A spraying device for producing a steel structural member

By using a modular robotic arm and a three-way adjustment mechanism for the spraying device, combined with negative pressure recovery and flexible baffles, the problems of atomized particle diffusion and paint waste during the spraying process are solved, achieving safety and coating uniformity in the spraying process, and reducing production costs and environmental risks.

CN224405485UActive Publication Date: 2026-06-26LINYI XINGSHENG STEEL STRUCTURE ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LINYI XINGSHENG STEEL STRUCTURE ENG CO LTD
Filing Date
2025-05-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing spraying equipment in steel structure component production suffers from several problems: the long distance between the spraying and recovery air ducts leads to the diffusion of atomized particles; solvent-based coatings cause the accumulation of volatile gases, resulting in high health risks for operators; and the unstable nozzle distance leads to uneven coating thickness and significant paint waste.

Method used

The system employs a modular robotic arm and a three-way adjustment mechanism in conjunction with the spraying mechanism. It uses laser distance detection to adjust the nozzle position in real time, combined with a negative pressure recovery air duct and a primary filtration device to ensure the capture of atomized particles and the recovery of paint. Flexible baffles shield non-spraying areas to reduce paint splashing.

Benefits of technology

It achieves effective capture of atomized particles during the spraying process, reduces health risks to operators, avoids the accumulation of flammable gases, ensures uniform coating thickness, reduces paint waste, and improves production efficiency and environmental compliance.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of spraying devices for steel structural member production, including connecting shell, the modular mechanical arm is set in the connecting shell inside bottom end, further including the three-way adjusting mechanism being set on modular mechanical arm, the spraying mechanism is set in the front end of three-way adjusting mechanism, a kind of spraying device for steel structural member production, by spray head, centrifugal fan, flexible baffle and negative pressure recovery air duct, ensure that stable negative pressure field is formed before coating atomization, timely capture atomized particle, prevent paint mist from spreading to workshop environment, reduce the risk that operator inhales paint mist, simultaneously avoid the explosion hidden danger caused by flammable gas accumulation in workshop, cooperate primary filter device and paint mist separation equipment, solvent-based coating after separation can be recycled, water-based paint can be treated and discharged up to standard, reduce hazardous waste disposal quantity, reduce environmental protection compliance cost, efficiently recover splashed coating, reduce material loss.
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Description

Technical Field

[0001] This utility model relates to the field of spraying technology, specifically a spraying device for the production of steel structural components. Background Technology

[0002] In the production of steel structural components, the spraying process is a key link to ensure product quality and performance. Steel structural components often need to be mass-produced. Traditional manual spraying is inefficient and difficult to match the rhythm of assembly line operations. By setting up spraying equipment on the production line, the entire process can be automated, which has the benefits of reducing labor costs and increasing output.

[0003] Existing devices typically activate the recovery system after spraying begins. However, the distance between the spraying and recovery air ducts is relatively far, making it difficult for the recovery air ducts to effectively absorb diffused atomized particles. This leads to the accumulation of flammable gases from solvent-based coatings in the workshop, causing operators to inhale paint mist for extended periods, potentially leading to respiratory illnesses. Furthermore, the existing nozzle-workpiece distance is unstable, resulting in uneven coating thickness and significant paint waste. Relying on operator experience to adjust nozzle positions makes it difficult to precisely control the distance, leading to coating quality defects.

[0004] Therefore, this utility model provides a spraying device for the production of steel structural components to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a spraying device for the production of steel structural components, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a spraying device for producing steel structural components, including a connecting shell, a modular robotic arm provided at the bottom inner side of the connecting shell, a three-way adjustment mechanism provided on the modular robotic arm, a spraying mechanism provided at the front end of the three-way adjustment mechanism, and a camera provided at the bottom of the connecting shell;

[0007] The three-way adjustment mechanism includes a first fixed plate and a first electric rotating component. The first electric rotating component is rotatably connected to the output end of the modular robotic arm. A first connecting component is rotatably connected to the first electric rotating component, and a second electric rotating component is fixedly connected to the first connecting component.

[0008] The spraying mechanism includes a second fixed plate and a flexible baffle. The second fixed plate is fixedly connected to the first fixed plate, and a second electric push rod is fixedly connected to the second fixed plate. The first fixed plate is fixedly connected to the spray nozzle. The spray nozzle is connected to the liquid storage tank and the compressed air source through pipes. Valves are installed on the pipes. A negative pressure recovery air duct is opened on the inner side of the flexible baffle. The flexible baffle is connected to the centrifugal fan through pipes. A regulating valve is installed on the pipes.

[0009] Preferably, a plurality of first electric push rods are provided on the side of the connecting housing, and a horizontal rotating base is provided on the lower side of the connecting housing. A vertical lifting mechanism is fixedly connected to the horizontal rotating base, and the vertical lifting mechanism can drive the workpiece to tilt and rotate ±° in the XY plane.

[0010] Preferably, the bottom end of the first fixed plate is provided with a sliding groove, and the second electric rotating component is rotatably connected to a second connecting component.

[0011] Preferably, a third electric rotating component is fixedly connected to the second connecting component, and a third connecting component is rotatably connected to the front end of the third electric rotating component, and the first fixing plate is bolted to the third connecting component.

[0012] Preferably, the spraying mechanism further includes a movable plate, which is slidably connected to the first fixed plate via a groove provided on the first fixed plate. A connecting plate is fixedly connected to the first fixed plate, and a third rotating component is rotatably connected to the connecting plate. A first connecting rod is rotatably connected to the third rotating component, and the first connecting rod is fixedly connected to the bottom end of the flexible baffle. A laser distance detection mechanism is provided on the first fixed plate.

[0013] Preferably, a second connecting rod is fixedly connected to the side end of the first connecting rod, and a first moving wheel and a second moving wheel are provided on the second connecting rod. A third electric push rod is fixedly connected to the bottom end of the first fixed plate, and a push plate is fixedly connected to the output end of the third electric push rod. A moving groove is provided on the push plate, and the push plate is placed between the second moving wheel and the first moving wheel. The second connecting rod is slidably connected in the moving groove.

[0014] Preferably, the first electric push rod, the first electric rotating component, the second electric rotating component, the third electric rotating component, the laser distance detection mechanism, the second electric push rod, and the third electric push rod are electrically connected to the power supply.

[0015] Preferably, a primary filter and a paint mist separation device are added to the negative pressure air duct.

[0016] Beneficial effects

[0017] This utility model provides a spraying device for the production of steel structural components. Compared with the prior art, it has the following advantages:

[0018] (1) A spraying device for steel structure component production, which, through a spray nozzle, centrifugal fan, flexible baffle and negative pressure recovery air duct, ensures the formation of a stable negative pressure field before the paint atomizes, timely captures atomized particles, prevents paint mist from spreading into the workshop environment, reduces the risk of operators inhaling paint mist and exposure to harmful substances, and avoids the accumulation of combustible gas in the workshop to prevent explosion hazards. With the help of a primary filtration device and paint mist separation equipment, the solvent-based paint after separation can be recycled and reused, and the water-based paint can be treated to meet emission standards, reducing the amount of hazardous waste treatment, reducing environmental compliance costs, efficiently recovering splashed paint, and reducing material loss.

[0019] (2) A spraying device for producing steel structural parts, comprising a third electric push rod, a push plate, a moving wheel, a connecting rod and a driving flexible baffle, which, together with a rotating component, achieves the baffle tilting forward to block non-spraying areas, thereby preventing atomized paint from splashing onto the outside of the workpiece or adjacent areas, reducing post-processing steps and improving the reliability of the shielding.

[0020] (3) A spraying device for producing steel structural parts, wherein a laser distance detection mechanism monitors the distance between the nozzle and the workpiece surface in real time, and drives the moving plate to slide in the groove of the fixed plate through the second electric push rod, dynamically adjusting the nozzle position to ensure that the spraying distance is always maintained in the optimal range, avoiding paint accumulation due to too close distance and atomized particles scattering due to too far distance, and reducing paint waste. Attached Figure Description

[0021] Figure 1 This is a side view of the overall device structure of this utility model;

[0022] Figure 2 This is a side view of the modular robotic arm of this utility model;

[0023] Figure 3 This is a side view of the three-way adjustment mechanism of this utility model;

[0024] Figure 4 This is a side view of the spraying mechanism of this utility model;

[0025] Figure 5 This is a side view of a portion of the spraying mechanism of this utility model;

[0026] Figure 6 This is a side view of the internal structure of the spraying mechanism of this utility model.

[0027] In the diagram: 1. Connecting shell; 2. Horizontal rotating base; 3. Vertical lifting mechanism; 4. Modular robotic arm; 5. First electric push rod;

[0028] Three-way adjustment mechanism: 61. First electric rotating component; 62. First connecting component; 63. Second electric rotating component; 64. Second connecting component; 65. Third electric rotating component; 66. Third connecting component; 67. First fixing plate;

[0029] Spraying mechanism: 71. Laser distance detection mechanism; 72. Second electric push rod; 73. Second fixed plate; 74. Moving plate; 75. Spray head; 76. Flexible baffle; 77. First connecting rod; 78. Third rotating component; 79. Connecting plate; 791. Second connecting rod; 792. First moving wheel; 793. Second moving wheel; 794. Push plate; 795. Moving groove; 796. Third electric push rod. Detailed Implementation

[0030] 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.

[0031] Example 1:

[0032] Please see Figure 1-6 A spraying device for producing steel structural components includes a connecting shell 1, a modular robotic arm 4 is provided at the bottom of the inner side of the connecting shell 1, a three-way adjustment mechanism is provided on the modular robotic arm 4, a spraying mechanism is provided at the front end of the three-way adjustment mechanism, and a camera is provided at the bottom of the connecting shell 1.

[0033] The three-way adjustment mechanism includes a first fixed plate 67 and a first electric rotating component 61. The first electric rotating component 61 is rotatably connected to the output end of the modular robotic arm 4. A first connecting component 62 is rotatably connected to the first electric rotating component 61, and a second electric rotating component 63 is fixedly connected to the first connecting component 62.

[0034] The spraying mechanism includes a second fixed plate 73 and a flexible baffle 76. The second fixed plate 73 is fixedly connected to the first fixed plate 67. A second electric push rod 72 is fixedly connected to the second fixed plate 73. A spray head 75 is fixedly connected to the first fixed plate 67. The spray head 75 is connected to the liquid storage tank and the compressed air source through pipes. Valves are installed on the pipes. A negative pressure recovery air duct is opened on the inner side of the flexible baffle 76. The flexible baffle 76 is connected to the centrifugal fan through pipes. A regulating valve is installed on the pipes.

[0035] Several first electric push rods 5 are provided on the side of the connecting housing 1, and a horizontal rotating base 2 is provided on the lower side of the connecting housing 1. A vertical lifting mechanism 3 is fixedly connected to the horizontal rotating base 2. The vertical lifting mechanism 3 can drive the workpiece to tilt and rotate at ±45 degrees and 45 degrees in the XY plane.

[0036] The bottom end of the first fixed plate 67 is provided with a sliding groove, and the second electric rotating component 63 is rotatably connected to the second connecting component 64.

[0037] A third electric rotating component 65 is fixedly connected to the second connecting component 64. A third connecting component 66 rotates on the front end of the third electric rotating component 65. The first fixing plate 67 is bolted to the third connecting component 66.

[0038] The spraying mechanism also includes a movable plate 74, which is slidably connected to the first fixed plate 67 via a groove provided on the first fixed plate 67. A connecting plate 79 is fixedly connected to the first fixed plate 67, and a third rotating component 78 is rotatably connected to the connecting plate 79. A first connecting rod 77 is rotatably connected to the third rotating component 78. The first connecting rod 77 is fixedly connected to the bottom end of the flexible baffle 76. A laser distance detection mechanism 71 is provided on the first fixed plate 67.

[0039] A second connecting rod 791 is fixedly connected to the side end of the first connecting rod 77. A first moving wheel 792 and a second moving wheel 793 are provided on the second connecting rod 791. A third electric push rod 796 is fixedly connected to the bottom end of the first fixed plate 67. A push plate 794 is fixedly connected to the output end of the third electric push rod 796. A moving groove 795 is provided on the push plate 794. The push plate 794 is placed between the second moving wheel 793 and the first moving wheel 792. The second connecting rod 791 is slidably connected in the moving groove 795.

[0040] Working process: The workpiece is placed on the vertical lifting mechanism 3. The height of the workpiece is adjusted using the horizontal rotating base 2, and the vertical lifting mechanism 3 is started to rotate, thereby adjusting the appropriate angle. The electric push rod 5 is then activated, causing it to press and fix the workpiece inward, thus clamping it. The modular robotic arm 4 is then activated, and with the camera adjustment, the angle is adjusted so that the three-way adjustment mechanism is placed inside the workpiece. The first electric rotating component 61 rotates, driving the first connecting component 62 to rotate; the second electric rotating component 63 rotates, driving the second connecting component 64 to rotate; and the third electric rotating component 65 rotates, driving the third connecting component 66 to rotate. The spray nozzle 75 is placed inside the workpiece and sprays the inside of the workpiece. The spray nozzle 75 sprays the inside of the workpiece. Finally, the laser distance detection mechanism 71 detects the distance between the workpiece and the spray nozzle. The distance between the heads 75 is adjusted so that the second electric push rod 72 is activated to move the moving plate 74 along the groove set on the fixed plate 67. Then, the third electric push rod 796 is activated to extend and retract, causing the pushing plate 794 to move closer to or away from the laser distance detection mechanism 71. This causes the second moving wheel 793 and the first moving wheel 792 to move up and down along the moving groove 795. The second connecting rod 791 drives the flexible baffle 76 to move inward. The rotating part 78 rotates, causing the flexible baffle 76 to move forward. When the nozzle 75 is spraying, the centrifugal fan is started 0.5 seconds in advance after the nozzle 75 starts spraying to ensure that a stable negative pressure field is established before the paint atomizes. A primary filter and paint mist separation device are added in the negative pressure air duct. The centrifugal fan is started to recover excess paint through the negative pressure recovery air duct.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] 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 process, method, article, or apparatus.

[0043] 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. A spraying device for producing steel structural components, comprising a connecting shell (1), wherein a modular robotic arm (4) is provided at the bottom inner side of the connecting shell (1), characterized in that, It also includes a three-way adjustment mechanism on the modular robotic arm (4), a spraying mechanism at the front end of the three-way adjustment mechanism, a camera at the bottom end of the connecting shell (1), and a vision camera on the modular robotic arm (4); The three-way adjustment mechanism includes a first fixed plate (67) and a first electric rotating component (61). The first electric rotating component (61) is rotatably connected to the output end of the modular robotic arm (4). A first connecting component (62) is rotatably connected to the first electric rotating component (61), and a second electric rotating component (63) is fixedly connected to the first connecting component (62). The spraying mechanism includes a second fixed plate (73) and a flexible baffle (76). The second fixed plate (73) is fixedly connected to a first fixed plate (67). A second electric push rod (72) is fixedly connected to the second fixed plate (73). A nozzle (75) is fixedly connected to the first fixed plate (67). The nozzle (75) is connected to a liquid storage tank and a compressed air source through pipes. A valve is installed on the pipe. A negative pressure recovery air duct is opened on the inner side of the flexible baffle (76). The flexible baffle (76) is connected to a centrifugal fan through a pipe. A regulating valve is installed on the pipe.

2. The spraying device for producing steel structural components according to claim 1, characterized in that: The connecting housing (1) is provided with several first electric push rods (5) on its side. The connecting housing (1) is provided with a horizontal rotating base (2) on its lower side. A vertical lifting mechanism (3) is fixedly connected to the horizontal rotating base (2). The vertical lifting mechanism (3) can drive the workpiece to tilt and rotate at ±45° in the XY plane.

3. The spraying device for producing steel structural components according to claim 1, characterized in that: The bottom end of the first fixed plate (67) is provided with a sliding groove, and the second electric rotating part (63) is rotatably connected to the second connecting part (64).

4. The spraying device for producing steel structural components according to claim 3, characterized in that: A third electric rotating component (65) is fixedly connected to the second connecting component (64), and a third connecting component (66) is rotatably connected to the front end of the third electric rotating component (65). The first fixing plate (67) is bolted to the third connecting component (66).

5. A spraying device for producing steel structural components according to claim 4, characterized in that: The spraying mechanism also includes a movable plate (74), which is slidably connected to the first fixed plate (67) via a groove provided on the first fixed plate (67). A connecting plate (79) is fixedly connected to the first fixed plate (67), and a third rotating component (78) is rotatably connected to the connecting plate (79). A first connecting rod (77) is rotatably connected to the third rotating component (78), and the first connecting rod (77) is fixedly connected to the bottom end of the flexible baffle (76). A laser distance detection mechanism (71) is provided on the first fixed plate (67).

6. A spraying device for producing steel structural components according to claim 5, characterized in that: The first connecting rod (77) is fixedly connected to the side end of the second connecting rod (791), and the second connecting rod (791) is provided with the first moving wheel (792) and the second moving wheel (793). The bottom end of the first fixed plate (67) is fixedly connected to the third electric push rod (796), and the output end of the third electric push rod (796) is fixedly connected to the push plate (794). The push plate (794) is provided with the moving groove (795), and the push plate (794) is placed between the second moving wheel (793) and the first moving wheel (792). The second connecting rod (791) is slidably connected in the moving groove (795).