Thermal shock resistance experiment device for zirconia ceramic for dentistry

Abstract

The utility model discloses a zirconia ceramic thermal shock resistance experiment device for dentistry, which comprises a base, a placing box, a placing piece, a moving module, a constant temperature assembly and a control box, the placing box is arranged at the top end of the base, the placing piece is arranged in the placing box, the moving module is arranged in the base, the constant temperature assembly is arranged at the top end of the base, and the control box is arranged on the base. The control box is arranged at the top end of the base. By utilizing the design of the placing box, the placing piece, the moving module, the constant-temperature assembly and the control box, the placing piece is placed in the placing box, so that the placing box reciprocates between the high-temperature constant-temperature box and the low-temperature constant-temperature box under the action of the moving module, and therefore, the tooth sample transfer device has the advantage of automatically transferring tooth samples; the problems that in an experiment method, an experimenter needs to pay attention to the experiment process for a long time, tooth samples need to be taken out from a high-temperature oven and low-temperature ice water back and forth according to time nodes required by the standard, and time and labor are consumed are solved, and the experiment process is effectively simplified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of zirconia ceramic performance testing device for dentistry, in particular to zirconia ceramic thermal shock resistance experimental device for dentistry. BACKGROUND

[0002] Thermal shock resistance, also known as thermal shock resistance, commonly known as thermal stability or cold and hot resistance, refers to the performance of the material in resisting temperature changes without damage or damage. Because of the need for multiple sintering temperature rise and fall and porcelain enamel temperature rise and fall during tooth manufacturing, when the tooth is subjected to temperature changes, the material inside will be blocked due to shrinkage or expansion, resulting in thermal stress. When the thermal stress exceeds the material strength limit, cracking, damage, mechanical strength reduction and other phenomena will occur. The new cracks produced in the thermal shock of the tooth and the cracking, peeling and breaking caused by the expansion of the new cracks and the original cracks will seriously affect the mechanical properties and use of the tooth. Thermal shock resistance is one of the most important properties of zirconia ceramic for dentistry. In ISO 22112:2017, the thermal shock resistance test process of zirconia ceramic denture is proposed, that is, the tooth sample is repeatedly placed in high and low temperature environment.

[0003] The problem of the traditional experimental process is that during the experiment, the experimenter needs to pay attention to the experimental process for a long time, and needs to take out the tooth sample from the high temperature oven and the low temperature ice water according to the time node required by the standard, which is time-consuming and labor-intensive. UTILITY MODEL CONTENT

[0004] The utility model aims at providing zirconia ceramic thermal shock resistance experimental device for dentistry to solve the problems in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: zirconia ceramic thermal shock resistance experimental device for dentistry, comprising:

[0006] Base;

[0007] Placing box, the placing box is arranged at the top end of the base;

[0008] Placing piece, the placing piece is arranged in the inside of the placing box, and the placing piece is used for placing the tooth sample;

[0009] Moving module, the moving module is arranged in the inside of the base, and the moving module is used for moving the placing box;

[0010] Constant temperature assembly, the constant temperature assembly is arranged at the top end of the base, and the constant temperature assembly is used for heating the tooth sample;

[0011] Control box, the control box is arranged at the top end of the base, and the control box is used for controlling the moving module and the constant temperature assembly.

[0012] Preferably, the top end of the base is provided with a mounting groove, the bottom end of the moving module is fixedly connected with the bottom end of the inner wall of the mounting groove, and the moving end of the moving module is fixedly connected with the bottom end of the placing box.

[0013] Preferably, the inside of the placing box is provided with a placing assembly for placing the placing piece, and the placing assembly comprises a placing disc.

[0014] Preferably, the top end of the placing disc is fixedly connected with a limiting strip for limiting the movement of the placing piece, one side of the top end of the placing disc is fixedly connected with a first baffle, the other side of the top end of the placing disc is provided with a insertion slot, the other side of the top end of the placing disc is provided with a second baffle, the bottom end of the second baffle is fixedly connected with an insertion rod, and the insertion rod is inserted into the inside of the insertion slot.

[0015] Preferably, the placing piece comprises:

[0016] a placing column, the tooth sample is sleeved on the top of the placing column;

[0017] a mounting disc, the top end of the mounting disc is fixedly connected with the bottom end of the placing column, and the outer wall of the mounting disc is provided with a clamping groove for inserting the limiting strip.

[0018] Preferably, the thermostat assembly comprises a high-temperature thermostat and a low-temperature thermostat, and the bottom ends of the high-temperature thermostat and the low-temperature thermostat are fixedly connected with the top end of the base.

[0019] Preferably, the front face and the back face of the high-temperature thermostat are respectively provided with first moving holes for moving the placing box, the front face of the low-temperature thermostat is provided with a second moving hole for moving the placing box, and the inside of the high-temperature thermostat and the inside of the low-temperature thermostat are respectively provided with a first trigger switch and a second trigger switch.

[0020] The technical effects and advantages of the utility model are as follows:

[0021] The utility model discloses a design of placing box, placing piece, moving module, thermostat assembly and control box, the placing piece is placed in the inside of the placing box, the placing box reciprocates between the high-temperature thermostat and the low-temperature thermostat under the action of the moving module, so that the tooth sample has the advantage of automatic transfer, solves the problem that the experimenter needs to pay attention to the experiment process for a long time and needs to take out the tooth sample in the high-temperature oven and the low-temperature ice water according to the time node required by the standard, and effectively simplifies the experiment process. ACCURATE DRAWINGS

[0022] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model.

[0023] Figure 2 It is a three-dimensional structure schematic view of the base and the constant temperature assembly of the utility model.

[0024] Figure 3 It is a three-dimensional structure schematic view of the moving module and the placing box of the utility model.

[0025] Figure 4 It is a three-dimensional structure schematic view of the placing box and the placing piece of the utility model.

[0026] Figure 5 It is a three-dimensional structure schematic view of the placing assembly and the placing piece of the utility model.

[0027] Figure 6 It is a three-dimensional structure schematic view of the placing disc of the utility model.

[0028] Figure 7 It is a three-dimensional structure schematic view of the second baffle of the utility model.

[0029] Figure 8 It is a three-dimensional structure schematic view of the placing piece of the utility model.

[0030] In the figure: 1, base; 2, placing box; 3, moving module; 4, high-temperature constant temperature box; 5, low-temperature constant temperature box; 6, control box; 7, placing piece; 71, placing column; 72, mounting disc; 8, placing assembly; 81, placing disc; 82, pull handle; 83, limiting strip; 84, first baffle; 85, second baffle; 86, insertion rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] The utility model provides a dental zirconia ceramic thermal shock resistance experimental device as Figures 1-8 The utility model discloses a dental zirconia ceramic thermal shock resistance experimental device, which comprises:

[0033] Base 1;

[0034] Placing box 2 is arranged at the top end of base 1.

[0035] Placing piece 7 is arranged in the inside of placing box 2, and the placing piece 7 is used for placing a tooth sample.

[0036] Moving module 3 is arranged in the inside of base 1, and the moving module 3 is used for moving placing box 2.

[0037] A constant temperature assembly is arranged at the top end of the base 1, and is used for heating the tooth sample.

[0038] A control box 6 is arranged at the top end of the base 1, and is used for controlling the movement module 3 and the constant temperature assembly.

[0039] The top end of the base 1 is provided with a mounting groove, the bottom end of the movement module 3 is fixedly connected with the bottom end of the inner wall of the mounting groove, and the moving end of the movement module 3 is fixedly connected with the bottom end of the placing box 2.

[0040] Further, the movement module 3 is an existing linear movement module, the bottom end of the movement module 3 is fixedly connected with the bottom end of the inner wall of the mounting groove through a bolt, the outer wall of the placing box 2 is provided with a plurality of round holes for facilitating heat in and out, the bottom end of the placing box 2 is welded with a column, and the column is fixedly connected with the top end of the moving end of the placing box 2 through a bolt, the control box 6 adopts an existing type BSM-H20-L60-S1000 control box, is internally provided with a PLC, supports external I / O expansion, timer function and logic programming.

[0041] The inside of the placing box 2 is provided with a placing assembly 8 for placing the placing piece 7, and the placing assembly 8 comprises a placing disc 81, and the front surface of the placing disc 81 is fixedly connected with a pull handle 82 for hand holding.

[0042] The top end of the placing disc 81 is fixedly connected with a limiting strip 83 for limiting the movement of the placing piece 7, one side of the top end of the placing disc 81 is fixedly connected with a first baffle 84, the other side of the top end of the placing disc 81 is provided with a slot, the other side of the top end of the placing disc 81 is provided with a second baffle 85, the bottom end of the second baffle 85 is fixedly connected with a plug rod 86, and the plug rod 86 penetrates into the inside of the slot.

[0043] The placing piece 7 comprises:

[0044] A placing column 71, the tooth sample is sleeved at the top of the placing column 71;

[0045] A mounting disc 72, the top end of the mounting disc 72 is fixedly connected with the bottom end of the placing column 71, and the outer wall of the mounting disc 72 is provided with a clamping groove for penetrating the limiting strip 83.

[0046] Further, the top end of the placing disc 81 is provided with a plurality of placing pieces 7, the bottom end of the placing column 71 is inserted and fixed with the top end of the mounting disc 72, the vertical section of the mounting disc 72 is T-shaped, and the vertical section of the limiting strip 83 is T-shaped, and the size is matched with each other, the top end of the placing disc 81 is provided with a plurality of limiting strips 83, the bottom end of the plurality of limiting strips 83 is welded and fixed with the top end of the placing disc 81, the bottom end of the first baffle 84 is welded and fixed with the top end of the placing disc 81, the first baffle 84 is perpendicular to the direction of the limiting strip 83, the second baffle 85 is parallel to the first baffle 84, the pull handle 82 is welded and fixed at the contact position of the placing disc 81, the pull handle 82 and the first baffle 84 are arranged on the adjacent side of the placing disc 81, two insertion slots are symmetrically arranged, the insertion rod 86 is welded and fixed at the contact position of the second baffle 85, by inserting the insertion rod 86 into the insertion slot, the placing piece 7 mounted on the limiting strip 83 is located between the first baffle 84 and the second baffle 85, so as to avoid the falling of the placing piece 7 when the placing disc 81 is moved.

[0047] The constant temperature assembly comprises a high-temperature constant temperature box 4 and a low-temperature constant temperature box 5, and the bottom end of the high-temperature constant temperature box 4 and the low-temperature constant temperature box 5 is fixedly connected with the top end of the base 1.

[0048] The front surface and the back surface of the high-temperature constant temperature box 4 are respectively provided with first moving holes for moving the placing box 2, the front surface of the low-temperature constant temperature box 5 is provided with a second moving hole for moving the placing box 2, and the inside of the high-temperature constant temperature box 4 and the low-temperature constant temperature box 5 is respectively provided with a first trigger switch and a second trigger switch.

[0049] Further, the high-temperature constant temperature box 4 and the low-temperature constant temperature box 5 are existing constant temperature boxes, the size of the first moving hole and the second moving hole is 1.2 times of the size of the placing box 2, and a high-temperature-resistant rubber strip is arranged at the position of the first moving hole and the second moving hole to shield the first moving hole and the second moving hole, while not affecting the access of the placing box 2, the end of the high-temperature-resistant rubber strip is fixedly installed on the outer wall of the high-temperature constant temperature box 4 or the low-temperature constant temperature box 5 through a bolt, the distance between the high-temperature constant temperature box 4 and the low-temperature constant temperature box 5 is determined according to the moving speed of the placing box 2, when the placing box 2 moves out of the high-temperature constant temperature box 4 and enters the low-temperature constant temperature box 5, the time is 3s, therefore the distance between the opposite sides of the high-temperature constant temperature box 4 and the low-temperature constant temperature box 5 is the moving speed of the placing box 2 multiplied by 3s, the inside of the high-temperature constant temperature box 4 always keeps 100℃ constant temperature, the inside of the low-temperature constant temperature box 5 always keeps 1℃ constant temperature, the first trigger switch and the second trigger switch are both existing non-contact high-temperature-resistant proximity switches with model TNGYC-D-A8, when the placing box 2 moves to the position of the trigger switch, the trigger switch sends a signal to the control box 6 to detect the movement of the placing box 2.

[0050] By placing the placing piece 7 on the top of the placing assembly 8, then placing the placing assembly 8 in the inside of the placing box 2, and then starting the high-temperature constant-temperature box 4 and the low-temperature constant-temperature box 5 by controlling the control box 6, and then starting the moving module 3, the placing box 2 is moved to the inside of the high-temperature constant-temperature box 4, until the first trigger switch detects the placing box 2, and then transmits a signal to the control box 6, the control box 6 controls the moving module 3 to stop starting, and carries out 20 min countdown through the internal timing function, when the countdown is finished, the control box 6 controls the moving module 3 to start, and drives the placing box 2 to enter the inside of the low-temperature constant-temperature box 5, so that the second trigger switch detects the placing box 2, and then transmits a signal to the control box 6, the control box 6 carries out 30 s countdown, when the countdown is finished, the control box 6 controls the moving module 3 to drive the placing box 2 to move to the direction close to the high-temperature constant-temperature box 4, and then triggers the first trigger switch again, and carries out 15 min countdown, when the countdown is finished, the moving module 3 moves the placing box 2 out of the high-temperature constant-temperature box 4, and carries out natural cooling, the above moving process can be realized through the existing logic programming technology, and the zirconia ceramic thermal shock resistance experiment device has the advantages that the tooth sample can be automatically transferred, the problem that the experimenter needs to pay attention to the experiment process for a long time, and needs to take out the tooth sample in the high-temperature oven and the low-temperature ice water according to the time node required by the standard, and the time and labor are consumed is solved, and the experiment process is effectively simplified.

[0051] Finally, it should be noted that: the above only for preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A device for testing the thermal shock resistance of dental zirconia ceramic, characterized in that, The utility model relates to a dental sample placing device, including: The base (1); The placing box (2) is set up in the top of base (1); The placing piece (7) is set up inside the placing box (2), and the placing piece (7) is used to place the dental sample; The moving module (3) is set up inside the base (1), and the moving module (3) is used to move the placing box (2); The constant temperature subassembly is set up in the top of base (1), and the constant temperature subassembly is used for the heating of dental sample; The control box (6) is set up in the top of base (1), and the control box (6) is used for the control of moving module (3) and constant temperature subassembly.

2. The dental zirconia ceramic thermal shock resistance testing device according to claim 1, wherein The top of base (1) is provided with the mounting groove, the bottom of moving module (3) is fixedly connected with the bottom of mounting groove inner wall, and the moving end of moving module (3) is fixedly connected with the bottom of placing box (2).

3. The dental zirconia ceramic thermal shock resistance testing device according to claim 1, wherein The inside of placing box (2) is provided with the placing assembly (8) for placing placing piece (7), and the placing assembly (8) includes placing disc (81), and the front of placing disc (81) is fixedly connected with pull handle (82) for hand holding.

4. The dental zirconia ceramic thermal shock resistance testing device according to claim 3, wherein The top of placing disc (81) is fixedly connected with limiting strip (83) for limiting the movement of placing piece (7), one side of the top of placing disc (81) is fixedly connected with first baffle (84), the other side of the top of placing disc (81) is provided with the insertion slot, the other side of the top of placing disc (81) is provided with second baffle (85), the bottom of second baffle (85) is fixedly connected with insertion rod (86), and insertion rod (86) is inserted in the inside of insertion slot.

5. The dental zirconia ceramic thermal shock resistance testing device according to claim 4, wherein The placing piece (7) includes: The dental sample is sleeved on the top of placing column (71); The top of mounting disc (72) is fixedly connected with the bottom of placing column (71), and the outer wall of mounting disc (72) is provided with clamping groove for inserting limiting strip (83).

6. The dental zirconia ceramic thermal shock resistance testing device according to claim 1, wherein The constant temperature subassembly includes high-temperature constant-temperature box (4) and low-temperature constant-temperature box (5), and the bottom of high-temperature constant-temperature box (4) and low-temperature constant-temperature box (5) is fixedly connected with the top of base (1).

7. The dental zirconia ceramic thermal shock resistance testing device according to claim 6, wherein The front and back of high-temperature constant-temperature box (4) are provided with first moving hole for the movement of placing box (2) respectively, the front of low-temperature constant-temperature box (5) is provided with second moving hole for the movement of placing box (2), and the inside of high-temperature constant-temperature box (4) and low-temperature constant-temperature box (5) is provided with first trigger switch and second trigger switch respectively.

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