A device for processing tobacco stem after stem removal

Abstract

The application discloses a processing device for tobacco stem after stem compression, and relates to the technical field of tobacco processing equipment, comprising a stem compression device, a vibration conveying device and a detection device. The conveying channel of the vibration conveying device receives the stem from the discharge port of the stem compression device, and symmetrical inclined guide plates are fixed on the two side guards, which form a converging guide area by extending to the middle part to force the dispersed stems to converge into a continuous material pile. The moisture meter and the temperature meter are arranged directly above the material pile to detect the humidity and temperature of the stem in real time. The application solves the industry problem that the thin stem after stem compression cannot be stably detected, realizes automatic monitoring of the temperature and humidity in the whole process, completely replaces manual sampling, and eliminates data errors and hysteresis.

Description

Technical Field

[0001] This application relates to the field of tobacco processing equipment technology, specifically a device for processing tobacco stems after pressing. Background Technology

[0002] In tobacco processing, the stem pressing process is a crucial step in forming tobacco stems into sticks. The physical state of the pressed sticks, especially their temperature and moisture (humidity) levels, directly affects the quality of subsequent stem cutting, yield, and the final sensory quality of the cigarettes. Therefore, accurate and timely monitoring and control of the temperature and humidity of the pressed sticks are essential for ensuring the stability of the tobacco processing process and product quality.

[0003] However, the industry currently lacks effective online automated detection methods for the temperature and humidity of the stems after pressing. Conventional methods rely on operators periodically performing manual offline sampling and then manually recording and entering the measurement data into the system. This traditional method is not only inefficient and labor-intensive, but also suffers from significant detection lag and unavoidable human error, making it impossible to monitor and control the key process parameters of the stems after pressing in real time, thus becoming a bottleneck restricting the stable improvement of product quality. Crucially, the initial state of the stems falling onto the conveying equipment after pressing is usually dispersed, sparse, and uneven, making it difficult for conventional online detection instruments to directly, stably, and accurately obtain representative temperature and humidity data, becoming a core obstacle to achieving effective online automated detection.

[0004] Therefore, this application proposes a device for processing tobacco stems after pressing, which can stably, reliably, and in real-time automatically detect and collect data on the temperature and moisture content of the tobacco stems after pressing. Utility Model Content

[0005] The main purpose of this application is to provide a device for processing tobacco stems after pressing, which aims to solve the technical problem that online automatic temperature and humidity detection cannot be achieved for the thin and dispersed stems after pressing.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A device for processing tobacco stems after pressing, comprising:

[0008] The stem pressing device has a discharge port at the bottom;

[0009] A vibrating conveyor includes a conveying channel and a pair of guide plates symmetrically fixed on the side guards of the conveying channel; the upstream of the conveying channel is located directly below the discharge port to receive and convey the pressed bar; both guide plates extend inclined towards the middle of the conveying channel, forming a convergence guide zone between them to gather the dispersed bar into a continuous pile.

[0010] The detection equipment includes a moisture meter and a thermometer suspended directly above the continuous stockpile to detect the humidity and temperature of the strands in real time.

[0011] As a further improvement of this application, the testing equipment also includes a column erected on one side of the conveying channel and a crossbeam fixed at one end to the top of the column, the other end of the crossbeam extending directly above the continuous material pile, and the moisture meter and the temperature meter are both mounted on the crossbeam.

[0012] As a further improvement of this application, the angle between the extending direction of the guide plate and the conveying direction of the conveying channel is 30°-60°.

[0013] As a further improvement of this application, the tobacco stem processing device after pressing also includes a PLC controller that is communicatively connected to the moisture meter and the temperature meter respectively.

[0014] The technical solution provided in this application may include the following beneficial effects:

[0015] During use, this application utilizes symmetrically arranged inclined guide plates on a vibrating conveyor to dynamically gather the dispersed and sparse stems after pressing into a continuous and uniform pile, solving the problem of online detection failure caused by material morphology. Furthermore, by directly installing a moisture meter and a thermometer above the pile, it achieves full-process, high-frequency, and uninterrupted real-time monitoring of the temperature and humidity parameters of the pressed stems. This not only completely replaces the traditional manual sampling and testing method, eliminating human error and data recording lag, but also establishes an online quality data closed loop for the pressing process in the tobacco processing industry, providing a reliable basis for real-time control of process parameters. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a device for processing tobacco stems after pressing;

[0018] Figure label:

[0019] 1. Pressing equipment; 11. Discharge port; 2. Vibrating conveyor; 21. Conveying channel; 22. Guard plate; 23. Guide plate; 3. Testing equipment; 31. Moisture meter; 32. Thermometer; 33. Column; 34. Crossbeam. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] Figure 1 An embodiment of a tobacco stem processing apparatus according to this application is shown; see [link to relevant documentation]. Figure 1 In this embodiment, the tobacco stem processing device after pressing includes: pressing device 1, vibrating conveying device 2, and detection device 3.

[0022] Among them, see Figure 1 The pressing device 1 has a discharge port 11 at its bottom. The vibrating conveyor 2 includes a conveying channel 21 and a pair of guide plates 23 symmetrically fixed on the guard plates 22 on both sides of the conveying channel 21. The upstream of the conveying channel 21 is located directly below the discharge port 11 to receive and convey the pressed stems. Both guide plates 23 extend inclined towards the middle of the conveying channel 21, forming a convergence guide zone between them to gather the dispersed stems into a continuous pile, solving the problem of online detection failure caused by the material form. The detection device 3 includes a moisture meter 31 and a thermometer 32 suspended directly above the continuous pile to monitor the temperature and humidity parameters of the pressed stems in real time, at a high frequency and without interruption. This not only completely replaces the traditional manual sampling and testing method, eliminating human error and data recording lag, but also establishes an online quality data closed loop for the pressing process in the tobacco processing industry, providing a reliable basis for real-time control of process parameters.

[0023] Further, see Figure 1 The detection device 3 also includes a column 33 erected on one side of the conveying channel 21, and a crossbeam 34 fixed at one end to the top of the column 33. The other end of the crossbeam 34 extends directly above the continuous material pile. The moisture meter 31 and the temperature meter 32 are both mounted on the crossbeam 34. This design ensures a constant vertical distance between the detection unit and the surface of the material pile, significantly improving the accuracy and stability of temperature and humidity signal acquisition, while avoiding interference with material conveying. Simultaneously, the rigid connection between the column 33 and the crossbeam 34 effectively isolates the high-frequency mechanical vibration of the vibrating conveying device 2, preventing sensor drift or equipment damage caused by continuous vibration, thus ensuring the long-term reliable operation of the online detection system from a physical perspective.

[0024] Optionally, the angle between the extending direction of the guide plate 23 and the conveying direction of the conveying channel 21 is 30° to 60°. This angle range ensures that the dispersed strands are efficiently gathered into a continuous pile of uniform thickness within a limited conveying distance by balancing the material guiding force and the conveying resistance: smaller angles (<30°) cause the edge strands to escape due to insufficient guiding force, while larger angles (>60°) cause material accumulation and blockage due to a sharp increase in resistance; within this optimized range, the guide plate 23 can achieve dynamic constraint and accelerated convergence of the thin layer of strands, while avoiding interference with the inherent throwing motion of the vibrating conveyor, fundamentally ensuring the stability of the pile shape and the continuity of the process required for temperature and humidity detection.

[0025] Furthermore, the tobacco stem processing device after stem pressing also includes a PLC controller that is communicatively connected to a moisture meter 31 and a temperature meter 32. The PLC controller receives the detection signals from the moisture meter 31 and the temperature meter 32 in real time via an industrial bus and performs dynamic comparisons based on preset temperature and humidity threshold ranges: when the continuously collected data exceeds the threshold, an audible and visual alarm is immediately triggered and an anomaly log is generated; simultaneously, the standardized data stream is uploaded to the workshop-level monitoring system in real time to build a quality database for the stem pressing process. This integrated control logic not only completely replaces the manual recording and interpretation process, eliminating the risk of subjective misjudgment, but also achieves millisecond-level response to process anomalies, providing a decision-making basis for real-time intervention on the production line (such as adjusting subsequent stem cutting parameters), forming a closed-loop management from detection to control.

[0026] For example, the working principle of a device for processing tobacco stems after pressing:

[0027] After pressing, the stems fall from the bottom outlet 11 of the pressing equipment 1 into the conveying channel 21 of the vibrating conveyor 2. As the dispersed and sparse stems move forward with the vibrating conveyor, they are dynamically constrained by the symmetrically inclined guide plates 23 and converge towards the center of the channel, forming a continuous pile of material with uniform thickness. The moisture meter 31 and the thermometer 32 located directly above the pile collect the humidity and temperature signals of the stems in real time in a non-contact manner and transmit them to the PLC controller via the industrial bus. The PLC performs threshold comparison and standardization processing on the continuous data stream, synchronously triggers over-limit alarms, and uploads the quality data to the workshop monitoring system, completing the closed-loop management from physical morphology control to online detection.

[0028] In this embodiment, the dynamic forced convergence of dispersed stems by the guide plate 23 fundamentally breaks through the industry's technical bottleneck of unstable detection of thin materials after stem pressing, realizing full-process online monitoring of stem temperature and humidity; combined with non-contact sensing positioning directly above the material pile, a high-frequency real-time data stream is generated to completely replace manual sampling, eliminating subjective errors and quality judgment lag; the synchronously constructed PLC closed-loop control logic compresses the abnormal response speed to the millisecond level, providing an instant process control window for the stem cutting process, significantly improving the yield and sensory quality consistency of cigarette products, and promoting the intelligent transformation of tobacco processing from experience-driven to data-driven.

[0029] It should be noted that the pressing equipment 1 (such as a pressing machine and its internal pressing roller assembly) and the vibrating conveying equipment 2 (such as a vibrating conveyor and its drive mechanism) involved in this application are both implemented using mature existing technologies in the tobacco processing field. Their specific mechanical structures, power parameters, and control logic are not the core improvements of this application. The inventive concept of this application focuses on solving the key technical obstacle of the feasibility of online detection of the pressed tobacco stems. Therefore, the specification and claims only clarify the spatial position and functional connection of the above-mentioned equipment in this solution (such as the connection between the discharge port 11 and the conveying channel 21), without elaborating on their internal structures. Those skilled in the art can directly select suitable pressing machine and vibrating conveyor models to implement this solution based on common knowledge, without affecting the realization effect of the innovative features.

[0030] To further clarify, the moisture meter 31, temperature meter 32, and PLC controller involved in this application all adopt common standard equipment in the field of industrial detection and control. Their core sensing principles (such as infrared spectroscopy analysis, microwave resonance humidity measurement, thermocouple temperature measurement, etc.) and signal processing logic are well-known technologies in this field. The inventive contribution of this patent does not lie in the internal structure or algorithm innovation of these units, but in creating engineering implementation conditions suitable for online detection of tobacco stems after pressing by optimizing the convergence structure and spatial layout of the guide plate 23 (such as positioning it directly above the material pile). Therefore, the specification and claims only clarify the functional roles and communication relationships of the above-mentioned equipment in the system (such as humidity / temperature signal acquisition, threshold comparison, and data upload), without elaborating on their specific circuit design or software protocols. Those skilled in the art can select commercially available mature instruments (such as the German Brabender moisture meter, Fluke temperature meter, and Siemens PLC module) to achieve the same effect according to actual working conditions, without affecting the implementation of the core innovative features of this solution.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for processing tobacco stem-pressed stems, characterized in that, include: The stem pressing device has a discharge port at the bottom; A vibrating conveyor includes a conveying channel and a pair of guide plates symmetrically fixed on the side guards of the conveying channel; the upstream of the conveying channel is located directly below the discharge port to receive and convey the pressed bar; both guide plates extend inclined towards the middle of the conveying channel, forming a convergence guide zone between them to gather the dispersed bar into a continuous pile. The detection equipment includes a moisture meter and a thermometer suspended directly above the continuous stockpile to detect the humidity and temperature of the strands in real time.

2. The apparatus for processing cut stem after stemming of tobacco according to claim 1, wherein, The testing equipment also includes a column erected on one side of the conveying channel and a crossbeam fixed at one end to the top of the column. The other end of the crossbeam extends directly above the continuous material pile. The moisture meter and the temperature meter are both mounted on the crossbeam.

3. The apparatus for processing cut stem after stemming of tobacco according to claim 1, wherein, The angle between the extending direction of the guide plate and the conveying direction of the conveying channel is 30°-60°.

4. The apparatus for processing cut stem after stemming of tobacco according to claim 1, wherein, It also includes a PLC controller that is communicatively connected to the moisture meter and the temperature meter, respectively.

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