CN105945245B - A kind of adjustable pipe die powder blowing device - Google Patents
A kind of adjustable pipe die powder blowing device Download PDFInfo
- Publication number
- CN105945245B CN105945245B CN201610310266.5A CN201610310266A CN105945245B CN 105945245 B CN105945245 B CN 105945245B CN 201610310266 A CN201610310266 A CN 201610310266A CN 105945245 B CN105945245 B CN 105945245B
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- CN
- China
- Prior art keywords
- injection tube
- pipe die
- expansion plate
- feed inlet
- bore
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
Abstract
The invention discloses a kind of adjustable pipe die powder blowing device, with walking dolly, air compressor machine and expansion plate and controller are housed on walking dolly, the end of expansion plate is equipped with hopper, the lower end of hopper is equipped with mixing chamber, and the front and back end of mixing chamber has been connected through a screw thread injection tube and discharge nozzle respectively；The air inlet of injection tube connects air compressor machine by hose, and Pneumatic butterfly valve is housed on hose, and the air passage in injection tube is gradually reduced along the blowing direction of pneumatics wind；The feed end of the discharge nozzle is equipped with conical feed inlet, conical feed inlet is corresponding with the air outlet of injection tube, and the bore of conical feed inlet is more than the bore of injection tube air outlet, the discharge end of discharge nozzle is equipped with bending tube, and the discharge port of bending tube is corresponding with pipe die inner wall；The present invention is small, cost is low, easy to operate, clean environment firendly, realizes the controlling in real time and ensure that the stabilization of output quantity of pipe die powder output quantity, ensures that the Forming Quality of ductile iron pipe.
Description
Technical field
The present invention relates to ductile iron pipe inner wall mould powder to be blown process equipment, especially a kind of adjustable pipe die powder injection dress
Put.
Background technology
Pipe die powder is the important additives for producing ductile iron pipe, has protection pipe die, the favourable demoulding, can be effectively reduced
Degree of supercooling, the formation for suppressing carbide, the stomata for breeding, eliminating cast tube outer surface and pin hole, nodularization, extension pipe die powder use the longevity
The multiple efficacies such as life.
At present, not only volume is big, of high cost for the mould powder injection machine that ductile iron pipe generally uses, but also is carried out to pipe die
During injection, the spray volume of pipe die powder is uneven and unadjustable, causes the cementite of Surface of Nodular Cast Iron Pipe exceeded（More than oozing
10）, form substantial amounts of technique waste product；At the same time, because of the sealing problem of existing mould powder injection machine, sprayed to pipe die
When blowing, it is easy to inverted ventilation occur, substantial amounts of pipe die powder spreads in workplace, wastes seriously, also to the normal work of staff
Make and health brings strong influence.Offer one kind is small for this, cost is low, can adjust the output quantity of pipe die powder simultaneously
Ensure that the pipe die powder blowing device that output quantity is stablized just is particularly important.
The content of the invention
Pipe die powder injection body product present invention aim to solve to be currently used in ductile iron pipe is big, and when work holds
Easily there is inverted ventilation pollution, and the spray volume of pipe die powder is uneven and unadjustable, causes the cementite of Surface of Nodular Cast Iron Pipe
The problem of exceeded, provide a kind of adjustable pipe die powder blowing device small, cost is low for this.
The present invention concrete scheme be：A kind of adjustable pipe die powder blowing device, it is characterized in that：With walking dolly,
Air compressor machine and expansion plate and controller are housed, the end of expansion plate is equipped with the hopper for being used for storing mould powder, material on walking dolly
The lower end of bucket is equipped with mixing chamber, and the front and back end of mixing chamber has been connected through a screw thread injection tube and discharge nozzle respectively；The injection tube
Air inlet air compressor machine is connected by hose, and Pneumatic butterfly valve is housed on hose, the air passage in injection tube is along pneumatics wind
Blowing direction is gradually reduced；The feed end of the discharge nozzle is equipped with conical feed inlet, and conical feed inlet and injection tube go out
Air port is corresponding, and the bore of conical feed inlet is more than the bore of injection tube air outlet, and the discharge end of discharge nozzle is equipped with folding
Bend pipe, the discharge port of bending tube are corresponding with pipe die inner wall；The controller monitors the air pressure in air compressor machine and realization pair in real time
The real-time control of Pneumatic butterfly valve aperture.
Hydraulic cylinder or electric pushrod be housed in heretofore described walking dolly, the telescopic end of hydraulic cylinder or electric pushrod with
The back side of expansion plate is fixedly connected；The sliding slot mutually agreed with expansion plate is offered on walking dolly, the cross section of sliding slot is in ladder
Shape structure, offers the resigning mouthful stretched easy to the telescopic end of hydraulic cylinder or electric pushrod on the slot bottom of sliding slot, and on slot bottom
Equipped with for the travel switch spacing to expansion plate；The controller controls the action of hydraulic cylinder or electric pushrod in real time, and
When expansion plate touches travel switch, stop driving hydraulic cylinder or electric pushrod.
The wind pressure of the pneumatics wind of injection tube is delivered in the present invention from air compressor machine between 0.3-0.6Mpa.
The bore of heretofore described injection tube air outlet is equal to the 1/2 of the conical feed inlet bore of discharge nozzle, and
The distance between the air outlet of injection tube and the conical feed inlet of discharge nozzle are equal to the bore of the air outlet of injection tube.
The present invention is small, cost is low, easy to operate, clean environment firendly, overcomes existing pipe die powder injection machine and is working
When, the problem of inverted ventilation pollutes and causes pipe die powder to waste easily occurs, realizes controlling and ensure in real time for pipe die powder output quantity
The stabilization of output quantity, ensures that the Forming Quality of ductile iron pipe.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is mixing chamber and injection tube and the matched structure diagram of discharge nozzle in the present invention；
Fig. 3 is the operating diagram of the present invention.
In figure：1-walking dolly, 2-air compressor machine, 3-expansion plate, 4-controller, 5-hopper, 6-mixing chamber, 7-
Injection tube, 8-discharge nozzle, 9-hose, 10-Pneumatic butterfly valve, 11-cone feed inlet, 12-bending tube, 13-hydraulic cylinder
Or electric pushrod, 14-sliding slot, 15-resigning mouthful, 16-travel switch, 17-pipe die, 18-support roller.
Embodiment
Referring to Fig. 1-3, the present invention has walking dolly 1, equipped with air compressor machine 2 and expansion plate 3 and control on walking dolly 1
Device 4 processed, the end of expansion plate 3 are equipped with the hopper 5 for being used for storing mould powder, and the lower end of hopper 5 is equipped with mixing chamber 6, before mixing chamber 6
Rear end has been connected through a screw thread injection tube 7 and discharge nozzle 8 respectively；The air inlet of the injection tube 7 connects air compressor machine by hose 9
2, and Pneumatic butterfly valve 10 is housed on hose 9, the air passage in injection tube 7 is gradually reduced along the blowing direction of pneumatics wind；It is described
The feed end of discharge nozzle 8 is equipped with conical feed inlet 11, and conical feed inlet 11 is corresponding with the air outlet of injection tube 7, and
The bore of conical feed inlet 11 is more than the bore of 7 air outlet of injection tube, and the discharge end of discharge nozzle 8 is equipped with bending tube 12, bending
The discharge port of pipe 12 is corresponding with pipe die inner wall；The controller 4 monitors the air pressure in air compressor machine 2 and realizes to pneumatic butterfly in real time
The real-time control of 10 aperture of valve.
Hydraulic cylinder or electric pushrod 13 be housed in walking dolly 1 described in the present embodiment, hydraulic cylinder or electric pushrod 13
Telescopic end is fixedly connected with the back side of expansion plate 3；The sliding slot 14 agreed with 3 phase of expansion plate, sliding slot are offered on walking dolly 1
The 14 trapezoidal structure in cross section, what the telescopic end offered on the slot bottom of sliding slot 14 easy to hydraulic cylinder or electric pushrod 13 stretched
Resigning mouthful 15, and be equipped with slot bottom and be used for the travel switch 16 spacing to expansion plate 3；The controller 4 controls hydraulic pressure in real time
The action of cylinder or electric pushrod 13, and when expansion plate 3 touches travel switch 16, stop driving hydraulic cylinder or electric pushrod
13。
The present invention first, ductile iron pipe pipe die 17 is placed on support roller 18, pipe die 17 is in support roller in actual work
Make spinning motion under 18 driving, the pipe die powder of 18-20kg is stored in hopper, walking dolly is pushed into side and the edge of pipe die
It is axial corresponding；
Then, the distance between manual regulation blowing pipe and discharge nozzle so that the air outlet of injection tube and the circle of discharge nozzle
The distance between taper feed inlet is equal to the bore of the air outlet of injection tube, and the wherein bore of injection tube air outlet is equal to discharge nozzle
Conical feed inlet bore 1/2；
Then, controller is started, controller control hydraulic cylinder or electric pushrod promote expansion plate to stretch in pipe die, wait to stretch
When contracting plate stretches out in place（The discharge port of bending tube is 1.5m apart from the maximum horizontal range of walking dolly）, controller detects in real time
Air pressure in air compressor machine is to adjust the aperture of Pneumatic butterfly valve so that the wind pressure that the pneumatics wind of injection tube is delivered to from air compressor machine exists
Between 0.3-0.6Mpa, the air outlet and discharge nozzle of pneumatics wind at this time with high wind pressure and high flow rate directed along injection tube
Conical feed inlet enters in discharge nozzle, so as to cause to form negative pressure in mixing chamber, negative pressure generally -0.15Mpa to -
Between 0.3Mpa, be sucked into so that being stored in pipe die powder in hopper in mixing chamber, pipe die powder after being mixed with pneumatics wind,
Pipe die inner wall is ejected to from the discharge port of discharge nozzle；Treat that pipe die powder injection machine is realized and spray is completed to the inner wall of wherein a certain section of pipe die
After blowing, controller directly controls hydraulic cylinder by plug-in or electric pushrod promotes expansion plate to stretch out or bounce back, so as to complete
Continuous injection to pipe die other parts inner wall；
Finally, wait after the completion of being blown, controller control expansion plate is withdrawn, and when expansion plate touches travel switch, is stopped
Driving hydraulic cylinder or electric pushrod, are this time blown operation and complete.
Claims (3)
1. a kind of adjustable pipe die powder blowing device, it is characterized in that：With walking dolly, on walking dolly equipped with air compressor machine and
Expansion plate and controller, the end of expansion plate are equipped with the hopper for being used for storing mould powder, and the lower end of hopper is equipped with mixing chamber, mixes
The front and back end of room has been connected through a screw thread injection tube and discharge nozzle respectively；The air inlet of the injection tube connects pneumatics by hose
Machine, and Pneumatic butterfly valve is housed on hose, the air passage in injection tube is gradually reduced along the blowing direction of pneumatics wind；The discharging
The feed end of pipe is equipped with conical feed inlet, and conical feed inlet is corresponding with the air outlet of injection tube, and cone charging
The bore of mouth is more than the bore of injection tube air outlet, and the discharge end of discharge nozzle is equipped with bending tube, the discharge port and pipe die of bending tube
Inner wall is corresponding；The controller monitors the air pressure in air compressor machine and realizes the real-time control to Pneumatic butterfly valve aperture in real time；Go out
The conical feed inlet of expects pipe front end gradually increases along pipe die powder blowing direction bore；The mouth of the injection tube air outlet
Footpath is equal to the 1/2 of conical feed inlet bore, and the distance between the air outlet of injection tube and conical feed inlet are equal to spray
The bore of the air outlet of blowpipe.
2. a kind of adjustable pipe die powder blowing device according to claim 1, it is characterized in that：It is equipped with the walking dolly
The telescopic end of hydraulic cylinder or electric pushrod, hydraulic cylinder or electric pushrod is fixedly connected with the back side of expansion plate；On walking dolly
Offer the sliding slot mutually agreed with expansion plate, the trapezoidal structure in cross section of sliding slot, offers easy to hydraulic pressure on the slot bottom of sliding slot
The resigning mouthful that the telescopic end of cylinder or electric pushrod stretches, and be equipped with slot bottom and be used for the travel switch spacing to expansion plate；Institute
The action that controller controls hydraulic cylinder or electric pushrod in real time is stated, and when expansion plate touches travel switch, stops driving liquid
Cylinder pressure or electric pushrod.
3. a kind of adjustable pipe die powder blowing device according to claim 1, it is characterized in that：Injection is delivered to from air compressor machine
The wind pressure of the pneumatics wind of pipe is between 0.3-0.6Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310266.5A CN105945245B (en) | 2016-05-12 | 2016-05-12 | A kind of adjustable pipe die powder blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310266.5A CN105945245B (en) | 2016-05-12 | 2016-05-12 | A kind of adjustable pipe die powder blowing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105945245A CN105945245A (en) | 2016-09-21 |
| CN105945245B true CN105945245B (en) | 2018-05-01 |
Family
ID=56911420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610310266.5A Active CN105945245B (en) | 2016-05-12 | 2016-05-12 | A kind of adjustable pipe die powder blowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105945245B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822792B (en) * | 2019-04-02 | 2023-10-20 | 阔丹凌云汽车胶管有限公司 | Rubber special-shaped tube drawing tool |
| CN115418612A (en) * | 2022-09-23 | 2022-12-02 | 研博智创任丘科技有限公司 | Powder coating stores up powder and leaks powder device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1971376A (en) * | 1932-10-29 | 1934-08-28 | United States Pipe Foundry | Apparatus for coating centrifugal pipe molds |
| DE1919978U (en) * | 1965-04-17 | 1965-07-15 | Siemens Ag | POWDER SUCTION DEVICE. |
| CN2160481Y (en) * | 1993-07-16 | 1994-04-06 | 华中理工大学 | Centrifugal coating spraying device for casting |
| CN2616514Y (en) * | 2002-12-31 | 2004-05-19 | 中国石化集团齐鲁石油化工公司 | Powder material conveying apparatus |
| CN1513744A (en) * | 2002-12-31 | 2004-07-21 | 中国科学院广州能源研究所 | Regulatable air controlled powder delivering device |
| CN205732857U (en) * | 2016-05-12 | 2016-11-30 | 黄石新兴管业有限公司 | A kind of adjustable pipe die powder blowing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535049Y2 (en) * | 1974-09-18 | 1978-02-08 | ||
| JPS586752A (en) * | 1981-07-06 | 1983-01-14 | Kubota Ltd | Coating method for coating agent on metallic mold for centrifugal casting |
-
2016
- 2016-05-12 CN CN201610310266.5A patent/CN105945245B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1971376A (en) * | 1932-10-29 | 1934-08-28 | United States Pipe Foundry | Apparatus for coating centrifugal pipe molds |
| DE1919978U (en) * | 1965-04-17 | 1965-07-15 | Siemens Ag | POWDER SUCTION DEVICE. |
| US3442454A (en) * | 1965-04-17 | 1969-05-06 | Siemens Ag | Power suction device |
| CN2160481Y (en) * | 1993-07-16 | 1994-04-06 | 华中理工大学 | Centrifugal coating spraying device for casting |
| CN2616514Y (en) * | 2002-12-31 | 2004-05-19 | 中国石化集团齐鲁石油化工公司 | Powder material conveying apparatus |
| CN1513744A (en) * | 2002-12-31 | 2004-07-21 | 中国科学院广州能源研究所 | Regulatable air controlled powder delivering device |
| CN205732857U (en) * | 2016-05-12 | 2016-11-30 | 黄石新兴管业有限公司 | A kind of adjustable pipe die powder blowing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105945245A (en) | 2016-09-21 |
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