Quantitative spraying device for chromium-free passivation treatment agent for metal surface machining
By employing a dual stirring mechanism and an automated workpiece loading and unloading design, the problem of uneven solution in chromium-free passivation spraying equipment has been solved, achieving efficient and uniform spraying and rapid curing, thereby improving spraying quality and production efficiency.
Patent Information
- Application Number
- CN202520275373.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing chromium-free passivation spraying equipment is prone to precipitation or stratification of the treatment agent when left to stand for a long time or when there is insufficient stirring. This leads to inconsistent solution concentration during the spraying process, affecting the coating quality. Furthermore, traditional stirring methods cannot fully mix the coating, resulting in uneven coating thickness and poor adhesion.
It adopts a dual stirring mechanism. The first motor drives the stirring shaft and L-shaped plate for initial stirring, and the second motor drives the rotating shaft and the inclined and staggered stirring blades for further stirring to ensure the uniformity of the solution. Combined with the electric telescopic rod, it realizes the automated loading and unloading of the workpiece, and is equipped with a drying device for rapid curing.
It achieves uniform mixing of the solution, avoids precipitation and stratification, ensures coating quality, improves production efficiency, reduces labor intensity, and can quickly form a stable passivation film after coating.
Smart Images
Figure CN223852781U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to metal surface treatment equipment technical field, concretely is a kind of metal surface processing with chromium-free passivation treatment agent quantitative spraying device. BACKGROUND
[0002] It is known that with the continuous development of industrial technology, metal surface treatment technology plays an important role in improving material corrosion resistance, improving appearance quality and prolonging service life. Traditional metal surface treatment spraying method is mostly using chromium passivation agent, but due to the toxicity of hexavalent chromium and serious pollution to the environment, it has been restricted in many countries and regions. Therefore, the development of environmentally friendly chromium-free passivation treatment technology has become the focus of current research. At present, there are some chromium-free passivation spraying treatment equipment on the market, but these devices generally have the following problems.
[0003] The existing chromium-free passivation spraying device is prone to precipitation or stratification under the condition of long-time standing or insufficient stirring, which leads to inconsistent solution concentration in the spraying process, affects the coating quality, and the traditional stirring device usually adopts simple stirring mode driven by single motor, which cannot fully mix the components in chromium-free passivation treatment agent. If the treatment agent cannot maintain uniform state, coating thickness may not be uniform, adhesion may be poor and other problems may occur during spraying. UTILITY MODEL CONTENT
[0004] (I) Technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides a chromium-free passivation treatment agent quantitative spraying device for metal surface processing.
[0006] (II) Technical scheme
[0007] To achieve the above object, the utility model provides following technical scheme: A kind of chrome-free passivation treatment agent quantitative spraying device for metal surface processing, including workbench, box, storage tank, spray head, drying device and stirring device, the top of the workbench is equipped with the box, the front end and the lower end of the box are all provided with opening, the back wall of the box is equipped with the drying device, placing frame is installed in the box by drive arrangement, the top of the box is equipped with the storage tank, the top of the storage tank is equipped with feed pipe, the bottom of the storage tank is equipped with discharge pipe, the bottom wall of the discharge pipe is equipped with spray head and penetrates the bottom wall of the box, the outer wall of the discharge pipe is equipped with solenoid valve, the stirring device is installed in the storage tank, the stirring device includes first motor, stirring shaft, L-shaped plate, stirring rod, second motor, shaft and stirring blade, the top wall of the storage tank is equipped with the first motor, the output of the first motor is equipped with the stirring shaft and penetrates the top wall of the storage tank, the left and right ends of the stirring shaft are all equipped with the L-shaped plate, the inner side wall of two groups of L-shaped plates is all equipped with the stirring rod, the bottom wall of the stirring shaft is equipped with the second motor, the output of the second motor is equipped with the shaft, the outer wall of the shaft is annularly equipped with multiple groups of stirring blades that are inclined and staggered with the stirring rod.
[0008] Further, the utility model improves, drive arrangement includes electric telescopic handle, the back wall of the box is equipped with the electric telescopic handle, the output of the electric telescopic handle penetrates the back wall of the box and extends to the inner chamber of the box and is fixedly connected with the back wall of the placing frame.
[0009] Further, the utility model improves, and the drying device includes drying machine, and the drying machine is installed in the inner back wall of the box.
[0010] Further, the utility model improves, and the outer wall of two groups of L-shaped plates is all equipped with scraper.
[0011] Further, the utility model improves, and the outer wall of the second motor is equipped with protective shell.
[0012] Further, the utility model improves, and the front end side wall of the box is equipped with sliding slot, the baffle is slidably installed in the sliding slot, and the end of the baffle close to the opening is equipped with limit block.
[0013] Further, the utility model improves, and the first motor and the second motor are all servo motor.
[0014] Further, the utility model improves, and the bottom of the workbench is equipped with support leg in four corners.
[0015] (Three) beneficial effects
[0016] Compared with the prior art, the metal surface processing chromium-free passivation treatment agent quantitative spraying device has the following beneficial effects:
[0017] The metal surface processing chromium-free passivation treatment agent quantitative spraying device, through the stirring device, the first motor drives the stirring shaft to rotate, the L-shaped plate and the stirring rod preliminarily stir the treatment agent in the storage tank, the second motor drives the rotating shaft to rotate, and the stirring blades on the rotating shaft further stir the treatment agent in an inclined and staggered manner, so that the solution is more uniform, the rotating direction of the second motor is opposite to that of the first motor, the mixing between different levels of liquid is promoted, the complexity of liquid flow is enhanced, local precipitation or stratification is avoided, the double stirring mechanism can continuously stir the solution, the stability of the whole solution is maintained, and it is ensured that the solution used for spraying each time is uniform and effective.
[0018] The metal surface processing chromium-free passivation treatment agent quantitative spraying device, through the driving device and the drying device, the introduction of the electric telescopic rod realizes the automatic control of the metal workpiece in and out of the box, reduces manual intervention, the operator only needs to be responsible for placing and taking out the workpiece, and other processes are completely automatically completed by the equipment, so that the labor intensity is reduced, the production efficiency is improved, the workpiece is dried immediately after spraying through the drying machine, it is ensured that the treatment agent after spraying can be quickly solidified to form a stable passivation film, and the spraying quality is significantly improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a first angle three-dimensional structure schematic view of the utility model;
[0020] Figure 2 It is a second angle three-dimensional structure schematic view of the utility model;
[0021] Figure 3 It is a storage tank half cut three-dimensional structure schematic view of the utility model;
[0022] Figure 4 It is a local A place enlarged structure schematic view of the utility model; Figure 3
[0023] In the drawing: 1, workbench; 2, box; 3, storage tank; 4, spray head; 5, opening; 6, placing frame; 7, feeding pipe; 8, discharge pipe; 9, electromagnetic valve; 10, first motor; 11, stirring shaft; 12, L-shaped plate; 13, stirring rod; 14, second motor; 15, rotating shaft; 16, stirring blade; 17, electric telescopic rod; 18, drying machine; 19, scraper; 20, protective shell; 21, sliding groove; 22, baffle; 23, limiting block; 24, supporting leg. DETAILED DESCRIPTION
[0024] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0025] Please refer to Figures 1-4The application discloses a chromium-free passivation treatment agent quantitative spraying device for metal surface processing, which comprises a workbench 1, a box body 2, a storage tank 3, a spray head 4, a drying device and a stirring device, the top end of the workbench 1 is provided with the box body 2, the front end and the lower end of the box body 2 are both provided with an opening 5, the back wall of the box body 2 is provided with the drying device, the box body 2 is provided with a placing frame 6 through a driving device, the top end of the box body 2 is provided with the storage tank 3, the top end of the storage tank 3 is provided with a feeding pipe 7, the bottom end of the storage tank 3 is provided with a discharging pipe 8, the bottom wall of the discharging pipe 8 penetrates through the bottom wall of the box body 2 and is provided with the spray head 4, the outer wall of the discharging pipe 8 is provided with an electromagnetic valve 9, the storage tank 3 is provided with the stirring device, the stirring device comprises a first motor 10, a stirring shaft 11, an L-shaped plate 12, a stirring rod 13, a second motor 14, a rotating shaft 15 and stirring blades 16, the top wall of the storage tank 3 is provided with the first motor 10, the output end of the first motor 10 penetrates through the top wall of the storage tank 3 and is provided with the stirring shaft 11, the left and right ends of the stirring shaft 11 are both provided with the L-shaped plate 12, the inner side walls of the two groups of L-shaped plates 12 are both provided with the stirring rod 13, the bottom wall of the stirring shaft 11 is provided with the second motor 14, the output end of the second motor 14 is provided with the rotating shaft 15, and the outer wall of the rotating shaft 15 is annularly provided with a plurality of stirring blades 16 which are inclined and staggered with the stirring rod 13, in the application, the chromium-free passivation treatment agent is added into the storage tank 3 through the feeding pipe 7, the first motor 10 of the stirring device is started to drive the stirring shaft 11 to rotate, the L-shaped plate 12 and the stirring rod 13 on the stirring shaft 11 start to preliminarily stir the treatment agent in the storage tank 3, so that the solution is uniformly mixed, meanwhile, the second motor 14 is started, the output end of the second motor 14 drives the rotating shaft 15 to rotate, the stirring blades 16 on the rotating shaft 15 further stir the treatment agent in an inclined and staggered mode, so that the solution is more uniform, the rotating direction of the second motor 14 is opposite to that of the first motor 10, the inclined and staggered stirring blades 16 increase the turbulent effect of liquid flow, promote the mixing between different levels of liquid, make the stirring process more rapid and thorough, the double stirring mechanism can continuously stir the solution, enhance the complexity of liquid flow, and avoid local precipitation or stratification, then the placing frame 6 is pushed out of the box body 2 through the driving device under the control of a control system, then a metal workpiece is placed in the placing frame 6, then the placing frame 6 is sent into the box body 2 through the driving device, the electromagnetic valve 9 is opened, the chromium-free passivation treatment agent in the storage tank 3 flows to the spray head 4 through the discharging pipe 8, and the spray head 4 uniformly sprays the treatment agent to the surface of the metal workpiece in the placing frame 6, since the stirring device continuously works, the treatment agent in the storage tank 3 always keeps in a uniform state in the spraying process, after the spraying is completed, the drying device is started to rapidly dry the sprayed workpiece, finally, the placing frame 6 is moved out of the box body 2 through the driving device, and the treated workpiece is taken out.
[0026] Preferably, in this embodiment, the driving device includes an electric telescopic rod 17, the electric telescopic rod 17 is installed on the back wall of the box body 2, the output end of the electric telescopic rod 17 penetrates the back wall of the box body 2 and extends into the inner cavity of the box body 2 and is fixedly connected with the back wall of the placing frame 6, the output end of the electric telescopic rod 17 drives the placing frame 6 to extend, then the metal workpiece to be processed is placed in the placing frame 6, and the electric telescopic rod 17 is started again, the output end of the electric telescopic rod 17 is retracted into the inner cavity of the box body 2, and the placing frame 6 is stably moved into the box body 2 under the action of the electric telescopic rod 17, the placing frame 6 is fixed at a specified position in the box body 2 under the action of the electric telescopic rod 17, so that the workpiece can be kept stable during spraying and drying, after the spraying and drying are completed, the output end of the electric telescopic rod 17 extends outward, the placing frame 6 is pushed out of the box body 2 to the opening 5 at the front end of the box body 2, and finally the metal workpiece processed is taken out, the introduction of the electric telescopic rod 17 realizes automatic control of the metal workpiece entering and leaving the box body 2, reduces manual intervention, improves production efficiency, and labor intensity is reduced.
[0027] Preferably, in this embodiment, the drying device includes a drying machine 18, the drying machine 18 is installed on the inner back wall of the box body 2, after the metal workpiece completes spraying of the chrome-free passivation treatment agent, the control system automatically starts the drying machine 18 installed on the inner back wall of the box body 2, and the drying machine 18 heats the sprayed workpiece, since the drying machine 18 is installed on the inner back wall of the box body 2, heat is transferred from back to front, a uniform heat field is formed, and drying efficiency is improved.
[0028] Preferably, in this embodiment, the outer walls of the two groups of L-shaped plates 12 are both provided with scrapers 19, during stirring, the chrome-free passivation treatment agent may be attached to the inner wall of the storage tank 3 due to viscosity, the scraper 19 is close to the inner wall of the storage tank 3 and continuously scrapes off the attached treatment agent with the rotation of the L-shaped plate 12, so as to reduce residue and avoid waste, the scraper 19 can scrape the treatment agent on the inner wall of the storage tank 3 into the stirring area again, so as to ensure that all materials can fully participate in mixing, and this design helps to improve stirring uniformity and avoid the problem of inconsistent treatment agent concentration caused by local non-stirring.
[0029] Preferably, in this embodiment, the outer wall of the second motor 14 is provided with a protective shell 20, the protective shell 20 can prevent chemical substances from corroding the motor shell or internal components, thereby prolonging the service life of the motor.
[0030] Preferably, in the embodiment, the front end side wall of the box 2 is provided with a sliding groove 21, a baffle 22 is slidingly installed in the sliding groove 21, and a limiting block 23 is installed at one end of the baffle 22 close to the opening 5. The baffle 22 can completely block the opening 5 in the closed state, prevent the treatment agent from splashing outside during spraying, protect the safety of the operator, effectively block the external air from entering the box 2, avoid the pollution of dust or other impurities to the spraying environment, and the baffle 22 is slidingly opened and closed through the sliding groove 21, which is simple and fast to operate, convenient for putting or taking out the metal workpiece, and the limiting block 23 ensures that the baffle 22 can accurately prevent the baffle 22 from being separated from the sliding groove 21 when closed.
[0031] Preferably, in the embodiment, the first motor 10 and the second motor 14 are both servo motors, which can realize accurate speed control and can flexibly adjust the stirring speed according to process requirements. For example, different stirring speeds can be set when treating chromium-free passivation treatment agents with different viscosities or components.
[0032] Preferably, in the embodiment, the bottom corners of the workbench 1 are provided with supporting legs 24, which are evenly distributed at the bottom corners of the workbench 1, can effectively disperse the overall weight of the equipment, and ensure that the equipment remains stable during operation.
[0033] In order to explain the possible application scenarios, technical principles, specific implementation schemes, and the purposes and effects that can be achieved of the present application, the specific embodiments are described in detail below in combination with the drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.
[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A quantitative spraying device for a chromium-free passivation agent for metal surface processing, comprising a workbench (1), a housing (2), a storage tank (3), a spray nozzle (4), a drying device, and a stirring device, characterized in that: The top end of the workbench (1) is provided with the box (2), the front end and the lower end of the box (2) are provided with openings (5), the back wall of the box (2) is provided with the drying device, the box (2) is provided with a placing frame (6) through a driving device, the top end of the box (2) is provided with the storage tank (3), the top end of the storage tank (3) is provided with a feeding pipe (7), the bottom end of the storage tank (3) is provided with a discharging pipe (8), the bottom wall of the discharging pipe (8) penetrates the bottom wall of the box (2) and is provided with a spray head (4), the outer wall of the discharging pipe (8) is provided with a solenoid valve (9), the storage tank (3) is provided with the stirring device, the stirring device comprises a first motor (10), a stirring shaft (11), an L-shaped plate (12), a stirring rod (13), a second motor (14), a rotating shaft (15) and a stirring blade (16), the top wall of the storage tank (3) is provided with the first motor (10), the output end of the first motor (10) penetrates the top wall of the storage tank (3) and is provided with the stirring shaft (11), the left and right ends of the stirring shaft (11) are provided with the L-shaped plate (12), the inner side walls of the two groups of L-shaped plates (12) are provided with the stirring rod (13), the bottom wall of the stirring shaft (11) is provided with the second motor (14), the output end of the second motor (14) is provided with the rotating shaft (15), and the outer wall of the rotating shaft (15) is annularly provided with a plurality of stirring blades (16) which are inclined and staggered with the stirring rod (13).
2. The chromium-free passivation treatment agent quantitative spraying device for metal surface processing according to claim 1, characterized in that: The driving device comprises an electric telescopic rod (17), the back wall of the box (2) is provided with the electric telescopic rod (17), and the output end of the electric telescopic rod (17) penetrates the back wall of the box (2) and extends into the inner cavity of the box (2) and is fixedly connected with the back wall of the placing frame (6).
3. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 2, characterized in that: The drying device comprises a drying machine (18), and the drying machine (18) is installed on the inner back wall of the box (2).
4. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 3, characterized in that: The outer walls of the two groups of L-shaped plates (12) are provided with scrapers (19).
5. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 4, characterized in that: The outer wall of the second motor (14) is provided with a protective shell (20).
6. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 5, characterized in that: The front end side wall of the box (2) is provided with a chute (21), the chute (21) is provided with a baffle (22) which is slidably installed, and one end of the baffle (22) close to the opening (5) is provided with a limiting block (23).
7. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 6, characterized in that: The first motor (10) and the second motor (14) are both servo motors.
8. The chromium-free passivation agent quantitative spraying device for metal surface processing according to claim 7, characterized in that: The bottom end of the workbench (1) is provided with supporting legs (24) at four corners.