WO2022266735A1

WO2022266735A1 - Suspended equipment for painting and cleaning vertical flat surfaces

Info

Publication number: WO2022266735A1
Application number: PCT/BR2022/050206
Authority: WO
Inventors: Jorge Matheus Rodrigues SIMAO; Guilherme SARTORI
Original assignee: Smartec Tecnologia Ltda
Priority date: 2021-06-22
Filing date: 2022-06-08
Publication date: 2022-12-29

Abstract

The invention pertains to the industrial robotics sector and relates to automated equipment used to paint and clean external façades of buildings. To do so, the invention provides equipment (PR) comprising a metal structure carrying a tank (21) linked to an airless machine (20) or housing the high-pressure washer (53), that is mounted together with the lateral movement carriage (3) fastened to a pistol (12), wherein said carriage (13) is driven by a step motor (19) and coupled to a structure (11); and there are four distance sensors arranged about the nozzle of the pistol (12), two upper (32) and two lower (33), for the identification of obstacles in real time; and also comprising two traction motors (22) on each side, with tangent pulleys (27) tensioned by the suspension cables (23), that surround the shaft/drum (24) of the motor and are guided by levers (28), with another parallel shaft (25) tangential to the main drum that separates the suspension cables (23) to ensure said suspension cables are not superposed on the shaft (24), and each traction motor (22) also has a respective safety cable (26) coupled to fall arresters (29); the moveable anchoring structure is formed by two suspension arms, each comprising a beam (38), in which one of the ends of the arms has an anchoring point (39) from which the cables (23) are suspended and at the other end the static anchoring structure is formed by modules that have a rail (35) fastened to the platband of the building by means of three clamps (36) that have adjustment holes (37); with counterweights (46) being positioned at the lower ends both of the suspension cables (23) and of the safety cables (26).

Description

SUSPENDED EQUIPMENT FOR PAINTING AND SURFACES CLEANING

VERTICAL PLANES Technological sector of the invention

[001] The present invention belongs to the industrial robotization sector, and refers, more specifically, to an automatic equipment capable of painting and cleaning external facades of buildings, since due to its embedded automation, it eliminates the need for manual work, increasing productivity, paint quality and paint savings, while reducing employee costs, PPE ^'s and possible work accidents.

state of the art

[002] In current times, most buildings have been constructed with facade systems, such as a glass wall, rather than concrete. Contemporary skyscrapers with glass facades require periodic maintenance, especially window cleaning, due to excessive dust and pollution in the city (Chad, J. J. and McJunkin, J. T., “Façade Maintenance: Owner's Techniques for Data Management Reference,” Building Facade Maintenance, Repair, and Inspection, Vol. 1444, pp. 109-115, 2004). Conventional maintenance usually relies on human labor and a platform suspended by a cable-actuated system. However, these methods require experienced labor, are inherently dangerous, and sometimes cause emergency situations when gusty winds or earthquakes occur.

[003] For these reasons, many studies have been carried out on the subject of automating the work of cleaning windows in tall buildings. Since building walls are always vertical and in the direction of gravity - the ability to move on the vertical surface has been an important issue to deal with (Chu, B., Jung, K., Flan, CS, and Flong, D., “A Survey of Climbing Robots: Locomotion and Adhesion,” Int. J. Precis. Eng. Manuf., Vol. 11, No. 4, pp. 633-647, 2010). Thus, there are many studies on how to generate the holding force against gravity, such as magnetic force, suction force, suspended cable, guide rail embedded in the building wall facade, and biomimetic adhesion force. At the However, only suspended cable and built-in guide, rail-based systems, have been applied to real buildings, as others are still not reliable enough (Moon, SM, Shin, CY, Huh, J. et al. Window cleaning system with water circulation for building façade maintenance robot and its efficiency analysis. Int. J. of Precis. Eng. and Manuf.-Green Tech. 2, 65-72, 2015). [004] To illustrate some solutions, patent documents such as W01 993022063 - “Remote-controlled system for treating external surfaces of buildings” can be cited, which reveals a system for treating a surface, such as the external surfaces of a tall building, which it can be operated remotely without the need to place a worker in close proximity to the surface to be treated. The system includes a vertical support column on which a treatment unit is mounted. The treatment unit can carry out washing, painting, sandblasting and similar operations and includes mechanisms to allow the working device of the unit to be tilted as well as to move parallel and perpendicular to the treated surface. In another embodiment, a window cleaning unit is suspended from the roof and is allowed to descend while cleaning the outer surfaces of windows.

[005] Another document WO2018222057 - “Autonomous device for painting interior walls” shows a device comprising a painting structure that carries a paint container with a lid; a counterweight having a reservoir that can be filled with the counterweight material and a counterweight cover; and a dispersion panel for dispersing paint on the wall. The device also comprises cables connected to the sides of the upper part of the painting structure to suspend it; electric motors to tension and wind the cables and move the painting structure; extendable adjustable posts for carrying the engines, each post comprising two interconnected tubes; and suction cups disposed at the free ends of the tubes for holding each spike separately at a lower point and at an upper point.

[006] Also, document KR20200080593 - "Spreading apparatus" demonstrates an apparatus for applying an object surface, which is at least a part of a wall surface of a building, with paint and a frame. An injection unit that is mounted to be movable on the structure and that sprays a coating material onto the target surface, which needs to be coated between the wall surfaces; and a first smear prevention unit and a second smear prevention unit disposed in front of the injection unit for preventing spreading of spray paint through the injection unit, wherein the first smear prevention unit is through the injection unit. injection. The sprayed material is absorbed to prevent ink from spreading, and the second spreading prevention part is arranged outside the first spreading prevention part to expand the ink spreading prevention gap.

[007] As can be seen above and in other known state-of-the-art technologies (KR20000006299, KR100437183, EP2911567) most existing solutions on building maintenance automation have focused only on the movement mechanism, and the method of cleaning and material handling that is extremely important has not been addressed in a systematic and scientific way. For example, the roller brush method, often used in conventional systems, has an advantage in cleaning efficiency but requires a large amount of water. This excessive use of water causes additional environmental pollution due to the spreading and dripping of contaminated water into the surrounding area.

Novelties and objectives of the invention

[008] To overcome the inconsistencies that persist in the state of the art, the invention solves the defects presented in known systems of painting and cleaning building facades, especially suspended scaffolding. More precisely, it eliminates the cost of involving many workers in the process, as well as PPE ^'s (Personal Protection Equipment) and CPE ^'s (Collective Protection Equipment) and possible accidents at work at height. It also reduces paint waste, reduces service time (both equipment installation and cleaning and painting) and eliminates the unpredictability of the process, since it is an automatic system and, therefore, parameterizable.

[009] To solve the problems mentioned, the known measures do not involve robotization and automation applied to the cleaning and painting sector of building facades, such as the equipment in question. In this way, conventional processes are restricted to using spray guns and more efficient painting/cleaning tools, scaffolding with safety locks and the provision of training and safety courses for workers at height.

[010] It is a system that operates automatically. Furthermore, the same equipment is capable of both painting and cleaning facades by simply changing the painting/cleaning mechanism. And, above all, the final cost of the device is impacted, as it presents a high cost-benefit ratio due to the low added value of the equipment used. And in relation to its application, because it saves both in ink consumption because it is an automatic device and in protection equipment, cost of workers, and in predictability due to automatism, facilitating the issuance of budgets.

[011] The invention is an electromechanical equipment intended for painting and cleaning external facades of buildings which acts suspended by means of mobile anchorages and steel cables, pulled by passing cable motors. As the equipment has two applications, the invention has a modular fastening system in which it can house both the support for the “airless” gun for painting and the support for the pressurized jet for cleaning. The system has a reservoir to guarantee its autonomy and a logic programming developed in its fixed controller. Motors, sensors and other electrical and electronic devices are indirectly powered by the conventional electrical network. Description of the attached drawings

[012] In order for the present invention to be fully understood and put into practice by any technician in this technological sector, it will be described in detail in a clear, concise and sufficient manner, based on the attached drawings, which illustrate and support it, listed below:

Figure 1 represents the perspective view of the painting and cleaning equipment; Figure 2 represents the front view of the painting and cleaning equipment;

Figure 3 represents the front view of the suspended painting and cleaning equipment; Figure 4 represents the perspective view of the equipment's anchoring structure;

Figure 5 represents the perspective view of the structure of the painting and cleaning equipment;

Figure 6 represents the right side view in perspective of the “airless” pistol assembly used by means of a lever that activates the trigger;

Figure 7 represents the perspective view of the movement rail with lateral displacement of the spray gun or cleaning jet;

Figure 8 represents the right side view in perspective of the lateral displacement system assembly adapted to the cleaning system, with emphasis on the pressurized jet of the high pressure washer and its fastening components.

Figure 9 represents the rear view in perspective of the equipment adapted to the cleaning system, highlighting the high pressure washer and its attachment to metal sheets.

Figure 10 represents the perspective view of the assembly of the lateral displacement carriage of the spray gun or the cleaning jet next to the rail; Figure 11 represents the front perspective view of the equipment structure, highlighting the painting or cleaning machine, the fixing plate and the reservoir; Figure 12 represents the perspective view of the vertical movement mechanism of the equipment;

Figure 13 represents the rear view of the equipment structure, highlighting the hose connected to the reservoir and its assembly in metal sheets; Figure 14 represents the front view of the pistol's nozzle, with emphasis on the sensors at the top and bottom; Figure 15 represents the flowchart with the sequence of equipment operating steps;

Figure 16 represents the perspective side view of the fixed anchorage components;

Figure 17 represents the perspective view of the mobile part of the anchoring structure;

Figure 18 represents the top perspective view of the equipment, highlighting the counterweights located at the ends of the cables;

Figure 19 represents the top view in perspective of a second modality of fixed anchoring structure, with adjustments to adapt to the widths of platbands that will be positioned.

Detailed description of the invention

[013] The present invention demonstrates an equipment (PR) that must be installed on a wall (P), with the purpose of performing its cleaning or painting.

[014] The equipment (PR) consists of a metal structure formed by side profiles (1)(2) mounted next to front (3) and rear (4) profiles, interconnected in lower profiles (5), equipped with four casters (10) and lateral displacement structure (11), further comprising a folding plate holder (6), hose holder (7), paint reservoir holder (8) and base plates (30); said structure supports a reservoir (21) supported on the plates (30) and by the support (8) of that reservoir; the pistol (12) of the airless machine (20) is fixed to the lateral displacement carriage (13) through a plate (14) which, by means of at least two fastening elements, preferably screws, presses the handle cable of the gun against the main support plate (15), and said gun (12) has an automated trigger through a DC motor (9) and activated by a lever (16) that has an inductive sensor (17), and said carriage (13 ) driven by a stepper motor (19) and coupled to the structure (11); and around the nozzle of the gun (12), there are four distance sensors, two upper (32) and two lower (33) for real-time identification of obstacles; being composed of two traction motors (22) on each side, with pulleys (27) tangent and tensioned by the suspension cables (23), which involve the shaft/drum (24) of the motor, and are guided by levers (28), having yet another parallel axis (25) tangent to the main drum that guides the suspension cables (23), so as not to overlap in the drum; and each traction motor (22) also has its respective safety cable (26), coupled to fall arresters (29); the equipment also has an accelerometer installed in the cabin and a camera that monitors the painting and cleaning process; the mobile anchoring structure is formed by two support arms each consisting of a beam of structural profile 'I' (38), where at one end of the arms there is the anchorage point (39) in which the cables (23) are suspended and at the other end, by means of three screws, the arms are fixed in lateral movement carriages (45) which are fitted to the rail (35) by means of eight bearings for each carriage, where said carriages have an element lock (40); still, a template bar (41) can be installed between the carriages to synchronize their movements and always maintain the ideal distance between them, the movement of the carriages being limited at the end of the rails of the first and last module by means of a screwed lock ( 42); the fixed anchoring structure is formed by modules, which have a rail (35) of a T-profile structural beam of 1.5 meters in length, preferably, being joined through bolted locks (34), and said beam (35) is fixed on the ledge of the building by means of three clamps (36), which have adjustment holes (37); optionally, a fixed anchorage (43) can be used, which has adjustments (44) to adapt to the different widths of platbands that will be positioned; located at the lower ends of both the suspension cables (23) and the safety cables (26), it has counterweights (46).

[015] By installing the mobile anchorage at the top of the building, the equipment (PR) is suspended using two steel cables (23) and counterweights (46) attached to the anchorage. Such cables (23) are responsible for sustaining and allowing vertical movement, which is carried out by means of two motors (22), arranged at the ends of the cabin, responsible for traction of the equipment. The paint gun (12) or cleaning jet (51) is moved laterally through a linear guide (11) fixed to the equipment structure. The reservoir (21) and command control boxes (48) are attached to the structural profile, in the plates (30) and plate support (6), respectively.

[016] The equipment is capable of cleaning and painting the external facades of buildings in a suspended manner, avoiding obstacles such as windows and air conditioners through distance sensors. By the same principle, it is located in front of the façade, including checking its proximity to the ground. For the analysis of the quality of the painting, there is a camera that transmits the service in real time. The cleaning system (high pressure washer) provides a flow of 500 L/h of water, while the painting system, airless machine (20), provides 0.91 L/min of paint.

[017] Regarding the painting system, the movement of the anchorage of the device is performed manually, similar to conventional systems, still requiring human effort in this regard (as an improvement, you can have a system of lateral movement of the anchorage automated mobile). In addition, the equipment is not yet sensitive to small details of the building's facade, such as the internal edges of windows (to solve this issue, robotic arms can be used to approach and rotate the paint gun or cleaning jet). Finally, the equipment is capable of painting only one color at a time, being necessary to clean the gun and replace the paint in the reservoir (21).

[018] According to Figure 5, the metal structure of the equipment is essentially formed by five metal frames: left side profile (1) and right side profile (2), front profile (3) and rear profile (4), and a profile lower (5). The profiles are preferably manufactured in carbon steel and assembled using a welding process. Each steel frame is joined to the others by means of fastening elements such as screws, preferably to constitute a robust structural block in parallelepiped format, which guarantees support and protects its internal components.

[019] As for the metal sheets, they have functions for fixing, supporting and/or supporting internal components of the equipment (PR). Among the uses, the folding plates stand out for fixing the electrical control panel (6), hose support (7), paint tank support (8), paint tank base (9) and fixing the four lower casters of the device (10). All metal sheets are preferably manufactured in SAE 1020 steel with a thickness of 3/8” or stainless steel with a thickness of 3 mm, depending on the mechanical stress of the piece.

[020] In addition, attached to the front profile (3) of the equipment, there is a structure (11) for the lateral displacement of the painting and cleaning devices, also made of metal sheets and steel tubes.

[021] As illustrated in Figures 6 and 7, the airless gun (12) has an automated trigger and tolerates a maximum pressure of 270 bar (27 MPa). Its fixation on the pistol lateral displacement carriage (13) consists of a plate (14) which, by means of at least two fastening elements, preferably screws, presses the handle of the pistol grip against the main support plate (15) . The plates are made of SAE 1020 steel with a thickness of 3/8” and stainless steel with a thickness of 3 mm, respectively.

[022] For the automation of triggering the gun (12), a reversible DC motor (9) of 12 V and 0.6 A is used, which is activated by maneuvering two interface relays controlled by the PLC (controller programmable logic) of the equipment (PR). Connected to the engine shaft (9), there is a lever (16) that triggers the gun trigger according to engine rotation. As this motor does not have an angular positioning reference, there is a short-range inductive sensor (17) that informs the system of the end of the trigger stroke.

[023] Since the automated actuation of the trigger simulates the manual and conventional movement of the gun (12), and therefore does not interfere or specifically depend on it to function, replacing the gun is feasible according to with the need for the job, which could be the exchange of a paint gun for another one with a different specification. In addition, this type of drive was also developed with the aim of facilitating the removal and placement of the gun, so that it is practical for the operator to remove the “airless” machine (20) and touch up the painting in some specific areas so that manually, such as the façade surface close to the ground. This same practicality and possibility of manual use of the gun occurs with the cleaning system through the easy removal and placement of the high pressure washer (53) as well as its pressurized jet (51), as shown in Figures 8 and 9.

[024] The movement of the pistol occurs through a lateral displacement carriage (13) in which the pistol (12) is fixed. This carriage moves in front of the displacement structure (11) manufactured in carbon steel, with the aid of 8 bearings and is driven by a stepper motor (19) through a timing belt, as shown in Figure 10.

[025] When replacing the cleaning system for the painting system, or vice versa, the lateral displacement mechanism (13) is not modified. There is only the removal of the reservoir (21) in the case of switching to the cleaning system to place the high pressure washer (53) in its place, as well as the removal of the paint gun (12) for the allocation of the water jet. wash (51) and their respective hoses.

[026] The cleaning system and the painting system are different from each other. However, although each one needs its machine for a specific application (airless machine or high pressure washer), the equipment (PR) developed is adaptable for both. The exchange from one system to another is carried out in a practical way, resulting only in the replacement of the reservoir by the high pressure washer, removal of the paint gun (12) and its respective hoses by the pressurized cleaning jet (51), in the case of the exchange for the cleaning system, as shown in Figure 11 . In addition, the cleaning jet is positioned through a part (52) fixed to the lateral movement carriage (13). This flexibility makes that the operator can clean a building and, after replacing the system, start painting immediately.

[027] When replacing the painting system with the cleaning system, the reservoir (21) optionally gives way to the high pressure washing machine (53), and the paint gun (12) is removed to fix the jet cleaning jet (51) by means of a plate (52) which, by means of at least two fastening elements, preferably screws, presses the pressurized jet (51) against the main support plate (15). The flow control of this jet (51) is carried out by means of a reversible DC motor (47) of 12 V and 0.6 A, which is activated through the maneuver of two interface relays controlled by the PLC (programmable logic controller) of the equipment (PR). Connected to the shaft of this motor (47), there is a part (18) which operates the record (50) of the jet (51) of the high pressure washer to control the flow of the cleaning nozzle. As this motor does not have an angular positioning reference, there is a short-range inductive sensor (49) that informs the system of the end of the stroke of the damper maneuver.

[028] Inside the equipment cabin there is an electrical panel that includes the electronic components necessary for operation, such as PLC (programmable logic controller), sources, relays for controlling vertical suspension motors, relays for controlling DC motors responsible for triggering the pistol and maneuvering the cleaning jet (51 ), accelerometer to supervise the movement and inclination of the equipment.

[029] To carry out the vertical movement of the equipment (PR), there are two traction motors (22) one on each side of the suspended cabin. Each motor has a load capacity of approximately 100 kg with a lifting speed of 10 m/min. This represents a motor power of 0.6 hp (450 W) for a voltage of 220 V.

[030] As shown in Figure 12, each motor (22) is capable of pulling its respective suspension cable (23) as this cable performs about four turns on the shaft/drum (24) of the motor. Since there are counterweights (46) at the lower end of the cable, the friction between the cable and the motor shaft ensures traction. mentioned. To prevent the turns of the cable from overlapping each other, there is another parallel axis (25) tangent to the main drum that guides the suspension cable (23). [031] Since there are two different suspension motors (22), and although they have the same specifications, an accelerometer is installed in the suspended cabin of the equipment (PR) to identify if an engine moves faster or longer than another, always correcting these changes. This effect occurs in cases where the center of mass is slightly displaced to the side.

[032] In addition, for safety reasons, each traction motor (22) also has its respective safety cable (26). The safety system is activated when the equipment tilts laterally in a sudden way, characterizing the rupture of one of the suspension cables (23), for example. As there is a pulley (27) tangent and tensioned by the suspension cable and attached to a lever (28), this suspension cable (23) will move in abnormal situations of fall, so that the pulley is no longer tensioned , thus activating the fall arrester (29) through the lever.

[033] The tank (21) of the equipment is positioned on two metal plates (30) which support its weight as well as being surrounded by a chain which guarantees its stability when suspended (Figure 13). This space for the reservoir has sufficient dimensions to accommodate tanks of different volumes. Therefore, despite considering a 30L tank preferably, if the equipment operates in very tall buildings, changing the tank to a 50L tank, for example, is feasible due to the width and length of the tanks being similar, differentiating especially in height. By adapting the machine to the cleaning system, this same space is also able to house, in place of the reservoir (21), the high pressure washer (53) which is fixed to the same support plates (30) of the removed reservoir (Figure 9 ). [034] Assuming that the installation of the container is limited only to its positioning and subsequent insertion of the fisherman's hose (31) inside it, the tank refueling occurs very quickly and simply. Furthermore, switching from painting system to cleaning system as well as switching from one paint color to another also becomes very practical.

[035] A sensor (not shown) is installed for monitoring the level of the reservoir, possibly a pressure transmitter per column - gravimetry (the effectiveness of this specific transmitter will be validated through future tests). Its use automates the process, making the system identify the best time to stop for refueling, avoiding intervals in the middle of painting, always aiming at the least amount of time possible.

[036] In addition, as a future implementation of the project and therefore, through testing, the automatic refilling of the reservoir is being considered, so that it is no longer necessary for the operator to fill the tank, but a pump and valve system so do it automatically. In this way, since the equipment knows the level of the reservoir, its algorithm will direct it to the refueling location at the ideal moment for this.

[037] Located on the lower profile of the machine's suspended cabin, there is a distance sensor (not shown) which identifies the proximity of the equipment to the ground. In this way, the moment it approaches the surface, the system is able to interrupt the vertical movement in order to move to the next column of paint. In addition, identification by this sensor is also useful when the equipment stops for refueling, preventing it from forcing the descent even when it is already on the ground.

[038] Around the nozzle of the gun (12), there are two upper (32) and lower (33) distance sensors for real-time identification of obstacles on the facade to be painted through sudden distance variations during painting , as shown in Figure 14. For this, they have a working “range” of approximately 25 cm to 50 cm, the distance from obstacles such as windows or air conditioners. It works as the gun moves laterally, as shown in Figure 15. As there are sensors on both sides of the gun fan, one will always be able to identify the obstacle before the gun sprays paint, either moving to the left or to the right. On each side, there are upper and lower sensors that span the entire length of the fan to ensure small obstacles are identified too. When an obstacle is detected, the system automatically turns off the trigger of the gun without interrupting the lateral movement, until the normalized surface is identified again, in order to return the ink flow.

[039] All five sensors (there are 4 gun sensors (32)(33) plus 1 distance sensor to identify the proximity of the equipment to the ground) mentioned above are of the ultrasonic type. However, photoelectric sensors with similar specifications will also be tested to compare accuracy and usability between them.

[040] In addition, there is a camera (not shown) that monitors the painting and cleaning process, which has the unique character of remote supervision, not directly interfering in the process. Through this camera, the operator is able to identify the quality of painting or cleaning in real time, as well as any gun clogging or other irregularities. Mobile devices with cameras communicating via App will be tested, as well as portable cameras communicating via WiFi, Bluetooth or another wireless network. It is worth remembering that this “gadget” is for optional use since it is not essential to the electromechanical operation of the equipment (PR).

[041] As illustrated in Figures 16 and 17, the designed anchoring enables the lateral movement of the suspended equipment throughout the horizontal extension of the building. Its system is installed in a modular way, that is, its assembly is adapted according to the length of the façade in question. Since each module is 1.5 meters long, the operator must lift the number of modules needed on the platform covering the entire length to be painted or cleaned, joining each module through locks (34) screwed between the rails (35) .

[042] Initially describing the fixed part of the anchorage, each module has a 1.5 meter long T-profile structural beam rail (35). this beam is fixed to the ledge of the building by means of three clamps (36) for the ledge (from the English, parapet clamp scaffolding). These clamps are preferably made of carbon steel, which have adjustment holes (37) to adapt to the different widths of existing platbands.

[043] Regarding the mobile part of the anchorage, there are two support arms each consisting of a beam of structural profile 'LT (38). At one end of the arms, there is the anchor point (39) from which the steel cables are suspended. At the other end, by means of three screws, the arms are fixed on lateral movement carriages (45) which are fitted to the rail (35) by means of eight bearings for each carriage, in order to enable the lateral displacement of the suspension arms. . Each carriage has a locking screw (40) to ensure immobility during the painting of each column of the building's façade. In this way, despite having two distinct support arms and movements independent of each other, a template bar (41) can be installed between the carriages to synchronize their movements and always maintain the ideal distance between them. It is worth remembering that the displacement of the carriages is limited at the end of the rails of the first and last module by means of a screw lock (42) for safety reasons.

[044] The lateral displacement of the movable anchor arms can be done either manually by the operator, or through a motor which can communicate with the equipment system, so that when finishing the painting of a column the anchor to automatically move to the next column to be painted.

[045] Although the aforementioned anchoring system adapts to different realities of building roofs, in specific cases where there are no platbands, the equipment can also be suspended by anchoring systems such as scaffolding, but obviously without the advantage of moving laterally , so that the developed device does not present any limitation of application in relation to conventional means. In addition to, in normal cases with platband, the equipment can also use a fixed anchorage (43), in which it has adjustments (44) to adapt to the different widths of platbands that will be positioned (Figure 19).

[046] Suspension of the suspended equipment is carried out using two steel cables with a fiber core (23), which are fixed, one at each anchor point (39), as shown in Figure 18. They support at least five times the maximum suspended load, with the limit load used being approximately 100 kg, varying according to the size of the building due to the variable weight of the length of the suspended cables. Each cable is pulled by a suspension motor (22) which moves the equipment vertically through the principle of friction due to the turns of these cables passing through the shaft of the motors. In addition, there are two more safety cables (26) which cross the fall arrest systems (29) for the sole reason of preventing the fall of the equipment in abnormal situations.

[047] Located at the lower ends of both the suspension cables and the safety cables, there are counterweights (46) which result in approximately 10 kg on each side, that is, 5 kg on each counterweight. They serve to keep the four cables aligned on the vertical axis. They are also suspended to accompany the lateral movement of the system.

[048] It is important to point out that the figures and description made do not have the ability to limit the ways of executing the proposed inventive concept, but to illustrate and make the conceptual innovations revealed in this solution understandable. In this way, the descriptions and images must be interpreted in an illustrative and non-limiting way, and there may be other equivalent or analogous ways of implementing the inventive concept now revealed and that do not deviate from the spectrum of protection outlined in the proposed solution.

Claims

1- SUSPENDED EQUIPMENT FOR PAINTING AND CLEANING FLAT VERTICAL SURFACES composed of a cabin supported by cables interconnected to the anchoring structure, and characterized by comprising a metal structure formed by side profiles (1)(2) mounted next to front profiles (3) and rear (4), interconnected in lower profiles (5), equipped with four casters (10) and lateral displacement structure (11), also featuring folding plate support (6), hose support (7), reservoir support ink (8) and base plates (30); said structure supports an "airless" machine (20) and supports a reservoir (21) supported by the plates (30) and anchored by the support (8); the pistol (12) or the cleaning jet (51) is fixed to the lateral displacement carriage (13) through a plate (14) which, by means of at least two fastening elements, preferably screws, presses the grip cable of the gun against the main support plate (15), and said gun (12) has an automated trigger through a DC motor (9) and activated by a lever (16) that has an inductive sensor (17), and said carriage ( 13) is driven by a stepper motor (19) and coupled to the structure (11); and around the nozzle of the gun (12), having four distance sensors, two upper (32) and two lower (33); still being composed of two traction motors (22) on each side, with pulleys (27) tangent and tensioned by the suspension cables (23), which involve the shaft/drum (24) of the motor, and are guided by levers (28 ), having yet another parallel axis (25) tangent to the main drum that guides the suspension cables (23), so as not to overlap in the drum; and each traction motor (22) also has its respective safety cable (26), coupled to a fall arrest device (29); the mobile anchoring structure is formed by two support arms each consisting of a structural 'U' profile beam (38), where at one end of the arms, there is an anchorage point (39) in which the cables (23) are suspended and at the other end, by means of three screws, the arms they are fixed on lateral movement carriages (45) which are fitted to the rail (35) by means of eight bearings for each carriage, where said carriages have a locking element (40); the fixed anchoring structure is formed by modules, which have a rail (35) of a T-profile structural beam of 1.5 meters in length, preferably, being joined through bolted locks (34), and said beam (35) is fixed on the ledge of the building by means of three clamps (36), which have adjustment holes (37); and located at the lower ends of both the suspension cables (23) and the safety cables (26), counterweights (46).

2- EQUIPMENT, according to claim 1, and characterized by the profiles (1)(2)(3)(4)(5) being preferably manufactured in carbon steel and assembled by means of a welding process; and each steel frame is joined to the others by means of fastening elements such as screws, preferably constituting a structural block in the shape of a parallelepiped.

3- EQUIPMENT, according to claim 1, and characterized in that the reservoir (21) is optionally replaced for placement of the high pressure washer (53).

4- EQUIPMENT, according to claim 1, and characterized by the gun (12) being removed for allocation of the washing jet (51).

5- EQUIPMENT, according to claim 3, and characterized in that the pressurized cleaning jet (51) is fixed by means of a plate (52) which, by means of at least two fastening elements, preferably screws, presses the pressurized jet (51) against the main support plate (15).

6- EQUIPMENT, according to claims 4 and 5, and characterized by the flow control of this jet (51) being carried out by means of a reversible DC motor (47) of 12 V and 0.6 A, which is activated through maneuvering two interface relays controlled by the PLC (programmable logic controller); and connected to the shaft of that motor (47), have a part (18) which maneuvers the record (50) of the jet (51) of the high pressure washer to control the flow of the nozzle cleaning; and also, have a short-range inductive sensor (49) that informs the end of the course of the damper maneuver.

7- EQUIPMENT, according to claim 1, and characterized by having an accelerometer installed in the cabin and a camera that monitors the painting and cleaning process.

8- EQUIPMENT, according to claim 1, and characterized by the reservoir (21) and the command control boxes (48) being fixed together to the structural profile, on the plates (30) and plate support (6), respectively.

9- EQUIPMENT, according to claim 8, and characterized in that the reservoir (21) is surrounded by a chain for stability when suspended.

10- EQUIPMENT, according to claim 1, and characterized in that a sensor is installed to monitor the level of the reservoir (21), preferably a pressure transmitter per column.

11- EQUIPMENT, according to claims 1 and 10, and characterized in that it can automatically replenish the reservoir (21), through a pump and valve system; and with the reservoir level, the algorithm directs to the refueling location at the ideal time.

12- EQUIPMENT, according to claim 1, and characterized by the "airless" gun (12) that has an automated trigger with a maximum pressure tolerance of 270 bar (27 Mpa), and the cleaning jet maneuver (51) is activated by reversible DC motors (9) of 12 V and 0.6 A, which are driven by means of two interface relays controlled by a PLC (programmable logic controller).

13- EQUIPMENT, according to claims 1 and 12, and characterized in that a lever (16) is connected to the motor shaft (9) that triggers the gun trigger according to the engine rotation; and also have a short-range inductive sensor (17) that informs the system of the end of the trigger actuation course. 14- EQUIPMENT, according to claims 1, 12 and 13, and characterized by the movement of the gun (12) or the cleaning jet (51) occurs by means of a lateral displacement carriage (13) to which it is fixed, and the carriage moves in front of the structure (11), being pulled by means of a stepper motor (19) through a timing belt.

15- EQUIPMENT, according to claim 1, and characterized by the vertical movement occurring through two traction motors (22), which have a load capacity of 100 kg with a lifting speed of at least 10 m/min.

16- EQUIPMENT, according to claim 1, and characterized in that it is located in the lower profile of the suspended cabin, a distance sensor for identifying proximity to the ground.

17- EQUIPMENT, according to claim 1, and characterized in that around the nozzle of the gun (12), there are two upper sensors (32) and two lower sensors (33) that have a working distance of 25 cm to 50 cm.

18- EQUIPMENT, according to claims 16 and 17, and characterized by the four sensors (32)(33) and the distance sensor being, preferably, of the ultrasonic or photoelectric type.

19- EQUIPMENT, according to claim 1, and characterized in that, optionally, a fixed anchorage (43) can be used, which has adjustments (44) to adapt to the different widths of platbands that will be positioned.

20- EQUIPMENT, according to claim 1, and characterized by the anchoring being formatted in modules, where each module is 1.5 meters long, joining them through locks (34) screwed between the rails (35).

21- EQUIPMENT, according to claim 1, and characterized in that a template bar (41) can be installed between the carriages to synchronize their movements and always maintain the ideal distance between them, the displacement of the carriages being limited at the end of the rails of the first and last module by means of a screw lock (42). 22- EQUIPMENT, according to claim 1, and characterized by the counterweights (46) resulting in up to 10 kg on each side, preferably with 5 kg on each counterweight.