CN113740558B - Filter stick transmitting and receiving speed on-line velometer - Google Patents
Filter stick transmitting and receiving speed on-line velometer Download PDFInfo
- Publication number
- CN113740558B CN113740558B CN202110973245.2A CN202110973245A CN113740558B CN 113740558 B CN113740558 B CN 113740558B CN 202110973245 A CN202110973245 A CN 202110973245A CN 113740558 B CN113740558 B CN 113740558B
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- optical coupler
- singlechip
- connecting plate
- transparent glass
- filter stick
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- 239000011521 glass Substances 0.000 claims abstract description 22
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 230000003287 optical effect Effects 0.000 claims description 37
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Measurement Of Radiation (AREA)
Abstract
The invention relates to an on-line velocimeter for the transmitting and receiving speed of a filter rod, which belongs to the technical field of cigarette filter rod production and comprises a positioning block, a front connecting plate, a photoelectric sensor, a rear connecting plate, a nixie tube protecting cover, an organic transparent glass tube, a lower light blocking block and an installation box.
Description
Technical Field
The invention belongs to the technical field of cigarette filter stick production, and particularly relates to an on-line velometer for filter stick transmitting and receiving speeds.
Background
In the production process of cigarettes, the filter sticks produced in a forming workshop are required to be conveyed to a wrapping workshop through a transmitting pipeline. The specific working mode is that a filter stick transmitter of a forming workshop transmits filter sticks produced by the forming machine to a filter stick receiver of a wrapping workshop through a pipeline by air pressure, and the receiver receives and collects the filter sticks and then is used for a cigarette making machine to roll and produce cigarettes.
The filter stick transmitter is connected with the receiver through a pipeline, and the transmitter forms certain pressure in the pipeline by adjusting and setting the transmitting air pressure, namely, the transmitting line speed of the filter stick in the pipeline is changed, and the filter stick is pushed to the receiver at a high speed. Because the speed of the receiver for receiving the emission of the filter stick is in a certain range, when the emission air pressure is too high, the emission line speed is too high and exceeds the speed range of the receiver, the quality and other problems of a contact, wrinkles and mess stick can occur, and the normal conveying of the filter stick is directly affected; when the emission air pressure is too low, insufficient emission pressure is very easy to occur, the emission speed of the filter stick is too slow, the problems of filter stick pipe blockage and the like are caused, and the on-line supply guarantee of the filter stick in cigarette production is directly influenced.
In order to realize the matching of the sending speed of the filter stick of the transmitter and the receiving linear speed of the filter stick required by the receivers of different models, the current method adopted by each cigarette factory is a mode of repeatedly adjusting the air pressure of the transmitter module, and the PDCA tracking observation and correction debugging are carried out by observing the conditions of the sending/receiving stability of the filter stick of the receiver and the transmitter for a long time until the air pressure sent by the transmitter module is matched with the linear speed required by the receiver, so that the debugging work is time-consuming, laborious and non-intuitive.
Disclosure of Invention
In order to overcome the problems in the background technology, the invention provides an on-line velometer for the transmitting and receiving speed of a filter stick, which can be quickly arranged at the outlet of a transmitting pipeline of a transmitter or the inlet of a transmitting pipe of a receiver, and can be used for measuring the linear speed of the filter stick in a connecting pipeline between the transmitter and the receiver in real time. According to the speed of a conveying line in a filter rod pipeline measured by a velometer, debugging personnel are intuitively guided to adjust the air pressure of the filter rod emitted by a transmitter, the linear speed of the filter rod in the pipeline is rapidly controlled in an optimal linear speed receiving range matched with different types of receivers, a series of filter rod conveying resistance pipes caused by mismatching of the linear speed of the filter rod in the pipeline and the linear speed received by the receivers are greatly reduced, the problems of high failure rate of the transmitter and the receiver and waste of a large number of filter rods in the filter rod emitting/receiving links are effectively solved, and the online supply guarantee rate of the filter rods in cigarette production is effectively improved.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the utility model provides an online velometer of filter rod emission receiving speed, including locating piece 1, preceding connecting plate 4, photoelectric sensor 5, back connecting plate 6, charactron 7, charactron protection casing 8, organic transparent glass tube 9, lower light blocking piece 10, install case 11, singlechip 12, the top left and right sides of install case 11 install a locating piece 1 respectively, be provided with the screw hole on two locating pieces 1, the both ends of organic transparent glass tube 9 are installed on the screw hole of two locating pieces 1 through threaded connection's mode respectively, front connecting plate 4 and back connecting plate 6 that are parallel to each other are still installed at the top of installing case 11 between two locating pieces 1, the through-hole that is convenient for organic transparent glass tube 9 to pass is offered on connecting plate 4 and the back connecting plate 6, photoelectric sensor 5 fixed mounting is between front connecting plate 4 and back connecting plate 6, and be located the top of organic transparent glass tube 9, the below of organic transparent glass tube 9 is provided with light blocking piece 10 between front connecting plate 4 and the back connecting plate 6, photoelectric sensor 5 passes through signal processing circuit and is connected with singlechip 12, the protection casing 8 of one of locating piece 1 installs in the charactron the top protection casing 8, install the charactron 7 and singlechip 12, the charactron is installed in the digital tube 11, the singlechip is installed to the digital tube 12.
Further, the signal processing circuit is connected with the singlechip 12 through two optical coupling modules.
Further, the joint of the organic transparent glass tube 9 and the positioning block 1 is sealed through an oil seal 2, and the oil seal 2 is limited on the positioning block 1 through a clamping ring 3.
The invention has the beneficial effects that:
the invention can be arranged at the outlet of the emission pipeline or the inlet of the receiver emission pipe, the organic transparent glass pipe can be matched with the emission pipeline and the receiver emission pipe to realize the transmission of the filter rod, the real-time measurement of the on-line speed of the filter rod is realized in the transmission production process of the filter rod, the transmission speed of the filter rod can be intuitively known by a debugging personnel, the air pressure of the filter rod emitted by the transmitter is regulated according to the real-time speed, the on-line speed of the filter rod in the pipeline is rapidly controlled in the optimal on-line speed receiving range matched by the receivers of different types, the problems that a series of filter rod conveying resistance pipes are caused by the mismatching of the on-line speed of the filter rod in the pipeline and the on-line speed received by the receivers are greatly reduced, the failure rate of the transmitter and the receivers is high, and the loss and waste of a large number of filter rods in the transmission/receiving links of the filter rod are effectively improved, and the on-line supply guarantee rate of the filter rod is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic diagram of a control circuit according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.
As shown in fig. 1-3, an on-line velometer for the transmitting and receiving speed of a filter stick comprises a positioning block 1, a front connecting plate 4, a photoelectric sensor 5, a rear connecting plate 6, a nixie tube 7, a nixie tube protective cover 8, an organic transparent glass tube 9, a lower light blocking block 10, an installation box 11 and a singlechip 12, wherein the left and right sides of the top of the installation box 11 are respectively provided with the positioning block 1, the two positioning blocks 1 are provided with threaded holes, the two ends of the organic transparent glass tube 9 are respectively arranged on the threaded holes of the two positioning blocks 1 in a threaded connection manner, the top of the installation box 11 between the two positioning blocks 1 is also provided with the front connecting plate 4 and the rear connecting plate 6 which are parallel to each other, and through holes which are convenient for the organic transparent glass tube 9 to pass are arranged on the connecting plate 4 and the rear connecting plate 6. The photoelectric sensor 5 is fixedly arranged between the front connecting plate 4 and the rear connecting plate 6 and is positioned above the organic transparent glass tube 9, a lower light blocking block 10 is arranged below the organic transparent glass tube 9 between the front connecting plate 4 and the rear connecting plate 6, the photoelectric sensor 5 is connected with the singlechip 12 through a signal processing circuit, a nixie tube protective cover 8 is fixedly arranged at the top of one positioning block 1, a nixie tube 7 is arranged in the nixie tube protective cover 8, the nixie tube 7 is connected with the singlechip 12, and the singlechip 12 is arranged in the mounting box 11. The whole on-line velometer is arranged at the inlet of a transmitting pipeline outlet or a receiver transmitting pipe, the transmitting pipeline outlet or the receiver transmitting pipe inlet is in threaded connection with a threaded hole formed in a positioning block 1, when the organic transparent glass pipe 9 is communicated with the transmitting pipeline outlet or the receiver transmitting pipe inlet, and when a filter rod is ventilated and conveyed in the transmitting pipeline outlet or the receiver transmitting pipe, the front end of the filter rod is used for shielding the photoelectric sensor 5, timing is started, the rear end of the filter rod is separated from the photoelectric sensor 5, timing is finished, the length of the filter rod is a fixed value, the running time of the filter rod is calculated after the filter rod enters a singlechip 12 through signals of the photoelectric sensor 5, and the running speed of the filter rod is displayed on a nixie tube 7. Therefore, in the transmission production process of the filter stick, real-time measurement of the online speed of the filter stick is realized, a debugging person can intuitively know the transmission speed of the filter stick, the air pressure of the filter stick emitted by the emitter is regulated according to the real-time speed, the online speed of the filter stick in a pipeline is rapidly controlled in an optimal online speed receiving range matched with receivers of different types, a series of filter stick conveying resistance pipes are caused due to mismatching of the online speed of the filter stick in the pipeline and the online speed received by the receivers, the problems of high failure rate of the emitter and the receivers and waste of a large number of filter sticks in the filter stick emitting/receiving links are effectively solved, and the online supply guarantee rate of the filter stick in cigarette production is effectively improved.
In the present invention, the signal processing circuit is connected to the singlechip 12 through two optical coupling modules. The two optical coupling modules are an optical coupler A and an optical coupler B, the input ends 1 and 2 of the optical coupler A and the optical coupler B are respectively connected with 24VDC and a photoelectric sensor 5, the output end 3 of the optical coupler A is grounded, the output end 4 of the optical coupler A is connected with a pull-up resistor to 5VDC, the output end 3 of the optical coupler B is connected with a pull-down resistor to the ground, the output end 4 of the optical coupler B is connected with 5VDC, when a signal is input, the optical coupler A generates a falling edge, the optical coupler B generates a rising edge, otherwise, when the signal is interrupted, the optical coupler A generates a rising edge, the optical coupler B generates a falling edge, when the single chip microcomputer 12 receives a falling edge signal of the optical coupler A, an internal timer is started, when the embedded single chip microcomputer receives a falling edge signal of the optical coupler B, the internal timer of the single chip microcomputer 12 is closed, and finally the linear speed of a filter rod is calculated through the single chip microcomputer 12 and is displayed through a nixie tube 7.
In the invention, preferably, the joint of the organic transparent glass tube 9 and the positioning block 1 is sealed by an oil seal 2, and the oil seal 2 is limited on the positioning block 1 by a clamping ring 3.
The working process of the invention comprises the following steps:
the filter stick transmitting/receiving speed on-line velometer is connected and combined with a quick plug of a filter stick transmitting pipe through threads on the positioning block 1 and is connected in series to a transmitting pipeline of a filter stick transmitter or a filter stick receiver, the pipeline is sealed reliably after being connected through the organic transparent glass pipe 9 and oil seals 2 at two ends, and the running air pressure of the filter stick in the organic transparent glass pipe 9 is consistent with that of the filter stick transmitter or the filter stick receiver. When the front end of the filter stick passes through the photoelectric sensor 5, the optical coupler A generates a falling edge, the optical coupler B generates a rising edge, the singlechip 12 starts an internal timer when receiving a falling edge signal of the optical coupler A, when the rear end of the filter stick leaves the photoelectric sensor 5, the optical coupler A generates a rising edge, the optical coupler B generates a falling edge, and the singlechip 12 closes the internal timer when receiving a falling edge signal of the optical coupler B. The length of the filter stick is a fixed value, and the singlechip 12 can calculate the passing speed of the filter stick according to the passing time value of the filter stick and the length of the filter stick and display the passing speed of the filter stick through the nixie tube 7.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (2)
1. An on-line velometer for the transmitting and receiving speed of a filter stick is characterized in that: the filter stick transmitting and receiving speed on-line velometer comprises a positioning block (1), a front connecting plate (4), a photoelectric sensor (5), a rear connecting plate (6), a nixie tube (7), a nixie tube protective cover (8), an organic transparent glass tube (9), a lower light blocking block (10), a mounting box (11) and a singlechip (12), wherein the left side and the right side of the top of the mounting box (11) are respectively provided with one positioning block (1), the two positioning blocks (1) are provided with threaded holes, the two ends of the organic transparent glass tube (9) are respectively arranged on the threaded holes of the two positioning blocks (1) in a threaded connection mode, the top of the mounting box (11) between the two positioning blocks (1) is also provided with the front connecting plate (4) and the rear connecting plate (6) which are parallel to each other, through holes which the organic transparent glass tube (9) can pass through are formed in the connecting plate (4) and the rear connecting plate (6), the photoelectric sensor (5) is fixedly arranged between the front connecting plate (4) and the rear connecting plate (6) and is positioned above the organic transparent glass tube (9), the photoelectric sensor (4) is arranged below the singlechip (9) and the photoelectric sensor (10) is connected with the singlechip (10) through the light blocking circuit, a nixie tube protective cover (8) is fixedly arranged at the top of one positioning block (1), a nixie tube (7) is arranged in the nixie tube protective cover (8), the nixie tube (7) is connected with a singlechip (12), and the singlechip (12) is arranged in a mounting box (11);
the signal processing circuit is connected with the singlechip (12) through two optical coupling modules, the two optical coupling modules are an optical coupler A and an optical coupler B respectively, the input ends 1 and 2 of the optical coupler A and the optical coupler B are respectively connected with 24VDC and a photoelectric sensor (5), the output end 3 of the optical coupler A is grounded, the output end 4 is connected with a pull-up resistor to 5VDC, the output end 3 of the optical coupler B is connected with a pull-down resistor to the ground, the output end 4 is connected with 5VDC, when a signal is input, the optical coupler A generates a falling edge, the optical coupler B generates a rising edge, otherwise, when the signal is interrupted, the optical coupler A generates a rising edge, the optical coupler B generates a falling edge, when the singlechip (12) receives a falling edge signal of the optical coupler A, an internal timer is started, when the embedded singlechip receives the falling edge signal of the optical coupler B, the internal timer of the singlechip (12) is closed, and finally, the linear speed of a filter rod is calculated through the singlechip (12) and is displayed through the nixie tube (7).
2. The on-line velometer for filter rod transmitting and receiving speeds according to claim 1, characterized in that: the joint of the organic transparent glass tube (9) and the positioning block (1) is sealed through an oil seal (2), and the oil seal (2) is limited on the positioning block (1) through a clamping ring (3).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110973245.2A CN113740558B (en) | 2021-08-24 | 2021-08-24 | Filter stick transmitting and receiving speed on-line velometer |
| DE102022121220.3A DE102022121220A1 (en) | 2021-08-24 | 2022-08-23 | ONLINE SPEED MEASURING DEVICE FOR THE TRANSMISSION AND RECEIVING SPEED OF FILTER RODS |
| DE202022104749.9U DE202022104749U1 (en) | 2021-08-24 | 2022-08-23 | On-line speed measuring device for the transmission and reception speed of filter rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110973245.2A CN113740558B (en) | 2021-08-24 | 2021-08-24 | Filter stick transmitting and receiving speed on-line velometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113740558A CN113740558A (en) | 2021-12-03 |
| CN113740558B true CN113740558B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110973245.2A Active CN113740558B (en) | 2021-08-24 | 2021-08-24 | Filter stick transmitting and receiving speed on-line velometer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113740558B (en) |
| DE (2) | DE202022104749U1 (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475576A (en) * | 1973-08-21 | 1977-06-01 | Hauni Werke Koerber & Co Kg | Method and machine for producing filter rods for the tobacco- processing industry |
| WO2005038467A1 (en) * | 2003-10-15 | 2005-04-28 | Korea Railroad Research Institute | Apparatus of measuring speed for railway vehicle and method thereof |
| CN201251584Y (en) * | 2008-09-17 | 2009-06-03 | 程永顺 | Wireless velometer |
| CN101592671A (en) * | 2008-05-30 | 2009-12-02 | 安徽宏实光机电高科有限公司 | The linear array CCD camera velocity measurement shooting interval is with object of which movement speed adaptive method of adjustment |
| CN103236831A (en) * | 2013-04-03 | 2013-08-07 | 浙江中烟工业有限责任公司 | Signal acquisition system and method for cigarette factory filter rod transmitter |
| CN108008143A (en) * | 2017-12-01 | 2018-05-08 | 西安工业大学 | A kind of laser velocimeter devices and methods therefor of bullet exit portal speed |
| CN109580980A (en) * | 2019-01-28 | 2019-04-05 | 西安工业大学 | A kind of high-speed motion body speed detection system and its detection method |
| CN110940826A (en) * | 2019-12-20 | 2020-03-31 | 中国烟草总公司郑州烟草研究院 | Method for detecting tobacco shred movement speed in horizontal pipe dense-phase tobacco shred pneumatic conveying process |
| CN216117667U (en) * | 2021-08-24 | 2022-03-22 | 红云红河烟草(集团)有限责任公司 | Filter stick transmitting and receiving speed on-line velometer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1398439B1 (en) * | 2010-02-02 | 2013-02-22 | Danieli Automation Spa | DEVICE FOR THE SPEED MEASUREMENT OF MOVING PRODUCTS, IN PARTICULAR METALLIC LAMINATED PRODUCTS IN A LAMINATION LINE, AND ITS PROCEDURE |
-
2021
- 2021-08-24 CN CN202110973245.2A patent/CN113740558B/en active Active
-
2022
- 2022-08-23 DE DE202022104749.9U patent/DE202022104749U1/en active Active
- 2022-08-23 DE DE102022121220.3A patent/DE102022121220A1/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475576A (en) * | 1973-08-21 | 1977-06-01 | Hauni Werke Koerber & Co Kg | Method and machine for producing filter rods for the tobacco- processing industry |
| WO2005038467A1 (en) * | 2003-10-15 | 2005-04-28 | Korea Railroad Research Institute | Apparatus of measuring speed for railway vehicle and method thereof |
| CN101592671A (en) * | 2008-05-30 | 2009-12-02 | 安徽宏实光机电高科有限公司 | The linear array CCD camera velocity measurement shooting interval is with object of which movement speed adaptive method of adjustment |
| CN201251584Y (en) * | 2008-09-17 | 2009-06-03 | 程永顺 | Wireless velometer |
| CN103236831A (en) * | 2013-04-03 | 2013-08-07 | 浙江中烟工业有限责任公司 | Signal acquisition system and method for cigarette factory filter rod transmitter |
| CN108008143A (en) * | 2017-12-01 | 2018-05-08 | 西安工业大学 | A kind of laser velocimeter devices and methods therefor of bullet exit portal speed |
| CN109580980A (en) * | 2019-01-28 | 2019-04-05 | 西安工业大学 | A kind of high-speed motion body speed detection system and its detection method |
| CN110940826A (en) * | 2019-12-20 | 2020-03-31 | 中国烟草总公司郑州烟草研究院 | Method for detecting tobacco shred movement speed in horizontal pipe dense-phase tobacco shred pneumatic conveying process |
| CN216117667U (en) * | 2021-08-24 | 2022-03-22 | 红云红河烟草(集团)有限责任公司 | Filter stick transmitting and receiving speed on-line velometer |
Non-Patent Citations (1)
| Title |
|---|
| KDF2滤棒输出装置的改进与仿真分析;佟军民;王冬梅;;机械设计与制造;20170608(06);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022121220A1 (en) | 2023-03-02 |
| CN113740558A (en) | 2021-12-03 |
| DE202022104749U1 (en) | 2022-09-23 |
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