Tension testing machine for silk stockings

Abstract

The utility model discloses a tension testing machine for silk stockings. The tension testing machine comprises a base and a positioning rod which is arranged on the base and is used for sleeving the silk stockings, expansion units are symmetrically arranged on the two sides of the positioning rod; the expansion unit comprises an expansion arm capable of transversely displacing, and the expansion arm transversely extends to realize expansion of the silk stockings; each expansion unit comprises a telescopic assembly which is connected with the corresponding expansion arm and drives the corresponding expansion arm to stretch out and draw back transversely; according to the tension testing machine for the silk stockings provided by the utility model, symmetrical expansion is realized through the X-shaped hinge mechanism, and the displacement control precision is remarkably improved by matching with the scale indication system, so that the precision control of the silk stockings in expansion states with different widths is realized; meanwhile, the clamping time of the silk stockings is shortened through the combination of the arc-shaped surfaces and the damping strips, so that the testing efficiency is improved, and the breakage rate of the silk stockings is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of sock production equipment, and in particular to a tensile strength testing machine for stockings. Background Technology

[0002] As a close-fitting textile, the lateral elasticity and resilience of stockings directly affect wearing comfort and lifespan. Current elasticity testing largely relies on manual stretch assessment or simple unidirectional testing with a tensile tester. However, these testing methods have the following drawbacks:

[0003] 1. Manual touch testing is highly subjective, making it difficult to obtain accurate expansion values ​​through stretching, and also unable to quantify the elastic recovery rate;

[0004] 2. General stretching machines can only test longitudinal stretchability, and lateral stretching usually requires fixing the two sides of the stockings, which cannot simulate the expansion state when the human body is wearing them, thus affecting the subsequent production quality and usage quality of the stockings. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a tensile testing machine for stockings, which tests the elastic properties of stockings with different expansion widths by adjusting the expansion structure.

[0006] To solve the above-mentioned technical problems, the present invention provides a tensile strength testing machine for stockings, comprising:

[0007] A base and a positioning rod on the base for attaching stockings;

[0008] The positioning rod is symmetrically provided with expansion units on both sides;

[0009] The expansion unit includes a laterally displaceable expansion arm that extends laterally to expand the stockings;

[0010] The expansion unit includes a telescopic component connected to the expansion arm and driving the expansion arm to extend and retract laterally.

[0011] In the above scheme, preferably, the positioning rod includes a first rod body located at one end of the base and a second rod body located at the other end, and a telescopic frame that cooperates with the expansion unit is provided between the first rod body and the second rod body.

[0012] In the above scheme, preferably, the first rod body is provided with a positioning ring, and the positioning ring includes a plurality of damping strips that cooperate with the top of the stocking.

[0013] In the above scheme, preferably, the end of the second rod is provided with an arc-shaped surface for the stocking opening to be inserted.

[0014] In the above scheme, preferably, the telescopic assembly includes a first telescopic rod and a second telescopic rod arranged in a cross-rotation configuration;

[0015] One end of the first telescopic rod is rotatably connected to the telescopic frame, and the other end is intersected with the second telescopic rod and slidably connected to the expansion arm via a pin.

[0016] One end of the second telescopic rod is rotatably connected to the expansion arm, and the other end is intersected with the first telescopic rod and slidably connected to the telescopic frame via a pin.

[0017] In the above scheme, preferably, the expansion arm is provided with a first sliding groove for the first telescopic rod to slide;

[0018] The telescopic frame is provided with a second sliding groove for the second telescopic rod to slide.

[0019] In the above scheme, preferably, the first slide groove and the second slide groove are arranged parallel to the axis of the positioning rod.

[0020] In the above scheme, preferably, the positioning rod is slidably provided with a driving rod that drives the second telescopic rod to slide along the second slide groove, and the end of the driving rod is provided with a driving block that is rotatably connected to the second telescopic rods on both sides.

[0021] In the above scheme, preferably, the base is provided with a drive unit connected to the drive rod;

[0022] The drive unit is one of an electric actuator, a pneumatic actuator, a hydraulic actuator, or a linear module.

[0023] In the above scheme, preferably, the surface of the drive rod is provided with a scale along the axis of the rod body, and the base is provided with an indicator needle that cooperates with the drive rod to indicate the driving length of the drive rod.

[0024] The beneficial effects of this utility model are: This utility model provides a tensile testing machine for stockings, which achieves symmetrical expansion through an X-type hinge mechanism and, in conjunction with a scale indication system, significantly improves the displacement control accuracy, thereby achieving precise control of stockings in different width expansion states;

[0025] Meanwhile, the combination of curved surfaces and damping strips increases the clamping time of stockings, thereby improving testing efficiency and reducing the breakage rate of stockings. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0028] Figure 3 This is a schematic diagram of the retracted state of the expansion arm of this utility model.

[0029] Figure 4 This is a perspective view of the connection structure between the telescopic component and the drive rod of this utility model.

[0030] Figure 5 This is a three-dimensional structural diagram of the positioning rod of this utility model.

[0031] Figure 6 This is a three-dimensional structural diagram of the expansion arm of this utility model. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-6 .

[0033] A tensile strength testing machine for stockings includes a base 1 and a positioning rod 2 disposed on the base 1 for fitting stockings. The positioning rod 2 includes a first rod body 201 and a second rod body 202. The end of the first rod body 201 is fixed to the base 1, and the second rod body 202 is disposed at the end away from the base 1. The length of the first rod body 201 or the second rod body 202 can be adjusted to accommodate different stocking lengths. Specifically, an elastic sleeve can be provided in the middle part of the first rod body 201 or the second rod body 202 to achieve elasticity.

[0034] A positioning ring 204 is fitted onto the first rod body 201. The outer surface of the positioning ring 204 is provided with a plurality of damping strips 205 arranged in an array along the ring's central axis. The damping strips 205 and the positioning ring 204 can be integrally formed, or the damping strips 205 can be separately fitted onto the outer surface of the positioning ring 204. In order to enable the positioning ring 204 to fix the stocking opening, the damping strips 205 can be made of silicone strips, and the positioning ring 204 can be made of plastic or silicone material.

[0035] The end of the second rod 202 away from the base 1 is provided with an arc-shaped surface 206 for the pantyhose opening to be threaded through, thereby preventing the pantyhose from snagging when being put on.

[0036] The positioning rod 2 is symmetrically provided with expansion units 3 on both sides. Specifically, the first rod body 201 and the second rod body 202 are fixedly connected by a telescopic frame 203, and the expansion units 3 are symmetrically arranged on both sides of the telescopic frame 203. Figure 1-2 As shown, the expansion unit 3 includes an expansion arm 301 that can be laterally displaced. The expansion arm 301 has an arc-shaped surface and adopts an overall arc-shaped sheet structure, such as... Figure 6 As shown, the expansion arm 301 initially has the same diameter as or slightly smaller than the diameter of the positioning rod 2, such as... Figure 3 The diagram shows the expansion arm 301 in its unexpanded state.

[0037] In this embodiment, after the stocking cuff is fitted onto the positioning ring 204 of the first rod 201 via the second rod 202, the stocking is expanded by the lateral displacement of the expansion arm 301; the expanded state is as follows. Figure 1 As shown.

[0038] The expansion unit 3 includes a telescopic assembly 4 connected to the expansion arm 301 and driving the expansion arm 301 to extend and retract laterally; specifically, the telescopic assembly 4 is an X-shaped shear telescopic structure, and the telescopic assembly 4 includes a first telescopic rod 401 and a second telescopic rod 402 arranged in a cross-rotation configuration; that is, the first telescopic rod 401 is rotatably connected to the middle of the second telescopic rod 402 through a central pin fulcrum, as shown below. Figure 4 As shown.

[0039] One end of the first telescopic rod 401 is rotatably connected to the telescopic frame 203 via a pin, and the other end is slidably connected to the expansion arm 301 via a pin after being intersected with the second telescopic rod 402. The expansion arm 301 is provided with a first sliding groove 302 for the first telescopic rod 401 to slide, that is, the other end of the first telescopic rod 401 slides in the first sliding groove 302 via a pin.

[0040] One end of the second telescopic rod 402 is rotatably connected to the expansion arm 301, and the other end is slidably connected to the telescopic frame 203 via a pin after being intersected with the first telescopic rod 401; the telescopic frame 203 is provided with a second sliding groove 303 for the second telescopic rod 402 to slide; that is, the other end of the second telescopic rod 402 slides in the second sliding groove 303 via a pin, and the first sliding groove 302 and the second sliding groove 303 are arranged parallel to the axis of the positioning rod 2, such as Figure 2 As shown, this enables the expansion arm 301 to slide horizontally in the lateral direction, so that the lateral force received by the stocking during expansion is uniform and the entire expansion arm 301 is in contact with the inner surface of the stocking.

[0041] The positioning rod 2 is slidably provided with a driving rod 5 that drives the second telescopic rod 402 to slide along the second sliding groove 303. Specifically, the driving rod 5 is located at the center of the first rod body 201, and the driving rod 5 is a hexagonal rod. After its guide slides through the first rod body 201, a driving block 501 is provided in the telescopic frame 203. The two ends of the driving block 501 are rotatably connected to the second telescopic rod 402 symmetrically arranged on both sides by pins. Figure 2 and Figure 4 As shown.

[0042] The base 1 is equipped with a right drive unit at its tail. The drive unit is one of an electric push rod, a pneumatic push rod, a hydraulic push rod, or a linear module. The push rod end of the drive unit is connected to the drive rod 5 through a coupling to realize the lateral sliding of the drive rod 5. The surface of the drive rod 5 is laser-engraved with scale lines (graduation value 0.5mm). A mechanical indicator needle is set on the side of the base 1 to display the expansion displacement in real time in conjunction with the scale lines. This allows for the adjustment of different expansion displacement amounts when testing stockings of different materials and qualities to achieve accurate testing.

[0043] In this embodiment, the first telescopic rod 401 and the second telescopic rod 402 are made of bent plates. The middle part of the telescopic rod can be hollowed out to facilitate the smooth movement of the first telescopic rod 401 and the second telescopic rod 402 when folding and telescopic.

[0044] Using a tensile testing machine for stockings as described above:

[0045] S1: Sample clamping: Insert the cuff of the stocking into the damping strip 205 of the positioning ring 204, and lay the toe of the stocking flat along the arc surface 206 of the second rod body 202 to the end;

[0046] S2: Lateral expansion: Start the electric push rod to push the drive rod 5 forward, the drive block 501 drives the second telescopic rod 402 to slide along the second slide groove 303, the X-shaped telescopic component 4 unfolds, so that the expansion arm 301 symmetrically expands outward to the set width (maximum stroke 80mm).

[0047] S3: Load Holding Test: Maintain the expanded state for 30 seconds;

[0048] S4: Reset test: The electric push rod retracts the drive rod 5, the telescopic component 4 closes, and the residual deformation of the stockings after retraction is measured.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hosiery pull tester characterized by: The utility model relates to a silk sock expanding device, including The base (1) and the positioning rod (2) for setting silk socks are set on the base (1); The positioning rod (2) is symmetrically provided with expansion unit (3) on both sides; The expansion unit (3) includes the expansion arm (301) that can be transversely displaced, and the expansion arm (301) is transversely stretched to realize the expansion of silk socks; The expansion unit (3) includes the telescopic assembly (4) connected with the expansion arm (301) and driving the expansion arm (301) to transversely stretch and retract.

2. A hosiery pull testing machine according to claim 1, characterized in that: The positioning rod (2) includes the first rod body (201) set on one end of the base (1) and the second rod body (202) set on the other end, and the telescopic frame (203) matched with the expansion unit (3) is arranged between the first rod body (201) and the second rod body (202).

3. A hosiery pull testing machine according to claim 2, wherein: The first rod body (201) is provided with a positioning ring (204), and the positioning ring (204) includes a plurality of damping strips (205) matched with the sock top.

4. A hosiery pull testing machine according to claim 2, wherein: The second rod body (202) is provided with an arc surface (206) for the sock top.

5. A hosiery pull testing machine according to claim 2, wherein: The telescopic assembly (4) includes the first telescopic rod (401) and the second telescopic rod (402) cross-rotatingly arranged; One end of the first telescopic rod (401) is rotatably connected with the telescopic frame (203), the other end is cross-arranged with the second telescopic rod (402), and the first telescopic rod (401) is slidably connected with the expansion arm (301) through a pin shaft; One end of the second telescopic rod (402) is rotatably connected with the expansion arm (301), the other end is cross-arranged with the first telescopic rod (401), and the second telescopic rod (402) is slidably connected with the telescopic frame (203) through a pin shaft.

6. A hosiery pull testing machine according to claim 5, wherein: The expansion arm (301) is provided with a first sliding groove (302) for the first telescopic rod (401) to slide; The telescopic frame (203) is provided with a second sliding groove (303) for the second telescopic rod (402) to slide.

7. A hosiery pull testing machine according to claim 6, wherein: The first sliding groove (302) and the second sliding groove (303) are arranged in parallel along the axis of the positioning rod (2).

8. A hosiery pull testing machine according to claim 7, wherein: The drive rod (5) for driving the second telescopic rod (402) to slide along the second sliding groove (303) is slidably arranged in the positioning rod (2), and the drive rod (5) is provided with a drive block (501) rotatably connected with the second telescopic rod (402) on both sides at the end portion.

9. A hosiery pull testing machine according to claim 8, wherein: The base (1) is provided with a driving unit connected with the drive rod (5); The driving unit is one of an electric push rod, an air push rod, a hydraulic push rod or a linear module.

10. A hosiery pull testing machine according to claim 9, wherein: The surface of the drive rod (5) is provided with a scale along the rod body axis direction, and the base (1) is provided with an indicating needle matched with the drive rod (5) to indicate the driving length of the drive rod (5).

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