JP2020110466A - Processing device - Google Patents

Abstract

To provide a processing device that can readily process a wire for dentistry.SOLUTION: A processing device (1) for processing a wire (2) for dentistry includes: a rotary feeding part (10) for feeding the wire (2) while curving it; and a bending part (20) for bending the wire (2) fed by the rotary feeding part (10) in a direction different from a feeding direction (D1) of the wire (2), whereby this configuration can readily process a wire for dentistry.SELECTED DRAWING: Figure 6

Description

The present invention relates to a processing device.

Orthodontic wires are used as orthodontic appliances used for orthodontic treatment of teeth (for example, see Non-Patent Document 1).

Dentists manufacture an orthodontic appliance for orthodontics by manually processing a dental wire rod as in Non-Patent Document 1.

Shin Hasegawa, “Gummetal Wires for Tooth Movement-Concept and Clinical-” Tokyo Clinical Publishing, November 20, 2012

In recent years, there has been a demand for a processing device that can easily process a dental wire.

Therefore, an object of the present invention is to solve the above problems and to provide a processing apparatus capable of easily processing a dental wire.

In order to achieve the above object, a processing apparatus according to an aspect of the present invention,
A processing device for processing a dental wire,
A rotary feeding unit that feeds the wire rod while bending it,
A bending part that bends the wire sent by the rotary sending part in a direction different from the sending direction of the wire,
Equipped with.

With the processing apparatus according to the present invention, it is possible to easily process a dental wire material.

FIG. 1 is a schematic perspective view of an example of a processing apparatus according to Embodiment 1 of the present invention. FIG. 2 is a schematic partial perspective view showing an enlarged part of an example of the processing apparatus according to the first embodiment of the present invention. FIG. 3 is an enlarged schematic partial perspective view of a part of an example of the processing apparatus according to the first embodiment of the present invention. FIG. 4 is a schematic partial perspective view showing an enlarged part of an example of the processing apparatus according to the first embodiment of the present invention. FIG. 5 is a schematic diagram showing a schematic configuration of an example of the bending portion. FIG. 6 is a schematic diagram showing the main configuration of an example of the processing apparatus according to the first embodiment of the present invention. FIG. 7 is a flowchart of an example of the processing method according to the first embodiment of the present invention. FIG. 8A is a schematic perspective view of an example of an orthodontic wire. FIG. 8B is a schematic front view of an example of the orthodontic wire. FIG. 8C is a schematic side view of an example of an orthodontic wire. FIG. 8D is a schematic top view of an example of the orthodontic wire. FIG. 9: is a schematic diagram which shows an example of each cross-sectional shape in the some part of the orthodontic wire shown in FIG. 8A. FIG. 10: is a figure which shows an example of the position which switches operation|movement of a bending part in a wire for dental use. FIG. 11A is a diagram showing an example of a bending process in the first wire portion of the dental wire. FIG. 11B is a diagram showing an example of a bending process in the first wire portion of the dental wire. FIG. 11C is a diagram showing an example of a bending process in the first wire portion of the dental wire. FIG. 11D is a diagram showing an example of a bending process in the first wire portion of the dental wire. FIG. 11E is a diagram showing an example of a bending process in the first wire portion of the dental wire. FIG. 11F is an enlarged view showing an enlarged part of an example of the bending process of FIG. 11B. FIG. 12A is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12B is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12C is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12D is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12E is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12F is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12G is a diagram showing an example of a bending process in the second wire portion of the dental wire. FIG. 12H is an enlarged view showing an enlarged part of an example of the bending process of FIG. 12D. FIG. 13A is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13B is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13C is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13D is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13E is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13F is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13G is a diagram showing an example of a bending process in the third wire portion of the dental wire. FIG. 13H is a diagram showing an example of a bending process in the third wire portion of the dental wire.

(Findings that form the basis of this disclosure)
As a method for orthodontic treatment, a method using a dental wire is known. In orthodontics using a dental wire, a dentist manually processes the dental wire three-dimensionally to produce an orthodontic wire according to the patient.

In orthodontics using a orthodontic wire, the restoration force of the wire is used to correct the dentition. For this reason, examples of the material of the dental wire material processed into the orthodontic wire include a material having a high yield stress and a low elastic coefficient, such as a β-type Ti alloy, and a large restoring force.

However, it is difficult to manually three-dimensionally process a dental wire made of a high hardness material having a high yield stress and a low elastic modulus and a large restoring force, and it takes a lot of time and labor for a dentist. Are forced to process dental wires.

Further, in the case of manual work, there are cases where unevenness occurs in the work, and it is difficult to process the wire rod into a smooth curve.

As a result of intensive research, the inventors of the present invention have made it possible to easily perform three-dimensional processing of a dental wire rod by feeding the dental wire rod while bending it and bending the curved wire rod in a direction different from the feeding direction. The inventors of the present invention have found that they can be carried out, and have reached the following invention.

The processing apparatus according to the first aspect of the present invention is
A processing device for processing a dental wire,
A rotary feeding unit that feeds the wire rod while bending it,
A bending part that bends the wire sent by the rotary sending part in a direction different from the sending direction of the wire,
Equipped with.

In the processing apparatus of the second aspect of the present invention,
The bending portion is
A first processing portion that bends the wire rod in a first direction different from the feeding direction of the wire rod;
A second processing portion for bending the wire rod in a second direction different from the first direction;
May have.

In the processing apparatus of the third aspect of the present invention, the first processing unit is
A first base having a first protrusion protruding in the first direction;
A first head having a first concave portion that engages with the first convex portion of the first base;
Have
By bending the wire rod in the first direction by sandwiching the wire rod between the first convex portion of the first base and the first concave portion of the first head,
The second processing section,
A second base having a second recess recessed in the second direction;
A second head having a second convex portion that engages with the second concave portion of the second base;
Have
The wire may be bent in the second direction by sandwiching the wire between the second concave portion of the second base and the second convex portion of the second head.

In the processing apparatus according to the fourth aspect of the present invention, the rotary feed unit is
In the first bending work by the first working part, the wire material is sent out at a pitch of 0.1 times or more and 1.5 times or less the width of the first working part,
In the second bending work by the second working part, the wire may be sent out at a pitch of 0.1 times to 1.5 times the width of the second working part.

In the processing apparatus of the fifth aspect of the present invention, when switching between the first bending processing by the first processing section and the second bending processing by the second processing section in the bending processing section,
The rotation feed unit may overlap the first bending process and the second bending process at a portion where the direction of bending of the wire is switched by advancing or retracting the wire.

In the processing apparatus of the sixth aspect of the present invention, the wire may have a cross-sectional shape having a longitudinal direction.

In the processing apparatus of the seventh aspect of the present invention, the wire may be curved and formed in an arc shape.

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Further, in each drawing, each element is exaggerated for ease of explanation.

(Embodiment 1)
[overall structure]
An example of the processing apparatus according to the first embodiment of the present invention will be described. FIG. 1 is a schematic perspective view of an example of a processing device 1 according to the first embodiment of the present invention. 2 to 4 are schematic partial perspective views in which a part of an example of the processing apparatus 1 according to the first embodiment of the present invention is enlarged. The X, Y, and Z directions in the figure indicate the width direction, the depth direction, and the height direction of the processing apparatus 1, respectively. As shown in FIGS. 1 to 4, the processing device 1 is a device that three-dimensionally processes the wire rod 2 by bending the wire rod 2.

Processing the wire rod 2 three-dimensionally means processing the wire rod 2 into a shape curved in the X, Y, and Z directions. For example, in three-dimensional processing, the wire rod 2 is bent in the Z direction while being curved in the XY plane.

In the first embodiment, the processing device 1 includes the rotary feed unit 10, the bending unit 20, the wire storage unit 30, the detection unit 40, the cutting unit 50, the receiving unit 60, the drive unit 70, and the display unit 80. Note that these elements are controlled by the control unit. Hereinafter, these elements will be described.

<Rotary feeding part>
The rotary feed unit 10 feeds the wire rod 2 while bending the wire rod 2. Specifically, the rotary feeding unit 10 feeds the wire rod 2 while curving the wire rod 2 in an arc shape. As shown in FIG. 3, the rotary feed unit 10 includes a rotation center shaft portion 11, a flange portion 12, a guide portion 13, and a clamp head 14. The rotary feeding part 10 bends the wire rod 2 in an arc shape and feeds it while rotating around the rotation center shaft part 11. Therefore, the feeding direction of the wire rod 2 is the rotation direction D1 of the rotary feeding unit 10.

The rotation center shaft portion 11 is arranged so as to penetrate the center of the flange portion 12. The rotation center shaft portion 11 is, for example, a cylindrical member. The rotation center shaft portion 11 is connected to, for example, a motor and can be rotated by the motor. The rotation center shaft portion 11 is configured to be slidable in the vertical direction inside the flange portion 12.

The flange portion 12 is connected to the rotation center shaft portion 11. The flange portion 12 is, for example, a disk-shaped member. The flange portion 12 rotates in the rotation direction D1 by the rotation of the rotation center shaft portion 11.

The guide portion 13 is provided on a part of the outer circumference of the flange portion 12. The guide portion 13 is provided with a groove for guiding the wire rod 2 to the bending portion 20. A clamp base 13 a that is pressed by the clamp head 14 is provided at the end of the guide portion 13. The guide portion 13 moves in the rotation direction D1 by the rotation of the flange portion 12.

The clamp head 14 is a member that is connected to the rotation center shaft portion 11 and is pressed by the clamp base 13 a of the guide portion 13. The clamp head 14 is formed in an inverted L shape, for example. The clamp head 14 moves in the vertical direction by moving the rotation center shaft portion 11 in the vertical direction. Specifically, when the rotation center shaft portion 11 moves downward, the clamp head 14 moves downward and is pressed by the clamp base 13a of the guide portion 13. When the rotation center shaft portion 11 moves upward, the clamp head 14 moves upward and separates from the clamp base 13a of the guide portion 13. In this specification, the clamp head 14 and the clamp base 13a may be referred to as a clamp portion 15.

The operation of the rotary feeding unit 10 will be described in detail. In the rotary feed unit 10, when the wire 2 is supplied to the guide unit 13, the rotation center shaft unit 11 moves downward, and the clamp head 14 moves downward. As a result, the clamp head 14 is pressed against the clamp base 13a of the guide portion 13, and the wire rod 2 is held by the clamp head 14 and the clamp base 13a (clamp portion 15). Specifically, the wire rod 2 is held between the clamp head 14 and the clamp base 13a. Next, the flange portion 12 is rotated by rotating the rotation center shaft portion 11. As a result, the guide portion 13 provided on the outer periphery of the flange portion 12 moves in the rotation direction D1. At this time, since the wire rod 2 is held by the clamp portion 15, the movement of the guide portion 13 causes the wire rod 2 to be fed while being curved in an arc shape in the rotation direction D1. As a result, the wire rod 2 is sent to the bending portion 20.

As described above, the rotary feed unit 10 does not feed the wire rod 2 linearly, but feeds the wire rod 2 while curving the wire rod 2 in an arc shape. In the first embodiment, the rotary feeding unit 10 feeds the wire rod 2 to the bending unit 20 at a predetermined pitch, and the bending unit 20 bends the wire rod 2 every time the wire rod 2 is fed at a predetermined pitch.

<Bending part>
The bending part 20 bends the wire 2 sent by the rotary feed part 10 in a direction different from the feeding direction (rotation direction D1) of the wire 2. As shown in FIG. 4, the bending section 20 includes a first processing section 21 for bending the wire 2 in a first direction D11 different from the feeding direction (rotational direction D1) of the wire 2, and a first direction D11. A second processing portion 22 that bends the wire 2 in a different second direction D12. In the first embodiment, the first direction D11 and the second direction 12 are directions intersecting with the feeding direction (rotational direction D1) of the wire rod 2. For example, the first direction D11 is the upward direction and the second direction is the downward direction. In addition, the second processing unit 22 is arranged at the subsequent stage of the first processing unit 21.

FIG. 5 is a schematic diagram showing a schematic configuration of an example of the bending portion 20. As shown in FIG. 5, the first processed portion 21 has a first base 23 having a first convex portion 23a protruding in the first direction D11, and a first convex portion 23a of the first base 23 engaged with the first convex portion 23a. A first head 24 having one recess 24a. In the first embodiment, the first convex portion 23a of the first base 23 is formed so as to project in a round shape in the first direction D11. Specifically, when the first convex portion 23a is viewed from the front direction, the first convex portion 23a is formed so as to project in an arc shape. The front direction is a direction from the rotation center shaft portion 11 of the rotary feed portion 10 toward the bending portion 20. The first recess 24a of the first head 24 is formed to correspond to the shape of the first protrusion 23a. That is, the first recess 24a is formed in a round shape in the first direction D11. Specifically, when the first recess 24a is viewed from the front direction, the first recess 24a is formed in a circular arc shape.

The first processing unit 21 bends the wire rod 2 in the first direction D11 by sandwiching the wire rod 2 between the first protrusion 23a of the first base 23 and the first recess 24a of the first head 24. ing. In the first embodiment, the first base 23 is fixed, and the first head 24 is moved in the up-down direction D2 to press the first head 24 against the first base 23. Thereby, the 1st process part 21 bends the wire rod 2 in the 1st direction D11.

The second processed portion 22 has a second base 25 having a second recess 25a recessed in the second direction D12 and a second head having a second protrusion 26a engaging with the second recess 25a of the second base 25. 26 and. In the first embodiment, the second recess 25a of the second base 25 is formed so as to be recessed in a round shape in the second direction D12. Specifically, when the second recess 25a is viewed from the front direction, the second recess 25a is formed in a circular arc shape. The second convex portion 26a of the second head 26 is formed corresponding to the shape of the second concave portion 25a. That is, the second convex portion 26a is formed to project in a round shape in the second direction D12. Specifically, when the second convex portion 26a is viewed from the front direction, the second convex portion 26a is formed so as to project in an arc shape.

The second processing portion 22 bends the wire rod 2 in the second direction D12 by sandwiching the wire rod 2 between the second concave portion 25a of the second base 25 and the second convex portion 26a of the second head 26. ing. In the first embodiment, the second base 25 is fixed and the second head 26 is moved in the vertical direction D2, so that the second head 26 is pressed against the second base 25. Thereby, the 2nd process part 22 bends the wire rod 2 in the 2nd direction D12.

In the first embodiment, the first processing portion 21 and the second processing portion 22 have a mechanism that adjusts the pressing force when performing bending. For example, the pressing force may be adjusted by an adjusting mechanism including a spring and a screw. Moreover, the 1st process part 21 and the 2nd process part 22 may have the mechanism which adjusts a bending angle.

<Wire storage section>
As shown in FIGS. 1 and 2, the wire rod storage unit 30 stores the wire rod 2. The wire storage unit 30 is formed of, for example, a columnar member. The wire rod storage unit 30 stores the wire rod 2 in a round shape. Specifically, the wire rod 2 is wound and stored in the wire rod storage unit 30. The wire rod 2 stored in the wire rod storage unit 30 passes through the detection unit 40 and is supplied to the rotary feed unit 10.

<Detection unit>
As shown in FIGS. 1 to 3, the detection unit 40 is arranged between the rotary feed unit 10 and the wire rod storage unit 30 and detects the presence or absence of the wire rod 2. In the first embodiment, the operation of the processing apparatus 1 is controlled by detecting the presence or absence of the wire 2. Therefore, the information on the presence/absence of the wire 2 detected by the detection unit 40 is transmitted to the control unit.

<Cut part>
As shown in FIGS. 1 to 4, the cutting unit 50 is arranged at the subsequent stage of the bending unit 20 and cuts the wire rod 2. The cutting unit 50 cuts the wire rod 2 with a cutter, for example.

<Receiving part>
As shown in FIG. 1 and FIG. 2, the receiving portion 60 is arranged in the subsequent stage of the cutting portion 50 and receives the wire rod 2 cut by the cutting portion 50. The receiving portion 60 is formed of, for example, a cylindrical member. When receiving the wire rod 2, the receiving portion 60 moves to the vicinity of the cutting portion 50, and in other cases, the receiving portion 60 can be retracted away from the cutting portion 50.

<Drive unit>
As shown in FIG. 1, the drive unit 70 has a mechanism that drives the rotary feed unit 10, the bending unit 20, the cutting unit 50, and the receiving unit 60. The drive unit 70 includes, for example, a motor that rotates the rotary feed unit 10, a cam mechanism that drives the first processing unit 21 and the second processing unit 22 of the bending processing unit 20, and the like.

<Display>
As shown in FIG. 1, the display unit 80 outputs information about the processing device 1. The information of the processing apparatus 1 is, for example, information such as the feed speed of the rotary feed unit 10, the feed pitch, and the bending angle of the bending unit 20. In the first embodiment, the display unit 80 is composed of, for example, a touch panel display. The display unit 80 receives the input information input by the user and transmits the received input information to the control unit.

[motion]
An example of the operation of the processing apparatus 1, that is, an example of the processing method will be described. FIG. 6 is a schematic diagram showing a main configuration of an example of the processing apparatus 1 according to the first embodiment of the present invention. FIG. 7 is a flowchart of an example of the processing method according to the first embodiment of the present invention. In the example of the configuration shown in FIG. 6, the drive unit 70 and the display unit 80 are not shown in order to simplify the description.

As shown in FIG. 6, the operation of the processing apparatus 1 is controlled by the control unit 90. The control unit 90 controls the rotary feed unit 10, the bending unit 20, the cutting unit 50, and the receiving unit 60.

As shown in FIG. 7, in step ST10, the rotary feeding unit 10 feeds the wire rod 2 while bending the wire rod 2. Specifically, as shown in FIG. 6, the wire rod 2 stored in the wire rod storage unit 30 is supplied to the rotary feed unit 10. At this time, the detection unit 40 detects the presence or absence of the wire 2 between the wire storage unit 30 and the rotary feed unit 10. The information acquired by the detection unit 40 is transmitted to the control unit 90. The control unit 90 determines whether or not the wire rod 2 is supplied from the wire rod storage unit 30 to the rotary feed unit 10 based on the information on the presence or absence of the wire rod 2 sent from the detection unit 40.

When it is determined that the wire rod 2 is present, the control unit 90 controls the rotary feed unit 10 to feed the wire rod 2 to the bending unit 20. Specifically, the rotary feed unit 10 holds the wire 2 by the clamp unit 15 and moves the clamp unit 15 in the rotation direction D1. As a result, the wire rod 2 is sent out to the bending portion 20 while curving in an arc shape. In the first embodiment, the rotary feed unit 10 moves the clamp unit 15 at a predetermined pitch to feed the wire rod 2 to the bending unit 20.

When the control unit 90 determines that there is no wire rod 2, the control unit 90 keeps the operations of the rotary feeding unit 10, the bending unit 20, the cutting unit 50, and the receiving unit 60 stopped.

Returning to FIG. 7, in step ST20, the bending part 20 bends the wire 2 sent in step ST10 in a direction different from the sending direction. In the first embodiment, the bending portion 20 presses the wire rod 2 to bend the wire rod 2. Specifically, step ST20 has a step ST21 of bending the wire rod 2 in the first direction D11 and a step ST22 of bending the wire rod 2 in the second direction D12.

In step ST21, the wire rod 2 is bent in the first direction D11 by the first processing portion 21 of the bending portion 20. In step ST22, the wire rod 2 is bent in the second direction D12 by the second processing portion 22 of the bending portion 20.

In step ST30, the cutting part 50 cuts the wire 2 after the bending process by the bending part 20 is completed. The cut wire rod 2 is received by the receiving portion 60.

[Example of orthodontic wire production]
An example of producing an orthodontic wire from the wire 2 using the processing device 1 will be described. In addition, as the wire rod 2 used for manufacturing the orthodontic wire, a wire rod having an elliptical cross section was used. Further, as the material of the wire rod 2, a material made of β-type Ti alloy was used.

First, the three-dimensional shape of the orthodontic wire to be manufactured will be described with reference to FIGS. 8A to 8D are a schematic perspective view, a schematic front view, a schematic side view and a schematic plan view of an example of an orthodontic wire 3 (hereinafter, referred to as “wire 3”). As shown in FIGS. 8A to 8D, the wire 3 is formed in a substantially U shape when viewed from the upper direction (Z direction) and has a shape curved in the vertical direction. Specifically, both ends A1, A7 and the central portion A4 of the wire 3 are located above the other portions A2, A3, A5, A6. In other words, when the wire is viewed from the side surface direction (Y direction), the portion between the both ends A1 and A7 of the wire 3 and the central portion A4 has a shape recessed downward.

From one end A1 of the wire 3 to the portion A2, the wire 3 is bent downward. Further, the wire 3 is bent in the upward direction (Z direction) from the portion A2 of the wire 3 to the central portion A4 through the portion A3. The portion A2 shows the lower end of the wire 3, and the portion A3 shows the intermediate position between the portion A2 and the central portion A4. The lower end of the wire 3 is a lowermost portion when the wire 3 is viewed from the side surface direction (Y direction).

The wire 3 is bent downward from the central portion A4 of the wire 3 through the portion A5 toward the portion A6. The wire 3 is bent upward (Z direction) from the portion A6 of the wire 3 toward the other end A7. The portion A6 indicates the lower end of the wire 3, and the portion A5 indicates the intermediate position between the central portion A4 and the portion A6.

FIG. 9: is a schematic diagram which shows an example of each cross-sectional shape in the some part A1-A7 of the wire 3 shown in FIG. 8A. As shown in FIG. 9, in the plurality of portions A1 to A7 of the wire 3, the longitudinal directions of the cross-sectional shapes are different. That is, the three-dimensional shape of the wire 3 is realized with twist. In the processing apparatus 1, the wire rod 2 is bent while being fed out, and the wire rod 2 is bent from a direction different from the feed-out direction, whereby the wire rod 2 is twisted. Thereby, a three-dimensional shape having a smooth curve like the wire 3 is realized.

FIG. 10: is a figure which shows an example of the part which switches operation|movement of the bending part 20 in the dental wire 2. FIG. 10 is a view of a state in which the dental wire 2 is curved in an arc shape as viewed from above (Z direction). FIG. 10 shows wire rod portions 2a and 2c that perform the first bending process in the first direction D11 by the first processing unit 21 in the bending process unit 20, and the second bending process in the second direction D12 by the second processing unit 22. And a wire rod portion 2b for performing.

As shown in FIG. 10, the processing apparatus 1 divides the wire rod 2 into three wire rod portions 2a, 2b, 2c and bends the wire rod 2 in order to process the wire rod 2 into the three-dimensional shape of the wire 3. Specifically, the portion between the end P1 of the wire 2 and the portion P2 is the first wire portion 2a, the portion between the portion P2 of the wire 2 and the portion P3 is the second wire portion 2b, and the portion P3 of the wire 2 is the other end P4. The space between them is the third wire portion 2c. The portion P2 indicates a joint portion between the first wire rod portion 2a and the second wire rod portion 2b, and the portion P3 indicates a joint portion between the second wire rod portion 2b and the third wire rod portion 2c. The joint portion is a portion including a position at which the first bending process of the wire rod 2 in the first direction D11 and the second bending process of the wire rod 2 in the second direction D12 are switched, that is, the bending process of the wire rod 2 is performed. This is the part where the direction of is switched.

The first bending portion 21 performs the first bending process on the first wire rod portion 2 a. In the second wire rod portion 2b, the second bending work is performed by the second working portion 22. In the 3rd wire rod part 2c, the 1st bending process by the 1st process part 21 is performed.

<Bending of the first wire rod part>
An example of bending of the first wire rod portion 2a will be described with reference to FIGS. 11A to 11E are diagrams showing an example of a bending process in the first wire portion 2a of the dental wire 2. 11A to 11E show an example of a bending process performed on the first wire rod portion 2a from the end P1 to the joint portion P2 of the wire rod 2 shown in FIG. FIG. 11F is an enlarged view in which the portion of the first processed portion 21 of FIG. 11B is enlarged.

As shown in FIG. 11A, the rotary feed unit 10 feeds the wire rod 2 in the feed direction D3. The delivery direction D3 is a direction delivered by the rotary feeding unit 10. In the first embodiment, the feeding direction D3 is the rotation direction D1 of the rotary feeding unit 10.

The rotary feed part 10 holds the wire 2 by the clamp part 15 and moves the clamp part 15 in the forward direction D21 at a predetermined pitch L1. As a result, the wire rod 2 is delivered in the delivery direction D3 by the predetermined pitch L1. The forward direction D21 is a direction approaching the bending portion 20.

The predetermined pitch L1 is preferably set to 0.1 times or more and 1.5 times or less of the width B1 of the first processed portion 21. More preferably, the predetermined pitch L1 is set to 0.5 times or more and 1 time or less of the width B1 of the first processed portion 21. In the first embodiment, the predetermined pitch L1 is set to the same length as the width B1 of the first processed portion 21. The width B1 of the first processed portion 21 means the width of the first convex portion 23a.

As shown in FIG. 11B, the bending part 20 presses the first head 24 against the first base 23 by moving the first head 24 of the first processing part 21 in the downward direction D31. Thereby, the wire rod 2 is sandwiched between the first convex portion 23a and the first concave portion 24a, and is bent in the first direction D11. While the wire rod 2 is sandwiched between the first head 24 and the first base 23, the rotary feed unit 10 releases the holding of the wire rod 2 by the clamp unit 15. Then, the rotary feed unit 10 moves the clamp unit 15 in the backward direction D22. That is, the rotary feed part 10 separates the clamp part 15 from the wire rod 2 and retracts it. The backward direction D22 is a direction opposite to the forward direction D21 and is a direction away from the bending portion 20.

Here, an enlarged view in which the portion of the first processed portion 21 shown in FIG. 11B is enlarged is shown in FIG. 11F. As shown in FIG. 11F, the first processing portion 21 bends the first wire rod portion 2a in the first direction D11. As a result, the first wire rod portion 2a is curved along the shape of the first recess 24a, starting from the central portion of the first head 24. Specifically, the first wire rod portion 2a is curved in the arc directions D13 and D14, starting from the central portion of the first head 24.

As shown in FIG. 11C, after the rotary feed unit 10 retracts the clamp unit 15, the clamp unit 15 holds the wire 2. Next, the bending section 20 moves the first head 24 of the first processing section 21 in the upward direction D32. Then, the rotary feed part 10 moves the clamp part 15 in the forward direction D21 at a predetermined pitch L1 while holding the wire 2 by the clamp part 15.

As shown in FIG. 11D, when the wire rod 2 is sent out at a predetermined pitch L1, the portion E1 (see FIGS. 11B to 11C) where the bending process of the wire rod 2 is started by the first working portion 21 is directed in the feed-out direction D3. It is moved and placed at the end position of the bending process. The portion E1 where the bending of the wire 2 is started by the first working portion 21 means the portion where the bending of the wire 2 starts when the bending is performed by the first working portion 21. In FIG. 11D, a portion E1 is a portion of the wire rod 2 arranged at the end of the first processed portion 21 located on the opposite side of the wire rod 2 in the feeding direction D3. In the first embodiment, the end position of the bending process means the part where the bending of the wire rod 2 ends when the bending process is performed by the first processing unit 21. In FIG. 11D, the bending processing end position is the end portion of the first processing portion 21 located on the delivery direction D3 side of the wire rod 2.

As shown in FIG. 11E, the bending section 20 presses the first head 24 against the first base 23 by moving the first head 24 of the first processing section 21 in the downward direction D31. Thereby, the wire rod 2 is bent in the first direction D11. Further, the rotary feeding unit 10 separates the clamp unit 15 from the wire rod 2 and retracts it in the retracting direction D22.

As described above, in bending the first wire rod portion 2a of the wire rod 2, the rotary feed unit 10 feeds the wire rod 2 toward the bending unit 20 while bending the wire rod 2 at a predetermined pitch L1. Then, in the bending section 20, the wire 2 is bent in the first direction D11 by the first processing section 21. Thus, the first wire rod portion 2a is bent by repeatedly sending out the wire rod 2 and bending the wire rod 2 in the first direction D11. In the first embodiment, bending of the first wire rod portion 2a is performed until reaching the joint portion P2 shown in FIG.

<Bending of the second wire rod part>
An example of bending of the second wire rod portion 2b of the wire rod 2 will be described with reference to FIGS. 12A to 12G are diagrams illustrating an example of a bending process in the second wire portion 2b of the dental wire 2. 12A to 12G show an example of a bending process performed on the second wire rod portion 2b from the joint portion P2 to the joint portion P3 of the wire rod 2 shown in FIG. 12A to 12D show an example of a bending process in the joint portion P2 between the first wire rod portion 2a and the second wire rod portion 2b. 12E to 12G show an example of a bending process of the second wire rod portion 2b. FIG. 12H is an enlarged view in which the portion of the second processed portion 22 of FIG. 12D is enlarged.

In the first embodiment, the bending part 20 performs the first bending process and the second bending process at the joint portion P2 between the first wire rod portion 2a and the second wire rod portion 2b in an overlapping manner.

As shown in FIG. 12A, when the first bending work by the first working part 21 is performed until the joint part P2 is reached, the rotary feeding part 10 releases the holding of the wire rod 2 of the clamp part 15, The clamp portion 15 is moved backward in the backward direction D22. At this time, the amount of retreat of the clamp part 15 is larger than the predetermined pitch L1 of the first bending process.

As shown in FIG. 12B, after the rotary feed unit 10 retracts the clamp unit 15, the clamp unit 15 holds the wire 2. Next, the bending section 20 moves the first head 24 of the first processing section 21 in the upward direction D32. After that, the rotary feeding unit 10 moves the clamp unit 15 in the forward direction D21 by a predetermined distance L2 while holding the wire 2 by the clamp unit 15. As a result, the wire 2 is sent out in the sending direction D3 at the predetermined distance L2.

In the first embodiment, the predetermined distance L2 is set to the same length as the arrangement interval B2 between the first processing portion 21 and the second processing portion 22. The arrangement interval B2 between the first processing portion 21 and the second processing portion 22 is the second processing located on the side opposite to the feeding direction D3 from the end of the first processing portion 21 located on the side opposite to the feeding direction D3. It is the distance to the end of the portion 22.

As shown in FIG. 12C, when the wire rod 2 is fed out at a predetermined distance L2, the terminal end portion E2 (see FIGS. 12A and 12B) of the first wire rod portion 2a moves in the feed-out direction D3 and undergoes the second machining. The portion 22 is arranged at the bending start position. That is, at the joint portion P2 between the first wire rod portion 2a and the second wire rod portion 2b, after the bending work is performed by the first working portion 21, the bending work is started by the second working portion 22. Moving. In the first embodiment, the bending processing start position of the second processing portion 22 is the end portion of the second processing portion 22 located on the side opposite to the feeding direction D3 of the wire rod 2.

As shown in FIG. 12D, the bending section 20 presses the second head 26 against the second base 25 by moving the second head 26 of the second processing section 22 in the downward direction D41. Thereby, the wire rod 2 is sandwiched between the second concave portion 25a and the second convex portion 26a, and is bent in the second direction D12. While the wire rod 2 is sandwiched between the second head 26 and the second base 25, the rotary feeding unit 10 releases the holding of the wire rod 2 by the clamp unit 15. Then, the rotary feed unit 10 moves the clamp unit 15 in the backward direction D22. That is, the rotary feed part 10 separates the clamp part 15 from the wire rod 2 and retracts it.

As described above, in the joint portion P2, the first processed portion 21 is bent in the first direction D11, and then the second processed portion 22 is further bent in the second direction D12.

As shown in FIG. 12E, after the rotary feed unit 10 retracts the clamp unit 15, the clamp unit 15 holds the wire rod 2. Next, the bending section 20 moves the second head 26 of the second processing section 22 in the upward direction D42. Then, the rotary feed unit 10 moves the clamp unit 15 in the forward direction D21 at a predetermined pitch L3 while holding the wire 2 by the clamp unit 15. As a result, the wire rod 2 is delivered in the delivery direction D3 by the predetermined pitch L3.

The predetermined pitch L3 is preferably set to 0.1 times or more and 1.5 times or less of the width B31 of the second processed portion 22. More preferably, the predetermined pitch L3 is set to 0.5 times or more and 1 time or less of the width B3 of the second processed portion 22. In the first embodiment, the predetermined pitch L3 is set to the same length as the width B3 of the second processed portion 22. The width B3 of the second processed portion 22 means the width of the second recess 25a.

Here, an enlarged view in which the portion of the second processed portion 22 shown in FIG. 12D is enlarged is shown in FIG. 12H. As shown in FIG. 12H, the second processing portion 22 bends the second wire portion 2b in the second direction D12. As a result, the second wire rod portion 2b is curved along the shape of the second recess 25a, starting from the central portion of the second base 25. Specifically, the second wire rod portion 2b is curved in the arc directions D15 and D16, starting from the central portion of the second base 25.

As shown in FIG. 12F, when the wire rod 2 is fed out at a predetermined pitch L3, the terminal end portion E2 (see FIGS. 12C to 12E) of the first wire rod portion 2a moves in the feed-out direction D3, and the second processing portion Move to the end position of the bending process by 22. In the first embodiment, the end position of the bending work by the second working portion 22 is the end portion of the second working portion 22 located on the delivery direction D3 side of the wire rod 2.

As shown in FIG. 12G, the bending part 20 presses the second head 26 against the second base 25 by moving the second head 26 of the second processing part 22 in the downward direction D41. Thereby, the wire rod 2 is bent in the second direction D12. Further, the rotary feed unit 10 separates the clamp unit 15 from the wire rod 2 and retracts the clamp unit 15 in the retreat direction D22.

As described above, in the bending process of the second wire rod portion 2b of the wire rod 2, the rotary feed unit 10 feeds the wire rod 2 toward the bending unit 20 while curving the wire rod 2 at a predetermined pitch L3. Then, in the bending section 20, the wire 2 is bent in the second direction D12 by the second processing section 22. As a result, the second wire rod portion 2b is bent by repeatedly sending out the wire rod 2 and bending the wire rod 2 in the second direction D12. In the first embodiment, the bending process of the second wire rod portion 2b is performed until the joint portion P2 shown in FIG. 10 reaches the joint portion P3.

<Bending of the third wire rod>
An example of the bending process of the third wire rod portion 2c will be described with reference to FIGS. 13A to 13H are diagrams showing an example of a bending process in the third wire portion 2c of the dental wire 2. 13A to 13H show an example of a bending process performed on the third wire rod portion 2c from the joint portion P2 to the joint portion P3 of the wire rod 2 shown in FIG. 13A to 13D show an example of a bending process in the joint portion P3 between the second wire rod portion 2b and the third wire rod portion 2c. 13E to 13H show an example of a bending process of the third wire rod portion 2c.

In the first embodiment, the bending part 20 performs the first bending process and the second bending process in an overlapping manner at the joint part P3 between the second wire part 2b and the third wire part 2c.

As shown in FIG. 13A, when the second bending work by the second working part 22 is performed until the joint part P3 is reached, as shown in FIG. 13B, in the rotary feed part 10, the clamp part 15 holds the wire 2 in place. In the held state, the clamp portion 15 is moved backward in the backward direction D22 by a predetermined distance L4. As a result, the wire 2 is moved in the direction D4 opposite to the sending direction D3. That is, the wire rod 2 is retracted.

In the first embodiment, the predetermined distance L4 is set to the same length as the arrangement interval B2 between the first processing portion 21 and the second processing portion 22.

As shown in FIG. 13C, when the wire rod 2 is retracted by a predetermined distance L4, the terminal end portion E3 (see FIGS. 13A and 13B) of the second wire rod portion 2b moves in the direction D4 opposite to the delivery direction D3. Then, the first processing portion 21 is placed at the bending start position. That is, in the joint portion P3 between the second wire rod portion 2b and the third wire rod portion 2c, after the bending work is performed in the second working portion 22, the bending work is started in the first working portion 21. Moving.

As shown in FIG. 13D, the bending section 20 presses the first head 24 against the first base 23 by moving the first head 24 of the first processing section 21 in the downward direction D31. Thereby, the wire rod 2 is sandwiched between the first convex portion 23a and the first concave portion 24a, and is bent in the first direction D11.

In this way, in the joint portion P3, after being bent by the second processing portion 22 in the second direction D12, it is bent by the first processing portion 21 in the first direction D11.

As shown in FIG. 13E, the bending section 20 moves the second head 26 of the second processing section 22 in the upward direction D42. Then, the rotary feed part 10 moves the clamp part 15 in the forward direction D21 at a predetermined pitch L1 while holding the wire 2 by the clamp part 15. As a result, the wire rod 2 is delivered in the delivery direction D3 by the predetermined pitch L1.

As shown in FIG. 13F, when the wire rod 2 is sent out at a predetermined pitch L3, the portion E3 is placed at the end position of the bending work by the first working portion 21. The bending part 20 presses the first head 24 against the first base 23 by moving the first head 24 of the first processing part 21 in the downward direction D31. Thereby, the wire rod 2 is bent in the first direction D11. While the wire rod 2 is sandwiched between the first head 24 and the first base 23, the rotary feed unit 10 releases the holding of the wire rod 2 by the clamp unit 15. Then, the rotary feed unit 10 moves the clamp unit 15 in the backward direction D22.

As shown in FIG. 13G, after the rotary feed unit 10 retracts the clamp unit 15, the clamp unit 15 holds the wire rod 2. Next, the bending section 20 moves the first head 24 of the first processing section 21 in the upward direction D32. Then, the rotary feed part 10 moves the clamp part 15 in the forward direction D21 at a predetermined pitch L1 while holding the wire 2 by the clamp part 15. As a result, the wire rod 2 is delivered in the delivery direction D3 by the predetermined pitch L1.

As shown in FIG. 13H, the bending portion 20 presses the first head 24 against the first base 23 by moving the first head 24 of the first processing portion 21 in the downward direction D31. As a result, the wire rod 2 is bent in the first direction D11. Further, the rotary feed unit 10 separates the clamp unit 15 from the wire rod 2 and retracts the clamp unit 15 in the retreat direction D22.

Thus, in bending the third wire rod portion 2c of the wire rod 2, the rotary feed portion 10 feeds the wire rod 2 toward the bending portion 20 while bending the wire rod 2 at a predetermined pitch L1. Then, in the bending section 20, the wire 2 is bent in the first direction D11 by the first processing section 21. Thus, the third wire rod portion 2c is bent by repeatedly sending the wire rod 2 and bending the wire rod 2 in the first direction D11. In the first embodiment, the bending process of the third wire rod portion 2c is performed from the joint portion P3 shown in FIG. 10 to the other end P4.

As described above, in the processing device 1, the wire rod 2 is sent while being curved, and the wire rod 2 is bent in the first direction D11 and the second direction D12 that are different from the sending direction. This makes it possible to easily realize a three-dimensional shape such as the wire 3 shown in FIG.

[effect]
According to the processing device 1, the following effects can be achieved.

The processing device 1 includes a rotary feed unit 10 that feeds a dental wire rod 2 while bending it, and a bending unit that bends the wire rod 2 sent by the rotary feed unit 10 in a direction different from the feed-out direction D1 of the wire rod 2. 20 is provided. With such a configuration, the dental wire 2 can be easily processed. Specifically, the processing device 1 twists the wire rod 2 by bending the wire rod 2 by the rotary feed unit 10 and bending the wire rod 2 by the bending unit 20 in a direction different from the feed direction D1. Can be bent. Therefore, it can be easily processed into a three-dimensional shape like the orthodontic wire 3. Further, it is possible to perform processing with a smooth curved line as compared with the case where processing is performed manually.

The bending part 20 bends the wire 2 in a first direction D11 that is different from the feeding direction D1 of the wire 2 and bends the wire 2 in a second direction D12 that is different from the first direction D11. It has the 2nd process part 22 which processes. With such a configuration, it is possible to more easily process the three-dimensional shape of the wire rod 2.

The first processed portion 21 has a first base 23 having a first convex portion 23a protruding in the first direction D11, and a first concave portion 24a engaging with the first convex portion 23a of the first base 23. And a head 24. Further, the first processed portion 21 bends the wire rod 2 in the first direction D11 by sandwiching the wire rod 2 between the first convex portion 23a of the first base 23 and the first recessed portion 24a of the first head 24. To process. Further, the second processed portion 22 has a second base 25 having a second concave portion 25a recessed in the second direction D12 and a second convex portion 26a having a second concave portion 25a engaging with the second concave portion 25a of the second base 25. 2 heads 26. Further, the second processed portion 22 bends the wire rod 2 in the second direction D12 by sandwiching the wire rod 2 between the second concave portion 25a of the second base 25 and the second convex portion 26a of the second head 26. To process. With such a configuration, the wire 2 can be processed more easily.

In the first bending process by the first processing unit 21, the rotary feeding unit 10 sends out the wire 2 at a pitch L1 that is 0.1 times or more and 1.5 times or less the width B1 of the first processing unit 21, and the second processing unit In the second bending process by the wire 22, the wire rod 2 is sent out at a pitch L3 that is 0.1 times or more and 1.5 times or less the width B3 of the second processing portion 22. More preferably, in the first bending work by the first working portion 21, the wire rod 2 is sent out at the pitch L1 which is 0.5 times or more and 1 times or less the width B1 of the first working portion 21, and the second working portion 22 makes the second bending work. In the bending process, the wire 2 is sent out at a pitch L3 that is 0.5 times or more and 1 time or less than the width B3 of the second processed portion 22. Thereby, the wire rod 2 can be processed more easily.

In the bending part 20, when switching between the first bending process by the first processing part 21 and the second bending process by the second processing part 22, the rotary feed part 10 moves the wire rod 2 forward or backward to move the wire rod 2. The first bending process and the second bending process are overlapped at the portions P2 and P3 where the direction of the bending process is switched. With such a configuration, the wire 2 can be processed more easily. Further, the shape change of the wire rod 2 can be made smoother.

In the first embodiment, the processing apparatus 1 includes the rotary feed unit 10, the bending unit 20, the wire storage unit 30, the detection unit 40, the cutting unit 50, the receiving unit 60, the drive unit 70, and the display unit 80. However, the present invention is not limited to this. The processing device 1 only needs to include at least the rotary feed unit 10 and the bending unit 20.

In the first embodiment, the rotary feeding unit 10 has been described as an example of feeding the wire rod 2 while curving the wire rod 2 in an arc shape, but the present invention is not limited to this. The rotary feed unit 10 may bend and feed the wire rod 2 so as to form a continuous curve. For example, the rotary feeding unit 10 may bend and feed the wire rod 2 in a round shape or an elliptic shape.

In the first embodiment, the predetermined pitches L1, L3 and the predetermined distances L2, L4 of the rotary feed unit 10 are examples and are not limited to the set values described in the first embodiment.

In the first embodiment, the bending part 20 has been described as an example including the first processing part 21 and the second processing part 22, but the invention is not limited to this. The bending section 20 may include at least one processing section. The number of processed portions may be changed according to the shape of the wire 2 to be processed.
For example, the bending part 20 may have only the first processing part 21. Alternatively, the bending section 20 may include a third processing section in addition to the first processing section 21 and the second processing section 22.

In the first embodiment, an example in which the first processed portion 21 bends the wire rod 2 in the first direction D11 and the second processed portion 22 bends in the second direction D12 has been described, but the present invention is not limited to this. .. For example, the first direction D11 and the second direction D12 may be the same direction or different directions.

In the first embodiment, in the joint portions P2 and P3 of the wire 2 whose bending directions are switched, the first bending section 21 makes the first bending step in the first direction D11 and the second bending section 22 makes the second bending section 22. Although the example in which the second bending work for the direction D12 and the second bending work are performed overlappingly has been described, the invention is not limited to this. For example, in the joint portions P2 and P3, the first bending process and the second bending process do not have to be overlapped.

In the first embodiment, the drive unit 70 has been described as an example including a motor that rotates the rotary feed unit 10, a cam mechanism that drives the first processing unit 21 and the second processing unit 22 of the bending processing unit 20, and the like. It is not limited to this. The drive unit 70 may include an arbitrary mechanism for driving and sticking the rotary feed unit 10 and the bending unit 20.

Although the wire rod 2 made of the β-type Ti alloy is described as an example in the first embodiment, the present invention is not limited to this. The wire 2 may be made of a material used as a dental wire. For example, the wire rod 2 may be made of biocompatible material such as pure titanium, stainless steel, or cobalt chrome alloy.

In the first embodiment, an example in which the wire 2 has an elliptical cross-sectional shape has been described, but the present invention is not limited to this. The wire 2 may have a cross-sectional shape having a longitudinal direction. For example, the wire 2 may have a rectangular cross-sectional shape other than an ellipse. Alternatively, the wire rod 2 may have a cross-sectional shape such as a circle or a regular polygon.

The dental wire 2 may be coiled in advance and formed into an arc shape. That is, the wire rod 2 may be formed by being curved in an arc shape. In this way, the wire rod 2 that has been formed into an arc shape in advance is fed by the rotary feed unit 10 and bent by the bending unit 20, so that the wire rod 2 can be three-dimensionally processed more easily. For example, when the wire rod 2 made of a β-type Ti alloy, which is a material having a very high restoring force, is processed three-dimensionally, the wire rod 2 can be processed more easily in three dimensions.

In the first embodiment, the orthodontic wire 3 is described as an example of a wire that is formed in a substantially U shape when viewed from above (Z direction) and that has a curved shape in the vertical direction. However, it is not limited to this.

Although the present invention has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. It is to be understood that such variations and modifications are intended to be included therein without departing from the scope of this invention according to the appended claims.

INDUSTRIAL APPLICABILITY The processing apparatus and the processing method according to the present invention can easily process a dental wire, and are therefore useful for processing an orthodontic wire, for example.

DESCRIPTION OF SYMBOLS 1 Processing device 2 Wire material 3 Orthodontic wire 10 Rotating feed part 20 Bending processing part 21 1st processing part 22 2nd processing part 23 1st base 23a 1st convex part 24 1st head 24a 1st recessed part 25 2nd base 25a 2nd recessed part 26 2nd head 26a 2nd convex part 30 Wire rod storage part 40 Detection part 50 Cutting part 60 Receiving part 70 Drive part 80 Display part 90 Control part

Claims (7)

A processing device for processing a dental wire,
A rotary feeding unit that feeds the wire rod while bending it,
A bending part that bends the wire sent by the rotary sending part in a direction different from the sending direction of the wire,
A processing device including. The bending portion is
A first processing portion that bends the wire rod in a first direction different from the feeding direction of the wire rod;
A second processing portion for bending the wire rod in a second direction different from the first direction;
The processing apparatus according to claim 1, further comprising: The first processing section,
A first base having a first protrusion protruding in the first direction;
A first head having a first concave portion that engages with the first convex portion of the first base;
Have
By bending the wire rod in the first direction by sandwiching the wire rod between the first convex portion of the first base and the first concave portion of the first head,
The second processing section,
A second base having a second recess recessed in the second direction;
A second head having a second convex portion that engages with the second concave portion of the second base;
Have
The wire rod is bent in the second direction by sandwiching the wire rod between the second recess of the second base and the second protrusion of the second head,
The processing device according to claim 2. The rotary feed unit,
In the first bending work by the first working part, the wire material is sent out at a pitch of 0.1 times or more and 1.5 times or less the width of the first working part,
In the second bending work by the second working part, the wire is sent out at a pitch of 0.1 times or more and 1.5 times or less the width of the second working part.
The processing apparatus according to claim 2 or 3. In the bending portion, when switching between the first bending processing by the first processing portion and the second bending processing by the second processing portion,
The rotation feed unit causes the wire rod to move forward or backward, thereby overlapping the first bending process and the second bending process at a portion where the bending process direction of the wire rod switches.
The processing device according to any one of claims 2 to 4. The said wire is a processing apparatus as described in any one of Claims 1-4 which has a cross-sectional shape which has a longitudinal direction. The processing device according to any one of claims 1 to 5, wherein the wire is curved and formed in an arc shape.

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