CN107186176A - A kind of lower mould of bearing block precoated sand mould - Google Patents
A kind of lower mould of bearing block precoated sand mould Download PDFInfo
- Publication number
- CN107186176A CN107186176A CN201710474853.2A CN201710474853A CN107186176A CN 107186176 A CN107186176 A CN 107186176A CN 201710474853 A CN201710474853 A CN 201710474853A CN 107186176 A CN107186176 A CN 107186176A
- Authority
- CN
- China
- Prior art keywords
- die cavity
- mould
- interior
- arenaceous shell
- lower template
- 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.)
- Withdrawn
Links
- 239000004576 sand Substances 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000005266 casting Methods 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 8
- 244000035744 Hura crepitans Species 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/20—Stack moulds, i.e. arrangement of multiple moulds or flasks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
A kind of lower mould of bearing block precoated sand mould, belongs to plant equipment production field, including lower template, lower outer die cavity, lower interior die cavity, positioning hole, sand inlet, passage, mounting hole；Described lower template is located at the periphery of lower outer die cavity；Described lower outer die cavity is located on the outside of the inside of lower template；Described lower interior die cavity is located at the interior of lower template；Described positioning hole is located in lower template；Described sand inlet is arranged in the lower template on lower outer die cavity top, while being connected with lower external form intracavitary portion and lower inner mold intracavitary portion；Described passage is arranged in lower template, and the overflow ducts between lower outer die cavity and lower interior die cavity are connected；Described mounting hole is arranged in lower template, is matched with the installing plate of automatic arenaceous shell forming machine, with can efficiently realize the production of bearing block blank, save material and artificial, reduce machining amount, reduce casting flaw, improve yield rate, the characteristics of easily realizing automated production.
Description
Technical field
The invention belongs to plant equipment production field, more particularly to a kind of lower mould of bearing block precoated sand mould.
Background technology
Bearing block is the support member of bearing, generally into case shape；As shown in figure 1, bearing block inner chamber needs to adapt to bearing
The shape of outer ring, bearing block shell needs to adapt to various installation environments, so its structure and shape matching are complicated, its producer is big
Many method production blanks using metal casting, are then being machined, to obtain more preferable stability and processing essence
Degree；Existing bearing block blank is cast using cast iron mostly, and its casting method is first according to bearing block design drawing, choosing
Select suitable die joint, make profile and bearing block shape identical built-up pattern, this built-up pattern mostly using die joint as
Boundary is as the faying face of built-up pattern, and this model is mostly wooden or aluminum is to carry and to process；Second, by model
Sandbox is put into, foundry sand is inserted and tamps, sandbox is separated into taking-up model, shape is formed in the middle of the sand in sandbox
With model identical cavity, then produce pouring channel and rising head just complete casting before sand mold make；3rd, sand mold is entered
After the appropriate drying of row, sandbox is closed up, casting molten metal is poured into from pouring channel；4th, sandbox is removed after cooling, will
Sand mold is crushed, and takes out casting, is taken out cast gate and rising head, is just completed the making of bearing block blank；Because molten iron is poured into sand mold
When, there is expansive force to sand mold in molten iron, and sand mold is relatively soft, will cause the shape of sand mold inner chamber is produced to change, and this change
Change is uncertain, and the appearance and size for resulting in the blank cast out is not known；The characteristics of due to process above, its casting method
There is operative's amount of labour greatly, it is high to the skilled operation skill set requirements of workman, it is desirable to which that working area is big, and operating environment is poor, powder
Dirt is big, and cast(ing) surface material roughness value is high, reserves processing capacity greatly, waste of raw materials, flexible type, the qualified low defect of yield rate.
The content of the invention
The above mentioned problem existed is produced for existing bearing block blank, the present invention proposes a kind of blank manufacturer of bearing block
Method, it is characterised in that：Comprise the following steps：First, according to the design drawing of bearing block, by bearing block be divided into above and below two parts, point
Do not manufacture and design bearing block precoated sand mould；2nd, the precoated sand mould of bearing block is put on automatic moulding machine and produces overlay film
Sand pours into a mould arenaceous shell model；3rd, pour into a mould；4th, take out casting and clear up.
Bearing block precoated sand mould described in described step one refer to using ferrous materials be made be used for make sand
The mould of shell model；It is characterized in that：Including upper mould, lower mould；Described upper mould is used for the shape for making the top of bearing block；Institute
The lower mould stated is used for the shape for making the bottom of bearing block；After described upper mould closes up with lower mould, complete bearing block is formed
Overall shape.
Described upper mould, it is characterised in that：Including cope plate, upper outer die cavity, upper interior die cavity, positioning hole, sand inlet, ventilation
Hole, mounting hole, gate core, rising head core；Described cope plate is located at the periphery of upper outer die cavity, is made up of ferrous materials；Described
Upper outer die cavity is located on the outside of the inside of cope plate；The shape of described upper outer die cavity and the outer loop-shaped on the die joint top of arenaceous shell
It is identical；The size of described upper outer die cavity is equal to appearance and size the setting plus arenaceous shell of the outer perimeter section on the die joint top of arenaceous shell
Count thickness；Described upper interior die cavity is located at the interior of cope plate；The shape and the die joint of arenaceous shell of described upper interior die cavity
The interior loop-shaped on top is identical；The size of described upper interior die cavity is equal to the profile chi of the inner round portion on the die joint top of arenaceous shell
The very little design thickness plus arenaceous shell；The quantity of described upper interior die cavity has four, is uniformly arranged in described upper outer die cavity
Side；Described positioning hole is located on cope plate, after being aligned with the positioning hole in lower template, and its interior chamber size formation arenaceous shell size adds
Upper arenaceous shell thickness；Described sand inlet is arranged on the cope plate on outer die cavity top, at the same with upper external form intracavitary portion and
Upper inner mold intracavitary portion connection；Described passage is arranged on cope plate, and the overflow between upper outer die cavity and upper interior die cavity is led to
Road is connected；Described mounting hole is arranged on cope plate, is matched with the installing plate of automatic arenaceous shell forming machine；Described gate core is set
Put on cope plate, on the outside of upper external form intracavitary side, upper interior die cavity；Described rising head core is arranged on cope plate, positioned at upper
On the outside of external form intracavitary side, upper interior die cavity.
Described lower mould, it is characterised in that：Including lower template, lower outer die cavity, lower interior die cavity, positioning hole, sand inlet, ventilation
Hole, mounting hole；Described lower template is located at the periphery of lower outer die cavity, is made up of ferrous materials；Under described lower outer die cavity is located at
On the outside of the inside of template；The shape of described lower outer die cavity is identical with the outer loop-shaped of the die joint bottom of arenaceous shell；Under described
The size of outer die cavity is equal to design thickness of the appearance and size plus arenaceous shell of the outer perimeter section of the die joint bottom of arenaceous shell；Described
Die cavity is located at the interior of lower template in lower；The shape of described lower interior die cavity and the interior loop-shaped of the die joint bottom of arenaceous shell
It is identical；The size of described lower interior die cavity is equal to appearance and size the setting plus arenaceous shell of the inner round portion of the die joint bottom of arenaceous shell
Count thickness；The quantity of described lower interior die cavity has four, is uniformly arranged in the inner side of described lower outer die cavity；Described positioning hole
In lower template, after being aligned with the positioning hole on cope plate, its interior chamber size formation arenaceous shell size adds arenaceous shell thickness；
Described sand inlet is arranged in the lower template on lower outer die cavity top, while connecting with lower external form intracavitary portion and lower inner mold intracavitary portion
It is logical；Described passage is arranged in lower template, and the overflow ducts between lower outer die cavity and lower interior die cavity are connected；Described peace
Dress hole is arranged in lower template, is matched with the installing plate of automatic arenaceous shell forming machine.
Described attribute block, it is characterised in that：Including block, mark；Described block is arranged on described lower mould；Institute
The traffic sign placement stated is on the upper surface of described block.
The making of arenaceous shell in described step two refers to bearing block precoated sand mould being placed on arenaceous shell forming machine,
Its internal injection precoated sand pressurized, heated sizing and solidifying, formed bearing block cast processed with certain thickness interior chamber size and
Bearing block appearance and size identical cavity body.
Arenaceous shell automatic moulding machine in described step two is a kind of double precoated sand arenaceous shell automatic moulding machine, its feature
It is：Including right mould frame, frame, hydraulic system, mould bases mobile device, mould bases plate, compressed air system, control system, sandbox,
Sand hopper, left mould frame；Described right mould frame is arranged on mould bases mobile device right-hand member, including mould bases plate, Die and mould plate, guiding support bar；
Described frame include base, support, described floor installation is in the bottom of double precoated sand arenaceous shell automatic moulding machine；It is described
Support be arranged on base on；Described hydraulic system includes hydraulic station, control element, hydraulic cylinder；Described mould bases movement dress
Put on base, including mobile work platform；Described mobile work platform can on base transverse shifting；Described mould bases
Plate is arranged on the two ends of left mould frame and right mould frame, is connected respectively with guiding support bar two ends；Described compressed air system includes
Source of the gas, air accumulator, cylinder；Described control system includes controller, sensor, programmer, parameter setting apparatus；Described
Sandbox is arranged in frame；Described sand hopper is arranged on the top of left mould frame and right mould frame；Described left mould frame is arranged on mould bases
The left end of mobile device and right mould frame are symmetrical.
Described step three refers to that cast meets bearing block material into proportioning at the cavity for the precoated sand arenaceous shell made
The molten iron of the fusing of matter component requirements.
Described step four be by pour be poured in molten iron precoated sand arenaceous shell cooling after it is naturally defeated and dispersed, taking-up inner casts, clearly
Cast gate, rising head, and residual impurity are managed, is heat-treated and is machined into next process.
Beneficial effect
The beneficial effects of the present invention are can efficiently realize the production of bearing block blank, save material and artificial, reduce machinery
Processing capacity, reduces casting flaw, improves yield rate, easily realizes automated production.
Brief description of the drawings
Fig. 1 is the structural representation of bottom bracket of the present invention
A. bearing block inner chamber；B. bearing block shell.
Fig. 2 is the structural representation of bearing block precoated sand mould
1. on mould；2. lower mould；3. attribute block.
Fig. 3 is the structural representation of the upper mould of precoated sand mould
10. cope plate；11. on outer die cavity；12. in die cavity；13. positioning hole；14. sand inlet；15. passage；16. install
Hole；17. gate core；18. rising head core.
Fig. 4 is the structural representation of the lower mould of precoated sand mould
20. lower template；21. lower outer die cavity；22. lower interior die cavity；23. positioning hole；24. sand inlet；25. passage；26. install
Hole.
Fig. 5 is the structural representation of the attribute block of precoated sand mould
31. block；32. mark.
Embodiment
In order to further illustrate technical scheme, in conjunction with embodiment of the invention is illustrated, such as
Fig. 1 to Fig. 4, according to the design drawing of bearing block, in this example by taking small-size shaft bearing as an example, the quantity for choosing bearing block is four,
It is uniformly arranged, the appearance and size of bearing block is amplified 8-12 millimeters, makes and bearing block is selected in bearing block precoated sand mould, this example
Horizontal centre plane as cast die joint, using die joint as boundary, by bearing block precoated sand mould using bearing block die joint as
Mould 1 and lower mould 2 are produced respectively in center；On upper mould 1 in this example using the steel plate of 50 millimeters of thickness as cope plate 10,
Outer die cavity 11, upper interior die cavity 12, positioning hole 13, sand inlet 14, passage 15, mounting hole are produced on cope plate 10 respectively
16, gate core 17, rising head core 18, and be engaged with lower mould 2, the same steel plate from 50 millimeters of thickness makes the lower mould of lower mould 2
Plate 20, and lower outer die cavity 21, lower interior die cavity 22, positioning hole 23, sand inlet 24, passage are produced in lower template 20 respectively
25, mounting hole 26 makes the block 31 of attribute block 3 from 10 millimeters of steel plate of thickness, and processes mark 32 on block 31, will
Attribute block 3 is arranged on mould 1, and upper mould 1 and the die cavity open face of lower mould 2 are closed up relatively, inserts fixed respectively using alignment pin
Position hole 18 and positioning hole 28, fix its position, constitute bearing block precoated sand mould；Use and made simultaneously per mold in this example
The arenaceous shell of the upper and lower part of bearing block；The arenaceous shell for the bearing block made is placed on cast place, by the fusing matched
Molten iron is poured into arenaceous shell, after cooling, opens arenaceous shell, takes out casting, cast gate and rising head is removed, and clear up miscellaneous on spray
Matter, just completes the production of the blank of bearing block.
It because the production of arenaceous shell and core is automated production, can produce in enormous quantities, overcome clay-bonded sand or resin sand
The complexity of moulding, saves a large amount of Foundry quartz sands, reduces production cost and labor intensity；While arenaceous shell die life
It is long, overcome wooden model or the short-life shortcoming of aluminum dipping form.
Claims (1)
1. a kind of lower mould of bearing block precoated sand mould, it is characterised in that：Including lower template, lower outer die cavity, lower interior die cavity, positioning
Hole, sand inlet, passage, mounting hole；Described lower template is located at the periphery of lower outer die cavity, is made up of ferrous materials；Described
Lower outer die cavity is located on the outside of the inside of lower template；The shape of described lower outer die cavity and the outer loop-shaped of the die joint bottom of arenaceous shell
It is identical；The size of described lower outer die cavity is equal to appearance and size the setting plus arenaceous shell of the outer perimeter section of the die joint bottom of arenaceous shell
Count thickness；Described lower interior die cavity is located at the interior of lower template；The shape and the die joint of arenaceous shell of described lower interior die cavity
The interior loop-shaped of bottom is identical；The size of described lower interior die cavity is equal to the profile chi of the inner round portion of the die joint bottom of arenaceous shell
The very little design thickness plus arenaceous shell；The quantity of described lower interior die cavity has four, is uniformly arranged in described lower outer die cavity
Side；Described positioning hole is located in lower template, after being aligned with the positioning hole on the cope plate of the upper mould of bearing block precoated sand mould,
Its interior chamber size formation arenaceous shell size adds arenaceous shell thickness；Described sand inlet is arranged on the lower template on lower outer die cavity top
On, while being connected with lower external form intracavitary portion and lower inner mold intracavitary portion；Described passage is arranged in lower template, with lower outer die cavity
Overflow ducts connection between lower interior die cavity；Described mounting hole is arranged in lower template, the peace with automatic arenaceous shell forming machine
Fill plate matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474853.2A CN107186176A (en) | 2017-06-21 | 2017-06-21 | A kind of lower mould of bearing block precoated sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474853.2A CN107186176A (en) | 2017-06-21 | 2017-06-21 | A kind of lower mould of bearing block precoated sand mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107186176A true CN107186176A (en) | 2017-09-22 |
Family
ID=59879420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474853.2A Withdrawn CN107186176A (en) | 2017-06-21 | 2017-06-21 | A kind of lower mould of bearing block precoated sand mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107186176A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728648A (en) * | 2016-03-21 | 2016-07-06 | 禹州市昆仑模具有限公司 | Method for manufacturing blank of pipe clamp |
-
2017
- 2017-06-21 CN CN201710474853.2A patent/CN107186176A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728648A (en) * | 2016-03-21 | 2016-07-06 | 禹州市昆仑模具有限公司 | Method for manufacturing blank of pipe clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170922 |
|
| WW01 | Invention patent application withdrawn after publication |