A kind of Zinc alloy slide fastener electroplating device that can improve coating uniformity
This case is Application No. " 2014101492272 ", a kind of entitled " Zinc alloy slide fastener electroplating device " Chinese invention
The divisional application of patent application, the applying date of female case is 2014.4.12.
Technical field
The invention belongs to drag chain electric-plating equipment field, and in particular to a kind of Zinc alloy slide fastener electroplating that can improve coating uniformity
Device.
Background technology
A kind of common Zinc alloy slide fastener, such as China Patent No.:A kind of ZL 200820145408.8 disclosed " zinc conjunction
The improved structure of golden die casting slide fastener ", it includes chain tooth, pull head, two chain belts, and the relative side of two panels chain belt is embedded with a row chain respectively
Tooth, the engagement of two row chain tooth mutual dislocations, pull head is stuck in chain belt with respect in the chain tooth of side plate, wherein having chain tooth on each chain band
Relative side is provided with conductive filament, and the conductive filament is once through the row chain tooth in base band.Conductive filament is two, is knitted to chain belt
On.Due to being provided with conductive filament on Zinc alloy slide fastener, the conduction of whole piece slide fastener can be realized, it is thus possible to which whole piece slide fastener is carried out
Electroplating processes.Compared to the slide fastener of conventionally employed oxidation processes, using the slide fastener of electroplating processes, its chain tooth surface is more smooth, plating
Layer is thicker, has preferably protective effect to Zinc alloy slide fastener matrix, can improve the service life of slide fastener.
Zinc alloy slide fastener electroplating equipment has been occurred on the market at present.Such as China Patent No.:ZL200710067114 is public
Open a kind of " Zinc alloy slide fastener electroplating device ", including the framework being equipped with above cell body machine, the rotation plate rail left and right sides are logical
Cross oil cylinder to be connected with framework, rotate and one group of roller, the connection of roller shaft upper end are set by the shaft staggered platoon of roller on plate rail
Negative electrode copper bar is set, and surrounding is equipped with anode conducting circle in cell body, and frame right connection sets motor, driving wheel, driven pulley
The slide fastener transmission mechanism connected and composed.
But this Zinc alloy slide fastener electroplating device is used to there are problems that two in plating:1st, due to Zinc alloy slide fastener
Shuttle in each negative electrode copper bar, in plating, chain tooth can give birth to excessive friction with tough cathode scheduling, cause the chain tooth of slide fastener thick
Rough or even scratch chain tooth, in order to overcome slide fastener plating when coating it is not uniform enough the defects of, zipper industry also have use will draw
Chain is cut into chunks shape and carries out rack plating on corresponding hanger is hung on, but uses rack plating mode production efficiency relatively low.2nd, due to
Zinc alloy slide fastener is arranged around tough cathode is located at, during slide fastener is walked, when the chain tooth of slide fastener is in diverse location, and chain tooth
It is different with the distance of galvanic anode, namely when chain tooth is in diverse location, the current density in chain tooth is inconsistent, the deposition of coating
Speed is inconsistent, and it is coarse to easily cause coating when current density is too small, and current density is too big, and easily causing coating burns, so
One, using this drag chain electric-plating equipment, high is required to the plating solution in coating bath, plating solution needs large range of current density
When scope is to ensure that slide fastener is in diverse location, the current density in chain tooth just will not in the current density range of plating solution
Occur coarse or the abnormal conditions such as burn.
The applicant is constantly studied problem above, forms following proposal.
The content of the invention
Chain odontotripsis in electroplating process can be reduced it is an object of the invention to one kind, can guarantee that the uniform one kind of coating can carry
The Zinc alloy slide fastener electroplating device of high coating uniformity.
In order to achieve the above object, technical scheme as present invention use:
A kind of Zinc alloy slide fastener electroplating device that can improve coating uniformity, including coating bath, anode assembly, connect with slide fastener electricity
Tactile cathode assembly and the zip fastener driving device moved with drive slide fastener along coating bath length direction, it is characterised in that:The sun
Pole device includes the positive plate electrically connected with external circuit positive pole and to place the anode seat of positive plate, and cathode assembly includes lower rolling
Axle and the upper roller bearing electrically connected with external circuitry negative pole, slide fastener pass through between upper roller bearing and lower roller bearing, and positive plate is along length side
The passage passed through to formation for slide fastener, coating bath include reservoir and the electroplating bath being arranged on above reservoir, the interior setting of electroplating bath
There are two pieces of dividing plates vertical with the slide fastener direction of travel, the dividing plate sets up separately on the both sides of the positive plate, the dividing plate
The opening passed through for the slide fastener is offered, opening is provided with the groove seat matched with the upper roller bearing and the lower roller bearing, institute
State groove seat to extend to the upper surface of the dividing plate from the bottom of the opening and form export department, the upper roller bearing and the lower rolling
Axle is erected in the groove seat, in addition to is erected at the fixed plate of the export department, and the fixed plate is fixed on the dividing plate
Upper surface, the fixed plate corresponds to the export department and offers screw, and adjustment bolt, the adjustment bolt are equipped with screw
Lower surface and the upper roller bearing the tangent setting of peak.
As the preferred embodiment of the present invention, the cathode assembly includes lower roller bearing and electrically connected with external circuitry negative pole upper
Roller bearing, slide fastener are passed through between upper roller bearing and lower roller bearing, and the upper roller bearing and the lower roller bearing are arranged at outside the passage, institute
It is rectangular-shape inert anode plate to state positive plate, is laid with pod apertures on the positive plate, and the pod apertures are from the positive plate
Upper surface pass through, by the passage and extend to the lower surface of the positive plate.
As the preferred embodiment of the present invention, the two sides of the positive plate are respectively arranged with two support bars to stretch out,
The anode seat is provided with the support slot coordinated with the support bar, and spiral shell is offered on the support bar and the support slot
Hole, the support bar are bolted on the support slot by first.
As the preferred embodiment of the present invention, the lower end of the adjustment bolt is arranged to hemispherical.
After technical scheme, slide fastener is passed through in the passage out of positive plate, configured in coating bath corresponding
Electroplate liquid, connect electroplating power supply, while start zip fastener driving device drive slide fastener walked in coating bath, when slide fastener passes through anode
During passage in plate, the chain tooth on slide fastener is electroplated, in electroplating process, the slide fastener coupling element in passage will not be with other dresses
Put generation friction and cause chain odontotripsis.Slide fastener outside passage does not reach deposition potential because current density is minimum, because
This substantially will not deposited plating layer.And central axis of the slide fastener along passage by, plating when, each chain tooth in passage
On current density it is basically identical, coating is uniform when can guarantee that plating.Adjustment bolt can limit the upward play of roller bearing, ensure to draw
During the walking of chain, chain tooth can be contacted smoothly with upper roller bearing and lower roller bearing, be ensured good between slide fastener and cathode assembly
Electrical contact, the coating being deposited on slide fastener coupling element is more uniform.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention (zip fastener driving device is not shown in figure);
Fig. 2 is the structural representation of electroplating bath of the present invention;
Fig. 3 is the enlarged drawing at A in Fig. 2;
Fig. 4 is the enlarged drawing at B in Fig. 2;
Fig. 5 is Anodic plate structure schematic diagram of the present invention;
Fig. 6 is another structural representation of positive plate of the present invention;
Fig. 7 is lower anode plate structure schematic diagram in Fig. 6;
Fig. 8 is upper anode plate structural representation in Fig. 6.
In figure:
11- reservoir 12- electroplating baths
21- positive plate 211- upper anode plates
Positive plate 213- the first side walls under 212-
214- second sidewalls the first blind slots of 215-
216- the second blind slot 22- pod apertures
23- support slot 24- support bars
25- the first bolt 26- positive wires
Roller bearing under the upper roller bearing 32- of 31-
33- fixed plate 34- adjustment bolts
35- cathode wire 4- circulating pumps
5- return port 6- slide fasteners
7- dividing plates 71- is open
72- groove seat 8- conduits
Embodiment
In order to which technical scheme is explained further, it is described in detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to shown in Fig. 8, a kind of Zinc alloy slide fastener electroplating device that can improve coating uniformity, including coating bath, sun
Pole device, the cathode assembly made electrical contact with slide fastener and the zip fastener driving device moved with drive slide fastener 6 along coating bath length direction.
Coating bath has reservoir 11 and the electroplating bath 12 above reservoir 11 to form, and reservoir 11 is used to place electroplating solution and addition
Electroplating liquid medicine.The bottom of the electroplating bath 12 offers perforation (not shown), and the perforation is arranged on the positive plate
Lower section, conduit 8 is provided between the perforation and the delivery outlet of the circulating pump, the bottom of the electroplating bath 12 is further opened with supplying
The plating solution is back to the return port 5 of the reservoir 11.Plating solution from reservoir 11 is delivered to electricity by setting circulating pump 4
Slide fastener electroplating is carried out in coating bath 12, while return port 5 is provided with electroplating bath 12, the plating solution in electroplating bath 12 passes through return port 5
Reservoir 11 is flowed back to, electroplate liquid is consequently formed and circulates on a large scale, ensures the circulation conveying of metal ion in plating solution, ensures coating
It is more uniform.
In such scheme, anode assembly includes the positive plate electrically connected with external circuit positive pole and to place positive plate
Anode seat 9.The length direction of positive plate described in the positive plate interior edge offers passage, work of the slide fastener 6 in slide fastener transmission mechanism
Passed through with lower along the central axis of passage, the chain tooth of the slide fastener 6 in the passage deposited metal coating in the presence of external power.
Zip fastener driving device disclosed in prior art, is mainly used in driving slide fastener to move along coating bath length direction, to realize slide fastener
Continuous electroplating, such as can use a kind of " Zinc alloy slide fastener electroplating device " disclosed in China Patent No. ZL200710067114
In zip fastener driving device, be no longer described in detail here.Positive plate selects inert anode plate, such as from stainless steel or graphite
Plate, shape use rectangular-shape, and passage is opened on the central axis of cuboid along its length, is laid with the positive plate
Pod apertures 22, the pod apertures 22 pass through from the upper surface of the positive plate, by the passage and extend to the positive plate
Lower surface.So, plating solution is delivered to electroplating bath 12 by circulating pump from reservoir 11, and plating solution is from the perforation of the bottom of electroplating bath 12
Continue up after passing through, passed through from the pod apertures 22 of the lower surface of positive plate, worn by the gap between the chain tooth of slide fastener 6
Cross, and passed through from the pod apertures 22 of positive plate upper surface, promote the shuttling movement of plating solution, and the chain tooth fully with slide fastener 6 connects
Touch.Because the chain tooth of slide fastener 6 is in intermeshing state in electroplating process, using traditional plating mode, engaged in chain tooth
Position is because of electroplate liquid poor fluidity, and metal deposit efficiency is low, and coating is thin or even does not plate coating, the slide fastener electroplated, is using
After a period of time, during being opened and closed in slide fastener, chain tooth phase mutual friction, coating is caused to be easiest to wear, coating is worn
Expose matrix after falling, have a strong impact on the attractive in appearance and corrosion resistance of slide fastener.And by setting up pod apertures, coordinate circulating pump, Neng Goushi
Existing plating solution circulates on a large scale, and the chain tooth engagement place of slide fastener is fully contacted with plating solution, ensures that the coating of chain tooth is overall more
Uniformly.
Reference picture 6 is to Fig. 8, as the another embodiment of positive plate, as the another embodiment of positive plate, institute
It is detachable including the upper anode plate 211 to cooperate and lower positive plate 212, upper anode plate 211 and lower positive plate 212 to state positive plate
Ground links together.In embodiment, upper anode plate 211 and lower positive plate 212 are bolted on together, upper anode plate
The passage passed through for the slide fastener is formed between 211 and lower positive plate 212.Conveniently periodically positive plate can be entered in this way
Row cleaning, ensure the good electric conductivity of positive plate, and then ensure that coating is uniform in plating.
It is preferred that the passage is in cuboid, the left and right sides of the passage is the first side wall 213 and second sidewall 214,
Also include the first blind slot 215 being opened on the first side wall 213 and the second blind slot 216 being opened in second sidewall 214, it is described
The opening of first blind slot 215 and the opening of second blind slot 216 may be contained within the upper surface of the upper anode plate 211 and from sun
The upper surface of pole plate extends to the lower surface of positive plate.First blind slot 215 and the second blind slot 216 are along the length direction of positive plate
Set.Open up the first blind slot 215 and the second blind slot 216 be mainly used to place soluble anode plate, by soluble anode plate and
The cooperation of insoluble anode plate, good electric conductivity is on the one hand can guarantee that, is on the other hand continuously replenished by soluble anode
Metal ion, ensure that concentration of metal ions is stable in electroplate liquid, coating is more uniform during plating.In this scenario, pod apertures 22
It can be laid on positive plate, more to facilitate electroplate liquid to be flowed in passage inner-outer circulation.
In such scheme, anode seat 9 is fixed in electroplating bath, is mainly used to place positive plate.The two sides of positive plate
Two support bars to stretch out 24 are respectively arranged with, support bar 24 can for example be arranged on the both ends of positive plate along its length,
By four support bars 24 to set up positive plate, support slot 23 is correspondingly provided with anode seat 9, support bar 24 is matchingly erected at branch
Support in groove 23.For further fixed anode plate, screw, the branch are offered on the support bar 24 and the support slot 23
Strut 24 is fixed on the support slot 23 by the first bolt 25.Support bar 24 selects stainless steel, and positive wire 26 is consolidated
It is scheduled on the first bolt 25 and with being connected to external circuit positive pole.
The cathode assembly includes lower roller bearing 32 and the upper roller bearing 31 that is electrically connected with external circuitry negative pole, and slide fastener is from upper roller bearing
Passed through between 31 and lower roller bearing 32, the upper roller bearing 31 and the lower roller bearing 32 use stainless steel roller bearing, are arranged at described
Outside passage.Upper roller bearing 31 and lower roller bearing 32 can for example be set in the following way:Two pieces and institute are provided with electroplating bath 12
The vertical dividing plate 7 of the direction of travel of slide fastener 6 is stated, dividing plate selects stainless steel plate, and width of the dividing plate 7 along electroplating bath 12 is set, point
The both sides of the positive plate are located at, the opening 71 passed through for the slide fastener 6, upper roller bearing 31 and lower roller bearing are offered on the dividing plate
32 are arranged at the opening 71, be specifically provided with opening 71 with it is described on roller bearing 31 and the lower roller bearing 32 match
Groove seat 72, groove seat 72 are two, are set up separately in the both sides of slide fastener 6.The groove seat 72 extends to described from the bottom of the opening 71
The upper surface of dividing plate 7 simultaneously forms export department, and the both ends of the upper roller bearing 31 and the both ends of the lower roller bearing 32 are each provided at the groove
In seat 72, upper roller bearing 31 and lower roller bearing 32 can be rolled with the motion of slide fastener 6.
In such scheme, in addition to the fixed plate 33 of the export department is erected at, fixed plate 33 uses stainless steel plate, institute
The upper surface that fixed plate 33 is screwed in the dividing plate 7 is stated, by setting dismountable fixed plate 33, to facilitate to right
Upper roller bearing 31 and lower roller bearing 32 are changed.The corresponding export department of the fixed plate 33 offers screw, is equipped with screw
Adjustment bolt 34, the lower surface of adjustment bolt 34 can be processed into hemisphere face and tangent with the peak of upper roller bearing 31.By setting
31 upward play of roller bearing can be limited by putting adjustment bolt 34, during the walking for ensureing slide fastener 6, chain tooth can smoothly with upper rolling
Axle 31 and lower roller bearing 32 contact, and ensure electrical contact good between slide fastener and cathode assembly, the coating being deposited on slide fastener coupling element
It is more uniform.
Above-mentioned embodiment is intended to that the present invention will be described in detail rather than is defined, any without departing substantially from the present invention
The reasonable conversion and modification of essence, all it is considered as in the protection category of the present invention.