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CN-122000139-A - New energy automobile cable insulation layer feed back is crowded former altogether

CN122000139ACN 122000139 ACN122000139 ACN 122000139ACN-122000139-A

Abstract

The invention relates to the technical field of manufacturing of cables of new energy automobiles, in particular to a new energy automobile cable insulation layer return material co-extrusion molding device which comprises an insulation return material and a wire harness, wherein the insulation return material and the wire harness comprise an insulation return material extrusion part, a screen changing filtering part, a connection transition part and an insulation layer wire harness co-extrusion molding part which are sequentially connected, the parts are cooperated to realize co-extrusion molding of the cable insulation layer return material, the insulation return material extrusion part is connected with a peripheral screw extruder and used for entering of the insulation return material, the insulation layer wire harness co-extrusion molding part comprises a wire harness entering section, a co-extrusion polymerization section and a cooling molding section, the connection transition part is communicated with the co-extrusion polymerization section, the insulation return material and the wire harness entering from the wire harness entering section are co-extruded and output and molded through the cooling molding section.

Inventors

  • WU LIANG

Assignees

  • 奥林特电缆科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260331

Claims (10)

  1. 1. The novel energy automobile cable insulation layer feedback coextrusion molding device comprises an insulation feedback and a wire harness, and is characterized by comprising an insulation feedback extrusion part (1), a screen changing filtering part (2), a connection transition part (3) and an insulation layer wire harness coextrusion molding part (4) which are sequentially connected, wherein the insulation feedback extrusion part (1) is connected with a peripheral screw extruder and used for feeding the insulation feedback, the insulation layer wire harness coextrusion molding part (4) comprises a wire harness feeding section (41), a coextrusion polymerization section (42) and a cooling molding section (43), the connection transition part (3) is communicated with the coextrusion polymerization section (42), and the insulation feedback is subjected to coextrusion polymerization with the wire harness fed from the wire harness feeding section (41) and is output to be molded through the cooling molding section (43).
  2. 2. The novel energy automobile cable insulation layer feedback coextrusion molding device is characterized in that the insulation feedback extrusion part (1) comprises a connecting flange (11), a pressure equalizing pore plate (12) and an electric heater assembly (13), the connecting flange (11) is connected with a screw extruder head, the pressure equalizing pore plate (12) is arranged between the connecting flange (11) and the electric heater assembly (13) to achieve uniform feeding of insulation feedback, the electric heater assembly (13) comprises a connecting pipe (131), a sleeve (132) and a jacket shell (133) are sequentially sleeved on the outer side of the connecting pipe (131) from inside to outside, and a nut fastener (137) is assembled on the jacket shell (133) and used for installation and fixation.
  3. 3. The new energy automobile cable insulation layer feedback co-extrusion molding device according to claim 2 is characterized in that a spiral groove (139) is formed in the outer wall of the connecting pipe (131), an oil inlet and outlet port (138) is formed in the sleeve (132), a connector (135) is arranged in the oil inlet and outlet port (138) and is communicated with the spiral groove (139) to form a heat conducting oil circulation channel, and the electric heater assembly (13) further comprises a melt pressure sensor (134) and a thermocouple assembly (136) which are respectively used for detecting internal pressure and precisely controlling heating temperature.
  4. 4. The new energy automobile cable insulation layer feedback co-extrusion molding equipment is characterized in that the screen changing filter part (2) comprises a filter heating box assembly (21), a screen changing plate assembly (22), a connecting support (23) and a screen changing oil cylinder assembly (24), the screen changing plate assembly (22) is arranged in the filter heating box assembly (21) in a sliding penetrating mode, the connecting support (23) is arranged on the filter heating box assembly (21), the screen changing oil cylinder assembly (24) is arranged on the connecting support (23), the output end of the screen changing oil cylinder assembly is connected with the screen changing plate assembly (22) through the connecting support (23), and the screen changing oil cylinder assembly (24) is driven to drive the screen changing plate assembly (22) to slide in a linear mode in the filter heating box assembly (21) to achieve multi-station switching.
  5. 5. The new energy automobile cable insulation layer feedback coextrusion molding equipment according to claim 4, wherein the filtering heating box assembly (21) comprises a box body (211), mounting through holes (212) and slotted holes for sliding of a screen replacement plate assembly (22) are formed in the box body (211), a first connecting flange (219) and a second connecting flange (216) are correspondingly arranged on two sides of the box body (211) and are communicated with the mounting through holes (212), a guide ring (217) and a diffusion ring (218) are correspondingly arranged on one side, close to the first connecting flange (219), of the mounting through holes (212), annular electric heating pipes (214) and a first copper pressing plate (213) are also arranged in the box body (211) in a matched mode, the first copper pressing plate (213) is used for adjusting pressure and clearance between the screen replacement plate assembly (22) and the box body (211), an outer heating plate (215) is further arranged on the box body (211), and the outer heating plate (215) and the annular electric heating pipes (214) are matched to achieve double heating of the box body (211).
  6. 6. The new energy automobile cable insulation layer feedback coextrusion molding equipment according to claim 4, wherein the screen changing plate assembly (22) comprises a sliding plate (221), a stable connecting block (222) is arranged at the side end of the sliding plate (221) and is connected with the output end of the screen changing oil cylinder assembly (24), a plurality of stations are arranged on the sliding plate (221), an orifice plate (223) is embedded in the sliding plate, a filter screen (224) is arranged on one side, close to the first connecting flange (219), of the orifice plate (223) in a matched mode, the orifice plate (223) and the filter screen (224) can be detached and replaced independently, the specification of the filter screen (224) is matched with the insulation feedback, and a second copper pressing plate (225) and a sliding plate heating pipe (226) are further arranged on the sliding plate (221).
  7. 7. The new energy automobile cable insulation layer feedback coextrusion molding device is characterized in that the connecting transition part (3) comprises a transition section (31) and a conical pressurizing section (33), an inner flange heating pipe (32) is arranged between the transition section (31) and the conical pressurizing section (33), the structure of the transition section (31) is the same as that of the electric heater assembly (13), the inner diameter of the conical pressurizing section (33) is gradually reduced along the insulation feedback flow direction, so that melt pressurization and steady flow are achieved, and a melt pressure sensor (134) and a thermocouple assembly (136) are matched on the conical pressurizing section (33).
  8. 8. The new energy automobile cable insulation layer feedback coextrusion molding device according to claim 1, wherein the coextrusion polymerization section (42) comprises a conical main inlet (421), a supplementary inlet (422) and a cooling oil connecting pipe (423), the conical main inlet (421) and the supplementary inlet (422) are communicated with an inner cavity of the coextrusion polymerization section (42), the conical main inlet (421) is used for coextrusion of an insulation feedback and a main polymerization coating of a wire harness, the supplementary inlet (422) is used for coextrusion of the insulation feedback and the supplementary polymerization coating of the wire harness, a cooling oil groove (424) is formed in the inner cavity of the coextrusion polymerization section (42) in a matching mode, and the cooling oil connecting pipe (423) is communicated with the cooling oil groove (424).
  9. 9. The new energy automobile cable insulation layer feedback co-extrusion molding equipment according to claim 1, wherein the cooling molding section (43) comprises a sizing sleeve (431) and a fluid cooling component (432) and is used for cooling and shaping an insulation layer covered outside a wire harness.
  10. 10. The new energy automobile cable insulation layer feedback co-extrusion molding device according to claim 5, wherein guide plates are arranged in the guide ring (217) in a matched mode, and the angle of the guide plates is 15-25 degrees.

Description

New energy automobile cable insulation layer feed back is crowded former altogether Technical Field The invention relates to the technical field of new energy automobile cable manufacture, in particular to new energy automobile cable insulation layer return material co-extrusion molding equipment. Background Along with the rapid development of the new energy automobile industry, the consumption of the high-voltage cable is continuously increased, the quantity of scraps, unqualified products and other recycled materials generated in the production process of the insulating layer is huge, and the cost and the resource consumption can be obviously reduced by recycling. The existing cable insulating layer extrusion molding equipment is designed aiming at new materials, and has the defects of large fluctuation of melt temperature and pressure of the recycled materials, uneven plasticization, easy occurrence of uneven thickness of insulating layers, bubbles, layering and the like when the recycled materials are directly used, ineffective filtration of impurities in the recycled materials, influence on insulating performance and mechanical strength, shutdown of screen changing operation, poor continuity, low production efficiency, insufficient heating and cooling control precision, poor melt flowability and molding stability, difficulty in meeting the high-quality requirements of vehicle-level cables, poor recycling adaptability, low recycling material utilization rate, unstable regenerated product performance and restriction of green and efficient production of new energy automobile cables. Disclosure of Invention In order to solve some problems in the prior art, the invention provides the novel energy automobile cable insulation layer return material co-extrusion molding equipment, which realizes efficient and uniform co-extrusion molding of the insulation layer return material through optimal design and innovation, improves the production efficiency and the product quality of the novel energy automobile cable, and meets the urgent requirements of the novel energy automobile industry on high-performance cables. The invention provides novel energy automobile cable insulation layer return material co-extrusion molding equipment, which comprises an insulation return material and a wire harness, wherein the insulation return material extrusion part, a screen changing filtering part, a connection transition part and the insulation layer wire harness co-extrusion molding part are sequentially connected, the insulation return material extrusion part is connected with a peripheral screw extruder and used for entering of the insulation return material, the insulation layer wire harness co-extrusion molding part comprises a wire harness entering section, a co-extrusion polymerization section and a cooling molding section, the connection transition part is communicated with the co-extrusion polymerization section, and the insulation return material is co-extruded and polymerized with the wire harness entering from the wire harness entering section and is output and molded through the cooling molding section. The invention has the beneficial effects that the efficient and uniform coextrusion of the insulating layer return material is realized through the insulating return material extrusion part, the screen changing filtering part, the connection transition part and the insulating layer wire harness coextrusion part which are sequentially connected. The pressure equalizing, accurate heating and temperature control pressure measuring structure of the insulation return extrusion part improves the uniformity of return plasticization and the stability of a melt, the screen changing and filtering part realizes multi-station screen changing and double heating filtration without stopping, effectively removes impurities and ensures the production continuity, the conical pressurizing and steady flow structure of the connecting transition part optimizes the melt flow state, the co-extrusion polymerization section and the cooling forming section cooperatively realize the uniform coating and accurate shaping of an insulation layer, obviously improves the utilization rate of the return material, reduces the energy consumption and the production cost, ensures the uniformity, compactness and standard of the insulation layer thickness, meets the production requirements of high quality and green production of new energy automobile cables, meets the production requirements of high insulation, high strength and high consistency of the new energy automobile cables, and improves the production continuity and the product qualification rate. The insulation return material extrusion device is further improved, in order to achieve uniform entering of insulation materials and avoid fluctuation and instability in the extrusion process, the insulation return material extrusion part comprises a connecting flange, a pressure equalizing pore plate and an