CN102632215B - Water-cooled metal type centrifugal cast pipe mold powder conveyor - Google Patents
Water-cooled metal type centrifugal cast pipe mold powder conveyor Download PDFInfo
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- CN102632215B CN102632215B CN201210090535.3A CN201210090535A CN102632215B CN 102632215 B CN102632215 B CN 102632215B CN 201210090535 A CN201210090535 A CN 201210090535A CN 102632215 B CN102632215 B CN 102632215B
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Abstract
The invention discloses a water-cooled metal type centrifugal cast pipe mold powder conveyor. The water-cooled metal type centrifugal cast pipe mold powder conveyor comprises a basic box (1), a powder storage hopper (2) and a powder blanking hopper (30), and the mold powder conveyor is provided with a screw rod rotary conveying mechanism and is used for driving a screw rod (23) in the screw rod rotary conveying mechanism through a hydraulic motor (12). According to the technical scheme disclosed by the invention, the labor intensity of workers is greatly reduced; the using quantity of mold powder is reduced; a molding rate index is stabilized, and waste products caused by failure of a mold powder machine can be avoided; the continuous production is ensured, and the failure affecting time is shortened; and the economic benefits are significantly improved.
Description
Technical field
The invention belongs to the technical field that metallurgical industry is produced, relate to the manufacturing process equipment of spun cast pipe, more particularly, the present invention relates to a kind of water-cooled metal mould centrifugal casting pipe die powder conveyer.
Background technology
At present, in ductile iron pipe production process, labour intensity is large, automaticity is low is an important problem of restriction ductile iron pipe development.Improve Automation of Manufacturing Process level and reduce the direction that labour intensity is development.
In water-cooled metal mould spun cast pipe production process, because technique need to add releasing agent, namely so-called pipe die powder; Although every desk centrifuge of each producer has all been equipped with mould powder conveyer, in use often there will be return wind, conveying capacity does not reach the phenomenon such as requirement, the obstruction of mould tube cell, causes occurring in production process waste product, when situation is serious, cause stopping production.
For example, in the time that pressure in blending bin produces negative pressure, the pressure of wind causes in will be along the passage blowback of mould powder screw rod to mould powder bucket and returns wind.
Again for example, the screw rod of general mould powder machine, it is helical-blade spot welding on core bar.Within 30 seconds, maximum output mould powder amount is 2.7kg, and in the time producing DN1000 pipe, 30 seconds needs additions are 4-6kg.As shown in Figure 2.
Current many cast tube factory is used the mode that manually adds of angle steel to produce in medium-and-large-sized pipe is produced.This mode of production not only worker's labour intensity is very large, and the consumption of mould powder is simultaneously very large, and production cost is increased greatly.
Summary of the invention
The invention provides a kind of water-cooled metal mould centrifugal casting pipe die powder conveyer, its objective is that replacement manually adds mould powder, improve the automatization level that centrifugal cast iron pipe is produced.
To achieve these goals, the technical scheme that the present invention takes is:
Water-cooled metal mould centrifugal casting pipe die powder conveyer provided by the present invention, comprise basic case, powder storage bucket and powder falling hopper, described mould powder conveyer is provided with screw rod rotary transfer mechanism, and by the screw rod in screw rod rotary transfer mechanism described in fluid motor-driven.
Described mould powder conveyer arranges the anti-device that returns wind in the mould powder exit of described swing arm rotary transfer mechanism, the described anti-device that returns wind is to add spring capping at the attaching nut place in mould powder exit.
The hydraulic system adoption rate valve control of described mould powder conveyer; The motor of described hydraulic motor adopts variable-frequency motor; Described proportioning valve and the walking position of main frame carry out chain.
Described screw rod is carbon steel and carries out Quenching Treatment.
Above described powder storage bucket, realize pressure balance with powder falling hopper by copper pipe.
The mould powder transmission power of described mould powder conveyer adopts nitrogen, or adopts dry pneumatics wind; Before the air outlet of mould powder machine, install triplet additional, by the stable blast 0.2-0.3MPa that is controlled at simultaneously.
The present invention adopts technique scheme, greatly reduces worker's labour intensity; Mould powder consumption reduces; Stablize ratio of briquetting index, stopped the waste product that mould powder machine fault causes; Guarantee continuous production, shortened the fault effects time.Remarkable in economical benefits improves.
Brief description of the drawings
Below the mark in the accompanying drawing of this description expressed content and figure is briefly described:
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of screw rod of the prior art;
Fig. 3 is the structural representation of the screw rod in the present invention
Fig. 4 is the schematic diagram of the pipe joint in Fig. 1.
In figure, be labeled as:
1, basic case, 2, powder storage bucket, 3, fastening bolt, 6, side cover plate, 8, connecting axle, 12, hydraulic motor, 13, shaft coupling, 14, key, 18, bearing, 19, thrust ring, 20, bearing block, 21, sealing felt collar, 22, tight fixed bolt, 23, screw rod, 24, contiguous block, 25, attaching nut, 26, rubber blanket, 27, bolt, 30, powder falling hopper, 32, bolt, 34, copper pipe, 35, transfer tube.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
As the structure of the present invention that Fig. 1 expresses, for a kind of water-cooled metal mould centrifugal casting pipe die powder conveyer, comprise basic case 1, powder storage bucket 2 and powder falling hopper 30.
Manually add mould powder in order to solve the problem existing at the current known technology described in this description background technology part and to overcome its defect, realizing to replace, improve the goal of the invention of the automatization level of centrifugal cast iron pipe production, the technical scheme that the present invention takes is:
As shown in Figure 1, water-cooled metal mould centrifugal casting pipe die powder conveyer provided by the present invention is provided with screw rod rotary transfer mechanism, and drives the screw rod 23 in described screw rod rotary transfer mechanism by hydraulic motor 12.
The present invention eliminate mould powder machine in prior art return wind locking plug, conveying capacity do not reach requirement, can not segmentation control etc. defect.Greatly reduce worker's labour intensity; The stable 2.0kg left and right that has been controlled at of mould powder amount, a ton pipe has reduced 1-1.5kg compared with manually adding mould powder; Stablize ratio of briquetting index, stopped the waste product that mould powder machine fault causes; Guarantee that continuous production shortened the fault effects time.The present invention according to produce per year 350,000 tons of calculating, preresearch estimates year benefit be about 3,000,000.
In powder storage bucket 2, add mould powder, as power, drive screw rod 23 to rotate by hydraulic motor 12 and variable-frequency motor, mould powder is transferred in powder falling hopper 30; In powder falling hopper 30, mould powder mixes with wind, and vaporific mould powder, by transfer tube 35, is transferred to pipe die inwall.Not only solve the problem that often occurs returning wind, also solved mould powder conveying capacity and do not reached the problem of requirement simultaneously.
Described powder storage bucket 2 is arranged on described basic case 1 by fastening bolt 3, the side installation side cover plate 6 of described basic case 1.
Hydraulic motor 12 is connected with connecting axle 8 by shaft coupling 13, key 14; Connecting axle 8 is connected with described screw rod 23 by tight fixed bolt 22.Described connecting axle 8 is arranged on bearing block 20 by bearing 18.Described bearing 18 carries out axial location by thrust ring 19; Described bearing block 20 is fixed on basic case 1.The axis hole of described bearing block 20 adopts sealing felt collar 21 to seal.
The pipeline of described screw rod rotary transfer mechanism, is connected with powder falling hopper 30 by contiguous block 24.And undertaken fasteningly by attaching nut 25, carry out damping and sealing by rubber blanket 26.
Transfer tube 35 is fixedly mounted on the lower end of powder falling hopper 30.
Described powder falling hopper 30 is fixed on basic case 1 by bolt 27.
Described powder falling hopper 30 has also been installed bolt 32, and is undertaken fastening by nut and rubber blanket.
As shown in Figure 4, for the pipe joint structure schematic diagram of copper pipe 34 is installed on powder falling hopper 30.
Described has unique anti-wind apparatus that returns from mould powder conveyer:
Described mould powder conveyer arranges the anti-device that returns wind in the mould powder exit of described swing arm rotary transfer mechanism, the described anti-device that returns wind is to add spring capping at attaching nut 25 places in mould powder exit.Increase the degree of packing of mould powder in screw rod 23, also play the effect that prevents that blast from returning simultaneously.
Designed the anti-device that returns wind at depanning powder mouth, the spring capping exporting by mould powder closely cooperates, and can stop to return the impact that wind causes completely.
The hydraulic system adoption rate valve control of described mould powder conveyer; The motor of described hydraulic motor 12 adopts variable-frequency motor; Described proportioning valve and the walking position of main frame carry out chain.
The present invention adopts hydraulic motor and variable-frequency motor as the power transmitting, drive screw rod rotation that mould powder is transferred in blending bin and pneumatics wind (preferably using nitrogen), mould powder is transported to pipe die inwall by the pressure of wind through the transfer tube of chute bottom.
The Hydraulic Power Transmission System usage ratio valve of mould powder conveyer, motor adopts variable-frequency motor as power, carries out chainly with the walking position of main frame, can realize segmentation control.Carry out cloth according to the size of pipe die diverse location mould powder amount demand.
So-called segmentation control, carry out cloth according to the size of pipe die diverse location mould powder amount demand exactly, in ductile iron pipe technique, the bellmouth of pipe die and socket mould powder demand are larger than pipe shaft, make at present the mode of adding by hand realize the larger problem of existence, but can head it off by segmentation control.
Hydraulic motor usage ratio valve, passing ratio plate is realized and main frame interlock, realizes segmentation control; Or use variable-frequency motor, realize segmentation control by frequency converter and main frame interlock.
Described screw rod 23 is for carbon steel and carry out Quenching Treatment.
Diameter and the pitch of the screw rod 23 to mould powder conveyer are calculated and are tested, guarantee the conveying capacity of mould powder machine to various casts, screw rod 23 is carried out to special Quenching Treatment simultaneously, ensured mould powder transmission quantity and extended screw rod service time, extended the service life of screw rod.
As shown in Figure 3, be 10-12kg by calculating 30 seconds maximum outputs of this screw rod, meet technological requirement completely.
Above powder storage bucket 2, install pressure equaliser additional with powder falling hopper 30, that is: above described powder storage bucket 2, realize pressure balance with powder falling hopper 30 by copper pipe 34.Realizing pressure balance by copper pipe 34, is also to stop to return wind action.
Add spring capping device at the discharging opening that easily has mould powder machine screw rod, added pressure equaliser simultaneously, effectively suppressed the appearance of most common failure.
The mould powder transmission power of described mould powder conveyer adopts nitrogen, or adopts dry pneumatics wind; Before the air outlet of mould powder machine, install triplet additional, by the stable blast 0.2-0.3MPa that is controlled at simultaneously.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (1)
1. a water-cooled metal mould centrifugal casting pipe die powder conveyer, comprises basic case (1), powder storage bucket (2) and powder falling hopper (30);
Described mould powder conveyer is provided with screw rod rotary transfer mechanism, and drives the screw rod (23) in described screw rod rotary transfer mechanism by hydraulic motor (12);
Described mould powder conveyer arranges the anti-device that returns wind in the mould powder exit of described swing arm rotary transfer mechanism, the described anti-device that returns wind is to locate to add spring capping the attaching nut (25) in mould powder exit;
It is characterized in that:
The pipeline of described screw rod rotary transfer mechanism, is connected with powder falling hopper (30) by contiguous block (24); Undertaken fasteningly by attaching nut (25), carry out damping and sealing by rubber blanket (26);
Transfer tube (35) is fixedly mounted on the lower end of powder falling hopper (30);
Described powder falling hopper (30) is fixed on basic case (1) by bolt (27);
Described powder falling hopper (30) has also been installed bolt (32), and is undertaken fastening by nut and rubber blanket;
Hydraulic motor (12) is connected with connecting axle (8) by shaft coupling (13), key (14); Connecting axle (8) is connected with described screw rod (23) by tight fixed bolt (22);
Described connecting axle (8) is arranged on bearing block (20) by bearing (18);
Described bearing (18) carries out axial location by thrust ring (19), and is fixed on basic case (1) by bearing block (20); The axis hole of described bearing block (20) adopts sealing felt collar (21) to seal;
The hydraulic system adoption rate valve control of described mould powder conveyer;
Described proportioning valve and the walking position of main frame carry out chain;
The motor of described hydraulic motor (12) adopts variable-frequency motor;
Described screw rod (23) is for carbon steel and carry out Quenching Treatment;
Top and powder falling hopper (30) at described powder storage bucket (2) are realized pressure balance by copper pipe (34);
It is upper that described powder storage bucket (2) is arranged on described basic case (1) by fastening bolt (3), the side installation side cover plate (6) of described basic case (1);
The mould powder transmission power of described mould powder conveyer adopts nitrogen, or adopts dry pneumatics wind; Before the air outlet of mould powder machine, install triplet additional, by the stable blast 0.2-0.3MPa that is controlled at simultaneously;
The working method of described mould powder conveyer is:
In powder storage bucket (2), add mould powder, as power, drive screw rod (23) rotation by hydraulic motor (12) and variable-frequency motor, mould powder is transferred in powder falling hopper (30); In powder falling hopper (30), mould powder mixes with wind, and vaporific mould powder, by transfer tube (35), is transferred to pipe die inwall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090535.3A CN102632215B (en) | 2012-03-30 | 2012-03-30 | Water-cooled metal type centrifugal cast pipe mold powder conveyor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210090535.3A CN102632215B (en) | 2012-03-30 | 2012-03-30 | Water-cooled metal type centrifugal cast pipe mold powder conveyor |
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| CN102632215A CN102632215A (en) | 2012-08-15 |
| CN102632215B true CN102632215B (en) | 2014-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312509A (en) * | 2015-09-30 | 2016-02-10 | 芜湖新兴铸管有限责任公司 | Working method of pipe powder spraying machine |
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| CN104826878B (en) * | 2015-05-08 | 2016-11-23 | 鲁东大学 | A kind of pierced shell spreads graphite device automatically |
| CN109261926A (en) * | 2018-11-23 | 2019-01-25 | 芜湖新兴铸管有限责任公司 | Cast tube centrifuge tube drawing pliers encoder and proportioning valve failure automatic protecting method |
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| CN201815641U (en) * | 2010-09-03 | 2011-05-04 | 新兴铸管股份有限公司 | Automatic powder sprayer |
| CN102319878A (en) * | 2011-08-05 | 2012-01-18 | 包头联方高新技术有限责任公司 | Billet continuous casting covering slag adding apparatus |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4904285A (en) * | 1987-07-29 | 1990-02-27 | Mitsubishi Kasei Corporation | Deaerator for particulates |
| CN2230307Y (en) * | 1995-11-09 | 1996-07-03 | 苏新页 | Screw-type mass-loading-unloading machine |
| CN2313689Y (en) * | 1997-12-30 | 1999-04-14 | 新兴铸管(集团)有限责任公司 | Water cooling centrifugal pipe caster |
| CN2661644Y (en) * | 2003-09-29 | 2004-12-08 | 石家庄钢铁股份有限公司 | Powdery material metering screw conveyer |
| CN201815641U (en) * | 2010-09-03 | 2011-05-04 | 新兴铸管股份有限公司 | Automatic powder sprayer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312509A (en) * | 2015-09-30 | 2016-02-10 | 芜湖新兴铸管有限责任公司 | Working method of pipe powder spraying machine |
| CN105312509B (en) * | 2015-09-30 | 2017-12-22 | 芜湖新兴铸管有限责任公司 | A kind of method of work of pipe die powder spraying machine |
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| CN102632215A (en) | 2012-08-15 |
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