A paint spraying device for aluminum alloy doors and windows

Abstract

The application discloses a paint spraying device for aluminum alloy doors and windows, which comprises a rack, a spraying station arranged on the rack, a conveying assembly comprising two roller shafts, transmission rollers fixed to the two ends of the roller shafts and a conveying belt in transmission connection with the two transmission rollers on the same side, a driving assembly for driving any one of the two roller shafts to rotate, a spraying assembly for spraying paint on the aluminum alloy doors and windows moving to the spraying station, a rotating supporting mechanism comprising a plurality of supporting assemblies and a rotating transmission assembly, the plurality of supporting assemblies being evenly and intervally arranged on the outer surface of the conveying belt, and the rotating transmission assembly being arranged at the spraying station and used for driving the aluminum alloy doors and windows on the supporting assemblies moving to the spraying station to rotate. The paint spraying device can realize the paint spraying operation on the aluminum alloy doors and windows in the rotating state, realize the all-round paint spraying on the aluminum alloy doors and windows without changing the spraying angle of the spraying assembly, make the paint spraying more uniform and the paint spraying effect better.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy door and window processing technology, specifically to a painting device for aluminum alloy doors and windows. Background Technology

[0002] Aluminum alloy doors and windows refer to doors and windows made using extruded aluminum alloy profiles for the frame, mullions, and sashes. They are lightweight, sturdy, durable, and offer superior airtightness, watertightness, and sound insulation compared to wooden and steel doors and windows. They are also fire-retardant, resistant to deformation, strong, easy to install, and crafted with meticulous attention to detail. As a new generation of door and window materials, they have a promising future. Furthermore, during the production process, a rust-preventive paint is applied to the surface of the aluminum alloy doors and windows using a spraying device, further enhancing their lifespan and aesthetics.

[0003] In related technologies, utility model application CN202321203177.2 discloses a painting device for aluminum alloy doors and windows, including a mounting frame. A collection frame is placed at the bottom inner part of the mounting frame. A limiting plate is fixedly connected between opposite inner sidewalls of the mounting frame. A sliding rod is slidably connected through the limiting plate. An mounting component is fixedly installed at the top of the sliding rod. The bottom of the mounting component abuts against the top of the limiting plate. A fixing mechanism is provided at the top of the mounting component. Multiple evenly arranged triangular plates are fixedly installed on the inner sidewall of the mounting frame. A telescopic mechanism is provided on the inner sidewall of the mounting frame. The sliding rod extends into the telescopic mechanism and is slidably connected to it. While this structure can shake off excess paint from aluminum alloy doors and windows during painting, preventing excess paint from solidifying at the bottom and ensuring the aesthetics of the painted aluminum alloy doors and windows, it still has the problem of not being able to paint all directions during the painting process because the aluminum alloy doors and windows are in a fixed state. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the object of the present invention is to provide a painting device for aluminum alloy doors and windows, which can perform painting operations on aluminum alloy doors and windows in a rotating state, achieving all-around painting of aluminum alloy doors and windows without changing the spraying angle of the spraying components, resulting in more uniform painting and better painting effect.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] The first aspect of the present invention provides a painting apparatus for aluminum alloy doors and windows, comprising:

[0007] The frame is equipped with a spraying station.

[0008] The conveying assembly includes two rollers arranged side by side at both ends of the frame, drive rollers fixed to both ends of the rollers, and a conveyor belt that drives the two drive rollers on the same side.

[0009] A drive assembly, mounted on the frame, is used to drive either of the two rollers to rotate;

[0010] A spraying assembly is mounted on the frame and located at the spraying station; the spraying assembly is used to spray paint aluminum alloy doors and windows that have been moved to the spraying station.

[0011] A rotating support mechanism includes a plurality of support components and a rotating transmission component for accommodating the aluminum alloy doors and windows respectively; the plurality of support components are evenly and spaced apart on the outer surface of the conveyor belt; the rotating transmission component is mounted on the frame and located at the spraying station, and the rotating transmission component is used to drive the aluminum alloy doors and windows on the support components that have moved to the spraying station to rotate.

[0012] In a first aspect of the invention, as an optional embodiment, the support assembly includes two support members, a connecting rod, and a rotating member;

[0013] Two support members are respectively fixed to the outer surfaces of the two conveyor belts; each support member includes a fixed outer ring fixedly installed on the outer surface of the conveyor belt and a rotating inner ring rotatably installed on the inner wall of the fixed outer ring; a first positioning groove is formed on the inner wall of the rotating inner ring.

[0014] The rotating component is located between two supporting components. The rotating component includes an annular rotating wheel, the two sides of which are fixedly connected to the inner rotating rings of the two supporting components through the connecting rods respectively. A second positioning groove is formed on the inner wall of the annular rotating wheel. The aluminum alloy door and window are adapted to be snapped into the first positioning groove and the second positioning groove. A ring of meshing teeth is provided on the outer wall of the annular rotating wheel.

[0015] The rotary transmission assembly includes a track plate and a rack. The track plate is mounted on the frame and located between the two conveyor belts. The rack is located on the upper surface of the track plate at the spraying station. When the annular wheel moves to the position of the rack, its meshing teeth can mesh with the rack.

[0016] In a first aspect of the present invention, as an optional embodiment, the number of the first positioning grooves is multiple, and the multiple first positioning grooves are symmetrically distributed along the diameter direction of the rotating inner ring; the number of the second positioning grooves is multiple, and the multiple second positioning grooves are symmetrically distributed along the diameter direction of the annular rotating wheel; the width of both the first positioning groove and the second positioning groove is greater than the thickness of the aluminum alloy door and window.

[0017] In a first aspect of the invention, as an optional embodiment, a convex ring is fixed to the outer circumferential surface of the rotating inner ring, a limiting groove adapted to the convex ring is provided on the inner wall of the fixed outer ring, and a ball is provided between the convex ring and the limiting groove.

[0018] In a first aspect of the invention, as an optional embodiment, a spraying box is further included, the spraying box being mounted on the frame and located at the spraying station, the spraying box having an inlet and an outlet along the conveying direction of the conveyor belt, and both the inlet and outlet being equipped with curtains.

[0019] In a first aspect of the invention, as an optional embodiment, two protrusions and recesses are further included, each of which is integrally formed on two opposing inner walls of the spray box; the protrusions and recesses are located at positions corresponding to the rack portion, and the height of the protrusions and recesses corresponds to the support assembly; both protrusions and recesses are sinusoidal waveforms, and the peak of one side of the protrusion and recesses is opposite to the trough of the other side of the protrusion and recesses, thereby forming a curved channel between the two protrusions and recesses that allows aluminum alloy doors and windows to pass through.

[0020] In a first aspect of the invention, as an optional embodiment, limit rings are provided on both sides of the annular rotary wheel; eccentric wheels are provided on both sides of the track plate near the discharge port, and a transmission structure is provided between the eccentric wheels and one of the roller shafts; the limit rings can pass through the eccentric wheels as the conveyor belt moves.

[0021] In a first aspect of the invention, as an optional embodiment, the transmission structure includes a rotating shaft rotatably mounted on a track plate, an eccentric wheel eccentrically fixed at both ends of the rotating shaft; a driven wheel is fixed on the rotating shaft, a driving wheel is fixed on the roller shaft at a position corresponding to the driven wheel, and a transmission bar is drivingly connected between the driving wheel and the driven wheel.

[0022] In a first aspect of the invention, as an optional embodiment, the spraying assembly includes a storage tank located on one side of the curtain, a liquid pump installed outside the storage tank, a spraying pipe fixed inside the top surface of the spraying tank, a nozzle installed at the lower end of the spraying pipe, and a main pipe connecting the spraying pipe and the liquid pump.

[0023] In a first aspect of the invention, as an optional embodiment, an air suction mechanism communicating with the interior of the spray box is installed on one side below the spray box, and a guide pipe is installed on the side of the air suction mechanism away from the spray box.

[0024] The present invention has the following beneficial effects:

[0025] 1. According to the painting device of the present invention, when aluminum alloy doors and windows need to be painted, the aluminum alloy doors and windows to be processed are first placed in several support components. The drive component drives one of the two rollers to rotate, thereby driving the conveyor belt to move several support components along the conveying direction. The rotation transmission component drives the aluminum alloy doors and windows on the support components that have moved to the painting station to rotate. Then, the painting component performs painting operations on the rotating aluminum alloy doors and windows. In this way, the painting device can perform painting operations on the rotating aluminum alloy doors and windows. Without changing the spraying angle of the painting component, it can achieve all-round painting of the aluminum alloy doors and windows, making the painting more uniform and the painting effect better.

[0026] 2. The paint spraying device support assembly of this embodiment includes two support members, a connecting rod, and a rotating member. When the annular rotating wheel moves to the position of the rack, the meshing teeth can mesh with the rack. Since the rack is fixed, while the conveyor belt continues to drive the support members and the rotating member to move, the meshing teeth drive the annular rotating wheel to rotate. The annular rotating wheel drives the inner rings of the two support members to rotate through the connecting rod, thereby rotating the inner rings and causing the aluminum alloy doors and windows inside to rotate. When the meshing teeth disengage from the rack, the aluminum alloy doors and windows can stop rotating. Thus, on the one hand, without adding an additional power mechanism, the aluminum alloy doors and windows can move and rotate simultaneously under the drive of the conveyor belt, which has the advantages of compact structure, low operating cost, and small space occupation. On the other hand, the rotating member is located between the two support members, and the aluminum alloy doors and windows are engaged in the first positioning groove and the second positioning groove, which can realize the rapid installation and positioning of the aluminum alloy doors and windows, and improve the installation stability of the aluminum alloy doors and windows, making it less likely for the aluminum alloy doors and windows to shake or detach during movement and rotation.

[0027] 3. The present invention also includes two concave and convex portions, both of which are sinusoidal waveforms. The peak of one concave and convex portion is opposite to the trough of the other concave and convex portion, forming a curved channel between the two concave and convex portions that allows aluminum alloy doors and windows to pass through. When the aluminum alloy door and window passes through the concave and convex portions, the peak pushes one end of the aluminum alloy door and window, and the other end reaches the trough. This allows the aluminum alloy door and window to reciprocate axially within the rotating inner ring, ensuring that different positions of the aluminum alloy door and window are located within the first positioning groove. This prevents the first positioning groove from obstructing a certain position of the aluminum alloy door and window, which could cause spraying gaps. This results in more comprehensive spraying coverage and further improves the spraying effect.

[0028] 4. The present invention is equipped with an eccentric wheel and limit rings that can pass through the eccentric wheel on both sides of the gear. When the limit rings pass through the rotating eccentric wheel, the eccentric wheel can drive the limit rings to vibrate, thereby causing the aluminum alloy doors and windows to vibrate and shake off the excess paint on the aluminum alloy doors and windows.

[0029] 5. The present invention provides a transmission structure between the roller shaft and the eccentric wheel, so that when the roller shaft rotates, the rotation of the shaft can be achieved through the action of the driving wheel, the driven wheel and the transmission bar, thereby achieving the rotation of the eccentric wheel, avoiding the need to equip the eccentric wheel with a new drive and saving resources.

[0030] 6. The present invention is equipped with an air suction mechanism, which can suck away excess spray paint when it is working. The guide pipe is connected to the recycling box, thereby realizing the recycling of excess spray paint and avoiding the situation where a lot of spray paint waste in the workshop affects the health of the workers. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0032] Figure 1 This is a schematic diagram of the overall structure of the painting device of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the present invention without the spray box installed;

[0034] Figure 3 This is a schematic diagram of the structure of a single support component of the present invention mounted on a conveying component;

[0035] Figure 4 This is a connection diagram of the support member and the rotating member of the present invention;

[0036] Figure 5 This is a schematic diagram of the structure of the rotating component of the present invention;

[0037] Figure 6 This is an exploded view of the support components of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the spraying assembly of the present invention;

[0039] Figure 8 This is a schematic diagram of the spray box structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the top section of the spray box of the present invention;

[0041] Figure 10 This is a schematic diagram of the installation of the eccentric wheel of the present invention;

[0042] Figure 11 This is a schematic diagram of the transmission structure of the present invention.

[0043] In the diagram, 1. Frame; 2. Drive assembly; 3. Curtain; 4. Support component; 41. Fixed outer ring; 411. Limiting groove; 42. First positioning groove; 43. Rotating inner ring; 431. Conveyor ring; 5. Conveying assembly; 51. Conveyor belt; 52. Roller shaft; 53. Drive roller; 6. Rotating component; 61. Circular rotating wheel; 62. Limiting ring; 63. Second positioning groove; 7. Spraying assembly; 71. Storage tank; 72. Liquid pump; 73. Main pipeline; 74. Spraying pipeline; 75. Nozzle; 8. Spraying box; 9. Track plate; 91. Rack section; 10. Connecting rod; 11. Suction mechanism; 111. Guide pipe; 12. Eccentric wheel; 13. Transmission structure; 131. Driven wheel; 132. Rotating shaft; 133. Transmission bar; 134. Driving wheel; 14. Concave and convex parts. Detailed Implementation

[0044] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0045] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0048] Please refer to Figure 1-11 As shown, this embodiment provides a painting device for aluminum alloy doors and windows, including: a frame, a conveying assembly 5, a driving assembly 2, a spraying assembly 7, and a rotating support mechanism;

[0049] Specifically, a spraying station is provided on frame 1;

[0050] Specifically, the conveying assembly 5 includes two rollers 52 arranged side by side at both ends of the frame 1, a drive roller 53 fixed at both ends of the rollers 52, and a conveyor belt 51 that drives the two drive rollers 53 on the same side.

[0051] Specifically, the drive assembly 2 is mounted on the frame 1 and is used to drive either of the two rollers 52 to rotate; thus, when one of the rollers 52 rotates, the two conveyor belts 51 can rotate synchronously. In another embodiment, the drive roller 53 and the conveyor belt 51 can be a drive sprocket and a drive chain.

[0052] Specifically, the spraying assembly 7 is mounted on the frame 1 and located at the spraying station; the spraying assembly 7 is used to spray paint the aluminum alloy doors and windows that have been moved to the spraying station.

[0053] Specifically, the rotating support mechanism includes several support components and a rotating transmission component for accommodating aluminum alloy doors and windows respectively; the several support components are evenly installed on the outer surface of the conveyor belt 51 at intervals; the rotating transmission component is installed on the frame 1 and located at the spraying station, and the rotating transmission component is used to drive the aluminum alloy doors and windows on the support components that have moved to the spraying station to rotate.

[0054] Based on the above structure, according to the painting device of the present invention, when aluminum alloy doors and windows need to be painted, the aluminum alloy doors and windows to be processed are first placed in several support components. The drive component 2 drives any one of the two rollers 52 to rotate, thereby driving the conveyor belt 51 to move several support components along the conveying direction. The rotation transmission component drives the aluminum alloy doors and windows on the support components that have moved to the painting station to rotate. Then, the painting component 7 performs painting operations on the rotating aluminum alloy doors and windows. In this way, the painting device can perform painting operations on the rotating aluminum alloy doors and windows. Without changing the spraying angle of the painting component 7, it can achieve all-round painting of the aluminum alloy doors and windows, making the painting more uniform and the painting effect better.

[0055] In a preferred embodiment of the present invention, the support assembly includes two support members 4, a connecting rod 10, and a rotating member;

[0056] Two support members 4 are respectively fixed on the outer surfaces of two conveyor belts 51; the support member 4 includes a fixed outer ring 41 fixedly installed on the outer surface of the conveyor belt 51 and a rotating inner ring 43 rotatably installed on the inner wall of the fixed outer ring 41; a first positioning groove 42 is formed on the inner wall of the rotating inner ring 43.

[0057] The rotating component is located between the two support components 4. The rotating component includes an annular rotating wheel 61, whose two sides are fixedly connected to the rotating inner rings 43 of the two support components 4 by connecting rods 10 respectively. A second positioning groove 63 is formed on the inner wall of the annular rotating wheel 61. The aluminum alloy door and window are suitable for being snapped into the first positioning groove 42 and the second positioning groove 63. A ring of meshing teeth is provided on the outer wall of the annular rotating wheel 61.

[0058] The rotary transmission assembly includes a track plate 9 and a rack 91. The track plate 9 is mounted on the frame 1 and located between two conveyor belts 51. The upper surface of the track plate 9 is provided with the rack 91 at the spraying station position. When the annular wheel 61 moves to the position of the rack 91, its meshing teeth can mesh with the rack 91.

[0059] Based on the above structure, when the annular wheel 61 moves to the position of the rack 91, the meshing teeth can mesh with the rack 91. Since the rack 91 is fixed, while the conveyor belt 51 continues to drive the support member 4 and the rotating member to move, the meshing teeth drive the annular wheel 61 to rotate. The annular wheel 61 drives the inner rings 43 of the two support members 4 to rotate through the connecting rod 10. In turn, rotating the inner rings 43 can drive the aluminum alloy doors and windows inside to rotate. When the meshing teeth disengage from the rack 91, the aluminum alloy doors and windows can stop rotating. Thus, on the one hand, without the need for additional power mechanisms, aluminum alloy doors and windows can move and rotate simultaneously under the drive of the conveyor belt 51, which has the advantages of compact structure, low operating cost and small space occupation; on the other hand, the rotating part is located between the two support parts 4, and the aluminum alloy doors and windows are engaged in the first positioning groove 42 and the second positioning groove 63, which can realize the rapid installation and positioning of aluminum alloy doors and windows, and improve the installation stability of aluminum alloy doors and windows, making it less likely for aluminum alloy doors and windows to shake or detach during movement and rotation.

[0060] In a first aspect of the invention, as an optional embodiment, there are multiple first positioning grooves 42, symmetrically distributed along the diameter of the inner rotating ring 43; there are multiple second positioning grooves 63, symmetrically distributed along the diameter of the annular rotating wheel 61. This allows for engagement of both ends of the aluminum alloy door / window, further improving installation stability. Preferably, the first positioning grooves 42 and second positioning grooves 63 may include multiple grooves of different widths, thus adapting to the installation of aluminum alloy doors / windows of different widths; the width of both the first positioning grooves 42 and the second positioning grooves 63 is greater than the thickness of the aluminum alloy door / window. This allows the aluminum alloy door / window to move freely in the groove width direction without restriction, preventing the paint from being scraped off at the edges of the first positioning grooves 42 and the second positioning grooves 63 when the aluminum alloy door / window reciprocates along the axial direction of the inner rotating ring 43, ensuring that the sprayed paint adheres to the aluminum alloy door / window.

[0061] In a preferred embodiment of the present invention, a convex ring 431 is fixed to the outer circumferential surface of the rotating inner ring 43, and a limiting groove 411 adapted to the convex ring 431 is provided on the inner wall of the fixed outer ring 41. A ball bearing is provided between the convex ring 431 and the limiting groove 411. In this way, the wear between the rotating inner ring 43 and the fixed outer ring 41 during rotation can be reduced, ensuring the smooth rotation of the rotating inner ring 43.

[0062] In a preferred embodiment of the present invention, the distance between the two support components is less than the length of the aluminum alloy door and window, so that after the aluminum alloy door and window is inserted into the rotating inner ring 43, its two ends can protrude out of the rotating inner ring 43.

[0063] In a preferred embodiment of the present invention, a spraying box 8 is further included. The spraying box 8 is mounted on the frame 1 and located at the spraying station. The spraying box 8 has an inlet and an outlet along the conveying direction of the conveyor belt 51, and both the inlet and outlet are equipped with curtains 3. Thus, the curtains 3 can prevent the paint inside from overflowing. During loading and unloading, the support components and aluminum alloy doors and windows can automatically push the curtains 3 to open them. The curtains 3 are preferably made of flexible PVC material for easy opening.

[0064] In a preferred embodiment of the present invention, two protrusions and recesses 14 are further included, which are integrally formed on two opposite inner walls of the spray box 8. The protrusions and recesses 14 are located at positions corresponding to the rack portion 91, and the height of the protrusions and recesses 14 corresponds to the support component. The protrusions and recesses 14 are both sinusoidal waveforms, and the peak of one side of the protrusion and recesses 14 is opposite to the trough of the other side of the protrusion and recesses 14, so that a curved channel that allows aluminum alloy doors and windows to pass through is formed between the two protrusions and recesses 14.

[0065] Based on the above structure, when the aluminum alloy door and window passes the position of the concave and convex part 14, the crest can push one end of the aluminum alloy door and window and the other end to the inside of the trough, thereby realizing the aluminum alloy door and window reciprocating along the axis inside the rotating inner ring 43, so that different positions of the aluminum alloy door and window are located in the first positioning groove 42, avoiding the situation where the first positioning groove 42 blocks a certain position of the aluminum alloy door and window, causing a spraying hole, making the spraying coverage more comprehensive and further improving the spraying effect.

[0066] In a preferred embodiment of the present invention, limit rings 62 are provided on both sides of the annular wheel 61; eccentric wheels 12 are provided on both sides of the track plate 9 near the discharge port, and a transmission structure 13 is provided between the eccentric wheel 12 and one of the roller shafts 52; the limit rings 62 can pass through the eccentric wheels 12 during the movement of the conveyor belt 51.

[0067] Based on the above structure, the limiting ring 62 can engage with both sides of the track plate 9, thereby preventing the annular wheel 61 from derailing. The inner wall of the annular wheel 61 is provided with a second positioning groove 63 corresponding to the first positioning groove 42, which can further position the aluminum alloy door and window, preventing the door and window from becoming unstable due to the pushing of the concave and convex parts 14. In addition, the limiting ring 62 can pass through the eccentric wheel 12 as it moves with the conveyor belt 51. The rotating eccentric wheel 12 can drive the limiting ring 62 to vibrate, thereby causing the aluminum alloy door and window to vibrate and shake off excess paint on the aluminum alloy door and window.

[0068] In this embodiment, it is preferable to place a receiving bucket at the position below the equipment corresponding to the eccentric wheel 12, so as to receive the excess paint shaken off from above. On the one hand, this can avoid paint pollution, and on the other hand, paint can be recycled to achieve the purpose of energy saving. Furthermore, the eccentric wheel 12 in this embodiment can also be replaced with a cam or other non-circular wheel, as long as it can drive the limit ring 62 to vibrate.

[0069] In a preferred embodiment of the present invention, the transmission structure 13 includes a rotating shaft 132 rotatably mounted on the track plate 9, an eccentric wheel 12 eccentrically fixed at both ends of the rotating shaft 132; a driven wheel 131 is fixed on the rotating shaft 132, a driving wheel 134 is fixed on the roller shaft 52 at a position corresponding to the driven wheel 131, and a transmission bar 133 is drivingly connected between the driving wheel 134 and the driven wheel 131.

[0070] In this embodiment, when the roller 52 rotates, the rotation of the shaft 132 can be achieved through the action of the driving wheel 134, the driven wheel 131, and the transmission bar 133, thereby achieving the rotation of the eccentric wheel 12. This avoids the waste caused by setting a separate drive for the eccentric wheel 12. Preferably, the diameter of the driving wheel 134 is larger than the diameter of the driven wheel 131, so that when the transmission bar 133 rotates, the rotation speed of the driven wheel 131 is greater than the rotation speed of the driving wheel 134, thereby increasing the rotation speed of the shaft 132, and thus increasing the rotation speed of the eccentric wheel 12, achieving rapid vibration of the eccentric wheel 12 against the limiting ring 62, thereby achieving the purpose of rapid vibration of the aluminum alloy door and window.

[0071] In a preferred embodiment of the present invention, the spraying assembly 7 includes a storage box 71 located on one side of the curtain 3, a liquid pump 72 installed outside the storage box 71, a spraying pipe 74 fixed inside the top surface of the spraying box 8, a nozzle installed at the lower end of the spraying pipe 74, and a main pipe 73 connecting the spraying pipe 74 and the liquid pump 72.

[0072] In this embodiment, when the liquid pump 72 is working, it can draw the paint from the storage tank 71 and pump it into the interior of the spraying pipe 74 through the main pipe 73. Finally, it is sprayed out from the nozzle 75 to the outer surface of the aluminum alloy door and window. Preferably, at least two sets of nozzles 75 are provided and arranged on both sides of the track plate 9 to ensure uniform spraying. The spraying pipe 74 can also be configured as a flexible hose.

[0073] In a preferred embodiment of the present invention, an air suction mechanism 11 communicating with the interior of the spraying box 8 is installed on the lower side of one side of the spraying box 8, and a guide pipe 111 is installed on the side of the air suction mechanism 11 away from the spraying box 8.

[0074] In this embodiment, when the suction mechanism 11 is working, it can suck away the excess paint and connect the guide pipe 111 to the recycling box, thereby realizing the recycling of excess paint and avoiding the situation where a lot of paint waste in the workshop affects the health of the staff.

[0075] Working principle:

[0076] In use, the aluminum alloy door / window is inserted into the first positioning groove 42 and the second positioning groove 63 from one side, thereby positioning the aluminum alloy door / window inside the support member 4 and the rotating member 6. The drive assembly 2 drives one of the roller shafts 52 to rotate, so that when one of the roller shafts 52 rotates, the two conveyor belts 51 can rotate synchronously. When the conveyor belt 51 rotates, it can drive the fixed outer ring 41 to move, thereby driving the entire support member 4 to move together. At the same time, it can also drive the rotating member 6 to move together through the action of the connecting rod 10. The rotating member 6 moves along the track plate 9 to guide the movement of the support member 4 until the support member 4 and the rotating member 6 reach the feed port of the spray box 8. When the curtain 3 is opened, the annular wheel 61 engages with the rack 91. As the annular wheel 61 continues to move, it rotates. This rotation drives the inner ring 43 via the connecting rod 10. The annular wheel 61 and the inner ring 43 then rotate the aluminum alloy door / window inside. During this rotation, the liquid pump 72 draws paint from the storage tank 71 and pumps it into the spray pipe 74 through the main pipe 73. Finally, the paint is sprayed from the nozzle 75 onto the outer surface of the aluminum alloy door / window. Simultaneously, as the aluminum alloy door / window passes the concave-convex part 14, waves... The peak can push one end of the aluminum alloy door / window to the trough, thus enabling the aluminum alloy door / window to reciprocate axially within the rotating inner ring 43. This ensures that different positions of the aluminum alloy door / window are located within the first positioning groove 42, preventing the first positioning groove 42 from obstructing a certain position of the aluminum alloy door / window and causing spraying gaps. This guarantees comprehensive spraying. (The width of both the first positioning groove 42 and the second positioning groove 63 is greater than the thickness of the aluminum alloy door / window, allowing the aluminum alloy door / window to move freely in the groove width direction. This also prevents the paint from being scraped off at the edges of the first positioning groove 42 and the second positioning groove 63 when the aluminum alloy door / window reciprocates axially along the rotating inner ring 43.) The situation ensures that the sprayed paint adheres to the aluminum alloy door and window. Until the aluminum alloy door and window moves to the discharge port of the spray box 8, the annular rotating wheel 61 loses the function of the rack part 91 and stops rotating, so the aluminum alloy door and window stops rotating. When the aluminum alloy door and window moves to the position of the eccentric wheel 12, the rotating eccentric wheel 12 can drive the limit ring 62 to vibrate, thereby indirectly driving the aluminum alloy door and window to vibrate. (When the roller 52 rotates, the rotation of the rotating shaft 132 can be achieved through the action of the driving wheel 134, the driven wheel 131 and the transmission bar 133, thereby achieving the rotation of the eccentric wheel 12, thus avoiding the waste caused by setting a separate drive for the eccentric wheel 12.)Preferably, the diameter of the driving wheel 134 is larger than that of the driven wheel 131, so that when the transmission bar 133 rotates, the rotation speed of the driven wheel 131 is greater than that of the driving wheel 134, thereby increasing the rotation speed of the rotating shaft 132, and thus increasing the rotation speed of the eccentric wheel 12, so as to achieve rapid vibration of the eccentric wheel 12 against the limiting ring 62, thereby achieving the purpose of rapid vibration of the aluminum alloy door and window. When it vibrates, it can shake off excess paint, avoiding uneven paint on the aluminum alloy door and window, which would lead to unevenness on the outer surface of the finished aluminum alloy door and window. As the aluminum alloy door and window continues to move to the right, the workers can remove the painted door and window from the right side, that is, the right side is the unloading station. Figure 1 (From the perspective shown).

[0077] When the suction mechanism 11 is working, it can suck away the excess paint and connect the guide pipe 111 to the recycling box, thereby realizing the recycling of excess paint and avoiding the situation where a lot of paint waste in the workshop affects the health of the workers.

[0078] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.

[0079] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the embodiments of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A painting device for aluminum alloy doors and windows, characterized in that, include: frame; The frame is equipped with a spraying station; The conveying assembly includes two rollers arranged side by side at both ends of the frame, drive rollers fixed to both ends of the rollers, and a conveyor belt that drives the two drive rollers on the same side. A drive assembly, mounted on the frame, is used to drive either of the two rollers to rotate; A spraying assembly is mounted on the frame and located at the spraying station; the spraying assembly is used to spray paint aluminum alloy doors and windows that have been moved to the spraying station. A rotating support mechanism includes a plurality of support components and a rotating transmission component for accommodating the aluminum alloy doors and windows respectively; the plurality of support components are evenly and spaced apart on the outer surface of the conveyor belt; the rotating transmission component is mounted on the frame and located at the spraying station, and the rotating transmission component is used to drive the aluminum alloy doors and windows on the support components that have moved to the spraying station to rotate. The support assembly includes two support members, a connecting rod, and a rotating member; Two support members are respectively fixed to the outer surfaces of the two conveyor belts; each support member includes a fixed outer ring fixedly installed on the outer surface of the conveyor belt and a rotating inner ring rotatably installed on the inner wall of the fixed outer ring; a first positioning groove is formed on the inner wall of the rotating inner ring. The rotating component is located between two supporting components. The rotating component includes an annular rotating wheel, the two sides of which are fixedly connected to the inner rotating rings of the two supporting components through the connecting rods respectively. A second positioning groove is formed on the inner wall of the annular rotating wheel. The aluminum alloy door and window are adapted to be snapped into the first positioning groove and the second positioning groove. A ring of meshing teeth is provided on the outer wall of the annular rotating wheel. The rotary transmission assembly includes a track plate and a rack. The track plate is mounted on the frame and located between the two conveyor belts. The rack is located on the upper surface of the track plate at the spraying station. When the annular wheel moves to the position of the rack, its meshing teeth can mesh with the rack.

2. The painting device for aluminum alloy doors and windows according to claim 1, characterized in that, The number of first positioning grooves is multiple, and the multiple first positioning grooves are symmetrically distributed along the diameter direction of the inner rotating ring; the number of second positioning grooves is multiple, and the multiple second positioning grooves are symmetrically distributed along the diameter direction of the annular rotating wheel; the width of both the first positioning groove and the second positioning groove is greater than the thickness of the aluminum alloy door and window.

3. The painting device for aluminum alloy doors and windows according to claim 1, characterized in that, The outer circumference of the rotating inner ring is fixed with a convex ring, and the inner wall of the fixed outer ring is provided with a limiting groove that matches the convex ring. A ball bearing is provided between the convex ring and the limiting groove.

4. The painting device for aluminum alloy doors and windows according to claim 1, characterized in that, It also includes a spraying box, which is mounted on the frame and located at the spraying station. The spraying box has an inlet and an outlet along the conveyor belt, and both the inlet and outlet are equipped with curtains.

5. The painting device for aluminum alloy doors and windows according to claim 4, characterized in that, It also includes two concave and convex portions, which are integrally formed on two opposite inner walls of the spray box; the concave and convex portions are located at positions corresponding to the rack portion, and the height of the concave and convex portions corresponds to the support component; the concave and convex portions are both sinusoidal waveforms, and the peak of the concave and convex portion on one side is opposite to the trough of the concave and convex portion on the other side, so that a curved channel that allows aluminum alloy doors and windows to pass through is formed between the two concave and convex portions.

6. The painting device for aluminum alloy doors and windows according to claim 5, characterized in that, Limiting rings are provided on both sides of the annular rotating wheel; eccentric wheels are provided on both sides of the track plate near the discharge port, and a transmission structure is provided between the eccentric wheels and one of the roller shafts; the limiting rings can pass through the eccentric wheels as the conveyor belt moves.

7. The painting device for aluminum alloy doors and windows according to claim 6, characterized in that, The transmission structure includes a rotating shaft rotatably mounted on a track plate, with an eccentric wheel eccentrically fixed at both ends of the rotating shaft; a driven wheel is fixed on the rotating shaft, and a driving wheel is fixed on the roller shaft at a position corresponding to the driven wheel; a transmission bar connects the driving wheel and the driven wheel.

8. The painting device for aluminum alloy doors and windows according to claim 7, characterized in that, The spraying assembly includes a storage box located on one side of the curtain, a liquid pump installed outside the storage box, a spraying pipe fixed inside the top surface of the spraying box, a nozzle installed at the lower end of the spraying pipe, and a main pipe connecting the spraying pipe and the liquid pump.

9. The painting device for aluminum alloy doors and windows according to claim 8, characterized in that, An air intake mechanism communicating with the interior of the spray box is installed on one side of the lower part of the spray box, and a guide pipe is installed on the side of the air intake mechanism away from the spray box.

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