CN205183712U - Foundry sand case - Google Patents
Foundry sand case Download PDFInfo
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- CN205183712U CN205183712U CN201520982953.2U CN201520982953U CN205183712U CN 205183712 U CN205183712 U CN 205183712U CN 201520982953 U CN201520982953 U CN 201520982953U CN 205183712 U CN205183712 U CN 205183712U
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- ventilation
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- negative pressure
- casting
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Abstract
The utility model relates to a frock technical field who uses when make in mining middle part groove especially relates to a foundry sand case, the utility model discloses a sand box comprises outer wall and inner wall, constitutes the cavity of ventilating between outer wall and the inner wall, set up on the outer wall again with the first negative pressure of the cavity intercommunication of the ventilating passageway of ventilating, the louver mouth of cavity intercommunication offered on the inner wall and ventilate, the carrier ring that covers the gauze element layer that sets up the mesh of ventilating at the opening part of louver mouth and set up the air vent, so, ventilate air, the flue gas that the passageway formed in the sand box by air vent, gauze element layer's the mesh of ventilating, louver mouth, the cavity of ventilating, the first negative pressure of carrier ring and aspirated the passageway of outside by the negative pressure, when casting mould back -up sand in the sand box, pouring, through this flue gas passing away realization negative pressure suction casting.
Description
Technical field
The utility model relates to the frock technical field used when mine flight conveyer intermediate channel foundry goods manufactures, and particularly relates to a kind of sand box used for casting.
Background technology
When adopting lost foam casting process operating mine with the middle pan of scraper conveyor foundry goods, sandbox is requisite frock when producing foundry goods, generally evaporative pattern casting mold is imbedded sandbox, then ram-jolt is filled with dry sand, due in high temperature liquid iron casting process, a lot of flue gas can be produced in the vaporized process of bubbles model in evaporative pattern need to discharge in time, so, sandbox needs the passing away of reserved drawing smoke, and while drawing smoke, molding sand can not be sucked away, also will ensure that sand mold can not be defeated and dispersed.
Summary of the invention
Be necessary to propose a kind of sand box used for casting arranging flue gas passing away.
A kind of sand box used for casting, comprise casing, described casing comprises sidewall, described sidewall comprises outer wall, inwall, and the ventilation cavity to be made up of outer wall and inwall, described ventilation cavity is the seal chamber be made up of outer wall and inwall, described outer wall is fixedly installed the first negative pressure ventilation passage, described first negative pressure ventilation passage and described ventilation cavity connects, described inwall is offered at least four ventilation windows, described at least four ventilation windows are evenly arranged on described inwall, the height of described ventilation window is greater than 1/2 of the height of described casing, gauze layer is covered successively at the opening part of described ventilation window, carrier ring, described gauze layer and carrier ring be fixed on ventilation window opening part around inwall on, described gauze layer is offered ventilation mesh, the diameter of described ventilation mesh is less than the diameter of the molding sand for filling sandbox, described carrier ring offers passage, the diameter of described passage is greater than the diameter of the molding sand for filling sandbox.
Preferably, described casing also comprises base plate, and described base plate is fixed on the bottom of the sidewall of casing, and is tightly connected between base plate and sidewall.
Preferably, the inwall of the bottom near sidewall also offers ventilation window along horizontal direction, the height of this ventilation window is less than 1/4 of the height of described casing, gauze layer, carrier ring is covered successively, on the inwall around the opening part that described gauze layer and carrier ring are fixed on this ventilation window at the opening part of this ventilation window.
Preferably, also offer ventilation window in the corner of inwall, cover gauze layer, carrier ring successively at the opening part of this ventilation window, on the inwall around the opening part that described gauze layer and carrier ring are fixed on this ventilation window.
Preferably, described first negative pressure ventilation channel setting in the bottom of outer wall, and faces with the ventilation window that the bottom of inwall is offered.
Preferably, the sidewall of described outer wall is also fixedly installed the second negative pressure ventilation passage, described second negative pressure ventilation passage and described ventilation cavity connects, the ventilation window that the bottom of described second negative pressure ventilation passage and inwall is offered faces.
Preferably, described sand box used for casting also comprises hanger, and described hanger is at least two, and described at least two hangers are separately fixed at along on relative two outer walls of the length direction of casing.
Preferably, be fixedly installed pinhole at the Shang Yanchu of the outer wall of described sidewall, the Xia Yanchu of the outer wall of described sidewall is also fixedly installed pinhole, and the upper pinhole along place of described outer wall and the lower pinhole along locating of outer wall face in vertical direction.
Sandbox of the present utility model is made up of outer wall and inwall, ventilation cavity is formed between outer wall and inwall, the first negative pressure ventilation passage with ventilation cavity connects is set on outer wall again, inwall is offered the ventilation window with cavity connects of ventilating, the gauze layer that ventilation mesh is set and the carrier ring that passage is set is covered at the opening part of ventilation window, so, by the passage of carrier ring, the ventilation mesh of gauze layer, ventilation window, ventilation cavity, first negative pressure ventilation passage forms the air in sandbox, flue gas is by the passage of negative-pressure ward to outside, when casting mold back-up sand in sandbox, during cast, negative-pressure ward cast is realized by this flue gas passing away.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of better embodiment of sand box used for casting.
Fig. 2 is the structural representation of the another kind of better embodiment of sand box used for casting.
Fig. 3 is the partial enlarged drawing of sand box used for casting.
In figure: sidewall 1, outer wall 11, inwall 12, first negative pressure ventilation passage 121, second negative pressure ventilation passage 122, gauze layer 123, ventilation mesh 1231, carrier ring 124, passage 1241, hanger 125, pinhole 126, base plate 2.
Detailed description of the invention
Sand box used for casting of the present utility model is applicable to mine flight conveyer and adopts the monoblock cast of evaporative pattern negative pressure of vacuum.
See Fig. 1, Fig. 3, sand box used for casting, comprise casing, casing comprises sidewall 1, sidewall 1 comprises outer wall 11, inwall 12, and the ventilation cavity to be made up of outer wall 11 and inwall 12, ventilation cavity is the seal chamber be made up of outer wall 11 and inwall 12, outer wall 11 is fixedly installed the first negative pressure ventilation passage 121, first negative pressure ventilation passage 121 and ventilation cavity connects, inwall 12 is offered at least four ventilation windows, at least four ventilation windows are evenly arranged on inwall 12, the height of ventilation window is greater than 1/2 of the height of casing, gauze layer 123 is covered successively at the opening part of ventilation window, carrier ring 124, gauze layer 123 and carrier ring 124 be fixed on ventilation window opening part around inwall 12 on, gauze layer 123 is offered ventilation mesh 1231, the diameter of ventilation mesh 1231 is less than the diameter of the molding sand for filling sandbox, described carrier ring 124 offers passage 1241, the diameter of passage 1241 is greater than the diameter of the molding sand for filling sandbox.
When using this sandbox, by when in the first negative pressure ventilation passage 121 pairs of sandboxes, negative pressure vacuumizes, be pumped smoothly in sandbox to make air, inwall 12 is offered ventilation window, ventilation window covers gauze layer 123 and carrier ring 124, ventilation mesh 1231 on gauze layer 123 and the passage 1241 on carrier ring 124 become the passage that air is drawn out of, and the ventilation mesh 1231 of gauze layer 123 can stop molding sand to be drawn out of, thus achieve negative pressure and vacuumize.
See Fig. 2, in other embodiments, casing also comprises base plate 2, and base plate 2 is fixed on the bottom of the sidewall 1 of casing, and is tightly connected between base plate 2 and sidewall 1.This sandbox arranging base plate 2 is used as under casing.
Further, the inwall 12 of the bottom near sidewall 1 also offers ventilation window along horizontal direction, the height of this ventilation window is less than 1/4 of the height of casing, the too high intensity that can affect inner wall of sand box 12 of louver(-vre) open height of horizontal direction, gauze layer 123, carrier ring 124 is covered successively, on the inwall 12 around the opening part that gauze layer 123 and carrier ring 124 are fixed on this ventilation window at the opening part of this ventilation window.
Further, due to the corner at sandbox, suffered by air current flow damping larger, so, also ventilation window is offered in the corner of inwall 12, gauze layer 123, carrier ring 124 is covered successively, on the inwall 12 around the opening part that gauze layer 123 and carrier ring 124 are fixed on this ventilation window at the opening part of this ventilation window.
Further, the first negative pressure ventilation passage 121 is arranged on the bottom of outer wall 11, and faces with the ventilation window that the bottom of inwall 12 is offered.So, when the vacuum pipe of vavuum pump connects the ventilation negative pressure and cavity suction to sandbox after the first negative pressure ventilation passage 121, negative-pressure air-flow directly enters ventilation cavity from ventilation window, is convenient to air current flow, also reduces the resistance of air current flow.
Further, in like manner, the sidewall 1 of outer wall 11 is also fixedly installed the second negative pressure ventilation passage 122, described second negative pressure ventilation passage 122 and ventilation cavity connects, the ventilation window that the second negative pressure ventilation passage 122 and the bottom of inwall 12 are offered faces.
Further, sand box used for casting also comprises the hanger 125 being convenient to lift, and hanger 125 is at least two, and at least two hangers 125 are separately fixed at along on relative two outer walls 11 of the length direction of casing.
Further, pinhole 126 is fixedly installed at the Shang Yanchu of the outer wall 11 of sidewall 1, the Xia Yanchu of the outer wall 11 of sidewall 1 is also fixedly installed pinhole 126, and the upper of outer wall 11 faces in vertical direction along the pinhole 126 at place and the lower pinhole 126 along locating of outer wall 11.
In the utility model, the sandbox arranging base plate 2 is used as under casing, the sandbox not arranging base plate 2 is used as raising middle flask or top case, because casting mold volume is larger, casting mold is placed on multiple sandbox stack after sandbox group in carry out back-up sand, cast, interfix by inserting the mode of pin in pinhole 126 between multiple sandbox.
Claims (8)
1. a sand box used for casting, comprise casing, it is characterized in that: described casing comprises sidewall, described sidewall comprises outer wall, inwall, and the ventilation cavity to be made up of outer wall and inwall, described ventilation cavity is the seal chamber be made up of outer wall and inwall, described outer wall is fixedly installed the first negative pressure ventilation passage, described first negative pressure ventilation passage and described ventilation cavity connects, described inwall is offered at least four ventilation windows, described at least four ventilation windows are evenly arranged on described inwall, the height of described ventilation window is greater than 1/2 of the height of described casing, gauze layer is covered successively at the opening part of described ventilation window, carrier ring, described gauze layer and carrier ring be fixed on ventilation window opening part around inwall on, described gauze layer is offered ventilation mesh, the diameter of described ventilation mesh is less than the diameter of the molding sand for filling sandbox, described carrier ring offers passage, the diameter of described passage is greater than the diameter of the molding sand for filling sandbox.
2. sand box used for casting as claimed in claim 1, it is characterized in that: described casing also comprises base plate, described base plate is fixed on the bottom of the sidewall of casing, and is tightly connected between base plate and sidewall.
3. sand box used for casting as claimed in claim 1 or 2, it is characterized in that: on the inwall of the bottom near sidewall, also offer ventilation window along horizontal direction, the height of this ventilation window is less than 1/4 of the height of described casing, gauze layer, carrier ring is covered successively, on the inwall around the opening part that described gauze layer and carrier ring are fixed on this ventilation window at the opening part of this ventilation window.
4. sand box used for casting as claimed in claim 1 or 2, it is characterized in that: also offer ventilation window in the corner of inwall, gauze layer, carrier ring is covered successively, on the inwall around the opening part that described gauze layer and carrier ring are fixed on this ventilation window at the opening part of this ventilation window.
5. sand box used for casting as claimed in claim 1 or 2, is characterized in that: described first negative pressure ventilation channel setting in the bottom of outer wall, and faces with the ventilation window that the bottom of inwall is offered.
6. sand box used for casting as claimed in claim 1 or 2, it is characterized in that: the sidewall of described outer wall is also fixedly installed the second negative pressure ventilation passage, described second negative pressure ventilation passage and described ventilation cavity connects, the ventilation window that the bottom of described second negative pressure ventilation passage and inwall is offered faces.
7. sand box used for casting as claimed in claim 1 or 2, it is characterized in that: described sand box used for casting also comprises hanger, described hanger is at least two, and described at least two hangers are separately fixed at along on relative two outer walls of the length direction of casing.
8. sand box used for casting as claimed in claim 1 or 2, it is characterized in that: be fixedly installed pinhole at the Shang Yanchu of the outer wall of described sidewall, the Xia Yanchu of the outer wall of described sidewall is also fixedly installed pinhole, and the upper pinhole along place of described outer wall and the lower pinhole along locating of outer wall face in vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982953.2U CN205183712U (en) | 2015-12-02 | 2015-12-02 | Foundry sand case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982953.2U CN205183712U (en) | 2015-12-02 | 2015-12-02 | Foundry sand case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205183712U true CN205183712U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520982953.2U Active CN205183712U (en) | 2015-12-02 | 2015-12-02 | Foundry sand case |
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| Country | Link |
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| CN (1) | CN205183712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080581A (en) * | 2018-01-08 | 2018-05-29 | 江阴新长机械配件有限公司 | A kind of improved double-deck casting sandbox |
| CN108080582A (en) * | 2018-01-08 | 2018-05-29 | 江阴新长机械配件有限公司 | A kind of novel wind power cast casting sandbox |
| CN108160949A (en) * | 2018-01-09 | 2018-06-15 | 江阴新长机械配件有限公司 | A kind of wind turbine cast casting sandbox for having auxiliary location structure |
-
2015
- 2015-12-02 CN CN201520982953.2U patent/CN205183712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108080581A (en) * | 2018-01-08 | 2018-05-29 | 江阴新长机械配件有限公司 | A kind of improved double-deck casting sandbox |
| CN108080582A (en) * | 2018-01-08 | 2018-05-29 | 江阴新长机械配件有限公司 | A kind of novel wind power cast casting sandbox |
| CN108160949A (en) * | 2018-01-09 | 2018-06-15 | 江阴新长机械配件有限公司 | A kind of wind turbine cast casting sandbox for having auxiliary location structure |
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