CN107481807A - A kind of extruder on power line Preparation equipment - Google Patents
A kind of extruder on power line Preparation equipment Download PDFInfo
- Publication number
- CN107481807A CN107481807A CN201710672019.4A CN201710672019A CN107481807A CN 107481807 A CN107481807 A CN 107481807A CN 201710672019 A CN201710672019 A CN 201710672019A CN 107481807 A CN107481807 A CN 107481807A
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- casing
- steel pipe
- extrusion
- power line
- screw rod
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- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 238000001125 extrusion Methods 0.000 claims abstract description 56
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002002 slurry Substances 0.000 description 21
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 239000012943 hotmelt Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/143—Insulating conductors or cables by extrusion with a special opening of the extrusion head
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides the extruder on a kind of power line Preparation equipment, belong to technical field of electric wires and cables.It solve insulating barrier skewness, surface of insulating layer on wire can not be anti-skidding etc. technical problem.A kind of extruder on power line Preparation equipment, this Preparation equipment includes a steel pipe, this extruder includes casing, extrusion screw rod and feed pipe, casing is in a tubular form, one end of casing has nozzle, the material feeding rod vertical with casing is provided with casing, material feeding rod is hollow structure, extrusion screw rod is plugged in extrusion bar, feed pipe communicates with extruding the cavity of bar, and the upper end of extrusion screw rod is fixedly installed an impeller, and impeller is located in steel pipe, the both ends of steel pipe are connected by flexible pipe with an oil pump respectively, and hydraulic oil is marked with steel pipe.The present invention have the advantages that thickness of insulating layer be evenly distributed, good antiskid effect.
Description
Technical field
The invention belongs to technical field of electric wires and cables, the extruder being related on a kind of power line Preparation equipment.
Background technology
Power line is wrapped by phase line, zero line and ground wire three by armouring or modeling and then the parcel by oversheath, is formed
Finished product, presently, its production process are complicated, and it is various to be related to equipment, and is all that phase line, zero line and ground wire are given birth to respectively
Postpartum, then complete to prepare by the mode of parcel oversheath, its is long in time limit, the retracting of electric wire often, damage to electric wire and
Pollute larger, it is impossible to it is disposable to complete, there is negative effect to the total quality and performance of power line.
The content of the invention
The purpose of the present invention is to be directed to above mentioned problem existing for existing technology, there is provided on a kind of power line Preparation equipment
Extruder, the technical problems to be solved by the invention are how uniformly to extrude slurries, make the thickness of insulating layer on wire well-balanced.
The purpose of the present invention can be realized by following technical proposal：A kind of extruder on power line Preparation equipment, its
It is characterised by, this Preparation equipment includes a steel pipe, and this extruder includes casing, extrusion screw rod and feed pipe, and the casing is in pipe
Shape, one end of the casing have nozzle, the material feeding rod vertical with casing are provided with the casing, during the material feeding rod is
Hollow structure, the extrusion screw rod are plugged in the extrusion bar, and the feed pipe communicates with extruding the cavity of bar, the extrusion spiral shell
The upper end of bar is fixedly installed an impeller, and the impeller is located in the steel pipe, the both ends of the steel pipe respectively by flexible pipe with
One oil pump is connected, and hydraulic oil is marked with the steel pipe.
Hydraulic oil passes through steel pipe, and impeller-driven is rotated, and makes extrusion screw rod in material feeding rod by the plastics slurries after hot melt
In extrusion to housing, the plastics slurries after hot melt are adhered on wire at nozzle, because wire is in rotation status, are made
Phase line, the thickness of insulating layer on zero line and ground wire it is uniform, and can effectively prevent plastics slurries from, by Action of Gravity Field, leading
Line top layer skewness, there is situations such as flash, local crowning.
In extruder on a kind of above-mentioned power line Preparation equipment, the upper end of the extrusion screw rod is stretched out outside steel pipe
Side, it is connected between the extrusion screw rod and steel pipe by plane bearing.
By plane bearing, extrusion screw rod is in static shape in the axial direction, slurries are carried out to continue extrusion.
In extruder on a kind of above-mentioned power line Preparation equipment, the nozzle includes inner and outer tubes, described
There is gap, the end of the outer tube is shunk, and extrusion gap is formed between inner tube, said inner tube between inner and outer tubes
End back shrinkage, and a relief portion is formed between outer tube, it is provided with some steel balls in the relief portion.
Common nozzle, shunk in extruding end, to increase extrusion pressure, still, due to slurry fluidity reason, extrusion pressure
Power can cause slurries to occur bubble when extrusion is adhered on wire, and also not enough uniformly, this nozzle uses starches in increase for distribution
After liquid extrusion pressure, a relief portion is set, the relief portion slows down the extruded velocity of slurries, by equally distributed some steel balls with
Extrusion is realized in gap between inner and outer tubes, and steel ball moves in the movement of wire and rotation process, makes insulation sides and wire
Recline close, and steel ball forms spiral helicine groove in surface of insulating layer, and phase line, zero line and ground wire are after mutually reclining, no
Easily by single extraction, the submissive degree of power line is indirectly improved, also improves power line aesthetics and intensity.
Compared with prior art, the present invention has advantages below：
1st, hydraulic oil passes through steel pipe, and impeller-driven is rotated, and extrusion screw rod is starched the plastics after hot melt in material feeding rod
Liquid is extruded to housing, and the plastics slurries after hot melt are adhered on wire at nozzle, because wire is in rotation status, system
Phase line, the thickness of insulating layer on zero line and ground wire it is uniform, and can effectively prevent plastics slurries by Action of Gravity Field,
Wire top layer skewness, there is situations such as flash, local crowning.
2nd, common nozzle, shunk in extruding end, to increase extrusion pressure, still, due to slurry fluidity reason, extrusion
Pressure can cause slurries to occur bubble when extrusion is adhered on wire, and also not enough uniformly, this nozzle, which uses, to be increased for distribution
After slurries extrusion pressure, a relief portion is set, the relief portion slows down the extruded velocity of slurries, passes through equally distributed some steel balls
Extrusion is realized in gap between inner and outer tubes, and steel ball moves in the movement of wire and rotation process, makes insulation sides with leading
Line reclines closely, and steel ball forms spiral helicine groove in surface of insulating layer, phase line, zero line and ground wire after mutually reclining,
It is not easy, by single extraction, indirectly to improve the submissive degree of power line, also improves power line aesthetics and intensity.
Brief description of the drawings
Fig. 1 is the overall structure diagram of this power line Preparation equipment.
Fig. 2 is the structural representation of discharging device in this power line Preparation equipment.
Fig. 3 is the structural representation of extrusion device in this power line Preparation equipment.
Fig. 4 is the structural representation of material collecting device in this power line Preparation equipment
Fig. 5 is the structural representation of nozzle in this power line Preparation equipment.
Fig. 6 is the structural representation of extruder in this power line Preparation equipment.
In figure, 11, base one；12nd, support one；13rd, motor；14th, main shaft；15th, master gear one；16th, from gear one；
17th, connecting rod one；21st, base two；22nd, steel pipe；23rd, support two；31st, casing；32nd, extrusion screw rod；33rd, feed pipe；34th, pan feeding
Bar；35th, impeller；4th, oil pump；51st, pull bar；52nd, inner tube；53rd, outer tube；54th, relief portion；55th, steel ball；61st, base three；62nd, support
Three；63rd, master gear three；64th, from gear three；65th, connecting rod three；7th, laminator；8th, cooling device.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, this Preparation equipment includes discharging device, extrusion device, laminator 7 and material collecting device, blowing
Device includes base 1 and the support 1 of ring-type, and support 1 is fixedly installed on base 1, fixed on support 1
It is provided with motor 13, main shaft 14, master gear 1 and three pass through belt and main shaft 14 from gear 1, motor 13
It is connected, master gear 1 is fixedly installed on main shaft 14, and three are engaged with master gear 1 simultaneously from gear 1, from gear one
16 are rotatably connected on support 1, and single blowing roller is each provided with from gear 1, is passed through from gear 1
The short axle one of tubulose, which is realized, to be rotated, and three wires of power line pass through out of three short axles one respectively, and under the rotation of short axle one,
Three wires are forced and the corresponding synchronous axial system of short axle one；
Wire passes through discharging device, extrusion device, laminator 7 and material collecting device successively, and two wind are provided with laminator 7
Device for cooling, two air cooling equipments carry out air-cooled to the electric wire for entering the electric wire of laminator 7 and being come out from laminator 7 respectively.
Three wires furl on blowing roller, and master gear 1 rotates under the drive of motor 13, drives simultaneously
Three rotate from gear 1, and wire is located in short axle one, rotated under the rotatory force of short axle one, by extrusion device,
A layer insulating is wrapped on wire, it is carried out by air cooling equipment it is air-cooled solidify to insulating barrier, three wires are made respectively
Standby is phase line, zero line and ground wire, and three passes through the gathering of laminator 7 and crossed after modeling, and the device 8 that is cooled herein cools down, and makes it
Oversheath is cured, and finally, is furled by retracting device to preparing the power line completed.
It is not difficult to find out, because wire is in rotation status before extrusion parcel is carried out, the difference after insulating barrier is wrapped up
It is changed into phase line, zero line and ground wire, three continues to pass through modeling parcel and retracting under rotation status, can so make wrapped in wire
More uniform during insulating barrier, more closely knit between wire and insulating barrier, gap is smaller, when progress oversheath crosses modeling, phase line, zero
It will not be stuck between line and ground wire and oversheath, also be not in paste between phase line, zero line and ground wire three, on the one hand may be used
To improve insulation effect, the aesthetics of whole power line on the other hand can be improved, in the absence of because between wire and insulating barrier
Gap is larger and loose, also causes whole power line local concavo-convex in the absence of being pasted between phase line, zero line and ground wire and oversheath
Injustice, overall ride comfort are poor etc..
Bearing one is fixedly installed in short axle one, one one-to-one connecting rod one of a short axle is fixedly installed on support 1
17, connecting rod 1 and short axle one are fixedly linked with the outer ring of bearing one and inner ring respectively；There is a rubber on the inwall of short axle one
Frictional layer one, there are the inclined teeth one to the opposite direction in the direction of rotation of short axle one on the inwall of rubber friction layer one；Tooth
Tooth one can effectively prevent that relative motion occurs between wire and short axle one, prevent that wire is larger by torsion degree, on the other hand,
Wire is also unlikely to be difficult to pass through in short axle one；Being offered in short axle one being capable of entering the inner chamber of lubricating oil injection short axle one
Oilhole one；Injection lubricating oil, can increase wire and pass through smoothness in short axle one.
As shown in Fig. 1, Fig. 3 and Fig. 6, extrusion device includes base 2 21 and the steel pipe 22 being fixedly linked with base 2 21,
Support 2 23 is further fixedly arranged on support 2 23, three extruders are evenly arranged with support 2 23, extruder includes casing
31st, extrusion screw rod 32 and feed pipe 33, in a tubular form, one end of casing 31 has nozzle to casing 31, be provided with casing 31 with
The vertical material feeding rod 34 of casing 31, material feeding rod 34 are hollow structure, and extrusion screw rod 32 is plugged in extrusion bar, and feed pipe 33 is with squeezing
The cavity of rod communicates, and the upper end of extrusion screw rod 32 is fixedly installed an impeller 35, and impeller 35 is located in steel pipe 22, steel pipe 22
Both ends are connected by flexible pipe with an oil pump 4 respectively, and hydraulic oil is marked with steel pipe 22.
Hydraulic oil passes through steel pipe 22, and impeller 35 is driven into rotation, after making extrusion screw rod 32 in material feeding rod 34 by hot melt
Plastics slurries are extruded to housing, and the plastics slurries after hot melt are adhered on wire at nozzle, because wire is in rotation
State, the thickness of insulating layer on obtained phase line, zero line and ground wire is uniform, and can effectively prevent plastics slurries by gravity
Effect, on wire top layer skewness, there is situations such as flash, local crowning.
Steel pipe 22 is fixedly linked by some pull bars 51 with base 2 21；The upper end of extrusion screw rod 32 is stretched out outside steel pipe 22
Side, it is connected between extrusion screw rod 32 and steel pipe 22 by plane bearing；By plane bearing, extrusion screw rod 32 is set to locate in the axial direction
In static shape, slurries are carried out to continue extrusion.
As shown in figure 5, nozzle includes inner tube 52 and outer tube 53, there is gap, outer tube 53 between inner tube 52 and outer tube 53
End shrink, and extrusion gap, the end back shrinkage of inner tube 52, and being formed between outer tube 53 are formed between inner tube 52
One relief portion 54, some steel balls 55 are provided with relief portion 54.
Common nozzle, shunk in extruding end, to increase extrusion pressure, still, due to slurry fluidity reason, extrusion pressure
Power can cause slurries to occur bubble when extrusion is adhered on wire, and also not enough uniformly, this nozzle uses starches in increase for distribution
After liquid extrusion pressure, a relief portion 54 is set, the relief portion 54 slows down the extruded velocity of slurries, passes through equally distributed some steel
Extrusion is realized in gap between pearl 55 and inner tube 52 and outer tube 53, and steel ball 55 is moved in the movement of wire and rotation process, made
Insulation sides are close to close with Wire stick, and steel ball 55 forms spiral helicine groove in surface of insulating layer, and phase line, zero line and ground wire exist
After mutually reclining, it is not easy to by single extraction, indirectly improve the submissive degree of power line, it is attractive in appearance to also improve power line
Degree and intensity.
As shown in Figure 1 and Figure 4, material collecting device includes base 3 61 and the support 3 62 of ring-type, and support 3 62 is fixedly installed
On base 3 61, master gear 3 63 is fixedly installed on support 3 62 and three are fixed and set from gear 3 64, master gear 3 63
Put on main shaft 14, three are engaged with master gear 3 63 simultaneously from gear 3 64, and support 3 62 is rotatably connected on from gear 3 64
On, realized and rotated by the short axle three of tubulose from gear 3 64, phase line, zero line and the ground wire of power line pass through three short axles respectively
Passed through in three, and under the rotation of short axle three, phase line, zero line and ground wire are forced and the corresponding synchronous axial system of short axle one；Three from tooth
Take turns 3 64 pairs of master gears 3 63 to be engaged, under the transmission of main shaft 14, three, from the synchronous rotary of gear 3 64, are wrapped outer protect
Power line after set makes its smooth-going by traction, further increases gap between phase line, zero line and ground wire and oversheath, single batch
After the completion of secondary preparation, cut, because power supply line length is shorter, in the absence of knot situations such as, if it is considered that oversheath and phase
Gap is excessive between line, zero line and ground wire, can make oversheath heat shrinkable by way of uniformly heating, in addition, there is parcel
Oversheath temperature is higher, and after its cooling, its gap can also reduce, and this equipment changes traditional preparation methods, using what is blocked
Single power line is manufactured separately in mode.
Bearing three is fixedly installed in short axle three, three one-to-one connecting rod three of a short axle is fixedly installed on support 3 62
65, connecting rod 3 65 and short axle three are fixedly linked with the outer ring of bearing three and inner ring respectively；There is a rubber on the inwall of short axle three
Frictional layer three, there are the inclined teeth three to the opposite direction in the direction of rotation of short axle three on the inwall of rubber friction layer three；Tooth
Tooth three can effectively prevent that relative motion occurs between wire and short axle three, prevent that wire is larger by torsion degree, on the other hand,
Phase line, zero line and ground wire are also unlikely to be difficult to pass through in short axle three.
The fuel feed hole three for the inner chamber that lubricating oil can be injected to short axle three is offered in short axle three；The injection profit in short axle three
Lubricating oil, wire can be increased and pass through smoothness.
Master gear 1 and the teeth quantity of master gear 3 63 are identical with teeth size, from gear 1 and from gear 3 64
Teeth quantity is identical with teeth size；The synchronization of discharging device and material collecting device is kept, prevents wire, phase line, zero line and ground wire
Deng distorting.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (3)
1. the extruder on a kind of power line Preparation equipment, it is characterised in that this Preparation equipment includes a steel pipe (22), this extrusion
Machine includes casing (31), extrusion screw rod (32) and feed pipe (33), the casing (31) in a tubular form, one end of the casing (31)
With nozzle, the material feeding rod (34) vertical with casing (31) is provided with the casing (31), during the material feeding rod (34) is
Hollow structure, the extrusion screw rod (32) are plugged in the extrusion bar, and the feed pipe (33) communicates with extruding the cavity of bar, institute
The upper end for stating extrusion screw rod (32) is fixedly installed an impeller (35), and the impeller (35) is located in the steel pipe (22), described
The both ends of steel pipe (22) are connected by flexible pipe with an oil pump (4) respectively, and hydraulic oil is marked with the steel pipe (22).
A kind of 2. extruder on power line Preparation equipment according to claim 1, it is characterised in that the extrusion screw rod
(32) outside of steel pipe (22) is stretched out in upper end, is connected between the extrusion screw rod (32) and steel pipe (22) by plane bearing.
3. the extruder on a kind of power line Preparation equipment according to claim 2, it is characterised in that the nozzle includes
Inner tube (52) and outer tube (53), there is gap between said inner tube (52) and outer tube (53), the end of the outer tube (53) is shunk,
And extrusion gap, the end back shrinkage of said inner tube (52) are formed between inner tube (52), and formed between outer tube (53)
One relief portion (54), the relief portion (54) is interior to be provided with some steel balls (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672019.4A CN107481807B (en) | 2017-08-08 | 2017-08-08 | A kind of extruder on power supply line Preparation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710672019.4A CN107481807B (en) | 2017-08-08 | 2017-08-08 | A kind of extruder on power supply line Preparation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107481807A true CN107481807A (en) | 2017-12-15 |
| CN107481807B CN107481807B (en) | 2019-05-03 |
Family
ID=60599120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710672019.4A Active CN107481807B (en) | 2017-08-08 | 2017-08-08 | A kind of extruder on power supply line Preparation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107481807B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899921A (en) * | 2020-09-04 | 2020-11-06 | 安徽航天电缆集团有限公司 | Fire-resistant power cable with cross-linked polyethylene insulating flame-retardant polyvinyl chloride sheath |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1142695A (en) * | 1997-07-28 | 1999-02-16 | Hitachi Cable Ltd | Automatic color changing device |
| CN202217549U (en) * | 2011-09-28 | 2012-05-09 | 安徽省砀山兴华电缆有限公司 | Foamed insulated cable extruding machine |
| CN103029281A (en) * | 2012-12-14 | 2013-04-10 | 天津德芃科技集团有限公司 | Spiral shield cable sheath extrusion device |
| CN203103020U (en) * | 2013-03-04 | 2013-07-31 | 扬州华声电子实业有限公司 | Extruder suitable for producing cable core insulation and cable sheath |
| CN205989497U (en) * | 2016-06-23 | 2017-03-01 | 湖北飞歌科技有限公司 | A kind of quincunx plastic pipe molding extruder |
-
2017
- 2017-08-08 CN CN201710672019.4A patent/CN107481807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1142695A (en) * | 1997-07-28 | 1999-02-16 | Hitachi Cable Ltd | Automatic color changing device |
| CN202217549U (en) * | 2011-09-28 | 2012-05-09 | 安徽省砀山兴华电缆有限公司 | Foamed insulated cable extruding machine |
| CN103029281A (en) * | 2012-12-14 | 2013-04-10 | 天津德芃科技集团有限公司 | Spiral shield cable sheath extrusion device |
| CN203103020U (en) * | 2013-03-04 | 2013-07-31 | 扬州华声电子实业有限公司 | Extruder suitable for producing cable core insulation and cable sheath |
| CN205989497U (en) * | 2016-06-23 | 2017-03-01 | 湖北飞歌科技有限公司 | A kind of quincunx plastic pipe molding extruder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111899921A (en) * | 2020-09-04 | 2020-11-06 | 安徽航天电缆集团有限公司 | Fire-resistant power cable with cross-linked polyethylene insulating flame-retardant polyvinyl chloride sheath |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107481807B (en) | 2019-05-03 |
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Denomination of invention: An extruder on a power cord preparation equipment Effective date of registration: 20231124 Granted publication date: 20190503 Pledgee: Huangwan sub branch of Zhejiang Haining Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG HAINING PASE AUTOMATION TECHNOLOGY Co.,Ltd. Registration number: Y2023980067466 |
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