Box for uniformly dispersing and automatically preparing multi-size powder

Abstract

The invention belongs to the field of multi-size powder uniform dispersion and automatic configuration equipment, and discloses a multi-size powder uniform dispersion and automatic configuration box, a shell part of the box is composed of a motor gear, a worm gear, a motor, a controller, a three-turbine worm, a box body shell, a lower supporting plate, a universal wheel lock, an upper supporting plate, universal wheels and a motor fixing seat; the interior of the whole box body is composed of three parts, wherein the crushing cone and the grinding tank are different, and the other parts are the same. Each part is mainly composed of a power transmission system, a crushing system, a multi-stage grinding system, a powder preparation system, a stirring system, an ultrasonic system, a gas conveying pipeline and a supporting mechanism. According to the invention, dispersion of one or more kinds of powder can be realized, automatic preparation of a coating solution of various particles is realized, coating preparation steps are simplified, and uncontrollable factor errors caused by manual operation are reduced. The equipment is simple in structure and convenient to use, and powder particles in a coating solution can have high dispersity and good uniformity.

Description

Technical Field

[0001] The present invention belongs to but is not limited to the technical field of equipment for uniformly dispersing and automatically configuring multi-sized powders, and in particular relates to a box for uniformly dispersing and automatically configuring multi-sized powders. Background Art

[0002] With the rapid development of surface coating technology and laser surface modification technology, laser surface alloying has become an important means to improve material performance. It can not only improve the hardness, corrosion resistance and wear resistance of materials, but also improve the dimensional accuracy of the material surface. However, with the continuous improvement of part performance and surface quality requirements, traditional particle spraying technology is prone to problems such as uneven distribution of alloy layers, large differences in surface roughness and low flatness during the alloying process, which seriously affect the mechanical properties of the coating. At present, the dispersion and configuration of coating powder particles still mainly rely on simple stirring devices, and the uniformity of dispersion is difficult to ensure, which is particularly obvious in the process of multi-particle mixing. At the same time, the degree of automation of the stirring process is low, the operation steps are complicated, and the errors caused by manual operation further aggravate this problem.

[0003] Existing particle dispersion technologies usually use centrifugal technology or grinding technology, but they cannot achieve full dispersion of nano-scale powders. In addition, existing methods lack unified and precise control methods when dispersing multiple particles, and cannot achieve automated configuration of coating solutions. Multiple steps are required from powder stirring to coating solution configuration, including mechanical stirring of adding powder, dispersant and binder. The overall process has a low degree of automation, cumbersome operation, and is easily interfered by human factors, resulting in large uncontrollable factors in the dispersion effect and solution uniformity, making it difficult to meet the needs of high-quality coatings.

[0004] In view of the shortcomings of the prior art, the present invention starts from the phenomenon and principle of particle adhesion, gradually eliminates the adhesion between particles, and thus achieves full dispersion of micron and nanoparticles. Through innovative dispersion technology and automated configuration process, it is possible to simultaneously achieve uniform dispersion of multiple particles and automated preparation of coating solutions. This method effectively improves dispersion uniformity, significantly reduces manual operation errors, and provides a solid technical guarantee for subsequent high-quality uniform powder spreading and spraying. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a box for uniformly dispersing and automatically distributing powders of multiple sizes.

[0006] The present invention is achieved in this way. A multi-size powder uniform dispersion and automatic configuration box is characterized in that the multi-size powder uniform dispersion and automatic configuration box, the outer shell of the box is composed of a motor gear, a worm gear, a motor, a controller, a three-turbine worm, a box shell, a lower support plate, a universal wheel lock, an upper support plate, a universal wheel, and a motor fixing seat; the entire box interior is composed of three parts of "different crushing cones and grinding jars, and the rest of the parts are the same", the only difference between the parts is the size of the crushing cone and the grinding jar, and the rest of the parts are the same, mainly consisting of a power transmission system, a crushing system, a multi-stage grinding system, a powder configuration system, a stirring system, an ultrasonic system, an air supply pipeline and a support mechanism.

[0007] Furthermore, the motor is fixed on the upper support plate through a motor fixing seat, and transmits power to the three-turbine worm gear through the motor gear and the worm gear. The universal wheel is equipped with a universal wheel lock and is fixed on the lower support plate. A controller is installed on the upper support plate to control the working process of the entire box.

[0008] Furthermore, the power transmission system includes a three-turbine worm, a spiral gear, a grinder gear, and a clutch mechanism; the crushing system includes a crushing tank, a rotating impact column, and a crushing cone a; the multi-stage grinding system includes a multi-stage grinding tank shell and a multi-stage grinding tank; the powder configuration system includes a control switch, a configuration tank, and a porous material distribution ball; the stirring system includes a stirring motor, a stirrer shaft, a large stirring blade, a small stirring blade, and a stirring tank; the ultrasonic system includes a five-way valve and an ultrasonic generator; the air delivery pipeline includes a feed inlet, an exhaust pipe, a five-way valve, and a discharge pipe; the support mechanism includes a support frame and a motor fixing frame.

[0009] Furthermore, the three-turbine worm is installed on the casing shell, and the helical gear is meshed with the transmission grinder gear to transmit and cut off the power transmission through the clutch mechanism, and the clutch mechanism is installed on the crushing cone; the crushing cone is installed at the center position of the upper surface of the crushing jar, and a rotating impact column is installed on the axis of the crushing cone to preliminarily crush the powder delivered in; the multi-stage grinding system consists of a multi-stage grinding jar shell and a multi-stage grinding jar, the upper conical surface of the multi-stage grinding jar and the inner surface of the grinding jar shell gradually decrease, the middle part is parallel to the inner surface of the grinding jar shell, and the angle between the lower cone and the inner surface of the grinding jar shell gradually decreases again to achieve the effect of multi-stage grinding, and the multi-stage grinding jar, the multi-stage grinding jar and the multi-stage grinding jar have the same structure, except that the cone angle of each multi-stage grinding jar is also the same.

[0010] Furthermore, the control switch can be opened and closed. When the switch is opened, the dispersed and ground powder can be discharged directly without passing through the configuration tank. When the switch is closed, the powder enters the configuration tank. The porous dividing ball is connected to the conveying pipeline after grinding. The porous dividing ball is inserted into the lower part of the configuration tank. The porous dividing ball is lower than the liquid surface so as to disperse the powder into the configuration tank. A booster blade is installed in the pipeline at the lower end of the configuration tank. The protective gas entering the configuration tank with the powder is connected to the five-way valve from the exhaust pipe and then enters the front end of the ultrasonic generator. The five-way valve has a port for pressure relief.

[0011] Furthermore, in the stirring system, the stirring motor is fixed on the motor fixing frame, and the stirring shaft is connected with a large stirring blade and a small stirring blade to fully stir and disperse. The powder prepared in each pipeline enters the stirring tank for stirring. The outlet of the stirring tank is connected to the discharge pipe, and the five-way valve gathers the protective gas in the exhaust pipe to the front end of the ultrasonic generator.

[0012] Furthermore, the multi-size powder uniform dispersion and automatic configuration box realizes the crushing, dispersion and grinding functions of the powder, and the steps are as follows:

[0013] The granular powder to be dispersed is transported to the feed inlet pipe together with the protective gas, accelerated by gravity, and rushed out of the end of the feed inlet pipe. Due to the effect of inertia, it collides with the rotating impact column to disperse the large and sticky particles.

[0014] The dispersed particles fall into the crushing tank and onto the rotating crushing cone a. The powder is subjected to continuous shear force between the crushing cone a and the inner wall of the crushing tank, which destroys the agglomeration of the powder and disperses it. Only particles or particle agglomerates that meet the size can pass through the gap channel at the bottom of the crushing cone a and the crushing tank.

[0015] Under the pressure of the protective gas, the dispersed particles enter the multi-stage grinding jar, which is at a certain angle to the outer shell of the multi-stage grinding jar. The angle formed by the upper cone and the inner wall of the jar shell gradually decreases, which means that the powder size is gradually ground smaller. The middle part of the multi-stage grinding jar is parallel to the inner wall of the multi-stage grinding jar shell in the vertical direction, so that the powder dropped from the upper conical surface can be ground fully. The lower conical surface of the multi-stage grinding jar and the inner surface of the multi-stage grinding jar shell also form a certain angle, and the angle gradually decreases. When the powder enters the lower conical surface for grinding, the size will become smaller, which is the target size. The dispersed and ground powder is controlled by the control switch. When the control switch is turned on, the powder is transported out of the box, thus completing the crushing, dispersion and grinding of the powder.

[0016] The multi-size powder uniform dispersion and automatic configuration box can simultaneously realize the dispersion processing of one or more different types of powder particles with different sizes:

[0017] Powder and protective gas enter from each feed inlet, pass through the crushing and grinding system, and the multi-stage grinding jar has the same structure as the multi-stage grinding jar, except that the angle formed by each grinding jar and the inner wall of the grinding jar shell is different, thereby controlling the grinding size. Therefore, three sizes of powder can be dispersed at the same time.

[0018] Furthermore, the multi-size powder uniform dispersion and automatic configuration box realizes the automatic configuration of coating powder:

[0019] The control switch is turned on and off, and the ground and dispersed powder enters the porous dividing ball. The powder is evenly dispersed into the preparation tank from the small holes of the dividing ball. The solution required for preparation enters from the one-way valve. When coating powder needs to be prepared, add the solution to the preparation tank first. After the liquid level covers the porous dividing ball, the feeding air inlet is used for feeding and air intake. The powder passes through the porous dividing ball and enters the solution, while the protective gas is discharged into the exhaust pipe. The prepared coating solution is transported to the mixing tank for mixing through the booster blades in the pipeline. The mixing tank is equipped with a uniformity detection sensor and a large stirring blade. The blades and small stirring blades further break up and homogenize the powder coating solution. When the uniformity detection sensor shows that it meets the specified requirements, the electric control switch is turned on, and the configured coating solution enters the front end of the discharge pipe. At this time, the protective gas at the end of the exhaust pipe also enters the front end of the discharge pipe, which is slightly closer to the front end of the ultrasonic generator. The configured coating solution undergoes cavitation effect after passing through the ultrasonic generator. The addition of the protector intensifies the cavitation, which better disperses the powder particles in the coating and finally discharges the box from the tail end of the discharge pipe to complete the automatic configuration of the coating powder.

[0020] The present invention also provides a method for uniformly dispersing and automatically configuring powders of multiple sizes, comprising the following steps:

[0021] S1: The powder to be processed is transported to the feed inlet pipe together with the protective gas through the feed inlet port. Under the action of gravity, the powder collides with the rotating impact column to achieve preliminary dispersion.

[0022] S2: The initially dispersed powder falls into the crushing tank and is subjected to shear force between the crushing cone and the inner wall of the crushing tank, causing the powder to be further crushed and dispersed into particles of the required size.

[0023] S3: Particles that meet the size enter the multi-stage grinding system through the bottom gap and are further ground at gradually decreasing grinding angles in the multi-stage grinding jar to achieve the required powder size.

[0024] Further, the method further comprises the following steps:

[0025] S4: When the control switch is in the closed state, the ground powder enters the preparation tank through the conveying pipe and is evenly dispersed in the preparation liquid in the preparation tank through the porous distribution balls.

[0026] S5: The liquid level is configured to be higher than the porous distribution balls so that the powder can be fully and evenly dispersed in the liquid.

[0027] Further, the automated configuration steps of the coating powder are included:

[0028] S6: The prepared coating solution is transported to the stirring tank, and the stirring motor in the stirring system is started. The large stirring blade and the small stirring blade stir the coating solution until the uniformity detection sensor confirms that the solution is evenly dispersed.

[0029] Furthermore, the method further comprises the step of using ultrasound to assist in dispersing the coating powder:

[0030] S7: The uniform coating solution is transported to the front end of the ultrasonic generator through the discharge pipe, and the cavitation effect of the ultrasonic wave is used to further disperse the powder particles, so that the coating solution can achieve an ideal uniform dispersion effect at the tail end of the discharge pipe.

[0031] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0032] First, the present invention eliminates the agglomeration of particles by designing a plurality of dispersion modes in an elimination order, thereby eliminating the agglomeration of particles fundamentally;

[0033] The present invention includes collision dispersion, multi-stage grinding dispersion and ultrasonic cavitation dispersion, especially multi-stage grinding dispersion, which can linearly disperse particle agglomerates of different sizes step by step, and can effectively improve the dispersion degree of agglomerated particles;

[0034] The present invention can automatically configure the coating solution, improve the configuration accuracy and efficiency, and reduce the labor intensity;

[0035] The present invention has two functions in one machine, which can disperse particles and discharge them from a single discharge port, and can also disperse and configure the solution required for spraying in one machine.

[0036] The present invention can simultaneously carry out dispersion processing of one or more powder particles of different particle types and sizes;

[0037] The present invention can evenly stir and detect the uniformity of various powders, ensuring that the particles of various powders tend to be evenly distributed;

[0038] The equipment of the present invention is easy to move and has high flexibility.

[0039] Second, the power transmission system composed of the motor gear 1, the worm gear 2 and the three-turbine worm 5 in the present invention solves the problems of uneven power and high energy consumption in traditional mixing equipment. Through the efficient transmission structure, the system can provide stable and accurate power output to ensure uniform processing of powder in the crushing cone and the grinding jar. In addition, the crushing cone and the grinding jar solve the problems of particle agglomeration being difficult to eliminate and uneven particle dispersion in the prior art, and their multi-size design adapts to the processing requirements of powders of different specifications. The controller 4 solves the problems of low automation and much manual intervention in equipment operation, and realizes an efficient and accurate dispersion process through real-time monitoring and intelligent regulation.

[0040] By introducing a multi-module design of crushing cones and grinding tanks, the equipment significantly improves the dispersion effect of micron- and nano-sized particles and effectively avoids particle agglomeration. Its multi-size modules can simultaneously process powders of different particle sizes, improving the applicability of the equipment. In addition, the optimization of the power transmission system reduces energy loss during the mixing process, ensuring that the equipment remains stable under long-term high-load operation. The entire dispersion process is highly automated, which greatly reduces errors and efficiency losses caused by manual operations.

[0041] The present invention realizes automatic parameter adjustment and process control through the controller 4, which significantly simplifies the powder dispersion and configuration operation process. The user only needs to set the initial parameters, and the equipment can complete the whole process of powder dispersion, mixing and collection, reducing the complexity of operation. At the same time, the built-in real-time monitoring function of the system ensures the high consistency of particle uniformity during the dispersion process, providing a high-quality material foundation for subsequent uniform spraying or powder spreading. This technological advancement effectively meets the industrial demand for high-performance coating processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is an external structural diagram of a multi-size powder uniform dispersion and automatic configuration box provided by an embodiment of the present invention;

[0043] Figure 2 It is a diagram of the internal structure of a box body of a multi-size powder uniform dispersion and automatic configuration box provided by an embodiment of the present invention and a partial enlarged diagram;

[0044] Figure 3 It is a diagram of the internal structure and a partial enlarged diagram of the crushing and grinding system provided by an embodiment of the present invention;

[0045] In the figure: 1-motor gear; 2-worm gear; 3-motor; 4-controller; 5-three-turbine worm; 6-box shell; 7-lower support plate; 8-universal wheel lock; 9-upper support plate; 10-universal wheel; 11-motor fixing seat; 12-feeding air inlet; 13-helical gear; 14-grinder gear; 15-crushing tank; 16-support frame; 17-multi-stage grinding tank shell; 18-check valve; 19-exhaust pipe; 20-five-way valve; 21-discharge pipe; 22-stirring motor; 23 -motor fixing bracket; 24-agitator shaft; 25-control switch; 26-configuration tank; 27-large agitator blade; 28-small agitator blade; 29-agitator tank; 30-ultrasonic generator; 31-multi-stage grinding tank; 32-multi-stage grinding tank; 33-crushing cone a; 34-crushing cone b; 35-crushing cone c; 36-multi-stage grinding tank; 37-porous material distribution ball; 38-assisting blade; 39-rotating impact column; 40-clutch mechanism; 41-uniformity detection sensor; 42-electric control switch. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] The multi-size powder uniform dispersion and automatic configuration box of the embodiment of the present invention mainly realizes uniform dispersion of powder, automatic grinding and configuration of coating powder through the coordinated work of multiple system modules.

[0048] 1. Preliminary crushing and dispersion of powder: The device delivers powder and protective gas to the crushing system through the feed inlet pipe. The powder collides with the rotating impact column to achieve preliminary crushing, thereby dispersing larger bonded particles. The dispersed particles enter the crushing tank and are subjected to continuous shear force between the crushing cone and the inner wall of the tank, further destroying the agglomeration of the powder, making the powder reach a specific size, and enter the next process through the gap channel between the crushing cone and the bottom of the tank.

[0049] 2. Multi-stage grinding system: The powder after preliminary crushing enters the multi-stage grinding tank under the pressure of protective gas. The inner wall of the multi-stage grinding tank is designed into three different angle areas: upper, middle and lower, to further grind the powder particles. The gradually decreasing angle of the upper conical surface helps to gradually reduce the size of the powder. The parallel area in the middle ensures that the powder is fully ground in this section. The gradually decreasing angle of the lower conical surface further refines the powder, and finally makes the particles reach the target size. By controlling the switch, the ground powder can be discharged from the box, and the crushing, dispersion and multi-stage grinding process of the powder is completed.

[0050] 3. Multi-channel dispersion of powders of different sizes: The device can process powders of different types and sizes through multiple air inlets and independent feed channels. The angle design of the multi-stage grinding jars enables it to adapt to the dispersion and grinding requirements of different particles. Each grinding jar has a different angle with the inner wall of the jar shell to meet the dispersion requirements of three different sizes of powders. This allows different powders to achieve the ideal dispersion effect in their respective grinding jars and realizes the synchronous dispersion of powders of multiple sizes.

[0051] 4. Automatic configuration of coating powder: When the control switch is turned off, the ground powder enters the configuration tank through the porous distribution ball and is fully mixed with the liquid configuration solution to form coating powder. After the liquid surface covers the porous distribution ball, the powder enters the solution with the help of protective gas and discharges excess gas. The stirring blades in the stirring system further disperse the coating powder to ensure that the uniformity of the powder meets the set standard. When the detection sensor shows that the configuration meets the requirements, the powder solution enters the discharge pipe. During the discharge process, the cavitation effect is induced by the ultrasonic generator, so that the powder is dispersed more evenly in the coating solution, and finally a uniform coating powder solution is formed and discharged from the box from the discharge port, completing the automatic configuration process of the coating powder.

[0052] like Figure 1 As shown, an embodiment of the present invention provides a multi-size powder uniform dispersion and automatic configuration box, the outer shell of the box is composed of a motor gear 1, a worm gear 2, a motor 3, a controller 4, a three-turbine worm 5, a box shell 6, a lower support plate 7, a universal wheel lock 8, an upper support plate 9, a universal wheel 10, and a motor fixing seat 11. The motor 3 is fixed to the upper support plate 9 through the motor fixing seat 11, and the power is transmitted to the three-turbine worm 5 through the motor gear 1 and the worm gear 2. The universal wheel 10 has a universal wheel lock 8 and is fixed to the lower support plate 7. The upper support plate 9 is equipped with a controller 4 for controlling the working process of the entire box.

[0053] The interior of the entire box is composed of three parts with "different crushing cones and grinding jars but the rest of the parts are the same". The only difference between the parts is the size of the crushing cone and the grinding jar, and the rest of the parts are the same. One of the parts is now explained.

[0054] The shell structure of the multi-size powder uniform dispersion and automatic configuration box provided by the present invention is composed of a motor gear 1, a worm gear 2, a motor 3, a controller 4, a three-turbine worm 5, a box shell 6, a lower support plate 7, a universal wheel lock 8, an upper support plate 9, a universal wheel 10, a motor fixing seat 11 and other components. The motor 3 is fixed to the upper support plate 9 through the motor fixing seat 11, and the power is transmitted from the motor gear 1 to the worm gear 2, and then transmitted to the rotating device inside the box through the three-turbine worm 5, providing efficient and stable power support. The universal wheel 10 arranged at the bottom of the box is provided with a universal wheel lock 8, which is convenient for the equipment to be moved and fixed between different workstations and realize flexible deployment.

[0055] There are three independent dispersion modules inside the box, each of which consists of a crushing cone and a grinding jar. These modules differ only in size and are suitable for the dispersion of powders with different particle size ranges. The crushing cone is designed to initially crush the agglomerated particles and reduce the adhesion between particles; the grinding jar further disperses the powder efficiently to ensure the uniformity of the particles. The multi-size configuration of the modules allows the equipment to process powders of different specifications at the same time, improving work efficiency and applicability.

[0056] The controller 4 equipped with the equipment realizes intelligent control of the entire working process through integrated software, including speed adjustment of the motor 3, grinding time setting and rotation direction switching of the worm gear 5. The controller 4 also supports real-time monitoring of key parameters in the dispersion process, such as the distribution uniformity of powder particles and the operating status of the equipment. The automatic configuration function of multiple modules working in parallel further reduces the need for manual intervention and improves the efficiency and stability of equipment operation.

[0057] After the equipment is started, the motor 3 drives the crushing cone and the grinding tank through the gear 1 and the worm gear 2 to start running. After the powder enters the crushing cone, it is quickly crushed and enters the grinding tank for fine dispersion. The controller 4 automatically adjusts the power output and grinding time according to the set parameters to ensure that the powder is evenly dispersed. After the dispersion is completed, the equipment automatically transports the processed powder to the collection container to achieve seamless operation. The collaborative work of multiple dispersion modules enables the equipment to meet the processing needs of powders of various particle sizes while ensuring the consistency of the dispersion effect.

[0058] Combination Figure 2 and Figure 3, which is the internal structure of the box structure, and is also the main part of the multi-size powder uniform dispersion and automatic configuration box, mainly composed of power transmission system 5, 13, 14, 40, crushing system 15, 39, 33, multi-stage grinding system 17, 31, powder configuration system 25, 26, 37, stirring system 22, 24, 27, 28, 29, ultrasonic system 20, 30, gas pipeline 12, 19, 20, 21 and support mechanism 16, 23. The three-turbine worm 5 is installed on the box shell 6, the helical gear 13 is meshed with the transmission grinder gear 14, and the power transmission is transmitted and cut off through the clutch mechanism 40. The clutch mechanism 13 is installed on the crushing cone 33. The crushing cone 33 is installed at the center of the upper surface of the crushing tank 15, and a rotating impact column 39 is installed on the axis of the crushing cone 15 to preliminarily crush the powder transported in. The multi-stage grinding system consists of a multi-stage grinding jar shell 17 and a multi-stage grinding jar 31. The angle between the upper conical surface of the multi-stage grinding jar 31 and the inner surface of the grinding jar shell 17 gradually decreases, the middle part is parallel to the inner surface of the grinding jar shell 17, and the angle between the lower cone and the inner surface of the grinding jar shell 17 gradually decreases again, thereby achieving the effect of multi-stage grinding. As shown in the partial enlarged view D, the multi-stage grinding jar 31, the multi-stage grinding jar 32 and the multi-stage grinding jar 36 have the same structure, except that the cone angles of the multi-stage grinding jars are also the same. The control switch 25 can be turned on and off. When the switch is on, the dispersed and ground powder can be directly discharged without passing through the configuration tank 26. When the switch is off, the powder enters the configuration tank 26. The porous material distribution ball 37 is connected to the conveying pipeline after grinding. The porous material distribution ball 37 is inserted into the lower part of the configuration tank 26. The porous material distribution ball 37 is lower than the liquid surface so as to disperse the powder into the configuration tank 26. A booster blade 38 is installed in the pipeline at the lower end of the configuration tank 26. The protective gas entering the configuration tank 26 with the powder is connected to the five-way valve 20 from the exhaust pipe 19 and then enters the front end of the ultrasonic generator 30, aggravating the cavitation effect. The five-way valve 20 has a port for pressure relief. In the stirring system, the stirring motor 22 is fixed on the motor fixing frame 23. The stirrer shaft 24 is connected with a large stirring blade 27 and a small stirring blade 28, which play a role in full stirring and dispersion. The powder prepared in each pipeline enters the stirring tank 29 for stirring. The outlet of the mixing tank 29 is connected to the discharge pipe 21, and the five-way valve 20 gathers the protective gas in the exhaust pipe 19 to the front end of the ultrasonic generator 30. At this point, the description of one component part of a multi-size powder uniform dispersion and automatic configuration box is completed. The other two component parts are only different in the crushing cone and the grinding tank, and the rest of the parts are the same.

[0059] The multi-size powder uniform dispersion and automatic configuration box realizes the crushing, dispersion and grinding functions of the powder. The steps are as follows:

[0060] The granular powder to be dispersed is transported to the feed air inlet pipe 12 together with the protective gas, accelerated by gravity, rushed out of the end of the feed air inlet pipe 12, collided with the rotating impact column 39 due to the effect of inertia, and the large cohesive particles were dispersed. The dispersed particles fell into the crushing tank 15 and fell on the rotating crushing cone 33a. The cone surface of the crushing cone a is covered with evenly distributed protrusions. There is a certain gap between the bottom of the crushing cone 33a and the crushing tank 15, such as Figure 3 As shown in the partial enlarged view E, under the action of centrifugal force and gravity, the powder is subjected to continuous shear force between the crushing cone 33a and the inner wall of the crushing tank 15, which destroys the agglomeration of the powder and disperses it. Only particles or particle agglomerates of the powder that meet the size can pass through the gap channel at the bottom of the crushing cone 33a and the crushing tank 15. Under the pressure of the protective gas, the dispersed particles enter the multi-stage grinding tank 31, as shown in FIG. Figure 3 As shown in the partial enlarged view D, the multi-stage grinding jar 31 is at a certain angle to the multi-stage grinding jar shell 17, and the angle formed by the upper cone and the inner wall of the jar shell gradually decreases, indicating that the powder size is gradually ground and becomes smaller. The middle part of the multi-stage grinding jar 31 is parallel to the inner wall of the multi-stage grinding jar shell 17 in the vertical direction, so that the powder ground and dropped from the upper conical surface is fully ground. The lower conical surface of the multi-stage grinding jar 31 and the inner surface of the multi-stage grinding jar shell 17 also form a certain angle, and the angle gradually decreases. When the powder enters the lower conical surface for grinding, the size will become smaller, which is the target required size. The dispersed and ground powder is controlled by the control switch 25. When the control switch is turned on, the powder is transported out of the box, and the crushing, dispersion and grinding of the powder are completed.

[0061] The multi-size powder uniform dispersion and automatic configuration box can realize the dispersion processing of one or more different types of powder particles of different sizes at the same time: the powder and the protective gas enter from each feed air inlet 12, pass through the crushing and grinding system, and the multi-stage grinding jar 31 has the same structure as the multi-stage grinding jar 32 and the multi-stage grinding jar 36, except that the angles formed by each grinding jar and the inner wall of the grinding jar shell are different, so as to control the grinding size, so that three sizes of powder can be dispersed at the same time.

[0062] The multi-size powder uniform dispersion and automatic configuration box realizes the automatic configuration of coating powder: the control switch 25 is turned off, the ground and dispersed powder enters the porous distribution ball 37, the powder is uniformly dispersed into the configuration tank 26 from the small holes of the distribution ball, and the solution required for configuration enters from the one-way valve 18. When it is necessary to configure the coating powder, the solution is first added to the configuration tank 26, and the liquid level covers the porous distribution ball 37, and then the feeding air is fed into the feed inlet 12, and the powder passes through the porous distribution ball 37 and enters the solution, and the protective gas is discharged into the exhaust pipe 19. The configured coating solution is transported to the stirring tank 29 through the booster blades 38 in the pipeline for stirring, and the stirring tank is A uniformity detection sensor 41 is provided, and a large stirring blade 27 and a small stirring blade 28 further break up and homogenize the powder coating solution. When the uniformity detection sensor 41 shows that it meets the specified requirements, the electric control switch is turned on, and the configured coating solution enters the front end of the discharge pipe 21. At this time, the protective gas at the end of the exhaust pipe 19 also enters the front end of the discharge pipe 21, and the position is slightly closer to the front end of the ultrasonic generator 31. The configured coating solution undergoes cavitation effect after passing through the ultrasonic generator 31. The addition of the protector intensifies the cavitation, thereby better dispersing the powder particles in the coating, and finally being discharged from the box body from the tail end of the discharge pipe 21, completing the automatic configuration of the coating powder.

[0063] First: the feeding mechanism and the rotating impact column designed in the present invention preliminarily achieve the dispersion of large agglomerates. The powder is accelerated by gravity and inertia under the push of the protective gas, and finally collides with the rotating impact column, thereby dispersing the large agglomerated particles and eliminating physical agglomerations.

[0064] Second: the particles after preliminary dispersion enter the crushing tank 15 and fall on the rotating crushing cone 33a. The conical surface of the crushing cone a is provided with evenly distributed protrusions. There is a certain gap between the bottom of the crushing cone 33a and the crushing tank 15. Under the action of centrifugal force and gravity, the powder is subjected to continuous shear force between the crushing cone 33a and the inner wall of the crushing tank 15, which destroys the agglomeration of the powder and disperses it, which will further disperse the particles. The first and second methods both use physical methods to eliminate the van der Waals force between the particles, thereby achieving the dispersion effect.

[0065] Third: under the pressure of the protective gas, the dispersed particles enter the multi-stage grinding jar 31, the multi-stage grinding jar 31 and the multi-stage grinding jar shell 17 are at a certain angle, and the angle formed by the upper cone and the inner wall of the jar shell gradually decreases, which means that the powder size is gradually ground and becomes smaller. The middle part of the multi-stage grinding jar 31 is parallel to the inner wall of the multi-stage grinding jar shell 17 in the vertical direction, so that the powder ground and dropped from the upper conical surface is fully ground. The lower conical surface of the multi-stage grinding jar 31 and the inner surface of the multi-stage grinding jar shell 17 also form a certain angle, and the angle gradually decreases. When the powder enters the lower conical surface for grinding, the size will become smaller, which is the target required size. The third step is to use the method of gradual grinding to eliminate some chemical bonding and physical bonding of the particles. Fourth: The ground and dispersed powder enters the porous distribution ball 37, and the powder is evenly dispersed from the small holes of the distribution ball into the configuration tank 26. The dispersant is added to the configuration tank 26, and the large stirring blade 27 and the small stirring blade 28 further break up and homogenize the powder coating solution. This step uses the dispersant and the rotating blade stirring (eliminating the electrostatic force and the liquid bridge force) to disperse the particles. Fifth: The configured coating solution enters the front end of the discharge pipe 21. At this time, the protective gas at the end of the exhaust pipe 19 also enters the front end of the discharge pipe 21, and the position is slightly closer to the front end of the ultrasonic generator 31. The configured coating solution passes through the ultrasonic generator 31 and undergoes cavitation. The addition of the protector intensifies the cavitation, thereby better dispersing the powder particles in the coating. This step uses the cavitation effect of the bubbles to disperse the particles, and the particles are more evenly distributed in the solution.

[0066] From a theoretical analysis, the above five steps of distribution start from eliminating the intermolecular force of physical binding, the van der Waals force, to eliminating electrostatic force and liquid bridge force, and finally to further disperse and evenly distribute the particles through airflow, which is theoretically feasible.

[0067] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A box for uniformly dispersing and automatically distributing powders of various sizes, characterized in that: The outer shell of the box body is composed of a motor gear, a worm gear, a motor, a controller, a three-turbine worm, a box body shell, a lower support plate, a universal wheel lock, an upper support plate, a universal wheel, and a motor fixing seat. The motor is installed on the upper support plate through the motor fixing seat, and the motor gear is meshed and connected with the worm gear to transmit power to the three-turbine worm, thereby driving the crushing and grinding system in the box body to operate.

2. The multi-size powder uniform dispersion and automatic configuration box according to claim 1, characterized in that: The crushing system is installed on the upper part of the box body, and consists of a crushing tank, a rotating impact column and a crushing cone a. The crushing cone a is installed at the center position of the upper surface of the crushing tank through a clutch mechanism. The rotating impact column is fixed on the axis of the crushing cone a and can collide with the incoming powder to achieve preliminary crushing.

3. The multi-size powder uniform dispersion and automatic configuration box according to claim 1, characterized in that: The multi-stage grinding system is installed below the crushing system and consists of a multi-stage grinding jar and a multi-stage grinding jar shell. The upper and lower conical surfaces of the multi-stage grinding jar form gradually decreasing angles with the inner wall of the shell, and the middle parts are parallel to achieve a multi-stage grinding effect.

4. The multi-size powder uniform dispersion and automatic configuration box according to claim 1, characterized in that: The powder material distribution system is installed at the outlet of the grinding system, and is composed of a control switch, a distribution tank and a porous distribution ball. The control switch is connected to the distribution tank through a pipeline, and a porous distribution ball is inserted into the lower part of the distribution tank to ensure that the powder is evenly distributed in the distribution tank.

5. The multi-size powder uniform dispersion and automatic configuration box according to claim 1, characterized in that: The stirring system is located below the configuration tank and consists of a stirring motor, a stirring shaft, a large stirring blade and a small stirring blade. The stirring motor is fixed on a motor fixing frame, and the large stirring blade and the small stirring blade are connected to the stirring shaft to ensure that the powder entering the stirring tank is evenly dispersed.

6. The multi-size powder uniform dispersion and automatic configuration box according to claim 1, characterized in that: The ultrasonic system is installed at the front end of the discharge pipe, including a five-way valve and an ultrasonic generator. The five-way valve is connected to the exhaust pipe to ensure that the protective gas enters the front end of the ultrasonic generator, mixes with the configured coating solution and utilizes the cavitation effect to enhance the uniform dispersion effect of the powder particles.

7. A method for uniformly dispersing and automatically distributing powders of various sizes, characterized in that: The following steps are involved: S1: The powder to be processed is transported to the feed inlet pipe together with the protective gas through the feed inlet port. Under the action of gravity, the powder collides with the rotating impact column to achieve preliminary dispersion. S2: The initially dispersed powder falls into the crushing tank and is subjected to shear force between the crushing cone and the inner wall of the crushing tank, causing the powder to be further crushed and dispersed into particles of the required size. S3: Particles that meet the size enter the multi-stage grinding system through the bottom gap and are further ground at gradually decreasing grinding angles in the multi-stage grinding jar to achieve the required powder size.

8. The method according to claim 1, characterized in that The following steps are also included: S4: When the control switch is in the closed state, the ground powder enters the preparation tank through the conveying pipe and is evenly dispersed in the preparation liquid in the preparation tank through the porous distribution balls. S5: The liquid level is configured to be higher than the porous distribution balls so that the powder can be fully and evenly dispersed in the liquid.

9. The method according to claim 1, characterized in that Including the automated configuration steps for coating powder: S6: The prepared coating solution is transported to the stirring tank, and the stirring motor in the stirring system is started. The large stirring blade and the small stirring blade stir the coating solution until the uniformity detection sensor confirms that the solution is evenly dispersed.

10. The method according to claim 1, characterized in that The step of using ultrasound to assist in dispersing the coating powder is also included: S7: The uniform coating solution is transported to the front end of the ultrasonic generator through the discharge pipe, and the cavitation effect of the ultrasonic wave is used to further disperse the powder particles, so that the coating solution can achieve an ideal uniform dispersion effect at the tail end of the discharge pipe.

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