Tensile testing machine for artificial leather processing and detection process thereof

Abstract

The invention discloses a tensile testing machine for artificial leather processing and a detection process thereof, and belongs to the technical field of artificial leather processing.The tensile testing machine comprises a machine base placed above a workbench, a guide base is fixedly installed at the upper end of the machine base, a sliding way is formed in the guide base, and a motor is fixedly installed on the inner side of the machine base; a threaded rod is fixedly mounted at the output end of the motor; the sliding seat is arranged on the inner side of the sliding way in a sliding mode, a monitor is fixedly installed on the outer side of the sliding seat, and a first clamping assembly is fixedly installed at the detection end of the monitor; the second clamping assembly is fixedly mounted on the upper surface of the machine base; and the two winding pieces are elastically and rotationally mounted on the first clamping assembly and the second clamping assembly correspondingly. According to the tensile testing machine for artificial leather processing and the detection process thereof, the end part of artificial leather can be stably clamped, the detection stroke can be shortened in the detection process, meanwhile, an operator can be prevented from being hurt after the artificial leather is broken, and the use safety is high.

Description

Technical Field

[0001] The invention relates to the technical field of artificial leather processing, in particular to a tensile testing machine for artificial leather processing and a detection process thereof. Background Art

[0002] In the process of artificial leather processing, in order to ensure the quality of leather, it is necessary to go through procedures such as surface quality testing, toughness fatigue testing and tension testing. Tension testing refers to measuring the maximum tension that the leather can withstand through tensile testing equipment.

[0003] Prior art 1 (application number: 201710504667.9, Chinese patent application date 2017-06-28) discloses a leather tension detection device, which solves the technical problems that the existing leather tension detection device may cause the leather to be distorted when fixing the leather, causing the leather to be unevenly stressed during pulling, thereby resulting in inaccurate data on the tensile strength of the leather. The leather tension detection device includes a base and a frame body arranged on the base, characterized in that a tension sensor is arranged on the top of the frame body, one end of the tension sensor is detachably connected to a fixed seat 1, the fixed seat 1 is connected to a movable seat 1 by a hinged manner, and a first clamping mechanism to prevent the leather from loosening is fixed on the movable seat 1; a hydraulic cylinder is arranged at the bottom of the frame body, the piston rod of the hydraulic cylinder is vertically upward, and a fixed seat 2 is arranged at the end of the piston rod, the fixed seat 2 is connected to a movable seat 2 by a hinged manner, and a second clamping mechanism to prevent the leather from loosening is fixed on the movable seat 2;

[0004] Prior art 2 (application number: 201510102453.X, Chinese patent with application date of 2013-08-07) discloses a leather tension detection machine, which belongs to the technical field of leather manufacturing equipment. It solves the problems of the existing leather being fixed and misaligned in stretching direction, uneven force, and lack of accuracy in tension detection data during tension detection. The leather tension detection device includes a frame and a tension sensor, and the frame is provided with a clamping mechanism 1 and a clamping mechanism 2; a slide plate is slidably connected to the frame, and the clamping mechanism 2 is arranged on the slide plate, and the slide plate is connected to a power mechanism; a lateral fine-tuning mechanism is provided between the adjustment plate and the slide plate, and an angle fine-tuning mechanism is provided between one end of the lower clamping rod 2 and the adjustment plate. The leather tension detection machine enables the leather to be evenly stressed during tension detection, and the measurement data is accurate;

[0005] Prior art 3 (application number: 202210260359.7, Chinese patent with application date of 2022-03-16) discloses a detection device that is convenient for detecting leather tension, including a placement seat, the upper surface of which is fixedly connected to a detection seat on both sides, a penetration groove is provided inside the detection seat, a plurality of embedding grooves are provided inside the detection seat, a limiting disk is fixedly connected inside the detection seat, a pressure rod corresponding to the embedding groove is slidably connected to the outer surface of the limiting disk, a manual turntable is rotatably connected inside the detection seat, and a pressure column corresponding to the pressure rod is fixedly connected to the outer surface of the manual turntable. Different arc-shaped abutting columns are clamped in the slots on the surface of the card seat, and the manual turntable is rotated to press the clamping rod in the card seat against the surface of the leather; this device can adjust the fixing range of the leather, and thus can perform tension detection on the leather under different conditions, thereby improving the accuracy of leather tension detection.

[0006] The existing tensile testing machine for artificial leather processing adopts a single traction and stretching method during use, which makes the stretching and traction stroke of the equipment longer and lacks a certain protective structure, which makes it easy to accidentally injure the operator after the leather breaks, and there are certain usage defects. Summary of the invention

[0007] The purpose of the present invention is to provide a tensile testing machine for artificial leather processing and its detection process, so as to solve the problem raised by the above background technology that the tensile testing machine for artificial leather processing on the market currently adopts a single traction and stretching method during use, which makes the stretching and traction stroke of the equipment long and lacks a certain protective structure, which makes it easy to accidentally injure the operator after the leather breaks.

[0008] To achieve the above object, the present invention provides the following technical solution: A tensile testing machine for artificial leather processing, comprising a machine base placed above a workbench, a guide seat fixedly mounted on the upper end of the machine base, a slideway provided on the guide seat, a motor fixedly mounted on the inner side of the machine base, a threaded rod fixedly mounted on the output end of the motor, and the threaded rod arranged on the inner side of the guide seat;

[0009] It also includes: a slide seat, which is slidably arranged on the inner side of the slideway, a monitor is fixedly installed on the outer side of the slide seat, and a first clamping assembly is fixedly installed on the detection end of the monitor;

[0010] A second clamping assembly is fixedly mounted on the upper surface of the machine base;

[0011] Two winding members are elastically rotatably mounted on the first clamping assembly and the second clamping assembly respectively, and a driving assembly is arranged between the shaft of the upper winding member and the guide seat;

[0012] The slide groove is arranged on the side of the guide seat, a slider is slidably arranged inside the guide seat, and a transmission assembly is connected between the slider and the shafts of the two winding members.

[0013] Preferably, the guide seat is perpendicular to the machine base, and the threaded rod passes through the sliding seat and is threadedly connected to the sliding seat, and the sliding seat and the slideway are slidably connected.

[0014] By adopting the above technical solution, the motor drives the threaded rod to rotate, which can control the slide seat to slide inside the guide seat, thereby adjusting the height of the monitor, so that the monitor can detect the tension in real time.

[0015] Preferably, the first clamping assembly includes a first fixed seat fixedly mounted on the detection end of the monitor, and the second clamping assembly includes a second fixed seat fixedly mounted on the upper surface of the machine base, and a worm is rotatably mounted on both the first fixed seat and the second fixed seat, and a worm wheel is connected to the outer side of the worm, and a clamping piece is rotatably mounted on both the first fixed seat and the second fixed seat, and the shaft of the clamping piece and the worm wheel are coaxially fixedly connected.

[0016] By adopting the above technical solution, the worm can be rotated to drive the worm wheel to rotate through meshing action, thereby realizing the rotation adjustment of the clamping piece.

[0017] Preferably, after the clamp rotates, its arcuate portion moves to the outside of the fixed column, and the clamp clamps the end of the artificial leather to the outside of the fixed column, and the arcuate portion of the clamp and the outer wall of the fixed column are rough surfaces.

[0018] By adopting the above technical solution, when the clamping piece rotates, the end of the artificial leather can be folded, and the initial clamping and positioning of the artificial leather can be achieved through cooperation with the fixing column.

[0019] Preferably, after the clamp is rotated, the straight portion thereof cooperates with the fixed clamp to clamp the folded artificial leather, and the rough surface of the folded artificial leather is tightly attached.

[0020] By adopting the above technical solution, the clamping piece clamps the folded artificial leather for a second time, so that the rough surface of the folded artificial leather is tightly attached, thereby utilizing the friction force on the rough surface of the artificial leather to further improve the clamping stability of the artificial leather.

[0021] Preferably, the driving assembly includes a gear fixedly mounted on the outer side of the shaft of the upper winding member and a rack fixedly mounted on the outer side of the guide seat, and the gear and the rack are meshingly connected.

[0022] By adopting the above technical solution, when the first clamping assembly moves downward, the gear and the rack can be driven to engage and connect, so that the winding member located above can rotate elastically.

[0023] Preferably, a limiting groove is provided on the winding member, and the artificial leather passes through the winding member through the limiting groove, and the artificial leather is wound up during the rotation of the winding member.

[0024] By adopting the above technical solution, the first clamping assembly is moved upward, and the winding member can rotate in the opposite direction, so that the artificial leather located in the limiting groove can be automatically wound up. In the process of winding up the artificial leather, the winding member can achieve auxiliary stretching, thereby reducing the moving stroke required for equipment detection.

[0025] Preferably, the distance between the winding member and the adjacent clamping member is equal to the initial distance between the two winding members, and the friction force exerted on the artificial leather during the process of the winding member winding the artificial leather is further increased.

[0026] By adopting the above technical solution, when the winding member rotates, the artificial leather can be bidirectionally wound, so that the rough surface of the artificial leather is more closely wound, thereby further improving the fixing effect of the artificial leather.

[0027] Preferably, a spring is connected between the slider and the slide groove, and the slider slides elastically inside the slide groove, and the transmission assembly includes a sprocket fixedly mounted on the shaft of the winding member and a sprocket rotatably mounted on the outside of the slider, and the winding member and the sprocket on the outside of the slider are connected by a transmission chain.

[0028] By adopting the above technical solution, when the winding piece located at the top moves, the winding piece located at the bottom can be driven to rotate synchronously through the transmission chain, and the slider will slide elastically in the slide groove, thereby ensuring the transmission effect of the transmission chain.

[0029] A testing process of a tensile testing machine for artificial leather processing comprises the following steps:

[0030] S1, control the first clamping assembly to move downward on the guide seat so that the first clamping assembly is close to the second clamping assembly, then pass the upper end of the artificial leather through the limiting groove of the upper winding member, and place the upper end of the artificial leather between the upper fixed column and the clamping member, and drive the clamping member to rotate by rotating the worm to clamp the upper end of the artificial leather, and then use the second clamping assembly to clamp the lower end of the artificial leather in the same way;

[0031] S2, controlling the first clamping assembly to gradually move upward along the guide seat, so that the first clamping assembly and the second clamping assembly can perform a stretching test on the clamped artificial leather;

[0032] S3. When the first clamping assembly moves upward, the gear and the rack will mesh, thereby driving the winding member to rotate, realizing the synchronous winding of the artificial leather and shortening the detection movement stroke. When the artificial leather breaks, the winding member can reduce the movement range of the artificial leather after it breaks, avoiding accidental injury to the staff.

[0033] Compared with the prior art, the invention has the following beneficial effects: the tensile testing machine for artificial leather processing and the detection process thereof can stably clamp the end of the artificial leather, and can shorten the detection stroke during the detection process, and can prevent the artificial leather from breaking and injuring the operator, and has high safety in use. The specific contents are as follows;

[0034] 1. A fixed column, a clamping piece and a fixed clamping plate are provided. By rotating the worm, the worm wheel is driven to rotate, and then the clamping piece is driven to rotate, so as to realize the folding of the end of the artificial leather, and the fixed column and the fixed clamping plate are used to fold and clamp the end of the artificial leather. The folded artificial leather can further improve the positioning stability through the friction of its own rough surface;

[0035] 2. A gear, a rack and a winding piece are provided. As the monitor moves upward, the first clamping assembly can be driven to move upward synchronously. At this time, the gear and rack connected to the upper winding piece are meshed and connected, thereby driving the winding piece to rotate, so that the winding piece can roll and stretch the artificial leather, thereby shortening the detection movement stroke of the equipment. At the same time, the winding piece can further improve the clamping stability of the artificial leather. When the artificial leather breaks, the winding piece can reduce the range of movement of the artificial leather after breaking by rolling, thereby avoiding accidental injury to the staff;

[0036] 3. A slider and a transmission chain are provided. With the movement of the first clamping assembly, the sprocket on the outside of the upper winding member can drive the lower winding member to rotate synchronously, and the slider will slide elastically on the inside of the slide groove, thereby ensuring the effective transmission effect of the transmission chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the side cross-sectional structure of the guide seat of the present invention;

[0039] Figure 3 It is a schematic diagram of the front view structure of the first clamping assembly and the second clamping assembly of the present invention;

[0040] Figure 4 This is a schematic diagram of the installation structure of the clamping member and the winding member of the present invention;

[0041] Figure 5 This is a schematic diagram of the split structure of the clamping member of the present invention;

[0042] Figure 6 This is a schematic diagram of the transmission chain installation structure of the present invention;

[0043] Figure 7 It is a schematic diagram of the top cross-sectional structure of the guide seat of the present invention;

[0044] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0045] In the figure: 1. machine base; 2. guide seat; 3. slideway; 4. threaded rod; 5. slide seat; 6. monitor; 7. first clamping assembly; 8. second clamping assembly; 9. first fixed seat; 10. second fixed seat; 11. fixed column; 12. clamping piece; 13. worm gear; 14. worm; 15. fixed splint; 16. winding piece; 17. limiting groove; 18. gear; 19. rack; 20. slide groove; 21. slider; 2101, spring; 22. sprocket; 23. transmission chain. DETAILED DESCRIPTION

[0046] Example 1: Please refer to Figure 1-Figure 5 As shown, the existing tensile testing machine for artificial leather processing has a single clamping mechanism and adopts a single clamping block structure to clamp the artificial leather, which makes it easy to slip during the tensile test. In order to solve this technical problem, this embodiment discloses the following technical contents;

[0047] A tensile testing machine for artificial leather processing, comprising a machine base 1 placed above a workbench, a guide base 2 fixedly mounted on the upper end of the machine base 1, a slideway 3 provided on the guide base 2, a motor fixedly mounted on the inner side of the machine base 1, a threaded rod 4 fixedly mounted on the output end of the motor, and the threaded rod 4 arranged on the inner side of the guide base 2;

[0048] It also includes: a slide seat 5, which is slidably arranged on the inner side of the slideway 3, a monitor 6 is fixedly installed on the outer side of the slide seat 5, and a first clamping assembly 7 is fixedly installed on the detection end of the monitor 6; a second clamping assembly 8 is fixedly installed on the upper surface of the machine base 1; the guide seat 2 is perpendicular to the machine base 1, and the threaded rod 4 passes through the slide seat 5 and is threadedly connected to the slide seat 5, and the slide seat 5 and the slideway 3 are slidably connected.

[0049] The first clamping assembly 7 includes a first fixed seat 9 fixedly mounted on the detection end of the monitor 6, and the second clamping assembly 8 includes a second fixed seat 10 fixedly mounted on the upper surface of the base 1, and a worm 14 is rotatably mounted on the first fixed seat 9 and the second fixed seat 10, and a worm wheel 13 is connected to the outer side of the worm 14, and a clamping piece 12 is rotatably mounted on the first fixed seat 9 and the second fixed seat 10, and the shaft of the clamping piece 12 and the worm wheel 13 are coaxially fixedly connected.

[0050] After the clamp 12 rotates, its arc-shaped portion moves to the outside of the fixed column 11, and the clamp 12 clamps the end of the artificial leather to the outside of the fixed column 11, and the arc-shaped portion of the clamp 12 and the outer wall of the fixed column 11 are rough surfaces. After the clamp 12 rotates, its straight portion cooperates with the fixed clamp 15 to clamp the folded artificial leather, and the rough surface of the folded artificial leather is tightly attached.

[0051] By adopting the above technical scheme, the upper end of the artificial leather is placed between the fixed column 11 and the clamping piece 12 on the first clamping component 7, and the rough surface of the artificial leather faces the fixed column 11, and then the worm 14 is rotated so that the worm 14 drives the worm wheel 13 to rotate through meshing action, and at this time the worm wheel 13 will drive the clamping piece 12 to rotate, so that the clamping piece 12 folds the artificial leather, and at the same time cooperates with the fixed column 11 and the fixed clamping plate 15 to clamp and fix, and the rough surfaces of the artificial leather in the folded part are pressed against each other, so that the friction force on the rough surface of the artificial leather further improves the clamping stability of the artificial leather, and then the artificial leather is passed through the limiting grooves 17 on the two winding members 16, and the worm 14 on the second clamping component 8 is rotated, and the lower end of the artificial leather is clamped and fixed by the same fixing method as the first clamping component 7, and then the motor is started to drive the threaded rod 4 to rotate, and at this time the threaded rod 4 will drive the slide 5 to move up on the inner side of the slideway 3, and at this time the monitor 6 can drive the first clamping component 7 to move up, so as to achieve the stretching of the artificial leather;

[0052] Embodiment 2: The technical content disclosed in this embodiment is a further improvement on the above embodiment 1. The existing tensile testing machine for artificial leather processing has a single stretching method, which makes the stretching stroke distance long and cannot provide protection after the breakage occurs. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figure 3-Figure 8 As shown;

[0053] Two winding members 16 are elastically rotatably mounted on the first clamping assembly 7 and the second clamping assembly 8, respectively, and a driving assembly is arranged between the shaft of the upper winding member 16 and the guide seat 2; a slide groove 20 is provided on the side of the guide seat 2, a slider 21 is slidably provided on the inner side of the guide seat 2, and a transmission assembly is connected between the slider 21 and the shafts of the two winding members 16. The driving assembly includes a gear 18 fixedly mounted on the outer side of the shaft of the upper winding member 16 and a rack 19 fixedly mounted on the outer side of the guide seat 2, and the gear 18 and the rack 19 are meshed and connected. A limiting groove 17 is provided on the winding member 16, and the artificial leather passes through the winding member 16 through the limiting groove 17, and the winding member 16 is used to roll up the artificial leather during its rotation. The distance between the winding member 16 and the adjacent clamping member 12 is equal to the initial distance between the two winding members 16, and the friction force on the artificial leather is further increased during the winding of the artificial leather by the winding member 16. A spring 2101 is connected between the slider 21 and the slide groove 20, and the slider 21 slides elastically inside the slide groove 20, and the transmission assembly includes a sprocket 22 fixedly installed on the shaft of the winding member 16 and a sprocket 22 rotatably installed on the outside of the slider 21, and the winding member 16 and the sprocket 22 on the outside of the slider 21 are connected by a transmission chain 23.

[0054] By adopting the above technical solution, when the first clamping assembly 7 moves upward, the gear 18 on the shaft of the upper winding member 16 will mesh with the rack 19, thereby driving the winding member 16 to rotate synchronously. The artificial leather can be rolled up during the rotation of the winding member 16, thereby improving the stretching efficiency of the artificial leather and reducing the overall detection stretching movement stroke of the equipment. When the pulling force exceeds the limit of the artificial leather, the artificial leather will break, and the winding of the artificial leather by the winding member 16 will reduce the range of the artificial leather's flying after the breakage, thereby avoiding accidental injuries. As the upper winding member 16 moves, it will drive the slider 21 to slide along the slide groove 20, thereby ensuring that the transmission chain 23 can always maintain the transmission effect, thereby realizing the synchronous rotation adjustment of the two winding members 16.

[0055] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A tensile testing machine for artificial leather processing, comprising a machine base (1) placed above a workbench, a guide seat (2) fixedly mounted on the upper end of the machine base (1), a slideway (3) provided on the guide seat (2), a motor fixedly mounted on the inner side of the machine base (1), a threaded rod (4) fixedly mounted on the output end of the motor, and the threaded rod (4) arranged on the inner side of the guide seat (2); It is characterized in that Also includes: A slide seat (5) is slidably arranged on the inner side of the slideway (3); a monitor (6) is fixedly installed on the outer side of the slide seat (5); and a first clamping assembly (7) is fixedly installed on the detection end of the monitor (6); A second clamping assembly (8) is fixedly mounted on the upper surface of the machine base (1); Two winding members (16) are respectively elastically rotatably mounted on the first clamping assembly (7) and the second clamping assembly (8), and a driving assembly is arranged between the shaft of the upper winding member (16) and the guide seat (2); The slide groove (20) is provided on the side of the guide seat (2), a slider (21) is slidably arranged inside the guide seat (2), and a transmission assembly is connected between the slider (21) and the shafts of the two winding members (16).

2. The tensile testing machine for artificial leather processing according to claim 1, characterized in that: The guide seat (2) is perpendicular to the machine seat (1), and the threaded rod (4) passes through the slide seat (5) and is threadedly connected to the slide seat (5), and the slide seat (5) and the slideway (3) are slidably connected.

3. The tensile testing machine for artificial leather processing according to claim 1, characterized in that: The first clamping assembly (7) comprises a first fixing seat (9) fixedly mounted on the detection end of the monitoring instrument (6), and the second clamping assembly (8) comprises a second fixing seat (10) fixedly mounted on the upper surface of the machine base (1), and a worm (14) is rotatably mounted on both the first fixing seat (9) and the second fixing seat (10), and a worm wheel (13) is connected to the outer side of the worm (14), and a clamping piece (12) is rotatably mounted on both the first fixing seat (9) and the second fixing seat (10), and the shaft of the clamping piece (12) and the worm wheel (13) are coaxially fixedly connected.

4. The tensile testing machine for artificial leather processing according to claim 3, characterized in that: After the clamp (12) rotates, its arc-shaped portion moves to the outside of the fixed column (11), and the clamp (12) clamps the end of the artificial leather to the outside of the fixed column (11), and the arc-shaped portion of the clamp (12) and the outer wall of the fixed column (11) are rough surfaces.

5. The tensile testing machine for artificial leather processing according to claim 4, characterized in that: After the clamp (12) rotates, its straight portion cooperates with the fixed clamp (15) to clamp the folded artificial leather, and the rough surface of the folded artificial leather is tightly attached.

6. The tensile testing machine for artificial leather processing according to claim 1, characterized in that: The driving assembly comprises a gear (18) fixedly mounted on the outer side of the shaft of the upper winding member (16) and a rack (19) fixedly mounted on the outer side of the guide seat (2), and the gear (18) and the rack (19) are meshingly connected.

7. A tensile testing machine for artificial leather processing according to claim 6, characterized in that: The winding member (16) is provided with a limiting groove (17), and the artificial leather passes through the winding member (16) through the limiting groove (17), and the artificial leather is wound during the rotation of the winding member (16).

8. The tensile testing machine for artificial leather processing according to claim 1, characterized in that: The distance between the rolling element (16) and the adjacent clamping element (12) is equal to the initial distance between the two rolling elements (16), and the friction force exerted on the artificial leather is further increased during the process of the rolling element (16) rolling up the artificial leather.

9. The tensile testing machine for artificial leather processing according to claim 1, characterized in that: A spring (2101) is connected between the slider (21) and the slide groove (20), and the slider (21) slides elastically inside the slide groove (20), and the transmission component includes a sprocket (22) fixedly mounted on the shaft of the winding member (16) and a sprocket (22) rotatably mounted on the outside of the slider (21), and the winding member (16) and the sprocket (22) on the outside of the slider (21) are connected by a transmission chain (23).

10. A testing process for implementing the tensile testing machine for artificial leather processing as claimed in claim 9, characterized in that: The following steps are involved: S1, controlling the first clamping assembly (7) to move downward on the guide seat (2) so that the first clamping assembly (7) is close to the second clamping assembly (8), and then the upper end of the artificial leather is passed through the limiting groove (17) of the upper winding member (16), and the upper end of the artificial leather is placed between the upper fixing column (11) and the clamping member (12), and the clamping member (12) is driven to rotate by rotating the worm (14) to clamp the upper end of the artificial leather, and then the lower end of the artificial leather is clamped by using the second clamping assembly (8) in the same way; S2, controlling the first clamping assembly (7) to gradually move upward along the guide seat (2), so that the first clamping assembly (7) and the second clamping assembly (8) can perform a stretching test on the clamped artificial leather; S3. When the first clamping assembly (7) moves upward, the gear (18) and the rack (19) will mesh, thereby driving the winding member (16) to rotate, thereby achieving synchronous winding of the artificial leather and shortening the detection movement stroke. When the artificial leather breaks, the winding member (16) can reduce the movement range of the artificial leather after it breaks, thereby avoiding accidental injury to staff.

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