CN112873490B - Sand blasting opening solidification blocking prevention equipment for core making machine - Google Patents
Sand blasting opening solidification blocking prevention equipment for core making machine Download PDFInfo
- Publication number
- CN112873490B CN112873490B CN202110237339.3A CN202110237339A CN112873490B CN 112873490 B CN112873490 B CN 112873490B CN 202110237339 A CN202110237339 A CN 202110237339A CN 112873490 B CN112873490 B CN 112873490B
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- China
- Prior art keywords
- sand
- sand blasting
- making machine
- cleaning device
- fixedly connected
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- 238000005488 sandblasting Methods 0.000 title claims abstract description 32
- 230000000903 blocking effect Effects 0.000 title claims abstract description 11
- 238000007711 solidification Methods 0.000 title claims abstract description 10
- 230000008023 solidification Effects 0.000 title claims abstract description 10
- 230000002265 prevention Effects 0.000 title abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 abstract description 26
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention provides a sand blasting port solidification blocking prevention device for a core making machine, wherein a metal sheet is arranged inside a fixed plate and on the lower side of a sliding groove, the rear end of a driving gear and the rear part of a supporting rod are connected with an auxiliary wheel, the auxiliary wheel is connected with a rotating disc through a belt, the middle part of a rope is connected with a guide plate in the sliding groove, the lower part of the guide plate is provided with a guide column corresponding to the sliding groove, the front end of the guide column is connected with a cleaning device, and the upper part of the driving gear is connected with a toothed plate. Drive gear drives the pinion rack and moves to the outside, the guide post drives cleaning device and is close to sand blasting unit's sandblast mouth, it is spacing through the level of spout, thereby guarantee cleaning rod on the cleaning device and sand blasting unit's sandblast mouth level grafting, and contact through guide post and sheetmetal, thereby reach automatic control cleaning device internal drive, this structure reaches automatic cleaning sand blasting unit's sandblast mouth, thereby prevent that the part is heated and will solidify by the core sand of shooting the sand pore wall, block up the shooting passageway gradually.
Description
Technical Field
The invention belongs to the technical field of core making machines, and particularly relates to solidification blockage prevention equipment for a sand blasting port of a core making machine.
Background
The core making machine is a general name of core shooters and shell core machines, and is equipment for making a precoated sand shell core by adopting a hot core box process. The working process of the core making machine is completed by filling sand and compacting simultaneously, and the core making machine is immediately hardened in a hot core box, so that the labor intensity is reduced, the operation is flexible, light and easy to master, the temperature can be automatically controlled by adopting electric heating, the working place is easy to keep clean, and conditions are created for mechanization and automation of the core making process. Only a dozen seconds to dozens of seconds are needed for one cycle period, and the sand core for casting can be produced.
The existing core making machine has the advantages that when a sand shooting hopper presses a mold, the heat of the mold can be conducted to the surface of the sand shooting hopper, the mold is contacted with the mold, when precoated sand is shot into the mold through a sand shooting hole, a part of core sand on the wall of the sand shooting hole can be solidified by being heated, and can be bonded on the wall of the sand shooting hole, the time is long, the sand sticking on the wall of the sand shooting hole becomes thick, the sand shooting hole can be made to be small, a sand shooting channel is gradually blocked, the machine is stopped to clean the sand shooting hole one by one at the moment, part of the sand shooting hopper is also cooled by water, residual sand is adhered, and the sand shooting hole of the sand shooting hopper must be cleaned.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a device for preventing solidification and blockage of a sand blasting port for a core making machine is provided, so as to achieve the purpose of higher practical value.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sand blasting port solidification blocking prevention device for a core making machine, which is achieved by the following specific technical means:
a sand blasting port solidification blocking prevention device for a core making machine comprises a base, wherein supporting rods are fixedly connected to the left side and the right side of the upper portion of the base, a fixing plate is fixedly connected to the middle of each supporting rod, a sliding groove is formed in the upper portion of the fixing plate, a metal sheet is arranged inside the fixing plate and on the lower side of the sliding groove, a guide wheel is arranged on the inner side of the rear portion of the fixing plate, a driving gear is rotatably connected to the lower portion of the fixing plate, an auxiliary wheel is fixedly connected to the rear end of the driving gear and on the rear portion of each supporting rod, a rotary disc is rotatably connected to the auxiliary wheel through a belt, a rope is arranged on the outer side of the rotary disc, a guide plate is fixedly connected to the middle of the rope and in the sliding groove, a guide column corresponding to the sliding groove is arranged on the lower portion of the guide plate, a cleaning device is fixedly connected to the front end of the guide column, a toothed plate is connected to the upper portion of the driving gear in a meshed manner, and a sand blasting device is fixedly connected to the upper portion of the toothed plate, the upper portion downside of bracing piece and the middle part of base all are provided with the telescopic link, and equal fixedly connected with core making mould on the telescopic link, bracing piece upper portion are provided with air pump and collecting box.
Further, the metal sheet is arranged on the horizontal section in the sliding groove, so that normal cleaning of the cleaning device and the sand blasting device is guaranteed.
Further, the rope twines on the carousel, and the number of winding turns is no less than the round to the wall avoids the irregular removal of deflector to lead to rope tension undersize, and the rope breaks away from the carousel.
Furthermore, the rear part of carousel is provided with the gyro wheel that corresponds with the auxiliary wheel, and connects through the belt between it.
Furthermore, the sand blasting device is provided with a nozzle, the cleaning device is provided with a cleaning rod corresponding to the nozzle, the cleaning rod is hollow and is connected with the collecting box, the collecting box is internally provided with an air extracting device, and the driving device in the cleaning device can also drive the fan blades to replace the air extracting device arranged in the collecting box.
Furthermore, a driving device for driving the cleaning rod is arranged on the cleaning device.
Compared with the prior art, the invention has the following beneficial effects:
1. drive the pinion rack through drive gear and move to the inboard, the pinion rack drives sand blasting unit and makes the core mould and laminate mutually, and drive gear drives the carousel through the auxiliary wheel and rotates, and the carousel drives the deflector through the rope and removes, and the deflector carries out spacing removal through the guide post, and the guide post drives cleaning device and breaks away from sand blasting unit's sandblast mouth.
2. Drive gear drives the pinion rack and moves to the outside, the guide post drives cleaning device and is close to sand blasting unit's sandblast mouth, it is spacing through the level of spout, thereby guarantee cleaning rod on the cleaning device and sand blasting unit's sandblast mouth level grafting, and contact through guide post and sheetmetal, thereby reach automatic control cleaning device internal drive, this structure reaches automatic cleaning sand blasting unit's sandblast mouth, thereby prevent that the part is heated and will solidify by the core sand of shooting the sand pore wall, block up the shooting passageway gradually.
3. The diameter through the carousel is greater than the auxiliary wheel, and the runner of carousel rear side is unanimous with the auxiliary wheel to enlarge the displacement through the displacement, further guarantee cleaning device break away from in advance and laminate cleaning device's sandblast mouth, the aspect of this structure cleaning device accomodate and clear up.
Drawings
FIG. 1 is a schematic view of the overall front structure of the present invention;
FIG. 2 is a schematic view of the kinematic structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of a portion of the fixation plate of FIG. 1 according to the present invention;
FIG. 4 is a left side view of the right side sand blasting device of the present invention;
FIG. 5 is a rear view of a related structure of the fixing plate of the present invention;
FIG. 6 is a schematic view of the kinematic structure of FIG. 5 according to the present invention;
fig. 7 is a rear sectional view of a related structure of a fixing plate of the present invention.
In the figure: the device comprises a base 1, a supporting rod 2, a fixing plate 201, a sliding chute 202, a metal sheet 203, a guide wheel 204, a driving gear 3, an auxiliary wheel 301, a rotary table 4, a rope 401, a guide plate 5, a guide column 501, a cleaning device 502, a toothed plate 6, a sand blasting device 7, an expansion rod 8, a core making mold 9, an air pump 10 and a collecting box 11.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 7: the invention provides a sand blasting port solidification blocking prevention device for a core making machine, which comprises the following specific use modes and functions: the utility model provides a solidification jam equipment is prevented with sandblast mouth to core making machine, which comprises a base 1, the equal fixedly connected with bracing piece 2 in base 1's the upper portion left and right sides, middle part fixedly connected with fixed plate 201 of bracing piece 2, spout 202 has been seted up on the upper portion of fixed plate 201, the inside of fixed plate 201 and be provided with sheetmetal 203 at the downside of spout 202, the rear portion inboard of fixed plate 201 is provided with leading wheel 204, on the bracing piece 2 and rotate in the lower part of fixed plate 201 and be connected with drive gear 3, drive gear 3's rear end and at bracing piece 2's rear portion fixedly connected with auxiliary wheel 301, auxiliary wheel 301 rotates through the belt and is connected with carousel 4, the outside of carousel 4 is provided with rope 401, the rear portion of carousel 4 is provided with the gyro wheel that corresponds with auxiliary wheel 301, and connect through the belt between it. The middle part of the rope 401 is fixedly connected with a guide plate 5 in the chute 202, the lower part of the guide plate 5 is provided with a guide column 501 corresponding to the chute 202, the front end of the guide column 501 is fixedly connected with a cleaning device 502, and the cleaning device 502 is provided with a driving device for driving a cleaning rod.
Rope 401 is wound on turntable 4 for at least one turn so that the tension of rope 401 is too low due to the irregular movement of wall free guide plate 5 and rope 401 is disengaged from turntable 4. The upper portion meshing of drive gear 3 is connected with pinion rack 6, and the upper portion fixedly connected with sand blasting unit 7 of pinion rack 6, sheetmetal 203 set up the horizontal segment in spout 202 to guarantee cleaning device 502 and sand blasting unit 7's normal clearance. The upper portion downside of bracing piece 2 and base 1's middle part all are provided with telescopic link 8, equal fixedly connected with system core mould 9 on the telescopic link 8, 2 upper portions of bracing piece are provided with air pump 10 and collecting box 11, be provided with the spout on the sand blasting unit 7, be provided with the clearance pole that corresponds with this spout on the cleaning device 502, and this clearance pole is cavity and links to each other with collecting box 11, be provided with air exhaust device in the collecting box 11, drive arrangement in the cleaning device 502 also can drive the air exhaust device that sets up in flabellum replacement collecting box 11 in addition.
The working principle is as follows: at the during operation, drive pinion rack 6 through drive gear 3 and remove to the inboard, pinion rack 6 drives sand blasting unit 7 and makes core mould 9 and laminate mutually, simultaneously, as shown in fig. 5: drive gear 3 passes through auxiliary wheel 301 and drives carousel 4 and rotate, and carousel 4 drives deflector 5 through rope 401 and removes, and deflector 5 carries out spacing removal through guide post 501, and guide post 501 drives cleaning device 502 and breaks away from the sandblast mouth of sand blasting unit 7.
Similarly, drive gear 3 and drive pinion rack 6 and remove to the outside, guide post 501 drives cleaning device 502 and is close to the sandblast mouth of sand blasting unit 7, it is spacing through the level of spout 202, thereby guarantee that the sandblast mouth level of cleaning rod and sand blasting unit 7 on the cleaning device 502 is pegged graft, and contact through guide post 501 and sheetmetal 203, thereby reach automatic control cleaning device 502 internal drive, this structure reaches the sandblast mouth of automatic cleaning sand blasting unit 7, thereby prevent that the part is heated and will be solidified by the core sand of shooting the sand pore wall, block up the sand shooting passageway gradually.
By the diameter of the turntable 4 being larger than the auxiliary wheel 301, as shown in fig. 5: the runner of carousel 4 rear side is unanimous with auxiliary wheel 301 to through the displacement amplification displacement, further guarantee that cleaning device 502 breaks away from in advance and the sand jet of laminating cleaning device 7, the storage and the clearance of this structural aspect cleaning device 502.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (6)
1. The utility model provides a sand blasting opening prevents solidification and blocks up equipment for core making machine, includes base (1), its characterized in that: the left side and the right side of the upper portion of the base (1) are fixedly connected with supporting rods (2), the middle portion of each supporting rod (2) is fixedly connected with a fixing plate (201), a sliding groove (202) is formed in the upper portion of each fixing plate (201), a metal sheet (203) is arranged inside each fixing plate (201) and on the lower side of each sliding groove (202), a guide wheel (204) is arranged on the inner side of the rear portion of each fixing plate (201), a driving gear (3) is rotatably connected to the upper portion of each supporting rod (2) and on the lower portion of each fixing plate (201), an auxiliary wheel (301) is fixedly connected to the rear end of each driving gear (3) and on the rear portion of each supporting rod (2), each auxiliary wheel (301) is rotatably connected with a turntable (4) through a belt, a rope (401) is arranged on the outer side of each turntable (4), a guide plate (5) is fixedly connected to the middle portion of each rope (401) and in each sliding groove (202), guide columns (501) corresponding to the sliding grooves (202) are arranged on the lower portion of each guide plate (5), the front end fixedly connected with cleaning device (502) of guide post (501), the meshing of the upper portion of drive gear (3) is connected with pinion rack (6), the upper portion fixedly connected with sand blasting unit (7) of pinion rack (6), the upper portion downside of bracing piece (2) and the middle part of base (1) all are provided with telescopic link (8), equal fixedly connected with system core mould (9) on telescopic link (8), bracing piece (2) upper portion is provided with air pump (10) and collecting box (11).
2. The sand-blast opening solidification-prevention blocking equipment for the core making machine as claimed in claim 1, wherein: the metal sheet (203) is arranged in a horizontal section of the sliding groove (202).
3. The sand-blast opening solidification-prevention blocking equipment for the core making machine as claimed in claim 1, wherein: the rope (401) is wound on the rotary disc (4), and the number of winding turns is not less than one.
4. The sand-blast opening solidification-prevention blocking equipment for the core making machine as claimed in claim 1, wherein: the rear part of the turntable (4) is provided with a roller corresponding to the auxiliary wheel (301), and the roller is connected with the auxiliary wheel (301) through a belt.
5. The sand-blast opening solidification-prevention blocking equipment for the core making machine as claimed in claim 1, wherein: the sand blasting device (7) is provided with a nozzle, the cleaning device (502) is provided with a cleaning rod corresponding to the nozzle, the cleaning rod is hollow and is connected with the collecting box (11), and the collecting box (11) is internally provided with an air exhaust device.
6. The sand-blast opening solidification-prevention blocking equipment for the core making machine as claimed in claim 5, wherein: the cleaning device (502) is provided with a driving device for driving the cleaning rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237339.3A CN112873490B (en) | 2021-03-03 | 2021-03-03 | Sand blasting opening solidification blocking prevention equipment for core making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237339.3A CN112873490B (en) | 2021-03-03 | 2021-03-03 | Sand blasting opening solidification blocking prevention equipment for core making machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112873490A CN112873490A (en) | 2021-06-01 |
| CN112873490B true CN112873490B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110237339.3A Active CN112873490B (en) | 2021-03-03 | 2021-03-03 | Sand blasting opening solidification blocking prevention equipment for core making machine |
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| Country | Link |
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| CN (1) | CN112873490B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347820A (en) * | 2008-08-22 | 2009-01-21 | 苏州明志科技有限公司 | Cold box molding core making machine |
| WO2013175813A1 (en) * | 2012-05-23 | 2013-11-28 | 新東工業株式会社 | Core-making device, and core-making method |
| CN108907113A (en) * | 2018-08-23 | 2018-11-30 | 浙江振兴铸造有限公司 | A kind of casting mold sand core high efficiency manufacture equipment |
| CN111168017A (en) * | 2019-12-06 | 2020-05-19 | 浙江省机电设计研究院有限公司 | Iron-shaped sand-shooting hole residual sand cleaning device and cleaning method thereof capable of replacing multiple ejector plates |
| CN112223653A (en) * | 2020-10-19 | 2021-01-15 | 平潭志纳科技有限公司 | Injection molding machine capable of preventing nozzle from being blocked |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189228B (en) * | 2011-03-23 | 2012-10-31 | 苏州明志科技有限公司 | Nozzle cleaning mechanism |
| CN202356588U (en) * | 2011-11-24 | 2012-08-01 | 芜湖火龙铸造有限公司 | Sand removing device for shooting nozzles of hot-box core shooter |
| DE102012000450A1 (en) * | 2012-01-13 | 2012-09-06 | Daimler Ag | Nozzle element cleaning device for device for injecting molding material in core mold for forming casting core, has supply portions which comprise feed channels, bores and rinsing medium terminal connected with distribution channels |
| CN110842151A (en) * | 2018-08-20 | 2020-02-28 | 科华控股股份有限公司 | Multi-head cleaning device for cleaning residual sand in sand shooting hole of core making machine |
| CN109290528B (en) * | 2018-10-18 | 2019-10-15 | 西峡县西泵特种铸造有限公司 | A kind of core making machine |
| CN211248228U (en) * | 2019-12-28 | 2020-08-14 | 山东省三鼎汽车配件有限公司 | Vertical core shooting machine with cleaning mechanism |
| CN112108614A (en) * | 2020-09-19 | 2020-12-22 | 安翔 | Core shooting machine with automatic sand cleaning mechanism |
-
2021
- 2021-03-03 CN CN202110237339.3A patent/CN112873490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101347820A (en) * | 2008-08-22 | 2009-01-21 | 苏州明志科技有限公司 | Cold box molding core making machine |
| WO2013175813A1 (en) * | 2012-05-23 | 2013-11-28 | 新東工業株式会社 | Core-making device, and core-making method |
| CN108907113A (en) * | 2018-08-23 | 2018-11-30 | 浙江振兴铸造有限公司 | A kind of casting mold sand core high efficiency manufacture equipment |
| CN111168017A (en) * | 2019-12-06 | 2020-05-19 | 浙江省机电设计研究院有限公司 | Iron-shaped sand-shooting hole residual sand cleaning device and cleaning method thereof capable of replacing multiple ejector plates |
| CN112223653A (en) * | 2020-10-19 | 2021-01-15 | 平潭志纳科技有限公司 | Injection molding machine capable of preventing nozzle from being blocked |
Non-Patent Citations (1)
| Title |
|---|
| 插入式水冷射嘴在热芯盒制芯中的应用;巩玉会等;《铸造》;20040922(第09期);全文 * |
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| CN112873490A (en) | 2021-06-01 |
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Effective date of registration: 20220712 Address after: 473400 Tanghe County Industrial Park, Nanyang City, Henan Province Applicant after: Tanghe Zhuoyue gearbox Co.,Ltd. Address before: No. 518, Xianghai Road, Huangdao District, Qingdao City, Shandong Province 266000 Applicant before: Li Xueliang |
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