Data acquisition device for cut tobacco drying process

Abstract

The utility model discloses a data acquisition device for a cut tobacco drying process, and belongs to the technical field of cut tobacco data acquisition. The device comprises a cut tobacco drying cylinder and a supporting rod installed in the cut tobacco drying cylinder. The supporting rod is in an inverted V shape, and a sensor is installed along an opening of the inverted V shape. The supporting rod and the cut tobacco drying cylinder are coaxially installed, one end of the supporting rod is connected with square steel, and the other end of the supporting rod is connected with a steel pipe. A hanging bar fixing plate is installed on the inlet end face of the cut tobacco drying cylinder, a square steel fixing plate is installed through the hanging bar fixing plate, a first through hole is formed in the center of the square steel fixing plate, and the square steel is installed in the first through hole; a steel pipe fixing plate is installed on the rotating seat on the outlet end face of the cut tobacco drying cylinder, a second through hole is formed in the center of the steel pipe fixing plate, a self-aligning bearing is installed in the second through hole, and the steel pipe is installed in the self-aligning bearing. According to the utility model, all key parameters of the cut tobacco drying process can be comprehensively, accurately and stably acquired.

Description

Technical Field

[0001] This utility model relates to the field of tobacco shred data acquisition technology, and in particular to a data acquisition device for the tobacco drying process. Background Technology

[0002] Data acquisition inside the tobacco drying cylinder is difficult, making it impossible to accurately grasp the changes in the state of the tobacco inside the cylinder. Furthermore, the data acquisition scheme suffers from problems such as significant modifications to the hardware structure, poor sensor applicability, and insufficient data accuracy and stability.

[0003] Previously, the internal conditions of the drying cylinder were mainly inferred by measuring the state of the tobacco at the inlet and outlet, making it difficult to obtain detailed parameters such as actual temperature, humidity, wall temperature, and vibration. Regarding data acquisition, some solutions mount traditional sensors on support rods. As the support rod rotates, tobacco tends to accumulate in the sensor wiring. In the high-temperature, high-humidity, and enclosed environment of the drying cylinder, sensor wire entanglement and corrosion are also common problems. Traditional self-aligning bearings directly fix the sensor support rod to the drying cylinder, with the inlet end of the support rod completely fixed. Vibration from cylinder rotation causes long-term friction on the support rod, posing a risk. Furthermore, existing solutions require significant modifications to the hardware structure of the drying cylinder equipment, making installation and maintenance inconvenient and costly. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a data acquisition device for the wire drying process. This device optimizes the sensor installation method, improves the stability and service life of the sensor, reduces the failure rate, and enables comprehensive, accurate, and stable acquisition of key parameters of the wire drying process.

[0005] To achieve the above objectives, this utility model employs the following technical solution:

[0006] This utility model provides a data acquisition device for the wire drying process, including a wire drying cylinder and a support rod installed inside the wire drying cylinder;

[0007] The support rod is in the shape of an inverted V, and a sensor is installed along the opening of the inverted V;

[0008] One end of the support rod is connected to the rotating surface, and the other end is connected to the non-rotating surface.

[0009] In this invention, the support rod is inverted V-shaped, which ensures that the tobacco does not accumulate on the support rod. The sensor is installed at the tip of the V-shape, which ensures that the tobacco does not get tangled with the sensor wire, reducing corrosion. The support rod is not directly connected to the drying cylinder, which will not damage the equipment, nor will it cause the risk of long-term friction caused by the vibration of the cylinder rotation due to the incomplete fixing of the inlet end of the support rod.

[0010] Optionally, the non-rotating surface is the inlet end face of the drying cylinder, and the rotating surface is the outlet end face of the drying cylinder. The inlet end being a non-rotating surface ensures the support rod remains stable and does not rotate with the drying cylinder, while the outlet end being a rotating surface, via a rotating seat, ensures the support rod is fixed and does not rotate with the drying cylinder.

[0011] Optionally, the inverted V-shaped angle of the support rod is 30°, and a sensor is installed vertically downward along the opening of the inverted V-shape.

[0012] Optionally, one end of the support rod is connected to a square steel bar, and the other end is connected to a steel pipe;

[0013] The non-rotating surface is equipped with a suspension rod fixing plate, and a square steel fixing plate is installed through the suspension rod fixing plate. A first through hole is opened in the center of the square steel fixing plate, and the square steel is installed in the first through hole.

[0014] A steel pipe fixing plate is installed on the rotating seat of the rotating surface. A second through hole is opened in the center of the steel pipe fixing plate, and a self-aligning bearing is installed in the second through hole. The steel pipe is installed in the self-aligning bearing. Optionally, the suspension rod fixing plate fixes the angle steel body through suspension rods, and the square steel fixing plate is installed on the angle steel body.

[0015] Optionally, the angle steel body includes an inverted angle steel, a triangular reinforcing rib installed vertically on the two parallel sides of the inverted angle steel, and a square reinforcing rib connecting the non-parallel sides of the inverted angle steel and the triangular reinforcing rib;

[0016] The square steel fixing plate is installed on the opening side of the C-shaped angle steel and is connected to the triangular reinforcing rib and the square reinforcing rib respectively.

[0017] Optionally, the steel pipe fixing plate is connected to the flange on the rotating seat by screws.

[0018] Optionally, a tube guard is also included, which is installed on the inlet side of the drying tube.

[0019] Optionally, the sensor includes a temperature sensor and a humidity sensor;

[0020] The temperature sensor has a measurement range of [-70, 260] ℃, and the humidity sensor has a measurement range of [0, 100%] RH.

[0021] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0022] The support rod of this utility model is inverted V-shaped, which can ensure that the tobacco will not accumulate on the support rod. The sensor is installed at the tip of the V-shape, which can ensure that the tobacco will not get tangled with the sensor wire, reducing corrosion. The support rod is not directly connected to the drying cylinder, which will not damage the equipment, nor will it cause the risk of long-term friction of the support rod due to vibration caused by the rotation of the cylinder if the inlet end of the support rod is not completely fixed. The overall hardware structure design is easy to install and maintain. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of the data acquisition device for the wire drying process of this utility model in one embodiment;

[0024] Figure 2 As shown Figure 1 The large image at point A in the middle;

[0025] Figure 3 As shown Figure 1 The large image at point B in the middle;

[0026] Figure 4 As shown Figure 1 The large image at point C;

[0027] In the diagram: 1-Cylinder protective cover; 2-Drying cylinder; 3-Support rod; 4-Square steel; 5-Steel pipe; 6-Hanging rod fixing plate; 7-Hanging rod; 8-I-shaped angle steel; 9-Triangular reinforcing rib; 10-Square reinforcing rib; 11-Square steel fixing plate; 12-Sensor; 13-Rotating seat; 14-Steel pipe fixing plate; 15-Self-aligning bearing. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features therein are detailed descriptions of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features therein can be combined with each other.

[0029] The term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0030] Example 1

[0031] like Figure 1As shown in the figure, this embodiment introduces a data acquisition device for the wire drying process, including a protective cover 1, a wire drying cylinder 2, a support rod 3, a square steel 4, a steel pipe 5, a suspension rod fixing plate 6, a suspension rod 7, an angle steel 8, a triangular reinforcing rib 9, a square reinforcing rib 10, a square steel fixing plate 11, a probe 12, a rotating seat 13, a steel plate fixing plate 14, and a self-aligning bearing 15.

[0032] The protective cover 1 is installed at the inlet end of the drying cylinder 2 to stabilize the temperature of the drying cylinder 2 at a preset value. The support rod 3 is installed inside the drying cylinder 2 and is coaxially installed with the drying cylinder 2.

[0033] Considering that using a circular tube makes it easy for tobacco to accumulate above the front and rear ends of the support rod, such as Figure 3 As shown, in this embodiment, the support rod 3 is made of two stainless steel plates welded at 30° with the opening facing down to form an inverted "V" shape to prevent tobacco shreds from accumulating. One end of the support rod 3 is connected to a square steel 4, and the other end is connected to a steel pipe 5.

[0034] In one specific embodiment, the support rod 3 is 13m long, the square steel 4 is 300mm long, and its width and height are both 40mm, and the steel pipe is 30mm long.

[0035] Sensor 12 is installed vertically downwards along the inverted V-shaped opening. The wiring of sensor 12 can be fixed in the inverted V-shaped support rod 3 to ensure that the wiring of sensor 12 will not get tangled with tobacco during the rotation of the drying cylinder 2. Sensor 12 includes a temperature sensor and a humidity sensor. The temperature sensor has a measurement range of [-70, 260] ℃, and the humidity sensor has a measurement range of [0, 100%] RH. The temperature measurement accuracy is ±0.5℃ when 0-50℃, and the humidity measurement accuracy is ±2%RH when 20%-95% RH, ensuring accurate measurement of temperature and humidity in the harsh environment inside the drying cylinder.

[0036] Since the center of the inlet end face of the wire drying cylinder 2 is the vibrating groove opening, it cannot be directly drilled. Therefore, if Figure 2 As shown, a suspension rod fixing plate 6 is directly welded to the upper part of the inlet end face of the wire drying cylinder 2. The suspension rod fixing plate 6 fixes the angle steel body through the suspension rod 7. The angle steel body includes a C-shaped angle steel 8, a triangular reinforcing rib 9 vertically installed on the two parallel sides of the C-shaped angle steel 8, and a square reinforcing rib 10 connecting the non-parallel sides of the C-shaped angle steel 8 and the triangular reinforcing rib 9.

[0037] The square steel fixing plate 11 is installed on the open side of the C-shaped angle steel 8 and is connected to the triangular reinforcing rib 9 and the square reinforcing rib 10 respectively;

[0038] A first through hole is provided in the center of the square steel fixing plate 11, and the square steel 4 is installed in the first through hole.

[0039] In one specific embodiment, the suspension rod fixing plate 6 is a steel sheet with a length of 260mm, and the square steel fixing plate 11 is a stainless steel plate with a thickness of 6mm.

[0040] Since the rotating seat 13 at the center of the outlet end face of the wire drying cylinder 2 is not fixed with a nut, direct welding would damage the equipment. Therefore, Figure 4 As shown, take one screw from each of the three flanges of the rotating seat 13 to fix the steel pipe fixing plate 14. As can be seen from the C' diagram, the steel pipe fixing plate 14 has a second through hole in the center. The self-aligning bearing 15 is installed in the second through hole, and the steel pipe 5 is installed in the self-aligning bearing 15.

[0041] In this embodiment, the steel pipe fixing plate 14 is circular and is fixed by the three flanges of the rotating seat 13.

[0042] The support rods, square steel, steel pipes, hanging rod fixing plates, square steel fixing plates, and steel pipe fixing plates are all made of stainless steel.

[0043] That is, the square steel 4 connected to the support rod 3 is fixed through the inlet end face of the wire drying cylinder 2, and the round tube 5 connected to the support rod 3 is fixed through the outlet end face of the wire drying cylinder 2.

[0044] In existing technologies, the support rod is made of stainless steel round tube, which causes the tobacco shreds, which are moist, to stick together and repeatedly accumulate on the support rod, affecting the quality of the tobacco drying process. In addition, the sensor transmission line is directly wrapped around the steel tube and exposed to the outside, making it easy to be corroded by the environment inside the tube. In this embodiment, two stainless steel plates are welded at a 30° angle, with the opening facing down to form an inverted "V" shape. The stainless steel plates are also polished smooth to prevent tobacco shreds from accumulating. The sensor transmission line is fixed to the angle between the steel plates to reduce corrosion.

[0045] The fixing plate and the square steel support rod are directly welded to the inlet end face of the wire drying cylinder. This avoids the problem of directly opening holes in the cylinder wall and welding the sleeve to insert the support rod directly, which not only damages the equipment but also causes long-term friction risk to the support rod due to the vibration caused by the cylinder rotation because the support rod is not completely fixed at the inlet end face of the wire drying cylinder.

[0046] In one specific embodiment, the data acquisition method for the wire drying process includes the following steps:

[0047] During production, the drying cylinder 2 rotates.

[0048] A suspension rod fixing plate 6 is welded to the upper part of the inlet end face of the wire drying cylinder 2. The suspension rod fixing plate 6 fixes the suspension rod 4. The suspension rod 7 is fixed to a square steel fixing plate 11 by an angle steel body. A through hole is opened in the center of the square steel fixing plate 11. The square steel 4 connected to the support rod 3 is directly welded to the through hole on the square steel fixing plate 11 to keep the support rod 3 stable and not rotate with the wire drying cylinder 2. The outlet end face of the wire drying cylinder 2 is connected to the steel pipe 5 through the rotating seat 13, so that the support rod 3 is fixed and the support rod 3 will not rotate with the wire drying cylinder 2.

[0049] Five sensors are evenly installed on support rod 3 to collect temperature and humidity data inside the cylinder.

[0050] The sensor transmits temperature and humidity data via an RS485 interface using the Modbus RTU protocol. For some analog temperature and humidity data, the data is first converted by an analog-to-RS485 communication module before transmission.

[0051] Temperature and humidity data are converted into Modbus TCP protocol via a multi-channel serial server, connected to a switch, and then uploaded to the KEPSERVER platform via a data acquisition gateway, achieving centralized data acquisition and transmission.

[0052] The entire data acquisition system consists of a sensing layer, an acquisition layer, a transmission layer, and a service layer. The sensing layer contains various sensors responsible for collecting process parameters of each system in the wire drying process; the acquisition layer collects data from the sensing layer and performs preliminary processing through devices such as data acquisition gateways and serial servers; the transmission layer uses on-site WIFI or wired networks to transmit data from the acquisition layer to the service layer; the service layer interfaces with the upper-level system to realize data storage, analysis, and application.

[0053] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A data acquisition device for a wire drying process, characterized in that, Includes a wire drying cylinder and a support rod installed inside the wire drying cylinder; The support rod is in the shape of an inverted V, and a sensor is installed along the opening of the inverted V. The support rod is coaxially installed with the drying cylinder. One end of the support rod is rotatably connected to the rotating surface of one end of the drying cylinder, and the other end is fixedly connected to the non-rotating surface of one end of the drying cylinder.

2. The data acquisition device for the wire drying process according to claim 1, characterized in that, The non-rotating surface is the inlet end face of the wire drying cylinder, and the rotating surface is the outlet end face of the wire drying cylinder.

3. The data acquisition device for the wire drying process according to claim 1, characterized in that, The inverted V-shaped angle of the support rod is 30°, and a sensor is installed vertically downward along the opening of the inverted V-shape.

4. The data acquisition device for the wire drying process according to claim 1, characterized in that, One end of the support rod is connected to a square steel bar, and the other end is connected to a steel pipe; The non-rotating surface is equipped with a suspension rod fixing plate, and a square steel fixing plate is installed through the suspension rod fixing plate. A first through hole is opened in the center of the square steel fixing plate, and the square steel is installed in the first through hole. A steel pipe fixing plate is installed on the rotating seat of the rotating surface. A second through hole is opened in the center of the steel pipe fixing plate, and a self-aligning bearing is installed in the second through hole. The steel pipe is installed in the self-aligning bearing.

5. The data acquisition device for the wire drying process according to claim 4, characterized in that, The suspension rod fixing plate fixes the angle steel body through the suspension rod, and the square steel fixing plate is installed on the angle steel body.

6. The data acquisition device for the wire drying process according to claim 5, characterized in that, The angle steel body includes an inverted angle steel, a triangular reinforcing rib installed vertically on the two parallel sides of the inverted angle steel, and a square reinforcing rib connecting the non-parallel sides of the inverted angle steel and the triangular reinforcing rib; The square steel fixing plate is installed on the opening side of the C-shaped angle steel and is connected to the triangular reinforcing rib and the square reinforcing rib respectively.

7. The data acquisition device for the wire drying process according to claim 4, characterized in that, The steel pipe fixing plate is connected to the flange on the rotating seat by screws.

8. The data acquisition device for the wire drying process according to claim 1, characterized in that, It also includes a tube protective cover, which is installed on the inlet side of the drying tube.

9. The data acquisition device for the wire drying process according to claim 1, characterized in that, The sensors include a temperature sensor and a humidity sensor; The temperature sensor has a measurement range of [-70, 260] ℃, and the humidity sensor has a measurement range of [0, 100%] RH.

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