CN209333581U - Car refinishing paint mechanical colorant dispenser - Google Patents

Abstract

The utility model provides a kind of structure simple, at low cost, volume toning car refinishing paint mechanical colorant dispenser, including body (1) and controller, mechanism drive is driven in rotation including at least two and is rotatably arranged on the color masterbatch turntable (4) on body (1), one color masterbatch turntable (4) is located at body upper layer, at least one color masterbatch turntable (4) is located at body lower layer；Color masterbatch is set on color masterbatch turntable (4) and outpours mechanism, it includes the slurry outlet nozzle (23) controlled by valve that color masterbatch, which outpours mechanism,；The slurry outlet nozzle (23) that each color masterbatch outpours mechanism is lined up a circle and is arranged on color masterbatch turntable (4), and each color masterbatch turntable (4) is arranged one and connects at slurry；Color masterbatch turntable (4) rotation makes each slurry outlet nozzle (23) successively by connecing top at slurry；The material fetching mechanism (5) that setting converts paint cup position between respective color masterbatch turntable (4) connects slurry on body (1).

Description

Auto refinish paint automatic coloring machine

technical field

The utility model belongs to the field of automatic adjustment of automobile refinish paint, in particular to an automatic toning machine for automobile refinish paint.

Background technique

Damaged car paint needs to be re-applied with car refinish paint. The masterbatch required for different automotive refinish paints varies. In order to meet the needs of different cars, there are many kinds of masterbatches required for car paint color matching, about 50 to 90 kinds, far more than the kinds of latex paints. There are so many color master cylinders on the automatic coloring machine for auto refinish paint, which requires a lot of space. For any kind of automatic color matching of automotive refinish paint, it is necessary to accurately move the paint cup to all the required color master cylinders before receiving the material, which requires the automatic color matching machine to have an accurate and complex transmission system, thereby increasing the cost. Therefore, there is a need for an automatic tinting machine for automotive refinish paint that occupies a small space and has a low cost.

One of the commonly used methods is to use the color card to compare the color of the car to find the color card of the same color, and find the color masterbatch ratio of the color card number from the color matching software database in the computer according to the color card number. And the weight formula of each color masterbatch, manually weigh the required types of color masterbatch according to the formula, mix and stir to prepare the car refinish paint with the same color as the color card (hereinafter referred to as car paint). The labor efficiency is low, and the car refinish paint prepared according to the color card usually has a certain deviation from the color of the car. It needs to be further adjusted manually, which is laborious and has high technical requirements for the colorist. It requires experienced deployment workers. Formulate car paints with a consistent color.

In the prior art, there is also a method of finding the formula of the paint sprayed at the factory according to the model or paint code of the car, or measuring the surface paint of the car with an optical instrument (spectrophotometer), and obtaining the formula of the paint, so that the formula method can be suitable for use. The analysis of most car surface paints is more accurate and reduces the error between the car paint and the actual car paint color obtained from the formula according to the model or paint code. But even so, the previous statistics show that a considerable proportion of the car surface paint still has color difference after one color matching, and further manual color matching correction is needed. Therefore, the color matching of today's automotive refinishing paints has high requirements and dependence on manual work, while the efficiency of manual color matching is low. Colorists can't do it, and some stores even need two or four colorists. Even so, people are still reluctant to do color matching work due to high labor intensity, poor environment (colors sticking everywhere, even on the body), and long-term accumulation of technology improvement. On the other hand, it is also very difficult to recruit an excellent color matching worker, and no one will do it if the salary is low. Today's color matching technicians are necessary, and for a paint shop with a small amount of color matching or color matching is only an auxiliary business (such as a 4S shop), the paint matching income cannot match the salary of a paint matching worker. Therefore, if there is a device on the market that can automatically and accurately allocate the amount of each color masterbatch, it can achieve the purpose of improving efficiency, reducing technical requirements for deployment, and reducing labor costs.

In fact, in recent years, some companies have developed automatic coloring machines for auto refinish paints. But it has not been able to form a stable product into the market. We all know that the existing mature and universal car paint tinting methods in the world are all based on weight ratio, and manually pour the color mother from the paint bucket to weigh the color matching and tinting. That is, according to the weight requirements of the required color masterbatch, the masterbatch is manually poured from the masterbatch barrel with the slurry cover on the upper part through the slurry outlet on the slurry cover. Weigh the desired color masterbatch on an electronic scale. The color masterbatches in each recipe are thus poured from the masterbatch bucket and weighed to the desired weight. Stir and mix the color masterbatch to complete the color matching of the desired color paint. The slurry cover has a stirring function and manual control of the color masterbatch pouring function. At present, the world's manufacturers of automotive refinish tinting masterbatches (such as: Xinjin, DuPont, PPG, BASF) have their tinting formulas designed according to weight ratios.

There are two advantages to using a weight-to-weight ratio manual pour paint toning:

1. It is convenient to pour out the required amount of color masterbatch from the color masterbatch bucket, and it is also convenient to control the pouring amount: just observe that when the required weight on the weighing scale is approaching, the manual control gradually slows down the pouring speed of the color masterbatch, so that the It slowly approaches the desired pouring weight, and stops the pouring of the color masterbatch until the desired masterbatch weight is finally reached. Other color masterbatches are also poured out and weighed according to the same method;

2. Several color masterbatches that need to be matched can be poured into a container and mixed directly. For example, if three color masterbatches are required for matching one color, the weight of each color masterbatch is 1.1 grams for A masterbatch and 1.1 grams for B masterbatch. 2.2 grams, C color masterbatch needs 3.3 grams, you can put an empty bucket on the electronic scale, and reset the weight. Pour the A color masterbatch into the empty bucket until the electronic scale shows 1.1 grams. Clear the electronic scale, and then pour the B color masterbatch until the electronic scale shows that the weight is 2.2 grams; then reset the electronic scale, pour in the C color paste, until the electronic scale shows 3.3 grams. Finally, mix the three color masterbatches evenly with a mixing ruler to complete the color matching.

Using weight toning was the first natural choice in the history of coloring. In order to avoid that the proportion of color masterbatch cannot be accurately known and the required amount of masterbatch cannot be accurately controlled by experience color matching, the most convenient way to achieve accurate color matching by weight ratio method is produced on the basis of experience color matching.

In theory, the use of volume ratio color matching is also established. However, the volume ratio color matching method established in theory is difficult to realize in practice. There are several ways to get the required volume of color masterbatch by volume ratio color matching method: Imagination 1: manually pour the masterbatch into the measuring cup, and observe and control the poured masterbatch according to the position of the volume scale of the measuring cup. quantity. However, there is a problem. Due to the characteristics of the color paint, the position of the measuring cup scale by the human eye to determine the volume accuracy of the color masterbatch cannot reach the required accuracy of 0.1 gram weight, especially the volume of the measuring cup when a large number of toning paints are used. If it is larger, the cross-sectional area of the measuring cup is larger, and the error of the human eye to determine whether the color masterbatch reaches the specified measuring position is larger, and the color matching accuracy requirement of 0.1 gram cannot be met at all. Moreover, the inaccurate volume manual color matching method is much more difficult and cumbersome in actual operation than the weight ratio color matching method, so that effective color matching cannot be achieved; Imagination 2: Use the specific gravity cup method: because the color masterbatch Due to the discontinuity of wall-hanging residue and volume measurement, it is also difficult to obtain the required volume in practical applications; Imagination 3: Manual injection tube volume measurement and injection method: Due to the color masterbatch hanging tape at the head of the injection tube that extracts the color masterbatch, It will cause precision errors, and it is time-consuming and not environmentally friendly to remove the color masterbatch. Similarly, it is very hard to manually inject viscous color masterbatch, and people with small strength can't even push it. Although reducing the diameter of the injection tube can reduce the injection force and improve the single injection accuracy, it can accurately inject a large amount of color masterbatch. It also needs to be pumped into the color masterbatch container many times to extract the color masterbatch, and the hanging tape color masterbatch at the injection nozzle must be removed for each extraction, and the increase of the number of times will increase the cumulative error. At this time, the error of 0.1 gram is more difficult Control, and this is much more complicated than the currently used weight ratio method for color matching. Of course, the color matching industry will choose the simple and easy-to-implement weight ratio method for color matching, rather than the volume ratio method that is time-consuming and difficult to ensure accuracy. color.

Technicians in this industry did not consider using volume ratio to achieve color matching after the weight ratio color matching method appeared. Because from the past to the present, after analyzing the above-mentioned influencing factors, the personnel in the industry determined that it cannot replace the weight ratio and color matching.

SUMMARY OF THE INVENTION

Car paint refinishing has a history of more than 100 years, and it is all color matching by weight. The main reason is that the volume measurement is inaccurate, the equipment after the launch cannot meet the demand, and the first-class foreign manufacturers have tried to solve this problem for a long time. It is generally believed that automotive paint can only be measured by weight ratio. This is also described in the known art for automotive paint refinishing. For example, automotive coatings, written by Wang Minxin and Wang Lijun, Chemical Industry Press, 2005-7.6.3 In the color deployment of automobile repair push-pull topcoats, it is clearly pointed out that the use of electronic balances is used to weigh the coatings, and the colored coatings should be added in small batches and avoid using If there is too much material, go to a small amount of paint configuration each time, wait until the paint is completely matched, and then expand the ratio as needed. It can be seen that this is common knowledge in the art, which has caused people to form a technical prejudice, and cannot think of using volumetric weights.

In order to solve the technical prejudice, the purpose of the present invention is to provide an automatic toning machine for auto refinish paint with simple structure, low cost and volume toning.

The purpose of the utility model is achieved in the following manner: an automatic toning machine for auto refinishing paint, including a body (1) and a controller, including at least two color masterbatches driven by a rotary drive mechanism and rotated and arranged on the body (1) Turntable (4), one color masterbatch turntable (4) is located on the upper layer of the machine body, and at least one color masterbatch turntable (4) is located on the lower layer of the machine body; the color masterbatch turntable (4) is provided with a color masterbatch injection mechanism, and the color masterbatch injection mechanism includes a valve. Controlled pulp nozzles (23); pulp nozzles (23) of each color masterbatch injection mechanism are arranged in a circle on the color masterbatch turntable (4), and each color masterbatch turntable (4) is provided with a pulp receiving place ; The color master turntable (4) rotates so that each pulp nozzle (23) passes over the pulp receiving place in turn; the body (1) is provided with a switch that enables the position of the paint mixing cup to switch between the respective color master turntables (4) where the pulp is connected. Reclaiming mechanism (5).

The reclaiming mechanism (5) includes a lift drive mechanism (50) arranged on the body (1), and a bracket for placing the cup holder plate (6) and the paint mixing cup is arranged on the lift drive mechanism (50) to move up and down (51); a conveyor belt transmission mechanism is arranged horizontally on the body (1); the conveyor belt transmission mechanism includes an intermediate conveyor belt transmission mechanism (52) located directly below the bracket (51) and respectively located on the left and right sides of the intermediate conveyor belt transmission mechanism (52). A side conveyor belt transmission mechanism (53) with a gap (54) existing between the conveyor belt transmission mechanisms (52); Connecting rod, the connecting rod is located outside the conveyor belt conveying mechanism at the corresponding position of the bracket (51), and when the upper surfaces of the two transverse rods are lowered to be flush with the upper surface of the conveyor belt of the intermediate conveyor belt conveying mechanism (52), the connecting rod and the conveyor belt conveying mechanism No contact; the lift driving mechanism (50) and the conveyor belt conveying mechanism are electrically connected to the controller.

The bracket (51) is provided with a cup holder plate (6) on which the 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 conveying mechanism (52), the cup holder plate (6) ) The lower surface is higher than the highest surface of the two cross bars and is located on the surface formed by the conveyor belt conveying mechanism.

An in-position sensor (55) is provided on the side conveyor belt transmission mechanism (53) corresponding to the position where the color master turntable (4) of the lower layer of the machine body is connected to the pulp; an in-position sensor (55) is provided on the intermediate conveyor belt transmission mechanism (52); An in-position sensor (55) is arranged on the mechanism (50) corresponding to the position of the paste connection position of the upper-layer color master turntable (4) of the machine body.

The color masterbatch injection mechanism is a color masterbatch constant volume injection mechanism (2), including a color masterbatch barrel (20), and the color masterbatch barrel (20) is connected through a valve body (21) to a volume metering pump driven by a driving mechanism to inject a fixed volume. (22); a slurry nozzle (23) is arranged on the valve body (21).

The valve body (21) of the color masterbatch constant volume injection mechanism (2) is provided with a valve body lever (24), and an injection channel (25) is provided in the valve body (21); The paint-receiving part (3) above the slurry is provided with a toggle valve body lever (24) on the paint-receiving part (3) to make it rotate so that the injection channel (25) is communicated with the slurry nozzle (23). or closed valve motor (33); the volume metering pump (22) is a piston pump; a second linear drive mechanism (34) is arranged above the valve motor (33) on the material receiving and painting part (3), and the second linear drive The mechanism (34) is provided with a tie rod head baffle (340) that moves up and down to lift or push down the piston rod (26) of the piston pump.

A drip receiving box (7) driven and moved by a driving mechanism is arranged below the valve motor (33) on the material and paint mixing component (3), and the drip receiving box (7) includes a drip receiving station located directly above the paint mixing cup and an avoidance Open the avoidance station at the paint mixing cup position.

The color masterbatch barrel (20) is sealed with a barrel cover (201), and a breathing valve (205) is arranged on the barrel cover; the color masterbatch barrel (20) is provided with a stirring shaft (202) which is driven to rotate by a driving mechanism and whose one end extends into the color masterbatch barrel ), a spiral stirring blade is arranged on the stirring shaft (202); the valve body (21) is a return valve, and the volume metering pump (22) is a combination pump.

A code scanning module is arranged on the receiving and painting part (3), and a two-dimensional code is arranged on the color masterbatch constant volume injection mechanism (2).

Two color master turntables (4) are arranged on the lower layer of the machine body (1), and three color master turntables (4) are arranged in the form of characters.

The beneficial effect of the utility model is that: the upper and lower two-layer multiple turntable structures are arranged and the corresponding reclaiming mechanism for conveying the paint mixing cup is arranged, which not only solves the problem that the arrangement of various color masterbatches of automobile refinishing paint occupies a large amount of space, but also takes The color masterbatch has the advantages of simple structure, low cost and less time required for reclaiming. The entire installation maximizes the use of space and reduces costs.

Description of drawings

Figure 1 is an overall schematic diagram of the toning machine.

Figure 2 shows the layout of the color masterbatch dispensing mechanism on the masterbatch turntable.

Figure 3 is a schematic diagram of the color masterbatch volume injection mechanism.

FIG. 4 is an internal structure diagram of FIG. 3 .

Figure 5 is a schematic diagram of the parts for receiving and adjusting paint.

FIG. 6 is a schematic view of the reverse side of FIG. 5 .

Figure 7 shows the reclaiming mechanism.

Figure 8 shows the implementation of the cup holder 1.

Fig. 9 is the embodiment 2 of the cup plate

Among them, 1 is the machine body, 2 is the color masterbatch volume injection mechanism, 3 is the paint-receiving part, 4 is the color masterbatch turntable, 5 is the reclaiming mechanism, 6 is the cup holder, 7 is the drip box, and 20 is the color Mother barrel, 21 is the valve body, 22 is the volume metering pump, 23 is the slurry nozzle, 24 is the valve body lever, 25 is the injection channel, 26 is the piston rod, 33 is the valve motor, and 34 is the second linear drive mechanism , 50 is a lift drive mechanism, 51 is a bracket, 52 is a middle conveyor belt transmission mechanism, 53 is a side conveyor belt transmission mechanism, 54 is a gap, 55 is a position sensor, 201 is a barrel cover, 202 is a stirring shaft, and 205 is breathing Valve, 207 is a spiral stirring blade, 340 is a tie rod head baffle, 341 is a lead screw, and 342 is a nut.

Detailed ways

For the case where the specific gravity of the color masterbatch is stable or the demand for the color masterbatch is relatively small, the volume method can be used to achieve accurate color masterbatch selection. The method of using volume ratio color matching is as follows;

The volume color matching method of automotive refinish paint includes the following steps:

(1) Find out the car information ID card with the color number on the body to be repaired, find out the color code of the car or compare the color card code that is close to it, and use the reader or computer color matching system to find out the weight formula of the repair paint used ; Or use a spectrophotometer to detect the surface of the complete body coating to be repaired, and output the repair paint weight formula by calculating;

(2) According to the weight formula of the repair paint and the measured specific gravity of the color masterbatch, the corresponding volume formula of the repair paint is converted;

(3) Calculate the type and volume of the color masterbatch required according to the volume formula of the repair paint and the area to be repaired;

(4) Obtain and mix the color masterbatch according to the required color masterbatch type and volume.

The method for measuring the specific gravity of the color masterbatch is to use the high-precision volume pump of the utility model to pump out a predetermined volume of color masterbatch, such as 30 ml. Weigh with an electronic scale with an accuracy of ±0.001g or ±0.01g, and the weight is in the volume to obtain the actual specific gravity of the color masterbatch. You can test it once, or test it several times, and take the average value. This method is suitable for color masterbatches with relatively stable density. At present, in the field of car refinish color matching, various color pastes are prepared according to the weight proportion. This method requires additional weighing devices such as electronic scales. The vehicle refinishing paint that uses the volume ratio to prepare various color pastes to achieve the predetermined effect does not require a weighing device and has a simple structure.

For the color masterbatch whose specific gravity is unstable and the change is relatively large, the use volume will cause the added color masterbatch to be inaccurate, which will affect the paint mixing, especially when a large amount of color masterbatch is required. In order to be accurate, the following weight-volume mixing color matching method can be used;

The weight and volume mixing and tinting method of automotive refinish paint includes the following steps:

(1) Find out the car information ID card with the color number on the body to be repaired, find out the color code of the car or compare the color card code close to it; use the reader or computer color matching system to find out the weight formula of the repair paint used ; Or use a spectrophotometer to detect the surface of the complete body coating to be repaired, and output the repair paint weight formula by calculating;

(2) According to the weight formula of the repair paint and the measured specific gravity of the color masterbatch, the corresponding volume formula of the repair paint is converted;

(3) Calculate the type of color masterbatch and the required volume of each color masterbatch according to the volume formula of the repair paint and the area to be repaired; calculate the type of masterbatch required and each color according to the weight formula of the repair paint and the area to be repaired required weight of the mother;

(4) Find the color masterbatch corresponding to one of the color masterbatches A according to the required color masterbatch types, take more than half V ₁ of the required volume V of the color masterbatch A, and weigh M ₁ ; subtract the required weight M of the color masterbatch M The weight M ₂ obtained by M ₁ converts the volume V ₂ according to the specific gravity of the color masterbatch measured in step (2), takes the color masterbatch A whose volume is V ₂ , and completes the reclaiming of the color masterbatch A;

(5) Find the color masterbatches corresponding to the remaining color masterbatches in turn according to the required color masterbatch types, and complete the reclaiming of other color masterbatches in turn according to the method in step (4); mix and stir the obtained color masterbatches.

Among them, the standard for more than half V ₁ of the volume V required by the color masterbatch A is: according to the specific gravity range of the color masterbatch A, the maximum mass of V ₁ is calculated to make it less than the required weight M of the color masterbatch. Use a high-precision volume pump in the laboratory or the volume pump of the present invention to print out a predetermined volume of color masterbatch, weigh with an electronic scale with an accuracy of ±0.001g or 0.01g, and divide the weight by the volume to obtain the actual color masterbatch specific gravity. This method first calculates the required volume, and injects different volumes of color masterbatch in two times. The first large volume, after weighing, calculates the remaining required weight, and then converts it into volume and injects it. In this way, the volume of the second injection is relatively small, even if the specific gravity of the color masterbatch is toggled relatively large, because the second volume is small, the absolute error is relatively small. This amount of error is within an acceptable error range relative to the entire required amount of color masterbatch.

As shown in Figures 1-7, the automatic toning machine for automotive refinish paint includes a body 1 and a controller, and also includes at least two color master turntables 4 that are driven by a rotary drive mechanism to rotate and set on the body 1, and a color master turntable. 4 is located on the upper layer of the machine body 1, and at least one color masterbatch turntable 4 is located on the lower layer of the body 1; the color masterbatch turntable 4 is provided with a color masterbatch injection mechanism, and the color masterbatch injection mechanism includes a slurry outlet 23 controlled by a valve; The pulp nozzles 23 of the mechanism are arranged in a circle on the color master turntable 4, and each color master turntable 4 is provided with a pulp receiving place; 1 is provided with a reclaiming mechanism 5 that enables the position of the paint mixing cup to be switched between the places where the respective color master turntables 4 receive the slurry.

The reclaiming mechanism 5 includes a lift drive mechanism 50 arranged on the body 1, and a bracket 51 for placing the cup holder plate 6 and the paint mixing cup is arranged on the lift drive mechanism 50; the upper and lower position of the body 1 is horizontal A conveyor belt transmission mechanism is provided; the conveyor belt transmission mechanism includes an intermediate conveyor belt conveyor mechanism 52 located directly below the bracket 51 and a side conveyor belt conveyor mechanism 53 located on the left and right sides of the intermediate conveyor belt conveyor mechanism 52 and with a gap 54 between the intermediate conveyor belt conveyor mechanism. The intermediate conveyor belt conveyor mechanism 52 and the side conveyor belt conveyor mechanism 53 are respectively driven by the deceleration motor to drive the pulleys to rotate, thereby driving the conveyor belts to rotate. The bracket 51 includes two horizontal bars corresponding to the two gap positions and a connecting bar connecting the two horizontal bars. The connecting bars are located outside the conveyor belt conveying mechanism at the corresponding positions of the bracket 51, and the upper surfaces of the two horizontal bars descend to the middle. When the upper surface of the conveyor belt of the conveyor belt conveyor mechanism 52 is flush, the connecting rod does not contact the conveyor belt conveyor mechanism; the elevating drive mechanism 50 and the conveyor belt conveyor mechanism are electrically connected to the controller.

The bracket 51 is provided with a cup holder 6 on which the paint mixing cup is arranged; when the upper surfaces of the two horizontal bars are lowered below the upper surface of the conveyor belt of the intermediate conveyor belt conveying mechanism 52, the lower surface of the cup holder 6 is higher than the two horizontal bars. The bar is the highest surface and is located on the surface formed by the conveyor belt conveyor.

The connecting rods are located outside the conveyor belt conveying mechanism at the corresponding positions of the brackets 51 , so that the connecting rods are located on both sides of the intermediate conveyor belt conveying mechanism 52 or at positions other than the two sides. When the cross bar falls inside the gap 54, if the connecting rod is located outside the conveyor belt transmission mechanism, it must not be in contact. At this time, there is no structure that hinders the movement of the carriage on the conveyor belt transmission mechanism; if the connecting rod is located on both sides of the conveyor belt conveyor mechanism , the two sides here refer to the two sides parallel to the conveying direction; that is, the bracket 51 is a quadrilateral structure composed of two horizontal bars and two connecting bars, and the lower bottom surface of the area of the connecting bars corresponding to the intermediate conveyor belt conveying mechanism 52 is higher than Height of the top surface of the crossbar. At this time, the height of the lower bottom surface of the connecting rod is higher than the height of the upper surface of the cross rod, and the connecting rod does not affect the transmission. The lift driving mechanism 50 can be a lead screw and nut mechanism; A height-adjustable groove dedicated to placing paint mixing cups is provided on the cup holder plate 6 .

The specific reclaiming method is to move from the upper layer to the lower layer: the lift drive mechanism 50 drives the bracket 51 to move down to the crossbar located in the gap, and the upper surface of the crossbar is lower than the upper surface of the conveyor belt in the conveyor belt transmission mechanism 52. At the same time, the cup plate 6 located on the two horizontal bars falls to the upper surface of the intermediate conveyor belt conveying mechanism 52 . The middle conveyor belt conveying mechanism 52 and the side conveyor belt conveying mechanism 53 corresponding to the lower pulp taking place rotate to transfer the cup holder plate 6 and the paint mixing cup to the corresponding pulp taking place. When going from the lower layer to the upper layer, the steps are reversed.

An in-position sensor 55 is provided on the side conveyor belt transmission mechanism 53 corresponding to the position where the color master turntable of the lower layer of the machine body receives the paste. An in-position sensor 55 is provided on the intermediate conveyor belt conveying mechanism 52 ; an in-position sensor 55 is provided on the lift drive mechanism 50 corresponding to the position of the paste connection position of the upper color master turntable 4 of the machine body 1 . After the in-position sensor senses, it 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. If the volume ratio is used for color matching, then the color masterbatch injection mechanism on the color masterbatch turntable 4 can use a constant volume injection mechanism. However, using weight-volume mixing toning requires the color masterbatch dispensing mechanism on the color masterbatch turntable 4 to use a constant volume dispensing mechanism, and the paint mixing cup needs to be placed on the electronic scale, and the electronic scale needs to move with the cup holder plate 6 .

When the color masterbatch injection mechanism is the color masterbatch constant volume injection mechanism 2, the color masterbatch barrel 20 and the color masterbatch barrel 20 are connected through the valve body 21 to the volume metering pump 22 driven by the driving mechanism for constant volume injection; the valve body 21 is provided with Slurry nozzle 23. The valve body 21 has on-off and commutation functions. The volume metering pump 22 may be a volume 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 masterbatch constant volume injection mechanism 2 is provided with a valve body lever 24 , and an injection channel 25 is provided in the valve body 21 . The machine body 1 is provided with a paint-receiving part 3 located above the slurry outlet, and a valve that toggles the valve body lever 24 is set on the paint-receiving part 3 to make it rotate so that the injection channel 25 is connected or closed with the slurry nozzle 23 Motor 33. The valve motor 33 is provided with a toggle lever, and the toggle lever rotates to make the valve body toggle lever 24 rotate.

The volume metering pump 22 is a piston pump; a second linear drive mechanism 34 is provided above the valve motor 33 on the material receiving and paint adjusting part 3, and a tie rod head baffle 340 that moves up and down is provided on the second linear drive mechanism 34 to lift or push down the piston pump. the piston rod 26. The second linear drive mechanism 34 can be a lead screw and nut mechanism, a lead screw 341 driven by a second servo motor is arranged on the paint receiving and adjusting component 3 , a nut 342 is arranged on the lead screw, and the nut 342 is connected to the tie rod head baffle 340 . The tie rod head baffle includes a groove structure, and the piston head of the piston rod leaves or enters the groove located in the groove structure when the color master barrel rotates. The up and down movement of the nut 342 causes the piston rod to move up and down to suck and dispense the masterbatch from the masterbatch.

The drip receiving box 7 is also provided below the valve motor 33 on the paint receiving and mixing part 3, which is driven by the driving mechanism to move. Station. A third linear motion mechanism is arranged on the paint-receiving part 3, for example, a motor drives a gear, the gear rotates to drive the rack to move, and the drip-receiving box 7 is connected to the rack to move together. Or a cylinder is arranged on the moving frame, and the cylinder piston rod drives the drip box 7 to move together. After the injection channel 25 is closed, that is, after the pulp nozzle 23 no longer discharges pulp, there may be residual color paste. The drip-receiving box 7 is set up. After the injection channel 25 is closed, the drip-receiving box 7 is moved to the right under the slurry nozzle 23 to prevent the residual color paste from dripping into the paint mixing cup and affecting the accuracy.

The color masterbatch barrel 20 is sealed with a barrel cover 201, and a breathing valve 205 is arranged on the barrel cover; the color masterbatch barrel 20 is provided with a stirring shaft 202 that is driven to rotate by a driving mechanism and one end extends into the color masterbatch barrel, and a spiral stirring blade is arranged on the stirring shaft 202. 207. A corrosion-resistant sealing ring is arranged between the color masterbatch barrel 20 and the barrel cover 201, and the sealing ring is made of a corrosion-resistant material, so as to adapt to the corrosiveness of the color masterbatch of the automobile paint. The spiral stirring blade 207 is a type of foam-cutting blade. During the stirring process, the masterbatch slurry can be beaten on the barrel wall, and the air bubbles can be knocked out or broken, which is convenient for volume measurement. Because the more bubbles, the more inaccurate the volume measurement. This is different from the paddles used in latex paints. The stirring and driving mode of the stirring shaft 202 refers to the stirring and driving mode of the latex paint of the turntable structure, which is the prior art, and will not be described in detail here.

The breathing valve (205) is a one-way valve with opposite directions. The valve body 21 is a return valve, and the volume metering pump 22 is a combination pump. The structure of the return valve and the combined pump can be as in the patent CN201410792479.7 or CN201711400600.7 or the valve body structure and the pump structure in CN201310045508.9. The backflow valve has a backflow channel. When the valve body 21 is in a closed state, that is, when no slurry is injected, the backflow channel is connected, that is, the valve body 21 is communicated with the color master barrel 20, and the automotive refinish paint can be returned to the color master barrel 20. Because the automotive refinishing paint is relatively viscous, if there is no return channel, the outflow channel 25 is easy to dry and block, resulting in difficulty in painting.

A code scanning module is set on the receiving and painting part 3, and a two-dimensional code is set on the color masterbatch constant volume injection mechanism 2. The code scanning module is a scanning gun, and the QR code records the color number of the color masterbatch and other information. The first time to take material, it is necessary to scan and confirm the volume injection mechanism 2 of each color masterbatch. After changing the color master barrel 20, it is also necessary to scan the replaced color master barrel 20 again.

There are two color master turntables on the lower layer of the body, and the three color master turntables are arranged in a character. This structure cooperates with the reclaiming mechanism 5 of the present utility model to utilize the space to the greatest extent. The lower color masterbatch turntable 4 is arranged on the body support plate; the body support plate is slidably arranged on the body 1 ; the outer surface of the body 1 support plate is provided with a handle. The lower masterbatch turntable can be pulled out for easy installation and disassembly.

Figures 8-9 show two types of cup trays. FIG. 8 is a structure in which an electronic scale is not provided on the pallet. In Fig. 9, an electronic scale is provided on the cup holder plate, and a groove for preventing paint mixing cups is provided on the electronic scale. The structure of FIG. 8 is suitable for the method of color matching by volume ratio. The structure of FIG. 9 can be used in a weight-volume mixing color matching method.

Specific implementation: For the volume color matching method: first, the system detects the weight ratio of the car refinish paint, converts the volume ratio required by the car refinish paint according to the volume color matching method of the car refinish paint, and finds the corresponding color masterbatch volume injection mechanism 2 s position. The reclaiming mechanism 5 moves the cup plate 6 and the paint mixing cup to the position corresponding to the pulp taking place of the color master turntable 4, and the color master turntable 4 rotates so that the required color master batch is poured out of the sizing nozzle 23 of the constant volume injection mechanism 2 through paint mixing. Stop over the cup. The second linear drive mechanism 34 is activated, the lead screw 341 rotates to drive the nut 342 to move upward, the rod head baffle 340 drives the piston rod 26 of the volume metering pump 22 to rise to extract the color paste, and after the piston rod 26 descends by a preset displacement, the valve motor 33 When activated, the outlet channel 25 of the valve body 21 communicates with the slurry nozzle 23, the piston rod 26 continues to descend, and a predetermined amount of color paste flows out from the slurry nozzle 23 to the paint mixing cup. The valve motor 33 is closed, and the drip box 7 is moved to the bottom of the pulp nozzle 23 . The color masterbatch turntable 4 is rotated to the next pulp outlet 23 that needs color masterbatch to reach the position of the pulp outlet, and the drip receiving box 7 is moved away to reclaim the material. After the color masterbatch on this masterbatch turntable 4 is taken, it is moved to the pulp taking place of the next masterbatch turntable 4 through the reclaiming mechanism 5 to reclaim the material. After all are taken out, the paint mixing cup is moved to a predetermined position, usually on the conveyor belt of the intermediate conveyor belt conveyor mechanism, waiting to be taken out.

The method of mixing color matching by weight and volume: The difference from the above method is that when taking a predetermined amount of color masterbatch, it is necessary to take most of the color masterbatch first, weigh it, calculate the remaining required weight, convert it into the remaining required volume, and type it out.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

Claims (10)

1. car refinishing paint mechanical colorant dispenser, including body (1) and controller, it is characterised in that: rotated including at least two Driving mechanism drives and is rotatably arranged on the color masterbatch turntable (4) on body (1), and a color masterbatch turntable (4) is located at body upper layer, until A few color masterbatch turntable (4) is located at body lower layer；Color masterbatch is set on color masterbatch turntable (4) and outpours mechanism, color masterbatch outpours mechanism and includes The slurry outlet nozzle (23) controlled by valve；The slurry outlet nozzle (23) that each color masterbatch outpours mechanism is lined up a circle and is arranged in color masterbatch turntable (4) On, each color masterbatch turntable (4) is arranged one and connects at slurry；Color masterbatch turntable (4) rotation makes each slurry outlet nozzle (23) successively by connecing slurry Place top；The material fetching mechanism (5) that setting converts paint cup position between respective color masterbatch turntable (4) connects slurry on body (1).

2. car refinishing paint mechanical colorant dispenser according to claim 1, it is characterised in that: the material fetching mechanism (5) includes setting The lift drive mechanism (50) on body (1) is set, what setting moved up and down on lift drive mechanism (50) is used to put hypanthium The bracket (51) of plate (6) and paint cup；Transmission tape transport is horizontally disposed on body (1)；Transmitting tape handler includes position Intermediate transport tape transport (52) immediately below bracket (51) and it is located at intermediate transport tape transport (52) left side Right both sides and between intermediate transport tape transport (52) there are the side of gap (54) transmit tape transport (53)；Bracket (51) include two to respectively correspond the cross bar of two gap (54) positions and connect the connecting rod of two cross bars, connecting rod is located at support Outside the transmission tape transport of frame (51) corresponding position, the upper surface of two cross bars drops to and intermediate transport tape transport (52) when conveyer belt upper surface is concordant, connecting rod is not contacted with transmission tape transport；Lift drive mechanism (50) and transmission Tape transport is electrically connected controller.

3. car refinishing paint mechanical colorant dispenser according to claim 2, it is characterised in that: be arranged on the bracket (51) The hypanthium plate (6) of paint cup is set；The upper surface of two cross bars drops to the conveyer belt with intermediate transport tape transport (52) When below upper surface, hypanthium plate (6) lower surface is higher than two cross bar highest face temperatures, and is located at the table that transmission tape transport is constituted On face.

4. car refinishing paint mechanical colorant dispenser according to claim 2, it is characterised in that: transmit tape transport in the side (53) body lower layer color masterbatch turntable (4) is corresponded on connects at slurry position setting inductor (55) in place；The middle carousel transmission Inductor (55) in place are set in mechanism (52)；Body upper layer color masterbatch turntable (4) is corresponded on lift drive mechanism (50) connects slurry Locate position setting inductor (55) in place.

5. car refinishing paint mechanical colorant dispenser according to claim 2, it is characterised in that: it is color masterbatch that the color masterbatch, which outpours mechanism, Determine volume to outpour mechanism (2), including color masterbatch bucket (20), color masterbatch bucket (20) connect driven-mechanism drive by valve body (21) and determine body The volumetric metering pump (22) that product outpours；Slurry outlet nozzle (23) are set on valve body (21).

6. car refinishing paint mechanical colorant dispenser according to claim 5, it is characterised in that: the color masterbatch determines volume and outpours mechanism (2) valve body driving lever (24) are set on valve body (21), setting outpours channel (25) in valve body (21)；It is arranged on the body (1) Splicing paint component (3) above at pulp, setting stirs valve body driving lever (24) and is allowed to rotate on splicing paint component (3) Make to outpour the valve driving machine (33) that channel (25) is connected to or closes with slurry outlet nozzle (23)；The volumetric metering pump (22) is piston Pump；Second straight line driving mechanism (34) are set above valve driving machine (33) on splicing paint component (3), second straight line driving mechanism (34) the drawhead baffle (340) moved up and down is set on and promotes or push the piston rod (26) of piston pump.

7. car refinishing paint mechanical colorant dispenser according to claim 6, it is characterised in that: on the splicing paint component (3) Setting driven-mechanism drives below valve driving machine (33) and box (7) are dripped in mobile connecing, and connecing drop box (7) includes being located at paint cup just The avoidance station for connecing drop station and avoiding paint cup position of top.

8. according to any car refinishing paint mechanical colorant dispenser of claim 5-7, it is characterised in that: on the color masterbatch bucket (20) Breather valve (205) are arranged on bung in sealed set bung (201)；In color masterbatch bucket (20) setting driven-mechanism drive rotation and The agitating shaft (202) of color masterbatch bucket is protruded into one end, and auger leaf is arranged on agitating shaft (202)；The valve body (21) is return valve, The volumetric metering pump (22) is size combinations pump.

9. according to any car refinishing paint mechanical colorant dispenser of claim 6-7, it is characterised in that: the splicing paint component (3) barcode scanning module is set on, and color masterbatch determines volume and outpour two dimensional code is arranged on mechanism (2).

10. -7 any car refinishing paint mechanical colorant dispenser according to claim 1, it is characterised in that: body (1) lower layer Two color masterbatch turntables (4) are set, and three color masterbatch turntables (4) are arranged in product word.