CN112489890B - Painting device and painting method for enameled copper flat wire - Google Patents
Painting device and painting method for enameled copper flat wire Download PDFInfo
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- CN112489890B CN112489890B CN202011414198.XA CN202011414198A CN112489890B CN 112489890 B CN112489890 B CN 112489890B CN 202011414198 A CN202011414198 A CN 202011414198A CN 112489890 B CN112489890 B CN 112489890B
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0241—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes
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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
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
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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
- H01B13/065—Insulating conductors with lacquers or enamels
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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
- H01B13/30—Drying; Impregnating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/30—Reducing waste in manufacturing processes; Calculations of released waste quantities
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a painting device and a painting method for an enameled copper flat wire, and the painting device comprises a mold core, a sheath and a mold frame, wherein the center of the mold core is provided with a painting hole arranged along the axial direction, the painting hole comprises a painting section and a gradually expanding section, the painting section is a rectangular hole with the area larger than the cross section of the copper flat wire, the gradually expanding section is a gradually expanding hole expanding towards the outer side, the upper end of the gradually expanding section is connected with the lower end of the painting section, the center of the sheath is provided with a cavity hole matched with the mold core, the mold core is detachably arranged in the cavity hole of the sheath, the outer side of the sheath is provided with a groove matched with the mold frame, and the outer side of the sheath is clamped in the mold frame through the groove. The invention has simple structure and convenient operation, paint film coating is carried out on the copper flat wire through the mold core, and paint is uniformly distributed in the painting section and is uniformly coated on the outer side of the copper flat wire, thereby improving the quality of the paint film.
Description
Technical Field
The invention relates to a painting device and a painting method thereof, in particular to a painting device and a painting method for an enameled copper flat wire, and belongs to the field of cable production.
Background
The vertical enamelling machine is automatic painting and drying equipment which is used for annealing, cooling, cleaning, painting and baking a bare copper wire to be processed to finally enable a paint film to be uniformly and stably solidified on the surface of the bare copper wire. The traditional enamelled copper flat wire adopts a felt painting method in a painting mode with the production heat level of more than 130.
In the painting process, due to the adhesion of the insulating paint, a large amount of insulating paint is attached to the surface of the conductor after the bare copper flat wire is painted, the thickness of a paint film can be manually controlled after the felt is painted, but the accurate control cannot be realized, and the bare copper flat wire needs to be manually monitored and adjusted from time to time; for some insulating paints with higher viscosity, the fluidity is lower, so that the insulating paint is not fully covered under the influence of surface tension in the process of painting the felt, and a cured paint film is not uniform and has poor performance; in addition, although the felt painting method can also produce qualified enameled flat copper wire products, the viscosity of the insulating paint used for the felt painting is relatively low, so that the insulating paint needs to be diluted by a solvent, and the consumption of the solvent is caused; in the painting process, the felt wires often fall off and are attached to the surface of a paint film, and when the enameled flat copper wire is baked, particles are easily formed and remain on the surface of a finished product, so that the surface quality is affected, and finally the surface smoothness and uniformity of the enameled flat copper wire are reduced.
Disclosure of Invention
The invention aims to provide a painting device and a painting method for an enameled rectangular copper wire, and improve the quality of a paint film of the enameled rectangular copper wire.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an enameled flat copper wire painting device which characterized in that: contain the mold core, sheath and mould frame, the center of mold core is opened has one along the paint coating hole of axial setting, the paint coating hole contains the painting section and gradually expands the section, the painting section is greater than the rectangular hole in copper flat section for the area, gradually expand the section for the gradually expand hole of outside expansion and the upper end and the painting section lower extreme of gradually expanding the section are connected, the sheath center is opened has the appearance chamber hole that matches with the mold core, the setting can be dismantled at the appearance chamber of sheath downthehole to the mold core, the sheath outside is provided with the recess that mould frame matches and the sheath outside is passed through the recess card and is established in mould frame.
Further, the cross section of the painting section is rectangular, and round chamfers are arranged at four corners of the rectangle.
Further, the side of the painting section is convex outwards in an arc-shaped surface.
Furthermore, hold the chamber hole and be the shoulder hole, the shoulder hole contains upside aperture and downside macropore, and the lower extreme of upside aperture is connected with downside macropore upper end, and upside aperture internal diameter is less than the external diameter of mold core, and the internal diameter of downside macropore matches with the external diameter of mold core, and the mold core inserts in the downside macropore and fixes from chamber hole lower extreme.
Further, the mold core is locked and fixed through a clamp spring.
Furthermore, an annular groove matched with the thickness of the clamp spring is formed in the side face of the large hole in the lower side, and the clamp spring is clamped in the annular groove after the mold core is inserted into the large hole in the lower side to lock and fix the mold core in the large hole in the lower side.
Further, the die frame is a U-shaped support.
Further, the recess in the sheath outside is located the sheath upside, and the groove width of recess matches with the thickness of mould frame, and the sheath passes through the recess card to be established in the U type inslot of mould frame.
Furthermore, one end of the die frame is provided with a mounting threaded hole.
A method for painting an enameled flat copper wire is characterized by comprising the following steps:
the method comprises the following steps: preparing a bare copper flat wire: drawing the high-purity oxygen-free copper rod into a high-precision oxygen-free copper flat wire by a flat wire drawing machine through a high-crystal drawing die, wherein the drawing speed is 80-120m/min, and the concentration of an emulsion is controlled within the range of 6.5-7.5% in the drawing process;
step two: installing a die frame: horizontally placing the die frame on the corresponding position of an enamelling cylinder of an enamelling machine, and fastening one end of the die frame by using screws;
step three: assembling a painting mold: selecting a mold core with proper specification according to the size specification of the bare copper flat wire and placing the mold core into a sheath, then placing a clamp spring into an annular groove in the sheath to fix the mold core, and then placing the assembled painting mold into a U-shaped groove of a mold frame;
step four: annealing bare copper wires: the bare copper flat wire obtained in the first step is subjected to an annealing furnace of an enameling machine, so that the bare copper flat wire is converted from a hard state to a soft state, and then the conductor is cleaned, cooled and dried;
step five: painting: sequentially threading the annealed soft bare copper flat wire in the fourth step through a flat wire enamelling machine according to the sequence of painting passes, and then adjusting the production speed according to corresponding process parameters to produce an enamelled copper flat wire product, wherein the number of painting passes is 10-13;
step six: and (3) inspection and test: respectively taking a first piece, a middle piece and a tail piece of the enameled winding wire product, and inspecting the specification size and various performances of the enameled winding wire product according to the regulation of GB/T7095.1-2008;
step seven: packaging and warehousing: packaging and warehousing the qualified enameled winding wire products
Compared with the prior art, the invention has the following advantages and effects: the enamelled copper flat wire painting device is simple in structure and convenient to operate, paint film coating is carried out on the copper flat wire through the mold core, and paint is uniformly distributed in the painting section and is uniformly coated on the outer side of the copper flat wire; the mold core, the sheath and the bracket are separately arranged, and when the copper flat wires with different specifications are painted, only the mold core needs to be replaced; the application range of the insulating paint is wide, the viscosity requirement is low, the viscosity of the insulating paint does not need to be adjusted through a solvent, the use of the solvent is reduced, and the production cost and the environmental pollution are reduced; in the production process, the attention and the adjustment of the thickness of a paint film are not needed at any time, so that the labor intensity is greatly reduced.
Drawings
FIG. 1 is a schematic view of an apparatus for painting an enameled rectangular copper wire according to the present invention.
FIG. 2 is a top view of an apparatus for painting enameled rectangular copper wire according to the present invention.
FIG. 3 is a cross-sectional view of an apparatus for painting an enameled rectangular copper wire according to the present invention.
FIG. 4 is a flow chart of a method of painting an enameled flat copper wire according to the present invention.
Detailed Description
To elaborate on technical solutions adopted by the present invention to achieve predetermined technical objects, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only partial embodiments of the present invention, not all embodiments, and technical means or technical features in the embodiments of the present invention may be replaced without creative efforts, and the present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in fig. 1, 2 and 3, the painting device for the enameled copper flat wire comprises a mold core 1, a sheath 2 and a mold frame 3, wherein a painting hole is formed in the center of the mold core 1 and is arranged along the axial direction, the painting hole comprises a painting section 4 and a gradually expanding section 5, the painting section 4 is a rectangular hole with an area larger than the cross section of the copper flat wire, the gradually expanding section 5 is a gradually expanding hole expanding towards the outside, the upper end of the gradually expanding section 5 is connected with the lower end of the painting section 4, a cavity hole matched with the mold core 1 is formed in the center of the sheath 2, the mold core 1 is detachably arranged in the cavity hole of the sheath 2, a groove 6 matched with the mold frame 3 is formed in the outer side of the sheath 2, and the outer side of the sheath 2 is clamped in the mold frame 3 through the groove 6.
The cross section of the painting section 4 is rectangular, round chamfers are arranged at four corners of the rectangle, the arrangement of the round chamfers ensures that a painting film on the outer side of the copper flat wire is more round and smooth, and the phenomenon that the local painting thickness is uneven is avoided. The side of the painting section 4 is arc-shaped and protrudes outwards, and the structure can ensure that the insulating paint can be distributed uniformly in the painting section 4 in enough space.
The cavity containing hole is a stepped hole, the stepped hole comprises an upper small hole 7 and a lower large hole 8, the lower end of the upper small hole 7 is connected with the upper end of the lower large hole 8, the inner diameter of the upper small hole 7 is smaller than the outer diameter of the mold core 1, the inner diameter of the lower large hole 8 is matched with the outer diameter of the mold core 1, and the mold core 1 is inserted into the lower large hole 8 from the lower end of the cavity containing hole and is fixed.
The mold core 1 is locked and fixed by a clamp spring 9. An annular groove matched with the clamp spring 9 in thickness is formed in the side face of the lower-side large hole 8, the clamp spring 9 is clamped in the annular groove after the mold core 1 is inserted into the lower-side large hole 8, and the mold core 1 is locked and fixed in the lower-side large hole 8. Through the mode with mould core 1 and 2 detachable of sheath, when the production of the copper flat wire of different specifications is carried out to needs, only need to change corresponding mould core 1 can, the cost is lower to the fixed mode easy dismounting of jump ring is and the installation is stable, does not receive mechanical vibration to influence, uses for a long time and also can not cause the not hard up of mould core 1.
The die frame 3 is a U-shaped bracket. The recess 6 in the 2 outsides of sheath is located the 2 upside of sheath, and the groove width of recess 6 matches with the thickness of mould frame 3, and the U type inslot at mould frame 3 is established through recess 6 card to sheath 2. One end of the die frame 3 is provided with a mounting threaded hole 10.
A method for painting an enameled flat copper wire comprises the following steps:
the method comprises the following steps: preparing a bare copper flat wire: drawing the high-purity oxygen-free copper rod into a high-precision oxygen-free copper flat wire by a flat wire drawing machine through a high-crystal drawing die, wherein the drawing speed is 80-120m/min, and the concentration of an emulsion is controlled within the range of 6.5-7.5% in the drawing process, so that the functions of cooling, lubricating and cleaning are achieved;
step two: installing a painting mold frame: horizontally placing the die frame on the corresponding position of an enamelling cylinder of an enamelling machine, fastening one end of the die frame by using a screw, ensuring that the die frame can flexibly rotate in the left and right directions in the enamelling process, designing the die frame with a U-shaped groove, and ensuring that the front and back paying-off activities are flexible in the production process;
step three: assembling a painting mold: selecting a mold core 1 with proper specification according to the size specification of the bare copper flat wire and installing the mold core 1 into a sheath 2, then installing a clamp spring 9 into an annular groove in the sheath 2 to fix the mold core 1, ensuring that the mold core 1 can move freely and cannot loosen and fall off in the sheath 2, and then placing an assembled painting mold into a U-shaped groove of a mold frame;
step four: annealing bare copper wires: the bare copper flat wire obtained in the first step is subjected to an annealing furnace of an enameling machine, so that the bare copper flat wire is converted from a hard state to a soft state, and then the conductor is cleaned, cooled and dried;
step five: painting: sequentially threading the annealed soft bare copper flat wire in the fourth step through a flat wire enamelling machine according to the sequence of painting passes, and then adjusting the production speed according to corresponding process parameters to produce an enamelled copper flat wire product, wherein the number of painting passes is 10-13;
step six: and (3) inspection and test: respectively taking a first piece, a middle piece and a tail piece of the enameled winding wire product, and inspecting the specification size and various performances of the first piece, the middle piece and the tail piece according to relevant regulations of GB/T7095.1-2008;
step seven: packaging and warehousing: and packaging and warehousing the qualified enameled winding wire products for preparation for delivery.
The enamelled copper flat wire painting device is simple in structure and convenient to operate, paint film coating is carried out on the copper flat wire through the mold core, and paint is uniformly distributed in the painting section and is uniformly coated on the outer side of the copper flat wire; the mold core, the sheath and the bracket are separately arranged, and when the copper flat wires with different specifications are painted, only the mold core needs to be replaced; the application range of the insulating paint is wide, the viscosity requirement is low, the viscosity of the insulating paint does not need to be adjusted through a solvent, the use of the solvent is reduced, and the production cost and the environmental pollution are reduced; in the production process, the attention and the adjustment of the thickness of a paint film are not needed at any time, so that the labor intensity is greatly reduced.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (5)
1. The utility model provides an enameled flat copper wire painting device which characterized in that: the mold comprises a mold core, a sheath and a mold frame, wherein a painting hole arranged along the axial direction is formed in the center of the mold core, the painting hole comprises a painting section and a divergent section, the painting section is a rectangular hole with the area larger than the cross section of a copper flat wire, the divergent section is a divergent hole expanding towards the outer side, the upper end of the divergent section is connected with the lower end of the painting section, a containing cavity hole matched with the mold core is formed in the center of the sheath, the mold core is detachably arranged in the containing cavity hole of the sheath, a groove matched with the mold frame is formed in the outer side of the sheath, and the outer side of the sheath is clamped in the mold frame through the groove;
the cross section of the painting section is rectangular, and four corners of the rectangle are provided with round chamfers; the side surface of the painting section is convex outwards in an arc shape;
the cavity containing hole is a stepped hole, the stepped hole comprises an upper small hole and a lower large hole, the lower end of the upper small hole is connected with the upper end of the lower large hole, the inner diameter of the upper small hole is smaller than the outer diameter of the mold core, the inner diameter of the lower large hole is matched with the outer diameter of the mold core, and the mold core is inserted into the lower large hole from the lower end of the cavity containing hole and fixed; the mold core is locked and fixed through a clamp spring; the side surface of the lower side big hole is provided with an annular groove matched with the thickness of the clamp spring, and the clamp spring is clamped in the annular groove after the mold core is inserted into the lower side big hole to lock and fix the mold core in the lower side big hole.
2. The apparatus for painting an enameled rectangular copper wire according to claim 1, wherein: the mould frame is a U-shaped support.
3. The painting apparatus for enamelled copper flat wire according to claim 2, characterized in that: the groove in the outer side of the sheath is located on the upper side of the sheath, the groove width of the groove is matched with the thickness of the mold frame, and the sheath is clamped in a U-shaped groove of the mold frame through the groove.
4. The painting apparatus for enamelled copper flat wire according to claim 2, characterized in that: one end of the die frame is provided with a mounting threaded hole.
5. A painting method of the painting apparatus for the enameled rectangular copper wire according to any one of claims 1 to 4, which is characterized by comprising the steps of:
the method comprises the following steps: preparing a bare copper flat wire: drawing the high-purity oxygen-free copper rod into a high-precision oxygen-free copper flat wire by a flat wire drawing machine through a high-crystal drawing die, wherein the drawing speed is 80-120m/min, and the concentration of an emulsion is controlled within the range of 6.5-7.5% in the drawing process;
step two: installing a die frame: horizontally placing the die frame on the corresponding position of an enamelling cylinder of an enamelling machine, and fastening one end of the die frame by using screws;
step three: assembling a painting mold: selecting a mold core with proper specification according to the size specification of the bare copper flat wire and placing the mold core into a sheath, then placing a clamp spring into an annular groove in the sheath to fix the mold core, and then placing the assembled painting mold into a U-shaped groove of a mold frame;
step four: annealing bare copper wires: the bare copper flat wire obtained in the first step is subjected to an annealing furnace of an enameling machine, so that the bare copper flat wire is converted from a hard state to a soft state, and then the conductor is cleaned, cooled and dried;
step five: painting: sequentially threading the annealed soft bare copper flat wire in the fourth step through a flat wire enamelling machine according to the sequence of painting passes, and then adjusting the production speed according to corresponding process parameters to produce an enamelled copper flat wire product, wherein the number of painting passes is 10-13;
step six: and (3) inspection and test: respectively taking a first piece, a middle piece and a tail piece of the enameled winding wire product, and inspecting the specification size and various performances of the enameled winding wire product according to the regulation of GB/T7095.1-2008;
step seven: packaging and warehousing: and packaging and warehousing the qualified enameled winding wire products.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011414198.XA CN112489890B (en) | 2020-12-07 | 2020-12-07 | Painting device and painting method for enameled copper flat wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011414198.XA CN112489890B (en) | 2020-12-07 | 2020-12-07 | Painting device and painting method for enameled copper flat wire |
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| CN112489890A CN112489890A (en) | 2021-03-12 |
| CN112489890B true CN112489890B (en) | 2022-05-20 |
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| CN113903504B (en) * | 2021-10-09 | 2024-04-26 | 浙江弘城智造有限公司 | High-heat-level high-PDIV enameled rectangular copper wire for driving motor and preparation method thereof |
| CN115547588B (en) * | 2022-09-29 | 2023-12-01 | 科城铜业(英德)有限公司 | Horizontal high-speed enamelling machine painting die and painting process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200998705Y (en) * | 2006-10-20 | 2008-01-02 | 卢之云 | Tinting apparatus for self-positioning mould |
| CN201298401Y (en) * | 2008-11-05 | 2009-08-26 | 无锡环宇电磁线有限公司 | Separate mold for painting enamelled sheet wires |
| CN101650984B (en) * | 2009-06-09 | 2012-03-21 | 无锡锡洲电磁线有限公司 | Novel class-200 composite flat enamelled copper wire and method of producing same |
| JP5737628B2 (en) * | 2010-12-24 | 2015-06-17 | 日立金属株式会社 | Enamel wire manufacturing method |
| CN107958751B (en) * | 2017-11-14 | 2023-05-12 | 保定天威线材制造有限公司 | Paint mold frame capable of transversely and longitudinally moving and application method thereof |
| CN108281221A (en) * | 2017-11-30 | 2018-07-13 | 无锡友方电工股份有限公司 | A kind of super large width-thickness ratio small square enameled aluminium flat wire |
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