Low-smoke halogen-free flame-retardant cable production equipment

Abstract

The utility model discloses a low smoke zero halogen flame retardant cable production equipment, including cable, cable wrapping machine, feed hopper, cooling subassembly and shock absorption subassembly, the cable passes through the cable wrapping machine, the feed hopper is fixedly installed on the upper end of the cable wrapping machine, the cooling subassembly is arranged on the side wall of the cable wrapping machine, and the shock absorption subassembly is arranged on the side wall of the cable wrapping machine. The feeding hopper is arranged for feeding, the cable sequentially comprises the conductor, the low-smoke halogen-free layer, the glass fiber layer, the protection buffer layer and the insulation shielding layer from inside to outside, the main material of the low-smoke halogen-free layer is low-smoke halogen-free flame-retardant oxygen-isolating material, the main material of the glass fiber layer is low-smoke halogen-free flame-retardant oxygen-isolating material, and the main material of the glass fiber layer is low-smoke halogen-free flame-retardant oxygen-isolating material. The halogen hydride gas is not generated during combustion, the flame retardance is high, the release of harmful gas can be effectively reduced, and the cable has the characteristics of high practicability and high cooling speed of the insulation shielding layer.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, specifically to a low-smoke halogen-free flame-retardant cable production equipment. Background Technology

[0002] A cable is an electrical or signal transmission device, typically composed of several or groups of conductors. Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and so on. They are all composed of single or multiple strands of conductors and insulation layers. The optoelectronic cable industry, as a crucial foundational industry of the national economy, has products widely used in various sectors, providing essential support for industries, national defense, and major construction projects. They are also indispensable necessities in people's daily lives. With economic development and frequent electrical fire accidents, the research and use of flame-retardant cables have gained attention. Currently, small and medium-sized wire and cable factories in China can produce general flame-retardant wire and cable products. However, with increasing awareness of safety and reliability, many wire and cable users have raised requirements for the flame-retardant and fire-resistant properties of products. In the existing cable production process, the cooling rate of the outer insulation layer is slow, affecting cable production efficiency. Therefore, it is necessary to design a low-smoke halogen-free flame-retardant cable production equipment with strong practicality and fast insulation shielding layer cooling. Utility Model Content

[0003] The purpose of this invention is to provide a low-smoke, halogen-free flame-retardant cable production equipment to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a low-smoke halogen-free flame-retardant cable production equipment, including a cable, a cable wrapping machine, a feeding hopper, a cooling assembly, and a shock-absorbing assembly. The cable passes through the cable wrapping machine, the feeding hopper is fixedly installed on the upper end of the cable wrapping machine, the cooling assembly is disposed on the side wall of the cable wrapping machine, and the shock-absorbing assembly consists of two pairs symmetrically arranged at the lower end of the cable wrapping machine. The cooling assembly includes a cooling box, a first filter plate, an air intake fan, a cooling plate, an insulating plate, and a second filter plate. A cooling chamber is formed in the middle of the cooling box, and the cooling... The cooling chamber has a cable port running through it from front to back, through which the cable passes. An air inlet and an air outlet are located at opposite ends of the cooling chamber, respectively, and are connected to the cooling chamber via connecting pipes. An air inlet is located at the top of the air inlet. The air inlet contains the first filter plate, the air intake fan, and the cooling plate, arranged from top to bottom. An isolation plate is fixedly installed in the air outlet. A second filter plate is located at the end of the isolation plate furthest from the cooling chamber. An air outlet is located at the top of the air outlet, at the upper end of the second filter plate.

[0005] According to the above technical solution, the shock absorption assembly includes a support block, a lifting seat, a damper, a shock absorption spring, and a shock absorption base. The upper end of the shock absorption base is provided with a shock absorption groove. The damper and the shock absorption spring are fixedly installed in the shock absorption groove. The shock absorption spring is sleeved on the outside of the damper. The lifting seat is fixedly installed on the upper end of the damper, and the lifting seat is fixedly installed on the lower end of the support block.

[0006] According to the above technical solution, the lifting seat is symmetrically fixedly installed with limit blocks, the shock absorption groove is symmetrically opened with limit grooves, and the limit blocks are movably installed in the corresponding limit grooves.

[0007] According to the above technical solution, a first filter screen and a second filter screen are fixedly installed in the first filter plate and the second filter plate, respectively. A first handle plate and a second handle plate are fixedly installed at one end of the first filter plate and the second filter plate, respectively. The first handle plate and the second handle plate are embedded in the cooling box, and the air intake fan and the cooling plate are fixedly installed in the air intake cavity, respectively. A first handle groove and a second handle groove are respectively opened at one end of the first handle plate and the second handle plate.

[0008] According to the above technical solution, the cable, from the inside out, includes a conductor, a low-smoke halogen-free layer, a glass fiber layer, a protective buffer layer, and an insulating shielding layer.

[0009] According to the above technical solution, a water exchange pipe is fixedly installed at one end of the air outlet chamber, and a control valve is fixedly installed on the water exchange pipe.

[0010] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model uses a feeding hopper for feeding. The cable, from the inside out, includes a conductor, a low-smoke halogen-free layer, a fiberglass layer, a protective buffer layer, and an insulating shield layer. The main material of the low-smoke halogen-free layer is a low-smoke halogen-free flame-retardant oxygen-barrier material, which does not produce hydrogen halide gas during combustion and has high flame retardancy, effectively reducing the release of harmful gases. The fiberglass layer can increase the cable's insulation, heat resistance, and corrosion resistance. The main material of the protective buffer layer is an aramid fiber composite material, which has strong tensile strength and can effectively prevent the cable from being pulled apart. The insulating shield layer is made of polyolefin material, increasing the cable's electrical insulation. After the cable is wrapped, it is cooled by a cooling assembly and air is introduced through an air inlet. External air is filtered by a first filter plate to prevent impurities in the external air from adhering to the cable and affecting its quality. An air intake fan accelerates the air intake, and the airflow is circulated by a cooling plate. The cooling system allows cold air to enter the cooling chamber through a connecting pipe, cooling the cable's insulation shielding layer and accelerating its cooling speed, thus increasing cable production efficiency. After cooling, the air enters the exhaust chamber through the connecting pipe. The exhaust chamber contains water, and an insulating plate extends underwater to ensure the water purifies the air flowing through. The water in the exhaust chamber can be periodically replaced via a water exchange pipe, which can be controlled by a control valve. The air then passes through the second filter plate before being discharged, preventing air pollution and protecting the surrounding environment. The combined use of support blocks, lifting seats, dampers, shock-absorbing springs, and shock-absorbing seats reduces vibrations during cable wrapping, effectively protecting internal electrical components and extending their lifespan. The first and second handles allow for easy removal of the first and second filter plates for cleaning and replacement. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This is a front view schematic diagram of the present invention;

[0013] Figure 2 This is a right-side sectional view of the cooling box of this utility model;

[0014] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of point A in the middle;

[0015] Figure 4 This is a three-dimensional schematic diagram of the cooling box of this utility model;

[0016] In the diagram: 1-Cable, 11-Conductor, 12-Low smoke halogen-free layer, 13-Fiberglass layer, 14-Protective buffer layer, 15-Insulating shielding layer, 2-Cable wrapping machine, 3-Feed hopper, 4-Cooling assembly, 41-Cooling box, 411-Cooling chamber, 412-Cable port, 413-Air inlet chamber, 414-Air outlet chamber, 415-Connecting pipe, 416-Air inlet, 417-Air outlet, 42-First filter plate, 421-First filter screen, 422- 423-First handle plate, 43-Intake fan, 44-Refrigeration plate, 45-Insulation plate, 46-Second filter plate, 461-Second filter screen, 462-Second handle plate, 463-Second handle groove, 47-Water replacement pipe, 48-Control valve, 5-Shock absorption assembly, 51-Support block, 52-Lifting seat, 521-Limit block, 53-Damper, 54-Shock absorption spring, 55-Shock absorption seat, 551-Shock absorption groove, 552-Limit groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a technical solution: a low-smoke halogen-free flame-retardant cable production equipment, including a cable 1, a cable wrapping machine 2, a feeding hopper 3, a cooling assembly 4, and a shock-absorbing assembly 5. The cable 1 passes through the cable wrapping machine 2. The feeding hopper 3 is fixedly installed on the upper end of the cable wrapping machine 2. The cooling assembly 4 is disposed on the side wall of the cable wrapping machine 2. The number of shock-absorbing assemblies 5 is two pairs and symmetrically arranged at the lower end of the cable wrapping machine 2. The cooling assembly 4 includes a cooling box 41, a first filter plate 42, an air intake fan 43, a cooling plate 44, an insulating plate 45, and a second filter plate 46. A cooling chamber 411 is located in the middle of the cooling box 41, and a cable port 412 extends through the cooling chamber 411 from front to back. The cable 1 passes through the cable port 412. An air inlet chamber 413 and an air outlet chamber 414 are respectively located at both ends of the cooling chamber 411 inside the cooling box 41. The air inlet chamber 413 and the air outlet chamber 414 are respectively connected to the cooling chamber 411 via connecting pipes 415. An air inlet 416 extends through the upper end of the air inlet chamber 413. The first filter plate 42, the air intake fan 43, and the cooling plate 44 are respectively arranged from top to bottom inside the air inlet chamber 413. The insulating plate 45 is fixedly installed inside the air outlet cavity 414. A second filter plate 46 is provided at the end of the insulating plate 45 away from the cooling cavity 411. An air outlet 417 is provided through the upper end of the air outlet cavity 414 and above the second filter plate 46. In use, during the cable wrapping machine 2 wrapping the cable 1, material is fed through the feed hopper 3. After the cable 1 is wrapped, it is cooled by the cooling assembly 4, and air is introduced through the air inlet 416. External air is filtered by the first filter plate 42 to prevent impurities in the external air from adhering to the cable 1 and affecting its electrical properties. The quality of cable 1 is improved by the intake fan 43 accelerating the intake of air, which is then cooled by the cooling plate 44. The cold air enters the cooling box 41 through the connecting pipe 415 to cool the insulation shielding layer 15 of cable 1, thereby accelerating the cooling speed of the insulation shielding layer 15 and increasing the production efficiency of cable 1. After cooling, the air enters the exhaust chamber 414 through the connecting pipe 415. The exhaust chamber 414 contains water, and the isolation plate 45 extends underwater to ensure that the water can purify the air flowing through it. The air then passes through the second filter plate 46 and is discharged, preventing air pollution and protecting the surrounding environment.

[0019] Specifically, the shock absorption assembly 5 includes a support block 51, a lifting seat 52, a damper 53, a shock absorption spring 54, and a shock absorption seat 55. The upper end of the shock absorption seat 55 has a shock absorption groove 551. The damper 53 and the shock absorption spring 54 are fixedly installed in the shock absorption groove 551. The shock absorption spring 54 is sleeved on the outside of the damper 53. The lifting seat 52 is fixedly installed on the upper end of the damper 53 and the lifting seat 52 is fixedly installed on the lower end of the support block 51. Through the coordinated use of the support block 51, the lifting seat 52, the damper 53, the shock absorption spring 54, and the shock absorption seat 55, the cable wrapping machine 2 can reduce the vibration generated during operation, effectively protect the internal electrical components, and extend their service life.

[0020] Specifically, the lifting seat 52 is symmetrically fixedly installed with limit blocks 521, and the shock absorption groove 551 is symmetrically opened with limit grooves 552. The limit blocks 521 are movably installed in the corresponding limit grooves 552. Through the cooperation of the limit blocks 521 and the limit grooves 552, the lifting seat 52 can be limited when moving up and down.

[0021] Specifically, a first filter screen 421 and a second filter screen 461 are fixedly installed inside the first filter plate 42 and the second filter plate 46, respectively. A first handle plate 422 and a second handle plate 462 are fixedly installed at one end of the first filter plate 42 and the second filter plate 46, respectively. The first handle plate 422 and the second handle plate 462 are respectively embedded in the cooling box 41. The air intake fan 43 and the cooling plate 44 are respectively fixedly installed in the air intake cavity 413. A first handle groove 423 and a second handle groove 463 are respectively opened at one end of the first handle plate 422 and the second handle plate 462. The first filter plate 42 and the second filter plate 46 can be easily pulled out through the first handle plate 422 and the second handle plate 462 to clean and replace the first filter screen 421 and the second filter screen 461 inside.

[0022] Specifically, the cable 1 comprises, from the inside out, a conductor 11, a low-smoke halogen-free layer 12, a fiberglass layer 13, a protective buffer layer 14, and an insulating shield layer 15. The low-smoke halogen-free layer 12 is mainly made of low-smoke halogen-free flame-retardant oxygen-barrier material, which does not produce hydrogen halide gas when burning and has high flame retardancy, effectively reducing the release of harmful gases. The fiberglass layer 13 can increase the insulation, heat resistance, and corrosion resistance of the cable 1. The protective buffer layer 14 is mainly made of aramid fiber composite material, which has strong tensile strength and can effectively prevent the cable from being pulled apart. The insulating shield layer 15 is made of polyolefin material, which increases the electrical insulation of the cable 1.

[0023] Specifically, a water exchange pipe 47 is fixedly installed at one end of the air outlet chamber 414, and a control valve 48 is fixedly installed on the water exchange pipe 47. The water inside the air outlet chamber 414 can be replaced periodically through the water exchange pipe 47, and the opening and closing of the water exchange pipe 47 can be controlled by the control valve 48.

[0024] Working Principle: In use, the cable wrapping machine 2 feeds the cable 1 through the feed hopper 3 during the wrapping process. The cable 1, from the inside out, comprises a conductor 11, a low-smoke halogen-free layer 12, a fiberglass layer 13, a protective buffer layer 14, and an insulating shielding layer 15. The low-smoke halogen-free layer 12 is primarily made of low-smoke halogen-free flame-retardant oxygen-barrier material, which does not produce hydrogen halide gas during combustion and has high flame retardancy, effectively reducing the release of harmful gases. The fiberglass layer 13 increases the insulation, heat resistance, and corrosion resistance of the cable 1, providing protection. The buffer layer 14 is mainly made of aramid fiber composite material, which has high tensile strength and can effectively prevent the cable from being pulled apart. The insulating shielding layer 15 is made of polyolefin material, which increases the electrical insulation of the cable 1. After the cable 1 is wrapped, it is cooled by the cooling component 4 and air is introduced through the air inlet 416. The external air is filtered by the first filter plate 42 to prevent impurities in the external air from adhering to the cable 1 and affecting its quality. The intake fan 43 accelerates the air intake and the cooling plate 44 cools the air flowing through it. The cold air passes through the continuous... The connecting pipe 415 enters the cooling box 41 to cool the insulation shielding layer 15 of the cable 1, accelerating the cooling speed of the insulation shielding layer 15 and increasing the production efficiency of the cable 1. After cooling, the air enters the air outlet chamber 414 through the connecting pipe 415. The air outlet chamber 414 contains water, and the insulating plate 45 extends underwater to ensure that the water can purify the flowing air. The water in the air outlet chamber 414 can be replaced periodically through the water replacement pipe 47. The opening and closing of the water replacement pipe 47 can be controlled by the control valve 48. Then, the flowing air passes through the second filter plate 4. The filtered material 6 is discharged, preventing air pollution and protecting the surrounding environment. Through the combined use of support block 51, lifting seat 52, damper 53, shock-absorbing spring 54 and shock-absorbing seat 55, the cable wrapping machine 2 can reduce the vibration generated during operation, effectively protecting the internal electrical parts and extending their service life. The first handle plate 42 and the second handle plate 462 can be easily pulled out to clean and replace the internal first filter screen 421 and second filter screen 461.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-smoke halogen-free flame-retardant cable production equipment, comprising a cable (1), a cable wrapping machine (2), a feeding hopper (3), a cooling assembly (4), and a shock-absorbing assembly (5), characterized in that: The cable (1) passes through the cable wrapping machine (2), the feed hopper (3) is fixedly installed on the upper end of the cable wrapping machine (2), the cooling assembly (4) is set on the side wall of the cable wrapping machine (2), the number of the shock absorption assembly (5) is two pairs and symmetrically arranged at the lower end of the cable wrapping machine (2), the cooling assembly (4) includes a cooling box (41), a first filter plate (42), an air intake fan (43), a cooling plate (44), an isolation plate (45) and a second filter plate (46), a cooling chamber (411) is opened in the middle of the cooling box (41), and a cable port (412) is opened through the cooling chamber (411) from front to back. The cable (1) passes through the cable port (412), and the cable (1) is located in the cooling box (41) and in the cooling chamber (412). 11) An air inlet chamber (413) and an air outlet chamber (414) are respectively provided at both ends. The air inlet chamber (413) and the air outlet chamber (414) are connected to the cooling chamber (411) through a connecting pipe (415). An air inlet (416) is provided through the upper end of the air inlet chamber (413). The first filter plate (42), the air intake fan (43), and the cooling plate (44) are respectively provided from top to bottom in the air inlet chamber (413). The isolation plate (45) is fixedly installed in the air outlet chamber (414). The second filter plate (46) is provided at the end of the isolation plate (45) away from the cooling chamber (411). An air outlet (417) is provided through the upper end of the air outlet chamber (414) and located at the upper end of the second filter plate (46).

2. The low-smoke halogen-free flame-retardant cable production equipment according to claim 1, characterized in that: The damping assembly (5) includes a support block (51), a lifting seat (52), a damper (53), a damping spring (54), and a damping seat (55). The upper end of the damping seat (55) is provided with a damping groove (551). The damper (53) and the damping spring (54) are fixedly installed in the damping groove (551). The damping spring (54) is sleeved on the outside of the damper (53). The lifting seat (52) is fixedly installed on the upper end of the damper (53), and the lifting seat (52) is fixedly installed on the lower end of the support block (51).

3. The low-smoke halogen-free flame-retardant cable production equipment according to claim 2, characterized in that: The lifting seat (52) is symmetrically fixedly installed with a limiting block (521), and the shock absorption groove (551) is symmetrically opened with a limiting groove (552). The limiting block (521) is movably installed in the corresponding limiting groove (552).

4. The low-smoke halogen-free flame-retardant cable production equipment according to claim 3, characterized in that: A first filter screen (421) and a second filter screen (461) are fixedly installed in the first filter plate (42) and the second filter plate (46), respectively. A first handle plate (422) and a second handle plate (462) are fixedly installed at one end of the first filter plate (42) and the second filter plate (46), respectively. The first handle plate (422) and the second handle plate (462) are embedded in the cooling box (41), and the air intake fan (43) and the cooling plate (44) are fixedly installed in the air intake cavity (413), respectively. A first handle groove (423) and a second handle groove (463) are respectively opened at one end of the first handle plate (422) and the second handle plate (462).

5. The low-smoke halogen-free flame-retardant cable production equipment according to claim 4, characterized in that: The cable (1) comprises, from the inside out, a conductor (11), a low-smoke halogen-free layer (12), a glass fiber layer (13), a protective buffer layer (14), and an insulating shielding layer (15).

6. The low-smoke halogen-free flame-retardant cable production equipment according to claim 5, characterized in that: A water exchange pipe (47) is fixedly installed at one end of the air outlet chamber (414), and a control valve (48) is fixedly installed on the water exchange pipe (47).

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