A 3D printing device for printing an orthodontic dental aligner using a photosensitive resin

Abstract

The application relates to the technical field of 3D printing equipment, and discloses a 3D printing equipment for printing an orthodontic tooth cover by using photosensitive resin, which comprises a main body mechanism, a cleaning mechanism and a moving mechanism, the cleaning mechanism is located at the upper end of the main body mechanism, the moving mechanism is located at the outer end of the main body mechanism, the main body mechanism comprises a cutting line, a through port, a pushing plate and a connecting rod, the through port is fixedly installed at the lower end of the side sharp rod, the pushing plate is fixedly installed at the outer end of the center sharp rod, and the connecting rod is fixedly installed at the upper end of the pushing plate. The connecting rod drives the pushing plate to move downward, the center sharp rod moves downward synchronously with the pushing plate, the cutting line cuts the blocked rubber into powder, the synchronous downward movement of the pushing plate discharges the blockage from the metal shell. When the nozzle is blocked, the device is quickly cut and broken, the user can use the device again, and the practicability of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of 3D printing equipment technology, specifically to a 3D printing device for printing orthodontic braces using photosensitive resin. Background Technology

[0002] 3D printers, also known as three-dimensional printers, are a type of rapid prototyping equipment. Photosensitive resin refers to the liquid photocurable resin, or liquid photosensitive resin, used in photocuring rapid prototyping. It is mainly composed of oligomers, photoinitiators, and diluents. In recent years, photosensitive resin has been used in the emerging 3D printing industry due to its excellent properties, gaining favor and attention from the industry. (Also called) a mechanical device used to apply force skillfully to teeth. With the advancement of technology, 3D printing equipment is becoming increasingly mature.

[0003] For example, a 3D printing device with publication number CN107672163A overcomes the current limitation that 3D printing devices cannot print colored items. The device includes a nozzle and multiple feed tubes for conveying printing material. Each feed tube is equipped with a feeding element that can drive the printing material to move. Each feed tube is also equipped with a heating element that can heat the printing material. A mixing chamber for containing softened printing material is connected to each feed tube. The tubular outlet of the mixing chamber is the nozzle.

[0004] However, as it is an emerging technology, the nozzles of the 3D printing equipment in the aforementioned patent are prone to clogging, and once clogged, they are difficult to unclog. The operator needs to reset the print head to zero, then manually feed the filament to check if the filament output is normal. Next, the filament in the feed throat is pressed down to observe the filament output status, and this process is repeated to melt and remove any broken filaments that may be causing the blockage. In more serious cases, the operator needs to unscrew the feed knob, remove the spring and gasket, and slowly remove the extrusion roller to check for any remaining filaments. The operation is extremely cumbersome and difficult to unclog. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a 3D printing device for printing orthodontic braces using photosensitive resin, in order to solve the problems mentioned in the background art, such as the nozzle being prone to clogging, and the clogging being inconvenient to clear. In severe cases, operators need to unscrew the feed knob, remove the spring and gasket, slowly remove the extrusion roller, and observe whether there is any glue residue, which is extremely cumbersome and troublesome to clear.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a 3D printing device for printing orthodontic braces using photosensitive resin, comprising a main body, a cleaning mechanism, and a moving mechanism. The cleaning mechanism is located at the upper end of the main body, and the moving mechanism is located at the outer end of the main body. The main body includes a metal shell, a feed inlet, a central sharp rod, and side sharp rods. The feed inlet is fixedly disposed at the outer end of the metal shell, the central sharp rod is movably installed inside the metal shell, and the side sharp rods are movably installed inside the metal shell.

[0009] Preferably, the main body mechanism further includes a cutting line, a through-hole, a pusher plate, and a connecting rod. The cutting line is fixedly installed at the outer end of the side sharp rod, the through-hole is fixedly installed at the lower end of the side sharp rod, the pusher plate is fixedly installed at the outer end of the central sharp rod, and the connecting rod is fixedly installed at the upper end of the pusher plate. The cutting line passes through the through-hole at the lower end of the central sharp rod and is movably connected to the sharp rod. The connecting rod drives the pusher plate to move downward, and the central sharp rod and the pusher plate move downward synchronously, causing the cutting line to cut the clogged rubber wire into powder.

[0010] Preferably, the cleaning mechanism includes a top plate, a first reset spring, a positioning block, a slider, a slide rail block, a connecting frame, a second pull plate reset spring, a locking rod, a moving block, a third reset spring, a magnetic block, a horizontal plate, a fourth reset spring, and a telescopic rod, wherein the top plate is fixedly installed on the upper end of the connecting rod.

[0011] Preferably, the reset spring is fixedly installed at the upper end of the metal housing, the positioning block is movably installed at the inner end of the top plate, and the slider is fixedly installed at the outer end of the positioning block. When the top plate is stretched upward, the reset spring is stretched accordingly, and when released, it deforms and springs back.

[0012] Preferably, the slide block is movably mounted on the lower end of the slider, the connecting frame is fixedly mounted on the upper end of the central sharp rod, the pull plate is fixedly mounted on the outer end of the side sharp rod, the second reset spring is fixedly mounted on the outer end of the pull plate, and the locking rod is fixedly mounted on the outer end of the pull plate.

[0013] Preferably, the moving block is movably mounted on the inner end of the side sharp rod, the return spring three is fixedly mounted on the upper end of the moving block, the magnetic block is fixedly mounted inside the top plate, the horizontal plate is fixedly mounted on the outer end of the side sharp rod, the return spring four is fixedly mounted on the lower end of the horizontal plate, and the telescopic rod is fixedly mounted on the lower end of the horizontal plate.

[0014] Preferably, the moving mechanism includes a support base, a worktable, a connecting plate, a linear motor one, a support plate, a support column, a linear motor two, and a linear motor three. The support base is fixedly installed below the metal shell, and the worktable is fixedly installed at the upper end of the support base.

[0015] Preferably, the connecting plate is movably mounted above the support base, the linear motor is fixedly mounted on the outer end of the connecting plate, and the support plate is fixedly mounted on the upper end of the support base. The linear motor drives the connecting plate to move quantitatively within the support plate guide rail.

[0016] Preferably, the support column is fixedly installed at the inner end of the connecting plate, the second linear motor is movably installed inside the support plate, and the third linear motor is fixedly installed above the metal housing. The second linear motor drives the support column to move quantitatively within the guide rail of the connecting plate, and the third linear motor drives the metal housing to move quantitatively within the guide rail of the support column. This allows the metal housing, i.e., the nozzle, to perform 3D printing on various positions of the worktable. The directional positioning movement allows the nozzle to move synchronously in three directions, enhancing the printing speed of the equipment and effectively improving the efficiency of the equipment.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This 3D printing equipment for printing orthodontic braces using photosensitive resin has a fixed main structure. The cutting wire passes through the central sharp rod and is movably connected to the lower end of the side sharp rod via the through-hole. The connecting rod drives the pusher plate to move downward. The central sharp rod and the pusher plate move downward synchronously, causing the cutting wire to cut the clogged resin wire into powder. The pusher plate moves downward synchronously to discharge the blockage from the metal shell. This device can quickly cut and break up the blockage when the nozzle of the printing equipment is clogged, making it convenient for users to reuse the equipment and effectively improving the practicality of the equipment.

[0019] 2. This 3D printing equipment for printing orthodontic braces using photosensitive resin has a fixed cleaning mechanism. The cutting line is fixedly installed at the lower end of the moving block. When the user presses down the pull plate horizontally, the pull plate moves the locking rod into the moving block, fixing the moving block and preventing it from moving, thus fixing the cutting line. By pulling up the side sharp rod, the horizontal plate moves upward synchronously with the side sharp rod. The return spring and the telescopic rod stretch upward with the horizontal plate. When the side sharp rod is released, the return spring moves the telescopic rod downward, and the cutting line cuts the blockage simultaneously downward. The moving block is fixedly connected to the connecting frame, so that the central sharp rod and the side sharp rod are pressed down synchronously for horizontal cutting. When the user pushes the slider to move on the slide rail, the positioning block and the magnetic block separate, so that the side sharp rod can be pressed down individually, and the cutting line cuts synchronously on one side. The saw-shaped cutting of the cutting line improves the cutting effect and effectively enhances the practicality of the equipment.

[0020] 3. This 3D printing equipment for printing orthodontic braces using photosensitive resin, through the fixed installation of the moving mechanism, uses linear motor one to drive the connecting plate to move quantitatively within the support plate guide rail, linear motor two to drive the support column to move quantitatively within the connecting plate guide rail, and linear motor three to drive the metal shell to move quantitatively within the support column guide rail. This allows the metal shell, i.e., the nozzle, to 3D print various positions on the worktable. The directional positioning movement allows the nozzle to move synchronously in three directions, enhancing the printing speed of the equipment and effectively improving its efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the moving mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the moving mechanism of the present invention;

[0024] Figure 4 This is a partial structural diagram of the main body of the present invention;

[0025] Figure 5 This is a partial structural diagram of the cleaning mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of a partial cross-section of the main structure of the present invention;

[0027] Figure 7 This is a schematic diagram of a partial planar structure of the cleaning mechanism of the present invention.

[0028] In the diagram: 1. Main body; 101. Metal shell; 102. Feed inlet; 103. Central sharp rod; 104. Side sharp rod; 105. Cutting line; 106. Through port; 107. Push plate; 108. Connecting rod; 2. Cleaning mechanism; 201. Top plate; 202. Return spring 1; 203. Positioning block; 204. Slider; 205. Slide rail block; 206. Connecting frame; 207. Pull plate; 208. 209. Reset Spring II; 210. Locking Rod; 211. Moving Block; 212. Reset Spring III; 213. Magnetic Block; 214. Horizontal Plate; 215. Reset Spring IV; 216. Telescopic Rod; 307. Moving Mechanism; 308. Support Base; 309. Workbench; 300. Connecting Plate; 301. Linear Motor I; 302. Support Plate; 303. Support Column; 304. Linear Motor II; 305. Linear Motor III. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 This invention provides a technical solution: a 3D printing device for printing orthodontic braces using photosensitive resin, comprising a main body 1, a cleaning mechanism 2, and a moving mechanism 3. The cleaning mechanism 2 is located at the upper end of the main body 1, and the moving mechanism 3 is located at the outer end of the main body 1. The main body 1 includes a metal housing 101, an inlet 102, a central sharp rod 103, and side sharp rods 104. The inlet 102 is fixedly disposed at the outer end of the metal housing 101, the central sharp rod 103 is movably installed inside the metal housing 101, and the side sharp rods 104 are movably installed inside the metal housing 101. The main body 1 also includes a cutting line 105, a passage 106, a pusher plate 107, and a connecting rod 108. The cutting line 105 is fixedly installed on the side... The outer end of the sharp rod 104 is fixedly installed at the lower end of the side sharp rod 104 through the port 106. The pusher plate 107 is fixedly installed at the outer end of the central sharp rod 103. The connecting rod 108 is fixedly installed at the upper end of the pusher plate 107. The cutting wire 105 passes through the central sharp rod 103 and is movably connected to the sharp rod through the port 106 at the lower end of the side sharp rod 104. The connecting rod 108 drives the pusher plate 107 to move downward. The central sharp rod 103 and the pusher plate 107 move downward synchronously, driving the cutting wire 105 to cut the clogging filament into powder. The pusher plate 107 moves downward synchronously, discharging the clogging material from the metal housing 101. This device can quickly cut and break up the clogging of the print head when it is clogged, making it convenient for the user to reuse the equipment.

[0031] The cleaning mechanism 2 includes a top plate 201, a first return spring 202, a positioning block 203, a slider 204, a slide rail block 205, a connecting frame 206, a pull plate 207, a second return spring 208, a locking rod 209, a moving block 210, a third return spring 211, a magnetic block 212, a horizontal plate 213, a fourth return spring 214, and a telescopic rod 215. The top plate 201 is fixedly installed on the upper end of the connecting rod 108, the first return spring 202 is fixedly installed on the upper end of the metal housing 101, the positioning block 203 is movably installed on the inner end of the top plate 201, and the slider 204 is fixedly installed on the positioning block 203. The outer end of the slide rail 205 is movably mounted on the lower end of the slider 204. The connecting frame 206 is fixedly mounted on the upper end of the central sharp rod 103. The pull plate 207 is fixedly mounted on the outer end of the side sharp rod 104. The second return spring 208 is fixedly mounted on the outer end of the pull plate 207. The locking rod 209 is fixedly mounted on the outer end of the pull plate 207. The moving block 210 is movably mounted on the inner end of the side sharp rod 104. The third return spring 211 is fixedly mounted on the upper end of the moving block 210. The magnetic block 212 is fixedly mounted inside the top plate 201. The horizontal plate 213 is fixedly mounted on the side sharp rod 104. At the outer end, the return spring 214 is fixedly installed at the lower end of the horizontal plate 213, the telescopic rod 215 is fixedly installed at the lower end of the horizontal plate 213, and the cutting line 105 is fixedly installed at the lower end of the moving block 210. When the user presses down the pull plate 207 horizontally, the pull plate 207 drives the locking rod 209 to engage with the moving block 210, fixing the moving block 210 so that it cannot move, thereby fixing the cutting line 105. By pulling the side sharp rod 104, the horizontal plate 213 moves upward synchronously with the side sharp rod 104. The return spring 214 and the telescopic rod 215 stretch upward with the horizontal plate 213, releasing the side sharp rod 104. The side sharp rod 104, with the return spring 214 driving the telescopic rod 215 to rebound downwards, and the cutting line 105 cutting downwards simultaneously to cut the blockage, is fixedly connected to the moving block 210 through the connecting frame 206, so that the central sharp rod 103 and the side sharp rod 104 are pressed down synchronously to perform horizontal cutting. When the user pushes the slider 204 to move on the slide rail block 205, the positioning block 203 separates from the magnetic block 212, so that the side sharp rod 104 can be pressed down individually, and the cutting line 105 cuts simultaneously on one side. The saw-shaped cutting of the cutting line 105 improves the cutting effect of the cutting line 105.

[0032] The moving mechanism 3 includes a support base 301, a worktable 302, a connecting plate 303, a first linear motor 304, a support plate 305, a support column 306, a second linear motor 307, and a third linear motor 308. The support base 301 is fixedly installed below the metal housing 101. The worktable 302 is fixedly installed above the support base 301. The connecting plate 303 is movably installed above the support base 301. The first linear motor 304 is fixedly installed on the outer end of the connecting plate 303. The support plate 305 is fixedly installed on the upper end of the support base 301. The support column 306 is fixedly installed on the inner end of the connecting plate 303. The second linear motor 307... 7. The movable part is installed inside the support plate 305. The linear motor 308 is fixedly installed above the metal housing 101. The linear motor 1 304 drives the connecting plate 303 to move quantitatively within the guide rail of the support plate 305. The linear motor 2 307 drives the support column 306 to move quantitatively within the guide rail of the connecting plate 303. The linear motor 308 drives the metal housing 101 to move quantitatively within the guide rail of the support column 306. This allows the metal housing 101, i.e. the nozzle, to perform 3D printing on various positions of the worktable 302. The directional positioning movement allows the nozzle to move synchronously in three directions, enhancing the printing speed of the equipment.

[0033] Working principle: Linear motor 304 drives the connecting plate 303 to move quantitatively within the guide rail of the support plate 305; linear motor 307 drives the support column 306 to move quantitatively within the guide rail of the connecting plate 303; and linear motor 308 drives the metal housing 101 to move quantitatively within the guide rail of the support column 306. This allows the metal housing 101, i.e., the printhead, to perform 3D printing at various positions on the worktable 302. The directional positioning movement allows the printhead to move synchronously in three directions, enhancing the speed of the printing process. The cutting wire 105 passes through the central sharp rod 103 and is movably connected to the side sharp rod 104 via the through-hole 106 at the lower end of the sharp rod. Through the connecting rod 108, it drives the pusher plate 107 to move downwards. The central sharp rod 103 and the pusher plate 107 move downwards synchronously, causing the cutting wire 105 to cut the clogged rubber filament into powder. Simultaneously, the pusher plate 107 moves downwards, expelling the clogged material from the metal housing 101. This device quickly cuts and breaks up the clogged material when the printhead is clogged, facilitating further maintenance by the user. In use, the cutting line 105 is fixedly installed at the lower end of the moving block 210. When the user presses down the pull plate 207 horizontally, the pull plate 207 drives the locking rod 209 to engage with the moving block 210, fixing the moving block 210 so that it cannot move, thereby fixing the cutting line 105. By lifting the side sharp rod 104, the horizontal plate 213 moves upward synchronously with the side sharp rod 104. The return spring 214 and the telescopic rod 215 are stretched upward along with the horizontal plate 213. When the side sharp rod 104 is released, the return spring 214 drives the telescopic rod. 215 rebounds downwards, and the synchronous cutting line 105 cuts the blockage downwards. The moving block 210 is fixedly connected by the connecting frame 206, so that the central sharp rod 103 and the side sharp rod 104 are pressed down synchronously to perform horizontal cutting. When the user pushes the slider 204 to move on the slide rail block 205, the positioning block 203 is separated from the magnetic block 212, so that the side sharp rod 104 can be pressed down individually, and the cutting line 105 cuts synchronously on one side. The saw-shaped cutting of the cutting line 105 improves the cutting effect of the cutting line 105.

[0034] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A 3D printing device for printing orthodontic aligners using photosensitive resin, comprising a main body mechanism (1), a cleaning mechanism (2) and a moving mechanism (3), characterized in that: The cleaning mechanism (2) is located at the upper end of the main body mechanism (1), the moving mechanism (3) is located at the outer end of the main body mechanism (1), the main body mechanism (1) comprises a metal shell (101), an inlet (102), a central sharp rod (103) and a side sharp rod (104), the inlet (102) is fixedly arranged at the outer end of the metal shell (101), the central sharp rod (103) is movably mounted in the metal shell (101), and the side sharp rod (104) is movably mounted in the metal shell (101). The main body mechanism (1) further comprises a cutting line (105), a through port (106), a pushing plate (107) and a connecting rod (108), the cutting line (105) is fixedly mounted at the outer end of the side sharp rod (104), the through port (106) is fixedly mounted at the lower end of the side sharp rod (104), the pushing plate (107) is fixedly mounted at the outer end of the central sharp rod (103), and the connecting rod (108) is fixedly mounted at the upper end of the pushing plate (107). The cutting line (105) is movably connected with the through port (106) and the sharp rod at the lower end of the side sharp rod (104) through the central sharp rod (103), the pushing plate (107) is driven to move downward by the connecting rod (108), the central sharp rod (103) moves downward synchronously with the pushing plate (107), and the cutting line (105) is driven to cut the blocked rubber powder into powder.

2. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 1, wherein: The cleaning mechanism (2) comprises a top plate (201), a reset spring one (202), a positioning block (203), a sliding block (204), a sliding rail block (205), a connecting frame (206), a pull plate (207), a reset spring two (208), a locking rod (209), a moving block (210), a reset spring three (211), a magnetic attraction block (212), a horizontal plate (213), a reset spring four (214) and an extension rod (215), and the top plate (201) is fixedly mounted at the upper end of the connecting rod (108).

3. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 2, wherein: The reset spring one (202) is fixedly mounted at the upper end of the metal shell (101), the positioning block (203) is movably mounted at the inner end of the top plate (201), and the sliding block (204) is fixedly mounted at the outer end of the positioning block (203).

4. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 3, wherein: The sliding rail block (205) is movably mounted at the lower end of the sliding block (204), the connecting frame (206) is fixedly mounted at the upper end of the central sharp rod (103), the pull plate (207) is fixedly mounted at the outer end of the side sharp rod (104), the reset spring two (208) is fixedly mounted at the outer end of the pull plate (207), and the locking rod (209) is fixedly mounted at the outer end of the pull plate (207).

5. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 4, wherein: The moving block (210) is movably installed at the inner end of the side sharp rod (104), the reset spring three (211) is fixedly installed at the upper end of the moving block (210), the magnetic attraction block (212) is fixedly installed at the inside of the top plate (201), the cross plate (213) is fixedly installed at the outer end of the side sharp rod (104), the reset spring four (214) is fixedly installed at the lower end of the cross plate (213), and the telescopic rod (215) is fixedly installed at the lower end of the cross plate (213).

6. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 5, wherein: The moving mechanism (3) comprises a support base (301), a workbench (302), a connecting plate (303), a linear motor one (304), a support plate (305), a support column (306), a linear motor two (307) and a linear motor three (308), the support base (301) is fixedly installed below the metal shell (101), and the workbench (302) is fixedly installed at the upper end of the support base (301).

7. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 6, wherein: The connecting plate (303) is movably installed above the support base (301), the linear motor one (304) is fixedly installed at the outer end of the connecting plate (303), and the support plate (305) is fixedly installed at the upper end of the support base (301).

8. The 3D printing device for printing an orthodontic dental aligner using photosensitive resin according to claim 7, wherein: The support column (306) is fixedly installed at the inner end of the connecting plate (303), the linear motor two (307) is movably installed inside the support plate (305), and the linear motor three (308) is fixedly installed above the metal shell (101).

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