Paint spraying and dust removing equipment for injection molded parts

Abstract

This invention discloses a dust removal device for spray painting of injection molded parts, relating to the field of electrostatic dust removal. It includes a dust collection box, a feed inlet at the top of the dust collection box, a part-carrying and moving device at the bottom of the inner wall of the dust collection box, and an integrated ionization dust removal device at the top of the inner wall of the dust collection box. The integrated ionization dust removal device includes a positioning frame at the top of the inner wall of the dust collection box, two spacing adjustment components symmetrically arranged on both sides of the positioning frame, an L-shaped plate at the actuating end of the spacing adjustment component, a distance measuring component on the outer wall of the L-shaped plate, and an angle adjustment component at the bottom of the L-shaped plate; one angle adjustment component is connected to an ion air nozzle at its actuating end, and the other angle adjustment component is connected to an airflow nozzle at its actuating end. This invention uses the integrated ionization dust removal device as its core, constructing a continuous coupling mechanism on the workpiece surface that first removes static electricity and then blows away dust. The instantaneous stripping airflow after the ion air eliminates static electricity is followed by blowing, fundamentally preventing secondary dust adsorption.

Description

Technical Field

[0001] This invention relates to the technical field of electrostatic dust removal, specifically to a dust removal device for spray painting of injection molded parts. Background Technology

[0002] Injection molded parts, as an important category of plastic products, are widely used in automotive components, electronic appliance housings, and daily necessities. After injection molding, the surface of the workpiece often has residual mold release agent, dust, and tiny particles attracted by electrostatic electricity. If painting is carried out directly, it will lead to reduced coating adhesion, surface granular defects, or even paint film peeling. Therefore, efficient dust removal of injection molded parts before painting is a key process to ensure coating quality.

[0003] In existing technologies, dust removal before painting injection molded parts often employs a process route combining ion air static elimination with compressed air blowing. A common approach involves fixing ion air bars and blowing nozzles within a dust collection chamber, with the workpiece passing through at a uniform speed on a conveyor line, sequentially eliminating static electricity and removing dust. However, this method has significant technical drawbacks: the relative positions and spray angles of the ion air nozzles and the airflow nozzles are fixed and cannot be dynamically adjusted according to changes in the workpiece's shape. When processing complex injection molded parts with curved surfaces, inclined surfaces, or deep cavities, the point of convergence and coupling of the two functional airflows on the workpiece surface may shift, resulting in insufficient static elimination in some areas before they are blown away, leading to secondary dust adsorption due to residual static electricity; or the stripping airflow may not accurately target areas that have already been statically eliminated, resulting in low dust removal efficiency. Furthermore, the fixed nozzle structure struggles to accommodate the process requirements of bidirectional reciprocating workpiece processing, easily disrupting the "static elimination first, dust blowing later" sequence during reversal movement, creating cleaning dead zones.

[0004] Based on the above situation, how to provide a dust removal device that can adaptively adjust the angle between the ion wind and the airflow nozzle and ensure real-time coupling of the flow field on the surface of complex curved workpieces has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a dust removal device for spray painting of injection molded parts, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device for spray painting of injection molded parts, comprising a dust removal box, a feed inlet located at the top of the dust removal box, an injection molded part carrying and moving device located at the bottom of the inner wall of the dust removal box, and an integrated ionization dust removal device located at the top of the inner wall of the dust removal box. The integrated ionization dust removal device includes a positioning frame located at the top of the inner wall of the dust removal box, two spacing adjustment components symmetrically arranged on both sides of the positioning frame, an L-shaped plate located at the execution end of the spacing adjustment component, a distance measuring component located on the outer wall of the L-shaped plate, and an angle adjustment component located at the bottom of the L-shaped plate; one of the angle adjustment components is connected to an ion air nozzle at its execution end, and the other angle adjustment component is connected to an airflow nozzle at its execution end; during dust removal of the injection molded parts, the controller receives the distance information between the injection molded parts measured by the distance measuring component and triggers the angle adjustment component according to the distance information to adjust the angle between the ion air nozzle and the airflow nozzle.

[0007] Preferably, the angle adjustment component includes a first shaft rotatably connected to the bottom of the L-shaped plate via a bearing seat, a first worm gear mounted on the first shaft, a first motor mounted on the bottom of the L-shaped plate, and a first worm located at the output end of the first motor and meshing with the first worm gear; it also includes a first gear mounted on the first shaft, an encoder located at the bottom of the L-shaped plate, and a second gear located at the input end of the encoder and meshing with the first gear; an ion air nozzle is mounted on the first shaft. In this preferred embodiment, the worm gear has a large reduction ratio and reverse self-locking characteristics, which can resist the airflow reaction force to prevent the nozzle from shaking and deviating, ensuring high-precision angle adjustment; at the same time, the encoder transmits the rotation angle back in real time, realizing precise closed-loop control of the nozzle attitude.

[0008] Preferably, the spacing adjustment component includes a first linear module disposed on the outer wall of the positioning frame, and the actuating end of the first linear module is connected to an L-shaped plate. In this preferred embodiment, the linear module drives the L-shaped plate to slide as a whole to adjust the reference distance between the nozzle and the workpiece.

[0009] Preferably, the ranging component includes an infrared distance sensor disposed on the outer wall of the L-shaped plate. In this preferred embodiment, an infrared distance sensor is selected as a non-contact detection unit, which has a fast response speed and strong anti-interference ability. It can accurately convert the undulations of the workpiece surface into electrical signals and feed them back to the controller in real time, providing accurate criteria for dynamic adjustment actions.

[0010] Preferably, the device further includes a reversing adjustment component mounted on the positioning frame. The reversing adjustment component includes a drive motor mounted on the positioning frame with its actuating end penetrating the positioning frame, and a U-shaped frame mounted on the actuating end of the drive motor; the first linear module is fixed to the outer wall of the U-shaped frame. In this preferred embodiment, the reversing adjustment component can not only adjust the overall incident direction of the blowing airflow, but also freely reverse the front and rear positions of the ion air nozzle and the airflow nozzle, ensuring that the injection molded part always follows the process sequence of first removing static electricity and then blowing dust during reciprocating movement, leaving no cleaning dead corners.

[0011] Preferably, the system further includes an auxiliary dust-collecting component disposed on the outer wall of the L-shaped plate at the top of the airflow nozzle. The auxiliary dust-collecting component includes an extension plate disposed on the outer wall of the L-shaped plate, a funnel-shaped dust collection box inclined at the bottom of the extension plate, and a suction pipe with one end connected to the funnel-shaped dust collection box and the other end extending to the outside of the dust collection box. In this preferred embodiment, the auxiliary dust-collecting component can immediately suck up the dust using nearby negative pressure the moment it is peeled off, creating a simultaneous blowing and suction dust-collecting effect, effectively suppressing dust escape and reducing the burden on the main dust collection system.

[0012] Preferably, the outer wall of the L-shaped plate at the top of the ion air nozzle is equipped with an ion air generator. The input end of the ion air generator is connected to a first air source pipe, and the output end of the ion air generator is connected to the ion air nozzle through a pipe. The airflow nozzle is connected to a second air source pipe. Flow sensors are installed on both the first and second air source pipes. In this preferred embodiment, the independent dual-air path design ensures that the two functional airflows do not interfere with each other, while the real-time monitoring of the flow sensors ensures that the gas flow rates for purging and static electricity removal remain stable within the process parameters.

[0013] Preferably, the injection molded part carrying and moving device includes a three-axis moving component disposed at the bottom of the inner wall of the dust collector, a displacement plate disposed at the actuating end of the three-axis moving component, a tilt adjustment component disposed at the top of the displacement plate, an adjustment plate disposed at the actuating end of the tilt adjustment component, and an injection molded part clamping component disposed at the top of the adjustment plate; the three-axis moving component includes an X-axis linear module disposed at the bottom of the inner wall of the dust collector, an X-axis moving plate disposed at the actuating end of the X-axis linear module, a Y-axis linear module disposed on the X-axis moving plate, a Y-axis moving plate disposed at the actuating end of the Y-axis linear module, and a Z-axis telescopic cylinder disposed on the Y-axis moving plate; the actuating end of the Z-axis telescopic cylinder is connected to the bottom of the displacement plate. In this preferred embodiment, the three-axis moving component provides the workpiece with flexible transport capability in three-dimensional space.

[0014] Preferably, the tilt adjustment component includes a second rotating shaft fixed to the bottom of the adjustment plate and rotatably connected to the top of the displacement plate via a bearing seat, a second worm gear disposed on the second rotating shaft, a second motor disposed on the displacement plate, and a second worm located at the actuating end of the second motor and meshing with the second worm gear; the second rotating shaft is parallel to the X-axis linear module. In this preferred embodiment, when the workpiece travels along the X-axis, the workpiece can be tilted in real time according to the surface inclination, so that the inclined or curved surface to be cleaned is presented to the nozzle in the best facing posture, greatly improving the cleaning ability of deep cavities and chamfered areas of irregularly shaped parts.

[0015] Preferably, the injection molding part clamping component includes a bidirectional linear module disposed on the top of the adjusting plate, two clamping plates disposed on the actuating end of the bidirectional linear module, and a plurality of flexible protrusions linearly arranged on the outer wall of the clamping plates. In this preferred embodiment, the flexible protrusions can adaptively deform under pressure, closely conforming to the irregular shape of the injection molding part, facilitating the stable fixing of the injection molding part.

[0016] In summary, the present invention has the following main beneficial effects: This invention addresses the technical shortcomings of traditional dust removal equipment when dealing with complex curved injection molded parts, such as poor flow field coupling, easy generation of secondary electrostatic adsorption, and cleaning dead zones. It proposes an integrated adaptive control and multi-axis linkage pre-painting dust removal solution. The solution uses an integrated ionization dust removal device as its core, constructing a continuous coupling mechanism on the workpiece surface that first removes static electricity and then blows away dust. The instantaneous stripping airflow after the ionized wind eliminates static electricity immediately follows the blowing, fundamentally preventing secondary dust adsorption.

[0017] The core of this invention lies in establishing a closed-loop control system based on real-time distance measurement feedback. Utilizing an infrared distance sensor to precisely perceive the surface undulations of the workpiece, the controller can independently adjust the spray angles of the ion air nozzle and the airflow nozzle, dynamically changing the convergence angle of the two airflows to ensure that the functional coupling point is always precisely locked onto the workpiece surface. Combined with the self-locking characteristics of the worm gear and the precise feedback of the encoder, this adaptive mechanism completely overcomes the problem of the drastic drop in performance of traditional fixed nozzles on irregular curved surfaces. Simultaneously, the three-axis moving components and tilt adjustment components provide the workpiece with spatial transport and pitch / tilt capabilities, allowing difficult-to-process areas such as deep cavities and chamfers to be presented in the optimal posture. Combined with the free reversal of the nozzle position by the adjustment component, it ensures the strict execution of the process sequence during reciprocating machining, achieving true coverage without dead angles.

[0018] In terms of environmental control, the funnel-shaped dust collection box near the airflow nozzle forms a follow-up dust collection structure that blows and sucks at the same time. It removes dust with negative pressure the moment it is peeled off, effectively suppressing dust escape. It complements the main dust collection system and significantly improves the cleanliness inside the box. Attached Figure Description

[0019] Figure 1This is an isometric view of the overall structure of the dust removal equipment of the present invention; Figure 2 This is an exploded view of the overall structure of the dust removal equipment of the present invention; Figure 3 This is an exploded view of the integrated ionization dust removal device of the present invention; Figure 4 This is an exploded view of the auxiliary dust collection component structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the image; Figure 6 This is an isometric view of the injection molded part bearing and moving device structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the image; Figure 8 This is a cross-sectional view of the overall structure of the dust removal equipment of the present invention; Figure 9 This is a cross-sectional view of the integrated ionization dust removal device of the present invention; Figure 10 For the present invention Figure 9 Enlarged view of the structure at point C.

[0020] Figure Descriptions: 10. Dust collector; 11. Feed inlet; 20. Injection molded part carrying and moving device; 21. Three-axis moving component; 211. X-axis linear module; 212. X-axis moving plate; 213. Y-axis linear module; 214. Y-axis moving plate; 215. Z-axis telescopic cylinder; 22. Displacement plate; 23. Tilt adjustment component; 231. Second rotating shaft; 232. Second worm gear; 233. Second motor; 234. Second worm; 24. Adjusting plate; 25. Injection molded part clamping component; 251. Bidirectional linear module; 252. Clamping plate; 253. Flexible protrusion; 30. Integrated ionization dust removal device; 31. Positioning frame; 32. Spacing adjustment component; 321. 33. Straight-line module; 34. L-shaped plate; 35. Distance measuring component; 36. Infrared distance sensor; 37. Angle adjustment component; 38. First shaft; 39. First worm gear; 30. First motor; 31. First worm; 32. First gear; 33. Encoder; 34. Second gear; 35. Ionizing nozzle; 36. Ionizing generator; 37. First air supply pipe; 38. Flow sensor; 39. Airflow nozzle; 30. Second air supply pipe; 31. Rotation adjustment component; 32. Drive motor; 33. U-shaped frame; 34. Auxiliary dust collection component; 35. Extension plate; 36. Funnel-shaped dust collection box; 37. Dust collection pipe. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] The embodiments of the present invention will now be described.

[0023] Please refer to the appendix for details. Figure 1 , 2 As shown in Figures 8 and 9, in a preferred embodiment of the present invention, a dust removal device for spray painting of injection molded parts includes a dust collection box 10, an inlet 11 disposed at the top of the dust collection box 10, an injection molded part carrying and moving device 20 disposed at the bottom of the inner wall of the dust collection box 10, and an integrated ionization dust removal device 30 disposed at the top of the inner wall of the dust collection box 10. The integrated ionization dust removal device 30 includes a positioning frame 31 disposed at the top of the inner wall of the dust collection box 10, two spacing adjustment components 32 symmetrically disposed on both sides of the positioning frame 31, and a spacing adjustment component 32 disposed at the top of the positioning frame 31. The L-shaped plate 33 at the execution end, the distance measuring component 34 on the outer wall of the L-shaped plate 33, and the angle adjusting component 35 at the bottom of the L-shaped plate 33; one of the angle adjusting components 35 is connected to the ion air nozzle 36 at the execution end, and the other of the angle adjusting components 35 is connected to the airflow nozzle 37 at the execution end; when dust removal of the injection molded part, the controller receives the distance information between the injection molded part measured by the distance measuring component 34, and triggers the angle adjusting component 35 according to the distance information to adjust the angle between the ion air nozzle 36 and the airflow nozzle 37.

[0024] It should be noted that, in this embodiment, during the dust removal process of injection molded parts, after the gate on the feed port 11 is opened by the cylinder, the injection molded parts to be dusted can be placed on the injection molded parts carrying and moving device 20 by the robotic arm from the feed port 11. The injection molded parts carrying and moving device 20 clamps and fixes the injection molded parts to be dusted and drives the injection molded parts to be dusted through the integrated ionization dust removal device 30 to achieve the dust removal process. During dust removal of injection molded parts, the controller first receives distance information from the distance measuring components 34 on the two L-shaped plates 33, measuring the distance to the surface of the injection molded part. Based on a preset control strategy, the controller determines whether the current distance matches the pre-stored process parameters. When the distance changes due to variations in the workpiece's shape, the controller triggers the angle adjustment component 35 to independently adjust the spray angles of the ion air nozzle 36 and the airflow nozzle 37, dynamically changing the angle between them to ensure that the intersection point of the two functional airflows on the workpiece surface is always at the optimal position. This achieves a continuous, electrostatic-free, and highly efficient dust removal effect, where the ion air immediately follows the stripping air after the initial sweep. This adaptive adjustment mechanism overcomes the problem of poor flow field coupling when traditional fixed-angle nozzles face complex curved workpieces. The controller's adjustment strategy is as follows: Pre-calibrated experimentally, a 'distance-angle' mapping database is established and stored in the controller's memory for different workpiece distances H and surface curvatures, ensuring optimal coupling between the ion wind and airflow on the workpiece surface. During operation, the controller receives distance data from the infrared distance sensor 341 in real time. Through table lookup or interpolation calculations, it determines the target angles that the ion wind nozzle 36 and the airflow nozzle 37 should achieve. Then, it drives the corresponding first motor 353 to rotate to the target angle, forming a closed-loop control. For example, when a workpiece depression increases the distance H, the controller controls the two nozzles to rotate towards each other, reducing the airflow convergence angle and ensuring precise coupling of the two airflows on the depressed surface.

[0025] Please refer to the appendix for details. Figure 3 , 4As shown in Figures 5, 9, and 10, in another preferred embodiment of the present invention, the angle adjustment component 35 includes a first shaft 351 rotatably connected to the bottom of the L-shaped plate 33 via a bearing seat, a first worm gear 352 disposed on the first shaft 351, a first motor 353 disposed at the bottom of the L-shaped plate 33, and a first worm 354 disposed at the output end of the first motor 353 and meshing with the first worm gear 352; it also includes a first gear 355 disposed on the first shaft 351, and a first gear 354 disposed at the bottom of the L-shaped plate 33. The encoder 356 and a second gear 357 located at the input end of the encoder 356 and meshing with the first gear 355; an ion air nozzle 36 is provided on the first shaft 351; the spacing adjustment component 32 includes a first linear module 321 located on the outer wall of the positioning frame 31, the execution end of the first linear module 321 being connected to an L-shaped plate 33; the ranging component 34 includes an infrared distance sensor 341 located on the outer wall of the L-shaped plate 33, and also includes a rotation adjustment component 38 located on the positioning frame 31. The adjustment component 38 includes a drive motor 381 mounted on the positioning frame 31 and having its actuating end penetrating the positioning frame 31, and a U-shaped frame 382 mounted on the actuating end of the drive motor 381; the first linear module 321 is fixed to the outer wall of the U-shaped frame 382, ​​and also includes an auxiliary dust collection component 39 mounted on the outer wall of the L-shaped plate 33 at the top of the airflow nozzle 37, the auxiliary dust collection component 39 including an extension plate 391 mounted on the outer wall of the L-shaped plate 33, and a funnel-shaped dust collection box 392 inclinedly mounted at the bottom of the extension plate 391. The ion air nozzle 36 has a suction pipe 393 with one end connected to the funnel-shaped dust collection box 392 and the other end extending to the outside of the dust collection box 10. The outer wall of the L-shaped plate 33 at the top of the ion air nozzle 36 is provided with an ion air generator 361. The input end of the ion air generator 361 is connected to the first air source pipe 362, and the output end of the ion air generator 361 is connected to the ion air nozzle 36 through a pipe. The airflow nozzle 37 is connected to the second air source pipe 371. Both the first air source pipe 362 and the second air source pipe 371 are provided with flow sensors 363.

[0026] It should be noted that, in this embodiment, when the spacing adjustment component 32 is working, the first linear module 321 is activated. The first linear module 321 can drive the L-shaped plate 33 and all the components installed on it to move along the slide rail direction, thereby adjusting the reference working distance between the nozzle and the injection molded part over a wide range. Furthermore, when the ranging component 34 is working, the infrared distance sensor 341 is fixedly installed on the outer wall of the L-shaped plate 33, with its detection direction vertically downward, and it feeds back accurate distance data to the controller in real time, serving as the basis for the coordinated action of the spacing adjustment component 32 and the angle adjustment component 35. Furthermore, when the angle adjustment component 35 is working, when the first motor 353 is running, the output end of the first motor 353 drives the first worm gear 354 to rotate, and the first worm gear 354 drives the first worm wheel 352 and the first shaft 351 to rotate, so as to achieve a large reduction ratio and high precision angle adjustment, and has a self-locking function to prevent the nozzle angle from shifting under the reaction force of the airflow. When the first shaft 351 rotates, it drives the input end of the encoder 356 to rotate through the first gear 355 and the second gear 357. The controller can read the value of the encoder 356 in real time, accurately know and control the current angle of the ion wind nozzle 36 or the airflow nozzle 37. Furthermore, when the ion air nozzle 36 and the airflow nozzle 37 are working, the first air source pipe 362 and the second air source pipe 371 are both connected to the air source system. After the air source system is turned on, the airflow enters the ion air generator 361 through the first air source pipe 362 and forms ion air in the ion air generator 361. The ion air enters the ion air nozzle 36 through the pipe and is ejected through the ion air nozzle 36. The airflow enters the airflow nozzle 37 through the second air source pipe 371 and is ejected through the airflow nozzle 37 to achieve dust removal. Flow sensors 363 are installed on both the first air source pipe 362 and the second air source pipe 371 to monitor the flow rate of the two airflows in real time and ensure that they work within the set parameters. Furthermore, when the adjustment component 38 is working, when the drive motor 381 rotates, it will drive the entire U-shaped frame 382 to rotate. The purpose of rotating the U-shaped frame 382 is twofold: firstly, to adjust the blowing angle of the ion air nozzle 36 and the airflow nozzle 37 during dust removal; and secondly, to enable the free rotation of the positions of the ion air nozzle 36 and the airflow nozzle 37 so that dust removal and blowing can be achieved during the reciprocating movement of the injection molded part. Furthermore, when the auxiliary dust collection component 39 is working, the constricted end of the funnel-shaped dust collection box 392 is connected to a dust collection pipe 393. The other end of the dust collection pipe 393 passes through the side wall of the dust collection box 10 and is connected to an external industrial dust collector. During operation, the dust dislodged by the airflow nozzle 37 is immediately sucked away by the nearby funnel-shaped dust collection box 392 under negative pressure, complementing the main dust collection system on the outer wall of the dust collection box 10 and effectively suppressing dust.

[0027] Please refer to the appendix for details. Figure 2 , 6As shown in Figure 7, in another preferred embodiment of the present invention, the injection molded part carrying and moving device 20 includes a three-axis moving component 21 disposed at the bottom of the inner wall of the dust collection box 10, a displacement plate 22 disposed at the execution end of the three-axis moving component 21, a tilt adjustment component 23 disposed at the top of the displacement plate 22, an adjustment plate 24 disposed at the execution end of the tilt adjustment component 23, and an injection molded part clamping component 25 disposed at the top of the adjustment plate 24; the three-axis moving component 21 includes an X-axis linear module 211 disposed at the bottom of the inner wall of the dust collection box 10, an X-axis moving plate 212 disposed at the execution end of the X-axis linear module 211, a Y-axis linear module 213 disposed on the X-axis moving plate 212, a Y-axis moving plate 214 disposed at the execution end of the Y-axis linear module 213, and a Y-axis moving plate 214 disposed on the Y-axis moving plate 214. Z-axis telescopic cylinder 215; the actuator of the Z-axis telescopic cylinder 215 is connected to the bottom of the displacement plate 22; the tilt adjustment component 23 includes a second rotating shaft 231 fixed to the bottom of the adjustment plate 24 and rotatably connected to the top of the displacement plate 22 via a bearing seat, a second worm gear 232 on the second rotating shaft 231, a second motor 233 on the displacement plate 22, and a second worm 234 on the actuator of the second motor 233 and meshing with the second worm gear 232; the second rotating shaft 231 is parallel to the X-axis linear module 211; the injection molding clamping component 25 includes a bidirectional linear module 251 on the top of the adjustment plate 24, two clamping plates 252 on the actuator of the bidirectional linear module 251, and a plurality of flexible protrusions 253 linearly arrayed on the outer wall of the clamping plates 252.

[0028] It should be noted that, in this embodiment, when the three-axis moving component 21 is working, the X-axis linear module 211 actuator drives the X-axis moving plate 212 to move, the Y-axis linear module 213 actuator drives the Y-axis moving plate 214 to move, and the Z-axis telescopic cylinder 215 actuator drives the displacement plate 22 to move. Through the movement of the three linear axes X, Y, and Z, the displacement plate 22 can be driven to any point in the space inside the dust collection box 10. Furthermore, when the tilt adjustment component 23 is working, when the second motor 233 rotates, it drives the second worm wheel 232 and the second rotating shaft 231 to rotate through the second worm 234, which can drive the adjustment plate 24 to adjust the pitch angle in real time around the X-axis. When the injection molded part passes under the nozzle along the X-axis, the rotation of the adjusting plate 24 around the X-axis can optimally present the inclined area of ​​the workpiece to the nozzle, so as to achieve thorough cleaning of the workpiece surface. Furthermore, during operation, to securely clamp and protect the surface of the injection molded part, each clamping plate 252 has multiple flexible protrusions 253 arranged in a linear array on its clamping surface. These protrusions can be made of rubber or polyurethane. During clamping, the bidirectional linear module 251 drives the two clamping plates 252 to move closer to each other. The flexible protrusions 253 first contact the injection molded part and generate elastic deformation, adaptively conforming to the shape of the workpiece surface, providing uniform and non-destructive clamping force, ensuring the workpiece remains stable throughout the multi-axis motion and purging process.

[0029] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A dust removal device for spray painting of injection molded parts, comprising a dust collection box (10), a feed inlet (11) disposed at the top of the dust collection box (10), an injection molded part carrying and moving device (20) disposed at the bottom of the inner wall of the dust collection box (10), and an integrated ionization dust removal device (30) disposed at the top of the inner wall of the dust collection box (10), characterized in that, The integrated ionization dust removal device (30) includes a positioning frame (31) located on the top of the inner wall of the dust removal box (10), two spacing adjustment components (32) symmetrically arranged on both sides of the positioning frame (31), an L-shaped plate (33) located at the execution end of the spacing adjustment component (32), a distance measuring component (34) located on the outer wall of the L-shaped plate (33), and an angle adjustment component (35) located at the bottom of the L-shaped plate (33). One of the angle adjustment components (35) is connected to the ion air nozzle (36) at its actuating end, and the other angle adjustment component (35) is connected to the airflow nozzle (37) at its actuating end. When removing dust from injection molded parts, the controller receives the distance information between the injection molded parts measured by the distance measuring component (34) and triggers the angle adjustment component (35) according to the distance information to adjust the angle between the ion air nozzle (36) and the airflow nozzle (37).

2. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, The angle adjustment component (35) includes a first shaft (351) rotatably connected to the bottom of the L-shaped plate (33) via a bearing seat, a first worm gear (352) disposed on the first shaft (351), a first motor (353) disposed at the bottom of the L-shaped plate (33), and a first worm (354) disposed at the output end of the first motor (353) and meshing with the first worm gear (352). It also includes a first gear (355) disposed on the first shaft (351), an encoder (356) disposed at the bottom of the L-shaped plate (33), and a second gear (357) disposed at the input end of the encoder (356) and meshing with the first gear (355). An ion air nozzle (36) is provided on the first shaft (351).

3. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, The spacing adjustment component (32) includes a first linear module (321) disposed on the outer wall of the positioning frame (31), and the execution end of the first linear module (321) is connected to an L-shaped plate (33).

4. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, The ranging component (34) includes an infrared distance sensor (341) disposed on the outer wall of the L-shaped plate (33).

5. The dust removal equipment for spray painting of injection molded parts according to claim 3, characterized in that, It also includes a turning adjustment component (38) disposed on the positioning frame (31), the turning adjustment component (38) including a drive motor (381) disposed on the positioning frame (31) and the execution end passing through the positioning frame (31), and a U-shaped frame (382) disposed on the execution end of the drive motor (381). The first linear module (321) is fixed to the outer wall of the U-shaped frame (382).

6. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, It also includes an auxiliary dust collection component (39) disposed on the outer wall of the L-shaped plate (33) at the top of the airflow nozzle (37). The auxiliary dust collection component (39) includes an extension plate (391) disposed on the outer wall of the L-shaped plate (33), a funnel-shaped dust collection box (392) disposed at the bottom of the extension plate (391), and a dust collection pipe (393) with one end connected to the funnel-shaped dust collection box (392) and the other end extending to the outside of the dust collection box (10).

7. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, The outer wall of the L-shaped plate (33) at the top of the ion air nozzle (36) is provided with an ion air generator (361). The input end of the ion air generator (361) is connected to the first air source pipe (362), and the output end of the ion air generator (361) is connected to the ion air nozzle (36) through a pipe. The airflow nozzle (37) is connected to the second air source pipe (371); Both the first gas source pipe (362) and the second gas source pipe (371) are equipped with flow sensors (363).

8. The dust removal equipment for spray painting of injection molded parts according to claim 1, characterized in that, The injection molded part carrying and moving device (20) includes a three-axis moving component (21) located at the bottom of the inner wall of the dust collection box (10), a displacement plate (22) located at the execution end of the three-axis moving component (21), a tilt adjustment component (23) located at the top of the displacement plate (22), an adjustment plate (24) located at the execution end of the tilt adjustment component (23), and an injection molded part clamping component (25) located at the top of the adjustment plate (24). The three-axis moving component (21) includes an X-axis linear module (211) disposed at the bottom of the inner wall of the dust collector (10), an X-axis moving plate (212) disposed at the execution end of the X-axis linear module (211), a Y-axis linear module (213) disposed on the X-axis moving plate (212), a Y-axis moving plate (214) disposed at the execution end of the Y-axis linear module (213), and a Z-axis telescopic cylinder (215) disposed on the Y-axis moving plate (214). The Z-axis telescopic cylinder (215) is connected to the bottom of the displacement plate (22) at its actuating end.

9. A dust removal device for spray painting of injection molded parts according to claim 8, characterized in that, The tilt adjustment component (23) includes a second rotating shaft (231) fixed to the bottom of the adjustment plate (24) and rotatably connected to the top of the displacement plate (22) via a bearing seat, a second worm gear (232) on the second rotating shaft (231), a second motor (233) on the displacement plate (22), and a second worm (234) on the actuating end of the second motor (233) and meshing with the second worm gear (232). The second rotating shaft (231) is parallel to the X-axis linear module (211).

10. A dust removal device for spray painting of injection molded parts according to claim 8, characterized in that, The injection molding clamping component (25) includes a bidirectional linear module (251) disposed on the top of the adjusting plate (24), two clamping plates (252) disposed on the execution end of the bidirectional linear module (251), and a plurality of flexible protrusions (253) linearly arranged on the outer wall of the clamping plates (252).

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