Powder coating recovery negative pressure collection device

Abstract

The utility model relates to powder coating recovery device technical field, concretely is a kind of powder coating recovery negative pressure collection device, including support frame, filter cavity and collection box, the top fixed penetration connection of filter cavity is connected with suction mechanism, the bottom fixed penetration connection of filter cavity is connected with connecting pipe, one end fixed connection of connecting pipe is connected with negative pressure pump, the inside sliding connection of sliding groove has filter screen, vibration mechanism is arranged below filter screen, vibration mechanism is fixedly installed on the outer surface of filter cavity, the top fixed connection of mounting bracket has motor, the output end fixed connection of motor has rotating rod, the outer surface fixed connection of rotating rod has vibrating block.The utility model, by the setting of filter screen and vibration mechanism, both can intercept non-target impurities, can also ensure that powder coating passes through smoothly, and the small amplitude vibration generated by vibrating block impact contact block, can avoid impurity blockage upper mesh, greatly improve the recycling value of powder.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating recycling devices, and in particular to a negative pressure collection device for powder coating recycling. Background Technology

[0002] Powder coatings, due to their solvent-free nature, high utilization rate, and excellent coating performance, have been widely used in automobile manufacturing, furniture coating, and hardware processing. However, during powder coating operations, factors such as the spraying process and workpiece shape can lead to material waste if not promptly recycled. This can result in excessive dust concentrations in the workshop air, endangering the respiratory health of operators and posing a risk of occupational diseases.

[0003] Existing technologies, such as the utility model patent with publication number CN211520957U, disclose a negative pressure recovery system for an environmentally friendly chemical material collection device, belonging to the field of chemical production technology. This system includes a support frame, a collection hopper, a feeding port, a discharging pipe, a first negative pressure component, a second negative pressure component, and a recovery box. The support frame is installed on the ground, the collection hopper is welded to the support frame, the feeding port is located at the top of the collection hopper, the discharging pipe is located at the bottom of the collection hopper, and the recovery box is located beside the support frame. The first negative pressure component is located above the feeding port, and one end of the first negative pressure component is connected to the recovery box. The second negative pressure component is located above the discharging pipe, and one end of the second negative pressure component is connected to the recovery box. This utility model solves the problem that existing chemical material collection devices, when feeding and discharging powdered materials, cause a certain amount of material to mix into the workshop air, affecting the workshop's air quality and resulting in material waste.

[0004] In existing technologies, a prominent problem exists in the powder coating recycling process: non-target impurities are often recovered along with the powder coating, especially fine fibrous impurities such as hair. The inclusion of these foreign impurities significantly reduces the purity of the recycled powder coating, leading to a decline in the quality of the recycled material. Due to insufficient purity, these contaminated recycled powder coatings will encounter many problems in subsequent reuse processes, such as poor coating effects and unstable coating performance, seriously affecting the reuse value and performance of the recycled material. This impurity contamination not only wastes resources but also increases the difficulty and cost of subsequent processing. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that some non-target impurities are recycled together, affecting the purity of powder coatings, and to propose a negative pressure collection device for powder coating recycling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a negative pressure collection device for powder coating recovery, comprising a support frame, a filter chamber and a collection box.

[0007] A filter chamber is fixedly connected inside the support frame. A suction mechanism is fixedly connected through the top of the filter chamber. A connecting pipe is fixedly connected through the bottom of the filter chamber. A negative pressure pump is fixedly connected to one end of the connecting pipe. The output end of the negative pressure pump is connected through the collection box. A sliding groove is provided inside the filter chamber. A filter screen plate is slidably connected inside the sliding groove. A vibration mechanism is provided below the filter screen plate. The vibration mechanism is fixedly installed on the outer surface of the filter chamber.

[0008] The vibration mechanism includes a mounting frame fixedly connected to the outer surface of the filter chamber. A motor is fixedly connected to the top of the mounting frame. A rotating rod is fixedly connected to the output end of the motor. The end of the rotating rod away from the motor is rotatably connected to the inner wall of the filter chamber. A vibrating block is fixedly connected to the outer surface of the rotating rod.

[0009] Furthermore, a locking block is fixedly connected to the side of the filter screen plate, the locking block cooperates with the sliding groove, and a contact block is fixedly connected to the bottom edge of the filter screen plate, the contact block being located directly above the vibrating block.

[0010] Furthermore, the suction mechanism includes an arc-shaped tube that extends through the top of the filter chamber, with a flexible corrugated tube extending through the end of the arc-shaped tube away from the filter chamber. A limit ring is fixedly connected to the outer surface of the flexible corrugated tube, and a suction cup is fixedly connected to the end of the flexible corrugated tube away from the arc-shaped tube.

[0011] Furthermore, a fixing structure is fixedly connected to the outer surface of the support frame, and the fixing structure is symmetrically distributed on one side of the outer surface of the support frame.

[0012] Furthermore, the fixing structure includes a connecting block fixedly connected to the outer surface of the support frame, a screw threadedly connected to the inside of the connecting block, a semi-circular ring rotatably connected to one end of the screw, and a rotating disk fixedly connected to the other end of the screw.

[0013] Furthermore, a cleaning port is fixedly connected to the outer surface of the filter chamber, the cleaning port is located above the filter screen plate, and a sealing door is hinged to the outer surface of the cleaning port.

[0014] Furthermore, the collection box has a recycling chamber inside, and a protective door is hinged to the outer surface of the collection box.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] In this invention, by designing the filter screen as a double-layer composite structure with an upper layer for preventing impurities and a lower layer for passing powder, and combining it with the periodic vibration of the vibration mechanism, it can accurately intercept non-target impurities such as hair and fibers, while ensuring that the powder coating passes through smoothly. At the same time, the small vibration generated by the impact of the vibrating block on the contact block can prevent impurities from clogging the upper mesh, greatly improving the reuse value of the recovered powder and reducing the additional cost of impurity separation. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a negative pressure collection device for powder coating recycling;

[0018] Figure 2 This utility model provides a structural schematic diagram of the support frame in a negative pressure collection device for powder coating recycling;

[0019] Figure 3 This utility model provides a schematic diagram of the internal structure of the filter chamber in a negative pressure collection device for powder coating recycling;

[0020] Figure 4 This utility model provides a structural schematic diagram of the vibration mechanism in a negative pressure collection device for powder coating recycling;

[0021] Figure 5 This utility model relates to a negative pressure collection device for recovering powder coatings. Figure 4 Enlarged diagram of point A.

[0022] Legend:

[0023] 1. Support frame; 11. Fixed structure; 111. Connecting block; 112. Screw; 113. Semi-arc ring; 114. Rotating disk; 2. Filter chamber; 21. Slide groove; 22. Filter screen; 23. Sealing door; 221. Locking block; 222. Contact block; 3. Collection box; 31. Protective door; 4. Suction mechanism; 41. Arc-shaped pipe; 42. Flexible corrugated pipe; 43. Limiting ring; 44. Suction bucket; 5. Connecting pipe; 6. Negative pressure pump; 7. Vibration mechanism; 71. Mounting frame; 72. Motor; 73. Rotating rod; 74. Vibrating block. Detailed Implementation

[0024] Please see Figure 1-5 This utility model provides a technical solution: a negative pressure collection device for powder coating recycling, including a support frame 1, a filter chamber 2 and a collection box 3.

[0025] A filter chamber 2 is fixedly connected inside the support frame 1. A suction mechanism 4 is fixedly and continuously connected to the top of the filter chamber 2. A connecting pipe 5 is fixedly and continuously connected to the bottom of the filter chamber 2. A negative pressure pump 6 is fixedly connected to one end of the connecting pipe 5. The output end of the negative pressure pump 6 is continuously connected to the collection box 3. A sliding groove 21 is provided inside the filter chamber 2. A filter screen plate 22 is slidably connected inside the sliding groove 21. A vibration mechanism 7 is provided below the filter screen plate 22. The vibration mechanism 7 is fixedly installed on the outer surface of the filter chamber 2.

[0026] The following section will describe in detail the specific configuration and function of its filter chamber 2, filter screen 22, and vibration mechanism 7.

[0027] In this embodiment: the vibration mechanism 7 includes a mounting frame 71 fixedly connected to the outer surface of the filter chamber 2. A motor 72 is fixedly connected to the top of the mounting frame 71. A rotating rod 73 is fixedly connected to the output end of the motor 72. The end of the rotating rod 73 away from the motor 72 is rotatably connected to the inner wall of the filter chamber 2. A vibrating block 74 is fixedly connected to the outer surface of the rotating rod 73.

[0028] The effects achieved by the above components are as follows: the mounting bracket 71 provides a stable support foundation for the motor 72, preventing the motor 72 from shifting due to vibration during operation; the motor 72 drives the vibrating block 74 to rotate at a uniform speed through the rotating rod 73; during the rotation, the vibrating block 74 periodically impacts the contact block 222 of the filter screen plate 22, generating sufficient vibration force to shake off impurities on the filter screen, while avoiding rigid impact damage to the filter screen; the two ends of the rotating rod 73 are respectively connected to the motor 72 and the inner wall of the filter chamber 2 to ensure coaxiality during rotation and prevent the position of the vibrating block 74 from shifting, resulting in uneven vibration.

[0029] Specifically, a locking block 221 is fixedly connected to the side of the filter screen plate 22, and the locking block 221 cooperates with the slide groove 21. A contact block 222 is fixedly connected to the bottom edge of the filter screen plate 22, and the contact block 222 is located directly above the vibrating block 74.

[0030] The effects achieved by the above components are as follows: the locking block 221 and the slide groove 21 are fitted with a clearance, which ensures that the filter screen 22 can be smoothly pulled along the slide groove 21 for easy cleaning and replacement, and also limits the lateral displacement of the filter screen during vibration to ensure filtration stability. The contact block 222 can transmit the vibration force vertically to the filter screen to avoid local wear of the filter screen due to force displacement.

[0031] Specifically, the suction mechanism 4 includes an arc-shaped tube 41 that runs through the top of the filter chamber 2. A flexible corrugated tube 42 is connected to the end of the arc-shaped tube 41 away from the filter chamber 2. A limit ring 43 is fixedly connected to the outer surface of the flexible corrugated tube 42. A suction cup 44 is fixedly connected to the end of the flexible corrugated tube 42 away from the arc-shaped tube 41.

[0032] The effects achieved by the above components are as follows: the arc-shaped tube 41 adopts a 360-degree rotatable metal universal tube, which can adjust the suction direction to cover powder scattering areas at different angles; the flexible corrugated tube 42 can be bent at will and is not easily deformed, making it easy to contact with external powder coatings and facilitating flexible recycling.

[0033] Specifically, a fixing structure 11 is fixedly connected to the outer surface of the support frame 1, and the fixing structure 11 is symmetrically distributed on one side of the outer surface of the support frame 1.

[0034] The effect achieved by the above components is that the fixing structure 11 facilitates the fixing of the flexible corrugated pipe 42 when not in use, thereby improving the overall stability of the device.

[0035] Specifically, the fixing structure 11 includes a connecting block 111 fixedly connected to the outer surface of the support frame 1. The connecting block 111 is internally threaded with a screw 112. One end of the screw 112 is rotatably connected to a semi-circular ring 113, and the other end of the screw 112 is fixedly connected to a rotating disk 114.

[0036] The effects achieved by the above components are as follows: the connecting block 111 provides stable support for the screw 112; the threaded engagement between the screw 112 and the connecting block 111 can adjust the clamping distance of the semi-circular ring 113 by rotating the disk 114, and the semi-circular ring 113 can increase the friction with the fixed surface to prevent the flexible bellows 42 from moving.

[0037] Specifically, a cleaning port is fixedly connected to the outer surface of the filter chamber 2. The cleaning port is located above the filter screen plate 22, and a sealing door 23 is hinged to the outer surface of the cleaning port.

[0038] The effect achieved by the above components is that the opening size of the cleaning port is the same as that of the filter screen 22, and the filter screen 22 can be directly pulled out from the slide groove 21 after opening the sealing door 23, which is convenient for timely replacement.

[0039] Specifically, the collection box 3 has a recycling chamber inside, and a protective door 31 is hinged to the outer surface of the collection box 3.

[0040] The effects achieved by the above components are as follows: the volume of the recycling chamber of the collection box 3 is designed according to the recycling requirements, and the anti-static plastic film attached to the inner wall can prevent the powder coating from adsorbing on the box wall due to static electricity, thereby reducing the waste of raw materials.

[0041] Working principle: First, adjust the position of the suction mechanism 4 according to the area where the powder coating is scattered: determine the suction direction by the 360-degree rotation function of the arc tube 41, and then bend the flexible corrugated tube 42 to make the suction bucket 44 accurately align with the powder scattering point; when not in use, fix the position, and rotate the rotating disk 114 of the fixed structure 11 to drive the screw 112 to push the semi-arc ring 113 to clamp the flexible corrugated tube 42 to prevent the pipe from shifting during the suction process.

[0042] The negative pressure pump 6 is started, creating a negative pressure environment inside the filter chamber 2 through the connecting pipe 5. At this time, the suction bucket 44 generates suction, drawing the scattered powder coating into the flexible corrugated pipe 42, and then transporting it into the filter chamber 2 through the arc-shaped pipe 41. The powder coating entering the filter chamber 2 is first filtered by the filter screen 22, where impurities are intercepted on the surface of the filter screen 22. The powder that meets the recycling requirements passes through the filter screen 22 and enters the recycling chamber of the collection box 3 through the connecting pipe 5 with the negative pressure airflow.

[0043] During the filtration process, the vibration mechanism 7 is activated. The motor 72 is stably fixed by the mounting bracket 71, driving the rotating rod 73 to rotate at a uniform speed. The vibrating block 74 on the surface of the rotating rod 73 periodically impacts the contact block 222 at the bottom of the filter screen plate 22. The resulting vibration force is transmitted vertically to the filter screen plate 22, preventing the filter screen plate 22 from clogging and ensuring smooth powder conveying. When there is a lot of impurities on the surface of the filter screen plate 22, the device is closed and the sealing door 23 on the outer surface of the filter chamber 2 is opened. The filter screen plate 22 is pulled out through the cleaning port groove 21, and the filter screen can be cleaned or replaced directly. When the powder in the collection box 3 reaches a certain amount, the hinged protective door 31 is opened to take out the recovered powder coating.

Claims

1. A negative pressure collection device for powder coating recycling, comprising a support frame (1), a filter chamber (2), and a collection box (3), characterized in that: The support frame (1) is fixedly connected to a filter chamber (2). The top of the filter chamber (2) is fixedly connected to a suction mechanism (4). The bottom of the filter chamber (2) is fixedly connected to a connecting pipe (5). One end of the connecting pipe (5) is fixedly connected to a negative pressure pump (6). The output end of the negative pressure pump (6) is connected to the collection box (3). The filter chamber (2) is provided with a sliding groove (21). A filter screen plate (22) is slidably connected inside the sliding groove (21). A vibration mechanism (7) is provided below the filter screen plate (22). The vibration mechanism (7) is fixedly installed on the outer surface of the filter chamber (2). The vibration mechanism (7) includes a mounting bracket (71) fixedly connected to the outer surface of the filter chamber (2). A motor (72) is fixedly connected to the top of the mounting bracket (71). A rotating rod (73) is fixedly connected to the output end of the motor (72). The end of the rotating rod (73) away from the motor (72) is rotatably connected to the inner wall of the filter chamber (2). A vibrating block (74) is fixedly connected to the outer surface of the rotating rod (73).

2. The negative pressure collection device for powder coating recycling according to claim 1, characterized in that: A locking block (221) is fixedly connected to the side of the filter screen plate (22), and the locking block (221) cooperates with the slide groove (21). A contact block (222) is fixedly connected to the bottom edge of the filter screen plate (22), and the contact block (222) is located directly above the vibrating block (74).

3. The negative pressure collection device for powder coating recycling according to claim 1, characterized in that: The suction mechanism (4) includes an arc-shaped tube (41) that runs through the top of the filter chamber (2). A flexible corrugated tube (42) is connected to one end of the arc-shaped tube (41) away from the filter chamber (2). A limit ring (43) is fixedly connected to the outer surface of the flexible corrugated tube (42). A suction cup (44) is fixedly connected to one end of the flexible corrugated tube (42) away from the arc-shaped tube (41).

4. The negative pressure collection device for powder coating recycling according to claim 1, characterized in that: The outer surface of the support frame (1) is fixedly connected to a fixing structure (11), which is symmetrically distributed on one side of the outer surface of the support frame (1).

5. The negative pressure collection device for powder coating recycling according to claim 4, characterized in that: The fixed structure (11) includes a connecting block (111) fixedly connected to the outer surface of the support frame (1). The connecting block (111) is internally threaded with a screw (112). One end of the screw (112) is rotatably connected to a semi-circular ring (113), and the other end of the screw (112) is fixedly connected to a rotating disk (114).

6. The negative pressure collection device for powder coating recycling according to claim 1, characterized in that: The outer surface of the filter chamber (2) is fixedly connected to a cleaning port, which is located above the filter screen plate (22). The outer surface of the cleaning port is hinged to a sealing door (23).

7. A powder coating material recovery negative pressure collecting device according to claim 1, characterized in that: The collection box (3) has a recycling chamber inside, and a protective door (31) is hinged to the outer surface of the collection box (3).

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