CN212816600U

CN212816600U - Injection molding machine for processing false teeth

Info

Publication number: CN212816600U
Application number: CN202023100985.5U
Authority: CN
Inventors: 马群劳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-03-30
Anticipated expiration: 2030-12-22

Abstract

The utility model provides an injection molding machine for processing false teeth, which comprises an injection molding processing piece and a positioning seat; the positioning seat comprises a frame body and a pressurizing plate, a first through hole is formed in the bottom of the frame body, an installation cavity is formed in the frame body, and injection molding workpieces can be installed in the installation cavity; the injection molded part is defined by a bottom wall, a first side wall and a circular arc side wall. The utility model discloses the structure is exquisite, has realized the in-process of moulding plastics and has moulded plastics the fixed of machined part, artificial tooth position, has improved work efficiency, has good application prospect.

Description

Injection molding machine for processing false teeth

Technical Field

The utility model belongs to the technical field of the device of moulding plastics, especially, relate to an injection molding machine for processing artificial tooth.

Background

The false tooth is an artificial tooth for replacing a lost natural tooth, also called false tooth, severe periodontal disease, decayed tooth, trauma and other reasons, can cause partial or even complete loss of the tooth, and needs to be provided with the false tooth to help people to complete functions such as chewing and the like; the denture injection molding is that in the denture manufacturing process, manufacturing materials are heated to a certain temperature, extruded into a denture model, and taken out after being cooled and solidified.

The existing denture injection molding is carried out in a dental box, but the position of the dental box is difficult to determine and position, and the dental box is easy to deviate in the working process, so that the problems of insufficient product forming precision and low efficiency are caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model discloses an injection molding machine for processing false teeth, which comprises an injection molding processing piece and a positioning seat;

the positioning seat comprises a frame body and a pressurizing plate, a first through hole is formed in the bottom of the frame body, an installation cavity is formed in the frame body, and injection molding workpieces can be installed in the installation cavity;

the injection molding workpiece is defined by a bottom wall, a first side wall and a circular arc side wall; the shape of the upper part of the first side wall is as follows: gradually bulges from the connecting end of the arc side wall to the middle direction; the bottom wall has the following shape: gradually bulges from the connecting end of the first side wall and the arc side wall to the middle, and the bulge area of the bottom wall corresponds to the bulge area of the first side wall; the raised area of the bottom wall is higher along with the height of the raised area, and the raised length is correspondingly longer; an injection molding groove is formed between the raised area of the bottom wall and the arc side wall;

the first side wall is provided with at least one discharge hole and at least one first injection molding hole; a first injection molding opening is formed in the bottom wall, and the position of the first through hole corresponds to the position of the first injection molding opening in the bottom wall;

the top of the frame body of the positioning seat is provided with a clamping piece, and the position of the pressurizing plate corresponding to the clamping piece is provided with a clamping piece passing hole capable of accommodating the clamping piece to pass through.

Furthermore, a resistance wire or an electric heating plate is arranged on the outer wall of the injection molding processing piece.

Further, the bottom of the injection-molded workpiece is provided with an installation supporting leg, a concave part is arranged on the frame body corresponding to the installation supporting leg, and the tail end of the installation supporting leg can be clamped into the concave part.

Further, the lower surface of the bottom of the injection molding machined part is provided with a raised line used for stabilizing the injection molding machined part along the radian and the direction of the injection molding groove.

Furthermore, at least one clamping piece is arranged on each of two opposite sides of the upper portion of the frame body, the clamping pieces are formed by vertically fixing two sides together, one side of each clamping piece is perpendicular to the upper edge of the frame body, and the other side of each clamping piece is suspended and parallel to the horizontal plane.

Furthermore, screens piece and framework integrated into one piece.

Furthermore, two clamping parts are respectively arranged on the edges of two opposite sides of the top of the frame body.

Furthermore, the frame body is enclosed by the bottom and two opposite side walls.

Furthermore, arc transition is adopted between the first side wall and the arc side wall.

Further, the upper edge of the injection molding workpiece extends along the horizontal direction, and the extending part is provided with a mounting hole.

The utility model has the advantages that:

the utility model discloses the structure is exquisite, has realized the in-process of moulding plastics and has moulded plastics the fixed of machined part, artificial tooth position, has improved work efficiency, has good application prospect.

Drawings

Fig. 1 is a schematic block diagram.

Fig. 2 is a schematic view of a pressing plate.

Fig. 3 is a schematic view of an injection molded part.

Fig. 4 is a schematic view of the injection molded workpiece when it is installed in the positioning socket.

In the figure: 1. a frame body; 2. a pressurizing plate; 3. a clamping piece; 4. a clamping part passing hole 5 and an injection molding machined part; 6. a first injection port; 7. a second injection port; 8. a discharge port; 9. a raised region of the first sidewall; 10. recess, 11, first through hole, 12, mounting foot.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to fig. 1 to 4.

The utility model discloses an injection molding machine for processing artificial tooth includes the positioning seat, can install the machined part 5 of moulding plastics in the positioning seat. Which are described separately below.

First, positioning seat

The positioning seat comprises a frame body 1 (shown in figure 1) and a pressurizing plate 2 (shown in figure 2) for accommodating the injection molding machined part 5 and limiting the injection molding machined part 5 placed in the frame body. Specifically, the positioning seat can limit the injection-molded article 5 in both the side wall direction and the vertical direction of the housing by the housing 1 and the pressure plate 2.

The pressing plate 2 can be movably fixed on the upper part of the frame body 1 by adopting a common mode in the prior art so as to realize the limit in the vertical direction.

In this embodiment, the fixing manner of the pressure plate 2 and the frame 1 is as follows: at least one blocking part 3 is arranged at the upper part of the frame body 1. The blocking part 3 is formed by vertically fixing two sides together, wherein one side is vertically fixed on the upper edge of the frame body 1, and the other side is parallel to the horizontal plane and is suspended. The locking member 3 can be formed integrally with the frame 1. The free edge forms a gap with the upper part of the frame 1, which gap can accommodate the clamping of the pressure plate 2. The bottom wall of the frame 1 is provided with a first through hole 11 corresponding in position to a first injection port 6 (not shown) provided at the raised area of the bottom wall.

The pressurizing plate 2 is provided with a stopper passage opening 4 at a position corresponding to the stopper 3, and the stopper passage opening 4 has a length smaller than that of the stopper 3. During the installation, operating personnel lifts up pressure plate 2 for the unsettled limit of screens piece 3 penetrates from screens piece through mouth 4, passes screens piece through mouth 4 back completely when this unsettled limit, pushes away pressure plate 2 one after, can accomplish pressure plate 2's fixing, can not the landing easily. The fixing mode has simple structure and low cost, and realizes the firm fixation of the pressurizing plate 2.

Preferably, two locking members 3 are disposed on the upper edges of the two side walls of the frame 1, respectively, and the directions are the same.

Preferably, in this embodiment, in order to observe the injection molding condition, the frame 1 has only two side walls which are oppositely arranged except for the bottom plate.

Secondly, injection molding workpiece 5

The injection-molded part 5 is used to provide an injection-molding space. As shown in fig. 3, the injection-molded part 5 is defined by a bottom surface, a first side wall and a circular arc side wall. The shape of the upper part of the first side wall is as follows: gradually bulging from both ends towards the middle; the bottom surface is in the form: the bottom wall gradually bulges from the two ends to the middle, and the bulge area of the bottom wall corresponds to the bulge area 9 of the first side wall in position; the raised area of the bottom surface is higher along with the raised height, the raised length is correspondingly longer, and the shape is similar to the palate of a human mouth; an injection molding groove is formed between the raised area of the bottom surface and the arc side wall, and the shape of the injection molding groove is similar to that of a human dental arch. "similar" is used because the shape need not be precisely defined, as long as it is substantially the shape of a human dental arch, but can of course be precisely machined to some fixed configuration.

Looking down the injection-molded workpiece 5 in the present embodiment, it can be seen that the shape of the upper edge thereof is similar to the shape enclosed by an edge of an ellipse on the side of the minor axis and the minor axis. "similar" is used because the shape need not be precisely defined, so long as it is substantially the same as described above. Of course, the shape of the half ellipse can be precisely processed. Preferably, in order to increase the overall robustness of the injection-molded part 5 and to distribute stresses during machining, an arc-shaped transition is used between the first side wall and the arc-shaped side wall.

In some embodiments, the upper edge of the cavity of the injection molded part 5 may also extend horizontally, and the extension portion may also be provided with a mounting hole, and the edge of the extension portion is the integral edge of the injection molded part 5. The shape of the extension portion edge is not limited in this embodiment, and may be any shape.

For the injection molding, the raised region 9 of the first side wall is provided with at least one injection opening and the injection molded part 5 is provided with at least one discharge opening 8. In the present exemplary embodiment, a first injection opening 6 is provided in the raised area 9 of the first side wall, and two outlet openings 8 and a second injection opening 7 are provided in the remaining area of the first side wall. The first injection port 6 can realize the injection molding of the upper teeth, and the second injection port 7 can realize the injection molding of the lower teeth. Generally speaking, the mouth of moulding plastics is bigger than the discharge gate for the process of moulding plastics is more stable, and efficiency is higher.

Preferably, for better fixing the injection-molded workpiece 5, the lower surface of the bottom wall of the injection-molded workpiece 5 is provided with a mounting leg 12, the bottom wall of the frame 1 is provided with a recess 10 corresponding to the mounting leg 12, and the end of the mounting leg 12 can be clamped into the recess 10.

More preferably, the lower surface of the bottom wall of the injection molded part 5 is provided with a convex strip for stabilizing the injection molded part 5 along the radian and direction of the injection molding groove. The ends of the ribs are preferably level with the ends of the mounting legs 12.

More preferably, a heating device may be disposed on the outer wall of the injection-molded workpiece 5, and the heating device may be a resistance wire or an electric heating plate to heat the material in the injection-molded workpiece 5.

As a preferred embodiment, the utility model discloses still include a mount, the mount includes the support body, and the support body below has the jaw, the jaw can stretch into injection molding machined part 5 diapalls, and the support body top has a briquetting, and the piece is fixed in on the support body through the rotation axis activity. The fixing frame is used for compressing the injection molding workpiece and the gypsum in the injection molding process.

The following explains the method of use of the present invention:

the method comprises the following steps: the prepared denture is arranged on a wax pattern in advance, and a separating agent is smeared on the wax pattern, the false tooth and a plaster model positioned under the wax pattern. The wax pattern is pre-designed according to the oral condition of the patient, and those skilled in the art will appreciate that the plaster model under the wax pattern serves to support the wax pattern. The separating agent is a commonly used chemical for separating the mold from the raw material, and belongs to the existing product.

Step two: and blocking the injection molding openings and the discharge opening 8. In particular, the injection port and the discharge port 8 which are needed to be used subsequently need to extend into the cavity of the injection molding machined part 5 by using long screws.

Step three: the gypsum slurry is poured into the injection-molded workpiece 5.

Step four: the wax pattern and the plaster model with the denture fixed are immersed in the plaster slurry.

Step five: cooling until the gypsum slurry sets. After solidification, the original false tooth and wax pattern. The plaster model is contained in the plaster.

Step six: taking out the solidified gypsum, heating and melting the wax pattern into wax liquid. Due to the use of the separating agent, the gypsum pattern is not integrated with the gypsum slurry and can be removed. The denture is fixed in the plaster. The heating may be by hot water soaking.

Step six: the plaster model is taken down, the false tooth and the solidified plaster are exposed, and the wax liquid is washed away by water.

Step seven: and (3) covering the gypsum model back to the original position, putting the injection molding workpiece 5 and the solidified gypsum into the positioning seat, pouring the gypsum on the gypsum model, covering the compression plate 2 (as shown in figure 4), selecting the required injection molding opening and the discharge opening 8 according to the requirement, and taking out the corresponding long screws. At this time, a fixing frame can be added, so that when the pressure plate is pressed to cast and the maxillary teeth need to be processed, the injection opening of the bulged area 9 on the first side wall needs to be opened, so that the base powder can be molded in the bulged area 9 on the first side wall to form the maxillary tooth model. When it is desired to work the mandibular teeth, it is necessary to open the injection moulding opening without the need to form the raised area 9 of the first side wall.

Step eight: and injecting the mixed base powder slurry through an injection molding port, and filling the base powder to the position of the original wax support to form a shape the same as that of the wax support. The excess powder will be discharged through the outlet 8.

Step nine: and heating the whole injection molding machine. When the outer wall of the injection molding workpiece is not provided with a heating device, the injection molding workpiece can be placed into a heating container for heating, and when the injection molding workpiece is provided with the heating device, the injection molding workpiece can work to generate heat. And after the base powder slurry is solidified and formed, taking out the injection molding workpiece 5, and taking down the gypsum model to see that the orthodox teeth are fixed on the base formed by the base powder.

Step ten: and taking down the base and the false tooth, and polishing the base to obtain the finished product of the false tooth capable of being installed.

The above description is only for the specific implementation of the present invention, but the protection scope of the present invention is not limited to the above embodiments, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An injection molding machine for processing false teeth is characterized by comprising an injection molding processing piece and a positioning seat;

2. The injection molding machine for processing dentures as claimed in claim 1, wherein a resistance wire or an electric heating plate is provided on the outer wall of the injection-molded work piece.

3. The injection molding machine for processing the false tooth according to claim 1, wherein the bottom of the injection molding workpiece is provided with a mounting support leg, the frame body is provided with a concave part corresponding to the position of the mounting support leg, and the tail end of the mounting support leg can be clamped into the concave part.

4. The injection molding machine for processing a denture as claimed in claim 1, wherein the lower surface of the bottom of the injection workpiece is provided with a rib for stabilizing the injection workpiece along the radian and direction of the injection groove.

5. An injection molding machine for processing dentures as claimed in claim 1, 2, 3 or 4, wherein at least one locking member is provided on each of two opposite sides of the upper portion of the frame, and the locking members are formed by vertically fixing two sides together, one of which is perpendicular to the upper edge of the frame and the other of which is suspended and parallel to the horizontal plane.

6. The injection molding machine for working dentures as claimed in claim 5, wherein the engaging member is integrally formed with the frame body.

7. An injection molding machine for producing dentures as claimed in claim 6, wherein two engaging members are provided on opposite side edges of the top of the frame.

8. An injection molding machine for fabricating dentures as claimed in claim 7, wherein said frame is surrounded by a bottom and two oppositely disposed side walls.

9. An injection molding machine for forming dentures as claimed in claim 1, wherein an arcuate transition is provided between the first sidewall and the arcuate sidewall.

10. An injection molding machine for working dentures as claimed in claim 1, wherein the upper edge of said injection work piece extends along a horizontal direction, and the extended portion is provided with a mounting hole.