CN100579664C - Soldering joint powder spraying technique and equipment thereof - Google Patents

Soldering joint powder spraying technique and equipment thereof Download PDF

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Publication number
CN100579664C
CN100579664C CN200710031917A CN200710031917A CN100579664C CN 100579664 C CN100579664 C CN 100579664C CN 200710031917 A CN200710031917 A CN 200710031917A CN 200710031917 A CN200710031917 A CN 200710031917A CN 100579664 C CN100579664 C CN 100579664C
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China
Prior art keywords
powder
dusts
arm
bucket
coating
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Expired - Fee Related
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CN200710031917A
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CN101176868A (en
Inventor
李蓝翎
卢石城
高泽宜
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黄锐龙
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Priority to CN200710031917A priority Critical patent/CN100579664C/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention relates to a powder spray-fused coating craft and a powder spray-coating equipment for weld joints, aiming to solve the problems that the common powder spray-coating craft and the powder spray-coating equipment for weld joints in prior art can not locally spray a weld joint on inner wall of a tank body; the powder recovery system is imperfect; the reutilization ratio of powder is low; the wasting amount is large; the dust pollution is serious and the equipment is easy to block and other problems. The invention adopts the technical proposal in comprising a main powder bucket, a powder spray-coating gun, a powder spray-coating arm, a recovery and filter powder bucket, an outer recoverer, a vacuum pump, a high voltage electrostatic generator and an electric controller. The invention is characterized in that: a powder spray-coating port is arranged on the powder spray-coating equipment for weld joints corresponding with the spray-coating width of the weld joint; the tank body is sleeved on the powder spray-coating arm for continuous operation, and the weld joint to be sprayed faces the powder spray-coating port; an electric field is formed between the powder and the tank body by the high voltage electrostatic generator; the powder spray-coating gun sprays powder continuously through the powder spray-coating port after obtaining powder from the main powder bucket; the whole weld joint on the inner wall absorbs a layer of powder when the tank body leaves the powder spray-coating arm, and the powder, which is not absorbed by the tank body or escapes, is sucked into the recovery and filter powder bucket.

Description

A kind of soldering joint powder spraying technique and equipment thereof
Technical field
The present invention relates to the plastic powders soverlay technique, specifically is with the powder coating process and the equipment thereof of weld seam protection layer to be formed on a kind of weld seam that thermoplastic or heat curing-type powder is covered metal can body inwall with spraying and the method for Electrostatic Absorption.
Background technology
The packing metal can of being produced by metal sheet is a class of the article packaging container that generally uses at present, and the can body of this metal can adopts the alternating-current resistance seam welder to weld it after by the metal sheet bending to connect seam and moulding usually.Because the general former existing etch-proof protective layer in the metal sheet surface of system jar; the internal face of can body can reach etch-proof general requirement; itself does not then have etch-proof protective layer weld seam behind the can body welding fabrication; so weld seam often will become the weak spot that is subject to the packed article corrosion; weld seam is corroded; not only can make the packing container poor durability, and the material that corrosion generates can pollute packed article, cause the packed article qualitative change.And in the safeguard measure to the employing of can body weld seam, the coating plastic protective layer can be applicable to the corrosion property of various packed articles, beyond doubt comparatively desirable safeguard measure.The solution of this problem is to adopt electrostatic power spraying apparatus to treat to form a plastic protective layer through later process at whole can body inner-wall spraying plastic powders again, as adopting " technique for coating inside wall of metal pipe with plastic powder " of Chinese patent ZL92112180.6 number.But, owing to the very little anticorrosion problem of weld seam of area whole can body inwall is sprayed, be undoubtedly a kind of serious waste, can increase a system jar cost greatly, and its operating efficiency is not high, be not suitable for low cost, the use of high efficiency system jar industry.The general powder spray coating device of present widespread usage can not carry out locally sprayed to can body inwall weld seam, and has powder recovery system imperfection, and powder utilization rate again is low, and the powder wastage is big, and the dirt powder of operating environment is seriously polluted, easily causes equipment to stop up.
Summary of the invention
For the weld seam that solves existing metal can body does not have the anti-corrosion protection layer, tends to become the weak spot that is subject to the packed article corrosion; can not carry out locally sprayed to can body inwall weld seam with existing general powder coating process and equipment thereof; and utilization rate is low again, the powder wastage is big powder recovery system imperfection, powder; the dirt powder of operating environment is seriously polluted, easily cause problems such as equipment obstruction; the purpose of this invention is to provide a kind of improved soldering joint powder spraying technique and equipment thereof, can solve prior art problems.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of soldering joint powder spraying technique, it is characterized in that: have main powder bucket at one, podwer gun, arm dusts, reclaim and filter the powder bucket, outer recover, vavuum pump, on the powder spraying device of HV generator and appliance controller, mouthful width that dusts of arm of dusting is set to corresponding with the setting coating width of can body weld seam, can body after the welding is enclosed within do operation continuously on the arm that dusts, and the position of can body weld seam is aligned mutually with the mouth that dusts of the arm that dusts, by HV generator in the arm that dusts powder and the can body outside the arm that dusts between produce the high-pressure electrostatic electric field, obtain powder by podwer gun from main powder bucket, and mouthful powder is sprayed continuously by dusting of the arm that dusts, at this moment Pen Chu powder is adsorbed to the can body commissure of continuous operation through the mouth that dusts from the mouth that dusts, can body moves the whole welding line place of leaving its inwall when dusting arm and has just adsorbed one deck powder, the width of powder layer is exactly the setting coating width of can body weld seam, the effect of the powder that is not adsorbed on the can body and drops to recycling cavity in the arm that dusts by vavuum pump is sucked into to reclaim filters in the powder bucket, from a small amount of powder that cooperates the slit effusion that dusts mouthful with can body, effect by vavuum pump is reclaimed in the filtration powder bucket from outer recover inspiration.
Technique scheme be enclosed within can body on the arm that dusts can be one then a ground move continuously, to improve operating efficiency.
The powder of technique scheme adopts thermoplastic or heat curing-type synthesizing polyester resin, and off-the-shelf is arranged on the market.Powder particles can be controlled in smaller or equal to 90 microns.
The powder layer controllable thickness that adheres to the can body commissure of technique scheme is built in 60~100 microns.
Mouthful width that dusts of the arm that dusts of technique scheme can be controlled in 8~14 millimeters.
The can body controllable diameter of technique scheme is built in 52~280 millimeters, and the can body height can be controlled in 50~300 millimeters.
A kind of soldering joint powder spraying equipment, it is characterized in that: comprise frame and rack-mounted main powder bucket, podwer gun, arm dusts, reclaim and filter the powder bucket, outer recover, vavuum pump, HV generator, appliance controller, wherein the powder inlet of podwer gun is connected with the meal outlet of main powder bucket, the powder inlet of arm of dusting is connected with the meal outlet of podwer gun by powder feeding pipe, the powder inlet that the interior recycling cavity of the arm that dusts filters the powder bucket by powder retrieving pipe and recovery is connected, outer recover is in mouthful outside of dusting of the arm that dusts, the meal outlet of outer recover is connected with the powder inlet that reclaims filtration powder bucket by powder retrieving pipe, vavuum pump is connected with the filter that reclaims filtration powder bucket by tracheae, reclaiming the feeding engine that filters powder bucket meal outlet is connected by the powder inlet of powder feeding pipe with main powder bucket, HV generator in the arm that dusts powder and the can body outside the arm that dusts between produce the high-pressure electrostatic electric field, appliance controller is made power supply and control connection with the electrical appliance on the device, and mouthful width that dusts of the arm that dusts is corresponding with the setting coating width of can body weld seam.
The preferred mode of the HV generator of technique scheme is mounted in the arm that dusts, to improve the applicability of its work.
Technique scheme also can be provided with the outer powder bucket of mending, and consumes in order to the powder amount of replenishing main powder bucket, and the feeding engine of mending powder bucket meal outlet outward is connected by the powder inlet of powder feeding pipe with main powder bucket.
The filter that the powder bucket is filtered in the recovery of technique scheme also can be provided with the batch (-type) vibrational structure, so that in time clear up the powder that adsorbs on the filter screen.
Beneficial effect of the present invention: owing to adopt one can supply the sheathed arm that dusts thereon of can body as dusting terminal, and can body is to be set in to do operation continuously on the arm that dusts, the dusting of arm of dusting mouthful is to align mutually with the can body weld seam, mouthful width that dusts is corresponding with the weld seam coating width, so can under the high-pressure electrostatic effect, realize the local spraying continuously of can body inwall weld seam, and accuracy height that dusts; Because the amount of powder that escapes is quite few, simultaneously because mouthful outside of dusting of the arm that dusts is provided with outer recover, can filter the powder bucket with in time being recovered to reclaim with the powder that cooperates the slit to overflow of can body from the mouth that dusts, so powder utilization rate height, powder is again wasted seldom, the dirt powder of operating environment pollutes greatly and reduces; Be provided with recycling cavity in the arm is communicated with recovery filtration powder bucket owing to dust, the accumulated powder cleaning in time that can will not be adsorbed on the can body and drop to recycling cavity in the arm that dusts is walked and is recovered to reclaim and filters the powder bucket, arm stops up so effectively prevented to dust, and powder utilization rate height again; Owing to have above-mentioned efficient perfect powder recovery system and good design feature, the present invention can adapt to the application need of the high standard high request of system jar industry.
The invention will be further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the vertical profile schematic diagram (its mid frame and electrical connecting wire do not draw) of one embodiment of the invention.
Fig. 2 dusts the A of arm to amplifying schematic views among Fig. 1.
Fig. 3 is the amplification schematic views with the can body weld seam of Fig. 1 coupling.
Among the figure: 1, main powder bucket; 2, podwer gun; 3, the arm that dusts; 4, reclaim filtration powder bucket; 5, outer recover; 6, vavuum pump; 7, HV generator; 8, appliance controller; 9, powder feeding pipe; 10, recycling cavity; 11, powder retrieving pipe; 12, the mouth that dusts; 13, powder retrieving pipe; 14, tracheae; 15, filter; 16, feeding engine; 17, powder feeding pipe; 18, can body; 19, weld seam; 20, coating width; 21, mend the powder bucket outward; 22, feeding engine; 23, powder feeding pipe.
The specific embodiment
With reference to Fig. 1~Fig. 2, this soldering joint powder spraying equipment, it is characterized in that: comprise frame and rack-mounted main powder bucket 1, podwer gun 2, arm 3 dusts, reclaim and filter powder bucket 4, outer recover 5, vavuum pump 6, HV generator 7, appliance controller 8, wherein the powder inlet of podwer gun 2 is connected with the meal outlet of main powder bucket 1, the powder inlet of arm 3 of dusting is connected with the meal outlet of podwer gun 2 by powder feeding pipe 9, the powder inlet that the arm 3 interior recycling cavities 10 that dust filter powder bucket 4 by powder retrieving pipe 11 and recovery is connected, outer recover 5 is in mouthful 12 outsides of dusting of the arm 3 that dusts, the meal outlet of outer recover 5 is connected with the powder inlet that reclaims filtration powder bucket 4 by powder retrieving pipe 13, vavuum pump 6 is connected with the filter 15 that reclaims filtration powder bucket 4 by tracheae 14, reclaiming the feeding engine 16 that filters powder bucket 4 meal outlets is connected with the powder inlet of main powder bucket 1 by powder feeding pipe 17, HV generator 7 in the arm 3 that dusts powder and the can body outside the arm 3 that dusts between produce the high-pressure electrostatic electric field, appliance controller 8 is made power supply and control connection with the electrical appliance on the equipment, and the width of the mouth 12 that dusts of the arm 3 that dusts is corresponding with the setting coating width 20 of can body weld seam 18.In addition, HV generator 7 is arranged in the arm 3 that dusts; This soldering joint powder spraying equipment also is provided with the outer powder bucket 21 of mending, and consumes in order to the powder amount of replenishing main powder bucket 1, and the feeding engine 22 of mending powder bucket 21 meal outlets outward is connected with the powder inlet of main powder bucket 1 by powder feeding pipe 23.
This soldering joint powder spraying technique, on the soldering joint powder spraying equipment of Fig. 1~shown in Figure 2, when appliance controller 8 after the electrical appliance on equipment power supply and carrying out electrical control, vavuum pump 6 work are also filtered formation negative pressure in the powder bucket 4 by tracheae 14, filter 15 reclaiming.Mouthfuls 12 the width of dusting of arm 3 of dusting is set to corresponding with the setting coating width 20 of can body weld seam 18; The mouth 12 that dusts that can body 18 grades after will welding by the can body conveying mechanism pack into the position of doing operation continuously on the arm 3 that dusts and making can body weld seam 19 and the arm 3 that dusts one by one aligns mutually; By HV generator 7 in the arm 3 that dusts powder and the can body 18 outside the arm 3 that dusts between produce the high-pressure electrostatic electric field; Obtain a powder and mouthfuls 12 ejection powders continuously that dust by the arm 3 that dusts by podwer gun 2 from main powder bucket 1; At this moment Pen Chu powder is adsorbed to the can body weld seam 19 of continuous operation through the mouth 12 that dusts from the mouth 12 that dusts; The width that one deck powder, powder layer have just been adsorbed in whole welding line 19 places that its inwall when dusting arm 3 is left in can body 18 operation is exactly the setting coating width of can body weld seam 19; Be not adsorbed on the can body 18 and drop to of the effect of the powder of recycling cavities 10 in the arm 3 that dusts, be sucked into to reclaim through powder retrieving pipe 11 and filter in the powder bucket 4 by vavuum pump 6; From dust mouthfuls 12 with a small amount of powder that cooperates the slit to overflow of can body, be sucked into by outer recover 5, powder retrieving pipe 13 and reclaim in the filtration powder bucket 4.In addition, powder adopts thermoplastic or heat curing-type synthesizing polyester resin, and powder particles is controlled at smaller or equal to 90 microns; The powder layer THICKNESS CONTROL that is adsorbed onto the can body commissure is at 60~100 microns; Mouthful width that dusts of arm of dusting is controlled at 8~14 millimeters; The can body diameter is at 52~280 millimeters, and the can body height is at 50~300 millimeters.
After soldering joint powder spraying equipment was left in the can body operation after the powder spraying, the heating process that just can enter the road, back made powder layer fusing, levelling, the curing of absorption on the can body weld seam 19, becomes the plastic protective layer that covers on the can body weld seam 19.
The powder productive set arrives to a certain degree in powder bucket 4 is filtered in above-mentioned recovery, and reclaiming the feeding engine 16 that filters powder bucket 4 will be transported to powder in the main powder bucket 1 by powder feeding pipe 17; Powder amount consumption in main powder bucket 1 acquires a certain degree, and the feeding engine 22 of mending powder bucket 21 outward will replenish powder to main powder bucket 1 by powder feeding pipe 23.

Claims (8)

1, a kind of soldering joint powder spraying technique, it is characterized in that: have main powder bucket at one, podwer gun, arm dusts, reclaim and filter the powder bucket, outer recover, vavuum pump, on the powder spraying device of HV generator and appliance controller, mouthful width that dusts of arm of dusting is set to corresponding with the setting coating width of can body weld seam, can body after the welding is enclosed within do operation continuously on the arm that dusts, and the position of can body weld seam is aligned mutually with the mouth that dusts of the arm that dusts, by HV generator in the arm that dusts powder and the can body outside the arm that dusts between produce the high-pressure electrostatic electric field, obtain powder by podwer gun from main powder bucket, and mouthful powder is sprayed continuously by dusting of the arm that dusts, at this moment Pen Chu powder is adsorbed to the can body commissure of continuous operation through the mouth that dusts from the mouth that dusts, can body moves the whole welding line place of leaving its inwall when dusting arm and has just adsorbed one deck powder, the width of powder layer is exactly the setting coating width of can body weld seam, the effect of the powder that is not adsorbed on the can body and drops to recycling cavity in the arm that dusts by vavuum pump is sucked into to reclaim filters in the powder bucket, from a small amount of powder that cooperates the slit effusion that dusts mouthful with can body, effect by vavuum pump is reclaimed in the filtration powder bucket from outer recover inspiration.
2, by the described soldering joint powder spraying technique of claim 1, it is characterized in that the described can body that is enclosed within on the arm that dusts be one then a ground move continuously.
3, by claim 1 or 2 described soldering joint powder spraying techniques, it is characterized in that described powder adopts thermoplastic or heat curing-type synthesizing polyester resin, powder particles is controlled at smaller or equal to 90 microns.
4, by claim 1 or 2 described soldering joint powder spraying techniques, it is characterized in that the described powder layer THICKNESS CONTROL of can body commissure that is adsorbed on is at 60~100 microns.
5, by claim 1 or 2 described soldering joint powder spraying techniques, it is characterized in that mouthful width that dusts of the described arm that dusts is controlled at 8~14 millimeters.
6, a kind of soldering joint powder spraying device, it is characterized in that: comprise frame and rack-mounted main powder bucket, podwer gun, arm dusts, reclaim and filter the powder bucket, outer recover, vavuum pump, HV generator, appliance controller, wherein the powder inlet of podwer gun is connected with the meal outlet of main powder bucket, the powder inlet of arm of dusting is connected with the meal outlet of podwer gun by powder feeding pipe, the powder inlet that the interior recycling cavity of the arm that dusts filters the powder bucket by powder retrieving pipe and recovery is connected, outer recover is in mouthful outside of dusting of the arm that dusts, the meal outlet of outer recover is connected with the powder inlet that reclaims filtration powder bucket by powder retrieving pipe, vavuum pump is connected with the filter that reclaims filtration powder bucket by tracheae, reclaiming the feeding engine that filters powder bucket meal outlet is connected by the powder inlet of powder feeding pipe with main powder bucket, HV generator in the arm that dusts powder and the can body outside the arm that dusts between produce the high-pressure electrostatic electric field, appliance controller is made power supply and control connection with the electrical appliance on the device, and mouthful width that dusts of the arm that dusts is corresponding with the setting coating width of can body weld seam.
7, by the described soldering joint powder spraying device of claim 6, it is characterized in that described HV generator is arranged in the arm that dusts.
8, by claim 6 or 7 described soldering joint powder spraying devices, it is characterized in that described device also is provided with the outer powder bucket of mending, the feeding engine of mending powder bucket meal outlet outward is connected by the powder inlet of powder feeding pipe with main powder bucket.
CN200710031917A 2007-12-01 2007-12-01 Soldering joint powder spraying technique and equipment thereof Expired - Fee Related CN100579664C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200710031917A CN100579664C (en) 2007-12-01 2007-12-01 Soldering joint powder spraying technique and equipment thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200710031917A CN100579664C (en) 2007-12-01 2007-12-01 Soldering joint powder spraying technique and equipment thereof

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Publication Number Publication Date
CN101176868A CN101176868A (en) 2008-05-14
CN100579664C true CN100579664C (en) 2010-01-13

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
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CN102078847B (en) * 2009-11-30 2014-07-23 鸿富锦精密工业(深圳)有限公司 Liquid recovery device
CN102626685A (en) * 2012-04-28 2012-08-08 广州卓迅包装机械有限公司 Pressurized-jet powder supply system
EP3014632B1 (en) * 2013-06-27 2017-05-24 Prysmian S.p.A. Method of manufacturing power cables and related power cable
CN106746745A (en) * 2016-12-14 2017-05-31 郴州市晶讯光电有限公司 A kind of dry duster and its application method
CN106733376A (en) * 2016-12-31 2017-05-31 德清华梦木制品有限公司 A kind of powder is reclaimed and supplement powder-supply system automatically
CN106925456A (en) * 2017-04-06 2017-07-07 天长市金陵电子有限责任公司 A kind of electrostatic powder coating machine
CN110465419B (en) * 2018-05-11 2020-12-08 广州卓迅包装机械有限公司 Powder nozzle device and powder spraying system
CN110116072B (en) * 2019-04-17 2020-09-29 佛山市南海区江鑫机械设备厂 Powder spraying device and control method

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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EE01 Entry into force of recordation of patent licensing contract

Assignee: Guangzhou Hanjiang Light Industry Machine Co.,Ltd.

Assignor: Huang Ruilong

Contract record no.: 2011440000747

Denomination of invention: Soldering joint powder spraying technique and equipment thereof

Granted publication date: 20100113

License type: Exclusive License

Open date: 20080514

Record date: 20110722

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100113

Termination date: 20181201