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CN-224210496-U - Multi-layer coextrusion production equipment for fire-resistant flame-retardant wires and cables

CN224210496UCN 224210496 UCN224210496 UCN 224210496UCN-224210496-U

Abstract

The utility model relates to a cable processing technology field, an embodiment of the present disclosure provides a multilayer coextrusion production facility of fire-resistant fire-retardant wire and cable, and it includes the extruder, and the upper end of extruder is provided with the feeding cover, and ejection of compact screening subassembly sets up the one end at the extruder, drops and accomodates the subassembly setting in the extruder lower extreme, and the bore of screening mouth is less than the bore of dropping the mouth. Through the technical scheme, when the traditional wire and cable production equipment in the prior art is used for multi-layer coextrusion production of fire-resistant flame-retardant wires and cables, a plurality of defects are exposed, in the raw material extrusion process, the extrusion amount and extrusion speed of each layer of materials are difficult to precisely control, the thickness of each layer is uneven, the overall performance of the product is affected, meanwhile, in the screening process, a high-efficiency and precise screening mechanism is lacked, cable products with unqualified sizes or defects cannot be effectively removed in time, the production efficiency is reduced, and the technical problem of waste of raw materials is caused.

Inventors

  • WU SHANDONG

Assignees

  • 恒瑞电缆有限公司

Dates

Publication Date
20260508
Application Date
20250422

Claims (10)

  1. 1. A multi-layer coextrusion apparatus for producing fire-resistant flame-retardant wire and cable comprising: The device comprises an extruder (1), wherein a feeding cover (2) is arranged at the upper end of the extruder (1); the discharging screening component (3), the discharging screening component (3) is arranged at one end of the extruder (1); The falling containing assembly (4) is arranged at the lower end of the extruder (1); The discharging screening assembly (3) comprises a processing frame (3-1), the processing frame (3-1) is arranged on one side of the extruder (1), a discharging disc (3-2) is arranged on the side wall of the processing frame (3-1), a plurality of falling openings (3-3) are formed in the discharging disc (3-2), the falling openings (3-3) are transversely equidistantly arranged on the discharging disc (3-2), screening openings (3-4) are formed in the discharging disc (3-2), and the caliber of the screening openings (3-4) is smaller than that of the falling openings (3-3).
  2. 2. The multi-layer coextrusion production device for fire-resistant and flame-retardant wires and cables according to claim 1, characterized in that the side wall of the processing frame (3-1) is provided with an extrusion port (3-5), a driving shaft (3-6) is arranged on the extrusion port (3-5), a cutting knife (3-7) is arranged on the side wall of the driving shaft (3-6), and the cutting knife (3-7) is embedded in the extrusion port (3-5).
  3. 3. The multilayer coextrusion production device of fire-resistant flame retardant wires and cables according to claim 1, wherein the falling storage component (4) comprises a storage box (4-1), the storage box (4-1) is arranged on the lower end face of the discharge tray (3-2), a partition plate (4-2) is arranged inside the storage box (4-1), the partition plate (4-2) is arranged in the storage box (4-1), an interception plate (4-3) is arranged on the side wall of the storage box (4-1), and the interception plate (4-3) is arranged on the upper end face of the storage box (4-1) in a wide-mouth shape.
  4. 4. A fire-resistant flame-retardant wire and cable multilayer coextrusion production device according to claim 3, characterized in that the upper end surface of the dividing plate (4-2) is provided with a positioning groove (4-4), and the lower end surface of the discharging plate (3-2) is embedded into the positioning groove (4-4).
  5. 5. A fire-resistant flame-retardant wire and cable multilayer coextrusion production equipment according to claim 3, characterized in that the discharge tray (3-2) is of a semicircular structure, the lower end surface of the discharge tray (3-2) is provided with supporting stand legs (4-5), and the supporting stand legs (4-5) are positioned on two opposite sides of the storage box (4-1).
  6. 6. The multi-layer coextrusion production device for fire-resistant and flame-retardant wires and cables according to claim 1, characterized in that an extrusion pipe (5) is arranged between the extruder (1) and the processing frame (3-1), and the extrusion pipe (5) is communicated with the processing frame (3-1).
  7. 7. A multi-layer coextrusion production device for fire-resistant flame-retardant wires and cables according to claim 3, characterized in that the number of the dividing plates (4-2) is 2, and 2 of the dividing plates (4-2) divide the storage box (4-1) into 3 storage chambers.
  8. 8. The multi-layer coextrusion production device for fire-resistant and flame-retardant wires and cables according to claim 2, wherein the extrusion port (3-5) is provided with an extrusion hole (6), and the blade portion of the cutting blade (3-7) is attached to the end face of the extrusion port (3-5).
  9. 9. The multi-layer coextrusion production device for fire-resistant and flame-retardant wires and cables according to claim 1, wherein the discharge tray (3-2) is obliquely arranged, the higher end of the discharge tray (3-2) is connected with the processing frame (3-1), and the lower end of the discharge tray (3-2) is overlapped with the discharge tray (3-2).
  10. 10. The multilayer coextrusion production device for fire-resistant flame-retardant wires and cables according to claim 1, wherein the number of the screening openings (3-4) is the same as the number of the drop openings (3-3).

Description

Multi-layer coextrusion production equipment for fire-resistant flame-retardant wires and cables Technical Field The embodiment of the disclosure relates to the technical field of cable processing, in particular to a multilayer coextrusion production device for fire-resistant flame-retardant wires and cables. Background The electric wires and cables are used as key basic equipment for transmitting electric energy, transmitting information and realizing electromagnetic energy conversion, and occupy indispensable positions in economic and social operations, the development degree of the electric wires and cables is an important mark for measuring the national industrial manufacturing level, and from the application scene, the electric wires and cables are required to be in great and continuous demand in special industries such as household electric power installation, industrial power distribution systems, building engineering, transportation and even chemical industry, and the like, particularly in the fields with extremely high safety requirements, such as large public facilities, people stream dense places and the like, and the use of fire-resistant flame-retardant electric wires and cables is a key ring for ensuring safety. The production of the electric wire and the cable is a complex process, which comprises a plurality of steps of conductor wire drawing, conductor twisting, insulating extrusion, cabling, sheath extrusion, cable packaging and the like, and has the remarkable characteristics of large-length continuous combined production, various production process categories, large material flow and the like, is in line with the structure and performance requirements of the electric wire and the cable, meets the requirements of large-length continuous high-speed production, has the indispensable special equipment of industrial process characteristics, plays a decisive role in the quality and performance of the electric wire and the cable in the whole production process, and particularly has the advantages that the extrusion of each layer of material is required to be accurately controlled by the multi-layer structure, so that the electric conductivity and the mechanical performance of the electric wire and the cable are not influenced while the excellent fireproof flame retardant performance is realized. However, when the traditional wire and cable production equipment is used for multi-layer coextrusion production of fire-resistant flame-retardant wires and cables, a plurality of defects are exposed, in the raw material extrusion process, extrusion amount and extrusion speed of each layer of materials are difficult to accurately control, so that thickness of each layer is uneven, the overall performance of a product is affected, meanwhile, in a screening process, a high-efficiency and accurate screening mechanism is lacked, cable products with unqualified sizes or defects cannot be effectively removed in time, production efficiency is reduced, waste of raw materials is caused, in addition, in the aspect of product storage, traditional equipment is lacked reasonable classified storage design, cable products with different specifications or batches are easy to mix up, and follow-up management and use are not facilitated. Disclosure of utility model In order to overcome the defects, the embodiment of the disclosure provides a multi-layer coextrusion production device for fire-resistant flame-retardant wires and cables, wherein the traditional wire and cable production device exposes a plurality of defects when facing the multi-layer coextrusion production of fire-resistant flame-retardant wires and cables, is difficult to accurately control the extrusion amount and extrusion speed of each layer of material in the raw material extrusion process, so that the thickness of each layer is uneven, the overall performance of the product is affected, and meanwhile, in the screening process, a high-efficiency and accurate screening mechanism is lacked, and the cable products with unqualified or defective sizes cannot be effectively removed in time, thereby not only reducing the production efficiency, but also causing the waste of raw materials. According to one aspect, at least one embodiment of the present disclosure provides a multi-layer coextrusion production apparatus for fire-resistant flame-retardant wire and cable, comprising: The upper end of the extruder is provided with a feeding cover; The discharging screening component is arranged at one end of the extruder; the falling containing assembly is arranged at the lower end of the extruder; The discharging screening component comprises a processing frame, the processing frame is arranged on one side of the extruder, a discharging disc is arranged on the side wall of the processing frame, a falling opening is formed in the discharging disc, the number of the falling openings is multiple, the falling openings are transversely arranged at equal intervals on th