A spraying mechanism for aluminum alloy doors and windows

Abstract

The application relates to a spraying mechanism for aluminum alloy doors and windows, which comprises a rack, a spraying device and a drying device arranged on the rack in sequence along the conveying direction of the aluminum alloy doors and windows. The spraying device comprises a coating platform and a coating nozzle. The coating platform is rotationally arranged on the rack by a rotating assembly and is used to drive the aluminum alloy doors and windows to overturn. The coating nozzle is arranged on the rack and located above the coating platform. A clamping assembly for clamping the aluminum alloy is arranged on the coating platform. The drying device is slidably arranged on the rack below the coating platform by a sliding assembly along the conveying direction of the aluminum alloy doors and windows. The rotating assembly drives the aluminum alloy doors and windows to overturn, and the sliding assembly drives the drying device to slide, so that one side of the aluminum alloy doors and windows is sprayed while the other side is dried. The aluminum alloy doors and windows sprayed are placed above the drying device to be dried, thereby reducing the possibility that the aluminum alloy doors and windows sprayed occupy the spraying position and reduce the spraying efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the field of spraying processing production technology, in particular to a spraying mechanism for aluminum alloy doors and windows. BACKGROUND

[0002] The aluminum alloy door and window refers to a door and window made of aluminum alloy extruded section material as frame, shaft and fan material, which is called aluminum alloy door and window, and is simply called aluminum door and window. Since the aluminum alloy is exposed to the air, a dense layer of aluminum oxide will be formed on the surface, therefore, the surface of the aluminum alloy door and window often needs to be sprayed.

[0003] When the aluminum alloy door and window is sprayed, the two surfaces often need to be sprayed. After the spraying of the two surfaces is completed, since the two surfaces are stained with paint, the aluminum alloy door and window often cannot be directly placed into a drying device for drying, and needs to continue to occupy the spraying position to wait for the paint to be completely dried before being discharged, thereby reducing the spraying efficiency of the aluminum alloy door and window. SUMMARY

[0004] In order to reduce the possibility of reducing the spraying efficiency of the aluminum alloy door and window, the application provides a spraying mechanism for aluminum alloy doors and windows.

[0005] The spraying mechanism for aluminum alloy doors and windows provided by the application adopts the following technical scheme:

[0006] A spraying mechanism for aluminum alloy doors and windows, comprising a rack, a spraying device and a drying device are sequentially arranged on the rack along the conveying direction of the aluminum alloy door and window, the spraying device comprises a paint platform and a paint spraying head, the paint platform is rotationally arranged on the rack by a rotating assembly and is used to drive the aluminum alloy door and window to overturn, the paint spraying head is arranged on the rack and located above the paint platform, a clamping assembly for clamping the aluminum alloy is arranged on the paint platform, and the drying device is slidably arranged on the rack below the paint platform by a sliding assembly along the conveying direction of the aluminum alloy door and window.

[0007] By adopting the above technical scheme, when the aluminum alloy door and window is sprayed, the aluminum alloy door and window is placed on the paint platform, the aluminum alloy door and window is fixed by the clamping assembly on the paint platform, the aluminum alloy door and window is sprayed by the paint spraying head above the paint platform, when the spraying of the surface of one side of the aluminum alloy door and window is completed, the paint platform and the aluminum alloy door and window are overturned by the rotating assembly, and the drying device is slid to below the paint platform by the sliding assembly, so that when the upper surface of the aluminum alloy is sprayed, the lower surface of one side is dried by the drying device, the possibility of reducing the spraying efficiency of the aluminum alloy door and window is reduced, and the aluminum alloy door and window needs to be discharged after waiting for drying after occupying the spraying position.

[0008] Optionally, the rack is provided with a blocking assembly for reducing the early drying of paint at the paint spraying head to reduce the spraying effect, the blocking assembly is located below the paint platform, and the blocking assembly comprises a lifting member and a blocking plate, the lifting member is arranged on the rack, and the blocking plate is arranged at the top end of the lifting member and is lifted under the driving of the lifting member.

[0009] By adopting the technical scheme, when the aluminum alloy door and window is installed on the paint platform and the clamping assembly, the lifting member drives the blocking plate to slide upward, thereby blocking the through slot in the middle of the aluminum alloy door and window, reducing the possibility of paint dripping from the middle part of the aluminum alloy door and window to the position below the paint platform, and when the aluminum alloy door and window completes the spraying of one side surface and is turned over, the blocking plate reduces the possibility that the hot air in the drying device moves upward in the drying process to cause the paint above to be dried without being contacted with the aluminum alloy door and window.

[0010] Optionally, a horizontal member for driving the lifting member to slide along the conveying direction of the aluminum alloy door and window is arranged between the rack and the lifting member, one end of the horizontal member close to the paint platform is provided with a supporting plate, and the lifting member is arranged on the supporting plate.

[0011] By adopting the technical scheme, when the paint platform needs to be turned over, the lifting member drives the blocking plate to slide downward, and the horizontal member drives the lifting member and the blocking plate to slide in the reverse direction along the conveying direction of the aluminum alloy door and window, thereby reducing the influence of the lifting member and the blocking plate on the turning over of the paint platform.

[0012] Optionally, an auxiliary assembly is arranged between the supporting plate and the blocking plate, the auxiliary assembly comprises an auxiliary blocking plate and an extension rod, one end of the extension rod is arranged on the supporting plate, the other end extends upward above the blocking plate, the extension rod is in sliding connection with the blocking plate, and the auxiliary blocking plate is hinged to the top end of the extension rod and extends along the side edge of the blocking plate.

[0013] By adopting the technical scheme, when the lifting member drives the blocking plate to rise, the extension rod is elongated between the blocking plate and the supporting plate, the extension rod is elongated to the longest when the blocking plate rises to the vertical side walls of the aluminum alloy door and window, with the rising of the blocking plate, the extension rod and the blocking plate slide relatively, so that the upper surface of the blocking plate is in contact with the bottom end of the auxiliary blocking plate, the hinged shaft between the auxiliary blocking plate and the top end of the extension rod rotates, the bottom end of the auxiliary blocking plate slides toward the aluminum alloy door and window, and the possibility that the hot air of the drying device blows upward to cause the paint to be dried before being sprayed is reduced.

[0014] Optionally, the drying device comprises a fan and a heating pipe distributed vertically upward, a mounting rack is arranged between the rack and the sliding assembly, the heating pipe is arranged on the mounting rack, and the fan is arranged on the mounting rack.

[0015] By adopting the technical scheme, when the one side of the aluminum alloy door and window is turned to the lower side under the driving of the rotating assembly, the heating pipe is heated, the fan is driven, the hot air near the heating pipe is blown by the fan, the hot air moves upward, the paint on the aluminum alloy door and window is dried, the drying speed of the paint is accelerated, and the possibility of reducing the spraying efficiency is reduced.

[0016] Optionally, the mounting plate is arranged on the rack, and the mounting plate and the rack are arranged to slide in the vertical direction through the lifting assembly.

[0017] By adopting the technical scheme, when the two side surfaces of the aluminum alloy door and window are completed spraying, the mounting plate and the mounting frame on the mounting plate are driven by the lifting assembly to slide upward on the rack, when the clamping assembly releases the aluminum alloy door and window, the falling height of the aluminum alloy door and window is reduced, and the possibility of damaging the aluminum alloy door and window is reduced.

[0018] Optionally, the mounting frame is provided with a baffle, the baffle is a mesh plate, the baffle is provided with a positioning assembly for positioning the aluminum alloy door and window, the positioning assembly comprises a positioning column and a transmission member for driving the positioning column to slide, the positioning column is provided with a plurality of positioning columns distributed at four corners of the baffle and vertically extending upward, the positioning column is arranged to slide in the direction perpendicular to the conveying direction of the aluminum alloy door and window, and the transmission member is arranged on the baffle.

[0019] By adopting the technical scheme, the baffle of the mesh plate facilitates the upward flow of the hot air at the lower end of the mounting frame to dry the paint, the baffle reduces the possibility of deflection of the aluminum alloy door and window on the baffle, and after the aluminum alloy door and window is completed spraying, the aluminum alloy door and window can be placed on the baffle and positioned by the positioning assembly, and the possibility of deviating from the drying center or even sliding off the baffle is reduced.

[0020] Optionally, the side of the baffle away from the paint spraying head is hinged to the mounting frame, and the mounting frame is provided with a first driving member for driving the baffle to rotate around the hinge shaft.

[0021] By adopting the technical scheme, when the paint on the two side surfaces of the aluminum alloy door and window is dried, the first driving member is started to drive the baffle to rotate around the hinge shaft, and the positioning of the aluminum alloy door and window by the positioning assembly is released, so that the aluminum alloy door and window slides in the inclined direction of the baffle, facilitating the discharging of the aluminum alloy door and window after the paint and drying are completed.

[0022] Optionally, the clamping assembly is provided with multiple sets and is distributed on the four corners of the coating platform, the clamping assembly comprises a clamping plate and a driving electric cylinder, the clamping plate is distributed with two blocks in the vertical direction, and the two clamping plates form a clamping opening for clamping the aluminum alloy door and window, each clamping plate is slidingly arranged on the coating platform, and the driving electric cylinder is arranged on the coating platform and drives the clamping plate to slide along the conveying direction of the aluminum alloy door and window so as to clamp and release the aluminum alloy door and window.

[0023] By adopting the above technical scheme, when the aluminum alloy door and window is placed on the coating platform, the driving cylinder located below drives the corresponding clamping plate to slide, so that the clamping plates distributed in the conveying direction of the aluminum alloy door and window are close to each other, the lower surface of the aluminum alloy door and window is supported on the clamping plate when it is placed on the coating platform, after the upper surface of the aluminum alloy door and window is sprayed by the coating spray head, the driving cylinder located above drives the clamping plate to extend to the upper surface of the aluminum alloy door and window, after the coating platform and the aluminum alloy door and window are turned over, at this time, the driving cylinder located above drives the clamping plate to move away from the upper surface of the aluminum alloy door and window, which is convenient for spraying the surface of the aluminum alloy door and window which has not been sprayed, the clamping on the side corresponding to the spraying side is separated from the surface of the aluminum alloy door and window during spraying, the shielding of the clamping plate to the sprayed surface is reduced, the sprayed coating is more fully covered on the aluminum alloy door and window, and the possibility of reducing the spraying effect of the aluminum alloy door and window is reduced.

[0024] Optionally, the rotating assembly comprises a rotating shaft, a transmission wheel set and a rotating piece, one end of the rotating shaft is arranged on the rack, the other end is fixedly arranged on the coating platform, the transmission wheel set is rotatably arranged on the rack, and the rotating piece is arranged on the rack and is in transmission connection with the rotating shaft through the transmission wheel set.

[0025] By adopting the above technical scheme, when the coating platform and the aluminum alloy door and window are turned over, the rotating piece drives the transmission wheel set to rotate, thereby driving the rotating shaft to rotate, the coating platform drives the aluminum alloy door and window to rotate with the rotating shaft, thereby driving the side surface of the aluminum alloy door and window which has not been sprayed to rotate to the upper side, which is convenient for the coating to spray and dry the lower surface at the same time.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. After the rotating assembly drives the coating platform and the aluminum alloy door and window to turn over, the drying device is moved to the lower side of the coating platform under the driving of the sliding assembly, so that the upper surface of the aluminum alloy is sprayed by the coating spray head and the lower surface is dried by the drying device, so that the spraying and drying time partially overlap, after the spraying of the two side surfaces of the aluminum alloy is completed, the aluminum alloy door and window is placed on the lower mounting rack and continuously dried, which reduces the possibility of reducing the spraying efficiency of the aluminum alloy door and window occupying the spraying position after the spraying is completed;

[0028] 2. The clamping plate between the aluminum alloy door and window and the paint spray head is driven away from the spray surface of the aluminum alloy door and window by the driving electric cylinder, so that the spray area of the surface of the aluminum alloy door and window is more complete, the possibility of the existence of unsprayed area on the surface of the aluminum alloy is reduced, and the possibility of reducing the spraying effect due to clamping is reduced;

[0029] 3. The blocking plate reduces the possibility of hot air in the drying device rising to make the paint dry in advance, and reduces the possibility of paint falling from the through slot in the middle of the aluminum alloy door and window to the rack below, and the auxiliary blocking plate reduces the possibility of hot air rising from the gap between the blocking plate and the aluminum alloy door and window. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0031] Figure 2 is a schematic diagram of the overall structure of the embodiment of the present application.

[0032] Figure 3 is Figure 2 is an enlarged view of B in FIG.

[0033] Figure 4 is Figure 1 is an enlarged view of A in FIG.

[0034] Figure 5 is Figure 2 is an enlarged view of C in FIG.

[0035] Figure 6 is a schematic diagram of the installation of the drying device and the positioning assembly in the embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 11, first sliding groove; 2, spraying device; 21, paint platform; 211, placing frame; 22, paint spray head; 23, clamping assembly; 231, driving electric cylinder; 232, clamping plate; 24, rotating assembly; 241, rotating piece; 242, transmission wheel set; 243, rotating shaft; 3, mounting plate; 31, second sliding groove; 32, mounting frame; 33, lifting assembly; 34, sliding assembly; 331, first driving motor; 332, lifting screw; 4, drying device; 41, fan; 42, heating pipe; 43, blocking plate; 44, positioning assembly; 441, positioning column; 442, second driving motor; 443, transmission rod; 444, positioning groove; 45, first driving piece; 5, blocking assembly; 51, lifting piece; 52, blocking plate; 6, horizontal piece; 61, support plate; 7, auxiliary assembly; 71, telescopic rod; 72, auxiliary blocking plate. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying Figures 1-6 The present application will be described in further detail.

[0038] The embodiment of the present application discloses a spraying mechanism of an aluminum alloy door and window. Figure 1 , comprising a rack 1, a spraying device 2 and a drying device 4 are sequentially installed on the rack 1 along the conveying direction of the aluminum alloy door and window.

[0039] Referring to Figure 1 and Figure 2 , the spraying device 2 comprises a coating platform 21 and a coating nozzle 22, the coating nozzle 22 is installed on the rack 1, a plurality of coating nozzles 22 are installed along the frame range of the aluminum alloy door and window, the coating platform 21 is installed on the rack 1 and located below the coating nozzle 22, a placing frame 211 for spraying and drying the aluminum alloy door and window is arranged at the center position of the coating platform 21, a clamping assembly 23 for clamping the aluminum alloy door and window is installed on the coating platform 21, the clamping assembly 23 is installed in four groups, each group of clamping assembly 23 comprises two clamping assemblies 23 distributed in the vertical direction, and the four groups of clamping assemblies 23 are distributed at the four corners of the coating platform 21.

[0040] Referring to Figure 2 and Figure 3 , the clamping assembly 23 comprises a clamping plate 232 and a driving electric cylinder 231, the clamping plate 232 is installed on the coating platform 21 and slides along the conveying direction of the aluminum alloy door and window, and the driving electric cylinder 231 is installed on the coating platform 21 and used to drive the clamping plate 232 to slide on the coating platform 21.

[0041] Referring to Figure 1 and Figure 4 , the coating platform 21 and the rack 1 are turned on the rack 1 through a rotating assembly 24, the rotating assembly 24 comprises a rotating shaft 243, a transmission wheel set 242 and a rotating part 241, one end of the rotating shaft 243 is rotatably installed on the rack 1, the other end is fixedly installed between the coating platform 21 and the rack 1, the axial direction of the rotating shaft 243 is perpendicular to the conveying direction of the aluminum alloy door and window and extends horizontally, the transmission wheel set 242 comprises a first transmission wheel and a second transmission wheel, the first transmission wheel is rotatably installed on the rack 1 and coaxially connected with the rotating shaft 243, the second transmission wheel is rotatably installed on the rack 1, the first transmission wheel and the second transmission wheel are both gear wheels and are in meshing transmission with each other, and the rotating part 241 comprises a first rotating motor, the first rotating motor is installed on the rack 1 and coaxially installed with the second transmission wheel.

[0042] Referring to Figure 2 and Figure 3When the aluminum alloy door and window is loaded on the spraying device 2, the lower clamping plate 232 on the coating platform 21 is driven by the driving cylinder 231 to move into the placing frame 211, and the four corners of the aluminum alloy door and window are supported and placed on the clamping plate 232. The coating head 22 is started to spray the upper surface of the aluminum alloy door and window. After the spraying is completed, the upper clamping plate 232 of the coating platform 21 is driven by the driving cylinder 231 to extend into the placing frame 211 and be located above the aluminum alloy door and window. The first rotating motor is started to drive the second transmission wheel to rotate, so as to drive the first transmission wheel and the rotating shaft 243 to rotate slowly. After the rotating shaft 243 drives the coating platform 21 to overturn, the driving cylinder 231 drives the upper clamping plate 232 to slide out of the placing frame 211. The coating head 22 sprays the surface of the side of the aluminum alloy door and window which has not been sprayed.

[0043] With reference to Figure 1 and Figure 2 The drying device 4 comprises a fan 41, a heating pipe 42 and a baffle 43 distributed in the vertical direction. The mounting plate 3 is slidably installed on the rack 1 in the vertical direction through the lifting assembly 3. The mounting plate 3 extends along the conveying direction of the aluminum alloy door and window. The lifting assembly 33 comprises a lifting screw 332 and a first driving motor 331. The first sliding groove 11 extending in the vertical direction is formed in the rack 1. The mounting plate 3 is slidably installed in the first sliding groove 11. The lifting screw 332 is rotatably installed on the rack 1 and located in the first sliding groove 11. The lifting screw 332 is threadedly connected with the mounting plate 3. The first driving motor 331 is installed on the rack 1. The output shaft of the first driving motor 331 is coaxially installed with the top end of the lifting screw 332. When the first driving motor 331 is started to drive the lifting screw 332 to rotate, the mounting plate 3 is lifted or lowered on the rack 1 along the first sliding groove 11.

[0044] With reference to Figure 2 and Figure 5, the rack 1 is provided with a blocking assembly 5 between the coating platform 21 and the mounting plate 3, the blocking assembly 5 reduces the hot air between the fan 41 and the heating pipe 42 to make the coating at the coating nozzle 22 dry in advance and reduce the possibility of reducing the coating effect, the blocking assembly 5 includes a lifting piece 51 and a blocking plate 52, the lifting piece 51 includes a lifting cylinder, a horizontal piece 6 and a support plate 61 are mounted between the lifting cylinder and the rack 1, the horizontal piece 6 includes a horizontal cylinder, the horizontal cylinder is mounted on the rack 1 and extends along the conveying direction of the aluminum alloy door and window, the support plate 61 is mounted on the end of the piston rod of the horizontal cylinder, the lifting cylinder is mounted on the support plate 61 and vertically extends, the blocking plate 52 is mounted on the top end of the piston rod of the lifting cylinder, the lifting cylinder is used to drive the blocking plate 52 to extend upward to the through slot in the aluminum alloy door and window before the coating nozzle 22 works, to reduce the possibility of reducing the coating effect caused by the coating in the coating nozzle 22 above drying in advance when drying below, and to reduce the possibility of the coating sprayed above falling on the rack 1, the mounting rack 32 and the mounting plate 3 below, the blocking plate 52 does not contact the inner wall of the through slot of the aluminum alloy door and window, to reduce the possibility of reducing the coating effect caused by the coating on the aluminum alloy door and window being scratched by the blocking plate 52.

[0045] With reference to Figure 2 And Figure 5 , the support plate 61 and the blocking plate 52 are provided with an auxiliary assembly 7 for reducing the hot air from the gap between the blocking plate 52 and the aluminum alloy door and window upward, the auxiliary assembly 7 includes an auxiliary blocking plate 72 and a telescopic rod 71, the telescopic rod 71 is mounted on the support plate 61 and has four and is distributed on the four vertical side edges of the support plate 61, the bottom end of the telescopic rod 71 is mounted on the support plate 61, and the top end extends upward above the blocking plate 52, the telescopic rod 71 is slidingly mounted between the blocking plate 52, the auxiliary blocking plate 72 is hingedly mounted on the top end of the telescopic rod 71, the auxiliary blocking plate 72 has four and respectively extends along the four side edges of the blocking plate 52, each auxiliary blocking plate 72 is inclined downward along the blocking plate 52 towards the aluminum alloy door and window, the hinged position of the telescopic rod 71 and the auxiliary blocking plate 72 is located at the upper end of the auxiliary blocking plate 72, when the lifting cylinder drives the blocking plate 52 to extend upward above the lower side surface of the aluminum alloy door and window, the telescopic rod 71 reaches the maximum length, when the blocking plate 52 rises again, the blocking plate 52 and the telescopic rod 71 relatively slide, so that the upper surface of the blocking plate 52 contacts the bottom end of the auxiliary blocking plate 72 and relatively rotates between the auxiliary blocking plate 72 and the telescopic rod 71, so that the bottom end of the auxiliary blocking plate 72 abuts on the vertical inner side wall of the aluminum alloy door and window, thereby reducing the possibility of hot air from the gap between the aluminum alloy door and window and the blocking plate 52 upward, and reducing the possibility of the blocking plate 52 scratching the coating.

[0046] With reference to Figure 5When the lifting cylinder drives the blocking plate 52 to slide downward, the relative sliding between the blocking plate 52 and the telescopic rod 71, the lower end of the auxiliary blocking plate 72 rotates along the hinge shaft between the telescopic rod 71 under the action of gravity, thereby loosening the abutment of the inner side wall of the aluminum alloy door and window, and reducing the possibility of the auxiliary blocking plate 72 scraping the paint when the blocking plate 52 slides downward.

[0047] With reference to Figure 2 , a second sliding groove 31 extending along the conveying direction of the aluminum alloy door and window is formed on the surface of the side of the mounting plate 3 facing away from the rack 1, and a mounting frame 32 is slidingly installed in the second sliding groove 31. The mounting frame 32 and the mounting plate 3 are connected by a sliding assembly, which drives the mounting frame 32 to extend along the conveying direction of the aluminum alloy. The fan 41, the heating pipe 42, and the blocking plate 43 are installed on the mounting frame 32 in sequence from bottom to top in the vertical direction. The heating pipe 42 is distributed with multiple pipes along the conveying direction of the aluminum alloy door and window. The blocking plate 43 is a mesh plate, and the blocking plate 43 is installed at the top end of the mounting frame 32.

[0048] With reference to Figure 2 and Figure 6 , the sliding assembly 34 includes a drive cylinder installed on the rack 1, and the piston rod of the drive cylinder is fixedly connected with the mounting frame 32. After the first rotating motor drives the paint platform 21 to overturn on the rack 1, the drive cylinder is started to drive the mounting frame 32 to slide on the mounting plate 3 to below the paint platform 21, and the blocking plate 52 and the auxiliary blocking plate 72 are located in the inner side wall of the aluminum alloy door and window. The fan 41 and the heating pipe 42 are started to make the hot air at the heating pipe 42 driven by the fan 41 flow upward, so that the paint on the surface of the overturned aluminum alloy door and window is dried. One side surface of the aluminum alloy is dried by the fan 41 and the heating pipe 42, and the other side surface is sprayed by the paint spray head 22, reducing the possibility of separate spraying and drying of the aluminum alloy door and window, thereby reducing the spraying efficiency.

[0049] With reference to Figure 1 and Figure 4 , after the aluminum alloy door and window are overturned by the first rotating motor and the rotating shaft 243, the drive cylinder 231 drives the clamping plate 232 located above the aluminum alloy door and window at this time to move away from the placing frame 211, so that the aluminum alloy door and window in the clamping range of the clamping plate 232 can be painted, reducing the possibility of the existence of an area without paint on the aluminum alloy door and window. After the spraying of both sides of the aluminum alloy door and window is completed, the first rotating motor is started in reverse to make the surface of the side of the aluminum alloy door and window without dried paint face one side of the blocking plate 43 and the heating pipe 42.

[0050] With reference to Figure 6The positioning assembly 44 is arranged on the baffle 43 and used for positioning the aluminum alloy door and window. The positioning assembly 44 comprises positioning columns 441 and transmission members used for driving the positioning columns 441 to slide and position along the direction perpendicular to the conveying direction of the aluminum alloy door and window. The positioning columns 441 are arranged on the baffle 43 and extend vertically upward. The positioning columns 441 are arranged on four corners of the baffle 43. The positioning columns 441 are provided with positioning grooves 444 towards the adjacent two side surfaces of the aluminum alloy door and window. The transmission members are arranged on the baffle 43 and drive the two positioning columns 441 to move away from or close to each other along the direction perpendicular to the conveying direction of the aluminum alloy door and window.

[0051] With reference to Figure 6 The transmission members comprise a transmission rod 443 and a second driving motor 442. The transmission rod 443 is rotatably arranged on the baffle 43 and extends along the direction perpendicular to the conveying direction of the aluminum alloy door and window. The transmission rod 443 is provided with two threads with opposite rotation directions. The two positioning columns 441 distributed along the length direction of the transmission rod 443 are threadedly connected to the two ends of the transmission rod 443. The second driving motor 442 is arranged on the baffle 43. The output shaft of the second driving motor 442 is threadedly connected with the transmission rod 443. When the two side surfaces of the aluminum alloy door and window are both sprayed with paint and the side without being dried faces the baffle 43, the first driving motor 331 is started. The mounting frame 32 and the baffle 43 are driven by the mounting plate 3 to extend upward. Then the driving cylinder 231 is started. The clamping plate 232 below the aluminum alloy door and window is driven to move away from the placing frame 211. Thus, the aluminum alloy door and window falls on the baffle 43 at a small height. The second driving motor 442 drives the transmission rod 443 to rotate. The positioning columns 441 position the aluminum alloy door and window on the baffle 43. The first driving motor 331 and the lifting screw 332 drive the mounting frame 32 to move downward. Thus, the aluminum alloy door and window without being sprayed is placed. At the same time, the aluminum alloy door and window after being sprayed is dried. The occupation of the spraying position by the aluminum alloy door and window after being sprayed is reduced. Thus, the spraying efficiency of the aluminum alloy door and window is improved.

[0052] With reference to Figure 6 The baffle 43 is hingedly arranged on the mounting frame 32 and away from the side of the aluminum alloy door and window facing the paint spraying head 22. The side of the mounting frame 32 away from the hinge shaft of the baffle 43 is provided with a first driving member 45 used for driving the baffle 43 to rotate. The first driving member 45 comprises a first electric cylinder. The mounting frame 32 is provided with an embedding groove extending along the vertical direction. The bottom end of the first electric cylinder is hingedly arranged on the bottom wall of the embedding groove. The top end of the electric push rod of the first electric cylinder is hingedly arranged on the lower surface of the baffle 43. When the aluminum alloy door and window is dried on the baffle 43, the second driving motor 442 drives the positioning columns 441 to move away from the aluminum alloy door and window. Thus, the aluminum alloy door and window is released. The first electric cylinder is started. The baffle 43 rotates along the hinge shaft between the baffle 43 and the mounting frame 32. The aluminum alloy door and window slides along the inclined direction of the baffle 43. Thus, the workers can unload the aluminum alloy door and window after being sprayed and dried.

[0053] The implementation principle of the spraying mechanism of the aluminum alloy door and window in the embodiment of the application is as follows:

[0054] The driving cylinder 231 drives the clamping plate 232 located below to extend into the placing frame 211 of the coating platform 21, and then the aluminum alloy door and window is placed on the clamping plate 232 at the four corners of the coating platform 21. The lifting cylinder and the horizontal cylinder are started to drive the blocking plate 52 and the auxiliary blocking plate 72 to slide to the middle part of the aluminum alloy door and window, and make the auxiliary blocking plate 72 abut against the inner side wall of the aluminum alloy door and window. The coating spray head 22 is started to spray the upper surface of the aluminum alloy door and window at this time, and the spraying of the one side surface is completed.

[0055] The driving cylinder 231 located above at this time is started to make the clamping plate 232 above at this time extend into the placing frame 211 on the coating platform 21 and be located on the upper surface of the aluminum alloy door and window. The lifting cylinder and the horizontal cylinder are used to drive the blocking plate 52 and the auxiliary blocking plate 72 to move away from the overturning range of the coating platform 21. The first rotating motor is started to drive the second transmission wheel and the first transmission wheel to rotate. The first transmission wheel drives the rotating shaft 243 to rotate, thereby driving the aluminum alloy door and window to overturn on the rack 1, so that the side surface coated with paint is located above. The blocking plate 52 and the auxiliary blocking plate 72 still extend into the inner side wall of the aluminum alloy door and window. The driving cylinder located above at this time is started to drive the clamping plate 232 to slide out of the placing frame 211, and the upper surface of the aluminum alloy door and window at this time is coated with paint.

[0056] The driving cylinder is started to drive the mounting bracket 32 to slide on the mounting plate 3 to be below the coating platform 21. The fan 41 and the heating pipe 42 are started to make one side of the aluminum alloy door and window be coated with paint at the same time, and the other side surface is dried, thereby reducing the possibility that the aluminum alloy door and window after spraying occupies the spraying platform to be dried and reduces the spraying efficiency.

[0057] The clamping plate 232 located above the aluminum alloy door and window slides out of the placing frame 211 under the driving of the driving cylinder 231 during spraying, thereby reducing the area of the surface of the aluminum alloy that is not sprayed due to the blocking of the clamping plate 232, and reducing the spraying quality of the aluminum alloy door and window.

[0058] When the two sides of the aluminum alloy doors and windows are completed, the second drive motor 442 is started to drive the coating platform 21 to reverse, so that the aluminum alloy doors and windows on the side which is not dried are downward, and then the first drive motor 331 is started to drive the lifting screw 332 to rotate on the rack 1, so as to drive the mounting plate 3 and the mounting frame 32 to slide upward, so that the aluminum alloy doors and windows which are completed are dropped on the baffle 43 at a small height, and then the first drive motor 331 is started to drive the lifting screw 332 to rotate reversely, so as to drive the aluminum alloy doors and windows which are completed to slide downward, at the same time, the fan 41 and the heating pipe 42 dry the aluminum alloy doors and windows on the side which is not dried, and the coating platform 21 can install new aluminum alloy doors and windows which are not coated, so as to spray a new round.

[0059] The aluminum alloy doors and windows which are dropped on the baffle 43 are started to drive the transmission rod 443 on the baffle 43 to rotate, so that the positioning columns 441 on the transmission rod 443 are close to each other, so as to position the aluminum alloy doors and windows on the baffle 43, and reduce the possibility of the aluminum alloy doors and windows from the baffle 43 during sliding.

[0060] After the aluminum alloy doors and windows are dried on the baffle 43, the mounting frame 32 and the aluminum alloy doors and windows above the baffle 43 are driven by the driving cylinder to tilt downward away from the horizontal cylinder, the second drive motor 442 is started to drive the positioning columns 441 away from the aluminum alloy doors and windows, so as to release the positioning of the aluminum alloy doors and windows, and then the first cylinder is started to drive the baffle 43 to rotate along the hinge shaft on the mounting frame 32, so that the aluminum alloy doors and windows slide away from the baffle 43 along the tilt direction of the baffle 43, so as to facilitate the workers to unload.

[0061] The above is the preferred embodiment of the present application, which does not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A spraying mechanism for aluminum alloy doors and windows, comprising a frame (1), characterized in that: A spraying device (2) and a drying device (4) are sequentially arranged on the frame (1) along the conveying direction of the aluminum alloy doors and windows. The spraying device (2) includes a paint platform (21) and a paint nozzle (22). The paint platform (21) is rotatably mounted on the frame (1) via a rotating component (24) and is used to drive the aluminum alloy doors and windows to rotate. The paint nozzle (22) is mounted on the frame (1) and located above the paint platform (21). A clamping component (23) for clamping aluminum alloy is provided on the paint platform (21). The drying device (4) is slidably mounted on the frame (1) along the conveying direction of the aluminum alloy doors and windows via a sliding component (34) and located below the paint platform (21). A blocking component (5) is provided on the frame (1) to reduce the premature drying of the paint at the paint nozzle (22) under the action of the drying device (4), thereby reducing the spraying effect. The blocking component (5) is located below the paint platform (21) and includes a lifting component (51) for... The lifting member (51) is mounted on the frame (1), and the baffle plate (52) is mounted on the top of the lifting member (51) and moves up and down under the drive of the lifting member (51). A horizontal member (6) is provided between the frame (1) and the lifting member (51) for driving the lifting member (51) to slide along the conveying direction of the aluminum alloy doors and windows. A support plate (61) is provided at one end of the horizontal member (6) near the coating platform (21). The lifting member (51) is mounted on the support plate (61). On the support plate (61) and the blocking plate (52), an auxiliary component (7) is provided between them. The auxiliary component (7) includes an auxiliary baffle (72) and a telescopic rod (71). One end of the telescopic rod (71) is provided on the support plate (61), and the other end extends upward to the top of the blocking plate (52). The telescopic rod (71) and the blocking plate (52) are slidably connected. The auxiliary baffle (72) is hinged to the top of the telescopic rod (71) and extends along the side of the blocking plate (52).

2. The spraying mechanism for aluminum alloy doors and windows according to claim 1, characterized in that: The drying device (4) includes a fan (41) and a heating tube (42) distributed vertically upward. A mounting bracket (32) is provided between the frame (1) and the sliding assembly (34). The heating tube (42) is mounted on the mounting bracket (32), and the fan (41) is mounted on the mounting bracket (32).

3. The spraying mechanism for aluminum alloy doors and windows according to claim 2, characterized in that: The frame (1) is provided with an installation plate (3), and the installation plate (3) and the frame (1) are slidably arranged in the vertical direction through a lifting component (33). The mounting bracket (32) is slidably arranged on the installation plate (3) in the direction of conveying aluminum alloy doors and windows.

4. The spraying mechanism for aluminum alloy doors and windows according to claim 3, characterized in that: The mounting bracket (32) is provided with a baffle (43), which is a mesh plate. The baffle (43) is provided with a positioning component (44) for positioning aluminum alloy doors and windows. The positioning component (44) includes a positioning post (441) and a transmission component for driving the positioning post (441) to move. The positioning post (441) is provided with multiple posts and is distributed at the four corners of the baffle (43) and extends vertically upward. The positioning post (441) is slidably arranged along the direction perpendicular to the conveying direction of the aluminum alloy doors and windows. The transmission component is provided on the baffle (43).

5. The spraying mechanism for aluminum alloy doors and windows according to claim 4, characterized in that: The side of the baffle (43) away from the paint nozzle (22) is hinged to the mounting frame (32), and the mounting frame (32) is provided with a first driving member (45) for driving the baffle (43) to rotate around the hinge axis.

6. The spraying mechanism for aluminum alloy doors and windows according to claim 1, characterized in that: The clamping assembly (23) is provided in multiple sets and distributed at the four corners of the coating platform (21). The clamping assembly (23) includes clamping plates (232) and driving electric cylinders (231). There are two clamping plates (232) distributed in the vertical direction. The two clamping plates (232) form a clamping opening for clamping aluminum alloy doors and windows. Each clamping plate (232) is slidably disposed on the coating platform (21). The driving electric cylinder (231) is disposed on the coating platform (21) and drives the clamping plate (232) to slide along the aluminum alloy door and window conveying direction to clamp and release the aluminum alloy doors and windows.

7. The spraying mechanism for aluminum alloy doors and windows according to claim 1, characterized in that: The rotating assembly (24) includes a rotating shaft (243), a transmission wheel set (242), and a rotating component (241). One end of the rotating shaft (243) is rotatably mounted on the frame (1), and the other end is fixedly mounted on the coating platform (21). The transmission wheel set (242) is rotatably mounted on the frame (1), and the rotating component (241) is mounted on the frame (1) and is connected to the rotating shaft (243) via the transmission wheel set (242).

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