Front and back overturning paint spraying device for door plate

Abstract

The utility model discloses a door plate front and back turnover paint spraying device which comprises a door plate feeding conveying system, a conveying turnover mechanism, a paint spraying turnover mechanism and a door plate discharging mechanism. The door plate discharging mechanism can automatically take down the door plate subjected to paint spraying from the paint spraying turnover mechanism and place the door plate on a placing frame, and convenience is provided for subsequent drying, ventilation and storage of the door plate. The paint spraying turnover mechanism is used for turning over the door plate in the paint spraying process so as to ensure the uniformity and integrity of a sprayed coating, and the paint spraying effect and quality are improved. The process of uniformly spraying the door plate in the paint spraying room is realized by utilizing the gravity of the door plate; the conveying and overturning mechanism is used for overturning the door plate in the conveying process so as to meet the technological requirements or facilitate operation and machining, and the production efficiency and flexibility are improved. A placing frame in the door plank discharging mechanism is divided into a plurality of layers from top to bottom, the placing frame can guarantee automation, meanwhile, the same ventilation condition of each layer of wooden door plank is guaranteed, and the working efficiency and the uniformity of products are greatly guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of door processing, in particular to a device for spraying paint on the front and back sides of a door panel with flipping. Background Art

[0002] As an important branch of the home decoration and furniture industries, door panel painting, as a surface treatment technology, is mainly applied to industries such as furniture, construction, and automobiles. Door panel painting not only helps to improve the aesthetics and durability of products but also provides a certain degree of protection. In particular, uniform painting of wooden door panels can prevent water and moisture, avoiding deformation of the door panels. With the development of the economy, people's demand for housing is getting higher and higher, and the demand for the door panel painting industry has shown an increasing trend year by year. With the intensification of market competition, the quality of door panels has become the focus of competition among various manufacturers. From the selection of paint materials to the optimization of the painting process, every aspect is an important link in improving the quality of the final product. The rising costs of raw materials, labor, and equipment maintenance have brought pressure to door panel painting enterprises. At the same time, the painting industry poses a potential threat to the health of workers. If the protection is not in place, it will seriously affect the respiratory health of workers. Therefore, automated painting equipment has become an urgent need in the painting industry, and thus improvements are required. Summary of the Invention

[0003] Aiming at the defects in the prior art such as labor costs and potential dangers of painting to the health of workers, the utility model provides a new device for spraying paint on the front and back sides of a door panel with flipping.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] A device for spraying paint on the front and back sides of a door panel with flipping,

[0006] comprising a door panel loading and conveying system, a conveying and flipping mechanism, a spraying and flipping mechanism, and a door panel unloading mechanism;

[0007] The door panel loading and conveying system includes a loading mechanism and a roller conveying mechanism;

[0008] The roller conveying mechanism includes a frame, a driving device, a roller assembly, and a transmission assembly. The roller assembly consists of rollers, the rollers are rotatably connected to the frame, the driving device is connected to one of the rollers, and the rollers are connected to each other by means of the transmission assembly;

[0009] The conveying and flipping mechanism includes a flipping part, a conveying clamping and positioning mechanism, and a flipping bracket. The flipping part is rotatably connected to the flipping bracket. The flipping part is provided with at least two flipping support rods. The frame is provided with rod grooves corresponding to the flipping support rods to cooperate with the flipping support rods. The upper surface of the flipping support rods is flush with the transportation plane formed by the roller assembly. The conveying clamping and positioning mechanism is arranged on the flipping support rods;

[0010] The described door panel blanking mechanism includes a telescopic base, a slide rail, and a placement rack. The telescopic base is slidably connected to the slide rail, and the placement rack is arranged at the end of the slide rail. The telescopic base includes a support seat and a telescopic cylinder;

[0011] The paint spraying and flipping mechanism includes a paint spraying support, a rotation control mechanism, a rotating platform, and a flipping and clamping mechanism. The rotating platform is rotatably connected to the paint spraying support by means of the rotation control mechanism. The flipping and clamping mechanism is arranged on the rotating platform, and the paint spraying supports are distributed on both sides of the slide rail;

[0012] A door panel support is provided on the door panel, and a support groove for cooperating with the door panel support is provided on the support seat.

[0013] An air pump can be provided on the flipping support rod so that the flipping support rod can adsorb the door panel during the process of flipping the door panel, preventing the door panel from slipping during the flipping process; The described conveying, clamping and positioning mechanism is installed on two support rods in the middle of the support frame and is used for positioning and assisting in clamping the door panel.

[0014] The rotating platform has a rotation control mechanism that enables the flipping and clamping mechanism to perform a rotational motion to achieve the purpose of rotating paint spraying. The flipping and clamping mechanism is fixed on the rotation control mechanism and is used to prevent the door panel from falling off during the rotating paint spraying process; The rotation control mechanism is used to drive the movement of the rotating platform to drive the rotating platform to perform a relative rotational motion relative to the paint spraying support.

[0015] The rotation control mechanism adopts a DC motor, which is a common type of motor in robotic arms. Its simple control method, high efficiency, and suitability for a wide range of application scenarios make it an important choice in the design of robotic arms. The DC motor achieves speed and direction control by adjusting the current direction or voltage magnitude. This type of motor is suitable for applications that require quick response and relatively simple control, such as material handling, simple assembly, etc.; The base of the DC motor is fixed on the frame; The output shaft of the DC motor is connected to the rotating platform through a coupling transmission mechanism.

[0016] The support groove is used to position the door panel placed on the support seat.

[0017] The telescopic cylinder enables the support seat to move up and down. When the flipping and clamping mechanism in the rotating platform relaxes after the door panel passes through the paint spraying and flipping mechanism, the telescopic cylinder provides power to make the support seat move upward, and the support groove on the support seat contacts the door panel support to remove the door panel; The slide rail is located below the telescopic base, enabling the telescopic base to move along the slide rail. The telescopic base removes the painted door panel and moves along the slide rail to the placement rack.

[0018] Preferably, for a front and back side flipping and painting device for a door panel as described above, the loading mechanism includes a loading jaw, a loading moving mechanism, and a loading bracket. The loading jaw is provided with a jaw connecting rod, and the jaw connecting rod is slidably connected to the loading moving mechanism, and the loading moving mechanism is slidably connected to the loading bracket.

[0019] Preferably, for a front and back side flipping and painting device for a door panel as described above, the loading jaw includes a main clamping rod, a sub-clamping rod, a main loading connecting rod, a sub-loading connecting rod, a spring, a loading cylinder, a positioning block, and a jaw bracket. The main clamping rod, the main loading connecting rod, the sub-clamping rod, and the sub-loading connecting rod are sequentially hinged end to end. The main loading connecting rod is provided with a chute. One end of the positioning block is fixed to the jaw bracket, and the other end is slidably connected to the chute. The loading cylinder is fixed to the jaw bracket, and the push rod of the loading cylinder is connected to the main clamping rod. One end of the spring is fixed to the jaw bracket and the other end is connected to the sub-clamping rod.

[0020] The main clamping rod, the sub-clamping rod, the main loading connecting rod, and the sub-loading connecting rod form a hinge four-bar mechanism. Driven by the loading cylinder, the clamping rods contract inward to form a clamping force. When the loading cylinder is not working, the spring restores the four-bar mechanism to a relaxed state. This mechanical clamping mechanism in the form of a four-bar mechanism has the characteristics of simple structure, fast clamping action, and light weight.

[0021] Preferably, for a front and back side flipping and painting device for a door panel as described above, a baffle is provided on one of the flipping support rods that is farthest from the door panel loading and conveying system.

[0022] The baffle is provided for positioning the door panel.

[0023] Preferably, for a front and back side flipping and painting device for a door panel as described above, the flipping and clamping mechanism includes a jaw and a locking cylinder for driving the jaw. The jaw consists of two movable clamping blocks. The rotating platform is provided with two rotating positioning parts, and each rotating positioning part is provided with a flipping and clamping mechanism. The rotating positioning part is provided with a flipping groove for accommodating the door panel bracket. The movable clamping blocks cooperate with the locking cylinder to form a locked state and a to-be-locked state. In the locked state, the door panel bracket is placed in the flipping groove, and the jaw closes under the action of the locking cylinder and covers the opening of the flipping groove.

[0024] Preferably, for a front and back side flipping and painting device for a door panel as described above, when the movable clamping blocks in each flipping and clamping mechanism are in the to-be-locked state, they cooperate with the flipping groove in the cross-section to form a V shape at the upper end.

[0025] The upper ends of the two movable clamping blocks form a V shape, which facilitates the positioning of the door panel transported from the conveying and flipping mechanism to the painting and flipping mechanism, and improves the error tolerance of the mechanical positioning accuracy.

[0026] Preferably, in the above-mentioned front and back side turning and painting device for door panels, a flexible pad is provided at the lower section of the movable clamping block.

[0027] A flexible pad is attached to the clamping part at the lower end of the movable clamping block to increase the clamping force and friction during clamping, preventing the door panel from falling off during the painting process.

[0028] Preferably, in the above-mentioned front and back side turning and painting device for door panels, side baffles are provided on the outer sides of the roller conveying mechanism, and the side baffles are fixedly connected to the frame.

[0029] The side baffles are fixed to the frame, and the side baffles form a conveying and guiding track for the door panels, in order to guide the door panels to a specified position, facilitating the positioning of the door panels by the conveying and turning mechanism and the painting and turning mechanism.

[0030] Preferably, in the above-mentioned front and back side turning and painting device for door panels, the placing rack is provided with a layered plate, and layered grooves matching with the door panel brackets are provided on the layered plate.

[0031] The telescopic base removes the painted door panel and moves it along the slide rail to the placing rack; the placing rack is layered from top to bottom, and the telescopic base drags the painted door panel along the slide rail to the placing rack and then places the painted door panels in sequence from top to bottom waiting to be dried.

[0032] Preferably, in the above-mentioned front and back side turning and painting device for door panels, the conveying and turning mechanism is further provided with a weighing and measuring sensor, the door panel loading and conveying system is further provided with a conveying controller, the weighing and measuring sensor is electrically connected to the conveying controller, and the conveying controller is electrically connected to the driving device of the roller conveying mechanism.

[0033] The weighing and measuring sensor, the conveying controller and the driving device are electrically connected. The lengths and quantities of the support rods forming the support frame are designed according to the size and weight of the door panel. When there is a door panel on the conveying and turning mechanism, the loading and conveying system stops conveying the door panel.

[0034] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0035] 1. The door panel unloading mechanism can automatically remove the painted door panel from the painting and turning mechanism and place it on the placing rack, facilitating the subsequent drying, ventilation and storage of the door panels, realizing high automation and improving production efficiency.

[0036] 2. The painting and turning mechanism is used to turn the door panel during the painting process to ensure the uniformity and integrity of the sprayed coating, improving the painting effect and quality. The gravity of the door panel is utilized to realize the uniform spraying process of the door panel in the painting room.

[0037] 3. The conveying and flipping mechanism is used to flip the door panel during the conveying process to meet the process requirements or facilitate operation and processing, improving production efficiency and flexibility.

[0038] 4. The placement rack in the door panel blanking mechanism is divided into several layers from top to bottom. Due to the special nature of the wooden door panel material, it is necessary to ensure good ventilation of the door panel after painting. This placement rack ensures the same ventilation conditions for each layer of wooden door panels while ensuring automation, greatly guaranteeing work efficiency and product uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the door panel loading and conveying system in the present invention;

[0041] Figure 3 It is a schematic diagram of the structure of the loading gripper in the present invention

[0042] Figure 4 It is a schematic diagram of the structure of the roller conveying mechanism in the present invention;

[0043] Figure 5 It is a schematic diagram of the structure of the conveying and flipping mechanism in the present invention;

[0044] Figure 6 It is a schematic diagram of the structure of the painting and flipping mechanism in the present invention;

[0045] Figure 7 It is a schematic diagram of the structure of the door panel blanking mechanism in the present invention;

[0046] Figure 8 It is a schematic diagram of the structure of the telescopic base in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0047] The following combines the attached Figure 1-8 drawings and specific embodiments to further describe the present invention in detail, but they are not limitations on the present invention: Embodiment

[0048] A door panel front and back flipping and painting device,

[0049] comprising a door panel loading and conveying system 1, a conveying and flipping mechanism 2, a painting and flipping mechanism 3, and a door panel blanking mechanism 4;

[0050] The door panel loading and conveying system 1 includes a loading mechanism and a roller conveying mechanism 7;

[0051] The drum conveying mechanism 7 includes a frame 17, a driving device, a roller assembly, and a transmission assembly 19. The roller assembly consists of rollers 16, and the rollers 16 are rotatably connected to the frame 17. The driving device is connected to one of the rollers 16, and the rollers 16 are connected by means of the transmission assembly 19;

[0052] The conveying and flipping mechanism 2 includes a flipping part 22, a conveying clamping and positioning mechanism 21, and a flipping bracket. The flipping part 22 is rotatably connected to the flipping bracket. The flipping part 22 is provided with at least two flipping support rods. The frame 17 is provided with rod grooves corresponding to the flipping support rods to cooperate with the flipping support rods. The upper surface of the flipping support rods is flush with the transportation plane formed by the roller assembly. The conveying clamping and positioning mechanism 21 is arranged on the flipping support rods;

[0053] The door panel blanking mechanism 4 includes a telescopic base 27, a slide rail 28, and a placement rack 29. The telescopic base 27 is slidably connected to the slide rail 28, and the placement rack 29 is arranged at the end of the slide rail 28. The telescopic base 27 includes a support base 30 and a telescopic cylinder 31;

[0054] The painting and flipping mechanism 3 includes a painting bracket 26, a rotation control mechanism 24, a rotating platform 23, and a flipping clamping mechanism 25. The rotating platform 23 is rotatably connected to the painting bracket 26 by means of the rotation control mechanism 24. The flipping clamping mechanism 25 is arranged on the rotating platform 23. The painting brackets 26 are distributed on both sides of the slide rail 28;

[0055] A door panel bracket is arranged on the door panel, and a support groove for cooperating with the door panel bracket is arranged on the support base 30.

[0056] Preferably, the loading mechanism includes a loading jaw 5, a loading moving mechanism 6, and a loading bracket. The loading jaw 5 is provided with a jaw connecting rod, and the jaw connecting rod is slidably connected to the loading moving mechanism 6. The loading moving mechanism 6 is slidably connected to the loading bracket.

[0057] Preferably, the loading jaw 5 includes a main clamping rod 9, a sub-clamping rod 10, a main loading connecting rod 12, a sub-loading connecting rod 11, a spring 15, a loading cylinder 8, a positioning block 13, and a jaw bracket 14. The main clamping rod 9, the main loading connecting rod 12, the sub-clamping rod 10, and the sub-loading connecting rod 11 are sequentially hinged end to end. The main loading connecting rod 12 is provided with a chute. One end of the positioning block 13 is fixed to the jaw bracket 14, and the other end is slidably connected to the chute. The loading cylinder 8 is fixed to the jaw bracket 14, and the push rod of the loading cylinder 8 is connected to the main clamping rod 9. One end of the spring 15 is fixed to the jaw bracket 14 and the other end is connected to the sub-clamping rod 10.

[0058] Preferably, a baffle 20 is provided on one of the turning rods that is farthest from the door panel loading and conveying system 1.

[0059] Preferably, the turning and clamping mechanism 25 includes clamping jaws and a locking cylinder for driving the clamping jaws. The clamping jaws are composed of two movable clamping blocks. The rotating platform 23 is provided with two rotating positioning parts, and each rotating positioning part is provided with a turning and clamping mechanism 25. The rotating positioning part is provided with a turning groove for accommodating the door panel bracket. The movable clamping blocks cooperate with the locking cylinder to form a locked state and a state to be locked. In the locked state, the door panel bracket is placed in the turning groove, and the clamping jaws are closed under the action of the locking cylinder and cover the opening of the turning groove.

[0060] Preferably, when the movable clamping blocks in each turning and clamping mechanism 25 are in the state to be locked, they cooperate with the turning groove in the cross-section to form a V shape at the upper end.

[0061] Preferably, a flexible pad is provided at the lower section of the movable clamping block.

[0062] Preferably, side baffles 18 are provided on the outer sides of the roller conveying mechanisms 7, and the side baffles 18 are fixedly connected to the frame 17.

[0063] Preferably, the placing rack 29 is provided with a layered plate, and layered grooves matching the door panel brackets are provided on the layered plate.

[0064] Preferably, the conveying and turning mechanism 2 is further provided with a weighing and measuring sensor, the door panel loading and conveying system 1 is further provided with a conveying controller, the weighing and measuring sensor is electrically connected to the conveying controller, and the conveying controller is electrically connected to the driving device of the roller conveying mechanism 7.

[0065] When this structure is in use, first stack the door panels to be painted at the specified position clamped by the loading gripper 5. The loading cylinder 8 on the loading gripper 5 extends to move the main clamping rod 9 forward. In cooperation with the main clamping rod 9, the auxiliary clamping rod 10, the main loading connecting rod 12, and the auxiliary loading connecting rod 11, a four-bar mechanism is formed. Then, combined with the positioning block 13, the clamping rod 10 contracts inward. Thus, the main clamping rod 9 and the auxiliary clamping rod 10 form a clamping action to pick up the door panel. After picking up the door panel, the door panel is moved from the clamping position to the roller conveying mechanism 7 by the loading moving mechanism 6. When the loading cylinder 8 contracts, under the elastic force of the spring 15, the main clamping rod 9 and the auxiliary clamping rod 10 are in a relaxed state to put down the door panel. The frame 17 is provided with a row of idler rollers 16, and a transmission component 19 is provided at the end of the idler roller 16 to make the idler roller 16 roll to drive the door panel to move forward to complete the automatic loading action of the door panel; the roller conveying mechanism 7 transports the door panel to the conveying and flipping mechanism 2. During the transportation of the door panel on the roller conveying mechanism 7, the side baffle 18 provided outside the roller conveying mechanism 7 guides the door panel to the specified position, which is convenient for the positioning of the door panel by the conveying and flipping mechanism 2 and the painting and flipping mechanism 3; after the door panel reaches the specified position, the baffle 20 on the conveying and flipping mechanism 2 stops the door panel from moving forward, and the conveying and clamping and positioning mechanism 21 on the conveying and flipping mechanism 2 fixes the door panel. Subsequently, the air pump 111 on the conveying and flipping mechanism 2 is used to adsorb the door panel to realize the transfer of the door panel from the roller conveying mechanism 7 to the painting and flipping mechanism 3. Four support rod grooves are reserved on the frame of the roller conveying mechanism 7 at the position of the conveying and flipping mechanism 2 for placing the four flipping support rods of the flipping part 22, so that the flipping part 22 can be placed under the door panel without affecting the door panel loading and conveying system; the door panel reaches the painting and flipping mechanism 3 through the conveying and flipping mechanism 2. The flipping and clamping mechanism 25 on the rotating platform 23 in the painting and flipping mechanism 3 clamps the door panel brackets fixed at both ends of the door panel to achieve the purpose of clamping the door panel and prevent the door panel from falling off during the rotating painting process. After clamping the door panel, the rotation control mechanism 24 is used to drive the rotating platform 23 to rotate relative to the painting support 26 and start rotating painting. The painting and flipping mechanism 3 is used to flip the door panel during the painting process to ensure the uniformity and integrity of the sprayed coating, improve the painting effect and quality, and utilize the gravity of the door panel to realize the uniform spraying process of the door panel in the painting room; after the door panel completes the rotating painting, the telescopic base 27 is driven to move upward by the telescopic cylinder 31. There are two support grooves on the support seat 30 on the telescopic base 27. The function of the two support grooves is to position the door panel placed on the support seat 30 so that the door panel can be placed at the specified position on the support seat 30. The slide rail 28 is located under the telescopic base 27, so that the telescopic base 27 can move along the slide rail 28. The telescopic base removes the painted door panel from the flipping and clamping mechanism 25, and the telescopic base 27 can move along the slide rail 28 to the placement rack 29 to complete the unloading action of the painted door panel.

[0066] In summary, the above are only the preferred embodiments of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A door panel front and back flip painting device, characterized by: It comprises a door panel feeding and conveying system (1), a conveying and turning mechanism (2), a spray painting and turning mechanism (3), and a door panel unloading mechanism (4); The door panel feeding and conveying system (1) comprises a feeding mechanism and a roller conveying mechanism (7); The roller conveying mechanism (7) comprises a frame (17), a driving device, a roller assembly, and a transmission assembly (19); the roller assembly comprises rollers (16); the rollers (16) are rotatably connected to the frame (17); the driving device is connected to one of the rollers (16); and the rollers (16) are connected to each other via the transmission assembly (19); The conveying and turning mechanism (2) comprises a turning part (22), a conveying clamping and positioning mechanism (21), and a turning bracket, the turning part (22) being rotatably connected to the turning bracket, the turning part (22) being provided with at least two turning support rods, the frame (17) being provided with support rod grooves matching the turning support rods at positions corresponding to the turning support rods, the upper surface of the turning support rods being flush with the transport plane formed by the roller assembly, and the conveying and clamping and positioning mechanism (21) being provided on the turning support rods; The door panel unloading mechanism (4) comprises a telescopic base (27), a slide rail (28), and a display rack (29); the telescopic base (27) is slidably connected to the slide rail (28); the display rack (29) is arranged at the end of the slide rail (28); the telescopic base (27) comprises a support seat (30) and a telescopic cylinder (31); The paint spraying flip mechanism (3) comprises a paint spraying bracket (26), a rotation control mechanism (24), a rotating platform (23), and a flip clamping mechanism (25); the rotating platform (23) is rotationally connected to the paint spraying bracket (26) by means of the rotation control mechanism (24); the flip clamping mechanism (25) is arranged on the rotating platform (23); and the paint spraying bracket (26) is distributed on both sides of the slide rail (28); A door panel bracket is provided on the door panel, and a support groove for matching the door panel bracket is provided on the support seat (30).

2. The door panel front and back flip painting device according to claim 1, characterized in that: The feeding mechanism comprises a feeding clamp (5), a feeding moving mechanism (6), and a feeding bracket. The feeding clamp (5) is provided with a clamp connecting rod, the clamp connecting rod is slidably connected to the feeding moving mechanism (6), and the feeding moving mechanism (6) is slidably connected to the feeding bracket.

3. The door panel front and back flip painting device according to claim 2, characterized in that: The feeding clamp (5) comprises a main clamping rod (9), a secondary clamping rod (10), a main feeding connecting rod (12), a secondary feeding connecting rod (11), a spring (15), a feeding cylinder (8), a positioning block (13), and a clamping jaw bracket (14). The main clamping rod (9), the main feeding connecting rod (12), the secondary clamping rod (10), and the secondary feeding connecting rod (11) are hinged in sequence end to end. The main feeding connecting rod (12) is provided with a slide groove. One end of the positioning block (13) is fixed to the clamping jaw bracket (14), and the other end is slidably connected to the slide groove. The feeding cylinder (8) is fixed to the clamping jaw bracket (14). The push rod of the feeding cylinder (8) is connected to the main clamping rod (9). One end of the spring (15) is fixed to the clamping jaw bracket (14), and the other end is connected to the secondary clamping rod (10).

4. The door panel front and back flip painting device according to claim 1, characterized in that: A baffle plate (20) is provided on the flip support rod that is farthest from the door panel feeding and conveying system (1).

5. The door panel front and back flip painting device according to claim 1, characterized in that: The flip clamping mechanism (25) comprises a clamping jaw and a locking cylinder for driving the clamping jaw, the clamping jaw is composed of two movable clamping blocks, the rotating platform (23) is provided with two rotating positioning parts, each of the rotating positioning parts is provided with a flip clamping mechanism (25), the rotating positioning part is provided with a flip groove for accommodating a door panel bracket, the movable clamping block cooperates with the locking cylinder to form a locked state and a waiting state, in the locked state, the door panel bracket is placed in the flip groove, and the clamping jaw is closed and covers the opening of the flip groove under the action of the locking cylinder.

6. The door panel front and back flip painting device according to claim 5, characterized in that: When the movable clamping block in each flip clamping mechanism (25) is in a locked state, it cooperates with the flip groove in cross section to form an upper end forming a V shape.

7. The door panel front and back flip painting device according to claim 5, characterized in that: The lower section of the movable clamping block is provided with a flexible pad.

8. The door panel front and back flip painting device according to claim 1, characterized in that: The roller conveying mechanism (7) is provided with a side baffle (18) on the outside, and the side baffle (18) is fixedly connected to the frame (17).

9. The door panel front and back flip painting device according to claim 1, characterized in that: The display rack (29) is provided with a layered plate, and the layered plate is provided with a layered groove that cooperates with the door panel bracket.

10. The door panel front and back flip painting device according to claim 1, characterized in that: The conveying and turning mechanism (2) is also provided with a weighing measurement sensor, and the door panel feeding and conveying system (1) is also provided with a conveying controller, the weighing measurement sensor is electrically connected to the conveying controller, and the conveying controller is electrically connected to the driving device of the roller conveying mechanism (7).

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