Metal wire armoring equipment for cable

Abstract

The invention relates to the technical field of cable manufacturing, and discloses a metal wire armoring device for a cable, which comprises a base, and an unwinding mechanism and a stress adjusting mechanism which are arranged on the base, the stress adjusting mechanism comprises a rolling assembly, and the rolling assembly comprises a rolling seat arranged on the base in a sliding mode, a rolling body arranged on the rolling seat in a lifting mode and a first driving module used for driving the rolling seat to do reciprocating rectilinear motion in the direction parallel to the steel wire moving direction. Compared with a traditional fixed rolling wheel mode, the rolling assembly provided by the invention adopts a special circulating and reciprocating rolling mode, and has the advantages that all parts of the steel wire can be rolled more comprehensively, and the situation that stress is eliminated unevenly is avoided. Moreover, in the circulating and reciprocating rolling process, the rolling force and frequency can be flexibly adjusted by controlling the movement speed and frequency of the linear reciprocating driving piece.

Description

Technical Field

[0001] The present invention relates to the technical field of cable manufacturing equipment, and more particularly to a metal wire armoring device for cables. Background Art

[0002] Cables, as crucial carriers of power and information transmission, are often coated with one or more layers of steel wire armor to enhance their mechanical strength, tensile strength, and resistance to external damage (such as compression, impact, and rodent bites). This process is known as wire armoring. The core equipment for wire armoring is the armoring machine. One of its key functions is to steadily and smoothly unwind (unwind) the coiled steel wire and effectively eliminate the internal bending stress incurred during winding and storage, restoring the wire to its natural straightness. The wire is then tightly and evenly wound around the cable sheath. Efficient unwinding and stress relief are prerequisites for ensuring uniform quality, a tight fit, and reliable protective effects of the wire armor.

[0003] However, existing steel wire armoring equipment still has certain shortcomings during actual use. For example, in terms of unwinding, traditional unwinding mechanisms mostly use a fixed wire coil and rely on an independent transverse adjustment mechanism to adapt to changes in the traction position. This structure is not only prone to applying harmful lateral forces to the steel wire during transverse movement, causing damage to the steel wire surface, quality degradation and shortened service life, but also interferes with the stability of the traction force and affects the smoothness of unwinding. At the same time, the traditional transmission roller structure is relatively simple, and its effect on guiding and initial straightening the steel wire is limited. The steel wire is prone to bending, wrinkling and other problems during the unwinding process, resulting in insufficient flatness and straightness, affecting subsequent stress relief and winding uniformity.

[0004] Therefore, there is an urgent need for a steel wire armoring device that can achieve low damage and high stability unwinding. Summary of the Invention

[0005] The object of the present invention is to provide a metal wire armoring device for cables to solve the above-mentioned technical problems.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: The present invention provides a metal wire armoring device for cables, comprising: a base, an unwinding mechanism and a stress adjustment mechanism arranged on the base; The stress adjustment mechanism includes a rolling assembly, which includes: a rolling seat slidably arranged on a base, a rolling body liftably arranged on the rolling seat, a first driving module for driving the rolling seat to perform reciprocating linear motion parallel to the moving direction of the steel wire, and a second driving module for driving the rolling body to perform lifting motion relative to the rolling seat; The rolling assembly is configured to perform a cyclic reciprocating rolling operation on the steel wire that passes straight through the gap between the rolling seat and the rolling body, specifically comprising: The second driving module drives the roller pressing body to descend and contact the steel wire, while the first driving module drives the roller pressing seat and the roller pressing body to move toward the unwinding mechanism for rolling; When the roller pressing seat moves to the preset position, the first driving module drives the roller pressing seat to reset and move in the opposite direction, and at the same time the second driving module drives the roller pressing body to rise and separate from the steel wire, and then reset and start again.

[0007] Preferably, a flat plate with grooves is provided at the bottom of the roller pressing seat, and the roller pressing seat is slidably connected to a guide rod fixedly arranged on the base through its upper part.

[0008] Preferably, the rolling body includes a plurality of linearly evenly distributed vertical rods, and a rolling roller is provided at the bottom end of each vertical rod.

[0009] Preferably, the first drive module and the second drive module are both linear reciprocating drive components, which include a reciprocating motor, two pulleys and a transmission belt wrapped around the two pulleys, the transmission belt is connected to the roller pressing seat or the roller pressing body, and the reciprocating motor drives one of the pulleys to rotate.

[0010] Preferably, the stress adjustment mechanism further includes an auxiliary traction assembly, which includes: a main transmission part for generating a linear driving force on the passing steel wire and a tension adjustment part for generating pressure on the steel wire.

[0011] Preferably, the main transmission part includes: a connecting base fixedly mounted on the base, a transmission motor 1 mounted on the connecting base, a limiting shaft rotatably mounted on the rotating shaft, a limiting shaft located directly below the rotating shaft, and a linear telescopic source for adjusting the height of the limiting shaft. The rotating end of the transmission motor 1 is connected to the rotating shaft through a transmission pulley assembly.

[0012] Preferably, the tension adjustment part includes: a clamping shaft rotatably arranged on the connecting seat and a second transmission motor, the clamping shaft is arranged parallel to the rotating shaft, and is arranged close to the side of the unwinding mechanism, and the rotating end of the second transmission motor is connected to the clamping shaft through a transmission pulley assembly.

[0013] Preferably, the unwinding mechanism includes: a slide rail fixed on the base, a slide frame slidingly arranged on the slide rail, a transmission roller assembly rotatably arranged on the slide frame, and a linear drive assembly for driving the slide frame to slide linearly back and forth along the slide rail.

[0014] Preferably, the linear drive assembly includes: a drive motor installed on one side of the sliding frame, a rolling wheel is fixed to the rotating end of the drive motor, and the rolling wheel is rollingly connected to one side of the slide rail.

[0015] Preferably, the transmission roller assembly includes: a wire roll mounting roller rotatably arranged on the top of the sliding frame, and transmission roller one, transmission roller two, transmission roller three and transmission roller four linearly distributed in sequence at the lower end of the sliding frame.

[0016] The beneficial effects of the present invention are: The rolling assembly provided in the present invention adopts this special cyclic reciprocating rolling method. Compared with the traditional fixed rolling wheel method, its advantage is that it can roll all parts of the steel wire more comprehensively, avoiding the situation of uneven stress relief. The traditional fixed rolling wheel can only apply pressure to the fixed position of the steel wire, while the cyclic reciprocating rolling of the present device can make every part of the steel wire be fully rolled, ensuring the overall stress relief effect of the steel wire. Moreover, during this cyclic reciprocating rolling process, the strength and number of rolling can be flexibly adjusted by controlling the movement speed and frequency of the linear reciprocating drive. For steel wires of different materials and diameters, personalized stress relief treatment can be performed according to actual needs, which improves the versatility and adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a metal wire armoring device for cables provided by the present invention; Figure 2 This is a structural schematic diagram of an unwinding mechanism in a metal wire armoring device for a cable provided by the present invention; Figure 3 It is a side view of a stress adjustment mechanism in a metal wire armoring device for a cable provided by the present invention; Figure 4 This is a structural schematic diagram of a stress adjustment mechanism in a metal wire armoring device for a cable provided by the present invention; Figure 5 This is a structural schematic diagram of an auxiliary traction component in a metal wire armoring device for a cable provided by the present invention; Figure 6 It is a structural schematic diagram of a rolling assembly in a metal wire armoring device for cables provided by the present invention.

[0018] In the figure: 100, base; 200, unwinding mechanism; 201, slide rail; 202, sliding frame; 203, driving motor; 204, rolling wheel; 205, mounting roller; 206, transmission roller 1; 207, transmission roller 2; 208, transmission roller 3; 209, leveling plate; 210, transmission roller 4; 211, unwinding motor; 300, stress adjustment mechanism; 301, connecting seat; 302, transmission motor 1; 30 3. Rotating shaft; 304. Limiting shaft; 305. Linear telescopic source; 306. Pressing shaft; 307. Transmission motor 2; 308. Rolling seat; 3081. Flat plate; 309. Rolling body; 3091. Vertical rod; 3092. Rolling roller; 310. Linear reciprocating drive element; 3101. Reciprocating motor; 3102. Pulley; 3103. Transmission belt; 311. Guide rod; 312. Transmission pulley assembly. DETAILED DESCRIPTION

[0019] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0020] Please refer to Figure 1 A metal wire armoring device for a cable includes a base 100, a reeling mechanism 200, and a stress adjustment mechanism 300. Both the reeling mechanism 200 and the stress adjustment mechanism 300 are mounted on the base 100. The reeling mechanism 200 is primarily used to stably lengthen the wire coil, while the stress adjustment mechanism 300 is used to eliminate stress within the lengthened wire, restoring it to its natural straight state for subsequent smooth winding around the cable.

[0021] For more details, please refer to Figures 1 to 3 The unwinding mechanism 200 includes a slide rail 201 fixed on the base 100, a sliding frame 202 slidingly arranged on the slide rail 201, a transmission roller assembly rotatably arranged on the sliding frame 202, and a linear drive assembly for driving the sliding frame 202 to slide linearly along the slide rail 201. The transmission roller assembly includes a wire roll mounting portion and a wire expansion portion.

[0022] The linear drive assembly includes a drive motor 203 mounted on one side of the sliding frame 202 . A rolling wheel 204 is fixed to the rotating end of the drive motor 203 . The rolling wheel 204 is in rolling connection with one side of the slide rail 201 .

[0023] When the linear drive assembly is in use, the drive motor 203 rotates, causing the rolling wheel 204 to roll linearly along one side of the slide rail 201, thereby causing the entire sliding frame 202 to slide linearly along the slide rail 201. By driving the motor 203 in both positive and negative directions, the sliding frame 202 can be made to reciprocate linearly on the slide rail 201. When unwinding the wire, the sliding frame 202 can adapt to the reciprocating sliding of the sliding frame 202, so that the unwound wire portion is in a straight line, facilitating subsequent stress adjustment operations. Moreover, compared to the traditional double-grooved screw method, this drive method reduces resistance during movement through the rolling of the rolling wheel 204. At the same time, the lateral movement accuracy is easier to control because it is not limited by the screw groove, thus better adapting to different wire coil types.

[0024] The transmission roller assembly includes a wire roll mounting roller 205 rotatably arranged on the top of the sliding frame 202, a transmission roller 1 206, a transmission roller 207, a transmission roller 3 208 and a transmission roller 4 210 linearly distributed at the lower end of the sliding frame in sequence; and a reeling motor 211 connected to the rotating end of the mounting roller 205 is installed on the sliding frame 202, and the transmission roller 1 206 is located at the lower right side of the mounting roller 205 and consists of a roller; the transmission roller 207 consists of two rollers arranged side by side with a gap, and is located below the mounting roller 205; the transmission roller 3 208 consists of a mounting frame, a large roller, a small roller and a flattening plate 209, and the mounting frame is fixedly mounted on the sliding frame 202, and the large roller and the small roller are rotatably mounted at the lower and upper ends of the mounting frame respectively, and the flattening plate 209 is arranged close to the small roller, and one side of it is close to the outer side of the small roller, and some gaps are retained; the transmission roller 4 210 consists of a roller and is located on the left side of the mounting roller 205.

[0025] When unwinding the steel wire, it first passes through drive roller 1 206, then through the gap between the two rollers of drive roller 2 207, then passes from below the large roller of drive roller 3 208, through the gap between the small roller and the flattening plate 209, and finally passes from above drive roller 4 210. The unwinding motor 211 rotates, causing the mounting roller 205 to drive the steel wire to lengthen. Under the action of external traction, the steel wire passes sequentially through drive roller 1 206, drive roller 2 207, drive roller 3 208, and drive roller 4 210. The coordinated traction of multiple drive rollers allows the steel wire to unwind rapidly. In particular, as the steel wire passes through drive roller 3 208, the flattening plate 209, through sliding contact with the steel wire, exerts a compressive force on it, deforming the steel wire and reducing its degree of bending. This drive roller assembly, through its special drive roller structure, effectively solves problems such as bending and wrinkling that can easily occur during the unwinding process, ensuring the flatness and straightness of the steel wire during the unwinding process.

[0026] In summary, the unwinding mechanism 200 provided by the present invention, when performing the unwinding operation, uses the linear drive assembly to drive the sliding frame 202 to perform linear reciprocating motion together with the wire roll, allowing the wire roll to adapt to changes in the lateral position of the unwinding end, thereby ensuring that the wire roll moves in a relatively stable straight line. Compared with the traditional equipment that only uses a transverse adjustment mechanism to fix the wire roll, the present invention eliminates the lateral force generated by the transverse adjustment mechanism during transverse movement. This not only reduces damage to the wire, improves the quality and service life of the wire, but also reduces the impact on the traction force of the wire, making the unwinding of the wire smoother. At the same time, the transmission roller assembly, with multiple specially constructed transmission rollers, cooperates with each other to ensure the flatness and linearity of the wire during unwinding, prevents bending, wrinkling, etc., and makes the traction force on the wire more balanced during the unwinding process, further enhancing the stability and reliability of the unwinding.

[0027] Please refer to Figure 1 、 Figures 4 to 6 The stress adjustment mechanism 300 includes an auxiliary traction assembly for assisting the linear movement of the traction steel wire and a rolling assembly for producing a rolling effect on the steel wire. The auxiliary traction assembly includes a main transmission unit and a tension adjustment unit. The main transmission unit includes a connecting base 301 fixedly mounted on the base 100, a transmission motor 1 302 mounted on the connecting base 301, a limit shaft 304 rotatably mounted on a rotating shaft 303 and located directly below the rotating shaft 303, and a linear telescopic source 305 for adjusting the height of the limit shaft 304. The rotating end of the transmission motor 1 302 is connected to the rotating shaft 303 through a transmission pulley assembly 312. The linear telescopic source 305 can be an electric push rod, whose telescopic end is connected to the limit shaft 304. By driving the limit shaft 304 up and down, the gap between the limit shaft 304 and the rotating shaft 303 is adjusted to accommodate steel wires of different diameters. The tension adjustment part includes a clamping shaft 306 rotatably arranged on the connecting seat 301 and a transmission motor 2 307. The clamping shaft 306 is arranged parallel to the rotating shaft 303 and is arranged close to the side of the unwinding mechanism 200. The rotating end of the transmission motor 2 307 is connected to the clamping shaft 306 through a transmission pulley assembly 312.

[0028] The use process of the auxiliary traction component is that the steel wire first passes through the bottom of the clamping shaft 306, and then passes through the gap between the limiting shaft 304 and the rotating shaft 303. The linear telescopic source 305 is extended and retracted to drive the limiting shaft 304 to rise and fall, so that the limiting shaft 304 presses the steel wire tightly. The transmission motor 2 307 is rotated to drive the clamping shaft 306 to swing, so as to adjust the downward pressure of the steel wire and change the tension of the steel wire. After the auxiliary traction component is adjusted to match the steel wire, the transmission motor 1 302 is rotated to drive the rotating shaft 303 to rotate, thereby assisting in driving the steel wire to move linearly.

[0029] The rolling assembly includes a rolling seat 308 slidably mounted on the base 100, a rolling body 309 slidably mounted on the rolling seat 308, a first drive module for driving the rolling seat 308 to perform reciprocating linear motion parallel to the direction of wire movement, and a second drive module for driving the rolling body 309 to perform lifting motion relative to the rolling seat 308. The first drive module is mounted on the base 100 and is in a transmission connection with the rolling seat 308. The second drive module is mounted on the rolling seat 308 and is in a transmission connection with the rolling body 309. The rolling seat 308 is an L-shaped structure with a flat plate 3081 with a groove fixed to its bottom. A transverse guide rod 311 is provided on the base 100. The upper end of the rolling seat 308 is slidably connected to the guide rod 311 to enhance the stability of the rolling seat 308 during linear movement. The roller pressing body 309 is composed of a number of linearly and evenly distributed vertical rods 3091. The bottom end of each vertical rod 3091 is equipped with a rolling roller 3092 that adapts to the groove. The second drive module / second drive module is a linear reciprocating drive member 310, which includes a reciprocating motor 3101, two pulleys 3102, and a transmission belt 3103. The two pulleys 3102 are connected by a transmission belt 3103. The rotating end of the reciprocating motor 3101 is fixed to one of the pulleys 3102, and the transmission belt 3103 is connected to the roller pressing seat 308 / rolling body 309 via a flange. The rotation of the reciprocating motor 3101 causes the transmission belt 3103 to move linearly, thereby driving the roller pressing seat 308 / rolling body 309 to move linearly. The linear reciprocating motion of the roller pressing seat 308 / rolling body 309 is achieved by controlling the rotation direction of the reciprocating motor 3101.

[0030] When the above-mentioned rolling assembly is in use, the steel wire must pass straight through the gap between the groove of the flat plate 3081 and the rolling body 309. The linear reciprocating drive 310 on the rolling seat 308 drives the rolling body 309 up and down so that it can contact the steel wire. During the rolling process, the linear reciprocating drive 310 on the base 100 pushes the rolling seat 308 and the rolling body 309 to slide linearly toward the auxiliary traction assembly. At this time, the rolling wheels in the rolling body 309 roll the steel wire. When the rolling seat 308 moves to its maximum displacement, the linear reciprocating drive 310 on the base 100 begins to drive the rolling seat 308 to reset; at the same time, the linear reciprocating drive 310 on the rolling seat 308 drives the rolling body 309 to move upward, temporarily separating from the steel wire. After the roller press seat 308 is fully reset, the linear reciprocating drive 310 on the base 100 drives the roller press body 309 downward again, re-engaging the wire. The linear reciprocating drive 310 on the base 100 then continues to push the roller press seat 308 toward the auxiliary traction assembly. This reciprocating process rapidly completes the wire rolling process, quickly eliminating stress within the unwound wire. This stress-relieved wire, when subsequently wound by the winding equipment, can closely adhere to the cable's exterior, meeting high-precision armoring requirements and eliminating subsequent adjustments.

[0031] The rolling assembly provided in the present invention adopts this special cyclic reciprocating rolling method. Compared with the traditional fixed rolling wheel method, its advantage is that it can roll all parts of the steel wire more comprehensively, avoiding the situation of uneven stress relief. The traditional fixed rolling wheel can only apply pressure to the fixed position of the steel wire, while the cyclic reciprocating rolling of the present device can make every part of the steel wire be fully rolled, ensuring the overall stress relief effect of the steel wire. Moreover, during this cyclic reciprocating rolling process, the strength and number of rolling can be flexibly adjusted by controlling the movement speed and frequency of the linear reciprocating drive 310. For steel wires of different materials and diameters, personalized stress relief treatment can be performed according to actual needs, which improves the versatility and adaptability of the equipment.

[0032] Furthermore, during the rolling process, because the rolling body 309 is in dynamic contact with the steel wire, the friction between the rolling wheel and the steel wire is more evenly distributed, reducing the risk of surface damage to the steel wire due to excessive local friction. This helps improve the surface quality of the steel wire, allowing it to better fit the cable when subsequently wound around it, thereby enhancing the quality and performance of the cable armor.

[0033] The stress adjustment mechanism 300 of this device features a compact overall structure, with coordinated coordination between its various components, achieving efficient stress relief within a limited space. Furthermore, the device is relatively simple to operate. By controlling components such as the linear expansion source 305, the drive motor, and the reciprocating motor 3101, a series of operations, including wire pulling, tension adjustment, and rolling, can be performed, reducing operator workload and improving production efficiency.

[0034] The above describes the embodiments of the present invention, but the present invention is not limited to the above specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms under the guidance of the present invention, all of which are protected by the present invention.

Claims

1. A metal wire armoring device for a cable, characterized in that: include: A base, an unwinding mechanism and a stress adjustment mechanism arranged on the base; The stress adjustment mechanism includes a rolling assembly, which includes: a rolling seat slidably arranged on a base, a rolling body liftably arranged on the rolling seat, a first driving module for driving the rolling seat to perform reciprocating linear motion parallel to the moving direction of the steel wire, and a second driving module for driving the rolling body to perform lifting motion relative to the rolling seat; The rolling assembly is configured to perform a cyclic reciprocating rolling operation on the steel wire that passes straight through the gap between the rolling seat and the rolling body, specifically comprising: The second driving module drives the roller pressing body to descend and contact the steel wire, while the first driving module drives the roller pressing seat and the roller pressing body to move toward the unwinding mechanism for rolling; When the roller pressing seat moves to the preset position, the first driving module drives the roller pressing seat to reset and move in the opposite direction, and at the same time the second driving module drives the roller pressing body to rise and separate from the steel wire, and then reset and start again.

2. A metal wire armoring device for cables according to claim 1, characterized in that: A flat plate with grooves is provided at the bottom of the roller pressing seat, and the roller pressing seat is slidably connected with a guide rod fixedly arranged on the base through the upper part thereof.

3. A metal wire armoring device for cables according to claim 1, characterized in that: The rolling body includes a plurality of vertical rods that are evenly distributed linearly, and a rolling roller is provided at the bottom end of each vertical rod.

4. A metal wire armoring device for cables according to claim 1, characterized in that: The first drive module and the second drive module are both linear reciprocating drive components, which include a reciprocating motor, two pulleys and a transmission belt wrapped around the two pulleys. The transmission belt is connected to the roller pressing seat or the roller pressing body, and the reciprocating motor drives one of the pulleys to rotate.

5. The metal wire armoring device for cables according to claim 1, characterized in that: The stress adjustment mechanism further includes an auxiliary traction assembly, which includes a main transmission part for generating a linear driving force on the passing steel wire and a tension adjustment part for generating pressure on the steel wire.

6. A metal wire armoring device for cables according to claim 5, characterized in that: The main transmission part includes: a connecting base fixedly mounted on the base, a transmission motor 1 mounted on the connecting base, a limiting shaft rotatably mounted on the rotating shaft, a limiting shaft located directly below the rotating shaft, and a linear telescopic source for adjusting the height of the limiting shaft. The rotating end of the transmission motor 1 is connected to the rotating shaft through a transmission pulley assembly.

7. A metal wire armoring device for cables according to claim 6, characterized in that: The tension adjustment part includes: a clamping shaft rotatably arranged on the connecting seat and a second transmission motor. The clamping shaft is arranged parallel to the rotating shaft and is arranged close to the side of the unwinding mechanism. The rotating end of the second transmission motor is connected to the clamping shaft through a transmission pulley assembly.

8. The metal wire armoring device for cables according to claim 1, characterized in that: The unwinding mechanism includes: a slide rail fixed on a base, a slide frame slidingly arranged on the slide rail, a transmission roller assembly rotatably arranged on the slide frame, and a linear drive assembly for driving the slide frame to slide linearly back and forth along the slide rail.

9. The metal wire armoring device for cables according to claim 8, characterized in that: The linear drive assembly includes a drive motor installed on one side of the sliding frame, a rolling wheel is fixed to the rotating end of the drive motor, and the rolling wheel is rollingly connected with one side of the slide rail.

10. The metal wire armoring device for cables according to claim 8, characterized in that: The transmission roller assembly includes: a wire coil installation roller rotatably arranged on the top of the sliding frame, and a transmission roller 1, a transmission roller 2, a transmission roller 3 and a transmission roller 4 linearly distributed in sequence at the lower end of the sliding frame.

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