Automobile sealing strip spraying oven machine

Abstract

The utility model relates to the technical field of oven machine production, in particular to an automobile sealing strip spraying oven machine which comprises an oven machine body, a heat insulation plate is arranged in an inner cavity of the oven machine body, the heat insulation plate divides the inner cavity of the oven machine body into a heating cavity and a drying cavity, and a heating rod is arranged in the heating cavity. Through the arrangement of a heat insulation plate, the heating rod is prevented from directly heating the drying cavity; a plurality of storage plates are sequentially arranged in the drying cavity from top to bottom, cavities are formed in the storage plates, heat conduction pipes communicated with the cavities are arranged in the storage plates, and one ends of the heat conduction pipes penetrate through the heat insulation plate and extend into the heating cavity; a heat transfer device used for guiding heat generated by the heating rods into the heat conduction pipes is arranged in the drying box body, guiding-in of the heat on the heat conduction pipes is controlled through the heat transfer device, the temperatures of all the storage plates are the same, and the problem that the drying temperatures of automobile sealing strips at all positions are inconsistent due to the fact that the temperatures in the drying box are inconsistent is solved. The device can be widely applied to the technical field of oven machine production.

Description

Technical Field

[0001] The utility model relates to the technical field of oven production, in particular to an automobile sealing strip spraying oven. Background Art

[0002] In industrial production, automotive sealing strips are often sprayed with anti-aging coatings to improve their aging resistance. After the anti-aging coating is sprayed, the strips need to be dried before proceeding to the next process. To speed up the drying process, the strips can be heated and dried in an oven.

[0003] Automotive sealing strips are primarily made of rubber, which has poor thermal conductivity. Temperatures vary widely across the oven, causing uneven heating of strips placed in different locations. This can lead to significant temperature variations across the strip's surface. High-temperature seals can be damaged by the heat, while those with cooler areas dry more slowly. Utility Model Content

[0004] Aiming at the problem that the temperature difference at different positions of the oven is large and the thermal conductivity of the sealing strip is poor, resulting in uneven heating and inconsistent drying temperatures of automobile sealing strips at different positions, the utility model proposes an automobile sealing strip spraying oven.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A drying oven for spraying automobile sealing strips comprises an oven main body, an inner cavity of which is provided with a heat insulation board, which divides the inner cavity of the oven main body into a heating cavity and a drying cavity; a plurality of storage plates are sequentially arranged from top to bottom in the drying cavity, each of which has a cavity, and a heat pipe connected to the cavity is arranged in the storage plate, with one end of the heat pipe passing through the heat insulation board and extending into the heating cavity; a heating rod is arranged in the heating cavity, and a heat transfer device is provided in the drying oven for conducting heat generated by the heating rod into the heat pipe.

[0007] The utility model separates the heating rod from the drying chamber by a heat insulation plate, so as to prevent the heat of the heating rod from being directly transferred into the drying chamber, resulting in the problem that the temperature near the heating rod in the drying chamber is higher and the temperature far from the heating rod is lower; the heat generated by the heating rod is directly introduced into the cavity of each storage plate by a heat pipe, and the heat guided by each heat pipe is the same, so that the temperature of the surface of each storage plate is consistent, and the automobile sealing strips on different storage plates are heated at a similar rate, thereby avoiding the problem that the temperature of some automobile sealing strips in the oven is greatly different.

[0008] Preferably, the heat transfer device includes a first partition arranged in the heating chamber, the first partition divides the heating chamber into an isolation chamber and a heating chamber, the heating rod is arranged in the heating chamber, and the heating chamber is also provided with a fan located on the side of the heat pipe far from the heating rod, one end of the heat pipe passes through the isolation chamber and the first partition and is connected to the heating chamber; the main body of the drying box is provided with an exhaust pipe connected to the cavity.

[0009] The utility model generates hot air by cooperating with the fan and the heating rod. The hot air enters the cavity of the storage plate through the heat conduction pipe to heat the storage plate. The temperature of the hot air at different heights in the heating cavity will be slightly different. The setting of the first partition plate makes the hot air entering each heat conduction pipe at the same horizontal height, thereby making the heat transfer efficiency of each heat conduction pipe consistent. After the hot air enters the cavity through the heat conduction pipe, it is discharged from the exhaust pipe.

[0010] Preferably, the heat transfer device includes a second partition arranged in the heating chamber, the second partition separates the heating chamber into an oil chamber and a pipe chamber, heat transfer oil is stored in the oil chamber, the heating rod is arranged in the oil chamber, one end of the heat transfer pipe passes through the pipe chamber and through the second partition and is inserted below the liquid level of the heat transfer oil in the oil chamber, the heating chamber is also provided with an air pump for pumping the oil in the oil chamber into the heat transfer pipe, and a recovery pipe for recovering the heat transfer oil to the oil chamber is provided on the placement plate.

[0011] The utility model heats the heat-conducting oil in the oil chamber by a heating rod, and then sends the heat-conducting oil in the oil chamber into the cavity through a heat-conducting pipe, and heats the placed plate by the flow of the heat-conducting oil in the cavity; the heat-conducting oil has a high heat transfer efficiency and a good heat conduction effect; the heat-conducting oil is then recovered to the oil chamber through a recovery pipe, thereby realizing the internal circulation of the heat-conducting oil, and allowing the oven to work continuously.

[0012] Preferably, a plurality of guide plates are provided in the cavity of the storage plate, and the guide plates cooperate with the inner wall of the storage plate to form an air intake channel, and an air intake hole connected to the heat pipe and an exhaust hole connected to the exhaust pipe are respectively provided at both ends of the air intake channel.

[0013] The utility model provides a guide plate to form an air intake in the cavity of the storage plate, thereby extending the flow time of hot air in the cavity and enhancing the heating effect of the hot air on the storage plate; at the same time, the hot air is distributed more evenly in the cavity, avoiding the problem of different temperatures at different positions in the cavity.

[0014] As a preference, the upper surface of the storage board is evenly covered with bumps.

[0015] The utility model provides a bump on the surface of the storage plate; the automobile sealing strip is mainly composed of rubber and has good sealing performance. A relatively closed space is formed between the lower surface of the automobile sealing strip and the surface of the storage plate. The gas evaporated from the lower surface of the automobile sealing strip is difficult to discharge, which is not conducive to the drying of the automobile sealing strip. The provision of the bump avoids the formation of the above-mentioned closed space, and the gas evaporated from the lower surface of the automobile sealing strip can be discharged smoothly.

[0016] Preferably, an insulation board is laid on the lower surface of the storage board.

[0017] The utility model provides an insulation plate on the lower surface of the storage plate; if the insulation plate is not provided, the heat in the cavity of the upper storage plate will dissipate from the lower surface of the storage plate, causing the temperature of the automobile sealing strip on the lower storage plate to rise, thereby causing the problem of inconsistent temperature of the automobile sealing strip on the upper and lower storage plates.

[0018] Preferably, an air outlet is provided on the top wall of the drying chamber body, and an activated carbon filter device is provided in the air outlet.

[0019] The utility model realizes the discharge of gas in the drying box through the air outlet, wherein the activated carbon filter device can prevent the odor in the drying box from being emitted into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of the drying oven in Example 1;

[0021] Figure 2 This is a schematic structural diagram of the drying oven in Example 2;

[0022] Figure 3 2 is a cross-sectional view of the storage plate cavity in Example 1;

[0023] Figure 4 This is a schematic diagram of the structure of the storage plate in Example 2.

[0024] The parts indicated by the numbers in the accompanying drawings are as follows:

[0025] 110. Drying oven body; 1101. Activated carbon filter device; 120. Heat insulation board; 130. Heating chamber; 1301. Heating rod; 1302. First partition board; 1303. Isolation chamber; 1304. Heating chamber; 1305. Fan; 1306. Second partition board; 1307. Oil chamber; 1308. Pipe chamber; 1309. Recovery pipe; 140. Drying chamber; 150. Storage board; 1501. Cavity; 1502. Guide plate; 1503. Air inlet; 1504. Exhaust hole; 1505. Bump; 1506. Heat insulation board; 160. Heat pipe; 170. Exhaust pipe. DETAILED DESCRIPTION

[0026] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments. It should be understood that the embodiments are merely for explanation of the present invention and are not intended to limit the present invention.

[0027] Example 1

[0028] Automobile sealing strips are mainly made of rubber, which has poor thermal conductivity. The temperature at different locations in the oven is different. When using an oven to dry automobile sealing strips, it is easy for the temperature of the automobile sealing strips near the heating rod 1301 in the oven to be higher, while the temperature of the automobile sealing strips far from the heating rod 1301 in the oven is lower. This not only affects the drying efficiency of the oven, but may also cause the automobile sealing strips to be damaged due to local overheating.

[0029] In order to solve the above problems, a heat insulation plate 120 is set in the oven body 110 to divide the inner cavity of the oven body 110 into a heating cavity 130 and a drying cavity 140. The heating rod 1301 is set in the heating cavity 130. The setting of the heat insulation plate 120 avoids direct heating of the drying cavity 140 by the heating rod 1301, thereby avoiding the temperature difference between different positions in the oven due to the distance from the heating rod 1301.

[0030] A plurality of storage plates 150 for placing automobile sealing strips are provided in the drying chamber 140, so that the oven can dry a plurality of automobile sealing strips. A cavity 1501 is provided in the storage plate 150, and a heat pipe 160 is provided on the storage plate 150, which is connected to the cavity 1501. One end of the heat pipe 160 passes through the heat insulation plate 120 and extends into the heating chamber 130. The heat generated by the electric heating rod is evenly transferred to each heat pipe 160 by a heat transfer device, and then enters the cavity 1501 of the storage plate 150, thereby achieving synchronous heating of each storage plate 150, so that the surface temperature of each storage plate 150 is similar, thereby avoiding a large temperature difference between the automobile sealing strips on different storage plates 150.

[0031] This embodiment provides a heat transfer device, which generates a continuous flow of hot air through the cooperation of the fan 1305 and the heating rod 1301, and then blows the hot air into the cavity 1501 of the storage plate 150 through the heat pipe 160, so that the heating rod 1301 heats the storage plate 150.

[0032] The hot air temperature at different heights in the heating chamber 130 will be slightly different. In order to make the temperature of the hot air entering each heat pipe 160 as consistent as possible, a first partition 1302 is set in the heating chamber 130, and then the heating chamber 130 is divided into an isolation chamber 1303 and a heating chamber 1304. The heating rod 1301 is set in the heating chamber 1304, and the first partition 1302 is provided with a through hole that matches the heat pipe 160. The setting of the first partition 1302 makes the hot air sucked into the heat pipe 160 at the same horizontal position, and thus the temperature of the hot air entering each heat pipe 160 is consistent. At the same time, an exhaust pipe connected to the cavity 1501 is provided on the main body of the drying box to facilitate the discharge of airflow in the cavity 1501 of each storage plate 150.

[0033] This embodiment uses gas as the primary heat transfer medium. During use, hot air can easily enter cavity 1501 through heat pipe 160 and then flow directly out of the exhaust pipe. This can result in dead corners within cavity 1501 where hot air cannot flow through, leading to uneven temperature rises across different parts of storage plate 150. To address this issue, multiple guide plates 1502 are provided within cavity 1501. These guide plates 1502 cooperate with the inner wall of storage plate 150 to form an air inlet channel. The air inlet channel is terminated at either end with an air inlet hole 1503 connected to heat pipe 160 and an exhaust hole 1504 connected to the exhaust pipe. Hot air enters cavity 1501 through air inlet holes 1503, passes through the air inlet channel, and then exits through exhaust hole 1504. This avoids the problem of hot air not flowing through dead corners within cavity 1501, improves the heating effect of the hot air on storage plate 150, and extends the hot air's path within cavity 1501, reducing hot air loss.

[0034] A large amount of gas will evaporate during the drying process of the automobile sealing strip. Therefore, an air outlet is set on the top wall of the drying oven body 110 to prevent the odor in the oven from being emitted into the air. An activated carbon filter device 1101 is set at the air outlet to filter and absorb it.

[0035] Example 2

[0036] As described in Example 1, using gas as a heat transfer medium has the following problems: first, the heat transfer efficiency is low; second, a large amount of uncooled hot air is discharged through the exhaust pipe, which not only causes the working environment temperature of the oven to rise, but also wastes a lot of heat.

[0037] Therefore, the present invention provides a heat transfer device using liquid as a heat transfer medium. By setting a second partition 1306 in the heating chamber 130, the second partition 1306 divides the heating chamber 130 into two independent oil chambers 1307 and pipe chambers 1308. The heating rod 1301 heats the heat transfer oil in the oil chamber 1307. One end of the heat transfer pipe 160 passes through the second partition 1306 through the pipe chamber 1308 and is inserted below the liquid level of the heat transfer oil in the oil chamber 1307. The air pump transports the heat transfer oil into the heat transfer pipe 160, thereby achieving the heat transfer oil heating the placement plate 150. By controlling the oil temperature, the placement plate 150 is kept at a relatively stable temperature. Compared with the solution in Example 1, it has the advantages of high heat transfer efficiency and low heat loss. Then, a recovery pipe 1309 is provided on the placement plate 150 for recovering the heat transfer oil to the oil chamber 1307, thereby achieving internal circulation of the heat transfer oil and allowing the oven to operate continuously.

[0038] During the drying and heating process of the automotive sealing strip using the storage plate 150, the sealing strip and the storage plate 150 are attached together. Since the automotive sealing strip is primarily made of rubber and has good sealing properties, a relatively closed space is easily formed between the automotive sealing strip and the storage plate 150. The evaporated gas in this closed space is difficult to escape, which is not conducive to the drying of the automotive sealing strip. Therefore, the protrusion 1505 is provided on the upper surface of the storage plate 150 to avoid the formation of this closed space and allow the evaporated gas from the lower surface of the automotive sealing strip to be discharged smoothly.

[0039] If no protection is provided for the lower surface of the storage plate 150, the heat in the cavity 1501 of the storage plate 150 will dissipate from the lower surface of the storage plate 150. The heat emitted by the upper storage plate 150 will increase the temperature of the automobile sealing strip on the lower storage plate 150, thereby causing the temperature of the automobile sealing strip on the upper storage plate 150 and the lower storage plate 150 to be inconsistent. Therefore, the above problem can be solved by providing an insulating plate 1506 on the lower surface of the storage plate 150.

Claims

1. A spray drying oven for automobile sealing strips, comprising a drying oven body (110), characterized in that: An insulation board (120) is provided in the inner cavity of the oven main body (110), and the insulation board (120) divides the inner cavity of the oven main body (110) into a heating cavity (130) and a drying cavity (140); a plurality of storage boards (150) are provided in the drying cavity (140) from top to bottom, and a cavity (1501) is provided in the storage board (150); a heat pipe (160) connected to the cavity (1501) is provided in the storage board (150), and one end of the heat pipe (160) passes through the insulation board (120) and extends into the heating cavity (130); a heating rod (1301) is provided in the heating cavity (130), and a heat transfer device for introducing heat generated by the heating rod (1301) into the heat pipe (160) is provided in the oven main body (110).

2. The spray drying oven for automobile sealing strips according to claim 1, characterized in that: The heat transfer device comprises a first partition (1302) arranged in the heating chamber (130), wherein the first partition (1302) divides the heating chamber (130) into an isolation chamber (1303) and a heating chamber (1304); the heating rod (1301) is arranged in the heating chamber (1304); the heating chamber (1304) is further provided with a fan (1305) located on the side of the heating rod (1301) far from the heat pipe (160); one end of the heat pipe (160) passes through the isolation chamber (1303) and the first partition (1302) to communicate with the heating chamber (1304); and the oven body (110) is provided with an exhaust pipe (170) that is connected to the cavity (1501).

3. The spray oven for automobile sealing strips according to claim 1, characterized in that: The heat transfer device includes a second partition (1306) arranged in the heating chamber (130), the second partition (1306) divides the heating chamber (1300) into an oil chamber (1307) and a pipe chamber (1308), the oil chamber (1307) stores heat-conducting oil, the heating rod (1301) is arranged in the oil chamber (1307), one end of the heat-conducting pipe (160) passes through the pipe chamber (1308) and through the second partition (1306) and is inserted below the liquid level of the heat-conducting oil in the oil chamber (1307), the heating chamber (130) is also provided with an air pump for pumping the oil in the oil chamber (1307) into the heat-conducting pipe (160), and the storage plate (150) is provided with a recovery pipe (1309) for recovering the heat-conducting oil to the oil chamber (1307).

4. The spray drying oven for automobile sealing strips according to claim 2, characterized in that: A plurality of guide plates (1502) are provided in the cavity (1501) of the storage plate (150), and the guide plates (1502) cooperate with the inner wall of the storage plate (150) to form an air intake channel, and an air intake hole (1503) connected to the heat pipe (160) and an exhaust hole (1504) connected to the exhaust pipe (170) are respectively provided at both ends of the air intake channel.

5. The spray drying oven for automobile sealing strips according to any one of claims 1 to 4, characterized in that: The upper surface of the storage plate (150) is evenly covered with bumps (1505).

6. The spray drying oven for automobile sealing strips according to any one of claims 1 to 4, characterized in that: The lower surface of the storage plate (150) is provided with an insulation plate (1506).

7. The spray drying oven for automobile sealing strips according to any one of claims 1 to 4, characterized in that: An air outlet is provided on the top wall of the main body of the drying chamber (140), and an activated carbon filtering device (1101) is provided in the air outlet.

Images