CN113059791A

CN113059791A - Novel 3D printer

Info

Publication number: CN113059791A
Application number: CN202110307986.7A
Authority: CN
Inventors: 唐跃飞
Original assignee: Guangzhou Zhouzhuo Technology Co ltd
Current assignee: Guangzhou Zhouzhuo Technology Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-07-02

Abstract

The invention belongs to the technical field of printing equipment, and particularly relates to a novel 3D printer which comprises a support, a forming plate, a raw material box, a guide rail and a printing head, wherein the forming plate is arranged on the support; the printing head is communicated with the raw material box through a guide pipe, and an electromagnetic valve is fixedly connected to the guide pipe; the printing head is hinged with electric heating plates, and a feed opening is formed between the electric heating plates; a mixing dish is fixedly connected in the printing head, and a mounting plate is fixedly connected at the bottom end of the mixing dish; the mounting plate is provided with a mounting hole and a material passing hole; a worm is rotatably connected in the mounting hole; according to the invention, the computer controls the switch of the electromagnetic valve, so that the raw materials with one or more colors are extruded into the printing head, when the raw materials contact the electric heating plate, the raw materials are heated to a hot melting state, flow into the mixing vessel, are fully stirred and mixed in the mixing vessel, and then flow out from the material through hole, so that the printing work is completed, the practicability of the printer is greatly improved, and if the colors need to be changed in the printing process, the electromagnetic valve is controlled by the computer, and the raw materials are re-prepared.

Description

Novel 3D printer

Technical Field

The invention belongs to the technical field of printing equipment, and particularly relates to a novel 3D printer.

Background

A 3D printer, also known as a three-dimensional printer (3DP), is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique. The working principle of the 3D printer is basically the same as that of a common printer, printing materials are superposed layer by layer under the control of a computer, and finally, blueprints on the computer are changed into real objects. This technique is often used in the field of mold making, industrial design, etc. for making models or for direct manufacture of some products. At present, various 3D printing technologies exist, and common technologies include three-dimensional printing of bonding materials, three-dimensional printing of photocuring, three-dimensional printing of melting materials, and the like. The technology that adopts in the 3D printing field, no matter be SLS, SLA, FDM or other technique, almost all 3D printers all print the monochromatic, can't realize the true colour outward appearance of model, and then satisfy the higher requirement of user. With the development of 3D printing technology, the continuous maturity of 3D printing technology will push the realization of a great leap including new material technology, smart manufacturing technology and stack manufacturing technology. 3D printing can directly generate objects in any shape from computer graphic data without machining or molds, thereby greatly shortening the production period of products and improving the productivity. Most of the existing 3D printers can only print out a single-color model. The existing 3D printer can only form in a single color, and the product is colored again after being manufactured, so that the process is complicated, and the precision of the formed product is partially influenced in the coloring process.

Some technical solutions related to printing apparatuses also appear in the prior art, for example, a chinese patent with application number 2018113618405 discloses a novel full-color 3D printer, which includes a base and a support below the base, and is characterized in that: the symmetry is equipped with the Y axle on the base, be equipped with the Y axle feed box of motion with it that cooperatees on the Y axle, be equipped with the Z axle of following its removal on the Y axle feed box, be equipped with the Z axle feed box of motion with it that cooperatees on the Z axle, be equipped with the X axle of following its removal on the Z axle feed box, be equipped with the X axle feed box of motion with it that cooperatees on the X axle, be equipped with the backup pad on the X axle feed box, be equipped with first color workbin, second color workbin, third color workbin and fourth color workbin in the backup pad, the X axle feed box is equipped with printing device. Compared with the prior art, the invention has the advantages that: the full-color quality of 3D printer, the undamaged taking off of product of completion provide a novel full-color 3D printer.

Among the above-mentioned technique, the 3D printer can only be ejected out from beating printer head with the raw materials of different colours respectively, can't obtain new colour with the raw materials mixture of several kinds of colours, can't reach the effect of mixing colours at will, has certain limitation, needs constantly change the colour of raw materials according to the design content, has caused very big inconvenience for the printing work.

Therefore, the invention provides a novel 3D printer.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides a novel 3D printer which solves the problems that the 3D printer can only eject raw materials with different colors from a printing head respectively, the raw materials with several colors cannot be mixed to obtain a new color, the effect of randomly mixing colors cannot be achieved, certain limitations are caused, the colors of the raw materials need to be continuously changed according to design contents, and great inconvenience is caused to printing work.

The technical scheme adopted by the invention for solving the technical problems is as follows: the novel 3D printer comprises a support; the lower end of the bracket is fixedly connected with a forming plate; a raw material box is fixedly connected to one side of the support; a guide rail is connected in the bracket in a sliding way; the guide rail is connected with a printing head in a sliding manner; the printing head is communicated with the raw material box through three guide pipes; one end of the conduit close to the printing head is fixedly connected with an electromagnetic valve; the position, close to the guide pipe, in the printing head is hinged with electric heating plates, and a feed opening is formed between the electric heating plates; a mixing vessel is fixedly connected in the printing head below the feed opening through a seat plate; the bottom end of the mixing dish is fixedly connected with a mounting plate; the mounting plate is provided with a mounting hole and a material passing hole; a worm is rotatably connected in the mounting hole and is driven to rotate by a motor; when the 3D printer works, only raw materials with different colors can be respectively ejected from the printing head by the 3D printer in the prior art, the raw materials with several colors cannot be mixed to obtain a new color, the effect of randomly mixing colors cannot be achieved, certain limitation is realized, the colors of the raw materials need to be continuously changed according to design contents, and great inconvenience is caused to printing work; at the moment, the raw materials of three colors, namely red, yellow and blue, can be stored by the raw material box, theoretically, any color can be prepared according to the three colors, the computer controls the switch of the electromagnetic valve to extrude the raw material with one or more colors into the printing head, when the raw materials contact the electric heating plate, the raw materials are heated to a hot melting state and then enter the mixing vessel through the material feeding port, fully stirring in a mixing vessel, so that the raw materials with different colors are uniformly mixed and then flow out from the material through hole to finish the printing work, the mode not only can directly use three primary colors, but also can mix a plurality of colors to obtain new colors, thereby greatly improving the practicability of the printer, meanwhile, when the color needs to be changed in the printing process, the computer is only needed to control the electromagnetic valve, and the color can be allocated again, so that the continuity of the printing work is improved, and the printing process is convenient and fast.

Preferably, the side wall of the printing head below the electric heating plate is fixedly connected with an air bag, and the electric heating plate is pressed against the air bag under the action of gravity; an air guide cavity is formed in the side wall of the mixing vessel and is communicated with the air bag through a first air pipe; the inner surface of the mixing vessel is provided with a spray hole close to the air guide cavity, and the spray hole is communicated with the air guide cavity; the during operation, the printer finishes using, remain on mixing the ware internal surface after surplus raw materials solidifies in the mixed ware, influence next work, when reuse printer, can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, the electric plate extrusion gasbag simultaneously, gas in the gasbag gets into the air guide cavity through a trachea, and then spouts from the orifice, the raw materials of remaining in mixing the ware of clearance, prevent that the raw materials from piling up too much influence printer operating mass in mixing the ware.

Preferably, the plurality of spray holes are formed and uniformly arranged on the inner surface of the mixing dish; the during operation can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, and electric plate extrusion gasbag simultaneously, and gas in the gasbag gets into the air guide cavity through a trachea, and then spouts from the orifice, clears up the last raw materials of remaining in mixing the ware, through a plurality of orifices that set up, has increased clearance area, has improved the clearance effect.

Preferably, one end of the electric heating plate close to the material through hole is hinged with a connecting rod; the lower end of the connecting rod is hinged with a material lifting block, and the material lifting block is close to the inner surface of the mixing vessel; the during operation can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, and then drives the material piece through the connecting rod and scrape at mixed ware internal surface, further clears up the raw materials that last time remained in mixing the ware, has improved the practicality of printer.

Preferably, the lower end of the material lifting block is fixedly connected with an electric heating wire, and the tail end of the electric heating wire slightly tilts; when the electric heating device works, the connecting rod drives the material lifting block to scrape on the inner surface of the mixing dish, meanwhile, the electric heating wire heats the raw material remained in the mixing dish last time, the raw material is melted and flows out through the material passing hole, the tail end of the electric heating wire slightly tilts, the guiding effect is achieved, and the electric heating wire is prevented from being broken in the contact process.

Preferably, one side of the material lifting block, which is close to the mixing vessel, is provided with a scraping tooth, the scraping tooth is crescent, and the tip of the scraping tooth faces downwards; the during operation can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, and then drives the material piece through the connecting rod and scrape at mixed ware internal surface, scrapes the tooth through a plurality of that set up, has further improved the clearance effect, prevents that partial remaining raw materials hardness is too big and can't clear away.

Preferably, one side of the material lifting block, which is close to the scraping teeth, is provided with a first sliding groove; a first sliding block is connected in the first sliding groove in a sliding manner; the scraping teeth are fixedly connected with the first sliding block through the guide rod; an elastic strip is fixedly connected between the adjacent guide rods; the during operation can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, and then drives the play material piece through the connecting rod and scrapes at mixed ware internal surface, because of the resistance effect, a slider drive of below is scraped the tooth and is slided to the top for all scrape the tooth and all slide the top and extrude together, when play material piece and electric plate separation, scrape quick resilience and vibration of tooth under the effect of elastic strip, prevent that the raw materials adhesion is scraping on the tooth, further improved the practicality of printer.

Preferably, the scraping teeth comprise a bottom plate and floating teeth, and the floating teeth are of hollow structures; a first spring is fixedly connected between the bottom plate and the floating teeth; a sliding rod is fixedly connected to one side, close to the floating teeth, of the bottom plate, and the sliding rod extends into the floating teeth and is connected with the floating teeth in a sliding mode; one end of the sliding rod, which is positioned in the floating teeth, is fixedly connected with a supporting block; the floating teeth are provided with sliding holes; a thimble is fixedly connected to one side of the support block, which is far away from the slide rod, and the thimble is connected in the slide hole in a sliding manner; during operation, when floating tooth and mixed ware internal surface contact, spring shrink No. one, the slide bar drives the thimble roll-off in the slide opening through the tray, and the thimble scrapes the raw materials that last time remained in mixing the ware, has further improved the clearance effect.

Preferably, a second sliding groove is formed in the electric heating plate; a second sliding block is connected in the second sliding groove in a sliding manner; one end of the second sliding chute is communicated with the air bag through a second air pipe, and a second spring is fixedly connected between the other end of the second sliding chute and the second sliding block; the during operation can extrude the electric plate and make it rotate when the raw materials contacts the electric plate, and the electric plate extrudees the gasbag simultaneously, and gas in the gasbag gets into No. two spouts through No. two trachea, and then promotes No. two sliders and vibrate in No. two spouts to drive the electric plate vibration, improved the mobile effect of raw materials on the electric plate surface, play the effect of water conservancy diversion, make the raw materials flow from leading to the material mouth smoothly.

Preferably, a deflector rod is hinged to the position, close to the second air pipe, of the upper side of the electric heating plate through a torsion spring, one end of the deflector rod is located outside the electric heating plate, and the other end of the deflector rod extends into the second sliding groove; one end of the deflector rod, which is positioned outside the electric heating plate, is hinged with a bearing rod; a flow guide needle is fixedly connected to the outer side of the bearing rod; during operation, when No. two sliders kick-backed under the effect of spring force, promote the one end of driving lever, and then the driving lever rotates, drives the receiving rod and slides on the electric plate surface to the raw materials is stirred to the water conservancy diversion needle, has further improved the water conservancy diversion effect, makes the raw materials flow from logical material mouthful smoothly.

The invention has the following beneficial effects:

1. the novel 3D printer can store raw materials of three colors, namely red, yellow and blue, through the raw material box, theoretically, any color can be prepared according to the three colors, the raw materials of one color or a plurality of colors are extruded into the printing head through the switch of the electromagnetic valve controlled by the computer, when the raw materials contact the electric heating plate, the raw materials are heated to a hot melting state and then enter the mixing vessel through the material through hole, and are fully stirred in the mixing vessel, so that the raw materials of different colors are uniformly mixed and then flow out from the material through hole, the printing work is completed, the mode not only can directly use three primary colors, but also can mix a plurality of colors to obtain new colors, the practicability of the printer is greatly improved, and meanwhile, when the colors need to be changed in the printing process, the electromagnetic valve is only needed to be controlled by the computer, the electromagnetic valve is newly prepared, and the continuity of the printing work is improved, is convenient and quick.

2. According to the novel 3D printer, after the printer is used, the residual raw materials in the mixing dish are solidified and remain on the inner surface of the mixing dish to influence the next work, when the printer is used again, the raw materials contact with the electric heating plate, the electric heating plate can extrude the electric heating plate to rotate, meanwhile, the electric heating plate extrudes the air bag, air in the air bag enters the air guide cavity through the first air pipe and then is ejected from the spray hole, the raw materials remaining in the mixing dish are cleaned, and the phenomenon that the raw materials are excessively accumulated in the mixing dish to influence the work quality of the printer is avoided.

3. According to the novel 3D printer, when the raw materials contact the electric heating plate, the electric heating plate can be extruded and rotated, the electric heating plate extrudes the air bag, air in the air bag enters the air guide cavity through the first air pipe and is further sprayed out of the spray holes, the raw materials remained in the mixing vessel at the last time are cleaned, the cleaning area is increased through the plurality of spray holes, and the cleaning effect is improved.

Drawings

The invention will be further explained with reference to the drawings.

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

FIG. 2 is a cross-sectional view of a printhead of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a cross-sectional view of a starter block according to the present invention;

FIG. 6 is a schematic view of the construction of the scraping tooth of the present invention;

FIG. 7 is a sectional view of an electric heating plate according to the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at C;

in the figure: 1. a support; 2. forming a plate; 3. a raw material tank; 4. a guide rail; 5. a print head; 6. a conduit; 7. an electromagnetic valve; 8. an electric hot plate; 9. a material inlet is formed; 10. a seat plate; 11. a mixing vessel; 12. mounting a plate; 13. mounting holes; 14. a feed through hole; 15. a worm; 16. an air bag; 17. a gas conducting cavity; 18. a first air pipe; 19. spraying a hole; 20. a connecting rod; 21. a material taking block; 22. an electric heating wire; 23. scraping teeth; 24. a first chute; 25. a first sliding block; 26. a guide bar; 27. an elastic strip; 231. a base plate; 232. a floating tooth; 233. a first spring; 234. a slide bar; 235. a support block; 236. a slide hole; 237. a thimble; 28. a second chute; 29. a second sliding block; 30. a second air pipe; 31. a second spring; 32. a deflector rod; 33. a bearing rod; 34. a guide needle.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 8, the novel 3D printer of the present invention includes a support 1; the lower end of the bracket 1 is fixedly connected with a forming plate 2; a raw material box 3 is fixedly connected to one side of the support 1; a guide rail 4 is connected in the bracket 1 in a sliding way; the printing head 5 is connected on the guide rail 4 in a sliding way; the printing head 5 is communicated with the raw material box 3 through three guide pipes 6; one end of the conduit 6 close to the printing head 5 is fixedly connected with an electromagnetic valve 7; the position of the printing head 5 close to the guide pipe 6 is hinged with electric heating plates 8, and a feed-through opening 9 is formed between the electric heating plates 8; a mixing pan 11 is fixedly connected in the printing head 5 below the feed opening 9 through a seat plate 10; the bottom end of the mixing vessel 11 is fixedly connected with an installation plate 12; the mounting plate 12 is provided with a mounting hole 13 and a material passing hole 14; a worm 15 is rotatably connected in the mounting hole 13, and the worm 15 is driven by a motor to rotate; when the 3D printer works, only raw materials with different colors can be respectively ejected from the printing head 5 by the 3D printer in the prior art, the raw materials with several colors cannot be mixed to obtain a new color, the effect of randomly mixing colors cannot be achieved, certain limitation is realized, the colors of the raw materials need to be continuously changed according to design contents, and great inconvenience is caused to printing work; at the moment, the raw material box 3 can store the raw materials of three colors, namely red, yellow and blue, any color can be blended theoretically according to the three colors, the raw materials of one or more colors are extruded into the printing head 5 by controlling the switch of the electromagnetic valve 7 through the computer, when the raw materials contact the electric heating plate 8, the raw materials are heated to a hot melting state and then enter the mixing vessel 11 through the feed port 9, and are fully stirred in the mixing vessel 11, so that the raw materials of different colors are uniformly mixed and then flow out through the feed port 14, the printing work is completed, the mode not only can directly use three primary colors, but also can mix a plurality of colors to obtain new colors, the practicability of the printer is greatly improved, and meanwhile, when the colors need to be changed in the printing process, the electromagnetic valve 7 is controlled by the computer only to be blended again, the continuity of the printing work is improved, is convenient and quick.

As an embodiment of the present invention, an air bag 16 is fixedly connected to the side wall of the printing head 5 below the electric heating plate 8, and the electric heating plate 8 is pressed against the air bag 16 under the action of gravity; an air guide cavity 17 is formed in the side wall of the mixing vessel 11, and the air guide cavity 17 is communicated with the air bag 16 through a first air pipe 18; a spray hole 19 is formed in the inner surface of the mixing vessel 11 at a position close to the air guide cavity 17, and the spray hole 19 is communicated with the air guide cavity 17; during operation, the printer finishes using, remain on mixing the internal surface of ware 11 after remaining raw materials solidify in the mixed ware 11, influence next work, when reuse printer, the raw materials can extrude electric plate 8 and make it rotate when contacting electric plate 8, electric plate 8 extrudees gasbag 16 simultaneously, gas in the gasbag 16 gets into air guide cavity 17 through a trachea 18, and then spout from orifice 19, clear up the raw materials of remaining in mixing ware 11, prevent that the raw materials from piling up too much influence printer operating mass in mixing ware 11.

As an embodiment of the present invention, the plurality of spray holes 19 are opened and uniformly arranged on the inner surface of the mixing dish 11; the during operation can extrude electric plate 8 and make it rotate when the raw materials contacts electric plate 8, and electric plate 8 extrudees gasbag 16 simultaneously, and the gas in the gasbag 16 gets into air guide cavity 17 through an trachea 18, and then spouts from orifice 19, clears up the last raw materials of remaining in mixing ware 11, through a plurality of orifices 19 that set up, has increased the clearance area, has improved the clearance effect.

As an embodiment of the invention, one end of the electric heating plate 8 close to the material through opening 9 is hinged with a connecting rod 20; the lower end of the connecting rod 20 is hinged with a material lifting block 21, and the material lifting block 21 is close to the inner surface of the mixing dish 11; during operation, can extrude electric plate 8 and make it rotate when the raw materials contacts electric plate 8, and then drive play material piece 21 through connecting rod 20 and scrape at mixed dish 11 internal surface, further clear up the last raw materials that remain in mixed dish 11, improved the practicality of printer.

As an embodiment of the present invention, the lower end of the material lifting block 21 is fixedly connected with a heating wire 22, and the tail end of the heating wire 22 slightly tilts; during operation, the connecting rod 20 drives the material lifting block 21 to scrape on the inner surface of the mixing dish 11, meanwhile, the heating wire 22 heats the raw material remained in the mixing dish 11 last time, the raw material is melted and flows out through the material passing hole 14, the tail end of the heating wire 22 slightly tilts, the guiding effect is achieved, and the heating wire 22 is prevented from being broken in the contact process.

As an embodiment of the invention, a scraping tooth 23 is arranged on one side of the material lifting block 21 close to the mixing dish 11, the scraping tooth 23 is crescent-shaped, and the tip of the scraping tooth 23 faces downwards; during operation, can extrude electric plate 8 and make it rotate when the raw materials contacts electric plate 8, and then drive play material piece 21 through connecting rod 20 and scrape at mixed dish 11 internal surface, scrape tooth 23 through a plurality of that set up, further improved the clearance effect, prevent that partial remaining raw materials hardness is too big and can't clear away.

As an embodiment of the invention, a first chute 24 is formed on one side of the material lifting block 21 close to the scraping teeth 23; a first sliding block 25 is connected in the first sliding groove 24 in a sliding manner; the scraping teeth 23 are fixedly connected with a first sliding block 25 through a guide rod 26; an elastic strip 27 is fixedly connected between the adjacent guide rods 26; the during operation, can extrude electric plate 8 and make it rotate when the raw materials contacts electric plate 8, and then drive play material piece 21 through connecting rod 20 and scrape at mixed dish 11 internal surface, because of the resistance effect, a slider 25 of below drives scrapes tooth 23 and slides upwards, make all scrape tooth 23 and all slide the top and extrude together, when play material piece 21 and electric plate 8 separation, scrape tooth 23 and kick-back fast and vibration under the effect of elastic strip 27, prevent that the raw materials adhesion is on scraping tooth 23, the practicality of printer has further been improved.

As an embodiment of the present invention, the scraping tooth 23 includes a bottom plate 231 and a floating tooth 232, and the floating tooth 232 is a hollow structure; a first spring 233 is fixedly connected between the bottom plate 231 and the floating teeth 232; a sliding rod 234 is fixedly connected to one side of the bottom plate 231 close to the floating tooth 232, and the sliding rod 234 extends into the floating tooth 232 and is connected with the floating tooth 232 in a sliding manner; a supporting block 235 is fixedly connected to one end of the sliding rod 234, which is positioned in the floating tooth 232; a sliding hole 236 is formed on the floating tooth 232; a thimble 237 is fixedly connected to one side of the supporting block 235 far away from the sliding rod 234, and the thimble 237 is slidably connected to the sliding hole 236; in operation, when floating tooth 232 contacts the inner surface of mixing bowl 11, spring 233 contracts, slide rod 234 drives thimble 237 to slide out of slide hole 236 via support 235, and thimble 237 scrapes the raw material left in mixing bowl 11 last time, further improving the cleaning effect.

As an embodiment of the present invention, a second sliding groove 28 is formed in the electric heating plate 8; a second sliding block 29 is connected in the second sliding groove 28 in a sliding manner; one end of the second sliding chute 28 is communicated with the air bag 16 through a second air pipe 30, and a second spring 31 is fixedly connected between the other end of the second sliding chute and the second sliding block 29; the during operation can extrude electric plate 8 and make it rotate when the raw materials contacts electric plate 8, and electric plate 8 extrudes gasbag 16 simultaneously, and gas in the gasbag 16 gets into No. two spouts 28 through No. two trachea 30, and then promotes No. two sliders 29 and vibrate in No. two spouts 28 to drive the vibration of electric plate 8, improved the mobile effect of raw materials on electric plate 8 surface, play the effect of water conservancy diversion, make the raw materials flow from logical material mouth 9 smoothly.

As an embodiment of the present invention, a shift lever 32 is hinged to a position on the upper side of the electric heating plate 8, which is close to the second air pipe 30, through a torsion spring, and one end of the shift lever 32 is located outside the electric heating plate 8, and the other end extends into the second sliding groove 28; one end of the driving lever 32, which is positioned outside the electric heating plate 8, is hinged with a bearing rod 33; a flow guide needle 34 is fixedly connected to the outer side of the bearing rod 33; during operation, when the second sliding block 29 rebounds under the action of the spring force, one end of the shifting lever 32 is pushed, and then the shifting lever 32 rotates to drive the receiving rod 33 to slide on the surface of the electric hot plate 8, so that the guide needle 34 shifts the raw material, the guide effect is further improved, and the raw material smoothly flows out from the material inlet 9.

During operation, raw materials of three colors, namely red, yellow and blue, can be stored in the raw material box 3, theoretically, any color can be prepared according to the three colors, the raw materials of one or more colors are extruded into the printing head 5 by controlling the switch of the electromagnetic valve 7 through the computer, when the raw materials contact the electric heating plate 8, the raw materials are heated to a hot melting state and then enter the mixing vessel 11 through the material passing hole 9, and are fully stirred in the mixing vessel 11, so that the raw materials of different colors are uniformly mixed and then flow out from the material passing hole 14, the printing operation is completed, the mode not only can directly use three primary colors, but also can mix several colors to obtain new colors, the practicability of the printer is greatly improved, and meanwhile, when the colors need to be changed in the printing process, the electromagnetic valve 7 is only needed to be controlled by the computer, the preparation can be carried out again, and the continuity of the printing operation is improved, the operation is convenient and fast; after the printer is used, the residual raw materials in the mixing dish 11 are solidified and remain on the inner surface of the mixing dish 11 to influence the next work, when the printer is used again, the raw materials contact with the electric heating plate 8, the electric heating plate 8 is extruded and rotates, meanwhile, the electric heating plate 8 extrudes the air bag 16, air in the air bag 16 enters the air guide cavity 17 through the first air pipe 18 and then is ejected out of the spray hole 19, the raw materials remained in the mixing dish 11 are cleaned, and the phenomenon that the raw materials are excessively accumulated in the mixing dish 11 to influence the working quality of the printer is prevented; when the raw materials contact the electric heating plate 8, the electric heating plate 8 is extruded and rotated, meanwhile, the air bag 16 is extruded by the electric heating plate 8, air in the air bag 16 enters the air guide cavity 17 through the first air pipe 18 and is further sprayed out from the spray holes 19, the raw materials remained in the mixing vessel 11 at the last time are cleaned, the cleaning area is increased through the plurality of spray holes 19, and the cleaning effect is improved; when the raw materials contact the electric heating plate 8, the electric heating plate 8 is extruded and rotated, and then the connecting rod 20 drives the material lifting block 21 to scrape on the inner surface of the mixing dish 11, so that the raw materials remained in the mixing dish 11 at the last time are further cleaned, and the practicability of the printer is improved; the connecting rod 20 drives the material starting block 21 to scrape on the inner surface of the mixing dish 11, meanwhile, the heating wire 22 heats the raw material remained in the mixing dish 11 last time, the raw material flows out through the material passing hole 14 after being melted, the tail end of the heating wire 22 slightly tilts, the guiding effect is achieved, and the heating wire 22 is prevented from being broken in the contact process; when the raw materials contact the electric heating plate 8, the electric heating plate 8 is extruded and rotated, the connecting rod 20 drives the material lifting block 21 to scrape on the inner surface of the mixing dish 11, and the cleaning effect is further improved through the plurality of scraping teeth 23, so that part of residual raw materials are prevented from being too hard to clean; when the raw materials contact the electric heating plate 8, the electric heating plate 8 is extruded and rotated, and then the connecting rod 20 drives the material lifting block 21 to scrape on the inner surface of the mixing dish 11, due to the resistance action, the first sliding block 25 below drives the scraping teeth 23 to slide upwards, so that all the scraping teeth 23 slide upwards and are extruded together, when the material lifting block 21 is separated from the electric heating plate 8, the scraping teeth 23 quickly rebound and vibrate under the action of the elastic strip 27, the raw materials are prevented from being adhered to the scraping teeth 23, and the practicability of the printer is further improved; when the floating tooth 232 contacts with the inner surface of the mixing dish 11, the first spring 233 contracts, the slide rod 234 drives the thimble 237 to slide out of the slide hole 236 through the supporting block 235, and the thimble 237 scrapes the raw material remained in the mixing dish 11 at the last time, so that the cleaning effect is further improved; when the raw material contacts the electric heating plate 8, the electric heating plate 8 is extruded and rotated, meanwhile, the air bag 16 is extruded by the electric heating plate 8, the air in the air bag 16 enters the second sliding groove 28 through the second air pipe 30, and then the second sliding block 29 is pushed to vibrate in the second sliding groove 28, so that the electric heating plate 8 is driven to vibrate, the flowing effect of the raw material on the surface of the electric heating plate 8 is improved, the flow guiding effect is achieved, and the raw material smoothly flows out from the material through hole 9; when the second sliding block 29 rebounds under the action of the spring force, one end of the shifting lever 32 is pushed, and then the shifting lever 32 rotates to drive the bearing rod 33 to slide on the surface of the electric hot plate 8, so that the guide needle 34 stirs the raw material, the guide effect is further improved, and the raw material smoothly flows out from the material passing port 9.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel 3D printer which characterized in that: comprises a bracket (1); the lower end of the bracket (1) is fixedly connected with a forming plate (2); a raw material box (3) is fixedly connected to one side of the support (1); a guide rail (4) is connected in the bracket (1) in a sliding way; the guide rail (4) is connected with a printing head (5) in a sliding way; the printing head (5) is communicated with the raw material box (3) through three guide pipes (6); one end of the conduit (6) close to the printing head (5) is fixedly connected with an electromagnetic valve (7); electric heating plates (8) are hinged to the positions, close to the guide pipe (6), in the printing head (5), and material passing ports (9) are formed between the electric heating plates (8); a mixing dish (11) is fixedly connected in the printing head (5) below the feed opening (9) through a seat plate (10); the bottom end of the mixing vessel (11) is fixedly connected with an installation plate (12); the mounting plate (12) is provided with a mounting hole (13) and a material passing hole (14); a worm (15) is rotatably connected in the mounting hole (13), and the worm (15) is driven to rotate by a motor.

2. The novel 3D printer of claim 1, wherein: an air bag (16) is fixedly connected to the side wall of the printing head (5) below the electric heating plate (8), and the electric heating plate (8) is pressed against the air bag (16) under the action of gravity; an air guide cavity (17) is formed in the side wall of the mixing vessel (11), and the air guide cavity (17) is communicated with the air bag (16) through a first air pipe (18); the inner surface of the mixing dish (11) is provided with a spray hole (19) at a position close to the air guide cavity (17), and the spray hole (19) is communicated with the air guide cavity (17).

3. The novel 3D printer of claim 2, wherein: the plurality of spray holes (19) are formed and are uniformly distributed on the inner surface of the mixing dish (11).

4. The novel 3D printer of claim 1, wherein: one end of the electric heating plate (8) close to the material through hole (9) is hinged with a connecting rod (20); the lower end of the connecting rod (20) is hinged with a material lifting block (21), and the material lifting block (21) is close to the inner surface of the mixing dish (11).

5. The novel 3D printer of claim 4, wherein: the lower end of the material lifting block (21) is fixedly connected with an electric heating wire (22), and the tail end of the electric heating wire (22) is slightly tilted.

6. The novel 3D printer of claim 4, wherein: one side of the material lifting block (21) close to the mixing dish (11) is provided with a scraping tooth (23), the scraping tooth (23) is crescent, and the tip of the scraping tooth (23) faces downwards.

7. The novel 3D printer of claim 6, wherein: one side of the material lifting block (21) close to the scraping teeth (23) is provided with a first sliding groove (24); a first sliding block (25) is connected in the first sliding groove (24) in a sliding manner; the scraping teeth (23) are fixedly connected with a first sliding block (25) through a guide rod (26); and an elastic strip (27) is fixedly connected between the adjacent guide rods (26).

8. The novel 3D printer of claim 7, wherein: the scraping teeth (23) comprise a bottom plate (231) and floating teeth (232), and the floating teeth (232) are of hollow structures; a first spring (233) is fixedly connected between the bottom plate (231) and the floating teeth (232); a sliding rod (234) is fixedly connected to one side, close to the floating tooth (232), of the bottom plate (231), and the sliding rod (234) extends into the floating tooth (232) and is in sliding connection with the floating tooth; one end of the sliding rod (234) positioned in the floating tooth (232) is fixedly connected with a supporting block (235); a sliding hole (236) is formed in the floating tooth (232); and a thimble (237) is fixedly connected to one side of the support block (235) far away from the slide rod (234), and the thimble (237) is slidably connected in the slide hole (236).

9. The novel 3D printer of claim 1, wherein: a second sliding groove (28) is arranged in the electric heating plate (8); a second sliding block (29) is connected in the second sliding groove (28) in a sliding manner; one end of the second sliding groove (28) is communicated with the air bag (16) through a second air pipe (30), and a second spring (31) is fixedly connected between the other end of the second sliding groove and the second sliding block (29).

10. The novel 3D printer of claim 9, wherein: a deflector rod (32) is hinged to the position, close to the second air pipe (30), on the upper side of the electric heating plate (8) through a torsion spring, one end of the deflector rod (32) is located outside the electric heating plate (8), and the other end of the deflector rod extends into the second sliding groove (28); one end of the shifting lever (32) positioned outside the electric heating plate (8) is hinged with a bearing rod (33); a flow guide needle (34) is fixedly connected with the outer side of the bearing rod (33).