Orthodontic square wire preparation device for batch and personalized production

Abstract

The utility model relates to the technical field of orthodontic square wire preparation, in particular to an orthodontic square wire preparation device for batch and personalized production, which comprises a punching machine. A stamping male die is fixedly connected to the stamping end of a hydraulic push rod on the stamping machine, a stamping female die is fixed to the upper surface of a stamping table on the stamping machine, and a collecting box is arranged at the bottom end of the stamping table. A stamping plate is movably placed between the stamping male die and the stamping female die, and plate collecting and releasing assemblies are arranged at the two ends of the stamping plate. The complex process that multiple sets of jigs are needed for preparing the square wires in the traditional process is avoided, orthodontic square wires of different specifications can be prepared only by changing the sizes of the stamping male die and the stamping female die for plates of the same thickness, the machining efficiency of the orthodontic square wires is improved, the production cost is reduced, the production process is simplified, and very high market popularization value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of orthodontic rectangular wire preparation, in particular to an orthodontic rectangular wire preparation device for batch and personalized production. Background Technique

[0002] Orthodontic rectangular wires are used to control the torque expression of teeth. Commonly used orthodontic rectangular wires in clinical practice include nickel-titanium wires, copper-nickel-titanium wires, titanium-molybdenum wires, and stainless-steel wires. Nickel-titanium wires have low yield strength and elastic modulus, the largest resilience, and can generate continuous and constant orthodontic forces. Due to the addition of copper elements, copper-nickel-titanium wires have a unique resilience advantage of low hysteresis, enabling them to provide continuous and stable orthodontic forces even with very small deformations, ensuring effective tooth movement. The stiffness of titanium-molybdenum wires (also known as TMA wires) is between that of nickel-titanium wires and stainless-steel wires. It is often used as an intermediate choice between stainless-steel wires and nickel-titanium wires, with good elasticity and can be used in all stages of tooth orthodontics. That is, it can be used to close gaps and adjust the Spee curve in the early stage of orthodontics, control the three-dimensional direction of teeth in the middle stage, and provide appropriate forces for fine adjustment of teeth in the late stage. Stainless-steel wires have the highest yield strength and elastic modulus but the lowest resilience and are commonly used for fine adjustment of teeth and arch retention in the late stage of orthodontics.

[0003] Orthodontic rectangular wires are usually prepared by drawing or rolling techniques to produce rectangular wires of different sizes, and then wound around an arch mold for heat setting. To prepare rectangular wires of different sizes, a complete set of processing tools needs to be selected according to the material of the rectangular wire. During the processing, the change in the size of the rectangular wire needs to be strictly controlled until the rectangular wire of the target size is prepared. There are a large number of specifications for rectangular wires used in clinical practice. More than a dozen common specifications are shown in Table 1. The size in the thickness direction is 0.014 / 0.016 / 0.017 / 0.018 / 0.019 / 0.021 inch, and the size in the width direction is 0.016 / 0.018 / 0.022 / 0.025 inch.

[0004] Table 1. Statistical table of common specification sizes of orthodontic rectangular wires

[0005] Specification Thickness, mm Width, mm 0.014×0.022 inch 0.36 0.56 0.014×0.025 inch 0.36 0.64 0.016×0.016 inch 0.41 0.41 0.016×0.022 inch 0.41 0.56 0.016×0.025 inch 0.41 0.64 0.017×0.022 inch 0.43 0.56 0.017×0.025 inch 0.43 0.64 0.018×0.018 inch 0.46 0.46 0.018×0.022 inch 0.46 0.56 0.018×0.025 inch 0.46 0.64 0.019×0.025 inch 0.48 0.64 0.021×0.025 inch 0.53 0.64

[0006] In recent years, with the continuous development of orthodontic techniques, new requirements for rectangular wire specifications such as 0.019×0.014 inch and 0.025×0.014 inch (the thickness direction and width direction are reversed) have emerged. Facing different clinical treatment requirements, a set of processing tools needs to be designed separately for rectangular wires of various target sizes. Moreover, during the preparation of rectangular wires, the tools will undergo natural wear during the processing and need to be replaced regularly. The processing process is cumbersome, the efficiency is low, and the batch production cost is high.

[0007] Based on this, in order to improve the processing efficiency of orthodontic rectangular wires for oral orthodontics, reduce production costs, and simplify the production process, it is necessary to design a preparation device for orthodontic rectangular wires for batch and personalized production. Summary of the Utility Model

[0008] The utility model solves the problems of cumbersome processing process, low efficiency, and high batch production cost when preparing orthodontic rectangular wires by existing drawing or rolling technologies, and provides a preparation device for orthodontic rectangular wires for batch and personalized production.

[0009] The utility model is realized by adopting the following technical scheme:

[0010] A preparation device for orthodontic rectangular wires for batch and personalized production includes a stamping machine; the stamping end of the hydraulic push rod on the stamping machine is fixedly connected with a stamping punch, the upper surface of the stamping table on the stamping machine is fixed with a stamping die, and a material receiving box is arranged at the bottom end of the stamping table; a stamping plate is movably placed between the stamping punch and the stamping die, and material plate winding and unwinding assemblies are arranged at both ends of the stamping plate.

[0011] The stamping punch includes an upper mounting block fixedly connected with the hydraulic push rod, and an arc-shaped stamping plate is integrally and fixedly connected to the bottom end of the upper mounting block. The stamping die includes a lower mounting block fixedly connected with the stamping table, and a stamping concave hole that is in fitting and matching with the stamping plate is penetrated and opened on the lower mounting block, and the stamping concave hole is communicated with the material receiving box.

[0012] Further, the material plate winding and unwinding assemblies include a material plate winding reel and a material plate unwinding reel. One end of the stamping plate is wound around the material plate winding reel, and the other end is wound around the material plate unwinding reel. A driving motor is installed at the end of the material plate winding reel, and the output end of the driving motor is fixedly connected with the material plate winding reel. The stamping machine is located between the material plate winding reel and the material plate unwinding reel, and two groups of limiting assemblies distributed left and right are fixedly installed on the stamping machine. The limiting assemblies include an upper limiting strip and a lower limiting strip, and the stamping plate slides between the upper limiting strip and the lower limiting strip.

[0013] Further, the stamping plate includes a heat-treated nickel-titanium alloy plate, a heat-treated TMA plate, and a heat-treated stainless steel plate;

[0014] The heat-treated nickel-titanium alloy plate includes a super-elastic heat-treated nickel-titanium alloy plate and a thermally activated heat-treated nickel-titanium alloy plate; the nickel-titanium alloy plate includes a nickel-titanium plate and a copper-nickel-titanium plate.

[0015] Further, according to the shape of the oral cavity, the stamping plate includes a standard stamping plate and a personalized stamping plate; the standard stamping plate includes an oval stamping plate that fits the oral cavity, a natural-shaped stamping plate, a square-round stamping plate, a universal-shaped stamping plate, a pointed-round stamping plate, and a lingual-side stamping plate.

[0016] Further, according to the target size of the orthodontic rectangular wire, the thickness of the stamping sheet includes 0.014 inch, 0.016 inch, 0.017 inch, 0.018 inch, 0.019 inch, 0.020 inch, and 0.021 inch.

[0017] Further, according to the target size of the orthodontic rectangular wire, the width of the stamping plate includes 0.016 inch, 0.017 inch, 0.018 inch, 0.020 inch, 0.022 inch, and 0.025 inch.

[0018] The structure of the present utility model is reasonably designed and reliable, avoiding the cumbersome process of preparing rectangular wires with multiple sets of jigs in the traditional process. For plates of the same thickness, different specifications of orthodontic rectangular wires can be prepared only by changing the sizes of the stamping punch and the stamping die, improving the processing efficiency of oral orthodontic rectangular wires, reducing production costs, simplifying the production process, and having high market promotion value. Further, this device not only meets the production needs of batch-produced arch-shaped rectangular wires commonly used clinically but also can meet the production needs of small-batch arch-shaped rectangular wires with personalized designs that are not commonly used clinically. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of the present utility model;

[0020] Figure 2 is a schematic structural view of the stamping punch in the present utility model;

[0021] Figure 3 is a schematic structural view of the stamping die in the present utility model.

[0022] In the figure: 1 - stamping machine, 2 - hydraulic push rod, 3 - stamping punch, 4 - stamping table, 5 - stamping die, 6 - material receiving box, 7 - stamping sheet, 8 - upper mounting block, 9 - stamping plate, 10 - lower mounting block, 11 - stamping concave hole, 12 - upper limit strip, 13 - lower limit strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] An oral orthodontic rectangular wire preparation device for batch and personalized production, as shown in the attached Figure 1 figure: It includes a stamping machine 1; the stamping end of the hydraulic push rod 2 on the stamping machine 1 is fixedly connected with a stamping punch 3, the upper surface of the stamping table 4 on the stamping machine 1 is fixed with a stamping die 5, and a material receiving box 6 is arranged at the bottom end of the stamping table; a stamping sheet 7 is movably placed between the stamping punch 3 and the stamping die 5, and sheet material winding and unwinding assemblies are arranged at both ends of the stamping sheet 7;

[0024] The stamping punch 3 includes an upper mounting block 8 fixedly connected to the hydraulic push rod 2. The bottom end of the upper mounting block 8 is integrally and fixedly connected with a stamping plate 9 in an arc shape. The stamping die 5 includes a lower mounting block 10 fixedly connected to the stamping table 4. A stamping concave hole 11 that is fitted and matched with the stamping plate 9 is penetrated through the lower mounting block 10. The stamping concave hole 11 communicates with the material receiving box 6.

[0025] The utility model utilizes the characteristics of the punching machine 1 that it can perform blanking and repetitive operations, adopts the stamping punch 3 and the stamping die 5, and punches the stamping sheet 7 into a plurality of bow-shaped orthodontic square wires that are consistent with the shape of the stamping plate 9. According to the sizes of several common orthodontic square wires on the market, a variety of stamping plates 9 with different widths are pre-prepared. And before blanking, the stamping sheet 7 is heat-treated, eliminating the need for secondary heat treatment of the orthodontic square wire that is subsequently stamped into the target size, simplifying the production process; therefore, by changing the width of the stamping plate 9 and the thickness of the stamping sheet 7, batch orthodontic square wires of the target size can be obtained. After subsequent polishing, they can be directly used clinically; further, according to the needs of special patients, personalized stamping plates 9 and stamping concave holes 11 can be customized to obtain bow-shaped orthodontic square wires that meet the personalized design, not only improving the preparation efficiency of standard orthodontic square wires and personalized orthodontic square wires, but also greatly reducing the preparation cost, while ensuring the qualification rate of its finished products and the quality of the finished orthodontic square wires.

[0026] As shown in the Figure 1 attachment: The sheet material winding and unwinding assembly includes a sheet material winding drum and a sheet material unwinding drum. One end of the stamping sheet 7 is wound around the sheet material winding drum, and the other end is wound around the sheet material unwinding drum. And a driving motor is installed at the end of the sheet material winding drum. The output end of the driving motor is fixedly connected to the sheet material winding drum. The punching machine 1 is located between the sheet material winding drum and the sheet material unwinding drum. Two groups of limiting components distributed left and right are fixedly installed on the punching machine 1. The limiting components include an upper limiting strip 12 and a lower limiting strip 13. The stamping sheet 7 slides between the upper limiting strip 12 and the lower limiting strip 13.

[0027] The sheet material winding and unwinding assembly realizes the mechanical blanking of the stamping sheet material 7, eliminating the need for manual operations such as winding, unwinding, and positioning. The driving motor drives the rotation of the sheet material winding drum, thereby winding the stamping sheet material 7 around the sheet material winding drum. At the same time, the stamping sheet material 7 between the stamping punch 3 and the stamping die 5 moves forward. After moving a certain distance, it stops. Then, the hydraulic push rod 2 on the stamping machine 1 drives the stamping plate 9 to press down, blanking the stamping sheet material 7 into the shape of the stamping plate 9, and it falls through the stamping concave hole 11 into the receiving box 6 below for collection. When the hydraulic push rod 2 on the stamping machine 1 rises, the driving motor drives the rotation of the sheet material winding drum, winding the blanked stamping sheet material 7 around the sheet material winding drum. At the same time, the stamping sheet material 7 on the sheet material unwinding drum is released by the pulling of the sheet material winding drum and moves towards the stamping machine 1. It realizes the mechanical repeated blanking of the stamping sheet material 7, greatly improving the preparation efficiency of the arch orthodontic square wire.

[0028] The stamping sheet material 7 includes a heat-treated nickel-titanium alloy sheet, a heat-treated TMA sheet, and a heat-treated stainless steel sheet.

[0029] The heat-treated nickel-titanium alloy sheet includes a superelastic heat-treated nickel-titanium alloy sheet and a thermally activated heat-treated nickel-titanium alloy sheet. The nickel-titanium alloy sheet includes a nickel-titanium sheet and a copper-nickel-titanium sheet.

[0030] When preparing a superelastic nickel-titanium square wire or a copper-nickel-titanium square wire, the nickel-titanium sheet or copper-nickel-titanium sheet with the target thickness is pre-treated by superelastic heat treatment to exhibit superelastic characteristics at room temperature. When preparing a thermally activated nickel-titanium square wire or a copper-nickel-titanium square wire, the nickel-titanium sheet or copper-nickel-titanium sheet with the target thickness is pre-treated by thermally activated heat treatment to exhibit thermally activated characteristics at room temperature. When preparing a TMA square wire or a stainless steel square wire, the TMA sheet and the stainless steel sheet are pre-treated by heat treatment. The purpose of the heat treatment is to avoid secondary heat treatment of the square wire after subsequent stamping into a finished product, simplifying the production process.

[0031] As shown in Figure 2 and Figure 3 shown: According to the shape of the oral cavity, the stamping plate 9 includes a standard stamping plate and a personalized stamping plate. The standard stamping plate includes an oval stamping plate that fits the oral cavity, a natural-shaped stamping plate, a square-round stamping plate, a universal stamping plate, a pointed-round stamping plate, and a lingual stamping plate. The personalized stamping plate is a bow shape designed according to the characteristics of the patient's dental arch.

[0032] The structural design of the standard stamping plate and the personalized stamping plate not only meets the production needs of mass-produced arch-shaped square wires commonly used in clinics but also can meet the production needs of small-batch arch-shaped square wires that are not commonly used in clinics with personalized design.

[0033] According to the target dimensions of the orthodontic rectangular wire, the thickness of the stamping sheet 7 includes 0.014 inch, 0.016 inch, 0.017 inch, 0.018 inch, 0.019 inch, 0.020 inch, 0.021 inch.

[0034] According to the target dimensions of the orthodontic rectangular wire, the width of the stamping plate 9 includes 0.016 inch, 0.017 inch, 0.018 inch, 0.020 inch, 0.022 inch, 0.025 inch.

[0035] Example 1

[0036] Prepare a superelastic 0.017×0.025 inch oval upper tooth nickel-titanium rectangular wire, and the steps are as follows:

[0037] Step S1: Prepare a nickel-titanium sheet with a thickness of 0.017 inch in advance, and perform superelastic heat treatment on it to make it exhibit superelastic characteristics at room temperature.

[0038] Step S2: Select the stamping punch 3 and stamping die 5 for the oval upper teeth as the stamping dies. The width of the stamping plate 9 is 0.025 inch, and assemble them to the upper chuck and lower base of the stamping machine 1 respectively.

[0039] Step S3: Place the pre-prepared nickel-titanium sheet with a thickness of 0.017 inch and superelasticity on the stamping die 5, and the nickel-titanium sheet is located between the upper limit strip 12 and the lower limit strip 13. Start the stamping machine 1, and the hydraulic push rod 2 drives the stamping punch 3 to move downward. After the stamping operation, the superelastic 0.017×0.025 inch oval upper tooth nickel-titanium rectangular wire falls into the material receiving box 6, and the preparation is completed.

[0040] Step S4: Start the drive motor, and the drive motor drives the sheet material winding reel to rotate, thereby winding the nickel-titanium sheet around the sheet material winding reel. At the same time, the nickel-titanium sheet between the stamping punch 3 and the stamping die 5 moves forward. After moving a certain distance, stop, and start the stamping machine 1 again for blanking operation to complete batch preparation.

[0041] Example 2

[0042] Prepare a thermally activated 0.014×0.025 inch universal copper-nickel-titanium rectangular wire, and the steps are as follows:

[0043] Step S1: Prepare a copper-nickel-titanium sheet with a thickness of 0.014 inch in advance, and perform thermally activated heat treatment on it to make it exhibit thermally activated characteristics at room temperature.

[0044] Step S2: Select a general-shaped stamping punch 3 and a stamping die 5 as the stamping tool. The width of the stamping plate 9 is 0.025 inch. Assemble them to the upper chuck and the lower base of the stamping machine 1 respectively.

[0045] Step S3: Place the pre-prepared copper-nickel-titanium plate with a thickness of 0.014 inch and thermal activation on the stamping die 5. The copper-nickel-titanium plate is located between the upper limit bar 12 and the lower limit bar 13. Start the stamping machine 1. The hydraulic push rod 2 drives the stamping punch 3 to move downward. After the stamping operation, the thermally activated 0.014×0.025 inch general-shaped copper-nickel-titanium square wire falls into the material collection box 6, and the preparation is completed.

[0046] Step S4: Start the drive motor. The drive motor drives the sheet material winding reel to rotate, and then winds the copper-nickel-titanium plate around the sheet material winding reel. At the same time, the copper-nickel-titanium plate between the stamping punch 3 and the stamping die 5 moves forward. After moving a certain distance, it stops. Start the stamping machine 1 again for blanking operation to complete batch preparation.

[0047] Example 3

[0048] Prepare a 0.016×0.022 inch lingual lower tooth TMA square wire or stainless steel square wire. The steps are as follows:

[0049] Step S1: Prepare a pre-prepared TMA sheet or stainless steel sheet with a thickness of 0.016 inch and perform heat treatment to make it exhibit the characteristics of the finished square wire at room temperature.

[0050] Step S2: Select a stamping punch 3 and a stamping die 5 for lingual lower teeth as the stamping tool. The width of the stamping plate 9 is 0.025 inch. Assemble them to the upper chuck and the lower base of the stamping machine 1 respectively.

[0051] Step S3: Place the pre-prepared TMA sheet or stainless steel sheet with a thickness of 0.016 inch on the stamping die 5. The TMA sheet or stainless steel sheet is located between the upper limit bar 12 and the lower limit bar 13. Start the stamping machine 1. The hydraulic push rod 2 drives the stamping punch 3 to move downward. After the stamping operation, the 0.016×0.022 inch lingual lower tooth TMA square wire or stainless steel square wire falls into the material collection box 6, and the preparation is completed.

[0052] Step S4: Start the drive motor. The drive motor drives the sheet material winding reel to rotate, and then winds the TMA sheet or stainless steel sheet around the sheet material winding reel. At the same time, the TMA sheet or stainless steel sheet between the stamping punch 3 and the stamping die 5 moves forward. After moving a certain distance, it stops. Start the stamping machine 1 again for blanking operation to complete batch preparation.

[0053] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0054] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An orthodontic rectangular wire preparation device for batch and personalized production, comprising a stamping machine (1); characterized in that: The stamping end of the hydraulic push rod (2) on the stamping machine (1) is fixedly connected with a stamping punch (3). The upper surface of the stamping table (4) on the stamping machine (1) is fixed with a stamping die (5). A material collecting box (6) is arranged at the bottom end of the stamping table. A stamping plate (7) is movably placed between the stamping punch (3) and the stamping die (5). Plate winding and unwinding assemblies are arranged at both ends of the stamping plate (7). The stamping punch (3) includes an upper mounting block (8) fixedly connected with the hydraulic push rod (2). The bottom end of the upper mounting block (8) is integrally and fixedly connected with a stamping plate (9) in an arc shape. The stamping die (5) includes a lower mounting block (10) fixedly connected with the stamping table (4). A stamping concave hole (11) which is in fitting match with the stamping plate (9) is penetrated and opened on the lower mounting block (10). The stamping concave hole (11) is communicated with the material collecting box (6).

2. The orthodontic rectangular wire preparation device for mass and personalized production according to claim 1, characterized in that: The plate winding and unwinding assemblies include a plate winding reel and a plate unwinding reel. One end of the stamping plate (7) is wound on the plate winding reel, and the other end is wound on the plate unwinding reel. A driving motor is installed at the end of the plate winding reel. The output end of the driving motor is fixedly connected with the plate winding reel. The stamping machine (1) is located between the plate winding reel and the plate unwinding reel. Two groups of limiting assemblies distributed left and right are fixedly installed on the stamping machine (1). The limiting assemblies include an upper limiting strip (12) and a lower limiting strip (13). The stamping plate (7) slides between the upper limiting strip (12) and the lower limiting strip (13).

3. The orthodontic rectangular wire preparation device for mass and personalized production according to claim 1, characterized in that: The stamping plate (7) includes a heat-treated nickel-titanium alloy plate, a heat-treated TMA plate, and a heat-treated stainless steel plate. The heat-treated nickel-titanium alloy plate includes a super-elastic heat-treated nickel-titanium alloy plate and a thermally activated heat-treated nickel-titanium alloy plate. The nickel-titanium alloy plate includes a nickel-titanium plate and a copper-nickel-titanium plate.

4. An orthodontic rectangular wire preparation device for batch and personalized production according to claim 1, characterized in that: According to the shape of the oral cavity, the stamping plate (9) includes a standard stamping plate and a personalized stamping plate. The standard stamping plate includes an oval stamping plate, a natural-shaped stamping plate, a square-round stamping plate, a universal stamping plate, a pointed-round stamping plate, and a lingual-side stamping plate that fit the oral cavity.

5. The orthodontic rectangular wire preparation device for mass and personalized production according to claim 4, characterized in that: According to the target size of the orthodontic square wire, the thickness of the stamping plate (7) includes 0.014 inch, 0.016 inch, 0.017 inch, 0.018 inch, 0.019 inch, 0.020 inch, and 0.021 inch.

6. The orthodontic rectangular wire preparation device for batch and personalized production according to claim 5, wherein: According to the target size of the orthodontic square wire, the width of the stamping plate (9) includes 0.016 inch, 0.017 inch, 0.018 inch, 0.020 inch, 0.022 inch, and 0.025 inch.

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