阅读说明：本技术 一种用于制备隐形矫治器的牙颌模型及制备方法、制备系统 (Dental model for preparing invisible appliance, preparation method and preparation system ) 是由 刘大鹏 于 2021-06-17 设计创作，主要内容包括：本发明提出了一种用于制备隐形矫治器的牙颌模型,所述牙颌模型上沿膜片切割路径设有若干向下延伸的引导槽,通过捕捉引导槽上方的隐形矫治器边缘实现隐形矫治器与牙颌模型的快速分离。本发明通过在牙颌模型上开设引导槽,便于实现引导槽上方的矫治器边缘捕捉,从而准确将分离力作用于引导槽上方的隐形矫治器上,避免分离过程对矫正器本体造成的损伤,有效提高牙膜分离效率。基于该牙颌模型,本发明还提出了一种隐形矫治器的制备方法、制备系统。(The invention provides a dental model for preparing an invisible appliance, wherein a plurality of downwards extending guide grooves are formed in the dental model along a diaphragm cutting path, and the invisible appliance is quickly separated from the dental model by capturing the edges of the invisible appliance above the guide grooves. According to the invention, the guiding groove is formed on the dental jaw model, so that the edge of the appliance above the guiding groove can be conveniently captured, the separating force can be accurately applied to the invisible appliance above the guiding groove, the appliance body is prevented from being damaged in the separating process, and the dental membrane separating efficiency is effectively improved. Based on the dental model, the invention also provides a preparation method and a preparation system of the invisible orthodontic appliance.)

1. The utility model provides a tooth jaw model for preparing stealthy ware of rescuing which characterized in that, tooth jaw model goes up along setting for the cutting path and is equipped with a plurality of downwardly extending's guiding groove, realizes the separation of stealthy ware and tooth jaw model through catching the stealthy ware edge of rescuing above the guiding groove.

2. The dental model for preparing the invisible orthodontic appliance is characterized in that 1-6 guide grooves are distributed on the labial side or the lingual side of the dental model.

3. The dental model for preparing invisible appliances of claim 1, wherein the guide grooves are in the shape of a strip or a semicircle.

4. The dental model for preparing the invisible orthodontic appliance is characterized in that an integrally formed connecting plate is arranged at the bottom of the dental model, and an identity code corresponding to the dental model is arranged on the connecting plate.

5. A preparation method of an invisible orthodontic appliance is characterized by comprising the following steps:

s1, realizing rapid molding of the dental model through 3D printing equipment, wherein a plurality of guide grooves extending downwards are formed in the dental model along a set cutting path;

s2, pressing the heated membrane on the dental model to form a formed membrane to be cut;

s3, cutting the formed membrane along a set cutting path to form the invisible appliance to be separated;

and S4, the invisible appliance is separated from the jaw model by catching the edge of the invisible appliance above the guide groove.

6. The method for preparing the invisible orthodontic appliance according to the claim 5, wherein the guide grooves are formed by 3D printing or cutting.

7. The method of claim 5, wherein the set cutting path is calculated by extracting a gum line of the jaw model.

8. A preparation system of an invisible appliance is characterized by comprising the following components:

the forming device is used for printing and forming the dental model, and a plurality of guide grooves extending downwards are formed in the dental model along a set cutting path;

the film pressing device is used for pressing the heated film on the dental jaw model to form a formed film to be cut;

the cutting device is used for cutting the formed membrane along a set cutting path to form the invisible appliance to be separated;

and the separation device is used for capturing the edge of the appliance above the guide groove and realizing the separation of the invisible appliance and the dental model.

9. The preparation system of the invisible appliance, according to claim 8, wherein the separating device comprises a bearing module, a limiting module and a driving module; the bearing module is used for bearing the dental model and the invisible appliance to be separated, the limiting module is arranged around the bearing module and used for realizing the capturing and limiting of the edge of the invisible appliance above the guide groove, and the driving module is used for driving the bearing module to move relative to the limiting module so as to generate separating force to realize the separation of the invisible appliance and the dental model.

10. The preparation system of the invisible appliance according to claim 9, wherein the limiting module comprises a telescopic component and a limiting component, and the limiting component is driven by the telescopic component to elastically contact with the dental model, so that the edge of the invisible appliance above the guide groove is captured and limited.

Technical Field

The invention relates to a dental model for preparing an invisible orthodontic appliance, a preparation method and a preparation system, and belongs to the technical field of orthodontics.

Background

At present, the invisible orthodontic appliance is generally produced by adopting a hot-pressing film forming process, and the whole production process comprises the following steps: the method comprises the steps of obtaining an intraoral digital model of a patient, 3D printing a dental model, cleaning and curing, hot-pressing a formed membrane, edge cutting, dental membrane separation, cleaning, inspection, packaging and the like, and finally forming the required invisible appliance.

In the above preparation process, since the dental film is pressed on the dental model having an uneven surface shape by hot pressing, it is generally difficult to peel the dental film from the dental model. The deformation and damage of the invisible appliance can be caused by the judgment and selection of the separation point position and the collision and sliding of the tool in the separation process, so that the quality of the invisible appliance is influenced significantly.

Therefore, based on the technical problems in the preparation process of the appliance, the technical personnel in the field provide the dental model for preparing the invisible appliance, the preparation method and the preparation system, the guiding grooves are formed in the dental model, so that the edge of the invisible appliance above the guiding grooves can be conveniently captured, the separating force can be accurately applied to the invisible appliance above the guiding grooves, the separating efficiency of the appliance can be effectively improved, and the uncertainty of the separation of the appliance can be reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the dental model for preparing the invisible appliance, the preparation method and the preparation system.

In order to achieve the purpose, the dental model for preparing the invisible appliance is provided with a plurality of downwards extending guide grooves along the cutting path of the diaphragm, and the invisible appliance is separated from the dental model by capturing the edges of the invisible appliance above the guide grooves.

Furthermore, the number of the guide grooves is 1-6, and the guide grooves can be distributed on the labial side or the lingual side of the dental model.

Further, the guide groove can be in a strip shape or a semicircular shape.

Furthermore, the bottom of the dental model is provided with an integrally formed connecting plate, and the shape and the size of the connecting plate are matched with those of the dental model; and the connecting plate is provided with an identity code corresponding to the dental model so as to identify the dental model.

A preparation method of an invisible appliance comprises the following steps:

s1, realizing rapid molding of the dental model through 3D printing equipment, wherein a plurality of guide grooves extending downwards are formed in the dental model along a set cutting path;

s2, pressing the heated membrane on the dental model to form a formed membrane to be cut;

s3, cutting the formed membrane along a set cutting path to form the invisible appliance to be separated;

and S4, the invisible appliance is separated from the jaw model by catching the edge of the invisible appliance above the guide groove.

Furthermore, the guide groove can be formed by 3D printing together with the dental model, and can also be formed by cutting through equipment after the dental model is formed.

Further, the set cutting path is generated by calculation after extracting a gum line of the dental model.

A preparation system of an invisible appliance comprises the following components:

the forming device is used for printing and forming the dental model, and a plurality of guide grooves extending downwards are formed in the dental model along a set cutting path;

the film pressing device is used for pressing the heated film on the dental jaw model to form a formed film to be cut;

the cutting device is used for cutting the formed membrane along a set cutting path to form the invisible appliance to be separated;

and the separation device is used for capturing the edge of the appliance above the guide groove and realizing the separation of the invisible appliance and the dental model.

Furthermore, the separating device comprises a bearing module, a limiting module and a driving module; the bearing module is used for bearing the dental model and the invisible appliance to be separated, the limiting module is arranged around the bearing module and used for realizing the capturing and limiting of the edge of the invisible appliance above the guide groove, and the driving module is used for driving the bearing module to move relative to the limiting module so as to generate separating force to realize the separation of the invisible appliance and the dental model.

Furthermore, spacing module includes flexible subassembly and locating part, through the elastic contact of flexible subassembly drive locating part and tooth jaw model, and then realize the stealthy ware edge of rescuring above the guiding groove and catch and spacing.

Has the advantages that: the invention provides a dental model for preparing an invisible appliance, a preparation method and a preparation system, which have the following advantages:

1. the guiding grooves are formed in the dental jaw model, so that the edge of the appliance above the guiding grooves can be conveniently captured, the separating force can be accurately applied to the invisible appliance above the guiding grooves, the separating efficiency of the appliance is effectively improved, unnecessary damage is reduced, and the instability of manual separation is reduced;

2. through set up integrated into one piece's connecting plate bottom the tooth jaw model, be convenient for realize snatching of tooth jaw model and transport, and be convenient for carry out the quick discernment of tooth jaw model with identification information on the connecting plate, simple structure, manufacturing cost is little, effectively improves production efficiency and machining precision.

Drawings

FIG. 1 is a schematic view of a dental model according to an embodiment of the present invention;

FIG. 2 is a schematic view of the dental model assembled with the universal base in an embodiment of the present invention;

FIG. 3 is a process diagram of a method of making an appliance according to an embodiment of the invention;

FIG. 4 is a schematic view showing the structure of a separation apparatus in an embodiment of the present invention;

the figure includes: 1. the dental jaw model comprises, by weight, 1-1 parts of a dental jaw model, guide grooves, 2 parts of a connecting plate, 3 parts of a universal base, 3-1 parts of an RFID tag, 3-2 parts of a positioning pin, 3-3 parts of a screw, 3-4 parts of a positioning hole, 3-5 parts of an accommodating cavity, 3-6 parts of a steel ball, 4-1 parts of a bearing table, 4-2 parts of a guide rod, 4-3 parts of a reset spring, 4-4 parts of a fixed seat, 4-5 parts of an installation seat, 4-6 parts of a cylinder barrel, 4-7 parts of a push rod, 4-8 parts of a compression spring, 4-9 parts of a thimble, 4-10 parts of a linear module, 4-11 parts of a linear sliding seat, 4-12 parts of a die pressing cylinder, 4-13 parts of a pressing module.

Detailed Description

The following description of the preferred embodiments of the present invention with reference to the accompanying drawings will more clearly and completely illustrate the technical solutions of the present invention.

As shown in figure 1, the dental model for preparing the invisible orthodontic appliance is characterized in that a plurality of downwards extending guide grooves 1-1 are formed in the dental model 1 along a diaphragm cutting path, and the invisible orthodontic appliance is separated from the dental model by capturing edges of the orthodontic appliance above the guide grooves 1-1.

In this embodiment, 3 guide grooves 1-1 are distributed on the labial side (preferably in the directions of molars and incisors on both sides) of the dental model 1; the guide groove 1-1 is strip-shaped, the depth of the guide groove is within 0-5mm, and the guide groove can also be semicircular, fan-shaped and the like so as to facilitate the positioning and catching of the separating device.

According to the invention, the guiding groove is formed on the dental jaw model, so that the edge of the appliance above the guiding groove is captured, the separating force is accurately applied to the invisible appliance above the guiding groove, the appliance body is prevented from being damaged in the separating process, and the separating efficiency of the appliance is effectively improved.

In this embodiment, the bottom of the dental model 1 is provided with an integrally formed connecting plate 2, and the connecting plate 2 can be designed to have a uniform shape and size and is adapted to diversified dental models; the connecting plate is provided with an identity code (not shown in the figure) corresponding to the dental model so as to identify the dental model.

The connecting plates with uniform sizes are arranged at the bottom of the dental model, so that grabbing and transferring of the dental model, information recognition and positioning and assembling of the dental model and the universal base are facilitated, and the production efficiency and the machining precision are effectively improved; the identity code can be any one or any combination of letters, numbers, bar codes and figures, and can be identified by image vision.

As shown in fig. 2, the bottom of the connecting plate 2 is provided with a universal base 3 to improve the positioning precision in the processing process and reduce the loss of the dental cast; the universal base 3 is provided with a positioning pin 3-2 through a screw 3-3, the positioning pin 3-2 is provided with a boss, the bottom of the connecting plate 2 is provided with a connecting hole, an annular groove is arranged in the connecting hole, and the connecting plate 2 is connected with the universal base 3 in a buckling mode through the matching of the annular groove and the boss.

Furthermore, an accommodating cavity 3-5 is formed in the positioning pin 3-2, two steel balls 3-6 are arranged in the accommodating cavity 3-5, the two steel balls 3-6 are connected through a spring, and under the elastic force of the spring, the two steel balls protrude out of the surface of the positioning pin (but cannot fall out of the accommodating cavity) to form an elastic protruding part.

When the tooth jaw model and the universal base are fixed through the positioning pins, the inner wall of the connecting hole extrudes the two steel balls to compress the spring until the steel balls enter the ring groove, and the spring rebounds to enable the steel balls to be attached to the ring groove, so that the buckling connection is realized. This kind of elasticity buckle structure is difficult to cause unnecessary damage to the tooth jaw model on the one hand, reduction in production cost, and on the other hand is convenient for realize the separation of tooth jaw model and general base to carry out the recycling of general base.

Furthermore, the universal base 3 is attached with identification information (such as an RFID tag 3-1) and the RFID tag is bound with the identity information of the dental cast, so that the dental cast can be rapidly identified and distinguished conveniently, individualized product process information can be acquired in real time through communication transmission after identification is completed, and flexible production control is further realized; the bottom of the universal base 3 is also provided with positioning holes 3-4, which is convenient for realizing the processing and positioning of the dental jaw model.

As shown in fig. 3, a method for preparing an invisible orthodontic appliance includes the following steps:

s1, rapidly forming a dental model through 3D printing equipment, and forming a plurality of guide grooves extending downwards on the dental model along a set cutting path;

s2, heating the membrane, and pressing the heated membrane on the dental jaw model to form a formed membrane to be cut;

s3, cutting the formed membrane to be cut along a set cutting path to form the invisible appliance to be separated;

and S4, the invisible appliance is separated from the jaw model by catching the edge of the appliance above the guide groove.

Furthermore, the guide groove can be formed by 3D printing together with the dental model, and can also be formed by cutting through equipment after the dental model is formed. In addition, the guide groove can be cut and molded through equipment after the appliance is cut.

Further, the set cutting path can be generated by calculation after extracting the gum line of the digital model of the jaw. Specifically, the set cutting path may include a covered gumline cutting path or an uncovered gumline cutting path.

Furthermore, the integrally formed connecting plate is arranged at the bottom of the dental model in the step S1, and the universal base is arranged at the bottom of the formed dental model, so that the dental model can be conveniently grabbed by an industrial robot and can be quickly recognized and distinguished.

Based on the preparation method, the preparation system of the invisible appliance comprises the following components:

the forming device is used for printing and forming the dental model, and a plurality of guide grooves extending downwards are formed in the dental model along a set cutting path;

the film pressing device is used for pressing the heated film on the dental jaw model to form a formed film to be cut;

the cutting device is used for cutting the formed membrane along a set cutting path to form the invisible appliance to be separated;

and the separation device is used for capturing the edge of the appliance above the guide groove and realizing the separation of the invisible appliance and the dental model.

Furthermore, the separating device comprises a bearing module, a limiting module and a driving module; the bearing module is used for bearing the dental model and the invisible orthodontic device to be separated, the limiting module is arranged around the bearing module (corresponding to the guide groove in position) and used for realizing the capturing and limiting of the edge of the invisible orthodontic device above the guide groove, and the driving module is used for driving the bearing module to move relative to the limiting module so as to generate separating force to realize the separation of the invisible orthodontic device and the dental model.

Furthermore, spacing module includes flexible subassembly and locating part, through the elastic contact of flexible subassembly drive locating part and tooth jaw model, and then realize that the ware edge is caught and spacing is rescued to guiding groove top.

In order to realize elastic capture of the edge of the appliance, the structure of the limiting module can comprise the following two types: a. the limiting member or the telescopic assembly adopts an elastic element, for example: the limiting part adopts a spring piece, a rubber rod and the like, or the telescopic component adopts a spring cylinder and the like; b. the limiting member is elastically connected with the telescopic assembly, such as a spring connection. Adopt above-mentioned elastic construction, can realize correcting the high-efficient seizure at ware edge, can fully avoid rigid contact to cause the damage to correcting the module again.

As shown in fig. 4, the second elastic structure is adopted in this embodiment, and specifically includes: the telescopic component comprises a linear module 4-10 and a linear sliding seat 4-11, the limiting part adopts an ejector pin structure, a mounting seat 4-5 and a cylinder 4-6 are arranged on the linear sliding seat 4-11, an ejector rod 4-7 penetrates through the cylinder 4-6, the ejector pin 4-9 is fixed at the front end of the ejector rod 4-7, a pressure spring 4-8 is arranged on the ejector rod 4-7 and used for realizing the elastic connection of the ejector rod 4-7 and the mounting seat 4-5, and the linear module 4-10 drives the linear sliding seat 4-11 to slide so as to realize the elastic contact and automatic capture of the ejector pin 4-9 and the edge of the appliance.

In order to realize the separation of correcting the ware and the tooth jaw model, the drive mode of drive module includes: 1) driving the limit module to move to generate a separating force; 2) driving the bearing module to move to generate a separating force; 3) the bearing module and the limiting module are driven to move together to generate separating force together, so that the appliance and the dental model are separated.

The embodiment adopts a second driving method, which specifically includes: the bearing module comprises a bearing table 4-1, a guide rod 4-2, a return spring 4-3 and a fixed seat 4-4, wherein the guide rod 4-2 is arranged on the fixed seat 4-4 in a penetrating way and connected to the bottom of the bearing table 4-1 and is used for realizing the up-and-down movement of the bearing table 4-1 along the inner wall of the fixed seat 4-4; the reset spring 4-3 is sleeved on the guide rod 4-2 and used for realizing the movement reset of the bearing platform 4-1; and the fixed seat 4-4 is provided with a limiting block for limiting the height of the bearing platform 4-1.

The driving module comprises a die pressing cylinder 4-12 and a die pressing block 4-13, the die pressing cylinder 4-12 is mounted above the bearing table 4-1 through a rack, the die pressing block 4-13 is connected to the bottom of a piston rod of the die pressing cylinder 4-12, the die pressing cylinder 4-12 drives the die pressing block 4-13 to press the dental model on the bearing table 4-1, and then separation force is generated to realize separation of the appliance and the dental model.

The separation process of the separation device is as follows:

p1, load orientation: placing the dental model and the invisible appliance to be separated on the bearing table 4-1, and realizing positioning;

p2, elastic Capture: the thimble 4-9 is driven to be in elastic contact with the dental jaw model through the linear module 4-10, so that the edge of the appliance above the guide groove is captured and limited;

p2, drive separation: the die pressing cylinders 4-12 drive the die pressing blocks 4-13 to press the center of the dental model (the center is not covered by the appliance), so that the dental model descends along the inner wall of the fixing seat 4-4, the edge of the appliance is caught by the thimble in the descending process and is limited, the dental model cannot descend along with the appliance, and therefore separating force is generated to realize the separation of the appliance and the dental model.

The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the invention. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.