CN205780909U - A kind of mould vaccum stop valve - Google Patents
A kind of mould vaccum stop valve Download PDFInfo
- Publication number
- CN205780909U CN205780909U CN201620636636.XU CN201620636636U CN205780909U CN 205780909 U CN205780909 U CN 205780909U CN 201620636636 U CN201620636636 U CN 201620636636U CN 205780909 U CN205780909 U CN 205780909U
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- China
- Prior art keywords
- core print
- airway
- mould
- air intake
- valve body
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Abstract
This utility model relates to vacuum valve technical field, it is specially a kind of mould vaccum stop valve, including valve body and spool, described valve body is provided with buffer loop, air intake duct and exhaust duct, described buffer loop connects with described air intake duct and described exhaust duct respectively, also include piston, in the end sleeve of described piston is located at described exhaust duct and determine valve body relative movement with described, described piston is provided with airway, described spool is for be plugged in described airway actively, described spool includes core bar and core print, described core print is positioned at the one end at exhaust duct, it is provided with interface channel between described exhaust duct and described air intake duct, the front end of described core print is plugged in described interface channel, described airway is opened or closed by described core print by mobile in described interface channel.This utility model simple in construction, easy to use, it is possible to the air being smoothly discharged out in mould, good exhaust effect, security reliability are high, and are capable of automatization and reset, and improve production efficiency.
Description
Technical field
This utility model relates to vacuum valve technical field, is specially a kind of mould vaccum stop valve.
Background technology
The purposes of die casting machine, is with molten metal mating mold manufactures such as copper, magnesium, zinc, aluminum, in order to allow the air energy in mould
Enough discharge smoothly, it is therefore necessary on mould of die casting machine, arrange vacuum valve, coordinate the start of vacuum compressor, in being mould
Air discharge.Current die vacuum valve be by side by side fixing connect by pad and open circuit pin, after by pad pressurized
Move back drive open circuit pin synchronization retrogressing simultaneously thus close exhaust passage and form open circuit.Its process is to rush when aluminum water arrives by pad
The pressure hit will be pushed by pad and retreat, and drive open circuit pin to return simultaneously, thus play the effect stoping aluminum water to enter.But
Connecting the passage by pad and open circuit pin comparatively short and straight, its resistance is the least, the advance that aluminum soup is retreated by pad in promotion
Enter spool and i.e. pour the exhaust passage of open circuit pin so that open circuit pin cannot normal reset, thus cannot normally inhale vacuum, the row of causing
Air drain blocking is the most stuck or damages valve body, and the blocking of vacuum valve has had a strong impact on production movable rate and frequent shutdown, and
Also improve the fraction defective of aluminum products.Such as: the one described in the Chinese utility model patent of Application No. 201020257912.4
Die vacuum valve, as the switch of mold cavity vacuum, described die vacuum valve includes moving valve, determines valve body, pressurized
Pin, open circuit pin fix, with the described root by pad and described open circuit pin, the rest pad being connected, and are provided with on rear side of described rest pad
For pushing forward by pad and the compression spring of open circuit pin, described determine valve body and offer and fitted mutually with open circuit pin by pad for described
Two through holes inserted with joining, offer annular vent groove at described open circuit pin joint proximal end, described determine valve body and be provided with and institute
State the steam vent of annular vent groove connection, described moving valve with described determine to be provided with between valve body be connected the increasing of said two through hole
Pressure groove, described supercharging groove is formed and in full of twists and turns shape by multiple rebate concatenation, and its shortcoming is when aluminum liquid is subject to
When the pressure of pad is less than the elastic force of compression spring, aluminum liquid is easily accessible in the annular vent groove of open circuit pin, causes vacuum valve to block up
Plug.
Utility model content
A purpose of the present utility model is to provide a kind of mould vaccum stop valve, and simple in construction, blockage resisting reliability are high.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of mould vacuum cut-off
Valve, including valve body and spool, described valve body is provided with buffer loop, air intake duct and exhaust duct, and described air intake duct is arranged on described
The side that exhaust duct is relative, described buffer loop connects with described air intake duct and described exhaust duct respectively, also includes piston, described
In the end sleeve of piston is located at described exhaust duct and determining valve body relative movement with described, described piston is provided with and runs through described work
Plug airway, described airway connects with described buffer loop, described spool for be plugged in described airway actively, institute
State spool and include that core bar and core print, described core print are positioned at the one end at exhaust duct, set between described exhaust duct and described air intake duct
Having interface channel, the front end of described core print to be plugged in described interface channel, described core print is by moving in described interface channel
Move and described airway is opened or closed.
As preferably, the inwall laminating of the cylindrical of described core print and described airway, described core print is provided with air channel, institute
State the diameter outside diameter less than described core print of core bar, between the inwall of described core bar and described airway, be provided with gap.
As preferably, being provided with limited step in described airway, described limited step is positioned at the rear side of described core print, is used for
Described core print is stoped to be fully removed in described interface channel.
As preferably, described air channel is arranged on the rear side of described core print, and through the rear side end face of described core print；When
When described core print is positioned at opening, described air channel is positioned at outside described airway, described buffer loop and described airway
Connected by described air channel；When described core print is positioned at closed mode, described air channel is positioned at described airway, blocks institute
State buffer loop to connect with described airway.
As preferably, the displacement of described core print is more than the length of described air channel.
As preferably, the front end face of described core print is provided with dashpot.This dashpot is arc groove, to the aluminum of quickly flowing
Liquid is when air intake duct intake valve intracoelomic cavity, and the front end face of aluminum liquid impact core print easily makes aluminum liquid produce turbulent flow, the aluminum to rear entrance
Liquid produces resistance, reduces the aluminum liquid impulsive force to core print, makes core print to be pushed into smoothly in airway, make airway block.
As preferably, the end of described airway is provided with bayonet socket, and one end relative with described core print of described core bar plugs
In described bayonet socket, the outer wall laminating of the inwall of described bayonet socket and described core bar, described core bar is positioned at one end of bayonet socket and is provided with
Groove.
As preferably, one end relative with described core print of described core bar is provided with core tail, and described core tail is arranged on described card
The outside of mouth, the diameter of described bayonet socket is less than the outside diameter of described core tail.
As preferably, described piston connects reset assembly.This return unit uses cylinder or oil cylinder, when aluminum liquid is in valve body
After condensation, by reset assembly, piston and core bar are pulled out in airway, it is simple to the aluminium block demoulding, complete reset assembly after the demoulding
The plug that would like to live is shifted onto in airway again with core bar.
As preferably, described valve body includes determining valve body and moving valve, and described buffer loop and exhaust duct are arranged on described fixed
On valve body, described air intake duct sets up separately symmetrically to be determined on valve body and described moving valve described, determines valve body and described dynamic by described
Valve body merges the air intake duct that formation is complete；Described buffer loop include being symmetricly set on described air intake duct both sides the first loop and
Second servo loop, described first loop is extended against airintake direction to described air intake duct front end by described air intake duct end, and described first
The one end in loop connects with described air intake duct, and its other end is provided with relief area；Described second servo loop is arc-shaped distribution, its one end
With described first circuit communication, the other end is arranged on the porch of described exhaust duct.
The beneficial effects of the utility model: this utility model simple in construction, easy to use, it is possible to be smoothly discharged out in mould
Air, airway can be closed rapidly when aluminum liquid enters in valve body, make aluminum liquid condense in buffer loop, it is to avoid airway
Blocking, good exhaust effect, security reliability are high, and are capable of automatization and reset, and improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the exploded view of this utility model embodiment；
Fig. 2 is the elevational cross-sectional view of this utility model embodiment；
Fig. 3 is the structural representation determining valve body in this utility model embodiment；
Fig. 4 is the structural representation of the spool in this utility model embodiment；
Fig. 5 is the structural representation of the piston in this utility model embodiment；
In figure: 1-moving valve, 2-determines valve body, 21-air intake duct, 22-buffer loop, 221-the first loop, 222-second time
Road, 223-relief area, 23-interface channel, 24-exhaust duct, 3-spool, 31-core print, 311-air channel, 312-dashpot, 32-
Core bar, 321-groove, 33-core tail, 4-piston, 41-airway, 42-limited step, 43-bayonet socket.
Detailed description of the invention
Specific examples below is only to explanation of the present utility model, and it is not to restriction of the present utility model, this
The present embodiment can be made after reading this specification by skilled person as required does not has the amendment of creative contribution,
But as long as all being protected by Patent Law in right of the present utility model.
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, a kind of mould vaccum stop valve, including valve body, spool 3 and piston 4, institute
Stating valve body to include determining valve body 2 and moving valve 1, described valve body is provided with buffer loop 22, air intake duct 21 and exhaust duct 24, described in enter
Air flue 21 is arranged on the side that described exhaust duct 24 is relative, described buffer loop 22 respectively with described air intake duct 21 and described aerofluxus
Road 24 connects.Described buffer loop 22 and exhaust duct 24 are arranged on described to be determined on valve body 2, and described air intake duct 21 sets up separately symmetrically
Described determine on valve body 2 and described moving valve 1, determine valve body 2 and described moving valve 1 merges and forms complete air intake duct by described
21.Described buffer loop 22 includes the first loop 221 and second servo loop 222, the institute being symmetricly set on described air intake duct 21 both sides
State the first loop 221 to be extended against airintake direction to described air intake duct 21 front end by described air intake duct 21 end, described first loop
One end of 221 connects with described air intake duct 21, and its other end is provided with relief area 223；Described second servo loop 222 divides for arc-shaped
Cloth, its one end connects with described first loop 221, and the other end is arranged on the porch of described exhaust duct 24.
In the end sleeve of described piston 4 is located at described exhaust duct 24 and determine valve body 2 relative movement, described piston with described
4 are provided with the airway 41 running through described piston 4, and described airway 41 connects with described buffer loop 22, and described spool 3 is for living
It is plugged in described airway 41 dynamicly.
As shown in Figure 2 and Figure 4, described spool 3 includes that core bar 32 and core print 31, described core print 31 are positioned at exhaust duct 24
One end, is provided with interface channel 23 between described exhaust duct 24 and described air intake duct 21, the front end of described core print 31 is plugged on described
In interface channel 23, described airway 41 is opened or closed by described core print 31 by mobile in described interface channel 23.
The inwall laminating of the cylindrical of described core print 31 and described airway 41, the diameter of described core bar 32 is less than described core print
The outside diameter of 31, is provided with gap between described core bar 32 and the inwall of described airway 41.Described core print 31 is provided with ventilation
Groove 311, described air channel 311 is arranged on the rear side of described core print 31, and through the rear side end face of described core print 31.When described
When core print 31 is positioned at opening, described air channel 311 is positioned at outside described airway 41, and described buffer loop 22 is logical with described
Air flue 41 is connected by described air channel 311；When described core print 31 is positioned at closed mode, described air channel 311 is positioned at described
In airway 41, block described buffer loop 22 and connect with described airway 41.The displacement of described core print 31 is more than described
The length of air channel 311.Being provided with limited step 42 in airway 41, described limited step 42 is positioned at the rear side of described core print 31,
For stoping described core print 31 to be fully removed in described interface channel 23.
As shown in Figure 2 and Figure 5, the end of described airway 41 is provided with bayonet socket 43, described core bar 32 with described core print 31
Relative one end is plugged in described bayonet socket 43.The outer wall laminating of the inwall of described bayonet socket 43 and described core bar 32, described core bar
32 one end being positioned at bayonet socket 43 are provided with groove 321.One end relative with described core print 31 of described core bar 32 is provided with core tail 33,
Described core tail 33 is arranged on the outside of described bayonet socket 43, and the diameter of described bayonet socket 43 is less than the outside diameter of described core tail 33.Institute
Stating piston 4 connection and have reset assembly, this return unit uses cylinder or oil cylinder.
The front end face of core print 31 is provided with dashpot 312, and this dashpot 312 is arc groove.When aluminum liquid enters mold cavity
Time interior, the air in mould enters in valve body from air intake duct, and enters into the interior discharge of piston 4, then aluminum by air channel 311
Liquid enters in valve body from air intake duct 21, and impacts core print 31, is pushed by core print 31 in the airway 41 of all pistons 4, by airway
41 entrances are blocked, and now air channel 311 is positioned at airway 41, make valve inner form a space closed, and aluminum liquid can only
Condense in being flowed into buffer loop 22.After aluminum liquid is condensed into aluminium block, reset assembly pulls piston 4, piston 4 band movable valve plug
3 with aluminium block split, then open moving valve and carry out the demoulding；The demoulding merges moving valve 1 after completing and determines valve body 2, and reset assembly pushes away
Dynamic piston 4 makes it reset, and now spool 3 is also for being in the state that resets completely, and when to mould evacuation, body cavity is also formed
Vacuum, owing to the tail end i.e. core tail 33 of spool 3 is under atmospheric pressure, produces pressure differential with core print 31, thus by spool 3 by core
Tail 33 promotes to core print 31 direction, makes spool 3 reset.
Claims (10)
1. a mould vaccum stop valve, including valve body and spool (3), described valve body is provided with buffer loop (22), air intake duct
(21) and exhaust duct (24), described air intake duct (21) is arranged on the side that described exhaust duct (24) is relative, described buffer loop
(22) connect with described air intake duct (21) and described exhaust duct (24) respectively, it is characterised in that: also include piston (4), described work
In the end sleeve of plug (4) is located at described exhaust duct (24) and determining valve body (2) relative movement with described, described piston sets on (4)
Having the airway (41) running through described piston (4), described airway (41) connects with described buffer loop (22), described spool
(3) for being plugged in actively in described airway (41), described spool (3) includes core bar (32) and core print (31), described core print
(31) it is positioned at the one end at exhaust duct (24) place, between described exhaust duct (24) and described air intake duct (21), is provided with interface channel
(23), the front end of described core print (31) is plugged in described interface channel (23), and described core print (31) is by leading in described connection
Move in road (23) and described airway (41) is opened or closed.
A kind of mould vaccum stop valve the most according to claim 1, it is characterised in that: the cylindrical of described core print (31) and institute
Stating the inwall laminating of airway (41), described core print (31) is provided with air channel (311), and the diameter of described core bar (32) is less than institute
State the outside diameter of core print (31), between the inwall of described core bar (32) and described airway (41), be provided with gap.
A kind of mould vaccum stop valve the most according to claim 2, it is characterised in that: described airway is provided with limit in (41)
Position step (42), described limited step (42) is positioned at the rear side of described core print (31), is used for stoping described core print (31) from described
Interface channel is fully removed in (23).
A kind of mould vaccum stop valve the most according to claim 3, it is characterised in that: described air channel (311) is arranged on
The rear side of described core print (31), and through the rear side end face of described core print (31)；When described core print (31) is positioned at original position
Time, described air channel (311) is positioned at described airway (41) outside, and described buffer loop (22) passes through with described airway (41)
Described air channel (311) connects；When described core print (31) is positioned at closed mode, described air channel (311) is positioned at described ventilation
In road (41), block described buffer loop (22) and connect with described airway (41).
A kind of mould vaccum stop valve the most according to claim 4, it is characterised in that: the displacement of described core print (31)
Length more than described air channel (311).
A kind of mould vaccum stop valve the most according to claim 5, it is characterised in that: the front end face of described core print (31) sets
There is dashpot (312).
7. according to a kind of mould vaccum stop valve described in claim 1 or 6, it is characterised in that: the end of described airway (41)
End is provided with bayonet socket (43), and one end relative with described core print (31) of described core bar (32) is plugged in described bayonet socket (43), institute
Stating the inwall of bayonet socket (43) and the outer wall laminating of described core bar (32), described core bar (32) is positioned at one end of bayonet socket (43) and is provided with
Groove (321).
A kind of mould vaccum stop valve the most according to claim 7, it is characterised in that: described core bar (32) with described core
One end that head (31) is relative is provided with core tail (32), and described core tail (32) is arranged on the outside of described bayonet socket (43), described bayonet socket
(43) diameter is less than the outside diameter of described core tail (32).
A kind of mould vaccum stop valve the most according to claim 8, it is characterised in that: described piston (4) connects reset
Assembly.
A kind of mould vaccum stop valve the most according to claim 1, it is characterised in that: described valve body includes determining valve body (2)
Being arranged on moving valve (1), described buffer loop (22) and exhaust duct (24) described determines on valve body (2), described air intake duct (21)
Set up separately symmetrically and determine on valve body (2) and described moving valve (1) described, determine valve body (2) and described moving valve (1) conjunction by described
And form complete air intake duct (21)；Described buffer loop (22) includes being symmetricly set on the first of described air intake duct (21) both sides
Loop (221) and second servo loop (222), described first loop (221) by described air intake duct (21) end to described air intake duct
(21) front end extends against airintake direction, and one end of described first loop (221) connects with described air intake duct (21), and its other end sets
There is relief area (223)；Described second servo loop (222) is arc-shaped distribution, and its one end connects, separately with described first loop (221)
One end is arranged on the porch of described exhaust duct (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620636636.XU CN205780909U (en) | 2016-06-25 | 2016-06-25 | A kind of mould vaccum stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620636636.XU CN205780909U (en) | 2016-06-25 | 2016-06-25 | A kind of mould vaccum stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780909U true CN205780909U (en) | 2016-12-07 |
Family
ID=58129805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620636636.XU Withdrawn - After Issue CN205780909U (en) | 2016-06-25 | 2016-06-25 | A kind of mould vaccum stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972225A (en) * | 2016-06-25 | 2016-09-28 | 湖州安达汽车配件有限公司 | Vacuum stop valve for mold |
-
2016
- 2016-06-25 CN CN201620636636.XU patent/CN205780909U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972225A (en) * | 2016-06-25 | 2016-09-28 | 湖州安达汽车配件有限公司 | Vacuum stop valve for mold |
| CN105972225B (en) * | 2016-06-25 | 2018-06-05 | 湖州安达汽车配件有限公司 | A kind of mold vaccum stop 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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161207 Effective date of abandoning: 20180605 |