Tester for detecting hardness of high-temperature and low-temperature rubber
By designing temperature-controlled boxes and heating components in rubber hardness meters, the problem of measuring in high and low temperature environments is solved, and faster and more accurate rubber hardness detection is achieved.
Patent Information
- Application Number
- CN202420796248.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-04-17
AI Technical Summary
Existing rubber hardness meters are difficult to accurately measure in high and low temperature environments, and the status and operating requirements of the hardness meter equipment are inconvenient for temperature changes.
A rubber hardness meter including a temperature-controlled box and a detection body is designed. By setting heating components and sealing components in the temperature-controlled box, the circular ring heater and installation groove are used to achieve temperature control and insulation to ensure the rubber and detection body. In the same temperature field.
It realizes reliable detection of rubber hardness in high and low temperature environments, shortens detection time, and improves detection efficiency and accuracy.
Smart Images
Figure CN222259043U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of rubber hardness testers, and in particular to a rubber hardness tester for detecting high and low temperature. Background Art
[0002] A rubber hardness tester is an instrument used to test items such as vulcanized rubber or plastic products. It generally includes a test dial, an anti-slip head, a presser foot and a presser needle. The presser needle of the rubber hardness tester can quickly and effectively test the hardness of the item.
[0003] Rubber is a polymer material, and its performance parameters are greatly affected by the ambient temperature. Therefore, it is very important to test the performance parameters of the product under certain ambient temperature conditions. However, the rubber hardness tester is used in accordance with the standard laboratory environment conditions (23±2°C). Due to the equipment status and operating requirements of the hardness tester, it is not convenient to measure the rubber hardness in high and low temperature environments. Utility Model Content
[0004] In order to facilitate the measurement of rubber hardness in high and low temperature environments, the purpose of this application is to provide a high and low temperature rubber hardness tester.
[0005] The high and low temperature rubber hardness tester provided in this application adopts the following technical solution:
[0006] A rubber hardness tester for detecting high and low temperatures comprises a detection body and a temperature control box, wherein the detection body is arranged in the temperature control box, an opening is provided on one side of the temperature control box, a blocking component for blocking the opening is provided on the temperature control box, and a heating component is provided on the temperature control box.
[0007] Optionally, the heating assembly includes a plurality of heaters disposed on the temperature control box, and one heater is correspondingly disposed on the side wall of each temperature control box.
[0008] Optionally, the heater is in a ring shape.
[0009] Optionally, a mounting groove is provided in the temperature control box, and a distance between the mounting groove and an inner wall in a horizontal direction is greater than a diameter of the heater.
[0010] Optionally, the blocking assembly includes a blocking plate hinged to the inner wall of the temperature control box on one side of the opening, and the circumferential side wall of the blocking plate abuts against the inner wall of the temperature control box on one side of the opening.
[0011] Optionally, a sealing strip is provided on the circumferential side wall of the blocking plate.
[0012] Optionally, a fixing plate is rotatably provided on a side of the temperature control box close to the blocking plate, and the fixing plate abuts against a side wall of the fixing plate on a side facing the temperature control box.
[0013] Optionally, a heat-insulating plate is provided inside the blocking plate.
[0014] In summary, the present application includes at least one of the following beneficial technical effects:
[0015] The present application sets a temperature control box so that the rubber to be tested and the test body in the temperature control box are in the same temperature field, and changes the temperature in the temperature control box by adjusting the heating component, so that the test body can be used to test the hardness of the rubber in high and low temperature fields, providing more reliable data for the test.
[0016] The present application provides a ring-shaped heater so that the heater can contact the heated object, i.e., the temperature control box body, over a larger range, thereby more effectively transferring heat into the temperature control box. At the same time, the ring-shaped heater can also reduce the loss of heat during the transfer process, so that the heat can be more fully utilized;
[0017] The present application sets up an installation groove to form a larger heat dissipation space between the heater and the temperature control box, and utilizes the composite heat conduction method of air + box to accelerate the temperature rise rate inside the temperature control box, shorten the detection time, and improve the efficiency of rubber hardness detection in high and low temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of a rubber hardness tester for detecting high and low temperature in an embodiment of the present application;
[0019] Figure 2 It is a cross-sectional schematic diagram used to show the heating component on the top of the temperature control box in the embodiment of the present application;
[0020] Figure 3 It is a cross-sectional schematic diagram used to show the side heating component of the temperature control box in the embodiment of the present application;
[0021] Figure 4 yes Figure 1 Enlarged view of part A.
[0022] Description of reference numerals:
[0023] 1. Test body; 11. Base; 12. Tray; 13. Column; 14. Hardness gauge; 15. Indenter;
[0024] 2. Temperature control box; 21. Detection space; 22. Opening; 221. Sealing component; 2211. Blocking plate; 2212. Sealing strip; 2213. Insulation board; 2214. Groove; 222. Heating component; 2221. Heater; 23. Mounting groove; 24. Thermometer; 25. Fixing plate. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present utility model.
[0026] The following is combined with Figure 1-4 The present application is further described in detail. The present application embodiment discloses a rubber hardness tester for detecting high and low temperature.
[0027] Reference Figure 1 A high and low temperature rubber hardness tester comprises a detection body 1 and a temperature control box 2. A detection space 21 is provided in the temperature control box 2. The detection body 1 is fixedly arranged in the detection space 21. An opening 22 is provided on one side of the temperature control box 2. A blocking component 221 is provided on one side of the opening 22 of the temperature control box 2. A heating component 222 is provided on the temperature control box 2.
[0028] When in use, the rubber to be tested is placed in the testing space 21 in the temperature control box 2 through the opening 22, and then the temperature of the temperature control box 2 is changed by the heating component 222, so that the temperature in the temperature control box 2 can be changed to high or low, so as to detect the hardness of the rubber at different temperatures. Then, the testing body 1 is used to test the hardness of the rubber at different temperatures, so as to add more reliable data to the test and improve the accuracy of the test.
[0029] Furthermore, the testing body 1 includes a base 11, a tray 12, a column 13, a hardness meter 14 and a pressure head 15. The model and specification of the hardness meter are not specifically limited in the embodiment of the present application. During the test, the rubber to be tested is placed on the tray 12, the pressure head 15 is used to press the rubber, and the hardness value of the rubber is obtained by reading the data on the hardness meter 14.
[0030] Further, refer to Figure 2 The heating assembly 222 includes a heater 2221 disposed in the temperature control box 2, and each closed side of the temperature control box 2 is provided with a corresponding heater 2221. The heater 2221 can be an electric heater 2221, and the model and specification of the heater 2221 are not specifically limited in the embodiment of the present application.
[0031] By controlling the heating time of the heater 2221 , the temperature in the temperature control box 2 is adjusted so that the temperature in the temperature control box 2 changes with the heating time of the heater 2221 , thereby facilitating the detection of the hardness of the rubber at different temperatures.
[0032] Further, refer to Figure 2 and Figure 3Each closed side of the temperature control box 2 is provided with a corresponding heater 2221, and the specifications and models of each heater 2221 are the same.
[0033] By setting a plurality of heaters 2221 and starting the plurality of heaters 2221 at the same time, it is helpful to increase the heating speed in the temperature control box 2 and save the detection time. At the same time, when the plurality of heaters 2221 are started, it is helpful to heat each side of the temperature control box 2 at the same time, so that the temperature distribution in the temperature control box 2 is more uniform, and the rubber hardness detection accuracy is improved.
[0034] Further, refer to Figure 2 and Figure 3 , the heater 2221 is in a ring shape.
[0035] The annular heater 2221 has a larger contact area with the temperature control box 2, which helps to improve the heat dissipation effect of the heater 2221, accelerate the heating speed of the temperature control box 2, and achieve rapid heating.
[0036] Further, refer to Figure 2 and Figure 3 The temperature control box 2 is provided with a mounting groove 23 corresponding to the heater 2221, and the heater 2221 is fixedly installed in the mounting groove 23. The distance between the groove walls of the mounting groove 23 in the horizontal direction is greater than the diameter of the heater 2221, so that a heat dissipation space is formed between the outer wall of the heater 2221 and the groove wall of the mounting groove 23, which is conducive to heat diffusion, shortens the heating time of the temperature control box 2, and improves the heating efficiency.
[0037] Further, refer to Figure 2 The temperature control box 2 is provided with a thermometer 24 , and the thermometer 24 is provided on the outer wall of the temperature control box 2 , so as to observe the temperature of the temperature control box 2 .
[0038] Further, refer to Figure 1 and Figure 2 The sealing assembly 221 includes a blocking plate 2211 hinged on the temperature control box 2, the hinge axis of the blocking plate 2211 extends in the vertical direction, the blocking plate 2211 is hingedly arranged on the inner wall of the temperature control box 2 on the side of the opening 22, and the circumferential side wall of the blocking plate 2211 abuts against the inner wall of the temperature control box 2 on the side of the opening 22.
[0039] When testing the hardness of rubber, the blocking plate 2211 is rotated toward the side away from the temperature control box 2 to expose the opening 22, and then the rubber to be tested is placed in the temperature control box 2, and the rubber hardness is tested using the testing body 1. When it is necessary to test the hardness of rubber at different temperatures, the blocking plate 2211 is rotated into the opening 22, and after the opening 22 is blocked, the temperature control box 2 is heated by the heater 2221. After the blocking plate 2211 blocks the opening 22, the heat dissipation along the opening 22 can be reduced, which can not only increase the thermal insulation, but also avoid energy waste caused by too long heating time.
[0040] Further, refer to Figure 1 and Figure 4 A sealing strip 2212 is provided on the circumferential side wall of the blocking plate 2211. The sealing strip 2212 may be made of rubber, but the material of the sealing strip 2212 is not specifically limited in the embodiment of the present application.
[0041] By providing the sealing strip 2212, when the opening 22 is blocked by the blocking plate 2211, the sealing performance is improved and the heat loss is reduced.
[0042] Further, refer to Figure 1 A heat-insulating plate 2213 is provided inside the blocking plate 2211, and the material of the heat-insulating plate 2213 is not specifically limited in the embodiment of the present application.
[0043] By providing the heat preservation plate 2213, the heat preservation of the blocking plate 2211 is further improved. After the heater 2221 is turned off, the speed at which the temperature of the temperature control box 2 drops is slowed down, ensuring more accurate rubber hardness detection.
[0044] Further, refer to Figure 1 A groove 2214 is provided in the blocking plate 2211. The groove 2214 is used to place the heat preservation board 2213. One side of the groove 2214 passes through the blocking plate 2211. When in use, the heat preservation board 2213 is placed along the notch of the groove 2214. The heat preservation board 2213 helps to reduce the heat dissipation along the blocking plate 2211 when testing the hardness of the rubber. When the heat preservation performance of the heat preservation board 2213 is reduced and needs to be replaced, the heat preservation board 2213 is taken out along the notch of the groove 2214, and then the replacement heat preservation board 2213 is placed, which helps to replace the heat preservation board 2213.
[0045] Further, refer to Figure 1 and Figure 2 A fixing plate 25 is rotatably provided on the outer wall of the temperature control box 2 on one side of the opening 22 , and the rotation axis of the fixing plate 25 is perpendicular to the hinge axis of the blocking plate 2211 .
[0046] After the blocking plate 2211 is rotated into the opening 22 and the opening 22 is blocked, the fixing plate 25 is rotated so that the fixing plate 25 abuts against the side wall of the blocking plate 2211 facing the temperature control box 2 to limit the rotation of the blocking plate 2211. On the one hand, it helps to fix the blocking plate 2211, and on the other hand, it can avoid burns when manually pressing the blocking plate 2211.
[0047] The working principle of a high and low temperature rubber hardness tester provided in the embodiment of the present application is as follows: before testing, first rotate the fixed plate 25 in a direction away from the temperature control box 2 to expose the opening 22, then put the rubber to be tested into the temperature control box 2, and use the detection body 1 to detect the rubber hardness at room temperature. Then, rotate the fixed plate 25 into the opening 22 to seal the opening 22, so that the sealing strip 2212 is pressed against the inner wall of the temperature control box 2. Then rotate the fixed plate 25 so that the fixed plate 25 is in contact with the side wall of the blocking plate 2211 to limit the rotation of the blocking plate 2211 and seal the temperature control box 2. After the temperature control box 2 is sealed, start the heater 2221 to gradually heat up the temperature control box 2.
[0048] When the temperature control box 2 is heated up, the temperature in the temperature control box 2 is changed by starting or shutting down the heater 2221. Then the fixing plate 25 is rotated to release the restriction of the fixing plate 25 on the blocking plate 2211, and the blocking plate 2211 is rotated out along the opening 22, and the hardness of the rubber at the temperature is detected by the detection body 1, which effectively improves the situation that it is inconvenient to measure the hardness of rubber in high and low temperature environments due to the equipment status and operation requirements of the hardness tester, and provides more accurate detection data for rubber hardness detection.
[0049] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0050] In the present application, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this application according to the specific circumstances.
[0051] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the present application, and all these changes or substitutions should fall within the protection scope of the claims attached to the present application.
Claims
1. A rubber hardness tester for detecting high and low temperature, characterized in that: The hardness tester comprises a detection body (1) and a temperature control box (2), the detection body (1) being arranged in the temperature control box (2), an opening (22) being provided on one side of the temperature control box (2), a blocking component (221) being provided on the temperature control box (2) for blocking the opening (22), and a heating component (222) being provided on the temperature control box (2).
2. The high and low temperature rubber hardness tester according to claim 1, characterized in that: The heating component (222) comprises a plurality of heaters (2221) arranged on the temperature control box (2), with one heater (2221) being correspondingly arranged on the side wall of each temperature control box (2).
3. The high and low temperature rubber hardness tester according to claim 2, characterized in that: The heater (2221) is in the shape of a ring.
4. The high and low temperature rubber hardness tester according to claim 2, characterized in that: The temperature control box (2) is provided with a mounting groove (23), and the distance between the mounting groove (23) and the inner wall in the horizontal direction is greater than the diameter of the heater (2221).
5. The high and low temperature rubber hardness tester according to claim 1, characterized in that: The blocking component (221) comprises a blocking plate (2211) hingedly connected to the inner wall of the temperature control box (2) on one side where the opening (22) is provided, and the circumferential side wall of the blocking plate (2211) abuts against the inner wall of the temperature control box (2) on one side where the opening (22) is provided.
6. The high and low temperature rubber hardness tester according to claim 5, characterized in that: A sealing strip (2212) is provided on the circumferential side wall of the blocking plate (2211).
7. The high and low temperature rubber hardness tester according to claim 5, characterized in that: A fixing plate (25) is rotatably provided on a side of the temperature control box (2) close to the blocking plate (2211), and a side of the fixing plate (25) facing the temperature control box (2) abuts against a side wall of the fixing plate (25).
8. The high and low temperature rubber hardness tester according to claim 5, characterized in that: A heat-insulating plate (2213) is provided inside the blocking plate (2211).