Powder coating high-speed dispersion and mixing integrated device

Abstract

The utility model discloses a powder coating high -speed dispersion mixed material integration device, including upper high -speed dispersion cavity, lower low -speed mixing cavity and support, high -speed dispersion cavity is equipped with eddy current type rotor and shear ring subassembly in, and low -speed mixing cavity is equipped with screw belt type agitator in, high -speed dispersion cavity is passed through sliding plate valve intercommunication with low -speed mixing cavity, and the same drive motor realizes the switching of high -speed dispersion and low -speed mixing through electromagnetic clutch and planetary gearbox, and inlet is equipped with flexible sealing curtain and negative pressure dust catcher, and dust falls back to mixing cavity through filter core recovery bin, and the outer wall of high -speed dispersion cavity is equipped with annular cooling water jacket, and temperature sensor and cooling system linkage are cooperated, and the quick -release buckle connection of stirring paddle and dispersion rotor is used, and the inner wall is coated with anti -adhesive coating. The device realizes dispersion and mixing integration operation, reduces dust escape, improves production efficiency and mixing uniformity.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating processing equipment, specifically to an integrated device for high-speed dispersion and mixing of powder coatings. Background Technology

[0002] In the production process of powder coatings, the raw material powder needs to be dispersed at high speed to break up agglomerated particles, and then mixed at low speed to obtain a uniform ratio. However, most existing dispersion and mixing equipment is of a split structure, requiring manual or additional conveying equipment for transfer, which is not only inefficient, but also prone to dust leakage and cross-contamination.

[0003] Furthermore, the required rotational speeds for high-speed dispersion and low-speed mixing differ significantly, making it difficult for existing equipment to efficiently switch between them on the same platform. High-speed dispersion processes easily generate frictional heat, affecting powder properties; the equipment cleaning process is cumbersome, and color and material changes are inefficient.

[0004] Therefore, there is an urgent need for a powder coating processing equipment that is compact in structure, can realize integrated dispersion and mixing operations, and has dustproof, cooling and easy-to-clean functions. Utility Model Content

[0005] The purpose of this invention is to provide an integrated device for high-speed dispersion and mixing of powder coatings to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated high-speed dispersion and mixing device for powder coatings includes a support frame;

[0008] The bracket is fixedly installed with an upper high-speed dispersion chamber and a lower low-speed mixing chamber. The high-speed dispersion chamber is equipped with a vortex rotor and a shear ring assembly, and the low-speed mixing chamber is equipped with a ribbon stirrer.

[0009] The high-speed dispersion chamber and the low-speed mixing chamber are connected by a sliding valve;

[0010] Both the vortex rotor and the ribbon agitator are connected to the same drive motor, which switches between high and low speeds via an electromagnetic clutch and a planetary gearbox.

[0011] Preferably, the inlet of the high-speed dispersion chamber is provided with a flexible sealing curtain and a negative pressure dust collection hood. The negative pressure dust collection hood is connected to the filter element recovery chamber through a pipe, and the bottom of the filter element recovery chamber is connected to the low-speed mixing chamber.

[0012] Preferably, the outer wall of the high-speed dispersion chamber is provided with an annular cooling water jacket, which is connected to an external cooling system through an inlet pipe and an outlet pipe.

[0013] Preferably, a temperature sensor is provided on the outer wall of the cooling water jacket, and the temperature sensor is electrically connected to the cooling system controller.

[0014] Preferably, both the vortex rotor and the ribbon agitator are connected to the corresponding rotating shaft via quick-release buckle assemblies.

[0015] Preferably, the inner walls of both the high-speed dispersion chamber and the low-speed mixing chamber are coated with an anti-stick coating.

[0016] Preferably, the bottom of the bracket is equipped with a damping spring and a soundproof cover.

[0017] Preferably, the bottom of the low-speed mixing chamber is provided with an adjustable discharge valve.

[0018] Preferably, a weighing sensor is provided at the bottom of the high-speed dispersion chamber. The weighing sensor is connected to the controller to realize dynamic monitoring and control of the feeding amount.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This integrated high-speed dispersion and mixing device for powder coatings completes dispersion and mixing in one step, avoiding material transfer and shortening process time.

[0021] 2. This integrated high-speed dispersion and mixing device for powder coatings features a sealed dustproof and recovery system to reduce dust escape, a cooling structure to ensure stable powder performance, and a quick-disassembly and cleaning structure to shorten color change time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 The structure of the high-speed dispersion cavity is shown in a cross-sectional view, and a partially enlarged view of the vortex rotor and shear ring is shown in a partial enlarged view.

[0024] Figure 3 This is a structural cross-sectional view of the low-speed mixing chamber and a partially enlarged view of the quick-release buckle assembly;

[0025] Figure 4 This is a structural schematic diagram of the dust collection system and a cross-sectional view of the filter cartridge collection chamber;

[0026] Figure 5 This is a schematic diagram of the cooling system and temperature control connection, indicating the flow direction of the cooling water and the signal lines.

[0027] In the diagram: 1. Support; 2. High-speed dispersion chamber; 21. Vortex rotor; 211. Disc-shaped base; 212. Arc-shaped blades; 213. Cutting surface; 22. Shear ring assembly; 221. Outer ring seat; 222. Inner ring tooth edge; 223. Radial cutting teeth; 3. Low-speed mixing chamber; 31. Ribbon agitator; 4. Slide valve; 5. Drive motor; 6. Electromagnetic clutch; 7. Planetary gearbox; 8. Feed inlet; 81. Flexible sealing curtain; 82. Negative pressure dust collection hood; 83. Filter cartridge recovery bin; 9. Cooling water jacket; 91. Inlet pipe; 92. Outlet pipe; 93. Temperature sensor; 94. Controller; 10. Quick-release buckle assembly; 101. Ring seat; 102. Pin rod; 103. Spring reset component; 11. Anti-stick coating; 12. Damping spring; 13. Soundproof cover; 14. Discharge valve; 15. Weighing sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The following is in conjunction with the appendix Figure 1 To be continued Figure 5 The specific embodiments of this utility model will be described in detail below. It should be noted that this description is only for illustrating the principle and structure of this utility model and does not constitute a limitation on the scope of protection.

[0030] Example 1: Overall Structure

[0031] like Figure 1 As shown, this utility model includes a support (1), an upper high-speed dispersion chamber (2), a lower low-speed mixing chamber (3), and a driving mechanism.

[0032] The support (1) is a welded steel plate frame structure. The upper part supports the high-speed dispersion chamber (2), and the lower part supports the low-speed mixing chamber (3). The positional relationship between the two is fixed by vertical pillars, so that the high-speed dispersion chamber (2) is located directly above the low-speed mixing chamber (3). The high-speed dispersion chamber (2) and the low-speed mixing chamber (3) are connected by a sliding valve (4). The valve is arranged horizontally and can move horizontally along the slide rail to control the falling of materials.

[0033] The drive motor (5) is fixed on one side of the bracket (1) and connected to the electromagnetic clutch (6) through a coupling. The output end of the electromagnetic clutch (6) is connected to the planetary gearbox (7). The high-speed output end of the planetary gearbox (7) drives the eddy current rotor (21), and the low-speed output end drives the ribbon mixer (31), thus realizing the switching between high speed and low speed.

[0034] Example 2: High-speed dispersion chamber and shear structure

[0035] like Figure 2 As shown, the high-speed dispersion chamber (2) is a cylindrical metal chamber with an anti-stick coating (11) on the inner wall and a feed inlet (8) at the top. A flexible sealing curtain (81) (made of wear-resistant nitrile rubber with a thickness of 2-3 mm, a width covering the full width of the feed inlet and extending 20-30 mm on each side, and a temperature range of -20℃ to 120℃) and a negative pressure dust collection hood (82) are installed above the feed inlet.

[0036] Vortex rotor (21): includes a disc-shaped base (211) and eight arc-shaped blades (212) evenly distributed on the outer periphery. The blades are installed at an angle of 30° and have a cutting surface (213) that is inclined downward at 5° at the end. The material is SUS304 stainless steel and the gap between the outer edge and the shear ring assembly (22) is 1 mm.

[0037] Shear ring assembly (22): includes an outer ring seat (221) and an inner ring tooth edge (222). The inner ring tooth edge is provided with radial cutting teeth (223) with a height of 4mm and a tooth pitch of 6mm, which are fixed on the inner wall of the cavity and arranged coaxially with the vortex rotor.

[0038] Example 3: Quick-release buckle assembly

[0039] like Figure 3 As shown, the quick-release buckle assembly (10) is a pin-type structure, including an annular seat (101), a pin rod (102), and a spring return member (103). The pin rod slides radially and is automatically locked by spring return. When disassembling, the rotor or agitator can be separated by pulling out the pin rod.

[0040] Example 4: Low-speed mixing chamber and stirring structure

[0041] The low-speed mixing chamber (3) is a cylindrical metal chamber with a volume larger than that of the high-speed dispersion chamber. The inner wall is coated with an anti-stick coating (11), and an adjustable discharge valve (14) is installed at the bottom.

[0042] The ribbon mixer (31) has an inner and outer double ribbon structure. The low-speed shaft is connected to the drive end through a quick-release buckle assembly to realize three-dimensional circulation mixing of materials.

[0043] Example 5: Dust Control and Recycling System

[0044] like Figure 4 As shown, the negative pressure dust collection hood (82) is connected to the filter cartridge recovery chamber (83) via a hose. The filter cartridge chamber contains replaceable filter cartridges, and the recovered powder enters the low-speed mixing chamber directly through the return port. The suction air volume and negative pressure value can be adjusted according to the powder characteristics, and the filtration accuracy can reach 5 microns.

[0045] Example 6: Cooling System and Control Logic

[0046] like Figure 5 As shown, the cooling water jacket (9) is connected to the external cooling system through the inlet pipe (91) and the outlet pipe (92), and the temperature sensor (93) is electrically connected to the controller (94). When the temperature of the outer wall of the chamber is ≥45℃, the controller automatically starts the water pump to supply water; when the temperature drops below 40℃, the water supply is automatically stopped. The cooling efficiency can reduce the temperature by more than 5℃ within 3 minutes.

[0047] Example 7: Vibration Damping and Sound Insulation Structure

[0048] Damping springs (12) are installed at the four corners of the bottom of the bracket (1), with a stiffness coefficient of 3.0 N / mm and a height of 70 mm. The soundproof cover (13) is a three-layer composite structure with an outer steel plate of 1.0 mm, a middle layer of 30 mm polyurethane sound insulation cotton, and an inner layer of 5 mm PVC board, which is fixed to the outside of the bracket with bolts.

[0049] Example 8: Weighing and Feeding Control

[0050] The weighing sensor (15) is installed at the bottom of the high-speed dispersion chamber and connected to the controller (94) to monitor the weight of the material in real time and to precisely control the amount of material fed by controlling the electric gate of the feed inlet.

[0051] The operating procedure for this device is as follows:

[0052] 1. Feeding stage: The operator adds the raw material powder from the feed inlet (8). The high-speed dispersion chamber (2) blocks the dust from escaping through the flexible sealing curtain (81). The negative pressure dust collection hood (82) is started at the same time to draw the escaping dust into the filter element recovery chamber (83) for filtration and recovery. The recovered powder enters the low-speed mixing chamber (3) directly through the return port.

[0053] 2. High-speed dispersion stage: The drive motor (5) is connected to the high-speed end of the planetary gearbox (7) through the electromagnetic clutch (6), driving the vortex rotor (21) to rotate at high speed. Together with the shear ring assembly (22), it forms a strong vortex and high shear force, breaking up the powder agglomerates and dispersing them evenly. The temperature sensor (93) monitors the temperature of the outer wall of the cavity in real time. When the set value is reached, the controller (94) automatically starts the cooling water jacket (9) for cooling.

[0054] 3. Material falling stage; After dispersion is completed, the operator opens the slide valve (4), and the material enters the low speed mixing chamber (3) from the high speed dispersion chamber (2) under the action of gravity.

[0055] 4. Low-speed mixing stage: The drive motor (5) switches to the low-speed end of the planetary gearbox (7), which drives the ribbon mixer (31) to rotate. The inner and outer ribbons push the material in opposite directions to form a three-dimensional circulating mixture, so that the powder components are evenly distributed.

[0056] 5. Discharge stage: After mixing, the finished powder is discharged through the discharge valve (14) at the bottom and enters the subsequent packaging or use stage.

[0057] All quick-release buckle components (10) of this device are designed for tool-free disassembly, allowing the rotor (21) and agitator (31) to be quickly removed for cleaning; the anti-stick coating (11) effectively reduces the powder adhesion rate, and can be cleaned with an air gun or air knife interface; the filter element in the filter element recovery chamber (83) can be quickly pulled out and replaced to maintain a good dust collection effect for a long time.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-speed dispersion and mixing integrated device for powder coatings, comprising a support frame (1), characterized in that: The bracket (1) is fixedly installed with an upper high-speed dispersion chamber (2) and a lower low-speed mixing chamber (3). The high-speed dispersion chamber (2) is equipped with a vortex rotor (21) and a shear ring assembly (22). The low-speed mixing chamber (3) is equipped with a ribbon stirrer (31). The high-speed dispersion chamber (2) and the low-speed mixing chamber (3) are connected by a sliding valve (4); The vortex rotor (21) and the ribbon agitator (31) are both connected to the same drive motor (5), and the drive motor (5) switches between high speed and low speed via an electromagnetic clutch (6) and a planetary gearbox (7).

2. The apparatus according to claim 1, characterized in that: The high-speed dispersion chamber (2) is provided with a flexible sealing curtain (81) and a negative pressure dust collection hood (82) at the feed inlet (8). The negative pressure dust collection hood (82) is connected to the filter element recovery chamber (83) through a pipe. The bottom of the filter element recovery chamber (83) is connected to the low-speed mixing chamber (3).

3. The apparatus according to claim 1, characterized in that: The outer wall of the high-speed dispersion chamber (2) is provided with an annular cooling water jacket (9), which is connected to the external cooling system through an inlet pipe (91) and an outlet pipe (92).

4. The apparatus according to claim 3, characterized in that: A temperature sensor (93) is provided on the outer wall of the cooling water jacket (9), and the temperature sensor (93) is electrically connected to the cooling system controller (94).

5. The apparatus according to claim 1, characterized in that: The vortex rotor (21) and the ribbon agitator (31) are both connected to the corresponding shafts via quick-release buckle assembly (10).

6. The apparatus according to claim 1, characterized in that: The inner walls of the high-speed dispersion chamber (2) and the low-speed mixing chamber (3) are coated with an anti-stick coating (11).

7. The apparatus according to claim 1, characterized in that: The bottom of the bracket (1) is equipped with a damping spring (12) and a soundproof cover (13).

8. The apparatus according to claim 1, characterized in that: The bottom of the low-speed mixing chamber (3) is provided with an adjustable discharge valve (14).

9. The apparatus according to claim 1, characterized in that: The high-speed dispersion chamber (2) is equipped with a weighing sensor (15) at the bottom. The weighing sensor (15) is connected to the controller (94) to realize dynamic monitoring and control of the feeding amount.

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