Uniform spraying device for automobile lamp production

Abstract

The utility model discloses a kind of even spraying devices for automobile lamp production, including machine table, support frame is fixedly arranged on the machine table, support frame outside is fixedly arranged with guide frame, slidingly equipped with movable plate on the guide frame, fixedly arranged with mounting bracket on support frame, mounting bracket outside is equipped with fixed clamp, fixed clamp outside is fixedly arranged with fixed plate, the movable plate and fixed plate are all rotatably equipped with spray gun by damping pivot, a plurality of The bottom end of spray gun is fixedly arranged with connecting sleeve, the bottom end of connecting sleeve is rotatably equipped with adjusting sleeve, adjusting sleeve bottom end is rotatably equipped with external connection pipe, adjusting sleeve inside is threadedly connected with screw rod, screw rod top is fixedly equipped with slide bar, slide bar top is fixedly equipped with push piece, connecting sleeve is equipped with movable slot, movable block is slidably arranged in movable slot, the displacement of a plurality of movable blocks in movable slot changes the flow area between movable slot and movable block, to realize the accurate adjustment of coating spraying flow.

Description

Technical Field

[0001] This utility model relates to the field of automotive headlight spraying technology, and more specifically, it relates to a uniform spraying device for automotive headlight production. Background Technology

[0002] In the painting process of automotive headlights, it is necessary to uniformly coat the surfaces of headlights of different models and sizes. The spray flow rate of the paint directly affects the coating thickness, surface quality, and production efficiency. Excessive flow rate can lead to paint accumulation, resulting in surface defects such as runs and orange peel, causing substandard product appearance and material waste. Insufficient flow rate can result in insufficient coating thickness and uneven coverage, affecting the protective performance and lifespan of the headlights. Different types of paints have different viscosity, solid content, and atomization characteristics. Furthermore, the surface shape, curvature, and coating requirements of different headlight products also vary. Therefore, the optimal spray flow rate needs to be determined based on… The specific working conditions can be flexibly adjusted. Traditional spraying equipment uses fixed nozzles or relies on external pressure regulating valves to control the flow rate. It is impossible to adjust the flow rate on the spraying equipment itself. Operators can only change the flow rate by changing different nozzles or adjusting the air source pressure. The adjustment process requires stopping the machine to disassemble and assemble the equipment, and it is difficult to achieve continuous adjustment. Frequent nozzle changes increase downtime and reduce production efficiency. External pressure regulation is affected by air pressure fluctuations and has poor stability. This kind of spraying system that lacks flow regulation capability cannot adapt to the flexible production needs of multiple types of vehicle lights, which seriously restricts the stability of coating quality and the adaptability of the production line. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the problems existing in the prior art, this utility model provides a uniform spraying device for automobile lamp production to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a uniform spraying device for automotive headlight production, comprising a machine base, a support frame fixedly mounted on the machine base, a guide frame fixedly mounted on the outer side of the support frame, a movable plate slidably mounted on the guide frame, a mounting frame fixedly mounted on the support frame, a fixing clamp fixedly mounted on the outer side of the mounting frame, and a fixing plate fixedly mounted on the outer side of the fixing clamp. Spray guns are rotatably mounted on both the movable plate and the fixing plate via damping shafts. Connecting sleeves are fixedly mounted at the bottom ends of multiple sets of spray guns. Adjusting sleeves are rotatably mounted at the bottom ends of the connecting sleeves, and outer connecting pipes are rotatably mounted at the bottom ends of the adjusting sleeves. A screw is threadedly connected to the inner side of the adjusting sleeve, a sliding rod is fixedly mounted at the top end of the screw, and a push block is fixedly mounted at the top end of the sliding rod. A movable groove is opened inside the connecting sleeve, and a stop block slidably mounted within the movable groove. Multiple sets of stop blocks are provided, and push springs are connected between the outer side of each stop block and the movable groove. An electric push rod is mounted on the top surface of the guide frame, and the telescopic end of the electric push rod is fixedly connected to the movable plate.

[0007] The present invention is further configured such that a rotary motor is fixedly installed on the machine base, a rotating plate is fixedly installed at the output end of the rotary motor, cylinders are fixedly installed at both ends of the rotating plate, and pressure plates are fixedly installed at the extension and retraction ends of multiple sets of cylinders. The rotary motor drives the rotating plate to rotate the vehicle lamp body to achieve multi-angle uniform spraying, and the multiple sets of cylinders drive the pressure plates to reliably clamp and fix the lamp body to prevent displacement or shaking of the lamp body during the spraying process, thereby ensuring the uniformity of the coating and the spraying quality.

[0008] The present invention is further configured such that each of the multiple sets of the stop blocks has a slider fixedly provided on its bottom surface, and a sliding groove is provided in the movable groove. The sliding groove is provided in multiple sets and is slidably connected to the multiple sets of sliders respectively. The cooperation between the multiple sets of sliders and the sliding grooves provides precise guiding constraints for the sliding of the stop block in the movable groove, ensuring that the stop block moves along the predetermined trajectory without lateral movement, and ensuring the accuracy and repeatability of the flow area adjustment.

[0009] The present invention is further configured such that a bracket is fixedly provided on the inner side of the connecting sleeve, and the slide rod is configured as a polygon and slidably connected to the bracket. The cooperation between the polygonal slide rod and the bracket prevents the slide rod from rotating when moving axially, ensuring that the push block maintains the correct posture and reliably contacts multiple sets of stops, thereby ensuring the stability of the threaded transmission and the accuracy of flow regulation.

[0010] The present invention is further configured such that the outer wall of the push block is provided with rotatable balls, and the balls are provided in multiple sets and respectively abut against multiple sets of stops. The rolling contact characteristics of the balls reduce the frictional resistance between the push block and the stops, reduce the operating torque required for rotating the adjustment sleeve, make the flow adjustment more convenient and labor-saving, and at the same time reduce the wear of the contact surface and extend the service life.

[0011] The present invention is further configured such that a limiting block is fixedly provided on the bottom surface of the adjusting sleeve, and multiple sets of the limiting block are provided; a support plate is fixedly provided on the outer wall of the connecting sleeve; a slide bar is fixedly provided on the top surface of the support plate; multiple sets of slide bars are provided and each has abutting block slidably provided; a tension spring is connected between the multiple sets of abutting blocks; the multiple sets of limiting blocks provide multiple selectable levels for flow rate adjustment; the elastic preload provided by the tension spring ensures that the abutting block firmly abuts against the limiting block to form a reliable positioning, effectively preventing the position of the adjusting sleeve from shifting due to vibration or pressure fluctuations, and ensuring that the spraying flow rate is stable at the set value.

[0012] The present invention is further configured such that a guide ring is fixedly provided on the outer side of the multiple sets of limiting blocks, and a guide groove is provided on the inner side of the multiple sets of abutting blocks. The multiple sets of guide grooves are slidably connected with the guide ring. The cooperation between the guide ring and the guide groove provides circumferential sliding guidance for the abutting block, ensuring that the abutting block moves accurately along the slide bar when the adjusting sleeve is rotated, thus ensuring the reliability of gear switching and the accuracy of positioning.

[0013] The present invention is further configured such that all of the multiple sets of limiting blocks and abutment blocks are arc-shaped. The arc-shaped design reduces the contact stress between the limiting blocks and abutment blocks, reduces the operating resistance when the rotating adjustment sleeve crosses gear positions, making gear switching smoother. The arc structure avoids stress concentration, reduces wear, and extends service life.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a uniform spraying device for automotive headlight production, which has the following beneficial effects:

[0016] 1. This device uses a rotating adjusting sleeve to create a threaded connection between the screw and the adjusting sleeve, which in turn pushes the slide rod to slide along the inner side of the connecting sleeve. The push block at the top of the slide rod pushes multiple sets of stops to slide along the movable groove and compress the push spring. The displacement of the multiple sets of stops in the movable groove changes the flow area between the movable groove and the stops, thereby achieving precise adjustment of the paint spraying flow rate. Operators can flexibly adjust the spraying flow rate according to the viscosity, solid content of different paints and the coating requirements of different automotive lighting products. When dealing with high-viscosity paints or surfaces with large curvature, the flow rate is reduced to avoid paint accumulation and sagging defects. When dealing with low-viscosity paints or flat surfaces, the flow rate is increased to improve coating efficiency. The threaded transmission mechanism converts the rotational motion of the adjusting sleeve into the linear motion of the push block, realizing continuous and precise control of the flow rate. The circumferential distribution of multiple sets of stops ensures uniform and stable adjustment of the flow area.

[0017] 2. This device rotates the adjusting sleeve to drive multiple sets of limiting blocks to rotate, which in turn pushes multiple sets of abutment blocks to slide along the slide bar. The multiple sets of abutment blocks slide along the guide ring through the guide groove, causing the adjusting sleeve to rotate in different positions. Both the multiple sets of limiting blocks and abutment blocks are designed in an arc shape to reduce contact stress. After adjustment, multiple sets of tension springs pull the abutment blocks against the outer wall of the limiting blocks. The cooperation between the limiting blocks and the abutment blocks reliably positions and locks the adjusting sleeve. The multiple sets of limiting blocks are designed to provide multiple selectable flow levels for different coating characteristics and product requirements. The elastic preload provided by the tension springs ensures that the abutment blocks firmly abut against the limiting blocks and remain locked. This effectively prevents the adjusting sleeve from shifting due to spray gun vibration, coating pressure fluctuations, or accidental operation, ensuring that the spray flow rate remains at the set value and avoiding inconsistent coating thickness caused by flow fluctuations.

[0018] 3. An electric push rod is installed on the top surface of the guide frame and fixedly connected to the movable plate. A mounting bracket is fixed on the support frame, and a fixing clamp is fixed on the outside of the fixing clamp. A fixing plate is fixed on the outside of the fixing clamp. Both the movable plate and the fixing plate are equipped with spray guns that rotate via damping shafts. The electric push rod adjusts the height of the movable plate, the fixing clamp adjusts the angle and height of the fixing plate, and the damping shaft adjusts the angle of the spray gun. A rotating plate is fixed at the output end of a rotary motor on the machine base. A pressure plate is fixed at both ends of the rotating plate at the telescopic ends of cylinders. The cylinders drive the pressure plate to fix the headlight body. The rotary motor drives the rotating plate to rotate to achieve multi-angle spraying of the headlight. This supporting structure ensures that the spraying device can achieve uniform coating and efficient production on the surface of the headlight based on precise flow rate adjustment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a uniform spraying device for automobile headlight production according to the present invention.

[0020] Figure 2 This is a schematic diagram of the spray gun structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting sleeve in this utility model;

[0022] Figure 4 This is a cross-sectional view of the connecting sleeve in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjusting sleeve and the push block in this utility model.

[0024] In the diagram: 1. Machine base; 2. Support frame; 3. Guide frame; 4. Movable plate; 5. Mounting frame; 6. Fixing clamp; 7. Fixing plate; 8. Spray gun; 9. Connecting sleeve; 10. Adjusting sleeve; 11. Outer pipe; 12. Screw; 13. Slide rod; 14. Push block; 15. Movable groove; 16. Stop block; 17. Push spring; 18. Electric push rod; 19. Rotary motor; 20. Rotating plate; 21. Cylinder; 22. Pressure plate; 23. Slider; 24. Slide groove; 25. Bracket; 26. Ball bearing; 27. Limiting block; 28. Support plate; 29. ​​Slide bar; 30. Abutment block; 31. Tension spring; 32. Guide ring; 33. Guide groove. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0028] Please see Figures 1-5 A uniform spraying device for automotive headlight production includes a machine base 1, a support frame 2 fixedly mounted on the machine base 1, a guide frame 3 fixedly mounted on the outside of the support frame 2, a movable plate 4 slidably mounted on the guide frame 3, a mounting frame 5 fixedly mounted on the support frame 2, a fixing clamp 6 fixedly mounted on the outside of the mounting frame 5, and a fixing plate 7 fixedly mounted on the outside of the fixing clamp 6. Spray guns 8 are rotatably mounted on both the movable plate 4 and the fixing plate 7 via damping shafts. Connecting sleeves 9 are fixedly mounted at the bottom ends of multiple sets of spray guns 8, and adjusting sleeves are rotatably mounted at the bottom ends of the connecting sleeves 9. 10. The bottom end of the adjusting sleeve 10 is provided with an outer connecting pipe 11. The inner side of the adjusting sleeve 10 is threaded with a screw 12. The top end of the screw 12 is fixed with a slide rod 13. The top end of the slide rod 13 is fixed with a push block 14. The connecting sleeve 9 is provided with a movable groove 15. A stop block 16 is slidably provided in the movable groove 15. Multiple sets of stop blocks 16 are provided, and push springs 17 are connected between the outer side and the movable groove 15. An electric push rod 18 is installed on the top surface of the guide frame 3. The telescopic end of the electric push rod 18 is fixedly connected to the movable plate 4.

[0029] A rotary motor 19 is fixedly installed on the machine base 1. A rotating plate 20 is fixedly installed at the output end of the rotary motor 19. Cylinders 21 are fixedly installed at both ends of the rotating plate 20. Pressure plates 22 are fixedly installed at the extension and retraction ends of multiple sets of cylinders 21.

[0030] Multiple sets of stop blocks 16 are fixedly provided with sliders 23 on their bottom surfaces. The movable groove 15 is provided with a sliding groove 24. Multiple sets of sliding grooves 24 are provided and are slidably connected to multiple sets of sliders 23 respectively.

[0031] A bracket 25 is fixedly provided on the inner side of the connecting sleeve 9, and the slide rod 13 is polygonal and slidably connected to the bracket 25.

[0032] The outer wall of the push block 14 is provided with rotating ball bearings 26, and multiple sets of ball bearings 26 are provided and respectively abut against multiple sets of stop blocks 16.

[0033] The bottom surface of the adjusting sleeve 10 is fixedly provided with a limiting block 27, and multiple sets of limiting blocks 27 are provided. The outer wall of the connecting sleeve 9 is fixedly provided with a support plate 28, and the top surface of the support plate 28 is fixedly provided with a slide bar 29. Multiple sets of slide bars 29 are provided and each has a sliding abutment block 30. Tension springs 31 are connected between the multiple sets of abutment blocks 30.

[0034] Multiple sets of limiting blocks 27 are fixedly provided with guide rings 32 on their outer sides, and multiple sets of abutting blocks 30 are provided with guide grooves 33 on their inner sides. Multiple sets of guide grooves 33 are slidably connected to guide rings 32.

[0035] The multiple sets of limiting blocks 27 and abutment blocks 30 are all set to be arc-shaped.

[0036] In this embodiment, during use, multiple sets of external pipes 11 are connected to external paint delivery pipes respectively. The height of the movable plate 4 is adjusted by the electric push rod 18, the angle and height of the fixed plate 7 are adjusted by the fixing clamp 6, the spray gun 8 is rotated to adjust the spraying angle, the lamp body is placed on the rotating plate 20, and the pressure plate 22 is fixed by the cylinder 21. The rotating adjustment sleeve 10 is threadedly engaged with the screw 12, so that the slide rod 13 pushes the push block 14 to push multiple sets of stop blocks 16 to slide along the movable groove 15, so that the multiple sets of stop blocks 16 squeeze the multiple sets of push springs 17, so that the multiple sets of stop blocks 16 adjust the flow area between the movable grooves 15, thereby adjusting the spray flow rate of the paint.

[0037] More specifically, rotating the adjusting sleeve 10 simultaneously drives multiple sets of limiting blocks 27 to rotate, pushing multiple sets of abutting blocks 30 to slide along the slide bar 29 and stretching the tension spring 31. The multiple sets of abutting blocks 30 slide along the guide ring 32 through the guide groove 33, causing the adjusting sleeve 10 to rotate in a gear position. When the adjustment is completed, the multiple sets of tension springs 31 pull the abutting blocks 30 to abut against the outer wall of the limiting block 27, positioning the adjusting sleeve 10.

[0038] In summary, when using or operating the overall equipment: During use, connect multiple sets of external pipes 11 to the external paint delivery pipes respectively. Adjust the height of the movable plate 4 using the electric push rod 18. Adjust the angle and height of the fixed plate 7 using the fixing clamp 6. Adjust the spraying angle by rotating the spray gun 8. Place the lamp body on the rotating plate 20. Fix the lamp body by driving the pressure plate 22 through the cylinder 21. Rotate the adjusting sleeve 10 and screw 12 for threaded engagement, so that the slide rod 13 pushes the push block 14 to push multiple sets of stop blocks 16 to slide along the movable groove 15. This causes the multiple sets of stop blocks 16 to squeeze the multiple sets of push springs 17, thereby adjusting the flow area between the multiple sets of stop blocks 16 and thus adjusting the paint spray flow rate.

[0039] While rotating the adjusting sleeve 10, it drives multiple sets of limiting blocks 27 to rotate, pushes multiple sets of abutting blocks 30 to slide along the slide bar 29 and stretches the tension spring 31. The multiple sets of abutting blocks 30 slide along the guide ring 32 through the guide groove 33, so that the adjusting sleeve 10 rotates in a gear position. When the adjustment is completed, the multiple sets of tension springs 31 pull the abutting blocks 30 to abut against the outer wall of the limiting block 27 to position the adjusting sleeve 10.

[0040] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option.

[0041] In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail.

[0042] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be described in detail in this utility model.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform spraying device for automobile headlight production, comprising a machine base (1), characterized in that: A support frame (2) is fixedly mounted on the machine base (1). A guide frame (3) is fixedly mounted on the outside of the support frame (2). A movable plate (4) is slidably mounted on the guide frame (3). A mounting frame (5) is fixedly mounted on the support frame (2). A fixing clip (6) is provided on the outside of the mounting frame (5). A fixing plate (7) is fixedly mounted on the outside of the fixing clip (6). Spray guns (8) are rotatably mounted on both the movable plate (4) and the fixing plate (7) via damping shafts. Connecting sleeves (9) are fixedly mounted at the bottom of multiple sets of spray guns (8). Adjusting sleeves (10) are rotatably mounted at the bottom of the connecting sleeves (9). The bottom end is provided with an outer pipe (11) for rotation. The inner side of the adjusting sleeve (10) is provided with a screw (12) threaded connection. The top end of the screw (12) is provided with a slide rod (13). The top end of the slide rod (13) is provided with a push block (14). The connecting sleeve (9) is provided with a movable groove (15). The movable groove (15) is provided with a stop block (16) slidingly. The stop block (16) is provided with multiple sets, and the outer side is connected to the movable groove (15) with a push spring (17). The top surface of the guide frame (3) is provided with an electric push rod (18). The telescopic end of the electric push rod (18) is fixedly connected to the movable plate (4).

2. The uniform spraying device for automobile lamp production according to claim 1, characterized in that: A rotary motor (19) is fixedly installed on the machine base (1). A rotating plate (20) is fixedly installed at the output end of the rotary motor (19). A cylinder (21) is fixedly installed at both ends of the rotating plate (20). A pressure plate (22) is fixedly installed at the extension and retraction ends of multiple sets of cylinders (21).

3. The uniform spraying device for automobile lamp production according to claim 2, characterized in that: multiple sets The bottom surface of each stop block (16) is fixedly provided with a slider (23), and the movable groove (15) is provided with a sliding groove (24). The sliding groove (24) is provided in multiple sets and is slidably connected to multiple sets of sliders (23).

4. The uniform spraying device for automobile lamp production according to claim 3, characterized in that: A bracket (25) is fixedly provided on the inner side of the connecting sleeve (9), and the slide rod (13) is set as a polygon and is slidably connected to the bracket (25).

5. A uniform spraying device for automobile lamp production according to claim 4, characterized in that: The outer wall of the push block (14) is provided with rotatable ball bearings (26), and the ball bearings (26) are provided in multiple sets and respectively abut against multiple sets of stop blocks (16).

6. The uniform spraying device for automobile lamp production according to claim 5, characterized in that: The bottom surface of the adjusting sleeve (10) is fixedly provided with a limiting block (27), and multiple sets of the limiting block (27) are provided. The outer wall of the connecting sleeve (9) is fixedly provided with a support plate (28), and the top surface of the support plate (28) is fixedly provided with a slide bar (29). Multiple sets of the slide bar (29) are provided and each has a sliding abutment block (30). Tension springs (31) are connected between the multiple sets of abutment blocks (30).

7. A uniform spraying device for automobile lamp production according to claim 6, characterized in that: multiple sets The limiting block (27) is fixedly provided with a guide ring (32) on the outside, and the inner side of the multiple sets of abutting blocks (30) is provided with guide grooves (33), and the multiple sets of guide grooves (33) are slidably connected with the guide ring (32).

8. A uniform spraying device for automobile lamp production according to claim 7, characterized in that: The multiple sets of limiting blocks (27) and abutment blocks (30) are all set to be arc-shaped.

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