CN104325093A - Hot air manual valve for core shooter - Google Patents
Hot air manual valve for core shooter Download PDFInfo
- Publication number
- CN104325093A CN104325093A CN201410625695.2A CN201410625695A CN104325093A CN 104325093 A CN104325093 A CN 104325093A CN 201410625695 A CN201410625695 A CN 201410625695A CN 104325093 A CN104325093 A CN 104325093A
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve body
- valve
- station
- core shooter
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The application of the invention discloses a hot air manual valve for a core shooter. The hot air manual valve is used to accurately control on/off of hot air and comprises a valve body and a valve rod which penetrates through the middle of the valve body, wherein a hollow cavity is formed in the valve body; the valve rod can axially slide; when the valve rod is in a closed station, a convex edge at the middle of the valve rod can be overlapped with the inner wall of the hollow cavity to partition the hollow cavity into an upper chamber and a lower chamber; an air inlet and an air outlet are formed in the upper chamber and the lower chamber, respectively; when the valve rod is in an open station after slipping, the upper chamber and the lower chamber are intermittently communicated with the inner wall of the hollow cavity through the convex edge; a spring for driving the valve rod in the open station is arranged between the valve rod and the valve body; the head of the valve rod extends out of the valve body; a cam capable of rotationally pushing the valve rod to be in the closed station is arranged on the valve body; and an electric heating wire is arranged in the lower chamber.
Description
Technical field
The present invention relates to the parts of core shooter.
Background technology
In recent years newly developed go out inorganic binder be applied in gradually in molding sand, achieve better core quality, comprise good instant and normal temperature strength, good whose surfaces quality and good resistance to water soak, we know that the coremaking process need of organic sand carries out in hot environment, the requirement of inorganic sand then differs widely, it requires that whole application project process must be carried out in euthermic environment, inorganic sand only could keep the mobility needed in such temperature environment, if temperature is too high, due to the reason of material behavior, inorganic sand then can solidify, this point is also one of main distinction of inorganic sand core manufacturing craft and organic sand core manufacturing craft.
Typical core shooter by fuselage, penetrate sand hold down gag, sand storage bin, blasting unit, penetrate bucket, penetrate the structure such as plate, nozzle and form.Sand storage bin is positioned at the top of whole equipment, for storing core sand and adding sand to penetrating cylinder.The lower end of blasting unit penetrates bucket diversion section, under be equipped with and penetrate plate, the below penetrating plate is provided with nozzle, penetrate plate when penetrating sand and mould close contact, nozzle is stretched into mould inside simultaneously, molding sand penetrates to penetrating bucket from blasting unit, enters mould again through the core penetrating bucket by the molding sand runner penetrating plate and nozzle.
Molding sand needs to blow hot-air when solidifying, and existing core shooter does not arrange and blows hot air system, and the break-make how accurately controlling hot-air is the problem of To be improved in the art.
Summary of the invention
The invention is intended to provide a kind of core shooter hot-air manually-operated gate, accurately to control the break-make of hot-air.
Core shooter hot-air manually-operated gate in this programme, comprise valve body and run through the valve rod in the middle part of it, cavity is provided with in valve body, valve rod can slide axially, when valve rod is positioned at closed station, convex edge in the middle part of valve rod can overlap to be cut off by cavity for upper and lower two chambers with cavity inner wall, air inlet and gas outlet are located at upper and lower chamber respectively, when being positioned at unlatching station after valve rod slippage, upper and lower chamber is by the intermittent connectivity between convex edge and cavity inner wall, be provided with between valve rod and valve body and order about the spring that valve rod is in unlatching station, the head end of valve rod stretches out valve body, valve body is provided with the cam of rotatable promotion valve rod to closed station, heating wire is provided with in lower chambers.
Under normal conditions, spring promotes valve rod and remains on unlatching station, convex edge now in the middle part of valve rod and cavity inner wall from, the gas that air inlet enters is discharged from gas outlet from upper chamber through lower chambers, and is also improved temperature by built-in heating wire through the gas of lower chambers.When needing valve-off, driving cam rotates, and make the convex edge of cam promote stem shaft to moving to closed station, the convex edge now in the middle part of valve rod and cavity inner wall overlap, and are cut off by upper and lower cavity, achieve the closedown of gas channel, accurately control the break-make of hot-air.
Further, valve body is provided with valve rod and is positioned at the travel switch triggered when opening station, and travel switch connects with the operating circuit of heating wire.Only have when valve opening, travel switch just controls heating wire work, and when valve closing, heating wire quits work, and can save a large amount of energy.
Further, the head end of valve rod is provided with disk spring.Disk spring can produce certain distortion when cam excessively pushes valve rod, ensures that the stroke of valve rod is in normal range (NR).
Further, convex edge and cavity inner wall are equipped with the corresponding conical surface.With improve its in conjunction with time sealing.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the embodiment of the present invention.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: valve body 1, valve rod 2, convex edge 21, disk spring 22, collision block 23, dividing plate 3, the conical surface 31, bearing 4, cam 5, handle 51, extension spring 6, heated wall 7, bulge loop 8, travel switch 9.
Embodiment is substantially as shown in Figure 1: valve body 1 shell is cylindrical, and valve rod 2 vertical sliding motion is connected in spindle of valve body position.The middle part of valve rod is provided with the convex edge 21 of annular, and the inwall of valve body internal cavity is provided with corresponding dividing plate 3, and the joint portion of convex edge and dividing plate is the conical surface 31 of Corresponding matching.After convex edge and dividing plate combine, the cavity in valve body is divided into two chambers up and down of partition, air inlet and gas outlet are located at upper and lower chamber respectively.
Turned round the cam 5 of connection one ellipse above valve body by bearing 4, cam is connected with handle 51, the dead cam of handle can be pulled and rotate.The head of valve rod upper end is connected with collision block 23 by disk spring 22, the upper surface of collision block is the groove mated with cam-shaped face, valve rod can be pushed when cam rotates protuberance contact collision block and be displaced downwardly to closed station, when under normality, cam does not push valve rod, valve rod is pulled by extension spring 6 and moves to unlatching station.
Be fixed with the heated wall 7 of tubular in lower chambers in valve body, the gas come from upper chamber needs to be moved down by the inner side of heated wall, then walk around under heated wall along and move up from the outside of heated wall, finally discharge from gas outlet.Be provided with heating wire in heated wall, valve rod lower end is provided with bulge loop 8, and valve body is provided with the travel switch 9 can touching bulge loop when opening station, and travel switch accesses the operating circuit of heating wire and connects when opening station.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. core shooter hot-air manually-operated gate, comprise valve body and run through the valve rod in the middle part of it, it is characterized in that, cavity is provided with in valve body, valve rod can slide axially, when valve rod is positioned at closed station, convex edge in the middle part of valve rod can overlap to be cut off by cavity for upper and lower two chambers with cavity inner wall, air inlet and gas outlet are located at upper and lower chamber respectively, when being positioned at unlatching station after valve rod slippage, upper and lower chamber is by the intermittent connectivity between convex edge and cavity inner wall, be provided with between valve rod and valve body and order about the spring that valve rod is in unlatching station, the head end of valve rod stretches out valve body, valve body is provided with the cam of rotatable promotion valve rod to closed station, heating wire is provided with in lower chambers.
2. core shooter hot-air manually-operated gate according to claim 1, is characterized in that: valve body is provided with valve rod and is positioned at the travel switch triggered when opening station, and travel switch connects with the operating circuit of heating wire.
3. core shooter hot-air manually-operated gate according to claim 2, is characterized in that: the head end of valve rod is provided with disk spring.
4. core shooter hot-air manually-operated gate according to claim 3, is characterized in that: convex edge and cavity inner wall are equipped with the corresponding conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625695.2A CN104325093A (en) | 2014-11-10 | 2014-11-10 | Hot air manual valve for core shooter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410625695.2A CN104325093A (en) | 2014-11-10 | 2014-11-10 | Hot air manual valve for core shooter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325093A true CN104325093A (en) | 2015-02-04 |
Family
ID=52399964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410625695.2A Pending CN104325093A (en) | 2014-11-10 | 2014-11-10 | Hot air manual valve for core shooter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339116A (en) * | 2017-08-14 | 2017-11-10 | 兖矿东华重工有限公司 | The quick setting prop hydraulic system and hand-operated direction valve of a kind of coal mine hydraulic supporting |
-
2014
- 2014-11-10 CN CN201410625695.2A patent/CN104325093A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339116A (en) * | 2017-08-14 | 2017-11-10 | 兖矿东华重工有限公司 | The quick setting prop hydraulic system and hand-operated direction valve of a kind of coal mine hydraulic supporting |
| CN107339116B (en) * | 2017-08-14 | 2023-08-01 | 兖矿东华重工有限公司 | Quick lifting column hydraulic system of coal mine hydraulic support and manual reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |
|
| WD01 | Invention patent application deemed withdrawn after publication |