A surface paint baking device for automobile parts

Abstract

The present application relates to the technical fields of automobile parts surface baking paint, and proposes an automobile parts surface baking paint device, which comprises a baking paint box main body and a support frame for supporting automobile parts, a drying groove is formed on the baking paint box main body, a support column is rotatably installed on the drying groove, a motor for driving the support column to rotate is fixedly installed on the baking paint box main body, two groups of support rings are slidably installed on the support column, and four groups of adjusting plates are rotatably installed on each group of support rings. The automobile parts placed on the placing plate are in a horizontal state and far away from the radiation source, when the paint on the automobile parts is preliminarily solidified, two groups of electric telescopic rods are synchronously started to drive two groups of limiting rings to move close to each other, the two groups of limiting rings are synchronously moved to push the support frame to move on the limiting column, the support frame is moved to drive the automobile parts to move, and the situation that the solvent in the paint film is sharply vaporized due to the close distance between the automobile parts and the radiation source is avoided.

Description

Technical Field

[0001] This invention relates to the field of automotive parts surface painting technology, specifically to an automotive parts surface painting apparatus. Background Technology

[0002] Automotive parts are independent units or components that make up a car and enable its various functions. Through precise design and manufacturing processes, they work together to ensure the safety, performance, and comfort of the vehicle. Before automotive parts are processed and assembled, some parts need to undergo a baking paint treatment to ensure their aesthetics and corrosion and water resistance. Currently, automotive parts baking paint processes are mainly divided into three categories: dip coating, electrostatic spraying, and air spraying followed by drying. Among these, the drying process after spraying generally uses a fixed baking paint rack or a simple rotating bracket.

[0003] Patent document CN224072531U discloses a paint baking rack for automotive parts. The protected claim includes a base plate, on which a rotating shaft is rotatably mounted. A support plate is welded to the top of the rotating shaft, and a support rod for supporting the automotive parts is welded to the support plate. A partition is fixedly sleeved on the support rod. A cover is fixedly mounted on the base plate, and a paint baking lamp for drying the paint on the inner wall of the cover is fixedly mounted. A rotating mechanism for rotating the automotive parts is mounted on the base plate. This solution solves the technical problem that during the paint baking process, the paint baking process needs to be stopped before the parts can be flipped, resulting in a time-consuming and labor-intensive process. However, in the early stages of spraying or baking, the paint is not yet surface-dry and is in a fluid state. When components are close to a radiation source, the intense radiant heat causes the surface temperature of the parts to spike instantly. This leads to the rapid vaporization of the solvent inside the paint film, which breaks through the uncured surface paint film, resulting in pinholes and bubbles covering the paint surface. The parts lose their smoothness and gloss, rendering them unusable. Furthermore, because the parts are tilted against the support rod, localized overheating causes a sharp drop in paint film viscosity and increased fluidity. Gravity decomposes into a component force along the inclined surface, causing the wet paint to flow downwards, forming runs. Especially during the painting process of large sheet metal parts or irregularly shaped structural parts, the paint film thickness deviation caused by runs can reach more than 50μm, far exceeding the industry standard tolerance range of 20μm. The paint film on the upper part of the part becomes increasingly thin, while the paint film on the lower part accumulates excessively thick. After subsequent curing, obvious orange peel, pinholes, or cracks will appear, seriously affecting the appearance and corrosion resistance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a paint baking device for automotive parts, which solves the problem of rapid solvent vaporization inside the paint film caused by the close proximity of automotive parts to a radiation source.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A paint baking device for automotive parts includes a paint baking box body and a support frame for supporting automotive parts. The paint baking box body has a drying trough, and a support column is rotatably mounted on the drying trough. A motor for driving the support column to rotate is fixedly mounted on the paint baking box body. Two sets of support rings are slidably mounted on the support column. Four sets of adjusting plates are rotatably mounted on each set of support rings. A support frame is rotatably mounted on the adjusting plates, and the support frame is rotatably connected to the two sets of adjusting plates. Two sets of support plates are fixedly mounted on the support frame. A placement plate for placing automotive parts that need to be painted is rotatably mounted on each set of support plates. The support column is equipped with an adjustment mechanism for adjusting the position of the placement plate and an adjustment mechanism for adjusting the angle of the placement plate. The adjustment mechanism enables the four sets of support frames on the support column to move the placement plate synchronously while simultaneously rotating the adjustment mechanism, causing the placement plate and the support plate to rotate.

[0006] Preferably, the adjustment mechanism includes two sets of first limiting grooves opened on the support column, and the support ring is slidably installed on the first limiting groove. The support column is provided with two sets of cross grooves communicating with the first limiting groove. Each set of cross grooves is slidably installed with a cross block fixedly connected to the support ring.

[0007] Preferably, the adjustment mechanism further includes two sets of electric telescopic rods fixedly installed on the support column, the movable end of the electric telescopic rods being fixedly connected to the cross block, and the support column having two sets of annular grooves communicating with the first limiting groove.

[0008] Preferably, the adjustment mechanism further includes two sets of springs sleeved on the support column and located on the annular groove, and eight sets of limiting columns that are slidably connected to the support frame are fixedly installed on the support column.

[0009] Preferably, the adjustment mechanism includes four sets of fixing plates fixedly installed on the support column, and each set of fixing plates is fixedly installed with a toothed plate that is slidably connected to the support frame.

[0010] Preferably, the adjustment mechanism further includes a rotating rod rotatably mounted on the support frame, a gear rotatably connected to the support frame is fixedly mounted on the rotating rod, and the gear meshes with the gear plate. Each set of the support frame is provided with two sets of No. 2 limiting grooves.

[0011] Preferably, the adjustment mechanism further includes a sliding plate slidably mounted on the second limiting groove, a threaded rod threadedly connected to the sliding plate is rotatably mounted on the second limiting groove, the threaded rod is fixedly connected to the rotating rod and located at both ends of the rotating rod, and two sets of fixed rods slidably connected to the sliding plate are fixedly mounted on the second limiting groove.

[0012] Preferably, the adjustment mechanism further includes a support base fixedly installed on the placement plate, and a limiting plate slidably installed on the support base and rotatably connected to the sliding plate.

[0013] Preferably, multiple sets of dryers are fixedly installed on the main body of the paint baking box, and two sets of box doors are rotatably installed on the main body of the paint baking box.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the setting of the adjustment mechanism, ensures that the automotive parts placed on the placement plate are in a horizontal state and far away from the radiation source. When the paint on the automotive parts is initially cured, two sets of electric telescopic rods are simultaneously activated, driving two sets of limiting rings to move closer to each other. The two sets of limiting rings move synchronously, pushing the support frame to move on the limiting post. The movement of the support frame causes the automotive parts on the placement plate to move, allowing the automotive parts to move closer to the radiation source for rapid curing. This avoids the situation where the solvent inside the paint film rapidly vaporizes due to the close distance between the automotive parts and the radiation source.

[0015] 2. The present invention adjusts the painting angle of automotive parts by adjusting the setting of the adjustment mechanism. When the support frame moves, the gear rotates and drives the sliding plate to move. The movement of the sliding plate drives the placement plate connected to the support seat to rotate, thereby accelerating the painting efficiency. At this time, the initially cured paint will not flow, avoiding the phenomenon of dripping during the painting process of automotive parts, which would lead to obvious orange peel, pinholes or cracks in the cured paint film. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the adjustment mechanism of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the support column of the present invention; Figure 4 This is a schematic diagram showing the positional relationship between the support base and the limiting plate of the present invention.

[0017] In the diagram: 1. Main body of the paint baking box; 101. Drying trough; 102. Support column; 103. Support ring; 104. Adjusting plate; 105. Support frame; 106. Support plate; 107. Placement plate; 2. Adjustment mechanism; 201. No. 1 limiting groove; 202. Cross groove; 203. Cross block; 204. Electric telescopic rod; 205. Annular groove; 206. Spring; 207. Limiting column; 3. Adjustment mechanism; 301. Fixing plate; 302. Toothed plate; 303. Rotating rod; 304. Gear; 305. No. 2 limiting groove; 306. Sliding plate; 307. Threaded rod; 308. Fixing rod; 309. Support base; 310. Limiting plate; 4. Dryer; 401. Box door. Detailed Implementation

[0018] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Example 1 Because the proximity of automotive parts to the radiation source causes rapid vaporization of the solvent inside the paint film, a solution is proposed, referring to... Figures 1-4 This embodiment proposes a paint baking device for automotive parts, including a paint baking box body 1 and a support frame 105 for supporting automotive parts. The paint baking box body 1 has a drying trough 101, and a support column 102 is rotatably mounted on the drying trough 101. A motor for driving the support column 102 to rotate is fixedly mounted on the paint baking box body 1. The output end of the motor is fixedly connected to the support column 102. Starting the motor drives the support column 102 to rotate. Two sets of support rings 103 are slidably mounted on the support column 102. Each set of support rings 103 has four sets of adjusting plates 104 rotatably mounted on each set of supporting plates 104. The support frame 105 is rotatably mounted on the adjusting plates 104, and supports… The frame 105 is rotatably connected to two sets of adjusting plates 104. When the adjusting plate 104 pushes the support frame 105 to move, the adjusting plate 104 rotates with the support frame 105 and the support ring 103. Two sets of supporting plates 106 are fixedly installed on the support frame 105. Each set of supporting plates 106 is rotatably installed with a placement plate 107 for placing automotive parts that need to be painted. A U-shaped baffle is fixedly installed on the placement plate 107 to prevent the position of the automotive parts from changing when the placement plate 107 rotates. Multiple sets of dryers 4 are fixedly installed on the paint baking box body 1, which can perform paint baking treatment on the surface of automotive parts. Two sets of box doors 401 are rotatably installed on the paint baking box body 1.

[0020] An adjustment mechanism 3 for adjusting the position of the placement plate 107 is installed on the support column 102. An adjustment mechanism 3 for adjusting the angle of the placement plate 107 is also installed on the support column 102. The adjustment mechanism 2 causes the four sets of support frames 105 on the support column 102 to move the placement plate 107 simultaneously, while also causing the adjustment mechanism 3 to rotate, so that the placement plate 107 and the support plate 106 rotate. The rotation of the placement plate 107 can adjust the angle of the automotive parts on the placement plate 107.

[0021] The adjustment mechanism 2 includes two sets of first-position limiting grooves 201 formed on the support column 102, and the support ring 103 is slidably mounted on the first-position limiting grooves 201. The support column 102 has two sets of cross grooves 202 communicating with the first-position limiting grooves 201. Each set of cross grooves 202 has a cross block 203 slidably mounted on it and fixedly connected to the support ring 103. The cross grooves 202 make the movement of the support ring 103 driven by the cross block 203 more stable. The adjustment mechanism 2 also includes two sets of electric telescopic rods 204 fixedly mounted on the support column 102. The two sets of electric telescopic rods 204 are controlled by the same switch. The electric telescopic rod 204 is fixedly connected to the cross block 203. When both sets of electric telescopic rods 204 are started synchronously, they can drive the two sets of cross blocks 203 to move synchronously. The support column 102 has two sets of annular grooves 205 communicating with the first limiting groove 201. The adjustment mechanism 2 also includes two sets of springs 206 sleeved on the support column 102 and located in the annular grooves 205 to prevent the support ring 103 from shaking or making abnormal noise during movement. When the support ring 103 moves on the first limiting groove 201, it compresses the springs 206 and presses them into the annular grooves 205. Eight sets of limiting posts 207 are fixedly installed and slidably connected to the support frame 105 to support the support frame 105 and make its movement more stable. Before the paint baking box is started, the placement plate 107 is in a horizontal state, and the car parts to be painted can be placed on the placement plate 107 and in contact with the U-shaped plate on it. During painting, the starting motor drives the support posts 102 to rotate slowly. At this time, the car parts are in a horizontal state and far away from the radiation source. When the paint on the car parts is initially cured, two sets of electric telescopic rods 204 are activated simultaneously to drive two sets of cross blocks 203 to move in the cross grooves 202. The movement of the cross block 203 causes the support ring 103 to move, bringing the two sets of limiting rings on the support column 102 closer together. The two sets of limiting rings move synchronously, causing the adjusting plate 104 to move. Under the action of the limiting column 207, the adjusting plate 104 rotates with the support frame 105 and the support ring 103, pushing the support frame 105 to move on the limiting column 207. The movement of the support frame 105 causes the automotive parts on the placement plate 107 to move, bringing the automotive parts closer to the radiation source for rapid curing. This avoids the situation where the solvent inside the paint film rapidly vaporizes due to the close proximity of the automotive parts to the radiation source. Example 2 Because sagging occurs during the painting process of automotive parts, the cured paint film may exhibit noticeable orange peel texture, pinholes, or cracks. To address this issue, refer to... Figures 1-4 The adjusting mechanism 3 includes four sets of fixed plates 301 fixedly mounted on the support column 102. Each set of fixed plates 301 is fixedly mounted with a toothed plate 302 that is slidably connected to the support frame 105. The adjusting mechanism 3 also includes a rotating rod 303 rotatably mounted on the support frame 105. A gear 304 rotatably connected to the support frame 105 is fixedly mounted on the rotating rod 303, and the gear 304 meshes with the toothed plate 302. Each set of support frames 105 is provided with two sets of second-order limit grooves 305. The adjusting mechanism 3 also includes a sliding mounting... A sliding plate 306 is mounted on the second limiting groove 305. A threaded rod 307, threadedly connected to the sliding plate 306, is rotatably mounted on the second limiting groove 305. The threaded rod 307 is fixedly connected to the rotating rod 303 and located at both ends of the rotating rod 303. Two sets of fixed rods 308, slidably connected to the sliding plate 306, are fixedly mounted on the second limiting groove 305, making the movement of the sliding plate 306 more stable. The adjusting mechanism 3 also includes a support seat 309 fixedly mounted on the placement plate 107. The support seat 309 and the support plate are connected through the support plate. 106 contacts the support plate 107 to keep it horizontal. A limiting plate 310, rotatably connected to the sliding plate 306, is slidably mounted on the support base 309, facilitating the rotation of the sliding plate 107 on the support plate 106. When the support frame 105 moves, it moves relative to the gear plate 302, causing the gear 304 to rotate and drive the threaded rod 307 connected to the rotating rod 303 to rotate. The threaded rod 307 rotates within the sliding plate 306, causing the sliding plate 306 to move along the second limiting groove 305. The fixed rod 308 moves upward, and the sliding plate 306 moves, causing the limiting plate 310 to move. As the sliding plate 306 and the limiting plate 310 rotate, the limiting plate 310 moves out of the support base 309 and causes the placement plate 107 connected to the support base 309 to rotate, thereby adjusting the baking angle of the automotive parts and speeding up the baking efficiency. At this time, the initially cured paint will not flow, avoiding the phenomenon of dripping during the baking process of automotive parts, which would cause obvious orange peel, pinholes or cracks in the cured paint film.

[0022] Working principle: After the operator places the painted parts into the equipment, the entire baking process automatically unfolds in a closed environment. Initially, the electric telescopic rod 204 is in the extended state, and the support ring 103 is located at the outermost edge of the first limiting groove 201. This allows the support frame 105 to be pulled away from the radiation source by the adjusting plate 104. At this time, the placement plate 107 remains absolutely horizontal under the support of the support base 309 and the limiting plate 310, and the parts are placed stably on top. After starting the equipment, the dryer 4 begins to work, and the motor drives the support column 102 to rotate slowly, causing the parts to revolve. In the first stage of baking, due to the parts being in a state of... In a horizontal position and far from the heat source, the wet paint flows evenly and gradually dries under gentle heat radiation. At this time, the solvent in the paint film evaporates slowly, which avoids sagging caused by gravity and prevents pinholes and bubbles caused by sudden heating later. When the system detects that the pre-curing time has reached the set threshold, the electric telescopic rod 204 retracts synchronously, pulling the cross block 203 to slide inward along the cross groove 202, causing the support ring 103 to converge in the first limiting groove 201. This action forces the adjusting plate 104 to rotate like the ribs of an umbrella, thereby pushing the support frame 105 to move linearly along the limiting post 207 into the strong radiation area of ​​the drying tank 101. As the support frame 105 moves towards the center, the adjusting mechanism 3 is automatically activated. The fixed toothed plate 302 and the gear 304 moving with the support frame 105 generate relative displacement, forcing the gear 304 to rotate and driving the rotating rod 303 and the threaded rods 307 at both ends to rotate synchronously. The rotating threaded rods 307 drive the sliding plate 306 to move upward along the second limiting groove 305, and finally lift the placement plate 107 through the limiting plate 310, changing it from a horizontal state to an inclined angle. This change in posture not only eliminates the baking dead angle, but also accelerates the curing of the bottom paint by utilizing the upright state, preventing uneven thickness. In the subsequent final curing stage... During the process, the components continue to receive strong radiation at close range while tilted, rapidly completing deep curing. After the paint is baked, the electric telescopic rod 204 extends and resets, the support ring 103 moves outward, the adjusting plate 104 pulls down the support frame 105 back to its original position, and the gear 304 reverses to drive the placement plate 107 to automatically return to horizontal under gravity, waiting for the next loading and unloading. Through this dynamic control logic of "far before near, flat before upright", the paint film is ensured to reach the best hardness, adhesion and weather resistance. The stable heating curve helps to form a dense and smooth paint surface structure. This device successfully solves the technical problems of paint film being broken by steam or wet paint flowing in traditional baking.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paint baking device for automotive parts, comprising a paint baking box body (1) and a support frame (105) for supporting automotive parts, characterized in that, The paint baking box body (1) is provided with a drying trough (101), and a support column (102) is rotatably installed on the drying trough (101). A motor for driving the support column (102) to rotate is fixedly installed on the paint baking box body (1). Two sets of support rings (103) are slidably installed on the support column (102). Four sets of adjustment plates (104) are rotatably installed on each set of support rings (103). A support frame (105) is rotatably installed on the adjustment plate (104), and the support frame (105) is rotatably connected to the two sets of adjustment plates (104). Two sets of support plates (106) are fixedly installed on the support frame (105). A placement plate (107) for placing automotive parts that need to be painted is rotatably installed on each set of support plates (106). An adjustment mechanism (3) for adjusting the position of the placement plate (107) is installed on the support column (102). An adjustment mechanism (3) for adjusting the angle of the placement plate (107) is installed on the support column (102). The adjustment mechanism (2) causes the four sets of support frames (105) on the support column (102) to move the placement plate (107) simultaneously and drive the adjustment mechanism (3) to rotate, so that the placement plate (107) and the support plate (106) rotate.

2. The automotive parts surface painting apparatus according to claim 1, characterized in that, The adjustment mechanism (2) includes two sets of first limiting grooves (201) opened on the support column (102), and the support ring (103) is slidably installed on the first limiting groove (201). The support column (102) is provided with two sets of cross grooves (202) communicating with the first limiting groove (201). Each set of cross grooves (202) is slidably installed with a cross block (203) fixedly connected to the support ring (103).

3. The automotive parts surface painting apparatus according to claim 2, characterized in that, The adjustment mechanism (2) also includes two sets of electric telescopic rods (204) fixedly installed on the support column (102). The movable end of the electric telescopic rod (204) is fixedly connected to the cross block (203). The support column (102) has two sets of annular grooves (205) that communicate with the first limiting groove (201).

4. The automotive parts surface painting apparatus according to claim 3, characterized in that, The adjustment mechanism (2) also includes two sets of springs (206) sleeved on the support column (102) and located on the annular groove (205), and eight sets of limiting columns (207) that are slidably connected to the support frame (105) are fixedly installed on the support column (102).

5. The automotive parts surface painting apparatus according to claim 4, characterized in that, The adjustment mechanism (3) includes four sets of fixed plates (301) fixedly installed on the support column (102), and each set of fixed plates (301) is fixedly installed with a toothed plate (302) that is slidably connected to the support frame (105).

6. The automotive parts surface painting apparatus according to claim 1, characterized in that, The adjustment mechanism (3) further includes a rotating rod (303) rotatably mounted on the support frame (105). A gear (304) rotatably connected to the support frame (105) is fixedly mounted on the rotating rod (303), and the gear (304) meshes with the toothed plate (302). Two sets of second-positioning grooves (305) are provided on each set of support frames (105).

7. The automotive parts surface painting apparatus according to claim 6, characterized in that, The adjustment mechanism (3) further includes a sliding plate (306) slidably mounted on the second limiting groove (305). A threaded rod (307) threadedly connected to the sliding plate (306) is rotatably mounted on the second limiting groove (305). The threaded rod (307) is fixedly connected to the rotating rod (303) and located at both ends of the rotating rod (303). Two sets of fixed rods (308) slidably connected to the sliding plate (306) are fixedly mounted on the second limiting groove (305).

8. The automotive parts surface painting apparatus according to claim 7, characterized in that, The adjustment mechanism (3) further includes a support base (309) fixedly installed on the placement plate (107), and a limiting plate (310) rotatably connected to the sliding plate (306) is slidably installed on the support base (309).

9. The automotive parts surface painting apparatus according to claim 1, characterized in that, Multiple sets of dryers (4) are fixedly installed on the main body (1) of the paint baking box, and two sets of box doors (401) are rotatably installed on the main body (1) of the paint baking box.

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