Shoe material tensile strength testing device

Abstract

The invention discloses a device for testing the tensile strength of a shoe material, and belongs to the technical field of shoe testing. A device for testing the tensile strength of a shoe material is used for testing the tensile strength of a to-be-tested material and comprises a working table, a clamping assembly and a lifting assembly, the clamping assembly and the lifting assembly are arranged on the two sides of the working table respectively and located at the same horizontal height, the clamping assembly is fixedly arranged, and the lifting assembly can slide in the horizontal direction relative to the clamping assembly; the clamping assembly comprises a pair of clamping pliers and a clamping module, one end of a to-be-tested material is placed in the clamping module, and the clamping module can clamp and fix the to-be-tested material; the lifting assembly comprises a lifting clamp, a pressing assembly and a necking assembly; the pressing assembly and the necking assembly are arranged in the lifting clamp, and the pressing assembly is arranged in front of the necking assembly; the clamping strength of the device can be improved under the condition that the flexibility and the adjusting range of the device are guaranteed, meanwhile, operation is simplified, time needed by testing is shortened, and the testing efficiency of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of footwear testing, and more specifically, relates to a device for testing the tensile strength of shoe materials. Background Art

[0002] Tensile tests can measure a series of strength and plasticity indicators of materials. Strength usually refers to the ability of a material to resist elastic deformation, plastic deformation and fracture under external force. During the entire use of footwear, the sole will inevitably bend continuously to form cracks or fractures, so the sole must be tested for strength during the footwear production process.

[0003] Patent document No. CN202121139888.9 discloses a sole tensile strength testing device for footwear production (application date May 26, 2021). A test movable seat matching the functional base is provided at the top of the functional base, and a test frame matching the functional base is provided at the top of the test movable seat. A fixed seat is provided on one side of the top of the test frame, and a fixed plate is symmetrically provided on the side of the fixed seat away from the test frame. A regulating groove is provided in the middle position inside the fixed plate, and a number of evenly distributed regulating plates are provided inside the regulating groove. Limit rods are symmetrically interspersed inside the regulating plate, and an auxiliary frame is provided at the top of the regulating plate. Control grooves are symmetrically provided inside the auxiliary frame, and auxiliary rods matching the auxiliary frame are interspersed inside the auxiliary frame. The flexibility of the structure can be ensured, and there are more adjustment space and regulation range between the structures. However, it has defects such as cumbersome operation and low clamping strength, which leads to a long time for device testing and low detection efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a shoe material tensile strength testing device, which can improve the clamping strength of the device while ensuring the flexibility and adjustment range of the device, while simplifying the operation and reducing the time required for testing, thereby improving the efficiency of the device testing.

[0005] The invention discloses a shoe material tensile strength testing device, which is used for testing the tensile strength of a material to be tested, and comprises a work surface, a clamping assembly and a pulling assembly.

[0006] The clamping assembly and the lifting assembly are respectively arranged on both sides of the work surface and are at the same horizontal height. The clamping assembly is fixedly arranged, and the lifting assembly can slide in the horizontal direction relative to the clamping assembly.

[0007] The clamping assembly includes a clamping pliers and a clamping module. One end of the material to be tested is placed in the clamping module, and the clamping module can clamp and fix the material to be tested.

[0008] The lifting assembly includes a lifting clamp, a pressing assembly and a shrinking assembly. The pressing assembly and the shrinking assembly are arranged in the lifting clamp, and the pressing assembly is arranged in front of the shrinking assembly. The pressing assembly includes a pressing roller group symmetrically arranged up and down, each pressing roller group includes a plurality of pressing rollers that can rotate independently, and the material to be tested passes through the gaps between the pressing roller groups. The shrinking assembly includes a plurality of tightening rods, which are arranged at equal intervals in the circumferential direction, one end of the tightening rod is slidably connected to the side wall of the lifting clamp, and the tightening rod can move radially to clamp and lift the other end of the material to be tested.

[0009] As a further improvement of the present invention, the outer side surface of the clamping pliers is fixedly connected to one end of the clamping rod, and the other end of the clamping rod is fixedly connected to the work surface. The clamping module includes a push rod, a push plate and a mounting plate, and the push plate and the mounting plate are respectively arranged at the opening of the clamping pliers facing each other. One side of the push plate is fixedly connected to one end of the push rod, and the other end of the push rod is connected to the output end of the push motor to drive the push plate to move toward the mounting plate. A plurality of needles are evenly arranged on the other side of the push plate. The mounting plate is fixedly connected to the clamping pliers, and a plurality of puncture holes are evenly opened on the mounting plate, and the puncture holes correspond to the puncture needles one by one. The material to be tested is located between the push plate and the mounting plate, and the puncture needles pierce the inside of the material to be tested.

[0010] As a further improvement of the present invention, the pressing assembly further includes a support frame. The support frames are respectively arranged on both sides of the pressing roller. The two ends of the pressing roller are respectively fixedly connected with a driving shaft, and a rotating hole matching the size of the driving shaft is opened on the support frame. The driving shaft is embedded in the rotating hole, and the driving shaft is connected to the output end of the rotating motor to drive the pressing roller to rotate around the axis where the rotating hole is located. The pressing assembly is used to convey and compress the material to be tested.

[0011] As a further improvement of the present invention, a cavity is provided in the lifting pliers. A straight slot-shaped movable groove is provided on the side of the cavity facing the pressing assembly, and the movable groove faces the center of the circle. A tightening rod is arranged in the movable groove, and one end of the tightening rod is connected to the output end of the external translation motor so that the tightening rod moves radially along the movable groove. The necking assembly includes an initial state and a necking state. When the necking assembly is in the initial state, the tightening rod is located on the side of the movable groove away from the center of the circle. When the necking assembly is in the necking state, the tightening rod is located on the side of the movable groove close to the center of the circle.

[0012] As a further improvement of the present invention, the tightening rod includes a shaft and a tightening part. The shaft is located in the moving groove, and the tightening part extends horizontally outward. A plurality of clamping grooves are provided on the tightening part, and the clamping grooves cooperate with the outer peripheral surface of the tightening part to form a notch, and the plurality of clamping grooves on the same tightening part are arranged at intervals. One side provided with the clamping groove faces the center of the circle, so as to clamp the material to be tested.

[0013] As a further improvement of the present invention, the lifting assembly includes a hydraulic cylinder, a telescopic rod and a lifting plate. One side of the lifting plate is connected to the lifting pliers, and the other side of the lifting plate is connected to the output end of the telescopic rod. The hydraulic cylinder is connected to one end of the telescopic rod to drive the lifting pliers to move relative to each other.

[0014] As a further improvement of the present invention, the lifting assembly further includes a rotating disk. The rotating disk is disposed between the lifting disk and the lifting pliers, and the lifting disk is connected to the lifting pliers through the rotating disk. The rotating disk is connected to the output end of the external rotating motor to drive the lifting pliers to rotate around the axis of the telescopic rod.

[0015] As a further improvement of the present invention, a tension sensor is provided on the telescopic rod, and the tension sensor is connected to the external control system.

[0016] As a further improvement of the present invention, the work surface comprises a bottom plate, a clamping plate and a lifting plate. The clamping plate and the lifting plate are respectively fixedly arranged on both sides of the bottom plate. The clamping assembly is arranged on the clamping plate, and the lifting assembly is arranged on the lifting plate.

[0017] As a further improvement of the present invention, a reinforcement assembly is also included, and a plurality of reinforcement assemblies are respectively arranged between adjacent tightening rods, and the reinforcement assembly includes a first reinforcement bar and a second reinforcement bar, which are respectively fixedly connected to different tightening rods. The first reinforcement bar and the second reinforcement bar are slidably connected to each other so that the reinforcement assembly can move with the tightening rod. When the tightening rod moves outward, the first reinforcement bar and the second reinforcement bar move away from each other. When the tightening rod moves inward, the first reinforcement bar and the second reinforcement bar move closer to each other.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a work surface, a clamping assembly and a lifting assembly, the clamping assembly and the lifting assembly are respectively arranged on both sides of the work surface and are at the same horizontal height. The clamping assembly is fixedly arranged to clamp the material to be tested, and the lifting assembly is slidably arranged to lift the other end of the material to be tested. It can be achieved that the clamping strength of the device is improved while ensuring the flexibility and adjustment range of the device, while simplifying the operation and reducing the time required for testing, thereby improving the efficiency of device testing.

[0019] 2. By setting up a rotating disk, the lifting component can twist the material while lifting the material to be tested, so as to simulate the actual scenario of the shoe material under different conditions. It can realize a wider range of material testing, obtain tensile strength data and feedback in more situations, and facilitate more in-depth research. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic structural diagram of the clamping assembly of the present invention; Figure 3 It is another structural schematic diagram of the clamping assembly of the present invention; Figure 4 It is a schematic diagram of the structure of the lifting assembly of the present invention; Figure 5 It is a structural schematic diagram of the pressing assembly of the present invention; Figure 6 It is a working schematic diagram of the necking component of the present invention in an initial state; Figure 7 It is a working schematic diagram of the necking component of the present invention in the necking state; Figure 8 It is a structural schematic diagram of the tightening rod of the present invention; Fig. 9 It is a schematic structural diagram of the reinforcement component of the present invention.

[0021] Description of the numbers in the figure: Work surface 1, base plate 11, clamping plate 12, lifting plate 13, clamping assembly 2, clamping pliers 21, clamping rod 22, push rod 23, push plate 24, needle 25, mounting plate 26, needle hole 27, lifting assembly 3, hydraulic cylinder 31, telescopic rod 32, lifting disk 33, rotating disk 34, lifting pliers 35, inner cavity 36, pressing assembly 4, pressing roller 41, driving shaft 42, supporting frame 43, shrinking assembly 5, tightening rod 51, movable groove 52, shaft 53, clamping groove 54, reinforcement assembly 6, first reinforcement strip 61, second reinforcement strip 62. DETAILED DESCRIPTION

[0022] Specific embodiment 1: Please refer to Figure 1-Figure 8 A shoe material tensile strength testing device comprises a work surface 1, a clamping component 2 and a pulling component 3.

[0023] The clamping assembly 2 and the lifting assembly 3 are respectively arranged on both sides of the work surface 1 and are at the same horizontal height. The clamping assembly 2 is fixedly arranged, and the lifting assembly 3 can slide in the horizontal direction relative to the clamping assembly 2. The work surface 1 includes a bottom plate 11, a clamping plate 12 and a lifting plate 13. The clamping plate 12 and the lifting plate 13 are respectively fixedly arranged on both sides of the bottom plate 11. The clamping assembly 2 is arranged on the clamping plate 12, and the lifting assembly 3 is arranged on the lifting plate 13.

[0024] The clamping assembly 2 includes a clamping forceps 21 and a clamping module. One end of the material to be tested is placed in the clamping module, and the clamping module can clamp and fix the material to be tested.

[0025] The outer side surface of the clamping pliers 21 is fixedly connected to one end of the clamping rod 22, and the other end of the clamping rod 22 is fixedly connected to the clamping plate 12 of the work surface 1, so that the clamping assembly 2 remains motionless during the clamping process. The clamping module includes a push rod 23, a push plate 24 and a mounting plate 26, and the push plate 24 and the mounting plate 26 are respectively arranged at the opening of the clamping pliers 21 facing each other. One side surface of the push plate 24 is fixedly connected to one end of the push rod 23, and the other end of the push rod 23 is connected to the output end of the push motor to drive the push plate 24 to move toward the mounting plate 26. A plurality of punctures 25 are evenly arranged on the other side surface of the push plate 24. The mounting plate 26 is fixedly connected to the clamping pliers 21, and a plurality of puncture holes 27 are evenly opened on the mounting plate 26, and the puncture holes 27 correspond to the puncture needles 25 one by one. The material to be tested is located between the push plate 24 and the mounting plate 26, and the puncture needles 25 pierce the inside of the material to be tested.

[0026] In this embodiment, when testing, one end of the material to be tested is first inserted into the clamp 21, the push plate 24 is driven close to the mounting plate 26, and the puncture needle 25 pierces the material to be tested, and the puncture needle 25 that has passed through the material can be accommodated in the puncture hole 27. Compared with directly squeezing the material with the push plate, by puncturing the inside of the material, the clamping can be made to rely not only on friction, and the strength of the clamping can be improved, so that the material will not fall off during the tensile test.

[0027] The lifting assembly 3 comprises a lifting clamp 35 , a pressing assembly 4 and a necking assembly 5 . The pressing assembly 4 and the necking assembly 5 are arranged in the lifting clamp 35 , and the pressing assembly 4 is arranged in front of the necking assembly 5 .

[0028] The pressing assembly 4 includes a pressing roller group and a support frame 43 which are symmetrically arranged in the upper and lower parts. Each pressing roller group includes a plurality of pressing rollers 41 which can rotate independently. The material to be tested passes through the gaps between the pressing roller groups. The support frames 43 are respectively arranged on both sides of the pressing roller 41. The two ends of the pressing roller 41 are respectively fixedly connected with a driving shaft 42. The support frame 43 is provided with a rotating hole which matches the size of the driving shaft 42. The driving shaft 42 is embedded in the rotating hole. The driving shaft 42 is connected to the output end of the rotating motor to drive the pressing roller 41 to rotate around the axis where the rotating hole is located. The pressing assembly 4 is used to convey and compress the material to be tested. It should be noted that the size of the material to be tested basically matches the size of the pressing roller group. If the size of the material to be tested is much larger than the pressing roller group, the material to be tested needs to be cut in advance.

[0029] The necking assembly 5 includes a plurality of tightening rods 51, which are arranged at equal intervals in the circumferential direction, one end of the tightening rod 51 is slidably connected to the side wall of the lifting clamp 35, and the tightening rod 51 can move radially to clamp and lift the other end of the material to be tested. It should be noted that the tightening rods 51 are arranged circumferentially, including a virtually set center of the circle.

[0030] A cavity 36 is provided in the lifting clamp 35. A straight slot-shaped movable groove 52 is provided on the side of the cavity 36 facing the pressing component 4, and the movable groove 52 faces the center of the circle. The tightening rod 51 is arranged in the movable groove 52, and one end of the tightening rod 51 is connected to the output end of the external translation motor so that the tightening rod 51 moves radially along the movable groove 52. Among them, controlling the tightening rod 51 to move inward by the translation motor belongs to the prior art means, and its specific structure and working principle are not repeated here. The necking component 5 includes an initial state and a necking state. When the necking component 5 is in the initial state, the tightening rod 51 is located on the side of the movable groove 52 away from the center of the circle. When the necking component 5 is in the necking state, the tightening rod 51 is located on the side of the movable groove 52 close to the center of the circle. The tightening rod 51 moves different distances in the movable groove 52 according to actual needs to achieve different clamping degrees.

[0031] The tightening rod 51 includes a shaft 53 and a tightening part. The shaft 53 is located in the moving groove 52, and the tightening part extends horizontally outward. A plurality of clamping grooves 54 are provided on the tightening part, and the clamping grooves 54 cooperate with the outer peripheral surface of the tightening part to form a notch. The plurality of clamping grooves 54 on the same tightening part are arranged at intervals. One side provided with the clamping grooves 54 faces the center of the circle, so as to clamp the material to be tested.

[0032] In this embodiment, when testing, one end of the material is extended into the pressing assembly 4, and the outer peripheral side surfaces of the material to be tested are respectively abutted against the upper and lower pressing roller groups, and the material is pressed while being conveyed to the cavity 36, so that the material can be reduced in volume to facilitate clamping by the shrinking assembly 5; when the material enters the shrinking assembly 5, the four sides of the material are respectively embedded between the tightening rods 51, and the inward retraction distance of the tightening rod 51 is controlled according to the size of the material until the material to be tested is clamped. Due to the presence of the clamping groove 54, the contact area between the material and the tightening rod 51 is increased, and the friction force is simultaneously increased, thereby improving the clamping effect of the material.

[0033] The lifting assembly 3 includes a hydraulic cylinder 31, a telescopic rod 32 and a lifting plate 33. One side of the lifting plate 33 is connected to a lifting clamp 35, and the other side of the lifting plate 33 is connected to the output end of the telescopic rod 32. The hydraulic cylinder 31 is connected to one end of the telescopic rod 32 to drive the lifting clamp 35 to move relative to each other.

[0034] The lifting assembly 3 also includes a rotating disk 34. The rotating disk 34 is arranged between the lifting disk 33 and the lifting pliers 35, and the lifting disk 33 is connected to the lifting pliers 35 through the rotating disk 34. The rotating disk 34 is connected to the output end of the external rotating motor to drive the lifting pliers 35 to rotate around the axis of the telescopic rod 32. A tension sensor is arranged on the telescopic rod 32, and the tension sensor is connected to the external control system to transmit the tensile data to the external control system. The lifting assembly 3 can twist the material while lifting the material to be tested to simulate the actual scene conditions of the shoe material under different conditions, so as to realize a wider range of testing of the material and obtain tensile strength data and feedback under more conditions.

[0035] Working principle: When testing, one end of the material to be tested is first inserted into the clamp 21 , the push plate 24 is driven close to the mounting plate 26 , the puncture needle 25 pierces the material to be tested, and the puncture needle 25 that has passed through the material can be accommodated in the puncture hole 27 . Compared with directly squeezing the material with a push plate, by puncturing the inside of the material, the clamping can be made to rely not only on friction, but also on the strength of clamping, so that the material will not fall off during the tensile test; one end of the material is extended into the pressing component 4, and the outer peripheral side surfaces of the material to be tested are respectively abutted against the upper and lower pressing roller groups, and the material is pressed while being conveyed to the cavity 36, so that the material can be reduced in volume for easy clamping by the shrinking component 5; when the material enters the shrinking component 5, the four sides of the material are respectively embedded between the tightening rods 51, and the inward retraction distance of the tightening rod 51 is controlled according to the size of the material until the material to be tested is clamped. Due to the presence of the clamping groove 54, the contact area between the material and the tightening rod 51 is increased, and the friction force is increased synchronously, thereby improving the clamping effect of the material; at the same time, through the rotation of the rotating disk 34, the pulling component 3 can twist the material while pulling the material to be tested, so as to simulate the actual scene conditions of the shoe material under different conditions.

[0036] Specific embodiment 2: Please refer to Fig. 9 A shoe material tensile strength testing device is provided, and the same details as the first embodiment are not repeated here, and the difference is that it also includes a reinforcing assembly 6, and a plurality of reinforcing assemblies 6 are respectively arranged between adjacent tightening rods 51, and the reinforcing assembly 6 includes a first reinforcing strip 61 and a second reinforcing strip 62, which are respectively fixedly connected to different tightening rods 51. Fig. 9 As shown, the first reinforcement strip 61 is connected to the tightening rod 51, and the second reinforcement strip 62 is connected to another adjacent tightening rod 51, and the spaced reinforcement components 6 form a circle that is arranged around the center of the circle.

[0037] The first reinforcement strip 61 and the second reinforcement strip 62 are slidably connected to each other so that the reinforcement assembly 6 can move with the tightening rod 51. When the tightening rod 51 moves outward, the first reinforcement strip 61 and the second reinforcement strip 62 move away from each other. When the tightening rod 51 moves inward, the first reinforcement strip 61 and the second reinforcement strip 62 move closer to each other. It should be noted that the number of reinforcement assemblies 6 is not limited in this embodiment, and the reinforcement assembly 6 can be a single layer or multiple layers.

[0038] When the material to be tested is compressed by the pressing component 4 and enters the necking component 5, the material to be tested is clamped by the surrounding reinforcement component 6 while passing through the tightening rod 51. The inner sides of the first reinforcement strip 61 and the second reinforcement strip 62 press the material to be tested at the same time, so that the lifting component 3 can have a better clamping effect.

Claims

1. A shoe material tensile strength testing device, used to test the tensile strength of the material to be tested, characterized in that: It comprises a work surface (1), a clamping component (2) and a lifting component (3); The clamping assembly (2) and the lifting assembly (3) are respectively arranged on both sides of the work surface (1) and are at the same horizontal height; the clamping assembly (2) is fixedly arranged, and the lifting assembly (3) is capable of sliding in a horizontal direction relative to the clamping assembly (2); The clamping assembly (2) comprises a clamping forceps (21) and a clamping module, one end of the material to be tested is placed in the clamping module, and the clamping module is capable of clamping and fixing the material to be tested; The lifting assembly (3) comprises a lifting clamp (35), a pressing assembly (4) and a shrinking assembly (5); the pressing assembly (4) and the shrinking assembly (5) are arranged in the lifting clamp (35), and the pressing assembly (4) is arranged in front of the shrinking assembly (5); the pressing assembly (4) comprises a pressing roller group symmetrically arranged in the upper and lower parts, each pressing roller group comprises a plurality of pressing rollers (41) capable of independently rotating, and the material to be tested passes through the gaps between the pressing roller groups; the shrinking assembly (5) comprises a plurality of tightening rods (51), the tightening rods (51) are arranged at equal intervals in the circumferential direction, one end of the tightening rod (51) is slidably connected to the side wall of the lifting clamp (35), and the tightening rod (51) can move radially to clamp and lift the other end of the material to be tested.

2. A shoe material tensile strength testing device according to claim 1, characterized in that: The outer side surface of the clamping clamp (21) is fixedly connected to one end of the clamping rod (22), and the other end of the clamping rod (22) is fixedly connected to the work surface (1); the clamping module comprises a push rod (23), a push plate (24) and a mounting plate (26), and the push plate (24) and the mounting plate (26) are respectively arranged at the opening of the clamping clamp (21) facing each other; one side surface of the push plate (24) is fixedly connected to one end of the push rod (23), and the other end of the push rod (23) is fixedly connected to the output end of the push motor. The push plate (24) and the mounting plate (26) are connected to each other to drive the push plate (24) to move toward the mounting plate (26); a plurality of pricking needles (25) are evenly arranged on the other side of the push plate (24); the mounting plate (26) is fixedly connected to the clamping pliers (21); a plurality of pricking holes (27) are evenly opened on the mounting plate (26), and the pricking holes (27) correspond to the pricking needles (25) one by one; the material to be tested is located between the push plate (24) and the mounting plate (26), and the pricking needles (25) pierce the interior of the material to be tested.

3. A shoe material tensile strength testing device according to claim 1, characterized in that: The pressing assembly (4) further comprises a support frame (43); the support frame (43) is respectively arranged on both sides of the pressing roller (41); the two ends of the pressing roller (41) are respectively fixedly connected with a driving shaft (42); a rotating hole matching the size of the driving shaft (42) is opened on the support frame (43); the driving shaft (42) is embedded in the rotating hole; the driving shaft (42) is connected to the output end of the rotating motor to drive the pressing roller (41) to rotate around the axis of the rotating hole; the pressing assembly (4) is used to convey and compress the material to be tested.

4. A shoe material tensile strength testing device according to claim 1, characterized in that: A cavity (36) is provided in the lifting forceps (35); a straight slot-shaped movable groove (52) is provided on the side of the cavity (36) facing the pressing component (4), and the movable groove (52) faces the center of the circle; a tightening rod (51) is arranged in the movable groove (52), and one end of the tightening rod (51) is connected to the output end of the external translation motor so that the tightening rod (51) moves radially along the movable groove (52); the shrinking component (5) includes an initial state and a shrinking state, when the shrinking component (5) is in the initial state, the tightening rod (51) is located on the side of the movable groove (52) away from the center of the circle; when the shrinking component (5) is in the shrinking state, the tightening rod (51) is located on the side of the movable groove (52) close to the center of the circle.

5. A shoe material tensile strength testing device according to claim 4, characterized in that: The tightening rod (51) comprises a shaft portion (53) and a tightening portion; the shaft portion (53) is located in the movable groove (52), and the tightening portion extends outward horizontally; a plurality of clamping grooves (54) are provided on the tightening portion, the clamping grooves (54) cooperate with the outer peripheral surface of the tightening portion to form a notch, and the plurality of clamping grooves (54) located on the same tightening portion are arranged at intervals; a side provided with the clamping grooves (54) faces the center of the circle, so as to clamp the material to be tested.

6. A shoe material tensile strength testing device according to claim 1, characterized in that: The lifting assembly (3) comprises a hydraulic cylinder (31), a telescopic rod (32) and a lifting plate (33); one side of the lifting plate (33) is connected to a lifting clamp (35), and the other side of the lifting plate (33) is connected to an output end of the telescopic rod (32); the hydraulic cylinder (31) is connected to one end of the telescopic rod (32) to drive the lifting clamp (35) to move relative to each other.

7. A shoe material tensile strength testing device according to claim 6, characterized in that: The lifting assembly (3) further comprises a rotating disk (34); the rotating disk (34) is arranged between the lifting disk (33) and the lifting pliers (35); the lifting disk (33) is connected to the lifting pliers (35) via the rotating disk (34); the rotating disk (34) is connected to the output end of an external rotating motor to drive the lifting pliers (35) to rotate around the axis of the telescopic rod (32).

8. A shoe material tensile strength testing device according to claim 6, characterized in that: A tension sensor is provided on the telescopic rod (32), and the tension sensor is connected to an external control system.

9. A shoe material tensile strength testing device according to claim 1, characterized in that: The work surface (1) comprises a base plate (11), a clamping plate (12) and a lifting plate (13); the clamping plate (12) and the lifting plate (13) are respectively fixedly arranged on two sides of the base plate (11); the clamping assembly (2) is arranged on the clamping plate (12), and the lifting assembly (3) is arranged on the lifting plate (13).

10. A shoe material tensile strength testing device according to claim 4, characterized in that: It also includes a reinforcement assembly (6), wherein a plurality of reinforcement assemblies (6) are respectively arranged between adjacent tightening rods (51), and the reinforcement assembly (6) includes a first reinforcement strip (61) and a second reinforcement strip (62), which are respectively fixedly connected to different tightening rods (51); the first reinforcement strip (61) and the second reinforcement strip (62) are slidably connected to each other so that the reinforcement assembly (6) can move with the tightening rod (51); when the tightening rod (51) moves outward, the first reinforcement strip (61) and the second reinforcement strip (62) move away from each other; when the tightening rod (51) moves inward, the first reinforcement strip (61) and the second reinforcement strip (62) move closer to each other.

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