CN208555911U - A kind of vacuum dry moulding sandbox - Google Patents
A kind of vacuum dry moulding sandbox Download PDFInfo
- Publication number
- CN208555911U CN208555911U CN201821027656.2U CN201821027656U CN208555911U CN 208555911 U CN208555911 U CN 208555911U CN 201821027656 U CN201821027656 U CN 201821027656U CN 208555911 U CN208555911 U CN 208555911U
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- sand
- liner plate
- sandbox
- vacuum dry
- case surrounding
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Abstract
The utility model relates to sand to cast manufacturing, about a kind of vacuum dry moulding sandbox, it is by stacking feeding head on casting type chamber and coupling gate system, sand core is put in upper and lower case sand mold, air exhaust nozzle, hanging box handle, box fastener are fixed on case surrounding outer wall, the fixed porous liner plate of case surrounding inner wall inner layer, is embedded in gauze between liner plate and outer boxboard, sand mold appearance cover expires the major parts such as overlay film composition.Using the sandbox, V method production line vacuum plant is utilized.Moulding is completed with dry sand, paint directly pours into casting.Advantage is that moisture is very low in sand, and bleb is few, and molding sand is recycled, and for utilization rate up to 98% or more, it is at low cost to compare self-curing mo(u)ld for short production cycle, Green foundry, harmonious environment.
Description
Technical field
The utility model relates to sand to cast manufacturing, utilize V using the sandbox about a kind of vacuum dry moulding sandbox
Method production line vacuum plant, vacuumizes and blots sand completion moulding, and paint directly pours into casting.Advantage is moisture in sand
Very low, bleb is few, and molding sand is recycled, and utilization rate is up to 98% or more, with short production cycle, Green foundry, harmonious environment,
It is at low cost compared to self-curing mo(u)ld.
Background technique
Sand casts manufacturing to large valve body casting, conventional hard sand mold casting, the disadvantage is that moisture height in sand, is wanted after moulding
It bakes, the defects of casting still has stomata, crackle, shrinkage porosite, molding sand is recycled that processing cost is high, and reusing rate is not achieved
70%, the production cycle is long, and environment is poor, at high cost.
Summary of the invention
The purpose of the utility model is to provide a kind of vacuum dry moulding sandboxes to be taken out true using V method production line vacuum plant
Suction dry sand completes moulding, and paint directly pours into casting.Advantage is that moisture is very low in sand, and bleb is few, molding sand
It is recycled, for utilization rate up to 98% or more, it is at low cost to compare self-curing mo(u)ld for short production cycle, Green foundry, harmonious environment.
Technical solutions of the utility model are as follows: a kind of vacuum dry moulding sandbox is by stacking feeding head on casting type chamber
And couple gate system, sand core is put in top box, nowel sand mold, and air exhaust nozzle, hanging box handle, box fastener are fixed on case surrounding outer wall,
The fixed porous liner plate of case surrounding inner wall inner layer, is embedded in gauze between liner plate and outer boxboard, air exhaust nozzle connection liner plate and outer boxboard it
Between space, sand mold appearance cover expires the major parts such as overlay film composition: the fixed porous liner plate of case surrounding inner wall inner layer, on porous liner plate
Densely covered hole is ф 20-30mm according to the big small-bore of sandbox: mesh number≤240 of gauze (8) are embedded between liner plate and outer boxboard
Mesh.
The positive effect of the present invention is:
It the use of the utility model advantage is that moisture is very low in sand, bleb is few, and molding sand is recycled, and utilization rate reaches
98% or more, with short production cycle, Green foundry, harmonious environment is cast at low cost compared to self-hardening sand.
Detailed description of the invention
Fig. 1 is utility model diagram
Wherein: 1, casting, 2, feeding head, 3, cast gate, 4, sand core, 5, top box, 6, nowel,
7, air exhaust nozzle, 8, gauze, 9, overlay film, 10, sand mold, 11, hanging box handle, 12, box fastener.
Specific embodiment
This vacuum dry moulding sandbox is manufactured, is by stacking feeding head 2 on 1 type chamber of casting and to couple 3 system of cast gate,
Sand core 4 is put in top box 5, nowel 6, sand mold 10, and air exhaust nozzle 7, hanging box are fixed on case surrounding outer wall 11, box fastener 12, case four
The fixed porous liner plate of all inner wall inner layers, is embedded in gauze 8, between 7 connection liner plate of air exhaust nozzle and outer boxboard between liner plate and outer boxboard
Space, sand mold appearance cover expire the major parts such as overlay film 9 composition；The fixed porous liner plate of case surrounding inner wall inner layer, on porous liner plate
Densely covered hole is ф 20-30mm according to the big small-bore of sandbox；Mesh number≤240 of gauze (8) are embedded between liner plate and outer boxboard
Mesh.When moulding, on V method banker, after ajusting mold, feeding head 2 is discharged on mold and couples 3 system of cast gate and covers full
Overlay film fills up dry sand, starts vacuum machine, and from air in sand mold 10 is siphoned away in air exhaust nozzle 7, sand grains becomes whole, completion top box 5,
After 6 moulding of nowel, sand core 4 is put into nowel 6, top box 5, upper hanging box is caught on 11 mould assembling, locks top box 5,6 box fastener of nowel,
It is combined into vacuum dry moulding sandbox.
Claims (3)
1. a kind of vacuum dry moulding sandbox, it is characterised in that: be by stacking feeding head (2) on casting (1) type chamber and coupling
Cast gate (3) system is put sand core (4) in top box (5), nowel (6) sand mold (10), fixed on case surrounding outer wall air exhaust nozzle (7),
Hanging box is embedded in (11), box fastener (12), case surrounding inner wall inner layer fixed porous liner plate gauze (8) between liner plate and outer boxboard, takes out
Space between gas nozzle (7) connection liner plate and outer boxboard, sand mold appearance cover expire overlay film (9).
2. a kind of vacuum dry moulding sandbox according to claim 1, it is characterised in that: the hole gathered on porous liner plate, root
It is ф 20-30mm according to the big small-bore of sandbox.
3. a kind of vacuum dry moulding sandbox according to claim 1, it is characterised in that: yarn is embedded between liner plate and outer boxboard
The mesh number of net (8)≤240 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821027656.2U CN208555911U (en) | 2018-07-01 | 2018-07-01 | A kind of vacuum dry moulding sandbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821027656.2U CN208555911U (en) | 2018-07-01 | 2018-07-01 | A kind of vacuum dry moulding sandbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208555911U true CN208555911U (en) | 2019-03-01 |
Family
ID=65489834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821027656.2U Active CN208555911U (en) | 2018-07-01 | 2018-07-01 | A kind of vacuum dry moulding sandbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208555911U (en) |
-
2018
- 2018-07-01 CN CN201821027656.2U patent/CN208555911U/en active Active
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