CN219583539U

CN219583539U - Be used for processing artificial tooth 3D printing device

Info

Publication number: CN219583539U
Application number: CN202321510349.0U
Authority: CN
Inventors: 刘豪; 彭铮; 闫珊珊
Original assignee: Beijing Hanmingda Technology Co ltd
Current assignee: Beijing Hanmingda Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-08-25
Anticipated expiration: 2033-06-13

Abstract

The utility model relates to the field of denture 3D printing technology, and provides a 3D printing device for processing dentures, which comprises a material tank, wherein the material tank is used for containing printing materials and is provided with a bottom wall, and the bottom wall is provided with a discharge hole; the bottom wall is provided with a first surface and a second surface, the first surface and the second surface are oppositely arranged, and the first surface is used for being contacted with printing materials; the distance between the first surface and the second surface gradually decreases from one end close to the side wall of the material tank to the other end, and the distance between one end of the first surface far away from the side wall of the material tank and one end of the second surface far away from the side wall of the material tank tends to zero; the distance between the second surface and the central axis of the discharge hole gradually decreases from one end close to the side wall of the material tank to the other end.

Description

Be used for processing artificial tooth 3D printing device

Technical Field

The utility model relates to the field of denture 3D printing technology, in particular to a denture 3D printing device for processing.

Background

False teeth are what is commonly called as "false teeth", and are a general term for a prosthesis which is manufactured after partial or complete actual production of upper and lower teeth in medicine. Meanwhile, with the development of technology, 3D printing technology of dentures is gradually formed.

In order to reduce the risk of collapse of printed materials on a tray containing the printed materials, the printed materials generally have a faster curing rate, so that the printed materials are easy to cure at the discharge port of the material tank, the cured materials form a certain blockage to the discharge port, the discharge rate at the discharge port is further caused to deviate from the expected rate, and the printing quality is reduced.

Disclosure of Invention

In order to improve the risk that materials are easy to solidify at the position of a discharge hole and form blockage on the discharge hole, the utility model provides a 3D printing device for processing false teeth.

The utility model provides a 3D printing device for processing false teeth, which adopts the following technical scheme:

the 3D printing device for processing the false teeth comprises a material tank, wherein the material tank is used for containing printing materials and is provided with a bottom wall, and a discharge hole is formed in the bottom wall; the bottom wall is provided with a first surface and a second surface, the first surface and the second surface are oppositely arranged, and the first surface is used for being contacted with printing materials; the distance between the first surface and the second surface gradually decreases from one end close to the side wall of the material tank to the other end, and the distance between one end of the first surface far away from the side wall of the material tank and one end of the second surface far away from the side wall of the material tank tends to zero; the distance between the second surface and the central axis of the discharge hole gradually decreases from one end close to the side wall of the material tank to the other end.

Through adopting above-mentioned technical scheme for the diapire of material jar tends to zero in the thickness of discharge gate position department, and the material that is located discharge gate department in the material jar leaves the material jar rapidly and falls under the pressure effect of self gravity and self top material, and more difficult upward shift and adhere to the second face (i.e. the outer wall of material jar), thereby reduce the material and pile up and solidification's risk in the discharge gate position department of material jar, and then reduce the risk that the solidified material led to the fact the jam to the discharge gate, in order to improve printing quality.

Optionally, a plurality of guiding gutter have been seted up to the diapire, and a plurality of the guiding gutter set up in first face, a plurality of the tip of guiding gutter all with the discharge gate intercommunication.

Through adopting above-mentioned technical scheme, utilize the guiding gutter to carry out the water conservancy diversion to the material that is attached to the diapire, reduce the accumulational risk of material at the diapire.

Optionally, the distance between the first surface and the central axis of the discharge hole gradually decreases from one end close to the side wall of the material tank to the other end.

Through adopting above-mentioned technical scheme, make to print the material and leave the material jar smoothly, reduce to print the material at the accumulational risk of material jar bottom.

Optionally, a rotating shaft and a helical blade are arranged in the material tank, the rotating shaft is arranged in an extending manner along the direction of the central axis of the discharge hole, and the helical blade is connected with the rotating shaft; the lateral wall of material jar is used for supplying helical blade keeps away from the lateral wall butt of axis of rotation, first face is used for supplying helical blade keeps away from the lateral wall butt of axis of rotation.

By adopting the technical scheme, the rotating shaft is rotated to drive the spiral blade to rotate, the printing material is sent out of the material tank under the action of the spiral blade, and the discharging speed of the printing material can be controlled by controlling the rotating speed of the rotating shaft; simultaneously, because helical blade butt in diapire and the lateral wall of material jar, consequently helical blade can scrape the printing material of material jar diapire and lateral wall when rotating, reduce the risk that printing material takes place solidification at the jar wall of material jar.

Optionally, the side wall and the bottom wall of the material tank are both internally provided with heat insulation layers.

By adopting the technical scheme, the risk that the printing material is solidified on the tank wall of the material tank is further reduced.

Optionally, the printing device further comprises a printing box, wherein the printing box is rotationally connected with a first motor and a screw rod, the screw rod is arranged in an extending mode along the height direction of the printing box, and the first motor is used for driving the screw rod to rotate; the printing box is provided with a first guide rail which is arranged in an extending mode along the height direction of the printing box; the material tank is connected with a first sliding block, and the first sliding block is connected to the first guide rail in a sliding manner; the material tank is connected with a transmission block, a transmission hole is formed in the surface of the transmission block in a penetrating mode, and the transmission hole is in threaded fit with the screw rod.

Through adopting above-mentioned technical scheme, utilize the screw drive to realize the upper and lower displacement of material jar, simple structure just can carry out stepless regulation to the height of material jar.

Optionally, the printing device further comprises a tray, wherein the tray is used for containing printing materials; the printing box is provided with a second guide rail and a third guide rail, the third guide rail is connected with the second guide rail in a sliding manner, and the tray is connected with the third guide rail in a sliding manner; the sliding direction of the third guide rail relative to the second guide rail is along the axial direction of the third guide rail, and the sliding direction of the tray relative to the third guide rail is along the axial direction of the third guide rail; the axial direction of the second guide rail is perpendicular to the circumferential direction of the third guide rail; the printing box is provided with a first driving piece and a second driving piece, the first driving piece is used for driving the third guide rail to move, and the second driving piece is used for driving the tray to move.

Through adopting above-mentioned technical scheme, utilize first driving piece and second driving piece to realize the two-dimensional removal of tray in the horizontal plane, print the in-process, realize the displacement of tray for the material jar through the displacement of control tray in the horizontal plane, therefore only need to reciprocate the material jar can to reduce the air flow speed of discharge gate position department, further improve the problem that the printing material is easy to solidify in the discharge gate position department of material jar.

Optionally, the first driving member and the second driving member are both hydraulic cylinders.

By adopting the technical scheme, the stability of the third guide rail sliding relative to the second guide rail and the stability of the tray sliding relative to the second guide rail are increased.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the bottom wall of the material tank is provided with a first surface and a second surface which are oppositely arranged, the distance between the first surface and the second surface is close to zero at one end far away from the side wall of the material tank, and the second surface is obliquely arranged, so that materials can fall down rapidly after leaving the material tank and are difficult to move upwards and adhere to the outer wall of the material tank, the risk of blockage of a discharge hole caused by solidified materials is reduced, and the printing quality is improved;

2. by obliquely arranging the second face, the risk that the printing material is attached to the inner wall and the bottom wall of the material tank is reduced;

3. the material tank can move up and down relative to the printing box through screw rod transmission, and the tray is driven to move in two dimensions relative to the printing box in the horizontal plane through the first driving piece and the second driving piece, so that the material tank only needs to move up and down, the air flow speed at the opening position of the material tank is reduced, and the problem that printing materials are solidified at the discharge hole is further improved.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a schematic view for showing the structure of the inside of the print tank.

Fig. 3 is an enlarged schematic view of fig. 2 at a section a.

Fig. 4 is a schematic diagram for illustrating the structure of the material tank.

Fig. 5 is a schematic view showing the structure of the diversion trench.

Fig. 6 is a schematic view for showing the structure of the second rail.

Reference numerals illustrate: 1. a print tank; 11. a door; 12. an observation window; 13. a connecting plate; 14. a first guide rail; 15. a screw rod; 16. a first motor; 17. a second guide rail; 18. a third guide rail; 181. a second driving member; 19. a first driving member; 2. a material tank; 21. a heat preservation layer; 22. a transmission block; 221. a transmission hole; 23. a slide block; 24. a bottom wall; 241. a first face; 242. a second face; 243. a diversion trench; 25. a discharge port; 26. a rotating shaft; 27. a helical blade; 3. and a tray.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-6.

The embodiment of the utility model discloses a 3D printing device for processing false teeth. Referring to fig. 1, a 3D printing device for processing false teeth includes a printing box 1, a material tank 2 for accommodating printing materials and a tray 3 for accommodating the printing materials, wherein the printing box 1 is arranged on a printing platform, the printing box 1 is provided with a box door 11 and an observation window 12, the box door 11 is arranged in an extending manner along the height direction of the printing box 1, and the material tank 2 and the tray 3 are both connected to the printing box 1.

Referring to fig. 2, a connection plate 13 is fixed inside the print tank 1, a first guide rail 14 is provided between the roof of the print tank 1 and the connection plate 13, the first guide rail 14 is provided to extend in the height direction of the print tank 1, and both ends of the first guide rail 14 are fixed to the roof of the print tank 1 and the connection plate 13, respectively.

Referring to fig. 2, a screw 15 is provided between the roof of the print tank 1 and the connection plate 13, the screw 15 being provided to extend in the height direction of the print tank 1, both ends of the screw 15 being rotatably connected to the roof of the print tank 1 and the connection plate 13, respectively. The top of the printing box 1 is rotatably connected with a first motor 16 on the surface deviating from the connecting plate 13, the output end of the first motor 16 is connected to the end part of the screw rod 15, and the first motor 16 is electrically connected to the control terminal.

Referring to fig. 2 and 3, the material tank 2 is located in the printing box 1, a transmission block 22 is fixedly connected to a side wall of the material tank 2, a transmission hole 221 is formed in the surface of the transmission block 22 in a penetrating manner, the transmission hole 221 is used for the screw rod 15 to penetrate, and the transmission hole 221 is in threaded fit with the screw rod 15. The side wall of the transmission block 22 is fixedly connected with a sliding block 23, and the sliding block 23 is connected to the first guide rail 14 in a sliding manner. The side wall of the transmission block 22 is integrally formed with a first sliding block 23, and the first sliding block 23 is slidably connected to the first guide rail 14.

Referring to fig. 4, the first surface 241 and the second surface 242 are each inclined with respect to the central axis of the discharge port 25, and the distance between the first surface 241 and the central axis of the discharge port 25 gradually decreases from one end near the sidewall of the material tank 2 to the other end, and the distance between the second surface 242 and the central axis of the discharge port 25 gradually decreases from one end near the sidewall of the material tank 2 to the other end. The distance between the first face 241 and the second face 242 gradually decreases from one end close to the side wall of the material tank 2 to the other end, and the distance between the end of the first face 241 away from the side wall of the material tank 2 and the end of the second face 242 away from the side wall of the material tank 2 approaches zero. By means of the design, the materials located at the discharge port 25 in the material tank 2 fall rapidly under the action of self gravity and the pressure of the materials above the self, and are difficult to move up to the outer wall of the material tank 2, namely the second face 242, so that the accumulation risk of the materials at the position of the discharge port 25 of the material tank 2 is reduced, the risk of the solidified materials blocking the discharge port 25 is reduced, and the printing quality is improved.

Referring to fig. 4, a rotary shaft 26 and a helical blade 27 are provided in the material tank 2, the rotary shaft 26 is rotatably connected to the top wall of the material tank 2, and the rotary shaft 26 is extended along the central axis direction of the discharge port 25. The helical blade 27 is fixedly connected to the rotating shaft 26, the side wall of the material tank 2 is used for being abutted against one side, away from the rotating shaft 26, of the helical blade 27, and the first surface 241 is used for being abutted against one side, away from the rotating shaft 26, of the helical blade 27. The rotating shaft 26 is utilized to drive the spiral blade 27 to rotate, so that the printed materials are stirred, the printed materials attached to the tank wall of the material tank 2 are scraped by the abutting connection of the spiral blade 27 and the tank wall, and the risk that the printed materials are fixedly connected to the tank wall of the material tank 2 is reduced.

Further, referring to fig. 4, the bottom wall 24 and the side wall of the material tank 2 are both provided with an insulation layer 21, and the insulation layer 21 is formed by filling insulation cotton so as to insulate the materials in the material tank 2 and reduce the risk of solidification of the materials in the material tank 2.

Further, referring to fig. 5, the bottom wall 24 is provided with a plurality of diversion trenches 243, the plurality of diversion trenches 243 are all opened on the first surface 241, and the ends of the plurality of diversion trenches 243 are all connected with the discharge port 25, so that the diversion trenches 243 are utilized to divert the material attached to the bottom wall 24 to the discharge port 25, and the risk of attaching the material to the bottom wall 24 is reduced.

Referring to fig. 6, the second guide rails 17 are fixedly connected to opposite side walls of the print tank 1. A third guide rail 18 is arranged in the print box 1, the axial direction of the third guide rail 18 is mutually perpendicular to the axial direction of the second guide rail 17, and the third guide rail 18 is connected with the second guide rail 17 in a sliding manner. The tray 3 is located below the material tank 2, and the tray 3 is slidably connected to the third guide rail 18.

Referring to fig. 6, a first driving member 19 is bolted to the inside of the print tank 1, and the first driving member 19 is used to drive the third rail 18 to slide with respect to the second rail 17. The third guide rail 18 is fixedly connected with a second driving member 181, and the second driving member 181 is used for driving the tray 3 to slide relative to the third guide rail 18. By means of the design, in the printing process, the tray 3 is enabled to complete two-dimensional movement in the horizontal plane, so that the material tank 2 only needs to move up and down, the air flow speed of the position of the discharge hole 25 of the material tank 2 is reduced, and the problem that printed materials are easy to solidify at the position of the discharge hole 25 of the material tank 2 is further improved.

Referring to fig. 6, the first driving member 19 and the second driving member 181 are electrically connected to the control terminal, and the first driving member 19 and the second driving member 181 are hydraulic cylinders, so as to improve the stability of movement of the tray 3. In other embodiments, the first driving member 19 and the second driving member 181 may be air cylinders.

The implementation principle of the 3D printing device for processing the false tooth provided by the embodiment of the utility model is as follows: at the time of printing, print data is input to the control terminal, and then the first motor 16 is controlled by the control terminal, so that the position of the material tank 2 in the vertical direction is controlled, and the first driving member 19 and the second driving member 181 are controlled by the control terminal, so that the movement of the tray 3 in the horizontal plane is controlled, and printing is completed.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A3D printing device for processing artificial tooth, its characterized in that: the printing material printing device comprises a material tank (2), wherein the material tank (2) is used for containing printing materials, the material tank (2) is provided with a bottom wall (24), and the bottom wall (24) is provided with a discharge hole (25); -the bottom wall (24) has a first face (241) and a second face (242), the first face (241) and the second face (242) being arranged opposite each other, the first face (241) being intended to be in contact with a printing material; the distance between the first surface (241) and the second surface (242) gradually decreases from one end close to the side wall of the material tank (2) to the other end, and the distance between one end of the first surface (241) away from the side wall of the material tank (2) and one end of the second surface (242) away from the side wall of the material tank (2) tends to zero; the distance between the second surface (242) and the central axis of the discharge hole (25) gradually decreases from one end close to the side wall of the material tank (2) to the other end.

2. A 3D printing device for processing dentures according to claim 1, wherein: the bottom wall (24) is provided with a plurality of diversion trenches (243), the diversion trenches (243) are arranged on the first surface (241), and the end parts of the diversion trenches (243) are communicated with the discharge hole (25).

3. A 3D printing device for processing dentures according to claim 1, wherein: the distance between the first surface (241) and the central axis of the discharge hole (25) gradually decreases from one end close to the side wall of the material tank (2) to the other end.

4. A 3D printing device for processing dentures according to claim 3, wherein: a rotating shaft (26) and a helical blade (27) are arranged in the material tank (2), the rotating shaft (26) extends along the direction of the central axis of the discharge hole (25), the rotating shaft (26) is rotationally connected with the material tank (2), and the helical blade (27) is connected with the rotating shaft (26); the side wall of the material tank (2) is used for enabling the spiral blade (27) to be far away from the side wall butt of the rotating shaft (26), and the first surface (241) is used for enabling the spiral blade (27) to be far away from the side wall butt of the rotating shaft (26).

5. A 3D printing device for processing dentures according to claim 1, wherein: the side wall and the bottom wall (24) of the material tank (2) are internally provided with heat insulation layers (21).

6. A 3D printing device for processing dentures according to claim 1, wherein: the printing device comprises a printing box (1), and is characterized by further comprising a first motor (16) and a screw rod (15) which are rotatably connected with the printing box (1), wherein the screw rod (15) is arranged in an extending mode along the height direction of the printing box (1), and the first motor (16) is used for driving the screw rod (15) to rotate; the printing box (1) is provided with a first guide rail (14), and the first guide rail (14) is arranged in an extending mode along the height direction of the printing box (1); the material tank (2) is connected with a first sliding block (23), and the first sliding block (23) is connected with the first guide rail (14) in a sliding manner; the material tank (2) is connected with a transmission block (22), a transmission hole (221) is formed in the surface of the transmission block (22) in a penetrating mode, and the transmission hole (221) is in threaded fit with the screw rod (15).

7. The 3D printing device for processing dentures according to claim 6, wherein: the printing device also comprises a tray (3), wherein the tray (3) is used for containing printing materials; the printing box (1) is provided with a second guide rail (17) and a third guide rail (18), the third guide rail (18) is connected with the second guide rail (17) in a sliding mode, and the material tank (2) is connected with the third guide rail (18) in a sliding mode; the sliding direction of the third guide rail (18) relative to the second guide rail (17) is along the axial direction of the third guide rail (18), and the sliding direction of the material tank (2) relative to the third guide rail (18) is along the axial direction of the third guide rail (18); the axial direction of the second guide rail (17) is perpendicular to the circumferential direction of the third guide rail (18); the printing box (1) is provided with a first driving piece (19) and a second driving piece (181), the first driving piece (19) is used for driving the third guide rail (18) to move, and the second driving piece (181) is used for driving the material tank (2) to move.

8. A 3D printing device for processing dentures according to claim 7, wherein: the first driving piece (19) and the second driving piece (181) are hydraulic cylinders.