CN214103197U - Tobacco feeding device and system - Google Patents
Tobacco feeding device and system Download PDFInfo
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- CN214103197U CN214103197U CN202022902430.6U CN202022902430U CN214103197U CN 214103197 U CN214103197 U CN 214103197U CN 202022902430 U CN202022902430 U CN 202022902430U CN 214103197 U CN214103197 U CN 214103197U
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Abstract
The utility model discloses a tobacco leaf feeding device and system relates to tobacco machinery for increase the homogeneity that the material was carried. The tobacco feeding device comprises a conveying belt, a poking roller, an adjusting mechanism and a driving mechanism. The conveyor belt is configured to convey material. The poking roller is positioned above the conveying belt and is arranged at intervals with the conveying surface of the conveying belt. The adjustment mechanism dial roller is mounted to the adjustment mechanism, and the adjustment mechanism is configured to adjust a distance between the dial roller and a conveying surface of the conveyor belt. The driving mechanism is in driving connection with the shifting roller so as to drive the shifting roller to rotate. According to the tobacco feeding device provided by the technical scheme, the distance between the poking roller and the conveying belt is adjustable, so that the flow area of the material is adjustable, the flow area of the material is adjusted as required, and uniform feeding is realized.
Description
Technical Field
The utility model relates to a tobacco machinery, concretely relates to tobacco leaf feeding device and system.
Background
The burley tobacco is used as a material basis of the special flavor and taste of the blended type cigarette and has obvious influence on the sensory quality of the blended type cigarette. The cigarette feeding has the functions of reducing irritation, softening and smoothing smoke, improving aftertaste, improving the physical properties of tobacco materials, improving the smoking quality of cigarettes and meeting the requirements of consumers.
In order to ensure the tobacco leaf feeding effect and the product quality balance, the instantaneous flow of the tobacco leaves in the feeding procedure is required to be stable, so that the feeding amount is applied according to a fixed proportion, and the instantaneous flow of the feeding liquid is uniform and stable. In the related technology, a quantitative feeding system is adopted to realize the stable instantaneous flow of tobacco leaves in the feeding process. The quantitative feeding system comprises a cabinet type feeding machine, a vibration groove, a conveying belt and a limiting pipe. The material is conveyed to the vibration groove by the cabinet type feeding machine and then conveyed to the conveying belt to enter the limiting pipe, the running speeds of the feeding machine and the conveying belt are controlled by the low, medium and high photoelectric tubes of the limiting pipe, so that the material enters the electronic belt scale relatively uniformly, and the material flow enters the feeding machine uniformly and stably.
The inventor finds that at least the following problems exist in the prior art: firstly, the cabinet type feeding machine adopts the patrol paving mode, namely materials are accumulated to a certain height in the cabinet and then are accumulated backwards, the first-in first-out discharging mode is adopted, the uniformity of the materials stacked in the cabinet type feeding machine is poor in the paving mode, and further the uniformity of material discharging in the cabinet type feeding machine is poor, the instantaneous flow fluctuation is large, and further the material blockage at the conveying belt and the limiting pipe is easy to cause. Secondly, when producing blended cigarettes, because the physical property difference between different tobacco block raw materials is large, particularly between burley tobacco leaves and common tobacco leaves, the volume weight ratio (namely the weight of materials in unit volume) between the burley tobacco leaves and the common tobacco leaves reaches 2.1: 1, because cabinet type feeding machine is FIFO, when the material links up between two kinds of tobacco leaves, the same material flow can appear, and instantaneous volume flow difference is great, and it is undulant very easily to appear the material flow on the electronic belt weigher this moment, appears unable satisfying the material flow condition even.
SUMMERY OF THE UTILITY MODEL
The utility model provides a tobacco leaf feeding device and system for increase the homogeneity that the material was carried.
The utility model provides a tobacco leaf feeding device, a serial communication port, include:
a conveyor belt configured to convey a material;
the poking roller is positioned above the conveying belt and is arranged at intervals with the conveying surface of the conveying belt;
an adjustment mechanism to which the dial roller is mounted, the adjustment mechanism configured to adjust a distance between the dial roller and a conveying surface of the conveyor belt; and
and the driving mechanism is in driving connection with the shifting roller so as to drive the shifting roller to rotate.
In some embodiments, the adjustment mechanism comprises:
the poking roller is rotatably arranged on the mounting seat;
the driving wheel is rotatably connected with the mounting seat; and
a rack fixedly arranged, the drive wheel being engaged with the rack; wherein, the drive wheel rotates in order to drive the mount pad removes for the rack.
In some embodiments, the adjustment mechanism further comprises:
a guide mechanism, the mount being disposed to the guide mechanism, the guide mechanism being configured to provide guidance for linear movement of the mount.
In some embodiments, the guide mechanism comprises:
the mounting base is provided with a first mounting hole, and the linear bearing is positioned in the first mounting hole; and
and the guide rod is fixedly arranged and penetrates through the second mounting hole of the linear bearing.
In some embodiments, the drive mechanism comprises:
the first chain wheel is in driving connection with the poking roller so as to drive the poking roller to rotate;
the second chain wheel is in driving connection with the driving source; and
a chain wound around the first and second sprockets to transmit rotation of the driving source to the first sprocket via the second sprocket.
In some embodiments, the drive mechanism further comprises:
a tensioning wheel configured to tension the chain.
In some embodiments, the pick roller is located in a middle region of the length of the conveyor belt.
In some embodiments, the conveyor belt is configured to be adjustable in speed of travel.
The embodiment of the utility model provides a still provide a tobacco leaf feed system, include:
the tobacco feeding device provided by any technical proposal of the utility model; and
a level detection element located downstream of the tobacco feeding device, the level detection element configured to detect an amount of material output by the tobacco feeding device.
In some embodiments, the tobacco feeding system further comprises:
a feeder configured to output a material; and
the vibration groove is positioned at the downstream of the feeding machine and at the upstream of the conveying belt, and the vibration groove is configured to uniformly vibrate the material and then convey the material to the conveying belt.
In some embodiments, the feed rate of the feeder is configured to be adjustable.
According to the tobacco feeding device provided by the technical scheme, the distance between the poking roller and the conveying belt is adjustable, so that the flow area of the material is adjustable. The material flow entering the downstream electronic belt scale always meets the production requirement by adjusting the position of the poking roller. And when the conveyed materials change, even if the materials have different volume weights, the material flow can be uniform and stable by adjusting the positions of the shifting rollers, so that the feeding precision is improved, the product quality is improved, the stable and continuous operation of equipment is ensured, the starting and stopping frequency is reduced, and the labor intensity of operators is reduced to the maximum extent.
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 undue limitation to the invention. In the drawings:
FIG. 1 is a schematic view of a using state of a tobacco feeding device provided by an embodiment of the present invention;
fig. 2 is a schematic partial enlarged view of a tobacco feeding device provided in an embodiment of the present invention;
FIG. 3 is a schematic view of a part of the roller-pushing part of the tobacco feeding device provided by the embodiment of the present invention;
fig. 4 is a schematic flow chart of a tobacco leaf feeding method provided by the embodiment of the utility model.
Detailed Description
The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 4.
Referring to fig. 1 to 3, the embodiment of the present invention provides a tobacco feeding device, which can realize even feeding when the material type changes. The tobacco feeding device comprises a conveying belt 1, a poking roller 2, an adjusting mechanism 3 and a driving mechanism 4. The conveyor belt 1 is configured to convey material. The poking roller 2 is positioned above the conveying belt 1 and is arranged at intervals with the conveying surface of the conveying belt 1. The dial rollers 2 are mounted to an adjustment mechanism 3, the adjustment mechanism 3 being configured to adjust the distance between the dial rollers 2 and the conveying surface of the belt 1. The adjusting mechanism 3 changes the distance between the dial roller 2 and the conveyor belt 1 by changing the position of the dial roller 2. The driving mechanism 4 is in driving connection with the poking roller 2 so as to drive the poking roller 2 to rotate.
The poking roller 2, the adjusting mechanism 3 and the driving mechanism 4 can be supported by the frame 10 of the conveyor belt 1, in particular can provide support for a support column. The bending deformation of the side plates of the frame 10 caused by the weight of the above parts can be reduced by supporting the upright posts.
The dial roller 2, the adjustment mechanism 3 and most of the components of the drive mechanism 4 may be located within a housing 30, the housing 30 also being supported by support posts. The shell 30 can protect the components therein, prevent dust and reduce the damage to personnel and articles caused by the movement of the components. Angle steel may be selected as a frame for the housing 30 to reduce the overall weight of the device. A plurality of connecting members, specifically, for example, 12 cylinders, are provided between the housing 30 and the frame 10. The cylindrical support can reduce the hole aligning difficulty during installation; simultaneously, the whole device is lifted, so that the cleaning is convenient, and the hidden danger of tobacco worms caused by residual materials is prevented. And, the use of a plurality of connectors increases the contact area of the housing 30 with the frame 10, and reduces the pressure of the contact surface. Meanwhile, the shell 30 is raised, so that residual materials at the bottom of the shell 30 can be cleaned conveniently.
Referring to fig. 3, the dial roller 2 includes a rotation body 21 and a dial pin 22 provided to the rotation body 21. The poking roller 2 with small shaft diameter and long poking nail can be selected. The revolving body with small shaft diameter can reduce the weight of the poking roller 2; the long nail can improve the linear speed of the tail end of the poking roller 2, and the material poking speed is high.
The poking roller 2 has two movements, one of which is continuous rotation, and the materials are evenly paved on the conveying surface of the conveying belt 1 through rotation. The rotation of the poking roller 2 is driven by a driving mechanism 4. The driving mechanism 4 can adopt various realization modes such as motor driving, chain wheel driving, gear driving and the like. The second is the movement of the shifting roller 2 relative to the conveying surface of the conveyor belt 1, which is not necessarily performed in real time, but only when the height of the material flow stack on the conveyor belt 1, i.e. the material level, changes. The adjusting mechanism 3 can realize the up-and-down movement of the poking roller 2 in various ways.
Two adjusting mechanisms 3 may be provided, and one adjusting mechanism 3 is provided at each of two axial end portions of the dial roller 2. The two adjusting mechanisms 3 can be realized in the same way. Two adjusting mechanisms 3 are arranged to ensure that bearing seats on two sides of the poking roller 2 can be lifted synchronously.
Referring to fig. 2 and 3, in some embodiments, adjustment mechanism 3 includes a mount 31, a drive wheel 32, a lift motor, and a rack 33. The poking roller 2 is rotatably mounted on the mounting seat 31, and can rotate through a bearing. The driving wheel 32 is rotatably connected with the mounting seat 31. The gear rack 33 is fixedly arranged and the driving wheel 32 is engaged with the gear rack 33. Wherein, the lifting motor drives the driving wheel 32 described above to rotate so as to drive the mounting seat 31 to move relative to the rack 33.
The driving wheel 32 is driven by the lifting motor to rotate, and then the driving wheel 32 moves up and down along the rack 33, and the up and down movement of the driving wheel 32 causes the mounting seat 31 to move up and down, so that the up and down movement of the poking roller 2 is realized. The elevator motor is fixed on the frame 10. The up and down movement of the dial roller 2 changes the pitch of the dial roller 2 with respect to the conveying surface of the conveyor belt 1. In some embodiments, the lifting motor can be replaced by a driving component such as a proportional control cylinder.
Install rotary encoder on elevator motor, confirm through rotary encoder that 2 height of dial roller and lift distance to realize the control of 2 lifting height of dial roller.
The elevator motor may drive the rotation of the driving wheel 32 described above through the intermediate wheel 35. Specifically, the intermediate wheel 35 and the drive wheel 32 are coaxially disposed, and both are keyed. The lifting motor is directly connected with the intermediate wheel 35 in a driving way, and the driving wheel 32 is driven to move up and down along the rack 33 by the rotation of the intermediate wheel 35.
Referring to fig. 2 and 3, in some embodiments, the adjusting mechanism 3 further includes a guide mechanism 34, and a guide direction of the guide mechanism 34 is parallel to a length direction of the rack 33. The mount 31 is provided to a guide mechanism 34, and the guide mechanism 34 is configured to provide a guide for the linear movement of the mount 31. The guide mechanism 34 is, for example, a slide rail, a linear bearing 341, or the like. The guide mechanism 34 can make the up-and-down displacement of the mounting seat 31 more stable, reliable and stable.
Referring to fig. 2 and 3, in some embodiments, the guide mechanism 34 includes a linear bearing 341 and a guide rod 342. The mount 31 is provided with a first mounting hole 310, and the linear bearing 341 is located in the first mounting hole 310. The linear bearing 341 is fitted to the first mounting hole 310. The guide rod 342 is fixedly disposed, and the guide rod 342 passes through the second mounting hole 343 of the linear bearing 341. The guide rod 342 and the linear bearing 341 form a fit. The linear bearing 341 moves up and down with the mounting seat 31, and the guide rod 342 is fixed to the frame 10 and does not move therewith. The guide rod 342 may be a straight rod.
Referring to fig. 2 and 3, an implementation of the drive mechanism 4 is described below.
In some embodiments, the drive mechanism 4 includes a first sprocket, a second sprocket, and a chain. The first chain wheel is in driving connection with the poking roller 2 so as to drive the poking roller 2 to rotate. The second chain wheel is in driving connection with the driving source. The chain is wound around the first sprocket and the second sprocket to transmit the rotation of the driving source to the first sprocket via the second sprocket.
The second chain wheel is driven by external force to rotate, and the second chain wheel drives the first chain wheel to rotate through the chain. First sprocket and dial 2 fixed connection of roller, first sprocket rotates and can drive and dial 2 synchronous rotations of roller.
In some embodiments, the drive mechanism 4 further comprises a tensioning wheel configured to tension the chain. The chain makes the chain keep certain tensile force all the time through the tensioning sprocket, dials 2 lift in-process at the roller, and the take-up pulley changes the position thereupon. The poking roller 2 is arranged at different positions, and the tensioning wheel is always kept in a tensioning state under the action of the tension spring, so that the chain is kept at the tensioning position. Above-mentioned technical scheme for the chain is in the tensioning condition all the time, so that turning moment can be firmly transmitted to first sprocket from the second sprocket.
Considering that the dial roller 2 has a certain length, in order to make the rotation of the dial roller 2 relatively stable, the driving mechanisms 4 may be provided at both ends of the dial roller 2. The two driving mechanisms 4 simultaneously drive the poking roller 2 to rotate. The two drive mechanisms 4 can be implemented identically.
Referring to fig. 1, in some embodiments, the pick roller 2 is located in a middle region of the length direction of the conveyor belt 1. This position is spacious, is convenient for set up and dials roller 2, and dials the quantity of roller 2 and can set up one or more under the condition that satisfies the requirement.
In some embodiments, the running speed of the conveyor belt 1 is configured to be adjustable. The running speed of the conveyor belt 1 can be varied by adjusting the rotational speed of the motor driving the conveyor belt 1 in motion.
The height of the poking roller 2 can be adjusted in real time, and the automatic control of the height of the flow channel can be realized through a control program.
Referring to fig. 1, the embodiment of the present invention further provides a tobacco feeding system, including the present invention provides a tobacco feeding device and a material level detecting element 5. A level detecting element 5 is located downstream of the tobacco feeding device, the level detecting element 5 being configured to detect how much material the tobacco feeding device outputs.
The level detecting element 5 employs, for example, a correlation photoelectric cell, a grating sensor, or the like. The material flow area, namely the height of the poking roller 2 relative to the conveying belt 1 is adjusted according to the detection result of the material level detection element 5.
The limiting tube has three detection positions: a first detection position, a second detection position, and a third detection position. The three positions are detected according to a correlation photoelectric cell. The first detection position, the second detection position and the third detection position respectively correspond to three different material level heights. The third detection position corresponds to the lowest material level, the second detection position corresponds to the middle material level, and the first detection position corresponds to the highest material level. If the material does not block the third detection position, the material detected by the limiting tube is very little, and the lowest material level is not reached. If the material blocks only the third detection position, the limiting tube detects more material than the lowest level. If the material blocks the second detection position and does not block the first detection position, the material detected by the limiting tube is between the intermediate level and the highest level. If the material blocks the first detection position, the limit tube detects that the material is above the maximum level.
Referring to fig. 1, in some embodiments, the tobacco feeding system further comprises a feeder 6 and a vibratory trough 7. The feeder 6 is configured to output material; the vibration trough 7 is positioned at the downstream of the feeding machine 6 and at the upstream of the conveying belt 1, and the vibration trough 7 is configured to uniformly vibrate the materials and then convey the materials to the conveying belt 1. The feeder 6 and the vibration trough 7 can adopt the existing structure.
The feeding speed of the feeder 6 is configured to be adjustable. In the whole system, the motor frequency of the bottom belt of the feeding machine 6, the motor frequency of the conveying belt 1 and the distance between the poking roller 2 and the conveying belt 1 can be controlled through the height of the material detected by the limiting tube, so that the material uniformly and stably enters the limiting tube all the time in the material conveying process. When the volume weight of the material changes, the frequency of a bottom belt motor of the cabinet type feeder 6, the frequency of a conveyer belt 1 motor and the distance between a poking roller 2 and the conveyer belt 1 of the device can be automatically adjusted according to the height of the material in a limiting pipe and the accumulated time of material poking in unit time.
As introduced above, due to the processing requirements of blended cigarettes, the physical property difference between different tobacco block raw materials is large, particularly between burley tobacco and common tobacco, the volume weight of the burley tobacco and the common tobacco, namely the weight ratio of materials in unit volume, is 2.1: 1. meanwhile, due to the fact that the discharging uniformity of the cabinet type feeding machine 6 is poor, the actual moisture of the materials fluctuates, the volume flow difference exceeds 50% under the condition of different materials and the same flow requirement, the flow cannot meet the production requirement easily due to the huge fluctuation of the volume flow, and material blockage is caused easily, so that normal production is influenced.
By adopting the tobacco leaf feeding system provided by the technical scheme, the phenomenon of uneven discharging in the above situation can be effectively improved, and the system is also suitable for other materials with large specific gravity difference. The system can realize the translation of the material homogenizing poking roller 2 in the direction vertical to the material conveying direction, and the distance between the bottom of the poking roller 2 and the belt surface of the conveying belt 1 is adjusted according to the material condition at the position of the limiting pipe and the material condition in front of the poking roller 2; and one or more of the feeding speed of the feeder 6 and the conveying speed of the conveyor belt 1 can be adjusted as required. And, realized the even stability of cabinet type feeding machine 6 feed, can be according to the volume flow that the on-the-spot condition adjustment passed through in the unit interval to the material that keeps entering limit pipe department is even stable, prevents the emergence of putty phenomenon, guarantees product quality, improves sense organ quality. When the volume weight of the material changes suddenly or the difference is large, the material entering the limiting tube can still meet the requirement of production flow, and the entering material is uniform and stable, so that the quantitative feeding of the material behind the cabinet type feeding machine 6 is realized, the working stability of subsequent processing equipment is ensured, and the sensory quality is improved.
Referring to fig. 4, still other embodiments of the present invention provide a method for controlling a tobacco feeding device, including the steps of:
and step S100, detecting the material level on the conveying belt 1.
And S200, adjusting the distance between the poking roller 2 and the conveying surface of the conveying belt 1 according to the material level, wherein the distance is positively correlated with the material level.
In some embodiments, the running speed of the conveyor belt 1 is controlled in the following manner: if the material level is less than the first set value, increasing the running speed of the conveyer belt 1 and/or the feeding speed of the feeder 6; if the material level is larger than the first set value, the running speed of the conveyer belt 1 is reduced and/or the feeding speed of the feeder 6 is reduced; if the material level is greater than the second set value and less than the first set value, the running speed of the conveyer belt 1 and/or the feeding speed of the feeder 6 are/is kept; if the material level is greater than the third set value and less than the second set value, increasing the running speed of the conveyer belt 1 and/or increasing the feeding speed of the feeder 6; if the level is less than the third set point, the running speed of the conveyor belt 1 is increased and/or the feeding speed of the feeder 6 is increased. The first set value is larger than the second set value, and the second set value is larger than the third set value.
In some embodiments, the spacing between the pick roller 2 and the conveying surface of the conveyor belt 1 is controlled in the following manner: if the material level is larger than the first set value, increasing the distance; if the material level is greater than the second set value and less than the first set value, keeping the distance; if the material level is greater than the third set value and less than the second set value, decreasing the spacing; if the fill level is less than the third set value, the spacing is decreased.
Specific examples are described below. The controlled objects are three: the feeding speed of the feeding machine 6, the conveying speed of the conveying belt 1 and the height of the poking roller 2. The following description is developed one by one.
The feeding speed of the feeder 6 is determined by a bottom belt motor M1 of the feeder 6, and the running speed of the bottom belt motor M1 of the feeder 6 is related to the material level detected by a limiting pipe. The control method of the feeding speed of the feeder 6 comprises the following specific steps:
firstly, a correlation type photoelectric tube is arranged in a certain distance in front of an inlet of the material refining poking roller 2, and the height of the position of the material in the limiting tube, namely the material level, is detected through the correlation type photoelectric tube.
Secondly, a control method for automatically adjusting the motor M1 at the bottom of the cabinet type feeding machine 6 is constructed. The individual parameters are defined as follows: the running frequency of the bottom belt motor is F (M1), and the running frequency interval of the bottom belt motor is F (M1)l ~F(M1)hThe frequency automatic adjustment values are three: delta F (M1)l、ΔF(M1)m、ΔF(M1)hWherein, Δ F (M1)mBetween Δ F (M1)lAnd Δ F (M1)hIn the meantime.
The limiting tube has three detection positions: when the first detection position PT1, the second detection position PT2 and the third detection position PT3 are not shielded, it is described that the material amount is relatively small, and at this time, the control strategy is as follows: increasing the operating frequency F (M1) of the bottom belt motor by delta F (M1)hTo increase the material delivery.
When the first detecting position PT1 and the second detecting position PT2 of the limiting tube are not shielded and the third detecting position PT3 is shielded, the amount of the material is less, and the control strategy is as follows: increasing the running frequency F (M1) of the bottom belt motor by delta F (M1)mTo increase the feeding amount of the feeder 6.
When the limiting tube has the first detecting position PT1 without being blocked and the second detecting position PT2 and the third detecting position PT3 are blocked, the control strategy is as follows: so that the bottom tape motor operation frequency F (M1) is kept constant, i.e., the feeding speed of the feeder 6 is kept.
When the first detecting position PT1, the second detecting position PT2 and the third detecting position PT3 of the limiting tube are blocked, the material amount is excessive, and the control strategy is as follows: reducing the operating frequency F (M1) of the bottom band motor by Δ F (M1)lTo reduce the feeding speed of the feeder 6And (4) degree.
It should be noted that the operating frequency of the bottom belt motor M1 should always be within the interval described above. When the running frequency of the bottom belt motor is automatically adjusted to be equal to or less than F (M1)lWhen the running frequency is too low, the running frequency F (M1) of the bottom tape motor is equal to F (M1)l. When the running frequency of the bottom belt motor is automatically adjusted to be more than or equal to F (M1)hWhen the running frequency is too fast, the running frequency F (M1) of the bottom tape motor should be equal to F (M1)h。
How to adjust the conveying amount of the conveyor belt 1 will be described below. The speed of the conveyed materials can be controlled by controlling the running speed of the motor M3 of the conveyor belt 1. The individual parameters are defined as follows: the running frequency of the conveyer belt motor is F (M3), and the running frequency interval of the conveyer belt motor is F (M3)l~F(M3)hAutomatic frequency regulation value delta F (M3)l、ΔF(M3)m、ΔF(M3)h。ΔF(M3)mBetween Δ F (M3)lAnd Δ F (M3)hIn the meantime.
The control method of the conveyor belt motor M3 is likewise dependent on the fill level detected by the metering tube.
When the first detecting position PT1, the second detecting position PT2 and the third detecting position PT3 of the limiting tube are not shielded, the running frequency F (M3) of the conveyer belt motor is increased by delta F (M3)hI.e. increasing the running speed of the conveyor belt 1 and thus the material conveying capacity.
When the first detecting position PT1 and the second detecting position PT2 of the limiting tube are not shielded and the third detecting position PT3 is shielded, the running frequency F (M3) of the conveyer belt motor is increased by delta F (M3)mI.e. increasing the running speed of the conveyor belt 1 and thus the material conveying capacity.
When the limiting tube is not blocked at the first detecting position PT1 and the second detecting position PT2 and the low level PT1 are blocked, the operation frequency F (M3) of the conveyor motor is kept unchanged, that is, the operation speed of the conveyor 1 is kept.
When the first detecting position PT1, the second detecting position PT2 and the third detecting position PT3 of the limiting tube are all blocked, the running frequency F (M3) of the conveyor belt motor is reduced by delta F (M3)lI.e. to reduce the transport of the conveyor belt 1Line speed, thereby reducing material throughput.
It should be noted that the frequency of operation of the conveyor motor should be within the ranges described above. When the running frequency of the conveyer belt motor is automatically adjusted to be equal to or less than F (M3)lWhen the running frequency of the motor of the conveyor belt 1 is too low, the running frequency F (M3) of the motor of the conveyor belt is equal to F (M3)l. When the running frequency of the conveyer belt motor is automatically adjusted to be more than or equal to F (M3)hWhen the running frequency of the motor of the conveyor belt is too high, the running frequency F (M3) of the motor of the conveyor belt (1) is equal to F (M3)h。
Next, a method of adjusting the height of the dial roller 2 will be described. The individual parameters are defined as follows: the real-time height of the poking roller 2 is HnMinimum height of HlThe maximum height is HhThe height adjustment value is Δ H.
When the correlation type photoelectric tube detects that the material stirring time exceeds T1 in T time, the height H of the stirring roller 2nΔ H is increased.
When the correlation photoelectric cell detects that the material stirring time is T2-T1 in T time, the height H of the stirring roller 2nAnd is not changed.
When the correlation photoelectric tube detects that the material-shifting time is lower than T2 in T time, the height H of the shifting roller 2nΔ H is decreased.
It should be noted that the position of the dial roller 2 is always within the interval described above. When the height H of the poking roller 2nAfter automatic adjustment, is equal to or less than HlIt is said that the position of the pick roller 2 is too low, in which case the height H of the pick roller 2 should be such thatnIs equal to Hl. When the height H of the poking roller 2nIs more than or equal to H after automatic adjustmenthWhen the position of the poking roller 2 is too high, the height H of the poking roller 2 should be ensurednIs equal to Hh。
The overall control method comprises the following steps: firstly, defining PLC program control timer delta t1、△t2、△t3、△t4T and TA. When the material level is detected, the control logic of the material level detected by the limiting tube is divided into the following conditions:
(1) when the level detected by the restriction tube is below the third detection position PT 3. This indicates that the material is not able to meet the flow requirements, and the frequency of operation of the bottom belt motor F (M1) is increased by Δ F (M1)hAnd meanwhile, the running frequency F (M3) of the conveyor belt motor is increased by delta F (M3)h. If the timer Δ t passes1Then, when the material level of the limiting tube is still below the third detection position PT3, the operation frequency F (M1) of the bottom belt motor and the operation frequency F (M3) of the conveyer belt motor are respectively increased by delta F (M1)hAnd Δ F (M3)h. And the process is circulated. If timer Δ t1The timing is started but not finished, the material level rises to a third detection position PT3, and the timer delta t is reset1。
(2) When the material level detected by the limiting tube is between the third detection position PT3 and the second detection position PT2, the material just meets the flow requirement. But there are cases that may be about to fail, the timer Δ t is passed2Thereafter, the bottom band motor operating frequency F (M1) is increased by Δ F (M1)mAnd meanwhile, the running frequency F (M3) of the conveyor belt motor is increased by delta F (M3)m. If it is further passed by a timer Δ t2Then, the material level detected by the limiting tube is still between the third detection position PT3 and the second detection position PT2, the operation frequency F (M1) of the bottom belt motor and the operation frequency F (M3) of the conveyer belt motor are respectively increased by delta F (M1)mAnd Δ F (M3)mAnd the process is circulated. If timer Δ t2The time is started but not ended, the material level is not in the range, and the timer delta t is reset2。
(3) When the level detected by the restriction tube is between the second detection position PT2 and the first detection position PT 1. This indicates that the material just can meet the flow requirement, and then the timer Δ t is passed3Then, if the material level is still between the second detection position PT2 and the first detection position PT1, the operation frequency F (M1) of the bottom belt motor and the operation frequency F (M3) of the conveying belt motor are kept in the original frequency operation state and are not adjusted. If timer Δ t3The time is reset when the time is started but not ended and the material level is not in the range3。
(4) When the limiting tube detectsThe fill level is above the first test position PT 1. This indicates that the material exceeds the flow requirement, a timer Δ t is passed4Thereafter, if the level of the limiter tube is above the first detection position PT1, the device upstream of the limiter tube is immediately stopped, otherwise a blocking phenomenon occurs, and at the same time the operating frequency F (M1) of the lower belt motor is reduced by Δ F (M1)lAnd reducing the running frequency F (M3) of the conveyor belt motor by delta F (M3)l. And the process is circulated. If timer Δ t4The timer delta t is reset when the timing is started but not finished and the material level is lower than the first detection position PT14。
Aiming at any one of the situations, when the running frequency of the bottom belt motor is automatically adjusted to be equal to or less than F (M1)lWhile, the running frequency F (M1) of the bottom belt motor is equal to F (M1)l. When the running frequency of the bottom belt motor is automatically adjusted to be more than or equal to F (M1)hWhile, the running frequency F (M1) of the bottom belt motor is equal to F (M1)h. Similarly, the same is true of the conveyor motor operating frequency F (M3).
The correlation photoelectric tube detects the accumulated material shifting time T in the T timeAAbove T1, the height H of the devicenIncrease Δ H; when the correlation photoelectric tube is in T time, the material stirring accumulated time T is detectedAHeight H of the device at T2-T1nAnd is not changed. When the correlation photoelectric tube is in T time, the material stirring accumulated time T is detectedABelow T2, the height H of the devicenDecrease Δ H; when the height H of the devicenAfter automatic adjustment, is equal to or less than HlHeight H of the devicenIs equal to Hl. When the height H of the devicenIs more than or equal to H after automatic adjustmenthWhen the height H of the devicenIs equal to Hh。
And a PLC control program is compiled according to the control logic to realize the automatic regulation system for the cabinet discharging of the cabinet type feeder 6.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (11)
1. A tobacco feeding device, characterized by comprising:
a conveyor belt (1) configured to convey a material;
the poking roller (2) is positioned above the conveying belt (1) and is arranged at intervals with the conveying surface of the conveying belt (1);
an adjusting mechanism (3), the dial roller (2) being mounted to the adjusting mechanism (3), the adjusting mechanism (3) being configured to adjust a distance between the dial roller (2) and a conveying surface of the conveyor belt (1); and
and the driving mechanism (4) is in driving connection with the poking roller (2) so as to drive the poking roller (2) to rotate.
2. The tobacco feeding device according to claim 1, characterized in that the adjusting mechanism (3) comprises:
the mounting seat (31), the poking roller (2) is rotatably mounted on the mounting seat (31);
a driving wheel (32) rotatably connected with the mounting seat (31); and
a toothed rack (33) fixedly arranged, the drive wheel (32) being in engagement with the toothed rack (33); wherein the driving wheel (32) rotates to drive the mounting seat (31) to move relative to the rack (33).
3. The tobacco feeding device according to claim 2, characterized in that the adjusting mechanism (3) further comprises:
a guide mechanism (34), the mounting seat (31) being provided to the guide mechanism (34), the guide mechanism (34) being configured to provide guidance for linear movement of the mounting seat (31).
4. A tobacco feeding device according to claim 3, characterized in that the guiding means (34) comprise:
the linear bearing (341), the mounting seat (31) is provided with a first mounting hole (310), and the linear bearing (341) is positioned in the first mounting hole (310); and
and the guide rod (342) is fixedly arranged, and the guide rod (342) penetrates through the second mounting hole (343) of the linear bearing (341).
5. The tobacco feeding device according to claim 1, characterized in that said driving mechanism (4) comprises:
the first chain wheel is in driving connection with the poking roller (2) so as to drive the poking roller (2) to rotate;
the second chain wheel is in driving connection with the driving source; and
a chain wound around the first and second sprockets to transmit rotation of the driving source to the first sprocket via the second sprocket.
6. Tobacco feeding device according to claim 5, characterized in that said driving mechanism (4) further comprises:
a tensioning wheel configured to tension the chain.
7. The tobacco feeding device according to claim 1, characterized in that the poking roller (2) is located in the middle area of the length direction of the conveyor belt (1).
8. Tobacco feeding device according to claim 1, characterized in that the running speed of the conveyor belt (1) is configured to be adjustable.
9. A tobacco feeding system, comprising:
a tobacco feeding device according to any one of claims 1 to 8; and
a level detection element (5) located downstream of the tobacco feeding device, the level detection element (5) being configured to detect an amount of material output by the tobacco feeding device.
10. The tobacco feeding system of claim 9, further comprising:
a feeder (6) configured to output material; and
the vibration trough (7) is positioned at the downstream of the feeding machine (6) and at the upstream of the conveying belt (1), and the vibration trough (7) is configured to uniformly vibrate the materials and then convey the materials to the conveying belt (1).
11. The tobacco feeding system according to claim 10, characterized in that the feeding speed of the feeder (6) is configured to be adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902430.6U CN214103197U (en) | 2020-12-04 | 2020-12-04 | Tobacco feeding device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902430.6U CN214103197U (en) | 2020-12-04 | 2020-12-04 | Tobacco feeding device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214103197U true CN214103197U (en) | 2021-09-03 |
Family
ID=77509215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022902430.6U Active CN214103197U (en) | 2020-12-04 | 2020-12-04 | Tobacco feeding device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214103197U (en) |
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2020
- 2020-12-04 CN CN202022902430.6U patent/CN214103197U/en active Active
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