Weft accumulator capable of preventing weft winding
By introducing a spring and sliding stop design into the weft feeder, the problem of uneven weft winding was solved, and orderly winding and length control of the weft were achieved, thus improving the stability of the weft feeder.
Patent Information
- Application Number
- CN202520201586.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-10
AI Technical Summary
Existing weft feeders are prone to weft thread tangling during use, resulting in uneven winding.
A weft feeder comprising a housing, a winding rod, and a rotating motor is designed. The winding rod is equipped with a positioning plate, a yarn storage drum, and a sliding groove. Inside, there are springs and sliding stops. The upper end of the sliding stops is hook-shaped, which can wind the yarn in an orderly manner and prevent tangling.
The design of springs and sliding stops enables orderly winding of yarn, prevents tangling, controls winding length, avoids yarn jumping out of the winding rod, and improves the uniformity and stability of weft winding.
Smart Images
Figure CN223921691U_ABST
Abstract
Description
Technical Field
[0001] This utility model patent relates to the field of weft feeder technology, and in particular to a weft feeder that prevents weft threads from tangling. Background Technology
[0002] A weft feeder is a device used on a loom to store weft yarn, primarily used in rapier and projectile looms. Its main function is to temporarily store the unwound weft yarn from the bobbin before it enters the shed, creating favorable conditions for high-speed weft unwinding and ensuring more uniform tension on the unwound weft yarn. In practice, the weft yarn is prone to tangling during use.
[0003] Existing patent CN220503345U provides a weft feeder to prevent weft yarn tangling, which is designed with a yarn guide groove. However, in actual use, the yarn guide groove cannot make the yarn tangling in an orderly manner under ideal conditions. Therefore, this patent application has made an innovation and effectively solved the problem of weft yarn tangling. Summary of the Invention
[0004] (I) Problems to be solved
[0005] It is mainly used to solve the problem of weft yarn entanglement and provides a weft storage device to prevent weft yarn entanglement.
[0006] (II) Technical Solution
[0007] This utility model discloses a weft feeder for preventing weft yarn entanglement, comprising a housing, a winding rod, and a mounting frame. A support frame is provided at the bottom of the housing, and a rotary motor is fixedly installed on the support frame. The winding rod is fixedly installed at the output end of the rotary motor. The winding rod includes a positioning plate, which is disc-shaped. A winding plate is fixedly installed around the right edge of the positioning plate. A yarn storage drum is fixedly installed inside the winding plate. A sliding groove is opened on the outside of the yarn storage drum, and a spring is coaxially arranged inside. The bottom end of the spring is fixedly installed on the positioning plate, and a sliding stop is fixedly installed on the top end. The sliding stop is inserted into the sliding groove.
[0008] As a preferred technical solution, a mounting bracket is bolted to the bottom of the chassis, and the mounting bracket is L-shaped.
[0009] As a preferred technical solution, the upper end of the sliding stop is hook-shaped, one side is a slanted sliding surface, and the lower part is a parallel cutting surface.
[0010] As a preferred technical solution, an adjustment component is provided on the top of the chassis.
[0011] As a preferred technical solution, ventilation and heat dissipation vents are provided on both sides of the external chassis.
[0012] As a preferred technical solution, a yarn-stopping hook is provided on the top of the machine casing, directly opposite the upper end of the winding bar.
[0013] (III) Beneficial Effects
[0014] The beneficial effects of this utility model are as follows: A single sliding groove is provided on the outside of the yarn storage drum, and a spring is coaxially arranged inside. The bottom end of the spring is fixedly installed on the positioning plate below, and a sliding stop is fixedly installed on its top end, inserted into the sliding groove. The upper end of the sliding stop is hook-shaped, with a beveled sliding surface on one side and a parallel cutting surface below. The beveled sliding surface and the spring can effectively help the yarn pass through and wind in an orderly manner, preventing the yarn from tangling. The parallel cutting surface below can prevent the yarn from jumping out of the winding rod and disrupting the yarn winding. The spring can make the sliding stop extend and retract, which can effectively control the final winding length of the yarn. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the yarn winding rod of this utility model;
[0018] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model.
[0019] 1-Chassis; 11-Adjusting parts; 12-Ventilation vent; 13-Yarn stop hook; 2-Yarn winding rod; 21-Positioning plate; 22-Yarn winding plate; 23-Yarn storage drum; 231-Sliding groove; 24-Spring; 25-Sliding stop; 251-Beveled sliding surface; 252-Parallel cutting surface; 3-Mounting frame; 4-Support frame; 5-Rotating motor. Detailed Implementation
[0020] The present invention provides a weft feeder for preventing weft yarn tangling, with reference to the accompanying drawings.
[0021] As attached Figure 1-3 The diagram shows a weft feeder for preventing weft yarn tangling, comprising a housing 1, a winding rod 2, and a mounting frame 3. A support frame 4 is provided at the bottom of the housing 1, and a rotary motor 5 is fixedly mounted on the support frame 4. The winding rod 2 is fixedly mounted at the output end of the rotary motor 5.
[0022] Reference Appendix Figure 2The yarn winding rod 2 includes a positioning disc 21, which is disc-shaped. A yarn winding plate 22 is fixedly installed around the right edge of the positioning disc 21. The positioning disc 21 tightens the yarn winding plate 22 and adjusts it to a suitable inner cylinder diameter and tension. A yarn storage drum 23 is fixedly installed inside the yarn winding plate 22. The yarn storage drum 23 has a sliding groove 231 on its outside and a spring 24 is coaxially arranged inside. The bottom end of the spring 24 is fixedly installed on the positioning disc 21, and a sliding stop 25 is fixedly installed on the top end of the spring 24. The sliding stop 25 is inserted into the sliding groove 231. The spring 24 enables the sliding stop 25 to extend and retract, effectively controlling the final winding length of the yarn. After the yarn is pre-wound 5-6 times through the yarn winding plate 22, it passes through the sliding stop 25 and passes through the yarn stop hook 13.
[0023] Furthermore, a mounting bracket 3 is bolted to the bottom of the chassis 1, and the mounting bracket 3 is L-shaped.
[0024] Reference Appendix Figure 3 Furthermore, the upper end of the sliding stop 25 is hook-shaped, with a slanted sliding surface 251 on one side and a parallel cutting surface 252 on the lower side. The yarn slides into the winding plate 22 through the slanted sliding surface 251, which effectively helps the yarn pass through and wind in an orderly manner, preventing the yarn from tangling. The parallel cutting surface 252 below the sliding stop 25 can prevent the yarn from jumping out of the winding rod 2 and disrupt the yarn winding direction.
[0025] Furthermore, an adjustment component 11 is provided on the top of the casing 1. The adjustment component 11 can adjust the tension of the yarn.
[0026] Furthermore, ventilation openings 12 are provided on both sides of the outer side of the casing 1. This effectively helps the weft insertion machine dissipate heat and prevents the operating temperature from becoming too high, which could damage the motor.
[0027] Furthermore, a yarn-stopping hook 13 is provided on the top of the machine housing 1, directly opposite the upper end of the winding rod 2.
[0028] The working principle of this utility model is as follows: In use, the positioning plate 21 is first tightened to secure the winding plate 22, and the inner cylinder diameter and tightness are adjusted accordingly. After pre-winding the yarn through the winding plate 22 for 5-6 turns, it passes through the sliding stop 25 and then through the yarn stop hook 13. The rotary motor 5 is started to begin winding the yarn. The yarn slides into the winding plate 22 through the obliquely cut surface 251. The obliquely cut surface 251 effectively helps the yarn pass through and wind in an orderly manner, preventing the yarn from tangling. The parallel cut surface 252 below the sliding stop 25 prevents the yarn from jumping out of the winding rod 2, disrupting the yarn winding direction. The spring allows the sliding stop 25 to extend and retract, effectively controlling the final winding length of the yarn. When the yarn is wound to the appropriate length, the yarn stop hook 13 is lifted, cutting the yarn and completing the entire winding process.
[0029] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the design concept of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully described in the claims.
Claims
1. A weft feeder for preventing weft yarn tangling, comprising a housing (1), a winding bar (2), and a mounting frame (3), characterized in that: The bottom of the housing (1) is provided with a support frame (4), and a rotary motor (5) is fixedly installed on the support frame (4). A winding rod (2) is fixedly installed at the output end of the rotary motor (5). The winding rod (2) includes a positioning plate (21). The positioning plate (21) is disc-shaped. A winding plate (22) is fixedly installed around the right side of the edge of the positioning plate (21). A yarn storage drum (23) is fixedly installed inside the winding plate (22). A sliding groove (231) is opened on the outside of the yarn storage drum (23). A spring (24) is coaxially arranged inside. The bottom end of the spring (24) is fixedly installed on the positioning plate (21), and a sliding stop (25) is fixedly installed on the top end. The sliding stop (25) is inserted into the sliding groove (231).
2. A weft feeder for preventing weft yarn tangling according to claim 1, characterized in that: The bottom of the chassis (1) is bolted with a mounting bracket (3), which is L-shaped.
3. A weft feeder for preventing weft yarn tangling according to claim 1, characterized in that: The upper end of the sliding stop (25) is hook-shaped, with a slanted sliding surface (251) on one side and a parallel cutting surface (252) on the lower side.
4. A weft feeder for preventing weft yarn tangling according to claim 1, characterized in that: An adjustment component (11) is provided on the top of the chassis (1).
5. A weft feeder for preventing weft yarn tangling according to claim 4, characterized in that: Ventilation vents (12) are provided on both sides of the outside of the chassis (1).
6. A weft feeder for preventing weft yarn tangling according to claim 1, characterized in that: A yarn-stopping hook (13) is provided on the top of the machine housing (1), directly opposite the upper end of the winding rod (2).