CN112477120A

CN112477120A - 3D printer of artificial tooth model

Info

Publication number: CN112477120A
Application number: CN202011144227.5A
Authority: CN
Inventors: 牛东平; 牛力
Original assignee: Beijing Liaison Dental Technology Co Ltd
Current assignee: Beijing Liaison Dental Technology Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-03-12

Abstract

The invention discloses a 3D printer of an artificial tooth model, which comprises a printer body, wherein a rectangular groove is formed in the inner bottom wall of the printer body, two sliding rods are fixedly installed on the inner walls of two sides of the rectangular groove, the surfaces of the two sliding rods are respectively connected with a fixed block and a T-shaped sliding block in a sliding mode, a placing plate is fixedly installed on the upper surface of the fixed block, a forward and reverse rotating motor is fixedly installed on the inner wall of the left side of the rectangular groove, an installation seat is fixedly installed on the lower surface of the printer body, a cylindrical groove is formed in the lower surface of the installation seat, and two sliding grooves are formed in the inner wall of the cylindrical groove. This 3D printer of artificial tooth model through setting up fixed block, T type slider, placing board, positive and negative motor, threaded rod and linking piece, makes the 3D printer of this artificial tooth model when placing the model utensil, can make through positive and negative motor and place the board and remove to printer body outside to make things convenient for the placing of operator to the model utensil.

Description

3D printer of artificial tooth model

Technical Field

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

Background

3D printing, which is one of the rapid prototyping technologies, is also called additive manufacturing, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like, and by printing layer by layer, based on a digital model file.

At present, 3D printing technology is gradually applied to the printing of denture models, when the denture models are printed by a 3D printer of the existing denture models, an operator mostly places template appliances at the printing positions of the printer in a handheld mode, and the mode is more complicated and cannot ensure the correct positions and directions for placing the template appliances.

Therefore, we need a 3D printer for denture models.

Disclosure of Invention

The invention aims to provide a 3D printer of a denture model, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a 3D printer of a denture model, comprising:

the printer comprises a printer body, wherein a rectangular groove is formed in the inner bottom wall of the printer body, sliding rods are fixedly installed on the inner walls of two sides of the rectangular groove, the number of the slide bars is two, the surfaces of the two slide bars are respectively connected with a fixed block and a T-shaped slide block in a sliding way, a placing plate is fixedly arranged on the upper surface of the fixed block, a forward and reverse rotating motor is fixedly arranged on the inner wall of the left side of the rectangular groove, the lower surface of the printer body is fixedly provided with a mounting seat, the lower surface of the mounting seat is provided with a cylindrical groove, two sliding grooves are arranged on the inner wall of the cylindrical groove, the inner walls of the two sliding grooves are connected with a limiting disc in a sliding way, an opening is arranged on the upper surface of the limiting disc, a cylindrical rod is fixedly arranged on the inner wall of the opening, one end of the cylindrical rod extends to the upper surface of the limiting disc, and the other end of the cylindrical rod extends to the lower surface of the limiting disc.

Preferably, the lower surface of the placing plate is provided with a sliding chute matched with the T-shaped sliding block, and the T-shaped sliding block is connected with the lower surface of the placing plate in a sliding mode through the sliding chute.

Preferably, the output fixed mounting of just reversing motor has the threaded rod, the one end that just reversing motor was kept away from to the threaded rod is passed through the bearing and is connected with the right side inner wall rotation of rectangular channel, the lower fixed surface who places the board installs and links up the piece, the side of linking up the piece is seted up threaded hole, the inner wall of threaded hole and the surface threaded connection of threaded rod.

Preferably, the number of the installation seats is four, and the installation seats are rectangular arrays and are respectively arranged at four corners of the printer body.

Preferably, the upper surface of the limiting disc is fixedly provided with a damping spring, and one end of the damping spring, which is far away from the limiting disc, is fixedly connected with the inner top wall of the cylindrical groove.

Preferably, the bottom fixed mounting of cylinder pole has the supporting seat, the lower fixed surface of supporting seat installs the non-slip raised, the quantity of non-slip raised is a plurality of, a plurality of the non-slip raised is the lower surface of rectangle array setting at the supporting seat.

Preferably, the right flank of printer body is connected with the apron through hinge rotation, the side of apron is provided with the handle, the surface cover of handle is equipped with the antiskid rubber sleeve, the right flank of printer body is provided with the control unit.

Preferably, the upper surface of the placing plate is provided with a first slide rail, a separating mechanism, a first cylinder and a baffle plate;

the number of the first slide rails is two, the first slide rails are arranged on the upper surface of the placing plate, the baffle plate is arranged at the left end of the upper surface of the placing plate, the separating mechanism is arranged between the first slide rails, the left end of the first air cylinder is fixedly connected with the right side of the baffle plate, and the right end of the first air cylinder is fixedly connected with the left side of the separating mechanism;

the first slide rail comprises a main body, two inclined planes and two first rails, the first slide rail main body is arranged on the upper surface of the placing plate, the inclined planes are arranged at two ends of the first slide rail main body, the first rails are arranged on the inner side of the first slide rail main body, the two first rails correspond to each other in position, and the opening of each first rail faces the inner side;

separating mechanism includes smooth handle, connecting rod, cuts the shovel, smooth handle with first track sliding connection, smooth handle passes through bolt detachable and sets up the both ends of connecting rod, the right-hand member of first cylinder with the left side of connecting rod is connected, cut the shovel and pass through bolt detachable sets up the bottom of connecting rod, the upper surface and the lower surface of smooth handle are provided with the recess respectively, the recess with it has circular granule to fill between the first track.

Preferably, a dust removing mechanism and a supporting mechanism are further arranged above the placing plate, and the dust removing mechanism is arranged at the bottom of the supporting mechanism;

the supporting mechanism comprises a second slide rail, a sliding plate, a second air cylinder and a third air cylinder;

the number of the second slide rails is two, the second slide rails are respectively arranged on the inner side wall of the printer body and correspond to each other, a second rail is arranged in each second slide rail, the sliding plate is connected with the second rail in a sliding mode, the rear end of each second air cylinder is fixedly connected to the inner side wall of the printer body, the front end of each second air cylinder is fixedly connected to the side face of the corresponding sliding plate, the third air cylinder is arranged at the bottom of the corresponding sliding plate, and the dust removing mechanism is arranged at the bottom of the corresponding third air cylinder;

the dust removal mechanism comprises a mechanism body, a guide way, a conveying end, a brush disc, a leakage-proof passage, a collection device, a standby collection device and a suction device;

the guide way sets up inside the mechanism body, the bottom of mechanism body is provided with a plurality of dust collecting hole, it sets up to transport the end the upper end of mechanism body, the leak protection route sets up the bottom center of mechanism body, the dust collecting hole transport the end the leak protection route respectively with the guide way turn-on connection, the brush dish sets up the bottom of mechanism body, the brush dish is connected by motor control, reserve collection device sets up leak protection route bottom, collection device sets up the side of mechanism body and with transport the end turn-on connection, suction device sets up collection device with transport between the end, the top of mechanism body with third cylinder fixed connection.

Preferably, the printer body is provided with a built-in scanning program for printing, the scanning program is realized according to a predetermined method, and the predetermined method comprises the following steps:

step 1, calculating a path after 3D printing compensation according to the following formula:

wherein: a is the constant of the compensated path linear equation, l_rTo compensate for the radius, N₁、N₂Is a linear equation constant of two adjacent intersecting paths;

and 2, obtaining intersection point coordinates after the paths compensated in the step 1 are combined, and controlling a built-in scanning program of the printer body (1) to establish a model according to the compensated intersection point coordinates.

Advantageous effects

The invention provides a 3D printer of a denture model, which has the following beneficial effects:

1. this 3D printer of artificial tooth model through setting up fixed block, T type slider, placing board, positive and negative motor, threaded rod and linking piece, makes the 3D printer of this artificial tooth model when placing the model utensil, can make through positive and negative motor and place the board and remove to printer body outside to make things convenient for the placing of operator to the model utensil.

2. This 3D printer of artificial tooth model through setting up mount pad, spacing dish, cylinder pole and damping spring, makes the 3D printer of this artificial tooth model at the in-process of long-time use, can cushion the vibrations that printer body produced through damping spring, has improved the stability of printer body during operation.

Drawings

Fig. 1 is a schematic front sectional view of a 3D printer of a denture model according to the present invention;

fig. 2 is a schematic side view of a 3D printer of a denture model according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is an enlarged schematic view of a portion B in fig. 1.

Fig. 5 is a schematic structural diagram of a placing plate of a 3D printer for a denture model according to the present invention.

Fig. 6 is a schematic structural diagram of a separating mechanism of a 3D printer for a denture model according to the present invention.

Fig. 7 is an exploded view of a separating mechanism of a 3D printer for a denture model according to the present invention.

Fig. 8 is a schematic structural diagram of a supporting mechanism of a 3D printer for a denture model according to the present invention.

Fig. 9 is a schematic structural diagram of a dust removing mechanism of a 3D printer for a denture model according to the present invention.

Fig. 10 is a schematic structural view of a standby collecting device of a 3D printer for a denture model according to the present invention in a suction stop state.

In the figure: 1 printer body, 2 sliding rod, 3 fixed block, 4T-shaped sliding block, 5 placing plate, 6 positive and negative rotating motor, 7 mounting seat, 8 limiting disc, 9 cylindrical rod, 10 sliding chute, 11 threaded rod, 12 connecting block, 13 damping spring, 14 supporting seat, 15 cover plate, 16 handle, 17 first sliding rail, 18 separating mechanism, 19 air cylinder, 20 baffle, 17-1 first sliding rail main body, 17-2 inclined plane, 17-3 first rail, 18-1 sliding handle, 18-2 connecting rod, 18-3 cutting shovel, 18-4 groove, 21 dust removing mechanism, 22 supporting mechanism, 21-1 mechanism body, 21-2 dust collecting hole, 21-3 guide way, 21-4 conveying end, 21-5 brush disc, 21-6 leakage-proof way, 21-7 standby collecting device, 21-8 suction device, 21-9 collecting device, 22-1 second slide rail, 22-2 slide plate, 22-3 second cylinder and 22-4 third cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a 3D printer of artificial tooth model, includes printer body 1, and printer body 1's right flank is connected with apron 15 through the hinge rotation, and the side of apron 15 is provided with handle 16, and handle 16's surface cover is equipped with anti-skidding rubber sleeve, and printer body 1's right flank sets up uses the control unit.

The rectangular channel has been seted up to printer body 1's interior diapire, the both sides inner wall fixed mounting of rectangular channel has slide bar 2, the quantity of slide bar 2 is two, sliding connection has fixed block 3 and T type slider 4 respectively on two slide bar 2's surface, the last fixed surface of fixed block 3 installs places board 5, place the lower surface of board 5 and set up the spout 10 with T type slider 4 looks adaptation, T type slider 4 passes through spout 10 and places the lower surface sliding connection of board 5.

The left side inner wall fixed mounting of rectangular channel has just reversing motor 6, and just reversing motor 6's output fixed mounting has threaded rod 11, and threaded rod 11 keeps away from just reversing motor 6's one end and passes through the bearing and be connected with the right side inner wall rotation of rectangular channel, and the lower fixed surface who places board 5 installs linking piece 12, links up the side of piece 12 and sets up threaded hole, the inner wall of screw hole and threaded rod 11's surface threaded connection.

Through setting up fixed block 3, T type slider 4, placing board 5, just reversal motor 6, threaded rod 11 and linking piece 12, make the 3D printer of this artificial tooth model when placing the model utensil, can make through just reversal motor 6 and place board 5 and to 1 outside removal of printer body to make things convenient for the operator to the placing of model utensil.

The lower fixed surface of printer body 1 installs mount pad 7, and the quantity of mount pad 7 is four, and four mount pads 7 are the rectangle array and set up the four corners department at printer body 1 respectively.

The cylinder groove has been seted up to the lower surface of mount pad 7, and two sliding trays have been seted up to the inner wall in cylinder groove, and the inner wall sliding connection of two sliding trays has spacing dish 8, and spacing dish 8's last fixed surface installs damping spring 13, and damping spring 13 keeps away from spacing dish 8's one end and the interior roof fixed connection in cylinder groove.

The opening has been seted up to spacing dish 8's upper surface, and open-ended inner wall fixed mounting has cylinder pole 9, and the one end of cylinder pole 9 extends to spacing dish 8's upper surface, and the other end of cylinder pole 9 extends to spacing dish 8's lower surface.

The bottom fixed mounting of cylinder pole 9 has supporting seat 14, and the lower fixed surface of supporting seat 14 installs the non-slip raised, and the quantity of non-slip raised is a plurality of, and a plurality of non-slip raised is the lower surface of rectangle array setting at supporting seat 14.

Through setting up mount pad 7, spacing dish 8, cylinder pole 9 and damping spring 13, make the 3D printer of this artificial tooth model at the in-process of long-time use, can cushion the vibrations that printer body 1 produced through damping spring 13, improved the stability of printer body 1 during operation.

The working principle of the technical scheme is as follows: when carrying out 3D printing to artificial tooth model, at first open apron 15, start positive reverse motor 6, make threaded rod 11 rotate, threaded rod 11's rotation is through linking up piece 12 drive place board 5 and slide right on the surface of slide bar 2, thereby the messenger places board 5 and removes the outside to printer body 1, place the model utensil on placing board 5, restart positive reverse motor 6 again, the messenger places board 5 and resumes the normal position, carry out 3D laser printing, the 3D printer of this artificial tooth model is at the in-process of long-time use simultaneously, can cushion the vibrations that printer body 1 produced through damping spring 13.

The beneficial effects of the above technical scheme are that: through the design of the structure, the invention provides a concrete structure of a 3D printer of an artificial tooth model, a positive and negative rotating motor 6 is used for controlling a threaded rod 11, the threaded rod 11 rotates to drive a placing plate 5 to slide rightwards on the surface of a sliding rod 2 through a connecting block 12, so that an operator can conveniently place a model appliance, meanwhile, in the process of long-time use of the 3D printer of the artificial tooth model, the vibration generated by the printer body 1 can be buffered through a damping spring 13, and the stability of the printer body 1 during working is improved.

Referring to fig. 1, in an embodiment of fig. 5-7, the upper surface of the placing plate 5 is provided with a first slide rail 17, a separating mechanism 18, a first cylinder 19, and a baffle 20;

the number of the first slide rails 17 is two, the first slide rails 17 are arranged on the upper surface of the placing plate 5, the baffle plate 20 is arranged at the left end of the upper surface of the placing plate 5, the separating mechanism 18 is arranged between the first slide rails 17, the left end of the first air cylinder 19 is fixedly connected with the right side of the baffle plate 20, and the right end of the first air cylinder 19 is fixedly connected with the left side of the separating mechanism 18;

the first slide rail 17 comprises a main body 17-1, two inclined planes 17-2 and first rails 17-3, the main body 17-1 of the first slide rail is arranged on the upper surface of the placing plate 5, the number of the inclined planes 17-2 is two, the inclined planes 17-2 are arranged at two ends of the main body 17-1 of the first slide rail, the first rails 17-3 are arranged at the inner side of the main body 17-1 of the first slide rail, the positions of the two first rails 17-3 correspond to each other, and the opening parts of the two first rails are both towards the inner side;

the separating mechanism 18 comprises a sliding handle 18-1, a connecting rod 18-2 and a cutting shovel 18-3, the sliding handle 18-1 is connected with the first rail 17-3 in a sliding mode, the sliding handle 18-1 is detachably arranged at two ends of the connecting rod 18-2 through bolts, the right end of the first air cylinder 19 is connected with the left side of the connecting rod 18-2, the cutting shovel 18-3 is detachably arranged at the bottom of the connecting rod 18-2 through the bolts, grooves 18-4 are respectively formed in the upper surface and the lower surface of the sliding handle 18-1, and round particles are filled between the grooves 18-4 and the first rail 17-3.

The working principle of the technical scheme is as follows: in the 3D printing process, the denture model after printing is placed on the upper surface of the placing plate 5, the air cylinder 19 extends out under the support of the baffle plate 20, the separating mechanism 18 is driven to advance along the upper surface of the placing plate 5 to the right front under the guidance of the first slide rail 17, and the denture model is pushed to the position of the denture model to separate the bottom of the denture model from the placing plate 5; in the process of separating the denture model, the inclined planes 17-2 are arranged at two ends of the first slide rail main body 17-1, the connecting rod 18-2 is pushed to the right side under the action of the air cylinder 19, the slide handle 18-1 slides leftwards along the first rail 17-3 under the limitation of the first rail 17-3, the upper surface and the lower surface of the slide handle 18-1 are provided with grooves 18-4, round particles are filled between the grooves 18-4 and the first rail 17-3, the round particles roll relative to the grooves 18-4 and the first rail 17-3 to convert the sliding friction force generated by the grooves 18-4 and the first rail 17-3 into relative rolling, the slide handle 18-1 is detachably arranged at two ends of the connecting rod 18-2 through bolts, the cutting shovel 18-3 is detachably arranged at the bottom of the connecting rod 18-2 through bolts, when the cutting shovel 18-3 or the connecting rod 18-2 is in strain, the cutting shovel can be detached and replaced respectively.

The beneficial effects of the above technical scheme are that: through the design of the structure, the embodiment provides the first slide rail 17, the separating mechanism 18, the air cylinder 19 and the baffle plate 20, the baffle plate 20 provides support for the air cylinder 19, the first slide rail 17 provides guidance for the separating mechanism 18, and then the separating mechanism 18 is driven to rapidly separate the denture model from the placing plate 5 under the driving of the air cylinder 19 and the guidance of the first slide rail 17, so that the denture model is prevented from being adhered to the surface of the placing plate 5 too tightly and cannot be taken out by manpower, and meanwhile, the placing plate 5 or the denture model is prevented from being damaged when other sharp objects are used for separating the denture model; through the design of the structure, the invention provides the specific structure of the first slide rail 17 and the separating mechanism 18, the slide handle 18-1 is matched with the first rail 17-3 to limit and guide the connecting rod 18-2 and the cutting shovel 18-3, the cutting shovel 18-3 can be ensured to accurately and stably act between the denture model and the placing plate 5, round particles are filled between the groove 18-4 and the first rail 17-3, the round particles roll relative to the groove 18-4 and the first rail 17-3, the sliding friction force generated by the slide handle 18-1 and the first rail 17-3 is converted into relative rolling, the friction force is greatly reduced, the abrasion of the slide handle 18-1 is reduced, the service life is prolonged, the economic loss is reduced, the cutting shovel 18-3 and the connecting rod 18-2 can be detached, when taking place the strain, can be timely dismantle and replace, realize cyclic utilization, reduce cost, and simple structure easily dismantles and production.

Referring to fig. 1, in an embodiment, fig. 8-10, a dust removing mechanism 21 and a supporting mechanism 22 are further disposed above the placing plate 5, and the dust removing mechanism 21 is disposed at the bottom of the supporting mechanism 22;

the supporting mechanism 22 comprises a second slide rail 22-1, a sliding plate 22-2, a second air cylinder 22-3 and a third air cylinder 22-4;

the number of the second slide rails 22-1 is two, the second slide rails 22-1 are respectively arranged on the inner side wall of the printer body 1 and correspond to each other, a second rail 22-5 is arranged in the second slide rail 22-1, the slide plate 22-2 is in sliding connection with the second rail 22-5, the rear end of the second cylinder 22-3 is fixedly connected to the inner side wall of the printer body 1, the front end of the second cylinder 22-3 is fixedly connected to the side surface of the slide plate 22-2, the third cylinder 22-4 is arranged at the bottom of the slide plate 22-2, and the dust removing mechanism 21 is arranged at the bottom of the third cylinder 22-4;

the dust removal mechanism 21 comprises a mechanism body 21-1, a guide passage 21-3, a conveying end 21-4, a brush disc 21-5, a leakage-proof passage 21-6, a collection device 21-9, a standby collection device 21-7 and a suction device 21-8;

the guide path 21-3 is arranged inside the mechanism body 21-1, the bottom of the mechanism body 21-1 is provided with a plurality of dust collecting holes 21-2, the delivery end 21-4 is arranged at the upper end of the mechanism body 21-1, the leakage-proof path 21-6 is arranged at the center of the bottom of the mechanism body 21-1, the dust collecting holes 21-2, the delivery end 21-4 and the leakage-proof path 21-6 are respectively communicated with the guide path 21-3, the brush disc 21-5 is arranged at the bottom of the mechanism body 21-1, the brush disc 21-5 is controlled and connected by a motor, the standby collecting device 21-7 is arranged at the bottom of the leakage-proof path 21-6, the collecting device 21-9 is arranged at the side of the mechanism body 21-1 and is communicated with the delivery end 21-4, the suction device 21-8 is arranged between the collecting device 21-9 and the delivery end 21-4, and the top of the mechanism body 21-1 is fixedly connected with the third cylinder 22-4.

The working principle of the technical scheme is as follows: before printing or after the denture model is taken out after printing, the 3D printing area needs to be cleaned, in the cleaning process, the sliding plate 22-2 is pushed out by the second air cylinder 22-3, and the sliding plate 22-2 slides to the position required by cleaning in parallel along the sliding rail under the limitation of the second rail 22-5 on the second sliding rail 22-1; after the device is in place, the third cylinder 22-4 extends, meanwhile, the third cylinder 22-4 drives the dust removal mechanism 21 to move downwards, so that the dust removal mechanism 21 is in contact with the surface to be cleaned on the upper surface of the placing plate 5 to be cleaned, after cleaning is completed, the third cylinder 22-4 is retracted to drive the dust removal mechanism 21 to move upwards, and after the device is moved upwards to the highest position, the second cylinder 22-3 is retracted to drive the sliding plate 22-2 and the dust removal mechanism 21 to reset; in the dust removing process of the dust removing mechanism 21, a motor drives a brush disc 21-5 to rotate around the center as a shaft, the brush disc 21-5 performs first-step cleaning on the surface of the placing plate 5, when the brush disc 21-5 brushes off fine scraps and dust, a suction device 21-8 performs suction, the fine scraps and the dust enter a guide path 21-3 in a mechanism body 21-1 from a dust collecting hole 21-2, the guide path 21-3 conveys the fine scraps and the dust to a collecting device 21-9 through a conveying end 21-4, and at the moment, a standby collecting device 21-7 protrudes upwards under the action of suction force; when the suction is finished, a small part of the fine dust and dust remained in the guide passage 21-3 fall back downwards to the leakage-proof passage 21-6 under the action of lost suction force, at the moment, the standby collecting device 21-7 falls back downwards to form a space under the action of gravity, and then the leakage-proof passage 21-6 conveys the fine dust and dust to the standby collecting device 21-7 to prevent the fallen fine dust and dust from secondarily polluting a processing position.

The beneficial effects of the above technical scheme are that: through the design of the structure, the embodiment provides a specific structure of the dust removing mechanism 21 and the supporting mechanism 22, the second cylinder 22-3 acts on the side wall of the sliding plate 22-2 to drive the dust removing mechanism 21 to move to a cleaning area or reset, the third cylinder 22-4 acts on the dust removing mechanism 21 to control the upward movement and the downward movement of the dust removing mechanism 21, so as to realize the contact and the separation of the dust removing mechanism 21 and the cleaning area on the upper surface of the placing plate 5, the dust removing mechanism 21 can clean fine dust through the brush disc 21-5, meanwhile, the auxiliary of the suction device 21-8 is added, so that the cleaning effect is ensured to a great extent, meanwhile, under the action of the standby collecting device 21-7 and the leakage-proof passage 21-6, after the suction is finished, the secondary pollution of the fine dust to a processing part caused by a small part of the fine dust remained in the guide passage 21-3 and the dust falling back down under the effect of losing, the pollution of dust and fine scraps to the denture model in the 3D printing process is avoided, the fine scraps are prevented from being attached to the surface of the model in the printing process, and the surface quality of the model is difficult to remove after the model is formed.

Please refer to fig. 1, the printer body 1 is built with a scanning program to realize printing, the scanning program is realized according to a predetermined method, and the steps of the predetermined method are as follows:

and 2, obtaining intersection point coordinates after the paths compensated in the step 1 are combined, and controlling a built-in scanning program of the printer body 1 to establish a model according to the compensated intersection point coordinates.

The working principle and the beneficial effects of the technical scheme are as follows: in the 3D printing process, the printer body 1 carries out compensation calculation on a printing path through the step 1, intersection point coordinates after compensation are obtained through a formula given in the simultaneous step 1, and an accurate false tooth model outline is confirmed according to the intersection point coordinates, so that the processed false tooth model is more accurate, the model quality is improved, and the model printing efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A3D printer of a denture model, comprising:

the printer comprises a printer body (1), wherein a rectangular groove is formed in the inner bottom wall of the printer body (1), slide rods (2) are fixedly mounted on the inner walls of two sides of the rectangular groove, the number of the slide rods (2) is two, the surfaces of the two slide rods (2) are respectively connected with a fixed block (3) and a T-shaped slide block (4) in a sliding manner, a placing plate (5) is fixedly mounted on the upper surface of the fixed block (3), a forward and reverse rotating motor (6) is fixedly mounted on the inner wall of the left side of the rectangular groove, a mounting seat (7) is fixedly mounted on the lower surface of the printer body (1), a cylindrical groove is formed in the lower surface of the mounting seat (7), two slide grooves are formed in the inner wall of the cylindrical groove, a limiting disc (8) is slidably connected to the inner walls of the two slide grooves, an opening is formed in the upper, one end of the cylindrical rod (9) extends to the upper surface of the limiting disc (8), and the other end of the cylindrical rod (9) extends to the lower surface of the limiting disc (8).

2. The denture model 3D printer according to claim 1, wherein a sliding groove (10) matched with the T-shaped sliding block (4) is formed in the lower surface of the placing plate (5), and the T-shaped sliding block (4) is connected with the lower surface of the placing plate (5) in a sliding mode through the sliding groove (10).

3. The 3D printer for the denture model is characterized in that a threaded rod (11) is fixedly mounted at the output end of the forward and reverse rotation motor (6), one end, far away from the forward and reverse rotation motor (6), of the threaded rod (11) is rotatably connected with the inner wall of the right side of the rectangular groove through a bearing, an engagement block (12) is fixedly mounted on the lower surface of the placing plate (5), a threaded hole is formed in the side surface of the engagement block (12), and the inner wall of the threaded hole is in threaded connection with the surface of the threaded rod (11).

4. The 3D printer of a denture model according to claim 1, wherein the number of the mounting seats (7) is four, and the four mounting seats (7) are respectively arranged at four corners of the printer body (1) in a rectangular array.

5. The 3D printer for the denture model as claimed in claim 1, wherein a damping spring (13) is fixedly mounted on the upper surface of the limiting disc (8), and one end of the damping spring (13) far away from the limiting disc (8) is fixedly connected with the inner top wall of the cylindrical groove.

6. The 3D printer of a denture model as claimed in claim 1, wherein a supporting seat (14) is fixedly installed at the bottom end of the cylindrical rod (9), a plurality of anti-skid protrusions are fixedly installed on the lower surface of the supporting seat (14), and a plurality of anti-skid protrusions are arranged on the lower surface of the supporting seat (14) in a rectangular array.

7. The 3D printer of the denture model as claimed in claim 1, wherein a cover plate (15) is rotatably connected to the right side face of the printer body (1) through a hinge, a handle (16) is arranged on the side face of the cover plate (15), an anti-skid rubber sleeve is sleeved on the surface of the handle (16), and a control unit is arranged on the right side face of the printer body (1).

8. The 3D printer of a denture model according to claim 1, characterized in that the upper surface of the placing plate (5) is provided with a first slide rail (17), a separating mechanism (18), a first cylinder (19) and a baffle plate (20);

the number of the first sliding rails (17) is two, the first sliding rails (17) are arranged on the upper surface of the placing plate (5), the baffle plate (20) is arranged at the left end of the upper surface of the placing plate (5), the separating mechanism (18) is arranged between the first sliding rails (17), the left end of the first air cylinder (19) is fixedly connected with the right side of the baffle plate (20), and the right end of the first air cylinder (19) is fixedly connected with the left side of the separating mechanism (18);

the first sliding rail (17) comprises a main body (17-1), inclined planes (17-2) and first rails (17-3), wherein the first sliding rail main body (17-1) is arranged on the upper surface of the placing plate (5), the number of the inclined planes (17-2) is two, the inclined planes (17-2) are arranged at two ends of the first sliding rail main body (17-1), the first rails (17-3) are arranged on the inner side of the first sliding rail main body (17-1), the positions of the two first rails (17-3) correspond to each other, and the opening of each first rail (17-3) faces the inner side;

the separating mechanism (18) comprises a sliding handle (18-1), a connecting rod (18-2) and a cutting shovel (18-3), the sliding handle (18-1) is in sliding connection with the first rail (17-3), the sliding handle (18-1) is detachably arranged at two ends of the connecting rod (18-2) through bolts, the right end of the first air cylinder (19) is connected with the left side of the connecting rod (18-2), the cutting shovel (18-3) is detachably arranged at the bottom of the connecting rod (18-2) through the bolts, grooves (18-4) are respectively formed in the upper surface and the lower surface of the sliding handle (18-1), and round particles are filled between the grooves (18-4) and the first rail (17-3).

9. The 3D printer of a denture model according to claim 1, wherein a dust removing mechanism (21) and a supporting mechanism (22) are further arranged above the placing plate (5), and the dust removing mechanism (21) is arranged at the bottom of the supporting mechanism (22);

the supporting mechanism (22) comprises a second slide rail (22-1), a sliding plate (22-2), a second air cylinder (22-3) and a third air cylinder (22-4);

the number of the second slide rails (22-1) is two, the second slide rails (22-1) are respectively arranged on the inner side wall of the printer body (1) and correspond to each other, a second rail (22-5) is arranged in the second slide rail (22-1), the slide plate (22-2) is in sliding connection with the second rail (22-5), the rear end of the second cylinder (22-3) is fixedly connected to the inner side wall of the printer body (1), the front end of the second cylinder (22-3) is fixedly connected to the side face of the slide plate (22-2), the third cylinder (22-4) is arranged at the bottom of the slide plate (22-2), and the dust removal mechanism (21) is arranged at the bottom of the third cylinder (22-4);

the dust removal mechanism (21) comprises a mechanism body (21-1), a guide path (21-3), a conveying end (21-4), a brush disc (21-5), a leakage-proof passage (21-6), a collection device (21-9), a standby collection device (21-7) and a suction device (21-8);

the guide path (21-3) is arranged inside the mechanism body (21-1), the bottom of the mechanism body (21-1) is provided with a plurality of dust collecting holes (21-2), the conveying end (21-4) is arranged at the upper end of the mechanism body (21-1), the leakage-proof path (21-6) is arranged at the center of the bottom of the mechanism body (21-1), the dust collecting holes (21-2), the conveying end (21-4) and the leakage-proof path (21-6) are respectively in conduction connection with the guide path (21-3), the brush disc (21-5) is arranged at the bottom of the mechanism body (21-1), the brush disc (21-5) is controlled and connected by a motor, and the standby collecting device (21-7) is arranged at the bottom of the leakage-proof path (21-6), the collecting device (21-9) is arranged on the side surface of the mechanism body (21-1) and is in conduction connection with the conveying end (21-4), the suction device (21-8) is arranged between the collecting device (21-9) and the conveying end (21-4), and the top of the mechanism body (21-1) is fixedly connected with the third cylinder (22-4).

10. 3D printer of a denture model according to claim 1, characterized in that the printer body (1) incorporates a scanning program to realize printing, the scanning program being realized according to a predetermined method, the steps of the predetermined method are as follows: