CN104841298A - Method for mass grouting and trace grouting of fully automatic color mixer, and apparatus thereof - Google Patents

Method for mass grouting and trace grouting of fully automatic color mixer, and apparatus thereof Download PDF

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Publication number
CN104841298A
CN104841298A CN201410124805.7A CN201410124805A CN104841298A CN 104841298 A CN104841298 A CN 104841298A CN 201410124805 A CN201410124805 A CN 201410124805A CN 104841298 A CN104841298 A CN 104841298A
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Prior art keywords
mill base
communicated
slip casting
channel
pump
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Granted
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CN201410124805.7A
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CN104841298B (en
Inventor
余建华
庞君
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Zhengzhou Sanhua Technology and Industry Co Ltd
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Individual
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Priority to CN201410124805.7A priority Critical patent/CN104841298B/en
Priority to PCT/CN2015/070796 priority patent/WO2015120763A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Accessories For Mixers (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The invention provides a method for mass grouting and trace grouting of a fully automatic color mixer, and an apparatus thereof in order to solve the technical problems of failing of obtaining of half a drop of or a drop of a color paste and accurate obtaining of a trace amount of the color paste. The method for mass grouting and trace grouting of the fully automatic color mixer comprises the following steps: 1, connecting a channel A with a channel b, and outpouring a color paste through the channel A and the channel B; 2, resorbing an alpha volume of the color paste through a color paste color mixing pump or a resorption device after the color paste outpouring; and 3, carrying out controlled grouting of an alpha + beta volume of the color paste when a beta volume of the color paste is needed. Experiments prove that the alpha volume of the color paste is resorbed after grouting is stopped, and alpha + beta color paste grouting through using the color mixing pump, so the beta volume of the color paste can be accurately outpoured; and the increase of trace compensation makes trace supply accurate.

Description

A kind of full-automatic colour mixer is a large amount of slip casting but also the method for micro-slip casting and device not only
Technical field
The invention belongs to full-automatic colour mixer field, be specifically related to full-automatic colour mixer not only a large amount of slip casting but also the method for micro-slip casting.Espespecially use the full-automatic colour mixer of high efficiency color mixing pump not only a large amount of slip casting but also the method for micro-slip casting.
Background technology
Full-automatic colour mixer, is generally made up of host computer, display, toning software, colour mixer.Automatically compared to traditional manual toning, because the operating procedure of hand color mixer is generally first then open valve to certain altitude with having pulled the pump housing mill base is injected in basic paint can, full-automatic colour mixer then performs various action by the toning software control colour mixer be contained in advance in computer, to reach, mill base is injected into coating object accurately.Use the advantage of full-automatic colour mixer to be save time to save trouble, be not easy to make mistakes, and very high precision can be reached.Full-automatic colour mixer and full-automatic oscillator, the paint such as full-automatic spin favourable turn uniform mixing equipment together form main flow shop tinting system.Current high-end full-automatic colour mixer is produced primarily of developed country, but domestic brand relies on metastable quality and cheap price, obtain immense success at coating mixing machine and hand color mixer field, and research and develop high-end full-automatic computer colour mixer.The patent No. is 201210180754.0, and patent name is the application for a patent for invention of the mill base quantitative supply device of colour mixer, utilizes the principle of sloping tray axial plunger piston pump exactly, the high efficiency color paste toning pump of design.No matter the height of the color paste toning efficiency of pump, there is so a kind of demand in existing market, just be to provide micro-mill base, make client can modulate a small amount of coating and carry out experimental application, after determining to need application color, mill base is bought again by normal demand amount, this just requires to provide micro-mill base, certainly manually micro-mill base can be provided, but manually provide micro-mill base efficiency low, not only pollute working environment, and it is very loaded down with trivial details, existing full-automatic colour mixer, be difficult to the function realizing providing micro-mill base, difficult point is that existing full-automatic colour mixer slip casting is complete, due to the effect of mill base cohesive force, mill base is in exit bulging, the micro-mill base of bulging, may drip, also bulging state may be maintained, long-time maintenance bulging state.Greatest problem is due to the adsorptivity effect of mill base liquid on outlet (paint nozzle) edge, makes to be difficult to realize mill base when outpouring a small amount of mill base and lays required mill base amount exactly from outlet (paint nozzle).That is, a regulation trace mill base is got (as 0.077ml in color paste pump, 0.038ml, each uniformity can not be ensured time 0.019ml), sometimes even do not get off mill base, after causing having broken mill base caused by the toughness of these look oars and adsorptivity, the mill base amount of mill base exit retention is inconsistent at every turn causes, fact proved besides, at present this kind of colour mixers all in the world all adopt at present this broken a mill base after do not do the mill base process of how grout outlet mode micro-mill base amount can be caused (as 0.077ml, 0.038ml, 0.019ml) outpour that inaccurate (error reaches 10% ~ 50%, even larger), its Crack cause complicated mechanism, even some is failed to understand.
Summary of the invention
Half or a mill base can not be got in order to solve existing full-automatic colour mixer, or get the technical problem of micro-mill base more accurately, the invention provides a kind of full-automatic colour mixer not only a large amount of slip casting but also method of micro-slip casting, comprise the following steps:
(1) passage A is communicated with channel B, outpours mill base by passage A and channel B;
(2) after stopping slip casting, color paste toning pump or suck-back device resorption α volume mill base;
(3) need slip casting β volume mill base next time, control slip casting alpha+beta volume mill base.
In described step (2) α volume scope Wei α≤1 μ l.
Actual slip casting γ volume in described step (3), then γ=alpha+beta+Δ β=(m+n) θ+Δ β, α=m θ, β=n θ, m, n are integer, θ is the theoretical amount that color paste toning pump stepper motor step further sucked or outpoured mill base, and Δ β is that actual measurement outpours the amount of mill base and the error of required mill base amount β; The numerical value of trace slip casting β volume is the integral multiple of θ.
Described passage A is communicated with channel B, outpours mill base by passage A and channel B, merges into a passage outpour mill base for passage A and channel B.
Its other end of passage A that one end is communicated with color mixing pump and triple valve I inlet communication, triple valve I mono-outlet is communicated with channel B one end, and the channel B other end is communicated with mill base outlet; Another outlet of triple valve I is communicated with channel C one end, and the channel C other end is communicated with mill base bucket; Described passage A is communicated with channel B, outpours mill base by passage A and channel B, for triple valve I makes passage A be communicated with channel B, outpours mill base by passage A and channel B; α volume mill base is inhaled in described step (2) color paste toning blowback, and the suck-back device be communicated with for passage A top set substitutes color paste toning blowback suction α volume mill base.
The suck-back device that described passage A top set is communicated with is the plunger displacement pump that described passage A top set is communicated with.
A kind of not only a large amount of slip casting but also the full-automatic colour mixer of micro-slip casting, the color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, by oblique plate plunger pump resorption α volume mill base, the letting out mill base window and enter the import of mill base window respectively parallel communication two triple valves of oblique plate plunger pump valve plate, the outlet of one of them triple valve is communicated with grout outlet by pipeline A, and the outlet of another triple valve is communicated with mill base bucket by pipeline D.
The color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, and the mill base window of letting out of oblique plate plunger pump valve plate is communicated with grout outlet by pipeline A, and by resorption plunger displacement pump resorption α volume mill base, described pipeline A top set is communicated with resorption plunger displacement pump.
The color paste toning pump of full-automatic colour mixer let out mill base window is communicated with triple valve import by pipeline A, an outlet of this triple valve is communicated with grout outlet by pipeline B, and an outlet of this triple valve is communicated with mill base bucket by pipeline C; The mill base window that enters of color paste toning pump is communicated with mill base bucket by pipeline D, and by resorption plunger displacement pump resorption α volume mill base, described pipeline A top set is communicated with resorption plunger displacement pump.
No matter use the colour mixer of prior art or the colour mixer improved, according to the method described above or device, experiment proves in the present invention, after stopping slip casting, i.e. resorption α volume mill base, color mixing pump performs the actuating quantity outpouring alpha+beta mill base amount, more accurately can outpour β volume mill base; Increase trace to compensate, can more accurately trace supply.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of inclined shaft pump.
Fig. 2 is the layout of piston actuated axle on swash plate inclined-plane.
Fig. 3 is the first structural representation of full-automatic colour mixer.
Fig. 4 is the second structural representation of full-automatic colour mixer.
Fig. 5 is the third structural representation of full-automatic colour mixer.
Fig. 6 is the 4th kind of structural representation of full-automatic colour mixer.
Fig. 7 is the error of calculation of the six cylinder pump amounts of outpouring and the ethics linear equation amount of outpouring.
detailed description of the invention
Full-automatic colour mixer is a large amount of slip casting but also a method for micro-slip casting not only, comprises the following steps:
(1) passage A is communicated with channel B, outpours mill base by passage A and channel B;
(2) after stopping slip casting, color paste toning pump or suck-back device resorption α volume mill base;
(3) need slip casting β volume mill base next time, control slip casting alpha+beta volume mill base.
α, β are according to color mixing pump design principle, color mixing pump performs the actuating quantity sucking α or outpour alpha+beta mill base amount in theory, after stopping slip casting at every turn, color paste toning pump is resorption α volume mill base all, mill base is not retained in colour mixer mill base exit, just avoid colour mixer mill base exit to retain mill base to the impact outpouring micro-mill base, then trace to outpour mill base just more accurate; The more important thing is, identical colour mixer, if 1. not resorption α volume mill base, color mixing pump outpours β micro-scale volume mill base admission passage, need by being outpoured by outlet after passage A and channel B and departing from outlet, due to the characteristic of mill base, in this case, outlet often can not outpour β micro-scale volume mill base; But, 2. when α volume mill base is inhaled in color paste toning blowback, color paste toning infusion goes out alpha+beta volume mill base, outlet is just more accurate outpours β micro-scale volume mill base, its reason, may be color paste toning infusion when going out alpha+beta volume mill base, there is a large impact velocity in mill base in passage.
In described step (2) α volume scope Wei α≤1 μ l.The amount of concrete α, with color mixing pump to outpour precision and outlet diameter etc. relevant.
Actual slip casting γ volume in described step (3), then γ=alpha+beta+Δ β=(m+n) θ+Δ β, α=m θ, β=n θ, m, n are integer, θ is the theoretical amount that color paste toning pump stepper motor step further sucked or outpoured mill base, and Δ β is that actual measurement outpours the amount of mill base and the error of required mill base amount β; The numerical value of trace slip casting β volume is the integral multiple of θ.The numerical approximation of trace slip casting β volume chooses the integral multiple of θ, can eliminate part system error, make micro-slip casting accurate; In particular cases, Δ β≤θ, Δ β=L θ+Δ ' β, L are integer, Δ ' β < θ, namely now revise γ, correction is L θ; Reduce θ, color paste toning pump can be made more accurate.
Described passage A is communicated with channel B, outpours mill base by passage A and channel B, merges into a passage outpour mill base for passage A and channel B.As shown in Figure 3, wherein 8 is color mixing pumps to this situation, and 9 is lacquer exports, and remain color mixing pump resorption α volume mill base, in fact, color mixing pump is also communicated with mill base bucket by passage D.
Its other end of passage A that one end is communicated with color mixing pump and triple valve I inlet communication, triple valve I mono-outlet is communicated with channel B one end, and the channel B other end is communicated with mill base outlet; Another outlet of triple valve I is communicated with channel C one end, and the channel C other end is communicated with mill base bucket; Described passage A is communicated with channel B, outpours mill base by passage A and channel B, for triple valve I makes passage A be communicated with channel B, outpours mill base by passage A and channel B; α volume mill base is inhaled in described step (2) color paste toning blowback, and the suck-back device be communicated with for passage A top set substitutes color paste toning blowback suction α volume mill base.As described in Figure 4, wherein 10 is triple valve I to this situation, is suck-back device resorption α volume mill base, and when passage A is communicated with channel C, the mill base injection channel C of suck-back device resorption, so that suck-back device resorption again.
The suck-back device that described passage A top set is communicated with is the plunger displacement pump that described passage A top set is communicated with.This situation is plunger displacement pump resorption α volume mill base.
A kind of not only a large amount of slip casting but also the full-automatic colour mixer of micro-slip casting, the color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, by oblique plate plunger pump resorption α volume mill base, the letting out mill base window and enter the import of mill base window respectively parallel communication two triple valves of oblique plate plunger pump valve plate, the outlet of one of them triple valve is communicated with grout outlet by pipeline A, and the outlet of another triple valve is communicated with mill base bucket by pipeline D.This situation as shown in Figure 6, wherein 12 is oblique plate plunger pumps, when α volume mill base is inhaled in color paste toning blowback, enter mill base window to be communicated with grout outlet by pipeline A by a triple valve, just can resorption α volume mill base, now, let out mill base window and be communicated with mill base bucket with by pipeline D by another triple valve, the mill base of resorption injects mill base bucket; When color paste toning pump needs to outpour mill base, let out mill base window to be communicated with grout outlet by pipeline A by a triple valve, just can outpour mill base, now, enter mill base window to be communicated with mill base bucket with by pipeline D by another triple valve, the mill base outpoured is drawn in mill base bucket.
The color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, and the mill base window of letting out of oblique plate plunger pump valve plate is communicated with grout outlet by pipeline A, and by resorption plunger displacement pump resorption α volume mill base, described pipeline A top set is communicated with resorption plunger displacement pump.This situation, during resorption α volume mill base, suck-back device and resorption plunger displacement pump resorption, but, when outpouring, the mill base that the mill base of resorption plunger displacement pump resorption and color paste toning infusion go out is outpoured by grout outlet simultaneously, so that resorption α volume mill base after stopping slip casting, now, letting out mill base window and entering mill base window of oblique plate plunger pump valve plate is not the import must distinguishing parallel communication two triple valves, can like the prior art, letting out mill base window and entering mill base window of oblique plate plunger pump valve plate arranges check valve respectively.
The color paste toning pump of full-automatic colour mixer let out mill base window is communicated with triple valve import by pipeline A, an outlet of this triple valve is communicated with grout outlet by pipeline B, and an outlet of this triple valve is communicated with mill base bucket by pipeline C; The mill base window that enters of color paste toning pump is communicated with mill base bucket by pipeline D, and by resorption plunger displacement pump resorption α volume mill base, described pipeline A top set is communicated with resorption plunger displacement pump.This situation as shown in Figure 5, wherein 8 is color mixing pump, and is not limited only to single-column pump, also can be oblique plate plunger pump, 11 is suck-back devices, during resorption α volume mill base, be suck-back device and resorption plunger displacement pump resorption, the mill base of resorption plunger displacement pump resorption, when pipeline A is communicated with pipeline C by triple valve, the mill base of resorption can inject mill base bucket, and such oblique plate plunger pump can outpour the mill base of larger volume, and mill base produces a large impact velocity in passage.
For six cylinder inclined shaft pumps as miniature quantitative plunger pump in detail, operation principle of the present invention and working method are described in detail:
As depicted in figs. 1 and 2,1 is mill base bucket, and 2 is nozzle, 3 is two-position three-way valves, 4 is check valves, and 5 is 12 12 logical valves, and 6 is swash plates, 7 is pistons, a is swash plate inclined-plane minimum point, and b is swash plate inclined-plane peak, and in pump, each cylinder turnover mill base passage has been come by two pipes respectively, solid line indicates mill base pipeline, and dotted line represents into mill base pipeline.
1: AD cylinder cut-off, BC cylinder outpours, and EF cylinder sucks;
2: ABC cylinder outpours, and DEF cylinder sucks;
3: CF cylinder cut-off, AB cylinder outpours, and DE cylinder sucks;
4: ABF cylinder outpours, and CDE cylinder sucks;
5: BE cylinder cut-off, AF cylinder outpours, and CD cylinder sucks;
6: AEF cylinder outpours, and BCD cylinder sucks;
7: AD cylinder cut-off, EF cylinder outpours, and BC cylinder sucks;
8: DEF cylinder outpours, and ABC cylinder sucks;
9: CF cylinder cut-off, DE cylinder outpours, and AB cylinder sucks;
10: CDE cylinder outpours, and ABF cylinder sucks;
11: BE cylinder cut-off, CD cylinder outpours, and AF cylinder sucks;
12: BCD cylinder outpours, and AEF cylinder sucks;
Above 12 stations are six cylinder inclined shaft pumps rotate in one week (360o) duties at swash plate, and the continuous duty of six cylinder inclined shaft pumps repeats above 12 station state exactly; Wherein N position refers to the correspondence position that the minimum point of swash plate moves to, and 1 is the zero-bit of six cylinder inclined shaft pumps, and the every task of pump is all from this position.
Swash plate often rotates 60o (π/3) angle, always has a piston to be in zero-bit (minimum point of swash plate), and like this calculating angle, every 60o (π/3) just can as a computing cycle.Calculating is below exactly carry out in such a situa-tion:
The every task of pump is all from zero-bit;
The calculating angle 0<=a<=60o (π/3) of the rotation of rotating disk;
Wherein, a angle that turn to by swash plate; After swash plate rotational angle a, L1, L2, L3 are respectively the distance that three different pistons are walked on the trunnion axis corresponding to swash plate peak and minimum point, and h1, h2, h3 are respectively three the different hoisting depths of piston on swash plate inclined-plane; B is the oblique angle on swash plate inclined-plane, is a set-point.
Often rotate at swash plate the total kilometres s=h1+h2+h3 that a angle piston walks and use for reference trigonometric function formula , above each calculating formula is substituted into and arranges:
Can draw, in the scope of 0-π/3, the stroke S of piston increases gradually along with the increase of anglec of rotation a.
Use the stepper motor of 800 steps, the one-period calculated after superposition is as shown in the table:

Claims (9)

1. full-automatic colour mixer not only a large amount of slip casting but also a method for micro-slip casting, comprises the following steps:
(1) passage A is communicated with channel B, outpours mill base by passage A and channel B;
(2) after stopping slip casting, color paste toning pump or suck-back device resorption α volume mill base;
(3) need slip casting β volume mill base next time, control slip casting alpha+beta volume mill base.
2. full-automatic colour mixer according to claim 1 not only a large amount of slip casting but also the method for micro-slip casting, is characterized in that: in described step (2) α volume scope Wei α≤1 μ l.
3. full-automatic colour mixer according to claim 1 not only a large amount of slip casting but also the method for micro-slip casting, it is characterized in that: actual slip casting γ volume in described step (3), then γ=alpha+beta+Δ β=(m+n) θ+Δ β, α=m θ, β=n θ, m, n are integer, and θ is the theoretical amount that color paste toning pump stepper motor step further sucked or outpoured mill base, and Δ β is that actual measurement outpours the amount of mill base and the error of required mill base amount β; The numerical value of trace slip casting β volume is the integral multiple of θ.
4. according to the full-automatic colour mixer one of claim 1-3 Suo Shu not only a large amount of slip casting but also the method for micro-slip casting, it is characterized in that: described passage A is communicated with channel B, outpour mill base by passage A and channel B, merge into a passage for passage A and channel B and outpour mill base.
5. according to the full-automatic colour mixer one of claim 1-3 Suo Shu not only a large amount of slip casting but also the method for micro-slip casting, it is characterized in that: its other end of passage A that one end is communicated with color mixing pump and triple valve I inlet communication, triple valve I mono-outlet is communicated with channel B one end, and the channel B other end is communicated with mill base outlet; Another outlet of triple valve I is communicated with channel C one end, and the channel C other end is communicated with mill base bucket; Described passage A is communicated with channel B, outpours mill base by passage A and channel B, for triple valve I makes passage A be communicated with channel B, outpours mill base by passage A and channel B; α volume mill base is inhaled in described step (2) color paste toning blowback, and the suck-back device be communicated with for passage A top set substitutes color paste toning blowback suction α volume mill base.
6. full-automatic colour mixer according to claim 5 not only a large amount of slip casting but also the method for micro-slip casting, is characterized in that: the suck-back device that described passage A top set is communicated with, and is the plunger displacement pump that described passage A top set is communicated with.
7. according to claim 4 not only a large amount of slip casting but also the full-automatic colour mixer of micro-slip casting, the color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, by oblique plate plunger pump resorption α volume mill base, it is characterized in that: the letting out mill base window and enter the import of mill base window respectively parallel communication two triple valves of oblique plate plunger pump valve plate, the outlet of one of them triple valve is communicated with grout outlet by pipeline A, and the outlet of another triple valve is communicated with mill base bucket by pipeline D.
8. according to claim 4 not only a large amount of slip casting but also the full-automatic colour mixer of micro-slip casting, the color paste toning pump of full-automatic colour mixer is oblique plate plunger pump, the mill base window of letting out of oblique plate plunger pump valve plate is communicated with grout outlet by pipeline A, by resorption plunger displacement pump resorption α volume mill base, it is characterized in that: described pipeline A top set is communicated with resorption plunger displacement pump.
9. according to claim 6 not only a large amount of slip casting but also the full-automatic colour mixer of micro-slip casting, the color paste toning pump of full-automatic colour mixer let out mill base window is communicated with triple valve import by pipeline A, an outlet of this triple valve is communicated with grout outlet by pipeline B, and an outlet of this triple valve is communicated with mill base bucket by pipeline C; The mill base window that enters of color paste toning pump is communicated with mill base bucket by pipeline D, by resorption plunger displacement pump resorption α volume mill base, it is characterized in that: described pipeline A top set is communicated with resorption plunger displacement pump.
CN201410124805.7A 2014-02-14 2014-03-31 A kind of method and device of full-automatic colour mixer not only a large amount of slip castings but also micro slip casting Active CN104841298B (en)

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CN201410124805.7A CN104841298B (en) 2014-02-14 2014-03-31 A kind of method and device of full-automatic colour mixer not only a large amount of slip castings but also micro slip casting
PCT/CN2015/070796 WO2015120763A1 (en) 2014-02-14 2015-01-15 Method and device for injecting paste both in large amounts and in trace amounts by automatic dispenser

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CN201410051276 2014-02-14
CN2014100512762 2014-02-14
CN2014100528968 2014-02-17
CN201410052896 2014-02-17
CN201410124805.7A CN104841298B (en) 2014-02-14 2014-03-31 A kind of method and device of full-automatic colour mixer not only a large amount of slip castings but also micro slip casting

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CN201921667U (en) * 2011-01-13 2011-08-10 沈如华 Color paste fixed-amount outpour mechanism applicable to automatic color mixer
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CN107781129A (en) * 2016-08-30 2018-03-09 郑州三华科技实业有限公司 Three-level variable color paste pump and its operating method
CN115318189A (en) * 2022-08-30 2022-11-11 郑州三华科技实业有限公司 Paint toning system and paint toning method
CN115318189B (en) * 2022-08-30 2023-11-17 郑州三华科技实业有限公司 Paint color mixing system and color mixing method of paint

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