CN207629168U - A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine - Google Patents
A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine Download PDFInfo
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- CN207629168U CN207629168U CN201721131417.7U CN201721131417U CN207629168U CN 207629168 U CN207629168 U CN 207629168U CN 201721131417 U CN201721131417 U CN 201721131417U CN 207629168 U CN207629168 U CN 207629168U
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- inserted valve
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Abstract
The utility model discloses a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine, including the first electromagnetic direction valve, the first inserted valve, the second inserted valve and shut-off valve, the holes P, the holes A, the holes B of first electromagnetic direction valve correspond to the control hole C of connection accumulator, the control hole C of the first inserted valve, the second inserted valve respectively, the holes B of first inserted valve are connected to accumulator, the holes A of second inserted valve are connected to fuel tank, the holes A of first inserted valve be connected to the holes B of the second inserted valve and with the X of shut-off valve mouth intercommunications, described X mouthfuls for controlling opening and the closing of shut-off valve.The utility model is designed reasonably can realize the one-way flow of external control and the function of two-way stop, shorten the stability that decompression time improves fast shot cut-off.
Description
Technical field
The utility model is related to die casting equipment technical fields, more particularly to a kind of fast shot of magnesium alloy cold-chamber die casting machine
Disabling mechanism.
Background technology
The quick injection of magnesium alloy cold-chamber die casting machine injection part is using accumulator as the energy.Some domestic magnesium alloys are cold
Chamber die casting machine uses switch valve cooperation one-way valve structures.Fig. 1 tradition check valves use on magnesium alloy cold-chamber die casting machine
Hydraulic schematic diagram, the switch valve of wherein 1 fuel feeding of accumulator is made of inserted valve 2 and pilot control solenoid valve 5, due to fast ram compression
There is supercharging after penetrating, therefore check valve 3 usually is set between injection oil cylinder 4 and quickly accumulator 1.Therefore the performance of check valve 3 is straight
It connects and influences supercharging and build pressure time and stability.
Traditional one-way valve structures that the fast shot of magnesium alloy cold-chamber die casting machine uses as shown in Figure 2 include valve body 301, set
In in valve body spool 302 and the spring 303 that is connected with spool 302, when A mouthfuls of oil pressure are more than B mouthfuls, spool overcomes spring bullet
Being moved after power makes medium that can flow into B mouths 305 by A mouths 304；When 304 oil pressure of A mouths is less than B mouths 305, spool in spring restoring force and
Forward makes A mouths 304 end with B mouths 305 under pressure medium collective effect, and medium can not reach A mouths 304 from B mouths 305 at this time.This
Though class is simple in structure, since its " preventing reverse circulated " function is easy the shadow by A mouths 304 and 305 pressure change of B mouths
It rings, stability has to be strengthened.Magnesium alloy cold-chamber die casting machine is pressurized after quick injection, and check valve 3 makes B after supercharging
Mouth oil pressure can just be begun to shut off when being more than A mouthfuls, cannot at once be closed after quick injection, caused to generate during building pressure and be compared
Big pressure oscillation, also because the fluctuation of this hysteresis quality, which extends, builds the pressure time.For the check valve of big flow big orifice,
It is very difficult to improve response time closing.
In short, to require to build the pressure time short for magnesium alloy cold-chamber die casting machine, and in the case of requiring stability height, traditional is unidirectional
Valve is obviously difficult to meet the requirements.
Utility model content
To overcome above-mentioned deficiency in the prior art, the purpose of this utility model is that developing a kind of magnesium alloy cold chamber die casting
The fast shot disabling mechanism of machine can realize that the one-way flow of external control and the function of two-way stop, shortening are built the pressure time and improved
The stability of fast shot cut-off.
A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine, including the first electromagnetic direction valve, the first inserted valve,
Two inserted valves and shut-off valve, the holes P of first electromagnetic direction valve, the holes A, corresponding connection accumulator, the first inserting respectively of the holes B
The holes B of the control hole C of valve, the control hole C of the second inserted valve, first inserted valve are connected to accumulator, the holes A of the second inserted valve
Be connected to fuel tank, the holes A of the first inserted valve be connected to the holes B of the second inserted valve and with the X of shut-off valve mouth intercommunications, described X mouthfuls is used for
Control opening and the closing of shut-off valve.
Further, the shut-off valve includes spool, valve body, spring, cushion cover, valve deck, end cap, one end connecting pin of valve body
Lid, the other end connect valve deck, and the end cap has X mouthfuls, X mouthfuls of connection end cover lumens；The valve inner is equipped with body cavity, institute
It states body cavity and is internally provided with spool, the both ends of the spool are respectively the first piston portion with piston structure, second piston
Portion；Have in the middle part of the valve body inner conical surface correspondingly spool middle part with the male cone (strobilus masculinus) that can be tightly connected with it, the inner cone of valve body
Face both sides are equipped with adjacent A hydraulic fluid ports and B hydraulic fluid ports, and body cavity is divided by the male cone (strobilus masculinus) after matching sealed connection with inner conical surface
The A chambers communicated with A hydraulic fluid ports, the B chambers, the spool chamber that are communicated with B hydraulic fluid ports；The first piston portion of the spool and end cover lumen are slidably
Ground is tightly connected, and second piston portion and the body cavity slidable connection of spool, second piston portion end is connected by spring
The cushion cover of body cavity is connect, the cushion cover is sealed slidingly against with body cavity to be connect.
Further, the first piston portion is equipped with sealing ring.
Further, the spool positioned at B intracavitary is equipped with intercommunicating pore, and B chambers and spool chamber are linked as one by the intercommunicating pore
Body.
Further, the cushion cover end connects an adjusting rod, and the adjusting rod is through valve deck and stretches out valve deck, adjusting rod
It is fixed by locking nut.
Implement function course description：
When the first electromagnetic direction valve obtains electric, the first inserted valve is opened, and the second inserted valve is closed.The high pressure of accumulator at this time
Oil enters the X mouths of shut-off valve by the first inserted valve and flows into end cover lumen, hereafter in two kinds of situation：The first situation：Work as oil
Mouthful A and X mouthful of oil pressure is more than the oil pressure of hydraulic fluid port B, then spool overcomes spring bullet under the action of X mouthfuls with the high pressure oils of A hydraulic fluid ports
Power Forward makes A hydraulic fluid ports unidirectionally lead to B hydraulic fluid ports, and A chambers and B chamber intercommunications, Medium Oil can be gone out by hydraulic fluid port A oil inlets B at this time；Second of feelings
Condition：When A hydraulic fluid ports and the X mouthfuls of oil pressure for being respectively less than B hydraulic fluid ports, A hydraulic fluid ports are in cut-off state with B hydraulic fluid ports at this time, and the two is not connected.
When the first electromagnetic direction valve dead electricity, the first inserted valve is closed, and the second inserted valve is opened.Accumulator and cut-off at this time
The X mouths of valve disconnect, and spool moves afterwards under the action of the spring to be resetted and the fluid in end cover lumen is pushed to flow back to oil through the second inserted valve
Until A hydraulic fluid ports and B hydraulic fluid ports are not connected, A chambers completely cut off case with B chambers.
Shut-off valve working condition table：
So shut-off valve to open must satisfy the first electromagnetic direction valve be powered simultaneously A hydraulic fluid ports be greater than hydraulic fluid port B the two
Condition.
At the end of quick injection, the Medium Oil of end cover lumen flows back to fuel tank immediately, and shut-off valve ends immediately, is increasing in this way
Pressure immediately enters at first builds pressure condition.If there is exception, such as：Quick injection does not terminate also to begin to be pressurized, at this time A oil
Mouthful and B hydraulic fluid ports be off so the problem that Medium Oil " pouring in down a chimney " leads to energy storage pressure shakiness will not occur.
The beneficial effects of the utility model：The utility model by shut-off valve and the first electromagnetic direction valve, the first inserted valve,
Second inserted valve is used cooperatively, the connection of control accumulator and shot sleeve that can be quick and stable and the state being closed；With building
The pressure advantage that the time is short, stability is high, while the stroke that can also be moved in body cavity by adjusting rod adjusting spool, to
The governing response time to a certain degree.
Description of the drawings
The required attached drawing of utility model will be briefly described below, it should be apparent that, in being described below
Attached drawing is only the preferred embodiment of the utility model, for those of ordinary skill in the art, is not paying creative labor
Under the premise of dynamic, other attached drawings can also be obtained according to this attached drawing.
Fig. 1 is that traditional check valve uses schematic diagram in the fast shot oil circuit of magnesium alloy cold-chamber die casting machine
Fig. 2 is the structural schematic diagram of traditional one-way valve
Fig. 3 is the structural schematic diagram of the utility model
Fig. 4 is that the utility model uses schematic diagram in fast shot oil circuit
Specific implementation mode
Below in conjunction with embodiment and Figure of description, to the technical scheme in the embodiment of the utility model carry out it is clear,
It is fully described by.
A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine as shown in Figure 3, including the first electromagnetic direction valve 1,
The holes P of first inserted valve 2, the second inserted valve 3 and shut-off valve 4, first electromagnetic direction valve 1 connect accumulator 5, the first electricity
The holes A, the holes B of magnetic direction valve 1 correspond to the control hole C of the control hole C, the second inserted valve 3 that are connected to the first inserted valve 2 to control respectively
Make the break-make of the first inserted valve 2 and the second inserted valve 3.The holes B of first inserted valve 2 are connected to accumulator 5, the second inserted valve 3
The holes A be connected to fuel tank 6, the holes A of the first inserted valve 2 be connected to the holes B of the second inserted valve 3 and with the X of shut-off valve 4 mouths 4061 mutually
Logical, the X mouths 4061 are used to control the break-make between the A hydraulic fluid ports 4022 of shut-off valve 4 and B hydraulic fluid ports 4023.
The shut-off valve 4 includes spool 401, valve body 402, spring 403, cushion cover 404, valve deck 405, end cap 406, the valve
Body 402 is internally provided with body cavity, one end connection end cap 406 of valve body 402, and the other end connects valve deck 405, the end cap 406
With X mouths 4061, X mouths 4061 are connected to end cover lumen 4062；The body cavity is internally provided with spool 401, the spool 401
Both ends are respectively first piston portion 4011, second piston portion 4012 with piston structure, are set in the first piston portion 4011
There is sealing ring 4013.The middle part of the valve body 402 has inner conical surface 4021 correspondingly in the middle part of spool 401 with can be tightly connected with it
Male cone (strobilus masculinus) 4011,4021 both sides of inner conical surface of valve body 402 are equipped with adjacent A hydraulic fluid ports 4022 and B hydraulic fluid ports 4023, the male cone (strobilus masculinus)
4011 with inner conical surface 4021 matching be tightly connected after body cavity is divided into the A chambers 4024 communicated with A hydraulic fluid ports 4022, with B oil
B chambers 4025, the spool chambers 4026 that mouth 4023 communicates, the spool 401 in B chambers 4025 is equipped with intercommunicating pore 4014, described
B chambers 4025 and spool chamber 4026 are linked together by intercommunicating pore 4014.
The first piston portion 4011 of the spool 401 is sealed slidingly against with end cover lumen 4062 to be connect, and the of spool 401
Two piston portions 4012 and body cavity slidable connection, 4012 end of second piston portion passes through in 403 connection valve body of spring
The cushion cover 404 of chamber, the cushion cover 404 is sealed slidingly against with body cavity to be connect.
404 end of the cushion cover connects an adjusting rod 407, and the adjusting rod 407 is threadedly coupled with valve deck 405 and runs through valve
Lid 405, adjusting rod 407 are fixed by locking nut 408.
Fig. 4 illustrates the effect that the utility model controls accumulator 5 and 6 break-make of injection oil cylinder in fast shot oil circuit,
The A hydraulic fluid ports 4022 of middle shut-off valve 4 are connected to the holes A of third inserted valve 7, and B hydraulic fluid ports 4023 are connected to injection oil cylinder 6.The third inserting
The 5 three's intercommunication of the holes B of valve 7, the holes P of the second electromagnetic direction valve 8 and accumulator, control hole C the second electricity of connection of third inserted valve 7
The holes A of magnetic direction valve 8, so the switch of the second electromagnetic direction valve 8 control third inserted valve 7, and third inserted valve 7 controls accumulation of energy
The break-make of oil circuit between device 5 and shut-off valve 4.The quick injection course of work：
When the quick injection of die casting machine, the second electromagnetic direction valve 8 it is electric after control third inserted valve 7 open, at the same time the
One electromagnetic direction valve 1 electric must be such that the first inserted valve 2 opens, and the second inserted valve 3 is closed.The sub-fraction high pressure of accumulator 5 at this time
Oil enters the X mouths of shut-off valve 4 by the first inserted valve 2 and flows into end cover lumen 4062, and the main high voltage oil of accumulator 5 is through third
Inserted valve 7 reaches the A hydraulic fluid ports of shut-off valve 4, so that A hydraulic fluid port oil pressure is more than B hydraulic fluid port oil pressure, spool 401 is in end cover lumen 4061 and A oil
Mouthful high pressure oil push under overcome the Forward of 403 elastic force of spring to keep A hydraulic fluid ports 4022 and B hydraulic fluid ports 4023 unidirectionally logical, at this time A chambers 4024 with
The high pressure oil of 4025 intercommunication of B chambers, accumulator 5 enters shut-off valve 4 after third inserted valve 7, finally spurts into the nothing of injection oil cylinder 6
Rod cavity realizes quick injection.
Fast shot terminates, and the first electromagnetic direction valve 1, the second electromagnetic direction valve 8 while dead electricity make third inserted valve 7 be closed,
The high pressure oil of accumulator 5 can not reach the A hydraulic fluid ports 4022 of shut-off valve 4 through third inserted valve 7, while the first inserted valve 2 is closed, the
Two inserted valves 3 are opened, and the rear shifting under the effect of spring 403 of spool 401, which resets, makes A hydraulic fluid ports 4022 be in two-way section with B hydraulic fluid ports 4023
Only state, while spool pushes the Medium Oil in end cover lumen 4062 to flow back to fuel tank, A hydraulic fluid ports 4022 and B oil through the second inserted valve 3
It is pressurized after mouth cut-off.
It is inserted by shut-off valve 4 and the first electromagnetic direction valve 1, the first inserted valve 2, second by replacing with traditional check valve
The disabling mechanism that valve 3 forms is filled, the state of control accumulator 5 and the connection and closure of shot sleeve that can be quick and stable has
Build the pressure advantage that the time is short, stability is high.
Obviously, described embodiment is only the preferred embodiment of the utility model, rather than whole embodiments.It is based on
The embodiments of the present invention, those skilled in the art obtain other implementations without making creative work
Example, shall fall within the protection scope of the present invention.
Claims (5)
1. a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine, it is characterised in that：Including the first electromagnetic direction valve, first
Inserted valve, the second inserted valve and shut-off valve, the holes P of first electromagnetic direction valve, the holes A, the corresponding connection accumulation of energy respectively of the holes B
The control hole C of device, the control hole C of the first inserted valve, the second inserted valve, the holes the B connection accumulator of first inserted valve, second
The holes A of inserted valve are connected to fuel tank, the holes A of the first inserted valve be connected to the holes B of the second inserted valve and with the X of shut-off valve mouth intercommunications,
Described X mouthfuls opening and the closing for controlling shut-off valve.
2. a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine according to claim 1, it is characterised in that：It is described
Shut-off valve includes spool, valve body, spring, cushion cover, valve deck, end cap, one end connection end cap of valve body, other end connection valve deck, institute
Stating end cap has X mouthfuls, X mouthfuls of connection end cover lumens；The valve inner is equipped with body cavity, and the body cavity is internally provided with valve
The both ends of core, the spool are respectively first piston portion, second piston portion with piston structure；Have in the middle part of the valve body interior
Correspondingly there is the conical surface male cone (strobilus masculinus) that can be tightly connected with it, valve body inner conical surface both sides to be equipped with adjacent A hydraulic fluid ports and B at spool middle part
Body cavity is divided into the A chambers communicated with A hydraulic fluid ports and B hydraulic fluid ports by hydraulic fluid port, the male cone (strobilus masculinus) after being tightly connected with inner conical surface matching
B chambers, the spool chamber communicated；The first piston portion of the spool is sealed slidingly against with end cover lumen to be connect, and the second of spool lives
Piston part seals slidingly against with body cavity and connect, and second piston portion end connects the cushion cover of body cavity by spring,
The cushion cover is sealed slidingly against with body cavity to be connect.
3. a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine according to claim 2, it is characterised in that：It is located at
The spool of B intracavitary is equipped with intercommunicating pore, and B chambers are linked together by the intercommunicating pore with spool chamber.
4. a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine according to claim 2, it is characterised in that：It is described
First piston portion is equipped with sealing ring.
5. according to a kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine of claim 2-4 any one of them, feature
It is：The cushion cover end connects an adjusting rod, and the adjusting rod is through valve deck and stretches out valve deck, and adjusting rod passes through locking nut
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131417.7U CN207629168U (en) | 2017-09-05 | 2017-09-05 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721131417.7U CN207629168U (en) | 2017-09-05 | 2017-09-05 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207629168U true CN207629168U (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721131417.7U Active CN207629168U (en) | 2017-09-05 | 2017-09-05 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363239A (en) * | 2017-09-05 | 2017-11-21 | 广东顺德固德威精密机械有限公司 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
-
2017
- 2017-09-05 CN CN201721131417.7U patent/CN207629168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363239A (en) * | 2017-09-05 | 2017-11-21 | 广东顺德固德威精密机械有限公司 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
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