Cigarette multi-parameter synchronous measuring device

Abstract

The utility model discloses a multi-parameter synchronous measuring device for cigarettes. The multi-parameter synchronous measuring device comprises a measuring head and a negative pressure generating device connected with the measuring head, a detection cavity for mounting a to-be-detected cigarette is formed in the measuring head; the detection cavity is divided into a paper ventilation chamber, a mouth ventilation chamber and a resistance suction chamber along the axial direction, so that when a cigarette to be detected is mounted in the detection cavity, a cigarette paper section and a filter tip section of the cigarette are respectively positioned in the paper ventilation chamber and the mouth ventilation chamber, and the resistance suction chamber is communicated with the end part of the filter tip section; when the cigarette to be detected is mounted in the detection cavity, the paper ventilation chamber, the mouth ventilation chamber and the draw resistance chamber are isolated from one another; and the paper ventilation chamber, the nozzle ventilation chamber and the suction resistance chamber are respectively connected with a paper ventilation detection assembly, a nozzle ventilation detection assembly and a suction resistance detection assembly. The three groups of detection devices perform their own functions, can be started at the same time and do not interfere with each other, so that the purpose of detecting three parameters at the same time is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cigarette measurement, in particular to a cigarette multi-parameter synchronous measurement device. Background Art

[0002] During the production process of cigarettes, samples on the conveyor line (production line) need to be tested. The test parameters include draw resistance, mouthpiece ventilation rate, and cigarette paper ventilation rate.

[0003] The draw resistance of a cigarette is its resistance to airflow. The mouthpiece ventilation rate is the ratio of the amount of air drawn in from the gripped end of the mouthpiece to the junction of the cigarette and filter to the total airflow. The paper ventilation rate is the ratio of the amount of air drawn in through the cigarette paper to the total airflow. These parameters are important factors in controlling the taste, smoke composition, and combustion performance of a cigarette.

[0004] In order to facilitate the detection of the above parameters, the applicant provides a device for measuring the resistance to draw and ventilation of a cigarette (patent number ZL202123429491.6), which includes a measuring head outer cylinder assembly and a PV measuring head assembly; the measuring head outer cylinder assembly includes a measuring head outer cylinder, a base and a PV measuring head cover; a cigarette butt placement seat is provided on the base, the top of the cigarette butt placement seat is used to place cigarette butts, air flow holes are provided on the side walls of the cigarette butt placement seat, and connecting holes are provided between the top of the cigarette butt placement seat and the air flow holes; the PV measuring head assembly includes a PV upper measuring head and a PV lower measuring head; the PV lower measuring head and the base form a resistance to draw measurement space in the measuring head outer cylinder; an air pipe interface is provided on the measuring head outer cylinder, the air pipe interface is connected to the resistance to draw measurement space, and the air pipe interface is connected to an external measuring device.

[0005] However, the ventilation rate detection of the device does not distinguish between the ventilation rate of the cigarette holder and the ventilation rate of the cigarette paper. According to the standard requirements, the ventilation rate of the cigarette holder and the ventilation rate of the cigarette paper need to be measured separately. Therefore, the above-mentioned existing technology is not competent. Utility Model Content

[0006] In view of this, the utility model provides a cigarette multi-parameter synchronous measurement device, which can simultaneously measure the draw resistance, the ventilation rate of the cigarette holder, and the ventilation rate of the cigarette paper.

[0007] In order to solve the above technical problems, the technical solution of the utility model is to adopt a multi-parameter synchronous measurement device for cigarettes, including a measuring head and a negative pressure generating device connected to the energy measuring head; the measuring head includes an open end and a closed end, and is provided with a detection chamber for installing the cigarette to be tested; the detection chamber is divided into a paper ventilation chamber, a mouth ventilation chamber and a draw resistance chamber along the axial direction, so that when the cigarette to be tested is installed in the detection chamber, its cigarette paper section and filter section are respectively located in the paper ventilation chamber and the mouth ventilation chamber, and the draw resistance chamber is arranged at the closed end of the measuring head; and when the cigarette to be tested is installed in the detection chamber, the paper ventilation chamber, the mouth ventilation chamber and the draw resistance chamber are isolated from each other; the paper ventilation chamber The ventilation chamber, mouth ventilation chamber and draw resistance chamber are respectively connected to the paper ventilation detection assembly, the mouth ventilation detection assembly and the draw resistance detection assembly; when performing the test, the airflow passes through the paper ventilation detection assembly, the paper ventilation chamber, the draw resistance chamber and the negative pressure generating device in sequence for detecting the paper ventilation rate; the airflow passes through the mouth ventilation detection assembly, the mouth ventilation chamber, the draw resistance chamber and the negative pressure generating device in sequence for detecting the mouth ventilation rate; the airflow passes through the paper ventilation chamber, the draw resistance chamber, the draw resistance detection assembly and the negative pressure generating device in sequence for detecting the draw resistance; and when performing the paper ventilation rate test, the mouth ventilation rate test and the draw resistance test, the airflow will pass through the cigarette to be tested from the open end of the measuring head and enter the draw resistance chamber.

[0008] As an improvement, the paper ventilation detection assembly and the mouth ventilation detection assembly both include a ventilation pipe and a ventilation rate sensor connected to the ventilation pipe; and the suction resistance detection assembly is a pressure drop sensor.

[0009] As a further improvement, a suction resistance detection branch pipe is provided on the pipeline connecting the suction resistance chamber and the negative pressure generating device, and the suction resistance detection component is connected to the suction resistance detection branch pipe.

[0010] As another further improvement, an electromagnetic valve SV9 is provided in front of the suction resistance detection component; the electromagnetic valve SV9 can switch the passage between the suction resistance detection component and the suction resistance detection branch pipe and the passage between the suction resistance detection component and the suction resistance high-value standard rod; the suction resistance high-value standard rod can be connected to the negative pressure generating device.

[0011] As an improvement, an electromagnetic valve SV11 is provided on the pipeline connecting the high-value standard rod of suction resistance and the negative pressure generating device; the electromagnetic valve SV11 can switch the passage between the negative pressure generating device and the high-value standard rod of suction resistance or the passage between the negative pressure generating device and the suction resistance chamber.

[0012] As an improvement, a solenoid valve SV10 is provided on the pipeline in front of the negative pressure generating device, and the solenoid valve SV10 can switch the passage between the negative pressure generating device and the solenoid valve SV11 and the passage between the negative pressure generating device and the paper ventilation detection component.

[0013] As an improvement, a solenoid valve SV4 is provided on the pipeline connecting the paper ventilation detection component and the paper ventilation chamber. The solenoid valve SV4 can switch the passage between the paper ventilation chamber and the atmosphere and the passage between the paper ventilation chamber and the paper ventilation detection component.

[0014] As an improvement, an electromagnetic valve SV6 is provided on the pipeline connecting the mouth ventilation detection component and the mouth ventilation chamber. The electromagnetic valve SV6 can switch the passage between the mouth ventilation chamber and the mouth ventilation detection component and the passage between the mouth ventilation chamber and the electromagnetic valve SV7; the electromagnetic valve SV7 can be connected to the atmosphere or closed.

[0015] As an improvement, a rectifier and a filter are provided on the pipeline in front of the negative pressure generating device.

[0016] As an improvement, it further comprises an air blowing pipe connected to the suction resistance chamber, wherein the air blowing pipe is connected to an air source and an air flow regulating valve.

[0017] The utility model is beneficial in that:

[0018] In the present invention, a negative pressure generating device generates negative pressure suction, so that the flow rate in the air path is a specified flow rate when the cigarette is unloaded. Then, after cigarettes are loaded, the paper ventilation detection assembly connected to the paper ventilation chamber detects the incoming airflow, thereby determining the ventilation rate of the cigarette paper. Similarly, the mouth ventilation detection assembly connected to the mouth ventilation chamber detects the incoming airflow, thereby determining the ventilation rate of the filter. After the airflow passes through the cigarette, the pressure in the air path is detected by the draw resistance detection assembly. Based on the change in pressure and the unloaded state, the draw resistance of the cigarette can be calculated. The three detection groups each perform their respective functions and can be activated simultaneously without interfering with each other, thereby achieving the purpose of simultaneously detecting three parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 A cross-sectional view of the detection head.

[0021] Figure 3 This is a schematic diagram of the utility model.

[0022] Markings in the figure: 1 detection head, 2 negative pressure generating device, 3 paper ventilation detection assembly, 4 draw resistance detection assembly, 5 mouth ventilation detection assembly, 6 draw resistance high value standard rod, 7 rectifier; 11 paper ventilation chamber, 12 mouth ventilation chamber, 13 draw resistance chamber; 100 cigarettes. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0024] like Figure 1 、 Figure 2 As shown, the utility model provides a multi-parameter synchronous measurement device for cigarettes, comprising a measuring head 1 and a negative pressure generating device 2 connected to the energy measuring head; the measuring head 1 comprises an open end and a closed end, and is provided with a detection chamber for mounting the cigarette to be tested; the detection chamber is divided into a paper ventilation chamber 11, a mouth ventilation chamber 12 and a draw resistance chamber 13 along the axial direction, so that when the cigarette to be tested 100 is mounted in the detection chamber, its cigarette paper section and filter section are respectively located in the paper ventilation chamber 11 and the mouth ventilation chamber 12, and the draw resistance chamber 13 is arranged at the closed end of the measuring head 1; and when the cigarette to be tested 100 is mounted in the detection chamber, the paper ventilation chamber 11, the mouth ventilation chamber 12 and the draw resistance chamber 13 are respectively located in the paper ventilation chamber 11 and the mouth ventilation chamber 12. The air chamber 12 and the draw resistance chamber 13 are isolated from each other. The paper ventilation chamber 11, the mouth ventilation chamber 12, and the draw resistance chamber 13 are respectively connected to the paper ventilation detection assembly 3, the mouth ventilation detection assembly 5, and the draw resistance detection assembly 4. During testing, the airflow sequentially passes through the paper ventilation detection assembly 4, the paper ventilation chamber 11, the draw resistance 13, and the negative pressure generating device 2 to detect the paper ventilation rate; the airflow sequentially passes through the mouth ventilation detection assembly 5, the mouth ventilation chamber 12, the draw resistance chamber 13, and the negative pressure generating device 2 to detect the mouth ventilation rate; and the airflow sequentially passes through the paper ventilation chamber 11, the draw resistance chamber 13, the draw resistance detection assembly 4, and the negative pressure generating device 2 to detect the draw resistance. Furthermore, during the paper ventilation rate, mouth ventilation rate, and draw resistance tests, the airflow passes through the cigarette under test from the open end of the measuring head 1 and enters the draw resistance chamber 13.

[0025] The detection principle of the present invention is to generate negative pressure suction through the negative pressure generating device 2 so that the flow rate in the air path is the specified flow rate when the cigarette 100 is loaded. Then, after the cigarette 100 is loaded, the paper ventilation detection component 3 connected to the paper ventilation chamber 11 detects the air flow of the intake air, so that the ventilation rate of the cigarette paper can be determined. Similarly, the mouth ventilation detection component 5 connected to the mouth ventilation chamber 12 detects the air flow of the intake air, so that the ventilation rate of the filter can be determined. After the airflow passes through the cigarette 100, the suction resistance detection component 4 is used to detect the pressure in the air path. The suction resistance of the cigarette can be calculated based on the change in pressure and the no-load state. The three groups of detection each perform their respective functions and can be turned on simultaneously without interfering with each other, thus achieving the purpose of simultaneously detecting three parameters.

[0026] Specifically, the paper ventilation detection assembly 3 and the nozzle ventilation detection assembly 5 each include a ventilation tube and a ventilation rate sensor connected to the ventilation tube; the draw resistance detection assembly 4 is a pressure drop sensor. The purpose of providing the ventilation tube is to reduce the impact of the environment on the airflow, ensuring a smooth airflow entering the detection.

[0027] In addition, a rectifier 7 and a filter are provided on the pipeline in front of the negative pressure generating device 2, and the negative pressure generated by the negative pressure generating device 2 can form a predetermined flow of air in the air path through the rectifier 7.

[0028] like Figure 3 As shown, in order to achieve multiple functions, the pipeline arrangement of the utility model is as follows:

[0029] I. A suction resistance detection branch pipe is provided on the pipeline connecting the suction resistance chamber 13 and the negative pressure generating device 2, and the suction resistance detection component 4 is connected to the suction resistance detection branch pipe.

[0030] An electromagnetic valve SV9 is arranged in front of the suction resistance detection component 4; the electromagnetic valve SV9 can switch the passage between the suction resistance detection component 4 and the suction resistance detection branch pipe and the passage between the suction resistance detection component 4 and the suction resistance high value standard rod 6; the suction resistance high value standard rod 6 can be connected to the negative pressure generating device 2.

[0031] An electromagnetic valve SV11 is provided on the pipeline connecting the high-value standard rod of suction resistance 6 and the negative pressure generating device 2; the electromagnetic valve SV11 can switch the passage between the negative pressure generating device 2 and the high-value standard rod of suction resistance 6 or the passage between the negative pressure generating device 2 and the suction resistance chamber 13.

[0032] II. A solenoid valve SV4 is provided on the pipeline connecting the paper ventilation detection component 3 and the paper ventilation chamber 11, and the solenoid valve SV4 can switch the passage between the paper ventilation chamber 11 and the atmosphere and the passage between the paper ventilation chamber 11 and the paper ventilation detection component 3.

[0033] III. An electromagnetic valve SV6 is provided on the pipeline connecting the mouth ventilation detection component 5 and the mouth ventilation chamber 12. The electromagnetic valve SV6 can switch the passage between the mouth ventilation chamber 12 and the mouth ventilation detection component 4 and the passage between the mouth ventilation chamber 12 and the electromagnetic valve SV7; the electromagnetic valve SV7 can be connected to the atmosphere or closed.

[0034] IV. It also includes an air blowing pipe connected to the suction resistance chamber 13, and the air blowing pipe is connected to an air source and an air flow regulating valve.

[0035] V. A control air circuit connected to the latex sleeve in the measuring head 1, wherein a solenoid valve SV5 is provided on the control air circuit.

[0036] VI, paper ventilation detection component 3 and mouth ventilation detection component 5 are connected to the vacuum generator via a calibration pipeline; an electromagnetic valve SV10 is provided on the calibration pipeline, and the electromagnetic valve SV10 can switch the passage between the negative pressure generating device 2 and the calibration pipeline and the passage between the negative pressure generating device 2 and the electromagnetic valve SV11.

[0037] The solenoid valves used in this utility model are all three-way solenoid valves, capable of switching between two air paths by switching power on and off. For example, when de-energized, solenoid valve SV9 connects the path between the resistance detection assembly 4 and the resistance detection branch pipe, while when energized, it connects the path between the resistance detection assembly 4 and the resistance high-value standard rod 6. The principles of the remaining solenoid valves are similar and will not be further described here.

[0038] Based on the above-mentioned arrangement of pipelines and solenoid valves, the utility model can achieve the following functions:

[0039] 1. Single measurement of cigarette draw resistance: battery valve SV1 and battery valve SV7 are energized, and the other solenoid valves are de-energized.

[0040] The airflow enters the paper ventilation chamber through the solenoid valve SV4, and enters the draw resistance chamber after passing through the cigarette to be tested. One airflow passes through the solenoid valve SV11 and the solenoid valve SV10 and enters the negative pressure generating device; the other airflow enters the draw resistance detection component through the draw resistance detection branch pipe and the solenoid valve SV9.

[0041] 2. Simultaneously measure the nozzle ventilation rate, paper ventilation rate and suction resistance: solenoid valve SV1, solenoid valve SV4 and solenoid valve SV6 are energized, and the other solenoid valves are de-energized.

[0042] The airflow enters the paper ventilation chamber and mouth ventilation chamber from the paper ventilation detection assembly and the mouth ventilation detection assembly respectively, and enters the draw resistance chamber after passing through the cigarette to be tested. One airflow passes through the solenoid valve SV11 and the solenoid valve SV10 and enters the negative pressure generating device; the other airflow enters the draw resistance detection assembly through the draw resistance detection branch pipe and the solenoid valve SV9.

[0043] 3. Automatic calibration of low draw resistance: Solenoid valve SV1 is energized and the other solenoid valves are de-energized. During this process, the cigarette to be tested has not yet been loaded.

[0044] After the airflow enters the detection chamber from the solenoid valve SV4, one airflow passes through the solenoid valve SV11 and the solenoid valve SV10 and enters the negative pressure generating device; the other airflow passes through the suction resistance detection branch pipe and the solenoid valve SV9 and enters the suction resistance detection component.

[0045] 4. Automatic calibration of high-resistance draw resistance: energize solenoid valves SV1, SV11, and SV9, and de-energize the remaining solenoid valves. During this process, the cigarette to be tested has not yet been loaded.

[0046] The airflow passes through the suction resistance detection component to the solenoid valve SV9, the suction resistance high value standard rod, the solenoid valve SV11, and the solenoid valve SV10 and enters the negative pressure generating device.

[0047] 5. Automatic calibration of ventilation rate 0%: Solenoid valve SV1 is energized and the other solenoid valves are de-energized. During this process, the cigarettes to be tested have not yet been loaded.

[0048] At this time, the paper ventilation detection component and the mouth ventilation detection component are both disconnected from the negative pressure generating device.

[0049] 6. Automatic calibration of ventilation rate to 100%: energize solenoid valves SV1 and SV10, and de-energize the other solenoid valves. During this process, the cigarettes to be tested have not yet been loaded.

[0050] The airflow from the paper ventilation detection assembly and the mouth ventilation detection assembly passes through the calibration pipeline and directly enters the negative pressure generator through the solenoid valve SV10.

[0051] 7. Air blowing (to prevent smoke exhaust obstruction): Solenoid valves SV1, SV3, SV9, and SV10 are energized, while the remaining solenoid valves are de-energized. During this process, the cigarettes to be tested are not loaded.

[0052] The air flow starts from the air source and passes through the air flow regulating valve, solenoid valve SV3, detection chamber, and solenoid valve SV4 and is discharged into the atmosphere.

[0053] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the claims. Persons skilled in the art will appreciate that improvements and modifications may be made without departing from the spirit and scope of the present invention, and such improvements and modifications shall also be considered within the scope of protection of the present invention.

Claims

1. A device for synchronously measuring multiple parameters of cigarettes, characterized by: The invention comprises a measuring head and a negative pressure generating device connected to the energy measuring head; the measuring head comprises an open end and a closed end, and a detection chamber for mounting the cigarette to be tested is provided therein; the detection chamber is divided into a paper ventilation chamber, a mouth ventilation chamber and a draw resistance chamber along the axial direction, so that when the cigarette to be tested is mounted in the detection chamber, its cigarette paper section and filter section are respectively located in the paper ventilation chamber and the mouth ventilation chamber, and the draw resistance chamber is arranged at the closed end of the measuring head; and when the cigarette to be tested is mounted in the detection chamber, the paper ventilation chamber, the mouth ventilation chamber and the draw resistance chamber are isolated from each other; the paper ventilation chamber, the mouth ventilation chamber and the draw resistance chamber are respectively connected to the paper ventilation chamber. detection component, mouth ventilation detection component and draw resistance detection component; when conducting detection, the airflow passes through the paper ventilation detection component, paper ventilation chamber, draw resistance chamber and negative pressure generating device in sequence for paper ventilation rate detection; the airflow passes through the mouth ventilation detection component, mouth ventilation chamber, draw resistance chamber and negative pressure generating device in sequence for mouth ventilation rate detection; the airflow passes through the paper ventilation chamber, draw resistance chamber, draw resistance detection component and negative pressure generating device in sequence for draw resistance detection; and when conducting paper ventilation rate detection, mouth ventilation rate detection and draw resistance detection, the airflow will pass through the cigarette to be tested from the open end of the measuring head into the draw resistance chamber.

2. The device for synchronously measuring multiple parameters of cigarettes according to claim 1, characterized in that: The paper ventilation detection component and the mouth ventilation detection component both include a ventilation pipe and a ventilation rate sensor connected to the ventilation pipe; the suction resistance detection component is a pressure drop sensor.

3. The device for synchronously measuring multiple parameters of cigarettes according to claim 1, characterized in that: A suction resistance detection branch pipe is provided on the pipeline connecting the suction resistance chamber and the negative pressure generating device, and the suction resistance detection component is connected to the suction resistance detection branch pipe.

4. The device for synchronously measuring multiple parameters of cigarettes according to claim 3, characterized in that: An electromagnetic valve SV9 is provided in front of the suction resistance detection component; the electromagnetic valve SV9 can switch the passage between the suction resistance detection component and the suction resistance detection branch pipe and the passage between the suction resistance detection component and the suction resistance high-value standard rod; the suction resistance high-value standard rod can be connected to the negative pressure generating device.

5. The device for synchronously measuring multiple parameters of cigarettes according to claim 4, characterized in that: An electromagnetic valve SV11 is provided on the pipeline connecting the high-value standard rod of suction resistance and the negative pressure generating device; the electromagnetic valve SV11 can switch the passage between the negative pressure generating device and the high-value standard rod of suction resistance or the passage between the negative pressure generating device and the suction resistance chamber.

6. The device for synchronously measuring multiple parameters of cigarettes according to claim 5, characterized in that: A solenoid valve SV10 is provided on the pipeline in front of the negative pressure generating device, and the solenoid valve SV10 can switch the passage between the negative pressure generating device and the solenoid valve SV11 and the passage between the negative pressure generating device and the paper ventilation detection component.

7. The device for synchronously measuring multiple parameters of cigarettes according to claim 1, characterized in that: A solenoid valve SV4 is provided on the pipeline connecting the paper ventilation detection component and the paper ventilation chamber. The solenoid valve SV4 can switch the passage between the paper ventilation chamber and the atmosphere and the passage between the paper ventilation chamber and the paper ventilation detection component.

8. The device for synchronously measuring multiple parameters of cigarettes according to claim 1, characterized in that: An electromagnetic valve SV6 is provided on the pipeline connecting the mouth ventilation detection component and the mouth ventilation chamber. The electromagnetic valve SV6 can switch the passage between the mouth ventilation chamber and the mouth ventilation detection component and the passage between the mouth ventilation chamber and the electromagnetic valve SV7; the electromagnetic valve SV7 can be connected to the atmosphere or closed.

9. The cigarette multi-parameter synchronous measurement device according to claim 1, characterized in that: A rectifier and a filter are provided on the pipeline in front of the negative pressure generating device.

10. The cigarette multi-parameter synchronous measurement device according to claim 1, characterized in that: It also includes an air blowing pipeline connected to the suction resistance chamber, and the air blowing pipeline is connected to an air source and an air flow regulating valve.

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