Suspension conveying device applied to spraying production line

Abstract

The invention relates to the technical field of suspension conveying, in particular to a suspension conveying device applied to a spraying production line, which comprises a supporting mechanism, the supporting mechanism comprises a conveying track, a fixing frame is fixedly connected to the outer wall of the top of the conveying track, and a driving device is fixedly connected to the outer wall of one side, close to the conveying track, of the fixing frame. A second connecting frame is fixedly connected to the outer wall of the side, close to the driving equipment, of the conveying rail, after the sliding frame slides to an extrusion plate, the sliding frame slides downwards under the action of the extrusion plate, then a rotating rod pushes an overturning rod to deflect towards one side of a connecting block on a hanging rod, the hanging rod for hanging a workpiece can be stably clamped in the spraying process, and the spraying efficiency is improved. Workpiece shaking caused by impact of the spray gun can be effectively restrained, stable relative distance and angle between the workpiece and the spray gun can be guaranteed, quality defects such as uneven coating thickness, edge over-spraying or missing spraying can be avoided, and therefore spraying operation consistency and appearance quality of the workpiece coating can be improved.

Description

Technical Field

[0001] This invention relates to the field of overhead conveying technology, and more specifically, to an overhead conveying device applied to a spraying production line. Background Technology

[0002] The spray coating production line integrates pretreatment processes such as degreasing, rust removal, and phosphating of workpiece surfaces, core spraying processes such as electrostatic spraying and high-pressure airless spraying, curing processes such as high-temperature baking and ultraviolet curing, and the entire process of logistics transmission and positioning through professional automated equipment and intelligent control systems. This forms a continuous operation process. The production line is widely used in industries such as automobiles, home appliances, and building materials. Its goal is to achieve high-efficiency output, high-quality forming, and high specification consistency in coating operations while reducing human intervention and environmental impact, and at the same time achieving green production requirements of low pollution emissions and low material loss.

[0003] Therefore, it can be seen that when spraying a workpiece, the impact force generated by the spray gun will cause the workpiece to shake continuously, which will change the relative distance and angle between the workpiece and the spray gun, directly affecting the spraying quality: if the distance between the two is too close, the paint is prone to local accumulation, resulting in an excessively thick paint film; if the distance is too far, the paint film will become thin, unevenly covered, with poor gloss or exposed substrate. At the same time, the change in angle will further aggravate the unevenness of the coating thickness, and it is easy to form spraying blind spots or over-spraying problems at the edges and corners of the workpiece, ultimately damaging the consistency of the coating appearance. Summary of the Invention

[0004] This invention provides a suspended conveyor device for use in a spray coating production line. Its sliding frame, driven by a rotating rod, deflects a tilting rod towards the hanging rod, which in turn presses a connecting block fixedly fitted to the outer wall of the hanging rod via an extrusion block. This causes the extrusion block and the support frame to clamp the connecting block together. Therefore, it effectively suppresses continuous shaking of the workpiece caused by the impact force of the spray gun when spraying the workpiece on the hanging rod from the spray booth, ensuring that the relative distance and angle between the workpiece and the spray gun remain stable. This avoids problems such as localized paint accumulation and excessively thick paint film caused by excessively close proximity, and thinner paint film, uneven coverage, insufficient gloss, and exposed substrate caused by excessive distance. Furthermore, it prevents angular deviation from exacerbating uneven coating thickness and preventing spraying blind spots or overspray at workpiece edges and corners, thus ensuring the appearance quality of the workpiece coating. This addresses the issue of consistency in coating, specifically the problem mentioned in the background section. During the spraying process, the impact force generated by the spray gun causes continuous shaking of the workpiece. This directly affects the relative distance and angle between the spray gun and the workpiece, impacting the coating quality. When the relative distance is too close, paint tends to accumulate locally on the workpiece surface, resulting in excessive film thickness. If the relative distance is too far, insufficient film thickness, uneven coverage, poor gloss, or even exposed substrate may occur. Furthermore, the angular deviation between the spray gun and the workpiece further exacerbates the unevenness of the coating thickness and easily creates blind spots or overspray at the edges and corners of the workpiece, ultimately compromising the consistency of the coating appearance.

[0005] To achieve the above objectives, the suspended conveyor device applied to the spraying production line includes a support mechanism, which includes a conveying track. A fixed frame is fixedly connected to the top outer wall of the conveying track. A drive device is fixedly connected to the outer wall of the fixed frame near the conveying track. A second connecting frame is fixedly connected to the outer wall of the conveying track near the drive device. A lifting plate is fixedly connected to the inner wall of the second connecting frame away from the conveying track. A first connecting frame is fixedly connected to the outer wall of the conveying track away from the second connecting frame. An extrusion plate is fixedly connected to the inner wall of the first connecting frame away from the conveying track. A spraying chamber is provided on the outer side of the conveying track near the first connecting frame. A reinforcement mechanism is provided on the side of the conveying track away from the fixed frame. In the above technical solution, the reinforcement mechanism includes at least two movable frames. The top of each movable frame is rotatably connected to a roller via a pivot. The roller is rolled on the inner wall of the conveying track. Adjacent movable frames are rotatably connected to a connecting rod via a pivot. The bottom of each movable frame is fixedly connected to a fixed shaft. A fixed block is fixedly connected to the end of the fixed shaft away from the movable frame. A suspension assembly is provided on the outside of the fixed shaft.

[0006] Preferably, the inner wall of the fixed block is rotatably connected to a flipping rod via a rotating shaft. The end of the flipping rod away from the fixed block is fixedly connected to a pressing block. When the sliding frame slides to the pressing plate, the sliding frame slides downward under the action of the pressing plate, thereby causing the rotating rod to push the flipping rod to deflect towards the connecting block on the hanging rod. This can securely clamp the hanging rod of the suspended workpiece during the spraying process, effectively suppressing the workpiece shaking caused by the impact of the spray gun, ensuring that the workpiece and the spray gun maintain a stable relative distance and angle, and thus avoiding quality defects such as uneven coating thickness, overspraying at the edges, or missed spraying. Therefore, it can improve the consistency of the spraying operation and the appearance quality of the workpiece coating.

[0007] Based on the above, the suspension assembly includes a sliding frame that is slidably sleeved on the outer surface of the fixed shaft. A spring is connected between the sliding frame and the fixed block, and two balls are slidably connected to the top inner wall of the sliding frame.

[0008] Meanwhile, a hook is fixedly connected to the bottom of the sliding frame, a hanging rod is suspended on the hook, and a connecting block is fixedly sleeved on one end of the hanging rod near the hook.

[0009] Based on the above, the ball bearings can selectively roll into contact with the lower surface of the extrusion plate or the upper surface of the lifting plate to press down or lift the sliding frame.

[0010] It is worth noting that a support frame is fixedly connected to the sliding frame, and a metal sheet is fixedly connected to the support frame. A magnetic attractor is fixedly connected to the inner wall of the connecting block near the metal sheet. The magnetic attractor is magnetically connected to the metal sheet. When the sliding frame slides to the position of the lifting plate, it is lifted upward under the action of the lifting plate. During this process, the ball bearings on the sliding frame come into contact with the upper surface of the lifting plate. Then, the sliding frame drives the flipping rod to deflect outward through the rotating rod, so that the pressing block no longer exerts a pressing effect on the connecting block. At this time, an operating space is formed between the pressing block and the hook, which facilitates the operation of picking up and putting down the hanging rod. At the same time, when the hanging rod is suspended on the hook, the magnetic attractor fixed to the inner wall of the connecting block will form a magnetic connection with the metal sheet, which facilitates the installation and positioning of the hanging rod and helps to ensure that the hanging rod can always maintain a vertical posture after installation.

[0011] Preferably, the inner wall of the flipping rod near the fixed block is rotatably connected to a rotating rod via a rotating shaft, and the end of the rotating rod away from the flipping rod is rotatably connected to the sliding frame.

[0012] It is worth noting that the middle area of ​​the lifting plate is higher than both ends, and the two ends of the lifting plate are set as upward guiding inclined surfaces to guide the balls to roll to their upper surface. The lifting plate is used to lift the sliding frame. At the same time, the middle area of ​​the pressing plate is lower than both ends, and the two ends of the pressing plate are set as downward guiding inclined surfaces. The pressing plate is used to guide the balls to roll to their lower surface and to press down the sliding frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This device is used in the suspended conveyor of the spraying production line. When the sliding frame slides to the extrusion plate, it slides downward under the action of the extrusion plate, which in turn causes the rotating rod to push the flipping rod to deflect towards the connecting block on the hanging rod. This can firmly clamp the hanging rod of the suspended workpiece during the spraying process, effectively suppressing the workpiece shaking caused by the impact of the spray gun, ensuring that the workpiece and the spray gun maintain a stable relative distance and angle, and thus avoiding quality defects such as uneven coating thickness, overspraying or missed spraying at the edges. Therefore, it can improve the consistency of the spraying operation and the appearance quality of the workpiece coating.

[0014] This device is used in the suspended conveyor system of the spraying production line. When the sliding frame slides to the position of the lifting plate, it is lifted upward under the action of the lifting plate. During this process, the ball bearings on the sliding frame come into contact with the upper surface of the lifting plate. Then, the sliding frame drives the flipping rod to deflect outward through the rotating rod, so that the extrusion block no longer exerts an extrusion force on the connecting block. At this time, an operating space is formed between the extrusion block and the hook, which makes it convenient for the staff to pick up and put down the hanging rod. At the same time, when the hanging rod is suspended on the hook, the magnetic attraction fixed on the inner wall of the connecting block will form a magnetic attraction connection with the metal sheet, which facilitates the installation and positioning of the hanging rod and helps to ensure that the hanging rod can always maintain a vertical posture after installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the support mechanism structure of the present invention; Figure 3 This is a schematic diagram of the reinforcement mechanism structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the reinforcement mechanism structure of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the suspension assembly of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the suspension assembly structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the reinforcement mechanism of the present invention during operation; Figure 8 For the present invention Figure 1 A magnified structural diagram of A in the middle.

[0016] The meanings of the labels in the diagram are as follows: 1. Support mechanism; 101. Conveying track; 102. Fixed frame; 103. Drive device; 104. First connecting frame; 105. Extrusion plate; 106. Second connecting frame; 107. Lifting plate; 2. Spraying chamber; 3. Reinforcing mechanism; 301. Moving frame; 302. Roller; 303. Fixed shaft; 304. Fixed block; 305. Tilting rod; 306. Rotating rod; 307. Extrusion block; 308. Suspension assembly; 3081. Sliding frame; 3082. Spring; 3083. Hook; 3084. Support frame; 3085. Metal sheet; 3086. Hanging rod; 3087. Connecting block; 3088. Magnetic component; 3089. Ball bearing; 4. Connecting rod. Detailed Implementation

[0017] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0018] During the spraying process, the impact force generated by the spray gun causes the workpiece to shake continuously. This shaking leads to fluctuations in the relative distance and angle between the spray gun and the workpiece, which in turn affects the spraying quality. If the relative distance between the two is too close, the paint is prone to accumulate locally on the workpiece surface, resulting in excessive paint film thickness. If the relative distance is too far, insufficient paint film thickness, uneven coating, and poor gloss will occur. In severe cases, the substrate may even be exposed. Furthermore, the angular deviation between the spray gun and the workpiece will further amplify the problem of uneven coating thickness and easily create spraying blind spots or cause overspraying at the edges and corners of the workpiece, ultimately destroying the consistency of the coating appearance.

[0019] Therefore, in view of the above-mentioned problems, the present invention provides a suspended conveyor device for use in a spray painting production line, with reference to... Figure 1-2As shown, the system includes a support mechanism 1, which includes a conveying track 101. A fixed frame 102 is fixedly connected to the top outer wall of the conveying track 101. A driving device 103 is fixedly connected to the outer wall of the fixed frame 102 near the conveying track 101. A second connecting frame 106 is fixedly connected to the outer wall of the conveying track 101 near the driving device 103. A lifting plate 107 is fixedly connected to the inner wall of the second connecting frame 106 away from the conveying track 101. A first connecting frame 104 is fixedly connected to the outer wall of the conveying track 101 away from the second connecting frame 106. An extrusion plate 105 is fixedly connected to the inner wall of the first connecting frame 104 away from the conveying track 101. A spraying chamber 2 is provided on the outer side of the conveying track 101 near the first connecting frame 104. A reinforcing mechanism 3 is provided on the side of the conveying track 101 away from the fixed frame 102. refer to Figure 3-4 As shown, the reinforcement mechanism 3 includes a movable frame 301, a drive device 103 for driving the chain to move, the inner wall of the movable frame 301 is connected to the chain, the chain drives the reinforcement mechanism 3 to move as a whole through a pawl, the top of the movable frame 301 is rotatably connected to a roller 302 through a rotating shaft, the roller 302 is rolled on the inner wall of the conveying track 101, two adjacent movable frames 301 are rotatably connected to a connecting rod 4 through a rotating shaft, the bottom of the movable frame 301 is fixedly connected to a fixed shaft 303, the end of the fixed shaft 303 away from the movable frame 301 is fixedly connected to a fixed block 304, and a suspension assembly 308 is provided on the outside of the fixed shaft 303.

[0020] refer to Figure 5-6 As shown, the suspension assembly 308 includes at least two sliding frames 3081. The sliding frames 3081 are slidably sleeved on the outer surface of the fixed shaft 303. A spring 3082 is connected between the sliding frame 3081 and the fixed block 304. Two balls 3089 are rolledly connected to the top inner wall of the sliding frame 3081. A flipping rod 305 is rotatably connected to the inner wall of the fixed block 304 via a rotating shaft. A pressing block 307 is fixedly connected to the end of the flipping rod 305 away from the fixed block 304. The pressing block 307 is used to apply a pressing force to the connecting block 3087. A rotating rod 306 is rotatably connected to the inner wall of the flipping rod 305 near the fixed block 304 via a rotating shaft. The end of the rotating rod 306 away from the flipping rod 305 is rotatably connected to the sliding frame 3081.

[0021] Furthermore, during the movement of the movable frame 301, refer to Figure 7-8As shown, a hook 3083 is fixedly connected to the bottom of the sliding frame 3081, and a hanging rod 3086 is suspended on the hook 3083. The workpiece to be sprayed is mounted on the hanging rod 3086. A connecting block 3087 is fixedly sleeved at one end of the hanging rod 3086 near the hook 3083. A ball bearing 3089 can selectively roll into contact with the lower surface of the extrusion plate 105 or the upper surface of the lifting plate 107 to press down or lift the sliding frame 3081. When it is necessary to install the hanging rod 3086... During disassembly and assembly, since the middle area of ​​the lifting plate 107 is higher than both ends, the two ends of the lifting plate 107 are set as upward guiding inclined surfaces to guide the balls 3089 to roll to its upper surface. The lifting plate 107 is used to lift the sliding frame 3081. When the sliding frame 3081 is lifted upward under the action of the lifting plate 107, as the balls 3089 contact the upper surface of the lifting plate 107, the sliding frame 3081 drives the flipping rod 305 to deflect outward through the rotating rod 306 (e.g., Figure 7 As shown in F2, the squeezing block 307 no longer exerts a squeezing effect on the connecting block 3087, thereby creating an operating space between the squeezing block 307 and the hook 3083 for workers to pick up and put down the hanging rod 3086, thus facilitating the disassembly and assembly of the hanging rod 3086.

[0022] During the spraying operation, the middle area of ​​the extrusion plate 105 is lower than its two ends. The two ends of the extrusion plate 105 are set as downward guiding inclined surfaces. The extrusion plate 105 is used to guide the ball bearing 3089 to roll to its lower surface. The extrusion plate 105 is used to press down the sliding frame 3081. In this state, the sliding frame 3081 drives the flipping rod 305 to deflect towards the hanging rod 3086 through the rotating rod 306. Then, the extrusion block 307 presses the connecting block 3087 fixedly sleeved on the outer wall of the hanging rod 3086, thereby clamping the connecting block 3087 between the extrusion block 307 and the support frame 3084 (e.g., Figure 7 As shown in F1, this effectively prevents the workpiece from continuously shaking due to the impact force of the spray gun when the spraying chamber 2 sprays the workpiece on the hanging rod 3086, ensuring that the relative distance and angle between the workpiece and the spray gun remain stable. Therefore, it avoids problems such as local paint accumulation and excessively thick paint film caused by the distance between the two being too close, or thinning of the paint film, uneven coverage, insufficient gloss, and exposure of the substrate caused by the distance being too far. At the same time, it can prevent the angle deviation from aggravating the uneven coating thickness, as well as the generation of spraying blind spots or overspray at the edges and corners of the workpiece. Therefore, it can ensure the consistency of the appearance quality of the workpiece coating.

[0023] A support frame 3084 is fixedly connected to the sliding frame 3081. When the support frame 3084 abuts against the connecting block 3087 on the outer surface of the hanging rod 3086, it can ensure that the hanging rod 3086 is in a vertical state, thereby providing support for subsequent workpiece spraying operations. A metal sheet 3085 is fixedly connected to the support frame 3084. The metal sheet 3085 is made of iron. A magnetic suction component 3088 is fixedly connected to the inner wall of the connecting block 3087 near the metal sheet 3085. The magnetic suction component 3088 is magnetically connected to the metal sheet 3085. When the hanging rod 3086 is hung on the hook 3083, the magnetic suction component 3088 fixed to the inner wall of the connecting block 3087 forms a magnetic connection with the metal sheet 3085. By realizing the installation and positioning of the hanging rod 3086, it helps to ensure that the hanging rod 3086 can maintain a vertical posture after installation.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspended conveying device applied to a spraying production line, comprising a support mechanism (1), the support mechanism (1) comprising a conveying track (101), a fixed frame (102) fixedly connected to the top outer wall of the conveying track (101), a driving device (103) fixedly connected to the outer wall of the fixed frame (102) near the conveying track (101), a second connecting frame (106) fixedly connected to the outer wall of the conveying track (101) near the driving device (103), a lifting plate (107) fixedly connected to the inner wall of the second connecting frame (106) away from the conveying track (101), a first connecting frame (104) fixedly connected to the outer wall of the conveying track (101) away from the second connecting frame (106), an extrusion plate (105) fixedly connected to the inner wall of the first connecting frame (104) away from the conveying track (101), and a spraying chamber (2) provided on the outer side of the conveying track (101) near the first connecting frame (104), characterized in that: A reinforcement mechanism (3) is provided on the side of the conveying track (101) away from the fixed frame (102); The reinforcement mechanism (3) includes: At least two movable frames (301) are provided. The top of each movable frame (301) is rotatably connected to a roller (302) via a pivot. The roller (302) is rolled on the inner wall of the conveying track (101). A connecting rod (4) is rotatably connected between two adjacent movable frames (301) via a pivot. A fixed shaft (303) is fixedly connected to the bottom of each movable frame (301). A fixed block (304) is fixedly connected to one end of the fixed shaft (303) away from the movable frame (301). A suspension assembly (308) is provided on the outside of the fixed shaft (303).

2. The overhead conveyor device for a spray painting production line according to claim 1, characterized in that: The inner wall of the fixed block (304) is rotatably connected to a flipping rod (305) via a rotating shaft, and a pressing block (307) is fixedly connected to one end of the flipping rod (305) away from the fixed block (304).

3. The overhead conveyor device for use in a spray painting production line according to claim 2, characterized in that: The suspension assembly (308) includes a sliding frame (3081) which is slidably sleeved on the outer surface of the fixed shaft (303), and a spring (3082) is connected between the sliding frame (3081) and the fixed block (304).

4. The overhead conveyor device for a spray painting production line according to claim 3, characterized in that: The top inner wall of the sliding frame (3081) is rotatably connected with two balls (3089).

5. The overhead conveyor device for a spray painting production line according to claim 4, characterized in that: The bottom of the sliding frame (3081) is fixedly connected to a hook (3083), and a hanging rod (3086) is suspended on the hook (3083). A connecting block (3087) is fixedly sleeved on one end of the hanging rod (3086) near the hook (3083).

6. The overhead conveyor device for a spray painting production line according to claim 5, characterized in that: The ball bearing (3089) can selectively roll into contact with the lower surface of the extrusion plate (105) or the upper surface of the lifting plate (107) to press down or lift the sliding frame (3081).

7. The overhead conveyor device for use in a spray painting production line according to claim 5, characterized in that: A support frame (3084) is fixedly connected to the sliding frame (3081), and a metal sheet (3085) is fixedly connected to the support frame (3084). A magnetic attractor (3088) is fixedly connected to the inner wall of the connecting block (3087) near the metal sheet (3085), and the magnetic attractor (3088) is magnetically connected to the metal sheet (3085).

8. The overhead conveyor device for a spray painting production line according to claim 3, characterized in that: The inner wall of the flipping rod (305) near the fixed block (304) is rotatably connected to a rotating rod (306) via a rotating shaft. The end of the rotating rod (306) away from the flipping rod (305) is rotatably connected to the sliding frame (3081).

9. The overhead conveyor device for a spray painting production line according to claim 5, characterized in that: The middle area of ​​the lifting plate (107) is higher than both ends. The two ends of the lifting plate (107) are set as upward guiding inclined surfaces to guide the ball (3089) to roll to its upper surface. The lifting plate (107) is used to lift the sliding frame (3081).

10. The overhead conveyor device for a spray painting production line according to claim 5, characterized in that: The middle region of the extrusion plate (105) is lower than its two ends, and the two ends of the extrusion plate (105) are set as downwardly guiding inclined surfaces. The extrusion plate (105) is used to guide the ball (3089) to roll to its lower surface. The extrusion plate (105) is used to press down the sliding frame (3081).

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