Automatic detection device for tensile property of socks

Abstract

The invention relates to a sock tensile property automatic detection device which comprises a detection table, moving blocks are slidably connected to the two sides of the top of the detection table, and the two moving blocks are driven by electric push rods fixed to the upper portion of the detection table; the tops of the two moving blocks are fixedly connected with a containing platform used for containing socks. The invention relates to the technical field of sock detection. According to the automatic detection device for the tensile property of the socks, through unique stretching roller winding and a push plate-limiting block linkage locking mechanism, the pain point that the socks are fixed and are prone to slipping in traditional detection is successfully solved, transverse stretching force is innovatively converted into circumferential wrapping stress, and the test result is closer to the real wearing experience. According to the device, the detection efficiency and the data reliability are remarkably improved, and a powerful technical support platform is provided for production quality control, process improvement and product research, development and upgrading of socks.

Description

Technical Field

[0001] The present invention relates to the technical field of socks detection, in particular to an automatic detection device for the tensile properties of socks. Background Art

[0002] Socks are essential textiles for daily wear. Their tensile properties, including elasticity, recovery, strength, and durability, directly impact comfort and longevity. Standardized tensile testing is crucial for sock production and quality control. For example, these tests measure the lateral elasticity of the sock opening, longitudinal elongation of the sock body, tear resistance, and fatigue life after repeated stretching.

[0003] Currently, the testing of sock tensile properties mainly relies on specialized tensile testing machines or manual operation. Existing technical solutions generally have the following significant defects: Manual operation is inefficient and subject to significant errors: Many testing devices require operators to manually clamp the ends of the socks to the test fixture before testing. This process is tedious and time-consuming, and it is difficult to maintain consistent clamping position and tightness. Uneven manual force application or visual errors can directly affect the accuracy of tensile displacement and force data, resulting in unreliable test results and difficulty meeting the testing needs of mass production.

[0004] Unreliable fixing methods lead to test interruptions: During tensile testing, especially repeated tensile fatigue testing, socks are prone to slippage and even falling off the clamp. Common clamping methods, such as ordinary flat clamps, can easily cause indentations or damage to the thin and soft sock body under high tension, while some devices using Velcro have the problem of weakening adhesion after repeated use. Although some equipment has attempted to use electric grippers, the positioning of the sock mainly relies on external geometry (such as the edge of the sock opening), which is difficult to adapt to socks with no clear boundary at the sock opening (such as boat socks and invisible socks). It also does not solve the problem of localized slippage caused by uneven force at the junction of the sock opening and the sock body. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic detection device for the tensile properties of socks, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic testing device for the tensile properties of socks, comprising a testing platform, wherein both sides of the top of the testing platform are slidably connected to movable blocks, and the two movable blocks are driven by an electric push rod fixed above the testing platform; The tops of the two moving blocks are fixedly connected with a placement platform for placing socks; One side of the moving block is rotatably connected to a stretching roller driven by a motor, and a Velcro surface for adsorbing the socks is fixed on the surface of the stretching roller. The inner cavity of the moving block is slidably connected to a limit block located directly below the stretching roller through a sliding groove, and one side of the stretching roller is fixedly connected to a push plate, and one side of the limit block is provided with an abutment block that coincides with the movement trajectory of the push plate. When in use, according to the length of the socks, the positions of the two moving blocks are first adjusted by the electric push rod, and the positions of the two stretching rollers are adjusted so that the Velcro surfaces on their surfaces can correspond to the two sides of the socks, and then the socks are placed on the placement plate. At this time, under the action of gravity, the two ends of the socks automatically droop and are adhered by the Velcro surface. , and then the motor drives the stretching roller to rotate, driving the socks to rotate so that they are wrapped around the surface of the stretching roller, and then when the stretching roller rotates, it drives the push plate to rotate, pushing the abutment block, driving the limit block to squeeze the reset spring to move to the right in the sliding groove. When the push plate is rotated to a vertical state, the arc groove is squeezed on the surface of the sock, clamping it between the stretching roller and the arc groove, effectively positioning it to prevent it from sliding during stretching, and then the electric push rod is used to control the moving block to open for stretching test, and the stretching data is displayed on the display screen for detection and automatic positioning. In the process of fixing, the lateral tension is automatically converted into circumferential tension, which can be automatically locked.

[0007] As a further solution of the present invention: the placement platform includes two placement plates respectively fixed on the sides of the two moving blocks, and the two placement plates are fixedly connected on opposite sides with comb-shaped plates that are plugged into each other to form a plane. When in use, the socks are placed on the surface of the placement plates. When the socks are of different lengths, the electric push rod can be started to drive the moving block to move and drive the placement plate to move, so as to adapt the length of the socks for placement.

[0008] As a further solution of the present invention: the inner cavity of the limit block is provided with an arc groove adapted to the surface of the stretching roller, through which the socks on the surface of the stretching roller can be squeezed and firmly pressed on the surface of the stretching roller for positioning.

[0009] As a further solution of the present invention: the inner cavity of the limit block is provided with a guide groove located on the right side of the arc groove, and the guide groove is adapted to the movement trajectory of the push plate. When the push plate rotates, the guide groove prevents interference, and then the push plate moves to abut the abutment block, driving the limit block to squeeze the return spring to move to the right in the sliding groove. When the push plate is rotated to a vertical state, the arc groove is squeezed on the surface of the sock, clamping it between the stretching roller and the arc groove, effectively positioning it to prevent it from sliding during stretching.

[0010] As a further solution of the present invention: when the stretching roller is located at the initial position, the push plate is horizontally arranged on the left side of the stretching roller.

[0011] As a further solution of the present invention: a reset spring fixedly connected to the inner cavity of the sliding groove is fixedly connected to one side of the limit block, and the reset spring can quickly push the limit block to reset in the sliding groove to prevent jamming.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Triple progressive locking mechanism: First level of Velcro: Initially, gravity allows the Velcro to naturally sag and adhere to the Velcro surface, providing a reliable first-level fixation that adapts to a variety of fabrics. It is damage-free and has strong self-adhesion capabilities.

[0013] The second stage of dynamic wrapping involves a motor-driven stretching roller, which actively wraps the sock around its surface one or more times. This cleverly converts the subsequent lateral stretching force into circumferential friction and wrapping stress between the sock surface and the roller. This not only increases the contact area and significantly increases the upper limit of frictional resistance, but also simulates the actual stress state of the sock when it is inflated by the foot. This is particularly important for testing the sock cuff.

[0014] The third linkage rigid clamping: Through the mechanical cooperation of the push plate, the abutment block and the guide groove, the rotational motion of the stretching roller is converted into the precise linear displacement of the limit block. When the winding reaches the optimal position, the arc groove of the limit block is rigidly and completely pressed against the sock on the surface of the wrapped stretching roller. This surface-matching clamping method provides a strong final locking force, which can effectively prevent any form of slippage or loosening of the sock even under extremely high tensile loads or repeated stretching. It fundamentally solves the core pain point of traditional fixtures that are prone to slippage, leading to test interruption or data distortion. It can withstand a tensile force of more than 50N without loosening or slipping.

[0015] Through a unique stretch roller winding and push plate-limit block interlocking locking mechanism, the device successfully addresses the pain point of socks slipping during traditional testing. It also innovatively converts transverse tensile force into circumferential wrapping stress, making test results more accurate to the actual wearing experience. This device significantly improves testing efficiency and data reliability, providing a strong technical support platform for sock production quality control, process improvement, and product R&D upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A top view of the structure of the present invention; Figure 3 It is a structural schematic diagram of the clamping state of the present invention.

[0017] In the figure: 1. Testing table; 2. Moving block; 3. Electric push rod; 4. Stretching roller; 5. Velcro surface; 6. Push plate; 7. Limit block; 8. Guide groove; 9. Arc groove; 10. Return spring; 11. Placement plate; 12. Socks; 13. Comb plate; 14. Abutment block; 15. Sliding groove. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1-3 The present invention provides a technical solution: an automatic detection device for the tensile properties of socks, comprising a detection platform 1, wherein both sides of the top of the detection platform 1 are slidably connected to moving blocks 2, and the two moving blocks are driven by an electric push rod 3 fixed above the detection platform 1; The tops of the two moving blocks 2 are fixedly connected with a placement platform for placing the socks 12; One side of the moving block 2 is rotatably connected to a stretching roller 4 driven by a motor, and a Velcro surface 5 for adsorbing the socks is fixed on the surface of the stretching roller 4. The inner cavity of the moving block 2 is slidably connected to a limit block 7 located directly below the stretching roller 4 through a sliding groove 15, and one side of the stretching roller 4 is fixedly connected to a push plate 6, and one side of the limit block 7 is provided with an abutment block 14 that coincides with the movement trajectory of the push plate 6. When in use, according to the length of the socks, the positions of the two moving blocks 2 are first adjusted by the electric push rod 3, and the positions of the two stretching rollers 4 are adjusted so that the Velcro surfaces 5 on their surfaces can correspond to the two sides of the socks 12, and then the socks 12 are placed on the placement plate 11. At this time, under the action of gravity, the two ends of the socks 12 automatically droop and are adhered by the Velcro surface 5, and then The rear motor drives the stretching roller 4 to rotate, driving the sock 12 to rotate so that it is wrapped around the surface of the stretching roller 4, and then drives the push plate 6 to rotate when the stretching roller 4 rotates, pushing the abutment block 14, driving the limit block 7 to squeeze the return spring 10 to move to the right in the sliding groove 15. When the push plate 6 is rotated to the vertical state, the arc groove 9 is squeezed on the surface of the sock 12, clamping it between the stretching roller 4 and the arc groove 9, effectively positioning it to prevent it from sliding during stretching, and then the electric push rod 3 is used to control the moving block 2 to open for stretching test, and the stretching data is displayed on the display screen for detection and automatic positioning. In the process of fixing, the lateral tension is automatically converted into circumferential tension, which can be automatically locked.

[0020] The placement platform includes two placement plates 11 respectively fixed on the sides of the two moving blocks 2. The two placement plates 11 are fixedly connected on opposite sides with comb-shaped plates 13 that are plugged into each other to form a plane. When in use, the socks 12 are placed on the surface of the placement plates 11. When the socks are of different lengths, the electric push rod 3 can be started to drive the moving block 2 to move, and the placement plate 11 can be driven to move to adapt to the length of the socks for placement.

[0021] The inner cavity of the limiting block 7 is provided with an arc groove 9 adapted to the roller surface of the stretching roller 4. The arc groove 9 can squeeze the sock 12 on the surface of the stretching roller 4 and firmly squeeze it on the surface of the stretching roller 4 for positioning.

[0022] The inner cavity of the limit block 7 is provided with a guide groove 8 located on the right side of the arc groove 9. The guide groove 8 is adapted to the movement trajectory of the push plate 6. When the push plate 6 rotates, the guide groove 8 prevents interference. Then the push plate 6 moves to abut the abutment block 14, driving the limit block 7 to squeeze the return spring 10 to move to the right in the sliding groove 15. When the push plate 6 is rotated to the vertical state, the arc groove 9 is squeezed on the surface of the sock 12, clamping it between the stretching roller 4 and the arc groove 9, effectively positioning it to prevent it from sliding during stretching.

[0023] When the stretching roller 4 is located at the initial position, the push plate 6 is horizontally arranged on the left side of the stretching roller 4 .

[0024] One side of the limit block 7 is fixedly connected to a return spring 10 which is fixedly connected to the inner cavity of the sliding groove 15. The return spring 10 can quickly push the limit block 7 to return to its original position in the sliding groove 15 to prevent jamming.

[0025] The core of the automatic sock tensile performance testing device lies in its unique mechanical structure of winding drive combined with interlocking locking. This automates the entire process from sock loading to testing, particularly resolving the pain point of unreliable clamping and implementing an innovative method of converting tensile force into circumferential wrapping stress. The workflow is as follows: Device initialization and position adaptive adjustment: The operator starts the equipment, and the control module drives the electric push rods 3 on both sides of the top of the detection platform 1 to work according to the preset or input sock size information, usually the length.

[0026] The electric push rod 3 pushes the moving block 2 connected thereto to slide along a predetermined track on the testing platform 1 , and accurately adjusts the distance between the two moving blocks 2 to adapt to the length of the socks 12 to be tested.

[0027] The placement plates 11 fixed on the sides of the moving block 2 move synchronously therewith, and the comb-shaped plates 13 on the placement plates 11 on both sides are plugged into each other at the docking position to form a continuous and flat supporting surface, ensuring that the socks will not sag locally due to gaps when placed.

[0028] Socks loading and initial adsorption: The operator lays the socks 12 flat on the support plane formed by the two placement plates 11. At this time, since the socks are in a flat state and have a certain length, their two ends will droop naturally.

[0029] The outer surface of the stretching roller 4 located on the side of the moving block 2 is covered with a Velcro surface 5. During the drooping process of the two ends of the socks, their ends will automatically approach and contact the Velcro surface 5 on the corresponding side. The strong hook and hair adhesion properties of the Velcro surface can reliably and initially absorb the two ends of the socks. This step utilizes the natural positioning of gravity to achieve pre-fixation of the socks.

[0030] Automatic winding and drive locking linkage: The control module starts the motor driving the stretching roller 4, and the motor drives the left and right stretching rollers 4 to rotate synchronously, usually inward, so that the two ends of the sock are wound toward the middle.

[0031] When the stretching roller 4 rotates, the sock 12 adsorbed on the surface is wrapped around the surface of the roller. As the number of wrapping turns increases, it is usually wrapped at least half a turn to more than one turn. The sock is not only tightened, but more importantly, significant circumferential friction and wrapping force are generated between the sock and the roller surface.

[0032] At the same time, a key linkage structure starts to work: the push plate 6 fixed on one side of the stretching roller 4 rotates together with the stretching roller 4, and the starting position is usually horizontally located on the left side of the roller.

[0033] The rotation trajectory of the push plate 6 is designed to pass through the gap on one side of the limit block 7 in the sliding groove 15 in the inner cavity of the moving block 2 - the guide groove 8 to ensure that the push plate moves smoothly without interference, and finally abuts against the specially designed abutment block 14 on the other side of the limit block 7.

[0034] As the push plate 6 continues to rotate and pushes in the vertical direction, it pushes the abutment block 14, forcing the limit block 7 to overcome the force of the return spring 10 installed inside the limit block 7 and slide rightward in the sliding groove 15 away from the stretching roller.

[0035] When the push plate 6 is rotated to the vertical state, that is, the 90-degree position, the pushing stroke reaches the maximum. At this time, the limit block 7 has moved to the rightmost position. The inner cavity of the limit block 7 is designed with an arc groove 9 that accurately matches the curvature of the roller surface of the stretching roller 4. At the current position, the curved surface of the arc groove 9 is tightly pressed against the surface of the stretching roller 4 on which part of the sock has been wrapped.

[0036] In this way, the sock 12 wrapped around the stretching roller 4 is effectively clamped between the outer surface of the stretching roller 4 and the inner curved surface of the arc groove 9 of the limit block 7. At this point, the sock completes triple fixation: initial Velcro adsorption, circumferential friction generated by winding, and final rigid compression and locking achieved by the push plate-limit block linkage mechanism. This step fundamentally prevents the sock from slipping during subsequent strong tensile tests.

[0037] To perform tensile testing: After the locking is completed, the tensile test phase officially begins.

[0038] The control module drives the electric push rods 3 on both sides in reverse, so that the two moving blocks 2 that were originally close together, together with the stretching roller assembly on which the socks are firmly clamped, move away from each other and move outward.

[0039] Since both ends of the sock are firmly positioned on the stretching roller assemblies on both sides, the outward thrust of the electric push rod 3 is directly converted into a tensile load of the sock itself in the longitudinal direction.

[0040] The force sensor and displacement sensor integrated in the device monitor the changes in tension and elongation during the stretching process in real time. The data is transmitted to the control module for processing and analysis, and the tensile force-displacement curve is displayed in real time on the display screen, or the target performance parameters such as maximum tension, elongation under specific tension, breaking strength, residual deformation, recovery rate, etc. are directly calculated and output. The program can also be preset to perform cyclic tensile fatigue testing.

[0041] Test completion and mechanism reset: After the stretching test is completed, the control module first drives the motor of the stretching roller 4 to rotate in reverse.

[0042] The reversal of the stretching roller 4 causes the push plate 6 to separate from the abutment block 14 from the vertical state. Once the thrust disappears, the limit block 7 instantly slides back to its initial position in the sliding groove 15 to the left under the strong elastic force of its internal return spring 10, and its arc groove 9 also breaks away from the squeezing of the socks on the surface of the stretching roller 4.

[0043] As the stretching roller 4 continues to reverse, the socks wrapped around the roller surface naturally loosen and fall off, and the adhesive force of the Velcro surface 5 is naturally overcome during the peeling process, or an auxiliary peeling mechanism can be designed.

[0044] The operator can then remove the socks once the test is complete.

[0045] The electric push rod 3 drives the moving block 2 to return to the initial spacing or move to the position required for the next test to adapt to the new sock size. The equipment completes the reset and waits for the next test cycle.

[0046] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic detection device for the tensile properties of socks, comprising a detection platform (1), characterized in that: Both sides of the top of the detection platform (1) are slidably connected to moving blocks (2), and the two moving blocks are driven by electric push rods (3) fixed above the detection platform (1); The tops of the two moving blocks (2) are both fixedly connected with a placement platform for placing socks (12); One side of the moving block (2) is rotatably connected to a stretching roller (4) driven by a motor, a Velcro surface (5) for adsorbing socks is fixed on the surface of the stretching roller (4), the inner cavity of the moving block (2) is slidably connected to a limit block (7) located directly below the stretching roller (4) through a sliding groove (15), one side of the stretching roller (4) is fixedly connected to a push plate (6), and one side of the limit block (7) is provided with an abutment block (14) that coincides with the motion trajectory of the push plate (6).

2. The automatic detection device for the tensile properties of socks according to claim 1, characterized in that: The placement platform comprises two placement plates (11) respectively fixed on the sides of the two moving blocks (2), and the two placement plates (11) are fixedly connected on opposite sides with comb-shaped plates (13) that are plugged into each other to form a plane.

3. The automatic detection device for the tensile properties of socks according to claim 1, characterized in that: The inner cavity of the limit block (7) is provided with an arc groove (9) adapted to the roller surface of the stretching roller (4).

4. The automatic detection device for the tensile properties of socks according to claim 3, characterized in that: The inner cavity of the limit block (7) is provided with a guide groove (8) located on the right side of the arc groove (9), and the guide groove (8) is adapted to the motion trajectory of the push plate (6).

5. The automatic detection device for the tensile properties of socks according to claim 1, characterized in that: When the stretching roller (4) is located at the initial position, the push plate (6) is horizontally arranged on the left side of the stretching roller (4).

6. The automatic detection device for the tensile properties of socks according to claim 1, characterized in that: A return spring (10) is fixedly connected to one side of the limit block (7) and is fixedly connected to the inner cavity of the sliding groove (15).

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