Cable shielding layer processing mechanism

Abstract

The utility model belongs to a cable shielding layer processing mechanism in the technical field of cable production. The base (7) is provided with a belt releasing disc (2), a straightening wheel (3), a wrapping belt wheel set (14) and a guide roller (9), the belt releasing disc (2) is located at the position, close to one end, of the surface of one side of the base (7), the straightening wheel (3) and the wrapping belt wheel set (14) are located at the position, close to the other end, of the surface of the same side, where the belt releasing disc (2) is arranged, of the base (7), the straightening wheel (3) is close to the wrapping belt wheel set (14), and the guide roller (9) is located on the side face of one side of the base (7). The cable shielding layer processing mechanism provided by the utility model is simple in structure, convenient to operate, capable of guaranteeing the tape releasing stability of the shielding tape, suitable for production of cables of various models and sizes, and capable of improving the cable processing quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable production, and more specifically, relates to a cable shielding layer processing mechanism. Background Art

[0002] The shielding layer processing methods for cables primarily fall into three categories: winding, longitudinal wrapping, and drag wrapping. Small-sized shielded cables are stranded using double-pitch stranding machines. Since the shielding layer is often made of aluminum foil tape, a drag wrapping method is used to maximize the efficiency of double-pitch stranding. This method uses a drag wrapping mechanism installed between the payout frame and the stranding machine. Key to ensuring shield quality using the drag wrapping method is the requirement for stable tension in the aluminum foil tape and for preventing it from flipping during the payout process. However, the various drag wrapping devices currently in use have proven to be less than ideal in practice, failing to strike a balance between stability, operability, and cost-effectiveness.

[0003] In the prior art, there is a technology named "an automatic shielding layer covering device for cable processing" and the publication number is "CN117275843A". The technology relates to the field of cable processing technology and discloses an automatic shielding layer covering device for cable processing, including a cable transmission mechanism, through which the cable moves on the assembly line for processing, a base plate is installed on the front side of the cable transmission mechanism, a covering disc is rotatably installed on the upper side of the base plate, a covering roller is provided on the back side of the covering disc, and a shielding layer tape is provided on the covering disc. The coating disc has holes, a gluing mechanism is provided on the front side of the coating disc, and a drive motor is mounted on the upper side of the base plate, which drives the coating disc to rotate. The gluing mechanism includes a glue insulation box mounted on the side wall of the coating disc and a glue-applying cotton roller rotatably mounted on the glue insulation box. The glue-applying cotton roller is provided with several liquid extraction plates for facilitating the glue-applying cotton roller to extract glue in a centrifugal state. The inner wall of the glue insulation box is provided with an annular track groove that guides the liquid extraction plates to extend and retract to extract liquid. The gluing mechanism can continuously apply glue to the shielding tape, making the shielding tape more conformable during winding. This technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the shortcomings of the existing technology, a cable shielding layer processing mechanism is provided which has a simple structure, is easy to operate, ensures the stability of the shielding tape release, is suitable for the production of cables of various models and sizes, and improves the cable processing quality.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The utility model is a cable shielding layer processing mechanism, wherein a tape reel, a straightening wheel, a covering pulley group and a guide roller are installed on a base, the tape reel is located on a surface of one side of the base near one end, the straightening wheel and the covering pulley group are located on the same side surface of the base where the tape reel is provided near the other end, the straightening wheel is close to the covering pulley group, and the guide roller is located on the side surface of one side of the base.

[0007] A motor is fixedly mounted on the other side surface of the base, and a motor shaft is connected to the tape reel.

[0008] The covered pulley group includes a first pulley, a second pulley, a third pulley and a flat belt. The first pulley, the second pulley and the third pulley are arranged in a triangle. The flat belt is mounted on the first pulley, the second pulley and the third pulley. The second pulley is an adjustable tensioning pulley.

[0009] The straightening wheel extends between the first pulley and the third pulley, the straightening wheel is pressed against the flat belt, and the flat belt is in a recessed structure at the position where the straightening wheel is fitted.

[0010] The base is located on the side between the stranding machine and the pay-off machine.

[0011] The tape reel is configured to release the shielding tape, and the shielding tape is configured to pass between the straightening wheel and the flat belt and then pass around the guide wheel. The shielding tape passing around the guide wheel is configured to be wound around the cable core wire.

[0012] The reel includes a locking nut, a reel shaft, a first baffle, a mechanical tension component, and a second baffle; the reel shaft is movably connected to the base through a bearing, the second baffle is fixedly sleeved on the reel shaft, the aluminum foil tape is sleeved on the reel shaft, and the first baffle is sleeved on the reel shaft.

[0013] The mechanical tension component includes an adjusting screw, a spring, and a push pin. The push pin passes through the hole groove on the base and rests on the second baffle. The adjusting screw is screwed and connected to the threaded part of the hole groove. The spring is located inside the hole groove and the spring is clamped between the adjusting screw and the push pin.

[0014] The shielding tape is an aluminum foil tape.

[0015] The technical solution of this utility model is adopted, and the working principle and beneficial effects are as follows:

[0016] The cable shielding layer processing mechanism described in the utility model has an upper surface of the base facing upward, and a tape reel, a straightening wheel, a wrapping pulley assembly, and a guide roller are installed on the upper surface of the base. The tape reel is used to release the shielding tape, and the straightening wheel cooperates with the wrapping pulley assembly to straighten the shielding tape. The guide roller tape reel is located on one side surface of the base near one end, and the guide roller is used to guide the straightened shielding tape and then reliably wrap it onto the surface of the cable core. The straightening wheel and the wrapping pulley assembly are located on the same side surface of the base where the tape reel is located near the other end, which facilitates the coordinated operation of the straightening wheel and the wrapping pulley assembly. When the straightening wheel is close to the wrapping pulley assembly, the straightening wheel applies force to the flat belt, and the flat belt has a wrapping force on the straightening wheel, which reliably adjusts the flattening force of the aluminum foil tape and ensures the flatness of the aluminum foil. The guide roller is located on the side of one side of the base, and the guide roller guides the shielding tape to the cable core. When carrying out the towing operation, the working principle and process are as follows: 1) Install the aluminum foil belt to the pay-off reel, drag the aluminum foil belt, and let the aluminum foil belt pass through the area between the flat belt and the straightening wheel on the wrapped pulley group, then pass around the guide roller, and be wrapped and fixed on the surface of the cable core wire; 2) Start the towing equipment, the stranding machine and the pay-off machine start to work synchronously, and multiple cable core wires begin to be twisted after passing through the core wire guide roller group under the action of the stranding machine (double-pitch stranding machine); the aluminum foil belt wrapped and fixed on the surface of the cable core wire also participates in the twisting as part, and follows the twist pitch of the cable core wire and is synchronously wrapped around the surface of the twisted core wire to form a shielding layer; 3) By adjusting the position of the second pulley, the wrapping force of the flat belt on the straightening wheel is adjusted, that is, the flattening force of the aluminum foil belt is adjusted to ensure the flatness of the aluminum foil. At the same time, the resistance formed by the flat belt can play a buffering role in the unwinding, especially during the speed increase and decrease of the towing equipment, the aluminum foil belt always moves smoothly before passing around the guide roller without flipping, effectively ensuring the stability of the unwinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following is a brief description of the contents and symbols in the drawings of this specification:

[0018] Figure 1 This is a structural diagram of the cable shielding layer processing mechanism of the present utility model;

[0019] Figure 2 This is a structural diagram of the cable shielding layer processing mechanism of the present utility model;

[0020] The marks in the accompanying drawings are: 1—shielding tape; 2—pay-off reel; 3—straightening wheel; 4, 6, 10—pulleys; 5—flat belt; 7—base; 8—double-pitch stranding machine; 9—guide roller; 11—pay-off machine; 12—core wire guide roller group; 13—cable core wire; 14—covered pulley group; 15—; 16—; 17—; 18—; 21—locking nut; 22—reel shaft; 23—first baffle; 24—mechanical tension component; 25—second baffle. DETAILED DESCRIPTION

[0021] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connections of the various components involved, the functions and working principles of the various components, etc., by referring to the accompanying drawings.

[0022] As attached Figure 1 , Attachment Figure 2As shown, the utility model is a cable shielding layer processing mechanism, wherein a base 7 is mounted with a tape reel 2, a straightening wheel 3, a wrapping pulley assembly 14, and a guide roller 9. The tape reel 2 is located on a side surface of the base 7 near one end, the straightening wheel 3 and the wrapping pulley assembly 14 are located on the same side surface of the base 7 as the tape reel 2, near the other end, the straightening wheel 3 is close to the wrapping pulley assembly 14, and the guide roller 9 is located on a side surface of the base 7. The above structure proposes an improved technical solution to address the shortcomings of the existing technology. When the structure is set up, the base 7 is set up with the upper surface of the base 7 facing upward. The tape reel 2, the straightening wheel 3, the wrapping pulley assembly 14, and the guide roller 9 are mounted on the upper surface of the base 7. The tape reel 2 is used to pay out the shielding tape 1. The straightening wheel 3 cooperates with the wrapping pulley assembly 14 to straighten the shielding tape 1. The guide roller 9 is located on a side surface of the base 7 near one end, and the guide roller 9 is used to guide the straightened shielding tape 1 so that it can be reliably wound onto the surface of the cable core 13. The straightening wheel 3 and the wrapping pulley assembly 14 are located on the same side of the base 7 as the tape reel 2, near the other end, facilitating their coordinated operation. The straightening wheel 3's proximity to the wrapping pulley assembly 14 allows the straightening wheel to exert force on the flat belt. The flat belt 5 provides wrapping force on the straightening wheel 3, reliably regulating the flattening force of the aluminum foil strip and ensuring its smoothness. A guide roller 9, located on one side of the base 7, guides the shielding tape 1 toward the cable core 13. When carrying out the bag dragging operation, the working principle and process are as follows: 1) Install the aluminum foil tape 1 to the tape reel 2, drag the aluminum foil tape 1, and the aluminum foil tape 1 passes through the area between the flat belt 5 and the straightening wheel 3 on the wrapped pulley group 14, then passes around the guide roller 9, and is wound and fixed on the surface of the cable core 13; 2) Start the bag dragging equipment, the stranding machine 8 and the pay-off machine 11 start to work synchronously, and the multiple cable cores 13 are twisted after passing through the core guide roller group 12 under the action of the stranding machine (double-pitch stranding machine) 8; the aluminum foil tape wrapped and fixed on the surface of the cable core 13 1) It also participates in the twisting process as a part, following the twist pitch of the cable core wire 13 and synchronously wrapping around the surface of the twisted core wire 13 to form a shielding layer; 3) By adjusting the position of the second pulley 6, the flat belt 5 adjusts the wrapping force of the straightening wheel 3, that is, the flattening force of the aluminum foil tape is adjusted to ensure the flatness of the aluminum foil. At the same time, the resistance formed by the flat belt can act as a buffer for unwinding the tape. In particular, during the speed increase and decrease of the towing equipment, the aluminum foil tape 1 always moves smoothly and does not flip before passing around the guide roller 9, ensuring the stability of the unwinding. The cable shielding layer processing mechanism described in the utility model has a simple structure, convenient operation, ensures the stability of the shielding tape unwinding, is applicable to the production of cables of various models and sizes, and improves the quality of cable processing.

[0023] A motor is fixedly mounted on the other side surface of the base 7 , and the motor shaft is connected to the tape reel 2 .

[0024] The wrapped pulley assembly 14 includes a first pulley 4, a second pulley 6, a third pulley 10, and a flat belt 5. The first pulley 4, the second pulley 6, and the third pulley 10 are arranged in a triangle. The flat belt 5 is mounted on the first pulley 4, the second pulley 6, and the third pulley 10. The second pulley 6 is an adjustable tensioner. With this structure, the position of the second pulley 6 can be fine-tuned. Adjusting the position of the second pulley 6 adjusts the wrapping force of the flat belt 5 on the straightening pulley 3, that is, adjusts the flattening force of the aluminum foil strip to ensure the flatness of the aluminum foil. At the same time, the resistance formed by the flat belt can act as a buffer for the unwinding of the strip, effectively ensuring the stability of the unwinding, especially during the speed increase or decrease of the equipment.

[0025] The straightening wheel 3 extends between the first pulley 4 and the third pulley 10, pressing against the flat belt 5. The flat belt 5 is recessed where it fits against the straightening wheel 3. With this structure, the straightening wheel applies force to the flat belt, exerting a planar force on the shielding belt, ensuring reliable flatness.

[0026] The base 7 is located on the side between the stranding machine 8 and the pay-off machine 11. A core wire guide roller group is set between the stranding machine 8 and the pay-off machine 11, including two core wire guide rollers. The cable core wire passes through the gap between the two core wire guide rollers, which reliably guides the cable core wire.

[0027] The tape reel 2 is configured to be able to release the shielding tape 1, and the shielding tape 1 is configured to be able to pass between the straightening wheel 3 and the flat belt 5, and then pass around the guide wheel 9. The shielding tape 1 that passes around the guide wheel 9 is configured to be able to be wound around the cable core 13. In the above structure, the guide roller 9 is configured to be a structure with adjustable position and angle to adapt to different drag bag pitches. The aluminum foil tape 1 always moves smoothly and does not flip over before passing the guide roller 9. The guide wheel can be connected to one end of the guide rod, and the other end of the guide rod can be movably connected to the base, and the base and the guide rod are connected by a telescopic cylinder. The telescopic cylinder is extended and retracted to adjust the position and angle of the guide roller 9, thereby meeting the requirements of shielding layer processing for different cable cores.

[0028] The reel 2 comprises a locking nut 21, a reel shaft 22, a first baffle 23, a mechanical tension member 24, and a second baffle 25. The reel shaft 22 is movably connected to the base 7 via a bearing, and the second baffle 25 is fixedly attached to the reel shaft 22. The aluminum foil strip 1 is fitted onto the reel shaft 22, and the first baffle 23 is also fitted onto the reel shaft 22. With this structure, when the shielding strip 1 needs to be replaced, the locking nut 21 and first baffle 23 are removed, and the reel core of the used aluminum foil strip 1 is removed. A new aluminum foil strip 1 is then installed on the reel core, followed by the first baffle 23 and locking nut 21.

[0029] The mechanical tension member 24 comprises an adjusting screw 15, a spring 16, and a push pin 17. The push pin 17 passes through a slot 18 in the base 7 and rests against the second baffle 25. The adjusting screw 15 is threadedly connected to the threaded portion of the slot 18. The spring 16 is located within the slot 18 and is sandwiched between the adjusting screw 15 and the push pin 17. This structure allows the rotational resistance applied to the payout reel 2 to be varied by adjusting the mechanical tension member 24, thereby accommodating the payout speed control of aluminum foil strips 1 of varying widths, thicknesses, and weights, and improving smoothness.

[0030] The shielding tape 1 is an aluminum foil tape. In the above structure, the shielding tape 1 is preferably an aluminum foil tape.

[0031] The cable shielding layer processing mechanism described in the present invention has an upper surface of the base 7 facing upward, and is equipped with a tape reel 2, a straightening wheel 3, a wrapping pulley assembly 14, and a guide roller 9. The tape reel 2 is used to release the shielding tape 1, and the straightening wheel 3 cooperates with the wrapping pulley assembly 14 to straighten the shielding tape 1. The guide roller 9 is located on one side surface of the base 7 near one end. The guide roller 9 is used to guide the straightened shielding tape 1 and then reliably wrap it around the surface of the cable core 13. The straightening wheel 3 and the wrapping pulley assembly 14 are located on the same side surface of the base 7 as the tape reel 2, near the other end, to facilitate the coordinated operation of the straightening wheel 3 and the wrapping pulley assembly 14. When the straightening wheel 3 is close to the wrapping pulley assembly 14, the straightening wheel 3 applies force to the flat belt 5. The flat belt 5 has a wrapping force on the straightening wheel 3, which reliably adjusts the flattening force of the shielding tape (aluminum foil tape) 1 to ensure the flatness of the aluminum foil. The guide roller 9 is located on one side of the base 7, and the guide roller 9 guides the shielding tape 1 to the cable core 13. When performing the dragging operation, the working principle and process are as follows: 1) Install the aluminum foil tape 1 to the tape reel 2, drag the aluminum foil tape 1, and the aluminum foil tape 1 passes through the area between the flat belt 5 and the straightening wheel 3 on the wrapped pulley group 14, and then passes around the guide roller 9, and is wound and fixed on the surface of the cable core 13; 2) Start the dragging equipment, the stranding machine 8 and the pay-off machine 11 start to work synchronously, and multiple cable cores 13 are twisted after passing through the core guide roller group 12 under the action of the stranding machine (double-pitch stranding machine) 8; the aluminum foil tape 1 is wound and fixed on the surface of the cable core 13, It also participates in the twisting as a part, follows the twist pitch of the cable core wire 13, and is synchronously wound around the surface of the twisted core wire 13 to form a shielding layer; 3) By adjusting the position of the second pulley 6, the wrapping force of the flat belt 5 on the straightening wheel 3 is adjusted, that is, the flattening force of the aluminum foil belt is adjusted to ensure the flatness of the aluminum foil. At the same time, the resistance formed by the flat belt can play a buffering role in unwinding the belt, especially in the process of speeding up and down the towing equipment, the aluminum foil belt 1 always moves smoothly before passing around the guide roller 9 without flipping, which effectively ensures the stability of the unwinding.

[0032] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A cable shielding layer processing mechanism, characterized by: A tape unwinding reel (2), a straightening wheel (3), a covering pulley group (14), and a guide roller (9) are installed on the base (7). The tape unwinding reel (2) is located on a surface of one side of the base (7) near one end, the straightening wheel (3) and the covering pulley group (14) are located on a surface of the same side of the base (7) where the tape unwinding reel (2) is located near the other end, the straightening wheel (3) is close to the covering pulley group (14), and the guide roller (9) is located on a side surface of one side of the base (7).

2. The cable shielding layer processing mechanism according to claim 1, characterized in that: A motor is fixedly mounted on the other side surface of the base (7), and the motor shaft is connected to the tape reel (2).

3. The cable shielding layer processing mechanism according to claim 1 or 2, characterized in that: The covered pulley group (14) comprises a first pulley (4), a second pulley (6), a third pulley (10), and a flat belt (5). The first pulley (4), the second pulley (6), and the third pulley (10) are arranged in a triangle. The flat belt (5) is mounted on the first pulley (4), the second pulley (6), and the third pulley (10). The second pulley (6) is an adjustable tensioning pulley.

4. The cable shielding layer processing mechanism according to claim 3, characterized in that: The straightening wheel (3) extends between the first pulley (4) and the third pulley (10), and the straightening wheel (3) is pressed against the flat belt (5), and the flat belt (5) is in a recessed structure at the position where it fits the straightening wheel (3).

5. The cable shielding layer processing mechanism according to claim 1 or 2, characterized in that: The base (7) is located on the side between the stranding machine (8) and the pay-off machine (11).

6. The cable shielding layer processing mechanism according to claim 1 or 2, characterized in that: The tape reel (2) is configured to be capable of releasing the shielding tape (1), and the shielding tape (1) is configured to be capable of passing between the straightening wheel (3) and the flat belt (5), and then passing around the guide wheel (9).

7. The cable shielding layer processing mechanism according to claim 6, characterized in that: The shielding tape (1) passing around the guide wheel (9) is configured to be capable of being wound around the cable core wire (13).

8. The cable shielding layer processing mechanism according to claim 1 or 2, characterized in that: The tape reel (2) comprises a locking nut (21), a tape reel shaft (22), a first baffle (23), a mechanical tension component (24), and a second baffle (25); the tape reel shaft (22) is movably connected to the base (7) through a bearing, the second baffle (25) is fixedly sleeved on the tape reel shaft (22), the aluminum foil tape (1) is sleeved on the tape reel shaft (22), and the first baffle (23) is sleeved on the tape reel shaft (22).

9. The cable shielding layer processing mechanism according to claim 8, characterized in that: The mechanical tension component (24) includes an adjusting screw (15), a spring (16), and a push pin (17). The push pin (17) passes through a hole groove (18) on the base (7) and rests on the second baffle (25). The adjusting screw (15) is screwed and connected to the threaded portion of the hole groove (18). The spring (16) is located inside the hole groove (18) and is clamped between the adjusting screw (15) and the push pin (17).

10. The cable shielding layer processing mechanism according to claim 1 or 2, characterized in that: The shielding tape (1) is an aluminum foil tape.

Images