A paint spraying device for processing aluminum alloy door and window accessories

Abstract

The application belongs to the technical field of aluminum alloy door and window processing, and particularly discloses a paint spraying device for aluminum alloy door and window accessory machining, which comprises a base, a connecting frame fixedly connected to the top of the base, and a mounting table arranged on one side of the base. The paint spraying structure is arranged, so that the height of the spray gun can be synchronously adjusted by adjusting the position of the trigger rod under the joint action of the trigger rod, the fixed cylinder, the sliding plate, the second spring, the third spring, the sliding plate and the sliding rod. Since the height between the spraying center of the spray gun and the placement plate is half of the height between the bottom of the ball and the placement plate, and the number of the adjusting cylinders is two and the ratio of the inner diameter of the fixed cylinder to the inner diameter of the adjusting cylinder is 1:1, the moving distance of the trigger rod is twice that of the sliding rod, so that the spray gun is always located at the spraying center of the profile, and the spraying effect is ensured.

Description

Technical Field

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

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, mullions, and sashes. They are also known as aluminum doors and windows. Aluminum alloy doors and windows include doors and windows that use aluminum alloy as the load-bearing member (the member that bears and transmits its own weight and load) as the base material and are combined with wood or plastic. They are also known as aluminum-wood composite doors and windows or aluminum-plastic composite doors and windows.

[0003] According to the search, a Chinese patent discloses a painting device for processing aluminum alloy door and window accessories (publication number: CN217594998U). This patent places the accessories to be painted on the top of the placement table and then sprays the accessories with a spray gun.

[0004] After the painting is completed during use, the accessories need to be removed and the surface can be sprayed again after the paint has solidified. However, the existing equipment affects the painting effect when removing the freshly painted accessories, and the different heights of the accessories make it difficult to adjust the position of the spray gun, which causes the center point of the spray to shift and affects the painting effect. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a painting device for processing aluminum alloy door and window accessories, so as to solve the problem of poor painting effect in the prior art.

[0006] To achieve the above objectives, the present invention provides a painting device for processing aluminum alloy door and window accessories, including a base, a connecting frame fixedly connected to the top of the base, a mounting platform provided on one side of the base, two symmetrically distributed mounting plates fixedly connected to the inner wall of the base, uniformly distributed through holes on the surface of the mounting plates, a placement structure provided between the two mounting plates, a spraying structure provided on the inner side of the connecting frame, and a sliding cavity formed between the two mounting plates;

[0007] The spraying structure includes a fixed plate disposed inside the connecting frame. A fixed cylinder is fixedly connected to the bottom of the fixed plate. Two spray guns are disposed below the fixed plate and symmetrically distributed around the fixed cylinder. An adjusting cylinder is disposed above the spray guns. A sliding plate is slidably connected to the inner wall of the adjusting cylinder. A third spring is fixedly connected between the bottom of the sliding plate and the inner bottom wall of the adjusting cylinder. A sliding rod is fixedly connected to the bottom of the sliding plate. The lower end of the sliding rod passes through the adjusting cylinder and is fixedly connected to the surface of the spray gun. A guide tube is connected to the top of the adjusting cylinder. The other end of the guide tube is connected to the inside of the fixed cylinder. The ratio of the inner diameter of the fixed cylinder to the inner diameter of the adjusting cylinder is 1:1.

[0008] In the above technical solution, preferably, a connecting plate is fixedly connected to the surface of the adjusting cylinder, the other end of the connecting plate is fixedly connected to the surface of the fixed cylinder, a sliding plate is slidably connected to the inner wall of the fixed cylinder, hydraulic oil is filled between the bottom of the sliding plate and the fixed cylinder and between the top of the sliding plate and the adjusting cylinder, a trigger rod is fixedly connected to the bottom of the sliding plate, the lower end of the trigger rod passes through the fixed cylinder, a ball is provided at the bottom of the trigger rod, the ball is rotatably connected to the inner wall of the trigger rod, and a second spring is fixedly connected between the sliding plate and the inner wall of the fixed cylinder.

[0009] In the above technical solution, preferably, the placement structure includes a motor disposed on the top of the mounting platform, the output shaft of the motor is fixedly connected to a lead screw, the other end of the lead screw passes through the connecting frame and the placement plate in sequence and is rotatably connected to the inner wall of the connecting frame, the lead screw is threadedly connected to the inner wall of the placement plate, a slide rod is fixedly connected to the inner wall of the connecting frame, and the other end of the slide rod passes through the placement plate and is fixedly connected to the surface of the mounting platform.

[0010] In the above technical solution, preferably, the placement structure includes a placement plate slidably connected to the inner wall of the sliding cavity. The surface of the placement plate has two symmetrically distributed insertion holes. A detachable mounting rod is provided inside the insertion hole. The lower end of the mounting rod passes through the insertion hole, and a fixing block is fixedly connected to the top of the mounting rod.

[0011] In the above technical solution, preferably, the fixing block has two symmetrically distributed mounting cavities inside, the inner wall of the mounting cavity is slidably connected to a slider, the surface of the slider is fixedly connected to an adjusting rod, the other end of the adjusting rod passes through the fixing block and is fixedly connected to a resistance-increasing block, the resistance-increasing block is a rubber material component.

[0012] In the above technical solution, preferably, a knob is provided at the bottom of the mounting rod, and a rotating shaft is fixedly connected to the top of the knob. The upper end of the rotating shaft passes through the mounting rod and the fixing block in sequence and is rotatably connected to the inner wall of the fixing block. Two connecting ropes are fixedly connected to the surface of the rotating shaft and are symmetrically distributed. The other end of the connecting rope is fixedly connected to the surface of the adjacent slider.

[0013] In the above technical solution, preferably, a first spring is fixedly connected to the surface of the slider, and the other end of the first spring is fixedly connected to the inner wall of the sliding cavity.

[0014] In the above technical solution, preferably, the other side of the base is connected to a water inlet pipe and a drain pipe from top to bottom, a baffle for shielding the connecting frame is slidably connected to one side of the connecting frame, two mounting shells connected to the connecting frame are fixedly connected to the top of the connecting frame, a fan is provided inside the mounting shell, and a filter screen is embedded in the top of the mounting shell.

[0015] In the above technical solution, preferably, the top of the fixing plate is provided with an electric push rod for adjusting the height of the fixing plate, the top of the electric push rod is fixedly connected to the inner wall of the connecting frame, and the output end of the electric push rod is fixedly connected to the top of the fixing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a spraying structure, the height of the spray gun can be synchronously adjusted by adjusting the position of the trigger rod under the combined action of the trigger rod, fixed cylinder, slide plate, second spring, third spring, sliding plate and sliding rod. Since the height between the spraying center of the spray gun and the placement plate is half the height between the bottom of the ball and the placement plate, and there are two adjusting cylinders with the inner diameter of the fixed cylinder being 1:1 to the inner diameter of the adjusting cylinder, the movement distance of the trigger rod is twice that of the sliding rod, thus ensuring that the spray gun is always located at the spraying center of the profile and ensuring the spraying effect.

[0018] 2. By setting up a placement structure, the mounting rod can be removed after spraying by pushing it through the bottom of the placement plate, thus ensuring that the uncured paint will not be affected during the removal process. Furthermore, the installation and removal of the profile is simple, and the position of the adjustment rod can be adjusted by simply rotating the knob. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram showing the distribution of the drain pipe and water inlet pipe of the present invention;

[0022] Figure 4 This is a schematic diagram of the placement structure of the present invention;

[0023] Figure 5 for Figure 4 Enlarged view of A in the middle;

[0024] Figure 6 This is a schematic diagram of the spraying structure of the present invention.

[0025] In the diagram: 1. Base; 101. Connecting frame; 102. Mounting platform; 103. Baffle; 104. Mounting plate; 105. Water inlet pipe; 106. Drain pipe; 2. Placement structure; 201. Motor; 202. Lead screw; 203. Slide rod; 204. Placement plate; 205. Knob; 206. Resistance block; 207. Adjusting rod; 208. Slider; 209. Rotating shaft; 210. Connecting rope; 211. Installation... 212. Cavity; 213. First spring; 214. Mounting rod; 3. Spraying structure; 301. Fixing plate; 302. Second spring; 303. Conduit; 304. Connecting plate; 305. Adjusting cylinder; 306. Spray gun; 307. Third spring; 308. Sliding plate; 309. Sliding rod; 310. Ball bearing; 311. Fixing cylinder; 312. Trigger rod; 4. Mounting housing; 401. Filter screen; 402. Fan. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0028] like Figures 1-6 The painting device for processing aluminum alloy door and window accessories shown includes a base 1, a connecting frame 101 fixedly connected to the top of the base 1, a mounting platform 102 provided on one side of the base 1, two symmetrically distributed mounting plates 104 fixedly connected to the inner wall of the base 1, uniformly distributed through holes opened on the surface of the mounting plates 104, a placement structure 2 provided between the two mounting plates 104, a spraying structure 3 provided on the inner side of the connecting frame 101, and a sliding cavity formed between the two mounting plates 104.

[0029] The spraying structure 3 includes a fixing plate 301 disposed inside the connecting frame 101. A fixing cylinder 311 is fixedly connected to the bottom of the fixing plate 301. Two spray guns 306 are disposed below the fixing plate 301 and are symmetrically distributed with the fixing cylinder 311 as the center.

[0030] An adjusting cylinder 305 is provided above the spray gun 306. A connecting plate 304 is fixedly connected to the surface of the adjusting cylinder 305. The other end of the connecting plate 304 is fixedly connected to the surface of the fixed cylinder 311. A sliding plate 308 is slidably connected to the inner wall of the adjusting cylinder 305. A third spring 307 is fixedly connected between the bottom of the sliding plate 308 and the inner bottom wall of the adjusting cylinder 305. A sliding rod 309 is fixedly connected to the bottom of the sliding plate 308. The lower end of the sliding rod 309 passes through the adjusting cylinder 305 and is fixedly connected to the surface of the spray gun 306.

[0031] The top of the adjusting cylinder 305 is connected to the conduit 303, and the other end of the conduit 303 is connected to the inside of the fixed cylinder 311;

[0032] A sliding plate is slidably connected to the inner wall of the fixed cylinder 311. Hydraulic oil is filled between the bottom of the sliding plate and the fixed cylinder 311, and between the top of the sliding plate 308 and the adjusting cylinder 305. A trigger rod 312 is fixedly connected to the bottom of the sliding plate. The lower end of the trigger rod 312 passes through the fixed cylinder 311. A ball bearing 310 is provided at the bottom of the trigger rod 312. The ball bearing 310 is rotatably connected to the inner wall of the trigger rod 312. A second spring 302 is fixedly connected between the sliding plate and the inner wall of the fixed cylinder 311.

[0033] A sliding plate is slidably connected to the inner wall of the fixed cylinder 311. Hydraulic oil is filled between the bottom of the sliding plate and the fixed cylinder 311, and between the top of the sliding plate 308 and the adjusting cylinder 305. A trigger rod 312 is fixedly connected to the bottom of the sliding plate. The lower end of the trigger rod 312 passes through the fixed cylinder 311. A ball bearing 310 is provided at the bottom of the trigger rod 312. The ball bearing 310 is rotatably connected to the inner wall of the trigger rod 312. A second spring 302 is fixedly connected between the sliding plate and the inner wall of the fixed cylinder 311.

[0034] First, move the profile between the two spray guns 306 using the placement structure 2. Then, move the trigger rod 312 upward so that the ball bearing 310 at the bottom of the trigger rod 312 can contact the top of the profile. After adjustment, move the profile below the ball bearing 310. Then, move the profile using the placement structure 2 for spraying.

[0035] The profile is slid along the inner wall of the sliding cavity through the placement structure 2 so that it can pass between the two spray guns 306 to achieve the spraying effect. During this process, the top of the profile can squeeze the ball 310, causing the trigger rod 312 to slide along the inner wall of the fixed cylinder 311 through the slide plate and compress the second spring 302. At the same time, it can increase the space volume between the bottom of the slide plate and the inner wall of the fixed cylinder 311. At this time, under the action of the third spring 307, the sliding plate 308 and the sliding rod 309 can be moved upward to achieve the effect of synchronous adjustment of the spray guns 306. During this process, the hydraulic oil inside the adjusting cylinder 305 can be squeezed through the conduit 303 and introduced into the internal storage of the fixed cylinder 311.

[0036] The placement structure 2 includes a placement plate 204 that is slidably connected to the inner wall of the sliding cavity. The surface of the placement plate 204 has two symmetrically distributed insertion holes. A detachable mounting rod 213 is provided inside the insertion hole. The lower end of the mounting rod 213 passes through the insertion hole, and a fixing block is fixedly connected to the top of the mounting rod 213.

[0037] The top of the fixed plate 301 is provided with an electric push rod for adjusting the height of the fixed plate 301. The top of the electric push rod is fixedly connected to the inner wall of the connecting frame 101, and the output end of the electric push rod is fixedly connected to the top of the fixed plate 301.

[0038] The spray gun 306 can spray the surface of the door and window profile between the two spray guns 306. During the spraying process, the fan 402 can be started to guide the outside air through the filter screen 401 and blow it from top to bottom into the inside of the connecting frame 101. The scattered paint spray can be guided into the inside of the base 1 through the sliding cavity and through hole. Water can be injected into the inside of the base 1 through the water inlet pipe 105, so that the paint can float on the water surface for easy discharge through the drain pipe 106.

[0039] like Figures 1-6 As shown, the inner diameter of the fixed cylinder 311 is 1:1 to the inner diameter of the adjusting cylinder 305, which ensures that the moving distance of the trigger rod 312 is twice that of the sliding rod 309, thereby ensuring that the spray gun 306 is always located at the spraying center of the profile and ensuring the spraying effect.

[0040] like Figures 1-6 As shown, the placement structure 2 includes a motor 201 mounted on the top of the mounting platform 102. The output shaft of the motor 201 is fixedly connected to a lead screw 202. The other end of the lead screw 202 passes through the connecting frame 101 and the placement plate 204 in sequence and is rotatably connected to the inner wall of the connecting frame 101. The lead screw 202 is threadedly connected to the inner wall of the placement plate 204. A slide rod 203 is fixedly connected to the inner wall of the connecting frame 101. The other end of the slide rod 203 passes through the placement plate 204 and is fixedly connected to the surface of the mounting platform 102.

[0041] The fixed block has two symmetrically distributed mounting cavities 211 inside. A slider 208 is slidably connected to the inner wall of the mounting cavity 211. An adjusting rod 207 is fixedly connected to the surface of the slider 208. The other end of the adjusting rod 207 passes through the fixed block and is fixedly connected to a resistance-increasing block 206, which is a rubber material component.

[0042] A knob 205 is provided at the bottom of the mounting rod 213. A rotating shaft 209 is fixedly connected to the top of the knob 205. The upper end of the rotating shaft 209 passes through the mounting rod 213 and the fixing block in sequence and is rotatably connected to the inner wall of the fixing block. Two symmetrically distributed connecting ropes 210 are fixedly connected to the surface of the rotating shaft 209. The other end of the connecting rope 210 is fixedly connected to the surface of the adjacent slider 208.

[0043] A first spring 212 is fixedly connected to the surface of the slider 208, and the other end of the first spring 212 is fixedly connected to the inner wall of the sliding cavity.

[0044] In this design, the height between the spraying center of the spray gun 306 and the placement plate 204 is half the height between the bottom of the ball bearing 310 and the placement plate 204. Since there are two adjusting cylinders 305, and the ratio of the inner diameter of the fixed cylinder 311 to the inner diameter of the adjusting cylinder 305 is 1:1, the upward movement distance of the trigger rod 312 is twice that of the sliding rod 309. This ensures that the spray gun 306 remains at the spraying center of the profile. For example, if the distance between the bottom of the ball bearing 310 and the placement plate 204 is 10cm, and the distance between the spraying center of the spray gun 306 and the placement plate 204 is 5cm, and the profile height is 13cm, then the ball bearing 310 is in contact with the top surface of the profile. Adjusting the trigger rod 312 upward by 3cm and the sliding rod 309 upward by 1.5cm results in the spraying center of the spray gun 306 being 6.5cm high, which is the center position of the profile. This effectively improves the spraying effect. Figure 6 The second spring 302 is shown in its maximum contracted state, and the third spring 307 is shown in its maximum extended state.

[0045] The adjustment method of the trigger rod 312 should be selected according to the profile specifications. If the profile height is higher than the position of the ball 310, manual adjustment can be used to make the ball 310 contact the top of the profile and then close the baffle 103 for subsequent spraying. If the difference between the profile height and the bottom of the ball 310 is small (within 1cm, the diameter of the ball 310 is 3cm, and the length of the ball 310 extending through the trigger rod 312 is 1cm), the profile can be moved directly to squeeze the ball 310 through the end of the profile to achieve adaptive adjustment of the trigger rod 312.

[0046] Rotating the knob 205 drives the rotating shaft 209 to rotate synchronously. During this process, the connecting rope 210 is wound up, which pulls the slider 208 to move synchronously and compresses the first spring 212. During this process, the adjusting rod 207 retracts into the mounting cavity 211, thereby reducing the length of the two adjusting rods 207 and making it easier to insert into the slot of the profile. Then, the knob 205 is released to release the tightening of the rotating shaft 209. At this time, the first spring 212 can drive the slider 208 and the adjusting rod 207 to reset. Thus, the adjusting rod 207, together with the resistance block 206, fixes the inside of the slot of the profile. Then, the motor 201 drives the lead screw 202 to rotate, thereby driving the placement plate 204 to move, which in turn drives the profile to move synchronously to cooperate with the spraying structure 3 for spraying. The mounting rod 213 can be pushed upwards to gradually pass through the insertion hole from below the placement plate 204, thereby achieving the effect of separating the mounting rod 213 from the placement plate 204. During the separation process, the mounting rod 213 can also drive the profile to separate from the placement plate 204. During this process, there will be no direct contact with the profile, thus preventing contact with the paint layer on the profile surface during the removal process and affecting the painting effect.

[0047] Working principle: The profile is placed through the placement structure 2. First, the profile is moved between the two spray guns 306 through the placement structure 2. By moving the position of the trigger rod 312 upward, the ball bearing 310 at the bottom of the trigger rod 312 can contact the top of the profile. After adjustment, the profile can be moved below the ball bearing 310. Then, the profile can be moved through the placement structure 2 for spraying. The profile is slid along the inner wall of the sliding cavity through the placement structure 2 so that it can pass between the two spray guns 306 to achieve the spraying effect. Since the inner diameter of the fixed cylinder 311 is 1:1 with the inner diameter of the adjusting cylinder 305, the moving distance of the trigger rod 312 is twice that of the sliding rod 309, thereby ensuring that the spray gun 306 is always located in the spraying center of the profile and ensuring the spraying effect.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A painting device for processing aluminum alloy door and window accessories, comprising a base (1), characterized in that, A connecting frame (101) is fixedly connected to the top of the base (1), and a mounting platform (102) is provided on one side of the base (1). Two mounting plates (104) are fixedly connected to the inner wall of the base (1) and are symmetrically distributed. The surface of the mounting plate (104) is provided with uniformly distributed through holes. A placement structure (2) is provided between the two mounting plates (104). A spraying structure (3) is provided on the inner side of the connecting frame (101). A sliding cavity is formed between the two mounting plates (104). The spraying structure (3) includes a fixing plate (301) disposed inside the connecting frame (101). A fixing cylinder (311) is fixedly connected to the bottom of the fixing plate (301). Two spray guns (306) are disposed below the fixing plate (301) and symmetrically distributed around the fixing cylinder (311). An adjusting cylinder (305) is disposed above the spray guns (306). A sliding plate (308) is slidably connected to the inner wall of the adjusting cylinder (305). The bottom of the sliding plate (308) is connected to the adjusting cylinder. A third spring (307) is fixedly connected between the inner bottom wall of the cylinder (305). A sliding rod (309) is fixedly connected to the bottom of the sliding plate (308). The lower end of the sliding rod (309) passes through the adjusting cylinder (305) and is fixedly connected to the surface of the spray gun (306). A guide tube (303) is connected to the top of the adjusting cylinder (305). The other end of the guide tube (303) is connected to the inside of the fixed cylinder (311). The ratio of the inner diameter of the fixed cylinder (311) to the inner diameter of the adjusting cylinder (305) is 1:

1. A connecting plate (304) is fixedly connected to the surface of the adjusting cylinder (305). The other end of the connecting plate (304) is fixedly connected to the surface of the fixed cylinder (311). A sliding plate is slidably connected to the inner wall of the fixed cylinder (311). Hydraulic oil is filled between the bottom of the sliding plate and the fixed cylinder (311) and between the top of the sliding plate (308) and the adjusting cylinder (305). A trigger rod (312) is fixedly connected to the bottom of the sliding plate. The lower end of the trigger rod (312) passes through the fixed cylinder (311). A ball bearing (310) is provided at the bottom of the trigger rod (312). The ball bearing (310) is rotatably connected to the inner wall of the trigger rod (312). A second spring (302) is fixedly connected between the sliding plate and the inner wall of the fixed cylinder (311).

2. The painting device for processing aluminum alloy door and window accessories according to claim 1, characterized in that, The placement structure (2) includes a motor (201) disposed on the top of the mounting platform (102). The output shaft of the motor (201) is fixedly connected to a lead screw (202). The other end of the lead screw (202) passes through the connecting frame (101) and the placement plate (204) in sequence and is rotatably connected to the inner wall of the connecting frame (101). The lead screw (202) is threadedly connected to the inner wall of the placement plate (204). A slide rod (203) is fixedly connected to the inner wall of the connecting frame (101). The other end of the slide rod (203) passes through the placement plate (204) and is fixedly connected to the surface of the mounting platform (102).

3. The painting device for processing aluminum alloy door and window accessories according to claim 2, characterized in that, The placement structure (2) includes a placement plate (204) slidably connected to the inner wall of the sliding cavity. The surface of the placement plate (204) has two symmetrically distributed insertion holes. The insertion holes are provided with a detachable mounting rod (213). The lower end of the mounting rod (213) passes through the insertion hole, and the top of the mounting rod (213) is fixedly connected to a fixing block.

4. The painting device for processing aluminum alloy door and window accessories according to claim 3, characterized in that, The fixed block has two symmetrically distributed mounting cavities (211) inside. A slider (208) is slidably connected to the inner wall of the mounting cavity (211). An adjusting rod (207) is fixedly connected to the surface of the slider (208). The other end of the adjusting rod (207) passes through the fixed block and is fixedly connected to a resistance-increasing block (206). The resistance-increasing block (206) is a rubber material component.

5. A painting device for processing aluminum alloy door and window accessories according to claim 4, characterized in that, The bottom of the mounting rod (213) is provided with a knob (205), and the top of the knob (205) is fixedly connected to a rotating shaft (209). The upper end of the rotating shaft (209) passes through the mounting rod (213) and the fixing block in sequence and is rotatably connected to the inner wall of the fixing block. Two connecting ropes (210) are fixedly connected to the surface of the rotating shaft (209) and are symmetrically distributed. The other end of the connecting rope (210) is fixedly connected to the surface of the adjacent slider (208).

6. A painting device for processing aluminum alloy door and window accessories according to claim 5, characterized in that, A first spring (212) is fixedly connected to the surface of the slider (208), and the other end of the first spring (212) is fixedly connected to the inner wall of the sliding cavity.

7. The painting device for processing aluminum alloy door and window accessories according to claim 1, characterized in that, The other side of the base (1) is connected to a water inlet pipe (105) and a drain pipe (106) from top to bottom. A baffle (103) for shielding the connecting frame (101) is slidably connected to one side of the connecting frame (101). Two mounting shells (4) are fixedly connected to the top of the connecting frame (101) and are connected to the connecting frame (101). A fan (402) is installed inside the mounting shell (4). A filter screen (401) is embedded in the top of the mounting shell (4).

8. A painting device for processing aluminum alloy door and window accessories according to claim 1, characterized in that, The top of the fixing plate (301) is provided with an electric push rod for adjusting the height of the fixing plate (301). The top of the electric push rod is fixedly connected to the inner wall of the connecting frame (101), and the output end of the electric push rod is fixedly connected to the top of the fixing plate (301).

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