A yarn gripper for textile equipment

Abstract

This application relates to a yarn clamp for textile equipment, specifically a yarn clamp in the technical field of yarn clamps. It includes a housing with a circular tubular structure; a bobbin shaft inserted into the housing and sliding along the axial direction of the housing; multiple yarn-holding teeth, each fixedly connected to the top of the outer circumferential wall of the bobbin shaft, and equidistantly distributed along the circumferential direction of the bobbin shaft; the yarn-holding teeth abut against the housing to clamp the yarn; a yarn-holding groove is formed at the center of each yarn-holding tooth along its length; a blade is coaxially positioned on the upper surface of the bobbin shaft, with its cutting teeth located between two yarn-holding teeth and within the yarn-holding groove; the blade is used to cut the yarn; a retaining spring is inserted into the bobbin shaft to fix the blade and the bobbin shaft; yarn guards are connected to the upper surface of the yarn-holding teeth, located on both sides of the yarn-holding groove; the yarn guards prevent the rotating blade from cutting the yarn. This application improves the stability of product production.

Description

Technical Field

[0001] This application relates to the technical field of yarn clamps, and in particular to a yarn clamp for textile equipment. Background Technology

[0002] When the spinning machine is working, the rotation of the spindle drives the yarn clamp to rotate at high speed. Under the influence of different speeds, the yarn clamp opens and closes, so as to achieve the effect of clamping or releasing the yarn.

[0003] Existing yarn clamps use springs as the clamping element for holding yarn. Multiple ball-shaped unloading elements are incorporated within the clamp, which, under centrifugal force, move radially and compress an inclined guide surface on the clamp's outer shell. The compressed guide surface slides, causing the clamping element to move axially, opening or closing. When the spindle is rotating, the centrifugal force on the balls changes with the spindle's rotation speed. As the rotation speed increases, the unloading force generated by the centrifugal force exceeds the loading force of the spring, causing the clamp to open. When the spindle brakes, the rotation speed decreases, and the centrifugal force on the balls becomes less than the loading force of the spring, causing the clamp to close. During the tube pulling process, the clamp's blades cut the yarn on the tube, preventing the remaining yarn from being pulled out.

[0004] Regarding the aforementioned technologies, when the yarn clamp is not fully clamped, the yarn may be cut by the blade due to the stop of the mandrel's teeth and the friction generated by the yarn winding around the mandrel, causing the yarn to break prematurely and the remaining yarn to detach from the yarn clamp; this results in a defect of weak production stability. Summary of the Invention

[0005] To address the issue of poor production stability, this application provides a yarn clamp for textile equipment.

[0006] This application provides a yarn clamp for textile equipment, employing the following technical solution: It includes: a housing, a circular tubular structure; a bobbin shaft, inserted into the housing and sliding along the axial direction of the housing; multiple yarn-holding teeth, each fixedly connected to the top of the outer circumferential wall of the bobbin shaft, and equidistantly distributed along the circumferential direction of the bobbin shaft; the yarn-holding teeth abut against the housing to clamp the yarn; a yarn-holding groove is formed at the center of each yarn-holding tooth along its length direction; a blade, coaxially placed on the upper surface of the bobbin shaft, with its cutting teeth located between two yarn-holding teeth and within the yarn-holding groove; the blade is used to cut the yarn; a retaining spring, inserted into the bobbin shaft to fix the blade and the bobbin shaft; and yarn-protecting components connected to the upper surface of the yarn-holding teeth, located on both sides of the yarn-holding groove; the yarn-protecting components prevent the rotating blade from cutting the yarn.

[0007] By adopting the above technical solution, when the housing and the bobbin spindle rotate rapidly, the yarn-holding teeth separate from the housing. As the rotation speed of the housing and the bobbin spindle decreases, the yarn is placed between the yarn-holding teeth and the housing under the action of the yarn-holding groove. At the same time, under the action of the yarn-guarding component, the yarn does not contact the blade. When the bobbin spindle stops rotating, the yarn contacts the yarn-holding groove. This solves the problem that when the yarn clamp is not fully clamped, but under the stop of the bobbin spindle's hanging teeth and the friction generated by the yarn winding around the bobbin spindle, the yarn may contact the blade and cut the yarn, causing the yarn to break prematurely and the remaining yarn to detach from the yarn clamp. This achieves the effect of improving production stability.

[0008] Preferably, a protrusion is fixedly connected to the upper surface of the housing, and the protrusion is located between two adjacent wire-hanging teeth; the protrusion is located below the blade, and the length direction of the protrusion is the same as the radial direction of the core shaft; the cross-sectional area of ​​the protrusion gradually decreases from bottom to top.

[0009] By adopting the above technical solution, the protrusion is located between two adjacent thread-holding teeth. When the thread-holding teeth move towards the side closer to the housing but do not contact the housing, the protrusion is inserted between the adjacent thread-holding teeth. At this time, the friction between the yarn and the housing between the thread-holding teeth and the housing increases, thereby improving the convenience of thread hanging and the stability of clamping the yarn clamp.

[0010] Preferably, a relief groove is provided on the upper surface of the mandrel, and the blade is located in the relief groove.

[0011] By adopting the above technical solution, due to the small thickness and high rigidity of the blade, and the fact that the blade is located in the relief groove, the relief groove can stop the blade when it breaks due to fatigue or external impact, thus improving safety.

[0012] Preferably, the wire protection component includes a wire protection rod, a counterweight, and a return spring; the wire protection rod has an arc-shaped rod structure, and one end of the wire protection rod is hinged to the wire hanging teeth, with the convex surface of the wire protection rod close to the axis of the core shaft; the counterweight is fixedly connected to the remaining end of the wire protection rod and is located on the side of the wire protection rod close to the axis of the core shaft; one end of the return spring is fixedly connected to the wire hanging teeth, and the remaining end is fixedly connected to the wire protection rod.

[0013] By adopting the above technical solution, as the bobbin rotates, the counterweight drives the yarn guard rods to rotate under the action of centrifugal force. At this time, multiple yarn guard rods block the blade teeth, preventing the yarn from directly contacting the blades. This prevents the yarn clamp from not fully clamping the yarn, but the yarn may still contact the blades and be cut by the blades due to the stop of the bobbin's teeth and the friction generated by the yarn winding around the bobbin. This improves production stability. At the same time, when the bobbin stops rotating, the centrifugal force of the counterweight disappears. At this time, under the action of the return spring, the yarn contacts the blades and is cut. This achieves the effect of automatically protecting the yarn according to the rotation speed of the bobbin to improve its integrity.

[0014] Preferably, the upper surface of the wire-hanging tooth is provided with a receiving groove, which is located on both sides of the wire-hanging groove; one end of the receiving groove is close to the axis of the core shaft, and the other end is away from the axis of the core shaft; and the end of the receiving groove close to the axis of the core shaft is close to the hinge point between the wire guard rod and the wire-hanging tooth; a slowing ball is embedded in the receiving groove, and the slowing ball slides along the opening direction of the receiving groove; the slowing ball abuts against the wire guard rod.

[0015] By adopting the above technical solution, when the core shaft rotates, the slowing ball pushes the wire guard rod under the action of centrifugal force; when the rotation speed of the core shaft decreases, when the centrifugal force and the tension of the return spring are in balance, the slowing ball reduces the return speed of the wire guard rod until the core shaft stops rotating completely, and the wire hanging teeth and the housing completely clamp the yarn; thus improving the protective effect of the wire guard.

[0016] Preferably, the depth of the receiving groove gradually increases from the end closest to the axis of the mandrel to the end furthest from the axis of the mandrel.

[0017] By adopting the above technical solution, it is easier for the slow-moving ball to push the line guard rod, thereby increasing the reset time of the line guard rod, improving the protective effect of the line guard on the yarn, and improving production stability.

[0018] Preferably, it further includes a clamping spring, a spring seat, a steel ball, a retaining ring, and a cap; a spring receiving groove is provided on the inner wall of the housing, the clamping spring is located in the spring receiving groove and is sleeved on the outer wall of the cylindrical core shaft; the clamping spring is used to drive the hanging teeth to abut against the housing; a spring seat receiving groove is provided on the inner wall of the housing, the spring seat receiving groove is connected to the spring receiving groove, the spring seat is located in the spring seat receiving groove, and the spring seat is used to support the clamping spring; a hemispherical groove is provided on the lower surface of the spring seat; the hemispherical groove passes through the spring seat radially along the spring seat; multiple hemispherical grooves are provided, and the multiple hemispherical grooves are equidistantly distributed along the circumference of the spring seat; the steel ball is located in the hemispherical groove; the retaining ring is sleeved on the outer wall of the cylindrical core shaft and engages with the cylindrical core shaft, slides along the length of the housing and abuts against the steel ball; the cap is inserted into the housing and connected to the housing, the side wall of the cap abutting against the steel ball is a guide surface, and the guide surface gradually tilts from the bottom end to the top end of the cap towards the side away from the axis of the cap.

[0019] By adopting the above technical solution, as the shell rotates rapidly, the steel ball abuts against the guide surface under the action of centrifugal force, and under the action of the guide surface, pushes the shell to move downward along the length of the bobbin shaft; at the same time, the clamping spring is compressed under the action of the spring seat; as the rotation speed of the bobbin shaft gradually decreases, under the action of the clamping spring, the shell gradually moves towards the side closer to the yarn hanging teeth, thereby achieving the clamping of the yarn.

[0020] Preferably, a snap-fit ​​strip is provided between the cap and the housing, and the snap-fit ​​strip is fixedly connected to the cap; the housing has a snap-fit ​​groove; the snap-fit ​​strip is inserted into the snap-fit ​​groove.

[0021] By adopting the above technical solution, the snap-fit ​​strip makes it easier for workers to separate the cover from the housing, thereby facilitating the cleaning of lint from the wire clamp during the production process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. As the bobbin spindle rotates, the counterweight, under centrifugal force, drives the yarn guard rods to rotate. At this time, multiple yarn guard rods shield the blade teeth, preventing direct contact between the yarn and the blades. This prevents situations where the yarn clamp is not fully clamped, but the yarn still contacts the blades due to the stop of the bobbin spindle's teeth and the friction generated by the yarn winding around the bobbin spindle, potentially resulting in the blades cutting the yarn. This improves production stability. Simultaneously, when the bobbin spindle stops rotating, the centrifugal force of the counterweight disappears. At this point, under the action of the return spring, the yarn contacts the blades, thus cutting the yarn. This achieves the effect of automatically protecting the yarn based on the bobbin spindle's rotation speed to improve its integrity.

[0024] 2. When the mandrel rotates, the slowing ball pushes the thread guard rod under the action of centrifugal force; when the rotation speed of the mandrel decreases, the centrifugal force and the tension of the return spring counteract each other, and the slowing ball reduces the return speed of the thread guard rod until the mandrel stops rotating completely, and the thread-holding teeth and the housing completely clamp the yarn; thus improving the protective effect of the thread guard.

[0025] 3. As the shell rotates rapidly, the steel ball abuts against the guide surface under the action of centrifugal force, and under the action of the guide surface, pushes the shell to move downward along the length of the bobbin shaft; at the same time, the clamping spring is compressed under the action of the spring seat; as the rotation speed of the bobbin shaft gradually decreases, under the action of the clamping spring, the shell gradually moves towards the side closer to the yarn hanging teeth, thereby achieving the clamping of the yarn. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 This is a sectional view showing the mandrel;

[0028] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0029] Figure 4 yes Figure 2 A magnified view of part B in the middle section;

[0030] Figure 5 This is a top view showing some parts of the wire guard.

[0031] In the diagram, 1. Housing; 11. Spring receiving groove; 12. Spring seat receiving groove; 13. Snap-fit ​​groove; 14. Protrusion; 2. Core shaft; 21. Hanging tooth; 211. Hanging groove; 212. Receiving groove; 22. Snap ring; 23. Relief groove; 3. Blade; 4. Wire protection component; 41. Wire protection rod; 42. Counterweight; 43. Return spring; 5. Slow ball; 6. Clamping spring; 61. Spring seat body; 611. Hemispherical groove; 7. Steel ball; 8. Retaining ring; 9. Cover; 91. Snap-fit ​​strip; 10. Guide surface. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0033] This application discloses a yarn clamp for textile equipment.

[0034] refer to Figure 1 and Figure 2 The yarn clamp for textile equipment includes a housing 1, a bobbin 2, yarn-holding teeth 21, a blade 3, and a retaining spring 22. The housing 1 is a circular tubular structure. The bobbin 2 is inserted into the housing 1 and slides along the axial direction of the housing 1. Multiple yarn-holding teeth 21 are provided, and each yarn-holding tooth 21 is fixedly connected to the top of the outer circumferential wall of the bobbin 2. The yarn-holding teeth 21 are evenly distributed along the circumference of the bobbin 2. The yarn-holding teeth 21 are used to abut against the housing 1 to clamp the yarn. A yarn-holding groove 211 is provided at the center of the yarn-holding teeth 21 along its length direction. The blade 3 is placed on the upper surface of the bobbin 2.

[0035] refer to Figure 2 and Figure 3 Specifically, a relief groove 23 is provided on the upper surface of the bobbin 2 and the upper surface of the thread-holding teeth 21, and the blade 3 is located in the relief groove 23; the cutting teeth of the blade 3 are located between the two thread-holding teeth 21 and in the thread-holding groove 211, and the blade 3 is used to cut the yarn. The blade 3 is connected to the bobbin 2, and specifically, the retaining ring 22 is inserted into the bobbin 2 and used to fix the blade 3 and the bobbin 2.

[0036] refer to Figure 1 A protrusion 14 is fixedly connected to the upper surface of the housing 1. The protrusion 14 is located between two adjacent hanging teeth 21. The protrusion 14 is located below the blade 3, and the length direction of the protrusion 14 is the same as the radial direction of the core shaft 2. The cross-sectional area of ​​the protrusion 14 gradually decreases from bottom to top.

[0037] refer to Figure 2 and Figure 4The yarn clamping device for textile equipment also includes a clamping spring 6, a spring seat 61, a steel ball 7, a retaining ring 8, and a cover 9; a spring receiving groove 11 is provided on the inner wall of the housing 1; the clamping spring 6 is located in the spring receiving groove 11 and is sleeved on the outer wall of the bobbin 2; the clamping spring 6 is used to drive the yarn hanging teeth 21 to abut against the housing 1; specifically, a spring seat receiving groove 12 is provided on the inner wall of the housing 1, the spring seat receiving groove 12 is connected to the spring receiving groove 11, the spring seat 61 is located in the spring seat receiving groove 12, and the spring seat 61 is used to support the clamping spring 6; the top end of the clamping spring 6 abuts against the housing 1, and the bottom end of the clamping spring 6 abuts against the supporting seat.

[0038] refer to Figure 2 and Figure 4 A hemispherical groove 611 is formed on the lower surface of the spring seat 61. The hemispherical groove 611 extends radially through the spring seat 61. Multiple hemispherical grooves 611 are formed and are equidistantly distributed circumferentially along the spring seat 61. The steel ball 7 is partially located inside the hemispherical groove 611. The retaining ring 8 is sleeved on the outer circumferential wall of the cylindrical core shaft 2 and is engaged with the cylindrical core shaft 2. It slides along the length of the housing 1 and abuts against the steel ball 7.

[0039] refer to Figure 2 and Figure 4 The cover 9 is inserted into and connected to the housing 1. Specifically, a snap-fit ​​strip 91 is provided between the cover 9 and the housing 1, and the snap-fit ​​strip 91 is fixedly connected to the cover 9. The housing 1 has a snap-fit ​​groove 13, and the snap-fit ​​strip 91 is inserted into the snap-fit ​​groove 13. The side wall where the cover 9 abuts against the steel ball 7 is a guide surface 10. The guide surface 10 gradually slopes away from the axis of the cover 9 from the bottom end to the top end. That is, the guide surface 10 gradually slopes towards the outer wall of the cover 9 from the bottom end to the top end.

[0040] In operation, the spindle drives the core shaft 2 to rotate, which in turn drives the housing 1 to rotate. As the housing 1 rotates at high speed, under centrifugal force, the steel ball 7 slides along the axial direction of the spring seat 61 within the hemispherical groove 611 and abuts against the guide surface 10. Guided by the steel ball 7 and the guide surface 10, the thread-holding teeth 21 separate from the upper surface of the housing 1. Simultaneously, the clamping spring 6 is compressed under the pushing action of the steel ball 7. When clamping the yarn, the yarn hooks between two adjacent thread-holding teeth 21 or into the thread-holding groove 211. At the same time, the core shaft 2 slows down, and the clamping spring 6 drives the cylinder to return to its original position. The thread-holding teeth 21 move towards the side closer to the cylinder. When the yarn has not completed one full turn around the core shaft 2, the thread-holding teeth 21 abut against the upper surface of the cylinder, thus clamping the yarn. As the wound yarn moves upward, it abuts against the blade 3, which cuts the yarn under the action of the blade teeth. This achieves the effect of automatically clamping the yarn based on the rotational speed of the core shaft 2.

[0041] refer to Figure 1 and Figure 5A wire guard 4 is connected to the upper surface of the wire hanging tooth 21. The wire guard 4 is located on both sides of the wire hanging groove 211, that is, the wire guard 4 is connected to both sides of the wire hanging groove 211 of the same wire hanging tooth 21. The wire guard 4 is used to stop the rotating blade 3 from cutting the yarn. The wire guard 4 includes a wire guard rod 41, a counterweight 42 and a return spring 43. The wire guard rod 41 is an arc-shaped rod structure, and one end of the wire guard rod 41 is hinged to the wire hanging tooth 21. The rotation axis of the wire guard rod 41 is parallel to the rotation axis of the core shaft 2. The convex surface of the wire guard rod 41 is close to the axis of the core shaft 2. The counterweight 42 is fixedly connected to the remaining end of the wire guard rod 41 and is located on the side of the wire guard rod 41 close to the core shaft 2. One end of the return spring 43 is fixedly connected to the wire hanging tooth 21, and the remaining end is fixedly connected to the wire guard rod 41.

[0042] refer to Figure 5 The upper surface of the hanging tooth 21 is provided with a receiving groove 212, which is located on both sides of the hanging groove 211. One end of the receiving groove 212 is close to the circumference of the core shaft 2, and the other end is away from the axis of the core shaft 2. The end of the receiving groove 212 close to the axis of the core shaft 2 is close to the hinge point between the wire guard rod 41 and the hanging tooth 21. The depth of the receiving groove 212 gradually increases from the end close to the axis of the core shaft 2 to the end away from the axis of the core shaft 2. A slow ball 5 is embedded in the receiving groove 212. The slow ball 5 slides along the opening direction of the receiving groove 212 and abuts against the wire guard rod 41.

[0043] In use, the mandrel 2 rotates. Under the action of the counterweight 42, the centrifugal force of the counterweight 42 drives the guard rod 41 to rotate. At this time, the guard rod 41 overcomes the tension of the return spring 43 and aligns its concave surface with the rotation axis of the mandrel 2. The guard rod 41 then effectively blocks the blade teeth of the blade 3. The yarn is hooked between the two hooking teeth 21 or in the hooking groove 211, but when the hooking teeth 21 and the housing 1 do not clamp the yarn, the yarn is stopped away from the blade 3 by the guard rod 41. Simultaneously, the slowing ball 5 pushes the guard rod 41 under centrifugal force. When the rotation speed of the mandrel 2 decreases, the centrifugal force counteracts the tension of the return spring, and the slowing ball 5 reduces the return speed of the guard rod 41 until the mandrel 2 completely stops rotating, and the hooking teeth 21 and the housing 1 completely clamp the yarn, thus improving the protective effect of the guard 4. The varying depths of the receiving grooves 212 facilitate the centrifugal movement of the slowing ball 5, which in turn facilitates the slowing ball 5 pushing the thread guard rod 41. Simultaneously, the reduction of the reset spring 43's movement causes the thread guard rod 41 to reset, thereby increasing the reset time of the thread guard rod 41 and improving the protective effect of the thread guard 4 on the yarn, thus enhancing production stability. This achieves the effect of automatically protecting the yarn based on the rotational speed of the bobbin 2, thereby improving its integrity.

[0044] The implementation principle of a yarn clamp for textile equipment according to an embodiment of this application is as follows: The spindle drives the bobbin shaft 2 to rotate, and the bobbin shaft 2 drives the housing 1 to rotate. When the housing 1 rotates at high speed, under the action of centrifugal force, the steel ball 7 slides along the axial direction of the spring seat 61 in the hemispherical groove 611 and abuts against the guide surface 10. Under the guidance of the steel ball 7 and the guide surface 10, the yarn-hanging teeth 21 are driven to separate from the upper surface of the housing 1. At the same time, the clamping spring 6 is compressed under the pushing action of the steel ball 7. When clamping yarn, the yarn is hooked between two adjacent yarn-hanging teeth 21 or hooked into the yarn-hanging groove 211. At the same time, under the action of the counterweight 42, the thread guard rod 41 blocks the blade teeth of the blade 3 to prevent the blade 3 from contacting the yarn. As the rotation speed of the bobbin shaft 2 slows down, the clamping spring 6 drives the bobbin to return to its original position, and the yarn-hanging teeth 21 move to the side closer to the bobbin. When the yarn has wound less than one revolution around the bobbin 2, the yarn-holding teeth 21 abut against the upper surface of the bobbin, thereby clamping the yarn; at the same time, under the action of the return spring 43, the yarn-guarding rod 41 returns to its original position. As the wound yarn moves upward, the yarn abuts against the blade 3 and is cut by the blade teeth. This achieves the effect of automatically clamping the yarn according to the rotation speed of the bobbin 2.

[0045] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A thread gripper for textile equipment, characterized in that: Include: The shell (1) is a circular tubular structure; The cylinder core shaft (2) is inserted into the shell (1) and slides along the axial direction of the shell (1); The hanging wire tooth (21) is provided with a plurality of hanging wire teeth (21), and the plurality of hanging wire teeth (21) are fixedly connected to the top of the circumferential outer wall of the cylinder core shaft (2), and the hanging wire tooth (21) is equidistantly distributed along the circumferential direction of the cylinder core shaft (2); the hanging wire tooth (21) is used for abutting the shell (1) to clamp the yarn; the hanging wire tooth (21) is provided with a hanging wire groove (211) at the central position along the length direction thereof; The blade (3) is coaxially arranged on the upper surface of the cylinder core shaft (2), the blade teeth of the blade (3) are located between the two hanging wire teeth (21) and in the hanging wire groove (211); the blade (3) is used for cutting the yarn; The clamping spring (22) is inserted into the cylinder core shaft (2) for fixing the blade (3) and the cylinder core shaft (2); The upper surface of the hanging wire tooth (21) is connected with the wire protection piece (4), and the wire protection piece (4) is located on both sides of the hanging wire groove (211); the wire protection piece (4) is used for stopping the rotating blade (3) to cut the yarn; The wire protection piece (4) includes a wire protection rod (41), a counterweight block (42) and a reset tension spring (43); The wire protection rod (41) is an arc-shaped rod structure, one end of the wire protection rod (41) is hinged to the hanging wire tooth (21), and the convex surface of the wire protection rod (41) is close to the axis of the cylinder core shaft (2); the counterweight block (42) is fixedly connected to the remaining one end of the wire protection rod (41), and the counterweight block (42) is located on the side of the wire protection rod (41) close to the axis of the cylinder core shaft (2); one end of the reset tension spring (43) is fixedly connected to the hanging wire tooth (21), and the remaining one end is fixedly connected to the wire protection rod (41).

2. A thread clearer for textile machinery according to claim 1, characterized in that: The upper surface of the shell (1) is fixedly connected with a protrusion (14), and the protrusion (14) is located between the two adjacent hanging wire teeth (21); the protrusion (14) is located below the blade (3), and the length direction of the protrusion (14) is the same as the radial direction of the cylinder core shaft (2); the cross-sectional area of the protrusion (14) gradually decreases from bottom to top.

3. A thread clearer for textile machinery according to claim 1, characterized in that: The upper surface of the cylinder core shaft (2) is provided with a let-out groove (23), and the blade (3) is located in the let-out groove (23).

4. A thread clearer for textile machinery according to claim 1, characterized in that: The upper surface of the hanging wire tooth (21) is provided with a containing groove (212), and the containing groove (212) is located on both sides of the hanging wire groove (211); one end of the containing groove (212) is close to the axis of the cylinder core shaft (2), and the remaining one end is away from the axis of the cylinder core shaft (2); and the end of the containing groove (212) close to the axis of the cylinder core shaft (2) is close to the hinge point of the wire protection rod (41) and the hanging wire tooth (21); a buffer ball (5) is embedded in the containing groove (212), and the buffer ball (5) slides along the containing groove (212) in the direction in which the containing groove (212) is provided; the buffer ball (5) abuts the wire protection rod (41). The containing groove (212) gradually increases in groove depth from the end close to the axis of the cylinder core shaft (2) to the end away from the axis of the cylinder core shaft (2).

5. A thread clearer for textile machinery according to claim 4, characterized in that: ​ 6. A thread detector for textile machinery according to claim 1, characterized in that: Also include clamping spring (6), spring seat body (61), steel ball (7), check ring (8) and cover (9); The inner wall of shell (1) is provided with spring containing groove (11), clamping spring (6) is located in spring containing groove (11), and is sleeved on the circumferential outer wall of barrel core shaft (2);Clamping spring (6) is used to drive hanging line tooth (21) to resist tightly shell (1); The inner wall of shell (1) is provided with spring seat containing groove (12), and spring seat containing groove (12) is communicated with spring containing groove (11), spring seat body (61) is located in spring seat containing groove (12), and spring seat body (61) is used to bear clamping spring (6);The lower surface of spring seat body (61) is provided with semisphere groove (611);Semisphere groove (611) penetrates spring seat along the radial direction of spring seat body (61);Semisphere groove (611) is provided with multiple, and multiple semisphere grooves (611) are equidistantly distributed along the circumferential direction of spring seat body (61); Steel ball (7) is partially located in semisphere groove (611); Check ring (8) is sleeved on the circumferential outer wall of barrel core shaft (2) and is connected with barrel core shaft (2), slides along the length direction of shell (1) and abuts against steel ball (7); Cover (9) is inserted into shell (1) and is connected with shell (1), the side wall of cover (9) abutting against steel ball (7) is guide surface (10), and guide surface (10) is gradually inclined to the side away from the axis of cover (9) from the bottom end to the top end of cover (9).

7. A thread catcher according to claim 6, characterized in that: The cover (9) and shell (1) are provided with clamping strip (91), and the clamping strip (91) is fixedly connected with the cover (9);Shell (1) is provided with clamping groove (13);Clamping strip (91) is inserted into clamping groove (13).

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