Powder coating impurity screening device

Abstract

The utility model discloses a powder coating impurity screening device which comprises a base, a discharging port is formed in the outer side of the base, a screening box is connected to the inner wall of the base in a sliding mode, the top end of the screening box penetrates through and is fixedly connected with a feeding port, an impurity removing mechanism is arranged in the screening box, and the top end of the screening box is fixedly connected with the feeding port. A support is fixedly connected to the inner wall of the screening box, a rotating shaft is fixedly connected to the top end of the support, a screening plate is fixedly connected to the outer wall of the rotating shaft, a rotating rod is rotated to drive a gear to rotate, the gear rotates to drive a rack to move upwards, and the rack moves upwards to drive a connecting arm to move upwards. The connecting arm moves upwards to extrude the sieve plate, the sieve plate is extruded to drive the rotating shaft to rotate and incline, at the moment, the baffle is pulled, the baffle drives the torsional spring rod to deform, the baffle breaks away from shielding of the impurity discharging opening, at the moment, impurities located above the sieve plate penetrate through the impurity discharging opening and enter the collecting frame, and workers can conveniently clean the impurities.

Description

Technical Field

[0001] This utility model relates to the field of powder coating processing technology, specifically to a powder coating impurity screening device. Background Technology

[0002] Powder coating is a type of coating that exists in the form of solid powder. It is applied to the surface of a workpiece through electrostatic spraying or fluidized bed processes, and then cured by heating to form a uniform and durable coating. During the production process, powder coatings may contain impurities, which can affect their normal use later. Therefore, screening devices are used to screen the coatings.

[0003] Authorization announcement number CN218531757U discloses a screening device for easy removal of impurities in powder coating production, relating to the field of powder coating technology. The proposed solution includes a housing, a fixed plate mounted on the top side of the housing, a feeding mechanism mounted on the top of the fixed plate, a vibration assembly mounted on the fixed plate, two symmetrically mounted fixed blocks on one side of the top of the housing, and a screening screen plate rotatably connected between the two fixed blocks via a pin. One end of the screening screen plate overlaps the vibration assembly and is placed at an angle. A bottom plate is connected to the bottom of the housing via a support rod, and a discharge port is provided at the bottom of the housing. In this invention, a vibration motor drives the support plate to vibrate, which in turn drives the screening screen plate to vibrate, improving screening efficiency. By flipping the screening screen plate, it is positioned outside the housing, allowing for easy cleaning of the screening screen plate and facilitating cleaning of the interior of the housing, making it quite convenient.

[0004] In the above technical solution, the vibration of the screening screen plate is used to screen the impurities inside the powder coating. However, during the screening process, since the screening screen plate is located outside the box, some coating will be vibrated to the outside of the box, which will affect the working environment and waste some raw materials. Utility Model Content

[0005] The purpose of this invention is to provide a powder coating impurity screening device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a powder coating impurity screening device, comprising a base, an outlet on the outer side of the base, a screening box slidably connected to the inner wall of the base, an inlet through and fixedly connected to the top of the screening box, an impurity removal mechanism inside the screening box, a support fixedly connected to the inner wall of the screening box, a rotating shaft fixedly connected to the top of the support, a sieve plate fixedly connected to the outer wall of the rotating shaft, and an impurity discharge port on the outer side of the screening box.

[0007] As a further preferred embodiment of this technical solution, a torsion spring rod is fixedly connected to the inner wall of the discharge port, a baffle is fixedly connected to the outer wall of the torsion spring rod, and a collection frame is fixedly connected to the outer wall of the screening box, with the collection frame located below the discharge port.

[0008] As a further preferred embodiment of this technical solution, the inner wall of the screening box is fixedly connected to an outer shell, the inner wall of the outer shell is rotatably connected to a gear, a rotating rod is fixedly connected to one end of the gear near the outer shell, and a rack is slidably connected to the inner wall of the outer shell.

[0009] As a further preferred embodiment of this technical solution, the rack meshes with the gear, and a connecting arm is fixedly connected to the top end of the rack. The connecting arm passes through and is slidably connected to the top end of the outer shell, and the top end of the connecting arm is in contact with the bottom end of the sieve plate.

[0010] As a further preferred embodiment of this technical solution, the base is provided with a vibration mechanism inside, and two support plates are fixedly connected to the inner wall of the base, with two columns fixedly connected to the top of the support plates.

[0011] As a further preferred embodiment of this technical solution, springs are fixedly connected to the inner bottom ends of the two columns, and extrusion rods are fixedly connected to the top ends of the springs. The top ends of the extrusion rods are fixedly connected to the bottom ends of the screening box, and connecting plates are fixedly connected to the outer walls of the extrusion rods.

[0012] As a further preferred embodiment of this technical solution, a motor is fixedly connected to the outer wall of the base, an output shaft is fixedly connected to one end of the motor near the base, and an extrusion roller is fixedly connected to the outer wall of the end of the output shaft inside the base, the extrusion roller being located below the connecting plate.

[0013] This utility model provides a powder coating impurity screening device, which has the following beneficial effects:

[0014] (1) This utility model rotates a rotating rod, which drives the gear to rotate. The gear rotates and drives the rack to move upward. The rack moves upward and drives the connecting arm to move upward. The connecting arm moves upward and squeezes the screen plate. The screen plate is squeezed and drives the rotating shaft to rotate and tilt. At this time, the baffle is pulled, and the baffle drives the torsion spring rod to deform. The baffle is released from the obstruction of the discharge port. At this time, the impurities above the screen plate pass through the discharge port and enter the inside of the collection frame, which is convenient for the staff to clean.

[0015] (2) This utility model uses a motor to drive the output shaft to rotate, the output shaft to drive the extrusion wheel to rotate, the extrusion wheel to rotate and extrude the connecting plate, the connecting plate to move upward under the pressure, the connecting plate to move and the extrusion rod to extrude the screening box, so that the screening box moves. When the extrusion wheel is released from the pressure, the stretched spring drives the extrusion rod to reset, and the extrusion wheel continues to rotate, causing the screening box to vibrate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional appearance structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the impurity removal mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the vibration mechanism structure of this utility model.

[0020] In the diagram: 1. Base; 2. Discharge port; 3. Screening box; 4. Feed port; 5. Impurity removal mechanism; 51. Support; 52. Rotating shaft; 53. Screen plate; 54. Impurity discharge port; 55. Torsion spring rod; 56. Baffle; 57. Collection frame; 58. Outer shell; 59. Gear; 510. Rotating rod; 511. Rack; 512. Connecting arm; 6. Vibration mechanism; 61. Support plate; 62. Column; 63. Spring; 64. Extrusion rod; 65. Connecting plate; 66. Motor; 67. Output shaft; 68. Extrusion wheel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a powder coating impurity screening device includes a base 1, an outlet 2 on the outer side of the base 1, a screening box 3 slidably connected to the inner wall of the base 1, an inlet 4 through and fixedly connected to the top of the screening box 3, an impurity removal mechanism 5 inside the screening box 3, a bracket 51 fixedly connected to the inner wall of the screening box 3, a rotating shaft 52 fixedly connected to the top of the bracket 51, a sieve plate 53 fixedly connected to the outer wall of the rotating shaft 52, and an impurity discharge port 54 on the outer side of the screening box 3.

[0023] Among them, a torsion spring rod 55 is fixedly connected to the inner wall of the discharge port 54, a baffle 56 is fixedly connected to the outer wall of the torsion spring rod 55, and a collection frame 57 is fixedly connected to the outer wall of the screening box 3. The collection frame 57 is located below the discharge port 54.

[0024] The baffle 56 can shield the screening box 3, thereby preventing the powder coating from leaking out.

[0025] The inner wall of the screening box 3 is fixedly connected to the outer shell 58, the inner wall of the outer shell 58 is rotatably connected to the gear 59, the end of the gear 59 near the outer shell 58 is fixedly connected to the rotating rod 510, and the inner wall of the outer shell 58 is slidably connected to the rack 511.

[0026] The rotation of gear 59 can drive rack 511 to move vertically.

[0027] Among them, the rack 511 meshes with the gear 59, and the top end of the rack 511 is fixedly connected to the connecting arm 512. The connecting arm 512 passes through and is slidably connected to the top end of the outer shell 58, and the top end of the connecting arm 512 is attached to the bottom end of the sieve plate 53.

[0028] The connecting arm 512 can be used to press the screen plate 53 by moving it upward, causing the screen plate 53 to shift.

[0029] The base 1 is equipped with a vibration mechanism 6, and two support plates 61 are fixedly connected to the inner wall of the base 1. Two columns 62 are fixedly connected to the top of the support plates 61.

[0030] Vibration mechanism 6 can cause screening box 3 to vibrate, so that sieve plate 53 can further screen the coating.

[0031] Among them, springs 63 are fixedly connected to the bottom of the two columns 62, and extrusion rods 64 are fixedly connected to the top of the springs 63. The top of the extrusion rods 64 is fixedly connected to the bottom of the screening box 3, and a connecting plate 65 is fixedly connected to the outer wall of the extrusion rods 64.

[0032] Spring 63, relying on its own elasticity, can limit the position of the compression rod 64 without being affected by external forces.

[0033] Among them, a motor 66 is fixedly connected to the outer wall of the base 1, an output shaft 67 is fixedly connected to the end of the motor 66 near the base 1, and an extrusion roller 68 is fixedly connected to the outer wall of the end of the output shaft 67 inside the base 1. The extrusion roller 68 is located below the connecting plate 65.

[0034] The extrusion roller 68 rotates and can press the connecting plate 65, causing the extrusion rod 64 to press the screening box 3.

[0035] This utility model provides a powder coating impurity screening device, the specific working principle of which is as follows:

[0036] In use, the powder coating to be screened is poured into the screening box 3 through the feed inlet 4. The powder coating falls onto the sieve plate 53, which is used to screen the powder coating. The motor 66 is turned on, which drives the output shaft 67 to rotate. The rotation of the output shaft 67 drives the extrusion roller 68 to rotate. The extrusion roller 68 rotates and squeezes the connecting plate 65. The connecting plate 65 moves upward under the pressure. The movement of the connecting plate 65 drives the extrusion rod 64 to squeeze the screening box 3, causing the screening box 3 to move. When the extrusion roller 68 is released from the pressure, the stretched spring 63 drives the extrusion rod 64 to return to its original position. The continuous rotation of the extrusion roller 68 causes the screening box 3 to vibrate. After the selection process, impurities contained in the powder coating remain above the sieve plate 53. Rotating the rotating rod 510 causes the gear 59 to rotate, which in turn causes the rack 511 to move upward. The upward movement of the rack 511 causes the connecting arm 512 to move upward, which in turn squeezes the sieve plate 53. The sieve plate 53 is squeezed, causing the rotating shaft 52 to rotate and tilt. At this time, the baffle 56 is pulled, and the baffle 56 causes the torsion spring rod 55 to deform. The baffle 56 then releases its obstruction of the discharge port 54, allowing the impurities above the sieve plate 53 to pass through the discharge port 54 and enter the collection frame 57 for easy cleaning by the staff.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder coating impurity screening device, comprising a base (1), characterized in that: The base (1) has a discharge port (2) on its outer side. A screening box (3) is slidably connected to the inner wall of the base (1). A feed inlet (4) is fixedly connected to the top of the screening box (3). A cleaning mechanism (5) is provided inside the screening box (3). A bracket (51) is fixedly connected to the inner wall of the screening box (3). A rotating shaft (52) is fixedly connected to the top of the bracket (51). A screen plate (53) is fixedly connected to the outer wall of the rotating shaft (52). A discharge port (54) is provided on the outer side of the screening box (3).

2. The powder coating impurity screening device according to claim 1, characterized in that: The inner wall of the discharge port (54) is fixedly connected to a torsion spring rod (55), the outer wall of the torsion spring rod (55) is fixedly connected to a baffle (56), the outer wall of the screening box (3) is fixedly connected to a collection frame (57), and the collection frame (57) is located below the discharge port (54).

3. The powder coating impurity screening device according to claim 2, characterized in that: The inner wall of the screening box (3) is fixedly connected to the outer shell (58), and the inner wall of the outer shell (58) is rotatably connected to the gear (59). The end of the gear (59) near the outer shell (58) is fixedly connected to the rotating rod (510), and the inner wall of the outer shell (58) is slidably connected to the rack (511).

4. The powder coating impurity screening device according to claim 3, characterized in that: The rack (511) meshes with the gear (59), and a connecting arm (512) is fixedly connected to the top of the rack (511). The connecting arm (512) passes through and is slidably connected to the top of the outer shell (58). The top of the connecting arm (512) is in contact with the bottom of the sieve plate (53).

5. The powder coating impurity screening device according to claim 4, characterized in that: The base (1) is equipped with a vibration mechanism (6) inside. Two support plates (61) are fixedly connected to the inner wall of the base (1), and two columns (62) are fixedly connected to the top of the support plates (61).

6. The powder coating impurity screening device according to claim 5, characterized in that: Springs (63) are fixedly connected to the bottom of the two columns (62), and extrusion rods (64) are fixedly connected to the top of the springs (63). The top of the extrusion rods (64) is fixedly connected to the bottom of the screening box (3), and a connecting plate (65) is fixedly connected to the outer wall of the extrusion rods (64).

7. The powder coating impurity screening device according to claim 6, characterized in that: A motor (66) is fixedly connected to the outer wall of the base (1). An output shaft (67) is fixedly connected to one end of the motor (66) near the base (1). An extrusion wheel (68) is fixedly connected to the outer wall of the end of the output shaft (67) inside the base (1). The extrusion wheel (68) is located below the connecting plate (65).

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