Device for testing waterproof performance of chemical fiber fabric

Abstract

The utility model discloses a chemical fiber fabric waterproof performance testing device, which relates to the field of chemical fiber fabric detection and comprises a water tank and a fixing frame fixedly connected to the top of the water tank, the top of the water tank is fixedly provided with a lower pressing ring, and the top of the fixing frame is fixedly provided with an electric telescopic cylinder. An upper pressing ring located above the lower pressing ring is fixedly installed at the bottom of the electric telescopic cylinder, a leveling assembly is movably installed on the outer side of the upper pressing ring, and a spraying assembly is fixedly installed on the rear side of the water tank. The leveling assembly comprises a connecting lug fixedly connected to the outer side of the upper pressing ring. A rotating shaft is mounted in a connecting lug arranged outside an upper pressing ring, and a volute spiral spring clamped in a mounting groove outside the rotating shaft can enable a rubber roller to be in contact with fabric and slide outwards to drive a movable rod and the rotating shaft to rotate outwards to compress the volute spiral spring, so that the rubber roller extends outwards to flatten the fabric; the influence on the test effect caused by wrinkles is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chemical fiber fabric detection, in particular to a device for testing the waterproof performance of chemical fiber fabrics. Background Art

[0002] Chemical fiber fabric is a kind of artificial fiber fabric, which converts natural raw materials into fibers through chemical reactions. Chemical fiber fabrics have many advantages, such as wear resistance, wrinkle resistance, easy to clean, etc. Since chemical fiber fabrics are synthesized by chemical reactions, their properties can be adjusted according to requirements. The wrinkle resistance of chemical fiber fabrics is also very good, and they can still remain flat after being washed many times. Chemical fiber fabrics can be divided into many types, including nylon, polyester, polypropylene, etc. These fabrics have a wide range of applications in different fields. After the fabric is woven, it is often necessary to test its waterproofness, and a fabric waterproofness detection device will be used when testing the waterproofness of the fabric.

[0003] For the existing device for testing the waterproof performance of chemical fiber fabrics, when testing by the spraying method, the fabric is tightly fixed between the upper and lower pressing rings, so that the fabric is in direct contact with water. By setting a water-absorbing sponge below the fabric and spraying the fabric from above, the waterproof performance of the fabric is judged by measuring the water absorption of the water-absorbing sponge subsequently. However, when testing fabrics with many wrinkles, it is often necessary to manually smooth them, which is not convenient for quickly leveling the fabric, and thus may affect the test results of the hydrostatic pressure tester for waterproof fabrics. Summary of the Utility Model

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A device for testing the waterproof performance of chemical fiber fabrics includes a water tank and a fixing frame fixedly connected to the top of the water tank. A lower pressing ring is fixedly installed at the top of the water tank. An electric telescopic cylinder is fixedly installed at the top of the fixing frame. The bottom of the electric telescopic cylinder is fixedly installed with an upper pressing ring located above the lower pressing ring. A leveling assembly is movably installed on the outer side of the upper pressing ring. A spraying assembly is fixedly installed at the rear of the water tank;

[0006] The leveling assembly includes a connecting ear fixedly connected to the outer side of the upper pressing ring. An installation groove is arranged inside the connecting ear. A rotating shaft is rotatably installed inside the installation groove. A scroll spring located inside the installation groove is movably clamped outside the rotating shaft. A movable rod located inside the rotating shaft is fixedly sleeved outside the rotating shaft. A rubber roller is fixedly installed at the lower end of the movable rod.

[0007] A further improvement of the technical solution of the present utility model lies in that: the water tank includes a box body and a return hole opened at the top of the box body. A filter screen is movably clamped at the top of the return hole. A drain pipe is fixedly connected to the outside of the box body. The spraying assembly includes a water pump fixedly installed at the rear side of the box body and a water spraying disc fixedly installed above the inner part of the upper pressing ring. A connecting pipe is fixedly connected between the water spraying disc and the water pump.

[0008] A further improvement of the technical solution of the present utility model lies in that: the leveling assembly is arranged in an annular and equally spaced manner outside the upper pressing ring.

[0009] A further improvement of the technical solution of the present utility model lies in that: the lower pressing ring includes a placement frame and a clamping seat fixedly connected to the bottom of the placement frame. An annular edge is arranged at the top of the placement frame. A water-absorbing sponge is placed inside the placement frame.

[0010] A further improvement of the technical solution of the present utility model lies in that: the upper pressing ring includes a ring body and through holes equally spacedly opened on the outer side of the ring body. The ring body is adapted to the placement frame.

[0011] A further improvement of the technical solution of the present utility model lies in that: the outer diameter of the annular edge is larger than that of the ring body, and the top of the annular edge is arranged to be inclined and transition downward to the outside.

[0012] A further improvement of the technical solution of the present utility model lies in that: a clamping groove corresponding to the clamping seat is arranged at the top of the box body. The placement frame is located at the central position of the top of the box body.

[0013] A further improvement of the technical solution of the present utility model lies in that: the return holes are arranged in a rectangular distribution at the top of the box body. The connecting pipe is made of a flexible pipe.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0015] 1. The present utility model provides a device for testing the waterproof performance of chemical fiber fabrics. By installing a rotating shaft in the connecting ear arranged outside the upper pressing ring, and through a scroll spring clamped outside the rotating shaft in the installation groove, the rubber roller can contact the fabric and slide outward to drive the movable rod and the rotating shaft to rotate outward and compress the scroll spring. Thus, the fabric is flattened by the outward extension of the rubber roller, avoiding the generation of wrinkles and affecting the test effect.

[0016] 2. The present utility model provides a device for testing the waterproof performance of chemical fiber fabrics. When the water pump extracts the water in the box body and sends it to the water spraying disc for spraying, the excess water can flow into the box body through the filter screen to filter impurities and then flow back through the return hole for recycling, saving water resources. Description of the Drawings

[0017] Figure 1Schematic structural diagram of the waterproof performance testing device for chemical fiber fabrics of the present utility model;

[0018] Figure 2 Exploded schematic structural diagram of the present utility model;

[0019] Figure 3 Schematic structural diagram of the lower pressing ring and the upper pressing ring of the present utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged schematic structural diagram of part A of the present utility model;

[0021] Figure 5 Schematic structural diagram of the water tank and the spraying assembly of the present utility model.

[0022] In the figure: 1. Water tank; 11. Box body; 12. Return hole; 13. Filter screen; 14. Water adding and draining pipe; 2. Fixed frame; 3. Lower pressing ring; 31. Placing frame; 32. Clamping seat; 33. Annular edge; 34. Absorbent sponge; 4. Electric telescopic cylinder; 5. Upper pressing ring; 51. Ring body; 52. Through hole; 6. Flattening assembly; 61. Connecting ear; 62. Installation groove; 63. Rotating shaft; 64. Volute spring; 65. Movable rod; 66. Rubber roller; 7. Spraying assembly; 71. Water pump; 72. Spraying disc; 73. Connecting pipe. Detailed implementation manners

[0023] The following further details the present utility model:

[0024] As Figures 1 to 5 shown, the present utility model provides a waterproof performance testing device for chemical fiber fabrics, which includes a water tank 1 and a fixed frame 2 fixedly connected to the top of the water tank 1. A lower pressing ring 3 is fixedly installed on the top of the water tank 1, an electric telescopic cylinder 4 is fixedly installed on the top of the fixed frame 2, the bottom of the electric telescopic cylinder 4 is fixedly installed with an upper pressing ring 5 located above the lower pressing ring 3, a flattening assembly 6 is movably installed on the outer side of the upper pressing ring 5, and a spraying assembly 7 is fixedly installed at the rear side of the water tank 1;

[0025] The flattening assembly 6 includes a connecting ear 61 fixedly connected to the outer side of the upper pressing ring 5. An installation groove 62 is arranged inside the connecting ear 61. A rotating shaft 63 is rotatably installed inside the installation groove 62. A volute spring 64 located inside the installation groove 62 is movably clamped to the outside of the rotating shaft 63. A movable rod 65 located inside the rotating shaft 63 is fixedly sleeved on the outside of the rotating shaft 63. A rubber roller 66 is fixedly installed at the lower end of the movable rod 65.

[0026] A rotating shaft 63 is installed inside a connecting ear 61 disposed outside the upper pressing ring 5. A volute spring 64 is externally clamped to the outside of the rotating shaft 63 and placed inside an installation groove 62. In this way, the rubber roller 66 can contact the fabric and slide outwards, driving the movable rod 65 and the rotating shaft 63 to rotate outwards and compress the volute spring 64. Thus, the fabric can be flattened by the outward extension of the rubber roller 66, avoiding wrinkles that may affect the test results.

[0027] As Figure 2 shown, the water tank 1 includes a box body 11 and a return hole 12 opened at the top of the box body 11. A filter screen 13 is movably clamped at the top of the return hole 12. A water addition and drainage pipe 14 is fixedly connected to the outside of the box body 11. The spraying assembly 7 includes a water pump 71 fixedly installed at the rear side of the box body 11 and a water spraying disc 72 fixedly installed above the inside of the upper pressing ring 5. A connecting pipe 73 is fixedly connected between the water spraying disc 72 and the water pump 71.

[0028] When the water pump 71 pumps the water in the box body 11 to the water spraying disc 72 for spraying, the excess water can be filtered by the filter screen 13 to remove impurities and then flow into the box body 11 through the return hole 12 for recycling, thus saving water resources.

[0029] The water spraying disc 72 of the spraying assembly 7 is designed with a porous structure to ensure that water is evenly sprayed onto the entire surface of the fabric inside the upper pressing ring 5. The power and flow rate of the water pump 71 are carefully selected to meet the spraying requirements in different scenarios; an observation window is also provided on the front side of the box body 11, through which users can directly understand the water level in the water tank. To ensure the stable operation of the device, anti-slip pads are provided at the bottom of the water tank 1 to effectively prevent the device from slipping during use.

[0030] As Figure 3 shown, the leveling assembly 6 is arranged outside the upper pressing ring 5 at equal intervals in a ring shape.

[0031] The number of the annularly arranged leveling assemblies 6 can be adjusted according to the quantity of the fabric, and they can undergo corresponding elastic deformation according to the fabric, thereby ensuring that the fabric can obtain uniform pressure when passing through the leveling assembly 6, ensuring that the fabric can be automatically and quickly leveled. Among them, while increasing the friction force, the rubber roller 66 can also slide outwards along the surface of the fabric after the fabric is completely leveled, avoiding affecting the fabric.

[0032] As Figure 5 shown, the lower pressing ring 3 includes a placement frame 31 and a clamping seat 32 fixedly connected to the bottom of the placement frame 31. An annular edge 33 is provided at the top of the placement frame 31, and a water-absorbing sponge 34 is placed inside the placement frame 31.

[0033] The surface of the water-absorbing sponge 34 is covered with a layer of highly water-absorbent material, such as non-woven fabric or water-absorbing foam, which can quickly absorb liquid.

[0034] AsFigure 3 and Figure 4 As shown in Figure 4 , the upper pressing ring 5 includes a ring body 51 and through openings 52 equidistantly arranged on the outer side of the ring body 51. The ring body 51 is adapted to the placement frame 31.

[0035] By matching the ring body 51 with the placement frame 31, and at the same time, a sealing strip is provided at the bottom of the ring body 51 to ensure the sealing effect when butting and pressing. The through openings 52 opened on the side surface can quickly drain the excess spraying water from the inside of the ring body 51 to the inside of the box body 11.

[0036] As Figure 4 shown, the outer diameter of the annular edge 33 is larger than that of the ring body 51, and the top of the annular edge 33 is provided with a transition to an inclined surface downward and outward.

[0037] By providing the top of the annular edge 33 with a transition to an inclined surface downward and outward, when the rubber roller 66 contacts the top of the annular edge 33, it moves outward along the inclined surface to stretch the fabric outward.

[0038] As Figure 1 and Figure 2 shown, a card slot corresponding to the card seat 32 is provided at the top of the box body 11, and the placement frame 31 is located at the central position of the top of the box body 11.

[0039] The card seat 32 of the lower pressing ring 3 is designed as a rectangular structure to ensure that the card seat 32 can be firmly fixed in the card slot, ensuring that the lower pressing ring 3 will not fall off easily during use.

[0040] As Figure 1 shown, the return holes 12 are arranged in a rectangular distribution on the top of the box body 11, and the connecting pipe 73 is a flexible pipe.

[0041] Since the connecting pipe 73 is a flexible pipe, it is convenient to move up and down with the upper pressing ring 5. The return holes 12 arranged in a rectangular distribution can ensure that the spraying water can quickly flow back into the box body 11 for recycling.

[0042] Next, the working principle of the waterproof performance testing device for chemical fiber fabrics will be specifically described.

[0043] As Figures 1 to 5As shown, by laying the chemical fiber fabric to be detected on the top of the placement frame 31, and then driving the electric telescopic cylinder 4 to drive the upper pressing ring 5 to move downward by operating the external PLC controller. Since the length of the movable rod 65 is greater than that of the ring body 51, when the ring body 51 drives the leveling assembly 6 to move downward, the rubber roller 66 at the bottom of the movable rod 65 first contacts the top of the fabric. As the ring body 51 continues to move downward, the rubber roller 66 slides outward along the annular edge 33 with an outward inclined top surface, increasing the frictional force in contact with the fabric through the rubber roller 66, causing the movable rod 65 to drive the rotating shaft 63 to rotate outward along the installation groove 62 and compress the scroll spring 64. Thus, the wrinkled fabric is stretched outward by the leveling assemblies 6 arranged annularly and equidistantly outside the ring body 51. As the bottom of the ring body 51 contacts the fabric, the fabric is pressed against the top surface of the placement frame 31. Subsequently, the water pump 71 is controlled to extract the water inside the box body 11 and send it to the water spraying disc 72 through the connecting pipe 73. The water spraying disc 72 is installed inside the ring body 51, and the water is sprayed onto the surface of the fabric through the spray openings provided at the bottom of the water spraying disc 72. The sprayed water flows out through the through hole 52 and falls onto the top of the box body 11. After being filtered by the filter screen 13 provided on the top of the box body 11, it flows into the box body 11 through the return holes 12 for recycling. After spraying for a specified time, the electric telescopic cylinder 4 is controlled to drive the upper pressing ring 5 and the leveling assembly 6 to move upward, and then the fabric is taken off. The placement frame 31 is pulled out from the top of the box body 11 together with the clamping seat 32 at the bottom and weighed. Since the water-absorbing sponge 34 placed inside the placement frame 31 will absorb the water permeating through the fabric, the waterproof performance of the fabric is evaluated by comparing the weighing ratios before and after the test to obtain the weight of the permeated water.

[0044] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A waterproof performance testing device for chemical fiber fabrics, characterized in that: It includes a water tank (1) and a fixing frame (2) fixedly connected to the top of the water tank (1). A pressing ring (3) is fixedly installed at the top of the water tank (1). An electric telescopic cylinder (4) is fixedly installed at the top of the fixing frame (2). A pressing ring (5) located above the pressing ring (3) is fixedly installed at the bottom of the electric telescopic cylinder (4). A leveling component (6) is movably installed on the outer side of the pressing ring (5). A spraying component (7) is fixedly installed at the rear side of the water tank (1). The leveling component (6) includes a connecting ear (61) fixedly connected to the outer side of the pressing ring (5). An installation groove (62) is arranged inside the connecting ear (61). A rotating shaft (63) is rotatably installed inside the installation groove (62). A scroll spring (64) located inside the installation groove (62) is movably clamped to the outside of the rotating shaft (63). A movable rod (65) located inside the rotating shaft (63) is fixedly sleeved on the outside of the rotating shaft (63). A rubber roller (66) is fixedly installed at the lower end of the movable rod (65).

2. The waterproof performance testing device for a chemical fiber fabric according to claim 1, characterized in that: The water tank (1) includes a box body (11) and a return hole (12) opened at the top of the box body (11). A filter screen (13) is movably clamped at the top of the return hole (12). A drain pipe (14) is fixedly connected to the outside of the box body (11). The spraying component (7) includes a water pump (71) fixedly installed at the rear side of the box body (11) and a water spraying disc (72) fixedly installed above the inside of the pressing ring (5). A connecting pipe (73) is fixedly connected between the water spraying disc (72) and the water pump (71).

3. A testing device for the waterproof performance of a chemical fiber fabric according to claim 1, characterized in that: The leveling components (6) are arranged at equal intervals in a ring shape on the outside of the pressing ring (5).

4. The waterproof performance testing device for chemical fiber fabrics according to claim 2, wherein: The pressing ring (3) includes a placing frame (31) and a clamping seat (32) fixedly connected to the bottom of the placing frame (31). An annular edge (33) is arranged at the top of the placing frame (31). A water-absorbing sponge (34) is placed inside the placing frame (31).

5. The waterproof performance testing device for chemical fiber fabrics according to claim 4, characterized in that: The pressing ring (5) includes a ring body (51) and through openings (52) equally spacedly opened on the outside of the ring body (51). The ring body (51) is adapted to the placing frame (31).

6. The waterproof performance testing device for chemical fiber fabrics according to claim 5, wherein: The outer diameter of the annular edge (33) is larger than that of the ring body (51). The top of the annular edge (33) is arranged with a slope transitioning downward and outward.

7. An apparatus for testing the waterproof performance of a chemical fiber fabric according to claim 4, characterized in that: A clamping groove corresponding to the clamping seat (32) is arranged at the top of the box body (11). The placing frame (31) is located at the central position of the top of the box body (11).

8. The waterproof performance testing device for chemical fiber fabrics according to claim 2, characterized in that: The return holes (12) are arranged in a rectangular distribution at the top of the box body (11). The connecting pipe (73) is made of a flexible hose.

Images