An automobile exterior plastic part spraying and drying treatment device

Abstract

The utility model relates to the technical field of automobile parts processing, concretely relates to a kind of automobile exterior plastic piece drying treatment device after spraying, including drying cabinet, the rack for piling material for being set in drying cabinet, rack can be moved and be set in drying cabinet, rack includes telescopic support and bearing plate, several bearing plates are horizontally spaced, and the two sides of opposite on bearing plate are symmetrically provided with chute, telescopic support can be slidably set in chute, and telescopic support can adjust the spacing between the two adjacent bearing plates.Adjustable rack of being freely detachable is set in drying cabinet, according to the layer height of drying cabinet or the number of material to be dried, to set multiple bearing plates, bearing plate and telescopic support are separately set, the separation of material is realized by setting telescopic support between the two adjacent bearing plates, and the bearing plate of modular design is used, so that several bearing plates can be randomly replaced upper and lower positions.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a drying device for automotive exterior plastic parts after spraying. Background Technology

[0002] As an important component of the car's appearance, the surface coating treatment of automotive exterior plastic parts (such as bumpers, grilles, and trim strips) directly affects the product's weather resistance, aesthetics, and service life. Post-coating drying is a crucial process for ensuring coating performance. It requires baking at specific temperatures and times to allow the coating to cure and take shape, avoiding defects such as sagging, bubbles, and insufficient adhesion.

[0003] In existing technologies, the drying of automotive exterior plastic parts largely relies on traditional drying ovens: the painted plastic parts are directly stacked on racks inside the drying oven, and the temperature is raised by heating devices (such as electric heating elements and hot air circulation systems) inside the oven to complete the drying process. However, this method has significant drawbacks: because plastic parts are mostly irregularly shaped, they are prone to mutual obstruction when stacked, resulting in some areas not being able to directly contact the hot airflow, creating drying dead zones; at the same time, the gaps between the plastic parts are narrow when stacked, hindering the circulation of hot airflow, resulting in poor temperature uniformity in different areas inside the oven. Parts near the heating source are prone to over-drying, while parts far from the heating source are under-dryed, requiring an extended overall drying time to ensure that all parts meet the standards, which seriously affects drying efficiency.

[0004] Furthermore, traditional drying ovens typically have fixed racks, making it impossible to adjust the spacing according to the size and shape of plastic parts. For large exterior components (such as bumpers), stacking them can easily lead to deformation, while dispersing them wastes internal space and further reduces the throughput per unit time. This drying method, which relies on manual stacking and has poor heat circulation, not only fails to meet the efficiency requirements of large-scale production but may also lead to a decrease in product qualification rate and increased production costs due to unstable drying quality. Therefore, optimizing the structural design of drying equipment, improving the utilization rate of hot airflow and drying uniformity, and avoiding the inefficiency caused by stacking have become urgent technical problems to be solved in this field. Utility Model Content

[0005] To address the aforementioned issues, a drying device for automotive exterior plastic parts after spraying is provided. By incorporating movable racks with adjustable height and spacing, the device solves the problem of low drying efficiency caused by the stacking of materials in traditional drying devices.

[0006] To address the problems of existing technologies, this utility model provides a drying treatment device for automotive exterior plastic parts after spraying, comprising a drying box and a storage rack disposed in the drying box for accumulating materials. The storage rack is movably disposed in the drying box and includes a telescopic bracket and a support plate. A plurality of the support plates are horizontally spaced apart, and symmetrical grooves are provided on opposite sides of the support plates. The telescopic bracket is slidably disposed in the grooves, and adjusting the telescopic bracket can adjust the distance between two adjacent support plates.

[0007] Preferably, the support plate includes a plate frame and a mesh plate, and the top and bottom of the two opposing sides of the plate frame are respectively provided with sliding grooves.

[0008] Preferably, the telescopic bracket includes sliding plates, connecting rods, and telescopic components. The four sliding plates are arranged in pairs and are respectively constrained in the grooves of two adjacent bearing plates and can slide along the length of the grooves. The two connecting rods are cross-hinged, and the ends of the connecting rods are hinged to the sliding plates. The telescopic component is vertically connected to two of the sliding plates, and controlling the extension and retraction of the telescopic component can adjust the spacing between each set of sliding plates.

[0009] Preferably, the telescopic bracket includes a sliding plate, a connecting rod, a support member, and a telescopic member. The sliding plate is hinged to the end of the connecting rod. The two connecting rods are cross-hinged. The support member is vertically connected to two of the sliding plates. The telescopic member is vertically connected to two other sets of sliding plates. Adjusting the telescopic member can adjust the distance between the two sets of sliding plates. The four sliding plates are connected in pairs in the grooves of two adjacent bearing plates.

[0010] Preferably, the telescopic component includes a bidirectional lead screw and a turntable. The two ends of the bidirectional lead screw are respectively connected to two sliding plates arranged vertically. The turntable is fixed in the middle of the bidirectional lead screw. Rotating the turntable can move the two sliding plates closer to or further apart from each other.

[0011] Preferably, the support member includes a support cylinder, a support rod, and a spring. The support cylinder is bolted to a sliding plate, the support rod is bolted to another sliding plate, one end of the support rod is restricted to move up and down in the support cylinder, and the spring is sleeved on the support rod.

[0012] Preferably, the mesh panel is detachably connected to the frame.

[0013] Preferably, the bottom of the shelf is equipped with casters.

[0014] The advantages of this utility model compared to the prior art are:

[0015] Since the size of the materials to be dried is relatively random, adjustable shelves are installed in the drying oven. These shelves can be freely disassembled. Multiple support plates are set according to the height of the drying oven or the quantity of materials to be dried. The support plates and telescopic supports are set separately. By setting telescopic supports between adjacent support plates, the materials can be stacked separately, which can greatly improve the material stacking efficiency of the drying oven, thereby improving the drying efficiency of the drying oven. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the drying box structure of a post-painting drying treatment device for automotive exterior plastic parts, provided in Embodiment 1 of this utility model. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the drying box structure of a post-painting drying treatment device for automotive exterior plastic parts, provided in Embodiment 1 of this utility model. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the connection structure between the drying box and the storage rack of a drying treatment device for automotive exterior plastic parts after spraying, provided in Embodiment 1 of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of a storage rack for a drying treatment device for automotive exterior plastic parts after spraying, provided in Embodiment 1 of this utility model (without a mesh plate).

[0020] Figure 5 This is a schematic diagram of the connection structure between the support plate and the telescopic bracket of a drying treatment device for automotive exterior plastic parts after spraying, provided in Embodiment 1 of this utility model.

[0021] Figure 6 This is a schematic diagram of the connection between the support plate and the telescopic bracket of a drying treatment device for automotive exterior plastic parts after spraying, provided in Embodiment 1 of this utility model.

[0022] Figure 7 This is the structure of the telescopic bracket in Embodiment 2 of the present invention, which is a drying treatment device for automotive exterior plastic parts after spraying.

[0023] Figure 8 This is a schematic diagram of the structure of the support plate in a drying treatment device for automotive exterior plastic parts after spraying, provided in Embodiment 2 of this utility model.

[0024] The components in the diagram are labeled as follows: Drying oven 1, Shelf 2, Telescopic bracket 20, Sliding plate 200, Slider 2000, Connecting rod 201, Telescopic component 202, Two-way lead screw 2020, Turntable 2021, Support component 203, Support cylinder 2030, Support rod 2031, Spring 2032, Bearing plate 21, Plate frame 210, Mesh plate 211, Slide groove 212, Rotating mesh plate 213, Caster wheel 22. Detailed Implementation

[0025] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figure 1-8 As shown, a drying treatment device for automotive exterior plastic parts after spraying includes a drying box 1 and a storage rack 2 set in the drying box 1 for accumulating materials. The storage rack 2 is movably set in the drying box 1 and includes a telescopic bracket 20 and a support plate 21. Several support plates 21 are arranged horizontally at intervals. Sliding grooves 212 are symmetrically arranged on opposite sides of the support plate 21. The telescopic bracket 20 is slidably set in the sliding groove 212. Adjusting the telescopic bracket 20 can adjust the distance between two adjacent support plates 21.

[0028] By placing the painted automotive exterior plastic parts on rack 2, the drying function of drying chamber 1 is used to dry the spaced-out materials. Drying chamber 1 uses heating elements to generate heat and circulates hot air to dry the materials. Figure 1-3 In the drying oven 1 shown, heating elements are distributed on the side walls of the drying oven 1. Air intake and ventilation are achieved by two sets of exhaust fans set on one side. Preferably, one of the exhaust fans is connected to a circulating filtration system (not shown in the figure). By discharging the exhaust gas from the drying oven 1 into the circulating filtration system, and filtering it before it enters the drying oven 1, heat loss can be further reduced, and environmental performance can be improved to a great extent. Since the size of the material to be dried is relatively random, adjustable shelf 2 is set in the drying oven 1. The shelf 2 can be freely disassembled. Multiple support plates 21 are set according to the height of the drying oven 1 or the quantity of material to be dried. The support plates 21 and the telescopic brackets 20 are set separately. By setting the telescopic brackets 20 between two adjacent support plates 21, the material can be stacked separately, which can greatly improve the material stacking efficiency of the drying oven 1, thereby improving the drying efficiency of the drying oven 1.

[0029] It should be noted that, in order to further improve the drying efficiency of the drying chamber 1, a guide plate driven by a motor can be installed inside the drying chamber 1. The guide plate is movable inside the drying chamber 1 and can rotate under the drive of the motor, which can stir the heat inside the drying chamber 1 and make the heat distribution more uniform. The guide plate includes a vertically arranged rotating shaft and a fixed plate evenly distributed on the rotating shaft. The rotation of the fixed plate can stir the airflow inside the drying chamber 1.

[0030] The support plate 21 includes a frame 210 and a mesh plate 211. Slide grooves 212 are respectively provided at the top and bottom of the two opposing edges of the frame 210. Each support plate 21 has slide grooves 212 at the bottom and top of its frame 210. The modular design of the support plates 21 allows for easy replacement of their vertical positions, facilitating the assembly and disassembly of the shelf 2. Materials are placed on the mesh plate 211, allowing the heat in the drying chamber 1 to directly contact the materials to a greater extent, increasing the exposed surface area of ​​the materials in the drying chamber 1 and avoiding drying dead zones caused by direct placement of materials in the drying chamber 1. Preferably, the mesh plate 211 is detachably connected to the frame 210. Preferably, the frame 210 has a frame-like structure, with a shelf provided along its inner edge. The mesh plate 211 can be placed on the shelf, facilitating replacement and maintenance of the mesh plate 211.

[0031] The telescopic bracket 20 includes a sliding plate 200, a connecting rod 201, a support member 203, and a telescopic member 202. The sliding plate 200 is hinged to the end of the connecting rod 201, and the two connecting rods 201 are cross-hinged. The support member 203 vertically connects two of the sliding plates 200, and the telescopic member 202 vertically connects two other sets of sliding plates 200. Adjusting the telescopic member 202 allows adjustment of the distance between the two sets of sliding plates 200. The four sliding plates 200 are connected in pairs to the grooves 212 of adjacent bearing plates 21. Figure 5-6 As shown, the support member 203 can support the two sliding plates 200 so that they respectively contact the upper and lower horizontally arranged bearing plates 21. By controlling the extension and retraction of the telescopic member 202, the rotation between the two connecting rods 201 is driven, so that the distance between the two upper sliding plates 200 and the lower sliding plate 200 changes. The telescopic member 202 can be an electric telescopic rod or other structures that can extend and retract in the vertical direction.

[0032] Furthermore, the telescopic component 202 includes a bidirectional lead screw 2020 and a turntable 2021. The two ends of the bidirectional lead screw 2020 are respectively connected to two sliding plates 200 arranged vertically. The turntable 2021 is fixed to the middle of the bidirectional lead screw 2020. Rotating the turntable 2021 can move the two sliding plates 200 closer together or further apart. Figure 6As shown, rotating the turntable 2021 can cause the two sliding plates 200 connected by the bidirectional lead screw 2020 to move closer or further apart synchronously. The bidirectional lead screw 2020 can both adjust the distance between the two sliding plates 200 and activate the support for the two sliding blocks, as shown. Figure 5 As shown, two sets of telescopic brackets 20 are set on the slide groove 212 of a support plate 21. The support plate 21 can be stacked on top of it. The sliding plate 200 is in contact with the slide groove 212. When the heights of the two telescopic brackets 20 at the same horizontal level are different, the support plate 21 connected to them can be tilted to increase the adaptability of the device.

[0033] The support member 203 includes a support cylinder 2030, a support rod 2031, and a spring 2032. The support cylinder 2030 is bolted to the sliding plate 200, and the support rod 2031 is bolted to another sliding plate 200. One end of the support rod 2031 is restricted to move up and down within the support cylinder 2030, and the spring 2032 is sleeved on the support rod 2031. When the distance between the telescopic members 202 is adjusted to reduce the distance, the spring 2032 in the support member 203 is compressed.

[0034] The bottom of the shelf 2 is equipped with casters 22, such as... Figures 3-6 As shown, by providing limiting holes on the support plate 21, the casters 22 can be detachably connected in the limiting holes, so that the stacked rack 2 can move freely in the drying oven 1.

[0035] Example 2

[0036] Based on Embodiment 1, the structure of the telescopic bracket 20 is modified as follows: Figure 7 The structure shown specifically includes a telescopic bracket 20 comprising a sliding plate 200, a connecting rod 201, and a telescopic component 202. The four sliding plates 200 are arranged in pairs and are respectively constrained by the grooves 212 of two adjacent bearing plates 21 and can slide along the length of the grooves 212. The two connecting rods 201 are cross-hinged, and the ends of the connecting rods 201 are hinged to the sliding plates 200. The telescopic component 202 is vertically connected to two of the sliding plates 200. Controlling the extension and retraction of the telescopic component 202 can adjust the spacing between each group of sliding plates 200. A slider 2000 is provided on the sliding plate 200. The slider 2000 is restricted to move along the length of the slide groove 212 within the slide groove 212. The slider 2000 is interference-fitted with the opening of the slide groove 212. During installation, the slider 2000 is pressed into the slide groove 212. When the telescopic bracket 20 needs to be disassembled, the contact between the sliding plate 200 and the support plate 21 is released by pulling. Furthermore, preferably, the slider 2000 is rotatably connected to the sliding plate 200 (not shown in the figure). The support plate 21 is preferably a split structure, such as... Figure 8As shown, when the heights of the telescopic members 202 at both ends of the support plate 21 are not adjusted uniformly, the support plate 21 is hinged by two sets of rotating mesh plates 213211, allowing the two rotating mesh plates 213211 to rotate relative to each other. It should be noted that, to increase the stability of the shelf 2, the telescopic bracket 20 provided in Embodiment 2 can be used alternately and at intervals. Figure 6 and Figure 8 The support plate 21 structure provided in the middle avoids using all of them. Figure 8 The load-bearing plate 21 shown makes the load-bearing capacity of the shelf 2 weak, and it is prone to collapse.

[0037] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A drying treatment device for automotive exterior plastic parts after spraying, comprising a drying chamber (1) and a storage rack (2) disposed in the drying chamber (1) for accumulating materials, characterized in that, The shelf (2) is movable in the drying oven (1). The shelf (2) includes a telescopic bracket (20) and a support plate (21). Several support plates (21) are arranged horizontally at intervals. Slide grooves (212) are symmetrically arranged on opposite sides of the support plate (21). The telescopic bracket (20) is slidably arranged in the slide groove (212). Adjusting the telescopic bracket (20) can adjust the distance between two adjacent support plates (21).

2. The drying treatment device for automotive exterior plastic parts after spraying according to claim 1, characterized in that, The support plate (21) includes a plate frame (210) and a mesh plate (211), and the top and bottom of the two opposing sides of the plate frame (210) are respectively provided with sliding grooves (212).

3. The drying treatment device for automotive exterior plastic parts after spraying, as described in claim 2, is characterized in that, The telescopic bracket (20) includes a sliding plate (200), a connecting rod (201), and a telescopic component (202). The four sliding plates (200) are arranged in pairs and are respectively restricted to the grooves (212) of two adjacent bearing plates (21) and can slide along the length of the grooves (212). The two connecting rods (201) are cross-hinged, and the ends of the connecting rods (201) are hinged to the sliding plates (200). The telescopic component (202) is vertically connected to two of the sliding plates (200). Controlling the extension and retraction of the telescopic component (202) can adjust the spacing between each set of sliding plates (200).

4. The drying treatment device for automotive exterior plastic parts after spraying, as described in claim 2, is characterized in that, The telescopic bracket (20) includes a sliding plate (200), a connecting rod (201), a support member (203), and a telescopic member (202). The sliding plate (200) is hinged to the end of the connecting rod (201), and the two connecting rods (201) are cross-hinged. The support member (203) is vertically connected to two of the sliding plates (200), and the telescopic member (202) is vertically connected to the other two sets of sliding plates (200). Adjusting the telescopic member (202) can adjust the distance between the two sets of sliding plates (200). The four sliding plates (200) are connected in pairs in the grooves (212) of the two adjacent bearing plates (21).

5. A drying treatment device for automotive exterior plastic parts after spraying, as described in claim 3 or 4, characterized in that, The telescopic component (202) includes a bidirectional lead screw (2020) and a turntable (2021). The two ends of the bidirectional lead screw (2020) are respectively connected to two sliding plates (200) arranged vertically. The turntable (2021) is fixed in the middle of the bidirectional lead screw (2020). Rotating the turntable (2021) can move the two sliding plates (200) closer to or further away from each other.

6. The drying treatment device for automotive exterior plastic parts after spraying according to claim 4, characterized in that, The support member (203) includes a support cylinder (2030), a support rod (2031), and a spring (2032). The support cylinder (2030) is bolted to the sliding plate (200), and the support rod (2031) is bolted to another sliding plate (200). One end of the support rod (2031) is restricted to move up and down in the support cylinder (2030), and the spring (2032) is sleeved on the support rod (2031).

7. The drying treatment device for automotive exterior plastic parts after spraying, as described in claim 2, is characterized in that, The mesh panel (211) is detachably connected to the frame (210).

8. The drying treatment device for automotive exterior plastic parts after spraying according to claim 1, characterized in that, The bottom of the shelf (2) is equipped with casters (22).

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