CN115078409A - On-line measuring, early warning and eliminating system for density and moisture content of cigarette filter stick - Google Patents

Abstract

The invention discloses an on-line measurement, early warning and rejection system for the density and moisture content of filter rods for cigarettes. The system comprises: a material storehouse, an emitter and a launch tube arranged in sequence, and a microwave resonant cavity and a sorting device are arranged on the launch tube. The end of the sorting device is provided with a filter rod rejection tube, the microwave resonance cavity is connected with a filter oscillator, the sorting device is connected with an alarm module, the filter oscillator, the microwave resonance cavity, the sorting device and the alarm module are connected with the controller, and the microwave oscillation The controller is used to generate the microwave signal and transmit it to the microwave resonant cavity. The controller is used to obtain the detection result according to the change of the microwave electromagnetic field capability parameters, and controls the qualified filter rods to enter the receiver through the launch tube, and the unqualified filter rods are moved into the filter rods by the sorting device. Reject the tube, and control the alarm module to alarm. The on-line measurement, early warning and rejection system for cigarette filter rod density and moisture content provided by the invention can realize real-time detection of the whole sample in the filter rod emission link, monitor the filter rod moisture content and density, and timely remove defective filter rods.

Description

On-line measurement, early warning and rejection system of filter rod density and moisture content for cigarettes

technical field

The invention relates to the technical field of filter rod detection, in particular to an on-line measurement, early warning and rejection system for the density and moisture content of a filter rod for cigarettes.

Background technique

Tobacco filter rods mainly refer to filter rods that are processed, rolled and cut with cellulose diacetate tow, filter rod forming paper, etc. as the main raw materials, which filter and absorb part of the smoke particles (such as tar, nicotine, etc.). etc.) to reduce harmful substances in flue gas. In the production process of cigarette acetate fiber filter rods, it is necessary to flatten the acetate fibers and then spray triacetin. In addition, the filling amount, filling uniformity and moisture content of the cellulose diacetate tow will also affect the stability of the quality of the filter rod.

Because the acetate fiber and the applied triacetin require a certain curing time, the quality of the sampling inspection of the filter rod for cigarettes is hysteretic and random. The specific performance is as follows: (1) After the cigarette filter rod reaches the curing time, the effect of triacetin on the hardness of the filter rod can be evaluated by random sampling, and whether there are glue holes or dry rods (filters without triacetin (2) Limited by the frequency of sampling inspection, the random sampling inspection control mode of indicators such as hardness cannot accurately characterize the quality control level of filter rod batches, and some unqualified filter rods may enter the downstream Rolling process; (3) the filling amount, filling uniformity and moisture content of cellulose diacetate tow will affect the stability of the adsorption efficiency of the filter rod, which is not conducive to the precise control of cigarette sensory and safety indicators; (4) existing The filter rod launching process lacks the online quality detection function, which brings uncontrollable external variables to the quality control of the cigarette rolling process.

Therefore, there is an urgent need for an on-line measurement, early warning and rejection system for cigarette filter rod density and moisture content.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a system for on-line measurement, early warning and rejection of the density and moisture content of a cigarette filter rod, so as to solve the problems in the above-mentioned prior art, and to improve the quality traceability and timeliness of the density and moisture content of the cigarette filter rod, And increase the coverage of test samples.

The present invention provides an on-line measurement, early warning and rejection system for the density and moisture content of filter rods for cigarettes, which includes:

The material warehouse, the transmitter and the launch tube are arranged in sequence, the material warehouse is used to store filter rods, and the transmitter is used to receive the filter rods in the material warehouse, and send the received filter rods into the launcher In the tube, a microwave resonant cavity and a sorting device are arranged on the launch tube in sequence, the end of the sorting device is provided with a filter rod rejection tube, the microwave resonant cavity is connected with a filter oscillator, and the sorting device is connected with There is an alarm module, the filter oscillator, the microwave resonant cavity, the sorting device and the alarm module are connected to the controller, and the microwave oscillator is used to generate microwave signals and transmit the generated microwave signals to the controller. In the microwave resonant cavity, the controller is used to control the operation of the microwave oscillator, and when the filter rod passes through the microwave resonant cavity, according to the density and/or moisture content of the filter rod. The resulting changes in the capability parameters of the microwave electromagnetic field can obtain the detection results of each filter rod, which at least include density and moisture content, and control the filter rods with qualified detection results to enter the receiver through the launch tube, and control the measurement results. Unqualified filter rods are moved into the filter rod rejection tube by the sorting device, and the alarm module is controlled to give an alarm.

The above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, wherein, preferably, the filter rod rejection tube is parallel to the launch tube, and the lower end of the filter rod rejection tube is located at the below the lower end of the launch tube.

In the above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, preferably, a storage box is provided below the filter rod rejection tube for collecting filter rods with unqualified measurement results.

In the above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, preferably, the detection result further includes the coefficient of variation and weight of the density of the filter rod.

The above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, wherein, preferably, the controller is provided with a parameter threshold range for each of the detection results, and when at least one detection result exceeds When the corresponding parameter threshold value range is reached, the detection result of the filter rod is determined to be unqualified.

The above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, wherein, preferably, the alarm module includes a light-emitting button arranged on the transmitter, and the controller is also used to The alarm signal is counted.

The above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, wherein, preferably, the launch tube comprises a first horizontal part, a vertical part and a second horizontal part arranged in sequence, wherein all the The first horizontal part is connected with the transmitter, the microwave resonant cavity and the sorting device are arranged on the vertical part, and the second horizontal part is connected with the receiver.

The above-mentioned on-line measurement, early warning and rejection system for cigarette filter rod density and moisture content, wherein, preferably, the first horizontal portion and the second horizontal portion are respectively located on both sides of the vertical portion, and The first horizontal portion is located below the vertical portion, and the second horizontal portion is located above the vertical portion.

In the above-mentioned system for on-line measurement, early warning and rejection of filter rod density and moisture content for cigarettes, preferably, the controller includes a programmable logic controller.

The invention provides an on-line measurement, early warning and rejection system for the density and moisture content of a filter rod for cigarettes, which can realize real-time detection of the whole sample in the emission link of the filter rod, and accurately measure the shaft of a single filter rod while monitoring the moisture content and weight of the filter rod. To the coefficient of variation of the density, the defective filter rods such as filter rods and dry rods with glue holes are removed in time, which effectively solves the problems of poor quality traceability of cigarette filter rod density, moisture content, and low test sample coverage, and improves the smoking of cigarette products. consistency and security.

Description of drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of an embodiment of an on-line measurement, early warning and rejection system for cigarette filter rod density and moisture content provided by the present invention;

FIG. 2 is an enlarged view of the measuring station and the sorting station in FIG. 1 .

Reference numerals: 1-transmitter, 2-material warehouse, 3-launching tube, 4-sorting device, 5-microwave resonant cavity, 6-filter rod rejecting tube, 7-storage box.

Detailed ways

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the disclosure, its application or uses in any way. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that unless specifically stated otherwise, the relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values set forth in these embodiments are to be interpreted as illustrative only and not as limiting.

As used in this disclosure, "first", "second": and similar terms do not denote any order, quantity, or importance, but are merely used to distinguish the different parts. "Comprising" or "comprising" and similar words mean that the element preceding the word covers the elements listed after the word, and does not exclude the possibility that other elements are also covered. "Up", "down", etc. are only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

In the present disclosure, when a specific component is described as being between a first component and a second component, there may or may not be an intervening component between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without intervening components, or may not be directly connected to the other components but have intervening components.

All terms (including technical or scientific terms) used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, general-purpose dictionaries should be construed to have meanings consistent with their meanings in the context of the related art, and not to be construed in an idealized or highly formalized sense, unless explicitly stated herein. Defined like this.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, techniques, methods, and apparatus should be considered part of the specification.

As shown in FIG. 1 and FIG. 2 , the system for online measurement, early warning and rejection of filter rod density and moisture content for cigarettes provided in this embodiment includes: a material storehouse 2, a transmitter 1 and a launch tube arranged in sequence. The library 2 is used to store filter rods, and the transmitter 1 is used to receive the filter rods in the material library 2, and send the received filter rods into the launch tube 3, which are in sequence on the launch tube 3. A microwave resonant cavity 5 and a sorting device 4 are provided. The end of the sorting device 4 is provided with a filter rod rejection tube 6. The microwave resonant cavity 5 is connected with a filter oscillator (not shown). The sorting device 4 is connected with an alarm module (not shown), the filter oscillator, the microwave resonant cavity 5, the sorting device 4 and the alarm module are connected to the controller, and the microwave oscillator is used to generate microwave signals , and transmit the generated microwave signal to the microwave resonant cavity 5, the controller is used to control the microwave oscillator to work, and when the filter rod passes through the microwave resonant cavity 5, according to the filter rod The change of the microwave electromagnetic field capability parameters caused by the difference in the density and/or moisture content of the rods, obtain the test results of each filter rod, and the test results at least include the density and moisture content, and control the filter rods with qualified test results. The launch tube 3 enters the receiver, and the filter rods with unqualified measurement results are controlled to be moved into the filter rod rejection tube 6 by the sorting device 4, and the alarm module is controlled to give an alarm.

Wherein, the detection result also includes the coefficient of variation and weight of the density of the filter rod. Further, the controller includes a programmable logic controller (PLC). In a specific implementation, the parameter threshold range of each of the detection results can be set in the controller, and when at least one detection result exceeds the corresponding parameter threshold When it is within the range, it is determined that the test result of the filter rod is unqualified. The model of the PLC can be, for example, S7-200. It should be noted that the present invention specifically limits the model of the PLC and the set parameter threshold range.

Further, the filter rod rejection tube 6 is parallel to the launch tube 3 , and the lower end of the filter rod rejection tube 6 is located below the lower end of the launch tube 3 . A storage box 7 is provided below the filter rod rejection tube 6 for collecting filter rods with unqualified measurement results.

Further, the alarm module includes a light-emitting button arranged on the transmitter 1, and the controller is also used for counting alarm signals.

Further, the launch tube 3 includes a first horizontal part 31 , a vertical part 32 and a second horizontal part 33 arranged in sequence, wherein the first horizontal part 31 is connected to the transmitter 1 , and the microwave resonant cavity 5 and the sorting device 4 are arranged on the vertical part 32, and the second horizontal part 33 is connected with the receiver.

Further, the first horizontal portion 31 and the second horizontal portion 33 are respectively located on both sides of the vertical portion 32, and the first horizontal portion 31 is located below the vertical portion 32, and the first horizontal portion 31 is located below the vertical portion 32. The two horizontal portions 33 are located above the vertical portions 32 .

In operation, after the filter rod enters the transmitter 1 through the material storehouse 2, it enters the microwave resonant cavity 5 through the launch tube 3; based on the principle of microwave resonance, the microwave signal generated by the microwave oscillator is transmitted to the microwave resonant cavity 5. When passing through the microwave resonant cavity 5, the filter rods with different densities and water contents cause the energy parameters of the microwave electromagnetic field to change. According to the set parameter threshold range, the controller controls the defective filter rods containing glue holes or dry rods, moisture content or weight exceeding the standard to be moved from the sorting device 4 into the filter rod rejection tube 6. And fall into the storage box 7 by gravity; at the same time, the sorting device 4 transmits the early warning signal to the light-emitting button of the transmitter and counts; the filter rods that have passed the online density and moisture content detection are qualified to enter the receiver through the launch tube 3, and send To the corresponding rolling unit to complete the cigarette rolling.

The on-line measurement, early warning and rejection system for the density and moisture content of cigarette filter rods provided by the embodiments of the present invention can realize real-time detection of the whole sample in the filter rod emission link, and accurately measure a single filter rod while monitoring the moisture content and weight of the filter rods. The coefficient of variation of the axial density, and the defective filter rods such as filter rods and dry rods with glue holes are eliminated in time, which effectively solves the problems of poor quality traceability of cigarette filter rod density, moisture content, and low test sample coverage, and improves the smoking rate of cigarette products. Consistency and safety of suction.

So far, the various embodiments of the present disclosure have been described in detail. Some details that are well known in the art are not described in order to avoid obscuring the concept of the present disclosure. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

While some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art will appreciate that the above examples are provided for illustration only, and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that, without departing from the scope and spirit of the present disclosure, the above embodiments can be modified or some technical features can be equivalently replaced. The scope of the present disclosure is defined by the appended claims.

Claims (9)

1. The utility model provides a cigarette filter rod density, moisture content on-line measuring, early warning and rejection system which characterized in that includes:

the device comprises a material warehouse, a transmitter and a transmitting tube which are sequentially arranged, wherein the material warehouse is used for storing filter rods, the transmitter is used for receiving the filter rods in the material warehouse and sending the received filter rods into the transmitting tube, a microwave resonant cavity and a sorting device are sequentially arranged on the transmitting tube, a filter rod removing tube is arranged at the tail end of the sorting device, the microwave resonant cavity is connected with a filter oscillator, the sorting device is connected with an alarm module, the filter oscillator, the microwave resonant cavity, the sorting device and the alarm module are connected with a controller, the microwave oscillator is used for generating microwave signals and transmitting the generated microwave signals to the microwave resonant cavity, the controller is used for controlling the microwave oscillator to work and when the filter rods pass through the microwave resonant cavity, according to the change of microwave electromagnetic field capacity parameters caused by the difference of the density and/or the water content of the filter rods, and obtaining a detection result of each filter stick, wherein the detection result at least comprises density and moisture content, controlling the filter sticks with qualified detection results to enter a receiver through the transmitting pipe, controlling the filter sticks with unqualified measurement results to move into the filter stick rejecting pipe through the sorting device, and controlling the alarm module to alarm.

2. The system for online measuring, warning and rejecting density and moisture content of the cigarette filter stick according to claim 1, wherein the filter stick rejecting pipe is parallel to the transmitting pipe, and the lower end of the filter stick rejecting pipe is positioned below the lower end of the transmitting pipe.

3. The system for online measuring, early warning and eliminating the density and the moisture content of the cigarette filter stick according to claim 2, wherein a containing box is arranged below the filter stick eliminating pipe and used for collecting the filter stick with unqualified measuring results.

4. The system for online measuring, warning and rejecting density and moisture content of the cigarette filter stick according to claim 1, wherein the detection result further comprises the variation coefficient and weight of the density of the filter stick.

5. The system for online measuring, warning and rejecting density and moisture content of the cigarette filter stick according to claim 3, wherein a parameter threshold range of each detection result is set in the controller, and when at least one detection result exceeds the corresponding parameter threshold range, the detection result of the filter stick is determined to be unqualified.

6. The system for online measuring, early warning and eliminating the density and the moisture content of the cigarette filter stick according to claim 1, wherein the alarm module comprises a light-emitting button arranged on the transmitter, and the controller is further used for counting alarm signals.

7. The system for online measuring, early warning and eliminating the density and the moisture content of the cigarette filter stick according to claim 1, wherein the transmitting tube comprises a first horizontal part, a vertical part and a second horizontal part which are sequentially arranged, wherein the first horizontal part is connected with the transmitter, the microwave resonant cavity and the sorting device are arranged on the vertical part, and the second horizontal part is connected with the receiver.

8. The system for online measuring, warning and rejecting density and moisture content of the cigarette filter stick according to claim 7, wherein the first horizontal part and the second horizontal part are respectively located on two sides of the vertical part, the first horizontal part is located below the vertical part, and the second horizontal part is located above the vertical part.

9. The system for online measuring, warning and rejecting density and moisture content of the cigarette filter stick according to claim 1, wherein the controller comprises a programmable logic controller.

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