CN110052586B - Sand shooting plate for precoated sand hot core box and use method thereof - Google Patents
Sand shooting plate for precoated sand hot core box and use method thereof Download PDFInfo
- Publication number
- CN110052586B CN110052586B CN201910366962.1A CN201910366962A CN110052586B CN 110052586 B CN110052586 B CN 110052586B CN 201910366962 A CN201910366962 A CN 201910366962A CN 110052586 B CN110052586 B CN 110052586B
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- sand
- water
- sand shooting
- shooting plate
- bolt
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- 239000004576 sand Substances 0.000 title claims abstract description 181
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000000465 moulding Methods 0.000 claims description 15
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003110 molding sand Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 210000002489 tectorial membrane Anatomy 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a sand shooting plate for a precoated sand hot core box and a use method thereof, and the sand shooting plate comprises a sand shooting plate body, a core making machine hopper, a hollow bolt and a fastening screw, wherein the sand shooting plate body is connected with the core making machine hopper through the fastening screw, a circulating water through hole is formed in the sand shooting plate body, a plug is arranged at the water through hole, a water pipe is arranged at the water inlet and the water outlet of the water through hole, a sand shooting port is formed in the sand shooting plate body, an internal thread is arranged in the sand shooting port, the hollow bolt comprises a circular boss, a bolt body, an external thread, a sand shooting entering channel and a sand outlet, the bottom of the circular boss is provided with the bolt body, the external side wall of the bolt body is provided with the external thread, the bottom of the bolt body is provided with the sand outlet, and a plurality of sand shooting entering channels are communicated with the top of the sand outlet. The invention solves the problem of insufficient pressure of the coated sand when the coated sand is wrapped by the coated sand once, and solves the problem of overflow of the coated sand into the surface of the core box.
Description
Technical Field
The invention belongs to the technical field of casting core making equipment, and particularly relates to a sand shooting plate for a precoated sand hot core box and a use method thereof.
Background
At present, for the precoated sand shooting process, the mixed sand materials directly enter the core box through the sand shooting plate, after sand shooting is completed, a part of sand materials can remain in the holes or the inside of the sand shooting plate, because the sand shooting plate contacts with the core box at about 220 ℃ and works, the self temperature can reach 80-120 ℃ under the condition that the contact time is long enough due to the heat conducting property of the sand shooting plate material, the softening temperature of the sand material polymer is 90-110 ℃ (primary curing form), under the condition that the sand material primary curing condition is formed, the sand materials contacting with high temperature inside the sand shooting plate can undergo curing reaction to form polymers with different sizes, and then the polymers which are cured by re-shooting enter the core box cavity can cause sand core defects of gaps and untight tissues on the surface of the sand core.
The existing sand shooting plate structure of the company is as follows: 6-7, the sand shooting plate comprises a sand shooting plate body (11), a core making machine hopper (12), fastening screws (14), water holes (15), plugs (16), water pipes (17), a cover plate (1), supporting blocks (2) and fastening screws II (3), wherein sand shooting openings (18) are formed in the sand shooting plate body (11), the core making machine hopper (12) is fixedly connected to the sand shooting plate body (11) through the fastening screws (14), the cover plate (1) is arranged on one side of the core making machine hopper (12), a plurality of supporting blocks (2) are arranged at the bottom of the cover plate (1), and the fastening screws II (3) penetrate through the cover plate (1) and the supporting blocks (2) to be fixedly connected to the sand shooting plate body (11); in actual production process, setting up of apron is for tectorial membrane sand advances pressure and the velocity of flow of incident sand mouth, in order to satisfy the compactness that different structures, big or small core box die cavity were filled the type, need timely regulation apron and penetrate the distance between the sand mouth, further need change the height of supporting shoe, debugging at every time just need dismantle apron and supporting shoe, waste time and energy, and debugging at every time does not have any rule to circulate, has always puzzled first line operating personnel.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a sand shooting plate for a coated sand hot core box and a use method thereof, which solve the problem that the pressure of coated sand is insufficient when sand is shot once to be wrapped and clamped, simultaneously solve the problem that coated sand overflows into the surface of the core box, and also avoid the problem that sand shooting holes are easy to crust and block, thereby saving coated sand, reducing cost and improving production efficiency.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a tectorial membrane sand hot core is sand shooting board for box, includes sand shooting board body, core making machine hopper, hollow bolt, fastening screw, the sand shooting board body passes through fastening screw and connects core making machine hopper, is equipped with circulation limbers on the sand shooting board body, and limbers mouth portion is equipped with the end cap, and limbers advances, apopore department is equipped with the water pipe, is equipped with the sand mouth on the sand shooting board body, is equipped with the internal thread in the sand mouth, is equipped with hollow bolt in the sand mouth, hollow bolt includes circular boss, bolt body, external screw thread, shoots sand entering passageway, goes out the sand hole, circular boss bottom is equipped with the bolt body, and bolt body outside lateral wall is equipped with the external screw thread, bolt body bottom is equipped with out the sand hole, goes out sand hole top intercommunication and is equipped with a plurality of sand entering passageway.
Preferably, the circular boss is internally provided with an inner hexagonal groove, and a user can put the circular boss into the inner hexagonal groove through an inner hexagonal wrench, so that the hollow bolt can conveniently rotate into the incident sand hole.
Preferably, the circular boss edge is provided with a clamping position, and a user clamps the clamping position through a loose end wrench, so that the hollow bolt can conveniently rotate into the incident sand hole.
Preferably, the bottom of the bolt body is provided with a chamfer, and the chamfer facilitates the entering of the bolt body into the sand inlet.
Further, the application method of the sand shooting plate for the precoated sand hot core box comprises the following steps:
1) The sand shooting plate body is connected with a core making machine hopper through a fastening screw;
2) The water inlet and outlet holes of the side wall of the sand shooting plate body are connected with water pipes, the water pipes are externally connected with circulating cooling water, and the temperature of the cooling water is 10-30 ℃;
3) The molding process of the precoated sand adopts green sand vertical line flaskless molding, and the green sand vertical line flaskless molding adopts a molding template as an integral template, and has the molding requirement: sand injection pressure is 0.2-0.35MPa, and extrusion pressure is 0.7-1.2MPa;
4) The hollow bolt rotates into the incident sand port through external threads at the bottom, the heights of the sand injection inlet channel and the sand injection port are adjusted through spiral screwing, and the sand injection pressure of the precoated sand is primarily determined;
5) And (5) checking the molding sand requirement, and locking the sand shooting pressure of the precoated sand.
Compared with the prior art, the invention has the beneficial effects that:
1) The hollow bolt rotates into the incident sand port through the external thread at the bottom, the relative height of the sand injection inlet channel and the sand injection port is timely adjusted through screw screwing, the sand injection pressure of the precoated sand is timely adjusted, the problem that the precoated sand overflows into the surface of the core box due to overlarge sand injection pressure is prevented, the problem that the sand injection hole is easy to crust and block is further prevented, the precoated sand is saved, the cost is reduced, and the production efficiency is improved;
2) The circular boss in the hollow bolt is arranged to block the precoated sand to a certain extent, so that the direction and the flow speed of entering the channel from the precoated sand into the incident sand are changed, the pressure of the shot sand is effectively adjusted, and the injection sand filling is convenient to test.
Drawings
FIG. 1 is a schematic diagram of a sand shooting plate structure for a precoated sand hot core box of the present invention;
FIG. 2 is a cross-sectional view of a sand shooting plate A-A for a precoated sand hot core box of the present invention;
FIG. 3 is a top view of a hollow bolt in a shooting plate for a precoated sand hot core box of the present invention;
FIG. 4 is a cross-sectional view of a hollow bolt in a shooting plate for a precoated sand hot core box of the present invention;
FIG. 5 is a top view of another embodiment of a sand shooting plate hollow bolt for a precoated sand hot core box of the present invention;
FIG. 6 is a schematic view of a prior art sand shooting plate structure;
FIG. 7 is a cross-sectional view of a prior art shooting plate B-B;
in the figure: the sand shooting device comprises an 11-sand shooting plate body, a 12-core making machine hopper, a 13-hollow bolt, a 14-fastening screw, a 15-water through hole, a 16-plug, a 17-water pipe, an 18-sand shooting opening, a 1-cover plate, a 2-supporting block, a 3-fastening screw II, a 101-round boss, a 102-bolt body, 103-external threads, a 104-sand shooting inlet channel, 105-sand shooting holes, 106-chamfers, 107-inner hexagonal grooves and 108-clamping levels.
Detailed Description
In order to facilitate understanding of those skilled in the art, the technical scheme of the present invention will be further specifically described below with reference to fig. 1 to 5.
Example 1: as shown in figures 1-4 of the drawings,
the utility model provides a tectorial membrane sand hot core is shooting plate for box, includes shooting plate body 11, core making machine hopper 12, hollow bolt 13, fastening screw 14, shooting plate body 11 passes through fastening screw 14 and connects core making machine hopper 12, be equipped with circulation water hole 15 on the shooting plate body 11, the water hole 15 oral area is equipped with end cap 16, water hole 15 advances, apopore department is equipped with water pipe 17, be equipped with on the shooting plate body 11 and penetrate sand mouth 18, be equipped with the internal thread in penetrating sand mouth 18, be equipped with hollow bolt 13 in penetrating sand mouth 18, hollow bolt 13 includes circular boss 101, bolt body 102, external screw thread 103, penetrates sand entering channel 104, goes out sand hole 105, circular boss 101 bottom is equipped with bolt body 102, bolt body 102 outside lateral wall is equipped with external screw thread 103, bolt body 102 bottom is equipped with out sand hole 105, it is equipped with a plurality of sand entering channel 104 to go out sand hole 105 top intercommunication.
The round boss 101 is provided with a clamping position 108 at the edge, and a user clamps the clamping position through a loose end wrench, so that the hollow bolt can conveniently rotate into the incident sand hole.
The bottom of the bolt body 102 is provided with a chamfer 106, and the chamfer facilitates the entering of the bolt body into an incident sand hole.
Example 2: as shown in figure 5 of the drawings,
unlike embodiment 1, the circular boss 101 is provided with a hexagonal socket 107, and a user can put the circular boss into the hexagonal socket by using an allen wrench, so that the hollow bolt can be conveniently rotated into the sand inlet.
Example 3:
unlike embodiment 1, the sand injection inlet channels 104 are arranged in a plurality of groups by taking the bolt body 102 as the center of a circle, and the sand injection inlet channels are arranged in equal angles by taking the bolt body 102 as the center of a circle, such as 2 groups, 3 groups, 4 groups and the like of the sand injection inlet channels, the sand injection inlet channels are communicated with the sand outlet holes, and the sand injection inlet channels arranged at equal angles enable the direction of the incident sand inlet of the precoated sand to be consistent, so that the sand injection pressure of the precoated sand can be adjusted better in time.
The application method of the sand shooting plate for the precoated sand hot core box comprises the following steps:
1) The sand shooting plate body is connected with a core making machine hopper through a fastening screw;
2) The water inlet and outlet holes of the side wall of the sand shooting plate body are connected with water pipes, the water pipes are externally connected with circulating cooling water, and the temperature of the cooling water is 10-30 ℃;
3) The molding process of the precoated sand adopts green sand vertical line flaskless molding, and the green sand vertical line flaskless molding adopts a molding template as an integral template, and has the molding requirement: sand injection pressure is 0.2-0.35MPa, and extrusion pressure is 0.7-1.2MPa;
4) The hollow bolt rotates into the incident sand port through external threads at the bottom, the heights of the sand injection inlet channel and the sand injection port are adjusted through spiral screwing, and the sand injection pressure of the precoated sand is primarily determined;
5) And (5) checking the molding sand requirement, and locking the sand shooting pressure of the precoated sand.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
Claims (2)
1. The sand shooting plate for the precoated sand hot core box comprises a sand shooting plate body, a core making machine hopper, a hollow bolt and a fastening screw, and is characterized in that the sand shooting plate body is connected with the core making machine hopper through the fastening screw, a circulating water through hole is formed in the sand shooting plate body, a plug is arranged at the water through hole opening, a water pipe is arranged at the water inlet and the water outlet of the water through hole, a sand shooting opening is formed in the sand shooting plate body, an internal thread is arranged in the sand shooting opening, a hollow bolt is arranged in the sand shooting opening, the hollow bolt comprises a circular boss, a bolt body, an external thread, a sand shooting entering channel and a sand outlet, the bottom of the circular boss is provided with the bolt body, the external thread is arranged on the outer side wall of the bolt body, the sand outlet is formed in the bottom of the bolt body, and a plurality of sand shooting entering channels are communicated at the top of the sand outlet;
an inner hexagonal groove is formed in the circular boss; a clamping flat is arranged at the edge of the circular boss; the bottom of the bolt body is provided with a chamfer; the sand injection inlet channels are arranged in a plurality of groups by taking the bolt body as the center of a circle, and are arranged at equal angles by taking the bolt body as the center of a circle, and are communicated with the sand outlet holes.
2. The application method of the sand shooting plate for the precoated sand hot core box is characterized by comprising the following steps of:
1) The sand shooting plate body is connected with a core making machine hopper through a fastening screw;
2) The water inlet and outlet holes of the side wall of the sand shooting plate body are connected with water pipes, the water pipes are externally connected with circulating cooling water, and the temperature of the cooling water is 10-30 ℃;
3) The molding process of the precoated sand adopts green sand vertical line flaskless molding, and the green sand vertical line flaskless molding adopts a molding template as an integral template, and has the molding requirement: sand injection pressure is 0.2-0.35MPa, and extrusion pressure is 0.7-1.2MPa;
4) The hollow bolt rotates into the incident sand port through external threads at the bottom, the heights of the sand injection inlet channel and the sand injection port are adjusted through spiral screwing, and the sand injection pressure of the precoated sand is primarily determined;
5) And (5) checking the molding sand requirement, and locking the sand shooting pressure of the precoated sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366962.1A CN110052586B (en) | 2019-05-05 | 2019-05-05 | Sand shooting plate for precoated sand hot core box and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910366962.1A CN110052586B (en) | 2019-05-05 | 2019-05-05 | Sand shooting plate for precoated sand hot core box and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110052586A CN110052586A (en) | 2019-07-26 |
| CN110052586B true CN110052586B (en) | 2024-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910366962.1A Active CN110052586B (en) | 2019-05-05 | 2019-05-05 | Sand shooting plate for precoated sand hot core box and use method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN110052586B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482915U (en) * | 2009-09-07 | 2010-05-26 | 芜湖瑞立达汽车模具制作有限公司 | Core making and sand shooting device of hot core box |
| DE102012016859A1 (en) * | 2012-08-25 | 2013-01-31 | Daimler Ag | Shooting unit useful for core shooting machine for producing sand cores for metal casting, comprises shooting head filled with molding material containing sand, through which core mold is filled with molding material, and conveying device |
| CN203426387U (en) * | 2013-08-26 | 2014-02-12 | 苏州明志科技有限公司 | Quantitative sand addition device for core-making machine |
| DE202014007680U1 (en) * | 2014-09-20 | 2014-11-28 | Klaus Adelhardt | Universal Shooting Plate Device for Shooting Plates of Core Shooting Machines |
| CN104325094A (en) * | 2014-11-20 | 2015-02-04 | 重庆新红旗缸盖制造有限公司 | Full-automatic series core-making center of inorganic precoated sand |
| CN204194726U (en) * | 2014-09-22 | 2015-03-11 | 侯马市晋烽机械铸造有限公司 | A kind of rapid-mounted frock of iron-mould coated sand shooting machine |
| CN205200464U (en) * | 2015-12-30 | 2016-05-04 | 广西玉柴机器股份有限公司 | Shooting plate subassembly of hot box |
| CN106903270A (en) * | 2015-12-22 | 2017-06-30 | 谢乐 | A kind of Novel core shooter |
| CN209849840U (en) * | 2019-05-05 | 2019-12-27 | 山东格新精工有限公司 | Sand shooting plate for precoated sand hot core box |
-
2019
- 2019-05-05 CN CN201910366962.1A patent/CN110052586B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201482915U (en) * | 2009-09-07 | 2010-05-26 | 芜湖瑞立达汽车模具制作有限公司 | Core making and sand shooting device of hot core box |
| DE102012016859A1 (en) * | 2012-08-25 | 2013-01-31 | Daimler Ag | Shooting unit useful for core shooting machine for producing sand cores for metal casting, comprises shooting head filled with molding material containing sand, through which core mold is filled with molding material, and conveying device |
| CN203426387U (en) * | 2013-08-26 | 2014-02-12 | 苏州明志科技有限公司 | Quantitative sand addition device for core-making machine |
| DE202014007680U1 (en) * | 2014-09-20 | 2014-11-28 | Klaus Adelhardt | Universal Shooting Plate Device for Shooting Plates of Core Shooting Machines |
| CN204194726U (en) * | 2014-09-22 | 2015-03-11 | 侯马市晋烽机械铸造有限公司 | A kind of rapid-mounted frock of iron-mould coated sand shooting machine |
| CN104325094A (en) * | 2014-11-20 | 2015-02-04 | 重庆新红旗缸盖制造有限公司 | Full-automatic series core-making center of inorganic precoated sand |
| CN106903270A (en) * | 2015-12-22 | 2017-06-30 | 谢乐 | A kind of Novel core shooter |
| CN205200464U (en) * | 2015-12-30 | 2016-05-04 | 广西玉柴机器股份有限公司 | Shooting plate subassembly of hot box |
| CN209849840U (en) * | 2019-05-05 | 2019-12-27 | 山东格新精工有限公司 | Sand shooting plate for precoated sand hot core box |
Also Published As
| Publication number | Publication date |
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| CN110052586A (en) | 2019-07-26 |
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