A multi-color painting tool

Abstract

The utility model discloses a multicolor spraying frock relates to spraying technical field, sets up the turntable through in the middle part of workstation, is equipped with four jaw linkage chuck clamp work piece on the turntable, and the cooperation electric push rod drives the rotation axle to press down and makes the buffer pad and work piece top end contact, realizes axial fixed, makes work piece keep stable in the spraying process and does not deviate, through horizontal movement subassembly and vertical movement subassembly collaborative operation, drives the accurate movement of spray head in vertical plane, realizes multi -angle, multi -direction spraying, satisfies the spraying demand of different parts of work piece, promotes coating uniformity and covering integrity, sets up the mounting base and adjustable mounting bracket on the slider in vertical movement subassembly, and the spray head is fixed on the mounting bracket, after spraying is completed through the adjustment motor drive screw rotation, drives the displacement of moving block, promotes the mounting bracket and rotates downward around the articulated end, makes the coating in the spray head empty completely to the collecting groove, avoids the residual coating drop and pollutes work piece or equipment.

Description

Technical Field

[0001] This utility model relates to the field of spraying technology, and in particular to a multi-color spraying fixture. Background Technology

[0002] Multi-color spraying fixtures are specialized equipment designed to achieve complex colors and patterns in spraying processes. They are widely used in various fields such as automobile manufacturing, home appliance production, and handicrafts. They not only improve spraying efficiency but also ensure precise color registration and high-quality surface finishes.

[0003] Traditional spraying fixtures have several shortcomings when performing spraying operations. First, traditional fixtures rely solely on simple clamps or support structures to fix the workpiece, lacking sufficient adaptability and stability. They are unable to provide effective support and fixation, and the workpiece is prone to displacement and shaking during the spraying process. This results in uneven paint coverage, leading to problems such as inconsistent paint thickness and color deviation, which seriously affect the appearance quality of the product.

[0004] Furthermore, with traditional tooling, when spraying operations are paused or completed, residual paint inside the nozzle can easily drip from the spray port due to gravity or pressure changes, contaminating the workbench surface. This not only affects the cleanliness of the working environment but also requires a significant amount of time and manpower for cleaning. Frequent cleaning not only increases production costs but also reduces production efficiency, which is detrimental to the long-term development of the enterprise. Utility Model Content

[0005] Based on this, it is necessary to provide a multi-color spraying fixture. The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A multi-color spraying fixture includes: a worktable, a U-shaped frame above the worktable, a horizontal moving component on the U-shaped frame, and a vertical moving component on the horizontal moving component; multiple pigment bins on the horizontal moving component, which move synchronously with the vertical moving component; multiple liftable spray heads on the vertical moving component, and the multiple spray heads and multiple pigment bins are respectively connected one-to-one by connecting pipes; a turntable in the middle of the worktable, a four-jaw linkage chuck above the turntable, and anti-slip strips on the jaws of the four-jaw linkage chuck; an electric push rod above the U-shaped frame, which extends through the U-shaped frame to above the four-jaw linkage chuck; a rotating shaft at the end of the electric push rod near the turntable, and a buffer pad at the end of the rotating shaft away from the electric push rod.

[0006] In one embodiment, the workbench is equipped with a rotary motor, which is fixedly connected to the turntable and drives the turntable to rotate.

[0007] In one embodiment, each pigment container is equipped with a pump body, which is connected to both the pigment container and the connecting pipe.

[0008] In one embodiment, the horizontal movement component includes a linear motor mounted on the U-shaped frame, and the linear motor has a slide table.

[0009] In one embodiment, the vertical movement assembly includes a mounting plate fixed on the slide table. The mounting plate is provided with a lifting screw for driving the nozzle to move and a lifting motor for driving the lifting screw to rotate. A slider is movably sleeved on the lifting screw, and the nozzle is fixed on the slider.

[0010] In one embodiment, the slider is provided with a mounting base, the mounting base is provided with a mounting bracket, the upper surface of the mounting bracket is provided with a mounting groove, and the nozzle is fixed in the mounting groove.

[0011] In one embodiment, a guide ring is provided on the back of the nozzle, and the connecting pipe passes through the guide ring and is connected to the nozzle.

[0012] In one embodiment, one end of the mounting bracket is hinged to the mounting base, and the other end is movably connected to the mounting base via a return spring.

[0013] In one embodiment, the mounting bracket is further provided with a collection trough on the side near the nozzle, the collection trough being used to catch dripping pigment.

[0014] In one embodiment, the upper surface of the mounting base is provided with a sliding groove, a screw is embedded in the sliding groove, an adjusting motor is provided at the end of the screw, and a moving block is sleeved on the screw, the moving block being used to push the mounting frame to rotate around the hinge end.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a multi-color spraying fixture. A turntable is set in the middle of the worktable, and a four-jaw linkage chuck on the turntable clamps the workpiece. An electric push rod drives the rotating shaft downwards, causing the buffer pad to contact the top of the workpiece, achieving axial fixation and ensuring the workpiece remains stable and does not shift during spraying. Through the coordinated operation of the horizontal and vertical moving components, the spray head moves precisely along the vertical plane, achieving multi-angle and multi-directional spraying, meeting the spraying needs of different parts of the workpiece, and improving coating uniformity and coverage integrity. A mounting base and an adjustable mounting bracket are set on the slider in the vertical moving component. The spray head is fixed on the mounting bracket. After spraying, adjusting the motor drives the screw to rotate, causing the moving block to shift and pushing the mounting bracket downwards around the hinge end, completely emptying the paint from the spray head into the collection tank, preventing residual paint from dripping and contaminating the workpiece or equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of one embodiment.

[0018] Figure 2 This is a schematic diagram of the rear structure of one embodiment;

[0019] Figure 3 This is a schematic diagram of the mounting base in one embodiment.

[0020] Reference numerals: 10. Multi-color spraying fixture; 100. Worktable; 110. U-shaped frame; 120. Turntable; 130. Four-jaw linkage chuck; 140. Electric push rod; 141. Rotary shaft; 142. Buffer pad; 200. Linear motor; 210. Slide table; 300. Mounting plate; 310. Lifting screw; 320. Lifting motor; 330. Slider; 400. Pigment tank; 410. Connecting pipe; 420. Spray head; 500. Mounting base; 501. Slide groove; 502. Screw; 503. Adjusting motor; 504. Moving block; 510. Mounting bracket; 520. Guide ring; 530. Return spring; 540. Collection tank. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0022] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0023] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a multi-color spraying fixture 10 includes: a workbench 100, a U-shaped frame 110 above the workbench 100, a horizontal moving component on the U-shaped frame 110, and a vertical moving component on the horizontal moving component; multiple pigment containers 400 are mounted on the horizontal moving component and move synchronously with the vertical moving component; multiple liftable spray nozzles 420 are mounted on the vertical moving component, and the multiple spray nozzles 420 and the multiple pigment containers 400 are respectively connected one-to-one via connecting pipes 410; A turntable 120 is provided in the middle of the workbench 100, and a four-jaw linkage chuck 130 is provided above the turntable 120. The jaws of the four-jaw linkage chuck 130 are provided with anti-slip strips. An electric push rod 140 is also provided above the U-shaped frame 110. The electric push rod 140 extends through the U-shaped frame 110 to the top of the four-jaw linkage chuck 130. A rotating shaft 141 is provided at the end of the electric push rod 140 near the turntable 120, and a buffer pad 142 is provided at the end of the rotating shaft 141 away from the electric push rod 140.

[0024] In this embodiment, the worktable 100 has a cavity in the middle for installing a rotary motor. The rotary motor is located inside the cavity and is connected to a turntable 120 on the surface of the worktable 100. A four-jaw linkage chuck 130 is fixedly connected to the turntable 120. The rotary motor drives the turntable 120 to rotate, and the four-jaw linkage chuck 130 is used to fix the workpiece and rotates synchronously with the turntable 120 to achieve rotary spraying of the workpiece. The inner side of the jaws of the four-jaw linkage chuck 130 is provided with anti-slip strips to effectively prevent the workpiece from sliding or shifting during rotation, ensuring the uniformity and accuracy of the spraying. A U-shaped frame 110 is also provided above the worktable 100, and an inverted electric push rod 140 is provided on the U-shaped frame 110. The telescopic end of the electric push rod 140 passes through the U-shaped frame 110, and the end of the electric push rod 140 is connected to a rotating shaft 141. The rotating shaft 141 is rotatably connected to the telescopic end of the electric push rod 140 through a bearing. A buffer pad 142 is provided at the end of the rotating shaft 141 away from the electric push rod 140 to reduce rigid impact when clamping the workpiece. The electric push rod 140, the rotating shaft 141, and the buffer pad 142 are coaxially arranged and located directly above the four-jaw linkage chuck 130. The electric push rod 140 drives the rotating shaft 141 and the buffer pad 142 to move downward, so that the buffer pad 142 presses the top of the workpiece. This, together with the four-jaw linkage chuck 130, achieves stable clamping of the workpiece and prevents the workpiece from shifting position during the spraying process. The U-shaped frame 110 is also equipped with a horizontal moving component and a vertical moving component. The horizontal moving component drives the vertical moving component to slide horizontally on the U-shaped frame 110. The vertical moving component is equipped with a nozzle 420. The nozzle 420 is connected to the pigment tank 400 set on the horizontal moving component through a connecting pipe 410. The nozzle 420 can move up and down with the vertical moving component to achieve multi-angle spraying. Multiple pigment tanks 400 can carry different colors of paint to complete the multi-color precision spraying operation on the surface of the workpiece.

[0025] Specifically, the horizontal moving component is a linear motor 200 fixed on the U-shaped frame 110. The linear motor 200 is provided with a slide table 210. The slide table 210 moves back and forth along the linear motor 200. The vertical moving component is fixed on the slide table 210 and moves laterally along the U-shaped frame 110 with the slide table 210.

[0026] Furthermore, the vertical moving assembly includes a mounting plate 300 fixed on the slide table 210. The mounting plate 300 is equipped with a vertically arranged lifting screw 310 and a lifting motor 320 connected to one end of the lifting screw 310. The lifting screw 310 is a ball screw, and a slider 330 is sleeved on the lifting screw 310. The lifting motor 320 drives the lifting screw 310 to rotate, causing the slider 330 to reciprocate vertically along the screw. The spray head 420 is fixed on the slider 330 and rises and falls synchronously with the slider 330 to adjust the spraying height, thereby adapting to the spraying requirements of different workpiece heights. In order to keep the mounting plate 300 stable during movement, a guide rod is provided on the side wall of the U-shaped frame 110. The height of the guide rod on the vertical plane is less than the height of the four-jaw linkage chuck 130. The bottom of the mounting plate 300 is slidably connected to the guide rod, so that the mounting plate 300 remains stable during horizontal and vertical movement, effectively preventing the spray head 420 from shaking and improving the spraying accuracy.

[0027] Furthermore, the pigment bin 400 is fixed on the slide table 210 and moves synchronously with the slide table 210. A pump body is provided at the bottom of the pigment bin 400. The input end of the pump body is connected to the inside of the pigment bin 400, and the output end is connected to the connecting pipe 410. The end of the connecting pipe 410 away from the pump body is connected to the spray head 420. The paint in the pigment bin 400 is transported to the spray head 420 through the pump body to realize the spraying operation. Each pigment bin 400 is equipped with an independent pump body and connecting pipe 410 to ensure that different colors of paint are transported independently and to avoid color mixing and contamination. The number of pump bodies is the same as the number of pigment bins 400, and the pigment bins 400, pump bodies, connecting pipes 410 and spray heads 420 correspond one-to-one to form an independent supply pipeline.

[0028] Furthermore, a mounting base 500 is fixedly connected to the slider 330. A mounting bracket 510 is provided on the upper surface of the mounting base 500. One end of the mounting bracket 510 is hinged to the end of the mounting base 500 near the turntable 120, and the other end of the mounting bracket is connected to the mounting base 500 via a return spring 530, allowing the mounting bracket 510 to rotate around the hinge. The mounting bracket 510 and the mounting base 500 can be connected by a hinge, or other structures can be used to allow rotation around one end. The upper surface of the mounting bracket 510 is provided with a mounting bracket for mounting the nozzle 420. The nozzle 420 is fixed in the mounting slot. A guide ring 520 is provided on the mounting bracket 510. The guide ring 520 is located on the back of the nozzle 420, that is, the end of the nozzle 420 away from the water outlet. It is used to guide and fix the connecting pipe 410. The connecting pipe 410 passes through the guide ring 520 and connects to the interface of the nozzle 420 to prevent the connecting pipe 410 from getting tangled or shifting under force during the movement of the nozzle 420. The connecting pipe 410 is a PU hose with good flexibility and flexural strength to meet the multi-angle movement requirements of the nozzle 420.

[0029] A collection groove 540 is provided on the side of the mounting base 500 near the turntable 120. The collection groove 540 is located directly below the nozzle 420 and is used to collect paint dripping from the nozzle 420 when it is stopped or cleaned, preventing paint from contaminating the workbench 100. A sliding groove 501 is also provided on the upper surface of the mounting base 500. A screw 502 is provided on one side of the sliding groove 501. An adjusting motor 503 is provided at one end of the screw 502. The adjusting motor 503 drives the screw 502 to rotate. The adjusting motor 503 is located on one side of the mounting plate 300 and does not contact the mounting plate 300. A limiting rod is provided on the other side of the sliding groove 501. The moving block 504 is sleeved on the limiting rod and the screw 502. The moving block 504 is driven by the rotation of the screw 502. The movable block 504 slides along the slide groove 501; the side wall of the movable block 504 near the mounting bracket 510 is an inclined surface, which contacts and engages with the bottom of the mounting bracket 510. When the movable block 504 moves towards the turntable 120 under the drive of the screw 502, its inclined surface pushes the mounting bracket 510 to rotate around the hinge, causing the water outlet of the nozzle 420 to tilt downwards. This facilitates the smooth flow of residual paint into the collection tank 540 when the nozzle 420 is stopped or the color is changed, preventing residual paint from clogging inside the nozzle 420 or causing color mixing pollution when changing colors. When the movable block 504 moves in the opposite direction, the return spring 530 drives the mounting bracket 510 to rotate back to the horizontal working position, making the spraying angle of the nozzle 420 accurate.

[0030] The general working process of this utility model is as follows: The workpiece to be sprayed is placed on the four-jaw linkage chuck 130 and clamped. The rotating shaft 141 is pushed down by the electric push rod 140 to abut against the upper end of the workpiece, restricting the axial movement of the workpiece. The spray head 420 is moved to the starting spraying position of the workpiece by the horizontal moving component and the vertical moving component. The rotating motor is started to drive the workpiece to rotate. At the same time, the pump body of the corresponding color paint is turned on, so that the paint is stably delivered to the spray head 420 through the connecting pipe 410 and atomized and evenly sprayed on the surface of the workpiece. When spraying stops, the drive adjustment motor 503 drives the screw 502 to rotate, causing the moving block 504 to move along the slide 501 towards the turntable 120. Its inclined surface gradually lifts the bottom of the mounting bracket 510, forcing the nozzle 420 outlet to tilt downwards. The residual paint flows into the collection tank 540 below under the action of gravity. After the residual paint inside the nozzle 420 is discharged, the adjustment motor 503 reverses, the moving block 504 retracts, and the reset spring 530 pulls the mounting bracket 510 back to a horizontal state, preparing for the next spraying.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-color spraying fixture, characterized in that, include: The workbench has a U-shaped frame above it, a horizontal moving component on the U-shaped frame, and a vertical moving component on the horizontal moving component. Multiple pigment containers are mounted on the horizontal moving component and move synchronously with the vertical moving component. Multiple liftable nozzles are mounted on the vertical moving component, and the nozzles and pigment containers are connected one-to-one via connecting pipes. A turntable is located in the center of the workbench, and a four-jaw chuck is located above the turntable. The jaws of the four-jaw chuck are equipped with anti-slip strips. An electric push rod is also located above the U-shaped frame, extending through the U-shaped frame to above the four-jaw chuck. A rotating shaft is located at the end of the electric push rod near the turntable, and a buffer pad is located at the end of the rotating shaft away from the electric push rod.

2. The multi-color spraying fixture according to claim 1, characterized in that, The workbench is equipped with a rotary motor, which is fixedly connected to the turntable and drives the turntable to rotate.

3. The multi-color spraying fixture according to claim 1, characterized in that, Each pigment container is equipped with a pump body, which is connected to both the pigment container and the connecting pipe.

4. The multi-color spraying fixture according to claim 1, characterized in that, The horizontal movement component includes a linear motor mounted on the U-shaped frame, and the linear motor is equipped with a slide table.

5. A multi-color spraying fixture according to claim 4, characterized in that, The vertical moving assembly includes a mounting plate fixed on the slide table. The mounting plate is provided with a lifting screw for driving the nozzle to move and a lifting motor for driving the lifting screw to rotate. A slider is movably sleeved on the lifting screw, and the nozzle is fixed on the slider.

6. A multi-color spraying fixture according to claim 5, characterized in that, The slider is provided with a mounting base, the mounting base is provided with a mounting bracket, the upper surface of the mounting bracket is provided with a mounting groove, and the nozzle is fixed in the mounting groove.

7. A multi-color spraying fixture according to claim 6, characterized in that, The nozzle has a guide ring on its back, and the connecting pipe passes through the guide ring and connects to the nozzle.

8. A multi-color spraying fixture according to claim 7, characterized in that, One end of the mounting bracket is hinged to the mounting base, and the other end is movably connected to the mounting base via a return spring.

9. A multi-color spraying fixture according to claim 8, characterized in that, The mounting bracket is also provided with a collection trough on the side near the nozzle, which is used to catch the dripping pigment.

10. A multi-color spraying fixture according to claim 9, characterized in that, The upper surface of the mounting base is provided with a sliding groove, and a screw is embedded in the sliding groove. An adjusting motor is provided at the end of the screw, and a moving block is sleeved on the screw. The moving block is used to push the mounting frame to rotate around the hinge end.

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