A trowel head

Abstract

The present application provides a trowel head, comprising a fixed frame, a movable plate, a trowel plate, a reversing cylinder and a hinge, the movable plate and the reversing cylinder are arranged on the fixed frame, the reversing cylinder is above the movable plate, the trowel plate is arranged at the front end of the movable plate through the hinge, and forms an angle with the movable plate, the reversing cylinder is connected with the back of the trowel plate through a telescopic rod. The trowel head can freely adjust the angle and position of the trowel plate, after the rough positioning of the robot moving unit of the troweling machine, the angle, distance and other parameters between the trowel plate and the wall surface are precisely adjusted through the data feedback of the sensor. Thus, the requirement for the movement precision of the troweling robot moving unit in the troweling process is reduced, the positioning time is reduced, the work efficiency is improved, and the cost is reduced. In addition, the free adjustment of the trowel plate can improve the connection precision between multiple troweling surfaces, and the troweling wall surface has higher flatness.

Description

Technical Field

[0001] This invention relates to the technical field of plastering tool heads for building construction. Background Technology

[0002] In building construction, plastering is usually required after the brickwork is completed. Traditional plastering is done manually, and standard construction specifications depend entirely on the skill level of the construction workers, which results in high construction costs and very low construction efficiency.

[0003] With the advancement of technology, a large number of construction equipment have emerged on the market to assist manual plastering. However, whether it is a semi-automatic or fully automatic plastering robot, the angle and distance between the plastering head and the wall need to be adjusted by the robot body. This requires the robot body to have extremely high motion precision, which seriously affects construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the existing technology and provide a plastering head with multi-angle self-adjustment function, thereby reducing the requirements for the motion accuracy of the plastering robot's moving unit during the plastering process.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A plastering tool head includes a fixed frame, a movable plate, a plastering board, a tilting electric cylinder, and a hinge. The movable plate and the tilting electric cylinder are mounted on the fixed frame, with the tilting electric cylinder located above the movable plate. The plastering board is mounted at the front end of the movable plate via the hinge, forming an angle with the movable plate. The telescopic rod of the tilting electric cylinder is connected to the back of the plastering board.

[0007] Furthermore, the plastering tool head also includes an adjusting electric cylinder, a connecting rod, a telescopic plate, a slewing bearing, and a linear guide rail. The telescopic plate is arranged parallel to the lower part of the movable plate and is connected to the movable plate through the slewing bearing. The linear guide rail is arranged on the fixed frame and located on both sides of the telescopic plate, with the sides of the telescopic plate in sliding contact with the linear guide rail. The adjusting electric cylinder is arranged on the fixed frame and located below the movable plate. One end of the connecting rod is movably connected to the back of the plastering plate, and the other end is connected to the telescopic rod of the adjusting electric cylinder.

[0008] Furthermore, there are two adjusting electric cylinders, each located on the outside of the linear guide rail.

[0009] Furthermore, the plastering tool head also includes a nozzle assembly and a support member. The support member is located on the upper surface of the movable plate, and the nozzle assembly is located on the support member. The nozzle assembly includes a mortar nozzle, a conveyor, a frame, and a roller. The mortar nozzle is located on the moving chain of the conveyor. The conveyor and the roller are located on the frame. The conveyor's conveying direction is left-right of the plastering board, and the roller is located on one side of the conveyor. The frame is fixed to the support member.

[0010] Furthermore, the conveyor is a chain conveyor, which drives the mortar spray nozzles to move back and forth along both ends of the plastering board.

[0011] Furthermore, the support component is flexibly connected to the movable plate. During operation, a mortar delivery pipe is connected to the mortar nozzle, and the mortar is delivered to the nozzle by a mortar pump. Simultaneously, the pump drives the nozzle in a linear reciprocating motion, ensuring the mortar is evenly distributed into the angle between the plasterboard and the wall surface. In non-operating conditions or when the plasterboard is being scraped downwards, the mortar pump stops, and the nozzle moves away from above the plasterboard.

[0012] Furthermore, the conveyor includes a drive motor, a sprocket shaft, a guide rail, and a chain. The chain is sleeved on the guide rail and the sprocket shaft. The sprocket shaft is connected to the drive shaft of the drive motor, and the drive motor drives the chain to reciprocate along the guide rail.

[0013] Furthermore, the plastering tool head is also equipped with a quick-connect flange on the fixing frame.

[0014] The beneficial effects of this invention are:

[0015] The plastering tool head provided by this invention can freely adjust the plastering board at multiple angles and positions. After coarse positioning by the plastering machine robot's moving unit, precise adjustments to parameters such as angle and distance between the tool and the wall are achieved through sensor data feedback. This reduces the requirements for the motion accuracy of the plastering robot's moving unit during the plastering process, reduces positioning time, improves work efficiency, and also reduces costs.

[0016] In addition, the ability to freely adjust the plastering board can improve the connection accuracy between multiple plastering surfaces, resulting in a smoother finished wall surface.

[0017] The following describes specific embodiments of the present invention with reference to the accompanying drawings: Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the plastering tool head from the rear side view according to an embodiment of the present invention.

[0019] Figure 2This is a front-view side view of the plastering tool head with the plastering board and spray nozzle assembly removed, provided in an embodiment of the present invention.

[0020] Figure 3 This is a bottom-view side view of the plastering tool head with the plastering board and spray nozzle assembly removed, provided in an embodiment of the present invention.

[0021] Figure 4 This is a simplified diagram of the extension and rotation motion of the plastering tool head provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the nozzle assembly structure of the plastering tool head provided in an embodiment of the present invention.

[0023] Figure 6 A simplified diagram illustrating the flipping motion of the plastering tool head provided in an embodiment of the present invention.

[0024] Figure 7 A side view of the plastering tool head in the upward state provided in an embodiment of the present invention.

[0025] Figure 8 A side view of the plastering tool head in its downward state provided in an embodiment of the present invention. Detailed Implementation

[0026] The specific embodiments described herein are merely illustrative of the technical solutions of this patent and are not intended to limit the scope of the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the technical solutions of this disclosure, and not the entire structure.

[0027] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structure of the device components and / or modules mentioned in the embodiments, unless otherwise described in detail, is something that can be understood by those skilled in the art based on existing public technologies or is a commercially available product.

[0028] like Figure 1 , Figure 2 As shown, the plastering tool head provided in this embodiment includes a fixed frame 1, a movable plate 2, a plastering board 3, a flipping electric cylinder 4, and a hinge 5. The movable plate 2 and the flipping electric cylinder 4 are mounted on the fixed frame 1, with the flipping electric cylinder 4 located above the movable plate 2. The plastering board 3 is mounted on the front end of the movable plate 2 via the hinge 5, forming an angle with the movable plate 2. The telescopic rod of the flipping electric cylinder 4 is connected to the back of the plastering board 3 to adjust the angle between the plastering board 3 and the wall surface.

[0029] like Figure 3As shown, the preferred embodiment of the plastering tool head is configured with an adjusting electric cylinder 6, a connecting rod 7, a telescopic plate 8, a slewing bearing 9, and a linear guide rail 10. The telescopic plate 8 is arranged parallel to the lower part of the movable plate 2 and is connected to the movable plate 2 through the slewing bearing 9. The linear guide rail 10 is mounted on the fixed frame 1 and located on both sides of the telescopic plate 8, with the sides of the telescopic plate 8 in sliding contact with the linear guide rail 10. The adjusting electric cylinder 6 is mounted on the fixed frame 1 and located below the movable plate 2. One end of the connecting rod 7 is movably connected to the back of the plastering plate 3, and the other end is connected to the telescopic rod of the adjusting electric cylinder 6.

[0030] Also refer to Figure 4 and Figure 6 The simplified kinematic diagram shows that the telescopic plate 8 can move linearly relative to the linear guide rail 10. The movable plate 2 is connected to the telescopic plate 8 via a slewing bearing 9, allowing the movable plate 2 to rotate horizontally within a certain range. Two adjusting electric cylinders 6 are provided, each located on the outside of the linear guide rail 10. When the distance between the plaster board 3 and the wall needs to be adjusted, the two adjusting electric cylinders 6 move synchronously, resulting in a resultant force in the same direction, which drives the telescopic plate 8 to move back and forth. At this time, the movable plate 2 and the telescopic plate 8 are in a relatively stationary state, thereby adjusting the distance between the plaster board and the wall. When the angle between the plaster board and the wall needs to be adjusted, the two adjusting electric cylinders 6 move in opposite directions, driving the movable plate 2 to rotate horizontally via the movable connecting rod 7. At this time, the telescopic plate 8 is in a stationary state, thus completing the angle adjustment between the plaster board and the wall.

[0031] Further as Figure 5 As shown, the plastering tool head can also be equipped with a nozzle assembly 11 and a support member 12. The support member 12 is located on the upper surface of the movable plate 2, and the nozzle assembly 11 is located on the support member 12. The nozzle assembly 11 includes a mortar nozzle 1101, a conveyor 1102, a frame 1103, and a roller 1104. The mortar nozzle 1101 is located on the moving chain of the conveyor 1102. The conveyor 1102 and the roller 1104 are located on the frame 1103. The conveying direction of the conveyor 1102 is the left-right direction of the plastering board 3, and the roller 1104 is located on one side of the conveyor 1102. The frame 1103 is fixed to the support member 12.

[0032] A more preferred embodiment is that the support member 12 is flexibly connected to the movable plate 2. During operation, a mortar delivery pipe is connected to the mortar nozzle 1101, and the mortar is delivered to the nozzle by the mortar pump. Simultaneously, the conveyor 1102 drives the mortar nozzle 1101 in a linear reciprocating motion, ensuring that the mortar is evenly delivered to the angle between the plastering board 3 and the wall surface. As the nozzle moves vertically upwards along the wall, the mortar on the plastering board can be applied to the wall surface, and the applied pressure ensures the adhesion between the mortar and the wall. In non-working states or when the plastering board 3 is being scraped downwards, the mortar pump stops, and the mortar nozzle 1101 moves away from above the plastering board.

[0033] A further preferred embodiment is that the conveyor 1102 is a chain conveyor, which drives the mortar nozzles 1101 to reciprocate along both ends of the plastering board 3. Alternatively, the conveyor 1102 includes a drive motor 1102a, a sprocket shaft 1102b, a guide rail 1102c, and a chain 1102d. The chain is fitted onto the guide rail 1102c and the sprocket shaft 1102b. The sprocket shaft 1102b is connected to the drive shaft of the drive motor 1102a, and carries the chain 1102d in a reciprocating motion along the guide rail 1102c.

[0034] A further preferred option is to install a vibration motor on the back of the plastering board 3, which can greatly improve the fluidity of the mortar and make the mortar adhere to the wall surface as evenly as possible.

[0035] To facilitate quick installation and use of the robotic arm, the plastering tool head is equipped with a quick-connect flange on the fixing frame 1.

[0036] The plastering tool head provided in this patent embodiment has some technical parameters shown in the table below:

[0037]

[0038]

[0039] The multi-functional plastering tool head provided in this patent operates as follows:

[0040] Wall plastering is mainly divided into two parts: upward plastering and downward smoothing.

[0041] 1)Reference Figure 7 When plastering upwards, the electric cylinder for flipping the plastering board is in the retracted state. At this time, the angle between the plastering board and the horizontal plane is less than 90°, forming a V-angle with the wall surface. During the entire process of the plastering tool head moving vertically upwards along the wall, the mortar on the plastering board can be applied to the wall surface.

[0042] 2)Reference Figure 8When the plastering tool head is moving downwards, the electric cylinder for flipping the plastering board is extended, and at the same time, it pushes the plastering board forward to flip it out at an angle slightly greater than 90° with the horizontal plane. Then, the entire plastering tool head moves downwards along the wall to completely smooth the mortar surface.

[0043] The above are illustrative examples of preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A trowel head comprising a holder (1) and a trowel blade (3), characterized in that It also comprises a movable plate (2), a turnover electric cylinder (4), a hinge (5), an adjusting electric cylinder (6), a connecting rod (7), an extension plate (8), a rotary support (9) and a linear guide rail (10), the movable plate (2) and the turnover electric cylinder (4) are arranged on the fixed frame (1), the turnover electric cylinder (4) is above the movable plate (2); the plastering plate (3) is arranged at the front end of the movable plate (2) through the hinge (5) and forms an included angle with the movable plate (2); the extension rod of the turnover electric cylinder (4) is connected with the back of the plastering plate (3); The extension plate (8) is arranged in parallel below the movable plate (2) and is connected with the movable plate (2) through the rotary support (9); the linear guide rail (10) is arranged on the fixed frame (1) and is located on both sides of the extension plate (8), the two sides of the extension plate (8) are in sliding contact with the linear guide rail (10); the adjusting electric cylinder (6) is arranged on the fixed frame (1) and is below the movable plate (2); one end of the connecting rod (7) is movably connected with the back of the plastering plate (3) and the other end is connected with the extension rod of the adjusting electric cylinder (6).

2. A trowel head as claimed in claim 1, characterised in that: The adjusting electric cylinder (6) has two, which are arranged on the outer side of the linear guide rail (10).

3. A trowel head as claimed in claim 1, wherein: The back of the plastering plate (3) is provided with a vibration motor.

4. The trowel head of claim 1, wherein: The single construction width of the plastering plate (3) is 1-1100mm.

5. The trowel head of claim 1, wherein: The fixed frame (1) is provided with a quick flange.

6. A trowel head as claimed in any one of claims 1 to 5 wherein: It also comprises a nozzle assembly (11) and a support (12), the support (12) is arranged on the upper surface of the movable plate (2), the nozzle assembly (11) is arranged on the support (12); the nozzle assembly (11) comprises a mortar nozzle (1101), a conveyor (1102), a rack (1103) and a drag wheel (1104), the mortar nozzle (1101) is arranged on the moving chain of the conveyor (1102), the conveyor (1102) and the drag wheel (1104) are arranged on the rack (1103), the conveying direction of the conveyor (1102) is left and right of the plastering plate (3), the drag wheel (1104) is located on one side of the conveyor (1102); the rack (1103) is fixed on the support (12).

7. A trowel head as claimed in claim 6, wherein: The conveyor (1102) is a chain conveyor.

8. A trowel head as claimed in claim 6, wherein: The support (12) is flexibly connected with the movable plate (2).

9. A trowel head as claimed in claim 6, wherein: The conveyor (1102) comprises a driving motor (1102a), a chain wheel shaft (1102b), a guide rail (1102c) and a chain (1102d), the chain (1102d) is sleeved on the guide rail (1102c) and the chain wheel shaft (1102b), the chain wheel shaft (1102b) is connected with the driving shaft of the driving motor (1102a).

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