Yarn buffer stretching type single yarn strength tester capable of improving measurement precision
By increasing the contact area between the yarn and the clamping device and eliminating gaps, the virtual stretching problem caused by unstable clamping of the single yarn power machine is solved, and high-precision yarn tensile testing is achieved.
Patent Information
- Application Number
- CN202521272884.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-20
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2035-06-20
AI Technical Summary
When clamping yarns, the existing single yarn power machines have insufficient contact area and gaps, resulting in yarn slack and empty position in the fixture, resulting in a decrease in tensile test accuracy.
The pre-tightening working module is adopted to drive the movable ring member to rotate through the servo motor drive transmission gear meshing, and the sliding rod moves the clamping firmware simultaneously, increasing the contact area between the yarn and the clamping device and eliminating gaps. At the same time, the yarn is pre-tightened by the electric telescopic rod and the general motor to ensure stable clamping.
It improves the accuracy and reliability of yarn tensile testing, avoids dummy stretching, and ensures that the yarn maintains a high and stable clamping state without dummy during testing.
Smart Images
Figure CN223217254U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of single yarn strength machines, in particular to a yarn buffering and stretching single yarn strength machine with improved measurement accuracy. Background Art
[0002] The fully automatic single yarn strength tester is a special testing equipment for the textile industry. It is mainly used to automatically measure the core performance indicators of a single yarn, such as breaking strength and breaking elongation. Its main functions include automatic clamping, precise force application, data collection and statistics, and support for printing test results.
[0003] In the existing technology, when a single yarn strength machine clamps the yarn, it is easy to have insufficient contact area and gaps between the yarn and the clamp, which will cause unstable initial clamping. Furthermore, due to the relaxation of the yarn itself and the tiny virtual position in the clamp, virtual tensile displacement is generated at the initial stage of the tensile test, which reduces the accuracy of the yarn test data. Utility Model Content
[0004] The utility model discloses a yarn buffer stretching single yarn strength tester with improved measurement accuracy, which aims to solve the technical problem that when the yarn is clamped, the contact area between the yarn and the clamp is insufficient and there is a gap, and then due to the relaxation of the yarn itself and the tiny virtual position in the clamp, virtual stretching occurs at the initial stage of the tensile test.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a yarn buffer stretching single yarn strength machine with improved measurement accuracy, comprising a base; a main body, the main body is fixedly connected to one side of the top of the base; a pre-tightening operation module, the pre-tightening operation module is arranged on one side of the main body, and the pre-tightening operation module comprises a mounting plate frame, the mounting plate frame is fixed to the upper side of the main body, a rotating hole is opened on the mounting plate frame, a rotating frame is rotatably connected in the rotating hole, a clamping wheel is fixedly connected to the middle of the outer side of the rotating frame, and the circumference of the clamping wheel is equidistant. A plurality of clamping slots are provided, and a plurality of sliding holes are provided at equal intervals on the circumference of the rotating frame, a plurality of sliding holes are slidably connected to sliding blocks, and one side of the plurality of sliding blocks is fixedly connected to a clamping piece, the pre-tightening operation module also includes a movable ring, the movable ring is movably connected to a side of the rotating frame away from the clamping wheel, and a plurality of sliding slots are provided at equal intervals on the circumference of the movable ring, a plurality of sliding slots are slidably connected to sliding rods, the plurality of sliding rods are fixedly connected to the corresponding sliding blocks, the outside of the movable ring is fixedly connected to a transmission gear ring, and the rotating frame The driving member is a chain which has a first end fixedly provided with a base and a second end provided with a linking hole, and the first end of the first chain is connected to the first gear by a threaded connecting strip which is cooperatively connected with the first gear of the driving member.
[0006] The servo motor is started through the control panel to rotate the transmission gear, and the transmission gear and the transmission gear ring are engaged with each other to drive the movable ring to rotate, forcing multiple sliding rods to slide in the corresponding sliding slots at the same time, and the sliding block drives multiple clamping members to move synchronously toward the clamping wheel to clamp the yarn in the clamping slot, thereby increasing the contact area between the yarn and the clamping device while ensuring that there is no gap between the yarn and the clamping device, starting the electric telescopic rod to push the clamping block 2, and clamping the yarn between the clamping block 1 and the clamping block 2. The operation control module starts the universal motor to rotate the transmission wheel, and the rotating frame is driven to rotate by the transmission belt to pre-tighten the yarn; synchronous radial clamping is used to increase the contact area of the yarn and eliminate the gap between the clamping device and the yarn, and the yarn is actively pre-tightened to eliminate loose virtual positions, thereby ensuring that the yarn maintains a highly stable and non-virtual clamping state during testing, avoiding the virtual stretching phenomenon caused by loose fixation, and improving the accuracy and reliability of the yarn tensile test.
[0007] From the above, it can be seen that the utility model provides a yarn buffer stretching single yarn strength machine with improved measurement accuracy. Through the pre-tightening operation module, it uses synchronous radial clamping to increase the yarn contact area and eliminate the gap between the clamping device and the yarn. At the same time, it actively pre-tightens the yarn to eliminate loose virtual positions, which can ensure that the yarn maintains a highly stable, non-virtual clamping state during testing, avoids the virtual stretching phenomenon caused by loose fixation, and improves the accuracy and reliability of the yarn tensile test. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic diagram of the overall structure of a yarn buffer stretching single yarn strength tester with improved measurement accuracy proposed by the utility model;
[0009] Figure 2 This is a schematic diagram of the internal structure of the main body of a yarn buffer stretching single yarn strength tester with improved measurement accuracy proposed by the present invention;
[0010] Figure 3 This is a structural schematic diagram of a pre-tightening module of a yarn buffer stretching single yarn strength machine for improving measurement accuracy proposed by the present invention;
[0011] Figure 4 This is a structural schematic diagram of the movable ring of the pre-tightening module of a yarn buffer stretching single yarn strength machine with improved measurement accuracy proposed by the utility model.
[0012] In the accompanying drawings: 1. Base; 2. Leveling feet; 3. Control panel; 4. Main body; 5. Pre-tightening operation module; 501. Mounting plate frame; 502. Rotating frame; 503. Clamping wheel; 504. Mounting part; 505. Clamping block 1; 506. Electric telescopic rod; 507. Clamping block 2; 508. Clamping slot; 509. Sliding block; 510. Clamping part; 511. Universal motor; 512. Transmission wheel; 513. Transmission belt; 514. Movable ring; 515. Sliding slot; 516. Sliding rod; 517. Transmission gear ring; 518. Servo motor; 519. Transmission gear; 6. Threaded rod; 7. Drive motor; 8. Sliding seat; 9. Lower clamp. DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0014] The utility model discloses a yarn buffer stretching single yarn strength tester with improved measurement accuracy, which is mainly used in scenarios where the contact area between the yarn and the clamp is insufficient and there is a gap when the yarn is clamped, and then due to the relaxation of the yarn itself and the tiny virtual position in the clamp, virtual stretching occurs at the initial stage of the tensile test.
[0015] Reference Figure 1-Figure 4, a yarn buffer stretching single yarn strength machine with improved measurement accuracy, including a base 1; a main body 4, the main body 4 is fixedly connected to one side of the top of the base 1; a pre-tightening operation module 5, the pre-tightening operation module 5 is arranged on one side of the main body 4, the pre-tightening operation module 5 includes a mounting plate 501, the mounting plate 501 is fixed to the upper side of the main body 4, a rotating hole is opened on the mounting plate 501, a rotating frame 502 is rotatably connected in the rotating hole, a clamping wheel 503 is fixedly connected to the middle of the outer side of the rotating frame 502, a plurality of clamping notches 508 are opened on the clamping wheel 503 at equal distances around the circumference, and a plurality of clamping notches 508 are opened on the rotating frame 502 at equal distances around the circumference. There are multiple sliding holes, each of which is slidably connected to a sliding block 509, and one side of each of the sliding blocks 509 is fixedly connected to a clamping member 510. The pre-tightening operation module 5 also includes a movable ring 514, which is movably connected to the side of the rotating frame 502 away from the clamping wheel 503, and a plurality of sliding slots 515 are equidistantly provided on the circumference of the movable ring 514, and a plurality of sliding slots 515 are slidably connected to a sliding rod 516, and a plurality of sliding rods 516 are fixedly connected to the corresponding sliding blocks 509. The outside of the movable ring 514 is fixedly connected to a transmission gear ring 517, and a fixed The servo motor 518 is fixedly connected to the fixing hole, and the output end of the servo motor 518 is fixedly connected to the transmission gear 519, and the transmission gear 519 is meshed with the transmission gear ring 517. A mounting hole is provided on the mounting plate frame 501, and a universal motor 511 is fixedly connected to the mounting hole, and the output end of the universal motor 511 and the outer side of the inner end of the rotating frame 502 are fixedly connected to the transmission wheel 512, and the external transmission of the two transmission wheels 512 is connected with the same transmission belt 513. The side of the mounting plate frame 501 away from the main body 4 is fixedly connected to the mounting piece 504, and the mounting piece 504 is fixedly connected to the clamping block 1 505, and the mounting hole is provided. An installation hole is provided on the mounting part 504, and an electric telescopic rod 506 is fixedly connected in the installation hole. The driving end of the electric telescopic rod 506 is fixedly connected to the clamping block 2 507. A strip groove is vertically provided on the side of the main body 4 near the pre-tightening operation module 5, and a threaded rod 6 is provided in the strip groove. The inside of the main body 4 is fixedly connected to a driving motor 7, and the output end of the driving motor 7 is fixedly connected to the upper end of the threaded rod 6, and the outside of the threaded rod 6 is connected to a sliding seat 8 through a thread, and one side of the sliding seat 8 is fixedly connected to a lower clamp 9, and the other side of the top of the base 1 is fixedly connected to a control panel 3, and the bottom of the base 1 is fixedly connected to a plurality of leveling legs 2.
[0016] Working principle: Before conducting a strength test on the yarn, the base 1 is adjusted to a horizontal state by leveling the support legs 2, the yarn loop is wound around the outside of the clamping wheel 503, and the servo motor 518 is started through the control panel 3 to rotate the transmission gear 519. The transmission gear 519 is engaged with the transmission gear ring 517 to drive the movable ring 514 to rotate, forcing multiple sliding rods 516 to slide in the corresponding sliding slots 515 at the same time, and the multiple clamps 510 are driven by the sliding block 509 to move synchronously toward the clamping wheel 503, clamping the yarn in the clamping slot 508, increasing the contact area between the yarn and the clamping device while ensuring that there is no friction between the yarn and the clamping device. The gap is formed, the electric telescopic rod 506 is started to push the clamping block 2 507, and the yarn is clamped and fixed between the clamping block 1 505 and the clamping block 2 507. The operation control module starts the universal motor 511 to rotate the transmission wheel 512, and drives the rotating frame 502 to rotate through the transmission belt 513 to pre-tighten the yarn, further ensuring the tightness between the yarn and the clamping device, and preventing the yarn from being loosely fixed during the test to produce virtual stretching that affects the test accuracy. After the pre-tightening is completed, the electric telescopic rod 506 retracts, and the lower end of the yarn is fixed by the lower clamp 9. The drive motor 7 is started to rotate the threaded rod 6, and the sliding seat 8 and the lower clamp 9 are driven to move downward. The strength test data is collected after the yarn is tightened.
[0017] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.
Claims
1. A yarn buffer stretching single yarn strength tester with improved measurement accuracy, characterized in that: The invention comprises a base (1); a main body (4), wherein the main body (4) is fixedly connected to one side of the top of the base (1); and a pre-tightening operation module (5), wherein the pre-tightening operation module (5) is arranged on one side of the main body (4), and the pre-tightening operation module (5) comprises a mounting plate frame (501), wherein the mounting plate frame (501) is fixed to the upper side of the main body (4), wherein a rotating hole is provided on the mounting plate frame (501), wherein a rotating frame (502) is rotatably connected in the rotating hole, wherein a clamping wheel member (503) is fixedly connected to the middle part of the outer side surface of the rotating frame (502), wherein a plurality of clamping notches (508) are equidistantly provided on the clamping wheel member (503), and a plurality of sliding holes are equidistantly provided on the rotating frame (502), wherein sliding blocks (509) are slidably connected in the plurality of sliding holes, and wherein one side of the plurality of sliding blocks (509) is fixedly connected to a clamping member (510).
2. A yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 1, characterized in that: The pre-tightening operation module (5) further comprises a movable ring (514), which is movably connected to a side of the rotating frame (502) away from the clamping wheel (503), and a plurality of sliding slots (515) are equidistantly provided on the circumference of the movable ring (514), wherein the plurality of sliding slots (515) are all slidably connected to sliding rods (516), and the plurality of sliding rods (516) are all fixedly connected to corresponding sliding blocks (509).
3. A yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 2, characterized in that: The outside of the movable ring (514) is fixedly connected to a transmission gear ring (517), and a fixing hole is opened on the rotating frame (502), and a servo motor (518) is fixedly connected in the fixing hole. The output end of the servo motor (518) is fixedly connected to a transmission gear (519), and the transmission gear (519) and the transmission gear ring (517) are meshed with each other.
4. A yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 3, characterized in that: The mounting plate frame (501) is provided with a mounting hole, a universal motor (511) is fixedly connected in the mounting hole, and the output end of the universal motor (511) and the outside of the inner end of the rotating frame (502) are both fixedly connected with a transmission wheel (512), and the external transmission of the two transmission wheels (512) is connected with the same transmission belt (513).
5. A yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 4, characterized in that: A mounting member (504) is fixedly connected to a side of the mounting plate frame (501) away from the main body (4), a clamping block 1 (505) is fixedly connected to the mounting member (504), and a placement hole is opened on the mounting member (504), an electric telescopic rod (506) is fixedly connected in the placement hole, and a driving end of the electric telescopic rod (506) is fixedly connected to a clamping block 2 (507).
6. A yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 1, characterized in that: The main body (4) is provided with a strip groove vertically on the side near the pre-tightening operation module (5), and a threaded rod (6) is provided in the strip groove. The interior of the main body (4) is fixedly connected to a driving motor (7), the output end of the driving motor (7) is fixedly connected to the upper end of the threaded rod (6), and the exterior of the threaded rod (6) is connected to a sliding seat (8) through a thread, and a lower clamp (9) is fixedly connected to one side of the sliding seat (8).
7. The yarn buffer stretching single yarn strength tester with improved measurement accuracy according to claim 1, characterized in that: A control panel (3) is fixedly connected to the other side of the top of the base (1), and a plurality of leveling legs (2) are fixedly connected to the bottom of the base (1).