Knitted sock elasticity testing equipment

Abstract

The invention relates to the field of elasticity testing, in particular to knitted sock elasticity testing equipment which comprises two bases, the two bases are symmetrically arranged, first electric push rods are fixedly connected to the bases, moving blocks are fixedly connected to the opposite ends of the two first electric push rods, and connecting columns are fixedly connected to the opposite ends of the two moving blocks. Clamping blocks are slidably arranged on the upper sides and the lower sides of the opposite ends of the two moving blocks. The knitted sock elasticity testing equipment provided by the invention can continuously test deformation lengths of socks in two directions, is more cost-saving and more efficient, can prevent the socks from being burst through a mechanical action without using a pressure monitoring device, and can continuously test the deformation lengths of the socks in two directions when the socks recover to the initial shapes. The non-Newtonian fluid enables the socks to be withdrawn more quickly and stably, the socks are prevented from being damaged, the extension block is located in the non-Newtonian fluid, the swing block is recovered slowly, the situation that nearby workers are hurt due to too high speed is prevented, and the socks are safer.

Description

Technical Field

[0001] The invention relates to the field of elasticity testing, in particular to a knitted socks elasticity testing device. Background Art

[0002] Products made from knitted fabrics after processing and weaving are called textiles. According to their uses, they can be divided into three categories: clothing textiles, decorative textiles and industrial products. Clothing textiles include socks, and socks include tube socks with openings at both ends, such as pile socks. During the production process of socks, elasticity measuring devices are usually used to measure the elasticity of knitted fabrics, which requires a testing device for the production of knitted socks.

[0003] In the existing elasticity testing device, the socks need to be placed in a clamping position or put on the device to perform length elasticity test and sock opening and closing elasticity test on the socks. However, the existing device usually cannot test these two directions continuously, and the socks need to be placed back in the testing device for the next step, which reduces the efficiency and increases the limitations of the test. In addition, it is not convenient to automatically classify the socks after the elasticity test. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a knitted socks elasticity testing device.

[0005] The present invention adopts the following technical scheme, a knitted socks elasticity testing device, comprising two bases, the two bases are symmetrically arranged, an electric push rod 1 is fixedly connected to the base, the opposite ends of the two electric push rods 1 are fixedly connected to moving blocks, the opposite ends of the two moving blocks are fixedly connected to connecting columns, and the upper and lower sides of the opposite ends of the two moving blocks are slidably arranged with clamping blocks, one end of the clamping block located in the moving block is fixedly connected to the moving block with an electric push rod 3, four placement boxes are placed at the lower end of the connecting column, and also includes:

[0006] A fluid cavity, used for containing a non-Newtonian fluid, wherein the fluid cavity is opened in the moving block and contains the non-Newtonian fluid;

[0007] The unloading mechanism can make unloading of the socks after classification more convenient, and the unloading mechanism is arranged in the moving block;

[0008] The sensing mechanism can replace the traditional pressure sensor and can make the socks recover more quickly and evenly, and the sensing mechanism is arranged in the moving block;

[0009] And a switching mechanism can classify unqualified socks in detail, and the switching mechanism is arranged in the moving block.

[0010] As a further description of the above technical solution: the induction mechanism includes a sliding disk horizontally slidably arranged in the fluid cavity, an electric push rod 2 is arranged at one end of the connecting column away from the moving block, the upper end of the electric push rod 2 is fixedly connected to a sleeve block, an insert block is movably inserted at the upper end of the sleeve block, a spring 2 is fixedly connected between the bottom end of the insert block and the sleeve block, two opposite side walls of the bottom end of the insert block are in contact with friction blocks, and the friction block is fixed in the sleeve block, the upper end of the insert block is fixedly connected to a top plate, the side wall of the insert block is fixedly connected to a pull rope, and the other end of the pull rope Connected to the sliding disk, the connecting column also has a top plate, a sleeve block, an insert block, two springs and a friction block in one end close to the moving block, and the angle between the top plate arranged close to the moving block and the other top plate is ninety degrees. A pull rod is fixedly connected to one end of the top plate arranged close to the moving block, and the pull rod is slidably arranged on the outer wall of the connecting column. The upper end of the top plate arranged close to the moving block is flush with the outer wall of the connecting column. A squeezing block is fixedly connected to the lower side of the top plate on the moving block. After the top plate moves downward, the squeezing block can make the top plate move upward and contact with the friction block again.

[0011] As a further description of the above technical scheme: the switching mechanism includes a circular plate horizontally slidably arranged in the fluid cavity, a swing block is provided on the side of the circular plate away from the sliding disk, and the swing block is rotatably arranged in the moving block, an oblique arc block is fixedly connected in the swing block, and two pressure frames are provided on the side of the oblique arc block close to the sliding disk, the two pressure frames are respectively fixed to two pull ropes, and the two pull ropes are respectively connected to the two plug-in block side walls on the connecting column, three equally spaced limit grooves are provided on the moving block, a limit rod is movably inserted into one end of the swing block close to the limit groove, and a spring four is fixedly connected between one end of the limit rod located in the swing block and the swing block, an inclined sliding surface is provided at one end of the limit rod, and a spring three is fixedly connected between one end of the swing block and the moving block, a switch is provided on the swing block at one side of the pressure frame, an extension block is fixedly connected to one end of the swing block close to the circular plate, and the extension block is rotatably arranged in the circular plate, and the extension block extends into the cavity between the circular plate and the sliding disk.

[0012] As a further description of the above technical solution: the unloading mechanism includes a rotating plate fixedly connected to the bottom end of the swing block, a slide plate is movably inserted at the end of the moving block away from the connecting column, a spring is fixedly connected between the end of the slide plate located inside the moving block and the moving block, and three extrusion rods are fixedly connected to the end of the slide plate close to the connecting column.

[0013] As a further description of the above technical solution: a plurality of through holes are provided on the sliding disk.

[0014] As a further description of the above technical solution: when the insert block contacts the friction block, the second spring is in a stretched state.

[0015] As a further description of the above technical solution: the end of the inclined arc block close to the pressure frame is provided with inclined surface 1 and inclined surface 2, the slope of inclined surface 1 is larger than that of inclined surface 2, and one of the pressure frames is arranged corresponding to inclined surface 1.

[0016] As a further description of the above technical solution: two switches are provided, and the two switches can respectively control the reverse movement of the electric push rod 2 and the electric push rod 1.

[0017] The present invention provides a knitted socks elasticity testing device through improvement, which has the following improvements and advantages compared with the prior art:

[0018] First, the device can continuously measure the deformation length of the socks in two directions, which is more cost-effective and efficient. It does not require a pressure monitoring device and can prevent the socks from being torn through mechanical action. When the socks return to their original shape, the non-Newtonian fluid allows the socks to be retracted faster and more smoothly, preventing damage to the socks.

[0019] Second: In four cases, the rotating plate can be rotated to different angles, and then the limiting rod is inserted into the corresponding limiting groove to fix the rotating plate, so that when the socks are subsequently removed, the socks can slide into different placement boxes through the rotating plate. A relatively simple mechanical device can be used instead of the control system, further saving costs, and four different socks can be distinguished, which is convenient for subsequent targeted trimming of the socks;

[0020] Third: When the swing block is reset, since the extension block is located in the non-Newtonian fluid, the swing block recovers slowly, preventing the speed from injuring nearby workers, which is safer;

[0021] In summary, the device can continuously measure the deformation length of the socks in two directions, which is more cost-effective and efficient, and does not require the use of a pressure monitoring device. The socks can be prevented from being torn by mechanical action, and when the socks return to their initial shape, the non-Newtonian fluid allows the socks to be retracted faster and more smoothly to prevent damage to the socks. Since the extension block is located in the non-Newtonian fluid, the swing block recovers more slowly to prevent excessive speed from injuring nearby workers, which is safer. In four situations, the rotating plate can be rotated to different angles, and then the limiting rod can be inserted into the corresponding limiting groove to fix the rotating plate, so that when the socks are subsequently removed, the socks can slide through the rotating plate into different placement boxes, and a simpler mechanical device can be used instead of the control system, which further saves costs, and can distinguish four different socks, which is convenient for subsequent targeted trimming of the socks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1A schematic structural diagram of a knitted socks elasticity testing device provided by an embodiment of the present invention;

[0024] Figure 2 A three-dimensional cross-sectional view of a moving block provided by an embodiment of the present invention;

[0025] Figure 3 A three-dimensional cross-sectional view of a connecting column provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a switching mechanism provided by an embodiment of the present invention;

[0027] Figure 5 A schematic diagram of the structure of a swing block provided in an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the structure of an oblique arc block provided in an embodiment of the present invention;

[0029] Figure 7 A schematic diagram of the structure of the limit groove provided in an embodiment of the present invention;

[0030] Figure 8 for Figure 2 The enlarged view of point A in the middle;

[0031] Fig. 9 for Figure 2 The enlarged view of point B in the middle;

[0032] Fig.10 for Figure 2 Enlarged view of point C in the middle;

[0033] Fig.11 for Figure 3 Enlarged view of point D in the middle.

[0034] In the figure: 1. base; 2. electric push rod one; 3. placement box; 4. moving block; 5. connecting column; 6. clamping block; 7. unloading mechanism; 71. rotating plate; 72. sliding plate; 73. squeezing rod; 74. spring one; 8. induction mechanism; 81. sliding plate; 82. electric push rod two; 83. top plate; 84. pull rope; 85. pull rod; 86. sleeve block; 87. insert block; 88. spring two; 89. switch; 810. friction block; 811. squeezing block; 9. switching mechanism; 91. round plate; 92. swing block; 93. limit groove; 94. extension block; 95. limit rod; 96. spring three; 97. pressure frame; 98. spring four; 99. oblique arc block; 991. inclined plane one; 992. inclined plane two; 10. fluid cavity; 11. electric push rod three. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below with reference to specific diagrams. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0036] See also Figure 1 - Fig.11 The embodiment of the present invention provides a technical solution: a knitted socks elasticity testing device, comprising two bases 1, the two bases 1 are symmetrically arranged, an electric push rod 2 is fixedly connected to the base 1, the opposite ends of the two electric push rods 2 are fixedly connected to moving blocks 4, the opposite ends of the two moving blocks 4 are fixedly connected to connecting columns 5, and the upper and lower sides of the opposite ends of the two moving blocks 4 are slidably arranged with clamping blocks 6, one end of the clamping block 6 located in the moving block 4 is fixedly connected to the moving block 4 with an electric push rod 3 11, and four placement boxes 3 are placed at the lower end of the connecting column 5, and also include:

[0037] The fluid chamber 10 is used to contain the non-Newtonian fluid. The fluid chamber 10 is opened in the moving block 4. The non-Newtonian fluid is contained in the fluid chamber 10.

[0038] The unloading mechanism 7 can make unloading of the socks after classification more convenient, and the unloading mechanism 7 is arranged in the moving block 4;

[0039] The sensing mechanism 8 can replace the traditional pressure sensor and can make the socks recover more quickly and evenly. The sensing mechanism 8 is arranged in the moving block 4;

[0040] And the switching mechanism 9 can classify the unqualified socks in detail, and the switching mechanism 9 is arranged in the moving block 4.

[0041] Specifically, the device can continuously measure the deformation length of the socks in two directions, which is more cost-effective and efficient, and does not require the use of a pressure monitoring device. The socks can be prevented from being torn by mechanical action. When the socks return to their original shape, the non-Newtonian fluid allows the socks to be retracted faster and more smoothly, preventing damage to the socks.

[0042] In the four cases, the rotating plate 71 can be rotated to different angles, and then the limiting rod 95 is inserted into the corresponding limiting groove 93, so that the rotating plate 71 can be fixed, so that when the socks are subsequently unloaded, the socks can slide into different placement boxes 3 through the rotating plate 71, and a relatively simple mechanical device can be used instead of the control system, which further saves costs, and can distinguish four different socks, which is convenient for the subsequent targeted trimming of the socks;

[0043] When the swing block 92 is reset, since the extension block 94 is located in the non-Newtonian fluid, the swing block 92 is restored relatively slowly, which prevents the swing block 92 from being injured by nearby workers due to excessive speed, and is safer.

[0044] In another embodiment provided by the present invention, the sensing mechanism 8 includes a sliding disk 81 horizontally slidably arranged in the fluid cavity 10, an electric push rod 82 is arranged at one end of the connecting column 5 away from the moving block 4, the upper end of the electric push rod 82 is fixedly connected to a sleeve block 86, an insert block 87 is movably inserted at the upper end of the sleeve block 86, a spring 88 is fixedly connected between the bottom end of the insert block 87 and the sleeve block 86, two opposite side walls of the bottom end of the insert block 87 are both in contact with friction blocks 810, and the friction block 810 is fixedly connected to the sleeve block 86, the upper end of the insert block 87 is fixedly connected to a top plate 83, the side wall of the insert block 87 is fixedly connected to a pull rope 84, and the other end of the pull rope 84 is connected to the sliding disk 81 Then, a top plate 83, a sleeve block 86, an insert block 87, a spring 88 and a friction block 810 are also provided in the end of the connecting column 5 close to the moving block 4, and the angle between the top plate 83 arranged close to the moving block 4 and the other top plate 83 is ninety degrees. A pull rod 85 is fixedly connected to one end of the top plate 83 arranged close to the moving block 4, and the pull rod 85 is slidably arranged on the outer wall of the connecting column 5. The upper end of the top plate 83 arranged close to the moving block 4 is flush with the outer wall of the connecting column 5. A squeezing block 811 is fixedly connected to the lower side of the top plate 83 on the moving block 4. After the top plate 83 moves downward, the squeezing block 811 can make the top plate 83 move upward and contact with the friction block 810 again.

[0045] The sliding plate 81 is provided with a plurality of through holes.

[0046] When the insert block 87 contacts the friction block 810, the spring 2 88 is in a stretched state.

[0047] Specifically, the device can continuously measure the deformation length of the socks in two directions, which is more cost-effective and efficient, and does not require the use of a pressure monitoring device. The socks can be prevented from being broken through mechanical action. When the socks return to their original shape, the non-Newtonian fluid allows the socks to be retracted faster and more smoothly, preventing damage to the socks.

[0048] In another embodiment provided by the present invention, the switching mechanism 9 includes a circular plate 91 horizontally slidably arranged in the fluid chamber 10, a swing block 92 is arranged on the side of the circular plate 91 away from the sliding disk 81, and the swing block 92 is rotatably arranged in the moving block 4, an oblique arc block 99 is fixedly connected in the swing block 92, and two pressing frames 97 are arranged on the side of the oblique arc block 99 close to the sliding disk 81, the two pressing frames 97 are respectively fixed to the two pull ropes 84, and the two pull ropes 84 are respectively connected to the side walls of the two plug blocks 87 on the connecting column 5, and three equally spaced limit grooves 9 are opened on the moving block 4 3. A limiting rod 95 is movably inserted at one end of the swing block 92 near the limiting groove 93, and a spring 98 is fixedly connected between one end of the limiting rod 95 located in the swing block 92 and the swing block 92. An inclined sliding surface is provided at one end of the limiting rod 95, and a spring 3 96 is fixedly connected between one end of the swing block 92 and the moving block 4. A switch 89 is provided on one side of the pressure frame 97 of the swing block 92. An extension block 94 is fixedly connected to one end of the swing block 92 near the circular plate 91, and the extension block 94 is rotatably arranged in the circular plate 91, and the extension block 94 extends into the cavity between the circular plate 91 and the sliding disk 81.

[0049] An end of the bevel block 99 close to the pressing frame 97 is provided with a slope 1 991 and a slope 2 992 . The slope of the slope 1 991 is greater than that of the slope 2 992 . One of the pressing frames 97 is arranged corresponding to the slope 1 991 .

[0050] There are two switches 89, and the two switches 89 can control the reverse movement of the electric push rod 2 82 and the electric push rod 1 2 respectively.

[0051] Specifically, in the four situations, the rotating plate 71 can be rotated to different angles, and then the limiting rod 95 is inserted into the corresponding limiting groove 93, so that the rotating plate 71 can be fixed, so that when the socks are subsequently removed, the socks can slide into different placement boxes 3 through the rotating plate 71. A simpler mechanical device can be used instead of the control system, further saving costs, and four different socks can be distinguished, which is convenient for subsequent targeted trimming of the socks.

[0052] In another embodiment provided by the present invention, the unloading mechanism 7 includes a rotating plate 71 fixed to the bottom end of the swing block 92, a slide plate 72 is movably inserted into the end of the moving block 4 away from the connecting column 5, a spring 74 is fixedly connected between the end of the slide plate 72 located in the moving block 4 and the moving block 4, and three squeezing rods 73 are fixedly connected to the end of the slide plate 72 close to the connecting column 5.

[0053] Specifically, when the swing block 92 is reset, since the extension block 94 is located in the non-Newtonian fluid, the swing block 92 is restored relatively slowly, thereby preventing the swing block 92 from injuring nearby workers due to excessive speed, which is safer.

[0054] Working principle: When using the device, first put the two ends of the tube socks on the outer walls of the connecting column 5 on both sides, then start the electric push rod 3 11, and the clamping blocks 6 on the upper and lower opposite sides move closer to the connecting column 5, thereby clamping the tube socks on the outer wall of the connecting column 5, and then start the electric push rod 2 82 to move the top plate 83 outward, and then the top plate 83 will expand the socks. If it has not moved to the specified range and the deformation of the socks has reached the limit, the downward pressure of the socks on the top plate 83 will be greater than the friction between the plug block 87 and the friction block 810, and then The top plate 83 and the insert block 87 will move downward. When the insert block 87 is separated from the friction block 810, due to the tension of the second spring 88 and the squeezing of the socks, the insert block 87 will move downward at a very fast speed in an instant. At this time, the pull rope 84 will also drive the sliding plate 81 to move faster in the non-Newtonian fluid. Due to the characteristics of the non-Newtonian fluid, the non-Newtonian fluid becomes hard. At this time, the pull rope 84 will drive the corresponding pressure frame 97 to move. The pressure frame 97 squeezes the switch 89, causing the electric push rod 82 to shrink and quickly retract the top plate 83. To prevent the socks from being torn, when the top plate 83 is retracted, the tension of the second spring 88 can make the top plate 83 retract faster, but the tension of the second spring 88 is not uniform, which will change the speed of the socks' shape recovery. The more uniform the speed of the socks' shape recovery, the more stable the socks can be restored to their original state, thus preventing damage to the socks. The non-Newtonian fluid can make the insert 87 move downward slowly and uniformly, start the electric push rod 1 2, and the connecting columns 5 on both sides move away from each other, so as to detect the lateral tensile strength of the socks. If the socks The deformation of the socks has reached the limit, then the electric push rod 2 will shrink as mentioned above, and when the two ends of the tube socks are put on the outer walls of the connecting column 5 on both sides, the socks can squeeze the pull rod 85 to one side, thereby restoring the top plate 83 near the pull rod 85. The device can continuously measure the deformation length of the socks in two directions, which is more cost-effective and more efficient, and does not require the use of a pressure monitoring device. The socks can be prevented from being torn by mechanical action, and when the socks return to their original shape, the socks can be retracted faster and more smoothly to prevent damage to the socks.

[0055] If the deformation of the socks in both directions is acceptable, the pressing frame 97 will not move;

[0056] If the first detected vertical deformation is unqualified, the pressing frame 97 corresponding to the inclined surface 1 991 will press the inclined surface 1 991 to make the inclined arc block 99 rotate clockwise. If the subsequent lateral deformation is qualified, the inclined arc block 99 will no longer rotate.

[0057] If the vertical deformation detected first fails, but the subsequent lateral deformation also passes, the oblique arc block 99 will squeeze the second oblique surface 992, so that the oblique arc block 99 rotates a greater angle;

[0058] If the vertical deformation detected first and the subsequent lateral deformation are unqualified, the oblique arc block 99 will squeeze the inclined surface 1 991 to rotate the oblique arc block 99 to a smaller angle;

[0059] In the above four situations, the rotating plate 71 can be rotated to different angles, and then the limiting rod 95 is inserted into the corresponding limiting groove 93, so that the rotating plate 71 can be fixed, so that when the socks are subsequently unloaded, the socks can slide into different placement boxes 3 through the rotating plate 71, and a relatively simple mechanical device can be used instead of the control system, which further saves costs, and can distinguish four different socks, which is convenient for the subsequent targeted trimming of the socks;

[0060] The electric push rod 2 is further retracted, and the bottom end of the base 1 will squeeze the slide plate 72 inward, so that the extrusion rod 73 presses the limit rod 95 in the limit groove 93 back into the swing block 92, thereby resetting the swing block 92, which is more convenient. When the swing block 92 is reset, since the extension block 94 is located in the non-Newtonian fluid, the swing block 92 recovers more slowly, preventing the excessive speed from injuring nearby personnel, which is safer.

[0061] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and the description in the specification are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A knitted sock elasticity testing device, comprising two bases (1), the two bases (1) are symmetrically arranged, an electric push rod (2) is fixedly connected to the base (1), the opposite ends of the two electric push rods (2) are fixedly connected to moving blocks (4), the opposite ends of the two moving blocks (4) are fixedly connected to connecting columns (5), and clamping blocks (6) are slidably arranged on the upper and lower sides of the opposite ends of the two moving blocks (4), one end of the clamping block (6) located in the moving block (4) is fixedly connected to an electric push rod (11) between the moving block (4), and four placement boxes (3) are placed at the lower end of the connecting column (5), characterized in that: Also includes: A fluid chamber (10) for containing a non-Newtonian fluid, wherein the fluid chamber (10) is disposed in the moving block (4), and contains the non-Newtonian fluid; The unloading mechanism (7) can make unloading of the socks after classification more convenient, and the unloading mechanism (7) is arranged in the moving block (4); The sensing mechanism (8) can replace the traditional pressure sensor and can make the socks recover more quickly and evenly. The sensing mechanism (8) is arranged in the moving block (4); And a switching mechanism (9) can be used to carefully classify unqualified socks, and the switching mechanism (9) is arranged in the moving block (4).

2. A knitted socks elasticity testing device according to claim 1, characterized in that: The sensing mechanism (8) comprises a sliding disk (81) horizontally slidably arranged in the fluid cavity (10); an electric push rod (82) is arranged at one end of the connecting column (5) away from the moving block (4); a sleeve block (86) is fixedly connected to the upper end of the electric push rod (82); an insert block (87) is movably inserted into the upper end of the sleeve block (86); a spring (88) is fixedly connected between the bottom end of the insert block (87) and the sleeve block (86); two opposite side walls of the bottom end of the insert block (87) are both in contact with friction blocks (810), and the friction block (810) is fixedly connected to the sleeve block (86); a top plate (83) is fixedly connected to the upper end of the insert block (87); a pull rope (84) is fixedly connected to the side wall of the insert block (87); the other end of the pull rope (84) is connected to the sliding disk (81); and the connecting column (5) comprises a plurality of connecting rods, each of which is provided with a plurality of connecting rods. A top plate (83), a sleeve block (86), an insert block (87), a second spring (88) and a friction block (810) are also provided in one end of the column (5) close to the moving block (4), and the angle between the top plate (83) close to the moving block (4) and the other top plate (83) is ninety degrees. A pull rod (85) is fixedly connected to one end of the top plate (83) close to the moving block (4), and the pull rod (85) is slidably arranged on the outer wall of the connecting column (5). The upper end of the top plate (83) close to the moving block (4) is flush with the outer wall of the connecting column (5). A squeezing block (811) is fixedly connected to the lower side of the top plate (83) on the moving block (4). After the top plate (83) moves downward, the squeezing block (811) can make the top plate (83) move upward and contact with the friction block (810) again.

3. A knitted socks elasticity testing device according to claim 1, characterized in that: The switching mechanism (9) comprises a circular plate (91) horizontally slidably arranged in the fluid cavity (10); a swing block (92) is arranged on the side of the circular plate (91) away from the sliding disk (81); and the swing block (92) is rotatably arranged in the moving block (4); an oblique arc block (99) is fixedly connected in the swing block (92); two pressing frames (97) are arranged on the side of the oblique arc block (99) close to the sliding disk (81); the two pressing frames (97) are respectively fixedly connected to two pull ropes (84); and the two pull ropes (84) are respectively connected to the side walls of two plug blocks (87) on the connecting column (5); three equally spaced limiting grooves (93) are opened on the moving block (4); the swing block (9 2) A limiting rod (95) is movably inserted at one end close to the limiting groove (93), and a spring four (98) is fixedly connected between one end of the limiting rod (95) located in the swing block (92) and the swing block (92), an inclined sliding surface is provided at one end of the limiting rod (95), a spring three (96) is fixedly connected between one end of the swing block (92) and the moving block (4), a switch (89) is provided on one side of the pressure frame (97) on the swing block (92), an extension block (94) is fixedly connected to one end of the swing block (92) close to the circular plate (91), and the extension block (94) is rotatably arranged in the circular plate (91), and the extension block (94) extends into the cavity between the circular plate (91) and the sliding disk (81).

4. The knitted socks elasticity testing device according to claim 1, characterized in that: The unloading mechanism (7) comprises a rotating plate (71) fixedly connected to the bottom end of the swing block (92); a slide plate (72) is movably inserted into the end of the moving block (4) away from the connecting column (5); a spring (74) is fixedly connected between the end of the slide plate (72) located inside the moving block (4) and the moving block (4); and three squeeze rods (73) are fixedly connected to the end of the slide plate (72) close to the connecting column (5).

5. The knitted socks elasticity testing device according to claim 2, characterized in that: The sliding plate (81) is provided with a plurality of through holes.

6. The knitted socks elasticity testing device according to claim 2, characterized in that: When the insert block (87) contacts the friction block (810), the second spring (88) is in a stretched state.

7. The knitted socks elasticity testing device according to claim 3, characterized in that: The end of the bevel block (99) close to the pressing frame (97) is provided with a first bevel (991) and a second bevel (992), wherein the slope of the first bevel (991) is greater than that of the second bevel (992), and one of the pressing frames (97) is arranged corresponding to the first bevel (991).

8. The knitted socks elasticity testing device according to claim 3, characterized in that: There are two switches (89), and the two switches (89) can respectively control the reverse movement of the electric push rod 2 (82) and the electric push rod 1 (2).

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