A paint spraying device for automobile mold processing

Abstract

The present disclosure relates to the technical field of automobile mold processing, and one embodiment of the present disclosure provides a paint spraying device for automobile mold processing, which comprises a device frame and an outer cover, the outer cover is arranged on the device frame, a spraying assembly is arranged in the device frame and the outer cover, a processing table is rotatably connected to the surface of the device frame through a rotating shaft, a workpiece switching assembly is arranged on the processing table and the device frame, the spraying assembly comprises a paint spraying device, the paint spraying device is installed on the top of the outer cover, a conveying pipeline is arranged on the top of the inner cover, a plurality of paint spraying nozzles are arranged on the conveying pipeline, a filter is vertically connected to the top of the outer cover through a spring, a connecting pipeline is arranged on the top of the filter, a connecting frame is arranged on the bottom of the outer cover, and the connecting frame is connected to the device frame through a horizontal linear drive. Through the above technical scheme, the problem that the remaining paint drips on the ground or the workbench in the prior art, forming hazardous waste, which may easily pollute the soil and water if not properly treated, and does not meet the requirements of environmental protection regulations is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of automotive mold processing, and more specifically, to a painting apparatus for automotive mold processing. Background Technology

[0002] In the automotive mold processing industry, painting is a key process for improving the corrosion resistance, wear resistance, and aesthetics of the mold surface, directly affecting the service life of the mold and the quality of the molded products. Automotive molds have complex structures, often containing deep cavities, sharp edges, and other irregularly shaped parts, requiring extremely high standards for the uniformity and environmental friendliness of the paint application.

[0003] Currently, traditional automotive mold painting equipment presents serious pollution problems during operation. Most of these systems employ open or semi-open spraying environments, allowing paint mist generated during spraying to directly diffuse into the workshop air. This not only irritates the respiratory tract and skin of operators but also adheres to equipment surfaces, forming paint sludge and increasing the difficulty of cleaning the workshop. Furthermore, excess paint dripping onto the floor or workbenches creates hazardous waste, which, if not properly disposed of, can easily pollute soil and water bodies, failing to meet environmental regulations.

[0004] Furthermore, traditional equipment lacks an effective paint mist recovery mechanism, resulting in the direct emission of volatile organic compounds (VOCs) from the paint mist without treatment. This not only wastes paint but also exacerbates air pollution. For automotive molds with deep cavities, excess paint accumulates inside the cavities during painting, and the waste generated during cleaning further aggravates pollution. These problems not only affect the workshop production environment but also increase the environmental governance costs for enterprises, hindering the green and sustainable development of the industry. Therefore, it is necessary to develop a painting equipment for automotive mold processing that can effectively prevent pollution and improve these shortcomings. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a painting device for automobile mold processing, which solves the technical problem in the prior art where excess paint drips onto the ground or workbench, forming hazardous waste, and if not handled properly, easily causing soil and water pollution, failing to meet environmental protection regulations.

[0006] According to one aspect, at least one embodiment of this disclosure provides a painting apparatus for automotive mold processing, comprising:

[0007] Equipment rack and outer cover, the outer cover being mounted on the equipment rack;

[0008] A spraying assembly, wherein the spraying assembly is disposed within the equipment frame and the outer cover;

[0009] The processing table and the workpiece switching assembly are provided. The processing table is rotatably connected to the surface of the equipment frame via a rotating shaft, and the workpiece switching assembly is disposed on the processing table and the equipment frame.

[0010] The spraying assembly includes a paint spraying device installed on the top of the outer cover. A conveying pipe is provided inside the top of the outer cover, and a plurality of paint spray nozzles are provided on the conveying pipe. A filter is vertically spring-connected to the top of the outer cover, and a connecting pipe is provided on the top of the filter. A connecting frame is provided at the bottom of the outer cover, and the connecting frame is connected to the equipment frame by a horizontal linear drive.

[0011] As a further technical solution, the workpiece switching assembly includes an external gear, which is mounted on a rotating shaft at the bottom of the processing table. A drive gear, which is electrically driven to rotate, is mounted on the equipment frame and meshes with the external gear.

[0012] As a further technical solution, the surface of the processing table is provided with a pair of rotating tables driven by electricity, the surface of the processing table is provided with a pair of cavity plates, and a through cavity is opened at the bottom of the processing table, and an air pipe is installed in the through cavity.

[0013] As a further technical solution, a three-way pipe is connected between the cavity plates, the lower end of the three-way pipe is rotatably connected to the upper end of the air pipe, and a solenoid valve is provided at both ends of the three-way pipe. Several air outlet hoods are provided on the side surface of the cavity plate.

[0014] As a further technical solution, the cavity plate is matched with the opening size of the outer cover.

[0015] As a further technical solution, the bottom of the outer cover and the connecting frame are provided with notches, which correspond to the electric drive part of the rotating platform.

[0016] As a further technical solution, the opening portion of the air vent is all inclined downwards.

[0017] As a further technical solution, both ends of the conveying pipe are bent downwards, and several of the paint spray nozzles are distributed on the horizontal part of the conveying pipe and at the bends at both ends.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] In this disclosure, the spraying assembly solves the problem of paint pollution through enclosed treatment and precise spraying. The outer casing forms a closed space, and the filter purifies the paint mist to prevent its spread; the multi-angle spray nozzles in the delivery pipeline ensure uniform paint application to all parts of the mold, reducing excess paint dripping. The connecting frame moves the outer casing to adapt to different mold sizes, improving spraying efficiency while reducing the generation of hazardous waste, meeting environmental protection requirements, and reducing the burden of subsequent treatment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0022] Figure 2 This is an isometric drawing of the present disclosure;

[0023] Figure 3 This is an isometric sectional view of the present disclosure;

[0024] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0025] In the diagram: 1. Equipment frame; 2. Outer cover; 3. Processing table; 4. Spraying assembly; 4-1. Painting device; 4-2. Conveying pipe; 4-3. Spray nozzle; 4-4. Filter; 4-5. Connecting pipe; 4-6. Connecting frame; 5. Workpiece switching assembly; 5-1. External gear; 5-2. Drive gear; 5-3. Rotary table; 5-4. Cavity plate; 5-5. Through cavity; 5-6. Air pipe; 5-7. T-pipe; 5-8. Solenoid valve; 5-9. Air vent; 6. Notch. Detailed Implementation

[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] like Figures 1-4 As shown, a painting apparatus for automotive mold processing according to an embodiment of the present disclosure is illustrated, comprising:

[0033] Equipment frame 1 and outer cover 2, wherein the outer cover 2 is disposed on the equipment frame 1;

[0034] Spraying assembly 4, which is disposed inside the equipment frame 1 and the outer cover 2;

[0035] The processing table 3 and the workpiece switching assembly 5 are provided. The processing table 3 is rotatably connected to the surface of the equipment frame 1 via a rotating shaft. The workpiece switching assembly 5 is disposed on the processing table 3 and the equipment frame 1.

[0036] The spraying assembly 4 includes a paint spraying device 4-1, which is installed on the top of the outer cover 2. A conveying pipe 4-2 is provided inside the top of the outer cover 2, and a plurality of paint spray nozzles 4-3 are provided on the conveying pipe 4-2. A filter 4-4 is vertically spring-connected to the top of the outer cover 2, and a connecting pipe 4-5 is provided on the top of the filter 4-4. A connecting frame 4-6 is provided at the bottom of the outer cover 2, and the connecting frame 4-6 is connected to the equipment frame 1 by a horizontal linear drive.

[0037] In some examples, to achieve uniform painting and cleaning of the mold surface, a spraying assembly 4 is designed. This assembly includes a painting device 4-1 fixed at the top of the outer cover 2, with its output end connected to a conveying pipe 4-2. The conveying pipe 4-2 is horizontally distributed along the top of the inner side of the outer cover 2 and fixed by a bracket. The spray nozzles 4-3 at the bottom are evenly spaced and vertically connected to the pipe, with the nozzle outlets having a fan-shaped structure. The filter 4-4 at the top of the outer cover 2 is vertically connected to the inside of the outer cover 2 via a flange. The connecting pipe 4-5 at the top can be connected to an external air source. The connecting bracket 4-6 at the bottom of the outer cover 2 is slidably connected to the equipment frame 1 via a slide rail and is driven by a horizontal linear drive device (such as a lead screw motor), allowing it to move horizontally along the equipment frame 1.

[0038] During operation, the painting device 4-1 pumps paint into the delivery pipe 4-2, where it is atomized by multiple nozzles 4-3 and evenly sprayed onto the mold surface. A horizontal linear drive unit moves the connecting frame 4-6, which in turn moves the outer cover 2 and the internal spraying structure, ensuring that all parts of the mold are covered with paint. The filter 4-4 filters paint mist from the outer cover 2, preventing its accumulation and ensuring a better coating effect. The horizontal distribution of the delivery pipe 4-2, combined with the fan-shaped spray of the nozzles 4-3, results in more even paint coverage. The adjustable connecting frame 4-6 accommodates molds of different sizes. This assembly, through a combination of multi-point spraying and position adjustment, achieves uniform painting of the mold surface, improving coating quality.

[0039] like Figures 1-4 As shown in the figure, the workpiece switching assembly 5 in this embodiment includes an external gear 5-1, which is mounted on a rotating shaft at the bottom of the processing table 3. A drive gear 5-2, which is driven by electricity, is mounted on the equipment frame 1. The drive gear 5-2 meshes with the external gear 5-1. A pair of rotating tables 5-3, which are driven by electricity, are mounted on the surface of the processing table 3. A pair of cavity plates 5-4 are mounted on the surface of the processing table 3. A through cavity 5-5 is opened at the bottom of the processing table 3. An air pipe 5-6 is installed in the through cavity 5-5. A three-way pipe 5-7 is connected between the cavity plates 5-4. The lower end of the three-way pipe 5-7 is rotatably connected to the upper end of the air pipe 5-6. Solenoid valves 5-8 are mounted at both ends of the three-way pipe 5-7. Several air vents 5-9 are mounted on the side surface of the cavity plate 5-4.

[0040] In some examples, a workpiece switching assembly 5 is designed to achieve workpiece switching and drying. This assembly includes an external gear 5-1 on the rotating shaft at the bottom of the processing table 3 that meshes with a drive gear 5-2 on the equipment frame 1. The drive gear 5-2 is driven by a motor, which is fixed inside the equipment frame 1 by bolts. The rotating table 5-3 on the surface of the processing table 3 is rotatably connected by bearings and is driven by an independent motor, which can drive the mold to rotate. The cavity plates 5-4 on the surface of the processing table 3 are symmetrically distributed and fixed by bolts. The bottom through cavity 5-5 is symmetrically opened along the rotating axis. The air pipe 5-6 is fixed inside the through cavity 5-5 by a bracket. The lower end of the three-way pipe 5-7 is connected to the upper end of the air pipe 5-6 through a rotary joint and can rotate relative to the air pipe 5-6. The solenoid valves 5-8 at both ends control the airflow of the cavity plate 5-4 respectively. The air vents 5-9 on the side surface of the cavity plate 5-4 are evenly distributed and communicate with the interior of the cavity plate 5-4.

[0041] During operation, the mold to be painted is placed on a rotating platform 5-3. Drive gear 5-2 rotates the external gear 5-1, causing the processing table 3 to rotate and feed the mold into the outer casing 2 for painting. Simultaneously, a painted mold on another rotating platform 5-3 rotates out of the outer casing 2. Hot air is introduced through air pipe 5-6, passing through a three-way pipe 5-7 and a solenoid valve 5-8 into the cavity plate 5-4, and then sprayed out from the exhaust hood 5-9 to dry the paint layer on the mold surface. The solenoid valve 5-8 can independently control the airflow on both cavity plates 5-4, switching between drying and non-drying states. The rotating platform 5-3 drives the mold to rotate, ensuring the drying airflow is evenly applied to all surfaces of the mold. This assembly achieves workpiece switching through gear transmission and utilizes hot airflow for drying, improving the continuity of painting and drying, and increasing processing efficiency.

[0042] For example, such as Figure 1 As shown, the cavity plate 5-4 matches the opening size of the outer cover 2.

[0043] In some examples, the cavity plate 5-4 matches the opening size of the outer cover 2. When the processing table 3 rotates to bring the cavity plate 5-4 close to the outer cover 2, they can fit tightly to form a closed space. This reduces paint mist leakage during the painting process, avoids environmental pollution, and ensures stable air pressure inside the outer cover 2, allowing the paint to adhere more evenly to the mold surface, improving the painting effect and reducing paint waste.

[0044] For example, such as Figure 1 As shown, the bottom of the outer cover 2 and the connecting frame 4-6 are provided with a notch 6, which corresponds to the electric drive part of the rotating table 5-3.

[0045] In some examples, the notch 6 at the bottom of the outer cover 2 and the connecting frame 4-6 corresponds to the electric drive part of the rotary table 5-3, reserving space for the drive components of the rotary table 5-3. This prevents the outer cover 2 and the connecting frame 4-6 from colliding with the drive part when they move, ensuring the normal operation of the rotary table 5-3, while not affecting the enclosure of the painting area by the outer cover 2, thus balancing equipment operation safety and paint sealing.

[0046] For example, such as Figure 3 As shown, the openings of the air vents 5-9 are all tilted downwards.

[0047] In some examples, the vent 5-9 openings are tilted downwards, which precisely directs the hot airflow to the mold surface. The tilt angle allows the airflow to act directly on the freshly sprayed paint layer, accelerating the drying speed, while avoiding the paint layer being blown away by vertical airflow, ensuring a smooth paint layer, improving drying efficiency and quality, and reducing the ineffective loss of hot airflow.

[0048] For example, such as Figure 3 As shown, both ends of the conveying pipe 4-2 are bent downwards, and several paint spray nozzles 4-3 are distributed in the horizontal part of the conveying pipe 4-2 and at the bends at both ends.

[0049] In some examples, the delivery pipe 4-2 bends downwards at both ends, and the spray nozzles 4-3 are distributed at the horizontal and bend points, covering the top and sides of the mold. The spray nozzles 4-3 at the horizontal points spray the top of the mold, while those at the bend points spray the sides, ensuring that all parts of the mold are covered with paint, avoiding spray dead spots, making the coating more uniform, and improving the overall painting quality.

[0050] In practical use: The car mold is placed on two rotating tables 5-3. The drive gear 5-2 drives the external gear 5-1 to rotate the processing table 3. One of the molds enters the outer cover 2 along with the rotating table 5-3. The connecting frame 4-6 moves the outer cover 2 to a suitable position. The painting device 4-1 sprays paint from the spray nozzle 4-3 through the conveying pipe 4-2. The nozzles at the horizontal and bend points fully cover the surface of the mold. The filter 4-4 treats the paint mist through the connecting pipe 4-5. After the painting is completed, the processing table 3 rotates to switch molds. The painted mold is moved to the cavity plate 5-4. The air pipe 5-6 delivers hot air through the three-way pipe 5-7 and the air hood 5-9 and sprays it out of the cavity plate 5-4. The rotation of the rotating table 5-3 accelerates drying. The solenoid valve 5-8 controls the airflow. The entire process of painting and drying is synchronized, reducing paint waste.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A painting device for automobile mold processing, characterized in that, include: Equipment rack (1) and outer cover (2), the outer cover (2) being disposed on the equipment rack (1); A spraying assembly (4) is disposed within the equipment frame (1) and the outer cover (2); The processing table (3) and the workpiece switching assembly (5) are provided. The processing table (3) is rotatably connected to the surface of the equipment frame (1) via a rotating shaft. The workpiece switching assembly (5) is disposed on the processing table (3) and the equipment frame (1). The spraying assembly (4) includes a paint spraying device (4-1), which is installed on the top of the outer cover (2). A conveying pipe (4-2) is provided on the top of the outer cover (2). A plurality of paint spray nozzles (4-3) are provided on the conveying pipe (4-2). A filter (4-4) is vertically spring-connected to the top of the outer cover (2). A connecting pipe (4-5) is provided on the top of the filter (4-4). A connecting frame (4-6) is provided at the bottom of the outer cover (2). The connecting frame (4-6) is connected to the equipment frame (1) by a horizontal linear drive.

2. The painting device for automobile mold processing according to claim 1, characterized in that, The workpiece switching assembly (5) includes an external gear (5-1), which is mounted on a rotating shaft at the bottom of the processing table (3). The equipment frame (1) is provided with a drive gear (5-2) that is driven to rotate by electricity, and the drive gear (5-2) meshes with the external gear (5-1).

3. The painting device for automobile mold processing according to claim 2, characterized in that, The surface of the processing table (3) is provided with a pair of rotating tables (5-3) driven by electricity, the surface of the processing table (3) is provided with a pair of cavity plates (5-4), the bottom of the processing table (3) is provided with a through cavity (5-5), and an air pipe (5-6) is installed in the through cavity (5-5).

4. The painting device for automobile mold processing according to claim 3, characterized in that, A three-way pipe (5-7) is connected between the cavity plates (5-4). The lower end of the three-way pipe (5-7) is rotatably connected to the upper end of the air pipe (5-6). Solenoid valves (5-8) are provided at both ends of the three-way pipe (5-7). Several air outlet hoods (5-9) are provided on the side surface of the cavity plate (5-4).

5. A painting device for automobile mold processing according to claim 3, characterized in that, The cavity plate (5-4) is matched with the opening size of the outer cover (2).

6. A painting device for automobile mold processing according to claim 3, characterized in that, The bottom of the outer cover (2) and the connecting frame (4-6) are provided with a notch (6), which corresponds to the electric drive part of the rotating table (5-3).

7. A painting device for automobile mold processing according to claim 4, characterized in that, The openings of the air vents (5-9) are all tilted downwards.

8. A painting device for automobile mold processing according to claim 1, characterized in that, The conveying pipe (4-2) is bent downwards at both ends, and several paint spray nozzles (4-3) are distributed in the horizontal part of the conveying pipe (4-2) and at the bends at both ends.

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