An automatic paint spraying device driven by a stepping motor for a ship

Abstract

This application discloses a marine automatic painting fixture driven by a stepper motor, comprising: a shielding cover, an upper fixing plate fixedly mounted on the upper surface of the shielding cover; an automatic moving component fixedly connected to the upper surface of the upper fixing plate, a movable linear slide mounted on the automatic moving component, a guide slider fixedly connected to one side of the linear slide, a paint nozzle fixedly mounted on the guide slider, a filter component also mounted on the side of the shielding cover; and a synchronously movable paint mist interception component mounted on the side of the paint nozzle. This application designs a linkage structure between the automatic moving component, the paint nozzle, and the paint mist interception component. The stepper motor drives the linear slide to move the paint nozzle back and forth according to a set stroke, thereby ensuring the consistency of the paint film thickness. At the same time, the paint mist interception component reduces lateral paint mist diffusion through its follow-up interception, thus controlling the paint mist concentration in the working environment.

Description

Technical Field

[0001] This application relates to the field of shipbuilding and repair equipment technology, and in particular to an automatic painting fixture device for ships driven by a stepper motor. Background Technology

[0002] During shipbuilding and maintenance, components such as hull sections, deck machinery bases, cabin steel structures, and outfitting accessories all require anti-corrosion and anti-fouling coatings. The quality of these coatings directly affects the ship's service life and operational safety.

[0003] Currently, a large number of operations in the industry still use manual hand-held spray guns. Operators need to work in semi-open workshops or open-air areas. Due to factors such as the operator's skill level, physical exertion, and working posture, the paint film thickness varies greatly.

[0004] Meanwhile, during manual spraying, paint mist is released in a disorganized manner, and operators are exposed to a high concentration of volatile organic solvents for a long time, resulting in a high occupational health risk.

[0005] In other words, existing technologies have the following technical problems: ordinary shipbuilding painting methods are prone to air film thickness deviations and paint mist dispersion due to improper manual operation. Therefore, to address the above problems, an automatic painting fixture device for ships driven by a stepper motor is proposed. Utility Model Content

[0006] This application provides an automatic painting fixture device for ships driven by a stepper motor to solve the problems of air film thickness deviation and paint mist dispersion caused by improper manual operation in the ordinary ship construction painting method in the prior art.

[0007] According to one aspect of this application, a marine automatic painting fixture driven by a stepper motor is provided, comprising: A shielding cover is provided with an upper fixing plate fixedly installed on the upper surface of the shielding cover; An automatic moving component is fixedly connected to the upper surface of the upper fixed plate. A movable linear slide is provided on the automatic moving component. A guide slider is fixedly connected to one side of the linear slide, and a paint spray nozzle is fixed on the guide slider. A filter assembly is also provided on the side of the shielding cover; A paint mist interception component that can move synchronously is provided on the side of the paint spray nozzle.

[0008] Furthermore, the automatic movement component includes a fixed guide rod, a fixed bracket, a drive screw, and a linear slide; The mounting brackets of the automatic moving component are fixed to the upper surface of the upper mounting plate; The two ends of the fixed guide rod are fixedly connected to two fixed feet respectively. The drive screw is set parallel to the fixed guide rod, with one end coaxially connected to the output shaft of the stepper motor and the other end rotatably connected to the fixed foot away from the stepper motor.

[0009] Furthermore, the linear slide block simultaneously engages with the drive screw via a thread and with the fixed guide rod via a sliding engagement.

[0010] Furthermore, the guide slider is fixedly connected to the linear slide, and the paint nozzle is fixed on the guide slider.

[0011] Furthermore, the filtration assembly includes a filter, a suction pipe, and a fan; The exhaust fan of the filter assembly is fixed on the outer wall of the shielding housing. One end of the suction pipe is connected to the air inlet of the exhaust fan, and the other end extends into the interior of the shielding housing.

[0012] Furthermore, the paint mist interception assembly includes: a connecting frame, a fixed plate frame, a rotating roller, an interception belt, and an arc-shaped scraper; The top of the connecting bracket of the paint mist interception component is fixedly connected to the side wall of the guide slider.

[0013] Furthermore, the fixed plate frame is fixedly connected to one end of the connecting frame, and two rotating rollers are respectively rotatably installed at both ends of the fixed plate frame, with the intercepting belt tensioned and sleeved on the outside of the two rotating rollers.

[0014] Furthermore, a linkage gear is coaxially fixed at the end of the rotating roller, and a fixed long plate is provided at the shielding cover. A linkage rack is fixedly connected to the side wall of the fixed plate and meshes with the linkage gear.

[0015] Furthermore, the arc-shaped scraper is fixed to the bottom of the fixed plate frame, and its cutting edge is in contact with the outer surface of the intercepting strip.

[0016] Furthermore, the paint mist interception assembly also includes a bottom collection trough, which is fixed to the bottom of the mounting plate and located directly below the curved scraper.

[0017] To address the problems of insufficient spray path control precision, unorganized paint mist dispersion, and high frequency of paint accumulation cleaning on static shielding structures in existing technologies, this application designs a linkage structure between an automatic moving component, a spray nozzle, and a paint mist interception component. A stepper motor drives a linear slide to move the spray nozzle back and forth along a set stroke, ensuring consistent paint film thickness. Simultaneously, the paint mist interception component reduces lateral paint mist diffusion, controlling the paint mist concentration in the working environment. Furthermore, the cyclic rotation of the interception belt, combined with an arc-shaped scraper, removes and collects adhering paint, reducing manual cleaning workload. This design is particularly suitable for on-site spraying operations on medium to large-sized workpieces such as ship section components and deck accessories. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application; Figure 2 This is a side perspective view of one embodiment of the present application; Figure 3 This is a schematic diagram of the side planar structure of one embodiment of this application; Figure 4 This is a schematic diagram of the connection structure of a paint mist interception component according to an embodiment of this application; Figure 5 This is a side view of a paint mist interception component according to an embodiment of this application; Figure 6 This is a schematic diagram of the connection structure of a linkage gear according to an embodiment of this application.

[0020] In the picture: 1. Shielding enclosure; 2. Upper fixing plate; 201. Guide groove; 3. Automatic moving component; 301. Fixed guide rod; 302. Fixed bracket; 303. Drive screw; 304. Linear slide; 305. Stepper motor; 306. Guide slider; 4. Spray nozzle; 401. Connecting hose; 5. Filter assembly; 501. Filter; 502. Suction pipe; 503. Exhaust fan; 6. Paint mist interception assembly; 601. Connecting frame; 602. Fixing plate frame; 603. Rotating roller; 604. Interception belt; 605. Arc-shaped scraper; 606. Bottom collection trough; 607. Linkage gear; 608. Fixing long plate; 609. Linkage rack. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] Please see Figure 1 and Figure 2 As shown in a specific embodiment of this application, a marine automatic painting fixture driven by a stepper motor is disclosed, which specifically includes: A shielding cover 1 is provided, and an upper fixing plate 2 is fixedly installed on the upper surface of the shielding cover 1. An automatic moving component 3 is fixedly connected to the upper surface of the upper fixing plate 2. A movable linear slide 304 is provided on the automatic moving component 3. A guide slider 306 is fixedly connected to one side of the linear slide 304. A paint spray nozzle 4 is fixed on the guide slider 306 for moving along a preset path with the linear slide 304 and completing the painting operation. A filter assembly 5 is also provided on the side of the shielding cover 1 to filter and discharge the paint mist generated during the operation.

[0023] A paint mist interception component 6 that can move synchronously is provided on the side of the paint nozzle 4 to intercept and collect the paint mist that diffuses laterally from the paint nozzle 4.

[0024] This application designs a linkage structure of automatic moving component 3, spray nozzle 4 and paint mist interception component 6. The stepper motor 305 drives the linear slide 304 to move the spray nozzle 4 back and forth according to the set stroke, thereby ensuring the consistency of paint film thickness. At the same time, the paint mist interception component 6 reduces the lateral spread of paint mist, thereby controlling the paint mist concentration in the working environment. Meanwhile, the cyclic rotation of the interception belt 604, together with the arc scraper 605, scrapes off and collects the attached paint, reducing the workload of manual cleaning. It is particularly suitable for on-site spraying operations of medium and large-sized workpieces such as ship section components and deck accessories.

[0025] In a preferred embodiment of this application, see [reference] Figures 1 to 3 The specific connection relationships and operating methods of each component are as follows: The shielding cover 1 is a frame-type semi-enclosed structure. The top opening is fixedly connected to the upper fixed plate 2 by bolts. The upper surface of the upper fixed plate 2 is provided with a guide groove 201 along the length direction. The guide groove 201 penetrates the thickness direction of the upper fixed plate 2, so that the movement path of the linear slide 304 is connected to the internal space of the shielding cover 1.

[0026] The automatic moving component 3 includes a fixed guide rod 301, a fixed bracket 302, a drive screw 303, and a linear slide 304; The fixed legs 302 of the automatic moving component 3 are fixed to the upper surface of the upper fixed plate 2 by bolts, and the two fixed legs 302 are located at both ends of the upper fixed plate 2 in the length direction.

[0027] The two ends of the fixed guide rod 301 are fixedly connected to the two fixed feet 302 respectively. The drive screw 303 is set parallel to the fixed guide rod 301. One end of the drive screw is coaxially connected to the output shaft of the stepper motor 305 through a coupling, and the other end is rotatably connected to the fixed feet 302 away from the stepper motor 305 through a bearing.

[0028] The linear slide block 304 is threadedly engaged with the drive screw 303 and slidably engaged with the fixed guide rod 301.

[0029] The guide slider 306 and the linear slide 304 are fixedly connected to the side facing the inside of the shielding housing 1 by bolts. The paint nozzle 4 is fixed to the guide slider 306 by clamps. One end of the connecting hose 401 is connected to the inlet of the paint nozzle 4, and the other end is connected to the paint supply pipeline. The paint supply pipeline is equipped with a solenoid valve, which is controlled by an external controller.

[0030] In one specific embodiment of this application, see [reference]. Figure 3 and Figure 4 As shown, the filter assembly 5 includes a filter 501, a suction pipe 502, and a fan 503.

[0031] The exhaust fan 503 of the filter assembly 5 is fixed to the outer wall of the shielding housing 1 by a bracket. One end of the suction pipe 502 is connected to the air inlet of the exhaust fan 503, and the other end extends into the interior of the shielding housing 1. The filter 501 is connected in series in the pipe of the suction pipe 502 to adsorb paint mist particles. The filtered gas is discharged through the air outlet of the exhaust fan 503.

[0032] In a preferred embodiment of this application, see [reference] Figure 4 , Figure 5 and Figure 6 As shown, the paint mist interception assembly 6 includes: a connecting frame 601, a rotating roller 603, an interception belt 604, and an arc-shaped scraper 605.

[0033] The top of the connecting frame 601 of the paint mist interception component 6 is fixedly connected to the side wall of the guide slider 306 by bolts, so that the paint mist interception component 6 moves synchronously with the linear slide 304.

[0034] The fixed plate frame 602 is fixedly connected to one end of the connecting frame 601, and the two rotating rollers 603 are respectively rotatably mounted at both ends of the fixed plate frame 602 via bearings. The intercepting belt 604 is tensioned and sleeved on the outside of the two rotating rollers 603.

[0035] Preferably, the intercepting strip 604 is made of polyurethane material resistant to organic solvents and is located on both sides of the paint nozzle 4 along the moving direction of the linear slide 304. The lower edge of the intercepting strip 604 is lower than the spray nozzle height of the paint nozzle 4 to avoid obstructing the spraying path.

[0036] One of the rotating rollers 603 has a linkage gear 607 coaxially fixed at its end, and a fixed long plate 608 is provided at the shielding cover 1. The fixed long plate 608 is fixed to the inner surface of the shielding cover 1 along the length direction of the shielding cover 1.

[0037] A linkage rack 609 is fixedly connected to the side wall of the fixed long plate 608 and meshes with the linkage gear 607.

[0038] With the above technical solution, when the linear slide 304 moves along the drive screw 303, the linkage gear 607 rolls along the linkage rack 609, driving the rotating roller 603 to rotate, thereby causing the intercepting belt 604 to rotate cyclically.

[0039] Meanwhile, the arc-shaped scraper 605 is fixed to the bottom of the fixed plate frame 602 by a bracket, and its cutting edge is in contact with the outer surface of the intercepting strip 604.

[0040] The bottom collection trough 606 is fixed to the bottom of the fixed plate frame 602 and located directly below the arc-shaped scraper 605, and is used to collect the scraped paint.

[0041] During operation, the external controller sends a start signal, and the stepper motor 305 operates at a preset speed and stroke, driving the linear slide 304 to move along the drive screw 303. The guide slider 306 drives the spray nozzle 4 through the guide groove 201 into the shielding cover 1. At the same time, the controller opens the solenoid valve on the paint supply pipeline, and the spray nozzle 4 begins to spray paint onto the surface of the workpiece.

[0042] Synchronously, the linear slide 304 moves, causing the connecting frame 601 and the fixed plate frame 602 to move synchronously. The linkage gear 607 rolls along the linkage rack 609, driving the rotating roller 603 to rotate. The intercepting belt 604 rotates in a cycle to intercept the paint mist diffused laterally from the paint nozzle 4. When the paint adhering to the surface of the intercepting belt 604 rotates to the arc-shaped scraper 605, it is scraped off by the scraper into the bottom collection tank 606.

[0043] Simultaneously, the exhaust fan 503 starts, drawing in the residual paint mist inside the shielding housing 1 through the suction pipe 502, filtering it through the filter 501, and then discharging it. When the linear slide 304 moves to the limit positions at both ends of the drive screw 303, it triggers the limit switch set by the external controller, causing the stepper motor 305 to reverse, driving each component to move in the opposite direction, completing one working cycle.

[0044] It should be noted that in this embodiment, the ratio of the linear velocity of the intercepting strip 604 to the moving speed of the linear slide 304 can be adjusted according to the drying rate of the sprayed paint, and is usually set to 1.5~3:1, so as to ensure that the paint on the surface of the intercepting strip 604 is scraped off before curing.

[0045] Meanwhile, the bottom collection tank 606 of this application needs to be cleaned regularly, with the cleaning cycle determined based on the frequency of spraying operations and paint consumption. All electrical components in this device are explosion-proof, making it suitable for the operating environment requirements of shipbuilding and repair workshops.

[0046] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A marine automatic painting fixture driven by a stepper motor, characterized in that: include: A shielding cover (1) is provided with an upper fixing plate (2) fixedly disposed on the upper surface of the shielding cover (1). An automatic moving component (3) is fixedly connected to the upper surface of the upper fixed plate (2). A movable linear slide (304) is provided on the automatic moving component (3). A guide slider (306) is fixedly connected to one side of the linear slide (304). A paint spray nozzle (4) is fixed on the guide slider (306). A filter assembly (5) is also provided on the side of the shielding cover (1); A paint mist interception component (6) that can move synchronously is provided on the side of the paint nozzle (4).

2. The marine automatic painting fixture driven by a stepper motor according to claim 1, characterized in that: The automatic moving component (3) includes a fixed guide rod (301), a fixed bracket (302), a drive screw (303), and a linear slide (304). The fixed legs (302) of the automatic moving component (3) are fixed to the upper surface of the upper fixed plate (2); The two ends of the fixed guide rod (301) are respectively fixedly connected to two fixed feet (302). The drive screw (303) is set parallel to the fixed guide rod (301), one end of which is coaxially connected to the output shaft of the stepper motor (305), and the other end is rotatably connected to the fixed foot (302) away from the stepper motor (305).

3. The marine automatic painting fixture driven by a stepper motor according to claim 1, characterized in that: The linear slide (304) is threadedly engaged with the drive screw (303) and slidably engaged with the fixed guide rod (301).

4. The marine automatic painting fixture driven by a stepper motor according to claim 3, characterized in that: The guide slider (306) is fixedly connected to the linear slide (304), and the paint nozzle (4) is fixed on the guide slider (306).

5. The marine automatic painting fixture driven by a stepper motor according to claim 1, characterized in that: The filtration assembly (5) includes a filter (501), a suction pipe (502), and a fan (503); The exhaust fan (503) of the filter assembly (5) is fixed on the outer wall of the shielding shell (1). One end of the suction pipe (502) is connected to the air inlet of the exhaust fan (503), and the other end extends into the interior of the shielding shell (1).

6. The marine automatic painting fixture driven by a stepper motor according to claim 1, characterized in that: The paint mist interception assembly (6) includes: a connecting frame (601), a fixed plate frame (602), a rotating roller (603), an interception belt (604), and an arc-shaped scraper (605). The top of the connecting frame (601) of the paint mist interception component (6) is fixedly connected to the side wall of the guide slider (306).

7. The marine automatic painting fixture driven by a stepper motor according to claim 6, characterized in that: The fixed plate frame (602) is fixedly connected to one end of the connecting frame (601), and the two rotating rollers (603) are respectively rotatably installed at both ends of the fixed plate frame (602). The intercepting belt (604) is tensioned and sleeved on the outside of the two rotating rollers (603).

8. The marine automatic painting fixture driven by a stepper motor according to claim 7, characterized in that: The end of the rotating roller (603) is coaxially fixed with a linkage gear (607), and a fixed long plate (608) is provided at the shielding cover (1). A linkage rack (609) is fixedly connected to the side wall of the fixed long plate (608) and meshes with the linkage gear (607).

9. The marine automatic painting fixture driven by a stepper motor according to claim 8, characterized in that: The arc-shaped scraper (605) is fixed to the bottom of the fixed plate frame (602), and its cutting edge is in contact with the outer surface of the intercepting strip (604).

10. The marine automatic painting fixture driven by a stepper motor according to claim 9, characterized in that: The paint mist interception component (6) also includes a bottom collection groove (606), which is fixed to the bottom of the fixed plate frame (602) and located directly below the arc-shaped scraper (605).

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