Outer wall real stone paint spraying device
Through the combination of T-type guide rail, drive mechanism and adjustment mechanism, combined with automatic adjustment of pressure sensor and hydraulic rod, the problem of rollers not adaptable and paint control in the prior art is solved, and the automatic adaptation of roller components is realized. Accurate control of quantity improves spraying effect and coating uniformity.
Patent Information
- Application Number
- CN202421010131.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-10
AI Technical Summary
When the existing exterior wall real stone paint spraying device faces uneven walls, the spray roller cannot adjust adaptively, resulting in uneven coating and waste of paint, and it is impossible to effectively control the amount of paint discharge, affecting the appearance effect.
Using T-type guide rail and T-type slider combined with drive mechanism and adjustment mechanism, the automatic adjustment of the roller assembly is achieved through pressure sensors and hydraulic rods, combined with springs and telescopic rods to limit movement, ensure uniformity of the coating, and pass through the rotating shaft and storage air bag. and elastic press keys to control the discharge volume of the spray port.
The automatic adaptation of the roller assembly to the wall is achieved, which avoids coating unevenness and jamming, reduces paint waste, ensures the control of coating uniformity and discharge volume, and improves the spraying effect.
Smart Images
Figure CN222227854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of building exterior wall construction equipment, in particular to an exterior wall real stone paint spraying device. Background Art
[0002] Real stone paint is a kind of paint with decorative effect similar to marble and granite. It is mainly made of natural stone powder of various colors and is used for imitation stone effect on building exterior walls, so it is also called liquid stone.
[0003] The existing spraying device can automatically spray the wall in the vertical direction through two linear guides and a spray roller arranged between the two linear guides, thereby improving the spraying efficiency and quality. However, since the existing spray roller and the linear guide are fixed structures in the direction perpendicular to the wall, when the wall has concave-convex shapes or unevenness, the spray roller cannot be adaptively adjusted according to the condition of the wall, resulting in uneven coating or jamming, affecting the overall appearance. In addition, the existing spraying device cannot effectively control the output amount of the paint, which on the one hand easily causes paint waste, and on the other hand also affects the overall appearance. Utility Model Content
[0004] In view of the technical problems in the prior art, the utility model provides an exterior wall real stone paint spraying device, comprising two parallel and spaced T-shaped guide rails, a T-shaped slider matched with the T-shaped guide rails, a driving mechanism and an adjusting mechanism, wherein the T-shaped slider is slidably installed on the T-shaped guide rails and driven by the driving mechanism, the adjusting mechanism is installed on the T-shaped slider, a roller assembly for spraying is rotatably installed between the two adjusting mechanisms, the adjusting mechanism comprises a portal frame, a connecting block and a hydraulic rod, the portal frame is vertically installed on the T-shaped slider, the connecting block is slidably installed in the portal frame, the hydraulic rod is installed on the top of the portal frame, and the telescopic end of the hydraulic rod is fixedly connected to the connecting block, the two ends of the roller assembly are respectively rotatably connected to the two connecting blocks, a pressure sensor is provided on the roller assembly, the pressure sensor is connected to the hydraulic rod, when the pressure value of the pressure sensor is at a set value, the hydraulic rod does not work, the connecting block is fixed relative to the portal frame, otherwise the hydraulic rod works, and the connecting block moves close to or away from the T-shaped slider driven by the hydraulic rod.
[0005] Furthermore, the pressure sensor is arranged around the entire circle of the roller assembly.
[0006] Furthermore, the set value is a range value.
[0007] Furthermore, the adjustment mechanism also includes a spring, two ends of which are fixedly connected to the top of the portal frame and the connecting block respectively, and when the hydraulic rod is not working, the spring is in an original length state.
[0008] Furthermore, a telescopic rod is installed in the spring, and both ends of the telescopic rod are fixedly connected to the top of the portal frame and the connecting block respectively. The maximum length of the telescopic rod is not greater than the maximum extension length of the hydraulic rod, and the minimum length is not less than the minimum compression length of the hydraulic rod.
[0009] Furthermore, a pressure switch is provided on the roller assembly, and the pressure switch is connected to the driving mechanism. When the pressure value of the pressure sensor is at a set value, the pressure switch is closed, and the driving mechanism drives the T-shaped slider to slide. Otherwise, the pressure switch is disconnected, and the T-shaped slider does not slide.
[0010] Furthermore, the roller assembly includes a rotating shaft, a roller, a plurality of material storage airbags and an elastic pressing key, the roller is rotatably connected to two connecting blocks via the rotating shaft, a plurality of spray openings are spaced apart along the axial direction on the outer peripheral wall of the roller, the plurality of spray openings are distributed in a plurality of rows along the circumference of the roller, and the spray openings in two adjacent rows are staggered, the material storage airbags correspond to the number of rows of spray openings one by one, the material storage airbags are installed in the roller and are located below each row of spray openings, the material storage airbags are connected to the plurality of spray openings in each row through a plurality of connecting pipes in a one-to-one manner, a through hole is provided between two adjacent spray openings, the elastic pressing key is slidably installed in the through hole, one end of the elastic pressing key protrudes from the surface of the roller, and the other end extends into the roller and abuts against the material storage airbag, and the paint in the material storage airbag enters the spray opening through the connecting pipe under the extrusion of the elastic pressing key.
[0011] Furthermore, the elastic pressing key includes a sleeve rod, a return spring and a pressure plate, the sleeve rod is slidably installed in the through hole, one end of the sleeve rod extends into the roller and is fixedly connected to the pressure plate, and the other end protrudes out of the surface of the roller, the pressure plate abuts against the storage airbag, the return spring is sleeved on the outside of the sleeve rod, and the two ends of the return spring are respectively fixedly connected to the inner wall of the through hole and the outer wall of the sleeve rod through limit blocks, and the end of the sleeve rod protruding from the surface of the roller retracts or slides out of the through hole under the extrusion force between the roller and the wall and the elastic force of the return spring.
[0012] Beneficial effects:
[0013] 1. In the utility model, through the setting of T-shaped guide rails, T-shaped sliders and driving mechanisms, the automatic spraying of the drum assembly on the wall can be realized, and the deviation can be prevented to improve the spraying effect. Combined with the adjustment mechanism including the door frame, the connecting block and the hydraulic rod and the setting of the pressure sensor, the relative position between the drum assembly and the wall can be automatically adjusted according to the pressure value between the drum assembly and the wall to ensure uniform coating. At the same time, it can also avoid the occurrence of jamming due to excessive friction between the drum assembly and the wall. Specifically, when the wall is flat as a whole, the pressure value detected by the pressure sensor is always kept at the set value. At this time, the hydraulic rod does not work, and the roller assembly is in a relatively fixed state in the direction perpendicular to the wall. When a pit appears on the wall, the pressure sensor detects that the pressure value between the roller assembly and the wall becomes smaller. At this time, the hydraulic rod works to extend and drive the connecting block and the roller assembly to move closer to the T-shaped slider until the pressure value detected by the pressure sensor reaches the set value. Similarly, when a bulge appears on the wall, the pressure sensor detects that the pressure value between the roller assembly and the wall becomes larger. At this time, the hydraulic rod works to contract and drive the connecting block and the roller assembly to move away from the T-shaped slider until the pressure value detected by the pressure sensor reaches the set value.
[0014] 2. In the utility model, by setting the pressure sensor around the entire circle of the roller assembly, it can ensure that when the roller assembly contacts the wall at any position, the pressure value can be effectively detected; by setting the set value as a range value, the detection error caused by the vibration of the drive mechanism or other environmental factors can be reduced, and the hydraulic rod can be prevented from malfunctioning.
[0015] 3. In the utility model, by setting the spring, the moving rate of the connecting block can be limited to a certain extent, thereby providing a buffer for the contact between the roller assembly and the wall; by limiting the maximum and minimum lengths of the telescopic rod and the telescopic rod, on the one hand, the linear motion of the spring can be ensured and the service life of the spring can be improved; on the other hand, the stroke of the hydraulic rod can be limited to better protect the hydraulic rod.
[0016] 4. In the present invention, the movement state of the T-shaped slider can be controlled by setting a pressure switch, thereby avoiding the occurrence of uneven spraying due to the movement of the roller assembly when adjusting the position between the roller assembly and the wall.
[0017] 5. In the utility model, by setting the rotating shaft, the roller, several material storage air bags and the elastic pressing key, the discharge amount of the paint from the spray port can be automatically and effectively controlled to avoid paint waste and further ensure uniform coating. Specifically, when in use, when the roller assembly contacts the wall, the elastic pressing key located at the contact position retracts into the through hole under the action of the squeezing force of the wall and squeezes the material storage air bag, thereby making the paint in the material storage air bag enter the corresponding several spray ports from the connecting pipe. Since the elastic pressing keys at other positions are not subjected to the squeezing force, the material storage air bags at the corresponding positions will not discharge the paint. In addition, since the length of the elastic pressing key protruding from the surface of the roller is certain, no matter whether the external squeezing force is large or small, as long as the roller contacts the wall, the force acting on the material storage air bag is constant, thereby the paint entering the spray port from the connecting pipe is also constant; by setting the sleeve rod, the return spring and the pressure plate, the squeezing control of the material storage air bag can be conveniently performed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;
[0021] Figure 3 This is a schematic diagram of the installation structure of the material storage airbag of the utility model;
[0022] Figure 4 for Figure 1 Detailed structural diagram at A in the middle;
[0023] Figure 5 This is a schematic diagram of the elastic pressing key structure of the utility model.
[0024] Description of reference numerals:
[0025] 1. T-type guide rail; 2. T-type slider; 3. Adjustment mechanism; 31. Door frame; 32. Connection block; 33. Hydraulic rod; 34. Spring; 4. Roller assembly; 41. Rotating shaft; 42. Roller; 421. Spray port; 43. Storage airbag; 44. Elastic pressing key; 441. Sleeve rod; 442. Reset spring; 443. Pressing plate; 5. Pressure sensor; 6. Telescopic rod; 7. Pressure switch; 8. Through hole. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0027] In the description 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", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0029] In this application, unless otherwise clearly specified and limited, 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0030] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0032] The utility model provides an exterior wall real stone paint spraying device, such as Figures 1 to 3 As shown, it includes two parallel and spaced T-shaped guide rails 1, a T-shaped slider 2 matched with the T-shaped guide rail 1, a driving mechanism and an adjusting mechanism 3, wherein the T-shaped slider 2 is slidably mounted on the T-shaped guide rail 1 and driven by the driving mechanism, the adjusting mechanism 3 is mounted on the T-shaped slider 2, and a roller assembly 4 for spraying is rotatably mounted between the two adjusting mechanisms 3, the adjusting mechanism 3 includes a door frame 31, a connecting block 32 and a hydraulic rod 33, the door frame 31 is vertically mounted on the T-shaped slider 2, the connecting block 32 is slidably mounted in the door frame 31, the hydraulic rod 33 is mounted on the top of the door frame 31, and the telescopic end of the hydraulic rod 33 It is fixedly connected to the connecting block 32, and the two ends of the roller assembly 4 are rotatably connected to the two connecting blocks 32 respectively. A pressure sensor 5 is provided on the roller assembly 4, and the pressure sensor 5 is connected to the hydraulic rod 33. When the pressure value of the pressure sensor 5 is at a set value, the set value is preferably a range value. Through this setting, the detection error caused by the vibration of the driving mechanism or other environmental factors can be reduced, and the hydraulic rod 33 can be avoided from malfunctioning. When the hydraulic rod 33 does not work, the connecting block 32 is fixed relative to the portal frame 31, otherwise the hydraulic rod 33 works, and the connecting block 32 moves closer to or away from the T-shaped slider 2 driven by the hydraulic rod 33.
[0033] In this embodiment, through the arrangement of the T-shaped guide rail 1, the T-shaped slider 2 and the driving mechanism, the automatic spraying of the wall by the roller assembly 4 can be realized, and the deviation can be prevented to improve the spraying effect. In combination with the adjustment mechanism 3 including the door frame 31, the connecting block 32 and the hydraulic rod 33 and the arrangement of the pressure sensor 5, the relative position between the roller assembly 4 and the wall can be automatically adjusted according to the pressure value between the roller assembly 4 and the wall to ensure uniform coating. At the same time, the occurrence of jamming due to excessive friction between the roller assembly 4 and the wall can be avoided. Specifically, when the wall is flat as a whole, the pressure value detected by the pressure sensor 5 is always maintained at the set value. At this time, the liquid The pressure rod 33 is not working, and the roller assembly 4 is in a relatively fixed state in the direction perpendicular to the wall. When a pit appears on the wall, the pressure sensor 5 detects that the pressure value between the roller assembly 4 and the wall becomes smaller. At this time, the hydraulic rod 33 works to extend and drives the connecting block 32 and the roller assembly 4 to move closer to the T-shaped slider 2 until the pressure value detected by the pressure sensor 5 reaches the set value. Similarly, when a bulge appears on the wall, the pressure sensor 5 detects that the pressure value between the roller assembly 4 and the wall becomes larger. At this time, the hydraulic rod 33 works to contract and drives the connecting block 32 and the roller assembly 4 to move away from the T-shaped slider 2 until the pressure value detected by the pressure sensor 5 reaches the set value.
[0034] In the present invention, preferably, Figure 1 , Figure 3 As shown, the pressure sensor 5 is arranged around the roller assembly 4 in a whole circle.
[0035] In this embodiment, by arranging the pressure sensor 5 around the roller assembly 4 in a full circle, it can be ensured that when any position of the roller assembly 4 contacts the wall, the pressure value can be effectively detected.
[0036] In the present invention, preferably, Figure 1 , Figure 2 As shown, the adjustment mechanism 3 also includes a spring 34, the two ends of which are fixedly connected to the top of the portal frame 31 and the connecting block 32 respectively, and when the hydraulic rod 33 is not working, the spring 34 is in the original length state; a telescopic rod 6 is installed in the spring 34, and the two ends of the telescopic rod 6 are fixedly connected to the top of the portal frame 31 and the connecting block 32 respectively, and the maximum length of the telescopic rod 6 is not greater than the maximum extension length of the hydraulic rod 33, and the minimum length is not less than the minimum compression length of the hydraulic rod 33.
[0037] In this embodiment, by setting the spring 34, the moving rate of the connecting block 32 can be limited to a certain extent, thereby providing a buffer for the contact between the roller assembly 4 and the wall; by limiting the maximum and minimum lengths of the telescopic rod 6 and the telescopic rod 6, on the one hand, the linear motion of the spring 34 can be ensured and the service life of the spring 34 can be improved; on the other hand, the stroke of the hydraulic rod 33 can be limited to better protect the hydraulic rod 33.
[0038] In the present invention, preferably, Figure 1 , Figure 3 As shown, the roller assembly 4 is also provided with a pressure switch 7, and the pressure switch 7 is connected to the driving mechanism. When the pressure value of the pressure sensor 5 is at the set value, the pressure switch 7 is closed, and the driving mechanism drives the T-shaped slider 2 to slide. Otherwise, the pressure switch 7 is disconnected, and the T-shaped slider 2 does not slide.
[0039] In this embodiment, by setting the pressure switch 7, the movement state of the T-shaped slider 2 can be controlled to avoid uneven spraying caused by the movement of the roller assembly 4 when the position between the roller assembly 4 and the wall is adjusted.
[0040] In the present invention, preferably, Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the roller assembly 4 includes a rotating shaft 41, a roller 42, a plurality of material storage airbags 43 and an elastic pressing key 44. The roller 42 is rotatably connected to the two connecting blocks 32 through the rotating shaft 41. A plurality of spray ports 421 are spaced apart along the axial direction on the outer peripheral wall of the roller 42. The plurality of spray ports 421 are distributed in a plurality of rows along the circumference of the roller 42, and the spray ports 421 in two adjacent rows are staggered. The material storage airbags 43 correspond to the number of rows of the spray ports 421 one by one. The material storage airbags 43 are installed in the roller 42, and the position Below each row of spray ports 421, the material storage airbag 43 is connected to the spray ports 421 in each row through a plurality of connecting pipes. To facilitate the addition of paint to the material storage airbag 43, paint can be added through a feed pipe and a branch pipe entering from the center of the drum 42. In addition, to prevent the paint in the material storage airbag 43 from entering the spray ports 421 through the connecting pipe due to the centripetal force or other external forces of the rotation of the drum 42, an air film can be set in the connecting pipe. When there is no pressure or insufficient pressure, the air film closes the connecting pipe. A gas film is opened between two adjacent spray ports 421. Through hole 8, one through hole 8 can be set or multiple through holes 8 can be set. When set to one, the through hole 8 is located in the middle of each row of spray ports 421. The elastic pressing key 44 is slidably installed in the through hole 8, and one end of the elastic pressing key 44 protrudes from the surface of the roller 42, and the other end extends into the roller 42 and abuts against the material storage airbag 43. The paint in the material storage airbag 43 enters the spray port 421 through the connecting pipe under the extrusion of the elastic pressing key 44; the elastic pressing key 44 includes a sleeve rod 441, a return spring 442 and a pressure plate 443, and the sleeve rod 4 41 is slidably installed in the through hole 8, one end of the sleeve rod 441 extends into the roller 42 and is fixedly connected to the pressure plate 443, and the other end protrudes from the surface of the roller 42, the pressure plate 443 abuts against the storage airbag 43, the return spring 442 is sleeved on the outside of the sleeve rod 441, and the two ends of the return spring 442 are respectively fixedly connected to the inner wall of the through hole 8 and the outer wall of the sleeve rod 441 through limit blocks, and the end of the sleeve rod 441 protruding from the surface of the roller 42 retracts or slides out of the through hole 8 under the extrusion force between the roller 42 and the wall and the elastic force of the return spring 442.
[0041] In this embodiment, by setting the rotating shaft 41, the roller 42, the plurality of material storage airbags 43 and the elastic pressing key 44, the discharge amount of the paint from the spray port 421 can be automatically and effectively controlled to avoid paint waste and further ensure uniform coating. Specifically, when the roller assembly 4 contacts the wall, the elastic pressing key 44 located at the contact portion retracts into the through hole 8 under the action of the wall squeezing force and squeezes the material storage airbag 43, thereby allowing the paint in the material storage airbag 43 to enter the corresponding plurality of spray ports 421 from the connecting pipe. 4 is not subjected to the squeezing force, so the material storage airbag 43 at the corresponding position will not discharge the material. In addition, since the length of the elastic pressing key 44 protruding from the surface of the roller 42 is certain, no matter whether the external squeezing force is large or small, as long as the roller 42 abuts against the wall, the force applied to the material storage airbag 43 is constant, and then the paint entering the spray port 421 from the connecting pipe is also constant; through the arrangement of the sleeve rod 441, the reset spring 442 and the pressing plate 443, the squeezing control of the material storage airbag 43 can be convenient, and at the same time, when not squeezed, it can automatically reset to prevent the paint in the material storage airbag 43 from flowing out.
[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. A device for spraying exterior wall real stone paint, comprising two parallel and spaced T-shaped guide rails (1), a T-shaped slider (2) matched with the T-shaped guide rail (1), a driving mechanism and an adjusting mechanism (3), wherein the T-shaped slider (2) is slidably mounted on the T-shaped guide rail (1) and driven by the driving mechanism, the adjusting mechanism (3) is mounted on the T-shaped slider (2), and a roller assembly (4) for spraying is rotatably mounted between the two adjusting mechanisms (3), characterized in that: The adjustment mechanism (3) comprises a portal frame (31), a connecting block (32) and a hydraulic rod (33). The portal frame (31) is vertically mounted on the T-shaped slide block (2). The connecting block (32) is slidably mounted in the portal frame (31). The hydraulic rod (33) is mounted on the top of the portal frame (31), and the telescopic end of the hydraulic rod (33) is fixedly connected to the connecting block (32). The two ends of the roller assembly (4) are respectively rotatably connected to the two connecting blocks (32). The roller assembly (4) is provided with a pressure sensor (5), and the pressure sensor (5) is connected to the hydraulic rod (33). When the pressure value of the pressure sensor (5) is at a set value, the hydraulic rod (33) does not work, and the connecting block (32) is fixed relative to the portal frame (31). Otherwise, the hydraulic rod (33) works, and the connecting block (32) moves closer to or away from the T-shaped slide block (2) driven by the hydraulic rod (33).
2. The exterior wall real stone paint spraying device according to claim 1, characterized in that: The pressure sensor (5) is arranged around the roller assembly (4) in a complete circle.
3. An exterior wall real stone paint spraying device according to claim 1 or 2, characterized in that: The set value is a range value.
4. The exterior wall real stone paint spraying device according to claim 3, characterized in that: The adjustment mechanism (3) further comprises a spring (34), the two ends of which are respectively fixedly connected to the top of the door frame (31) and the connecting block (32); when the hydraulic rod (33) is not working, the spring (34) is in an original length state.
5. The exterior wall real stone paint spraying device according to claim 4, characterized in that: A telescopic rod (6) is installed in the spring (34), and two ends of the telescopic rod (6) are respectively fixedly connected to the top of the portal frame (31) and the connecting block (32), and the maximum length of the telescopic rod (6) is not greater than the maximum extension length of the hydraulic rod (33), and the minimum length is not less than the minimum compression length of the hydraulic rod (33).
6. The exterior wall real stone paint spraying device according to claim 5, characterized in that: The roller assembly (4) is also provided with a pressure switch (7), and the pressure switch (7) is connected to the driving mechanism. When the pressure value of the pressure sensor (5) is at a set value, the pressure switch (7) is closed, and the driving mechanism drives the T-shaped slider (2) to slide; otherwise, the pressure switch (7) is disconnected, and the T-shaped slider (2) does not slide.
7. The exterior wall real stone paint spraying device according to claim 1, characterized in that: The roller assembly (4) comprises a rotating shaft (41), a roller (42), a plurality of material storage airbags (43) and an elastic pressing key (44); the roller (42) is rotatably connected to the two connecting blocks (32) via the rotating shaft (41); a plurality of spraying ports (421) are arranged on the outer peripheral wall of the roller (42) at intervals along the axial direction; the plurality of spraying ports (421) are distributed in a plurality of rows along the circumference of the roller (42); and the spraying ports (421) in two adjacent rows are staggered; the number of rows of the material storage airbags (43) and the number of rows of the spraying ports (421) correspond one to one; the material storage airbags (43) are installed on the roller The cylinder (42) is located below each row of spray ports (421). The storage airbag (43) is connected to the plurality of spray ports (421) in each row through a plurality of connecting pipes. A through hole (8) is provided between two adjacent spray ports (421). The elastic pressing key (44) is slidably installed in the through hole (8). One end of the elastic pressing key (44) protrudes from the surface of the cylinder (42), and the other end extends into the cylinder (42) to abut against the storage airbag (43). The paint in the storage airbag (43) enters the spray port (421) through the connecting pipe under the squeezing action of the elastic pressing key (44).
8. The exterior wall real stone paint spraying device according to claim 7, characterized in that: The elastic pressing key (44) comprises a sleeve rod (441), a return spring (442) and a pressure plate (443); the sleeve rod (441) is slidably installed in the through hole (8); one end of the sleeve rod (441) extends into the roller (42) and is fixedly connected to the pressure plate (443); the other end protrudes from the surface of the roller (42); the pressure plate (443) abuts against the material storage airbag (43); the return spring (442) is sleeved outside the sleeve rod (441), and the two ends of the return spring (442) are respectively fixedly connected to the inner wall of the through hole (8) and the outer wall of the sleeve rod (441) through a limit block; the end of the sleeve rod (441) protruding from the surface of the roller (42) retracts or slides out of the through hole (8) under the extrusion force between the roller (42) and the wall and the elastic force of the return spring (442).