Concentric steel belt armoring drum for a wrapping machine

Abstract

The utility model discloses a concentric type steel tape armoring winding disc for winding machine, including base, the base center place is equipped with the perforation, the perforation is used for cable to pass through, is equipped with two groups of the guide mechanism of the center symmetry of the perforation center relative to the center place of base, and each guide mechanism is used to support and guide to a steel tape.

Description

Technical Field

[0001] This utility model is a concentric steel belt armored wrapping disc for a wrapping machine. Background Technology

[0002] With the increasing demands on cables in fields such as communications, power, and industrial control, especially for cables operating in harsh environments, metal tape armor is often required to enhance their resistance to mechanical shock and external damage. Steel tape armor, as a common reinforcement structure, is widely used in the sheath design of various cables. The steel tape armoring process typically employs a wrapping machine, and the performance and structural design of this machine directly affect the wrapping quality, wrapping speed, and the consistency and stability of the finished cable.

[0003] Most mainstream steel strip wrapping equipment on the market currently adopts an eccentric structure, where the wrapping coil rotates around the center of the cable on an eccentric track to achieve steel strip winding. Although this structure is simple to implement, it has many shortcomings. For example, due to the asymmetrical wrapping path, the path length of the steel strip varies during movement, which can easily cause inconsistent wrapping tension, steel strip deformation or displacement, resulting in quality problems such as overlapping, loosening, or poor adhesion of the armor layer. Furthermore, the mechanical coordination of the eccentric structure is more complex, and the centrifugal force generated during system operation can cause equipment vibration and wear, reducing equipment lifespan and operational stability.

[0004] Furthermore, the eccentric structure, due to increased path disturbances during high-speed wrapping, makes it difficult to maintain dynamic stability during the wrapping process, limiting its application in high-efficiency production scenarios. Especially when multiple steel strips are required to be wrapped synchronously, the eccentric structure struggles to achieve consistent control across multiple paths, easily leading to wrapping misalignment, which affects the product's appearance and protective performance.

[0005] Therefore, there is an urgent need for a steel strip wrapping device with a stable structure, symmetrical path, and adaptability to simultaneous wrapping of multiple steel strips, in order to overcome the limitations of the eccentric structure in the existing technology, improve wrapping efficiency and finished product quality, and provide better equipment support for the automated and efficient production of steel strip armored cables. Utility Model Content:

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a concentric steel belt armored wrapping disc for a wrapping machine.

[0007] A concentric steel strip armored wrapping reel for a wrapping machine includes a base with a through hole at the center for a cable to pass through. The base is provided with two sets of guide mechanisms symmetrical about the through hole at its center, each guide mechanism being used to support and guide a steel strip.

[0008] Furthermore, the guiding mechanism includes a plurality of first guide wheels, second guide wheels, third guide wheels, and guide rods arranged in a circular trajectory with the perforation as the center. The rotation axes of the first guide wheels, second guide wheels, and third guide wheels are perpendicular to each other. The rotation axis of the first guide wheel is parallel to the axis of the perforation. The second guide wheel and the third guide wheel are adjacent to each other, and the third guide wheel is located in front of the second guide wheel.

[0009] Furthermore, the base includes a disc and a ring. The perforation is located at the center of the disc. The ring and the disc are concentrically spaced apart. A first guide wheel is rotatably mounted on a first rotating shaft. The first rotating shaft and the guide rod are arranged along the axis of the perforation between the disc and the ring. A mounting plate is also provided between the disc and the ring. The mounting plate is tangent to the circumferential trajectory. A second rotating shaft is provided on its upper end face. The second guide wheel is rotatably mounted on it. In front of the mounting plate, at the front end face of the ring, there is a mounting seat. A third rotating shaft is provided on the mounting seat. The third guide wheel is rotatably mounted on it.

[0010] Furthermore, there are two first guide wheels and one guide rod, with the guide rod located between the two first guide wheels.

[0011] Furthermore, the mounting base includes a base plate, the rear end face of which is fixedly connected to the front end face of the ring, and the front end face of which is provided with two parallel and spaced connecting plates. The connecting plates are provided with mounting holes, and the two ends of the third rotating shaft pass through the mounting holes and are locked by nuts.

[0012] Furthermore, the mounting hole is an elongated slotted hole.

[0013] Furthermore, the base plate is connected to the ring bolt and welded to the connecting plate.

[0014] Beneficial Effects: Compared with existing technologies, this invention adopts a concentric steel strip armored wrapping reel structure, which has significant technical advantages over the commonly used eccentric design. First, the concentric structure ensures that the cable remains on the central axis of the wrapping reel throughout the wrapping process. The steel strip is guided by symmetrically arranged guiding mechanisms, ensuring balanced force and consistent path during the wrapping process. This avoids problems such as inconsistent winding angles and uneven force caused by eccentric wrapping, thereby significantly improving wrapping accuracy and quality.

[0015] Secondly, the guiding mechanism is symmetrically arranged around the perforation center and uses a three-section guide wheel combination to achieve three-dimensional spatial guiding path control, making the steel strip introduction process smoother and more controllable, effectively avoiding phenomena such as tape jamming and tape skipping. In terms of structural design, the setting of the first guide wheel ensures the initial introduction direction, while the second and third guide wheels undertake the path conversion and final guidance tasks respectively. The overall guiding path is compact and efficient, enabling the steel strip to quickly and stably adhere to the cable surface with a smaller offset.

[0016] Furthermore, the symmetrical design and precise guidance of the entire wrapping path significantly reduce the need for path adjustments and offset corrections, allowing the steel strip to run stably at a higher linear speed, thereby improving the overall wrapping efficiency of the machine. This design not only reduces energy waste caused by path instability but also reduces the frequency of manual adjustments, lowering operational complexity and maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a concentric steel belt armored wrapping reel used in a wrapping machine;

[0018] In the diagram, 1 is a disc, 2 is the first guide wheel, 3 is a guide rod, 4 is a ring, 5 is a mounting base, 6 is the second guide wheel, 7 is a mounting plate, and 8 is the third guide wheel. Detailed Implementation

[0019] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0020] 1. Disc; 2. First guide wheel; 3. Guide rod; 4. Ring; 5. Mounting base; 6. Second guide wheel; 7. Mounting plate; 8. Third guide wheel

[0021] A concentric steel strip armored wrapping reel for a wrapping machine includes a base with a through hole at the center for a cable to pass through. The base is provided with two sets of guide mechanisms that are symmetrical about the through hole at its center. Each guide mechanism is used to support and guide a steel strip.

[0022] This implementation method, by setting a central perforation, allows the cable to pass through the center of the wrapping reel, thus ensuring concentricity with the cable axis during the winding of the steel strip. Two sets of guiding mechanisms are symmetrically arranged around the center of the perforation, effectively supporting and guiding the two steel strips respectively, ensuring that the steel strips adhere evenly and synchronously to the cable surface from opposite directions during wrapping, avoiding skewed winding. The guiding mechanisms, through a reasonable structural arrangement, ensure a stable path and controllable angle for the steel strips before entering the wrapping station, which is conducive to forming a consistent and tight armor layer.

[0023] This structure significantly improves the concentricity and stability during the steel strip wrapping process, ensuring uniform and dense armor layer coverage, effectively enhancing the cable's mechanical protection capabilities and product consistency. By incorporating a dual-set guiding mechanism, simultaneous winding of the two strips in the same direction can be achieved, improving wrapping efficiency. Simultaneously, the base features a central perforation to accommodate cables of different diameters, demonstrating strong structural adaptability and enhancing the device's versatility and practicality.

[0024] In one possible implementation, the guiding mechanism includes a plurality of first guide wheels 2, second guide wheels 6, third guide wheels 8, and guide rods 3 arranged in a circular trajectory with the perforation as the center. The rotation axes of the first guide wheels 2, second guide wheels 6, and third guide wheels 8 are perpendicular to each other. The rotation axis of the first guide wheel 2 is parallel to the axis of the perforation. The second guide wheel 6 and the third guide wheel 8 are adjacent to each other, and the third guide wheel 8 is located in front of the second guide wheel 6.

[0025] The guiding mechanism is evenly distributed around the perforation. The first guide wheel 2 initially changes the direction of the steel strip, aligning its axial direction with the perforation direction. The second guide wheel 6 rotates the steel strip to follow the radial path of the cable. The third guide wheel 8, located in front of the second guide wheel 6, further controls the steel strip's winding angle, achieving precise end-point guidance. The rotation axes of the three sets of guide wheels are perpendicular to each other, forming a complete three-dimensional guiding path, ensuring a smooth and reasonable angle for the steel strip as it is transported from the original drum to the winding point. The guide rod 3, in conjunction with the guide wheels, supports the steel strip to prevent deviation.

[0026] The three-section guide structure design effectively eliminates path instability during steel strip feeding, improving wrapping accuracy and bonding quality. The orthogonal arrangement of the three guide wheels forms a stable guide space, allowing the steel strip to achieve a flexible yet controlled transition in space, significantly reducing twisting and stress concentration, and enhancing equipment lifespan and stability.

[0027] In one possible implementation, the base includes a disc 1 and a ring 4. A perforation is located at the center of the disc 1. The ring 4 and the disc 1 are concentrically spaced apart. A first guide wheel 2 is rotatably mounted on a first rotating shaft. The first rotating shaft and the guide rod 3 are arranged along the axis of the perforation between the disc 1 and the ring 4. A mounting plate 7 is also provided between the disc 1 and the ring 4. The mounting plate 7 is tangent to the circumferential trajectory. A second rotating shaft is provided on its upper end face. A second guide wheel 6 is rotatably mounted on it. In front of the mounting plate 7, at the front end face of the ring 4, a mounting seat 5 is provided. A third rotating shaft is provided on the mounting seat 5. A third guide wheel 8 is rotatably mounted on it.

[0028] The disc 1 and the ring 4 form a concentric support structure, providing a stable installation foundation. A first rotating shaft is positioned between them, supporting the first guide wheel 2 and guide rod 3 for primary guidance. The mounting plate 7 is installed on the outer edge of the ring 4, tangentially to the circumferential trajectory, ensuring the second guide wheel 6 is precisely positioned in the middle of the steel strip guide path, forming a reasonable angle for guidance. The mounting base 5 is located at the foremost position, housing the third guide wheel 8 for precise positioning and guiding to the wrapping point at the end. The three-layer structure has a compact spatial layout and a smooth, continuous guide path.

[0029] This structure achieves a reasonable layout and support for each guide wheel in three-dimensional space, improving the rigidity and durability of the guide structure. The disc 1, the ring 4, and the mounting plate 7 each serve as carriers for components in different guide stages, with clear division of labor, compact structure, and simple assembly, enhancing the overall modular design capability and facilitating manufacturing and maintenance.

[0030] In one possible implementation, there are two first guide wheels 2 and one guide rod 3, with the guide rod 3 located between the two first guide wheels 2.

[0031] Two first guide rollers 2 are located on both sides of the guide rod 3. When the steel belt enters and exits from the first guide rollers 2, it is supported by the guide rod 3 to form a clamping path. The guide rod 3 provides axial support between the two guide rollers to prevent the steel belt from sinking or deviating due to gravity or tension, thereby ensuring smooth subsequent guidance.

[0032] By setting up a combination of two first guide wheels 2 and a single guide rod 3, a stable and efficient primary guiding area is constructed, reducing the free path length of the steel strip, improving the resistance to vibration interference, and enhancing the overall stability and wrapping consistency of the guiding structure.

[0033] In one possible implementation, the mounting base 5 includes a base plate, the rear end face of which is fixedly connected to the front end face of the ring 4, and the front end face of which is provided with two parallel and spaced connecting plates. The connecting plates are provided with mounting holes, and the two ends of the third rotating shaft pass through the mounting holes and are locked by nuts.

[0034] The base plate fixes the mounting base 5 to the front end of the ring 4, forming a stable support surface. The connecting plate is set perpendicular to the base plate, forming a three-dimensional positioning structure to restrict the translation and rotation of the third rotating shaft. After the two ends of the third rotating shaft are inserted into the mounting holes of the connecting plate, they are locked with nuts to ensure the accurate axial position and rotational freedom of the third guide wheel 8.

[0035] This mounting structure improves the accuracy and reliability of the third guide wheel 8's installation position, effectively preventing guide wheel misalignment due to operational vibrations. The structure features strong rigidity, facilitating assembly, disassembly, and maintenance, ensuring the stability of the guiding system.

[0036] In one possible implementation, the mounting hole is an elongated slotted hole.

[0037] The elongated waist hole allows the third rotating shaft to be finely adjusted in the front and back direction on the connecting plate, so that the third guide wheel 8 can be adjusted within a certain range to adapt to the guide path of steel belts of different specifications or tensions, and avoid mismatch of path angles.

[0038] This structure increases the degree of freedom in guide wheel adjustment, improves the adaptability and flexibility of the wrapping disc to various winding paths, and enhances the versatility and ease of operation of the equipment in the production of multi-specification products.

[0039] In one possible implementation, the base plate is bolted to the ring 4 and welded to the connecting plate.

[0040] The base plate is bolted to the front end of ring 4 for easy disassembly and replacement; the connecting plate is fixed to the base plate by welding, improving the overall rigidity and stability of the structure. The combination of these two connection methods balances ease of maintenance with structural strength.

[0041] The combination of bolts and welding effectively improves the maintainability and long-term reliability of the mounting base module 5, reduces on-site commissioning and maintenance time, and increases production efficiency and equipment durability.

[0042] Working principle: By setting a perforation in the center of the base for the cable to pass through, and symmetrically arranging two sets of guiding mechanisms around the perforation, high-precision and synchronous wrapping of the steel strip relative to the cable axis is achieved. Each set of guiding mechanisms includes three sets of guide wheel assemblies arranged in sequence according to the spatial trajectory, namely the first guide wheel 2, the second guide wheel 6, and the third guide wheel 8, whose rotation axes are perpendicular to each other, forming a complete three-dimensional path guiding system.

[0043] Specifically, after the steel strip is led out from the self-feeding device, it first passes through the first guide wheel 2, which is set in the direction of the perforation axis. This guide wheel performs initial correction on the direction of the steel strip, making its axial direction consistent with the cable. Then, it enters the second guide wheel 6, which is arranged perpendicular to the first guide wheel 2. This guide wheel adjusts the direction of the steel strip to the radial wrapping angle. Subsequently, it enters the third guide wheel 8, which is located in front of and adjacent to the second guide wheel 6. Through precise position adjustment, the winding direction and contact angle of the steel strip are further controlled. The entire guide path, together with the support of the guide rod 3, forms a rigid guide rail structure, ensuring the stability and continuity of the steel strip guiding process.

[0044] The structural components, including disc 1, ring 4, mounting plate 7, and mounting base 5, respectively support each guiding component and are fixed in three-dimensional space by bolts or welding, achieving rigid support and precise layout of the guiding mechanism. Meanwhile, the mounting hole of the third guide wheel 8 adopts an elongated slotted hole design, making the position of the third guide wheel 8 adjustable to meet the adaptation requirements of various steel strip specifications and guide angles.

[0045] With the above structure and layout, the steel strip is always controlled to run throughout the entire feeding and winding path, without path jumping or angle deviation, thereby ensuring the concentricity and stability of the winding process and supporting the process requirements of multiple steel strips being wound simultaneously and running at high speed.

[0046] Instructions for use: The two steel strips pass through the first guide wheel 2, guide rod 3, first guide wheel 2, second guide wheel 6, and third guide wheel 8 in sequence, and then are wound around the cable.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 concentric steel belt armored wrapping reel for a wrapping machine, characterized in that, The device includes a base with a through hole at its center for a cable to pass through. The base is provided with two sets of guide mechanisms that are symmetrical about the through hole at its center. Each guide mechanism is used to support and guide a steel strip.

2. The concentric steel strip armored wrapping disc according to claim 1, characterized in that, The guiding mechanism includes a first guide wheel, a second guide wheel, a third guide wheel, and a guide rod arranged in a circular trajectory with the perforation as the center. The rotation axes of the first guide wheel, the second guide wheel, and the third guide wheel are perpendicular to each other. The rotation axis of the first guide wheel is parallel to the axis of the perforation. The second guide wheel and the third guide wheel are adjacent to each other, and the third guide wheel is located in front of the second guide wheel.

3. The concentric steel strip armored wrapping disc according to claim 2, characterized in that, The base includes a disc and a ring. The perforation is located at the center of the disc. The ring and the disc are concentrically spaced apart. A first guide wheel is rotatably mounted on a first rotating shaft. The first rotating shaft and the guide rod are arranged along the axis of the perforation between the disc and the ring. A mounting plate is also provided between the disc and the ring. The mounting plate is tangent to the circumferential trajectory. A second rotating shaft is provided on its upper end face. The second guide wheel is rotatably mounted on it. In front of the mounting plate, at the front end face of the ring, there is a mounting seat. A third rotating shaft is provided on the mounting seat. The third guide wheel is rotatably mounted on it.

4. The concentric steel strip armored wrapping disc according to claim 2 or 3, characterized in that, There are two first guide wheels and one guide rod, with the guide rod located between the two first guide wheels.

5. The concentric steel strip armored wrapping disc according to claim 3, characterized in that, The mounting base includes a base plate, the rear end face of which is fixedly connected to the front end face of the ring. The front end face of the base plate is provided with two parallel and spaced connecting plates, and the connecting plates are provided with mounting holes. The two ends of the third rotating shaft pass through the mounting holes and are locked by nuts.

6. The concentric steel strip armored wrapping disc according to claim 5, characterized in that, The mounting hole is a long, narrow hole.

7. The concentric steel strip armored wrapping disc according to claim 5, characterized in that, The base plate is connected to the ring bolt and welded to the connecting plate.

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