A mirror polishing device for improving the torque expression accuracy of orthodontic square wire

Abstract

The utility model relates to the technical field of orthodontic square wires, and specifically is a mirror polishing device for improving the torque expression accuracy of orthodontic square wires, comprising a polishing box, a rectangular bracket is fixedly connected to the bottom end of the polishing box, a movable flexible nozzle is installed inside the polishing box, a push-pull box is slidably connected to the inside of the rectangular bracket, the top of the push-pull box is docked and matched with the bottom end of the polishing box, a U-shaped mounting block is installed inside the push-pull box, a U-shaped placement groove is provided on the upper surface of the mounting block, a plurality of leakage holes penetrating the mounting block are provided at the bottom end of the placement groove, a collecting hole is provided on the inner bottom wall of the push-pull box, and an exhaust port is installed at the top end of the polishing box; compressed air is used as a power to bombard polishing particles onto the orthodontic square wire located in the placement groove below through the flexible nozzle, so as to remove oxide scale and scratches on the orthodontic square wire, and the movable flexible nozzle is controlled to perform reciprocating motion by a controller, so that the process of bombarding the orthodontic square wire is automated.

Description

Technical Field

[0001] The utility model relates to the technical field of orthodontic square wires, in particular to a mirror polishing device for improving the torque expression accuracy of orthodontic square wires. Background Art

[0002] After the orthodontic square wire is prepared, it needs to be heat-formed into an arch shape for the user to wear. Because its microstructure is in a cold-rolled state, it is necessary to use a subsequent heat treatment process to heat-form the cold-rolled orthodontic square wire into an arch shape that matches the ideal dental arch shape. The surface of the orthodontic square wire will oxidize after heat treatment, so it needs to be polished to remove the oxide scale on the surface of the orthodontic square wire.

[0003] Traditional methods for removing oxide scale from the surface of orthodontic wire include mechanical polishing, electrochemical polishing, chemical corrosion, etc. These processes are complex, pollute the environment, and are costly. More importantly, while polishing to remove the oxide scale from the surface of the orthodontic wire, the edge curvature of the orthodontic wire will also be rounded, increasing the edge curvature radius of the orthodontic wire and reducing the torque expression accuracy of the orthodontic wire.

[0004] Therefore, it is necessary to invent a mirror polishing device that improves the expression accuracy of orthodontic square wire torque. Utility Model Content

[0005] In order to solve the problem that the existing orthodontic square wire polishing method removes the oxide scale on the surface of the orthodontic square wire while rounding the edge curvature of the orthodontic square wire, thereby increasing the edge curvature radius of the orthodontic square wire and reducing the torque expression accuracy of the orthodontic square wire, the utility model provides a mirror polishing device for improving the torque expression accuracy of the orthodontic square wire.

[0006] The utility model is realized by adopting the following technical solutions:

[0007] A mirror polishing device for improving the torque expression accuracy of orthodontic square wires comprises a polishing box with an opening at the lower end, a rectangular bracket fixedly connected to the bottom end of the polishing box, a movable flexible nozzle installed inside the polishing box, the end of the flexible nozzle is connected to a gas cylinder and a polishing particle box through a flexible pipeline, a push-pull box is slidably connected inside the rectangular bracket, the top of the push-pull box is docked and matched with the bottom of the polishing box, a U-shaped mounting block is installed inside the push-pull box, a U-shaped placement groove is provided on the upper surface of the mounting block, a plurality of leakage holes penetrating the mounting block are provided at the bottom end of the placement groove, a collecting hole is provided on the inner bottom wall of the push-pull box, and an exhaust port is installed at the top of the polishing box.

[0008] Furthermore, a motor 1 is fixedly installed on a side wall at one end of the interior of the polishing box, a threaded rod 1 is fixedly installed on the output end of the motor 1, a motor 2 is fixedly installed on a side wall of the interior of the polishing box that is perpendicular to the threaded rod 1, a threaded rod 2 is fixedly installed on the output end of the motor 2, a support rod 1 is fixedly installed on the side wall of the interior of the polishing box that is opposite to the threaded rod 1, and a support rod 2 is fixedly installed on the side wall of the interior of the polishing box that is opposite to the threaded rod 2, a connecting block 1 is threadedly connected on the threaded rod 1 and sleeved on the support rod 1, and the two connecting blocks 1 are fixedly connected by the connecting rod 1, a connecting block 2 is threadedly connected on the threaded rod 2 and sleeved on the support rod 2, and the two connecting blocks 2 are fixedly connected by the connecting rod 2, both the connecting rod 1 and the connecting rod 2 slide through the interior of the middle block, and the end of the flexible nozzle is fixedly installed at the bottom end of the middle block.

[0009] Furthermore, a plurality of columns are installed inside the push-pull box, a U-shaped bracket is fixedly installed on the top of the column, a bolt is threadedly connected to the side wall of one end of the U-shaped bracket, the end of the bolt located on the outside of the U-shaped bracket is fixedly connected to a screw rod, the end of the bolt located on the inside of the U-shaped bracket is fixedly connected to a circular retaining plate, and flexible gaskets are fixedly installed on the opposite ends of the circular retaining plate and the U-shaped bracket.

[0010] Furthermore, the bottom end of the push-pull box is sloped; a handle is fixedly installed on the side end of the push-pull box; a plurality of observation windows are opened on the surface of the polishing box, and sealing glass is installed on the observation window; the side end of the polishing box is rotatably connected to the polishing box.

[0011] Furthermore, a controller is installed on the outer surface of the polishing box, and the motor one and the motor two are electrically connected to the controller; a solenoid valve is installed on the flexible pipe, and the solenoid valve is electrically connected to the controller.

[0012] Furthermore, a slide rail is fixedly installed at the lower part of the rectangular bracket, a slide plate is slidably connected to the slide rail, and the bottom end of the push-pull box is fixedly connected to the top end of the slide plate.

[0013] Furthermore, the polishing particle box is filled with polishing particles, the polishing particles are elastic, and the hardness of the polishing particles is between 0.2 and 0.5 times the hardness of the orthodontic square wire.

[0014] The utility model has a reasonable and reliable structural design. It uses compressed air as a power to bombard polishing particles onto the orthodontic square wire located in the lower placement groove through a flexible nozzle, thereby removing oxide scales and scratches on the orthodontic square wire. The movable flexible nozzle is controlled by a controller to perform reciprocating motion, so that the process of bombarding the orthodontic square wire is automated. The polishing box and the push-pull box are butt-jointed to form a closed space to avoid splashing of polishing particles. After the bombardment is completed, the polishing particles can be collected and reused through the collection hole. Furthermore, it has the advantages of simple structure and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the middle block in the utility model.

[0017] Figure 3 It is a structural schematic diagram of the U-shaped bracket in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the placement slot in the utility model.

[0019] In the figure: 1-polishing box, 2-rectangular bracket, 3-flexible nozzle, 4-push-pull box, 5-mounting block, 6-placing groove, 7-leakage hole, 8-collecting hole, 9-exhaust port, 10-motor one, 11-threaded rod one, 12-motor two, 13-threaded rod two, 14-support rod one, 15-support rod two, 16-connecting block one, 17-connecting rod one, 18-connecting block two, 19-connecting rod two, 20-middle block, 21-column, 22-U-shaped bracket, 23-bolt, 24-screwing rod, 25-round stopper, 26-handle, 27-observation window, 28-orthodontic square wire. DETAILED DESCRIPTION

[0020] A mirror polishing device for improving the torque expression accuracy of orthodontic square wire, as shown in the attached Figure 1 -Attached Figure 4 As shown; it includes a polishing box 1 with an opening at the lower end, a rectangular bracket 2 is fixedly connected to the bottom end of the polishing box 1, a movable flexible nozzle 3 is installed inside the polishing box 1, the end of the flexible nozzle 3 is connected to a gas cylinder and a polishing particle box through a flexible pipe, a push-pull box 4 is slidably connected inside the rectangular bracket 2, the top of the push-pull box 4 is docked and matched with the bottom end of the polishing box 1, a U-shaped mounting block 5 is installed inside the push-pull box 4, the upper surface of the mounting block 5 is provided with a U-shaped placement groove 6, the bottom end of the placement groove 6 is provided with a plurality of leakage holes 7 penetrating the mounting block 5, and a collecting hole 8 is provided on the inner bottom wall of the push-pull box 4, and an exhaust port 9 is installed at the top of the polishing box 1.

[0021] In the utility model, the placement groove 6 is used to place the orthodontic square wire 28, and compressed air is used as the power to bombard the polishing particles through the flexible nozzle 3 onto the orthodontic square wire 28 located in the placement groove 6 below, so as to remove the oxide scale and scratches on the orthodontic square wire 28, and the movable flexible nozzle 3 is controlled by the controller to perform reciprocating motion, so that the process of bombarding the orthodontic square wire 28 is automated; further, the polishing box 1 is docked and interlocked with the push-pull box to form a closed space to avoid splashing of polishing particles. After the bombardment is completed, the polishing particles can be collected and reused through the collection hole 8, and the exhaust port 9 is used to discharge the gas.

[0022] As attached Figure 2 As shown; a motor 10 is fixedly installed on the side wall at one end of the interior of the polishing box 1, a threaded rod 11 is fixedly installed on the output end of the motor 10, a motor 2 12 is fixedly installed on the side wall of the interior of the polishing box 1 that is perpendicular to the threaded rod 11, a threaded rod 2 13 is fixedly installed on the output end of the motor 2 12, a support rod 14 is fixedly installed on the side wall of the interior of the polishing box 1 that is opposite to the threaded rod 11, a support rod 2 15 is fixedly installed on the side wall of the interior of the polishing box 1 that is opposite to the threaded rod 2 13, a connecting block 16 is threadedly connected on the threaded rod 11 and sleeved on the support rod 14, and the two connecting blocks 16 are fixedly connected by a connecting rod 17, a connecting block 2 18 is threadedly connected on the threaded rod 2 13 and sleeved on the support rod 2 15, and the two connecting blocks 2 18 are fixedly connected by a connecting rod 2 19, the connecting rod 17 and the connecting rod 2 19 both slide through the interior of the middle block 20, and the end of the flexible nozzle 3 is fixedly installed at the bottom end of the middle block 20.

[0023] The above structure realizes the reciprocating motion of the flexible nozzle 3. By accurately controlling the rotation rate of motor 10 and motor 2 12 through the controller, any displacement of the middle block 20 on the same horizontal plane can be realized, and the reciprocating motion of the flexible nozzle 3 can be realized; starting motor 10, the threaded rod 11 rotates, driving the two connecting blocks 16 and the connecting rod 17 to move in the direction of threaded rod 11, and then driving the middle block 20 to move in the direction of threaded rod 11, starting motor 2 12, the threaded rod 2 13 rotates, driving the two connecting blocks 2 18 and the connecting rod 2 19 to move in the direction of threaded rod 2 13, and then driving the middle block 20 to move in the direction of threaded rod 2 13. Driven by threaded rod 11 and threaded rod 2 13, the middle block 20 can realize displacement in any direction on a two-dimensional plane, which is used to match the U-shaped placement groove 6 located below, so as to achieve the purpose of the flexible nozzle 3 bombarding the orthodontic square wire 28 in the placement groove 6 with a U-shaped motion trajectory.

[0024] As attached Figure 3 As shown; a plurality of columns 21 are installed inside the push-pull box 4, a U-shaped bracket 22 is fixedly installed on the top of the column 21, a bolt 23 is threadedly connected to the side wall of one end of the U-shaped bracket 22, the end of the bolt 23 located on the outside of the U-shaped bracket 22 is fixedly connected to a screw rod 24, the end of the bolt 23 located on the inside of the U-shaped bracket 22 is fixedly connected to a circular retaining piece 25, and flexible gaskets are fixedly installed on the opposite ends of the circular retaining piece 25 and the U-shaped bracket 22.

[0025] The above structure realizes the fixed connection of the mounting block 5. The columns 21 are distributed in a triangular shape, corresponding to the top end and the other two tail ends of the U-shaped mounting block 5 respectively. The mounting block 5 is embedded in the U-shaped bracket 22, and then the bolt 23 is screwed by screwing the rod 24, so that the circular abutment 25 abuts against the side wall of the mounting block 5, thereby completing the fixed connection of the mounting block 5.

[0026] As attached Figure 1 As shown; the bottom end of the push-pull box 4 is sloped; a handle 26 is fixedly installed on the side end of the push-pull box 4; a plurality of observation windows 27 are opened on the surface of the polishing box 1, and a sealing glass is installed on the observation window 27, and the side end of the polishing box 1 is rotatably connected to the polishing box 1.

[0027] The sloped push-pull box 4 facilitates the polishing particles to roll down and concentrate at the lowest end of the push-pull box 4 for easy collection; the structural design of the observation window 27 facilitates observation of the operation status inside the polishing box 1, and the side end of the polishing box 1 is rotatably connected to the polishing box 1 for easy maintenance and replacement.

[0028] A controller is installed on the outer surface of the polishing box 1, and the motor 1 10 and the motor 2 12 are electrically connected to the controller; a solenoid valve is installed on the flexible pipe, and the solenoid valve is electrically connected to the controller.

[0029] The solenoid valve can adjust the speed at which the flexible nozzle 3 sprays polishing particles.

[0030] A slide rail is fixedly installed at the lower part of the rectangular bracket 2, a slide plate is slidably connected to the slide rail, and the bottom end of the push-pull box 4 is fixedly connected to the top end of the slide plate.

[0031] The structural design of the slide rail and the slide plate realizes the sliding connection between the rectangular bracket 2 and the push-pull box 4.

[0032] The polishing particle box is filled with polishing particles, which are elastic and have a hardness value between 0.2 and 0.5 times the hardness value of the orthodontic square wire 28 .

[0033] The polishing particles are elastic and have a hardness value between 0.2 and 0.5 times the hardness value of the orthodontic square wire 28 , which can fully contact the surface of the orthodontic square wire 28 without damaging the edge radius of the orthodontic square wire 28 .

[0034] The specific steps of mirror polishing are as follows:

[0035] Step S1: Apply water-soluble glue to the two tail ends and the top position of the heat-treated U-shaped orthodontic square wire 28, and bond the orthodontic square wire 28 to the bottom end of the placement groove 6.

[0036] Step S2: embed the mounting block 5 into the U-shaped bracket 22 with a triangular distribution, and then screw the bolt 23 by screwing the rod 24 so that the circular abutment 25 abuts against the side wall of the mounting block 5, thereby completing the fixed connection of the mounting block 5.

[0037] Step S3: Start motor 1 10 and motor 2 12, drive the flexible nozzle 3 fixed on the middle block 20 to move back and forth along the U-shaped trajectory set by the controller, and at the same time open the solenoid valve so that the flexible nozzle 3 bombards the orthodontic square wire 28 with polishing particles, and the polishing particles after bombardment are discharged into the push-pull box 4 through the leakage hole 7; the splashing polishing particles can also bounce back into the polishing box 1 through the inner wall of the polishing box 1 and the inner wall of the push-pull box 4.

[0038] During bombardment, the polishing particles sprayed onto the side wall of the placement groove 6 are reflected to the side of the orthodontic square wire 28 due to their elastic characteristics. In this way, each bombardment can spray to three sides of the orthodontic square wire 28, and its hardness is between 0.2 and 0.5 times the hardness of the orthodontic square wire, which will not cause damage to the edge radius of the prepared orthodontic square wire 28. The polishing particles and the oxide scale of the orthodontic square wire 28 are fully mechanically rubbed to remove the oxide scale and scratches on the surface of the orthodontic square wire 28.

[0039] Step S4: After the bombardment is completed, the push-pull box 4 is opened by the handle 26 , the bolts 23 are loosened, and the mounting block 5 is taken out from the push-pull box 4 .

[0040] Step S5: Then immerse the placement slot 6 bonded with the orthodontic square wire 28 into water to dissolve the water-soluble glue, so that the orthodontic square wire 28 is separated from the placement slot 6, and the moisture on the surface of the orthodontic square wire 28 and the placement slot 6 is blown dry.

[0041] Step S6: Turn over the orthodontic square wire 28 and perform steps S1, S2, S3, S4 and S5 again to obtain the orthodontic square wire 28 with surface oxide scale and scratches removed.

[0042] The surface roughness R of the orthodontic square wire 28 after mirror polishing a No larger than 0.8μm, with bright surface, clean and oil-free, no obvious scratches, no corners, and no burrs.

[0043] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire, characterized by: The invention comprises a polishing box (1) with an opening at the bottom end, a rectangular bracket (2) being fixedly connected to the bottom end of the polishing box (1), a movable flexible nozzle (3) being installed inside the polishing box (1), the end of the flexible nozzle (3) being connected to a gas cylinder and a polishing particle box via a flexible pipe, a push-pull box (4) being slidably connected inside the rectangular bracket (2), the top end of the push-pull box (4) being docked and matched with the bottom end of the polishing box (1), a U-shaped mounting block (5) being installed inside the push-pull box (4), a U-shaped placement groove (6) being provided on the upper surface of the mounting block (5), a plurality of leakage holes (7) penetrating the mounting block (5) being provided at the bottom end of the placement groove (6), a collecting hole (8) being provided on the inner bottom wall of the push-pull box (4), and an exhaust port (9) being installed at the top end of the polishing box (1).

2. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 1, characterized in that: A motor 1 (10) is fixedly mounted on a side wall at one end of the interior of the polishing box (1); a threaded rod 1 (11) is fixedly mounted on the output end of the motor 1 (10); a motor 2 (12) is fixedly mounted on a side wall of the interior of the polishing box (1) perpendicular to the threaded rod 1 (11); a threaded rod 2 (13) is fixedly mounted on the output end of the motor 2 (12); a support rod 1 (14) is fixedly mounted on the side wall of the interior of the polishing box (1) opposite to the threaded rod 1 (11); a support rod 2 (14) is fixedly mounted on the side wall of the interior of the polishing box (1) opposite to the threaded rod 2 (13); (15), a connecting block (16) is threadedly connected on the threaded rod (11) and sleeved on the support rod (14), and the two connecting blocks (16) are fixedly connected by a connecting rod (17), a connecting block (18) is threadedly connected on the threaded rod (13) and sleeved on the support rod (15), and the two connecting blocks (18) are fixedly connected by a connecting rod (19), and the connecting rod (17) and the connecting rod (19) are both slidably inserted into the middle block (20), and the end of the flexible nozzle (3) is fixedly mounted on the bottom end of the middle block (20).

3. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 1, characterized in that: A plurality of columns (21) are installed inside the push-pull box (4), a U-shaped bracket (22) is fixedly installed on the top of the column (21), a bolt (23) is threadedly connected to a side wall of one end of the U-shaped bracket (22), an end of the bolt (23) located outside the U-shaped bracket (22) is fixedly connected to a screw rod (24), an end of the bolt (23) located inside the U-shaped bracket (22) is fixedly connected to a circular stopper (25), and flexible gaskets are fixedly installed at opposite ends of the circular stopper (25) and the U-shaped bracket (22).

4. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 1, characterized in that: The bottom end of the push-pull box (4) is sloped; a handle (26) is fixedly mounted on the side end of the push-pull box (4); a plurality of observation windows (27) are provided on the surface of the polishing box (1), and sealing glass is mounted on the observation windows (27); the side end of the polishing box (1) is rotatably connected to the polishing box (1).

5. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 2, characterized in that: A controller is installed on the outer surface of the polishing box (1), and the motor 1 (10) and the motor 2 (12) are both electrically connected to the controller; a solenoid valve is installed on the flexible pipe, and the solenoid valve is electrically connected to the controller.

6. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 1, characterized in that: A slide rail is fixedly mounted on the lower part of the rectangular bracket (2), a slide plate is slidably connected to the slide rail, and the bottom end of the push-pull box (4) is fixedly connected to the top end of the slide plate.

7. A mirror polishing device for improving the torque expression accuracy of orthodontic square wire according to claim 1, characterized in that: The polishing particle box is filled with polishing particles, which are elastic and have a hardness value between 0.2 and 0.5 times the hardness value of orthodontic square wire.

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