CN111968794A - Cable insulating layer coating method - Google Patents
Cable insulating layer coating method Download PDFInfo
- Publication number
- CN111968794A CN111968794A CN202010824874.4A CN202010824874A CN111968794A CN 111968794 A CN111968794 A CN 111968794A CN 202010824874 A CN202010824874 A CN 202010824874A CN 111968794 A CN111968794 A CN 111968794A
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- Prior art keywords
- coating
- cable
- conveying
- fixedly connected
- electrorheological fluid
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Classifications
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- 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
-
- 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
-
- 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
- H01B13/146—Controlling the extrusion apparatus dependent on the capacitance or the thickness of the insulating material
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a cable insulating layer coating method, which relates to the technical field of coating machines and comprises a conveying device, a coating device, a cooling device and a winding device, wherein the conveying device, the coating device, the cooling device and the winding device are all arranged on a workbench, and a cable to be coated sequentially passes through the conveying device, the coating device, the cooling device, the conveying device and the winding device; and the axes of the cables with different models are always positioned in the center of the enclosed gap of the two electrorheological fluid capsules, so that the cables are not easy to deviate in the transmission process, and the coating uniformity is good.
Description
Technical Field
The invention relates to the technical field of coating machines, in particular to a method for coating a cable insulating layer.
Background
The cable mainly comprises a wire core, and an insulating layer and a protective layer which are sequentially coated on the outer side of the wire core. The coating of the insulating layer in the prior art is completed by coating the fused insulating glue solution on the wire core by using a coating device. When the core passes through the cladding device, generally a conveying and limiting device is needed, so that the core moves and the core is prevented from deviating, and the core moves at a constant speed and is uniformly coated.
But present conveying and stop device only can convey and spacing to the cable of single model, when carrying out the cladding to the insulating layer of the cable of different models, need change conveying and stop device to avoid the less sinle silk of diameter to influence conveying speed and cladding homogeneity with the axle center nonconformity with the conveying and stop device contact is shallower, change comparatively troublesome and influence efficiency repeatedly, change simultaneously and cause the error once more easily, influence the cladding effect.
Disclosure of Invention
The invention provides a method for coating an insulating layer of a cable, and aims to solve the problems that when the insulating layers of cables of different types are coated in the traditional technology, a conveying and limiting device needs to be replaced, the conveying and limiting device is troublesome, the efficiency is influenced, and meanwhile, the replacement easily causes secondary errors, and the coating effect is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cable insulating layer coating method comprises the following specific steps:
s1, sequentially enabling the cable to be coated to pass through the conveying device, the coating device, the cooling device, the conveying device and the winding device;
s2, controlling the transmission device to enable the electro-rheological fluid sac on the rotating roller to gradually cling to and recover from the initial contraction state to be close to the outer periphery of the cable, and forming uniform extrusion on the outer periphery of the cable;
s3, starting the devices, conveying and limiting the cables by the two conveying devices, finishing coating by the coating device, finishing cooling by the cooling device, and finishing winding by the winding device;
the cable insulating layer coating method further relates to a coating machine which comprises a conveying device, a coating device, a cooling device and a winding device, wherein the conveying device, the coating device, the cooling device and the winding device are all arranged on a workbench, a cable to be coated sequentially passes through the conveying device, the coating device, the cooling device, the conveying device and the winding device, the conveying device comprises a support frame, a conveying motor is fixedly connected to the outer side of the support frame, two rotating rollers are rotatably connected to the inner side of the support frame, one ends of the two rotating rollers penetrate through the support frame and are coaxially and fixedly connected with gears, the two gears are mutually meshed, and the output end of the conveying motor is coaxially and fixedly connected to one gear;
an annular groove is formed in the outer periphery of the middle of the rotating roller, inner cavities are formed in the inner portions of the two ends of the rotating roller, an electrorheological fluid bag is fixedly connected in the annular groove, conductive electrodes are fixedly connected to the two sides of the annular groove, electrorheological fluid is contained in the electrorheological fluid bag, the two ends of the electrorheological fluid bag are respectively communicated with the two inner cavities, pistons are hermetically and slidably connected in the two inner cavities, an electric telescopic rod is fixedly connected to one side of each piston far away from the electrorheological fluid bag, one end of each piston far away from the electrorheological fluid bag is fixedly connected to the output end of the electric telescopic rod, and;
the conveying motor, the conductive electrode, the electric telescopic rod and the pressure detection piece are electrically connected with a control device, and the control device is arranged on the workbench.
Preferably, the coating device, the cooling device and the winding device all adopt the prior art.
Preferably, the electrorheological fluid bag has elasticity, and the elasticity decreases from the middle part to the two ends.
Preferably, the difference between the inner and outer diameters of the annular groove is larger than the diameter of the cable to be covered.
Compared with the prior art, the invention has the following beneficial effects:
the electro-rheological fluid sac is in a contracted state in an initial state, partial electro-rheological fluid in the electro-rheological fluid sac flows into the inner cavity, a cable to be coated conveniently penetrates through a gap between the two electro-rheological fluid sacs, the control device controls the output end of the electric telescopic rod to gradually extend out to push the piston to return the electro-rheological fluid in the inner cavity into the electro-rheological fluid sac, the electro-rheological fluid sac is gradually attached to the cable to be coated until the pressure between the cable to be coated and the electro-rheological fluid sac at the upper part of the electro-rheological fluid sac reaches the threshold value of the pressure detection sheet, the control device locks the electric telescopic rod and enables an electric field to be formed between the two conductive electrodes, so that the electro-rheological fluid generates liquid-solid phase change, and the electro;
the two electrorheological fluid capsules are almost completely attached to the cable to be coated, compared with the traditional mode of extruding and conveying by using an extrusion roller, the two electrorheological fluid capsules have large contact area with the cable to be coated and uniform extrusion force, so that the cable is not easy to damage, and the conveying speed is stable;
meanwhile, the gap between the two electrorheological fluid capsules can be controlled along with the diameter change of the cable, so that the effective transmission effect can be achieved when the cables of different types are coated; and the axes of the cables with different models are always positioned in the center of the enclosed gap of the two electrorheological fluid capsules, so that the cables are not easy to deviate in the transmission process, and the coating uniformity is good.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a part of the structure of the conveying apparatus of the present invention;
FIG. 3 is a schematic view of the structure of the middle of two conveying rollers in the initial state of the invention;
fig. 4 is a structural schematic diagram of the middle parts of two conveying rollers in the working state of the invention.
In the figure: the device comprises a transmission device a, a coating device b, a cooling device c, a winding device d, a support frame 1, a transmission motor 2, a rotating roller 3, a gear 4, an annular groove 5, an electrorheological fluid bag 6, an electrorheological electrode 7, an inner cavity 8, a piston 9, an electric telescopic rod 10 and a pressure detection sheet 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a method for coating a cable insulation layer includes the following steps:
s1, the cable to be coated sequentially passes through a conveying device a, a coating device b, a cooling device c, a conveying device a and a winding device d;
s2, controlling the transmission device a to enable the electro-rheological fluid sac 6 on the rotating roller 3 to gradually cling to and recover from the initial contraction state and lean against the outer periphery of the cable, and forming uniform extrusion on the outer periphery of the cable;
s3, starting the devices, conveying and limiting the cables by the two conveying devices a, finishing coating by the coating device b, finishing cooling by the cooling device c, and finishing winding by the winding device d;
the cable insulating layer coating method also relates to a coating machine which comprises a conveying device a, a coating device b, a cooling device c and a winding device d, wherein the conveying device a, the coating device b, the cooling device c and the winding device d are all arranged on a workbench, and the cable to be coated sequentially passes through the conveying device a, the coating device b, the cooling device c, the conveying device a and the winding device d, wherein the coating device b, the cooling device c and the winding device d adopt the prior art.
Conveyer a includes support frame 1, 1 outside fixedly connected with conveying motor 2 of support frame, 1 inboard rotation of support frame is connected with two live-rollers 3, 1 and equal coaxial fixedly connected with gear 4 of support frame are all run through to two live-rollers 3 one end, two gear 4 intermeshing, the coaxial fixed connection of 2 output ends of conveying motor is on a gear 4, conveying motor 2 work, its output drives two live-rollers 3 and is opposite direction rotation.
The outer periphery side of the middle part of the rotating roller 3 is provided with an annular groove 5, inner cavities 8 are formed in the two ends of the rotating roller, the difference of the inner diameter and the outer diameter of the annular groove 5 is larger than the diameter of a cable to be coated, an electrorheological fluid bag 6 is fixedly connected in the annular groove 5, conductive electrodes 7 are fixedly connected on the two sides of the annular groove 5, the electrorheological fluid bag 6 has elasticity, the elasticity is gradually decreased from the middle part to the two ends, and cables of various types smaller than the difference of the inner diameter and the outer diameter.
The electrorheological fluid bag 6 is filled with electrorheological fluid, which is complex fluid formed by mixing dielectric particles and insulating liquid and is converted from liquid state to solid state under the action of an electric field with certain intensity.
6 both ends of electrorheological fluids bag communicate with two inner chambers 8 respectively, equal sealing sliding connection has piston 9 in two inner chambers 8, and keep away from the equal fixedly connected with electric telescopic handle 10 in 6 one sides of electrorheological fluids bag, 6 one end fixed connection of electrorheological fluids bag is kept away from on the 10 output of electric telescopic handle for two piston 9, electric telescopic handle 10 adopts prior art, when electric telescopic handle 10 output drives piston 9 and removes in inner chamber 8, electrorheological fluids in the electrorheological fluids bag 6 is taken into or is released inner chamber 8, make electrorheological fluids bag 6 by the middle part to both sides sunken or resume.
6 middle part outside fixedly connected with pressure detection pieces 11 of electrorheological fluids bag, detect electrorheological fluids bag 6 and treat the pressure between the cladding cable, conveying motor 2, leading electrode 7, electric telescopic handle 10 and the equal electric connection of pressure detection pieces 11 have controlling means, not drawn in the controlling means picture, controlling means sets up on the workstation, controlling means acquires pressure data and the operating condition of control conveying motor 2, leading electrode 7, electric telescopic handle 10 of pressure detection pieces 11.
The principles of the present invention are now described as follows:
firstly, under the condition of not working, namely under the initial state, the electrorheological fluid capsules 6 on the two rotating rollers 3 in the conveying device a are in a contraction state, partial electrorheological fluid in the electrorheological fluid capsules flows into the inner cavities 8 which are communicated with the electrorheological fluid capsules and start to be arranged in the two rotating rollers 3, and the electrorheological fluid capsules 6 form a rotating body with the concave middle part because the elasticity of the electrorheological fluid capsules 6 is gradually reduced from the middle part to the two ends, so that a cable to be coated can conveniently penetrate through a gap between the two electrorheological fluid capsules 6;
the control device controls the output end of an electric telescopic rod 10 fixedly connected in the inner cavity 8 to gradually extend out, the output end of the electric telescopic rod 10 pushes a piston 9 fixedly connected with the electric telescopic rod to slide along the inner cavity 8 in a sealing manner, the electrorheological fluid in the inner cavity 8 returns to the electrorheological fluid bag 6, and the sunken part in the middle of the electrorheological fluid bag 6 is gradually restored to be attached to the outer peripheral side of the cable to be coated until the pressure between the cable to be coated and the electrorheological fluid bag 6 on the upper part of the cable to be coated reaches the threshold value of the pressure;
the control device locks the electric telescopic rod 10 to keep the extension length thereof, and an electric field is formed between the two conductive electrodes 7, so that the electrorheological fluid is subjected to liquid-solid phase change;
at the moment, the two electrorheological fluid capsules 6 are almost completely attached to the cable to be coated, compared with the traditional mode of extruding and conveying by using an extrusion roller, the contact area between the two electrorheological fluid capsules and the cable to be coated is large, the extrusion force is uniform, the cable is not easy to damage, and the conveying speed is stable;
meanwhile, the gap between the two electrorheological fluid capsules 6 can be controlled along with the diameter change of the cable, so that the effective transmission effect can be achieved when the cables of different types are coated; the axes of the cables with different types are always positioned in the center of the gap surrounded by the two electrorheological fluid capsules 6, so that the cables are not easy to deviate in the transmission process and the coating uniformity is good;
the cable to be coated passes through the coating device b and the cooling device c under the conveying and limiting of the two conveying devices a, and is finally collected by the winding device d, so that the whole coating operation is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A method for coating a cable insulating layer is characterized by comprising the following steps:
s1, the cable to be coated sequentially passes through the conveying device (a), the coating device (b), the cooling device (c), the conveying device (a) and the winding device (d);
s2, controlling the transmission device (a) to enable the electro-rheological fluid sac (6) on the rotating roller (3) to gradually cling to and recover from an initial contraction state and lean against the outer periphery of the cable, and forming uniform and comprehensive extrusion on the outer periphery of the cable;
s3, starting the devices, conveying and limiting the cables by the two conveying devices (a), finishing coating by the coating device (b), finishing cooling by the cooling device (c), and finishing winding by the winding device (d);
the cable insulating layer coating method also relates to a coating machine which comprises a conveying device (a), a coating device (b), a cooling device (c) and a winding device (d), wherein the conveying device (a), the coating device (b), the cooling device (c) and the winding device (d) are all arranged on a workbench, and the cable to be coated sequentially passes through the conveying device (a), the coating device (b), the cooling device (c), the conveying device (a) and the winding device (d), and is characterized in that the conveying device (a) comprises a support frame (1), a conveying motor (2) is fixedly connected to the outer side of the support frame (1), two rotating rollers (3) are rotatably connected to the inner side of the support frame (1), one ends of the two rotating rollers (3) respectively penetrate through the support frame (1) and are coaxially and fixedly connected with a gear (4), the two gears (4) are meshed with each other, and the output end of the transmission motor (2) is coaxially and fixedly connected to one gear (4);
an annular groove (5) is formed in the outer periphery of the middle of the rotating roller (3), inner cavities (8) are formed in the inner portions of the two ends of the rotating roller, electrorheological fluid bags (6) are fixedly connected in the annular groove (5), conductive electrodes (7) are fixedly connected on the two sides of the annular groove, electrorheological fluid is filled in the electrorheological fluid bags (6), the two ends of the electrorheological fluid bags (6) are respectively communicated with the two inner cavities (8), pistons (9) are hermetically and slidably connected in the two inner cavities (8), electric telescopic rods (10) are fixedly connected on the sides far away from the electrorheological fluid bags (6), one ends of the two pistons (9) far away from the electrorheological fluid bags (6) are fixedly connected to the output end of each electric telescopic rod (10), and pressure detection sheets (11) are fixedly connected to the;
the conveying motor (2), the conductive electrode (7), the electric telescopic rod (10) and the pressure detection piece (11) are electrically connected with a control device, and the control device is arranged on the workbench.
2. A method for coating an insulating layer of a cable according to claim 1, wherein the coating means (b), the cooling means (c) and the winding means (d) are of the prior art.
3. A method for coating an insulating layer of a cable according to claim 1, wherein the capsule (6) has an elasticity decreasing from the middle to the two ends.
4. A method for coating an insulating layer on a cable according to claim 1, wherein the difference between the inner and outer diameters of the annular groove (5) is greater than the diameter of the cable to be coated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010824874.4A CN111968794A (en) | 2020-08-17 | 2020-08-17 | Cable insulating layer coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010824874.4A CN111968794A (en) | 2020-08-17 | 2020-08-17 | Cable insulating layer coating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111968794A true CN111968794A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010824874.4A Withdrawn CN111968794A (en) | 2020-08-17 | 2020-08-17 | Cable insulating layer coating method |
Country Status (1)
| Country | Link |
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| CN (1) | CN111968794A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722609A (en) * | 2023-01-26 | 2023-03-03 | 常州安耐特电缆有限公司 | Eccentric adjusting device |
| CN116705427A (en) * | 2023-06-06 | 2023-09-05 | 广州南洋电缆集团有限公司 | Polypropylene cable intelligent manufacturing system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139813A (en) * | 1995-07-06 | 1997-01-08 | 中国科学院物理研究所 | Doped strontium titanate current liquid and preparation method |
| CN101558459A (en) * | 2007-03-30 | 2009-10-14 | 古河电气工业株式会社 | Method and apparatus for producing insulated wire |
| CN103698865A (en) * | 2013-11-14 | 2014-04-02 | 江苏南方通信科技有限公司 | Production line and production technology for bonding central pipe type optical cable sleeve |
| CN104690193A (en) * | 2013-12-04 | 2015-06-10 | 中国直升机设计研究所 | Automatic cable unloading device |
| CN109003750A (en) * | 2018-07-27 | 2018-12-14 | 钟晓梅 | A kind of electromagnetic wire high speed lacquering device and application method |
| CN109623454A (en) * | 2018-12-11 | 2019-04-16 | 江阴市惠尔信精密装备股份有限公司 | A kind of ER fluid clamping tool of light-duty low noise gear-box |
| CN110429524A (en) * | 2019-08-15 | 2019-11-08 | 朱华军 | High voltage cable prosthetic device |
| CN209980860U (en) * | 2019-06-11 | 2020-01-21 | 任丘市鸿瑞电讯器材有限公司 | Aluminum stranded wire threading processing device |
| CN210156180U (en) * | 2019-09-17 | 2020-03-17 | 湖南金龙国际铜业有限公司 | Preheating device for aluminum cable sleeve |
| CN210791261U (en) * | 2019-09-04 | 2020-06-19 | 富维薄膜（山东）有限公司 | Film splitter is used in film production |
-
2020
- 2020-08-17 CN CN202010824874.4A patent/CN111968794A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139813A (en) * | 1995-07-06 | 1997-01-08 | 中国科学院物理研究所 | Doped strontium titanate current liquid and preparation method |
| CN101558459A (en) * | 2007-03-30 | 2009-10-14 | 古河电气工业株式会社 | Method and apparatus for producing insulated wire |
| CN103698865A (en) * | 2013-11-14 | 2014-04-02 | 江苏南方通信科技有限公司 | Production line and production technology for bonding central pipe type optical cable sleeve |
| CN104690193A (en) * | 2013-12-04 | 2015-06-10 | 中国直升机设计研究所 | Automatic cable unloading device |
| CN109003750A (en) * | 2018-07-27 | 2018-12-14 | 钟晓梅 | A kind of electromagnetic wire high speed lacquering device and application method |
| CN109623454A (en) * | 2018-12-11 | 2019-04-16 | 江阴市惠尔信精密装备股份有限公司 | A kind of ER fluid clamping tool of light-duty low noise gear-box |
| CN209980860U (en) * | 2019-06-11 | 2020-01-21 | 任丘市鸿瑞电讯器材有限公司 | Aluminum stranded wire threading processing device |
| CN110429524A (en) * | 2019-08-15 | 2019-11-08 | 朱华军 | High voltage cable prosthetic device |
| CN210791261U (en) * | 2019-09-04 | 2020-06-19 | 富维薄膜（山东）有限公司 | Film splitter is used in film production |
| CN210156180U (en) * | 2019-09-17 | 2020-03-17 | 湖南金龙国际铜业有限公司 | Preheating device for aluminum cable sleeve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115722609A (en) * | 2023-01-26 | 2023-03-03 | 常州安耐特电缆有限公司 | Eccentric adjusting device |
| CN115722609B (en) * | 2023-01-26 | 2023-08-08 | 常州安耐特电缆有限公司 | Eccentric adjusting device |
| CN116705427A (en) * | 2023-06-06 | 2023-09-05 | 广州南洋电缆集团有限公司 | Polypropylene cable intelligent manufacturing system |
| CN116705427B (en) * | 2023-06-06 | 2023-12-26 | 广州南洋电缆集团有限公司 | Polypropylene cable intelligent manufacturing system |
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Application publication date: 20201120 |