Fabric seam slippage testing device

Abstract

The present application relates to a fabric seam slippage testing device, comprising a frame, a linear drive assembly provided on the frame, a support block slidably installed on the frame, an electric push rod provided on the support block, a mounting frame provided at one end of the electric push rod, a clamping assembly provided on the mounting frame, the clamping assembly including a positioning piece, a clamping mechanism and a pre-clamping piece, and a detection mechanism provided on the frame; before the test, the two ends of the fabric in the length direction are respectively placed on the positioning pieces on both sides, the pre-clamping pieces pre-clamp the fabric, the position of the fabric is fixed, the clamping mechanism clamps the fabric, the two ends of the fabric are disengaged from the positioning pieces, the fabric is clamped, and the detection mechanism measures the fabric seam during the test. After the experiment, the clamping mechanism and the pre-clamping piece are loosened, and the fabric is removed. Before the test, the fabric is easy to align and can be automatically clamped. The present application has the effect of convenient fabric clamping operation.

Description

Technical Field

[0001] The present application relates to the field of fabric seam testing equipment, and in particular to a fabric seam slippage testing device. Background Art

[0002] Seam slippage is the phenomenon of seam displacement or detachment of the seam when a fabric seam is subjected to tensile forces. This can cause material separation at the seam, reducing the strength and durability of the seam. Seam slippage is an important indicator of fabric seam performance. For applications that require tensile forces, such as clothing or home textiles, testing the seam's resistance to seam slippage is crucial.

[0003] In the related art, reference can be made to the Chinese utility model patent with authorization announcement number CN218546359U, which discloses a device for detecting the strength of fabric seams, including a workbench, a control switch and a display screen are provided on one side of the workbench, a U-shaped plate is fixedly connected to the top of the workbench, a mounting groove is provided on one side of the U-shaped plate, and a motor is fixedly installed on the top of the U-shaped plate. Through the setting of the clamping assembly, the fabric seam sample can be quickly clamped, the operation is simple, and the detection efficiency is improved.

[0004] In the above-mentioned related technologies, during the test, the fabric to be tested needs to be manually placed on the clamp, and it needs to be manually aligned. After alignment, the fabric is flattened and the position of the clamp on the other side is adjusted so that the seam is located in the middle of the two clamps, and then the two sides of the fabric are clamped. Manual adjustment has large errors and the operation of clamping the fabric is inconvenient. Summary of the Invention

[0005] In order to solve the problem of large adjustment errors and inconvenient operation of fabric clamping when manually clamping the fabric during testing, the present application provides a fabric seam slippage testing device.

[0006] The fabric seam slippage testing device provided in this application adopts the following technical solution:

[0007] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod of said wood-planer; and said bolt has a round shank to contact with said linking rod of said wood-planer.

[0008] By adopting the above technical solution, the distance between the positioning pieces on both sides is adjusted before the test, and the two ends of the fabric in the length direction are placed on the positioning pieces on both sides respectively. At this time, the pre-clamping pieces pre-clamp the fabric. At this time, the fabric position is fixed, and the clamping mechanism clamps the fabric. The two ends of the fabric are released from the positioning pieces, and the two sides of the fabric are clamped to start the test. During the test, the force sensor synchronously provides the tension data on both sides, and the detection mechanism measures the fabric seam. After the experiment, the clamping mechanism and the pre-clamping pieces are loosened, and the fabric is removed. Before the test, the fabric is positioned at the positioning pieces at both ends. The fabric is easy to align and can be clamped automatically, and the fabric clamping operation is more convenient.

[0009] Optionally, the clamping mechanism includes an upper pressure plate and a lower pressure plate, and the upper pressure plate and the lower pressure plate are both slidably mounted on the mounting frame and arranged relative to each other. The mounting frame is provided with a first driving member for driving the upper pressure plate and the lower pressure plate to slide relative to each other, and the upper pressure plate is provided with a plurality of first clamping blocks, and the lower pressure plate is provided with a plurality of second clamping blocks, and the positions of the first clamping blocks and the second clamping blocks are staggered.

[0010] By adopting the above technical solution, when the cloth is pre-positioned, the first driving member drives the upper pressure plate and the lower pressure plate to move relative to each other. At this time, the first pressing block and the second pressing block push and press the cloth. The cloth is embedded in a serpentine shape between the first pressing block and the second pressing block. The cloth is clamped, and the clamping effect on the cloth is better.

[0011] Optionally, the first driving member includes a first motor and a first screw, the first screw is rotatably mounted on the mounting frame, the first motor is arranged on the mounting frame and the first motor drives the first screw to rotate, the first screw is provided with two opposite thread sections, and the upper pressure plate and the lower pressure plate are respectively threadedly connected to the first screw at two opposite thread sections.

[0012] By adopting the above technical solution, the first motor drives the first screw to rotate, and the first screw drives the upper pressing plate and the lower pressing plate to move in opposite directions or toward each other, so the driving and pressing operation is more convenient.

[0013] Optionally, an adjusting member is provided on the upper pressure plate, and the adjusting member includes an adjusting screw and a push plate. A receiving groove is provided in the upper pressure plate, and the push plate is slidably installed in the receiving groove of the upper pressure plate, and the adjusting screw is threadedly installed on the upper pressure plate, one end of the adjusting screw is located in the receiving groove and is rotatably connected to one side of the push plate, the first clamping block is slidably installed on the upper pressure plate, and the first clamping block is connected to one side of the push plate, and the lower pressure plate is provided with the same adjusting member as the upper pressure plate.

[0014] By adopting the above technical solution, when clamping fabrics of different materials, the adjusting screw is rotated to drive the push plate to slide, and the push plate drives the first pressing block to move, and the position of the first pressing block on one side of the upper pressing plate is adjusted. At the same time, the position of the second pressing block is adjusted. Fabrics of different materials have different hardness and softness, and the degree of bending of the fabric between the first pressing block and the second pressing block is adjusted, which is suitable for clamping and clamping fabrics of different materials.

[0015] Optionally, the positioning member includes a pressure roller and a connecting block, two pressure rollers are provided and arranged parallel to each other, the side of the cloth is placed between the two pressure rollers, a sliding rod is slidably installed on the mounting frame, the connecting block is arranged at one end of the sliding rod, both ends of the pressure roller are rotatably connected to the connecting block, a first spring is provided on the sliding rod, and one end of the first spring is connected to the connecting block.

[0016] By adopting the above technical solution, the side edge of the cloth is placed between the upper and lower pressure rollers. At this time, the first spring pushes the pressure roller to press the side edge of the cloth. After both sides of the cloth are pressed at the same time, the pre-clamping part pre-clamps the cloth, making the positioning operation of the cloth more convenient.

[0017] Optionally, the pre-clamping member includes a pre-clamping plate, which is slidably mounted on the mounting frame. There are two pre-clamping plates distributed parallel to each other, and the mounting frame is provided with a second driving member on both sides of the pre-clamping plate to drive the pre-clamping plate to slide.

[0018] By adopting the above technical solution, the second driving member drives the upper and lower pre-clamping plates to slide, pre-clamp the cloth, and then clamp the cloth after pre-clamping. When clamping the cloth, the cloth seam is not easily deviated.

[0019] Optionally, the second driving member includes a rotating shaft and a rotating rod, the rotating shaft is rotatably mounted on the mounting frame, the rotating rod is arranged at one end of the rotating shaft and is vertically connected to the rotating shaft, a connecting rod is rotatably mounted at one end of the rotating rod, one end of the connecting rod is rotatably connected to one side of the pre-clamping plate, and a rotating member for driving the rotating shaft to rotate is provided on the mounting frame.

[0020] By adopting the above technical solution, the rotation of the rotating shaft drives the rotating rod to rotate, the rotating rod pulls the connecting rod and then drives the upper and lower pre-clamping plates to slide relative to each other, while driving the upper and lower pre-clamping plates to move, and the driving operation is more convenient.

[0021] Optionally, the rotating part includes a gear and a rack, the gear is arranged on the rotating shaft and is coaxially connected to the rotating shaft, the rack is slidably installed on the mounting frame and engages with one side of the gear, and a driving cylinder is provided on the mounting frame, and one end of the piston rod of the driving cylinder is connected to one end of the rack.

[0022] By adopting the above technical solution, one end of the cylinder piston rod is driven to drive the rack to slide, the rack drives the gear to rotate, the gear drives the rotating shaft to rotate and then drives the pre-clamping plate to move, so that the pre-clamping plate can be locked.

[0023] Optionally, a connecting rod is rotatably installed on one side of the pre-clamping plate, and a thread is provided on the connecting rod. A slider is slidably installed on one side of the pre-clamping plate, and the slider is threadedly connected to the connecting rod. One end of the connecting rod is rotatably connected to the slider, and a second spring is provided on the mounting frame, and one end of the second spring is connected to a side surface of the pre-clamping plate.

[0024] By adopting the above technical solution, when pre-clamping fabrics of different thicknesses, the connecting rod is rotated to drive the slider to slide and adjust the position of the slider. The connecting rod rotates and pulls the slider to drive the pre-clamping plate to move. The pre-clamping plate clamps the fabric. The second spring presses the pre-clamping plate tightly. The position of the pre-clamping plate is adjusted to adjust the clamping effect on the fabric. It is suitable for pre-clamping fabrics of different thicknesses.

[0025] Optionally, the detection mechanism includes a camera and a moving block, a bracket is provided on the frame, the moving block is slidably installed on the bracket, the camera is provided on the moving block, the camera is connected to a computer, and a linear drive mechanism for adjusting the position of the moving block is provided on the bracket.

[0026] By adopting the above technical solution, the linear drive mechanism drives the moving block to move and then drives the camera to move, adjusts the position of the camera, scans and photographs the joints, and transmits them to the computer for measurement analysis, with a small error in the measurement results.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Adjust the distance between the pressure rollers on both sides, and place the two ends of the fabric in the length direction on the pressure rollers on both sides respectively. At this time, the pre-clamping plate pre-clamps the fabric, the fabric position is fixed, and the clamping mechanism clamps the fabric. The two ends of the fabric are released from the pressure rollers, and the two sides of the fabric are clamped. The test begins. During the test, the force sensor synchronously provides the tension data on both sides, and the detection mechanism measures the fabric seam. After the experiment, the clamping mechanism and the pre-clamping parts are loosened, and the fabric is removed. Before the test, the fabric is easy to align and can be automatically clamped, and the fabric clamping operation is relatively convenient.

[0029] 2. The connecting rod rotates and pulls the slider to drive the pre-clamping plate to move. The pre-clamping plate clamps the fabric. The position of the slider on the connecting rod is adjusted, and the second spring presses the pre-clamping plate tightly. It is suitable for pre-clamping fabrics of different thicknesses.

[0030] 3. The linear drive mechanism drives the moving block to move and then drives the camera to move, adjust the position of the camera, scan and take pictures of the joints, and then transmit them to the computer for measurement analysis. The measurement results have a small error. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of this application.

[0032] Figure 2 It is a cross-sectional view of the mounting frame of the present application along the length direction.

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the mounting frame and the clamping assembly of the present application.

[0034] Figure 4 It is an enlarged schematic diagram of the three-dimensional structure of part B of this application.

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of one side of the pre-clamping plate of the present application.

[0036] Figure 6 It is an enlarged cross-sectional view of part A of this application.

[0037] Figure 7 It is a schematic diagram of the three-dimensional structure of the detection mechanism of this application.

[0038] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0039] Reference numerals: 1, frame; 11, linear drive assembly; 111, first screw rod; 112, linear drive motor; 12, support block; 13, electric push rod; 131, force sensor; 14, bracket; 2, mounting frame; 21, slide rod; 211, first spring; 22, second drive member; 221, rotating shaft; 222, rotating rod; 223, connecting rod; 23, rotating member; 231, gear; 232, rack; 24, driving cylinder; 25, second spring; 26, first drive member; 261, First motor; 262, first screw; 3, positioning member; 31, pressure roller; 32, connecting block; 4, clamping mechanism; 41, upper pressure plate; 411, first pressing block; 42, lower pressure plate; 421, second pressing block; 5, pre-clamping member; 51, pre-clamping plate; 511, connecting rod; 512, slider; 6, detection mechanism; 61, camera; 62, moving block; 7, adjusting member; 71, adjusting screw; 72, pushing plate; 8, linear drive mechanism; 81, linear drive motor; 82, second screw. DETAILED DESCRIPTION

[0040] The present application is further described in detail below with reference to the accompanying drawings.

[0041] The present application discloses a fabric seam slippage testing device, referring to Figure 1 , including a frame 1, a linear drive assembly 11 is provided on the frame 1, the linear drive assembly 11 includes a first screw rod 111 and a linear drive motor 112, the first screw rod 111 is rotatably mounted on the frame 1 and is arranged along the length direction of the frame 1, the linear drive motor 112 is arranged at one end of the frame 1, the first screw rod 111 is connected to the output shaft of the linear drive motor 112, a support block 12 is slidably installed on the frame 1, the support block 12 is distributed along the width direction of the frame 1 and slides along the length direction of the frame 1, the support block 12 is provided with two and is relatively distributed, two opposite sections of threads are provided on the first screw rod 111, the two support blocks 12 are threadedly connected to the first screw rod 111 at the two sections of threads respectively, the linear drive motor 112 drives the first screw rod 111 and then drives the support block 12 to slide, thereby adjusting the position distance between the two support blocks 12.

[0042] Reference Figure 1 The support block 12 is located on the opposite side and is provided with an electric push rod 13. The electric push rod 13 is arranged along the length direction of the frame 1. A force sensor 131 is provided on the electric push rod 13. The force sensor 131 is connected to the computer. A mounting frame 2 is provided at one end of the push rod of the electric push rod 13. The mounting frame 2 is arranged horizontally. A clamping assembly is provided on the mounting frame 2. The clamping assemblies on the mounting frames 2 on both sides are arranged opposite to each other, and the two sides of the cloth are clamped at the clamping assemblies on both sides respectively.

[0043] Reference Figure 2 and Figure 3The clamping assembly includes a positioning member 3, a clamping mechanism 4 and a pre-clamping member 5. The positioning member 3 is arranged on the mounting frame 2 and is located on the side facing the electric push rod 13. The side edge of the cloth is located at the positioning member 3. The clamping mechanism 4 is arranged on the mounting frame 2 and is located on one side of the positioning member 3. The pre-clamping member 5 is arranged on the mounting frame 2 and is located on the side of the clamping mechanism 4 away from the positioning member 3. A detection mechanism 6 for detecting gaps is provided on the frame 1, and the detection mechanism 6 is connected to the computer. The two ends of the fabric in the length direction are respectively placed on the positioning parts 3 on both sides. At this time, the pre-clamping parts 5 pre-clamp the fabric, the fabric position is fixed, the clamping mechanism 4 clamps the fabric, and the two ends of the fabric are released from the positioning parts 3. The fabric is clamped for testing. During the test, the force sensor 131 synchronously provides the tension data on both sides, and the detection mechanism 6 measures the fabric seam. After the experiment, the clamping mechanism 4 and the pre-clamping parts 5 are loosened, and the fabric is removed. Before the test, the fabric is easy to align and can be automatically clamped, and the fabric clamping operation is more convenient.

[0044] Reference Figure 4 The positioning member 3 includes a pressure roller 31 and a connecting block 32. A slide bar 21 is slidably mounted on the mounting frame 2. The connecting block 32 is located at one end of the slide bar 21. Both ends of the pressure roller 31 are rotatably connected to the connecting block 32. A first spring 211 is sleeved around the slide bar 21, one end of which is connected to the connecting block 32. Two pressure rollers 31 are provided, arranged parallel to each other. The side edge of the fabric is placed between the upper and lower pressure rollers 31. The first spring 211 pushes the pressure rollers 31 to compress the fabric side edge. After both sides of the fabric are simultaneously compressed, the pre-clamping member 5 pre-clamps the fabric.

[0045] Reference Figure 5 The pre-clamping member 5 includes a pre-clamping plate 51, which is vertically slidably mounted on the side of the mounting frame 2 away from the pressure roller 31. Two pre-clamping plates 51 are horizontally arranged and distributed parallel to each other. A second driving member 22 is arranged on both sides of the pre-clamping plate 51 in the width direction of the mounting frame 2. The second driving member 22 drives the upper and lower pre-clamping plates 51 to slide to pre-clamp the fabric.

[0046] Reference Figure 5 The second driving member 22 includes a rotating shaft 221 and a rotating rod 222. The rotating shaft 221 is rotatably mounted on the mounting frame 2. The rotating rod 222 is disposed at the end of the rotating shaft 221 facing away from the mounting frame 2 and is perpendicular to the rotating shaft 221. A connecting rod 223 is rotatably mounted at one end of the rotating rod 222. One end of the connecting rod 223 is rotatably connected to one side of the pre-clamping plate 51. The rotation of the rotating shaft 221 drives the rotating rod 222 to rotate. The rotating rod 222 pulls the connecting rod 223, thereby driving the upper and lower pre-clamping plates 51 to slide relative to each other, thereby driving the upper and lower pre-clamping plates 51 to move.

[0047] Reference Figure 5The mounting frame 2 is provided with a rotating member 23, which includes a gear 231 and a rack 232. The gear 231 is provided on and coaxial with the rotating shaft 221. The rack 232 is vertically slidably mounted on the mounting frame 2, with one side of the rack 232 meshing with one side of the gear 231. A driving cylinder 24 is vertically provided at the bottom of the mounting frame 2, and one end of the piston rod of the driving cylinder 24 is connected to one end of the rack 232. The piston rod of the driving cylinder 24 drives the rack 232 to slide, and the rack 232 drives the gear 231 to rotate. The gear 231 drives the rotating shaft 221 to rotate, thereby driving the pre-clamping plate 51 to move, thereby locking the pre-clamping plate 51.

[0048] Reference Figure 5 The pre-clamping plate 51 is located on the side of the rotating shaft 221 and is vertically rotatably mounted with a connecting rod 511. The connecting rod 511 is provided with a thread. A slider 512 is vertically slidably mounted on one side of the pre-clamping plate 51. The slider 512 is threadedly connected to the connecting rod 511. One end of the connecting rod 223 is rotatably connected to a side surface of the slider 512. Four second springs 25 are provided on the mounting frame 2. One end of the second spring 25 is connected to a side surface of the pre-clamping plate 51. Second springs 25 are provided on the upper and lower pre-clamping plates 51 of the mounting frame 2. When pre-clamping fabrics of different thicknesses, the connecting rod 511 is rotated to drive the slider 512 to slide and adjust the position of the slider 512. The connecting rod 223 rotates and pulls the slider 512 to drive the pre-clamping plate 51 to move. The pre-clamping plate 51 clamps the fabric. The second spring 25 presses the pre-clamping plate 51 tightly. Adjusting the position of the pre-clamping plate 51 and thus adjusting the clamping effect on the fabric are achieved.

[0049] Reference Figure 3 and Figure 6 The clamping mechanism 4 includes an upper pressing plate 41 and a lower pressing plate 42, which are both slidably mounted on the mounting frame 2. The upper pressing plate 41 and the lower pressing plate 42 are horizontally arranged and relatively distributed up and down. A first driving member 26 is provided on the mounting frame 2. The first driving member 26 includes a first motor 261 and a first screw 262. The first screw 262 is vertically rotatably mounted on the mounting frame 2. The first motor 261 is arranged on the mounting frame 2 and the first motor 261 drives the first screw 262 to rotate. The first screw 262 is provided with two opposite sections of threads. The upper pressing plate 41 and the lower pressing plate 42 are respectively threadedly connected to the first screw 262 at the two sections of threads. The first motor 261 drives the first screw 262 to rotate, and the first screw 262 drives the upper pressing plate 41 and the lower pressing plate 42 to move oppositely or toward each other.

[0050] Reference Figure 6The upper pressing plate 41 is provided with a plurality of first pressing blocks 411, which are distributed along the length of the upper pressing plate 41. The lower pressing plate 42 is provided with a plurality of second pressing blocks 421, which are distributed along the length of the lower pressing plate 42. The first pressing blocks 411 and the second pressing blocks 421 are staggered. When the upper and lower pressing plates 41 and 42 move toward each other, the first and second pressing blocks 411 and 421 push and compress the fabric, which is embedded in a serpentine shape between the first and second pressing blocks 411 and 421, clamping the fabric tightly and preventing it from loosening.

[0051] Reference Figure 6 The lock body 71 is fixed with the lock member 71a and the lock member 72b, and the lock member 7a is fixed with the handle 74b, so that the lock member 7a can be locked. When clamping fabrics of different materials, the adjusting screw 71 is rotated to drive the push plate 72 to slide, and the push plate 72 drives the first pressing block 411 to move, and the position of the first pressing block 411 on one side of the upper pressing plate 41 is adjusted. At the same time, the position of the second pressing block 421 is adjusted. Fabrics of different materials have different hardness and softness, and the degree of bending of the fabric between the first pressing block 411 and the second pressing block 421 is adjusted, which is suitable for clamping fabrics of different materials.

[0052] Reference Figure 7 The detection mechanism 6 includes a camera 61 and a moving block 62. A bracket 14 is provided in the middle of the frame 1. The bracket 14 is distributed along the width direction of the frame 1. The moving block 62 is slidably mounted on the bracket 14. A linear drive mechanism 8 is provided on the bracket 14. The linear drive mechanism 8 includes a linear drive motor 81 and a second screw rod 82. The second screw rod 82 is distributed along the width direction of the bracket 14. The moving block 62 is threadedly connected to the second screw rod 82. The camera 61 is set on the lower side of the moving block 62, and the camera 61 is connected to the computer. The second screw rod 82 drives the moving block 62 to move, thereby driving the camera 61 to move. The position of the camera 61 is adjusted, and the camera 61 slides along the length direction of the joint to take pictures. After scanning and photographing the joint, the pictures are transmitted to the computer for measurement analysis. The measurement results have a small error.

[0053] The implementation principle of a fabric seam slippage testing device in an embodiment of the present application is as follows: before the test, the distance between the mounting frames 2 on both sides is adjusted, and the two ends of the fabric in the length direction are respectively placed on the pressure rollers 31 on both sides and pressed tightly. At this time, the rotation of the rotating shaft 221 drives the pre-clamping plate 51 to move relative to pre-clamp the fabric. At this time, the position of the fabric is fixed, the upper pressure plate 41 and the lower pressure plate 42 clamp the fabric, the two ends of the fabric are released from the pressure roller 31, the two sides of the fabric are clamped, and the test begins. During the test, the force sensor 131 synchronously provides the tension data on both sides, and the camera 61 measures the fabric seam. After the experiment is completed, it is released and the fabric is removed. Before the test, the fabric is easy to align and can be automatically clamped.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fabric seam slippage testing device, comprising a frame (1), a linear drive assembly (11) being provided on the frame (1), a support block (12) being slidably installed at the linear drive assembly (11) on the frame (1), two support blocks (12) being provided and being relatively distributed along the length direction of the frame (1), an electric push rod (13) being provided on opposite sides of the support block (12), a force sensor (131) being provided on the electric push rod (13), a mounting frame (2) being provided at one end of a push rod of the electric push rod (13), a clamping assembly being provided on the mounting frame (2), and the clamping assemblies on the mounting frames (2) on both sides being relatively arranged, characterized in that: The clamping assembly comprises a positioning member (3), a clamping mechanism (4) and a pre-clamping member (5); the positioning member (3) is arranged on the mounting frame (2); the side edge of the fabric is located at the positioning member (3); the clamping mechanism (4) is arranged on the mounting frame (2) and is located on one side of the positioning member (3); the pre-clamping member (5) is arranged on the mounting frame (2) and is located on a side of the clamping mechanism (4) away from the positioning member (3); and a detection mechanism (6) for detecting gaps is arranged on the frame (1); The clamping mechanism (4) includes an upper pressing plate (41) and a lower pressing plate (42), the upper pressing plate (41) and the lower pressing plate (42) are both slidably mounted on the mounting frame (2) and arranged relative to each other, the mounting frame (2) is provided with a first driving member (26) for driving the upper pressing plate (41) and the lower pressing plate (42) to slide relative to each other, the upper pressing plate (41) is provided with a plurality of first pressing blocks (411), the lower pressing plate (42) is provided with a plurality of second pressing blocks (421), and the positions of the first pressing blocks (411) and the second pressing blocks (421) are staggered. The first driving member (26) includes a first motor (261) and a first screw (262), the first screw (262) is rotatably mounted on the mounting frame (2), the first motor (261) is arranged on the mounting frame (2) and the first motor (261) drives the first screw (262) to rotate, the first screw (262) is provided with two opposite thread sections, and the upper pressing plate (41) and the lower pressing plate (42) are respectively threadedly connected to the first screw (262) at the two opposite thread sections; An adjusting member (7) is provided on the upper pressure plate (41), and the adjusting member (7) includes an adjusting screw (71) and a pushing plate (72). A receiving groove is provided in the upper pressure plate (41), and the pushing plate (72) is slidably mounted at the receiving groove of the upper pressure plate (41). The adjusting screw (71) is threadedly mounted on the upper pressure plate (41), and one end of the adjusting screw (71) is located at the receiving groove and is rotatably connected to a side surface of the pushing plate (72). The first clamping block (411) is slidably mounted on the upper pressure plate (41), and the first clamping block (411) is connected to a side surface of the pushing plate (72). The lower pressure plate (42) is provided with an adjusting member (7) identical to that on the upper pressure plate (41). The pre-clamping member (5) includes a pre-clamping plate (51), the pre-clamping plate (51) is slidably mounted on the mounting frame (2), two pre-clamping plates (51) are provided and are parallel to each other, and the mounting frame (2) is provided with a second driving member (22) on both sides of the pre-clamping plate (51) for driving the pre-clamping plate (51) to slide; The second driving member (22) includes a rotating shaft (221) and a rotating rod (222), the rotating shaft (221) is rotatably mounted on the mounting frame (2), the rotating rod (222) is arranged at one end of the rotating shaft (221) and is vertically connected to the rotating shaft (221), a connecting rod (223) is rotatably mounted at one end of the rotating rod (222), one end of the connecting rod (223) is rotatably connected to one side of the pre-clamping plate (51), and a rotating member (23) is provided on the mounting frame (2) for driving the rotating shaft (221) to rotate; The rotating member (23) includes a gear (231) and a rack (232), wherein the gear (231) is arranged on the rotating shaft (221) and is coaxially connected to the rotating shaft (221), and the rack (232) is slidably mounted on the mounting frame (2) and meshes with one side of the gear (231), and a driving cylinder (24) is arranged on the mounting frame (2), and one end of the piston rod of the driving cylinder (24) is connected to one end of the rack (232); A connecting rod (511) is rotatably mounted on one side of the pre-clamping plate (51), and a thread is provided on the connecting rod (511). A slider (512) is slidably mounted on one side of the pre-clamping plate (51), and the slider (512) is threadedly connected to the connecting rod (511). One end of the connecting rod (223) is rotatably connected to the slider (512). A second spring (25) is provided on the mounting frame (2), and one end of the second spring (25) is connected to a side surface of the pre-clamping plate (51).

2. The fabric seam slippage testing device according to claim 1, characterized in that: The positioning member (3) includes a pressure roller (31) and a connecting block (32). Two pressure rollers (31) are provided and are arranged parallel to each other. The side of the cloth is placed between the two pressure rollers (31). A slide rod (21) is slidably installed on the mounting frame (2). The connecting block (32) is arranged at one end of the slide rod (21). Both ends of the pressure roller (31) are rotatably connected to the connecting block (32). A first spring (211) is sleeved on the slide rod (21), and one end of the first spring (211) is connected to the connecting block (32).

3. The fabric seam slippage testing device according to claim 1, characterized in that: The detection mechanism (6) includes a camera (61) and a moving block (62). A bracket (14) is provided on the frame (1). The moving block (62) is slidably mounted on the bracket (14). The camera (61) is provided on the moving block (62). The camera (61) is connected to a computer. A linear drive mechanism (8) for adjusting the position of the moving block (62) is provided on the bracket (14).

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