CN113758825A - Pressure-adjustable tobacco shred filling performance measuring method and device - Google Patents
Pressure-adjustable tobacco shred filling performance measuring method and device Download PDFInfo
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- CN113758825A CN113758825A CN202111167022.3A CN202111167022A CN113758825A CN 113758825 A CN113758825 A CN 113758825A CN 202111167022 A CN202111167022 A CN 202111167022A CN 113758825 A CN113758825 A CN 113758825A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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Abstract
A pressure-adjustable tobacco shred filling performance measuring method and a pressure-adjustable tobacco shred filling performance measuring device are characterized in that: the measuring method is characterized in that a negative pressure generating device, a negative pressure cover and a cut tobacco suction belt arranged between the negative pressure cover and a detection chamber are adopted in a cut tobacco detection chamber with the periphery closed, cut tobacco arranged in a feeding groove at the bottom of the detection chamber is adsorbed, the bottom surface of the feeding groove is of a net structure and is used as a negative pressure air inlet, the weight of tobacco materials in a rigid space is calculated by measuring the thickness of the cut tobacco adsorbed on the cut tobacco suction belt in a certain negative pressure condition for a certain time, and then the cut tobacco filling value is obtained. According to the invention, a flexible space is formed by the negative pressure generating device, and the tobacco shred filling value can be effectively and rapidly measured according to the groove length and the groove width of the detection chamber and the compressed height of the tobacco material. The measuring device can reduce the tobacco material crushing loss, the measuring standard is unified, and the accuracy and the repeatability of the tobacco shred filling value measurement are ensured.
Description
Technical Field
The invention relates to the field of quality detection of products in process and finished tobacco shreds in the tobacco industry, in particular to a pressure-adjustable tobacco shred filling performance measuring method and device.
Background
In recent years, the production of high quality, low consumption products has become a key to the survival and development of enterprises in a fierce market competition environment. The quality of the tobacco shreds greatly affects the sensory quality of the cigarettes and the effective operation rate of the cigarette making equipment; the filling capacity of the cut tobacco and the loss in the cut tobacco processing process basically determine the tobacco consumption of a single cigarette box and even influence the consumption of other materials. The tobacco shred filling value is taken as an important index of quality control in the cigarette shred production process, has been widely paid attention and paid attention to by the industry, and therefore, the tobacco shred filling value measuring instrument is widely applied, and a scientific detection means is provided for the quality control of the cigarette shred production in the industry. The tobacco shred filling value tester is used as a special instrument for the tobacco industry, and measurement and verification are required to be carried out to ensure the accuracy and comparability of the sensing data in the using process of the instrument. According to the requirement in tobacco industry standard YC/T152-2001, namely, the "sensing determination of cigarette tobacco shred filling value", of the people's republic of China, the average pressing speed of a measuring head is required to be kept at 19.5mm/s when the filling value of tobacco materials is measured, the technical index of the speed is provided because the final measuring result of the tobacco shred filling value has larger deviation due to the fact that the pressing speed of the measuring head is too high and too low, and the detection accuracy is difficult to guarantee due to the short stroke. In addition, the working principle of the tobacco shred filling instrument is that a certain pressure (9.8N/19.6N) is applied to a certain mass of tobacco shreds, the volume of the tobacco shreds after being stressed for 30s in a container with a certain volume is measured and calculated, and the tobacco shred filling value, namely the volume occupied by each gram of tobacco shreds, is calculated according to the ratio of the changed volume to the tobacco shred mass. The method has certain errors and limitations, one of which is that once the detection indexes of the instrument include the magnitude of applied force and the descending speed drift upwards or downwards, the detection indexes are difficult to find by workers during operation and can be detected only by means of professional technical means, and the detection period of the indexes is one year and the time is long. Secondly, the force application magnitude of the tobacco shred filling instrument is possibly different from the actual production negative pressure of the cigarette making machine, the negative pressure value of each cigarette factory is different, and the guiding significance of the detected filling value to the actual production of the cigarette factory is not obvious. And thirdly, the finished tobacco shreds or the semi-finished tobacco shreds are relatively high in rigidity after being cooled and shaped, and after the tobacco shreds are rigidly pressurized, part of the tobacco shreds are easily crushed and damaged, so that the tobacco materials are wasted.
Patent CN201210000176.8 uses a weighing method to measure the tobacco shred filling value through the corresponding relationship between the weight or its variation and the unit volume, and this method not only measures the mass, but also precisely measures the volume of the tobacco shred under a certain pressure, and can more accurately and reliably reflect the tobacco shred filling value by using the ratio of the volume to the mass. Patent CN201710163715.2 uses the weight and volume of the storage cabinet to obtain the bulk density of the cabinet batch, and performs data conversion to obtain the filling value, but the method has less information of the detection process, and the tobacco shred bulk itself is not uniform under large volume. Patent CN200510086912.6 utilizes X-ray to carry out the pipe tobacco filling value and measures, but above-mentioned method detection technology is complicated to there is the problem in protection security and accuracy, and this application is connected flexible space through negative pressure generating device, and the device is simple, and easy to operate can effective quick survey pipe tobacco filling value.
Disclosure of Invention
The invention aims to provide the pressure-adjustable tobacco shred filling performance measuring method and device based on the prior art, and the method and the device can measure the tobacco shred filling value in an air pressure force application mode, can ensure the accuracy and the repeatability of the measurement of the tobacco shred filling value, can reduce the tobacco material crushing loss, and has unified measuring standard.
The purpose of the invention is realized by the following technical scheme:
a method for measuring the filling performance of tobacco shreds with adjustable pressure features that in a tobacco shred test chamber with enclosed periphery, a negative pressure generator, a negative pressure hood and a tobacco shred sucking band between said negative pressure hood and test chamber are used to suck the tobacco shreds in the feeding channel at the bottom of test chamber, and the bottom of feeding channel is a netted structure as negative pressure inlet.
The thickness of the cut tobacco is measured by a height measuring probe arranged on the wall of the detection chamber.
The negative pressure set value under the negative pressure condition is the actual negative pressure value of the shred suction belt of the cigarette factory cigarette machine.
The range of the up-down stroke of the measuring probe is 0-99 mm.
The tobacco shred filling performance measuring device comprises a detection chamber with the periphery closed, a negative pressure cover arranged at the upper end of the detection chamber and a negative pressure generating device communicated with the negative pressure cover, wherein a tobacco shred sucking belt is arranged between the negative pressure cover and the detection chamber, a feeding groove is arranged at the bottom of the detection chamber, the bottom surface of the feeding groove is of a net structure and is used as a negative pressure air inlet, and a tobacco shred thickness measuring probe is arranged on the wall of one side cavity of the detection chamber.
The detection chamber is of a rectangular structure, the upper end edge of the detection chamber is connected and sealed with the negative pressure cover, and the feed chute at the bottom of the detection chamber is of a drawer type structure.
The measuring probe is arranged on the wall of the detection chamber, the screw rod is driven by the motor to ascend and descend, the probe is provided with a photoelectric detector, when the measuring probe ascends to the tobacco shred plane, an optical signal of the photoelectric detector is cut off, the probe stops ascending, the computer system records position information, and the tobacco shred thickness is measured through data conversion.
The device also comprises a computer control system, and the control system is connected with the negative pressure generator and the measuring probe through signal wires.
The length, the width and the specification of the detection chamber are close to those of a cut tobacco suction belt of a cigarette making machine, wherein the length and the width of the detection chamber are 15cm and 2 cm.
The measuring principle and process of the invention are as follows:
firstly, before starting detection, after zero calibration is carried out on the position of a height measuring probe, tobacco shreds M (about 20g) with a certain weight are weighed and placed into a feeding groove, the feeding groove is sealed, a negative pressure value (the negative pressure of the tobacco shreds sucked by a cigarette machine in a certain cigarette factory is-8000 pa) connected with a negative pressure generator is set in a calculation control system, and a negative pressure generating device is started; when the negative pressure value is stably controlled at the negative pressure set value, the tobacco material is adsorbed on the tobacco sucking belt between the tobacco material detection chamber and the negative pressure cover, and the compressed height value H of the tobacco material detected by the height measuring probe is recorded after the tobacco material is stabilized for 30 seconds. According to the groove width B of the tobacco material detection chamber and the compressed height H of the tobacco material detected by the height measuring probe, the compressed volume V of the tobacco material can be calculated when the tobacco material is set to be in a negative pressure value, and the filling value of the tobacco material adaptive to a certain cigarette factory is calculated according to a filling value calculation formula:
FVCT-cut filler value (cm)3/g)
B-detection Chamber Width (cm)
L-detection chamber length (cm)
H-height (cm) of compressed tobacco shred
M-sample tobacco shred quality (g)
Compared with the prior measurement technology, the invention has the characteristics that: the tobacco shred filling value is measured in an air pressure force application mode, the measuring principle and the stress state of the tobacco shreds in the measuring process are closer to those in actual production, and the authenticity and the accuracy of the tobacco shred filling value measurement are ensured; the adsorption pressure is adjustable, and the measurement requirements of different types of cut tobacco are met; the tobacco shred filling value data measured by the method can be linked with indexes such as weight, hardness, resistance to draw and the like of the cigarette, and data support is provided for the development of new products.
Drawings
FIG. 1 is a schematic structural diagram of a measuring device according to the present invention,
in the figure: 1. the device comprises a negative pressure generating device, 2, a negative pressure cover, 3, a detection chamber, 4, a feed chute, 5, a measuring probe, 6, a computer control system, 7 and a silk suction belt.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the invention relates to a method for measuring pressure-adjustable tobacco shred filling performance, which is characterized in that a negative pressure generating device, a negative pressure cover and a tobacco shred suction belt arranged between the negative pressure cover and a detection chamber are adopted in a tobacco shred detection chamber with the periphery closed, tobacco shreds in a feeding groove arranged at the bottom of the detection chamber are adsorbed, the bottom surface of the feeding groove is of a net structure and is used as a negative pressure air inlet, the weight of tobacco materials in a rigid space is calculated by measuring the thickness of the tobacco shreds adsorbed on the tobacco shred suction belt in a certain negative pressure condition for a certain time, and then the tobacco shred filling value is obtained. The thickness of the cut tobacco is measured by a height measuring probe arranged on the cavity wall of the detection chamber.
The structure of the device for measuring the filling performance of the cut tobacco used by the invention is shown in figure 1: including a confined detection room 3 all around, set up at the negative pressure cover 2 of detection room upper end and with the communicating negative pressure generating device 1 of negative pressure cover, be equipped with between negative pressure cover 2 and detection room 3 and inhale silk area 7, be provided with feed chute 4 in detection room 3 bottom, the feed chute bottom surface is network structure as negative pressure wind entry, be equipped with pipe tobacco thickness measuring probe 5 on the chamber wall of detection room 3 one side, the device still includes computer control system 6, link to each other through the signal line between this control system and negative pressure generating device 1 and the measuring probe 5.
The detection chamber 3 is of a rectangular structure, the upper end edge of the detection chamber is connected with the negative pressure cover 2 and is sealed, and the feeding groove 4 at the bottom of the detection chamber is of a drawer type structure.
The measuring probe 5 is arranged on the outer wall of the detection chamber 3, the screw rod is driven by the motor to ascend and descend, the probe is provided with a photoelectric detector, when the measuring probe ascends to the tobacco shred plane, an optical signal of the photoelectric detector is cut off, the probe stops ascending, the computer system records position information, and the tobacco shred thickness is measured through data conversion.
The length of the detection chamber is 15cm, and the width of the detection chamber is 2 cm.
The measuring method and the measuring process are as follows:
firstly, before starting detection, after zero calibration is carried out on the position of a height measuring probe 5, weighing a certain weight of tobacco shreds M (about 20g) and putting the tobacco shreds into a feed chute 4, sealing the feed chute, setting a negative pressure value connected with a negative pressure generating device 1 in a computer control system 6, and starting the negative pressure generating device; when the negative pressure value is stably controlled at the negative pressure set value, the tobacco material is adsorbed on the tobacco sucking belt 7 between the tobacco material detection chamber 3 and the negative pressure cover 2, and the compressed height value H of the tobacco material detected by the height measuring probe 5 is recorded after the tobacco material is stabilized for 30 seconds. According to the groove width B of the tobacco material detection chamber 3 and the compressed height H of the tobacco material detected by the height measuring probe, the compressed volume V of the tobacco material can be calculated when the tobacco material is set to be in a negative pressure value, and the filling value of the tobacco material adaptive to a certain cigarette factory is calculated according to a filling value calculation formula:
FVCT-cut filler value (cm)3/g)
B-detection Chamber Width (cm)
L-detection chamber length (cm)
H-height (cm) of compressed tobacco shred
M-sample tobacco shred quality (g)
The device is used for detecting the filling value of the tobacco material, and is favorable for guiding the cigarette making machine to reasonably adjust the physical indexes such as the weight, the hardness, the smoking resistance and the like of the cigarettes, the reasonability of a negative pressure set value of a cut tobacco belt of the cigarette making machine of a cigarette factory can also be detected through the device, the tobacco material after being detected by the device is low in breakage degree, and the integrity of the detected material is better. The detection device can be calibrated in real time through the negative pressure value displayed by the computer, and once the negative pressure value is found to be unstable in operation, the abnormality of the equipment can be judged, and the detection cannot be carried out. The calibration cost of using the existing filling force instrument is reduced. In conclusion, the novel tobacco material filling value measuring instrument remarkably improves the guiding significance of the filling value to the cigarette production process.
Claims (9)
1. A pressure-adjustable tobacco shred filling performance measuring method is characterized in that: in a tobacco shred detection chamber with the periphery closed, a negative pressure generating device, a negative pressure cover and a tobacco shred suction belt arranged between the negative pressure cover and the detection chamber are adopted to adsorb the tobacco shreds in a feed chute arranged at the bottom of the detection chamber, the bottom surface of the feed chute is of a net structure and is used as a negative pressure air inlet, the weight of tobacco materials in a rigid space is calculated by measuring the thickness of the tobacco shreds adsorbed on the tobacco shred suction belt in a certain time under a certain negative pressure condition, and then the tobacco shred filling value is obtained.
2. The pressure-adjustable tobacco shred filling performance measuring method according to claim 1, wherein: the thickness of the cut tobacco is measured by a height measuring probe arranged on the wall of the detection chamber.
3. The pressure-adjustable tobacco shred filling performance measuring method according to claim 1, wherein: the negative pressure set value under the negative pressure condition is the actual negative pressure value of the shred suction belt of the cigarette factory cigarette machine.
4. The pressure-adjustable tobacco shred filling performance measuring method according to claim 1 or 2, characterized in that: the range of the up-down stroke of the measuring probe is 0-99 mm.
5. The utility model provides a but pressure regulation's pipe tobacco filling performance measuring device which characterized in that: the tobacco shred thickness measuring device comprises a detection chamber with the periphery sealed, a negative pressure cover arranged at the upper end of the detection chamber and a negative pressure generating device communicated with the negative pressure cover, a tobacco shred sucking belt is arranged between the negative pressure cover and the detection chamber, a feeding groove is arranged at the bottom of the detection chamber, the bottom of the feeding groove is of a net structure and is used as a negative pressure air inlet, and a tobacco shred thickness measuring probe is arranged on the wall of one side cavity of the detection chamber.
6. The tobacco shred filling performance measuring device according to claim 5, wherein: the detection chamber is of a rectangular structure, the upper end edge of the detection chamber is connected and sealed with the negative pressure cover, and the feed chute at the bottom of the detection chamber is of a drawer type structure.
7. The tobacco shred filling performance measuring device according to claim 5, wherein: the measuring probe is arranged on the wall of the detection chamber, the screw rod is driven by the motor to ascend and descend, the measuring probe is a photoelectric detector, when the measuring probe ascends to the tobacco shred plane, an optical signal of the photoelectric detector is cut off, the probe stops ascending, the computer system records position information, and the tobacco shred thickness is measured through data conversion.
8. The tobacco shred filling performance measuring device according to claim 5, wherein: the device also comprises a computer control system, and the control system is connected with the negative pressure generator and the measuring probe through signal wires.
9. The tobacco shred filling performance measuring device according to claim 5, wherein: the length of the detection chamber is 15cm, and the width of the detection chamber is 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111167022.3A CN113758825A (en) | 2021-10-01 | 2021-10-01 | Pressure-adjustable tobacco shred filling performance measuring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111167022.3A CN113758825A (en) | 2021-10-01 | 2021-10-01 | Pressure-adjustable tobacco shred filling performance measuring method and device |
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| Publication Number | Publication Date |
|---|---|
| CN113758825A true CN113758825A (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111167022.3A Pending CN113758825A (en) | 2021-10-01 | 2021-10-01 | Pressure-adjustable tobacco shred filling performance measuring method and device |
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| CN (1) | CN113758825A (en) |
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- 2021-10-01 CN CN202111167022.3A patent/CN113758825A/en active Pending
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