Improved thread guiding structure for a thread binding machine

Abstract

The application relates to the technical field of yarn winding machines, in particular to an improved yarn winding machine walking yarn structure which comprises one or more rollers arranged on the periphery of a yarn winding pot, an intermediate turning roller group which comprises intermediate rollers installed on the periphery of the yarn winding pot and is provided with guide rollers for turning yarn guiding, at least one pot outlet position guide roller group arranged on the upper side of the yarn winding pot, yarn guiding through the rollers and converging to the intermediate turning roller group, guiding yarn from the intermediate turning roller group to the pot outlet position guide roller group, and finally turning and guiding yarn to the mold base of the central shaft. Compared with the prior art, the yarn winding machine has the advantages that the yarn winding machine adopts guide rollers or rollers to guide yarn to roll and release yarn on the outer periphery of the yarn ball during the yarn path process, tension fluctuation caused by the high and low scraping of the non-ideal circle radius difference of the inner layer of the yarn ball is slowed down, and the winding tension of the output yarn is minimized.

Description

Technical Field

[0001] This invention relates to the field of yarn tying machine technology, specifically to an improved yarn feeding structure for a yarn tying machine. Background Technology

[0002] In the cable industry, yarn tying machines are functional equipment. Based on the position of the yarn bundle relative to the cable center, they are classified as eccentric (yarn bundle centerline is outside the cable centerline) and concentric (yarn bundle centerline is aligned with the cable centerline). Eccentric machines have a lower tying speed due to their eccentricity; however, they are easier to change yarn, easier to connect, and production is not limited by yarn length. Concentric machines can use longer yarn bundles but require storing spare yarn bundles.

[0003] Chinese Patent No. 201721375278.2 discloses a yarn feeding mechanism for an optical cable binding machine, including a yarn winding mechanism. The yarn winding mechanism includes a yarn spool cavity and a yarn outlet. A yarn feeding path is provided along the edge of the yarn spool cavity to guide the yarn into the yarn outlet. The yarn feeding path includes one or more guide rods arranged along the edge of the yarn spool cavity. This patent achieves long-distance spiral yarn output by adding intermediate guide rods, etc. However, it uses guide rods or ceramic eyelets, which mainly rely on static friction, resulting in relatively large yarn tension fluctuations.

[0004] Chinese Patent No. 202210464665.2 discloses a novel yarn feeding structure for a pot-type yarn binding machine. The yarn binding machine includes a yarn binding ball and a yarn binding pot. A yarn feeding path is provided along the edge of the yarn binding pot to guide the yarn in. The yarn feeding path includes at least one automatic deflecting guide wheel group. The yarn end of the yarn binding ball is connected to the automatic deflecting guide wheel group, which can achieve adaptive left and right deflection in the axial direction. At least one first directional guide wheel group and at least one second directional guide wheel group are fixed at a fixed angle and equidistant from the periphery of the yarn binding pot. The yarn of the yarn binding ball passes through the automatic deflecting guide wheel group, the first directional guide wheel group, and the second directional guide wheel group in sequence. This patent has two problems: firstly, the yarn is prone to escape from the first universal guide wheel; secondly, the structure is relatively complex, and the escaped yarn is prone to being snagged, resulting in yarn unraveling and a significant risk of poor yarn feeding.

[0005] Chinese Patent No. 202222268960.9 discloses an improved yarn feeding mechanism for a pot-type yarn tying machine, including at least one ceramic eye group. Each ceramic eye group includes a large-hole ceramic eye with a central opening, used to forcibly constrain the yarn from the yarn spool at the yarn drawing point on the tying pot. An outlet guide wheel group is located at the outlet of the tying pot. The yarn from the yarn spool sequentially passes through the ceramic eye group, a first directional guide wheel group, a second directional guide wheel group, and the outlet guide wheel group. The first and second directional guide wheel groups are equipped with limiting grooves to constrain the yarn space, causing the yarn to spiral out. This patent uses a ceramic eye for central positioning and then guides the yarn spirally with guide wheels. However, the distance the yarn travels back and forth on the yarn spool is relatively short, and the different diameters of the yarn spools cause significant yarn scraping and fluctuations. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a yarn binding machine that converts all the friction of the yarn path into rolling friction of the guide wheel rotation.

[0007] To achieve the above objectives, an improved yarn feeding structure for a yarn binding machine is designed. The yarn binding machine includes a yarn ball and a yarn binding pot, as well as one or more rollers. The rollers are arranged around the yarn binding pot and distributed around the outer periphery of the yarn ball. At least one intermediate steering roller assembly includes intermediate rollers installed around the yarn binding pot, with guide rollers on the intermediate rollers for steering and guiding the yarn. At least one pot outlet guide roller assembly is arranged on the upper opening side of the yarn binding pot. After the yarn is guided by the rollers, it converges to the intermediate steering roller assembly, and from the intermediate steering roller assembly, the yarn is guided to the pot outlet guide roller assembly, and then guided to the mold seat on the central shaft.

[0008] Preferably, the roller is a thin-walled roller, which is sleeved on the bearing. The bearing has flange bearing seats at both ends. The left side of the bearing is connected to the first roller shaft, and the right side of the bearing is connected to the second roller shaft. The other end of the second roller shaft is fixed to the mounting seat, which is fixed to the wall of the pot. The mounting seat has an adjusting screw device in the shaft hole to adjust the axial roller clearance. The first roller shaft is fixed to the inner wall of the pot or to the mounting seat, which is fixed to the pot wall.

[0009] Preferably, the guide wheel assembly at the pot outlet position includes a guide wheel shaft and a guide wheel. The guide wheel is mounted on the guide wheel shaft, and several bearings are provided inside the guide wheel. Spacers are provided between the bearings. A protective spacer is fitted at the bottom of the guide wheel, and a spring washer is provided at the bottom of the protective spacer. The bottom of the guide wheel shaft is connected to a guide wheel mounting seat, and the guide wheel mounting seat is fixed to the yarn-binding pot.

[0010] Preferably, the intermediate steering roller assembly includes a guide wheel shaft and a guide wheel. The guide wheel is mounted on the guide wheel shaft, and several bearings are provided inside the guide wheel. Spacers are provided between the bearings. A protective spacer is fitted at the bottom of the guide wheel, and a spring washer is provided at the bottom of the protective spacer. The bottom of the guide wheel shaft is fixed inside the yarn binding pot by a connection.

[0011] Preferably, the yarn of the yarn ball passes through the guide roller group at the outlet of the pot and then reaches the yarn binding die or yarn guide roller in the center area.

[0012] Compared with the prior art, the advantages of this invention are as follows: the yarn-binding machine of this invention uses guide wheels or rollers to guide the yarn to run on the outer periphery of the yarn ball during the yarn path process, thereby reducing the tension fluctuations caused by the uneven scraping caused by the different radii of the non-ideal circles in the inner layer of the yarn ball; after the pot rotates, the yarn is bound to the cable core passing through the center of the equipment to minimize the binding tension of the fluctuating output yarn. Attached Figure Description

[0013] Figure 1 This is a front view of the yarn-tying machine structure of the present invention;

[0014] Figure 2 This is a top view of the yarn-tying machine structure of the present invention;

[0015] Figure 3 This is a perspective view of the yarn-tying machine structure of the present invention;

[0016] Figure 4 This is a structural diagram of the drum of the present invention;

[0017] Figure 5 This is a structural diagram of the intermediate steering roller assembly of the present invention;

[0018] Figure 6 This is a structural diagram of the guide wheel assembly at the pot outlet position of the present invention;

[0019] In the diagram: 1. Yarn binding ball, 2. Yarn binding pot, 3. Roller, 4. Intermediate roller, 5. Intermediate steering roller assembly, 6. Yarn binding mold, 7. Pot outlet guide wheel assembly, 8. Guide wheel shaft, 9. Guide wheel, 10. Bearing, 11. Spacer ring, 12. Protective spacer ring, 13. Spring washer, 14. Outlet guide wheel mounting seat, 15. First roller shaft, 16. Side bearing seat, 17. Bearing, 18. Thin-walled roller, 19. Second roller shaft, 20. Shaft mounting seat, 21. Adjusting locking device. Detailed Implementation

[0020] See Figure 1 , Figure 2 and Figure 3An improved yarn guiding structure for a yarn binding machine includes a yarn ball and a yarn binding pot, and one or more rollers. The rollers are arranged around the yarn binding pot and distributed around the outer periphery of the yarn ball. At least one intermediate steering roller assembly includes an intermediate roller mounted around the yarn binding pot, with several guide rollers on the intermediate roller for guiding and steering the yarn. At least one pot outlet guide roller assembly is located at the upper opening of the yarn binding pot. After the yarn is guided by the rollers, it converges to the intermediate steering roller assembly, and then rotates from the intermediate steering roller assembly to the pot outlet guide roller assembly, which then guides the yarn to the mold on the central shaft.

[0021] See Figure 4 The roller is a thin-walled roller. The bearing is fitted with a flange bearing seat at both ends. The left side of the bearing is connected to the first roller shaft, and the right side of the bearing is connected to the second roller shaft. The other end of the second roller shaft is fixed on the mounting seat, which is fixed on the wall of the pot. The mounting seat has an adjusting screw device in the shaft hole to adjust the axial roller clearance. The first roller shaft is fixed on the inner wall of the pot or fixed on the mounting seat, which is fixed on the pot wall.

[0022] See Figure 5 The intermediate steering roller assembly includes a guide wheel shaft and a guide wheel. The guide wheel is sleeved on the guide wheel shaft. Several bearings are provided inside the guide wheel, and spacers are provided between the bearings. A protective spacer is sleeved at the bottom of the guide wheel, and a spring washer is provided at the bottom of the protective spacer. The bottom of the guide wheel shaft is fixed to the yarn binding pot by bolts.

[0023] See Figure 6 The guide wheel assembly at the outlet of the pot includes a guide wheel shaft and a guide wheel. The guide wheel is sleeved on the guide wheel shaft. Several bearings are provided inside the guide wheel, and spacers are provided between the bearings. A protective spacer is sleeved on the bottom of the guide wheel, and a spring washer is provided at the bottom of the protective spacer. The bottom of the guide wheel shaft is inserted into the guide wheel mounting seat, and the guide wheel mounting seat is fixed on the yarn-binding pot.

[0024] Supported by the above structure, the yarn feeding method is as follows: Based on the principle of the longest spiral path of yarn feeding, the yarn spool is gradually gathered after being guided by the rollers to the middle guide wheel for turning and positioning. After passing through several turning guide wheels, it reaches the outlet guide wheel of the pot. All the friction of the yarn path is converted into rolling friction of the rotating guide wheel. At the same time, the yarn spool is gathered by the assembly after passing through several rollers to the turning guide wheel in the middle position. This reduces the tension fluctuation caused by the non-ideal circle and non-close arrangement of the yarn spool in the yarn path, and the different diameter differences between the yarns. This reduces the tension of the final output yarn and achieves the purpose of minimizing the binding tension of the output yarn.

[0025] The yarn originates from the outermost layer of the yarn bundle, passes through rollers to several intermediate roller groups and then to an intermediate guiding roller group. Finally, it passes through the guide roller group at the pot outlet (position 7) and is guided to the yarn binding die or yarn guide roller. The yarn exit point in the yarn diagram is in the opposite direction of the pot's rotation. The yarn bundle is fixed on the tension sleeve of the binding machine. The yarn follows the green path, passing sequentially through rollers, intermediate guiding roller groups, and the guide roller at the pot outlet, finally winding around the cable core. Specifically, several rollers are distributed around the pot at the circumference of the yarn bundle. After being guided by the rollers, the yarn converges to an intermediate turning roller group near the roller. From the intermediate guiding roller group, the yarn is guided to the pot outlet roller group, then to the die or guide rollers or holes on the die that guide the yarn to the central shaft.

[0026] As the spool rotates at high speed, the traction machine pulls the cable core forward, thus spiraling the yarn onto the cable core. Yarn tension is generated by the take-up torque of the yarn bundle. If the yarn take-up path is stable and friction is stable, the take-up torque is stable, and therefore the tension is stable. This allows for adjustment of the servo motor's torque parameters, achieving tension control. The patented design uses rollers and guide wheels to define the yarn's path, gradually drawing it towards the central directional roller. This reduces tension fluctuations caused by friction between the yarn and inner layers of different diameters during the reciprocating left-right unwinding process, thus achieving stable tension control.

[0027] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the invention, based on the technical solutions and novel concepts of the invention, should be covered within the scope of protection of the invention.

Claims

1. An improved slubbing machine walk structure, said slubbing machine comprising a slubbing pot and a slubbing ball, characterized in that Also included One or more rollers, which are arranged on the side of the yarn pot and distributed at the circumferential position of the outer periphery of the yarn ball; At least one intermediate deflection roller set, which comprises an intermediate roller installed on the side of the yarn pot, and a guide roller arranged on the intermediate roller for deflection of the yarn; At least one pot outlet position guide roller set arranged on the upper side of the yarn pot; The yarn is guided by the rollers, converged to the intermediate deflection roller set, guided from the intermediate deflection roller set to the pot outlet position guide roller set, and deflected to the mold seat of the central shaft. The roller is a thin-walled roller, which is sleeved on a bearing, and the both ends of the bearing are sleeved with a stop edge bearing seat. The left side of the bearing is connected with a first roller shaft, and the right side of the bearing is connected with a second roller shaft. The other end of the second roller shaft is fixed on a mounting seat, and the mounting seat is fixed on the wall of the yarn pot. There is an adjusting top pin device on the shaft hole of the mounting seat, which can adjust the axial roller play. The first roller shaft is fixed on the inner wall of the pot side or the mounting seat, and the mounting seat is fixed on the wall of the pot. The pot outlet position guide roller set comprises a guide roller shaft and a guide roller, and the guide roller is arranged on the guide roller shaft. A plurality of bearings are arranged inside the guide roller, and a partition ring is arranged between the bearings. A protective partition ring is sleeved on the bottom of the guide roller, and a spring pad is arranged at the bottom of the protective partition ring. The bottom of the guide roller shaft is connected to the guide roller mounting seat, and the guide roller mounting seat is fixed on the yarn pot.

2. An improved thread-traveling structure of a thread binding machine according to claim 1, wherein The intermediate deflection roller set comprises a guide roller shaft and a guide roller, and the guide roller is arranged on the guide roller shaft. A plurality of bearings are arranged inside the guide roller, and a partition ring is arranged between the bearings. A protective partition ring is sleeved on the bottom of the guide roller, and a spring pad is arranged at the bottom of the protective partition ring. The bottom of the guide roller shaft is connected to the guide roller mounting seat, and the guide roller mounting seat is fixed on the yarn pot.

3. The improved thread-traveling structure of a thread binding machine according to claim 1, wherein The yarn of the yarn ball is guided by the pot outlet position guide roller set to the yarn mold or the yarn guide roller at the central position area.

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