Powder coating heating and drying equipment

Abstract

The utility model relates to the technical field of coating drying, and discloses powder coating heating and drying equipment which comprises a support, an air duct with two open ends is arranged on the support, a hot air device is arranged at one end of the air duct, a bracket which is detachably connected with the air outlet end of the hot air device is arranged in the air duct, and the air outlet end of the hot air device is connected with the support. A plurality of trays which are vertically distributed at equal intervals are placed in the bracket, the trays are used for containing coating raw materials, the spraying assembly, the hot air device and the multiple layers of trays are arranged on the support, hot air can be evenly blown to the coating raw materials on the trays, it is guaranteed that the coating raw materials are evenly heated in the drying process, and the drying efficiency is improved. The drying efficiency and quality are improved, the bracket and the tray are designed to be detachable and convenient to clean and replace, the weight of the tray and the weight of the coating raw materials can be accurately controlled through the arrangement of the connecting piece and the weighing device, and it is ensured that the problem of uneven drying caused by uneven weight cannot occur in the drying process.

Description

Technical Field

[0001] The utility model relates to the technical field of paint drying, in particular to a powder paint heating and drying device. Background Technique

[0002] Paint refers to a class of liquid or solid materials that can form a film on the surface of an object under certain conditions to play a role in protection, decoration or other special functions (insulation, rust prevention, mildew prevention, heat resistance, etc.). Paint belongs to organic chemical engineering polymer materials, and the formed paint film belongs to the type of polymer compounds. According to the modern classification of chemical industrial products, paint includes liquid paint and powder paint. Powder paint is a solid granular paint made from raw materials such as resin, pigment and additives, and forms a paint film through electrostatic adsorption and baking curing. Liquid paint is a liquid paint mixed from raw materials such as resin, diluent and pigment, and forms a paint film through construction methods such as brushing and spraying and drying and curing in the air. Modern paint is gradually becoming a class of multifunctional engineering materials and is an important industry in the chemical industry.

[0003] The preparation process of powder paint includes heating and drying. By heating, the solution in the paint raw materials is evaporated, so that the paint raw materials are dehydrated and caked. However, the existing heating devices cannot handle a large amount of powder paint, which not only causes uneven drying of the coating, but also leads to high energy consumption and operating costs. Therefore, a powder paint heating and drying device is proposed to solve the above-mentioned problems. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a powder paint heating and drying device, which includes a bracket. A wind duct with both ends open is arranged on the bracket. One end of the wind duct is provided with a hot air device. A bracket detachably connected to the air outlet end of the hot air device is arranged in the wind duct, and a plurality of trays vertically and equidistantly distributed are placed in the bracket. The trays are used for holding paint raw materials. A spraying assembly is arranged on the bracket, which is used for evenly distributing the paint raw materials on the surface of the trays.

[0005] Further, the wind duct includes an air inlet pipe fixedly installed on the bracket. One end of the air inlet pipe is provided with a hot air device, and the other end is flange-connected to a heating pipe. The end of the heating pipe away from the air inlet pipe is flange-connected to an air outlet pipe.

[0006] Further, the hot air device includes a fan. The fan is fixedly connected to the end of the air inlet pipe away from the heating pipe, and a serpentine pipe is arranged in the air inlet pipe at the air outlet end of the fan. A plurality of heating sheets are arranged on the serpentine pipe at equal intervals.

[0007] Further, it includes a connecting member for limiting the tray. The connecting member includes a connecting arm located above the air duct. Threaded rods are slidably connected to both ends of the connecting arm. Two nuts are threadedly connected to the threaded rods and are respectively located on the upper and lower sides of the connecting arm. One end of each of the two threaded rods is welded to a connecting shaft that penetrates and extends to the inside of the air duct. A hook for hanging the bracket is welded to one end of the connecting shaft.

[0008] Further, a weighing device is provided on the air duct, and the middle of the connecting arm is in contact with the weighing end of the weighing device.

[0009] Further, the spraying assembly includes a load-bearing beam disposed on one side of the air duct. An electric slide rail is provided below the load-bearing beam, and a paint spraying gun for spraying paint raw materials is provided on the moving end of the electric slide rail. A guide rod is provided on one side of the load-bearing beam, and a delivery pipe is coiled around the guide rod. One end of the delivery pipe is communicated with the paint spraying gun, and the other end is communicated with a storage tank storing paint raw materials.

[0010] Further, a limiting frame for fixing the tray is provided on the bracket.

[0011] Further, a sealing door panel is hinged to one side surface of the air duct through a hinge, and the position of the sealing door panel is opposite to that of the bracket.

[0012] The beneficial effects of the present utility model are as follows: By setting the hot air device and the multi-layer trays, the hot air can evenly blow on the paint raw materials on each tray, ensuring that the paint raw materials are evenly heated during the drying process, thereby improving the drying efficiency and quality. The bracket and the tray are designed to be detachable, which is convenient for cleaning and replacement, and at the same time increases the flexibility of the equipment. By setting the connecting member and the weighing device, the weights of the tray and the paint raw materials can be accurately controlled to ensure that there will be no problem of uneven drying caused by uneven weight during the drying process. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the whole of the present utility model;

[0014] Figure 2 It is a connection schematic diagram of the air inlet pipe, the hot air assembly and the spraying assembly of the present utility model;

[0015] Figure 3 It is a connection schematic diagram of the hot air pipe, the connecting member and the bracket of the present utility model;

[0016] Figure 4 For the present utility model Figure 3 The enlarged schematic diagram at position A.

[0017] Among them, 1. Bracket; 2. Air duct; 21. Air inlet pipe; 22. Heating pipe; 23. Air outlet pipe; 3. Hot air device; 31. Fan; 32. Serpentine pipe; 33. Heating sheet; 4. Bracket; 5. Tray; 6. Spraying assembly; 61. Load-bearing beam; 62. Electric slide rail; 63. Spray gun; 64. Guide rod; 65. Delivery pipe; 7. Connector; 71. Connecting arm; 72. Threaded rod; 73. Nut; 74. Connecting shaft; 75. Hook; 8. Weighing device; 9. Limit frame; 10. Sealing door panel. Detailed implementation manners

[0018] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the embodiment, by Figures 1-4Provided is a powder coating heating and drying device, including a bracket 1. A wind duct 2 with both ends open is arranged on the bracket 1. One end of the wind duct 2 is provided with a hot air device 3. A bracket 4 detachably connected to the air outlet end of the hot air device 3 is arranged in the wind duct 2, and a plurality of trays 5 vertically and equidistantly distributed are placed in the bracket 4. The trays 5 are used to hold coating raw materials. A spraying assembly 6 is arranged on the bracket 1, which is used to evenly distribute the coating raw materials on the surface of the trays 5. First, the spraying assembly 6 is used to spray the coating raw materials at various positions on the trays 5 to ensure the uniformity of the coating and the consistency of the thickness. Subsequently, the trays 5 are sequentially placed on the bracket 4, and the hot air device 3 is turned on. The high-temperature gas generated by the hot air device 3 flows through the wind duct 2 and directly blows on the coating raw materials on the trays 5. Since the trays 5 are vertically and equidistantly distributed in the wind duct 2, the hot air can evenly cover each layer of coating raw materials, promoting the rapid evaporation of the solvent or moisture in the coating and realizing the drying and agglomeration of the coating.

[0022] Referring to Figures 1-4 , wherein, the wind duct 2 includes an air inlet pipe 21 fixedly installed on the bracket 1. One end of the air inlet pipe 21 is provided with the hot air device 3, and the other end is flange-connected to a heating pipe 22. The end of the heating pipe 22 far from the air inlet pipe 21 is flange-connected to an air outlet pipe 23;

[0023] Through the above structural arrangement, the air inlet pipe 21, the heating pipe 22 and the air outlet pipe 23 are all made of double-layer metal plates, so they have heat insulation properties themselves. The hot air generated by the hot air device 3 flows from the air inlet pipe 21 into the heating pipe 22 and directly blows on the coating raw materials held on the trays 5. The hot air is in direct contact with the coating raw materials, transferring heat to the coating and enabling the rapid evaporation of the solvent or moisture therein, thereby realizing the heating and drying of the coating.

[0024] Referring to Figures 1-4 , wherein, the hot air device 3 includes a fan 31. The fan 31 is fixedly connected to the end of the air inlet pipe 21 far from the heating pipe 22, and a serpentine pipe 32 is arranged in the air inlet pipe 21 at the air outlet end of the fan 31. A plurality of heating sheets 33 are arranged on the serpentine pipe 32 at equal intervals;

[0025] Through the above structural arrangement, after the fan 31 is started, it generates suction, sucking external air into the air inlet pipe 21. The sucked air is pushed by the fan 31 and passes through the serpentine pipe 32. In this process, the air is in full contact with the heating sheets 33 on the serpentine pipe 32, absorbs heat and gradually warms up. The rotation speed of the fan 31 and the heating power of the heating sheets 33 can be adjusted according to actual needs to control the temperature and air volume of the hot air and meet the different process requirements for drying the coating raw materials.

[0026] Referring to Figures 1-4, wherein, it includes a connecting member 7 for limiting the tray 5. The connecting member 7 includes a connecting arm 71. The connecting arm 71 is located above the air duct 2. Both ends of the connecting arm 71 are slidably connected with threaded rods 72. Two nuts 73 are respectively threaded on the threaded rods 72 and located on the upper and lower sides of the connecting arm 71. One end of each of the two threaded rods 72 is welded with a connecting shaft 74 that penetrates and extends to the inner side of the air duct 2. One end of the connecting shaft 74 is welded with a hook 75 for hanging the bracket 4;

[0027] With the above structural arrangement, in the initial installation stage, first fix the connecting arm 71 at an appropriate position above the air duct 2, then pass the threaded rods 72 through the sliding holes of the connecting arm 71, and adjust their up and down positions as needed. By rotating the nuts 73 on the upper and lower sides, the threaded rods 72 can be fixed at the required height. When the tray 5 is placed on the bracket 4 and filled with coating raw materials, the connecting member 7 firmly hangs the bracket 4 and the tray 5 in the air duct 2 through the hook 75 and the connecting shaft 74. At this time, the combined structure of the connecting arm 71, the threaded rods 72 and the nuts 73 plays a limiting role to prevent the tray 5 from shaking or falling off due to wind force or other factors during the drying process.

[0028] Refer to Figures 1-4 , wherein, a weighing device 8 is arranged on the air duct 2, and the middle part of the connecting arm 71 is in contact with the weighing end of the weighing device 8;

[0029] With the above structural arrangement, the weighing device 8 can measure and display the weight change of the part in contact with it in real time, and is used to monitor the weight of the tray 5 and the coating raw materials on it, ensuring that the weight of each tray 5 and the coating raw materials on it is the same, and ensuring the uniformity of drying.

[0030] Refer to Figures 1-4 , wherein, the spraying assembly 6 includes a load-bearing beam 61. The load-bearing beam 61 is arranged on one side of the air duct 2. An electric slide rail 62 is arranged below the load-bearing beam 61, and a spray gun 63 for spraying coating raw materials is arranged on the moving end of the electric slide rail 62. A guide rod 64 is arranged on one side of the load-bearing beam 61, and a delivery pipe 65 is coiled around the guide rod 64. One end of the delivery pipe 65 is communicated with the spray gun 63, and the other end is communicated with a storage tank storing coating raw materials. A limiting frame 9 for fixing the tray 5 is arranged on the bracket 1;

[0031] With the above structural arrangement, place the workpiece or material to be sprayed on the tray 5 and fix it through the limiting frame 9. As the electric slide rail 62 moves, the spray gun 63 sprays accurately on the tray 5, and the spraying speed and spraying amount can be adjusted as needed to achieve the expected spraying effect.

[0032] Refer to Figures 1-4, wherein, a sealing door panel 10 is hinged to one side surface of the air duct 2 through a hinge, and the position of the sealing door panel 10 is arranged opposite to that of the bracket 4;

[0033] With the above structural arrangement, when it is necessary to place or remove the coating on the bracket 4 in the air duct 2, the operator can manually push the sealing door panel 10 to rotate around the hinge, so as to open the opening of the air duct 2.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder coating heating and drying device, comprising a bracket (1), characterized in that: The support (1) is provided with an air duct (2) with both ends being open, a hot air device (3) is provided at one end of the air duct (2), a bracket (4) detachably connected to the air outlet end of the hot air device (3) is provided in the air duct (2), and a plurality of trays (5) equidistantly distributed vertically are placed in the bracket (4), the trays (5) are used to hold paint raw materials, and the support (1) is provided with a spraying assembly (6) for evenly distributing the paint raw materials on the surface of the tray (5).

2. The powder coating heating and drying device according to claim 1, characterized in that: The air duct (2) comprises an air inlet pipe (21) fixedly mounted on a bracket (1); a hot air device (3) is provided at one end of the air inlet pipe (21); a heating pipe (22) is flange-connected at the other end; and an air outlet pipe (23) is flange-connected at one end of the heating pipe (22) away from the air inlet pipe (21).

3. The powder coating heating and drying device according to claim 2, characterized in that: The hot air device (3) comprises a fan (31), the fan (31) being fixedly connected to the end of the air inlet pipe (21) away from the heating pipe (22), and a serpentine pipe (32) located at the air outlet end of the fan (31) is arranged in the air inlet pipe (21), and a plurality of heating plates (33) distributed at equal distances are arranged on the serpentine pipe (32).

4. The powder coating heating and drying device according to claim 1, characterized in that: The invention comprises a connecting member (7) for limiting the position of the tray (5), wherein the connecting member (7) comprises a connecting arm (71), the connecting arm (71) is located above the air duct (2), both ends of the connecting arm (71) are slidably connected with a threaded rod (72), the threaded rod (72) is threadedly connected with two nuts (73) respectively located on the upper and lower sides of the connecting arm (71), one end of the two threaded rods (72) is welded with a connecting shaft (74) having one end penetrating and extending to the inside of the air duct (2), and one end of the connecting shaft (74) is welded with a hook (75) for hanging the bracket (4).

5. The powder coating heating and drying device according to claim 4, characterized in that: A weighing device (8) is provided on the air duct (2), and the middle portion of the connecting arm (71) is in contact with a weighing end of the weighing device (8).

6. The powder coating heating and drying device according to claim 1, characterized in that: The spraying assembly (6) comprises a load-bearing beam (61), which is arranged on one side of the air duct (2); an electric slide rail (62) is arranged below the load-bearing beam (61), and a spray gun (63) for spraying paint raw materials is arranged at the movable end of the electric slide rail (62); a guide rod (64) is arranged on one side of the load-bearing beam (61), and a conveying pipe (65) is coiled on the guide rod (64); one end of the conveying pipe (65) is connected to the spray gun (63), and the other end is connected to a storage tank storing paint raw materials.

7. The powder coating heating and drying device according to claim 1, characterized in that: The support (1) is provided with a limiting frame (9) for fixing the tray (5).

8. The powder coating heating and drying device according to claim 1, characterized in that: A sealing door panel (10) is hingedly connected to one side surface of the air duct (2) via a hinge, and the sealing door panel (10) is arranged opposite to the bracket (4).

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