Orthodontic wire bending device

Patent metadata

Field	Value
Publication number	US-11925969-B2
Application number	US-201915734815-A
Country	US
Kind code	B2
Filing date	Jun 3, 2019
Priority date	Jun 4, 2018
Publication date	Mar 12, 2024
Grant date	Mar 12, 2024

Abstract

An orthodontic wire bending device includes a providing part, a bending unit and a cutting part. The providing part is configured to provide a wire. The bending unit is disposed at a front side of the providing part, and includes a fixing part and a bending part. The fixing part is configured to fix the wire. The bending part is configured to bend the wire fixed by the fixing part. The cutting part is configured to cut the wire bent by the bending part. The bending part includes a bending module, and the bending module is rotated along a circumferential direction or moves along a direction to make contact with at least one side of the wire for bending the wire.

First claim

What is claimed is:

1. A bending device comprising:
a providing part configured to provide a wire;
a bending unit disposed at a front side of the providing part, and comprising a fixing part and a bending part, the fixing part being configured to fix the wire, the bending part being configured to bend the wire fixed by the fixing part;
a cutting part configured to cut the wire bent by the bending part; and
a guide jig part having an upper jig and a lower jig opposite to the upper jig in a direction crossing a moving direction of the wire from the providing part toward the bending unit,
wherein
the bending part comprises a bending module, and the bending module is rotated along a circumferential direction or moves along a direction different from the circumferential direction to make contact with at least one side of the wire for bending the wire, and
each of the upper jig and the lower jig has a plate shape extending in the moving direction of the wire to sandwich the wire bent by the bending unit.

2. The bending device of claim 1 , wherein the providing part comprises at least one providing unit having a plurality of guide rollers, and the guide rollers are configured to guide the wire to move in the moving direction.

3. The bending device of claim 2 , wherein a guiding groove is formed at each of the guide rollers to guide the wire, and the guiding groove is formed to be concaved along a circumferential direction of each of the guide rollers.

4. The bending device of claim 2 , wherein the providing part comprises:
a belt configured to be driven in the guiding rollers to provide a driving force to the guiding rollers; and
a driving roller configured to provide a driving force to the belt.

5. The bending device of claim 1 , wherein the providing part comprises a first fixing unit configured to fix the wire, and a guide unit in which the first fixing unit is slid,
wherein the wire is provided according to the sliding of the first fixing unit.

6. The bending device of claim 5 , wherein the providing part further comprises:
a second fixing unit disposed at a rear side of the first fixing unit, to position the wire from outside to a predetermined position; and
a guide frame configured to fix the guide unit.

7. The bending device of claim 6 , wherein the second fixing unit comprises a rotating part configured to move the wire from the predetermined position toward the first fixing unit.

8. The bending device of claim 1 , wherein the cutting part comprises a cutter disposed at a front side or a rear side of the fixing part and having at least one cutting blade.

9. The bending device of claim 8 , wherein the cutting blade is a triple blade configured for cutting the wire from three directions at the same time, or a double blade configured for cutting the wire from two directions at the same time.

10. The bending device of claim 8 , wherein the cutting part further comprises:
a wheel having saw teeth formed at an inner surface of the wheel; and
a cutting driving part configured to rotate the wheel,
wherein the cutting part is configured to rotate along the inner surface of the wheel to cut the wire.

11. The bending device of claim 1 , wherein the cutting part is configured to irradiate a laser to the wire to cut the wire.

12. The bending device of claim 8 , further comprising:
a linear moving part having a combining member connected to the cutting part, to move the cutting part toward the wire,
wherein the combining member is connected to the cutting part along a diagonal direction, and the cutting part is configured to move toward the wire along the diagonal direction.

13. The bending device of claim 1 ,
wherein the upper jig and the lower jig overlap with each other by a predetermined gap to allow the wire bent by the bending unit to be fixed and extend in the predetermined gap between the upper jig and the lower jig.

14. The bending device of claim 13 , wherein a guide groove is formed at the upper jig and the lower jig, and the bending unit and the cutter of the cutting part are disposed at the guide groove.

15. The bending device of claim 13 , wherein the lower jig comprises a first lower plate and a second lower plate detachably combined with each other with respect to a boundary surface,
wherein the first lower plate rotates with respect to the second lower plate, to move the wire fixed between the upper jig and the lower jig downwardly in a direction crossing the moving direction of the wire.

16. The bending device of claim 13 , wherein the upper jig has a transparent material, and a vision part is disposed over the upper jig to monitor the wire through the upper jig.

17. The bending device of claim 1 , wherein the fixing part comprises:
a fixing jig configured to fix the wire; and
at least a pair of fixing tips arranged in a line to fix the wire when the wire passes through and is discharged from the fixing Jig.

18. The bending device of claim 17 , wherein the fixing part further comprises:
a guide pin disposed under the wire, extending a direction substantially perpendicular to a discharged direction of the wire, and making contact with the wire.

19. The bending device of claim 1 , wherein the bending part comprises a base and a bending bar,
wherein the bending bar is protruded from the base and is positioned at both sides of the wire for bending the wire,
wherein the bending bar is selectively disposed at one of both sides of the wire, via a z-motion.

20. The bending device of claim 19 , wherein the bending bar moves forward or backward along the moving direction of the wire, to change a rotational center of the wire.

Assignees

• Korea Inst Mach & Materials

Inventors

• Song Joonyub
• Kim Yongjin
• Jung Youn Ho
• Choi Kwang Sun
• Lee Jae-Hak
• Kim Seung Man

Classifications

• B21F1/004 Primary

  by means of press-type tooling · CPC title

• A61C7/02

  Tools for manipulating or working with an orthodontic appliance {(tools for placement of brackets A61C7/146; instruments for attaching elastic bands A61C7/306)} · CPC title

• A61C7/002 Primary

  Orthodontic computer assisted systems · CPC title

• A61C7/20

  Arch wires (A61C7/28 takes precedence) · CPC title

• B21F23/00

  Feeding wire in wire-working machines or apparatus · CPC title