Pre-screening device for solid powder coating

Abstract

The utility model discloses a solid powder coating pre-screening device which comprises a frame, supporting seats are fixedly connected to the two sides of the frame, a material guiding frame is fixedly connected between the two supporting seats, limiting columns are fixedly connected to the positions, close to the two sides, of the frame, and sliding blocks are movably connected to the circumferential outer walls of the limiting columns. And a filtering frame is fixedly connected between the two sliding blocks, a filtering net is fixedly connected into the filtering frame, and a beating assembly for beating the material guiding frame is arranged on the filtering frame, so that the coating is prevented from being attached to the inner wall of the material guiding frame. According to the paint filtering device, the filtering net can move back and forth by controlling the left-right swing of the filtering frame, paint can be quickly filtered from the surface of the filtering net, the filtering rate can be improved, and the paint can intermittently and quantitatively fall into the surface of the filtering net to be filtered by controlling the intermittent movement of the baffle; and the filter screen is prevented from being blocked due to accumulation of the coating.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coatings, in particular to a pre-screening device for solid powder coatings. Background Art

[0002] Powder coating is a solvent-free, 100% solid powder coating with the characteristics of being solvent-free, pollution-free, recyclable, environmentally friendly, saving energy and resources, reducing labor intensity and having high mechanical strength of the coating film. The coating is made of special resin, pigment, filler, curing agent and other additives, mixed in a certain proportion, and then prepared by processes such as hot extrusion and crushing and screening. It is widely used in the fields of automobile decoration and shipbuilding industry. During the processing of powder coating, the coating needs to be screened. During the screening process, when more powder is added to the screen, the screen will be blocked due to the accumulation of coating, which will reduce the screening efficiency. At the same time, when the coating flows out of the guide frame, the powder sometimes adheres to the inner wall of the guide frame, affecting the feeding. Therefore, the technicians in this field provide a pre-screening device for solid powder coating to solve the problems raised in the above background technology. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a pre-screening device for solid powder coating.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A pre-screening device for solid powder coating comprises a frame, both sides of the frame are fixedly connected with support seats, a material guide frame is fixedly connected between the two support seats, the frame near the two sides are fixedly connected with limit columns, the circumferential outer walls of the limit columns are movably connected with sliders, a filter frame is fixedly connected between the two sliders, a filter screen is fixedly connected inside the filter frame, a knocking component for tapping the material guide frame is provided on the filter frame to prevent the coating from adhering to the inner wall of the material guide frame, a driving component for reciprocating the filter frame is provided on the frame to make the filter screen swing in a cycle and speed up the filtering efficiency, and a material blocking component is provided on the filter frame to block the material guide frame to prevent the coating from being continuously discharged.

[0006] As a further solution of the utility model, the driving component is a cam, one end of the frame is movably connected to a rotating shaft, two cams are fixedly connected to the circumferential outer wall of the rotating shaft, and the cams are in contact with the filter frame, one side of the frame is fixedly connected to a motor, and one end of the motor output shaft is fixed to the rotating shaft.

[0007] As a further solution of the utility model, one end of the frame is fixedly connected to a tension spring, and the other end of the tension spring is fixed to the filter frame.

[0008] As a further solution of the utility model, the material blocking assembly is a baffle, and mounting frames are fixedly connected on both sides of the filter frame, a baffle is fixedly connected between the two mounting frames, and the baffle is fitted with the bottom of the material guide frame, and a material discharge port is opened on the surface of the baffle, and the material discharge port is connected to the material guide frame.

[0009] As a further solution of the utility model, the knocking component is a rubber ball, one end of the filter frame is fixedly connected to a connecting plate, the top of the connecting plate is movably connected to a sliding rod, one end of the sliding rod is fixedly connected to a rubber ball, and the rubber ball can contact the material guide frame.

[0010] As a further solution of the utility model, a spring is movably connected to the circumferential outer wall of the sliding rod, and two ends of the spring are respectively fixed to the sliding rod and the connecting plate.

[0011] As a further solution of the utility model, a collecting frame is provided at the bottom of the frame, and the collecting frame is located below the filter screen.

[0012] The beneficial effects of the utility model are:

[0013] 1. By controlling the left and right swing of the filter frame to make the filter mesh move back and forth, the paint is quickly filtered from the surface of the filter mesh, which is beneficial to improve the filtration rate.

[0014] 2. By controlling the intermittent movement of the baffle, the paint can intermittently and quantitatively fall onto the surface of the filter for filtration, avoiding clogging of the filter due to accumulation of paint.

[0015] 3. The rubber ball moves to impact the material guide frame. The vibration generated by the impact will shake off the paint adhering to the inner wall of the material guide frame, which will help the paint flow out quickly and improve the feeding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a pre-screening device for solid powder coatings proposed by the utility model;

[0017] Figure 2 This is a cross-sectional structural schematic diagram of a pre-screening device for solid powder coatings proposed by the utility model;

[0018] Figure 3 The utility model is a partial cross-sectional structural schematic diagram of a pre-screening device for solid powder coatings.

[0019] In the figure: 1. frame; 2. support seat; 3. collection frame; 4. motor; 5. material guide frame; 6. slider; 7. limit column; 8. filter screen; 9. filter frame; 10. rotating shaft; 11. cam; 12. connecting plate; 13. slide bar; 14. spring; 15. rubber ball; 16. tension spring; 17. mounting frame; 18. baffle; 19. discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0021] Reference Figure 1-Figure 3 , a pre-screening device for solid powder coating comprises a frame 1, support seats 2 are fixed on both sides of the frame 1 by bolts, a material guide frame 5 is fixed between the two support seats 2 by bolts, limiting columns 7 are fixed by bolts at positions close to both sides of the frame 1, a slider 6 is slidably connected to the circumferential outer wall of the limiting column 7, a filter frame 9 is fixed between the two sliders 6 by bolts, a filter screen 8 is fixed inside the filter frame 9 by bolts, a knocking component for beating the material guide frame 5 is provided on the filter frame 9 to prevent the coating from adhering to the inner wall of the material guide frame 5, a driving component for reciprocating the filter frame 9 is provided on the frame 1, the slider 6 on the filter frame 9 can be moved along the limiting column 7 by the driving component, so that the filter screen 8 swings cyclically to speed up the filtering efficiency, and a blocking component for blocking the material guide frame 5 is provided on the filter frame 9 to prevent the coating from being continuously discharged.

[0022] In the utility model, the driving component is a cam 11, one end of the frame 1 is rotatably connected to the rotating shaft 10, the circumferential outer wall key of the rotating shaft 10 is connected to two cams 11, and the cams 11 are in contact with the filter frame 9, one side of the frame 1 is fixed with a motor 4 by bolts, and one end of the output shaft of the motor 4 is fixed to the rotating shaft 10, one end of the frame 1 is welded with a tension spring 16, and the other end of the tension spring 16 is fixed to the filter frame 9, the motor 4 rotates to make the rotating shaft 10 drive the two cams 11 to rotate, and the two cams 11 rotate to cyclically squeeze the filter frame 9, the filter frame 9 moves to one side after being squeezed, the tension spring 16 is forced to shrink, and when the cam 11 rotates to disengage from the filter frame 9, the tension spring 16 rebounds and resets, thereby making the filter frame 9 swing left and right, so that the paint is quickly filtered from the surface of the filter screen 8.

[0023] In the utility model, the material baffle assembly is a baffle 18, and mounting frames 17 are fixed on both sides of the filter frame 9 by bolts. A baffle 18 is fixed between the two mounting frames 17 by bolts, and the baffle 18 is fitted with the bottom of the material guide frame 5. A discharge port 19 is provided on the surface of the baffle 18, and the discharge port 19 can be connected with the material guide frame 5. The filter frame 9 moves to move the baffle 18. At this time, the discharge port 19 is connected with the bottom of the material guide frame 5, and the paint falls onto the surface of the filter screen 8 through the discharge port 19. When the filter frame 9 is reset, the baffle 18 is again fitted with the bottom of the material guide frame 5, so that the paint can fall onto the surface of the filter screen 8 intermittently and quantitatively.

[0024] The rubber ball 15 is moved to a suitable position to strike the material guide frame 5, and the vibration generated by the collision will shake off the paint adhered to the inner wall of the material guide frame 5, which helps the paint to flow out quickly. As the rubber ball 15 continues to squeeze the material guide frame 5, the slide bar 13 can move backward along the connecting plate 12, and the spring 14 is forced to shrink, thereby ensuring that the movement of the filter frame 9 will not be restricted by the contact between the rubber ball 15 and the material guide frame 5.

[0025] In the utility model, a collecting frame 3 is provided at the bottom of the frame 1, and the collecting frame 3 is located below the filter screen 8. The filter screen 8 filters the paint, and the filtered paint falls into the collecting frame 3 for collection.

[0026] Working principle: when it is necessary to screen the paint, the paint is poured into the guide frame 5, and the baffle 18 blocks the bottom of the guide frame 5, and then the motor 4 is started. The motor 4 rotates to make the rotating shaft 10 drive the two cams 11 to rotate, and the two cams 11 rotate to cyclically squeeze the filter frame 9. After being squeezed, the filter frame 9 moves to one side, and the tension spring 16 contracts under force, and the filter frame 9 moves to move the baffle 18. At this time, the discharge port 19 is connected with the bottom of the guide frame 5, and the paint falls into the surface of the filter screen 8 through the discharge port 19. The filter screen 8 filters the paint, and the filtered paint falls into the collection frame 3. When the cam 11 rotates to disengage from the filter frame 9, the tension spring 16 rebounds and resets. At this time, the filter frame 9 drives the filter screen 8 to reset, and the baffle 18 fits with the bottom of the guide frame 5 again, so that the paint can intermittently and quantitatively fall into the surface of the filter screen 8. With the continuous rotation of the cam 11, the filter frame 9 swings left and right, so that the paint is quickly filtered from the surface of the filter screen 8.

[0027] When the filter frame 9 moves, the connecting plate 12 moves accordingly, thereby causing the slide bar 13 to drive the rubber ball 15 to move. The rubber ball 15 moves to a suitable position to impact the material guide frame 5, and the vibration generated by the impact will shake off the paint adhering to the inner wall of the material guide frame 5, which helps the paint to flow out quickly. As the rubber ball 15 continues to squeeze the material guide frame 5, the slide bar 13 can move backward along the connecting plate 12, and the spring 14 is forced to contract, ensuring that the movement of the filter frame 9 will not be restricted by the contact between the rubber ball 15 and the material guide frame 5.

[0028] In this application, structures and connection relationships that are not described in detail are all prior arts, and their structures and principles are well-known technologies and will not be described in detail here.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-screening device for solid powder coating, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to support seats (2) on both sides, a material guide frame (5) is fixedly connected between the two support seats (2), the frame (1) is fixedly connected to limit posts (7) near the two sides, the circumferential outer walls of the limit posts (7) are movably connected to sliders (6), a filter frame (9) is fixedly connected between the two sliders (6), a filter screen (8) is fixedly connected inside the filter frame (9), a knocking component for knocking the material guide frame (5) is provided on the filter frame (9) to prevent the paint from adhering to the inner wall of the material guide frame (5), a driving component for reciprocating the filter frame (9) is provided on the frame (1) to make the filter screen (8) swing cyclically and increase the filtering efficiency, and a blocking component for blocking the material guide frame (5) is provided on the filter frame (9) to prevent the paint from continuously being discharged.

2. A solid powder coating pre-screening device according to claim 1, characterized in that: The driving component is a cam (11); one end of the frame (1) is movably connected to a rotating shaft (10); two cams (11) are fixedly connected to the circumferential outer wall of the rotating shaft (10); and the cams (11) are in contact with the filter frame (9); one side of the frame (1) is fixedly connected to a motor (4); and one end of an output shaft of the motor (4) is fixed to the rotating shaft (10).

3. A pre-screening device for solid powder coating according to claim 1, characterized in that: One end of the frame (1) is fixedly connected to a tension spring (16), and the other end of the tension spring (16) is fixed to the filter frame (9).

4. A pre-screening device for solid powder coating according to claim 1, characterized in that: The material blocking component is a baffle (18), and mounting frames (17) are fixedly connected to both sides of the filter frame (9), and a baffle (18) is fixedly connected between the two mounting frames (17), and the baffle (18) is in contact with the bottom of the material guide frame (5), and a material discharge port (19) is provided on the surface of the baffle (18), and the material discharge port (19) is communicable with the material guide frame (5).

5. A pre-screening device for solid powder coating according to claim 1, characterized in that: The knocking component is a rubber ball (15), one end of the filter frame (9) is fixedly connected to a connecting plate (12), the top of the connecting plate (12) is movably connected to a sliding rod (13), one end of the sliding rod (13) is fixedly connected to the rubber ball (15), and the rubber ball (15) can contact the material guide frame (5).

6. A pre-screening device for solid powder coating according to claim 5, characterized in that: The circumferential outer wall of the slide bar (13) is movably connected with a spring (14), and two ends of the spring (14) are respectively fixed to the slide bar (13) and the connecting plate (12).

7. A pre-screening device for solid powder coating according to claim 1, characterized in that: A collecting frame (3) is provided at the bottom of the frame (1), and the collecting frame (3) is located below the filter screen (8).

Images