Stretching mechanism for artificial leather detection

Abstract

The utility model discloses a stretching mechanism for artificial leather detection, which comprises a detection table, two ends of the detection table are provided with traction assemblies, each traction assembly comprises a moving frame movably arranged at two ends of the top of the detection table, the upper end of the detection table is provided with a groove, the inner side of the groove is rotatably provided with a bidirectional screw rod, and the bidirectional screw rod is provided with a guide rail. The two ends of the bidirectional lead screw are symmetrically connected with moving blocks in a threaded mode, the bottom of the moving frame is fixedly connected with the bottoms of the moving blocks, and one end of the detection table is provided with a driving source used for driving the bidirectional lead screw to rotate. A clamping assembly is movably arranged at the upper end of the movable frame and comprises a positioning frame movably arranged at the upper end of the movable frame. According to the stretching mechanism for artificial leather detection, the traction assembly and the clamping assembly are matched with the guide rod, the inclined guide groove and the flat guide groove, the two ends of artificial leather can be automatically clamped during traction, independent operation is not needed, the structure is simple and compact, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of artificial leather testing, and in particular to a stretching mechanism for artificial leather testing. Background Technology

[0002] As a key material in footwear, bags, and automotive interiors, the tensile strength of synthetic leather directly determines the durability and safety of the products. Tensile strength testing can assess a material's ultimate load-bearing capacity, elastic recovery performance, and internal structural stability under stress. This allows for the optimization of production processes and the prevention of cracking or deformation caused by insufficient strength, which is crucial for ensuring product quality and user safety.

[0003] Existing tensile strength testing devices typically employ a split-type operation design: first, the artificial leather sample must be fixed at both ends manually or pneumatically, then an independently driven traction mechanism is activated to apply tension, and finally, data is read by sensors. This separate control of clamping and pulling actions results in a cumbersome clamping and testing process, and multiple operations can easily introduce human error. In addition, the step-by-step execution can easily cause stress relaxation of the sample during the transition between clamping and stretching, affecting the testing accuracy and reducing testing efficiency, making it difficult to meet the rapid quality inspection requirements in mass production scenarios.

[0004] Therefore, it is necessary to propose a stretching mechanism for testing artificial leather to solve the above problems. Utility Model Content

[0005] The main purpose of this invention is to provide a stretching mechanism for testing artificial leather, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A tensile mechanism for testing artificial leather includes a testing platform. Tensioning assemblies are provided at both ends of the testing platform. Each tensioning assembly includes a movable frame movably disposed at both ends of the top of the testing platform. A groove is provided at the upper end of the testing platform. A bidirectional lead screw is rotatably disposed inside the groove. Moving blocks are symmetrically threaded to both ends of the bidirectional lead screw. The bottom of the movable frame is fixedly connected to the bottom of the moving blocks. A drive source for driving the bidirectional lead screw to rotate is provided at one end of the testing platform.

[0008] A clamping assembly is movably provided at the upper end of the movable frame. The clamping assembly includes a positioning frame movably provided at the upper end of the movable frame, and a pressure plate is vertically movably connected to the upper end of the positioning frame.

[0009] The end of the pressure plate is provided with a guide rod, and the side of the end of the detection table is provided with an auxiliary side plate corresponding to the pressure plate. One side wall of the auxiliary side plate is provided with an inclined guide groove, and one side wall of the auxiliary side plate is provided with a horizontal guide groove communicating with the inclined guide groove. The guide rod is used to move and guide the inclined guide groove and the horizontal guide groove.

[0010] One end of the movable frame is equipped with a tension sensor corresponding to the positioning frame, and one end of the tension sensor is connected to the side wall of the positioning frame.

[0011] Preferably, both ends of the testing platform are provided with first linear guide rails, and the movable frame is movably connected to the first linear guide rails;

[0012] The upper end of the movable frame is provided with a second linear guide rail, and the positioning frame is movably connected to the second linear guide rail.

[0013] Preferably, a first guide post is vertically arranged at one end of the top of the positioning frame, and a through hole adapted to the first guide post is provided at one end of the pressure plate. The pressure plate is movably sleeved on the outside of the first guide post through the through hole.

[0014] Preferably, the bottom of the pressure plate and the upper end of the positioning frame are provided with protrusions, and there are recesses that match the protrusions between adjacent protrusions. The protrusions at the bottom of the pressure plate correspond to the recesses at the upper end of the positioning frame, and the recesses at the bottom of the pressure plate correspond to the protrusions at the upper end of the positioning frame.

[0015] Preferably, the protrusion is an arc-shaped protrusion.

[0016] Preferably, a floating plate is provided at the bottom of the pressure plate, and the protrusions and depressions at the bottom of the pressure plate are provided at the bottom of the floating plate. A second guide post is vertically provided at the top of the floating plate, and the upper end of the second guide post passes through the pressure plate and is connected to the pressure plate for movement. A limit cap is provided at the top of the second guide post, and a spring is sleeved on the part of the second guide post located between the pressure plate and the floating plate.

[0017] Preferably, the top of the testing station is provided with a support platform whose top is flush with the upper end of the positioning frame.

[0018] Compared with the prior art, this utility model provides a stretching mechanism for detecting artificial leather, which has the following advantages:

[0019] 1. The stretching mechanism for testing artificial leather, through the setting of the stretching component, clamping component, guide rod, inclined guide groove and flat guide groove, can automatically clamp the two ends of the artificial leather during stretching, without the need for separate operation. The structure is simple and compact, which improves the testing efficiency.

[0020] 2. The tensioning mechanism for detecting artificial leather has concave and convex features that increase the stability of the artificial leather under clamping conditions and prevent it from coming off. The second guide post and spring can adapt to artificial leather of different thicknesses, increasing its adaptability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a structural diagram of the mobile frame and testing platform of this utility model in their disassembled state;

[0023] Figure 3 This is a structural diagram of the positioning frame and the moving frame of this utility model in their disassembled state;

[0024] Figure 4 This is a side view of the pressure plate of this utility model.

[0025] Figure 5 This is a schematic diagram of the auxiliary side plate of this utility model.

[0026] In the diagram: 1. Testing platform; 2. Drive source; 3. Auxiliary side plate; 4. Support platform; 5. Moving frame; 6. Positioning frame; 7. Pressure plate; 8. Groove; 9. Bidirectional lead screw; 10. Moving block; 11. Tension sensor; 12. First linear guide rail; 13. Guide rod; 14. First guide post; 15. Through hole; 16. Second linear guide rail; 17. Floating plate; 18. Protrusion; 19. Recess; 20. Second guide post; 21. Spring; 22. Limiting cap; 23. Inclined guide groove; 24. Flat guide groove. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figure 1-5 As shown, a tensile mechanism for testing artificial leather includes a testing platform 1. Tensioning components are provided at both ends of the testing platform 1. Each tensioning component includes a movable frame 5 movably disposed at both ends of the top of the testing platform 1. Specifically, a first linear guide rail 12 is provided at both ends of the testing platform 1. The movable frame 5 is movably connected to the first linear guide rail 12. A groove 8 is provided at the upper end of the testing platform 1. A bidirectional lead screw 9 is rotatably disposed inside the groove 8. Movable blocks 10 are symmetrically threaded to both ends of the bidirectional lead screw 9. The bottom of the movable frame 5 is fixedly connected to the bottom of the movable block 10. A drive source 2 for driving the bidirectional lead screw 9 to rotate is provided at one end of the testing platform 1.

[0029] Furthermore, a clamping assembly is movably provided at the upper end of the movable frame 5. The clamping assembly includes a positioning frame 6 movably provided at the upper end of the movable frame 5. Specifically, a second linear guide rail 16 is provided at the upper end of the movable frame 5. The positioning frame 6 is movably connected to the second linear guide rail 16. A pressure plate 7 is vertically movably connected at the upper end of the positioning frame 6. Specifically, a first guide post 14 is vertically provided at one end of the top of the positioning frame 6. A through hole 15 adapted to the first guide post 14 is provided at one end of the pressure plate 7. The pressure plate 7 is movably sleeved on the outside of the first guide post 14 through the through hole 15. A guide rod 13 is provided at the end of the pressure plate 7. An auxiliary side plate 3 corresponding to the pressure plate 7 is provided on the side wall of one end of the auxiliary side plate 3. An inclined guide groove 23 is provided on one side wall of the auxiliary side plate 3. A flat guide groove 24 communicating with the inclined guide groove 23 is provided on one side wall of the auxiliary side plate 3. The guide rod 13 is used to movably guide and cooperate with the inclined guide groove 23 and the flat guide groove 24.

[0030] Furthermore, a tension sensor 11 corresponding to the positioning frame 6 is provided at one end of the movable frame 5, and one end of the tension sensor 11 is connected to the side wall of the positioning frame 6.

[0031] To support the artificial leather, the top of the testing table 1 is equipped with a support platform 4 whose top is flush with the upper end of the positioning frame 6.

[0032] To increase clamping stability, protrusions 18 are provided at the bottom of the pressure plate 7 and the top of the positioning frame 6. Recesses 19 that are adapted to the protrusions 18 are provided between adjacent protrusions 18. The protrusions 18 at the bottom of the pressure plate 7 correspond to the recesses 19 at the top of the positioning frame 6, and the recesses 19 at the bottom of the pressure plate 7 correspond to the protrusions 18 at the top of the positioning frame 6. Both the protrusions 18 and the recesses 19 are arc-shaped, which can avoid damage or breakage of the artificial leather and affect the detection.

[0033] To accommodate artificial leather of different thicknesses, a floating plate 17 is provided at the bottom of the pressure plate 7. The protrusions 18 and recesses 19 at the bottom of the pressure plate 7 are both provided at the bottom of the floating plate 17. A second guide post 20 is vertically provided at the top of the floating plate 17, and the upper end of the second guide post 20 passes through the pressure plate 7 and is connected to the pressure plate 7 for movement. A limit cap 22 is provided at the top of the second guide post 20, and a spring 21 is sleeved on the part of the second guide post 20 located between the pressure plate 7 and the floating plate 17.

[0034] In use, artificial leather is laid on top of the support platform 4, with both ends extending between the pressure plate 7 and the positioning frame 6. Then, the drive source 2 is controlled to drive the bidirectional lead screw 9 to rotate. The bidirectional lead screw 9 drives the two moving blocks 10 to move away from each other, and the moving blocks 10 drive the two moving frames 5 to move away from each other. Initially, the guide rod 13 is located at the upper end of the inclined guide groove 23. Therefore, as the moving frame 5 drives the positioning frame 6 to move, under the guidance of the inclined guide groove 23, the guide rod 13 drives the pressure plate 7 to move downward. The first guide post 14 provides guidance. With the displacement, the pressure plate... 7. The artificial leather is clamped at both ends by the cooperation of the protrusion 18 and the recess 19 at the bottom. The protrusion 18 and the recess 19 can increase the contact area with the artificial leather and increase the firmness. Then, the floating plate 17 drives the second guide post 20 to move, and the spring 21 is compressed to adapt to artificial leather of different thicknesses. When the guide rod 13 reaches the lower end of the inclined guide groove 23, the artificial leather is clamped. Then the positioning frame 6 begins to stretch the artificial leather. During this stage, the guide rod 13 can move in the flat guide groove 24. The tensile strength is detected by the tension sensor 11.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tensile mechanism for artificial leather detection, comprising a detection table (1), characterized in that: The testing platform (1) is provided with a traction assembly at both ends. The traction assembly includes a movable frame (5) movably disposed at both ends of the top of the testing platform (1). The upper end of the testing platform (1) is provided with a groove (8). A bidirectional lead screw (9) is rotatably disposed inside the groove (8). The two ends of the bidirectional lead screw (9) are symmetrically threaded with a moving block (10). The bottom of the movable frame (5) is fixedly connected to the bottom of the moving block (10). One end of the testing platform (1) is provided with a drive source (2) for driving the bidirectional lead screw (9) to rotate. The upper end of the movable frame (5) is movably provided with a clamping assembly, the clamping assembly including a positioning frame (6) movably provided on the upper end of the movable frame (5), and a pressure plate (7) is vertically movably connected to the upper end of the positioning frame (6). The end of the pressure plate (7) is provided with a guide rod (13), and the side of the end of the detection table (1) is provided with an auxiliary side plate (3) corresponding to the pressure plate (7). One side wall of the auxiliary side plate (3) is provided with an inclined guide groove (23), and one side wall of the auxiliary side plate (3) is provided with a horizontal guide groove (24) communicating with the inclined guide groove (23). The guide rod (13) is used to move and guide the inclined guide groove (23) and the horizontal guide groove (24). One end of the movable frame (5) is provided with a tension sensor (11) corresponding to the positioning frame (6), and one end of the tension sensor (11) is connected to the side wall of the positioning frame (6).

2. The tensile mechanism for artificial leather detection according to claim 1, characterized in that: Both ends of the testing platform (1) are provided with first linear guide rails (12), and the movable frame (5) is movably connected to the first linear guide rails (12); The upper end of the movable frame (5) is provided with a second linear guide rail (16), and the positioning frame (6) is movably connected to the second linear guide rail (16).

3. The tensile mechanism for artificial leather detection according to claim 1, characterized in that: The positioning frame (6) has a first guide post (14) vertically installed at one end of its top, and the pressure plate (7) has a through hole (15) adapted to the first guide post (14) at one end. The pressure plate (7) is movably sleeved on the outside of the first guide post (14) through the through hole (15).

4. The tensile mechanism for artificial leather detection according to claim 1, characterized in that: The bottom of the pressure plate (7) and the top of the positioning frame (6) are provided with protrusions (18), and there are recesses (19) between adjacent protrusions (18) that are adapted to the protrusions (18). The protrusions (18) at the bottom of the pressure plate (7) correspond to the recesses (19) at the top of the positioning frame (6), and the recesses (19) at the bottom of the pressure plate (7) correspond to the protrusions (18) at the top of the positioning frame (6).

5. The tensile mechanism for artificial leather detection according to claim 4, characterized in that: The protrusion (18) is an arc-shaped protrusion.

6. The tensile mechanism for artificial leather detection according to claim 4, characterized in that: The bottom of the pressure plate (7) is provided with a floating plate (17). The protrusion (18) and the recess (19) at the bottom of the pressure plate (7) are both provided at the bottom of the floating plate (17). The top of the floating plate (17) is provided with a second guide post (20), and the upper end of the second guide post (20) passes through the pressure plate (7) and is movably guided to the pressure plate (7). The top of the second guide post (20) is provided with a limit cap (22). A spring (21) is sleeved on the part of the second guide post (20) located between the pressure plate (7) and the floating plate (17).

7. The tensile mechanism for artificial leather detection according to claim 1, characterized in that: The top of the testing station (1) is provided with a support platform (4) whose top is flush with the upper end of the positioning frame (6).

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