CN114496417A - Painting process of enameled wire and vertical suspension mold - Google Patents
Painting process of enameled wire and vertical suspension mold Download PDFInfo
- Publication number
- CN114496417A CN114496417A CN202210186561.XA CN202210186561A CN114496417A CN 114496417 A CN114496417 A CN 114496417A CN 202210186561 A CN202210186561 A CN 202210186561A CN 114496417 A CN114496417 A CN 114496417A
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- China
- Prior art keywords
- painting
- mold
- enameled wire
- suspension
- insulating paint
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000000725 suspension Substances 0.000 title claims abstract description 53
- 238000007591 painting process Methods 0.000 title claims abstract description 15
- 238000010422 painting Methods 0.000 claims abstract description 126
- 239000003973 paint Substances 0.000 claims abstract description 46
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007790 scraping Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005339 levitation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 230000005484 gravity Effects 0.000 description 5
- 239000011148 porous material Substances 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
Images
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
- H01B13/065—Insulating conductors with lacquers or enamels
-
- 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
- H01B13/0036—Details
-
- 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
- H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Coating Apparatus (AREA)
Abstract
The invention discloses a painting process of an enameled wire, wherein the surface of a copper wire is vertically upwards penetrated through a first painting mold after being coated with insulating paint, and the insulating paint on the surface of the copper wire is scraped by the first painting mold for one time, so that an insulating paint layer with a specified thickness is formed on the surface of the copper wire; and then, the enameled wire vertically and upwards passes through the second painting mold, the second painting mold is used for scraping the insulating paint layer on the surface of the enameled wire A for the second time, and the second painting mold is in a free suspension state when being scraped, so that the insulating paint layer with uniform thickness is formed on the surface of the copper wire. The vertical suspension mould comprises a second painting mould and a first painting mould which are arranged side by side from top to bottom, wherein a fixing frame is connected to the outside of the first painting mould, and a suspension frame is connected to the outside of the second painting mould in a sliding manner. The invention can avoid friction resistance of the painting mold in the painting process, and has the characteristics of good suspension effect and high painting uniformity.
Description
Technical Field
The invention relates to a painting process of an enameled wire, in particular to a painting process of an enameled wire and a vertical suspension mold.
Background
In order to improve the painting uniformity of the enameled wire, at present, the enameled wire is painted by adopting a painting mold, when the enameled wire is used, insulating paint is firstly coated on the surface of a copper wire through a painting roller, then the enameled wire coated with a paint film passes through the painting mold, and redundant paint on the surface of the enameled wire is removed by the painting mold, so that the control of the thickness of the paint film is realized. However, because there are some angles often between the guide rollers on both sides of the painting mold, and the enameled wire can also form the runout in multiple directions in the wiring process, the painting mold also needs to have the function of self-centering, namely the mold can swing arbitrarily along with the change of the wiring direction of the enameled wire, thereby avoiding the difference of the thickness of the left side and the right side of the paint film caused by the fact that the enameled wire penetrates through the mold at a bending angle.
When the enameled wire passes through the painting mold, a paint film on the surface of the enameled wire can impact the painting mold along the routing direction, so that the painting mold moves along with the enameled wire; the outer side of the painting mold is provided with a corresponding fixing frame, and the fixing frame is used for limiting the painting mold to ensure that the painting mold keeps the axial position fixed. However, with the gradual improvement of the environmental protection requirement, the solid content and the viscosity of the insulating varnish are increased, so that the enameled wire can exert larger impact force on the painting mold in the wiring process, the painting mold is tightly attached to the fixed frame under the action of the impact force and forms larger friction resistance, and the acting force after the enameled wire is deflected is not enough to drive the mold to move horizontally, so that the self-positioning function of the mold fails. Aiming at the problem, at present, some manufacturers limit the weight of the painting mold in the vertical painting machine to achieve the required self-positioning effect, namely, the enameled wire vertically passes through the painting mold from bottom to top during routing, and the weight of the painting mold is limited to enable the gravity of the mold and the impact force applied by the enameled wire to offset each other, so that the painting mold is kept in a suspended state. However, when the copper wire is painted, the copper wire is generally painted by rotating the painting roller, so that the painting amount on the surface of the copper wire can be changed along with factors such as the environmental temperature and the position of the copper wire; the painting amount of a paint film on the surface of the copper wire can cause the change of the impact force on the painting mold after being changed, so that the impact force can lose the mutual balance with the painting mold with constant gravity, the problem of extrusion limit or falling of the painting mold is caused, and the suspension effect can not be maintained.
Therefore, a painting mold with good suspension effect and high painting uniformity is needed.
Disclosure of Invention
The invention aims to provide a painting process of an enameled wire and a vertical suspension mould. It has the characteristics of good suspension effect and high painting uniformity.
The technical scheme of the invention is as follows: a painting process of an enameled wire comprises the following steps:
the method comprises the following steps that firstly, the surface of a copper wire vertically and upwards passes through a first painting mold after being coated with insulating paint, the insulating paint on the surface of the copper wire is scraped by the first painting mold for one time, so that an insulating paint layer with a specified thickness is formed on the surface of the copper wire, and an enameled wire A is obtained;
and secondly, vertically and upwards penetrating the enameled wire A through a second painting mold, secondarily scraping the insulating paint layer on the surface of the enameled wire A by the second painting mold, wherein the second painting mold is in a free suspension state during scraping, so that the insulating paint layer with uniform thickness is formed on the surface of the copper wire, and the finished enameled wire is obtained.
In the painting process for the enameled wire, the first painting mold is in a fixed state when being scraped.
In the painting process of the enameled wire, the viscosity of the insulating paint on the surface of the copper wire in the step I is 2300-2700 CPS.
In the painting process of the enameled wire, the aperture of the first painting mold is 70-90 μm larger than that of the second painting mold.
The vertical suspension mold used in the painting process of the enameled wire comprises a second painting mold and a first painting mold which are arranged side by side from top to bottom, wherein a fixing frame is connected to the outside of the first painting mold, and a suspension frame is connected to the outside of the second painting mold in a sliding manner.
In the vertical suspension mold, the second painting mold comprises a mold core, a mold sleeve is connected to the outside of the mold core, and the outside of the mold sleeve is connected with the suspension frame through a stepped groove in a sliding manner.
In the vertical suspension mold, the suspension frame is provided with the suspension channel, the middle part of the step groove is positioned in the suspension channel and is mutually attached to the suspension frames at two sides, and the side walls at two sides of the suspension frame and two ends of the step groove are provided with intervals.
Compared with the prior art, the invention has the following characteristics:
(1) according to the invention, the insulating paint on the surface of the copper wire is scraped by the first painting mold, so that an insulating paint layer with a specified thickness can be formed on the surface of the copper wire, and the limit of impact force applied by the enameled wire to the second painting mold during wiring is realized by combining the viscosity of the insulating paint; after the impact force applied to the second painting mold is fixed, an operator can adjust the weight of the second painting mold based on the impact force, so that the gravity of the second painting mold can be offset with the impact force of the enameled wire, and the suspension effect of the second painting mold is ensured;
(2) the first painting mold is positioned by the fixing frame, so that the position stability of the first painting mold when the insulating paint layer is scraped can be ensured, and the deviation of the first painting mold caused by the change of impact force is avoided; when the thicknesses of the two sides of the insulating paint layer on the surface of the enameled wire are different after the insulating paint layer is scraped by the first painting mold, the insulating paint layer can be reshaped by the second painting mold with a small aperture, so that the uniformity of the paint layer of the insulating paint layer can be ensured after the second painting mold paints in a suspension state, and the painting effect of the enameled wire is further improved;
(3) through the structural optimization of the second painting mold and the suspension frame, the second painting mold can slide in the suspension channel along two directions, and the suspension and self-positioning effects of the second painting mold are ensured; through the structural matching of the mold core and the mold sleeve, a manufacturer can customize the mold sleeves with different weights according to different impact forces, so that the suspension stability of the second painting mold under different working conditions is realized, and the universality of the invention is improved;
therefore, the invention has the characteristics of good suspension effect and high painting uniformity.
Drawings
Fig. 1 is a schematic structural view of the present invention.
The labels in the figures are: 1-a first painting mold, 2-a second painting mold, 3-a fixed frame, 4-a suspension frame, 5-a suspension channel, 201-a mold core, 202-a mold sleeve and 203-a step groove.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Examples are given. A painting process of an enameled wire comprises the following steps:
the method comprises the following steps that firstly, the surface of a copper wire vertically and upwards passes through a first painting mold after being coated with insulating paint, the insulating paint on the surface of the copper wire is scraped by the first painting mold for one time, so that an insulating paint layer with a specified thickness is formed on the surface of the copper wire, and an enameled wire A is obtained;
secondly, the enameled wire A vertically and upwards passes through the second painting mold, the second painting mold carries out secondary scraping on the insulated paint layer on the surface of the enameled wire A, the vertical and upwards impact force applied to the second painting mold by the enameled wire during wiring is the same as the gravity of the second painting mold, so that the second painting mold is in a free suspension state during scraping, and the insulated paint layer with uniform thickness is formed on the surface of the copper wire, and the finished enameled wire is obtained.
The first painting mold is in a fixed state when scraped off.
In the step I, the insulating paint on the surface of the copper wire is polyester imide paint with the solid content of 45%, and the viscosity of the insulating paint is 2500 CPS.
The pore diameter of the first painting mold is greater than the pore diameter of the second painting mold by 80 μm.
The vertical suspension mold for the enameled wire painting process is formed as shown in figure 1, and comprises a second painting mold 2 and a first painting mold 1 which are arranged side by side from top to bottom, wherein the middle parts of the second painting mold 2 and the first painting mold 1 are respectively provided with a painting hole for the enameled wire to pass through, the outside of the first painting mold 1 is connected with a fixing frame 3, and the outside of the second painting mold 2 is connected with a suspension frame 4 in a sliding manner.
The second painting mold 2 comprises a mold core 201, a mold sleeve 202 is connected to the exterior of the mold core 201, and the exterior of the mold sleeve 202 is slidably connected with the suspension frame 4 through a stepped groove 203.
Suspension channel 5 is arranged on suspension frame 4, the middle part of step groove 203 is located suspension channel 5 and is laminated with suspension frame 4 on both sides, and the both sides lateral wall of suspension frame 4 and the both ends of step groove 203 leave the interval.
The working principle of the invention is as follows: when the device is used, the device is arranged between a bottom guide rail and an upper guide roller of a vertical painting machine, so that an enameled wire vertically passes through a first painting mold 1 and a second painting mold 2 from bottom to top after painting. When the enameled wire passes through the first painting mold 1, the excess insulating paint on the surface of the enameled wire is removed through the painting hole in the first painting mold 1, so that an insulating paint layer with a specified thickness is formed on the surface of the enameled wire. The enameled wire enters the second painting mold 2 after passing through the first painting mold 1, and the second painting mold 2 scrapes off the insulating paint layer on the surface of the enameled wire for the second time. The lacquering amount of the enameled wire after being processed by the first lacquering die 1 is a constant value, so that the impact force applied to the second lacquering die 2 by the enameled wire in the wiring process is kept consistent; the manufacturer can set the die sleeve 202 with a corresponding weight based on the impact force, so that the impact force exerted by the enameled wire on the second painting mold 2 is offset with the gravity of the second painting mold 2, that is, the second painting mold 2 is ensured to keep free suspension in the working state, and the die sleeve is not abutted to the suspension frame 4 due to the excessive impact force. After the second painting mold 2 is suspended, the jumping and the deviation of the enameled wire can drive the second painting mold 2 to move freely in the suspension channel 5, so that the enameled wire can pass through the center of the mold core 201 linearly, and the uneven thickness of a paint film caused by bending is effectively avoided.
It was tested that when the viscosity of the insulating varnish was within the range of ± 200CPS, the manufacturer could keep the second painting mold 2 in a suspended state by adjusting the difference in pore diameter between the second painting mold 2 and the first painting mold 1 within the range of ± 10 μm (i.e., by replacing the first painting mold 1). When the viscosity of the insulating varnish varies too much, the manufacturer can restore the second painting mold to the suspended state by replacing the die case 202 with a different weight. So that the stable lacquering of the enamelled wires with different viscosities is realized by the invention through the cooperation of the first lacquering mould 1 and the second lacquering mould 2.
Claims (7)
1. A painting process of an enameled wire is characterized by comprising the following steps:
the method comprises the following steps that firstly, the surface of a copper wire vertically and upwards passes through a first painting mold after being coated with insulating paint, the insulating paint on the surface of the copper wire is scraped by the first painting mold for one time, so that an insulating paint layer with a specified thickness is formed on the surface of the copper wire, and an enameled wire A is obtained;
and secondly, vertically and upwards penetrating the enameled wire A through a second painting mold, secondarily scraping the insulating paint layer on the surface of the enameled wire A by the second painting mold, wherein the second painting mold is in a free suspension state during scraping, so that the insulating paint layer with uniform thickness is formed on the surface of the copper wire, and the finished enameled wire is obtained.
2. The process according to claim 1, wherein: the first painting mold is in a fixed state when scraped.
3. The process according to claim 1, wherein: in the step I, the viscosity of the insulating paint on the surface of the copper wire is 2300-2700 CPS.
4. The process according to claim 1, wherein: the aperture of the first painting mold is larger than that of the second painting mold by 70-90 mu m.
5. The vertical levitation mold for a process of painting an enameled wire according to any one of claims 1-4, characterized in that: the painting device comprises a second painting mold (2) and a first painting mold (1) which are arranged side by side from top to bottom, wherein a fixing frame (3) is connected to the outside of the first painting mold (1), and a suspension frame (4) is connected to the outside of the second painting mold (2) in a sliding mode.
6. The vertical suspension mold of claim 5, wherein: the second painting mold (2) comprises a mold core (201), a mold sleeve (202) is connected to the outside of the mold core (201), and the outside of the mold sleeve (202) is connected with the suspension frame (4) in a sliding mode through a step groove (203).
7. The vertical suspension mold of claim 6, wherein: suspension passageway (5) are equipped with on suspension frame (4), the middle part of step groove (203) is located suspension passageway (5) and laminate each other between suspension frame (4) with both sides, and the both sides lateral wall of suspension frame (4) and the both ends of step groove (203) leave the interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186561.XA CN114496417A (en) | 2022-02-28 | 2022-02-28 | Painting process of enameled wire and vertical suspension mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186561.XA CN114496417A (en) | 2022-02-28 | 2022-02-28 | Painting process of enameled wire and vertical suspension mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114496417A true CN114496417A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210186561.XA Pending CN114496417A (en) | 2022-02-28 | 2022-02-28 | Painting process of enameled wire and vertical suspension mold |
Country Status (1)
| Country | Link |
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| CN (1) | CN114496417A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995482A (en) * | 2024-04-07 | 2024-05-07 | 西安聚能超导线材科技有限公司 | Rapid forming and insulating method of superconducting wire |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056551U (en) * | 1991-07-11 | 1993-01-29 | タツタ電線株式会社 | Enamel wire paint applicator |
| JPH0515227U (en) * | 1991-08-02 | 1993-02-26 | 昭和電線電纜株式会社 | Varnishing die |
| JPH0551479U (en) * | 1991-12-24 | 1993-07-09 | 昭和電線電纜株式会社 | Die coating die for filament |
| JPH06231635A (en) * | 1993-02-09 | 1994-08-19 | Furukawa Electric Co Ltd:The | Paint applicating device for manufacturing enamel wire |
| CN102921594A (en) * | 2011-08-10 | 2013-02-13 | 浙江思博恩新材料科技有限公司 | Vertical coating module of resin diamond wire |
| JP2014144384A (en) * | 2013-01-25 | 2014-08-14 | Hitachi Metals Ltd | Coating applying apparatus, coating applying method and manufacturing method of enamel wire |
| CN109273174A (en) * | 2018-08-25 | 2019-01-25 | 天津精达里亚特种漆包线有限公司 | A kind of electromagnetic wire from middle pericardium paint mold |
| CN111161926A (en) * | 2019-12-20 | 2020-05-15 | 铜陵精远线模有限责任公司 | A scrape lacquer mould for enameled wire |
| CN113130143A (en) * | 2021-04-07 | 2021-07-16 | 铜陵精迅特种漆包线有限责任公司 | Floated painting system is used to vertical enamelling machine |
-
2022
- 2022-02-28 CN CN202210186561.XA patent/CN114496417A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH056551U (en) * | 1991-07-11 | 1993-01-29 | タツタ電線株式会社 | Enamel wire paint applicator |
| JPH0515227U (en) * | 1991-08-02 | 1993-02-26 | 昭和電線電纜株式会社 | Varnishing die |
| JPH0551479U (en) * | 1991-12-24 | 1993-07-09 | 昭和電線電纜株式会社 | Die coating die for filament |
| JPH06231635A (en) * | 1993-02-09 | 1994-08-19 | Furukawa Electric Co Ltd:The | Paint applicating device for manufacturing enamel wire |
| CN102921594A (en) * | 2011-08-10 | 2013-02-13 | 浙江思博恩新材料科技有限公司 | Vertical coating module of resin diamond wire |
| JP2014144384A (en) * | 2013-01-25 | 2014-08-14 | Hitachi Metals Ltd | Coating applying apparatus, coating applying method and manufacturing method of enamel wire |
| CN109273174A (en) * | 2018-08-25 | 2019-01-25 | 天津精达里亚特种漆包线有限公司 | A kind of electromagnetic wire from middle pericardium paint mold |
| CN111161926A (en) * | 2019-12-20 | 2020-05-15 | 铜陵精远线模有限责任公司 | A scrape lacquer mould for enameled wire |
| CN113130143A (en) * | 2021-04-07 | 2021-07-16 | 铜陵精迅特种漆包线有限责任公司 | Floated painting system is used to vertical enamelling machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117995482A (en) * | 2024-04-07 | 2024-05-07 | 西安聚能超导线材科技有限公司 | Rapid forming and insulating method of superconducting wire |
| CN117995482B (en) * | 2024-04-07 | 2024-06-25 | 西安聚能超导线材科技有限公司 | Rapid forming and insulating method of superconducting wire |
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Address after: 313000 No. 135 Waixi Road, South Taihu High-tech Industrial Park, Wuxing District, Huzhou City, Zhejiang Province Applicant after: Xiandeng Gaoke Electric Co.,Ltd. Address before: 313000 No. 135 Waixi Road, South Taihu High-tech Industrial Park, Wuxing District, Huzhou City, Zhejiang Province Applicant before: XIANDENG HIGH-TECH ELECTRIC CO.,LTD. |