Automatic cleaning device for leaf feeding outlet moisture detection system

Abstract

The utility model relates to the technical field of cigarette leaf charging machines, and discloses an automatic cleaning device of a leaf charging outlet moisture detection system, which comprises an infrared moisture meter arranged at a leaf charging outlet; the compressed air source, the pressure regulating valve, the pressure gauge and the nozzle are communicated in sequence; the spray head is over against a probe mirror surface of the infrared moisture meter; the infrared moisture meter, the pressure regulating valve and the pressure gauge are all in communication connection with the moisture detection system; the moisture detection system comprises an acquisition module, a storage module and an error control module; the acquisition module is used for receiving a measured moisture value of the infrared moisture meter and a measured pressure value of the pressure gauge, the storage module is used for storing a preset moisture value and a preset pressure value corresponding to the preset moisture value, and the error control module is used for controlling the infrared moisture meter according to an error result of the measured moisture value and the preset moisture value. And generating a pressure value error control signal, and correspondingly sending the pressure value error control signal to the pressure regulating valve to regulate the pressure value of the compressed air. The problem that in the prior art, an infrared moisture meter is insufficient in moisture content detection accuracy of materials at a leaf feeding outlet is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco leaf blade material adding machine technical field especially relates to a blade material adding outlet moisture detection system automatic cleaning device. BACKGROUND

[0002] Blade material adding is an important process in the production and processing of tobacco, according to the formula requirement, namely according to the material adding proportion, material liquid is applied to tobacco, and through material adding process treatment, the irritability and miscellaneous gas of tobacco are reduced, and the sensory quality and physical characteristics of tobacco are improved.The process flow of blade material adding is as follows: after being measured by electronic belt scale, the blade is sent into the roller by vibration conveyor, when the blade reaches the nozzle at the feeding end of the roller, the material liquid supplied by the metering pump is atomized and sprayed on the blade by a pair of double medium nozzles under the action of steam, the blade is constantly turned over, stirred and transported to the outlet end along with the rotation of the cylinder body and the action of the harrow in the cylinder, so that the blade is mixed with the sprayed misty material liquid, and the purpose of adding material to the blade is achieved.The moisture content of blade material adding outlet is an important process index in the production link of cut tobacco, which directly affects the quality of finished cut tobacco.

[0003] In the prior art, an infrared moisture meter is usually used to detect the moisture content of the material at the blade material adding outlet in real time, the infrared moisture meter is mostly installed at the outlet of the temperature and humidity increasing equipment, and the air humidity is relatively large, so that water droplets are more likely to condense on the mirror surface of the probe of the infrared moisture meter, which directly affects the accuracy of the detection of the infrared moisture meter. UTILITARIAN CONTENT

[0004] Therefore, the utility model aims at providing a blade material adding outlet moisture detection system automatic cleaning device to solve the problem of insufficient detection accuracy of the moisture content of the material at the blade material adding outlet by the infrared moisture meter in the prior art.

[0005] The utility model solves the above technical problem through the following technical scheme: a blade material adding outlet moisture detection system automatic cleaning device, comprising:

[0006] An infrared moisture meter arranged at the blade material adding outlet;

[0007] A compressed air source, a pressure regulating valve, a pressure gauge and a spray head are sequentially communicated; the spray head is opposite to the mirror surface of the probe of the infrared moisture meter; the infrared moisture meter, the pressure regulating valve and the pressure gauge are in communication connection with a moisture detection system;

[0008] The moisture detection system comprises a collection module, a storage module and an error control module;

[0009] The collection module is used for receiving the measured moisture value of the infrared moisture meter and the measured pressure value of the pressure gauge,

[0010] The storage module is configured to store a preset moisture value and a preset pressure value corresponding to the preset moisture value,

[0011] The error control module is configured to generate a pressure value error control signal according to an error result of the measured moisture value and the preset moisture value, and send the pressure value error control signal to the pressure regulating valve to adjust the compressed air pressure value.

[0012] Optionally, the moisture detection system is a PLC control system.

[0013] Optionally, the compressed air source, the pressure regulating valve, the pressure gauge and the spray head are connected through PU air pipes.

[0014] Optionally, the pressure gauge is an electric contact pressure gauge.

[0015] Optionally, the pressure regulating valve is an electric gas pressure regulating valve.

[0016] The utility model discloses the beneficial effects of:

[0017] The utility model discloses a moisture detector and a pressure gauge are set up to obtain the measured moisture value and the measured pressure value, and the error control module generates a pressure value error control signal according to an error result of the measured moisture value and the preset moisture value, and sends the pressure value error control signal to the pressure regulating valve to adjust the compressed air pressure value, so that the pressure value and the moisture value of the compressed air are always within the range of error control, the dryness and the cleanliness of the probe mirror are guaranteed, thereby reducing the interference of the environment on the measurement of the moisture detector, and the stability and the accuracy of the moisture detection are guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the structure schematic diagram of the utility model,

[0019] Fig. 2 It is the flow schematic diagram of the utility model.

[0020] Among them, 1-infrared moisture meter, 2-compressed air source, 3-pressure regulating valve, 4-pressure gauge, 5-spray head. DETAILED DESCRIPTION

[0021] The advantages and effects of the present application can be understood by those skilled in the art from the disclosure of the present application. It should be noted that the drawings provided in the following examples are only used for illustrative purposes, and the drawings represent only schematic diagrams, not physical drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components, and in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms used to describe the positional relationship in the drawings are only used for illustrative purposes, and cannot be construed as limiting the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] As shown in Figs. 1-2 , it is an automatic cleaning device of a blade feeding outlet moisture detection system of the present application, comprising:

[0024] An infrared moisture meter 1 is arranged at the blade feeding outlet; it can be understood that it can also be arranged at the outlet of the leaf tobacco drying machine, the mixed tobacco and flavoring outlet and other moisture detection process points.

[0025] A compressed air source 2, a pressure regulating valve 3, a pressure gauge 4 and a spray head 5 are sequentially connected, and the spray head 5 is opposite to the probe mirror surface of the infrared moisture meter 1; the infrared moisture meter 1, the pressure regulating valve 3 and the pressure gauge 4 are all in communication connection with the moisture detection system, which can be connected by communication lines or by existing wireless communication connection such as Bluetooth.

[0026] In this embodiment, the moisture detection system stores a plurality of groups of data of preset moisture values and corresponding preset pressure values. It should be understood that the preset moisture values and the preset pressure values corresponding to the preset moisture values are detected by a large number of sampling, so as to find out the air pressure values matched with different environmental and different target moisture detection values, and then input into the moisture detection system, so as to realize the preset of the air pressure values for different process points and different moisture meter probe heads.

[0027] In the embodiment, the moisture detection system is an existing PLC control system, including a PLC controller, a power supply and other necessary elements.

[0028] In the embodiment, the moisture detection system includes a collection module, a storage module and an error control module; the collection module is used for receiving a measured moisture value of the infrared moisture meter and a measured pressure value of the pressure gauge; the storage module is used for storing a preset moisture value and a preset pressure value corresponding to the preset moisture value; and the error control module is used for generating a pressure value error control signal according to an error result of the measured moisture value and the preset moisture value, and sending the pressure value error control signal to the pressure regulating valve to adjust the compressed air pressure value.

[0029] By adding the above modules, for high-moisture materials, the error between the measured moisture value (the true moisture value) and the preset moisture value is not greater than 0.5%; for low-moisture materials, the error between the measured moisture value and the preset moisture value is not greater than 0.3%. At the same time, when the measured moisture value is within the error range, the fluctuation rate of the corresponding measured pressure value (the true pressure value) compared with the preset pressure value is less than ±5%.

[0030] It should be understood that the preset moisture value and the preset pressure value corresponding to the preset moisture value are detected by a large number of sampling, so as to find out the air pressure value matched with different environmental and different target moisture detection values, and then the air pressure value is input into the moisture detection system, so as to realize the preset of the air pressure value for different process points and different brand moisture meter probes.

[0031] It should be understood that the pressure gauge 4 is an electric contact pressure gauge, and the pressure regulating valve 3 is an electric gas pressure regulating valve, which can be obtained through a commercial channel.

[0032] In the embodiment, the compressed air source 2, the pressure regulating valve 3, the pressure gauge 4 and the spray head 5 are connected through a PU air pipe, and all are sealed to prevent compressed air leakage. The compressed air source 2 can use the existing compressed air pipeline in the silk making workshop, and does not need to be separately provided with an air compressor.

[0033] The working principle of the utility model is as follows:

[0034] When the automatic cleaning device is used, the spray head 5 is connected to the compressed air controlled by the pressure regulating valve 3, the compressed air of the spray head 5 blows the probe mirror surface of the infrared moisture meter 1, ensures the dryness and cleanliness of the probe mirror surface, prevents the probe mirror surface from condensing water droplets or accumulating dust, and ensures the accuracy of the infrared moisture meter 1 in detecting the moisture content of the material.

[0035] In the process, the appropriate preset pressure value and preset moisture value can be determined through large sample data collection feedback, and imported into the storage module as the formula parameters for management, at the same time, the measurement moisture value and measurement pressure value results collected by the acquisition module, the error control module generates a pressure value error control signal according to the error result of the measurement moisture value and the preset moisture value, and sends it to the pressure regulating valve to adjust the compressed air pressure value, controls the pressure regulating valve 3 to adjust the actual compressed air pressure value, to ensure that the measurement moisture value is within the error range. At the same time, the control pressure value is within the allowable fluctuation range.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application. The technical, shape and structure parts not described in detail should be covered in the scope of the claims of the present application.

Claims

1. An automatic cleaning device for a blade feeding outlet moisture detection system, characterized in that, include: An infrared moisture meter is installed at the blade feed outlet; The compressed air source, pressure regulating valve, pressure gauge and nozzle are connected in sequence; The nozzle is directly facing the probe mirror of the infrared moisture meter; the infrared moisture meter, pressure regulating valve, and pressure gauge are all communicatively connected to the moisture detection system. The moisture detection system includes a data acquisition module, a storage module, and an error control module; The acquisition module is used to receive the moisture value measured by the infrared moisture meter and the pressure value measured by the pressure gauge. The storage module is used to store preset moisture values ​​and corresponding preset pressure values. The error control module is used to generate a pressure error control signal based on the error between the measured moisture value and the preset moisture value, and send it to the pressure regulating valve to adjust the compressed air pressure value.

2. The automatic cleaning device for the blade feeding outlet moisture detection system according to claim 1, characterized in that: The moisture detection system is a PLC control system.

3. The automatic cleaning device for the blade feeding outlet moisture detection system according to claim 1, characterized in that: The compressed air source, pressure regulating valve, pressure gauge and nozzle are connected by a PU air pipe.

4. The automatic cleaning device for the blade feeding outlet moisture detection system according to claim 1, characterized in that: The pressure gauge is an electrical contact pressure gauge.

5. The automatic cleaning device for the blade feeding outlet moisture detection system according to claim 1, characterized in that: The pressure regulating valve is an electric gas pressure regulating valve.

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