CN105945245A - Adjustable pipe die powder spray-blowing device - Google Patents
Adjustable pipe die powder spray-blowing device Download PDFInfo
- Publication number
- CN105945245A CN105945245A CN201610310266.5A CN201610310266A CN105945245A CN 105945245 A CN105945245 A CN 105945245A CN 201610310266 A CN201610310266 A CN 201610310266A CN 105945245 A CN105945245 A CN 105945245A
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- Prior art keywords
- pipe
- injection tube
- pipe die
- spray
- air
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses an adjustable pipe die powder spray-blowing device which is provided with a traveling trolley. An air compressor, a telescopic plate and a controller are installed on the traveling trolley. A hopper is installed at the tail end of the telescopic plate. A mixing chamber is installed at the lower end of the hopper. A spray-blowing pipe and a discharging pipe are connected to the front end and the rear end of the mixing chamber correspondingly through threads. An air inlet of the spray-blowing pipe is connected with the air compressor through a hose, and a pneumatic butterfly valve is installed on the hose. An air duct in the spray-blowing pipe is gradually decreased in the spray-blowing direction of compressed air. A conical feeding inlet is formed in the feeding end of the discharging pipe. The conical feeding inlet corresponds to an air outlet of the spray-blowing pipe, and the diameter of the conical feeding inlet is larger than that of the air outlet of the spray-blowing pipe. A bent pipe is arranged at the discharging end of the discharging pipe, and a discharging outlet of the bent pipe corresponds to the inner wall of a pipe die. The adjustable pipe die powder spray-blowing device is small in size, low in cost, convenient to operate, clean and environmentally friendly, achieves real-time control over the output amount of pipe die powder and guarantees stability of the output amount, thereby guaranteeing the forming quality of nodular cast iron pipes.
Description
Technical field
The present invention relates to ductile iron pipe inner wall mould powder winding-up process equipment, a kind of adjustable pipe die powder blowing device.
Background technology
Pipe die powder is the important additives producing ductile iron pipe, has protection pipe die, the favourable demoulding, can be effectively reduced the multiple efficacies such as degree of supercooling, the suppression formation of carbide, the pore breeding, eliminating cast tube outer surface and pin hole, nodularization, prolongation pipe die powder service life.
At present, machine not only volume is big, cost is high in the mould powder winding-up that ductile iron pipe commonly uses, and when jetting pipe die, the spray volume of pipe die powder is uneven and unadjustable, the cementite causing Surface of Nodular Cast Iron Pipe exceeds standard (more than oozing 10), defines substantial amounts of technique waste product；Meanwhile, because of the sealing problem of existing mould powder winding-up machine, when pipe die is jetted, it is easy to occurring that inverted ventilation, substantial amounts of pipe die powder spread in working space, waste is serious, also to the normal work of staff with healthy bring strong influence.There is provided for this that a kind of volume is little, low cost, it is possible to the output of regulation pipe die powder also guarantees that the stable pipe die powder blowing device of output is just particularly important.
Summary of the invention
The pipe die powder winding-up body that present invention aim to solve to be currently used in ductile iron pipe is long-pending big, easily occur during work that inverted ventilation pollutes, and the spray volume of pipe die powder is uneven and unadjustable, cause the problem that the cementite of Surface of Nodular Cast Iron Pipe exceeds standard, provide for this that a kind of volume is little, the adjustable pipe die powder blowing device of low cost.
The concrete scheme of the present invention is: a kind of adjustable pipe die powder blowing device, it is characterized in that: there is walking dolly, equipped with air compressor machine and expansion plate and controller on walking dolly, the end of expansion plate is equipped with the hopper for depositing mould powder, the lower end of hopper, equipped with mixing chamber, is held before and after mixing chamber and has been threaded connection injection tube and discharge nozzle respectively；The air inlet of described injection tube passes through hose connection air compressor machine, and equipped with Pneumatic butterfly valve on flexible pipe, the air channel in injection tube is gradually reduced along the blowing direction of pneumatics wind；The feed end of described discharge nozzle is provided with cone charging aperture, cone charging aperture is corresponding with the air outlet of injection tube, and the bore of cone charging aperture is more than the bore of injection tube air outlet, and the discharge end of discharge nozzle is provided with bending tube, and the discharging opening of bending tube is corresponding with pipe die inwall；Described controller is monitored the air pressure in air compressor machine in real time and realizes the real-time control to Pneumatic butterfly valve aperture.
Heretofore described walking dolly is fixed be connected equipped with the telescopic end of hydraulic cylinder or electric pushrod, hydraulic cylinder or electric pushrod and the back side of expansion plate；Walking dolly offers the chute agreed with mutually with expansion plate, the trapezoidal structure of cross section of chute, offer on the bottom land of chute and be easy to the mouth of stepping down that the telescopic end of hydraulic cylinder or electric pushrod stretches, and equipped with for the travel switch spacing to expansion plate on bottom land；Described controller controls the action of hydraulic cylinder or electric pushrod in real time, and when expansion plate touches travel switch, stops driving hydraulic cylinder or electric pushrod.
The present invention is delivered to the blast of pneumatics wind of injection tube 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 charging aperture bore of discharge nozzle, and the distance between the air outlet of injection tube and the conical charging aperture of discharge nozzle is equal to the bore of the air outlet of injection tube.
Volume of the present invention is little, low cost, easy to operate, clean environment firendly, overcome existing pipe die powder winding-up machine operationally, it is susceptible to inverted ventilation and pollutes and cause the problem that pipe die powder is wasted, achieve controlling in real time and ensure that stablizing of output of pipe die powder output, ensure that the Forming Quality of ductile iron pipe.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation that in the present invention, mixing chamber matches with injection tube and discharge nozzle；
Fig. 3 is the operating diagram of the present invention.
In figure: 1 walking dolly, 2 air compressor machines, 3 expansion plates, 4 controllers, 5 hoppers, 6 mixing chambers, 7 injection tubes, 8 discharge nozzles, 9 flexible pipes, 10 Pneumatic butterfly valves, 11 cone charging apertures, 12 bending tubes, 13 hydraulic cylinders or electric pushrod, 14 chutes, 15 step down mouth, 16 travel switches, 17 pipe dies, 18 support rollers.
Detailed description of the invention
See Fig. 1-3, the present invention has walking dolly 1, equipped with air compressor machine 2 and expansion plate 3 and controller 4 on walking dolly 1, the end of expansion plate 3 is equipped with the hopper 5 for depositing mould powder, the lower end of hopper 5, equipped with mixing chamber 6, is held before and after mixing chamber 6 and has been threaded connection injection tube 7 and discharge nozzle 8 respectively；The air inlet of described injection tube 7 connects air compressor machine 2 by flexible pipe 9, and equipped with Pneumatic butterfly valve 10 on flexible pipe 9, the air channel in injection tube 7 is gradually reduced along the blowing direction of pneumatics wind；The feed end of described discharge nozzle 8 is provided with cone charging aperture 11, cone charging aperture 11 is corresponding with the air outlet of injection tube 7, and the bore of cone charging aperture 11 is more than the bore of injection tube 7 air outlet, the discharge end of discharge nozzle 8 is provided with bending tube 12, and the discharging opening of bending tube 12 is corresponding with pipe die inwall；Described controller 4 is monitored the air pressure in air compressor machine 2 in real time and realizes the real-time control to Pneumatic butterfly valve 10 aperture.
Equipped with hydraulic cylinder or electric pushrod 13 in walking dolly 1 described in the present embodiment, the telescopic end of hydraulic cylinder or electric pushrod 13 is fixing with the back side of expansion plate 3 to be connected；Walking dolly 1 offers the chute 14 agreed with expansion plate 3 phase, the trapezoidal structure of cross section of chute 14, offer on the bottom land of chute 14 and be easy to the mouth 15 of stepping down that the telescopic end of hydraulic cylinder or electric pushrod 13 stretches, and equipped with for the travel switch 16 spacing to expansion plate 3 on bottom land；Described controller 4 controls hydraulic cylinder or the action of electric pushrod 13 in real time, and when expansion plate 3 touches travel switch 16, stops driving hydraulic cylinder or electric pushrod 13.
The present invention is when real work, first, is placed on support roller 18 by ductile iron pipe pipe die 17, and pipe die 17 makees spinning motion under the driving of support roller 18, deposits the pipe die powder of 18-20kg in hopper, and walking dolly is pushed into the side of pipe die the most corresponding；
Then, distance between manual regulation blowing pipe and discharge nozzle, make distance between the air outlet of injection tube and the conical charging aperture of the discharge nozzle bore equal to the air outlet of injection tube, wherein the bore of injection tube air outlet equal to discharge nozzle conical charging aperture bore 1/2；
nullThen，Start controller，Controller controls hydraulic cylinder or electric pushrod promotes expansion plate to stretch in pipe die，When expansion plate stretches out and puts in place (maximum horizontal range of the discharging opening distance walking dolly of bending tube is 1.5m),Controller detects the air pressure in air compressor machine in real time to regulate the aperture of Pneumatic butterfly valve，Make to be delivered to the blast of pneumatics wind of injection tube between 0.3-0.6Mpa from air compressor machine，The pneumatics wind now with high blast and high flow rate enters in discharge nozzle directed along the air outlet of injection tube and the conical charging aperture of discharge nozzle，Thus cause being formed negative pressure in mixing chamber，Negative pressure is typically between-0.15Mpa to-0.3Mpa，And then make to leave in pipe die pruinescence in hopper and be sucked in mixing chamber，Pipe die powder is after mixing with pneumatics wind，It is ejected to pipe die inwall from the discharging opening of discharge nozzle；After until the winding-up machine realization of pipe die powder, to pipe die, the inwall of the most a certain section completes winding-up, controller directly controls hydraulic cylinder by plug-in or electric pushrod promotes expansion plate stretch out or bounce back, thus completes to jet the continuous of pipe die other parts inwall；
Finally, after winding-up completes, controller controls expansion plate and regains, and when expansion plate touches travel switch, stops driving hydraulic cylinder or electric pushrod, and this time winding-up operation completes.
Claims (4)
1. an adjustable pipe die powder blowing device, it is characterized in that: there is walking dolly, equipped with air compressor machine and expansion plate and controller on walking dolly, the end of expansion plate is equipped with the hopper for depositing mould powder, the lower end of hopper, equipped with mixing chamber, is held before and after mixing chamber and has been threaded connection injection tube and discharge nozzle respectively；The air inlet of described injection tube passes through hose connection air compressor machine, and equipped with Pneumatic butterfly valve on flexible pipe, the air channel in injection tube is gradually reduced along the blowing direction of pneumatics wind；The feed end of described discharge nozzle is provided with cone charging aperture, cone charging aperture is corresponding with the air outlet of injection tube, and the bore of cone charging aperture is more than the bore of injection tube air outlet, and the discharge end of discharge nozzle is provided with bending tube, and the discharging opening of bending tube is corresponding with pipe die inwall；Described controller is monitored the air pressure in air compressor machine in real time and realizes the real-time control to Pneumatic butterfly valve aperture.
One the most according to claim 1 adjustable pipe die powder blowing device, is characterized in that: fix be connected equipped with the telescopic end of hydraulic cylinder or electric pushrod, hydraulic cylinder or electric pushrod and the back side of expansion plate in described walking dolly；Walking dolly offers the chute agreed with mutually with expansion plate, the trapezoidal structure of cross section of chute, offer on the bottom land of chute and be easy to the mouth of stepping down that the telescopic end of hydraulic cylinder or electric pushrod stretches, and equipped with for the travel switch spacing to expansion plate on bottom land；Described controller controls the action of hydraulic cylinder or electric pushrod in real time, and when expansion plate touches travel switch, stops driving hydraulic cylinder or electric pushrod.
One the most according to claim 1 adjustable pipe die powder blowing device, is characterized in that: be delivered to the blast of pneumatics wind of injection tube from air compressor machine between 0.3-0.6Mpa.
4. according to the one adjustable pipe die powder blowing device described in claim 1 or 2 or 3, it is characterized in that: the bore of described injection tube air outlet is equal to the bore of the air outlet of injection tube equal to the distance between the 1/2 of cone charging aperture bore, and the air outlet of injection tube and cone charging aperture.
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 true CN105945245A (en) | 2016-09-21 |
| CN105945245B CN105945245B (en) | 2018-05-01 |
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| 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 |
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| CN (1) | CN105945245B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822792A (en) * | 2019-04-02 | 2019-05-31 | 阔丹凌云汽车胶管有限公司 | Rubber special pipe 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 (8)
| 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. |
| 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 |
| 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 |
-
2016
- 2016-05-12 CN CN201610310266.5A patent/CN105945245B/en active Active
Patent Citations (9)
| 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 |
| 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 |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109822792A (en) * | 2019-04-02 | 2019-05-31 | 阔丹凌云汽车胶管有限公司 | Rubber special pipe tube drawing tool |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105945245B (en) | 2018-05-01 |
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