A hosiery stretch tester

Abstract

The utility model discloses a kind of stretch detectors of socks, including rack, the rack is equipped with sliding slot and fixed clamping plate, along the sliding slot direction is equipped with movable clamping plate opposite to fixed clamping plate interval, the movable clamping plate is driven lifting by the cylinder setting in inside rack, movable clamping plate and fixed clamping plate are respectively provided with clamping block one and clamping block two, clamping block one and clamping block two interval are arranged, wherein the upper and lower ends of sock are respectively clamped between clamping block one and clamping block two, sliding mechanism is equipped above the clamping block one, for monitoring whether the sock clamping of clamping block two appears to separate whether. The utility model is tested when carrying out the longitudinal tensile property of sock, by adding sliding mechanism, so that in testing process, whether sock clamping place separates problem can be instantaneously fed back, and detection can be stopped in time, and sock transverse tensile property can be detected synchronously.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, specifically to a sock stretch tester. Background Technology

[0002] Tensile testing instruments are mainly used to measure the longitudinal and transverse elongation values ​​of stockings, swimwear, pantyhose, abdominal binders, knitted pants, etc., to test their elongation performance. The tension in stockings is achieved by adding elastic cords during the knitting process. However, frequent putting on and taking off of socks in daily life causes these elastic cords to lose their elasticity, resulting in the socks losing tension and failing to properly wrap around the feet, ultimately rendering them unusable.

[0003] Before socks are sold after production, their quality needs to be tested to determine their elasticity. This is typically done by assessing the length and number of stretches performed. However, this testing involves clamping both ends of the sock and repeatedly stretching it. This process can easily lead to slight separation between the clamping points and the sock, resulting in significant discrepancies between the test data and actual usage data.

[0004] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a sock stretch tester, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sock stretchability testing instrument, comprising a frame, a sliding groove and a fixed clamping plate on the frame, and a movable clamping plate spaced apart from the fixed clamping plate along the sliding groove. The movable clamping plate is driven to rise and fall by a cylinder installed inside the frame. Clamping block one and clamping block two are respectively provided on the movable clamping plate and the fixed clamping plate, and clamping block one and clamping block two are spaced apart. The upper and lower ends of the sock are clamped between clamping block one and clamping block two, respectively. A sliding mechanism is provided above clamping block one to monitor whether the sock clamping at clamping block two has detached.

[0009] Preferably, the sliding mechanism includes a first roller pivotally connected to the fixed clamping plate, a second roller on one side, a transverse moving block connected to the inner side of the second roller, and the transverse moving block connected to the side of the fixed clamping plate by a spring, which makes the second roller close to the first roller by means of the spring's thrust.

[0010] Preferably, during testing, the upper part of the sock is left with extra size and is inserted between the second roller and the first roller to secure it.

[0011] Preferably, the side of the movable clamp is connected to a straight rod, the straight rod is horizontally arranged and its outer end forms a concave-convex deformation, and a support rod with the same shape and size as the straight rod and arranged in a mirror image is provided above the straight rod, the support rod is connected to the side of the frame.

[0012] Preferably, an extension rod is provided between the support rod and the straight rod, the end of the extension rod is flush with the end of the support rod, and an expansion block adapted to the shape of an ankle is installed at the end of the extension rod.

[0013] (III) Beneficial Effects

[0014] After adopting the above technical solution, this utility model has the following advantages compared with the prior art: When testing the longitudinal tensile performance of socks, this utility model provides a sock tensile testing instrument. By adding a sliding mechanism, it can instantly provide feedback on whether the sock clamping point has come loose during the testing process and can stop the test in time.

[0015] Secondly, the testing device can also simultaneously test the lateral tensile performance of socks. Specifically, an expansion block that mimics the shape of the ankle is installed at the end of the extension rod. This allows the entire opening of the sock to be inserted into the expansion block, forming an initial tension maintenance on the sock and assisting in stabilizing the sock opening to a certain extent. This makes it easier to mimic the local force of the sock on the foot. The sock opening is then pulled inward and put over the support rod and straight rod to test the lateral tensile performance. The test data is more reliable. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the detection location of this utility model.

[0018] In the diagram: 1. Frame; 2. Slide groove; 3. Fixed clamping plate; 4. Movable clamping plate; 5. Clamping block two; 6. Clamping block one; 7. Roller one; 8. Roller two; 9. Longitudinal moving block; 10. Spring; 11. Straight rod; 12. Support rod; 13. Extension rod; 14. Expansion block. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-2 As shown: A sock stretch tester includes a frame 1, on which a slide groove 2 and a fixed clamping plate 3 are provided. A movable clamping plate 4 is provided along the slide groove 2 and is spaced apart from the fixed clamping plate 3. The movable clamping plate 4 extends horizontally inward into the slide groove 2 through a support block and is driven to rise and fall by an internally provided cylinder.

[0021] Clamping blocks 6 and 5 are respectively installed on the movable clamping plate 4 and the fixed clamping plate 3 (which can be adjusted and fastened to the movable clamping plate 4 and the fixed clamping plate 3 by bolts). Clamping blocks 6 and 5 are spaced apart and can clamp the upper and lower ends of the sock. In use, the two ends of the sock are clamped between clamping blocks 6 and 5 respectively. The cylinder in the drive position drives the movable clamping plate 4 to move downward, which drives clamping blocks 6 to move in the opposite direction to test the longitudinal tensile performance of the sock.

[0022] Furthermore, a sliding mechanism is provided above the clamping block 6. The sliding mechanism includes a roller 7 pivotally connected to the fixed clamping plate 3, and a roller 8 on one side. A transverse moving block is connected to the inner side of the roller 8. The transverse moving block is connected to the side of the fixed clamping plate 3 through a spring 10. The transverse moving block uses the pushing force of the spring 10 to make the roller 8 close to the roller 7.

[0023] When using, the upper part of the sock should be left with extra size and inserted between roller 28 and roller 17 to secure it.

[0024] The sliding mechanism is used to detect whether the sock has come off during the tensile performance test. Specifically, when the sock slightly comes off clamp 2 (5), it will instantly generate an external force on the rotating shaft 1, causing it to rotate. An electrical contact needs to be installed at roller 1 (7) to provide feedback to the PLC when the rotating shaft 1 rotates under force. The cylinder is synchronously connected to the PLC to control and stop the rotation of roller 1 (7).

[0025] A straight rod 11 is connected to the side of the movable clamping plate 4. The straight rod 11 is horizontally arranged and its outer end has a concave-convex deformation. Above the straight rod 11 is a support rod 12 with the same shape and size and arranged in a mirror image. The support rod 12 is connected to the side of the frame 1. In use, the inlet of the sock is slipped onto the ends of the support rod 12 and the straight rod 11. The horizontal tensile performance of the sock is tested by moving the straight rod 11 downward.

[0026] Furthermore, because the sock opening widens as the straight rod 11 moves downwards, the sock cannot be fixed in place during the stretch test. This results in fewer stress points on the sock during stretching, making it prone to slipping and slipping off, leading to inaccurate test data. Therefore, the support rod 12 and the straight rod 11 need to be extended further into the sock opening. However, this makes it impossible to measure the lateral stretch data at the opening. Also, the sock is not in use when stretching, so the measured data will differ significantly from the actual usage data, resulting in low reference value for the test data.

[0027] Therefore, as attached Figure 2As shown, an extension rod 13 is set between the support rod 12 and the straight rod 11. The end of the extension rod 13 is flush with the end of the support rod 12. An expansion block 14 that imitates the shape of an ankle is placed at the end of the extension rod 13. This allows the entire opening of the sock to be inserted into the expansion block, which initially maintains the tension of the sock and helps stabilize the opening of the sock to a certain extent. This makes it easier to imitate the local force of the sock on the foot. Then, the opening of the sock is pulled inward and put over the support rod 12 and the straight rod 11 to test the lateral tensile performance.

[0028] The above-described embodiments are provided for illustrative purposes. Based on the above description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined according to the claims.

Claims

1. A sock stretch testing instrument, comprising a frame, wherein the frame is provided with a slide groove and a fixed clamping plate, and a movable clamping plate is provided along the slide groove and spaced apart from the fixed clamping plate, the movable clamping plate being driven to rise and fall by a cylinder provided inside the frame, characterized in that: The movable clamp and the fixed clamp are respectively provided with clamping block one and clamping block two, which are arranged at intervals. The upper and lower ends of the sock are clamped between clamping block one and clamping block two respectively. A sliding mechanism is provided above clamping block one to monitor whether the sock is detached from clamping block two.

2. The sock stretch testing instrument according to claim 1, characterized in that: The sliding mechanism includes a first roller pivotally connected to a fixed clamping plate, and a second roller on one side. A transverse moving block is connected to the inner side of the second roller. The transverse moving block is connected to the side of the fixed clamping plate by a spring. The second roller is pressed against the first roller by the thrust of the spring.

3. The sock stretchability tester according to claim 2, characterized in that: During testing, the upper part of the sock is left with extra space and is then inserted between roller two and roller one to secure it.

4. The sock stretch testing instrument according to claim 1, characterized in that: The movable clamp is connected to a straight rod on its side. The straight rod is horizontally arranged and its outer end has a concave-convex deformation. Above the straight rod is a support rod with the same shape and size as it and arranged in a mirror image. The support rod is connected to the side of the frame.

5. The sock stretch testing instrument according to claim 4, characterized in that: An extension rod is provided between the support rod and the straight rod. The end of the extension rod is flush with the end of the support rod, and an expansion block adapted to the shape of an ankle is installed at the end of the extension rod.

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