Yarn feeding mechanism for weaving sports protective clothing

Abstract

The invention discloses a yarn feeding mechanism used for weaving sports protective clothing, relates to the field of weaving equipment, and solves the problem that an existing yarn feeding mechanism is difficult to judge yarn breakage in time. The yarn feeding mechanism comprises a yarn feeding disc and a yarn guide cylinder arranged on the outer side of the yarn feeding disc, and a yarn pressing device and a yarn guide wheel are installed on the outer side of the yarn guide cylinder; a yarn storage roller is arranged at the bottom of the yarn guide cylinder, a yarn feeding frame is installed on one side of the yarn guide cylinder, and a belt wheel is arranged at the top of the yarn guide cylinder. The prompting mechanism is used for detecting the slack degree of the yarn in real time and prompting the slack degree in time, and the prompting mechanism is installed on the outer side of the yarn guide barrel; by means of the prompting mechanism, the slack degree of yarn conveyed out of the yarn feeding disc can be detected in real time, alarm information is sent out when the yarn is broken, workers can conveniently and timely overhaul the yarn between the yarn feeding disc and the yarn guide barrel, and therefore the safe knitting effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of knitting equipment, and specifically to a yarn feeding mechanism for knitting sports protective gear. Background Art

[0002] Knitted sports protective gear refers to products made by knitting technology for protecting various parts of the body during sports. Knitted sports protective gear usually adopts 3D stereoscopic knitting technology, which makes the protective gear thin, light, soft, and has good air permeability. It can wrap the body parts in all directions, providing high elasticity and fitting degree, so as to give effective protection and support during sports.

[0003] The yarn feeding mechanism is the core component of knitting sports protective gear, mainly responsible for precisely controlling the feeding amount, tension, and timing of the yarn to ensure that the yarn can be stably and evenly fed into the knitting needle area according to the design requirements during the knitting process. However, when the yarn breaks, the staff cannot quickly know, resulting in the continuous operation of the yarn feeding mechanism, which leads to the failure of knitting sports protective gear. Moreover, the continuous rotation of the yarn roll on the yarn feeding mechanism also causes the yarn to become loose, seriously affecting the efficiency of the knitting operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a yarn feeding mechanism for knitting sports protective gear to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A yarn feeding mechanism for knitting sports protective gear includes: a yarn feeding disk and a yarn guiding cylinder arranged outside the yarn feeding disk. A yarn pressing device and a yarn guiding wheel are fixedly installed on the outside of the yarn guiding cylinder. The yarn guiding wheel is located below the yarn pressing device. A yarn storage roller is arranged at the bottom of the yarn guiding cylinder. A yarn feeding frame is fixedly installed on one side of the yarn guiding cylinder away from the yarn guiding wheel. A belt pulley is arranged at the top of the yarn guiding cylinder. It further includes: a prompting mechanism for detecting the looseness of the yarn in real time and giving timely prompts, and the prompting mechanism is installed on the outside of the yarn guiding cylinder; a stop feeding mechanism for stopping the feeding of the yarn storage roller after the yarn breaks, and the stop feeding mechanism is installed inside the yarn guiding cylinder; a yarn aligning mechanism for locking the yarn on the yarn guiding wheel, and the yarn aligning mechanism is installed on the outside of the yarn guiding wheel.

[0006] Preferably, the prompting mechanism includes a mounting bracket fixedly installed on the outer side of the yarn guide cylinder. One end of the mounting bracket away from the yarn guide cylinder is fixedly installed with a mounting seat. Two symmetrically distributed L-shaped brackets are fixedly installed on the top of the mounting seat. A first sliding rod is fixedly installed between the inner wall of the top of the L-shaped bracket and the top of the mounting seat. A U-shaped sleeve is slidably installed on the outer side of the first sliding rod. An installation pipe is fixedly installed between the two U-shaped sleeves. A plastic pressing roller is rotatably installed on the outer side of the installation pipe. The outer side of the plastic pressing roller is in contact with the outer side of the yarn, and the plastic pressing roller is located above the yarn. Both the installation pipe and the plastic pressing roller are hollow structures. An installation groove is opened on the top of the mounting seat, and an infrared alarm is fixedly installed inside the installation groove. A fixed roller assembly for facilitating the installation of the yarn is further provided on the L-shaped bracket.

[0007] Preferably, the stopping and feeding mechanism includes a rotating rod fixedly installed at the bottom of the pulley. The rotating rod is rotatably installed inside the yarn guide cylinder. A first rhombic rod is fixedly installed at the bottom of the rotating rod. A sleeve is slidably installed on the outer side of the first rhombic rod. A second rhombic rod is fixedly installed at the bottom of the sleeve. A rhombic jack for the second rhombic rod to be limited and inserted is opened on the surface of the yarn storage roller. A pull ring is rotatably installed on the outer side of the sleeve. Two symmetrically distributed pulley rods are fixedly installed on the outer side of the pull ring. The pulley rods are slidably installed inside the yarn guide cylinder. An internal gear ring is rotatably installed inside the yarn guide cylinder. Two symmetrically distributed first push blocks are fixedly installed on the top of the internal gear ring. The top of the first push block is in contact with the end of the pulley rod. A tension spring is fixedly installed between the bottom of the sleeve and the top of the yarn storage roller. A gear motor matched with the internal gear ring is installed inside the yarn guide cylinder. The infrared alarm is electrically connected to the yarn guide cylinder and the gear motor through the mounting bracket. Both sides of the first push block are inclined plane structures.

[0008] Preferably, the wire positioning mechanism includes a positioning bracket fixedly installed on the outer side of the yarn guide wheel. Two symmetrically distributed rocker arms are rotatably installed on the outer side of the positioning bracket. A sleeve box is fixedly installed at one end of the rocker arm away from the yarn guide cylinder. A fixed bracket is rotatably installed between the two sleeve boxes, and the sleeve box is connected to the fixed bracket through a torsion spring. A rubber clamping block located below the yarn guide wheel is fixedly installed on the outer side of the fixed bracket. The rubber clamping block is arc-shaped and provided with a plurality of anti-slip grooves. A cavity for the rocker arm to be limited and slide is opened inside the yarn guide cylinder. A long strip groove is opened at one end of the rocker arm away from the sleeve box. A pressing rod is slidably installed between the two long strip grooves. A spherical abutting block is fixedly installed on the top of the pressing rod. The spherical abutting block is slidably installed inside the cavity of the yarn guide cylinder. A second push block located outside the spherical abutting block is fixedly installed at the bottom of the internal gear ring. An elastic telescopic rod is fixedly installed between the bottom of the pressing rod and the inner side of the cavity of the yarn guide cylinder.

[0009] Preferably, the yarn guide tube is docked with the yarn feeding disc through a sleeve holder.

[0010] Preferably, the fixed roller assembly includes an L-shaped clamping block arranged inside the L-shaped bracket. The L-shaped clamping block is located above the U-shaped sleeve frame, and the bottom of the L-shaped clamping block is of an inclined surface structure. Two symmetrically distributed second sliding rods are fixedly installed on one side of the L-shaped clamping block close to the L-shaped bracket. The second sliding rods slide through the L-shaped bracket. Two springs are fixedly installed between the L-shaped clamping block and the inner side of the L-shaped bracket. A pull rod is fixedly installed between the two second sliding rods.

[0011] Preferably, a protective frame is fixedly installed in the installation groove of the mounting seat, and the top of the protective frame is made of rubber.

[0012] Preferably, a plurality of centrally symmetrically distributed sliding beads are slidably installed inside the U-shaped sleeve frame, and a sliding groove for the sliding beads to be limited is formed on the outer side of the first sliding rod.

[0013] Preferably, a positioning cylinder is fixedly installed on the top of the yarn storage roller, and the positioning cylinder is slidably installed on the outer side of the sleeve.

[0014] Preferably, two centrally symmetrically distributed limiting rods are fixedly installed on the outer side of the sleeve box, limiting discs are fixedly installed at both ends of the fixed frame, and an arc-shaped groove for the limiting rods to be limited and slide is formed on the outer side of the limiting disc.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the prompting mechanism, the present invention can detect the slack of the yarn delivered by the yarn feeding disc in real time, and when the yarn is in a situation of thread breakage, an alarm message is sent, which is convenient for the staff to timely repair the yarn between the yarn feeding disc and the yarn guide tube, so as to achieve the effect of safe knitting.

[0016] 2. Through the stop feeding mechanism, when the infrared alarm operates, the present invention can timely start the gear motor, so that the sleeve can move away from the first rhombic rod on the rotating rod, stop the rotation of the yarn storage roller, and realize the stop of yarn feeding, preventing the situation of knitting disorder, so as to achieve the effect of automatically closing knitting.

[0017] 3. Through the wire positioning mechanism, when the yarn storage roller stops rotating, the second push block on the internal gear ring can push the spherical abutting block to move, realizing the swing of the rocker lever. One end of the rubber clamping block can contact the yarn guide wheel, hold the yarn on the yarn guide wheel, and as the rocker lever swings, the arc surface of the rubber clamping block abuts against the outer side of the yarn guide wheel, realizing the locking of the yarn, which is convenient for the staff to find the end of the yarn, thus improving the convenience of yarn repair. Description of the Drawings

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the yarn guide tube and the yarn presser in the present invention; Figure 3 This is a schematic diagram of the L-shaped bracket and the mounting base in the present invention; Figure 4 This is a schematic diagram of the plastic pressure roller and the mounting tube in the present invention; Figure 5 This is a schematic diagram of the pulley rod and the rotating rod in the present invention; Figure 6 This is a schematic diagram of the pull ring and the sleeve in the present invention; Figure 7 This is a schematic diagram of the rubber clamping block and the lever in the present invention; Figure 8 This is a schematic diagram of the limit disc and the sleeve box in the present invention.

[0019] In the figure: 1, yarn feeding disc; 2, yarn guide tube; 3, yarn presser; 4, yarn guide wheel; 5, yarn storage roller; 6, yarn feeding frame; 7, belt pulley; 8, mounting frame; 9, mounting base; 10, L-shaped bracket; 11, first sliding rod; 12, U-shaped sleeve frame; 13, mounting tube; 14, plastic pressure roller; 15, infrared alarm; 16, rotating rod; 17, first rhombic rod; 18, sleeve; 19, second rhombic rod; 20, pulley rod; 21, internal gear ring; 22, first push block; 23, tension spring; 24, positioning frame; 25, lever; 26, sleeve box; 27, fixing frame; 28, rubber clamping block; 29, pressure rod; 30, spherical abutting block; 31, second push block; 32, elastic telescopic rod; 33, sleeve rack; 34, L-shaped clamping block; 35, second sliding rod; 36, spring; 37, pull rod; 38, protective frame; 39, sliding bead; 40, positioning cylinder; 41, limiting rod; 42, limit disc; 43, pull ring; 44, gear motor. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1: Please refer to Figures 1-8, A yarn feeding mechanism for knitting sports protectors in the illustrated figure, includes a yarn feeding disc 1 and a yarn guiding cylinder 2 arranged outside the yarn feeding disc 1. The yarn guiding cylinder 2 is docked with the yarn feeding disc 1 through a sleeve holder 33, which facilitates the installation of the yarn feeding disc 1 and the yarn guiding cylinder 2 onto the knitting equipment. A yarn pressing device 3 and a yarn guiding wheel 4 are fixedly installed on the outside of the yarn guiding cylinder 2. The yarn guiding wheel 4 is located below the yarn pressing device 3. The tension of the yarn is adjusted by the yarn pressing device 3 and the yarn guiding wheel 4. A yarn storage roller 5 is arranged at the bottom of the yarn guiding cylinder 2, which is used for winding and storing the yarn and rotating to pay out the yarn. A yarn feeding frame 6 is fixedly installed on the side of the yarn guiding cylinder 2 away from the yarn guiding wheel 4. The yarn on the yarn storage roller 5 is transported outward through the yarn feeding frame 6 for knitting. A pulley 7 is arranged at the top of the yarn guiding cylinder 2; further includes: a prompting mechanism, which is used for detecting the slackness of the yarn in real time and giving a timely prompt, and the prompting mechanism is installed on the outside of the yarn guiding cylinder 2; a stop feeding mechanism, which stops the transportation of the yarn storage roller 5 after the yarn breaks, and the stop feeding mechanism is installed inside the yarn guiding cylinder 2; a yarn aligning mechanism, which is used for locking the yarn on the yarn guiding wheel 4, and the yarn aligning mechanism is installed on the outside of the yarn guiding wheel 4.

[0022] The prompting mechanism includes a mounting frame 8 fixedly mounted on the outer side of the yarn guide cylinder 2, a mounting seat 9 is fixedly mounted on one end of the mounting frame 8 away from the yarn guide cylinder 2, two symmetrically distributed L-shaped brackets 10 are fixedly mounted on the top of the mounting seat 9, a first slide bar 11 is fixedly mounted between the top inner wall of the L-shaped bracket 10 and the top of the mounting seat 9, a U-shaped sleeve frame 12 is slidably mounted on the outer side of the first slide bar 11, a mounting tube 13 is fixedly mounted between the two U-shaped sleeve frames 12, a plastic pressure roller 14 is rotatably mounted on the outer side of the mounting tube 13, the outer side of the plastic pressure roller 14 is in contact with the outer side of the yarn, and the plastic pressure roller 14 is located above the yarn, the yarn presser 3 and the yarn guide wheel 4 are used to exert tension on the yarn, so that the yarn lifts up the plastic pressure roller 14, and the plastic pressure roller 14 can pass through the mounting tube 13 drives the U-shaped sleeve frame 12 to contact along the outer side of the first slide bar 11, keeps the plastic pressure roller 14 in contact with the yarn, and can drive the plastic pressure roller 14 to rotate on the outer side of the mounting tube 13 when the yarn is transported, so as to avoid the plastic pressure roller 14 causing wear on the yarn. Both the mounting tube 13 and the plastic pressure roller 14 are hollow structures, which reduces the weight of the mounting tube 13 and the plastic pressure roller 14. A mounting groove is provided on the top of the mounting seat 9, and an infrared alarm 15 is fixedly installed on the inner side of the mounting groove. The infrared alarm 15 can detect the height of the plastic pressure roller 14 in real time through infrared rays. When the yarn is highly relaxed or broken, the plastic pressure roller 14 can move downward accordingly, so that the infrared alarm 15 observes that the height of the plastic pressure roller 14 is low, and then issues an alarm in time. The tip is to facilitate timely adjustment and maintenance by the staff. A protective frame 38 is fixedly installed in the mounting groove of the mounting seat 9. The top of the protective frame 38 is made of rubber material, so that the falling plastic pressure roller 14 can contact the top of the protective frame 38 to provide protection for the plastic pressure roller 14. A plurality of sliding beads 39 symmetrically distributed in the center are slidably installed on the inner side of the U-shaped sleeve 12. A sliding groove for the sliding beads 39 to limit the sliding of the sliding beads 39 is provided on the outer side of the first slide bar 11, so that the U-shaped sleeve 12 can move downward quickly. A fixed roller assembly for installing yarn is also provided on the L-shaped bracket 10. The fixed roller assembly includes an L-shaped block 34 arranged on the inner side of the L-shaped bracket 10. The L-shaped block 34 is located above the U-shaped sleeve 12, and the bottom of the L-shaped block 34 is an inclined structure, so that the U-shaped sleeve 1 When moving upward, it can move along the inclined surface of the L-shaped block 34, and the U-shaped sleeve 12 can push the L-shaped block 34 to move. Two symmetrically distributed second slide bars 35 are fixedly installed on the side of the L-shaped block 34 close to the L-shaped bracket 10. The second slide bars 35 slide through the L-shaped bracket 10. Two springs 36 are fixedly installed between the L-shaped block 34 and the inner side of the L-shaped bracket 10. When the U-shaped sleeve 12 contacts the L-shaped block 34, the second slide bars 35 can be pushed to move along the inner side of the L-shaped bracket 10 and compress the springs 36. When one end of the U-shaped sleeve 12 is away from the L-shaped block 34, the rebound force of the springs 36 can be used to make the L-shaped block 34 press against the outer side of the U-shaped sleeve 12 to achieve the positioning of the U-shaped sleeve 12.The plastic pressure roller 14 can be suspended on the inner wall of the top of the L-shaped bracket 10, which is convenient for installing the yarn. A pull rod 37 is fixedly installed between the two second sliding rods 35, which is convenient for pulling the L-shaped block 34 to reset the plastic pressure roller 14 downward.

[0023] Embodiment 2: Please refer to Figure 5 With Figure 6 , this embodiment further describes Embodiment 1. The illustrated yarn stopping mechanism includes a rotating rod 16 fixedly installed at the bottom of the pulley 7. The rotating rod 16 is rotatably installed inside the yarn guide tube 2. When the pulley 7 is installed with the transmission belt, the pulley 7 can drive the rotating rod 16 to rotate. A first rhombic rod 17 is fixedly installed at the bottom of the rotating rod 16. A sleeve 18 is slidably installed on the outer side of the first rhombic rod 17, so that the rotating rod 16 can drive the sleeve 18 to rotate through the first rhombic rod 17. A second rhombic rod 19 is fixedly installed at the bottom of the sleeve 18. A rhombic jack for the second rhombic rod 19 to be limited and inserted is provided on the surface of the yarn storage roller 5, so that the sleeve 18 can drive the yarn storage roller 5 to rotate through the second rhombic rod 19, realizing the conveying of the yarn. A pull ring 43 is rotatably installed on the outer side of the sleeve 18. Two symmetrically distributed pulley rods 20 are fixedly installed on the outer side of the pull ring 43. The pulley rods 20 are slidably installed inside the yarn guide tube 2. An internal gear ring 21 is rotatably installed inside the yarn guide tube 2. Two symmetrically distributed first push blocks 22 are fixedly installed at the top of the internal gear ring 21. The top of the first push block 22 is in contact with the end of the pulley rod 20. A tension spring 23 is fixedly installed between the bottom of the sleeve 18 and the top of the yarn storage roller 5. When the internal gear ring 21 rotates, the first push block 22 can move away from the pulley rod 20. Using the resilience of the tension spring 23, the sleeve 18 can move downward and away from the first rhombic rod 17, then the yarn storage roller 5 can be stopped from rotating, realizing the stopping of the yarn conveying. A gear motor 44 matched with the internal gear ring 21 is installed inside the yarn guide tube 2. The infrared alarm 15 is electrically connected to the yarn guide tube 2 and the gear motor 44 through the mounting bracket 8. When the infrared alarm 15 is operating, the gear motor 44 can be turned on, and the gear motor 44 can drive the internal gear ring 21 to rotate. Both sides of the first push block 22 are inclined plane structures. When the first push block 22 is reset, the pulley rod 20 can be pushed upward through the inclined plane of the first push block 22, realizing the docking of the sleeve 18 and the first rhombic rod 17. A positioning cylinder 40 is fixedly installed at the top of the yarn storage roller 5. The positioning cylinder 40 is slidably installed on the outer side of the sleeve 18, improving the smoothness of the movement of the sleeve 18.

[0024] Embodiment 3: Please refer to Figures 5-8, this embodiment further illustrates other embodiments. The wire aligning mechanism in the figure includes a positioning frame 24 fixedly installed outside the yarn guide wheel 4. Two symmetrically distributed rocker arms 25 are rotatably installed outside the positioning frame 24. A sleeve box 26 is fixedly installed at one end of the rocker arm 25 away from the yarn guide tube 2. A fixing frame 27 is rotatably installed between the two sleeve boxes 26, and the sleeve box 26 is butted against the fixing frame 27 through a coil spring. A rubber clamping block 28 located below the yarn guide wheel 4 is fixedly installed outside the fixing frame 27. The rubber clamping block 28 has an arc-shaped structure and is provided with a plurality of anti-slip grooves. When the rocker arm 25 swings, it can drive the sleeve box 26 to swing upward with the positioning frame 24 as a fulcrum. The sleeve box 26 can then push one end of the rubber clamping block 28 to contact the yarn on the yarn guide wheel 4 through the fixing frame 27, realizing the pre-positioning of the yarn. By using the elasticity of the coil spring, the rubber clamping block 28 drives the fixing frame 27 to swing with the sleeve box 26 as a fulcrum, so that the arc surface of the rubber clamping block 28 fits on the outside of the yarn guide wheel 4. The anti-slip grooves on the rubber clamping block 28 can fix the yarn on the yarn guide wheel 4, realizing the locking of the yarn, which is convenient for the staff to find the end of the yarn after it breaks. A cavity for the limited sliding of the rocker arm 25 is provided inside the yarn guide tube 2. A long slot is provided at one end of the rocker arm 25 away from the sleeve box 26. A pressure rod 29 is slidably installed between the two long slots. A spherical abutting block 30 is fixedly installed at the top of the pressure rod 29. The spherical abutting block 30 is slidably installed in the cavity of the yarn guide tube 2. A second push block 31 located outside the spherical abutting block 30 is fixedly installed at the bottom of the internal gear ring 21. When the internal gear ring 21 rotates, it can push the spherical abutting block 30 to move downward through the second push block 31. The spherical abutting block 30 can then press the end of the rocker arm 25 to swing through the pressure rod 29, realizing the movement of the rubber clamping block 28. An elastic telescopic rod 32 is fixedly installed between the bottom of the pressure rod 29 and the inner side of the cavity of the yarn guide tube 2, so that the elastic telescopic rod 32 can provide support for the bottom of the pressure rod 29. Two centrally symmetrically distributed limiting rods 41 are fixedly installed outside the sleeve box 26. Limiting disks 42 are fixedly installed at both ends of the fixing frame 27. Arc-shaped grooves for the limited sliding of the limiting rods 41 are provided on the outside of the limiting disks 42 to ensure the swinging angle of the fixing frame 27 and ensure that the end of the rubber clamping block 28 contacts the yarn guide wheel 4 first.

[0025] Working principle: First, the staff passes the yarn in the yarn feeding disc 1 through the yarn pressing device 3 and the yarn guiding wheel 4 and winds it around the yarn storage roller 5. Then, the end of the yarn is passed through the yarn feeding frame 6. The tension of the yarn is adjusted by the yarn pressing device 3. The plastic pressing roller 14 is lifted by the straightened yarn, so that the plastic pressing roller 14 abuts against the outer side of the yarn. At this time, the staff docks the transmission belt with the pulley 7, so that the transmission belt drives the pulley 7 to rotate. The pulley 7 drives the rotating rod 16 to rotate. The first rhombic rod 17 on the rotating rod 16 drives the second rhombic rod 19 to rotate through the sleeve 18. The second rhombic rod 19 drives the yarn storage roller 5 to rotate, so that the yarn storage roller 5 cooperates with the yarn feeding disc 1 to convey the yarn. The weaving equipment can then weave through the yarn. When the yarn breaks, the yarn moves away from the plastic pressing roller 14. The plastic pressing roller 14 drives the U-shaped sleeve frame 12 to move downward along the outer side of the first sliding rod 11 through the mounting pipe 13, so that the plastic pressing roller 14 approaches the infrared alarm 15. The infrared alarm 15 detects that the height of the plastic pressing roller 14 is relatively low and issues an alarm prompt to notify the staff to adjust and repair in time. At the same time, the infrared alarm 15 starts the gear motor 44, so that the gear motor 44 drives the internal gear ring 21 to rotate. The internal gear ring 21 drives the two first push blocks 22 and the second push block 31 to perform a circular motion. At this time, the two first push blocks 22 move away from the corresponding pulley rods 20. The return spring force of the tension spring 23 makes the sleeve 18 move downward and away from the first rhombic rod 17. The rotating rod 16 can no longer drive the sleeve 18 to rotate through the first rhombic rod 17, and the yarn storage roller 5 stops rotating to prevent the situation of yarn pulling. At the same time, the second push block 31 contacts the spherical abutting block 30, so that the second push block 31 pushes the spherical abutting block 30 downward. The spherical abutting block 30 pushes the pressing rod 29 to move and compresses the elastic telescopic rod 32. The pressing rod 29 moves along the long slot on the rocker 25, so that the rocker 25 swings downward with the positioning frame 24 as the fulcrum. The other end of the rocker 25 drives the sleeve box 26 to move upward, so that the sleeve box 26 drives the rubber clamping block 28 on the fixing frame 27 to move synchronously. One end of the rubber clamping block 28 contacts the yarn on the yarn guiding wheel 4 to pre-position the yarn. Along with the swing of the rocker 25, the rubber clamping block 28 drives the fixing frame 27 to swing with the sleeve box 26 as the fulcrum. The arc surface of the rubber clamping block 28 fits on the outer side of the yarn guiding wheel 4, so that the yarn in the anti-slip groove of the rubber clamping block 28 is locked on the yarn guiding wheel 4. Finally, the staff finds the end of the yarn after it breaks and repairs the broken yarn, thus achieving the effect of safe weaving, improving the safety of weaving sports protectors, and ensuring the weaving efficiency of the yarn.

[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A yarn feeding mechanism for knitting sports protectors, characterized in that, Comprising: A yarn feeding disc and a yarn guiding cylinder arranged outside the yarn feeding disc. A yarn pressing device and a yarn guiding wheel are installed outside the yarn guiding cylinder. A yarn storage roller is arranged at the bottom of the yarn guiding cylinder. A yarn feeding frame is installed on one side of the yarn guiding cylinder. A pulley is arranged at the top of the yarn guiding cylinder; Also comprising: A prompting mechanism for detecting the slackness of the yarn in real time and giving prompt in time. The prompting mechanism is installed outside the yarn guiding cylinder. The prompting mechanism includes a mounting seat arranged outside the yarn guiding cylinder. Two L-shaped brackets are fixedly installed at the top of the mounting seat. A first sliding rod is installed between the inner wall of the top of the L-shaped bracket and the top of the mounting seat. A U-shaped sleeve frame is slidably installed outside the first sliding rod. A mounting tube is installed between the two U-shaped sleeve frames. A plastic pressing roller is rotatably installed outside the mounting tube. An infrared alarm is arranged at the top of the mounting seat; A stop feeding mechanism for stopping the feeding of the yarn storage roller after the yarn breaks. The stop feeding mechanism is installed inside the yarn guiding cylinder. The stop feeding mechanism includes a rotating rod installed at the bottom of the pulley. A first rhombic rod is fixedly installed at the bottom of the rotating rod. A sleeve is slidably installed outside the first rhombic rod. A second rhombic rod is fixedly installed at the bottom of the sleeve. A pull ring is rotatably installed outside the sleeve. Two pulley rods are fixedly installed outside the pull ring. An internal gear ring is rotatably installed inside the yarn guiding cylinder. Two first pushing blocks are fixedly installed at the top of the internal gear ring; A yarn aligning mechanism for locking the yarn on the yarn guiding wheel. The yarn aligning mechanism is installed outside the yarn guiding wheel.

2. The yarn feeding mechanism for knitting sports protectors according to claim 1, characterized in that: The prompting mechanism further includes a mounting frame fixedly installed outside the yarn guiding cylinder. The mounting seat is fixedly installed outside the mounting frame. The outside of the plastic pressing roller is in contact with the outside of the yarn, and the plastic pressing roller is located above the yarn. Both the mounting tube and the plastic pressing roller are of a hollow structure. A mounting groove is formed at the top of the mounting seat. The infrared alarm is installed inside the mounting groove. A fixed roller assembly for facilitating the installation of the yarn is also arranged on the L-shaped bracket.

3. The yarn feeding mechanism for knitting sports protective gear according to claim 2, characterized in that: The stop feeding mechanism further includes a tension spring fixedly installed between the sleeve and the yarn storage roller. The rotating rod is rotatably installed inside the yarn guiding cylinder. The top of the first pushing block is in contact with the end of the pulley rod. The pulley rod is slidably installed inside the yarn guiding cylinder. A rhombic jack for limiting and inserting the second rhombic rod is formed on the surface of the yarn storage roller. A gear motor matched with the internal gear ring is installed inside the yarn guiding cylinder. The infrared alarm is electrically connected to the yarn guiding cylinder and the gear motor through the mounting frame.

4. A yarn feeding mechanism for knitting sports protective gear according to claim 3, characterized in that: The yarn aligning mechanism includes a positioning frame installed outside the yarn guiding wheel. Two rocker arms are rotatably installed outside the positioning frame. A sleeve box is fixedly installed at one end of the rocker arm. A fixing frame is rotatably installed between the two sleeve boxes, and the sleeve box is connected to the fixing frame through a coil spring. A rubber clamping block is fixedly installed outside the fixing frame. A cavity for limiting the sliding of the rocker arm is formed inside the yarn guiding cylinder. A long strip groove is formed at one end of the rocker arm. A pressing rod is slidably installed between the two long strip grooves. A spherical abutting block is fixedly installed at the top of the pressing rod. A second pushing block located outside the spherical abutting block is fixedly installed at the bottom of the internal gear ring. An elastic telescopic rod is installed between the bottom of the pressing rod and the inner side of the cavity of the yarn guiding cylinder.

5. A yarn feeding mechanism for knitting sports protective gear according to claim 1, characterized in that: The yarn guiding cylinder is connected to the yarn feeding disc through a sleeve frame.

6. The yarn feeding mechanism for knitting sports protective gear according to claim 2, characterized in that: The fixed roller assembly includes an L-shaped clamping block arranged inside the L-shaped bracket, and the bottom of the L-shaped clamping block is of an inclined surface structure. Two second sliding rods are fixedly installed on one side of the L-shaped clamping block. The second sliding rods slide through the L-shaped bracket. Two springs are installed between the L-shaped clamping block and the inner side of the L-shaped bracket. A pull rod is fixedly installed between the two second sliding rods.

7. The yarn feeding mechanism for knitting sports protective gear according to claim 2, characterized in that: A protective frame is fixedly installed in the installation groove of the mounting seat, and the top of the protective frame is made of rubber.

8. The yarn feeding mechanism for knitting sports protective gear according to claim 3, characterized in that: A plurality of sliding beads are slidably installed inside the U-shaped sleeve frame, and a sliding groove for limiting the sliding of the sliding beads is formed on the outer side of the first sliding rod.

9. The yarn feeding mechanism for knitting sports protective gear according to claim 3, characterized in that: A positioning cylinder is installed on the top of the yarn storage roller, and the positioning cylinder is slidably installed on the outer side of the sleeve.

10. A yarn feeding mechanism for knitting sports protective gear as claimed in claim 4, characterized in that: Two limiting rods are fixedly installed on the outer side of the sleeve box, limiting disks are fixedly installed at both ends of the fixing frame, and arc-shaped grooves for limiting the sliding of the limiting rods are formed on the outer sides of the limiting disks.

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