A bottom surface telescopic spraying device with replaceable spray head

Abstract

This utility model discloses a bottom-mounted telescopic spraying device for easy nozzle replacement, including a device base, a paint tank, a partition protective frame, a control box, and a push frame. The paint tank is located on the upper part of the device base, and a vertical support frame is set at the center of the top of the paint tank. The top of the vertical support frame is movably connected to a connecting seat through a connecting part. An electric telescopic rod is set at the front end of the connecting seat, and the front end of the electric telescopic rod is connected to a nozzle mounting seat. The upper part of the nozzle mounting seat is detachably connected to a nozzle through a threaded post. A spraying pipe is set below the electric telescopic rod. The paint tank delivers the paint inside to the spraying pipe and nozzle through a delivery pump. The lower part of the connecting seat is connected to the shaft of a rotating motor. The partition protective frame is set between the paint tank and the control box, and a power module is set on the lower side of the partition protective frame away from the paint tank.

Description

Technical Field

[0001] This utility model relates to the field of spraying robot technology, specifically to a bottom telescopic spraying device that facilitates nozzle replacement. It is suitable for scenarios such as bottom coating of industrial products, fireproof spraying of building components, and anti-corrosion treatment of automobile chassis, and is especially suitable for automated spraying operations that require frequent nozzle replacement and flexible adjustment of spraying position. Background Technology

[0002] In the field of industrial automated spraying, bottom surface spraying operations have long suffered from efficiency bottlenecks due to limited operating space and easy wear and tear of spray nozzles. Traditional bottom surface spraying devices for spraying robots have the following defects:

[0003] Low nozzle replacement efficiency: Existing devices mostly use bolt fixing or complex snap-fit ​​structures. Replacing the nozzle requires the use of tools to remove multiple fasteners, and each replacement takes a long time, which in turn leads to frequent production line downtime.

[0004] Poor stability of telescopic structure: Although some devices have telescopic functions, the rigidity of multi-stage telescopic rods is insufficient, which can easily cause shaking during operation, resulting in uneven coating thickness.

[0005] Unintelligent paint management: Paint tanks lack liquid level monitoring functions, which can easily lead to paint shortages and machine shutdowns or overfilling; spare nozzles are stored in a disorderly manner, and it takes a long time to find a suitable nozzle.

[0006] Insufficient mobility: Some devices use fixed bases, requiring manual handling and adjustment of their position; or although equipped with wheels, they lack self-locking mechanisms, making them prone to slipping during operation.

[0007] To address the aforementioned problems, this utility model provides a bottom-surface telescopic spraying device that facilitates nozzle replacement. Utility Model Content

[0008] The purpose of this utility model is to provide a bottom-surface telescopic spraying device that facilitates nozzle replacement, thereby solving the problems of inconvenient nozzle replacement, poor telescopic flexibility, difficult paint management, and imperfect electrical system protection and control in existing bottom-surface spraying devices, and thus improving the efficiency and quality of spraying operations.

[0009] To achieve the above objectives, the present invention employs the following technical means:

[0010] A bottom-mounted telescopic spraying device for easy nozzle replacement includes a device base, a paint tank, a partition protective frame, a control box, and a push frame. The paint tank is located on the upper part of the device base, and a vertical support frame is set at the center of the top of the paint tank. The top of the vertical support frame is movably connected to a connecting seat through a connecting part. An electric telescopic rod is set at the front end of the connecting seat, and the front end of the electric telescopic rod is connected to a nozzle mounting seat. The upper part of the nozzle mounting seat is detachably connected to a nozzle through a threaded post. A spraying pipe is set below the electric telescopic rod. The paint tank delivers the paint inside to the spraying pipe and nozzle through a delivery pump. The lower part of the connecting seat is connected to the shaft of a rotating motor.

[0011] The partition protective frame is installed between the paint tank and the control box, and the power module is installed on the lower side of the partition protective frame away from the paint tank.

[0012] Preferably, explosion-proof tempered glass is installed in the middle of the partition protective frame.

[0013] Preferably, the rotating motor is fixed to the side of the vertical support frame via a bearing plate located below it, and the rotating motor drives the connecting seat and the electric telescopic rod to rotate horizontally around the vertical support frame via a rotating shaft.

[0014] Preferably, the connector is rotatably inserted into the middle of the connector.

[0015] Preferably, a nozzle storage rack is provided on one side of the paint tank, and the nozzle storage rack is provided with multiple sets of nozzle placement slots of different sizes and specifications.

[0016] Preferably, a paint filling port is provided on one side of the paint tank, and a liquid level sensor for detecting the paint volume is provided on one side of the top of the paint tank.

[0017] Preferably, the spraying is fixed to the bottom of the electric telescopic rod by several connecting rings, the end of the spraying pipe passes through the bottom of the nozzle mounting seat and communicates with the hollow threaded column, the electric telescopic rod includes four telescopic arms, and the connecting ring is located below the primary telescopic arm near the end of the electric telescopic rod.

[0018] Preferably, the power module includes a removable battery and a charging mechanism. The power module is electrically connected to the rotating motor, the delivery pump, the liquid level sensor, and the control box. The control box is mounted on the device base via a support rod. The control box includes an internal PLC controller, a box door, and a control display panel. The control display panel controls and adjusts the working status of the rotating motor and the delivery pump through the PLC controller, and displays the paint tank capacity status provided by the liquid level sensor.

[0019] Preferably, a pusher is provided on the upper part of the pusher frame.

[0020] Preferably, the upper surface of the device base is covered with a protective paint layer, and the bottom of the device base is provided with a set of movable wheels, which are equipped with positioning locks.

[0021] Compared with the prior art, the bottom telescopic spraying device of this utility model, which facilitates nozzle replacement, has the following advantages:

[0022] Quick nozzle replacement: The threaded post connection structure allows for manual installation and removal of nozzles, reducing replacement time to within 1 minute. Combined with the nozzle storage rack, it enables quick access to various nozzle sizes.

[0023] Multi-dimensional spraying coverage: The four-level electric telescopic rod extends and adjusts its stroke according to usage requirements. The rotating motor drives the electric telescopic rod to rotate horizontally, covering a larger and wider spraying area, which is suitable for spraying the bottom surface of large workpieces.

[0024] Safety protection upgrade: The partition frame and explosion-proof tempered glass isolate the paint box and electrical components to prevent paint leakage from causing malfunctions; the paint protective layer prevents the base from being corroded by the paint;

[0025] Intelligent management: The liquid level sensor provides real-time feedback on the remaining paint level, and the control display panel automatically alarms when paint is low; the PLC controller stores multiple sets of spraying parameters and supports one-click switching between different processes;

[0026] Flexible movement and positioning: The mobile wheel set with positioning lock allows a single person to push the equipment and lock it precisely, making it suitable for multi-station switching operations with high positioning accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the bottom telescopic spraying device of this utility model, which facilitates nozzle replacement.

[0028] Figure 2 This is an exploded view of the bottom telescopic spraying device of this utility model that facilitates nozzle replacement;

[0029] Figure 3 This is a schematic diagram of the control box structure of the bottom telescopic spraying device for easy nozzle replacement according to this utility model;

[0030] The attached figures are labeled as follows:

[0031] 1. Device base; 2. Paint protective layer; 3. Moving wheel set; 4. Pushing frame; 5. Push handle; 6. Support rod; 7. Control box; 7. PLC controller; 701. Box door; 702. Control display panel; 703. Partition protection frame; 8. Explosion-proof tempered glass; 9. Vertical support frame; 10. Connecting part; 11. Electric telescopic rod; 12. Spray head; 13. Spray head mounting seat; 14. Threaded column; 1401. Spraying pipe; 15. Rotary motor; 16. Paint tank; 17. Transfer pump; 18. Connecting seat; 19. Connecting ring; 20. Bearing plate; 21. Paint filling port; 22. Spray head storage rack; 23. Spray head placement slot; 24. Liquid level sensor; 25. Positioning lock; 26. Power module; 27. Charging mechanism; 28. Storage battery; 29. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figure 1-3 As shown:

[0036] A bottom-mounted telescopic spraying device for easy nozzle replacement includes a device base 1, a paint tank 17, a partition protective frame 8, a control box 7, and a push frame 4. The paint tank 17 is located on the upper part of the device base 1. A vertical support frame 10 is provided at the center of the top of the paint tank 17. The top of the vertical support frame 10 is movably connected to a connecting seat 19 through a connecting part 11. An electric telescopic rod 12 is provided at the front end of the connecting seat 19. The front end of the electric telescopic rod 12 is connected to a nozzle mounting seat 14. A nozzle 13 is detachably connected to the upper part of the nozzle mounting seat 14 through a threaded post 1401. A spraying pipe 15 is provided below the electric telescopic rod 12. The paint tank 17 delivers the paint inside to the spraying pipe 15 and the nozzle 13 through a delivery pump 18. The lower part of the connecting seat 19 is connected to the rotating shaft of a rotating motor 16.

[0037] Among them, the threaded column 1401 enables the nozzle 13 to be disassembled by hand by twisting and turning without the aid of tools, and the replacement time is reduced from 10 minutes of traditional bolt connection to within 30 seconds; the rotating motor 16 drives the connecting seat 19 to rotate horizontally in a fan-shaped area, covering complex bottom structures, such as stepped or arc-shaped workpieces.

[0038] The partition protective frame 8 is located between the paint tank 17 and the control box 7. A power module 27 is located on the side of the partition protective frame 8 away from the paint tank 17. The control panel 15 has a built-in PLC controller that stores the spraying parameters of different workpieces, such as pressure, flow rate and angle, which can be called up with one click without manual adjustment.

[0039] The explosion-proof tempered glass 9 is installed in the middle of the partition protective frame 8. The explosion-proof tempered glass 9 in the middle of the partition protective frame 8 physically isolates the paint tank 3 from the control box 7 to prevent paint leakage from causing short circuits or explosions. The glass has a light transmittance of ≥90%, which makes it easy for operators to observe the liquid level in the paint tank and the operating status of the equipment.

[0040] The rotating motor 16 is fixed to the side of the vertical support frame 10 via a bearing plate 21 located below it. The rotating motor 16 drives the connecting seat 19 and the electric telescopic rod 12 to rotate horizontally around the vertical support frame 10 via a rotating shaft. The connecting seat 19 is rotatably inserted into the middle of the connecting part 11.

[0041] The rotating motor 16 is rigidly fixed to the vertical support frame 10 by the bearing plate 21, which reduces the vibration of the cantilever structure and achieves a rotation accuracy of ±0.1°. The plug-in structure of the connecting seat 19 and the connecting part 11 adopts bearing positioning to ensure the stable rotation of the electric telescopic rod 12.

[0042] A nozzle storage rack 23 is provided on one side of the paint tank 17. The nozzle storage rack 23 is provided with multiple sets of nozzle placement slots 24 of different sizes and specifications. The six sets of nozzle placement slots 24 of the nozzle storage rack 23 are divided into sections according to specifications, such as fan-shaped, cone-shaped, and wide-angle. The surface is laser-etched with model markings, which can be quickly identified with color coding. A magnetic fixing device is provided at the bottom of the placement slot 24 to prevent the nozzles from shaking and colliding.

[0043] The paint tank 17 is provided with a paint filling port 22 on one side and a liquid level sensor 25 for detecting paint volume on one side of the top of the paint tank 17. The liquid level sensor 25 monitors the paint level in real time with an accuracy of ±50ml. When the liquid level is low, the PLC controller triggers an audible and visual alarm and automatically stops spraying. The paint filling port 22 has a built-in 100-mesh stainless steel filter to prevent particulate impurities from entering the pipeline.

[0044] The spray pipe 15 is fixed to the bottom of the electric telescopic rod 12 by several connecting rings 20. The end of the spray pipe 15 passes through the bottom of the nozzle mounting seat 14 and is connected to the hollow threaded post 1401. The electric telescopic rod 12 includes four telescopic arms. The connecting rings 20 are located below the primary telescopic arm near the end of the electric telescopic rod 12. The connecting rings 20 are made of elastic rubber to buffer the vibration of the electric telescopic rod 12 during extension and retraction and prevent the spray pipe 15 from fatigue fracture. The threaded post 1401 is equipped with a PTFE sealing ring to ensure that there is no paint leakage.

[0045] The power module 27 includes a removable battery 29 and a charging mechanism 28. The power module is electrically connected to the rotating motor 7, the delivery pump 18, the liquid level sensor 25, and the control box 7. The control box 7 is mounted on the device base 1 via a support rod 6. The control box 7 includes an internal PLC controller 701, a box door 702, and a control display panel 703. The control display panel 703 controls and adjusts the working status of the rotating motor 16 and the delivery pump 18 through the PLC controller 71, and displays the capacity status of the paint tank 17 provided by the liquid level sensor. The removable battery 29 has a capacity of 48V / 100Ah and can operate continuously for 8 hours on a single charge. It supports quick battery pack replacement for uninterrupted operation. The PLC controller 701 automatically adjusts the power ratio of the rotating motor 16 and the delivery pump 18, which helps to reduce energy consumption.

[0046] The upper part of the pusher frame 4 is provided with a pusher part 5; the upper surface of the device base 1 is covered with a paint protective layer 2; the bottom of the device base 1 is provided with a set of moving wheels 3; the set of moving wheels 3 is equipped with a positioning lock 26; the set of moving wheels 3 uses PU coated universal wheels; the positioning lock 26 uses a disc brake structure for locking, which has high stability.

[0047] Explanation of working principle

[0048] This device is based on a modular design concept and achieves efficient bottom surface spraying through mechanical structure and electrical control. The workflow is as follows:

[0049] Positioning and Extension Phase:

[0050] The operator inputs workpiece size parameters, such as length, width, and height, through the control panel 15. The PLC controller 701 calls the preset program to calculate the optimal extension length and angle of the horizontal electric telescopic rod 12. The rotating motor 16 drives the connecting seat 19 to rotate horizontally around the vertical support frame 10. At the same time, the electric telescopic rod 12 extends step by step according to the required four-stage telescopic arm, so that the spray head 13 accurately reaches the position to be sprayed.

[0051] Paint delivery and spraying stage:

[0052] The delivery pump 18 starts, delivering paint from the paint tank 3 through the spray pipe 15 to the spray head 13.

[0053] Nozzle replacement mechanism:

[0054] When the nozzle needs to be replaced, the operator rotates the nozzle 13 counterclockwise to separate it from the threaded post 1401, and the old nozzle can be quickly removed.

[0055] Select a suitable nozzle 13 from the nozzle storage rack 23, align it with the threaded post 1401 and tighten it clockwise. The sealing ring built into the connector 18 will automatically form a seal.

[0056] Intelligent monitoring and feedback:

[0057] The liquid level sensor 25 monitors the liquid level in the paint tank 3 in real time. If the level is lower than the set value, such as 10%, an audible and visual alarm will be triggered.

[0058] Example 1: Automated spraying of anti-corrosion coating for chassis armor on automobile production lines

[0059] step:

[0060] The device is pushed under the car chassis by the movable wheel set 3, and the positioning lock 26 is locked; the nozzle is selected according to the vehicle model and installed on the nozzle mounting seat 14; chassis armor paint, such as PVC resin, is added to the paint tank 3, and the spray flow rate and rotation angle are set through the control panel 15; the delivery pump 18 is started, and the paint is delivered to the nozzle 13 through the spray pipe 15; the movable telescopic rod 12 extends to 1.8 meters and drives the nozzle 13 to move, and the rotating motor 16 adjusts the angle to adapt to the inclined surface of the chassis; the device moves at a uniform speed of 0.5m / s along the guide rail to complete the full coverage spraying of the chassis bottom surface, and the PLC controller 701 automatically controls the nozzle 13 to increase the spraying amount in complex areas such as wheel arches.

[0061] Nozzle replacement and maintenance:

[0062] After painting 10 vehicles, the system automatically switches to the backup nozzle; the old nozzles are recycled, cleaned with a special solvent, and then placed back in storage rack 23 for later use.

[0063] Example 2: Fire-retardant coating spraying on the bottom surface of steel components of large stadiums

[0064] step:

[0065] Move the device under the steel structure and lock the moving wheel assembly 3; select and install the conical nozzle 13, connect the paint tank 17, and inject a certain amount of fire-retardant ultra-thin fire-retardant paint into the paint tank 17; set the spraying flow rate to 350ml / min through the control panel 15; for the H-shaped steel structure, extend the electric telescopic rod 12 to 2.2 meters and drive the nozzle to extend and move; start the reciprocating spraying mode, and the nozzle 13 moves in a "Z" shaped path to ensure full coverage of the bottom surface and flange of the steel beam; the liquid level sensor 25 monitors the remaining paint and automatically prompts to replenish the paint. Each replenishment can spray 15 steel columns.

[0066] For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A bottom-surface telescopic spraying device for easy nozzle replacement, characterized in that, The device includes a base (1), a paint tank (17), a partition and protective frame (8), a control box (7), and a pusher frame (4). The paint tank (17) is located on the upper part of the base (1). A vertical support frame (10) is provided at the center of the top of the paint tank (17). The top of the vertical support frame (10) is movably connected to a connecting seat (19) through a connecting part (11). An electric telescopic rod (12) is provided at the front end of the connecting seat (19). The front end of the electric telescopic rod (12) is connected to a nozzle mounting seat (14). The nozzle mounting seat (14) is detachably connected to a nozzle (13) through a threaded column (1401) at the top. A spraying pipe (15) is provided below the electric telescopic rod (12). The paint tank (17) uses a delivery pump (18) to deliver the paint inside to the spraying pipe (15) and the nozzle (13). The lower part of the connecting seat (19) is connected to the shaft of a rotating motor (16). The partition protective frame (8) is located between the paint tank (17) and the control box (7), and a power module (27) is located below the side of the partition protective frame (8) away from the paint tank (17).

2. The bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, Explosion-proof tempered glass (9) is installed in the middle of the partition protective frame (8).

3. The bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The rotating motor (16) is fixed to the side of the vertical support frame (10) by a bearing plate (21) located below it. The rotating motor (16) drives the connecting seat (19) and the electric telescopic rod (12) to rotate horizontally around the vertical support frame (10) via a rotating shaft.

4. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 3, characterized in that, The connector (19) is rotatably inserted into the middle of the connector (11).

5. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The paint box (17) is provided with a nozzle storage rack (23) on one side, and the nozzle storage rack (23) is provided with multiple nozzle placement slots (24) of different sizes and specifications.

6. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The paint tank (17) is provided with a paint filling port (22) on one side, and a liquid level sensor (25) for detecting the paint volume is provided on one side of the top of the paint tank (17).

7. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The spray pipe (15) is fixed to the bottom of the electric telescopic rod (12) by several connecting rings (20). The end of the spray pipe (15) passes through the bottom of the nozzle mounting seat (14) and communicates with the hollow threaded column (1401). The electric telescopic rod (12) includes four telescopic arms. The connecting rings (20) are located below the primary telescopic arm near the end of the electric telescopic rod (12).

8. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The power module (27) includes a removable battery (29) and a charging mechanism (28). The power module is electrically connected to the rotating motor (16), the delivery pump (18), the liquid level sensor (25), and the control box (7). The control box (7) is mounted on the device base (1) via a support rod (6). The control box (7) includes an internal PLC controller (701), a box door (702), and a control display panel (703). The control display panel (703) controls and adjusts the working status of the rotating motor (16) and the delivery pump (18) via the PLC controller (71), and displays the capacity status of the paint tank (17) provided by the liquid level sensor.

9. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The upper part of the pusher frame (4) is provided with a pusher part (5).

10. A bottom-surface telescopic spraying device for easy nozzle replacement according to claim 1, characterized in that, The upper surface of the device base (1) is covered with a paint protective layer (2), and the bottom of the device base (1) is provided with a set of moving wheels (3), and the set of moving wheels (3) is equipped with a positioning lock (26).

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