Orthodontic archwire former
By using a decomposed archwire forming device with an annular stepped design of a fixed ring and an adjusting ring, the problems of low precision and high tool wear in existing dental archwire forming devices are solved, achieving efficient and accurate archwire forming, and suitable for various torque requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XINGCHEN 3B DENTAL INSTR & MATERIAL CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-21
Smart Images
Figure CN224523293U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an archwire forming device, specifically an orthodontic archwire forming device. Background Technology
[0002] With the increasing market demand and popularity of orthodontic treatment, the demand for fixed braces is also increasing year by year. Fixed orthodontic treatment often requires square stainless steel archwires with a certain torque. However, there are currently few archwire formulators with torque on the market. Even those that exist often have significant differences in angle or groove dimensions, resulting in large errors in the fabricated archwires. This affects the orthodontic treatment effect and efficiency, prolongs the treatment period, and leads to dissatisfaction from both doctors and patients. The main reason is that the annular groove of the archwire formulator with torque has a semi-open structure with a narrow groove width, requiring high design precision. Furthermore, machining such a small semi-open structure on stainless steel requires high-precision cutting tools, which are prone to damage and high wear during processing. Crucially, the dimensions of the machined grooves often exceed tolerances—either the torque is incorrect, or the groove width or depth is incorrect, failing to meet design requirements and resulting in a high scrap rate. Therefore, this paper proposes an orthodontic archwire formulator. Utility Model Content
[0003] The purpose of this invention is to provide an orthodontic archwire forming device to solve the above problems.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an orthodontic archwire forming device, comprising a fixed handle, a forming component disposed on the fixed handle, a mandrel movably connected to the forming component, a rotating handle connected to the mandrel, and a pressure pin disposed on the rotating handle and arranged parallel to the mandrel; characterized in that the forming component includes a connecting part connected to the fixed handle, an adjusting threaded section disposed on the connecting part, a fixing ring mounted on the adjusting threaded section, at least one adjusting ring mounted on the adjusting threaded section, and a locking ring mounted on the adjusting threaded section for fixing the adjusting ring and the fixing ring; further comprising an annular step disposed on at least one side of the fixing ring and the adjusting ring, wherein the annular steps on the opposite side of the fixing ring and the adjusting ring, and on the opposite side of the adjusting ring, form an annular square wire groove with adjustable width when engaged.
[0005] A further preferred embodiment includes a guide positioning platform disposed on the connecting part, the fixing ring, and the adjusting ring.
[0006] Further preferably, it also includes an annular step with an angle provided on the fixed ring and the adjusting ring, forming an annular square wire groove with adjustable width and angular torque when the fixed ring and the adjusting ring are engaged on opposite sides.
[0007] A further preferred embodiment includes a limiting groove on the fixed handle that limits one end of the pressure needle and prevents one end from lifting up when the pressure needle presses the wire.
[0008] The beneficial effects of this utility model are as follows: By adopting a decomposable structure for the bow wire forming device, the forming part is composed of a fixed ring and several adjusting rings. At the same time, by machining annular steps on the sides of the fixed ring and adjusting rings, annular square wire grooves are formed after the fixed ring and adjusting rings or adjusting rings are fitted together. The annular steps on the fixed ring and adjusting rings are fully open structures. Under fully open machining conditions, it is easy to perform machining, while the machining accuracy is high, the tool wear is small, and the machining efficiency is high. Meanwhile, by setting several adjusting rings, annular steps of different angles can be machined on the adjusting rings during processing. Then, after the two adjusting rings are matched on opposite sides, annular square wire grooves with different torque are formed. When designing and processing bowwires with various torques, the adjusting rings with corresponding annular steps can be replaced. By adding adjusting rings, multiple torque functions can be achieved on one forming machine, making it widely applicable. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a partially enlarged structural schematic diagram of this utility model.
[0010] Legend: 1. Fixed handle; 2. Molded part; 21. Connecting part; 22. Adjusting thread section; 23. Fixed ring; 24. Adjusting ring; 25. Locking ring; 26. Annular step; 27. Annular square wire groove; 28. Guide positioning table; 3. Mandrel; 4. Rotating handle; 41. Pressing needle; 5. Limiting groove. Detailed Implementation
[0011] The following description, in conjunction with the accompanying drawings, further illustrates the orthodontic archwire forming device of this utility model.
[0012] It should be noted that all directional indicators such as up, down, left, right, front, back, etc. in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicator will also change accordingly.
[0013] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly; for example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can also mean a mechanical connection, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0014] See Figures 1-3 As shown, an orthodontic archwire forming device includes a fixed handle 1, a forming component 2 disposed on the fixed handle 1, a mandrel 3 movably connected to the forming component 2, a rotating handle 4 connected to the mandrel 3, and a pressure needle 41 disposed on the rotating handle 4 and arranged parallel to the mandrel 3; characterized in that the forming component 2 includes a connecting part 21 connected to the fixed handle 1, an adjusting threaded section 22 disposed on the connecting part 21, a fixing ring 23 mounted on the adjusting threaded section 22, at least one adjusting ring 24 mounted on the adjusting threaded section 22, and a locking ring 25 mounted on the adjusting threaded section 22 for fixing the adjusting ring 24 and the fixing ring 23; it also includes an annular step 26 disposed on at least one side of the fixing ring 23 and the adjusting ring 24, the annular step 26 on the opposite side of the fixing ring 23 and the adjusting ring 24 and the opposite side of the adjusting ring 24 forming an annular square wire groove 27 with adjustable width when engaged; The connecting part 21 can be fixedly connected to the fixed handle 1 by thread; one end of the spindle 3 can be connected to the rotating handle 4 by thread or welding; the pressure needle 41 can be installed on the rotating handle 4 by thread or welding. By adopting a decomposable structure for the bowwire forming device, the forming part 2 is constructed by using a fixed ring 23 and several adjusting rings 24. At the same time, annular steps 26 are machined on the sides of the fixed ring 23 and the adjusting rings 24. After the fixed ring 23 and the adjusting rings 24 or the adjusting rings 24 are fitted together, annular square wire grooves 27 are formed. The annular steps 26 on the fixed rings 23 and the adjusting rings 24 are fully open structures. Under fully open machining conditions, it is easy to perform machining, while the machining accuracy is high, the tool wear is small, and the machining efficiency is high. When adjusting the width of the square wire groove of the adjusting ring 24, simply change the distance between the adjusting ring 24 and the fixed ring 23 or between the adjusting ring 24 and the adjusting ring 24. After the groove width is adjusted, locking the locking ring 25 will stabilize the relative position of the fixed ring 23 and the adjusting ring 24.
[0015] In one embodiment, a guide positioning platform 28 is also provided on the connecting part 21, the fixing ring 23 and the adjusting ring 24; it plays a guiding and supporting role in the installation of the fixing ring 23 and the adjusting ring 24.
[0016] In one embodiment, it further includes an annular step 26 with an angle provided on the fixed ring 23 and the adjusting ring 24, and an annular square wire groove 27 with adjustable width and angular torque formed on the opposite side of the fixed ring 23 and the adjusting ring 24 and the opposite side of the adjusting ring 24 when they are engaged. Meanwhile, by setting several adjusting rings 24, annular steps 26 of different angles can be machined on the adjusting rings 24 during processing. Then, after the two adjusting rings 24 are matched on opposite sides, annular square wire grooves 27 with different torque are formed. When designing and processing bowwires with various torques, the adjusting rings 24 with corresponding angle annular steps 26 can be replaced. By adding adjusting rings 24, multiple torque functions can be achieved on one forming machine, which has wide applicability. In one embodiment, a limiting groove 5 is provided on the fixed handle 1 to limit one end of the pressure needle 41 and prevent one end from lifting up when the pressure needle 41 is pressing the wire. By setting the limiting groove 5, one end of the pressing needle 41 is limited and guided, and at the same time, the other end of the pressing needle 41 is blocked when the pressing needle 41 is pressing the wire, so as to avoid deformation caused by lifting during the pressing.
[0017] In use, the following steps are taken: First, select the appropriate angle adjustment ring 24 according to the torque and install it on the adjustment thread section 22 via threads. At the same time, adjust the groove width according to the size of the archwire. After the groove width is adjusted, tighten the locking ring 25 to stabilize the relative position of the fixing ring 23 and the adjustment ring 24. When forming the archwire, place the stainless steel square wire into the annular square wire groove 27, and place the pressure needle 41 on it. Hold the fixing handle 1 with one hand and rotate the handle 4 with the other hand. The pressure needle 41 presses the stainless steel wire, thereby gradually forming the stainless steel square wire into an arc shape.
[0018] The scope of protection of this utility model is not limited to the above embodiments and their variations. Conventional modifications and substitutions made by those skilled in the art based on the content of these embodiments are all within the scope of protection of this utility model.
Claims
1. An orthodontic archwire forming device, comprising a fixed handle (1), a forming element (2) disposed on the fixed handle (1), a mandrel (3) movably connected to the forming element (2), a rotating handle (4) connected to the mandrel (3), and pressure pins (41) disposed on the rotating handle (4) and arranged parallel to the mandrel (3); characterized in that The molded part (2) includes a connecting part (21) connected to a fixed handle (1), an adjusting thread section (22) disposed on the connecting part (21), a fixing ring (23) mounted on the adjusting thread section (22), at least one adjusting ring (24) mounted on the adjusting thread section (22), and a locking ring (25) mounted on the adjusting thread section (22) for fixing the adjusting ring (24) and the fixing ring (23); it also includes an annular step (26) disposed on at least one side of the fixing ring (23) and the adjusting ring (24), and the annular step (26) on the opposite side of the fixing ring (23) and the adjusting ring (24) and the opposite side of the adjusting ring (24) form an annular square wire groove (27) with adjustable width when they are engaged.
2. The orthodontic archwire forming device according to claim 1, characterized in that: It also includes a guide positioning platform (28) provided on the connecting part (21), the fixing ring (23) and the adjusting ring (24).
3. The orthodontic archwire forming device according to claim 1, characterized in that: It also includes an annular step (26) with an angle provided on the fixed ring (23) and the adjusting ring (24), and an annular square wire groove (27) with adjustable width and angular torque formed on the opposite side of the fixed ring (23) and the adjusting ring (24) and the opposite side of the adjusting ring (24) when they are engaged.
4. The orthodontic archwire forming device according to claim 1, characterized in that: It also includes a limiting groove (5) set on the fixed handle (1) to limit one end of the pressure needle (41) and prevent one end from lifting up when the pressure needle (41) is pressing the wire.