Vacuum adsorption type electrostatic spraying device for door and window coating process
By using a vacuum adsorption electrostatic spraying device that combines a negative pressure pump and an electrostatic generator, the problem of large particle impurities not being screened in traditional electrostatic spraying is solved, and a smooth coating surface is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN LUOZUN METAL DOORS & WINDOW CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional electrostatic spraying processes fail to effectively screen out large particles of impurities, resulting in an uneven coating surface.
A vacuum adsorption electrostatic spraying device is adopted, which combines a negative pressure pump and an electrostatic generator. Through the flow guide support frame and impurity removal ring, the material is uniformly mixed and large particles are blocked, thus ensuring the coating quality.
It improves the coating quality, making the surface smoother and more even.
Smart Images

Figure CN224253126U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of coating and spraying technology, specifically a vacuum adsorption electrostatic spraying device for door and window coating process. Background Technology
[0002] The principle of electrostatic adsorption is based on the action of electrostatic force. When an object is charged, it will generate an electric field around it. This electric field can affect neutral objects or other objects with opposite charges. When there is a charge difference between two substances, they will attract or repel each other.
[0003] Electrostatic adsorption typically uses electrostatic force to attract charged substances to the surface of another object. These movable objects are usually lightweight and easily charged. It is mainly used for thin layers of liquids, dust, etc., and is commonly used in air purification equipment, dust filtration, and spraying processes. Electrostatic adsorption usually requires applying a force to these targets, causing them to move due to airflow and the inertia of adsorption. Incomplete dissolution or undissolved materials formed by stirring can be carried into the equipment, resulting in unevenness in the coating process.
[0004] However, traditional electrostatic spraying does not involve mixing or sieving large particles of impurities, which is not conducive to a smooth coating surface. Utility Model Content
[0005] The purpose of this application is to provide a vacuum adsorption electrostatic spraying device for door and window coating processes, in order to solve the problem that the traditional electrostatic spraying process does not mix and screen large particulate impurities, which is not conducive to the surface smoothness of the coating.
[0006] The technical solution adopted in this application is as follows: a vacuum adsorption electrostatic spraying device for door and window coating process, including a negative pressure pump, a storage chamber fixedly connected to the outer surface of the negative pressure pump, a flow guide support frame fixedly connected to the middle outer surface of the storage chamber, a protective shell fixedly connected to the outer surface of the storage chamber corresponding to the periphery of the flow guide support frame, an inner fixed tube fixedly connected to the outer surface of the protective shell corresponding to the outer surface of the flow guide support frame, an inner support frame fixedly connected to the inner surface of the inner fixed tube, an arc-shaped flow guide shell fixedly connected to the outer surface of the other end of the inner support frame, a flow guide protrusion fixedly connected to the outer surface of the arc-shaped flow guide shell near the inner support frame, and a dirt removal ring detachably connected to the outer surface of the arc-shaped flow guide shell away from the flow guide protrusion.
[0007] By adopting the above technical solution, the device consists of a built-in negative pressure pump with two output ends. One end is connected to the storage tank, which facilitates the adsorption of materials stored in the mixing tank and guides them into the storage tank through a connecting pipe. The other end is connected to a fixed block extending from the front end to the detachable pipe to generate a vacuum for spraying. After being stored in the storage tank, the material is sprayed out through the inward-contracting sleeve in the middle of the guide support frame by the adsorption force of the fixed block at the front end. The electrostatic generator built into the arc-shaped guide shell generates static electricity, which can adsorb onto the surface of the arc-shaped guide shell when the material is sprayed out. The fan blades of the guide support frame agitate the material to ensure uniformity. The inner support frame and the guide protrusions provide guidance, allowing the material to be fully mixed during its movement. The impurity removal ring provides a buffer at the very end, and large particles are blocked at the impurity removal ring due to the strong electrostatic adsorption force, thereby improving the coating quality and making the surface smoother.
[0008] In a preferred embodiment, an electrostatic generator is provided on the inner surface of the arc-shaped flow guide shell near the inner support frame, and a telescopic motor is provided on the inner surface of the arc-shaped flow guide shell.
[0009] By adopting the above technical solution, the electrostatic generator provides stable static electricity to the surrounding area, which facilitates the adsorption of materials after they are introduced. The materials flow on the outer surface of the arc-shaped guide shell and are then sprayed out. The telescopic motor adjusts the position of the ball by telescopic adjustment, thereby squeezing the deformable tube.
[0010] In a preferred embodiment, an adjusting ball is fixedly connected to the outer surface of the output end of the telescopic motor, and a deformable tube is fixedly connected to the outer surface of the telescopic motor.
[0011] By adopting the above technical solution, the telescopic motor causes the adjusting ball to squeeze and expand the deformable tube, thereby making the deformable tube conical and adjusting the radius of the ejection.
[0012] In a preferred embodiment, a detachable tube is detachably connected to the outer surface of the inner fixed tube, and a negative pressure output port is provided on the inner surface of the detachable tube.
[0013] By adopting the above technical solution, the detachable tube provides an installation position for the negative pressure output port. The negative pressure output port generates a vacuum that adsorbs the material on the other side, generating kinetic energy.
[0014] In a preferred embodiment, a fixing block is fixedly connected to the outer surface of the negative pressure output port, and a retaining ring is provided on the outer surface of the fixing block corresponding to the negative pressure output port.
[0015] By adopting the above technical solution, the retaining ring is fixed by rotating and locking it into the corresponding fixing block.
[0016] In a preferred embodiment, a second telescopic motor is provided on the outer surface of the retaining ring, and a baffle is movably connected to the outer surface of the retaining ring. The outer surface of the output end of the second telescopic motor is correspondingly provided on the surface of the baffle.
[0017] By adopting the above technical solution, the extension and retraction of the second telescopic motor drives the baffle, which can be opened and closed in the middle to adjust the spraying width, thus facilitating better coating.
[0018] In a preferred embodiment, the outer surface of the negative pressure pump is provided with a knob and a handle.
[0019] By adopting the above technical solution, the knob adjusts the output power of the negative pressure pump, thereby adjusting the efficiency of material spraying. The handle is convenient to hold, and a button is set below it, which turns on the negative pressure pump by pressing.
[0020] In a preferred embodiment, a connecting pipe is fixedly connected to the outer surface of the negative pressure pump, and a stirring tank is provided on the outer surface of the other end of the connecting pipe.
[0021] By adopting the above technical solution, it is convenient to introduce the liquid coating material inside the mixing tank into the storage tank through the connecting pipe.
[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0023] In this application, the device consists of a built-in negative pressure pump with two output ends. One output end is connected to the storage tank, which facilitates the adsorption of materials stored in the mixing tank and guides them into the storage tank through a connecting pipe. The other output end is connected to a fixed block extending from the front end to a detachable pipe to generate a vacuum for spraying. After being stored in the storage tank, the material is sprayed out through the inwardly contracting sleeve in the middle of the flow guide support frame by the adsorption force of the fixed block at the front end. The electrostatic generator built into the arc-shaped flow guide shell generates static electricity, which can adsorb onto the surface of the arc-shaped flow guide shell when the material is sprayed out. The fan blades of the flow guide support frame agitate the material to ensure uniformity. The inner support frame and the flow guide protrusions provide flow guidance, allowing the material to be fully mixed during its movement. The impurity removal ring provides a buffer at the very end, and large particles are blocked at the impurity removal ring due to the strong electrostatic adsorption force, thereby improving the coating quality and making the surface smoother. Attached Figure Description
[0024] Figure 1 This is a front view of the device in this application;
[0025] Figure 2 This is a side view of the equipment in this application;
[0026] Figure 3 This is an anatomical diagram of the internal structure of the equipment in this application;
[0027] Figure 4 This is a breakdown diagram of the electrostatic adsorption structure in this application;
[0028] Figure 5 This is a schematic diagram of the nozzle connection end structure in this application;
[0029] Figure 6 This is a front view of the flow guide support frame in this application.
[0030] The markings in the diagram are: 1. Negative pressure pump; 2. Storage tank; 3. Protective shell; 4. Flow guide support frame; 5. Inner fixed pipe; 6. Inner support frame; 7. Arc-shaped flow guide shell; 8. Flow guide protrusion; 9. Impurity removal ring; 10. Static generator; 11. Telescopic motor; 12. Adjusting ball; 13. Deformable pipe; 14. Detachable pipe; 15. Negative pressure output port; 16. Fixing block; 17. Locking ring; 18. Second telescopic motor; 19. Baffle; 20. Knob; 21. Handle; 22. Connecting pipe; 23. Mixing tank. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Example:
[0033] Reference Figure 1-6 The vacuum adsorption electrostatic spraying device for door and window coating process includes a negative pressure pump 1, a storage chamber 2 fixedly connected to the outer surface of the negative pressure pump 1, a flow guide support frame 4 fixedly connected to the middle outer surface of the storage chamber 2, a protective shell 3 fixedly connected to the outer surface of the storage chamber 2 corresponding to the flow guide support frame 4, an inner fixed tube 5 fixedly connected to the outer surface of the protective shell 3 corresponding to the flow guide support frame 4, an inner support frame 6 fixedly connected to the inner surface of the inner fixed tube 5, an arc-shaped flow guide shell 7 fixedly connected to the outer surface of the other end of the inner support frame 6, a flow guide protrusion 8 fixedly connected to the outer surface of the arc-shaped flow guide shell 7 near the inner support frame 6, and a debris removal ring 9 detachably connected to the outer surface of the arc-shaped flow guide shell 7 away from the flow guide protrusion 8.
[0034] The device consists of a built-in negative pressure pump 1 with two output ends. One output end connects to the storage chamber 2, facilitating the adsorption of materials stored in the mixing tank 23, which are then introduced into the storage chamber 2 via the connecting pipe 22. The other output end connects to the fixed block 16 extending from the front end to the detachable pipe 14, which generates a vacuum for spraying. After being stored in the storage chamber 2, the material is sprayed out through the inward-contracting sleeve in the middle of the guide support frame 4 by the adsorption force of the fixed block 16 at the front end. The electrostatic generator 10 built into the arc-shaped guide shell 7 generates static electricity, which can adsorb onto the surface of the arc-shaped guide shell 7 when the material is sprayed out. The fan blades of the guide support frame 4 agitate the material to ensure uniformity. The inner support frame 6 and the guide protrusions 8 provide guidance, allowing the material to be fully mixed during its movement. The impurity removal ring 9 provides a buffer at the very end, blocking large particles due to strong electrostatic adsorption, thereby improving the coating quality and making the surface smoother.
[0035] Reference Figure 1-4 An electrostatic generator 10 is provided on the inner surface of the arc-shaped flow guide shell 7 near the inner support frame 6, and a telescopic motor 11 is provided on the inner surface of the arc-shaped flow guide shell 7.
[0036] The electrostatic generator 10 provides stable static electricity to the surrounding area, which facilitates the adsorption of materials after they are introduced. The materials flow on the outer surface of the arc-shaped guide shell 7 and are ejected. The telescopic motor 11 adjusts the position of the ball 12 by telescopic adjustment, thereby squeezing the deformable tube 13.
[0037] Reference Figure 1-4 An adjusting ball 12 is fixedly connected to the outer surface of the output end of the telescopic motor 11, and a deformable tube 13 is fixedly connected to the outer surface of the telescopic motor 11.
[0038] The telescopic motor 11 causes the adjusting ball 12 to squeeze and expand the deformable tube 13 outward, thereby making the deformable tube 13 conical and adjusting the radius of the ejection.
[0039] Reference Figure 1-5 The outer surface of the inner fixed tube 5 is detachably connected to a detachable tube 14, and the inner surface of the detachable tube 14 is provided with a negative pressure output port 15.
[0040] The detachable tube 14 provides an installation position for the negative pressure output port 15, which generates a vacuum to adsorb the material on the other side, generating kinetic energy.
[0041] Reference Figure 1-5 A fixing block 16 is fixedly connected to the outer surface of the negative pressure output port 15, and a retaining ring 17 is provided on the outer surface of the fixing block 16 corresponding to the negative pressure output port 15.
[0042] The retaining ring 17 is rotated and fixed to the corresponding fixing block 16.
[0043] Reference Figure 1-5The outer surface of the retaining ring 17 is provided with a second telescopic motor 18, and a baffle 19 is movably connected to the outer surface of the retaining ring 17. The outer surface of the output end of the second telescopic motor 18 is correspondingly provided on the surface of the baffle 19.
[0044] The extension and retraction of the second telescopic motor 18 drives the baffle 19, which can be opened and closed in the middle to adjust the spray width and facilitate better coating.
[0045] Reference Figure 1-2 The outer surface of the negative pressure pump 1 is provided with a knob 20 and a handle 21.
[0046] Knob 20 adjusts the output power of the negative pressure pump and regulates the efficiency of material spraying. Handle 21 is convenient to hold and has a button below it, which turns on the negative pressure pump by pressing.
[0047] Reference Figure 1-2 A connecting pipe 22 is fixedly connected to the outer surface of the negative pressure pump 1, and a stirring tank 23 is provided on the outer surface of the other end of the connecting pipe 22.
[0048] It facilitates the introduction of liquid coating material from the mixing tank 23 into the storage chamber 2 via the connecting pipe 22.
[0049] The implementation principle of the vacuum adsorption electrostatic spraying device embodiment for the door and window coating process in this application is as follows:
[0050] The device consists of a built-in negative pressure pump 1 with two output ends. One end connects to the storage chamber 2, facilitating the introduction of liquid coating material from the mixing tank 23 into the storage chamber 2 via the connecting pipe 22. The other end connects to the negative pressure output port 15, extending from the front end to the detachable pipe 14, to generate a vacuum for spraying. After being stored in the storage chamber 2, the material is sprayed out through the inwardly contracting sleeve in the middle of the flow guide support frame 4 by the adsorption force of the fixing block 16 at the front end. The electrostatic generator 10 built into the arc-shaped flow guide shell 7 generates static electricity, which attracts the material to the surface of the arc-shaped flow guide shell 7 when it is sprayed out. The fan blades of the flow guide support frame 4 agitate the material to ensure uniformity. The inner support frame 6 and the flow guide protrusions 8 provide flow guidance, allowing the material to be fully mixed during its movement. The impurity removal ring 9 provides a buffer at the very end, where large particles are blocked by strong electrostatic adsorption. The telescopic motor 11 extends and retracts, causing the adjusting ball 12 to squeeze and expand the deformable tube 13, thus adjusting the spray radius. The detachable tube 14 provides an installation position for the negative pressure output port 15. The negative pressure output port 15 generates a vacuum that adsorbs the material on the other side, generating kinetic energy. The inner fixed tube 5 is easily disassembled via threads, thus cleaning the impurity removal ring 9. A fixing block 16 is set on the side away from the inner fixed tube 5, which is fixed by the rotation of the locking ring 17. The extension and retraction of the second telescopic motor 18 drives the baffle 19, which can be opened and closed in the middle to adjust the spray width, thus facilitating better coating.
[0051] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A vacuum suction type electrostatic spraying device for door and window coating process, comprising a negative pressure pump (1), characterized in that: The negative pressure pump (1) has a storage tank (2) fixedly connected to its outer surface. The storage tank (2) has a flow guide support frame (4) fixedly connected to its middle outer surface. The storage tank (2) has a protective shell (3) fixedly connected to the outer surface of the flow guide support frame (4). The protective shell (3) has an inner fixed tube (5) fixedly connected to the outer surface of the flow guide support frame (4). The inner fixed tube (5) has an inner support frame (6) fixedly connected to its inner surface. The inner support frame (6) has an arc-shaped flow guide shell (7) fixedly connected to its outer surface at the other end. The arc-shaped flow guide shell (7) has a flow guide protrusion (8) fixedly connected to its outer surface on the side closer to the inner support frame (6). The arc-shaped flow guide shell (7) has a detachable impurity removal ring (9) detachably connected to its outer surface on the side away from the flow guide protrusion (8).
2. The vacuum chucking type electrostatic spray coating apparatus for door and window coating process according to claim 1, wherein: An electrostatic generator (10) is provided on the inner surface of the arc-shaped flow guide shell (7) near the inner support frame (6), and a telescopic motor (11) is provided on the inner surface of the arc-shaped flow guide shell (7).
3. The vacuum chucking type electrostatic spray coater for door and window coating process according to claim 2, wherein: An adjusting ball (12) is fixedly connected to the outer surface of the output end of the telescopic motor (11), and a deformable tube (13) is fixedly connected to the outer surface of the telescopic motor (11).
4. The vacuum chucking type electrostatic spray coater for door and window coating process according to claim 1, wherein: The outer surface of the inner fixed tube (5) is detachably connected to a detachable tube (14), and the inner surface of the detachable tube (14) is provided with a negative pressure output port (15).
5. The vacuum chucking type electrostatic spray coater for door and window coating process according to claim 4, wherein: A fixing block (16) is fixedly connected to the outer surface of the negative pressure output port (15), and a retaining ring (17) is provided on the outer surface of the fixing block (16) corresponding to the negative pressure output port (15).
6. The vacuum chucking type electrostatic spray coating apparatus for door and window coating process according to claim 5, wherein: The outer surface of the retaining ring (17) is provided with a second telescopic motor (18), and a baffle (19) is movably connected to the outer surface of the retaining ring (17). The outer surface of the output end of the second telescopic motor (18) is correspondingly provided on the surface of the baffle (19).
7. The vacuum chucking type electrostatic spray coater for door and window coating process as claimed in claim 1, wherein: The negative pressure pump (1) has a knob (20) on its outer surface and a handle (21) on its outer surface.
8. The vacuum chucking type electrostatic spray coater for door and window coating process according to claim 1, wherein: The negative pressure pump (1) has a connecting pipe (22) fixedly connected to its outer surface, and a stirring tank (23) is provided on the outer surface of the other end of the connecting pipe (22).