CN111299505A - Secondary sand shooting cold core box and production process thereof - Google Patents
Secondary sand shooting cold core box and production process thereof Download PDFInfo
- Publication number
- CN111299505A CN111299505A CN201811511223.9A CN201811511223A CN111299505A CN 111299505 A CN111299505 A CN 111299505A CN 201811511223 A CN201811511223 A CN 201811511223A CN 111299505 A CN111299505 A CN 111299505A
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- China
- Prior art keywords
- box body
- core box
- sand
- core
- movable side
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/103—Multipart cores
Abstract
The invention discloses a secondary sand shooting cold core box and a production process thereof, and the secondary sand shooting cold core box comprises a bottom frame connected with a table board and a distance block clamped on the bottom frame, wherein a lower core box body is fixed on the bottom frame, an upper core box body is clamped on the lower core box body, a blade sand core is arranged in a cavity formed by the lower core box body and the upper core box body, a sand shooting plate and a blowing plate are also arranged at the upper part of the upper core box body, a handle and a resistant module are connected to the side surface of the upper core box body, a single blade sand core is arranged in the lower core box in an opening state, a positioning gap between the single sand core and the lower core box body is 0.05mm, the upper core box is closed, the upper core box enters a cold core machine for core making, the sand shooting pressure in a shooting nozzle sleeve is 3.5KG, the cold core sand fills the gap between the blade sand core and the cold.
Description
Technical Field
The invention relates to a secondary sand shooting cold core box and a production process thereof, in particular to a secondary sand shooting cold core box and a production process thereof.
Background
The international blade sand core produced at present is an integral blade sand core of an impeller obtained by manually extracting a blade loose piece, and in order to extract the loose piece, the shape of the blade is partially corrected, so that the aim of smooth demolding is fulfilled. Therefore, the obtained integral sand core is different from the original design pattern, and the design intention cannot be completely reflected.
The process can exactly make up the defects, the shape of the blade is completely embodied, and the sand cores of the single blade are accurately combined into an integral sand core in a secondary sand shooting mode.
Disclosure of Invention
The invention aims to provide a secondary sand shooting cold core box and a production process thereof, which have the advantages of completely reflecting the shape of a blade and accurately combining single blade sand cores into an integral sand core in a secondary sand shooting mode so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the secondary sand shooting cold core box comprises a bottom frame connected with a table top and a distance block clamped on the bottom frame, wherein a lower core box body is fixed on the bottom frame, an upper core box body is clamped on the lower core box body, a blade sand core is placed in a cavity formed by the lower core box body and the upper core box body, a sand shooting plate is also fixed at the top of the upper core box body, a handle and a resistant module are connected to the side surface of the sand shooting plate, and a shooting nozzle sleeve connected with a blowing plate of the sand shooting plate extends into the blade sand core;
the blade sand core comprises a movable side, a fixed side and a supporting seat, the supporting seat is respectively connected with the movable side and the fixed side through bolts, die feet are sleeved on ports at two ends of the supporting seat, the die feet are aligned to slotted holes formed in the lower core box body and the upper core box body, the movable side and the fixed side are mutually clamped, the bottom end of the movable side is respectively and symmetrically connected with a guide rod and an ejector rod, the ejector rod is fixed with the movable side mounting plate, a limit sleeve connected with the movable side mounting plate is meshed outside the ejector rod, the guide rod penetrates through the movable side mounting plate and a movable side top plate connected with the movable side mounting plate, and a heat-resistant spring is sleeved outside the;
the top of the fixed side is connected with a fixed side mounting plate, and a fixed side cover plate and a fixed top plate are connected to the guide rod and the ejector rod which penetrate through the fixed side mounting plate.
Further, the junction of the upper core box body and the lower core box body is fixed through a joint pin, the junction of the upper core box body and the lower core box body is provided with a sealing strip which is clamped to achieve a sealing effect, and the lower core box body and the upper core box body are also plugged with a copper bar air plug.
Furthermore, through holes into which the nozzle sleeves extend are formed in the movable side and the fixed side, and sealing rings sleeved on the nozzle sleeves are further mounted on the movable side and the fixed side.
Furthermore, impellers are arranged in the movable side and the fixed side, and the nozzle sleeve sprays cold core sand to fill the gap between the blade sand core and the cold core box.
The invention provides another technical scheme, and the production process of the secondary sand shooting cold core box comprises the following steps:
s1: placing a single blade sand core into a movable side and a fixed side in an opening state, wherein the movable side and the fixed side are supported by a guide rod and an ejector rod through a joint pin, and a heat-resistant spring compresses and fixes a fixed side mounting plate and a movable side mounting plate;
s2: the whole body with the movable side and the fixed side closed is placed in the lower core box body, the positioning gap between a single sand core and the lower core box body is 0.05mm, the upper core box body is arranged and fixed with the lower core box body, and the gap between the upper core box body and the sand core is 0.1 mm;
s3: entering a cold core machine for core making, taking phenolic resin cold core sand and triethylamine as catalysts, and shooting the sand in the nozzle sleeve 411 with the pressure of 3.5KG for 20 s;
s4: and filling gaps between the blade sand cores and the cold core box with cold core sand, combining the single blade sand cores into an integral sand core, and scanning the sand core by laser.
Further, the fixed-side mounting plate and the movable-side mounting plate leak the impeller and are not in a completely closed state.
Compared with the prior art, the invention has the beneficial effects that:
the secondary sand shooting cold core box and the production process thereof are characterized in that a single blade sand core is placed into a movable side and a fixed side which are in an opening state, a positioning gap between the single sand core and a lower core box body is 0.05mm, a gap between an upper core box body and the sand core is 0.1mm, the single blade sand core enters a cold core machine for core making, the sand shooting pressure in a shooting mouth sleeve is 3.5KG, and the curing time is 20 s; and filling gaps between the blade sand cores and the cold core box with cold core sand, combining the single blade sand cores into an integral sand core, and scanning the sand core by laser.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an upper core box body of the present invention;
FIG. 3 is a lower core box body of the present invention;
FIG. 4 is a block diagram of the sand core of the blade of the present invention;
FIG. 5 is a view showing a movable side structure of the present invention;
fig. 6 is a view showing a structure of a fixing side of the present invention.
In the figure: 1. a bottom frame; 2. a distance block; 3. a core setting box body; 4. an upper core box body; 41. a sand shooting plate; 411. a nozzle sleeve; 42. a handle; 43. a resistant module; 5. a blade sand core; 51. a movable side; 511. a guide bar; 5111. a heat resistant spring; 512. a top rod; 513. a movable side top plate; 514. a movable-side mounting plate; 515. a limiting sleeve; 52. a fixed side; 521. a fixed side mounting plate; 522. fixing a top plate; 523. fixing the side cover plate; 53. a supporting seat; 531. a mould leg; 6. and (4) an air blowing plate.
Detailed Description
The technical scheme in the embodiment of the invention will be made clear below by combining the attached drawings in the embodiment of the invention; fully described, it is to be understood that the described embodiments are merely exemplary of some, but not all, embodiments of the invention and that all other embodiments, which can be derived by one of ordinary skill in the art based on the described embodiments without inventive faculty, are within the scope of the invention.
Referring to fig. 1-3, the secondary sand shooting cold core box comprises a bottom frame 1 connected with a table top and distance blocks 2 clamped on the bottom frame 1, wherein the distance blocks 2 clamp and fix the bottom frame 1, a lower core box body 3 is fixed on the bottom frame 1, an upper core box body 4 is clamped on the lower core box body 3, the joint of the upper core box body 4 and the lower core box body 3 is fixed through a joint pin, a sealing strip clamped to achieve the sealing effect is further installed at the joint of the upper core box body 4 and the lower core box body 3, a copper bar air plug is further plugged in the lower core box body 3 and the upper core box body 4, the air inlet and outlet of the copper bar air plug are freely controlled, the lower core box body 3 and the upper core box body 4 are connected into a whole, a blade sand core 5 is placed in a cavity formed by the lower core box body 3 and the upper core box body 4, a sand shooting plate 41 is further fixed at the top of the upper core box body 4, a handle 42 and a resistant module 43 are connected on the, the nozzle sleeve 411 of the sand shooting plate 41 connected with the air blowing plate 6 extends to the inside of the blade sand core 5.
Referring to fig. 4-5, the blade sand core 5 includes a movable side 51, a fixed side 52 and a support base 53, the support base 53 is respectively connected with the movable side 51 and the fixed side 52 through bolts, and is sleeved with a mold foot 531 on the end ports of the two ends, the mold foot 531 aligns with the slotted holes opened on the lower core box body 3 and the upper core box body 4, the movable side 51 and the fixed side 52 are mutually clamped, the movable side 51 and the fixed side 52 are provided with through holes into which the nozzle sleeve 411 extends, the movable side 51 and the fixed side 52 are further provided with a seal ring sleeved on the nozzle sleeve 411, the bottom end of the movable side 51 is respectively and symmetrically connected with a guide rod 511 and a top rod 512, the top rod 512 is fixed with the movable side mounting plate 514, the outside is engaged with a limit sleeve 515 connected with the movable side mounting plate 514, the guide rod 511 penetrates through the movable side mounting plate 514 and the movable side top plate 513 connected with the movable side mounting plate.
Referring to fig. 6, a fixed side mounting plate 521 is connected to the top of the fixed side 52, a fixed side cover plate 523 and a fixed top plate 522 are connected to a guide rod 511 and a top rod 512 penetrating through the fixed side mounting plate 521, impellers are placed in the movable side 51 and the fixed side 52, and the nozzle sleeve 411 ejects cold core sand to fill the blade sand core. And the gap between the cold box and the cold box.
The invention provides another technical scheme, and the production process of the secondary sand shooting cold core box comprises the following steps:
the method comprises the following steps: placing a single blade sand core into the movable side 51 and the fixed side 52 in an open state, wherein the movable side 51 and the fixed side 52 are supported by the guide rod 511 and the ejector rod 512 through the joint pin;
step two: the whole body of the closed movable side 51 and the closed fixed side 52 is placed in the lower core box body 3, the positioning gap between a single sand core and the lower core box body 3 is 0.05mm, the upper core box body 4 is arranged and fixed with the lower core box body 3, and the gap between the upper core box body 4 and the sand core is 0.1 mm;
step three: entering a cold core machine for core making, taking phenolic resin cold core sand and triethylamine as catalysts, and shooting the sand in the nozzle sleeve 411 with the pressure of 3.5KG for 20 s;
step four: and filling gaps between the blade sand cores and the cold core box with cold core sand, combining the single blade sand cores into an integral sand core, and scanning the sand core by laser.
In conclusion, the secondary sand shooting cold core box and the production process thereof have the advantages that a single blade sand core is placed into the movable side 51 and the fixed side 52 in the opening state; the positioning clearance between a single sand core and the lower core box body 3 is 0.05mm, and the clearance between the upper core box body 4 and the sand core is 0.1 mm; the mixture enters a cold core machine for core making, the sand shooting pressure in the nozzle sleeve 411 is 3.5KG, and the curing time is 20 s; and filling gaps between the blade sand cores and the cold core box with cold core sand, combining the single blade sand cores into an integral sand core, and scanning the sand core by laser.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The secondary sand shooting cold core box comprises a bottom frame (1) connected with a table board and distance blocks (2) clamped on the bottom frame (1), and is characterized in that a lower core box body (3) is fixed on the bottom frame (1), an upper core box body (4) is clamped on the lower core box body (3), a blade sand core (5) is placed in a cavity formed by the lower core box body (3) and the upper core box body (4), a sand shooting plate (41) is further fixed at the top of the upper core box body (4), a handle (42) and a resistant module (43) are connected to the side surface of the upper core box body, and a nozzle sleeve (41) connected with the sand shooting plate (41) and a gas blowing plate (6) extends to the inside of the blade sand core (5);
the blade sand core (5) comprises a movable side (51), a fixed side (52) and a supporting seat (53), the supporting seat (53) is respectively connected with the movable side (51) and the fixed side (52) through bolts, die feet (531) are sleeved on ports at two ends of the supporting seat, the die feet (531) are aligned to slotted holes formed in the lower core box body (3) and the upper core box body (4), the movable side (51) and the fixed side (52) are mutually clamped, the bottom end of the movable side (51) is respectively and symmetrically connected with a guide rod (511) and an ejector rod (512), the ejector rod (512) is fixed with the movable side mounting plate (514), a limiting sleeve (515) connected with the movable side mounting plate (514) is meshed outside the ejector rod (512), the guide rod (511) penetrates through the movable side mounting plate (514) and a movable side top plate (513) connected with the movable side mounting plate, and a heat-resistant spring (5111) is sleeved outside;
the top of the fixed side (52) is connected with a fixed side mounting plate (521), and a guide rod (511) and a top rod (512) which penetrate through the fixed side mounting plate (521) are connected with a fixed side cover plate (523) and a fixed top plate (522).
2. The secondary shot cold box of claim 1, wherein: the joint of the upper core box body (4) and the lower core box body (3) is fixed through a joint pin, the joint of the upper core box body (4) and the lower core box body (3) is further provided with a sealing strip clamped to achieve a sealing effect, and the lower core box body (3) and the upper core box body (4) are further plugged with a copper bar air plug.
3. The secondary shot cold box of claim 1, wherein: through holes into which the nozzle sleeves (41) extend are formed in the movable side (51) and the fixed side (52), and sealing rings sleeved on the nozzle sleeves (41) are further installed on the movable side (51) and the fixed side (52).
4. The secondary shot cold box of claim 1, wherein: impellers are arranged in the movable side (51) and the fixed side (52), and the nozzle sleeve (41) ejects cold core sand to fill the gap between the blade sand core and the cold core box.
5. The process for producing a secondary shot cold box according to claim 1, comprising the steps of:
s1: a single blade sand core is placed into a movable side (51) and a fixed side (52) which are in an open state, the movable side (51) and the fixed side (52) are supported by a guide rod (511) and an ejector rod (512) through a joint pin, and a heat-resistant spring (5111) presses and fixes a fixed side mounting plate (521) and a movable side mounting plate (514);
s2: the whole body of the closed movable side (51) and the closed fixed side (52) is placed in the lower core box body (3), the positioning gap between a single sand core and the lower core box body (3) is 0.05mm, the upper core box body (4) is arranged and fixed with the lower core box body (3), and the gap between the upper core box body (4) and the sand core is 0.1 mm;
s3: entering a cold core machine for core making, taking phenolic resin cold core sand and triethylamine as catalysts, and setting the sand shooting pressure in the nozzle sleeve (41) to be 3.5KG for 20 s;
s4: and filling gaps between the blade sand cores and the cold core box with cold core sand, combining the single blade sand cores into an integral sand core, and scanning the sand core by laser.
6. A process for the production of a secondary shot cold box according to claim 5, characterized in that the fixed side mounting plate (521) and the movable side mounting plate (514) leak the impeller out of the fully closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511223.9A CN111299505A (en) | 2018-12-11 | 2018-12-11 | Secondary sand shooting cold core box and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511223.9A CN111299505A (en) | 2018-12-11 | 2018-12-11 | Secondary sand shooting cold core box and production process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111299505A true CN111299505A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511223.9A Pending CN111299505A (en) | 2018-12-11 | 2018-12-11 | Secondary sand shooting cold core box and production process thereof |
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| Country | Link |
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| CN (1) | CN111299505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275513A (en) * | 2021-04-16 | 2021-08-20 | 威斯卡特工业（中国）有限公司 | Cold core making process and device |
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Application publication date: 20200619 |
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| RJ01 | Rejection of invention patent application after publication |