Large diameter steel cord fusing device
By designing a fusing device suitable for large-diameter steel cords, a fast and safe fusing process is achieved by utilizing a movable pressure handle and an arc groove structure. This solves the problems of low fusing efficiency and poor safety of large-diameter steel cords in existing technologies, and improves operational efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN KEYU ELECTRIC APPLIANCES
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, handheld fusing devices cannot effectively fuse large-diameter steel cords, which is time-consuming, labor-intensive, difficult to operate, and poses safety hazards. The cut is uneven, affecting work efficiency and safety.
A large-diameter steel cord fusing device was designed. The device uses a movable pressure hand to clamp the steel cord between the pressure head and the conductive clamping block by generating pressure through a tension spring. Arc grooves are set on the conductive clamping block and the pressure head to focus the current density. A spark protection cover is also provided to achieve a fast and safe fusing process.
It enables rapid melting and cutting of large-diameter steel cord, improves work efficiency, ensures a clean and safe cut, avoids injury to workers from high-temperature molten metal slag and sparks, and enhances operational safety and melting effect.
Smart Images

Figure CN224373154U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel cord manufacturing technology, specifically to a large-diameter steel cord fusing device. Background Technology
[0002] Steel cord is a structure composed of two or more steel wires, or a combination of strands or wires. Steel cord is mainly used as a reinforcing material for passenger car tires, light truck tires, heavy-duty truck tires, construction machinery tires, aircraft tires, and other rubber products. When a steel cord winding machine is full, a fuse is needed to cut the steel wires.
[0003] The existing method for fusing steel cord after the coil is full mainly involves manual hand-held fusing devices. However, hand-held fuses have the following drawbacks in use:
[0004] This method is only applicable to the melting of small-diameter (below 2mm) steel cords, and is not applicable to large-diameter (such as steel cords above 2mm).
[0005] It requires a lot of manpower, is time-consuming and labor-intensive, has low work efficiency, and operators need to have certain skills, otherwise the melting efficiency will be low and the cut will be uneven.
[0006] The high-temperature molten metal slag and sparks generated during the melting process can cause injury to workers. Utility Model Content
[0007] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a large-diameter steel cord fusing device, suitable for fusing large-diameter steel cords with a diameter of 2mm or more. The movable pressure hand generates downward pressure through a tension spring, driving the pressure head to press down and clamp the steel cord to be fused between the pressure head and the conductive clamping block, realizing rapid clamping of the steel cord to be fused. Each fusing takes only 3 seconds. Its innovative feature is the setting of arc grooves on the conductive clamping block and the pressure head, which enhances the current density focusing on the fusing point of the steel cord. The cut is flat, so that the head of the large-diameter steel cord does not deform after fusing. The arc groove design makes the steel cord clamped between the pressure head and the conductive clamping block more conductive during fusing, resulting in a better fusing effect.
[0008] The purpose of this utility model is achieved as follows:
[0009] A large-diameter steel cord fusing device includes a frame box, a fusing transformer box, and a fuse clamp. The fusing transformer box, which houses the fusing transformer, is positioned above the frame box. A fuse clamp is installed on the top of the fusing transformer box. The fuse clamp includes a mounting base plate, conductive seats, movable handles, pressure heads, and conductive clamping blocks. Two conductive seats are symmetrically arranged on the mounting base plate, which is fixed to the top plate of the fusing transformer box. A movable handle is hinged to the inner side of each conductive seat. The front end of the movable handle is connected to the pressure head. A conductive clamping block is provided on the conductive seat corresponding to the pressure head. A tension spring is connected to the movable handle, and the other end of the tension spring is fixed to the inner side of the corresponding conductive seat.
[0010] Preferably, a pressure limiter is provided below the rear end of the movable pressure hand, the pressure limiter is fixed on the corresponding conductive base, and a limiting protrusion is provided at the rear end of the movable pressure hand corresponding to the pressure limiter.
[0011] Preferably, the movable pressure hand is hinged to the conductive seat via a pivot pin, the connection point between the tension spring and the movable pressure hand is located before the pivot pin, and the connection point between the tension spring and the conductive seat is located after the pivot pin, so that the two ends of the tension spring and the pivot pin form a triangular structure.
[0012] Preferably, each of the two conductive clamps arranged on the left and right is provided with multiple arc placement grooves of different specifications, and the pressure head paired with the conductive clamps is provided with an arc pressure groove corresponding to the arc placement groove.
[0013] Preferably, a current setting controller for setting the fuse current is installed on the side door of the rack enclosure.
[0014] Preferably, the fuse holder is equipped with a spark protection cover.
[0015] Preferably, the spark protection cover includes a horizontal cover plate and a cover plate seat. The cover plate seat is fixed to the top of the fuse transformer box and located in front of the fuse clamp. The top of the cover plate seat is hinged to the horizontal cover plate, and the horizontal cover plate is positioned above the fuse clamp.
[0016] Preferably, the rack enclosure is equipped with a power switch and a power inlet socket.
[0017] Preferably, the bottom of the rack housing is provided with protective beams at the four corners, and each protective beam is equipped with casters.
[0018] Preferably, the top of the rack housing is also provided with ear-shaped handrails.
[0019] The beneficial effects of this utility model are:
[0020] Suitable for fusing large-diameter steel cords with a diameter of 2mm or more, this fuse clamp is positioned at the top, eliminating the need for handheld equipment, saving time and effort, and increasing work efficiency. The movable pressure handle generates downward pressure through a tension spring, driving the pressure head down to press the steel cord to be fused between the pressure head and the conductive clamp, achieving rapid clamping of the steel cord to be fused. Each fusing takes only 3 seconds. Its innovative design features arc grooves on the conductive clamp and pressure head, enhancing the current density focusing on the fusing point of the steel cord. The cut is smooth, preventing deformation of the large-diameter steel cord head after fusing. The arc groove design also improves the conductivity of the steel cord clamped between the pressure head and the conductive clamp during fusing, resulting in a better fusing effect. At the same time, the fuse clamp is equipped with a spark protection cover to improve the safety of the fusing environment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of a large-diameter steel cord fusing device according to the present invention.
[0022] Figure 2 for Figure 1 A magnified view of a portion of the image.
[0023] Figure 3 This is a schematic diagram of the fuse clamp.
[0024] Figure 4 This is the main view of the conductive base on the right side during assembly.
[0025] The components include: 1. Rack housing; 2. Fuse transformer housing; 3. Fuse clamp; 3.1. Mounting base plate; 3.2. Movable pressure handle; 3.3. Pressure head; 3.4. Arc pressure groove; 3.4.1. Conductive clamp block; 3.5. Arc placement groove; 3.5.1. Pressure handle limiter; 3.6. Limiting protrusion; 3.6.1. Rotary shaft pin; 3.7. Tension spring; 3.8. Current setting controller; 4. Spark protection cover; 5. Horizontal cover plate; 5.1. Cover plate seat; 5.2. Power switch; 6. Power inlet socket; 7. Protective beam; 8. Casters; 9. Ear-shaped handrail; 10. Detailed Implementation
[0026] See Figure 1-4This utility model relates to a large-diameter steel cord fusing device, including a frame box 1, a fusing transformer box 2, a fuse clamp 3, a current setting controller 4, and a spark protection cover 5. The fusing transformer box 2, with a built-in fusing transformer, is located above the frame box 1. The fuse clamp 3 is installed on the top of the fusing transformer box 2, and the fuse clamp 3 is covered by the spark protection cover 5. The current setting controller 4 for setting the fusing current is installed on the side door of the frame box 1. The fuse clamp 3 includes a mounting base plate 3.1. The system comprises a conductive base 3.2, a movable pressure handle 3.3, a pressure head 3.4, a conductive clamping block 3.5, a pressure handle limiter 3.6, and a tension spring 3.8. Two conductive bases 3.2 are symmetrically arranged on a mounting base plate 3.1, which is fixed to the top plate of the fuse transformer box 2. A movable pressure handle 3.3 is hinged to the inner side of each conductive base 3.2. The front end of the movable pressure handle 3.3 is connected to the pressure head 3.4. A conductive clamping block 3.5 is provided on each conductive base 3.2 corresponding to the pressure head 3.4, and the conductive clamping block 3.5 is fixed by screws. A gap is left between the two conductive clamping blocks 3.5 on the conductive base 3.2. The pressure hand limiting 3.6 is located below the rear side of the movable pressure hand 3.3. The pressure hand limiting 3.6 is fixed on the corresponding conductive base 3.2. The pressure hand limiting 3.6 has a limiting protrusion 3.6.1 at the rear end of the movable pressure hand 3.3. The movable pressure hand 3.3 is hinged to the conductive base 3.2 by a pivot pin 3.7. The movable pressure hand 3.3 is also connected to a tension spring 3.8, which is located inside the conductive base 3.2. The connection between the tension spring 3.8 and the movable pressure handle 3.3 is located before the pivot pin 3.7. The other end of the tension spring 3.8 is fixed on the corresponding conductive seat 3.2. The connection between the tension spring 3.8 and the conductive seat 3.2 is located after the pivot pin 3.7. Thus, the two ends of the tension spring 3.8 and the pivot pin 3.7 form a triangular structure. The movable pressure handle 3.3 generates downward pressure through the tension spring 3.8, which drives the pressure head 3.4 to press down, pressing the steel cord to be melted between the pressure head 3.4 and the conductive clamp 3.5, thereby pressing the steel cord.
[0027] Depending on the specifications of the steel cord, each of the two conductive clamps 3.5 on the left and right sides has multiple arc-shaped placement grooves 3.5.1 of different specifications. The pressure head 3.4 paired with the conductive clamps 3.5 has an arc-shaped pressure groove 3.4.1 corresponding to the arc-shaped placement groove 3.5.1, which is used to accommodate steel cords of different specifications. The steel cord to be melted is limited between the arc-shaped placement groove 3.5.1 and the arc-shaped pressure groove 3.4.1. The current density is focused on the melting point of the steel cord, and the cut is flat, so that the head of the large-diameter steel cord does not deform after melting. The heads of the melted steel cord are fused together, not loose, and the work efficiency is greatly improved.
[0028] The spark protection cover 5 includes a horizontal cover plate 5.1 and a cover plate seat 5.2. The cover plate seat 5.1 is fixed to the top of the fuse transformer box 2 and is located in front of the fuse clamp 3. The top of the cover plate seat 5.1 is hinged to the horizontal cover plate 5.1, and the horizontal cover plate 5.1 is positioned above the fuse clamp 3.
[0029] The rack enclosure 1 is equipped with a power switch 6 and a power inlet socket 7.
[0030] The rack housing 1 has protective beams 8 at the four corners of its bottom, and each protective beam 8 is equipped with casters 9 to facilitate the movement of the equipment. The protective beams 8 provide anti-collision protection for the equipment and prevent damage to the edges and corners of the equipment. At the same time, they can also enhance the mechanical strength of the four corners of the bottom of the rack housing, making the movement safe and stable.
[0031] The top of the frame box 1 is also symmetrically provided with ear-shaped handles 10, which facilitates the overall pushing of the equipment.
[0032] Working principle:
[0033] Press down the movable handles 3.3 on the left and right sides, place the steel cord to be melted into the arc placement groove of the conductive clamps on the left and right sides, release the movable handles, the tension spring returns to its original position, and use the tension of the tension spring to press the steel cord to be melted to prevent the steel cord from shaking. The steel cord acts as a conductor, connecting the two conductive clamps on the left and right sides. Press the fuse control button (the fuse button is located on the side of the fuse transformer box). The preset fuse parameters output a low voltage and a large current through the fuse transformer to the two conductive seats on the left and right sides, so that the left and right conductive clamps are energized, the circuit is connected, and the steel cord clamped in the left and right conductive clamps is quickly melted.
[0034] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.
Claims
1. A large-diameter steel cord fusing device, characterized in that: The device includes a frame housing, a fuse transformer housing, and a fuse clamp. The fuse transformer housing, which houses the fuse transformer, is positioned above the frame housing. A fuse clamp is installed on the top of the fuse transformer housing. The fuse clamp includes a mounting base plate, conductive seats, movable handles, pressure heads, and conductive clamping blocks. Two conductive seats are symmetrically arranged on the mounting base plate, which is fixed to the top plate of the fuse transformer housing. A movable handle is hinged to the inner side of each conductive seat. The front end of the movable handle is connected to the pressure head. A conductive clamping block is provided on the conductive seat corresponding to the pressure head. A tension spring is connected to the movable handle, and the other end of the tension spring is fixed to the inner side of the corresponding conductive seat.
2. The large-diameter steel cord fusing device according to claim 1, characterized in that: The movable presser is provided with a presser limiter at the lower rear end. The presser limiter is fixed on the corresponding conductive base, and the presser limiter is provided with a limit protrusion at the rear end of the movable presser.
3. The large-diameter steel cord fusing device according to claim 1, characterized in that: The movable pressure hand is hinged to the conductive base via a pivot pin. The connection between the tension spring and the movable pressure hand is located before the pivot pin, and the connection between the tension spring and the conductive base is located after the pivot pin. Thus, the two ends of the tension spring and the pivot pin form a triangular structure.
4. The large-diameter steel cord fusing device according to claim 1, characterized in that: The two conductive clamps on the left and right are each provided with multiple arc placement slots of different specifications, and the pressure head that is paired with the conductive clamps is provided with an arc pressure groove corresponding to the arc placement slot.
5. The large-diameter steel cord fusing device according to claim 1, characterized in that: The side door of the rack enclosure is equipped with a current setting controller for setting the fuse current.
6. The large-diameter steel cord fusing device according to claim 1, characterized in that: The fuse holder is equipped with a spark protection cover.
7. The large-diameter steel cord fusing device according to claim 6, characterized in that: The spark protection cover includes a horizontal cover plate and a cover plate seat. The cover plate seat is fixed to the top of the fuse transformer box and is located in front of the fuse clamp. The horizontal cover plate is hinged to the top of the cover plate seat and is positioned above the fuse clamp.
8. The large-diameter steel cord fusing device according to claim 1, characterized in that: The rack enclosure is equipped with a power switch and a power inlet socket.
9. The large-diameter steel cord fusing device according to claim 1, characterized in that: The bottom of the rack housing has protective beams at the four corners, and each protective beam is equipped with casters.
10. A large-diameter steel cord fusing device according to claim 1, characterized in that: The top of the rack enclosure is also equipped with ear-shaped handrails.