CN104190879A - Check valve sand supply device of sand ejector - Google Patents
Check valve sand supply device of sand ejector Download PDFInfo
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- CN104190879A CN104190879A CN201410452699.5A CN201410452699A CN104190879A CN 104190879 A CN104190879 A CN 104190879A CN 201410452699 A CN201410452699 A CN 201410452699A CN 104190879 A CN104190879 A CN 104190879A
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- sand
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- check valve
- supply device
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Abstract
The invention relates to a check valve sand supply device of a sand ejector. The check valve sand supply device comprises a sand hopper, a valve body, an upper valve seat, a lower valve seat, a box body, an iron box, a pneumatic switch, a first conveying air pipe and a second conveying air pipe, wherein a hollow valve cavity is formed in the valve body, a limiting plate is arranged in the valve cavity, the limiting plate is provided with a circular ball valve, the upper valve seat and the lower valve seat are respectively provided with a sand flow hole, the sand hopper is fixed on the upper valve seat, the bottom of the sand hopper is provided with a sand inlet, the box body is fixed below the lower valve seat, a sand ejection passage is formed in the box body, the first conveying air pipe is connected and communicated with the sand ejection passage, the second conveying air pipe is connected and communicated with the bottom of the valve cavity, and the iron box is arranged below the box body. According to the check valve sand supply device, the circular ball valve is controlled by a pneumatic device to be switched on or off, the accurate reciprocating work state of a valve core is guaranteed, the valve core is relatively reliable to reset, the malfunction rate of the check valve is greatly reduced, the reliability of the check valve is improved, the sand leakage defect of a traditional plugboard sand supply device can be solved, and the operating environment can be greatly improved.
Description
Technical field
The present invention relates to one and penetrate sand machine for sand device, relate in particular to a kind of check valve of penetrating sand machine for sand device.
Background technology
At present, in Sand-Faced Metal Mould Casting technique, adopt penetrate in sand machine for most of pneumatic board plug type confession sand device in sand device, as shown in Figure 1, in the process of plug, not only there is serious leakage sand, run sand phenomenon in the plate 18 of this device, cause a large amount of waste of precoated sand, and owing to leaking the existence of sand, race sand phenomenon, cause workman in sand hopper, to increase sand amount timely, increase workman's labour intensity, reduced production line operational efficiency.
For this reason, for the problems referred to above, penetrate sand machine and also made improvement for sand technology, in the prior art at present, penetrate in sand machine and also exist and adopt check valve to supply sand, but the structure of check valve is the straight check valve that spool (as spherical valve core) upper support has back-moving spring mostly.The check valve of this traditional structure.Although have simple in structurely, the advantage that volume is little, in use exists that some are significantly not enough: on the one hand, because the frequency of spring work is higher, spring is very easily tired and damage; On the other hand, because valve pocket space is little, spring size is limited, not only makes spool be difficult to obtain reliable and stable reseting elasticity, and easily form and reveal, and also very inconvenience of the replacing of spring.
Summary of the invention
The object of the invention is to, for above-mentioned defect, provide a kind of structure compacter, use more reliable, the check valve of the sand machine of penetrating of failure rate is low is for sand device, the circular ball valve of the check valve of this device is controlled by pneumatic means, has not only solved traditional leakage sand, has run sand phenomenon, and solved spring fatiguability and cause damaging and changing inconvenient defect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of check valve of penetrating sand machine is for sand device, comprise sand hopper, add sand check valve, casing, pneumatic means and iron case, described pneumatic means comprises jettron, first carries tracheae and second to carry tracheae, described add sand check valve comprise valve body and with its valve body on, the upper valve base that lower two ends connect respectively, lower valve base, in described valve body, be provided with hollow valve pocket, in this valve pocket, be provided with limiting plate, on described limiting plate, be provided with circular ball valve, wherein, described upper valve base, on lower valve base, be respectively arranged with quicksand hole, what described sand hopper was fixed on described upper valve base is provided with sand inlet above and in its sand hopper bottom, described casing be fixed on below described lower valve base and in its casing, be provided with hollow penetrate sand passage, described pneumatic means is arranged on casing simultaneously, first of this pneumatic means carry tracheae with described in penetrate sand passage and be connected and communicate, second carries tracheae be connected and communicate with described valve pocket bottom, the below of described casing is provided with iron case.
The present invention compared with prior art, has following beneficial effect:
Adopt after said structure, this check valve of penetrating sand machine supplies sand device by the unlatching of the circular ball valve of pneumatic means control or closes, ensure spool working in reciprocating mode state accurately, make valve core reset more reliable, guarantee to demonstrate,prove the normal work of check valve, make like this check valve not only have simple in structure, the advantage that volume is little, and fundamentally avoid adopting that spring brings such as spring fatigue, the inefficacy of corroding and cause, more avoid gravity block structure easily to occur motion skew and leaked sand, run the deficiencies such as sand, greatly reduce the fault rate of check valve, improve the functional reliability of check valve, owing to adopting spherical shape spool, it is simple in structure again, resets accurately, and sealing is reliable.This check valve has advantages of that circulating resistance is little, valve core reset fast response time, has further ensured check valve functional reliability.
Brief description of the drawings
Fig. 1 is the structural representation for sand device in prior art of the present invention;
Fig. 2 is that the check valve of sand machine of penetrating of the present invention is for the structural representation of sand device;
Fig. 3 be the present invention penetrate sand machine check valve for the related cutaway view that adds sand check valve in sand device.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail:
As Fig. 2, shown in 3, a kind of check valve of penetrating sand machine is for sand device, comprise sand hopper 1, add sand check valve 2, casing 3, pneumatic means 4 and iron case 5, described pneumatic means 4 comprises jettron 6, first carries tracheae 7 and second to carry tracheae 17, described add sand check valve 2 comprise valve body 8 and with its valve body 8 on, the upper valve base 9 that lower two ends connect respectively, lower valve base 10, in described valve body 8, be provided with hollow valve pocket 11, in this valve pocket 11, be provided with limiting plate 12, on described limiting plate 12, be provided with movable circular ball valve 13, wherein, at described upper valve base 9, on the centre of lower valve base 10, be respectively arranged with quicksand hole 14, the sphere diameter of circular ball valve 13 is greater than upper valve base 9, the aperture in the quicksand hole 14 on lower valve base 10, described sand hopper 1 be fixed on described upper valve base 9 above and be provided with sand inlet 15 in the centre of its sand hopper 1 bottom, this sand inlet 15 is connected with the quicksand hole 14 on upper valve base 9, described casing 3 be fixed on below described lower valve base 10 and in its casing 3, be provided with hollow penetrate sand passage 16, this is penetrated sand passage 16 and is connected with the quicksand hole 14 on lower valve base 10, described pneumatic means 4 is arranged on casing 3 simultaneously, first of this pneumatic means 4 carry tracheae 7 with described in penetrate sand passage 16 and be connected and communicate, second carries tracheae 17 be connected and communicate with the bottom of described valve pocket 11, the below of described casing 3 is provided with iron case 5.
In the time penetrating sand machine and need to inject Iron Mould Coated Sand to 5 li, iron case, open the jettron 6 in pneumatic means 4, second carries tracheae 17 to support the gas offloading of circular ball valve, circular ball valve 13 falls under the effect of self gravitation and sand, depart from the quicksand hole 14 on upper valve base 9, Iron Mould Coated Sand in sand hopper 1 is along sand inlet 15, quicksand hole 14 and penetrate sand passage 16, under the Pneumatic pressure effect of the first conveying tracheae 7, Iron Mould Coated Sand is pressed in iron case 5; When covering sand, iron case fills after iron case 5, close the jettron 6 in pneumatic means 4, second carries tracheae 17 that the gas that supports circular ball valve is pressed into the port closed quicksand passage that in valve pocket, circular ball valve 13 is withstood on to the quicksand hole 14 on upper valve base 9, meanwhile, first carry tracheae 7 that remaining inside gas is unloaded.
The check valve of penetrating sand machine of the present invention supplies sand device by the unlatching of the circular ball valve of pneumatic means control or closes, ensure spool working in reciprocating mode state accurately, make valve core reset more reliable, guarantee to demonstrate,prove the normal work of check valve, and fundamentally avoid adopting the inefficacy that causes such as spring fatigue that spring brings and leaked sand, run the deficiencies such as sand, greatly reduce the fault rate of check valve, improved the functional reliability of check valve; The present invention simultaneously adopts spherical shape spool, and it is simple in structure, resets accurately, and sealing is reliable.
This check valve has advantages of that circulating resistance is little, valve core reset fast response time, has further ensured check valve functional reliability.
Claims (1)
1. a check valve of penetrating sand machine is for sand device, comprise sand hopper, add sand check valve, casing, pneumatic means and iron case, described pneumatic means comprises jettron, first carries tracheae and second to carry tracheae, it is characterized in that, described add sand check valve comprise valve body and with its valve body on, the upper valve base that lower two ends connect respectively, lower valve base, in described valve body, be provided with hollow valve pocket, in this valve pocket, be provided with limiting plate, on described limiting plate, be provided with circular ball valve, wherein, described upper valve base, on lower valve base, be respectively arranged with quicksand hole, what described sand hopper was fixed on described upper valve base is provided with sand inlet above and in its sand hopper bottom, described casing be fixed on below described lower valve base and in its casing, be provided with hollow penetrate sand passage, described pneumatic means is arranged on casing simultaneously, first of this pneumatic means carry tracheae with described in penetrate sand passage and be connected and communicate, second carries tracheae be connected and communicate with described valve pocket bottom, the below of described casing is provided with iron case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452699.5A CN104190879A (en) | 2014-09-09 | 2014-09-09 | Check valve sand supply device of sand ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410452699.5A CN104190879A (en) | 2014-09-09 | 2014-09-09 | Check valve sand supply device of sand ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104190879A true CN104190879A (en) | 2014-12-10 |
Family
ID=52076326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452699.5A Pending CN104190879A (en) | 2014-09-09 | 2014-09-09 | Check valve sand supply device of sand ejector |
Country Status (1)
| Country | Link |
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| CN (1) | CN104190879A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2242177A1 (en) * | 1973-08-31 | 1975-03-28 | Figueras Michel | Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot |
| CN201179551Y (en) * | 2008-04-24 | 2009-01-14 | 浙江省机电设计研究院有限公司 | Sand adding mechanism of sand cover molding machine |
| CN202684692U (en) * | 2012-06-26 | 2013-01-23 | 东莞市兰光光学科技有限公司 | Load reduction lifting device separated from calibration disc of continuous polishing machine |
| CN203253882U (en) * | 2013-04-03 | 2013-10-30 | 苏州苏铸成套装备制造有限公司 | Core shooter of heated core box |
| EP2712690A1 (en) * | 2011-06-03 | 2014-04-02 | Sintokogio, Ltd. | Core sand filling device and core sand filling method in core making machine |
| CN203565803U (en) * | 2013-11-12 | 2014-04-30 | 无锡市康晖机械制造有限公司 | Sand adding device of core shooting machine |
| CN204122701U (en) * | 2014-09-09 | 2015-01-28 | 侯马市晋烽机械铸造有限公司 | A kind of check valve penetrating sand machine supplies sand device |
-
2014
- 2014-09-09 CN CN201410452699.5A patent/CN104190879A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2242177A1 (en) * | 1973-08-31 | 1975-03-28 | Figueras Michel | Sand moulds and cores mfr using the cold-box process - with initial injection of air into shooter chamber before main shot |
| CN201179551Y (en) * | 2008-04-24 | 2009-01-14 | 浙江省机电设计研究院有限公司 | Sand adding mechanism of sand cover molding machine |
| EP2712690A1 (en) * | 2011-06-03 | 2014-04-02 | Sintokogio, Ltd. | Core sand filling device and core sand filling method in core making machine |
| CN202684692U (en) * | 2012-06-26 | 2013-01-23 | 东莞市兰光光学科技有限公司 | Load reduction lifting device separated from calibration disc of continuous polishing machine |
| CN203253882U (en) * | 2013-04-03 | 2013-10-30 | 苏州苏铸成套装备制造有限公司 | Core shooter of heated core box |
| CN203565803U (en) * | 2013-11-12 | 2014-04-30 | 无锡市康晖机械制造有限公司 | Sand adding device of core shooting machine |
| CN204122701U (en) * | 2014-09-09 | 2015-01-28 | 侯马市晋烽机械铸造有限公司 | A kind of check valve penetrating sand machine supplies sand device |
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Application publication date: 20141210 |