Thermosetting powder coating screening device

Abstract

The utility model relates to the field of coating production, and discloses a thermosetting powder coating screening device which comprises a box body and a top cover. The screen is funnel-shaped; the connecting shaft is mounted above the screen; the supporting rod is fixed to the outer surface of the end, close to the screen, of the connecting shaft. An electric heating wire; grinding teeth; the transmission gear is fixed on the outer surface of one end of the top of the connecting shaft; and the motor I is mounted at the top of the box body. According to the powder coating grinding device, the screen is designed to be in a funnel shape, powder coating can slide along the inclined face of the screen conveniently, then the accumulation problem of the powder coating is reduced, the supporting rod, the electric heating wire and the grinding teeth are arranged above the screen, and the first motor can drive the supporting rod to rotate through the connecting shaft; and therefore, the heated electric heating wire is driven to dry the powder coating, the caking and adhesion problems of the powder coating are reduced, the caked powder coating is ground on the surface of the screen through the grinding teeth, and the screening efficiency of the powder coating is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating production equipment, in particular to a thermosetting powder coating screening device. Background Art

[0002] Thermosetting powder coating refers to a coating with thermosetting resin as the main film-forming substance. When this coating is cured, the film-forming substance in the coating becomes a hard, insoluble and infusible polymer network structure through cross-linking and other reactions. The main varieties include amino alkyd coatings, thermosetting acrylic coatings, epoxy resin coatings, polyester coatings and polyurethane coatings.

[0003] In the powder coating production process, the ground material must be further screened to obtain a product that meets the requirements. However, the powder coating may contain moisture due to moisture, and the powder containing moisture will stick together to form larger particles. In addition, when screening thermosetting powder coatings, the damp thermosetting powder coatings are easy to adhere to the screen plate, thereby reducing the screening efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a thermosetting powder coating screening device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions:

[0006] The utility model discloses a thermosetting powder coating screening device, comprising a box body,

[0007] The top cover is mounted on the top of the box through a hinge;

[0008] The screen is funnel-shaped and movably installed inside the box;

[0009] The connecting shaft is installed above the screen;

[0010] A support rod is fixed to the outer surface of one end of the connecting shaft close to the screen;

[0011] The heating wire is installed in the cavity inside the support rod;

[0012] The grinding teeth are fixed on the bottom surface of the support rod close to the screen and are arranged linearly;

[0013] A transmission gear is fixed to the outer surface of one end of the top of the connecting shaft;

[0014] Motor 1 is installed on the top of the box.

[0015] Furthermore, a feeding port is provided on the top of the box body.

[0016] Furthermore, a plurality of fixed support plates are fixed inside the box body, and a movable support plate is installed on the top of the fixed support plate through a compression spring.

[0017] Furthermore, an eccentric wheel is movably installed at a position where the inner wall of the box is horizontal to the movable support plate.

[0018] Furthermore, a second motor is installed at a position on the outer wall of the box corresponding to the eccentric wheel, and a transmission end of the second motor is connected to the eccentric wheel.

[0019] Furthermore, a collecting bucket is movably installed at the bottom of the box.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The utility model designs the screen into a funnel shape, which facilitates the powder coating to slide along the inclined surface of the screen, thereby reducing the accumulation problem of the powder coating, and arranges a support rod, a heating wire and a grinding tooth above the screen. The motor can drive the support rod to rotate through the connecting shaft, thereby driving the heated heating wire to dry the powder coating, reducing the agglomeration and sticking problems of the powder coating, and the grinding teeth grind the agglomerated powder coating on the surface of the screen, thereby further improving the screening efficiency of the powder coating.

[0022] The utility model arranges a fixed support plate and a movable support plate inside the box to support the screen, and installs an eccentric wheel inside the box to contact the screen. The eccentric wheel is driven to rotate by motor 2, so that the eccentric wheel and the screen are in intermittent contact, thereby causing the screen to vibrate, increasing the shaking amplitude and frequency of the screen, and further enhancing the screening efficiency of the screen for powder coatings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0024] Figure 2 This is a structural cross-sectional view of the utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the fixed support plate and the movable support plate in the present utility model;

[0026] Figure 4 It is a partial cross-sectional view of the drying and grinding device in the present utility model;

[0027] The numbers in the figure represent: 1. Box body; 2. Top cover; 3. Feeding port; 4. Screen; 5. Fixed support plate; 6. Movable support plate; 7. Connecting shaft; 8. Support rod; 9. Heating wire; 10. Grinding teeth; 11. Transmission gear; 12. Motor 1; 13. Eccentric wheel; 14. Motor 2; 15. Collecting bucket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-4 , including a box body 1, a top cover 2, which is movably installed on the top of the box body 1 through a hinge, and a convex ring is fixed at the inner wall of the box body 1 corresponding to the bottom position of the top cover 2, which supports the bottom of the top cover 2 through the convex ring, and the top cover 2 is installed with the box body 1 through a hinge, so that the top cover 2 can be opened conveniently to inspect the inside of the box body 1; the screen 4 is funnel-shaped and movably installed inside the box body 1. The funnel-shaped design of the screen 4 makes it convenient for the powder coating to fall on the screen 4, and the coating slides along the inclined slope of the screen 4, thereby reducing the accumulation of the powder coating and accelerating the screening of the powder coating. ; The connecting shaft 7 is installed above the screen 4, and a through hole is provided on the surface of the box body 1 at the position corresponding to the connecting shaft 7. The top end of the connecting shaft 7 passes through the through hole provided in the box body 1, and the interior of the connecting shaft 7 is hollow; the support rod 8 is fixed to the outer surface of the connecting shaft 7 near the end of the screen 4. The support rod 8 is arranged parallel to the inner wall of the screen 4. The two groups of support rods 8 are symmetrically designed. The interior of the support rod 8 is also hollow and is interconnected with the interior of the connecting shaft 7; the heating wire 9 is installed in the cavity inside the support rod 8, and a power supply is installed in the cavity of the connecting shaft 7. The electric wire 9 is electrified to generate heat, thereby drying the powder coating that has fallen on the surface of the screen 4 and is affected by moisture; the grinding teeth 10 are fixed to the bottom surface of the support rod 8 close to the screen 4 and are arranged linearly; the transmission gear 11 is fixed to the outer surface of one end of the top of the connecting shaft 7; the motor 12 is installed on the top of the box 1, and the transmission end of the motor 12 is meshed with the transmission gear 11 through the gear, and the transmission gear 11 is driven to rotate by the motor 12, and the transmission gear 11 drives the connecting shaft 7 to rotate. When the connecting shaft 7 rotates, the support rod 8 It rotates inside the screen 4, and the support rod 8 pushes the powder coating accumulated on the surface of the screen 4, so that the powder coating is dispersed to different positions of the screen 4 for screening. When the support rod 8 contacts the powder coating, the heating wire 9 heats up and bakes along with the powder coating, reducing the moisture contained in the powder coating, thereby reducing the agglomeration and sticking problems of the powder coating. When the motor 12 drives the support rod 8 to rotate, the bottom of the grinding teeth 10 contacts the surface of the screen 4, thereby grinding the larger particles screened out from the surface of the screen 4, making it convenient for the screening of the powder coating.

[0030] A discharge port 3 is provided on the top of the box body 1, and the discharge port 3 is located on one side of the motor 12. When the powder coating is fed into the box body 1 through the discharge port 3, the powder coating can fall on the higher part of the screen 4, thereby facilitating the flow to the lower part.

[0031] Several fixed support plates 5 are fixed inside the box 1, and a movable support plate 6 is installed on the top of the fixed support plate 5 through a compression spring. The outer edge of the screen 4 is placed on the movable support plate 6, and the screen 4 is shaken by the shaking of the compression spring, thereby accelerating the screening efficiency of the screen 4.

[0032] An eccentric wheel 13 is movably mounted on the inner wall of the box body 1 at a position horizontal to the movable support plate 6. A second motor 14 is mounted on the outer wall of the box body 1 at a position corresponding to the eccentric wheel 13. The transmission end of the second motor 14 is connected to the eccentric wheel 13. The second motor 14 drives the eccentric wheel 13 to rotate, causing the eccentric wheel 13 to intermittently contact the screen 4, thereby causing the screen 4 to vibrate, increasing the shaking amplitude and frequency of the screen 4, and further improving the screen 4's screening efficiency for the powder coating.

[0033] A collecting hopper 15 is movably installed at the bottom of the box 1. An installation slot is provided on the outer wall of the bottom of the box 1. The collecting hopper 15 is inserted into the interior of the box 1 through the installation slot to collect the powder coating screened by the screen 4.

[0034] Working principle: the ground powder coating is fed into the interior of the box 1 from the discharge port 3, and because the discharge port 3 is located at the side of the top of the box 1, the powder coating will preferentially fall to the higher position of the screen 4 after entering the interior of the box 1, and the funnel-shaped design of the screen 4 makes the powder coating at the higher position slide to the lower position, thereby reducing the accumulation of coatings, starting the motor 2 14 to drive the eccentric wheel 13 to rotate, and the eccentric wheel 13 pushes the screen 4 to perform intermittent motion, so that the screen 4 vibrates, thereby accelerating the screening efficiency of the screen 4, and the transmission end of the motor 12 is meshed with the transmission gear 11 to transmit the power. The driving gear 11 drives the connecting shaft 7 to rotate, and the connecting shaft 7 drives the support rod 8 to rotate on the surface of the screen 4. By heating the electric heating wire 9, the paint on the surface of the screen 4 is dried to reduce the agglomeration and sticking problems of the paint, and further avoid the clogging of the mesh of the screen 4. When the support rod 8 rotates on the surface of the screen 4, the grinding teeth 10 fit with the surface of the screen 4, and then grind the larger particles left on the surface of the screen 4, so that the paint forms a finer powder, thereby improving the screening effect of the powder coating, and the paint screened by the screen 4 falls into the collecting bucket 15 for unified collection.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermosetting powder coating screening device, comprising a box (1), It is characterized in that Also included are: A top cover (2) is movably mounted on the top of the box body (1) via a hinge; The screen (4) is funnel-shaped and movably mounted inside the box (1); A connecting shaft (7) is mounted above the screen (4); A support rod (8) is fixed to the outer surface of the connecting shaft (7) near one end of the screen (4); The heating wire (9) is installed in the cavity inside the support rod (8); Grinding teeth (10) are fixed to the bottom surface of the support rod (8) on the side close to the screen (4) and are arranged in a linear manner; A transmission gear (11) is fixed to the outer surface of one end of the top of the connecting shaft (7); Motor 1 (12) is mounted on the top of the box (1).

2. The thermosetting powder coating screening device according to claim 1, characterized in that: A feeding opening (3) is provided on the top of the box body (1).

3. The thermosetting powder coating screening device according to claim 1, characterized in that: A plurality of fixed support plates (5) are fixed inside the box body (1), and a movable support plate (6) is mounted on the top of the fixed support plate (5) via a compression spring.

4. The thermosetting powder coating screening device according to claim 3, characterized in that: An eccentric wheel (13) is movably mounted at a position where the inner wall of the box body (1) is horizontal to the movable support plate (6).

5. The thermosetting powder coating screening device according to claim 4, characterized in that: The second motor (14) is installed at a position of the outer wall of the box body (1) corresponding to the eccentric wheel (13), and the transmission end of the second motor (14) is connected to the eccentric wheel (13).

6. The thermosetting powder coating screening device according to claim 1, characterized in that: A collecting hopper (15) is movably mounted on the bottom of the box body (1).

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