CN104647603A - Weighing device for continuous dry mortar production line - Google Patents

Weighing device for continuous dry mortar production line Download PDF

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Publication number
CN104647603A
CN104647603A CN201510131645.3A CN201510131645A CN104647603A CN 104647603 A CN104647603 A CN 104647603A CN 201510131645 A CN201510131645 A CN 201510131645A CN 104647603 A CN104647603 A CN 104647603A
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CN
China
Prior art keywords
weighing
metering
stirring shaft
weighing hopper
production line
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.)
Pending
Application number
CN201510131645.3A
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Chinese (zh)
Inventor
徐祥来
储瑞华
何士林
蒋万荣
周苏红
Original Assignee
徐祥来
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Filing date
Publication date
Application filed by 徐祥来 filed Critical 徐祥来
Priority to CN201510131645.3A priority Critical patent/CN104647603A/en
Publication of CN104647603A publication Critical patent/CN104647603A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04Supplying or proportioning the ingredients
    • B28C7/0481Plant for proportioning, supplying or batching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04Supplying or proportioning the ingredients
    • B28C7/0404Proportioning
    • B28C7/0418Proportioning control systems therefor

Abstract

The invention relates to a weighing device for a continuous dry mortar production line. The weighing device comprises a powder metering mechanism and a mortar metering mechanism which are respectively arranged on the continuous dry mortar production line, wherein the powder metering mechanism comprises a support frame, a pull rod, a metering hopper, a conveying screw and a feeding screw; the metering hopper is suspended on the support frame through at least two pull rods, and the conveying screw and the feeding screw are respectively communicated with an output port and an input port of the metering hopper; the mortar metering mechanism comprises a metering panel and a feed plate arranged on the upper end of the metering panel, a plurality of small metering bins which are evenly distributed are arranged on the metering panel, a feed inlet is formed in the feed plate, the position of the feed inlet corresponds to the small metering bins, and the feed inlet is distributed along the motion trace direction of the metering panel. The weighing device has the beneficial effects of being applicable to dry mortar continuous production and accurate in metering.

Description

The weighing device of continous way dry powder mortar production line
Technical field
The present invention relates to the production equipment of dry powder mortar production line, particularly relate to a kind of weighing device of continous way dry powder mortar production line.
Background technology
Current dry powder mortar production line metering method adopts spiral metering or platform scale Weighing, the low precision of spiral metering, and platform scale weigh make dry powder and mortar produce be interrupted because of weighing process, continous way can not be realized produce, simultaneously these two kinds of Weighing modes cannot auto modification deviation, need manually to compensate, automaticity and production efficiency low.
Summary of the invention
The object of the invention is to the deficiency overcoming above-mentioned prior art, provide a kind of and be applicable to continuous seepage and measure the weighing device of accurate a kind of continous way dry powder mortar production line.
For achieving the above object, weighing device of the present invention comprises and is arranged at powder metering mechanism on dry powder mortar production line and sand metrological service respectively; Described powder metering mechanism comprises bracing frame, pull bar, weighing hopper, conveyor screw and feed supplement spiral, and described weighing hopper is suspended on bracing frame by least two pull bars, and described conveyor screw is communicated with input port with the delivery outlet of weighing hopper respectively with feed supplement spiral; Described mortar metrological service comprises metering disk and is arranged on the feedboard of this metering disk upper end, described metering disk is provided with some little storehouses of uniform metering, described feedboard is provided with charging aperture, and this gating location is corresponding with the little storehouse of metering, and along metering disk movement locus directional spreding.
In order to realize the accurate measurement of powder and mortar, described weighing device also comprises pulling force sensor and PLC, described in
Sensor setting is between bracing frame and weighing hopper and metrical information is transferred to PLC by timing, PLC carries out correlation computations according to described metrical information and setting value, and control the rotating speed of conveyor screw and the rotation of feed supplement spiral according to result of calculation, mortar is carried and keeps setting flow; Described powder metering mechanism also comprises the motor controlled by PLC, and the rotating shaft of this motor is connected with the rotating shaft of metering disk, completes to fill each mortar measuring little storehouse and measure injection in the stroke that powder metering conveying mouth is moved at relative charging aperture.
In order to realize the continuous seepage of dry powder and mortar, a preferred powder continuous metering transportation scheme is, setting feed flow V,
The powder upper weight limit value Mmax of weighing hopper and powder lower weight limit value Mmin; Described correlation computations comprises: calculate the current feed flow Vd of mortar by current variable Md, current feed flow Vd calculated with comparing of setting feed flow value V, compare the result of calculating by this, control the rotating speed of conveyor screw, mortar is carried and keeps setting flow; Current variable Md with calculate powder upper weight limit value Mmax and comparing of powder lower weight limit value Mmin, when Md≤Mmin, feed supplement spiral work, start feed supplement, until complete feed supplement during Md=Mmax.
Shape and the connection scheme of a preferred weighing hopper are that described weighing hopper is by cylinder and the cone cylinder being connected to this cylinder bottom
Formed, the outer circumference surface of described cylinder is evenly equipped with three engaging lugs, is connected by pull bar and pulling force sensor between support frame as described above and each engaging lug on weighing hopper, and by pull bar, weighing hopper is suspended on bracing frame.
In order to realize the accurate measurement of powder, prevent impurity to be mixed into, the upper end of described weighing hopper top cylinder is provided with capping, described in
Input port is arranged on also facing to feed supplement spiral output in this capping, and described delivery outlet is arranged on cone cylinder lower end and faces toward conveyor screw output.
In order to avoid the adhesion in weighing hopper of powder, built on stilts, in weighing hopper, be provided with anti-powder make somebody a mere figurehead mechanism, this mechanism comprises stirring motor, stirring shaft, connecting plate, the first agitator arm and the second agitator arm, described stirring motor is arranged on weighing hopper upper end, stirring shaft is connected with the rotating shaft of stirring motor and makes this stirring shaft be in weighing hopper center, and connecting plate is connected on stirring shaft, and some first agitator arms and the second agitator arm are connected on connecting plate and stirring shaft.
During the structural design scheme of a preferred anti-built on stilts mechanism, in weighing hopper, corresponding stirring shaft terminal position is provided with stirring shaft
Supporting device, this mechanism comprises support ring, bearing and at least three cramp bars, described support ring is arranged on the center of corresponding stirring shaft end in weighing hopper, three cramp bars are distributed on support ring outer circumference surface and one end and are connected one end with support ring and are connected with weighing hopper inner chamber, and stirring shaft end is rotationally connected by described bearing and support ring.
A transmission scheme preferably preventing built on stilts mechanism is that be fixed on by stirring motor in described capping, the center of described capping is provided with hole, and the stirring shaft upper end being in weighing hopper center connects through this Kong Yurang motor shaft.
A preferred agitator arm structural design scheme is, on the lower surface that first agitator arm arranges described rectangular slab symmetrically relative to stirring shaft and side, two ends, described second agitator arm one end is vertically connected on and is arranged on stirring shaft bottom and is distributed on stirring shaft outer circumference surface along the hand of spiral.
A preferred connecting plate design and connection scheme are that connecting plate is designed to rectangular slab, and this rectangular slab vertically and symmetrically
Be connected to stirring shaft, two bracing pieces are symmetrical tilting relative to stirring shaft in rectangular slab upper end, and upper and lower end is connected with stirring shaft and rectangular slab respectively.
A preferred charging aperture design charging aperture is designed to mounting hole or the scallop hole of circumferentially directional spreding.
The present invention adopts metering disk to carry out volume weighing to the sandstone weighing large, and metering disk is made the little storehouse of some meterings distributed along its movement locus, charging aperture also distributes along movement locus simultaneously, ensure that filling each in same time measures little storehouse sand, thus ensure to carry out fast volume weighing with constant volume to a large amount of sandstones, by this sandstone proportion obtained before, just more accurate weight weighing can be carried out to the sandstone of continuous-flow; And for weighing relatively little powder, the present invention's weighing hopper being suspended to bracing frame carries out weight weighing, and in time the weighing scale value of perception is transferred to PLC by pulling force sensor, by PLC, correlation computations is carried out to the variable of sensor transmissions, by controlling the rotating speed of conveyor screw and the open and close of feed supplement spiral, ensure that conveyor screw carries set amount powder within the unit interval, thus can measure accurately the powder of continuous-flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of weighing device.
Fig. 2 is the powder metering structural scheme of mechanism of weighing device.
Fig. 3 is the powder metering mechanism top view of weighing device.
Fig. 4 is pressure sensor partial enlarged drawing.
Tu5Shi powder metering mechanism metering hopper structure figure.
Fig. 6 is the sand metrological service schematic diagram of weighing device.
Tu7Shi sand metrological service metering disk schematic diagram.
Fig. 8 is feedboard schematic diagram.
In figure, 1 is gravel conveyor structure, and 2 is powder metering mechanisms, 3 Shi Sha metrological services, and 4 is sandstone storehouses, and 5 is filler bins, and 6 is rabbling mechanisms; 21 is bracing frames, and 22 is weighing hoppers, and 23 is sensor mechanism, 231 is 3 sensors, and 232 is pull bars, and 24 is conveyor screws, 25 is feed supplement spirals, and 26 is cappings, and 27 is anti-built on stilts mechanisms, 271 is stirring motors, and 272 is stirring shafts, and 273 is connecting plates, 274 is first agitator arms, 275 is second agitator arms, and 276 is support rings, and 277 are bearings and 278 is cramp bars; 31 is upper mounted plates, and 32 is bottom plates, and 33 is metering disks, and 331 is the little storehouses of some meterings, and 332 is rotating shafts of metering disk, and 34 is motors, and 341 is rotating shafts of motor, and 35 is feedboards, and 351 is charging apertures.
Detailed description of the invention
As Fig. 1, weighing device of the present invention is arranged on continous way dry powder mortar production line, has powder metering mechanism 2 and sand metrological service 3, is respectively used to carry out continuously accurate weighing to each powder and sandstone that form mortar.
This continous way dry powder mortar production line is primarily of gravel conveyor structure 1, and powder metering mechanism 2, sand metrological service 3, sandstone storehouse 4, filler bin 5, rabbling mechanism 6 forms.Wherein, sandstone enters sandstone storehouse 4 through gravel conveyor structure 1, and powder then enters filler bin 5, and Jin Guosha metrological service 3 and powder metering mechanism 2 carry out accurate weighing respectively again for both, enter rabbling mechanism 6 fully mix and blend again, complete the production process of this dry powder and mortar.
As Fig. 2, Fig. 3, Fig. 4, Fig. 5, the powder metering mechanism of weighing device of the present invention is mainly by bracing frame 21, weighing hopper 22, sensor mechanism 23, pull bar 232, and conveyor screw 24, feed supplement spiral 25 forms.Wherein weighing hopper 22 is suspended on bracing frame 21 by least two pull bars 232, and conveyor screw 24 is communicated with input port with the delivery outlet of weighing hopper 22 respectively with feed supplement spiral 25.
Powder metering mechanism is also provided with pulling force sensor 231 and PLC, sensor 231 is arranged between bracing frame 21 and weighing hopper 22 and metrical information is transferred to PLC by timing, and PLC is setting feed flow V, the powder upper weight limit value Mmax of weighing hopper and powder lower weight limit value Mmin according to the operation principle of PLC; Described correlation computations comprises: calculate the current feed flow Vd of mortar by current variable Md, current feed flow Vd calculated with comparing of setting feed flow value V, compare the result of calculating by this, control the rotating speed of conveyor screw 24, mortar is carried and keeps setting flow; Current variable Md with calculate powder upper weight limit value Mmax and comparing of powder lower weight limit value Mmin, when Md≤Mmin, feed supplement spiral 25 works, start feed supplement, until complete feed supplement during Md=Mmax, make mortar carry keep setting flow.Powder metering is exported continuously.
Weighing hopper 22 in powder metering mechanism is become with the cone barrel being connected to this cylinder bottom by cylinder, the outer circumference surface of cylinder is evenly equipped with three engaging lugs, be connected by pull bar 232 and pulling force sensor 231 between bracing frame 21 and each engaging lug on weighing hopper 22, and by pull bar, weighing hopper be suspended on bracing frame.
The upper end of the top cylinder of weighing hopper 22 is provided with capping 26, realize the accurate measurement of powder, prevent impurity to be mixed into, be arranged on powder input port also facing to feed supplement spiral 25 output in this capping 26, described delivery outlet is arranged on cone cylinder lower end and faces toward the output of conveyor screw 25.
Also be provided with anti-powder in weighing hopper and make somebody a mere figurehead mechanism, avoid the adhesion in weighing hopper of powder, built on stilts, this mechanism comprises stirring motor 271, stirring shaft 272, connecting plate 273, first agitator arm 274 and the second agitator arm 275, described stirring motor 271 is arranged on weighing hopper 22 upper end, stirring shaft 272 is connected with the rotating shaft of stirring motor 271 and makes this stirring shaft be in weighing hopper center, connecting plate is connected on stirring shaft, and some first agitator arms 274 and the second agitator arm 275 are connected on connecting plate and stirring shaft.
Stirring shaft supporting device is provided with fixing stirring shaft 272 at all 272 terminal positions of stirring, reach the object of fixing stirring shaft 272, this mechanism comprises support ring 276, bearing 277 and at least three cramp bars 278, described support ring is arranged on the center of corresponding stirring shaft end in weighing hopper, three cramp bars 278 are distributed on support ring 276 outer circumference surface and one end and are connected one end with support ring 276 and are connected with weighing hopper 22 inner chamber, and stirring shaft end is rotationally connected with support ring 276 by described bearing 277.
In described supporting device, be fixed on by stirring motor 271 in described capping 26, the center of described capping 26 is provided with hole, and stirring shaft 272 upper end being in weighing hopper center is connected with motor shaft through this hole.
Two diverse locations on stirring shaft 272 are respectively equipped with first, second agitator arm, and wherein the first agitator arm 274 is relatively on stirring shaft 272 lower surface that arranges rectangular slab symmetrically and side, two ends, in vertical-horizontal EDS maps; And second agitator arm 275 one end is vertically connected on and is arranged on stirring shaft bottom, its connecting portion is distributed on stirring shaft outer circumference surface along the hand of spiral, and the stirring that can make powder so more fully and evenly.
Connecting plate 273 is designed to vertically and is connected to the rectangular slab of stirring shaft symmetrically, and stirring shaft is symmetrical tilting in rectangular slab upper end relatively for two bracing pieces 278 in order to fixed connecting plate, and upper and lower end is connected with stirring shaft and rectangular slab respectively.
In above-mentioned powder metering mechanism, powder enters weighing hopper 22 by feed supplement spiral 25, by pulling force sensor 231 respond to input the quality of powder, and feed back to PLC control system, PLC system is compared by the powder quality Md of sensor feedback and the Mmax of limit value qualitatively of setting and lower limit Mmin, and as Md≤Mmin, feed supplement spiral 25 continues to carry out powder input, until Md=Mmax, feed supplement spiral 25 quits work.While feed supplement spiral 25 carries out powder carry, conveyor screw 24 carries out the output of powder with flow V1, the same time, PLC control system gathers automatically, feed back the instantaneous feed flow V1 of spiral, and compare with the setting flow V of PLC, as V1<V, conveyor screw accelerates, and as V1>V, conveyor screw slows down, and ensures that conveyor screw conveying capacity within the unit interval maintains steady state value V.To complete powder carry process.In powder carry process, the agitator arm in weighing hopper 22 constantly stirs, and prevents the adhesion of powder, makes somebody a mere figurehead.
As Fig. 6, Fig. 7, Fig. 8, sand metrological service 3 is primarily of metering disk 33, and the little storehouse 331 of some meterings, feedboard 35, charging aperture 351 forms.Wherein feedboard 35 is arranged on the upper end of metering disk 33, metering disk 33 is provided with the little storehouse 331 of some uniform meterings, on feedboard 35, be provided with charging aperture 351 simultaneously, charging aperture 351 position is corresponding with the little storehouse 331 of metering, and along metering disk 33 movement locus directional spreding, simultaneously in order to can the injection sandstone of maximum, charging aperture 351 be arranged to mounting hole or the scallop hole of circumferentially directional spreding.
This sand metrological service is also provided with the motor 34 controlled by PLC, the rotating shaft 341 of this motor is connected with the rotating shaft 332 of metering disk, complete in sand is measured stroke that conveying mouth moves at relative charging aperture and fill each mortar metering of measuring little storehouse and inject, thus reach sandstone and inject in the ratio of setting.
In above-mentioned sand metrological service, metering disk 33 uniform rotation, sandstone by charging aperture 351 to circumferential each measure little storehouse 331 and inject sandstone continuously, and in the injection length of setting, ensure that metering little storehouse sandstone fills, motor 34 is controlled by PLC, change the rotating speed of metering disk 33, due to the constant volume in the little storehouse of each dosage, so inject the sandstone constant volume in each little storehouse, can by measuring sandstone density, determine the sandstone weight in the little storehouse of each dosage, therefore can by controlling the rotating speed of metering disk 33, reach the object controlling measurement of sandstone weight and export, ensure that sandstone and powder export in proportion.

Claims (10)

1. a weighing device for continous way dry powder mortar production line, is characterized in that: comprise and be arranged at powder metering mechanism on dry powder mortar production line and sand metrological service respectively; Described powder metering mechanism comprises bracing frame, pull bar, weighing hopper, conveyor screw and feed supplement spiral, and described weighing hopper is suspended on bracing frame by least two pull bars, and described conveyor screw is communicated with input port with the delivery outlet of weighing hopper respectively with feed supplement spiral; Described mortar metrological service comprises metering disk and is arranged on the feedboard of this metering disk upper end, described metering disk is provided with some little storehouses of uniform metering, described feedboard is provided with charging aperture, and this gating location is corresponding with the little storehouse of metering, and along metering disk movement locus directional spreding.
2. the weighing device of a kind of continous way dry powder mortar production line according to claim 1, it is characterized in that: described weighing device also comprises pulling force sensor and PLC, described sensor setting is between bracing frame and weighing hopper and metrical information is transferred to PLC by timing, PLC carries out correlation computations according to described metrical information and setting value, and control the rotating speed of conveyor screw and the rotation of feed supplement spiral according to result of calculation, mortar is carried and keeps setting flow; Described sand metrological service also comprises the motor controlled by PLC, and the rotating shaft of this motor is connected with the rotating shaft of metering disk, completes to fill each mortar measuring little storehouse and measure injection in sand is measured stroke that conveying mouth moves at relative charging aperture.
3. the weighing device of a kind of continous way dry powder mortar production line according to claim 2, is characterized in that: described setting value is: the powder upper weight limit value Mmax of setting feed flow V, weighing hopper and powder lower weight limit value Mmin; Described correlation computations comprises: calculate the current feed flow Vd of mortar by current variable Md, current feed flow Vd calculated with comparing of setting feed flow value V, compare the result of calculating by this, control the rotating speed of conveyor screw, mortar is carried and keeps setting flow; Current variable Md with calculate powder upper weight limit value Mmax and comparing of powder lower weight limit value Mmin, when Md≤Mmin, feed supplement spiral work, start feed supplement, until complete feed supplement during Md=Mmax.
4. the weighing device of a kind of continous way dry powder mortar production line according to claim 2, it is characterized in that: described weighing hopper is become with the cone barrel being connected to this cylinder bottom by cylinder, the outer circumference surface of described cylinder is evenly equipped with three engaging lugs, be connected by pull bar and pulling force sensor between support frame as described above and each engaging lug on weighing hopper, and by pull bar, weighing hopper be suspended on bracing frame.
5. the weighing device of a kind of continous way dry powder mortar production line according to claim 4, it is characterized in that: the upper end of described weighing hopper top cylinder is provided with capping, described input port is arranged on also facing to feed supplement spiral output in this capping, and described delivery outlet is arranged on cone cylinder lower end and faces toward conveyor screw output.
6. the weighing device of a kind of continous way dry powder mortar production line according to claim 1, it is characterized in that: be provided with anti-powder in described weighing hopper and make somebody a mere figurehead mechanism, this mechanism comprises stirring motor, stirring shaft, connecting plate, the first agitator arm and the second agitator arm, described stirring motor is arranged on weighing hopper upper end, stirring shaft is connected with the rotating shaft of stirring motor and makes this stirring shaft be in weighing hopper center, connecting plate is connected on stirring shaft, and some first agitator arms and the second agitator arm are connected on connecting plate and stirring shaft; Or this mechanism comprises.
7. the weighing device of a kind of continous way dry powder mortar production line according to claim 6, it is characterized in that: in described weighing hopper, corresponding stirring shaft terminal position is provided with stirring shaft supporting device, this mechanism comprises support ring, bearing and at least three cramp bars, described support ring is arranged on the center of corresponding stirring shaft end in weighing hopper, three cramp bars are distributed on support ring outer circumference surface and one end and are connected one end with support ring and are connected with weighing hopper inner chamber, and stirring shaft end is rotationally connected by described bearing and support ring.
8. the weighing device of a kind of continous way dry powder mortar production line according to claim 8, it is characterized in that: on the lower surface that described first agitator arm arranges described rectangular slab symmetrically relative to stirring shaft and side, two ends, described second agitator arm one end is vertically connected on and is arranged on stirring shaft bottom and is distributed on stirring shaft outer circumference surface along the hand of spiral.
9. the weighing device of a kind of continous way dry powder mortar production line according to claim 8, it is characterized in that: described connecting plate is rectangular slab, this rectangular slab vertically and be connected to stirring shaft symmetrically, two bracing pieces are symmetrical tilting relative to stirring shaft in rectangular slab upper end, and upper and lower end is connected with stirring shaft and rectangular slab respectively.
10. the weighing device of a kind of continous way dry powder mortar production line according to claim 8, is characterized in that: described charging aperture is mounting hole or the scallop hole of circumferentially directional spreding.
CN201510131645.3A 2015-03-24 2015-03-24 Weighing device for continuous dry mortar production line Pending CN104647603A (en)

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Application Number Priority Date Filing Date Title
CN201510131645.3A CN104647603A (en) 2015-03-24 2015-03-24 Weighing device for continuous dry mortar production line

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040436A (en) * 2019-05-14 2019-07-23 舟山市宏基工业产品设计研究所 A kind of weight feed device of powder

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Publication number Priority date Publication date Assignee Title
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JP2009012917A (en) * 2007-07-04 2009-01-22 Sumitomo Chemical Co Ltd Method of detecting abnormality of screw feeder
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CN204585560U (en) * 2015-03-24 2015-08-26 徐祥来 The weighing device of continous way dry powder mortar production line

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
CN1272056A (en) * 1997-09-30 2000-11-01 罗伯特·博施有限公司 Device for measuring volumes of small amounts of products and for filling same in receptacles
CN2632039Y (en) * 2003-07-15 2004-08-11 宋斌 Disc material feeder for concrete mixer station
CN2918333Y (en) * 2005-12-22 2007-07-04 梅法明 Unloader for powdered or granular material
JP2009012917A (en) * 2007-07-04 2009-01-22 Sumitomo Chemical Co Ltd Method of detecting abnormality of screw feeder
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040436A (en) * 2019-05-14 2019-07-23 舟山市宏基工业产品设计研究所 A kind of weight feed device of powder

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