Automatic paint spraying system for civil air defense door leaf

Abstract

The utility model discloses an automatic paint spraying system for civil air defense door leaves, and relates to the technical field of civil air defense door leaf spraying processing, the automatic paint spraying system comprises a paint spraying room and a dust filtering room, in the automatic paint spraying system, civil air defense door leaf workpieces are transported into the paint spraying room through an electric trailer mechanism, and are sprayed through a paint spraying system; the axial flow fan is turned on, flue gas in the paint spraying chamber is pumped into the comprehensive dust filtering chamber, a spraying structure is arranged in the comprehensive dust filtering chamber for spraying water, adsorbing and removing dust and is matched with turbulent flow of a spoiler to improve water and dust mixing, adsorbed sewage flows into the precipitation and purification water pool to be precipitated, and filtered gas is discharged outwards through a tail end exhaust pipe containing a top cap. According to the system device, space is fully utilized for paint spraying work, closed space paint spraying and water mist dust and water paint removal, environmental pollution is well reduced, automatic control over an electrical loop is achieved, the number of errors caused by personnel operation is reduced, paint spraying is uniform, efficiency is high, and waste is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of spray painting technology for civil defense door panels, and in particular to a self-spraying paint system for civil defense door panels. Background Technology

[0002] Civil defense doors are part of the entrances and exits of civil defense projects, mainly used for protection during natural disasters such as war and earthquakes. They belong to civil defense protection equipment and serve to protect personnel safety and prevent the entry of external shock waves and toxic gases. During the manufacturing process of civil defense doors, the surface needs to be painted to ensure the protective performance and quality of the doors.

[0003] In the current civil defense field, steel door panels of different models are mainly painted manually. However, manual painting is uneven, inefficient, and may not be applied properly, affecting the health of the painters. The paint fumes are strong at the painting site, and manual painting takes up a lot of space, resulting in serious waste of paint.

[0004] Therefore, a self-spraying paint system for civil defense doors needs to be designed to solve this problem. Utility Model Content

[0005] This utility model provides a self-spraying paint system for civil defense doors, which solves the aforementioned technical problems.

[0006] To solve the above-mentioned technical problems, this utility model provides a self-spraying painting system for civil defense doors, including a spray booth and a dust filter chamber. An exhaust pipe with a top cap is fixedly connected to one end of the dust filter chamber, and an axial flow fan is fixedly connected to the other end. A suction pipe is fixedly connected between the axial flow fan and the spray booth, with one end of the suction pipe penetrating into the interior of the spray booth and fixedly connected to a large suction head. A spraying system is installed inside the spray booth, and two sets of electric trailer mechanisms are symmetrically installed at the lower part of the spraying system. Civil defense door workpieces are placed between the two sets of electric trailer mechanisms for spraying. An observation port with a detection door is opened on the outer side of the dust filter chamber. A spray structure is installed on one side of the dust filter chamber, and multiple baffles are symmetrically and alternately fixed on the other side of the dust filter chamber. The spraying system, electric trailer mechanisms, axial flow fan, and spray structure are electrically connected to an external PLC control box.

[0007] Preferably, the spray structure includes a high-lift clean water pump and rectangular diversion pipes fixed at the upper and lower ends of the dust filter chamber. Multiple spray heads are fixedly installed at opposite ends of the two rectangular diversion pipes. The two rectangular diversion pipes are connected to a water supply pipe, which passes through the dust filter chamber and connects to the outlet of the external high-lift clean water pump. The inlet of the high-lift clean water pump is connected to the upper part of the external sedimentation and purification water tank through a pipe. A sewage discharge pipe is installed at the bottom of the dust filter chamber and connects to the external sedimentation and purification water tank.

[0008] Preferably, the painting system includes two sets of support frames installed inside the paint booth. Each set of support frames has an aluminum alloy side beam fixed to its top, a support plate fixed to the side end of the aluminum alloy side beam, and a rack two fixed to the top of the support plate. The aluminum alloy side beam is driven by the rack two to install a longitudinal moving structure. An aluminum alloy crossbeam is fixed between the two longitudinal moving structures. Fixed plates are fixed to the opposite sides of the aluminum alloy crossbeam. Two automatic spray guns are fixedly installed obliquely and symmetrically at the bottom of the two fixed plates. A support plate is fixed to the back of the aluminum alloy crossbeam. A rack one is fixed to the top of the support plate. The aluminum alloy crossbeam is driven by the rack one to install the aluminum alloy crossbeam.

[0009] Preferably, the lateral moving mechanism includes a movable base and two sets of mounting sliders fixedly installed on the top of the aluminum alloy beam. Two sets of connecting slide rails are fixedly installed inside the upper part of the movable base and slidably connected to the two sets of mounting sliders. A second reduction motor is fixedly installed on the top of the movable base. The output shaft of the second reduction motor passes through the interior of the movable base and is fixedly connected to a second drive gear that meshes with a rack. A nozzle positioning frame is fixedly installed at the bottom of the movable base, and an automatic spray gun is installed at the bottom of the nozzle positioning frame.

[0010] Preferably, the longitudinal moving structure includes a beam motor connecting frame fixedly connected to the aluminum alloy beam and a circular guide rail fixed to the top of the aluminum alloy side beam. A U-shaped guide rail is fixed to the inner side of the beam motor connecting frame and slidably connected to the circular guide rail. A reduction motor is fixed to the side end of the beam motor connecting frame. The output shaft of the reduction motor passes through the beam motor connecting frame and is fixed with a drive gear and a rack.

[0011] Preferably, the electric trailer mechanism includes a fixed pulley fixed outside the paint booth, a guide rope pulley inside the paint booth, and a base bracket. The trailer body is disposed between the fixed pulley and the guide rope pulley. The base bracket is fixedly mounted with a three-phase asynchronous motor, a reducer, and a rope receiving drum. A belt pulley transmission structure is provided between the three-phase asynchronous motor and the reducer. The reducer and the rope receiving drum are connected by a coupling. Two sets of steel wire ropes are wound on the rope receiving drum, and the two sets of steel wire ropes are wound clockwise and clockwise respectively. One end of one set of steel wire ropes passes through the guide rope pulley and the fixed pulley and is connected to a roller at the bottom of the trailer body. One end of the other set of steel wire ropes passes through the guide rope pulley and the fixed pulley and is connected to another roller at the bottom of the trailer body.

[0012] Compared with related technologies, the self-spraying painting system for civil defense doors provided by this utility model has the following beneficial effects:

[0013] This utility model provides an automatic painting system controlled by an external PLC control box. An electric trailer mechanism transports the air-raid shelter door panels to the painting booth, where the system sprays the panels. During the painting process, an axial flow fan draws the fumes from the painting booth into a comprehensive dust filter chamber. The dust filter chamber has a spray structure for water adsorption and dust removal, and a baffle plate further enhances water-dust mixing. Adsorbed wastewater flows into a sedimentation and purification tank for settling. The filtered gas is discharged from the exhaust pipe with a top cap. This system makes full use of space for painting, using a closed-space painting process and water mist dust removal to remove water-based paint, effectively reducing environmental pollution. The automated control of the electrical circuits reduces operator error, resulting in uniform and efficient painting with significantly reduced waste. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a self-spraying paint system for civil defense door panels according to the present invention;

[0015] Figure 2 This is a top view of the interior of the dust filter chamber of this utility model;

[0016] Figure 3 This is a schematic diagram of the painting system of this utility model;

[0017] Figure 4 This is a side view of the painting system of this utility model;

[0018] Figure 5 This is an enlarged schematic diagram of point A of this utility model;

[0019] Figure 6 This is an enlarged schematic diagram of section B of the present invention;

[0020] Figure 7 This is a side view of the electric trailer mechanism of this utility model;

[0021] Figure 8 This is a top view of the electric trailer mechanism of this utility model;

[0022] Figure 9 This is a circuit diagram of a self-spraying paint system for civil defense doors according to this utility model;

[0023] Figure 10 This is a schematic diagram of the paint air pipe connection control system for the three sets of automatic spray guns of this utility model.

[0024] Numbered in the diagram: 1. Spray painting system; 11. Support frame; 12. Aluminum alloy crossbeam; 121. Rack and pinion one; 13. Longitudinal moving structure; 131. Gear motor; 132. Crossbeam motor connecting frame; 133. U-shaped guide rail; 134. Circular guide rail; 135. Drive gear one; 14. Fixing plate; 141. Automatic spray gun one; 15. Lateral moving mechanism; 151. Spray head positioning frame; 152. Automatic spray gun two; 153. Connecting slide rail; 154. Mounting slider; 155. Gear motor two; 156. Moving base; 157. 1. Drive gear II; 16. Aluminum alloy side beam; 161. Rack II; 2. Electric trailer mechanism; 21. Fixed pulley; 22. Trailer body; 23. Guide rope wheel; 24. Three-phase asynchronous motor; 241. Belt pulley transmission structure; 25. Reducer; 26. Base bracket; 27. Rope roller; 28. Steel wire rope; 3. Paint booth; 4. Large vacuum head; 5. Vacuum pipe; 6. Axial flow fan; 7. Exhaust pipe with top cap; 8. Spray structure; 9. Dust filter chamber; 91. Inspection door; 92. Baffle plate; 10. High-lift clean water pump. Detailed Implementation

[0025] Implementation examples, by Figure 1-2 As provided in Figure 9, a self-spraying painting system for civil defense doors includes a spray booth 3 and a dust filter chamber 9. One end of the dust filter chamber 9 is fixedly connected to an exhaust pipe including a top cap 7, and the other end is fixedly connected to an axial flow fan 6. A suction pipe 5 is fixedly connected between the axial flow fan 6 and the spray booth 3. One end of the suction pipe 5 extends into the interior of the spray booth 3 and is fixedly connected to a large suction head 4. A spraying system 1 is installed inside the spray booth 3. Two sets of electric trailer mechanisms 2 are symmetrically installed in the lower part of the spraying system 1. Civil defense door workpieces are placed between the two sets of electric trailer mechanisms 2 for spraying. An observation port is provided on the outside of the dust filter chamber 9, and a detection door 91 is installed in the observation port. A spray structure 8 is installed on one side of the interior of the dust filter chamber 9, and multiple baffles 92 are symmetrically and alternately fixed on the other side of the interior of the dust filter chamber 9. The spraying system 1, the electric trailer mechanism 2, the axial flow fan 6, and the spray structure 8 are electrically connected to an external PLC control box.

[0026] Specifically, the automatic painting system 1 is controlled by an external PLC control box. An electric trailer mechanism 2 transports the air-raid shelter door panels to the painting booth 3. The painting system 1 then applies the paint to the door panels. During the painting process, an axial flow fan 6 is activated, drawing the fumes from the painting booth into a comprehensive dust filter chamber 9. The comprehensive dust filter chamber 9 contains a spray structure 8 for water adsorption and dust removal. A baffle plate 92 further turbulences the airflow, improving water-dust mixing. Adsorbed wastewater flows into a sedimentation and purification tank for settling. The filtered gas is discharged through an exhaust pipe with a top cap 7. This system makes full use of space for painting, utilizing a closed-space painting environment and water mist dust removal to remove water-based paints, effectively reducing environmental pollution. The automated control of the electrical circuits reduces operator error, resulting in uniform and efficient painting with minimal waste.

[0027] In this embodiment, the spray structure 8 includes a high-lift clean water pump 10 and rectangular diversion pipes fixed at the upper and lower ends inside the dust filter chamber 9. Multiple spray heads are fixedly installed at opposite ends of the two rectangular diversion pipes. The two rectangular diversion pipes are connected to a water supply pipe. The water supply pipe passes through the dust filter chamber 9 and is connected to the outlet of the external high-lift clean water pump 10. The inlet of the high-lift clean water pump 10 is connected to the upper part of the external sedimentation and purification water tank through a pipe. A sewage pipe is installed at the bottom of the dust filter chamber 9 and is connected to the external sedimentation and purification water tank.

[0028] Specifically, the high-lift clean water pump 1010 draws clean water from the upper part of the sedimentation and purification water tank and delivers it to two rectangular diversion pipes in the dust filter chamber 99. Multiple spray heads in the two rectangular diversion pipes spray water to adsorb and remove dust from the incoming exhaust gas. In conjunction with the baffle plate 92, the water and dust are mixed and the adsorbed wastewater flows into the sedimentation and purification water tank for sedimentation.

[0029] In this embodiment, by Figure 7-8 The electric trailer mechanism 2 includes a fixed pulley 21 fixed outside the paint booth 3, a guide rope pulley 23 inside the paint booth 3, and a base bracket 26. The trailer body 22 is arranged between the fixed pulley 21 and the guide rope pulley 23. The base bracket 26 is fixedly mounted with a three-phase asynchronous motor 24, a reducer 25, and a rope receiving drum 27. The three-phase asynchronous motor 24 and the reducer 25 are connected by a belt pulley drive structure 241. The reducer 25 and the rope receiving drum 27 are connected by a coupling. Two sets of steel wire ropes 28 are wound on the rope receiving drum 27. The two sets of steel wire ropes 28 are wound clockwise and clockwise respectively. One end of one set of steel wire ropes 28 passes through the guide rope pulley 23 and the fixed pulley 21 and is connected to the bottom roller of the trailer body 22. The other end of the other set of steel wire ropes 28 passes through the guide rope pulley 23 and the fixed pulley 21 and is connected to another roller at the bottom of the trailer body 22.

[0030] Specifically, in the initial state, the two trailer bodies 22 are located outside the paint booth 3. The staff uses an overhead crane to move the air-raid shelter door panels onto the two trailer bodies 22. Then, the PLC control box controls the two three-phase asynchronous motors 24 to work synchronously. The three-phase asynchronous motors 24 drive the reducer 25 to rotate the rope drum 27. The two sets of steel wire ropes 28 are unwound and wound up respectively. With the help of the fixed pulley 21 and the guide rope wheel 23, the trailer bodies 22 are moved into the paint booth 3. At this time, the air-raid shelter door panels are located below the paint system 1.

[0031] In this embodiment, by Figure 3-6 The painting system 1 includes two sets of support frames 11 installed inside the paint booth 3. Each set of support frames 11 has an aluminum alloy side beam 16 fixed to its top. A support plate is fixed to the side end of the aluminum alloy side beam 16. A rack 161 is fixed to the top of the support plate. The aluminum alloy side beam 16 is driven by the rack 161 to install a longitudinal moving structure 13. An aluminum alloy crossbeam 12 is fixed between the two longitudinal moving structures 13. Fixing plates 14 are fixed to the opposite sides of the aluminum alloy crossbeam 12. Two automatic spray guns 141 are fixedly and symmetrically fixed at the bottom of the two fixing plates 14. A support plate is fixed to the back of the aluminum alloy crossbeam 12. A rack 121 is fixed to the top of the support plate. The aluminum alloy crossbeam 12 is driven by the rack 121 to install the aluminum alloy crossbeam 12.

[0032] The transverse moving mechanism 15 includes a movable base 156 and two sets of mounting sliders 154 fixedly installed on the top of the aluminum alloy beam 12. Two sets of connecting slide rails 153 are fixedly fixed inside the upper end of the movable base 156 and are slidably connected to the two sets of mounting sliders 154. A second reduction motor 155 is fixedly fixed on the top of the movable base 156. The output shaft of the second reduction motor 155 passes through the interior of the movable base 156 and is fixedly connected to a second drive gear 157 that meshes with a rack 121. A nozzle positioning frame 151 is fixedly fixed at the bottom of the movable base 156, and an automatic spray gun 152 is installed at the bottom of the nozzle positioning frame 151.

[0033] The longitudinal moving structure 13 includes a beam motor connecting frame 132 fixedly connected to the aluminum alloy beam 12 and a circular guide rail 134 fixed to the top of the aluminum alloy side beam 16. A U-shaped guide rail 133 is fixed to the inner side of the beam motor connecting frame 132 and slidably connected to the circular guide rail 134. A reduction motor 131 is fixed to the side end of the beam motor connecting frame 132. The output shaft of the reduction motor 131 passes through the beam motor connecting frame 132 and is fixed with a drive gear 135 that meshes with a rack 161 for transmission.

[0034] Specifically, the PLC control box controls two automatic spray guns, 141 and 152, to spray paint. The two automatic spray guns 141 and 152 are connected to the paint supply system via hoses to the paint air pipes. For specific connection details, please refer to [reference needed]. Figure 10As shown, two geared motors 131 are synchronously controlled to drive the drive gear 135 and rack 161, thereby moving the crossbeam motor connecting frame 132 on the aluminum alloy crossbeam 12. Stability is maintained by sliding between the U-shaped guide rail 133 and the circular guide rail 134. The aluminum alloy crossbeam 12 and the lateral moving mechanism 15 between the two crossbeam motor connecting frames 132 follow the movement. Then, the geared motor 155 is controlled to drive the drive gear 157 and rack 121, thereby moving the automatic spray gun 152 on the moving seat 156 and the nozzle positioning frame 151 left and right. Stability is maintained by sliding between the two sets of connecting slide rails 153 and the two sets of mounting sliders 154, thereby realizing the full painting of the air defense door panel.

[0035] Working principle:

[0036] Initially, the two trailer bodies 22 are located outside the paint booth 3. The staff uses an overhead crane to move the air defense door panel workpiece onto the two trailer bodies 22. Then, the PLC control box controls the two three-phase asynchronous motors 24 to work synchronously. The three-phase asynchronous motors 24 drive the reducer 25 to drive the rope drum 27 to rotate. The two sets of steel wire ropes 28 are unwound and wound up respectively. With the help of the fixed pulley 21 and the guide rope wheel 23, the trailer bodies 22 are moved to the paint booth 3. At this time, the air defense door panel workpiece is located below the paint system 1.

[0037] The PLC control box controls two automatic spray guns, 141 and 152, to spray paint. The two automatic spray guns 141 and 152 are connected to the paint supply system via hoses to the paint air hoses. For specific connection details, please refer to [reference needed]. Figure 10 As shown, the synchronous control of two reduction motors 131 drives the drive gear 135 and rack 161 to drive the crossbeam motor connecting frame 132 to move on the aluminum alloy crossbeam 12, and maintains stability by sliding on the U-shaped guide rail 133 and the circular guide rail 134. The aluminum alloy crossbeam 12 and the lateral movement mechanism 15 between the two crossbeam motor connecting frames 132 follow the movement.

[0038] Then, control the reduction motor 2 155 to drive the drive gear 2 157 and the rack 1 121 to drive the automatic spray gun 2 152 on the moving seat 156 and the nozzle positioning frame 151 to move left and right. It also cooperates with the two sets of connecting slide rails 153 and the two sets of mounting sliders 154 to maintain stability, thereby realizing the comprehensive painting work of the air defense door panel.

[0039] During the painting process, the axial flow fan 6 is turned on to draw the fumes from the painting chamber to the integrated dust filter chamber 9. The integrated dust filter chamber 9 has a spray structure 8 for water adsorption and dust removal. The high-lift clean water pump 1010 draws clean water from the upper part of the sedimentation and purification water tank and delivers it to two rectangular diversion pipes in the dust filter chamber 99. Multiple spray heads in the two rectangular diversion pipes spray water to adsorb and remove dust from the incoming exhaust gas. The system also works with the baffle plate 92 to turbulence and improve the mixing of water and dust. The adsorbed wastewater flows into the sedimentation and purification water tank for sedimentation, while the filtered gas is discharged outward from the tail exhaust pipe with the top cap 7. This system makes full use of space for painting, has a high degree of automation, requires no manual operation, and produces uniform and efficient painting, greatly reducing waste.

Claims

1. A self-spraying painting system for air-raid shelter doors, comprising a spray painting booth (3) and a dust filter chamber (9), characterized in that: The dust filter chamber (9) is fixedly connected to an exhaust pipe including a top cap (7) on one side, and to an axial flow fan (6) on the other side. A suction pipe (5) is fixedly connected between the axial flow fan (6) and the paint booth (3). One end of the suction pipe (5) extends into the paint booth (3) and is fixedly connected to a large suction head (4). A paint spraying system (1) is installed inside the paint booth (3). Two sets of electric trailer mechanisms (2) are symmetrically installed in the lower part of the paint spraying system (1). The workpiece of the air defense door is placed between the electric trailer mechanism (2) for spraying. An observation port is opened on the outside of the dust filter chamber (9), and a detection door (91) is installed in the observation port. A spray structure (8) is installed on one side of the dust filter chamber (9), and multiple baffles (92) are symmetrically and alternately fixed on the other side of the dust filter chamber (9). The painting system (1), the electric trailer mechanism (2), the axial flow fan (6), and the spray structure (8) are electrically connected to the external PLC control box.

2. The self-spraying painting system for civil defense doors according to claim 1, characterized in that, The spray structure (8) includes a high-lift clean water pump (10) and rectangular diversion pipes fixed at the upper and lower ends inside the dust filter chamber (9). Multiple spray heads are fixedly installed at opposite ends of the two rectangular diversion pipes. The two rectangular diversion pipes are connected to a water supply pipe. The water supply pipe passes through the dust filter chamber (9) and is connected to the outlet end of the external high-lift clean water pump (10). The inlet end of the high-lift clean water pump (10) is connected to the upper part of the external sedimentation and purification water tank through a pipe. A sewage pipe is installed at the bottom of the dust filter chamber (9) and is connected to the external sedimentation and purification water tank.

3. The self-spraying painting system for civil defense doors according to claim 1, characterized in that, The painting system (1) includes two sets of support frames (11) installed inside the paint booth (3). Each set of support frames (11) has an aluminum alloy side beam (16) fixed at the top. The side end of the aluminum alloy side beam (16) is fixed with a support plate. The top of the support plate is fixed with a rack (161). The aluminum alloy side beam (16) is driven by the rack (161) to install a longitudinal moving structure (13). An aluminum alloy crossbeam (12) is fixed between the two longitudinal moving structures (13). The opposite sides of the aluminum alloy crossbeam (12) are fixed with fixing plates (14). The bottom of the two fixing plates (14) is symmetrically and inclined to install two automatic spray guns (141). The back of the aluminum alloy crossbeam (12) is fixed with a support plate. The top of the support plate is fixed with a rack (121). The aluminum alloy crossbeam (12) is driven by the rack (121) to install the aluminum alloy crossbeam (12).

4. The self-spraying painting system for civil defense doors according to claim 1, characterized in that, It also includes a lateral moving mechanism (15), which includes a moving base (156) and two sets of mounting sliders (154) fixedly installed on the top of the aluminum alloy beam (12). The upper end of the moving base (156) is fixed with two sets of connecting slide rails (153) which are slidably connected to the two sets of mounting sliders (154). The top of the moving base (156) is fixed with a second reduction motor (155). The output shaft of the second reduction motor (155) passes through the inside of the moving base (156) and is fixed with a second drive gear (157) which meshes with a rack (121). The bottom of the moving base (156) is fixed with a nozzle positioning frame (151), and an automatic spray gun (152) is installed at the bottom of the nozzle positioning frame (151).

5. The self-spraying painting system for civil defense doors according to claim 3, characterized in that, The longitudinal moving structure (13) includes a beam motor connecting frame (132) fixedly connected to the aluminum alloy beam (12) and a circular guide rail (134) fixed on the top of the aluminum alloy side beam (16). A U-shaped guide rail (133) is fixed on the inner side of the beam motor connecting frame (132) and slidably connected to the circular guide rail (134). A reduction motor (131) is fixed on the side end of the beam motor connecting frame (132). The output shaft of the reduction motor (131) passes through the beam motor connecting frame (132) and is fixed with a drive gear (135) that meshes with a rack (161) for transmission.

6. The self-spraying painting system for air-raid shelter doors according to claim 1, characterized in that, The electric trailer mechanism (2) includes a fixed pulley (21) fixed outside the paint booth (3), a guide rope wheel (23) inside the paint booth (3), and a base bracket (26). The trailer body (22) is provided between the fixed pulley (21) and the guide rope wheel (23). The base bracket (26) is fixedly mounted with a three-phase asynchronous motor (24), a reducer (25), and a rope receiving drum (27). A belt pulley drive structure (241) is provided between the three-phase asynchronous motor (24) and the reducer (25) for transmission. The reducer (25) is connected to the rope drum (27) via a coupling. Two sets of wire ropes (28) are wound on the rope drum (27). The two sets of wire ropes (28) are wound clockwise and clockwise respectively. One end of one set of wire ropes (28) is connected to the bottom roller of the trailer body (22) from below the guide pulley (23) and the fixed pulley (21). The other set of wire ropes (28) is connected to another roller at the bottom of the trailer body (22) from above the guide pulley (23) and the fixed pulley (21).

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