A device and method for testing the breaking strength of seam parts of clothing

Abstract

The present invention belongs to the technical field of physical testing of clothing, and specifically relates to a device and method for testing the breaking strength of a seam of clothing. A device for testing the breaking strength of a seam of clothing comprises a workbench, a translation block 1, an active bidirectional screw and a driven bidirectional screw, etc. Two rows of translation blocks 1 that translate left and right are slidably connected on the workbench, and the number of translation blocks 1 in each row is four. The upper part of the workbench is rotatably connected with an active bidirectional screw and a driven bidirectional screw. The present invention presses clothing by an upper pressing frame and a lower pressing frame. When the synchronous belt is wound around the synchronous wheel 2, the active bidirectional screw and the driven bidirectional screw rotate synchronously to tighten the clothing. The synchronous belt is separated from the synchronous wheel 2, and the active bidirectional screw continues to rotate. The two moving plates are non-parallel, and the distance between the front parts of the two lower pressing frames increases, thereby performing a pulling test on the clothing. The testing method is more in line with the pulling force that the clothing is subjected to during actual use, and the test results are more accurate.

Description

Technical Field

[0001] The invention belongs to the technical field of clothing physical testing, and in particular relates to a clothing seam breaking strength testing device and a testing method. Background Art

[0002] In the process of making clothes, after the fabric is laid out and cut, it needs to be sewn. In order to ensure the quality of the seams of the clothes, the breaking strength of the seams of the clothes needs to be tested to determine whether the tensile force that the seams of the clothes can withstand meets the requirements.

[0003] A Chinese patent with the publication number CN214503157U discloses a tensile tester for the seams of clothing, comprising a base plate, a first rectangular opening and a second rectangular opening being longitudinally opened in the middle of the base plate, and a support plate being fixedly connected horizontally and forwardly to the base plate in the middle position above the first rectangular opening.

[0004] This patent uses two moving blocks to move towards or oppositely, and the rolling rod then rotates in the opposite direction to generate tension on the fabric for testing. However, the tension at different seam positions of the garment is consistent, while the tension at different seam positions during actual use of the garment may be inconsistent. This patent makes it difficult to perform a pulling test on garments, and the accuracy of the test results needs to be improved. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings in the prior art, the present application provides a clothing seam breaking strength testing device and testing method.

[0006] The technical scheme is as follows: A clothing seam breaking strength test device and test method, including a workbench, and also includes a translation block one, an active bidirectional screw, a driven bidirectional screw, a moving seat, a pull block, a moving plate, a nut, a slider, a lower clamping frame, an upper clamping frame, an adjustment component and a control mechanism arranged on the workbench, the workbench is slidably connected with two rows of translation blocks one that translate left and right, and the number of translation blocks one in each row is four, the upper part of the workbench is rotatably connected with an active bidirectional screw and a driven bidirectional screw, and two moving plates and two between the two moving plates are arranged between the active bidirectional screw and the driven bidirectional screw. A moving seat is provided between the moving plate and the adjacent moving seats, a pair of pulling blocks are connected between the moving plate and the adjacent moving seats, a pair of nuts are threadedly connected on the active bidirectional screw and the driven bidirectional screw, the moving plate and the rear of the moving seat are respectively rotatably connected with a translation block in the rear row, the moving plates are respectively rotatably connected with the two nuts on the driven bidirectional screw, a pair of upper sliding grooves are provided at the front of the moving plate, sliders are slidably connected in the upper sliding grooves, the two nuts on the active bidirectional screw are respectively rotatably connected with the adjacent pair of sliders, the moving seats are connected with lower clamping frames, and an upper clamping frame whose position is adjusted by an adjusting component is provided above the lower clamping frame.

[0007] Preferably, two long holes are opened on the upper part of the movable seat, and the active bidirectional screw and the driven bidirectional screw are movably connected to the movable seat through the long holes.

[0008] Preferably, the active bidirectional screw is driven to rotate by a servo motor, and the control mechanism is used to control whether the driven bidirectional screw rotates synchronously with the active bidirectional screw. When the active bidirectional screw rotates, the two nuts located on it move in opposite directions, and when the driven bidirectional screw rotates, the two nuts located on it move in opposite directions.

[0009] Preferably, a sliding groove is provided on the lower front sides of the movable plate and the movable seat, and the movable plate and the movable seat are movably connected to the four translation blocks in the front row through the sliding groove.

[0010] Preferably, the control mechanism includes a synchronous wheel 1 connected to one end of an active bidirectional screw, a synchronous wheel 2 connected to one end of a driven bidirectional screw, a synchronous belt, a lifting block, a tensioning wheel, a guide plate, an electric slide rail installed on a workbench, and a sliding frame installed on the electric slide rail. The sliding frame is slidably connected to a lifting block reset by a reset spring, and the lifting blocks are rotatably connected to tensioning wheels. A synchronous belt is wound around the synchronous wheel 1 and the two tensioning wheels. A guide plate with two inclined holes is fixedly connected to the workbench, and the lifting blocks extend into adjacent inclined holes. When the lifting blocks move backward, the synchronous belt will be wound around the synchronous wheel 2.

[0011] Preferably, the adjusting assembly includes a worm gear, an adjusting wheel and bolts, two worm gears are rotatably connected inside the upper clamping frame, the middle part of the upper clamping frame is rotatably connected to the adjusting wheel, the adjusting wheel is transmitted to the worm gear through a bevel gear set, the front and rear parts of the lower clamping frame are threadedly connected to a pair of bolts, the upper ends of the bolts extend into the interior of the upper clamping frame, the upper ends of the bolts are rotatably connected to the upper clamping frame, and the upper ends of the bolts are connected to a worm wheel meshing with the worm gear.

[0012] Preferably, it also includes a clamping mechanism arranged on the lower clamping frame, the clamping mechanism includes a slide plate, a clamping block, a transmission block and an extrusion block. The lower clamping frame is slidably connected to a slide plate reset by a return spring, and the top of the slide plate is connected to multiple clamping blocks in an array. The side where the lower clamping frame and the upper clamping frame are close to each other are provided with through holes for the clamping blocks to pass through in an array. The bottom of the lower clamping frame is slidably connected to two transmission blocks that move forward and backward, and the top of the lower clamping frame is slidably connected to two extrusion blocks that move up and down, and the top of the extrusion block is fixedly connected to the bottom of the upper clamping frame. The side where the transmission block and the extrusion block are close to each other is provided with an inclined surface one to extrude the transmission block close to the slide plate when the extrusion block moves downward, and the side where the slide plate and the transmission block are close to each other is provided with an inclined surface two to extrude the slide plate upward when the two transmission blocks are close to the slide plate.

[0013] Preferably, it also includes a lifting mechanism arranged on the workbench, the lifting mechanism includes an adjusting bidirectional screw, a translation block 2, a rotating plate, a push rod, a worm gear 2 and a rocker arranged on the worm gear 2, two adjusting bidirectional screws are rotatably connected to the workbench, two pairs of translation blocks 2 threadedly connected to the adjusting bidirectional screws on the same side are rotatably connected to the workbench, and the two translation blocks 2 located thereon move in opposite directions when the adjusting bidirectional screw rotates, a rotating plate is rotatably connected between the two translation blocks 2 on the left side and between the two translation blocks 2 on the rear side, a push rod is rotatably connected between the tops of the two rotating plates, and a worm gear 2 is rotatably connected to the workbench, and one end of the adjusting bidirectional screw is connected to a worm wheel 2 meshing with the worm gear 2.

[0014] Preferably, a scale plate and a pointer are also included. The workbench is connected to a scale plate engraved with scale lines, and one end of the push rod is connected to a pointer pointing to the scale line.

[0015] A method for testing the breaking strength of a garment seam, comprising the following steps: S1: Pass the two ends of the garment to be tested between the lower pressing frame and the upper pressing frame, turn the adjusting wheel to move the bolt and the upper pressing frame downward, and the upper pressing frame and the lower pressing frame press the two ends of the garment; S2: Control the electric slide rail to drive the sliding frame, lifting block and tension wheel to move backward, the synchronous belt is wound around the synchronous wheel 2, and the servo motor is controlled to drive the active bidirectional screw and the driven bidirectional screw to rotate synchronously, and the two lower tightening frames move away from each other, thereby tightening the clothing; S3: Control the electric slide rail to drive the sliding frame, lifting block and tension wheel to move forward, the synchronous belt is separated from the second synchronous wheel, and the servo motor is controlled to drive the active bidirectional screw to continue to rotate, driving the front parts of the moving plates to continue to move away from each other, the two moving plates are in a non-parallel state, and the distance between the front parts of the two lower pressing frames gradually increases, thereby pulling the front part of the clothing; S4: When the seam of the garment is broken, the servo motor is controlled to stop driving the active bidirectional screw to rotate.

[0016] Beneficial effects of the present invention: 1. The present invention presses the clothing through the upper pressing frame and the lower pressing frame. When the synchronous belt is wound around the synchronous wheel 2, the active bidirectional screw and the driven bidirectional screw rotate synchronously to tighten the clothing, the synchronous belt is separated from the synchronous wheel 2, the active bidirectional screw continues to rotate, the two movable plates are non-parallel, and the distance between the front parts of the two lower pressing frames is increased, thereby performing a pulling test on the clothing. The testing method is more in line with the pulling force that the clothing is actually subjected to during use, and the test result is more accurate.

[0017] 2. The present invention reverses the adjusting wheel, the upper pressing frame and the extrusion block move upward, the pressing block retracts into the lower pressing frame, and after the two ends of the clothing pass through the lower pressing frame and the upper pressing frame, the adjusting wheel is rotated to move the upper pressing frame and the extrusion block downward, the extrusion block squeezes the transmission block, the transmission block squeezes the slide plate, the pressing block moves upward and passes through the through hole, the friction force on the clothing is increased by the pressing block, and the clothing is further prevented from being dislocated during the test.

[0018] 3. The present invention can test the breaking strength of the seam of the garment by reversing the rocker to move the push rod upward. The push rod lifts the seam of the garment, so that the force on the seam of the garment is more concentrated. The cooperation of the worm gear 2 and the worm wheel 2 prevents the translation block 2 from moving during the test, so that the test result is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of this application.

[0020] Figure 2 This application Figure 1 Top view of .

[0021] Figure 3 It is a top view of the active bidirectional screw, the driven bidirectional screw, the moving seat, the pulling block and the moving plate of the present application.

[0022] Figure 4 It is a schematic diagram of the positions of the movable seat, nut and movable plate of the present application.

[0023] Figure 5 It is a cross-sectional view of the movable seat of the present application, showing the connection relationship between the movable seat and the translation block one.

[0024] Figure 6 This application Figure 4 Schematic diagram of the local structure in.

[0025] Figure 7 This application Figure 6 Enlarged view of point A in .

[0026] Figure 8 It is a schematic diagram of the positions of the electric slide rail and the sliding frame of the present application.

[0027] Fig. 9 It is an exploded view of the control mechanism of this application.

[0028] Fig.10 It is a schematic diagram of the internal structure of the lower pressing frame and the upper pressing frame of the present application.

[0029] Fig.11 This application Fig.10 Side view of the .

[0030] Fig.12 This application Fig.11Enlarged view of point B in .

[0031] Fig.13 It is a schematic diagram of the connection relationship between the bidirectional screw, worm gear 2, rocker and scale plate of the present application.

[0032] Fig.14 It is a structural schematic diagram of the lifting mechanism, scale plate and pointer of the present application.

[0033] Description of the accompanying drawings: 1_workbench, 2_translation block 1, 3_active bidirectional screw, 4_driven bidirectional screw, 41_synchronous wheel 1, 42_synchronous wheel 2, 43_synchronous belt, 44_lifting block, 45_tensioning wheel, 46_guide plate, 47_oblique hole, 48_electric slide rail, 49_sliding frame, 5_moving seat, 50_pull block, 51_long hole, 52_lower slide groove, 6_moving plate, 61_upper slide groove, 7_nut , 8_slider, 9_lower clamping frame, 10_upper clamping frame, 101_worm one, 102_adjusting wheel, 103_bolt, 111_slide plate, 112_clamping block, 113_through hole, 114_transmission block, 115_extrusion block, 121_adjusting bidirectional screw, 122_translation block two, 123_turn plate, 124_thrust rod, 125_worm two, 126_rocker, 131_scale plate, 132_pointer. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] Implementation 1: A device for testing the breaking strength of a garment seam, referring to Figure 1-Figure 11, including a workbench 1, a translation block 2, an active bidirectional screw 3, a driven bidirectional screw 4, a moving seat 5, a pull block 50, a moving plate 6, a nut 7, a slider 8, a lower clamping frame 9, an upper clamping frame 10, a control mechanism and an adjustment component. The workbench 1 is slidably connected with two rows of translation blocks 2 that can translate left and right, and the number of translation blocks 2 in each row is four. The upper part of the workbench 1 is rotatably connected with an active bidirectional screw 3 and a driven bidirectional screw 4. A servo motor is bolted to the left part of the workbench 1, and the output shaft of the servo motor is connected to the active bidirectional screw 3. A control mechanism is provided on the workbench 1, and the control mechanism is used to control whether the driven bidirectional screw 4 rotates synchronously with the active bidirectional screw 3. Two moving plates 6 and two moving seats 5 located between the two moving plates 6 are provided between the active bidirectional screw 3 and the driven bidirectional screw 4. Two symmetrically arranged long holes 51 are opened on the upper part of the moving seat 5. The active bidirectional screw 3 and the driven bidirectional screw 4 are movably connected to the moving seat 5 through the long holes 51. The moving plate 6 and the moving seat 5 A sliding groove 52 is provided on the lower side of the front portion of the moving seat 5, and the moving plate 6 and the moving seat 5 are respectively movably connected to the four translation blocks 2 in the front row through the sliding groove 52. A pair of pulling blocks 50 are connected between the moving plate 6 and the adjacent moving seat 5. A pair of nuts 7 are threadedly connected on the active bidirectional screw 3 and the driven bidirectional screw 4. When the active bidirectional screw 3 rotates, the two nuts 7 located thereon move in opposite directions. When the driven bidirectional screw 4 rotates, the two nuts 7 located thereon move in opposite directions. The rear portion of the moving plate 6 and the moving seat 5 are respectively rotatably connected to the translation block 2 in the rear row, and the moving plate 6 is respectively rotatably connected to the two nuts 7 on the driven bidirectional screw 4. A pair of upper sliding grooves 61 are provided on the front portion of the moving plate 6, and sliders 8 are slidably connected in the upper sliding grooves 61. The two nuts 7 on the active bidirectional screw 3 are respectively rotatably connected to the adjacent pair of sliders 8. A lower clamping frame 9 is welded on the top of the moving seat 5, and an upper clamping frame 10 whose position is adjusted by an adjusting component is provided above the lower clamping frame 9.

[0036] refer to Figure 3 , Figure 8 and Fig. 9The control mechanism includes a synchronous wheel 1 41, a synchronous wheel 2 42, a synchronous belt 43, a lifting block 44, a tensioning wheel 45, a guide plate 46, an electric slide rail 48 and a sliding frame 49. The right end of the active bidirectional screw 3 is welded with a synchronous wheel 1 41, the right end of the driven bidirectional screw 4 is welded with a synchronous wheel 2 42, the right part of the workbench 1 is installed with an electric slide rail 48, and the sliding frame 49 is installed on the electric slide rail 48. The electric slide rail 48 drives the sliding frame 49 to move forward and backward, and the lifting block 4 is slidably connected to the sliding frame 49. 4. A return spring is connected between the lifting block 44 and the sliding frame 49. A tensioning wheel 45 is rotatably connected to the lifting block 44. A synchronous belt 43 is wound between the synchronous wheel 1 41 and the two tensioning wheels 45. A guide plate 46 is welded to the right part of the workbench 1. Two symmetrically arranged inclined holes 47 are opened on the guide plate 46. The lifting blocks 44 are extended into adjacent inclined holes 47. The vertical distance between the two inclined holes 47 gradually decreases from front to back. When the lifting block 44 moves backward, the synchronous belt 43 will be wound around the synchronous wheel 2 42.

[0037] refer to Fig.10 and Fig.11 The adjusting assembly includes a worm 101, an adjusting wheel 102 and a bolt 103. Two symmetrically arranged worms 101 are rotatably connected inside the upper clamping frame 10. The middle part of the upper clamping frame 10 is rotatably connected with an adjusting wheel 102. The adjusting wheel 102 is transmitted to the worm 101 through a bevel gear set. A pair of bolts 103 are threadedly connected to the front and rear of the lower clamping frame 9. The upper ends of the bolts 103 extend into the upper clamping frame 10. The upper ends of the bolts 103 are rotatably connected to the upper clamping frame 10. The upper ends of the bolts 103 are connected to a worm wheel 1 meshing with the worm 101.

[0038] First, pass the two ends of the garment to be tested between the lower pressing frame 9 and the upper pressing frame 10, and make the seam position of the garment between the two lower pressing frames 9, then manually turn the adjusting wheel 102, drive the worm 101 to rotate through the bevel gear set, and rotate the bolt 103 under the meshing action of the worm 101 and the worm wheel 1, and the bolt 103 moves downward under the action of the threaded connection, driving the upper pressing frame 10 to move downward, and the distance between the upper pressing frame 10 and the lower pressing frame 9 is reduced, so that the two ends of the garment are pressed by the upper pressing frame 10 and the lower pressing frame 9, and the cooperation of the worm 101 and the worm wheel 1 has a self-locking function, so that the bolt 103 will not reverse and loosen during the test, thereby ensuring the pressing state of the garment, and then control the electric slide rail 48 to drive the sliding frame 49 The two lifting blocks 44 are moved backward, driving the lifting block 44 and the tensioning wheel 45 to move backward. Under the guidance of the inclined hole 47, the two lifting blocks 44 are brought close to each other in the vertical direction. The reset spring is compressed, driving the two tensioning wheels 45 to move close to each other in the vertical direction. The two tensioning wheels 45 move in the direction of the inclined hole 47, so that the synchronous belt 43 is wound around the synchronous wheel 2 42, and the servo motor is controlled to drive the active bidirectional screw 3 and the synchronous wheel 1 41 to rotate. Under the transmission action of the synchronous belt 43, the tensioning wheel 45 and the synchronous wheel 2 42, the driven bidirectional screw 4 is driven to rotate synchronously. The nut 7 is synchronously moved away from the moving seat 5 through the threaded connection, driving the two moving plates 6 to move away from each other. The translation block 1 2 slides synchronously with the moving plate 6 and the moving seat 5 on the workbench 1, and the moving plate 6 is pulled by the pull block 50 Pull the two moving seats 5 away from each other. At this time, the two moving plates 6 are in a parallel state, the two moving seats 5 are in a parallel state, and the two lower clamping frames 9 move away from each other, thereby pulling the two ends of the clothing. When the clothing is tightened, the electric slide rail 48 is controlled to drive the sliding frame 49, the lifting block 44 and the tensioning wheel 45 to move forward and reset. Under the guidance of the inclined hole 47, the two lifting blocks 44 are moved away from each other in the vertical direction. The reset spring is restored, and the two tensioning wheels 45 are moved away, thereby pulling the synchronous belt 43, so that the synchronous belt 43 is separated from the synchronous wheel 2 42, and the servo motor is controlled to drive the active bidirectional screw 3 and the synchronous wheel 1 41 to continue to rotate, which will not drive the synchronous wheel 2 42 and the driven bidirectional screw 4 to rotate. The driven bidirectional screw 4 and the two nuts 7 located thereon and The four translation blocks 2 in the rear row stop moving, causing the rear parts of the moving seat 5 and the moving plate 6 to stop moving, while the two nuts 7 on the active bidirectional screw 3 continue to move in the direction away from the moving seat 5, driving the front parts of the moving plates 6 to continue to move away from each other, and the two moving plates 6 are in a non-parallel state. The moving plate 6 pulls the front parts of the two moving seats 5 away from each other through the pulling block 50. The two moving seats 5 are in a non-parallel state, and the rear parts of the moving seat 5 and the moving plate 6 rotate relative to the translation blocks 2 in the rear row. The translation blocks 2 in the front row continue to slide, and the moving seat 5 and the moving plate 6 can adapt to the relative angle and position with the translation blocks 2 in the front row through the sliding groove 52. The slider 8 slides in the upper sliding groove 61, and the slider 8 rotates relative to the nut 7 on the active bidirectional screw 3.The upper slide 61 enables the movable seat 5 and the movable plate 6 to adapt to the relative angle and position between the nut 7 on the movable bidirectional screw. At this time, the lower pressing frame 9 and the upper pressing frame 10 move together with the movable seat 5, and the distance between the front parts of the two lower pressing frames 9 gradually increases, thereby pulling the front part of the clothing. The greater the distance between the front parts of the two lower pressing frames 9, the greater the pulling force on the clothing. When the seam of the clothing breaks, the servo motor is controlled to stop driving the active bidirectional screw 3 to rotate, thereby testing the breaking strength of the seam of the clothing. The testing method is more in line with the pulling force that the clothing is actually subjected to during use, and the test results are more accurate.

[0039] Implementation 2: Based on Implementation 1, refer to Fig.10 , Fig.11 and Fig.12 , also includes a clamping mechanism, the clamping mechanism includes a slide plate 111, a clamping block 112, a transmission block 114 and an extrusion block 115, the lower clamping frame 9 is slidably connected to the inside of the slide plate 111, a return spring is fixedly connected between the slide plate 111 and the clamping frame 9, a plurality of clamping blocks 112 are connected to the top of the slide plate 111 in an array, and through holes 113 for the clamping blocks 112 to pass through are opened in an array on the side where the lower clamping frame 9 and the upper clamping frame 10 are close to each other, and the bottom of the lower clamping frame 9 is slidably connected to two transmission blocks 114 that move forward and backward, and the top of the lower clamping frame 9 is slidably connected to two extrusion blocks 115 that move up and down, and the top of the extrusion block 115 is fixedly connected to the bottom of the upper clamping frame 10, reference Fig.12 The sides where the transmission block 114 and the extrusion block 115 are close to each other are both provided with a first slope, so that when the extrusion block 115 moves downward, the transmission block 114 is squeezed close to the slide plate 111; the sides where the slide plate 111 and the transmission block 114 are close to each other are both provided with a second slope, so that when the two transmission blocks 114 are close to the slide plate 111, the slide plate 111 is squeezed up.

[0040] Initially, the return spring is in a compressed state, and the adjusting wheel 102 is manually reversed first, and the worm 101 is driven to reverse through the bevel gear set, and the bolt 103 is reversed under the meshing action of the worm 101 and the worm wheel 1, and the bolt 103 moves upward under the action of the threaded connection, driving the upper clamping frame 10 and the extrusion block 115 to move upward, and the extrusion block 115 no longer squeezes the transmission block 114, and the return spring is restored, driving the slide plate 111 and the clamping block 112 to move downward, and the clamping block 112 is retracted into the lower clamping frame 9. At this time, the two ends of the clothing can be smoothly passed through the lower clamping frame 9. Between the tightening frame 9 and the upper pressing frame 10, when the adjusting wheel 102 is rotated to move the upper pressing frame 10 downward, the squeezing block 115 is driven to move downward, and the squeezing block 115 squeezes the two transmission blocks 114 close to each other through the inclined surface 1, and the transmission block 114 squeezes the slide plate 111 upward through the inclined surface 2, driving the pressing block 112 to move upward through the through holes 113 on the lower pressing frame 9 and the upper pressing frame 10, and the return spring is compressed, and the friction force on the clothing can be increased through the pressing block 112, thereby further preventing the clothing from being dislocated during the test and ensuring the smooth progress of the test process.

[0041] Implementation 3: Based on Implementation 2, refer to Figure 1 , Figure 2 , Fig.13 and Fig.14 , also includes a lifting mechanism, which includes an adjusting bidirectional screw 121, a translation block 122, a rotating plate 123, a push rod 124, a worm 125 and a rocker 126. Two symmetrically arranged adjusting bidirectional screws 121 are rotatably connected to the workbench 1, and two pairs of translation blocks 122 are rotatably connected to the workbench 1. Each pair of translation blocks 122 is threadedly connected to the adjusting bidirectional screw 121 on the same side. When the adjusting bidirectional screw 121 rotates, the two translation blocks 122 located thereon move in opposite directions. The rotating plate 123 is rotatably connected between the two translation blocks 122 on the left side and between the two translation blocks 122 on the rear side. A push rod 124 that can move up and down is rotatably connected between the tops of the two rotating plates 123. The right part of the workbench 1 is rotatably connected with a worm 125. The right end of the adjusting bidirectional screw 121 is connected to a worm wheel 2 meshing with the worm 125, and a rocker 126 is provided at the front end of the worm 125.

[0042] First, manually rotate the rocker 126 to drive the worm 125 to rotate, and the meshing of the worm 125 and the worm gear 2 drives the adjusting bidirectional screw 121 to rotate. Under the action of the threaded connection, the two translation blocks 122 on the same adjusting bidirectional screw 121 are moved away from each other, and the translation block 122 pulls the rotating plate 123 to rotate downward, driving the push rod 124 to move downward, and then the clothing is passed through the lower pressing frame 9 and the upper pressing frame 10 for compression, and the clothing seam position is vertically aligned with the push rod 124, and then the rocker 126 is manually reversed, and the push rod 124 can be moved up in the same way, and the push rod 124 lifts the clothing seam position, and then the breaking strength of the clothing seam position can be tested, and the clothing seam position is lifted by the push rod 124, so that the clothing seam position is subjected to more concentrated force, and at the same time, the cooperation of the worm 125 and the worm gear 2 has a self-locking function, which prevents the translation block 122 from moving during the test, so that the test result is more accurate.

[0043] Implementation 4: Based on Implementation 3, refer to Figure 1 , Fig.13 and Fig.14 , also includes a scale plate 131 and a pointer 132. A scale plate 131 with scale lines is welded to the front of the workbench 1, and a pointer 132 pointing to the scale lines is connected to the front end of the push rod 124. When the push rod 124 rises and falls, the pointer 132 is driven to rise and fall. The height position of the pointer 132 can be displayed through the scale lines, thereby reflecting the height position of the push rod 124, which is convenient for controlling the height position of the push rod 124.

[0044] A method for testing the breaking strength of a garment seam, comprising the following steps: S1: Pass the two ends of the garment to be tested through the lower pressing frame 9 and the upper pressing frame 10, rotate the adjusting wheel 102, move the bolt 103 and the upper pressing frame 10 downward, and the upper pressing frame 10 and the lower pressing frame 9 press the two ends of the garment; S2: Control the electric slide rail 48 to drive the slide frame 49, the lifting block 44 and the tension wheel 45 to move backward, the synchronous belt 43 is wound around the synchronous wheel 2 42, and the servo motor is controlled to drive the active bidirectional screw 3 and the driven bidirectional screw 4 to rotate synchronously, and the two lower pressing frames 9 move away from each other, thereby tightening the clothing; S3: Control the electric slide rail 48 to drive the slide frame 49, the lifting block 44 and the tension wheel 45 to move forward, the synchronous belt 43 is separated from the synchronous wheel 2 42, and the servo motor is controlled to drive the active bidirectional screw 3 to continue to rotate, driving the front parts of the moving plates 6 to continue to move away from each other, the two moving plates 6 are in a non-parallel state, and the distance between the front parts of the two lower pressing frames 9 gradually increases, thereby pulling the front part of the clothing; S4: When the seam of the garment is broken, the servo motor is controlled to stop driving the active bidirectional screw 3 to rotate.

[0045] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A clothing seam breaking strength testing device, comprising a workbench (1), characterized in that: The invention also comprises a translation block (2), an active bidirectional screw (3), a driven bidirectional screw (4), a moving seat (5), a pull block (50), a moving plate (6), a nut (7), a slider (8), a lower clamping frame (9), an upper clamping frame (10), an adjustment component and a control mechanism arranged on a workbench (1). The workbench (1) is slidably connected with two rows of translation blocks (2) that can be translated left and right, and the number of translation blocks (2) in each row is four. The upper part of the workbench (1) is rotatably connected with an active bidirectional screw (3) and a driven bidirectional screw (4). Two moving plates (6) and two moving seats (5) located between the two moving plates (6) are arranged between the active bidirectional screw (3) and the driven bidirectional screw (4). The moving plates (6) and the adjacent moving seats (10) are connected to each other. 5), a pair of pull blocks (50) are connected between the active bidirectional screw (3) and the driven bidirectional screw (4), a pair of nuts (7) are threadedly connected, the rear of the movable plate (6) and the movable seat (5) are respectively rotatably connected to the rear translation block 1 (2), the movable plate (6) is respectively rotatably connected to the two nuts (7) on the driven bidirectional screw (4), a pair of upper slide grooves (61) are opened at the front of the movable plate (6), and a slider (8) is slidably connected in the upper slide grooves (61), the two nuts (7) on the active bidirectional screw (3) are respectively rotatably connected to the adjacent pair of sliders (8), the movable seat (5) is connected to a lower clamping frame (9), and an upper clamping frame (10) whose position is adjusted by an adjustment component is provided above the lower clamping frame (9).

2. A clothing seam breaking strength testing device according to claim 1, characterized in that: The upper part of the movable seat (5) is provided with two long holes (51), and the active bidirectional screw (3) and the driven bidirectional screw (4) are movably connected to the movable seat (5) through the long holes (51).

3. A clothing seam breaking strength testing device according to claim 2, characterized in that: The active bidirectional screw (3) is driven to rotate by a servo motor, and the driven bidirectional screw (4) is controlled by a control mechanism to determine whether it rotates synchronously with the active bidirectional screw (3). When the active bidirectional screw (3) rotates, two nuts (7) located thereon move in opposite directions, and when the driven bidirectional screw (4) rotates, two nuts (7) located thereon move in opposite directions.

4. A clothing seam breaking strength testing device according to claim 3, characterized in that: The lower front sides of the movable plate (6) and the movable seat (5) are both provided with a lower sliding groove (52), and the movable plate (6) and the movable seat (5) are movably connected to the four translation blocks (2) in the front row through the lower sliding groove (52).

5. A clothing seam breaking strength testing device according to claim 4, characterized in that: The control mechanism comprises a synchronous wheel 1 (41) connected to one end of the active bidirectional screw (3), a synchronous wheel 2 (42) connected to one end of the driven bidirectional screw (4), a synchronous belt (43), a lifting block (44), a tensioning wheel (45), a guide plate (46), an electric slide rail (48) mounted on the workbench (1), and a sliding frame (49) mounted on the electric slide rail (48), the sliding frame (49) being slidably connected to the lifting block (44) reset by a reset spring, the lifting blocks (44) being rotatably connected to the tensioning wheels (45), a synchronous belt (43) being wound between the synchronous wheel 1 (41) and the two tensioning wheels (45), a guide plate (46) having two inclined holes (47) being fixedly connected to the workbench (1), the lifting blocks (44) being extended into adjacent inclined holes (47), and the synchronous belt (43) being wound around the synchronous wheel 2 (42) when the lifting blocks (44) move backward.

6. A clothing seam breaking strength testing device according to claim 5, characterized in that: The adjustment component comprises a worm gear one (101), an adjustment wheel (102) and a bolt (103); the upper clamping frame (10) is internally rotatably connected to two worm gears one (101); the middle part of the upper clamping frame (10) is rotatably connected to an adjustment wheel (102); the adjustment wheel (102) is transmitted to the worm gear one (101) via a bevel gear set; the front and rear parts of the lower clamping frame (9) are threadedly connected to a pair of bolts (103); the upper ends of the bolts (103) extend into the upper clamping frame (10); the upper ends of the bolts (103) are rotatably connected to the upper clamping frame (10); and the upper ends of the bolts (103) are connected to a worm wheel one meshing with the worm gear one (101).

7. A clothing seam breaking strength testing device according to claim 6, characterized in that: The device also includes a clamping mechanism disposed on a lower clamping frame (9), the clamping mechanism including a slide plate (111), a clamping block (112), a transmission block (114) and an extrusion block (115); the lower clamping frame (9) is slidably connected to the inside thereof with a slide plate (111) reset by a return spring; the top of the slide plate (111) is connected to a plurality of clamping blocks (112) in an array; through holes (113) for the clamping blocks (112) to pass through are provided in an array on one side of the lower clamping frame (9) and the upper clamping frame (10) close to each other; and the bottom of the lower clamping frame (9) is slidably connected to two front-to-rear movable slide plates (114) and a rear-to-rear movable slide plate (115). The transmission block (114) and the top of the lower pressing frame (9) are both slidably connected to two squeezing blocks (115) that move up and down. The top of the squeezing block (115) is fixedly connected to the bottom of the upper pressing frame (10). The sides where the transmission block (114) and the squeezing block (115) are close to each other are both provided with a first inclined surface so that when the squeezing block (115) moves downward, the transmission block (114) is squeezed close to the slide plate (111). The sides where the slide plate (111) and the transmission block (114) are close to each other are both provided with a second inclined surface so that when the two transmission blocks (114) are close to the slide plate (111), the slide plate (111) is squeezed up.

8. A clothing seam breaking strength testing device according to claim 7, characterized in that: The invention also comprises a lifting mechanism disposed on the workbench (1), the lifting mechanism comprising an adjusting bidirectional screw (121), a second translation block (122), a rotating plate (123), a lifting rod (124), a second worm (125) and a rocker (126) disposed on the second worm (125), two adjusting bidirectional screws (121) being rotatably connected to the workbench (1), two pairs of second translation blocks (122) being threadedly connected to the adjusting bidirectional screws (121) on the same side being rotatably connected to the workbench (1), and the adjusting rod (124) being provided with a lifting mechanism. When the bidirectional screw (121) rotates, the two translation blocks (122) located thereon move in opposite directions. A rotating plate (123) is rotatably connected between the two translation blocks (122) on the left side and between the two translation blocks (122) on the rear side. A top rod (124) is rotatably connected between the tops of the two rotation plates (123). A worm (125) is rotatably connected to the workbench (1). One end of the adjusting bidirectional screw (121) is connected to a worm wheel (126) meshing with the worm (125).

9. A clothing seam breaking strength testing device according to claim 8, characterized in that: It also includes a scale plate (131) and a pointer (132). The scale plate (131) with scale lines is connected to the workbench (1), and one end of the push rod (124) is connected to the pointer (132) pointing to the scale line.

10. A method for testing the breaking strength of a garment seam, according to a device for testing the breaking strength of a garment seam according to any one of claims 1 to 9, characterized in that: The specific steps include: S1: Pass the two ends of the garment to be tested between the lower pressing frame (9) and the upper pressing frame (10), rotate the adjusting wheel (102), move the bolt (103) and the upper pressing frame (10) downward, and the upper pressing frame (10) and the lower pressing frame (9) press the two ends of the garment together; S2: Controlling the electric slide rail (48) to drive the slide frame (49), the lifting block (44) and the tension wheel (45) to move backward, the synchronous belt (43) is wound around the synchronous wheel 2 (42), and the servo motor is controlled to drive the active bidirectional screw (3) and the driven bidirectional screw (4) to rotate synchronously, and the two lower tightening frames (9) move away from each other, thereby tightening the garment; S3: Controlling the electric slide rail (48) to drive the slide frame (49), the lifting block (44) and the tension wheel (45) to move forward, the synchronous belt (43) is separated from the synchronous wheel 2 (42), and the servo motor is controlled to drive the active bidirectional screw (3) to continue to rotate, driving the front parts of the movable plates (6) to continue to move away from each other, the two movable plates (6) are in a non-parallel state, and the distance between the front parts of the two lower pressing frames (9) gradually increases, thereby pulling the front part of the clothing; S4: When the seam of the garment is broken, the servo motor is controlled to stop driving the active bidirectional screw (3) to rotate.

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