A coating drying apparatus

Abstract

The utility model provides a kind of coating drying device, it includes shell, exhaust component, material passage and air guide part, the exhaust component includes several air warehouses being oppositely arranged and fixedly installed in the shell and several insulating boards being installed in the air warehouse, the insulating board is used to make the air warehouse inside gradually increase several air passages to form path outward, the material passage is located between the two opposite air warehouses close end and is used to pass through material matrix, the air guide part is located on the air warehouse and is used to guide hot air into several air passages evenly.The utility model reduces part of hot air flow rate by using the air warehouse that is divided into air passage with gradually increasing travel path, which solves the technical problem of edge warping caused by the edge coating of material matrix being easily dried in the existing drying device, thereby ensuring the overall drying effect.

Description

Technical Field

[0001] This utility model relates to the technical field of coating process drying equipment, and in particular to a coating drying device. Background Technology

[0002] Coating drying is a crucial step in the coating process, directly affecting the uniformity, adhesion, surface morphology, and final product performance of the coating. Poor drying can lead to defects such as coating cracking, bubbling, orange peel, and edge warping. Coating drying is a process of curing the wet coating through heat and mass transfer, mainly including an initial constant-rate drying stage, a mid-term decreasing-rate stage, and a final residue removal stage.

[0003] Currently used coating drying technologies generally include hot air convection drying, infrared radiation drying, vacuum drying, and microwave drying. Among them, hot air convection drying requires simple equipment and has low cost. It can adapt to coatings of different shapes and materials, and is especially suitable for coating objects with complex structures. It can easily meet the needs of large-scale production, so it has advantages such as adaptability, economy, and environmental protection.

[0004] However, in actual drying operations, for some material substrates with large shrinkage rates, hot air convection drying can easily cause edge effects in the coating. That is, because the edges of the coating are easily dried, problems such as warping of the substrate edges may occur, resulting in finished products that do not meet production standards and thus affecting the operation results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a coating and drying device that solves the problem of edge warping of material substrates during hot air convection drying.

[0006] According to an embodiment of the present invention, a coating and drying device includes a housing, an exhaust component, a material conveying channel, and an air guide component. The exhaust component includes several air chambers arranged opposite to each other and fixedly installed inside the housing, and several baffles installed inside the air chambers. The baffles are used to form several air channels with gradually increasing paths from the inside of the air chambers outward. The material conveying channel is located between the near ends of two opposite air chambers and is used to pass through the material matrix. The air guide component is located on the air chambers and is used to uniformly introduce hot air into the several air channels.

[0007] In the above embodiment, several pairs of opposing air chambers are provided, and several baffles are set in the air chambers. The baffles can separate the internal space of the air chambers and form air channels with gradually increasing paths. Then, hot air is introduced into the air chambers through the air guide and is evenly distributed into each air channel. During operation, the material matrix passes through the material passage between the two opposing air chambers. The hot air travels in the air channels with gradually increasing paths and contacts the matrix material. The hot air flow rate of the longer travel path is slower than that of the shorter travel path, so that the solvent drying rate in the middle of the matrix material is higher than that at the edge, thereby reducing the problem of warping caused by the edge of the material matrix drying first.

[0008] In some embodiments, the isolation plate is arc-shaped, and a plurality of the isolation plates are stacked and installed in the air chamber, with the same spacing between any two adjacent isolation plates.

[0009] In some embodiments, the exhaust component further includes a plurality of partition plates evenly distributed between two adjacent partition plates.

[0010] In some embodiments, the ends of several insulating plates in the same group are flat and have the same air guide frame, and several air guide vanes are provided in the air guide frame.

[0011] In some embodiments, the air guide includes an air storage chamber extending into the air chamber and a connecting pipe for connecting the air storage chamber to an external hot air blower. The inner wall of the air storage chamber is provided with a plurality of air holes corresponding to the air passage, and an air pressure component is provided in the air holes.

[0012] In some embodiments, the pneumatic component includes a fixed sleeve fixedly installed inside the air hole and a baffle plate disposed at one end of the fixed sleeve away from the air hole. A slide rod fixedly connected to the middle of one side of the baffle plate is disposed inside the fixed sleeve. A support rod slidably connected to the outside of the slide rod is fixedly installed inside the fixed sleeve. A spring sleeved on the outside of the slide rod is disposed between one side of the support rod and the baffle plate.

[0013] In some embodiments, a sealing ring is provided on the side wall of the baffle and the fixed sleeve.

[0014] Compared with the prior art, this utility model has the following beneficial effects: by adopting the method of dividing the air chamber into air channels with gradually increasing travel paths to reduce part of the hot air flow rate, it solves the technical problem of edge warping caused by the easy drying of the coating at the edge of the material substrate in the existing drying device, thereby ensuring the overall drying effect. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Internal structure diagram;

[0017] Figure 3 for Figure 2 A cross-sectional view of the central gas compartment;

[0018] Figure 4 for Figure 3 Enlarged structural diagram of section A in the middle;

[0019] Figure 5 for Figure 3 A schematic diagram of the left-side view structure;

[0020] Figure 6 for Figure 3 A schematic diagram of the pneumatic components in the diagram;

[0021] Figure 7 for Figure 6 A side sectional view of the structure.

[0022] In the above figures: 100, shell; 200, exhaust component; 210, air chamber; 220, baffle plate; 230, air duct; 240, partition plate; 250, air guide frame; 260, air guide vane; 300, material passage; 400, air guide component; 410, air storage chamber; 420, connecting pipe; 430, air hole; 440, pneumatic component; 441, fixing sleeve; 442, baffle plate; 443, slide rod; 444, support rod; 445, spring; 500, sealing ring. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In an exemplary implementation, such as Figures 1-7As shown, this embodiment provides a coating and drying device, including a housing 100, an exhaust component 200, a material conveying channel 300, and an air guide component 400. The exhaust component 200 includes a plurality of air chambers 210 arranged opposite to each other and fixedly installed in the housing 100, and a plurality of baffle plates 220 installed in the air chambers 210. The baffle plates 220 are used to form a plurality of air channels 230 with gradually increasing paths from the inside of the air chambers 210 outward. The material conveying channel 300 is located between the near ends of two opposite air chambers 210 and is used to pass through the material matrix. The air guide component 400 is located on the air chambers 210 and is used to uniformly introduce hot air into the plurality of air channels 230.

[0026] In this embodiment, several pairs of opposing air chambers 210 are provided, and several baffles 220 are provided inside the air chambers 210. The baffles 220 can separate the space inside the air chambers 210 and form air channels 230 with gradually increasing paths. Then, hot air is introduced into the air chambers 210 through the air guide 400 and evenly enters each air channel 230. During operation, the material matrix passes through the material passage 300 between the two opposing air chambers 210. The hot air travels in the air channels 230 with gradually increasing paths and contacts the matrix material. The hot air flow rate of the longer travel path is slower than that of the shorter travel path, so that the solvent drying rate in the middle of the matrix material is higher than that at the edge, thereby reducing the problem of warping caused by the edge of the material matrix drying first.

[0027] In one embodiment, please refer to Figures 2-4 The isolation plate 220 is arc-shaped, and several isolation plates 220 are stacked and installed in the air chamber 210, with the same spacing between any two adjacent isolation plates 220.

[0028] In this embodiment, the insulating plate 220 divides the interior of the air chamber 210 into several air channels 230 with different diameters. The larger the diameter, the longer the path through which the hot air flows. Compared to hot air with a short path, the longer the path, the greater the temperature drop and the lower the flow rate.

[0029] In one embodiment, please refer to Figures 3-4 The exhaust component 200 also includes a number of partition plates 240 evenly distributed between two adjacent partition plates 220.

[0030] In this embodiment, the separator 240 vertically separates the air passage 230 to ensure the stability of the hot airflow in the air passage 230.

[0031] In one embodiment, please refer to Figures 2-4 The ends of several isolation plates 220 in the same group are flat and are provided with the same air guide frame 250, and several air guide plates 260 are provided inside the air guide frame 250.

[0032] In this embodiment, the air guide vanes 260 inside the air guide frame 250 are tilted at different angles to control the direction of the hot airflow.

[0033] In one embodiment, please refer to Figures 1-7 The air guide 400 includes an air storage chamber 410 extending into the air chamber 210 and a connecting pipe 420 for connecting the air storage chamber 410 to an external hot air blower. The inner wall of the air storage chamber 410 is provided with a plurality of air holes 430 corresponding to the air passage 230. An air pressure component 440 is provided in the air hole 430. The air pressure component 440 includes a fixing sleeve 441 fixedly installed inside the air hole 430 and a baffle 442 provided at the end of the fixing sleeve 441 away from the air hole 430. A slide rod 443 is fixedly connected to the middle of one side of the baffle 442 inside the fixing sleeve 441. A support rod 444 is fixedly installed inside the fixing sleeve 441 and slidably connected to the outside of the slide rod 443. A spring 445 is provided between one side of the support rod 444 and the baffle 442 and is sleeved on the outside of the slide rod 443. A sealing ring 500 is provided on the side wall of the baffle 442 close to the fixing sleeve 441.

[0034] In this embodiment, the hot air flow from the hot air blower is introduced into the air storage chamber 410 through the connecting pipe 420. At this time, the air vent 440 of the air storage chamber 410 is temporarily closed under the action of the baffle 442 and the fixing sleeve 441. At this time, the air storage chamber 410 is equivalent to a sealed container. When the air pressure inside the air storage chamber 410 is greater than the restoring force of the spring 445, the baffle 442 is pushed open by the air pressure and drives the slide rod 443 to slide in the support rod 444. At the same time, the spring 445 is squeezed.

[0035] By using the baffle 442 in conjunction with the fixing sleeve 441 to seal the air storage chamber 410, hot air can simultaneously enter different air passages 230.

[0036] Among them, the sealing ring 500 can increase the sealing performance of the baffle 442.

[0037] To better understand this utility model, the following is combined with... Figures 1 to 7The technical solution of this utility model is described in detail as follows: In use, the material matrix passes through the material passage 300 between the two opposing air chambers 210. The connecting pipe 420 guides the hot air flow from the hot air blower into the air storage chamber 410. At this time, the air storage chamber 410 is equivalent to a sealed container under the action of the baffle 442 and the fixing sleeve 441. When the air pressure inside the air storage chamber 410 is greater than the restoring force of the spring 445, the baffle 442 is pushed open by the air pressure and drives the slide rod 443 to slide in the support rod 444. At the same time, the spring 445 is squeezed, the baffle 442 is disengaged from the fixing sleeve 441, and the hot air flow enters each air channel 230 evenly. The hot air travels in the air channel 230 with the gradually increasing path and contacts the matrix material. The hot air flow rate of the longer travel path is slower than that of the shorter travel path, so that the solvent drying rate in the middle of the matrix material is higher than that at the edge, thereby reducing the problem of warping caused by the edge of the material matrix drying first.

[0038] In summary, this utility model reduces the hot air velocity by dividing the air chamber 210 into air channels 230 with gradually increasing travel paths, which solves the technical problem of edge warping caused by the easy drying of the coating at the edge of the material substrate in existing drying devices, thereby ensuring the overall drying effect.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coating and drying apparatus, characterized in that, include: Casing (100); An exhaust component (200) includes a plurality of air chambers (210) arranged opposite to each other and fixedly installed in the housing (100) and a plurality of baffles (220) installed in the air chambers (210). The baffles (220) are used to form a plurality of air passages (230) with gradually increasing paths from the inside of the air chambers (210) outward. Material passage (300), the material passage (300) is located between the near ends of the two opposite air chambers (210) and is used to pass through the material matrix; An air guide (400) is provided on the air chamber (210) and is used to evenly introduce hot air into a plurality of air ducts (230).

2. The coating and drying apparatus as described in claim 1, characterized in that, The isolation plate (220) is arc-shaped, and several isolation plates (220) are stacked and installed in the air chamber (210), and the spacing between any two adjacent isolation plates (220) is the same.

3. The coating and drying apparatus as described in claim 2, characterized in that, The exhaust unit (200) also includes a plurality of partition plates (240) evenly distributed between two adjacent partition plates (220).

4. The coating and drying apparatus as described in claim 2, characterized in that, The ends of several isolation plates (220) in the same group are flat and are provided with the same air guide frame (250), and several air guide plates (260) are provided in the air guide frame (250).

5. The coating and drying apparatus as described in claim 2, characterized in that, The air guide (400) includes an air storage chamber (410) extending into the air chamber (210) and a connecting pipe (420) for connecting the air storage chamber (410) to an external hot air blower. The inner wall of the air storage chamber (410) is provided with a plurality of air holes (430) corresponding to the air passage (230), and the air holes (430) are provided with air pressure components (440).

6. The coating and drying apparatus as described in claim 5, characterized in that, The pneumatic component (440) includes a fixed sleeve (441) fixedly installed inside the air hole (430) and a baffle (442) disposed at one end of the fixed sleeve (441) away from the air hole (430). A slide rod (443) fixedly connected to the middle of one side of the baffle (442) is disposed inside the fixed sleeve (441). A support rod (444) slidably connected to the outside of the slide rod (443) is fixedly installed inside the fixed sleeve (441). A spring (445) sleeved on the outside of the slide rod (443) is provided between one side of the support rod (444) and the baffle (442).

7. The coating and drying apparatus as described in claim 6, characterized in that, A sealing ring (500) is provided on the side wall of the baffle (442) and the fixing sleeve (441).

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