Automatic mortar spraying device for building construction

Abstract

The invention provides an automatic mortar spraying device for building construction, and relates to the technical field of building mortar spraying collets.The automatic mortar spraying device comprises a base, a hopper and an adjusting assembly, the hopper and the adjusting assembly are both fixedly installed on the base, a spraying gun is installed at the output end of the adjusting assembly, and a discharging barrel is arranged on one side of the hopper; a discharging barrel is arranged on the base, a hopper is arranged on the discharging barrel, a multi-section auger is arranged in the discharging barrel and the hopper, the multi-section auger is connected with a motor a on the side, away from the discharging barrel, of the hopper, an air compressor is further arranged on the base, an air storage end pipe of the air compressor is connected with an air storage tank, and an electromagnetic valve is arranged at an air outlet of the air storage tank. Air in mortar is exhausted through vibration generated by the vibrator, the air is pumped into the spherical shell by matching with suction force generated by movement of the piston in the air groove, and then the air is carried to the spray gun to be sprayed out by matching with compressed air released by the air storage tank, so that the air content in the mortar is reduced by 30%-45%, and subsequent mortar spraying work is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of construction mortar spraying machines, and particularly to an automatic mortar spraying device for building construction. Background Art

[0002] A construction mortar spraying machine is a special device that evenly sprays mortar onto the building surface through high-pressure or pneumatic principles, and is widely used in fields such as interior and exterior wall plastering, floor construction, and roof insulation.

[0003] During the process of spraying construction mortar, as the mortar is transported through the pipeline to the spray gun, air bubbles will form in the mortar, and blockages will also occur when the pipeline has a large bending degree, exacerbating the discontinuity of subsequent spraying, affecting the aesthetics after spraying, and also generating noise during transportation. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic mortar spraying device for building construction, including a base, a hopper, and an adjustment component. The hopper and the adjustment component are both fixedly installed on the base. A spray gun is installed at the output end of the adjustment component. An outlet cylinder is provided on one side of the hopper. A multi-section auger is provided in the outlet cylinder and the hopper. The multi-section auger is connected to a motor a on the side of the hopper away from the outlet cylinder. An air compressor is also provided on the base. The air storage end of the air compressor is connected to an air storage tank. An electromagnetic valve is provided at the air outlet of the air storage tank. The outlet of the electromagnetic valve is connected to the spray gun barrel. The outlet of the outlet cylinder is connected to the spray gun barrel;

[0005] An arc plate is fixed on the lower inner wall of the hopper. A spherical shell is fixed in the middle of the arc plate. A plurality of air grooves are provided on the lower sides of the spherical shell and the arc plate. A piston is slidably connected to the upper end of the air grooves in the spherical shell. A connecting rod is slidably provided in the middle of the spherical shell. A counterweight is fixed at the lower end of the connecting rod. The piston is sleeved outside the counterweight. The air grooves penetrate through to the bottom of the hopper and are U-shaped. The upper side wall of the spherical shell is connected to the pipeline connecting the electromagnetic valve and the spray gun;

[0006] A vibrator is provided outside the side wall of the hopper. A fixing frame is fixed on the upper part of the hopper. A screen is elastically supported and connected to the fixing frame. An elastic tension frame is provided on the upper part of the suspension. A suspension is fixed between the elastic tension frames. The upper end of the connecting rod is fixed to the suspension.

[0007] Preferably, a gas pressure sensor is provided on the air storage tank. The outside of the motor a and the air compressor is covered with an outer cover. A controller is provided on the outer cover. The gas pressure sensor, the vibrator, the electromagnetic valve, the motor a, and the air compressor are all electrically connected to the controller.

[0008] Preferably, the spherical shell and the arc plate are integrally formed. The air groove extends from the side wall of the spherical shell adjacent to the hopper into the spherical shell. The thickness of the piston is 5 mm and a hydrophobic coating is applied to the lower side.

[0009] Preferably, the maximum side wall spacing of the U-shaped air groove is 0.1 - 0.5 mm, and the opening is arranged to be narrowing.

[0010] Preferably, the elastic tension frame includes a top block and a second spring. The second spring is fixed between the top block and the suspension. The top block is provided with an inclined groove, and the upper end of the top block abuts against the lower side of the screen mesh.

[0011] Preferably, a side ball is rotatably connected to one end of the top block adjacent to the side wall of the hopper. A lower rod with a spherical lower end is fixed to the lower side surface of the top block. The lower rod passes through the suspension, and the distance from the lower end of the lower rod in the vertical state to the hopper is 1 - 1.5 mm.

[0012] Preferably, the adjusting assembly includes a vertical adjusting structure and a horizontal rotating structure. The vertical adjusting structure is installed at the output end of the horizontal rotating structure, and the spray gun is specifically installed at the output end of the vertical adjusting structure.

[0013] Preferably, the pipeline connecting the solenoid valve and the spray gun includes a rigid pipe and a flexible air delivery pipe. The pipeline including a first one-way pipe connected to the upper side wall of the spherical shell is connected to the rigid pipe.

[0014] Preferably, a tapered pipe with a reduced size from the solenoid valve to one side of the flexible air delivery pipe is provided on the rigid pipe. The end pipe of the first one-way pipe away from the spherical shell is connected to the tapered pipe.

[0015] Preferably, a hand push frame is provided on the base and on the side of the outer cover away from the hopper. Lockable universal wheels are provided on the lower side of the base.

[0016] The present invention provides an automatic mortar spraying device for building construction, which has the following beneficial effects:

[0017] In the present invention, through the vibration generated by the vibrator, the air in the mortar is discharged. The suction force generated by the movement of the piston in the air groove draws the air into the spherical shell, and then the compressed air released by the air storage tank carries it to be sprayed out by the spray gun. After actual measurement, the air content in the mortar is reduced by 30% - 45%, facilitating the subsequent spraying work. Description of the Drawings

[0018] Figure 1 Structural schematic of the present invention Figure 1 ;

[0019] Figure 2 Structural schematic of the present invention Figure 2 ;

[0020] Figure 3 is Figure 2 an enlarged view of area A in

[0021] Figure 4 a schematic structural view of the present invention with the screen removed at the suspension

[0022] Figure 5 is Figure 4 an enlarged view of area B in

[0023] Figure 6 a top view of the present invention with the screen removed

[0024] Figure 7 is Figure 6 a longitudinal sectional view of the structure at A - A

[0025] Figure 8 is Figure 7 an enlarged view of area C in

[0026] Figure 9 a sectional view of the air groove of the present invention

[0027] Among them, 1, hopper; 2, gas storage tank; 3, controller; 4, outer cover; 5, base; 6, spray gun; 7, adjustment assembly; 8, discharge cylinder; 9, screen; 10, tapered pipe; 11, first one - way pipe; 12, vibrator; 13, first spring; 14, fixing frame; 15, suspension; 16, connecting rod; 17, spherical shell; 18, top block; 19, side ball; 20, second spring; 21, multi - section auger; 22, motor a; 23, air compressor; 24, arc plate; 25, counterweight; 26, piston; 27, air groove. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] Such as Figures 1-9As shown in the figure, an automatic mortar spraying device for building construction provided by an embodiment of the present invention includes a base 5, a hopper 1, and an adjustment assembly 7. The hopper 1 and the adjustment assembly 7 are both fixedly installed on the base 5. A spray gun 6 is installed at the output end of the adjustment assembly 7. Specifically, the adjustment assembly 7 includes a vertical adjustment structure and a horizontal rotation structure. The vertical adjustment structure is installed at the output end of the horizontal rotation structure, and the spray gun 6 is specifically installed at the output end of the vertical adjustment structure. And the above-mentioned vertical adjustment structure is specifically a screw drive mechanism, that is, a motor b drives a screw to make the screw drive a slider to move up and down along a column on which the screw is installed. That is to say, the screw drive mechanism includes a screw, a motor b, a slider, and a column. The screw is fixedly connected to the output end of the motor b, the slider is slidably connected to the column, and the spray gun 6 is installed on the slider. The horizontal rotation structure includes a turntable and a motor c. The motor c is fixedly installed on the base 5. The axis of the rotor of the motor c is vertically distributed. The turntable is fixedly connected to the output end of the motor c, and the column is fixedly connected to the turntable. A laser distance sensor can be used to obtain the up and down movement distance of the slider, and an angle sensor can be used to obtain the rotation angle of the turntable;

[0031] On one side of the hopper 1, there is a discharge tube 8. A multi-section auger 21 is arranged in the discharge tube 8 and the hopper 1. Among the above, one section of the multi-section auger 21 is located at the lower part of the hopper 1, and the other end is located inside the discharge tube 8. And the connection between the hopper 1 and the discharge tube 8 is tapered for transition, which is convenient for the part of the multi-section auger 21 in the hopper 1 to push the mortar in the hopper 1 into the discharge tube 8 and then to the outlet of the discharge tube 8. The outlet of the discharge tube 8 is connected to the spray gun 6 through a mortar conveying pipeline;

[0032] The multi-section auger 21 is connected to a motor a22 on the side of the hopper 1 away from the discharge tube 8, that is, the motor a22 drives the multi-section auger 21 to rotate. An air compressor 23 is also arranged on the base 5. The gas storage end pipe of the air compressor 23 is connected to a gas storage tank 2. An electromagnetic valve is arranged at the air outlet of the gas storage tank 2. The outlet of the electromagnetic valve is connected to the spray gun 6 through a pipe. A gas pressure sensor is arranged on the gas storage tank 2. Among the above, before adding mortar to the hopper 1, first turn on the air compressor 23 and close the electromagnetic valve to inflate the gas storage tank 2. According to the gas pressure sensor, obtain the gas pressure in the gas storage tank 2. The air pressure in the gas storage tank 2 is freely regulated according to the air pressure required for mortar spraying. After reaching the expected air pressure, open the electromagnetic valve;

[0033] The lower inner wall of the hopper 1 is fixedly connected with an arc plate 24. The arc plate 24 bends downward, and mortar falling ports are arranged at both ends in the length direction and close to the inner wall of the hopper 1. A spherical shell 17 is fixed in the middle of the arc plate 24. When the motor a22 is turned on, the mortar should be first added to the hopper 1 to cover the height of the mortar falling port, and the maximum height is at half of the height of the spherical shell 17. A plurality of air grooves 27 are arranged on the lower sides of the spherical shell 17 and the arc plate 24. The spherical shell 17 and the arc plate 24 are integrally formed. The air grooves 27 extend from the side wall of the spherical shell 17 close to the hopper 1 into the spherical shell 17. A piston 26 is slidably connected at the upper end of the air grooves 27 inside the spherical shell 17. Specifically, the upper end of the air grooves 27 inside the spherical shell 17 is within the height range of the natural state of the piston 26. Preferably, it is below two-fifths of the height. When the mortar is added to the screen 9 and pushes the top block 18 downward, combined with the downward movement of the piston 26 along with the vibration of the overall structure, the upper side of the piston 26 jumps up and down at the upper end of the air grooves 27 inside the spherical shell 17, facilitating the formation of a sealed or open state, and facilitating the pumping of the air in the air grooves 27 into the piston 26 as the mortar enters with the vibration of the hopper 1. The thickness of the piston 26 is 5 mm and a hydrophobic coating is applied on the lower side to reduce the adhesion of moisture and mortar. A connecting rod 16 is slidably arranged in the middle of the spherical shell 17. A counterweight 25 is fixed at the lower end of the connecting rod 16. The piston 26 is sleeved outside the counterweight 25. The air grooves 27 penetrate through to the bottom of the hopper 1 and are U-shaped. The upper side wall of the spherical shell 17 is connected to the pipeline connecting the solenoid valve and the spray gun 6;

[0034] A vibrator 12 is arranged outside the side wall of the hopper 1. A fixing frame 14 is fixed on the upper part of the hopper 1. A screen 9 is supported and connected by a first spring 13 on the fixing frame 14. The distances from both ends in the width direction of the screen 9 to the corresponding inner walls of the hopper 1 are 3 - 5 mm. The two sides in the length direction of the screen 9 bend downward and then upward to the vertical state. An elastic tension frame is arranged on the upper part of the suspension 15. The suspension 15 is fixed between the elastic tension frames. The upper end of the connecting rod 16 is fixed to the suspension 15. The elastic tension frame includes a top block 18 and a second spring 20. The second spring 20 is fixedly connected between the top block 18 and the suspension 15. The suspension 15 is fixedly connected to the top block 18. The top block 18 includes an inclined groove. The upper end of the top block 18 abuts against the lower sides of both sides in the width direction of the screen 9 to support the screen 9. Among the above, the inclined groove faces the middle of the screen 9.

[0035] The outer sides of the motor a22 and the air compressor 23 are covered with an outer cover 4. A controller 3 is arranged on the outer cover 4. The gas pressure sensor, the vibrator 12, the solenoid valve, the motor a22, the motor b, the motor c, the laser distance sensor, the angle sensor and the air compressor 23 are all electrically connected to the controller 3. The air storage tank 2 is installed at the lower inner part of the controller 3.

[0036] The U-shaped maximum side wall spacing of the air groove 27 is 0.1 - 0.5 mm, and it is set with a reduced opening. Through the shape and size design of the above-mentioned air groove 27 and the overall vibration, it is possible to prevent the moisture in the mortar from entering the air groove 27.

[0037] The pipeline connecting the solenoid valve and the spray gun 6 includes a rigid pipe and a flexible air delivery pipe. The pipeline connected to the upper side wall of the spherical shell 17 includes a first one-way pipe 11 and is connected to the rigid pipe.

[0038] On the base 5 and on the side of the outer cover 4 away from the hopper 1, a hand push frame is provided. On the lower side of the base 5, lockable universal wheels are provided. When using this automatic mortar spraying device for building construction, the lockable universal wheels need to be locked.

[0039] Embodiment 2:

[0040] The difference between this embodiment and Embodiment 1 is that: on the rigid pipe of Embodiment 1, a tapered pipe 10 with a reduced size from the solenoid valve to the flexible air delivery pipe side is provided. One end of the first one-way pipe 11 away from the spherical shell 17 is connected to the tapered pipe 10. Through the variable size of the tapered pipe 10, a suction force is generated inside the spherical shell 17, and the air that reaches the space above the piston 26 in the spherical shell 17 through the air groove 27 enters the tapered pipe 10 through the first one-way pipe 11.

[0041] Embodiment 3:

[0042] The difference between this embodiment and Embodiment 2 is that: one end of the top block 18 close to the side wall of the hopper 1 is rotatably connected to a side ball 19. The side away from the top block 18 of the side ball 19 is in contact with the inner side wall of the hopper 1, which is convenient for transmitting vibration to the top block 18 and also convenient for the up and down shaking of the top block 18. A lower rod with a spherical lower end is fixed to the lower side of the top block 18. The lower rod passes through the suspension 15. The distance from the lower end of the lower rod in the vertical state to the hopper 1 is 1 - 1.5 mm. After the mortar is added to the screen 9, due to the pressure of the screen 9 on the top block 18, the lower end of the lower rod contacts the hopper 1, thereby generating up and down shaking.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic mortar spraying device for building construction, comprising a base (5), a hopper (1) and an adjusting assembly (7). The hopper (1) and the adjusting assembly (7) are both fixedly installed on the base (5). A spray gun (6) is installed at the output end of the adjusting assembly (7). A discharge cylinder (8) is arranged on one side of the hopper (1). A multi-section auger (21) is arranged in the discharge cylinder (8) and the hopper (1). The multi-section auger (21) is connected to a motor a (22) on the side of the hopper (1) away from the discharge cylinder (8). It is characterized in that: An air compressor (23) is also provided on the base (5). The air storage end pipe of the air compressor (23) is connected to an air storage tank (2). An electromagnetic valve is provided at the air outlet of the air storage tank (2). The outlet of the electromagnetic valve is connected to the spray gun (6) through a pipe. The outlet of the discharge cylinder (8) is connected to the spray gun (6) through a pipe. An arc plate (24) is fixed to the inner wall of the lower part of the hopper (1). A spherical shell (17) is fixed in the middle of the arc plate (24). A plurality of air grooves (27) are provided on the lower sides of the spherical shell (17) and the arc plate (24). A piston (26) is slidably connected inside the spherical shell (17) at the upper end of the air groove (27). A connecting rod (16) is slidably arranged in the middle of the spherical shell (17). A counterweight (25) is fixed to the lower end of the connecting rod (16). The piston (26) is sleeved on the outside of the counterweight (25). The air groove (27) penetrates to the bottom of the hopper (1) and is U-shaped. The upper side wall of the spherical shell (17) is connected to the pipeline connecting the electromagnetic valve and the spray gun (6). A vibrator (12) is provided on the outer side wall of the hopper (1). A fixing frame (14) is fixed to the upper part of the hopper (1). A screen (9) is elastically supported and connected to the fixing frame (14). An elastic tension frame is provided on the upper part of the suspension (15). The suspension (15) is fixed between the elastic tension frames. The upper end of the connecting rod (16) is fixed to the suspension (15).

2. The automatic mortar spraying device for building construction according to claim 1, characterized in that: A gas pressure sensor is provided on the air storage tank (2). The motor a (22) and the air compressor (23) are covered with an outer cover (4). A controller (3) is provided on the outer cover (4). The gas pressure sensor, the vibrator (12), the electromagnetic valve, the motor a (22) and the air compressor (23) are all electrically connected to the controller (3).

3. An automatic mortar spraying device for building construction according to claim 1 or 2, characterized in that: The spherical shell (17) and the arc plate (24) are integrally formed. The air groove (27) extends from the side wall of the spherical shell (17) close to the hopper (1) into the spherical shell (17). The thickness of the piston (26) is 5 mm and a hydrophobic coating is applied on the lower side.

4. An automatic mortar spraying device for building construction according to claim 3, characterized in that: The maximum side wall spacing of the U-shaped air groove (27) is 0.1 - 0.5 mm and the opening is narrowed.

5. An automatic mortar spraying device for building construction according to claim 1, characterized in that: The elastic tension frame includes a top block (18) and a second spring (20). The second spring (20) is fixed between the top block (18) and the suspension (15). The top block (18) is provided with an inclined groove. The upper end of the top block (18) abuts against the lower side of the screen (9).

6. The automatic mortar spraying device for building construction according to claim 5, wherein: A side ball (19) is rotatably connected to one end of the top block (18) close to the side wall of the hopper (1). A lower rod with a spherical lower end is fixed to the lower side of the top block (18). The lower rod passes through the suspension (15). The distance from the lower end of the lower rod in the vertical state to the hopper (1) is 1 - 1.5 mm.

7. The automatic mortar spraying device for building construction according to claim 6, characterized in that: The adjusting assembly (7) includes a vertical adjusting structure and a horizontal rotating structure. The vertical adjusting structure is installed at the output end of the horizontal rotating structure. The spray gun (6) is specifically installed at the output end of the vertical adjusting structure.

8. The automatic mortar spraying device for building construction according to claim 7, characterized in that: The pipeline connecting the solenoid valve and the spray gun (6) includes a rigid pipe and a flexible gas pipeline. The pipeline including the first one-way pipe (11) connected to the upper side wall of the spherical shell (17) is connected to the rigid pipe.

9. The automatic mortar spraying device for building construction according to claim 8, characterized in that: A tapered pipe (10) with a reduced size from the solenoid valve to one side of the flexible gas pipeline is provided on the rigid pipe. The end of the first one-way pipe (11) far from the spherical shell (17) is on the tapered pipe (10) for pipe connection.

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