WO2020252882A1 - 卷烟包装密封度的检测装置及方法 - Google Patents

卷烟包装密封度的检测装置及方法 Download PDF

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WO2020252882A1
WO2020252882A1 PCT/CN2019/101599 CN2019101599W WO2020252882A1 WO 2020252882 A1 WO2020252882 A1 WO 2020252882A1 CN 2019101599 W CN2019101599 W CN 2019101599W WO 2020252882 A1 WO2020252882 A1 WO 2020252882A1
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WIPO (PCT)
Prior art keywords
pressure
chamber
cigarette package
tested
tightness
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PCT/CN2019/101599
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English (en)
French (fr)
Inventor
李跃锋
李斌
王道铨
洪伟龄
王兵
张龙
王锐亮
堵劲松
徐大勇
陈冬滨
邓宏博
马明旻
吕健
张大波
Original Assignee
福建中烟工业有限责任公司
中国烟草总公司郑州烟草研究院
中国科学院合肥物质科学研究院
厦门烟草工业有限责任公司
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Publication of WO2020252882A1 publication Critical patent/WO2020252882A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3254—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers using a flow detector

Definitions

  • the present disclosure relates to the field of tobacco, and in particular to a device and method for detecting the sealing degree of cigarette packages.
  • the airtightness of a single cigarette package is an important physical index in the production process of cigarettes. Good airtightness can effectively prevent the loss of flavor when cigarettes are stored for a long time, and reduce the impact of environmental temperature and humidity on cigarettes and the impact of cigarettes. Moisture transfer between them to ensure the long-term stability of cigarette quality. Poor airtightness of a single cigarette box package will cause the cigarette’s flavor to be lost. At the same time, the moisture content of the cigarette will decrease or increase with changes in the ambient temperature and humidity. Too high or too low a moisture content will cause the cigarette to mildew or dry out, which is serious. Affect the quality of cigarettes.
  • the single-pack box packaging formed after the cigarette pack film is folded and formed and transported to the soldering iron hot-sticking mechanism may have the cigarette pack film slack, wrinkles, air bubbles on the sides, and not tightly attached, etc.
  • the problem affects the tightness of the cigarette package.
  • a device for detecting the tightness of a cigarette package includes:
  • the chamber is configured to form a sealed space in which the cigarette package to be tested is placed;
  • a vent pipe the first end is used to communicate with the inside of the tested cigarette package, and the connection between the first end and the tested cigarette package is configured to form a seal, and the second end is located in the cavity external;
  • a pressure sensor for detecting the pressure difference between inside and outside the chamber
  • a vacuum generating device connected to the chamber through a pipeline, and configured to adjust and maintain the pressure in the chamber within a preset pressure range according to the pressure value detected by the pressure sensor;
  • the flow meter is set on the pipeline connecting the vacuum generating device and the chamber, and is used to display the flow value in the pipeline, so that when the pressure in the chamber is within the preset pressure range, according to the flow value Judge the sealing degree of the tested cigarette package.
  • a controller is included, the controller is electrically connected to the pressure sensor and the vacuum generating device, and is configured to adjust the vacuum generating device according to the pressure value in the chamber detected by the pressure sensor.
  • the suction flow rate of the device is such that the pressure in the chamber is adjusted and maintained within the preset pressure range.
  • a solenoid valve is included, the solenoid valve is provided on the vacuum generating device, and the controller is electrically connected to the solenoid valve to adjust the suction flow of the vacuum generating device through the solenoid valve.
  • a suction cup assembly is included, and the suction cup assembly includes:
  • the tray is used to absorb the tested cigarette package and cover the connection between the vent pipe and the tested cigarette package;
  • a negative pressure pipe connected to the inside of the tray body for forming negative pressure so that the tray body can absorb the cigarette package to be tested;
  • the ventilation pipe is arranged in the negative pressure pipe;
  • the suction cup assembly is configured to seal the connection between the first end of the vent pipe and the cigarette package under test.
  • the vacuum generating device includes a vacuum pump or a vacuum generator.
  • the pressure sensor includes a pressure difference sensor for detecting the pressure difference between the inside and outside of the chamber.
  • the flow meter includes a volume flow meter or a mass flow meter.
  • Some embodiments of the present disclosure provide a method for testing the sealing degree of a cigarette package, which adopts the above-mentioned testing device for the sealing degree of a cigarette package, and the testing method includes:
  • Negative pressure is formed in the chamber through the vacuum generator
  • the tightness of the tested cigarette package is judged according to the flow value detected by the flowmeter: when the flow value is less than or equal to the preset value of flow, the seal of the tested cigarette package is judged Good performance, when the flow value is greater than the preset value of the flow, it is judged that the tightness of the cigarette package under test is poor.
  • the device for detecting the tightness of the cigarette package includes a controller electrically connected to the pressure sensor and the vacuum generating device;
  • the adjusting the vacuum generating device according to the pressure value detected by the pressure sensor so that the pressure in the chamber reaches and maintains within the preset pressure range includes:
  • the controller adjusts the suction flow rate of the vacuum generator according to the pressure value detected by the pressure sensor, so that the pressure in the chamber reaches and maintains within the preset pressure range.
  • the device for detecting the tightness of the cigarette package includes a suction cup assembly, and the suction cup assembly includes a tray body and a negative pressure pipe;
  • the sealing the connection between the first end of the vent pipe and the cigarette package to be tested includes:
  • a negative pressure is formed in the negative pressure pipe so that the tray body absorbs the cigarette package to be tested, so that the joint between the cigarette package to be tested and the first end of the ventilation pipe is in close contact to form a seal.
  • the pressure in the chamber detected by the pressure sensor is adjusted and maintained within a preset pressure range by the vacuum generating device, and the flow value detected by the flowmeter is judged
  • the tightness of the tested cigarette package has clear detection indicators and high efficiency. Through the adjustment of the preset pressure, it will not cause damage to the cigarette package. The accuracy of the test results is high, which is conducive to taking corresponding measures in time to improve the sealing of the cigarette package. To reduce the impact of poor sealing of cigarette packaging on cigarette quality.
  • Fig. 1 is a schematic diagram showing a device for detecting the tightness of a cigarette package according to some embodiments of the present disclosure.
  • the present disclosure proposes a cigarette package sealing degree detection device and method for alleviating the influence of poor cigarette package sealing degree on cigarette quality.
  • Cigarette packaging includes at least single box packaging, bar box packaging and full box packaging.
  • the strip box packaging is used to contain a set number of single-pack box packaging.
  • the whole box package is used to contain a set number of bar boxes.
  • the good airtightness of the single-pack box packaging is more conducive to preventing the fragrance loss during long-term storage of cigarettes, while reducing the impact of environmental temperature and humidity on the quality of cigarettes and the transfer of moisture between the cigarettes and ensuring the long-term stability of cigarette quality, therefore, It is more meaningful to test the tightness of a single package.
  • the present disclosure provides a device for detecting the tightness of a cigarette package, which is used for detecting the tightness of a cigarette package, and is particularly suitable for detecting the tightness of a single-packed box package.
  • the device for detecting the tightness of the cigarette package adopts a method of measuring the flow rate under a constant pressure condition to detect the tightness of the cigarette package. Under the set pressure condition, the tightness of the cigarette package is judged by the flow rate, and the measured flow rate is the leakage amount of the cigarette package, which has a clear physical index.
  • a device for detecting the tightness of a cigarette package includes a chamber 1, a vent pipe 2, a pressure sensor 3, a vacuum generating device 4, and a flow meter 5.
  • the chamber 1 is configured to form a sealed space in which the cigarette package a to be tested is placed.
  • the first end of the vent pipe 2 is used to communicate with the inside of the tested cigarette package a, and the connection between the first end of the vent pipe 2 and the tested cigarette package a is configured to form a seal; the second end of the vent pipe 2 is located
  • the outside of the chamber 1 communicates with the atmosphere outside the chamber 1. During the detection process, the internal pressure of the tested cigarette package a is consistent with the external atmospheric pressure, the outside of the tested cigarette package a is in the chamber 1, and the pressure received is the pressure in the chamber 1.
  • the pressure sensor 3 is used to detect the pressure in the chamber 1.
  • the vacuum generator 4 is connected to the chamber 1 through a pipeline, and is configured to adjust the pressure in the chamber 1 to a preset pressure range according to the pressure value detected by the pressure sensor 3, and maintain the pressure in the chamber 1 at the preset pressure. Set within the pressure range.
  • the flow meter 5 is installed on the pipeline connecting the vacuum generator 4 and the chamber 1 to display the flow value in the pipeline, so that when the pressure in the chamber 1 is within the preset pressure range, it can be detected according to the flow meter 5
  • the value of flow rate judges the tightness of the tested cigarette package a.
  • the pressure in the chamber 1 is adjusted to a preset pressure range, and the flow rate data displayed by the flow meter 5 is used to determine the sealing degree of the cigarette package a under test.
  • the principle is that it is constant in the chamber 1.
  • the flow rate is measured under pressure, and the measured flow rate is the leakage of the cigarette package.
  • the physical concept of the test result is clear.
  • the pressure in the chamber 1 is adjusted to be within a preset pressure range, and the preset pressure range is set based on the need to ensure that the tested cigarette package a will not be damaged by the pressure inside or outside it.
  • the pressure in the chamber 1 is adjusted and maintained within the preset pressure range. Under pressure control, it will not cause damage to the sealed cigarette package a to be tested, and improve the accuracy of the sealing degree detection of the tested cigarette package a .
  • the method for testing the sealing degree of a cigarette package realized by using the above-mentioned device for detecting the sealing degree of a cigarette package includes:
  • a negative pressure is formed in the chamber 1 by the vacuum generator 4.
  • the pressure in the chamber 1 is detected by the pressure sensor 3.
  • the vacuum generating device 4 is adjusted according to the pressure value detected by the pressure sensor 3 so that the pressure in the chamber 1 reaches and maintains within the preset pressure range.
  • the flow value detected by the flow meter 5 is less than or equal to the preset flow value, it is determined that the tightness of the tested cigarette package a is good; in the case that the flow value detected by the flow meter 5 is greater than the preset flow value, it is determined that the tested cigarette The tightness of the package a is poor, and the larger the flow value detected by the flow meter 5 is, the poorer the tightness of the tested cigarette package a is.
  • the preset value of the flow rate ranges from 0.0 to 300.0 ml/min.
  • the tightness of the tested cigarette package a is judged, and the detection index is relatively intuitive and clear.
  • the detection efficiency is high; and the preset pressure range in the chamber 1 will not cause damage to the tested cigarette package a, and the accuracy of the detection result is high.
  • Detecting the sealing degree of cigarette packages is used to effectively evaluate the long-term stability of cigarettes, and at the same time, it helps to adjust the sealing mechanism of cigarette packaging machines using process technology and improve the technical level of cigarette packaging.
  • the device for detecting the tightness of cigarette packages includes a controller 6 which is electrically connected to the pressure sensor 3 and the vacuum generating device 4.
  • the controller 6 is used to adjust the suction flow of the vacuum generator 4 according to the pressure value in the chamber 1 detected by the pressure sensor 3, so that the pressure in the chamber 1 is adjusted and maintained within a preset pressure range.
  • the aforementioned electrical connection includes electrical signal connection or circuit connection.
  • the device for detecting the tightness of the cigarette package includes a solenoid valve 7 which is provided in the vacuum generating device 4.
  • the controller 6 is electrically connected to the solenoid valve 7 to adjust the suction flow of the vacuum generating device 4 through the solenoid valve 7.
  • the device for detecting the tightness of a cigarette package includes a suction cup assembly 8, and the suction cup assembly 8 includes a tray body 81 and a negative pressure pipe 82.
  • the tray 81 is used to absorb the cigarette package a to be tested, and covers the connection between the ventilation duct 2 and the cigarette package a to be tested.
  • the air duct 2 is provided in the negative pressure duct 82.
  • the negative pressure pipe 82 is connected to the inside of the disc body 81 to form a negative pressure so that the disc body 81 can absorb the cigarette package a to be tested.
  • the suction cup assembly 8 is configured to seal the connection between the first end of the ventilation duct 2 and the cigarette package a to be tested.
  • the surface of the tested cigarette package a is adsorbed by the suction cup assembly 8 and is connected to the vent pipe 2 The first end is in close contact to form a seal.
  • a ring of sealing tape is provided at the adsorption and attachment position of the tray body 81 and the tested cigarette package a.
  • a ring of sealing tape is provided at the junction of the vent pipe 2 and the cigarette package a to be tested.
  • the vacuum generating device 4 includes a vacuum pump or a vacuum generator.
  • the pressure sensor 3 includes a pressure difference sensor for detecting the pressure difference between the inside and outside of the chamber 1.
  • the controller 6 includes a programmable controller.
  • the pressure difference sensor is provided outside the chamber 1 and communicates with the inside of the chamber 1 for detecting the pressure difference between the inside and the outside of the chamber 1.
  • the pressure difference sensor sends the pressure difference signal to the controller 6 through a signal transmission line.
  • the controller 6 sends a control command to the solenoid valve 7 according to the pressure difference signal, and the solenoid valve 7 adjusts the suction flow of the vacuum generator 4.
  • the differential pressure sensor includes a micro differential pressure sensor.
  • the flow meter 5 includes a volume flow meter or a mass flow meter.
  • the flow meter 5 adopts a high-precision flow meter.
  • the device for detecting the tightness of cigarette packages has a simple structure, high test accuracy, a wide selection range of instruments such as pressure sensor 3 and flow meter 5, and low cost.
  • the device for detecting the tightness of cigarette packages includes a controller 6 which is electrically connected to the pressure sensor 3 and the vacuum generating device 4.
  • the vacuum generating device 4 is adjusted according to the pressure value detected by the pressure sensor 3 so that the pressure in the chamber 1 reaches and maintains a preset value Within the pressure range, including:
  • the controller 6 adjusts the suction flow of the vacuum generating device 4 according to the pressure value detected by the pressure sensor 3, so that the pressure in the chamber 1 reaches and maintains within the preset pressure range.
  • the device for detecting the tightness of a cigarette package includes a suction cup assembly 8, and the suction cup assembly 8 includes a tray body 81 and a negative pressure pipe 82.
  • the method for testing the sealing degree of a cigarette package realized by adopting the above-mentioned device for detecting the sealing degree of a cigarette package, forming a seal between the first end of the vent pipe 2 and the tested cigarette package a includes:
  • a negative pressure is formed in the negative pressure pipe 82, so that the tray 81 absorbs the cigarette package a to be tested, so that the joint between the cigarette package a to be tested and the first end of the vent pipe 2 is in close contact to form a seal.
  • Perforate the tested cigarette package a and the purpose of the opening is to communicate with the vent pipe 2 so that the inside of the tested cigarette package a is placed in an open space, and the internal pressure will be constant at one atmosphere.
  • the tested cigarette package a is sucked and fixed by the suction cup assembly 8, and the connection between the first end of the vent pipe 2 and the tested cigarette package a forms a seal.
  • the tested cigarette package a is placed in the chamber 1, and the suction cup assembly 8 and the ventilation duct 2 completely cover the perforations on the tested cigarette package a.
  • the chamber 1 forms a sealed space, and the air tightness of the chamber 1 is checked.
  • a negative pressure is formed in the chamber 1 by the vacuum generator 4.
  • the pressure in the chamber 1 is detected by the pressure sensor 3, and the pressure signal is transmitted to the controller 6 through the signal transmission line.
  • the control command is transmitted to the solenoid valve 7, and the vacuum generator 8 is controlled by the solenoid valve 7 , Realize the control of the pressure in the chamber 1 and stabilize the pressure in the chamber 1 to the preset pressure range.
  • the flow data of the flow meter 5 is read and recorded, and the test ends.
  • the flow data of the flow meter 5 can represent the degree of tightness of the tested cigarette package a.
  • the large flow data of the flow meter 5 indicates that the leakage of the tested cigarette package a is large and the sealing is not good; on the contrary, the flow data of the flow meter 5 is small, which indicates that the leakage of the tested cigarette package a is small and the sealing is good.
  • the flow data detected by the flowmeter 5 can be manually read, or the signal can be sent to the controller 6 to be read by the controller 6 to judge the tightness of the tested cigarette package a.
  • Two single-pack box packages A and B are selected for testing.
  • the test conditions are the pressure difference between the inside and outside of chamber 1.
  • the preset pressure ranges are 1000Pa ⁇ 20Pa and 500Pa ⁇ 20Pa.
  • the test data is shown in the table below.
  • single-pack box packages A and B both show different degrees of leakage. And it is judged that the sealing degree of the single-box package B is better than the sealing degree of the single-box package A.

Abstract

一种卷烟包装密封度的检测装置及方法，检测装置包括：腔室（1），被构造为形成密封空间，其内用于放置被测卷烟包装（a）；通气管道（2），第一端用于与被测卷烟包装（a）的内部连通，与被测卷烟包装（a）的连接处被配置为形成密封，第二端位于腔室（1）外部；压力传感器（3），用于检测腔室（1）内的压力；真空发生装置（4），连接腔室（1），被配置为根据压力传感器（3）检测的压力值，将腔室（1）内的压力调节并维持在预设压力范围内；以及流量计（5），设于连接真空发生装置（4）与腔室（1）的管路上，用于显示管路内的流量值，以在腔室（1）内的压力在预设压力范围内时，根据流量值判断被测卷烟包装（a）的密封度。检测装置及方法检测指标明确，准确性高，用于缓解卷烟包装密封度差对卷烟质量造成的影响。

Description

卷烟包装密封度的检测装置及方法
相关申请的交叉引用
本申请是以CN申请号为201910521354.3，申请日为2019年6月17日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及烟草领域，尤其涉及一种卷烟包装密封度的检测装置及方法。
背景技术
卷烟单包盒包装的密封度是卷烟在生产过程中的一项重要的物理指标，良好的密封性可有效防止卷烟长时间储存时香味的散失，同时减少环境温湿度对卷烟的影响以及与卷烟间水分的传递，以保证卷烟质量的长期稳定性。卷烟单包盒包装的密封度差将导致卷烟的香味散失，同时卷烟水分会随环境温湿度的变化，而降低或增加，过高或过低的含水率会导致卷烟发生霉变或干裂，严重影响卷烟的质量。
在卷烟包装的生产过程中，在烟包薄膜折叠成形以及输送到烙铁烫贴机构后形成的单包盒包装，可能会存在烟包薄膜松弛、起皱、侧面烙封有气泡、不贴紧等问题，从而影响到卷烟包装的密封度。
公开内容
依据本公开的一些实施例的一个方面，卷烟包装密封度的检测装置包括：
腔室，被构造为形成密封的空间，其内用于放置被测卷烟包装；
通气管道，第一端用于与所述被测卷烟包装的内部连通，且所述第一端与所述被测卷烟包装的连接处被配置为形成密封，第二端位于所述腔室的外部；
压力传感器，用于检测所述腔室内、外的压力差；
真空发生装置，通过管路连接所述腔室，被配置为根据所述压力传感器检测的压力值，将所述腔室内的压力调节并维持在预设压力范围内；以及
流量计，设于连接所述真空发生装置与所述腔室的管路上，用于显示管路内的流量值，以便于在所述腔室内的压力在预设压力范围内时，根据流量值判断所述被测卷烟包装的密封度。
在一些实施例中，包括控制器，所述控制器电连接所述压力传感器和所述真空发生装置，用于根据所述压力传感器检测到的所述腔室内的压力值，调节所述真空发生装置的抽吸流量，以使所述腔室内的压力调节并维持在预设压力范围内。
在一些实施例中，包括电磁阀，所述电磁阀设于所述真空发生装置，所述控制器电连接所述电磁阀，以通过所述电磁阀调节所述真空发生装置的抽吸流量。
在一些实施例中，包括吸盘组件，所述吸盘组件包括：
盘体，用于吸附所述被测卷烟包装，且覆盖所述通气管道与被测卷烟包装的连接处；以及
负压管道，连接所述盘体的内部，用于形成负压，以使所述盘体吸附所述被测卷烟包装；所述通气管道设于所述负压管道内；
所述吸盘组件被配置为用于实现所述通气管道的第一端与所述被测卷烟包装的连接处的密封。
在一些实施例中，所述真空发生装置包括真空泵或真空发生器。
在一些实施例中，所述压力传感器包括压差传感器，用于检测所述腔室的内、外的压差。
在一些实施例中，所述流量计包括体积流量计或质量流量计。
本公开的一些实施例提供了一种卷烟包装密封度的测试方法其采用上述的卷烟包装密封度的检测装置，所述测试方法包括：
将被测卷烟包装放置在腔室内；
将通气管道的第一端与被测卷烟包装的内部连通，且将通气管道的第一端与被测卷烟包装的连接处形成密封；将通气管道的第二端设于腔室的外部；
通过真空发生装置使腔室内形成负压；
通过压力传感器检测腔室内外的压力差；
根据压力传感器检测到的压力值调节真空发生装置，以使腔室内的压力达到且维持在预设压力范围内；
在腔室内的压力维持在预设压力范围内时，根据流量计检测的流量值判断被测卷烟包装的密封性：在流量值小于等于流量预设值的情况下，判断被测卷烟包装的密封性好，在流量值大于流量预设值的情况下，判断被测卷烟包装的密封性差。
在一些实施例中，所述卷烟包装密封度的检测装置包括控制器，所述控制器电连接所述压力传感器和所述真空发生装置；
所述根据压力传感器检测到的压力值调节真空发生装置，以使腔室内的压力达到且维持在预设压力范围内，包括：
通过控制器根据压力传感器检测到的压力值调节真空发生装置的抽吸流量，以使腔室内的压力达到且维持在预设压力范围内。
在一些实施例中，所述卷烟包装密封度的检测装置包括吸盘组件，吸盘组件包括盘体和负压管道；
所述将通气管道的第一端与被测卷烟包装的连接处形成密封，包括：
将盘体覆盖通气管道的第一端与被测卷烟包装的连接处；
将通气管道套设在负压管道的外部，且连通盘体的内部；
将负压管道内形成负压，以使盘体吸附被测卷烟包装，使被测卷烟包装与通气管道的第一端的连接处紧密接触，形成密封。
依据本公开的一些实施例的一个方面，根据压力传感器检测的腔室内的压力值，通过真空发生装置将腔室内的压力调节且维持在预设压力范围内，根据流量计检测的流量值，判断被测卷烟包装的密封度，检测指标明确，效率高，通过预设压力的调整，不会对卷烟包装造成损坏，检测结果的准确性高，有利于及时采取相应的措施，提高卷烟包装的密封度，缓解卷烟包装密封度差对卷烟质量造成的影响。
附图说明
图1是示出根据本公开一些实施例的卷烟包装密封度的检测装置的示意图。
附图中标号说明：
1-腔室；2-通气管道；3-压力传感器；4-真空发生装置；5-流量计；6-控制器；7-电磁阀；8-吸盘组件；81-盘体；82-负压管道；
a-被测卷烟包装。
具体实施方式
下面将结合本公开实施例中的附图，对实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“前”、 “后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开保护范围的限制。
本公开提出一种用于缓解卷烟包装密封度差对卷烟质量造成的影响的卷烟包装密封度的检测装置及方法。
卷烟包装至少包括单包盒包装、条盒包装和整箱包装。其中，条盒包装内用于容纳设定数量的单包盒包装。整箱包装内用于容纳设定数量的条盒包装。
由于单包盒包装良好的密封性更加有利于防止卷烟长时间储存时香味的散失，同时减少环境温湿度对卷烟质量的影响以及与卷烟间水分的传递，保证卷烟质量的长期稳定性，因此，对单包盒包装的密封性的检测更有意义。
本公开提供了一种卷烟包装密封度的检测装置，用于对卷烟包装的密封度进行检测，尤其适用于对单包盒包装的密封度的检测。
本公开提供的卷烟包装密封度的检测装置采用定压条件下测定流量的方法，检测卷烟包装的密封度。在设定的压力条件下，通过流量大小判断卷烟包装的密封度，测定的流量即为卷烟包装的泄漏量，具有明确的物理指标。
如图1所示，在一些实施例中，卷烟包装密封度的检测装置包括腔室1、通气管道2、压力传感器3、真空发生装置4和流量计5。
腔室1被构造为形成密封的空间，其内用于放置被测卷烟包装a。
通气管道2的第一端用于与被测卷烟包装a的内部连通，且通气管道2的第一端与被测卷烟包装a的连接处被配置为形成密封；通气管道2的第二端位于腔室1的外部，与腔室1外部的大气连通。在检测过程中，被测卷烟包装a的内部压力与外部大气压力一致，被测卷烟包装a的外部处于腔室1内，受到的压力为腔室1内的压力。
压力传感器3用于检测腔室1内的压力。
真空发生装置4通过管路连接腔室1，被配置为根据压力传感器3检测的压力值，将腔室1内的压力调节至预设压力范围内，并将腔室1内的压力维持在预设压力范围内。
流量计5设于连接真空发生装置4与腔室1的管路上，用于显示管路内的流量值，以便于在腔室1内的压力在预设压力范围内时，根据流量计5检测的流量值判断被测卷烟包装a的密封度。
在一些实施例中，将腔室1内的压力调节至预设压力范围内，通过流量计5显示 的流量数据，判断被测卷烟包装a的密封度，其原理是在腔室1内的恒定压力下测定流量，测定的流量即为卷烟包装的泄漏量，测试结果的物理概念明确。
上述实施例中，将腔室1内的压力调节至预设压力范围内，该预设压力范围的设定依据为需要保证被测卷烟包装a不会被其内、外部承受的压力破坏。将腔室1内的压力调节且维持在预设压力范围内，在压力控制下，不会造成对密封好的被测卷烟包装a的损坏，提高被测卷烟包装a的密封度检测的准确性。
在一些实施例中，采用上述的卷烟包装密封度的检测装置实现的卷烟包装密封度的测试方法包括：
将被测卷烟包装a放置在腔室1内。
将通气管道2的第一端与被测卷烟包装a的内部连通，且将通气管道2的第一端与被测卷烟包装a的连接处形成密封，将通气管道2的第二端设于腔室1的外部；被测卷烟包装a内部的压力与腔室1的外部的大气压力一致，被测卷烟包装a外部的压力与腔室1的内部的压力一致。
通过真空发生装置4使腔室1内形成负压。
通过压力传感器3检测腔室1内的压力。
根据压力传感器3检测到的压力值调节真空发生装置4，以使腔室1内的压力达到且维持在预设压力范围内。
在腔室1内的压力维持在预设压力范围内时，根据流量计5检测的流量值判断被测卷烟包装a的密封性，判断标准为：
在流量计5检测的流量值小于等于流量预设值的情况下，判断被测卷烟包装a的密封性好；在流量计5检测的流量值大于流量预设值的情况下，判断被测卷烟包装a的密封性差，且流量计5检测的流量值越大，表示被测卷烟包装a的密封性越差。
可选地，流量预设值的范围为0.0～300.0ml/min。
在一些实施例中，通过将腔室1内的压力维持在预设压力范围内时，观察流量计5检测的流量值，来判断被测卷烟包装a的密封性，检测指标比较直观、明确，检测效率高；且腔室1内的预设的压力范围不会对被测卷烟包装a造成破坏，检测结果的准确性高。
检测卷烟包装的密封度用于有效评估卷烟的长期稳定性，同时有助于利用工艺技术调整卷烟包装机的封口机构，提高卷烟包装的技术水平。
在一些实施例中，卷烟包装密封度的检测装置包括控制器6，控制器6电连接压力传感器3和真空发生装置4。控制器6用于根据压力传感器3检测到的腔室1内的 压力值，调节真空发生装置4的抽吸流量，以使腔室1内的压力调节并维持在预设压力范围内。
上述的电连接包括电信号连接或电路连接。
在一些实施例中，卷烟包装密封度的检测装置包括电磁阀7，电磁阀7设于真空发生装置4。控制器6电连接电磁阀7，以通过电磁阀7调节真空发生装置4的抽吸流量。
在一些实施例中，卷烟包装密封度的检测装置包括吸盘组件8，吸盘组件8包括盘体81和负压管道82。
盘体81用于吸附被测卷烟包装a，且覆盖通气管道2与被测卷烟包装a的连接处。
通气管道2设于负压管道82内。负压管道82连接盘体81的内部，用于形成负压，以使盘体81吸附被测卷烟包装a。
吸盘组件8被配置为用于实现通气管道2的第一端与被测卷烟包装a的连接处的密封。
由于被测卷烟包装a较软，为了使通气管道2的第一端与被测卷烟包装a的连接处形成密封，通过吸盘组件8将被测卷烟包装a的表面吸附起来，与通气管道2的第一端紧密接触，以形成密封。
在一些实施例中，为了提高吸盘组件8与被测卷烟包装a的密封性，在盘体81与被测卷烟包装a的吸附贴合处设有一圈密封胶条。
在通气管道2与被测卷烟包装a的连接处设有一圈密封胶条。
在一些实施例中，真空发生装置4包括真空泵或真空发生器。
在一些实施例中，压力传感器3包括压差传感器，用于检测腔室1的内部和外部的压差。
在一些实施例中，控制器6包括可编程控制器。
压差传感器设于腔室1的外部，且与腔室1的内部连通，用于检测腔室1的内部与外部的压差。压差传感器将压差信号通过信号传输线发送给控制器6，控制器6根据压差信号，发出控制指令给电磁阀7，通过电磁阀7调节真空发生装置4的抽吸流量。
在一些实施例中，压差传感器包括微压差传感器。
在一些实施例中，流量计5包括体积流量计或质量流量计。
在一些实施例中，流量计5采用高精度流量计。
卷烟包装密封度的检测装置结构简单，测试精度高，压力传感器3和流量计5等 仪表选择性范围广，成本低。
在一些实施例中，卷烟包装密封度的检测装置包括控制器6，控制器6电连接压力传感器3和真空发生装置4。
采用上述的卷烟包装密封度的检测装置实现的卷烟包装密封度的测试方法中，根据压力传感器3检测到的压力值调节真空发生装置4，以使腔室1内的压力达到且维持在预设压力范围内，包括：
控制器6根据压力传感器3检测到的压力值调节真空发生装置4的抽吸流量，以使腔室1内的压力达到且维持在预设压力范围内。
在一些实施例中，卷烟包装密封度的检测装置包括吸盘组件8，吸盘组件8包括盘体81和负压管道82。
采用上述的卷烟包装密封度的检测装置实现的卷烟包装密封度的测试方法中，将通气管道2的第一端与被测卷烟包装a的连接处形成密封，包括：
将盘体81覆盖通气管道2的第一端与被测卷烟包装a的连接处；
将通气管道2套设在负压管道82的外部，且连通盘体81的内部；
将负压管道82内形成负压，以使盘体81吸附被测卷烟包装a，使被测卷烟包装a与通气管道2的第一端的连接处紧密接触，形成密封。
采用上述一些实施例提供的卷烟包装密封度的检测装置实现的卷烟包装密封度的测试方法包括：
对被测卷烟包装a打孔，开孔的目的是与通气管道2连通，使被测卷烟包装a的内部置于开放空间下，内部压力将恒定为一个大气压。
被测卷烟包装a被吸盘组件8吸附固定，通气管道2的第一端与被测卷烟包装a的连接处形成密封。
被测卷烟包装a置于腔室1内，吸盘组件8和通气管道2完全覆盖被测卷烟包装a上的打孔。
腔室1形成密封空间，检查腔室1的气密性。
通过真空发生装置4使腔室1内形成负压。
通过压力传感器3检测腔室1内的压力，且将压力信号通过信号传输线传输至控制器6，控制器6进行处理后，将控制指令传输至电磁阀7，通过电磁阀7控制真空发生装置8，实现对腔室1内压力的控制并使腔室1内的压力稳定至预设压力范围内。
腔室1的内部和外部的压差值在预设压力范围内并稳定后，读取流量计5的流量数据，并记录，测试结束。
流量计5的流量数据即可表征被测卷烟包装a的密封度的大小。流量计5的流量数据大，说明被测卷烟包装a的泄露量大，密封不好；反之，流量计5的流量数据小，说明被测卷烟包装a的泄露量小，密封好。
流量计5检测到的流量数据可以人工读取，或者信号传送给控制器6，通过控制器6进行读取，以对被测卷烟包装a的密封度进行判断。
选择两个单包盒包装A和B进行测试，测试条件分别为腔室1的内部与外部的压差值预设压力范围为1000Pa±20Pa和500Pa±20Pa，测试数据如下表所示。
Figure PCTCN2019101599-appb-000001
根据上述测试数据，单包盒包装A和B均显示不同程度的泄露。且判断出单包盒包装B的密封度优于单包盒包装A的密封度。
在本公开的描述中，需要理解的是，使用“第一”、“第二”等词语来限定零部件，仅仅是为了便于对上述零部件进行区别，如没有另行声明，上述词语并没有特殊含义，因此不能理解为对本公开保护范围的限制。
最后应当说明的是:以上实施例仅用以说明本公开的技术方案而非对其限制；尽管参照较佳实施例对本公开进行了详细的说明，所属领域的普通技术人员应当理解：依然可以对本公开的具体实施方式进行修改或者对部分技术特征进行等同替换；而不脱离本公开技术方案的精神，其均应涵盖在本公开请求保护的技术方案范围当中。

Claims (10)

  1. 一种卷烟包装密封度的检测装置，包括：
    腔室(1)，被构造为形成密封的空间，其内用于放置被测卷烟包装(a)；
    通气管道(2)，第一端用于与所述被测卷烟包装(a)的内部连通，且所述第一端与所述被测卷烟包装(a)的连接处被配置为形成密封，第二端位于所述腔室(1)的外部；
    压力传感器(3)，用于检测所述腔室(1)内的压力；
    真空发生装置(4)，通过管路连接所述腔室(1)，被配置为根据所述压力传感器(3)检测的压力值，将所述腔室(1)内的压力调节并维持在预设压力范围内；以及
    流量计(5)，设于连接所述真空发生装置(4)与所述腔室(1)的管路上，用于显示管路内的流量值，以便于在所述腔室(1)内的压力在预设压力范围内时，根据流量值判断所述被测卷烟包装(a)的密封度。
  2. 如权利要求1所述的卷烟包装密封度的检测装置，包括控制器(6)，所述控制器(6)电连接所述压力传感器(3)和所述真空发生装置(4)，用于根据所述压力传感器(3)检测到的所述腔室(1)内的压力值，调节所述真空发生装置(4)的抽吸流量，以使所述腔室(1)内的压力调节并维持在预设压力范围内。
  3. 如权利要求2所述的卷烟包装密封度的检测装置，包括电磁阀(7)，所述电磁阀(7)设于所述真空发生装置(4)，所述控制器(6)电连接所述电磁阀(7)，以通过所述电磁阀(7)调节所述真空发生装置(4)的抽吸流量。
  4. 如权利要求1所述的卷烟包装密封度的检测装置，包括吸盘组件(8)，所述吸盘组件(8)包括：
    盘体(81)，用于吸附所述被测卷烟包装(a)，且覆盖所述通气管道(2)与被测卷烟包装(a)的连接处；以及
    负压管道(82)，连接所述盘体(81)的内部，用于形成负压，以使所述盘体(81)吸附所述被测卷烟包装(a)；所述通气管道(2)设于所述负压管道(82)内；
    所述吸盘组件(8)被配置为用于实现所述通气管道(2)的第一端与所述被测卷烟包装(a)的连接处的密封。
  5. 如权利要求1所述的卷烟包装密封度的检测装置，其中，所述真空发生装置(4) 包括真空泵或真空发生器。
  6. 如权利要求1所述的卷烟包装密封度的检测装置，其中，所述压力传感器(3)包括压差传感器，用于检测所述腔室(1)内、外的压差。
  7. 如权利要求1所述的卷烟包装密封度的检测装置，其中，所述流量计(5)包括体积流量计或质量流量计。
  8. 一种卷烟包装密封度的测试方法，采用如权利要求1所述的卷烟包装密封度的检测装置，所述测试方法包括：
    将被测卷烟包装(a)放置在腔室(1)内；
    将通气管道(2)的第一端与被测卷烟包装(a)的内部连通，且将通气管道(2)的第一端与被测卷烟包装(a)的连接处形成密封；将通气管道(2)的第二端设于腔室(1)的外部；
    通过真空发生装置(4)使腔室(1)内形成负压；
    通过压力传感器(3)检测腔室(1)内的压力；
    根据压力传感器(3)检测到的压力值调节真空发生装置(4)，以使腔室(1)内的压力达到且维持在预设压力范围内；
    在腔室(1)内的压力维持在预设压力范围内时，根据流量计(5)检测的流量值判断被测卷烟包装(a)的密封性：在流量值小于等于流量预设值的情况下，判断被测卷烟包装(a)的密封性好，在流量值大于流量预设值的情况下，判断被测卷烟包装(a)的密封性差。
  9. 如权利要求8所述的卷烟包装密封度的测试方法，其中，
    所述卷烟包装密封度的检测装置包括控制器(6)，所述控制器(6)电连接所述压力传感器(3)和所述真空发生装置(4)；
    所述根据压力传感器(3)检测到的压力值调节真空发生装置(4)，以使腔室(1)内的压力达到且维持在预设压力范围内，包括：
    通过控制器(6)根据压力传感器(3)检测到的压力值调节真空发生装置(4)的抽吸流量，以使腔室(1)内的压力达到且维持在预设压力范围内。
  10. 如权利要求8的卷烟包装密封度的测试方法，其中，
    所述卷烟包装密封度的检测装置包括吸盘组件(8)，吸盘组件(8)包括盘体(81)和负压管道(82)；
    所述将通气管道(2)的第一端与被测卷烟包装(a)的连接处形成密封，包括：
    将盘体(81)覆盖通气管道(2)的第一端与被测卷烟包装(a)的连接处；
    将通气管道(2)套设在负压管道(82)的外部，且连通盘体(81)的内部；
    将负压管道(82)内形成负压，以使盘体(81)吸附被测卷烟包装(a)，使被测卷烟包装(a)与通气管道(2)的第一端的连接处紧密接触，形成密封。
PCT/CN2019/101599 2019-06-17 2019-08-20 卷烟包装密封度的检测装置及方法 WO2020252882A1 (zh)

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