CN108296443A - A kind of excavator shell casting sand mold hollow molding device - Google Patents
A kind of excavator shell casting sand mold hollow molding device Download PDFInfo
- Publication number
- CN108296443A CN108296443A CN201810368898.6A CN201810368898A CN108296443A CN 108296443 A CN108296443 A CN 108296443A CN 201810368898 A CN201810368898 A CN 201810368898A CN 108296443 A CN108296443 A CN 108296443A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sand mold
- sand
- shell casting
- molding device
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 46
- 238000005266 casting Methods 0.000 title claims abstract description 27
- 238000000465 moulding Methods 0.000 title claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims abstract description 4
- 244000035744 Hura crepitans Species 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 36
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of excavator shell casting sand mold hollow molding devices, including cylinder, hanging ring and cover board, the cylinder is rolled by steel plate to be welded, multiple gas vents are evenly arranged on the cylinder, the hanging ring is by plain bar cold bending, and it is welded on cylinder inboard wall, it is suitable for reading that the cover board is covered in cylinder, and is flexibly connected with cylinder.In phenolic sand molding, it is placed in sand mold and keep around and bottom and core cavity there are enough mold thickness cylinder, to obtain hollow sand mold.The configuration of the present invention is simple, it is easy to operate, can Reusability, cost saved molding resin sand dosage, reduce production cost.
Description
Technical field
The invention belongs to machine casting fields, and in particular to a kind of excavator shell casting sand mold hollow molding device.
Background technology
Shell is the important spare part in excavator, as shown in Figure 1, the knot with relatively deep larger basin shape and uniform wall thickness
Structure feature, such casting internal diameter is in Ф 500~Ф 1000mm, and depth is in 500~800mm, and main wall thickness is in 15~25mm, weight
In 100~300Kg, generally up and furan resin-sand is codded formative technology production using shell flange.Due to shell casting
Inner cavity it is relatively deep larger, cod larger, casting top box sand mold is heavier, needs to consume more resin sand dosages, production cost compared with
It is high.Need thus it is a kind of will cod and top box sand mold makes hollow building mortion, save resin sand production cost.
Invention content
It is hollow that a kind of excavator shell casting sand mold is provided the purpose of the invention is to overcome the deficiencies in the prior art
Molding machine.
In order to achieve the above objectives, the technical solution adopted in the present invention is：Including cylinder, hanging ring and cover board, feature exists
In：The cylinder is rolled by steel plate to be welded, and multiple gas vents is evenly arranged on the cylinder, the hanging ring is by light round steel
Muscle cold bending, and be welded on cylinder inboard wall, it is suitable for reading that the cover board is covered in cylinder, and is flexibly connected with cylinder.
Preferably, the cylinder is placed in resin sand sand mold and keeps the mold thickness of around and bottom and core cavity
For 50~80mm.
Preferably, the cylinder is placed in resin sand sand mold and to keep cylinder suitable for reading equal with sandbox top surface.
Preferably, a diameter of 5~10mm of the gas vent.
Preferably, the cover board is made of 2~3mm steel plates or three-ply board material.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention is placed in resin sand sand mold and keeps around and bottom and core cavity to have enough eat by cylinder is shaped
Sand amount and obtain hollow sand mold, tube structure is simple, easy to operate, can Reusability, cost saved molding resin sand
Dosage reduces production cost.
Description of the drawings
Attached drawing 1 is excavator shell casting structure sectional view；
Attached drawing 2 is a kind of tube structure sectional view of excavator shell casting sand mold hollow molding device of the present invention；
Attached drawing 3 is the vertical view of Fig. 2；
Attached drawing 4 is a kind of modeling structure sectional view of excavator shell casting sand mold hollow molding device of the present invention.
Wherein, 1-cylinder；2-hanging rings；3-cover boards；4-gas vents；5-shell castings；51-core cavities；6—
Sandbox；7-die joints；8-cope plates；9-cod；10-upper sand molds.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
With reference to Fig. 2, Fig. 3, Fig. 4, the present invention provides a kind of technical solution：Including cylinder 1, hanging ring 2 and cover board 3, wherein cylinder
Body 1 is rolled by steel plate to be welded, and is evenly arranged with multiple gas vents 4 on cylinder 1, hanging ring 2 by plain bar cold bending,
And it is welded on 1 inner wall of cylinder, it is suitable for reading that the cover board 3 is covered in cylinder 1, and is flexibly connected with cylinder 1.
According to the bathtub construction size and weight size of shell casting 5,1 size of cylinder is varied from, cylinder 1 is set with the shape
In resin sand sand mold and 1 periphery of cylinder and bottom and the mold thickness of core cavity 51 is kept to be designed as：100Kg casting eats sand
Amount is 50mm, and the mold thickness of 200Kg casting is 65mm, and the mold thickness of 300Kg casting is 80mm.
Cylinder 1 is placed in resin sand sand mold and keeps cylinder 1 suitable for reading equal with 6 top surface of sandbox, is scraped convenient for moudling scraper
Flat sand mold operation.
When putting sand molding using continuous resin sand mixer, it is suitable for reading that cover board 3 is placed in cylinder 1, prevents resin sand from flowing into
In cylinder 1, resin sand dosage is wasted.
Multiple Ф 8mm gas vents 4 are uniformly arranged on 1 periphery of cylinder and bottom, sand mold exhaust is unimpeded when being conducive to pour into a mould,
Prevent casting from generating gas hole defect.
In the present embodiment, a kind of moulding production method of excavator shell casting sand mold hollow molding device, including it is following
Step：
（1）Cylinder 1 is made, welding hanging ring 2 makes cover board 3, and gas vent 4 is bored on cylinder 1；
（2）10 sandbox 6 of upper sand mold is placed on the die joint 7 of the cope plate 8 of shell casting 5；
（3）Cope plate 8 pit cod 9 bottom surface at put one layer of resin sand and eat layer of sand；
（4）By cylinder 1 be positioned over pit cod 9 bottom center, keep 1 periphery of cylinder and core cavity apart from equal, and make
Cylinder 1 is suitable for reading equal with 6 top surface of sandbox；
（5）Put sand molding, with resin sand will cod 9 and 10 sandbox 6 of upper sand mold fill up and shake consolidation；
（6）10 sandbox of upper sand mold, 6 top surface resin sand is struck off with scraper plate, cover board 3 is removed in the molding after resin sand hardening, i.e., complete
It is made at shell casting sand mold hollow molding moulding.
In the present embodiment, excavator shell casting 5 is circle basin shape, and hollow formed cylinder body 1 is designed as cylindrical shape, and cylinder
Body 1 is arranged in upper sand mold 10.
According to the pouring position of basin shaped cast part, cylinder 1 can be arranged in lower sand mold.
Basin shaped cast part be pit casting, hollow formed cylinder body 1 with the shape design, can justify can abnormity, may be provided at
In sand mold 10 or lower sand mold, Foundry quartz sand is greatly saved, reduces production cost.
Claims (4)
1. a kind of excavator shell casting sand mold hollow molding device, including cylinder（1）, hanging ring（2）And cover board（3）, feature
It is：The cylinder（1）It is rolled and is welded by steel plate, multiple gas vents are evenly arranged on the cylinder（4）, the hanging ring
（2）By plain bar cold bending, and it is welded on cylinder（1）Inner wall, the cover board（3）It is covered in cylinder（1）It is suitable for reading, and with cylinder
Body（1）Flexible connection.
2. a kind of excavator shell casting sand mold hollow molding device according to claim 1, the cylinder（1）It is placed in resin
In sand sand mold and keep cylinder（1）Periphery and bottom and core cavity（51）Mold thickness be 50~80mm.
3. a kind of excavator shell casting sand mold hollow molding device according to claim 1, it is characterised in that：The cylinder
（1）It is placed in resin sand sand mold and keeps cylinder（1）Suitable for reading and sandbox（6）Top surface is equal.
4. a kind of excavator shell casting sand mold hollow molding device according to claim 1, it is characterised in that：The exhaust
Hole（4）A diameter of 5~10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368898.6A CN108296443A (en) | 2018-04-23 | 2018-04-23 | A kind of excavator shell casting sand mold hollow molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368898.6A CN108296443A (en) | 2018-04-23 | 2018-04-23 | A kind of excavator shell casting sand mold hollow molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108296443A true CN108296443A (en) | 2018-07-20 |
Family
ID=62848606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810368898.6A Pending CN108296443A (en) | 2018-04-23 | 2018-04-23 | A kind of excavator shell casting sand mold hollow molding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108296443A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317626A (en) * | 2018-11-14 | 2019-02-12 | 安徽应流集团霍山铸造有限公司 | A kind of moulding bed device reducing Foundry quartz sand |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071079A (en) * | 1992-07-30 | 1995-01-06 | Masaru Nemoto | Special molding core |
| CN201389615Y (en) * | 2009-04-24 | 2010-01-27 | 江苏钢锐精密机械有限公司 | Packed iron ball |
| CN103182476A (en) * | 2013-04-03 | 2013-07-03 | 阳城县煜锟铸造厂 | Technique for producing large and medium-sized cylindrical iron castings through clay green sand molding |
| CN203343372U (en) * | 2013-06-28 | 2013-12-18 | 吴江市元盛冶金铸造有限公司 | Die inner core for sand casting of valve body |
| CN203791573U (en) * | 2014-02-19 | 2014-08-27 | 东风汽车有限公司 | Sand-saving device |
| CN105108072A (en) * | 2015-07-31 | 2015-12-02 | 共享铸钢有限公司 | Tool for reducing casting molding sand-iron ratio |
| CN206122638U (en) * | 2016-09-02 | 2017-04-26 | 滁州市鑫鼎机械模具制造有限公司 | Die inner core for sand casting of valve body |
| CN208083356U (en) * | 2018-04-23 | 2018-11-13 | 溧阳市联华机械制造有限公司 | A kind of excavator shell casting sand mold hollow molding device |
-
2018
- 2018-04-23 CN CN201810368898.6A patent/CN108296443A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071079A (en) * | 1992-07-30 | 1995-01-06 | Masaru Nemoto | Special molding core |
| CN201389615Y (en) * | 2009-04-24 | 2010-01-27 | 江苏钢锐精密机械有限公司 | Packed iron ball |
| CN103182476A (en) * | 2013-04-03 | 2013-07-03 | 阳城县煜锟铸造厂 | Technique for producing large and medium-sized cylindrical iron castings through clay green sand molding |
| CN203343372U (en) * | 2013-06-28 | 2013-12-18 | 吴江市元盛冶金铸造有限公司 | Die inner core for sand casting of valve body |
| CN203791573U (en) * | 2014-02-19 | 2014-08-27 | 东风汽车有限公司 | Sand-saving device |
| CN105108072A (en) * | 2015-07-31 | 2015-12-02 | 共享铸钢有限公司 | Tool for reducing casting molding sand-iron ratio |
| CN206122638U (en) * | 2016-09-02 | 2017-04-26 | 滁州市鑫鼎机械模具制造有限公司 | Die inner core for sand casting of valve body |
| CN208083356U (en) * | 2018-04-23 | 2018-11-13 | 溧阳市联华机械制造有限公司 | A kind of excavator shell casting sand mold hollow molding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317626A (en) * | 2018-11-14 | 2019-02-12 | 安徽应流集团霍山铸造有限公司 | A kind of moulding bed device reducing Foundry quartz sand |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180720 |
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