CN203740149U - Double-helix quantitative feeding device - Google Patents

Double-helix quantitative feeding device Download PDF

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Publication number
CN203740149U
CN203740149U CN201420145181.2U CN201420145181U CN203740149U CN 203740149 U CN203740149 U CN 203740149U CN 201420145181 U CN201420145181 U CN 201420145181U CN 203740149 U CN203740149 U CN 203740149U
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CN
China
Prior art keywords
auger
shell
winch
hopper
helix
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
CN201420145181.2U
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Chinese (zh)
Inventor
朱佩婷
刘光年
芦志强
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.)
Hefei Gu Tai Automation Co Ltd
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Hefei Gu Tai Automation 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
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Priority to CN201420145181.2U priority Critical patent/CN203740149U/en
Application granted granted Critical
Publication of CN203740149U publication Critical patent/CN203740149U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the field of metering equipment and discloses a double-helix quantitative feeding device which comprises two sets of winches. Each set of the winches is arranged in a corresponding winch shell, and input ends of the winches extend out of the winch shells to be connected with a transmission device. The double-helix quantitative feeding device is characterized in that the tail ends of the winch shells are communicated through a discharging pipe which extends out of the downmost winch shell to correspond with a metering hopper, a hopper is arranged at the left upper end of the uppermost winch shell, and the uppermost winch shell is communicated with the downmost winch shell through a trough pipe. Feeding speed is controlled through a mechanical portion, so that blockage of the winch shells can be avoided. The double-helix quantitative feeding device is simple and reasonable in structure and has wide market prospect.

Description

Double helix metering device
Technical field
The utility model relates to a kind of metering device, is specifically related to a kind of double helix metering device, belongs to metering outfit field.
Background technology
In the process of powder measuring fixed amount, often to measure the granular material of some poor fluidities, as materials such as phosphoric acid hydrogen ammonia, sulphur ammonium that aqueous ingredients is higher, flour.These materials are poor fluidity not only, and easily forms agglomerate.If adopt conventional gravity type boat davit feed-type, feed state will be inhomogeneous, to the error of metering, will be difficult to control.Herein emphasis is inquired into and is adopted the feed-type of screw feeder to make as far as possible feed become evenly to guarantee measuring accuracy.
In industries such as fine chemistry industry, feed, chemical fertilizer, food, large batch of loose unpacked material need to be divided in the packaging bag that installs to definite value by norm, this process is called measuring fixed amount packing.In the process of measuring fixed amount packing, these two indexs of trueness error of the speed of metering packing (the packing number completing in the unit time) and metering are brought examination metering packing equipment performance conventionally.The speed of metering packing should be fast, and precision again standard is the target that metering outfit is pursued.The speed that should guarantee metering guarantees the precision of measuring again, and this is conflict in fact.In actual metering process, we will make every effort to find this equilibrium point, meet the speed that improves metering packing under the prerequisite of measuring accuracy as far as possible.The good material of flowing power, such as particulate material, the metering method that we adopt is conventionally shown in Fig. 1.In Fig. 1, we clearly find out, in whole metering process, emptying door experienced altogether standard-sized sheet, half-open, close this three processes.These three processes be exactly in fact quick feed, at a slow speed feed, stop the process of feed.The action variation of emptying door aperture is to be controlled by PLC program by the variation of the weight signal of LOAD CELLS.The package metro-measuring of definite value 30kg of take is example, starting stage emptying door is all opened, material flows in weighing hopper fast by conducting oneself with dignity, weight in weighing hopper reaches predefined a certain value SP1(such as 28.5kg), now LOAD CELLS feeds back to controller by weight signal, corresponding actuating unit is closed the large portion of emptying door, carries out feed at a slow speed.Until while approaching expected value SP2 (consider to fly material in the air, this is worth SP2<30kg), emptying door Close All, stops feed.As can be seen from the foregoing description, the setting of SP1 value is very crucial, too small if SP1 value is set, so at a slow speed the feed time just longer, the time of whole metering can extend, package speed declines, precision is controlled just easier.Otherwise it is excessive that SP1 value is set, the quick feed time is elongated, thereby total feed time is shortened, and package speed improves, and because SP1 value is excessive, the time of last feed is at a slow speed shorter, and the precision causing is controlled relatively difficult.With S, represent package speed, A represents that measuring accuracy draws the following conclusions:
S∝SP1
A∝1/SP1
Hence one can see that, and the setting of SP1 value is worthy of careful study very much, and for the good material of flowing power, SP1 value is can as far as possible set larger, can meet the requirement that precision is controlled, and also can improve the speed of metering.Yet the material that many enterprises produce is not all the good material of flowing power, this wherein has the powder of the non-constant of a lot of flowing power, and such as the higher sulphur ammonium of aqueous ingredients, PTA, soda ash, flour etc., these materials often can occur with lumps.
If still follow gravity type boat davit feed-type (Fig. 1) simply, we can find:
When emptying door is all opened, although material can fall in large quantities, never even, this be because the material of poor fluidity itself may lump or material at hopper bridging.
When the large portion of emptying door closes, this powder likely just cannot decline, completely built on stilts in hopper, causes the process of package metro-measuring to carry out.According to this situation, too small if SP1 value is set, at a slow speed the time of feed elongated, the not smooth chance of blanking increases.If it is excessive that SP1 value is set, the time of quick feed is elongated, and the chance that the phenomenon of punching material occurs increases.During quick feed, because material has lumps, the possibility of superorder scale value increases.Therefore, for the package metro-measuring of these materials, if merely consider that the setting of SP1 parameter is to can't resolve problem certainly.Obviously, the principle of gravity feeding mode is impracticable, must consider new feed-type.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of double helix metering device, and this device assigns to control the speed of feed by Machinery Ministry, can not cause betting contest to auger shell, and this apparatus structure advantages of simple, has larger market outlook.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of double helix metering device, this device comprises two groups of augers, every group of auger is separately positioned in corresponding auger shell, described two groups of auger input ends extend auger shell and are connected with driving device outward, it is characterized in that: described auger shell end communicates by tremie pipe, and it is corresponding with weighing hopper that tremie pipe extends the auger shell of below, the auger shell left upper end of described the top is provided with hopper, between the auger shell of the auger shell of described the top and below, by hopper pipe, is connected.
Described two groups of augers are setting up and down, and the auger diameter above being positioned at is greater than below auger diameter.
Described weighing hopper is provided with weighing unit, and this weighing unit is controlled by Weighing control cabinet.
The beneficial effects of the utility model are: this device assigns to control the speed of feed by Machinery Ministry, can not cause betting contest to auger shell, and this apparatus structure advantages of simple, have larger market outlook.
Accompanying drawing explanation
Fig. 1 is gravity type boat davit feed-type structural representation in background technology;
Fig. 2 is the utility model structural representation.
In figure: 1-auger; 2-auger shell; 3-driving device; 4-tremie pipe; 5-weighing hopper; 6-hopper; 7-weighing unit; 8-Weighing control cabinet.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 2, a kind of double helix metering device, this device comprises two groups of augers 1, every group of auger 1 is separately positioned in corresponding auger shell 2, two groups of auger 1 input ends extend auger shell 2 and are connected with driving device 3 outward, auger shell 2 ends communicate by tremie pipe 4, and it is corresponding with weighing hopper 5 that tremie pipe 4 extends the auger shell 2 of below, auger shell 2 left upper ends of the top are provided with hopper 6, between the auger shell 2 of the auger shell 2 of the top and below, by hopper pipe 9, be connected, two groups of augers 1 are setting up and down, and auger 1 diameter that is positioned at top is greater than below auger 1 diameter, weighing hopper 6 is provided with weighing unit 7, this weighing unit 7 is controlled by Weighing control cabinet 8.
The utility model is in the process of whole metering, and screw feeder work is divided into three phases:
First stage, quick feed, big or small screw motor rotates simultaneously.
Subordinate phase, feed at a slow speed, king bolt feeder stops operating, and minor spiral feeder remains in operation.
Phase III, stops feed, and big or small screw feeder shuts down.
More than show and described groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (3)

1. double helix metering device, this device comprises two groups of augers, every group of auger is separately positioned in corresponding auger shell, described two groups of auger input ends extend auger shell and are connected with driving device outward, it is characterized in that: described auger shell end communicates by tremie pipe, and it is corresponding with weighing hopper that tremie pipe extends the auger shell of below, the auger shell left upper end of described the top is provided with hopper, between the auger shell of the auger shell of the top and below, by hopper pipe, is connected.
2. double helix metering device according to claim 1, is characterized in that: described two groups of augers are setting up and down, and the auger diameter that is positioned at top is greater than below auger diameter.
3. double helix metering device according to claim 1, is characterized in that: described weighing hopper is provided with weighing unit, and this weighing unit is controlled by Weighing control cabinet.
CN201420145181.2U 2014-03-28 2014-03-28 Double-helix quantitative feeding device Expired - Fee Related CN203740149U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420145181.2U CN203740149U (en) 2014-03-28 2014-03-28 Double-helix quantitative feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420145181.2U CN203740149U (en) 2014-03-28 2014-03-28 Double-helix quantitative feeding device

Publications (1)

Publication Number Publication Date
CN203740149U true CN203740149U (en) 2014-07-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104760725A (en) * 2015-04-16 2015-07-08 潘泽忠 High-precision feeder
CN105691649A (en) * 2014-11-28 2016-06-22 重庆七彩虹化工有限公司 Double-screw feeding, measurement and bagging device for powdery painting
CN112166081A (en) * 2020-01-02 2021-01-01 苏州明志科技股份有限公司 Material conveying mechanism and weighing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105691649A (en) * 2014-11-28 2016-06-22 重庆七彩虹化工有限公司 Double-screw feeding, measurement and bagging device for powdery painting
CN104760725A (en) * 2015-04-16 2015-07-08 潘泽忠 High-precision feeder
CN112166081A (en) * 2020-01-02 2021-01-01 苏州明志科技股份有限公司 Material conveying mechanism and weighing system
WO2021134758A1 (en) * 2020-01-02 2021-07-08 苏州明志科技股份有限公司 Material conveying mechanism and weighing system

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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: 20140730

Termination date: 20180328

CF01 Termination of patent right due to non-payment of annual fee