CN109717507B - Tow balancing device - Google Patents
Tow balancing device Download PDFInfo
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- CN109717507B CN109717507B CN201910052996.3A CN201910052996A CN109717507B CN 109717507 B CN109717507 B CN 109717507B CN 201910052996 A CN201910052996 A CN 201910052996A CN 109717507 B CN109717507 B CN 109717507B
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Abstract
The invention relates to a tow balancing device, comprising: the device comprises a box body, and a driving roller, a pressing roller, a tow guide wheel, a lever device, a spring piece, a driving motor and a control device which are arranged in the box body, wherein the lever device comprises a lever driving arm, a lever driven arm and a lever fulcrum, and the lever driven arm can rotate by taking the lever fulcrum as a center; one end of the spring piece is arranged on the second end part of the lever driven arm, and the other end of the spring piece is fixed on the box body. Above structure can be quick measure tow pulling force to utilize controlling means and driving motor to carry out accurate, quick regulation to the tow pulling force, can effectively guarantee to get into the balanced stability of tow make-up machine tow, improve the filter quality.
Description
Technical Field
The invention relates to the field of cigarette filter rod processing, in particular to a tow balancing device.
Background
The uniformity of the suction resistance of the filter stick of the cigarette is one of the important standards of the quality of the cigarette, and the root cause of the non-uniformity of the suction resistance of the filter stick is that the compactness of tows is not uniform when the filter stick is formed. Different manufacturers and different grades of tows have different compactness, the same grade of tows of the same manufacturer can also cause different compactness due to the instability and pressure deviation of a packing machine, and in addition, the compactness of different parts of the same tow bag is also the reason of the difference of the compactness of the tows.
In order to enable the tows entering the filter rod making machine to have uniform compactness, the compactness is pre-adjusted before the tows enter the filter rod making machine, the compactness of the tows is closely related to the tension of the tows entering the filter rod making machine and the duration of the tension, the optimal pressure can be measured through a field test for a specific filter rod making machine, and if the tows are in a stable state of the optimal tension, the quality of tow forming is the best. However, in the process of forming the tows, the pulling force on the tows can be changed due to various reasons, so that the tows deviate from a stable state, and how to balance the pulling force of the tows and make the tows quickly return to the stable state of the optimal pulling force when the state is changed is a problem which is difficult to solve.
Chinese utility model patent CN2588803Y discloses a silk bundle balancing machine, including the silk bundle package hoist mechanism that lift platform, assembly pulley and electric block constitute, place the silk bundle package on lift platform, set up a photoelectric detection structure tracking detection silk bundle package and go up the plane to control hoist mechanism's action. Along with the consumption of the tows, the hoisting mechanism drives the tow bag to move upwards, so that the movement of the upper plane of the tow bag is controlled in a small range all the time. The photoelectric detection structure is designed into a movable structure, and can do micro movement downwards along with the rising of the tow bag, so that the influence on the suction resistance caused by uneven pressure of the tows in the tow bag is controlled. The balance adjusting means of the structure to the tows is single, the precision is low, the adjusting time is too long, and the efficient production requirement of the cigarette holder cannot be met.
Therefore, a need exists for a strand balancing device that can quickly adjust the tension experienced by the strand.
Disclosure of Invention
The invention aims to provide a tow balancing device which can quickly measure and adjust the tension of a tow and effectively ensure the balance and stability of the tow entering a tow forming machine.
In order to achieve the purpose, the invention adopts the technical scheme that:
a tow balancing device comprising: the device comprises a box body, and a driving roller, a pressing roller, a tow guide wheel, a lever device, a spring piece, a driving motor and a control device which are arranged in the box body, wherein the driving roller, the pressing roller and the tow guide wheel are arranged in parallel, the pressing roller can press tows on the driving roller, and the tow guide wheel is arranged behind the driving roller and can move in the box body; the lever device comprises a lever driving arm, a lever driven arm and a lever fulcrum, wherein the first end part of the lever driving arm is fixedly connected with the tow guide wheel, the second end part of the lever driving arm is fixedly connected with the first end part of the lever driven arm, the lever fulcrum is arranged in the middle of the lever driven arm, and the lever driven arm can rotate by taking the lever fulcrum as the center; one end of the spring leaf is arranged on the second end part of the lever driven arm, and the other end of the spring leaf is fixed on the box body; an angle sensor is arranged on the lever device, and the control device is connected with the angle sensor and the driving motor. The structure can effectively and accurately measure the tension of the tow and timely adjust the tension of the tow through the servo motor.
Preferably, a partition plate is arranged in the box body, the driving roller, the pressing roller and the tow guide wheel are arranged on one side of the partition plate, the driving motor, the lever driving arm, the lever driven arm, the lever fulcrum and the spring piece are arranged on the other side of the partition plate, the lever driven arm and the tow guide wheel are connected through a guide wheel shaft, and the guide wheel shaft is arranged in an arc-shaped guide groove in the partition plate. The partition plate enables the overall structure of the balancing device to be more compact, and interference among all parts is avoided.
Further, in order to measure the rotation angle of the lever device more accurately and conveniently, the angle sensor is arranged near the fulcrum of the lever.
In order to increase the friction force of the tows on the driving roller, the pressing roller is arranged above the driving roller.
Preferably, in order to ensure the speed and the precision of adjustment, the driving motor is a servo motor.
Preferably, the circle center of the arc-shaped guide groove is basically coincident with the center of the fulcrum of the lever.
In order to be able to adjust the tension directly, the mounting position between the spring plate and the lever follower arm is adjustable.
The tow balancing device has the beneficial effects that by adopting the tow balancing device, the tensile force applied to the tows can be accurately measured through the lever device and the spring piece, and the balancing control on the tow tension entering the filter stick forming machine is realized by adjusting and controlling the rotating speed of the tow driving roller; and according to actual need, the tension of the tows can be directly adjusted by adjusting the installation position of the spring, and the balance and stability of the tension of the tows entering the tow forming machine are ensured from multiple aspects.
Drawings
FIG. 1 is a front view of a tow balancing device of the present invention;
FIG. 2 is a left side view of the tow balancing device of the present invention;
FIG. 3 is a rear view of the tow balancing apparatus of the present invention;
FIG. 4 is a schematic diagram of a control device for a tow balancing device according to the present invention.
Detailed Description
The invention relates to a tow balancing device, which is particularly suitable for a cigarette filter forming process, and the invention is further explained by combining the attached drawings of the invention.
Fig. 1 is a front view of the tow balancing device according to the present invention, which can show the overall structure of the tow balancing device more completely, and fig. 2 and 3 show the specific structure of the tow balancing device from the left and rear sides, respectively. The tow balancing device comprises: the device comprises a box body 1, and a driving roller 9, a pressing roller 10, a tow guide wheel 7, a lever device, a spring piece 3, a driving motor and a control device which are arranged in the box body.
The driving roller 9, the pressing roller 10 and the tow guide wheel 11 are arranged in parallel, and the pressing roller 10 can press the tows 2 on the driving roller 9 so as to ensure that the driving roller can draw the tows 2 out of the tow bag 8; preferably, the driving roller 9 and the pressing roller 10 are arranged up and down, so that the tows can be guaranteed to have a larger wrap angle on the driving roller, the friction force between the driving roller and the tows is increased, slipping is prevented, and the drawing quality is further guaranteed.
The tow guide wheel 11 is arranged behind the driving roller 9 and can move in the box body so as to adapt to the change of the tensile force borne by the tows and create conditions for measuring and adjusting the tensile force; preferably, the moving locus of the tow is substantially a circular arc in the vertical direction.
The arrangement mode can ensure that in the working process, the tows bypass the tow guide wheel 11 after passing through the driving roller, are parallelly reversed and are supplied to the filter rod forming machine, and the filter rod forming machine pulls out the tows. The tensile force borne by the tows is influenced by the power provided by the filter stick forming machine, but the power is generally not adjustable; in addition, the tensile force applied to the filament bundle is also influenced by the rotation of the driving roller, under the condition that the power provided by the filter rod forming machine is constant, the slower the rotating speed of the driving roller is, the larger the tensile force (or called tension) applied to the filament bundle is, the faster the rotating speed of the driving roller is, the smaller the tensile force (or called tension) applied to the filament bundle is, and the speed of the driving roller is easy to adjust.
The lever device comprises a lever driving arm 6, a lever driven arm 4 and a lever fulcrum 5, wherein a first end part of the lever driving arm 4 is fixedly connected with a tow guide wheel 7 (the lever driving arm 4 and the tow guide wheel can be coaxially arranged, such as in figure 2, or can be arranged in a non-coaxial manner, such as in figure 3, a position relationship in figure 1 is a schematic diagram, only a connection relationship is shown, and a position relationship is not represented), a second end part of the lever driving arm 6 is fixedly connected with a first end part of the lever driven arm 4, the lever fulcrum 5 is arranged in the middle of the lever driven arm 4, the lever driven arm 4 can rotate by taking the lever fulcrum 5 as a center, the lever driven arm can be arranged in a rotating shaft manner to realize rotation, specifically, the lever fulcrum 5 can be an internal fixed shaft, the lever driven arm 4 is provided with an external fixed shaft sleeved on the fixed shaft, or the lever fulcrum 5, the lever driven arm 4 is provided with a rotating shaft sleeved in the fixed sleeve; in the above structure, the position of the lever device and the tow guide wheel 7 is fixed relatively, and the position change of the tow guide wheel 7 can be converted into the rotation of the lever device.
One end of a spring leaf 3 is arranged on the second end part of a lever driven arm 4, the other end of the spring leaf 3 is fixed on a box body 1, when a tow guide wheel 7 moves to drive a lever device to rotate, the spring leaf 3 can also be deformed, the deformation of the spring leaf means that the spring leaf generates a reaction force resisting the rotation of the tow guide wheel, the lever device can reach a balance state and can not rotate any more, and the tow guide wheel 7 can also not move any more temporarily, at the moment, because the force transmission and the torque are balanced, the larger the pulling force or the tension borne by the tow is, the larger the angle of rotation of the lever device is, the larger the reaction force generated by the spring leaf is, namely the pulling force or the tension borne by the tow is in a certain proportion to the deformation of the spring, and the deformation of the spring is in a certain proportion to the rotation angle of the lever device, the two proportional relations are easy to determine and belong to the conventional technical means in the field; therefore, the deformation of the spring piece 3 can be calculated by measuring the rotation angle of the lever device, and the tension or the tension borne by the tows can be further obtained.
In order to measure the rotation angle of the lever device, the lever device is provided with an angle sensor; in order to realize the automatic adjustment of the pulling force of the tows, the invention also connects an angle sensor and a driving motor with a control device, the angle sensor transmits the measured angle change information of the lever device to the control device, the control device calculates the pulling force (or the tension force) on the tows at present, compares the pulling force with the preset optimal pulling force value, and adjusts the pulling force of the tows by controlling the rotating speed of the driving motor so as to lead the pulling force to approach the preset optimal pulling force; the process of adjusting the tension carries out digital PID operation through a program, and the rotating speed of the driving motor is adjusted in real time, so that the tension of the tows is kept constant.
In a more preferred embodiment, as shown in fig. 2, a partition plate is arranged in the box body 1, the driving roller 9, the pressing roller 10 and the tow guide wheel 9 are arranged on one side of the partition plate, the driving motor, the lever driving arm 6, the lever driven arm 4, the lever fulcrum 5 and the spring piece 3 are arranged on the other side of the partition plate, the lever driven arm and the tow guide wheel are connected through a guide wheel shaft, the guide wheel shaft is arranged in an arc-shaped guide groove on the partition plate, the arc-shaped guide groove enables the movement of the tow guide wheel 9 to be better converted into the rotation movement of the lever device, and further, the center of the arc-shaped guide groove is basically overlapped with the center of the lever fulcrum.
In order to measure the rotation angle of the lever device more accurately, it is preferable that the angle sensor is provided near the fulcrum of the lever so as to measure the rotation angle of the lever follower arm 4 accurately.
In order to ensure the adjusting precision, the driving motor is a servo motor and is connected with the driving roller through a driving shaft, and the driving shaft penetrates through the partition plate.
The circle center of the arc-shaped guide groove is basically overlapped with the center of the lever fulcrum.
In another preferred embodiment of the present invention, the installation position of the spring plate 3 may also be used to directly adjust the tension or tension of the filament bundle, for example, the connection mode between the spring plate and the lever driven arm is set to be the installation position adjustable as shown in fig. 3, by adjusting the installation position of the spring plate 3, the lever can be rotated by an angle on the original basis, the original moment balance is broken, the filament bundle guide wheel 7 is caused to move up and down by a certain distance, the lever device is again brought into a balance state, and the tension or tension of the filament bundle is directly adjusted, the adjustment mode has a large amplitude, and the adjusted tension or tension can also be calculated by the control device. The spring piece 3 has another function of enabling the lever device to swing only within a certain range, and the situation that the tensile force changes too much to cause the strand to break when the speed of the filter rod forming machine changes suddenly is prevented.
The structure diagram of the control device of the invention is shown in figure 4, and comprises a direct current conversion power supply, wherein 220V alternating current can be converted into direct current and is supplied to a high-speed MCU (micro controller Unit), a man-machine interaction interface, an angle sensor and a servo controller, the MCU receives an angle signal of rotation of a lever driven arm 4 measured by the angle sensor, obtains a tension value born by a strand through calculation, compares the tension value with the optimal tension preset in the MCU, generates a control signal for a driving motor (servo motor) through digital PID operation of a program and transmits the control signal to the servo controller, and controls the rotation of the driving motor (servo motor) through the servo controller, so that the tension of the strand is adjusted.
The working process of the tow balancing device is as follows: presetting an optimal tension of a tow in a control device; the tows are compressed between the driving roller and the compression roller through the compression roller; the driving roller rotates, tows are drawn out of the tow bag under the driving of the driving roller, and are parallelly reversed through the tow guide wheel after passing through the driving roller, and are drawn out upwards through a tow outlet at the upper part of the box body by power provided by a tow using device; the process of pulling out the tows upwards enables the tow guide wheel to be subjected to upward tension and move, the movement of the tow guide wheel enables the lever driving arm to drive the lever driven arm to rotate around the lever fulcrum, the lever driven arm is subjected to the reaction force of the spring piece, and the lever driven arm rotates for a certain angle to achieve moment balance; the control device measures the rotation angle of the lever driven arm through the angle sensor, calculates the deformation of the spring and calculates the tensile force born by the tows; the control device compares the measured tow tension with the optimal tension preset in the control device and generates a control signal of the driving motor; the control device adjusts the rotation speed of the driving motor by using the control signal. The method can realize the quick and accurate adjustment of the tension of the tows.
Finally, it should be noted that: while the invention has been described in terms of specific embodiments, it will be apparent to those skilled in the art in light of the teachings herein that the invention can be modified in other ways. The scope of the present invention is defined by the claims, but other embodiments that do not substantially differ from the claims should also be construed as within the scope of the present invention.
Claims (6)
1. A strand balancing device, comprising: the device comprises a box body, and a driving roller, a pressing roller, a tow guide wheel, a lever device, a spring piece, a driving motor and a control device which are arranged in the box body, wherein the driving roller, the pressing roller and the tow guide wheel are arranged in parallel, the pressing roller can press tows on the driving roller, and the tow guide wheel is arranged behind the driving roller and can move in the box body; the lever device comprises a lever driving arm, a lever driven arm and a lever fulcrum, wherein the first end part of the lever driving arm is fixedly connected with the tow guide wheel, the second end part of the lever driving arm is fixedly connected with the first end part of the lever driven arm, the lever fulcrum is arranged in the middle of the lever driven arm, and the lever driven arm can rotate by taking the lever fulcrum as the center; one end of the spring leaf is arranged on the second end part of the lever driven arm, and the other end of the spring leaf is fixed on the box body; an angle sensor is arranged on the lever device, and the control device is connected with the angle sensor and the driving motor;
the box in be provided with the baffle, drive roller, pinch roller, silk bundle guide pulley set up in one side of baffle, drive motor, lever initiative arm, lever driven arm, lever fulcrum, spring leaf set up the opposite side at the baffle, lever driven arm and silk bundle guide pulley between pass through the guide pulley shaft and be connected, the guide pulley shaft install in the arc guide way on the baffle.
2. The tow balancing apparatus of claim 1, wherein: the angle sensor is arranged near the fulcrum of the lever.
3. A tow balancing device according to any one of claims 1-2, wherein: the pressing roller is arranged above the driving roller.
4. The tow balancing apparatus of claim 1, wherein: the driving motor is a servo motor.
5. The tow balancing apparatus of claim 1, wherein: the circle center of the arc-shaped guide groove is basically overlapped with the center of the lever fulcrum.
6. The tow balancing apparatus of claim 1, wherein: the installation position between the spring piece and the lever driven arm is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910052996.3A CN109717507B (en) | 2019-01-21 | 2019-01-21 | Tow balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910052996.3A CN109717507B (en) | 2019-01-21 | 2019-01-21 | Tow balancing device |
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| Publication Number | Publication Date |
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| CN109717507A CN109717507A (en) | 2019-05-07 |
| CN109717507B true CN109717507B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910052996.3A Active CN109717507B (en) | 2019-01-21 | 2019-01-21 | Tow balancing device |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699606A (en) * | 1986-08-18 | 1987-10-13 | Celanese Corporation | Apparatus for detecting and/or controlling tension of a moving web, for example, a filamentary tow utilized in the production of cigarette filters |
| CN87102577A (en) * | 1987-04-04 | 1988-10-19 | 赫尔克里斯有限公司 | Regulate the method and apparatus of filtering rod density and resistance to draw arbitrarily |
| CN2588803Y (en) * | 2002-12-21 | 2003-12-03 | 朱明举 | Fibre group equilibrator |
| CN201444914U (en) * | 2009-06-10 | 2010-05-05 | 珠海醋酸纤维有限公司 | Opener for processing of tow filter rod used for tobacco |
| CN203120975U (en) * | 2013-02-26 | 2013-08-14 | 贵州中烟工业有限责任公司 | Filter stick forming machine tow tension adjusting device |
| CN104302196A (en) * | 2012-03-05 | 2015-01-21 | 蒙特拉德有限公司 | Method and device for supplying filter material to a filter rod forming machine |
| DE202015100671U1 (en) * | 2015-02-11 | 2016-05-16 | Daicel Corporation | Cigarette filter manufacturing device and control unit and processor unit for a cigarette filter manufacturing device |
| EP3225116A1 (en) * | 2014-11-28 | 2017-10-04 | Daicel Corporation | Tow band of cellulose acetate fibers for cigarette filter, cigarette filter, tow band production device, and tow band production method |
-
2019
- 2019-01-21 CN CN201910052996.3A patent/CN109717507B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699606A (en) * | 1986-08-18 | 1987-10-13 | Celanese Corporation | Apparatus for detecting and/or controlling tension of a moving web, for example, a filamentary tow utilized in the production of cigarette filters |
| CN87102577A (en) * | 1987-04-04 | 1988-10-19 | 赫尔克里斯有限公司 | Regulate the method and apparatus of filtering rod density and resistance to draw arbitrarily |
| CN2588803Y (en) * | 2002-12-21 | 2003-12-03 | 朱明举 | Fibre group equilibrator |
| CN201444914U (en) * | 2009-06-10 | 2010-05-05 | 珠海醋酸纤维有限公司 | Opener for processing of tow filter rod used for tobacco |
| CN104302196A (en) * | 2012-03-05 | 2015-01-21 | 蒙特拉德有限公司 | Method and device for supplying filter material to a filter rod forming machine |
| CN203120975U (en) * | 2013-02-26 | 2013-08-14 | 贵州中烟工业有限责任公司 | Filter stick forming machine tow tension adjusting device |
| EP3225116A1 (en) * | 2014-11-28 | 2017-10-04 | Daicel Corporation | Tow band of cellulose acetate fibers for cigarette filter, cigarette filter, tow band production device, and tow band production method |
| DE202015100671U1 (en) * | 2015-02-11 | 2016-05-16 | Daicel Corporation | Cigarette filter manufacturing device and control unit and processor unit for a cigarette filter manufacturing device |
Non-Patent Citations (1)
| Title |
|---|
| 聚丙烯烟用丝束线密度不匀率的影响因素探析;尹翠玉;《合成纤维工业》;19991005;第22卷(第5期);第44-46页 * |
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