Down-proof testing device and method for down jacket fabric

Abstract

The invention relates to the technical field of down jacket fabric testing, and provides a down jacket fabric down-proof testing device and method.The down jacket fabric down-proof testing device comprises a shell and a plurality of detection units arranged on the shell in the circumferential direction, each detection unit comprises a down feather cavity and an air inflation cavity, and a testing opening is formed in the side, facing the exterior of the shell, of each down feather cavity; a positioning assembly is arranged in the testing opening, a matched net-shaped plate is arranged in the down feather cavity, a sealing piston is arranged in the air inflation cavity, and the testing device further comprises a driving assembly used for driving the sealing piston and the net-shaped plate to move in a reciprocating mode in the direction of the testing opening. The multiple detection units can synchronously test multiple down jacket fabric samples, so that the multiple down jacket fabric samples can be rapidly tested, force is applied to the inner side of the tested down jacket fabric to promote down to impact the fabric, no object is in contact with the outer side of the fabric, and the down is prevented from getting out of the fabric. And accurate and real feedback of the down drilling performance of the down jacket fabric is ensured.

Description

Technical Field

[0001] This invention relates to the field of down jacket fabric testing technology, specifically a down jacket fabric down leakage prevention testing device and method. Background Technology

[0002] In the field of down jacket fabric down-proof testing, the impact method is widely used in the industry to simulate and evaluate the down-proof performance of the fabric. The standardized operating procedure of this method is typically as follows: First, the fabric to be tested is cut to a specified size and sewn into a standard sample bag. Then, a specified mass of down sample is filled into the bag and sealed to form a complete test unit. Finally, the test unit is placed between the fixed platform and the impact head of the impact testing machine. During the test, the drive mechanism drives the impact head to repeatedly and regularly impact the sample bag, simulating the physical process of the down inside the down jacket impacting the inner side of the fabric instantaneously and violently under the action of airflow and impact force due to body movement during actual wear and dynamic activities. After a certain number of impacts, the weight or number of down feathers that escape from the sample bag are counted to determine the down-proof performance. Quantitative evaluation of the down-proof rating of fabrics is necessary; however, the sample bag is laid flat and constrained between a fixed platform and an impact head. When the impact head acts on the sample bag, the fabric in the impacted area comes into close contact with the fixed platform and the impact head below, significantly blocking the down and inhibiting its escape. This results in the measured down leakage amount often being lower than the actual down leakage amount in use, thus affecting the accuracy of the measurement data and the objective evaluation of the actual down-proof performance of the product. Furthermore, in order to obtain statistically significant test results that exclude randomness, it is often necessary to repeat the test on multiple samples (such as four or five) for the same fabric. However, existing testing devices can only test one down jacket fabric sample at a time, and can only adopt a sequential operation method, resulting in a long testing time.

[0003] Therefore, this invention proposes a down-proof testing device and method for down jacket fabrics to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a down-proof testing device and method for down jacket fabrics to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A down jacket fabric down-proof testing device includes a housing and multiple detection units circumferentially disposed on the housing. Each detection unit includes a down chamber and an air chamber. The down chamber has a test port on the side facing the outside of the housing. The test port has a positioning component for fixing the down jacket fabric under test. The down chamber has an adapted mesh plate. The air chamber has a sealing piston and air holes are arranged on the side of the air chamber facing the test port. The detection unit also includes a detachable mesh tube disposed on the test port for collecting down that has escaped. The testing device also includes a driving component for reciprocating movement of the sealing piston and the mesh plate toward the test port.

[0006] In one alternative: the positioning component is detachably disposed in the test port, and the positioning component includes a bottom frame and a pressing frame that is snapped into the bottom frame.

[0007] In one alternative: the upper side of the down chamber is provided with an opening, the air inlet is provided with a first one-way valve that only allows airflow to be discharged, the upper side of the air chamber is provided with a plurality of air inlets, and the air inlets are provided with a second one-way valve that only allows airflow to enter the air chamber.

[0008] In one alternative embodiment: the driving assembly includes a strike-bearing component located above the housing and an impact component for intermittently impacting the strike-bearing component from top to bottom to cause it to move downward. The sealing piston is provided with an L-shaped first push-pull rod. The upper side of the housing is provided with passage slots corresponding one-to-one with the first push-pull rods in the plurality of detection units. The end of the first push-pull rod away from the sealing piston passes through the corresponding passage slot and is hinged with a linkage rod between itself and the strike-bearing component. The sealing piston is also provided with a second push-pull rod. The second push-pull rod slides through the air chamber towards the test port in a sealed manner, and the end of the second push-pull rod away from the sealing piston is connected to a mesh plate.

[0009] In one alternative: the housing is further provided with a plurality of first guide rods, and the impact-bearing component is provided with a channel corresponding to each of the first guide rods. The first guide rods and the channels are slidably engaged, and the channels are provided with elastic elements.

[0010] In one alternative embodiment: the impact component includes an impact member disposed above the impacted member, a plurality of second guide rods that slide through the impact member, and a telescopic member disposed above the impact member. The impact member is made of iron material. The movable end of the telescopic member is provided with a magnetic suction member for magnetically attracting the impact member to drive it upward. The second guide rod is also provided with a limiting member for limiting the upward movement height of the impact member.

[0011] In one alternative: the impactor includes a base and a plurality of counterweights for adjusting the overall weight of the impactor, and the base is provided with insertion slots for inserting the counterweights.

[0012] In one alternative: the upper end of the impact-bearing component is further provided with a rubber pad to reduce impact noise.

[0013] A method for testing the down-proofness of down jacket fabrics, using any one of the down-proofness testing devices described in the above-mentioned technical solutions, includes the following steps: S1: Load and fix multiple down jacket fabric samples one by one with the testing unit. Specifically, the down jacket fabric to be tested is flattened and fixed in the test port by the fixing component, and then the mesh tube is installed on the test port. S2: Dispense the standard weight of down into each down chamber; S3: Drive the sealing piston and mesh plate to move synchronously back and forth toward the test port a set number of times via the drive component; S4: Remove the net tube, count the down feathers that have escaped, and take the average value. The larger the average value, the greater the amount of down feathers that have escaped from the fabric of the down jacket, which means the worse the down-proof performance.

[0014] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: 1. The multiple testing units set up can simultaneously test multiple down jacket fabric samples, thus enabling rapid completion of testing for multiple down jacket fabric samples; 2. During the stroke of the sealed piston moving towards the test port, the gas in the air chamber is pushed out and blown towards the down in the down chamber, causing it to move towards the test port. During the stroke of the mesh plate moving towards the test port, the down in the down chamber is pushed towards the test port, thereby impacting the down jacket fabric sample in the test port. After the set number of impacts is reached, the driving component stops its driving action. The mesh tube is removed to count the down that has escaped and take the average value. The larger the average value, the greater the amount of down leakage from the tested down jacket fabric, that is, the worse the down leakage prevention performance. Force is applied to the inside of the tested down jacket fabric to make the down impact the fabric. There are no objects on the outside of the fabric to contact and block the down from escaping, so as to ensure accurate and true feedback on the down leakage performance of the tested down jacket fabric.

[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 top sectional view of the housing and multiple detection units in an embodiment of the present invention.

[0019] Figure 3 This is a three-dimensional schematic diagram of the relationship between the housing and multiple detection units in an embodiment of the present invention.

[0020] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0021] Figure 5 for Figure 3 Enlarged view of section B in the middle.

[0022] Figure 6 This is a schematic diagram of the structure of the fixing component in an embodiment of the present invention.

[0023] Figure 7 for Figure 1 Enlarged view of point C in the middle.

[0024] Figure 8 This is a schematic diagram of the impact component in an embodiment of the present invention.

[0025] Figure reference numerals: 1-Shell, 2-Test port, 3-Mesh tube, 4-Drive assembly, 401-Impact component, 402-First push-pull rod, 403-Linkage rod, 404-First guide rod, 405-Impact component, 4051-Base, 4052-Insertion slot, 4053-Counterweight component, 406-Second guide rod, 407-Telescopic component, 408-Limiting component, 409-Magnetic component, 410-Channel, 411-Elastic component, 412-Second push-pull rod, 413-Passage slot, 5-Fixing assembly, 501-Bottom frame, 502-Pressure frame, 6-Down chamber, 7-Air chamber, 8-Feed port, 9-Sealing piston, 10-Mesh plate, 11-Air hole, 12-First one-way valve, 13-Air inlet, 14-Second one-way valve, 15-Down jacket fabric sample. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-6A down-proof testing device for down jacket fabric includes a housing 1 and multiple detection units circumferentially disposed on the housing 1. Each detection unit includes a down chamber 6 and an air chamber 7. The down chamber 6 has a test port 2 on the side facing the outside of the housing 1. The test port 2 has a fixing component 5 for fixing the down jacket fabric under test. The down chamber 6 has a matching mesh plate 10. The air chamber 7 has a sealing piston 9 and air holes 11 are arranged on the side of the air chamber 7 facing the test port 2. The detection unit also includes a detachable mesh tube 3 disposed on the test port 2 for collecting down that has escaped (the mesh tube 3 and the test port 2 can be connected by a thread or a positioning pin, as long as the mesh tube 3 can be detached, this application does not limit this). The testing device also includes a driving component 4 for driving the sealing piston 9 and the mesh plate 10 to move synchronously back and forth in the direction of the test port 2.

[0028] The multiple detection units can simultaneously test multiple down jacket fabric samples (one detection unit corresponds to one down jacket fabric sample), thus enabling rapid testing of multiple down jacket fabric samples. The specific testing operation is as follows: multiple down jacket fabric samples are sequentially loaded and fixed one-to-one with the detection units. First, the down jacket fabric to be tested is flattened and fixed in the test port 2 using the fixing component 5. Then, the mesh cylinder 3 is installed on the test port 2 to collect the down feathers that emerge. Next, a standard weight of down is placed into each down chamber 6. Subsequently, the driving component 4 drives the sealing piston 9 and the mesh plate 10 to move synchronously back and forth towards the test port 2 a set number of times. During the stroke of the sealing piston 9 towards the test port 2, the gas in the air chamber 7 is pushed out and blown towards the down feathers in the down chamber 6, causing them to move towards the test port. During the movement of the mesh plate 10 towards the test port 2, the down in the down chamber 6 is pushed towards the test port 2, thereby impacting the down jacket fabric sample in the test port 2. After the set number of impacts is reached, the driving action of the drive component 4 is stopped, and the mesh cylinder 3 is removed to count the down that has escaped (either counting or weighing method can be used, including counting the outer side of the down jacket fabric sample, the part of the fixed component 5 located on the outer side of the fabric, and the part of the test port 2 located on the outer side of the fabric, to avoid missing any down adhering to the surface). The average value is taken. The larger the average value, the greater the amount of down leakage from the tested down jacket fabric, that is, the worse the down leakage prevention performance. Force is applied to the inside of the tested down jacket fabric to cause the down to impact the fabric. There are no objects on the outside of the fabric to contact and block the down from escaping, thus ensuring that the down leakage performance of the tested down jacket fabric is accurately and truly reflected.

[0029] Furthermore, the fixing component 5 is detachably disposed in the test port 2, such as by means of bolts, buckles, or positioning pins. This application does not limit this to specific methods. The fixing component 5 includes a bottom frame 501 and a pressure frame 502 that is snapped into the bottom frame 501. When fixing or removing the fabric, the fixing component 5 is first removed from the test port 2 as a whole, and then the actions of snapping and fixing the fabric and removing the fabric are performed. This is not limited to the inner space of the test port 2, so that there is enough space for operation. In addition, it should be noted that after the fabric is fixed by the bottom frame 501 and the pressure frame 502, the area that can be impacted by down is the standard area required for the test.

[0030] Furthermore, the down chamber 6 is provided with an opening and closing inlet 8 on its upper side (the inlet 8 is in the form of an opening and closing cover plate to realize the opening and closing of the inlet 8). Down is put into the down chamber 6 through the inlet 8 and the down is cleaned out after the test is completed. The air inlet 11 is provided with a first one-way valve 12 that only allows airflow to be discharged. The upper side of the air chamber 7 is provided with several air inlets 13. The air inlets 13 are provided with a second one-way valve 14 that only allows airflow to enter the air chamber 7. It should be noted that the air chamber 7 is provided with a boss to limit the maximum distance that the sealing piston 9 moves toward the test port 2, so that the sealing piston 9 will not block the air inlet 13, and ensure that the sealing piston 9 pumps air to fill the air chamber 7 during the reset stroke (i.e., moves away from the test port 2) so that the next air pumping action can be performed.

[0031] Please see Figures 1-5 , Figure 7 and Figure 8 In one embodiment of the present invention, the driving assembly 4 includes a receiving member 401 disposed above the housing 1 and an impact component for intermittently impacting the receiving member 401 from top to bottom to cause it to move downward. The sealing piston 9 is provided with an L-shaped first push-pull rod 402. The upper side of the housing 1 is provided with a passage groove 413 corresponding to the first push-pull rod 402 in a plurality of detection units. The end of the first push-pull rod 402 away from the sealing piston 9 passes through the corresponding passage groove 413 and is hinged with a linkage rod 403 between it and the receiving member 401. The sealing piston 9 is also provided with a second push-pull rod 412. The second push-pull rod 412 slides through the air chamber 7 towards the test port 2 in a sealed manner, and the end of the second push-pull rod 412 away from the sealing piston 9 is connected to the mesh plate 10. The housing 1 is also provided with a plurality of first guide rods 404, and the impact-receiving member 401 is provided with a channel 410 corresponding to the first guide rods 404 one by one. The first guide rods 404 and the channel 410 are slidably engaged, and the channel 410 is provided with an elastic element 411. Preferably, the elastic element 411 is a spring. The impact component includes an impact member 405 disposed above the impacted member 401, a plurality of second guide rods 406 that slide through the impact member 405, and a telescopic member 407 disposed above the impact member 405. Preferably, the telescopic member 407 is a multi-stage electric telescopic rod in the prior art. The impact member 405 is made of iron material. The movable end of the telescopic member 407 is provided with a magnetic suction member 409 for magnetically attracting the impact member 405 to drive it to move upward. The second guide rods 406 are also provided with a limiting member 408 for limiting the upward movement height of the impact member 405.

[0032] In this embodiment, under no external force, the impacted member 401 is in the upper set position under the action of the elastic member 411, and is magnetically attracted to the impacted member 405 by the magnetic attracting member 409, and then retracted by the telescopic member 407 (to... Figure 1 (The angle shown is used for explanation) The impact member 405 moves upward. When the impact member 405 moves upward and contacts the limiting member 408, the telescopic member 407 continues to contract, causing the magnetic suction member 409 to detach from the impact member 405. The impact member 405 loses its magnetic attraction and falls under its own gravity, thus impacting the impacted member 401 from top to bottom. This causes the impacted member 401 to move downward momentarily. Under the action of the linkage rod 402, the sealing piston 9 and the mesh plate 10 move instantaneously towards the test port 2 by a certain distance, thereby generating an instantaneous airflow. Combined with the instantaneous pushing action of the mesh plate 10, the down impacts the down jacket fabric sample. After the impact is completed, the telescopic member 407 extends, causing the magnetic suction member 409 to move downward and magnetically attract the impact member 405. Then the telescopic member 407 contracts again, causing the impact member 405 to rise. The impacted member 401 returns to the upper set position under the action of the elastic member 411. Correspondingly, the sealing piston 9 and the mesh plate 10 return to their original positions to prepare for the next impact action.

[0033] Furthermore, in this embodiment, the impact member 405 includes a base 4051 (made of iron material) and a plurality of counterweights 4053 for adjusting the overall weight of the impact member 405. The base 4051 is provided with an insertion slot 4052 for inserting the counterweights 4053. The overall weight of the impact member 405 is adjusted by increasing or decreasing the number of counterweights 4053 according to the test requirements, thereby achieving the purpose of adjusting the impact test intensity. It should be noted that the counterweights 4053 can be fixed in the insertion slot 4052 by setting bolts, positioning pins, buckles, etc. This embodiment does not limit or elaborate on this.

[0034] Furthermore, in this embodiment, the upper end of the impact-receiving component 401 is also provided with a rubber pad to reduce impact noise.

[0035] The present invention also provides a method for testing the down-proofness of down jacket fabrics, using the down-proofness testing device for down jacket fabrics described in any of the above technical solutions, comprising the following steps: S1: Load and fix multiple down jacket fabric samples one by one with the testing unit. Specifically, the down jacket fabric to be tested is flattened and fixed in the test port 2 by fixing component 5, and then the mesh tube 3 is installed on the test port 2. S2: Dispense the standard weight of down into each down chamber 6; S3: Drive the sealing piston 9 and the mesh plate 10 to move synchronously back and forth toward the test port 2 a set number of times via the drive component 4; S4: Remove the net tube 3, count the down feathers that have escaped, and take the average value. The larger the average value, the greater the amount of down feathers that have escaped from the fabric of the down jacket, which means the worse the down-proof performance.

[0036] 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 down-proof testing device for down jacket fabrics, characterized in that, The device includes a housing (1) and multiple detection units circumferentially disposed on the housing (1). Each detection unit includes a down chamber (6) and an air chamber (7). The down chamber (6) has a test port (2) on the side facing the outside of the housing (1). The test port (2) has a positioning component (5) for fixing the fabric of the down garment under test. The down chamber (6) has a matching mesh plate (10). The air chamber (7) has a sealing piston (9) and air holes (11) are arranged on the side of the air chamber (7) facing the test port (2). The detection unit also includes a detachable mesh tube (3) disposed on the test port (2) for collecting the down that has drilled out. The testing device also includes a driving component (4) for driving the sealing piston (9) and the mesh plate (10) to move back and forth in the direction of the test port (2).

2. The down-proof testing device for down jacket fabrics according to claim 1, characterized in that, The positioning component (5) is detachably installed in the test port (2). The positioning component (5) includes a bottom frame (501) and a pressure frame (502) that is snapped into the bottom frame (501).

3. The down-proof testing device for down jacket fabrics according to claim 1, characterized in that, The down chamber (6) is provided with a feed inlet (8) on the upper side, and the air inlet (11) is provided with a first one-way valve (12) that only allows airflow to be discharged. The air chamber (7) is provided with several air inlets (13) on the upper side, and the air inlets (13) are provided with a second one-way valve (14) that only allows airflow to enter the air chamber (7).

4. The down-proof testing device for down jacket fabrics according to claim 1, characterized in that, The drive assembly (4) includes a strike member (401) disposed above the housing (1) and an impact component for intermittently impacting the strike member (401) from top to bottom to cause it to move downward. The sealing piston (9) is provided with an L-shaped first push-pull rod (402). The upper side of the housing (1) is provided with a passage groove (413) corresponding to the first push-pull rod (402) in multiple detection units. The end of the first push-pull rod (402) away from the sealing piston (9) passes through the corresponding passage groove (413) and is hinged with a linkage rod (403) between it and the strike member (401). The sealing piston (9) is also provided with a second push-pull rod (412). The second push-pull rod (412) slides through the air chamber (7) in a sealed manner on the side facing the test port (2), and the end of the second push-pull rod (412) away from the sealing piston (9) is connected to the mesh plate (10).

5. The down-proof testing device for down jacket fabrics according to claim 4, characterized in that, The housing (1) is also provided with a plurality of first guide rods (404), and the impact-bearing member (401) is provided with a channel (410) corresponding to the first guide rod (404) one by one. The first guide rod (404) and the channel (410) slide together, and the channel (410) is provided with an elastic member (411).

6. The down-proof testing device for down jacket fabrics according to claim 4, characterized in that, The impact component includes an impact member (405) disposed above the impacted member (401), a plurality of second guide rods (406) that slide through the impact member (405), and a telescopic member (407) disposed above the impact member (405). The impact member (405) is made of iron material. The movable end of the telescopic member (407) is provided with a magnetic suction member (409) for magnetically attracting the impact member (405) to drive it to move upward. The second guide rod (406) is also provided with a limiting member (408) for limiting the upward movement height of the impact member (405).

7. The down-proof testing device for down jacket fabrics according to claim 6, characterized in that, The impact member (405) includes a base (4051) and a plurality of counterweights (4053) for adjusting the overall weight of the impact member (405). The base (4051) is provided with an insertion slot (4052) for inserting the counterweights (4053).

8. The down-proof testing device for down jacket fabrics according to claim 4, characterized in that, The upper end of the impact-bearing component (401) is also provided with a rubber pad to reduce impact noise.

9. A method for testing the down-proofness of down jacket fabrics, using the down-proofness testing device for down jacket fabrics as described in any one of claims 1-8, characterized in that, Includes the following steps: S1: Load and fix multiple down jacket fabric samples one by one with the testing unit. Specifically, use the fixing component (5) to flatten and fix the down jacket fabric to be tested and place it in the test port (2), and then install the net tube (3) on the test port (2). S2: Add the standard weight of down to each down chamber (6); S3: Drive the sealing piston (9) and the mesh plate (10) to move synchronously back and forth in the direction of the test port (2) a set number of times through the drive component (4); S4: Remove the net tube (3) count the down that has escaped and take the average value. The larger the average value, the greater the amount of down that has escaped from the fabric of the down jacket, that is, the worse the down-proof performance.

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