CN111702133B - Pressure equipment for riser - Google Patents
Pressure equipment for riser Download PDFInfo
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- CN111702133B CN111702133B CN202010582786.8A CN202010582786A CN111702133B CN 111702133 B CN111702133 B CN 111702133B CN 202010582786 A CN202010582786 A CN 202010582786A CN 111702133 B CN111702133 B CN 111702133B
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- 238000005266 casting Methods 0.000 claims abstract description 46
- 230000000630 rising effect Effects 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 244000309464 bull Species 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 239000002184 metal Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000002414 leg Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/09—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure
- B22D27/11—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using pressure making use of mechanical pressing devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
- B22D29/06—Strippers actuated by fluid pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention relates to the technical field of riser feeding in casting, and discloses a pressurizing device for risers, which comprises a casting machine body and a hydraulic cylinder, wherein a top plate is arranged above the casting machine body, support rods are fixedly arranged on two sides of the lower surface of the top plate, the lower ends of the two support rods are fixedly connected with two corresponding sides of the upper surface of the casting machine body, the hydraulic cylinder is fixedly arranged on the lower surface of the top plate, a lower die is fixedly arranged on the upper surface of the casting machine body, an upper die is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, cavities are respectively formed in the lower die and the upper die, a sprue and a riser are respectively arranged at two ends of the upper surface of the upper die and are communicated with the corresponding cavities, and rotating rods are rotatably arranged on two sides of the lower die through rolling bearings. This pressure equipment for rising head can carry out convenient pressurization to the rising head, effectively improves the technology yield of product.
Description
Technical Field
The invention relates to the technical field of casting riser feeding, in particular to a pressurizing device for risers.
Background
Gravity casting is the most common casting mode in the casting field, at present, the static pressure of molten metal in a pouring gate and a riser is used for feeding a product, and the feeding effect of the gravity feeding method depends on the gravity (static pressure) generated by the height of the molten metal in the pouring gate and the riser, so that excessive molten metal must be injected, more pouring gate heads and riser heads remained after feeding can be generated in the pouring gate and the riser, the process yield is reduced, the material and energy are wasted, and the production cost is high.
The patent No. CN110625069A discloses a pressure device for a riser, when in use, after an upper metal mould and a lower metal mould are combined, a riser sealing cylinder presses and seals a riser sealing cover and the riser, molten metal flows into the riser through a mould cavity after being injected into a pouring gate, so that pressure is displayed in a contact pressure gauge arranged at the other end of an air pipe on the riser cavity and the riser cover, a contact is closed after the liquid injection is finished and matched with the set pressure, the metal liquid level at the moment is lower than the metal liquid level in an open riser, the contact pressure gauge outputs a signal to a PLC (programmable logic controller), the PLC sends an instruction to an electromagnetic valve to open the electromagnetic valve, compressed air enters the air pipe to pressurize the metal liquid level in the riser through a riser air hole, and the molten metal lower than the open riser in the riser is used for timely pressurizing and feeding a product in the mould cavity, thereby effectively improving the utilization rate of the molten metal and effectively improving the process yield rate of the product, the production cost is reduced, and the technical scheme still has the defects that:
firstly, the technical scheme only pressurizes a riser, and a pouring gate is still arranged in an open manner, so that the pressurizing effect is not good enough, and the utilization rate of molten metal is not high enough;
secondly, this technical scheme adopts the cylinder to seal the rising head, through PLC controller control solenoid valve, cooperates the trachea to pressurize the rising head, and the structure is complicated, and the cost is higher, can not satisfy the demand of energy-conserving production.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the pressurizing equipment for the riser, which has the advantages of conveniently pressurizing the riser, effectively improving the process yield of products and lowering the cost, and solves the problems that the pressurizing equipment for the riser only pressurizes the riser, and a pouring gate is still arranged in an open manner, so that the pressurizing effect is not good enough and the cost is high.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a pressurizing device for risers comprises a casting machine body and a hydraulic cylinder, wherein a top plate is arranged above the casting machine body, support rods are fixedly arranged on two sides of the lower surface of the top plate, the lower ends of the two support rods are fixedly connected with two corresponding sides of the upper surface of the casting machine body, the hydraulic cylinder is fixedly arranged on the lower surface of the top plate, a lower die is fixedly arranged on the upper surface of the casting machine body, an upper die is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, cavities are respectively formed in the lower die and the upper die, a sprue and a riser are respectively arranged at two ends of the upper surface of the upper die and are communicated with the corresponding cavities, rotating rods are rotatably arranged on two sides of the lower die through rolling bearings, gears are fixedly sleeved at one ends of the outer sides of the two rotating rods, sliding plates are fixedly arranged at one ends of the outer sides of the two gears, two the spout has all been seted up in the outside of slide, the outside of lower mould is provided with the swivel mount, the lateral wall of casting organism has been seted up and has been dodged the groove, the lower extreme of swivel mount with dodge the groove and match, the inside both sides of swivel mount and with correspond the equal fixed slider that is provided with in position that the spout corresponds, two the slider all with corresponding spout sliding connection, the inside top both sides of swivel mount are all fixed and are provided with the depression bar, two the depression bar all with corresponding runner and rising head phase-match, two the pole wall of depression bar is all fixed the cup joint has sealed the pad, the both sides of going up the mould are all fixed and are provided with the connecting rod, two the outside one end of connecting rod is all fixed and is provided with the rack, two the lower extreme of rack all with corresponding the gear phase-match, the fixed throw-out collar that is provided with in lower extreme middle part of swivel mount, the below of casting organism just is located the rear side of throw-out collar is provided with the drive the swivel mount gliding from top to bottom A pushing mechanism;
preferably, pushing mechanism includes motor and cam, the motor set up in the below of casting organism and being located the rear side of push ring, the output of motor extends to the inside of push ring, the cam fixed cup joint with the output of motor, the lower extreme outside one end of cam with the inside wall of push ring offsets.
Preferably, the upper end of the rotating frame is provided with an opening.
Preferably, both sides of the motor are fixedly connected with the bottom of the casting machine body through fixing rods.
Preferably, the motor is of the NMRV110 type.
Preferably, a limiting rod is movably sleeved outside a piston rod of the hydraulic cylinder, and two ends of the limiting rod are fixedly sleeved with corresponding supporting rods.
Preferably, the lower end of the casting machine body is provided with a plurality of supporting feet.
Preferably, the cam (12) is made of wear-resistant steel.
(III) advantageous effects
Compared with the prior art, the invention provides a pressurizing device for a riser, which has the following beneficial effects:
1. this pressure equipment for rising head drives through pneumatic cylinder piston rod extension and goes up the mould and cooperate with the lower mould downwards, goes up the rack downstream that the in-process of mould downstream drove both sides, and both sides rack drives the gear revolve of lower mould both sides to make two gears drive two slides and rotate, two slides drive two rungs and rotate, can make two depression bars rotatory to the runner that corresponds and rising head directly over, thereby can carry out the shutoff to runner and rising head simultaneously, thereby realize pressurization work.
2. This pressure equipment for rising head, through the cooperation of the push ring of swivel mount below and the cam of motor output end, drive two depression bars and get into the inside of the runner and the rising head that correspond and can realize the pressurization to runner and rising head, equipment structure is simple, and the cost is lower.
Drawings
Fig. 1 is a schematic structural view of a pressurization device for a riser according to the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is an enlarged view of the portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B of fig. 2.
In the figure: 1 casting a machine body, 2 top plates, 3 hydraulic cylinders, 4 lower dies, 5 upper dies, 6 gates, 7 risers, 8 rotating frames, 9 pressure rods, 10 push rings, 11 motors, 12 cams, 13 fixing rods, 14 rotating rods, 15 gears, 16 sliding plates, 17 sliding blocks, 18 connecting rods, 19 racks and 20 limiting rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a pressurizing device for risers comprises a casting machine body 1 and a hydraulic cylinder 3, wherein a top plate 2 is arranged above the casting machine body 1, support rods are fixedly arranged on both sides of the lower surface of the top plate 2, the lower ends of the two support rods are fixedly connected with both sides of the upper surface of the corresponding casting machine body 1, the hydraulic cylinder 3 is fixedly arranged on the lower surface of the top plate 2, a lower die 4 is fixedly arranged on the upper surface of the casting machine body 1, an upper die 5 is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder 3, cavities are respectively arranged inside the lower die 4 and the upper die 5, a sprue 6 and a riser 7 are respectively arranged at both ends of the upper surface of the upper die 5, the sprue 6 and the riser 7 are respectively communicated with the corresponding cavities, rotating rods 14 are rotatably arranged on both sides of the lower die 4 through rolling bearings, gears 15 are fixedly sleeved at both outer ends of the two rotating rods 14, sliding plates 16 are fixedly arranged at both outer ends of the two gears 15, the outer sides of the two sliding plates 16 are respectively provided with a sliding groove, the outer side of the lower die 4 is provided with a rotating frame 8, the side wall of the casting machine body 1 is provided with an avoiding groove, the lower end of the rotating frame 8 is matched with the avoiding groove, the avoiding groove is formed so that the rotating frame 8 can not interfere with the casting machine body 1 when rotating to a state perpendicular to the casting machine body 1, the two sides inside the rotating frame 8 and the position corresponding to the corresponding sliding groove are respectively and fixedly provided with a sliding block 17, the two sliding blocks 17 are respectively and slidably connected with the corresponding sliding grooves, the two sides of the top end inside the rotating frame 8 are respectively and fixedly provided with a pressure lever 9, the two pressure levers 9 are respectively matched with the corresponding sprue 6 and riser 7, the lever walls of the two pressure levers 9 are respectively and fixedly sleeved with a sealing gasket, the two sides of the upper die 5 are respectively and fixedly provided with connecting rods, one end of the outer sides of the two connecting rods are respectively and fixedly provided with a rack 19, the lower ends of the two racks 19 are respectively matched with the corresponding gears 15, the middle part of the lower end of the rotating frame 8 is fixedly provided with a push ring 10, and a pushing mechanism which drives the rotating frame 8 to slide up and down is arranged below the casting machine body 1 and on the rear side of the push ring 10.
Pushing mechanism includes motor 11 and cam 12, and motor 11 sets up in the below of casting organism 1 and is located the rear side of push ring 10, and motor 11's output extends to the inside of push ring 10, and cam 12 is fixed cup joints the output with motor 11, and the lower extreme outside one end of cam 12 offsets with the inside wall of push ring 10, and motor 11 drives cam 12 and rotates and can promote about push ring 10, thereby drives the swivel mount and reciprocates, thereby realizes reciprocating of two depression bars 9.
The upper end of the swivel frame 8 is provided with an opening, so that the swivel frame 8 does not interfere with the piston rod of the hydraulic cylinder 3 when rotating.
Both sides of the motor 11 are fixedly connected with the bottom of the casting machine body 1 through the fixing rods 13, so that the motor 11 is more stable in connection with the casting machine body.
The model of motor 11 is NMRV110, and this model motor 11 is gear motor, can improve great drive power, can make the stable promotion swivel mount 8 removal of cam 12.
The gag lever post 20 has been cup jointed in the piston rod outside activity of pneumatic cylinder 3, and the both ends of gag lever post 20 all cup joint with the bracing piece that corresponds is fixed, and stability when reinforcing pneumatic cylinder 3's piston rod is flexible improves and goes up mould 5 and lower mould 4 complex precision.
The lower extreme of casting machine body 1 is provided with a plurality of supporting legss, can carry out firm support to casting machine body 1.
The cam 12 is made of wear-resistant steel, so that the service life of the cam 12 is prolonged, and the cost for replacing parts is reduced.
In conclusion, when the pressurizing device for the riser is used, a worker connects a power supply of the hydraulic cylinder 3, a piston rod of the hydraulic cylinder 3 extends downwards to push the upper die 5 to move downwards, and finally the upper die 5 is in press fit with the lower die 4, and the limiting plate 20 limits the piston rod of the hydraulic cylinder 2 in the moving process, so that the stability of the piston rod of the hydraulic cylinder 3 in stretching and retracting is enhanced, the matching precision of the upper die 5 and the lower die 4 is improved, in the downward moving process of the upper die 5, racks 19 fixedly arranged at two sides of the upper die 5 drive gears 15 at two sides of the corresponding lower die 4 to rotate, so that the gears 15 at two sides drive corresponding rotating plates 16 to rotate, and finally the rotating plates 16 at two sides rotate to be perpendicular to the casting machine body 1, and the avoidance grooves in the side wall of the casting machine body 1 are formed so that the rotating frame 8 does not interfere with the casting machine body 1 when rotating to be perpendicular to the casting machine body 1, when pouring is finished, a motor of the motor 11 is switched on, the motor 11 rotates to drive the cam 12 to rotate, when the lower end of the cam 12 rotates to abut against the lower end of the inner side of the push ring 10, the push ring 10 drives the rotating frame 8 to move downwards, so that two pressure rods 9 on the inner side of the upper end of the rotating frame 8 respectively press the corresponding pouring gate 6 and the corresponding riser 7, air in a cavity is extruded, and pressurization work is realized, when a poured product needs to be disassembled, a worker switches on a power supply of the motor 11, when the motor 11 rotates to drive the cam 12 to rotate to abut against the upper end of the inner side of the push ring 10, the rotating frame 8 is driven to move upwards, so that the two pressure rods 9 are driven to leave from the corresponding pouring gate 6 and the riser 7, then the power supply of the hydraulic cylinder 3 is switched on, the hydraulic cylinder 3 drives the upper die 5 to move upwards, in the upward movement process of the upper die 5, the racks 19 on the two sides of the upper die 5 drive the gears 15 on the two sides of the lower die 4 to rotate, so that the rotating frame 8 is driven to rotate to be horizontally arranged with the casting machine body 1, and at the moment, a poured product can be taken out from the lower die 4.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a pressurized equipment for rising head, includes casting organism (1) and pneumatic cylinder (3), its characterized in that: the top of casting organism (1) is provided with roof (2), the lower surface both sides of roof (2) are all fixed and are provided with the bracing piece, two the lower extreme of bracing piece all with correspond the upper surface both sides fixed connection of casting organism (1), pneumatic cylinder (3) are fixed to be set up in the lower surface of roof (2), the upper surface fixed of casting organism (1) is provided with lower mould (4), the piston rod end fixed of pneumatic cylinder (3) is provided with last mould (5), the die cavity has all been seted up with the inside of last mould (5) in lower mould (4), the upper surface both ends of going up mould (5) are provided with runner (6) and rising head (7) respectively and runner (6) and rising head (7) all with the corresponding the die cavity intercommunication sets up, the both sides of lower mould (4) all are provided with bull stick (14) through antifriction bearing rotation, gears (15) are fixedly sleeved at one end of the outer sides of the two rotating rods (14), sliding plates (16) are fixedly arranged at one end of the outer sides of the two gears (15), sliding grooves are formed in the outer sides of the two sliding plates (16), rotating frames (8) are arranged on the outer sides of the lower dies (4), avoiding grooves are formed in the side walls of the casting machine body (1), the lower ends of the rotating frames (8) are matched with the avoiding grooves, sliding blocks (17) are fixedly arranged on two sides of the inner portion of each rotating frame (8) and at positions matched with the corresponding sliding grooves, the two sliding blocks (17) are slidably connected with the corresponding sliding grooves, pressing rods (9) are fixedly arranged on two sides of the top end of the inner portion of each rotating frame (8), the two pressing rods (9) are matched with the corresponding gates (6) and the corresponding risers (7), and sealing gaskets are fixedly sleeved on rod walls of the two pressing rods (9), connecting rods are fixedly arranged on two sides of the upper die (5), racks (19) are fixedly arranged at one ends of the outer sides of the two connecting rods, the lower ends of the two racks (19) are matched with the corresponding gears (15), a push ring (10) is fixedly arranged in the middle of the lower end of the rotating frame (8), and a pushing mechanism for driving the rotating frame (8) to slide up and down is arranged below the casting machine body (1) and behind the push ring (10);
the pushing mechanism comprises a motor (11) and a cam (12), the motor (11) is arranged below the casting machine body (1) and is located on the rear side of the push ring (10), the output end of the motor (11) extends into the push ring (10), the cam (12) is fixedly sleeved on the output end of the motor (11), and one end of the outer side of the lower end of the cam (12) abuts against the inner side wall of the push ring (10);
the upper end of the rotating frame (8) is provided with an opening;
both sides of the motor (11) are fixedly connected with the bottom of the casting machine body (1) through fixing rods (13);
the limiting rod (20) is movably sleeved on the outer side of the piston rod of the hydraulic cylinder (3), and two ends of the limiting rod (20) are fixedly sleeved with the corresponding supporting rods.
2. The pressurization device for risers of claim 1, wherein: the model of the motor (11) is NMRV 110.
3. The pressurization device for risers of claim 1, wherein: the lower end of the casting machine body (1) is provided with a plurality of supporting legs.
4. The pressurization device for risers of claim 1, wherein: the cam (12) is made of wear-resistant steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582786.8A CN111702133B (en) | 2020-06-23 | 2020-06-23 | Pressure equipment for riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582786.8A CN111702133B (en) | 2020-06-23 | 2020-06-23 | Pressure equipment for riser |
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| Publication Number | Publication Date |
|---|---|
| CN111702133A CN111702133A (en) | 2020-09-25 |
| CN111702133B true CN111702133B (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010582786.8A Active CN111702133B (en) | 2020-06-23 | 2020-06-23 | Pressure equipment for riser |
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| Country | Link |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773414A (en) * | 2012-04-06 | 2012-11-14 | 北京时代锐智科贸有限公司 | No-riser casting machine |
| CN102814465A (en) * | 2012-04-06 | 2012-12-12 | 河北锐利机械科技有限公司 | Spheroidal graphite cast iron casting mould and riser-free casting method adopting same |
| CN105436316A (en) * | 2015-12-21 | 2016-03-30 | 江苏大学 | Finishing mould with top pressurizing device |
| CN105817599A (en) * | 2016-04-26 | 2016-08-03 | 安徽纯启动力机械有限公司 | Die casting technology for shrinkage-prevention die casting |
| CN106061650A (en) * | 2014-02-28 | 2016-10-26 | 日立金属株式会社 | Method for producing cast article and breathable mold |
| CN205869404U (en) * | 2016-05-20 | 2017-01-11 | 江苏苏美达车轮有限公司 | Casting wheel hub's mould |
| CN206392836U (en) * | 2016-12-26 | 2017-08-11 | 惠州市朝鲲科技有限公司 | A kind of ultra-thin-wall casting forming machine |
| CN110625069A (en) * | 2019-10-01 | 2019-12-31 | 无锡市蠡湖铸业有限公司 | Pressure device for riser |
-
2020
- 2020-06-23 CN CN202010582786.8A patent/CN111702133B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773414A (en) * | 2012-04-06 | 2012-11-14 | 北京时代锐智科贸有限公司 | No-riser casting machine |
| CN102814465A (en) * | 2012-04-06 | 2012-12-12 | 河北锐利机械科技有限公司 | Spheroidal graphite cast iron casting mould and riser-free casting method adopting same |
| CN106061650A (en) * | 2014-02-28 | 2016-10-26 | 日立金属株式会社 | Method for producing cast article and breathable mold |
| CN105436316A (en) * | 2015-12-21 | 2016-03-30 | 江苏大学 | Finishing mould with top pressurizing device |
| CN105817599A (en) * | 2016-04-26 | 2016-08-03 | 安徽纯启动力机械有限公司 | Die casting technology for shrinkage-prevention die casting |
| CN205869404U (en) * | 2016-05-20 | 2017-01-11 | 江苏苏美达车轮有限公司 | Casting wheel hub's mould |
| CN206392836U (en) * | 2016-12-26 | 2017-08-11 | 惠州市朝鲲科技有限公司 | A kind of ultra-thin-wall casting forming machine |
| CN110625069A (en) * | 2019-10-01 | 2019-12-31 | 无锡市蠡湖铸业有限公司 | Pressure device for riser |
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| Publication number | Publication date |
|---|---|
| CN111702133A (en) | 2020-09-25 |
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Address after: Hanshan Industrial Park, Ma'anshan City, Anhui Province (Lintou Town, Hanshan county) Patentee after: Ma'anshan Changyu Machinery Equipment Co.,Ltd. Address before: Hanshan Industrial Park, Ma'anshan City, Anhui Province (Lintou Town, Hanshan county) Patentee before: MAANSHAN CHANGYU MACHINERY EQUIPMENT Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A pressurized equipment for risers Effective date of registration: 20231010 Granted publication date: 20211207 Pledgee: Hanshan County sub branch of Postal Savings Bank of China Ltd. Pledgor: Ma'anshan Changyu Machinery Equipment Co.,Ltd. Registration number: Y2023980060545 |