CN109175317B - Knockout device is used in cylinder head casting production - Google Patents
Knockout device is used in cylinder head casting production Download PDFInfo
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- CN109175317B CN109175317B CN201811131880.0A CN201811131880A CN109175317B CN 109175317 B CN109175317 B CN 109175317B CN 201811131880 A CN201811131880 A CN 201811131880A CN 109175317 B CN109175317 B CN 109175317B
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- shakeout
- knockout
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- hopper
- device base
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- 238000005266 casting Methods 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 15
- 238000013016 damping Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 239000000428 dust Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 9
- 229920001875 Ebonite Polymers 0.000 claims description 5
- 239000003110 molding sand Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 244000035744 Hura crepitans Species 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- B22D29/02—Vibratory apparatus specially designed for shaking out flasks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blast Furnaces (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
A knockout device for cylinder head casting production comprises a device base, a knockout hopper, a vibration motor and a control electronic box, wherein eight groups of damping springs are respectively and fixedly installed on two sides of the upper part of the device base, the upper ends of the eight groups of damping springs are fixedly installed with the knockout hopper, a sand conveying crawler is installed on the upper part of the device base, the knockout hopper is positioned on the upper part of the sand conveying crawler, the vibration motor is respectively and fixedly installed on two side surfaces of the knockout hopper, a knockout platform is installed on the upper end of the knockout hopper, two sides of the knockout platform are respectively connected with a feeding guide plate and a discharging guide plate, the knockout platform is of a plate-shaped structure formed by welding a plurality of equal-length horizontal plates and vertical plate ends in a cross manner, the horizontal plates and the vertical plate ends are welded on the side surfaces of a sleeve, and a knocking hammer is installed inside the sleeve. The treatment effect on the molding sand on the surface of the casting is increased, and the treatment efficiency is increased.
Description
Technical Field
The invention relates to the field of cylinder cover casting production, in particular to a shakeout device for cylinder cover casting production.
Background
The cylinder is widely applied to the field of transportation of ships, automobiles and the like, the cylinder cover serving as an important component of the cylinder needs to be processed through various processes of casting, milling, drilling and the like in the production process, according to relevant data analysis and estimation, China has about 2 million families with various casting factories, about 120 million workers, about 1200 million tons of annual castings, the casting yield value exceeds 400 million yuan, the world is the second place, 100 million tons of export castings in 2000 are provided, and the total value is more than 10 hundred million dollars. The economic construction scale can be continuously enlarged, the outlet quantity of the castings is increased, the yield of the castings in China is expected to be continuously increased, and the castings need to be subjected to shakeout treatment and taken out after the pouring in the casting process is finished.
The shakeout device relies on the shakeout platform vibrations to shake off and depends on the molding sand on casting surface, because the molding sand makes the sand box through the compaction repeatedly and pours into a mould again, and the pouring in-process is being heated the moisture that has evaporated in the molding sand, makes the molding sand blocking structure, and traditional shakeout device only relies on the shakeout platform vibration to shake off the molding sand, and the shakeout effect is not obvious, and shakeout is inefficient.
Disclosure of Invention
The invention aims to solve the problems that the traditional knockout device shakes and shakes out molding sand only by relying on the vibration of a knockout platform, the knockout effect is not obvious, and the knockout efficiency is low, and aims to provide the knockout device for cylinder cover casting production.
A shakeout device for casting production of a cylinder cover comprises a device base, a shakeout hopper, a vibration motor and a control electric box, wherein eight groups of damping springs are fixedly arranged on two sides of the upper portion of the device base respectively, the upper ends of the eight groups of damping springs are fixedly provided with the shakeout hopper, a sand conveying crawler is arranged on the upper portion of the device base, the shakeout hopper is positioned on the upper portion of the sand conveying crawler, the vibration motor is fixedly arranged on the side surfaces of two sides of the shakeout hopper respectively, the vibration motor is electrically connected with the control electric box, the control electric box is arranged on one side of the device base, a shakeout platform is arranged on the upper end of the shakeout hopper, and two sides,
the shakeout platform is of a plate-shaped structure formed by welding a plurality of equal-length horizontal plates and a vertical plate end in a cross mode, the horizontal plates and the vertical plate end are welded to the side face of a sleeve, a knocking hammer is installed inside the sleeve, a hard rubber sleeve is sleeved on the upper end of the knocking hammer, a cam is connected to the lower end of the knocking hammer, the cam is fixedly installed on a fixed shaft, the fixed shaft is fixedly installed on the bottom face of the shakeout platform through a bearing seat, a cylindrical gear is installed at one end of the fixed shaft, a worm is fixed to one side, corresponding to the cylindrical gear, of the shakeout platform through the bearing seat, one end of the worm is located outside the shakeout hopper and is.
Furthermore, the shakeout platform inclines at an angle of 30 degrees with the horizontal plane, the shakeout platform is connected feeding baffle one end side and is higher than and connects ejection of compact baffle one end side, and adjacent two sets of horizontal plate upper portion between the sleeve is installed the roller bearing, roller bearing outside ring cover has the cylinder.
Furthermore, the two sides inside the shakeout hopper are respectively fixed with a spray pipe, one end side of the spray pipe is connected with a water outlet of the water pump through a pipeline, a water inlet of the water pump is connected with a water tank through a pipeline, the water tank and the water pump are installed on the side surface of the device base, and the water pump is electrically connected with the control electronic box.
Furthermore, the upper part of the shakeout hopper is provided with a dust collection cover, the upper part of the dust collection cover is connected with an air inlet of a fan through a pipeline, the air outlet of the fan is connected with one end of an air guide pipe, the other end of the air guide pipe is positioned inside the water tank, and the fan is arranged on one side of the device base and is electrically connected with a control electric box.
Furthermore, the air guide pipe is arranged at one end inside the water tank and is provided with double-layer filter screen plates, and sponge cushions are filled between the double-layer filter screen plates.
The invention has the beneficial effects that:
the shakeout platform is arranged to be a plate-shaped structure formed by welding a plurality of horizontal plates and vertical plates on the sleeve in a cross manner, the knocking hammer is arranged in the sleeve, the lower end of the knocking hammer is connected with the cam, the cam is fixedly arranged on the fixed shaft, one end of the fixed shaft is connected with the worm through the cylindrical gear, one end of the worm is positioned outside the shakeout hopper and is connected with the rotating shaft of the driving motor through the hinge, the driving motor is used for rotating to drive the worm to rotate, so that the fixed shaft and the cam are driven to rotate, the knocking hammer is driven to move up and down in the sleeve in the rotating process of the cam, a casting positioned on the upper part of the shakeout platform is knocked upwards, and casting surface molding sand is knocked on the.
Through at shakeout platform and horizontal plane slope 30 degrees angles, shakeout platform is connected feeding baffle one end side and is higher than and connects ejection of compact baffle one end side, and the foundry goods enters into the shakeout platform from the feeding baffle, moves to the shakeout platform low department along with the shakeout platform vibration, is convenient for take out the foundry goods, and the horizontal plate is on a parallel with the feeding baffle, and the roller bearing is installed on the horizontal plate upper portion between two sets of adjacent sleeves, and the roller bearing outside ring cover has the cylinder, reduces the friction of foundry goods and shakeout platform.
Install the dust absorption lid through fighting upper portion at the shakeout, the dust absorption is covered the upper portion and is had the fan air intake through the pipe connection, and the fan air outlet is connected with guide duct one end, and the guide duct other end is located inside the water tank, connects the dust absorption lid through the fan, absorbs the dust that the shakeout in-process produced inside the water tank, avoids the dust to spread to the air.
Through being located the inside one end of water tank at the guide duct and installing double-deck filter plate, it has the foam-rubber cushion to fill between the double-deck filter plate, avoids absorptive dust to fall into the water tank, is convenient for clear up the dust.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a structural view of a shakeout platform of the present invention;
FIG. 3 is a cross-sectional view of a shakeout platform of the present invention;
FIG. 4 is a cross-sectional view of the water tank of the present invention;
in the figure: 1. a device base; 2. a shakeout hopper; 3. a vibration motor; 4. controlling an electric box; 12. a damping spring; 13. a sand conveying crawler belt; 14. a shakeout platform; 15. a feeding guide plate; 16. a discharging guide plate; 21. a horizontal plate; 22. a vertical plate; 23. a sleeve; 24. knocking hammers; 25. a hard rubber sleeve; 26. a cam; 27. a fixed shaft; 28. a cylindrical gear; 29. a worm; 30. a drive motor; 41. a roller; 42. a drum; 51. a spray tube; 52. a water pump; 53. a water tank; 61. a dust collection cover; 62. a fan; 63. an air guide pipe; 64. double-layer filter screen plate; 65. a spongy cushion.
Detailed Description
The technical means, the creation features, the achievement purposes and the effects of the invention are easy to understand and understand, and the invention is further explained by combining the specific drawings.
Example 1
Shown in combination with fig. 1, 2 and 3; a knockout device for cylinder head casting production comprises a device base 1, a knockout hopper 2, a vibration motor 3 and a control electric box 4, wherein eight groups of damping springs 12 are respectively and fixedly arranged on two sides of the upper part of the device base 1, the knockout hopper 2 is fixedly arranged at the upper ends of the eight groups of damping springs 12, a sand conveying crawler 13 is arranged on the upper part of the device base 1, the knockout hopper 2 is positioned on the upper part of the sand conveying crawler 13, the vibration motor 3 is respectively and fixedly arranged on the side surfaces of two sides of the knockout hopper 2, the vibration motor 3 is electrically connected with the control electric box 4, the control electric box 4 is arranged on one side of the device base 1, a knockout platform 14 is arranged at the upper end of the knockout hopper 2, two sides of the knockout platform 14 are respectively connected with,
the shakeout platform 14 is a plate-shaped structure formed by cross welding of a plurality of equal-length horizontal plates 21 and vertical plates 22, the ends of the horizontal plates 21 and the vertical plates 22 are welded on the side surface of a sleeve 23, a knocking hammer 24 is installed inside the sleeve 23, a hard rubber sleeve 25 is sleeved on the upper end of the knocking hammer 24 in an annular mode, the lower end of the knocking hammer 24 is connected with a cam 26, the cam 26 is fixedly installed on a fixing shaft 27, the fixing shaft 27 is fixedly installed on the bottom surface of the shakeout platform 14 through a bearing seat, a cylindrical gear 28 is installed at the end head of one end of the fixing shaft 27, a worm 29 is fixed on one side, corresponding to the cylindrical gear 28, of the shakeout platform 14 through the bearing seat, one end of the worm.
The shakeout platform 14 inclines at an angle of 30 degrees with the horizontal plane, the shakeout platform 14 is connected with the feeding guide plate 15 and one end side is higher than the side of connecting the discharging guide plate 16, the upper portion of the horizontal plate 21 between two adjacent groups of sleeves 23 is provided with a roller 41, and the outer side of the roller 41 is annularly sleeved with a roller 42.
The inside both sides of 2 inside sides of shakeout fill are fixed with spray pipe 51 respectively, and spray pipe 51 one end side passes through the pipe connection water pump 52 delivery port, and the water pump 52 water inlet passes through pipe connection water tank 53, and water tank 53 and water pump 52 are installed in device base 1 side, and water pump 52 electric connection control electronic box 4.
The utility model provides a cylinder head casting production is with knockout device, theory of operation:
the sand box that the pouring was accomplished enters into knockout platform 14 through feeding guide 15, knockout platform 14 is fixed in inside knockout fill 2, knockout fill 2 side-mounting has vibrating motor 3, vibrating motor 3 electric connection control electronic box 4, control electronic box 4 external power supply control vibrating motor 3 work, the sand box makes the molding sand that depends on the casting surface drop under knockout platform 14 vibration, the molding sand that drops off falls into on defeated sand track 13 through knockout fill 2 and transports knockout fill 2, the casting moves down along knockout platform 14 slope face on knockout platform 14, the removal in-process is through the beat of rapping hammer 24, reduce the adsorption capacity of casting surface molding sand, the casting that the knockout was accomplished is discharged through ejection of compact guide 16, increase the knockout effect, increase knockout efficiency.
Example 2
Shown in combination with fig. 1, 2 and 3; a knockout device for cylinder head casting production comprises a device base 1, a knockout hopper 2, a vibration motor 3 and a control electric box 4, wherein eight groups of damping springs 12 are respectively and fixedly arranged on two sides of the upper part of the device base 1, the knockout hopper 2 is fixedly arranged at the upper ends of the eight groups of damping springs 12, a sand conveying crawler 13 is arranged on the upper part of the device base 1, the knockout hopper 2 is positioned on the upper part of the sand conveying crawler 13, the vibration motor 3 is respectively and fixedly arranged on the side surfaces of two sides of the knockout hopper 2, the vibration motor 3 is electrically connected with the control electric box 4, the control electric box 4 is arranged on one side of the device base 1, a knockout platform 14 is arranged at the upper end of the knockout hopper 2, two sides of the knockout platform 14 are respectively connected with,
the shakeout platform 14 is a plate-shaped structure formed by cross welding of a plurality of equal-length horizontal plates 21 and vertical plates 22, the ends of the horizontal plates 21 and the vertical plates 22 are welded on the side surface of a sleeve 23, a knocking hammer 24 is installed inside the sleeve 23, a hard rubber sleeve 25 is sleeved on the upper end of the knocking hammer 24 in an annular mode, the lower end of the knocking hammer 24 is connected with a cam 26, the cam 26 is fixedly installed on a fixing shaft 27, the fixing shaft 27 is fixedly installed on the bottom surface of the shakeout platform 14 through a bearing seat, a cylindrical gear 28 is installed at the end head of one end of the fixing shaft 27, a worm 29 is fixed on one side, corresponding to the cylindrical gear 28, of the shakeout platform 14 through the bearing seat, one end of the worm.
The shakeout platform 14 inclines at an angle of 30 degrees with the horizontal plane, the shakeout platform 14 is connected with the feeding guide plate 15 and one end side is higher than the side of connecting the discharging guide plate 16, the upper portion of the horizontal plate 21 between two adjacent groups of sleeves 23 is provided with a roller 41, and the outer side of the roller 41 is annularly sleeved with a roller 42.
The inside both sides of 2 inside sides of shakeout fill are fixed with spray pipe 51 respectively, and spray pipe 51 one end side passes through the pipe connection water pump 52 delivery port, and the water pump 52 water inlet passes through pipe connection water tank 53, and water tank 53 and water pump 52 are installed in device base 1 side, and water pump 52 electric connection control electronic box 4.
The utility model provides a cylinder head casting production is with knockout device, theory of operation:
the sand box that the pouring was accomplished enters into knockout platform 14 through feeding guide 15, knockout platform 14 is fixed in inside knockout fill 2, knockout fill 2 side-mounting has vibrating motor 3, vibrating motor 3 electric connection control electronic box 4, control electronic box 4 external power supply control vibrating motor 3 work, the sand box makes the molding sand that depends on the casting surface drop under knockout platform 14 vibration, the molding sand that drops off falls into on defeated sand track 13 through knockout fill 2 and transports knockout fill 2, the casting moves down along knockout platform 14 slope face on knockout platform 14, the removal in-process is through the beat of rapping hammer 24, reduce the adsorption capacity of casting surface molding sand, the casting that the knockout was accomplished is discharged through ejection of compact guide 16, increase the knockout effect, increase knockout efficiency.
As shown in fig. 4; dust absorption lid 61 is installed on 2 upper portions of shakeout fill, and dust absorption lid 61 upper portion has fan 62 air intake through the pipe connection, and fan 62 air outlet is connected with guide duct 63 one end, and the guide duct 63 other end is located inside water tank 53, and fan 62 is installed and is passed through electric connection control electronic box 4 in device base 1 one side, connects the dust absorption lid through the fan, absorbs the dust that the shakeout in-process produced inside the water tank, avoids the dust to spread to the air.
The double-layer filter screen plate 64 is arranged at one end, located inside the water tank 53, of the air guide pipe 63, and the spongy cushion 65 is filled between the double-layer filter screen plate 64, so that absorbed dust is prevented from falling into the water tank, and the dust is convenient to clean.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a cylinder head casting production is with knockout device which characterized in that: the device comprises a device base (1), a shakeout hopper (2), a vibrating motor (3) and a control electric box (4), wherein eight groups of damping springs (12) are fixedly arranged on two sides of the upper part of the device base (1) respectively, eight groups of the damping springs (12) are fixedly provided with the shakeout hopper (2) at the upper end, a sand conveying crawler (13) is arranged on the upper part of the device base (1), the shakeout hopper (2) is positioned on the upper part of the sand conveying crawler (13), the vibrating motor (3) is fixedly arranged on the side surfaces of two sides of the shakeout hopper (2) respectively, the vibrating motor (3) is electrically connected with the control electric box (4), the control electric box (4) is arranged on one side of the device base (1), the shakeout platform (14) is arranged on the upper end of the shakeout hopper (2), and the two sides of the shake,
the shakeout platform (14) is of a plate-shaped structure formed by cross welding of a plurality of equal-length horizontal plates (21) and vertical plates (22), the ends of the horizontal plates (21) and the vertical plates (22) are welded on the side surface of a sleeve (23), a knocking hammer (24) is installed inside the sleeve (23), a hard rubber sleeve (25) is sleeved on the upper end of the knocking hammer (24) in a sleeved mode, the lower end of the knocking hammer (24) is connected with a cam (26), the cam (26) is fixedly installed on a fixed shaft (27), the fixed shaft (27) is fixedly installed on the bottom surface of the shakeout platform (14) through a bearing seat, a cylindrical gear (28) is installed at one end of the fixed shaft (27), a worm (29) is fixed on one side, corresponding to the cylindrical gear (28), of the shakeout platform (14), and one end of the worm (29) is located outside a shakeout hopper (2) and is connected with, the driving motor (30) is fixed on the device base (1).
2. The knockout device for cylinder head casting production according to claim 1, wherein: shakeout platform (14) and horizontal plane slope 30 degrees angles, shakeout platform (14) are connected feeding baffle (15) one end side and are higher than and connect ejection of compact baffle (16) one end side, and adjacent two sets of roller (41) are installed on horizontal plate (21) upper portion between sleeve (23), roller (41) outside ring cover has cylinder (42).
3. The knockout device for cylinder head casting production according to claim 1, wherein: the sand shakeout hopper (2) inside both sides are fixed with spray pipe (51) respectively, spray pipe (51) one end side is through pipe connection water pump (52) delivery port, water pump (52) water inlet passes through pipe connection water tank (53), install in device base (1) side water tank (53) and water pump (52), water pump (52) electric connection control electronic box (4).
4. The knockout device for cylinder head casting production according to claim 3, wherein: the device is characterized in that a dust collection cover (61) is installed on the upper portion of the sand shakeout hopper (2), the upper portion of the dust collection cover (61) is connected with an air inlet of a fan (62) through a pipeline, an air outlet of the fan (62) is connected with one end of an air guide pipe (63), the other end of the air guide pipe (63) is located inside a water tank (53), and the fan (62) is installed on one side of a device base (1) and is electrically connected with a control electric box (4).
5. The knockout device for cylinder head casting production according to claim 4, wherein: the air guide pipe (63) is positioned at one end inside the water tank (53) and is provided with double-layer filter screen plates (64), and sponge cushions (65) are filled between the double-layer filter screen plates (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131880.0A CN109175317B (en) | 2018-09-27 | 2018-09-27 | Knockout device is used in cylinder head casting production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811131880.0A CN109175317B (en) | 2018-09-27 | 2018-09-27 | Knockout device is used in cylinder head casting production |
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| Publication Number | Publication Date |
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| CN109175317A CN109175317A (en) | 2019-01-11 |
| CN109175317B true CN109175317B (en) | 2020-06-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633199A (en) * | 2020-06-11 | 2020-09-08 | 含山县大力精密机械有限公司 | Sand shakeout device and method for casting process of automobile cylinder cover |
| CN112264602B (en) * | 2020-10-23 | 2021-05-07 | 浙江昌隆石化设备有限公司 | Manufacturing process of cylinder cover of air conditioner compressor of new energy automobile |
| CN113333718B (en) * | 2021-06-11 | 2022-10-18 | 河北中和铸造有限公司 | Automatic shakeout machine for casting |
| CN116393678B (en) * | 2023-06-07 | 2023-08-01 | 泰州市锦峰新材料科技有限公司 | Metal casting shakeout treatment equipment |
| CN117548653B (en) * | 2024-01-11 | 2024-04-02 | 江苏正良船用附件有限公司 | Casting molding shakeout post-treatment equipment for low-noise centrifugal pump body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385549A (en) * | 1999-04-17 | 2003-08-27 | Yoshitaka Aoyama | Casting sand shake-out apparatus |
| WO2004082870A1 (en) * | 2003-03-17 | 2004-09-30 | Yoshitaka Aoyama | Device for removing sand from casting |
| CN201511114U (en) * | 2009-08-31 | 2010-06-23 | 无锡蠡湖叶轮制造有限公司 | Vibrating desanding equipment |
| CN105499547A (en) * | 2015-12-24 | 2016-04-20 | 重庆代发铸造有限公司 | Casting shakeout machine |
-
2018
- 2018-09-27 CN CN201811131880.0A patent/CN109175317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385549A (en) * | 1999-04-17 | 2003-08-27 | Yoshitaka Aoyama | Casting sand shake-out apparatus |
| WO2004082870A1 (en) * | 2003-03-17 | 2004-09-30 | Yoshitaka Aoyama | Device for removing sand from casting |
| CN201511114U (en) * | 2009-08-31 | 2010-06-23 | 无锡蠡湖叶轮制造有限公司 | Vibrating desanding equipment |
| CN105499547A (en) * | 2015-12-24 | 2016-04-20 | 重庆代发铸造有限公司 | Casting shakeout machine |
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Effective date of registration: 20230424 Address after: 230000 Dongfang Jingyuan H6-601, Chaohu City, Hefei City, Anhui Province Patentee after: Hefei Xincai Machinery Parts Co.,Ltd. Address before: 238100 Zheng Caigang, Qingxi Town, Hanshan County, Ma'anshan City, Anhui Province Patentee before: HANSHAN QUANXING INTERNAL COMBUSTION ENGINE FITTINGS Co.,Ltd. |
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Effective date of registration: 20240520 Address after: 272000 Xiping Industrial Park, Weishan County, Jining City, Shandong Province Patentee after: Shandong Guoyao Metal Technology Co.,Ltd. Country or region after: China Address before: 230000 Dongfang Jingyuan H6-601, Chaohu City, Hefei City, Anhui Province Patentee before: Hefei Xincai Machinery Parts Co.,Ltd. Country or region before: China |
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Denomination of invention: A sand drop device for cylinder head casting production Granted publication date: 20200605 Pledgee: Shandong Weishan Rural Commercial Bank Co.,Ltd. Pledgor: Shandong Guoyao Metal Technology Co.,Ltd. Registration number: Y2024980018040 |