Pallate bead forming device
By designing the upper and lower halves of the mold, and combining heated polymer materials and positioning structures, the problem of long time required for palatal bead formation in orthodontic appliances has been solved, achieving efficient and precise palatal bead formation.
Patent Information
- Application Number
- CN202422327432.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In existing technologies, the process of shaping the palatal bead on the orthodontic appliance is time-consuming and difficult to achieve the desired spherical effect.
The structure uses an upper and lower mold, and the positioning protrusions and cavities of the mold ensure the accuracy of palatal bead forming. The palatal bead is formed by heating and polymerizing the material. The orthodontic bracket rod is placed using horizontal and vertical grooves, and excess material is discharged to achieve efficient forming.
This significantly shortens the time required for palatal bead formation and ensures a high-precision spherical shape for the palatal bead.
Smart Images
Figure CN223173413U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a medical device, in particular to a palatal bead forming device for an orthodontic appliance. Background Art
[0002] The function of setting palatal beads on an orthodontic appliance is to guide the tongue to be placed in the correct position. Research has found that during the orthodontic treatment process, the tongue habits of the wearer have an important impact on the orthodontics of teeth in the oral cavity, dental arch and craniofacial development. Therefore, it is very necessary to set palatal beads on the orthodontic appliance to guide the tongue to be placed in the correct position.
[0003] In the prior art, the method of setting palatal beads on an orthodontic appliance is as follows: First, bond the material for making palatal beads on the bracket rod of the orthodontic appliance, and then correct the shape of these materials to gradually become spherical. However, the operation process of correcting the material is very time-consuming, and it is difficult to correct the material into an ideal spherical shape. Summary of the Utility Model
[0004] In view of this, the purpose of the utility model is to provide a palatal bead forming device to solve the technical problems of forming palatal beads on an orthodontic appliance, shortening the operation time of palatal bead forming and improving the quality of palatal bead forming.
[0005] The palatal bead forming device of the utility model includes an upper half mold and a lower half mold. The structures of the upper half mold and the lower half mold are the same. Both the upper half mold and the lower half mold include a rectangular block. A hemispherical palatal bead forming cavity is arranged in the middle of the mating surface of the rectangular block. A transverse groove and a vertical groove for placing the bracket rod of the orthodontic appliance are also arranged on the rectangular block. A discharge groove for discharging the redundant material when forming the palatal bead is also arranged on the rectangular block. The transverse groove and the vertical groove are arranged on the mating surface of the rectangular block, and the center lines of the transverse groove and the vertical groove are perpendicular to each other; Mating positioning protrusions and mating positioning cavities are respectively arranged at the four corners of the mating surface.
[0006] Further, the mating positioning protrusions and the mating positioning cavities are hemispherical.
[0007] Advantages of the Utility Model
[0008] For the palatal bead forming device of the utility model, the palatal bead is directly formed on the bracket rod of the orthodontic appliance, which can greatly shorten the time-consuming for making the palatal bead and ensure that the shape of the palatal bead is a high-precision spherical shape. Description of the Drawings
[0009] Figure 1 It is a schematic diagram of the upper half mold and the lower half mold in the closed mold state.
[0010] Figure 2 It is a schematic diagram of the bracket rod of the orthodontic appliance installed on the lower half mold.
[0011] Figure 3It is a three-dimensional schematic diagram of the lower half mold. Specific implementation mode
[0012] The following further describes the present utility model in conjunction with the attached drawings and embodiments.
[0013] As shown in the figure, the palatal bead forming device of this embodiment includes an upper half mold 1 and a lower half mold 2. The structures of the upper half mold and the lower half mold are the same. Both the upper half mold and the lower half mold include a rectangular block 3. A hemispherical palatal bead forming cavity 4 is provided in the middle of the mold closing surface of the rectangular block. A transverse groove 6 and a vertical groove 7 for placing the orthodontic appliance bracket rod 5 are also provided on the rectangular block. A discharge groove 8 for discharging the excess material when forming the palatal bead is also provided on the rectangular block. The transverse groove and the vertical groove are provided on the mold closing surface of the rectangular block, and the center lines of the transverse groove and the vertical groove are perpendicular to each other; Mold closing positioning protrusions 9 and mold closing positioning cavities 10 are respectively provided at the four corners of the mold closing surface. In this embodiment, the mold closing positioning protrusions and the mold closing positioning cavities are hemispherical. Of course, in different embodiments, they can also be made into other shapes such as cylindrical.
[0014] The process of making palatal beads using the palatal bead forming device in this embodiment is as follows:
[0015] First step, add the materials for forming the palatal bead, methyl methacrylate (liquid) and polymethyl methacrylate (powder), into the palatal bead forming cavity 4 in sequence, adding in the way of one layer of liquid and one layer of powder. Then heat the materials in the palatal bead forming cavity 4 to cause the polymerization reaction of methyl methacrylate and polymethyl methacrylate. As the temperature rises, the viscosity of the materials in the palatal bead forming cavity 4 increases and the fluidity decreases.
[0016] Second step, install the orthodontic appliance bracket rod 5 into the transverse groove 6 and the vertical groove 7 on the lower half mold 2.
[0017] Third step, buckle the upper half mold 1 on the lower half mold 2 so that the materials in the upper and lower palatal bead forming cavities 4 are polymerized into one body. In the buckled state, the mold closing positioning protrusion 9 of the upper half mold 1 is embedded in the mold closing positioning cavity 10 of the lower half mold 2, ensuring the correctness of the mold closing position. And during the buckling process, the excess material in the palatal bead forming cavity 4 is squeezed into the discharge groove 8.
[0018] Fourth step, separate the upper half mold 1 and the lower half mold 2 after the materials are cooled.
[0019] Fifth step, remove the burrs of the palatal bead at the mold closing surface and the excess material at the discharge groove 8, and polish it smoothly, that is, a high-precision spherical palatal bead is made on the orthodontic appliance bracket rod 5.
[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A palatal bead forming device, characterized in that: It includes an upper half mold and a lower half mold. The structures of the upper half mold and the lower half mold are the same. Both the upper half mold and the lower half mold include rectangular blocks. A hemispherical palate bead forming cavity is provided in the middle of the mating surface of the rectangular block. Transverse grooves and vertical grooves for placing the orthodontic appliance bracket rods are also provided on the rectangular block. A discharge groove for discharging the excess material when forming the palate beads is also provided on the rectangular block. The transverse grooves and the vertical grooves are arranged on the mating surface of the rectangular block, and the center lines of the transverse grooves and the vertical grooves are perpendicular to each other. Mating positioning protrusions and mating positioning cavities are respectively provided at the four corners of the mating surface.
2. The palatal bead forming device according to claim 1, wherein: The mating positioning protrusions and the mating positioning cavities are hemispherical.