Wear resistance testing device for double-layer corduroy fabric

Abstract

The invention relates to the technical field of fabric quality testing, and discloses a double-layer corduroy fabric wear resistance testing device which comprises a movable track assembly and a driving assembly, two clamping assemblies are arranged on each of the two sides of the top of the movable track assembly, a corduroy double-layer fabric body is clamped between the two clamping assemblies, and the driving assembly is arranged on the movable track assembly. The two clamping assemblies are used for fixing the two ends of a corduroy double-layer fabric body, the two movable track assemblies are distributed in a central symmetry mode with respect to the center of the driving assembly, and a rack is movably clamped to the middle of the top of each movable track assembly; the driving assembly drives the racks on the two sides to move relatively, the tops of the racks are fixedly connected with pushing rollers, and the pushing rollers move along with the racks so as to push the two corduroy double-layer fabric bodies to get close to each other, so that the outer surfaces of the two corduroy double-layer fabric bodies rub against each other.

Description

Technical Field

[0001] The invention relates to the technical field of fabric quality testing, and more specifically, to a double-layer corduroy fabric wear resistance testing device. Background Art

[0002] Fabric wear test is one of the important indicators for evaluating fabric quality. It simulates the friction and wear that the fabric may be subjected to during use, so as to evaluate its durability. Common wear test equipment on the market mainly includes two types: rotary friction tester and planar reciprocating tester. The former evaluates the durability of the fabric by performing rotational friction on the outer surface of the fabric, while the latter focuses on simulating straight-line pulling of the fabric to evaluate its durability.

[0003] Although these two instruments can reflect different types of wear conditions respectively, when it comes to double-layer fabrics, especially corduroy, a product with a complex three-dimensional surface structure, due to the complex interaction mechanism between the fibers inside the double-layer structure, a single rotational friction or plane reciprocating friction cannot simulate the relative displacement effect between the double layers of the double-layer fabric when it is rubbed during actual wearing. As a result, the test data is inconsistent with the wear conditions caused by actual wearing.

[0004] To this end, the present invention provides a double-layer corduroy fabric wear resistance testing device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a double-layer corduroy fabric wear resistance testing device, comprising a movable track assembly and a driving assembly, two clamping assemblies are arranged on both sides of the top of the movable track assembly, a corduroy double-layer fabric body is clamped between the two clamping assemblies, and the two clamping assemblies are used to fix the two ends of the corduroy double-layer fabric body, the movable track assembly has two groups, the two groups of movable track assemblies are centrally symmetrically distributed about the center of the driving assembly, a rack is movably clamped in the middle of the top of each movable track assembly, the driving assembly drives the racks on both sides to move relative to each other, and a pushing roller is fixedly connected to the top of the rack, and the pushing roller moves with the rack to push the two corduroy double-layer fabric bodies to approach each other so that the outer surfaces of the two corduroy double-layer fabric bodies rub against each other.

[0007] The friction condition of the double-layer corduroy fabric when it is stretched straight on the wearer is simulated.

[0008] Furthermore, the clamping assembly includes a fixed roller, the top and bottom of the fixed roller are fixedly connected to a limiting circular block, a mounting groove is provided on the side of the limiting circular block close to the fixed roller, a mounting seat is fixedly installed on the inner side of the limiting circular block mounting groove, a hydraulic push rod is penetrated by the circular movement of the limiting circular block mounting seat, a fixing plate is fixedly connected to the output shaft of the hydraulic push rod, a movable groove is provided on the side of the limiting circular block close to the fixed roller, and the fixed plate moves along the movable groove when the hydraulic push rod drives the fixed plate to approach or move away from the fixed roller, and the height of the fixed plate is the sum of the heights of the two movable grooves and the height of the fixed roller.

[0009] The clamping components clamp the two sides of the corduroy double-layer fabric body so that the corduroy double-layer fabric body is fixed between the two clamping components and is in a straightened state.

[0010] Furthermore, the movable track assembly includes a transverse movable track, a motor mounting seat is fixedly connected between two of the transverse movable tracks, the driving assembly includes a gear, a motor body is fixedly connected to the bottom of the gear, the motor body is fixedly installed in the center of the motor mounting seat, the two racks are distributed on both sides of the gear and the teeth of the racks are meshed with the teeth of the gear.

[0011] Furthermore, there are two transverse moving rails, the outer sides of the two transverse moving rails are fixedly connected with longitudinal moving rails, a transition rail is fixedly connected between the two transverse moving rails, and limiting grooves are provided on the tops of the longitudinal moving rails and the transition rails, and the longitudinal moving rail limiting grooves and the transition rail limiting grooves are used to limit the movement of the rack.

[0012] Furthermore, the bottom of the limiting circular block at the bottom is fixedly connected with a convex limiting block, the transverse moving track includes a track base, and the top of the track base is provided with a convex limiting groove that matches the shape tolerance of the outer side of the convex limiting block.

[0013] The movable track assembly limits the clamping assembly and the rack.

[0014] Furthermore, a return spring is fixedly connected to one side of the convex limit block close to the rail base, and the other end of the return spring is fixedly connected to the side wall of the rail base.

[0015] The reset spring drives the two clamping components to reset to ensure the tension state of the corduroy double-layer fabric body.

[0016] Furthermore, the two fixing plates located at the top of the same transverse moving track are symmetrically distributed about the midpoint of the transverse moving track, and the shape of the fixing plate on one side close to the fixed roller is in conformity with the outer shape of the fixed roller.

[0017] Furthermore, the outer side material of the pushing roller and the outer side material of the fixing roller are both cloth.

[0018] Increasing the friction coefficient between the push roller, the fixing roller and the inside of the corduroy double-layer fabric body can improve the stability of the push roller, the fixing roller and the support for the corduroy double-layer fabric body during the friction process.

[0019] Technical effects and advantages of the present invention: 1. The present invention is provided with a clamping assembly, a rack, a driving assembly and a pushing roller. The clamping assembly clamps the two sides of the corduroy double-layer fabric body so that it is fixed between the two clamping assemblies and is in a straightened state. When the driving assembly drives the two racks to move relative to each other, the pushing roller pushes the two corduroy double-layer fabric bodies to approach each other. The contact positions of the two corduroy double-layer fabric bodies produce relative movement to perform friction detection. During the friction process, the corduroy double-layer fabric body of the frictioned part is only supported and limited by the pushing roller and the clamping assembly on one side. The corduroy double-layer fabric body in the area between the pushing roller and the clamping assembly can still undergo relative displacement, simulating the friction situation of the corduroy double-layer fabric body when it is in a straightened state on the wearer during actual wearing.

[0020] 2. The present invention is provided with a reset spring. After the two corduroy double-layer fabric bodies make initial contact, the motor body repeatedly switches the rotation direction in a small range to control the change in the relative displacement direction of the push rollers. When the push rollers move away from each other, the outer surfaces of the push rollers will separate from the two corduroy double-layer fabric bodies. At this time, the reset spring drives the clamping assembly to reset and keep the corduroy double-layer fabric bodies in a tensioned state at all times, thereby achieving repeated friction between the surfaces of the two corduroy double-layer fabric bodies and ensuring the accuracy of the final friction test.

[0021] 3. The present invention is provided with a clamping assembly, a rack, a driving assembly and a pushing roller. When the driving assembly drives the two racks to move relative to each other, the pushing roller pushes the two corduroy double-layer fabric bodies to approach each other and the two corduroy double-layer fabric bodies are not in contact with each other. During this process, both ends of the corduroy double-layer fabric bodies are always stably clamped by the clamping assembly. As the pushing roller moves, tension detection can be performed to provide more comprehensive test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a stereogram of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the clamping assembly in the present invention; Figure 3 It is a structural schematic diagram of the mobile track assembly in the present invention; Figure 4 yes Figure 1 A partial enlarged view of the middle part; Figure 5It is a schematic diagram of a local structure in the present invention; Figure 6 It is a schematic diagram of the friction test state of the overall structure of the present invention.

[0023] In the figure: 1. Clamping assembly; 101. Limiting circle block; 102. Fixed roller; 103. Fixed plate; 104. Hydraulic push rod; 105. Convex limiting block; 106. Moving groove; 2. Moving track assembly; 201. Horizontal moving track; 2011. Track base; 2012. Convex limiting groove; 202. Motor mounting seat; 203. Longitudinal moving track; 204. Transition track; 300. Corduroy double-layer fabric body; 4. Rack; 5. Driving assembly; 501. Gear; 502. Motor body; 6. Push roller; 7. Reset spring. DETAILED DESCRIPTION

[0024] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0025] like Figures 1 to 6 As shown in the figure, a double-layer corduroy fabric wear test device according to the embodiment of the present invention is provided. Figure 1 and Figure 6 , including a moving track component 2 and a driving component 5, two clamping components 1 are arranged on both sides of the top of the moving track component 2, a corduroy double-layer fabric body 300 is clamped between the two clamping components 1, and the two clamping components 1 are used to fix the two ends of the corduroy double-layer fabric body 300, and there are two groups of moving track components 2, and the two groups of moving track components 2 are centrally symmetrically distributed about the center of the driving component 5, and a rack 4 is movably clamped in the middle of the top of each moving track component 2, and the driving component 5 drives the racks 4 on both sides to move relative to each other, and a pushing roller 6 is fixedly connected to the top of the rack 4, and the pushing roller 6 moves with the rack 4 to push the two corduroy double-layer fabric bodies 300 to approach each other so that the outer surfaces of the two corduroy double-layer fabric bodies 300 rub against each other; Specifically, the clamping assembly 1 clamps the two sides of the corduroy double-layer fabric body 300 so that it is fixed between the two clamping assemblies 1 and is in a straightened state. In the initial state, Figure 1As shown, the push roller 6 is located outside the two corduroy double-layer fabric bodies 300. When the driving component 5 drives the two racks 4 to move relative to each other, the push roller 6 pushes the two corduroy double-layer fabric bodies 300 to move closer to each other. During this process, both ends of the corduroy double-layer fabric bodies 300 are always stably clamped by the clamping component 1. As the push roller 6 moves, tension detection is performed. Figure 6 As shown, when two corduroy double-layer fabric bodies 300 are in contact, the two corduroy double-layer fabric bodies 300 fit together at adjacent positions, and at this time, the pushing roller 6 continues to move in the same direction, so that the contact positions of the two corduroy double-layer fabric bodies 300 produce relative displacement, and friction detection can be performed. In the friction process, the rubbed part of the corduroy double-layer fabric body 300 is only supported and limited by the pushing roller 6 and the clamping component 1 on one side, and the double-layer fabric of the corduroy double-layer fabric body 300 in the area between the pushing roller 6 and the clamping component 1 can still undergo relative displacement, simulating the friction situation when the corduroy double-layer fabric body 300 is in a stretched state on the wearer during actual wearing.

[0026] In a preferred embodiment, the clamping assembly 1 includes a fixed roller 102, the top and bottom of the fixed roller 102 are fixedly connected to a limiting circular block 101, a mounting groove is provided on the side of the limiting circular block 101 close to the fixed roller 102, a mounting seat is fixedly installed on the inner side of the mounting groove of the limiting circular block 101, a hydraulic push rod 104 is provided for the circular movement of the mounting seat of the limiting circular block 101, the output shaft of the hydraulic push rod 104 is fixedly connected to a fixed plate 103, a moving groove 106 is provided on the side of the limiting circular block 101 close to the fixed roller 102, and the fixed plate 103 moves along the moving groove 106 when the hydraulic push rod 104 drives the fixed plate 103 to approach or move away from the fixed roller 102, and the height of the fixed plate 103 is the sum of the heights of the two moving grooves 106 and the height of the fixed roller 102; Specifically, the hydraulic push rod 104 is started to control the extension or shortening of the output shaft of the hydraulic push rod 104, thereby driving the fixed plate 103 along the movable groove 106 away from or close to the outer side of the fixed roller 102. Before installing the corduroy double-layer fabric body 300, the fixed plate 103 must be controlled to be away from the surface of the fixed roller 102 so that there is a sufficient distance between the fixed roller 102 and the fixed plate 103 to pass through the corduroy double-layer fabric body 300. After fixing one end of the corduroy double-layer fabric body 300, the hydraulic push rod 104 is started again to drive the fixed plate 103 close to the fixed roller 102, thereby stably clamping one end of the corduroy double-layer fabric body 300, and repeating the above operation on the other end until the two ends of the corduroy double-layer fabric body 300 are stably fixed. The hydraulic push rod 104 is a well-known technology and will not be repeated here.

[0027] In a preferred embodiment, the moving track assembly 2 includes a transverse moving track 201, a motor mounting seat 202 is fixedly connected between the two transverse moving tracks 201, the driving assembly 5 includes a gear 501, a motor body 502 is fixedly connected to the bottom of the gear 501, the motor body 502 is fixedly installed in the center of the motor mounting seat 202, and two racks 4 are distributed on both sides of the gear 501, and the teeth of the rack 4 are meshed with the teeth of the gear 501; Specifically, after the two corduroy double-layer fabric bodies 300 make initial contact, the push roller 6 continues to move forward for a distance to expand the contact area of ​​the two corduroy double-layer fabric bodies 300, and then the control system drives the motor body 502 to repeatedly and slightly switch the rotation direction so that the gear 501 repeatedly switches the rotation direction, so that the racks 4 on both sides repeatedly switch the moving direction, so as to control the change in the relative displacement direction of the push roller 6.

[0028] In a preferred embodiment, there are two transverse moving rails 201, the outer sides of the two transverse moving rails 201 are fixedly connected with longitudinal moving rails 203, and a transition rail 204 is fixedly connected between the two transverse moving rails 201. The tops of the longitudinal moving rails 203 and the transition rails 204 are provided with limiting grooves, and the limiting grooves of the longitudinal moving rails 203 and the limiting grooves of the transition rails 204 are used to limit the movement of the rack 4; Specifically, the transverse moving track 201 limits the clamping assembly 1, and the longitudinal moving track 203 limits the rack 4. When the rack 4 moves under the drive of the driving assembly 5, the bottom of the rack 4 moves along the limiting groove of the longitudinal moving track 203 and the limiting groove of the transition track 204.

[0029] In a preferred embodiment, the bottom of the limiting circular block 101 at the bottom is fixedly connected with a convex limiting block 105, and the transverse moving track 201 includes a track base 2011, and the top of the track base 2011 is provided with a convex limiting groove 2012 that matches the outer shape tolerance of the convex limiting block 105; Specifically, the push roller 6 follows the movement of the rack 4 to push the two corduroy double-layer fabric bodies 300 to move. Under the traction of the corduroy double-layer fabric bodies 300, the clamping components 1 on both sides are driven to approach each other. During the process of the clamping components 1 approaching each other, they move along the convex limiting groove 2012.

[0030] In a preferred embodiment, a return spring 7 is fixedly connected to one side of the convex stopper 105 close to the rail base 2011, and the other end of the return spring 7 is fixedly connected to the side wall of the rail base 2011; Specifically, after the two corduroy double-layer fabric bodies 300 make initial contact, the motor body 502 repeatedly switches the rotation direction in small amplitudes to control the change in the relative displacement direction of the push roller 6. When the push rollers 6 move away from each other, the outer surfaces of the push rollers 6 will separate from the two corduroy double-layer fabric bodies 300. At this time, the reset spring 7 drives the clamping assembly 1 to reset and keep the corduroy double-layer fabric bodies 300 always in a tensioned state, thereby achieving repeated friction between the surfaces of the two corduroy double-layer fabric bodies 300 to ensure the accuracy of the final friction test.

[0031] In a preferred embodiment, the two fixing plates 103 located at the top of the same transverse moving track 201 are symmetrically distributed about the midpoint of the transverse moving track 201, and the shape of the fixing plate 103 close to the fixing roller 102 is in line with the outer shape of the fixing roller 102; Specifically, the symmetrical distribution of the fixing plates 103 can make the clamping force on both sides of the corduroy double-layer fabric body 300 more uniform. The pushing roller 6 adjacent to the transverse moving track 201 is located at the center of the transverse moving track 201. When the pushing roller 6 pushes the corduroy double-layer fabric body 300 to move, the displacements generated by the pulling and clamping components 1 on both sides of the corduroy double-layer fabric body 300 are the same.

[0032] In a preferred embodiment, the outer surface material of the push roller 6 and the outer surface material of the fixed roller 102 are both cloth.

[0033] Working principle: Before the wear test, the hydraulic push rod 104 is first started to control the extension or shortening of the output shaft of the hydraulic push rod 104 so as to drive the fixed plate 103 along the moving groove 106 away from or close to the outer side of the fixed roller 102. Before installing the corduroy double-layer fabric body 300, the fixed plate 103 must be controlled to be away from the surface of the fixed roller 102 so that there is a sufficient distance between the fixed roller 102 and the fixed plate 103 to pass through the corduroy double-layer fabric body 300. After fixing one end of the corduroy double-layer fabric body 300, the hydraulic push rod 104 is started again to drive the fixed plate 103 close to the fixed roller 102, so as to stably clamp one end of the corduroy double-layer fabric body 300. Repeat the above operation at the other end until the two ends of the corduroy double-layer fabric body 300 are stably fixed. The clamping assembly 1 clamps the two sides of the corduroy double-layer fabric body 300 so that it is fixed between the two clamping assemblies 1 and is in a straightened state. In the initial state, if Figure 1 As shown, the push roller 6 is located outside the two corduroy double-layer fabric bodies 300. When the driving component 5 drives the two racks 4 to move relative to each other, the push roller 6 pushes the two corduroy double-layer fabric bodies 300 to move closer to each other. During this process, both ends of the corduroy double-layer fabric bodies 300 are always stably clamped by the clamping component 1. As the push roller 6 moves, tension detection is performed. Figure 6As shown, when two corduroy double-layer fabric bodies 300 are in contact, the adjacent parts of the two corduroy double-layer fabric bodies 300 are just fitted together, and at this time, the push roller 6 continues to move in the same direction, so that the contact positions of the two corduroy double-layer fabric bodies 300 produce relative displacement, and friction detection can be performed. In the friction process, the corduroy double-layer fabric body 300 of the rubbed part is only supported and limited by the push roller 6 and the clamping assembly 1 on one side, and the corduroy double-layer fabric body 300 in the area between the push roller 6 and the clamping assembly 1 can still undergo relative displacement, simulating the friction situation of the corduroy double-layer fabric body 300 in a stretched state on the wearer during actual wearing; After the two corduroy double-layer fabric bodies 300 make initial contact, the motor body 502 repeatedly switches the rotation direction in small amplitudes to control the change in the relative displacement direction of the push roller 6. When the push rollers 6 move away from each other, the outer surface of the push roller 6 will separate from the two corduroy double-layer fabric bodies 300. At this time, the reset spring 7 drives the clamping assembly 1 to reset and keep the corduroy double-layer fabric body 300 always in a tensioned state, thereby achieving repeated friction between the surfaces of the two corduroy double-layer fabric bodies 300 for wear resistance testing.

[0034] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A double-layer corduroy fabric wear resistance testing device, characterized in that: The invention comprises a movable track component (2) and a driving component (5), wherein two clamping components (1) are arranged on both sides of the top of the movable track component (2), a corduroy double-layer fabric body (300) is clamped between the two clamping components (1), and the two clamping components (1) are used to fix the two ends of the corduroy double-layer fabric body (300), and the movable track component (2) has two groups, and the two groups of movable track components (2) are centrally symmetrically distributed about the center of the driving component (5), and the top of each movable track component (2) A rack (4) is movably connected in the middle, and the driving assembly (5) drives the racks (4) on both sides to move relative to each other. A pushing roller (6) is fixedly connected to the top of the rack (4), and the pushing roller (6) moves following the rack (4) to push the two corduroy double-layer fabric bodies (300) closer to each other so that the outer surfaces of the two corduroy double-layer fabric bodies (300) rub against each other. A reset spring (7) is arranged on the outer side of the clamping assembly (1), and the reset spring (7) is used to pull the clamping assembly (1) to reset.

2. A double-layer corduroy fabric wear resistance testing device according to claim 1, characterized in that: The clamping assembly (1) comprises a fixed roller (102), the top and bottom of the fixed roller (102) are fixedly connected to a limiting circular block (101), a mounting groove is provided on a side of the limiting circular block (101) close to the fixed roller (102), a mounting seat is fixedly installed on the inner side of the mounting groove of the limiting circular block (101), a hydraulic push rod (104) is provided for circular movement of the mounting seat of the limiting circular block (101), an output shaft of the hydraulic push rod (104) is fixedly connected to a fixing plate (103), a moving groove (106) is provided on a side of the limiting circular block (101) close to the fixed roller (102), the fixing plate (103) moves along the moving groove (106) when the hydraulic push rod (104) drives the fixing plate (103) to approach or move away from the fixed roller (102), and the height of the fixing plate (103) is the sum of the heights of the two moving grooves (106) and the height of the fixed roller (102).

3. A double-layer corduroy fabric wear resistance testing device according to claim 2, characterized in that: The movable track assembly (2) comprises a transverse movable track (201), a motor mounting seat (202) being fixedly connected between two transverse movable tracks (201), the driving assembly (5) comprising a gear (501), a motor body (502) being fixedly connected to the bottom of the gear (501), the motor body (502) being fixedly mounted at the center of the motor mounting seat (202), and two racks (4) being distributed on both sides of the gear (501), and the teeth of the racks (4) meshing with the teeth of the gear (501).

4. A double-layer corduroy fabric wear resistance testing device according to claim 3, characterized in that: There are two transverse moving rails (201), the outer sides of the two transverse moving rails (201) are fixedly connected to longitudinal moving rails (203), a transition rail (204) is fixedly connected between the two transverse moving rails (201), and limiting grooves are provided on the tops of the longitudinal moving rails (203) and the transition rails (204), and the limiting grooves of the longitudinal moving rails (203) and the limiting grooves of the transition rails (204) are used to limit the movement of the rack (4).

5. A double-layer corduroy fabric wear resistance testing device according to claim 4, characterized in that: The bottom of the limiting circular block (101) located at the bottom is fixedly connected to a convex limiting block (105); the transverse moving track (201) comprises a track base (2011); the top of the track base (2011) is provided with a convex limiting groove (2012) matching the shape tolerance of the outer side of the convex limiting block (105); the side of the convex limiting block (105) close to the track base (2011) is fixedly connected to a return spring (7); the other end of the return spring (7) is fixedly connected to the side wall of the track base (2011).

6. A double-layer corduroy fabric wear resistance testing device according to claim 3, characterized in that: The two fixing plates (103) located at the top of the same transverse moving track (201) are symmetrically distributed about the midpoint of the transverse moving track (201), and the shape of the fixing plate (103) on a side close to the fixing roller (102) fits the shape of the outer side of the fixing roller (102).

7. A double-layer corduroy fabric wear resistance testing device according to claim 2, characterized in that: The outer surface material of the pushing roller (6) and the outer surface material of the fixed roller (102) are both cloth.

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