Deep sea net braider
By introducing adjustment components and friction-driven take-up rollers into the deep-sea fishing net weaving machine, the problems of uneven warp tension and unstable take-up tension have been solved, achieving high-quality deep-sea fishing net weaving and reducing equipment complexity and maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG VOCATIONAL & TECHNICAL COLLEGE
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-05
AI Technical Summary
Existing deep-sea fishing net weaving machines suffer from inconvenient and inaccurate warp tension adjustment, complex and costly winding mechanisms, or unstable tension, resulting in poor quality of finished netting.
It adopts an adjustment component and a friction-driven take-up roller structure, and achieves uniform tension control of the warp feed roller through gear rack and buffer spring. It uses friction to drive the take-up roller to rotate at a constant speed, avoiding complex servo motor and tension sensor systems.
It achieves uniform and stable warp tension, constant tension during winding, simplifies equipment structure, reduces costs, and improves equipment reliability and durability, ensuring the quality of finished netting.
Smart Images
Figure CN224325514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of deep-sea fishing net weaving technology, and in particular to a deep-sea fishing net weaving machine. Background Technology
[0002] Currently, with the global aquaculture industry expanding into deep-sea areas, large deep-sea wave-resistant cages have become the mainstream aquaculture facilities. As a core component of these cages, the performance of deep-sea netting directly determines the safety and success of aquaculture. This type of netting needs to withstand harsh sea conditions over long periods, thus placing far more stringent requirements on its material strength, structural stability, and dimensional accuracy than traditional fishing nets.
[0003] Regarding the aforementioned issues, existing heavy-duty mesh weaving machines, when handling high-strength, large-diameter polyethylene monofilament or composite yarns, often employ a method of setting multiple sets of high-strength pressure rollers before the yarn enters the weaving zone for tension control. Initial tension is applied to the yarn by manually tightening the clamping bolts on both sides. In the finished product winding stage, some high-end machines utilize a torque control system to handle the large and heavy finished mesh garments. This system uses tension sensors installed along the mesh path to monitor data in real time and feed it back to an industrial controller. The controller then precisely adjusts the output torque of a high-power servo motor to drive the winding rollers for winding, adapting to the continuously increasing roll diameter.
[0004] However, the inherent limitations of existing technologies in the production of deep-sea netting have gradually become apparent. First, the tension adjustment device relies on manual adjustment of the bolts at both ends. This adjustment method is not only cumbersome, but more importantly, it is extremely difficult to ensure that the pressure applied to both sides is completely equal. For rigid netting with low elongation, even a slight difference in tension can cause deformation of the final netting, resulting in accumulated internal stress and becoming a safety hazard for the netting.
[0005] Secondly, regarding the winding mechanism, while the torque closed-loop control system based on sensors and servo motors is advanced in function, its system structure is extremely complex, containing a large number of precision electronic components. This not only leads to high equipment manufacturing costs, but also increases its failure rate and maintenance difficulty in humid, high-salt production environments. On the other hand, those devices with simpler structures, relying solely on ordinary motors to drive the winding, are completely unable to cope with the huge tension changes caused by the rapid increase in the diameter and weight of the netting roll, easily stretching and damaging the freshly woven netting.
[0006] To address the above problems, a deep-sea fishing net weaving machine is proposed. Utility Model Content
[0007] To overcome the above shortcomings, this utility model provides a deep-sea fishing net weaving machine, which aims to solve the problems of inconvenient and low-precision warp tension adjustment, as well as the complex structure, high cost, or unstable winding tension of the existing deep-sea fishing net weaving machine.
[0008] To achieve the above objectives, the present invention adopts the following technical solution: a deep-sea fishing net weaving machine, comprising a frame, a drive assembly and a warp beam disposed on the top of the frame, and a drive motor mounted on one side of the frame, the output end of the drive motor being connected to the drive assembly via a belt, two side frames disposed on the front side of the frame, two warp feed rollers disposed between the two side frames, and an adjustment assembly disposed on one side of the warp feed rollers, the adjustment assembly comprising a fixed plate, a rotating rod rotatably connected inside the fixed plate, and a gear fixedly connected to the end of the rotating rod, a limit block fixedly connected to the outer side of each of the two warp feed rollers, and a rack fixedly connected to the opposite side of each of the two limit blocks.
[0009] As a further description of the above technical solution:
[0010] The two racks are fixed at different heights on opposite sides of the two limiting blocks, and the opposite side between the two racks is a toothed part.
[0011] As a further description of the above technical solution:
[0012] The gear is located between the two racks, and both sides of the gear mesh with the two racks.
[0013] As a further description of the above technical solution:
[0014] The side frame has an inner groove, the limiting block is slidably connected inside the inner groove, and the end of the rotating rod away from the gear is provided with a handle.
[0015] As a further description of the above technical solution:
[0016] Each of the two side frames is fixedly connected to a support frame at its top. Two take-up rollers are arranged between the two support frames, and a fine-tuning component is provided on one side of each of them. The fine-tuning component includes a slider, which is located at the end of the two take-up rollers, and a buffer spring is provided between the two sliders.
[0017] As a further description of the above technical solution:
[0018] A second drive motor is provided at the end of the bottom winding roller.
[0019] As a further description of the above technical solution:
[0020] The top of the support frame is fixedly connected to a mounting bracket, and the slider is slidably connected inside the mounting bracket.
[0021] As a further description of the above technical solution:
[0022] A work box is provided on one side of the frame.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this invention, an adjustment component at the end of the warp feed roller provides continuous and uniform pretension to the warp yarns entering the weaving area. This effectively avoids unstable yarn feeding caused by fluctuations in warp beam speed or uneven yarn tension, ensuring that each warp yarn entering the weaving mechanism maintains essentially consistent tension. The distance between the two warp feed rollers can be changed by rotating the throttle, thereby controlling the relationship between the gears and the two racks.
[0025] 2. In this invention, a constant web fabric speed is provided by a take-up roller, which passively rotates through frictional motion. This solves the problem of varying linear speed and unstable tension caused by the continuous increase in roll diameter during the winding process. It eliminates the need for expensive servo motors, tension sensors, and complex closed-loop control systems, significantly simplifying the structure and reducing manufacturing costs while improving the reliability and durability of the equipment. Automatic matching of the winding speed ensures that the winding tension remains essentially constant regardless of roll diameter, effectively preventing web fabric stretching and deformation due to excessive or uneven tension, thus guaranteeing the quality of the final product. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of a deep-sea fishing net weaving machine proposed in this utility model;
[0027] Figure 2 for Figure 1 Enlarged view of B in the middle;
[0028] Figure 3 for Figure 1 Enlarged view of A in the middle;
[0029] Figure 4 This is a schematic diagram of the throttle of a deep-sea fishing net weaving machine proposed in this utility model.
[0030] Legend:
[0031] 1. Frame; 2. Work box; 3. Drive assembly; 4. Warp beam; 5. Drive motor one; 6. Side frame; 7. Support frame; 8. Take-up roller; 9. Warp feed roller; 10. Mounting frame; 11. Slider; 12. Buffer spring; 13. Fixing plate; 14. Limit block; 15. Rack; 16. Drive motor two; 17. Gear; 18. Rotary rod; 19. Turning handle. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 - Figure 4 This utility model provides an embodiment of a deep-sea fishing net weaving machine, comprising a frame 1, which serves as the supporting foundation for the entire device. A drive assembly 3 for performing specific weaving actions and a warp beam 4 for supplying raw yarn are stably mounted on the top of the frame 1. A main drive source, i.e., a drive motor 5, is installed on one side of the frame 1, and its output end is connected to the drive assembly 3 via a belt drive mechanism, providing stable and reliable power for the weaving process. Two symmetrical side frames 6 are provided on the front side of the frame 1, i.e., in the direction of net fabric output. At least two warp feed rollers 9 are arranged laterally between the two side frames 6. To precisely control the warp tension before entering the weaving area, this utility model provides an adjustment assembly on one side of the warp feed rollers 9. This adjustment assembly includes a fixed plate 13, on which a rotating rod 18 is rotatably connected. A gear 17 is fixedly welded to the inner end of the rotating rod 18. In conjunction with this, limit blocks 14 are connected to the outer sides of both warp feed rollers 9 via bearings or other means, and the limit blocks 14 can slide within an inner groove opened inside the side frame 6. On the inner sides of the two limiting blocks 14, a rack 15 is fixed respectively. During operation, rotating the handle 19 located at the outer end of the rotating rod 18 drives the gear 17 to rotate. Since the gear 17 meshes with the two racks 15 fixed at different heights, its rotation drives the two racks 15 to produce linear motion in opposite directions, thereby synchronously adjusting the distance between the two warp feed rollers 9. By changing this distance, the clamping force of the warp feed rollers 9 on the warp yarns passing between them can be changed, providing a continuous, stable, and precisely adjustable pretension for the warp yarns entering the subsequent weaving process. This effectively avoids unstable yarn feeding caused by changes in the rotational inertia of the warp beam 4 or fluctuations in the tension of the yarn itself, ensuring that each warp yarn enters the weaving mechanism with a basically consistent tension, laying a solid foundation for the final formation of a high-quality fishing net with uniform mesh and a flat surface.
[0034] Support frames 7 are fixedly connected to the top of the two side frames 6. Between the two support frames 7, two take-up rollers 8 are arranged parallel to each other, one above the other. The bottom take-up roller 8 has a drive motor 16 at one end, serving as the active power source for winding. It rotates at a set constant speed, providing a constant traction speed for the newly formed mesh. The upper take-up roller 8 is a passive roller, without independent power. To achieve stable control of the winding tension, both rollers have fine-tuning components at one end. These components include sliders 11 that slide inside the mounting frame 10, with the shaft ends of the two take-up rollers 8 mounted on the sliders 11. Between the two sliders 11, one or more buffer springs 12 are provided. These buffer springs 12 provide a continuous downward pressure on the upper take-up roller 8, ensuring it presses tightly against the bottom take-up roller 8 driven by the drive motor 16. The woven mesh is pulled and wound onto the upper take-up roller 8. Because a constant pressure is applied by the buffer spring 12 between the upper and lower rollers, the rotation of the upper roller relies entirely on the frictional force between it and the lower roller, forming a "friction-driven" relationship. In the initial winding stage, the roll diameter is small, and the upper roller rotates at a higher speed. As the amount of wound fabric increases and the roll diameter continues to increase, the speed of the upper roller automatically decreases accordingly, but its surface linear velocity remains consistent with that of the lower roller, which serves as the reference. This purely mechanical adaptive adjustment method eliminates the need for expensive servo motors, tension sensors, and complex electrical control systems. This not only significantly simplifies the equipment structure, reduces manufacturing costs and maintenance difficulty, but also improves the overall reliability and durability of the machine, while ensuring constant winding tension throughout the entire process.
[0035] Working Principle: When the equipment is working, the drive motor 5 installed on one side of the frame 1 starts, transmitting power to the drive assembly 3 at the top of the frame 1 via a belt, causing it to begin the weaving action. Simultaneously, the raw warp yarns are drawn from the warp beam 4, travel downwards, and pass through two feed rollers 9 positioned between the two side frames 6. The adjustment assembly here activates, driving the rotating rod 18 and its end gear 17 to rotate by turning the throttle 19. Since the gear 17 simultaneously meshes with racks 15 fixed to two limit blocks 14, it drives the two limit blocks 14 to move towards or away from each other in the inner groove of the side frame 6, thereby changing the distance between the two feed rollers 9. The warp yarns passing through the feed rollers 9 then enter the drive assembly 3 and are woven into a mesh. After the formed mesh is drawn out from the weaving area, it is guided and wound onto the take-up roller 8 located above. At this time, the drive motor 16 installed at the end of the bottom take-up roller 8 rotates at a constant speed, driving the bottom take-up roller 8 to rotate. Because the buffer spring 12, located between the two sliders 11, continuously applies pressure, the upper take-up roller 8 is tightly pressed against the lower take-up roller 8. The rotation of the lower roller drives the upper take-up roller 8 to rotate synchronously through friction, thereby continuously and smoothly winding the mesh fabric into a roll. All components of the entire equipment, including the work box 2, support frame 7, and mounting frame 10, are integrated and mounted on the frame 1 to work together.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A deep-sea fishing net weaving machine, comprising a frame (1), characterized in that: The top of the frame (1) is provided with a drive assembly (3) and a warp beam (4), and a drive motor (5) is installed on one side of the frame (1). The output end of the drive motor (5) is connected to the drive assembly (3) via a belt. Two side frames (6) are provided on the front side of the frame (1). Two warp feed rollers (9) are provided between the two side frames (6). An adjustment assembly is provided on one side of the warp feed rollers (9). The adjustment assembly includes a fixed plate (13). A rotating rod (18) is rotatably connected inside the fixed plate (13). A gear (17) is fixedly connected to the end of the rotating rod (18). Limit blocks (14) are fixedly connected to the outer sides of the two warp feed rollers (9). A rack (15) is fixedly connected to the opposite side of the two limit blocks (14).
2. The deep-sea fishing net weaving machine according to claim 1, characterized in that: The two racks (15) are fixed at different heights on opposite sides of the two limiting blocks (14), and the opposite side between the two racks (15) is a toothed part.
3. A deep-sea fishing net weaving machine according to claim 1, characterized in that: The gear (17) is located between the two racks (15), and the two sides of the gear (17) mesh with the two racks (15).
4. A deep-sea fishing net weaving machine according to claim 1, characterized in that: The side frame (6) has an inner groove, the limiting block (14) is slidably connected to the inside of the inner groove, and the end of the rotating rod (18) away from the gear (17) is provided with a throttle (19).
5. A deep-sea fishing net weaving machine according to claim 1, characterized in that: The top of each of the two side frames (6) is fixedly connected to a support frame (7), and two take-up rollers (8) are arranged between the two support frames (7). A fine-tuning component is provided on one side of each of the two support frames (7). The fine-tuning component includes a slider (11), which is located at the end of the two take-up rollers (8). A buffer spring (12) is provided between the two sliders (11).
6. A deep-sea fishing net weaving machine according to claim 5, characterized in that: The end of the bottom winding roller (8) is provided with a second drive motor (16).
7. A deep-sea fishing net weaving machine according to claim 5, characterized in that: The top of the support frame (7) is fixedly connected to the mounting frame (10), and the slider (11) is slidably connected inside the mounting frame (10).
8. A deep-sea fishing net weaving machine according to claim 1, characterized in that: A work box (2) is provided on one side of the frame (1).