CN105195685A - Novel butterfly valve casting device - Google Patents
Novel butterfly valve casting device Download PDFInfo
- Publication number
- CN105195685A CN105195685A CN201510692660.5A CN201510692660A CN105195685A CN 105195685 A CN105195685 A CN 105195685A CN 201510692660 A CN201510692660 A CN 201510692660A CN 105195685 A CN105195685 A CN 105195685A
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- China
- Prior art keywords
- core
- inner core
- butterfly valve
- outer core
- casting device
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Abstract
The invention discloses a novel butterfly valve casting device. The novel butterfly valve casting device comprises a mould base, an inner core, an outer core, a thermal insulation shell and a close cover, and is characterized in that an annular lug is arranged at the upper end of the mould base, the inner core and the outer core are arranged at the two sides of the annular lug, a shaft bar is arranged at the center of the mould base, the central axes the annular lug, the inner core, the outer core and the shaft bar are overlapped, the height of the shaft bar is higher than that of the inner core, the outer surface of the outer core is provided with the thermal insulation shell, the upper ends of the inner core and the outer core are provided with the close cover, and the upper surface of the close cover is provided with a sprue gate and a dead head. A butterfly valve body, with the bore being larger than 2 meters, special for casting forming is formed in one step, the stability of a product is guaranteed, the roundness is good, no cracks exist on the surface, and the tightness of the valve is greatly improved.
Description
Technical field
The present invention relates to valve body Casting Equipment field, particularly the novel butterfly valve casting device of one.
Background technology
The size of running gate system sectional area has a significant impact casting quality, and sectional area is too little, and the duration of pouring is long, may produce the defects such as underpriming, cold shut, trachoma; Sectional area is excessive, and poring rate is fast, likely causes sand washing, brings slag and gas into, makes foundry goods produce the defect such as cinder hole, pore.In order to make molten metal with suitable speed filling cast, the area of running gate system just rationally must be determined.
The butterfly valve body being greater than diameter 2 meters sold in the market all adopts Plate Welding to form, the unspecial equipment for casting butterfly valve body, the butterfly valve body be welded is adopted to there is following drawback: durability is lower, corrosion resistance and stability are all poor, seriously reduce the sealing property of valve, need often to carry out inspection and maintenance to it.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novel butterfly valve casting device, to solve the above-mentioned multinomial defect caused in prior art.
For achieving the above object, the invention provides following technical scheme: a kind of novel butterfly valve casting device, comprise mold base, inner core, outer core, lagging casing and capping composition, it is characterized in that, described mold base upper end is provided with annular lug, described inner core and described outer core are arranged on the both sides of annular lug, axle thick stick is provided with at the center of described mold base, described annular lug, inner core, the central axes of outer core and axle thick stick, the height of described axle thick stick is greater than the height of inner core, the outer surface of described outer core is provided with lagging casing, the upper end of described inner core and described outer core is provided with capping, sprue gate and rising head is provided with above described capping.
Preferably, the height of described inner core and described outer core is equal.
Preferably, described inner core is loop configuration, and forms in fan-shaped inner core core box by least two.
Preferably, described outer core is loop configuration, and forms in fan-shaped outer core core box by least two.
Preferably, the upper surface of described annular lug is evenly inlaid with chill.
The beneficial effect of above technical scheme is adopted to be: the butterfly valve body that the bore that the present invention is specifically designed to casting is greater than 2 meters, one-shot forming, ensure that the stability of product, and circularity is good, and surperficial flawless substantially increases the sealing of valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of mold base.
Wherein, 1-mold base, 2-inner core, the outer core of 3-, 4-axle thick stick, 5-lagging casing, 6-capping, 7-inner core core box, the outer core core box of 8-, 9-annular lug, 10-chill.
Detailed description of the invention
The preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows the specific embodiment of the present invention: a kind of novel butterfly valve casting device, comprise mold base 1, inner core 2, outer core 3, lagging casing 5 and capping 6 form, mold base 1 upper end is provided with annular lug 9, inner core 2 and outer core 3 are arranged on the both sides of annular lug 9, axle thick stick 4 is provided with at the center of mold base 1, annular lug 9, inner core 2, the central axes of outer core 3 and axle thick stick 4, the height of axle thick stick 4 is greater than the height of inner core 2, the outer surface of core 2 is provided with lagging casing 5 outside, the upper end of inner core 2 and outer core 3 is provided with capping 6, capping 6 is provided with sprue gate and rising head above.
The height of inner core 2 and described 3 outer cores is equal; Inner core 2 is loop configuration, and forms in fan-shaped inner core core box 7 by least two; Outer core 3 is loop configuration, and forms in fan-shaped outer core core box 8 by least two; The upper surface of annular lug 9 is evenly inlaid with chill 10.
The butterfly valve body that the bore that the present invention is specifically designed to casting is greater than 2 meters, one-shot forming, ensure that the stability of product, and circularity is good, and surperficial flawless substantially increases the sealing of valve.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. a novel butterfly valve casting device, comprise mold base, inner core, outer core, lagging casing and capping composition, it is characterized in that, described mold base upper end is provided with annular lug, described inner core and described outer core are arranged on the both sides of annular lug, axle thick stick is provided with at the center of described mold base, described annular lug, inner core, the central axes of outer core and axle thick stick, the height of described axle thick stick is greater than the height of inner core, the outer surface of described outer core is provided with lagging casing, the upper end of described inner core and described outer core is provided with capping, sprue gate and rising head is provided with above described capping.
2. the novel butterfly valve casting device of one according to claim 1, is characterized in that, the height of described inner core and described outer core is equal.
3. the novel butterfly valve casting device of one according to claim 1, is characterized in that, described inner core is loop configuration, and forms in fan-shaped inner core core box by least two.
4. the novel butterfly valve casting device of one according to claim 1, is characterized in that, described outer core is loop configuration, and forms in fan-shaped outer core core box by least two.
5. the novel butterfly valve casting device of one according to claim 1, it is characterized in that, the upper surface of described annular lug is evenly inlaid with chill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692660.5A CN105195685A (en) | 2015-10-23 | 2015-10-23 | Novel butterfly valve casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510692660.5A CN105195685A (en) | 2015-10-23 | 2015-10-23 | Novel butterfly valve casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105195685A true CN105195685A (en) | 2015-12-30 |
Family
ID=54943827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510692660.5A Pending CN105195685A (en) | 2015-10-23 | 2015-10-23 | Novel butterfly valve casting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105195685A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598632A (en) * | 1979-12-20 | 1980-07-26 | Nissan Motor Co Ltd | Preparation of cylinder head of internal combustion engine |
| CN102248129A (en) * | 2011-06-17 | 2011-11-23 | 河南豫兴铸造有限公司 | Method for controlling roundness of valve body during casting of butterfly valve body |
| CN202079254U (en) * | 2011-06-10 | 2011-12-21 | 河南豫兴铸造有限公司 | Device for casting butterfly valve body |
| CN202162342U (en) * | 2011-06-10 | 2012-03-14 | 河南豫兴铸造有限公司 | Outer mold core for casting butterfly valve bodies |
| CN203170917U (en) * | 2013-02-21 | 2013-09-04 | 芜湖市金贸流体科技股份有限公司 | Combined gate valve body casting mould |
-
2015
- 2015-10-23 CN CN201510692660.5A patent/CN105195685A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5598632A (en) * | 1979-12-20 | 1980-07-26 | Nissan Motor Co Ltd | Preparation of cylinder head of internal combustion engine |
| CN202079254U (en) * | 2011-06-10 | 2011-12-21 | 河南豫兴铸造有限公司 | Device for casting butterfly valve body |
| CN202162342U (en) * | 2011-06-10 | 2012-03-14 | 河南豫兴铸造有限公司 | Outer mold core for casting butterfly valve bodies |
| CN102248129A (en) * | 2011-06-17 | 2011-11-23 | 河南豫兴铸造有限公司 | Method for controlling roundness of valve body during casting of butterfly valve body |
| CN203170917U (en) * | 2013-02-21 | 2013-09-04 | 芜湖市金贸流体科技股份有限公司 | Combined gate valve body casting mould |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
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| WD01 | Invention patent application deemed withdrawn after publication |