A paint heat resistance detection oven

Abstract

The utility model relates to the technical field of oven for coating heat resistance detection, especially oven for coating heat resistance detection, including fixed base plate, fixed base plate is provided with connecting mechanism, connecting mechanism contains setting in fixed base plate rear section setting has traction assembly, fixed base plate top is provided with main part assembly, fixed base plate right section is provided with detection assembly. Threaded adjusting rod and slide bar cooperate with the spray head, the spraying height and position can be adjusted flexibly, combined with the movement of the sliding box body, realize uniform coating spraying; the air compressor, the eddy current pipe and the hot air spray head in the main part assembly cooperate with each other, can stable output hot air, accurate simulation high temperature detection environment; the connecting base plate and the threaded rod cooperate with the fixed sliding box body, ensure that each component is stable in position when working; these designs effectively solve the problems of uneven heating of traditional oven test piece, uneven coating spraying and the like, greatly improve the accuracy and reliability of coating heat resistance performance detection result.

Description

Technical Field

[0001] This utility model relates to the technical field of ovens for testing the heat resistance of coatings, and in particular to an oven for testing the heat resistance of coatings. Background Technology

[0002] In modern industrial production and scientific research, coatings are widely used, ranging from everyday consumer goods to high-end equipment. They not only beautify the appearance of objects but, more importantly, play a crucial role in protecting their surfaces. The heat resistance of coatings, as a core indicator, is decisive for their ability to function stably in numerous high-temperature environments. For example, in the aerospace field, the external coatings of aircraft must withstand the high temperatures generated by atmospheric friction at high altitudes; on the surfaces of automotive engine components, the coatings must withstand the large amounts of heat dissipated during engine operation. Therefore, accurately testing the heat resistance of coatings has become an indispensable part of coating research and development, production, and quality control.

[0003] Traditional ovens for testing the heat resistance of coatings have gradually revealed a series of problems in practical use. Traditional equipment struggles to achieve precise operation in controlling the coating spraying process. Key factors such as coating thickness and uniformity have a significant impact on the final heat resistance test results, but old equipment lacks effective adjustment methods, making it difficult to achieve ideal coating coverage on the specimen surface. This interferes with the judgment of the coating's true heat resistance performance and affects the accuracy and consistency of the test results. Based on this, an oven for testing the heat resistance of coatings is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an oven for testing the heat resistance of coatings. It solves the problem that traditional equipment struggles to achieve precise operation in controlling the coating spraying process. Key factors such as the coating thickness and uniformity significantly affect the final heat resistance test results, but existing equipment lacks effective adjustment methods, making it difficult to achieve ideal coating coverage on the specimen surface. This, in turn, interferes with the judgment of the coating's true heat resistance performance and affects the accuracy and consistency of the test results.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an oven for testing the heat resistance of coatings, comprising a fixed base plate, the fixed base plate being provided with a connecting mechanism, the connecting mechanism including a traction component provided at the rear end of the fixed base plate, a main body component provided at the top of the fixed base plate, and a detection component provided at the right end of the fixed base plate.

[0006] The detection assembly includes a connecting base plate fixedly connected to the top right side of the fixed base plate. Rack plates are fixedly connected to both sides of the top of the connecting base plate. A sliding housing is slidably connected to the outer wall of the rack plates. A fixing block is fixedly connected to one end of the front of the sliding housing. A threaded rod is threadedly connected to the inner wall of the fixing block. A drive motor is fixedly installed at the top front section of the sliding housing. A rotating shaft is fixedly connected to the bottom output end of the drive motor. A gear is fixedly connected to the outer wall of the rotating shaft. A meshing gear is engaged on the left side of the gear. A transmission rod is fixedly connected to the inner wall of the meshing gear. A paint tank is fixedly installed at the top of the sliding housing. A pump is connected to the top of the paint tank. A pump pipe is connected to one end of the pump. A nozzle is connected to the top of the pump pipe. A support frame is fixedly installed at the top rear section of the sliding housing. A motor is fixedly installed at the top of the support frame. A threaded adjusting rod is fixedly connected to the bottom output end of the motor. A sliding rod is fixedly connected to the inner wall of the support frame.

[0007] A further improvement is that the traction assembly includes a fixed frame fixedly connected to the top of the rear section of the fixed base plate, a truss fixedly installed at the bottom of the upper section of the fixed frame, a sliding frame slidably connected to the outer wall of the lower section of the truss, a driver fixedly installed at one end of the front of the sliding frame, a rotating roller fixedly connected to the output end of the inner side of the driver, and a hook fixedly connected to the bottom of the sliding frame.

[0008] A further improvement is that the main component includes an oven body fixedly installed on the top of the fixed base plate, an air compressor is fixedly installed on the top of the front section of the fixed base plate, a vortex tube is connected to the top of the air compressor, connecting pipes are connected to both sides of the vortex tube, and a hot air nozzle is connected to one end of the inner side of the connecting pipe.

[0009] A further improvement is that the top of the connecting base plate has equidistant limiting holes, the threaded insert is sleeved on the inner wall of the limiting holes, and the gear and meshing gear mesh on the outer side of the rack plate; the connecting base plate fixedly connected to the top right side of the fixed base plate provides the mounting base for the entire detection assembly; the rack plates fixedly connected to both sides of the top of the connecting base plate form a sliding connection structure with the sliding box.

[0010] A further improvement is that the top outer wall of the rotating roller is rolled to the inner wall of the truss, and the hook is symmetrically arranged at the bottom of the sliding frame; when the driver fixedly installed at one end of the front of the sliding frame is activated, the output end of its inner side drives the rotating roller to rotate; since the top outer wall of the rotating roller is rolled to the inner wall of the truss, the rotation of the rotating roller drives the sliding frame to move along the direction of the truss.

[0011] A further improvement is that the connecting pipe is connected to the inner wall of the oven body; the air compressor fixedly installed at the top of the front section of the fixed substrate starts to work, compresses the air and delivers it to the vortex tube; the vortex tube uses the principle of aerodynamics to separate the compressed air into hot air and cold air; the hot air is delivered to the inner wall of the oven body through the connecting pipe connected on both sides, and is sprayed out from the hot air nozzle connected to one end of the connecting pipe, heating the test piece inside the oven body and the coating on the surface of the test piece, simulating a high-temperature environment, so as to detect the performance change of the coating at high temperature.

[0012] A further improvement is that the nozzle is threadedly connected to the outer wall of the threaded adjusting rod, and the inner wall of the nozzle is slidably connected to the outer wall of the slide rod. When it is necessary to spray paint onto the specimen, the pump connected to the top of the paint tank is started, drawing out the paint from the paint tank and delivering it to the nozzle at the top through the connected pump pipe. The nozzle is threadedly connected to the outer wall of the threaded adjusting rod, and the inner wall of the nozzle is slidably connected to the outer wall of the slide rod. After the motor fixedly installed at the top of the stand is started, the threaded adjusting rod fixedly connected to its bottom output end rotates, which can adjust the height of the nozzle. In conjunction with the movement of the sliding box, uniform paint spraying at different positions and thicknesses on the specimen can be achieved.

[0013] By means of the above technical solution, this utility model provides an oven for testing the heat resistance of coatings, which has at least the following beneficial effects:

[0014] 1. In this utility model's testing assembly, the threaded adjusting rod and sliding rod, in conjunction with the nozzle, allow for flexible adjustment of the spraying height and position. Combined with the movement of the sliding box, this ensures uniform coating. The air compressor, vortex tube, and hot air nozzle within the main assembly work together to stably output hot air, accurately simulating a high-temperature testing environment. The connecting base plate and threaded insert fix the sliding box, ensuring the stability of each component during operation. These designs effectively solve the problems of uneven heating of specimens and uneven coating in traditional ovens, greatly improving the accuracy and reliability of coating heat resistance performance testing results.

[0015] 2. This utility model uses a driver in the traction assembly to drive a rotating roller, which can automatically pull the specimen to the vicinity of the oven body; the drive motor, pump and other components in the detection assembly work together to complete the precise spraying and position adjustment of the coating. Compared with traditional ovens that rely on a lot of manual operation, this oven greatly reduces manpower input, reduces time costs, effectively improves detection efficiency, reduces the interference of human factors on the detection results, and ensures the high efficiency and consistency of the detection. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0022] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;

[0023] Figure 6 This is a schematic diagram of the inclined tilting structure of this utility model;

[0024] Figure 7 This utility model Figure 6 Enlarged structural diagram at point C.

[0025] In the diagram: 1. Fixed base plate; 2. Connecting mechanism; 21. Traction assembly; 211. Fixing frame; 212. Truss; 213. Sliding frame; 214. Driver; 215. Rotating roller; 216. Hook; 22. Main assembly; 221. Oven body; 222. Air compressor; 223. Vortex tube; 224. Connecting pipe; 225. Hot air nozzle; 23. Detection assembly; 231. Connecting base plate; 2 32. Sliding box; 233. Fixing block; 234. Threaded rod; 235. Rack plate; 236. Drive motor; 237. Rotating shaft; 238. Gear; 239. Meshing gear; 2310. Transmission rod; 2311. Paint box; 2312. Pump; 2313. Pump pipe; 2314. Spray nozzle; 2315. Stand; 2316. Motor; 2317. Threaded adjusting rod; 2318. Slide rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Traditional equipment struggles to achieve precise control over the coating spraying process. Key factors such as coating thickness and uniformity significantly impact the final heat resistance test results. However, older equipment lacks effective adjustment methods, making it difficult to achieve ideal coating coverage on the specimen surface. This interferes with the judgment of the coating's true heat resistance performance, affecting the accuracy and consistency of the test results. This embodiment provides an oven for coating heat resistance testing. Please refer to... Figures 1-7 An embodiment provides an oven for testing the heat resistance of coatings, including a fixed base plate 1. The fixed base plate 1 is provided with a connecting mechanism 2. The connecting mechanism 2 includes a traction component 21 disposed at the rear end of the fixed base plate 1, a main body component 22 disposed at the top of the fixed base plate 1, and a detection component 23 disposed at the right end of the fixed base plate 1. The detection component 23 includes a connecting base plate 231 fixedly connected to the top right side of the fixed base plate 1. A rack plate 235 is fixedly connected to both sides of the top of the connecting base plate 231. A sliding housing 232 is slidably connected to the outer wall of the rack plate 235. A fixing block 233 is fixedly connected to one end of the front of the sliding housing 232. A threaded rod 234 is threadedly connected to the inner wall of the fixing block 233. A drive motor 236 is fixedly installed at the top of the front end of the sliding housing 232. A rotating shaft 237 is fixedly connected to the bottom output end of the 36. A gear 238 is fixedly connected to the outer wall of the rotating shaft 237. A meshing gear 239 meshes with the left section of the gear 238. A transmission rod 2310 is fixedly connected to the inner wall of the meshing gear 239. A paint tank 2311 is fixedly installed on the top of the sliding box 232. A pump 2312 is connected to the top of the paint tank 2311. A pump pipe 2313 is connected to one end of the inner side of the pump 2312. A spray head 2314 is connected to the top of the pump pipe 2313. A stand 2315 is fixedly installed on the top of the rear section of the sliding box 232. A motor 2316 is fixedly installed on the top of the stand 2315. A threaded adjusting rod 2317 is fixedly connected to the bottom output end of the motor 2316. A sliding rod 2318 is fixedly connected to the inner wall of the stand 2315.

[0029] In this embodiment, the connecting base plate 231, which is fixedly connected to the top right side of the fixed base plate 1, provides the mounting foundation for the entire detection assembly 23; the rack plates 235, which are fixedly connected to both sides of the top of the connecting base plate 231, form a sliding connection structure with the sliding housing 232; when the threaded rod 234, which is threadedly connected to the inner wall of the fixing block 233, which is fixedly connected to one end of the front of the sliding housing 232, is released and the drive motor 236 is started, the rotating shaft 237, which is fixedly connected to the bottom output end of the drive motor 236, rotates, driving the gear 2 fixed to the outer wall of the rotating shaft 237. 38. Rotation; Since the outer sides of gear 238 and meshing gear 239 mesh with the inner side of rack plate 235, the rotation of gear 238 drives the transmission rod 2310 to rotate through meshing gear 239, thereby causing the sliding box 232 to slide along the direction of rack plate 235, realizing position adjustment; The paint tank 2311 fixedly installed on the top of the sliding box 232 is used to store paint; When it is necessary to spray paint on the test piece, the pump 2312 connected to the top of the paint tank 2311 is started to draw out the paint in the paint tank 2311 and discharge it through the connecting device. The pump pipe 2313 delivers the coating to the top nozzle 2314; the nozzle 2314 is threadedly connected to the outer wall of the threaded adjusting rod 2317 and its inner wall is slidably connected to the outer wall of the slide rod 2318. After the motor 2316, which is fixedly installed on the top of the stand 2315, is started, the threaded adjusting rod 2317, which is fixedly connected to its bottom output end, rotates, thereby adjusting the height of the nozzle 2314. In conjunction with the movement of the sliding box 232, uniform coating of different positions and thicknesses of the specimen is achieved; when the sliding box 232 moves to the appropriate position, it is tightened. The threaded insert 234, with equidistant limiting holes on the top of the connecting base plate 231, is fitted onto the inner wall of the limiting holes, thereby fixing the position of the sliding box 232 and ensuring the stability of the testing component 23 during the coating spraying and subsequent testing processes. During the entire coating heat resistance testing process, the traction component 21 pulls the specimen to the vicinity of the oven, the main component 22 creates a high-temperature testing environment, and the testing component 23 completes the coating spraying and related testing preparation work. All components cooperate with each other to complete the accurate testing of the coating heat resistance performance.

[0030] Furthermore, the top of the connecting base plate 231 is provided with equidistant limiting holes, the threaded rod 234 is sleeved on the inner wall of the limiting hole, and the gear 238 and the meshing gear 239 are meshed on the inner side of the rack plate 235; the nozzle 2314 is threadedly connected to the outer wall of the threaded adjusting rod 2317 and the inner wall of the nozzle 2314 is slidably connected to the outer wall of the slide rod 2318.

[0031] Furthermore, the nozzle 2314 is threadedly connected to the outer wall of the threaded adjusting rod 2317, and the inner wall of the nozzle 2314 is slidably connected to the outer wall of the slide rod 2318. After the motor 2316, which is fixedly installed on the top of the stand 2315, is started, the threaded adjusting rod 2317, which is fixedly connected to its bottom output end, rotates, which can adjust the height of the nozzle 2314. In conjunction with the movement of the sliding box 232, uniform coating of different positions and thicknesses of the specimen can be sprayed. When the sliding box 232 moves to the appropriate position, the threaded insert 234 is tightened. Since the top of the connecting base plate 231 is provided with equidistant limit holes, the threaded insert 234 is sleeved on the inner wall of the limit hole, thereby fixing the position of the sliding box 232 and ensuring the stability of the detection component 23 during the coating spraying and subsequent testing. During the entire coating heat resistance test, the traction component 21 pulls the specimen to the vicinity of the oven, the main component 22 creates a high-temperature testing environment, and the detection component 23 completes the coating spraying and related testing preparation work.

[0032] Example 2

[0033] Based on embodiment 1, the traction component 21 includes a fixed frame 211 fixedly connected to the top of the rear section of the fixed base plate 1. A truss 212 is fixedly installed at the bottom of the upper section of the fixed frame 211. A sliding frame 213 is slidably connected to the outer wall of the lower section of the truss 212. A driver 214 is fixedly installed at one end of the front side of the sliding frame 213. A rotating roller 215 is fixedly connected to the output end of the inner side of the driver 214. A hook frame 216 is fixedly connected to the bottom of the sliding frame 213. The main component 22 includes an oven body 221 fixedly installed on the top of the fixed base plate 1. An air compressor 222 is fixedly installed on the top of the front section of the fixed base plate 1. A vortex tube 223 is connected to the top of the air compressor 222. A connecting pipe 224 is connected to both sides of the vortex tube 223. A hot air nozzle 225 is connected to one end of the inner side of the connecting pipe 224.

[0034] In this embodiment, when the test specimen to be tested needs to be sent into the oven body 221 for testing, the fixed frame 211 fixedly connected to the top of the rear section of the fixed base plate 1 plays a supporting role; the truss 212 fixedly installed at the bottom of the upper section of the fixed frame 211 provides a track for the movement of the sliding frame 213; the driver 214 fixedly installed at one end of the front of the sliding frame 213 is activated, and its inner output end drives the rotating roller 215 to rotate; since the outer wall of the top of the rotating roller 215 is rolledly connected to the inner wall of the truss 212, the rotation of the rotating roller 215 drives the sliding frame 213 to move along the direction of the truss 212; the hooks 216 symmetrically arranged at the bottom of the sliding frame 213 can be used to hook the test specimen to be tested during the movement of the sliding frame 213, and smoothly pull the test specimen. The air is directed to the vicinity of the oven body 221 for subsequent testing inside the oven. The oven body 221, which is fixedly installed on the top of the fixed substrate 1, is the core space for heat resistance testing of the coating. The air compressor 222, which is fixedly installed on the top of the front section of the fixed substrate 1, starts to work, compresses the air and delivers it to the vortex tube 223. The vortex tube 223 uses aerodynamic principles to separate the compressed air into hot air and cold air. The hot air is delivered to the inner wall of the oven body 221 through the connecting pipe 224 connected on both sides, and is sprayed out from the hot air nozzle 225 connected to one end of the connecting pipe 224 to heat the specimen inside the oven body 221 and the coating on the surface of the specimen, simulating a high-temperature environment to detect the performance changes of the coating at high temperatures.

[0035] Furthermore, the top outer wall of the rotating roller 215 is rotatably connected to the inner wall of the truss 212, and the hook frame 216 is symmetrically arranged at the bottom of the sliding frame 213; the connecting pipe 224 is connected to the inner wall of the oven body 221.

[0036] Furthermore, since the outer wall of the top of the rotating roller 215 is rolled to the inner wall of the truss 212, the rotation of the rotating roller 215 drives the sliding frame 213 to move along the direction of the truss 212; the hook frame 216 symmetrically arranged at the bottom of the sliding frame 213 can be used to hook the test specimen during the movement of the sliding frame 213, and smoothly pull the test specimen to the vicinity of the oven body 221 so that it can be sent into the oven for testing; the oven body 221, which is fixedly installed on the top of the fixed base plate 1, is the core space for conducting heat resistance testing of the coating; the air compressor 222, which is fixedly installed on the top of the front section of the fixed base plate 1, starts to work, compresses the air and delivers it to the vortex tube 223; the vortex tube 223 uses the principle of aerodynamics to separate the compressed air into hot air and cold air.

[0037] Working principle: When the test specimen needs to be sent into the oven body 221 for testing, the fixed frame 211, which is fixedly connected to the top of the rear section of the fixed base plate 1, plays a supporting role; the truss 212, which is fixedly installed at the bottom of the upper section of the fixed frame 211, provides a track for the movement of the sliding frame 213; the driver 214, which is fixedly installed at one end of the front of the sliding frame 213, is activated, and its inner output end drives the rotating roller 215 to rotate; since the outer wall of the top of the rotating roller 215 is rolledly connected to the inner wall of the truss 212, the rotation of the rotating roller 215 drives the sliding frame 213 to move along the direction of the truss 212; the hooks 216, which are symmetrically arranged at the bottom of the sliding frame 213, can be used to hook the test specimen during the movement of the sliding frame 213, and smoothly pull the test specimen to the vicinity of the oven body 221 so that it can be sent into the oven for testing later;

[0038] The oven body 221, which is fixedly installed on the top of the fixed substrate 1, is the core space for conducting heat resistance testing of the coating. The air compressor 222, which is fixedly installed on the top of the front section of the fixed substrate 1, starts to work, compresses the air and delivers it to the vortex tube 223. The vortex tube 223 uses the principle of aerodynamics to separate the compressed air into hot air and cold air. The hot air is delivered to the inner wall of the oven body 221 through the connecting pipe 224 connected on both sides, and is sprayed out from the hot air nozzle 225 connected to one end of the connecting pipe 224 to heat the test piece inside the oven body 221 and the coating on the surface of the test piece, simulating a high-temperature environment to detect the performance changes of the coating at high temperature.

[0039] The connecting base plate 231, fixedly connected to the top right side of the fixed base plate 1, provides the mounting foundation for the entire detection assembly 23; the rack plates 235 fixedly connected to both sides of the top of the connecting base plate 231 form a sliding connection structure with the sliding housing 232; when the threaded rod 234 threadedly connected to the inner wall of the fixing block 233 fixedly connected to one end of the front of the sliding housing 232 is loosened, and the drive motor 236 starts, the rotating shaft 237 fixedly connected to the bottom output end of the drive motor 236 rotates, driving the gear 238 fixedly connected to the outer wall of the rotating shaft 237 to rotate; Gear 238 and meshing gear 239 mesh on the outer side of rack plate 235. The rotation of gear 238 drives transmission rod 2310 to rotate through meshing gear 239, thereby causing sliding box 232 to slide along rack plate 235 to achieve position adjustment. Paint tank 2311 fixedly installed on top of sliding box 232 is used to store paint. When it is necessary to spray paint on the test piece, pump 2312 connected to the top of paint tank 2311 is started to draw out paint from paint tank 2311 and pump it out through the connected pump pipe. 2313 delivers the spray head 2314 to the top; the spray head 2314 is threadedly connected to the outer wall of the threaded adjusting rod 2317 and its inner wall is slidably connected to the outer wall of the slide rod 2318. After the motor 2316, which is fixedly installed on the top of the stand 2315, is started, the threaded adjusting rod 2317, which is fixedly connected to its bottom output end, rotates, which can adjust the height of the spray head 2314. In conjunction with the movement of the sliding box 232, uniform coating of different positions and thicknesses of the specimen can be sprayed. When the sliding box 232 moves to the appropriate position, the threads are tightened. The insertion rod 234, with equidistant limiting holes on the top of the connecting base plate 231, is fitted onto the inner wall of the limiting holes, thereby fixing the position of the sliding box 232 and ensuring the stability of the testing component 23 during the coating spraying and subsequent testing processes. During the entire coating heat resistance testing process, the traction component 21 pulls the specimen to the vicinity of the oven, the main component 22 creates a high-temperature testing environment, and the testing component 23 completes the coating spraying and related testing preparation work. All components cooperate with each other to complete the accurate testing of the coating heat resistance performance.

[0040] 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.

[0041] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oven for testing the heat resistance of coatings, comprising a fixed substrate (1), characterized in that: The fixed base plate (1) is provided with a connecting mechanism (2), the connecting mechanism (2) includes a traction component (21) provided at the rear end of the fixed base plate (1), a main body component (22) provided at the top of the fixed base plate (1), and a detection component (23) provided at the right end of the fixed base plate (1). The detection component (23) includes a connecting base plate (231) fixedly connected to the top right side of the fixed base plate (1). A rack plate (235) is fixedly connected to both sides of the top of the connecting base plate (231). A sliding housing (232) is slidably connected to the outer wall of the rack plate (235). A fixing block (233) is fixedly connected to one end of the front of the sliding housing (232). A threaded rod (234) is threadedly connected to the inner wall of the fixing block (233). A drive motor (236) is fixedly installed at the top front section of the sliding housing (232). A rotating shaft (237) is fixedly connected to the bottom output end of the drive motor (236). A gear (238) is fixedly connected to the outer wall of the rotating shaft (237). A meshing gear (238) is engaged on the left side of the gear (238). 239), a transmission rod (2310) is fixedly connected to the inner wall of the meshing gear (239), a paint tank (2311) is fixedly installed on the top of the sliding box (232), a pump (2312) is connected to the top of the paint tank (2311), a pump pipe (2313) is connected to one end of the inner side of the pump (2312), a nozzle (2314) is connected to the top of the pump pipe (2313), a stand (2315) is fixedly installed on the top of the rear section of the sliding box (232), a motor (2316) is fixedly installed on the top of the stand (2315), a threaded adjusting rod (2317) is fixedly connected to the bottom output end of the motor (2316), and a slide rod (2318) is fixedly connected to the inner wall of the stand (2315).

2. The oven for testing the heat resistance of coatings according to claim 1, characterized in that: The traction assembly (21) includes a fixed frame (211) fixedly connected to the top of the rear section of the fixed base plate (1). A truss (212) is fixedly installed at the bottom of the upper section of the fixed frame (211). A sliding frame (213) is slidably connected to the outer wall of the lower section of the truss (212). A driver (214) is fixedly installed at one end of the front of the sliding frame (213). A rotating roller (215) is fixedly connected to the output end of the inner side of the driver (214). A hook frame (216) is fixedly connected to the bottom of the sliding frame (213).

3. The oven for testing the heat resistance of coatings according to claim 1, characterized in that: The main component (22) includes an oven body (221) fixedly installed on the top of the fixed base plate (1). An air compressor (222) is fixedly installed on the top of the front section of the fixed base plate (1). A vortex tube (223) is connected to the top of the air compressor (222). A connecting pipe (224) is connected to both sides of the vortex tube (223). A hot air nozzle (225) is connected to one end of the inner side of the connecting pipe (224).

4. The oven for testing the heat resistance of coatings according to claim 1, characterized in that: The connecting base plate (231) has equidistant limiting holes on its top, the threaded rod (234) is sleeved on the inner wall of the limiting hole, and the gear (238) and the meshing gear (239) are meshed on the inner side of the rack plate (235).

5. An oven for testing the heat resistance of coatings according to claim 2, characterized in that: The top outer wall of the rotating roller (215) is rolled to the inner wall of the truss (212), and the hook frame (216) is symmetrically arranged at the bottom of the sliding frame (213).

6. An oven for testing the heat resistance of coatings according to claim 3, characterized in that: The connecting pipe (224) is connected to the inner wall of the oven body (221).

7. An oven for testing the heat resistance of coatings according to claim 1, characterized in that: The nozzle (2314) is threaded to the outer wall of the threaded adjusting rod (2317) and the inner wall of the nozzle (2314) is slidably connected to the outer wall of the slide rod (2318).

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