Elastic fabric snagging performance testing device

Abstract

The utility model discloses an elastic fabric snagging performance testing device which comprises a working table, a transversely arranged guide rail structure is connected to the working table, at least one sliding table is movably arranged on the guide rail structure, three rod pieces with adjustable angles are connected to the sliding table, sliding grooves are formed in the rod pieces, and the sliding grooves are connected with the sliding table. A connecting rod is arranged in each sliding groove in a sliding mode, the upper ends of the connecting rods slide in the sliding grooves, and the lower ends of the connecting rods are connected with nail hammers. Each sliding table is correspondingly provided with a rolling mechanism, each rolling mechanism comprises two side plates, three rollers capable of synchronously rotating are connected between the side plates, the rollers are in a circular truncated cone shape, the heads and the tails of the adjacent rollers are arranged in an inverted mode, and the three rollers in the same rolling mechanism make contact with the three nail hammers on the corresponding sliding table respectively. The snagging performance test of the elastic fabric has the technical characteristics of being comprehensive, accurate, high in stability and the like.

Description

Technical Field

[0001] The utility model relates to a performance testing device, and more specifically, to a snagging performance testing device for elastic fabrics, belonging to the field of snagging performance testing of elastic fabrics. Background Art

[0002] The performance of clothing fabrics is diverse and important, including abrasion resistance, moisture absorption, air permeability, etc. Among them, the snagging resistance performance measures the ability of the fabric to resist damage such as snagging and fuzzing, which directly affects the appearance quality of the fabric. In filament fabrics and knitted fabrics, the snagging phenomenon is more significant, which may lead to silk loops, tight yarn segments or filamentous protrusions, significantly reducing the aesthetics of the fabric. Therefore, the snagging resistance performance has become one of the important indicators for evaluating the wearing performance of fabrics.

[0003] In the domestic textile industry, for evaluating the snagging resistance performance of fabrics, the most commonly used standard method is GB / T 11048-2008 "Textiles - Evaluation of snagging resistance - Hammer method". The design principle of this standard method aims to simulate the snagging situation that the fabric may encounter during actual wearing and quantitatively evaluate its snagging resistance ability. The specific test principle is to put the tubular sample on the rotating cylinder, and place the hammer suspended by the chain on the surface of the sample. When the rotating cylinder rotates at a constant speed, the hammer randomly flips, jumps and hooks the sample on the surface of the sample, and snagging occurs on the surface of the sample. After a specified number of revolutions, the snagging degree of the sample is rated by comparing with the standard sample.

[0004] Compared with the domestic equipment YG518, for the equipment M078 for studying the snagging performance of fabrics abroad, the freely movable range at the upper suspension of the chain is larger, and its moving angle is 0° to 25°, while the moving angle of the chain of the domestic equipment YG518 is only 0° to 5°. If the chain exceeds this moving angle, the effect of the snagging test will be significantly reduced.

[0005] However, although GB / T 11048-2008 "Textiles - Evaluation of snagging resistance - Hammer method" is widely used in the industry, this method still has some limitations: one is that since the movement of the hammer on the surface of the sample is random, there may be certain differences in the results of each test; the other is that this method mainly simulates the snagging situation of the fabric in the flat state and cannot fully simulate the friction and stretching of the fabric in multiple directions during actual wearing. Content of the Utility Model

[0006] The purpose of the utility model is to provide a snagging performance testing device for elastic fabrics, which has technical characteristics such as comprehensiveness, accuracy and high stability for testing the snagging performance of elastic fabrics.

[0007] In order to achieve the above purpose, the utility model is realized by the following technical solutions:

[0008] The utility model relates to a device for testing the snagging performance of elastic fabrics, which comprises a workbench. A transverse arrangement guide rail structure is connected to the workbench. At least one sliding table is movably arranged on the guide rail structure. Three rods with adjustable angles are connected to the sliding table. A chute is formed in each rod. A connecting rod is slidably arranged in each chute, and the upper end of the connecting rod slides in the chute. A claw hammer is connected to the lower end of the connecting rod.

[0009] A set of rolling mechanisms is correspondingly arranged for each sliding table. The rolling mechanism comprises two side plates. Three rollers capable of synchronously rotating are connected between the side plates, and the rollers are frustum-shaped. The head and tail of adjacent rollers are arranged in reverse. The three rollers in the same set of rolling mechanisms respectively contact the three claw hammers on the corresponding sliding table.

[0010] Preferably, each roller is connected with a sprocket. The sprockets are located outside the same side plate. The three sprockets are linked by a chain. Any one of the rollers in the same set of rolling mechanisms is driven by a first motor.

[0011] Preferably, the guide rail structure comprises a support table, a guide rail, a lead screw and a second motor. The guide rail is horizontally connected to the support table. The lead screw is arranged parallel to the guide rail at an interval and rotatably arranged on the support table. The second motor is fixed at one end of the support table and connected to the lead screw to drive the lead screw to rotate. The sliding table is in threaded connection with the lead screw and slidably installed on the guide rail.

[0012] Preferably, the guide rail structure comprises a secondary synchronous pulley and a primary synchronous pulley driven by a third motor. The primary synchronous pulley and the secondary synchronous pulley are linked by a synchronous belt. The sliding table is connected to the synchronous belt.

[0013] Preferably, a controller is further included, and each motor is communicatively connected to the controller.

[0014] Preferably, a detachable baffle is respectively connected between the left ends and the right ends of the two side plates.

[0015] Preferably, at least two sliding tables are movably arranged on the guide rail structure.

[0016] Preferably, the sliding table and the rod are connected by a pin shaft with a screw.

[0017] Preferably, the claw hammer comprises a sphere and nails covering the outer peripheral surface of the sphere.

[0018] Preferably, the claw hammer is rotatably connected to the lower end of the connecting rod.

[0019] Beneficial effects: Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1) The connecting rod formed by converting the chain of the claw hammer reduces the randomness of the movement points of the claw hammer, thereby reducing the error of the experimental results;

[0021] 2) Compared with the cylindrical barrel in the prior art, the frustum-shaped drum has different cross-sectional areas at both ends. After the specimen is put on, the fabric at the end with a larger diameter is stretched more, and the fabric at the end with a smaller diameter is stretched less. This part of the design can better simulate the snagging and stretching states of elastic fabrics under different human movements, making the test results closer to actual applications;

[0022] 3) When the claw hammer moves left and right in the test system to contact the specimen, and the contact height changes up and down, through the up and down sliding mechanism of the connecting rod designed by the present utility model in the chute, it can ensure that the specimen is evenly stressed when being impacted by the claw hammer, and the design of the chute and the connecting rod reduces the vibration and shaking of the equipment, improving the stability of the entire test system;

[0023] 4) A rotating bearing is provided inside the claw hammer, which can ensure the smooth and accurate rotation of the claw hammer, reducing vibration and noise. Description of the Drawings

[0024] Figure 1 It is a three-dimensional view of the present utility model.

[0025] Figure 2 It is a partial structural schematic diagram of the present utility model.

[0026] Figure 3 It is a side view of the claw hammer translation system of the present utility model.

[0027] Figure 4 It is a front view of the present utility model.

[0028] In the figure: 1. Controller operation display console; 2. Connecting rod; 3. Claw hammer; 4. Drum frustum cylinder; 5. Baffle; 6. Sprocket; 7. Chain; 8. Workbench; 9. Chute; 10. Slide; 11. Synchronous pulley; 12. Synchronous belt. Detailed Embodiment

[0029] The following further describes the present utility model in conjunction with the drawings of the specification, but the present utility model is not limited to the following embodiments.

[0030] The present utility model designs key components such as a controller, a slide, a connecting rod, a claw hammer, and a frustum-shaped drum. This device can simulate the snagging and stretching states of elastic fabrics under different human movements, thereby ensuring the accuracy and reliability of the test results. Specifically:

[0031] 1) Improve test accuracy: By designing the up-and-down sliding mechanism of the roller frustum cylinder and the connecting rod in the chute, ensure that the specimen is evenly stressed when struck by the hammer, reducing the error of the experimental results.

[0032] 2) Simulate real application scenarios: The two ends of the roller frustum cylinder are of different sizes to simulate the stretching degrees of different parts of the human body on the elastic fabric, making the test results closer to the actual application.

[0033] 3) Enhance system stability: Through the sliding design of the connecting rod in the chute, reduce the vibration and shaking of the equipment, improving the stability of the entire test system.

[0034] 4) Expand the scope of application: The roller frustum cylinder is detachable and can be replaced with other shapes to meet different experimental requirements and expand the use range of the device.

[0035] 5) Reduce noise and vibration: A rotating bearing is provided inside the hammer to ensure smooth and accurate rotation of the hammer, reducing vibration and noise.

[0036] As Figures 1-4 shown is a specific embodiment of a snagging performance testing device for elastic fabrics. The snagging performance testing device for elastic fabrics in this embodiment is characterized in that it includes a workbench 8, a horizontally arranged guide rail structure is connected to the workbench 8, at least one sliding table 10 is movably provided on the guide rail structure, three angle-adjustable rods are connected to the sliding table 10, a chute 9 is provided on each rod, a connecting rod 2 is slidably provided in each chute 9 and the upper end of the connecting rod 2 slides in the chute 9, and the lower end of the connecting rod 2 is connected to a hammer 3;

[0037] A set of rolling mechanisms is provided corresponding to each sliding table 10. The rolling mechanisms include two side plates, three synchronously rotatable rollers 4 are connected between the side plates and the rollers 4 are frustum-shaped, the heads and tails of adjacent rollers 4 are arranged in reverse, and the three rollers 4 in the same set of rolling mechanisms respectively contact the three hammers 3 on the corresponding sliding table 10.

[0038] In this application, the roller is detachably installed between the two side plates and can be replaced with other shapes to meet different experimental requirements and have a wider scope of application.

[0039] In a preferred embodiment, each roller 4 is connected to a sprocket 6, the sprockets 6 are located outside the same side plate, the three sprockets 6 are linked by a chain 7, and any one of the rollers 4 in the same set of rolling mechanisms is driven by a first motor.

[0040] In a preferred embodiment, the guide rail structure includes a support table, a guide rail, a lead screw, and a second motor. The guide rail is horizontally connected to the support table. The lead screw is arranged on the support table in parallel with and spaced from the guide rail and is rotatable. The second motor is fixed to one end of the support table and connected to the lead screw to drive the lead screw to rotate. The slide table 10 is threadedly connected to the lead screw and slidably mounted on the guide rail.

[0041] In a preferred embodiment, the guide rail structure includes a secondary synchronous pulley and a primary synchronous pulley 11 driven by a third motor. The primary synchronous pulley 11 and the secondary synchronous pulley are linked by a synchronous belt 12, and the slide table 10 is connected to the synchronous belt 12.

[0042] In a preferred embodiment, a controller 1 is further included, and each motor is communicatively connected to the controller 1.

[0043] In a preferred embodiment, a detachable baffle 5 is connected between the left ends and the right ends of the two side plates respectively.

[0044] In a preferred embodiment, at least two slide tables 10 are movably provided on the guide rail structure.

[0045] In a preferred embodiment, the slide table 10 is connected to the rod member by a pin shaft with a screw.

[0046] In a preferred embodiment, the nail hammer 3 includes a sphere and nails covering the outer peripheral surface of the sphere.

[0047] In a preferred embodiment, the nail hammer 3 is rotatably connected to the lower end of the connecting rod 2, and specifically, it can be realized by a bearing.

[0048] Design principle / Operating mode description:

[0049] The translation speed of the sliding table 10, the rotation speed of the roller 4, and the duration of the entire test are controlled by the controller 1. For example, by setting parameters for the controller 1, when the parameters are set, the third motor will drive the main synchronous pulley 11 to rotate. At the same time, the synchronous belt 12 will drive the sliding table 10 to move left and right as the main synchronous pulley 11 rotates. Three rods with chutes 9 are respectively connected to one sliding table 10, and the rods can be freely adjusted to facilitate the testing of elastic fabrics with different thicknesses. Since the nail hammer 3 will move left and right with the sliding table 10, the contact point between the nail hammer 3 and the roller 4 has a height change. That is, when it contacts the part with a smaller diameter of the roller 4, the horizontal position of the nail hammer 3 becomes lower, and when it contacts the part with a larger diameter of the roller 4, the horizontal position of the nail hammer 3 becomes higher. In order to ensure that the mutual force between the nail hammer 3 and the roller 4 remains consistent, the present utility model also designs a chute 9 to enable the connecting rod 2 to slide up and down therein, so that the force of the nail hammer 3 on the roller 4 is uniform. A rotating bearing is provided inside the nail hammer 3 and is rotatably connected to the lower end of the connecting rod 2, and it will rotate under the action of friction when contacting the test sample. While the nail hammer 3 rotates and moves left and right, the roller 4 will also rotate counterclockwise driven by the sprocket 6. Looking from the right side to the left side of the device, this can perform a comprehensive snagging performance test on the specimen and reduce the randomness of the experimental results.

[0050] A specific test operation:

[0051] Step 1) Cut the specimen according to the specified size and sew it into a cylindrical shape;

[0052] Step 2) Open the baffle 5, put the specimen prepared in Step 1 on the roller 4, and then close the baffle 5;

[0053] Step 3) Adjust the position of the nail hammer 3, specifically by loosening the screws of the pin shaft and adjusting the fastening;

[0054] Step 4) Set specific values such as the translation speed of the nail hammer 3, the rotation speed of the roller 4, the test time, and the force of the nail hammer 3 on the roller 4 on the controller 1. The setting of these values does not involve program design and belongs to the function of the controller itself. This application does not specifically limit the parameters of the program design. As long as there is a conventional controller that centrally controls each motor, those skilled in the art can also use other components for replacement in order to achieve a more intelligent design;

[0055] Step 5) After the test is completed, remove the specimen and rate the snagging degree of the specimen by comparing it with the standard sample.

[0056] The rating method can be manual rating or rating by collecting information through professional vision equipment.

[0057] Finally, it should be noted that the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered as the protection scope of the present invention.

Claims

1. An elastic fabric snagging performance testing device, characterized in that: The invention comprises a workbench (8), the workbench (8) is connected to a transversely arranged guide rail structure, the guide rail structure is provided with at least one movably arranged slide (10), the slide (10) is connected to three angle-adjustable rods, the rods are provided with slide grooves (9), each slide groove (9) is provided with a connecting rod (2) slidably arranged therein, and the upper end of the connecting rod (2) is located in the slide groove (9) and slides therein, and the lower end of the connecting rod (2) is connected to a nail hammer (3); Each slide (10) is provided with a group of rolling mechanisms, the rolling mechanisms comprising two side plates, three rollers (4) capable of synchronous rotation are connected between the side plates, and the rollers (4) are in a truncated cone shape, and the adjacent rollers (4) are arranged head to tail inverted, and the three rollers (4) in the same group of rolling mechanisms respectively contact the three nail hammers (3) on the corresponding slide (10).

2. The elastic fabric snagging performance testing device according to claim 1, characterized in that: The rollers (4) are all connected to a sprocket (6), and the sprocket (6) is located on the outside of the same side plate. The three sprockets (6) are linked by a chain (7), and any roller (4) in the same group of rolling mechanisms is driven by a No. 1 motor.

3. The elastic fabric snagging performance testing device according to claim 2, characterized in that: The guide rail structure comprises a support platform, a guide rail, a screw rod, and a second motor. The guide rail is horizontally connected to the support platform. The screw rod is spaced parallel to the guide rail and is rotatably arranged on the support platform. The second motor is fixed to one end of the support platform and is connected to the screw rod to drive the screw rod to rotate. The slide table (10) is threadedly connected to the screw rod and is slidably installed on the guide rail.

4. The elastic fabric snagging performance testing device according to claim 2, characterized in that: The guide rail structure comprises an auxiliary synchronous wheel and a main synchronous wheel (11) driven by a third motor; the main synchronous wheel (11) and the auxiliary synchronous wheel are linked by a synchronous belt (12); and the slide (10) is connected to the synchronous belt (12).

5. The elastic fabric snagging performance testing device according to claim 3 or 4, characterized in that: It also includes a controller (1), and each motor is communicatively connected to the controller (1).

6. The elastic fabric snagging performance testing device according to claim 3 or 4, characterized in that: A detachable baffle (5) is respectively connected between the left ends and the right ends of the two side plates.

7. The elastic fabric snagging performance testing device according to claim 3 or 4, characterized in that: At least two slide platforms (10) are movably provided on the guide rail structure.

8. The elastic fabric snagging performance testing device according to claim 1, characterized in that: The slide (10) is connected to the rod member via a pin with a screw.

9. The elastic fabric snagging performance testing device according to claim 1, characterized in that: The nail hammer (3) comprises a sphere and nails covering the outer peripheral surface of the sphere.

10. The elastic fabric snagging performance testing device according to claim 1 or 9, characterized in that: The nail hammer (3) is rotatably connected to the lower end of the connecting rod (2).

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