CN113386352A

CN113386352A - 3D printer

Info

Publication number: CN113386352A
Application number: CN202110584239.8A
Authority: CN
Inventors: 张改莲; 张洪俊
Original assignee: Individual
Current assignee: Shenzhen Chuanglu Technology Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-09-14
Anticipated expiration: 2041-05-27
Also published as: CN113386352B

Abstract

The invention relates to the technical field of 3D printing equipment, in particular to a 3D printer, which comprises a machine body, wherein a base is fixedly connected to the lower surface of the machine body, a spray head is fixedly connected to the lower surface of a moving member of the machine body, the spray head comprises a shell fixedly connected to the lower surface of the moving member of the machine body, a pipe hole is formed in the upper surface of the shell, a spray pipe is fixedly connected to the inner wall of the pipe hole, and a clamping port is formed in the inner top wall of the shell. Thereby make this 3D printer solve the problem that the shower nozzle appears the wire drawing when moving the point.

Description

3D printer

Technical Field

The invention relates to the technical field of 3D printing equipment, in particular to a 3D printer.

Background

A three-dimensional printer, also called a three-dimensional printer, is a rapid molding process, a three-dimensional model is manufactured layer by layer in a layer-by-layer stacking mode, the operation process of the three-dimensional printer is similar to that of a traditional printer, except that the traditional printer prints ink on paper to form a two-dimensional plane drawing, and the three-dimensional printer realizes layer-by-layer stacking and overlapping of liquid photosensitive resin materials, molten plastic wires, gypsum powder and other materials to form a three-dimensional entity in a binder spraying or extruding mode.

Current 3D printer is at the printing in-process, the problem of wire drawing often can appear, in order to avoid appearing the wire drawing condition, the mode of material pumpback is adopted usually, move before next point at the shower nozzle promptly, can pull back one section distance with the consumptive material in the opposite direction, when moving next point, the consumptive material is extruded once more again, but not enough at the pumpback distance, the pumpback speed is slow excessively, under these four kinds of circumstances of shower nozzle high temperature and unsettled removal distance overlength, in the nozzle department of shower nozzle, still there is partial consumptive material to flow, thereby make the wire drawing problem unable thoroughly solve, cause the printing failure, the unable recycle once more of material of collection. Accordingly, one skilled in the art provides a 3D printer to solve the problems set forth in the background art described above.

Disclosure of Invention

The present invention is directed to a 3D printer to solve the above problems.

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

A3D printer comprises a printer body, wherein a base is fixedly connected to the lower surface of the printer body, and a spray head is fixedly connected to the lower surface of the printer body;

the sprayer comprises a shell fixedly connected with the lower surface of the machine body, the upper surface of the shell is provided with a pipe hole, the inner wall of the pipe hole is fixedly connected with a spraying pipe, and the inner top wall of the shell is provided with a clamping port;

the inner wall sliding connection of shell has water cooling mechanism, the surperficial sliding connection who spouts the material pipe has collection mechanism, the fixed surface of shell is connected with the fixed plate, the quantity of fixed plate is two, two fixed plate circumference equidistance sets up the surface at the shell, the lower fixed surface of fixed plate is connected with electric putter, electric putter's output fixedly connected with slide bar, the slide bar is kept away from the one end of electric putter output and is connected with the fixed surface who collects the mechanism, the rectangular channel with slide bar looks adaptation is seted up on the surface of shell.

As a further scheme of the invention: the water-cooling mechanism includes the water-cooling ring with shell inner wall sliding connection, the last fixed surface of water-cooling ring is connected with the connecting riser, the fixed surface of connecting riser is connected with the rubber ring, the inner wall joint of rubber ring and joint mouth is passed through on the surface of connecting riser, the inner wall sliding connection of water-cooling ring has the piston, the lower fixed surface of piston is connected with the pull rod, the inner wall fixed connection of water-cooling ring has the bottom, the through-hole has been seted up to the upper surface of bottom, through setting up pull rod and piston, can inhale water into the water-cooling ring, and then make the consumptive material in the spray tube cool off rapidly.

As a still further scheme of the invention: the surface fixed connection of shell has the water storage box, the last fixed surface of water storage box is connected with communicating pipe, the one end of keeping away from the water storage box of communicating pipe is pegged graft with the upper surface of connecting the riser and is run through the interior roof of connecting the riser, through setting up water storage box and communicating pipe, can provide the water supply for water cooling mechanism.

As a still further scheme of the invention: the surface of the water-cooling ring is fixedly connected with a limiting rod, the inner wall of the shell is provided with a sliding groove matched with the limiting rod, the surface of the limiting rod is in sliding connection with the inner wall of the sliding groove, the surface of the water-cooling ring is in sliding connection with the inner wall of the shell through the limiting rod, and the connecting vertical pipe can be fast clamped with the clamping interface through the limiting rod.

As a still further scheme of the invention: the electric push rod is electrically connected with the machine body, and the electric push rod can provide power for the electric push rod and be controlled by a control system of the machine body through the electric push rod and the machine body.

As a still further scheme of the invention: the collecting mechanism comprises a collecting shell connected with the surface of the spraying pipe in a sliding mode, the inner bottom wall of the collecting shell is connected with a collecting box in a sliding mode, one side of the collecting box is fixedly connected with a spring, one end, far away from the collecting box, of the spring is fixedly connected with the inner wall of the collecting shell, the collecting box is an open end face and forms a 30-degree included angle with the horizontal plane, the collecting box can be popped up through the spring, and consumable materials dropping from the drawing wire can be collected through the collecting box.

As a still further scheme of the invention: the bottom of pull rod runs through the lower surface of bottom and with collect the upper surface fixed connection of shell, through making pull rod and collecting shell fixed connection, can make water cooling mechanism and collection mechanism function in step, improve the effect of preventing the wire drawing.

As a still further scheme of the invention: a stirring mechanism is arranged obliquely above the spray head, a feeding pipe is fixedly sleeved outside the stirring mechanism, the bottom of the feeding pipe is communicated and fixed with a spray pipe, an air cylinder is fixedly connected to the left side of the stirring mechanism, an air inlet pipe is arranged below the air cylinder, the other end of the air inlet pipe is inserted into the upper surface of a connecting vertical pipe and penetrates through the inner top wall of the connecting vertical pipe, a heating pipe is sleeved between the spray pipe and a water cooling ring, the stirring mechanism comprises a push rod, a first blade, a second blade, a gear, a first bevel gear, a second bevel gear, a flexible shaft, a shaft bracket and a spiral blade, the left end of the push rod penetrates through the feeding pipe and is fixedly connected with the air cylinder in the horizontal direction, the first blade is fixedly connected with the right end of the feeding pipe, the lower end of the push rod is meshed with the gear, the gear is axially connected with the first bevel gear, the first bevel gear is mutually meshed with the second bevel gear, and the second bevel gear is axially fixedly connected with the flexible shaft, the inner wall of the feeding pipe is fixedly provided with a shaft bracket, the flexible shaft is rotationally connected with the shaft bracket, the outer wall of the flexible shaft is provided with a spiral blade, and the pipe diameter of a spraying pipe at the bottom of the spray head between the heating pipe and the collecting box is gradually reduced.

Compared with the prior art, the invention has the beneficial effects that:

in the invention, the electric push rod is arranged to drive the slide rod to move up and down, so that the collecting mechanism can be driven, the collecting box can be pushed out when the collecting mechanism moves below the spray pipe through the spring, so that the consumables flowing out of the spray pipe can be collected, the opening end surface of the collecting box forms an angle of 30 degrees with the horizontal plane, the collecting box can smoothly enter the collecting shell when the electric push rod is contracted, the collecting mechanism and the water cooling mechanism can be connected through the pull rod when the collecting mechanism moves down, the pull rod can drive the piston to move down to change the pressure in the water cooling ring, so that water in the water storage box can enter the water cooling ring to cool the spray pipe, the consumables are rapidly cooled, the overheated consumables are prevented from continuously flowing out, so that the 3D printer solves the problem of wire drawing when a spray head moves to a point, and the residual materials in the collecting box can be cut up through the stirring mechanism, the material in the heating pipe after heating and the spraying pipe is recycled after being fully stirred, and the material can be uniformly fused together before being discharged out of the spray head by utilizing the gradual reduction of the pipe diameter of the spraying pipe.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the nozzle head of the present invention;

FIG. 3 is an internal sectional view of a partial structure of the head of the present invention;

FIG. 4 is a schematic cross-sectional view of a showerhead according to the present invention;

FIG. 5 is a schematic sectional view of the structure of the collecting mechanism of the present invention;

FIG. 6 is a front view of the inner wall of the housing according to the present invention;

FIG. 7 is an exploded view of the water cooling mechanism according to the present invention;

fig. 8 is an enlarged view of the structure at a in fig. 3 according to the present invention.

In the figure: 1. a body; 2. a base; 3. a spray head; 301. a housing; 302. a material spraying pipe; 303. a card interface; 4. a water cooling mechanism; 401. water cooling ring; 402. connecting a vertical pipe; 403. a rubber ring; 404. a piston; 405. a pull rod; 406. a bottom cover; 407. a through hole; 5. a collection mechanism; 501. collecting the shells; 502. a collection box; 503. a spring; 6. a fixing plate; 7. an electric push rod; 8. a slide bar; 9. a water storage tank; 10. a communicating pipe; 11. a limiting rod; 12. a stirring mechanism; 1201. a push rod; 1202. a first blade; 1203. a second blade; 1204. a gear; 1205. a first bevel gear; 1206. a second bevel gear; 1207. a flexible shaft; 1208. a pedestal; 1209. a helical blade; 13. a feed pipe; 14. a cylinder; 15. an air inlet pipe; 16. heating the tube.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1 to 8, in an embodiment of the present invention, a 3D printer includes a body 1, a base 2 is fixedly connected to a lower surface of the body 1, and a nozzle 3 is fixedly connected to the lower surface of the body 1; the sprayer 3 comprises a shell 301 fixedly connected with the lower surface of the machine body 1, the upper surface of the shell 301 is provided with a pipe hole, the inner wall of the pipe hole is fixedly connected with a spraying pipe 302, and the inner top wall of the shell 301 is provided with a clamping interface 303; inner wall sliding connection of shell 301 has water cooling mechanism 4, the surperficial sliding connection of spouting material pipe 302 has collection mechanism 5, the fixed surface of shell 301 is connected with fixed plate 6, the quantity of fixed plate 6 is two, 6 circumference equidistance settings of two fixed plates are on the surface of shell 301, the lower fixed surface of fixed plate 6 is connected with electric putter 7, electric putter 7's output fixedly connected with slide bar 8, the one end of electric putter 7 output and the fixed surface of collecting mechanism 5 are kept away from to slide bar 8, the rectangular channel with 8 looks adaptations of slide bar is seted up on the surface of shell 301.

The water cooling mechanism 4 comprises a water cooling ring 401 which is in sliding connection with the inner wall of the shell 301, the upper surface of the water cooling ring 401 is fixedly connected with a connecting vertical pipe 402, the surface of the connecting vertical pipe 402 is fixedly connected with a rubber ring 403, the surface of the connecting vertical pipe 402 is clamped with the inner wall of the clamping port 303 through the rubber ring 403, the inner wall of the water cooling ring 401 is in sliding connection with a piston 404, the lower surface of the piston 404 is fixedly connected with a pull rod 405, the inner wall of the water cooling ring 401 is fixedly connected with a bottom cover 406, the upper surface of the bottom cover 406 is provided with a through hole 407, water can be sucked into the water cooling ring 401 through the arrangement of the pull rod 405 and the piston 404, and further consumables in the spray pipe 302 can be rapidly cooled; the surface of the shell 301 is fixedly connected with a water storage tank 9, the upper surface of the water storage tank 9 is fixedly connected with a communicating pipe 10, one end, far away from the water storage tank 9, of the communicating pipe 10 is inserted into the upper surface of the connecting vertical pipe 402 and penetrates through the inner top wall of the connecting vertical pipe 402, and a water source can be provided for the water cooling mechanism 4 by arranging the water storage tank 9 and the communicating pipe 10; water-cooling ring 401's fixed surface is connected with gag lever post 11, shell 301's inner wall offer with the spout of gag lever post 11 looks adaptation, the surface of gag lever post 11 and the inner wall sliding connection of spout, water-cooling ring 401's surface passes through gag lever post 11 and shell 301's inner wall sliding connection, through setting up gag lever post 11, can be fast with connecting riser 402 and joint interface 303 joint.

The electric push rod 7 is electrically connected with the machine body 1, and the electric push rod 7 is electrically connected with the machine body 1, so that power can be supplied to the electric push rod 7, and the electric push rod 7 is controlled by a control system of the machine body 1; the collecting mechanism 5 comprises a collecting shell 501 in sliding connection with the surface of the material spraying pipe 302, a collecting box 502 is in sliding connection with the inner bottom wall of the collecting shell 501, a spring 503 is fixedly connected to one side of the collecting box 502, one end, far away from the collecting box 502, of the spring 503 is fixedly connected with the inner wall of the collecting shell 501, the end face, with an opening, of the collecting box 502 forms a 30-degree included angle with the horizontal plane, the collecting box 502 can be ejected through the arrangement of the spring 503, and consumable materials which are drawn and dripped can be collected through the arrangement of the collecting box 502; the bottom end of the pull rod 405 penetrates through the lower surface of the bottom cover 406 and is fixedly connected with the upper surface of the collecting shell 501, and the water cooling mechanism 4 and the collecting mechanism 5 can synchronously operate by fixedly connecting the pull rod 405 and the collecting shell 501, so that the wire drawing prevention effect is improved.

Wherein, a stirring mechanism 12 is arranged obliquely above the spray head 3, a feeding pipe 13 is fixedly sleeved outside the stirring mechanism 12, the bottom of the feeding pipe 13 is communicated and fixed with a spray pipe 302, an air cylinder 14 is fixedly connected to the left side of the stirring mechanism 12, an air inlet pipe 15 is arranged below the air cylinder 14, the other end of the air inlet pipe 15 is inserted into the upper surface of a connecting vertical pipe 402 and penetrates through the inner top wall of the connecting vertical pipe 402, a heating pipe 16 is sleeved between the spray pipe 302 and a water cooling ring 401, the stirring mechanism 12 comprises a push rod 1201, a first blade 1202, a second blade 1203, a gear 1204, a first bevel gear 1205, a second bevel gear 1206, a flexible shaft 1207, a shaft bracket 1208 and a spiral blade 1209, the left end of the push rod 1201 is fixedly connected with the first blade 1202 through the feeding pipe 13 by arranging the stirring mechanism 12, the left end of the push rod 1201 penetrates through the feeding pipe 13 and is horizontally connected with the air cylinder 14, the second blade 1203 is fixedly connected with the right end of the feeding pipe 13, the two blades are matched, a push rod 1201 is driven by arranging an air cylinder 14, the first blade 1202 and the second blade 1203 which are fixedly connected on the push rod 1201 are matched with each other to cut up blocky materials, a gear 1204 is meshed at the lower end of the push rod 1201, the gear 1204 is axially connected with a first bevel gear 1205, the first bevel gear 1205 is meshed with a second bevel gear 1206, the second bevel gear 1206 is axially fixedly connected with a flexible shaft 1207, a shaft bracket 1208 is fixedly arranged on the inner wall of the feeding pipe 13, the flexible shaft 1207 is rotatably connected with the shaft bracket 1208, a spiral blade 1209 is arranged on the outer wall of the flexible shaft 1207, the pipe diameter of a spraying pipe 302 positioned between a heating pipe 12016 and a collecting box 502 at the bottom of the spray head 3 is gradually reduced, the materials are fully stirred by arranging the flexible shaft 1207, the materials are further refined by arranging the spiral blade 1209, the heating pipe 16 is arranged to fully melt the refined materials with the raw materials, the materials can be uniformly fused together before being discharged out of the spray head by utilizing the gradual reduction of the pipe diameter of the spray pipe 302.

The working principle of the invention is as follows: when the 3D printer is used, a user firstly places the printer by using the base 2, then opens the printer body 1 for printing, when a point needs to be moved, a control system of the printer body 1 controls the electric push rod 7 (with the model of SXL 003) to work, the output end of the electric push rod 7 moves downwards to push the slide rod 8 to move downwards, the slide rod 8 drives the collecting mechanism 5 to move downwards, when the collecting mechanism 5 moves downwards to a certain position, the spring 503 pops the collecting boxes 502, the two collecting boxes 502 are positioned at the bottom end of the material spraying pipe 302 to collect dropped materials, in the process, the collecting mechanism 5 moves downwards to drive the pull rod 405 to move downwards, the pull rod 405 drives the piston 404 to move downwards, further, water in the water storage tank 9 enters the water cooling ring 401 through the communicating pipe 10 and the connecting vertical pipe 402, the materials in the material spraying pipe 302 are rapidly cooled, subsequent high-temperature materials are prevented from continuously flowing downwards to cause waste, when the printing needs to be continuously, the output of electric putter 7 upwards removes, will collect mechanism 5 and reset, and press the water in the water-cooling ring 401 back to in the water storage box 9 again, thereby make this 3D printer solve the problem that the wire drawing appears when the shower nozzle moves the point, at this in-process, take out the material in collecting the box and place into rabbling mechanism 12 through conveying pipe 13, first blade 1202 and second blade 1203 mutually support and cut up blocky material, fully stir the material through setting up flexible axle 1207, further refine the material through setting up helical blade 1209, make the material that refines and raw materials fully fuse together through setting up heating pipe 16, thereby make the material recycle once more in the collection box in this 3D printer.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a 3D printer, includes organism (1), its characterized in that: the lower surface of the machine body (1) is fixedly connected with a base (2), and the lower surface of the machine body (1) is fixedly connected with a spray head (3);

the sprayer (3) comprises a shell (301) fixedly connected with the lower surface of the machine body (1), the upper surface of the shell (301) is provided with a pipe hole, the inner wall of the pipe hole is fixedly connected with a spraying pipe (302), and the inner top wall of the shell (301) is provided with a clamping opening (303);

the inner wall sliding connection of shell (301) has water cooling mechanism (4), the sliding surface connection that spouts material pipe (302) has collection mechanism (5), the fixed surface of shell (301) is connected with fixed plate (6), the quantity of fixed plate (6) is two, two fixed plate (6) circumference equidistance sets up the surface at shell (301), the fixed surface of fixed plate (6) is connected with electric putter (7), the output fixedly connected with slide bar (8) of electric putter (7), the one end of electric putter (7) output is kept away from in slide bar (8) is connected with the fixed surface who collects mechanism (5), the rectangular channel with slide bar (8) looks adaptation is seted up on the surface of shell (301).

2. A 3D printer according to claim 1, characterized in that: the water-cooling mechanism (4) comprises a water-cooling ring (401) which is in sliding connection with the inner wall of the shell (301), the upper surface of the water-cooling ring (401) is fixedly connected with a connecting vertical pipe (402), the surface of the connecting vertical pipe (402) is fixedly connected with a rubber ring (403) and is clamped with the inner wall of the clamping port (303) through the rubber ring (403), the inner wall of the water-cooling ring (401) is in sliding connection with a piston (404), the lower surface of the piston (404) is fixedly connected with a pull rod (405), the inner wall of the water-cooling ring (401) is fixedly connected with a bottom cover (406), and a through hole (407) is formed in the upper surface of the bottom cover (406).

3. A 3D printer according to claim 2, characterized in that: the surface fixed connection of shell (301) has water storage box (9), the last fixed surface of water storage box (9) is connected with communicating pipe (10), the one end that water storage box (9) were kept away from in communicating pipe (10) is pegged graft with the upper surface of connecting riser (402) and is run through the interior roof of connecting riser (402).

4. A 3D printer according to claim 2, characterized in that: the surface of the water cooling ring (401) is fixedly connected with a limiting rod (11), the inner wall of the shell (301) is provided with a sliding groove matched with the limiting rod (11), the surface of the limiting rod (11) is in sliding connection with the inner wall of the sliding groove, and the surface of the water cooling ring (401) is in sliding connection with the inner wall of the shell (301) through the limiting rod (11).

5. A 3D printer according to claim 1, characterized in that: the electric push rod (7) is electrically connected with the machine body (1).

6. A 3D printer according to claim 1, characterized in that: collect mechanism (5) including with spout material pipe (302) surface sliding connection's collection shell (501), the interior diapire sliding connection who collects shell (501) has collection box (502), one side fixedly connected with spring (503) of collecting box (502), the one end of collecting box (502) and the inner wall fixed connection who collects shell (501) are kept away from in spring (503), it becomes 30 degrees contained angles to collect box (502) to be open-ended terminal surface and horizontal plane.

7. A 3D printer according to claim 2, characterized in that: the bottom end of the pull rod (405) penetrates through the lower surface of the bottom cover (406) and is fixedly connected with the upper surface of the collecting shell (501).

8. A 3D printer according to claim 1, characterized in that: a stirring mechanism (12) is arranged obliquely above the spray head (3), a feeding pipe (13) is fixedly sleeved outside the stirring mechanism (12), the bottom of the feeding pipe (13) is communicated and fixed with a spray pipe (302), an air cylinder (14) is fixedly connected to the left side of the stirring mechanism (12), an air inlet pipe (15) is arranged below the air cylinder (14), the other end of the air inlet pipe (15) is inserted into the upper surface of a connecting vertical pipe (402) and penetrates through the inner top wall of the connecting vertical pipe (402), a heating pipe (16) is sleeved between the spray pipe (302) and a water cooling ring (401), the stirring mechanism (12) comprises a push rod (1201), a first blade (1202), a second blade (1203), a gear (1204), a first bevel gear (1205), a second bevel gear (1206), a flexible shaft (1207), a shaft bracket (1208) and a spiral blade (1209), and the left end of the push rod (13) penetrates through the feeding pipe (13) and is fixedly connected with the air cylinder (14) in the horizontal direction, push rod (1201) right-hand member fixedly connected with first blade (1202), second blade (1203) and conveying pipe (13) right-hand member fixed connection, the meshing of push rod (1201) lower extreme has gear (1204), gear (1204) and first bevel gear (1205) axial connection, first bevel gear (1205) and second bevel gear (1206) intermeshing, second bevel gear (1206) and flexible axle (1207) axial fixed connection, conveying pipe (13) inner wall is fixed and is equipped with pedestal (1208), flexible axle (1207) and pedestal (1208) rotate to be connected, flexible axle (1207) outer wall is equipped with spiral blade (1209), shower nozzle (3) bottom is located spraying pipe (302) pipe diameter of heating pipe (16) and collection box (502) middle department and diminishes gradually.