Automatic blade coating and reciprocating smearing head device for overlay building materials

Abstract

The invention provides an automatic scraping and reciprocating smearing head device for a cover face building material. The automatic scraping and reciprocating smearing head device comprises a floating mechanism, a scraping plate mechanism and a spraying head reciprocating mechanism. The floating mechanism is connected with the nozzle reciprocating mechanism; the scraper mechanism is connected with the nozzle reciprocating mechanism; the floating mechanism comprises a first driving mechanism and a second driving mechanism, and the second driving mechanism is connected with the first driving mechanism and used for driving the first driving mechanism to rotate in the circumferential direction; the first driving mechanism is connected with the nozzle reciprocating mechanism and used for pushing the nozzle reciprocating mechanism to move and driving the scraper mechanism to be tightly attached to the wall face. The nozzle reciprocating mechanism comprises a third driving mechanism and a nozzle, and the third driving mechanism is connected with the nozzle and used for driving the nozzle to reciprocate; and an open hole is formed in the spray head and used for being connected with external high-pressure gas, and the high-pressure gas is introduced into the spray head to scatter the coating. Through cooperative operation of the spray head reciprocating mechanism and the self-adaptive floating mechanism, the construction efficiency and the quality stability are effectively improved, and the manual intervention link is reduced.

Description

Technical Field

[0001] The present application relates to the field of automatic surface finishing technology for construction, and in particular to a reciprocating trowel device for automatically scraping and coating surface building materials. Background Art

[0002] In building decoration, wall surface putty and varnish scraping processes are primarily performed manually. Some companies have developed robots to automate this process. Patent application number CN 116971564A, for example, discloses an indoor spraying robot with a high-pressure spray mechanism that can automatically apply putty and latex paint to walls. However, this requires a higher water-cement ratio for putty materials, which can reduce the bond strength. High-viscosity materials like varnish cannot be used, and this method also results in poor surface smoothness, easily clogging the spray gun and failing to fill wall pits.

[0003] Patent application number CN113043290A discloses a plastering robot that can perform lifting operations, with materials flowing out from a material guide pipe of a plastering head, but the plastering head is only suitable for mortar materials with strong fluidity.

[0004] Patent application number CN118065590A discloses a plastering mechanism that is improved on the basis of the above-mentioned plastering robot, in which the material guide tube is made into a reciprocating motion form, but there are still restrictions on the fluidity of the material. Summary of the Invention

[0005] In view of one of the defects in the prior art, the purpose of this application is to provide a reciprocating trowel device for automatically scraping and applying finishing building materials.

[0006] In a first aspect of the present application, a reciprocating trowel device for automatically scraping and applying finishing building materials is provided, comprising a floating mechanism, a scraper mechanism, and a nozzle reciprocating mechanism, wherein the floating mechanism is connected to the nozzle reciprocating mechanism, and the scraper mechanism is connected to the nozzle reciprocating mechanism; wherein:

[0007] The floating mechanism includes: a first driving mechanism and a second driving mechanism, wherein the second driving mechanism is connected to the first driving mechanism and is used to drive the first driving mechanism to rotate circumferentially; the first driving mechanism is connected to the nozzle reciprocating mechanism and is used to drive the nozzle reciprocating mechanism to move and drive the scraper mechanism to adhere to the wall surface;

[0008] The nozzle reciprocating mechanism includes a third driving mechanism and a nozzle. The third driving mechanism is connected to the nozzle and is used to drive the nozzle to reciprocate. The nozzle is provided with an opening for connecting to external high-pressure gas, and high-pressure gas is introduced into the nozzle to disperse the paint.

[0009] Preferably, the first driving mechanism comprises:

[0010] A connecting plate connected to the nozzle reciprocating mechanism;

[0011] A slider connected to the connecting plate and used to drive the connecting plate to move;

[0012] A guide rail connected to the slider, the slider being slidable on the guide rail;

[0013] a transition plate, wherein the guide rail is arranged on the transition plate;

[0014] A nitrogen spring, one end of which is connected to the connecting plate and the other end of which is connected to the transition plate, is used to drive the connecting plate to drive the reciprocating mechanism of the nozzle to move.

[0015] Preferably, the second driving mechanism comprises a fixed plate and a slewing bearing;

[0016] The fixed plate is arranged below the transition plate, the slewing bearing is arranged between the fixed plate and the transition plate, and the slewing bearing is used to drive the transition plate to rotate.

[0017] Preferably, the second driving mechanism further comprises a limit block, one end of which is arranged on the fixed plate, and the other end of which is telescopically arranged to limit the rotation angle of the slewing bearing;

[0018] The transition plate is provided with a groove, and the other end of the limit block can extend into the groove.

[0019] Preferably, the nozzle reciprocating mechanism further comprises a reciprocating bracket, one end of the reciprocating bracket is connected to the floating mechanism, and the other end is connected to the scraper mechanism;

[0020] The third driving mechanism is arranged on the reciprocating bracket and is used to drive the nozzle to reciprocate.

[0021] Preferably, the speed V1 at which the third driving mechanism drives the nozzle to reciprocate is:

[0022]

[0023] Among them, V1 is the reciprocating motion speed; W is the nozzle spray width; L is the scraper length; V0 is the acceleration.

[0024] Preferably, the third driving mechanism includes:

[0025] A driving bracket, wherein the driving bracket is arranged on the reciprocating bracket;

[0026] A screw-nut mechanism is rotatably disposed on the driving bracket;

[0027] A driving motor is provided at one end of the driving bracket and is connected to the screw-nut mechanism for driving the screw-nut mechanism to rotate.

[0028] Preferably, the third driving mechanism further includes:

[0029] A guide mechanism connected to the screw-nut mechanism, for converting the rotational motion of the screw-nut mechanism into linear motion when the screw-nut mechanism rotates, and performing a reciprocating motion on the screw-nut mechanism;

[0030] One end of the feeding bracket is connected to the guide mechanism and can move along with the guide mechanism; the other end of the feeding bracket is provided with the nozzle, and the nozzle moves back and forth along with the feeding bracket under the drive of the guide mechanism.

[0031] Preferably, the nozzle reciprocating mechanism further comprises a drag chain, one end of which is fixed to the other end of the feeding bracket for arranging the material pipe and the air pipe;

[0032] The other end of the drag chain is connected to the nozzle, and the driving bracket is provided with a drag chain groove, in which the drag chain is movably arranged.

[0033] Preferably, the scraper mechanism includes a scraper fixing frame, an upper scraper, a lower scraper, a pressure strip and a side baffle;

[0034] The scraper fixing frame is connected to the reciprocating bracket, and the side baffles are arranged at both ends of the scraper fixing frame to limit the spraying area of the material;

[0035] The upper scraper and the lower scraper are arranged on the scraper fixing frame through the pressure strip, and the upper scraper is located above the lower scraper; a gap is provided on the upper scraper and the lower scraper to enable the upper scraper and the lower scraper to deform under the action of the floating mechanism.

[0036] The present application provides an automatic reciprocating scraping head for covering building materials, which adopts the technical means of combining a floating mechanism, a scraper mechanism and a nozzle reciprocating mechanism to achieve efficient and precise construction; among them, the floating mechanism adopts dual-drive collaborative control, which can adapt to the wall curvature and maintain a constant contact force of the scraper, thereby improving operation stability; the nozzle reciprocating mechanism combines external high-pressure gas with the dynamic nozzle to coordinate the reciprocating motion trajectory, so that the paint particles are evenly dispersed, effectively expanding the spray coverage range, reducing paint waste while ensuring the flatness of the coating, and showing significant advantages in improving construction efficiency, reducing manual dependence and adapting to complex working conditions.

[0037] Other technical effects brought about by the additional features will be further explained in the corresponding embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0039] Figure 1 This is a schematic structural diagram of a reciprocating trowel head device for automatically scraping and applying finishing building materials according to an exemplary embodiment;

[0040] Figure 2 A side view of a reciprocating trowel head device for automatically scraping and applying finishing building materials according to an exemplary embodiment is shown;

[0041] Figure 3 is a structural schematic diagram of a floating mechanism according to an exemplary embodiment;

[0042] Figure 4 1 is a schematic structural diagram of a scraper mechanism according to an exemplary embodiment;

[0043] Figure 5 Schematic diagram of the structure of a nozzle reciprocating mechanism according to an exemplary embodiment;

[0044] Figure 6 Schematic diagram of the working motion of a reciprocating trowel head device for automatically scraping and applying finishing building materials according to an exemplary embodiment;

[0045] In the figure: 1. floating mechanism; 11. first driving mechanism; 111. connecting plate; 112. slider; 113. guide rail; 114. transition plate; 1141. groove; 115. nitrogen spring; 12. second driving mechanism; 121. fixed plate; 122. rotary bearing; 123. limit block; 2. scraper mechanism; 21. scraper fixing frame; 22. upper scraper; 23. lower scraper; 24. pressure strip; 25. side baffle; 3. nozzle reciprocating mechanism; 31. third driving mechanism; 311. guide mechanism; 312. feeding bracket; 313. driving bracket; 314. screw and nut mechanism; 3141. nut; 3142. screw; 316. driving motor; 32. nozzle; 33. opening; 34. reciprocating bracket; 35. drag chain. DETAILED DESCRIPTION

[0046] The present application is described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present application, but are not intended to limit the present application in any form. It should be noted that, without departing from the concept of the present application, a number of variations and improvements may be made by those skilled in the art, and these all fall within the scope of protection of the present application. Parts not described in detail in the following examples may be implemented using existing technologies.

[0047] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0049] In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly specified and specifically defined. In the present application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the embodiments of the present application, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to the process, method, product, or apparatus.

[0051] In view of the poor flatness of the construction surface in the prior art, the gun is easily blocked and the wall pit defects cannot be filled. Based on the above problems, the embodiment of the present application provides an automatic scraping and reciprocating trowel head device for finishing building materials to solve the above problems.

[0052] Reference Figure 1 As shown, in one embodiment of the present application, a reciprocating trowel device for automatically scraping and coating building materials for a surface includes a floating mechanism 1, a scraper mechanism 2, and a nozzle reciprocating mechanism 3. The floating mechanism 1 is connected to the nozzle reciprocating mechanism 3, and the scraper mechanism 2 is connected to the nozzle reciprocating mechanism 3.

[0053] The floating mechanism 1 includes a first drive mechanism 11 and a second drive mechanism 12. The second drive mechanism 12 is connected to the first drive mechanism 11 and is used to drive the first drive mechanism 11 to rotate circumferentially. The first drive mechanism 11 is connected to the nozzle reciprocating mechanism 3 to propel the nozzle reciprocating mechanism 3 and drive the scraper mechanism 2 to adhere to the wall. The nozzle reciprocating mechanism 3 includes a third drive mechanism 31 and a nozzle 32. The third drive mechanism 31 is connected to the nozzle 32 and is used to drive the nozzle to reciprocate. The nozzle 32 is provided with an opening 33 for connecting to external high-pressure gas. High-pressure gas is introduced into the nozzle 32 to disperse the paint.

[0054] The floating mechanism 1, scraper mechanism 2, and nozzle reciprocating mechanism 3 in the above embodiment, when working, the second drive mechanism 12 drives the first drive mechanism 11 to rotate circumferentially, pushes the nozzle reciprocating mechanism 3 to move along the wall, and simultaneously drives the scraper mechanism 2 to stick to the wall through the adaptive adjustment of the floating mechanism 1; in the nozzle reciprocating mechanism 3, the third drive mechanism 31 drives the nozzle 32 to reciprocate along a preset trajectory, and the nozzle 32 atomizes and disperses the paint through the high-pressure gas introduced through the opening 33, and evenly sprays it onto the wall through the nozzle 32 to form dynamic coverage; under the continuous scraping action of the scraper, the atomized paint is evenly smoothed, realizing synchronous and precise control of spraying and scraping, effectively adapting to different wall curvatures and improving construction efficiency.

[0055] It should be noted that the mop head device is fixed as a whole on an external body, and the body can be controlled manually or mechanically, and the body can drive the mop head to move up and down and forward and backward.

[0056] In the above embodiment of the present application, the floating mechanism 1 adopts dual-drive collaborative control, which can adapt to the wall curvature and maintain a constant scraper contact force. At the same time, the nozzle reciprocating mechanism 3 is combined with the nozzle 32 to use high-pressure gas and air flow atomization technology to evenly disperse the paint particles. The nozzle reciprocating mechanism 3 is used to expand the spray coverage range, reduce paint waste, ensure the flatness of the coating, achieve operational stability, improve construction efficiency and adaptability to complex working conditions, and reduce manual dependence.

[0057] In some possible embodiments, the first driving mechanism 11 includes: a connecting plate 111, a slider 112, a guide rail 113, a transition plate 114 and a nitrogen spring 115, wherein the connecting plate 111 is connected to the nozzle reciprocating mechanism 3; the slider 112 is connected to the connecting plate 111, and is used to drive the connecting plate 111 to move; the guide rail 113 is connected to the slider 112, and the slider 112 is slidable on the guide rail 113; the guide rail 113 is set on the transition plate 114; one end of the nitrogen spring 115 is connected to the connecting plate 111, and the other end is connected to the transition plate 114, and is used to drive the connecting plate 111 to drive the nozzle reciprocating mechanism 3 to move.

[0058] Reference Figure 3As shown, specifically, during operation, the connecting plate 111 is connected to the nozzle reciprocating mechanism 3 as a connecting component, and the slider 112 is fixedly connected to the connecting plate 111. When the slider 112 slides on the guide rail 113, it will drive the connecting plate 111 to move together; the guide rail 113 is installed on the transition plate 114 to provide a stable track for the sliding of the slider 112. The two ends of the nitrogen spring 115 are respectively connected to the connecting plate 111 and the transition plate 114. When it is necessary to drive the nozzle reciprocating mechanism 3 to move, the nitrogen spring 115 drives the connecting plate 111 to move through its own elastic force, and then drives the slider 112 connected thereto to slide on the guide rail 113, thereby finally realizing the movement of the nozzle reciprocating mechanism 3.

[0059] In the above-mentioned embodiment of the present application, the nitrogen spring 115 can quickly drive the connecting plate 111 and the nozzle reciprocating mechanism 3 to move, thereby improving the working efficiency of the equipment; the matching structure of the guide rail 113 and the slider 112 provides a stable guide for the movement of the connecting plate 111, thereby enhancing the smoothness and reliability of the mechanism movement. The structure is relatively simple, easy to install, debug and maintain, and reduces the manufacturing cost and subsequent maintenance cost of the equipment.

[0060] It should be noted that, referring to Figure 3 As shown, in a specific embodiment, the connecting plate 111 includes a first connecting plate and a second connecting plate, the first connecting plate is horizontally arranged, the second connecting plate is vertically arranged, one end of the first connecting plate is vertically connected to one end of the second connecting plate, one end of the nitrogen spring 115 is fixed to the end face of the first connecting plate through a bracket, the other end of the nitrogen spring 115 is fixed to the transition plate 114 through a fixing member, and the nozzle reciprocating mechanism 3 is connected to the end face of the second connecting plate.

[0061] One end and the other end of the nitrogen spring 115 are horizontally arranged in the first driving mechanism 11 through a bracket and a fixing member. The nitrogen spring 15 uses high-pressure nitrogen as an elastic medium and realizes elasticity through gas compression and expansion.

[0062] In some possible embodiments, the second driving mechanism 12 includes a fixed plate 121 and a slewing bearing 122 .

[0063] The fixed plate 121 is disposed below the transition plate 114 , and the slewing bearing 122 is disposed between the fixed plate 121 and the transition plate 114 . The slewing bearing 122 is used to drive the transition plate 114 to rotate.

[0064] Specifically, by arranging the slewing bearing 122 of the second driving mechanism 12 between the fixed plate 121 and the transition plate 114, the fixed plate 121 is fixed on the external body, and the slewing bearing 122 itself can rotate. When the scraper mechanism 2 is working in contact with the wall, the slewing bearing 122 can rotate along with the scraper mechanism 2, thereby driving the first driving mechanism 11 to rotate circumferentially.

[0065] The above embodiment of the present application, by providing a rotatable slewing bearing 122, can flexibly rotate with the scraper structure when the scraper mechanism 2 is in contact with the wall to carry out work, thereby enhancing the adaptability of the scraper mechanism 2 in contact with the wall, ensuring that the scraper can fit tightly under various wall angles and shapes, and improving the fitting effect and quality of the construction operation.

[0066] In some possible embodiments, the second driving mechanism 12 further includes a limit block 123, one end of the limit block 123 is set on the fixed plate 121, and the other end is retractable to limit the rotation angle of the slewing bearing 122; a groove 1141 is provided on the transition plate 114, and the other end of the limit block 123 can extend into the groove 1141.

[0067] Specifically, the floating mechanism 1 comprises a nitrogen spring 115, a slewing bearing 122, a fixed plate 121, a guide rail 113, a slider 112, a connecting plate 111, a transition plate 114, and a stop block 123. The transition plate 114 and the fixed plate 121 are connected via the slewing bearing 122, allowing for relative rotation between them. The connecting plate 111 and the transition plate 114 are connected via the guide rail 113 and the slider 112, allowing for relative forward and backward movement between them. The scraper mechanism 2 is fixed to the connecting plate 111. The nitrogen spring 115 is fixed at one end to the transition plate 114 and at the other end to the connecting plate 111, providing forward thrust to the scraper mechanism 2. A groove 1141 is defined at the rear end of the transition plate 114. The stop block 123 is fixed to the frame and located within the groove 1141 to limit the rotation angle.

[0068] In the above embodiment of the present application, a limit block 123 is added to the second driving mechanism 12 to limit the rotation angle of the slewing bearing 122, thereby preventing the scraper mechanism 2 from colliding with or damaging the wall or other components due to excessive rotation; the relative rotation of the transition plate 114 and the fixed plate 121 is achieved through the slewing bearing 122, and the guide rail 113 and the slider 112 enable the connecting plate 111 and the transition plate 114 to move relative to each other back and forth, and the nitrogen spring 115 provides a stable forward thrust for the scraper mechanism 2, ensuring that the scraper mechanism 2 fits tightly against the wall, improving the cleaning or construction effect, and ensuring the flexible movement and stable operation of the scraper mechanism 2 while improving the stability, reliability and safety of the overall operation of the equipment.

[0069] Reference Figure 2 As shown, in some specific embodiments, the nozzle reciprocating mechanism 3 also includes a reciprocating bracket 34, one end of the reciprocating bracket 34 is connected to the floating mechanism 1, and the other end is connected to the scraper mechanism 2; the third driving mechanism 31 is arranged on the reciprocating bracket 34, for driving the nozzle 32 to reciprocate.

[0070] Specifically, the scraper mechanism 2, the floating mechanism 1 and the nozzle reciprocating mechanism 3 are connected together through the reciprocating bracket 34 on the nozzle reciprocating mechanism 3, thereby improving the compactness of the wiper device, reducing the overall volume, and improving the applicability of the workplace.

[0071] Specifically, refer to Figure 6 As shown, the speed V1 of the reciprocating motion of the nozzle driven by the third driving mechanism is:

[0072]

[0073] Among them, V1 is the reciprocating motion speed; W is the nozzle spray width; L is the scraper length; V0 is the acceleration.

[0074] It should be noted that the reciprocating bracket 34 is fixedly connected to the second connecting plate of the connecting plate 111 of the floating mechanism 1 .

[0075] Reference Figure 5 As shown, in some specific embodiments, the third driving mechanism 31 includes: a driving bracket 313 , a screw-nut mechanism 314 and a driving motor 316 .

[0076] Among them, the driving bracket 313 is set on the reciprocating bracket 34; the screw nut mechanism 314 is rotatably set on the driving bracket 313; the driving motor 316 is set at one end of the driving bracket 313, connected to the screw nut mechanism 314, and is used to drive the screw nut mechanism 314 to operate.

[0077] Specifically, during operation, the driving motor 316 drives the screw 3142 of the screw nut mechanism 314 to rotate. When the screw 3142 rotates, the nut 3141 on the screw nut mechanism 314 reciprocates in the length direction of the screw 3142 under the guidance of the guide mechanism 311, driving the nozzle 32 to work reciprocatingly.

[0078] In some specific embodiments, the third driving mechanism 31 further includes: a guiding mechanism 311 and a feeding bracket 312 .

[0079] The guide mechanism 311 is connected to the screw-nut mechanism 314 and is used to convert the rotational motion of the screw-nut mechanism 314 into linear motion when the screw-nut mechanism 314 rotates, thereby causing the screw-nut mechanism 314 to reciprocate on the screw-nut mechanism 314. One end of the feed bracket 312 is connected to the guide mechanism 311 and is movable along with the guide mechanism 311. The nozzle 32 is disposed at the other end of the feed bracket 312 and reciprocates along with the feed bracket 312, driven by the guide mechanism 311.

[0080] Reference Figure 5As shown, it should be noted that the screw nut mechanism 314 includes a screw 3142 and a nut 3141. The screw 3142 rotates, and the nut 3141 is movable in the length direction of the screw 3142. The nut 3141 is connected to the guide mechanism 311 to guide the nut 3141 on the screw 3142 to prevent the nut 3141 from rotating with the screw 3142. At the same time, the guide mechanism 311 reciprocates with the nut 3141 in the length direction of the screw 3142.

[0081] In the above embodiment, a guide mechanism 311 is provided to prevent the feeding bracket 312 from rotating along with the screw nut mechanism 314 during operation. At the same time, when the screw nut mechanism 314 rotates, the guide mechanism 311 can reciprocate horizontally on the driving bracket 313, and the nozzle 32 can simultaneously reciprocate driven by the feeding bracket 312.

[0082] In some specific embodiments, the nozzle reciprocating mechanism 3 also includes a drag chain 35, one end of which is fixed to the other end of the feeding bracket 312 for placing the material pipe and the air pipe; the other end of the drag chain 35 is connected to the nozzle 32 and is movably arranged on the driving bracket 313; the driving bracket 313 is provided with a drag chain groove, and the drag chain 35 is movably arranged in the drag chain groove.

[0083] Specifically, refer to Figure 2 As shown, the nozzle reciprocating mechanism 3 includes a nozzle 32 , a reciprocating bracket 34 , a guide mechanism 311 , a screw-nut mechanism 314 , a feeding bracket 312 , a drag chain 35 and a drive motor 316 . The front end of the reciprocating bracket 34 is fixedly connected to the scraper mechanism 2, and the rear end is fixedly connected to the floating mechanism 1; the guide mechanism 311 and the screw nut mechanism 314 are installed on the driving bracket 313, and the feeding bracket 312 is connected to the screw nut mechanism 314 through the guide mechanism 311; the driving motor 316 provides power to drive the screw nut mechanism 314 to rotate, thereby driving the guide mechanism 311 to reciprocate. The nozzle 32 is set on the feeding bracket 312 and can reciprocate with the guide mechanism 311. The reciprocating motion stroke is controlled by the driving motor 316, thereby adjusting the width range of the cloth; the nozzle 32 and the drag chain 35 are arranged behind the reciprocating mechanism. The drag chain 35 can be provided with a material pipe and an air pipe, which are respectively connected to the nozzle 32 and the opening 33 on the nozzle 32, and paint and high-pressure gas are introduced at the same time to achieve the purpose of breaking up the paint before spraying. The material is sprayed onto the wall in a flat umbrella shape through reciprocating motion. There can be one or two nozzles 32 arranged up and down or left and right.

[0084] Reference Figure 4 As shown, in some possible embodiments, the scraper mechanism 2 includes a scraper fixing frame 21 , an upper scraper 22 , a lower scraper 23 , a pressure strip 24 and a side baffle 25 .

[0085] The scraper fixing frame 21 is connected to the reciprocating bracket 34, and the side baffles 25 are arranged at both ends of the scraper fixing frame 21 to limit the spraying area of the material; the upper scraper 22 and the lower scraper 23 are arranged on the scraper fixing frame 21 through the pressure strip 24, and the upper scraper 22 is located above the lower scraper 23; a gap is provided on the upper scraper 22 and the lower scraper 23 to allow the upper scraper 22 and the lower scraper 23 to deform under the action of the floating mechanism 1.

[0086] Specifically, the scraper mechanism 2 includes a scraper fixing frame 21, an upper scraper 22, a lower scraper 23, a pressure strip 24, and a side baffle 25. The upper scraper 22 and the lower scraper 23 are arranged up and down, and are inclined at a certain angle to the wall (for example, 25 degrees); the upper scraper 22 and the lower scraper 23 are pressed tightly by the pressure strip 24 and fixed to the scraper fixing frame 21; a slit is cut in the middle of the scraper to make it easier to deform the scraper. During operation, the scraper fits against the wall, and the nitrogen spring 115 provides a load force. The scraper deforms under the action of the load force, and the material can be tightly adhered to the wall when scraping up and down; the side baffles 25 are arranged on both sides of the scraper and are connected to the scraper fixing frame 21 to limit the material spraying area and avoid overflow.

[0087] The above describes some specific embodiments of the present application. It should be understood that the present application is not limited to the specific embodiments described above, and those skilled in the art may make various variations or modifications within the scope of the claims, which do not affect the substantive content of the present application. The above preferred features may be used in any combination as long as they do not conflict with each other.

Claims

1. A reciprocating trowel device for automatically scraping and coating building materials, characterized in that: It includes a floating mechanism, a scraper mechanism and a nozzle reciprocating mechanism, wherein the floating mechanism is connected to the nozzle reciprocating mechanism, and the scraper mechanism is connected to the nozzle reciprocating mechanism; wherein: The floating mechanism includes: a first driving mechanism and a second driving mechanism, wherein the second driving mechanism is connected to the first driving mechanism and is used to drive the first driving mechanism to rotate circumferentially; the first driving mechanism is connected to the nozzle reciprocating mechanism and is used to drive the nozzle reciprocating mechanism to move and drive the scraper mechanism to adhere to the wall surface; The nozzle reciprocating mechanism includes a third driving mechanism and a nozzle. The third driving mechanism is connected to the nozzle and is used to drive the nozzle to reciprocate. The nozzle is provided with an opening for connecting to external high-pressure gas, and high-pressure gas is introduced into the nozzle to disperse the paint.

2. The automatic reciprocating scraping head device for coating surface building materials according to claim 1 is characterized in that: The first driving mechanism comprises: A connecting plate connected to the nozzle reciprocating mechanism; A slider connected to the connecting plate and used to drive the connecting plate to move; A guide rail connected to the slider, the slider being slidable on the guide rail; a transition plate, wherein the guide rail is arranged on the transition plate; A nitrogen spring, one end of which is connected to the connecting plate and the other end of which is connected to the transition plate, is used to drive the connecting plate to drive the reciprocating mechanism of the nozzle to move.

3. The automatic reciprocating scraping head device for coating surface building materials according to claim 2 is characterized in that: The second driving mechanism includes a fixed plate and a slewing bearing; The fixed plate is arranged below the transition plate, the slewing bearing is arranged between the fixed plate and the transition plate, and the slewing bearing is used to drive the transition plate to rotate.

4. The automatic reciprocating scraping head device for coating surface building materials according to claim 3 is characterized in that: The second driving mechanism further includes a limit block, one end of which is disposed on the fixed plate and the other end of which is telescopically disposed to limit the rotation angle of the slewing bearing; The transition plate is provided with a groove, and the other end of the limit block can extend into the groove.

5. The automatic reciprocating scraping head device for coating surface building materials according to claim 1 is characterized in that: The nozzle reciprocating mechanism further includes a reciprocating bracket, one end of which is connected to the floating mechanism, and the other end of which is connected to the scraper mechanism; The third driving mechanism is arranged on the reciprocating bracket and is used to drive the nozzle to reciprocate.

6. The automatic reciprocating scraping head device for coating surface building materials according to claim 5 is characterized in that: The speed V1 of the reciprocating motion of the nozzle driven by the third driving mechanism is: Among them, V1 is the reciprocating motion speed; W is the nozzle spray width; L is the scraper length; V0 is the acceleration.

7. The automatic reciprocating scraping head device for coating surface building materials according to claim 5 is characterized in that: The third driving mechanism comprises: A driving bracket, wherein the driving bracket is arranged on the reciprocating bracket; A screw-nut mechanism is rotatably disposed on the driving bracket; A driving motor is provided at one end of the driving bracket and is connected to the screw-nut mechanism for driving the screw-nut mechanism to rotate.

8. The automatic reciprocating scraping head device for coating surface building materials according to claim 7 is characterized in that: The third driving mechanism further includes: A guide mechanism connected to the screw-nut mechanism, for converting the rotational motion of the screw-nut mechanism into linear motion when the screw-nut mechanism rotates, and performing a reciprocating motion on the screw-nut mechanism; One end of the feeding bracket is connected to the guide mechanism and can move along with the guide mechanism; the other end of the feeding bracket is provided with the nozzle, and the nozzle moves back and forth along with the feeding bracket under the drive of the guide mechanism.

9. The automatic reciprocating scraping head device for coating surface building materials according to claim 8 is characterized in that: The nozzle reciprocating mechanism further includes a drag chain, one end of which is fixed to the other end of the feeding bracket for placing the material pipe and the air pipe; The other end of the drag chain is connected to the nozzle, and the driving bracket is provided with a drag chain groove, in which the drag chain is movably arranged.

10. The automatic reciprocating scraping head device for finishing building materials according to claim 5, characterized in that: The scraper mechanism includes a scraper fixing frame, an upper scraper, a lower scraper, a pressure strip and a side baffle; The scraper fixing frame is connected to the reciprocating bracket, and the side baffles are arranged at both ends of the scraper fixing frame to limit the spraying area of the material; The upper scraper and the lower scraper are arranged on the scraper fixing frame through the pressure strip, and the upper scraper is located above the lower scraper; a gap is provided on the upper scraper and the lower scraper to enable the upper scraper and the lower scraper to deform under the action of the floating mechanism.

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