CN209835276U - Lever device for measuring tensile force of tows - Google Patents
Lever device for measuring tensile force of tows Download PDFInfo
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- CN209835276U CN209835276U CN201920093438.7U CN201920093438U CN209835276U CN 209835276 U CN209835276 U CN 209835276U CN 201920093438 U CN201920093438 U CN 201920093438U CN 209835276 U CN209835276 U CN 209835276U
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Abstract
The utility model relates to a measure tensile lever means of silk bundle, including lever initiative arm, lever driven arm, lever fulcrum and spring assembly, lever initiative arm first end and silk bundle guide pulley fixed connection, lever initiative arm second end and lever driven arm first end fixed connection, the lever fulcrum sets up at lever driven arm middle part, and lever driven arm can use the lever fulcrum to rotate as the center, and the one end of spring leaf is installed on the second tip of lever driven arm, and the other end of spring leaf is fixed on the box, sets up angle sensor on the lever assembly, and controlling means connects angle sensor. Above structure can be quick measure the tow pulling force to for the quick adjustment of pulling force creates the condition, can effectively guarantee to get into the balanced stability of tow make-up machine tow, improve filter tip shaping quality.
Description
Technical Field
The utility model relates to a cigarette filter rod processing field especially relates to a measure tensile lever means of silk bundle.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a measure tensile lever means of silk bundle, can be quick measure the silk bundle pulling force, for tensile timely adjustment creation condition, effectively guarantee to get into the balance stability of silk bundle make-up machine silk bundle.
In order to achieve the above object, the utility model adopts the following technical scheme:
a lever device for measuring the tension of a tow, which is arranged in a tow balancing device, wherein the tow balancing device further comprises: the box body, and a driving roller, a pressing roller, a tow guide wheel, 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 the tows on the driving roller, 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, a lever fulcrum and a spring device, 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, the lever driven arm can rotate by taking the lever fulcrum as the center, one end of a spring piece is arranged on the second end part of the lever driven arm, the other end of the spring piece is fixed on the box body, an angle sensor is arranged on the lever device, and a control device is connected with the angle sensor and a driving motor. The structure can effectively and accurately measure the tension of the tow.
Specifically, the lever fulcrum is an internal fixed shaft, and an external sleeve sleeved on the fixed shaft is arranged on the lever driven arm; or the lever fulcrum is an external fixed sleeve, and a lever driven arm is provided with a rotating shaft sleeved in the fixed sleeve; in both ways, the rotation of the lever driven arm around the lever fulcrum can be realized.
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.
Beneficial effects of the utility model mainly lie in, adopt lever arrangement, can turn into lever pivoted angle with the pulling force or the tension of silk bundle, realized that the pulling force that receives to the silk bundle is accurate to be measured, for the pulling force adjustment of silk bundle creates the condition, still can pass through the mounted position of adjustment spring, carry out direct adjustment to the silk bundle tension, guarantee the equilibrium stability of the silk bundle tension that gets into the silk bundle make-up machine from many aspects.
Drawings
FIG. 1 is a front view of a lever apparatus for measuring tow tension in accordance with the present invention;
FIG. 2 is a left side view of a lever arrangement for measuring tow tension in accordance with the present invention;
FIG. 3 is a rear view of a lever arrangement for measuring tow tension in accordance with the present invention;
fig. 4 is a schematic diagram of a control device of the lever device for measuring tow tension in the present invention.
Detailed Description
The utility model relates to a measure tensile lever means of silk bundle, the filter tip forming process of specially adapted cigarette production will combine below the utility model discloses the drawing is right the utility model discloses do further explain.
Fig. 1 is a front view of the lever device for measuring tow tension of the present invention, which can completely show the overall structure of the lever device, and fig. 2 and 3 respectively observe the specific structure of the lever device from the left side and the rear side. The lever means set up in the silk bundle balancing unit, the silk bundle balancing unit still include, include: the device comprises a box body 1, and a driving roller 9, a pressing roller 10, a tow guide wheel 7, a lever device and a control device which are arranged in the box body.
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 utility model is provided with an angle sensor on the lever device; and in order to realize the automatic adjustment of the pulling force of the filament bundle, the utility model discloses still connect controlling means with angle sensor and driving motor, angle sensor will record lever apparatus angle change information and transmit to controlling means, controlling means calculates the pulling force (or tension) that the present filament bundle received to do the comparison with the best pulling force value of presetting, and the rethread control driving motor's rotational speed, come to adjust the pulling force of filament bundle, make it approach to the best pulling force of presetting; 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.
The main structure of the lever device can convert the tensile force or the tension of the tows into the rotation angle of the lever, so that the accurate measurement of the tensile force applied to the tows is realized, and conditions are created for the dynamic adjustment of the tensile force of the tows.
Furthermore, in another preferred embodiment of the present invention, the installation position of the spring plate 3 can 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 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, since the original moment balance is broken, the filament bundle guide wheel 7 can be moved up and down by a certain distance, the lever device is again made to reach a balanced state, so as to directly adjust the tension or tension of the filament bundle, 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.
In a specific tow balancing device, a driving roller 9, a pressing roller 10 and a tow guide wheel 11 are arranged in parallel, and the pressing roller 10 can press a tow 2 on the driving roller 9 so as to ensure that the driving roller can draw the tow 2 out of a 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 top of silk bundle guide pulley sets up the silk mouth, is filter forming device behind the silk mouth, and filter forming device provides power and takes out the silk bundle from the silk mouth.
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 pulling force that the silk bundle received still receives the pivoted influence of drive roller, and under the certain circumstances of power that the filter rod making machine provided, the rotational speed of drive roller is slower, and the pulling force that the silk bundle received (or call tension) is bigger, and the rotational speed of drive roller is faster, and the pulling force that the silk bundle received (or call tension) is smaller, and the speed of drive roller is more easily adjusted, the utility model discloses a key is just through adjusting the rotational speed of drive roller, and then adjusts pulling force (or tension) in the silk bundle, makes it maintain in the best pulling force within range.
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 utility model discloses well controlling means structure picture is shown in FIG. 4, including direct current switching power supply, can be with 220V alternating current conversion for the direct current, and provide high-speed MCU (Microcontroller Unit; little the control Unit), man-machine interface, angle sensor and servo controller, MCU accepts the lever driven arm 4 pivoted angle signal that angle sensor measured, draw the pulling force value that the silk bundle bore through calculating, and compare with the best pulling force of predetermineeing in the MCU, carry out digital PID operation through the procedure and produce the control signal to driving motor (servo motor), and send servo controller to, rotation through servo controller control driving motor (servo motor), thereby realize the regulation to the silk bundle pulling force.
The application process of lever arrangement 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: although the invention has been described in terms of specific embodiments, other modifications of the invention will be apparent to those skilled in the art in light of the teachings herein. The protection scope of the present invention is limited by the scope of the claims, but other technical solutions that are insubstantially different from the claims of the present invention should also be considered within the protection scope of the present invention.
Claims (7)
1. A lever device for measuring the tension of a tow, which is arranged in a tow balancing device, wherein the tow balancing device further comprises: the box to and install drive roll, pinch roller, silk bundle guide pulley, driving motor, the controlling means in the box, drive roll, pinch roller, silk bundle guide pulley parallel arrangement, pinch roller can compress tightly the silk bundle on drive roll, the silk bundle guide pulley setting behind drive roll and can remove its characterized in that in the box: the lever device comprises a lever driving arm, a lever driven arm, a lever fulcrum and a spring device, 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, the lever driven arm can rotate by taking the lever fulcrum as the center, one end of a spring piece is arranged on the second end part of the lever driven arm, the other end of the spring piece is fixed on the box body, an angle sensor is arranged on the lever device, and a control device is connected with the angle sensor.
2. A lever device according to claim 1, wherein: the lever fulcrum is an internal fixed shaft, and an external sleeve sleeved on the fixed shaft is arranged on the lever driven arm.
3. A lever device according to claim 1, wherein: the lever fulcrum is an external fixed sleeve, and a rotating shaft sleeved in the fixed sleeve is arranged on the lever driven arm.
4. A lever device according to claim 1, wherein: the box body of the tow balancing device is internally provided with a partition plate, 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 is connected with the tow guide wheel through a guide wheel shaft, and the guide wheel shaft is arranged in an arc-shaped guide groove on the partition plate.
5. A lever device according to claim 1, wherein: the angle sensor is arranged near the fulcrum of the lever.
6. A lever device according to claim 4, wherein: the circle center of the arc-shaped guide groove is basically overlapped with the center of the lever fulcrum.
7. A lever device according to 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 |
|---|---|---|---|
| CN201920093438.7U CN209835276U (en) | 2019-01-21 | 2019-01-21 | Lever device for measuring tensile force of tows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920093438.7U CN209835276U (en) | 2019-01-21 | 2019-01-21 | Lever device for measuring tensile force of tows |
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| Publication Number | Publication Date |
|---|---|
| CN209835276U true CN209835276U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920093438.7U Active CN209835276U (en) | 2019-01-21 | 2019-01-21 | Lever device for measuring tensile force of tows |
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| CN (1) | CN209835276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548542A (en) * | 2021-07-12 | 2021-10-26 | 三一海洋重工有限公司 | Cable winding and unwinding control method, device and system for hoisting equipment |
| US20230125809A1 (en) * | 2021-10-27 | 2023-04-27 | GM Global Technology Operations LLC | Dynamic control of human-tethered e-pallet |
-
2019
- 2019-01-21 CN CN201920093438.7U patent/CN209835276U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113548542A (en) * | 2021-07-12 | 2021-10-26 | 三一海洋重工有限公司 | Cable winding and unwinding control method, device and system for hoisting equipment |
| CN113548542B (en) * | 2021-07-12 | 2023-03-14 | 三一海洋重工有限公司 | Cable winding and unwinding control method, device and system for hoisting equipment |
| US20230125809A1 (en) * | 2021-10-27 | 2023-04-27 | GM Global Technology Operations LLC | Dynamic control of human-tethered e-pallet |
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