CN203426403U - Circular pressure supplementing type cartridge valve - Google Patents
Circular pressure supplementing type cartridge valve Download PDFInfo
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- CN203426403U CN203426403U CN201320524722.8U CN201320524722U CN203426403U CN 203426403 U CN203426403 U CN 203426403U CN 201320524722 U CN201320524722 U CN 201320524722U CN 203426403 U CN203426403 U CN 203426403U
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- valve
- spool
- push rod
- piston
- hole
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Abstract
A circular pressure supplementing type cartridge valve comprises a valve deck connected with the end of a valve body, a sliding ejector rod and a valve element are arranged in the valve body, the ejector rod is connected with the valve element, the valve deck is connected with a cover plate, an oil cylinder is formed jointly by the valve deck and the cover plate in an enclosing mode, a piston is arranged in the oil cylinder, one end of the ejector rod stretches into the oil cylinder to be connected with the piston, the middle of the ejector rod penetrates through the valve element, a first through hole is formed in the other end of the valve body, and the other end of the ejector rod is connected with a sealing mechanism used for sealing the first through hole. The other end of the ejector rod is provided with a first conical surface used for sealing, the first through hole is correspondingly provided with a second conical surface used for sealing, and the first conical surface is connected to the second conical surface in a pressing mode. One end of the ejector rod is connected with the piston through threads. The piston divides the oil cylinder into two cavities, namely the first piston cavity and the second piston cavity, the cover plate is provided with a third hole channel communicated with the first piston cavity. The circular pressure supplementing type cartridge valve has the advantages of being simple and reasonable in structure, flexible to operate, small in size, low in manufacturing cost, capable of supplementing pressure slightly and wide in application range.
Description
Technical field
The utility model relates to a kind of inserted valve, particularly a kind of circulation ftercompction type inserted valve.
Background technology
When the accumulator of die casting machine carries out energy storage, due to the pressure loss of valve, will cause the oil pressure of accumulator a little less than system pressure.Yet the mould that ask for something is higher needs pressure accurately.Tradition die casting machine, when carrying out energy storage, as shown in Figure 1, often can improve system pressure and carry out energy storage.Way is easier although it is so, but does not generally advocate, and its reason is, when relating to control program and debugging, may occur having influence on because of adjustment System pressure the pressure of other branch's oil circuits.
Chinese patent literature CN201061823Y discloses a kind of injection oil circuit device of hot chamber machine on May 21st, 2008, it comprises by injection oil cylinder, establishes the injection assembly that shot piston in the inner and injection rod form, the slow shot oil supply system being formed by slow shot magnetic valve and oil circuit thereof, fast shot oil supply system is comprised of fast shot accumulator, check valve, fast shot inlet valve and fast shot delivery valve and the oil circuit that is connected above-mentioned each parts; Hydraulic pressure back haul system is comprised of backhaul inlet valve and backhaul delivery valve and oil circuit thereof; The control device of fast shot oil-feed, delivery valve and backhaul oil-feed, delivery valve is comprised of the magnetic valve and the connecting circuit thereof that are connected fast shot oil-feed, delivery valve and backhaul oil-feed, delivery valve respectively.The input of fast shot inlet valve is connected with the output of fast shot accumulator and check valve, and output is connected with the rodless cavity of injection oil cylinder.The input of fast shot delivery valve is connected with the rod chamber of injection oil cylinder, and output is connected with fuel tank.The input parallel connection of the input of backhaul inlet valve and check valve is connected with oily delivery side of pump, and backhaul inlet valve output is connected with the rod chamber of injection oil cylinder.The input of backhaul delivery valve is connected with the rodless cavity of injection oil cylinder, and output is connected with fuel tank.This injection oil circuit device complex structure, cost of manufacture is high, and effect is not ideal enough.
Utility model content
The purpose of this utility model aims to provide a kind of simple and reasonable, flexible operation, volume is little, cost of manufacture is low, can carry out a small amount of ftercompction, circulation ftercompction type inserted valve applied widely, to overcome weak point of the prior art.
By a kind of circulation ftercompction type inserted valve of this object design, comprise the valve gap that the one end with valve body joins, the push rod and the spool that in valve body, are provided with slip, push rod and spool join, and its architectural feature is that valve gap and cover plate join, valve gap and cover plate surround oil cylinder jointly, piston is arranged in oil cylinder, and one end of push rod is stretched in oil cylinder and joined with piston, and the middle part of push rod is through spool, the other end of valve body is provided with the first through hole, the other end of push rod with for sealing the closing means of this first through hole, join.
Further, described closing means comprises the cushion cover being arranged in valve body, and the first through hole is arranged on cushion cover, and the other end of push rod is crimped on the first through hole.
Further, the other end of described push rod is provided with first conical surface for sealing, and on the first through hole, correspondence is provided with second conical surface for sealing, and first conical surface is crimped on second conical surface.
Further, one end of described push rod is connected with piston thread.
Further, described piston is separated into two chambeies oil cylinder: first piston chamber and the second plunger shaft, on cover plate, be provided with the 3rd duct communicating with first piston chamber, and on valve gap, be provided with the 4th duct communicating with the second plunger shaft.
Further, described spool is three chambeies the interior separation of valve body: spool chamber, discharge chamber and connected chamber,
Wherein, spool chamber is surrounded jointly by top, valve body, valve gap and the push rod of spool, is provided with the second duct that is communicated with spool chamber on valve gap,
Discharge chamber is surrounded jointly by middle part and the valve body of spool, is provided with the first duct communicating with discharge chamber on the sidewall of valve body,
Connected chamber is surrounded jointly by bottom and the valve body of spool, is provided with the second through hole communicating with connected chamber on the sidewall of valve body, and the first through hole communicates with connected chamber.
Further, the cross section of described spool is T-shaped.
Further, described push rod slide through spool, push rod is tightly connected with spool formation.
The utility model adopts after above-mentioned technical scheme, and when accumulator is carried out to energy storage, the periodic duty by circulation ftercompction type inserted valve just can make up a small amount of pressure losing because of valve and pipeline; Can be used as small-sized pressurizer uses.
The utility model is integrated one-way mechanism and booster body, not only goes for die casting machine, and is applicable to injection machine and other have in the middle of the machine of similar requirement, has the wider scope of application.
The utlity model has simple and reasonable, flexible operation, volume is little, cost of manufacture is low, can carry out a small amount of ftercompction, feature applied widely.
Accompanying drawing explanation
Fig. 1 is the accumulator energy storage oil circuit schematic diagram of traditional die casting machine.
Fig. 2 is the accumulator energy storage oil circuit schematic diagram in the utility model one embodiment.
Fig. 3 is that biopsy cavity marker devices schematic diagram is amplified at the I place in Fig. 2.
In figure: 1 is piston, 2 is the second plunger shaft, and 3 is the second duct, and 4 is the first duct, 5 is cushion cover, and 6 is push rod, and 7 is discharge chamber, and 8 is spool, 9 is valve body, and 10 is spool chamber, and 11 is the 4th duct, and 12 is valve gap, 13 is cover plate, and 14 is first piston chamber, and 15 is the 3rd duct, and 16 is connected chamber, V3 is the second pilot solenoid valve, and V2 is the first pilot solenoid valve, and V4 is check valve, A is the first through hole, and B is the second through hole, and V1 is circulation ftercompction type inserted valve.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 2-Fig. 3, this circulation ftercompction type inserted valve, comprise the valve gap 12 that the one end with valve body 9 joins, in valve body 9, be provided with push rod 6 and the spool 8 of slip, push rod 6 joins with spool 8, valve gap 12 joins with cover plate 13, valve gap 12 surrounds oil cylinder jointly with cover plate 13, piston 1 is arranged in oil cylinder, one end of push rod 6 is stretched in oil cylinder and is joined with piston 1, the middle part of push rod 6 is through spool 8, and the other end of valve body 9 is provided with the first through hole A, the other end of push rod 6 with for sealing the closing means of this first through hole A, join.
In the present embodiment, closing means comprises that cushion cover 5, the first through hole A that are arranged in valve body 9 are arranged on cushion cover 5, and the other end of push rod 6 is crimped on the first through hole A.The other end of push rod 6 is provided with first conical surface for sealing, and the upper correspondence of the first through hole A is provided with second conical surface for sealing, and first conical surface is crimped on second conical surface.Now, the first through hole A and connected chamber 16 are cut off.
For the ease of installing, one end of push rod 6 is threaded with piston 1.
Piston 1 can slide in the oil cylinder of valve gap and cover plate formation.Piston 1 is separated into two chambeies oil cylinder: first piston chamber 14 and the second plunger shaft 2, on cover plate 13, be provided with the 3rd duct 15 communicating with first piston chamber 14, and on valve gap 12, be provided with the 4th duct 11 communicating with the second plunger shaft 2.
Wherein, spool chamber 10 is surrounded with push rod 6 jointly by top, valve body 9, the valve gap 12 of spool 8, is provided with the second duct 3 that is communicated with spool chamber 10 on valve gap 12,
Discharge chamber 7 is surrounded jointly by middle part and the valve body 9 of spool 8, is provided with the first duct 4 communicating with discharge chamber 7 on the sidewall of valve body 9,
Connected chamber 16 is surrounded jointly by bottom and the valve body 9 of spool 8, is provided with the second through hole B communicating with connected chamber 16 on the sidewall of valve body 9, and the first through hole A communicates with connected chamber 16.
The first duct, the second duct, the 3rd duct and magnetic valve valve opening communicate.The 4th duct is steam vent.
The cross section of spool 8 is T-shaped.In the middle of the spool of T shape, through push rod, the large small end of spool can be respectively slides at the large aperture internal sealed of valve body.
The external cylindrical surface of push rod is smooth, the middle part of push rod sealed through spool.
Push rod 6 slide through spool 8, push rod 6 forms and is tightly connected with spool 8.
During work, see Fig. 2-Fig. 3, first give accumulator energy storage, the first pilot solenoid valve V2 obtains electric, and a hydraulic oil part enters into the second plunger shaft by the first pilot solenoid valve V2, and first piston chamber is communicated with fuel tank.The slip of turning left of piston driving push rod.The first through hole A and the second through hole B are realized and being communicated by connected chamber 16, and hydraulic oil, from the first through hole A to the second through hole B, then passes through the check valve V4 as one-way mechanism, finally enters into the oil pocket of accumulator.After certain hour, accumulator reaches and approaches system pressure, but also almost, now energy storage can not be proceeded.
In the case, need to carry out supercharging by booster body, be specially: by the first pilot solenoid valve V2 dead electricity, hydraulic oil enters into first piston chamber, the second plunger shaft is communicated with fuel tank.Because the sectional area of the sectional area ratio push rod of piston wants large, the slip so piston driving push rod is turned right.The second conical surface laminating of first conical surface of push rod and cushion cover, has been cut off between the first through hole A and the second through hole B, between the first through hole A and the second through hole B, is not communicated with mutually.Next, the second pilot solenoid valve V3 obtains electric, and hydraulic oil enters spool chamber by the second pilot solenoid valve V3, the spool slip of turning right immediately.Because the cross section of spool 8 is T-shaped, the small end of spool is long-pending less than large end face, according to equilibrium principle, so just in the second through hole B and this pipeline of check valve V4, has formed supercharging.The pressure ratio accumulator of the second through hole B is high, and part hydraulic oil enters into accumulator, is accumulator ftercompction.So circulation, reaches after setting pressure when pressure sensor detects, and machine just stops energy storage.
Claims (8)
1. a circulation ftercompction type inserted valve, comprise the valve gap (12) that the one end with valve body (9) joins, in valve body (9), be provided with push rod (6) and the spool (8) of slip, push rod (6) joins with spool (8), it is characterized in that valve gap (12) and cover plate (13) join, valve gap (12) surrounds oil cylinder jointly with cover plate (13), piston (1) is arranged in oil cylinder, one end of push rod (6) is stretched in oil cylinder and is joined with piston (1), the middle part of push rod (6) is through spool (8), the other end of valve body (9) is provided with the first through hole (A), the other end of push rod (6) with for sealing the closing means of this first through hole (A), join.
2. circulation ftercompction type inserted valve according to claim 1, it is characterized in that described closing means comprises the cushion cover (5) being arranged in valve body (9), it is upper that the first through hole (A) is arranged on cushion cover (5), and the other end of push rod (6) is crimped on the first through hole (A).
3. circulation ftercompction type inserted valve according to claim 2, the other end that it is characterized in that described push rod (6) is provided with first conical surface for sealing, the upper correspondence of the first through hole (A) is provided with second conical surface for sealing, and first conical surface is crimped on second conical surface.
4. circulation ftercompction type inserted valve according to claim 1, is characterized in that one end of described push rod (6) is threaded with piston (1).
5. circulation ftercompction type inserted valve according to claim 1, it is characterized in that described piston (1) is separated into two chambeies oil cylinder: first piston chamber (14) and the second plunger shaft (2), on cover plate (13), be provided with the 3rd duct (15) communicating with first piston chamber (14), on valve gap (12), be provided with the 4th duct (11) communicating with the second plunger shaft (2).
6. according to the arbitrary described circulation ftercompction type inserted valve of claim 1 to 5, it is characterized in that described spool (8) is three chambeies the interior separation of valve body (9): spool chamber (10), discharge chamber (7) and connected chamber (16),
Wherein, spool chamber (10) is surrounded with push rod (6) jointly by top, valve body (9), the valve gap (12) of spool (8), is provided with the second duct (3) that is communicated with spool chamber (10) on valve gap (12),
Discharge chamber (7) is surrounded jointly by middle part and the valve body (9) of spool (8), is provided with the first duct (4) communicating with discharge chamber (7) on the sidewall of valve body (9),
Connected chamber (16) is surrounded jointly by bottom and the valve body (9) of spool (8), is provided with the second through hole (B) communicating with connected chamber (16) on the sidewall of valve body (9), and the first through hole (A) communicates with connected chamber (16).
7. circulation ftercompction type inserted valve according to claim 6, is characterized in that the cross section of described spool (8) is T-shaped.
8. circulation ftercompction type inserted valve according to claim 7, it is characterized in that described push rod (6) slides through spool (8), push rod (6) forms and is tightly connected with spool (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524722.8U CN203426403U (en) | 2013-08-26 | 2013-08-26 | Circular pressure supplementing type cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524722.8U CN203426403U (en) | 2013-08-26 | 2013-08-26 | Circular pressure supplementing type cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203426403U true CN203426403U (en) | 2014-02-12 |
Family
ID=50055465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320524722.8U Withdrawn - After Issue CN203426403U (en) | 2013-08-26 | 2013-08-26 | Circular pressure supplementing type cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203426403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433455A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Circulating pressure supplement type cartridge valve |
-
2013
- 2013-08-26 CN CN201320524722.8U patent/CN203426403U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433455A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Circulating pressure supplement type cartridge valve |
| CN103433455B (en) * | 2013-08-26 | 2015-08-05 | 广东伊之密精密机械股份有限公司 | Circulation pressure supplement type cartridge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140212 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |