A paint spraying device for metal product processing

By designing a painting device with replaceable components, the problem of needing to stop the machine to replace the filter components was solved, enabling rapid replacement of filter plates and recycling of paint, thus improving production efficiency.

CN224573933UActive Publication Date: 2026-07-31SICHUAN MEIZHU IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN MEIZHU IND CO LTD
Filing Date
2025-06-24
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing metal product processing spray painting equipment requires shutdown when the filter components are replaced, which affects production efficiency and reduces filtration efficiency.

Method used

A painting device with replaceable components was designed, including a long rod, a guide plate, a rocker arm, and a limiting component, which allows the filter plate to be replaced without stopping the machine, and enables the recycling of the sprayed paint through the guide plate and the pump body.

Benefits of technology

It enables filter plate replacement without shutting down the machine, keeping the painting operation continuous, improving production efficiency, and realizing the recycling of paint.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224573933U_ABST
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Abstract

This utility model relates to the field of spray painting equipment technology, and discloses a spray painting device for metal product processing, including an operating table. A support frame is fixed on the top of the operating table, and a spray pipe is slidably connected to the inner side of the support frame. A cylinder is fixed on the top of the support frame, and the bottom of the output end of the cylinder passes through the support frame and is fixed to the top of the spray pipe. A filter assembly and a replacement assembly are provided on the inner wall and surface of the operating table. The filter assembly includes a cavity. In this spray painting device for metal product processing, when the filter plate needs to be replaced, the rocker arm is rotated to drive the indicator block to slide along the stabilizing groove. The indicator block enters another set of stabilizing grooves, and the long rod is linked to the guide plate to rotate synchronously. By using a limiting component, the rocker arm, long rod, and guide plate are prevented from flipping. This allows the device to switch to a spare filter plate for cleaning and maintenance without stopping the machine, while maintaining continuous spray painting operations.
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Description

Technical Field

[0001] This utility model relates to the field of spray painting equipment technology, specifically a spray painting equipment for metal product processing. Background Technology

[0002] The metal products industry includes the manufacturing of structural metal products, metal tools, containers and metal packaging containers, stainless steel and similar daily-use metal products, etc. With social progress and technological development, metal products are used more and more widely in various fields of industry, agriculture and people's lives, and are creating greater and greater value for society. Metal products inevitably rust, so rust prevention is necessary. Some delicate metal products also inevitably need to be rust-proofed and then painted.

[0003] According to a painting device for metal product processing (Announcement No.: CN218655122U) published in the above application, the residual material can be recycled, which will not cause paint waste. It also has a filtration function, and the recycled paint liquid is free of impurities and can be recycled, which improves the practicality of the painting device.

[0004] However, in the aforementioned applications, filter components such as filter screens experience a decline in filtration efficiency after prolonged use due to paint residue or impurity accumulation, affecting the quality of the recovered paint. Furthermore, existing devices require stopping painting and recycling operations when replacing the filter mechanism, leading to production interruptions and impacting processing efficiency. Since replacing the filter mechanism necessitates machine downtime, it not only increases maintenance time but may also affect production schedules. Especially during batch processing, frequent maintenance reduces overall production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a painting device for metal product processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a painting device for metal product processing, comprising an operating table, a support frame fixed to the top of the operating table, a spray pipe slidably connected to the inner side of the support frame, a cylinder fixed to the top of the support frame, the bottom of the output end of the cylinder penetrating the support frame, and the bottom of the output end of the cylinder fixed to the top of the spray pipe, and a filter assembly and a replacement assembly provided on the inner wall and surface of the operating table;

[0007] The replacement component includes:

[0008] The long rod is used to drive the guide vane to change its angle.

[0009] Deflector plate, used to change the direction of excess paint flow;

[0010] The limiting component is used to prevent the guide plate from rotating due to the impact of the paint spray.

[0011] Preferably, the filter assembly includes a cavity, a long rod rotatably connected to the inner wall of the cavity, one end of the long rod away from the operating table passing through the operating table, a rocker arm rotatably connected to the outer surface of the operating table, the long rod passing through the rocker arm and being fixedly connected to the rocker arm, a fixing ring fixed to the outer surface of the operating table, a guide plate passing through and fixed to the long rod, a stabilizing groove formed on the inner side of the fixing ring, a sliding groove formed on the outer surface of the rocker arm, an indicator block slidably connected to the inner wall of the sliding groove, a spring fixed to one end of the indicator block near the sliding groove, the end of the spring away from the indicator block fixed to the inner wall of the sliding groove, a sliding rod fixed to one side of the indicator block near the spring, the end of the sliding rod away from the indicator block passing through the sliding groove, and two sets of stabilizing grooves. Paint dripping onto the surface of the guide plate is guided by the guide plate to drip onto the filter plate for filtration. When the filter plate needs to be replaced or cleaned, the rocker arm is rotated so that the inclined surface of the indicator block contacts the inner wall of the stabilizing groove, the indicator block moves into the sliding groove and compresses the spring. When the indicator block aligns with another set of stabilizing grooves, the spring releases, causing the indicator block to engage with the stabilizing groove. As the rocker arm rotates, it simultaneously rotates the long rod and the guide plate. The direction of the indicator block always aligns with the direction of the guide plate, facilitating the determination of the paint drip direction and enabling subsequent filter plate replacement without stopping the painting process.

[0012] Preferably, the limiting component includes a rotating rod that passes through a rocker arm. The outer surface of the rotating rod has a through hole. A ring is fixed to the outer surface of the rocker arm. A movable groove is formed on the inner side of the ring. A movable rod is slidably connected to the inner wall of the movable groove. A second spring is fixed to the end of the movable rod away from the center of the ring. The end of the second spring away from the movable rod is fixed to the inner wall of the movable groove. A retaining groove is formed on the outer surface of the rotating rod to limit the rocker arm and prevent it from affecting the flow of paint.

[0013] Preferably, the cavity is located inside the operating table. A fixing plate is fixed to the inner wall of the cavity. Stabilizing plates are fixed to the fixing plate, the surface of the cavity, and the inner wall of the cavity. A filter plate is placed on top of the stabilizing plate. The end of the filter plate away from the operating table passes through the operating table. A conical guide groove is fixed to the top of the inner wall of the cavity. A pump body is fixed to the back of the operating table. The input end of the pump body is connected to the cavity. A flexible hose is fixed to the output end of the pump body. The end of the flexible hose away from the pump body is installed on the surface of the spray pipe to facilitate the filtration of excess paint, thus enabling cyclic operation.

[0014] Preferably, the top of the operating table is provided with a drain hole to facilitate the flow of paint into the cavity.

[0015] Preferably, the filter plate, stabilizing plate, pump body, and hose are each provided in two sets, and the two sets of filter plates, stabilizing plates, pump bodies, and hoses are symmetrically arranged with the center line of the operating table as the axis of symmetry, which facilitates replacement work.

[0016] Preferably, the cross-section of the end of the indicator block away from the first spring is triangular, and the end of the movable rod away from the second spring is set as an arc. The surface of the indicator block abuts against the inner wall of the stabilizing groove, which allows the indicator block to move into the sliding groove. The surface of the movable rod abuts against the inner wall of the slot, which allows the movable rod to move into the movable groove.

[0017] Compared with the prior art, the present invention provides a painting device for metal product processing, which has the following beneficial effects:

[0018] 1. This metal product processing painting device, through the set replacement component, when the filter plate needs to be replaced, rotates the rocker to drive the indicator block to slide along the stabilizing groove. The indicator block enters another set of stabilizing grooves, and the long rod and guide plate rotate synchronously. Through the limiting component, the rocker, long rod and guide plate are prevented from flipping. The device can switch to the spare filter plate for cleaning and maintenance without stopping the machine, while keeping the painting operation continuous.

[0019] 2. The painting device for metal product processing, through the set filter components, allows excess paint to flow back to the cavity through the leakage holes and conical guide grooves, and after being guided to the filter plate by the guide plate to complete filtration, it is pumped out again to realize the recycling of paint. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the operating table of this utility model;

[0023] Figure 4 This is a side view of the partial replacement component of this utility model;

[0024] Figure 5 This is a front view structural diagram of a partial replacement component of this utility model;

[0025] Figure 6 This is a cross-sectional view of the replacement component of this utility model from a bottom angle.

[0026] Figure 7 This is an exploded cross-sectional view of some of the limiting components of this utility model.

[0027] In the diagram: 1. Control panel; 2. Support frame; 3. Cylinder; 4. Spray pipe; 5. High-pressure nozzle; 6. Filter assembly; 60. Cavity; 61. Conical guide channel; 62. Fixing plate; 63. Stabilizing plate; 64. Filter plate; 65. Pump body; 66. Hose; 7. Replacement assembly; 70. Long rod; 71. Guide plate; 72. Rocker arm; 73. Fixing ring; 74. Stabilizing groove; 75. Slide groove; 76. Indicator block; 77. Spring 1; 78. Slide rod; 79. Limiting component; 790. Rotating rod; 791. Through hole; 792. Ring; 793. Movable groove; 794. Movable rod; 795. Spring 2; 796. Slot. Detailed Implementation

[0028] like Figures 1-7 As shown, this utility model provides a technical solution: a painting device for metal product processing, including an operating table 1, a support frame 2 fixed on the top of the operating table 1, a spray pipe 4 slidably connected to the inner side of the support frame 2, a cylinder 3 fixed on the top of the support frame 2, the bottom of the output end of the cylinder 3 penetrating through the support frame 2, and the bottom of the output end of the cylinder 3 fixed to the top of the spray pipe 4, a filter assembly 6 and a replacement assembly 7 are provided on the inner wall and surface of the operating table 1, the filter assembly 6 includes: a cavity 60; the replacement assembly 7 includes: a long rod 70, a guide plate 71, a rocker arm 72, a fixing ring 73, a stabilizing groove 74, a sliding groove 75, an indicator block 76, a first spring 77, a sliding rod 78, a limiting member 79, a rotating rod 790, a through hole 791, a ring 792, a movable groove 793, a movable rod 794, a second spring 795, and a slot 796.

[0029] A long rod 70 is rotatably connected to the inner wall of the cavity 60. The end of the long rod 70 away from the operating table 1 passes through the operating table 1. A rocker arm 72 is rotatably connected to the outer surface of the operating table 1. The long rod 70 passes through the rocker arm 72 and is fixedly connected to the rocker arm 72. A fixing ring 73 is fixed to the outer surface of the operating table 1. A guide plate 71 is passed through and fixed to the long rod 70. A stabilizing groove 74 is opened on the inner side of the fixing ring 73. A sliding groove 75 is opened on the outer surface of the rocker arm 72. An indicator block 76 is slidably connected to the inner wall of the sliding groove 75. A spring 77 is fixed at one end near the slide 75. The end of the spring 77 away from the indicator block 76 is fixed to the inner wall of the slide 75. A slide rod 78 is fixed on the side of the indicator block 76 near the spring 77. The end of the slide rod 78 away from the indicator block 76 passes through the slide 75. Two sets of stabilizing grooves 74 are provided. The limiting member 79 includes a rotating rod 790, which passes through a rocker arm 72. A through hole 791 is opened on the outer surface of the rotating rod 790. A ring 792 is fixed on the outer surface of the rocker arm 72. A movable part is opened on the inner side of the ring 792. The movable groove 793 has a movable rod 794 slidably connected to its inner wall. A spring 795 is fixed to the end of the movable rod 794 furthest from the center of the ring 792. The end of the spring 795 furthest from the movable rod 794 is fixed to the inner wall of the movable groove 793. A slot 796 is formed on the outer surface of the rotating rod 790. The cross-section of the indicator block 76 furthest from the first spring 77 is triangular. The end of the movable rod 794 furthest from the second spring 795 is arc-shaped. When the filter plate 64 needs to be replaced, the operator rotates the rocker arm 794. 2. The indicator block 76 slides along the stabilizing groove 74, and the spring 77 is compressed / released to achieve precise positioning. At the same time, the guide plate 71 rotates synchronously through the long rod 70. The rotating rod 790 achieves a self-locking function through the engagement of the movable rod 794 and the slot 796. The sliding of the slide rod 78 in the through hole 791 ensures smooth rotation. The position of the guide plate 71 can be locked by reversing the operation. The system adopts a dual filter plate 64 design, which can be switched to the spare filter plate 64 for cleaning and maintenance without stopping the machine, while keeping the painting operation continuous.

[0030] A cavity 60 is formed inside the operating table 1. A fixing plate 62 is fixed to the inner wall of the cavity 60. A stabilizing plate 63 is fixed to the surface and inner wall of the cavity 60 along with the fixing plate 62. A filter plate 64 is placed on top of the stabilizing plate 63. The end of the filter plate 64 away from the operating table 1 passes through the operating table 1. A conical guide groove 61 is fixed to the top of the inner wall of the cavity 60. A pump body 65 is fixed to the back of the operating table 1. The input end of the pump body 65 is connected to the cavity 60. A hose 66 is fixed to the output end of the pump body 65. The end of the hose 66 away from the pump body 65 is installed on the surface of the spray pipe 4. There are two sets of filter plates 64, stabilizing plates 63, pump bodies 65, and hoses 66. The two sets of filter plates 64, stabilizing plates 63, pump bodies 65, and hoses 66 are symmetrically arranged with the center line of the operating table 1 as the axis of symmetry. When the pump body 65 is started, the paint is transported to the spray pipe 4 through the hose 66 and the spraying operation is completed through the high-pressure nozzle 5. Excess paint flows back to cavity 60 through the drain hole and conical guide groove 61, is guided to filter plate 64 by guide plate 71 to complete filtration, and is then pumped out again by pump body 65 to realize the recycling of paint.

[0031] The top of the control panel 1 is provided with a drain hole to facilitate excess paint to enter the cavity 60.

[0032] During processing, the metal product is placed on top of the workbench 1, and paint is injected through the drain hole. At this time, the cylinder 3 is activated, causing the spray pipe 4 to move downwards, positioning the high-pressure nozzle 5 above the metal product. The pump body 65 is then activated, allowing paint to enter the spray pipe 4 through the hose 66 and be sprayed out through the high-pressure nozzle 5, thus commencing the painting process. Excess paint flows through the drain hole and the conical guide groove 61 into the cavity 60, where it drips onto the surface of the guide plate 71. Guided by the guide plate 71, the paint drips onto the filter plate 64, thus performing the filtration process. At this point, the filter is extracted again through pump body 65. When the filter plate 64 needs to be replaced and cleaned, the rocker arm 72 is rotated, and the inclined surface of the indicator block 76 abuts against the inner wall of the stabilizing groove 74. The indicator block 76 moves into the sliding groove 75, and the spring 77 is compressed. When the indicator block 76 is parallel to another set of stabilizing grooves 74, the spring 77 is released, and the indicator block 76 enters the stabilizing groove 74. At the same time, when the rocker arm 72 rotates, it synchronously drives the long rod 70 and the guide plate 71 to rotate synchronously. The direction of the indicator block 76 is consistent with the direction of the guide plate 71, which makes it convenient for personnel to judge the direction of paint dripping. Simultaneously, when the rocker arm 72 is rotated, the rotating rod 790 is also rotated. At this time, the inner wall of the slot 796 abuts against the surface of the movable rod 794, which can drive the movable rod 794 to move into the movable slot 793. The second spring 795 is compressed. When the position of the movable rod 794 is parallel to the slot 796, the second spring 795 is released, which can drive the movable rod 794 into the slot 796, preventing the rotating rod 790 from rotating on its own. At this time, the position of the through hole 791 is parallel to the slide rod 78, so that when the indicator block 76 moves, the slide rod 78 can move back and forth in the through hole 791 without affecting the forward and backward movement of the rocker arm 72. When the rocker arm 72 and the guide plate 71 are properly adjusted, rotate the rotating rod 790 again so that the through hole 791 and the slide rod 78 are staggered. At this time, the surface of the slide rod 78 abuts against the surface of the rotating rod 790, which limits the indicator block 76, thus preventing the rocker arm 72 from rotating. This avoids the impact of the paint spraying causing the guide plate 71 to flip over and affect the flow direction of the paint. At this time, another set of filter plates 64 performs filtration. At this time, another set of pumps 65 can be turned on to work. The filter plates 64 that need to be replaced can be pulled out for replacement and cleaning without stopping the painting process, thus improving the processing efficiency.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A paint spraying device for metal product processing, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixed with a support frame (2), and a spray pipe (4) is slidably connected to the inner side of the support frame (2). A cylinder (3) is fixed on the top of the support frame (2). The bottom of the output end of the cylinder (3) passes through the support frame (2), and the bottom of the output end of the cylinder (3) is fixed on the top of the spray pipe (4). A filter assembly (6) and a replacement assembly (7) are provided on the inner wall and surface of the operating table (1). The replacement component (7) includes: The long rod (70) is used to drive the guide plate (71) to change its angle; A deflector (71) is used to change the direction of excess paint flow; A limiting component (79) is used to prevent the guide plate (71) from rotating due to the impact of the paint spraying. The filter assembly (6) includes a cavity (60). The long rod (70) is rotatably connected to the inner wall of the cavity (60). The end of the long rod (70) away from the operating table (1) passes through the operating table (1). A rocker arm (72) is rotatably connected to the outer surface of the operating table (1). The long rod (70) passes through the rocker arm (72), and the long rod (70) and the rocker arm (72) are fixed. The control panel (1) is fixed with a fixed ring (73) on its outer surface. A guide plate (71) is fixed through the long rod (70). A stabilizing groove (74) is provided on the inner side of the fixed ring (73). A sliding groove (75) is provided on the outer surface of the rocker arm (72). An indicator block (76) is slidably connected to the inner wall of the sliding groove (75). A spring (77) is fixed to one end of the indicator block (76) near the sliding groove (75). The spring (77) is located away from the indicator block. One end of the indicator block (76) is fixed to the inner wall of the slide groove (75). A slide rod (78) is fixed on the side of the indicator block (76) near the spring (77). The end of the slide rod (78) away from the indicator block (76) passes through the slide groove (75). Two sets of stabilizing grooves (74) are provided. The limiting member (79) includes a rotating rod (790). The rotating rod (790) passes through the rocker arm (72). A through hole (791) is opened on the outer surface of the rotating rod (790). The rocker arm (72) A ring (792) is fixed on the outer surface of the rotating rod (790). A movable groove (793) is provided on the inner side of the ring (792). A movable rod (794) is slidably connected to the inner wall of the movable groove (793). A spring (795) is fixed at one end of the movable rod (794) away from the center of the ring (792). The end of the spring (795) away from the movable rod (794) is fixed on the inner wall of the movable groove (793). A slot (796) is provided on the outer surface of the rotating rod (790).

2. The paint spraying device for metal product processing according to claim 1, characterized in that: The cavity (60) is located inside the operating table (1). A fixing plate (62) is fixed to the inner wall of the cavity (60). A stabilizing plate (63) is fixed to the surface and inner wall of the cavity (60) along with the fixing plate (62). A filter plate (64) is placed on the top of the stabilizing plate (63). The end of the filter plate (64) away from the operating table (1) passes through the operating table (1). A conical guide groove (61) is fixed to the top of the inner wall of the cavity (60). A pump body (65) is fixed to the back of the operating table (1). The input end of the pump body (65) is connected to the cavity (60). A hose (66) is fixed to the output end of the pump body (65). The end of the hose (66) away from the pump body (65) is installed on the surface of the spray pipe (4).

3. The paint spraying device for metal product processing according to claim 1, characterized in that: The top of the operating table (1) is provided with a drainage hole.

4. The paint spraying device for metal product processing according to claim 2, characterized in that: The filter plate (64), stabilizing plate (63), pump body (65), and hose (66) are all provided in two sets, and the two sets of filter plates (64), stabilizing plate (63), pump body (65), and hose (66) are symmetrically arranged with the center line of the operating table (1) as the axis of symmetry.

5. The paint spraying device for metal product processing according to claim 2, characterized in that: The cross-section of the end of the indicator block (76) away from the first spring (77) is triangular, and the end of the movable rod (794) away from the second spring (795) is set as an arc.