CN213947437U

CN213947437U - Multi-nozzle rotating three-dimensional printing device based on piston extrusion technology

Info

Publication number: CN213947437U
Application number: CN202022228316.XU
Authority: CN
Inventors: 姜闻博
Original assignee: Shanghai Additive Manufacturing Research Institute Co ltd
Current assignee: Shanghai Additive Manufacturing Research Institute Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-08-13
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technology, including printing the heating platform, it is equipped with fixed frame to print the heating platform top, the fixed connection has flexible heat preservation rail between fixed frame and the printing heating platform, it is all fixedly connected with the threaded rod to print heating platform top both sides, the threaded rod is located flexible heat preservation rail both sides, threaded cylinder has all been worn to fixed frame top both sides, threaded cylinder bottom end is fixed to be worn to be equipped with the fender ring, the fender ring is located the fixed frame bottom, threaded cylinder top end is fixed to be worn to be equipped with the adjustable ring, the adjustable ring is located the fixed frame top, threaded rod top runs through threaded cylinder, threaded cylinder passes through the screw thread and is connected with the threaded rod rotation; through installing the threaded rod additional at printing heating platform both ends, the tensile heat preservation rail that stretches out and draws back of fixed frame makes flexible heat preservation rail can surround and prints the object, has ensured that the temperature variation is less between printing object layer and the layer, promotes and prints the quality.

Description

Multi-nozzle rotating three-dimensional printing device based on piston extrusion technology

Technical Field

The utility model relates to a three-dimensional printing especially relates to a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technique.

Background

The 3D printer is also called a three-dimensional printer, and is a machine which utilizes a rapid prototyping technology, and the printing realizes material printing by a piston extrusion method. The printer adopts a plurality of spray heads to print different materials respectively. A plurality of nozzles of the printer are arranged on the same circular rotating platform, the rotating angle of the rotating platform is controlled through a program, the nozzles in a printing state are rotated to a printing position for printing each time, and the rest nozzles do not print. The three-dimensional printer is widely applied to the fields of aerospace, biomedical, automobiles, molds, cultural wound and the like, and in the printing process of the three-dimensional printer, the temperature of a printed object needs to be controlled within a temperature range through the heat-insulating fence, so that the temperature change between layers is small, and the printing quality is ensured.

The height of the heat-insulating fence in the existing three-dimensional printer is fixed, and when a higher object needs to be printed, the height of the heat-insulating fence cannot be adjusted, so that the heat-insulating fence is difficult to surround the printed object, the temperature change between layers of the printed object is large, and the printing quality is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's not enough, the utility model provides a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technique can solve heat preservation rail height-fixing unchangeable among the current three-dimensional printer, when the higher object is printed to needs, because heat preservation rail height can not be adjusted for heat preservation rail is difficult to surround and prints the object, thereby leads to printing object layer and layer between the temperature variation great, has reduced the technical problem who prints the quality.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technology, includes printing heating platform, it is equipped with fixed frame to print the heating platform top, the flexible heat preservation rail of fixedly connected with between fixed frame and the printing heating platform, print the equal fixedly connected with threaded rod in heating platform top both sides, the threaded rod is located flexible heat preservation rail both sides, a screw thread section of thick bamboo has all been worn to fixed frame top both sides, screw thread section of thick bamboo bottom end is fixed to be worn to be equipped with and keeps off the ring, it is located fixed frame bottom to keep off the ring, screw thread section of thick bamboo top end is fixed to be worn to be equipped with the adjustable ring, the adjustable ring is located fixed frame top, the threaded rod top runs through a screw thread section of thick bamboo, a screw thread section of thick bamboo passes through the screw thread and is connected with the threaded rod rotation.

As a preferred technical proposal of the utility model, the peripheral surface of the printing and heating platform is provided with a third mounting groove communicated with the third mounting groove, a heat radiation frame is arranged in the third mounting groove, a limit groove is arranged in the middle of two sides of the heat radiation frame, the peripheral surface of the printing and heating platform is provided with a first mounting groove, the first mounting groove is arranged on two sides of the third mounting groove, a chute is arranged on the inner side of the first mounting groove, a second mounting groove is arranged on the inner side of the chute, the chute is communicated with the first mounting groove and the second mounting groove, a limit block is arranged in the second mounting groove, one end of the limit block passes through the second mounting groove and extends to the limit groove, a spring is arranged between the other end of the limit block and the second mounting groove, a slide block is connected in the first mounting groove, a connecting block is arranged between the slide block and the limit block, the connecting block slides in the sliding groove.

As a preferred technical scheme of the utility model, print heating platform and be the cuboid, print heating platform length and width unanimous with fixed frame length and width.

As a preferred technical scheme of the utility model, anti-skidding groove has been seted up in the adjustable ring outside, anti-skidding groove equidistance distributes in the adjustable ring outside.

As a preferred technical scheme of the utility model, print heating platform top both sides and all be provided with the guide rail, sliding connection has the connecting rod between two guide rails, the connecting rod bottom is equipped with the adjustment disk, the connecting rod passes through the rotation axis and is connected with the adjustment disk rotation, adjustment disk bottom equidistance is provided with the three-dimensional printer head that beats.

As a preferred technical scheme of the utility model, the guide slot has been seted up to stopper one end, second mounting groove one end fixedly connected with guide arm, the guide arm runs through the spring, and inside its one end extended to the guide slot, the guide arm slided at the guide slot.

As an optimized technical scheme of the utility model, the guide arm is the cylinder, and the surface is smooth.

As an optimal technical scheme of the utility model, the slider cross-section is the rectangle, the antiskid groove is seted up to the slider front surface.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. by additionally arranging the threaded rods at the two ends of the printing and heating platform, when the height of the telescopic heat-insulating fence needs to be adjusted, the adjusting ring is rotated, the adjusting ring simultaneously drives the threaded cylinder and the retaining ring to rotate, the threaded cylinder is lifted under the action of threads, the threaded cylinder drives the fixing frame to lift through the retaining ring, and the fixing frame stretches the telescopic heat-insulating fence, so that the telescopic heat-insulating fence can surround a printing object, the temperature change between layers of the printing object is small, and the printing quality is improved;

2. through install the slider additional at printing heating platform front surface, when needs wash heat dissipation frame surface adsorption's dust, take off the heat dissipation frame earlier, the slider slides, pass through the connecting block by the slider and drive the stopper removal, make stopper one end leave the limiting groove inside, then take out the heat dissipation frame from the third mounting groove is inside, make things convenient for the staff to wash the dust on heat dissipation frame surface, promote the air input in the printing heating platform, the radiating efficiency of the heater block of printing heating platform has been promoted.

Drawings

Fig. 1 is a schematic structural view of a three-dimensional printing apparatus according to the present invention;

fig. 2 is a schematic cross-sectional structural view of the threaded cylinder according to the present invention;

FIG. 3 is an enlarged view of the structure at b in FIG. 2;

fig. 4 is a schematic sectional view of a second mounting groove of the present invention;

FIG. 5 is an enlarged view of a portion a of FIG. 1;

wherein: 1. printing a heating platform; 2. a fixing frame; 31. a connecting rod; 32. a rotating shaft; 33. An adjusting disk; 34. a three-dimensional printhead; 4. a guide rail; 5. a threaded rod; 7. an adjusting ring; 71. A threaded barrel; 72. a baffle ring; 8. a telescopic heat-insulating fence; 9. a heat dissipation frame; 10. a first mounting groove; 101. a slider; 102. connecting blocks; 103. a chute; 104. a second mounting groove; 105. a limiting block; 106. a spring; 107. a guide bar; 108. a guide groove; 109. a limiting groove; 110. and a third mounting groove.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example 1

Referring to fig. 1 of the drawings, fig. 2 and fig. 3 show, the utility model provides a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technology, including

printing heating platform

1, 1 top of printing heating platform is equipped with fixed frame 2, the flexible heat preservation rail 8 of fixedly connected with between fixed frame 2 and the printing heating platform 1, flexible heat preservation rail 8 adopts high temperature resistant polyester film to make, the equal fixedly connected with threaded rod 5 in 1 top both sides of printing heating platform, threaded rod 5 is located flexible heat preservation rail 8 both sides, a screw section of thick bamboo 71 has all been worn to fixed frame 2 top both sides, a screw section of thick bamboo 71 is worn to be equipped with to the bottom mounting of a screw section of thick bamboo 71, it is located fixed frame 2 bottoms to keep off ring 72, fixed adjustable ring 7 of wearing to be equipped with in a screw section of thick bamboo 71 top, a screw section of thick bamboo 71 runs through screw section of.

During the use, when the height of flexible heat preservation rail 8 needs to be adjusted, rotate adjustable ring 7, drive a screw thread section of thick bamboo 71 and keep off ring 72 by adjustable ring 7 and rotate simultaneously, make a screw thread section of thick bamboo 71 rise under the effect of screw thread by a screw thread section of thick bamboo 71, drive fixed frame 2 by a screw thread section of thick bamboo 71 through keeping off ring 72 and rise, by the flexible heat preservation rail 8 of fixed frame 2 drawing, make flexible heat preservation rail 8 can surround the printing object, it is less to have ensured that the temperature variation is less between the printing object layer, promote the printing quality.

Please refer to fig. 1, the printing and heating platform 1 is a cuboid, the length and width of the printing and heating platform 1 is consistent with the length and width of the fixing frame 2, the outer side of the adjusting ring 7 is provided with an anti-slip groove, the anti-slip groove is equidistantly distributed on the outer side of the adjusting ring 7, the adjusting ring 7 is convenient to rotate, both sides of the top end of the printing and heating platform 1 are respectively provided with a guide rail 4, a connecting rod 31 is slidably connected between the two guide rails 4, the bottom end of the connecting rod 31 is provided with an adjusting disc 33, the connecting rod 31 is rotatably connected with the adjusting disc 33 through a rotating shaft 32, the bottom end of.

Example 2

Referring to fig. 1, fig. 4 and fig. 5, the present invention provides a multi-nozzle rotary three-dimensional printing apparatus based on piston extrusion technology, the embodiment adopts the same technical solution as the first embodiment, except that the peripheral surface of a printing and heating platform 1 is provided with third mounting grooves 110 communicated with the peripheral surface, a heat dissipating frame 9 is arranged in the third mounting groove 110, the middle of two sides of the heat dissipating frame 9 is provided with a limiting groove 109, the peripheral surface of the printing and heating platform 1 is provided with first mounting grooves 10, the first mounting grooves 10 are located at two sides of the third mounting groove 110, the inner side of the first mounting groove 10 is provided with a sliding groove 103, the inner side of the sliding groove 103 is provided with a second mounting groove 104, the sliding groove 103 is communicated with the first mounting groove 10 and the second mounting groove 104, a limiting block 105 is arranged in the second mounting groove 104, one end of the limiting block 105 penetrates through the second mounting groove 104 and extends into the limiting groove 109, a spring 106 is arranged between the other end of the limiting block 105 and the second mounting groove 104, a sliding block 101 is slidably connected in the first mounting groove 10, a connecting block 102 is arranged between the sliding block 101 and the limiting block 105, and the connecting block 102 slides in the sliding groove 103.

During the use, when needing to wash heat dissipation frame 9 surface adsorption's dust, take off heat dissipation frame 9 earlier, slider 101 slides, drive stopper 105 removal through connecting block 102 by slider 101, make stopper 105 one end leave inside spacing groove 109, then take out heat dissipation frame 9 from third mounting groove 110 is inside, make things convenient for the staff to wash the dust on heat dissipation frame 9 surface, promote the air input in the printing and heating platform 1, the radiating efficiency of the heater block of printing and heating platform 1 has been promoted.

Referring to fig. 4, one end of the limiting block 105 is provided with a guide groove 108, one end of the second mounting groove 104 is fixedly connected with a guide rod 107, the guide rod 107 penetrates through the spring 106, one end of the guide rod 107 extends into the guide groove 108, the guide rod 107 slides in the guide groove 108 to ensure the stability of the limiting block 105 moving left and right, and the guide rod 107 is a cylinder and has a smooth outer surface to reduce the moving friction force.

Referring to fig. 1 and 5, the cross section of the slider 101 is rectangular, and the front surface of the slider 101 is provided with an anti-slip groove to facilitate sliding the slider 101.

The utility model provides a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technology, through install threaded rod 5 additional at printing heating platform 1 both ends, when the height of flexible heat preservation rail 8 needs to be adjusted, rotate adjustable ring 7, drive screw cylinder 71 and fender ring 72 simultaneously by adjustable ring 7 and rotate, make screw cylinder 71 rise under the effect of screw thread by screw cylinder 71, drive fixed frame 2 by screw cylinder 71 through fender ring 72 and rise, stretch flexible heat preservation rail 8 by fixed frame 2, make flexible heat preservation rail 8 can surround the printing object, it is less to have ensured that the temperature variation between printing object layer and layer, promote the printing quality; through installing slider 101 additional at printing heating platform 1 front surface, when needs wash heat dissipation frame 9 surface adsorption's dust, take off heat dissipation frame 9 earlier, slide block 101, it removes to drive stopper 105 through connecting block 102 by slider 101, make stopper 105 one end leave inside spacing groove 109, then take out heat dissipation frame 9 from third mounting groove 110 is inside, make things convenient for the staff to wash the dust on heat dissipation frame 9 surface, promote the interior air input of printing heating platform 1, the radiating efficiency of printing heating platform 1's heater block has been promoted.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a rotatory three-dimensional printing device of many shower nozzles based on piston extrusion technology, is including printing heating platform (1), printing heating platform (1) top is equipped with fixed frame (2), fixed frame (2) and printing heating platform (1) between the flexible heat preservation rail (8) of fixedly connected with, its characterized in that: print equal fixedly connected with threaded rod (5) in heating platform (1) top both sides, threaded rod (5) are located flexible heat preservation rail (8) both sides, a screw thread section of thick bamboo (71) have all been worn to fixed frame (2) top both sides, screw thread section of thick bamboo (71) bottom mounting is worn to be equipped with and is kept off ring (72), keep off ring (72) and be located fixed frame (2) bottom, fixed adjustable ring (7) of wearing to be equipped with in screw thread section of thick bamboo (71) top, adjustable ring (7) are located fixed frame (2) top, threaded rod (5) top runs through screw thread section of thick bamboo (71), screw thread section of thick bamboo (71) are rotated with threaded rod (5) through the screw thread and are connected.

2. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 1, wherein: the printing and heating platform comprises a printing and heating platform (1), wherein the peripheral surface of the printing and heating platform (1) is provided with third mounting grooves (110) communicated with the printing and heating platform, heat dissipation frames (9) are arranged in the third mounting grooves (110), limiting grooves (109) are formed in the middles of two sides of each heat dissipation frame (9), the peripheral surface of the printing and heating platform (1) is provided with first mounting grooves (10), the first mounting grooves (10) are positioned at two sides of the third mounting grooves (110), sliding grooves (103) are formed in the inner sides of the first mounting grooves (10), second mounting grooves (104) are formed in the inner sides of the sliding grooves (103), the sliding grooves (103) are communicated with the first mounting grooves (10) and the second mounting grooves (104), limiting blocks (105) are arranged in the second mounting grooves (104) in a penetrating manner, one ends of the limiting blocks (105) penetrate through the second mounting grooves (104) and extend into the limiting grooves (109), be equipped with spring (106) between stopper (105) other end and second mounting groove (104), sliding connection has slider (101) in first mounting groove (10), be equipped with connecting block (102) between slider (101) and stopper (105), connecting block (102) slide in spout (103).

3. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 1, wherein: the printing heating platform (1) is a cuboid, and the length and the width of the printing heating platform (1) are consistent with those of the fixing frame (2).

4. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 1, wherein: anti-skidding grooves are formed in the outer side of the adjusting ring (7), and the anti-skidding grooves are distributed in the outer side of the adjusting ring (7) at equal intervals.

5. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 1, wherein: print heating platform (1) top both sides and all be provided with guide rail (4), sliding connection has connecting rod (31) between two guide rail (4), connecting rod (31) bottom is equipped with adjustment disk (33), connecting rod (31) are rotated with adjustment disk (33) through rotation axis (32) and are connected, adjustment disk (33) bottom equidistance is provided with three-dimensional printer head (34).

6. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 2, wherein: guide slot (108) have been seted up to stopper (105) one end, second mounting groove (104) one end fixedly connected with guide arm (107), guide arm (107) run through spring (106), and its one end extends to inside guide slot (108), guide arm (107) slide in guide slot (108).

7. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 6, wherein: the guide rod (107) is a cylinder, and the outer surface of the guide rod is smooth.

8. The multi-nozzle rotary three-dimensional printing device based on the piston extrusion technology as claimed in claim 2, wherein: the section of the sliding block (101) is rectangular, and the front surface of the sliding block (101) is provided with an anti-skidding groove.