CN110640089A - Automatic purging machine for exhaust riser of static pressure molding line - Google Patents
Automatic purging machine for exhaust riser of static pressure molding line Download PDFInfo
- Publication number
- CN110640089A CN110640089A CN201910955791.6A CN201910955791A CN110640089A CN 110640089 A CN110640089 A CN 110640089A CN 201910955791 A CN201910955791 A CN 201910955791A CN 110640089 A CN110640089 A CN 110640089A
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- 238000010926 purge Methods 0.000 title claims abstract description 50
- 230000003068 static effect Effects 0.000 title claims abstract description 30
- 238000000465 moulding Methods 0.000 title claims abstract description 23
- 238000007664 blowing Methods 0.000 claims abstract description 103
- 239000004576 sand Substances 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 244000035744 Hura crepitans Species 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000007667 floating Methods 0.000 abstract description 12
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 8
- 230000002950 deficient Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Abstract
The invention relates to an automatic purging machine for an exhaust riser of a static pressure molding line, which is arranged on the static pressure molding line and comprises a base plate assembly, a lifting assembly, a blowing assembly and an electric control system, wherein the base plate assembly comprises a rack and a grid net rack, and the lifting assembly comprises: the blowing assembly comprises a blowing bag, a blowing pipe and a valve; the lifting assembly and the air blowing assembly are arranged on a frame of the base plate assembly, the bottom end of the oil cylinder is fixed on an oil cylinder connecting seat, the oil cylinder connecting seat is fixed on a movable plate, and the movable plate fixes the two air blowing bags through nuts; the guide bar up-and-down motion in the guide sleeve guides the lifting of the oil cylinder, the automatic purging mechanism is novel in concept and simple in structure, can automatically purge the sand mould riser, avoids incomplete blowing, blow leakage and floating sand splashing of manual purging, is high in purging efficiency, effectively improves sand mould quality, and has good use value.
Description
Technical Field
The invention relates to the technical field of static pressure molding, in particular to an automatic purging machine for an exhaust riser of a static pressure molding line.
Background
Casting company green sand static pressure line, the molding of single host computer, the operation beat is 55 casees/hour, and the main product is: the cylinder head comprises a Richardson four-cylinder body, a 4NC four-cylinder body, a 4M5L four-cylinder body, a firewood feeding four-cylinder body, various cylinder head castings and the like. The static pressure line is compacted and molded, so that the whole sand mold is poor in air permeability, a plurality of exhaust risers are designed in the process for exhausting, and feeding is performed after the casting is cooled. Because the number of casting exhaust risers is large, the maximum number of casting molds reaches 40 exhaust risers, a sand mold is usually drilled with 2 servo air drilling hole machines and drilled through the exhaust risers to achieve the exhaust effect, however, after the exhaust risers are drilled through, a large amount of floating sand remains on the wall of the exhaust risers, after the mold is closed, the floating sand falls into a cavity, casting product defects are caused after casting, and the influence on the product quality is great.
The method is characterized in that the waste products and defective products of the static pressure line are analyzed, the reasons for causing the waste products and the defective products are found out, and the defective products are found to be rough in surface finish of the casting and a small amount of broken sand holes due to floating sand reserved in an exhaust riser after the drilling machine drills holes.
In order to blow off floating sand on the wall of the exhaust riser and reduce the influence of the floating sand on the product quality, 2 production workers blow air to each exhaust riser one by using air blowing guns before box closing in the prior art. However, the manual purging of the dead head has the following problems: 1. the manual blowing is that air is blown from the cavity to the outside of the vent hole before the box is turned over in the upper box, and because the diameter of the vent pin of the template is smaller than that of a drill bit of the drilling machine, the aperture difference exists between the joint surface of the vent pin and the drill hole, floating sand exists at the joint surface, and the air cannot be discharged completely by using the blowing mode; 2. because the lower core section is formed by continuously arranging the upper box and the lower box, floating sand is easy to splash by manual blowing and falls into the adjacent lower box; 3 because the gas pocket is more (about 40), and it is very fast to add the operation beat again, often causes the hourglass to blow the condition, and the long-time repetitive mechanical labor of operation workman, personnel are tired very easily, and the effect of blowing is unstable.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the automatic purging machine for the exhaust riser of the static pressure molding line, the automatic purging mechanism is novel in concept and simple in structure, can automatically purge the riser of the sand mold, avoids incomplete blowing, blow missing and floating sand splashing caused by manual purging, is high in purging efficiency, effectively improves the quality of the sand mold, and has good use value.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an automatic machine that sweeps of static pressure molding line exhaust riser, locates on the static pressure molding line, automatic machine that sweeps includes base plate subassembly, lifting unit, the subassembly and the electrical system of blowing, the base plate subassembly includes frame and check rack, lifting unit includes: the blowing assembly comprises a blowing bag, a blowing pipe and a valve; the lifting assembly and the air blowing assembly are arranged on a rack of the substrate assembly, and the rack is of a cuboid structure and is fixed on the raceway frame; the bottom end of the oil cylinder is fixed on an oil cylinder connecting seat, the oil cylinder connecting seat is fixed on a movable plate, and the movable plate fixes the two blowing bags through nuts; the fixed plate is welded on the rack, the guide sleeve is fixed on the fixed plate of the rack through a bolt, the guide rod is connected with the movable plate through a bolt, and the guide rod moves up and down in the guide sleeve to guide the lifting of the oil cylinder; the air blowing bag is of a hollow flat cylindrical shape, so that compressed air with a certain volume can be stored, and the stable and continuous air flow in the blowing process is ensured; the side opening of the blowing bag is connected with a pneumatic air compression pipeline through a hose; the bottom of the blowing bag is provided with a threaded hole and is connected with a valve and a blowing pipe through a pipe joint; the lattice net rack is fixed on the air blowing bag, and the lattice net is fixed at the bottom of the lattice net rack and used for positioning the blowing pipe and the position of the same sand mould riser, so that the position of the blowing pipe can be conveniently adjusted according to different sand mould risers; the lifting assembly and the blowing assembly act under the control of the electric control system to automatically blow the sand mould riser.
Furthermore, the rack is of a cuboid structure formed by square steel, and the grid net rack is formed by angle steel and two steel plates and is fixed on the air blowing bag; wherein the steel plate is to prevent sand from splashing onto the adjacent sand box during the air blowing process.
Furthermore, the guide rods and the guide sleeves are two groups and are respectively positioned on two sides of the oil cylinder, and a sealing cavity is formed between the guide rods and the guide sleeves through a guide belt, a groove ring and a dust ring.
Furthermore, the blowpipe is a universal bamboo joint metal pipe, and the using length, angle and blowing amount can be adjusted at will; the bottom screw hole of the blowing bag is a 1/2 screw hole of a pipe, the cooling pipe is a 1/2 pipe, the valve is a 1/2 manual valve, and the switch can be selected according to the number of sand mould risers.
Furthermore, pressure oil required by the oil cylinder comes from a secondary engine system of the hydrostatic line pump station and is connected to a hydraulic valve plate of the automatic purging machine through a hydraulic stop valve, and the hydraulic valve plate is provided with an electromagnetic valve, a hydraulic lock and a one-way throttle valve and used for controlling the action of the oil cylinder.
Furthermore, compressed air required by the air blowing bag comes from the air bag, compressed air of the air bag comes from a static pressure line compressed air pipeline, a solenoid valve and a pneumatic control valve are arranged between the air blowing bag and the air bag, the solenoid valve is actuated for ventilation, and the solenoid valve is powered off to stop air blowing.
Has the advantages that: according to the characteristics of a static pressure molding line, the automatic purging machine for the sand mould riser is designed, the automatic purging machine can automatically purge the sand mould riser, the cost is reduced by 1, 2 posts (4 workers) are required for manual purging to operate an intermittent sand box by using tools, and the automatic purging machine greatly reduces the labor cost and potential safety hazards; 2. The efficiency is improved: the manual purging of one sand mold needs more than 50 seconds, and the automatic purging machine can complete the purging within 15 seconds; 3. The quality is improved: the manual blowing has the conditions of incomplete blowing, blow leakage, cavity damage and floating sand splashing, so that the defective product is over 30 percent, and the automatic blowing machine has no problems, so that the defective product proportion is reduced to below 5 percent.
Drawings
FIG. 1 is a front view of an automatic purge machine according to an embodiment of the present disclosure;
FIG. 2 is a left side view of an automatic purge machine according to an embodiment of the present invention
FIG. 3 is a top view of an automatic purge machine according to an embodiment of the present invention
FIG. 4 is a hydraulic schematic of an automatic purge machine according to an embodiment of the present disclosure;
FIG. 5 is a pneumatic schematic of an automatic purge machine according to an embodiment of the invention.
Reference numerals: 1. A frame; 2. an oil cylinder; 3. a fixing plate; 4. An oil cylinder connecting seat; 5. a movable plate; 6. an air blowing bag; 7. a grid frame; 8. a manual ball valve; 9. a cooling tube; 10. a grid network; 11. a guide bar; 12. a guide sleeve; 13. A guide belt; 14. a groove ring; 15. a dust ring; 16. M20X50 external hexagonal bolt; 17. M12X30 hexagonal outer bolt; 18. an M27 nut; 19. M12X40 hexagonal outer bolt; 20. M12X30 hexagonal outer bolt; 21. M16X35 external hexagonal bolt; 22. a pipe joint; 24. an electromagnetic directional valve; 25. hydraulic locking; 26. a one-way throttle valve; 27. a hydraulic stop valve; 28. a hydraulic valve plate; 29. a pneumatic control valve; 30. and (4) air bags.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, and the directions of the present invention, such as up, down, left, right, front, back, etc., are only used for describing the technical solution of the present invention more clearly with reference to the drawings, and are not used as absolute directions for limiting the structure of the present invention.
As shown in fig. 1 to 3, the present invention provides an automatic purging machine for an exhaust riser of a static pressure molding line, which is arranged on the static pressure molding line and is used for automatically purging a sand mold riser, the automatic purging machine of the present invention comprises a base plate assembly, a lifting assembly, a blowing assembly and an electric control system, the base plate assembly comprises a rack 1 and a lattice grid 7, and the lifting assembly comprises: the device comprises an oil cylinder 2, a guide sleeve 12, a fixed plate 3, a guide rod 11, an oil cylinder connecting seat 4 and a movable plate 5, wherein the air blowing assembly comprises an air blowing bag 6, a blowing pipe 9 and a valve; the lifting assembly and the air blowing assembly are arranged on the frame 1 of the base plate assembly.
The frame 1 adopts 50MM square steel to form a cuboid structure and is fixed on a raceway frame, the raceway frame is two rows of support frames provided with a plurality of pulleys, a rectangular sand box moves on the pulleys of the raceway frame, and the grid net rack 7 adopts 30MM angle steel and two 680MMx870MM steel plates and is fixed on the blowing bag 6; the steel plates are positioned on the left side and the right side of the air blowing bag 6, play a role in blocking floating sand, and aim to prevent sand from splashing to an adjacent sand box during air blowing; the lattice net 10 is fixed at the bottom of the lattice net rack 7 and is used for positioning the blowing pipe 9 and the position of the same sand mould riser, so that the position of the blowing pipe 9 can be conveniently adjusted according to different sand mould risers; of course, the types and sizes of the square steel and the angle steel used in the frame 1 or the lattice framed 7 may be selected according to actual needs, and are not limited to the above sizes.
The oil cylinder 2 is an actuating element of a lifting mechanism, the bottom end of the oil cylinder 2 is fixed on an oil cylinder connecting seat 4 through a bolt, the oil cylinder connecting seat 4 is fixed on a movable plate 5, the movable plate 5 is connected with steel plates at two ends of the movable plate through bolts, and two blowing bags 6 are fixed by combining nuts; the fixed plate 3 is welded on the frame 1, the guide sleeve 12 is fixed on the fixed plate 3 of the frame 1 through bolts, specifically, four M12 bolts can be adopted for fixing, the guide rod 11 is connected with the movable plate 5 through bolts, and the guide rod 11 moves up and down in the guide sleeve 12 to guide the lifting of the oil cylinder 2; two groups of guide rods 11 and guide sleeves 12 are arranged on the front side and the rear side of the oil cylinder 2, a sealed cavity is formed between the guide rods 11 and the guide sleeves 12 through guide belts 13, groove rings 14 and dust rings 15, and the fixing mode of each component in the lifting assembly is not limited to the above mentioned mode and other common fixing modes in the prior art can also be adopted.
The blowing bag 6 is of a hollow flat cylindrical shape, can store compressed air with a certain volume, and ensures stable and continuous air flow in the blowing process; the side opening of the blowing bag 6 is connected with a pneumatic air pressure pipeline through a hose; the bottom of the blowing bag 6 is provided with a screw hole which is connected with the valve and the blowing pipe 9 through a pipe joint 22; the lattice net 10 is characterized in that the frame 7 is fixed on the blowing bag 6, the lattice net 10 is fixed at the bottom of the lattice net frame 7 and used for positioning the blowing pipe 9 and the sand mould riser, and the blowing pipe 9 can be conveniently adjusted according to different sand mould risers.
Specifically, the bottom of the blowing bag 6 is provided with 20 wire holes of a pipe 1/2 (English system size, which is equivalent to 12.7 mm, the same below), and the valve and the blowing pipe 9 are connected through a pipe joint 22; the blowpipe 9 is an 1/2 universal bamboo joint metal pipe, and the use length, angle and air blowing quantity can be adjusted at will; the valve is a 1/2 manual ball valve 8, and a switch can be selected according to the number of sand mould risers, so that blowing leakage and damage to a cavity are avoided; the blowing nozzle at the lower end of the blowing pipe 9 is inserted into the mesh of the mesh net 10, and is fixed inside the mesh net 10 because the position of the blowing pipe 9 is easily changed by the reaction force of the compressed air when the blow valve is opened.
The electrical control system includes: the electromagnetic induction type proximity switch, the electromagnetic valve, the PLC digital quantity input module, the PLC digital quantity output module, the button and the electric circuit are formed, and the electric control system controls the lifting assembly and the blowing assembly to move through the PLC module to automatically blow the sand mould riser.
As shown in fig. 4, in this embodiment, the pressure oil required by the oil cylinder 2 comes from the auxiliary machine system of the hydrostatic line pump station, the pressure is 10MPa, and the oil cylinder is connected to a hydraulic valve plate 28 of the automatic purging machine through a hydraulic stop valve 27, and the hydraulic valve plate 28 is provided with an electromagnetic directional valve 24, a hydraulic lock 25 and a one-way throttle valve 26 for controlling the action of the oil cylinder 2, wherein the electromagnetic valve K2 attracts the oil cylinder 2 to rise, and the electromagnetic valve K3 attracts the oil cylinder 2 to fall.
In this embodiment, compressed air required by the air blowing bag 6 comes from the 0.8m air blowing bag 30, compressed air of the air blowing bag 30 comes from a static pressure air pipeline, as shown in fig. 5, an electromagnetic valve K1 and a pneumatic control valve are arranged between the air blowing bag 6 and the air blowing bag 30, the electromagnetic valve K1 is actuated for ventilation, and the electromagnetic valve K1 is powered off to stop air blowing.
Before the automatic purging machine is used, firstly, according to a purging process of an exhaust riser of a sand mold in green sand molding, the automatic purging machine is designed, the model size of each component is confirmed, then, each component is manufactured and processed, after the manufacturing is completed, the installation position of the automatic purging machine is determined before a box closer on a static pressure line, then, the automatic purging machine is installed on the static pressure line, and the automatic purging machine comprises installation of a mechanical component, a hydraulic system and a blowing pipeline, connection of a gas circuit, connection of a hydraulic pipeline and installation and connection of an electric control system, the control system is connected into a static pressure line control program, then debugging is carried out, and after the debugging is completed, automatic purging of the riser of the sand mold can be carried out.
The automatic hair dryer comprises the following specific working steps:
1. the upper box sand mold is pushed to the lower part of the automatic blowing machine, and the sand box is positioned through a positioning device;
2. descending a lifting assembly of the automatic purging machine, and adjusting a blowing pipe to be aligned with a sand mould riser;
3. the electromagnetic valve in the gas circuit is closed, the compressed air is opened, and the purging action is carried out;
4. and after the purging is finished, the lifting assembly rises, the positioning device is opened, and the upper box sand mold is pushed forwards.
5. The purging action completes one cycle.
In the row of sand boxes of the static pressure molding line, an upper sand box and a lower sand box are arranged in sequence, and the upper sand box is provided with an exhaust riser which needs to be purged; the lower mold sand box is not provided with an exhaust riser, and does not need to be blown, so that the blowing device is kept still when the sand box is a lower mold.
The invention is designed by combining the blowing requirement of the dead head of the sand box of the static pressure molding line, has simple structure and ingenious design, saves the labor cost, reduces the potential safety hazard, greatly improves the blowing efficiency, and can effectively avoid the conditions of incomplete blowing, blow missing, cavity damage and floating sand splashing so as to reduce the defective proportion to below 5 percent.
The present invention is not described in detail in the prior art.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention are within the scope of the technical solution of the present invention without departing from the technical solution of the present invention.
Claims (6)
1. The utility model provides an automatic machine that sweeps of static pressure molding line exhaust riser, locates on the static pressure molding line, its characterized in that: the automatic purging machine comprises a base plate assembly, a lifting assembly, a blowing assembly and an electric control system, wherein the base plate assembly comprises a rack and a grid net rack, the lifting assembly comprises an oil cylinder, a guide sleeve, a fixed plate, a guide rod, an oil cylinder connecting seat and a movable plate, and the blowing assembly comprises a blowing bag, a blowing pipe and a valve; the lifting assembly and the air blowing assembly are arranged on a rack of the substrate assembly, and the rack is of a cuboid structure and is fixed on the raceway frame;
the bottom end of the oil cylinder is fixed on an oil cylinder connecting seat, the oil cylinder connecting seat is fixed on a movable plate, and the movable plate fixes the two blowing bags through nuts; the fixed plate is welded on the rack, the guide sleeve is fixed on the fixed plate of the rack through a bolt, the guide rod is connected with the movable plate through a bolt, and the guide rod moves up and down in the guide sleeve to guide the lifting of the oil cylinder;
the air blowing bag is of a hollow flat cylindrical shape, so that compressed air with a certain volume can be stored, and the stable and continuous air flow in the blowing process is ensured; the side opening of the blowing bag is connected with a pneumatic air compression pipeline through a hose; the bottom of the blowing bag is provided with a threaded hole and is connected with a valve and a blowing pipe through a pipe joint; the lattice net rack is fixed on the air blowing bag, and the lattice net is fixed at the bottom of the lattice net rack and used for positioning the blowing pipe and the position of the same sand mould riser, so that the position of the blowing pipe can be conveniently adjusted according to different sand mould risers;
the lifting assembly and the blowing assembly act under the control of the electric control system to automatically blow the sand mould riser.
2. The automatic purging machine for the air exhaust risers of the static molding line of claim 1, wherein: the frame is of a cuboid structure formed by square steel, and the grid net rack is formed by angle steel and two steel plates and is fixed on the air blowing bag; wherein the steel plate is to prevent sand from splashing onto the adjacent sand box during the air blowing process.
3. The automatic purging machine for the air exhaust risers of the static molding line of claim 1, wherein: the guide rods and the guide sleeves are two groups and are respectively positioned on two sides of the oil cylinder, and a sealing cavity is formed between the guide rods and the guide sleeves through a guide belt, a groove ring and a dustproof ring.
4. The automatic purging machine for the air exhaust risers of the static molding line of claim 1, wherein: the air blowing pipe is a universal bamboo joint metal pipe, and the using length, angle and air blowing amount can be adjusted at will; the bottom screw hole of the blowing bag is a 1/2 screw hole of a pipe, the cooling pipe is a 1/2 pipe, the valve is a 1/2 manual valve, and the switch can be selected according to the number of sand mould risers.
5. The automatic purging machine for the air exhaust risers of the static molding line of claim 1, wherein: the pressure oil required by the oil cylinder comes from a secondary machine system of a hydrostatic line pump station and is connected to a hydraulic valve plate of the automatic purging machine through a hydraulic stop valve, and the hydraulic valve plate is provided with an electromagnetic valve, a hydraulic lock and a one-way throttle valve and used for controlling the action of the oil cylinder.
6. The automatic purging machine for the air exhaust risers of the static molding line of claim 1, wherein: compressed air required by the air blowing bag comes from the air bag, compressed air of the air bag comes from a static pressure line compressed air pipeline, a solenoid valve and a pneumatic control valve are arranged between the air blowing bag and the air bag, the solenoid valve is actuated to suck air, and the solenoid valve is powered off to stop air blowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955791.6A CN110640089A (en) | 2019-10-09 | 2019-10-09 | Automatic purging machine for exhaust riser of static pressure molding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910955791.6A CN110640089A (en) | 2019-10-09 | 2019-10-09 | Automatic purging machine for exhaust riser of static pressure molding line |
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| CN110640089A true CN110640089A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910955791.6A Pending CN110640089A (en) | 2019-10-09 | 2019-10-09 | Automatic purging machine for exhaust riser of static pressure molding line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495928A (en) * | 2020-09-30 | 2021-03-16 | 宁波精迈机械有限公司 | Blowing control system and method of dust sweeper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201880878U (en) * | 2010-12-16 | 2011-06-29 | 致恒(天津)实业有限公司 | Air-blowing and lifting hydraulic system of sprue milling machine |
| CN103464688A (en) * | 2013-08-20 | 2013-12-25 | 安徽省宁国新宁装备制造科技发展有限公司 | Automatic casting cavity sweeping machine |
| CN210937008U (en) * | 2019-10-09 | 2020-07-07 | 第一拖拉机股份有限公司 | Automatic purging machine for exhaust riser of static pressure molding line |
-
2019
- 2019-10-09 CN CN201910955791.6A patent/CN110640089A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201880878U (en) * | 2010-12-16 | 2011-06-29 | 致恒(天津)实业有限公司 | Air-blowing and lifting hydraulic system of sprue milling machine |
| CN103464688A (en) * | 2013-08-20 | 2013-12-25 | 安徽省宁国新宁装备制造科技发展有限公司 | Automatic casting cavity sweeping machine |
| CN210937008U (en) * | 2019-10-09 | 2020-07-07 | 第一拖拉机股份有限公司 | Automatic purging machine for exhaust riser of static pressure molding line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495928A (en) * | 2020-09-30 | 2021-03-16 | 宁波精迈机械有限公司 | Blowing control system and method of dust sweeper |
| CN112495928B (en) * | 2020-09-30 | 2022-02-18 | 宁波精迈机械有限公司 | Blowing control system and method of dust sweeper |
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