A spraying device for automobile injection molding parts

By designing a paint collection plate and a rotating cleaning component for the spraying device, the problem of residual paint dripping from the nozzle was solved, achieving efficient paint collection and surface cleaning of injection molded parts, thus improving the product quality of automotive injection molded parts.

CN117225632BActive Publication Date: 2026-05-29TAICANG TIANSILI PLASTICIZING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAICANG TIANSILI PLASTICIZING CO LTD
Filing Date
2023-10-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing spraying equipment often leaves paint residue on the nozzles after spraying, causing paint to drip onto automotive injection molded parts, affecting product quality, and cleaning is time-consuming and labor-intensive.

Method used

A spraying device for automotive injection molded parts has been designed, including components such as a spraying carrier, a stabilizing plate, a movable block, a cleaning fixing plate, and a paint collection plate. The paint collection plate collects dripping paint, and the rotating cleaning component cleans the surface of the injection molded parts to prevent paint and dust residue.

Benefits of technology

It effectively prevents paint from dripping onto injection molded parts, reduces cleaning workload, and improves product quality and surface smoothness.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117225632B_ABST
Patent Text Reader

Abstract

The application provides a kind of automobile injection molding piece spraying device, relating to automobile accessory processing equipment field, including: spraying carrier, the middle position of the top of spraying carrier is equipped with slot, and the side of the top of spraying carrier is equipped with stabilizing plate;The side of stabilizing plate is equipped with slot, and the top of stabilizing plate is equipped with cylinder, and the slot in the side of stabilizing plate is equipped with movable block slidingly;The top of movable block is connected with the output end of the cylinder of the top of stabilizing plate, and the side of movable block is equipped with small cylinder;The rear side of the top of spraying carrier is equipped with cleaning fixed plate;The side of cleaning fixed plate is equipped with aperture, and the inside of cleaning fixed plate is equipped with collecting piece by spring;The side end of collecting piece is equipped with two positioning tubes, by using paint collecting plate to collect paint dripping from the nozzle of spraying device, solve the problem that part of paint remaining on nozzle drips down when using existing spraying device.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts processing equipment technology, and in particular to a spraying device for automotive injection molded parts. Background Technology

[0002] Automotive injection molded parts are products made by heating, plasticizing, melting, and cooling plastic using an injection molding machine. Automotive injection molded parts are mainly used in the interior and exterior parts of automobiles. When using injection molded parts, they need to be painted using a spraying device to ensure that they match the appearance of the car.

[0003] When existing spraying equipment is used to paint automotive injection molded parts, some paint is easily left on the nozzles after the spraying equipment has finished painting the injection molded parts. The paint drips down and can easily drip onto irregularly shaped injection molded parts, affecting the product quality of automotive injection molded parts. Alternatively, if the paint drips in the same place for a long time, it will cause paint accumulation, which is time-consuming and laborious to clean up. Summary of the Invention

[0004] In view of this, the present invention provides an automotive injection molded parts painting device to solve the problem that when existing painting devices are used to paint automotive injection molded parts, some paint is easily left on the nozzles after painting the automotive injection molded parts, and the paint drips down and easily drips onto irregularly shaped injection molded parts, affecting the quality of automotive injection molded parts.

[0005] This invention provides a spraying device for automotive injection molded parts, specifically comprising: a spraying carrier, the spraying carrier having a rectangular structure, a slot provided in the middle of the top of the spraying carrier, and a stabilizing plate installed on one side of the top of the spraying carrier; the stabilizing plate having a slot on its side, the slot having a cross-shaped structure, and a cylinder installed on the top of the stabilizing plate, and a movable block slidably installed in the slot on the side of the stabilizing plate; the movable block having a cross-shaped structure, and its top being connected to the cylinder output end on the top of the stabilizing plate, and a small cylinder installed on its side; a cleaning fixing plate installed on the rear side of the top of the spraying carrier; an opening provided on the side of the cleaning fixing plate, and a collecting component installed on the inner side of the cleaning fixing plate via a spring; the side end of the collecting component having a conical structure, and two positioning tubes installed on the side end of the collecting component.

[0006] Furthermore, a fixed bracket is installed at the included angle of the bottom edge of the spraying carrier, and a rotating carrier plate is rotatably installed in the slot at the top of the spraying carrier; a threaded rod is installed at the middle position of the bottom of the rotating carrier plate, and two guide rods are also installed at the bottom of the rotating carrier plate; the guide rods are cylindrical structures, and gears are installed at the bottom of the guide rods, and height adjustment plates are slidably installed on the outer side of the guide rods.

[0007] Furthermore, the height adjustment plate is a rectangular plate structure, and the height adjustment plate is installed on the threaded rod at the bottom of the rotating carrier plate; four adjustment slots are provided on the top of the rotating carrier plate; slots are provided on both sides of the adjustment slots, and positioning blocks are slidably installed inside the adjustment slots.

[0008] Furthermore, the positioning block has a positioning plate on its side and a support plate mounted on its bottom via a pivot; the support plate has a rectangular structure and its bottom is mounted on the side of the height adjustment plate via a pivot; a rotating clamp is rotatably mounted on the top of the positioning block; a suction cup is provided on the side of the rotating clamp and the other side of the rotating clamp is rotatably mounted on the side of the positioning plate.

[0009] Furthermore, a positioning ring is installed at the bottom of the movable block, and the positioning ring has a ring structure. A movable plate is installed on the output end of the cylinder on the side of the movable block. The movable plate has a rectangular plate structure, and a nozzle is installed on the outer side of the movable plate, and a guide is installed on the inner side of the movable plate.

[0010] Furthermore, the guide component has a cylindrical structure and an internal cavity. One end of the internal cavity is connected to the nozzle on the outside of the movable plate, and the other end of the guide component is equipped with a paint guide tube. The paint guide tube is made of flexible material and passes through the inner side of the positioning ring. A rotating rod is rotatably installed inside the guide component. The rotating rod has a cylindrical structure, and a return spring is installed on the outer side of the rotating rod. The return spring on the outer side of the rotating rod is connected to the outer side of the guide component, and a force-bearing plate is installed on the outer side of the rotating rod.

[0011] Furthermore, the force-bearing plate is slidably installed in the inner cavity of the guide member; paint collection plates are installed at both ends of the rotating rod via connecting plates; the paint collection plate has an arc-shaped structure and is located at the bottom of the nozzle outside the movable plate; a paint storage tank is installed at the bottom of the fixed bracket; the paint storage tank has a cylindrical structure, and a motor is installed on the side of the paint storage tank, with a gear installed at the output end of the motor, and the gear at the output end of the motor on the side of the paint storage tank meshes with the gear at the bottom of the guide rod; a power pump is installed on the side of the paint storage tank, and the output end of the power pump is connected to the bottom of the paint guide pipe; a rotating stirring rod is rotatably installed inside the paint storage tank; a stirring element is installed on the outside of the rotating stirring rod, and a gear is installed at the top of the rotating stirring rod through the top of the paint storage tank, and the gear at the top of the rotating stirring rod meshes with the gear at the bottom of the guide rod.

[0012] Furthermore, the positioning tube has a cylindrical structure, and an exhaust pipe is installed at the outer end of the positioning tube through the side of the cleaning fixing plate; the exhaust pipe is made of flexible material; a dust collection box is also installed at the bottom of the fixing bracket; an air pump is installed at the side end of the dust collection box, and the input end of the air pump is connected to the bottom of the exhaust pipe.

[0013] Furthermore, a cleaning carrier plate is installed on the inner side of the collection component; the cleaning carrier plate has a rectangular plate structure, and a brush is installed on the front side of the cleaning carrier plate; a drive rod is rotatably installed on the inner side of the collection component; the drive rod has a cylindrical structure, and a fan blade is installed on the outer side of the drive rod; an outer positioning rod is also rotatably installed on the inner side of the collection component.

[0014] Furthermore, the inner end of the outer positioning rod is provided with a positioning groove, and the outer end of the outer positioning rod is slidably installed in the opening on the side of the cleaning fixing plate. The outer sides of multiple outer positioning rods are connected to two drive rods through a chain assembly. An inner extension rod is installed in the positioning groove at the inner end of the outer positioning rod by a spring. The outer side of the inner extension rod is provided with a protrusion, and a rotating cleaning component is installed at the outer end of the inner extension rod. The outer side of the rotating cleaning component has an arc-shaped structure, and a brush is provided on the outer side of the rotating cleaning component.

[0015] The beneficial effects are:

[0016] I. In this invention, a paint collection plate is used to collect paint dripping from the nozzle of the spraying device. When painting automotive injection molded parts, the arc-shaped paint collection plate collects the dripping paint in a timely manner, preventing residual paint from dripping onto irregularly shaped injection molded parts, thus ensuring the product quality of automotive injection molded parts. At the same time, a small amount of paint thinner is stored on the inner side of the paint collection plate, which collects the dripping paint and prevents the problem of paint dripping to other places being inconvenient to clean up, reducing the workload of workers.

[0017] II. In this invention, a rotating cleaning component is used to clean the surface of the injection molded part to be painted. When painting the automotive injection molded part, the collecting component is driven to the outside of the injection molded part by the action of the spring, so that the rotating cleaning component cleans the surface of the injection molded part. At the same time, the brush on the cleaning carrier plate is used to prevent the cleaning dust from falling to other places. The dust is collected and discharged by the collecting component, reducing the dust on the surface of the automotive injection molded part, preventing dust in the air from affecting the paint adhesion, facilitating the painting of the injection molded part, ensuring the smoothness of the injection molded part surface after painting, and improving the product quality of automotive injection molded parts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram:

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the spraying carrier according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the rotating clamping state structure according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the stabilizing plate according to an embodiment of the present invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the paint collection plate according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic cross-sectional view of the guide element according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the working state of the force-bearing plate according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of the cleaning fixing plate according to an embodiment of the present invention.

[0029] Figure 9 This is a three-dimensional structural diagram of the rotating cleaning component according to an embodiment of the present invention.

[0030] Figure 10 This is an embodiment of the present invention. Figure 9 A schematic diagram of the enlarged structure of part A.

[0031] List of reference numerals

[0032] 1. Spraying carrier; 101. Fixed bracket; 102. Rotating carrier plate; 103. Guide rod; 104. Height adjustment plate; 105. Adjustment groove; 106. Positioning block; 107. Positioning plate; 108. Support plate; 109. Rotating clamp;

[0033] 2. Stabilizing plate; 201. Movable block; 202. Positioning ring; 203. Movable plate; 204. Flow guide; 205. Paint flow guide pipe; 206. Rotating rod; 207. Force plate; 208. Paint collection plate; 209. Paint storage tank; 2010. Rotating stirring rod;

[0034] 3. Cleaning fixing plate; 301. Collection component; 302. Positioning tube; 303. Exhaust pipe; 304. Dust collection box; 305. Cleaning carrier plate; 306. Drive rod; 307. Outer positioning rod; 308. Inner extension rod; 309. Rotating cleaning component. Detailed Implementation

[0035] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0036] Example 1:

[0037] This invention provides a coating device for automotive injection molded parts. Please refer to the following: Figures 1 to 3As shown, it includes: a spraying carrier 1, which is a rectangular structure with a slot in the middle of its top; a fixed bracket 101 installed at the included angle of the bottom edge of the spraying carrier 1, and a rotating carrier plate 102 rotatably installed in the slot at the top of the spraying carrier 1; a threaded rod installed in the middle of the bottom of the rotating carrier plate 102, and two guide rods 103 installed at the bottom of the rotating carrier plate 102; the guide rods 103 are cylindrical, with gears installed at their bottoms, and a height adjustment plate 104 slidably installed on the outer side of the guide rods 103; the height adjustment plate... 104 is a rectangular plate structure, and the height adjustment plate 104 is installed on the threaded rod at the bottom of the rotating carrier plate 102; the top of the rotating carrier plate 102 has four adjustment slots 105; the two sides of the adjustment slots 105 have slots, and the positioning blocks 106 are slidably installed inside the adjustment slots 105; the side of the positioning block 106 has a positioning plate 107, and the bottom of the positioning block 106 is installed with a support plate 108 through a rotating shaft; the support plate 108 is a rectangular structure, and the bottom of the support plate 108 is installed with a rotating shaft on the side of the height adjustment plate 104; the top of the positioning block 106 is rotatably installed with a rotating clamping plate 109.The rotating clamp 109 has suction cups on one side, and the other side of the rotating clamp 109 is rotatably mounted on the side of the positioning plate 107. When spraying automotive injection molded parts, the positions of the four positioning blocks 106 are adjusted according to the size of the automotive injection molded parts. The threaded rod at the bottom of the rotating carrier plate 102 drives the height adjustment plate 104 to move outside the guide rod 103, so that the side of the height adjustment plate 104 drives the support plate 108 to move through the rotating shaft, so that the top of the support plate 108 drives the positioning block 106 to move along the adjustment groove 105, so that the positioning block 106 is in a suitable position, which facilitates the fixing of the bottom of the automotive injection molded parts by the rotating clamp 109. The position of the rotating clamp 109 is adjusted according to the spraying of automotive injection molded parts. When it is necessary to clamp the automotive injection molded parts, the rotating clamp 109 rotates to a vertical position on the top of the positioning block 106, so that the positioning plate 107 is positioned on the rotating clamp. Positioning the rotating clamp 109 on its side ensures it remains vertical and does not flip, allowing it to clamp and fix the bottom outer side of the automotive injection molded part. When suction fixation of the bottom of the automotive injection molded part is required, the rotating clamp 109 is rotated horizontally on top of the positioning block 106, aligning the suction cups on its side with the rotating clamp 109. This allows the top of the positioning plate 107 to support the rotating clamp 109, facilitating suction fixation of the bottom of the injection molded part by the suction cups on its side. This method has a wide range of applications. After the automotive injection molded part is properly positioned, the gear at the bottom of the guide rod 103, driven by the motor on the side of the paint reservoir 209 on top of the fixing bracket 101, rotates. This causes the guide rod 103 to rotate the rotating carrier plate 102 within the slot on top of the spraying carrier 1, allowing the rotating carrier plate 102 to rotate and facilitate spraying of the outer side of the automotive injection molded part.

[0038] Example 2:

[0039] Based on Example 1, please refer to Figures 4 to 7As shown, a stabilizing plate 2 is installed on one side of the top of the spraying carrier 1; the side of the stabilizing plate 2 has a groove with a cross-shaped structure, and a cylinder is installed on the top of the stabilizing plate 2, and a movable block 201 is slidably installed in the groove on the side of the stabilizing plate 2; the movable block 201 has a cross-shaped structure, and the top of the movable block 201 is connected to the cylinder output end on the top of the stabilizing plate 2, and a small cylinder is installed on the side of the movable block 201; a positioning ring 202 is installed at the bottom of the movable block 201, and the positioning ring 202 has a ring structure. A movable plate 203 is mounted on the output end of the side cylinder; the movable plate 203 has a rectangular plate structure, and a nozzle is mounted on the outer side of the movable plate 203, while a guide member 204 is mounted on the inner side of the movable plate 203; the guide member 204 has a cylindrical structure, and an inner cavity is provided inside the guide member 204. One end of the inner cavity is connected to the nozzle on the outer side of the movable plate 203, and a paint guide tube 205 is mounted on the other end of the guide member 204; the paint guide tube 205 is made of flexible material and passes through the inner side of the positioning ring 202; the guide... A rotating rod 206 is rotatably mounted inside component 204. The rotating rod 206 has a cylindrical structure, and a return spring is annularly mounted on the outer side of the rotating rod 206. The return spring on the outer side of the rotating rod 206 is connected to the outer side of the guide component 204, and a force-bearing plate 207 is mounted on the outer side of the rotating rod 206. The force-bearing plate 207 is slidably mounted in the inner cavity of the guide component 204. Paint collection plates 208 are mounted on both ends of the rotating rod 206 through connecting plates. The paint collection plates 208 have an arc-shaped structure and are located in the movable... The bottom of the nozzle on the outer side of plate 203; the bottom of the fixed bracket 101 is equipped with a paint tank 209; the paint tank 209 is a cylindrical structure, and a motor is installed on the side of the paint tank 209. A gear is installed at the output end of the motor, and the gear at the output end of the motor on the side of the paint tank 209 meshes with the gear at the bottom of the guide rod 103. A power pump is installed on the side of the paint tank 209, and the output end of the power pump is connected to the bottom of the paint guide pipe 205. A rotating stirring rod 2010 is rotatably installed inside the paint tank 209.A stirring element is mounted on the outer side of the rotary stirring rod 2010, and a gear is mounted on the top of the rotary stirring rod 2010, penetrating the top of the paint storage tank 209. The gear on the top of the rotary stirring rod 2010 meshes with the gear at the bottom of the guide rod 103. When spraying automotive injection molded parts, the movable block 201 moves along the slot on the side of the stabilizing plate 2 according to the height of the injection molded parts. Driven by the cylinder on the top of the stabilizing plate 2, the movable block 201 drives the nozzle on the outer side of the movable plate 203 to move. At the same time, the small cylinder on the side of the movable block 201 drives the movable plate 203 to move horizontally, so that the nozzle on the outer side of the movable plate 203 is at a suitable distance from the outside of the injection molded parts. When the movable block 201 and the movable plate 203 move, they drive the flexible paint guide tube 205 to move through the positioning ring 202. The motor on the outside of the paint storage tank 209 rotates, driving the gear at the bottom of the guide rod 103 to rotate. The gear at the bottom of the guide rod 103 drives the smaller gear on the top of the rotary stirring rod 2010 to rotate, thus rotating the stirring rod. Rod 2010 agitates the paint inside paint tank 209 to ensure uniform paint concentration. A power pump on the side of paint tank 209 operates, causing paint to flow through paint guide pipe 205 into guide member 204. The flowing paint pushes force plate 207 to move inside guide member 204, causing force plate 207 to rotate rotating rod 206. The two ends of rotating rod 206 then move paint collection plate 208 away from the outside of nozzle outside movable plate 203, causing the nozzle to spray atomized paint onto the vapor... When the injection-molded automotive parts are being painted, the movable block 201 and the movable plate 203 move to different positions, ensuring the nozzles evenly spray the parts. Once the painting is complete, the force plate 207 loses its thrust, and under the action of the return spring on the outside of the rotating rod 206, the paint collection plate 208 is positioned at the bottom of the nozzle outside the movable plate 203. This allows the paint collection plate 208 to collect any remaining paint from the nozzles, preventing paint drips onto the injection-molded parts and ensuring product quality.

[0040] Example 3:

[0041] Based on Example 2, please refer to Figures 8 to 10As shown, a cleaning fixing plate 3 is installed on the top rear side of the spraying carrier 1; the cleaning fixing plate 3 has an opening on its side, and a collection component 301 is installed on the inner side of the cleaning fixing plate 3 via a spring; the side end of the collection component 301 has a tapered structure, and two positioning tubes 302 are installed on the side end of the collection component 301; the positioning tubes 302 have a cylindrical structure, and the outer end of the positioning tubes 302 penetrates the side of the cleaning fixing plate 3 to install an exhaust pipe 303; the exhaust pipe 303 is made of flexible material; a dust collection box 304 is also installed at the bottom of the fixing bracket 101; an air pump is installed on the side end of the dust collection box 304, and the input end of the air pump is connected to the bottom of the exhaust pipe 303; a cleaning carrier plate 305 is installed on the inner side of the collection component 301; the cleaning carrier plate 305... The cleaning plate 305 has a rectangular structure and a brush is installed on the front side of the cleaning plate 305. A drive rod 306 is rotatably installed on the inner side of the collection component 301. The drive rod 306 has a cylindrical structure and a fan blade is installed on the outer side of the drive rod 306. An outer positioning rod 307 is also rotatably installed on the inner side of the collection component 301. The inner end of the outer positioning rod 307 is provided with a positioning groove, and the outer end of the outer positioning rod 307 is slidably installed in the opening on the side of the cleaning fixing plate 3. The outer sides of multiple outer positioning rods 307 are connected to two drive rods 306 through a chain assembly. An inner extension rod 308 is installed in the positioning groove at the inner end of the outer positioning rod 307 through a spring. The outer side of the inner extension rod 308 is provided with a protrusion, and a rotating cleaning component 309 is installed at the outer end of the inner extension rod 308.The outer side of the rotating cleaning component 309 has an arc-shaped structure, and a brush is provided on the outer side of the rotating cleaning component 309. When spraying the automotive injection molded parts, according to the size of the automotive injection molded parts, under the action of the spring, the collecting component 301 moves outward from the inner side of the cleaning fixing plate 3, causing the collecting component 301 to drive the inner cleaning carrier plate 305 closer to the outer side of the automotive injection molded parts. When the collecting component 301 moves, it drives the outer end of the outer positioning rod 307 to move in the opening on the side of the cleaning fixing plate 3, and at the same time, it causes the exhaust pipe 303 to extend and retract. Under the action of the spring, the outer end of the inner extension rod 308 drives the rotating cleaning component 309 to move outward, so that the rotating cleaning component 309 is on the uneven surface of the outer side of the injection molded parts. The air pump at the side end of the dust collection box 304 works. The large airflow suction generated by the air pump draws the absorbed airflow through the collecting component 301, the positioning pipe 302, and the exhaust pipe 303 into the interior of the dust collection box 304. The larger airflow passes through the positioning pipe When the airflow flows at the top of 302, the large airflow is absorbed inward in a scattering manner, causing the airflow drawn in at the top of the two positioning tubes 302 to drive the fan blades on the outer side of the two drive rods 306 to rotate. At the same time, the large airflow can carry dust in. The outer side of the two drive rods 306 drives multiple outer positioning rods 307 to rotate inside the collection member 301 via a chain assembly. The protrusion on the outer side of the inner extension rod 308 engages with the positioning groove at the inner end of the outer positioning rod 307, causing the inner extension rod 308 to drive the rotating cleaning member 309 to rotate. The brush on the outer side of the rotating cleaning member 309 cleans the outer side of the automotive injection molded part, and the brush on the side of the cleaning carrier plate 305 provides auxiliary cleaning. The dust generated during cleaning is collected inside the collection member 301. The dust is then carried by the airflow through the positioning tubes 302 and the exhaust pipe 303 and stored inside the dust collection box 304. This cleaning is performed before the automotive injection molded part is sprayed to prevent dust from affecting the spraying and further improve the spraying quality of the injection molded part.

[0042] The specific usage and function of this embodiment: In this invention, when spraying automotive injection molded parts, firstly, the positions of the four positioning blocks 106 are adjusted according to the size of the automotive injection molded parts. Then, the threaded rod at the bottom of the rotating carrier plate 102 is rotated to move the height adjustment plate 104. The side of the height adjustment plate 104, through the support plate 108, moves the positioning blocks 106 along the adjustment groove 105 to a suitable position. Next, the position of the rotating clamping plate 109 is adjusted according to the condition of the automotive injection molded parts. When clamping the automotive injection molded parts, the rotating clamping plate 109 rotates at the top of the positioning blocks 106 to a vertical position. The side of the rotating clamping plate 109 faces the automotive injection molded parts. The bottom outer side of the plastic part is clamped and fixed. When it is necessary to adsorb and fix the bottom of the automotive injection molded part, the rotating clamp 109 on the top of the positioning block 106 is rotated to a horizontal state, and the suction cups on the side of the rotating clamp 109 are in a parallel state to adsorb and fix the bottom of the injection molded part. After the automotive injection molded part is fixed in a suitable position, the motor on the side of the paint tank 209 drives the gear at the bottom of the guide rod 103 to rotate. The guide rod 103 drives the rotating carrier plate 102 to rotate the automotive injection molded part in the slot on the top of the spray carrier 1 for spraying. Under the action of the spring, the collecting part 301 drives the inner cleaning carrier plate 305 to approach the automotive injection molded part. On the outside, under the action of the spring, the outer end of the inner extension rod 308 drives the rotating cleaning component 309 to move outward and onto the uneven surface of the injection molded part. The air pump at the side of the dust collection box 304 works, and the airflow flows through the collection component 301, the positioning tube 302, and the exhaust pipe 303 into the dust collection box 304. The airflow drives the fan blades on the outside of the drive rod 306 to rotate. The drive rod 306 drives multiple outer positioning rods 307 through the chain assembly, which in turn drives the rotating cleaning component 309 at the outer end of the inner extension rod 308 to clean the outside of the automotive injection molded part. The dust generated during cleaning is stored in the dust collection box through the positioning tube 302 and the exhaust pipe 303 along with the airflow. Inside 304, after the injection molded part is cleaned, it rotates to the position of the stabilizing plate 2. The power pump on the side of the paint tank 209 works, causing the paint to flow through the paint guide pipe 205 into the guide member 204. The flowing paint pushes the force plate 207 to move inside the guide member 204. The force plate 207 drives the rotating rod 206 to make the paint collection plate 208 move away from the outside of the nozzle outside the movable plate 203. The nozzle sprays out atomized paint to spray the automotive injection molded part. The movable block 201 and the movable plate 203 move to different positions under the action of the cylinder, so that the nozzle sprays the automotive injection molded part evenly, ensuring the product quality of the automotive injection molded part.

Claims

1. A spraying device for automotive injection molded parts, characterized in that, include: A spraying carrier (1) has a slot at the middle of its top and a stabilizing plate (2) installed on one side of its top. A fixed bracket (101) is installed at the included angle of the bottom edge of the spraying carrier (1), and a rotating carrier plate (102) is rotatably installed in the slot at the top of the spraying carrier (1). A threaded rod is installed at the middle of the bottom of the rotating carrier plate (102), and two guide rods (103) are also installed at the bottom of the rotating carrier plate (102). The guide rods (103) are cylindrical, and gears are installed at the bottom of the guide rods (103). A height adjustment plate (104) is slidably installed on the outer side of the guide rods (103). The height adjustment plate (104) is installed on the rotating carrier plate. On the threaded rod at the bottom of the plate (102); four adjustment slots (105) are provided on the top of the rotating carrier plate (102); slots are provided on both sides of the adjustment slots (105), and a positioning block (106) is slidably installed inside the adjustment slots (105); a positioning plate (107) is provided on the side of the positioning block (106), and a support plate (108) is installed on the bottom of the positioning block (106) through a rotating shaft; the bottom of the support plate (108) is installed on the side of the height adjustment plate (104) through a rotating shaft; a rotating clamping plate (109) is rotatably installed on the top of the positioning block (106); a suction cup is provided on the side of the rotating clamping plate (109), and the other side of the rotating clamping plate (109) is rotatably installed on the side of the positioning plate (107); The side of the stabilizing plate (2) is provided with a slot, and a cylinder is installed on the top of the stabilizing plate (2). A movable block (201) is slidably installed in the slot on the side of the stabilizing plate (2). The movable block (201) has a cross-shaped structure, and the top of the movable block (201) is connected to the cylinder output end on the top of the stabilizing plate (2). A small cylinder is installed on the side of the movable block (201). A cleaning fixing plate (3) is installed on the rear top of the spraying carrier (1). A positioning ring (202) is installed at the bottom of the movable block (201), and the positioning ring (202) has a ring structure. A movable plate (201) is installed on the output end of the cylinder on the side of the movable block (201). 203); The movable plate (203) is a rectangular plate structure, and a nozzle is installed on the outer side of the movable plate (203), and a guide (204) is installed on the inner side of the movable plate (203); the guide (204) has an inner cavity, one end of which is connected to the nozzle on the outer side of the movable plate (203), and a paint guide tube (205) is installed on the other end of the guide (204); the paint guide tube (205) passes through the inner side of the positioning ring (202); a rotating rod (206) is rotatably installed inside the guide (204); a return spring is installed on the outer side of the rotating rod (206), and the outer side of the rotating rod (206) is... The return spring on the side is connected to the outer side of the guide (204), and a force plate (207) is installed on the outer side of the rotating rod (206); the force plate (207) is slidably installed in the inner cavity of the guide (204); paint collection plates (208) are installed at both ends of the rotating rod (206) through connecting plates; the paint collection plate (208) has an arc-shaped structure and is located at the bottom of the nozzle on the outer side of the movable plate (203); a paint storage tank (209) is installed at the bottom of the fixed bracket (101); the paint storage tank (209) has a cylindrical structure and a motor is installed on the side of the paint storage tank (209). The motor output end is equipped with a gear, and the gear at the motor output end on the side of the paint storage tank (209) meshes with the gear at the bottom of the guide rod (103). A power pump is installed on the side of the paint storage tank (209), and the output end of the power pump is connected to the bottom of the paint guide pipe (205). A rotating stirring rod (2010) is rotatably installed inside the paint storage tank (209). A stirring element is installed on the outside of the rotating stirring rod (2010), and a gear is installed through the top of the rotating stirring rod (2010) through the top of the paint storage tank (209). The gear at the top of the rotating stirring rod (2010) meshes with the gear at the bottom of the guide rod (103). The cleaning fixing plate (3) has an opening on its side, and a collection component (301) is installed on the inner side of the cleaning fixing plate (3) by a spring; the side end of the collection component (301) is a conical structure, and two positioning tubes (302) are installed on the side end of the collection component (301); the positioning tube (302) is a cylindrical structure, and the outer end of the positioning tube (302) penetrates the side of the cleaning fixing plate (3) and is installed with an exhaust pipe (303); a dust collection box (304) is also installed at the bottom of the fixing bracket (101); an air pump is installed on the side end of the dust collection box (304), and the input end of the air pump is connected to the bottom of the exhaust pipe (303).

2. The automotive injection molded parts spraying device as described in claim 1, characterized in that: A cleaning carrier plate (305) is installed on the inner side of the collection component (301); the cleaning carrier plate (305) is a rectangular plate structure, and a brush is installed on the front side of the cleaning carrier plate (305); a drive rod (306) is rotatably installed on the inner side of the collection component (301); the drive rod (306) is a cylindrical structure, and a fan blade is installed on the outer side of the drive rod (306); an outer positioning rod (307) is also rotatably installed on the inner side of the collection component (301).

3. The automotive injection molded parts spraying device as described in claim 2, characterized in that: The inner end of the outer positioning rod (307) is provided with a positioning groove, and the outer end of the outer positioning rod (307) is slidably installed in the opening on the side of the cleaning fixing plate (3). The outer sides of multiple outer positioning rods (307) are connected to two drive rods (306) through a chain assembly. An inner extension rod (308) is installed in the positioning groove at the inner end of the outer positioning rod (307) through a spring. The outer side of the inner extension rod (308) is provided with a protrusion, and a rotating cleaning component (309) is installed at the outer end of the inner extension rod (308). The outer side of the rotating cleaning component (309) is an arc-shaped structure, and a brush is provided on the outer side of the rotating cleaning component (309).