CN211331132U

CN211331132U - Dental arch wire production mold

Info

Publication number: CN211331132U
Application number: CN201921496496.0U
Authority: CN
Inventors: 王能为
Original assignee: Panzhihua University
Current assignee: Panzhihua University
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-08-25
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses a be used for tooth arch wire production mould in mould technical field, including last mould and lower mould, lower mould top surface middle part is equipped with the bow-shaped groove of undercut, and the axis direction and the lower mould width direction in bow-shaped groove are unanimous, are equipped with many arc walls of arranging along lower mould length direction in lower mould top surface and concave groove, and arc wall diameter and degree of depth are unanimous with tooth arch wire diameter, the bottom surface middle part of going up the mould be equipped with bow-shaped groove assorted arch boss. The utility model has the advantages that: through setting up an arch-shaped groove on the lower mould to set up many arc-shaped grooves in lower mould top surface and arch-shaped inslot, utilize and go up the mould and impress the wire in the arch-shaped inslot and form the dental arch wire, because can place many alloy silk on the lower mould, once moulding-die also can produce many dental arch wires, compare traditional single bending, produce through the mode of punching press, easy operation, efficiency is higher, and dental arch wire shaping quality is better.

Description

Dental arch wire production mold

Technical Field

The utility model relates to the technical field of molds, especially, relate to a mold for production of tooth arch wire.

Background

The tooth orthodontics achieves the purpose of correcting tooth deformity through tooth movement or displacement, so that teeth are arranged regularly and aligned up and down, and the tooth looseness is reduced and avoided. In the correcting process, the movement of the teeth is controlled by the elastic force which is generated continuously and effectively and has a certain size in the deformation process of the correcting arch wire, so that the correcting purpose is achieved, and the regular arrangement of the teeth is realized. The metal wire currently used for tooth correction is a tooth correction wire, also called a dental arch wire. The main orthopedic wires used in the market are stainless steel wires and NiTi shape memory alloy wires. The stainless steel orthopedic wire has small elastic range, larger orthopedic force ratio and small orthopedic displacement. The nickel-titanium alloy wire has the characteristics of shape memory and super elasticity, soft and durable correcting force and wide displacement range, and is the most widely used dental arch wire at present.

The production process of the traditional dental arch wire is generally that metal drawing is finished and then the metal drawing is sent into a forming die for bending forming, the existing forming die is single in manufacture and low in manufacturing efficiency, the specification and the size of the prepared titanium alloy dental arch wire cannot well meet the use requirements, the mechanization degree is not high enough, and the one-time production is not much.

SUMMERY OF THE UTILITY MODEL

For overcoming the defects of low production efficiency and the like of the existing dental arch wire forming die, the utility model aims to solve the technical problems that: provides a dental arch wire production mould with high production efficiency.

The utility model provides a technical scheme that its technical problem adopted is:

dental arch wire production mould, including last mould and lower mould, lower mould top surface middle part is equipped with undercut's bow-shaped groove, and the axis direction in bow-shaped groove is unanimous with lower mould width direction, is equipped with many arc walls of arranging along lower mould length direction in lower mould top surface and bow-shaped inslot, and arc wall diameter and degree of depth are unanimous with dental arch wire diameter, the bottom surface middle part of going up the mould be equipped with bow-shaped groove assorted arch boss.

Furthermore, one side of the lower die in the length direction is provided with a lower die handle for clamping the clamp.

Furthermore, an upper die handle for clamping the clamp is arranged at the top of the upper die.

Further, a circular arc chamfer is arranged at the junction of the top surface of the lower die and the opening of the arched groove.

Further, the top surface of the lower die is provided with a cutting groove arranged along the width direction of the lower die, the cutting groove is positioned on one side of the arched groove close to the feeding end, and the upper die is provided with a cutting knife corresponding to the cutting groove.

The utility model has the advantages that: through setting up an arch-shaped groove on the lower mould to set up many arc-shaped grooves in lower mould top surface and arch-shaped inslot, utilize and go up the mould and impress the wire in the arch-shaped inslot and form the dental arch wire, because can place many wires on the lower mould, once moulding-die also can produce many dental arch wires, compare traditional single bending, produce through the mode of punching press, easy operation, efficiency is higher, and dental arch wire shaping quality is better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a plan view of the lower mold of the present invention.

Marked in the figure as 1-upper die, 2-lower die, 11-arc boss, 12-upper die handle, 13-cutting knife, 21-arc groove, 22-arc groove, 23-lower die handle, 24-arc chamfer and 25-cutting groove.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a dental arch wire production mould, including last mould 1 and

lower mould

2, 2 top surfaces middle parts of lower mould are equipped with undercut bow-shaped groove 21, and bow-shaped groove 21's axis direction is unanimous with 2 width direction of lower mould, are equipped with many arc walls 22 of arranging along lower mould length direction in 2 top surfaces of lower mould and bow-shaped groove 21, and arc wall 22 diameter and degree of depth are unanimous with dental arch wire diameter, the bottom surface middle part of going up mould 1 is equipped with bow-shaped boss 11 with bow-shaped groove 21 assorted.

The male die for producing the dental arch wire, namely the upper die 1, belongs to a special-shaped male die, so that the machining process adopts wire cutting machining, a rough die is manufactured by utilizing the wire cutting machining of the electric spark, and then grinding and polishing are carried out.

The female die, namely the lower die 2, belongs to a special-shaped female die, so that a rough sample can be manufactured by wire cut electrical discharge machining and then polished.

The machining of the arc-shaped groove 22 on the lower die 2 adopts a coordinate boring machine, and because the machining precision is high, the small-sized groove can be accurately machined, and the automation degree is high. The groove machining comprises the steps of firstly grooving, then grooving, carrying out heat treatment, and then grinding and polishing. According to the size of the dental arch wire and the requirement of the manufacturing precision of the die, the size of the lower die 2 can meet the requirement that 20 arc-shaped grooves 22 are arranged side by side.

The use process of the die is as follows: after the wire drawing is finished, the alloy wires are placed into wire feeders, the wire feeders are applied to a plurality of wire feeders, the alloy wires are fed into the arc-shaped groove 22 on the top surface of the lower die 2 from one end of the lower die 2 at a certain speed and reach a specified position, and then the two ends of the alloy wires are pressed by the cover plates, so that the cover plates mainly prevent the alloy wires from upwarping in the pressing process and do not limit the movement of the alloy wires. The upper die 1 is pressed at a certain speed under the action of mechanical power, the speed must not be too high, otherwise unnecessary damage to the surface of the wire material and influence on the surface shape and the finish degree can be caused. And (3) extruding the alloy wire into a dental arch shape along with the slow pressing of the upper die 1, after the upper die 1 is pressed down, ascending under the action of mechanical force, removing a cover plate for fixing the dental arch wire after the alloy wire is lifted to a certain distance away from the lower die 2, and cutting the alloy wire to obtain a finished dental arch wire.

In order to install the upper die 1 and the lower die 2 on the power equipment conveniently, an upper die handle 12 for clamping a clamp is arranged at the top of the upper die 1, and a lower die handle 23 for clamping the clamp is arranged at one side of the lower die in the length direction. The lower die is preferably mounted on a rotatable jaw, and after the dental arch wire is formed by pressing, the formed dental arch wire can be poured out on the platform by rotating the lower die downwards.

Because the corner is arranged between the arched groove and the top surface of the lower die, the alloy wire is easy to scratch at the corner in the pressing process, and the product quality is influenced. In order to avoid the defect, an arc chamfer 24 is arranged at the junction of the top surface of the lower die and the opening of the arched groove, and the radius of the chamfer is 0.5mm according to the size of the dental arch wire.

Further, in order to cut off the alloy wire conveniently, a cutting groove 25 arranged along the width direction of the lower die 2 is arranged on the top surface of the lower die, the cutting groove 25 is positioned on one side of the arched groove 21 close to the feeding end, and a cutting knife 13 corresponding to the cutting groove 25 is arranged on the upper die. The feeding end of the lower die 2 refers to the end close to the wire feeder. The position of the cutting groove 25 should be close to the boundary of the arc-shaped groove 21 as far as possible, and the distance is about 1mm, so that material waste and subsequent processing are avoided. When the alloy wire is sent into the lower die 2 by the wire feeder, the end part of the alloy wire exceeds the boundary of the arch-shaped groove 21 for a certain distance, after the pressing is finished, the end part of the alloy wire just can become one end of the dental arch wire, and the other end of the alloy wire is formed after the alloy wire is cut off by the matching of the cutting knife 13 and the cutting groove 25. After cutting, the lower die 2 is driven by the motor to overturn, the dental arch wire is poured out, and then the dental arch wire is rotated back to carry out next feeding and pressing, so that continuous production operation can be carried out.

The utility model discloses a set up an arch groove 21 on lower mould 2 to set up many arc grooves 22 in 2 top surfaces of lower mould and arch groove 21, utilize and go up mould 1 and impress the wire in arch groove 21 and form the dental arch wire, because can place many alloy wires on lower mould 2, a moulding-die just also can produce many dental arch wires, compare traditional single bending, mode production through the punching press, and easy operation, efficiency is higher, and dental arch wire shaping quality is better, has fine practicality and application prospect.

Claims

1. The dental arch wire production mold is characterized in that: including last mould (1) and lower mould (2), lower mould (2) top surface middle part is equipped with undercut bow-shaped groove (21), and the axis direction of bow-shaped groove (21) is unanimous with lower mould (2) width direction, is equipped with many arc-shaped groove (22) of arranging along lower mould length direction in lower mould (2) top surface and bow-shaped groove (21), and arc-shaped groove (22) diameter and degree of depth are unanimous with tooth arch wire diameter, the bottom surface middle part of going up mould (1) is equipped with bow-shaped boss (11) with bow-shaped groove (21) assorted, lower mould (2) top surface is equipped with cuts cut groove (25) of arranging along its width direction, cut groove (25) and be located one side that bow-shaped groove (21) are close to the feed end, go up the mould on be equipped with cut cutting knife.

2. A dental archwire producing die as in claim 1, wherein: one side of the lower die (2) in the length direction is provided with a lower die handle (23) which can be clamped by a clamp.

3. A dental archwire producing die as in claim 1, wherein: an upper die handle (12) which can be clamped by the clamp is arranged at the top of the upper die (1).

4. A dental archwire producing die as in claim 1, wherein: and an arc chamfer (24) is arranged at the junction of the top surface of the lower die (2) and the opening of the arched groove (21).