CN112903432B - Dentistry diaphragm elastic recovery testing arrangement - Google Patents

Abstract

The invention discloses a device for testing the elastic recovery of a dental diaphragm, which belongs to the relevant field of medical instruments and comprises a fixed plate, and a stretching mechanism and a heating mechanism which are arranged on the fixed plate, wherein the stretching mechanism comprises two groups of stretching assemblies which are vertically arranged; each group of stretching assemblies comprises two clamping units arranged on the fixing plate. Two groups of stretching assemblies which are transversely and longitudinally arranged are used for cooperative work, four clamping units are clamped on four sides of a piece of split diaphragm, then heating, stretching and cooling are carried out, the length and width size change and the area size change of the diaphragm before and after cooling are observed, the linear stretching comprehensive rebound rate of the diaphragm is obtained, and the change rule of the rebound performance of the diaphragm is mastered, so that the invisible appliance or the orthodontic retainer can be guided to be manufactured better.

Description

A dental diaphragm elastic recovery test device

technical field

The invention relates to a dental related test device, in particular to a dental diaphragm elastic recovery test device.

Background technique

At present, the dental diaphragms on the market mostly use a single-layer or multi-layer structure of a single material, and the thickness of the entire dental diaphragm is the same. Generally, dental diaphragms are used to make invisible appliances or orthodontic retainers. The method of using dental diaphragms to make invisible appliances or orthodontic retainers is as follows: first place the tooth model on the dental diaphragm; The diaphragm is heated; then vacuum forming is performed, generally using vacuum force to stretch and deform the dental diaphragm sheet to make the shape of invisible appliance or orthodontic retainer; finally, cooling and forming.

After blister molding and stretching deformation of the dental diaphragm, the dental diaphragm may spring back due to cooling, and the springback is too large, which will lead to the original manufactured invisible appliance or orthodontic retention. The size of the device shrinks and it cannot be used. The resilience performance of different dental diaphragms is different, so it is necessary to test the resilience characteristics of each type of dental diaphragm.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a dental diaphragm elastic recovery test device to solve the above-mentioned problems in the background art.

In order to solve the deficiencies of the above-mentioned prior art, the present invention provides the following technical solutions:

A dental diaphragm elastic recovery test device, comprising a fixing plate, a stretching mechanism and a heating mechanism arranged on the fixing plate, the stretching mechanism comprises two sets of stretching components, and the two sets of stretching components are arranged perpendicular to each other; The stretching assembly includes two clamping units installed on the fixing plate, one of which is slidably installed on the fixing plate, and the other clamping unit is fixedly installed on the installation short plate. The installation short plate is connected to the fixed plate. The clamping unit includes a mounting seat connected with the fixing plate, the upper and lower end surfaces of the mounting seat are hingedly mounted with an upper clamping plate, and the two upper clamping plates are connected by a fixing assembly.

As an improved solution of the present invention, the installation long plate is fixedly installed on the fixing plate, the installation long plate is provided with a chute, and a clamping unit is slidably installed in the chute, and the installation long board is The edges are set with tick marks.

As another improved solution of the present invention: the fixing assembly comprises a second elastic piece and a first elastic piece respectively connected with the two upper splints, and the second elastic piece and the first elastic piece are provided with protrusions that engage with each other; A plurality of engaging teeth for fixing the diaphragm are fixedly installed on the inner surface of the upper clamping plate.

As a further improvement of the present invention, the heating mechanism includes a heating block installed in a mounting hole at the center of the fixed plate, a support rod is rotatably installed on the fixed plate, and another support rod is connected to the support rod through a connecting rod. A heating block, the connecting rod is slidably installed on a support rod, and a curved surface stretching mechanism is also installed on the support rod.

As a further solution of the present invention: the curved surface stretching mechanism includes a support plate fixedly installed on the support rod, a limit slot is defined on the support plate, a limit component is arranged in the limit slot, and the limit component A mounting plate is fixedly installed on the end surface of the device, and a curved plate used for the curved surface deformation test of the diaphragm is mounted on the mounting plate.

As a further solution of the present invention: the mounting plate is provided with a plurality of adjustment holes, the two ends of the curved plate are fixedly installed with a plurality of clips, and the two ends of the curved plate are clamped on the two inside the adjustment hole.

As an optimized solution of the present invention, the limit assembly includes a push rod disposed in the limit groove, and a plurality of inclined limit blocks are fixedly installed on both sides of the push rod.

Compared with the prior art, the beneficial effects of the present invention are:

1. Use two sets of stretching components arranged horizontally and vertically to work together, clamp the four clamping units on the four sides of a cut membrane at the same time, then heat, stretch and cool, and observe the length of the membrane before and after cooling. Width dimension change and area dimension change, the comprehensive springback rate of linear stretching of the diaphragm can be obtained, and the change law of its resilience performance can be mastered, so as to better guide the production of invisible aligners or orthodontic retainers.

2. The two ends of the curved plate are inserted into different adjustment holes. By changing the number of adjustment holes between the two ends of the curved plate, the curved surface radian of the curved plate can be changed, and the resilience performance of the diaphragm can be measured under multiple radians. The measured rebound data is increased, the measurement range is wider, and the measurement results are more accurate.

Description of drawings

1 is a front view of a dental diaphragm elastic recovery test device;

Fig. 2 is a top view of a dental diaphragm elastic recovery test device;

3 is a schematic diagram of the partial structure of a curved surface stretching mechanism of a dental diaphragm elastic recovery test device;

4 is an enlarged view of a dental diaphragm elastic recovery test device A;

5 is a three-dimensional view of a clamping unit of a dental diaphragm elastic recovery test device;

In the picture: 1-Fixing plate, 2-Installing short plate, 3-Upper splint, 4-Installing long plate, 5-Chute, 6-Tick mark, 7-Installation hole, 8-Support rod, 9-Connecting rod, 10-Support plate, 11-Limit slot, 12-Push rod, 13-Heating block, 14-Mounting seat, 15-First shrapnel, 16-Bite teeth, 17-Limit block, 18-Installation plate, 19- Adjustment hole, 20-curved plate, 21-buckle piece, 22-second elastic piece.

Detailed ways

The following embodiments will describe the present invention in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention, but not to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.

Please refer to FIG. 1 and FIG. 2 , the present embodiment provides a dental diaphragm elastic recovery test device, including a fixing plate 1 , a stretching mechanism and a heating mechanism arranged on the fixing plate 1 , and the stretching mechanism includes two groups Tensile assembly, two sets of stretching assemblies are arranged perpendicular to each other; each group of the stretching assemblies includes two clamping units installed on the fixed plate 1, one of which is slidably installed on the fixed plate 1, and the other clamps The holding unit is fixedly installed on the installation short board 2, the installation short board 2 is connected with the fixed board, the clamping unit includes a mounting seat 14 connected with the fixed board 1, and the upper and lower end surfaces of the mounting seat 14 are hinged. An upper clamping plate 3 is installed, and the two upper clamping plates 3 are connected by a fixing assembly. An installation long plate 4 is fixedly installed on the fixing plate 1 , a chute 5 is arranged on the installation long plate 4 , and a clamping unit is slidably installed in the chute 5 , and the edge of the installation long plate 4 is set. There is a tick mark 6. When in use, cut a plurality of membranes of equal length on a piece of membrane according to the horizontal and vertical directions, and clamp the laterally cut membranes in a set of stretching components arranged in the lateral direction. The two clamping units are fixed, and the diaphragm is heated by the heating mechanism, and then one of the clamping units is slid to make the dental diaphragm stretched. After stretching, the sliding clamping unit is released, marking the sliding clamping unit. The position of the end face of the diaphragm, wait for the diaphragm to cool, observe the position of the end face of the diaphragm after cooling, compare whether the end face of the diaphragm moves before and after cooling, and measure the moving distance, this distance is the transverse stretching and cooling of the diaphragm After the rebound distance, divide the rebound distance by the total length of the diaphragm to obtain the rebound rate of the diaphragm, measure the transverse rebound rate of the diaphragm for many times, and then clamp the longitudinally cut diaphragm in the longitudinal arrangement. In a set of stretching assemblies, repeat the above steps to measure the longitudinal rebound rate; in addition, two sets of stretching assemblies arranged horizontally and vertically can be used to work together, and the four clamping units can be clamped in one piece at the same time. The four sides of the film are then heated, stretched and cooled. Observe the change of the length, width and area of the film before and after cooling, and obtain the comprehensive rebound rate of the film in straight line stretching, so as to better guide the stealth. Manufacture of appliances or orthodontic retainers.

Please refer to FIG. 2 and FIG. 5 , as an optimized embodiment of the present invention: the fixing assembly includes a second elastic piece 22 and a first elastic piece 15 respectively connected with the two upper clamping plates 3 , the second elastic piece 22 and the first elastic piece 15 An elastic piece 15 is provided with protrusions that engage with each other, and a plurality of engaging teeth 16 for fixing the diaphragm are fixedly installed on the inner surface of the upper clamping plate 3 . When in use, the end face of the diaphragm is placed between the two upper clamping plates 3, the two upper clamping plates 3 are pressed against each other to fix the diaphragm, and the protrusions on the second elastic sheet 22 and the first elastic sheet 15 are fastened to each other, so that the The distance between the two upper splints 3 is fixed, and the addition of the engaging teeth 16 is to increase the fixing effect of the upper splint 3 on the diaphragm, so that the fixation is more firm.

Please refer to FIG. 1 and FIG. 2 , as another optimized embodiment of the present invention: the heating mechanism includes a heating block 13 installed in the installation hole 7 at the center of the fixed plate 1 , and a support is rotatably installed on the fixed plate 1 Rod 8, another heating block 13 is connected to the support rod 8 through a connecting rod 9, the connecting rod 9 is slidably installed on the support rod 8, and a curved surface stretching mechanism is also installed on the support rod 8. When in use, power on the heating block 13 to preheat, and after reaching the required temperature, slide the connecting rod 9 on the support rod 8 so that the diaphragm located between the two heating blocks 13 is pressed by the two heating blocks 13, and the two diaphragms are pressed together. The sides are evenly heated.

Please refer to FIGS. 1-4 , as another optimized embodiment of the present invention: the curved surface stretching mechanism includes a support plate 10 fixedly mounted on the support rod 8 , and a limit slot 11 is defined on the support plate 10 . A limit component is arranged in the limit slot 11 , a mounting plate 18 is fixedly installed on the end surface of the limit component, and a curved plate 20 for testing the curved surface deformation of the diaphragm is installed on the mounting plate 18 . The mounting plate 18 is provided with a plurality of adjustment holes 19 , the two end surfaces of the curved plate 20 are fixedly installed with a plurality of buckle pieces 21 , and the two ends of the curved plate 20 are clamped in the two adjustment holes within 19. The limiting assembly includes a push rod 12 disposed in the limiting groove 11 , and two sides of the push rod 12 are fixedly mounted with a plurality of inclined limiting blocks 17 . When in use, the diaphragm is fixed in the two sets of clamping assemblies. After the two heating blocks 13 in the heating mechanism heat and soften the diaphragm, the support rod 8 is rotated at this time, so that the positions of the heating mechanism and the curved surface stretching mechanism are exchanged. , at this time, the curved surface stretching mechanism is above the diaphragm, and pushes the push rod 12 in the curved surface stretching mechanism, so that the limit block 17 on the push rod 12 is deformed and folded inwardly under the extrusion of the limit groove 11, so that the push rod 12 is pushed inward. The rod 12 passes through the limit slot 11. When the limit block 17 passes through the limit slot 11, the limit block 17 recovers under the action of its own elastic force, and is clamped on the support plate 10 to continuously push the push rod 12 forward, so that the push rod 12 moves forward. The curved plate 20 on the end surface of the rod 12 is in contact with the diaphragm, and the diaphragm begins to fit the curved plate 20 and undergoes curved surface deformation. When the push rod 12 advances a sufficient distance, the diaphragm is released from the clamping unit, and the film is marked at this time. The position of the bonding edge of the film and the curved plate 20. After the film is cooled, observe the edge position of the film and the curved board 20 again, and observe whether the edge position of the film and the curved board 20 is rebounded. And measure the rebound distance, divide the rebound distance by the initial length of the diaphragm, and calculate the rebound rate of the curved surface; Adjusting the number of holes 19 in between can change the curvature of the curved plate 20 and measure the resilience performance of the diaphragm under multiple curvatures, so that the measured resilience data is increased, the measurement range is wider, and the measurement results are more accurate.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and range of the equivalents of , are included in the present invention.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. A dental diaphragm elastic recovery test device, comprising a fixing plate (1), characterized in that, further comprising a stretching mechanism and a heating mechanism arranged on the fixing plate (1), the stretching mechanism comprising two groups of pulling stretching assembly, two sets of stretching assemblies are arranged perpendicular to each other; each set of stretching assemblies includes two clamping units installed on the fixing plate (1), one of which is slidably installed on the fixing plate (1), Another clamping unit is fixedly mounted on the installation short plate (2), the installation short plate (2) is connected with the fixing plate, and the clamping unit comprises a mounting seat (14) connected with the fixing plate (1), so The upper and lower end surfaces of the mounting seat (14) are hingedly mounted with upper splints (3), and the two upper splints (3) are connected by a fixing assembly; The heating mechanism comprises a heating block (13) installed in a mounting hole (7) at the center of the fixing plate (1), a support rod (8) is rotatably mounted on the fixing plate (1), and the support rod (8) ) is connected with another heating block (13) through a connecting rod (9), the connecting rod (9) is slidably installed on the support rod (8), and a curved surface stretching mechanism is also installed on the support rod (8). ; The curved surface stretching mechanism comprises a support plate (10) fixedly installed on the support rod (8), a limit groove (11) is formed on the support plate (10), and a limit groove (11) is provided in the limit groove (11). a positioning assembly, a mounting plate (18) is fixedly installed on the end surface of the limiting assembly, and a curved plate (20) for testing the curved surface deformation of the diaphragm is mounted on the mounting plate (18); The mounting plate (18) is provided with a plurality of adjustment holes (19), the two end surfaces of the curved plate (20) are fixedly installed with a plurality of snap-fit pieces (21), and the curved plate (20) The two ends of the clamp are clamped in the two adjustment holes (19); The limit assembly includes a push rod (12) disposed in the limit groove (11), and a plurality of inclined limit blocks (17) are fixedly installed on both sides of the push rod (12). 2 . The dental diaphragm elastic recovery test device according to claim 1 , wherein a long installation plate ( 4 ) is fixedly installed on the fixed plate ( 1 ), and a long installation plate ( 4 ) is installed on the long installation plate ( 4 ). A chute (5) is provided, a clamping unit is slidably installed in the chute (5), and a scale line (6) is provided on the edge of the installation long plate (4). 3 . The dental diaphragm elastic recovery test device according to claim 1 , wherein the fixing assembly comprises a second elastic sheet ( 22 ) and a first elastic sheet ( 15), the second elastic sheet (22) and the first elastic sheet (15) are provided with protrusions that engage with each other; the inner surface of the upper splint (3) is fixedly installed with a plurality of bites for fixing the diaphragm Teeth (16).

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