CN109173827B - Weight and volume mixed color mixing method for automobile refinishing paint - Google Patents
Weight and volume mixed color mixing method for automobile refinishing paint Download PDFInfo
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- CN109173827B CN109173827B CN201811078430.XA CN201811078430A CN109173827B CN 109173827 B CN109173827 B CN 109173827B CN 201811078430 A CN201811078430 A CN 201811078430A CN 109173827 B CN109173827 B CN 109173827B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2116—Volume
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
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Abstract
In order to solve the technical bias, the invention provides a weight and volume mixed color mixing method for automobile refinishing paint with accurate color master batch proportioningThe method comprises the following steps: (1) searching the weight formula of the refinishing paint; (2) converting a corresponding refinishing paint volume formula according to the refinishing paint weight formula and the measured color master proportion; (3) calculating the type of the needed color master batch and the volume and weight needed by each color master batch; (4) finding out the color master barrel corresponding to any color master A according to the required color master types, and taking out a large half V of the volume V required by the color master A1M of weighing1(ii) a Subtracting M from the weight M required by color master batch1Obtained weight M2Converting the volume V according to the color master batch specific gravity measured in the step (2)2Taking the volume as V2Finishing the material taking of the color master A; (5) taking other color masterbatches in sequence according to the method in the step (4); mixing and stirring the color master batch.
Description
Technical Field
The invention belongs to the field of automatic blending of automobile refinishing paints, and particularly relates to a weight and volume mixed color mixing method of an automobile refinishing paint.
Background
And the automobile repair paint is required to be sprayed again at the automobile painting damaged part. The color concentrates required by different automobile refinishing paints are different. In order to meet the requirements of different automobiles, the types of color concentrates required by color matching of the automobile paint are many, and about 50 to 90 color concentrates are much more than the types of emulsion paints. The automatic color mixer for the automobile repair paint needs to be provided with so many color master cylinders, and the required space is large. For any kind of automatic color matching of automobile refinishing paint, the paint mixing cup needs to be accurately moved to the front of all required color master cylinders to receive materials, so that an automatic color mixer is required to have an accurate and complex transmission system, and the cost is increased. There is a need for an automatic tinting machine for refinish paints in automobiles that occupies less space and is less costly.
When matching colors before spraying the repair paint, one of the common methods is to compare the color card with the color of the automobile, find the color card with the same color, find the color master proportion and the weight formula of each color master of the color card number from the color matching software database in the computer according to the color card number, and manually weigh the required types of color masters, mix and stir to prepare the repair paint (hereinafter, may be referred to as the automobile paint) with the same color as the color card. The automobile repair paint which is prepared according to the color card has low manual efficiency, sometimes has certain deviation with the color of the automobile, needs manual further adjustment, is labor-consuming and has higher technical requirements for a color adjuster, and can prepare the automobile paint with consistent color by an experienced color adjuster.
In the prior art, a method for finding a paint spraying formula before leaving a factory according to the model number or the paint code of an automobile or measuring the surface paint of the automobile by using an optical instrument (a spectrophotometer) to obtain a paint mixing formula is also provided, so that the obtained formula method can be suitable for analyzing most of the surface paint of the automobile, is relatively accurate, and reduces the error between the color of the automobile paint mixed according to the formula obtained according to the model number or the paint code and the color of the actual automobile paint. However, even then, the previously counted data indicate that there is a significant proportion of the paint on the surface of the automobile that has been color-shifted after a color match, and further manual color-matching correction is required. Therefore, the color matching of the current automobile refinishing paint has high requirement on manpower and large dependence, the manual color matching efficiency is low, especially, the color matching amount of some paint mixing shops in one day is very large and can reach dozens or hundreds of colors, one color matching worker can not finish the color matching, and some shops even need two or four color matching workers. Even so, because of the labor intensity, poor environment (color sticking everywhere, even on the body), and the long-time accumulation of technological improvement, people are still reluctant to dry the color matching worker. On the other hand, it is very difficult to recruit a good color matching worker, and the wage is low and the person is not dry. The current color matching technicians are necessary, and the paint matching profit of a paint matching shop with little color matching amount or an auxiliary business (such as an existing 4S shop) cannot be covered by the salary of a paint matching worker. Therefore, the equipment for automatically and accurately blending the color matching color master batches in the market can achieve the aims of improving the efficiency, reducing the blending technical requirements and reducing the labor cost.
In fact, in recent years, enterprises have developed automatic car refinish paint tinting machines. But does not form a stable product for market. It is known that the existing mature and universal automobile paint color mixing method in the world adopts a weight ratio mode, and color master batches are manually poured out from a paint bucket to be weighed, matched and mixed. According to the weight requirement of the required color matching color master, the color master is manually poured out from a color master barrel with a pulp cover on the upper part through a pulp outlet on the pulp cover. Weighing the required color matching color master batch on an electronic scale. The color matching color master in each formula is poured out from the color master barrel and weighed to reach the required weight. Stirring, mixing and color matching color master batch to finish color matching of the paint with the required color. The slurry cover has the functions of stirring and manually controlling the pouring of color master batches. At present, the color matching formula of manufacturers (such as new-in, DuPont, PPG and Basff) for manufacturing the color matching color master batch of the automobile refinishing paint in the world is designed according to the weight ratio.
The advantages of manual paint pouring and color mixing in weight ratio are two:
1 pour out the look female convenience of required volume from look female bucket, it is also convenient to control the volume of pouring out: and manually controlling to gradually slow down the pouring speed of the color master when the required weight on the weighing scale is observed to be fast, so that the color master slowly approaches the required pouring weight, and stopping pouring the color master until the required color master weight is finally reached. Pouring out and weighing the required weight of other color matching color masterbatches according to the same method;
2, several color concentrates needing color matching can be poured into a container to be directly stirred uniformly: for example, if three color concentrates are required for one color, the weight of each color concentrate is 1.1 g for color A, 2.2 g for color B and 3.3 g for color C, an empty barrel can be placed on an electronic scale, and the weights are reset. The color master A was poured into the empty barrel until the weight of the scale indicated 1.1 g. Resetting the electronic scale, and pouring color master B until the weight displayed by the electronic scale is 2.2 g; and then, resetting the electronic scale, and pouring the C color paste until the electronic scale displays 3.3 g. And finally, uniformly stirring the three color masterbatches by using a stirring ruler to finish color matching and color mixing.
The use of weight toning is the first natural choice for the toning history. In order to avoid that the proportion of color master is not accurately known and the required amount of the color master cannot be accurately controlled by empirical color matching, the most conveniently realized weight proportion method accurate color matching is generated on the basis of the empirical color matching.
It is also true theoretically that volume-scale matching is used. However, theoretically established volume ratio color schemes are difficult to achieve in practice. The idea of obtaining color matching color master batch with required volume by a volume ratio color matching method comprises the following steps: consider 1: the color master is manually poured into the measuring cup, and the poured color master is observed and controlled by human eyes according to the volume scale measuring mark position of the measuring cup. However, this has a problem that, due to the characteristics of the colored paint, the accuracy of the volume amount of the color master when the position of the graduated measuring scale of the measuring cup is observed by human eyes to determine the volume amount of the color master does not reach the accuracy of 0.1 gram weight, particularly, the volume of the measuring cup is large when a large amount of colored paint is mixed, the sectional area of the measuring cup is larger, and the error of the human eyes to determine whether the color master reaches the specified position of the measuring scale is larger, and the color mixing accuracy requirement of 0.1 gram cannot be met at all. In addition, the inaccurate manual volume color matching method is much more difficult and fussy in actual operation than the weight ratio color matching method, so that effective color matching cannot be realized; consider 2: using a gravity cup method: because of the wall-hanging residue of the color master and the discontinuity of volume metering, the required volume is difficult to realize in practical application; consider 3: manual syringe volumetric metering method: because the color master batch at the position of the injection tube head for extracting the color master batch is hung and taken, precision errors can be caused, the removal of the hung color master batch is not only troublesome but also not environment-friendly, and if the color master batch is not cleaned, the color master batch can flow to the position of the outlet of the needle tube head to influence the error guarantee below 0.1 g. Similarly, the viscous color masterbatch is manually injected, even a person with small strength pushes the viscous color masterbatch, the diameter of the injection tube is reduced, the injection force can be reduced, the single pushing precision is improved, the large-amount color masterbatch is accurately injected and needs to be pumped into a color masterbatch container for color masterbatch extraction for many times, the hung color masterbatch at the opening of the injection tube needs to be removed in each extraction, the accumulated error is increased due to the increase of the times, the 0.1 g error is more difficult to control at the moment, the color matching is more complicated and more frequent than the currently used weight ratio method, the color matching industry can certainly select a simple and easy-to-realize weight ratio method for color matching, and the color matching can not select the volume ratio method which is troublesome and difficult to ensure the precision.
The person skilled in the art does not consider the use of volume ratios to achieve color matching after the advent of weight ratio color matching methods. Since from the past to the present, the industry has been judged not to replace the color mixing and matching by weight ratio after analyzing the above-mentioned influence factors, which is a technical prejudice to the profession in the mind of the industry.
Disclosure of Invention
Automotive paint repairs have been known for over 100 years and are color blended by weight ratio. Mainly because volume measurement is inaccurate, the equipment after being pushed out can not meet the requirement, foreign first-class manufacturers try to solve the problem for a long time, and people generally think that the automobile paint can only be measured by weight ratio. The known art also describes the repair of automotive paints. For example, in the blending of the color of the automobile paint, king demon, king lijun, chemical industry press publication 2005-7.6.3 automobile repair push-pull top paint, it is explicitly pointed out that the electronic balance is used for weighing the paint, the coloring paint needs to be added in a plurality of batches and in a small amount, the excessive materials are avoided, a small amount of paint is firstly added each time, and the proportion is enlarged as required after the paint is completely matched. This is common knowledge in the art and has led to a technical prejudice against the use of volumetric counterweights.
In order to solve the technical bias, the invention provides a weight and volume mixed color mixing method for an automobile refinishing paint with accurate color master batch proportioning.
The object of the invention is achieved in the following way: the weight and volume mixed color mixing method of the automobile refinishing paint comprises the following steps of:
(1) checking out the automobile data ID card printed with the color number on the repaired automobile body, checking out the color code of the automobile or comparing the color code with the color card code which is close to the color code; finding out the weight formula of the repair paint by using a reader or a computer color matching system; or detecting the surface of the complete part of the vehicle body coating to be repaired by using a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) converting a corresponding refinishing paint volume formula according to the refinishing paint weight formula and the measured color master proportion;
(3) calculating the type of color master batch required and the volume required by each color master batch according to the volume formula of the repair paint and the area to be repaired; calculating the type of the needed color master batch and the needed weight of each color master batch according to the weight formula of the repair paint and the area to be repaired;
(4) finding out the color master barrel corresponding to any color master A according to the required color master types, and taking out a large half V of the volume V required by the color master A1M of weighing1(ii) a Subtracting M from the weight M required by color master batch1Obtained weight M2Converting the volume V according to the color master batch specific gravity measured in the step (2)2Taking the volume as V2Finishing the material taking of the color master A;
(5) finding color master barrels corresponding to the rest color masters in sequence according to the types of the needed color masters, and finishing the material taking of the other color masters in sequence according to the method in the step (4); mixing and stirring the color master batch.
V is a large half of the volume V needed by the color master A1The criteria for (A) are: calculating V according to the specific gravity range of the color master A1Such that it is less than the weight M required for the masterbatch.
The color master batch specific gravity measuring method comprises the following steps: a high-precision volume pump of a laboratory or the volume pump of the invention is used for pumping out the color master with a preset volume, an electronic scale with the precision of +/-0.001 g or 0.01g is used for weighing, and the weight is divided by the volume to obtain the actual color master specific gravity.
The invention has the beneficial effects that: the method has the advantages that for the condition that the specific gravity of the color master is stable or the condition that the required amount of the color master is less, the accurate color master taking can be realized by using a volume method, the structure is simple, the metering is accurate, and the technical bias is overcome. For color masterbatch with unstable color masterbatch specific gravity and large change, the added color masterbatch amount is inaccurate due to the single use of the volume, thereby influencing the paint mixing, especially when the needed color masterbatch amount is more. The weight and volume mixed color mixing method firstly calculates the required volume, injects color master batches with different volumes in two times, firstly enlarges the volume, calculates the rest required weight after weighing, and then converts the weight into the volume to inject. Therefore, the volume of the second injection is smaller, and even if the proportion of the color master batch is shifted to be larger, the absolute error is smaller because the volume of the second injection is small. The error amount is within an acceptable error range relative to the total required color master batch amount.
Drawings
Fig. 1 is a general schematic diagram of a tinting machine.
Fig. 2 is a color master batch injection mechanism arrangement diagram on the color master batch rotary table.
Fig. 3 is a schematic view of a color masterbatch volume injection mechanism.
Fig. 4 is an internal structure view of fig. 3.
Fig. 5 is a schematic diagram of a paint receiving and mixing component.
Fig. 6 is a schematic view of the reverse side of fig. 5.
Fig. 7 is a take-off mechanism.
Fig. 8 is a cup holder plate embodiment 1.
FIG. 9 shows a cup holder plate according to example 2
The automatic volume control device comprises a machine body 1, a color-setting volume injection mechanism 2, a material-receiving and paint-mixing component 3, a color-setting rotary table 4, a material taking mechanism 5, a cup supporting plate 6, a drop receiving box 7, a color-setting barrel 20, a valve body 21, a volume metering pump 22, a slurry outlet nozzle 23, a valve body deflector rod 24, an injection channel 25, a piston rod 26, a valve motor 33, a second linear driving mechanism 34, a lifting driving mechanism 50, a bracket 51, a middle conveyor belt conveying mechanism 52, a side conveyor belt conveying mechanism 53, a gap 54, an in-place sensor 55, a barrel cover 201, a stirring shaft 202, a breather valve 205, a spiral stirring blade 207, a pull rod head baffle 340, a lead screw 341 and a nut 342.
Detailed Description
For the condition that the color master batch has stable specific gravity or the condition that the required amount of the color master batch is less, the precise color master batch taking can be realized by using a volume method. The method of color matching by volume ratio is as follows;
the volume color matching method for the automobile refinishing paint comprises the following steps:
(1) checking out the automobile data identity card printed with the color number on the repaired automobile body, checking out the color code of the automobile or comparing the color code with the color card code, and finding out the weight formula of the repair paint by using a reader or a computer color matching system; or detecting the surface of the complete part of the vehicle body coating to be repaired by using a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) converting a corresponding refinishing paint volume formula according to the refinishing paint weight formula and the measured color master proportion;
(3) calculating the type and the volume of the needed color master according to the volume formula of the repair paint and the area to be repaired;
(4) and obtaining color master batches according to the type and the volume of the required color master batches and mixing the color master batches.
The specific gravity of the color master is measured by using the high-precision volume pump of the invention to pump out a preset volume of the color master, such as 30 milliliters. Weighing with an electronic scale with the precision of +/-0.001 g or +/-0.01 g, wherein the weight is within the volume to obtain the actual color master batch specific gravity. The test can be carried out once, and the test can be carried out for a plurality of times, and the average value is taken. The method is suitable for color masterbatch with relatively stable density. At present, in the field of color matching of automobile refinishing paints, various color pastes are prepared according to the weight proportion. This method requires an additional weighing device such as an electronic scale. The automobile refinishing paint with the preset effect is prepared by using various color pastes according to the volume ratio, a weighing device is not needed, and the structure is simple.
For color masterbatch with unstable color masterbatch specific gravity and large change, the use volume can cause inaccurate color masterbatch amount, thereby influencing paint mixing, especially when the needed color masterbatch amount is more. The following weight volume mixing color matching method can be adopted for accuracy;
the weight and volume mixed color mixing method of the automobile refinishing paint comprises the following steps of:
(1) checking out the automobile data ID card printed with the color number on the repaired automobile body, checking out the color code of the automobile or comparing the color code with the color card code which is close to the color code; finding out the weight formula of the repair paint by using a reader or a computer color matching system; or detecting the surface of the complete part of the vehicle body coating to be repaired by using a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) converting a corresponding refinishing paint volume formula according to the refinishing paint weight formula and the measured color master proportion;
(3) calculating the type of color master batch required and the volume required by each color master batch according to the volume formula of the repair paint and the area to be repaired; calculating the type of the needed color master batch and the needed weight of each color master batch according to the weight formula of the repair paint and the area to be repaired;
(4) finding out a color master barrel corresponding to one color master A according to the required color master types, and taking out a large half V of the volume V required by the color master A1M of weighing1(ii) a Subtracting M from the weight M required by color master batch1Obtained weight M2Converting the volume V according to the color master batch specific gravity measured in the step (2)2Taking the volume as V2Finishing the material taking of the color master A;
(5) finding color master barrels corresponding to the rest color masters in sequence according to the types of the needed color masters, and finishing the material taking of the other color masters in sequence according to the method in the step (4); mixing and stirring the color master batch.
Wherein, the volume V of the color master A is more than half V1The criteria for (A) are: calculating V according to the specific gravity range of the color master A1Such that it is less than the weight M required for the masterbatch. A high-precision volume pump of a laboratory or the volume pump of the invention is used for pumping out the color master with a preset volume, an electronic scale with the precision of +/-0.001 g or 0.01g is used for weighing, and the weight is divided by the volume to obtain the actual color master specific gravity. The method firstly calculates the required volume, injects color master batches with different volumes in two times, firstly enlarges the volume, calculates the rest required weight after weighing, and then converts the weight into the volume to inject. Therefore, the volume of the second injection is smaller, and even if the proportion of the color master batch is shifted to be larger, the absolute error is smaller because the volume of the second injection is small. The error amount is within an acceptable error range relative to the total required color master batch amount.
As shown in fig. 1-7, the automatic color mixer for automobile refinish paint comprises a machine body 1, a controller, and at least two color master rotating discs 4 driven by a rotary driving mechanism to rotate on the machine body 1, wherein one color master rotating disc 4 is positioned on the upper layer of the machine body 1, and at least one color master rotating disc 4 is positioned on the lower layer of the machine body 1; a color master injection mechanism is arranged on the color master rotary table 4 and comprises a slurry outlet nozzle 23 controlled by a valve; the slurry outlet nozzles 23 of each color master injection mechanism are arranged in a circle on the color master rotary table 4, and each color master rotary table 4 is provided with a slurry receiving position; the color master rotating disc 4 rotates to enable each slurry outlet nozzle 23 to pass above the slurry receiving position in sequence; the machine body 1 is provided with a material taking mechanism 5 which can change the positions of the paint mixing cups between the positions where the respective color master turntables 4 receive the slurry.
The material taking mechanism 5 comprises a lifting driving mechanism 50 arranged on the machine body 1, and a bracket 51 which moves up and down and is used for placing the cup supporting plate 6 and the paint mixing cup is arranged on the lifting driving mechanism 50; a conveyor belt conveying mechanism is horizontally arranged at the upper and lower positions of the machine body 1; the belt transmission mechanism includes a middle belt conveying mechanism 52 located right below the bracket 51 and side belt conveying mechanisms 53 located on both left and right sides of the middle belt conveying mechanism 52 with a gap 54 therebetween. The intermediate belt conveying mechanism 52 and the side belt conveying mechanism 53 are driven to rotate by a speed reduction motor to drive the belt wheels to rotate, respectively. The bracket 51 comprises two cross rods respectively corresponding to two clearance positions and a connecting rod for connecting the two cross rods, the connecting rod is positioned outside the conveyor belt conveying mechanism at the corresponding position of the bracket 51, and when the upper surfaces of the two cross rods are lowered to be flush with the upper surface of the conveyor belt of the middle conveyor belt conveying mechanism 52, the connecting rod is not contacted with the conveyor belt conveying mechanism; the lifting drive mechanism 50 and the conveyor belt transport mechanism are electrically connected to the controller.
A cup supporting plate 6 on which a paint mixing cup is arranged on the bracket 51; when the upper surfaces of the two bars are lowered below the upper surface of the conveyor of the intermediate conveyor transport 52, the lower surface of the cup holder plate 6 is above the uppermost surface of the two bars and above the surface defined by the conveyor transport.
The connecting rods are located outside the belt conveyors at the corresponding positions of the brackets 51 so that the connecting rods are located at positions on both sides or positions other than the positions on both sides of the intermediate belt conveyor 52. When the cross bar descends into the gap 54, the connecting rods must not contact if they are outside the conveyor belt transmission mechanism, and at this time, there is no structure on the conveyor belt transmission mechanism that would impede the movement of the carriages; if the connecting rod is positioned at the two sides of the conveying mechanism of the conveying belt, the two sides are parallel to the conveying direction; that is, the bracket 51 has a quadrangular structure formed by two cross bars and two connecting rods, and the height of the lower bottom surface of the connecting rod corresponding to the region of the intermediate conveyor belt conveying mechanism 52 is higher than the height of the upper surface of the cross bar. At this moment, the height of the lower bottom surface of the connecting rod is higher than that of the upper surface of the cross rod, and the connecting rod does not influence transmission. The elevation drive mechanism 50 may be a lead screw nut mechanism; comprises a lead screw arranged on the machine body 1 and a nut connecting bracket 51. The cup supporting plate 6 is provided with a groove with adjustable height and special for placing the paint mixing cup.
The material taking mode is that the upper layer pulp taking position is moved to the lower layer pulp taking position: the elevating drive mechanism 50 drives the bracket 51 to move down until the cross bars are positioned in the gap, the upper surfaces of the cross bars are lower than the upper surface of the conveyor belt in the conveyor belt conveying mechanism 52, and at this time, the cup supporting plates 6 positioned on the two cross bars fall on the upper surface of the intermediate conveyor belt conveying mechanism 52. The middle conveyor belt conveying mechanism 52 and the side edge conveyor belt conveying mechanism 53 corresponding to the lower layer slurry taking position rotate to convey the cup supporting plate 6 and the paint mixing cup to the corresponding slurry taking position. The steps are reversed from the lower layer back to the upper layer.
An in-place sensor 55 is arranged on the side conveyor belt conveying mechanism 53 corresponding to the position of the color master batch turntable on the lower layer of the machine body at the slurry receiving position. The intermediate conveyor belt conveying mechanism 52 is provided with an in-position sensor 55; an in-place sensor 55 is arranged on the lifting driving mechanism 50 corresponding to the position of the slurry receiving position of the upper color master turntable 4 of the machine body 1. The in-position sensor sends out a signal after sensing, and the control system controls the middle conveyor belt conveying mechanism 52 or the side conveyor belt conveying mechanism 53 to start or stop. The feeding mechanism 5 can be used for color matching with volume ratio and color mixing with weight and volume. By adopting volume ratio color matching, the color master injection mechanism on the color master rotary table 4 only needs to use a fixed volume injection mechanism. And adopt the weight volume to mix colours and mix colours, need the look female on the look female carousel 4 to annotate out the mechanism and use and annotate out the mechanism by the volume to need to place the paint cup of adjusting on the electronic scale, the electronic scale moves along with holding in the palm cup board 6.
When the color master batch injection mechanism is a color master batch volume injection mechanism 2, the color master batch injection mechanism comprises a color master batch barrel 20 and a volume metering pump 22 which is connected with the color master batch barrel 20 through a valve body 21 and is driven by a driving mechanism to inject a fixed volume; the valve body 21 is provided with a slurry outlet 23. The valve body 21 has on-off and commutation functions. The volumetric pump 22 may be a volumetric pump, such as a piston pump or a plunger pump, driven by a stepper motor, or a servo motor, or a direct motor.
A valve body deflector rod 24 is arranged on a valve body 21 of the color masterbatch volume injection mechanism 2, and an injection channel 25 is arranged in the valve body 21. The machine body 1 is provided with a material receiving and paint mixing part 3 positioned above the slurry outlet, and the material receiving and paint mixing part 3 is provided with a valve motor 33 which stirs the valve body deflector rod 24 to rotate so as to enable the injection channel 25 to be communicated with or closed from the slurry outlet nozzle 23. A lever is provided on the valve motor 33 and rotates to rotate the valve body lever 24.
The volumetric pump 22 may be a piston pump; a second linear driving mechanism 34 is arranged above a valve motor 33 on the material receiving and paint adjusting part 3, and a pull rod head baffle 340 which moves up and down is arranged on the second linear driving mechanism 34 to lift or press a piston rod 26 of the piston pump. The second linear driving mechanism 34 may be a screw-nut mechanism, a second servo motor is disposed on the material-receiving paint-mixing component 3 to drive a rotating screw 341, and a nut 342 disposed on the screw are connected to the tie-rod head baffle 340. The pull rod head baffle comprises a groove-shaped structure, and a piston head of the piston rod leaves or enters a groove of the groove-shaped structure along with the rotation of the color master barrel. The nut 342 moves up and down to move the piston rod up and down so as to suck away the color master from the color master barrel and eject the color master.
The lower part of the valve motor 33 on the material receiving and paint adjusting part 3 is also provided with a drip receiving box 7 which is driven by the driving mechanism to move, and the drip receiving box 7 comprises a drip receiving station positioned right above the paint adjusting cup and an avoiding station avoiding the position of the paint adjusting cup. Connect and set up third linear motion mechanism on the paint mixing part 3, for example the motor drives the gear, and gear rotation drives the rack and removes, connects and drips box 7 and rack connection and remove together. Or the moving frame is provided with an air cylinder, and the piston rod of the air cylinder drives the drip receiving box 7 to move together. When the outlet channel 25 is closed, i.e. when the outlet nozzle 23 is no longer discharging, there may be residual color paste. The setting connects and drips box 7, annotates out the back that passageway 25 closed, connects to drip box 7 and moves out the thick liquid mouth 23 under and avoid remaining mill base to drip into mixing paint cup, influence the precision.
A barrel cover 201 is hermetically arranged on the color master barrel 20, and a breather valve 205 is arranged on the barrel cover; the inside of the color mother barrel 20 is provided with a stirring shaft 202 which is driven by a driving mechanism to rotate and one end of which extends into the color mother barrel, and the stirring shaft 202 is provided with a spiral stirring blade 207. An anti-corrosion sealing ring is arranged between the color master barrel 20 and the barrel cover 201, and the sealing ring is made of an anti-corrosion material and can adapt to the corrosivity of color master of automobile paint. The spiral stirring blade 207 is a foam cutting type blade, and can be used for beating the color master slurry onto the barrel wall in the stirring process, beating out or breaking the bubbles, and facilitating volume measurement. Since the more bubbles, the less accurate the volumetric metering. This is a different place than the stirring blades used for latex paints. The stirring driving mode of the stirring shaft 202 refers to a latex paint stirring driving mode with a rotating disc type structure, which is the prior art and is not described in detail here.
The breather valve (205) is a one-way valve with two opposite directions. The valve body 21 is a reflux valve, and the volume metering pump 22 is a large and small combined pump. The structure of the return valve and the combined size pump may be as in patent CN201410792479.7 or in CN201711400600.7 or in CN 201310045508.9. The reflux valve is internally provided with a reflux channel, when the valve body 21 is in a closed state, namely color paste is not injected, the reflux channel is communicated, namely the valve body 21 is communicated with the color master barrel 20, and the automobile repair paint can flow back into the color master barrel 20. Because the automotive refinish paint is relatively viscous, the pour-out channel 25 is easily dried and blocked without a backflow channel, resulting in difficulty in paint removal.
Connect and set up on the material accent lacquer part 3 and sweep a yard module, set up the two-dimensional code on the mechanism 2 is annotated out to masterbatch volume. The code scanning module is a scanning gun, and the two-dimensional code records information such as color numbers of color master barrels. The material is taken for the first time, and each color masterbatch volume injection mechanism 2 needs to be scanned and confirmed. After the color master barrel 20 is replaced, the color master barrel 20 needs to be scanned again.
Organism lower floor sets up two look female carousels, and three look female carousel is article word and arranges. This configuration, in conjunction with the take-off mechanism 5 of the present invention, maximizes space utilization. The lower color master batch turntable 4 is arranged on the machine body supporting plate; the machine body supporting plate is arranged on the machine body 1 in a sliding manner; the outer surface of the supporting plate of the machine body 1 is provided with a handle. Can pull out lower floor's look female carousel, easy to assemble dismantles.
Figures 8-9 illustrate two cup holders. Fig. 8 shows a structure in which no electronic scale is provided on the pallet plate. In fig. 9, an electronic scale is arranged on the cup supporting plate, and a groove for preventing paint mixing is arranged on the electronic scale. The structure of fig. 8 is adapted to the method of matching colors using volume ratios. The structure of fig. 9 may be used in a method of weight volume mixed color matching.
In the specific implementation: for the volumetric color matching method: firstly, the system detects the weight ratio of the automobile repair paint, converts the volume ratio required by the automobile repair paint according to the automobile repair paint volume color matching method, and finds the position of the corresponding color master volume injection mechanism 2. The material taking mechanism 5 moves the cup supporting plate 6 and the paint mixing cup to the position of the corresponding color master turntable 4 for taking the paste, and the color master turntable 4 rotates to enable the paste outlet nozzle 23 of the required color master volume injection mechanism 2 to pass through the upper part of the paint mixing cup and stop. When the second linear driving mechanism 34 is started, the lead screw 341 rotates to drive the nut 342 to move upwards, the pull rod head baffle 340 drives the piston rod 26 of the volume metering pump 22 to ascend to extract color paste, after the piston rod 26 descends by a preset displacement, the valve motor 33 is started, the pouring channel 25 of the valve body 21 is communicated with the paste outlet 23, the piston rod 26 continues to descend, and a predetermined amount of color paste flows out of the paste outlet 23 to the paint mixing cup. The valve motor 33 is closed and the drip box 7 is moved under the outlet nozzle 23. The color master rotating disc 4 rotates to the position where the next color master discharging nozzle 23 needing color master reaches the position of the color discharging position, the drip receiving box 7 is moved away, and material taking is carried out. After the color masterbatch on the color masterbatch rotary disc 4 is taken out, the color masterbatch is moved to the slurry taking position of the next color masterbatch rotary disc 4 through the material taking mechanism 5 to take the color masterbatch. After all the paint cups are taken out, the paint mixing cups are moved to a preset position, and are generally on a conveyor belt of an intermediate conveyor belt conveying mechanism to wait for taking out.
The method for mixing and matching colors by weight and volume comprises the following steps: the difference from the above mode is that: when a preset amount of color master is taken, the color master with most volume needs to be taken firstly, weighed, the residual required weight is calculated, the residual required volume is converted, and the color master is taken out.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (3)
1. The weight and volume mixed color mixing method of the automobile refinishing paint is characterized by comprising the following steps of: the method comprises the following steps:
(1) checking out the automobile data ID card printed with the color number on the repaired automobile body, checking out the color code of the automobile or comparing the color code with the color card code which is close to the color code; finding out the weight formula of the repair paint by using a reader or a computer color matching system; or detecting the surface of the complete part of the vehicle body coating to be repaired by using a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) converting a corresponding refinishing paint volume formula according to the refinishing paint weight formula and the measured color master proportion;
(3) calculating the type of color master batch required and the volume required by each color master batch according to the volume formula of the repair paint and the area to be repaired; calculating the type of the needed color master batch and the needed weight of each color master batch according to the weight formula of the repair paint and the area to be repaired;
(4) finding out a color master barrel corresponding to one color master A according to the required color master types, and taking out a large half volume V of the volume V required by the color master A1M of weighing1(ii) a Subtracting M from the weight M required by color master batch1Obtained weight M2Converting the volume V according to the color master batch specific gravity measured in the step (2)2Taking the volume as V2Finishing the material taking of the color master A;
(5) finding color master barrels corresponding to the rest color masters in sequence according to the types of the needed color masters, and finishing the material taking of the other color masters in sequence according to the method in the step (4); mixing and stirring the color master batch.
2. The method for mixing and toning automobile refinishing paint by weight and volume according to claim 1, which is characterized in that: v is a large half of V required by color master A1The criteria for (A) are: calculating V according to the specific gravity range of the color master A1Such that it is less than the weight M required for the masterbatch.
3. The method for mixing and toning automobile refinishing paint by weight and volume according to claim 1, which is characterized in that: the color master batch specific gravity measuring method comprises the following steps: and (3) pumping out the color master batch with a preset volume by using a high-precision volume pump, weighing by using an electronic scale with the precision of +/-0.001 g or 0.01g, and dividing the weight by the volume to obtain the actual color master batch specific gravity.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078430.XA CN109173827B (en) | 2018-09-17 | 2018-09-17 | Weight and volume mixed color mixing method for automobile refinishing paint |
| BR112021004914-2A BR112021004914A2 (en) | 2018-09-17 | 2019-09-16 | color mixing weight and volume combination method, recovery mechanism and automatic color mixer for automotive refinish |
| EP19862774.7A EP3854474A4 (en) | 2018-09-17 | 2019-09-16 | Weight-volume mixed color matching method for vehicle refinishing paint, material taking mechanism, and automatic color mixer |
| KR1020217007373A KR102563377B1 (en) | 2018-09-17 | 2019-09-16 | Automotive refinish paint weight volume mixing color matching method, material acquisition mechanism and automatic color mixer |
| PCT/CN2019/105989 WO2020057464A1 (en) | 2018-09-17 | 2019-09-16 | Weight-volume mixed color matching method for vehicle refinishing paint, material taking mechanism, and automatic color mixer |
| US17/274,124 US20210252465A1 (en) | 2018-09-17 | 2019-09-16 | Weight-volume mixing color matching method, reclamation mechanism and automatic color mixer for automobile refinishing paintings |
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| CN201811078430.XA CN109173827B (en) | 2018-09-17 | 2018-09-17 | Weight and volume mixed color mixing method for automobile refinishing paint |
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| CN109173827A CN109173827A (en) | 2019-01-11 |
| CN109173827B true CN109173827B (en) | 2021-02-05 |
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| EP3854474A4 (en) * | 2018-09-17 | 2022-11-30 | Zhengzhou Sanhua Technology & Industry Co., Ltd. | Weight-volume mixed color matching method for vehicle refinishing paint, material taking mechanism, and automatic color mixer |
| WO2020057458A1 (en) * | 2018-09-17 | 2020-03-26 | 郑州三华科技实业有限公司 | Volume color blending method, fixed-volume outpouring device and automatic color blending device for automobile refinishing paint |
| CN109772186A (en) * | 2019-01-23 | 2019-05-21 | 杭州以诺行汽车科技股份有限公司 | A kind of paint method and system for automotive lacquer |
| CN109655138A (en) * | 2019-01-23 | 2019-04-19 | 杭州以诺行汽车科技股份有限公司 | A kind of electronic-weighing method and system for automobile paint |
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| ES2333213T3 (en) * | 2002-01-31 | 2010-02-18 | Basf Se | MANUFACTURE AND OPERATION OF ORGANIC PIGMENTS IN SOLID SOLUTION. |
| JP2006010899A (en) * | 2004-06-24 | 2006-01-12 | Kyocera Mita Corp | Single-component magnetic toner |
| CN201537475U (en) * | 2009-03-27 | 2010-08-04 | 赵舜培 | Modified paint mixing device |
| CN104047065B (en) * | 2014-06-25 | 2016-04-20 | 常州欣战江特种纤维有限公司 | A kind of production method spinning front painted FDY for the production of automobile-used ceiling |
| EP3056264B1 (en) * | 2015-02-13 | 2023-05-10 | Betek Boya ve Kimya Sanayi A.S. | Tinting method and tinting machine |
| US10758878B2 (en) * | 2015-09-04 | 2020-09-01 | Patz Corporation | Agricultural feed mixer with volumetric responsive automatic transmission |
| CN107899508A (en) * | 2017-11-27 | 2018-04-13 | 共享装备股份有限公司 | The concocting method of metallic paint |
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