Novel coating supply device

By using a dual-powder hopper design and zoned supply to the spray gun head, the problem of insufficient powder color on the surface of the object after spraying was solved, achieving uniformity of the spraying effect and low-cost modification.

CN223761233UActive Publication Date: 2026-01-06XIAMEN JIEHELI ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520060350.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-01-06
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

Existing powder coating equipment may result in insufficient powder color on the surface of the coated object after mixing recycled powder with new powder.

Method used

It adopts a dual powder hopper design, with the return powder hopper supplying the front spray gun and the new powder hopper supplying the rear spray gun. The spray gun head is connected by a soft rubber tube to realize the zoned supply of powder. The spray gun head is driven up and down by the spray gun drive mechanism to ensure uniform spraying of powder.

Benefits of technology

It achieves uniform color of powder on the surface of the object after spraying, and has a simple structure and low modification cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel coating supply device which comprises a powder chamber and powder bins, spray gun chambers and a spraying channel are arranged in the powder chamber, the spray gun chambers are arranged on the two sides of the spraying channel, spray gun heads are arranged in the spray gun chambers, the number of the spray gun heads on each side is 4-8, the spray gun heads are connected to a spray gun driving mechanism, and the powder bins comprise a new powder bin and a powder return bin. The powder return bin is connected to the front spray gun head through a powder pipe, and the new powder bin is connected to the rear spray gun head through a powder pipe. The powder recycling device has the advantages that the double-powder-bin design is adopted, the powder returning bin is used for supplying power to the front spray gun, the new powder bin is used for supplying power to the rear spray gun, powder can be recycled, and meanwhile the color of the powder on the surface of an object can be guaranteed; the structure is simple and the modification cost is low.
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Description

Technical Field

[0001] This utility model relates to a novel paint supply device, belonging to the field of spraying technology. Background Technology

[0002] A powder coating system is a closed workspace used for spraying powder coatings. The powder coating process involves the powder being converted into a highly fluid powder liquid through a specialized powder storage and conveying system, and then evenly delivered to the spray gun to form a stable powder cloud. The spray gun then uses a precise air control device to adjust the spray speed and angle, ensuring that the powder evenly covers the object to be coated. A negative charge is applied to the object, causing the positively charged powder cloud to be tightly adsorbed onto the object's surface, forming a uniform and dense coating. After high-temperature treatment in a curing oven, the powder melts and bonds with the object's surface, generating a coating with excellent anti-corrosion, anti-rust, wear-resistant, and high-temperature resistant properties.

[0003] The powder coating device is designed to recycle the powder after coating and reuse it. The current practice is to mix the recycled powder and new powder in the powder hopper before coating. Since the surface of the object is a mixture of powders, the powder on the surface of the object after coating may not be of sufficient color. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a novel paint supply device. The supply device adopts a dual powder bin design, with a return powder bin for supplying the front spray gun and a new powder bin for supplying the rear spray gun. This not only allows for the reuse of powder but also ensures the color of the powder on the surface of the object.

[0005] This utility model is achieved through the following solution: a novel paint supply device, comprising a powder chamber and a powder silo, wherein the powder chamber contains a spray gun chamber and a spraying channel, and the spray gun chambers are located on both sides of the spraying channel, with spray gun heads in the spray gun chambers, and 5-8 spray gun heads on each side, the spray gun heads being connected to a spray gun drive mechanism, and the powder silo including a new powder silo and a return powder silo, the return powder silo being connected to the front spray gun head by a powder pipe, and the new powder silo being connected to the rear spray gun head by a powder pipe.

[0006] Each side has 5 spray gun heads. The powder return chamber is connected to the first 3 spray gun heads by a powder pipe, and the new powder chamber is connected to the last 2 spray gun heads by a powder pipe.

[0007] Each side has 8 spray gun heads. The powder return chamber is connected to the first 4 spray gun heads by a powder pipe, and the new powder chamber is connected to the last 4 spray gun heads by a powder pipe.

[0008] The spray gun drive mechanism drives the spray gun head to move up and down.

[0009] The powder tube is a soft rubber tube.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. The present invention provides a novel paint supply device with a dual powder hopper design. The return powder hopper is used to supply the front spray gun, and the new powder hopper is used to supply the rear spray gun. This not only allows for the reuse of powder, but also ensures the color of the powder on the surface of the object.

[0012] 2. The present invention provides a novel paint supply device with a simple structure and low modification cost. Attached Figure Description

[0013] Figure 1 This is a top view schematic diagram of a novel paint supply device according to the present invention.

[0014] In the diagram: 100 is the powder booth, 101 is the spray gun chamber, 102 is the spraying channel, 200 is the powder hopper, 201 is the new powder hopper, 202 is the return powder hopper, 301 is the spray gun head, 302 is the spray gun drive mechanism, and 400 is the powder pipe. Detailed Implementation

[0015] The following is combined Figure 1 The present invention will be further described below, but the scope of protection of the present invention is not limited to the contents described herein.

[0016] Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the accompanying drawings are all in a very simplified form and use non-precise ratios, and are only used to facilitate and clarify the purpose of illustrating the embodiments of this utility model.

[0017] For clarity, not all features of the actual embodiments will be described. In the following description, well-known functions and structures will not be described in detail, as they would confuse the present invention with unnecessary details. It should be understood that in the development of any actual embodiment, a great deal of implementation detail must be made to achieve the developer’s specific goals, such as changing one embodiment to another according to the limitations of the system or business. In addition, it should be understood that such development work may be complex and time-consuming, but is merely routine work for those skilled in the art.

[0018] Example 1

[0019] A novel paint supply device includes a powder chamber 100 and a powder silo 200. The powder chamber 100 contains a spray gun chamber 101 and a spraying channel 102. Both sides of the spraying channel 102 are spray gun chambers 101. Spray gun heads 301 are located in the spray gun chambers 101, with five spray gun heads 301 on each side. The spray gun heads 301 are connected to a spray gun drive mechanism 302, which drives the spray gun heads 301 to move up and down. The powder silo 200 includes a new powder silo 201 and a return powder silo 202. The return powder silo 202 is connected to the first three spray gun heads 301 by a powder pipe 400, and the new powder silo 201 is connected to the last two spray gun heads 301 by a powder pipe 400.

[0020] The 400mm powder tube is a soft rubber tube.

[0021] During the powder coating process, the object to be coated is moved from left to right in the coating channel by the clamping and moving device. When it enters the spray gun area, the powder in the powder return hopper 202 is converted into a free-flowing powder liquid by the conveying system and evenly delivered to the first three spray gun heads 301 to form a stable powder cloud. Then, the spray gun uses a precise air control device to adjust the spray speed and angle for coating.

[0022] The object then continues to move to the right within the spraying channel. The powder in the new powder hopper 201 is converted into a free-flowing powder liquid through the conveying system and evenly delivered to the last two spray gun heads 301 to form a stable powder cloud. Then, the spray guns use a precise air control device to adjust the spraying speed and angle for a second spraying. Finally, a negative charge is applied to the object, causing the positively charged powder cloud to be tightly adsorbed onto the object's surface, forming a uniform and dense coating. This ensures that the surface of the object is covered with fresh powder, guaranteeing the quality of the powder.

[0023] Example 2

[0024] Based on Example 1, the number of spray gun heads 301 is changed according to the spraying needs. At the same time, the ratio of connecting the new powder hopper 201 and the return powder hopper 202 is allocated as needed. Specifically, there are 8 spray gun heads 301 on each side. The return powder hopper 202 is connected to the first 4 spray gun heads 301 by the powder pipe 400, and the new powder hopper 201 is connected to the last 4 spray gun heads 301 by the powder pipe 400.

[0025] Although the technical solutions of this utility model have been described and enumerated in detail, it should be understood that modifications to the above embodiments or the adoption of equivalent alternatives are obvious to those skilled in the art. Such modifications or improvements made without departing from the spirit of this utility model are all within the scope of protection claimed by this utility model.

Claims

1. A novel paint supply device, comprising a powder room (100) and a powder bin (200), the powder room (100) has a spray gun chamber (101) and a spraying channel (102), both sides of the spraying channel (102) are the spray gun chamber (101), the spray gun heads (301) are in the spray gun chamber (101), the spray gun heads (301) on each side are 5-8, the spray gun heads (301) are connected to a spray gun driving mechanism (302), characterized in that, The powder bin (200) includes a new powder bin (201) and a return powder bin (202), the return powder bin (202) is connected to the front of the spray gun head (301) by a powder pipe (400), and the new powder bin (201) is connected to the rear of the spray gun head (301) by a powder pipe (400).

2. A novel paint supply device according to claim 1, characterized in that, The spray gun head (301) on each side is 5, the return powder bin (202) is connected to the front 3 spray gun heads (301) by a powder pipe (400), and the new powder bin (201) is connected to the rear 2 spray gun heads (301) by a powder pipe (400).

3. A novel paint supply device according to claim 1, characterized in that, The spray gun head (301) on each side is 8, the return powder bin (202) is connected to the front 4 spray gun heads (301) by a powder pipe (400), and the new powder bin (201) is connected to the rear 4 spray gun heads (301) by a powder pipe (400).

4. The novel paint supply device according to claim 1, characterized by The spray gun driving mechanism (302) drives the spray gun head (301) to move up and down.

5. The novel paint supply device according to claim 1, characterized by The powder pipe (400) is a soft rubber pipe.