Wooden door coating and drying line

Abstract

A wooden door coating and drying line comprises a control device, a door leaf feeding area, a door leaf dust removal room, a first 3D visual scanning area, a first spraying area, a first drying and leveling area, a first UV curing area, a second 3D visual scanning area, a second spraying area, a second drying and leveling area, a second UV curing area and a door leaf discharging area, a first door leaf reversing mechanism is arranged between the first spraying area and the first drying leveling area, a first door leaf reversing mechanism is arranged between the first drying leveling area and the first UV curing area, and a second door leaf reversing mechanism is arranged between the second spraying area and the second drying leveling area, and a second door leaf reversing mechanism is arranged between the second drying leveling area and the second UV curing area. The first drying and leveling area and the second drying and leveling area comprise drying rooms and hot air circulating air ducts arranged on the drying rooms, and the hot air circulating air ducts communicate with the interiors of the drying rooms. According to the utility model, the door leaf dust removal room is arranged, and the door body is sprayed after dust removal, so that dust is prevented from being adhered to the door body when the door body is sprayed.

Description

Technical Field

[0001] The utility model relates to the technical field of door leaf painting, in particular to a wooden door painting drying line. Background Art

[0002] Chinese patent document No. CN112517357A disclosed a door body spraying process on March 19, 2021, which includes the following steps: loading, 3D scanning, spraying trajectory planning, robot spraying, roller coating, paint curing, polishing and dust removal; by 3D scanning the door body to obtain the door body model, the paint trajectory planning for the lines and grooves in the door body model can achieve precise spraying, reduce material waste, reduce pollution, and at the same time, the spraying pattern can be designed on the computer to increase the diversity of the door body; and the spraying of the door body is automated, which reduces manual intervention, reduces the workers' paint inhalation, reduces the physical harm to the staff, realizes intelligence, assembly line work, and improves production efficiency.

[0003] This structure does not remove dust from the door body before spraying, so paint and dust will adhere to the door body. The leveling and drying efficiency of the door body after spraying is low, and the door body cannot be dried in all directions.

[0004] Therefore, further improvements are necessary. Utility Model Content

[0005] The purpose of the utility model is to provide a wooden door coating drying line with simple structure, good spraying uniformity, high drying efficiency, good drying effect, high conveying efficiency, high curing efficiency, wide application range and strong practicality, so as to overcome the shortcomings of the prior art.

[0006] A wooden door painting drying line designed for this purpose includes a control device, which is characterized in that it also includes a door leaf loading area, a door leaf dust removal room, a first 3D visual scanning area, a first spraying area, a first drying and leveling area, a first UV curing area, a second 3D visual scanning area, a second spraying area, a second drying and leveling area, a second UV curing area and a door leaf unloading area that are connected in sequence, a first door leaf reversing mechanism is arranged between the first spraying area and the first drying and leveling area, and between the first drying and leveling area and the first UV curing area, a second door leaf reversing mechanism is arranged between the second spraying area and the second drying and leveling area, and between the second drying and leveling area and the second UV curing area; the first drying and leveling area and the second drying and leveling area include a drying room and a hot air circulation duct arranged on the drying room, and the hot air circulation duct is connected to the interior of the drying room.

[0007] The upper and lower surfaces of the corresponding door leaf are provided with electrostatic absorbers and several nozzles for blowing away dust in the dust removal room of the door leaf. A dust removal exhaust fan is also provided in the dust removal room of the door leaf. The electrostatic absorber and the nozzle are respectively arranged opposite to the dust removal exhaust fan. The door leaf passes through the electrostatic absorber during the transportation process. The dust on the door leaf moves toward the nozzle under the traction of the electrostatic absorber. Several nozzles blow the dust toward the dust removal exhaust fan. After the dust removal exhaust fan absorbs the dust, it discharges the dust out of the door leaf dust removal room through the exhaust duct. The upper and lower surfaces of the corresponding door leaf are provided with electrostatic absorbers, several nozzles for blowing away dust, and a dust removal exhaust fan. The dust on the door leaf is pulled to several nozzles through the electrostatic absorber. The nozzles blow the dust on the door leaf to the air inlet of the dust removal exhaust fan. The exhaust fan extracts the dust and discharges it out of the door leaf dust removal room, effectively removing the dust on the upper and lower surfaces of the door leaf. Moreover, the door leaf is dusted while being transported, so that the transportation and dust removal are carried out simultaneously.

[0008] The first spraying area and the second spraying area both include a robot front or back color correction spraying area and an artificial color complement spraying area. A six-axis robot and a spray gun arranged on the six-axis robot are arranged on the robot front or back color correction spraying area. The robot sprays the surface of the door leaf according to the spraying trajectory of the door leaf generated by the control program. If the spraying operator finds that the spraying on the surface or side of the door leaf is uneven, the spraying operator sprays the door leaf in the artificial color complement spraying area. Because the nozzle of the robot spray gun is sometimes blocked, resulting in uneven spraying, by setting up the artificial color complement spraying area, the robot can manually complement the uneven spraying of the door leaf.

[0009] Several layers of drying conveying tracks are arranged in the drying room. The door leaves enter the drying conveying tracks after being reversed by the door leaf reversing mechanism. The hot air generated by the hot air circulation duct enters the drying room to dry the door leaves. The drying room effectively utilizes the hot air by setting up the hot air circulation duct, thereby improving the drying efficiency and reducing the heat energy loss. The hot air circulation duct is provided with a temperature sensor, a pressure sensor and an exhaust fan. The temperature sensor detects the gas temperature of the duct in real time, and the spraying operator sets the door leaf drying temperature according to the door leaf. If the temperature detected by the temperature sensor is higher or lower than the set door leaf drying temperature, the controller controls the operation of the heater in the hot air circulation duct to effectively control the drying temperature. When the pressure sensor detects that the pressure value of the hot air circulation duct is greater than the set value, the exhaust fan starts to discharge the excess gas in the hot air circulation duct to effectively control the air pressure value in the drying room.

[0010] A horizontally arranged top air duct is provided on the top of the drying room, and side air ducts extending into the drying room are respectively provided at the left and right ends of the top air duct. After one end of the side air duct extends into the drying room, one end of the side air duct is respectively extended in the left and right directions of the inner side of the drying room, and the side air duct is provided with air outlets in the extending direction, and a heater is provided on the top air duct; the air ducts are respectively provided with air inlets and air outlets, and fans are provided at the air inlets and air outlets. External gas passes through the air inlet of the top air duct and is heated by the heater, then enters the drying room through one side air duct, flows out through the air outlet, passes through the air outlet to flow to the air outlet of the other side air duct, enters the other side air duct and then re-enters the top air duct, and then enters the drying room from the one side air duct to form a hot air circulation air duct.

[0011] A plurality of hot air circulation ducts are provided, and two adjacent hot air circulation ducts are arranged in opposite directions to each other.

[0012] The first door leaf reversing mechanism and the second door leaf reversing mechanism include a reversing chassis, a first motor, a gear transmission assembly, a rotating seat and a rotating bracket. The first motor is fixed on the reversing chassis. The first motor is rotatably connected to the rotating seat through the gear transmission assembly. The rotating seat is rotatably set on the reversing chassis. The rotating seat is cooperatively connected with the rotating bracket. A movable frame for conveying door leaves is provided on the door leaf coating drying and curing equipment. The door leaves are supported on the movable frame. The movable frame is on the conveying line. When the movable frame moves to the rotating bracket, the rotating bracket drives the movable frame to rotate 90 degrees.

[0013] The first door leaf reversing mechanism and the second door leaf reversing mechanism also include a second motor, a synchronous transmission rod, a chain and synchronous belt transmission assembly, a conveying frame, a plurality of conveying rollers rotatably arranged on the conveying frame, and a lifting cylinder. The second motor is connected to one end of the synchronous transmission rod, the synchronous transmission rod is connected to the conveying roller through the chain and synchronous belt transmission assembly, and the lifting cylinder is connected to the conveying frame.

[0014] A door leaf lifting mechanism is provided between the drying room and the door leaf reversing mechanism, and the door leaf lifting mechanism is arranged on the circulating transmission line of the door leaf spraying; the door leaf lifting mechanism includes a lifting fixed frame, a third motor, a sprocket transmission assembly, a lifting bracket, a fourth motor, a synchronous belt assembly, and a translation bracket. The third motor is fixed on the lifting fixed frame, and the lifting bracket is arranged on the lifting fixed frame for vertical movement. The third motor is connected to the lifting bracket through the sprocket transmission assembly, and the fourth motor is fixed on the lifting bracket. The translation bracket is arranged on the lifting bracket for horizontal movement. The fourth motor is connected to the translation bracket through the synchronous belt assembly, and the translation bracket is connected to the conveying frame. The door leaf lifting mechanism transmits the door leaf equidistantly to each layer of the drying conveying track in the drying room according to the set beat.

[0015] The first UV curing area and the second UV curing area include a UV curing room, in which a reciprocating bracket is provided, on which a number of UV surface lamps are provided, and on which two UV side lamps are provided at intervals on the left and right, and the UV side lamps are provided on the bracket for reciprocating and lifting movements. When the door leaf enters the UV curing room, the bracket drives a number of UV surface lamps and UV side lamps to follow the movement of the door leaf, and the light source emitted by the UV surface lamp is irradiated onto the surface of the door leaf, and the light source emitted by the UV side lamp is irradiated onto the side of the door leaf; the distance between the two UV side lamps is adjusted according to the size of the door leaf through the reciprocating movement of the two UV side lamps, and the height distance between the two UV side lamps and the door leaf is adjusted through the lifting movement of the two UV side lamps.

[0016] The controller transmits the operating information of each mechanism to the user's terminal device through the network to monitor the equipment operation status and statistical production data in real time.

[0017] The controller's backend cloud is equipped with a spraying knowledge base and a spraying process library. Users can access and obtain information from the spraying knowledge base and / or the spraying process library through the cloud platform to interact with data in real time.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. By setting up a door leaf dust removal room, the door body is sprayed after dust removal, so as to avoid dust adhering to the door body during spraying, avoid poor expected spraying effect, and thus improve the uniformity of spraying the door body.

[0020] 2. The upper and lower surfaces of the door leaf are respectively equipped with an electrostatic absorber, several nozzles for blowing away dust, and a dust removal exhaust fan. The dust on the door leaf is pulled to several nozzles through the electrostatic absorber. The nozzles blow the dust on the door leaf to the air inlet of the dust removal exhaust fan. The exhaust fan extracts the dust and discharges it out of the door leaf dust removal room, effectively removing the dust on the upper and lower surfaces of the door leaf. The door leaf is conveyed and dusted at the same time, achieving the simultaneous conveying and dust removal.

[0021] 3. Because the nozzle of the robot spray gun is sometimes clogged, resulting in uneven spraying, an artificial color-filling spraying area is set up so that the robot can manually fill in the unevenly sprayed areas on the door leaf.

[0022] 4. The drying room is equipped with hot air circulation ducts to effectively utilize hot air, improve drying efficiency, reduce heat energy loss, and achieve high door leaf dryness. Hot air circulates on the multi-layer drying conveyor track, heating to promote cross-linking reaction, continuously drying the door leaf, volatilizing the coating and leveling it online, and drying the door leaf surface in all directions, which can improve the drying effect.

[0023] 5. Before the door leaves enter the drying tunnel, the door leaves are switched from longitudinal to transverse through the door leaf reversing mechanism, and the drying conveying track is set with 3 layers, so that the drying conveying track can convey more door leaves, and the drying room can accommodate more door leaves, so that more door leaves can be dried at the same time, improving the drying efficiency of the door leaves, and there is no need to enlarge the drying tunnel, saving space and reducing costs.

[0024] 6. In the UV curing room, the door leaf moves with the UV surface lamp and UV side lamp, so that the paint on the surface and left and right sides of the door leaf can be cured at the same time, which greatly improves the curing efficiency of the door leaf. In addition, the distance between the two UV side lamps can be automatically adjusted to suit the curing operation of door leaves of different widths, with high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of a wooden door coating drying line according to one embodiment of the utility model.

[0026] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of a door leaf dust removal room in one embodiment of the utility model.

[0027] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of a drying room according to one embodiment of the utility model.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the door leaf reversing mechanism according to one embodiment of the utility model.

[0029] Figure 5 It is a three-dimensional structural schematic diagram of another orientation of the door leaf reversing mechanism of one embodiment of the utility model.

[0030] Figure 6 It is a structural schematic diagram of the door leaf reversing mechanism, the door leaf lifting mechanism, and the drying conveying track in sequence for conveying and connecting in one embodiment of the utility model.

[0031] Figure 7 This is a schematic diagram of the internal structure of a UV curing room according to an embodiment of the present utility model.

[0032] Figure 8 The figure is a schematic diagram of the UV lamp arrangement structure of a UV curing room according to an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0034] See also Figure 1-Figure 8The wooden door coating drying line comprises a control device, a door leaf loading area 1, a door leaf dust removal room 10, a first 3D visual scanning area 2, a first spraying area 3, a first drying and leveling area 4, a first UV curing area 5, a second 3D visual scanning area 13, a second spraying area 6, a second drying and leveling area 7, a second UV curing area 8 and a door leaf unloading area 9, wherein a first door leaf reversing mechanism 11 is arranged between the first spraying area 3 and the first drying and leveling area 4 and between the first drying and leveling area 4 and the first UV curing area 5, a second door leaf reversing mechanism 12 is arranged between the second spraying area 6 and the second drying and leveling area 7 and between the second drying and leveling area 7 and the second UV curing area 8; the first drying and leveling area 4 and the second drying and leveling area 7 comprise a drying room 17 and a hot air circulation duct 19 arranged on the drying room 17, and the hot air circulation duct 19 is connected to the interior of the drying room 17.

[0035] The door leaf is conveyed from the door leaf loading area 1 to the door leaf dust removal room 10 for dust removal. The door leaf then passes through the first 3D visual scanning area 2. After the shape and size of the door leaf are identified, the shape and size information of the door leaf is fed back to the controller. The control program of the controller automatically generates the door leaf spraying trajectory according to the shape and size of the door leaf. The door leaf enters the first spraying area 3 to spray the surrounding sides and one surface of the door leaf. After the door leaf spraying is completed, it is reversed by the first door leaf reversing mechanism 11 to replace the longitudinal door leaf with a transverse door leaf. The transverse door leaf is conveyed to the first drying and leveling area 4 for drying. The dried door leaf is then The door leaf is reversed through the first door leaf reversing mechanism 11 and conveyed into the first UV curing zone 5; a flipping mechanism for flipping the door leaf and a second 3D visual scanning zone 13 are provided between the first UV curing zone 5 and the second spraying zone 6; after leaving the first UV curing zone 5, the door leaf is flipped through the flipping mechanism to switch the door leaf to another surface, and the door leaf passes through the second 3D visual scanning zone 13, the second spraying zone 6, the second door leaf reversing mechanism 12, the second drying and leveling zone 7, the second door leaf reversing mechanism 12 and the second UV curing zone 8 in sequence. After the door leaf is sprayed, it is conveyed and unloaded through the door leaf unloading zone 9.

[0036] The door leaf dust removal room 10 is provided with an electrostatic adsorber 14 and a plurality of nozzles 15 for blowing away dust on the upper and lower surfaces of the corresponding door leaf, respectively. A dust removal exhaust fan 16 is also provided in the door leaf dust removal room 10. The electrostatic adsorber 14 and the nozzles 15 are respectively arranged opposite to the dust removal exhaust fan 16. The door leaf passes through the electrostatic adsorber 14 during the transportation process. The dust on the door leaf moves toward the nozzles 15 under the traction of the electrostatic adsorber 14. The plurality of nozzles 15 blow the dust toward the dust removal exhaust fan 16. The dust removal exhaust fan 16 absorbs the dust and discharges the dust out of the door leaf dust removal room 10 through the exhaust duct.

[0037] The first spraying area 3 and the second spraying area 6 both include a robot front or back color repair spraying area and an artificial color supplement spraying area. The robot front or back color repair spraying area is provided with a six-axis robot and a spray gun provided on the six-axis robot, and the 3D visual scanning area is provided with a 3D scanner. The robot sprays the surface of the door leaf according to the spraying trajectory of the door leaf generated by the control program. If the spraying operator finds that the spraying on the surface or side of the door leaf is uneven, the spraying operator sprays the door leaf in the artificial color supplement spraying area.

[0038] The turning mechanism includes a turning frame, a transmission gear set, etc. The specific structure can be found in Chinese patent document No. CN201410457Y, which discloses a workpiece turning mechanism that does not require a clamping device, which will not be described in detail here.

[0039] Several layers of drying conveying tracks 18 are provided in the drying room 17, and two adjacent layers of drying conveying tracks 18 are arranged at intervals up and down. The door leaves enter the drying conveying tracks 18 after being reversed by the door leaf reversing mechanism, and the hot air generated by the hot air circulation duct 19 enters the drying room 17 to dry the door leaves. The hot air circulation duct 19 is provided with a temperature sensor, a pressure sensor and an exhaust fan. The temperature sensor detects the gas temperature of the duct in real time, and the spraying operator sets the door leaf drying temperature according to the door leaf. If the temperature detected by the temperature sensor is higher or lower than the set door leaf drying temperature, the controller controls the operation of the heater 20 in the hot air circulation duct; when the pressure sensor detects that the pressure value of the hot air circulation duct 19 is greater than the set value, the exhaust fan starts to discharge the excess gas in the hot air circulation duct 19.

[0040] A horizontally arranged top air duct 25 is provided on the top of the drying room 17, and side air ducts 26 extending into the drying room 17 are respectively provided at the left and right ends of the top air duct 25. After one end of the side air duct 26 extends into the drying room 17, one end of the side air duct 26 is respectively extended in the left and right directions of the inner side of the drying room 17, and the side air duct 26 is provided with an air outlet in the extending direction, and a heater 20 is provided on the top air duct 25; the air duct 25 is respectively provided with an air inlet and an air outlet, and a fan is provided at the air inlet and the air outlet. The external air passes through the air inlet of the top air duct 25, is heated by the heater 20, and then enters the drying room 17 through the one side air duct 26, and flows out through the air outlet, passes through the air outlet to flow to the air outlet of the other side air duct 26, enters the other side air duct 26, and then re-enters the top air duct 25, and then enters the drying room from the one side air duct 26 to form a hot air circulation air duct 19.

[0041] A plurality of hot air circulation ducts 19 are provided, and two adjacent hot air circulation ducts 19 are arranged in opposite directions to each other, so that the surface of the door leaf can be dried in all directions.

[0042] The first door leaf reversing mechanism 11 and the second door leaf reversing mechanism 12 include a reversing chassis 27, a first motor 28, a gear transmission assembly 29, a rotating seat 30 and a rotating bracket 31. The first motor 28 is fixed on the reversing chassis 27. The first motor 28 is rotatably connected to the rotating seat 30 through the gear transmission assembly 29. The rotating seat 30 is rotatably arranged on the reversing chassis 27. The rotating seat 30 is cooperatively connected with the rotating bracket 31. The door leaf coating drying and curing equipment is provided with a movable frame for conveying the door leaf. The door leaf is supported on the movable frame. The movable frame is on the conveying line. When the movable frame moves to the rotating bracket 31, the rotating bracket 31 drives the movable frame to rotate 90 degrees. When the movable frame moves to the rotating bracket 31, the rotating bracket 31 drives the movable frame to rotate 90 degrees. The first motor 28 drives the rotating seat 30 to rotate through the reducer and the gear transmission assembly 29 (large gear and small gear), and the rotating seat 30 drives the rotating bracket 31 to rotate. The bottom of the rotating seat 30 is rotatably connected to the large gear, the small gear is transmission-connected to the reducer and the first motor 28, and the large gear is meshed with the small gear.

[0043] Before the door leaf enters the door leaf lifting mechanism 21 , the door leaf reversing mechanism rotates the longitudinal door leaf to the transverse direction so that the door leaf enters the drying room 17 transversely.

[0044] The first door leaf reversing mechanism 11 and the second door leaf reversing mechanism 12 also include a second motor 32, a synchronous transmission rod 33, a chain synchronous belt transmission assembly 34, a conveying frame 35, a plurality of conveying rollers 36 rotatably arranged on the conveying frame 35, and a lifting cylinder 37. The second motor 32 is connected to one end of the synchronous transmission rod 33 in transmission connection, the synchronous transmission rod 33 is connected to the conveying roller 36 through the chain synchronous belt transmission assembly 34, and the lifting cylinder 37 is connected to the conveying frame 35 in transmission connection. When the door leaf reversing mechanism conveys the door leaf, the lifting cylinder 37 drives the conveying frame 35 to rise, so that the conveying roller 36 contacts with the movable frame, and the second motor 32 drives the conveying roller 36 to rotate through the synchronous transmission rod 33 and the chain synchronous belt transmission assembly 34 in turn. When the conveying roller 36 rotates, it drives the movable frame to move, so that the movable frame 7 enters the door leaf lifting mechanism 21.

[0045] A door leaf lifting mechanism 21 is provided between the drying room 17 and the door leaf reversing mechanism. The door leaf lifting mechanism 21 is arranged on the circulating transmission line for spraying the door leaves. The door leaf lifting mechanism 21 transmits the door leaves to each layer of the drying conveying track in the drying room at an equidistant manner according to a set rhythm. The door leaf lifting mechanism (21) comprises a lifting fixed frame 38, a third motor 39, a sprocket transmission assembly 40, a lifting bracket 41, a fourth motor 42, a synchronous belt assembly 43, and a translation bracket 44. The third motor 39 is fixed on the lifting fixed frame 38. The lifting bracket 41 is movably arranged on the lifting fixed frame 38. The third motor 39 is connected to the lifting bracket 41 through the sprocket transmission assembly 40. The fourth motor 42 is fixed on the lifting bracket 41. The translation bracket 44 is horizontally movably arranged on the lifting bracket 41. The fourth motor 42 is connected to the translation bracket 44 through the synchronous belt assembly 43. The translation bracket 44 is connected to the conveying frame 35. When the movable frame 7 moves to the translation bracket 44, the translation bracket 44 drives the movable frame 7 to rise and fall or move horizontally, the third motor 39 cooperates with the worm gear reducer, the fourth motor 4 cooperates with the reducer, the sprocket drive assembly 40 is a combination of a sprocket and a belt, the third motor 39 drives the lifting bracket 41 to rise or fall through the sprocket drive assembly 40, the synchronous belt assembly 43 is a combination of a synchronous wheel and a synchronous belt, the fourth motor 42 drives the translation bracket 44 to translate through the synchronous belt assembly 43, the translation bracket 44 transports the door leaf to the conveying device (drying conveying track 18) of the drying room 17, or the translation bracket 44 transports the door leaf to the door leaf reversing mechanism.

[0046] The drying conveying track 18 may adopt a conveying mechanism such as sprocket conveying.

[0047] The controller transmits the operating information of each mechanism to the user's terminal device through the network to monitor the equipment operation status and statistical production data in real time.

[0048] The controller's backend cloud is equipped with a spraying knowledge base and a spraying process library. Users can access and obtain information from the spraying knowledge base and / or the spraying process library through the cloud platform to interact with data in real time.

[0049] The first UV curing area 5 and the second UV curing area 8 include a UV curing room, in which a reciprocating bracket 22 is provided, on which a plurality of UV surface lamps 23 are provided, and on which two UV side lamps 24 are provided at intervals on the left and right. The UV side lamps 24 are provided on the bracket 22 for reciprocating and lifting movements. When the door leaf enters the UV curing room, the bracket 22 drives a plurality of UV surface lamps 23 and UV side lamps 24 to follow the movement of the door leaf, and the light source emitted by the UV surface lamp 23 is irradiated onto the surface of the door leaf, and the light source emitted by the UV side lamp 24 is irradiated onto the side of the door leaf; the spacing between the two UV side lamps 24 is adjusted according to the size of the door leaf through the reciprocating movement of the two UV side lamps 24, and the height spacing between the two UV side lamps 24 and the door leaf is adjusted through the lifting movement of the two UV side lamps 24.

[0050] See also Figure 7 , Figure 8 The UV curing room is provided with two lifting frames for lifting door leaves which are arranged at a front-to-back interval. The lifting frames can adopt a lifting structure coordinated with a cylinder, a bracket, etc.

[0051] See also Figure 7 , Figure 8 The bracket 22 is reciprocatingly arranged on the fixed frame 46 through structures such as sliders and slide grooves. A synchronous transmission mechanism (motor, reducer, driven wheel, driving wheel, synchronous rod, conveyor belt, etc.) is provided at one end of the fixed frame 46. The conveyor belt is connected to the slider to drive the bracket 22 to reciprocate and be arranged on the fixed frame 46.

[0052] The two UV side lamps 24 can be connected to the corresponding UV side lamps through a motor, a screw rod, and a nut fixing seat matched with the screw rod. The motor drives the screw rod to rotate, and the nut fixing seat drives the UV side lamp to move left and right to adjust the distance between the two UV side lamps 24.

[0053] The two UV side lamps 24 are lifted and lowered electrically or pneumatically, which is common knowledge to those skilled in the art and will not be described in detail here.

[0054] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wooden door coating drying line, including a control device, characterized in that: The invention also comprises a door leaf loading area (1), a first 3D visual scanning area (2), a first spraying area (3), a first drying and leveling area (4), a first UV curing area (5), a second 3D visual scanning area (13), a second spraying area (6), a second drying and leveling area (7), a second UV curing area (8) and a door leaf unloading area (9) which are connected in sequence. A first door leaf reversing mechanism (11) is arranged between the first spraying area (3) and the first drying and leveling area (4), between the first drying and leveling area (4) and the first UV curing area (5), and a second door leaf reversing mechanism (11) is arranged between the second spraying area (6) and the second drying and leveling area (7), and between the second drying and leveling area (8). A second door reversing mechanism (12) is provided between the drying leveling zone (7) and the second UV curing zone (8); the first drying leveling zone (4) and the second drying leveling zone (7) comprise a drying room (17) and a hot air circulation duct (19) provided on the drying room (17), the hot air circulation duct (19) being connected to the interior of the drying room (17); a top duct (25) is provided on the top of the drying room (17) and a side duct (26) extending into the drying room (17) is provided at the left and right ends of the top duct (25), respectively; a fan is provided on the top duct (25) to form the hot air circulation duct (19).

2. The wooden door painting drying line according to claim 1 is characterized by: The invention also comprises a door leaf dust removal room (10), wherein the door leaf dust removal room (10) is provided with an electrostatic adsorbent (14) and a plurality of nozzles (15) for blowing away dust respectively on the upper and lower surfaces of the corresponding door leaf, and a dust removal exhaust fan (16) is also provided in the door leaf dust removal room (10), wherein the electrostatic adsorbent (14) and the nozzles (15) are respectively arranged opposite to the dust removal exhaust fan (16).

3. The wooden door painting drying line according to claim 1 is characterized by: The first spraying area (3) and the second spraying area (6) both include a robot front or back color correction spraying area and an artificial color supplement spraying area. The robot front or back color correction spraying area is provided with a six-axis robot and a spray gun provided on the six-axis robot.

4. The wooden door painting drying line according to claim 1 is characterized by: A plurality of layers of drying conveying tracks (18) are arranged in the drying room (17). The door leaves enter the drying conveying tracks (18) after being reversed by the door leaf reversing mechanism. A temperature sensor, a pressure sensor and an exhaust fan are arranged in the hot air circulation duct (19).

5. The wooden door painting drying line according to claim 1 is characterized by: After one end of the side air duct (26) extends into the drying room (17), one end of the side air duct (26) is extended in the left and right directions of the inside of the drying room (17), and the side air duct (26) is provided with an air outlet in the direction of the extension, and a heater (20) is provided on the top air duct (25); the top air duct (25) is provided with an air inlet and an air outlet, and fans are provided at the air inlet and the air outlet. External air passes through the air inlet of the top air duct (25), is heated by the heater (20), enters the drying room (17) through the side air duct (26), flows out through the air outlet, passes through the air outlet to the air outlet of the other side air duct (26), enters the other side air duct (26), and then re-enters the top air duct (25), and then enters the drying room from the side air duct (26), so as to form a hot air circulation air duct (19).

6. The wooden door painting drying line according to claim 1, characterized in that: A plurality of hot air circulation ducts (19) are provided, and two adjacent hot air circulation ducts (19) are arranged in opposite directions to each other.

7. The wooden door painting drying line according to claim 1 is characterized by: The first door leaf reversing mechanism (11) and the second door leaf reversing mechanism (12) comprise a reversing chassis (27), a first motor (28), a gear transmission assembly (29), a rotating seat (30) and a rotating bracket (31); the first motor (28) is fixed on the reversing chassis (27); the first motor (28) is rotatably connected to the rotating seat (30) via the gear transmission assembly (29); the rotating seat (30) is rotatably arranged on the reversing chassis (27); the rotating seat (30) is cooperatively connected to the rotating bracket (31); a movable frame for conveying door leaves is arranged on the door leaf coating drying and curing equipment; the door leaves are supported on the movable frame; the movable frame is on a conveying line; when the movable frame moves to the rotating bracket (31), the rotating bracket (31) drives the movable frame to rotate 90 degrees.

8. The wooden door painting drying line according to claim 7, characterized in that: The first door leaf reversing mechanism (11) and the second door leaf reversing mechanism (12) further comprise a second motor (32), a synchronous transmission rod (33), a chain synchronous belt transmission assembly (34), a conveying frame (35), a plurality of conveying rollers (36) rotatably arranged on the conveying frame (35), and a lifting cylinder (37); the second motor (32) is drivingly connected to one end of the synchronous transmission rod (33); the synchronous transmission rod (33) is drivingly connected to the conveying rollers (36) via the chain synchronous belt transmission assembly (34); and the lifting cylinder (37) is drivingly connected to the conveying frame (35).

9. The wooden door painting drying line according to claim 4, characterized in that: A door leaf lifting mechanism (21) is provided between the drying room (17) and the door leaf reversing mechanism. The door leaf lifting mechanism (21) is arranged on a circulating transmission line for spraying door leaves. The door leaf lifting mechanism (21) comprises a lifting fixed frame (38), a third motor (39), a sprocket transmission assembly (40), a lifting bracket (41), a fourth motor (42), a synchronous belt assembly (43), and a translation bracket (44). The third motor (39) is fixed on the lifting fixed frame (38). The lifting bracket (41) is movably arranged on the lifting fixed frame (38). The third motor (39) is connected to the lifting bracket (41) through the sprocket transmission assembly (40). The fourth motor (42) is fixed on the lifting bracket (41). The translation bracket (44) is movably arranged on the lifting bracket (41) horizontally. The fourth motor (42) is connected to the translation bracket (44) through the synchronous belt assembly (43). The translation bracket (44) is connected to the conveying frame (35).

10. The wooden door painting drying line according to claim 1, characterized in that: The first UV curing area (5) and the second UV curing area (8) comprise a UV curing room, wherein a reciprocating support (22) is provided in the UV curing room, a plurality of UV surface lamps (23) are provided on the support (22), and two UV side lamps (24) are provided on the support (22) at intervals on the left and right, and the UV side lamps (24) are provided on the support (22) for reciprocating and lifting movements.

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