Method and equipment for detecting washing resistance of warm keeping effect of down feather

Abstract

The invention relates to the technical field of down feather performance detection, and provides a washing resistance detection method and device for down feather warm-keeping effect, and the device comprises a determination box and a fan assembly which is arranged on one side of the determination box and is used for generating transverse airflow; a plurality of grading areas used for collecting down feathers with different filling power grades are arranged in the measuring box in the transverse airflow direction, and weighing assemblies are arranged in the grading areas; the fan assembly generates transverse airflow with set strength so as to carry out winnowing measurement on down feather, the weighing assembly weighs the down feather collected in the corresponding grading area so as to obtain the proportion of the down feather with different filling power grades before washing, and bending and breakage caused to the down feather in the washing process directly affect the winnowing measurement result. By measuring the proportion change of the down feathers with different filling power grades before and after the down feathers are washed, the washing resistance of the down feather warm-keeping effect can be accurately and reliably reflected.

Description

Technical Field

[0001] This invention relates to the field of down performance testing technology, specifically a method and equipment for testing the washability of down's warmth retention effect. Background Technology

[0002] Down, as a natural high-grade insulating material, relies primarily on the amount of still air locked in by the three-dimensional spatial structure formed by the down fibers. This performance is usually quantified by the "loft" index. The higher the loft, the stronger its ability to store air and the better its insulating effect.

[0003] Currently, the industry commonly uses the change in loft of down before and after washing to reflect the durability of its warmth retention. The specific steps are as follows: a standard mass of down sample is placed in a special measuring cylinder, and then a standard area metal plate is placed on top of the down. A standardized constant pressure is applied, and the volume of the down after compression is read. The change in volume of the down under a specific pressure before and after washing (based on this volume to determine loft) reflects its washability and warmth retention performance. However, during the washing process, the down is prone to irreversible bending and deformation under mechanical force, forming a support structure. For example, the ends of broken down fibers produce a support effect similar to a bracket due to structural reconstruction. In the loft test, this actually increases the volume reading, resulting in an artificially high loft test value, which cannot accurately and reliably reflect the washability and warmth retention of the down.

[0004] Therefore, this invention proposes a method and equipment for testing the washability of down's warmth retention effect to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a method and equipment for testing the washability of down insulation to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A test device for the washability of down insulation includes a testing chamber and a fan assembly located on one side of the testing chamber for generating a transverse airflow. The testing chamber has multiple grading zones arranged along the transverse airflow direction for collecting down of different fill power grades. Each grading zone is equipped with a weighing assembly for weighing the collected down. The change in the proportion of down of different fill power grades before and after washing reflects the washability of the down insulation effect.

[0007] In one alternative: a suitable lint hopper is detachably inserted into the grading zone, and the weight of the lint hopper falls on the corresponding weighing component.

[0008] In one alternative: the testing device further includes a dispersion component for causing down to disperse and fall from the upper part of the testing chamber.

[0009] In one alternative embodiment: the dispersion assembly includes a first channel that is horizontally slidably disposed on the measuring box and connected to the measuring box at its lower end, and a second channel disposed in the first channel. The inner side of the second channel is provided with multiple layers of vibrating elements from top to bottom for vibrating down to disperse it. The vibrating elements are composed of multiple elastic ropes arranged in parallel with gaps, and the elastic ropes in adjacent layers of vibrating elements are staggered. The dispersion assembly also includes several telescopic elements for driving the first channel to slide back and forth, and a tumbling element for causing the second channel to tumble during the back and forth sliding of the first channel.

[0010] In one alternative: the measuring box is symmetrically provided with a plurality of first sliding grooves, and the first channel is provided with a first protrusion that is slidably engaged in the first sliding groove.

[0011] In one alternative: the agitation component includes a support member disposed on the measuring box and located on both sides of the first channel. Both sides of the first channel are provided with a second sliding groove running vertically. The second channel is provided with a second protrusion that is slidably engaged in the second sliding groove. The support member is provided with a plurality of protrusions arranged along the reciprocating sliding path of the first channel. The second protrusion is provided with a roller for rotatably contacting the protrusion.

[0012] In one alternative: the lower end of the first channel is open and is narrow and elongated.

[0013] In one alternative embodiment: the detection device further includes a dust removal assembly for removing dust adhering to the down feathers. The dust removal assembly includes multiple dust suction components interspersed between multiple vibrating components and a closed-loop cavity located inside the side wall of the second channel. The dust suction components are composed of multiple tubes arranged in parallel with gaps, and the tube walls are evenly distributed with dust suction holes. Both ends of the tubes are connected to the cavity. The dust removal assembly also includes a dust suction fan for generating negative pressure in the cavity and a dust collection box for collecting the dust collected.

[0014] A method for testing the wash resistance of down insulation, using any one of the above-mentioned technical solutions, comprising the following steps: S1: Weigh the standard weight of the down feather to be tested; S2: The weighed down is evenly placed into the measuring box. The fan assembly generates a cross airflow of a set intensity to perform air separation measurement on the down. After all the down has been placed and fallen to the ground, the weighing assembly weighs the down collected in the corresponding grading area to obtain the percentage of down of different loft grades before washing. S3: Remove the down feathers from the grading area and perform the standard number of washes and dries according to the standard procedure; S4: Repeat step S2 after washing the down. The change in the proportion of down with different loft grades before and after washing reflects the water resistance of the down's warmth retention effect.

[0015] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: The down is air-separated by generating a cross-flow of a set intensity using a fan assembly. The down collected in the corresponding grading zone is weighed by a weighing assembly to determine the percentage of down of different loft grades before washing. The down is then removed from the grading zone and washed and dried a standard number of times according to a standard procedure. After the washing process is completed, the percentage of down of different loft grades is measured again. The bending and breakage of the down during the washing process directly affects the air-separation measurement results. By measuring the change in the percentage of down of different loft grades before and after washing, the washability of the down's warmth retention effect can be accurately and reliably reflected.

[0016] 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

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0019] Figure 2 This is a front view of an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of the second channel in an embodiment of the present invention.

[0021] Figure 4 This is a partial structural schematic diagram of the distributed component in an embodiment of the present invention.

[0022] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0023] Figure 6 for Figure 1 Enlarged view of section B in the middle.

[0024] Figure label annotations: 1-Measuring box, 2-Fan assembly, 3-Grading zone, 4-Falling hopper, 5-Weighing assembly, 6-Dispersion assembly, 601-First channel, 602-Second channel, 603-Vibrating component, 604-First chute, 605-First boss, 606-Second chute, 607-Second boss, 608-Roller, 609-Bearing component, 610-Protrusion, 611-Telescopic component, 7-Chip removal assembly, 701-Chip suction component, 702-Cavity, 703-Chip suction fan, 704-Chip collection box, 705-Chip suction hole, 706-Filter plate, 8-Display and control panel. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1 and Figure 2 A test device for the water resistance of down insulation effect includes a test chamber 1 and a fan assembly 2 located on one side of the test chamber 1 for generating a transverse airflow. The test chamber 1 has multiple grading zones 3 arranged along the transverse airflow direction for collecting down of different loft grades. Each grading zone 3 is equipped with a weighing assembly 5 for weighing the collected down. The water resistance of the down insulation effect is reflected by measuring the change in the proportion of down of different loft grades before and after washing.

[0027] It should be noted that the fan assembly 2 includes a fan, a rectifier grid, etc., and the weighing assembly 5 includes a load-bearing and force transmission module, a sensor module, a signal feedback processing module, and an execution module, etc., which are existing technologies and will not be described in detail here.

[0028] First, a standard weight of down to be tested is weighed and then evenly distributed into the testing chamber 1. A cross-flow of a set intensity is generated by the fan assembly 2 to perform wind separation testing on the down. Under the action of a specific wind force, down with higher loft (i.e., higher loft grade) can fly a longer distance, while down with lower loft (i.e., lower loft grade) flies a shorter distance, thus falling into different grading zones 3. After all the down has been distributed and fully settled, the down collected in the corresponding grading zone 3 is weighed using the weighing assembly 5 to determine the proportion of down with different loft grades before washing. Then, the down is removed from the grading zone 3 and subjected to a standard number of washes and dryers according to the standard procedure. After the washing process is completed, the proportion of down with different loft grades is measured again. The bending and breakage of down during the washing process directly affects the results of the air separation test. For example, down with a high fill power grade may be damaged and downgraded during the washing process. By measuring the change in the proportion of down with different fill power grades before and after washing, the water resistance of the down's warmth retention effect can be accurately and reliably reflected. For example, the grading area 3 is set to four levels, A, B, C, and D, which are located from the airflow generation end of the fan component 2 from far to near. Before washing, the proportions of the four levels A, B, C, and D of the down are 60%, 20%, 15%, and 5%, respectively. The higher the proportion of down with a higher fill power grade, the better the warmth retention effect of the down. After washing, the proportions change to 50%, 20%, 20%, and 10%, respectively. The change in proportion reflects the water resistance of the down's warmth retention effect.

[0029] Furthermore, the measuring chamber 1 is equipped with a display and control panel 8, on which the measured percentage data is displayed.

[0030] Furthermore, a suitable down hopper 4 is detachably inserted into the grading zone 3, and the weight of the down hopper 4 falls on the corresponding weighing component 5. The upper side of the down hopper 4 is open, and its cooperation with the grading zone 3 is similar to that of a drawer. The down falls into the down hopper 4, and the down can be quickly and easily taken out.

[0031] Please see Figure 1 , Figures 3-6 In one embodiment of the present invention, the detection device further includes a dispersion component 6 for causing down to disperse and fall from the upper part of the measuring chamber 1; The dispersion component 6 includes a first channel 601 that is horizontally slidably disposed on the measuring box 1 and connected to the measuring box 1 at its lower end, and a second channel 602 disposed in the first channel 601. The inner side of the second channel 602 is provided with multiple layers of vibrating elements 603 from top to bottom for vibrating down to disperse it. The vibrating elements 603 are composed of multiple elastic ropes (such as rubber elastic ropes, latex elastic ropes, etc.) arranged in parallel with gaps, and the elastic ropes in adjacent layers of vibrating elements 603 are staggered. The dispersion component 6 also includes several telescopic elements 611 (the telescopic elements 611 are electric telescopic rods, telescopic cylinders, etc. in the prior art) for driving the first channel 601 to slide back and forth, and a tumbling component for causing the second channel 602 to tumble during the reciprocating sliding of the first channel 601. The measuring box 1 is symmetrically provided with a plurality of first sliding grooves 604, and the first channel 601 is provided with a first protrusion 605 that is slidably engaged in the first sliding groove 604. The agitation component includes a support member 609 disposed on the measuring box 1 and located on both sides of the first channel 601. The first channel 601 has a second sliding groove 606 running vertically on both sides. The second channel 602 has a second boss 607 that is slidably engaged in the second sliding groove 606. The support member 609 has a plurality of protrusions 610 arranged along the reciprocating sliding path of the first channel 601. The second boss 607 has a roller 608 rotatably disposed on it for abutting against the protrusions 610.

[0032] In this embodiment, the purpose of setting the dispersing component 6 is to avoid down clumping affecting the wind separation measurement. Specifically, down is evenly distributed into the first channel 601. The distributed down will enter the second channel 602 and fall onto the dispersing net 603. During this process, the telescopic component 611 reciprocates, causing the first channel 601 to slide horizontally back and forth, which in turn causes the second channel 602 to move back and forth accordingly. During this reciprocating movement, the roller 608 and the protrusion 610 repeatedly collide, so that the second channel 602 is still in a turbulent state, that is, the elastic rope is in a high-frequency vibration state, so that the down is shaken and dispersed during the falling process, and finally falls into the measuring box 1 through the lower end of the first channel 601 for wind separation measurement.

[0033] Furthermore, in this embodiment, the lower opening of the first channel 601 is narrow and elongated, so that the down falls into the measuring box 1 in a curtain-like manner, so that it can be fully blown by the lateral airflow, ensuring the accuracy of the air separation measurement.

[0034] Based on the previous embodiment, please refer to Figures 1-3 and Figure 6In one embodiment of the present invention, the detection device further includes a dust removal component 7 for removing dust adhering to the down feathers. The dust removal component 7 includes multiple dust suction components 701 interlaced between multiple vibrating components 603 and a closed-loop cavity 702 located inside the side wall of the second channel 602 (i.e., the cavity 702 is arranged along the side wall of the second channel 602). The dust suction component 701 is composed of multiple tubes arranged in parallel with gaps, and dust suction holes 705 are evenly distributed on the tube wall. Both ends of the tubes are connected to the cavity 702. The dust removal component 7 also includes a dust suction fan 703 for generating negative pressure in the cavity 702 (the suction end of the dust suction fan 703 is connected to the cavity 702 through a flexible tube, and the first channel 601 is provided with a through groove for flexible tube movement) and a dust collection box 704 for collecting the dust collected.

[0035] In this embodiment, because down, due to its natural fiber structure, easily adheres to dust, lint, and other debris through electrostatic and physical adhesion, the weight of the down increases, affecting the accurate air-separation measurement of down loft. The high-frequency vibration of the elastic rope disperses the down while the vibration effect also causes the dust, lint, and other debris adhering to the down to fall off (since it is dry down, the dust adhesion is low). The negative pressure adsorption generated by the dust suction fan 703 adsorbs the dust, achieving the purpose of removing the dust adhering to the down and ensuring the accurate air-separation measurement of down loft.

[0036] Furthermore, in this embodiment, the dust collection hole 705 is also provided with a filter sheet 706 for filtering down to prevent down from being sucked in.

[0037] This invention also provides a method for testing the washability of down insulation, using any of the above-described technical solutions, comprising the following steps: S1: Weigh the standard weight of the down feather to be tested; S2: The weighed down is evenly placed into the measuring box 1. The fan assembly 2 generates a cross airflow of a set intensity to perform air separation measurement on the down. After all the down has been placed and fallen sufficiently, the weighing assembly 5 weighs the down collected in the corresponding grading area 3 to obtain the percentage of down of different loft grades before washing. S3: Remove the down feathers from grading zone 3 and perform the standard number of washes and dries according to the standard procedure; S4: Repeat step S2 after washing the down. The change in the proportion of down with different loft grades before and after washing reflects the water resistance of the down's warmth retention effect.

[0038] 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. A device for detecting the washing resistance of a down thermal effect, characterized by, The utility model provides a kind of detection equipment for testing the water-washing resistance of down, including determination box (1) and fan assembly (2) for generating transverse airflow in determination box (1) side, a plurality of grading zones (3) for collecting different loft grades of down are arranged in the direction of transverse airflow in the determination box (1), and grading zone (3) is equipped with the weighing assembly (5) for weighing the collected down, the water-washing resistance of down is reflected by determining the change of different loft grades of down proportion before and after washing of the measured down.

2. The device for detecting the washing resistance of the warmth retention effect of down according to claim 1, characterized by The grading zone (3) is detachably inserted with the matching down shedding bucket (4), and the weight of the down shedding bucket (4) falls on the corresponding weighing assembly (5).

3. The device for detecting the washing resistance of the warmth retention effect of down according to claim 1, characterized in that, The detection equipment further includes a dispersion assembly (6) for causing the down to be dispersed and fall from the determination box (1).

4. The device for detecting the wash resistance of the warmth retention effect of down according to claim 3, characterized by, The dispersion assembly (6) includes a first channel (601) horizontally slidingly arranged on the determination box (1) and communicating with the determination box (1) at the lower end, and a second channel (602) arranged in the first channel (601), a plurality of layers of beating pieces (603) for beating the down to promote its dispersion are arranged from top to bottom inside the second channel (602), the beating pieces (603) are composed of a plurality of elastic ropes arranged in parallel with gaps, and the elastic ropes in adjacent two layers of beating pieces (603) are arranged alternately, the dispersion assembly (6) further includes a plurality of extension pieces (611) for driving the first channel (601) to reciprocally slide, and a shaking component for shaking the second channel (602) during the reciprocating sliding of the first channel (601).

5. The device for detecting the washability of the warmth retention effect of down according to claim 4, wherein A plurality of first sliding grooves (604) are symmetrically arranged on the determination box (1), and the first channel (601) is provided with a first boss (605) slidingly arranged in the first sliding groove (604).

6. The device for detecting the wash resistance of the warmth retention effect of down according to claim 4, wherein The shaking component includes a bearing piece (609) arranged on the determination box (1) and respectively located on both sides of the first channel (601), a second sliding groove (606) extending upward and downward is arranged on each side of the first channel (601), a second boss (607) slidingly arranged in the second sliding groove (606) is arranged on the second channel (602), a plurality of protrusions (610) are arranged on the bearing piece (609) along the reciprocating sliding path of the first channel (601), and a roller (608) for abutting against the protrusions (610) is rotatably arranged on the second boss (607).

7. The device for detecting the wash resistance of the warmth retention effect of down according to claim 4, characterized by The first channel (601) is open at the lower end and is long and narrow.

8. The device for detecting the wash resistance of the warmth retention effect of down according to claim 4, characterized by, The detection equipment further includes a dust removal assembly (7) for sucking and removing dust adhered to the down, the dust removal assembly (7) includes a plurality of layers of dust suction pieces (701) penetratingly arranged between the plurality of layers of beating pieces (603), and a cavity (702) in the form of a closed loop arranged in the inner wall of the second channel (602), the dust suction pieces (701) are composed of a plurality of pipes arranged in parallel with gaps, and the pipe walls of the pipes are uniformly provided with dust suction holes (705), the two ends of the pipes are in communication with the cavity (702), the dust removal assembly (7) further includes a dust suction fan (703) for generating negative pressure in the cavity (702), and a dust collection box (704) for collecting the sucked dust.

9. A method for detecting the washing resistance of the thermal retention effect of down, using the device for detecting the washing resistance of the thermal retention effect of down according to any one of claims 1 to 8, characterized in that, The utility model includes the following steps: S1: take the standard weight of the to-be-tested down; S2: evenly put the weighed down into the measuring box (1), generate a transverse airflow of a set intensity through the fan assembly (2) to conduct wind selection measurement on the down, after all the down is put in and fully falls, weigh the down collected in the corresponding grading area (3) through the weighing assembly (5) to obtain the proportion of down of different loft grades before water washing; S3: take the down from the grading area (3) and conduct standard number of water washing and drying operations according to a standard procedure; S4: repeat step S2 for the down after water washing, and reflect the water washing resistance of the down warmth-keeping effect through the change of the proportion of down of different loft grades before and after water washing of the measured down.

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