Powder coating sieving device

Abstract

The invention relates to a powder coating sieving device, and relates to the technical field of coating processing, the powder coating sieving device comprises an equipment main body and a dispersion assembly, and the dispersion assembly comprises a supporting block installed on the equipment main body; a ball joint is movably connected in the supporting block; a dispersing pipe is mounted on the ball joint; a dispersing barrel is mounted at the top end of the dispersing pipe; a supporting frame is mounted on the supporting block; a first motor is mounted at the top of the supporting frame; a rotating frame is mounted at the output end of the first motor; and a second motor is arranged below the rotating frame. Under the driving of the first motor and the second motor, the dispersion barrel can rotate around the ball joint and can rotate at the same time, when the dispersion barrel rotates, the powder coating moves outwards under the action of centrifugal force, meanwhile, the dispersity is improved and the caking phenomenon is reduced due to collision among particles, and meanwhile the dispersion barrel rotates, so that the dispersion effect is improved. The powder coating can be uniformly added into the equipment main body, so that the coating is more dispersed, and the screening efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coating processing, in particular to a powder coating screening device. Background Art

[0002] Powder coating is a solid coating that does not use solvents and is usually composed of resins, pigments, fillers and other additives. This coating is evenly covered on the surface of the substrate through methods such as electrostatic spraying or fluidized bed coating, and then cured at high temperature to form a solid coating. The screening of powder coating is an important step to ensure that the powder coating particles are uniform and meet the spraying requirements. Screening not only affects the spraying effect of the coating, but also directly affects the quality of the coating and the performance of the final product.

[0003] Now the patent application number: 202411495929.6 discloses a powder coating vibration screening device, which, through the linkage cooperation of the processing mechanism and the driving motor, drives the agglomeration crushing component, the shoveling component and the pushing component to make circular motion around the edge of the screen surface when screening the powder coating, and uses the agglomeration crushing component to squeeze and crush the agglomerated powder coating, and then the shoveling component turns over and shovels up the crushed powder coating, and then cooperates with the vibration of the screen surface to efficiently break up and disperse the agglomerated powder coating, which is beneficial to improve the screening effect of the powder coating.

[0004] In the above process, there is a lack of an effective dispersion mechanism for powder coatings. Since powder coatings have certain hygroscopicity and adhesion, they are prone to agglomeration during storage or transportation, resulting in a decrease in fluidity, which in turn affects screening efficiency. In addition, the powder in traditional equipment is unevenly distributed when entering the screening area, causing local accumulation, further reducing the screening uniformity and processing efficiency. Summary of the Invention

[0005] In response to the technical problems existing in the prior art, the present invention provides a powder coating screening device, in which a dispersion cylinder is driven jointly by a first motor and a second motor so that it can rotate around a ball joint while also rotating on its own. This composite motion effectively improves the dispersion of the powder coating before it enters the main body of the equipment: centrifugal force is generated when the dispersion cylinder rotates, causing the powder to diffuse outward and enhancing the collision between particles, thereby reducing agglomeration; at the same time, the revolution of the dispersion cylinder helps to deliver the powder more evenly into the screening area, thereby improving the overall screening efficiency.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A powder coating screening device includes an equipment main body and a dispersion component, wherein the dispersion component includes a support block installed on the equipment main body; a ball joint is movably connected in the support block; a dispersion tube is installed on the ball joint; a dispersion cylinder is installed on the top of the dispersion tube; a support frame is installed on the support block; a first motor is installed on the top of the support frame; a rotating frame is installed on the output end of the first motor; and a second motor is arranged below the rotating frame.

[0007] A first electric telescopic rod is installed on the surface of one side of the rotating frame. The output end of the first electric telescopic rod is located in the rotating frame, and the output end of the first electric telescopic rod is slidably connected to the rotating frame. The output end of the first electric telescopic rod is ball-connected to the top of the second motor.

[0008] A feed pipe is installed on one side of the dispersion cylinder. The feed pipe is communicated with the dispersion cylinder and is installed at an angle.

[0009] A plurality of extrusion bars are installed in the dispersion cylinder. The plurality of extrusion bars are arc-shaped and equidistantly distributed in the dispersion cylinder. Pull ropes are installed at the tops of the plurality of extrusion bars. A second electric telescopic rod is installed on the surface of the dispersion cylinder.

[0010] The pulling rope passes through the top of the dispersion cylinder and extends to one side of the dispersion cylinder, and one end of the pulling rope is fixedly connected to one end of the second electric telescopic rod.

[0011] After the plurality of extruded strips are pulled, their top ends come into contact with the inner wall of the dispersion tube.

[0012] A plurality of first extrusion balls are placed in the dispersion tube, and a second extrusion ball is placed in the dispersion tube.

[0013] The radius of the second extrusion ball is greater than the radius of the first extrusion balls.

[0014] The first squeezing balls are steel balls, an electromagnetic coil is spirally installed on the surface of the dispersion tube, and the first squeezing balls are hollow in design.

[0015] An application of the screening device described in any one of the above items in powder coatings.

[0016] The beneficial effects of the present invention are as follows: by driving the first motor and the second motor, the dispersion cylinder can rotate around the ball joint while also rotating on its own. When the dispersion cylinder rotates on its own, the powder coating moves outward under the action of centrifugal force. At the same time, the collision between particles improves the dispersion and reduces the agglomeration phenomenon. At the same time, the rotation of the dispersion cylinder can evenly add the powder coating into the main body of the equipment, making the coating more dispersed and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a powder coating screening device; Figure 2 A perspective view of a dispersion cylinder of a powder coating screening device; Figure 3 A cross-sectional view of a dispersion cylinder of Example 2 of a powder coating screening device; Figure 4 A perspective view of an extrusion strip of Example 2 of a powder coating screening device; Figure 5 A diagram showing the use of an extrusion strip in Example 2 of a powder coating screening device; Figure 6 A schematic structural diagram of a first squeezing ball in Example 3 of a powder coating screening device; Figure 7 A schematic structural diagram of a second squeezing ball in Example 3 of a powder coating screening device; Figure 8 A schematic diagram of the movement path of the dispersion tube of a powder coating screening device.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: 10. Equipment body; 20. Dispersion assembly; 201. Support block; 202. Ball joint; 203. Dispersion tube; 204. Dispersion cylinder; 205. Support frame; 206. First motor; 207. Rotating frame; 208. Second motor; 30. First electric telescopic rod; 31. Feeding tube; 40. Extrusion bar; 41. Pull rope; 42. Second electric telescopic rod; 50. First extrusion ball; 60. Second extrusion ball; 70. Electromagnetic coil. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0020] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0021] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art will recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0022] Example 1 See also Figure 1 and Figure 2 An embodiment of the present invention provides a powder coating screening device, comprising an equipment main body 10 and a dispersion assembly 20, wherein the dispersion assembly 20 comprises a support block 201 mounted on the equipment main body 10; a ball joint 202 is movably connected inside the support block 201; a dispersion tube 203 is mounted on the ball joint 202; a dispersion cylinder 204 is mounted on the top of the dispersion tube 203; a support frame 205 is mounted on the support block 201; a first motor 206 is mounted on the top of the support frame 205; a rotating frame 207 is mounted on the output end of the first motor 206; and a second motor 208 is arranged below the rotating frame 207.

[0023] A first electric telescopic rod 30 is installed on the surface of one side of the rotating frame 207. The output end of the first electric telescopic rod 30 is located in the rotating frame 207, and the output end of the first electric telescopic rod 30 is slidably connected to the rotating frame 207. The output end of the first electric telescopic rod 30 is ball-connected to the top of the second motor 208.

[0024] A feed pipe 31 is installed on one side of the dispersion cylinder 204 . The feed pipe 31 is communicated with the dispersion cylinder 204 and is installed at an angle.

[0025] It should be noted that a sealing cover is installed at one end of the feed pipe 31, which can seal one end of the feed pipe 31 after feeding, to prevent the material from spilling out of one end of the feed pipe 31 during subsequent processing, resulting in waste of powder coating.

[0026] Specific implementation: When the powder coating needs to be screened, the powder coating to be screened is first added to the dispersion cylinder 204 through the feed pipe. After adding, the first motor 206 and the second motor 208 are controlled by the control switch. The rotation of the first motor 206 drives the rotating frame 207 to rotate, and the rotation of the rotating frame 207 drives the second motor 208 to rotate, so that the second motor 208 rotates around the ball joint 202, and then the second motor 208 drives the dispersion cylinder 204 and the dispersion tube 203 to rotate. While the dispersion tube 203 rotates, the output end of the first electric telescopic rod 30 is controlled to reciprocate. The reciprocating movement of the output end of the first electric telescopic rod 30 drives the second motor 208 to reciprocate, and then the angle of the dispersion cylinder 204 can be adjusted to adjust the rotation path of the dispersion cylinder 204, and the rotation of the first motor 206 drives the dispersion cylinder 204 to rotate.

[0027] Driven by the first motor 206 and the second motor 208, the dispersion cylinder 204 can rotate around the ball joint 202 and rotate on its own. When the dispersion cylinder 204 rotates, the powder coating moves outward under the action of centrifugal force. At the same time, the collision between particles improves the dispersion and reduces the agglomeration phenomenon. At the same time, the rotation of the dispersion cylinder 204 can evenly add the powder coating to the equipment body 10, making the coating more dispersed and improving the screening efficiency.

[0028] Example 2 Since there is agglomeration in powder coatings, which affects the speed of powder coating sieving, improvements are needed to solve the problem. See also Figures 3 to 5 An embodiment of the present invention provides a powder coating screening device, wherein a plurality of extrusion bars 40 are installed in the dispersion cylinder 204, the plurality of extrusion bars 40 are arc-shaped, and the plurality of extrusion bars 40 are equidistantly distributed in the dispersion cylinder 204, a pulling rope 41 is installed at the top of the plurality of extrusion bars 40, and a second electric telescopic rod 42 is installed on the surface of the dispersion cylinder 204.

[0029] It should be noted that the multiple extrusion strips 40 are plastic strips that can gather and deform when pulled, and can automatically reset when the pulling force is lost, so as to facilitate repeated extrusion of the agglomerated powder coating.

[0030] The pulling rope 41 passes through the top of the dispersion cylinder 204 and extends to one side of the dispersion cylinder 204 , and one end of the pulling rope 41 is fixedly connected to one end of the second electric telescopic rod 42 .

[0031] After being pulled, the top ends of the plurality of extruded strips 40 contact the inner wall of the dispersion tube 204 .

[0032] Specifically, after the powder coating is added into the dispersion cylinder 204, while the first motor 206 and the second motor 208 are rotating, the output end of the second electric telescopic rod 42 is controlled to move back and forth by the control switch. When the output end of the second electric telescopic rod 42 contracts, the pulling rope 41 is pulled, so that the pulling rope 41 pulls the multiple extrusion bars 40, and then the multiple extrusion bars 40 squeeze the powder coating inside the extrusion bars 40, so that the powder can be dispersed. When the output end of the second electric telescopic rod 42 is extended and reset, the pulling rope 41 no longer pulls the extrusion bar 40, so that the extrusion bar 40 is automatically reset.

[0033] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: By repeatedly moving the second electric telescopic rod 42, the multiple extrusion bars 40 repeatedly extrude the powder coating, thereby breaking up the blocky powder coating, thereby reducing the amount of agglomerated powder coating and improving the effect of subsequent powder coating screening.

[0034] Example 3 Since the treatment effect of the powder coating in Example 2 is limited, it requires long-term and repeated treatment, which affects the speed of the powder coating treatment, so it is improved; See also Figure 6 and Figure 7 , an embodiment of the present invention provides a powder coating screening device, wherein a plurality of first squeezing balls 50 are placed in the dispersion tube 204 , and a second squeezing ball 60 is placed in the dispersion tube 204 .

[0035] It should be noted that when the powder coating is squeezed by the first squeezing ball 50 and the second squeezing ball 60, only the first motor 206 can rotate at this time to avoid the centrifugal force generated by the second motor 208, which causes the first squeezing ball 50 and the second squeezing ball 60 to be on one side of the squeezing bar 40, affecting the processing effect of the powder coating.

[0036] The radius of the second squeezing ball 60 is greater than the radius of the first squeezing balls 50 .

[0037] Specifically, after the powder coating is added into the dispersion cylinder 204, when the second electric telescopic rod 42 pulls the squeezing bar 40 through the pulling rope 41, the squeezing bar 40 will squeeze the second squeezing ball 60 and the first squeezing ball 50. When squeezing the second squeezing ball 60, the second squeezing ball 60 will move upward. The upward movement of the second squeezing ball 60 will squeeze the first squeezing ball 50, so that the second squeezing ball 60 and the first squeezing ball 50 cooperate to squeeze and crush the blocky powder coating.

[0038] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: The first squeezing ball 50 and the second squeezing ball 60 are squeezed by the squeezing bar 40, and the multiple first squeezing balls 50 are used to apply shear force and compression force to the powder to crush the blocky paint. At the same time, the dispersed layout of the multiple first squeezing balls 50 may cover a wider area, and the moving path of the second squeezing ball 60 is adjusted by the squeezing bar to form a dynamic squeezing network, which reduces processing dead angles and improves the processing effect of blocky paint.

[0039] Example 4 Since the block-shaped paint has a poor drying effect when drying and its moisture content is relatively high after crushing, it needs to be dried, so further improvements are made; See also Figure 1 and Figure 6 The embodiment of the present invention provides a powder coating screening device, wherein the plurality of first squeezing balls 50 are steel balls, and an electromagnetic coil 70 is spirally installed on the surface of the dispersion cylinder 204 .

[0040] It should be noted that by arranging the electromagnetic coil 70 outside the dispersion tube 204 to generate a high-frequency alternating magnetic field, the first extrusion ball 50 inside the dispersion tube 204 is automatically heated due to the electromagnetic induction effect; the heated first extrusion ball 50 rolls and squeezes the powder under the drive of the dynamic contraction of the extrusion bar 40 of the dispersion tube 204, on the one hand, using mechanical force to break up the agglomerates, and on the other hand, directly transferring heat to the inside of the powder through contact conduction and thermal radiation. At the same time, the continuous movement of the steel ball promotes the uniform evaporation and discharge of moisture, thereby achieving the synchronous effect of drying and deagglomeration.

[0041] The first extrusion balls 50 are hollow in design.

[0042] It should be noted that the temperature generated by the first squeeze ball 50 is controllable. By controlling the electromagnetic coil 70, the temperature can be controlled. Specific control is performed according to the drying temperature range of the processed powder coating. By adjusting the input current or operating frequency of the electromagnetic coil, the intensity of the alternating magnetic field can be changed, thereby controlling the heat generation rate of eddy currents and hysteresis losses inside the steel ball. For example, reducing the current or increasing the frequency can reduce the heat generation, while reducing the current or increasing the frequency can increase the heating power.

[0043] An application of the screening device described in any one of the above items in powder coatings.

[0044] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: By combining electromagnetic induction heating with mechanical extrusion innovation, it can not only accelerate moisture dissipation with higher heat conduction efficiency, but also directly break up the agglomerated structure through physical extrusion, avoiding energy waste or local overheating damage caused by hot air circulation in traditional drying, and improving drying uniformity.

[0045] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0046] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A powder coating screening device, characterized in that: It comprises a device body (10) and a dispersed component (20), wherein: The dispersion assembly (20) includes a support block (201) mounted on the device body (10); A ball joint (202) is movably connected in the support block (201); A dispersion pipe (203) is installed on the ball joint (202); A dispersion tube (204) is installed at the top end of the dispersion tube (203); A support frame (205) is mounted on the support block (201); A first motor (206) is installed on the top of the support frame (205); A rotating frame (207) is installed at the output end of the first motor (206); A second motor (208) is provided below the rotating frame (207).

2. A powder coating screening device according to claim 1, characterized in that: A first electric telescopic rod (30) is mounted on a surface of one side of the rotating frame (207), an output end of the first electric telescopic rod (30) is located in the rotating frame (207), and the output end of the first electric telescopic rod (30) is slidably connected to the rotating frame (207), and the output end of the first electric telescopic rod (30) is ball-connected to the top of the second motor (208).

3. A powder coating screening device as claimed in claim 2, characterized in that: A feed pipe (31) is installed on one side of the dispersion cylinder (204), the feed pipe (31) and the dispersion cylinder (204) are in communication with each other, and the feed pipe (31) is installed at an angle.

4. A powder coating screening device according to claim 1, characterized in that: A plurality of extrusion bars (40) are installed in the dispersion tube (204), the plurality of extrusion bars (40) are arc-shaped, and the plurality of extrusion bars (40) are equidistantly distributed in the dispersion tube (204), a pulling rope (41) is installed at the top end of the plurality of extrusion bars (40), and a second electric telescopic rod (42) is installed on the surface of the dispersion tube (204).

5. A powder coating screening device as claimed in claim 4, characterized in that: The pulling rope (41) passes through the top of the dispersion cylinder (204) and extends to one side of the dispersion cylinder (204), and one end of the pulling rope (41) is fixedly connected to one end of the second electric telescopic rod (42).

6. A powder coating screening device as claimed in claim 4, characterized in that: After the plurality of extrusion strips (40) are pulled, their top ends come into contact with the inner wall of the dispersion tube (204).

7. A powder coating screening device as claimed in claim 4, characterized in that: A plurality of first extrusion balls (50) are placed in the dispersion tube (204), and a second extrusion ball (60) is placed in the dispersion tube (204).

8. A powder coating screening device as claimed in claim 7, characterized in that: The radius of the second extrusion ball (60) is greater than the radius of the plurality of first extrusion balls (50).

9. A powder coating screening device according to claim 7, characterized in that: The plurality of first extrusion balls (50) are steel balls, an electromagnetic coil (70) is spirally mounted on the surface of the dispersion cylinder (204), and the plurality of first extrusion balls (50) are hollow in design.

10. Use of the screening device according to any one of claims 1 to 9 in powder coatings.

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