mobile station 37, a threaded plate 42 is disposed right above the top end of the mobile station 37, a plurality of third threaded holes 43 are disposed on the threaded plate 42, a plurality of fourth threaded holes 44 are disposed at the top end of the mobile station 37, the plurality of third threaded holes 43 are all located right above the corresponding plurality of fourth threaded holes 44, matched second threaded rods 45 are inserted into the plurality of third threaded holes 43, and the second threaded rods 45 respectively penetrate through the corresponding plurality of third threaded holes 43 and the plurality of fourth threaded holes 44.

Through the scheme of the invention, the beneficial effects are as follows: the threaded plate 42 is fixed to the tip of the movable table 37 by engagement of the threaded rod with the threaded hole.

Example nine:

referring to fig. 6, for the screw plate 42, a T-shaped worktable 46 is fixedly arranged at the center of the top end of the screw plate 42.

Through the scheme of the invention, the beneficial effects are as follows: the position where the T-shaped table 46 is operated is determined by the moving table 37 to reduce unnecessary errors, and then the moving table 37 is fixed by inserting the insertion rod 40 into the appropriate insertion hole 41, thereby fixing the T-shaped table 46.

Example ten:

referring to fig. 1, for the first threaded hole 4, a moisture-proof paint coating layer is coated in the first threaded hole 4, the second threaded hole 6 and the first threaded rod 7.

Through the scheme of the invention, the beneficial effects are as follows: the moisture-proof paint coating layer plays a moisture-proof role in the threaded hole and the threaded rod.

In summary, with the above technical solution of the present invention, the working principle and all the beneficial effects are as follows: the height position of a 3D printing nozzle shell 11 at the bottom end of a placing plate 3 is adjusted by ascending and descending the placing plate 3 in a through groove 2, and then the placing plate 3 penetrates through a first threaded hole 4 and a second threaded hole 6 through a first threaded rod 7 so as to be fixed in the through groove 2, so that a 3D printing spraying cavity 12 in the 3D printing nozzle shell 11 is fixed, a material receiving pipe 16 is set to be a telescopic material receiving pipe, when the 3D printing nozzle shell 11 descends and ascends, the material receiving pipe 16 can also stretch, the 3D printing spraying cavity 12 descends to a proper height, a spraying head 49 is conveniently twisted and taken down from a circular cavity 47, the spraying head 49 is conveniently cleaned, a rotating rod 19 is driven to rotate by rotating a motor 18, a Z-shaped rod 23 is driven to rotate, the Z-shaped rod 23 drives a cross rod 27 to move back and forth in a circular groove 26 on a circular rod 25 in the rotating process, thereby driving the wind pipe 30 on the fan 29 to move back and forth, so that the wind pipe 30 can effectively dissipate heat in the 3D printing nozzle shell 11, and also can dissipate heat of the nozzle 49, the circular printing spray cavity and the circular cavity 47 play a matched role, the number of each group of circular rods 25 is two, for the cross rods 27 to slide more stably in the circular grooves 26 on the circular rods 25, the cover 32 prevents dust from entering the storage tank 14, the handle 33 can more conveniently lift the cover 32, the inserted link 40 can be extended and shortened, the sliding rod 36 moves in the sliding groove 35, thereby driving the moving platform 37 to move, and then the inserted link 40 slides in the T-shaped groove 38, and the inserted link 40 is inserted into the proper jack 41, thereby fixing the moving platform 37, through the matching of the threaded rod and the threaded hole, thereby fixing the threaded plate 42 at the top end of the moving platform 37, the working position of the T-shaped workbench 46 is determined through the movable table 37, unnecessary errors are reduced, and then the inserting rod 40 is inserted into the appropriate inserting hole 41 to fix the movable table 37, so that the T-shaped workbench 46 is fixed, and the moisture-proof paint coating layer plays a moisture-proof role in a threaded hole and a threaded rod.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.