CN2929670Y - Subtraction burdening scale - Google Patents

Subtraction burdening scale Download PDF

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Publication number
CN2929670Y
CN2929670Y CN 200620091580 CN200620091580U CN2929670Y CN 2929670 Y CN2929670 Y CN 2929670Y CN 200620091580 CN200620091580 CN 200620091580 CN 200620091580 U CN200620091580 U CN 200620091580U CN 2929670 Y CN2929670 Y CN 2929670Y
Authority
CN
China
Prior art keywords
hopper
sensor
subtraction
charging valve
drainage conduit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 200620091580
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Chinese (zh)
Inventor
马绍先
纪永成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northeast University Design and Research Institute Co Ltd
Original Assignee
Northeast University Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northeast University Design and Research Institute Co Ltd filed Critical Northeast University Design and Research Institute Co Ltd
Priority to CN 200620091580 priority Critical patent/CN2929670Y/en
Application granted granted Critical
Publication of CN2929670Y publication Critical patent/CN2929670Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A subtraction proportion scale comprises a bucket, an inlet valve, a wind port, a sensor and a discharging pipe screw, which has the advantages that four sensors are equipped to measure the total weight of the bucket and the discharged bucket respectively, thereby obtaining the weight of the discharging material by minus the two. The utility model adopts a programmable controller to control the opening and closing of the inlet valve and the discharging pipe screw to discharge materials of a certain quantity according to the directing signals. The subtraction proportion scale of the utility model has a simple structure, a convenient manipulation and a precise and practicable measuring which is expected to get a good economic benefit after the wide spread of carbon plants.

Description

The subtraction burden balance
Technical field
The utility model belongs to the technical field of the weighing and the metering of quality of material or weight, relates to the subtraction burden balance that supply batching usefulness in a kind of carbon element factory technological process of production especially particularly.
Background technology
The subtraction burden balance are key equipments that carbon element factory's siccative prepares burden process, and more domestic small-sized carbon element factories adopt the manually-operated batching more at present, and labor strength is big, the operating environment poor hygienic, and metering precision is not high.Some large-scale modernized carbon element factories then use the weightless scale from external introduction, this weightless scale adopts the working method of continuous feed and continuous discharging, should the metering feeding amount, measure load again, both dynamically subtract each other to draw actual load by MICROCOMPUTER PROCESSING.Thereby this weightless scale structure is comparatively complicated, the cost height, and investment is big, and it is more to promote difficulty.
The utility model content
The purpose of this utility model is to seek a kind of characteristics such as electromechanical integration, dosing that have, and dynamic accuracy is higher and simple in structure, cheap, thereby subtraction burden balance easy to utilize.
The subtraction burden balance that the utility model proposed comprise hopper, charging valve, ventilating opening, sensor and drainage conduit spiral, it is characterized in that:
1) be provided with one group of 4 sensor, each sensor has two groups of input end and the output terminals that can distinguish weighing hopper general assembly (TW) and discharge rear hopper weight;
2) one of sensor group of input end and output terminal are connected respectively to hopper and charging valve;
3) sensor its another group input end and output terminal are connected respectively to hopper and drainage conduit spiral frequency control motor switch;
4) the drainage conduit spiral is dragged by frequency control motor.
Discontinuous operation was adopted when subtraction burden balance of the present utility model were equipped with for general carbon element factory siccative.During work, earlier by charging valve blowing in hopper, when hopper is filled after sensor just corresponding compressive stress signal, the while is sent fully loaded weight signal with the charging valve closing to the charging valve.When the needs blowing, the frequency control motor that then starts the discharge nozzle spiral was to the next process discharge after the scale bucket was fully loaded.Weight signal when sensor can constantly detect the hopper discharge in the discharge process, when in case the signal that sensor receives reaches setting value, it just can send the signal of closing the discharge nozzle spiral to frequency control motor, like this, the subtraction burden balance just can technological requirement accurately discharge the needed material of burden process regularly, quantitatively.Because the volume of hopper is that weight is fixed numeric values, as long as accurately measure the amount of in the discharge process, being retained in the hopper, just draw the amount of the material that is discharged at once, promptly the weight with the fully loaded material of hopper deducts the weight that the weight of retaining behind the discharge draws the material that is discharged, so, innovation and creation called after subtraction burden balance of the present utility model or subtraction scale.
Subtraction burden balance of the present utility model adopt programmable controller (hereinafter to be referred as PLC) to control automatically, promptly control the switching of charging valve and drainage conduit spiral, and its control program block diagram is as follows:
1) start subtraction scale master switch, starter sends signal to sensor;
2) after the sensor received signal, if feedback signal explanation hopper less than, then open the charging valve, charging in hopper;
3) fully loaded as sensor feedback signal explanation hopper, then close the charging valve, stop to hopper feed, wait for the signal that next workshop section will expect;
4), start the outer discharge of drainage conduit screw, when outside the pipe screw during discharge when receiving next workshop section signal will be expected the time, weight behind its discharge of sensor record, when this weight reached setting value, sensor just sent the signal of cutting out the discharge nozzle spiral, stopped outside discharge; And then send startup charging valve to hopper feed;
5) it is fully loaded to detect hopper as sensor, sends shutdown signal to the charging valve at once, waits for sending of enabling signal next time.
The charging valve is long to be closed, and chain with the pipe spiral, only sends at starter and could open after opening signal stops discharge with the pipe spiral, just can close and also have only after sensor sends the hopper full signal.
Subtraction burden balance of the present utility model are simple in structure, easy to operate and measure accurate and practical, so after carbon element factory's promotion and application, be expected to obtain good economic benefits.
Description of drawings
Fig. 1 is the structural representation of subtraction burden balance.(1) charging valve among Fig. 1; (2) ventilating opening; (3) hopper bearing; (4) sensor; (5) hopper; (6) drainage conduit spiral; (7) frequency control motor.
Fig. 2 is the flow chart of the automatic control of subtraction burden balance.
Embodiment
Below in conjunction with Figure of description the structure and the course of work of subtraction burden balance of the present utility model are made concrete elaboration and additional, and optimal way of the present utility model is implemented in explanation.
Embodiment 1
Be rolled into a up big and down small hollow rounding stage body (curved surface) an of hollow cylinder (curved surface) and its underpart with steel plate, both weldings constitute hopper 5 for one, hopper top is fixed and is placed in flank on the hopper bearing 3, one group of four weight sensor 4 promptly is installed below the bearing.Each sensor has two groups of input end and the output terminals that can distinguish weight behind weighing hopper general assembly (TW) and the discharge.The one group of input end and the output terminal of sensor are connected respectively to hopper and charging valve; The input end of another group and output terminal are connected respectively to hopper and drainage conduit screw motor switch.The hopper end face is connected with ventilating opening 2 with charging valve 1 by the weight orchid.And the bottom of hopper is connected with drainage conduit spiral 6 by the weight orchid.The drainage conduit spiral is dragged by buncher 7.
Charging valve, sensor and frequency control motor are controlled automatically by the PLC controller.Its control program is as follows:
1) start subtraction scale master switch, starter sends signal to sensor;
2) after the sensor received signal, if feedback signal explanation hopper less than, then open the charging valve, charging in hopper;
3) fully loaded as sensor feedback signal explanation hopper, then close the charging valve, stop to hopper feed, wait for the signal that next workshop section will expect;
4) when receiving next workshop section signal will be expected, start the outer discharge of drainage conduit screw, when outside the pipe screw during discharge, weight behind its discharge of sensor record, when this weight reached setting value, sensor just sent the signal of cutting out the discharge nozzle spiral, stopped outside discharge; And then send startup charging valve to hopper feed;
5) it is fully loaded to detect hopper as sensor, sends shutdown signal to the charging valve at once, waits for sending of enabling signal next time.
Among the embodiment of the present utility model, the charging valve is long to be closed, and it is that the frequency control motor of drainage conduit spiral is linked.Promptly only send and to open the charging valve after opening signal is closed (stopping discharge) with the pipe spiral at starter; And have only after sensor sends the hopper full signal charging valve just can close.
Embodiment 2
Be welded into a hollow prism and a up big and down small hollow chamfered edge platform with steel plate, the terrace with edge top merges mutually with prismatic bottom size and is welded as a whole, and this just constitutes the hopper 5 of subtraction burden balance.The prismatic wing that is welded into steel plate in hopper top constitutes hopper bearing (3), and bearing and hopper are settled on one group of four sensor 4, must mix up the verticality of hopper during installation, guarantees that each sensor and test data are with signal-balanced and consistent.Identical with embodiment 1, each sensor has two groups of input end and the output terminals that can distinguish weighing hopper general assembly (TW) and discharge rear hopper weight, wherein one group of input end and output terminal are connected respectively to hopper and charging valve, and another group input end and output terminal are connected respectively to hopper and drainage conduit spiral frequency control motor switch.The hopper top has two circular holes with the steel plate sealing, and two weight orchids are installed respectively, and one of them is connected with charging valve 1, and another weight orchid then is connected to ventilating opening 2.Feed hopper bottom also with the steel plate sealing, open a circular hole and the weight orchid be installed by the center, and this weight orchid is connected with drainage conduit spiral 6.The drainage conduit spiral adopts frequency control motor 7 to drag.
The interlock operation of charging valve, sensor and frequency control motor can be controlled automatically with the embodiment 1 the same PLC of employing controller, also can adopt single-chip microcomputer or PC to realize control automatically, and its control program is with embodiment 1, so locate to repeat no more.

Claims (2)

1. subtraction burden balance comprise hopper, charging valve, ventilating opening, sensor and drainage conduit spiral, it is characterized in that:
1) be provided with one group of 4 sensor, each sensor has two groups of input end and the output terminals that can distinguish weighing hopper general assembly (TW) and discharge rear hopper weight;
2) one of sensor group of input end and output terminal are connected respectively to hopper and charging valve;
3) another group input end and the output terminal of sensor are connected respectively to hopper and drainage conduit spiral frequency control motor switch;
4) the drainage conduit spiral is dragged by frequency control motor.
2. by the described subtraction burden balance of claim 1, it is characterized in that said charging valve and drainage conduit spiral control automatically by programmable controller.
CN 200620091580 2006-06-16 2006-06-16 Subtraction burdening scale Expired - Fee Related CN2929670Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620091580 CN2929670Y (en) 2006-06-16 2006-06-16 Subtraction burdening scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620091580 CN2929670Y (en) 2006-06-16 2006-06-16 Subtraction burdening scale

Publications (1)

Publication Number Publication Date
CN2929670Y true CN2929670Y (en) 2007-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620091580 Expired - Fee Related CN2929670Y (en) 2006-06-16 2006-06-16 Subtraction burdening scale

Country Status (1)

Country Link
CN (1) CN2929670Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102183287A (en) * 2011-03-29 2011-09-14 河南丰博自动化有限公司 Weightlessness-principle-based powdery material continuous metering control method and device thereof
CN101760788B (en) * 2010-01-30 2011-11-02 童华波 Cocoon feeding device of cocoon cooking machine
CN110715713A (en) * 2019-09-03 2020-01-21 邳州南泰食品有限公司 Weighing equipment for weighing, metering and conveying shock in fruit primary processing

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101760788B (en) * 2010-01-30 2011-11-02 童华波 Cocoon feeding device of cocoon cooking machine
CN102183287A (en) * 2011-03-29 2011-09-14 河南丰博自动化有限公司 Weightlessness-principle-based powdery material continuous metering control method and device thereof
CN102183287B (en) * 2011-03-29 2013-03-27 河南丰博自动化有限公司 Weightlessness-principle-based powdery material continuous metering control method and device thereof
CN110715713A (en) * 2019-09-03 2020-01-21 邳州南泰食品有限公司 Weighing equipment for weighing, metering and conveying shock in fruit primary processing

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070801

Termination date: 20100616