CN111920086A - Cut tobacco conveying device, cigarette making and connecting machine and cut tobacco conveying detection method - Google Patents
Cut tobacco conveying device, cigarette making and connecting machine and cut tobacco conveying detection method Download PDFInfo
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- CN111920086A CN111920086A CN202010843780.1A CN202010843780A CN111920086A CN 111920086 A CN111920086 A CN 111920086A CN 202010843780 A CN202010843780 A CN 202010843780A CN 111920086 A CN111920086 A CN 111920086A
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- Prior art keywords
- suction belt
- tobacco
- silk
- conveying device
- cut tobacco
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 69
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 69
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims description 4
- 238000011897 real-time detection Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 9
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 5
- 238000009966 trimming Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- XXUZFRDUEGQHOV-UHFFFAOYSA-J strontium ranelate Chemical compound [Sr+2].[Sr+2].[O-]C(=O)CN(CC([O-])=O)C=1SC(C([O-])=O)=C(CC([O-])=O)C=1C#N XXUZFRDUEGQHOV-UHFFFAOYSA-J 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/39—Tobacco feeding devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/39—Tobacco feeding devices
- A24C5/399—Component parts or details, e.g. feed roller, feed belt
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention discloses a tobacco shred conveying device, a cigarette making and tipping machine and a tobacco shred conveying detection method, relates to the field of tobacco machinery, and aims to improve the uniformity of tobacco shred conveying. The cut tobacco conveying device comprises a cover body, a cut tobacco suction belt, a tensioning assembly and a deformation amount detection device. The silk suction belt comprises a first part and a second part which form a ring shape; the first part is positioned in the cover body, and the second part is positioned outside the cover body to adsorb the cut tobacco; the tensioning assembly is positioned inside the cover body and connected with the silk suction belt, and the tensioning assembly is configured to tension the silk suction belt; the deformation amount detection device is provided inside the cover body and configured to detect a deformation amount of the suction tape. Above-mentioned technical scheme through setting up deflection detection device, has realized the monitoring to the ageing state of suction band, can in time report to the police when discovering that suction band is ageing and shut down, prevents that ageing suction band from influencing cigarette weight.
Description
Technical Field
The invention relates to the field of tobacco machinery, in particular to a tobacco shred conveying device, a cigarette making and connecting machine and a tobacco shred conveying detection method.
Background
The tobacco of the cigarette making machine is conveyed to the suction type tobacco rod conveying unit through the nozzle groove by air jet. The suction type cigarette strip conveying unit comprises a negative-pressure cut tobacco suction belt, the cut tobacco is adsorbed on the surface of the negative-pressure cut tobacco suction belt, and the cut tobacco is conveyed along with the rotation of the cut tobacco suction belt.
The inventor finds that at least the following problems exist in the prior art: along with the operation of equipment, unstable state is produced when the pipe tobacco is conveyed, the uniformity of pipe tobacco conveying is influenced, and finally, the deviation of the weight of a single cigarette is caused.
Disclosure of Invention
The invention provides a tobacco shred conveying device, a cigarette making and tipping machine and a tobacco shred conveying detection method, which are used for improving the uniformity of tobacco shred conveying.
Some embodiments of the present invention provide a cut tobacco conveying device, comprising:
a housing configured to provide support;
a suction belt including a first portion and a second portion forming a loop; the first part is positioned inside the cover body, and the second part is positioned outside the cover body to adsorb tobacco shreds;
a tensioning assembly located inside the housing and connected to the suction belt, the tensioning assembly configured to tension the suction belt; and
and a deformation amount detection device provided inside the cover body and configured to detect a deformation amount of the suction band.
In some embodiments, the tensioning assembly comprises:
a driving wheel configured to drive the filament suction belt to revolve;
the guide wheels comprise more than two guide wheels, and at least two guide wheels are respectively positioned on two sides of the silk suction belt; and
the tensioning wheel is abutted against the inner side of the silk suction belt;
wherein the yarn suction belt is wound around the tension pulley, the guide pulley, and the drive pulley and tensioned, and the deformation amount detection device is configured to detect the amount of deformation of the yarn suction belt by detecting the position of the tension pulley.
In some embodiments, the tensioning assembly further comprises:
the cylinder is in driving connection with the tensioning wheel so that the tensioning force abuts against the inner side of the wire suction belt;
wherein the rodless cavity of the cylinder is filled with gas with constant pressure.
In some embodiments, the deformation amount detecting device includes a position detecting element configured to detect a position of the tension pulley in real time to determine the length of the suction belt.
In some embodiments, the tobacco conveying device further comprises:
and the leveler is arranged outside the cover body and is arranged in parallel with the second part of the silk suction belt, and the distance between the leveler and the second part of the silk suction belt is constructed to be adjustable.
In some embodiments, the trimming member is located at an end of the second portion of the suction band that is adjacent to the downstream end.
Other embodiments of the invention provide a cigarette making and tipping machine, which comprises the tobacco shred conveying device provided by any technical scheme of the invention.
Still other embodiments of the present invention provide a cut tobacco conveying and detecting method, including the steps of:
calculating the deformation of the silk suction belt in real time, wherein the deformation is the difference value between the real-time length and the original length of the silk suction belt;
judging whether the deformation is larger than a threshold value;
and if the deformation amount is larger than the threshold value, stopping the machine.
In some embodiments, the cut tobacco delivery detection method further comprises the steps of:
and if the deformation is larger than the threshold value, sending an alarm signal.
In some embodiments, the real-time detection of the length of the silk suction belt comprises the following steps:
detecting the position of a tensioning wheel of the tensioning assembly in real time;
and calculating the deformation of the wire suction belt according to the real-time position and the original position of the tension wheel.
Above-mentioned technical scheme through setting up deflection detection device, has realized the monitoring to the ageing state of suction band, can in time report to the police when discovering that suction band is ageing and shut down, prevents that ageing suction band from influencing cigarette weight.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of an installation of a tobacco shred conveying device provided by an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a tobacco shred conveying device provided by an embodiment of the invention;
fig. 3 is a schematic flow chart of a cut tobacco conveying detection method according to an embodiment of the present invention.
Detailed Description
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 3.
Some embodiments of the present invention provide a tobacco shred conveying device 10, which includes a cover body 1, a shred suction belt 2, a tensioning assembly 3 and a deformation amount detection device 4. The interior of the cover body 1 is formed with negative pressure, and the negative pressure causes the cut tobacco 20 to be absorbed below the cut tobacco suction belt 2 to form a tobacco strip. The suction band 2 comprises a first portion 21 and a second portion 22 forming a loop; the first portion 21 and the second portion 22 are integral. A first portion 21 is located inside the mask 1 and a second portion 22 is located outside the mask 1 to adsorb the tobacco thread 20. The tension assembly 3 is located inside the cover 1 and connected with the suction band 2, and the tension assembly 3 is configured to tension the suction band 2. The tensioning assembly 3 is jointly tensioned, for example, with a plurality of wheels. The deformation amount detection device 4 is provided inside the cover 1, and is configured to detect the deformation amount of the suction belt 2.
In some embodiments, the tensioning assembly 3 comprises a drive wheel 31, a guide wheel 32 and a tensioning wheel 33. The driving wheel 31 is configured to drive the suction belt 2 to revolve; the guide wheels 32 comprise more than two, and at least two guide wheels 32 are respectively positioned at two sides of the silk suction belt 2; the tension wheel 33 is pressed against the inner side of the silk suction belt 2. Wherein the suction belt 2 is wound around the tension pulley 33, the guide pulley 32, and the drive pulley 31 and tensioned, and the deformation amount detecting device 4 is configured to detect the length of the suction belt 2 by detecting the position of the tension pulley 33.
The driving wheel 31 comprises a pressing disc 31a and a belt wheel 31b, and the pressing disc 31a and the belt wheel 31b are driven to rotate by the main transmission of the rolling machine. The cut tobacco suction belt 2 is driven to rotate so as to convey the cut tobacco 20 to the SE tobacco gun, and after the surplus cut tobacco 20 is trimmed by the leveler 5, the tobacco strips are conveyed to the SE tobacco gun to be wrapped.
The driving wheel 31 and the tension wheel 33 are respectively positioned at both ends of the conveying direction of the yarn suction belt 2, the driving wheel 31 is positioned at the downstream end of the conveying direction of the yarn suction belt 2, and the tension wheel 33 is positioned at the upstream end of the conveying direction of the yarn suction belt 2. The guide wheels 32 include three, respectively, first guide wheels 32a, second guide wheels 32b, and third guide wheels 32 c. The first guide pulley 32a is located on the side where the driving pulley 31 is located, and the second guide pulley 32b and the third guide pulley 32c are located on the side where the tension pulley 33 is located.
The silk suction belt 2 is wound on a pressing disc 31a, a belt wheel 31b, a first guide wheel 32a, a second guide wheel 32b, a fourth guide wheel 32 and a tension wheel 33, the tension wheel 33 is fixed on a piston rod of a cylinder 34 which is described later, and the cylinder 34 pushes the tension wheel 33 to move to the right through the piston to tension the silk suction belt 2.
In some embodiments, the tensioning assembly 3 further comprises a cylinder 34, the cylinder 34 comprising a cylinder bore 341 and a piston rod 342. The piston rod 342 of the cylinder 34 is drivingly connected to the tension pulley 33 so that the tension force is pressed against the inner side of the suction wire belt 2. In which the rodless chamber of the cylinder 34 is fed with gas at a constant pressure.
The air pressure in the cylinder 34 is constant, and normally, the piston is positioned in the middle of the cylinder 34 because the wire suction belt 2 pulls the tension pulley 33. When the suction wire is aged and lengthened, the acting force of the suction wire belt 2 on the tension wheel 33 is reduced, so that the tension wheel 33 extends forwards under the action of the gas pressure in the cylinder 34, and the position of the tension wheel 33 is detected by the position detecting element in real time. From the comparison of the current position with the home position, the position change of the tension pulley 33 along the feeding direction M of the suction belt 2, that is, the deformation amount of the suction belt 2 can be calculated. The aging degree of the silk suction belt 2 can be judged according to the deformation, and after the silk suction belt 2 ages to a certain degree, the PLC of the rolling and connecting machine sends out an alarm signal to stop the rolling and connecting machine.
Therefore, the technical scheme can identify the aging degree of the shred suction belt 2, reduce the gradual reduction of the friction force between the shred suction belt 2 and the tobacco shred 20 caused by the aging of the shred suction belt 2, reduce the occurrence of unstable transmission of the tobacco shred 20, improve the conveying uniformity of the tobacco shred 20 and improve the weight consistency of a single cigarette.
In some embodiments, the deformation amount detecting device 4 includes a position detecting element configured to detect the position of the tension pulley 33 in real time to judge the length of the suction belt 2. The position detection elements are for example various different types of sensors. During initial installation, a position sensor is mounted on the cylinder 34, and the position of the position sensor is adjusted to ensure that the position sensor can sense the change of the position of the piston in the cylinder 34 during the working state. The output of the position sensor is connected to the analog input port of the PLC controller of the cigarette making and tipping machine. An analog position sensor is arranged on the cylinder 34, so that the actual position of the piston can be obtained in real time. And the position sensor signals are transmitted to a PLC of the cigarette making and tipping machine. When the length of the silk suction belt 2 changes, the position of the piston also changes correspondingly, the PLC program judges the state of the silk suction belt 2 according to the variation of the position of the piston, when the variation exceeds a set value, the silk suction belt 2 is considered to be aged, and the operation of the rolling machine is stopped by alarming.
In some embodiments, the cut tobacco conveying device further comprises an flattener 5, the flattener 5 is installed outside the cover body 1, the flattener 5 is arranged in parallel with the second part 22 of the silk suction belt 2, and the distance between the flattener 5 and the second part 22 of the silk suction belt 2 is configured to be adjustable. The distance between the trimming member 5 and the second portion 22 of the suction belt 2 can be adjusted by changing the installation position; alternatively, the trimming member 5 may be provided in a slidable structure, and the specific adjustment may be performed by fixing the trimming member 5 at various positions. The thickness of the required tobacco sticks is adjusted in real time by adjusting the position of the leveler 5 so as to meet different production requirements.
In some embodiments, the trimming member 5 is positioned at an end of the second portion 22 of the suction belt 2 near downstream, such as adjacent the drive wheel 31.
The embodiment of the invention also provides a cigarette making and tipping machine which comprises the tobacco shred conveying device provided by any technical scheme of the invention.
Referring to fig. 1, cut tobacco 20 of a PROTOS 1-8 cigarette making machine is delivered by nozzle slots 30 to a cut tobacco 20 delivery device by air jets.
Referring to fig. 3, some embodiments of the present invention provide a cut tobacco conveying detection method, which may be implemented by using the cigarette making and tipping machine provided in any embodiment of the present invention. The tobacco shred conveying and detecting method comprises the following steps:
and S100, calculating the deformation of the silk suction belt 2 in real time, wherein the deformation refers to the difference between the real-time length and the original length of the silk suction belt 2.
The step S100 specifically includes the following steps: detecting the position of the tensioning wheel 33 of the tensioning assembly 3 in real time; and calculating the deformation of the silk suction belt 2 according to the real-time position and the original position of the tension wheel 33.
S200, judging whether the deformation is larger than a threshold value;
and step S300, if the deformation is larger than the threshold value, stopping the rolling and connecting machine.
In some embodiments, the cut tobacco delivery detection method further comprises the steps of:
and S400, if the deformation is larger than the threshold value, sending an alarm signal.
The steps S300 and S400 are not limited to the execution sequence, and may be performed simultaneously, or the step S300 is performed first, and then the step S400 is performed; alternatively, the order is reversed.
According to the technical scheme, a program is written in a PLC (programmable logic controller) of the cigarette making and tipping machine to judge the state of the silk suction belt 2. First, when the suction belt 2 is replaced, the initial value L1 of the position sensor corresponding to the newly replaced suction belt 2 is recorded. And subsequently, when the cigarette making and tipping machine operates, the real-time value of the position sensor obtained by the real-time detection of the position sensor is L2. When the real-time value L2 minus the initial value L1 is larger than the threshold value L3, the situation that the silk suction belt 2 is aged is judged, the PLC program gives an alarm, and the cigarette making and plug assembling machine is stopped.
In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the scope of the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A tobacco shred conveying device is characterized by comprising:
a housing (1) configured to provide support;
a suction belt (2) comprising a first portion (21) and a second portion (22) forming a loop; the first part (21) is located inside the mask (1) and the second part (22) is located outside the mask (1) to adsorb the tobacco thread (20);
a tensioning assembly (3) located inside the cover body (1) and connected with the silk suction belt (2), wherein the tensioning assembly (3) is configured to tension the silk suction belt (2); and
a deformation amount detection device (4) provided inside the cover body (1) and configured to detect a deformation amount of the suction band (2).
2. Tobacco shred conveying device according to claim 1, wherein the tensioning assembly (3) comprises:
a driving wheel (31) configured to drive the filament suction belt (2) to rotate;
the guide wheels (32) comprise more than two, and at least two guide wheels (32) are respectively positioned on two sides of the silk suction belt (2); and
the tension wheel (33) is abutted against the inner side of the silk suction belt (2);
wherein the yarn suction belt (2) is wound around the tension wheel (33), the guide wheel (32), and the drive wheel (31) and tensioned, and the deformation amount detection device (4) is configured to detect the length of the yarn suction belt (2) by detecting the position of the tension wheel (33).
3. Tobacco shred conveying device according to claim 2, wherein the tensioning assembly (3) further comprises:
the cylinder (34) is in driving connection with the tension wheel (33) so that the tension force is pressed against the inner side of the wire suction belt (2);
wherein the rodless chamber of the cylinder (34) is vented with a gas at a constant pressure.
4. The shredded tobacco conveying device according to claim 3, characterized in that the deformation amount detecting device (4) comprises a position detecting element configured to detect the position of the tension wheel (33) in real time to judge the length of the shred suction belt (2).
5. The tobacco shred conveying device according to claim 1, further comprising:
a flattener (5) installed outside the cover body (1), and the flattener (5) is arranged in parallel with the second part (22) of the silk suction belt (2), and the distance between the flattener (5) and the second part (22) of the silk suction belt (2) is configured to be adjustable.
6. A shredded tobacco conveying device according to claim 5, characterised in that the flattener (5) is located at the end of the second portion (22) of the suction band (2) close downstream.
7. A cigarette making and plug assembling machine, characterized by comprising the tobacco shred conveying device according to any one of claims 1 to 6.
8. The cut tobacco conveying and detecting method is characterized by comprising the following steps of:
calculating the deformation of the silk suction belt in real time, wherein the deformation refers to the difference value between the real-time length and the original length of the silk suction belt;
judging whether the deformation is larger than a threshold value;
and if the deformation amount is larger than the threshold value, stopping the machine.
9. The cut tobacco delivery detecting method according to claim 8, characterized by further comprising the steps of:
and if the deformation is larger than the threshold value, sending an alarm signal.
10. The cut tobacco conveying detection method according to claim 8, wherein the real-time detection of the length of the cut tobacco suction belt comprises the following steps:
detecting the position of a tensioning wheel of the tensioning assembly in real time;
and calculating the deformation of the wire suction belt according to the real-time position and the original position of the tension wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843780.1A CN111920086A (en) | 2020-08-20 | 2020-08-20 | Cut tobacco conveying device, cigarette making and connecting machine and cut tobacco conveying detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010843780.1A CN111920086A (en) | 2020-08-20 | 2020-08-20 | Cut tobacco conveying device, cigarette making and connecting machine and cut tobacco conveying detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111920086A true CN111920086A (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010843780.1A Withdrawn CN111920086A (en) | 2020-08-20 | 2020-08-20 | Cut tobacco conveying device, cigarette making and connecting machine and cut tobacco conveying detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111920086A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118872894A (en) * | 2024-08-23 | 2024-11-01 | 湖北中烟工业有限责任公司 | A method and system for controlling the tensioning of a suction ribbon based on a linear motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256903A (en) * | 1998-12-14 | 2000-06-21 | 豪尼机械制造股份公司 | Method and device for formation of cut tobacco |
| CN1376431A (en) * | 2001-03-23 | 2002-10-30 | 上海新平科工业技术有限公司 | Structure and method for using shred-sucking nylon belt to Great Wall-model cigarette machine |
| CN202407061U (en) * | 2012-02-06 | 2012-09-05 | 安徽中烟工业有限责任公司 | Belt wheel driving device with tobacco shred sucking belt of PASSIM cigarette making machine set |
| CN204362942U (en) * | 2014-12-15 | 2015-06-03 | 河南中烟工业有限责任公司 | A kind of PASSIM plenum chamber structure of cigarette machine |
| EP3412158A1 (en) * | 2017-06-09 | 2018-12-12 | G.D. S.p.A | Unit for forming a stream of tobacco for a cigarette making machine |
| CN209002914U (en) * | 2018-09-29 | 2019-06-21 | 河南中烟工业有限责任公司 | A kind of tensioning device for smoking ribbon of cigarette machine |
-
2020
- 2020-08-20 CN CN202010843780.1A patent/CN111920086A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256903A (en) * | 1998-12-14 | 2000-06-21 | 豪尼机械制造股份公司 | Method and device for formation of cut tobacco |
| CN1376431A (en) * | 2001-03-23 | 2002-10-30 | 上海新平科工业技术有限公司 | Structure and method for using shred-sucking nylon belt to Great Wall-model cigarette machine |
| CN202407061U (en) * | 2012-02-06 | 2012-09-05 | 安徽中烟工业有限责任公司 | Belt wheel driving device with tobacco shred sucking belt of PASSIM cigarette making machine set |
| CN204362942U (en) * | 2014-12-15 | 2015-06-03 | 河南中烟工业有限责任公司 | A kind of PASSIM plenum chamber structure of cigarette machine |
| EP3412158A1 (en) * | 2017-06-09 | 2018-12-12 | G.D. S.p.A | Unit for forming a stream of tobacco for a cigarette making machine |
| CN209002914U (en) * | 2018-09-29 | 2019-06-21 | 河南中烟工业有限责任公司 | A kind of tensioning device for smoking ribbon of cigarette machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118872894A (en) * | 2024-08-23 | 2024-11-01 | 湖北中烟工业有限责任公司 | A method and system for controlling the tensioning of a suction ribbon based on a linear motor |
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Application publication date: 20201113 |