CN103354140B - A kind of paint feeding apparatus produced for fine enameled wire - Google Patents
A kind of paint feeding apparatus produced for fine enameled wire Download PDFInfo
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- CN103354140B CN103354140B CN201310316830.0A CN201310316830A CN103354140B CN 103354140 B CN103354140 B CN 103354140B CN 201310316830 A CN201310316830 A CN 201310316830A CN 103354140 B CN103354140 B CN 103354140B
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Abstract
The present invention discloses a kind of paint feeding apparatus produced for fine enameled wire, comprise storage paint case, back paint case, plunger displacement pump, plunger displacement pump enter to paint mouth by inhale paint pipe connect storage paint case, back paint case connects storage paint case by paint backflow tube, back paint case is built with the Jie Qi mechanism of band some roads parallel groove, and every one groove of Jie Qi mechanism is corresponding with an enamelled wire position to be painted; The lacquer export of plunger displacement pump connects a painting supervisor, and painting supervisor is connected with many painting arms, and the bottom of every root painting arm at least connects a shear thinning element; Described shear thinning element comprises stage casing capillary, is with bell-mouthed upper end and lower end, be connected to the two ends of stage casing capillary with bell-mouthed upper end and lower end and be connected, the horn mouth of described lower end is lacquer export, at least corresponding above lacquer export described in of the enamelled wire that every root is to be painted; The present invention effectively reduces paint fluid viscosity during japanning, improves the quality of enamelled wire paint, effectively improves paint work efficiency.
Description
Technical field
The present invention relates to the production equipment of enamelled wire, especially a kind of paint feeding apparatus produced for fine enameled wire.
Background technology
For enamelled wire product, traditionally wire diameter is called fine enameled wire at the enamelled wire of below 0.1mm, because the rapid growth of electronic manufacturing industry and electronic product are to the development in " light, thin, micro-" direction, facilitates the development of fine enameled wire industry.
At the bare copper wire Surface coating insulating varnish that wire diameter is tiny, its difficulty is higher, especially in the bag paint operation of ultra tiny wire diameter being less than below 0.04mm, requires that insulating varnish has higher mobility.Coated insulation paint is the key link of enamelled wire control of product quality, and after bare copper wire applies paint liquid, can wet paint film fully flow and eliminate the performance being coated with trace, and being called the levelability of paint liquid, is an important indicator in insulating varnish performance.Solvent of the viscosity of levelability and coating, surface tension and use etc. is relevant.The coating processes of ultra tiny enamelled wire, because wire diameter is very little, curvature is very large, requires more strict to the levelability of paint liquid.Generally, if the viscosity of insulating varnish liquid is less, mobility can be improved, in existing lacquering process, for reducing the viscosity of insulating varnish liquid, increase solvent ratios is normally relied on to realize, such as, for the insulating varnish of common wire diameter, resin content accounts for 35%, and solvent accounts for 65%.For the insulating varnish of glass-coated microwire, resin content accounts for 22%, and solvent accounts for 78%.But too increase solvent ratios, the resin content of paint liquid declines, and thixotropy also can decline, easily produce again paint liquid sagging phenomenon; In addition, solvent ratios increases, and the paint film of per pass japanning is thinner, and only have and increase japanning number of channels, just can reach film thickness requirement, this can cause again production efficiency to decline.
Existing enamelled wire paint feeding apparatus, generally comprise storage paint case, back paint case, Hydraulic pump, painting roller, painting roller vertically interval has some roads annular groove, painting roller is contained on back paint case, every one annular groove on painting roller is corresponding with an enamelled wire position to be painted, Hydraulic pump enters to paint mouth and connects storage paint case by inhaling paint pipe, and Hydraulic pump lacquer export connects back paint case by transmission pipe, and back paint case connects storage paint case by paint backflow tube.During work, the Lower Half of painting roller is immersed in below the paint liquid level of back paint case, full paint liquid is dipped in its groove, painting roller rotates, the paint liquid attached in groove also just delivers to the top of painting roller, some enamelled wires to be painted are respectively by this series of groove being moistened with paint liquid, and complete the work of painting, this operational method is also called the method for roller coat; And unnecessary paint liquid relies on gravity from the back paint case on top, flow back to the storage paint case being arranged in bottom, move in circles.But this paint feeding apparatus cannot change the viscosity of insulating varnish liquid in the conveying of paint liquid and cyclic process, also the mobility of insulating varnish liquid can not just be changed, for improving the mobility of insulating varnish liquid, can only be realized by the mode increasing solvent ratios, also just there is production efficiency lower and easily produce paint liquid sagging phenomenon and occur, reduce painting quality.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of paint feeding apparatus produced for fine enameled wire, effectively reduces paint fluid viscosity during japanning, improves the quality of enamelled wire paint, effectively improve paint work efficiency.
For achieving the above object, technical scheme of the present invention is: a kind of paint feeding apparatus produced for fine enameled wire, comprise storage paint case, back paint case, plunger displacement pump, plunger displacement pump enter to paint mouth by inhale paint pipe connect storage paint case, back paint case connects storage paint case by paint backflow tube, back paint case is built with the Jie Qi mechanism of band some roads parallel groove, and every one groove of Jie Qi mechanism is corresponding with an enamelled wire position to be painted; The lacquer export of plunger displacement pump connects a painting supervisor, and the paint end that goes out of painting supervisor is arranged on above back paint case, and the end that goes out to paint of painting supervisor is connected with many painting arms, and the bottom of every root painting arm at least connects a shear thinning element; Described shear thinning element comprises stage casing capillary and the bell-mouthed upper end of band and is with bell-mouthed lower end, with bell-mouthed upper end and be connected to the two ends of stage casing capillary with bell-mouthed lower end and be connected, the bell-mouthed upper end of described band is connected with the bottom of painting arm, the horn mouth of described lower end is lacquer export, at least corresponding above lacquer export described in of the enamelled wire that every root is to be painted; Painting supervisor is provided with filter.
The diameter of preferred described shear thinning element stage casing capillary endoporus is 0.4 ~ 1.5mm, and the length of stage casing capillary endoporus is 30 ~ 100mm.Because of stage casing capillary diameter of bore excessive time, the shear effect that is subject to of paint liquid is poor, and diameter is too small, and paint liquid flow resistance is too large, and both easily blocked, painting flow is restricted again; On the other hand, when the length of stage casing capillary endoporus is shorter, paint liquid is to flow through the elapsed-time standards in shear thinning element also short, and the shear effect that paint liquid is subject to is also poor; Otherwise, if the length of unilateral increase stage casing capillary, paint liquid flowing again can resistance too large.Therefore be relatively suitable for through testing above-mentioned preferred size.
When stage casing capillary pipe length is longer, the shear action that paint liquid is subject to is comparatively strong, but its paint delivery is restricted, and increase by 1 ~ 2 shear thinning element composition shear thinning elements combination can be adopted to improve paint delivery.
The flow velocity of preferred described shear thinning element stage casing capillary endoporus paint liquid is 2 ~ 6m/s.When paint flow velocity is enough large, the shear action that is subject to of paint liquid is stronger, the viscosity of paint liquid decline and the improvement of mobility just obvious, more suitable through testing above-mentioned velocity ratio.
Further improvement, described painting supervisor is provided with two cover filters, and two cover filters adopt and are installed in parallel.Be convenient to alternate operation, when a set of filter needs to safeguard or change, another set of can also continuation runs, and reduces the off-time.
Further improvement, the upper end of described shear thinning element is provided with the flange be connected with painting arm bottom.Facilitate the installation and removal of shear thinning element, improve maintainability.
Further improvement, is connected with antispray screen cloth below the lower end of described shear thinning element.Prevent paint liquid from splashing.
Further improvement, described antispray screen cloth to be connected with the lower end of shear thinning element by a gasket seal and to use a screen cloth compacting ring to be pressed in below shear thinning element lower end.Facilitate the installation of antispray screen cloth.
Preferred as one, described Jie Qi mechanism is roller, and roller vertically interval has some annular grooves.The rotation direction of described roller is consistent with the enamelled wire direction of motion to be painted.
Preferred as another kind, described Jie Qi mechanism be a spline-simulating connect paint block.
The present invention to decline this principle according to non newtonian pseudoplastic fluid viscosity under shear stress, shear thinning element is set up in paint liquid conveying flow passage, make paint liquid after the endoporus of shear thinning element stage casing capillary, in exit viscosity, mobility improves.In high polymer rheology, polymer melt and resin concentrated solution (such as painting class) are classified as the pseudoplastic fluid of non-Newtonian, flow behavior meets Power and leads law τ=k γ
nnon newtonian pseudoplastic fluid within the specific limits shear stress and shear rate is not proportional relationship, its flow index n is less than 1, more Specifically, paint class is a kind of guest's sweat pseudoplastic fluid, also claims ps eudo-plastic fluid with yield stress, namely fluid does not flow being less than under certain shear stress condition, and after flowing, its flow behavior shows as, τ=τ
y+ k γ
nin (τ, τ of above-mentioned formula
yγ is respectively shear stress, surrender shear stress, shear rate, and n is flow index), if ignore τ
yimpact, Simplified analysis, is generally called viscosity by the ratio of shear stress and shear rate, and viscosity is the physical quantity of reflection fluid viscosity, is also weigh the index of fluid flow characteristics.That is, improve shear stress and the shear rate of non newtonian pseudoplastic fluid within the specific limits, the viscosity of fluid can be made to reduce.Have experiment to show, same pseudoplastic fluid, in certain limit, shear rate is larger, and the non-Newtonianism of material is more remarkable.Polymer is of science is under shear stress to the explanation of this phenomenon, in solution, the polymer segment of curling winding becomes stretching, diastole, intermolecular force diminishes, high molecular segment is with flow direction orientation in other words, intermolecular disentanglement speed is greater than entanglement speed, cash as fluid viscosity diminishes, be also called shear thinning; Another feature of polymer melt and resin concentrated solution is the time-dependence of fluid flow performance simultaneously, specifically in conjunction with paint feeding apparatus, be exactly the firm fluid through shear flow course in brief, viscosity can decline, but not by shear action situation, the viscosity of fluid can extend in time again and progressively returns to original viscosity.
Shear thinning element stage casing of the present invention capillary inner hole section is very little, strong shearing is subject to after flowing through shear thinning element stage casing capillary endoporus at a high speed under the effect of insulating varnish liquid at plunger displacement pump, its viscosity declines, improve the levelability of paint liquid, the resin content painted in liquid does not reduce simultaneously, just can reduce paint liquid sagging phenomenon to occur, improve the quality of enamelled wire paint.
On the other hand, by its viscosity decline after the capillary endoporus of shear thinning element stage casing at a high speed of insulating varnish liquid, utilize this feature, appropriateness can improve the ratio painting resin in liquid, reduce the ratio of solvent.Especially for fine enameled wire bag lacquer craftwork, the ratio of resin improves, and just can improve the thickness of per pass japanning, maintain again good mobility simultaneously, the thickness of per pass japanning increases, and just can reduce total number of channels of coated insulation paint operation, effectively improves paint work efficiency.
In addition, the present invention adopts showering mode to paint than traditional roll coating model to enamelled wire, and its operating efficiency and painting quality also effectively improve.
Accompanying drawing explanation
Fig. 1 is principle of the invention figure;
Fig. 2 is the axial cutaway view Amplified image of shear thinning element of the present invention;
Fig. 3 is the first embodiment partial perspective view of the present invention;
Fig. 4 is the second embodiment partial perspective view of the present invention.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode, the present invention is described in further detail.
Embodiment one, shown in Fig. 1 to Fig. 3, a kind of paint feeding apparatus produced for fine enameled wire, comprise storage paint case 1, back paint case 2, plunger displacement pump 3, plunger displacement pump 3 enter to paint mouth by inhale paint pipe 4 connect storage paint case 1, back paint case 2 connects storage paint case 1 by paint backflow tube 5, and back paint case 2 is built with Jie Qi mechanism, and described Jie Qi mechanism is a roller 6, roller 6 vertically interval has some annular grooves 61, and every one annular groove 61 is corresponding with enamelled wire 7 position to be painted; The lacquer export of plunger displacement pump 3 connects a painting supervisor 8, and the paint end that goes out of painting supervisor 8 is arranged on above back paint case 2, and the end that goes out to paint of painting supervisor 8 is connected with many painting arms 81, and the bottom of every root painting arm 81 connects multiple shear thinning element 9;
Described shear thinning element 9 comprises stage casing capillary 91 and the bell-mouthed upper end 92 of band and is with bell-mouthed lower end 93, be connected to the two ends of stage casing capillary 91 with bell-mouthed upper end 92 and with bell-mouthed lower end 93 and be connected, the diameter of preferred described shear thinning element 9 stage casing capillary 91 endoporus is 0.4 ~ 1.5mm, the length of stage casing capillary 91 endoporus is 30 ~ 100mm, the present embodiment stage casing capillary 91 diameter of bore gets 0.4mm, and the length of stage casing capillary 91 endoporus gets 30mm;
The bell-mouthed upper end 92 of described band is connected with the bottom of painting arm 81, and the horn mouth of described lower end 93 is lacquer export, the corresponding above lacquer export described in two of the enamelled wire 7 that every root is to be painted;
The upper end 92 of described shear thinning element 9 is provided with flange 94 and utilizes flange 94 to be connected with the bottom of painting arm 81;
Antispray screen cloth 95 is connected with below the lower end 93 of described shear thinning element 9; Antispray screen cloth 95 by a gasket seal 96 be connected below the lower end 93 of shear thinning element 9 and use a screen cloth compacting ring 97 to be pressed in below shear thinning element 9 lower end 93.
Painting supervisor 8 is provided with two cover filters 10, two cover filters 10 employings to be installed in parallel.
The plunger displacement pump 3 of the present embodiment also can replace with gear pump, because plunger displacement pump can produce more high pressure, and the stroke of piston can conveniently adjust, the stroke changing motor speed and piston can adjust the flow of painting accurately, thus make paint liquid be subject to suitable shearing force after shear thinning element, therefore preferred plunger pump.
During the present embodiment work, make the rotation direction of roller 6 consistent with enamelled wire 7 direction of motion to be painted, controlling the flow velocity of insulating varnish liquid in capillary 91 endoporus of shear thinning element 9 stage casing by plunger displacement pump 3 is 2 ~ 6m/s, concrete workflow is, plunger displacement pump 3 sucks insulating varnish liquid from storage paint case 1 and sends into painting supervisor 8, insulating varnish liquid is diverted to painting arm 81 from painting supervisor 8, then flow through shear thinning element 9 stage casing capillary 91 endoporus to decline by viscosity after shear action, finally export spray on enamelled wire 7 to be painted from the lacquer export of shear thinning element 9, roller 6 annular groove 61 is accepted and is fallen paint liquid and be full of paint liquid, enamelled wire 7 to be painted just can dip in full paint liquid fullly, paint liquid inflow back paint case 2 remaining in groove 61 is sent by paint backflow tube 5 and can store up paint case 1, circulation like this.
Shown in embodiment two, Fig. 4, itself and embodiment one unlike the Jie Qi mechanism of installing in back paint case 2 be a spline-simulating connect paint block 11, each teeth groove 111 connecing paint block 11 is corresponding with enamelled wire 7 position to be painted.In the present embodiment, the diameter of shear thinning element 9 stage casing capillary 91 endoporus is got hole length in 1.5mm, stage casing capillary 91 and is got 100mm, and controlling the flow velocity of insulating varnish liquid in capillary 91 endoporus of shear thinning element 9 stage casing by plunger displacement pump 3 is 2m/s.
Below be only the present invention's two preferred embodiments, those skilled in the art makes by claim the protection range that equivalent change all falls into this case.
Claims (9)
1. the paint feeding apparatus produced for fine enameled wire, comprise storage paint case, back paint case, plunger displacement pump, plunger displacement pump enter to paint mouth by inhale paint pipe connect storage paint case, back paint case connects storage paint case by paint backflow tube, it is characterized in that: back paint case is built with the Jie Qi mechanism of band some roads parallel groove, and every one groove of Jie Qi mechanism is corresponding with an enamelled wire position to be painted; The lacquer export of plunger displacement pump connects a painting supervisor, and the paint end that goes out of painting supervisor is arranged on above back paint case, and the end that goes out to paint of painting supervisor is connected with many painting arms, and the bottom of every root painting arm at least connects a shear thinning element; Described shear thinning element comprises stage casing capillary and the bell-mouthed upper end of band and is with bell-mouthed lower end, with bell-mouthed upper end and be connected to the two ends of stage casing capillary with bell-mouthed lower end and be connected, the diameter of described stage casing capillary endoporus is 0.4 ~ 1.5mm, the length of described stage casing capillary endoporus is 30 ~ 100mm, the bell-mouthed upper end of described band is connected with the bottom of painting arm, the horn mouth of described lower end is lacquer export, at least corresponding above lacquer export described in of the enamelled wire that every root is to be painted; Painting supervisor is provided with filter.
2. a kind of paint feeding apparatus produced for fine enameled wire according to claim 1, is characterized in that: the flow velocity of described shear thinning element stage casing capillary endoporus paint liquid is 2 ~ 6m/s.
3. a kind of paint feeding apparatus produced for fine enameled wire according to claim 1, is characterized in that: described painting supervisor is provided with two cover filters, and two cover filters adopt and are installed in parallel.
4. a kind of paint feeding apparatus produced for fine enameled wire according to claim 1, is characterized in that: the upper end of described shear thinning element is provided with the flange be connected with painting arm bottom.
5. a kind of paint feeding apparatus produced for fine enameled wire according to claim 1, is characterized in that: be connected with antispray screen cloth below the lower end of described shear thinning element.
6. a kind of paint feeding apparatus produced for fine enameled wire according to claim 5, is characterized in that: described antispray screen cloth to be connected with the lower end of shear thinning element by a gasket seal and to use a screen cloth compacting ring to be pressed in below shear thinning element lower end.
7. a kind of paint feeding apparatus produced for fine enameled wire according to any one of claim 1 to 6, it is characterized in that: described Jie Qi mechanism is roller, roller vertically interval has some annular grooves.
8. a kind of paint feeding apparatus produced for fine enameled wire according to claim 7, is characterized in that: the rotation direction of described roller is consistent with the enamelled wire direction of motion to be painted.
9. according to any one of claim 1 to 6 a kind of for fine enameled wire produce paint feeding apparatus, it is characterized in that: described Jie Qi mechanism be a spline-simulating connect paint block.
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| CN201310316830.0A CN103354140B (en) | 2013-07-26 | 2013-07-26 | A kind of paint feeding apparatus produced for fine enameled wire |
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| CN103354140B true CN103354140B (en) | 2016-01-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104240848A (en) * | 2014-09-12 | 2014-12-24 | 靖江市华氏电机电磁线厂 | Efficient lubricant coating device of enamelling machine |
| CN105206349A (en) * | 2015-09-06 | 2015-12-30 | 露笑科技股份有限公司 | Varnished wire solvent-free lubricant coating device and coating process thereof |
| CN112164529B (en) * | 2019-06-06 | 2021-12-10 | 铜陵精迅特种漆包线有限责任公司 | Modified enameled wire production coating device |
| CN113130145B (en) * | 2021-04-07 | 2022-05-31 | 铜陵精迅特种漆包线有限责任公司 | Double-spraying paint system for enameling machine |
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| WO2009011182A1 (en) * | 2007-07-17 | 2009-01-22 | Yazaki Corporation | Electrical wire coating apparatus and method thereof |
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| CN102982914A (en) * | 2012-11-20 | 2013-03-20 | 无锡西玛梅达电工有限公司 | Painting device for multi-coating enameled wires |
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| WO2009011182A1 (en) * | 2007-07-17 | 2009-01-22 | Yazaki Corporation | Electrical wire coating apparatus and method thereof |
| JP2010192920A (en) * | 2010-04-12 | 2010-09-02 | Tokyo Electron Ltd | Coating processor |
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