Device and method for automatically detecting water repellency of water-repellent goose down

Abstract

The invention relates to the technical field of goose down detection, and provides a device and method for automatically detecting the water repellency of water-repellent goose down, and the device comprises a base, a first cylinder and a disturbance assembly, and also comprises a second cylinder communicated with the first cylinder; the projection piece is arranged in the second cylinder body and moves up and down along with the lifting of the water surface; a light source member; photosensitive pieces are arranged on the strip-shaped piece from top to bottom; after the water-repellent goose down is put, the number of the light sensing pieces capable of sensing the light emitted by the light source piece is recorded as Q1, then disturbance action with standard duration and intensity is carried out through the disturbance assembly, and after the water surface is static, the number of the light sensing pieces capable of sensing the light emitted by the light source piece is recorded as Q2; the water repellency of the detected water repellency goose down is defined through the difference value between Q1 and Q2, the larger the difference value is, the larger the proportion of the water repellency goose down representing the standard amount immersed in the water body is, that is, the poorer the water repellency is, numerical quantitative judgment is conducted, and the accuracy and scientificity of the detection result are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of goose down testing technology, specifically an automatic testing device and method for the water-repellent properties of water-repellent goose down. Background Technology

[0002] Water repellency is one of the key indicators for evaluating the quality of goose down, as it directly relates to the insulation ability of down products in humid environments. Currently, the industry generally uses the following traditional method to test the water repellency of goose down: First, a certain weight of the goose down sample to be tested is weighed. Then, it is placed in a transparent container containing a set amount of test water (such as distilled water, deionized water, etc.). Next, the container is shaken for a standard duration and intensity (to disturb the water) to ensure full contact between the goose down and the water. Finally, after the water surface settles... The method relies on operators to visually assess the proportion of goose down submerged in water. Goose down with poor water repellency sinks quickly because its fibers are more easily wetted and absorb water, while goose down with strong water repellency floats on the surface due to its surface tension. The higher the submerged proportion, the worse the water repellency of the goose down being tested. However, this visual assessment method is highly subjective. Different operators have different judgment standards, making it impossible to achieve a unified and quantitative assessment. This results in a large margin of error and insufficient accuracy and scientific validity of the test results.

[0003] Therefore, this invention proposes an automatic detection device and method for the water-repellent performance of water-repellent goose down to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic detection device and method for the water-repellent performance of water-repellent goose down, so as to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automatic testing device and method for the water-repellent performance of water-repellent goose down includes a base, a first cylinder disposed on the base for holding test water and dispensing the water-repellent goose down to be tested, and a disturbance component for causing the test water to be in a disturbed state, and further includes: The second cylinder is connected to the first cylinder; A projection component installed in the second cylinder that moves up and down with the rise and fall of the water level; Light source components used for projection magnification; A strip-shaped component is disposed on the base and is positioned directly opposite the projection component and spaced apart from the light source component. Photosensitive components for sensing the light emitted by the light source component are arranged from top to bottom on the strip-shaped component.

[0006] In one alternative: the second cylinder is connected to the first cylinder by a connecting pipe, and the connecting pipe is equipped with a shut-off valve, which is an electrically operated shut-off valve.

[0007] In one alternative: the projection element includes a float and a light-blocking strip disposed on the float.

[0008] In one alternative: the second cylinder is further provided with a limiting member, through which the light-blocking strip slides up and down, thereby restricting the light-blocking strip to move only vertically up and down.

[0009] In one alternative: the photosensitive element is a miniature photoresistor, and the photosensitive elements are arranged closely together.

[0010] In one alternative: the disturbance component includes a water-dispersing plate disposed in the first cylinder and a driving member for driving the water-dispersing plate to reciprocate at a set speed and amplitude.

[0011] In one alternative: the lower part of the first cylinder is provided with a drain outlet, and the first cylinder is also detachably provided with a perforated plate for blocking goose down, the perforated plate being located above the connection between the second cylinder and the first cylinder.

[0012] In one alternative: the first cylinder is symmetrically provided with multiple magnetic supports, the mesh plate is provided with magnetic suction components that correspond one-to-one with the magnetic supports and magnetically engage, and the mesh plate is also provided with a handheld component.

[0013] A method for testing the water-repellent properties of water-repellent goose down, using an automatic testing device for the water-repellent properties of water-repellent goose down as described in any of the above technical solutions, includes the following steps: S1: Inject a standard amount of test water into the first cylinder; S2: Weigh the standard weight of the water-repellent goose down to be tested and put it into the first cylinder and start the automatic detection. At this time, the number of photosensitive elements that can sense the light emitted by the light source is recorded as Q1. S3: The test water is placed in a disturbed state by performing a disturbance action of standard duration and intensity through the disturbance component; S4: After the water surface is still, a certain proportion of water-repellent goose down will be submerged in the water, causing the water level to rise. Under the principle of communicating vessels, the water level in the second cylinder will also rise, which will cause the projection component to move upward. At this time, the number of photosensitive components that can sense the light emitted by the light source component is recorded as Q2. The water-repellent performance of the measured water-repellent goose down is defined by the difference between Q1 and Q2. The larger the difference, the greater the proportion of the standard amount of water-repellent goose down submerged in the water, that is, the worse the water-repellent performance.

[0014] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: The magnified projection generated by the light source onto the projection element falls on the strip element. Due to the blocking effect of the projection element, the photosensitive elements from bottom to top cannot sense the light emitted by the light source. The higher the top of the projection element, the greater the blocking height, meaning fewer photosensitive elements can sense the light emitted by the light source. After the water-repellent down is placed, the number of photosensitive elements that can sense the light emitted by the light source is recorded as Q1. Then, the test water is disturbed by a disturbance component for a standard duration and intensity. After the water surface is still, a certain proportion of the water-repellent down will be submerged in the water, causing the water level to rise. Under the principle of communicating vessels, the water level in the second cylinder will also rise, thus moving the projection element upward. The number of photosensitive elements that can sense the light emitted by the light source at this time is recorded as Q2. The water-repellent performance of the tested water-repellent down is defined by the difference between Q1 and Q2. The larger the difference, the greater the proportion of the standard amount of water-repellent down submerged in the water, meaning the worse the water-repellent performance. Numerical quantification ensures the accuracy and scientific nature of the test results.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram illustrating the arrangement between the strip and the photosensitive element in an embodiment of the present invention.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 This is a schematic diagram illustrating the projection magnification principle in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram illustrating the arrangement between the projector and the limiting member in an embodiment of the present invention.

[0022] Figure 6 for Figure 1 Enlarged view of section B in the middle.

[0023] Figure reference numerals: 1-base, 2-first cylinder, 3-disturbance component, 301-water baffle, 302-drive component, 4-second cylinder, 5-connecting pipe, 6-stop valve, 7-projection component, 701-float, 702-light blocking strip, 8-light source component, 9-strip component, 10-drain outlet, 11-photosensitive component, 12-limiting component, 13-mesh plate, 14-magnetic support, 15-magnetic suction component. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Please see Figures 1-4 An automatic testing device and method for the water-repellent performance of water-repellent goose down includes a base 1, a first cylinder 2 disposed on the base 1 for holding test water and placing the water-repellent goose down to be tested, and a disturbance component 3 for causing the test water to be in a disturbed state, and further includes: The second cylinder 4 is connected to the first cylinder 2; A projection element 7 is installed in the second cylinder 4 and moves up and down with the rise and fall of the water level; Light source component 8 for projection magnification projection component 7; A strip 9 is disposed on the base 1 and is positioned opposite the projection element 7 at a distance from the light source element 8. Photosensitive elements 11 for sensing the light emitted by the light source element 8 are arranged from top to bottom on the strip 9.

[0026] First, a standard amount of test water (such as distilled water, deionized water, etc.) is injected into the first cylinder 2. Then, a standard weight of the water-repellent goose down to be tested is weighed and placed into the first cylinder 2, and automatic detection is started. The magnified projection generated by the light source 8 illuminating the projection element 7 falls on the strip element 9. Due to the blocking effect of the projection element 7, the photosensitive elements 11 from bottom to top cannot sense the light emitted by the light source 8. The higher the top of the projection element 7, the higher the blocking height, meaning that fewer photosensitive elements 11 can sense the light emitted by the light source 8. After the down is placed... After the water-repellent down is applied, the number of photosensitive elements 11 that can sense the light emitted by the light source 8 at this point (when the water surface is still) is recorded as Q1. Then, the perturbation component 3 performs a perturbation action of standard duration and intensity to keep the test water in a disturbed state, ensuring full contact between the tested water-repellent down and the test water. After the water surface becomes still (i.e., the water surfaces in both the first cylinder 2 and the second cylinder 4 are still), a certain proportion of the water-repellent down will be submerged in the water, causing the water level to rise. Under the principle of communicating vessels, the water level in the second cylinder 4... It will also rise and drive the projector 7 to move upward. At this time, the number of photosensitive elements 11 that can sense the light emitted by the light source 8 is recorded as Q2. The water repellency of the measured water-repellent goose down is defined by the difference between Q1 and Q2. The larger the difference, the larger the proportion of the standard amount of water-repellent goose down immersed in the water, that is, the worse the water repellency. The numerical quantitative evaluation ensures the accuracy and scientific nature of the test results. It should be noted that: (1) Due to the small sample size of goose down usually taken for the water repellency test of water-repellent goose down, and the water repellency of the goose down itself, the volume of water displaced by the final immersion in the water is small, resulting in a small rise in water level, which is usually not noticeable to the naked eye. The currently used high-precision liquid level measurement technology, such as the optical method, requires high transparency of the liquid being measured. It is not applicable because the water contains goose down that blocks the view. The radar method is also not applicable because there is goose down floating on the water surface. Moreover, high-precision liquid level measurement systems are often expensive. This application can slightly move the projector 7 upward to amplify it to the point where it can be effectively measured (e.g. Figure 4 (as shown), low cost; (2) The depth of the first cylinder 2 and the second cylinder 4 in this application satisfies that the water disturbance during the test will not cause spillage; (3) The purpose of setting the second cylinder 4 to be connected with the first cylinder 2 is to avoid the projection part 7 being placed in the first cylinder 2 and coming into contact with the water-repellent goose down being tested, so as not to interfere with or affect the accuracy of the test.

[0027] Furthermore, the photosensitive element 11 is a miniature photoresistor (low cost), and the photosensitive elements 11 are arranged closely together. The base 1 is provided with a control panel for operating the detection device. The control panel is also used to display the number of photosensitive elements 11 that can sense the light emitted by the light source element 8. After the test is completed, the difference between Q1 and Q2 is automatically displayed. The corresponding control and display are existing technologies and will not be described in detail here.

[0028] Please see Figure 1 In one embodiment of the present invention, the second cylinder 4 and the first cylinder 2 are connected by a connecting pipe 5. The connecting pipe 5 is equipped with a shut-off valve 6, which is an electric shut-off valve. After the water-repellent down is added and Q1 is measured, the shut-off valve 6 is closed to ensure that the amount of test water in the first cylinder 2 is constant and always at the standard amount, so that the water volume will not change and affect the test results. It should be noted that the standard amount of test water injected into the first cylinder 2 also includes the water entering the second cylinder 4. Specifically, after the water surface is still, the amount of water in the first cylinder 2 is the standard amount required for the test. After the disturbance action is completed, the shut-off valve 6 is opened again to keep the first cylinder 2 and the second cylinder 4 in a connected state.

[0029] Please see Figure 1 and Figure 5 In one embodiment of the present invention, the projection element 7 includes a float 701 and a light-blocking strip 702 disposed on the float 701; The second cylindrical body 4 is also provided with a limiting member 12. The light-blocking strip 702 slides up and down through the limiting member 12. The limiting member 12 is used to restrict the light-blocking strip 702 to only move vertically up and down, so as to avoid the light-blocking strip 702 shifting and shaking laterally and affecting the accurate sensing of the photosensitive element 11 after projection magnification.

[0030] Please see Figure 1 In one embodiment of the present invention, the disturbance component 3 includes a water-disturbing plate 301 disposed in the first cylinder 2 and a driving component 302 (the driving component 302 is a servo motor, stepper motor, etc. in the prior art) for driving the water-disturbing plate 301 to reciprocate at a set speed and amplitude. The water-disturbing plate 301 is driven to reciprocate by the alternating forward and reverse rotation of the output shaft of the driving component 302, thereby making the test water in a disturbed state. The disturbance intensity on the test water can be adjusted by adjusting the output shaft speed and periodic rotation angle of the driving component 302.

[0031] Please see Figure 1 and Figure 6 In one embodiment of the present invention, the lower part of the first cylinder 2 is provided with a drain outlet 10, and the first cylinder 2 is also provided with a detachable mesh plate 13 for blocking goose down. The mesh plate 13 is located above the second cylinder 4 above the connection between the first cylinder 2 and the second cylinder 4, so as to prevent goose down from entering the second cylinder 4 and being difficult to clean. The first cylinder 2 is symmetrically provided with multiple magnetic support platforms 14. The mesh plate 13 is provided with magnetic suction components 15 that correspond one-to-one with the magnetic support platforms 14 and magnetically engage. The mesh plate 13 is also provided with hand-held components (such as bosses, rods, etc., for operators to hold and pick up the mesh plate 13).

[0032] In this embodiment, before testing, the perforated plate 13 is pre-installed in the first cylinder 2. After testing, the test water is discharged through the drain outlet 10, and the goose down gathers on the perforated plate 13. Then, the perforated plate 13 is pulled upward by the hand to remove it, thereby taking out the goose down and realizing the quick cleaning of the testing device.

[0033] This invention also provides a method for testing the water-repellent properties of water-repellent goose down, using an automatic testing device for the water-repellent properties of water-repellent goose down as described in any of the above technical solutions, comprising the following steps: S1: Inject a standard amount of test water into the first cylinder 2; S2: Weigh the standard weight of the water-repellent goose down to be tested and put it into the first cylinder 2 and start the automatic detection. At this time, the number of photosensitive elements 11 that can sense the light emitted by the light source element 8 is recorded as Q1. S3: The test water is in a disturbed state by performing a disturbance action of standard duration and intensity through the disturbance component 3; S4: After the water surface is still, a certain proportion of water-repellent goose down will be submerged in the water, causing the water level to rise. Under the principle of communicating vessels, the water level in the second cylinder 4 will also rise, which will cause the projection element 7 to move upward. At this time, the number of photosensitive elements 11 that can sense the light emitted by the light source element 8 is recorded as Q2. The water-repellent performance of the measured water-repellent goose down is defined by the difference between Q1 and Q2. The larger the difference, the greater the proportion of the standard amount of water-repellent goose down submerged in the water, that is, the worse the water-repellent performance.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic testing device for the water-repellent properties of water-repellent goose down, comprising a base (1), a first cylinder (2) disposed on the base (1) for holding test water and placing the water-repellent goose down to be tested, and a disturbance component (3) for causing the test water to be in a disturbed state, characterized in that, Also includes: A second cylinder (4) connected to the first cylinder (2); Projection element (7) is installed in the second cylinder (4) and moves up and down with the rise and fall of the water surface; Light source (8) for projection magnification projection component (7); A strip (9) is provided on the base (1) and is positioned opposite the projection element (7) of the light source element (8). Photosensitive elements (11) for sensing the light emitted by the light source element (8) are arranged from top to bottom on the strip (9).

2. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 1, characterized in that, The second cylinder (4) is connected to the first cylinder (2) through a connecting pipe (5), and the connecting pipe (5) is equipped with a shut-off valve (6), which is an electric shut-off valve.

3. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 1, characterized in that, The projection element (7) includes a float (701) and a light-blocking strip (702) disposed on the float (701).

4. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 3, characterized in that, The second cylinder (4) is also provided with a limiting member (12), and the light blocking strip (702) slides up and down through the limiting member (12). The limiting member (12) is used to restrict the light blocking strip (702) to only move vertically up and down.

5. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 1, characterized in that, The photosensitive element (11) is a miniature photoresistor, and the photosensitive elements (11) are arranged closely together.

6. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 1, characterized in that, The disturbance component (3) includes a water-dispersing plate (301) disposed in the first cylinder (2) and a drive member (302) for driving the water-dispersing plate (301) to reciprocate at a set speed and amplitude.

7. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 1, characterized in that, The first cylinder (2) is provided with a drain outlet (10) at the bottom. The first cylinder (2) is also provided with a detachable mesh plate (13) for blocking goose down. The mesh plate (13) is located above the second cylinder (4) above the first cylinder (2).

8. The automatic detection device for the water-repellent performance of water-repellent goose down according to claim 7, characterized in that, The first cylindrical body (2) is symmetrically provided with multiple magnetic support platforms (14), and the mesh plate (13) is provided with magnetic suction components (15) that correspond one-to-one with the magnetic support platforms (14) and magnetically engage. The mesh plate (13) is also provided with a hand-held component.

9. A method for testing the water-repellent properties of water-repellent goose down, comprising using the automatic testing device for the water-repellent properties of water-repellent goose down as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Inject a standard amount of test water into the first cylinder (2); S2: Weigh the standard weight of the water-repellent goose down to be tested and put it into the first cylinder (2) and start the automatic detection. At this time, the number of photosensitive elements (11) that can sense the light emitted by the light source element (8) is recorded as Q1. S3: The test water is in a disturbed state by performing a disturbance action of standard duration and intensity through the disturbance component (3); S4: After the water surface is still, a certain proportion of water-repellent goose down will be submerged in the water, causing the water level to rise. Under the principle of communicating vessels, the water level in the second cylinder (4) will also rise, which will cause the projection component (7) to move upward. At this time, the number of photosensitive components (11) that can sense the light emitted by the light source component (8) is recorded as Q2. The water repellency of the measured water-repellent goose down is defined by the difference between Q1 and Q2. The larger the difference, the larger the proportion of the standard amount of water-repellent goose down submerged in the water, that is, the worse the water repellency.

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