An automobile coating production system

Abstract

The utility model discloses a kind of automobile coating production systems, belong to coating production field, sequentially including premixing system, grinding system, paint mixing system and filtering system, premixing material discharge pipe is connected with the feed inlet of grinding system, grinding fine slurry discharge pipe is connected with the first paint mixing feed inlet of paint mixing system, paint mixing discharge pipe is connected with the feed inlet of filtering system, premixing pigment feed pipe is connected with first tubular screw conveyor, premixing filler feed pipe is connected with second tubular screw conveyor.The utility model can realize continuous production, product uniformity is better, avoid the problem that product is uneven and leads to poor quality.

Description

Technical Field

[0001] This utility model relates to coating production, and more specifically, to an automotive coating production system. Background Technology

[0002] Automotive paint is a mixture that can firmly cover the surface of an object, serving protective, decorative, marking, and other special purposes. Early paints were mostly made primarily of vegetable oils, hence the name "oil paint," such as the healthy, environmentally friendly, and natural tung oil. Whether traditional paints made from natural substances or modern paints made from synthetic chemicals, they all belong to organic chemical polymer materials, and the resulting coating film is a type of polymer compound. According to the modern classification of chemical products, paints belong to fine chemical products. Essentially, paint production involves dispersing solid pigment particles and filler particles into a resin solution using external force, forming a uniform, finely dispersed suspension.

[0003] The existing automotive coating production process consists of the following steps: premixing, grinding, paint mixing, filtration, and packaging. Premixing involves initially mixing pigments, fillers, some resins, and solvents to form a slurry. Grinding involves grinding the slurry to the required fineness to ensure uniform dispersion. Paint mixing involves mixing the ground slurry with the remaining resins, solvents, additives, etc., to adjust the final properties of the coating. Filtration is used to remove impurities and undispersed particles from the coating to ensure its purity and quality.

[0004] The existing automotive coatings production process has the following shortcomings:

[0005] (1) The processes are basically intermittent, and a continuous production line has not been formed, which is not conducive to industrial production.

[0006] (2) The particle size of pigments and fillers is in the micrometer range. The small particle size makes it easy for pigment particles and filler particles to aggregate, which leads to poor stability and uniformity of the coating during the coating production process. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides an automotive coating production system, which aims to solve at least one of the problems mentioned above.

[0008] An automotive coating production system sequentially includes a premixing system, a grinding system, a paint mixing system, and a filtration system. The premixing system is connected to a premixed material discharge pipe, the grinding system is connected to a fine ground slurry discharge pipe, and the paint mixing system is connected to a paint mixing discharge pipe. The premixing system is also connected to premixed pigment feed pipes, premixed filler feed pipes, premixed resin feed pipes, and premixed solvent feed pipes. The paint mixing system is also connected to paint mixing resin feed pipes and paint mixing solvent feed pipes. The premixed material discharge pipe is connected to the inlet of the grinding system, the fine ground slurry discharge pipe is connected to the first paint mixing inlet of the paint mixing system, the paint mixing discharge pipe is connected to the inlet of the filtration system, the premixed pigment feed pipe is connected to a first tubular screw conveyor, and the premixed filler feed pipe is connected to a second tubular screw conveyor.

[0009] Optionally, each of the premixed resin feed pipe, premixed solvent feed pipe, paint mixing resin feed pipe, and paint mixing solvent feed pipe is equipped with a gear pump, and each of the premixed material discharge pipe, ground fine slurry discharge pipe, and paint mixing discharge pipe is equipped with a slurry pump.

[0010] Optionally, the screw conveying mechanism of the first tubular screw conveyor is made of metal. The screw conveying mechanism is installed on the ground by several metal supports, and thin metal rods are equidistantly arranged between two adjacent metal supports.

[0011] Optionally, a gravity feeding device is provided between the second tubular screw conveyor and the premixed filler feed pipe. The gravity feeding device includes a box and a dispersing and agglomerating component. The box forms a cavity, and a chute is connected to the middle of the bottom of the box. The dispersing and agglomerating component includes a dispersing and agglomerating shaft. Several dispersing and agglomerating rods are installed from top to bottom near the inlet of the chute. A handle is connected to the other end of the dispersing and agglomerating shaft. The handle is located above the box. The discharge pipe of the second tubular screw conveyor enters the cavity from the top of the box, and the lower end of the chute is connected to the premixed filler feed pipe.

[0012] Optionally, the paint mixing system is a paint mixing tank, which is equipped with a paint mixing agitator. The fine slurry discharge pipe passes through the first paint inlet and enters the inner cavity of the paint mixing tank. The fine slurry discharge pipe is located at the port of the inner cavity of the paint mixing tank near the mixing blade of the paint mixing agitator, and this port is at an angle.

[0013] Optionally, the fine slurry discharge pipe is provided with uniformly distributed through holes on its wall at the normal liquid level of the paint mixing tank, with the diameter of the through holes being 10 to 30 micrometers.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention enables continuous production, resulting in better product uniformity and avoiding the problem of poor quality caused by uneven product dispersion. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the automotive coating production system of this utility model;

[0018] Figure 2 This is a schematic diagram of the conveying mechanism of the first tubular screw conveyor of this utility model;

[0019] Figure 3 This is a schematic diagram of the gravity feeding device of this utility model;

[0020] Figure 4 This is a schematic diagram of the premixing system structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the paint mixing system of this utility model;

[0022] Explanation of reference numerals in the attached drawings: 1. Premixing system; 11. Premixed pigment feed pipe; 12. Premixed filler feed pipe; 13. Premixed resin feed pipe; 14. Premixed solvent feed pipe; 15. Screw conveyor mechanism; 151. Metal support; 152. Metal rod; 16. Gravity feeding device; 161. Box; 162. Cavity; 163. Dispersing and agglomerating component; 1631. Dispersing and agglomerating shaft; 1632. Dispersing and agglomerating rod; 1633. Handle; 164. Chute; 165. Sleeve; 17. Premixing agitator; 2. Grinding system; 3. Paint mixing system; 31. First paint mixing inlet; 32. Paint mixing resin feed pipe; 33. Paint mixing solvent feed pipe; 34. Paint mixing agitator; 4. Filtration system; 5. Premixed material discharge pipe; 6. Grinded fine slurry discharge pipe; 7. Paint mixing discharge pipe. Detailed Implementation

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise precisely specified.

[0025] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0028] Please refer to Figures 1-5 , Figure 1 This is a schematic diagram of the overall structure of the automotive coating production system of this utility model. Figure 2 This is a schematic diagram of the conveying mechanism of the first tubular screw conveyor of this utility model. Figure 3 This is a schematic diagram of the gravity feeding device of this utility model. Figure 4 This is a schematic diagram of the premixing system structure of this utility model. Figure 5 This is a schematic diagram of the paint mixing system of this utility model.

[0029] An automotive coating production system includes, in sequence, a premixing system 1, a grinding system 2, a paint mixing system 3, and a filtration system 4. The premixing system 1 is connected to a premixed material discharge pipe 5, which is connected to the inlet of the grinding system 2. The grinding system 2 is connected to a fine slurry discharge pipe 6, which is connected to the first paint mixing inlet 31 of the paint mixing system 3. The paint mixing system 3 is connected to a paint mixing discharge pipe 7, which is connected to the inlet of the filtration system 4. The premixing system 1 is also connected to a premixed pigment inlet pipe 11, a premixed filler inlet pipe 12, a premixed resin inlet pipe 13, and a premixed solvent inlet pipe 14. The premixed pigment inlet pipe 11 is connected to a first tubular screw conveyor, and the premixed filler inlet pipe 12 is connected to a second tubular screw conveyor. The paint mixing system 3 is also connected to a paint mixing resin inlet pipe 32 and a paint mixing solvent inlet pipe 33.

[0030] Each of the premixed resin feed pipe 13, the premixed solvent feed pipe 14, the paint mixing resin feed pipe 32, and the paint mixing solvent feed pipe 33 is equipped with a gear pump, and each of the premixed material discharge pipe 5, the fine grinding slurry discharge pipe 6, and the paint mixing discharge pipe 7 is equipped with a slurry pump.

[0031] During production, the first and second tubular screw conveyors each feed pigments and fillers into the premixing system 1. The premixed resin feed pipe 13 and premixed solvent feed pipe 14 respectively feed resin and solvent into the premixing system 1, mixing simultaneously. When the slurry mixed in the premixing system 1 meets the requirements, the valve on the premixed material discharge pipe 5 opens, and the slurry pump on the premixed material discharge pipe 5 delivers the slurry to the grinding system 2. When the slurry ground in the grinding system 2 meets the requirements, the valve on the fine slurry discharge pipe 6 opens, and the slurry pump on the fine slurry discharge pipe 6 delivers the slurry to the paint mixing system 3. When the slurry mixed in the paint mixing system 3 meets the requirements, the valve on the paint mixing discharge pipe 7 opens, and the slurry pump on the paint mixing discharge pipe 7 delivers the slurry to the filtration system 4. The filtered paint product from the filtration system 4 enters the product tank and then undergoes subsequent processes such as packaging. The entire process can achieve continuous production.

[0032] If additives are required during production, they enter through the premixed solvent feed pipe 14 or the paint solvent feed pipe 33.

[0033] In one or more specific embodiments of this utility model, the grinding system 2 is a ball mill.

[0034] In one or more specific embodiments of this utility model, the filtration system 4 is a filter tank, and the filter tank is filled with a screen.

[0035] In one or more specific embodiments of this utility model, in order to reduce pigment particle aggregation, and considering the characteristics of pigment particles (strong electrostatic adsorption), the screw conveying mechanism 15 of the first tubular screw conveyor is made of metal. This screw conveying mechanism 15 is mounted on the ground via several metal supports 151, with thin metal rods 152 equidistantly arranged between adjacent metal supports 151. The metal supports 151 and the thin metal rods 152 eliminate static electricity generated during the conveying process, thus preventing the aggregation of pigment particles.

[0036] In one or more specific embodiments of this utility model, in order to reduce the aggregation of packing and to disperse the aggregated packing, a gravity feeding device 16 is provided between the second tubular screw conveyor and the premixed packing feed pipe 12, taking into account the characteristics of the packing. The gravity feeding device 16 includes a box 161 and a dispersing and agglomerating component 163. The box 161 forms a cavity 162. A chute 164 is connected to the middle of the bottom of the box 161. The dispersing and agglomerating component 163 includes a dispersing and agglomerating shaft 1631. Several dispersing and agglomerating rods 1632 are installed from top to bottom on the dispersing and agglomerating shaft 1631 near the inlet of the chute 164. A handle 1633 is connected to the other end of the dispersing and agglomerating shaft 1631. The handle 1633 is located above the box 161. The discharge pipe of the second tubular screw conveyor enters the cavity 162 from the top of the box 161. The lower end of the chute 164 is connected to the premixed packing feed pipe 12. The packing material from the discharge pipe of the second tubular screw conveyor falls into the cavity 162 under the action of gravity. After falling, it also falls into the premixed packing feed pipe 12 through the chute 164 under the action of gravity. When it is not necessary to disperse the material, the handle 1633 is placed on the bracket located at the top of the box 161. When it is necessary to disperse the material, the handle 1633 is removed from the bracket, the bracket is removed, and the dispersing and agglomerating shaft 1631 is rotated to disperse the agglomerated lumps.

[0037] In one or more specific embodiments of this utility model, in order to obtain a better dispersing effect, the length of the dispersing and agglomerating rod 1632 gradually shortens from top to bottom.

[0038] In one or more specific embodiments of this utility model, in order to prevent the dispersing and agglomerating shaft 1631 from shifting, the gravity feeding device 16 further includes a sleeve 165, which is installed in the cavity 162 and its upper end is connected to the inner wall of the top of the box 161. The dispersing and agglomerating shaft 1631 passes through the sleeve 165.

[0039] In one or more specific embodiments of this utility model, in order to detect the presence of caking in a timely manner, one side wall of the box 161 is made of a transparent material.

[0040] In one or more specific embodiments of this utility model, the premixing system 1 is a premixing tank, and the premixing tank is equipped with a premixing stirrer 17.

[0041] In one or more specific embodiments of this utility model, the paint mixing system 3 is a paint mixing tank, which is equipped with a paint mixing agitator 34. The fine slurry discharge pipe 6 passes through the first paint inlet 31 and enters the inner cavity of the paint mixing tank. The fine slurry discharge pipe 6 is located at the port of the inner cavity of the paint mixing tank near the stirring blade of the paint mixing agitator 34, and this port is at an angle. This allows the aggregated material coming out from the angled port to be dispersed.

[0042] In one or more specific embodiments of this utility model, in order to obtain a better homogenization effect, the fine slurry discharge pipe 6 is provided with uniformly distributed through holes on the pipe wall at the normal liquid level of the paint mixing tank. This allows the unaggregated fine slurry to enter the paint mixing tank through the through holes, and the aggregated slurry to fall downward from the inclined opening to the stirring blade of the paint mixing agitator 34, where the stirring blade rotates and disperses it.

[0043] In one or more specific embodiments of this utility model, the diameter of the through hole is 10 to 30 micrometers.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automotive coating production system, comprising, in sequence, a premixing system (1), a grinding system (2), a paint mixing system (3), and a filtration system (4), wherein the premixing system (1) is connected to a premixed material discharge pipe (5), the grinding system (2) is connected to a fine ground slurry discharge pipe (6), the paint mixing system (3) is connected to a paint mixing discharge pipe (7), the premixing system (1) is also connected to a premixed pigment feed pipe (11), a premixed filler feed pipe (12), a premixed resin feed pipe (13), and a premixed solvent feed pipe (14), and the paint mixing system (3) is also connected to a paint mixing resin feed pipe (32) and a paint mixing solvent feed pipe (33), characterized in that, The premixed material discharge pipe (5) is connected to the feed inlet of the grinding system (2), the fine slurry discharge pipe (6) is connected to the first paint feed inlet (31) of the paint mixing system (3), the paint discharge pipe (7) is connected to the feed inlet of the filtration system (4), the premixed pigment feed pipe (11) is connected to the first tubular screw conveyor, and the premixed filler feed pipe (12) is connected to the second tubular screw conveyor.

2. The automotive coating production system according to claim 1, characterized in that, Each of the premixed resin feed pipe (13), premixed solvent feed pipe (14), paint mixing resin feed pipe (32) and paint mixing solvent feed pipe (33) is equipped with a gear pump, and each of the premixed material discharge pipe (5), ground fine slurry discharge pipe (6) and paint mixing discharge pipe (7) is equipped with a slurry pump.

3. The automotive coating production system according to claim 1, characterized in that, The grinding system (2) is a ball mill.

4. The automotive coating production system according to claim 1, characterized in that, The filtration system (4) is a filter tank, which contains a screen.

5. The automotive coating production system according to claim 1, characterized in that, The screw conveying mechanism (15) of the first tubular screw conveyor is made of metal. The screw conveying mechanism (15) is installed on the ground by several metal supports (151), and thin metal rods (152) are equidistantly arranged between two adjacent metal supports (151).

6. The automotive coating production system according to claim 1, characterized in that, A gravity feeding device (16) is provided between the second tubular screw conveyor and the premixed filler feed pipe (12). The gravity feeding device (16) includes a housing (161) and a dispersing and agglomerating component (163). The housing (161) forms a cavity (162). A chute (164) is connected to the middle of the bottom of the housing (161). The dispersing and agglomerating component (163) includes a dispersing and agglomerating shaft (1631). Several dispersing and agglomerating rods (1632) are installed from top to bottom near the inlet of the chute (164). The other end of the dispersing and agglomerating shaft (1631) is connected to a handle (1633). The handle (1633) is located above the box (161). The discharge pipe of the second tubular screw conveyor enters the cavity (162) from the top of the box (161). The lower end of the chute (164) is connected to the premixed filler feed pipe (12).

7. The automotive coating production system according to claim 1, characterized in that, The paint mixing system (3) is a paint mixing tank, which is equipped with a paint mixing agitator (34). The fine slurry discharge pipe (6) passes through the first paint inlet (31) and enters the inner cavity of the paint mixing tank. The fine slurry discharge pipe (6) is located at the port of the inner cavity of the paint mixing tank near the mixing blade of the paint mixing agitator (34), and this port is oblique.

8. The automotive coating production system according to claim 7, characterized in that, The fine slurry discharge pipe (6) is located on the pipe wall at the normal liquid level of the paint mixing tank and has uniformly distributed through holes with a diameter of 10 to 30 micrometers.

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