Drying furnace for spraying metal surface

Abstract

The utility model relates to the technical field of metal surface treatment, and discloses a metal surface spraying and drying furnace which comprises a furnace body, a spraying bin and a drying bin are arranged in the furnace body and communicated with each other, a bin door is installed on the front face of the spraying bin, a filtering assembly is arranged at the top end of the furnace body, and the spraying bin is communicated with the drying bin. The filter assembly comprises an exhaust pipe fixed to the top end of the furnace body, a first fan is installed at the top end of the exhaust pipe, a notch is formed in the side face of the exhaust pipe, and an activated carbon containing groove is slidably connected to the inner wall of the notch. According to the metal surface spraying and drying furnace, the filtering assembly is arranged at the top end of the furnace body, meanwhile, air enters through the air inlet in the bottom of the furnace body in the exhaust process, and the mode that air enters from the bottom and exits from the top is adopted; and hot air carrying peculiar smell in the furnace body can completely pass through the filter assembly filled with activated carbon, so that the peculiar smell is thoroughly adsorbed.

Description

Technical Field

[0001] This utility model relates to the field of metal surface treatment technology, specifically a metal surface spraying and drying oven. Background Technology

[0002] Metallic coatings are coatings with a metallic texture. Most require some form of pretreatment of the metal surface to improve the surface condition and enhance the anti-corrosion protection of the metal substrate. In order to allow the coating to solidify quickly, an integrated spraying and drying oven has been proposed to dry the sprayed coating. During the drying process, metallic coatings often have an unpleasant odor. When the metal surface is sprayed and then dried with hot air, the drying oven does not have an odor adsorption function, resulting in a large amount of odor being blown into the air and polluting the air environment.

[0003] An existing patent (publication number: CN220678364U) discloses a metal surface spraying and drying oven, including an oven body. An air inlet pipe is fixedly installed on the upper side wall of the oven body. A blower is fixedly installed inside the air inlet pipe. An electric heating box is fixedly installed on the lower side wall of the air inlet pipe. An electric heating wire is fixedly installed inside the electric heating box. A drying tube is evenly arranged on the lower side wall of the electric heating box. An activated carbon holding tank is slidably installed at the lower end of the oven body.

[0004] While the aforementioned patent, through the combined use of the activated carbon container, handle, cover, and activated carbon layer, facilitates the removal of odors generated during the drying process of painted metal surfaces by directly filtering them through the activated carbon layer, it has certain drawbacks. Relying on the activated carbon layer for air filtration, the activated carbon layer itself has a certain volume and blocking effect. Without external force, the air above the activated carbon layer is difficult to filter through independently, and the air is discharged from the bottom. In actual use, because the internal air is heated by the electric heating wire, hot air accumulates at the top of the furnace, resulting in incomplete adsorption and filtration. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a metal surface spraying and drying oven that has the advantage of sufficient adsorption, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a metal surface spraying and drying oven, comprising an oven body, wherein a spraying chamber and a drying chamber are arranged inside the oven body, the spraying chamber and the drying chamber are connected, a chamber door is installed on the front of the spraying chamber, a filter assembly is arranged at the top of the oven body, the filter assembly includes an exhaust pipe fixed to the top of the oven body, a first fan is installed at the top of the exhaust pipe, a slot is opened on the side of the exhaust pipe, an activated carbon holding tank is slidably connected to the inner wall of the slot, activated carbon is arranged inside the activated carbon holding tank, a drying assembly is arranged at the top of the drying chamber, the drying assembly includes an air inlet pipe fixed to the top of the oven body, a second fan is installed on the inner wall of the air inlet pipe, an electric heating wire is arranged below the second fan, a first baffle is arranged at the bottom end of the air inlet pipe, an air inlet is arranged on the bottom surface of the oven body, and a second baffle is arranged at the corresponding position of the air inlet on the inner bottom wall of the oven body.

[0007] Furthermore, a first electric push rod and a second electric push rod are fixed to the inner wall of the furnace body. The output end of the first electric push rod is connected to the first baffle, and the output end of the second electric push rod is connected to the second baffle.

[0008] The above scheme uses a first electric actuator to move a first baffle, thereby opening and closing the air intake pipe; and a second electric actuator to move a second baffle, thereby opening and closing the air inlet.

[0009] Furthermore, the spraying chamber is equipped with a spraying assembly, which includes a spray nozzle disposed inside the spraying chamber. A liquid storage tank is disposed on the upper surface of the furnace body, and a pump is installed on the upper surface of the furnace body. The input end of the pump is connected to the liquid storage tank through a pipe, and the output end of the pump is connected to the spray nozzle through a pipe.

[0010] The above method uses a pump to drive the paint inside the storage tank to be sprayed out from the nozzle, thus completing the spraying operation.

[0011] Furthermore, the inner wall of the furnace body is equipped with two first horizontal rails, and a longitudinal rail is slidably connected between the two first horizontal rails. A track block is slidably connected to the inner wall of the longitudinal rail. The nozzle is installed on the bottom surface of the track block. An adjusting threaded rod is rotatably connected to the inner wall of the longitudinal rail. An adjusting motor is installed at the end of the longitudinal rail. The adjusting motor is connected to the adjusting threaded rod. The adjusting threaded rod passes through the track block and is threadedly connected to the track block.

[0012] The above scheme allows the nozzle to be moved and adjusted by moving the longitudinal rail and track block.

[0013] Furthermore, a first threaded rod is rotatably connected to the inner wall of the first horizontal rail located on the left side. The first threaded rod passes through the longitudinal rail and is threadedly connected to the longitudinal rail. A first motor is installed at the end of the first horizontal rail located on the left side, and the output end of the first motor is connected to the first threaded rod.

[0014] With the above scheme, the first motor can drive the first threaded rod to rotate.

[0015] Furthermore, two second horizontal rails are installed on the inner wall of the furnace body. A bearing groove is provided above the second horizontal rail, and a fixing block is fixed to the bottom surface of the bearing groove. The fixing block is slidably connected to the second horizontal rail.

[0016] The above scheme uses the movement of the fixed block in the second horizontal rail to drive the movement of the bearing groove.

[0017] Furthermore, a second threaded rod is rotatably connected to the inner wall of the second horizontal rail on the left side. The second threaded rod passes through the fixing block and is threadedly connected to the fixing block. A second motor is installed at the end of the second horizontal rail on the left side, and the output end of the second motor is connected to the second threaded rod.

[0018] The above scheme enables the second motor to drive the second threaded rod to rotate.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] This metal surface spray drying oven uses a filter assembly at the top of the oven body and air intake through the air inlet at the bottom of the oven body during exhaust. By adopting a bottom-in, top-out method, the hot air carrying odors inside the oven body can pass through the filter assembly containing activated carbon during the odor filtration process after drying, thereby achieving complete odor adsorption. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present application;

[0022] Figure 2 This is a diagram showing the internal structure of the overall furnace body in this application;

[0023] Figure 3 This is a sectional view of the overall furnace body side view of this application;

[0024] Figure 4 This is a side view of the first horizontal rail of the entire application.

[0025] In the picture:

[0026] 1. Furnace body; 2. Spraying chamber; 3. Drying chamber;

[0027] 4. Filter assembly; 401. Exhaust pipe; 402. First fan; 403. Activated carbon container;

[0028] 5. Drying assembly; 501. Air inlet pipe; 502. Second fan; 503. Electric heating wire; 504. First baffle; 505. First electric push rod;

[0029] 6. Second baffle; 7. Second electric actuator;

[0030] 8. Spraying assembly; 801. Spray nozzle; 802. Liquid storage tank; 803. Pump; 804. First horizontal rail; 805. Longitudinal rail; 806. Track block; 807. Adjusting threaded rod; 808. Adjusting motor; 809. First threaded rod; 810. First motor; 811. Second horizontal rail; 812. Bearing groove; 813. Second threaded rod; 814. Second motor. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a metal surface spraying and drying oven includes an oven body 1. The oven body 1 has a spraying chamber 2 and a drying chamber 3 inside, which are connected. A door is installed on the front of the spraying chamber 2. A filter assembly 4 is installed at the top of the oven body 1. The filter assembly 4 includes an exhaust pipe 401 fixed to the top of the oven body 1, a first fan 402 installed at the top of the exhaust pipe 401, and a slot on the side of the exhaust pipe 401. An activated carbon holding tank 4 is slidably connected to the inner wall of the slot. 03. Activated carbon is placed inside the activated carbon holding tank 403. A drying component 5 is placed at the top of the drying chamber 3. The drying component 5 includes an air inlet pipe 501 fixed to the top of the furnace body 1. A second fan 502 is installed on the inner wall of the air inlet pipe 501. An electric heating wire 503 is placed below the second fan 502. A first baffle 504 is placed at the bottom of the air inlet pipe 501. An air inlet is placed on the bottom surface of the furnace body 1. A second baffle 6 is placed at the corresponding position of the air inlet on the inner bottom wall of the furnace body 1.

[0033] Please see Figure 2 , Figure 3 and Figure 4The inner wall of the furnace body 1 is fixed with a first electric actuator 505 and a second electric actuator 7. The output end of the first electric actuator 505 is connected to the first baffle 504, and the output end of the second electric actuator 7 is connected to the second baffle 6. The first electric actuator 505 drives the first baffle 504 to move, thereby opening and closing the air inlet pipe 501. The second electric actuator 7 drives the second baffle 6 to move, thereby opening and closing the air inlet. The spraying chamber 2 is equipped with a spraying assembly 8, which includes a nozzle 801 installed inside the spraying chamber 2. The upper surface of the furnace body 1 is equipped with a liquid storage tank 802, and a pump 803 is installed on the upper surface of the furnace body 1. The input end of the pump 803 is connected to the liquid storage tank 802 through a pipe, and the output end of the pump 803 is connected to the nozzle 801 through a pipe. The pump 803 drives the paint inside the liquid storage tank 802 to be sprayed out from the nozzle 801 to complete the spraying operation.

[0034] Please see Figure 2 , Figure 3 and Figure 4 The inner wall of the furnace body 1 is equipped with two first horizontal rails 804, and a longitudinal rail 805 is slidably connected between the two first horizontal rails 804. A track block 806 is slidably connected to the inner wall of the longitudinal rail 805. The nozzle 801 is installed on the bottom surface of the track block 806. An adjusting threaded rod 807 is rotatably connected to the inner wall of the longitudinal rail 805. An adjusting motor 808 is installed at the end of the longitudinal rail 805. The adjusting motor 808 is connected to the adjusting threaded rod 807. The adjusting threaded rod 807 passes through the track block 806 and is threaded to the track block 806. Next, by moving the longitudinal rail 805 and the track block 806, the nozzle 801 can be moved and adjusted. The inner wall of the first horizontal rail 804 on the left side is rotatably connected to the first threaded rod 809. The first threaded rod 809 passes through the longitudinal rail 805 and is threadedly connected to the longitudinal rail 805. The end of the first horizontal rail 804 on the left side is equipped with a first motor 810. The output end of the first motor 810 is connected to the first threaded rod 809. The first motor 810 can drive the first threaded rod 809 to rotate.

[0035] Please see Figure 2 , Figure 3 and Figure 4Two second horizontal rails 811 are installed on the inner wall of the furnace body 1. A bearing groove 812 is provided above the second horizontal rail 811. A fixing block is fixed on the bottom surface of the bearing groove 812. The fixing block is slidably connected to the second horizontal rail 811. The movement of the fixing block in the second horizontal rail 811 drives the bearing groove 812 to move. A second threaded rod 813 is rotatably connected to the inner wall of the second horizontal rail 811 on the left side. The second threaded rod 813 passes through the fixing block and is threadedly connected to the fixing block. A second motor 814 is installed at the end of the second horizontal rail 811 on the left side. The output end of the second motor 814 is connected to the second threaded rod 813. The second motor 814 can drive the second threaded rod 813 to rotate.

[0036] It should be noted that during the drying process, the air inlet at the bottom of the furnace body 1 is closed, and during the filtration and exhaust process, the first baffle 504 at the bottom of the air inlet pipe 501 is closed.

[0037] The working principle of the above embodiment is as follows: After opening the hatch, the object is placed in the carrying groove 812. The object is sprayed by starting the spraying assembly 8. With the cooperation of the first motor 810, the second motor 814 and the adjusting motor 808, the track block 806 moves to drive the nozzle 801 to move. The pump 803 drives the paint to be sprayed out from the nozzle 801 to complete the spraying operation.

[0038] Next, the bearing tank 812 moves the coated object to the drying chamber 3. At this time, the second electric push rod 7 moves the second baffle 6, the air inlet is closed, and the air inlet pipe 501 is opened. The first fan 402 and the second fan 502 are turned on. The first fan 402 draws the air inside the furnace body 1 to the exhaust pipe 401. During this period, the air with odor passes through the activated carbon holding tank 403. The activated carbon inside the activated carbon holding tank 403 adsorbs and filters it. At the same time, the outside air enters the interior of the furnace body 1 through the air inlet pipe 501. The electric heating wire 503 heats the incoming air. The heated air dries the object.

[0039] After drying, residual odorous gas remains inside the furnace body 1. At this time, the first electric push rod 505 moves the first baffle 504, which blocks the air inlet pipe 501. Simultaneously, the second electric push rod 7 moves the second baffle 6, opening the air inlet. The first fan 402 draws the air inside the furnace body 1 to the exhaust pipe 401, and outside air enters from the air inlet at the bottom of the furnace body 1. By adopting a bottom-in, top-out method, the hot air carrying odor inside the furnace body 1 can pass through the filter component 4 containing activated carbon during the odor filtration process after drying, thereby achieving complete adsorption of odor.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal surface spray oven comprising a furnace body (1), characterised in that: The furnace body (1) is equipped with a spraying chamber (2) and a drying chamber (3) inside. The spraying chamber (2) and the drying chamber (3) are connected. A filter assembly (4) is provided at the top of the furnace body (1). The filter assembly (4) includes an exhaust pipe (401) fixed to the top of the furnace body (1). A first fan (402) is installed at the top of the exhaust pipe (401). A slot is opened on the side of the exhaust pipe (401). An activated carbon holding tank (403) is slidably connected to the inner wall of the slot. The activated carbon holding tank (403) is equipped with a filter assembly (402) inside. The drying chamber (3) contains activated carbon and is equipped with a drying assembly (5) at the top. The drying assembly (5) includes an air inlet pipe (501) fixed to the top of the furnace body (1). A second fan (502) is installed on the inner wall of the air inlet pipe (501). An electric heating wire (503) is installed below the second fan (502). A first baffle (504) is installed at the bottom end of the air inlet pipe (501). An air inlet is provided on the bottom surface of the furnace body (1). A second baffle (6) is provided at the corresponding position of the air inlet on the inner bottom wall of the furnace body (1).

2. A metal surface spray oven according to claim 1, wherein: The inner wall of the furnace body (1) is fixed with a first electric push rod (505) and a second electric push rod (7). The output end of the first electric push rod (505) is connected to the first baffle (504), and the output end of the second electric push rod (7) is connected to the second baffle (6).

3. A metal surface spray oven as claimed in claim 1, wherein: The spraying chamber (2) is equipped with a spraying assembly (8), which includes a nozzle (801) installed inside the spraying chamber (2). The upper surface of the furnace body (1) is provided with a liquid storage tank (802), and a pump (803) is installed on the upper surface of the furnace body (1). The input end of the pump (803) is connected to the liquid storage tank (802) through a pipe, and the output end of the pump (803) is connected to the nozzle (801) through a pipe.

4. A metal surface spray oven according to claim 3, wherein: The inner wall of the furnace body (1) is equipped with two first horizontal rails (804), and a longitudinal rail (805) is slidably connected between the two first horizontal rails (804). A track block (806) is slidably connected to the inner wall of the longitudinal rail (805). The nozzle (801) is installed on the bottom surface of the track block (806). An adjusting threaded rod (807) is rotatably connected to the inner wall of the longitudinal rail (805). An adjusting motor (808) is installed at the end of the longitudinal rail (805). The adjusting motor (808) is connected to the adjusting threaded rod (807). The adjusting threaded rod (807) passes through the track block (806) and is threadedly connected to the track block (806).

5. A metal surface spray oven as claimed in claim 4, wherein: The inner wall of the first horizontal rail (804) located on the left side is rotatably connected to a first threaded rod (809). The first threaded rod (809) passes through the longitudinal rail (805) and is threadedly connected to the longitudinal rail (805). A first motor (810) is installed at the end of the first horizontal rail (804) located on the left side. The output end of the first motor (810) is connected to the first threaded rod (809).

6. A metal surface spray oven according to claim 1, wherein: The inner wall of the furnace body (1) is equipped with two second horizontal rails (811). A bearing groove (812) is provided above the second horizontal rail (811). A fixing block is fixed on the bottom surface of the bearing groove (812). The fixing block is slidably connected to the second horizontal rail (811).

7. A metal surface spray oven according to claim 6, wherein: The inner wall of the second horizontal rail (811) located on the left is rotatably connected to a second threaded rod (813). The second threaded rod (813) passes through the fixed block and is threadedly connected to the fixed block. A second motor (814) is installed at the end of the second horizontal rail (811) located on the left. The output end of the second motor (814) is connected to the second threaded rod (813).

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