Device for detecting strength of elastic polyester yarn
By employing a fixing mechanism in the polyester filament strength testing device, using a hydraulic cylinder and a motor-driven V-shaped clamp to fix the polyester filament, the problem of unstable fixing at both ends of the polyester filament is solved, achieving convenient and efficient strength testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU NANDI TECHNOLOGY CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-17
AI Technical Summary
In current polyester filament strength testing, it is difficult to avoid knotting, loosening, and detachment at both ends of the fixed polyester filament, which makes the testing inconvenient.
A fixed mechanism is used, and a hydraulic cylinder is used to control the movement of the movable block so that the V-shaped clamping block aligns with the V-shaped clamping groove to compress and fix the polyester yarn, preventing knotting. The strength test is performed by using a motor to drive the lead screw to rotate.
It enables convenient fixing of polyester filaments, avoids knotting, and improves the convenience and accuracy of testing.
Smart Images

Figure CN224137031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyester filament testing technology, specifically to a device for testing the strength of elastic polyester filament. Background Technology
[0002] Polyester yarn is resistant to chemicals and frequent washing, reducing fading and discoloration in clothing. Therefore, it's used in hotel uniforms, stonewashed denim, sportswear, and children's clothing. Relatively speaking, polyester yarn is more durable than rayon. During embroidery, the high-speed operation of the machine allows the high-tenacity polyester thread to withstand significant tension; moreover, it has extremely high fire resistance; even when the garment is near a flame, it is not easily ignited. A strength testing device is used to conveniently and quickly assess the strength of polyester yarn.
[0003] When testing the strength of polyester yarn, the common method is to fix both ends of the polyester yarn and test its strength by stretching. However, when fixing the ends of the polyester yarn, it is difficult to separate the polyester yarn by tying knots. When fixing the polyester yarn by clamping, it is easy for the polyester yarn to loosen and detach during the tensile test.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a device for testing the strength of elastic polyester yarn, so as to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A strength testing device for elastic polyester yarn includes a base. A frame 1 and a frame 2 are symmetrically arranged on the top of the base. A horizontally arranged crossbeam is located on the top of each frame 1 and frame 2. A connecting column is located at the bottom of each crossbeam. A fixing seat 1 is located at the bottom of each connecting column. A movable block is located between the frame 1 and frame 2. A strength testing sensor, coaxially arranged with the connecting column, is mounted on the movable block. A fixing seat 2 is located on the top of the strength testing sensor. Both the fixing seat 2 and the fixing seat 1 have fixing mechanisms for clamping and fixing the elastic polyester yarn. A through hole is opened on one side of both the fixing seat 2 and the fixing seat 1.
[0008] Preferably, the fixing mechanism includes a connecting side plate located within the through hole, a fixing block is provided at one end of the connecting side plate, and a movable block is provided on one side of the fixing block that is slidably connected to the connecting side plate.
[0009] Preferably, the movable block is provided with a limiting slider on its side, and the connecting side plate is provided with a limiting groove for the limiting slider to slide.
[0010] Preferably, one side of the connecting side plate is provided with a hydraulic cylinder for pushing the movable block to move, and the movable block has symmetrically arranged V-shaped clamping grooves on the side near the fixed block.
[0011] Preferably, the fixed block has a V-shaped clamping block adapted to the V-shaped clamping groove on the side near the movable block, and both the V-shaped clamping groove and the V-shaped clamping block are provided with rubber pads.
[0012] Preferably, both sides of the movable block are provided with connecting blocks extending into the first frame and the second frame, and the first frame and the second frame are provided with lead screws that pass through the two sets of connecting blocks respectively.
[0013] Preferably, the top of the first frame and the second frame are provided with motors for driving the lead screw to rotate, and the connecting block is provided with threaded holes that match the lead screw.
[0014] The beneficial effects of this utility model are as follows: By setting up a fixing mechanism, both ends of the polyester yarn can be fixed on the second fixing seat and the first fixing seat respectively. The hydraulic cylinder controls the movable block to move towards the fixed block, so that the V-shaped clamping block aligns with the V-shaped clamping groove and squeezes the polyester yarn into the V-shaped clamping groove, thereby squeezing and fixing the polyester yarn. There is no need for personnel to tie the polyester yarn into knots, making the operation more convenient and effectively avoiding the dead knot phenomenon caused by tying the polyester yarn. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of an elastic polyester yarn strength testing device according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the fixing mechanism in an elastic polyester yarn strength testing device according to an embodiment of the present utility model;
[0018] Figure 3 This is a rear view of the connecting side plate in an elastic polyester yarn strength testing device according to an embodiment of the present utility model;
[0019] Figure 4 This is a side view of the connecting side plate in an elastic polyester yarn strength testing device according to an embodiment of the present utility model.
[0020] In the picture:
[0021] 1. Base; 2. Frame 1; 3. Frame 2; 4. Crossbeam; 5. Connecting column; 6. Fixed seat 1; 7. Moving block; 8. Strength detection sensor; 9. Fixed seat 2; 10. Fixing mechanism; 11. Connecting side plate; 12. Fixed block; 13. Moving block; 14. Limiting slider; 15. Limiting groove; 16. Hydraulic cylinder; 17. V-groove; 18. V-clamping block; 19. Connecting block; 20. Lead screw; 21. Motor. Detailed Implementation
[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0023] According to an embodiment of the present invention, a device for testing the strength of elastic polyester yarn is provided.
[0024] Example 1:
[0025] like Figure 1-4 As shown, the elastic polyester yarn strength testing device according to an embodiment of the present invention includes a base 1. The top of the base 1 is provided with a frame 1 2 and a frame 2 3 symmetrically arranged. The top of the frame 1 2 and the frame 2 3 is provided with a horizontally arranged crossbeam 4. The bottom of the crossbeam 4 is provided with a connecting column 5. The bottom of the connecting column 5 is provided with a fixing seat 1 6. A moving block 7 is provided between the frame 1 2 and the frame 2 3. The moving block 7 is provided with a strength detection sensor 8 coaxially arranged with the connecting column 5. The top of the strength detection sensor 8 is provided with a fixing seat 2 9. The fixing seat 2 9 and the fixing seat 1 6 are respectively provided with a fixing mechanism 10 for clamping and fixing the elastic polyester yarn. A through hole is opened on one side of the fixing seat 2 9 and the fixing seat 1 6.
[0026] Example 2:
[0027] like Figure 1-4As shown, the fixing mechanism 10 includes a connecting side plate 11 located in the through hole. A fixing block 12 is provided at one end of the connecting side plate 11. A movable block 13 is provided on one side of the fixing block 12 and slidably connected to the connecting side plate 11. A limiting slider 14 is provided on the side of the movable block 13. A limiting groove 15 is provided on the connecting side plate 11 for the limiting slider 14 to slide. A hydraulic cylinder 16 is provided on one side of the connecting side plate 11 for pushing the movable block 13 to move. A symmetrically arranged V-shaped clamping groove 17 is opened on the side of the movable block 13 near the fixing block 12.
[0028] Example 3:
[0029] like Figure 1-4 As shown, the fixed block 12 has a V-shaped clamping block 18 that matches the V-shaped clamping groove 17 on one side near the movable block 13. Both the V-shaped clamping groove 17 and the V-shaped clamping block 18 are provided with rubber pads. Both sides of the movable block 7 are provided with connecting blocks 19 that extend into the frame 1 2 and the frame 2 3. The frame 1 2 and the frame 2 3 are provided with lead screws 20 that pass through the two sets of connecting blocks 19 respectively. The top of the frame 1 2 and the frame 2 3 is provided with a motor 21 for driving the lead screws 20 to rotate. The connecting block 19 is provided with a threaded hole that matches the lead screw 20.
[0030] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0031] In practical applications, the two ends of the polyester filament are first placed on the two through holes respectively. The hydraulic cylinder 16 is started to push the movable block 13 to move towards the fixed block 12 under the guidance of the limit slider 14 until the V-shaped clamp 18 is connected with the V-shaped clamp groove 17, squeezing the polyester filament into the V-shaped clamp groove, thereby squeezing and fixing the polyester filament. Then, the motor 21 is started to drive the lead screw 20 to rotate. The connecting block 19 moves up and down with the forward and reverse rotation of the lead screw 20. When the connecting block 19 moves down, it drives the movable block 7 to move down synchronously. This allows the fixed seat 2 9 to pull the polyester filament system. Then, the strength of the polyester filament can be quickly and effectively detected by the installed strength detection sensor 8.
[0032] In summary, by means of the above-mentioned technical solution of this utility model, the two ends of the polyester yarn can be fixed on the second fixing seat 9 and the first fixing seat 6 respectively by the setting of the fixing mechanism 10. The hydraulic cylinder 16 controls the movable block 13 to move towards the fixing block 12, so that the V-shaped clamping block 18 connects with the V-shaped clamping groove 17 and squeezes the polyester yarn into the V-shaped clamping groove, thereby squeezing and fixing the polyester yarn. There is no need for personnel to tie the polyester yarn, making the operation more convenient and effectively avoiding the dead knot phenomenon caused by tying the polyester yarn.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for testing the strength of elastic polyester yarn, characterized in that, The base (1) includes a base (1), and the top of the base (1) is provided with a frame one (2) and a frame two (3) arranged symmetrically. The top of the frame one (2) and the frame two (3) is provided with a horizontally arranged crossbeam (4). The bottom of the crossbeam (4) is provided with a connecting column (5). The bottom of the connecting column (5) is provided with a fixed seat one (6). A moving block (7) is provided between the frame one (2) and the frame two (3). The moving block (7) is provided with a strength detection sensor (8) arranged coaxially with the connecting column (5). The top of the strength detection sensor (8) is provided with a fixed seat two (9). The fixed seat two (9) and the fixed seat one (6) are respectively provided with a fixing mechanism (10) for clamping and fixing the elastic polyester yarn. A through hole is opened on one side of the fixed seat two (9) and the fixed seat one (6).
2. The device for detecting the strength of an elastic polyester yarn according to claim 1, wherein The fixing mechanism (10) includes a connecting side plate (11) located in the through hole. A fixing block (12) is provided at one end of the connecting side plate (11), and a movable block (13) is provided on one side of the fixing block (12) and is slidably connected to the connecting side plate (11).
3. The device for detecting the strength of an elastic polyester yarn according to claim 2, wherein The movable block (13) is provided with a limiting slider (14) on its side, and the connecting side plate (11) is provided with a limiting groove (15) for the limiting slider (14) to slide.
4. The elastic polyester filament strength testing device according to claim 3, characterized in that, One side of the connecting side plate (11) is provided with a hydraulic cylinder (16) for pushing the movable block (13) to move, and the movable block (13) is provided with symmetrically arranged V-shaped clamping grooves (17) on the side near the fixed block (12).
5. The device for detecting the strength of an elastic polyester yarn according to claim 4, wherein The fixed block (12) has a V-shaped clamping block (18) adapted to the V-shaped clamping groove (17) on one side near the movable block (13). Both the V-shaped clamping groove (17) and the V-shaped clamping block (18) are provided with rubber pads.
6. The device for detecting the strength of an elastic polyester yarn according to claim 1, wherein Both sides of the movable block (7) are provided with connecting blocks (19) extending into the first frame (2) and the second frame (3), and the first frame (2) and the second frame (3) are provided with lead screws (20) that pass through the two sets of connecting blocks (19).
7. The device for detecting the strength of an elastic polyester yarn according to claim 6, wherein The top of the first frame (2) and the second frame (3) are provided with a motor (21) for driving the lead screw (20) to rotate, and the connecting block (19) is provided with a threaded hole that matches the lead screw (20).