WO2022057251A1 - 用于在线检测卷烟小盒的包装密封度的系统 - Google Patents

用于在线检测卷烟小盒的包装密封度的系统 Download PDF

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Publication number
WO2022057251A1
WO2022057251A1 PCT/CN2021/087496 CN2021087496W WO2022057251A1 WO 2022057251 A1 WO2022057251 A1 WO 2022057251A1 CN 2021087496 W CN2021087496 W CN 2021087496W WO 2022057251 A1 WO2022057251 A1 WO 2022057251A1
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Prior art keywords
conveyor belt
cigarette
detection
detection box
box cover
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PCT/CN2021/087496
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English (en)
French (fr)
Inventor
李斌
王爽
王乐
胡瑞林
李嘉康
张柯
邓楠
黄锋
张齐
付丽丽
张明建
王兵
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中国烟草总公司郑州烟草研究院
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Priority claimed from CN202010971214.9A external-priority patent/CN114264436B/zh
Application filed by 中国烟草总公司郑州烟草研究院 filed Critical 中国烟草总公司郑州烟草研究院
Priority to JP2023517724A priority Critical patent/JP2023544688A/ja
Priority to EP21868089.0A priority patent/EP4215892A1/en
Priority to US18/245,519 priority patent/US20230366770A1/en
Priority to KR1020237012066A priority patent/KR20230069146A/ko
Publication of WO2022057251A1 publication Critical patent/WO2022057251A1/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
    • 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
    • G01M3/3272—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 for verifying the internal pressure of closed containers
    • 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
    • G01M3/3209—Details, e.g. container closure devices

Definitions

  • the invention relates to the field of tobacco detection, and more particularly, to a system for online monitoring of the sealing degree of packaging of cigarette packs.
  • Cigarette packaging is the last link in the production of finished cigarettes, and the tightness of cigarette packs has an important impact on the quality of cigarettes.
  • the accurate detection of the tightness of cigarette packs is not only the premise of ensuring the interests of consumers, but also the premise of guiding cigarette manufacturers to improve the cigarette packaging process and the quality of cigarette products.
  • Cigarette Small Box According to the industry standard YC/T140-1998 "Inflation Method for Determination of Sealing Degree of Cigarette Small Box" formulated by the State Tobacco Monopoly Administration, this method is only suitable for measuring the tightness of soft pack cigarettes, and the test accuracy is not high, so this method has been abolished .
  • Chinese Patent Publication No.: CN 104792470 A discloses a method for measuring the tightness of cigarette packs, which is based on pressure sensing-based detection of the tightness of cigarette packages, and can identify the location of air leakage.
  • Chinese Patent (Publication No.: CN 207662572 U) discloses a device for detecting the tightness of cigarette packages, including a testing host A and a heat sealer B, which can intuitively determine the tightness and leakage of cigarette packages.
  • Chinese Patent (Publication No.: CN 103969423 B) discloses a method and device for detecting the tightness of cigarette packaging transparent paper based on pressure sensing, so that a pressure difference is generated between the inside and the external environment of the cigarette pack; the pressure value of the external environment of the cigarette pack is collected in real time, Until the inner and outer pressures of the cigarette pack reach equilibrium; the pressure change curve is obtained according to the pressure value of the external environment of the cigarette pack at each moment; the sealing degree of the transparent paper of the cigarette package is determined according to the pressure change rate.
  • the present invention provides a system for on-line detection of the packaging tightness of cigarette packets.
  • the detection system can detect the packaging tightness of cigarette packets one by one with high throughput online, thereby realizing online quality control. .
  • the detection system comprises: a first conveyor belt; a plurality of detection box bases, the plurality of detection box bases are arranged on the first conveyor belt at predetermined intervals, and the cigarette packets to be tested are sequentially conveyed to each detection box base a second conveyor belt, the second conveyor belt is arranged above the first conveyor belt, and the center plane of the second conveyor belt coincides with the center plane of the first conveyor belt; a plurality of detection box covers, the plurality of detection box covers are in predetermined
  • the spacing is set on the second conveyor belt, each detection box cover is a cuboid structure with an inner cavity and one end face is open and has a slit on one side, and the detection box cover located on the lower end face of the second conveyor belt during the detection passes through The opening cooperates with the base of the detection box directly below to accommodate the cigarette packet in the cavity; and a detection probe, the detection probe is arranged just below the lower end face, and is connected with the detection box cover during detection.
  • the one side surface is in contact with and aligne
  • the detection probe may include: a sealing device tangential to the one side surface to seal the detection box cover during detection; an air flow conducting device disposed in the center of the sealing device, and communicating with the slit during detection to provide a constant suction air flow to the interior of the detection box lid; and a pressure monitoring element connected to the airflow conducting device to monitor pressure changes in the airflow conducting device.
  • the airflow conducting device may include a negative pressure generating system and a flow controller for generating a constant airflow.
  • p t is the measured pressure outside the cigarette case
  • p t0 is the initial measured pressure outside the cigarette case
  • p e is the final measured pressure when the air pressure inside and outside the cigarette case is balanced
  • V 1 is the cigarette small case.
  • the outer volume of the box body, t is the time
  • KB is the Boltzmann constant (1.38 ⁇ 10 -23 J/K)
  • T is the absolute temperature of the ideal gas
  • m is the average molecular mass of air (29 ⁇ 1.67 ⁇ 10-27 kg)
  • A is the area of the gas overflow hole of the cigarette pack.
  • each of the plurality of test box bases may include: a hard bottom plate fixed on the first conveyor belt; and a soft gasket disposed on the hard bottom a bottom plate; and a fixing piece, the fixing piece is arranged on the soft sealing gasket and used for fixing the cigarette pack.
  • the detection system according to the present invention may further include a cigarette pack rejecting device, the cigarette pack rejecting device is arranged downstream of the first conveyor belt in the conveying direction of the cigarette packets, so as to reject cigarettes whose sealing degree exceeds a preset threshold value. small box.
  • the running speed of the first conveyor belt is the same as the running speed of the second conveyor belt.
  • the time during which the detection probe is in contact with the slit may be between 0.05s and 0.1s.
  • the second conveyor belt may have an inverted trapezoidal structure.
  • each of the plurality of detection box covers may be made of a rigid material.
  • FIG. 1 is a schematic diagram of the overall structure of a detection system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a measuring mechanism according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a detection box base according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the detection process of the detection system according to the present invention.
  • the detection system includes a motion mechanism and a measurement mechanism, wherein the motion mechanism includes a first conveyor belt 1 and a second conveyor belt 2, the measurement mechanism includes a plurality of detection boxes and detection probes 3, among the plurality of detection boxes Each of these is composed of a detection box cover 4 and a detection box base 5, as shown in FIG. 1 .
  • a plurality of detection box bases 5 are arranged on the first conveyor belt 1 at predetermined intervals, and the cigarette packets 6 to be tested are sequentially conveyed to each detection box base 5 .
  • the second conveyor belt 2 is arranged above the first conveyor belt 1 , and the center plane of the second conveyor belt coincides with the center plane of the first conveyor belt.
  • the second conveyor belt may have an inverted trapezoidal structure, as shown in FIG. 1 .
  • a plurality of detection box covers 4 are arranged on the second conveyor belt 2 at predetermined intervals, each detection box cover is a rectangular parallelepiped structure with an inner cavity and an open end surface, and has a slit 41 on one side surface.
  • the detection box cover 4 located on the lower end face of the second conveyor belt 2 cooperates with the detection box base 5 directly below through the opening, so as to accommodate the cigarette packet in the cavity.
  • the size of the test box cover matches the size of the test box base to fit over the test box base during testing.
  • the detection box cover can be made of hard materials, such as stainless steel, aluminum alloy, engineering plastics, and the like.
  • the detection probe 3 is disposed just below the lower end face of the second conveyor belt 2, and is in contact with the one side surface of the detection box cover 4 during detection and is aligned with the slit 41, so as to detect the detection probe located at the Detects the tightness of the packaging of the cigarette packets inside the lid.
  • the detection system according to the present invention can adjust the number of detection box covers, the number of detection box bases, the running speed of the first conveyor belt and the running speed of the second conveyor belt according to actual needs.
  • the operating speed of the first conveyor belt may be the same as the operating speed of the second conveyor belt.
  • the detection box cover 4 runs to the lower end face of the first conveyor belt 2 , it just fits with the detection box base 5 .
  • the running speed of the detection box is matched with the running speed of the cigarette pack, thereby realizing the sequential detection of the sealing degree of the cigarette pack. Therefore, the detection system according to the present invention can detect the package sealing degree of the cigarette packets on-line with high throughput, so as to realize the on-line quality control.
  • the detection probe 3 may further include a sealing device 31 , an air flow conducting device 32 and a pressure monitoring element 33 , as shown in FIG. 2 .
  • the sealing device 31 is tangent to the side of the detection box cover forming the slit 41 to seal the detection box cover during detection.
  • the airflow conducting means 32 is arranged in the center of the sealing means 31 and communicates with the slit 41 during the detection, so as to provide a constant suction air flow to the inside of the detection box cover.
  • the time for the detection probe to be in contact with the slit during detection may be between 0.05s and 0.1s.
  • the airflow conducting device 32 may include a negative pressure generating system and a flow controller for generating a constant airflow.
  • a pressure monitoring element 33 is connected to the airflow conducting means 32 to monitor pressure changes of said airflow conducting means. Since the small package of cigarettes has a certain air permeability, the pressure change of the airflow conduction device will inevitably be caused during the sealing process between the detection probe and the detection box. Further, the pressure change is represented by the following formula:
  • p t is the measured pressure outside the cigarette case
  • p t0 is the initial measured pressure outside the cigarette case
  • p e is the final measured pressure when the air pressure inside and outside the cigarette case is balanced
  • V 1 is the cigarette small case.
  • the outer volume of the box body, t is the time
  • KB is the Boltzmann constant (1.38 ⁇ 10 -23 J/K)
  • T is the absolute temperature of the ideal gas
  • m is the average molecular mass of air (29 ⁇ 1.67 ⁇ 10-27 kg)
  • A is the area of the gas overflow hole of the cigarette pack.
  • the gas overflow hole area of the cigarette pack can be obtained by fitting the pressure change detection curve, which can reflect the packing tightness of the cigarette pack.
  • each detection box base 5 may include a hard bottom plate 51 , a soft sealing gasket 52 and a fixing member 53 .
  • the hard bottom plate 51 is fixed on the first conveyor belt 1
  • the soft gasket 52 is arranged on the hard bottom plate 51 .
  • the fixing member 53 is arranged on the soft sealing pad 52 for fixing the cigarette pack 6 .
  • the detection box cover matches the size of the detection box base. When the detection box cover is matched with the detection box base, the detection box cover squeezes the soft sealing gasket 52 to realize the storage of the cigarette pack and the sealing of the detection box.
  • the sealing of the detection box means that the inner cavity of the detection box is communicated with the outside only through the slit on the side end face of the detection box cover.
  • the detection system according to the present invention may further include a cigarette pack rejecting device 7, which is arranged downstream of the first conveyor belt 1 in the conveying direction of the cigarette packets, so as to reject the sealing degree exceeding a predetermined level. Thresholded cigarette packets.

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Abstract

一种用于在线检测卷烟小盒(6)的包装密封度的系统，包括：第一传送带(1)；以预定间距设置在第一传送带(1)上的多个检测盒底座(5)，卷烟小盒(6)被依次输送到每一个检测盒底座(5)上；设置在第一传送带(1)的上方的第二传送带(2)，第二传送带(2)的中心面与第一传送带(1)的中心面重合；以预定间距设置在第二传送带(2)上的多个检测盒盖(4)，每一个检测盒盖(4)在一个侧面上都具有狭缝(41)，检测期间位于第二传送带(2)的下端面的检测盒盖(4)与正下方的检测盒底座(5)配合；和检测探头(3)，检测探头(3)在检测期间对准狭缝(41)，以通过狭缝(41)检测位于检测盒盖(4)内的卷烟小盒(6)的包装密封度。该系统能够以高通量在线逐包检测卷烟小盒(6)的包装密封度，从而实现在线质量控制。

Description

用于在线检测卷烟小盒的包装密封度的系统 技术领域
本发明涉及烟草检测领域，更具体地，涉及一种用于在线监测卷烟小盒的包装密封度的系统。
背景技术
卷烟包装是成品卷烟的最后一个生产环节，卷烟小盒包装的密封度对卷烟的品质有着重要的影响。卷烟小盒包装密封度的准确检测，不仅是保证消费者利益的前提，同时也是指导卷烟生产企业改进卷烟包装工艺、提高卷烟产品品质的前提。
根据国家烟草专卖局制定的行业标准YC/T140-1998《卷烟小盒密封度的测定充气法》，该方法只适用于软包卷烟的密封度测量，测试精度不高，因此该方法已被废止。中国专利(公开号：CN 104792470 A)公开了一种卷烟小盒包装密封度的测量方法，该方法是基于压力传感的卷烟包装密封度检测，且能够辨别出漏气点位置。中国专利(公开号：CN 207662572 U)公开了一种卷烟包装密封度检测装置，包括测试主机A和热封仪B，能够直观断定卷烟包装密封度和泄露部位。中国专利(公开号：CN 103969423 B)公开了一种基于压力传感的卷烟包装透明纸密封度检测方法和装置，使烟包内、外部环境产生压差；实时采集烟包外部环境压强值，直到烟包内、外部压强达到平衡；根据各个时刻的烟包外部环境压强值，获取压强变化曲线；根据压强变化速率确定卷烟包装透明纸密封度。
上述所有方法均是基于实验室离线分析，不能实现生产线上卷烟小盒包装的逐包检测，因此只能实现卷烟小盒包装密封度的质量追溯，不能实现在线质量控制。
发明内容
为了解决上述问题，本发明提供一种用于在线检测卷烟小盒的包装密封度的系统，所述检测系统能够以高通量在线逐包检测卷烟小盒的包装密封度，从而实现在线质量控制。
根据本发明的检测系统包括：第一传送带；多个检测盒底座，所述多个检测盒底座以预定间距设置在第一传送带上，待检测的卷烟小盒被依次输送到每一个检测盒底座上；第二传送带，所述第二传送带设置在第一传送带的上方，并且第二传送带的中心面与第一传送带的中心面重合；多个检测盒盖，所述多个检测盒盖以预定间距设置在第二传送带上，每一个检测盒盖都是具有内部空腔且一个端面开口的长方体结构且在一个侧面上具有狭缝，并且检测期间位于第二传送带的下端面的检测盒盖通过所述开口与正下方的检测盒底座配合，以将卷烟小盒容纳在空腔内；和检测探头，所述检测探头设置在所述下端面的正下方，并且在检测期间与检测盒盖的所述一个侧面相接触并对准狭缝，以通过狭缝检测位于检测盒盖内的卷烟小盒的包装密封度。
根据一个实施例，检测探头可以包括：密封装置，所述密封装置在检测期间与所述一个侧面相切以密封检测盒盖；气流传导装置，所述气流传导装置设置在密封装置的中央，并且在检测期间与狭缝连通，以便将恒定的抽吸气流提供到检测盒盖的内部；和压力监测元件，所述压力监测元件连接到气流传导装置，以监测气流传导装置的压力变化。
可选地，气流传导装置可以包括负压发生系统和用于产生恒定气流的流量控制器。
进一步地，所述压力变化由以下公式表示：
Figure PCTCN2021087496-appb-000001
式中：p t为卷烟小盒盒体外的测量压力，p t0为卷烟小盒盒体外的初始测量压力，p e为卷烟小盒盒体内外气压平衡时的最终测量压力，V 1为卷烟小盒盒体的外体积，t为时间，K B为玻尔兹曼常数(1.38×10 -23J/K)，T为理想气体的绝对温度，m为空气的平均分子质量(29×1.67×10 -27kg)，A为卷烟小盒的气体溢出孔面积。
根据另一个实施例，多个检测盒底座中的每一个都可以包括：硬质底板，所述硬质底板固定在第一传送带上；软质密封垫，所述软质密封垫设置在硬质底板上；和固定件，所述固定件设置在软质密封垫上并用于固定卷烟小盒。
可选地，根据本发明的检测系统还可以包括烟包剔除装置，所述烟包剔除装置在卷烟小盒的输送方向上设置在第一传送带的下游，以剔除密封度超过预设阈值的卷烟小盒。
优选地，第一传送带的运行速度与第二传送带的运行速度相同。
根据一个示例，检测探头在检测期间与狭缝接触的时间可以在0.05s～0.1s之间。
可选地，第二传送带可以具有倒梯形结构。
根据另一个示例，多个检测盒盖中的每一个都可以由硬质材料制成。
附图说明
本发明的上述及其它方面和特征将从以下结合附图对实施例的说明清楚呈现，其中：
图1是根据本发明实施例的检测系统的整体结构示意图；
图2是根据本发明的一个实施例的测量机构的结构示意图；
图3是根据本发明的另一个实施例的检测盒底座的结构示意图；以及
图4是根据本发明的检测系统的检测过程示意图。
实施发明的最佳方式
下面参照附图详细描述本发明的说明性、非限制性实施例，对根据本发明的用于在线检测卷烟小盒的包装密封度的系统进行进一步说明。
根据本发明的检测系统包括运动机构和测量机构，其中所述运动机构包括第一传送带1和第二传送带2，所述测量机构包括多个检测盒和检测探头3，所述多个检测盒中的每一个都由检测盒盖4和检测盒底座5构成，如图1中所示。
具体地，多个检测盒底座5以预定间距设置在第一传送带1上，待检测的卷烟小盒6被依次输送到每一个检测盒底座5上。第二传送带2设置在第一传送带1的上方，并且所述第二传送带的中心面与所述第一传送带的中心面重合。例如，所述第二传送带可以具有倒梯形结构，如图1中所示。多个检测盒盖4以预定间距设置在第二传送带2上，每一个检测盒盖都是具有内部空腔且一个端面开口的长方体结构，并且在一个侧面上具有狭缝41。在检测期间位于第二传送带2的下端面的检测盒盖4通过所述开口与正下方的检测盒底座5配合，以将卷烟小盒容纳在所述空腔内。检测盒盖的尺寸与检测盒底座的尺寸相匹配，以便在检测期间套在所述检测盒底座上。例如，检测盒盖可以由硬质材料制成，例如不锈钢、铝合金、工程塑料等。检测探头3 设置在第二传送带2的所述下端面的正下方，并且在检测期间与检测盒盖4的所述一个侧面相接触并对准狭缝41，以通过狭缝41检测位于所述检测盒盖内的卷烟小盒的包装密封度。
根据本发明的检测系统可以根据实际需要调节检测盒盖的数量、检测盒底座的数量、第一传送带的运行速度和第二传送带的运行速度。例如，第一传送带的运行速度可以与第二传送带的运行速度相同。当检测盒盖4运行至第一传送带2的下端面时，刚好与检测盒底座5相配合。检测盒的运行速度与卷烟小盒的运行速度相匹配，从而实现卷烟小盒包装密封度的依次检测。因此，根据本发明的检测系统能够以高通量在线逐包检测卷烟小盒的包装密封度，从而实现在线质量控制。
根据本发明的一个实施例，检测探头3可以进一步包括密封装置31、气流传导装置32和压力监测元件33，如图2中所示。密封装置31在检测期间与检测盒盖的形成狭缝41的侧面相切以密封所述检测盒盖。气流传导装置32设置在密封装置31的中央，并且在检测期间与狭缝41连通，以便将恒定的抽吸气流提供到所述检测盒盖的内部。优选地，检测探头在检测期间与所述狭缝接触的时间可以在0.05s～0.1s之间。根据一个可选实施例，气流传导装置32可以包括负压发生系统和用于产生恒定气流的流量控制器。压力监测元件33连接到气流传导装置32，以监测所述气流传导装置的压力变化。由于卷烟小盒包装具有一定的透气性，在检测探头与检测盒之间密封的过程中必然会引起气流传导装置的压力变化。进一步地，压力变化由以下公式表示：
Figure PCTCN2021087496-appb-000002
式中：p t为卷烟小盒盒体外的测量压力，p t0为卷烟小盒盒体外的初始测量压力，p e为卷烟小盒盒体内外气压平衡时的最终测量压力，V 1为卷烟小盒盒体的外体积，t为时间，K B为玻尔兹曼常数(1.38×10 -23J/K)，T为理想气体的绝对温度，m为空气的平均分子质量(29×1.67×10 -27kg)，A为卷烟小盒的气体溢出孔面积。卷烟小盒的气体溢出孔面积可以通过对压力变化检测曲线拟合得到，其可以反应卷烟小盒的包装密封度情况。
根据本发明的另一个实施例，每一个检测盒底座5都可以包括硬质底板51、软质密封垫52和固定件53。硬质底板51固定在第一传送带1上，软质密封垫52设置在硬质底板51上。固定件53设置在软质密封垫52上，以用于固定卷烟小盒6。检测盒盖与检测盒底座的尺寸相匹配，当检测盒盖与检测盒底座配合时，检测盒盖挤压软质密封垫52，实现卷烟小盒的收纳和检测盒的密封。所述检测盒的密封是指检测盒内部空腔仅通过检测盒盖侧端面上的狭缝与外界连通。
根据一个优选实施例，根据本发明的检测系统还可以包括烟包剔除装置7，所述烟包剔除装置在卷烟小盒的输送方向上设置在第一传送带1的下游，以剔除密封度超过预设阈值的卷烟小盒。
尽管对本发明的示例性实施例进行了说明，但是显然本领域技术人员可以理解，在不背离本发明的精神和原理的情况下可以对这些实施例进行改变，本发明的保护范围在权利要求书及其等效形式中进行了限定。

Claims (10)

  1. 一种用于在线检测卷烟小盒的包装密封度的系统，包括：
    第一传送带；
    多个检测盒底座，所述多个检测盒底座以预定间距设置在所述第一传送带上，待检测的卷烟小盒被依次输送到每一个检测盒底座上；
    第二传送带，所述第二传送带设置在所述第一传送带的上方，并且所述第二传送带的中心面与所述第一传送带的中心面重合；
    多个检测盒盖，所述多个检测盒盖以预定间距设置在所述第二传送带上，每一个检测盒盖都是具有内部空腔且一个端面开口的长方体结构且在一个侧面上具有狭缝，并且检测期间位于所述第二传送带的下端面的检测盒盖通过所述开口与正下方的检测盒底座配合，以将卷烟小盒容纳在所述空腔内；和
    检测探头，所述检测探头设置在所述下端面的正下方，并且在检测期间与所述检测盒盖的所述一个侧面相接触并对准所述狭缝，以通过所述狭缝检测位于所述检测盒盖内的卷烟小盒的包装密封度。
  2. 根据权利要求1所述的系统，其中，所述检测探头包括：
    密封装置，所述密封装置在检测期间与所述一个侧面相切以密封所述检测盒盖；
    气流传导装置，所述气流传导装置设置在所述密封装置的中央，并且在检测期间与所述狭缝连通，以便将恒定的抽吸气流提供到所述检测盒盖的内部；和
    压力监测元件，所述压力监测元件连接到所述气流传导装置，以监测所述气流传导装置的压力变化。
  3. 根据权利要求2所述的系统，其中，所述气流传导装置包括负压发生系统和用于产生恒定气流的流量控制器。
  4. 根据权利要求2或3所述的系统，其中，所述压力变化由以下公式表示：
    Figure PCTCN2021087496-appb-100001
    式中：p t为卷烟小盒盒体外的测量压力，p t0为卷烟小盒盒体外的初始测量压力，p e为卷烟小盒盒体内外气压平衡时的最终测量压力，V 1为卷烟小盒盒体的外体积，t为时间，K B为玻尔兹曼常数(1.38×10 -23J/K)，T为理想气体的绝对温度，m为空气的平均分子质量(29×1.67×10 -27kg)，A为卷烟小盒的气体溢出孔面积。
  5. 根据权利要求1所述的系统，其中，所述多个检测盒底座中的每一个都包括：
    硬质底板，所述硬质底板固定在所述第一传送带上；
    软质密封垫，所述软质密封垫设置在所述硬质底板上；和
    固定件，所述固定件设置在所述软质密封垫上并用于固定卷烟小盒。
  6. 根据权利要求1所述的系统，还包括：
    烟包剔除装置，所述烟包剔除装置在卷烟小盒的输送方向上设置在所述第一传送带的下游，以剔除密封度超过预设阈值的卷烟小盒。
  7. 根据权利要求1所述的系统，其中，所述第一传送带的运行速度与所述第二传送带的运行速度相同。
  8. 根据权利要求1所述的系统，其中，所述检测探头在检测期间与所述狭缝接触的时间在0.05s～0.1s之间。
  9. 根据权利要求1所述的系统，其中，所述第二传送带具有倒梯形结构。
  10. 根据权利要求1所述的系统，其中，所述多个检测盒盖中的每一个都由硬质材料制成。
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