A coating curing furnace for cookware production

Abstract

The utility model relates to a kind of coating curing oven for pot production, characterized by including bottom plate and gas collector etc., curing oven is installed in bottom plate, control box is installed in bottom plate, preheating box is installed in curing oven front side, gas outlet pipe is connected in the top of curing oven, gas collector middle part is communicated with gas outlet pipe, gas collector front end is communicated with the top of preheating box, gas collector rear end is communicated with the tail end of curing oven, preheating box side is provided with exhaust pipe, curing oven side is connected with several support frames, the top of support frame is jointly connected with recovery tank, cooling pipe is installed in the top of recovery tank, cooling pipe surrounds exhaust pipe, cooling assembly for continuously cooling the airflow in exhaust pipe is arranged on bottom plate;Advantages are that curing oven top gas outlet pipe is connected with gas collector, hot air flow shunt passage is formed, curing oven front end temperature gradually rises to preset preheating range, avoid pot directly exposed to high temperature environment, ensure pot coating quality.

Description

Technical Field

[0001] This utility model relates to the field of cookware manufacturing equipment, and in particular to a coating curing oven for cookware production. Background Technology

[0002] Cookware is an indispensable cooking utensil in modern kitchens. It is usually made of metal materials such as stainless steel, aluminum alloy, or cast iron, and its surface is often covered with a functional coating to achieve properties such as non-stick, corrosion resistance, and easy cleaning. These coatings are applied to the surface of the cookware substrate through a spraying process and need to be cured to form a dense protective layer, thereby ensuring the adhesion between the coating and the substrate and the performance of the cookware.

[0003] Existing cookware coating curing equipment typically employs an assembly line operation mode. Cookware is fed into the curing oven via a conveyor belt or robotic arm, where heat is provided through hot air circulation, infrared radiation, or microwave heating to cause the solvent in the coating to evaporate, the resin to cross-link, and finally cure. The core design principle of this type of equipment is to accelerate the coating curing process through a high-temperature environment to meet the efficiency requirements of industrial production.

[0004] The rapid heating of existing curing equipment can cause the residual solvent in the coating to evaporate rapidly due to high temperature, which can easily form defects such as bubbles and pinholes inside or on the surface of the coating, reducing the density of the coating. The uncrosslinked resin loses its flow control at high temperature, resulting in uneven coating thickness, and may even cause cracking or peeling due to local overheating. The difference in thermal expansion coefficients between the substrate and the coating leads to internal stress concentration, and the coating is prone to cracking or peeling after cooling due to stress release. Utility Model Content

[0005] The technical problem to be solved by this utility model is that high temperature causes defects in the coating structure, and a coating curing oven with preheating function is provided for cookware production.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a coating curing oven for cookware production, including a bottom plate and a gas collecting pipe. The curing oven is installed on the bottom plate, a preheating box is installed on the front side of the curing oven, a control box is installed on the bottom plate, the control box is wired to the curing oven, an exhaust pipe is connected to the top of the curing oven, the middle part of the gas collecting pipe is connected to the exhaust pipe, the front end of the gas collecting pipe is connected to the top of the preheating box, the rear end of the gas collecting pipe is connected to the tail end of the curing oven, an exhaust pipe is provided on the side of the preheating box, several support frames are connected to the side of the curing oven, a recovery box is connected to the top of the support frames, a cooling pipe is installed on the top of the recovery box, the cooling pipe surrounds the exhaust pipe, and a cooling component for continuously cooling the airflow in the exhaust pipe is provided on the bottom plate.

[0007] A further preferred embodiment of this utility model is as follows: the cooling component includes a water supply pipe, a cooling tower is installed on the base plate, a water tank is provided at the bottom of the cooling tower, a water pump is installed at the bottom of the cooling tower, the water pump's inlet is located in the water tank, one end of the water supply pipe is connected to the water pump's outlet, the other end of the water supply pipe is connected to a diversion pipe, the diversion pipe is connected to the top of the cooling pipe, and a drain pipe is provided between the outlet at the bottom of the recovery tank and the cooling tower.

[0008] A further preferred embodiment of this utility model is as follows: a temperature sensor is installed inside the preheating box, an exhaust fan is installed inside the exhaust pipe, and the temperature sensor and the exhaust fan are connected by a wire.

[0009] A further preferred embodiment of this utility model is that a stabilizing frame is provided on both the base plate and the curing oven, and the stabilizing frame is used to support the exhaust pipe, the drain pipe and the water supply pipe.

[0010] A further preferred embodiment of this utility model is: a guide plate is connected to the top surface of the recycling bin, and the guide plate is provided with an inclined arc surface.

[0011] A further preferred embodiment of this utility model is that a filter nozzle is installed at the water inlet of the water pump.

[0012] A further preferred embodiment of this utility model is that a flow divider is connected to the top of the preheating box.

[0013] A further preferred embodiment of this utility model is: an air curtain door is installed at the top front end of the preheating box, and the air curtain door is wiredly connected to the temperature sensor.

[0014] Compared with the prior art, the advantages of this utility model are: by connecting the gas outlet pipe and the gas collection pipe at the top of the curing oven to form a hot air flow diversion channel, the temperature at the front end of the curing oven is gradually increased to the preset preheating range, avoiding the cookware from being directly exposed to the high temperature environment, reducing structural defects such as bubbles and cracks caused by rapid solvent evaporation or uncontrolled resin flow, and ensuring the quality of the cookware coating. Attached Figure Description

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a cross-sectional view showing the connection relationship between the curing oven and the preheating box of this utility model.

[0017] Figure 3 This is a cross-sectional view of the installation structure of the recycling box and cooling pipe of this utility model.

[0018] Figure 4 This is a schematic diagram showing the connection relationship between the cooling tower and the water pump of this utility model.

[0019] Figure 5 This is a schematic diagram showing the connection relationship between the guide plate and the drainage pipe of this utility model.

[0020] Figure 6 This is a sectional view of the installation structure of the exhaust fan and exhaust pipe of this utility model.

[0021] In the diagram: 1. Base plate, 2. Curing oven, 3. Control box, 4. Gas outlet pipe, 5. Gas collection pipe, 6. Preheating box, 7. Exhaust pipe, 8. Support frame, 9. Recovery box, 10. Cooling pipe, 11. Cooling tower, 12. Water tank, 13. Water pump, 14. Drain pipe, 15. Water supply pipe, 16. Diverter pipe, 17. Temperature sensor, 18. Exhaust fan, 19. Stabilizer, 20. Guide plate, 21. Filter nozzle, 22. Diverter plate, 23. Air curtain door. Detailed Implementation

[0022] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0023] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0024] This embodiment mainly describes the structure of the coating curing oven, as follows: A coating curing oven for cookware production, such as Figures 1-6As shown, the system includes a base plate 1, a curing oven 2, a control box 3, an exhaust pipe 4, an exhaust collection pipe 5, a preheating box 6, an exhaust pipe 7, a support frame 8, a recovery box 9, a cooling pipe 10, and a cooling assembly. The curing oven 2 is mounted on the base plate 1, and the control box 3 is also mounted on the base plate 1. The control box 3 is used to control the start / stop and internal temperature of the curing oven 2. The preheating box 6 is mounted on the front side of the curing oven 2. The exhaust pipe 4 is connected to the top of the curing oven 2. The middle part of the exhaust collection pipe 5 is connected to the exhaust pipe 4, and the front end of the exhaust collection pipe 5 is connected to the top of the preheating box 6. The rear end of the gas collecting pipe 5 is connected to the tail end of the curing oven 2. The gas outlet pipe 4 and the gas collecting pipe 5 form a hot air circulation channel. The heat is dynamically distributed between the curing oven 2 and the preheating box 6 through the diversion design. The preheating box 6 is provided with an exhaust pipe 7 on the side. Several support frames 8 are connected to the side of the curing oven 2. The top of the support frames 8 is connected to a recovery box 9. A cooling pipe 10 is installed on the top of the recovery box 9. The cooling pipe 10 surrounds the exhaust pipe 7. A cooling component for continuously cooling the airflow in the exhaust pipe 7 is provided on the bottom plate 1.

[0025] like Figure 3 and Figure 4 As shown, the cooling assembly includes a cooling tower 11, a water pump 13, a drain pipe 14, a water supply pipe 15, and a branch pipe 16. The cooling tower 11 is installed on the base plate 1. A water tank 12 is provided at the bottom of the cooling tower 11. The water pump 13 is installed at the bottom of the cooling tower 11. The water pump 13 is wired to the control box 3. The water inlet of the water pump 13 is located in the water tank 12. One end of the water supply pipe 15 is connected to the outlet of the water pump 13. The other end of the water supply pipe 15 is connected to the branch pipe 16. The branch pipe 16 is connected to the top of the cooling pipe 10. A drain pipe 14 is provided between the outlet of the bottom of the recovery box 9 and the cooling tower 11.

[0026] like Figure 2 and Figure 6 As shown, it also includes a temperature sensor 17 and an exhaust fan 18. The temperature sensor 17 is installed inside the preheating box 6, and the exhaust fan 18 is installed inside the exhaust pipe 7. The temperature sensor 17 and the exhaust fan 18 are connected by wires. The temperature sensor 17 is connected to the control box 3 by wires and a preheating temperature threshold range is set. The exhaust fan 18 starts and stops according to the signal from the control box 3.

[0027] like Figure 1 and Figure 6 As shown, it also includes a stabilizing frame 19. The stabilizing frame 19 is provided on both the base plate 1 and the curing oven 2. The stabilizing frame 19 is used to support the exhaust pipe 7, the drain pipe 14, and the water supply pipe 15.

[0028] like Figure 5 As shown, it also includes a guide plate 20. The top surface of the recycling bin 9 is connected to the guide plate 20, and the guide plate 20 is provided with an inclined arc surface.

[0029] like Figure 4As shown, it also includes a filter nozzle 21. The water pump 13 is equipped with a filter nozzle 21 at its intake port. The filter nozzle 21 filters impurities to prevent pipe blockage and reduces the frequency of equipment maintenance.

[0030] like Figure 2 As shown, it also includes a flow divider 22, which is connected to the top of the preheating box 6.

[0031] like Figure 2 As shown, it also includes an air curtain door 23. An air curtain door 23 is installed on the top front end of the preheating box 6. The air curtain door 23 is wired to the temperature sensor 17. The air curtain door 23 responds quickly to the temperature signal, accurately controls the heat exchange, and improves the uniformity of preheating.

[0032] After the workers push the coated cookware into the curing oven 2, they turn on the curing oven 2 via the control box 3 to begin the coating curing process. Before curing, the cookware is preheated. First, the high-temperature airflow inside the curing oven 2 is evenly distributed into the gas collecting pipe 5 through the top gas outlet pipe 4. Part of the airflow flows back into the curing oven 2 through the rear end of the gas collecting pipe 5 to maintain the core curing temperature, while the other part enters the preheating chamber 6 along the front end of the gas collecting pipe 5. At this time, the circulating hot airflow in the space between the curing oven 2 and the preheating chamber 6 heats the outer ring of the curing oven 2, gradually raising the temperature at the front end of the curing oven 2 to the preset preheating range, creating a gentle heat radiation environment for the cookware waiting to be cured.

[0033] To control preheating stability, hot air from the preheating chamber 6 is discharged through exhaust pipe 7. The airflow is evenly dispersed by the diverter plate 22 and circulates along the outer ring of the curing oven 2 before finally converging into exhaust pipe 7. Temperature sensor 17 installed inside the preheating chamber 6 monitors the temperature in real time. If the temperature exceeds the set range, control box 3 activates the exhaust fan 18 in exhaust pipe 7 to inject cold outside air into the preheating chamber 6 to lower the temperature. If the temperature is lower than the set value, control box 3 immediately closes the air curtain door 23 at the front of the preheating chamber 6 to block airflow exchange between the front of the curing oven 2 and the outside, reducing heat loss. Through dynamic adjustment, the cookware is ensured to complete the initial curing of the coating in a constant preheating environment, avoiding coating cracking or uneven solvent evaporation caused by sudden temperature changes.

[0034] When the curing oven 2 is turned on, the water pump 13 is also turned on simultaneously. During the hot gas emission stage, the high-temperature gas in the exhaust pipe 7 is cooled. The water pump 13 draws cold water from the water tank 12, delivers it through the water supply pipe 15 to the distribution pipe 16, and then evenly injects it into the cooling pipe 10. The cooling pipe 10 tightly surrounds the exhaust pipe 7 to form a water-cooled jacket, which forcibly cools the passing gas and prevents heat from directly diffusing into the working environment. The drain pipe 14 transports the water in the recovery tank 9 back to the cooling tower 11, forming a closed-loop water circulation. During the process, the stabilizer 19 provides structural support for the cooling pipe 10, the water supply pipe 15, and the drain pipe 14 to prevent the pipes from deforming due to thermal expansion and contraction or water flow impact. The filter nozzle 21 at the inlet of the water pump 13 continuously filters impurities in the water to prevent clogging of the pipes or damage to the equipment. Through the above process, both the exhaust temperature is controlled and the efficient recycling of water resources is achieved.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] The coating curing oven for cookware production provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A coating curing oven for cookware production, characterized in that: The device includes a base plate (1) and a gas collecting pipe (5). A curing oven (2) is installed on the base plate (1). A control box (3) is installed on the base plate (1). The control box (3) is wired to the curing oven (2). A preheating box (6) is installed on the front side of the curing oven (2). An exhaust pipe (4) is connected to the top of the curing oven (2). The middle part of the gas collecting pipe (5) is connected to the exhaust pipe (4). The front end of the gas collecting pipe (5) is connected to the top of the preheating box (6). The rear end of the gas collecting pipe (5) is connected to the tail end of the curing oven (2). An exhaust pipe (7) is provided on the side of the preheating box (6). Several support frames (8) are connected to the side of the curing oven (2). A recycling box (9) is connected to the top of the support frames (8). A cooling pipe (10) is installed on the top of the recycling box (9). The cooling pipe (10) surrounds the exhaust pipe (7). A cooling component for continuously cooling the airflow in the exhaust pipe (7) is provided on the base plate (1).

2. The coating curing oven for cookware production according to claim 1, characterized in that: The cooling assembly includes a water supply pipe (15), a cooling tower (11) is installed on the base plate (1), a water tank (12) is provided at the bottom of the cooling tower (11), a water pump (13) is installed at the bottom of the cooling tower (11), the control box (3) is wired to the water pump (13), the water inlet of the water pump (13) is located in the water tank (12), one end of the water supply pipe (15) is connected to the outlet of the water pump (13), the other end of the water supply pipe (15) is connected to a diversion pipe (16), the diversion pipe (16) is connected to the top of the cooling pipe (10), and a drain pipe (14) is provided between the outlet of the bottom of the recovery box (9) and the cooling tower (11).

3. A coating curing oven for cookware production according to claim 2, characterized in that: A temperature sensor (17) is installed inside the preheating box (6), and an exhaust fan (18) is installed inside the exhaust pipe (7). The temperature sensor (17) and the exhaust fan (18) are connected by wires.

4. A coating curing oven for cookware production according to claim 3, characterized in that: Both the base plate (1) and the curing oven (2) are equipped with a stabilizing frame (19), which is used to support the exhaust pipe (7), the drain pipe (14) and the water supply pipe (15).

5. A coating curing oven for cookware production according to claim 4, characterized in that: The top surface of the recycling bin (9) is connected to a guide plate (20), and the guide plate (20) is provided with an inclined arc surface.

6. A coating curing oven for cookware production according to claim 5, characterized in that: The water pump (13) is equipped with a filter (21) at its intake port.

7. A coating curing oven for cookware production according to claim 6, characterized in that: A flow divider (22) is connected to the top of the preheating box (6).

8. A coating curing oven for cookware production according to claim 7, characterized in that: The preheating box (6) is equipped with an air curtain door (23) at the top front end, and the air curtain door (23) is wired to the temperature sensor (17).

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