CN108940112B - Material taking mechanism of automobile repair paint color matching machine - Google Patents
Material taking mechanism of automobile repair paint color matching machine Download PDFInfo
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- CN108940112B CN108940112B CN201811078429.7A CN201811078429A CN108940112B CN 108940112 B CN108940112 B CN 108940112B CN 201811078429 A CN201811078429 A CN 201811078429A CN 108940112 B CN108940112 B CN 108940112B
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- conveying mechanism
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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
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71705—Feed mechanisms characterised by the means for feeding the components to the mixer using belts
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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
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2217—Volume of at least one component to be mixed
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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
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2218—Weight of at least one component to be mixed
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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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a material taking mechanism of an automobile repair paint color matching machine, which has a simple structure and low cost, and comprises a lifting driving mechanism (50) arranged on a machine body (1), wherein a bracket (51) which moves up and down and is used for placing a cup supporting plate (6) and a paint mixing cup is arranged on the lifting driving mechanism (50); a conveyor belt conveying mechanism is horizontally arranged on the machine body (1); the conveyor belt transmission mechanism comprises an intermediate conveyor belt transmission mechanism (52) positioned right below the bracket (51), and side conveyor belt transmission mechanisms (53) which are respectively positioned at the left side and the right side of the intermediate conveyor belt transmission mechanism (52) and have gaps (54) with the intermediate conveyor belt transmission mechanism (52); the bracket (51) comprises two cross bars corresponding to the positions of the two gaps (54) respectively and a connecting rod connecting the two cross bars, and when the upper surfaces of the two cross bars 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.
Description
Technical Field
The invention belongs to the field of automatic blending of automobile repair paint, and particularly relates to a material taking mechanism of an automobile repair paint color matching machine.
Background
The damaged part of the automobile painting needs to be sprayed with the automobile repair paint again. The color concentrates required for different automotive refinish paints vary. In order to meet the requirements of different automobiles, the types of color concentrates required by the color matching of automobile paints are numerous, about 50 to 90 types of color concentrates exist, and are far 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 automatic color matching of the automobile repair paint, the paint mixing cup needs to be accurately moved to all required front color master cylinders for receiving materials, so that an accurate and complex transmission system is required for the automatic color matching machine, and the cost is increased. Therefore, there is a need for an automotive refinish paint automatic tinting machine that occupies little space and is low in cost.
When the color matching is carried out before the paint spraying of the automobile repair paint, one of the common methods is to utilize a color card to compare with the color of the automobile, find the color card with the same color, find the color master batch proportion of the color card number and the weight formula of each color master batch from a color matching software database in a computer according to the color card number, manually weigh the color master batch of the required type according to the formula, mix, stir and mix the automobile repair paint (hereinafter, the automobile repair paint can be simply called the automobile paint) with the color consistent with the color card. The automobile repair paint prepared according to the color card has low manual efficiency and usually has certain deviation from the color of the automobile, the automobile repair paint needs to be further adjusted manually, the labor and the effort are wasted, the technical requirements on the color matching process are high, and the automobile repair paint with consistent color can be prepared by an experienced preparer.
In the prior art, a method for finding out a paint spraying formula when leaving a factory according to the model or paint code of an automobile or measuring the automobile surface paint by utilizing an optical instrument (a spectrophotometer) to obtain a paint matching formula is also provided, so that the formula obtaining method can be suitable for analyzing most of the automobile surface paint, is accurate, and reduces errors of the color of the automobile paint and the actual automobile paint obtained by obtaining the formula according to the model or paint code. However, even then, the previously counted data indicate that a significant proportion of automotive surface paint has color differences after one color match, or that further manual color matching corrections are required. Therefore, the color matching of the current automobile repair paint has high manual requirement, high dependency and low manual color matching efficiency, particularly, the color matching amount of a certain paint shop in one day is very large, can reach tens or hundreds, one color matching worker can not finish, and even the certain shop needs two or four color matching workers. Even so, due to the great labor intensity, the environment is poor (color is stuck everywhere, even on the body), the technology is improved and long accumulation is needed, and people are not willing to dry the work of color matching workers. On the other hand, recruiting to an excellent color fitter is very difficult, and payroll is low. However, the current color matching technology is necessary, and the paint matching benefit of a paint matching shop or a color matching shop with little color matching amount is just an auxiliary service (such as a 4S shop) but not the salary of a paint matching worker. Therefore, there is a device for automatically and accurately blending the color master batch amount of each color matching on the market, so that the purposes of improving efficiency, reducing the blending technical requirement and reducing the labor cost can be achieved.
In recent years, enterprises have developed automatic color matching machines for automobile refinish paint. But does not form a stable product for market. The existing mature and universal automobile paint color mixing methods in the world are all known to adopt a weight ratio mode, and the color master is manually poured out of a paint bucket to weigh, color and color. The color master batch is manually poured from the color master batch barrel with the slurry cover at the upper part through the slurry outlet on the slurry cover according to the weight requirement of the color master batch. The required color master weight is weighed on an electronic scale. The color master in each formulation is thus poured from the master cylinder and weighed to the desired weight. And stirring and mixing the color matching color master batch to complete the color matching of the paint with the required color. The slurry cover has the functions of stirring and manually controlling the pouring of the color master batch. The color matching formulas of manufacturers (such as New Ind, duPont, PPG and Basoff) for manufacturing the color matching color master batch of the automobile repair paint in the world are designed according to the weight ratio.
The advantages of using the weight ratio manual paint pouring and color mixing are as follows:
1, the color master batch with the required quantity is conveniently poured out from the color master batch barrel, and the pouring quantity is also conveniently controlled: whenever the required weight on the weighing scale is observed to be fast, the pouring speed of the color master is gradually slowed down by manual control, so that the color master is gradually close to the required pouring weight until the required color master weight is finally reached to stop pouring the color master. Other color matching color master batches finish pouring out and weighing the required weight according to the same method;
2, several color masters needing to be colored can be poured into a container to be directly stirred uniformly: for example, if three color concentrates are required for one color, each color concentrate has a weight of 1.1 g for the A color concentrate, 2.2 g for the B color concentrate, and 3.3 g for the C color concentrate, an empty bucket can be placed on the electronic scale and reset. The A color master was poured into the empty bucket until the electronic scale displayed 1.1 grams. Resetting the electronic scale, and pouring the B color master batch until the weight displayed by the electronic scale is 2.2 g; and 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 concentrates by using a stirring ruler to finish color matching and mixing.
Weight toning is the initial natural choice of toning history. In order to avoid that the ratio of the color matching color master batch can not be accurately known and the color master batch required quantity can not be accurately controlled by experience color matching, the most conveniently realized accurate color matching by a weight ratio method is generated on the basis of experience color matching.
The use of volume-scale color matching is also true in theory. However, the theoretically established volume ratio color matching method is difficult to realize in practice. The idea of volume ratio toning to obtain a color shade of the desired volume is that there are several methods: consider 1: the color master batch is manually poured into the measuring cup, and the amount of the poured color master batch is controlled by human eyes according to the volume scale mark position of the measuring cup. However, this has a problem that, due to the characteristics of the paint, the accuracy of the volume of the measuring cup for determining the position of the measuring scale of the measuring cup by the human eye cannot reach the required accuracy of 0.1 g by weight, and particularly, the measuring cup volume is large when a large amount of paint is mixed, the sectional area of the measuring cup is larger, the error of determining whether the measuring scale of the measuring cup reaches the specified position by the human eye is larger, and the color mixing accuracy requirement of 0.1 g cannot be met at all. Moreover, the inaccurate volume manual color matching method is more difficult and complicated in actual operation than the weight proportion color matching method, so that effective color matching and matching cannot be realized; consider 2: the specific gravity cup method is used: because of wall built-up residue of the color master and discontinuity of volume measurement, obtaining the required volume is also difficult to realize in practical application; consider 3: the manual injection tube volume metering injection method comprises the following steps: because the color masterbatch hanging belt at the injection tube head for extracting color masterbatch can cause precision error, the color masterbatch hanging belt is removed, the process is not easy and environment-friendly, and if the color masterbatch hanging belt is not cleaned, the color masterbatch can flow to the outlet of the needle tube head to affect the error assurance below 0.1 g. Similarly, the viscous color master is manually injected with very strong force, even a person with small force is not moved, the pipe diameter of the injection pipe is reduced, the injection force can be reduced, the single-time push-out precision is improved, but the color master with large quantity is accurately injected and is required to be pumped into a color master container for extracting the color master, the hanging color master at the injection pipe opening is removed after each extraction, the accumulated error is increased, at the moment, the error of 0.1 g is more difficult to control, the color matching is more complicated than the currently used weight ratio method, the color matching industry can certainly select the weight ratio method which is simple and easy to realize, and the volume ratio method which is difficult to ensure the precision is not selected for color matching.
The volumetric ratio is not considered by those skilled in the art to achieve color matching after the gravimetric color matching process has emerged. Since it was recognized from the past to the present that the personnel in the industry cannot substitute for the weight ratio color mixing and the color matching after the analysis of the above-mentioned influencing factors, it has become a technical prejudice to the mind of the personnel in the industry.
Disclosure of Invention
Automobile paint repair has been a color match by weight for over 100 years. Mainly because volume measurement is inaccurate, the pushed equipment cannot meet the requirement, and foreign first-class manufacturers try to solve the problem for a long time, so that it is generally considered that the automobile paint can only be measured by weight ratio. This is also well known in the art of automotive paint repair. For example, automobile paints Wang Minxin and Wang Lijun are known, and the color matching of the automobile repair push-pull finishing paint in 2005-7.6.3 of chemical industry publishers clearly indicates that the electronic balance is used for weighing the paint, so that the colored paint needs to be added in a plurality of batches and a small amount, the excessive use of materials is avoided, a small amount of paint is firstly removed for each time, and the color matching paint is completely matched, and the proportion is enlarged according to the requirement. It is known that this is common knowledge in the art, which creates a technical prejudice and the use of volumetric counterweights is not conceivable.
In order to solve the technical prejudice, the invention provides the material taking mechanism of the automobile repair paint color matching machine, which has the advantages of simple structure and low cost.
The object of the invention is achieved in the following way: the material taking mechanism of the automobile repair paint color matching machine comprises a lifting driving mechanism (50) arranged on a machine body (1), wherein a bracket (51) which moves up and down and is used for placing a cup supporting plate (6) and a paint mixing cup is arranged on the lifting driving mechanism (50); a conveyor belt conveying mechanism is horizontally arranged on the machine body (1); the conveyor belt transmission mechanism comprises an intermediate conveyor belt transmission mechanism (52) positioned right below the bracket (51), and side conveyor belt transmission mechanisms (53) which are respectively positioned at the left side and the right side of the intermediate conveyor belt transmission mechanism (52) and have gaps (54) with the intermediate conveyor belt transmission mechanism (52); the bracket (51) comprises two cross bars corresponding to the two gaps (54) and a connecting rod connecting the two cross bars, 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 bars 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 driving mechanism (50) and the conveyor belt conveying mechanism are electrically connected with the controller.
A bracket (51) is provided with a cup supporting plate (6) on which a paint mixing cup is arranged; when the upper surfaces of the two cross bars are lowered below the upper surface of the conveyor belt of the middle conveyor belt conveying mechanism (52), the lower surface of the cup supporting plate (6) is higher than the highest surface of the two cross bars and is positioned on the surface formed by the conveyor belt conveying mechanism.
The bracket (51) is of a quadrilateral structure consisting of two parallel cross bars and two connecting rods, and the height of the lower bottom surface of the connecting rod corresponding to the area of the middle conveyor belt conveying mechanism (52) is higher than that of the upper surface of the cross bars.
The side conveyor belt conveying mechanism (53) is provided with an in-place sensor (55) corresponding to the position of the slurry receiving position of the lower color master turntable (4) of the machine body (1); the intermediate conveyor belt conveying mechanism (52) is provided with an in-place sensor (55).
The lifting driving mechanism (50) is arranged at a position corresponding to the paste receiving position of the upper-layer color master turntable (4) of the machine body (1) and is provided with an in-place sensor (55).
The beneficial effects of the invention are as follows: the material taking mechanism is provided with the upper layer and the lower layer of a plurality of turntable structures and the corresponding conveying paint mixing cup, so that the problem that the arrangement occupation space of various color masters of the automobile repair paint is large is solved, and the material taking structure of the color master is simple in structure, low in cost and less in material taking time. The whole device utilizes the space to the greatest extent and reduces the cost.
Drawings
Fig. 1 is a general schematic diagram of a color mixer.
Fig. 2 is a layout diagram of a color master injection mechanism on a color master turntable.
FIG. 3 is a schematic view of a color master volumetric injection mechanism.
Fig. 4 is a view showing an internal structure of fig. 3.
Fig. 5 is a schematic diagram of a stock and paint mixing component.
Fig. 6 is a schematic diagram of the reverse side of fig. 5.
Fig. 7 is a take off mechanism.
Fig. 8 shows a cup holder 1.
FIG. 9 is a cup holder embodiment 2
The color master batch constant volume pouring-out mechanism comprises a machine body 1, a color master batch constant volume pouring-out mechanism 2, a color master batch mixing component 3, a color master batch rotary table 4, a material taking mechanism 5, a cup supporting plate 6, a drop receiving box 7, a color master batch barrel 20, a valve body 21, a volume metering pump 22, a slurry outlet nozzle 23, a valve body deflector rod 24, a pouring 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 conveying belt conveying mechanism 52, a side conveying belt conveying mechanism 53, a gap 54, a in-place inductor 55, a barrel cover 201, a stirring shaft 202, a breathing 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 case of stable specific gravity of the color master batch or the case of less demand of the color master batch, accurate color master batch taking can be realized by using a volume method. The method for color matching by volume ratio is as follows;
the volume color matching method of the automobile repair paint comprises the following steps:
(1) The method comprises the steps of detecting an automobile data identity card printed with color numbers on a repaired automobile body, detecting the color code of the automobile or comparing the color code with the adjacent color card code, and using a reader or a computer color matching system to find the weight formula of the repair paint; or detecting the surface of the complete position of the coating of the vehicle body to be repaired by utilizing a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) According to the weight formula of the repair paint and the measured specific gravity of the color master, converting the volume formula of the corresponding repair paint;
(3) Calculating the types and volumes of the required color concentrates according to the volume formula of the repair paint and the area to be repaired;
(4) The color master is obtained and mixed according to the required color master type and volume.
The method for measuring the specific gravity of the color master is to use the high-precision volume pump of the invention to pump out the color master with a preset volume, such as 30 milliliters. The actual color masterbatch specific gravity is obtained by weighing the materials by an electronic scale with the precision of +/-0.001 g or +/-0.01 g and the weight is in volume. Can be measured once, can be measured several times more, and is averaged. The method is suitable for color master with relatively stable density. At present, various color pastes are prepared according to weight proportion in the field of automobile repair paint color matching. This requires an additional weighing device such as an electronic scale. The automobile repair paint with the preset effect can be prepared by using the volume ratio to prepare various color pastes, and a weighing device is not needed, so that the structure is simple.
For the color master with unstable specific gravity and large variation, the use volume can cause inaccurate added color master quantity, thereby affecting paint mixing, especially when the required color master quantity is large. The following weight-volume mixing color mixing method can be adopted for precision;
the weight and volume mixed color mixing method of the automobile repair paint comprises the following steps:
(1) The method comprises the steps of detecting an automobile data identity card printed with color numbers on a repaired automobile body, and detecting the color code of the automobile or comparing the color code with the adjacent color card code; finding out the weight formula of the used repair paint by using a reader or a computer color matching system; or detecting the surface of the complete position of the coating of the vehicle body to be repaired by utilizing a spectrophotometer, and outputting the weight formula of the repair paint by calculation;
(2) According to the weight formula of the repair paint and the measured specific gravity of the color master, converting the volume formula of the corresponding repair paint;
(3) Calculating the types of the required color concentrates and the required volume of each color concentrate according to the volume formula of the repair paint and the area to be repaired; calculating the types of the required color concentrates and the required weight of each color concentrate according to the weight formula of the repair paint and the area to be repaired;
(4) Finding a color master barrel corresponding to one color master A according to the type of the color master, and taking one half V of the volume V of the color master A 1 Weighing M 1 The method comprises the steps of carrying out a first treatment on the surface of the Subtracting M from the required weight of the color master 1 The resulting weight M 2 According to step (2)The measured color master density is converted into volume V 2 Taking the volume V 2 The material taking of the color master A is completed;
(5) Finding the color master barrels corresponding to the residual color master according to the required color master types, and sequentially completing the material taking of other color masters according to the method in the step (4); the color master batch was mixed and stirred.
Wherein, one half V of the volume V required by the color masterbatch A 1 The criteria for (2) are: calculating V according to the specific gravity range of the color masterbatch A 1 To be less than the required weight M of the color master. The color master of a predetermined volume is pumped out by using a high-precision volume pump in a laboratory or the volume pump of the invention, and the color master is weighed by an electronic scale with the precision of +/-0.001 g or 0.01g, and the actual color master proportion is obtained by dividing the weight by the volume. The method comprises the steps of calculating the required volume, pouring color concentrates with different volumes twice, weighing the first large volume, calculating the rest required weight, and then converting the calculated weight into the volume for pouring. Thus, the volume of the second injection is smaller, and even if the specific gravity of the color master is larger, the absolute error amount is smaller because of the small volume of the second injection. This amount of error is within an acceptable error range with respect to the total required color burst amount.
As shown in fig. 1-7, the automatic color matching machine for the automobile repair paint comprises a machine body 1, a controller, at least two color master turntables 4 which are driven by a rotary driving mechanism to rotate and are arranged on the machine body 1, one color master turntable 4 is positioned on the upper layer of the machine body 1, and at least one color master turntable 4 is positioned on the lower layer of the machine body 1; the color master rotary table 4 is provided with a color master injection mechanism which comprises a slurry outlet nozzle 23 controlled by a valve; the slurry outlet nozzles 23 of each color master injection mechanism are arranged on the color master rotary table 4 in a circle, and each color master rotary table 4 is provided with a slurry receiving position; each pulp outlet nozzle 23 sequentially passes above the pulp receiving position by rotating the color master turntable 4; the machine body 1 is provided with a material taking mechanism 5 which enables the positions of the paint mixing cups to be changed between the paste receiving positions of the respective color master rotary tables 4.
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 a position on the machine body 1, which is lower than the machine body; the belt transmission mechanism includes a middle belt transmission mechanism 52 located directly below the carriage 51, and side belt transmission mechanisms 53 located on both sides of the middle belt transmission mechanism 52, respectively, with a gap 54 between them. The middle belt conveyor 52 and the side belt conveyor 53 are driven to rotate by a gear motor, respectively, to thereby drive the belt to rotate. The bracket 51 comprises two cross bars corresponding to the two gap positions respectively and a connecting rod connecting the two cross bars, 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 bars are lowered to be flush with the upper surface of the conveyor belt of the intermediate conveyor belt conveying mechanism 52, the connecting rod is not contacted with the conveyor belt conveying mechanism; the elevation drive mechanism 50 and the conveyor belt transport mechanism are electrically connected to a controller.
The bracket 51 is provided with a cup supporting plate 6 on which a paint mixing cup is arranged; when the upper surfaces of the two cross bars are lowered below the upper surface of the conveyor belt of the intermediate conveyor belt conveyor 52, the lower surface of the cup supporting plate 6 is higher than the uppermost surface of the two cross bars and is positioned on the surface constituted by the conveyor belt conveyor.
The connecting rods are located outside the conveyor belt conveyor mechanism at positions corresponding to the brackets 51 such that the connecting rods are located at positions on both sides or beyond the positions on both sides of the intermediate conveyor belt conveyor mechanism 52. When the cross bar descends into the gap 54, the connecting rods must not contact if they are located outside the conveyor belt drive, at which point there is no structure on the conveyor belt drive that impedes movement of the carriage; if the connecting rod is positioned at two sides of the conveying mechanism of the conveying belt, two sides refer to two sides parallel to the conveying direction; that is, the bracket 51 has a quadrangular structure composed of two cross bars and two connecting bars, and the height of the lower bottom surface of the region of the connecting bars corresponding to the intermediate conveyor belt conveying mechanism 52 is higher than the height of the upper surface of the cross bars. At this time, 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 the conveying. The lifting drive mechanism 50 may be a screw nut mechanism; comprising a screw rod arranged on the machine body 1 and a nut connecting bracket 51. The cup supporting plate 6 is provided with a groove which is adjustable in height and is specially used for placing a paint mixing cup.
The concrete material taking mode is that the upper layer slurry taking position is moved to the lower layer slurry taking position: the lifting drive mechanism 50 drives the brackets 51 to move down until the cross bars are positioned in the gaps, the upper surfaces of the cross bars are lower than the upper surfaces of the conveyor belts in the conveyor belt conveying mechanism 52, and the cup supporting plates 6 positioned on the two cross bars fall onto the upper surfaces of the conveyor belt conveying mechanism 52 in the middle. The middle conveyor belt conveying mechanism 52 and the side edge conveyor belt conveying mechanism 53 corresponding to the lower layer paste taking place rotate to convey the cup supporting plate 6 and the paint mixing cup to the corresponding paste taking place. The steps are reversed when going back from the lower layer to the upper layer.
The side conveyor belt conveying mechanism 53 is provided with an in-place sensor 55 corresponding to the position of the slurry receiving position of the color master turntable at the lower layer of the machine body. An in-place sensor 55 is provided on the intermediate belt conveyor 52; the lifting driving mechanism 50 is provided with an in-place sensor 55 corresponding to the position of the slurry receiving position of the upper layer color master turntable 4 of the machine body 1. The in-place sensor senses and sends out a signal, 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 volume ratio color matching and also can be used for weight-volume mixed color matching. By adopting volume ratio color matching, the color master injection mechanism on the color master turntable 4 can use a fixed volume injection mechanism. And the weight and volume mixing color matching is adopted, the color master injection mechanism on the color master turntable 4 is required to use the fixed volume injection mechanism, the paint mixing cup is required to be placed on the electronic scale, and the electronic scale moves along with the cup supporting plate 6.
When the color master injection mechanism is a color master fixed-volume injection mechanism 2, the color master injection mechanism comprises a color master barrel 20, and the color master barrel 20 is connected with a volume metering pump 22 driven by a driving mechanism to inject fixed volume through a valve body 21; the valve body 21 is provided with a slurry outlet nozzle 23. The valve body 21 has on-off and commutation functions. The volumetric pump 22 may be a volumetric pump driven by a stepper motor, or a servo motor, or a direct motor, such as a piston pump or a plunger pump.
The valve body 21 of the color master volumetric injection mechanism 2 is provided with a valve body deflector rod 24, 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 drives a valve body deflector rod 24 to rotate so as to enable the injection channel 25 to be communicated with the slurry outlet nozzle 23 or be closed. A lever is provided on the valve motor 33 and rotation of the lever rotates the valve body lever 24.
The volumetric pump 22 is a piston pump; a second linear driving mechanism 34 is arranged above the valve motor 33 on the material receiving and paint regulating component 3, and a rod head baffle 340 which moves up and down is arranged on the second linear driving mechanism 34 to lift or press down the piston rod 26 of the piston pump. The second linear driving mechanism 34 may be a screw-nut mechanism, a screw 341 driven by a second servo motor to rotate is arranged on the material receiving and paint mixing component 3, and a nut 342 is arranged on the screw, and the nut 342 is connected with the baffle 340 of the pull rod head. The pull rod head baffle comprises a groove-shaped structure, and the piston head of the piston rod leaves or enters a groove positioned in the groove-shaped structure when rotating along with the coloring mother barrel. The nut 342 moves up and down to move the piston rod up and down to suck and drive the color master from the color master barrel.
The drip receiving box 7 which is driven by the driving mechanism to move is further arranged below the valve motor 33 on the material receiving and paint mixing component 3, and the drip receiving box 7 comprises a drip receiving station positioned right above the paint mixing cup and an avoidance station avoiding the position of the paint mixing cup. The third linear motion mechanism, such as a motor driving a gear, is arranged on the material receiving and paint mixing part 3, the gear rotates to drive a rack to move, and the drop receiving box 7 and the rack are connected to move together. Or a cylinder is arranged on the movable frame, and a piston rod of the cylinder drives the drip receiving box 7 to move together. After the pouring channel 25 is closed, i.e. after the discharge nozzle 23 is no longer discharging, there may be residual color paste. After the drip receiving box 7 is arranged and the pouring channel 25 is closed, the drip receiving box 7 moves to the position right below the paste outlet nozzle 23 to prevent residual color paste from dripping into a paint mixing cup, so that the accuracy is affected.
A barrel cover 201 is arranged on the color master barrel 20 in a sealing way, and a breather valve 205 is arranged on the barrel cover; the color master barrel 20 is internally provided with a stirring shaft 202 which is driven by a driving mechanism to rotate and one end of which extends into the color master barrel, and the stirring shaft 202 is provided with a spiral stirring blade 207. A corrosion-resistant sealing ring is arranged between the color master barrel 20 and the barrel cover 201, and the sealing ring is made of a corrosion-resistant material and can adapt to the corrosiveness of the color master of the automobile paint. Spiral stirring blade 207 is a foam cutting blade, and can be used for beating color master batch on the wall of a barrel in the stirring process, and beating or breaking bubbles, so that volume measurement is facilitated. Because the more bubbles the less accurate the volumetric metering. This is in a different place than the stirring blade used for latex paints. The stirring driving mode of the stirring shaft 202 refers to the stirring driving mode of emulsion paint with a turntable structure, which is the prior art and will not be 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 volumetric pump 22 is a size combination pump. The structure of the reflux valve and the size combination pump can be as in patent CN201410792479.7 or CN201711400600.7 or CN 201310045508.9. The reflux valve is provided with a reflux channel, when the valve body 21 is in a closed state, namely color paste is not poured out, the reflux channel is communicated, namely the valve body 21 is communicated with the color master barrel 20, and the automobile repair paint can reflux into the color master barrel 20. Because the automotive refinish paint is relatively viscous, the pouring channel 25 is easily dried and blocked if there is no return channel, making paint dispensing difficult.
The material receiving and paint mixing component 3 is provided with a code scanning module, and the color masterbatch fixed-volume injection mechanism 2 is provided with a two-dimensional code. The code scanning module is a scanning gun, and the two-dimensional code is used for recording information such as color numbers of the color master barrel. The first material taking is required to be scanned and confirmed by the fixed-volume injection mechanism 2 of each color masterbatch. After replacing the color master barrel 20, the replaced color master barrel 20 also needs to be scanned again.
Two color master turntables are arranged on the lower layer of the machine body, and three color master turntables are arranged in a delta shape. This configuration, in combination with the take-off mechanism 5 of the present invention, allows maximum space utilization. The lower color master 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 way; the outer surface of the supporting plate of the machine body 1 is provided with a handle. The lower color master turntable can be pulled out, and is convenient to install and detach.
Fig. 8-9 illustrate two types of 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 cups is arranged on the electronic scale. The structure of fig. 8 is adapted to the method of color matching with volume ratio. The structure of fig. 9 can be used in a gravimetric volumetric color mixing method.
The specific implementation method comprises the following steps: for the volume color matching method: firstly, the system detects the weight ratio of the automobile repair paint, the volume ratio required by the automobile repair paint is converted according to the volume color matching method of the automobile repair paint, and the position of the corresponding color master batch fixed volume injection mechanism 2 is found. The material taking mechanism 5 moves the cup supporting plate 6 and the paint mixing cup to the position of the paste taking position corresponding to the color master rotary table 4, and the color master rotary table 4 rotates to stop the paste outlet 23 of the required color master fixed-volume pouring mechanism 2 passing over the paint mixing cup. The second linear driving mechanism 34 is started, the screw 341 rotates to drive the nut 342 to move upwards, the 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 preset displacement, the valve motor 33 is started, the injection channel 25 of the valve body 21 is communicated with the paste outlet nozzle 23, the piston rod 26 continues to descend, and a preset amount of color paste flows out from the paste outlet nozzle 23 to the paint mixing cup. The valve motor 33 is turned off and the drop box 7 is moved below the discharge nozzle 23. The color master turntable 4 rotates to the position that the next slurry outlet nozzle 23 of the color master reaches the slurry outlet position, and the drip receiving box 7 moves away to take materials. After the color master on the color master rotary table 4 is taken, the color master is moved to the slurry taking position of the next color master rotary table 4 through the material taking mechanism 5 to take materials. After all of the paint is removed, the paint mixing cup is moved to a predetermined position, typically on a conveyor belt of an intermediate conveyor belt conveyor mechanism, awaiting removal.
The method of weight and volume mixing color matching is adopted: the difference from the above-mentioned way is that: when a predetermined amount of color master batch is taken, a large half of the color master batch is required to be taken, the weight required for the rest is calculated, the weight is converted into the volume required for the rest, and the color master batch is punched out.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Claims (3)
1. The utility model provides a car repair paint mixing of colors machine extracting mechanism which characterized in that: comprises a lifting driving mechanism (50) arranged on a machine body (1), wherein a bracket (51) which moves up and down and is used for placing a cup supporting plate (6) and a paint mixing cup is arranged on the lifting driving mechanism (50); a conveyor belt conveying mechanism is horizontally arranged on the machine body (1); the conveyor belt transmission mechanism comprises an intermediate conveyor belt transmission mechanism (52) positioned right below the bracket (51), and side conveyor belt transmission mechanisms (53) which are respectively positioned at the left side and the right side of the intermediate conveyor belt transmission mechanism (52) and have gaps (54) with the intermediate conveyor belt transmission mechanism (52); the bracket (51) comprises two cross bars corresponding to the two gaps (54) and a connecting rod connecting the two cross bars, 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 bars 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 driving mechanism (50) and the conveyor belt conveying mechanism are electrically connected with 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 cross bars descend below the upper surface of the conveyor belt of the middle conveyor belt conveying mechanism (52), the lower surface of the cup supporting plate (6) is higher than the highest surface of the two cross bars and is positioned on the surface formed by the conveyor belt conveying mechanism;
the bracket (51) is of a quadrilateral structure consisting of two parallel cross bars and two connecting rods, and the height of the lower bottom surface of the connecting rod corresponding to the area of the middle conveyor belt conveying mechanism (52) is higher than that of the upper surface of the cross bars.
2. The automotive refinishing paint color mixer take-off mechanism of claim 1, wherein: the side conveyor belt conveying mechanism (53) is provided with an in-place sensor (55) corresponding to the position of the slurry receiving position of the lower color master turntable (4) of the machine body (1); the intermediate conveyor belt conveying mechanism (52) is provided with an in-place sensor (55).
3. The automotive refinishing paint color mixer take-off mechanism of claim 2, wherein: the lifting driving mechanism (50) is arranged at a position corresponding to the slurry receiving position of the upper-layer color master turntable (4) of the machine body (1) and is provided with an in-place sensor (55).
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078429.7A CN108940112B (en) | 2018-09-17 | 2018-09-17 | Material taking mechanism of automobile repair paint color matching machine |
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811078429.7A CN108940112B (en) | 2018-09-17 | 2018-09-17 | Material taking mechanism of automobile repair paint color matching machine |
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| CN108940112A CN108940112A (en) | 2018-12-07 |
| CN108940112B true CN108940112B (en) | 2023-09-12 |
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| CN201811078429.7A Active CN108940112B (en) | 2018-09-17 | 2018-09-17 | Material taking mechanism of automobile repair paint color matching machine |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| JP7387748B2 (en) * | 2019-01-31 | 2023-11-28 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method and apparatus for finding and adapting effect color combinations incorporating visual comparison of texture quality |
| CN110171245B (en) * | 2019-07-15 | 2021-01-22 | 吕华斌 | Automatic blending device for special pigment for art painting and using method thereof |
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