High-speed braiding machine core tube structure

Abstract

This utility model discloses a core tube structure for a high-speed braiding machine, belonging to the field of braiding machinery technology. To solve the problem that traditional core tube fixing methods cannot stably transport elastic yarn after the integrated high-speed rotation of the dial rotor and hollow shaft, this utility model adopts a core tube structure for a high-speed braiding machine, including a high-speed rotating dial rotor and a hollow shaft assembly. The key is that the core tube is independently fixed to the bottom shell of the braiding machine, with its tube body passing through the inner hole of the hollow shaft, thus forming an independent stationary yarn-passing channel inside the high-speed rotating hollow shaft; a pre-reserved anti-contact gap is provided between the outer wall of the core tube and the inner wall of the hollow shaft. Through ingenious structural improvements, this utility model breaks the traditional thinking that the core tube must be attached to a structure near the main shaft, achieving stable, reliable, and wear-free transport of various yarns such as latex yarn at extremely high speeds.

Description

Technical Field

[0001] This utility model relates to the field of braiding machinery technology, and in particular to a core tube structure for high-speed braiding machines. Background Technology

[0002] Braiding machines are key equipment used for weaving ropes, belts, and other products. In traditional braiding machines, the dial rotor and hollow shaft are usually in a sliding rotational fit, with the hollow shaft fixed to the panel. In this structure, the core tube used to feed the core thread (such as latex thread) is generally fixed on the non-rotating hollow shaft or rotor shaft to achieve stable thread feeding. This structure has high energy consumption and requires a special lubrication gear oil tank.

[0003] To improve production efficiency, high-speed braiding machine designs have emerged in the industry. For example, the design disclosed in Chinese patent application CN202410148089.X integrates the dial rotor and hollow shaft into one unit, using bearings to achieve rolling rotation between the hollow shaft and the panel. The gears are powder metallurgy self-lubricating gears, eliminating the need for an oil tank and reducing energy consumption by 70%. However, this structural innovation also brings new technical problems: when the hollow shaft rotates, the core tube traditionally fixed to it also rotates, leading to unstable delivery of elastic threads (such as latex filaments), and the rotational friction easily damages the core tube, especially the soft latex tube.

[0004] Therefore, there is an urgent need in the field for a solution that can be adapted to the new structure of such high-speed braiding machines, ensure stable wire delivery, and protect the core tube from wear. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a core tube structure for a high-speed braiding machine. This structure can effectively solve the contradiction between the high-speed rotating hollow shaft and the stable conveying of the core tube.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-speed braiding machine core tube structure includes a rotating assembly formed by a dial rotor, bearings, and a hollow shaft. The key feature is that it also includes a core tube. The bottom of the core tube is fixedly mounted on the bottom shell of the braiding machine via a fixing mechanism. The tube body of the core tube extends upward and passes through the inner hole of the hollow shaft. A radial gap exists between the outer wall of the core tube and the inner wall of the hollow shaft.

[0007] The core concept of this invention lies in breaking away from the traditional mindset that the core tube must be fixed to the spindle components, and creatively establishing an "independent, stationary wire-passing channel." By transferring the mounting base of the core tube from the rotating system to a fixed base shell, and allowing its body to pass through the center of the rotating hollow shaft, the separation of the moving (hollow shaft) and the stationary (core tube) is achieved. The radial clearance ensures that the high-speed rotating hollow shaft will never come into contact with or rub against the stationary core tube under any circumstances.

[0008] The beneficial effects of this utility model are as follows: High reliability: Completely avoids friction between high-speed rotating parts and core tubes, significantly extending the service life of core tubes (especially vulnerable latex tubes).

[0009] Stable wire feeding: The core tube is firmly fixed to the bottom shell, providing a stable wire feeding path, which is particularly beneficial for the smooth transport of elastic latex filaments and prevents wire breakage or uneven tension.

[0010] High versatility: This structure is not only suitable for latex threads, but also for various other threads such as cotton threads, chemical fibers, and metal wires, greatly expanding the process range of high-speed braiding machines.

[0011] The solution is ingenious and easy to implement: it solves key technical bottlenecks and has high industrial value by simply changing the fixed position and path of the core tube without significantly increasing the structural complexity. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the bottom fixing structure of the core tube of this utility model.

[0014] Figure 3 This is a partial schematic diagram of the core tube and the inner side of the upper end of the hollow shaft of this utility model for rotational support. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] like Figure 1-3 As shown, the high-speed braiding machine core tube structure of this utility model mainly includes a rotating assembly and a core tube 4.

[0017] The rotating assembly is assembled from a dial rotor 1, a special bearing 2, and a hollow shaft 3. The hollow shaft 3 forms a high-speed rotating support with the machine's panel 11 via the bearing 2.

[0018] The bottom of the core tube 4 has an integrally formed flange 41. During assembly, the rotating assembly is first installed in place, and then the core tube 4 is passed through the inner hole of the hollow shaft 3 from below, so that its flange 41 fits against the inner side of the bottom shell 5. Finally, the nut 7 is tightened onto the thread of the flange 41 from the outside of the bottom shell 5, thereby firmly fixing the core tube 4 to the bottom shell 5. The core tube 4 is preferably a latex tube.

[0019] To ensure absolute safety, the difference between the inner diameter of the hollow shaft 3 and the outer diameter of the core tube 4 forms a radial clearance 6 on one side. This clearance ensures that the hollow shaft 3 will not rub against the core tube 4 during high-speed rotation and slight vibration. The reserved clearance is mainly for applications with low traction forces such as those applied through the core tube; if the force is greater, the clearance required by this application is necessary. Figure 3 As shown, a support bearing is used for support to prevent the components from being damaged by friction.

[0020] A washer 8 was added between the nut 7 and the base shell 5. This washer 8 increases the force-bearing area, making the core tube 4 more securely fixed and preventing loosening under long-term vibration.

[0021] like Figure 3 As shown, a support bearing 12 is installed between the inner side of the upper end of the hollow shaft 3 and the core tube 4. The design of the support bearing prevents the core tube from rubbing against the rotating hollow shaft when the core tube is subjected to excessive traction force, which could lead to component damage. A bearing mounting ring groove is designed at the upper end of the hollow shaft, which facilitates the installation of the support bearing. The support bearing ensures the contact between the core tube and the high-speed rotating hollow shaft.

[0022] In addition, a dust cover 9 is installed to protect the bottom transmission components and keep them clean. The dust cover fits tightly on the outside of the core tube and is located above the hollow shaft 3 or the support bearing 12. The protruding edge of the dust cover covers the radial gap 6. The dust cover has a tapered hole in the middle. Due to the tapered design, the dust cover is secured to the outside of the core tube. The lower end of the dust cover has a ring-shaped protruding edge, which is used to cover the radial gap 6. The dust cover can effectively prevent yarn ends, dust and other debris from entering.

[0023] It also includes a ceramic ring 10, which is installed on the inner side of the upper port of the core tube 4. The ceramic ring prevents friction breakage when certain special core wires (such as rubber threads) pass through.

[0024] As can be seen from the above specific embodiments, this utility model has successfully solved a specific technical problem in the field of high-speed weaving machines through a cleverly conceived structure of "static channel passing through dynamic axis", providing key technical support for the efficient, stable and diversified production of such equipment.

Claims

1. A high-speed braiding machine core tube structure, comprising a rotating assembly formed by a dial rotor (1), bearings (2), and a hollow shaft (3), characterized in that: It also includes a core tube (4), the bottom of which is fixedly installed on the bottom shell (5) of the braiding machine by a fixing mechanism. The tube body of the core tube (4) extends upward and passes through the inner hole of the hollow shaft (3). There is a radial gap (6) between the outer wall of the core tube (4) and the inner wall of the hollow shaft (3).

2. The high-speed braiding machine core tube structure according to claim 1, characterized in that: The fixing mechanism includes a flange (41) located at the bottom of the core tube (4) and a nut (7) that cooperates with the flange (41), thereby locking the flange (41) to the outside of the bottom shell (5) by means of the nut (7).

3. The high-speed braiding machine core tube structure according to claim 1, characterized in that: A support bearing (12) is installed between the inner side of the upper end of the hollow shaft (3) and the core tube (4).

4. A high-speed braiding machine core tube structure according to claim 1 or 3, characterized in that: It also includes a dust cover (9), which is tightly fitted on the outside of the core tube and is located above the hollow shaft (3) or the support bearing (12). The protruding edge of the dust cover is shielded above the radial gap (6).

5. The high-speed braiding machine core tube structure according to claim 1, characterized in that: It also includes a ceramic ring (10), which is installed on the inner side of the upper port of the core tube (4).

6. A weaving machine, characterized in that: The application has a high-speed braiding machine core tube structure as described in any one of claims 1 to 5.

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