Uniform and controllable moisture permeability device adopting multi-station weighing method

Abstract

The utility model relates to the field of instruments and meters, in particular to a multi-station weighing method moisture-permeable uniform controllable device which comprises a cavity bottom plate, a rotating device is fixed on the cavity bottom plate, and a moisture-permeable cup bottom plate and a plurality of moisture-permeable cups are arranged in a device shell. A bearing is arranged between the rotating device and the cavity bottom plate, a centrifugal fan blade is arranged at the tail end, located in the device shell, of the rotating device, and a probe of a weighing sensor is arranged above the moisture permeable cup. According to the utility model, the bearing is arranged, so that the problem that the experiment result and the service life of the rotating device are possibly influenced by unstable output wind power caused by shaking of the output shaft is solved. According to the utility model, through the controllable brushless motor and the centrifugal fan impeller, the wind speed is uniform and controllable, and the market prospect is wider. According to the utility model, the probe and the humidifying pipe are directly arranged on the moisture permeable cup, so that the possibility of loss caused by misestimation due to errors is reduced.

Description

Technical Field

[0001] The utility model relates to the field of instruments and meters, and particularly relates to a multi-station weighing method moisture permeability uniform and controllable device. Background Technique

[0002] With the rapid development of society and the progress of science, more and more products are stored in warehouses. How to prevent external liquids, water vapor and other permeates that affect product quality from entering the packaging during the warehouse storage of products has become an important factor affecting product quality and shelf life.

[0003] A weighing method moisture permeation meter is an instrument used to measure the barrier performance of packaging materials against permeates such as liquids and water vapor. A multi-station weighing method moisture permeation meter can even test and analyze multiple samples simultaneously.

[0004] In the existing multi-station weighing method moisture permeation meter, there is a large gap between the output shaft and the cavity bottom plate. When the output shaft rotates, as time goes by, the output shaft may vibrate, causing the upper centrifugal fan blade to shake, resulting in unstable output wind force and affecting the experimental results.

[0005] In the existing multi-station weighing method moisture permeation meter, a common motor and a common impeller are used as the wind speed generating device. Due to the motor, the motor and the impeller do not rotate at the same frequency, and it can only be used for test samples that do not require particularly accurate test results.

[0006] In the existing multi-station weighing method moisture permeation meter, the probe of the weighing sensor is far from the moisture permeation cup. It is necessary to increase the output of water vapor to obtain test results. However, after increasing, the excessive water vapor will interfere with the test results of other moisture permeation cups. Content of the Utility Model

[0007] The utility model provides a multi-station weighing method moisture permeability uniform and controllable device, which solves the problem that in the use of the existing multi-station weighing method moisture permeation meter, due to uneven and uncontrollable wind speed, the experimental results may be inaccurate, resulting in the selected product packaging being permeated, affecting product quality and shelf life, and causing losses to enterprises.

[0008] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0009] A multi-station weighing method moisture permeability uniform and controllable device, including a cavity bottom plate, a rotating device is fixed on the cavity bottom plate, the rotating device passes through the cavity bottom plate and enters the device housing, a moisture permeation cup bottom plate and a plurality of moisture permeation cups are arranged in the device housing, a bearing is arranged on the part of the rotating device passing through the cavity bottom plate, a centrifugal fan blade is arranged at the end of the rotating device in the device housing, and a probe of a weighing sensor is arranged above the moisture permeation cup.

[0010] Further, the rotating device includes a fixed seat, a brushless motor, and an output shaft. The fixed seat is fixed to the lower end of the cavity bottom plate. The brushless motor is fixed in the fixed seat. The brushless motor is fixedly connected to the output shaft. The output shaft passes through the cavity bottom plate through the fixed seat and is connected to enter the device housing.

[0011] Further, a humidifying device is arranged below the cavity bottom plate. The humidifying device includes a humidifying box and a humidifying pipe. The humidifying box is movably connected to the device housing through the humidifying pipe.

[0012] Further, a drying device is arranged below the cavity bottom plate. The drying device includes a drying box, an inlet pipe, and an outlet pipe. The drying box is fixedly connected to the device housing through the inlet pipe and the outlet pipe.

[0013] Further, the plurality of moisture permeability cups are evenly distributed on the moisture permeability cup bottom plate.

[0014] Further, a plurality of heating sheets are arranged in the device housing corresponding to the moisture permeability cups.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By setting a bearing between the cavity bottom plate and the output shaft, the present utility model reduces the gap between the output shaft and the cavity bottom plate, solves the problem that the output shaft shakes, resulting in unstable output wind force and affecting the experimental results, thereby enabling the rotating device to have a longer service life and saving costs.

[0017] 2. By using a controllable brushless motor and a centrifugal wind impeller as the wind speed generating device, the present utility model realizes uniform controllability of the wind speed. The adjustable wind speed device enables the weighing method moisture permeability tester to meet more sample requirements, has a wider range of applications, and has a broader market prospect.

[0018] 3. By directly arranging a probe and a humidifying pipe on each moisture permeability cup, the present utility model reduces the distance between the probe and the sample material covered by the moisture permeability cup, and also reduces the distance that water vapor needs to move, maximizing the utilization of water vapor, thereby making the test results more accurate and reducing the possibility of misestimation caused by errors and resulting in losses. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a top view of the moisture permeability cup bottom plate of the present utility model;

[0021] Reference numerals in the figure: 1. Brushless motor; 2. Fixed seat; 3. Bearing; 4. Cavity bottom plate; 5. Permeability cup bottom plate; 6. Permeability cup; 7. Output shaft; 8. Centrifugal fan blade; 9. Humidification box; 10. Humidification pipe; 11. Drying box; 12. Outlet pipe; 13. Inlet pipe; 14. Weighing sensor; 15. Probe; 16. Heating element; 17. Device housing Detailed implementation mode

[0022] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Refer to Figure 1-2 , a multi-station weighing method moisture permeability uniform and controllable device, including a cavity bottom plate 4, a fixed seat 2 is fixedly connected below the cavity bottom plate 4, and a brushless motor 1 is fixed in the fixed seat 2.

[0024] The brushless motor 1 is fixedly connected with an output shaft 7, and the output shaft 7 passes upward through a bearing 3 fixedly connected in a hole of the cavity bottom plate 4 and enters the device housing 17.

[0025] A moisture permeability cup bottom plate 5 is arranged in the device housing 17, and a plurality of moisture permeability cups 6 are arranged on the moisture permeability cup bottom plate 5. After the output shaft 7 enters the device housing, it passes through the moisture permeability cup bottom plate 5 and is fixedly connected with a centrifugal fan blade 8.

[0026] A humidification box 9 is arranged at the lower end of the device housing 17, and a plurality of humidification pipes 10 are arranged on the humidification box and fixedly connected below the moisture permeability cup 6.

[0027] A drying box 11 is arranged at the lower end of the device housing 17. The drying box 11 is provided with an outlet pipe 12 and an inlet pipe 13. The outlet pipe 12 and the inlet pipe 13 are fixedly connected to the device housing 17 and are responsible for drying the air in the device housing 17.

[0028] A plurality of heating elements 16 are arranged on the inner wall of the device housing 17 to continuously heat and dry the air in the device housing 17.

[0029] A weighing sensor 14 is arranged above the device housing 17. The weighing sensor 14 is provided with a plurality of probes 15, and one probe 15 is arranged above each moisture permeability cup 6.

[0030] Working principle:

[0031] First, the device housing 17 of this device is opened, and the moisture permeability cup 6 is removed from the moisture permeability cup bottom plate 5.

[0032] Then, cover the sample material to be tested on the moisture permeability cup, and after fixing it firmly, place the moisture permeability cup 6 back on the moisture permeability cup bottom plate 5 and close the device housing 17.

[0033] Start the heating sheet 16 to start heating the environment inside the device housing 17. At the same time, start the drying oven 11. The drying oven 11 sucks out air through the air outlet pipe and circulates the dried air back into the device housing 17 through the air inlet pipe.

[0034] When the environment inside the device housing 17 is completely dry, start the humidifying box 9, and send water vapor through the space below the moisture permeability cup 6 into the moisture permeability cup 6 through the humidifying pipe 10.

[0035] Start the brushless motor 1. Through the rotation of the output shaft 7, drive the centrifugal fan blade 8 located inside the device housing 17 to rotate. Control the speed of the brushless motor 1 through the control mechanism to meet different requirements for the air speed inside the cavity, so as to achieve controllable and uniform air speed inside the device housing 17.

[0036] The probe 15 of the weighing sensor 14 above the moisture permeability cup 6 starts to work, continuously detect the moisture permeability situation of the moisture permeability cup 6, and record the specific situation of the sample material through the sensor.

[0037] After the test is completed, turn off devices such as the opened heating sheet 16, drying oven 11, and humidifying box 9. Wait until the temperature and humidity inside the device housing 17 recover, then open the device housing 17, remove the sample material covering the moisture permeability cup 6, clean the moisture permeability cup 6, let it dry naturally and then put it back into the device housing 17 to complete this weighing.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0040] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A multi-station weighing method moisture permeability uniform and controllable device, comprising a cavity bottom plate, a rotating device is fixed on the cavity bottom plate, the rotating device passes through the cavity bottom plate and enters the device housing, a moisture permeability cup bottom plate and a plurality of moisture permeability cups are arranged in the device housing, characterized in that, The rotating device is provided with a bearing through the cavity bottom plate part, a centrifugal fan blade is arranged at the end of the rotating device inside the device housing, and a probe of a weighing sensor is arranged above the moisture permeation cup.

2. The multi-station weighing method moisture permeability uniform and controllable device according to claim 1, wherein, The rotating device includes a fixed seat, a brushless motor and an output shaft. The fixed seat is fixedly connected to the lower end of the cavity bottom plate. The brushless motor is fixedly connected in the fixed seat. The brushless motor is fixedly connected to the output shaft, and the output shaft passes through the cavity bottom plate through the fixed seat and is connected into the device housing.

3. The multi-station weighing method moisture permeability uniform and controllable device according to claim 1, characterized in that, A humidifying device is arranged below the cavity bottom plate. The humidifying device includes a humidifying box and a humidifying pipe, and the humidifying box is movably connected to the device housing through the humidifying pipe.

4. The multi-station weighing method moisture permeability uniform and controllable device according to claim 1, characterized in that, A drying device is arranged below the cavity bottom plate. The drying device includes a drying box, an inlet pipe and an outlet pipe, and the drying box is fixedly connected to the device housing through the inlet pipe and the outlet pipe.

5. The multi-station weighing method moisture permeability uniform and controllable device according to claim 1, characterized in that The plurality of moisture permeation cups are evenly distributed on the moisture permeation cup bottom plate.

6. The multi-station weighing method moisture permeability uniform and controllable device according to claim 1, characterized in that A plurality of heating sheets are arranged in the device housing corresponding to the moisture permeation cups.

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