CN103056971B - High-precision additive metering screw conveyor - Google Patents

High-precision additive metering screw conveyor Download PDF

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Publication number
CN103056971B
CN103056971B CN201310014689.9A CN201310014689A CN103056971B CN 103056971 B CN103056971 B CN 103056971B CN 201310014689 A CN201310014689 A CN 201310014689A CN 103056971 B CN103056971 B CN 103056971B
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CN
China
Prior art keywords
screw conveyor
screw machine
diameter
cutter hub
puddler
Prior art date
Application number
CN201310014689.9A
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Chinese (zh)
Other versions
CN103056971A (en
Inventor
王日东
代若奇
孙家威
李欣璐
刘嘉斌
Original Assignee
辽宁海诺建设机械集团有限公司
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Priority to CN201310014689.9A priority Critical patent/CN103056971B/en
Publication of CN103056971A publication Critical patent/CN103056971A/en
Application granted granted Critical
Publication of CN103056971B publication Critical patent/CN103056971B/en

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Abstract

The invention relates to a high-precision additive metering screw conveyor comprising a screw conveyor. Cutter bodies are arranged on a spiral shaft at a feeding opening of the screw conveyor; stirring rods are arranged on the spiral shaft close to a discharging opening of the screw conveyor; the rotation diameter DN2 of each cutter body is more than twice the diameter DN1 of a spiral blade; and the rotation diameter DN3 of each stirring rod is more than the diameter DN1 of the spiral blade and is less than the internal diameter of a spiral pipe. The high-precision additive metering screw conveyor provided by the invention has the advantages that the screw conveyor is uniform in feeding and discharging, and the impact on a metering scale is reduced by virtue of the cutter bodies at the feeding opening of the screw conveyor and the stirring rods at the discharging opening of the screw conveyor, so that the additive metering precision is greatly improved, and the property stability of finished mortar can be improved.

Description

A kind of high accuracy additive metering screw machine

Technical field

The present invention relates to a kind of dry mortar mixing plant additive metering screw machine, particularly relate to a kind of high accuracy additive metering screw machine.

Background technology

In dry mortar mixing plant industry, although the ratio of additive shared by mortar product is less, but very large to the performance impact of its mortar product, and the cost compare of additive is high, so require that the measuring accuracy of additive is just high, for extraordinary mortar, measuring accuracy requires just higher.At present, its measuring accuracy of additive metering screw machine of employing can only reach 1%, mixes variable-frequency motor, also can only reach about 0.5%, so the performance of mortar product is very unstable.

Summary of the invention

For overcoming the deficiencies in the prior art, the object of this invention is to provide a kind of high accuracy additive metering screw machine, improving measuring accuracy, making mortar product stable performance.

For achieving the above object, the present invention is achieved through the following technical solutions:

A kind of high accuracy additive metering screw machine, comprises screw machine, the helical axis at screw machine charging aperture position is provided with cutter hub, and the helical axis of screw machine close to discharging opening position arranges puddler; The tactical diameter DN2 of described cutter hub is greater than 2 times of helical blade diameter DN1; Described puddler tactical diameter DN3 is greater than helical blade diameter DN1, is less than helix tube internal diameter.

Described cutter hub is eight, and the backpitch line direction along helical blade distributes in four pitch.

Described cutter hub is L shape structure.

Described puddler is divided into two groups, and often organize four puddlers, be evenly distributed in the cross section of helical axis, two groups of puddler axial spacings are between 1/2 ~ 1/4 pitch, and two groups of puddlers cross each other into miter angle at axis projection.

Compared with prior art, the invention has the beneficial effects as follows:

Utilize the cutter hub of screw machine charging aperture and the puddler of discharging opening, make the charging of its screw machine, discharging evenly, reduce the impact to weighing balance, thus the measuring accuracy of additive is greatly improved, the stability of mortar product improves.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is partial enlarged drawing of the present invention.

Fig. 3 is the partial sectional view of Fig. 1.

Fig. 4 is the partial sectional view of Fig. 1.

Fig. 5 is the partial sectional view of Fig. 1.

In figure: 1-weighing balance 2-screw machine 3-cutter hub 4-charging aperture 5-additive bin 6-puddler 7-helix tube 8-helical blade 9-helical axis.

Detailed description of the invention

Below in conjunction with Figure of description, the present invention is described in detail, but it should be noted that enforcement of the present invention is not limited to following embodiment.

See Fig. 1-Fig. 5, a kind of high accuracy additive metering screw machine, comprises screw machine 2, the helical axis 9 at screw machine 2 charging aperture 4 position is provided with cutter hub, the helical axis 9 of screw machine 2 close to discharging opening position arranges puddler 6; The tactical diameter DN2 of described cutter hub 3 is greater than 2 times of helical blade 8 diameter DN1, and peripheral speed is very fast, can break up the easily agglomerating additive material of charging aperture 4 inside, makes it uniformly to screw machine 2 feed; Described puddler 6 tactical diameter DN3 is greater than helical blade 8 diameter DN1, is less than helix tube 7 internal diameter, and puddler 6 can make the material stirring delivered near discharging opening by helical blade 8 loose, and discharging is even, reduces the impact to weighing balance 1.

Described cutter hub 3 is eight, and the backpitch line direction along helical blade 8 is uniformly distributed in four pitch.

Described cutter hub 3 is L shape structure.

Described puddler 6 is divided into two groups, and often organize four puddlers 6, be evenly distributed in the cross section of helical axis 9, two groups of puddler 6 axial spacings are between 1/2 ~ 1/4 pitch, and two groups of puddlers 6 cross each other into miter angle at axis projection.

During use, material is from additive bin 5 when screw machine 2 charging aperture 4, and first easily agglomerating additive material is broken up by cutter hub 3, then all spares to screw machine 2 feed; At screw machine 2 close to discharging opening, helical blade is delivered to the looser of additive material stirring near discharging opening by two groups of puddlers 6, makes its discharging even, smaller to the impact of weighing balance 1.The present invention is equipped with variable-frequency motor again, by the PLC of mixing plant control centre, according to the additional dosage entering weighing balance 1, VFC is carried out to screw machine 2, along with the increase entering weighing balance 1 additive part by weight, the motor speed of screw machine 2 declines, when weighing balance 1 reaches setting value, the motor of screw machine 2 stops, complete the batching of one-period, can realize additive measuring accuracy and reach 0.2%, absolute precision can reach 20g, thus the stability of mortar product is very significantly improved.

The present invention utilizes the cutter hub of screw machine charging aperture and the puddler of discharging opening, and make the charging of its screw machine, discharging evenly, reduce the impact to weighing balance, thus the measuring accuracy of additive is greatly improved, the stability of mortar product improves.

Claims (1)

1. a high accuracy additive metering screw machine, comprises screw machine, it is characterized in that, the helical axis at screw machine charging aperture position is provided with cutter hub, and the helical axis of screw machine close to discharging opening position arranges puddler; The tactical diameter DN2 of described cutter hub is greater than 2 times of helical blade diameter DN1; Described puddler tactical diameter DN3 is greater than helical blade diameter DN1, is less than helix tube internal diameter; Described cutter hub is eight, and the backpitch line direction along helical blade is uniformly distributed in four pitch; Described cutter hub is L shape structure; Described puddler is divided into two groups, and often organize four puddlers, be evenly distributed in the cross section of helical axis, two groups of puddler axial spacings are between 1/2 ~ 1/4 pitch, and two groups of puddlers cross each other into miter angle at axis projection.
CN201310014689.9A 2013-01-16 2013-01-16 High-precision additive metering screw conveyor CN103056971B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310014689.9A CN103056971B (en) 2013-01-16 2013-01-16 High-precision additive metering screw conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310014689.9A CN103056971B (en) 2013-01-16 2013-01-16 High-precision additive metering screw conveyor

Publications (2)

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CN103056971A CN103056971A (en) 2013-04-24
CN103056971B true CN103056971B (en) 2015-02-18

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Family Applications (1)

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CN201310014689.9A CN103056971B (en) 2013-01-16 2013-01-16 High-precision additive metering screw conveyor

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213349A1 (en) * 1981-04-13 1983-01-05 Sugiue Engineering K K Apparatus for ready mix concrete mix or the like. at the construction site
CN2534006Y (en) * 2001-12-18 2003-02-05 福建南方路面机械有限公司 Continuous weighing metering stabilized soil plantmix equipment
CN2765756Y (en) * 2005-03-23 2006-03-22 南京天印专用汽车有限公司 Fixed form continuous agitator
JP2006224563A (en) * 2005-02-21 2006-08-31 Ngk Insulators Ltd Screw for extruder and screw type extruder using the screw
CN201046859Y (en) * 2007-06-12 2008-04-16 中国铝业股份有限公司 Mini-type quantitative screw feeding machine with agitating device
CN201520007U (en) * 2009-09-24 2010-07-07 嘉兴市天龙机械设备有限公司 Continuous single-shaft horizontal stirrer
CN102248588A (en) * 2011-08-08 2011-11-23 张经辉 Energy-saving vacuum brick making machine
CN203171840U (en) * 2013-01-16 2013-09-04 辽宁海诺建设机械集团有限公司 High precision additive measuring screw machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213349A1 (en) * 1981-04-13 1983-01-05 Sugiue Engineering K K Apparatus for ready mix concrete mix or the like. at the construction site
CN2534006Y (en) * 2001-12-18 2003-02-05 福建南方路面机械有限公司 Continuous weighing metering stabilized soil plantmix equipment
JP2006224563A (en) * 2005-02-21 2006-08-31 Ngk Insulators Ltd Screw for extruder and screw type extruder using the screw
CN2765756Y (en) * 2005-03-23 2006-03-22 南京天印专用汽车有限公司 Fixed form continuous agitator
CN201046859Y (en) * 2007-06-12 2008-04-16 中国铝业股份有限公司 Mini-type quantitative screw feeding machine with agitating device
CN201520007U (en) * 2009-09-24 2010-07-07 嘉兴市天龙机械设备有限公司 Continuous single-shaft horizontal stirrer
CN102248588A (en) * 2011-08-08 2011-11-23 张经辉 Energy-saving vacuum brick making machine
CN203171840U (en) * 2013-01-16 2013-09-04 辽宁海诺建设机械集团有限公司 High precision additive measuring screw machine

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