Device and method for automatically testing sunscreen performance of down feather fabric

Abstract

The invention relates to an automatic testing device and method for the sunscreen performance of down feather fabric. The testing device comprises a box body with an opening, limiting holes are formed in the four corners of the end where the opening is located, limiting rods are movably installed at the limiting holes, and the ends, located outside the limiting holes, of the limiting rods are fixedly connected with clamping frames used for fixing the down fabric; an upper clamping block is movably mounted on the clamping frame, and a lower clamping block corresponding to the upper clamping block is movably mounted at the opening of the box body; according to the invention, the change of the self tightness, the self wear degree and the external illumination intensity of the fabric in the actual use process can be changed, and the real use scene of the fabric can be simulated, so that the real sunscreen performance of the fabric can be reflected, and the test accuracy of the fabric can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric performance testing, and in particular relates to a device and method for automatically testing the sunscreen performance of down fabrics. Background Art

[0002] Down fabric is one of the many high value-added textile fabrics. It has excellent warmth and cold protection functions and is the mainstream trend of the thermal insulation fabric industry. Some down fabrics have sun protection functions.

[0003] When testing the sun protection performance of down fabrics, it is usually carried out in a laboratory. The fabric is in an ideal and static state, which cannot reflect the true sun protection effect of the down fabric in actual use environment, resulting in errors in the test results. Summary of the invention

[0004] The purpose of the present invention is to provide a down fabric sunscreen performance automatic testing device and method in order to solve the problems raised in the above background technology.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An automatic testing device for sun protection performance of down fabrics, comprising a box body with an opening, wherein four corners of one end where the opening is located are provided with limiting holes, limiting rods are movably installed at the limiting holes, and one end of the limiting rod located outside the limiting hole is fixedly connected with a clamping frame for fixing the down fabric;

[0007] An upper clamping block is movably mounted on the clamping frame, and a lower clamping block corresponding to the upper clamping block is movably mounted at the opening of the box body;

[0008] The box body is provided with a through hole, a rotating shaft is rotatably arranged at the through hole, one end of the rotating shaft located in the box body is connected with a reciprocating moving component, the reciprocating moving component is rotatably connected with the lower clamping block, and the reciprocating moving component is used to drive the lower clamping block, the upper clamping block and the fabric to reciprocate at the opening, and the one end of the rotating shaft located outside the box body is connected with a driving component;

[0009] An ultraviolet intensity meter is fixedly arranged in the box.

[0010] Preferably, the driving assembly includes a solar power generation module, a driving motor, and a gearbox;

[0011] The solar power generation module and the gearbox are both fixedly mounted on the box body, the drive motor is connected to the input end of the gearbox, and the drive motor is electrically connected to the solar power generation module;

[0012] The output end of the gearbox is connected to the rotating shaft.

[0013] Preferably, the reciprocating assembly comprises a rotating wheel which is fixedly connected coaxially with the rotating shaft, a connecting plate is rotatably mounted at a non-center position of the rotating wheel, and the connecting plate is rotatably connected to the lower clamping block.

[0014] Preferably, a connecting rod is rotatably mounted on the clamping frame, and a coil spring for controlling the rotation angle of the connecting rod is provided between the connecting rod and the clamping frame;

[0015] A wire rope is wound around the connecting rod, and one end of the wire rope away from the connecting rod is fixed on the upper clamping block;

[0016] A magnifying glass is fixedly mounted on the connecting rod, and when the upper clamping block moves, the wire rope is pulled to rotate the connecting rod, and the connecting rod drives the magnifying glass to rotate;

[0017] A partition is fixedly provided in the box;

[0018] A pressing plate corresponding to the partition plate is movably arranged on the clamping frame.

[0019] Preferably, a scraper block for frictionally damaging the surface of the fabric is fixedly provided on the upper clamping block.

[0020] Preferably, the upper clamping block and the lower clamping block have opposite magnetic properties.

[0021] An automatic testing method for sun protection performance of down fabrics comprises the following steps:

[0022] S1: Cut the down fabric into a set size, place the down fabric at the opening of the box, and move the clamping frame to fix the down fabric at the opening;

[0023] S2: Using the driving assembly to drive the rotating shaft to rotate, so that the reciprocating moving assembly drives the lower clamping block, the upper clamping block and the fabric to reciprocate at the opening;

[0024] S3: Use a UV intensity meter to record the UV intensity in the box when the clamp is in different positions, and compare it with the preset value to determine the sun protection performance of the down fabric.

[0025] The beneficial effects of the present invention are:

[0026] The present invention can change the change of the elasticity of the fabric, the degree of its own wear and tear, and the external light intensity during the actual use of the fabric, and can simulate the real use scenario of the fabric, so as to reflect the real sun protection performance of the fabric, which helps to improve the testing accuracy of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the positional relationship between the solar power generation module and the box body in the present invention;

[0029] Figure 3 It is a schematic diagram of the positional relationship between the magnifying glass and the clamping frame in the present invention.

[0030] In the figure: 1. opening; 2. box body; 3. limiting hole; 4. limiting rod; 5. clamping frame; 6. upper clamping block; 7. lower clamping block; 8. rotating shaft; 9. UV intensity meter; 10. solar power generation module; 11. driving motor; 12. gearbox; 13. rotating wheel; 14. connecting plate; 15. connecting rod; 16. coil spring; 17. cord; 18. magnifying glass; 19. scraping block; a. fabric. DETAILED DESCRIPTION

[0031] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Example 1

[0033] like Figure 1-3 As shown, an automatic test device for sun protection performance of down fabrics comprises a box body 2 with an opening 1 at the top, and limit holes 3 are provided at the four corners of the top, and limit rods 4 are movably installed at the limit holes 3. A clamping frame 5 for fixing the down fabric a is fixedly connected to the top of the limit rod 4. The clamping frame 5 is a square ring, and the size of the outer ring of the clamping frame 5 is larger than the size of the opening 1 of the box body 2. The clamping frame 5 can contact with the box body 2, and the clamping frame 5 has a large mass, and can press the fabric a at the opening 1 of the box body 2 downward under the action of its own gravity.

[0034] A slide groove is provided on the inner side wall of the clamping frame 5, and an upper clamp block 6 is movably installed at the slide groove, and the upper clamp block 6 can move horizontally at the slide groove. A slide groove is provided on the inner side wall of the opening 1 of the box body 2, and a lower clamp block 7 corresponding to the upper clamp block 6 is movably installed at the slide groove. Preferably, the upper clamp block 6 and the lower clamp block 7 have opposite magnetism. When the upper clamp block 6 and the lower clamp block 7 are close to each other, they can attract each other, and when the lower clamp block 7 moves horizontally, it can drive the upper clamp block 6 to move synchronously.

[0035] The box body 2 is provided with a horizontal through hole, and a rotating shaft 8 is rotatably arranged at the through hole. The end of the rotating shaft 8 located inside the box body 2 is connected to a reciprocating moving component, and the reciprocating moving component is rotatably connected to the lower clamping block 7. The end of the rotating shaft 8 located outside the box body 2 is connected to a driving component.

[0036] An ultraviolet intensity meter 9 is fixedly arranged in the box body 2. The ultraviolet intensity meter 9 is an instrument for measuring ultraviolet radiation.

[0037] It should be noted that during the test, fabric a is cut into a suitable size and covers the opening 1 of the box body 2, and the clamping frame 5 is moved downward to clamp fabric a between the box body 2 and the clamping frame 5, and fabric a can completely block the opening 1. At this time, the upper clamping block 6 and the lower clamping block 7 simultaneously clamp fabric a tightly.

[0038] Then, the driving assembly drives the rotating shaft 8 to rotate, so that the reciprocating assembly drives the lower clamp block 7, the upper clamp block 6 and the fabric a to reciprocate at the opening 1. When the lower clamp block 7 and the upper clamp block 6 tighten the fabric a, the fabric a becomes tight, and when the lower clamp block 7 and the upper clamp block 6 move back, the fabric a becomes loose. This can simulate the folding and tightening of the fabric a in actual use.

[0039] When the fabric a is in different states, the UV intensity in the box 2 is detected by the UV intensity meter 9. The larger the value of the UV intensity meter 9, the worse the sun protection performance of the fabric a. The smaller the value, the better the sun protection performance of the fabric a.

[0040] The data of the ultraviolet intensity meter 9 can be directly observed by opening an observation window on the box body 2 or transmitted through a data line and displayed on a display screen.

[0041] In the above embodiment, the driving assembly includes a solar power generation module 10 , a driving motor 11 , and a gearbox 12 .

[0042] The solar power generation module 10 and the gearbox 12 are both fixedly mounted on the housing 2 , the drive motor 11 is connected to the input end of the gearbox 12 , and the drive motor 11 is electrically connected to the solar power generation module 10 .

[0043] The output end of the gearbox 12 is connected to the rotating shaft 8 .

[0044] The working principle of the driving assembly is as follows: the box 2 is placed in the sun, and the solar power generation module 10 (existing technology) converts solar energy into electrical energy, which drives the driving motor 11 to start, and the driving motor 11 drives the rotating shaft 8 to rotate through the gearbox 12. The speed of the rotating shaft 8 is controllable, and the speed is preferably low, so that the ultraviolet intensity meter 9 can accurately measure the ultraviolet intensity in the box 2. If the speed of the rotating shaft 8 is too fast, the deformation of the fabric a is too fast, which may cause a large deviation in the measurement result.

[0045] In the above embodiment, the reciprocating assembly includes a rotating wheel 13 fixedly connected to the rotating shaft 8 concentrically, and a connecting plate 14 is rotatably mounted at a non-center position of the rotating wheel 13, and the connecting plate 14 is rotatably connected to the lower clamping block 7. When the rotating wheel 13 rotates with the rotating shaft 8, the connecting plate 14 is driven to move, and because the connecting plate 14 is eccentrically arranged, the connecting plate 14 drives the lower clamping block 7 to reciprocate back and forth along its slide groove.

[0046] Furthermore, a connecting rod 15 is rotatably mounted on the clamping frame 5 , and a coil spring 16 for controlling the rotation angle of the connecting rod 15 is provided between the connecting rod 15 and the clamping frame 5 .

[0047] A wire rope 17 is wound around the connecting rod 15 , and one end of the wire rope 17 away from the connecting rod 15 is fixed to the upper clamping block 6 .

[0048] A detachable magnifying glass 18 is fixedly mounted on the connecting rod 15 .

[0049] It should be noted that, because the lighting conditions of fabric a are different during actual use, when external reflected light shines on fabric a, the local light intensity of fabric a will increase. If fabric a has poor sun protection performance, it will cause rapid aging of fabric a. By providing a magnifying glass 18, when the upper clamp 6 is away from the magnifying glass 18, the cord 17 is pulled to rotate the connecting rod 15, and the connecting rod 15 drives the magnifying glass 18 to rotate. The lens of the magnifying glass 18 gradually rotates to a state perpendicular to the direction of light irradiation. At this time, the magnifying glass 18 produces a focusing effect on the surface of fabric a, which increases the light intensity on the surface of fabric a. This can simulate the scene when fabric a is exposed to strong light during actual use, and has no effect on the tightness of fabric a.

[0050] After the magnifying glass 18 produces a focusing effect, the upper clamping block 6 stops moving, the driving motor 11 can be powered off by the controller, the fabric a is irradiated under the focusing effect, and the value of the ultraviolet intensity meter 9 is observed after a set time. If the value becomes larger, it means that the sun protection performance of the fabric a is poor and rapid aging occurs.

[0051] The focal point formed by the magnifying glass 18 on the fabric a should not be too small to prevent the fabric a from burning.

[0052] Furthermore, a scraper block 19 for rubbing and damaging the surface of fabric a is fixed on the upper clamp block 6, and the scraper block 19 is detachable. Similar to the light intensity test, the fabric a needs to be fixed by a pressing block, and the magnifying glass 18 is removed. When the scraper block 19 moves, the surface of fabric a is rubbing and damaged, which can simulate the state of fabric a after long-term use and wear, and test whether the sun protection performance of fabric a has changed.

[0053] It should be noted that when testing the sunscreen performance of a single factor (such as tightness), other factors (such as light intensity) are not involved in the test, that is, multiple environments cannot be superimposed. When testing the light intensity, the pressure plate needs to be pressed down and the scraper 19 needs to be removed so that only the light changes. Similarly, appropriate adjustments should be made when testing the other two factors, including the loading and unloading of the test structure.

[0054] An automatic testing method for sun protection performance of down fabrics comprises the following steps:

[0055] S1: Cut the down fabric into a set size, place the down fabric at the opening 1 of the box body 2, and move the clamping frame 5 to fix the down fabric at the opening 1.

[0056] S2: The driving assembly drives the rotating shaft 8 to rotate, so that the reciprocating assembly drives the lower clamping block 7, the upper clamping block 6 and the fabric to reciprocate at the opening 1. The magnifying glass 18 is used to focus light on the fabric and scrape the surface of the fabric.

[0057] S3: Using the ultraviolet intensity meter 9 to record the ultraviolet intensity in the box body 2 when the clamping block 7 is at different positions, and comparing it with the preset value to determine the sun protection performance of the down fabric.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An automatic testing device for sun protection performance of down fabrics, characterized in that: It comprises a box body (2) having an opening (1), wherein the four corners of one end where the opening (1) is located are provided with limiting holes (3), a limiting rod (4) is movably installed at the limiting hole (3), and one end of the limiting rod (4) located outside the limiting hole (3) is fixedly connected to a clamping frame (5) for fixing the down fabric; An upper clamping block (6) is movably mounted on the clamping frame (5), and a lower clamping block (7) corresponding to the upper clamping block (6) is movably mounted at the opening (1) of the box body (2); The box body (2) is provided with a through hole, and a rotating shaft (8) is rotatably arranged at the through hole. One end of the rotating shaft (8) located inside the box body (2) is connected to a reciprocating moving component, and the reciprocating moving component is rotatably connected to the lower clamping block (7). The reciprocating moving component is used to drive the lower clamping block (7), the upper clamping block (6) and the fabric to reciprocate at the opening (1). The end of the rotating shaft (8) located outside the box body (2) is connected to a driving component. An ultraviolet intensity meter (9) is fixedly arranged in the box (2).

2. The automatic testing device for sun protection performance of down fabrics according to claim 1 is characterized in that: The driving assembly comprises a solar power generation module (10), a driving motor (11), and a gearbox (12); The solar power generation module (10) and the gearbox (12) are both fixedly mounted on the box body (2), the drive motor (11) is connected to the input end of the gearbox (12), and the drive motor (11) is electrically connected to the solar power generation module (10); The output end of the gearbox (12) is connected to the rotating shaft (8).

3. The automatic testing device for sun protection performance of down fabrics according to claim 2 is characterized in that: The reciprocating assembly comprises a rotating wheel (13) fixedly connected concentrically with the rotating shaft (8), a connecting plate (14) is rotatably mounted at a non-center position of the rotating wheel (13), and the connecting plate (14) is rotatably connected to the lower clamping block (7).

4. The automatic testing device for sun protection performance of down fabrics according to claim 3 is characterized in that: A connecting rod (15) is rotatably mounted on the clamping frame (5), and a coil spring (16) for controlling the rotation angle of the connecting rod (15) is provided between the connecting rod (15) and the clamping frame (5); A wire rope (17) is wound around the connecting rod (15), and one end of the wire rope (17) away from the connecting rod (15) is fixed to the upper clamping block (6); A magnifying glass (18) is fixedly mounted on the connecting rod (15); when the upper clamping block (6) moves, the wire rope (17) is pulled to rotate the connecting rod (15), and the connecting rod (15) drives the magnifying glass (18) to rotate; A partition plate (20) is fixedly provided inside the box body (2); A pressing plate (21) corresponding to the partition plate (20) is movably arranged on the clamping frame (5).

5. The automatic testing device for sun protection performance of down fabrics according to claim 4 is characterized in that: A scraper block (19) for rubbing and damaging the surface of the fabric is fixedly provided on the upper clamping block (6).

6. The automatic testing device for sun protection performance of down fabrics according to claim 1, characterized in that: The upper clamping block (6) and the lower clamping block (7) have opposite magnetic properties.

7. A method for testing the sun-proof performance of down fabrics using the automatic sun-proof performance testing device of any one of claims 1 to 6, characterized in that: The following steps are involved: S1: cutting the down fabric into a set size, placing the down fabric at the opening (1) of the box (2), and moving the clamping frame (5) to fix the down fabric at the opening (1); S2: using the driving assembly to drive the rotating shaft (8) to rotate, so that the reciprocating moving assembly drives the lower clamping block (7), the upper clamping block (6) and the fabric to reciprocate at the opening (1); S3: Using an ultraviolet intensity meter (9) to record the ultraviolet intensity in the box (2) when the clamping block (7) is in different positions, and comparing it with a preset value to determine the sun protection performance of the down fabric.

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