Electrostatic spray apparatus for low temperature curing powder coatings

Abstract

This utility model relates to the field of low-temperature curing powder coating technology and discloses an electrostatic spraying device for low-temperature curing powder coatings, including an electrostatic powder spraying machine. The electrostatic powder spraying machine has upright plates on both sides of its surface, and threaded holes are formed on the surface of each upright plate. A clamping mechanism is threaded into the internal of each threaded hole. In this electrostatic spraying device for low-temperature curing powder coatings, the clamping mechanism allows the storage tank to be placed on the surface of the electrostatic powder spraying machine during use. Then, the threaded rods on the upright plates on both sides of the machine are rotated. These threaded rods rotate on their end shafts and move simultaneously on the surface of the upright plates. Driven by the shafts, the two clamping plates on one side of the shafts move relative to each other, thus firmly clamping and fixing the storage tank in the middle. This ensures that the storage tank remains stable during use and prevents it from shaking, shifting, or even tipping over due to external forces.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature curing powder coating technology, and in particular to an electrostatic spraying device for low-temperature curing powder coatings. Background Technology

[0002] Electrostatic powder coating, as a highly efficient and environmentally friendly surface coating technology, occupies an important position in modern industrial production. This technology utilizes a high-voltage electrostatic field to charge powder coating particles. Under the influence of the electric field, the powder coating is adsorbed onto the grounded workpiece surface, and after heating and curing, forms a uniform and robust coating. Due to its significant advantages such as high coating quality, high production efficiency, low environmental pollution, and high material utilization, it is widely used in numerous fields. In the home appliance manufacturing industry, the outer shells of refrigerators, air conditioners, and washing machines are coated with electrostatic powder to obtain aesthetically pleasing and durable protective coatings. In the automotive industry, the coating of parts and car bodies uses this technology to improve appearance quality and corrosion resistance. In the construction industry, metal components such as doors, windows, and curtain walls are treated with electrostatic powder coating, which not only enhances weather resistance but also enriches color options.

[0003] Electrostatic powder coating machines, as the core equipment for realizing the electrostatic powder coating process, typically consist of a spray gun, a powder supply system, an electrostatic generator, and a control system. In actual production, to meet different coating needs and improve production efficiency, storage tanks are often placed on the surface of the coating machine to store and supply powder coatings. These storage tanks vary in capacity, shape, and material to accommodate different types and quantities of powder coatings. However, existing electrostatic powder coating machines lack effective clamping and fixing structures for the storage tanks placed on their surface. During machine operation, due to the machine's own vibration and other disturbances in the workshop environment, the storage tanks are prone to shaking, displacement, or even tipping over. This not only affects the stable supply of powder coatings, leading to interruptions or uneven coating processes and reduced product quality, but may also cause powder coating leakage and waste, increasing production costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide an electrostatic spraying device for low-temperature curing powder coatings, which solves the problem mentioned in the background art that existing electrostatic powder spraying machines lack an effective clamping and fixing structure for the storage tank placed on their surface during use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an electrostatic spraying device for low-temperature curing powder coatings, comprising an electrostatic powder spraying machine, wherein upright plates are provided on both sides of the surface of the electrostatic powder spraying machine, threaded holes are provided on the surface of the upright plates, and a clamping mechanism is threadedly connected inside the threaded holes; a placement chamber is installed on the upper surface of the electrostatic powder spraying machine, and an electrostatic spraying gun is placed inside the placement chamber; an adjustment mechanism is installed at the bottom of the electrostatic spraying gun; the clamping mechanism includes a threaded rod threadedly connected inside the threaded hole, and a rotating shaft is rotatably connected to the output end of the threaded rod; a clamping plate is fixedly connected to one side of the rotating shaft; the adjustment mechanism includes a threaded tube installed at the bottom of the electrostatic spraying gun, an adjustment cover is threadedly connected to the surface of the threaded tube, and a spray head is installed at the bottom of the threaded tube.

[0008] As a further embodiment of this utility model, a flexible hose is connected through one side of the electrostatic spray gun, and a storage tank is connected through the end of the flexible hose. The storage tank serves to store raw materials.

[0009] As a further embodiment of this utility model, the storage bucket is attached to the surface of the electrostatic powder coating machine, and the storage bucket is placed in the middle of two clamping plates. The clamping plates are used to clamp and fix the storage bucket.

[0010] As a further embodiment of this utility model, the top of the storage hopper is provided with a feeding port, and a sealing plug is inserted into the inside of the feeding port, which serves to seal the container.

[0011] As a further embodiment of this utility model, two handles are fixedly connected to the upper surface of the storage bin, and the surface of the handles is fitted with anti-slip sleeves, which serve to prevent slipping.

[0012] As a further embodiment of this utility model, a motor housing is fixedly connected to the top of the storage hopper, and a stirring mechanism is installed inside the motor housing. The stirring mechanism helps to prevent the raw materials from clumping.

[0013] As a further embodiment of this utility model, the stirring mechanism includes a drive motor installed inside the motor housing, and a stirring rod is fixedly connected to the end of the drive motor. Scrapers are installed on both sides of the stirring rod. The drive motor drives the stirring rod to rotate.

[0014] (III) Beneficial Effects

[0015] This utility model provides an electrostatic spraying device for low-temperature curing powder coatings, which has the following beneficial effects:

[0016] 1. This electrostatic spraying equipment for low-temperature curing powder coating, through the setting of the clamping mechanism, allows the storage bucket to be placed on the surface of the electrostatic powder spraying machine during use. Then, the threaded rods on the two vertical plates on both sides of the electrostatic powder spraying machine are rotated. The threaded rods rotate on the end shaft and move on the surface of the vertical plate. The drive of the shaft causes the two clamping plates on one side of the shaft to move relative to each other, thereby firmly clamping and fixing the storage bucket in the middle, ensuring that it remains stable during use and preventing the storage bucket from shaking, displacing, or even tipping over due to external forces.

[0017] 2. This electrostatic spraying equipment for low-temperature curing powder coatings, through the setting of the adjustment mechanism, allows the adjustment cover on the upper surface of the threaded tube at the top of the spray head to be rotated according to the spraying range of the spray head. After the adjustment cover moves to a suitable position on the surface of the threaded tube, it can block the powder coating generated by the spray head, thereby achieving the effect of adjusting the spraying range of the spray head. The operator can adjust it according to actual needs, improving the convenience and flexibility of the equipment during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the stirring mechanism of this utility model.

[0022] In the diagram: 1. Electrostatic powder coating machine; 2. Vertical plate; 3. Clamping mechanism; 301. Threaded rod; 302. Rotating shaft; 303. Clamping plate; 4. Placement bin; 5. Electrostatic spray gun; 6. Adjustment mechanism; 601. Threaded pipe; 602. Adjustment cover; 603. Spray head; 7. Hose; 8. Storage bin; 9. Feed port; 10. Handle; 11. Motor box; 12. Mixing mechanism; 1201. Drive motor; 1202. Mixing rod; 1203. Scraper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: an electrostatic spraying device for low-temperature curing powder coating, including an electrostatic powder spraying machine 1. Vertical plates 2 are provided on both sides of the surface of the electrostatic powder spraying machine 1. Threaded holes are opened on the surface of the vertical plates 2, and a clamping mechanism 3 is threadedly connected inside the threaded holes. The clamping mechanism 3 prevents the storage tank 8 from shaking, shifting, or even tipping over due to external forces. A placement chamber 4 is installed on the upper surface of the electrostatic powder spraying machine 1, and an electrostatic spraying gun 5 is placed inside the placement chamber 4. An adjustment mechanism 6 is installed at the bottom of the electrostatic spraying gun 5. The adjustment mechanism 6 is used to adjust the spraying range of the spray head 603. Operators can adjust the spraying range according to actual needs, improving the convenience and flexibility of the equipment during use.

[0025] The clamping mechanism 3 includes a threaded rod 301 threadedly connected to the inside of a threaded hole, a rotating shaft 302 rotatably connected to the output end of the threaded rod 301, and a clamping plate 303 fixedly connected to one side of the rotating shaft 302.

[0026] The adjustment mechanism 6 includes a threaded tube 601 installed at the bottom of the electrostatic spray gun 5, an adjustment cover 602 is threadedly connected to the surface of the threaded tube 601, and a spray head 603 is installed at the bottom of the threaded tube 601.

[0027] A flexible hose 7 is connected through one side of the electrostatic spray gun 5, and a storage tank 8 is connected through the end of the flexible hose 7. The storage tank 8 serves to store the raw materials.

[0028] The storage bucket 8 is attached to the surface of the electrostatic powder coating machine 1. The storage bucket 8 is placed in the middle of the two clamping plates 303. The clamping plates 303 are used to clamp and fix the storage bucket 8.

[0029] The top of the storage hopper 8 is provided with a feeding port 9, and a sealing plug is inserted inside the feeding port 9. The sealing plug serves to seal the material.

[0030] Two handles 10 are fixedly connected to the upper surface of the storage bin 8. The surface of the handles 10 is fitted with anti-slip sleeves, which serve to prevent slipping.

[0031] A motor housing 11 is fixedly connected to the top of the storage tank 8. A stirring mechanism 12 is installed inside the motor housing 11. The stirring mechanism 12 helps to prevent the raw materials from clumping.

[0032] The stirring mechanism 12 includes a drive motor 1201 installed inside the motor housing 11. A stirring rod 1202 is fixedly connected to the end of the drive motor 1201. Scrapers 1203 are installed on both sides of the stirring rod 1202. The drive motor 1201 drives the stirring rod 1202 to rotate.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: When using the machine, place the storage bucket 8 on the surface of the electrostatic powder coating machine 1, and then rotate the threaded rod 301 on the two vertical plates 2 on both sides of the electrostatic powder coating machine 1. The threaded rod 301 rotates on the end shaft 302 and moves on the surface of the vertical plate 2. By driving the shaft 302, the two clamping plates 303 on one side of the shaft 302 move relative to each other, thereby firmly clamping and fixing the storage bucket 8 in the middle, ensuring that it is always in a stable state during use.

[0035] The second step: When using the spray head 603, depending on the spraying range of the spray head 603, the adjusting cover 602 on the upper surface of the threaded tube 601 at the top of the spray head 603 can be rotated so that the adjusting cover 602 moves to a suitable position on the surface of the threaded tube 601, thereby blocking the powder coating produced by the spray head 603.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] 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. An electrostatic spraying device for low-temperature curing powder coatings, comprising an electrostatic powder spraying machine (1), characterized in that: The electrostatic powder coating machine (1) has upright plates (2) on both sides of its surface. The upright plates (2) have threaded holes on their surfaces. The threaded holes are connected to a clamping mechanism (3). The upper surface of the electrostatic powder coating machine (1) is equipped with a placement chamber (4). An electrostatic spray gun (5) is placed inside the placement chamber (4). An adjustment mechanism (6) is installed at the bottom of the electrostatic spray gun (5). The clamping mechanism (3) includes a threaded rod (301) threaded into the threaded hole, and a rotating shaft (302) is rotatably connected to the output end of the threaded rod (301). A clamping plate (303) is fixedly connected to one side of the rotating shaft (302). The adjustment mechanism (6) includes a threaded tube (601) installed at the bottom of the electrostatic spray gun (5), an adjustment cover (602) is threadedly connected to the surface of the threaded tube (601), and a spray head (603) is installed at the bottom of the threaded tube (601).

2. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 1, characterized in that: A flexible hose (7) is connected through one side of the electrostatic spray gun (5), and a storage tank (8) is connected through the end of the flexible hose (7).

3. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 2, characterized in that: The storage bin (8) is attached to the surface of the electrostatic powder coating machine (1), and the storage bin (8) is placed in the middle of the two clamping plates (303).

4. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 2, characterized in that: The top of the storage tank (8) is provided with a feeding port (9), and a sealing plug is inserted inside the feeding port (9).

5. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 2, characterized in that: Two handles (10) are fixedly connected to the upper surface of the storage bucket (8), and the surface of the handles (10) is covered with anti-slip sleeves.

6. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 2, characterized in that: The top of the storage tank (8) is fixedly connected to a motor box (11), and a stirring mechanism (12) is installed inside the motor box (11).

7. The electrostatic spraying equipment for low-temperature curing powder coatings according to claim 6, characterized in that: The stirring mechanism (12) includes a drive motor (1201) installed inside the motor housing (11). The end of the drive motor (1201) is fixedly connected to a stirring rod (1202), and scrapers (1203) are installed on both sides of the stirring rod (1202).

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