Automatic undersize weighing device and weighing method
阅读说明：本技术 一种筛下物自动称量装置及称量方法 (Automatic undersize weighing device and weighing method ) 是由 刘穗君 张新锋 李超 张明 刘颖 魏新峰 于 2019-11-21 设计创作，主要内容包括：本发明涉及一种筛下物自动称量装置及称量方法,包括电动蝶阀、软管、秤体支架、落料斗、料仓本体、称重传感器、螺旋组件及电控系统；电动蝶阀安装于集中除尘负压风管上,软管分别连接集中除尘负压风管及落料斗；料仓本体通过称重传感器支撑于秤体支架上；螺旋组件的部分设置于料仓本体内且与料仓本体转动配合；电控制系统与螺旋组件的动力系统电信号连接；电动蝶阀、称重传感器及电控制系统均与控制系统电信号连接。本技术方案实现筛下烟沫自动称量,并自动统计批次重量；通过控制螺旋转速,可实现精确控制烟沫出料量,进而实现负压输送按最大效率运行；通过电动蝶阀控制除尘负压风管,大幅节约除尘风量,减低风机能耗。(The invention relates to an automatic undersize weighing device and a weighing method, comprising an electric butterfly valve, a hose, a scale body bracket, a blanking hopper, a stock bin body, a weighing sensor, a spiral component and an electric control system; the electric butterfly valve is arranged on the centralized dust removal negative pressure air pipe, and the hose is respectively connected with the centralized dust removal negative pressure air pipe and the blanking hopper; the stock bin body is supported on the scale body bracket through the weighing sensor; part of the spiral component is arranged in the stock bin body and is in rotating fit with the stock bin body; the electric control system is in electric signal connection with a power system of the spiral component; the electric butterfly valve, the weighing sensor and the electric control system are all connected with the electric signal of the control system. The technical scheme realizes the automatic weighing of the undersize smoke foam and automatically counts the batch weight; by controlling the spiral rotating speed, the discharge amount of the tobacco foam can be accurately controlled, and the negative pressure conveying can be operated at the maximum efficiency; the electric butterfly valve controls the dedusting negative pressure air pipe, so that the dedusting air quantity is greatly saved, and the energy consumption of the fan is reduced.)
1. An automatic undersize weighing device is characterized by comprising an electric butterfly valve, a hose, a scale body bracket, a blanking hopper, a bin body, a weighing sensor, a spiral component and an electric control system;
the electric butterfly valve is arranged on the centralized dust removal negative pressure air pipe, the lower end of the centralized dust removal negative pressure air pipe is connected with the hose, and the other end of the hose is connected with the blanking hopper;
the storage bin body is supported on the scale body bracket through a weighing sensor, and the blanking hopper corresponds to a discharge hole of the storage bin body;
part of the spiral component is arranged in the stock bin body and is in running fit with the stock bin body;
the electric control system is in electric signal connection with a power system of the spiral component;
the electric butterfly valve, the weighing sensor and the electric control system are all connected with a control system through electric signals.
2. The undersize automatic weighing apparatus of claim 1, comprising a bin cover plate hingedly connected to the bin body.
3. The undersize automatic weighing apparatus of claim 1, wherein the number of the load cells is three.
4. The undersize automatic weighing apparatus of claim 1, wherein the bin body comprises a housing, a stock area, a feed flare, and a screw assembly mounting area; the material storage area, the feeding flaring opening and the spiral component mounting area are communicated and arranged in the shell;
a rotating shaft hole is formed in the shell at one end of the spiral component mounting area, and a bearing seat mounting hole is formed in the other end of the shell;
the material storage area is of an inverted cone structure.
5. The automatic undersize product weighing apparatus according to claim 4, wherein the screw assembly comprises a speed reduction motor, a bin flange, a screw pusher and a bearing seat;
the speed reducing motor is fixed on the scale body bracket and is connected with the electric control system through a lead;
the feed bin flange install in on the casing, the spiral pusher is installed in the pivot to set up in the spiral component installing zone, the one end installation bearing frame of pivot, through the installation of bearing frame mounting hole, the other end pass the pivot hole after with gear motor's output shaft.
6. The undersize automatic weighing apparatus of claim 5, wherein the material of the screw pusher is plastic.
7. The automatic undersize product weighing apparatus of claim 5, wherein said electronic control system comprises a frequency converter electrically connected to said gear motor.
8. The undersize automatic weighing apparatus of claim 7, wherein a touch screen is provided on a panel of the electronic control system.
9. An automatic weighing method of undersize using the automatic weighing apparatus according to any one of claims 1 to 8, characterized by comprising the steps of:
s1, the control system obtains a batch starting signal, and the control system automatically clears the current weight and the batch accumulated amount;
s2, in the production process, undersize smoke foam falls into the bin body for temporary storage, the weighing sensor detects the instant weight of the smoke foam and sends the weight to the control system, when the weight of the smoke foam in the bin body exceeds a first set weight, the control system judges whether the current batch is finished, if the current batch is finished, S6 is entered, and if the current batch is not finished, S3 is entered;
s3, the control system accumulates the instant weight into the batch cumulant, clears the current instant weight, controls the electric butterfly valve to be opened, starts the speed reducing motor of the spiral component, and sends the smoke foam in the feed bin body into the dust removal system;
s4, the control system judges whether the current batch is finished, if the current batch is finished, the control system enters S6; if the current batch is not finished, entering S5;
s5, judging whether the current instant weight is less than a second set weight:
if not, the electric butterfly valve is kept opened, the speed reducing motor of the spiral component continues to operate, and judgment is repeated;
if so, the control system resets the current instant weight, calculates the weight of the screened smoke foam in the discharging stage according to the calculated discharging time and the average flow of the previous weighing, and accumulates the weight into the batch cumulant; closing the electric butterfly valve and the speed reducing motor of the screw assembly at the same time;
s6, accumulating the current instant weight into a batch cumulant, sending the batch cumulant to an upper computer, controlling an electric butterfly valve to be opened, starting a speed reducing motor of a spiral component, and sending the residual smoke into a dust removal system;
and S7, ending.
Technical Field
The invention belongs to the technical field of automatic weighing machines, and particularly relates to an automatic undersize weighing device and a weighing method.
Background
Cost control and consumption reduction are important basic management work of cigarette industry enterprises and important guarantee of the upper level of factory management.
In recent years, a loss early warning system in the cigarette production process is set up by a plurality of cigarette factories. The loss in the cigarette production process is mainly the loss of the smoke foam removed at each station of a screening vibration groove, a winnowing station and the like on a production line, and at present, the smoke foam enters a centralized dust removal system through each dust removal point after being generated and cannot be monitored. Therefore, a loss early warning system in the cigarette production process needs to be constructed, a set of automatic undersize cigarette foam weighing device needs to be designed, the weight of cigarette foam generated by each cigarette foam loss point is weighed and monitored, and the cigarette foam is automatically collected to a centralized dust removal system for unified treatment.
The automatic weighing of current similar material generally adopts the feed bin balance of nonstandard customization to realize because cigarette foam mobility is not good, easily in the feed bin "bridge", and the load is difficult to control, and then causes cigarette foam putty in the feed bin or in the dust removal pipeline.
Disclosure of Invention
The invention aims to provide an automatic undersize material weighing device and an automatic undersize material weighing method, which are used for solving the problems that the automatic weighing of materials in the prior art cannot automatically count the weight of undersize tobacco powder of each batch and the blocking of materials in a bin or a dust removal pipe.
The invention is realized by the following technical scheme:
an automatic undersize weighing device comprises an electric butterfly valve, a hose, a scale body bracket, a blanking hopper, a stock bin body, a weighing sensor, a spiral component and an electric control system;
the electric butterfly valve is arranged on the centralized dust removal negative pressure air pipe, the lower end of the centralized dust removal negative pressure air pipe is connected with the hose, and the other end of the hose is connected with the blanking hopper;
the storage bin body is supported on the scale body bracket through a weighing sensor, and the blanking hopper corresponds to a discharge hole of the storage bin body;
part of the spiral component is arranged in the stock bin body and is in running fit with the stock bin body;
the electric control system is in electric signal connection with a power system of the spiral component;
the electric butterfly valve, the weighing sensor and the electric control system are all connected with a control system through electric signals.
Including the storehouse material apron, the storehouse apron with the articulated connection of feed bin body.
The number of the weighing sensors is three.
The storage bin body comprises a shell, a material storage area, a feeding flaring and a spiral component mounting area; the material storage area, the feeding flaring opening and the spiral component mounting area are communicated and arranged in the shell;
a rotating shaft hole is formed in the shell at one end of the spiral component mounting area, and a bearing seat mounting hole is formed in the other end of the shell;
the material storage area is of an inverted cone structure.
The spiral component comprises a speed reducing motor, a bin flange, a spiral pusher and a bearing seat;
the speed reducing motor is fixed on the scale body bracket and is connected with the electric control system through a lead;
the feed bin flange install in on the casing, the spiral pusher is installed in the pivot to set up in the spiral component installing zone, the one end installation bearing frame of pivot, through the installation of bearing frame mounting hole, the other end pass the pivot hole after with gear motor's output shaft.
The spiral pusher is made of plastic.
The electric control system comprises a frequency converter which is electrically connected with the speed reducing motor.
And a touch screen is arranged on a panel of the electric control system.
An automatic undersize weighing method, using the automatic weighing device of any one of the above, comprising the steps of:
s1, the control system obtains a batch starting signal, and the control system automatically clears the current weight and the batch accumulated amount;
s2, in the production process, undersize smoke foam falls into the bin body for temporary storage, the weighing sensor detects the instant weight of the smoke foam and sends the weight to the control system, when the weight of the smoke foam in the bin body exceeds a first set weight, the control system judges whether the current batch is finished, if the current batch is finished, S6 is entered, and if the current batch is not finished, S3 is entered;
s3, the control system accumulates the instant weight into the batch cumulant, clears the current instant weight, controls the electric butterfly valve to be opened, starts the speed reducing motor of the spiral component, and sends the smoke foam in the feed bin body into the dust removal system;
s4, the control system judges whether the current batch is finished, if the current batch is finished, the control system enters S6; if the current batch is not finished, entering S5;
s5, judging whether the current instant weight is less than a second set weight:
if not, the electric butterfly valve is kept opened, the speed reducing motor of the spiral component continues to operate, and judgment is repeated;
if so, the control system resets the current instant weight, calculates the weight of the screened smoke foam in the discharging stage according to the calculated discharging time and the average flow of the previous weighing, and accumulates the weight into the batch cumulant; closing the electric butterfly valve and the speed reducing motor of the screw assembly at the same time;
s6, accumulating the current instant weight into a batch cumulant, sending the batch cumulant to an upper computer, controlling an electric butterfly valve to be opened, starting a speed reducing motor of a spiral component, and sending the residual smoke into a dust removal system;
and S7, ending.
The invention has the beneficial effects that:
1. the undersize smoke foam is automatically weighed, and the batch weight is automatically counted.
2. Through control spiral rotational speed, can realize accurate control cigarette foam load, and then realize that the negative pressure is carried and is pressed the operation of maximum efficiency.
3. The electric butterfly valve controls the dedusting negative pressure air pipe, so that the dedusting air quantity is greatly saved, and the energy consumption of the fan is reduced.
Drawings
FIG. 1 is a schematic structural view of an automatic undersize weighing device according to the present invention;
FIG. 2 is a schematic view of a spiral assembly;
FIG. 3 is a cross-sectional view of a cartridge body;
FIG. 4 is a block diagram of the working flow of the automatic weighing method for objects under the control of the present invention.
Description of the reference numerals
1. Concentrate dust removal negative pressure tuber pipe, 2 electric butterfly valve, 3 hoses, 4 balance body supports, 5 blanking fill, 6 feed bin apron, 7 feed bin bodies, 8 weighing sensor, 9 spiral components, 10 electrical system, 701 feeding flaring, 702 stock district, 703 spiral components installing zone, 901 gear motor, 902 feed bin flange, 903 spiral pusher, 904 bearing frame, 905 pivot.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
As shown in fig. 1 to 3, an automatic weighing device for undersize products comprises an
Electric butterfly valve installs on concentrating dust removal negative
The lower end of the centralized dust removal negative pressure air pipe is connected with a hose, and the other end of the hose is connected with a blanking hopper;
the feed bin body is supported on the scale body bracket through three weighing sensors, and the blanking hopper corresponds to the discharge hole of the feed bin body.
The bin cover plate is hinged with the bin body and used for sealing the bin body.
The spiral component is arranged in the bin body and is in running fit with the bin body.
The electric control system is in electric signal connection with the power system of the screw assembly.
The electric butterfly valve, the weighing sensor and the electric control system are all connected with the electric signal of the control system.
The
A rotating shaft hole is formed in the shell at one end of the spiral component mounting area, and a bearing seat mounting hole is formed in the other end of the shell;
the material storage area is of an inverted cone structure, so that the phenomenon of bridging of materials in the stock bin body is avoided.
The
The speed reducing motor is fixed on the scale body bracket and is connected with an electric control system through a lead;
the feed bin flange mounting is on the casing, and the spiral pusher is installed on
The spiral pusher is made of polytetrafluoroethylene materials, so that the frictional resistance between the spiral pusher and the bin body is reduced.
The electric control system comprises a frequency converter which is electrically connected with the speed reducing motor, and a touch screen is arranged on a panel of the electric control system, so that the operation and maintenance are convenient.
The technical scheme also provides an automatic undersize weighing method, which uses the automatic weighing device of any one of the above items, and as shown in fig. 4, comprises the following steps:
s1, the control system obtains a batch starting signal and automatically clears the current weight and the batch accumulated amount; here, the data of the previous batch is cleared.
S2, in the production process, undersize smoke foam falls into the bin body for temporary storage, the weighing sensor detects the instant weight of the smoke foam and sends the weight to the control system, and the control system performs control judgment according to the instant weight; when the weight of the smoke foam in the silo body exceeds a first set weight (set according to needs), the control system firstly judges whether the current batch is finished, and if the current batch is finished, the step is S6; if the current batch is not finished, entering S3;
s3, the control system accumulates the instant weight into the batch cumulant, clears the current instant weight, controls the electric butterfly valve to open, starts the speed reducing motor of the spiral component, and the spiral pusher sends the smoke foam in the feed bin body to the dust removal system; spiral component is under the starting condition, and this internal cigarette foam weight of feed bin is reducing, but includes and continue to get into this internal cigarette foam weight of feed bin etc. in process of production, and weighing sensor transmits the instant weight data who detects for control system at any time.
S4, the control system judges whether the current batch is finished, if the current batch is finished, the control system enters S6; if the current batch is not finished, entering S5;
s5, judging whether the current instant weight is less than a second set weight: the current instant weight is the instant weight detected by the weighing sensor when the electric butterfly valve is opened and the screw assembly is in the running state, the second set weight is equivalent to the minimum threshold value for stopping running and closing the electric butterfly valve when the screw assembly is in the running state, and the second set weight is smaller than the first set weight.
If not, namely the current instant weight is larger than the second set weight, the electric butterfly valve is kept opened, the speed reducing motor of the spiral component continues to operate, and the steps S4 and S5 are repeatedly carried out, until the current instant weight is smaller than the second set weight, the next section of operation is carried out.
If so, the control system resets the current instant weight, calculates the weight of the screened smoke foam in the discharging stage according to the calculated discharging time and the average flow of the previous weighing, and accumulates the weight into the batch cumulant; and closing the electric butterfly valve and the speed reducing motor of the screw assembly.
And S6, accumulating the current instant weight into the batch cumulant, sending the batch cumulant to an upper computer, controlling an electric butterfly valve to be opened, starting a speed reducing motor of the spiral component, and sending the residual smoke into a dust removal system.
And S7, ending.
Through the steps, the control system completes automatic statistics of the weight of the screened smoke in the whole batch.
According to the technical scheme, the undersize cigarette foam weight of each sieving vibration groove, winnowing station and other stations in the production process of each batch of cut tobacco can be automatically counted, and the undersize cigarette foam weight is in butt joint with a centralized dust removal system, so that automatic collection of cigarette foam is realized.
This technical scheme adopts back taper feed bin and the big helical structure in bottom, avoids feed bin "bridging" to ability accurate control load solves the putty problem.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
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