A water repellency testing device for polyester weft-knitted decorative fabric

Abstract

This utility model discloses a water repellency testing device for polyester weft-knitted decorative fabric, including a base plate, on which uprights are symmetrically mounted on the top. A water collection tank is provided on the top of the base plate, corresponding to the position between the two uprights. Two rollers are rotatably connected between the two uprights, and guide rollers are fixedly connected to the surface of the rollers. Pressing assemblies are welded to the left and right sides of the two uprights, and a fabric body is provided between the two rollers and the two pressing assemblies. This water repellency testing device for polyester weft-knitted decorative fabric has a reasonable structural design and is easy to use. When testing the water repellency of polyester weft-knitted decorative fabric, the distance between the two pressing rollers used for squeezing water can be quickly adjusted according to the thickness of the fabric after soaking in water, thereby ensuring that water can be completely squeezed out from fabrics of different thicknesses. It has a good performance and can effectively improve the accuracy of the fabric water repellency test.

Description

Technical Field

[0001] This utility model relates to the field of fabric water repellency testing technology, specifically a water repellency testing device for polyester weft-knitted decorative fabric. Background Technology

[0002] Polyester weft-knitted decorative fabric is a decorative textile made primarily of polyester (polyester fiber) through a weft knitting process.

[0003] A search revealed a patent document, CN201821877144.5, which discloses a "water repellency testing device for polyester weft-knitted decorative fabric." The device includes a frame, a water storage tank, a water collection tank, and an extrusion assembly. The water storage tank and the water collection tank are both fixed to the frame, with the water collection tank located on the side of the water storage tank. The extrusion assembly is located above the water collection tank. The extrusion assembly can extrude the polyester weft-knitted decorative fabric after it has been soaked in the water storage tank. The water collection tank is located directly below the extrusion assembly. This device solves the problem of poor stability in the prior art.

[0004] In practical use, the distance between the two pressure rollers used to squeeze water out of the fabric is fixed. First, the thickness of the fabric after absorbing water varies, and it is difficult to completely squeeze out the water absorbed by the fabric when the roller distance is constant. Second, when the fabric is thin, the two pressure rollers cannot even provide pressure to the fabric, so it does not have a good effect. To address this, we have proposed a water repellency testing device for polyester weft-knitted decorative fabric to solve the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to provide a water repellency testing device for polyester weft-knitted decorative fabrics to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water repellency testing device for polyester weft-knitted decorative fabric, comprising a base plate, uprights symmetrically mounted on the top of the base plate, a water collection tank provided on the top of the base plate and at a position corresponding to the two uprights, two rollers rotatably connected between the two uprights, guide rollers fixedly connected to the surface of the rollers, pressing assemblies welded to the left and right sides of the two uprights, and a fabric body provided between the two rollers and the two pressing assemblies.

[0007] Furthermore, the pressing assembly includes a side support and a movable frame. The two ends of the side support are respectively welded to two uprights. The movable frame is slidably connected to the inner side of the side support in a transverse direction. A first motor is fixedly installed on the outer side of the movable frame. The output shaft of the first motor passes through the inner side of the movable frame and is fixedly connected to a pressing roller.

[0008] Furthermore, the first support plate is fixedly connected to both the front and rear sides of the mobile frame, and a telescopic rod is fixedly connected between the first support plate and the side wall of the side support.

[0009] Furthermore, a second support plate is symmetrically installed on the side wall of the side bracket. A rolling bearing is fixedly installed on the opposite side of each of the two second support plates. A screw is rotatably connected inside the rolling bearing. A transverse block is threaded along the axial direction on the screw. A first connecting seat is fixedly installed on the outer side of the transverse block. A second connecting seat is symmetrically installed on the outer side of the movable frame. A push-pull rod is movably installed between the first connecting seat and the second connecting seat on the same side.

[0010] Furthermore, a driven bevel gear is fixedly connected to the end of the screw away from the rolling bearing, and a second motor is fixedly installed on the outer side of the side bracket. The output shaft of the second motor passes through the inner side of the side bracket and is fixedly connected to a driving bevel gear that cooperates with the driven bevel gear.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention involves passing the fabric body, after being soaked and tested for water repellency, between two guide rollers, guiding it downwards. Once the fabric end is positioned between two extrusion rollers, two second motors can be simultaneously activated based on the fabric thickness. Their output shafts drive a driving bevel gear to rotate slowly, and the two driven bevel gears meshing with it drive a screw to rotate under the connection of rolling bearings. A transverse block threaded onto the screw, connected via a first connecting seat, a second connecting seat, and a push-pull rod, and guided and limited by a telescopic rod, pushes the moving frame and its inner extrusion rollers towards the fabric body after transverse movement along the screw axis, thereby achieving extrusion. After providing sufficient squeezing pressure, the second motor is de-energized, and the two first motors are simultaneously activated, driving the squeezing rollers to rotate and achieve downward transmission of the fabric body. During the transmission process, water is squeezed out and collected through the water collection tank below. This water repellency testing device for polyester weft-knitted decorative fabric has a reasonable structural design and is easy to use. When testing the water repellency of polyester weft-knitted decorative fabric, the distance between the two pressure rollers used for squeezing water can be quickly adjusted according to the thickness of the fabric after soaking in water, thereby ensuring that water in fabrics of different thicknesses can be completely squeezed out. It has a good performance effect and can effectively improve the accuracy of the fabric water repellency test. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the fabric pressing assembly of this utility model;

[0015] Figure 3This is a schematic diagram of the structure of the frame, roller, guide roller and fabric body of this utility model.

[0016] In the diagram: 1. Base plate, 2. Upright frame, 3. Water collection tank, 4. Roller shaft, 5. Guide roller, 6. Pressing assembly, 61. Side support, 62. Moving frame, 63. First motor, 64. Squeezing roller, 65. First support plate, 66. Telescopic rod, 67. Second support plate, 68. Rolling bearing, 69. Screw, 610. Horizontal movement block, 611. First connecting seat, 612. Second connecting seat, 613. Push-pull rod, 614. Driven bevel gear, 615. Second motor, 616. Driven bevel gear, 7. Fabric body. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 A water repellency testing device for polyester weft-knitted decorative fabric includes a base plate 1. Frames 2 are symmetrically mounted on the top of the base plate 1, and are fixed to the top of the base plate 1 near its sides by welding. A water collection tank 3 is located on the top of the base plate 1, between the two frames 2. The water collection tank 3 is used to collect the water squeezed out of the fabric. The water collection tank 3 is made of transparent glass and has graduated markings, allowing the operator to directly observe the specific water output of the tested polyester weft-knitted decorative fabric. This water output can be converted into corresponding water repellency performance parameters. The specific conversion... Referring to the corresponding parameter table, since the purpose of this utility model is to solve how to accurately determine the water output, the specific conversion method is not a technical problem to be solved. Therefore, the specific conversion process will not be described in detail. Two rollers 4 are rotatably connected between the two uprights 2. Guide rollers 5 are fixedly connected to the surface of the rollers 4. Pressing cloth components 6 are welded on both the left and right sides of the two uprights 2. The two pressing cloth components 6 can be used to squeeze the cloth to output water. A cloth body 7 is provided between the two rollers 4 and the two pressing cloth components 6. The two guide rollers 5 can guide the cloth body 7 between the two pressing cloth components 6.

[0019] The fabric pressing assembly 6 includes a side support 61 and a movable frame 62. The two ends of the side support 61 are welded to two upright frames 2 respectively. The movable frame 62 is slidably connected to the inner side of the side support 61 in a transverse direction. A first motor 63 is fixedly installed on the outer side of the movable frame 62. The first motor 63 is powered by a battery or an external power source. The output shaft of the first motor 63 passes through the inner side of the movable frame 62 and is fixedly connected to a pressing roller 64. The pressing roller 64 is rotated by the first motor 63, which can guide the fabric downward while pressing it. Anti-slip textures or anti-slip strips can be set on the surface of the pressing roller 64 to prevent slippage during the pressing of the fabric.

[0020] The first support plate 65 is fixedly connected to both the front and rear sides of the movable frame 62. A telescopic rod 66 is fixedly connected between the first support plate 65 and the side wall of the side support 61. The telescopic rod 66 can form a connection between the movable frame 62 and the side support 61 and provide a limiting and guiding function for the movable frame 62.

[0021] A second support plate 67 is symmetrically installed on the side wall of the side bracket 61. A rolling bearing 68 is fixedly installed on the opposite side of each of the two second support plates 67. A screw 69 is rotatably connected inside the rolling bearing 68. The rolling bearing 68 can connect and support the end of the screw 69, thereby improving its smoothness during rotation. The pitch of the screw 69 should be as small as possible to ensure the precision of transmission. A transverse block 610 is threaded along the axial direction on the screw 69. A first connecting seat 611 is fixedly installed on the outer side of the transverse block 610. A second connecting seat 612 is symmetrically installed on the outer side of the moving frame 62. A push-pull rod 613 is movably installed between the first connecting seat 611 and the second connecting seat 612 on the same side.

[0022] A driven bevel gear 614 is fixedly connected to the end of the screw 69 away from the rolling bearing 68. A second motor 615 is fixedly installed on the outer side of the side bracket 61. The second motor 615 is a stepper motor and can be powered by a battery or an external power source. The output shaft of the second motor 615 passes through the inner side of the side bracket 61 and is fixedly connected to an active bevel gear 616 that works with the driven bevel gear 614. When the second motor 615 is turned on, its output shaft can drive the driven bevel gear 614 to rotate slowly, thereby driving the driven bevel gear 614 and the screw 69 to rotate slowly. The transverse block 610, which is threaded onto the screw 69, is connected by the first connecting seat 611, the second connecting seat 612 and the push-pull rod 613, and is guided and limited by the telescopic rod 66. After moving laterally along the axial direction of the screw 69, it pushes the moving frame 62 and the inner pressing roller 64 to move towards the fabric body 7, thereby achieving pressing.

[0023] The water repellency testing device for polyester weft-knitted decorative fabric has a reasonable structural design and is easy to use. When testing the water repellency of polyester weft-knitted decorative fabric, the distance between the two pressure rollers used for squeezing water can be quickly adjusted according to the thickness of the fabric after soaking in water, thereby ensuring that water can be completely squeezed out from fabrics of different thicknesses. It has a good performance and can effectively improve the accuracy of the fabric water repellency test.

[0024] In use, the fabric body 7, after being soaked and tested for water repellency, is passed between the two guide rollers 5 and guided downwards. After the end of the fabric is placed between the two extrusion rollers 64, the two second motors 615 can be turned on simultaneously according to the thickness of the fabric. Their output shafts drive the active bevel gear 616 to rotate slowly. The two driven bevel gears 614 meshing with it drive the screw 69 to rotate under the connection of the rolling bearing 68. The transverse block 610, which is threaded onto it, is connected by the first connecting seat 611, the second connecting seat 612 and the push-pull rod 613, and cooperates with the guide limit of the telescopic rod 66. After moving laterally along the axial direction of the screw 69, it pushes the moving frame 62 and the extrusion roller 64 on its inner side to move towards the fabric body 7, thereby achieving extrusion. After providing sufficient extrusion pressure, the second motor 615 is de-energized, and the two first motors 63 are turned on simultaneously to drive the extrusion roller 64 to rotate, thereby achieving downward transmission of the fabric body 7 and squeezing out water during the transmission process. The water can then be collected through the water collection tank 3 below.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing water repellency of polyester weft knitted decorative fabric, comprising a base plate (1), characterized in that: The top of the base plate (1) is symmetrically equipped with uprights (2). A water collection tank (3) is provided on the top of the base plate (1) and at the position corresponding to the two uprights (2). Two rollers (4) are rotatably connected between the two uprights (2). A guide roller (5) is fixedly connected to the surface of the roller (4). Pressing assemblies (6) are welded on the left and right sides of the two uprights (2). A fabric body (7) is provided between the two rollers (4) and the two pressing assemblies (6).

2. The water repellency testing device for polyester weft knitted decorative fabric according to claim 1, characterized in that: The pressing assembly (6) includes a side support (61) and a movable frame (62). The two ends of the side support (61) are welded to two uprights (2) respectively. The movable frame (62) is slidably connected to the inner side of the side support (61) in the transverse direction. A first motor (63) is fixedly installed on the outer side of the movable frame (62). The output shaft of the first motor (63) passes through the inner side of the movable frame (62) and is fixedly connected to a pressing roller (64).

3. The water repellency testing device for polyester weft knitted decorative fabric according to claim 2, characterized in that: The first support plate (65) is fixedly connected to both the front and rear sides of the movable frame (62), and a telescopic rod (66) is fixedly connected between the first support plate (65) and the side wall of the side bracket (61).

4. The water repellency testing device for polyester weft knitted decorative fabric according to claim 3, wherein: The side support (61) is also symmetrically equipped with a second support plate (67). Rolling bearings (68) are fixedly installed on opposite sides of the two second support plates (67). A screw (69) is rotatably connected inside the rolling bearing (68). A transverse block (610) is threaded along the axial direction on the screw (69). A first connecting seat (611) is fixedly installed on the outer side of the transverse block (610). A second connecting seat (612) is symmetrically installed on the outer side of the moving frame (62). A push-pull rod (613) is movably installed between the first connecting seat (611) and the second connecting seat (612) on the same side.

5. The water repellency testing device for polyester weft knitted decorative fabric according to claim 4, wherein: The end of the screw (69) away from the rolling bearing (68) is fixedly connected to a driven bevel gear (614). A second motor (615) is fixedly installed on the outer side of the side bracket (61). The output shaft of the second motor (615) passes through the inner side of the side bracket (61) and is fixedly connected to a driving bevel gear (616) that works with the driven bevel gear (614).

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