A steel band rewinding machine for armoured cables

Abstract

The utility model discloses a kind of steel band rewinding machine for armored cable, belong to cable processing device technical field, the rewinding machine includes rack, wire arranging mechanism and take tape mechanism, wire arranging mechanism and take tape mechanism are respectively installed in the front and rear ends of the rack;The wire arranging mechanism includes left and right movement deceleration motor, sliding seat, slide and wire arranging assembly, left and right movement deceleration motor is installed in the front end of the rack, sliding seat is horizontally installed in the side of rack, slide is driven and installed on sliding seat by left and right movement deceleration motor, wire arranging assembly is installed on slide, the wire arranging assembly includes vertical board, guide pulley, wire arranging arm, mounting plate, spring, upper press wheel and lower press wheel.The utility model avoids moving stability problem by fixed take tape disc, prevent steel band to break open using spring buffer's press wheel group, both eliminate security risk and guarantee the compactness of steel band winding.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable processing equipment, specifically relating to a steel strip rewinding machine for armored cables. Background Technology

[0002] Armored cables are a type of cable in which a steel strip is wound around the outside of the cable to form a protective layer using an armoring machine. They possess excellent resistance to mechanical damage and corrosion and are widely used in power, telecommunications, and rail transportation industries. In the processing of armored cables, large coils of steel strip (typically weighing hundreds of kilograms) cannot be directly fed into the armoring machine. Therefore, a steel strip rewinding machine is used to repackage the large coils into smaller, lighter coils before they are fed to the armoring machine for further processing. The core structure of existing steel strip rewinding machines typically includes a take-up reel, a drive mechanism, and a wire arrangement assembly. To achieve uniform winding of the steel strip on the take-up reel, traditional solutions often design the take-up reel as a movable structure, adjusting the winding position of the steel strip by reciprocating its movement. However, the weight of the take-up reel increases significantly after winding the steel strip (small reels typically weigh 50-100 kg). During prolonged reciprocating movement, the support structure of the take-up reel (such as guide rails and bearings) is prone to wear and deformation, causing the take-up reel to wobble. This not only affects the uniformity of the steel strip winding but also shortens the overall service life of the rewinding machine. To address the shortcomings of reel movement, some existing technologies employ a bare rod cable guide at the front end of the reel, using a guide wheel to move left and right to guide the steel strip winding. However, this type of bare rod cable guide has a relatively simple structure, relying solely on a single guide wheel for cable winding. When the large reel of steel strip is almost fully wound (less than 10% remaining), the tension of the steel strip changes abruptly (instantaneous increase or decrease), easily causing the steel strip to detach from the guide wheel and break instantly. On one hand, the broken steel strip has a strong impact force, posing a safety hazard of scratching operators; on the other hand, the broken steel strip can cause the winding layer on the smaller reel of steel strip to become loose and misaligned, affecting the feeding stability of subsequent armoring processes and even leading to uneven protective layer thickness in the armored cable, thus reducing product quality. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a steel strip rewinding machine for armored cables.

[0004] The technical problem solved by this utility model is achieved through the following technical solution: A steel strip rewinding machine for armored cables is characterized by comprising a frame, a cable laying mechanism, and a cable take-up mechanism. The cable laying mechanism and the cable take-up mechanism are respectively installed at the front and rear ends of the frame. The cable laying mechanism includes a left-right moving reduction motor, a slide block, a slide plate, and a cable laying assembly. The left-right moving reduction motor is installed at the front end of the frame, and a slide block is horizontally installed on the side of the frame. A slide plate is installed on the slide block by the left-right moving reduction motor, and a cable laying assembly is installed on the slide plate. The cable laying assembly includes a vertical plate, guide wheels, a cable laying arm, a mounting plate, a spring, an upper pressure wheel, and a lower pressure wheel. Vertical plates are installed opposite each other at the left and right ends of the slide plate. Horizontally arranged guide wheels are evenly distributed between the two vertical plates. A cable laying arm is installed at a lower position between the two vertical plates. A mounting plate is installed on the end of the cable laying arm away from the vertical plate. An upper pressure wheel is installed on the mounting plate by a spring. A lower pressure wheel is installed on the cable laying arm directly below the upper pressure wheel. The take-up mechanism includes a take-up speed reduction motor and a take-up reel, with the take-up reel driven by the take-up speed reduction motor installed at the rear end of the frame.

[0005] Furthermore, it also includes rubber clips, with rubber clips fitted on both sides of the rim of each guide wheel.

[0006] Moreover, the rubber clip is a circular ring structure with a clip opening at one end.

[0007] Furthermore, it also includes a cleaning cloth, which is wrapped around the surfaces of the upper and lower pressure rollers.

[0008] The advantages and positive effects of this utility model are: 1. This steel strip rewinding machine for armored cables, by fixing the take-up reel to the rear end of the frame, achieves uniform cable laying through the left and right movement of the cable laying mechanism. This avoids the self-weight load problem caused by the movement of the take-up reel, reduces wear on the support structure, significantly improves the operational stability of the rewinding machine, and extends the service life of the equipment. The upper and lower pressure rollers, connected by springs, form a clamping channel to elastically compress the steel strip. Even if the tension of the large reel of steel strip changes suddenly later, the buffering effect of the springs can prevent the steel strip from breaking open instantly. At the same time, the rubber blocks on both sides of the guide rollers provide lateral restraint for the steel strip, further preventing the steel strip from detaching from the guide rollers, eliminating the safety hazard of operator cuts, and ensuring the tightness of the small reel of steel strip winding, providing a stable feed for subsequent armoring processing. 2. The steel tape rewinding machine used for armored cables has a cleaning cloth on the surface of the upper and lower pressure rollers that can simultaneously clean surface impurities during the steel tape rewinding process. This prevents impurities from affecting the fit between the steel tape and the cable sheath, improves the product quality of the armored cable, eliminates the need for additional cleaning equipment, simplifies the processing flow, and reduces equipment investment costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the assembly of the rubber block and guide wheel of this utility model; Figure 4 This is a schematic diagram of the structure of the rubber card block of this utility model.

[0010] Explanation of reference numerals in the attached figures 1-Tape take-up reel, 2-Tape take-up geared motor, 3-Upper pressure roller, 4-Mounting plate, 5-Lower pressure roller, 6-Cable arm, 7-Upright plate, 8-Guide roller, 9-Left and right movement geared motor, 10-Slide plate, 11-Frame, 12-Slide seat, 13-Rubber clamp. Detailed Implementation

[0011] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings: An innovative feature of a steel tape rewinding machine for armored cables is that it includes a frame 11, a cable laying mechanism, and a tape take-up mechanism, with the cable laying mechanism and tape take-up mechanism respectively installed at the front and rear ends of the frame.

[0012] The frame, which serves as the supporting foundation for the entire rewinding machine, is made of carbon steel welded together to ensure structural strength. Its front end is used to install the wire laying mechanism, and its rear end is used to install the tape take-up mechanism. The front side of the frame has reserved space for the installation of sliding blocks. The overall layout is reasonable and convenient for operation and maintenance. The cable laying mechanism includes a left-right moving geared motor 9, a slide block 12, a sliding plate 10, and a cable laying assembly. A left-right moving geared motor (RV075-A1 right-20-V5, Superer 1.5KW worm gear reducer frequency converter motor with encoder, three-phase 80VAC, 1500r / min) is installed at the front end of the frame. A slide block (with a linear guide rail) is horizontally installed on the side of the frame. A sliding plate (with a slider at the bottom of the sliding plate adapted to the linear guide rail) is mounted on the slide block via the left-right moving geared motor. Specifically, it is connected via a screw and nut mechanism (the output shaft of the left-right moving geared motor is connected to a screw, which meshes with a nut at the bottom of the sliding plate), enabling the sliding plate to move horizontally back and forth along the slide block, thereby driving the cable laying assembly to move synchronously and complete the cable laying action. To increase the stability of the slide block's movement, a guide rod 11 is also installed on the slide block, and the sliding plate moves left and right along the guide rod. A cable routing assembly is installed on the skateboard, which includes a vertical plate 7, a guide wheel 8, a cable routing arm 6, a mounting plate 4, a spring, an upper pressure wheel 3, and a lower pressure wheel 5. Uprights: Two uprights are fixed to the top of the skateboard to form a support frame for the cable assembly; Guide rollers: At least two guide rollers are evenly distributed between the two vertical plates along the conveying direction of the steel belt. The two ends of the guide rollers are rotatably connected to the vertical plates through bearings. They are used to guide the conveying direction of the steel belt and prevent the steel belt from deviating. Cable arm: Made of aluminum alloy (lightweight and high strength), it is fixed between the two uprights at a lower position, and its extension direction is consistent with the steel belt conveying direction. It is used to install the pressure roller mechanism. Mounting plate: It is vertically fixed to the end of the cable arm away from the upright plate, and its bottom is equipped with a spring mounting seat; Spring: Select a cylindrical helical spring (wire diameter 3-5mm, free length 50-80mm, moderate elastic coefficient), one end is fixed on the spring mounting seat of the mounting plate, and the other end is connected to the wheel axle of the upper pressure wheel to realize the elastic floating of the upper pressure wheel; Upper and lower pressure rollers: The upper pressure roller is connected to a spring via an axle and can float up and down; the lower pressure roller is mounted on the cable arm via an axle and is located directly below the upper pressure roller; the rims of both the upper and lower pressure rollers are made of polyurethane material (wear-resistant and with a certain degree of elasticity). Together, they form a steel strip clamping channel. The elastic force of the spring keeps the upper pressure roller pressed tightly against the lower pressure roller, providing stable clamping for the steel strip. Even if the tension of the steel strip changes, the spring's extension and contraction can provide cushioning, preventing the steel strip from breaking open. The winding mechanism includes a winding geared motor 2 and a winding reel 1. The winding reel, driven by the winding geared motor, is installed at the rear end of the frame. The winding reel (used to hold a small steel strip roll) is rotatably mounted at the rear end of the frame via a bearing seat. The winding reel is driven by the winding geared motor (a geared motor with braking function, such as Y100L-4), which can be connected via chain drive or belt drive (the output shaft of the winding geared motor is connected to the driving sprocket, and the winding reel shaft is connected to the driven sprocket; the two are engaged by a chain), achieving stable rotation of the winding reel and completing the winding of the steel strip.

[0013] To further optimize the technical solution, the present invention also includes the following improvements: Rubber clip 13: Rubber clips (made of nitrile rubber, which is elastic and wear-resistant) are installed on both sides of the rim of each guide wheel. The spacing between the two rubber clips is adapted to the width of the steel belt, forming a lateral limit on the steel belt to prevent the steel belt from shifting left and right on the guide wheel and further prevent the steel belt from detaching from the guide wheel. At the same time, the rubber material has a buffering effect, which can reduce frictional damage between the steel belt and the clips. Rubber clip structure: The rubber clip is designed as a circular ring structure, with its inner hole diameter matching the guide wheel rim diameter, and one end is provided with a clip opening (the opening width is smaller than the guide wheel rim diameter). The rubber clip can be clipped onto the guide wheel through elastic deformation without the need for additional fasteners, making it easy to install and replace. The distance between the two clips can be adjusted according to different widths of steel strips or clips of different thicknesses can be replaced. Cleaning cloth: A cleaning cloth (made of microfiber with strong water and oil absorption capacity) is wrapped around the outer circumference of the upper and lower pressure rollers. When the steel belt passes through the clamping channel between the upper and lower pressure rollers, the cleaning cloth is in close contact with the surface of the steel belt, wiping away dust, oil and other impurities on the surface simultaneously during the steel belt conveying process, thus improving the cleanliness of the steel belt. The cleaning cloth can be quickly removed and replaced when it gets dirty, making maintenance convenient.

[0014] Work process Preparation stage: Place the large steel strip on the unwinding frame on one side of the machine frame, and install the small steel strip reel on the take-up reel; adjust the spacing of the rubber clamps on both sides of the guide wheel according to the width of the steel strip to ensure that the steel strip can be stably conveyed along the guide wheel; check whether the cleaning cloth is intact, and replace it with a new cleaning cloth if it is dirty. Threading stage: Pass the free end of the large steel strip through the gaps between the guide rollers in sequence, then through the clamping channel formed by the upper and lower pressure rollers, and finally fix it on the small steel strip reel; start the left and right movement reduction motor, adjust the slide plate position, and make the steel strip align with the starting winding position of the small reel reel. Rewinding Stage: Simultaneously start the take-up geared motor and the left and right movement geared motors. The take-up reel drives the small reel shaft to rotate, winding the steel strip onto the small reel. The left and right movement geared motor drives the slide plate to move horizontally back and forth along the slide block, guiding the steel strip evenly onto the small reel through the cable laying mechanism. During the process, the elastic force of the spring keeps the upper pressure roller firmly pressing the steel strip, preventing the steel strip from breaking due to tension changes. Simultaneously, a cleaning cloth wipes the surface of the steel strip to remove dust and oil. Shutdown Stage: When the steel strip on the small reel reaches the set weight (e.g., 50kg), turn off the take-up geared motor and the left and right movement geared motors. The electromagnetic brake of the take-up geared motor locks the take-up reel. Cut the steel strip, remove the small reel of steel strip, and complete one rewinding operation.

[0015] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A steel strip rewinding machine for armored cables, characterized in that: The device includes a frame, a cable laying mechanism, and a take-up mechanism. The cable laying mechanism and take-up mechanism are respectively installed at the front and rear ends of the frame. The cable laying mechanism includes a left-right moving reduction motor, a slide, a slide plate, and a cable laying assembly. The left-right moving reduction motor is installed at the front end of the frame. The slide is horizontally installed on the side of the frame. The slide plate is driven by the left-right moving reduction motor to be installed on the slide. The cable laying assembly is installed on the slide plate. The cable laying assembly includes a vertical plate, guide wheels, a cable laying arm, a mounting plate, a spring, an upper pressure wheel, and a lower pressure wheel. The vertical plates are installed opposite each other at the left and right ends of the slide plate. Horizontally arranged guide wheels are evenly distributed between the two vertical plates. The cable laying arm is installed at a lower position between the two vertical plates. The mounting plate is installed at the end of the cable laying arm away from the vertical plate. The upper pressure wheel is installed on the mounting plate by a spring. The lower pressure wheel is installed on the cable laying arm directly below the upper pressure wheel. The take-up mechanism includes a take-up speed reduction motor and a take-up reel, with the take-up reel driven by the take-up speed reduction motor installed at the rear end of the frame.

2. A steel strip rewinding machine for armored cables according to claim 1, characterized in that: It also includes rubber clips, which are installed on both sides of the rim of each guide wheel.

3. A steel tape rewinding machine for armored cables according to claim 2, characterized in that: The rubber clip is a circular ring structure with a clipping opening at one end.

4. A steel strip rewinding machine for armored cables according to claim 1, characterized in that: It also includes a cleaning cloth, which is wrapped around the surfaces of the upper and lower pressure rollers.

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