US 11,885,068 B2
Encapsulated duct cable with identification tags and manufacturing method thereof
Jianliang Duan, Tangshan (CN); and Jian Dong, Tangshan (CN)
Assigned to Shinda (Tangshan) Creative Oil & Gas Equipment CO., LTD.
Filed by Shinda (Tangshan) Creative Oil & Gas Equipment Co., LTD., Tangshan (CN)
Filed on Sep. 29, 2020, as Appl. No. 17/035,920.
Claims priority of application No. 202010397053.7 (CN), filed on May 12, 2020.
Prior Publication US 2021/0355633 A1, Nov. 18, 2021
Int. Cl. D07B 1/14 (2006.01); D07B 7/16 (2006.01)
CPC D07B 1/141 (2013.01) [D07B 7/167 (2013.01); D07B 2205/2003 (2013.01); D07B 2205/502 (2013.01); D07B 2207/4031 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A manufacturing method of an encapsulated duct cable with identification tags, the encapsulated duct cable comprising an encapsulation layer, wherein the cross section of the encapsulation layer is polygonal or arc-shaped; at least one cable protective tube and at least one oil-liquid tube are arranged in the encapsulation layer; a cable is arranged in the cable protective tube;
identification tags with different color identifiers are respectively arranged on one side of the cable protective tube and one side of the oil-liquid tube in one to one correspondence;
the manufacturing method comprising following steps:
step 1: machining the cable protective tube and paving the cable: placing a steel coil raw material for producing the cable protective tube on a steel band winding device; placing a wound cable on a cable winding device; guiding the start end of the steel coil raw material to sequentially pass through a steel tube initial forming device, the cable winding device, a steel tube laser welding device, a nondestructive testing device, a steel tube drawing device and a traction device to produce the cable protective tube sleeving the cable;
winding the cable protective tube by a cable protective tube winding device for later use;
step 2: machining the oil-liquid tube: placing a steel coil raw material for producing the oil-liquid tube on the steel band winding device; guiding the start end of the steel coil raw material to sequentially pass through a steel tube forming device, the steel tube laser welding device, an outer bur removing device, the steel tube drawing device, an annealing furnace and the nondestructive testing device to produce the oil-liquid tube;
winding the oil-liquid tube by an oil-liquid tube winding device for later use;
step 3: machining the encapsulation layer: placing the cable protective tube and the oil-liquid tube, which need to be encapsulated, on a relative winding device; guiding the start ends of the cable protective tube and the oil-liquid tube to sequentially pass through a steel tube straightening device, a steel tube preheating device, an identification tag winding device, an encapsulation and extrusion device, a cooling device and a traction device to form the encapsulation layer;
winding the encapsulated duct cable by the winding device;
wherein a tension device is arranged between the identification tag winding device and the encapsulation and extrusion device; the tension device comprises a base; two guide pulleys and a support are arranged on the base; a lift arm is articulated with the support; one end of the lift arm is connected with the support through a tension spring, and the other end of the lift arm is provided with a tension pulley; the tension pulley is located between the two guide pulleys.