Odor-free low-VOC (volatile organic compound) water-based glass wine bottle baking coating and preparation method thereof

Abstract

The invention provides an odorless low-VOC water-based glass wine bottle baking coating and a preparation method thereof, and relates to the technical field of coating preparation. Comprising a component A and a component B, wherein the component A comprises a water-based acrylic dispersion, a PH value regulator, a water-based dispersing agent, a water-based defoaming agent, deionized water, fumed silica, carbon black pigment powder, iron oxide red pigment powder, water-based amino resin, a water-based base material wetting agent, a nonionic wetting and molecular defoaming agent and water-based matting powder; the component B is an adhesion promoter; according to the invention, in the process of designing the formula, the main body resin selected in the formula of the coating needs to meet the requirements of good adhesion to a glass substrate, excellent constructability and rapid surface leveling property, and meanwhile, the VOC content of the selected acrylic dispersion needs to be considered; the content of VOC and free formaldehyde in the water-based amino resin is as low as possible, and the actual baking temperature, time and the like of a coating baking line of most customers on the market can be met.

Description

Technical Field

[0001] The invention relates to the technical field of coating preparation, and in particular to a clean, low-VOC water-based glass wine bottle baking coating and a preparation method thereof. Background Art

[0002] As people's material culture continues to enrich, wine bottles, curtain walls, perfume bottles, refrigerators, glass lamps and other items are used more and more frequently in people's daily lives. Due to the different places of use, the performance requirements for glass coatings are also very different. For example, wine bottles require good water resistance and alcohol resistance, refrigerators need to be resistant to detergent immersion, curtain walls need good water resistance, and perfumes need to reflect their high-end quality through the appearance of perfume bottles, and the coating needs to have high permeability and good medium resistance.

[0003] The coatings used for wine bottle coating generally require excellent wet permanent adhesion, good hardness and scratch resistance, very good alcohol resistance, and good gloss and color retention.

[0004] With the increasing awareness of environmental protection and the introduction of environmental protection laws and regulations in various countries, water-based paint has become an important direction for the development of paint. It can not only reduce the emission of solvents in production, but also can easily adjust the construction viscosity in an environmentally friendly way. In recent years, the early solvent-based two-component glass bottle paint and solvent-based acrylic amino glass baking paint have been completely replaced by water-soluble acrylic amino baking paint, which does not contain harmful solvents such as benzene and esters, has a relatively low VOC content, uses water as a solvent, and can add up to 30-60% of water during construction. Its performance is also comparable to that of solvent-based paint.

[0005] However, with the continuous improvement of people's health and environmental awareness and the country's increasingly strengthened control over VOC emissions, the VOC content of the current mainstream water-soluble acrylic amino baking paint, calculated according to Method 2 in 8.3 of the GB / T 23985-2009 (or ISO 11890-1:2007) standard document, is approximately 300-500g / L, which still cannot meet the urgent needs of production development.

[0006] Therefore, the preparation of high-performance water-based glass bottle coating products with lower VOC and zero odor will have broad application development prospects. Summary of the invention

[0007] In view of the above problems, the present invention provides a clean and low-VOC water-based glass bottle baking coating and a preparation method, the purpose of which is to meet the requirements of clean and low-VOC while achieving the workability and the same index detection technical requirements as water-soluble acrylic amino baking glass coating.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a odorless and low-VOC water-based glass bottle baking paint, comprising component A: water-based acrylic dispersion, pH regulator, water-based dispersant, water-based defoamer, deionized water, fumed silica, carbon black pigment powder, iron oxide red pigment powder, water-based amino resin, water-based substrate wetting agent, non-ionic wetting and molecular defoamer, water-based matting powder; component B: adhesion promoter; component C: ionized water diluent.

[0009] Further, according to the above technical scheme, a method for preparing a low-VOC water-based glass bottle baking coating is also provided, comprising the following steps: S1. Under stirring conditions, 40.0-60.0 parts by weight of an aqueous acrylic dispersion, 0.1-0.5 parts by weight of a pH regulator, 0.5-2.0 parts by weight of an aqueous dispersant, 0.1-0.5 parts by weight of a defoamer, 10-20 parts by weight of deionized water, 0.01-0.1 parts by weight of fumed silica, 3-5 parts by weight of carbon black pigment powder, 5.0-10.0 parts by weight of iron oxide red pigment powder, and finally 15.0-20.0 parts by weight of deionized water were used to wash the inner wall of the container and stirred evenly; S2. Grind with a grinder to a fineness of less than 15µm; S3. Continue to add 8.0-12.0 parts by weight of water-based amino resin, 0.2-0.5 parts of water-based substrate wetting agent, 0.3-0.8 parts of non-ionic wetting and molecular defoaming agent into the color paste, add 1.0-2.0 parts by weight of water-based matting powder while stirring, add 15-25 parts by weight of deionized water in due time according to the viscosity of the coating during the feeding process, and finally confirm the pH value of the coating again, and fine-tune the pH value to 8.2-8.5 according to the actual data; after adding, stir and mix thoroughly, and then filter and package with a 300-mesh filter to obtain a single-coated coffee-colored water-based glass bottle baking paint coating component A; S4. The adhesion promoter of component B is an epoxy silane coupling agent and does not need to be prepared; The ion water diluent of component S5.C is pure water.

[0010] Furthermore, since the preparation process of component B requires continuous feeding for a long time, in a container, when the amount of material is small at the beginning, the solvent is large, the liquid level is shallow, and the stirring effect is poor. It is necessary to change the solvent at any time according to the amount of material, so that the liquid level is kept above the middle of the stirring component from the beginning, and different stirring modes can be used when the liquid level is low and high, so as to further reduce the uneven stirring caused by the liquid level. The stirring device includes a main bracket, one side of the main bracket is rotatably connected to a universal shaft, a stirring barrel is provided in the middle of the universal shaft, the top of the stirring barrel is connected to an external feeding device through a hose, and the bottom of the stirring barrel is connected to an external material receiving device through a hose, and the two ends of the stirring barrel are rotatably connected to a rotating barrel unit, and a plurality of the rotating barrel units are arranged at both ends of a bidirectional linear guide base.

[0011] Furthermore, the mixing barrel includes a main barrel body, the top of the main barrel body is connected to an external feeding device through a hose, and the bottom of the main barrel body is connected to an external material receiving device through a hose, the middle part of the main barrel body is rotatably connected to the middle part of the universal shaft, and telescopic limit rings are respectively provided at both ends of the main barrel body. The interior of the main barrel body is slidably connected to multiple telescopic barrels, and one end of the multiple telescopic barrels is respectively provided with a shaking barrel limit ring, and the multiple shaking barrel limit rings are respectively rotatably connected to the execution ends of the multiple rotating barrel units, and the middle part of one end of the multiple telescopic barrels is respectively rotatably connected to the stirring unit, one end of the multiple stirring units is respectively arranged in the middle of the stirring drive unit, and the multiple stirring drive units are respectively arranged at one end of the multiple telescopic barrels.

[0012] Furthermore, the stirring unit includes a plurality of stirring rods, one end of each of the plurality of stirring rods is disposed on one side of a stirring seat, the interior of the stirring seat is rotatably connected to a stirring action disk, the middle part of the stirring action disk is rotatably connected to a stirring shaft, one end of the stirring shaft is coaxially connected to a stirring gear, one side of the stirring gear is meshed with one side of a first transmission gear, the other side of the first transmission gear is meshed with one side of a second transmission gear, and the other side of the second transmission gear is meshed with an inner side of the stirring seat, the stirring gear, the first transmission gear and the second transmission gear are all disposed inside the stirring action disk, the middle part of the stirring action disk is coaxially connected to the action gear, one end of the stirring shaft is coaxially connected to the shaft gear, and the action gear and the shaft gear are both disposed in the middle part of the stirring drive unit.

[0013] Furthermore, the stirring seat includes a seat plate, one side of the seat plate is provided with a plurality of stirring rods, and the other side thereof is provided with an annular groove, the inner side of the annular groove is provided with a gear ring, and the gear ring is meshed and connected to the other side of the second transmission gear; the stirring action plate includes an eccentric plate, a middle side of the eccentric plate is provided with a hollow shaft, the middle part of the hollow shaft is rotatably connected to the middle part of one end of the telescopic barrel, the inside of the hollow shaft is rotatably connected to the middle part of the stirring shaft, one end of the hollow shaft is coaxially connected to the action gear, the stirring gear, the first transmission gear and the second transmission gear are all arranged inside the eccentric plate, and a gear meshing opening is opened on one side of the eccentric plate.

[0014] Furthermore, the stirring drive unit includes a stirring drive motor, which is arranged on one side of the driving shell, and the other side of the driving shell is arranged at one end of the telescopic barrel, the output end of the stirring drive motor is coaxially connected to the stirring motor gear, and the two sides of the stirring motor gear are respectively engaged with the action transmission gears, and multiple action transmission gears are respectively coaxially connected to one end of the hexagonal transmission shaft, and multiple hexagonal transmission shafts are all rotatably connected to the middle part of the driving shell, and the middle parts of multiple hexagonal transmission shafts are respectively slidably connected to the action switching gears, and multiple action switching gears are all arranged in the middle part of the action switching card block, the action gear and the shaft gear are both arranged in the middle part of the action switching card block, and the two ends of the action switching card block are respectively arranged at the execution ends of multiple telescopic cylinders, and multiple telescopic cylinders are respectively arranged at the two ends of the driving shell.

[0015] Furthermore, the action switching block includes a movable gear bin, and gear blocks are respectively provided in the middle of two sides of the movable gear bin, and the plurality of action switching gears are all arranged inside the movable gear bin.

[0016] Furthermore, the rotating barrel unit includes a swivel, which is rotatably connected to one end of the mixing barrel, one side of the swivel is provided at one end of a movable crank arm, the other end of the movable crank arm is hinged to one end of the swivel arm, the swivel arm is rotatably connected to one side of an upper portion of a rotating barrel support, a reduction motor is provided on the other side of the rotating barrel support, and an output end of the reduction motor is coaxially connected to the swivel arm.

[0017] Furthermore, the center of the rotating ring must not be located on the rotating axis of the rotating arm.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In the process of formula design, it is necessary to fully consider that the main resin selected for the coating formula needs to meet the requirements of good adhesion to the glass substrate [including conventional adhesion and wet adhesion (through boiling test)], excellent workability, fast surface leveling, and at the same time, the VOC content of the selected acrylic dispersion, the VOC and free formaldehyde content of the water-based amino resin should be as low as possible (free formaldehyde is the main reason for the front-line operators to shed tears and pungent smell), and can meet the actual baking temperature and time of the coating baking line of most customers in the market. The main resin is an important component of the paint film coating. Many physical properties of the test can only be achieved after the main resin reacts with the cross-linking agent to form a film. Selecting a suitable main resin that meets various properties is crucial in formula design. At the same time, the selection and reasonable combination of various additives are the key to presenting a perfect and flawless coating surface effect; and the water-based acrylic dispersion is used as the main resin, which provides the coating with excellent adhesion to the glass substrate, and also meets the relevant factors such as low VOC, zero odor, and good construction performance; at the same time, the volume can be changed through the stirring equipment with multiple stirring methods to ensure that the volume is always matched with the amount of material in the period during the slow addition process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the stirring barrel of the present invention; Figure 4 It is a schematic cross-sectional view of the mixing barrel structure of the present invention; Figure 5 This is a schematic diagram of the disassembly of the mixing barrel structure of the present invention; Figure 6 It is a schematic diagram of the structure of the stirring unit of the present invention; Figure 7 It is a schematic diagram of the structure of the stirring drive unit of the present invention; Figure 8 This is a schematic diagram of the structure of the stirring drive unit of the present invention; Fig. 9 It is a schematic diagram of the structure of the rotary barrel unit of the present invention; Fig.10 It is a top plan view of the rotary barrel unit structure of the present invention.

[0020] In the figure: 1, main bracket; 2, universal shaft; 3, mixing barrel; 31, main barrel body; 32, telescopic limit ring; 33, telescopic barrel; 34, shaking barrel limit ring; 35, mixing unit; 351, stirring rod; 352, stirring seat; 3521, seat plate; 3522, annular slide groove; 3523, gear ring; 353, stirring action plate; 3531, eccentric plate; 3532, hollow shaft; 3533, gear bite; 354, stirring shaft; 355, stirring gear; 356, first transmission gear; 357, second transmission gear; 3 58. Action gear; 359. Shaft gear; 36. Stirring drive unit; 361. Stirring drive motor; 362. Drive housing; 363. Action transmission gear; 364. Hexagonal transmission shaft; 365. Action switching gear; 366. Action switching card block; 3661. Movable gear bin; 3662. Gear card block; 367. Telescopic cylinder; 368. Stirring motor gear; 4. Rotating barrel unit; 41. Rotating ring; 42. Movable crank arm; 43. Rotating arm; 44. Rotating barrel support; 45. Reduction motor; 5. Bidirectional linear guide base. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] The following describes an embodiment of the present invention based on its overall structure.

[0023] Embodiment, a odorless and low-VOC water-based glass bottle baking paint comprises component A: water-based acrylic dispersion, pH regulator, water-based dispersant, water-based defoamer, deionized water, fumed silica, carbon black pigment powder, iron oxide red pigment powder, water-based amino resin, water-based substrate wetting agent, non-ionic wetting and molecular defoamer, water-based matting powder; component B: adhesion promoter; component C: ionized water diluent.

[0024] Embodiment, a method for preparing a odorless and low-VOC water-based glass bottle baking coating comprises the following steps: S1. Under stirring conditions, 40.0-60.0 parts by weight of an aqueous acrylic dispersion, 0.1-0.5 parts by weight of a pH regulator, 0.5-2.0 parts by weight of an aqueous dispersant, 0.1-0.5 parts by weight of a defoamer, 10-20 parts by weight of deionized water, 0.01-0.1 parts by weight of fumed silica, 3-5 parts by weight of carbon black pigment powder, 5.0-10.0 parts by weight of iron oxide red pigment powder, and finally 15.0-20.0 parts by weight of deionized water were used to wash the inner wall of the container and stirred evenly; S2. Grind with a grinder to a fineness of less than 15µm; S3. Continue to add 8.0-12.0 parts by weight of water-based amino resin, 0.2-0.5 parts of water-based substrate wetting agent, 0.3-0.8 parts of non-ionic wetting and molecular defoaming agent into the color paste, add 1.0-2.0 parts by weight of water-based matting powder while stirring, add 15-25 parts by weight of deionized water in due time according to the viscosity of the coating during the feeding process, and finally confirm the pH value of the coating again, and fine-tune the pH value to 8.2-8.5 according to the actual data; after adding, stir and mix thoroughly, and then filter and package with a 300-mesh filter to obtain a single-coated coffee-colored water-based glass bottle baking paint coating component A; S4. The adhesion promoter of component B is an epoxy silane coupling agent and does not need to be prepared; The ion water diluent of component S5.C is pure water.

[0025] For example, please refer to Figure 1-2 The stirring device includes a main bracket 1, one side of the main bracket 1 is rotatably connected to a universal shaft 2, a stirring barrel 3 is provided in the middle of the universal shaft 2, the top of the stirring barrel 3 is connected to an external feeding device through a hose, and the bottom of the stirring barrel 3 is connected to an external material receiving device through a hose, and the two ends of the stirring barrel 3 are respectively rotatably connected to a rotating barrel unit 4, and a plurality of the rotating barrel units 4 are arranged at the two ends of a bidirectional linear guide base 5. This design uses the stirring barrel 3 to stir the materials added to the due date in multiple modes, and at the same time, according to the amount added, the rotating barrel unit 4 is driven to move through the bidirectional linear guide base 5, thereby lengthening the stirring barrel 3 and changing the barrel volume.

[0026] For example, please refer to Figure 3-4 The mixing barrel 3 includes a main barrel body 31, the top of the main barrel body 31 is connected to an external feeding device through a hose, and the bottom of the main barrel body 31 is connected to an external material receiving device through a hose, the middle part of the main barrel body 31 is rotatably connected to the middle part of the universal shaft 2, and telescopic limit rings 32 are respectively provided at both ends of the main barrel body 31, and the interior of the main barrel body 31 is slidably connected to multiple telescopic barrels 33, and one end of the multiple telescopic barrels 33 is respectively provided with a shaking barrel limit ring 34, and the multiple shaking barrel limit rings 34 are respectively rotatably connected to the execution ends of the multiple rotating barrel units 4, and the middle part of one end of the multiple telescopic barrels 33 is respectively rotatably connected to the stirring unit 35, and one end of the multiple stirring units 35 is respectively arranged in the middle of the stirring drive unit 36, and the multiple stirring drive units 36 are respectively arranged at one end of the multiple telescopic barrels 33. This design drives the two stirring units 35 to move through the two stirring drive units 36, and the motors in the two stirring drive units 36 are synchronous motors to ensure that the two stirring units 35 move synchronously.

[0027] For example, please refer to Figure 6The stirring unit 35 includes a plurality of stirring rods 351, one end of each of the plurality of stirring rods 351 is disposed on one side of a stirring seat 352, the interior of the stirring seat 352 is rotatably connected to a stirring action disk 353, the middle of the stirring action disk 353 is rotatably connected to a stirring shaft 354, one end of the stirring shaft 354 is coaxially connected to a stirring gear 355, one side of the stirring gear 355 is meshed with one side of a first transmission gear 356, the other side of the first transmission gear 356 is meshed with one side of a second transmission gear 357, the other side of the second transmission gear 357 is meshed with the inner side of the stirring seat 352, the stirring gear 355, the first transmission gear 356 and the second The transmission gears 357 are all arranged inside the stirring action disk 353, the middle part of the stirring action disk 353 is coaxially connected to the action gear 358, one end of the stirring shaft 354 is coaxially connected to the shaft gear 359, the action gear 358 and the shaft gear 359 are all arranged in the middle part of the stirring drive unit 36, the stirring seat 352 includes a seat plate 3521, one side of the seat plate 3521 is provided with a plurality of stirring rods 351, and the other side thereof is provided with an annular groove 3522, the inner side of the annular groove 3522 is provided with a gear ring 3523, and the gear ring 3523 is engaged and connected with the other side of the second transmission gear 357; the stirring action disk 353 includes an eccentric disk 3531, the eccentric disk 3531 A hollow shaft 3532 is provided on one side of the middle of the center plate 3531, and the middle part of the hollow shaft 3532 is rotatably connected to the middle part of one end of the telescopic barrel 33, and the inside of the hollow shaft 3532 is rotatably connected to the middle part of the stirring shaft 354, and one end of the hollow shaft 3532 is coaxially connected to the action gear 358, and the stirring gear 355, the first transmission gear 356 and the second transmission gear 357 are all arranged inside the eccentric plate 3531, and a gear engagement opening 3533 is provided on one side of the eccentric plate 3531. This design fixes the action gear 358 through the stirring drive unit 36 ​​and drives the shaft gear 359 to rotate at the same time, and the stirring shaft 354 and the stirring gear 355 rotate, and the stirring gear 355 is rotated through the first transmission gear 356. A transmission gear 356 and a second transmission gear 357 drive the gear ring 3523 to rotate, that is, the stirring seat 352 and multiple stirring rods 351 rotate, thereby realizing the first stirring action; when the stirring drive unit 36 ​​fixes the shaft gear 359 and drives the action gear 358 to rotate at the same time, the eccentric disk 3531 rotates, the first transmission gear 356 and the second transmission gear 357 rotate with the eccentric disk 3531, and the stirring gear 355 does not rotate. The gear ring 3523 is driven by the first transmission gear 356 and the second transmission gear 357 to rotate in the opposite direction of the eccentric disk 3531, that is, the stirring seat 352 and the multiple stirring rods 351 revolve around the eccentric axis without rotating, thereby forming a cross stirring action with another stirring unit 35.

[0028] For example, please refer to Figure 7-8The stirring drive unit 36 ​​includes a stirring drive motor 361, which is arranged on one side of a driving shell 362, and the other side of the driving shell 362 is arranged at one end of the telescopic barrel 33. The output end of the stirring drive motor 361 is coaxially connected to a stirring motor gear 368, and both sides of the stirring motor gear 368 are respectively engaged with an action transmission gear 363. A plurality of the action transmission gears 363 are respectively coaxially connected to one end of a hexagonal transmission shaft 364, and a plurality of the hexagonal transmission shafts 364 are all rotatably connected to the middle part of the driving shell 362. The middle parts of the plurality of the hexagonal transmission shafts 364 are respectively slidably connected to an action switching gear 365, and the plurality of the action switching gears 365 are all arranged in the middle part of an action switching block 366. The action gear 358 and the shaft gear 359 are both arranged in the middle part of the action switching block 366. The two ends of the action switching block 366 are respectively arranged at the execution ends of a plurality of telescopic cylinders 367, and the plurality of telescopic cylinders 367 are respectively arranged at the At both ends of the driving housing 362, the action switching block 366 includes a movable gear bin 3661, and gear blocks 3662 are respectively provided in the middle of both sides of the movable gear bin 3661. A plurality of the action switching gears 365 are arranged inside the movable gear bin 3661. This design drives the two action switching gears 365 to rotate respectively through the stirring driving motor 361 via the stirring motor gear 368, the two action transmission gears 363 and the two hexagonal transmission shafts 364; the two telescopic cylinders 367 push the movable gear bin 3661 to move, toggle the positions of the two action switching gears 365, cooperate with the gear block 3662 to engage the action gear 358 to fix it, and the two action switching gears 365 engage the shaft gear 359 to drive it to rotate; the two telescopic cylinders 367 pull the movable gear bin 3661 to move, toggle the positions of the two action switching gears 365, cooperate with the gear block 3662 to engage the shaft gear 359 to fix it, and the two action switching gears 365 engage the action gear 358 to drive it to rotate.

[0029] For example, please refer to Figure 9-10 The rotary barrel unit 4 includes a swivel 41, which is rotatably connected to one end of the mixing barrel 3, one side of the swivel 41 is provided at one end of a movable crank arm 42, the other end of the movable crank arm 42 is hingedly connected to one end of a swivel arm 43, the swivel arm 43 is rotatably connected to one side of the upper part of a rotary barrel support 44, and a reduction motor 45 is provided on the other side of the rotary barrel support 44, the output end of the reduction motor 45 is coaxially connected to the swivel arm 43, the center of the swivel 41 shall not be on the rotation axis of the swivel arm 43, this design drives the swivel arm 43 to rotate through the reduction motor 45, and then drives the movable crank arm 42 to rotate, and then drives one end of the mixing barrel 3 to shake through the swivel 41, and the rotary barrel unit 4 at the other end performs symmetrical synchronous motion, and under the action of the universal shaft 2, the entire mixing barrel 3 shakes, further accelerating the uniformity of the material inside.

[0030] The operating principle of the mixing device is as follows: first, the rotating barrel unit 4 is driven to move by the bidirectional linear guide base 5, thereby stretching the mixing barrel 3 to maximize the volume of the barrel, opening the feeding port, and adding materials to the mixing barrel 3 through an external feeding device. According to the amount of the material, the rotating barrel unit 4 is driven to move by the bidirectional linear guide base 5 to control the telescopic amount of the telescopic barrel 33, so that the volume of the barrel is suitable for the mixing of the materials in the barrel; start mixing, and there are three mixing modes for mixing; the first is rotary mixing, the two telescopic cylinders 367 push the movable gear bin 3661 to move, and the two action switching gears are turned The position of the wheel 365 is matched with the gear block 3662 to engage the action gear 358 to fix it, and the two action switching gears 365 engage the shaft gear 359 to drive it to rotate; then the stirring shaft 354 and the stirring gear 355 rotate, and the gear ring 3523 is driven to rotate through the first transmission gear 356 and the second transmission gear 357, that is, the stirring seat 352 and the multiple stirring rods 351 rotate; then cross stirring is performed, the two telescopic cylinders 367 pull the movable gear bin 3661 to move, and the position of the two action switching gears 365 is adjusted, and the gear block 3662 engages the shaft gear 359 to drive it to rotate; The wheel 359 is fixed, and the two action switching gears 365 engage the action gear 358 to drive it to rotate; then the eccentric disk 3531 rotates, and the first transmission gear 356 and the second transmission gear 357 rotate with the eccentric disk 3531, and the stirring gear 355 does not rotate. The gear ring 3523 of the first transmission gear 356 and the second transmission gear 357 rotates in the opposite direction of the eccentric disk 3531, that is, the stirring seat 352 and the multiple stirring rods 351 revolve around the eccentric axis without rotating, thereby forming a cross stirring action with another stirring unit 35; finally, the barrel body is shaken, and the stirring action is performed by the stirring gear 3523. The reduction motor 45 drives the rotating arm 43 to rotate, which in turn drives the movable crank arm 42 to rotate, and then drives one end of the mixing barrel 3 to shake through the rotating ring 41, and the rotating barrel unit 4 at the other end performs symmetrical synchronous movement. Under the action of the universal joint 2, the entire mixing barrel 3 shakes, and when the barrel body is stretched longer, the materials at both ends are allowed to merge with each other, further accelerating the uniformity of the internal materials; the shaking of the barrel body can be combined with the first two stirring modes to further enhance the stirring effect; during the stirring process, materials can be continuously added, and the volume of the mixing barrel 3 can be continuously changed during the delivery process according to the amount of added materials.

[0031] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A clean, low-VOC water-based glass bottle baking coating, characterized in that: It includes component A: water-based acrylic dispersion, pH regulator, water-based dispersant, water-based defoamer, deionized water, fumed silica, carbon black pigment powder, iron oxide red pigment powder, water-based amino resin, water-based substrate wetting agent, non-ionic wetting and molecular defoamer, water-based matting powder; component B: adhesion promoter; component C: ionized water diluent.

2. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 1, characterized in that: The following steps are involved: S1. Under stirring conditions, 40.0-60.0 parts by weight of an aqueous acrylic dispersion, 0.1-0.5 parts by weight of a pH regulator, 0.5-2.0 parts by weight of an aqueous dispersant, 0.1-0.5 parts by weight of a defoamer, 10-20 parts by weight of deionized water, 0.01-0.1 parts by weight of fumed silica, 3-5 parts by weight of carbon black pigment powder, 5.0-10.0 parts by weight of iron oxide red pigment powder, and finally 15.0-20.0 parts by weight of deionized water were used to wash the inner wall of the container and stirred evenly; S2. Grind with a grinder to a fineness of less than 15µm; S3. Continue to add 8.0-12.0 parts by weight of water-based amino resin, 0.2-0.5 parts of water-based substrate wetting agent, 0.3-0.8 parts of non-ionic wetting and molecular defoaming agent into the color paste, add 1.0-2.0 parts by weight of water-based matting powder while stirring, add 15-25 parts by weight of deionized water in due time according to the viscosity of the coating during the feeding process, and finally confirm the pH value of the coating again, and fine-tune the pH value to 8.2-8.5 according to the actual data; after adding, stir and mix thoroughly, and then filter and package with a 300-mesh filter to obtain a single-coated coffee-colored water-based glass bottle baking paint coating component A; S4. The adhesion promoter of component B is an epoxy silane coupling agent and does not need to be prepared; The ion water diluent of component S5.C is pure water.

3. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 2, characterized in that: The stirring device comprises a main support (1), one side of the main support (1) is rotatably connected to a universal shaft (2), a stirring barrel (3) is provided in the middle of the universal shaft (2), the top of the stirring barrel (3) is connected to an external feeding device via a hose, and the bottom of the stirring barrel (3) is connected to an external material receiving device via a hose, and both ends of the stirring barrel (3) are rotatably connected to rotating barrel units (4), and a plurality of rotating barrel units (4) are arranged at both ends of a bidirectional linear guide base (5).

4. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 3, characterized in that: The stirring barrel (3) comprises a main barrel body (31), the top of the main barrel body (31) is connected to an external feeding device through a hose, and the bottom of the main barrel body (31) is connected to an external material receiving device through a hose, the middle part of the main barrel body (31) is rotatably connected to the middle part of the universal shaft (2), and telescopic limit rings (32) are respectively provided at both ends of the main barrel body (31), the interior of the main barrel body (31) is slidably connected to a plurality of telescopic barrels (33), one end of the plurality of telescopic barrels (33) is respectively provided with a shaking barrel limit ring (34), and the plurality of shaking barrel limit rings (34) are respectively rotatably connected to the execution ends of the plurality of rotating barrel units (4), the middle part of one end of the plurality of telescopic barrels (33) is respectively rotatably connected to the stirring unit (35), one end of the plurality of stirring units (35) is respectively arranged at the middle part of the stirring drive unit (36), and the plurality of stirring drive units (36) are respectively arranged at one end of the plurality of telescopic barrels (33).

5. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 4, characterized in that: The stirring unit (35) comprises a plurality of stirring rods (351), one end of each of the plurality of stirring rods (351) is disposed on one side of a stirring seat (352), the interior of the stirring seat (352) is rotatably connected to a stirring action disk (353), the middle of the stirring action disk (353) is rotatably connected to a stirring shaft (354), one end of the stirring shaft (354) is coaxially connected to a stirring gear (355), one side of the stirring gear (355) is meshedly connected to one side of a first transmission gear (356), and the other side of the first transmission gear (356) is meshedly connected to a second transmission gear ( The stirring seat (352) is connected to one side of the stirring seat (352), and the other side of the second transmission gear (357) is engaged with the inner side of the stirring seat (352). The stirring gear (355), the first transmission gear (356) and the second transmission gear (357) are all arranged inside the stirring action disk (353). The middle part of the stirring action disk (353) is coaxially connected to the action gear (358). One end of the stirring shaft (354) is coaxially connected to the shaft gear (359). The action gear (358) and the shaft gear (359) are both arranged in the middle part of the stirring drive unit (36).

6. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 5, characterized in that: The stirring seat (352) comprises a seat plate (3521), one side of which is provided with a plurality of stirring rods (351), and the other side of which is provided with an annular slide groove (3522), the inner side of which is provided with a toothed ring (3523), and the toothed ring (3523) is engaged with the other side of the second transmission gear (357); the stirring action plate (353) comprises an eccentric plate (3531), a middle side of which is provided with a hollow shaft (3532), and the hollow shaft (3532) is provided with a hollow shaft (3533). The middle part of the spindle (3532) is rotatably connected to the middle part of one end of the telescopic barrel (33); the inside of the hollow shaft (3532) is rotatably connected to the middle part of the stirring shaft (354); one end of the hollow shaft (3532) is coaxially connected to the action gear (358); the stirring gear (355), the first transmission gear (356) and the second transmission gear (357) are all arranged inside the eccentric disk (3531); and a gear engagement opening (3533) is provided on one side of the eccentric disk (3531).

7. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 6, characterized in that: The stirring drive unit (36) comprises a stirring drive motor (361), the stirring drive motor (361) being arranged on one side of a driving housing (362), the other side of the driving housing (362) being arranged on one end of the telescopic barrel (33), the output end of the stirring drive motor (361) being coaxially connected to a stirring motor gear (368), the two sides of the stirring motor gear (368) being respectively engaged with action transmission gears (363), the plurality of action transmission gears (363) being respectively coaxially connected to one end of a hexagonal transmission shaft (364), the plurality of hexagonal transmission shafts (364) being respectively connected to one end of the hexagonal transmission shaft (364), and the plurality of hexagonal transmission shafts (364) being respectively connected to one end of the hexagonal transmission shaft (364). 4) are rotatably connected to the middle part of the drive housing (362), the middle parts of the multiple hexagonal transmission shafts (364) are respectively slidably connected to the action switching gears (365), the multiple action switching gears (365) are all arranged in the middle part of the action switching block (366), the action gear (358) and the shaft gear (359) are both arranged in the middle part of the action switching block (366), the two ends of the action switching block (366) are respectively arranged at the execution ends of the multiple telescopic cylinders (367), and the multiple telescopic cylinders (367) are respectively arranged at the two ends of the drive housing (362).

8. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 7, characterized in that: The action switching card block (366) comprises a movable gear chamber (3661), and gear card blocks (3662) are respectively provided in the middle of two sides of the movable gear chamber (3661), and the plurality of action switching gears (365) are all arranged inside the movable gear chamber (3661).

9. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 3, characterized in that: The rotary barrel unit (4) comprises a rotating ring (41), the rotating ring (41) being rotatably connected to one end of the mixing barrel (3), one side of the rotating ring (41) being arranged at one end of a movable crank arm (42), the other end of the movable crank arm (42) being hingedly connected to one end of a rotating arm (43), the rotating arm (43) being rotatably connected to one side of an upper portion of a rotary barrel support (44), the other side of the rotary barrel support (44) being provided with a reduction motor (45), the output end of the reduction motor (45) being coaxially connected to the rotating arm (43).

10. The method for preparing a odorless, low-VOC water-based glass bottle baking coating according to claim 9, characterized in that: The center of the rotating ring (41) must not be located on the rotation axis of the rotating arm (43).

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