A multi-stage screening device for powder coatings

Abstract

The utility model discloses a multi-stage screening device for powder coatings, and relates to the technical field of screening devices. The multi-stage screening device for powder coatings comprises an outer cylinder; an inner screen tube is fixed to the inner side of the outer cylinder by bolts, a plurality of filter holes are opened on the inner screen tube, and a flipping frame is arranged on the inner side of the inner screen tube; a secondary screen is arranged below the inner screen tube, a plurality of filter holes are arranged on the secondary screen, and a plurality of guide rods are welded to the bottom of the secondary screen; the guide rod is slidably connected to the raised ear of the connecting box; in the utility model, the flipping frame drives the incoming powder to rotate, and screens it on the inner wall of the inner screen tube, and particles with small diameters will be filtered out through the filter holes of the inner screen tube and fall into the secondary screen below, and under the action of the guide rod slidingly connected to the raised ear and the sleeve spring on the outer side of the guide rod, the vibration motor rotates, the secondary screen vibrates, and the upper powder is vibrated and screened, and the double screening is more convenient to use.

Description

Technical Field

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

[0002] The screening machine is a vibrating screening machine that utilizes the relative movement between bulk materials and the screen surface to allow some particles to pass through the screen holes and separate materials such as sand, gravel, and crushed stone into different grades according to particle size.

[0003] Chinese utility model publication number CN 209565251 U discloses a centrifugal disc screening machine, comprising a housing, a cover, a handle, a fastening nut, a centrifugal disc, a first rotating shaft, a fixed cover, a clamping plate, a reinforcing rib, a rotating box, a bearing, a frequency conversion box, a second rotating shaft, a frequency conversion magnet ring, a second sleeve and a reset spring, wherein the housing is sleeved with an inner housing, the inner housing is sleeved with a rotating box, a centrifugal disc is arranged on the top of the rotating box, a first rotating shaft is sleeved at the center of the centrifugal disc, and a fastening nut is sleeved on the top of the first rotating shaft;

[0004] The above-mentioned centrifugal disc screening machine uses a centrifugal disc to screen the coal by centrifugal means to complete the coal screening, and uses centrifugal force to splash the material in a circle, so that fine-grained materials are thrown closer and large particles are thrown farther. Outer shell and inner shell silos with different diameters are designed around the disc to perform probability screening of various particle sizes. However, the particles thrown out in this way become larger from near to far, and certain tests are required when distinguishing the usable particles to screen out the unusable particles. The situation caused by this is that screening is required again, which cannot improve work efficiency. For this reason, we provide a multi-stage screening device for powder coatings, which screens out small particles through an inner screen tube, and then screens them through the secondary screen below in conjunction with a vibration motor, so that smaller particles can be screened. It has a multi-layer screening effect, is more convenient to use, and effectively compensates for the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a multi-stage screening device for powder coatings to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-stage screening device for powder coatings, comprising an outer cylinder; an inner screen tube is fixed to the inner side of the outer cylinder by bolts, the inner screen tube is provided with a plurality of filter holes, and a flip frame is arranged on the inner side of the inner screen tube; a secondary screen is arranged below the inner screen tube, the secondary screen is provided with a plurality of filter holes, and a plurality of guide rods are welded to the bottom of the secondary screen; the guide rod is slidably connected to the raised ear of the connecting box, and a spring is sleeved on the outer side of the guide rod, and the two ends of the spring are respectively welded to the secondary screen and the raised ear, and secondly, a vibration motor is fixed to the bottom of the secondary screen by bolts.

[0008] As a further technical solution of the utility model, a feed pipe is welded on one side of the outer cylinder, a Jiaolong roller is arranged on the inner side of the feed pipe, and the Jiaolong roller is connected with a seat bearing installed on the outer cylinder. Secondly, the Jiaolong roller is fixed to the flip frame by bolts; the outer cylinder is fixed to the frame by bolts.

[0009] As a further technical solution of the utility model, a discharge pipe is welded to the bottom of one end of the outer cylinder away from the feeding pipe, wherein a hopper is welded to the feeding pipe.

[0010] As a further technical solution of the utility model, one end of the dragon roller is connected to a pulley, two pulleys are provided, the other one is connected to the driving shaft of the driving motor, and the two pulleys are connected by a belt.

[0011] As a further technical solution of the utility model, an outer shell is arranged on the outer side of the two pulleys, the outer shell is welded to the feeding pipe, and the outer shell is fixed to the driving motor by bolts.

[0012] As a further technical solution of the utility model, the connection box is welded to the bottom of the outer cylinder, and the connection box and the outer cylinder are respectively connected with a side door and a barrel door through hinges; a discharge port is provided at the bottom of the connection box for easy discharge of materials.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the flip frame drives the incoming powder to rotate and screen on the inner wall of the inner screen tube. The particles with small diameters will be filtered out through the filter holes of the inner screen tube and fall into the secondary screen below. Under the action of the guide rod slidingly connecting the raised ear and the outer sleeve spring of the guide rod, the vibration motor rotates and the secondary screen vibrates, so that the powder above is vibrated and screened. The double screening is more convenient to use.

[0015] 2. In the utility model, after the material is added from the hopper and enters the feeding pipe, the dragon roller rotates, thereby driving the turning frame to rotate. While the dragon roller feeds the material, the turning frame turns over to screen the powder material. The large particles filtered out in the inner screen tube will be sent out through the discharge pipe on one side, which is more convenient to use;

[0016] 3. In the utility model, the driving shaft of the driving motor drives the connected pulley to rotate, and under the action of the belt, another pulley rotates successively, thereby providing power for the rotation of the dragon roller, and the outer protective shell on the outside plays a protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 This utility model Figure 1 Schematic diagram from another perspective.

[0019] Figure 3 This utility model Figure 1 Left view of .

[0020] Figure 4 This utility model Figure 3 Sectional view at AA.

[0021] Figure 5 This utility model Figure 4 A partial enlarged view of point B.

[0022] In the figure: 1-frame, 2-outer cylinder, 3-barrel door, 4-discharging pipe, 5-inner screen tube, 6-turning frame, 7-feeding pipe, 8-dragon roller, 9-pulley, 10-belt, 11-driving motor, 12-outer casing, 13-connecting box, 14-side door, 15-secondary screen, 16-vibrating motor, 17-guide rod, 18-spring, 19-raised ear, 20-discharging port, 21-hopper. DETAILED DESCRIPTION

[0023] 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5In an embodiment of the utility model, a multi-stage screening device for powder coatings includes an outer cylinder 2; an inner screen tube 5 is fixed to the inner side of the outer cylinder 2 by bolts, a plurality of filter holes are provided on the inner screen tube 5, and a flip frame 6 is provided on the inner side of the inner screen tube 5; a secondary screen 15 is provided below the inner screen tube 5, a plurality of filter holes are provided on the secondary screen 15, and a plurality of guide rods 17 are welded to the bottom of the secondary screen 15; the guide rod 17 is slidably connected to the protruding ear 19 of the connecting box 13, and a spring 18 is sleeved on the outer side of the guide rod 17, and the two ends of the spring 18 are respectively welded to the secondary screen 15 and the protruding ear 19, and secondly, a vibration motor 16 is fixed to the bottom of the secondary screen 15 by bolts.

[0025] By adopting the above technical solution, the turning frame 6 drives the incoming powder to rotate and screen on the inner wall of the inner screen tube 5. The particles with small diameters will be filtered out through the filter holes of the inner screen tube 5 and fall into the secondary screen 15 below. Under the action of the guide rod 17 slidingly connected to the raised ear 19 and the spring 18 sleeved on the outer side of the guide rod 17, the vibration motor 16 rotates and the secondary screen 15 vibrates, so that the powder above is vibrated and screened, and the double screening is more convenient to use.

[0026] In this embodiment, a feed pipe 7 is welded to one side of the outer cylinder 2, a Jiaolong roller 8 is arranged on the inner side of the feed pipe 7, and the Jiaolong roller 8 is connected with a seat bearing installed on the outer cylinder 2. Secondly, the Jiaolong roller 8 is fixed to the flip frame 6 by bolts; the outer cylinder 2 is fixed to the frame 1 by bolts.

[0027] Furthermore, a discharge pipe 4 is welded to the bottom of one end of the outer cylinder 2 away from the feed pipe 7 , wherein a hopper 21 is welded to the feed pipe 7 .

[0028] By adopting the above technical solution, after adding materials from the hopper 21 and entering the feeding pipe 7, the dragon roller 8 rotates, thereby driving the turning frame 6 to rotate. While the dragon roller 8 feeds the materials, the turning frame 6 turns to screen the powder. The large particles filtered out in the inner screen tube 5 will be sent out through the discharge pipe 4 on one side, which is more convenient to use.

[0029] In this embodiment, one end of the dragon roller 8 is connected to a pulley 9, two pulleys 9 are provided, the other one is connected to the driving shaft of the driving motor 11, and the two pulleys 9 are connected by a belt 10.

[0030] Furthermore, an outer protective shell 12 is provided on the outer side of the two pulleys 9, and the outer protective shell 12 is welded to the feeding pipe 7, and the outer protective shell 12 is fixed to the driving motor 11 by bolts.

[0031] By adopting the above technical solution, the driving shaft of the driving motor 11 drives the connected pulley 9 to rotate. Under the action of the belt 10, the other pulley 9 rotates successively, thereby providing power for the rotation of the dragon roller 8, and the outer protective shell 12 on the outside plays a protective role.

[0032] In this embodiment, the connection box 13 is welded to the bottom of the outer tube 2, and the connection box 13 and the outer tube 2 are respectively connected with a side door 14 and a barrel door 3 through hinges; the bottom of the connection box 13 is provided with a discharge port 20 for easy discharge of materials.

[0033] By adopting the above technical solution, the side door 14 outside the connecting box 13 is convenient for taking out the screened powder, the barrel door 3 outside the outer cylinder 2 is convenient for checking the use of the inner screen tube 5, and the discharge port 20 below is convenient for receiving materials.

[0034] The working principle of the utility model is as follows: when in use, firstly, the rod is directly inserted from the rod inlet 5 to the rod outlet 8, so that the rod is polished on the inner side of the protective shell 1, and the polished rod is conveniently directly withdrawn from the other side, and the rod inlet 5 and the rod outlet 8 both extend outward to prevent one end of the rod from falling into the inner side of the protective shell 1; the rod is polished in the protective shell 1, and three motors 4 drive three polishing rollers 9 to rotate, and the three polishing rollers 9 are installed at 120 degrees, which will effectively polish the surface of the rod, and three suction rollers are started during the polishing process. The fans 10, three suction fans 10 will suck air downward through the air-permeable net 10 of the protective shell 1, so that the dust during the grinding process is sucked to the bottom of the protective shell 1, so that the dust will not overflow, thereby ensuring the dust removal effect; the three suction fans 10 will suck the dust from above to above the collecting net 7, and the collecting net 7 will block the dust to prevent it from entering the suction fans 10 and then being blown out. When a large amount of dust is collected, the collecting trough 6 is pulled out of the protective shell 1 through the sliding connection of the T-shaped slide groove and the T-shaped slide rail, which is convenient for centralized treatment of the dust.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage screening device for powder coatings, characterized in that: The invention comprises an outer cylinder (2); an inner screen tube (5) is fixed to the inner side of the outer cylinder (2) by bolts, the inner screen tube (5) is provided with a plurality of filter holes, and a flip frame (6) is arranged on the inner side of the inner screen tube (5); a secondary screen (15) is arranged below the inner screen tube (5), the secondary screen (15) is provided with a plurality of filter holes, and a plurality of guide rods (17) are welded to the bottom of the secondary screen (15); the guide rod (17) is slidably connected to a protruding ear (19) of a connection box (13), and a spring (18) is sleeved on the outer side of the guide rod (17), and the two ends of the spring (18) are respectively welded to the secondary screen (15) and the protruding ear (19); secondly, a vibration motor (16) is fixed to the bottom of the secondary screen (15) by bolts.

2. The multi-stage screening device for powder coating according to claim 1, characterized in that: A feed pipe (7) is welded to one side of the outer cylinder (2), a Jiaolong roller (8) is arranged on the inner side of the feed pipe (7), and the Jiaolong roller (8) is connected to a bearing seat installed on the outer cylinder (2). Secondly, the Jiaolong roller (8) is fixed to the flip frame (6) by bolts; the outer cylinder (2) is fixed to the frame (1) by bolts.

3. The multi-stage screening device for powder coating according to claim 1, characterized in that: A discharge pipe (4) is welded to the bottom of one end of the outer cylinder (2) away from the feeding pipe (7), wherein a hopper (21) is welded to the feeding pipe (7).

4. The multi-stage screening device for powder coating according to claim 2, characterized in that: One end of the dragon roller (8) is connected with a pulley (9), two pulleys (9) are provided, the other of which is connected with the driving shaft of the driving motor (11), and the two pulleys (9) are connected with each other via a belt (10).

5. The multi-stage screening device for powder coating according to claim 4, characterized in that: An outer protective shell (12) is arranged outside the two pulleys (9), and the outer protective shell (12) is welded to the feeding pipe (7), and the outer protective shell (12) is fixed to the driving motor (11) by bolts.

6. The multi-stage screening device for powder coating according to claim 1, characterized in that: The connection box (13) is welded to the bottom of the outer cylinder (2), and the connection box (13) and the outer cylinder (2) are respectively connected with a side door (14) and a barrel door (3) through hinges; the bottom of the connection box (13) is provided with a discharge port (20) for easy discharge of materials.

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