Electrostatic plastic spraying device with adjustable spraying area

By introducing a moving powder coating mechanism and a rotating mechanism into the electrostatic powder coating device, the problems of powder coating area adjustment and stable reciprocating spraying are solved, realizing flexible adjustment of the spraying area and improving powder coating efficiency.

CN224167732UActive Publication Date: 2026-04-28JIANGSU HENGLI HEAT EXCHANGE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HENGLI HEAT EXCHANGE TECH CO LTD
Filing Date
2025-06-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing electrostatic powder coating equipment cannot reciprocate stably during the powder coating process, and cannot quickly adjust the appropriate coating area according to the size of the powder-coated part.

Method used

An electrostatic powder coating device with adjustable coating area, including a moving powder coating mechanism and a rotating mechanism, was designed. The powder coating area is adjusted by a trapezoidal screw and roller assembly, and the powder-coated part is rotated by a gear and hook assembly.

Benefits of technology

It enables flexible adjustment of the spraying area and a stable reciprocating spraying process, improving the efficiency and effect of powder coating.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electrostatic spraying devices, and discloses a spraying area adjustable electrostatic spraying device which comprises a partition frame, a box door is rotatably connected to the front face of the partition frame, a rotating mechanism is arranged at the top of the partition frame, a fixed frame is fixedly connected to the left side of the partition frame, and a movable spraying mechanism is arranged on the inner wall of the left side of the partition frame. Through the arranged movable plastic spraying mechanism, before plastic spraying, according to the size of a plastic spraying part, a second trapezoidal screw rod is rotated through a tool, the second trapezoidal screw rod synchronously drives a movable block to move downwards, the movable block synchronously drives a rolling wheel to move in the moving process, and then the rolling wheel synchronously drives a movable frame to move downwards when moving; and therefore, the moving position of the moving block on the rotating disc is adjusted, the device can adjust the appropriate reciprocating plastic spraying area according to the size of a plastic spraying part, and in the subsequent spraying process, the plastic spraying device can smoothly conduct the stable reciprocating spraying process.
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Description

Technical Field

[0001] This utility model relates to the technical field of electrostatic powder coating equipment, specifically an electrostatic powder coating equipment with adjustable spraying area. Background Technology

[0002] An electrostatic powder coating machine is an industrial piece of equipment that uses electrostatic control, a spray gun, and a powder supply device to coat the surface of an object. It can spray powdered coatings containing materials such as epoxy resin and polyester resin (plastic) onto the object. The coated object then enters a curing oven to cure, resulting in a complete coating that provides decorative, anti-corrosion, and other functions.

[0003] According to the description in the electrostatic powder coating device disclosed on the patent website (authorization announcement CN 221797091 U), "An electrostatic powder coating device includes a base, on both sides of the base are an organic powder coating device disposed on the inner surface of the organic body, a powder collection device disposed inside the base; a cleaning assembly is installed on the inner surface of the base near the lower part of the powder coating device, the cleaning assembly includes a slide rail symmetrically installed on the inner surface of the base, a slider slidably connected to the slide rail, and a bearing seat."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In the operation of this utility model, when the powder coating machine is working, the powder coating is sent into the powder coating device by the powder supply system using compressed air. The powder is sent to the spray guns on both sides, and a high voltage is generated at the front end of the gun by a high voltage electrostatic generator. Due to corona discharge, a dense charge is generated in the vicinity. The powder is sprayed out from the nozzle and sprayed onto the workpiece inside the machine body. When a certain thickness is reached, the workpiece no longer absorbs powder. However, in actual use, during the powder coating process, it is necessary to repeatedly spray the part back and forth. Therefore, this device only drives the screw through a motor to move the powder coating device up and down. In the reciprocating process, the motor needs to be frequently reversed to achieve the reciprocating work. As a result, it is not possible to smoothly and stably perform the reciprocating process of the powder coating device in actual use, and it is not possible to quickly adjust the appropriate powder coating area according to the size of the part. Therefore, it is necessary to improve the electrostatic powder coating device with adjustable spray area. Utility Model Content

[0006] The purpose of this invention is to provide an electrostatic powder coating device with adjustable spraying area to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electrostatic powder coating device with adjustable spraying area, comprising a partition frame, a box door rotatably connected to the front of the partition frame, a rotating mechanism provided at the top of the partition frame, a fixed frame fixedly connected to the left side of the partition frame, a movable powder coating mechanism provided on the inner wall of the left side of the partition frame, a discharge hood fixedly connected to the inner walls of the left and right sides of the partition frame, and a waste frame slidably connected inside the discharge hood;

[0008] The mobile powder coating mechanism includes a mobile component and a powder coating component, wherein the powder coating component is located on the right side of the mobile component;

[0009] The moving component includes a motor, which is fixedly connected to the top of the partition frame. A trapezoidal screw is fixedly connected to the output end of the motor. A moving platform is threaded onto the external side of the trapezoidal screw. An accordion baffle is fixedly connected between the moving platform and the partition frame. A guide frame is fixedly connected to the left side of the partition frame. A motor is fixedly connected to the left side of the moving platform. A rotating disk is fixedly connected to the output end of the motor. A trapezoidal screw is rotatably connected inside the rotating disk. A moving block is threaded onto the external side of the trapezoidal screw. A roller is rotatably connected to the external side of the moving block. A moving frame is movably connected to the external side of the roller. A slide rail is fixedly connected to the right side of the moving platform to facilitate adjustment of the appropriate powder coating position according to the position of the powder-coated part.

[0010] Preferably, a groove is provided at the position corresponding to the rotating disk and the moving block, and the moving block is slidably connected in the groove, so as to synchronously drive the spray gun to move up and down.

[0011] Preferably, the moving frame is provided with a groove at the position corresponding to the slide rail, and the moving frame is slidably connected to the outside of the slide rail, and the moving table is slidably connected to the outside of the guide frame, so as to facilitate the adjustment of the appropriate reciprocating powder coating area according to the size of the powder coated part.

[0012] Preferably, the powder coating assembly includes a powder barrel, which is fixedly connected to the back of the partition frame. A powder supply pump is fixedly connected to the top of the powder barrel, and a connecting hose is fixedly connected to the top of the powder supply pump. A powder pipe is fixedly connected to the end of the connecting hose away from the powder supply pump. A connecting plate is fixedly connected to the left side of the powder pipe, and a spray gun is fixedly connected to the right side of the powder pipe. A high-voltage electrostatic generator is fixedly connected to the outside of the output end of the spray gun to facilitate rapid powder coating.

[0013] Preferably, the connecting plate is fixedly connected to the right side of the movable frame, and the connecting hose is fixedly connected inside the partition frame to facilitate the delivery of sprayed material.

[0014] Preferably, the rotating mechanism includes a third motor, which is fixedly connected to the top of the partition frame. A gear is fixedly connected to the output end of the third motor. A protective frame is fixedly connected to the inner side of the top of the partition frame. A gear is rotatably connected inside the protective frame. A hook is fixedly connected to the bottom of the gear, which facilitates the rotation of the powder-coated part and thus improves the powder coating effect.

[0015] Preferably, gear one meshes with gear two, and gear one is rotatably connected inside the protective frame to facilitate synchronous rotation of the hook.

[0016] Compared with the prior art, this utility model provides an electrostatic powder coating device with adjustable spraying area, which has the following beneficial effects:

[0017] 1. This electrostatic powder coating device with adjustable spraying area, through the set movable powder coating mechanism, before powder coating, according to the size of the part to be powder coated, rotates the trapezoidal screw two with the help of a tool. The trapezoidal screw two synchronously drives the movable block to move downward. During the movement of the movable block, the roller moves synchronously. In turn, the roller moves synchronously and drives the movable frame to move downward, thereby adjusting the moving position of the movable block on the rotating disk. Thus, the device can adjust the appropriate reciprocating powder coating area according to the size of the part to be powder coated, so that the powder coating device can smoothly and stably carry out the reciprocating powder coating process in subsequent powder coating.

[0018] 2. This electrostatic powder coating device with adjustable spraying area uses a rotating mechanism. By starting motor three, motor three drives gear one to rotate, which in turn drives gear two to rotate. Gear two then drives the hook to rotate, which in turn drives the powder-coated part to rotate synchronously, thereby adjusting the powder coating position of the part. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the external structure of the mobile powder coating mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the external structure of the mobile component of this utility model;

[0024] Figure 5 This is a schematic diagram of the external structure of the components connected to the rotating disk of this utility model;

[0025] Figure 6 This is a schematic diagram of the appearance and structure of the powder coating component of this utility model;

[0026] Figure 7 This is a schematic diagram of the external structure of the rotating mechanism of this utility model.

[0027] In the diagram: 1. Partition frame; 2. Box door; 3. Rotating mechanism; 4. Moving powder coating mechanism; 5. Fixed frame; 6. Discharge cover; 7. Waste box; 41. Moving component; 42. Powder coating component; 411. Motor 1; 412. Trapezoidal screw 1; 413. Guide frame; 414. Moving platform; 415. Bellows baffle; 416. Motor 2; 417. Rotary disc; 418. Trapezoidal screw 2; 419. Roller; 4110. Moving block; 4111. Moving frame; 4112. Slide rail; 421. Powder bucket; 422. Powder supply pump; 423. Connecting hose; 424. Powder pipe; 425. Connecting plate; 426. Spray gun; 427. High voltage electrostatic generator; 31. Motor 3; 32. Gear 1; 33. Gear 2; 34. Hook; 35. Protective frame. Detailed Implementation

[0028] 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.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Example 1:

[0031] Based on current technology, the powder coating process requires repeated back-and-forth powder coating of the parts. This device relies solely on a motor-driven screw to move the powder coating unit up and down. Frequent forward and reverse rotation of the motor is necessary to achieve this reciprocating motion. Consequently, in practical use, the powder coating unit cannot smoothly and stably perform the reciprocating process, and it cannot quickly adjust the powder coating area according to the size of the parts. Please refer to [link / reference]. Figure 1-7 This utility model provides a technical solution: an electrostatic powder coating device with adjustable spraying area, including a partition frame 1, a box door 2 rotatably connected to the front of the partition frame 1, a rotating mechanism 3 provided at the top of the partition frame 1, a fixed frame 5 fixedly connected to the left side of the partition frame 1, a movable powder coating mechanism 4 provided on the inner wall of the left side of the partition frame 1, a discharge cover 6 fixedly connected to the inner walls of the left and right sides of the partition frame 1, and a waste frame 7 slidably connected inside the discharge cover 6.

[0032] The mobile powder coating mechanism 4 includes a mobile component 41 and a powder coating component 42, with the powder coating component 42 located on the right side of the mobile component 41;

[0033] The moving component 41 includes a motor 411, which is fixedly connected to the top of the partition 1. A trapezoidal screw 412 is fixedly connected to the output end of the motor 411. A moving platform 414 is externally threaded to the trapezoidal screw 412. A bellows baffle 415 is fixedly connected between the moving platform 414 and the partition 1. A guide frame 413 is fixedly connected to the left side of the partition 1. A motor 416 is fixedly connected to the left side of the moving platform 414. A rotating disk 417 is fixedly connected to the output end of the motor 416. A trapezoidal screw 418 is rotatably connected inside the rotating disk 417. A moving block 4110 is externally threaded to the trapezoidal screw 418. A roller 419 is rotatably connected to the moving block 4110. A moving frame 4111 is movably connected to the roller 419. A slide rail 4112 is fixedly connected to the right side of the moving platform 414 to facilitate adjusting the appropriate powder coating position according to the position of the powder-coated part.

[0034] Furthermore, a groove is provided at the corresponding position of the rotating disk 417 and the moving block 4110, and the moving block 4110 is slidably connected in the groove, so as to synchronously drive the spray gun 426 to move up and down.

[0035] Furthermore, the moving frame 4111 is provided with a slot at the corresponding position of the slide rail 4112, and the moving frame 4111 is slidably connected to the outside of the slide rail 4112, and the moving table 414 is slidably connected to the outside of the guide frame 413, so as to facilitate the adjustment of the appropriate reciprocating powder coating area according to the size of the powder coated part.

[0036] Furthermore, the powder coating assembly 42 includes a powder tank 421, which is fixedly connected to the back of the partition frame 1. A powder supply pump 422 is fixedly connected to the top of the powder tank 421. A connecting hose 423 is fixedly connected to the top of the powder supply pump 422. A powder pipe 424 is fixedly connected to the end of the connecting hose 423 away from the powder supply pump 422. A connecting plate 425 is fixedly connected to the left side of the powder pipe 424. A spray gun 426 is fixedly connected to the right side of the powder pipe 424. A high-voltage electrostatic generator 427 is fixedly connected to the external output end of the spray gun 426 to facilitate rapid powder coating.

[0037] Furthermore, the connecting plate 425 is fixedly connected to the right side of the movable frame 4111, and the connecting hose 423 is fixedly connected inside the partition frame 1 to facilitate the delivery of sprayed material.

[0038] Example 2:

[0039] Based on the existing technology that requires adjusting the position of the powder coating booth, please refer to... Figure 7 Furthermore, in conjunction with Embodiment 1, the rotating mechanism 3 includes a motor 31, which is fixedly connected to the top of the partition 1. A gear 32 is fixedly connected to the output end of the motor 31. A protective frame 35 is fixedly connected to the inner side of the top of the partition 1. A gear 33 is rotatably connected inside the protective frame 35. A hook 34 is fixedly connected to the bottom of the gear 33 to facilitate the rotation of the powder-coated part, thereby improving the powder coating effect.

[0040] Furthermore, gear 32 meshes with gear 33, and gear 32 is rotatably connected inside the protective frame 35, which facilitates the synchronous rotation of hook 34.

[0041] In actual operation, when the device is in use, the control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here.

[0042] First, when using the device, the object to be powder-coated is first hung on the hook 34 using a wire. Then, using the movable powder-coating mechanism 4, before powder coating, according to the size of the object, the trapezoidal screw 418 is rotated using a tool. The trapezoidal screw 418 synchronously drives the moving block 4110 downwards, causing the roller 419 to move synchronously during its movement. This, in turn, causes the moving frame 4111 to move downwards synchronously when the roller 419 moves, thereby adjusting the position of the moving block 4110. The movement of the 10 on the rotating disk 417 allows the device to adjust the appropriate reciprocating spraying area according to the size of the sprayed part. Then, by starting motor 411, the first motor drives the trapezoidal screw 412 to rotate, synchronously moving the guide frame 413 downwards, thus positioning the spray gun 426 at the top of the sprayed part. Subsequently, by starting motor 416, the second motor drives the rotating disk 417 to rotate, causing the rotating disk 417 to move downwards during its rotation. The roller 419 moves synchronously, which in turn moves the moving frame 4111. During the movement of the moving frame 4111, the spray gun 426 moves synchronously. As the motor 416 rotates continuously, it drives the spray gun 426 to move up and down repeatedly. Simultaneously, the powder supply pump 422 is activated, drawing the powder from the powder container 421 and delivering it to the spray gun 426 via the connecting hose 423. The powder is then delivered to the spray guns on both sides of the spray gun 426. A high-voltage electrostatic generator 427 generates high voltage at the front end of the spray gun. Due to corona discharge, a dense charge is generated in its vicinity. The powder is sprayed onto the powder-coated part through the nozzle, completing the powder coating process. During the powder coating process, the rotating mechanism 3 activates the motor 31, which drives the gear 32 to rotate. The gear 32 then drives the gear 33 to rotate, which in turn drives the hook 34 to rotate. The hook 34 synchronously rotates the powder-coated part.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electrostatic powder coating device with adjustable spraying area, comprising a partition frame (1), characterized in that: The partition (1) is rotatably connected to a box door (2) on the front. The partition (1) is provided with a rotating mechanism (3) at the top. The partition (1) is fixedly connected to a fixed frame (5) on the left side. The partition (1) is provided with a movable powder coating mechanism (4) on the left inner wall. The partition (1) is fixedly connected to a discharge cover (6) on the left and right inner walls. The discharge cover (6) is slidably connected to a waste frame (7) inside. The mobile powder coating mechanism (4) includes a mobile component (41) and a powder coating component (42), wherein the powder coating component (42) is disposed on the right side of the mobile component (41); The moving component (41) includes a motor (411), which is fixedly connected to the top of the partition (1). A trapezoidal screw (412) is fixedly connected to the output end of the motor (411). A moving platform (414) is externally threaded onto the trapezoidal screw (412). A bellows baffle (415) is fixedly connected between the moving platform (414) and the partition (1). A guide frame (413) is fixedly connected to the left side of the partition (1). A guide frame (413) is fixedly connected to the left side of the moving platform (414). There is a second motor (416), and a rotating disk (417) is fixedly connected to the output end of the second motor (416). A trapezoidal screw (418) is rotatably connected inside the rotating disk (417). A moving block (4110) is threadedly connected to the outside of the trapezoidal screw (418). A roller (419) is rotatably connected to the outside of the moving block (4110). A moving frame (4111) is movably connected to the outside of the roller (419). A slide rail (4112) is fixedly connected to the right side of the moving platform (414).

2. The electrostatic powder coating device with adjustable spraying area according to claim 1, characterized in that: The rotating disk (417) has a groove at the corresponding position of the moving block (4110), and the moving block (4110) is slidably connected in the groove.

3. The electrostatic powder coating device with adjustable spraying area according to claim 1, characterized in that: The movable frame (4111) has a slot at the corresponding position of the slide rail (4112), and the movable frame (4111) is slidably connected to the outside of the slide rail (4112), and the movable stage (414) is slidably connected to the outside of the guide frame (413).

4. The electrostatic powder coating device with adjustable spraying area according to claim 1, characterized in that: The powder coating assembly (42) includes a powder tank (421), which is fixedly connected to the back of the partition frame (1). A powder supply pump (422) is fixedly connected to the top of the powder tank (421), and a connecting hose (423) is fixedly connected to the top of the powder supply pump (422). A powder pipe (424) is fixedly connected to the end of the connecting hose (423) away from the powder supply pump (422). A connecting plate (425) is fixedly connected to the left side of the powder pipe (424), and a spray gun (426) is fixedly connected to the right side of the powder pipe (424). A high-voltage electrostatic generator (427) is fixedly connected to the external output end of the spray gun (426).

5. The electrostatic powder coating device with adjustable spraying area according to claim 4, characterized in that: The connecting plate (425) is fixedly connected to the right side of the movable frame (4111), and the connecting hose (423) is fixedly connected inside the partition frame (1).

6. The electrostatic powder coating device with adjustable spraying area according to claim 1, characterized in that: The rotating mechanism (3) includes a motor three (31), which is fixedly connected to the top of the partition frame (1). A gear one (32) is fixedly connected to the output end of the motor three (31). A protective frame (35) is fixedly connected to the inner side of the top of the partition frame (1). A gear two (33) is rotatably connected inside the protective frame (35). A hook (34) is fixedly connected to the bottom of the gear two (33).

7. The electrostatic powder coating device with adjustable spraying area according to claim 6, characterized in that: The first gear (32) meshes with the second gear (33), and the first gear (32) is rotatably connected inside the protective frame (35).

Citation Information

Patent Citations

  • Stirring type sewage treatment device

    CN221797091U