CN203798429U - Belt weigher controlling flow of small-batch tobacco leaves - Google Patents
Belt weigher controlling flow of small-batch tobacco leaves Download PDFInfo
- Publication number
- CN203798429U CN203798429U CN201320821270.XU CN201320821270U CN203798429U CN 203798429 U CN203798429 U CN 203798429U CN 201320821270 U CN201320821270 U CN 201320821270U CN 203798429 U CN203798429 U CN 203798429U
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- belt
- belt conveyer
- conveyer scale
- plc
- frequency converter
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Abstract
The utility model discloses a belt weigher controlling a flow of small-batch tobacco leaves, and the belt weigher comprises a belt conveying mechanism, a charging machine with a built-in timer, and a weight sensor. The belt conveying mechanism comprises a belt scale PLC, a frequency converter, a belt conveyor, an encoder, and an analog input module. The output end of the weight sensor is connected with the corresponding input end of the belt scale PLC. The corresponding output end of the belt scale PLC is connected with input end of the charging machine. The belt scale PLC is connected to the frequency converter through an industrial Ethernet, wherein the frequency converter supports the Ethernet. The output end of the frequency converter is connected with the power end of the belt conveyor. The output end of the belt conveyor is connected with the signal input end of the analog input module through the encoder. The signal output end of the analog input module is connected with the feedback signal port of the belt scale PLC. The belt weigher provided by the utility model is advantageous in that the belt weigher is simple in installation and debugging, can guarantee that the precision of batch processing reaches the standard, and can effectively reduce the charging precision of material heads and tails.
Description
Technical field
The utility model relates to a kind of belt conveyer scale of controlling short run tobacco leaf flow, belongs to measuring apparatus field.
Background technology
In cigarette primary processing process, reinforced is important technological process, and reinforced homogeneity directly has influence on the aesthetic quality of cigarette.Along with improving constantly of cigarette technology, the pattern of grouping Processing short run tobacco leaf has become a kind of trend, and this has just proposed requirements at the higher level to the control of short run tobacco leaf flavoring and casing precision.
In reinforced process, be exactly become, nonlinear process control when a kind of for the control of stub bar material tail.In reinforced process, the control of stub bar material tail has produced very large impact to accuracy value.In the time that mass flow produces fluctuation, feeding quantity is corresponding along with PID controls makes fluctuation control, but PID control has hysteresis quality and overshoot, certainly will affect the accuracy of feeding quantity in wave process, thereby in the time of real-time computational accuracy, must produce certain impact to accuracy value.Especially in the stub bar material tail period, it is huge that the variation of supplied materials changes instantaneous delivery, due to the reinforced hysteresis quality regulating of following the tracks of, certainly will affect reinforced instantaneous accuracy error.If there is fracture situation, more there will be similar repeatedly stub bar material tail situation, will cause larger impact to the control of precision.In single grade small lot materials charging technology process, the proportion of stub bar material tail has accounted for 1/4th left and right of whole batch of charging technology process, and when ad eundem tobacco leaf is produced continuously, also there will be the problem of two stub bar material tails, thereby be difficult to realize the accurate control of charging precision.By analyzing the traffic trends figure of supplied materials tobacco leaf of Central Control Room monitored picture, flow is divided into three parts are in stub bar, material, material tail, from trend map, can find out in the flow rate fluctuation of stub bar stage material larger.The fluctuation of supplied materials stub bar is large, and belt conveyer scale flow control is unstable, further analyzes belt conveyer scale data on flows, and the fluctuation situation of inquiry stub bar obtains reinforced mean accuracy of stub bar stage extremely unstable, often higher than the accuracy requirement 0.5% specifying.
Utility model content
Technical problem to be solved in the utility model has been to provide one can ensure that lots processed precision is up to standard, can effectively reduce again the belt conveyer scale of the control short run tobacco leaf flow of stub bar material tail charging precision fluctuation.
The utility model solves the technical scheme that its technical matters adopts:
The utility model comprises belt conveyor structure, is built-in with charger and the weight sensor of timer; Described belt conveyor structure comprises belt conveyer scale PLC, frequency converter, belt feeder, scrambler and analog input module; The respective input of the output terminal lace scale PLC of described weight sensor, the corresponding output end of described belt conveyer scale PLC connects the input end of charger, described belt conveyer scale PLC accesses the frequency converter of supporting ethernet communication by Industrial Ethernet, the power end of the output terminal lace machine of described frequency converter, the encoded device of output terminal of described belt feeder connects the signal input part of analog input module, the feedback signal port of the signal output part lace scale PLC of described analog input module.
Described scrambler is that speed detects scrambler, and it is by the travelling speed of belt on rotary pulsed detection belt feeder.
The model of described belt conveyer scale PLC is 314-6CG03-0AB0.
The model of described analog input module is Siemens 6ES7 134-4MB00-0AB0.
The model of described frequency converter is the S500 of Mitsubishi.
The model of the described scrambler EB50B8-H6PR-1000 of section that is advisable.
The beneficial effects of the utility model are: (1) belt conveyer scale PLC controls the charger with timer, utilize timer to change fixing target flow setting into dynamic target flow setting, by the gradual variation of target setting flow, make target flow and actual instantaneous delivery deviation very small, avoided target flow and actual instantaneous delivery to differ the jumbo fluctuation of the charging precision causing more greatly; (2) described scrambler is by rotary pulsed detection belt feeder travelling speed, and the rate signal detecting is accessed to belt conveyer scale PLC by analog input module, complete speed feedback, in the time that rate signal fluctuation is larger, belt conveyer scale PLC is according to speed Wave crest and wave trough calculated signals mean value, access Frequency Converter Control belt feeder rotating speed by Industrial Ethernet, realize steadily speed change accurately; (3) omnidistance left unguarded, robotization weighs, and has not only saved manpower and materials, and Installation and Debugging are simple, more make reinforced homogeneity control be very significantly improved, and reliability is high.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the utility model is further described:
As shown in Figure 1, the present embodiment comprises belt conveyor structure, is built-in with charger and the weight sensor of timer; Described belt conveyor structure comprises belt conveyer scale PLC, frequency converter, belt feeder, scrambler and analog input module; The respective input of the output terminal lace scale PLC of described weight sensor, the corresponding output end of described belt conveyer scale PLC connects the input end of charger, described belt conveyer scale PLC accesses the frequency converter of supporting ethernet communication by Industrial Ethernet, the power end of the output terminal lace machine of described frequency converter, the encoded device of output terminal of described belt feeder connects the signal input part of analog input module, the feedback signal port of the signal output part lace scale PLC of described analog input module.
Described scrambler is that speed detects scrambler, and it is by the travelling speed of belt on rotary pulsed detection belt feeder.
Described belt conveyer scale PLC adopts Siemens S7-300 PLC, and model is 314-6CG03-0AB0.
The model of described analog input module is Siemens 6ES7 134-4MB00-0AB0.
The model of described frequency converter is the S500 of Mitsubishi.
The model of the described scrambler EB50B8-H6PR-1000 of section that is advisable.
Principle of work of the present utility model:
First, belt conveyer scale PLC controls the charger with timer, utilize timer to change fixing target flow setting into dynamic target flow setting, by the gradual variation of target setting flow, make target flow and actual instantaneous delivery deviation very small, avoided target flow and actual instantaneous delivery to differ the jumbo fluctuation of the charging precision causing more greatly.
Secondly, described scrambler is by rotary pulsed detection belt feeder travelling speed, then analog input module is carried out the output valve of scrambler (being velocity amplitude) signal conversion and is fed belt conveyer scale PLC, complete speed feedback, in the time that rate signal fluctuation is larger, belt conveyer scale PLC is according to speed Wave crest and wave trough calculated signals mean value, access frequency converter by Industrial Ethernet, by motor speed speed on frequency transformation control belt feeder, and then control tobacco leaf uninterrupted, realize steadily speed change accurately.
Adopt the omnidistance left unguarded of this belt conveyer scale, robotization weighs, and has not only saved manpower and materials, and Installation and Debugging are simple, more make reinforced homogeneity control be very significantly improved, and reliability is high.
On effect, belt conveyer scale after improving has been carried out to Contrast on effect, along with improving constantly of cigarette technology, the pattern of grouping Processing short run tobacco leaf has become a kind of trend, therefore adopt the grouping Processing pattern that generally adopts now: be about to every batch of tobacco leaf of a brand and be divided into A group and the production respectively of B group by grade.
Before unexecuted grouping Processing, diamond green stone average a collection of tobacco leaf weight of two generations is 8500Kg, and average charging precision is 0.10%;
Carry out after grouping Processing, diamond green stone two generations A group tobacco leaf average weight is 6800Kg, and average charging precision is that 0.18%, B group tobacco leaf average weight is 1700Kg, and average charging precision is 0.43%;
And charging precision requirement in workshop is 0.5%, therefore the charging precision of B group tobacco leaf approaches and exceeds standard, and adjusts space minimum in production, and this kind of situation hidden danger is very big, once occur that some is abnormal in producing, charging precision will be faced with the risk exceeding standard.
Tracking and testing the charging precision of green stone two generations B group in July, 2012 to 50 batches of three months September, charging precision deviation mean value has reached 0.17%, 0.43% before had significantly and promoted, effect is remarkable,
In cigarette primary processing process, may in many streamlines, use the belt conveyer scale of the present embodiment, in the time that multiple belt conveyer scales use simultaneously, need to be connected with main cabinet PLC by industrial switch, main cabinet PLC is for automatically controlling whole leaves moisting charging process, the general Siemens S7-400 PLC that adopts, model is 414-3EM06-0AB0; Industrial switch is used for realizing exchanges data and signal amplifies, general employing model is 208 industrial switch of 6GK5 208-0BA10-2AA3, between main cabinet PLC and belt conveyer scale PLC, can realize in theory direct-connected, but along with the increase of distance and increasing of communication node, before signal, degree has decay, so need industrial switch.Between described belt feeder, scrambler, analog input module, all adopt 24V signal wire to be connected, between described analog input module and belt conveyer scale PLC, adopt core bus to be connected.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments of making within spirit of the present utility model and principle, be equal to and replace and improvement etc., within being all included in protection domain of the present utility model.
Claims (6)
1. a belt conveyer scale of controlling short run tobacco leaf flow, is characterized in that: comprise belt conveyor structure, be built-in with charger and the weight sensor of timer; Described belt conveyor structure comprises belt conveyer scale PLC, frequency converter, belt feeder, scrambler and analog input module; The respective input of the output terminal lace scale PLC of described weight sensor, the corresponding output end of described belt conveyer scale PLC connects the input end of charger, described belt conveyer scale PLC accesses the frequency converter of supporting ethernet communication by Industrial Ethernet, the power end of the output terminal lace machine of described frequency converter, the encoded device of output terminal of described belt feeder connects the signal input part of analog input module, the feedback signal port of the signal output part lace scale PLC of described analog input module.
2. the belt conveyer scale of control short run tobacco leaf flow according to claim 1, is characterized in that: described scrambler is that speed detects scrambler, and it is by the travelling speed of belt on rotary pulsed detection belt feeder.
3. the belt conveyer scale of control short run tobacco leaf flow according to claim 2, is characterized in that: the model of described belt conveyer scale PLC is 314-6CG03-0AB0.
4. the belt conveyer scale of control short run tobacco leaf flow according to claim 3, is characterized in that: the model of described analog input module is Siemens 6ES7 134-4MB00-0AB0.
5. the belt conveyer scale of control short run tobacco leaf flow according to claim 4, is characterized in that: the model of described frequency converter is the S500 of Mitsubishi.
6. the belt conveyer scale of control short run tobacco leaf flow according to claim 5, is characterized in that: the model of the described scrambler EB50B8-H6PR-1000 of section that is advisable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821270.XU CN203798429U (en) | 2013-12-13 | 2013-12-13 | Belt weigher controlling flow of small-batch tobacco leaves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821270.XU CN203798429U (en) | 2013-12-13 | 2013-12-13 | Belt weigher controlling flow of small-batch tobacco leaves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798429U true CN203798429U (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821270.XU Expired - Fee Related CN203798429U (en) | 2013-12-13 | 2013-12-13 | Belt weigher controlling flow of small-batch tobacco leaves |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115067532A (en) * | 2022-07-19 | 2022-09-20 | 河北白沙烟草有限责任公司 | Stable blending process cut tobacco flow system |
-
2013
- 2013-12-13 CN CN201320821270.XU patent/CN203798429U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115067532A (en) * | 2022-07-19 | 2022-09-20 | 河北白沙烟草有限责任公司 | Stable blending process cut tobacco flow system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |