CN106111897A - A kind of vertical back-up sand, the butterfly valve core box of polygon location - Google Patents
A kind of vertical back-up sand, the butterfly valve core box of polygon location Download PDFInfo
- Publication number
- CN106111897A CN106111897A CN201610716505.7A CN201610716505A CN106111897A CN 106111897 A CN106111897 A CN 106111897A CN 201610716505 A CN201610716505 A CN 201610716505A CN 106111897 A CN106111897 A CN 106111897A
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- CN
- China
- Prior art keywords
- core box
- core
- sand
- butterfly valve
- polygon
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of vertical back-up sand, the butterfly valve core box of polygon location, including core box lower half and the core box first half, described core box first half die cavity is the polygonized structure mated with polygon external mold core print, and back-up sand mouth is arranged on the top of the described core box first half, two core box first half docking constitute ring-type.A kind of vertical back-up sand of present invention offer, the butterfly valve core box of polygon location, be designed to polygon by core box and external mold core print, utilize polygon corner angle this features many, during mould assembling, be accurately positioned core by corner angle；Back-up sand direction is arranged on core case top, scrapes the pattern draft corresponding with external mold core print with scraper plate, it is ensured that the butterfly valve flange root sand degree of packing, simplify manual operations difficulty；Being the flange of 20mm 25mm by tape thickness in butterfly valve core box, and be fixed on core box lower half, it is tightly blocked by the core box first half, it is ensured that the flange home record size of core and surface quality.
Description
Technical field
The present invention relates to butterfly valve casting mould technical field, particularly relate to a kind of vertical back-up sand, the butterfly of polygon location
Valve core box and the method using this butterfly valve core box making butterfly valve core.
Background technology
At present, at valve casting industry, in order to obtain the flange form butterfly valve foundry goods of high-quality, foundry enterprise is typically chosen butterfly
Valve body moulding keeps flat two-part mo(u)lding technique, and this technique often need to place core between two flanges.Most of valves are cast
Enterprise, the commonly used traditional manual core making of coremaking operation, and manual core making is when making butterfly type valve core, have 1. that core is not
Easily it is accurately positioned；The ②Liang flange corner sand degree of packing is inadequate, causes molten steel to sinter scab；3. core is easily beaten swollen, core and is filled out
Sand face is of poor quality, easily causes two flange home record carpenters squares cun anthropic factor and does not meets three kinds of situations such as drawing requirement, causes process to be grasped
Make difficulty to strengthen and postorder cleaning difficulty；Time serious, foundry goods cannot use because of dimensional problem.
Summary of the invention
The technical problem to be solved is: in order to overcome deficiency of the prior art, and the present invention provides a kind of vertical
Formula back-up sand, the butterfly valve core box of polygon location.
The technical scheme that the present invention solves its technical problem to be taken is: a kind of vertical back-up sand, the butterfly of polygon location
Valve core box, including core box lower half and the core box first half, described core box first half die cavity is to mate with polygon external mold core print
Polygonized structure, and back-up sand mouth is arranged on the top of the described core box first half, two core box first half docking constitute ring-type.By core
Box and external mold core print are designed to polygon, utilize polygon corner angle this features many, during mould assembling, are accurately positioned by corner angle profile
Core；From the top back-up sand of the core box first half, at back-up sand, position contacts with external mold core print, does not exist and steel contacts, the most not
Affecting casting dimension and quality, it addition, core is equally divided into two halves along the axis of butterfly valve valve rod, back-up sand mouth is arranged on and butterfly valve valve
The place that rod axis position is farthest, top back-up sand ensure that the sand degree of packing of flange root corner.
Further, the scraper plate for scraping the pattern draft coordinated with external mold core print is also included.Use scraper plate that core is scraped
Go out pattern draft, it is ensured that any one part of core and external mold core print are all in clearance fit state.
Further, also include that lacing wire, described lacing wire extend transversely through the described core box first half.Lacing wire mainly meets technique and sets
Meter is required, when casting solidification, makes two flange uniform shrinkage.
Preferably, described lacing wire is three, and the flange form butterfly valve outer rim along core is circumferentially arranged.One lacing wire in centre,
Two other lacing wire is symmetrically distributed in the both sides of this lacing wire, and the angle of both sides lacing wire and middle lacing wire is 60 °.Lacing wire is mainly
Needed for meeting technological design, when casting solidification, make two flange uniform shrinkage.
Further, described core box lower half and the core box first half are provided with the positioner being mutually matched.
Preferably, described external mold core print is octagon.
The manufacture method of a kind of butterfly valve core, comprises the following steps,
Step 1: core box makes, and external mold core print is designed to polygon core print, further according to requiring to produce corresponding core box,
Described core box includes core box lower half and the core box first half, and the top of the core box first half is provided with back-up sand mouth；
Step 2: manual core making, is first fixed on 1/2 flange form butterfly valve mould on core box lower half, the core box first half
By positioner and the split of core box lower half and by the part flange clamping of flange form butterfly valve, it is then inserted into technique lacing wire, so
After carry out back-up sand from the back-up sand mouth at the top of the core box first half, sand instrument is smash consolidation after completing by back-up sand, finally by scraping
Plate scrape match with external mold core print and pattern draft；
Step 3: core takes out, after waiting core hardening, extracts technique lacing wire out, opens core box, obtain matching with external mold
External mold core；
Step 4: repeat the above steps, makes other half core, and two cores compositions one are ring-type, thus obtain and external mold
The core coordinated.
When mould assembling, two ring-type core matched in clearance of composition are put into nowel sand mold.
Preferably, sand can be consolidated by described flange form butterfly valve mould by being bonded and fixed on core box lower half
Instrument is waddy.
The invention has the beneficial effects as follows: a kind of vertical back-up sand, the butterfly valve core box of polygon location and the butterfly that the present invention provides
The manufacture method of valve core, is designed to polygon by core box and external mold core print, utilizes polygon corner angle this features many, mould assembling
Time, it is accurately positioned core by corner angle；Back-up sand direction is arranged on core case top, scrapes pull out corresponding with external mold core print with scraper plate
Mould gradient, it is ensured that the butterfly valve flange root sand degree of packing, simplifies manual operations difficulty；By tape thickness in butterfly valve core box it is
The flange of 20mm-25mm, and be fixed on core box lower half, it is tightly blocked by the core box first half, it is ensured that core
Flange home record size and surface quality.
Accompanying drawing explanation
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of flange form butterfly valve；
Fig. 2 is the structural representation of flange form butterfly valve；
Fig. 3 is the structural representation of polygon external mold core print；
Fig. 4 is the structural representation of polygon external mold core print；
Fig. 5 is the cross-sectional view of A-A in Fig. 4；
Fig. 6 is the structural representation of the core box first half；
Fig. 7 is the structural representation of preferred embodiment；
Fig. 8 is the schematic flow sheet that core of the present invention makes；
Fig. 9 is the schematic flow sheet that core of the present invention makes.
In figure: 1, core box lower half, 2, the core box first half, 3, external mold core print, 4, back-up sand mouth, 5, scraper plate, 6, lacing wire, 7, method
Blue formula butterfly valve, 8, protruding, 9, groove, 10, interior span, 11, flange, 12, core.
Detailed description of the invention
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is the schematic diagram simplified, and illustrates the most in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
As shown in Figure 1-2, the foundry goods that the present invention relates to is flange form butterfly valve 7, including the round flange at flange form valve body two ends
Needing the interior span 10 strictly control size between 11, and round flange 11, in Fig. 2, H represents the interior span between round flange 11
The distance of 10.
As shown in fig. 3 to 7, a kind of vertical back-up sand of the present invention, the butterfly valve core box of polygon location, including core box lower half 1
With the core box first half 2, the described core box first half 2 die cavity is the polygonized structure mated with octagon external mold core print 3, and back-up sand
Mouth 4 is arranged on the top of the described core box first half 2, and two the core box first half 2 docking constitute ring-type.The core box first half 2 die cavity is
The half of octagon, the axis along flange form butterfly valve 7 valve rod is bisected into two halves, and core box lower half 1 is a flat board.
Also include the scraper plate 5 for scraping the pattern draft coordinated with external mold core print 3.
Also include that lacing wire 6, described lacing wire 6 extend transversely through the described core box first half 2.Preferably, described lacing wire 6 is three,
Flange form butterfly valve 7 outer rim along core 12 is circumferentially arranged.One lacing wire 6 is in centre, and two other lacing wire 6 is symmetrically distributed in this and draws
The both sides of muscle 6, and the angle of both sides lacing wire 6 and middle lacing wire 6 is 60 °.Needed for lacing wire 6 mainly meets technological design, in casting
During part solidification, make two flange 11 uniform shrinkage.
Described core box lower half 1 and the core box first half 2 are provided with the positioner being mutually matched.Location dress in the present embodiment
Be set to be arranged on the projection 8 of core box lower half 1 and be arranged on the core box first half 2 with protruding 8 grooves 9 coordinated, projection 8 and recessed
Groove 9 is two and is symmetrical arranged.
As Figure 8-9, the manufacture method of a kind of butterfly valve core, comprise the following steps,
Step 1: core box makes, and external mold core print 3 is designed to polygon core print, further according to requiring to produce corresponding core
Box, described core box includes core box lower half 1 and the core box first half 2, and the top of the core box first half 2 is provided with back-up sand mouth 4；
Step 2: manual core making, is first fixed on 1/2 flange form butterfly valve 7 mould on core box lower half 1, core box upper half
Portion 2, by positioner and core box lower half 1 split and by part flange 11 clamping of flange form butterfly valve 7, is then inserted into technique
Lacing wire 6, then carries out back-up sand from the back-up sand mouth 4 at the top of the core box first half 2, and sand instrument is smash consolidation after completing by back-up sand,
Scrape finally by scraper plate 5 match with external mold core print 3 and pattern draft；Preferably, flange form butterfly valve 7 mould can be by viscous
Knot is fixed on core box lower half 1, and the instrument that sand consolidates can be selected waddy.
Step 3: core 12 takes out, after waiting core 12 hardening, extracts technique lacing wire 6 out, opens core box, obtain and external mold phase
The external mold core 12 coordinated；
Step 4: repeat the above steps, makes other half core 12, two cores 12 form one ring-type.
When mould assembling, two ring-type core 12 matched in clearance of composition are put into nowel sand mold.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff
Various change and amendment can be carried out completely without departing from the scope of the present invention.The technical scope of this invention is not
The content being confined in description, it is necessary to determine its technical scope according to right.
Claims (6)
1. a vertical back-up sand, the butterfly valve core box of polygon location, it is characterised in that: include on core box lower half (1) and core box
Half portion (2), the described core box first half (2) die cavity is the polygonized structure mated with polygon external mold core print (3), and back-up sand mouth
(4) being arranged on the top of the described core box first half (2), two the core box first half (2) docking constitute ring-type.
Vertical back-up sand the most as claimed in claim 1, the butterfly valve core box of polygon location, it is characterised in that: also include for scraping
Go out the scraper plate (5) of the pattern draft coordinated with external mold core print (3).
Vertical back-up sand the most as claimed in claim 1 or 2, the butterfly valve core box of polygon location, it is characterised in that: also include lacing wire
(6), described lacing wire (6) extends transversely through the described core box first half (2).
Vertical back-up sand the most as claimed in claim 3, the butterfly valve core box of polygon location, it is characterised in that: described lacing wire (6) is
Three, flange form butterfly valve (7) outer rim along core (12) is circumferentially arranged.
Vertical back-up sand the most as claimed in claim 1, the butterfly valve core box of polygon location, it is characterised in that: described core box lower half
Portion (1) and the core box first half (2) are provided with the positioner being mutually matched.
Vertical back-up sand the most as claimed in claim 1, the butterfly valve core box of polygon location, it is characterised in that: described external mold core print
(3) it is octagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716505.7A CN106111897B (en) | 2016-08-24 | 2016-08-24 | A kind of vertical back-up sand, the butterfly valve core box of polygon positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716505.7A CN106111897B (en) | 2016-08-24 | 2016-08-24 | A kind of vertical back-up sand, the butterfly valve core box of polygon positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106111897A true CN106111897A (en) | 2016-11-16 |
| CN106111897B CN106111897B (en) | 2018-03-06 |
Family
ID=57274019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610716505.7A Active CN106111897B (en) | 2016-08-24 | 2016-08-24 | A kind of vertical back-up sand, the butterfly valve core box of polygon positioning |
Country Status (1)
| Country | Link |
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| CN (1) | CN106111897B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513590A (en) * | 2017-01-09 | 2017-03-22 | 浙江欧冶达机械制造有限公司 | High-performance butterfly valve casting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314285A (en) * | 1996-05-24 | 1997-12-09 | Sintokogio Ltd | Method for filling up core sand |
| CN201760561U (en) * | 2010-01-29 | 2011-03-16 | 铜陵祥云消防科技有限责任公司 | Vertical butterfly valve die |
| CN102009126A (en) * | 2010-06-28 | 2011-04-13 | 芜湖新兴铸管有限责任公司 | Base of core box made by large diameter ductile iron pipe |
| CN102139350A (en) * | 2010-01-29 | 2011-08-03 | 铜陵祥云消防科技有限责任公司 | Vertical butterfly valve mould |
| CN202155473U (en) * | 2011-06-22 | 2012-03-07 | 黄石新兴管业有限公司 | Assembling forming die used for casting pipe fitting sand mould |
-
2016
- 2016-08-24 CN CN201610716505.7A patent/CN106111897B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314285A (en) * | 1996-05-24 | 1997-12-09 | Sintokogio Ltd | Method for filling up core sand |
| CN201760561U (en) * | 2010-01-29 | 2011-03-16 | 铜陵祥云消防科技有限责任公司 | Vertical butterfly valve die |
| CN102139350A (en) * | 2010-01-29 | 2011-08-03 | 铜陵祥云消防科技有限责任公司 | Vertical butterfly valve mould |
| CN102009126A (en) * | 2010-06-28 | 2011-04-13 | 芜湖新兴铸管有限责任公司 | Base of core box made by large diameter ductile iron pipe |
| CN202155473U (en) * | 2011-06-22 | 2012-03-07 | 黄石新兴管业有限公司 | Assembling forming die used for casting pipe fitting sand mould |
Non-Patent Citations (1)
| Title |
|---|
| 管士飞: "中大型蝶阀阀体发泡模具CAD及泡沫模样质量控制", 《中国优秀硕士学位论文全文数据库（电子期刊） 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513590A (en) * | 2017-01-09 | 2017-03-22 | 浙江欧冶达机械制造有限公司 | High-performance butterfly valve casting |
| CN106513590B (en) * | 2017-01-09 | 2018-06-15 | 浙江欧冶达机械制造有限公司 | A kind of high-performance butterfly valve casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106111897B (en) | 2018-03-06 |
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