Fiber content automatic testing instrument with stirring function

Abstract

The utility model provides a kind of fiber reduction automatic tester with stirring function, including support, installation site being opened in the top of support, annular groove being opened in the bottom of support, heating cup is inserted in installation site, the installation site is arranged with heating ring along circumference, burrell is inserted in annular groove, and the middle part of the support is equipped with through-hole, heating cup bottom has drain, and the drain is matched with through-hole;The utility model can improve the automation effect of fiber reduction test, effectively avoid personnel scald and other adverse conditions.

Description

Technical Field

[0001] This utility model relates to the field of fiber weight loss testing equipment, and in particular to an automatic fiber weight loss tester with a stirring function. Background Technology

[0002] Currently, when testing fiber weight loss, it is usually necessary to place the fiber in the Buchner funnel of a filtration device, and then pour hot water and hot water containing the sample into the filtration device for filtration. After filtration, the tested fiber is taken out, dried, cooled, and weighed to complete the fiber weight loss test.

[0003] During this process, both the hot water and the hot water containing the sample need to be heated to around 90°C. At this point, the test personnel need to use heat-resistant gloves, clamps, and other means to pick up and pour the beakers and other containers, which can easily cause burns or other adverse effects. Furthermore, during the heating process, the test personnel need to stir the hot water containing the sample continuously or at intervals, making it highly dependent on manual labor and preventing other test preparations from being carried out during the heating process. Utility Model Content

[0004] The purpose of this invention is to provide an automatic fiber loss tester with a stirring function that can improve the automation effect of fiber loss testing and effectively avoid adverse situations such as burns to personnel.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic fiber reduction tester with stirring function, including a bracket, a mounting position opened at the top of the bracket, an annular groove opened at the bottom of the bracket, a heating cup inserted into the mounting position, a heating ring arranged circumferentially in the mounting position, a Buchner funnel inserted into the annular groove, and a through hole opened in the middle of the bracket, and a drain outlet at the bottom of the heating cup, the drain outlet matching the through hole.

[0006] Furthermore, a telescopic rod is connected to the side of the bracket, and an adjustment plate is connected to the top of the telescopic rod. A stirring rod is rotatably installed at the adjustment plate so that when the heating cup is placed in the installation position, the stirring rod is located inside the heating cup.

[0007] Furthermore, the telescopic rod includes an inner tube and an outer tube that are telescopically compatible. A first positioning hole is provided through the inner tube, and a plurality of second positioning holes are provided sequentially along the height direction on the outer tube, so that when the pin passes through the first positioning hole and one of the second positioning holes, the inner tube and the outer tube are mutually positioned.

[0008] Furthermore, the support has several vent holes along its circumference, with one end of each vent hole facing the bottom of the support, so that when the Buchner funnel is inserted into the annular groove, the vent holes are used to connect the inner and outer sides of the Buchner funnel.

[0009] Furthermore, a water inlet pipe is inserted into one of the vent holes, and one end of the water inlet pipe has a limiting plate so that when the water inlet pipe is inserted into the vent hole, the limiting plate abuts against the outside of the bracket.

[0010] Furthermore, the through hole has a valve, and a sealing ring is provided circumferentially at the connection between the through hole and the drain outlet.

[0011] Furthermore, the heating cup is made of transparent material, and scale lines are spaced along the height direction on the outer periphery of the heating cup.

[0012] The beneficial effects of this utility model are as follows: After the fiber is placed in the Buchner funnel, the opening of the Buchner funnel is inserted into the annular groove, and then the heating cup is placed in the installation position, so that the bracket temporarily connects the Buchner funnel and the heating cup into one unit. The hot water in the heating cup is heated by the heating coil, and the sample is added to the hot water. When the hot water is heated to a suitable temperature and maintained for a certain period of time, the drain outlet is opened, so that the hot water containing the sample can automatically enter the Buchner funnel and be filtered by the suction filtration device, so as to automatically complete the heating, pouring of hot water and other steps. The entire process does not require the experimental personnel to handle the hot water, which not only avoids the adverse effects on the experimental personnel, but also automates the measurement experiment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This utility model Figure 2 Cross-sectional view along line AA.

[0016] Reference numerals: 1. Bracket; 2. Mounting position; 3. Annular groove; 4. Heating cup; 5. Heating ring; 6. Through hole; 7. Drain outlet; 8. Adjusting plate; 9. Stirring rod; 10. Inner tube; 11. Outer tube; 12. First positioning hole; 13. Second positioning hole; 14. Vent hole; 15. Water inlet pipe; 16. Limiting plate; 17. Valve; 18. Sealing ring; 19. Scale line; 20. Pin. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation of this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] like Figures 1-3 The present invention provides an automatic fiber reduction tester with stirring function, including a bracket 1, a mounting position 2 opened at the top of the bracket 1, an annular groove 3 opened at the bottom of the bracket 1, a heating cup 4 inserted into the mounting position 2, a heating ring 5 arranged circumferentially in the mounting position 2, a Buchner funnel inserted into the annular groove 3, and a through hole 6 opened in the middle of the bracket 1. The bottom of the heating cup 4 has a drain outlet 7, and the drain outlet 7 matches the through hole 6.

[0021] After the fiber is placed in the Buchner funnel, the opening of the Buchner funnel is inserted into the annular groove. Then, the heating cup is placed in the mounting position, so that the bracket temporarily connects the Buchner funnel and the heating cup into one unit. The hot water in the heating cup is heated by the heating coil, and the sample is added to the hot water. After the hot water is heated to a suitable temperature and maintained for a certain period of time, the drain outlet is opened, so that the hot water containing the sample can automatically enter the Buchner funnel and be filtered by the vacuum filtration device. This allows for the automatic completion of steps such as heating and pouring hot water, and the entire process does not require the experimental personnel to handle the hot water, which not only avoids adverse effects on the experimental personnel, but also automates the measurement experiment.

[0022] The heating coil can be electrically heated; the Buchner funnel is connected to the filtration flask, vacuum pump, and other structures to form a filtration device.

[0023] Preferably, the support 1 is connected to a telescopic rod on its side, and an adjustment plate 8 is connected to the top of the telescopic rod. A stirring rod 9 is rotatably installed at the adjustment plate 8 so that when the heating cup 4 is placed in the installation position 2, the stirring rod 9 is located inside the heating cup 4.

[0024] Specifically, when the heating cup is initially placed in the installation position, the telescopic rod is raised so that the stirring rod will not interfere with the heating cup. After the heating cup is placed, the telescopic rod can be lowered so that the adjusting plate drives the stirring rod down into the heating cup, thereby ensuring the stirring function of the stirring rod on the heating cup.

[0025] The regulating plate is equipped with a motor, the output of which is connected to the stirring rod so that the motor controls the rotation of the stirring rod.

[0026] In one embodiment of this solution, a temperature sensor may also be installed at the end of the stirring rod to detect the temperature of the hot water in the heating cup.

[0027] Preferably, the telescopic rod includes an inner tube 10 and an outer tube 11 that are telescopically compatible. A first positioning hole 12 is provided through the inner tube 10, and a plurality of second positioning holes 13 are provided along the height direction of the outer tube 11, so that when the pin 20 passes through the first positioning hole 12 and one of the second positioning holes 13, the inner tube 10 and the outer tube 11 are mutually positioned.

[0028] Specifically, when adjusting the telescopic rod, the inner tube is extended or retracted relative to the outer tube. After adjusting the height, the pin is inserted into the first positioning hole and the corresponding second positioning hole. This allows for quick positioning of the telescopic rod's extension length and ensures the stability of the stirring rod's height.

[0029] Preferably, the support 1 has a plurality of vent holes 14 circumferentially, and one end of the vent hole 14 faces the bottom of the support 1, so that when the Buchner funnel is inserted into the annular groove 3, the vent hole 14 is used to connect the inner and outer sides of the Buchner funnel.

[0030] Specifically, after hot water is poured into the Buchner funnel, the thermal expansion and contraction of the hot water with the air, as well as the air extraction by the air pump, will affect the air pressure between the Buchner funnel and the bottom of the support, which is not conducive to the filtration process. Therefore, this solution is equipped with a vent hole so that the cavity between the Buchner funnel and the bottom of the support can be connected with the outside air, thereby ensuring the stability of the filtration.

[0031] Preferably, a water inlet pipe 15 is inserted into one of the vent holes 14, and one end of the water inlet pipe 15 has a limiting plate 16, so that when the water inlet pipe 15 is inserted into the vent hole 14, the limiting plate 16 abuts against the outside of the bracket 1.

[0032] Specifically, since some hot water needs to be poured into the Buchner funnel before pouring the hot water containing the sample into the fiber, the water inlet pipe is connected to one of the vent holes so that hot water can enter from the water inlet pipe. The position of the water inlet pipe is kept stable by the limiting plate, thereby improving the stability of the sequential addition of hot water and hot water containing the sample.

[0033] In one embodiment of this solution, the outer end of the water inlet pipe is connected to the hot water supply equipment to ensure a stable supply of hot water. The limiting plate can be made of rubber material, so that the water inlet pipe can be easily disassembled by moving the side of the limiting plate.

[0034] Preferably, the through hole 6 has a valve 17, and a sealing ring 18 is provided circumferentially at the connection between the through hole 6 and the drain outlet 7.

[0035] Specifically, during the heating and stirring of hot water in the heating cup, the solution in the heating cup is sealed by a valve to prevent unheated hot water from falling into the Buchner funnel. After the heating preparation is completed, the valve can be opened to ensure that the hot water containing the sample can accurately fall into the Buchner funnel.

[0036] Among them, the valve can adopt a solenoid valve structure.

[0037] Preferably, the heating cup 4 is made of transparent material, and the heating cup 4 has scale lines 19 spaced apart along the height direction on its outer periphery.

[0038] Specifically, when replenishing hot water in a heating cup, the accuracy of the solution volume in the heating cup can be improved by using transparent materials and graduated lines.

[0039] Based on the above structure, this solution can be implemented in practical use according to the following steps: 1. Place the fiber in the Buchner funnel of the filtration device, install the rest of the filtration device structure, rinse with 1000ML of hot water (85℃-95℃), filter, remove the fiber, put it in an oven at 105℃±2℃ to dry to constant weight, cool, weigh, accurate to 0.1mg; 2. Place the treated fibers in a Buchner funnel and assemble a vacuum filter. 3. Add 1000ml of water to the heating cup, place it in the installation position and heat it. When the water temperature rises to the set temperature (40℃-50℃), put the prepared sample into the heating cup, stir and continue heating. The heating rate is controlled at 1℃ / min. 4. When the temperature reaches the set temperature (85℃-95℃), maintain the temperature for 5 minutes; 5. First, add 300ml of hot water (85℃-95℃) through the inlet pipe into the Buchner funnel and filter. Then, pour the hot water (85℃-95℃) containing the sample from the heating cup into the Buchner funnel and filter. After filtration, rinse with 1000ml of hot water (85℃-95℃) and filter again. 6. Remove the fiber and place it in an oven at 105℃±2℃ until constant weight. Cool it and weigh it to an accuracy of 0.1mg.

[0040] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. An automatic fiber weight loss tester with a stirring function, characterized in that: The device includes a bracket (1), a mounting position (2) at the top of the bracket (1), and an annular groove (3) at the bottom of the bracket (1). A heating cup (4) is inserted into the mounting position (2). A heating ring (5) is arranged circumferentially in the mounting position (2). A Buchner funnel is inserted into the annular groove (3). A through hole (6) is opened in the middle of the bracket (1). A drain outlet (7) is provided at the bottom of the heating cup (4). The drain outlet (7) matches the through hole (6).

2. The automatic fiber loss tester with stirring function according to claim 1, characterized in that: The bracket (1) is connected to a telescopic rod on its side, and an adjustment plate (8) is connected to the top of the telescopic rod. A stirring rod (9) is rotatably installed at the adjustment plate (8) so that when the heating cup (4) is placed in the installation position (2), the stirring rod (9) is located inside the heating cup (4).

3. The automatic fiber loss tester with stirring function according to claim 2, characterized in that: The telescopic rod includes an inner tube (10) and an outer tube (11) that are telescopically compatible. A first positioning hole (12) is provided through the inner tube (10), and a plurality of second positioning holes (13) are provided along the height direction in the outer tube (11) so that when the pin (20) passes through the first positioning hole (12) and one of the second positioning holes (13), the inner tube (10) and the outer tube (11) are positioned relative to each other.

4. The automatic fiber loss tester with stirring function according to claim 1, characterized in that: The support (1) has several vent holes (14) circumferentially, and one end of the vent hole (14) faces the bottom of the support (1) so that when the Buchner funnel is inserted into the annular groove (3), the vent hole (14) is used to connect the inner and outer sides of the Buchner funnel.

5. The automatic fiber loss tester with stirring function according to claim 4, characterized in that: A water inlet pipe (15) is inserted into one of the vent holes (14), and one end of the water inlet pipe (15) has a limiting plate (16) so that when the water inlet pipe (15) is inserted into the vent hole (14), the limiting plate (16) abuts against the outside of the bracket (1).

6. The automatic fiber loss tester with stirring function according to claim 1, characterized in that: The through hole (6) has a valve (17), and a sealing ring (18) is provided circumferentially at the connection between the through hole (6) and the drain outlet (7).

7. The automatic fiber loss tester with stirring function according to claim 1, characterized in that: The heating cup (4) is made of transparent material, and the outer periphery of the heating cup (4) is provided with scale lines (19) spaced apart along the height direction.

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