Improved device of carbon black content tester

Abstract

The utility model provides an improved device for a carbon black content tester, which belongs to the technical field of carbon black content testers, and comprises a main body, a sleeve device, a sample boat and a limiting device, the sleeve device comprises an outer sleeve and an inner sleeve, the outer sleeve is fixedly arranged in the main body, the inner sleeve is fixedly arranged in the main body, and the outer sleeve is fixedly arranged in the main body. The inner-layer sleeve is movably arranged in the outer-layer sleeve and can move in the axial direction of the outer-layer sleeve, the sample boat is placed in the inner-layer sleeve and is used for bearing a sample to be detected, and the inner-layer sleeve and the outer-layer sleeve are connected with each other through the limiting device. According to the utility model, through the arrangement of the limiting device, the defect that the position of the sample boat is not fixed is overcome, and the position stability of the sample boat is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon black content testers, and in particular relates to an improved device for carbon black content testers. Background Art

[0002] The carbon black content tester is a professional instrument specifically used to determine the carbon black content in materials. Carbon black is an important filler and modifier widely used in rubber products, plastics, inks, coatings and other fields. The main function of carbon black is to enhance the mechanical properties of the material, such as hardness, wear resistance and tear resistance, and it also has certain coloring and UV protection effects. Therefore, the carbon black content directly affects the quality of the final product. In industrial production and quality control, accurate determination of carbon black content is crucial to ensuring product quality. Carbon black content testing usually uses methods such as thermogravimetric analysis (TGA) or thermogravimetric analysis-mass spectrometry (TG-MS). The basic principle of these methods is to heat the sample to decompose carbon black and other organic components, and then calculate the carbon black content by measuring the weight loss.

[0003] While existing carbon black content testers have met the needs of industrial production to a certain extent, they still present some issues in practical use, particularly with the positioning of the sample boat. The sample boat is a critical component for carrying the sample to be tested, and its positional stability during the test directly impacts the accuracy and consistency of the test results. In traditional carbon black content testers, the sample boat is typically placed in an open space without effective restraints. This means that the sample boat may shift during the test due to slight vibrations or nitrogen flow, resulting in inconsistent areas of the sample exposed to the nitrogen blanket, which in turn affects the test results. Nitrogen, as an inert gas, protects the sample from oxygen and other impurities in the air during the test. However, when the sample boat is unstable, the nitrogen cannot evenly cover the sample, potentially exposing parts of the sample to air, affecting the accuracy and repeatability of the test results. Traditional testers require precise manual placement of the sample boat during operation, which not only increases operational complexity but also makes it prone to errors due to human error. Furthermore, the frequent movement of the sample boat increases maintenance costs and equipment failure rates. Utility Model Content

[0004] In view of this, the utility model provides an improved device for a carbon black content tester, which solves the problem of an unfixed position of a sample boat by providing a limiting device, thereby improving the position stability of the sample boat.

[0005] The utility model is achieved in this way:

[0006] The utility model provides an improved device for a carbon black content tester, which includes a main body, a sleeve device, a sample boat and a limiting device. The sleeve device includes an outer sleeve and an inner sleeve. The outer sleeve is fixedly arranged inside the main body, and the inner sleeve is movably arranged in the outer sleeve and can move along the axial direction of the outer sleeve. The sample boat is placed in the inner sleeve and is used to carry a sample to be tested. The inner sleeve and the outer sleeve are connected to each other through the limiting device, and the limiting device is used to limit the moving range of the inner sleeve.

[0007] The technical effects of an improved device for a carbon black content tester provided by the utility model are as follows: by adopting a double-layer sleeve structure, the outer sleeve is fixed, while the inner sleeve can be adjusted according to the size of the sample boat, ensuring that the position of the sample boat is fixed during the test, thereby improving the uniformity of nitrogen protection and reducing the difference in detection data caused by changes in the position of the sample boat.

[0008] On the basis of the above technical solution, the improved device of a carbon black content tester of the utility model can also be improved as follows:

[0009] Wherein, the outer sleeve and the main body are fixedly connected via a fixing device for fixing the outer sleeve in the main body.

[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the outer sleeve is connected to the tester body through a fixing device, which ensures the stability of the outer sleeve and avoids the displacement of the outer sleeve due to vibration and other reasons during the test, which affects the stability and detection accuracy of the nitrogen flow channel.

[0011] Furthermore, the limiter is positioned between the inner wall of the outer sleeve and the outer wall of the inner sleeve to limit the axial movement of the inner sleeve. The length of the outer sleeve matches the length of the tester body, ensuring that both ends can be tightly connected to the end caps of the body. The inner sleeve is slightly shorter than the outer sleeve. The size of the sample boat matches the inner sleeve.

[0012] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the limiting mechanism limits the movement range of the inner sleeve, preventing the inner sleeve from deviating from the set position due to external interference during the test process, thereby ensuring the stability of the sample boat and improving the reliability of the test results.

[0013] Furthermore, the inner sleeve is provided with a guide device, and the guide device is used to assist the sample boat to enter and be positioned in the inner sleeve.

[0014] Furthermore, the guide device is specifically a guide groove arranged inside the inner sleeve.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the guide device helps the sample boat to accurately enter the inner sleeve, reduces the error in the placement of the sample boat, and improves the convenience and accuracy of the test operation.

[0016] Furthermore, the limiting device is specifically a limiting ring, which is installed on the inner wall of the outer sleeve. The outer diameter of the inner sleeve is slightly smaller than the inner diameter of the limiting ring, and one or more limiting rings are provided.

[0017] The limiting ring is fixed by bonding or welding.

[0018] Furthermore, the limiting device is specifically a limiting block piece, and the limiting block piece is specifically one or more blocks installed on the inner wall of the outer sleeve, and the limiting block piece is perpendicular to the axis of the sleeve device.

[0019] The stopper is fixed by bonding or welding. The design of the stop ring or stopper effectively controls the movement range of the inner sleeve, preventing the position change of the sample boat from affecting the test results. At the same time, it simplifies the device structure and facilitates maintenance and adjustment.

[0020] Furthermore, the fixing device is specifically a fixing method of welding or bolt connection.

[0021] Furthermore, the main body is provided with an air inlet and an air outlet, which are used to introduce nitrogen and discharge waste gas respectively. A gas distributor is provided between the air inlet and the outer sleeve, and the gas distributor includes a plurality of equally distributed through holes or slits.

[0022] The gas distributor, which can be a porous plate or a device with multiple narrow slits, is installed at one end of the outer casing or near the gas inlet. The gas distributor evenly distributes the incoming nitrogen gas within the tester, ensuring that it uniformly surrounds the sample boat, thereby improving the consistency and accuracy of test results. The design of the gas inlet and exhaust ports ensures the efficient introduction of nitrogen and the timely discharge of exhaust gases, maintaining a clean and safe testing environment.

[0023] The multiple small holes or slits on the gas distributor allow the nitrogen to be evenly dispersed throughout the test area, further enhancing the nitrogen protection effect.

[0024] Furthermore, a nitrogen flow channel is formed between the outer sleeve and the inner sleeve, and the cross-section of the nitrogen flow channel is circular or elliptical.

[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the nitrogen flow channel formed between the outer sleeve and the inner sleeve ensures the stable flow of nitrogen, enhances the nitrogen protection effect, and reduces the influence of external factors on the test results.

[0026] Compared with the prior art, the improved device for carbon black content tester provided by the present invention has the following beneficial effects:

[0027] Improve the position stability of the sample boat:

[0028] By adding a stopper inside the glass tube, the present invention ensures that the sample boat remains in the predetermined position during the test. The stopper design makes the sample boat less susceptible to displacement due to external interference, thus ensuring that the sample boat maintains a stable position during the test and reducing the discrepancy in test data caused by position changes.

[0029] Enhanced nitrogen protection effect:

[0030] The double-layer casing design creates a stable nitrogen flow path between the outer and inner casings. The inner casing can be adjusted according to the size of the sample boat, allowing nitrogen to cover the sample boat more evenly, thereby improving the nitrogen protection effect and ensuring the purity of the sample during the test.

[0031] Simplify the operation process:

[0032] The combined use of the guide device and the limit device makes the placement of the sample boat simpler and faster, reducing the errors caused by manual operation. In addition, the adjustability of the inner sleeve allows the same tester to adapt to sample boats of different sizes, improving the versatility and flexibility of the equipment.

[0033] Improve testing efficiency:

[0034] Because the sample boat is fixed in position, no additional time is required to calibrate the position of the sample boat before each test, significantly reducing test preparation time and improving test efficiency. Furthermore, the stable sample boat position also helps speed up the establishment of nitrogen protection, further increasing test speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 A perspective view of an improved device for a carbon black content tester;

[0037] Figure 2 This is an example diagram of an improved device for a carbon black content tester;

[0038] Figure 3 This is a cross-sectional view of a limiting ring of an improved device for a carbon black content tester;

[0039] Figure 4 This is a cross-sectional view of a limit stopper for an improved device for a carbon black content tester;

[0040] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0041] 10. Main body; 20. Casing device; 21. Outer casing; 22. Inner casing; 30. Sample boat; 40. Limiting device. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0043] like Figure 1 、 Figure 2 、 Figure 3 As shown, it is a first embodiment of an improved device for a carbon black content tester provided by the utility model. In this embodiment, it includes a main body 10, a sleeve device 20, a sample boat 30 and a limiting device 40. The sleeve device 20 includes an outer sleeve 21 and an inner sleeve 22. The outer sleeve 21 is fixedly arranged inside the main body 10, and the inner sleeve 22 is movably arranged in the outer sleeve 21 and can move along the axial direction of the outer sleeve 21. The sample boat 30 is placed in the inner sleeve 22 for carrying the sample to be tested. The inner sleeve 22 and the outer sleeve 21 are connected to each other through the limiting device 40. The limiting device 40 is used to limit the moving range of the inner sleeve 22.

[0044] The outer tube is located in the center of the tester body, usually in the middle of the body, to facilitate the movement of the inner tube and the flow of nitrogen. The ends of the outer tube can be connected to the end caps of the body, ensuring that nitrogen can enter from one end and exit through the other end.

[0045] Preparation stage:

[0046] Place the tester on a stable workbench. Confirm that the nitrogen supply is normal and check whether the air inlet and exhaust ports are unobstructed.

[0047] Sample boat positioning:

[0048] Adjust the position of the inner sleeve according to the size of the sample boat to ensure that the sample boat can be smoothly placed in the inner sleeve.

[0049] Use the guides to accurately position the sample boat within the inner sleeve.

[0050] Start the test:

[0051] Turn on the nitrogen supply and introduce nitrogen evenly through the gas distributor.

[0052] Start the temperature control system and adjust it to the required test temperature. The temperature control system includes heating elements and cooling elements.

[0053] Testing process monitoring:

[0054] Monitor nitrogen flow and test temperature to ensure stable test conditions.

[0055] Observe whether the position of the sample boat remains unchanged. If there is any deviation, adjust the limit device to correct it.

[0056] End of test:

[0057] Turn off the nitrogen supply and deactivate the heating and cooling elements.

[0058] Remove the sample boat and record the test results.

[0059] In the above technical solution, the outer sleeve 21 and the main body 10 are fixedly connected via a fixing device to fix the outer sleeve 21 in the main body 10 .

[0060] Furthermore, in the above technical solution, the limiting device 40 is provided between the inner wall of the outer sleeve 21 and the outer wall of the inner sleeve 22 to limit the axial movement range of the inner sleeve 22 .

[0061] Furthermore, in the above technical solution, the inner sleeve 22 is provided with a guide device, and the guide device is used to assist the sample boat 30 to enter and be positioned in the inner sleeve 22 .

[0062] Furthermore, in the above technical solution, the guide device is specifically a guide groove arranged inside the inner sleeve 22.

[0063] Furthermore, in the above technical solution, the limiting device 40 is specifically a limiting ring, which is installed on the inner wall of the outer sleeve 21. The outer diameter of the inner sleeve 22 is slightly smaller than the inner diameter of the limiting ring, and one or more limiting rings are provided.

[0064] Furthermore, in the above technical solution, the fixing device is specifically a fixing method of welding or bolt connection.

[0065] Furthermore, in the above technical solution, the main body 10 is provided with an air inlet and an exhaust port, which are used to introduce nitrogen and discharge waste gas respectively. A gas distributor is provided between the air inlet and the outer sleeve 21, and the gas distributor includes a plurality of equally distributed through holes or slits.

[0066] Furthermore, in the above technical solution, a nitrogen flow channel is formed between the outer sleeve 21 and the inner sleeve 22 , and the cross-sectional shape of the nitrogen flow channel is circular or elliptical.

[0067] Heating element

[0068] Definition: A heating element is a device used to raise the temperature inside a tester. It can be an electric heating wire, a heating plate, a heating rod, an infrared heating lamp, or any other device that generates and transfers heat to the test area.

[0069] Specific form:

[0070] Heating Wire: A common heating element that generates heat by passing an electric current through a resistance wire. The heating wire can be wrapped around the outer wall of the outer or inner casing, or it can be integrated into the inner wall of the tester body.

[0071] Heating plate: A heating plate is a flat heating element that can be mounted on the bottom or side wall of the tester body to transfer heat to the test area by radiation or conduction.

[0072] Heating rod: A heating rod is a cylindrical heating element that can be inserted into the tester to directly heat the nitrogen or air surrounding the test sample.

[0073] Cooling element

[0074] Definition: A cooling element is a device used to reduce the internal temperature of a tester. It can be a fan, cooling fins, a coolant circulation system, or any other device that absorbs heat and reduces the temperature.

[0075] Specific form:

[0076] Fan: Removes heat by forced air flow. It can be installed on the top or side of the tester body to promote the dissipation of internal heat.

[0077] Cooling plate: absorbs heat through the electrothermal effect and can be installed on the inner wall of the tester body or the outer wall of the outer casing to directly absorb heat and reduce the temperature of the test area.

[0078] Coolant circulation system: It removes heat by circulating coolant. It can be installed outside the tester body and connected to the inside of the tester through pipes. The coolant absorbs heat through the heat exchanger and is pumped back to the cooling device for cooling.

[0079] like Figure 1 、 Figure 2 、 Figure 4As shown, it is a second embodiment of an improved device for a carbon black content tester provided by the utility model. In this embodiment, it includes a main body 10, a sleeve device 20, a sample boat 30 and a limiting device 40. The sleeve device 20 includes an outer sleeve 21 and an inner sleeve 22. The outer sleeve 21 is fixedly arranged inside the main body 10, and the inner sleeve 22 is movably arranged in the outer sleeve 21 and can move along the axial direction of the outer sleeve 21. The sample boat 30 is placed in the inner sleeve 22 for carrying the sample to be tested. The inner sleeve 22 and the outer sleeve 21 are connected to each other through the limiting device 40. The limiting device 40 is used to limit the moving range of the inner sleeve 22.

[0080] In the above technical solution, the outer sleeve 21 and the main body 10 are fixedly connected via a fixing device to fix the outer sleeve 21 in the main body 10 .

[0081] Furthermore, in the above technical solution, the limiting device 40 is provided between the inner wall of the outer sleeve 21 and the outer wall of the inner sleeve 22 to limit the axial movement range of the inner sleeve 22 .

[0082] Furthermore, in the above technical solution, the inner sleeve 22 is provided with a guide device, and the guide device is used to assist the sample boat 30 to enter and be positioned in the inner sleeve 22 .

[0083] Furthermore, in the above technical solution, the guide device is specifically a guide groove arranged inside the inner sleeve 22.

[0084] Furthermore, in the above technical solution, the limiting device 40 is specifically a limiting baffle, which is specifically one or more baffles installed on the inner wall of the outer sleeve 21 , and the limiting baffle is perpendicular to the axis of the sleeve device 20 .

[0085] Furthermore, in the above technical solution, the fixing device is specifically a fixing method of welding or bolt connection.

[0086] Furthermore, in the above technical solution, the main body 10 is provided with an air inlet and an exhaust port, which are used to introduce nitrogen and discharge waste gas respectively. A gas distributor is provided between the air inlet and the outer sleeve 21, and the gas distributor includes a plurality of equally distributed through holes or slits.

[0087] Furthermore, in the above technical solution, a nitrogen flow channel is formed between the outer sleeve 21 and the inner sleeve 22 , and the cross-sectional shape of the nitrogen flow channel is circular or elliptical.

[0088] Specifically, the principle of the present utility model is:

[0089] Technical principle of the limit device:

[0090] The limiting device in this utility model mainly includes two forms: a limiting ring or a limiting block. Their working principles are as follows:

[0091] Limiting ring:

[0092] The limit ring is an annular structure installed on the inner wall of the outer casing. The outer diameter of the inner casing is slightly smaller than the inner diameter of the limit ring. The limit ring can limit the movement range of the inner casing, so that it can only move axially within a certain range.

[0093] When the inner sleeve moves outward beyond a predetermined distance, the limit ring will prevent it from moving further, thus ensuring that the sample boat is always in the optimal position. One or more limit rings can be set to adjust the position of the inner sleeve as needed;

[0094] Limit block:

[0095] The stopper is one or more stops installed on the inner wall of the outer casing, perpendicular to the casing axis. The stopper can prevent the inner casing from excessive movement and deviating from the set position;

[0096] The number and position of the limit blocks can be adjusted according to actual needs to achieve the purpose of accurately controlling the position of the inner casing;

[0097] Technical principle of the guide device:

[0098] The guide device is designed to help the sample boat accurately enter the inner sleeve and maintain its position stable. The specific form of the guide device can be a guide groove or a guide hole. Its working principle is as follows:

[0099] Guide trough:

[0100] The guide groove can be designed in a straight or curved shape and is located on the inner wall of the inner sleeve. The edge of the sample boat can slide into the inner sleeve along the guide groove. The width of the guide groove is slightly larger than the thickness of the sample boat to ensure smooth entry.

[0101] The guide groove design can also help the sample boat remain stable during testing and reduce displacement caused by nitrogen flow;

[0102] Technical principle of nitrogen flow channel:

[0103] The double-layer casing structure design forms a stable nitrogen flow channel between the outer casing and the inner casing. Its working principle is as follows:

[0104] Nitrogen introduction:

[0105] Nitrogen is introduced through the air inlet on the tester body and enters the gap between the outer and inner casings;

[0106] A gas distributor is provided between the gas inlet and the outer casing to evenly distribute the incoming nitrogen and ensure that the nitrogen can flow evenly around the inner casing.

[0107] Nitrogen flow:

[0108] Nitrogen flows in the flow channel formed between the outer casing and the inner casing to protect the sample boat from the influence of the outside air.

[0109] The movement range of the inner sleeve is restricted by the limit device, ensuring the stability of the nitrogen flow channel and avoiding test errors caused by uneven nitrogen flow;

[0110] Nitrogen exhaust:

[0111] The exhaust gas generated during the test is discharged through the exhaust port on the tester body, which is located at the other end of the tester;

[0112] The design of the exhaust port ensures that the exhaust gas can be discharged smoothly without affecting the effect of nitrogen protection.

Claims

1. An improved device for carbon black content tester, characterized in that: The invention comprises a main body (10), a sleeve device (20), a sample boat (30) and a limiting device (40), wherein the sleeve device (20) comprises an outer sleeve (21) and an inner sleeve (22), wherein the outer sleeve (21) is fixedly arranged inside the main body (10), and the inner sleeve (22) is movably arranged inside the outer sleeve (21) and can move along the axial direction of the outer sleeve (21), and the sample boat (30) is placed in the inner sleeve (22) for carrying the sample to be tested, and the inner sleeve (22) and the outer sleeve (21) are connected to each other through the limiting device (40), and the limiting device (40) is used to limit the moving range of the inner sleeve (22).

2. The improved device for carbon black content tester according to claim 1, characterized in that: The outer sleeve (21) and the main body (10) are fixedly connected via a fixing device, so as to fix the outer sleeve (21) in the main body (10).

3. The improved device for carbon black content tester according to claim 2, characterized in that: The limiting device (40) is arranged between the inner wall of the outer sleeve (21) and the outer wall of the inner sleeve (22) to limit the axial movement range of the inner sleeve (22).

4. The improved device for carbon black content tester according to claim 3, characterized in that: The inner sleeve (22) is provided with a guide device, and the guide device is used to assist the sample boat (30) to enter and be positioned in the inner sleeve (22).

5. The improved device for carbon black content tester according to claim 4, characterized in that: The guide device is specifically a guide groove arranged inside the inner sleeve (22).

6. The improved device for carbon black content tester according to claim 5, characterized in that: The limiting device (40) is specifically a limiting ring, which is installed on the inner wall of the outer sleeve (21). The outer diameter of the inner sleeve (22) is slightly smaller than the inner diameter of the limiting ring. One or more limiting rings are provided.

7. The improved device for carbon black content tester according to claim 5, characterized in that: The limiting device (40) is specifically a limiting baffle, and the limiting baffle is specifically one or more baffles installed on the inner wall of the outer sleeve (21), and the limiting baffle is perpendicular to the axis of the sleeve device (20).

8. An improved device for carbon black content tester according to claim 6 or 7, characterized in that: The fixing device is specifically a fixing method of welding or bolt connection.

9. The improved device for carbon black content tester according to claim 8, characterized in that: The main body (10) is provided with an air inlet and an air outlet, respectively used for introducing nitrogen and discharging waste gas. A gas distributor is provided between the air inlet and the outer sleeve (21), and the gas distributor comprises a plurality of equally spaced through holes or slits.

10. The improved device for carbon black content tester according to claim 9, characterized in that: A nitrogen flow channel is formed between the outer sleeve (21) and the inner sleeve (22), and the cross-sectional shape of the nitrogen flow channel is circular or elliptical.

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