Putty scraping device and putty scraper

Abstract

This utility model provides a putty scraper device and a putty scraping machine. The putty scraper device includes: a connecting frame; a scraper connected to the front end of the connecting frame, the scraper being inclined in the front-rear direction of the putty scraper device, the scraper including a front edge and a rear edge that adhere to the wall surface; and a spray gun mounted on the connecting frame, the spray nozzle of the spray gun located on the side of the rear edge of the scraper away from the front edge. The technical solution of this utility model effectively solves the problem in the prior art where putty spraying and scraping are performed in two separate processes, resulting in excessively rapid putty curing, affecting the scraping effect and causing low construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, specifically to a putty scraper device and a putty scraping machine. Background Technology

[0002] In current technology, putty application in the construction industry typically relies on manual labor, especially in the decoration of large walls in shopping malls, factories, residences, and underground garages, where putty application is a time-consuming and labor-intensive task. Traditional putty application methods mainly involve two separate processes: putty spraying and putty troweling, both of which are usually performed manually by workers. However, with the development of technology, construction robots are gradually being introduced into putty application to improve construction efficiency and safety.

[0003] While some robots on the market can independently perform putty spraying and troweling operations for automated putty application, they typically employ two separate actuators, one for spraying and the other for troweling. This design not only increases the complexity and cost of the equipment but also results in a long switch-off time between spraying and troweling, severely impacting the continuity and efficiency of the application process. Furthermore, because the two processes cannot be seamlessly integrated, the curing time of the putty on the wall is uncontrollable, easily leading to hardening and affecting the troweling effect. This drawback is particularly pronounced on walls requiring meticulous finishing. Utility Model Content

[0004] The main purpose of this utility model is to provide a putty scraper device and a putty scraping machine to solve the problem that in the prior art, putty spraying and scraping operations are carried out in two separate processes, which leads to the putty curing too quickly, affecting the scraping effect and the construction efficiency.

[0005] To achieve the above objectives, according to one aspect of the present invention, a putty scraper device is provided, comprising: a connecting frame; a scraper connected to the front end of the connecting frame, the scraper being inclined in the front-rear direction of the putty scraper device, the scraper including a front edge and a rear edge that are in contact with the wall surface; and a spray gun disposed on the connecting frame, the spray gun nozzle being located on the side of the rear edge of the scraper away from the front edge of the scraper.

[0006] In one embodiment, the spray gun includes a spray gun body and a switch for controlling the operation of the spray gun body, and the putty scraper device further includes a drive device connected to the switch.

[0007] In one embodiment, the switch is a wrench that can rotate in the front-back direction, and the driving device is disposed on the side of the wrench perpendicular to the front-back direction. The putty scraper device further includes a transmission structure that is connected to the switch drive, and the driving device drives the switch to move between the open position and the closed position through the transmission structure.

[0008] In one embodiment, the drive device includes a servo motor, and the transmission structure includes a rotating handle. A first end of the rotating handle is connected to the output shaft of the servo motor, and a second end of the rotating handle abuts against the front sidewall of the wrench to drive the wrench to rotate.

[0009] In one embodiment, the connecting frame includes a base with an upper opening and a spray gun bracket disposed within the base. The spray gun is disposed on the spray gun bracket. The putty scraper device further includes an outer cover disposed at the upper opening of the base. The outer cover and the base form an installation cavity. The spray gun bracket and the rotating handle are located within the installation cavity. The front end face of the outer cover is provided with a clearance opening to avoid the spray gun nozzle.

[0010] In one embodiment, the putty scraper device further includes a distance sensor, which is mounted on a connecting frame and has its probe facing the front end.

[0011] In one embodiment, the connecting frame includes a base with an upper opening, a first connecting cylinder disposed on the front end face of the base, a second connecting cylinder disposed on the rear end face of the base, and a spray gun bracket disposed within the base, with the spray gun disposed on the spray gun bracket.

[0012] In one embodiment, the putty scraper device further includes: a support device, comprising a mounting base fixed to the front end of a connecting frame, a floating base, and an elastic device, wherein the floating base is buoyantly disposed on the mounting base in the front-rear direction via the elastic device, and the floating base has a non-working position away from the mounting base and a working position close to the mounting base; a scraper assembly, comprising a scraper bracket pivotally disposed on the floating base and a scraper disposed on the scraper bracket, wherein the pivot of the scraper bracket is perpendicular to the front-rear direction so that the two ends of the scraper swing back and forth relative to the support device; and a connecting rope disposed between the support device and the scraper assembly, wherein when the floating base is in the non-working position, the connecting rope is tensioned to limit the swing of the scraper assembly, and when the floating base moves from the non-working position to the working position, the connecting rope is relaxed, and the scraper assembly swings freely.

[0013] According to another aspect of the present invention, a putty scraping machine is provided, comprising: a robot body including a robotic arm having an output end; and a putty scraper device fixedly disposed at the output end, wherein the putty scraper device is the putty scraper device described above.

[0014] According to a final aspect of the present invention, a putty scraping machine is provided, comprising: a robot body including a robotic arm having an output end; a putty scraper device fixedly disposed at the output end, wherein the putty scraper device is the putty scraper device described above; and a control device, wherein the driving device of the robotic arm and the putty scraper device and the distance measuring sensor are all electrically connected to the control device.

[0015] Applying the technical solution of this utility model, both the scraper and the spray gun are mounted on a connecting frame, with the spray gun nozzle located on the side of the scraper's rear edge away from its front edge. When the putty machine is started, the spray gun first evenly sprays the putty material onto the wall surface, and then the scraper, close to the front edge of the wall, immediately scrapes the freshly sprayed putty, ensuring a smooth finish before it hardens. This structure allows for a near-seamless connection between the putty spraying and scraping processes, significantly improving the continuity and efficiency of putty application and solving the scraping problem caused by excessively rapid putty curing. Especially in applications on large walls, it greatly improves the smoothness and quality of the putty layer. Furthermore, with the spray gun and scraper integrated, only one actuator is needed to move both together, thus reducing production costs.

[0016] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 A perspective structural schematic diagram of an embodiment of the putty scraper device according to the present invention is shown;

[0019] Figure 2 It shows Figure 1 A top view of the putty scraper device.

[0020] Figure 3 It shows Figure 2 A cross-sectional view of the putty scraper device along the AA direction;

[0021] Figure 4 It shows Figure 2 A cross-sectional view of the putty scraper device along the CC direction;

[0022] Figure 5 It shows Figure 1 A schematic diagram of the putty scraper device at one angle after removing the scraper assembly and support device;

[0023] Figure 6 It shows Figure 5 A schematic diagram of the putty scraper device from another angle;

[0024] Figure 7 It shows Figure 5A schematic diagram of the three-dimensional structure of the putty scraper device after the outer cover has been removed;

[0025] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the putty scraper assembly and support device.

[0026] Figure 9 It shows Figure 8 An enlarged structural diagram of the putty scraper device at point A;

[0027] Figure 10 It shows Figure 8 A side view of the putty scraper device; and

[0028] Figure 11 It shows Figure 8 A front view schematic diagram of a putty scraper device.

[0029] The above figures include the following reference numerals:

[0030] 10. Support device; 11. Mounting base; 12. Floating seat; 13. Elastic device; 131. Guide shaft; 132. Spring; 133. Bearing; 20. Scraper assembly; 21. Scraper bracket; 211. Pivot; 22. Scraper; 221. Front edge of scraper; 222. Rear edge of scraper; 30. Connecting rope; 40. Connecting frame; 41. Base; 42. Spray gun bracket; 43. Outer cover; 431. Clearance opening; 44. First connecting cylinder; 45. Second connecting cylinder; 50. Spray gun; 51. Spray gun nozzle; 52. Spray gun body; 53. Switch; 60. Drive device; 70. Transmission structure; 71. First end; 72. Second end; 80. Distance sensor. Detailed Implementation

[0031] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] like Figures 1 to 3 As shown, the putty scraper device of this embodiment includes a connecting frame 40, a scraper 22, and a spray gun 50. The scraper 22 is connected to the front end of the connecting frame 40 and is inclined in the front-rear direction of the putty scraper device. The scraper 22 includes a front edge 221 that adheres to the wall surface and a rear edge 222. The spray gun 50 is mounted on the connecting frame 40, and the nozzle 51 of the spray gun 50 is located on the side of the rear edge 222 away from the front edge 221 of the scraper.

[0036] In this embodiment, both the scraper 22 and the spray gun 50 are mounted on the connecting frame 40, with the nozzle 51 of the spray gun 50 located on the side of the scraper's rear edge 222 away from its front edge 221. When the putty machine is started, the spray gun 50 first evenly sprays the putty material onto the wall surface, and then, close to the wall surface, the front edge 221 of the scraper immediately scrapes the freshly sprayed putty, ensuring a smooth finish before it hardens. This structure allows for a near-seamless connection between the putty spraying and scraping processes, significantly improving the continuity and efficiency of putty application and solving the scraping problem caused by excessively rapid putty curing. Especially in applications on large walls, it greatly improves the smoothness and quality of the putty layer. Furthermore, since the spray gun 50 and scraper 22 are integrated, only one actuator is needed to move them together, thus reducing production costs.

[0037] like Figures 1 to 4As shown, in this embodiment, the spray gun 50 includes a spray gun body 52 and a switch 53 that controls the operation of the spray gun body 52. ​​The putty scraper device also includes a drive device 60, which is connected to the switch 53. Specifically, when the putty scraper is started, the drive device 60 starts, and the drive device 60 drives the switch 53 to open, thereby causing the spray gun 50 to start spraying putty. When putty scraping is no longer needed, the drive relationship between the drive device 60 and the switch 53 is canceled, the switch 53 of the spray gun 50 is closed, thereby causing the spray gun 50 to stop spraying putty. The whole process embodies the characteristics of automation and precise control, significantly improving the efficiency and quality of putty construction and reducing reliance on manual labor.

[0038] like Figures 1 to 4 As shown, in this embodiment, the switch 53 is a wrench that can rotate in the front-back direction. The driving device 60 is located on the side of the wrench perpendicular to the front-back direction. The putty scraper device also includes a transmission structure 70, which is driven by the switch 53. The driving device 60 drives the switch 53 to move between the open and closed positions through the transmission structure 70. Specifically, in this embodiment, the switch 53 is designed as a wrench that can rotate freely in the front-back direction, while the driving device 60 is installed on the side of the wrench, that is, in a position perpendicular to the front-back direction, rather than on its front side. This layout choice optimizes the overall performance and applicability of the putty scraper device. If the driving device 60 is placed on the front side of the wrench, it will increase the length of the device in the front-back direction. This will not only limit the operational flexibility of the putty scraper device in narrow spaces, but may also affect its proximity to the wall, thereby indirectly reducing the accuracy and efficiency of putty spraying and scraping. Especially when the wall to be treated has a complex structure or corners, a longer device may make it impossible to reach or cover all areas that need to be constructed. Conversely, by placing the drive unit 60 on one side of the wrench and establishing a drive connection with the switch 53 using the transmission structure 70, the space occupied by the putty scraper device in the front-to-back direction can be effectively reduced. This also ensures that the drive unit 60 can accurately and efficiently control the movement of the switch 53 between the open and closed positions. This design not only enhances the mobility and adaptability of the putty scraper device, enabling it to maintain high efficiency under various working conditions, but also significantly improves its ability to work in confined or complex environments. By reducing the front-to-back length of the device, the putty scraper device can work closer to the wall surface, ensuring a uniform and meticulous treatment of the wall, ultimately achieving a high-quality putty layer.

[0039] like Figures 1 to 4As shown, in this embodiment, the drive device 60 includes a servo motor, and the transmission structure 70 includes a rotating handle. The first end 71 of the rotating handle is connected to the output shaft of the servo motor, and the second end 72 of the rotating handle abuts against the front sidewall of the wrench to drive the wrench to rotate. Specifically, when the putty spraying operation is about to begin, the servo motor in the drive device 60 receives an activation signal. Subsequently, the output shaft of the servo motor begins to rotate, and the output shaft directly transmits the rotational motion to the first end 71 of the rotating handle. As the output shaft of the servo motor continues to rotate, the first end 71 of the rotating handle deflects at a corresponding angle, thereby driving the entire rotating handle to rotate. During this process, the second end 72 of the rotating handle gradually approaches and eventually comes into close contact with the front sidewall of the wrench. Due to the interaction force between the two, the second end 72 of the rotating handle pushes the wrench to begin rotating around its axis in the front-back direction until the wrench reaches the open position. When the wrench rotates to the open position, it triggers the working mechanism of the putty spray gun 50, enabling the spray gun nozzle 51 to begin spraying putty onto the wall surface evenly and continuously. In other words, in this embodiment, through the effective cooperation of the servo motor and the rotating handle, the putty scraper device can quickly respond to construction needs and adjust the putty spraying state in real time. Whether starting or stopping, it can be done quickly and accurately.

[0040] Of course, in other embodiments not shown in the figures, the driving device can also be an electric actuator, which can push a wrench to open the spray gun by extending and retracting. The above structure is simple and low in cost. Compared with this solution, the embodiment shown in the figures of this application has the advantages of a shorter overall length of the putty scraper device and a shorter spray gun opening time.

[0041] like Figures 1 to 7 As shown, in this embodiment, the connecting frame 40 includes a base 41 with an upper opening and a spray gun bracket 42 disposed within the base 41. The spray gun 50 is disposed on the spray gun bracket 42. The putty scraper device further includes an outer cover 43, which covers the upper opening of the base 41. The outer cover 43 and the base 41 form an installation cavity. The spray gun bracket 42 and the rotating handle are located within the installation cavity. The front end face of the outer cover 43 is provided with a clearance port 431 to avoid the spray gun nozzle 51 of the spray gun 50. Specifically, during the putty spraying operation, the spray gun nozzle 51 sprays putty through the clearance port 431 at the front end of the outer cover 43. The above structure allows the putty to be sprayed directly and smoothly onto the wall surface without being obstructed by the outer cover 43. Meanwhile, the presence of the outer cover 43 ensures that any splashed or spilled putty material cannot directly contact the drive and transmission devices inside the installation cavity during putty spraying. This effectively prevents putty contamination and avoids functional malfunctions or performance degradation of key components due to putty adhesion, thereby guaranteeing the long-term operational stability of the putty scraper device and the consistency of construction results. Furthermore, the protective function of the outer cover 43 also prevents common dust and debris in the construction environment from entering the installation cavity and affecting the spray gun 50 and its internal components.

[0042] It should be noted that in this embodiment, the outer cover 43 is composed of two shells joined together, and the joint between the two shells forms an avoidance opening 431. The above structure is simple and convenient for users to install.

[0043] like Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the putty scraper device further includes a distance sensor 80, which is mounted on the connecting frame 40 with its probe facing forward. Specifically, the distance sensor 80 can detect the relative distance between the putty scraper device and the wall surface, ensuring that the width of the putty sprayed onto the wall surface is within the coverage area of ​​the scraper 22. It should be noted that the distance sensor 80 can be a type of distance sensor such as an ultrasonic sensor or a laser sensor to adapt to different working environments and construction requirements.

[0044] Preferably, in this embodiment, the ranging sensor 80 is fixed to the side wall of the outer cover 43 by a bracket and extends towards the front end.

[0045] like Figure 1 As shown, in this embodiment, the connecting frame 40 includes a base 41 with an upper opening, a first connecting cylinder 44 disposed on the front end face of the base 41, a second connecting cylinder 45 disposed on the rear end face of the base 41, and a spray gun bracket 42 disposed within the base 41, with the spray gun 50 mounted on the spray gun bracket 42. In the above structure, the base 41 serves as the main body of the entire device, supporting the spray gun 50. The first connecting cylinder 44 acts as a connector, ensuring that the scraper 22 can be stably connected to the connecting frame 40. The second connecting cylinder 45 serves as another connector, ensuring a stable connection between the putty scraper device and the robot body. This structure improves the stability and operability of the putty scraper device.

[0046] like Figure 1 , Figure 3 , Figures 8 to 11As shown, in this embodiment, the putty scraper device further includes: a support device 10, a scraper assembly 20, and a connecting rope 30. The support device 10 includes a mounting base 11 fixed to the front end of the connecting frame 40, a floating base 12, and an elastic device 13. The floating base 12 is buoyantly mounted on the mounting base 11 in the front-back direction via the elastic device 13. The floating base 12 has a non-working position away from the mounting base 11 and a working position close to the mounting base 11. The scraper assembly 20 includes a scraper bracket 21 pivotally mounted on the floating base 12 and a scraper 22 mounted on the scraper bracket 21. The pivot 211 of the scraper bracket 21 is perpendicular to the front-back direction so that the two ends of the scraper 22 swing back and forth relative to the support device 10. The connecting rope 30 is disposed between the support device 10 and the scraper assembly 20. When the floating base 12 is in the non-working position, the connecting rope 30 is tensioned to limit the swing of the scraper assembly 20. When the floating base 12 moves from the non-working position to the working position, the connecting rope 30 is relaxed, and the scraper assembly 20 swings freely. Specifically, when not in operation, the distance between the floating seat 12 and the mounting seat 11 of the putty scraper device is at its maximum. At this time, the connecting rope 30 is taut, restricting the back-and-forth swing freedom of the scraper assembly 20. This ensures the scraper assembly 20 remains stable and effectively prevents unnecessary swaying of the scraper 22 due to external interference during equipment transfer or idle travel, thus avoiding potential malfunctions or safety accidents and ensuring the stability and safety of the putty scraper robot during non-operational phases. When the putty scraper device enters the working state, i.e., when the floating seat 12 moves to the working position, the distance between the floating seat 12 and the mounting seat 11 gradually decreases. At this time, the connecting rope 30 slacks, and the connecting rope 30 no longer restricts the scraper assembly 20. After contacting the wall surface, the scraper 22 on the scraper bracket 21 can freely adjust its back-and-forth swing angle according to the wall surface condition, achieving efficient and uniform putty application. The slack state of the connecting rope 30 ensures that the scraper assembly 20 is not subject to additional restrictions, allowing it to fully respond to minor changes in the wall surface, improving the adaptability and operational quality of the putty scraper mechanism.

[0047] It should be noted that in Embodiment 1, by utilizing the tension and slack states of the connecting rope 30 and its coordination with the position of the floating seat 12, automatic state switching without an electronic control system is achieved. Compared with schemes requiring electronic control for state switching, the above structure has at least the following advantages:

[0048] First, the mechanical switching between limit and non-limit states via rope tension and slack eliminates the need for complex electronic components such as sensors, motors, and control systems in the electrical control system. This not only simplifies the overall structure of the putty scraper device, reducing system weight and size, but also significantly reduces power consumption, extends equipment operating time, and minimizes environmental impact.

[0049] Secondly, since it does not rely on an electronic control system, this application uses a 30-degree limit switch on the connecting rope, avoiding common fault problems of electronic control components, such as sensor malfunction, short circuits, and control system software errors. The mechanical connecting rope switching mechanism is more stable, reduces downtime caused by electrical faults, improves the service life of the equipment, and reduces long-term maintenance costs.

[0050] Third, since mechanical structures are generally easier to repair and replace, the above structure can reduce hardware investment costs and lower subsequent operating costs.

[0051] It should be noted that in this embodiment, the distance between the spray gun 50 and the working surface (wall) is controlled by the distance sensor 80 to ensure that the width of the putty sprayed onto the working surface is within the coverage area of ​​the scraper 22. At the same time, the distance between the mounting base 11 and the working surface can be controlled to ensure that the contact force between the scraper and the working surface is stable.

[0052] like Figure 1 and Figure 8 As shown in Embodiment 1, the connecting ropes 30 are two symmetrically distributed on both sides of the support device 10. Specifically, the connecting ropes 30 adopt a symmetrical distribution strategy, located on both sides of the support device 10. This structure is mainly to optimize the limiting effect of the scraper assembly in the non-working state. When the putty scraping robot is not performing putty scraping tasks, the two symmetrically arranged connecting ropes 30 work together to effectively constrain the degrees of freedom of the scraper assembly 20, avoiding accidental swinging or positional displacement that may occur due to gravity or other external forces, thereby improving the safety of the equipment during idle or movement.

[0053] like Figure 8 As shown in Embodiment 1, the scraper bracket 21 includes a middle section and outer end sections located on both sides of the middle section. One end of the connecting rope 30 is disposed on the side of the mounting base 11, and the other end of the connecting rope 30 is disposed on the outer end section of the bracket. Specifically, by disposing of one end of the connecting rope 30 on the side of the mounting base 11 rather than on its end face, the middle of the connecting rope 30 will not rub against the mounting base 11, ensuring the service life of the connecting rope. Furthermore, the advantage of connecting the end of the connecting rope 30 near the end of the scraper bracket compared to connecting it in the middle of the scraper bracket is that, through the connection points at both ends near the end of the scraper bracket, the free swing of the scraper bracket end can be more effectively restricted when not in operation. Since the swing amplitude at the end is often larger than that at the middle, this arrangement helps to reduce uncontrolled swaying of the scraper, avoiding unnecessary contact or collision between the scraper and the wall or other components when the equipment is moved or stopped, thereby protecting the equipment and the wall from damage.

[0054] like Figures 8 to 11As shown, in this embodiment, multiple scraper assemblies 20 are arranged vertically at intervals, and multiple floating seats 12 are arranged corresponding to each scraper assembly 20. An elastic device 13 is provided between each scraper assembly 20 and each floating seat 12. This structure allows each scraper assembly 20 to swing independently, thus providing greater flexibility when dealing with uneven walls. Specifically, the independently operating elastic device allows each scraper assembly 20 to make local adjustments according to the actual condition of the wall surface. That is, even if the overall flatness of the wall surface is poor, the putty scraper can scrape according to the actual situation of each point, thereby obtaining a higher quality putty layer overall. This ability to make local adjustments is particularly important in treating aging walls or in repair projects, as it can effectively compensate for uneven putty application caused by irregular wall surfaces.

[0055] During putty application, when the scraper contacts the wall at a certain speed and pressure, the putty underneath is compressed. Due to the viscous fluid properties of putty, the compressed portion may overflow from both sides of the scraper, forming what is known as "putty overflow lines." This phenomenon is particularly common when the pressure distribution is uneven or the wall surface has minor imperfections, especially when the scraper is in contact with the wall. If this overflowing putty is not subsequently treated, it will leave irregular marks on the wall, affecting the final appearance and quality of the putty layer. To solve the above problems, such as... Figures 8 to 11 As shown, in this embodiment, the length of the scraper 22 of the scraper assembly 20 located on the lower side is greater than the length of the scraper 22 of the scraper assembly 20 located on the upper side. Specifically, the above structure has a longer scraper on the lower side, which is long enough to cover and smooth the putty overflow lines formed on both sides of the previous scraper. During the movement of the putty applicator, the long scraper can closely follow the short scraper, using its longer scraper edge to smooth the overflowing putty, eliminate marks, and fill any pits that may have been left before, thereby achieving secondary smoothing of the putty layer and ensuring that the putty layer surface is smooth and without marks. In addition, when there is a large unevenness in the wall surface, the long scraper can more flexibly adapt to the height difference of the wall surface. Its length provides a larger scraping range, which can better smooth the unevenness of the wall surface during the putty application process. Especially when the putty has a high fluidity, the longer scraper has a larger coverage area, which can better ensure the smoothness and uniformity of the putty layer.

[0056] like Figure 8 and Figure 10As shown, in this embodiment, the scraper 22 is inclined on the scraper bracket 21, and the inclination direction of the scraper 22 gradually tilts towards the support device 10 from bottom to top. Specifically, the inclined scraper can better adapt to minor unevenness of the wall surface. When the scraper contacts the wall surface, its lower side contacts the wall surface first, allowing for gradual application of pressure and avoiding excessive pressure at once, which could lead to an excessively thin putty layer or air bubbles. At the same time, the upper side being away from the wall surface means that a slight inclination angle is formed between the scraper and the wall surface, which can more effectively smooth the putty layer, reduce putty accumulation at the edge of the scraper, and avoid scratches or uneven surfaces. In addition, the inclined setting also helps to control the flow of putty, preventing putty from overflowing to both sides during the scraping process and forming a more uniform putty layer.

[0057] like Figure 10 As shown, in this embodiment, the upper part of the lower scraper 22 is inside the lower part of the upper scraper 22. That is, in the vertical direction, the lower and upper scrapers 22 and the upper scraper 22 partially overlap. This partial overlap design ensures that no obvious dividing line or gap is left at the junction of the two scrapers when applying putty. This continuity is crucial for the quality of the putty layer, because any discontinuity or breakage can lead to a decrease in the strength of the putty layer, an uneven appearance, and affect the effect of subsequent processes such as paint application. The overlapping design of the scrapers prevents putty from accumulating or separating at the junction of the wall surface, ensuring a seamless connection and smooth transition of the putty coating.

[0058] like Figures 8 to 10 As shown, in this embodiment, the elastic device 13 includes a guide shaft 131 and a spring 132 sleeved on the guide shaft 131. The guide shaft 131 is disposed on the floating seat 12, and a bearing 133 is disposed on the mounting seat 11. The guide shaft 131 is movably disposed within the bearing 133. One end of the spring 132 abuts against the floating seat 12, and the other end of the spring 132 abuts against the mounting seat 11. In the above structure, the guide shaft 131 provides guidance and support for the scraper assembly 20, while the spring 132 provides the reaction force of the scraper assembly 20 in the working state, enabling the scraper assembly 20 to adaptively adjust according to the condition of the working surface.

[0059] This application also provides a putty scraping machine. An embodiment of the putty scraping machine (not shown in the figure) according to this application includes: a robot body and a putty scraper device. The robot body includes a robotic arm with an output end. The putty scraper device is fixedly disposed at the output end, and the putty scraper device is the aforementioned putty scraper device. Since the aforementioned putty scraper device has the advantage of achieving high smoothness and construction quality of the putty layer, the putty scraping machine having it also possesses the aforementioned advantages.

[0060] In this embodiment, the putty scraper also includes a control device. The drive unit 60 for the robotic arm and putty scraper device, as well as the distance sensor 80, are all electrically connected to the control device. This structure increases the automation level of the putty scraper and improves the smoothness and construction quality of the putty layer.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0062] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0063] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0064] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A putty trowel device, characterized in that, include: Connector (40); A scraper (22) is connected to the front end of the connecting frame (40). The scraper (22) is inclined in the front-back direction of the putty scraper device. The scraper (22) includes a front edge (221) that is in contact with the wall and a rear edge (222) that is in contact with the wall. A spray gun (50) is mounted on the connecting frame (40), and the nozzle (51) of the spray gun (50) is located on the side of the rear edge (222) of the scraper away from the front edge (221) of the scraper.

2. The putty knife device of claim 1, wherein The spray gun (50) includes a spray gun body (52) and a switch (53) for controlling the operation of the spray gun body (52). The putty scraper device also includes: The drive unit (60) is driven to connect with the switch (53).

3. The putty knife device of claim 2, wherein, The switch (53) is a wrench that can rotate in the front-back direction, the drive device (60) is disposed on the side of the wrench perpendicular to the front-back direction, and the putty scraper device further includes: The transmission structure (70) is driven to the switch (53), and the driving device (60) drives the switch (53) to move between the open position and the closed position through the transmission structure (70).

4. The putty knife device of claim 3, wherein, The drive device (60) includes a servo motor, and the transmission structure (70) includes a rotating handle. The first end (71) of the rotating handle is connected to the output shaft of the servo motor, and the second end (72) of the rotating handle abuts against the front sidewall of the wrench to drive the wrench to rotate.

5. The putty knife device of claim 4, wherein, The connecting frame (40) includes a base (41) with an upper opening and a spray gun bracket (42) disposed within the base (41), the spray gun (50) being disposed on the spray gun bracket (42), and the putty scraper device further includes: The outer cover (43) is installed on the upper opening of the base (41). The outer cover (43) and the base (41) form an installation cavity. The spray gun bracket (42) and the rotating handle are located in the installation cavity. The front end face of the outer cover (43) is provided with a clearance opening (431) to avoid the spray gun nozzle (51) of the spray gun (50).

6. A putty knife device according to any one of claims 2 to 5, wherein The putty scraper device also includes: A ranging sensor (80) is mounted on the connecting frame (40), with the probe of the ranging sensor (80) facing the front end.

7. The putty knife device of claim 1, wherein The connecting frame (40) includes a base (41) with an upper opening, a first connecting cylinder (44) arranged on the front end face of the base (41), a second connecting cylinder (45) arranged on the rear end face of the base (41), and a spray gun bracket (42) disposed in the base (41), wherein the spray gun (50) is disposed on the spray gun bracket (42).

8. The putty knife device of claim 1, wherein, The putty scraper device also includes: The support device (10) includes a mounting base (11) fixed to the front end of the connecting frame (40), a floating base (12) and an elastic device (13). The floating base (12) is buoyantly disposed on the mounting base (11) in the front-back direction via the elastic device (13). The floating base (12) has a non-working position away from the mounting base (11) and a working position close to the mounting base (11) relative to the mounting base (11). The scraper assembly (20) includes a scraper bracket (21) pivotally mounted on the floating seat (12) and a scraper (22) mounted on the scraper bracket (21), wherein the pivot (211) of the scraper bracket (21) is perpendicular to the front-back direction so that the two ends of the scraper (22) swing back and forth relative to the support device (10); A connecting rope (30) is disposed between the support device (10) and the scraper assembly (20). When the floating seat (12) is in the non-working position, the connecting rope (30) is tensioned to restrict the scraper assembly (20) from swinging. When the floating seat (12) moves from the non-working position to the working position, the connecting rope (30) is relaxed, and the scraper assembly (20) swings freely.

9. A putty scraping machine, comprising: The robot body includes a robotic arm with an output end; A putty scraper device is fixedly installed at the output end, characterized in that the putty scraper device is the putty scraper device according to any one of claims 1 to 8.

10. A putty scraping machine, comprising: The robot body includes a robotic arm with an output end; A putty scraper device is fixedly installed at the output end, characterized in that the putty scraper device is the putty scraper device as described in claim 6; The control device, the drive device (60) of the robotic arm and the putty scraper device and the distance sensor (80) are all electrically connected to the control device.

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