CN202498192U - Sand box used for modelling - Google Patents

Sand box used for modelling Download PDF

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Publication number
CN202498192U
CN202498192U CN2012200803497U CN201220080349U CN202498192U CN 202498192 U CN202498192 U CN 202498192U CN 2012200803497 U CN2012200803497 U CN 2012200803497U CN 201220080349 U CN201220080349 U CN 201220080349U CN 202498192 U CN202498192 U CN 202498192U
Authority
CN
China
Prior art keywords
sandbox
exhaust tube
shell
sand box
communicated
Prior art date
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.)
Expired - Fee Related
Application number
CN2012200803497U
Other languages
Chinese (zh)
Inventor
贾久生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANG SU KUNHONG MACHINERY MANUFACTURING Co Ltd
Original Assignee
JIANG SU KUNHONG MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANG SU KUNHONG MACHINERY MANUFACTURING Co Ltd filed Critical JIANG SU KUNHONG MACHINERY MANUFACTURING Co Ltd
Priority to CN2012200803497U priority Critical patent/CN202498192U/en
Application granted granted Critical
Publication of CN202498192U publication Critical patent/CN202498192U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a sand box used for modelling. The sand box is internally provided with one exhaust tube at least, the end part of the end of the exhaust tube is sealed, and small holes are densely formed on the wall of the exhaust tube. The exhaust tube is horizontally arranged in the sand box, the other end of the exhaust tube stretches out of the frame of the sand box and is communicated with an air pump; or the other end of the exhaust tube stretches out of the frame of the sand box and is communicated with an aspirating chamber, and the aspirating chamber is communicated with the air pump by virtue of a pipeline. The sand box used for modelling disclosed by the utility model has the advantage of simple structure, and the requirement that a shell is only prepared from quartz sand can be met.

Description

The sandbox that is used for moulding
Technical field
The utility model relates to casting field, is specifically related to be used for the sandbox of moulding.
Background technology
In casting industry, all need to make earlier shell before the metalwork casting.At present; Aggregate kind by shell generally is divided into two kinds; Be quartziferous shell (being), non-quartziferous shell as aggregate with quartz sand; No matter being to prepare shell with any aggregate, all is shell aggregate and all kinds of inorganic or organic binder bond and casting to be mixed with auxiliary material process, and after moulding, also need use high-temperature baking.Know that from above-mentioned the defective that the foundry goods moulding of prior art exists is: need raw material type many, the moulding operation is many, also needs consumes energy.
Summary of the invention
The technical problem that the utility model will solve provides a kind of shell, in aggregate, need not add any auxiliary material, and shell does not need heated baking, simultaneously, and the sandbox that the utility model also will provide the preparation method of this shell and be used for moulding.
The utility model is realized through following technical scheme:
A kind of shell, what said shell adopted is dried quartz sand, and said dried quartz sand water content is below 6 ‰, and quartz sand particle size is the 50-100 order, and shell is negative pressure state.
The further improvement project of the utility model is that shell negative pressure pressure is 0.04-0.06MPa.
The sandbox that is used for above-mentioned shell is provided with an exhaust tube at least in the said sandbox, this end end sealing of said exhaust tube is densely covered with aperture on the tube wall of bleeding.
The further improvement project of the utility model is, exhaust tube is horizontal to be arranged in the sandbox, and the exhaust tube other end stretches out the sandbox frame and is communicated with air exhauster through pipeline outward;
Or the exhaust tube other end stretches out that the sandbox frame is outer to be communicated with aspirating chamber, and said aspirating chamber passes through pipeline and is communicated with air exhauster.Said pipeline is a flexible pipe.
The utility model further improvement project is, the aperture that gathers on the said exhaust tube, and its aperture is less than the size of quartz sand smallest particles.
Prepare the method for above-mentioned shell with above-mentioned sandbox, comprise the following steps:
(1) sandbox is put on the workbench, again model is put in the sandbox, cover bottom surface and model outer surface in the sandbox with plastic foil then;
(2) be that quartz sand below 6 ‰ is packed in the sandbox with water content;
(3) it is suitable for reading to cover sandbox with plastic foil;
(4) open pumping with exhaust blower, make shell be negative pressure state, reach 0.04-0.06MPa until pressure and stop to bleed;
(5) put into core after the molding, cast after the mould assembling and closing.
The thickness of said plastic foil is 0.15-0.2mm.
The utility model compared with prior art has following advantage:
The utility model only uses quartz sand as the shell raw material; Have abundant raw material, advantage with low cost, the what is more important preparation section is simple, and only need the water content of quartz sand be handled can be with its sandbox of packing into below 6 ‰; Vacuumize behind the plastic covering film again, promptly accomplish moulding.The sandbox that the utility model provides has advantage of simple structure, can satisfy the preparation of above-mentioned shell.
Description of drawings
Fig. 1 is the sandbox cut-away diagram of the utility model.
Fig. 2 is the empty sandbox schematic top plan view of Fig. 1.
The specific embodiment
A kind of shell, what said shell adopted is dried quartz sand, and dried quartz sand particle size is the 20-40 order, and water content is 5 ‰, and quartz sand particle size is the 50-100 order, and shell is negative pressure state, and negative pressure pressure is the 0.05MPa atmospheric pressure.
Like Fig. 1, shown in 2, be used to prepare the sandbox 1 of above-mentioned shell, comprise four frames of sandbox, be provided with two exhaust tubes 2 (horizontal) in the said sandbox 1.As shown in Figure 1, two exhaust tubes 2 are the setting of staggering up and down, and are as shown in Figure 2, and two exhaust tube 2 downward projections are symmetricly set in sandbox center line both sides.
Still like Fig. 1, shown in 2, the sealing of the inner end of said exhaust tube 2 is densely covered with aperture 5 on exhaust tube 2 walls, its aperture is less than the size of quartz sand smallest particles.
Still like Fig. 1, shown in 2, exhaust tube 2 other ends stretch out that sandbox 1 frame is outer to be communicated with (aspirating chamber 3 is to be connected in the airtight cavity outside sandbox 1 frame) with aspirating chamber 3, said aspirating chamber 3 passes through pipeline 4 and is communicated with (not shown air exhauster) with air exhauster.In the present embodiment, said pipeline 4 is a flexible pipe.
Prepare the method for above-mentioned shell with above-mentioned sandbox, comprise the following steps:
(1) earlier model 6 is put on the workbench, uses plastic foil 7 overlay model 6 and ground thereof then, sandbox 1 is placed on the workbench again, the frame of sandbox 1 is pushed down plastic foil 7;
(2) be that quartz sand below 6 ‰ is packed in the sandbox 1 with water content;
(3) suitable for reading with the plastic foil 7 covering sandboxes 1 of 0.2mm thickness;
(4) open pumping with exhaust blower, make shell be negative pressure state, reach 0.05MPa until pressure and stop to bleed;
(5) put into core after the molding, cast after the mould assembling and closing.
Said plastic foil 7.
In the present embodiment, model 6 is the hydraulic part body.

Claims (3)

1. the sandbox that is used for moulding comprises it is characterized in that four frames of sandbox: be provided with an exhaust tube in the said sandbox at least, the inner end sealing of said exhaust tube is densely covered with aperture on the tube wall of bleeding.
2. a kind of sandbox that is used for moulding as claimed in claim 1 is characterized in that: exhaust tube is horizontal to be arranged in the sandbox, and the exhaust tube other end stretches out the sandbox frame and is communicated with air exhauster through pipeline outward;
Or the exhaust tube other end stretches out that the sandbox frame is outer to be communicated with aspirating chamber, and said aspirating chamber passes through pipeline and is communicated with air exhauster.
3. the sandbox that is used for moulding as claimed in claim 2 is characterized in that: said pipeline is a flexible pipe.
CN2012200803497U 2012-03-06 2012-03-06 Sand box used for modelling Expired - Fee Related CN202498192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200803497U CN202498192U (en) 2012-03-06 2012-03-06 Sand box used for modelling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200803497U CN202498192U (en) 2012-03-06 2012-03-06 Sand box used for modelling

Publications (1)

Publication Number Publication Date
CN202498192U true CN202498192U (en) 2012-10-24

Family

ID=47034819

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200803497U Expired - Fee Related CN202498192U (en) 2012-03-06 2012-03-06 Sand box used for modelling

Country Status (1)

Country Link
CN (1) CN202498192U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581222A (en) * 2012-03-06 2012-07-18 江苏坤鸿机械制造有限公司 Shell, sand box and preparation method of shell
CN104001903A (en) * 2014-05-08 2014-08-27 临汾鹏泰伟业有限公司 Metal magnesium refining kettle casting die and manufacturing process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581222A (en) * 2012-03-06 2012-07-18 江苏坤鸿机械制造有限公司 Shell, sand box and preparation method of shell
CN104001903A (en) * 2014-05-08 2014-08-27 临汾鹏泰伟业有限公司 Metal magnesium refining kettle casting die and manufacturing process thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121024

Termination date: 20140306