A device and method for testing the cleanliness of down fabrics

Abstract

This invention relates to a device and method for detecting the cleanliness of down fabrics, belonging to the field of down quality testing technology. The cleanliness testing device includes a down washing bottle, a vibration mechanism for driving the down washing bottle in linear reciprocating motion, a water supply mechanism for providing cleaning medium to the down washing bottle, and a turbidity detection mechanism. The down washing bottle includes a bottle body structure composed of an upper bottle body and a lower bottle body, a water outlet on the lower bottle body, a screen located inside the water outlet, a gate valve assembly located outside the lower bottle body, and a limiting assembly. The water outlet is located in the direction of movement of the down washing bottle and is connected to the turbidity detection mechanism. This invention uses a vibration mechanism to oscillate the down sample. With the water outlet located in the direction of movement of the down washing bottle, the cleaning liquid is filtered through the screen by gravity-driven oscillation. The testing device maintains efficient filtration of the cleaning medium and improves detection accuracy.

Description

Technical Field

[0001] This invention belongs to the field of down quality testing technology, specifically relating to a device and method for testing the cleanliness of down fabrics. Background Technology

[0002] Cleanliness of down fabric is a crucial hygiene indicator in the quality inspection of down products. Poorly clean down fabric contains excessive impurities, dust, and free organic matter, which can easily trigger allergic reactions and respiratory diseases, harming human health. Therefore, cleanliness testing devices are needed to measure the cleanliness of down fabric during the production process. Current technology uses the turbidity of the water washing filtrate from a down sample to determine the cleanliness of the down fabric. During testing, a weighed down sample is placed in an Erlenmeyer flask, distilled water is added, and the sample is agitated using a horizontal shaker. After sieving the sample, the filtrate is obtained, and its turbidity is measured using a columnar translucency meter to determine the cleanliness of the down fabric. This sieving process relies on gravity to filter the damp down sample, which is time-consuming. Furthermore, the down sample itself, the Erlenmeyer flask, and the sieve can easily trap impurities on the down, negatively impacting the accuracy of the cleanliness measurement. Summary of the Invention

[0003] The purpose of this invention is to provide a down fabric cleanliness detection device and method that has high filtration efficiency and small cleanliness detection error in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] A down fabric cleanliness testing device includes a down washing bottle, a vibration mechanism for driving the down washing bottle to reciprocate linearly, a water supply mechanism for providing a cleaning medium to the down washing bottle, and a turbidity testing mechanism for measuring the turbidity of the down fabric filtrate.

[0006] The down washing bottle includes a bottle body structure consisting of an upper bottle body and a lower bottle body, a water outlet on the lower bottle body, a screen inside the water outlet, a gate valve assembly on the outside of the lower bottle body, and a limiting assembly. The water outlet is located in the direction of movement of the down washing bottle and is connected to a turbidity detection mechanism. The gate valve assembly is used to control the opening and closing state of the water outlet, and the limiting assembly is used to constrain the gate valve assembly. When detecting the cleanliness of down fabric, a certain amount of down sample is put into the bottle body structure. The cleaning medium is pumped into the bottle body structure through a water supply mechanism. The down washing bottle and the down sample inside the bottle are vibrated by a vibration mechanism to make the down... Impurities in the down sample are transferred to the cleaning medium. After a certain number of vibrations, the outlet is opened by a limiting component in conjunction with a gate valve component. While vibrating, the cleaning solution is filtered out from the sieve by gravity-driven vibration, improving filtration efficiency. The repeated vibration of the down washing bottle also prevents the down sample from clogging the sieve and avoids a decrease in filtration efficiency during the filtration process. After the cleaning medium is filtered out from the outlet, the above operation is repeated. The cleaning medium is added to the bottle structure again and vibrated and sieved to ensure that impurities on the down sample are fully transferred to the cleaning medium, thereby improving the detection accuracy.

[0007] As a further optimization of the present invention, the vibration mechanism includes a lead screw motor, a vibration frame mounted on the output shaft of the lead screw motor, a positioning frame fixed to the top of the vibration frame and used to fix the bottle body structure, and a slide rail located on one side of the lead screw motor and slidingly engaged with the vibration frame. During the vibration of the lint-washing bottle, the lead screw motor drives the vibration frame to reciprocate linearly along the slide rail, thereby causing the vibration frame to drive the positioning frame and the lint-washing bottle to vibrate repeatedly.

[0008] As a further optimization of the present invention, the water supply mechanism includes a water pump, a water tank connected to the water pump inlet, a first water valve connected to the water pump outlet, a flow meter and a controller connected to the bottle body structure. The end of the first water valve away from the water pump is connected to the flow meter. The controller is electrically connected to the flow meter, the water pump, the first water valve and the lead screw motor. During the process of pumping in the cleaning medium, the water pump pumps the cleaning medium in the water tank into the washing bottle. The flow meter and the controller detect the flow rate of the cleaning medium in real time to obtain the pumping amount of the cleaning medium. When the pumping amount reaches the set value, the water pump and the first water valve are turned off.

[0009] As a further optimization of the present invention, the turbidity detection mechanism includes a translucency meter fixed to the front side of the vibrating frame and a second water valve located at the drain outlet at the bottom of the translucency meter. After the vibration sieving is completed, the lead screw motor is turned off, and the turbidity of the filtrate is measured. A crosshair marker is provided on the bottom wall of the translucency meter. When the marker inside the translucency meter is observed to be blurry, the second water valve is opened to drain the filtrate. When the marker inside the translucency meter is clearly visible, the second water valve is closed, and the scale value at the bottom of the meniscus liquid surface on the inner wall of the translucency meter is read. This scale value corresponds to the turbidity of the filtrate and the cleanliness of the down sample.

[0010] As a further optimization of the present invention, the vibration mechanism further includes a mounting platform for fixing the lead screw motor and a support platform fixed to the rear top of the mounting platform. The slide rail is laterally fixed to the top of the mounting platform. The front and rear sides of the vibration frame are respectively provided with two sets of rollers that fit against the mounting platform and the support platform. During the vibration washing of the velvet bottle, the rollers support the vibration frame, reducing the frictional resistance generated during the vibration process.

[0011] As a further optimization of the present invention, the gate valve assembly includes a drive motor fixed to the bottom end of the lower bottle body, a swing frame fixed to the output end of the drive motor, an arc-shaped traction plate fixed to the end of the swing frame, and an arc-shaped gate plate fixed to the end of the traction plate away from the swing frame. The limiting assembly includes a limiting groove located on one side of the outlet and slidingly engaged with the gate plate, and an alignment groove located on the other side of the outlet and corresponding to the gate plate. The traction plate passes through the end of the limiting groove away from the outlet. The controller is electrically connected to the drive motor. When the outlet is opened, the drive motor drives the swing frame to rotate forward. The swing frame opens the gate plate through the traction plate. The gate plate disengages from the alignment groove and retracts into the limiting groove, allowing the cleaning medium in the lower bottle body to filter out impurities from the screen. When the outlet is closed, the drive motor drives the swing frame to rotate in the opposite direction. The swing frame resets the gate plate through the traction plate, thereby closing the outlet.

[0012] As a further optimization of the present invention, the limiting component further includes a slider slidably disposed inside the alignment groove, a spring disposed between the slider and the end of the alignment groove away from the outlet, and a limiting block disposed at the end of the alignment groove near the outlet. The slider has a notch corresponding to the limiting block, and the gate plate has a groove corresponding to the limiting block. Both the limiting groove and the alignment groove are fixed to the outside of the lower bottle body. When the outlet is closed, the gate plate is buffered by the spring and the slider. When the outlet is opened, the limiting block and the notch position the slider, and the slider blocks the alignment groove to prevent the alignment groove from trapping impurities in the filtrate.

[0013] As a further optimization of the present invention, the limiting component also includes a spring block disposed at the end of the limiting groove away from the water outlet and a through hole disposed on the outside of the limiting groove and close to the spring block. When the water outlet is opened, the spring block buffers the gate, and the through hole on the limiting groove is used to adjust the air pressure in the limiting groove to improve the smoothness of the gate's operation.

[0014] As a further optimization of the present invention, the inner diameter of the upper bottle gradually increases from top to bottom, and the inner diameter of the lower bottle gradually decreases from top to bottom. The lower bottle has two opposing water outlets. The washing bottle also includes a flow guide corresponding to each water outlet and a bottle cap rotatably disposed at the top of the upper bottle. The water outlet is connected to a flow meter through the flow guide. The flow meter is fixed to the top of the bottle cap. The flow guide has an inlet end connected to the water outlet and an outlet end connected to the top of the flow meter. The top of the inlet end of the flow guide is fixed to the bottom of the upper bottle, and the bottom of the inlet end of the flow guide is fixed to the bottom of the lower bottle. The front and rear sides of the inlet end of the flow guide are respectively connected to the outer surfaces of the limiting groove and the alignment groove. The upper and lower bottle bodies of the bottle structure and the limiting groove and alignment groove of the limiting component are all seamlessly connected to the flow guide.

[0015] A method for testing the cleanliness of down fabrics includes the following steps:

[0016] S1. Down filling:

[0017] Weigh a quantitative amount of down sample on a balance and put the quantitative amount of down sample into a down washing bottle.

[0018] S2. Water pumping in:

[0019] The cleaning medium in the water tank is pumped into the washing bottle by a water pump. The flow rate of the cleaning medium is detected in real time by a flow meter and a controller to obtain the pumping volume of the cleaning medium. When the pumping volume reaches the set value, the water pump and the first water valve are turned off.

[0020] S3. Vibrating sieve:

[0021] The vibrating frame is driven by a screw motor to reciprocate linearly. The vibrating frame vibrates the washing bottle through the positioning frame, which transfers the impurities on the down sample in the washing bottle to the cleaning medium. When the number of vibrations reaches the set value, the drive motor drives the swing frame to rotate. The swing frame opens the gate through the traction plate, allowing the cleaning medium in the lower bottle to carry the impurities out through the screen. Then the drive motor closes the gate through the swing frame and the traction plate.

[0022] S4. Filtering multiple times:

[0023] Repeat steps S2 and S3 to fully transfer the impurities in the down sample to the cleaning medium. The filtrate obtained from each oscillation and sieving flows from the outlet into the transparency meter.

[0024] S5. Turbidity Detection:

[0025] Turn off the lead screw motor and measure the turbidity of the filtrate. The bottom wall of the translucency meter is equipped with a crosshair marker. When the marker inside the translucency meter is blurred, open the second water valve to discharge the filtrate. When the marker inside the translucency meter is clearly visible, close the second water valve and read the scale value at the bottom of the meniscus liquid level on the inner wall of the translucency meter. This scale value corresponds to the turbidity of the filtrate and the cleanliness of the down sample.

[0026] The beneficial effects of this invention are as follows:

[0027] 1) This invention uses a vibration mechanism to vibrate the washing bottle and the down sample inside the washing bottle, so that the impurities in the down sample are transferred to the cleaning medium. The water outlet is opened by the limiting component and the gate valve component. The water outlet is located in the direction of movement of the washing bottle. The cleaning liquid is filtered out from the screen by the super gravity vibration sieve. The sieve is sieved during the vibration of the washing bottle, which can avoid the down sample clogging the screen and ensure that the cleanliness detection device always maintains efficient filtration of the cleaning medium.

[0028] 2) After the cleaning medium is filtered out from the outlet, the present invention repeats the operation of pumping water in and vibrating sieving, so that the impurities on the down sample are fully transferred to the cleaning medium. During the vibrating sieving process, the down sample is prevented from clogging the screen, while the impurities in the washing bottle are quickly thrown out, preventing the washing bottle and down sample from trapping the impurities and improving the measurement accuracy of the cleanliness of down fabric.

[0029] 3) The inner diameter of the lower bottle body of the present invention gradually decreases from top to bottom, increasing the filtration area and reducing the filtration resistance. When the water outlet is closed, the gate is buffered by the spring and the slider. When the water outlet is opened, the limiting block and the notch make the slider block the alignment groove to prevent the alignment groove from trapping debris. When the water outlet is opened, the gate is buffered by the spring block. The through hole near the spring block is used to adjust the air pressure in the limiting groove, improve the smooth movement of the gate, and thus improve the operational reliability of the detection device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of the lint washing bottle of the present invention;

[0033] Figure 4 The gate valve assembly of the present invention;

[0034] Figure 5This is a top view of the lint washing bottle in the water-sealed state according to the present invention.

[0035] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0036] Figure 7 for Figure 5 Enlarged view at point B in the middle;

[0037] Figure 8 This is a top view of the lint washing bottle in the water-filled state according to the present invention. In the diagram: 1. Washing bottle; 11. Upper bottle body; 12. Lower bottle body; 13. Outlet; 14. Screen; 15. Gate valve assembly; 151. Drive motor; 152. Swing frame; 153. Traction plate; 154. Gate plate; 16. Limiting assembly; 161. Limiting groove; 162. Alignment groove; 163. Slider; 164. Spring; 165. Limiting block; 166. Notch; 167. Elastic block; 168. Through hole; 17. Drainage cover; 18. Bottle cap; 2. Vibration mechanism; 21. Screw motor; 22. Vibration frame; 23. Positioning frame; 24. Slide rail; 25. Mounting platform; 26. Support platform; 27. Roller; 3. Water supply mechanism; 31. Water pump; 32. Water tank; 33. First water valve; 34. Flow meter; 4. Turbidity detection mechanism; 41. Translucency meter; 42. Second water valve. Detailed Implementation

[0038] 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.

[0039] First Embodiment

[0040] like Figure 1As shown, a down fabric cleanliness testing device and method includes a down washing bottle 1, a vibration mechanism 2 for driving the down washing bottle 1 in linear reciprocating motion, a water supply mechanism 3 for providing a cleaning medium to the down washing bottle 1, and a turbidity detection mechanism 4 for measuring the turbidity of the down fabric filtrate. The down washing bottle 1 includes a bottle body structure composed of an upper bottle body 11 and a lower bottle body 12, a water outlet 13 on the lower bottle body 12, a screen 14 inside the water outlet 13, a gate valve assembly 15 on the outside of the lower bottle body 12, and a limiting assembly 16. The water outlet 13 is located in the direction of movement of the down washing bottle 1 and is connected to the turbidity detection mechanism 4. The gate valve assembly 15 is used to control the opening and closing state of the water outlet 13, and the limiting assembly 16 is used to constrain the gate valve assembly 15. When testing the cleanliness of the down fabric, a quantitative down sample is added to the bottle body structure and fed through the water supply mechanism. 3. The cleaning medium is pumped into the bottle structure. The vibration mechanism 2 vibrates the down washing bottle 1 and the down sample inside the down washing bottle 1, so that the impurities in the down sample are transferred to the cleaning medium. After a certain number of vibrations, the outlet 13 is opened by the limit component 16 in conjunction with the gate valve component 15. At the same time as vibration, the cleaning liquid is filtered out from the screen 14 by gravity vibration and sieving. Vibration and sieving are carried out simultaneously, which reduces the filtration time and improves the filtration efficiency. When the down washing bottle 1 is repeatedly vibrated, the down sample can also be prevented from clogging the screen 14, preventing the filtration efficiency from decreasing during the filtration process. After the cleaning medium is filtered out from the outlet 13, the above operation is repeated. The cleaning medium is added to the bottle structure again and vibrated and sieved, so that the impurities on the down sample are fully transferred to the cleaning medium, thereby improving the detection accuracy.

[0041] like Figure 2 As shown, the water supply mechanism 3 includes a water pump 31, a water tank 32 connected to the inlet of the water pump 31, a first water valve 33 connected to the outlet of the water pump 31, a flow meter 34 connected to the bottle body structure, and a controller. The end of the first water valve 33 away from the water pump 31 is connected to the flow meter 34. The controller is electrically connected to the flow meter 34, the water pump 31, the first water valve 33, and the lead screw motor 21. During the process of pumping in the cleaning medium, the water pump 31 pumps the cleaning medium in the water tank 32 into the washing bottle 1. The flow meter 34, in conjunction with the controller, detects the flow rate of the cleaning medium in real time, thereby obtaining the pumping amount of the cleaning medium. When the pumping amount reaches the set value, the water pump 31 and the first water valve 33 are shut off.

[0042] like Figure 2As shown, the vibration mechanism 2 includes a lead screw motor 21, a vibration frame 22 mounted on the output shaft of the lead screw motor 21, a positioning frame 23 fixed to the top of the vibration frame 22 and used to fix the bottle body structure, and a slide rail 24 located on one side of the lead screw motor 21 and slidingly engaged with the vibration frame 22. During the vibration of the lint-washing bottle 1, the lead screw motor 21 drives the vibration frame 22 to reciprocate linearly along the slide rail 24, thereby causing the vibration frame 22 to drive the positioning frame 23 and the lint-washing bottle 1 to vibrate repeatedly.

[0043] Furthermore, the vibration mechanism 2 also includes a mounting platform 25 for fixing the lead screw motor 21 and a support platform 26 fixed to the rear top of the mounting platform 25. The slide rail 24 is horizontally fixed to the top of the mounting platform 25. The vibration frame 22 is provided with two sets of rollers 27 on the front and rear sides respectively, which are in contact with the mounting platform 25 and the support platform 26. Specifically, the vibration frame 22 consists of a vertical plate and two horizontal plates fixed to the upper and lower ends of the vertical plate respectively. Rollers 27 are provided at the bottom of the two horizontal plates. The bottom plate of the mounting platform 25 and the top plate of the support platform 26 are in contact with the rollers 27 at the bottom of the two horizontal plates respectively. During the vibration washing of the velvet bottle 1, the vibration frame 22 is supported by the two sets of rollers 27 to reduce the frictional resistance generated during the vibration.

[0044] like Figure 2-4 As shown, the gate valve assembly 15 includes a drive motor 151 fixed to the bottom of the lower bottle body 12, a swing bracket 152 fixed to the output end of the drive motor 151, an arc-shaped traction plate 153 fixed to the end of the swing bracket 152, and an arc-shaped gate plate 154 fixed to the end of the traction plate 153 away from the swing bracket 152. The limiting assembly 16 includes a limiting groove 161 located on one side of the outlet 13 and slidingly engaged with the gate plate 154, and an alignment groove 162 located on the other side of the outlet 13 and corresponding to the gate plate 154. The traction plate 153 passes through the end of the limiting groove 161 away from the outlet 13. The gate plate 154 has a rigid shaping material inside. The frame has a water-stop layer on the end face of the gate 154 near the bottle body structure. The controller is electrically connected to the drive motor 151. When the outlet 13 is opened, the drive motor 151 drives the swing frame 152 to rotate in the forward direction. The swing frame 152 opens the gate 154 through the traction plate 153. The gate 154 disengages from the alignment groove 162 and is put into the limiting groove 161, so that the cleaning medium in the lower bottle body 12 carries the impurities and is filtered out from the screen 14. When the outlet 13 is closed, the drive motor 151 drives the swing frame 152 to rotate in the reverse direction. The swing frame 152 resets the gate 154 through the traction plate 153, thereby closing the outlet 13.

[0045] like Figure 5-8As shown, the limiting assembly 16 also includes a slider 163 slidably disposed inside the alignment groove 162, a spring 164 disposed between the slider 163 and the end of the alignment groove 162 away from the outlet 13, and a limiting block 165 disposed at the end of the alignment groove 162 near the outlet 13. The slider 163 is provided with a notch 166 corresponding to the limiting block 165, and the gate 154 is provided with a groove corresponding to the limiting block 165. The limiting groove 161 and the alignment groove 162 are both fixed to the outside of the lower bottle body 12. When the outlet 13 is closed, the spring 164 cooperates with the slider 163 to buffer the gate 154. When the outlet 13 is opened, the limiting block 165 cooperates with the notch 166 to position the slider 163. The slider 163 blocks the alignment groove 162 to prevent the alignment groove 162 from trapping impurities in the filtrate.

[0046] Furthermore, the limiting assembly 16 also includes a spring block 167 located at the end of the limiting groove 161 away from the outlet 13 and a through hole 168 located outside the limiting groove 161 and close to the spring block 167. When the outlet 13 is opened, the spring block 167 buffers the gate 154, and the through hole 168 on the limiting groove 161 is used to adjust the air pressure in the limiting groove 161, thereby improving the smoothness of the gate 154 when it operates.

[0047] like Figure 2 As shown, the turbidity detection mechanism 4 includes a translucency meter 41 fixed to the front of the vibrating frame 22 and a second water valve 42 located at the drain outlet at the bottom of the translucency meter 41. After the vibration sieving is completed, the screw motor 21 is turned off, and the turbidity of the filtrate is measured. A crosshair marker is provided on the bottom wall of the translucency meter 41. When the marker inside the translucency meter 41 is observed to be blurry, the second water valve 42 is opened to discharge the filtrate. When the marker inside the translucency meter 41 is clearly visible, the second water valve 42 is closed, and the scale value at the bottom of the meniscus liquid surface on the inner wall of the translucency meter 41 is read. The read scale value is the cleanliness of the down fabric.

[0048] Furthermore, the inner diameter of the upper bottle 11 gradually increases from top to bottom, while the inner diameter of the lower bottle 12 gradually decreases from top to bottom, increasing the filtration area and reducing filtration resistance. The lower bottle 12 has two opposing water outlets 13. The washing bottle 1 also includes a flow guide 17 corresponding to each water outlet 13 and a bottle cap 18 rotatably mounted on the top of the upper bottle 11. The water outlets 13 are connected to the transparent meter 41 through the flow guide 17. The flow meter 34 is fixed to the top of the bottle cap 18. The flow guide 17 has an inlet end connected to the water outlet 13 and an outlet connected to the transparent meter 41. The top of the water outlet of the 41 is connected to the bottom of the upper bottle body 11, and the bottom of the water inlet of the 17 is fixed to the bottom of the lower bottle body 12. The front and rear sides of the water inlet of the 17 are connected to the outer surfaces of the limiting groove 161 and the alignment groove 162, respectively. The upper bottle body 11 and the lower bottle body 12 of the bottle body structure, as well as the limiting groove 161 and the alignment groove 162 of the limiting component 16, are all seamlessly connected to the 17. During the sieving process, the cleaning medium carrying impurities is introduced into the transparency meter 41 through the 17.

[0049] Second Embodiment

[0050] A method for detecting the cleanliness of down fabrics, applied to a down fabric cleanliness detection device, includes the following steps:

[0051] S1. Down filling:

[0052] Weigh a quantitative amount of down sample on a balance and put the quantitative amount of down sample into a down washing bottle 1. Specifically, weigh 10g of down sample.

[0053] S2. Water pumping in:

[0054] The cleaning medium in the water tank 32 is pumped into the washing bottle 1 by the water pump 31. The flow rate of the cleaning medium is detected in real time by the flow meter 34 in conjunction with the controller, so as to obtain the pumping volume of the cleaning medium. When the pumping volume reaches the set value, the water pump 31 and the first water valve 33 are turned off. The cleaning medium is preferably distilled water, and the set value of the pumping volume is 1000mL.

[0055] S3. Vibrating sieve:

[0056] The vibrating frame 22 is driven by the lead screw motor 21 to reciprocate linearly. The vibrating frame 22 vibrates the down washing bottle 1 through the positioning frame 23, so that the impurities on the down sample in the down washing bottle 1 are transferred to the cleaning medium. When the number of vibrations reaches the set value, the swing frame 152 is driven to rotate by the drive motor 151. The swing frame 152 opens the gate 154 through the traction plate 153, so that the cleaning medium in the lower bottle 12 carries the impurities and filters them out through the screen 14. Specifically, the gate 154 is opened after 1000 vibrations. After the number of vibrations reaches 1500, the drive motor 151 closes the gate 154 through the swing frame 152 and the traction plate 153.

[0057] S4. Filtering multiple times:

[0058] Repeat steps S2 and S3 to fully transfer the impurities in the down sample to the cleaning medium. Each time the filtrate obtained from the oscillation and sieving is passed, it flows from the outlet 13 into the transparency meter 41. The number of times the water is pumped in and the oscillation and sieving are performed is preferably 3.

[0059] S5. Turbidity Detection:

[0060] Turn off the lead screw motor 21 and measure the turbidity of the filtrate. A crosshair marker is provided on the bottom wall of the transparency meter 41. When the marker inside the transparency meter 41 is blurred, open the second water valve 42 to discharge the filtrate. When the marker inside the transparency meter 41 is clearly visible, close the second water valve 42 and read the scale value at the bottom of the meniscus on the inner wall of the transparency meter 41. This scale value corresponds to the turbidity of the filtrate and the cleanliness of the down sample. The above embodiments only illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A down fabric cleanliness testing device, comprising a down washing bottle (1), a vibration mechanism (2) for driving the down washing bottle (1) to reciprocate linearly, a water supply mechanism (3) for providing a cleaning medium to the down washing bottle (1), and a turbidity testing mechanism (4) for measuring the turbidity of the down fabric filtrate. characterized in that The lint washing bottle (1) includes a bottle body structure consisting of an upper bottle body (11) and a lower bottle body (12), a water outlet (13) on the lower bottle body (12), a screen (14) inside the water outlet (13), a gate valve assembly (15) on the outside of the lower bottle body (12), and a limiting assembly (16). The water outlet (13) is located in the direction of movement of the lint washing bottle (1) and is connected to the turbidity detection mechanism (4). The gate valve assembly (15) is used to control the opening and closing state of the water outlet (13), and the limiting assembly (16) is used to constrain the gate valve assembly (15). The vibration mechanism (2) includes a lead screw motor (21), a vibration frame (22) mounted on the output shaft of the lead screw motor (21), a positioning frame (23) fixed to the top of the vibration frame (22) and used to fix the bottle body structure, and a slide rail (24) located on one side of the lead screw motor (21) and slidingly engaged with the vibration frame (22). The water supply mechanism (3) includes a water pump (31), a water tank (32) connected to the inlet of the water pump (31), a first water valve (33) connected to the outlet of the water pump (31), a flow meter (34) connected to the bottle body structure, and a controller. The first water valve (33) is connected to the flow meter (34). The turbidity detection mechanism (4) includes a translucency meter (41) fixed to the front side of the vibration frame (22) and a second water valve (42) located at the bottom drain of the translucency meter (41). The gate valve assembly (15) includes a drive motor (151) fixed to the bottom of the lower bottle body (12), a swing frame (152) fixed to the output end of the drive motor (151), a traction plate (153) fixed to the end of the swing frame (152), and a gate plate (154) fixed to the end of the traction plate (153) away from the swing frame (152). The limiting assembly (16) includes a limiting groove (161) located on one side of the outlet (13) and slidingly engaged with the gate plate (154), and an alignment groove (162) located on the other side of the outlet (13) and corresponding to the gate plate (154). The traction plate (153) passes through the limiting groove (161).

2. The cleanliness detection apparatus according to claim 1, characterized by: The vibration mechanism (2) also includes a mounting platform (25) for fixing the screw motor (21) and a support platform (26) fixed at the rear top of the mounting platform (25). The vibration frame (22) is provided with two sets of rollers (27) on the front and rear sides respectively, which fit against the mounting platform (25) and the support platform (26).

3. The cleanliness detection device according to claim 1, characterized in that: The limiting component (16) further includes a slider (163) slidably disposed inside the alignment groove (162), a spring (164) disposed between the slider (163) and the end of the alignment groove (162) away from the outlet (13), and a limiting block (165) disposed at the end of the alignment groove (162) near the outlet (13). The slider (163) is provided with a notch (166) corresponding to the limiting block (165).

4. The cleanliness detection device according to claim 1, characterized in that: The limiting component (16) also includes a spring block (167) located at the end of the limiting groove (161) away from the outlet (13) and a through hole (168) located outside the limiting groove (161) and close to the spring block (167).

5. The cleanliness detection device according to any one of claims 1-4, characterized in that: The inner diameter of the upper bottle (11) gradually increases from top to bottom, and the inner diameter of the lower bottle (12) gradually decreases from top to bottom. The lower bottle (12) has two opposing water outlets (13). The washing bottle (1) also includes a flow guide (17) corresponding to the water outlet (13) and a bottle cap (18) rotatably located at the top of the upper bottle (11). The water outlet (13) is connected to the transparent meter (41) through the flow guide (17). The flow meter (34) is fixed at the top of the bottle cap (18).

6. A method for testing the cleanliness of down fabrics, characterized in that: The cleanliness detection device according to claim 5 is applied to the following steps: S1. Down filling: Weigh a quantitative amount of down sample on a balance and put the quantitative amount of down sample into a down washing bottle (1); S2. Water pumping in: The cleaning medium in the water tank (32) is pumped into the washing bottle (1) by the water pump (31). The flow rate of the cleaning medium is detected in real time by the flow meter (34) in conjunction with the controller, so as to obtain the pumping amount of the cleaning medium. When the pumping amount reaches the set value, the water pump (31) and the first water valve (33) are closed. S3. Vibrating sieve: The vibrating frame (22) is driven by the screw motor (21) to reciprocate linearly. The vibrating frame (22) vibrates the down washing bottle (1) through the positioning frame (23), so that the impurities on the down sample in the down washing bottle (1) are transferred to the cleaning medium. When the number of vibrations reaches the set value, the swing frame (152) is driven to rotate by the drive motor (151). The swing frame (152) opens the gate (154) through the traction plate (153), so that the cleaning medium in the lower bottle (12) carries the impurities and filters them out from the screen (14). Then the drive motor (151) closes the gate (154) through the swing frame (152) and the traction plate (153). S4. Filtering multiple times: Repeat steps S2 and S3 to fully transfer the impurities in the down sample to the cleaning medium. Each time the filtrate obtained from the shaking and sieving is passed, it flows from the outlet (13) into the transparency meter (41). S5. Turbidity Detection: Turn off the screw motor (21) and measure the turbidity of the filtrate. A crosshair marker is provided on the bottom wall of the translucency meter (41). When the marker inside the translucency meter (41) is observed to be blurry, open the second water valve (42) to discharge the filtrate. When the marker inside the translucency meter (41) is clearly visible, close the second water valve (42) and read the scale value at the bottom of the meniscus liquid surface on the inner wall of the translucency meter (41). This scale value corresponds to the turbidity of the filtrate and the cleanliness of the down sample.

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