A surface coating material mixing and stirring device

Abstract

The utility model discloses a surface coating material mixing and stirring device can be in the full mixing of various raw materials for producing coating material while, with the process some generated or is unable to eliminate the granule or is the lumpy part screening removal, and then promote the quality of the coating material obtained finally. The device contains the device main part that has the hollow chamber inside, is provided with the drive system for urging coating material to circulate flow and promotes the uniform mixing of each part in coating material in the inside of device main part, and is used for separating the screening filtration system to the uneven part in coating material.

Description

Technical Field

[0001] This utility model relates to a coating material spraying pretreatment device, specifically a surface coating material mixing and stirring device. Background Technology

[0002] Currently, in the production and processing of many products, various types and forms of surface coating materials are sprayed onto their surfaces to achieve different effects such as wear resistance, corrosion resistance, and improved surface smoothness. During the production of these coating materials, due to the uniqueness and diversity of their material types, it is often necessary to thoroughly mix substances in different states, such as liquid raw materials and granular or powdered additives, to obtain a final product with specific properties for use as a coating material. Currently, some devices and equipment on the market are capable of fully realizing these functions.

[0003] For example, a mixing tank disclosed in Chinese utility model patent application CN200910035204.8 includes a tank body, material inlet and outlet interfaces, supports, guide plates, and a stirring device. The guide plates are movable and hinged to the inner wall of the tank. The positioning is adjusted by a linkage ring controlled by an adjustment handle. The structure is simple, inexpensive, and easy to operate. The guide plates at approximately 30 degrees create a deflection and backflow, which collide with and dissipates the resulting vortex, causing the liquid flow to tumble and flow up and down along the axial direction of the stirring device. This is more conducive to thorough and uniform mixing of the liquid, reducing mixing time and improving mixing quality. For example, Chinese utility model patent application CN202020308035.2 discloses a paint mixing and blending device, including a mixing tank with several feed inlets at the top and a discharge outlet at the bottom. A first motor is located at the top of the mixing tank, with its output connected to a first rotating shaft extending into the tank. The first rotating shaft has dispersing blades and a first stirring blade, with the dispersing blades positioned above the stirring blade. A second motor is located at the bottom of the mixing tank, with its output connected to a second rotating shaft extending into the tank. The second rotating shaft has second stirring blades. This paint mixing and blending device has high efficiency, capable of mixing paint raw materials quickly and evenly, resulting in high-quality, effective finished paint products.

[0004] However, regarding the mixing and stirring devices provided by Hong in the aforementioned scheme, the applicant discovered that during the process of adding various raw materials to the device and mixing them, due to uncontrollable factors such as the addition rate or contact position, even after thorough mixing, the final material product may still contain particulate or lumpy raw material substances. This problem is particularly serious for coating materials sprayed onto workpiece surfaces, not only affecting the surface smoothness but also potentially causing a significant decrease in the adhesion of the coating material in certain areas, thus resulting in a poorer protective effect.

[0005] To address the aforementioned problems, this utility model provides a surface coating material mixing and stirring device, which can thoroughly mix various raw materials used in the production of coating materials while screening and removing some particles or clumps generated or that cannot be eliminated during the process, thereby improving the quality of the final coating material. Utility Model Content

[0006] This invention provides a surface coating material mixing and stirring device, which can fully mix various raw materials used to produce coating materials, and screen out and remove some particles or clumps generated or that cannot be eliminated during the process, thereby improving the quality of the final coating material.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A surface coating material mixing and stirring device is characterized by: a device body having a hollow chamber inside; a drive system for continuously circulating and uniformly mixing the coating material within the device body; and a sieving and filtering system for separating non-uniform portions of the coating material; a return flow pipe connecting the bottom of one side of the hollow chamber to the top of the hollow chamber is provided on the side of the hollow chamber; the drive system includes an impeller assembly capable of pushing the coating material in the hollow chamber downwards, allowing the coating material to continuously pass through the sieving and filtering system under the pushing action of the impeller assembly; the impeller assembly includes a power unit disposed on the outside, a transmission connecting rod tractably connected to the output end of the power unit, and a blade portion fixedly installed at the lower end of the transmission connecting rod (2012); the blade portion has a spiral structure and is capable of continuously pushing the coating material downwards following the transmission connecting rod.

[0009] As a preferred embodiment of the present invention, the power device is a stepper motor arranged in a horizontal position, and a bevel gear transmission mechanism is provided between the output end of the stepper motor and the transmission connecting rod.

[0010] As a preferred embodiment of the present invention, an inclined guide portion is provided at the bottom of the hollow chamber for guiding the coating material that pushes the impeller assembly downward toward the lower opening of the return conduit.

[0011] As a preferred embodiment of the present invention, the screening and filtration system includes a pull-out screen plate that is movably mounted on the main body of the device in an inclined manner. The pull-out screen plate includes a front insertion end, a rear pull-out end, and a filter section located between the insertion end and the pull-out end.

[0012] As a preferred embodiment of the present invention, a raised anti-dislodgement stop is also provided on the plug-in end for abutting against the inner wall of the hollow cavity.

[0013] As a preferred embodiment of the present invention, an injection channel is provided at the top of the main body of the device for injecting raw materials for mixing and forming coating materials into the hollow chamber; a discharge channel is provided at the bottom of the main body of the device for discharging the coating material after processing, the discharge channel is connected to the bottom of the return pipe, and a sealing plug can be detachably installed in the discharge channel.

[0014] In summary, this utility model can achieve the following beneficial effects:

[0015] The surface coating material mixing and stirring device provided by this utility model can achieve continuous circulation of the coating material inside the device during the stirring and mixing of raw materials. It also uses a screening and filtering system to restrict and easily separate and remove the particulate or clump-like material that has not been fully dispersed. This ensures that the various components of the coating material are mixed evenly, while preventing problems such as clogging during the coating material spraying process, reduced adhesion to the surface of the component, or reduced surface smoothness. Attached Figure Description

[0016] Figure 1 A schematic diagram of the internal structure layout of a mixing and stirring device for surface coating materials;

[0017] Figure 2 A schematic diagram of the flow state of the internal coating material when the surface coating material mixing and stirring device is started;

[0018] Figure 3 This is a schematic diagram showing the flow state of the coating material as it is discharged after mixing and sieving.

[0019] Figure 4 This is a partially enlarged schematic diagram of the bevel gear transmission mechanism.

[0020] In the picture:

[0021] 1—Main body of the device, 101—Hollow cavity, 102—Return flow pipe, 103—Inclined guide section, 104—Injection channel, 105—Discharge channel;

[0022] 2—Drive system; 201—Impeller assembly; 2011—Power unit; 2012—Transmission connecting rod; 2013—Blade section; 2014—Bevel gear transmission mechanism.

[0023] 3—Screening and filtration system; 301—Pull-out screen plate; 3011—Plug-in end; 3012—Pull-out end; 3013—Filter section; 3014—Anti-detachment stop section.

[0024] 4 - Sealing plug. Detailed Implementation

[0025] The following specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

[0026] This solution is achieved through the following technical means:

[0027] Example: This example provides a surface coating material mixing and stirring device, which can fully mix various raw materials used to produce coating materials, and screen out some particles or clumps generated or that cannot be eliminated during the process, thereby improving the quality of the final coating material.

[0028] For details, please refer to the instruction manual appendix. Figure 1The provided schematic diagram of the overall internal structure of the device shows that it mainly comprises a box-shaped main body 1, inside which is a cylindrical hollow chamber 101. Inside the hollow chamber 101, there are two components: a drive system 2 for continuously circulating and mixing the coating material, and a sieving and filtering system 3 for separating uneven portions of the coating material. To enable the operation of these two systems, a hollow tubular return pipe 102 is installed on the side of the hollow chamber 101, with its upper and lower ends connected to the upper and lower ends of the hollow chamber 101, respectively. More preferably, the main body of the return flow pipe 102 is vertical, with its upper section curved and flipped towards the hollow chamber 101 and connected to the top of the hollow chamber 101. Its lower section is also curved, but connects to the bottom of the hollow chamber 101 on one side. Simultaneously, an inclined guide section 103 is installed at the bottom of the hollow chamber 101. This section's structure gradually decreases from the side away from the return flow pipe 102 towards the side closer to it. Of course, the guide surface can be an inclined plane or a curved shape to facilitate smoother flow of the coating material inside the chamber.

[0029] Of course, considering the injection of raw material formulations for producing coating materials into the hollow chamber 101, a feeding channel 104 for adding raw materials for mixing and forming coating materials into the hollow chamber 101 needs to be provided at the top of the device body 1. Simultaneously, a discharge channel 105 is provided at the bottom of the device body 1 for discharging the processed coating material outwards. To prevent leakage of the coating material from the chamber during mixing, a sealing plug 4 should be installed at the discharge channel 105 to separate it from the external space.

[0030] As a preferred configuration, the discharge channel 105 is also inclined, and its inner end opens into the inclined portion of the aforementioned inclined guide 103 in a smooth transition. Therefore, after the coating material is mixed and sieved, the coating material inside the chamber can be discharged outward through the discharge channel 105 while the sealing plug 4 is open, thanks to the action of the drive system 2.

[0031] Based on the above structure, the drive system 2 enables the mixed, liquid coating material to continuously circulate between the hollow chamber 101 and the return conduit 102. This effect is mainly achieved through the impeller assembly 201 in the drive system 2, which includes an outer power unit 2011, a transmission connecting rod 2012 tractably connected to the output end of the power unit 2011, and a blade portion 2013 fixedly installed at the lower end of the transmission connecting rod 2012. Specifically, the power unit 2011 is a horizontally positioned stepper motor, and the output end of the stepper motor forms a connection with the top end of the aforementioned transmission connecting rod 2012 as shown in the appendix to the specification. Figure 4 The bevel gear transmission mechanism 2014 is described above. When the stepper motor, which serves as the power unit 2011, is energized, it drives the transmission connecting rod 2012 to rotate continuously around the vertical central axis, thereby causing the blade portion 2013 to rotate. Since the blade portion 2013 is designed as a spiral structure and completely inserted into the coating material stored in the hollow cavity 101, it continuously applies a downward pushing force to the coating material as it rotates with the transmission connecting rod 2012. At this time, these blade portions 2013 not only allow the different components of the coating material injected into the cavity to mix, but also continuously push the coating material downwards. In the case where the blade portion 2013 continuously pushes the upper fluid-like coating material downwards, the coating material, after being filtered by the screen plate, still has a strong tendency to continue flowing downwards and comes into contact with the inclined upper surface of the bottom inclined guide portion. Guided by the inclined plane, a portion of the coating material moves to the bottom inlet of the return flow tube below the chamber. As the coating material continues to be pushed by the helical blades, the portion entering the return flow tube is further compressed by the coating material pushed from above, and is thus pushed upwards within the aforementioned return flow channel until it is discharged from the upper opening of the return flow tube and re-enters the upper part of the hollow chamber, thereby forming a continuous flow cycle.

[0032] The sieving and filtration system 3, located inside the hollow chamber 101, utilizes this aforementioned circulating flow to sieve and remove portions of the coating material that have not been sufficiently and evenly distributed or have clumped together. This sieving and filtration system 3 includes a pull-out screen plate 301 that is movably mounted at an angle on the main body 1 of the device. The pull-out screen plate 301 includes a front insertion end 3011, a rear pull-out end 3012, and a filter section 3013 located between the insertion end 3011 and the pull-out end 3012. (Refer to the attached specification.) Figure 3The given flow state of the coating material under agitation and mixing conditions: When the pull-out filter screen plate 301 is located inside the hollow chamber 101, the insertion end 3011 is embedded in the groove on the inner wall of the hollow chamber 101. Simultaneously, a portion of the pull-out end 3012 located at the rear is also inserted into the channel on the outside of the main device, thus providing stable support at both ends. When the coating material flows downwards through the filter screen section 3013, some granular or lumpy raw materials that have not been uniformly dispersed and mixed are blocked by the filter screen section 3013 and adhere to its surface, unable to continue circulating downwards with the fluid coating material. After a certain period of agitation and sieving, the operator can remove the pull-out filter screen plate 301 outwards through the pull-out end 3012 and clean the filter screen section 3013 to remove impurities.

[0033] It should also be noted that a protruding anti-dislodgement stop part 3014 is provided on the plug end 3011 for abutting against the inner wall surface of the hollow cavity 101.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A mixing and stirring device for surface coating materials, characterized in that: The device includes a main body (1) with a hollow chamber (101) inside. Inside the main body (1) is a drive system (2) for driving the coating material to circulate continuously and for promoting uniform mixing of the various parts of the coating material, and a sieving and filtering system (3) for separating the uneven parts of the coating material. A return flow pipe (102) is provided on the side of the hollow chamber (101) and connects the bottom of one side of the hollow chamber (101) to the top of the hollow chamber (101). The drive system (2) includes a device capable of separating the coating material in the hollow chamber (101). The downward-pushing impeller assembly (201) allows the coating material to continuously pass through the screening and filtration system (3) under the pushing action of the impeller assembly (201); the impeller assembly (201) includes a power unit (2011) disposed on the outside, a transmission connecting rod (2012) tractably connected to the output end of the power unit (2011), and a blade portion (2013) fixedly installed at the lower end of the transmission connecting rod (2012); the blade portion (2013) here has a spiral structure and can continuously push the coating material from top to bottom following the transmission connecting rod (2012).

2. The surface coating material mixing and stirring device according to claim 1, characterized in that: The power unit (2011) is a stepper motor arranged in a horizontal position, and a bevel gear transmission mechanism (2014) is provided between the output end of the stepper motor and the transmission connecting rod (2012).

3. The surface coating material mixing and stirring device according to claim 2, characterized in that: An inclined guide (103) is provided at the bottom of the hollow chamber (101) to guide the coating material that pushes the impeller assembly (201) downward toward the lower opening of the return pipe (102).

4. The surface coating material mixing and stirring device according to claim 1, characterized in that: The sieving and filtering system (3) includes a pull-out screen plate (301) that is movably installed on the main body (1) of the device in an inclined manner. The pull-out screen plate (301) includes a front insertion end (3011), a rear pull-out end (3012), and a filter part (3013) located between the insertion end (3011) and the pull-out end (3012).

5. The surface coating material mixing and stirring device according to claim 4, characterized in that: A raised anti-dislodgement stop (3014) is also provided on the plug end (3011) for abutting against the inner wall of the hollow cavity (101).

6. The surface coating material mixing and stirring device according to claim 5, characterized in that: A material injection channel (104) for adding raw materials for mixing and forming coating materials into the hollow chamber (101) is provided at the top of the device body (1); a material discharge channel (105) for discharging the coating material after processing is provided at the bottom of the device body (1), the material discharge channel (105) is connected to the bottom of the return pipe (102), and a sealing plug (4) can be detachably installed in the material discharge channel (105).

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