阅读说明：本技术 一种提高供丝均匀性的装置 (Device for improving wire feeding uniformity ) 是由 朱永明 卫剑 尤彬 胡亚凯 郑国栋 王树升 徐玉会 康帅帅 张全雷 于 2019-11-29 设计创作，主要内容包括：本发明提供了一种提高供丝均匀性的装置,其包括风室、底吹气室、位于抛丝腔室中的抛丝辊、气流通道,其还包括贯流叶轮、导流器、位于底吹气室外侧的旋转驱动件,贯流叶轮设置在底吹气室中靠近气流通道的一侧,贯流叶轮与抛丝辊相平行；贯流叶轮的一端通过第一转动轴与底吹气室的一侧转动连接,贯流叶轮的另一端通过第二转动轴与底吹气室的另一侧转动连接；旋转驱动件与贯流叶轮的第一转动轴相连；导流器与贯流叶轮平行；导流器设置在气流通道与底吹气室连通处的中部位置,并靠近贯流叶轮,导流器的两端分别通过连接轴与底吹气室的两侧的固定孔过渡配合。本发明能够使得气流通道获得较为均匀的吹风,有效地避免发生烟丝堵塞风室的现象。(The invention provides a device for improving the uniformity of a silk supply, which comprises an air chamber, a bottom blowing air chamber, a silk throwing roller and an airflow channel, wherein the silk throwing roller is positioned in the silk throwing chamber; one end of the cross-flow impeller is rotatably connected with one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller is rotatably connected with the other side of the bottom blowing air chamber through a second rotating shaft; the rotary driving piece is connected with a first rotating shaft of the cross-flow impeller; the fluid director is parallel to the through-flow impeller; the fluid director is arranged at the middle position of the communication part of the airflow channel and the bottom blowing air chamber and is close to the through-flow impeller, and two ends of the fluid director are in transition fit with the fixing holes at two sides of the bottom blowing air chamber through connecting shafts respectively. The invention can ensure that the air flow channel obtains more uniform air blowing, and effectively avoids the phenomenon that the air chamber is blocked by the tobacco shreds.)

1. A device for improving the uniformity of silk supply comprises an air chamber, a bottom blowing air chamber, a silk throwing chamber positioned above the bottom blowing air chamber, a silk throwing roller positioned in the silk throwing chamber, and an air flow channel, wherein one end of the air flow channel is communicated with the bottom blowing air chamber, the other end of the air flow channel is communicated with the air chamber, and the silk throwing chamber is provided with a silk throwing port communicated with the air flow channel; one end of the cross-flow impeller is rotatably connected with one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller is rotatably connected with the other side of the bottom blowing air chamber through a second rotating shaft; the rotary driving piece is connected with a first rotating shaft of the cross-flow impeller; the flow guider is parallel to the cross flow impeller; the fluid director is arranged at the middle position of the communication position of the airflow channel and the bottom blowing air chamber and is close to the through-flow impeller, and two ends of the fluid director are in transition fit with the fixing holes at two sides of the bottom blowing air chamber through connecting shafts respectively.

2. The device for improving the yarn supply uniformity according to claim 1, further comprising an adjusting knob, wherein the adjusting knob is connected with the connecting shaft, and the adjusting knob is positioned outside the bottom blowing air chamber.

3. The device for improving the yarn supply uniformity according to claim 1, wherein a plurality of poking sheets are arranged on the fluid director, and the poking sheets are uniformly distributed in the extending direction of the fluid director; the extending direction of the poking sheet is perpendicular to the extending direction of the fluid director.

4. The device for improving the wire supply uniformity according to claim 3, wherein the poking sheet is connected with the fluid director through an adjusting screw.

5. The device for improving the uniformity of wire supply according to claim 1, further comprising an air flow guide plate, wherein the air flow channel comprises a first channel and a second channel, the air flow guide plate comprises a left guide plate positioned on the left side of the wire throwing chamber and a right guide plate positioned above the wire throwing chamber, and the left guide plate comprises an upper section guide plate and a lower section guide plate; the first channel is formed between the upper section guide plate and the right guide plate, the second channel is formed between the lower section guide plate and the lower protection arc-shaped plate of the silk throwing chamber, and the silk throwing port is a communication port of the first channel and the silk throwing chamber; one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the bottom blowing air chamber; the fluid director is located between the lower protection arc-shaped plate and the lower section guide plate.

6. The device for improving the wire feeding uniformity as recited in claim 5, wherein a plurality of first ultrasonic vibration generators are arranged on the upper section guide plate, and each first ultrasonic vibration generator is uniformly distributed in the extending direction of the upper section guide plate.

7. The device for improving the wire feeding uniformity as recited in claim 6, wherein a plurality of second ultrasonic vibration generators are arranged on the right guide plate, and each second ultrasonic vibration generator is uniformly distributed in the extending direction of the right guide plate.

8. The device for improving the wire feeding uniformity is characterized in that the upper guide plate comprises a first guide plate and a second guide plate positioned below the first guide plate, and a plurality of first ultrasonic vibration generators are uniformly distributed in the extending direction of the first guide plate.

9. The device for improving the wire feeding uniformity as recited in claim 8, wherein a plurality of the first ultrasonic vibration generators are uniformly distributed in the extending direction of the second guide plate.

10. A device for increasing the uniformity of a supplied filament according to any one of claims 1 to 9, wherein said rotary drive member is a motor.

Technical Field

The invention relates to the technical field of cigarette equipment, in particular to a device for improving the yarn feeding uniformity.

Background

As shown in FIG. 1, the bottom blowing air chamber 11, the throwing roller 12, the air flow passage 13 and the like of the ZJ17 cigarette making machine are important components of the yarn supply system. The tobacco throwing roller 12 throws the tobacco to the air flow path by its rotation and delivers the tobacco to the air chamber 14 by means of the air flow provided by the bottom blowing air chamber 11. Wherein air at a pressure of 12Mbar is supplied through the bottom blowing chamber 11 by a low pressure blower. However, during the operation of the equipment, the phenomenon that the air chamber is blocked by the cut tobacco often occurs, so that the effective operation rate of the equipment is seriously influenced, and after analysis, the reason that the cut tobacco is blocked is mainly caused by the fact that the air blowing provided by the bottom air blowing chamber to the air flow channel is uneven, so that the cut tobacco is uneven. Therefore, how to make the airflow channel obtain more uniform air blowing becomes a problem that needs to be solved urgently by those skilled in the art.

Disclosure of Invention

The invention aims to provide a device for improving the yarn feeding uniformity, so that an airflow channel can be uniformly blown.

In order to achieve the purpose, the invention provides the following technical scheme:

a device for improving the uniformity of silk supply comprises an air chamber, a bottom blowing air chamber, a silk throwing chamber positioned above the bottom blowing air chamber, a silk throwing roller positioned in the silk throwing chamber, an air flow channel, a cross flow impeller, a fluid director which is the same as the extension direction of the cross flow impeller and a rotary driving piece positioned outside the bottom blowing air chamber, wherein one end of the air flow channel is communicated with the bottom blowing air chamber, the other end of the air flow channel is communicated with the air chamber, the silk throwing chamber is provided with a silk throwing opening communicated with the air flow channel, the cross flow impeller is arranged on one side, close to the air flow channel, of the bottom blowing air chamber, and the cross flow impeller is parallel to the silk throwing roller; one end of the cross-flow impeller is rotatably connected with one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller is rotatably connected with the other side of the bottom blowing air chamber through a second rotating shaft; the rotary driving piece is connected with a first rotating shaft of the cross-flow impeller; the flow guider is parallel to the cross flow impeller; the fluid director is arranged at the middle position of the communication position of the airflow channel and the bottom blowing air chamber and is close to the through-flow impeller, and two ends of the fluid director are in transition fit with the fixing holes at two sides of the bottom blowing air chamber through connecting shafts respectively.

Preferably, the bottom blowing air chamber further comprises an adjusting knob, wherein the adjusting knob is connected with the connecting shaft and is positioned on the outer side of the bottom blowing air chamber.

Preferably, the fluid director is provided with a plurality of shifting pieces, and the shifting pieces are uniformly distributed in the extending direction of the fluid director; the extending direction of the poking sheet is perpendicular to the extending direction of the fluid director.

Preferably, the poking sheet is connected with the fluid director through an adjusting screw.

Preferably, the filament throwing device further comprises an airflow guide plate, wherein the airflow channel comprises a first channel and a second channel, the airflow guide plate comprises a left guide plate positioned on the left side of the filament throwing chamber and a right guide plate positioned above the filament throwing chamber, and the left guide plate comprises an upper section guide plate and a lower section guide plate; the first channel is formed between the upper section guide plate and the right guide plate, the second channel is formed between the lower section guide plate and the lower protection arc-shaped plate of the silk throwing chamber, and the silk throwing port is a communication port of the first channel and the silk throwing chamber; one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the bottom blowing air chamber; the fluid director is located between the lower protection arc-shaped plate and the lower section guide plate.

Preferably, a plurality of first ultrasonic vibration generators are arranged on the upper section guide plate, and the first ultrasonic vibration generators are uniformly distributed in the extending direction of the upper section guide plate.

Preferably, a plurality of second ultrasonic vibration generators are arranged on the right guide plate, and the second ultrasonic vibration generators are uniformly distributed in the extending direction of the right guide plate.

Preferably, the upper guide plate comprises a first guide plate and a second guide plate located below the first guide plate, and a plurality of first ultrasonic vibration generators are uniformly distributed in the extending direction of the first guide plate.

Preferably, a plurality of the first ultrasonic vibration generators are uniformly distributed in the extending direction of the second guide plate.

Preferably, the rotary drive is an electric motor.

The invention has the beneficial effects that:

according to the device for improving the tobacco shred supply uniformity, the through-flow impeller is driven by the rotary driving piece to rotate at a high speed, so that air entering the bottom blowing air chamber forms an air curtain under the action of the through-flow impeller, and meanwhile, when the air curtain passes through the fluid director, the air forms a uniform and stable air curtain in the extension direction of the fluid director and then blows to the airflow channel, so that the airflow channel obtains uniform blowing, tobacco shreds can uniformly flow to the air chamber, and the phenomenon that the tobacco shreds block the air chamber is effectively avoided.

Drawings

In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein

FIG. 1 is a schematic view of a conventional filament supply apparatus;

FIG. 2 is a schematic view of an apparatus for improving uniformity of filament feeding according to an embodiment of the present invention;

FIG. 3 is another schematic view of an apparatus for improving uniformity of filament supply according to an embodiment of the present invention;

FIG. 4 is a schematic view of a flow through impeller provided by an embodiment of the present invention;

FIG. 5 is a schematic view of the deflector and the pick according to the embodiment of the present invention;

fig. 6 is another schematic view of an apparatus for improving uniformity of filament feeding according to an embodiment of the present invention.

In the drawings, the reference numbers:

11. a bottom blowing air chamber 12, a throwing roller 13, an air flow channel 14 and an air chamber

21. Bottom blowing air chamber 22, air inlet hole 31, throwing roller 32 and lower protection arc plate

41. Through-flow impeller 42, first rotating shaft 51, flow guider 52 and shifting piece

53. Adjusting knob 61, first guide plate 62, second guide plate 63 and lower guide plate

64. Right guide plate 65, first ultrasonic vibrator 66, second ultrasonic vibrator

71. First channel 72, second channel 81, motor

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.

As shown in fig. 2 to 6, an embodiment of the present invention provides a device for improving uniformity of a supplied filament, which includes a wind chamber, a bottom blowing gas chamber 21, a filament throwing chamber located above the bottom blowing gas chamber, a filament throwing roller 31 located in the filament throwing chamber, an air flow channel, one end of the air flow channel is communicated with the bottom blowing gas chamber, the other end of the air flow channel is communicated with the wind chamber, the filament throwing chamber has a filament throwing port communicated with the air flow channel, the device further includes a through-flow impeller 41, a flow guide 51 having the same extending direction as the through-flow impeller, and a rotary driving member located outside the bottom blowing gas chamber, the through-flow impeller 41 is disposed at one side of the bottom blowing gas chamber close to the air flow channel, and the through-flow impeller is parallel to the filament throwing roller 31; one end of the cross-flow impeller 41 is rotatably connected with one side of the bottom blowing air chamber through a first rotating shaft, and the other end of the cross-flow impeller 41 is rotatably connected with the other side of the bottom blowing air chamber through a second rotating shaft; the rotary driving piece is connected with a first rotating shaft of the cross-flow impeller; the flow guider 51 is parallel to the cross-flow impeller; the fluid director 51 is arranged at the middle position of the communication part of the airflow channel and the bottom blowing air chamber 21 and close to the through-flow impeller, and two ends of the fluid director 51 are in transition fit with the fixing holes at two sides of the bottom blowing air chamber through connecting shafts respectively. It can be understood that, during installation, because the connecting shaft is in transition fit with the fixing holes on the two sides of the bottom blowing air chamber, the posture of the fluid director can be adjusted by rotating the connecting shaft, namely the fluid director is positioned in the middle of the position where the air channel is communicated with the bottom blowing air chamber without blocking the air channel.

According to the device for improving the uniformity of the tobacco shred supply provided by the embodiment of the invention, the through-flow impeller 41 is driven by the rotary driving piece to rotate at a high speed, so that air entering the bottom blowing air chamber forms an air curtain under the action of the through-flow impeller 41, and meanwhile, when the air curtain passes through the fluid director 51, the air forms a relatively uniform and stable air curtain in the extending direction of the fluid director 51 and then is blown to the airflow channel, so that the airflow channel obtains relatively uniform blowing, the tobacco shreds uniformly flow to the air chamber, and the phenomenon that the tobacco shreds block the air chamber is effectively avoided. Moreover, the weight of the cigarette can be influenced due to the uneven tobacco shreds, so that the influence on the weight of the cigarette can be better avoided.

Further, the device for improving the wire supply uniformity further comprises an adjusting knob 52, the adjusting knob 52 is connected with the connecting shaft, and the adjusting knob is located on the outer side of the bottom blowing air chamber, so that the connecting shaft can be conveniently rotated through the adjusting knob, and the posture of the fluid director can be adjusted. Specifically, the fluid director may be an arc structure with a large middle section and two sharp ends, and the cross section of the fluid director may be preferably elliptical.

As shown in fig. 5, in order to make the air blown to the air flow channel more uniform and smooth, a plurality of poking pieces 53 are arranged on the air deflector 51, and each poking piece 53 is uniformly distributed in the extending direction of the air deflector 51; the extending direction of the poking piece 53 is perpendicular to the extending direction of the fluid director 51.

Specifically, the plectrum 53 is connected with the fluid director through an adjusting screw, so that the posture of the plectrum on the fluid director 51 can be adjusted through the adjusting screw, so that the plectrum 53 is inclined to the right at a certain angle in the horizontal direction, that is, inclined to the right at a certain angle in fig. 5, so that the airflow passing through the fluid director 51 can have a forward component velocity while moving upward, that is, the airflow is caused to flow to the right and upward. It will be appreciated that this airflow direction is represented in fig. 6 as flowing to the upper left, i.e., the arrows in fig. 6 indicate the airflow direction. The design is that the cut tobacco is adsorbed by the cut tobacco adsorption belt in the air chamber to move forwards, the air flowing out of the fluid director 51 is slightly forwards, the cut tobacco moves upwards, and the forward component velocity is matched with the cut tobacco adsorption belt, so that the cut tobacco is adsorbed on the cut tobacco adsorption belt.

Further, the device for improving the wire feeding uniformity further comprises an air flow guide plate, the air flow channel comprises a first channel 71 and a second channel 72, the air flow guide plate comprises a left guide plate located on the left side of the wire throwing chamber and a right guide plate 64 located above the wire throwing chamber, and the left guide plate comprises an upper section guide plate and a lower section guide plate 63; the first channel 71 is formed between the upper section guide plate and the right guide plate, the second channel 72 is formed between the lower section guide plate and the lower protection arc-shaped plate 32 of the silk throwing chamber, and the silk throwing port is a communication port between the first channel and the silk throwing chamber; one end of the second channel is communicated with the first channel, and the other end of the second channel is communicated with the bottom blowing air chamber; the fluid director is located between the lower protection arc-shaped plate and the lower section guide plate.

Specifically, the upper guide plate is provided with a plurality of first ultrasonic vibration generators 65, and the first ultrasonic vibration generators are uniformly distributed in the extending direction of the upper guide plate. By adopting the scheme, the first ultrasonic vibration generator 65 is arranged on the upper guide plate through which the cut tobacco and the air flow pass, and the first ultrasonic vibration generator drives each upper guide plate to generate ultrasonic vibration with small amplitude and high frequency during normal work, so that the contact between the cut tobacco and the upper guide plate is changed from continuous contact into intermittent contact during passing, the friction between the cut tobacco and the upper guide plate is reduced, namely, the friction between the cut tobacco and the upper guide plate is reduced by utilizing the ultrasonic antifriction effect, the blocking effect of the upper guide plate on the flow of the cut tobacco is effectively reduced, the possibility of uneven cut tobacco supply is further reduced, and the possibility of blocking an air chamber by the cut tobacco is greatly reduced.

In order to effectively reduce the friction force between the right guide plate 64 and the cut tobacco and further reduce the resistance of the cut tobacco when the cut tobacco flows through the first channel, so as to better improve the uniformity of the cut tobacco supply, a plurality of second ultrasonic vibration generators 66 are arranged on the right guide plate, and the second ultrasonic vibration generators are uniformly distributed in the extending direction of the right guide plate. It will be appreciated that the second ultrasonic vibration generator functions in the same way as the first ultrasonic vibration generator and will not be described in detail here.

It may be preferable that the upper guide plate includes a first guide plate 61, and a second guide plate 62 located below the first guide plate, and a plurality of the first ultrasonic vibration generators are uniformly distributed in an extending direction of the first guide plate 61. It is also preferable that a plurality of the first ultrasonic vibration generators are uniformly distributed in the extending direction of the second guide plate.

In particular, the rotary drive is a motor 81.

When the device for improving the filament supply uniformity provided by the embodiment of the invention is used, air enters the bottom blowing air chamber 21 from an air flow inlet, the cross-flow impeller 41 is driven by the motor to rotate at a high speed, the air forms an air curtain under the action of the cross-flow impeller, the air curtain passes through the fluid director 51, under the action of the fluid director 51 and the shifting sheet 53, the air forms a uniform and stable air curtain in the length direction of the whole air flow channel, namely the extending direction of the fluid director, flows to the first channel through the second channel, the tobacco shreds are thrown upwards under the action of the filament throwing roller, the tobacco shreds pass through the first channel under the action of the uniform air curtain, an air draft is arranged in the air chamber, the tobacco shreds move upwards through the first channel 71 under the combined action of the air curtain and the air draft, and the first guide plate 61, the second guide plate 62 and the right guide plate 64 which are in contact with the two sides of the first channel 71 in the motion process are respectively provided with the first ultrasonic vibration generator 65 and the second ultrasonic vibration generator 66, after the regulation of the regulating device, the three plates form ultrasonic vibration with small amplitude and high frequency, and the original continuous contact of the cut tobacco is changed into intermittent contact when the cut tobacco passes through, so that the flow resistance of the cut tobacco is effectively reduced.

The condition of uniform and stable tobacco shred flow is that the air quantity sent out by the air curtain keeps balance and matching with the air suction quantity of the air chamber, and the air quantity is ensured not to influence the tobacco shred movement due to leakage and lack, so the rotating speed of the through-flow impeller is firstly adjusted. The device for improving the wire supply uniformity provided by the embodiment of the invention comprises the following installation and adjustment methods:

matching wind speed and wind volume: the rotational speed of the cross-flow impeller 41 is adjusted until no wind overflows and no wind is sucked in when the equipment runs in an idle state, and at this time, the rotational speed of the cross-flow impeller 41 (or the rotational speed, current, voltage and the like of the motor) is recorded as an initial adjustment value. When the equipment carries materials, the adjustment is carried out by combining the posture adjustment of the fluid director 51, the rotating speed of the cross-flow impeller is adjusted from the vicinity of the rotating speed of the initial adjustment value, the rotating speed is increased or reduced, and the moving state of the tobacco shreds is observed until the tobacco shreds stably move upwards;

and (3) posture adjustment of the fluid director: analyzing the airflow direction through three-dimensional fluid mechanics analysis software (such as SolidWorks FlowSimuling), wherein when the fluid director is parallel to the middle part of the second channel and rotates clockwise by 8 degrees, the air curtain is stable and is an initial angle; the angle of the right inclination of the plectrum 53 on the fluid director 51 is 20 degrees, when the equipment is in operation with materials, the rotating speed of the cross flow impeller 41 is combined for adjustment, the angle is continuously increased and decreased, the motion state of the cut tobacco is observed until the cut tobacco flow moves stably upwards, and the forward component velocity matched with the cut tobacco suction pulley is achieved;

the frequency adjustment and mutual matching of each first ultrasonic vibration generator and each second ultrasonic vibration generator are as follows: the initial vibration frequency is 20000Hz, the frequency and the phase are gradually increased, so that the cut tobacco stably runs when the strip material runs, and the plates on the two sides of the first channel do not resonate with the cut tobacco;

the amplitude adjustment and mutual matching of each first ultrasonic vibration generator and each second ultrasonic vibration generator are as follows: the initial amplitude is 2 μm, and the frequency and phase are gradually increased or decreased to make the tobacco shred stably run when the strip material runs, and the plates on both sides of the first channel do not resonate with the tobacco shred.

The device for improving the yarn supply uniformity provided by the embodiment of the invention can effectively avoid frequent yarn blocking caused by non-uniform yarn supply of the conventional device, reduce the operation efficiency of equipment, lead the weight of cigarette products to be larger, cause cigarette blanks, save the cigarettes by bamboo and the like, has a simple structure, ensures the stability and the reliability, can meet the requirement of continuous work of a cigarette making machine, ensures the product quality and the stable operation of the equipment, reduces the labor intensity of maintenance workers and operators, and improves the work efficiency.

The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.