Powder recovery device for spray booth

Abstract

The utility model relates to the technical field of electrostatic paint spraying, in particular to a paint spraying chamber powder recovery device which comprises a collecting frame, slopes are arranged on the two sides of the interior of the collecting frame, sliding grooves are formed in the two sides of the outer surface of the collecting frame, powder screening structures are arranged in the sliding grooves, and a powder collecting hopper is fixedly installed in the collecting frame. When the device is used, a collecting frame is placed below a paint spraying workbench, redundant powder falls onto a slope and slides to the position above a screen plate during paint spraying, at the moment, a first motor is started, an output shaft of the first motor drives an oval plate to rotate, and due to the fact that the side line of the oval plate makes contact with a turning plate, when the oval plate rotates, through contraction of springs on the two sides, the oval plate can rotate; according to the paint spraying device, the screen plate is driven to do reciprocating motion, so that powder covering the top of the screen plate can be screened into the powder collecting hopper, the purpose of recycling sprayed redundant powder in the paint spraying process is achieved, the dust raising phenomenon caused by powder accumulation in a paint spraying chamber is avoided, and the safety of workers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic spraying technology, specifically to a powder recovery device for a spray booth. Background Technology

[0002] Electrostatic spraying utilizes the principle of a high-voltage electrostatic field. Negatively charged paint particles are propelled by the electric field towards the positively charged surface of the workpiece and are attracted, forming a uniform and durable paint film. Its basic principle is similar to electrostatic dust removal, using a high-voltage electrostatic field and the principle of like charges repelling and unlike charges attracting to perform the spraying process.

[0003] When electrostatic spraying is performed in a spray booth, the lack of a structure to collect excess sprayed powder leads to powder accumulation inside the spray booth. Manual collection can easily cause dust pollution, which can affect the health of workers. Based on the shortcomings of existing technology, this utility model designs a powder recovery device for spray booths. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a powder recovery device for spray booths, which has the advantage of collecting excess powder during spraying.

[0005] This utility model provides the following technical solution: a powder recovery device for a paint spray booth, comprising a collection frame, with ramps on both sides of the inner side of the collection frame, sliding grooves on both sides of the outer surface of the collection frame, a powder sieving structure inside the sliding grooves, and a powder collection hopper fixedly installed inside the collection frame; the powder sieving structure includes a screen plate and a support plate, the screen plate being slidably connected to the two sliding grooves, a turning plate being fixedly installed on one side of the outer surface of the screen plate, two symmetrical springs being installed on one side of the turning plate, one end of the two springs being fixedly connected to the collection frame, the support plate being fixedly connected to the collection frame, the support plate being positioned above the screen plate, a first fixing ring being installed on the top of the support plate, a first motor being installed inside the first fixing ring, an elliptical plate being installed on one end of the output shaft of the first motor, and the edge of the elliptical plate contacting the turning plate.

[0006] As a preferred embodiment of this utility model, the powder collecting hopper is located below the screen plate and has an outlet.

[0007] As a preferred embodiment of this utility model, a discharge port is provided on one side of the outer surface of the collection frame, and a powder frame is fixedly installed on one side of the discharge port by bolts.

[0008] As a preferred embodiment of the present invention, a transfer structure is fixedly installed on one side of the outer surface of the collection frame, the transfer structure including a second fixing ring and a support base.

[0009] As a preferred embodiment of this utility model, the second fixing ring is fixed to one side of the collection frame, and a second motor is fixedly installed inside the second fixing ring.

[0010] As a preferred embodiment of this utility model, an auger is fixedly installed at one end of the output shaft of the second motor, and the auger extends to the discharge port.

[0011] In a preferred embodiment of this invention, the support seat is located at the bottom of the inner cavity of the collection frame, and the support seat clamps the auger.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This powder recovery device for a spray booth, comprising a powder sieving structure, a ramp, and a powder collection hopper, is used by placing a collection frame under the spray booth. During spraying, excess powder falls onto the ramp and slides onto the screen plate. At this time, the first motor is started, causing its output shaft to rotate the elliptical plate. Since the edge of the elliptical plate is in contact with the turning plate, the rotation of the elliptical plate, through the contraction of the springs on both sides, drives the screen plate to reciprocate. This allows the powder covering the top of the screen plate to be sieved into the powder collection hopper, thereby achieving the purpose of recovering excess powder sprayed out during the spraying process, avoiding dust pollution caused by powder accumulation inside the spray booth, and ensuring the safety of the staff.

[0014] 2. The powder recovery device for a paint booth, through a transfer structure and a powder collection hopper, allows powder falling into the collection hopper to slide down from the opening through an inclined plane and fall into the auger. At this time, by starting the second motor, its output shaft drives the auger to rotate, thereby transporting the collected powder to the powder frame for storage, so as to be recycled and reused later. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the slope structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the powder frame structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the powder sieving structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the transfer structure of this utility model.

[0020] In the diagram: 1. Collection frame; 2. Sliding trough; 3. Powder sieving structure; 31. Screen plate; 32. Support plate; 33. Turning plate; 34. Spring; 35. First fixing ring; 36. First motor; 37. Elliptical plate; 4. Transfer structure; 41. Second fixing ring; 42. Support base; 43. Second motor; 44. Screw conveyor; 5. Inclined ramp; 6. Discharge port; 7. Powder frame; 8. Powder collection hopper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 A powder recovery device for a paint spray booth includes a collection frame 1. Inclines 5 are provided on both sides of the interior of the collection frame 1. Sliding grooves 2 are provided on both sides of the outer surface of the collection frame 1. A powder sieving structure 3 is provided inside the sliding grooves 2. A powder collection hopper 8 is fixedly installed inside the collection frame 1. The powder sieving structure 3 includes a screen plate 31 and a support plate 32. The screen plate 31 is slidably connected to the two sliding grooves 2. A turning plate 33 is fixedly installed on one side of the outer surface of the screen plate 31. Two symmetrical springs 34 are installed on one side of the turning plate 33. One end of each spring 34 is fixedly connected to the collection frame 1. The support plate 32 is fixedly connected to the collection frame 1 and is positioned above the screen plate 31. A first fixing ring 35 is installed on the top of the support plate 32. A first motor 36 is installed inside the first fixing ring 35. An elliptical plate 37 is installed at one end of the output shaft of the first motor 36, and the edge of the elliptical plate 37 contacts the turning plate 33.

[0023] Please see Figure 3 and Figure 5 The powder collection hopper 8 is located below the screen plate 31 and has an outlet. A discharge port 6 is provided on one side of the outer surface of the collection frame 1, and a powder frame 7 is fixedly installed on one side of the discharge port 6 by bolts.

[0024] The powder falling from the screen plate 31 is collected in the powder collection hopper 8. The collected powder is discharged through the discharge port 6. The collected powder is stored in the powder frame 7 for subsequent reuse.

[0025] Please see Figure 5A transfer structure 4 is fixedly installed on one side of the outer surface of the collection frame 1. The transfer structure 4 includes a second fixing ring 41 and a support base 42. The second fixing ring 41 is fixed to one side of the collection frame 1, and a second motor 43 is fixedly installed inside the second fixing ring 41. An auger 44 is fixedly installed at one end of the output shaft of the second motor 43, and the auger 44 extends to the discharge port 6. The support base 42 is located at the bottom of the inner cavity of the collection frame 1, and the support base 42 clamps the auger 44.

[0026] The powder falling into the powder collection hopper 8 slides down the inclined plane from the opening and falls into the auger 44. At this time, the second motor 43 is started, and its output shaft drives the auger 44 to rotate, thereby transporting the collected powder to the powder frame 7 for storage.

[0027] Working principle: When a powder recovery device for a spray booth is used, the collection frame 1 is first placed under the spray booth. During spraying, excess powder falls onto the ramp 5 and slides onto the screen plate 31. At this time, the first motor 36 is started, and its output shaft drives the elliptical plate 37 to rotate. Since the edge of the elliptical plate 37 is in contact with the turning plate 33, when the elliptical plate 37 rotates, the contraction of the springs 34 on both sides drives the screen plate 31 to reciprocate. Thus, the powder covering the top of the screen plate 31 can be screened into the powder collection hopper 8. The powder falling into the powder collection hopper 8 slides down the ramp from the opening and falls into the auger 44. The second motor 43 is started, and its output shaft drives the auger 44 to rotate, thereby transporting the collected powder to the powder frame 7 for storage, so as to be recycled and reused later.

[0028] 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 recovery device for a spray booth, comprising a collection frame (1), characterized in that: The collection frame (1) has ramps (5) on both sides inside, and sliding grooves (2) are opened on both sides of the outer surface of the collection frame (1). The sliding grooves (2) have a powder sieving structure (3) inside, and a powder collecting hopper (8) is fixedly installed inside the collection frame (1). The sieving structure (3) includes a screen plate (31) and a support plate (32). The screen plate (31) is slidably connected to two sliding grooves (2). A turning plate (33) is fixedly installed on one side of the outer surface of the screen plate (31). Two symmetrical springs (34) are installed on one side of the turning plate (33). One end of the two springs (34) is fixedly connected to the collection frame (1). The support plate (32) is fixedly connected to the collection frame (1). The support plate (32) is set above the screen plate (31). A first fixing ring (35) is installed on the top of the support plate (32). A first motor (36) is installed inside the first fixing ring (35). An elliptical plate (37) is installed at one end of the output shaft of the first motor (36). The edge of the elliptical plate (37) is in contact with the turning plate (33).

2. The powder recovery device for a paint spray booth according to claim 1, characterized in that: The powder collection hopper (8) is located below the screen plate (31) and has an outlet.

3. The powder recovery device for a paint spray booth according to claim 1, characterized in that: The outer surface of the collection frame (1) is provided with a discharge port (6), and a powder frame (7) is fixedly installed on one side of the discharge port (6) by bolts.

4. The powder recovery device for a paint spray booth according to claim 1, characterized in that: A transfer structure (4) is fixedly installed on one side of the outer surface of the collection frame (1). The transfer structure (4) includes a second fixing ring (41) and a support base (42).

5. A powder recovery device for a paint spray booth according to claim 4, characterized in that: The second fixing ring (41) is fixed on one side of the collection frame (1), and the second motor (43) is fixedly installed inside the second fixing ring (41).

6. A powder recovery device for a paint spray booth according to claim 5, characterized in that: The output shaft of the second motor (43) is fixedly mounted with an auger (44), which extends to the discharge port (6).

7. A powder recovery device for a paint spray booth according to claim 4, characterized in that: The support seat (42) is located at the bottom of the inner cavity of the collection frame (1), and the support seat (42) clamps the auger (44).

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