Drying barrel with infrared online temperature detection device

Abstract

The utility model discloses a drying barrel with an infrared on-line temperature detection device, which comprises a barrel body, a leather front drying section and a leather back drying section are arranged in the barrel body, a plurality of reversing rollers are arranged between the leather front drying section and the leather back drying section, the leather front drying section comprises an upper compression roller group, and the leather back drying section comprises a lower compression roller group. Upper side rollers are arranged on the two sides of the upper pressing roller set respectively, a plurality of upper hot air mechanisms and a plurality of upper temperature measuring mechanisms are arranged above the leather front face drying section, the leather back face drying section comprises a lower pressing roller set, and lower side rollers are arranged on the two sides of the lower pressing roller set respectively. According to the drying barrel with the infrared on-line temperature detection device, the infrared temperature sensor which can be replaced and maintained on line is utilized to be matched with the upper compression roller set and the lower compression roller set to independently move leather at different positions in the drying barrel at a set speed, accurate temperature control over the leather is achieved, the moisture content in the leather is accurately controlled, and the leather drying efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of drying barrel technology, specifically relating to a drying barrel equipped with an infrared online temperature detection device. Background Technology

[0002] Drying drums are key equipment in synthetic leather production, primarily used for drying synthetic leather by evaporating solvents (such as water and organic solvents) through heating. The drums contain heating devices to raise the internal temperature to a suitable drying temperature and have a temperature control system for precise temperature adjustment and control. Thermocouples or resistance temperature detectors (RTDs) are typically installed inside the drum, converting temperature signals into electrical signals. A common installation method involves welding a tee into a pipe and then welding the sensor base to the pipe. Replacing the sensor requires machine shutdown, and the high accuracy and high temperature of the heat source necessitate precise installation and calibration. Furthermore, due to unsuitable installation methods, common platinum RTDs are typically installed at the heat source inlet, which does not accurately and directly detect the drum temperature / drying temperature of the leather surface. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a drying barrel equipped with an infrared online temperature detection device, including a barrel body, which is horizontally placed. A left end cover is provided at the left end of the barrel body, with a feed inlet on the left end cover. A right end cover is provided at the right end of the barrel body, with a discharge outlet on the right end cover. The barrel body contains a leather front drying section and a leather back drying section, with the leather front drying section located above the leather back drying section. Several reversing rollers are provided between the leather front drying section and the leather back drying section. The leather front drying section includes an upper pressure roller group, with upper side rollers on both sides of the upper pressure roller group. The upper pressure roller group includes an upper driving roller and an upper driven roller located below the upper driving roller. The upper driving roller is driven to rotate by an upper motor. Above the leather front drying section are several sets of upper hot air mechanisms and several sets of upper temperature measuring mechanisms. The upper hot air mechanism includes a hot air pipe located inside the barrel body. The equipment includes a hot air box located outside the barrel, connected to a hot air pipe. The hot air pipe has several hot air holes facing the front of the leather. The upper temperature measuring mechanism includes several infrared temperature sensors. The barrel has several mounting tubes extending into the barrel. The infrared temperature sensors are located inside the mounting tubes and facing the front of the leather. An outer cover is fixedly connected to the upper end of the infrared temperature sensor. The outer cover covers the mounting tube and is threadedly connected to the mounting tube. The leather back drying section includes a lower pressure roller group. Lower side rollers are provided on both sides of the lower pressure roller group. The structure of the lower pressure roller group is the same as that of the upper pressure roller group. Below the leather back drying section, there are several lower hot air mechanisms and lower temperature measuring mechanisms. The lower hot air mechanisms have the same structure as the upper hot air mechanisms. The hot air holes of the hot air pipes in the lower hot air mechanisms face the back of the leather. The lower temperature measuring mechanisms have the same structure as the upper temperature measuring mechanisms. The infrared temperature sensors in the lower temperature measuring mechanisms face the back of the leather.

[0004] As a preferred embodiment of the above technical solution, a feed roller is provided at the feed inlet, the height of the feed roller is lower than the height of the upper side roller, and a leather inclined section is formed between the feed roller and the adjacent upper side roller. A set of upper hot air mechanism is provided above the leather inclined section, and a set of lower hot air mechanism is provided below the leather inclined section.

[0005] As a preferred embodiment of the above technical solution, the number of reversing rollers is two. The two ends of the reversing roller near the discharge port are rotatably mounted on the slider. The slider is slidably mounted on the vertical slide rail. A spring is provided above the slider, and the spring is fixedly connected to the barrel body.

[0006] As a preferred embodiment of the above technical solution, the hot air box is provided with an air inlet at one end and an air outlet at the other end. The air outlet is connected to a corresponding hot air pipe. A fan and a resistance wire heater are installed inside the hot air box, with the resistance wire heater located between the fan and the air outlet.

[0007] As a preferred embodiment of the above technical solution, the hot air box is equipped with a filter screen, which is located between the air inlet and the fan.

[0008] The beneficial effects of this utility model are: the drying drum equipped with an infrared online temperature detection device utilizes an infrared temperature sensor that can be replaced and maintained online, and works in conjunction with the upper and lower pressure roller groups to move leather at different positions inside the drying drum at different speeds, thereby achieving precise temperature control of the leather, accurately controlling the moisture content of the leather, and improving the leather drying efficiency. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0010] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0011] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0012] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0013] like Figure 1As shown, the drying barrel equipped with an infrared online temperature detection device includes a barrel body 1, which is horizontally placed. A left end cover 2 is located at the left end of the barrel body 1, with a feed inlet 3 on the left end cover 2. A right end cover 4 is located at the right end of the barrel body 1, with a discharge outlet 5 on the right end cover 4. Inside the barrel body 1, there is a leather front drying section 6 and a leather back drying section 7. The leather front drying section 6 is located above the leather back drying section 7. Several reversing rollers 8 are arranged between the leather front drying section 6 and the leather back drying section 7. The leather front drying section 6 includes an upper pressure roller group 9, with upper side rollers 10 on both sides of the upper pressure roller group 9. The upper pressure roller group 9 includes an upper driving roller 11 and an upper driven roller 12 located below the upper driving roller 11. The upper driving roller 11 is driven to rotate by an upper motor. Above the leather front drying section 6, there are several sets of upper hot air mechanisms and several sets of upper temperature measuring mechanisms. The upper hot air mechanism includes a hot air pipe 13 located inside the barrel body 1 and a hot air box 14 located outside the barrel body 1. The hot air box 14 is connected to the hot air pipe 13. The hot air pipe 13 has several hot air holes facing the front of the leather. The upper temperature measuring mechanism includes several infrared temperature sensors 15. The barrel 1 has several mounting pipes 16 extending into the barrel 1. The infrared temperature sensors 15 are located in the mounting pipes 16 and facing the front of the leather. The upper end of the infrared temperature sensor 15 is fixedly connected to an outer cover 17. The outer cover 17 covers the mounting pipes 16 and is threadedly connected to the mounting pipes 16. The leather back drying section 7 includes a lower pressure roller group 18. The lower pressure roller group 18 has lower side rollers 19 on both sides. The structure of the lower pressure roller group 18 is the same as that of the upper pressure roller group 9. Below the leather back drying section 7, there are several lower hot air mechanisms and lower temperature measuring mechanisms. The lower hot air mechanisms have the same structure as the upper hot air mechanisms. The hot air holes of the hot air pipe 13 in the lower hot air mechanism face the back of the leather. The lower temperature measuring mechanism has the same structure as the upper temperature measuring mechanism. The infrared temperature sensors 15 in the lower temperature measuring mechanism face the back of the leather. The upper and lower heating mechanisms control the temperature of the leather's front and back sides at different locations, facilitating rapid moisture evaporation and extending the leather's residence time in the drying drum. The upper pressure roller group 9 and the lower pressure roller group 18 provide the driving force for the leather's movement within the drying drum. The lower and upper temperature measuring mechanisms accurately measure the leather's surface temperature, allowing for easy adjustment of the upper drive roller 11's rotation speed and control of the leather's residence time within the drying drum, thereby precisely controlling the leather's moisture content.

[0014] Furthermore, a feed roller 20 is provided at the feed inlet 3. The height of the feed roller 20 is lower than the height of the upper side roller 10. A leather inclined section 21 is formed between the feed roller 20 and the adjacent upper side roller 10. An upper hot air mechanism is provided above the leather inclined section 21, and a lower hot air mechanism is provided below the leather inclined section 21. Hot air is blown simultaneously on both sides of the leather at the leather inclined section 21 to quickly blow away the moisture on the leather surface.

[0015] Furthermore, there are two reversing rollers 8. The reversing roller 8 near the discharge port 5 is rotatably mounted on the slider 24 at both ends. The slider 24 is slidably mounted on the vertical slide rail 22. A spring 23 is provided above the slider 24, and the spring 23 is fixedly connected to the barrel body 1. The reversing roller 8 near the discharge port 5 presses down on the leather, keeping the leather taut.

[0016] Furthermore, the hot air box 14 has an air inlet 25 at one end and an air outlet 26 at the other end, with the air outlet 26 connected to the corresponding hot air pipe 13. A fan 27 and a resistance wire heater 28 are installed inside the hot air box 14, with the resistance wire heater 28 located between the fan 27 and the air outlet 26. An infrared temperature sensor 15 can also be installed at the air outlet 26 to control the temperature of the hot air blown out of the hot air pipe 13.

[0017] Furthermore, the hot air box 14 is equipped with a filter 29, which is located between the air inlet 25 and the fan 27. The filter 29 prevents floating objects in the incoming air from contaminating the leather surface.

[0018] It is worth mentioning that the technical features of the fan, resistance wire heater, infrared temperature sensor, motor and other technologies involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0019] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A drying oven equipped with an infrared online temperature detection device, characterized in that, The device includes a horizontally positioned barrel. A left end cover with a feed inlet is located on the left end of the barrel, and a right end cover with a discharge outlet is located on the right end. Inside the barrel are a leather front drying section and a leather back drying section, with the front drying section positioned above the back drying section. Several reversing rollers are positioned between the front and back drying sections. The front drying section includes an upper pressure roller assembly with upper side rollers on both sides. The upper pressure roller assembly includes an upper driving roller and an upper driven roller located below the upper driving roller. The upper driving roller is driven by an upper motor. Above the front drying section are several sets of upper hot air mechanisms and several sets of upper temperature measuring mechanisms. The upper hot air mechanism includes a hot air pipe inside the barrel and a hot air box outside the barrel, with the hot air box connected to the hot air pipe. The hot air pipe has several hot air holes facing the front of the leather. The upper temperature measuring mechanism includes several infrared temperature sensors. The barrel body has several mounting tubes extending into the barrel body. The infrared temperature sensors are located inside the mounting tubes and facing the front of the leather. An outer cover is fixedly connected to the upper end of the infrared temperature sensor. The outer cover covers the mounting tube and is threadedly connected to the mounting tube. The leather back drying section includes a lower pressure roller group. Lower side rollers are respectively provided on both sides of the lower pressure roller group. The structure of the lower pressure roller group is the same as that of the upper pressure roller group. Below the leather back drying section, there are several lower hot air mechanisms and lower temperature measuring mechanisms. The lower hot air mechanisms are the same as the upper hot air mechanisms. The hot air holes of the hot air pipes in the lower hot air mechanisms face the back of the leather. The lower temperature measuring mechanisms are the same as the upper temperature measuring mechanisms. The infrared temperature sensors in the lower temperature measuring mechanisms face the back of the leather.

2. The drying oven with an infrared online temperature detection device as described in claim 1, characterized in that, The feed inlet is equipped with a feed roller, the height of which is lower than that of the upper roller. A leather inclined section is formed between the feed roller and the adjacent upper roller. An upper heating mechanism is provided above the leather inclined section, and a lower heating mechanism is provided below the leather inclined section.

3. The drying oven with an infrared online temperature detection device as described in claim 1, characterized in that, The number of reversing rollers is two. The two ends of the reversing roller near the discharge port are rotatably mounted on the slider. The slider is slidably mounted on the vertical slide rail. A spring is provided above the slider, and the spring is fixedly connected to the barrel body.

4. The drying oven with an infrared online temperature detection device as described in claim 1, characterized in that, The hot air box has an air inlet at one end and an air outlet at the other end. The air outlet is connected to a corresponding hot air pipe. A fan and a resistance wire heater are installed inside the hot air box. The resistance wire heater is located between the fan and the air outlet.

5. The drying oven with an infrared online temperature detection device as described in claim 4, characterized in that, The hot air box is equipped with a filter screen, which is located between the air inlet and the fan.

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