A folding endurance tester with replaceable test grips

Abstract

The utility model discloses a replaceable test fixture's folding resistance testing machine, including the substrate, the top of substrate is installed respectively and turns over support plate and fixed support plate, the top of turns over support plate and fixed support plate all is installed with fixed station. The utility model discloses through setting up the cooperation structure of fixture connecting mechanism and shoe positioning fixture, realized the quick replacement of test fixture, when needing to test different kinds of shoes or different size toe, heel, only need to rotate the rotating handle, drive the winding wheel winding pull rope, pull rope and enter the storage cavity compression thrust spring and drive locking seat, at this moment can take out the connecting plugboard of shoe positioning fixture from the plug -in slot of positioning seat, replace the shoe positioning fixture of adapting, loosen the rotating handle, under the elastic force of thrust spring, locking seat inserts the jack plug of connecting plugboard, completes the fixation to new fixture, and the operation is convenient and efficient, can quickly adapt the test demand of various shoes.

Description

Technical Field

[0001] This utility model relates to the technical field of shoe testing equipment, specifically a flexural endurance testing machine with interchangeable testing fixtures. Background Technology

[0002] In shoe manufacturing, flexural endurance is a crucial indicator of shoe quality. To ensure good flexural endurance, specialized flexural endurance testing machines are required. Currently, existing flexural endurance testing machines typically use fixed, non-replaceable test fixtures. However, different types of shoes (such as athletic shoes, leather shoes, and cloth shoes) and shoe toe and heel sizes vary significantly. Fixed test fixtures are difficult to adapt to various shoe sizes, limiting the testing range. Testing different shoes often requires replacing the entire testing machine or making complex adjustments, which is not only cumbersome but also reduces testing efficiency and fails to meet diverse testing needs. Therefore, we propose a flexural endurance testing machine with replaceable test fixtures to address the problems mentioned in the background. Utility Model Content

[0003] The purpose of this invention is to provide a flexural endurance testing machine with interchangeable test fixtures to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flexural endurance testing machine with replaceable test fixtures, comprising a base plate, a flip support plate and a fixed support plate respectively mounted on the top of the base plate, a fixed platform mounted on the top of both the flip support plate and the fixed support plate, a cylinder fixedly mounted on one side of each of the two fixed platforms, a fixture connecting mechanism mounted on the telescopic end of the cylinder, a shoe positioning fixture respectively clamped onto the fixture connecting mechanism, a shoe heel clamping component mounted on the fixture connecting mechanism located on the flip support plate, and a drive mechanism for intermittent rotation of the flip support plate mounted on the top of the base plate; The clamping connection mechanism includes a positioning seat, which is fixedly installed on the telescopic end of the cylinder. The positioning seat has symmetrical slots on the side away from the cylinder. A driving cavity is formed inside the positioning seat corresponding to the position between the two slots. A storage cavity is formed inside the positioning seat corresponding to the position between the slots and the driving cavity. A locking seat is fixedly connected to the side wall of the storage cavity away from the slots by a thrust spring. A pulling rope is fixedly connected to the side of the locking seat near the driving cavity. A rotating handle is rotatably connected to the positioning seat at the position corresponding to the driving cavity. The bottom end of the rotating handle passes through the inside of the driving cavity and is fixedly connected to a winding wheel. One end of the pulling rope passes through the inside of the driving cavity and is fixedly connected to the surface of the winding wheel.

[0005] Furthermore, the shoe positioning clamp includes two connecting plates that are adapted to the slot. The inner side of the connecting plates is provided with a hole that is adapted to the locking seat. One end of the two connecting plates is fixedly connected by a horizontal plate. The side of the horizontal plate away from the connecting plates is fixedly connected to the clamp body by two connecting rods.

[0006] Furthermore, the shoe heel clamping component includes a support frame, which is welded to the top of the positioning seat located on the left side. A threaded sleeve is welded onto the support frame, and a screw rod is internally threaded onto the threaded sleeve. A shoe heel clamping block is installed at the bottom end of the screw rod.

[0007] Furthermore, a fixing frame is installed on the top of the substrate, a fixing shaft is welded on the fixing frame, and a rotating seat is fixedly connected to the bottom of the flip support plate, the rotating seat being rotatably connected to the fixing shaft.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves rapid replacement of test fixtures by setting up a clamp connection mechanism and a shoe positioning fixture cooperation structure. When it is necessary to test different types of shoes or different sizes of shoe toes and heels, simply turn the rotating handle to drive the winding wheel to wind up the pull rope. The pull rope pulls the locking seat to compress the thrust spring and enter the storage cavity. At this time, the connecting plate of the shoe positioning fixture can be pulled out from the slot of the positioning seat. After replacing with a suitable shoe positioning fixture, release the rotating handle. Under the elastic force of the thrust spring, the locking seat is inserted into the insertion hole of the connecting plate to complete the fixation of the new fixture. The operation is convenient and efficient and can quickly adapt to the testing needs of various shoes.

[0009] 2. The cylinder in this utility model can adjust the position of the clamping connection mechanism and the shoe positioning clamp according to the overall size of the shoe. The shoe tail clamping part can further fix the shoe tail to ensure the stability of the shoe during the test. At the same time, the drive mechanism drives the flip support plate to rotate intermittently to simulate the bending of the shoe in actual wear, ensuring the accuracy of the test. Combined with the replaceable test clamp, the versatility and testing efficiency of the equipment are greatly improved, and the testing cost is reduced. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the clamp connection mechanism of this utility model; Figure 3 This is a schematic diagram of the shoe positioning clamp of this utility model; Figure 4 This is a schematic diagram of the structure of the flip support plate and drive mechanism of this utility model.

[0011] In the diagram: 1. Base plate, 2. Flip support plate, 3. Fixed support plate, 4. Fixed platform, 5. Cylinder, 6. Clamp connecting mechanism, 61. Positioning seat, 62. Slot, 63. Drive cavity, 64. Storage cavity, 65. Thrust spring, 66. Locking seat, 67. Pull rope, 68. Rotating handle, 69. Winding wheel, 7. Shoe positioning clamp, 71. Connecting insert plate, 72. Insertion hole, 73. Horizontal plate, 74. Clamp body, 8. Shoe heel clamping piece, 81. Support frame, 82. Screw sleeve, 83. Screw, 84. Shoe heel pressure block, 9. Drive mechanism, 91. Motor base, 92. Drive motor, 93. Camshaft, 94. Extrusion cam, 95. Lubricating roller, 10. Fixed frame, 11. Fixed shaft, 12. Rotating seat. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-4 A flexural endurance testing machine with replaceable test fixtures includes a base plate 1. A flip support plate 2 and a fixed support plate 3 are respectively installed on the top of the base plate 1. The flip support plate 2 can rotate around an axis and its top is used to support the heel of the shoe. The top of the fixed support plate 3 is used to support the toe of the shoe. A fixed platform 4 is installed on the top of both the flip support plate 2 and the fixed support plate 3. A cylinder 5 is fixedly installed on one side of each of the two fixed platforms 4. A fixture connecting mechanism 6 is installed on the telescopic end of the cylinder 5. A shoe positioning fixture 7 is respectively clamped on the fixture connecting mechanism 6. The two sets of shoe positioning fixtures 7 can clamp the shoe from the toe and heel of the shoe to ensure the stability of the shoe during the flexural endurance test. A shoe heel clamping member 8 is also installed on the fixture connecting mechanism 6 located on the flip support plate 2. The clamping end of the shoe heel clamping member 8 can extend into the shoe hole of the heel of the shoe and press down to further improve the stability of the shoe during the test. A drive mechanism 9 for intermittent rotation of the flip support plate 2 is also installed on the top of the base plate 1.

[0014] The clamping connection mechanism 6 includes a positioning seat 61, which is fixedly mounted on the telescopic end of the cylinder 5. Slots 62 are symmetrically formed on the side of the positioning seat 61 away from the cylinder 5. A driving cavity 63 is formed inside the positioning seat 61 corresponding to the position between the two slots 62. A receiving cavity 64 is formed inside the positioning seat 61 corresponding to the position between the slots 62 and the driving cavity 63. A locking seat 66 is fixedly connected to the side wall of the receiving cavity 64 away from the slots 62 via a thrust spring 65. A pull rope 67 is fixedly connected to the side of the locking seat 66 near the driving cavity 63. A corresponding pull rope 67 is formed on the top of the positioning seat 61 above the driving cavity. A rotating handle 68 is rotatably connected to position 63. The bottom end of the rotating handle 68 passes through the drive cavity 63 and is fixedly connected to a winding wheel 69. One end of the pull rope 67 passes through the drive cavity 63 and is fixedly connected to the surface of the winding wheel 69. This mechanism achieves efficient clamp replacement through mechanical locking and quick release design: the rotating handle 68 drives the winding wheel 69 to wind up the pull rope 67, which can cause the locking seat 66 to compress the thrust spring 65 and disengage from the slot 62, completing the clamp disassembly; after the rotating handle 68 is released, the rebound force of the thrust spring 65 pushes the locking seat 66 to reset, realizing the automatic locking of the new clamp.

[0015] The shoe positioning clamp 7 includes two connecting plates 71 that mate with slots 62. The inner side of each connecting plate 71 has a socket 72 that mates with a locking seat 66. One end of each connecting plate 71 is fixedly connected via a horizontal plate 73. The side of the horizontal plate 73 away from the connecting plates 71 is fixedly connected to the clamp body 74 via two connecting rods. The clamp body 74 can be designed with different structures depending on the shoe type (e.g., pointed-toe shoes for leather shoes, wide-toe shoes for athletic shoes). The standardized design of the connecting plates 71 and sockets 72 ensures that different clamps... All of them are compatible with the clamping connection mechanism 6. It is worth noting that the clamp body 74 on the fixed support plate 3 is used to press the toe of the shoe. It is a cover-shaped structure that covers the upper surface of the toe of the shoe to ensure the stability of the pressing of the toe of the shoe. The clamp body 74 on the flip support plate 2 is used to fix the heel of the shoe. It can adopt a U-shaped structure, and the inner surface is adapted to the shape of the heel of the shoe to be tested. The two sets of cylinders 5 drive the two sets of clamping connection mechanisms 6 and the two sets of shoe positioning clamps 7 to move relative to each other, so as to achieve clamping of the toe and the heel in opposite directions.

[0016] The shoe heel clamping component 8 includes a support frame 81, which is welded to the top of the positioning seat 61 located on the left side. A screw sleeve 82 is welded onto the support frame 81, and a screw rod 83 is internally threaded onto the screw sleeve 82. A shoe heel clamping block 84 is installed at the bottom end of the screw rod 83. The height of the shoe heel clamping block 84 can be adjusted by rotating the screw rod 83 to adapt to shoe heels of different thicknesses. Together with the shoe positioning clamp 7, it can achieve all-round fixation of the shoe, thereby preventing displacement during testing.

[0017] A fixing frame 10 is installed on the top of the substrate 1. The fixing frame 10 is a U-shaped frame. A fixing shaft 11 is welded on the fixing frame 10. A rotating seat 12 is fixedly connected to the bottom of the flip support plate 2. The rotating seat 12 is rotatably connected to the fixing shaft 11. The cooperation between the fixing shaft 11 and the rotating seat 12 provides a stable rotation fulcrum for the flip support plate 2, ensuring the consistency of the bending action.

[0018] The drive mechanism 9 includes a motor base 91, which is fixedly mounted on the top of the base plate 1. A drive motor 92 is fixedly mounted on the top of the motor base 91. The drive motor 92 is an adjustable speed motor, powered by a battery or an external power source. A camshaft 93 is fixedly connected to the output shaft of the drive motor 92. A bearing seat is mounted on the end of the camshaft 93 away from the drive motor 92, and the bearing seat is fixedly mounted on the top of the base plate 1 to connect and support the end of the camshaft 93, improving its smoothness during rotation. A pressing cam 94 is fixedly connected to the surface of the camshaft 93. One end of the pressing cam 94 has a hole and a lubricating roller 95 is installed inside. The drive motor 92 drives the pressing cam 94 to rotate through the camshaft 93. The eccentric structure of the cam intermittently presses the flipping support plate 2, causing it to reciprocate around the fixed shaft 11, simulating the bending action of a shoe. The lubricating roller 95 can prevent the end of the pressing cam 94 from directly contacting the bottom surface of the flipping support plate 2, thus preventing excessive wear.

[0019] Working principle: Based on the type of shoe to be tested and the size of the toe and heel, select the appropriate shoe positioning clamp 7. When changing the clamp, rotate the rotating handle 68 to drive the winding wheel 69 to rotate. The winding wheel 69 winds up the pull rope 67, which pulls the locking seat 66 into the storage cavity 64 and compresses the thrust spring 65. This causes the locking seat 66 to disengage from the insertion hole 72 on the connecting plate 71 of the original shoe positioning clamp 7, allowing the original clamp to be removed. Insert the connecting plate 71 of the new shoe positioning clamp 7 into the slot 62 of the positioning seat 61, release the rotating handle 68, and the thrust spring 65 returns to its elasticity, pushing the locking seat 66. Insert the 6 into the socket 72 of the connecting plate 71 to complete the replacement and fixation of the shoe positioning clamp 7. Start the cylinder 5 and adjust the position of the clamp connecting mechanism 6 and the shoe positioning clamp 7 so that the shoe positioning clamp 7 is adapted to the toe or heel of the shoe, so that the two ends of the shoe toe and heel are clamped and fixed. Rotate the screw 83 to drive the shoe heel pressing block 84 to move downward and press the shoe heel. After starting the drive motor 92, the camshaft 93 drives the extrusion cam 94 to rotate. The eccentric structure of the cam intermittently extrudes and flips the support plate 2, and makes it reciprocate around the fixed axis 11 to simulate the bending action of the shoe and conduct the test.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexural endurance testing machine with interchangeable test fixtures, comprising a substrate (1), characterized in that: The top of the base plate (1) is respectively equipped with a flip support plate (2) and a fixed support plate (3). The top of the flip support plate (2) and the fixed support plate (3) are respectively equipped with a fixed platform (4). A cylinder (5) is fixedly installed on the opposite side of the two fixed platforms (4). A clamping connection mechanism (6) is installed on the telescopic end of the cylinder (5). A shoe positioning clamp (7) is respectively clamped on the clamping connection mechanism (6). A shoe tail clamping part (8) is also installed on the clamping connection mechanism (6) located on the flip support plate (2). The top of the base plate (1) is also equipped with a drive mechanism (9) for intermittent rotation of the flip support plate (2). The clamping connection mechanism (6) includes a positioning seat (61), which is fixedly installed on the telescopic end of the cylinder (5). The positioning seat (61) has symmetrically arranged slots (62) on the side away from the cylinder (5). A driving cavity (63) is formed inside the positioning seat (61) corresponding to the position between the two slots (62). A receiving cavity (64) is formed inside the positioning seat (61) corresponding to the position between the slots (62) and the driving cavity (63). The receiving cavity (64) is located away from the slots (62)... A locking seat (66) is fixedly connected to the side wall of the side by a thrust spring (65). A pulling rope (67) is fixedly connected to the side of the locking seat (66) near the drive cavity (63). A rotating handle (68) is rotatably connected to the positioning seat (61) at the position corresponding to the drive cavity (63). The bottom end of the rotating handle (68) passes through the drive cavity (63) and is fixedly connected to a winding wheel (69). One end of the pulling rope (67) passes through the drive cavity (63) and is fixedly connected to the surface of the winding wheel (69).

2. The flexural endurance testing machine with interchangeable test fixtures according to claim 1, characterized in that: The shoe positioning clamp (7) includes two connecting plates (71) that are adapted to the slot (62). The inner side of the connecting plate (71) is provided with a socket (72) adapted to the locking seat (66). One end of the two connecting plates (71) is fixedly connected by a horizontal plate (73). The side of the horizontal plate (73) away from the connecting plate (71) is fixedly connected to the clamp body (74) by two connecting rods.

3. The flexural endurance testing machine with interchangeable test fixtures according to claim 2, characterized in that: The shoe heel clamping component (8) includes a support frame (81), which is welded to the top of the positioning seat (61) located on the left side. A threaded sleeve (82) is welded on the support frame (81), and a screw rod (83) is internally threaded onto the threaded sleeve (82). A shoe heel clamping block (84) is installed at the bottom end of the screw rod (83).

4. The flexural endurance testing machine with interchangeable test fixtures according to claim 3, characterized in that: A fixing frame (10) is installed on the top of the substrate (1), and a fixing shaft (11) is welded on the fixing frame (10). A rotating seat (12) is fixedly connected to the bottom of the flip support plate (2), and the rotating seat (12) is rotatably connected to the fixing shaft (11).

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